Push-pull force detection device

Abstract

The utility model discloses a push-pull force detection device, which comprises a push-pull force meter and a test platform connected with the push-pull force meter, and is characterized in that the test platform comprises a base, a push-pull force sensor and a detection device, the transmission mechanism comprises a transmission lead screw and a transmission sliding block arranged on the transmission lead screw in a sleeving mode, and the transmission sliding block conducts linear reciprocating motion in the axial direction of the transmission lead screw. The driving mechanism is connected with the transmission screw rod and drives the transmission screw rod to rotate; the clamping mechanism is used for clamping a to-be-tested product and comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is connected with the transmission sliding block, and the second clamping assembly is connected with the pull and push dynamometer; the first clamping assembly and the second clamping assembly are oppositely arranged in the axial direction of the transmission lead screw. And the height adjusting mechanism is connected with the pull and push dynamometer to drive the pull and push dynamometer to move along the vertical direction. Through the arrangement of the height adjusting mechanism, the height of the pull and push dynamometer is adjusted, so that the height of the second clamping assembly is adjustable, the levelness of a product to be measured is kept, and the accuracy of drawing force measurement is improved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically to a push-pull force detection device. Background Technology

[0002] Push-pull force testing is an important method for evaluating the mechanical properties of products or materials. Generally, push-pull force testing uses a push-pull force gauge in conjunction with a testing platform that fixes the product or material to complete a series of tests, including automatically tensile or compressing the product under test and automatically collecting test data.

[0003] The existing push-pull force testing platform has the following problems: First, the height of the clamping component used to hold the product or material is not easy to adjust; second, the clamping force of the clamping component is poor; third, the stability of the clamping component during the tensile motion is poor. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a push-pull force detection device with adjustable clamping height, wide clamping range and strong stability.

[0005] To achieve the above-mentioned technical effects, the technical solution of this utility model is as follows: a push-pull force detection device, comprising a push-pull force gauge and a test platform connected to the push-pull force gauge, wherein the test platform includes:

[0006] Base;

[0007] The transmission mechanism includes a transmission screw and a transmission slider sleeved on the transmission screw. The transmission screw is fixed above the base by two opposing support plates, and the transmission slider performs linear reciprocating motion along the axial direction of the transmission screw.

[0008] A drive mechanism is connected to the lead screw and drives the lead screw to rotate.

[0009] A clamping mechanism for clamping a product to be tested includes a first clamping component and a second clamping component. The first clamping component is connected to the transmission slider, and the second clamping component is connected to the push-pull force gauge and disposed on the base. The first clamping component and the second clamping component are disposed opposite to each other along the axial direction of the transmission lead screw.

[0010] A height adjustment mechanism is provided on the base and connected to the push-pull force gauge to drive the push-pull force gauge to move in the vertical direction.

[0011] A preferred technical solution is that the height adjustment mechanism includes a gear, a rack meshing with the gear, and a guide post slidably connected to the rack; the gear is rotatably connected to the support plate via a connecting rod, and the rack reciprocates in the vertical direction due to the rotation of the gear; the guide post is fixedly connected to the base, and the rack is fixedly connected to the push-pull force gauge and moves along the guide post to adjust the height of the push-pull force gauge.

[0012] A preferred technical solution is that the first clamping assembly includes a C-shaped fixed base, the top wall and bottom wall of the fixed base are arranged opposite to each other, a pressure block is provided between the top wall and the bottom wall, and the fixed base and the pressure block are connected by a rotating rod; the pressure block is threadedly connected to the rotating rod and reciprocates between the top wall and the bottom wall along the rotating rod.

[0013] A preferred technical solution is that the product to be tested is sandwiched between the lower surface of the pressing block and the upper surface of the bottom wall, and both the lower surface of the pressing block and the upper surface of the bottom wall are provided with straight teeth, and the straight teeth on the lower surface of the pressing block and the straight teeth on the upper surface of the bottom wall are in concave-convex fit.

[0014] A preferred technical solution is that the second clamping assembly includes a clamping member and a locking member. The clamping member in the vertical direction includes two separable parts: an upper clamping part and a lower clamping part. The clamping member is fixedly connected to the push-pull force gauge, and the locking member connects and locks the upper clamping part and the lower clamping part.

[0015] A preferred technical solution is that the locking member includes a screw and a nut sleeved on the screw, the screw passes through the upper clamping part and connects to the lower clamping part, and the nut cooperates with the screw to lock the upper clamping part and the lower clamping part.

[0016] A preferred technical solution is that the second clamping assembly further includes a first elastic element sleeved on the screw; the first elastic element is disposed between the upper clamping part and the lower clamping part in the vertical direction, and the two ends of the first elastic element are fixedly connected to the upper clamping part and the lower clamping part respectively.

[0017] A preferred technical solution is that multiple guide rods are further provided between the two support plates, and the axis of the guide rods is parallel to the axis of the transmission screw; the transmission slider is sleeved on the guide rods and moves along the guide rods.

[0018] A preferred technical solution is that a positioning rod is further provided between the two support plates, and the positioning rod passes through the transmission slider; two positioning members are also provided on the positioning rod, and the transmission slider is sandwiched between the two positioning members to lock the relative position of the transmission slider and the transmission lead screw.

[0019] A preferred technical solution is that the two ends of the positioning rod are fitted with second elastic elements; the second elastic elements are disposed between the transmission slider and the support plate and abut against the support plate, so as to provide buffering for the moving transmission slider.

[0020] The advantages and beneficial effects of this utility model are as follows: The height adjustment mechanism allows for adjustment of the height of the push-pull force gauge, thereby enabling the height of the second clamping component to be adjustable, maintaining the level of the product under test, reducing the influence of the stretching direction and the stretching force point on the stretching force measurement, and further improving the accuracy of the stretching force measurement. The clamping mechanism can adapt to clamping products under test of different thicknesses, and has a large clamping force and high clamping stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the push-pull force detection device in the embodiment;

[0022] Figure 2 This is another overall structural schematic diagram of the push-pull force detection device in the embodiment;

[0023] Figure 3 This is a schematic diagram of the height adjustment mechanism and the second clamping assembly in the push-pull force detection device of the embodiment;

[0024] Figure 4 This is a schematic diagram of the structure of the first clamping component in the push-pull force detection device of the embodiment;

[0025] In the diagram: 1. Base; 2. Transmission mechanism; 21. Transmission screw; 22. Transmission slider; 23. Support plate; 3. Drive mechanism; 4. Clamping mechanism; 41. First clamping assembly; 411. Fixed seat; 4111. Top wall; 4112. Bottom wall; 412. Pressure block; 413. Rotating rod; 414. Straight tooth; 42. Second clamping assembly; 421. Clamping element; 4211. Upper clamping part; 4212. Lower clamping part; 421 3. Connecting section; 4214. Locking section; 4215. Clamping section; 422. Locking element; 4221. Screw; 4222. Nut; 423. First elastic element; 5. Height adjustment mechanism; 51. Gear; 52. Rack; 521. Through hole; 53. Guide post; 531. Waist hole; 54. Connecting rod; 55. Fastener; 6. Guide rod; 7. Positioning rod; 71. Positioning element; 72. Second elastic element; 8. Push-pull force gauge. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrally formed connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figure 1-4 As shown in the embodiment, a push-pull force detection device includes a push-pull force gauge 8 and a test platform connected to the push-pull force gauge 8. The test platform includes:

[0030] Base 1;

[0031] The transmission mechanism 2 includes a transmission screw 21 and a transmission slider 22 sleeved on the transmission screw 21. The transmission screw 21 is fixed above the base 1 by two support plates 23 arranged opposite to each other, and the transmission slider 22 is driven to make linear reciprocating motion along the axial direction of the transmission screw 21.

[0032] Drive mechanism 3 is connected to transmission screw 21 and drives transmission screw 21 to rotate;

[0033] The clamping mechanism 4 is used to clamp the product to be tested, including a first clamping component 41 and a second clamping component 42. The first clamping component 41 is connected to the transmission slider 22, and the second clamping component 42 is connected to the push-pull force gauge 8 and is disposed on the base 1. The first clamping component 41 and the second clamping component 42 are arranged opposite to each other along the axial direction of the transmission screw 21.

[0034] The height adjustment mechanism 5 is set on the base 1 and connected to the push-pull force gauge 8 to drive the push-pull force gauge 8 to move in the vertical direction.

[0035] Furthermore, the transmission screw 21 is connected to the support plate 23 via a bearing; in this embodiment, the drive mechanism 3 is a rotary motor, which connects to the transmission screw 21 to make the transmission screw 21 rotate, thereby causing the slider 22 to move linearly on the transmission screw 21.

[0036] The first clamping component 41 and the second clamping component 42 are arranged opposite to each other, clamping the two ends of the product to be tested respectively. The first clamping component 41 is connected to the transmission slider 22 and moves in a straight line synchronously with the transmission slider 22 to achieve the stretching of the product to be tested.

[0037] The height adjustment mechanism 5 adjusts the height of the push-pull force gauge 8, thereby adjusting the height of the second clamping assembly 42 connected to the push-pull force gauge 8. The height of the second clamping assembly 42 is adjustable. When the product to be tested is clamped between the first clamping assembly 41 and the second clamping assembly 42, it is in a horizontal state. The transmission mechanism 2 stretches the product to be tested in the horizontal direction, reducing the influence of the stretching direction and the force application point on the stretching force, and further improving the accuracy of the stretching force measurement.

[0038] In this embodiment, the push-pull force gauge 8 is a digital display push-pull force gauge 8. The axial drive mechanism 3 and the height adjustment mechanism 5 along the transmission lead screw 21 are respectively disposed at both ends of the transmission lead screw 21.

[0039] Furthermore, in this embodiment, the height adjustment mechanism 5 is connected to the push-pull force gauge 8 via a mounting plate, and the push-pull force gauge 8 is fixed to the mounting plate.

[0040] like Figure 1-3 As shown, in another preferred embodiment, the height adjustment mechanism 5 includes a gear 51, a rack 52 meshing with the gear 51, and a guide post 53 slidably connected to the rack 52; the gear 51 is rotatably connected to the support plate 23 via a connecting rod 54, and the rack 52 reciprocates in the vertical direction due to the rotation of the gear 51; the guide post 53 is fixedly connected to the base 1, and the rack 52 is fixedly connected to the push-pull force gauge 8 and moves along the guide post 53 to adjust the height of the push-pull force gauge 8.

[0041] In this embodiment, the connecting rod 54 is fixedly connected to the gear 51 and rotatably connected to the support plate 23; the axis of the connecting rod 54 is collinear with the axis of the gear 51, and the gear 51 rotates synchronously with the connecting rod 54 while the connecting rod 54 rotates.

[0042] Furthermore, at least one gear 51 is provided; when two gears 51 are provided, the two sides of the rack 52 are provided with serrations that mesh with the gears 51 respectively. The rotation of the gears 51 drives the rack 52 to move linearly. The increase in the number of gears 51 increases the driving force of the gears 51 on the rack 52.

[0043] Furthermore, the guide post 53 restricts the movement direction of the rack 52, so that the rack 52 can only move in the vertical direction.

[0044] Furthermore, the guide post 53 is provided in the waist hole 531, and the rack 52 is provided with a through hole 521. The waist hole 531 and the through hole 521 are connected and locked by fasteners 55 to fix the relative position of the guide post 53 and the rack 52.

[0045] like Figure 1-2 and Figure 4 As shown, in another preferred embodiment, the first clamping assembly 41 includes a C-shaped fixed base 411, with the top wall 4111 and the bottom wall 4112 of the fixed base 411 disposed opposite to each other, and a pressure block 412 disposed between the top wall 4111 and the bottom wall 4112. The fixed base 411 and the pressure block 412 are connected by a rotating rod 413. The pressure block 412 is threadedly connected to the rotating rod 413 and reciprocates between the top wall 4111 and the bottom wall 4112 along the rotating rod 413.

[0046] In this embodiment, one end of the rotating rod 413 abuts against the bottom wall 4112, and the other end passes through the pressure block 412 and the top wall 4111 in sequence; the part of the rotating rod 413 located between the top wall 4111 and the bottom wall 4112 is provided with threads and is threadedly rotatably connected to the pressure block 412, so as to realize the linear reciprocating motion of the pressure block 412 between the top wall 4111 and the bottom wall 4112.

[0047] The distance between the pressure block 412 and the bottom wall 4112 is adjustable. The distance can be adjusted by rotating rod 413, so that products of different thicknesses can be clamped.

[0048] The first clamping assembly 41 is fixedly connected to the transmission slider 22, and further, the fixed seat 411 is fixedly connected to the transmission slider 22.

[0049] like Figure 4 As shown, in another preferred embodiment, the product to be tested is sandwiched between the lower surface of the pressure block 412 and the upper surface of the bottom wall 4112. Both the lower surface of the pressure block 412 and the upper surface of the bottom wall 4112 are provided with straight teeth 414, and the straight teeth 414 on the lower surface of the pressure block 412 and the straight teeth 414 on the upper surface of the bottom wall 4112 are in a concave-convex fit.

[0050] The straight teeth 414 are provided, and the straight teeth 414 on both sides are in a concave-convex fit to increase the clamping friction between the pressure block 412 and the bottom wall 4112 on the product to be tested, thereby improving the clamping stability.

[0051] like Figure 1-3 As shown, in another preferred embodiment, the second clamping assembly 42 includes a clamping member 421 and a locking member 422. The clamping member 421 in the vertical direction includes two separable parts: an upper clamping part 4211 and a lower clamping part 4212. The clamping member 421 is fixedly connected to the push-pull force gauge 8, and the locking member 422 connects and locks the upper clamping part 4211 and the lower clamping part 4212.

[0052] The locking member 422 connects the upper clamping part 4211 and the lower clamping part 4212, and adjusts the distance between the upper clamping part 4211 and the lower clamping part 4212 to clamp products of different thicknesses.

[0053] The clamping part 421 is fixedly connected to the push-pull force gauge 8. This connection can be made by either the upper clamping part 4211 or the lower clamping part 4212.

[0054] Furthermore, the horizontal clamping member 421 sequentially includes a connecting section 4213, a locking section 4214, and a clamping section 4215; the upper clamping portion 4211 of the connecting section 4213 and the lower clamping portion 4212 are in a concave-convex fit, the upper clamping portion 4211 of the locking section 4214 and the lower clamping portion 4212 are connected by a locking member 422, and the product to be tested is clamped between the upper clamping portion 4211 and the lower clamping portion 4212 of the clamping section 4215.

[0055] The connecting section 4213 is provided with an upper clamping part 4211 and a lower clamping part 4212 in a concave-convex fit to initially position the upper clamping part 4211 and the lower clamping part 4212; the locking member 422 is provided to finally position and lock the upper clamping part 4211 and the lower clamping part 4212.

[0056] like Figure 3 As shown, in another preferred embodiment, the locking member 422 includes a screw 4221 and a nut 4222 sleeved on the screw 4221. The screw 4221 passes through the upper clamping part 4211 and connects with the lower clamping part 4212. The nut 4222 cooperates with the screw 4221 to lock the upper clamping part 4211 and the lower clamping part 4212.

[0057] Nut 4222 and screw 4221 are connected to finally fix and lock the upper clamping part 4211 and the lower clamping part 4212.

[0058] like Figure 3 As shown, in another preferred embodiment, the second clamping assembly 42 further includes a first elastic member 423 sleeved on the screw 4221; the first elastic member 423 is disposed between the upper clamping part 4211 and the lower clamping part 4212 in the vertical direction, and the two ends of the first elastic member 423 are fixedly connected to the upper clamping part 4211 and the lower clamping part 4212 respectively.

[0059] The first elastic element 423 enables rapid clamping, thereby improving the clamping force and clamping efficiency of the second clamping assembly 42 on the product to be tested.

[0060] In this embodiment, the two ends of the first elastic member 423 are welded to the upper clamping part 4211 and the lower clamping part 4212, respectively.

[0061] Specifically, the first elastic element 423 is a tension spring. The shortest length of the tension spring is less than or equal to the vertical distance between the upper clamping part 4211 and the lower clamping part 4212 when they abut against each other. In use, the nut 4222 is loosened from the screw 4221 to widen the distance between the upper clamping part 4211 and the lower clamping part 4212. At this time, the tension spring is in a stretched state. When the product to be tested is placed between the upper clamping part 4211 and the lower clamping part 4212, the tension spring automatically narrows the distance between the upper clamping part 4211 and the lower clamping part 4212 to clamp the product to be tested.

[0062] like Figure 1-2 As shown, in another preferred embodiment, a plurality of guide rods 6 are also provided between the two support plates 23, and the axis of the guide rods 6 is parallel to the axis of the transmission screw 21; the transmission slider 22 is sleeved on the guide rods 6 and moves along the guide rods 6.

[0063] The guide rod 6 serves two purposes: firstly, it provides auxiliary guidance for the transmission slider 22; secondly, it works in conjunction with the transmission screw 21 to further fix the transmission slider 22, improving its stability and ensuring that it moves stably in a straight line along the axial direction of the transmission screw 21. This, in turn, ensures the stability of the first clamping assembly 41 connected to the transmission slider 22. If only the transmission screw 21 is provided, the transmission slider 22, while moving linearly along the axial direction of the transmission screw 21, is prone to rotating around the axis of the transmission screw 21, resulting in poor stability during its movement.

[0064] like Figure 1-2 As shown, in another preferred embodiment, a positioning rod 7 is also provided between the two support plates 23, and the positioning rod 7 passes through the transmission slider 22; two positioning members 71 are also provided on the positioning rod 7, and the transmission slider 22 is sandwiched between the two positioning members 71 to lock the relative position of the transmission slider 22 and the transmission lead screw 21.

[0065] After the transmission slider 22 completes its movement via the positioning component 71, it is further fixed to improve the stability of the transmission slider 22 and facilitate the measurement by the push-pull force gauge 8, thereby improving the accuracy of the measurement.

[0066] like Figure 1-2 As shown, in another preferred embodiment, the two ends of the positioning rod 7 are fitted with second elastic members 72; the second elastic members 72 are disposed between the transmission slider 22 and the support plate 23 and abut against the support plate 23, so as to provide buffering for the moving transmission slider 22.

[0067] The second elastic element 72 buffers the impact force generated by the movement of the transmission slider 22, avoiding direct collision of hard parts and extending the service life of the device and its components.

[0068] The second elastic element 72 is a tension spring or a compression spring.

[0069] Furthermore, the positioning rod 7 is equipped with a scale to facilitate the calculation of the distance the transmission slider 22 pushes and pulls the product under test.

[0070] like Figure 1-4 As shown, the operating steps of this utility model are as follows (taking the product to be tested for tensile strength as an example):

[0071] Step 1: Start the drive mechanism 3. The transmission slider 22 moves along the transmission lead screw 21 until the first clamping component 41 is close to the second clamping component 42, then turn off the drive mechanism 3.

[0072] Step 2: Adjust the height adjustment mechanism 5 so that the clamping surface of the bottom wall 4112 in the first clamping assembly 41 and the clamping surface of the lower clamping part 4212 in the second clamping assembly 42 are at the same horizontal height, and then lock the rack 52 and guide post 53 with fastener 55.

[0073] Step 3: Start the drive mechanism 3, move the first clamping component 41 away from the second clamping component 42 by a distance (this distance is less than the length of the product under test before stretching and allows the product under test to be easily placed into the clamping structure), and then turn off the drive mechanism 3.

[0074] Step 4: Fix one end of the product to be tested to the first clamping component 41 and the other end to the second clamping component 42;

[0075] Step 5: Start the drive mechanism 3, stretch the product under test, and simultaneously observe the measurement value of the push-pull force gauge 8. Stop stretching after reaching the preset value or the critical value of the product under test, lock the transmission slider 22 with the positioning component 71, and record the test value. The above completes all operations of the push-pull force testing device.

[0076] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A push-pull force testing device, comprising a push-pull force gauge (8) and a test platform connected to the push-pull force gauge (8), characterized in that, The testing platform includes: Base (1); The transmission mechanism (2) includes a transmission screw (21) and a transmission slider (22) sleeved on the transmission screw (21). The transmission screw (21) is fixed above the base (1) by two support plates (23) arranged opposite to each other. The transmission slider (22) moves linearly back and forth along the axis of the transmission screw (21). The drive mechanism (3) is connected to the transmission screw (21) and drives the transmission screw (21) to rotate; The clamping mechanism (4) is used to clamp the product to be tested, including a first clamping component (41) and a second clamping component (42). The first clamping component (41) is connected to the transmission slider (22), and the second clamping component (42) is connected to the push-pull force gauge (8) and disposed on the base (1). The first clamping component (41) and the second clamping component (42) are disposed opposite to each other along the axial direction of the transmission lead screw (21). A height adjustment mechanism (5) is provided on the base (1) and connected to the push-pull force gauge (8) to drive the push-pull force gauge (8) to move in the vertical direction.

2. The push-pull force detection device according to claim 1, characterized in that, The height adjustment mechanism (5) includes a gear (51), a rack (52) meshing with the gear (51), and a guide post (53) slidably connected to the rack (52). The gear (51) is rotatably connected to the support plate (23) via a connecting rod (54), and the rack (52) reciprocates in the vertical direction due to the rotation of the gear (51). The guide post (53) is fixedly connected to the base (1), and the rack (52) is fixedly connected to the push-pull force gauge (8) and moves along the guide post (53) to adjust the height of the push-pull force gauge (8).

3. The push-pull force detection device according to claim 1, characterized in that, The first clamping assembly (41) includes a C-shaped fixed seat (411), the top wall (4111) and the bottom wall (4112) of the fixed seat (411) are arranged opposite to each other, and a pressure block (412) is provided between the top wall (4111) and the bottom wall (4112). The fixed seat (411) and the pressure block (412) are connected by a rotating rod (413). The pressure block (412) is threadedly connected to the rotating rod (413) and reciprocates between the top wall (4111) and the bottom wall (4112) along the rotating rod (413).

4. The push-pull force detection device according to claim 3, characterized in that, The product to be tested is sandwiched between the lower surface of the pressure block (412) and the upper surface of the bottom wall (4112). Both the lower surface of the pressure block (412) and the upper surface of the bottom wall (4112) are provided with straight teeth (414), and the straight teeth (414) on the lower surface of the pressure block (412) and the straight teeth (414) on the upper surface of the bottom wall (4112) are in concave-convex fit.

5. The push-pull force detection device according to claim 1, characterized in that, The second clamping assembly (42) includes a clamping member (421) and a locking member (422). The clamping member (421) in the vertical direction includes two separable parts: an upper clamping part (4211) and a lower clamping part (4212). The clamping member (421) is fixedly connected to the push-pull force gauge (8). The locking member (422) connects and locks the upper clamping part (4211) and the lower clamping part (4212).

6. The push-pull force detection device according to claim 5, characterized in that, The locking member (422) includes a screw (4221) and a nut (4222) sleeved on the screw (4221). The screw (4221) passes through the upper clamping part (4211) and connects to the lower clamping part (4212). The nut (4222) cooperates with the screw (4221) to lock the upper clamping part (4211) and the lower clamping part (4212).

7. The push-pull force detection device according to claim 6, characterized in that, The second clamping assembly (42) further includes a first elastic member (423) sleeved on the screw (4221); the first elastic member (423) is disposed between the upper clamping part (4211) and the lower clamping part (4212) in the vertical direction, and the two ends of the first elastic member (423) are fixedly connected to the upper clamping part (4211) and the lower clamping part (4212) respectively.

8. The push-pull force detection device according to claim 2, characterized in that, Multiple guide rods (6) are also provided between the two support plates (23), and the axis of the guide rods (6) is parallel to the axis of the transmission screw (21); the transmission slider (22) is sleeved on the guide rods (6) and moves along the guide rods (6).

9. The push-pull force detection device according to claim 2, characterized in that, A positioning rod (7) is also provided between the two support plates (23), and the positioning rod (7) passes through the transmission slider (22); two positioning parts (71) are also provided on the positioning rod (7), and the transmission slider (22) is sandwiched between the two positioning parts (71) to lock the relative position of the transmission slider (22) and the transmission screw (21).

10. The push-pull force detection device according to claim 9, characterized in that, The two ends of the positioning rod (7) are fitted with second elastic elements (72); the second elastic elements (72) are disposed between the transmission slider (22) and the support plate (23) and abut against the support plate (23) to provide buffer for the moving transmission slider (22).

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