A contour scanning device for gear machining

Abstract

This invention discloses a contour scanning device for gear processing, including a contour scanning device body and an objective lens assembly, as well as a gear conveying mechanism. The gear conveying mechanism includes a conveying frame, a conveyor belt, and a gear conveying assembly. The gear conveying assembly includes a base, a turntable, and a gear positioning assembly. The turntable is rotatably mounted on the base, and a driving component for driving the turntable to rotate is also included. The outer wall of the objective lens assembly is provided with annular toothed groups, each group of annular toothed groups having a toothless area. Annular toothed belts are provided on a U-shaped frame, with multiple sets of annular toothed belts corresponding to the annular toothed groups. Each set of annular toothed belts meshes with one set of annular toothed groups. A roller assembly for spreading the annular toothed belts is provided on the U-shaped frame. Each gear conveying assembly is provided with a linkage component for driving the roller assembly and driving the annular toothed belt. An adjustment component is also provided on the gear conveying assembly. This invention can automatically switch between objective lenses of corresponding magnification when scanning and inspecting gears of different sizes, making operation convenient.

Description

Technical Field

[0001] This invention relates to the field of gear processing inspection, specifically to a profile scanning device for gear processing. Background Technology

[0002] A gear profile scanning device is a device used to inspect the profile of gears. Its main purpose is to detect whether the gears meet the standards and determine whether they are qualified.

[0003] When measuring gears, it is necessary to check the gear's module, pressure angle, number of teeth, tooth width, tooth tip, and tooth height parameters. During the inspection, different magnification objective lenses are usually switched according to the size of the gear for magnification inspection. However, in the existing gear inspection process, the operator often needs to observe the size of the gear and switch to the corresponding magnification objective lens for scanning, which is inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a contour scanning device for gear processing to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A contour scanning device for gear processing includes a contour scanning device body and an objective lens group rotatably disposed at the bottom of the contour scanning device body, and also includes a gear conveying mechanism, which includes a conveying frame, a conveyor belt and a gear conveying assembly.

[0007] Multiple sets of gear conveying assemblies are evenly arranged along the conveyor belt path. Each gear conveying assembly includes a base, a turntable, and a gear positioning assembly. The turntable is rotatably mounted on the base, and the conveying frame is located below the objective lens assembly and is equipped with a drive unit that drives the turntable to rotate.

[0008] The contour scanning device is fixed above the conveyor belt by a U-shaped frame spanning the conveyor frame. The outer wall of the objective lens group is provided with annular toothed groups, and multiple sets of annular toothed groups are provided along the height direction of the outer wall of the objective lens group. Each set of annular toothed groups has a toothless area. The U-shaped frame is provided with annular toothed belts, and multiple sets of annular toothed belts are provided corresponding to the annular toothed groups. Each set of annular toothed belts is meshed with one set of annular toothed groups. The U-shaped frame is provided with roller sets for spreading the annular toothed belts. Each gear conveying assembly is provided with a linkage component that drives the roller sets to drive the annular toothed belts. The gear conveying assembly is also provided with an adjustment component that drives the linkage component to drive the corresponding annular toothed belts according to the size of the gears. The corresponding annular toothed belt drives the objective lens group to automatically switch to the objective lens of the corresponding magnification for scanning and detection according to the size of the gears.

[0009] Preferably, the gear positioning assembly includes a base column, a centering component, and a connecting rod. Multiple sets of centering components are provided along the circumference of the turntable. The base column is slidably disposed in the center of the turntable. Each set of centering components is slidably disposed on the turntable radially. One end of the connecting rod is rotatably connected to the base column, and the other end is rotatably connected to the centering component. The base column slides down and pulls the connecting rod to move all the centering components radially inward toward the turntable.

[0010] Preferably, the turntable has a column hole in the middle for the base column to slide up and down, the inner wall of the column hole has a sliding groove, the outer wall of the base column has a sliding block that is slidably connected to the sliding groove, and the bottom inner wall of the sliding groove has a first spring, the top of the first spring being fixedly connected to the bottom of the sliding block.

[0011] Preferably, the front side of the U-shaped frame is provided with a front edge plate, and the bottom of the end of the front edge plate away from the U-shaped frame is provided with a stop block. The top of the base column is provided with a stop slope that abuts against the stop block. After the stop block abuts against the stop slope, it drives the base column to slide down and causes all the centering components to slide along the turntable to press the gears on the inside.

[0012] Preferably, the positioning component includes an inner side plate and an outer side plate, a second spring is provided between the inner side plate and the outer side plate, a sliding rod is provided at the bottom of the outer side plate, the end of the connecting rod away from the base column is rotatably connected to the bottom end of the sliding rod, the turntable is provided with a sliding rod groove for the sliding rod to slide, a limiting groove is provided on the inner wall of the sliding rod groove, and a limiting block is provided on the side wall of the sliding rod to form a sliding connection with the limiting groove.

[0013] Preferably, the roller assembly includes a first main fixed column and a second main fixed column. The first main fixed column is fixedly installed at the bottom of the U-shaped frame, and the second main fixed column is fixedly installed at the bottom of the front edge plate. The first main fixed column is provided with multiple sets of rotating bearings corresponding to the number of annular toothed belts. Multiple sets of annular sleeves are rotatably sleeved on the second main fixed column. The diameter of each set of annular sleeves increases sequentially and they are rotatably connected to each other through bearings. The axial dimension of each set of annular sleeves increases sequentially. Each set of annular sleeves has annular discs at both ends in the axial direction. A toothed ring is fixed on the outer wall of each set of rotating bearings. Each set of annular toothed belts is sleeved on the toothed discs on the upper side of a set of annular sleeves and the corresponding set of toothed rings. The linkage drives the toothed discs on the lower side of the annular sleeves to rotate, thereby driving the toothed discs on the upper side of the corresponding annular sleeves to rotate.

[0014] Preferably, the linkage includes a rack, the bottom of which is provided with a height adjustment rod, and the base is provided with an adjustment groove for the height adjustment rod to slide up and down. The height adjustment rod slides to different heights to make the rack mesh with different gear discs. The side wall of the adjustment groove is provided with a limiting sliding groove, and the side wall of the height adjustment rod is provided with a limiting plate that slides with the limiting sliding groove. A third spring is connected between the limiting plate and the inner wall of the top of the limiting sliding groove.

[0015] Preferably, the adjustment assembly includes a horizontal sliding plate and a height adjustment step. The base is provided with a horizontal sliding groove communicating with the height adjustment groove and a step groove for the height adjustment step to slide. The bottom end of the inner side plate is provided with an L-shaped plate. The end of the L-shaped plate away from the inner side plate is provided with a connector connected to the horizontal sliding plate. The height adjustment step slides with the inner side plate, causing the height adjustment rod to abut against the height adjustment steps of different heights, thereby adjusting the height position. The sliding rod is provided with a communicating groove for the L-shaped plate to pass through and connect to the horizontal sliding plate.

[0016] Preferably, a fourth spring is provided on the inner wall of the step groove, one end of the fourth spring is fixedly connected to the height adjustment step, the connecting part is an arc plate, and the top end face of the horizontal sliding plate is provided with an arc groove for the arc plate to rotate into.

[0017] Preferably, the driving components are a motor and a drive shaft fixed to the output end of the motor. The conveyor belts are provided in two sets and symmetrically arranged on both sides inside the frame. A gap is formed between the two conveyor belts. A fixing plate is provided inside the frame that runs through the inner side of the conveyor belt. The motor is fixed on the fixing plate. A straight plate is provided at the top of the drive shaft. The bottom of the base column extends to the bottom of the base. A straight groove that cooperates with the straight plate is provided at the bottom of the base column.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The outer wall of the objective lens assembly is provided with multiple sets of annular teeth, each set of annular teeth has a toothless area. Multiple sets of annular toothed belts are set on the U-shaped frame corresponding to the multiple sets of annular teeth. Each gear conveying assembly is provided with a linkage component that drives a set of annular toothed belts to rotate, thereby driving the corresponding set of annular teeth to rotate. The size of the gear on the corresponding gear conveying assembly can be scanned by the contour scanning device to make the corresponding annular teeth rotate. The rotation of the corresponding annular teeth will switch to the objective lens with the required magnification for scanning, realizing automatic switching.

[0020] Each gear conveying assembly is equipped with a centering component. After the gear is sleeved on the base column through the shaft hole and placed on the turntable, the abutment block abuts against the inclined surface of the base column and drives the base column to move down, which in turn drives the centering component to position the gear in the center position, which is convenient for the contour scanning device to scan.

[0021] The centering component includes an outer plate and an inner plate. A second spring is installed between the outer and inner plates, which allows the inner plate to move and be fixed in place according to the gears of different sizes. The inner plate can move a corresponding distance along the radial inner side of the turntable to center the gears. Moving the inner plate a different distance will cause the height adjustment step to slide a corresponding distance and move the rack to different heights, so that the rack meshes with the annular disc of the corresponding annular sleeve, and the corresponding annular toothed belt meshes with the corresponding annular toothed group. This enables the objective lens to be automatically switched according to the gear size, making operation convenient. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0025] Figure 3 This is another perspective view of the overall structure of the present invention;

[0026] Figure 4 This is a cross-sectional schematic diagram highlighting the second main fixing post, the annular sleeve, and the annular disc of the present invention;

[0027] Figure 5 This is a cross-sectional schematic diagram highlighting the annular tooth assembly of the present invention;

[0028] Figure 6 This is a schematic diagram highlighting the overall structure of the gear conveying assembly of the present invention;

[0029] Figure 7 This is an exploded view of the gear conveying assembly of the present invention;

[0030] Figure 8 This is an exploded view of the present invention highlighting the base column, turntable, and centering component;

[0031] Figure 9 This is a cross-sectional schematic diagram of the base of the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Contour scanning device body; 2. Objective lens group; 3. Conveyor frame; 4. Conveyor belt; 5. Gear conveyor assembly; 51. Base; 52. Turntable; 53. Gear positioning assembly; 531. Base column; 532. Centering component; 5321. Inner side plate; 5322. Outer side plate; 533. Connecting rod; 6. Second spring; 7. Slide rod; 8. Drive component; 81. Motor; 82. Drive shaft; 9. Straight plate; 10. Fixing plate; 11. U-shaped frame; 12. Front leading edge plate; 13. Abutment block; 14. Abutment inclined surface; 15. Annular gear assembly; 16. Toothless area; 17. Annular gear belt; 18. Roller assembly; 181. First main fixing column; 182. Second main fixing column; 19. Rotary bearing; 21. 21. Annular sleeve; 22. Annular disc; 23. Linkage component; 231. Rack; 232. Height adjustment rod; 24. Adjustment groove; 25. Limiting sliding groove; 26. Limiting plate; 27. Third spring; 28. Adjustment assembly; 281. Horizontal sliding plate; 282. Height adjustment step; 29. ​​Step groove; 30. Fourth spring; 31. L-shaped plate; 32. Arc plate; 33. Arc groove; 34. Connecting groove; 35. Horizontal sliding groove; 36. Column hole; 37. Sliding groove; 38. Sliding block; 39. First spring; 40. Sliding rod groove; 41. Limiting groove; 42. Limiting block; 43. Straight groove; 44. Disc hole; 45. Anti-slip layer; 46. Pressure plate; 47. Arc-shaped notch; 48. Hinge groove. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-9 The present invention provides a technical solution:

[0036] See Figure 1 The core of the contour scanning device for gear processing of the present invention is to achieve automatic switching of objective lens magnification and precise scanning during gear detection through the positioning adaptation and transmission linkage structure of the gear conveying mechanism. The whole device consists of contour scanning device body 1, objective lens group 2, gear conveying mechanism and matching adjustment components 28. All components work together to complete the efficient detection of gear contour.

[0037] See Figure 1 , 67, 8. The gear conveying mechanism is mainly used for the bearing and conveying of gears. The conveyor frame 3 is the overall support base. Two sets of conveyor belts 4 are symmetrically arranged on both sides inside the conveyor frame 3. A gap is formed between the two conveyor belts 4, so that the drive component 8 can drive the turntable 52 located directly above through the gap to rotate (the conveying of the conveyor belt 4 is driven by a rotary motor to drive the rotating shaft to rotate, and then drive the conveyor belt 4 sleeved on the rotating shaft to transmit power, which is the prior art). A fixing plate 10 is fixed inside the conveyor frame 3, passing through the inner side of the conveyor belt 4. The drive component 8 includes a motor 81 and a drive shaft 82 fixed to the output end of the motor 81. The motor 81 is fixed on the fixing plate 10. The top of the drive shaft 82 at the output end of the motor 81 is provided with a slot 9, which is adapted to the slot 43 at the bottom of the base column 531 in the gear conveying assembly 5. When the gear conveying assembly 5 moves to the bottom of the contour scanning device through the conveyor belt 4, the slot 43 at the bottom of the base column 531 will automatically enter the slot 9. The motor 81 drives the drive shaft 82 to rotate, which in turn drives the turntable 52 to rotate. Multiple gear conveying assemblies 5 are evenly distributed along the conveying path of the conveyor belt 4. The base 51 of each assembly is fixed to the conveyor belt 4. The bottom of the base 51 is provided with an arc-shaped notch 47 to prevent vibration during the transmission of the base 51 by the conveyor belt 4. The center of the base 51 is provided with a disc hole 44, and the turntable 52 is rotatably mounted in the disc hole 44 through a bearing. The center of the turntable 52 is provided with a column hole 36 for the base column 531 to slide up and down. The inner wall of the column hole 36 is provided with a sliding groove 37. The sliding block 38 on the outer wall of the base column 531 is embedded in the sliding groove 37 to form a sliding connection. A first spring 39 is fixedly connected between the bottom inner wall of the sliding groove 37 and the bottom of the sliding block 38 to provide an upward restoring force for the base column 531. Multiple sets of gear positioning components are arranged around the circumference of the turntable 52. Each set of positioning components includes an inner side plate 5321 and an outer side plate 5322. A second spring 6 is connected between the inner side plate 5321 and the outer side plate 5322. A slide rod 7 is integrally formed at the bottom of the outer side plate 5322. A slide rod groove 40 is correspondingly opened on the turntable 52 for the slide rod 7 to slide radially. A limiting groove 41 is provided on the inner wall of the slide rod groove 40. The limiting block 42 on the side wall of the slide rod 7 slides in cooperation with the limiting groove 41 to ensure that the slide rod 7 slides smoothly. A hinge groove 48 is provided at the lower end of the outer circumference of the base column 531. One end of the connecting rod 533 is rotatably connected in the hinge groove 48, and the other end is rotatably connected to the bottom end of the slide rod 7, forming a transmission connection between the base column 531 and the centering component 532.

[0038] See Figure 1-5The contour scanning device body 1 is fixed above the conveyor belt 4 by a U-shaped frame 11 spanning the conveyor frame 3. The objective lens group 2 is rotatably mounted on the bottom of the contour scanning device body 1. The objective lens group 2 can be switched to different magnifications by rotation, which is existing technology. Multiple sets of annular tooth groups 15 are arranged at intervals along the height direction on the outer wall of the objective lens group 2. Each set of annular tooth groups 15 has a toothless area 16 reserved for switching transition. The toothless areas 16 of each set of annular tooth groups 15 are staggered. Multiple sets of annular toothed belts 17 are provided on the U-shaped frame 11 corresponding to the number of annular tooth groups 15. Each set of annular toothed belts 17 is engaged with a set of annular tooth groups 15 to realize power transmission. After a set of annular toothed belts 17 drives and drives the annular tooth group 15 to rotate to the toothless area 16, the annular toothed belts 17 will not be able to drive the objective lens group 2 to rotate, so that the objective lens of the current magnification is in the gear scanning position. A roller assembly 18 for spreading the annular toothed belt 17 is installed on the U-shaped frame 11. The roller assembly 18 consists of a first main fixing column 181 and a second main fixing column 182. The first main fixing column 181 is fixedly installed at the bottom of the U-shaped frame 11, and multiple rotating bearings 19 are fixed on the outer wall of the first main fixing column 181 corresponding to the number of annular toothed belts 17. The second main fixing column 182 is fixedly installed at the bottom of the front edge plate 12 on the front side of the U-shaped frame 11, and multiple sets of annular sleeves 21 are rotatably sleeved on its outer wall. The diameter of each set of annular sleeves 21 increases sequentially, and the innermost annular sleeve 21 is rotatably mounted on the second main fixing column 182 through bearings. The annular sleeves 21, which are progressively larger, are successively fitted onto the adjacent inner annular sleeves 21 through bearings. They are isolated from each other by bearings. The axial dimension of the annular sleeves 21 also decreases synchronously with the diameter. Annular disks 22 are fixed at both ends of the axial direction of each set of annular sleeves 21. One end of the annular toothed belt 17 is fitted onto the annular disk 22 on the upper side of the annular sleeve 21, and the other end is fitted onto the toothed ring on the outer wall of the corresponding rotating bearing 19, forming a closed transmission structure. In order to make the transmission of the annular toothed belt 17 stable, teeth can be provided on the annular disk 22 and the rotating bearing 19. Teeth that mesh with the teeth can also be provided on the inner side of the annular toothed belt 17.

[0039] See Figure 1-9Each gear conveying assembly 5 is equipped with a linkage 23 that drives the roller shaft assembly 18. The bottom of the rack 231 of the linkage 23 is fixed with a height adjustment rod 232. The base 51 is provided with an adjustment groove 24 for the height adjustment rod 232 to slide up and down. The side wall of the adjustment groove 24 is provided with a limiting sliding groove 25. The limiting plate 26 on the side wall of the height adjustment rod 232 slides with the limiting sliding groove 25. A third spring 27 is connected between the limiting plate 26 and the top inner wall of the limiting sliding groove 25 to provide a downward pressing force for the height adjustment rod 232. The adjusting component 28 cooperates with the linkage 23 to achieve height adjustment. The base 51 has a horizontal sliding groove 35 that communicates with the height adjustment groove 24, and a step groove 29 for the height adjustment step 282 to slide. A fourth spring 30 is connected between the inner wall of the step groove 29 and the height adjustment step 282 to provide a restoring force for the height adjustment step 282. The bottom end of the inner side plate 5321 has an L-shaped plate 31. The end of the L-shaped plate 31 away from the inner side plate 5321 is connected to the horizontal sliding plate 281 through an arc plate 32 as a connector. The top end face of the horizontal sliding plate 281 has an arc groove 33 for the arc plate 32 to rotate into. The sliding rod 7 has a connecting groove 34. The L-shaped plate 31 passes through and is stably connected to the horizontal sliding plate 281, so that the sliding of the inner plate 5321 can synchronously drive the horizontal sliding plate 281 and the height adjustment step 282 to move. Through the cooperation of the arc groove 33 and the arc plate 32, when the motor 81 drives the base column 531 to rotate through the straight plate 9 and drives the turntable 52 to rotate, the L-shaped plate 31 can be separated from the horizontal sliding plate 281. After the turntable 52 continues to rotate and drives the gear to complete the detection, one end of the arc rod can be rotated into the arc groove 33 to connect with the horizontal sliding plate 281. It should be noted that the opening of the arc groove 33 can be made into a guide slope to facilitate the rotation of the arc plate 32.

[0040] See Figure 1-9A stop block 13 is fixed to the bottom of the front edge plate 12 on the front side of the U-shaped frame 11 away from the U-shaped frame 11. The top of the base column 531 is provided with a stop slope 14 that matches the stop block 13. When the gear is fitted onto the base column 531 through the shaft hole (a hole set in the middle of the gear for installation with the shaft) and placed on the turntable 52, the conveyor belt 4 drives the gear conveying assembly 5 to move below the stop block 13. The stop block 13 will abut against the stop slope 14 of the base column 531 and cause the base column 531 to move downward. The sliding block 38 compresses the first spring 39. The conveyor frame 3 is located in the conveyor belt. The conveyor belt 4 is equipped with a pressure plate 46 located below the abutment block 13. When the abutment block 13 presses down on the base column 531, the pressure plate 46 can provide support for the conveyor belt 4. During the downward movement of the base column 531, the connecting rod 533 pulls the slide bar 7 to move radially inward along the slide bar groove 40 towards the turntable 52, thereby driving the inner side plate 5321 and the outer side plate 5322 to move inward synchronously, thereby achieving clamping and centering positioning of the gear. The elasticity of the second spring 6 can adapt to the clamping requirements of gears of different sizes, ensuring that the gear is always in the center position of the turntable 52. Simultaneously, when the inner side plate 5321 moves, it drives the horizontal sliding plate 281 to slide along the horizontal sliding groove 35 through the L-shaped plate 31 and the arc-shaped plate 32. The horizontal sliding plate 281 pulls the height adjustment step 282 to move along the step groove 29, so that the bottom end of the height adjustment rod 232 abuts against the height adjustment step 282 at different heights, thereby adjusting the height position of the rack 231, so that the rack 231 meshes with the annular disk 22 on the lower side of the corresponding annular sleeve 21. The gear conveying assembly 5 continues to move and drives the annular disk 22 to rotate through the rack 231, which drives the annular toothed belt 17 connected to the annular disk 22 on the upper side of the annular sleeve 21 to drive the transmission. Then, through the cooperation of the annular toothed belt 17 and the annular toothed group 15, the transmission is further enhanced. The objective lens assembly 2 rotates until the annular toothed belt 17 engages with the toothless area 16 of the annular toothed belt 15. At this point, the annular toothed belt 17 will no longer be able to rotate the objective lens assembly 2. The objective lens being tested will be the one with the magnification required by the current gear, thus achieving automatic switching according to the gear size. The conveyor belt 4 continues to drive the gear conveyor assembly 5 to move. After the stop block 13 disengages from the base column 531, the base column 531 will be driven to move upward and reset under the action of the first spring 39. The inner side plate 5321 will reset to the initial position and disengage from the gear after the gear is aligned. The horizontal slide plate 281 will be reset by the fourth spring 30 following the height adjustment step 282. The conveyor belt 4 continues to drive the gear conveyor assembly 5 to move, so that the straight plate 9 enters the straight groove 43 at the bottom of the base column 531. At this time, the motor 81 starts, and the drive shaft 82 drives the turntable 52 to rotate through the cooperation of the straight plate 9 and the straight groove 43. During the rotation of the turntable 52, the gear will rotate so that the contour scanning device can scan and detect the teeth of the gear. Then the contour scanning device body 1 accurately scans and detects the parameters such as the module and pressure angle of the gear through the objective lens group 2. The top end face of the turntable 52 is provided with an anti-slip layer 45, which can increase the friction on the gear and prevent the gear from slipping when the turntable 52 drives the gear to rotate.After the inspection is completed, the conveyor belt 4 drives the gear conveyor assembly 5 away from below the objective lens group 2, completing one inspection cycle.

[0041] This device achieves automatic centering and positioning of gears of different sizes through precise connection and transmission of its components, and also automatically switches the objective lens magnification according to the gear size, without the need for manual intervention. This effectively improves the convenience and accuracy of gear contour inspection and meets the high-efficiency inspection needs of batch gears.

[0042] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A contour scanning device for gear machining, comprising a contour scanning device body (1) and an objective lens assembly (2) rotatably disposed at the bottom of the contour scanning device body (1), characterized in that: It also includes a gear conveying mechanism, which includes a conveyor frame (3), a conveyor belt (4), and a gear conveying assembly (5). Multiple sets of gear conveying components (5) are evenly arranged along the path of the conveyor belt (4). The gear conveying components (5) include a base (51), a turntable (52) and a gear positioning component (53). The turntable (52) is rotatably mounted on the base (51). The conveying frame (3) is located below the objective lens group (2) and is provided with a driving component (8) for driving the turntable (52) to rotate. The contour scanning device is fixed above the conveyor belt (4) by a U-shaped frame (11) spanning the conveyor frame (3). The outer wall of the objective lens group (2) is provided with annular toothed groups (15). Multiple sets of annular toothed groups (15) are provided along the height direction of the outer wall of the objective lens group (2). Each set of annular toothed groups (15) is provided with a toothless area (16). The U-shaped frame (11) is provided with annular toothed belts (17). Multiple sets of annular toothed belts (17) are provided corresponding to the annular toothed groups (15). Each set of annular toothed belts (17) is engaged with a set of annular toothed groups (15). The U-shaped frame (11) is provided with a roller group (18) for spreading the annular toothed belt (17). Each gear conveying assembly (5) is provided with a linkage (23) that drives the roller group (18) to drive and drive the annular toothed belt (17). The gear conveying assembly (5) is also provided with an adjustment component (28) that drives the linkage (23) to drive the corresponding annular toothed belt (17) according to the size of the gear. The corresponding annular toothed belt (17) drives the objective lens group (2) to automatically switch to the objective lens of the corresponding magnification according to the size of the gear for scanning and detection. Each set of annular toothed belts (17) is fitted onto the toothed disc on the upper side of a set of annular sleeves (21) and the corresponding set of toothed rings. The linkage (23) drives the toothed disc on the lower side of the annular sleeve (21) to rotate, thereby driving the toothed disc on the upper side of the corresponding annular sleeve (21) to rotate. The linkage (23) includes a rack (231), the bottom of which is provided with a height adjustment rod (232), and the base (51) is provided with an adjustment groove (24) for the height adjustment rod (232) to slide up and down. The height adjustment rod (232) slides to different heights so that the rack (231) meshes with different gear discs. The adjustment assembly (28) includes a horizontal sliding plate (281) and a height adjustment step (282). The base (51) is provided with a horizontal sliding groove (35) communicating with the height adjustment groove (24) and a step groove (29) for the height adjustment step (282) to slide. The bottom of the inner side plate (5321) is provided with an L-shaped plate (31). The end of the L-shaped plate (31) away from the inner side plate (5321) is provided with a connector connected to the horizontal sliding plate (281). The height adjustment step (282) slides with the inner side plate (5321) to make the height adjustment rod (232) abut against the height adjustment step (282) at different heights, thereby adjusting the height position. The sliding rod (7) is provided with a connecting groove (34) for the L-shaped plate (31) to pass through and connect to the horizontal sliding plate (281).

2. The contour scanning device for gear machining according to claim 1, characterized in that: The gear positioning assembly (53) includes a base column (531), a centering component (532), and a connecting rod (533). The centering component (532) is provided in multiple sets along the circumference of the turntable (52). The base column (531) is slidably disposed in the middle of the turntable (52). Each set of centering components (532) is slidably disposed on the turntable (52) radially. One end of the connecting rod (533) is rotatably connected to the base column (531), and the other end is rotatably connected to the centering component (532). The base column (531) slides down and pulls the connecting rod (533) downward to make all the centering components (532) move radially inward toward the turntable (52).

3. The contour scanning device for gear machining according to claim 2, characterized in that: The turntable (52) has a column hole (36) in the middle for the base column (531) to slide up and down. The inner wall of the column hole (36) is provided with a sliding groove (37). The outer wall of the base column (531) is provided with a sliding block (38) that is slidably connected to the sliding groove (37). The bottom inner wall of the sliding groove (37) is provided with a first spring (39). The top of the first spring (39) is fixedly connected to the bottom of the sliding block (38).

4. The contour scanning device for gear machining according to claim 3, characterized in that: The front edge plate (12) is provided on the front side of the U-shaped frame (11). The bottom of the front edge plate (12) away from the U-shaped frame (11) is provided with a stop block (13). The top of the base column (531) is provided with a stop slope (14) that abuts against the stop block (13). After the stop block (13) abuts against the stop slope (14), the base column (531) is driven to slide down and all the centering components (532) slide along the turntable (52) to press the gears on the inside.

5. A contour scanning device for gear machining according to claim 4, characterized in that: The centering component (532) includes an inner side plate (5321) and an outer side plate (5322). A second spring (6) is provided between the inner side plate (5321) and the outer side plate (5322). A sliding rod (7) is provided at the bottom of the outer side plate (5322). The end of the connecting rod (533) away from the base column (531) is rotatably connected to the bottom end of the sliding rod (7). A sliding rod groove (40) for sliding of the sliding rod (7) is provided on the turntable (52). A limiting groove (41) is provided on the inner wall of the sliding rod groove (40). A limiting block (42) is provided on the side wall of the sliding rod (7) and forms a sliding connection with the limiting groove (41).

6. A contour scanning device for gear machining according to claim 5, characterized in that: The roller assembly (18) includes a first main fixed column (181) and a second main fixed column (182). The first main fixed column (181) is fixedly installed at the bottom of the U-shaped frame (11), and the second main fixed column (182) is fixedly installed at the bottom of the front edge plate (12). The first main fixed column (181) is provided with multiple sets of rotating bearings (19) corresponding to the number of annular toothed belts (17). Multiple sets of annular sleeves (21) are rotatably sleeved on the second main fixed column (182). The diameter of each set of annular sleeves (21) increases sequentially and they are rotatably connected to each other through bearings. The axial dimension of each set of annular sleeves (21) increases sequentially. Both ends of each set of annular sleeves (21) are provided with annular discs (22) in the axial direction. A toothed ring is fixed on the outer wall of each set of rotating bearings (19).

7. A contour scanning device for gear machining according to claim 6, characterized in that: The side wall of the adjustment groove (24) is provided with a limiting sliding groove (25), and the side wall of the height adjustment rod (232) is provided with a limiting plate (26) that slides with the limiting sliding groove (25). A third spring (27) is connected between the limiting plate (26) and the top inner wall of the limiting sliding groove (25).

8. A contour scanning device for gear machining according to claim 7, characterized in that: The inner wall of the step groove (29) is provided with a fourth spring (30), one end of the fourth spring (30) is fixedly connected to the height adjustment step (282), the connecting part is an arc plate (32), and the top end face of the horizontal sliding plate (281) is provided with an arc groove (33) for the arc plate (32) to rotate into.

9. A contour scanning device for gear machining according to claim 2, characterized in that: The driving component (8) consists of a motor (81) and a drive shaft (82) fixed to the output end of the motor (81). The conveyor belt (4) is provided in two sets and symmetrically arranged on both sides inside the frame. A gap is formed between the two conveyor belts (4). A fixing plate (10) is provided inside the frame that runs through the inner side of the conveyor belt (4). The motor (81) is fixed on the fixing plate (10). A straight plate (9) is provided at the top of the drive shaft (82). The bottom of the base column (531) extends to the bottom of the base (51). A straight groove (43) that cooperates with the straight plate (9) is provided at the bottom of the base column (531).

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