Hollow shaft mounted worm gear surface tooth modification device for reduction motor

Abstract

This invention relates to the field of gear processing equipment, specifically to a device for finishing the tooth patterns on the surface of a worm gear with a hollow shaft mounting a gear reducer motor. The device includes a grinding table, a placement platform for placing the workpiece on the grinding table, a sliding platform with lifting function on one side of the placement platform, an adjusting component on the sliding platform, a variable component on the adjusting component, a grinding component on the side of the variable component, and a paste dispensing component on one side of the grinding component. This invention, through the operation of the variable component and the grinding component, can adapt to the complex tooth profile of the end face worm gear, achieving precise grinding and a stable grinding effect.

Description

Technical Field

[0001] This invention relates to the field of gear processing equipment, specifically to a device for trimming the tooth patterns on the surface of a worm gear with a hollow shaft mounting a geared motor. Background Technology

[0002] As a commonly used power transmission component in the field of mechanical transmission, the machining accuracy of the end face teeth of the turbine directly determines the meshing effect, transmission efficiency and service life of the turbine and its mating parts. It is widely used in various equipment such as automobiles, construction machinery, and precision instruments.

[0003] Currently, the grinding of teeth on end-face gear turbines is mostly done manually or with ordinary fixed-station grinding equipment. Manual grinding relies on the operator's experience and skill, which is not only labor-intensive and inefficient, but also makes it difficult to guarantee the tooth profile accuracy and surface roughness of the end-face teeth. It is prone to defects such as uneven tooth wear and tooth surface scratches, which cannot meet the processing requirements of high-precision end-face gear turbines. Ordinary fixed-station grinding equipment has fixed grinding component angles and trajectories, while the teeth of end-face gear turbines are distributed in a ring shape with complex tooth surface contours and varying tooth inclination angles at different positions. Differences in degree and tooth tip curvature mean that fixed grinding structures cannot adapt to the complex contours of the teeth, making it difficult to perform comprehensive and precise grinding on all surfaces of each tooth, which also leads to unstable grinding quality. In addition, in traditional grinding processes, grinding paste is mostly applied manually, making it difficult to control the amount applied, and the timing of application is not synchronized with the grinding rhythm, further affecting the grinding accuracy of the end face teeth and failing to meet the needs of large-scale, high-precision end face tooth turbine production in industrial settings. Therefore, there is an urgent need for a grinding device that can adapt to the complex tooth shape of end face tooth turbines, achieve precise grinding, and provide stable grinding results. Summary of the Invention

[0004] The purpose of this invention is to provide a device for finishing the surface tooth patterns of a worm gear mounted on a hollow shaft with a geared motor, thereby solving the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a device for finishing the surface tooth patterns of a worm gear mounted on a hollow shaft with a geared motor, comprising a grinding table, a placement platform for placing a workpiece on the grinding table, a sliding platform with a lifting function on one side of the placement platform, an adjusting component on the sliding platform, a changing component on the adjusting component, a grinding component on the side of the changing component, and a paste dispensing component on one side of the grinding component.

[0005] Preferably, the adjustment assembly includes a slide groove disposed on the side end of the sliding table, with symmetrically arranged sliding seats in the slide groove and slidingly engaged with the slide groove. The two sliding seats are threadedly engaged with drive threaded rods, which have symmetrically arranged threads. The end of the drive threaded rod is rotatably connected to the side end of the fixed frame, the side end of the fixed frame is connected to the side end of the sliding table, and the other end of the drive threaded rod is connected to the end of the drive handle.

[0006] Preferably, the variable component includes a base disposed on the side end of the sliding seat, the two bases being symmetrically arranged, and two semi-circular connecting grooves being symmetrically opened on the side end of the base. A semi-circular adapting seat is rotatably connected in each of the semi-circular connecting grooves. A force-bearing connecting groove is symmetrically opened on the semi-circular adapting seat, and a progressive adapting seat is rotatably connected in each of the force-bearing connecting grooves. Two contact arc-shaped grooves are opened on the side end of the progressive adapting seat, and a contact arc-shaped component for abutting the workpiece surface is rotatably connected in each of the contact arc-shaped grooves.

[0007] Preferably, each of the abutting arc-shaped components is connected to an arc-shaped limiting seat at its top, and the side end of the arc-shaped limiting seat is provided with a rolling groove. The arc-shaped limiting seats on the two bases are combined in pairs to form a continuous rolling slide through the rolling groove.

[0008] Preferably, the polishing assembly includes a polishing frame disposed between two arc-shaped limiting seats. The top of the polishing frame is connected to the bottom of a connecting rod, and the other end of the connecting rod is connected to an annular frame. The annular frame is hollow, and a receiving frame is provided below the annular frame. The side end of the receiving frame is connected to the side end of a sliding table. A drive disk is rotatably connected to the receiving frame. A drive rod is provided on the top of the drive disk. The top of the drive rod is embedded in the annular frame and slides with it. A drive motor is provided at the bottom of the receiving frame, and the output end of the drive motor is connected to the center of the drive disk.

[0009] Preferably, the grinding frame is symmetrically provided with connecting frames below it. The connecting frames are rotatably connected to the grinding frame. Rolling wheels are rotatably connected to both ends of the connecting frames. Each rolling wheel is located in an adjacent rolling groove. The rolling wheels and the rolling grooves are in rolling engagement. One of the connecting frames is slidably fitted with symmetrically arranged L-shaped frames at its top. One of the L-shaped frames has a locking rod in the middle of one side of its top. The locking rod is slidably disposed in the locking groove at the top side of the other L-shaped frame. The end of the locking rod is movably connected to the inner wall of the locking groove through a telescopic spring. Reinforcing rods are symmetrically provided on both sides of the locking groove. Two reinforcing rods are slidably disposed in the limiting grooves on both sides of the locking rod. The end of the reinforcing rod is movably connected to the inner wall of the limiting groove through a telescopic spring.

[0010] Preferably, the bottom of the top of the L-shaped frame is provided with a detachable first grinding component, and the two L-shaped frames are rotatably connected to an arc-shaped seat on the side close to each other, and the two arc-shaped seats are provided with a detachable second grinding component on the side adjacent to each other.

[0011] Preferably, the paste dispensing assembly includes L-shaped support frames symmetrically arranged at the bottom of another connecting frame. Each L-shaped support frame has a dispensing tube on the inner wall of an adjacent side. One end of the dispensing tube is located below the L-shaped support frame, and one end of the dispensing tube communicates with the inside of a sleeve containing polishing paste. The sleeve is vertically arranged at the center of the top of the two L-shaped support frames. The side end of the sleeve is connected to the L-shaped support frame. A piston is slidably fitted on the top of the sleeve. A trigger rod is provided on one side of the top of the piston. The other end of the trigger rod passes through a mating groove on the L-shaped support frame and slidably fits the side end of an adjacent arc-shaped limiting seat. The trigger rod and the mating groove slide vertically. The bottom of the trigger rod is movably connected to the bottom of the mating groove through a spring telescopic rod. One side end of one of the arc-shaped limiting seats on each progressive adaptation seat is provided with a wedge-shaped element that mates with the trigger rod. The two sides of the trigger rod are arc-shaped. When the trigger rod passes through the wedge-shaped element, it can drive the piston to move downward inside the sleeve.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] In this invention, the device uses the coordination of the adjustment component and the variable component. The variable component can adaptively deform according to the tooth surface profile and tooth tilt angle of the end face tooth turbine, forming a motion trajectory that is completely consistent with the grinding area. This solves the problem that the traditional fixed grinding structure cannot adapt to complex tooth shapes and the grinding is incomplete. It can accurately grind each surface of the end face tooth, effectively ensuring tooth shape accuracy and surface roughness.

[0014] In this invention, the device realizes semi-automatic operation of end face tooth grinding. The lifting and moving of the sliding table can quickly adjust the grinding position. The adjustment component and the changing component automatically adapt to the tooth shape, eliminating the need for repeated manual adjustment of the grinding angle and position, greatly reducing the labor intensity of operators, and avoiding the precision error caused by manual grinding, ensuring consistent end face tooth turbine grinding quality in batch production.

[0015] In this invention, the device operates synchronously with the polishing component, which can precisely spray polishing paste according to the polishing rhythm, ensuring the polishing effect while effectively controlling the amount of polishing paste used, reducing waste and lowering production costs.

[0016] In this invention, burrs and defects on the end face tooth surface can be effectively eliminated through precise grinding, making the tooth surface smooth and the tooth shape regular, improving the meshing accuracy between the turbine and the mating parts, reducing wear during transmission, thereby extending the service life of the end face tooth turbine and improving its transmission stability and reliability.

[0017] In this invention, each component of the device has a clear division of labor and smooth linkage. The operator only needs to place and fix the workpiece, and the subsequent grinding process can be completed automatically by the control components. The operation is simple and easy to understand, requiring no professional grinding experience, which makes it easy for front-line workers to get started quickly and adapts to the needs of large-scale industrial production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the partially exploded three-dimensional structure of the variable component in this invention;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the variable component in this invention;

[0023] Figure 6 This is a partial three-dimensional structural diagram of the present invention. Figure 3 ;

[0024] Figure 7 This is a partial three-dimensional structural diagram of the grinding component in this invention. Figure 1 ;

[0025] Figure 8 This is a cross-sectional view of the L-shaped frame in this invention;

[0026] Figure 9 This is a partial three-dimensional structural diagram of the grinding component in this invention. Figure 2 ;

[0027] Figure 10 This is a partial three-dimensional structural diagram of the ointment dispensing component in this invention;

[0028] Figure 11 This is a partial exploded three-dimensional structural diagram of the ointment dispensing component in this invention.

[0029] In the diagram: 1. Grinding table; 2. Placement table; 3. Sliding table; 4. Adjustment component; 41. Slide groove; 42. Sliding seat; 43. Drive threaded rod; 44. Fixing frame; 45. Drive handle; 5. Variation component; 51. Base; 52. Semi-circular connecting groove; 53. Semi-circular adapting seat; 54. Force-bearing connecting groove; 55. Progressive adapting seat; 56. Contact arc groove; 57. Abutting arc part; 58. Arc-shaped limiting seat; 59. Rolling groove; 60. Rolling slide; 7. Grinding component; 71. Grinding frame; 72. Connecting rod; 73. 74. Ring frame; 75. Receiving frame; 76. Drive disc; 77. Drive rod; 78. Drive motor; 79. Connecting frame; 80. Rolling wheel; 81. L-shaped frame; 82. Snap-fit ​​rod; 83. Snap-fit ​​groove; 84. Telescopic spring; 85. Reinforcing rod; 86. Limiting groove; 87. First grinding component; 88. Arc-shaped seat; 99. Second grinding component; 90. Paste dispensing assembly; 91. L-shaped support frame; 92. Dispensing tube; 93. Sleeve; 94. Piston component; 95. Trigger rod; 96. Mating groove; 97. Spring telescopic rod; 98. Wedge-shaped component. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1 to 11 The present invention provides a technical solution: a tooth pattern trimming device for a worm gear with a hollow shaft mounting geared motor, comprising a grinding table 1, a placement table 2 for placing workpieces on the grinding table 1, a sliding table 3 with lifting function on one side of the placement table 2, an adjustment component 4 on the sliding table 3, a change component 5 on the adjustment component 4, a grinding component 7 on the side of the change component 5, and a paste dispensing component 9 on one side of the grinding component 7.

[0032] In this embodiment, as Figures 1 to 5 As shown, the adjustment assembly 4 includes a slide groove 41 disposed on the side of the sliding table 3. Sliding seats 42 are symmetrically arranged in the slide groove 41 and slide in cooperation with the slide groove 41. Driving threaded rods 43 are threadedly engaged on the two sliding seats 42. The driving threaded rods 43 are provided with symmetrically arranged threads. The end of the driving threaded rod 43 is rotatably connected to the side of the fixed frame 44. The side of the fixed frame 44 is connected to the side of the sliding table 3. The other end of the driving threaded rod 43 is connected to the end of the driving handle 45.

[0033] The variable component 5 includes a base 51 disposed on the side of the sliding seat 42. The two bases 51 are symmetrically arranged. Two semi-circular connecting grooves 52 are symmetrically opened on the side of the base 51. A semi-circular adapting seat 53 is rotatably connected in each semi-circular connecting groove 52. A force-bearing connecting groove 54 is symmetrically opened on the semi-circular adapting seat 53. A progressive adapting seat 55 is rotatably connected in each force-bearing connecting groove 54. Two contact arc grooves 56 are opened on the side of the progressive adapting seat 55. A contact arc member 57 for abutting against the surface of the workpiece is rotatably connected in each contact arc groove 56.

[0034] Each of the abutting arc-shaped parts 57 is connected to an arc-shaped limiting seat 58 at its top. The side end of the arc-shaped limiting seat 58 is provided with a rolling groove 59. The arc-shaped limiting seats 58 on the two bases 51 are combined in pairs to form a continuous rolling slide 60 through the rolling groove 59.

[0035] In this embodiment, as Figures 2 to 11 As shown, the grinding assembly 7 includes a grinding frame 71, which is disposed between two arc-shaped limiting seats 58. The top of the grinding frame 71 is connected to the bottom of the connecting rod 72, and the other end of the connecting rod 72 is connected to the annular frame 73. The annular frame 73 is hollow, and a receiving frame 74 is provided below the annular frame 73. The side end of the receiving frame 74 is connected to the side end of the sliding table 3. A drive disk 75 is rotatably connected to the receiving frame 74. A drive rod 76 is provided on the top of the drive disk 75. The top of the drive rod 76 is embedded in the annular frame 73 and slides with it. A drive motor 77 is provided at the bottom of the receiving frame 74, and the output end of the drive motor 77 is connected to the center of the drive disk 75.

[0036] The grinding frame 71 is symmetrically provided with connecting frames 78, which are rotatably connected to the grinding frame 71. Rolling wheels 79 are rotatably connected to both ends of the connecting frame 78. Each rolling wheel 79 is located in an adjacent rolling groove 59, and the rolling wheel 79 and the rolling groove 59 are in rolling engagement. One of the connecting frames 78 is slidably fitted with symmetrically arranged L-shaped frames 80. One of the L-shaped frames 80 has a locking rod 81 in the middle of one side of its top. The locking rod 81 is slidably disposed in the locking groove 82 at the top side of the other L-shaped frame 80. The end of the locking rod 81 is movably connected to the inner wall of the locking groove 82 through a telescopic spring 83. Reinforcing rods 84 are symmetrically provided on both sides of the locking groove 82. The two reinforcing rods 84 are slidably disposed in the limiting grooves 85 on both sides of the locking rod 81. The end of the reinforcing rod 84 is movably connected to the inner wall of the limiting groove 85 through a telescopic spring 83.

[0037] The bottom of the top of the L-shaped frame 80 is provided with a detachable first grinding component 86, and an arc-shaped seat 87 is rotatably connected inside the two L-shaped frames 80 that are close to each other. A detachable second grinding component 88 is provided on the adjacent side of the two arc-shaped seats 87.

[0038] The paste dispensing assembly 9 includes L-shaped support frames 91 symmetrically arranged at the bottom of another connecting frame 78. Each L-shaped support frame 91 has a dispensing tube 92 located on the inner wall of an adjacent side. One end of the dispensing tube 92 is located below the L-shaped support frame 91, and one end of the dispensing tube 92 communicates with the inside of a sleeve 93 containing polishing paste. The sleeve 93 is vertically positioned at the center of the tops of the two L-shaped support frames 91. The side end of the sleeve 93 is connected to the L-shaped support frame 91. A piston 94 is slidably fitted onto the top of the sleeve 93, and a contact point is provided on one side of the top of the piston 94. The trigger rod 95 has one end that passes through the mating groove 96 on the L-shaped support frame 91 and slides into the side end of the adjacent arc-shaped limiting seat 58. The trigger rod 95 slides up and down with the mating groove 96. The bottom of the trigger rod 95 is movably connected to the bottom of the mating groove 96 through a spring telescopic rod 97. One of the arc-shaped limiting seats 58 on each of the progressive adaptation seats 55 has a wedge-shaped piece 98 on its side end that mates with the trigger rod 95. The two sides of the trigger rod 95 are arc-shaped. When the trigger rod 95 passes through the wedge-shaped piece 98, it can drive the piston to move down inside the sleeve 93.

[0039] The method of use and advantages of the present invention: The tooth groove dressing device for the worm gear surface of the hollow shaft mounted geared motor works as follows:

[0040] like Figures 1 to 11 As shown, the worker places and fixes the workpiece on the placement table 2, then drives the sliding table 3 to move, causing the changing component 5 to move above the area of ​​the workpiece to be repaired. Then, through the lifting function of the sliding table 3, the two bases 51 are positioned on both sides of the grinding position. Next, the drive handle 45 drives the drive threaded rod 43 to rotate, and under the limit of the slide groove 41, the two sliding seats 42 move closer to each other, which in turn moves the two bases 51 closer to each other. During the process of moving closer, the contact arc-shaped part 57 can adaptively deform according to the actual contour of the grinding position. The contact arc-shaped part 57 rotates through the contact arc-shaped groove 56, and under the combined action of the progressive adaptation seat 55, the force-bearing connecting seat, the semi-arc adaptation seat 53 and the semi-arc connecting groove 52, it fits against the side of the grinding area from multiple points, and simultaneously drives the arc-shaped limiting seat 58 to change, so that several rolling grooves 59 form a rolling slide 60 that matches the motion trajectory of the grinding area. This solves the problem that the traditional fixed grinding structure cannot adapt to complex tooth shapes and the grinding is not comprehensive. It can accurately grind each surface of the end face teeth, effectively ensuring tooth shape accuracy and surface roughness.

[0041] Then, the drive motor 77 is started to drive the drive disc 75 to rotate. With the cooperation of the drive rod 76 and the ring frame 73, the grinding frame 71 is driven to reciprocate through the connecting rod 72. During the movement, through the cooperation of the rolling wheel 79 and the rolling groove 59, the connecting frame 78 adaptively deflects and stops at the bottom of the grinding frame 71 under different trajectory states, so that the grinding frame 71 moves along the trajectory as a whole, thereby driving the first grinding part 86 and the second grinding part 88 to move synchronously. Through the set L-shaped frame 80, under the action of the locking rod 81 and the reinforcing rod 84, the second grinding part 88 is moved by the extension spring 83. The line position still provides adaptive resistance to ensure the polishing effect, and the arc seat 87 adapts to the curve change. The first polishing part 86 completes multi-directional polishing of the polishing position. During the polishing operation, whenever the trigger rod 95 passes the wedge part 98, under the action of the spring telescopic rod 97, the trigger rod 95 moves down along the mating groove 96. Then, through the cooperation of the piston part 94 and the sleeve 93, the polishing paste is ejected through the glue tube 92, thereby spraying polishing paste onto the polishing area. Thus, the polishing paste is sprayed precisely according to the polishing rhythm, which not only ensures the polishing effect, but also effectively controls the amount of polishing paste used, reduces waste, and lowers production costs.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tooth pattern trimming device for a worm gear mounted on a hollow shaft geared motor, comprising a grinding table (1), wherein the grinding table (1) is provided with a placement table (2) for placing workpieces, and a sliding table (3) with lifting function is provided on one side of the placement table (2). Its features are: The sliding table (3) is provided with an adjustment component (4), the adjustment component (4) is provided with a change component (5), the side end of the change component (5) is provided with a polishing component (7), and the side of the polishing component (7) is provided with a paste dispensing component (9).

2. The device for trimming the tooth pattern of the worm gear surface of a hollow shaft-mounted geared motor according to claim 1, characterized in that: The adjustment assembly (4) includes a slide groove (41) disposed on the side of the sliding table (3). The sliding groove (41) is symmetrically provided with sliding seats (42) and slides in cooperation with the sliding groove (41); The two sliding seats (42) are threaded with drive thread rods (43); The drive threaded rod (43) has symmetrically arranged threads, and the end of the drive threaded rod (43) is rotatably connected to the side end of the fixed frame (44). The side end of the fixed frame (44) is connected to the side end of the sliding table (3), and the other end of the drive threaded rod (43) is connected to the end of the drive handle (45).

3. The device for trimming the tooth pattern of the worm gear surface of a hollow shaft-mounted geared motor according to claim 2, characterized in that: The variable component (5) includes a base (51) disposed on the side of the sliding seat (42), and the two bases (51) are arranged symmetrically. The base (51) has two semi-circular connecting grooves (52) symmetrically opened on its side end, and a semi-circular adapting seat (53) is rotatably connected in each of the semi-circular connecting grooves (52). The semi-circular adaptation seat (53) is symmetrically provided with force-bearing connecting grooves (54), and each of the force-bearing connecting grooves (54) is rotatably connected with a progressive adaptation seat (55). The side end of the progressive adaptation seat (55) has two contact arc grooves (56). Each of the contact arc grooves (56) is rotatably connected to an abutting arc member (57) for abutting the workpiece surface.

4. The device for trimming the tooth pattern of the worm gear surface of a hollow shaft-mounted geared motor according to claim 3, characterized in that: Each of the abutting arc-shaped parts (57) is connected to an arc-shaped limiting seat (58) at its top. The side end of the arc-shaped limiting seat (58) is provided with a rolling groove (59). The arc-shaped limiting seats (58) on the two bases (51) are combined in pairs to form a continuous rolling slide (60) through the rolling groove (59).

5. The device for trimming the tooth pattern of the worm gear surface of a hollow shaft-mounted geared motor according to claim 4, characterized in that: The polishing assembly (7) includes a polishing frame (71) disposed between two arc-shaped limiting seats (58); The top of the grinding frame (71) is connected to the bottom of the connecting rod (72), and the other end of the connecting rod (72) is connected to the ring frame (73); The ring frame (73) is hollow, and a support frame (74) is provided below the ring frame (73). The side end of the receiving frame (74) is connected to the side end of the sliding table (3), and a drive disk (75) is rotatably connected to the receiving frame (74). The top of the drive disc (75) is provided with a drive rod (76), the top of the drive rod (76) is embedded in the ring frame (73) and slides therewith; The bottom of the receiving frame (74) is provided with a drive motor (77), and the output end of the drive motor (77) is connected to the center of the drive disk (75).

6. The device for trimming the tooth pattern of the worm gear surface of a hollow shaft-mounted geared motor according to claim 5, characterized in that: The grinding frame (71) is symmetrically provided with connecting frames (78) below it; The connecting frame (78) is rotatably connected to the grinding frame (71), and the two ends of the connecting frame (78) are rotatably connected to rolling wheels (79). Each of the rolling wheels (79) is located in an adjacent rolling groove (59), and the rolling wheels (79) and the rolling grooves (59) are in rolling engagement; One of the connecting frames (78) has a symmetrically arranged L-shaped frame (80) slidingly fitted on its top, and one of the L-shaped frames (80) has a snap-fit ​​rod (81) in the middle of one side of its top. The snap-fit ​​rod (81) is slidably disposed in the snap-fit ​​groove (82) at the top side of another L-shaped frame (80); The end of the snap-fit ​​rod (81) is movably connected to the inner wall of the snap-fit ​​groove (82) via a telescopic spring (83); The two sides of the snap-fit ​​groove (82) are symmetrically provided with reinforcing rods (84), and the two reinforcing rods (84) are slidably disposed in the limiting grooves (85) on both sides of the snap-fit ​​rod (81); The end of the reinforcing rod (84) is movably connected to the inner wall of the limiting groove (85) via a telescopic spring (83).

7. The device for trimming the tooth pattern of the worm gear surface of a hollow shaft-mounted geared motor according to claim 6, characterized in that: The bottom of the top of the L-shaped frame (80) is provided with a detachable first grinding component (86). An arc-shaped seat (87) is rotatably connected to the side of the two L-shaped frames (80) that are close to each other. The two arc-shaped seats (87) are provided with a detachable second grinding element (88) on the adjacent side.

8. The device for trimming the tooth pattern of the worm gear surface of a hollow shaft-mounted geared motor according to claim 6, characterized in that: The ointment dispensing assembly (9) includes an L-shaped support frame (91) symmetrically arranged at the bottom of another connecting frame (78). Each of the L-shaped support frames (91) has a glue outlet tube (92) on one side of its inner wall, with one end of the bottom of the glue outlet tube (92) located below the L-shaped support frame (91); One end of the top of the dispensing tube (92) is connected to the inside of the sleeve (93) containing the polishing paste, and the sleeve (93) is vertically set at the center of the top of the two L-shaped support frames (91); The side end of the sleeve (93) is connected to the L-shaped support frame (91), and the top of the sleeve (93) is slidably fitted with a piston (94). The piston (94) has a trigger rod (95) on one side of its top. The other end of the trigger rod (95) passes through the mating groove (96) on the L-shaped support frame (91) and slides into the side end of the adjacent arc-shaped limiting seat (58). The trigger rod (95) slides up and down with the mating groove (96), and the bottom of the trigger rod (95) is movably connected to the bottom of the mating groove (96) through a spring telescopic rod (97); Each of the progressive adaptation seats (55) has a wedge-shaped part (98) on one of the arc-shaped limiting seats (58) on its side end that cooperates with the trigger rod (95). The trigger rod (95) is arc-shaped on both sides. When the trigger rod (95) passes through the wedge (98), it can drive the piston to move down inside the sleeve (93).

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