Thread quality verification device

Abstract

The utility model relates to the technical field of automobile parts quality detection, more specifically, relate to a thread quality confirmation device, it includes thread confirmation mechanism, the thread confirmation mechanism includes tap and rotation drive assembly, the tap with power output end connection of rotation drive assembly, the thread confirmation mechanism still includes linear drive assembly, rotation drive assembly with power output end connection of linear drive assembly, linear drive assembly is used for driving rotation drive assembly moves along the axis direction of tap, the utility model overcomes the deficiency that the thread quality is confirmed through artificial in prior art low efficiency, sets up linear drive assembly, utilizes linear drive assembly to drive rotation drive assembly to move, whether the nut thread has the exception through judging whether rotation drive assembly has moved to the setting position in setting time to confirm, compared with artificial manual operation confirmation, can improve thread confirmation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts quality inspection technology, and more specifically, to a thread quality verification device. Background Technology

[0002] Nut weld brackets are one of the key support structures of the vehicle body. Multiple nuts are welded to their surface to provide stable and reliable threaded connection points to support the assembly of subsequent components. The quality of the threads directly affects the smooth progress of assembly. Defects in the nuts themselves or weld slag splashing into the threaded holes during welding can lead to thread abnormalities, thereby causing assembly problems.

[0003] Currently, thread quality inspection mainly relies on manual operation: operators hold electric taps and screw them into nuts one by one, judging by touch and visual inspection whether the taps are screwed in smoothly, thus assessing whether the threads are qualified. This method has obvious limitations: manual operation is inefficient, making it difficult to meet the needs of continuous inspection of multiple nuts, and easily becoming a bottleneck in production cycle; at the same time, long-term repetitive work can easily lead to personnel fatigue, increasing the risk of missed inspections, and potentially allowing defective threads to flow into subsequent assembly stages, causing potential quality problems. Utility Model Content

[0004] To address the problem of low efficiency in manually verifying thread quality in the prior art, this invention provides a thread quality verification device that can replace manual verification and improve thread verification efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: A thread quality verification device includes a thread verification mechanism, which includes a tap and a rotary drive assembly. The tap is connected to the power output end of the rotary drive assembly. The thread verification mechanism further includes a linear drive assembly, which is connected to the power output end of the rotary drive assembly. The linear drive assembly is used to drive the rotary drive assembly to move along the axial direction of the tap.

[0006] Using the nut on the nut welding bracket as the inspection object, the above technical solution involves first fixing the nut welding bracket so that the tap is aligned with the threaded hole of the nut and contacts the entrance of the threaded hole. Then, the rotary drive assembly drives the tap to rotate at a set speed, while the linear drive assembly drives the rotary drive assembly to move at a set speed, thereby moving the tap and screwing it into the threaded hole of the nut. If the rotary drive assembly moves to the set position within the set time, it indicates that the tap has been successfully screwed in, thus confirming that there is no quality problem with the nut thread; if the rotary drive assembly does not reach the set position within the set time, it indicates that the tap is obstructed from screwing in, thus confirming that there is an abnormality in the nut thread.

[0007] Preferably, the thread verification mechanism further includes a first connector, an elastic element, and a guide element. The first connector is connected to the power output end of the rotary drive assembly. The guide element is slidably connected to the first connector along the axial direction of the tap. The guide element has an abutment portion. Both ends of the elastic element abut against the abutment portion and the first connector, respectively. The tap is connected to the end of the abutment portion away from the elastic element. After the nut welding bracket is fixed, the position of the nut is not absolutely precise. In reality, the placement position of the nut may have a certain axial deviation from the expected position. With the elastic element, even if the actual position of the nut is lower than expected, this error can be absorbed by the compression of the elastic element, ensuring that the tap always maintains a suitable relative positional relationship with the nut before being screwed into the nut thread hole, thus offsetting the influence of the nut's axial positional error on the thread verification result.

[0008] Preferably, the thread confirmation mechanism further includes a second connector, through which the first connector is connected to the power output end of the rotary drive assembly; the second connector is provided with a locking block, and the first connector is provided with a limiting slot, the locking block extending into the limiting slot and engaging with the limiting slot with a clearance fit. The placement position of the nut may deviate from the expected position not only axially but also in a plane perpendicular to the nut's axis. The clearance fit between the locking block and the limiting slot allows the first connector to wiggle relative to the second connector. Combined with the elastic element, the tap has a certain range of motion in three-dimensional space, thereby offsetting the spatial positional error of the nut and ensuring that the tap can be aligned with the threaded hole and smoothly screwed into it.

[0009] Preferably, the thread confirmation mechanism further includes a positioning pin, a first sealing ring, and a second sealing ring, both of which are sleeved on the outside of the positioning pin. The locking block has a third through hole, and the first connector has a first through hole and a second through hole. The first through hole communicates with the second through hole through the third through hole. The positioning pin passes through the first through hole, the third through hole, and the second through hole simultaneously. The outer ring of the first sealing ring abuts against the inner wall of the first through hole, and the outer ring of the second sealing ring abuts against the inner wall of the second through hole. The positioning pin, the first sealing ring, and the second sealing ring prevent the locking block from disengaging from the limiting slot while ensuring that the locking block can sway relative to the limiting slot.

[0010] Preferably, the end of the tap furthest from the rotary drive assembly is connected to a positioning rod that can extend into the threaded hole of the nut. Before the threaded portion of the tap contacts the threaded hole of the nut, the smaller diameter positioning rod can extend into the threaded hole of the nut first, thereby guiding the tap to the position of the threaded hole and preventing the tap from slipping and failing to screw in.

[0011] Preferably, the system also includes a base, and multiple thread verification mechanisms are provided and all are mounted on the base. Multiple nuts are typically welded onto the nut welding bracket, and the multiple thread verification mechanisms can perform thread verification on different nuts separately, thereby greatly improving thread verification efficiency.

[0012] Preferably, the system further includes several sets of clamping assemblies, all of which are disposed on the base. The clamping assemblies are used to clamp the nut welding bracket, stabilizing the nut welding bracket before the tap is screwed into the threaded hole of the nut, ensuring that the tap can be accurately and smoothly screwed into the threaded hole of the nut.

[0013] Preferably, each clamping assembly includes a mounting base, a first clamping jaw, a second clamping jaw, a first clamping drive assembly, and a second clamping drive assembly. The first clamping drive assembly is disposed on the mounting base and is used to drive the clamping end of the first clamping jaw to move closer to or away from the clamping end of the second clamping jaw. The second clamping drive assembly is disposed on the mounting base and is used to drive the clamping end of the second clamping jaw to move closer to or away from the clamping end of the first clamping jaw. It is understood that when the clamping ends of the first and second clamping jaws simultaneously contact the nut welding bracket, the nut welding bracket is clamped. Both the first and second clamping drive assemblies can be drive assemblies that output rotary motion or linear motion.

[0014] Preferably, the rotary drive assembly includes a rotary cylinder, and the linear drive assembly includes a first linear cylinder. The cylinder body of the rotary cylinder is connected to the power output end of the first linear cylinder. It is understood that the output torque of the rotary cylinder is proportional to the working air pressure. When the tap is normally screwed into the threaded hole of the nut, the torque and working air pressure of the rotary cylinder will remain at a stable, low level. When the tap encounters an abnormality (such as damaged threads or impurities), the resistance torque will increase sharply, causing the working air pressure of the rotary cylinder to increase. If the air pressure of the rotary cylinder reaches the set value within a set time but the rotary cylinder does not reach the set position, it indicates that there is a quality problem with the nut thread, preventing the rotary cylinder from continuing to move. The rotary cylinder and the first linear cylinder have relatively low cost, a compact and simple structure, which helps simplify the device structure, and their operation is relatively fast, which helps improve thread confirmation efficiency.

[0015] Preferably, the threaded confirmation mechanism further includes a positioning sensor, which is triggered when the rotary cylinder moves into position. The positioning sensor can be a magnetic switch located inside the cylinder body of the first linear cylinder. When the piston end of the piston rod of the first linear cylinder retracts or extends near the positioning sensor, it is triggered to confirm that the first linear cylinder has moved to the set position. If the cylinder body of the rotary cylinder is connected to the first linear cylinder via a linear guide slider assembly, the positioning sensor can also be a proximity switch located at the end position of the linear guide. When the slider slides relative to the linear guide to the end position of the linear guide, the slider triggers the positioning sensor. Of course, the positioning sensor can also be in other installation positions and in other forms, depending on actual considerations.

[0016] The beneficial effects of this utility model are: 1. Set up a linear drive component to drive the rotary drive component to move. By judging whether the rotary drive component has reached the set position within a set time, it can be confirmed whether there is any abnormality in the nut thread. Compared with manual operation, it can improve the efficiency of thread confirmation.

[0017] 2. The installation of elastic elements, guide elements, a first connector, and a second connector allows the tap to have a certain range of motion in three-dimensional space. This can compensate for the spatial positional error of the nut and ensure that the tap always maintains a suitable relative positional relationship with the nut before being screwed into the nut's threaded hole, thus avoiding the influence of the nut's positional error on the thread confirmation result.

[0018] 3. Multiple thread verification mechanisms are provided, which can verify the threads of nuts in different positions, greatly improving the efficiency of thread verification. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the thread confirmation mechanism; Figure 2 Schematic diagrams of the rotary drive assembly and the linear drive assembly; Figure 3 This is a structural schematic diagram of the second connector and guide component; Figure 4 This is a schematic diagram of the structure of the first connector; Figure 5 This is a schematic diagram showing the installation of the first and second sealing rings; Figure 6 A schematic diagram of a third embodiment of a thread quality verification device; Figure 7 This is a schematic diagram of the clamping assembly.

[0020] In the attached diagram: 1-tap; 2-rotary drive assembly; 3-linear drive assembly; 301-first linear cylinder; 302-first push block; 303-slider; 304-slide rail; 4-first connector; 401-limiting slot; 402-first through hole; 403-second through hole; 5-elastic element; 6-guide element; 601-abutment part; 7-second connector; 701-locking block; 702-third through hole; 8-first sealing ring; 9-second sealing ring; 10-positioning rod; 11-base; 12-clamping assembly; 1201-mounting seat; 1202-first gripper; 1203-second gripper; 1204-second linear cylinder; 1205-second push block; 1206-third linear cylinder; 1207-rocker; 13-nut; 14-positioning pin. Detailed Implementation

[0021] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1 This embodiment is a first embodiment of a thread quality verification device, such as... Figure 1 and Figure 2 As shown, it includes a thread confirmation mechanism, which includes a tap 1 and a rotary drive assembly 2. The tap 1 is connected to the power output end of the rotary drive assembly 2. The thread confirmation mechanism also includes a linear drive assembly 3, which is connected to the power output end of the rotary drive assembly 2. The linear drive assembly 3 is used to drive the rotary drive assembly 2 to move along the axial direction of the tap 1.

[0024] Furthermore, the rotary drive assembly 2 includes a rotary cylinder; the linear drive assembly 3 includes a first linear cylinder 301, a first push block 302, a slider 303, and a slide rail 304. The piston rod end of the first linear cylinder 301 is connected to the first push block 302. The cylinder body of the rotary cylinder is connected to the piston rod of the first linear cylinder 301 through the first push block 302. The slider 303 is connected to the cylinder body of the first linear cylinder 301. The slide rail 304 is connected to the first push block 302. The slide rail 304 and the slider 303 are slidably connected along the axial direction of the tap 1. It can be understood that the output torque of the rotary cylinder is proportional to the working air pressure. When the tap 1 is normally screwed into the threaded hole of the nut 13, the torque and working air pressure of the rotary cylinder will be maintained at a stable low level. When the tap 1 encounters an abnormality, such as broken threads or impurities, the resistance torque will increase sharply, causing the working air pressure of the rotary cylinder to increase. The rotary cylinder and the first linear cylinder 301 have relatively low cost, a compact and simple structure, which helps to simplify the device structure. Moreover, they operate quickly, which helps to improve the thread confirmation efficiency.

[0025] Furthermore, the threaded confirmation mechanism also includes a position sensor, which is triggered when the cylinder body of the rotary cylinder moves into position. The position sensor can be a magnetic switch located inside the cylinder body of the first linear cylinder 301. When the piston end of the piston rod of the first linear cylinder 301 retracts or extends close to the position sensor, it is triggered to confirm that the first linear cylinder 301 has moved to the set position. If the cylinder body of the rotary cylinder is connected to the first linear cylinder 301 via a linear guide slider assembly, the position sensor can also be a proximity switch located at the end position of the linear guide. When the slider slides relative to the linear guide to the end position of the linear guide, the slider triggers the position sensor. Of course, the position sensor can also be a sensor with other installation positions and other forms, which can be set according to actual considerations.

[0026] The working principle or workflow of this embodiment is as follows: Taking the nut 13 on the nut welding bracket as the inspection object, during implementation, the nut welding bracket is first fixed so that the tap 1 is aligned with the threaded hole of the nut 13 and contacts the entrance of the threaded hole. Then, the rotary drive assembly 2 drives the tap 1 to rotate at a set speed. At the same time, the first linear cylinder 301 drives the cylinder body of the rotary cylinder to move at a set speed, thereby moving the tap 1 so that the tap 1 is screwed into the threaded hole of the nut 13. Within a set time, if the air pressure of the rotary cylinder reaches the set value but the rotary cylinder does not reach the set position, it indicates that there is an abnormality in the thread of the nut 13, causing the tap 1 to be unable to continue to screw in; if the air pressure of the rotary cylinder reaches the set value and the rotary cylinder reaches the set position, it indicates that the tap 1 has been successfully screwed into place, thus confirming that there is no quality problem with the thread of the nut 13.

[0027] Example 2 This embodiment is a second embodiment of a thread quality verification device. This embodiment is similar to embodiment 1, except that it combines... Figures 1 to 5 As shown, the thread verification mechanism also includes a first connector 4, an elastic element 5, and a guide element 6. The first connector 4 is connected to the power output end of the rotary drive assembly 2. The guide element 6 is slidably connected to the first connector 4 along the axial direction of the tap 1. The guide element 6 is provided with an abutment portion 601. The elastic element 5 is a spring, which is sleeved on the outside of the guide element 6, and its two ends abut against the abutment portion 601 and the first connector 4, respectively. The tap 1 is connected to the end of the abutment portion 601 away from the elastic element 5. After the nut welding bracket is fixed, the position of the nut 13 is not absolutely precise. In fact, the placement position of the nut 13 may have a certain axial deviation from the expected position. After setting the elastic element 5, even if the actual position of the nut 13 is lower than expected, this error can be absorbed by the compression of the elastic element 5, so that the tap 1 always maintains a suitable relative positional relationship with the nut 13 before screwing into the threaded hole of the nut 13, eliminating the influence of the axial positional error of the nut 13 on the thread verification result.

[0028] Furthermore, the thread confirmation mechanism also includes a second connector 7, through which the first connector 4 is connected to the power output end of the rotary drive assembly 2. The second connector 7 has a locking block 701, and the first connector 4 has a limiting groove 401. The locking block 701 extends into the limiting groove 401 and engages with it with a clearance fit. Besides a certain axial deviation, the placement position of the nut 13 may also have a certain positional deviation in a plane perpendicular to the axial direction of the nut 13. The clearance fit between the locking block 701 and the limiting groove 401 allows the first connector 4 to wobble relative to the second connector 7. Combined with the elastic element 5, the tap 1 has a certain range of motion in three-dimensional space, thereby offsetting the spatial positional error of the nut 13 and ensuring that the tap 1 can be aligned with the threaded hole and smoothly screwed into it.

[0029] Specifically, both the locking block 701 and the limiting slot 401 are square. The cross-sectional dimensions of the locking block 701 are 12.5mm × 12.5mm, while the cross-sectional dimensions of the limiting slot 401 are 14mm × 14mm.

[0030] Furthermore, the thread confirmation mechanism also includes a positioning pin 14, a first sealing ring 8, and a second sealing ring 9, both of which are sleeved on the outside of the positioning pin 14. The locking block 701 has a third through hole 702, and the first connector 4 has a first through hole 402 and a second through hole 403. The first through hole 402 communicates with the second through hole 403 through the third through hole 702. The positioning pin 14 passes through the first through hole 402, the third through hole 702, and the second through hole 403 simultaneously. The outer ring of the first sealing ring 8 abuts against the inner wall of the first through hole 402, and the outer ring of the second sealing ring 9 abuts against the inner wall of the second through hole 403. The positioning pin 14, the first sealing ring 8, and the second sealing ring 9 ensure that the locking block 701 can move relative to the limiting slot 401 while preventing the locking block 701 from disengaging from the limiting slot 401.

[0031] Furthermore, the end of the tap 1 furthest from the rotary drive assembly 2 is connected to a positioning rod 10 that can extend into the threaded hole of the nut 13. Before the threaded portion of the tap 1 contacts the threaded hole of the nut 13, the smaller diameter positioning rod 10 can extend into the threaded hole of the nut 13 first, thereby guiding the tap 1 to the position of the threaded hole and preventing the tap 1 from slipping and failing to screw in.

[0032] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 1.

[0033] Example 3 This embodiment is the third embodiment, which is similar to embodiment 2, except that, as Figure 6 As shown, it also includes a base 11, and multiple thread verification mechanisms are provided, all of which are mounted on the base 11. Multiple nuts 13 are typically welded onto the nut welding bracket, and the multiple thread verification mechanisms can perform thread verification on different nuts 13 separately, thereby greatly improving thread verification efficiency.

[0034] Furthermore, it also includes a PLC controller (not shown in the figure), an operation display panel (not shown in the figure), and an audible and visual alarm (not shown in the figure). The position sensors, operation display panel, and audible and visual alarm are all connected to the PLC controller via signal transmission. After the thread confirmation step is completed, if at least one position sensor fails to detect the rotary cylinder in position, it sends a signal to the PLC controller. The PLC then sends signals to the audible and visual alarm and the operation display panel, causing the audible and visual alarm to flash a red light, while the operation display panel displays the specific position of the abnormal nut. If all position sensors detect the rotary cylinder in position, the audible and visual alarm flashes a green light, and the operation display panel displays the confirmation result.

[0035] Furthermore, it also includes multiple sets of clamping assemblies 12, all of which are mounted on the base 11. The clamping assemblies 12 are used to clamp the nut welding bracket, keeping the nut welding bracket stable before the tap 1 is screwed into the threaded hole of the nut 13, ensuring that the tap 1 can be screwed into the threaded hole of the nut 13 accurately and smoothly.

[0036] Furthermore, such as Figure 7 As shown, each clamping assembly 12 includes a mounting base 1201, a first clamping jaw 1202, a second clamping jaw 1203, a first clamping drive assembly, and a second clamping drive assembly. The first clamping drive assembly is disposed on the mounting base 1201 and is used to drive the clamping end of the first clamping jaw 1202 to move closer to or away from the clamping end of the second clamping jaw 1203. The second clamping drive assembly is disposed on the mounting base 1201 and is used to drive the clamping end of the second clamping jaw 1203 to move closer to or away from the clamping end of the first clamping jaw 1202. It can be understood that when the clamping ends of the first clamping jaw 1202 and the second clamping jaw 1203 are simultaneously in contact with the nut welding bracket, the nut welding bracket is clamped.

[0037] Specifically, the first clamping drive assembly includes a second linear cylinder 1204 and a second push block 1205. The second push block 1205 is slidably connected to the mounting base 1201. The cylinder body of the second linear cylinder 1204 is mounted on the mounting base 1201. The piston rod end of the second linear cylinder 1204 is connected to the second push block 1205. The first gripper 1202 is connected to the second push block 1205. The second clamping drive assembly includes a third linear cylinder 1206 and a rocker arm 1207. The rocker arm 1207 is rotatably connected to the second push block 1205. The piston rod end of the third linear cylinder 1206 is connected to one end of the rocker arm 1207. The second gripper 1203 is connected to the other end of the rocker arm 1207. When the piston rod of the first linear cylinder 301 extends or retracts, it drives the second push block 1205 to move, causing the clamping end of the first gripper 1202 to move away from or closer to the clamping end of the second gripper 1203; while when the piston rod of the second linear cylinder 1204 extends or retracts, it drives the rocker arm 1207 to rotate, thereby causing the clamping end of the second gripper 1203 to move away from or closer to the clamping end of the first gripper 1202.

[0038] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 2.

[0039] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description, and it is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A thread quality verification device, comprising a thread verification mechanism, the thread verification mechanism comprising a tap (1) and a rotary drive assembly (2), the tap (1) being connected to the power output end of the rotary drive assembly (2), characterized in that, The thread confirmation mechanism further includes a linear drive assembly (3), and the rotary drive assembly (2) is connected to the power output end of the linear drive assembly (3). The linear drive assembly (3) is used to drive the rotary drive assembly (2) to move along the axial direction of the tap (1).

2. The thread quality verification device according to claim 1, characterized in that, The thread confirmation mechanism further includes a first connector (4), an elastic element (5), and a guide (6). The first connector (4) is connected to the power output end of the rotary drive assembly (2). The guide (6) is slidably connected to the first connector (4) along the axial direction of the tap (1). The guide (6) is provided with an abutment portion (601). The two ends of the elastic element (5) abut against the abutment portion (601) and the first connector (4) respectively. The tap (1) is connected to the end of the abutment portion (601) away from the elastic element (5).

3. The thread quality verification device according to claim 2, characterized in that, The thread confirmation mechanism further includes a second connector (7), and the first connector (4) is connected to the power output end of the rotary drive assembly (2) through the second connector (7); the second connector (7) is provided with a locking block (701), and the first connector (4) is provided with a limiting slot (401), and the locking block (701) extends into the limiting slot (401) and is in clearance fit with the limiting slot (401).

4. The thread quality verification device according to claim 3, characterized in that, The thread confirmation mechanism further includes a positioning pin (14), a first sealing ring (8), and a second sealing ring (9). The first sealing ring (8) and the second sealing ring (9) are both sleeved on the outside of the positioning pin (14). The locking block (701) is provided with a third through hole (702). The first connector (4) is provided with a first through hole (402) and a second through hole (403). The first through hole (402) communicates with the second through hole (403) through the third through hole (702). The positioning pin (14) passes through the first through hole (402), the third through hole (702), and the second through hole (403) at the same time. The outer ring of the first sealing ring (8) abuts against the inner wall of the first through hole (402), and the outer ring of the second sealing ring (9) abuts against the inner wall of the second through hole (403).

5. A thread quality verification device according to claim 1, characterized in that, The tap (1) is connected to a positioning rod (10) that can extend into the threaded hole of the nut at one end away from the rotary drive assembly (2).

6. The thread quality verification device according to claim 1, characterized in that, It also includes a base (11), and the thread confirmation mechanism is provided in multiple parts and is disposed on the base (11).

7. A thread quality verification device according to claim 6, characterized in that, It also includes several sets of clamping components (12), all of which are disposed on the base (11).

8. A thread quality verification device according to claim 7, characterized in that, Each clamping assembly (12) includes a mounting base (1201), a first clamping jaw (1202), a second clamping jaw (1203), a first clamping drive assembly, and a second clamping drive assembly. The first clamping drive assembly is disposed on the mounting base (1201) and is used to drive the clamping end of the first clamping jaw (1202) to move closer to or away from the clamping end of the second clamping jaw (1203). The second clamping drive assembly is disposed on the mounting base (1201) and is used to drive the clamping end of the second clamping jaw (1203) to move closer to or away from the clamping end of the first clamping jaw (1202).

9. A thread quality verification device according to any one of claims 1 to 8, characterized in that, The rotary drive assembly (2) includes a rotary cylinder, and the linear drive assembly (3) includes a first linear cylinder (301), the cylinder body of which is connected to the power output end of the first linear cylinder (301).

10. A thread quality verification device according to claim 9, characterized in that, It also includes a positioning sensor that is triggered when the rotary cylinder moves into position.

Images