Wire insulating layer wrapping force testing device

Abstract

The utility model discloses a wire insulating layer wrapping force testing device, which belongs to the technical field of wire testing devices and comprises a workbench, a first clamp, a dynamometer, a second clamp and a threading plate. The first clamp is arranged on the workbench, the dynamometer is slidably installed on the workbench, the second clamp is installed on the dynamometer, the threading plate is rotatably installed on the dynamometer, the first clamp and the second clamp are arranged at intervals in the sliding direction of the dynamometer, the threading plate is located between the first clamp and the second clamp, and a test channel is formed between the first clamp and the second clamp. A plurality of threading holes are formed in the threading plate, the plurality of threading holes are circumferentially distributed at intervals along the rotating axis of the threading plate, the diameters of at least part of the threading holes are different, and the test channel is located on the rotating path of the threading holes. The wire insulating layer wrapping force testing device can improve the testing efficiency of the wire insulating layer wrapping force.

Description

Technical Field

[0001] This utility model relates to the technical field of wire testing devices, and in particular to a wire insulation layer wrapping force testing device. Background Technology

[0002] As product categories increase, customers have increasingly higher requirements for the performance of wire insulation layers or insulation sheaths. Therefore, it is generally necessary to quantify the sheathing force of wire insulation layers. Current testing equipment is complex in structure and operation. Before quantifying the sheathing force of wire insulation layers, the diameter of the wire must be manually measured and confirmed, resulting in low testing efficiency. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a wire insulation layer wrapping force testing device, which can improve the testing efficiency of wire insulation layer wrapping force.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A wire insulation layer wrapping force testing device, comprising:

[0006] Workbench;

[0007] The first fixture is disposed on the worktable;

[0008] The force gauge is slidably mounted on the worktable;

[0009] The second clamp is installed on the force measuring end of the force measuring device;

[0010] as well as

[0011] A threading plate is rotatably mounted on the force measuring device;

[0012] The first clamp and the second clamp are arranged at intervals along the sliding direction of the force measuring device. The threading plate is located between the first clamp and the second clamp, forming a test channel between the first clamp and the second clamp. The threading plate is provided with a plurality of threading holes, which are arranged circumferentially at intervals along the rotation axis of the threading plate. At least some of the threading holes have different diameters, and the test channel is located on the rotation path of the threading holes.

[0013] Optionally, both the first clamp and the second clamp include a first clamping block, a second clamping block, a drive screw, and a spring;

[0014] The first clamping block and the second clamping block of the first clamping fixture are both slidably mounted on the worktable. The first clamping block and the second clamping block of the second clamping fixture are both slidably mounted on the worktable. The spring is sleeved on the drive screw and located between the first clamping block and the second clamping block. A clamping channel is formed between the first clamping block and the second clamping block. The drive screw is threadedly connected to both the first clamping block and the second clamping block to drive the first clamping block and the second clamping block to move closer to each other or further away from each other.

[0015] Optionally, the wire insulation wrapping force testing device further includes a wire cutter mounted on the workbench; the wire cutter is used to cut the wire.

[0016] Optionally, the wire cutter includes a first base, a wire clamping plate mounted on the first base, and a wire cutter slidably mounted on the first base; the first base is mounted on the workbench, and the first base is provided with a plurality of scale strips spaced apart along the sliding path of the wire cutter.

[0017] Optionally, the wire insulation layer wrapping force testing device further includes a cutter mounted on the workbench; the cutter is used to divide the insulation layer on the wire into several segments.

[0018] Optionally, the cutter includes a second base, a third clamp mounted on the second base, a support base mounted on the second base, a rotating ring rotatably mounted on the support base, and a first cutting blade and a second cutting blade; the second base is mounted on the worktable, the rotating ring has an inner hole, the rotation axis of the rotating ring is located between the first cutting blade and the second cutting blade, and the first cutting blade and the second cutting blade are slidably disposed on the rotating ring along the radial direction of the rotating ring.

[0019] Optionally, the rotating ring is equipped with a first positioning plate and a second positioning plate; the first positioning plate is threadedly connected to a first adjusting screw, the second positioning plate is threadedly connected to a second adjusting screw, the first cutting blade is mounted on the first adjusting screw, and the second cutting blade is mounted on the second adjusting screw.

[0020] Optionally, the workbench is provided with a lead screw module, and the output end of the lead screw module is connected to the force gauge via a transmission connection.

[0021] Optionally, the centers of the plurality of threading holes are all located on the same circular trajectory, and the plurality of threading holes are evenly spaced along the circular trajectory, with the diameter of the plurality of threading holes increasing or decreasing sequentially.

[0022] Optionally, the wire insulation layer wrapping force testing device is characterized in that it further includes a handwheel for driving the force measuring device to slide; the handwheel is rotatably mounted on the force measuring device.

[0023] The beneficial effects of this utility model are as follows:

[0024] This utility model's wire insulation layer wrapping force testing device features a rotatable threading plate on the force measuring device. The threading plate has threading holes of different diameters to accommodate different wires. During the wire insulation layer wrapping force test, the wire is threaded through the matching threading holes, and then the first and second clamps hold both ends of the wire. Finally, the force measuring device is driven to slide, thus testing the wire insulation layer wrapping force. This utility model's wire insulation layer wrapping force testing device has a simple structure, is easy and convenient to operate, and does not require additional testing of the wire diameter, thereby improving the testing efficiency of wire insulation layer wrapping force. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 A schematic diagram of a wire insulation layer wrapping force testing device;

[0027] Figure 2 This is a structural diagram of the workbench, the first fixture, the force measuring device, the second fixture, and the threading plate;

[0028] Figure 3 This is a schematic diagram of the wire cutter.

[0029] Figure 4 This is a schematic diagram of the cutter's structure.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Workbench; 2. First clamp; 3. Force gauge; 4. Second clamp; 5. Threading plate; 6. Wire cutter; 7. Cutter; 8. Lead screw module; 9. Handwheel;

[0032] 201. First clamping block; 202. Second clamping block; 203. Drive screw; 204. Spring;

[0033] 501. Threading hole;

[0034] 601. First base; 602. Wire clamping plate; 603. Wire cutter; 604. Guide rail; 605. Slider;

[0035] 701. Second base; 702. Third clamp; 703. Support base; 704. Rotating ring; 705. First cutting blade; 706. Second cutting blade; 707. First positioning plate; 708. Second positioning plate; 709. First adjusting screw; 710. Second adjusting screw; 711. Inner hole. Detailed Implementation

[0036] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They 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. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0042] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0043] For ease of description, unless otherwise stated, the up-down direction mentioned below is the same as the up-down direction of 1 itself, and the left-right direction mentioned below is the same as the up-down direction of 1 itself. Figure 1 Its left and right directions are consistent.

[0044] like Figures 1 to 4 As shown, a wire insulation layer wrapping force testing device includes a worktable 1, a first clamp 2, a force measuring device 3, a second clamp 4, and a threading plate 5. The force measuring device 3 is slidably mounted on the worktable 1, and can slide up and down relative to the worktable 1. The first clamp 2 is located on the upper surface of the worktable 1 and below the force measuring device 3. The force measuring device 3 has a force measuring end, and the second clamp 4 is mounted on the force measuring end of the force measuring device 3. The threading plate 5 is rotatably mounted on the force measuring device 3. The rotation axis of the threading plate 5 is vertical.

[0045] The first clamp 2 and the second clamp 4 are arranged at intervals along the sliding direction of the force measuring device 3, and the second clamp 4 and the first clamp 2 are arranged at intervals from top to bottom. A wire threading plate 5 is located between the first clamp 2 and the second clamp 4, forming a test channel for threading wires from top to bottom. The wire threading plate 5 has multiple wire threading holes 501, all of which pass through the plate from top to bottom. These holes are arranged circumferentially at intervals along the rotation axis of the wire threading plate 5. At least some of the holes 501 have different or mutually different diameters; that is, at least some holes 501 have different diameters. In this embodiment, the diameters of all holes 501 are different, and each hole corresponds to a wire of a different diameter. The test channel is located on the rotation path of the holes 501. The wire threading plate 5 is designed to be rotatable and adjustable to different positions to meet the testing needs of products of different specifications. This allows the wire insulation wrapping force testing device to test wire products of different diameters. The diameter of the threading hole 501 can be set to correspond to common wire diameters, such as 1.00 mm, 1.50 mm, 1.80 mm, and 2.50 mm. The corresponding size parameter can be marked next to each threading hole 501. Before use, the insulation layer of the wire is cut into two sections along the circumference of the wire. During use, a suitable threading hole 501 is selected, and then the wire is passed through the threading hole 501. A suitable threading hole 501 is one whose diameter is equal to or slightly larger than the wire diameter. This eliminates the need to separately measure the diameter parameter of each wire, improving testing efficiency. Next, the wire threading plate 5 is rotated to position the wire in the test channel. The height of the force measuring device 3 is adjusted up and down so that the first clamp 2 and the second clamp 4 can respectively clamp the upper and lower insulation layers of the wire. Finally, the force measuring device 3 is driven to move upward at a constant speed, causing the two insulation layers to move away from each other. The insulation layer wrapping force parameter is obtained by acquiring the parameters of the force measuring device 3. During the test, the threading hole 501 of the wire threading plate 5 can play a guiding role, preventing the wire from swaying left and right and improving the accuracy of the test. The wire insulation layer wrapping force testing device of this application can effectively quantify the insulation layer wrapping strength data, provide guidance for adjusting the wire production process, and effectively determine whether the insulation layer wrapping performance can meet customer requirements, which is beneficial for further product optimization during wire production.

[0046] Optionally, the first clamp 2 and the second clamp 4 are identical. Both the first clamp 2 and the second clamp 4 include a first clamping block 201, a second clamping block 202, a drive screw 203, and a spring 204. The first clamping block 201 and the second clamping block 202 of the first clamp 2 are slidably mounted on the worktable 1, and the first clamping block 201 and the second clamping block 202 of the second clamp 4 are also slidably mounted on the worktable 1. The spring 204 is sleeved on the drive screw 203 and located between the first clamping block 201 and the second clamping block 202. A clamping channel is formed between the first clamping block 201 and the second clamping block 202. After the wire is placed in the clamping channel, the first clamping block 201 and the second clamping block 202 can clamp the wire by moving closer together. The drive screw 203 is threadedly connected to both the first clamping block 201 and the second clamping block 202 to drive the first clamping block 201 and the second clamping block 202 to move closer together or further apart. Both the first clamping block 201 and the second clamping block 202 slide horizontally. The driving screw 203 has a first threaded section and a second threaded section with opposite thread directions, or the first clamping block 201 and the second clamping block 202 are respectively provided with a first threaded hole and a second threaded hole with opposite thread directions. By driving the driving screw 203 to rotate, the first clamping block 201 and the second clamping block 202 can be moved closer to or further away from each other. When the first clamping block 201 and the second clamping block 202 are close together, the insulation layer of the wire is clamped. When the first clamping block 201 and the second clamping block 202 are close together, the spring 204 is compressed. Finally, the nut is tightened on the driving screw 203 to achieve locking. When the driving screw 203 is rotated to move the first clamping block 201 and the second clamping block 202 further away from each other, the first clamping block 201 and the second clamping block 202 release the wire, and the spring 204 makes the rotation of the driving screw 203 less strenuous.

[0047] Furthermore, in order to make the first clamping block 201 and the second clamping block 202 hold the wire more securely, the first clamping block 201 and the second clamping block 202 are provided with anti-slip teeth to improve friction.

[0048] In one embodiment, the wire insulation wrapping force testing device further includes a wire cutter 6 mounted on the workbench 1. The wire cutter 6 is used to cut the wire. Before testing, a section of the wire needs to be cut as a test sample, and the wire cutter 6 is used to cut test samples of the same length from different wires.

[0049] Optionally, the wire cutter 6 includes a first base 601, a wire clamping plate 602 mounted on the first base 601, and a wire cutter 603 slidably mounted on the first base 601. The first base 601 is mounted on the upper surface of the workbench 1, and has multiple graduated strips spaced along the sliding path of the wire cutter 603. A guide rail 604 is provided on the side of the first base 601, and a slider 605 slides on the guide rail 604. The wire cutter 603 is rotatably mounted on the slider 605. The wire clamping plate 602 is rotatably mounted on the first base 601 via a pivot. The wire clamping plate 602 rotates relative to the first base 601. A torsion spring is provided on the pivot. One end of the torsion spring is connected to the first base 601, and the other end of the torsion spring is connected to the wire clamping plate 602. Using the torsion force of the torsion spring, the wire clamping plate 602 abuts against the upper surface of the first base 601, and the wire clamping plate 602 is located at the 0 graduated strip. When cutting the wire, one end of the wire is clamped between the wire clamping plate 602 and the upper surface of the first base 601. Then, according to the required test length, the wire cutter 603 is slid to the scale bar of the corresponding scale. Finally, the wire cutter 603 is rotated to cut the wire and obtain the test sample of the required length.

[0050] For example, the force gauge 3 is an electronic force gauge, and it is equipped with a display screen showing the magnitude of the tensile force. The test sample length in this application is 55mm. After cutting a 55mm section of wire, the insulation layer is circumferentially cut 15mm from one end, dividing it into two segments. After cutting the insulation layer into two ends, it is gently shaken at the cut to check if the insulation layer is completely severed. Next, one segment of the insulation layer is clamped in the first clamp 2, and the other segment in the second clamp 4. The clamps are then checked to ensure they are securely holding the wire. Finally, the force gauge 3 is driven upwards. Once the tensile force value on the display screen of the force gauge 3 stabilizes at a certain value, this value is recorded. Simultaneously, during the upward movement of the force gauge 3, it is necessary to observe whether the two segments of insulation layer separate by a small distance. If they separate, the test is valid; otherwise, it is invalid. To improve the accuracy of the test, each type of wire was sampled three times as a group for testing to obtain the wire parameters. For example, if the test value is between 30N and 40N, it means that the wire is suitable for manual stripping.

[0051] Optionally, the wire insulation wrapping force testing device can be designed for automatic testing. After the wire is clamped on the first clamp 2 and the second clamp, the tester can automatically move up and down to complete the tensile force test and record the value. The tester can be designed to test a range of tensile force values, and the tester can issue an alarm if the value is exceeded.

[0052] In one embodiment, the wire insulation wrapping force testing device further includes a cutter 7 mounted on the workbench 1. The cutter 7 is used to divide the insulation layer on the wire into several segments, thereby improving the efficiency and quality of insulation layer separation.

[0053] Optionally, the cutter 7 includes a second base 701, a third clamp 702 mounted on the second base 701, a support base 703 mounted on the second base 701, a rotating ring 704 rotatably mounted on the support base 703, and a first cutting blade 705 and a second cutting blade 706. The second base 701 is mounted on the worktable 1. The rotation axis of the rotating ring 704 is horizontally set, and the rotating ring 704 has an inner hole 711 that extends horizontally through the rotating ring 704. The structure of the third clamp 702 can be the same as that of the first clamp 2 and the second clamp 4. There are two third clamps 702, and the support base 703 is disposed between the two third clamps 702. The rotation axis of the rotating ring 704 is located between the first cutting blade 705 and the second cutting blade 706, and the first cutting blade 705 and the second cutting blade 706 slide along the radial direction of the rotating ring 704. When the cutter 7 is in use, the wire is passed sequentially through the first third clamp 702, the inner hole 711 of the rotating ring 704, and the second third clamp 702. Then, the two third clamps 702 are driven to hold the wire and prevent it from rotating. By driving the first cutting blade 705 and the second cutting blade 706 to move closer to each other, a portion of the insulation layer of the wire is cut along the radial direction. Then, the rotating ring 704 is driven to rotate, causing the first cutting blade 705 and the second cutting blade 706 to cut the insulation layer along the circumference of the wire, thus dividing the insulation layer on the wire into two segments.

[0054] Furthermore, the rotating ring 704 is equipped with a first positioning plate 707 and a second positioning plate 708. Both the first positioning plate 707 and the second positioning plate 708 are arc plates and both have threaded holes. The first positioning plate 707 is threadedly connected to a first adjusting screw 709, and the second positioning plate 708 is threadedly connected to a second adjusting screw 710. The first cutting blade 705 is installed on the first adjusting screw 709, and the second cutting blade 706 is installed on the second adjusting screw 710. By rotating the first adjusting screw 709 and the second adjusting screw 710, the first cutting blade 705 and the second cutting blade 706 can be moved closer or further apart. The cutting distance of the first cutting blade 705 and the second cutting blade 706 can be adjusted according to the diameter of the wire.

[0055] Optionally, a first positioning plate 707 and a second positioning plate 708 are provided on one end face of the rotating ring 704, and a lever is provided on the other end face of the rotating ring 704. Thus, the rotating ring 704 is driven to rotate by the lever, so that the first cutting blade 705 and the second cutting blade 706 rotate around the circumference of the wire to cut the outer insulation layer of the wire.

[0056] In one embodiment, the worktable 1 is provided with a lead screw module 8, and the output end of the lead screw module 8 is connected to the force gauge 3 for transmission. The lead screw module 8 can drive the force gauge 3 to move up and down at a uniform speed.

[0057] Optionally, the centers of the multiple threading holes 501 are all located on the same circular trajectory. The multiple threading holes 501 are evenly spaced along this circular trajectory, which facilitates the rotation of the threading plate 5 so that the multiple threading holes 501 can be rotated between the first clamp 2 and the second clamp 4 respectively. The diameters of the multiple threading holes 501 increase or decrease sequentially, making the distribution of the threading holes 501 more regular and facilitating the selection of appropriate threading holes 501 for testing.

[0058] In one embodiment, the wire insulation layer wrapping force testing device further includes a handwheel 9 for driving the force gauge 3 to slide; the handwheel 9 is rotatably mounted on the force gauge 3. This application can also utilize the handwheel 9 to drive the force gauge 3 to move up and down. For example, a rack is provided on the workbench 1, and a gear that meshes with the rack is rotatably mounted on the force gauge 3. The gear is connected to the handwheel 9 in a transmission manner, and the handwheel 9 drives the gear to rotate, causing the force gauge 3 to move up and down along the rack.

[0059] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A device for testing the wrapping force of wire insulation layer, characterized in that, include: Workbench (1); The first clamp (2) is disposed on the workbench (1); Force gauge (3) is slidably mounted on the worktable (1); The second clamp (4) is installed on the force measuring end of the force measuring device (3); as well as The threading plate (5) is rotatably mounted on the force measuring device (3); The first clamp (2) and the second clamp (4) are arranged at intervals along the sliding direction of the force measuring device (3). The threading plate (5) is located between the first clamp (2) and the second clamp (4), forming a test channel between the first clamp (2) and the second clamp (4). The threading plate (5) is provided with a plurality of threading holes (501). The plurality of threading holes (501) are arranged at intervals circumferentially along the rotation axis of the threading plate (5). At least some of the threading holes (501) have different diameters. The test channel is located on the rotation path of the threading holes (501).

2. The wire insulation layer wrapping force testing device according to claim 1, characterized in that, Both the first clamp (2) and the second clamp (4) include a first clamping block (201), a second clamping block (202), a drive screw (203), and a spring (204); The first clamping block (201) and the second clamping block (202) of the first clamp (2) are both slidably mounted on the worktable (1). The first clamping block (201) and the second clamping block (202) of the second clamp (4) are both slidably mounted on the worktable (1). The spring (204) is sleeved on the drive screw (203) and located between the first clamping block (201) and the second clamping block (202). A clamping channel is formed between the first clamping block (201) and the second clamping block (202). The drive screw (203) is threadedly connected to the first clamping block (201) and the second clamping block (202) to drive the first clamping block (201) and the second clamping block (202) to move closer to each other or further away from each other.

3. The wire insulation layer wrapping force testing device according to claim 1, characterized in that, It also includes a wire cutter (6) installed on the workbench (1); the wire cutter (6) is used to cut wire.

4. The wire insulation layer wrapping force testing device according to claim 3, characterized in that, The wire cutter (6) includes a first base (601), a wire clamping plate (602) mounted on the first base (601), and a wire cutter (603) slidably mounted on the first base (601); the first base (601) is mounted on the workbench (1), and the first base (601) is provided with a plurality of scale strips spaced along the sliding path of the wire cutter (603).

5. The wire insulation layer wrapping force testing device according to claim 1, characterized in that, It also includes a cutter (7) installed on the workbench (1); the cutter (7) is used to divide the insulation layer on the wire into several segments.

6. The wire insulation layer wrapping force testing device according to claim 5, characterized in that, The cutter (7) includes a second base (701), a third clamp (702) mounted on the second base (701), a support base (703) mounted on the second base (701), a rotating ring (704) rotatably mounted on the support base (703), and a first cutting blade (705) and a second cutting blade (706); the second base (701) is mounted on the worktable (1), the rotating ring (704) has an inner hole (711), the rotation axis of the rotating ring (704) is located between the first cutting blade (705) and the second cutting blade (706), and the first cutting blade (705) and the second cutting blade (706) slide along the radial direction of the rotating ring (704).

7. The wire insulation layer wrapping force testing device according to claim 6, characterized in that, The rotating ring (704) is equipped with a first positioning plate (707) and a second positioning plate (708); the first positioning plate (707) is threadedly connected to a first adjusting screw (709), and the second positioning plate (708) is threadedly connected to a second adjusting screw (710); the first cutting blade (705) is installed on the first adjusting screw (709), and the second cutting blade (706) is installed on the second adjusting screw (710).

8. The wire insulation layer wrapping force testing device according to any one of claims 1 to 6, characterized in that, The workbench (1) is provided with a lead screw module (8), and the output end of the lead screw module (8) is connected to the force measuring device (3) for transmission.

9. The wire insulation layer wrapping force testing device according to any one of claims 1 to 6, characterized in that, The centers of the plurality of threading holes (501) are all located on the same circular trajectory, and the plurality of threading holes (501) are evenly spaced along the circular trajectory, with the diameter of the plurality of threading holes (501) increasing or decreasing sequentially.

10. The wire insulation layer wrapping force testing device according to any one of claims 1 to 6, characterized in that, It also includes a handwheel (9) for driving the force gauge (3) to slide; the handwheel (9) is rotatably mounted on the force gauge (3).

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