A tong fixture and drawing apparatus

Abstract

The utility model provides a kind of clamp fixing device and drawing equipment, it is related to mechanics detection device technical field.The clamp fixing device includes the fixed assembly and clamping assembly of cooperative action, the stable fixing of clamp body can be realized, to effectively solve the technical problem that clamp is difficult to be fixed stably in drawing test process.Specifically, fixed assembly includes fixed frame, fixing piece and positioning piece.Fixing piece is connected with fixed frame, to avoid the swing of the head of clamp, to provide a stable clamping basis for clamp.Positioning piece is connected with fixed frame, to pass through the gap between the two handles of clamp, and with the handle inboard of clamp abut, to realize the transverse limiting and support of clamp, ensure that clamp maintains stable posture during testing.And clamping assembly is located below fixed assembly, and it is used to clamp the sleeve of clamp, ensure that it maintains stable during drawing, so as to accurately evaluate the tensile strength of sleeve.

Description

Technical Field

[0001] This utility model relates to the field of mechanical testing device technology, specifically to a clamp fixing device and a pulling device. Background Technology

[0002] In practical use, the clamp sleeve may detach or deform due to external forces such as pulling or torsion, affecting the normal use of the tool and even causing safety hazards. Therefore, testing the bonding strength between the clamp sleeve and the clamp body is particularly important.

[0003] Currently, the industry generally uses pull-out tests to simulate the stress on the clamp sleeve, which involves fixing the wire cutters and applying a tensile force to the clamp sleeve to evaluate its pull-out resistance.

[0004] However, the inventors discovered that during actual pull tests of the wire cutters' clamp sleeves, the clamp body was difficult to keep stable and was prone to detachment, thus affecting the accuracy and reliability of the test results. Utility Model Content

[0005] The purpose of this utility model is to provide a clamp fixing device and a pulling device that can achieve a stable fixation of the clamp body, effectively prevent the clamp from coming off during the test, thereby improving the stability of the pulling test and the accuracy and reliability of the test results.

[0006] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a clamp fixing device, comprising: The fixing assembly includes a fixing frame, a fixing member, and a positioning member; wherein, the fixing member is connected to the fixing frame and is used to abut against the jaws of the clamps; the positioning member is connected to the fixing frame and is used to pass through the gap between the two handles of the clamps; A clamping assembly is located on one side of a fixing assembly and is used to clamp the jaws or abut the nested end of the clamps.

[0007] In an optional embodiment, the fixing frame has a slide groove extending along a first direction, and the fixing assembly further includes a locking component, the fixing member slidingly engaging with the slide groove, and the locking component being used to lock the position of the fixing member.

[0008] In an optional embodiment, the locking component includes a positioning pin and a connector; wherein one end of the connector is connected to the fixing member, and the other end has a second positioning hole that mates with the positioning pin. The fixing bracket is provided with at least two first positioning holes spaced apart along the first direction. The positioning pin can selectively engage with one of the first positioning holes and with the second positioning hole.

[0009] In an optional embodiment, there are at least two second positioning holes that are spaced apart along a first direction, and the positioning pin may selectively engage with one of the second positioning holes.

[0010] In an optional implementation, the locking components are in two sets and are respectively connected to both ends of the fixing member.

[0011] In an optional embodiment, the fixing frame is provided with at least two third positioning holes spaced apart along the second direction, and the positioning element can selectively engage with one of the third positioning holes; wherein the second direction is perpendicular to the first direction.

[0012] In an optional embodiment, the fixing frame includes a first wall portion, a second wall portion, and a third wall portion connected in sequence, and the first wall portion, the second wall portion, and the third wall portion together form a U-shaped structure. The two ends of the fixing member are connected to the first wall and the second wall respectively, and the two ends of the positioning member are connected to the first wall and the second wall respectively.

[0013] In an optional embodiment, the clamping assembly includes a positioning frame, an adjusting member, and two clamping members; at least one clamping member is slidably disposed on the positioning frame, and the two clamping members cooperate to clamp the jaws or abut the end of the jaws. The adjusting member is connected to the positioning frame and to at least one clamping member for adjusting the distance between the two clamping members.

[0014] In an optional embodiment, a positioning seat is also included, the positioning seat having a guide rail extending along a first direction, and the clamping assembly slidingly engaging with the guide rail.

[0015] Secondly, this utility model provides a pulling device, including a tensile testing machine and a clamping device as described in any of the foregoing embodiments. The output end of the tensile testing machine is connected to a fixed frame, and the tensile testing machine is also provided with a fixed seat, which is connected to the clamping assembly.

[0016] The beneficial effects of the clamp fixing device and pulling device provided in this embodiment of the utility model include: This invention provides a clamp fixing device and a pulling device. The clamp fixing device includes a fixing component and a clamping component that work together to achieve stable fixing of the clamp body, thereby effectively solving the technical problem of difficulty in stabilizing the clamp during the pulling test. Specifically, the fixing component includes a fixing frame, a fixing member, and a positioning member. The fixing member is connected to the fixing frame to prevent the clamp head from swinging, thus providing a stable clamping base for the clamp. The positioning member is connected to the fixing frame and passes through the gap between the two handles of the clamp, abutting against the inner side of the handles of the clamp to achieve lateral limitation and support of the clamp, ensuring that the clamp maintains a stable posture during the test. The clamping component is located below the fixing component and is used to clamp the clamp sleeve or abut against the end of the clamp sleeve to accurately evaluate the tensile strength of the clamp sleeve. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the clamp fixing device provided in this embodiment; Figure 2 This is a schematic diagram of the structure of the fixing component provided in this embodiment; Figure 3 This is a schematic diagram of the clamp holding the fastener in this embodiment; Figure 4 This is a schematic diagram of the clamping assembly provided in this embodiment; Figure 5 This is a schematic diagram of the drawing device provided in this embodiment.

[0019] Icons: 1-Pull-out device; 10-Clamp fixing device; 30-Tension testing machine; 31-Output end; 33-Fixed seat; 50-Clamp; 100-Fixed component; 110-Fixed frame; 111-Slide groove; 113-First positioning hole; 115-Third positioning hole; 117-First wall; 118-Second wall; 119-Third wall; 120-Fixed component; 130-Positioning component; 140-Positioning pin; 150-Connector; 151-Second positioning hole; 300-Clamping component; 310-Positioning frame; 320-Clamping component; 330-Adjusting component; 500-Positioning seat; 510-Guide rail. Detailed Implementation

[0020] In related technologies, when conducting pull-out tests on the clamp sleeves of wire cutters, the clamp body is difficult to keep stable and is prone to detachment, thus affecting the accuracy and reliability of the test results.

[0021] To address the aforementioned problems, this utility model provides a clamp fixing device and a pulling device 1, which can achieve stable fixing of the clamp body, effectively preventing the clamp from detaching during the test, thereby improving the stability of the pulling test and the accuracy and reliability of the test results.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they 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.

[0026] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0028] The following describes in detail the overall structure, working principle, and technical effects of the clamp fixing device and pulling equipment provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0029] Please see Figure 1 This utility model provides a clamp fixing device 10 and a pulling device 1, which are applied in the field of mechanical testing device technology. It includes a fixing component 100 and a clamping component 300. The two work together to achieve a stable fixation of the clamp 50 body, thereby effectively solving the technical problem that the clamp 50 is difficult to fix stably during the pulling test.

[0030] The fixing assembly 100 includes a fixing frame 110, a fixing member 120, and a positioning member 130. The fixing member 120 is connected to the fixing frame 110 and abuts against the jaws of the clamp 50, limiting jaw swing and providing a stable clamping base for the clamp 50. The positioning member 130 is connected to the fixing frame 110 and passes through the gap between the two handles of the clamp 50, abutting against the inside of the handles of the clamp 50 to achieve lateral limiting and support of the clamp 50, ensuring the clamp 50 maintains a stable posture during testing. The clamping assembly 300 is located below the fixing assembly 100 and is used to clamp the jaw sleeve of the clamp 50 or abut against the end of the jaw sleeve, ensuring its stability during pulling to accurately assess the pull-out resistance of the jaw sleeve.

[0031] In practical applications, during testing, the fixing frame 110 is connected to the tensile testing machine 30 and moves upward under the drive of the tensile testing machine 30, causing the fixing component 120 and the positioning component 130 to move upward synchronously, thereby allowing the clamp 50 to move upward in a stable posture. At the same time, the clamping component 300, located below the fixing component 100, clamps and fixes the clamp sleeve of the clamp 50 or abuts against the end of the clamp sleeve, pushing the clamp sleeve to detach from the handle, so as to accurately assess its tensile strength.

[0032] To improve the applicability of the clamp fixing device 10, please refer to Figure 2 The mounting bracket 110 has a sliding groove 111 extending along a first direction. The fixing member 120 slides in the sliding groove 111, allowing the user to adjust the position of the fixing member 120 on the mounting bracket 110 along the first direction. Based on this, the user can flexibly adjust the installation position of the fixing member 120 to adapt to the testing requirements of clamps 50 of different specifications.

[0033] like Figure 3 As shown, the fixing member 120 is strip-shaped, and its length direction is consistent with the rotation axis direction of the clamp 50. A clamping hole is formed through the fixing member 120 along its height direction. One installation method is to have the inner wall of one side of the clamp jaws of the clamp 50 abut against the inner wall of the clamping hole, and the inner wall of the other side of the clamp jaws contact the side wall of the fixing member 120. Another installation method is to insert the clamp head into the clamping hole and clamp the clamp head by the fixing member 120, thereby reducing the swing of the clamp 50 during the test and improving the test stability.

[0034] Optionally, the slide groove 111 is a rectangular through hole formed on the fixing bracket 110, and its length direction extends along the first direction. The fixing member 120 is provided with a sliding part that mates with the slide groove 111. The shape of the sliding part is adapted to the inner wall of the slide groove 111, so that the fixing member 120 can slide smoothly along the length direction of the slide groove 111. The fixing assembly 100 also includes a locking assembly, which can lock the position of the fixing member 120 on the slide groove 111.

[0035] Furthermore, to ensure that the fixing member 120 remains stable and reliably fixed after adjustment, two sets of locking components are provided, located at opposite ends of the fixing member 120. Specifically, the locking components include a positioning pin 140 and a connecting member 150. One end of the connecting member 150 is fixed to the sliding part, and the other end has a second positioning hole 151 that mates with the positioning pin 140. The fixing bracket 110 has at least two first positioning holes 113 spaced apart along a first direction. The positioning pin 140 passes through the second positioning hole 151 and can selectively mate with one of the first positioning holes 113 to lock the adjusted position of the fixing member 120.

[0036] In the specific operation process, the user can first slide the fixing component 120 along the slide groove 111 to the desired position, and then insert the positioning pin 140 into the first positioning hole 113 of the corresponding fixing bracket 110 and the second positioning hole 151 of the connector 150 to complete the quick positioning and reliable fixation of the fixing component 120. This structure is easy to operate and accurate in positioning, and can effectively prevent the fixing component 120 from sliding or shifting due to force during the pull-out test, thereby improving the stability of the clamp 50 and the accuracy of the test results.

[0037] In addition, in embodiments where the locking assembly has two sets, there are two connectors 150, each connected to one end of the fixing member 120, and the other end of each connector 150 has a second positioning hole 151 that mates with the positioning pin 140. Therefore, after adjusting the position of the fixing member 120, the user can simultaneously insert the positioning pin 140 into the second positioning holes 151 on both connectors 150 and the first positioning hole 113 on the corresponding fixing bracket 110, achieving dual-point synchronous positioning and stable locking of the fixing member 120.

[0038] Understandably, compared to single-point positioning, this dual-point positioning method can effectively prevent the fastener 120 from tilting, shifting, or loosening due to uneven force during the pull-out test, thereby further improving the stability of the clamp 50 and the accuracy of the test results.

[0039] Furthermore, there are at least two second positioning holes 151, preferably three in this embodiment. The three second positioning holes 151 are distributed at intervals along the first direction, and the positioning pin 140 can selectively engage with one of the second positioning holes 151. It is understood that the arrangement of multiple second positioning holes 151 allows the connector 150 to form multiple matching combinations with the multiple first positioning holes 113 distributed along the first direction on the fixing frame 110, thereby increasing the lockable position of the fixing member 120, realizing flexible adjustment and quick positioning switching of the fixing member 120, enhancing the convenience of adjustment operation and the accuracy of positioning, and facilitating the adaptation to clamps 50 with different structures and sizes.

[0040] In addition, to further improve the structural stability of the fastener 120 after adjustment, multiple positioning pins 140 can be simultaneously inserted into the corresponding first positioning hole 113 and second positioning hole 151 to achieve multi-point fixation.

[0041] Optionally, the fixing bracket 110 is provided with seven first positioning holes 113 spaced apart along the first direction, each first positioning hole 113 having a diameter of 10 mm. Correspondingly, the connecting member 150 is also provided with three second positioning holes 151 spaced apart along the first direction, each second positioning hole 151 also having a diameter of 10 mm. Based on the above, a positioning pin 140 with a diameter of 10 mm can be selectively inserted into any set of corresponding first positioning holes 113 and second positioning holes 151, thereby achieving quick locking of the adjusting position of the fixing member 120.

[0042] Furthermore, the fixing frame 110 is provided with a set of third positioning holes 115 on both sides of the clamp 50. Each set of third positioning holes 115 has at least two holes and is distributed at intervals along a second direction, wherein the second direction is perpendicular to the first direction. The positioning element 130 can selectively pass through any one of the third positioning holes 115 in one set, and after passing through the middle of the two handles of the clamp 50, it is inserted and engaged with the corresponding third positioning hole 115 in the other set. Based on the above configuration, the user can flexibly adjust the installation position of the positioning element 130 so that it is accurately inserted into the gap between the two handles of the clamp 50 and abuts against the inner side of the handle, thereby achieving stable positioning and support of the clamp 50.

[0043] In this embodiment, multiple third positioning holes 115 are arranged vertically at intervals on the fixing frame 110, forming multiple selectable positioning points. The end of the positioning member 130 is provided with a connecting part that matches the third positioning hole 115. The user can install the positioning member 130 in a suitable position of the third positioning hole 115 according to the actual specifications of the clamp 50, so as to adapt to the testing requirements of clamps 50 of different sizes.

[0044] Furthermore, it should be noted that in the embodiments provided in this application, the first direction refers to the horizontal direction and the second direction refers to the vertical direction, that is, the distribution direction of the fixing component 100 and the clamping component 300.

[0045] Optionally, the mounting bracket 110 is provided with three circular through holes of 10 mm in diameter spaced apart along the second direction, serving as a third positioning hole 115 for adjusting the height of the positioning member 130. Correspondingly, the end of the positioning member 130 is formed into a pin-shaped structure of 10 mm in diameter, which can be selectively inserted into one of the circular through holes to adjust and fix the installation height of the positioning member 130.

[0046] In addition, it should be noted that the adjustable fit structure between the third positioning hole 115 and the positioning member 130 can also work in conjunction with the adjustment function of the fixing member 120 along the first direction to achieve multi-dimensional adaptation of the clamp 50 in both horizontal and vertical directions, thereby further enhancing the versatility and practicality of the clamp fixing device 10.

[0047] Please refer to it again. Figure 2 The mounting bracket 110 includes a first wall portion 117, a second wall portion 118, and a third wall portion 119 connected in sequence, and the first wall portion 117, the second wall portion 118, and the third wall portion 119 together form a U-shaped structure. It is understood that the U-shaped structure has good spatial load-bearing capacity and can provide a stable installation platform for components such as the fixing member 120 and the positioning member 130.

[0048] Furthermore, based on this U-shaped structure, the two ends of the fixing member 120 are connected to the first wall portion 117 and the second wall portion 118 respectively, thereby spanning across the open end of the U-shaped structure and providing support for the clamping jaws of the clamp 50. Correspondingly, the two ends of the positioning member 130 are connected to the first wall portion 117 and the second wall portion 118 respectively, and are located below the fixing member 120, thereby achieving lateral limiting and stable positioning of the clamp 50.

[0049] During the pull-out test, the clamp 50 is subjected to an upward pulling force, which is transmitted to the fixing frame 110 through the fixing member 120. Due to the high structural rigidity and force distribution capacity of the U-shaped structure, it can effectively bear the pulling force and distribute it throughout the fixing assembly 100, thereby ensuring that the clamp 50 can be stably clamped on the fixing member 120 during the test and maintain a good posture under the support of the positioning member 130.

[0050] Please see Figure 4The clamping assembly 300 includes a positioning frame 310, an adjusting member 330, and two clamping members 320. At least one clamping member 320 is slidably mounted on the positioning frame 310 and can move along a predetermined direction to clamp or release the clamping sleeve of the clamp 50. The predetermined direction is preferably aligned with the rotation axis of the clamp 50. The adjusting member 330 is connected to the positioning frame 310 and to at least one clamping member 320, used to adjust the distance between the two clamping members 320 to achieve a stable clamping of the clamping sleeve.

[0051] For example, the adjusting member 330 can be a threaded adjusting rod, one end of which extends out of the outside of the positioning frame 310 and is threadedly connected to the positioning frame 310, and the other end is rotatably connected to the corresponding clamping member 320. By rotating the adjusting rod, the user can drive the corresponding clamping member 320 to slide in the movable cavity along a set direction, thereby changing the distance between the two clamping members 320 to adapt to the outer diameter of the clamp sleeve of the clamp 50 being tested.

[0052] Based on the above structural configuration, when the two clamping members 320 are located directly above the clamp sleeve of the clamp 50 and the distance between the two clamping members 320 is less than the width of the clamp sleeve, or when the two clamping members 320 clamp the clamp sleeve of the clamp 50, the two clamping members 320 can cooperate to push the clamp sleeve of the clamp 50 to peel off the handle of the clamp 50, which can effectively prevent it from sliding or tilting during the pull-out test, thereby ensuring that the pull-out force can be applied to the clamp sleeve stably and accurately, and avoiding test errors or equipment abnormalities caused by loose clamping.

[0053] Please refer to it again. Figure 1 The clamp fixing device 10 also includes a positioning seat 500, which is provided with a guide rail 510 extending along a first direction. The clamping assembly 300 slides with the guide rail 510, so that it can move smoothly along the first direction (such as the horizontal direction) to adjust the relative position between the clamping member 320 in the clamping assembly 300 and the clamp sleeve of the clamp 50 to be tested, thereby improving the clamping accuracy.

[0054] Specifically, the positioning bracket 310 in the clamping assembly 300 has a protrusion structure at its bottom that matches the guide rail 510. This protrusion is slidably embedded in the guide rail 510, achieving a stable fit between the clamping assembly 300 and the guide rail 510. Furthermore, the device is equipped with fasteners to lock the clamping assembly 300 relative to the positioning seat 500 after it has been adjusted to a preset position, preventing displacement due to external forces during the pull-out test. The fasteners can specifically be locking screws.

[0055] In summary, this utility model provides a clamp fixing device 10, which includes a fixing component 100 and a clamping component 300 that work together to achieve stable fixing of the clamp 50 body, thereby effectively solving the technical problem of the clamp 50 being difficult to fix stably during the pull-out test. The fixing component 100 includes a fixing frame 110, a fixing member 120, and a positioning member 130. The fixing member 120 is connected to the fixing frame 110 to prevent the clamp head of the clamp 50 from swinging, thus providing a stable clamping base for the clamp 50. The positioning member 130 is connected to the fixing frame 110 and passes through the gap between the two handles of the clamp 50, abutting against the inner side of the handles of the clamp 50 to achieve lateral limiting and support of the clamp 50, ensuring that the clamp 50 maintains a stable posture during the test. The clamping component 300 is located below the fixing component 100 and is used to clamp the clamp sleeve of the clamp 50, ensuring its stability during the pull-out process, so as to accurately evaluate the pull-out resistance of the clamp sleeve.

[0056] Please see Figure 5 This utility model also provides a pulling device 1, which includes a tensile testing machine 30 and the clamp fixing device 10 in the aforementioned embodiments. The output end 31 of the tensile testing machine 30 is connected to the fixing frame 110 of the clamp fixing device 10, and is used to apply a pulling force to the clamp 50. Correspondingly, the tensile testing machine 30 is also provided with a fixing seat 33, which is connected to the clamping assembly 300, thereby ensuring the installation stability and positional accuracy of the clamp fixing device 10 during the testing process.

[0057] Furthermore, it should be noted that since the pulling device 1 includes the clamp fixing device 10 in the aforementioned embodiment, it can also achieve stable fixing of the clamp 50 body, effectively preventing the clamp 50 from detaching during the test, thereby improving the stability of the pulling test and the accuracy and reliability of the test results. Further details will not be elaborated here.

[0058] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A clamp fixing device, characterized in that, include: A fixing assembly (100) includes a fixing frame (110), a fixing member (120), and a positioning member (130); wherein the fixing member (120) is connected to the fixing frame (110) and is used to abut against the jaws of the clamps (50); the positioning member (130) is connected to the fixing frame (110) and is used to pass through the gap between the two handles of the clamps (50); A clamping assembly (300) is located on one side of the fixing assembly (100) and is used to clamp the sleeve of the clamp (50) or abut the end of the sleeve.

2. The clamp fixing device according to claim 1, characterized in that, The fixing frame (110) has a sliding groove (111) extending along a first direction. The fixing component (100) also includes a locking component. The fixing member (120) is slidably engaged with the sliding groove (111). The locking component is used to lock the position of the fixing member (120).

3. The clamp fixing device according to claim 2, characterized in that, The locking assembly includes a positioning pin (140) and a connector (150); wherein one end of the connector (150) is connected to the fixing member (120), and the other end is provided with a second positioning hole (151) that cooperates with the positioning pin (140). The fixing frame (110) is provided with at least two first positioning holes (113) spaced apart along the first direction. The positioning pin (140) can selectively cooperate with one of the first positioning holes (113) and cooperate with the second positioning hole (151).

4. The clamp fixing device according to claim 3, characterized in that, There are at least two second positioning holes (151) and they are spaced apart along the first direction. The positioning pin (140) can selectively engage with one of the second positioning holes (151).

5. The clamp fixing device according to claim 3, characterized in that, The locking components are in two sets and are respectively connected to both ends of the fixing member (120).

6. The clamp fixing device according to claim 2, characterized in that, The fixing frame (110) is provided with at least two third positioning holes (115) spaced apart along the second direction, and the positioning member (130) can selectively cooperate with one of the third positioning holes (115); wherein the second direction is perpendicular to the first direction.

7. The clamp fixing device according to any one of claims 1 to 6, characterized in that, The fixing frame (110) includes a first wall portion (117), a second wall portion (118), and a third wall portion (119) connected in sequence, and the first wall portion (117), the second wall portion (118), and the third wall portion (119) together form a U-shaped structure; The two ends of the fixing member (120) are connected to the first wall portion (117) and the second wall portion (118) respectively, and the two ends of the positioning member (130) are connected to the first wall portion (117) and the second wall portion (118) respectively.

8. The clamp fixing device according to any one of claims 1 to 6, characterized in that, The clamping assembly (300) includes a positioning frame (310), an adjusting member (330), and two clamping members (320); at least one of the clamping members (320) is slidably disposed on the positioning frame (310), and the two clamping members (320) cooperate to clamp the pliers (50) or abut the end of the pliers. The adjusting member (330) is connected to the positioning frame (310) and to at least one of the clamping members (320) for adjusting the distance between the two clamping members (320).

9. The clamp fixing device according to any one of claims 1 to 6, characterized in that, It also includes a positioning seat (500) having a guide rail (510) extending along a first direction, and the clamping assembly (300) slidingly engaging with the guide rail (510).

10. A drawing device, characterized in that, Includes a tensile testing machine (30) and a clamp fixing device (10) as described in any one of claims 1 to 9, wherein the output end (31) of the tensile testing machine (30) is connected to the fixing frame (110), and the tensile testing machine (30) is further provided with a fixing seat (33), which is connected to the clamping assembly (300).

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