A device for detecting the opening force of a buckle

Abstract

This invention relates to the field of testing equipment technology and discloses a device for testing the opening force of buckles. The device includes a worktable with a central connecting plate above it. One end of the central connecting plate is equipped with a Z-axis connecting rod that can rotate around the Z-axis. One end of the Z-axis connecting rod is equipped with a Y-axis connecting rod that can rotate around the Y-axis, and one end of the Y-axis connecting rod is connected to a linear module. The linear module includes an output slider that can move along its axial direction. A pressure sensor is mounted on the output slider, and one end of the pressure sensor is connected to a pressure head. A sensor for detecting the opening and closing state of the buckle is also mounted on the worktable. This device has a simple structure and can be used to test different products using a single fixture and clamping mechanism. It has a wide range of applications, reduces equipment footprint, saves costs, and is compatible with new buckle products for testing their opening force.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and specifically to a testing device suitable for detecting buckle opening force. Background Technology

[0002] Child car seats provide children with ample adjustment space while offering unbreakable protection. They eliminate any potential errors that might occur when a child is being held in a car, and also prevent accidents such as children fidgeting and moving around when traveling alone. The buckles are often connected to corresponding webbing, and according to the "Motor Vehicle Child Restraint Systems" regulations, the buckles of child car seats must undergo buckle opening force testing. However, existing testing equipment performs no-load and load testing separately, resulting in a long testing cycle and significantly impacting testing efficiency.

[0003] To address the aforementioned shortcomings, patent CN106441833X proposes a buckle opening force testing machine that enables both no-load and load opening force tests to be completed using a single cylinder, thus improving testing efficiency. However, with the development of buckle technology, existing buckle products have adopted various structures such as press-type, push-pull-type, and side-push-type. The aforementioned patent requires different testing modules to be replaced when testing different buckle products, which not only leads to high testing costs for buckle opening force but also results in incompatibility of the testing equipment after product updates. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide a detection device for buckle opening force. By using different modules, the detection fixture can be rotated and flipped to test buckles that open at different angles and in different directions, thereby expanding the applicability of the detection device and reducing the detection cost.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A device for detecting the opening force of a buckle includes a worktable. A clamping mechanism for fixing buckle products is mounted on the worktable. A profile frame movable along the X-axis is mounted on the outer side of the clamping mechanism. A second fixing fixture corresponding to the number and position of the webbing in the buckle product is mounted on the profile frame. A first fixing fixture is mounted on the open side of the profile frame, and the other side is connected to a load mechanism located below the worktable. A central connecting plate is mounted above the worktable. A Z-axis connecting rod rotatable around the Z-axis is mounted at one end of the central connecting plate. A Y-axis connecting rod rotatable around the Y-axis is mounted at one end of the Z-axis connecting rod, and a linear module is connected to one end of the Y-axis connecting rod. The linear module includes an output slider movable along its axial direction. A pressure sensor is mounted on the output slider, and one end of the pressure sensor is connected to a pressure head that can contact the buckle product. A sensor for detecting the opening and closing state of the buckle product is also mounted on the worktable.

[0007] In a preferred embodiment of the present invention, the load mechanism includes a weight, which is movably disposed on a partition below the workbench. A telescopic component is provided below the weight, and the upper end of the weight is connected to the profile frame.

[0008] In a preferred embodiment of the present invention, the linear module further includes a linear frame connected to the Y-axis connecting rod, a motor is mounted on the top of the linear frame, and the output end of the motor is connected to a linear lead screw via a coupling, the linear lead screw being screwed through the output slider.

[0009] In a preferred embodiment of the present invention, a central frame is further included, wherein one end of the central plate opposite to the Z-axis connecting rod is located within the central frame; a Z-axis screw that can rotate around the Z-axis is installed within the central frame, the Z-axis screw is screwed onto the central plate, and the central frame can move along the X-axis and Y-axis directions.

[0010] In a preferred embodiment of the present invention, the device further includes a frame supporting the worktable. Two optical axis guide rails parallel to the Y-axis are arranged opposite each other on the top of the frame, and a slide block is slidably sleeved on each optical axis guide rail. The two slide blocks are connected by a linear guide rail parallel to the X-axis direction, and the central frame is slidably mounted on the linear guide rail. An X-axis screw parallel to the X-axis is rotatably mounted above the linear guide rail, and the X-axis screw is screwed through the back of the central frame.

[0011] In a preferred embodiment of the present invention, the clamping mechanism includes a support plate located in the lifting hole of the worktable, a fixed platform that can move along the X-axis is provided above the support plate, and opposing fixed blocks are provided on both sides of the fixed platform. A fixed handle for fixing the buckle product is screwed through the fixed block.

[0012] In a preferred embodiment of the present invention, two guide rods parallel to the X-axis are arranged opposite each other on the support plate, and the guide rods pass through the fixed platform; a lead screw parallel to the guide rod is rotatably installed on one side of the guide rod, and an L-shaped slider is screwed onto the lead screw, the L-shaped slider is fixedly installed on one side of the fixed platform; and a lifting assembly for adjusting the height of the clamping mechanism is provided at the bottom of the support plate.

[0013] In a preferred embodiment of the present invention, the first fixing fixture includes a base plate, a pressure plate, and a top plate. The base plate is fixedly installed on the workbench and is fixedly connected to the top plate by a support rod. The pressure plate is located between the base plate and the top plate and is slidably sleeved on the support rod. A knob is screwed onto the top plate and one end of the knob is connected to the pressure plate.

[0014] In a preferred embodiment of the present invention, the second fixing fixture includes a pad fixedly installed on the profile frame, two upright plates are arranged opposite each other on the pad, a rotating fixing cylinder is eccentrically installed between the two upright plates, and a lever is fixedly connected to the circumferential surface of the fixing cylinder. Beneficial effects

[0015] (1) In this invention, the pressure head is driven by a linear module to contact the buckle product, and the opening force data of the buckle product is measured by a pressure sensor; at the same time, the position of the linear module can be changed by the Z-axis linkage and the Y-axis linkage acting alone or together, so that it can drive the pressure head to test different buckle products; the device has a simple structure and is easy to operate. Different products can be tested with a set of fixtures and clamping mechanisms. It has a wide range of applications, can reduce the equipment footprint, save costs, and can also be compatible with new buckle products in the future to test their opening force.

[0016] (2) In this invention, the webbing of the buckle product can be fixed by the first fixing fixture and multiple second fixing fixtures, and the state of the buckle product during use can be simulated, thereby improving the accuracy of the data obtained by the device in the opening force detection, so that it can better match the data in the actual use state.

[0017] (3) In this invention, the profile frame can slide along the X-axis direction, and one side of it is connected to the weight of the load mechanism. When the weight is in a suspended state, the weight of the weight is applied to the product through the profile frame, and the opening force of the product under load can be measured. When the weight is supported by the telescopic component, the profile frame is not subject to load force, and the opening force of the product under no-load state can be measured. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the clamping mechanism according to a preferred embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the linear module according to a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the first fixing fixture in a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the load mechanism in a preferred embodiment of the present invention;

[0023] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0024] Figure 7 This is a schematic diagram of the Y and Z axis connecting rods in a preferred embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of the Y and Z axis connecting rods in a preferred embodiment of the present invention;

[0026] The components include: 1. Frame; 101. Worktable; 102. Optical axis guide rail; 103. Slide; 104. Linear guide rail; 105. X-axis screw; 2. Clamping mechanism; 21. Support plate; 22. Fixed table; 23. L-shaped slider; 24. Lead screw; 25. Guide rod; 26. Fixing block; 27. Fixing handle; 3. Central frame; 31. Central plate; 32. Z-axis screw; 33. Z-axis connecting rod; 34. Y-axis connecting rod; 35. Tensioning block; 36. Deep groove ball bearing; 4. Linear module; 41. Linear frame; 42. Motor; 43. Linear lead screw; 44. Output slider; 5. Pressure sensor; 6. Pressure head; 7. First fixing fixture; 71. Base plate; 72. Pressure plate; 73. Support rod; 74. Top plate; 75. Knob; 8. Second fixing fixture; 81. Pad plate; 82. Vertical plate; 83. Fixing cylinder; 84. Lever; 9. Sensor; 10. Profile frame; 11. Fixed pulley; 12. Weight; 13. Telescopic assembly; 14. Positioning cursor; 15. Lifting assembly. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention and therefore only show the components relevant to the present invention.

[0028] like Figure 1As shown, a device for detecting the opening force of a buckle includes a worktable 101 fixedly installed inside a frame 1. The worktable 101 is provided with a clamping mechanism 2, a profile frame 10, and a first fixing fixture 7. A linear module 4 connected to the frame 1 is provided above the worktable 101. A pressure sensor 5 is installed on the output slider 44 of the linear module 4. One end of the pressure sensor 5 is connected to a pressure head 6. A sensor 9 for detecting the opening and closing state of the buckle product is also provided on the worktable 101. A positioning cursor 14 is also installed on the frame 1.

[0029] Specifically, the buckle product is fixed on the workbench 101 by the clamping mechanism 2, and the webbing connected to its rear end is fixed to the workbench 101 by the first fixing fixture 7. The other corresponding webbing is fixed to the profile frame 10 by the second fixing fixture 8 to simulate the restraint state of the product in actual use and improve the persuasiveness of the data measured by the device. Then, the linear module 4 drives the pressure head 6 to abut against the button of the buckle product and continuously apply pressure. This pressure is measured by the pressure sensor 5 until the sensor 9 recognizes and detects that the buckle product is open. The pressure data of the pressure sensor 5 at this time is recorded as the opening force of the buckle.

[0030] Among them, sensor 9 is preferably a photoelectric sensor, which consists of three parts: a light source, an optical path, and a photoelectric element. The principle is to first convert the change of the measured quantity into a change of light signal, and then use the photoelectric element to further convert the light signal into an electrical signal. In short, the photoelectric sensor achieves control by converting the change of light intensity into a change of electrical signal. Here, it is used to detect the opening and closing of the buckle. Sensor 9 is mounted on the worktable 101 through a magnetic base, and can be moved to the vicinity of the product through the cantilever of the magnetic base. The positioning cursor 14 is an existing component that can emit a cross-shaped laser. During assembly, the positioning cursor 14 is adjusted so that its cross-shaped cursor coincides with the center of the clamping mechanism 2. The tester only needs to place the product in the center of the cross-shaped cursor to complete accurate positioning.

[0031] like Figure 1-2 As shown, the clamping mechanism 2 includes a support plate 21, a fixed platform 22 above the support plate 21, and opposing fixed blocks 26 on both sides of the fixed platform 22. Each fixed block 26 has a screw-on fixing handle 27 for securing the buckle product. Specifically, the buckle product is placed on the top surface of the fixed platform 22, and the fixed blocks 26 are symmetrically distributed longitudinally on both sides of the fixed platform 22. Each fixed block 26 has at least two fixing handles 27. When securing the buckle product, rotating the fixing handle 27 causes one end to move and abut against the side or inclined top surface of the buckle due to the screw thread, thereby confining the buckle on the fixed platform 22 for subsequent testing.

[0032] To facilitate the adjustment of the clamping mechanism 2 in the X-axis direction, two guide rods 25 parallel to the X-axis can be arranged opposite each other on the support plate 21. The guide rods 25 pass through the fixed platform 22 to provide guidance and limiting. A lead screw 24 parallel to the guide rod 25 is rotatably mounted on one side of the guide rod 25. The lead screw 24 is rotatably mounted on the support plate 21. An L-shaped slider 23 is screwed onto the lead screw 24 and fixedly mounted on one side of the fixed platform 22. A handle can also be fixedly connected to one end of the lead screw 24. Rotating the handle can drive the L-shaped slider 23 to move along the X-axis direction, thereby driving the fixed platform 22 to make adaptive adjustments along the guide rods 25 in the X-axis direction.

[0033] To ensure that the webbing of the buckle product is parallel to the upper surface of the profile frame 10 during testing, a lifting assembly 15 can be installed at the bottom of the support plate 21. The lifting assembly 15 is fixedly installed below the workbench 101. At this time, a lifting hole is opened on the workbench 101, and the support plate 21 is located in the lifting hole. That is, the clamping mechanism 2, supported by the lifting assembly 15, can be movably inserted into the workbench 101 through the lifting hole. The lifting assembly 15 can preferably be a scissor lift as used in the prior art, which is used to adjust the height of the clamping mechanism 2 so that the designated part of the buckle product on it can be horizontally set above the profile frame 10.

[0034] like Figure 1 , Figure 4 As shown, the first fixing fixture 7 includes a base plate 71, a pressure plate 72, and a top plate 74. The base plate 71 is fixedly installed on the workbench 101 and is fixedly connected to the top plate 74 by a support rod 73. The pressure plate 72 is located between the base plate 71 and the top plate 74 and is slidably sleeved on the support rod 73. A knob 75 is screwed onto the top plate 74, and one end of the knob 75 is connected to the pressure plate 72. Specifically, one end of the knob 75 screws through the top plate 74, and its end is rotatably connected to the pressure plate 72. Therefore, as the knob 75 rotates, the pressure plate 72 can be driven to move back and forth along the axis of the support rod 73. The function of the support rod 73 is to connect the top plate 74 and the bottom plate 71, and to limit the degree of freedom of the pressure plate 72, so that it can only move up and down in the vertical direction. When fixing the webbing at the rear end of the product, the webbing is first passed through the gap between the pressure plate 72 and the bottom plate 71, and the knob 75 is turned to drive the pressure plate 72 to firmly fix the webbing on the bottom plate 71. The bottom plate 71 is also fixedly installed on the workbench 101 by a pad to ensure that the fixed webbing can remain horizontal.

[0035] like Figure 5-6As shown, the second fixing fixture 8 includes a pad 81 fixedly mounted on the profile frame 10. Two upright plates 82 are arranged opposite each other on the pad 81. A rotating fixing cylinder 83 is eccentrically mounted between the two upright plates 82, and a lever 84 is fixedly connected to the circumferential surface of the fixing cylinder 83. When fixing the corresponding webbing with the second fixing fixture 8, the webbing is first passed through the gap between the fixing cylinder 83 and the pad 81, and then the fixing cylinder 83 is driven to rotate by the lever 84. Based on the eccentric mounting of the fixing cylinder 83 between the upright plates 82, one side of the fixing cylinder 83 can abut against the pad 81, and the corresponding webbing is firmly clamped.

[0036] Furthermore, in order to improve the stability of the second fixing fixture 8 in fixing the webbing, a toothed groove parallel to the axis of the fixing cylinder 83 can be opened on the circumferential surface of the fixing cylinder 83, and a corresponding toothed groove can be opened on the pad 81 to increase the friction between the contact surfaces and avoid accidental loosening.

[0037] like Figure 1 , Figure 5 As shown, the profile frame 10 has a U-shaped structure, the first fixing fixture 7 is set on its open side, the profile frame 10 surrounds the outside of the clamping mechanism 2, and the profile frame 10 can slide along the X-axis on the worktable 101; specifically, two parallel sliding grooves are symmetrically opened on the worktable 101, a sliding rod is installed in the sliding groove, a linear bearing is sleeved on the sliding rod, and the linear bearing is fixedly connected to the bottom of the profile frame 10.

[0038] The side of the profile frame 10 opposite to its opening is fixedly connected to the load mechanism by a separate webbing. This webbing can also be fixed on the profile frame 10 using the first fixing fixture 7. The base plate 71 can be fixedly installed on the profile frame 10, and the fixing method is the same as described above.

[0039] The load mechanism described above includes a weight 12, which is movably mounted on a partition below the workbench 101. Its upper end is connected to the profile frame 10 via a webbing, and a telescopic component 13 is provided below it. Specifically, to meet the load detection requirements, the load of the weight 12 can be set to 200N, and the telescopic component 13 can be a cylinder. When the device performs load detection, the profile frame 10 and the weight 12 are connected by the webbing, and the output end of the cylinder retracts, so that the weight 12 is in a suspended state. Then, its load force is transmitted to the buckle through the webbing and the sliding profile frame 10 for load detection. When the device performs no-load detection, the output end of the cylinder extends to support the weight 12, so that the profile frame 10 is not under load, thereby achieving the purpose of no-load detection of the buckle.

[0040] Furthermore, a rotatable fixed pulley 11 is also installed on the workbench 101. A through hole is opened on one side of the fixed pulley 11. One end of the webbing is connected to the profile frame 10, and the other end passes around the upper end of the fixed pulley 11 and passes through the through hole to be fixed to the weight 12. Through this structure, the friction and wear between the webbing and the workbench 101 can be reduced.

[0041] like Figure 1 , Figure 3 , Figure 5 As shown, two optical axis guide rails 102 parallel to the Y-axis are arranged opposite each other on the top of the frame 1. Each optical axis guide rail 102 is slidably fitted with a slide block 103, and the slide blocks 103 on the two optical axis guide rails 102 are connected by a linear guide rail 104 parallel to the X-axis direction. A central frame 3 is slidably installed on the linear guide rail 104. A central plate 31 and a Z-axis screw 32 that can rotate around the Z-axis are installed inside the central frame 3. The Z-axis screw 32 is screwed through the central plate 31. Guide rods are provided on both sides of the Z-axis screw 32. The guide rods are also through the central plate 31 to limit the degree of freedom of the central plate 31 so that it can only move along the Z-axis direction.

[0042] In summary, the position of the connecting plate 31 inside the frame 1 can be adjusted along the X, Y, and Z axes. In order to facilitate the movement of the connecting frame 3 along the X axis, an X-axis screw 105 parallel to the X axis can be rotatably installed above the linear guide rail 104, so that the X-axis screw 105 is screwed through the back of the connecting frame 3. Based on the transmission principle of screw engagement, the X-axis screw 105 installed on the slide 103 can drive the connecting frame 3 to move.

[0043] As described above, the connecting plate 31 has a U-shaped structure, with one protruding end extending to the outside of the connecting frame 3 and equipped with a Z-axis connecting rod 33 that can rotate around the Z-axis. The end of the Z-axis connecting rod 33 is equipped with a Y-axis connecting rod 34 that can rotate around the Y-axis, and one end of the Y-axis connecting rod 34 is connected to a tensioning block 35, which tensions the Y-axis connecting rod 34 and the Z-axis connecting rod 33. The tensioning block 35 is connected to the linear module 4. Specifically, under the action of the Z-axis connecting rod 33 and the Y-axis connecting rod 34, the linear module 4 can rotate around the Z-axis and Y-axis to a designated position to meet the requirements for testing the opening force of different buckle products.

[0044] like Figure 7-8 As shown, the Y-axis connecting rod 34 has a positioning slot and a locking hole. When rotating, the screw in the locking hole can be removed, so that the Y-axis connecting rod 34 can rotate in the positioning slot. The positioning slot is 90°, so it is only necessary to rotate the linear module 4 to the end in one direction to rotate 90°. The Y-axis connecting rod 34 passes through the Z-axis connecting rod 33, and the two are connected by a deep groove ball bearing 36.

[0045] Furthermore, the linear module 4 includes a linear frame 41 connected to the Y-axis connecting rod 34. A motor 42 is mounted on the top of the linear frame 41. The output end of the motor 42 is connected to a linear lead screw 43 via a coupling. An output slider 44 is screwed onto the linear lead screw 43. A pressure sensor 5 is provided on one side of the output slider 44. One end of the pressure sensor 5 is connected to a pressure head 6.

[0046] Specifically, the motor 42 drives the linear screw 43 to rotate through the coupling, thereby causing the output slider 44 to move along the axis of the linear screw 43, which in turn causes the pressure head 6 to contact the buckle button, and the pressure sensor 5 measures the specific opening force data.

[0047] In addition, to facilitate the rotation of the X-axis screw 105 and the Z-axis screw 32, corresponding handwheels can be installed at their ends, or they can be driven by servo motors; moreover, the X-axis direction in the text is the direction of sliding of the profile frame 10, the Y-axis direction is the direction perpendicular to the X-axis in the horizontal plane, and the Z-axis direction is the direction perpendicular to both the X-axis and the Y-axis.

[0048] To ensure more accurate data under high-speed testing, a buffer spring can be installed inside the pressure head 6. Based on the characteristics of the spring, under the same movement speed, the deformation at the end of the pressure head 6 will be different depending on whether there is a spring inside or not.

[0049] Working principle:

[0050] With the assistance of the positioning cursor 14, the buckle product is placed on the fixed platform 22, the plum blossom fixing handle 27 is rotated to fix the product, and the lifting component 15 is adjusted to make the designated part of the product, namely the upper part of the corresponding webbing and profile frame 10, horizontal.

[0051] (1) Test product one: When the test product is a push-button buckle, pass one end of the webbing through the product and fix the other end in the first fixing fixture 7 and the second fixing fixture 8 to simulate the actual use state; take another webbing to connect the profile frame 10 and the 200N weight 12, retract the output end of the telescopic component 13, so that the weight 12 is in a suspended state; the position of the linear module 4 in the frame 1, move the pressure head 6 above the product button, move the sensor 9 to the vicinity of the product through the cantilever of its magnetic base, observe whether the operation panel next to the frame 1 senses the product, and start the test after preparation; during the test, the motor 42 drives the output slider 44 to move through the coupling, and drives the pressure head 6 to press the button of the product through the pressure sensor 5. When the sensor 9 senses the product unfastening, record the value of the pressure sensor 5 at this time, which is the value of the buckle opening force.

[0052] (2) Test product two: When the test product is a push-pull buckle, rotate the Y-axis connecting rod 34 to rotate the linear module 4 90 degrees around the Y-axis to make it horizontal. Then replace the pressure head 6 and repeat the above steps.

[0053] (3) Test product three; When the test product is a side push buckle, rotate the Z-axis connecting rod 33 on the basis of method (2) and rotate the linear module 4 around the Z-axis by 90 degrees so that it is placed horizontally. There is no need to replace the test pressure head 6. Repeat the above steps again.

[0054] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for detecting the opening force of a buckle, characterized in that: The utility model provides a kind of buckle production testing device, including workbench (101), middle joint frame (3) and the rack (1) of supporting the workbench (101), the workbench (101) is provided with clamping mechanism (2) for fixing buckle product, the outside of the clamping mechanism (2) is provided with profile frame (10) capable of moving along X axis direction, the profile frame (10) is provided with the second fixed jig (8) corresponding with the number and position of the webbing of the buckle product, and the opening side of the profile frame (10) is provided with first fixed jig (7), the other side is connected with load mechanism arranged below the workbench (101). The top of the workbench (101) is provided with a middle joint plate (31), one end of the middle joint plate (31) is installed with a Z-axis connecting rod (33) capable of rotating around the Z-axis, one end of the Z-axis connecting rod (33) is installed with a Y-axis connecting rod (34) capable of rotating around the Y-axis, and one end of the Y-axis connecting rod (34) is connected with a linear module (4). The linear module (4) includes an output slider (44) capable of moving along its axis direction and a linear frame (41) connected with the Y-axis connecting rod (34), the output slider (44) is provided with a pressure sensor (5), and one end of the pressure sensor (5) is connected with a pressure head (6) capable of contacting the buckle product; the workbench (101) is further provided with an inductor (9) for detecting the opening and closing state of the buckle product. The top of the linear frame (41) is installed with a motor (42), the output end of the motor (42) is connected with a linear lead screw (43) through a shaft coupling, and the linear lead screw (43) is screwed through the output slider (44). The load mechanism includes a weight (12), the weight (12) is movably arranged on a partition plate below the workbench (101), a telescopic assembly (13) is arranged below the weight (12), and the upper end of the weight (12) is connected with the profile frame (10). The end of the middle joint plate (31) opposite to the Z-axis connecting rod (33) is located in the middle joint frame (3); the middle joint frame (3) is installed with a Z-axis screw rod (32) capable of rotating around the Z-axis, the Z-axis screw rod (32) is screwed through the middle joint plate (31), and the middle joint frame (3) can move along the X-axis and Y-axis directions. The top of the rack (1) is oppositely provided with two optical axis guide rails (102) parallel to the Y-axis, each of the optical axis guide rails (102) is slidably sleeved with a sliding seat (103), the two sliding seats (103) are connected through a linear guide rail (104) parallel to the X-axis direction, the middle joint frame (3) is slidably installed on the linear guide rail (104), an X-axis screw rod (105) parallel to the X-axis is rotatably installed above the linear guide rail (104), and the X-axis screw rod (105) is screwed through the back of the middle joint frame (3).

2. The device for detecting the opening force of a buckle according to claim 1, characterized in that: The clamping mechanism (2) comprises a support plate (21) located in the lifting hole of the workbench (101), a fixed table (22) capable of moving along the X-axis direction is arranged above the support plate (21), opposite fixed blocks (26) are arranged on both sides of the fixed table (22), and a fixing handle (27) for fixing the buckle product is threaded on the fixed blocks (26).

3. The device for detecting the opening force of a buckle according to claim 2, characterized in that: Two guide rods (25) parallel to the X-axis are oppositely arranged on the support plate (21), and the guide rods (25) are threaded on the fixed table (22); A lead screw (24) parallel to the guide rod (25) is rotatably installed on one side of the guide rod (25), an L-shaped sliding block (23) is threaded on the lead screw (24), the L-shaped sliding block (23) is fixedly installed on one side of the fixed table (22), and a lifting assembly (15) for adjusting the height of the clamping mechanism (2) is arranged at the bottom of the support plate (21).

4. The buckle force detection device of claim 1, wherein: The first fixing jig (7) comprises a bottom plate (71), a pressing plate (72) and a top plate (74), the bottom plate (71) is fixedly installed on the workbench (101), and is fixedly connected with the top plate (74) through a support rod (73); The pressing plate (72) is located between the bottom plate (71) and the top plate (74) and is slidably sleeved on the support rod (73), a knob (75) is threaded on the top plate (74), and one end of the knob (75) is connected with the pressing plate (72).

5. The buckle force detection device of claim 1, wherein: The second fixing jig (8) comprises a base plate (81) fixedly installed on the profile frame (10), two vertical plates (82) are oppositely arranged on the base plate (81), a rotating fixing cylinder (83) is eccentrically installed between the two vertical plates (82), and a push rod (84) is fixedly connected to the circumferential surface of the fixing cylinder (83).

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