Connection strength testing device

Abstract

The application provides a connection strength testing device, which comprises a mounting seat, an accommodating space is arranged in the mounting seat, the accommodating space is used for fixing a first workpiece, one side of the mounting seat along a first direction is provided with an operation hole, the operation hole is communicated with the accommodating space, a clamping mechanism is arranged, a part of the clamping mechanism extends into the accommodating space through the operation hole, the clamping mechanism can move along the first direction to pull a second workpiece away from the first workpiece, the clamping mechanism comprises a supporting piece and a pressing piece, a clamping space is formed between the supporting piece and the pressing piece, the supporting piece moves in the operation hole along a second direction to extend into the first workpiece and the second workpiece, and the pressing piece abuts against one side of the second workpiece away from the first workpiece in the operation hole along the first direction. The application can improve the testing efficiency and guarantee the accuracy of the testing result.

Description

Technical Field

[0001] This application relates to the field of workpiece testing technology, and in particular to a connection strength testing device. Background Technology

[0002] Electronic products are typically composed of multiple interconnected components. When two components are connected, the connection strength needs to be tested to determine if it is up to standard. During testing, one component is fixed, and a tensile force is applied to the other until they separate, at which point the tensile force value is recorded. In related technologies, a tension head is directly connected to the thread of the component, and the tension is applied through the tension head. However, during testing, abnormalities such as tension head breakage or thread connection failure can easily occur, affecting testing efficiency and the accuracy of the results. Utility Model Content

[0003] This application provides a connection strength testing device to improve testing efficiency and ensure the accuracy of test results.

[0004] The connection strength testing device provided in this application is used to test the connection strength between a first workpiece and a second workpiece. The connection strength testing device includes:

[0005] The mounting base has an internal receiving space for fixing a first workpiece, and the mounting base has an operating hole on one side along a first direction, the operating hole communicating with the receiving space.

[0006] A clamping mechanism, a portion of which extends through the operating hole into the receiving space, is movable in a first direction to pull the second workpiece away from the first workpiece;

[0007] The clamping mechanism includes a support member and a clamping member, and a clamping space is formed between the support member and the clamping member. The support member moves in the second direction within the operating hole to extend between the first workpiece and the second workpiece, and the clamping member abuts against the side of the second workpiece away from the first workpiece in the first direction within the operating hole.

[0008] Optionally, the operating hole includes a test cavity that extends along a first direction;

[0009] The clamping mechanism further includes a guide member, which passes through the test cavity and is slidable along the test cavity. At least one section of the cross-section of the guide member and the test cavity is a non-circular shape that is mutually adapted to each other.

[0010] The support member is detachably fixed to the guide member, and the clamping member is movably connected to the guide member.

[0011] Optionally, when the support member and the guide member are separated from each other, the support member can move in the second direction within the operating hole to extend between the first workpiece and the second workpiece;

[0012] After the support is installed in place, the guide is inserted into the test cavity and connected and fixed to the support, so that the support moves along the first direction with the guide.

[0013] Optionally, the operating hole includes an inlet cavity and a connecting cavity, the inlet cavity being located on one side of the test cavity along the second direction, and the connecting cavity connecting the inlet cavity and the test cavity;

[0014] The support extends from the inlet cavity into the mounting base and moves along the connecting cavity into the test cavity.

[0015] Optionally, the support member includes:

[0016] The main body extends along a first direction and is inserted into the guide member;

[0017] A support portion is disposed on one side of the main body portion along the second direction, and the support portion is used to extend between the first workpiece and the second workpiece.

[0018] Optionally, the clamping mechanism further includes a fastener exposed outside the operating hole, the fastener connecting the guide and the main body.

[0019] Optionally, the clamping member passes through the guide member and is threadedly engaged with the guide member.

[0020] Optionally, the second workpiece has a connecting hole in the center, and the clamping member has a tapered head at one end facing the clamping space;

[0021] A portion of the conical head extends into the connecting hole, and the outer wall of the conical head abuts against the wall of the connecting hole.

[0022] Optionally, the clamping member has a traction head at one end away from the clamping space, and the connection strength testing device further includes a pull rod with two opposing traction claws.

[0023] The traction claw extends between the traction head and the mounting base, the clamping member is clamped between the two traction claws, and the traction head overlaps the traction claw.

[0024] Optionally, the connection strength testing device further includes a base, on which a position adjustment mechanism is provided, and the mounting seat is connected to the position adjustment mechanism.

[0025] The technical solution provided in this application can achieve the following beneficial effects:

[0026] The connection strength testing device provided in this application is used to test the connection strength between a first workpiece and a second workpiece. The connection strength testing device includes a mounting base and a clamping mechanism. The mounting base has an internal accommodating space for fixing the first workpiece. The mounting base has an operating hole on one side along a first direction, which communicates with the accommodating space. A portion of the clamping mechanism extends into the accommodating space through the operating hole. The clamping mechanism can move along the first direction to pull the second workpiece away from the first workpiece. The clamping mechanism includes a support member and a clamping member. A clamping space is formed between the support member and the clamping member. The support member moves along a second direction within the operating hole to extend between the first and second workpieces, and the clamping member abuts against the side of the second workpiece away from the first workpiece within the operating hole along the first direction. Therefore, by supporting and clamping the second workpiece from the outside, the clamping mechanism and the second workpiece as a whole are subjected to force. This can not only disperse the stress and prevent the second workpiece or the clamping mechanism from deforming or breaking, but also increase the connection strength between the second workpiece and the clamping mechanism, preventing the second workpiece from loosening or falling out of the clamping mechanism. This ensures that the connection failure occurs between the first and second workpieces, and thus allows for efficient and accurate testing of the connection strength between the first and second workpieces.

[0027] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the connection strength testing device provided in the embodiments of this application;

[0029] Figure 2 A schematic diagram of the first workpiece and the second workpiece provided in the embodiments of this application;

[0030] Figure 3 for Figure 2 A partial structural diagram showing the connection between the first and second workpieces is shown.

[0031] Figure 4 This is a cross-sectional structural schematic diagram of the connection strength testing device provided in the embodiments of this application;

[0032] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0033] Figure 6 A schematic diagram showing the disassembled state of the connection strength testing device provided in the embodiments of this application;

[0034] Figure 7 This is a three-dimensional structural diagram of the clamping mechanism provided in the embodiments of this application.

[0035] Figure label:

[0036] 1-Mounting base;

[0037] 10 - First board;

[0038] 12 - Second board;

[0039] 14-Support column;

[0040] 16 - First positioning post;

[0041] 17 - Second positioning post;

[0042] 18-screw;

[0043] 19-Operating Hole;

[0044] 191 - Test chamber;

[0045] 192 - Inlet cavity;

[0046] 193 - Connecting cavity;

[0047] 2-Clamping mechanism;

[0048] 20 - Support component;

[0049] 200-Main Body;

[0050] 202-Supporting Section;

[0051] 22-Clamping element;

[0052] 220-conical head;

[0053] 222-Traction head;

[0054] 24-Guide component;

[0055] 26-Fasteners;

[0056] 3-Pull rod;

[0057] 30-Traction claw;

[0058] 4-Base;

[0059] 5-Position adjustment mechanism;

[0060] 6-First workpiece;

[0061] 60-Arc-shaped flange,

[0062] 7-Second workpiece;

[0063] 70 - Connection hole.

[0064] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0066] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0067] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0068] like Figures 1-7 As shown, this application embodiment provides a connection strength testing device for testing the connection strength between a first workpiece 6 and a second workpiece 7. The connection strength testing device includes a mounting base 1 and a clamping mechanism 2. The mounting base 1 has an internal receiving space for fixing the first workpiece 6. When the first workpiece 6 is fixed in the receiving space of the mounting base 1, the second workpiece 7 is connected to the side of the first workpiece 6 along the first direction Y. The mounting base 1 has an operating hole 19 along the first direction Y, which communicates with the receiving space. A portion of the clamping mechanism 2 extends into the receiving space through the operating hole 19. The clamping mechanism 2 can move along the first direction Y to pull the second workpiece 7 away from the first workpiece 6.

[0069] In various embodiments of this application, the first workpiece 6 is a watch bezel, and the second workpiece 7 is a welding nut. The inner wall of the second workpiece 7 has a protruding arc-shaped flange 60, and the second workpiece 7 is welded and fixed to the arc-shaped flange 60, forming a semi-enclosed cantilever support structure. It can be understood that in other embodiments, the first workpiece 6 and the second workpiece 7 can be any two interconnected workpieces.

[0070] During testing, mounting base 1 is fixed to the machine platform of the tensile testing machine. Clamping mechanism 2 passes through operating hole 19 and clamps the second workpiece 7. The test head of the tensile testing machine is connected to clamping mechanism 2. The test head drives clamping mechanism 2 to move along the first direction Y, thereby applying tensile force to the second workpiece 7 until the first workpiece 6 and the second workpiece 7 separate from each other, and the tensile force value is recorded.

[0071] Furthermore, the connection strength testing device also includes a base 4, on which a position adjustment mechanism 5 is provided, and a mounting seat 1 is connected to the position adjustment mechanism 5. The position adjustment mechanism 5 may include at least two slides in different directions, which are connected in sequence to achieve position adjustment in at least two directions. During testing, the base 4 is fixed to the machine platform of the tensile testing machine, and the mounting seat 1 is moved by the position adjustment mechanism 5 to adjust the position of the mounting seat 1 on the machine platform, so that the test head of the tensile testing machine can be directly connected to the clamping mechanism 2, ensuring that the clamping mechanism 2 is only subjected to tensile force along the first direction Y, and preventing the clamping mechanism 2 from being subjected to deflection torque, which would affect the reliability of the test results.

[0072] The mounting base 1 includes a first plate 10 and a second plate 12 arranged opposite to each other. The first plate 10 and the second plate 12 are connected to each other by screws 18 or other means, forming a receiving space between them. The second plate 12 is provided with an operating hole 19. A support column 14 can be provided between the first plate 10 and the second plate 12 to limit the gap between them and prevent the first workpiece 6 from being damaged due to excessive force. Multiple first positioning columns 16 can be provided between the first plate 10 and the second plate 12, with each first positioning column 16 surrounding the first workpiece 6 to accurately position it and prevent it from shifting within the receiving space. At least two second positioning columns 17 can also be provided between the first plate 10 and the second plate 12, connecting them to increase the positional accuracy between them and prevent relative movement.

[0073] Furthermore, the clamping mechanism 2 includes a support member 20 and a clamping member 22, forming a clamping space between the support member 20 and the clamping member 22. That is, the second workpiece 7 is clamped between the support member 20 and the clamping member 22. The support member 20 moves within the operating hole 19 along the second direction X (i.e., the extension direction of the cross-section of the operating hole 19) to extend between the first workpiece 6 and the second workpiece 7. In other words, by moving the support member 20 along the second direction X, the clamping space is brought closer to the second workpiece 7, thereby allowing the second workpiece 7 to extend into the clamping space. The clamping member 22 abuts against the side of the second workpiece 7 opposite to the first workpiece 6 within the operating hole 19 along the first direction Y. That is, by moving the clamping member 22 along the first direction Y, the size of the clamping space is adjusted, causing the support member 20 and the clamping member 22 to abut against opposite sides of the second workpiece 7, thereby achieving reliable clamping.

[0074] Therefore, by supporting and clamping the second workpiece 7 from the outside, the clamping mechanism 2 and the second workpiece 7 are subjected to force as a whole. This not only disperses the stress and prevents the second workpiece 7 or the clamping mechanism 2 from deforming or breaking, but also increases the connection strength between the second workpiece 7 and the clamping mechanism 2, preventing the second workpiece 7 from loosening or falling out of the clamping mechanism 2. This ensures that the connection failure occurs between the first workpiece 6 and the second workpiece 7, and thus the connection strength between the first workpiece 6 and the second workpiece 7 can be tested efficiently and accurately.

[0075] Furthermore, the second workpiece 7 has a connecting hole 70 in the center, and the clamping member 22 has a tapered head 220 at one end facing the clamping space. A portion of the tapered head 220 extends into the connecting hole 70, and the outer wall of the tapered head 220 abuts against the wall of the connecting hole 70, thereby automatically aligning the clamping member 22 with the second workpiece 7 and preventing the second workpiece 7 from slipping off the clamping mechanism 2 and affecting the reliability of the test results.

[0076] Furthermore, the clamping member 22 is rod-shaped, and a traction head 222 is provided at the end of the clamping member 22 away from the clamping space. The connection strength testing device also includes a pull rod 3, which has two opposing traction claws 30. The traction claws 30 extend between the traction head 222 and the mounting base 1, the clamping member 22 is clamped between the two traction claws 30, and the traction head 222 overlaps the traction claws 30. In other words, the connection between the test head and the clamping mechanism 2 is achieved through the pull rod 3. During testing, it is only necessary to hook the pull rod 3 between the test head and the clamping mechanism 2, making the testing operation simpler and more efficient.

[0077] Furthermore, the operating hole 19 includes a test cavity 191 extending along the first direction Y. The clamping mechanism 2 also includes a guide 24, with the support member 20 and the clamping member respectively connected to the guide 24. The guide 24 passes through the test cavity 191 and is capable of sliding along the test cavity 191. At least one section of the cross-section of the guide 24 and the test cavity 191 is a non-circular shape (e.g., square). Through the cooperation between the guide 24 and the test cavity 191, a reliable limiting and guiding effect can be formed on the clamping mechanism 2, ensuring that the clamping mechanism 2 moves only along the first direction Y during the test, reducing or avoiding abnormal movements such as displacement, shaking, or twisting of the clamping mechanism 2, thereby ensuring that only a tensile force is generated between the first workpiece 6 and the second workpiece 7 along the first direction Y, further improving the accuracy of the test results.

[0078] Furthermore, the support member 20 is detachably fixed to the guide member 24. That is, the support member 20 and the guide member 24 are detachably connected to each other, and after the support member 20 and the guide member 24 are connected, they are locked together, so they cannot move relative to each other. On the one hand, the support member 20 can move independently in the operating hole 19 along the second direction X when it is separated from the guide member 24, thereby preventing the guide member 24 from moving along the second direction X with the support member 20. This reduces the space required for the support member 20 to move and allows the guide member 24 to move only along the first direction Y, achieving reliable limiting and guiding. On the other hand, the mutual locking of the support member 20 and the guide member 24 after connection, preventing relative movement, increases the stability of the support member 20 and ensures that the support member 20 moves along the first direction Y with the guide member 24.

[0079] Furthermore, when the support member 20 and the guide member 24 are separated, the support member 20 can move in the second direction X within the operating hole 19 to extend between the first workpiece 6 and the second workpiece 7. After the support member 20 is installed in place, the guide member 24 is inserted into the test cavity 191 and connected and fixed to the support member 20, so that the support member 20 moves along the first direction Y with the guide member 24. That is, in the state where the support member 20 and the guide member 24 are separated, the support member 20 is first inserted into the operating hole 19 until the support member 20 is installed in place, and then the guide member 24 is inserted into the test cavity 191 and connected and fixed to the support member 20. On the one hand, the support member 20 is installed first, allowing it to move independently within the operating hole 19. This reduces the space occupied and avoids unnecessary obstruction of vision, ensuring that the support member 20 can be accurately and efficiently aligned between the first workpiece 6 and the second workpiece 7. On the other hand, the guide member 24 and the test cavity 191, as well as the guide member 24 and the support member 20, form a consistent insertion fit, allowing the guide member 24 to achieve the fit between the components of the clamping mechanism 2 itself and the fit between the clamping mechanism 2 as a whole and the mounting base 1 through a single insertion operation, thereby improving testing efficiency.

[0080] Furthermore, the operating hole 19 includes an inlet cavity 192 and a connecting cavity 193. The inlet cavity 192 is located on one side of the test cavity 191 along the second direction X. The connecting cavity 193 connects the inlet cavity 192 and the test cavity 191. That is, the inlet cavity 192, the connecting cavity 193, and the test cavity 191 are arranged sequentially along the second direction X. The connecting cavity 193 forms a narrow neck structure between the inlet cavity 192 and the test cavity 191. The support member 20 extends into the mounting base 1 from the inlet cavity 192 and moves into the test cavity 191 along the connecting cavity 193. On the one hand, the inlet cavity 192 is away from the test cavity 191, so that the inlet cavity 192 is located outside the area where the second workpiece 7 is located. The support member 20 extends into the connecting base from the inlet cavity 192, which can prevent interference or collision between the support member 20 and the second workpiece 7. On the other hand, the connecting cavity 193 guides the support member 20 along the second direction X, so that the support member 20 can be aligned with the second workpiece 7.

[0081] In one embodiment, at least two second workpieces 7 are connected to the first workpiece 6. The operating hole 19 includes at least two test chambers 191, which are correspondingly arranged with the second workpieces 7, thereby enabling the connection strength of multiple second workpieces 7 to be tested separately. The operating hole 19 includes an inlet cavity 192 and at least two connecting cavities 193, which are correspondingly connected to the test cavities 191, so that each test cavity 191 shares the same inlet cavity 192. The support member 20 extends into the mounting base 1 from the same inlet cavity 192 and sequentially enters the test cavity 191 along the corresponding connecting cavity 193 to complete the connection strength test of the corresponding second workpiece 7. This makes full use of the limited space, increases the size of the inlet cavity 192, and makes the installation operation of the support member 20 more convenient.

[0082] Furthermore, the support member 20 includes a main body 200 and a support portion 202. The main body 200 extends along a first direction Y and inserts into the guide member 24. The support portion 202 is disposed on one side of the main body 200 along a second direction X, and is used to extend between the first workpiece 6 and the second workpiece 7. By providing a longer main body 200, it is convenient for the user to grip the main body 200 from outside the mounting base 1 to install and operate the support member 20. In addition, the support portion 202 protrudes from one side of the main body 200, which can avoid obstructing the view of the support portion 202 when the user grips the main body 200, making it convenient for the user to observe and judge whether the support portion 202 is accurately inserted between the first workpiece 6 and the second workpiece 7.

[0083] Furthermore, the clamping mechanism 2 also includes fasteners 26 (e.g., bolts or pins), which protrude from the operating hole 19 and connect the guide member 24 to the main body 200. In other words, after the support member 20 and the guide member 24 are both installed in place, the guide member 24 and the main body 200 are connected externally through the operating hole 19 using fasteners 26, ensuring convenient operation and reliable connection.

[0084] Furthermore, the clamping member 22 is movably connected to the guide member 24, that is, the clamping member 22 is connected to the guide member 24 and can move along the first direction Y on the guide member 24 to abut against the side of the second workpiece 7 opposite to the first workpiece 6. The guide member 24 provides positioning and guiding for the clamping member 22, improving the positional accuracy between the clamping member 22 and the second workpiece 7, thereby ensuring a reliable clamping effect.

[0085] Furthermore, the clamping member 22 passes through the guide member 24 and is threadedly engaged with the guide member 24. Through the threaded engagement, the rotational motion of the clamping member 22 is converted into the movement of the clamping member 22 along the first direction Y, so that the clamping member 22 can move continuously and smoothly along the first direction Y, preventing impact between the clamping member 22 and the second workpiece 7.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A connection strength testing device, characterized in that, The connection strength testing device, used for testing the connection strength between a first workpiece and a second workpiece, includes: The mounting base has an internal receiving space for fixing a first workpiece, and the mounting base has an operating hole on one side along a first direction, the operating hole communicating with the receiving space. A clamping mechanism, a portion of which extends through the operating hole into the receiving space, is movable in a first direction to pull the second workpiece away from the first workpiece; The clamping mechanism includes a support member and a clamping member, and a clamping space is formed between the support member and the clamping member. The support member moves in the second direction within the operating hole to extend between the first workpiece and the second workpiece, and the clamping member abuts against the side of the second workpiece away from the first workpiece in the first direction within the operating hole.

2. The connection strength testing device according to claim 1, characterized in that, The operating hole includes a test cavity, which extends along a first direction; The clamping mechanism further includes a guide member, which passes through the test cavity and is slidable along the test cavity. At least one section of the cross-section of the guide member and the test cavity is a non-circular shape that is mutually adapted to each other. The support member is detachably fixed to the guide member, and the clamping member is movably connected to the guide member.

3. The connection strength testing device according to claim 2, characterized in that, When the support member and the guide member are separated, the support member can move in the second direction within the operating hole to extend between the first workpiece and the second workpiece; After the support is installed in place, the guide is inserted into the test cavity and connected and fixed to the support, so that the support moves along the first direction with the guide.

4. The connection strength testing device according to claim 3, characterized in that, The operating port includes an inlet cavity and a connecting cavity. The inlet cavity is located on one side of the test cavity along the second direction, and the connecting cavity connects the inlet cavity and the test cavity. The support extends from the inlet cavity into the mounting base and moves along the connecting cavity into the test cavity.

5. The connection strength testing device according to claim 2, characterized in that, The support component includes: The main body extends along a first direction and is inserted into the guide member; A support portion is disposed on one side of the main body portion along the second direction, and the support portion is used to extend between the first workpiece and the second workpiece.

6. The connection strength testing device according to claim 5, characterized in that, The clamping mechanism further includes a fastener, which is exposed outside the operating hole and connects the guide to the main body.

7. The connection strength testing device according to claim 2, characterized in that, The clamping member passes through the guide member and is threadedly engaged with the guide member.

8. The connection strength testing device according to any one of claims 1-7, characterized in that, The second workpiece has a connecting hole in the center, and the clamping member has a tapered head at one end facing the clamping space; A portion of the conical head extends into the connecting hole, and the outer wall of the conical head abuts against the wall of the connecting hole.

9. The connection strength testing device according to any one of claims 1-7, characterized in that, The clamping member is provided with a traction head at one end away from the clamping space, and the connection strength testing device further includes a pull rod with two opposing traction claws. The traction claw extends between the traction head and the mounting base, the clamping member is clamped between the two traction claws, and the traction head overlaps the traction claw.

10. The connection strength testing device according to any one of claims 1-7, characterized in that, The connection strength testing device also includes a base, on which a position adjustment mechanism is provided, and the mounting base is connected to the position adjustment mechanism.

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