Abstract: A clamping device includes a supporting base, a frame member, two slidable members, and a bolt. The frame member is mounted on the supporting base and defines a through hole. The frame member further defines two mounting holes on two opposite walls of the through hole. Each slidable member comprises a clamping portion and a matching portion connected to each other, each clamping portion defines a clamping surface. The clamping surface defines clamping grooves. A saw-toothed structure is formed on an inner wall of each clamping groove. Each matching portion is received in the through hole and defines a threaded hole. The bolt is threaded and passes through the threaded holes. The threads of the bolt engage with the threaded holes, two ends of the bolt are respectively received in the mounting holes. The two slidable members slide towards or slide away from each other when the bolt is rotated.

Abstract: A measuring apparatus for measuring a counterbore hole chamfer depth of a workpiece, includes a positioning member having a guiding hole aligned with the counterbore hole of the workpiece, a support member having a receiving hole aligned with the guiding hole, and a measuring device supported by the support member. The measuring device includes a gauge, a retractable pole connected to the gauge and extending into the receiving hole, and a measuring head portion connected to the retractable pole and movably received in the guiding hole. The measuring head portion has a cone-shaped end for abutting on an inner wall of the counterbore hole chamfer, thereby making the measuring head portion move back in the guiding hole and the retractable pole retract. The gauge is configured for calculating and displaying the depth of the counterbore hole chamfer based on the distance the retractable pole retracts.

Abstract: A deformation testing device includes a base holding a workpiece and a testing machine arranged on the base. The testing machine includes a distance-measurement device and a force-applying device. The distance-measurement device includes a distance meter metering a moving distance of an elastic portion of the workpiece and includes a measurement probe. The force-applying device includes a force meter and a transmission member. The force meter slidably is mounted on the base and includes a force-applying post. The transmission member includes a first post and a second post secured to the first post. The first post is aligned with the force-applying post transmits a force from the force-applying post to the elastic portion. The measurement probe abuts against the second post. The force meter applies and measures a force acted upon the elastic portion through the force-applying post and the first post.

Abstract: A testing device for testing of rivets is provided. The testing device includes a first holding element and a second holding element that can be driven toward the first holding element to cooperatively define at least one hole on which at least one type of rivet can be installed. The second holding element also can be driven to separate from the first holding element to release the installed rivets for analyses.

Abstract: A torque testing device includes a base, a clamping device for clamping a fastener, a holing cylinder mounted on the base, a mounting beam mounted on the holding cylinder, a moving component, a rotation component, and a torque wrench. The mounting beam defines a nesting hole. The moving component includes a tubular member received in the nesting hole and a driving component mounted on the mounting beam for driving the tubular member towards the fastener. The rotation component includes a rotation shaft and at least one rotation element positioned between the rotation shaft and the tubular member. The rotation shaft is moved with the tubular member towards the fastener. The rotation shaft is capable of being rotated about the tubular member through the rotation element. The torque wrench is connected to the rotation shaft for applying torque to the rotation shaft and revealing the value of the torque.

Abstract: A test device for testing whether the distance between centers meets specifications includes a support member, a benchmark member set on a first end of the support member, to be positioned at the first through hole, a test member set on a second end of the support member, to be positioned at the second through hole, and a sliding member defining a receiving slot. The test member is also slidable in a direction perpendicular to the slidable direction of the test member. If the test member can enter the receiving slot, the first article is qualified, if test member cannot enter the receiving slot, the second article does not meet the required standard.

Abstract: A test device for testing whether an axis of a first portion of an article is coaxial with an axis of a second portion of the article includes a supporting member, a benchmark member fixed to a first end of the support member, and a test member slidably received in a second end of the supporting member opposite to the first end. The benchmark member includes a first test portion to position the first portion of the article that are coaxial within a coaxial tolerance. The test member includes a second test member coaxial with the first test portion. If the second portion is capable of being positioned to the second test portion, the article is qualified. If the second portion is incapable positioned to the second test portion, the article is unqualified.

Abstract: Provided is a test device for checking whether the position of a first circular through hole defined in a workpiece meets a tolerance requirement. The test device includes a base, a positioning block, a test pin, a floating support block, and a standard design part. The positioning block is mounted on the base and positions the workpiece. The test pin includes a cylindrical rod capped with a conical part. The floating support block is coupled to the base and supports the test pin. A central axis of the test pin is coincident with a central axis of the first circular through hole. The standard design part is mounted on the base and defines a second circular through hole. If the cylindrical rod can insert into the second circular through hole, the positioning of the first circular through hole meets the tolerance requirement.

Abstract: The present disclosure provides a clamp including a base with a holding surface, a first movable element, a second movable element opposite to the first movable element, and a third movable element with two arms opposite to each other. The first, the second, and the third movable elements are mounted on the holding surface of the base, and are slidable relative to the holding surface. Each arm defines a slope face the slope of the other arm. The first and the second movable elements are located between the two arms. The first movable element is resisted one of slope, and the second movable element is resisted the other of the slope. When the third movable element moves, the two slopes move relative to the first and the second movable elements, and the first and the second movable elements move toward or away from each other.

Abstract: A dummy for testing whether sizes of receiving spaces for receiving electrical elements in an enclosure are suitable or not. The dummy includes a frame and a handle attached to the frame. The frame includes a bottom wall. A number of wheels are rotatably attached to opposite ends of the bottom wall. Thereby, the frame is slidably received in the enclosure. A width and a height of the frame are respectively equal to minimum values of a width and height of one of the receiving spaces.

Abstract: A detecting apparatus is capable of detecting a vertical distance between a first axis and a second axis on a workpiece. The detecting apparatus includes a supporting plate, a first positioning member, a second positioning member, and a measuring member. The first positioning member and the second positioning member are arranged on the supporting plate along the first axis, and fix the horizontal position of the workpiece. The measuring member is arranged on the supporting plate along the second axis, and is capable to slide along the second axis. The measuring member is able to pass a bottom hole of the workpiece if the workpiece is qualified, and is unable to pass the bottom hole if the workpiece is not qualified.

Abstract: An apparatus for testing strength of a corner portion of an object includes a support platform, an installation mechanism having a slidable plate mounted on the platform, a force gauge fixed to the slidable plate, a drive mechanism connected to the slidable plate to move the slidable plate, and a push-pull mechanism. The push-pull mechanism is connected to the force gauge to be pushed or pulled by the force gauge and exerts push or pull force on the corner portion of the object.

Abstract: A testing apparatus is provided to test whether a distance between a first and a second portions of an object is eligible. The testing apparatus includes a worktable, a positioning mechanism to support the object, a pressing mechanism to secure the object, and an actuating mechanism. The actuating mechanism outputs signals to reflect the relative position of the correspond to-be-tested portion and the actuating mechanism, therefore a controlling device indicates whether the distance between the to-be-tested portion and the base plane is eligible or not according the outputting signals of the corresponding actuating mechanism.

Abstract: A permanent deformation measurement apparatus includes a worktable and a measuring device. The worktable includes a supporting surface for supporting an elastic member to be measured. The measuring device includes a base, contact member, an operating member, and a measuring member. The base is fixed on the supporting surface, and defines a guide hole substantially perpendicular to the supporting surface of the worktable. The contact member includes a push rod slidable along the guide hole to contact the elastic member. The operating member is configured for moving the push rod. The measuring member is configured for measuring a position of the push rod when the push rod is in contact with the elastic member.

Abstract: A coating rigidity testing device includes a abrading machine, a base, two racks, and a actuator. The abrading machine is disposed on the base. The abrading machine includes a receiving chamber, a supporting arm, a pressure adjusting structure, and a scratching stylus. The receiving chamber includes a front plate. The extending arm includes a supporting arm is extended outwards from the front plate. The pressure adjusting member is extended outwards from the front plate and disposed above the supporting arm. The scratching stylus is received in the supporting arm, and configured for scratching nicks on a workpiece. The base includes a supporting surface supporting the abrading machine and the workpiece, and two first sidewalls parallel to each other. The two racks are arranged on two first sidewalls. The actuator is configured for driving the receiving chamber to move along the racks on the base.

Abstract: An apparatus for testing strength of a corner portion of an object includes a support platform, an installing mechanism on the platform, a force gauge, a driving mechanism connected to the slidable plate to move the slidable plate, a clamp mechanism for clamping the object in a fixed position, and a push-pull mechanism. The installing mechanism includes two opposite rail plates mounted to the platform, and a slidable plate slidably mounted between the rail plates. The force gauge is fixed to the slidable plate. The push-pull mechanism is connected to the force gauge to be pushed or pulled by the force gauge. The push-pull mechanism comprises two forcing posts to respectively abut against two sides of the object at the corner portion, thereby exerting push or pull force on the two sides of the corner portion to test strength of the corner portion.

Abstract: An apparatus for testing object strength includes a support platform, a force gauge for reading push or pull force exerted on an object, an installation mechanism for slidable installation of the force gauge on the support platform, an installation board supporting the object, a pull-push mechanism connected to the force gauge to be pushed or pulled by the force gauge and exert force on the object, and an adjustment mechanism. The adjustment mechanism includes a pedestal secured to the support platform, a slider slidably mounted to the pedestal, an adjustment rod pivotally mounted to the pedestal and threaded into the slider, and a manipulation member fixed to the adjustment rod. The manipulation member rotates the adjustment rod relative to the slider. Thus the slider slides relative to the pedestal. The installation board adjusts the object relative to the support platform.

Abstract: The disclosure provides a measurement device for measuring a work piece defining a first circular hole and a second circular hole. The measurement device includes a base, a location member fixed on the base, a fixing pin fixed on the location member, and a measuring pin slidably positioned on the location member. The fixing pin and the measuring pin are configured for being received in the first circular hole and the second circular hole of the work piece, respectively. A diameter of the measuring pin is substantially equal to a standard diameter of the second circular hole minus doubled tolerance. The distance between axes of the fixing pin and the measuring pin is substantially equal to a standard value of the distance between centers of the first and second circular holes of the work piece.

Abstract: A positioning device for positioning an object includes a base with a platform and a first positioning unit slidably mounted to the platform. The first positioning unit includes a sliding piece slidable along a direction perpendicular to the platform. The sliding piece defines a substantially V-shaped hole along a direction parallel with the platform for the object extending through the hole. The opening of the “V” of the V-shaped hole faces to a direction perpendicular to the platform.

Abstract: A fixing apparatus is provided to fix a cylindrical object. The fixing apparatus includes a support board, a rotating member rotatably mounted to the support board, a moving member, and a number of positioning members. The rotating member defines a receiving space, and a number of receiving slots communicating with the receiving space. The moving member includes a taper-shaped pushing portion, and the pushing portion is slidably received in the receiving space. The number of positioning members are slidably received in the corresponding receiving slots. Each positioning member includes a slanting surface resisting against a circumference of the pushing portion, and a sliding surface to resist against an intrados of the cylindrical object.