Equipment for detecting screw thread of bolt

Abstract

The utility model provides a device for detecting a bolt thread, and belongs to the technical field of bolt processing. The rotary table of the rotary assembly is arranged on the table top of the detection table, the thread gauge is installed on the rotary table, meanwhile, the lifting assembly is installed on the table top and located beside the rotary table, and the limiting clamping assembly is installed on the lifting assembly and extends to the position above the rotary table. A to-be-detected bolt is installed through the limiting clamping assembly and height lifting is achieved, so that a screw of the to-be-detected bolt can move downwards to the thread gauge, the thread gauge is driven by the rotary table to rotate so as to achieve detection of an external thread on the screw, the thread passing requirement is met, manual participation is not needed, the detection efficiency is improved, and the labor burden is relieved; in addition, the device can adapt to the detection of bolts of different specifications by adjusting the rotating speed and the torque of the thread gauge, and is better in adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt processing, in particular to a device for detecting bolt threads. Background Art

[0002] As a connecting structure of mechanical structure, bolts can provide a stable and reliable connection state, and are easy to disassemble and assemble, providing convenience for maintenance and repair.

[0003] Currently, bolts on the market typically consist of a head and a screw, with the head typically having an internal or external hexagonal structure, and the screw having external threads. After processing, to ensure the quality of the bolt product, the industry typically uses a thread gauge to inspect the external threads on the screw. During inspection, the head of the bolt to be inspected is fixed by a clamping structure (such as a chuck, vise, etc.), and the screw of the bolt is exposed outside the clamping structure. The thread gauge is then manually taken and placed on the outside of the screw to perform a through-thread operation. The thread gauge is turned and the travel of the thread gauge is used to determine whether the external threads on the screw meet the processing standards, thereby achieving bolt inspection. Although the above structure can already meet the needs of bolt inspection, the entire inspection process requires manual loading and unloading of the bolt. In addition, during inspection, the thread rail needs to be manually twisted, that is, the inspection is performed using a manual through-thread method, which not only has low inspection efficiency but also increases the labor burden. In addition, in the manual threading method, there are differences in the force applied to the thread gauge, which leads to different rotation speeds and torques of the thread gauge when testing different bolts. As a result, the testing standards are affected by human factors, which is not conducive to batch testing of products and makes it difficult to ensure the uniformity of products in the same batch. Summary of the Invention

[0004] In response to the above-mentioned problems existing in the prior art, the present invention aims to provide a device for detecting bolt threads, wherein a rotating assembly is provided on the detection table, and a thread gauge is installed on the rotating assembly. At the same time, a lifting assembly is provided on the detection table and on one side of the thread gauge, and a limited clamping assembly is provided on the lifting assembly, and the limited clamping assembly is directly opposite the thread gauge in the vertical direction, so that after the bolt to be detected is placed on the limited clamping assembly, the lifting assembly is lowered and extended into the thread gauge, and the thread gauge is driven to rotate by the rotating assembly to realize the threading operation, and the rotation speed and torque of the thread gauge can be controlled by the rotating assembly to ensure that the detection of bolts in the same batch can be unified to avoid interference from human factors. In addition, no manual operation is required during the detection process, which improves the detection efficiency, reduces the labor burden, and better adapts to the detection needs of large-scale bolt products.

[0005] The specific technical solutions are as follows:

[0006] A device for detecting bolt threads has the following characteristics, comprising:

[0007] A testing table, the testing table having a surface;

[0008] The rotating assembly includes a turntable, which is rotatably mounted on the table, with the axial direction of the turntable arranged in the vertical direction, and the thread gauge is mounted on the turntable;

[0009] The lifting assembly includes a lifting drive and a mounting block. The lifting drive is vertically mounted on the table and located beside the turntable. The mounting block is fixed to the lifting shaft of the lifting drive.

[0010] The limit clamping assembly includes a fixed block, a supporting plate and a limit block, one end of the fixed block is installed on the mounting block, and the other end of the fixed block extends toward the top of the turntable. The supporting plate and the limit block are arranged in an up-and-down stacking manner and are both installed on the end of the fixed block extending toward the turntable. The supporting plate and the limit block are both detachably connected to the fixed block, and a notch is provided on the side of the supporting plate facing away from the fixed block, which is vertically opposite to the turntable. A limit opening is provided on the limit block which is opposite to the notch, and the mouth distance of the notch is smaller than the minimum size of the head of the bolt to be detected and larger than the maximum size of the screw. At the same time, the inner contour shape of the limit opening is consistent with the outer contour shape of one side of the head of the bolt to be detected.

[0011] In the above-mentioned device for detecting bolt threads, a slot is provided on one end of the fixing block extending toward the turntable and at its lower portion in a horizontal direction, and one end of the support plate mounted on the fixing block is inserted into the slot.

[0012] The above-mentioned device for detecting bolt threads, wherein a slot is provided on one end of the fixed block extending toward the turntable in the vertical direction and passing through the upper and lower end surfaces of the fixed block, and a protruding block is provided on one end of the limit block installed on the fixed block, and the block is inserted into the slot.

[0013] In the above-mentioned device for detecting bolt threads, the slot is a dovetail slot, and the clamping block is a triangular block that matches the slot.

[0014] In the above-mentioned device for detecting bolt threads, a positioning hole with one end connected to the slot is provided on the bottom surface of the fixing block, and a positioning screw is installed in the positioning hole and one end is pressed against the end of the support plate inserted into the slot.

[0015] In the above-mentioned device for detecting bolt threads, the lifting drive is a cylinder.

[0016] The above-mentioned device for detecting bolt threads, wherein a monitoring component is also provided on the table or lifting drive, the monitoring component includes a mounting bar, a plurality of detection sensors and a detection block, the mounting bar is arranged in a vertical direction and installed on the cylinder body of the table or lifting drive, the plurality of detection sensors are arranged at intervals on the mounting bar, and the detection block is installed on the mounting block and arranged toward the detection sensor.

[0017] In the above-mentioned device for detecting bolt threads, the rotating assembly also includes a rotating driver, which is installed on the detection table and located at the bottom of the table. The rotating shaft of the rotating driver passes through the table and is connected to the turntable.

[0018] In the above-mentioned device for detecting bolt threads, the rotary driver is a motor and is electrically connected to the controller.

[0019] In the above-mentioned device for detecting bolt threads, a plurality of spacers are provided between the thread gauge and the turntable.

[0020] The positive effects of the above technical solution are:

[0021] The above-mentioned equipment for detecting bolt threads is provided with a turntable on the table top of the detection table, and a lifting assembly is provided on the table top and on the side of the turntable. At the same time, a limit clamping assembly extending to the top of the turntable is provided on the lifting assembly. The thread gauge is installed on the turntable and the bolt to be detected is installed on the limit clamping assembly, and the head of the bolt to be detected is circumferentially limited by the limit clamping assembly, so that the lifting assembly can drive the screw of the bolt to be detected to move toward the thread gauge, and drive the thread gauge to rotate through the turntable to realize the threading operation of the bolt to be detected. Not only does it not require human participation in the detection process, thereby improving the detection efficiency and reducing the labor burden, but it can also limit the speed and torque of the thread gauge by controlling the turntable, ensuring that the detection of bolts in the same batch can be unified to avoid interference from human factors. In addition, it can also select appropriate speed and torque according to bolts of different specifications to adapt to the detection of bolts of different specifications. It has better adaptability and better meets the detection needs of large-scale bolt products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an embodiment of a device for detecting bolt threads according to the present utility model;

[0023] Figure 2 This is a schematic diagram of the installation of a lifting assembly and a position limiting clamping assembly from one perspective of a preferred embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the installation of the lifting assembly and the limiting clamping assembly from another perspective of a preferred embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the installation of a turntable and a thread gauge in a preferred embodiment of the present utility model.

[0026] In the accompanying drawings: 1. Inspection table; 11. Table; 2. Rotating assembly; 21. Turntable; 3. Thread gauge; 31. Outer sleeve seat; 32. Inner ring; 4. Lifting assembly; 41. Lifting drive; 42. Mounting block; 5. Limit clamping assembly; 51. Fixed block; 52. Support plate; 53. Limit block; 511. Slot; 512. Card slot; 513. Positioning hole; 521. Notch; 531. Limit opening; 532. Card block; 6. Pad. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments are combined with the attached Figure 1 To the attached Figure 4 The technical solution provided by the present invention is described in detail, but the following content is not intended to limit the present invention.

[0028] Figure 1 This is a structural diagram of an embodiment of a device for detecting bolt threads of the present utility model. Figure 1 As shown, the device for detecting bolt threads provided in this embodiment includes: a detection platform 1, a rotating component 2, a lifting component 4 and a limiting clamping component 5.

[0029] Specifically, the testing platform 1 is placed horizontally on the ground. The testing platform 1 has a table top 11. The table top 11 serves as a supporting structure for structures such as the rotating component 2 and the lifting component 4, and is also used as an operating console for the operator.

[0030] Specifically, the rotating assembly 2 includes a turntable 21. During installation, the turntable 21 is rotatably mounted on the table 11, allowing it to rotate on the table 11, thereby facilitating the subsequent rotation of the thread gauge 3 relative to the screw of the bolt to be inspected. During installation, the axial direction of the turntable 21 is arranged vertically, and the thread gauge 3 is mounted on the turntable 21. This ensures that the rotation axes of the turntable 21 and the thread gauge 3 align with the movement direction of the subsequently arranged lifting assembly 4, facilitating the subsequent placement of the thread gauge 3 on the screw of the bolt to be inspected.

[0031] Specifically, the lifting assembly 4 includes a lifting driver 41 and a mounting block 42. During installation, the lifting driver 41 is mounted vertically on the table 11, ensuring stable installation of the lifting driver 41 on the inspection table 1. Furthermore, the lifting driver 41 is located beside the turntable 21, preventing interference with the rotation of the turntable 21. Furthermore, the mounting block 42 is fixed to the lifting shaft of the lifting driver 41, allowing the lifting driver 41 to drive the mounting block 42 to move upward and downward, thus providing the conditions for subsequently driving the limiting clamping assembly 5 to move upward and downward in the vertical direction.

[0032] Figure 2 This is a schematic diagram of the installation of a lifting assembly and a position limiting clamping assembly from one perspective of a preferred embodiment of the present utility model; Figure 3 This is a schematic diagram of the installation of the lifting assembly and the limiting clamping assembly from another perspective of a preferred embodiment of the utility model. Figures 1 to 3 As shown, the limiting clamping assembly 5 includes a fixed block 51, a supporting plate 52, and a limiting block 53. During installation, one end of the fixed block 51 is mounted on the mounting block 42 so that the fixed block 51 can be raised and lowered in the vertical direction following the mounting block 42. At the same time, the other end of the fixed block 51 is extended toward the top of the turntable 21, and the supporting plate 52 and the limiting block 53 are arranged in a stacked manner and are both mounted on the end of the fixed block 51 extending toward the turntable 21. This allows the push plate and the limiting block 53 to be stably mounted on the fixed block 51 and to be raised and lowered in the vertical direction, thereby achieving the use requirement of moving the bolt to be inspected in the height direction when the thread is passed. In addition, the supporting plate 52 and the limiting block 53 are both detachably connected to the fixed block 51, so that the supporting plate 52 and the limiting block 53 can be adaptively replaced according to the different specifications of the bolt to be inspected, thereby adapting to the external thread inspection of bolts of different specifications, and the structure is more flexible and adaptable. In addition, a notch 521 is provided on the side of the support plate 52 facing away from the fixed block 51, which is vertically opposite to the turntable 21, so that the screw rod of the bolt to be inspected can pass through the notch 521 smoothly, providing conditions for the screw rod of the bolt to be inspected to be subsequently matched with the thread gauge 3 located below it to realize inspection. In addition, a limiting opening 531 is provided on the limiting block 53, which is opposite to the notch 521, and the mouth distance of the notch 521 is smaller than the minimum size of the head of the bolt to be tested and larger than the maximum size of the screw. At the same time, the inner contour shape of the limiting opening 531 is consistent with the outer contour shape of one side of the head of the bolt to be tested, so that when the head of the bolt to be tested is placed on the support plate 52 and the limiting block 53, the head of the bolt to be tested can be supported by the notch 521 and can be circumferentially limited by the limiting opening 531, so that the screw of the bolt to be tested can be suspended above the thread gauge 3 without falling, and at the same time, it can limit the rotation of the bolt to be tested relative to the thread gauge 3 during the threading process, ensuring that the threading process can be completed smoothly.

[0033] More specifically, a slot 511 is horizontally defined at the lower portion of the end of the fixed block 51 extending toward the turntable 21. During installation, the end of the support plate 52 mounted on the fixed block 51 is inserted into the slot 511. This slot 511 facilitates the installation of the support plate 52 on the fixed block 51, meeting the requirement for a detachable connection between the support plate 52 and the fixed block 51. Furthermore, the support plate 52 forms a supporting structure at the lower portion of the fixed block 51, thereby supporting the limit block 53 and preventing it from naturally falling.

[0034] More specifically, a slot 512 is vertically formed on the end of the fixing block 51 extending toward the turntable 21, extending through the upper and lower end surfaces of the fixing block 51. Meanwhile, a protruding block 532 is provided on the end of the limit block 53 mounted on the fixing block 51. During installation, the block 532 on the limit block 53 is snapped into the slot 512 on the fixing block 51, thereby achieving a snap connection between the limit block 53 and the fixing block 51. This makes assembly and disassembly more convenient, and allows easy replacement of the limit block 53 to accommodate the inspection requirements of bolts of different specifications. Furthermore, the support plate 52 forms a shield at the lower end notch of the slot 512, preventing the limit block 53 from naturally dislodging from the lower end notch of the slot 512 under the action of gravity, thereby providing a more reasonable structural design.

[0035] More specifically, the slot 512 on the fixed block 51 is preferably a dovetail groove structure. At the same time, the block 532 on the limit block 53 is preferably a triangular block that cooperates with the slot 512, which can not only meet the card connection requirements, but also realize multi-directional limitation in the horizontal plane, thereby improving the stability of the limit block 53 when installed on the fixed block 51.

[0036] More specifically, a positioning hole 513 is formed vertically upward on the bottom surface of the fixing block 51, one end of which is connected to the slot 511. At this time, a positioning screw is installed in the positioning hole 513. Moreover, after one end of the support plate 52 is inserted into the slot 511, one end of the positioning screw is pressed against the end of the support plate 52 inserted into the slot 511. The positioning screw temporarily fixes the end of the support plate 52 inserted into the slot 511, thereby improving the stability of the support plate 52 installed on the fixing block 51.

[0037] More specifically, the lifting driver 41 in the lifting assembly 4 is preferably a cylinder, which is not only easy to obtain the driving source and has a quick response, but also can quickly release the driving gas so that the lifting driver 41 can be used as a follower structure, thereby meeting the need for the screw to be driven by the thread gauge 3 to achieve lifting during the threading process, and the structural design is more reasonable.

[0038] More specifically, a monitoring component is also provided on the table 11 or the lifting drive 41, and the monitoring component can realize the monitoring of the height change of the bolt to be detected. At this time, the monitoring component includes a mounting bar, a plurality of detection sensors and a detection block. During installation, the mounting bar is arranged in the vertical direction and installed on the cylinder body of the table 11 or the lifting drive 41. At the same time, a plurality of detection sensors are arranged at intervals on the mounting bar, and the detection block is installed on the mounting block 42 and arranged toward the detection sensor. Preferably, the detection sensor is a photoelectric sensor, which can judge the height change of the bolt to be detected by detecting the position of the detection block relative to the detection sensor during use. It is worth pointing out that since the use of the detection sensor and the detection block is a conventional structure in the traditional limit structure and is widely used, its specific structure and working method will not be repeated here.

[0039] More specifically, the rotating assembly 2 including the turntable 21 also includes a rotary driver. At this time, the rotary driver is installed on the inspection table 1 and is located at the bottom of the table 11, realizing a hidden installation of the rotary driver. At the same time, the rotating shaft of the rotary driver is passed through the table 11 and connected to the turntable 21, so that the rotary driver can drive the turntable 21 to rotate on the table 11, thereby realizing the use requirement of driving the thread gauge 3 to rotate.

[0040] More specifically, the rotating driver of the rotating component 2 is preferably a motor, and the motor is electrically connected to the controller, and the speed and torque of the motor are controlled by the controller to meet the external thread detection requirements of bolts of different specifications, with better adaptability and more reasonable structural design.

[0041] Figure 4 This is a schematic diagram of the installation of a turntable and a thread gauge in a preferred embodiment of the present invention. Figure 1 and Figure 4As shown, a plurality of spacers 6 are provided between the thread gauge 3 and the turntable 21. The height of the thread gauge 3 can be adjusted by changing the number of spacers 6, thereby meeting the detection requirements of bolts of different specifications. Preferably, each spacer 6 is arranged in an annular structure, and the thickness of different spacers 6 is different. The height of the thread gauge 3 can be increased by adding spacers 6 of different thicknesses. At the same time, a space for avoiding when the screw is inserted is reserved through the center hole of the spacer 6, thereby adapting to the external thread detection of bolts of different lengths, with better adaptability. Preferably, a plurality of connecting holes are provided on the spacer 6 along its axial direction. When different spacers 6 are stacked, the connecting holes on the spacers 6 are aligned one by one, and the connecting bolts are sequentially passed through the aligned connecting holes and connected to the turntable 21, thereby achieving stable installation of a plurality of spacers 6 on the turntable 21. In addition, the thread gauge 3 also includes an outer sleeve 31 and an inner ring 32. The outer sleeve 31 is arranged in a barrel shape. The bottom of the barrel of the outer sleeve 31 is installed on the turntable 21 or the pad 6, and a number of matching holes that are opposite to the connecting holes are opened on the barrel bottom of the outer sleeve 31. The connecting bolts pass through the corresponding matching holes while installing the pad 6, thereby realizing the stable installation of the outer sleeve 31 on the turntable 21. The inner ring 32 is a notch 521 ring. The inner ring 32 is arranged in the barrel cavity of the outer sleeve 31. A number of locking holes are opened in a circular array on the barrel side wall of the outer sleeve 31. The locking screw is installed in the locking hole and one end extends into the barrel cavity and is tightened on the outer wall of the inner ring 32. The thread gauge 3 is arranged on the inner side of the inner ring 32. The inner ring 32 can be pushed by the locking screw, and the thread gauge 3 is clamped by the deformation of the inner ring 32, thereby realizing the stable installation of the thread gauge 3 on the turntable 21. In addition, thread gauges 3 of different specifications can be adapted by replacing inner rings 32 of different specifications, so as to meet the detection requirements of different bolts, with a more flexible structure and better adaptability.

[0042] The device for detecting bolt threads provided in this embodiment includes a detection table 1, a rotating component 2, a lifting component 4 and a limiting clamping component 5; a turntable 21 of the rotating component 2 is set on the table top 11 of the detection table 1, and the thread gauge 3 is installed on the turntable 21. At the same time, the lifting component 4 is installed on the table top 11 and is located next to the turntable 21, and the limiting clamping component 5 is installed on the lifting component 4 and extends above the turntable 21. The bolt to be detected is installed and the height is lifted and lowered by the limiting clamping component 5, so that the screw of the bolt to be detected can be moved down to the thread gauge 3, and the thread gauge 3 is driven to rotate by the turntable 21 to realize the detection of the external thread on the screw, meeting the requirements of the through thread, not only eliminating the need for manual participation, improving the detection efficiency, reducing the labor burden, but also maintaining the uniformity of the detection standard, avoiding interference from human factors, and improving the detection accuracy. In addition, the speed and torque of the thread gauge 3 can be adjusted to adapt to the detection of bolts of different specifications, and the adaptability is better.

[0043] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting bolt threads, characterized in that: include: A testing table, the testing table having a table surface; A rotating assembly, the rotating assembly comprising a turntable, the turntable being rotatably mounted on the table surface, the axial direction of the turntable being arranged in a vertical direction, and the thread gauge being mounted on the turntable; A lifting assembly, the lifting assembly comprising a lifting driver and a mounting block, the lifting driver being mounted vertically on the table and located beside the turntable, the mounting block being fixed to a lifting shaft of the lifting driver; The cam is fixedly mounted on a support plate and has a locking mechanism which allows the cam to lock the locking member against rotation with the support plate interposed between the locking member and the locking mechanism, the cam being secured to the locking member while the cam is secured to the support plate when the cam is locked.

2. The device for detecting bolt threads according to claim 1, characterized in that: A slot is provided on one end of the fixing block extending toward the turntable and at the lower portion thereof in a horizontal direction, and one end of the supporting plate mounted on the fixing block is inserted into the slot.

3. The device for detecting bolt threads according to claim 1, characterized in that: A slot is provided on one end of the fixed block extending toward the turntable in the vertical direction and passing through the upper and lower end surfaces of the fixed block. A protruding block is provided on one end of the limit block installed on the fixed block, and the block is inserted into the slot.

4. The device for detecting bolt threads according to claim 3, characterized in that: The clamping slot is a dovetail slot, and the clamping block is a triangular block matched with the clamping slot.

5. The device for detecting bolt threads according to claim 2, characterized in that: A positioning hole with one end communicating with the slot is provided on the bottom surface of the fixing block. A positioning screw is installed in the positioning hole and one end thereof is pressed tightly against the end of the support plate inserted into the slot.

6. The device for detecting bolt threads according to claim 1, characterized in that: The lifting driver is a cylinder.

7. The device for detecting bolt threads according to claim 1, characterized in that: A monitoring component is also provided on the table top or the lifting drive, and the monitoring component includes a mounting bar, a plurality of detection sensors and a detection block. The mounting bar is arranged in a vertical direction and is installed on the table top or the cylinder body of the lifting drive, and a plurality of the detection sensors are arranged at intervals on the mounting bar. The detection block is installed on the mounting block and arranged toward the detection sensor.

8. The device for detecting bolt threads according to claim 1, characterized in that: The rotating assembly further includes a rotating driver, which is mounted on the inspection table and located at the bottom of the table top. A rotating shaft of the rotating driver passes through the table top and is connected to the turntable.

9. The device for detecting bolt threads according to claim 8, characterized in that: The rotary driver is a motor and is electrically connected to the controller.

10. The device for detecting bolt threads according to claim 1, characterized in that: A plurality of spacers are arranged between the thread gauge and the turntable.

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