Worm and gear cooperation detection device and method

Abstract

The application discloses a worm and gear cooperation detection device and method, relates to the technical field of worm and gear precision detection, and comprises a machining pedestal, a sliding machining plate and a fixed machining plate are arranged above the machining pedestal, a mounting rack is arranged above the fixed machining plate, a height adjusting assembly is arranged on the mounting rack, an inner support fixing assembly is arranged on the height adjusting assembly, and a workpiece one to be detected is arranged on the inner support fixing assembly; a jacking assembly and a clamping assembly are arranged above the sliding machining plate, a workpiece two to be detected is arranged between the jacking assembly and the clamping assembly, the workpiece two to be detected is arranged on a rotating support assembly, and the rotating support assembly is connected to the sliding machining plate. The worm and gear cooperation detection device and method can be adapted to worm workpiece two to be detected of various specifications and sizes, greatly improves the universality of the device, and reduces detection cost.

Description

Technical Field

[0001] This invention relates to the field of worm gear precision testing technology, and in particular to a worm gear mating testing device and method. Background Technology

[0002] Worm gear transmission mechanisms are commonly used speed reduction transmission components in mechanical transmission systems. They have advantages such as large transmission ratio, smooth operation, and good self-locking performance, and are widely used in various precision mechanical equipment. The fitting accuracy between the worm gear and the worm directly determines the transmission efficiency, operating noise, service life, and transmission stability of the entire transmission mechanism, and is a core indicator that must be strictly tested before the workpiece leaves the factory.

[0003] Currently, traditional worm gear and worm shaft mating inspections mostly rely on manual assembly and rotation, or simple tooling for auxiliary inspection. These methods have several drawbacks in practical applications: First, the workpiece fixing method is limited, making it difficult to achieve stable centering and clamping for worm gears and worm shafts with different inner and outer diameters. This can easily lead to workpiece displacement and wobbling during inspection, resulting in inaccurate test results. Second, existing inspection tooling has poor versatility; one tooling can only adapt to a single workpiece specification. For different models and sizes of worm gears and worm shafts, multiple sets of tooling need to be changed, increasing inspection costs and equipment space requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a worm gear engagement detection device and method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a worm gear mating detection device, including a processing table, a sliding processing plate and a fixed processing plate arranged above the processing table, a mounting frame arranged above the fixed processing plate, a height adjustment component arranged on the mounting frame, an inner support fixing component arranged on the height adjustment component, and a workpiece to be detected arranged on the inner support fixing component; A clamping assembly and a clamping assembly are provided above the sliding processing plate. A second workpiece to be inspected is provided between the clamping assembly and the clamping assembly. The second workpiece to be inspected is provided on a rotating support assembly, which is connected to the sliding processing plate. The sliding machining plate is connected to the machining table via a moving element; The clamping assembly and the holding assembly are respectively connected to the sliding processing plate via two moving elements.

[0006] Preferably, the height adjustment assembly includes an adjusting screw rotatably connected between the mounting bracket and the fixed processing plate, the adjusting screw being threadedly connected to a screw pair, and the front end of the screw pair being provided with a connecting platform; Both sides of the lead screw assembly are provided with support rods, and the ends of the support rods are provided with sliding sleeves. The sliding sleeves are slidably connected to the slide rods. The two ends of the slide rods are respectively fixedly connected to the mounting bracket and the fixed processing plate, and there are two slide rods. The top of the mounting bracket is provided with a rotating handle, which is fixedly connected to the end of the adjusting screw.

[0007] Preferably, the internal support fixing assembly includes a rotating sleeve connected to the connecting platform, a connecting column is provided inside the rotating sleeve, one end of the connecting column is rotatably connected to the rotating sleeve, the other end of the connecting column is fixedly connected to one side of the rear end plate, a hollow column is fixedly connected to the other side of the rear end plate, a transmission screw is provided inside the hollow column, one end of the transmission screw is rotatably connected to the hollow column, and the other end of the transmission screw passes through the hollow column and is fixedly connected to the front end plate; A second lead screw is threadedly connected to the transmission lead screw, and several sets of support plate units are provided between the lead screw and the hollow column.

[0008] Preferably, each set of the support plate unit includes an inner support plate, one end of which is hinged to one end of a long rod, and the other end of the long rod is hinged to the second lead screw assembly; The other end of the inner support plate is hinged to one end of two short rods, and the other ends of the two short rods are respectively connected to two connecting blocks, which are fixedly connected to the hollow column.

[0009] Preferably, the front end of the front end plate is provided with a cross-shaped protrusion.

[0010] Preferably, the clamping assembly includes a clamping seat disposed on one side of the sliding processing plate, and a ejector pin is rotatably connected to the clamping seat via a rotating component, the ejector pin being clamped against one end of the workpiece to be inspected.

[0011] Preferably, the clamping assembly includes a clamping seat disposed on the other side of the processing section, a rotating seat rotatably connected inside the clamping seat, and a second rotating handle disposed outside the clamping seat, the second rotating handle being fixedly connected to the rotating seat; The rotating seat is equipped with a driving component inside. The output end of the driving component is fixedly connected to a top head. The front end of the top head is fixedly connected to a centering and tightening rod. The centering and tightening rod is pressed against the other end of the workpiece to be tested. Two clamping plates are symmetrically arranged on both sides of the end of the rotating seat. A limiting sleeve is provided at the end of the two clamping plates away from the rotating seat. The limiting sleeve is passed through by the centering and tightening rod, and the limiting sleeve is in contact with the end of the workpiece to be tested. A clamping unit is also provided between the two clamping plates.

[0012] Preferably, the clamping unit includes two clamping plates, each of which is connected to the clamping plate via a rotating shaft. The clamping plate has a through hole through which the rotating shaft passes, and a torsion spring is provided on the rotating shaft, with the torsion spring located inside the through hole. One end of the clamping plate is provided with a roller, and the roller is in contact with the top head; The other end of the clamping plate is provided with a clamping part, and the inner side of the clamping part is provided with a protective layer.

[0013] Preferably, the rotating support assembly includes an arc-shaped seat disposed below the workpiece to be inspected, and the inner side of the arc-shaped seat is provided with a plurality of receiving grooves, each of which is provided with a ball bearing. The lower part of the arc-shaped seat is connected to the sliding processing plate via a support plate.

[0014] A method for detecting worm gear engagement includes the following steps: S1. Before testing, place the workpiece to be tested on the outside of the inner support plate, rotate the cross convex plate to drive the transmission screw to rotate, so that the second screw pair moves and pushes the inner support plate to extend radially. The inner support plate opens and tightens the inner hole of the workpiece to be tested, thus completing the fixing of the workpiece to be tested. S2. Place the workpiece to be tested on the arc-shaped seat, start the drive, drive the top head to extend, drive the centering and clamping rod to clamp one end of the workpiece to be tested, and cooperate with the ejector pin to complete the centering of both ends of the workpiece to be tested. At the same time, the top head squeezes the roller, so that the clamping plate clamps the outer wall of the workpiece to be tested. S3. Rotate the first rotating handle to adjust the height of the workpiece to be inspected, so that the center of the workpiece to be inspected is aligned with the center axis of the workpiece to be inspected. S4. The sliding processing plate is pushed to move towards the fixed processing plate by the first moving element, so that the second workpiece to be inspected and the first workpiece to be inspected are initially engaged. Then, the position of the clamping component and the holding component is finely adjusted by the second moving element to calibrate the engagement accuracy. S5. During testing, rotate the second rotary handle to rotate the workpiece to be tested. Observe the smoothness of rotation and the meshing clearance through the meshing transmission between the workpiece to be tested and the workpiece to be tested to determine whether the fitting accuracy meets the standard. S6. After the inspection is completed, reverse the operation of each component, loosen the workpiece, and remove it.

[0015] Therefore, the worm gear mating detection device and method described above have the following beneficial effects: (1) This device adopts an internal support type fixing structure for the workpiece to be tested. Through the radially telescopic support plate unit, it can be adapted to the inner hole of the worm gear with different inner diameters. The centering accuracy is high and it will not cause deformation of the outer wall of the workpiece.

[0016] (2) This device adopts a double fixing method of centering and clamping at both ends and side clamping for the workpiece to be tested. Combined with the bottom rotating support assembly, it is fixed firmly and rotates smoothly. One set of tooling can be adapted to workpieces of various specifications and sizes of worm gears, which greatly improves the versatility of the device and reduces the testing cost.

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a worm gear and worm gear mating detection device according to the present invention; Figure 2 This invention relates to a machining stand for a worm gear mating detection device; Figure 3 This is a schematic diagram of the height adjustment component of a worm gear engagement detection device according to the present invention; Figure 4 This is a schematic diagram of the internal support fixing component of a worm gear engagement detection device according to the present invention; Figure 5 This is a schematic diagram of the front end plate of a worm gear engagement detection device according to the present invention; Figure 6 This is a schematic diagram of the clamping assembly of a worm gear engagement detection device according to the present invention; Figure 7 This is a cross-sectional view of the clamping assembly of a worm gear engagement detection device according to the present invention; Figure 8 This is a schematic diagram of the arc-shaped seat of the worm gear mating detection device of the present invention; Reference numerals: 1. Machining table; 2. Sliding machining plate; 3. Fixed machining plate; 4. Mounting bracket; 5. Height adjustment assembly; 51. Adjusting screw; 52. Screw pair one; 53. Connecting table; 54. Support rod; 55. Sliding sleeve; 56. Sliding rod; 57. Rotating handle one; 6. Internal support fixing assembly; 61. Rotating sleeve; 62. Connecting column; 63. Rear end plate; 64. Hollow column; 65. Transmission screw; 66. Front end plate; 661. Cross-shaped convex plate; 67. Screw pair two; 681. Internal support plate; 682. Long rod; 683. Short rod; 684. Connecting block; 71 72. Top clamp; 8. Pin; 8. Clamping assembly; 81. Clamping seat; 82. Rotary seat; 83. Rotary handle II; 84. Drive component; 85. Top head; 86. Centering and clamping rod; 87. Clamping plate; 88. Limiting sleeve; 891. Clamping plate; 892. Rotating shaft; 893. Through port; 894. Torsion spring; 895. Roller; 896. Clamping part; 897. Protective layer; 9. Rotary support assembly; 91. Arc-shaped seat; 92. Ball bearing; 93. Support plate; 101. Moving element I; 102. Moving element II; 11. Workpiece I to be inspected; 12. Workpiece II to be inspected. Detailed Implementation

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Example Please see Figures 1-8This invention provides a worm gear meshing detection device, including a machining table 1. A sliding machining plate 2 and a fixed machining plate 3 are arranged on the upper part of the machining table 1. The fixed machining plate 3 is fixedly installed on one side of the upper end face of the machining table 1 by bolts. The sliding machining plate 2 is connected to the machining table 1 by a moving element 101 and can slide horizontally towards the fixed machining plate 3 along the width direction of the machining table 1. In this embodiment, the first moving element is a manual lead screw slide table. The sliding machining plate 2 is moved horizontally as a whole by the first moving element to complete the horizontal alignment and meshing distance adjustment of the worm gear and worm.

[0022] A mounting bracket 4 is provided above the fixed processing plate 3. The mounting bracket 4 adopts a portal frame structure. A height adjustment component 5 is provided on the mounting bracket 4, which can adjust the height according to the thickness of the workpiece 11 to be inspected. An inner support fixing component 6 is provided on the height adjustment component 5, and the workpiece 11 to be inspected is mounted on the inner support fixing component 6. The meshing center distance of the worm gear can be flexibly adjusted according to the different outer diameters of the workpiece 11. In this embodiment, the workpiece 11 to be inspected is a worm gear.

[0023] A clamping assembly and a holding assembly 8 are arranged above the sliding machining plate 2. A workpiece 12 to be inspected is placed between the clamping assembly and the holding assembly 8. In this embodiment, the workpiece 12 to be inspected is a worm gear, which is mounted on a rotating support assembly 9, which is connected to the sliding machining plate 2. The axial distance is changed according to the worm gear length to match worm gears of different lengths. By rotating the worm gear, the meshing accuracy of the worm wheel and worm gear is detected based on the change in the center distance between the worm wheel and worm gear.

[0024] The clamping assembly and the clamping assembly 8 are respectively connected to the sliding processing plate 2 via two moving elements 102. In this embodiment, the second moving element adopts a small manual slide rail. The horizontal position of the clamping assembly and the clamping assembly 8 can be adjusted separately by the second moving element to further fine-tune the coaxiality of the worm gear workpiece and ensure precise meshing with the worm wheel workpiece.

[0025] The height adjustment assembly 5 includes an adjusting screw 51 rotatably connected between the mounting frame 4 and the fixed processing plate 3 via a deep groove ball bearing. The adjusting screw 51 is threadedly connected to a screw pair 52, and a connecting platform 53 is welded to the front end of the screw pair 52. Support rods 54 are welded to both sides of the screw pair 52, and sliding sleeves 55 are welded to the ends of the support rods 54. The sliding sleeves 55 are slidably connected to sliding rods 56. The two ends of the sliding rods 56 are fixedly connected to the mounting frame 4 and the fixed processing plate 3, respectively. Two sliding rods 56 are arranged in parallel, forming a double-sided guide structure to prevent deflection during the lifting and lowering of the first screw pair, thus improving the stability and accuracy of height adjustment. A rotating handle 57 is provided on the top of the mounting frame 4. The rotating handle 57 is connected to the end of the adjusting screw 51 via a key. Rotating the first rotating handle drives the adjusting screw 51 to rotate, thereby adjusting the height of the first screw pair and the inner support fixing assembly 6, calibrating the center height of the worm gear, and keeping it flush with the central axis of the worm.

[0026] The internal support fixing assembly 6 includes a rotating sleeve 61 connected to the connecting platform 53. A connecting column 62 is coaxially connected inside the rotating sleeve 61. One end of the connecting column 62 is rotatably connected to the rotating sleeve 61 via a bearing, allowing free rotation of the connecting column 62 and the workpiece. This facilitates observation of the meshing effect by rotating the worm gear during testing. The other end of the connecting column 62 is welded to one side of the rear end plate 63. A hollow column 64 is welded to the other side of the rear end plate 63. A transmission screw 65 is installed inside the hollow column 64. One end of the transmission screw 65 is rotatably connected to the hollow column 64 via a bearing. The other end of the transmission screw 65 passes through the hollow column 64 and is fixedly connected to the front end plate 66. The protruding end of the transmission screw 65 and the hollow column 64 are also connected by a bearing. The transmission lead screw 65 is connected to the lead screw pair 67 by thread. Three sets of support plate units are set between the lead screw pair and the hollow column 64. The three sets of support plate units are evenly distributed in a ring around the outer periphery of the hollow column 64 to achieve uniform internal support for the inner hole of the worm gear workpiece and ensure centering accuracy.

[0027] Each support plate unit includes an inner support plate 681, which is radially arranged along the hollow column 64. One end of the inner support plate 681 is hinged to one end of a long rod 682, and the other end of the long rod 682 is hinged to a lead screw pair 67. The other end of the inner support plate 681 is hinged to one end of two short rods 683, and the other ends of the two short rods 683 are respectively connected to two connecting blocks 684, which are fixedly connected to the hollow column 64. A cross-shaped protrusion 661 is provided at the front end of the front end plate 66, which allows the operator to rotate the front end plate 66 with leverage. By rotating the front end plate 66, the transmission lead screw 65 is rotated, driving the second lead screw pair to move axially. The long rod 682 pushes and pulls the inner support plate 681, and with the limiting and guiding of the short rods 683, the inner support plate 681 can be radially extended and retracted along the hollow column 64, thereby adapting to the inner diameter of the worm gear and achieving stable inner support fixation.

[0028] The clamping assembly includes a clamping seat 71 disposed on one side of the sliding processing plate 2, and a pin 72 is rotatably connected to the clamping seat 71 via a bearing. The pin 72 clamps against one end of the workpiece 12 to be inspected.

[0029] The clamping assembly 8 includes a clamping seat 81 disposed on the other side of the machining section. A rotating seat 82 is rotatably connected to the inside of the clamping seat 81 via bearings. A second rotating handle 83 is disposed on the outside of the clamping seat 81. The second rotating handle 83 is connected to the rotating seat 82 via a key. Rotating the second rotating handle can drive the rotating seat 82 and the worm gear to rotate as a whole, allowing for direct inspection of the smoothness of the worm gear meshing rotation. A driving component 84 is disposed inside the rotating seat 82. In this embodiment, the driving component 84 is a telescopic cylinder or an electric push rod. A top head 85 is fixedly connected to the output end of the driving component 84. A centering and tightening rod 86 is fixedly connected to the front end of the top head 85, and the centering and tightening rod 86 is pressed against the other end of the workpiece 12 to be inspected. Two clamping plates 87 are symmetrically arranged on both sides of the end of the rotating seat 82. A limiting sleeve 88 is provided at the end of the two clamping plates 87 away from the rotating seat 82. The limiting sleeve 88 has a central hole. The centering and tightening rod 86 passes through the central hole of the limiting sleeve 88, and the end face of the limiting sleeve 88 contacts the outer side of the end of the worm gear workpiece, which plays an axial limiting role.

[0030] A clamping unit is also provided between the two clamping plates 87. The clamping unit includes two clamping plates 891, each of which is connected to the clamping plate 87 via a rotating shaft 892. Each clamping plate 891 has a through-hole 893 through which the rotating shaft 892 passes. A torsion spring 894 is mounted on the rotating shaft 892 and located within the through-hole, providing initial clamping force to the clamping plate 891. One end of each clamping plate 891 has a roller 895 that rolls against the outer wall of the mandrel 85, reducing frictional resistance during the extension and retraction of the mandrel 85. The other end of each clamping plate 891 has a clamping part 896, the inner side of which is provided with a protective layer 897 made of rubber to prevent scratching the outer wall of the worm gear workpiece during clamping and to increase clamping friction. The driving component 84 drives the top head 85 to extend and retract axially. The top head 85 presses the roller 895, driving the clamping plate 891 to rotate around the rotating shaft 892, thereby opening and clamping the clamping part 896. Together with the centering and tightening rod 86, it completes the double fixation of the worm gear workpiece.

[0031] The rotating support assembly 9 is fixedly connected to the upper end of the sliding machining plate 2 to provide auxiliary support for the bottom of the worm gear, reduce rotational resistance, and ensure smooth worm gear rotation. The rotating support assembly 9 includes an arc-shaped seat 91 positioned below the workpiece 12 to be inspected. Several receiving grooves are formed on the inner side of the arc-shaped seat 91, and each groove contains a ball bearing 92. The ball bearing 92 protrudes from the inner wall of the arc-shaped seat 91 and rolls in contact with the outer wall of the worm gear, significantly reducing frictional resistance during worm gear rotation and ensuring the accuracy of rotational detection. The lower part of the arc-shaped seat 91 is connected to the sliding machining plate 2 via a support plate 93.

[0032] A method for detecting worm gear engagement includes the following steps: S1. Before testing, first put the workpiece to be tested, 11, on the outside of the inner support plate 681. Rotate the cross convex plate 661 to drive the transmission screw 65 to rotate, so that the second screw pair moves and pushes the inner support plate 681 to extend radially. The inner support plate 681 opens and tightens the inner hole of the workpiece to be tested, thus completing the fixing of the workpiece to be tested, 11. S2. Place the workpiece 12 to be tested on the arc-shaped seat 91, start the drive component 84, drive the top head 85 to extend, drive the centering and clamping rod 86 to clamp one end of the workpiece 12 to be tested, and cooperate with the ejector pin 72 to complete the centering of both ends of the workpiece 12 to be tested. At the same time, the top head 85 squeezes the roller 895, so that the clamping plate 891 clamps the outer wall of the workpiece 12 to be tested. S3. Rotate the first rotary handle to adjust the height of the workpiece to be inspected 11 so that the center of the workpiece to be inspected 11 is aligned with the center axis of the workpiece to be inspected 12. S4. The sliding processing plate 2 is pushed to move towards the fixed processing plate 3 by the first moving element, so that the workpiece to be tested 12 and the workpiece to be tested 11 are initially engaged. Then, the position of the clamping assembly and the holding assembly 8 are finely adjusted by the second moving element to calibrate the engagement accuracy. S5. During the inspection, rotate the second rotary handle to drive the workpiece 12 to be inspected to rotate. Through the meshing transmission between the workpiece 11 and the workpiece 12 to be inspected, observe the smoothness of rotation and the meshing clearance to determine whether the fit accuracy meets the standard. S6. After the inspection is completed, reverse the operation of each component, loosen the workpiece, and remove it.

[0033] Therefore, the present invention employs the aforementioned worm gear and worm shaft mating detection device and method. For the workpiece to be tested, an internal support fixing structure is adopted, which uses a radially expandable support plate unit to adapt to the inner diameter of the worm gear, resulting in high centering accuracy and preventing deformation of the workpiece's outer wall. For the workpiece to be tested, a double fixing method is adopted, which uses centering and clamping at both ends and side clamping, combined with a bottom rotating support assembly, ensuring stable fixing and smooth rotation. One set of tooling can adapt to worm gear workpieces of various specifications and sizes, greatly improving the device's versatility and reducing detection costs.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A worm gear mating detection device, characterized in that: The system includes a processing table, a sliding processing plate and a fixed processing plate are provided above the processing table, a mounting frame is provided above the fixed processing plate, a height adjustment component is provided on the mounting frame, an internal support fixing component is provided on the height adjustment component, and a workpiece to be inspected is provided on the internal support fixing component. A clamping assembly and a clamping assembly are provided above the sliding processing plate. A second workpiece to be inspected is provided between the clamping assembly and the clamping assembly. The second workpiece to be inspected is provided on a rotating support assembly, which is connected to the sliding processing plate. The sliding machining plate is connected to the machining table via a moving element; The clamping assembly and the holding assembly are respectively connected to the sliding processing plate via two moving elements.

2. The worm gear mating detection device according to claim 1, characterized in that: The height adjustment assembly includes an adjusting screw rotatably connected between the mounting bracket and the fixed processing plate. The adjusting screw is threadedly connected to a screw pair, and a connecting platform is provided at the front end of the screw pair. Both sides of the lead screw assembly are provided with support rods, and the ends of the support rods are provided with sliding sleeves. The sliding sleeves are slidably connected to the slide rods. The two ends of the slide rods are respectively fixedly connected to the mounting bracket and the fixed processing plate, and there are two slide rods. The top of the mounting bracket is provided with a rotating handle, which is fixedly connected to the end of the adjusting screw.

3. The worm gear mating detection device according to claim 2, characterized in that: The internal support fixing assembly includes a rotating sleeve connected to the connecting platform. A connecting column is provided inside the rotating sleeve. One end of the connecting column is rotatably connected to the rotating sleeve, and the other end of the connecting column is fixedly connected to one side of the rear end plate. A hollow column is fixedly connected to the other side of the rear end plate. A transmission screw is provided inside the hollow column. One end of the transmission screw is rotatably connected to the hollow column, and the other end of the transmission screw passes through the hollow column and is fixedly connected to the front end plate. A second lead screw is threadedly connected to the transmission lead screw, and several sets of support plate units are provided between the lead screw and the hollow column.

4. The worm gear mating detection device according to claim 3, characterized in that: Each of the support plate units includes an inner support plate, one end of which is hinged to one end of a long rod, and the other end of the long rod is hinged to the second lead screw assembly. The other end of the inner support plate is hinged to one end of two short rods, and the other ends of the two short rods are respectively connected to two connecting blocks, which are fixedly connected to the hollow column.

5. The worm gear mating detection device according to claim 4, characterized in that: The front end of the front end plate is provided with a cross-shaped protrusion.

6. The worm gear mating detection device according to claim 5, characterized in that: The clamping assembly includes a clamping seat disposed on one side of the sliding processing plate, and a ejector pin is rotatably connected to the clamping seat via a rotating component. The ejector pin is clamped to one end of the workpiece to be inspected.

7. The worm gear mating detection device according to claim 6, characterized in that: The clamping assembly includes a clamping seat disposed on the other side of the processing section, a rotating seat rotatably connected inside the clamping seat, and a second rotating handle disposed outside the clamping seat, the second rotating handle being fixedly connected to the rotating seat; The rotating seat is equipped with a driving component inside. The output end of the driving component is fixedly connected to a top head. The front end of the top head is fixedly connected to a centering and tightening rod. The centering and tightening rod is pressed against the other end of the workpiece to be tested. Two clamping plates are symmetrically arranged on both sides of the end of the rotating seat. A limiting sleeve is provided at the end of the two clamping plates away from the rotating seat. The limiting sleeve is passed through by the centering and tightening rod, and the limiting sleeve is in contact with the end of the workpiece to be tested. A clamping unit is also provided between the two clamping plates.

8. The worm gear mating detection device according to claim 7, characterized in that: The clamping unit includes two clamping plates, each of which is connected to the clamping plate via a rotating shaft. The clamping plate has a through hole through which the rotating shaft passes, and a torsion spring is provided on the rotating shaft, with the torsion spring located inside the through hole. One end of the clamping plate is provided with a roller, and the roller is in contact with the top head; The other end of the clamping plate is provided with a clamping part, and the inner side of the clamping part is provided with a protective layer.

9. The worm gear mating detection device according to claim 8, characterized in that: The rotating support assembly includes an arc-shaped seat disposed below the workpiece to be inspected, and the inner side of the arc-shaped seat is provided with a plurality of receiving grooves, each of which is provided with a ball bearing. The lower part of the arc-shaped seat is connected to the sliding processing plate via a support plate.

10. A method for using the worm gear and worm gear mating detection device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Before testing, place the workpiece to be tested on the outside of the inner support plate, rotate the cross convex plate to drive the transmission screw to rotate, so that the second screw pair moves and pushes the inner support plate to extend radially. The inner support plate opens and tightens the inner hole of the workpiece to be tested, thus completing the fixing of the workpiece to be tested. S2. Place the workpiece to be tested on the arc-shaped seat, start the drive, drive the top head to extend, drive the centering and clamping rod to clamp one end of the workpiece to be tested, and cooperate with the ejector pin to complete the centering of both ends of the workpiece to be tested. At the same time, the top head squeezes the roller, so that the clamping plate clamps the outer wall of the workpiece to be tested. S3. Rotate the first rotating handle to adjust the height of the workpiece to be inspected, so that the center of the workpiece to be inspected is aligned with the center axis of the workpiece to be inspected. S4. The sliding processing plate is pushed to move towards the fixed processing plate by the first moving element, so that the second workpiece to be inspected and the first workpiece to be inspected are initially engaged. Then, the position of the clamping component and the holding component is finely adjusted by the second moving element to calibrate the engagement accuracy. S5. During testing, rotate the second rotary handle to rotate the workpiece to be tested. Observe the smoothness of rotation and the meshing clearance through the meshing transmission between the workpiece to be tested and the workpiece to be tested to determine whether the fitting accuracy meets the standard. S6. After the inspection is completed, reverse the operation of each component, loosen the workpiece, and remove it.

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