Worm gear, transmission component using worm gear and transmission component machining process

Abstract

The invention relates to a worm gear, a transmission component using the worm gear and a transmission component machining technology, and relates to the technical field of transmission components. The transmission component comprises a transmission shaft, one end of the transmission shaft is machined to form a worm, the other end of the transmission shaft is connected with the worm gear, worm gear teeth are evenly arranged on the outer circumferential surface of the worm gear at intervals, and a tooth groove is formed between every two adjacent worm gear teeth; the tooth groove is composed of a straight tooth groove part and an arc-shaped tooth groove part, the straight tooth groove part is tangent to the bottom of the arc-shaped tooth groove part, the straight tooth groove part extends and penetrates through the end face, close to the worm, of the worm gear, and the worm gear is arranged on the transmission shaft through plastic injection molding. The transmission component has the advantages that the integrity of the transmission component is better, the structural strength of the transmission component is improved, and the service life of the transmission component is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of transmission components, and in particular to a worm gear, a transmission component using the worm gear, and a transmission component processing technology. Background Art

[0002] Gearbox is an important component widely used in mechanical transmission. It consists of two or more gears. Some gearboxes contain a worm wheel and a worm. The worm gear structure is often used to transmit motion and power between two staggered axes. The worm wheel and worm are equivalent to the gear and rack in their middle plane, and the worm is similar in shape to the screw.

[0003] The gearbox includes a worm wheel, a worm and a transmission bearing. The worm wheel, the worm and the transmission bearing are all rotatably arranged in the gearbox. The worm wheel and the transmission bearing are coaxially fixed, and the worm wheel is meshed with the worm. However, in actual application, since the space for placing components in the gearbox is fixed and the components are installed in a certain order, the worm that matches the worm wheel is usually fixed with other components and is placed in the gearbox before the worm wheel. The worm wheel needs to be installed in the gearbox by means of insertion and meshed with the worm, but the space in the gearbox is limited, and it is not easy for the worm wheel to slide in the gearbox to mesh with the worm. Summary of the invention

[0004] In order to solve the problem in the prior art that the worm wheel in the existing gearbox transmission component is difficult to assemble and the worm wheel and worm are easily misaligned after assembly, resulting in transmission failure, the present application provides a worm wheel, a transmission component using the worm wheel and a transmission component processing technology.

[0005] A transmission component provided in this application adopts the following technical solution: A worm wheel comprises worm wheel teeth evenly spaced on the outer circumferential surface of the worm wheel, a tooth groove is formed between two adjacent worm wheel teeth, the tooth groove is composed of a straight tooth groove portion and an arcuate tooth groove portion, the arcuate tooth groove portion is arranged at one end or both ends of the straight tooth groove portion, the straight tooth groove portion extends along the tangent direction of the bottom of the arcuate tooth groove portion, so that the straight tooth groove portion is tangent to the bottom surface of the arcuate tooth groove portion, so that a matching worm can enter the interior of the arcuate tooth groove portion along the straight tooth groove portion and cooperate with the arcuate tooth groove portion to increase the meshing surface between the worm and the worm wheel and improve the transmission efficiency.

[0006] By adopting the above technical scheme, when the worm wheel and the worm are matched, the teeth on the worm enter the arc-shaped tooth groove part through the straight tooth groove part. Since the straight tooth groove part is tangent to the bottom surface of the arc-shaped tooth groove part, the teeth on the worm can smoothly enter the arc-shaped tooth groove along the axial direction of the worm wheel, thereby avoiding the radial displacement of the worm wheel during assembly. It is suitable for installation scenarios with small assembly space and more precise installation. At the same time, during the transmission process, the vibration and displacement of the worm along the radial direction of the worm wheel are avoided, the transmission efficiency and stability are improved, and the noise is reduced. In addition, the arc-shaped tooth groove part is arranged inside so that the arc has a larger contact surface with the teeth on the worm, thereby improving the transmission efficiency, and the arc-shaped tooth groove part can limit the worm to prevent the worm from detaching from the worm wheel. Furthermore, since the straight tooth groove part is tangent to the bottom surface of the arc-shaped tooth groove part, it can be processed and formed at one time by a circular blade during processing, thereby reducing the worm wheel processing steps and improving the worm wheel processing efficiency.

[0007] Optionally, the arc-shaped tooth groove portion is arranged at one end of the straight tooth groove portion, and the other end of the straight tooth groove portion extends through one end surface of the worm gear.

[0008] By adopting the above technical solution, when the worm wheel and the worm are assembled, the teeth on the worm enter the tooth groove on the worm wheel from the opening at one end of the tooth groove, which facilitates the assembly of the worm wheel and the worm.

[0009] A transmission component comprises a transmission shaft, one end of the transmission shaft is processed to form a worm, and the other end of the transmission shaft is fixedly connected to a worm wheel, characterized in that the worm wheel is injection-molded and arranged on the transmission shaft, the outer circumferential surface of the worm wheel is evenly spaced with worm wheel teeth, a tooth groove is formed between two adjacent worm wheel teeth, one end of the tooth groove extends through the end face of the worm wheel close to the worm to form an opening, so that the teeth of the matching worm can enter the interior of the tooth groove through the tooth groove opening.

[0010] By adopting the above technical solution, the worm is assembled inside the gear box. When assembling the transmission component, the teeth on the worm enter the tooth grooves on the worm wheel from the opening at one end of the tooth grooves, thereby realizing the cooperation between the worm wheel and the worm. The assembly of the transmission component is simpler and convenient for assembling the transmission component inside a small space. The worm wheel is set on the transmission shaft by plastic injection molding, and the overall structural strength is higher and the integrity is better.

[0011] Optionally, retaining rings for limiting the worm wheel are provided at both ends of the connection between the transmission shaft and the worm wheel, and knurling is provided on the surface of the connection between the transmission shaft and the worm wheel between the two retaining rings.

[0012] By adopting the above technical solution, the retaining ring limits the worm wheel axially, thereby improving the strength of the connection between the worm wheel and the transmission shaft, and the structural strength of the connection between the worm wheel and the transmission shaft is improved by providing knurling.

[0013] A processing technology for a transmission component, comprising: Transmission shaft processing: two symmetrical retaining rings are processed at one end of the transmission shaft, and knurling is processed between the two retaining rings; Worm processing: a worm is processed at the end of the transmission shaft away from the retaining ring; Injection molding of worm gear: injection molding the worm gear between the two retaining rings on the transmission shaft; Gear hobbing: The injection molded transmission shaft is fixed and clamped on the lathe, and the worm wheel is turned to the set size. Then, the gear hobbing tool is used to machine the tooth groove on the outer circumferential surface of the worm wheel. The distance between the gear hobbing tool and the transmission shaft surface is set to set the cutting depth of the gear hobbing tool. The gear hobbing tool is fed axially from one end face of the worm wheel close to the worm to the other end face. The gear hobbing tool stops feeding after feeding the set depth, and the gear hobbing tool keeps rotating. Then, the gear hobbing tool moves radially along the worm wheel to retract from the worm wheel, thereby machining a tooth groove structure with straight tooth groove portions and arc-shaped tooth groove portions on the surface of the worm wheel.

[0014] Optionally, the transmission shaft processing specifically includes: cutting a transmission shaft blank of a set length, mounting the transmission shaft blank on a lathe, machining two symmetrical retaining rings at one end of the transmission shaft by turning, and knurling between the two retaining rings.

[0015] Optionally, knurling is performed between the two retaining rings, specifically comprising: arranging a knurling cutter between the two retaining rings, the knurling cutter contacts the surface of the transmission shaft, and forming knurling on the surface of the transmission shaft by rolling the knurling cutter.

[0016] Optionally, the worm processing specifically includes: installing the transmission shaft on a CNC machine tool, and milling a worm of a set length on the surface of the transmission shaft by a milling cutter.

[0017] Optionally, the worm gear injection molding specifically includes: inserting one end of the transmission shaft having a retaining ring and knurling into a mold, injecting liquid raw material into the mold, vibrating the mold and then letting it stand, and demolding after the liquid raw material cools and solidifies.

[0018] Optionally, the gear hobbing process specifically includes: setting the distance between the gear hobbing tool and the surface of the transmission shaft to thereby set the cutting depth of the gear hobbing tool, thereby controlling the processing depth of the tooth groove.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, the tooth groove on the worm wheel is set to be open at one end. During assembly, the teeth on the worm enter the tooth groove through the tooth groove opening. Since the straight tooth groove part is tangent to the bottom surface of the arc-shaped tooth groove part, the teeth on the worm can smoothly enter the arc-shaped tooth groove, thereby facilitating the assembly of the transmission component and improving the assembly efficiency of the transmission component. 2. The tooth grooves on the worm wheel in the present application are composed of a straight tooth groove portion and an arc-shaped tooth groove portion. The arc-shaped tooth groove portion is arranged inside to have a larger meshing surface with the teeth on the worm, thereby improving the transmission efficiency. At the same time, the arc-shaped tooth groove portion can limit the worm to prevent the worm from being separated from the worm wheel, thereby improving the stability of the cooperation between the worm wheel and the worm. In addition, since the straight tooth groove portion is tangent to the bottom surface of the arc-shaped tooth groove portion, the teeth on the worm can smoothly enter the arc-shaped tooth groove along the axial direction of the worm wheel, thereby avoiding the radial displacement of the worm wheel during assembly. It is suitable for installation scenarios with small assembly space and relatively precise installation. At the same time, during the transmission process, the vibration and displacement of the worm along the radial direction of the worm wheel are avoided, thereby improving the transmission efficiency and stability and reducing noise. 3. A retaining ring and knurling are provided at the connection between the transmission shaft and the worm wheel, and the worm wheel is injection molded on the transmission shaft, which has better integrity, improves the structural strength of the transmission components, and extends the service life of the transmission components; 4. The tooth grooves on the worm gear in the present application are composed of a straight tooth groove portion and an arc-shaped tooth groove portion. Since the straight tooth groove portion is tangent to the bottom surface of the arc-shaped tooth groove portion, a circular blade can be used to form the straight tooth groove portion in one process, thereby reducing the number of worm gear processing steps and improving the efficiency of worm gear processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a transmission component in an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the transmission shaft structure of a transmission component in an embodiment of the present application.

[0022] Figure 3 It is a schematic diagram of a worm gear structure in an embodiment of the present application.

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of a worm gear in an embodiment of the present application.

[0024] Figure 5 It is a schematic flow chart of a transmission component processing technology in an embodiment of the present application.

[0025] Explanation of the accompanying drawings: 1. transmission shaft; 2. worm; 3. worm wheel; 4. assembly hole; 5. retaining ring; 6. knurling; 7. worm wheel teeth; 8. straight tooth groove portion; 9. arc-shaped tooth groove portion. DETAILED DESCRIPTION

[0026] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0027] See also Figure 1-5. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this application. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this application without substantially changing the technical content.

[0028] The following is combined with Figure 1-5 This application is described in further detail.

[0029] A transmission member, referring to Figure 1 , including a transmission shaft 1, a worm wheel 3 is arranged at one end of the transmission shaft 1, and a worm 2 is arranged at the other end. An assembly hole 4 is opened on the end surface of the transmission shaft 1 close to the worm 2, and the assembly hole 4 is used to cooperate with the installation tool to facilitate the installation of the transmission component.

[0030] Reference Figure 2 , retaining rings 5 ​​are symmetrically arranged on both sides of the connection between the transmission shaft 1 and the worm wheel 3, and a knurling 6 is arranged on the surface of the transmission shaft 1 between the two retaining rings 5. The knurling 6 is a plurality of edges evenly spaced and extending axially along the transmission shaft 1 and protruding from the surface of the transmission shaft 1. The worm wheel 3 is injection molded between the two retaining rings 5 ​​on the transmission shaft 1. When the worm wheel 3 is injection molded, the liquid raw material enters between two adjacent edges in the knurling 6 during injection molding. After the raw material is solidified and formed, the worm wheel 3 is tightly connected to the transmission shaft 1 through the knurling 6, and the overall structural strength is higher. At the same time, the knurling 6 can realize circumferential limitation of the worm wheel 3, and the retaining ring 5 realizes axial limitation of the worm wheel 3, thereby preventing the worm wheel 3 and the transmission shaft 1 from being offset during use, thereby improving the overall structural strength of the transmission component.

[0031] A worm gear, see Figure 3 and Figure 4The outer circumferential surface of the worm wheel 3 is evenly spaced with worm gear teeth 7, and a tooth groove 10 is formed between two adjacent worm gear teeth 7. The tooth groove 10 is composed of a straight tooth groove portion 8 and an arc-shaped tooth groove portion 9. The straight tooth groove portion 8 is tangent to the bottom of the arc-shaped tooth groove portion 9, and the bottom surface of the straight tooth groove portion 8 extends along the tangent direction of the bottom of the arc-shaped tooth groove portion 9. The straight tooth groove portion 8 extends through the end surface of the worm wheel 3 close to the worm 2 so that an opening is formed on the end surface of the worm wheel 3 close to the worm 2. One end of the tooth groove 10 is open, and the other end is set to an arc shape. During assembly, the teeth on the worm enter the inside of the tooth groove from the open end of the tooth groove 10, thereby facilitating the assembly of the transmission component in a narrow space. After assembly, the teeth on the worm cooperate with the arc-shaped portion on the tooth groove 10, the meshing surface of the tooth groove 10 and the teeth on the worm are larger, and the transmission efficiency is higher. At the same time, the arc-shaped portion limits the worm to prevent the worm from disengaging from the tooth groove 10 during transmission.

[0032] The implementation principle of a transmission component in this embodiment is as follows: when assembling the transmission component, when the worm wheel 3 cooperates with other worms inside the gear box, the teeth of the matching worm enter the arcuate tooth groove portion 9 through the straight tooth groove portion 8 and cooperate with the arcuate tooth groove portion 9. The arcuate tooth groove portion 9 is arranged to have an arc-shaped contact surface with the teeth of the matching worm, thereby increasing the meshing surface between the teeth of the matching worm and the tooth grooves 10 on the worm wheel 3, thereby improving the transmission efficiency. At the same time, the arcuate tooth groove portion 9 can limit the teeth of the matching worm to prevent the matching worm from separating from the worm wheel 3. During the transmission process, the retaining ring limits the worm wheel 3 axially. The worm wheel 3 is injection molded on the transmission shaft 1. During injection molding, the plastic enters the groove between the retaining ring 5 and the knurling 6 and the groove between two adjacent edges of the knurling 6, thereby making the worm wheel 3 tightly connected to the transmission shaft 1, thereby improving the overall structural strength of the transmission component.

[0033] A processing technology for a transmission component, referring to Figure 5 ,include: 101. Transmission shaft processing Cut a drive shaft blank of a set length, clamp the drive shaft blank with a three-jaw chuck on a lathe, drive the drive shaft blank to rotate by the three-jaw chuck, process the drive shaft blank with a tool, turn the drive shaft blank to a set size, and then turn two symmetrical retaining rings at one end of the drive shaft blank. After turning, set a knurling cutter between the two retaining rings, the knurling cutter contacts the surface of the drive shaft between the two retaining rings, the knurling cutter and the two retaining rings are spaced a set distance, drive the knurling cutter and the drive shaft to rotate synchronously, process knurling on the surface of the drive shaft by the knurling cutter, the knurling pattern protrudes from the surface of the drive shaft to form a drive shaft, and a set gap is spaced between the knurling and the two retaining rings to form an avoidance groove.

[0034] 102. Worm processing The transmission shaft is clamped and fixed by the workpiece spindle on the CNC machine tool. The workpiece spindle drives the transmission shaft to rotate, and the surface of the end of the transmission shaft away from the retaining ring is processed by high-speed rotary milling using a forming milling cutter. At the same time, pressurized coolant is sprayed through the oil nozzle installed on the milling cutter holder to flush the machined surface of the transmission shaft. The CNC machine tool controls the milling cutter feed and sets the milling length, thereby milling a worm of a set length on the surface of the transmission shaft.

[0035] 103. Worm gear injection molding Insert the end of the transmission shaft with the retaining ring and the knurling into the mold, inject resin into the mold, vibrate the mold to expel the gas in the resin to prevent bubbles, let the mold stand until the resin solidifies, and then demold it to separate the transmission shaft from the mold. The mold adopts the injection mold disclosed in the disclosed invention patent with application number: CN202211735350.3, and the invention name is: an injection molded worm gear and an injection mold for making the worm gear. During injection molding, the clamping mechanism in the injection mold clamps the retaining ring and the knurling part on the transmission shaft to fix the transmission shaft on the base. The two injection blocks slide under the action of the sliding assembly to fit the transmission shaft. After the two injection blocks slide, they form an injection column. The outer wall of the transmission shaft fits the inner wall of the mounting hole. POM (polyoxymethylene, acetal resin) is injected into the cavity through the injection hole. After cooling, a worm gear prototype is formed on the transmission shaft.

[0036] 104. Gear Hobbing The injection molded transmission shaft is clamped and fixed by the three-jaw chuck on the lathe. The three-jaw chuck drives the transmission shaft to rotate, and the cutting tool is used to process the surface of the worm wheel. The worm wheel is processed to a set size, and the surface of the worm wheel is polished, and then the worm wheel teeth are processed. The three-jaw chuck stops rotating, and the gear hobbing tool moves along the axial direction of the transmission shaft. The cutting depth of the gear hobbing tool is adjusted to set the depth of the tooth groove. The gear hobbing tool is fed from the end face of the worm wheel close to the worm for cutting. According to the required angle of the worm wheel teeth, the deflection setting angle between the gear hobbing tool and the end face of the worm wheel is set. The gear hobbing tool is fed along the axial direction of the transmission shaft. The gear hobbing tool is fed from the end face of the worm wheel close to the worm One end face feeds toward the other end face, and the gear hobbing tool stops feeding after feeding to a set depth, and the gear hobbing tool keeps rotating at high speed, and then the gear hobbing tool retracts along the radial direction of the worm wheel and disengages from the worm wheel, thereby processing a tooth groove on the surface of the worm wheel with an open end and an arc-shaped end. After one tooth groove is processed, the gear hobbing tool moves to reset, and the machine tool spindle drives the transmission shaft to rotate. The rotation angle of the transmission shaft is the set angle between two adjacent tooth grooves. The machine tool spindle drives the transmission shaft to rotate the set angle and then stops and is fixed. The gear hobbing tool repeats the above operation, and the machine tool spindle drives the transmission shaft to gradually rotate 360 ​​degrees, thereby uniformly processing tooth grooves along the circumferential direction on the outer circumferential surface of the worm wheel.

[0037] To summarize, in the present application, the tooth groove on the worm wheel is set to be open at one end. During assembly, the teeth on the worm enter the tooth groove through the tooth groove opening, thereby facilitating the assembly efficiency of the transmission component and improving the assembly efficiency of the transmission component; in the present application, the tooth groove on the worm wheel is composed of a straight tooth groove portion and an arc-shaped tooth groove portion. The interior of the arc-shaped tooth groove portion is set to be arc-shaped, and the meshing surface with the teeth on the worm is larger, thereby improving the transmission efficiency. At the same time, the arc-shaped tooth groove portion can limit the worm to prevent the worm from separating from the worm wheel, thereby improving the stability of the cooperation between the worm wheel and the worm; a retaining ring and knurling are set at the connection between the transmission shaft and the worm wheel, and the worm wheel is injection molded on the transmission shaft, which has better integrity, improves the structural strength of the transmission component, and extends the service life of the transmission component. In the present application, the tooth groove on the worm wheel is composed of a straight tooth groove portion and an arc-shaped tooth groove portion. Since the straight tooth groove portion is tangent to the bottom surface of the arc-shaped tooth groove portion, it can be processed and formed at one time by a circular blade during processing, reducing the worm wheel processing steps and improving the worm wheel processing efficiency. Therefore, the present application effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0038] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present application shall still be included in the protection scope of the present application.

Claims

1. A worm wheel, comprising worm wheel teeth (7) arranged at even intervals on the outer circumferential surface of a worm wheel (3), wherein a tooth groove (10) is formed between two adjacent worm wheel teeth (7), characterized in that: The tooth groove (10) is composed of a straight tooth groove portion (8) and an arc-shaped tooth groove portion (9) connected together. The arc-shaped tooth groove portion (9) is arranged at one end or both ends of the straight tooth groove portion (8). The straight tooth groove portion (8) extends along the tangent direction of the bottom of the arc-shaped tooth groove portion (9), so that the straight tooth groove portion (8) is tangent to the bottom surface of the arc-shaped tooth groove portion (9), so that a matching worm can enter the interior of the arc-shaped tooth groove portion (9) along the straight tooth groove portion (8) and cooperate with the arc-shaped tooth groove portion (9) to increase the meshing surface between the worm and the worm wheel (3), thereby improving the transmission efficiency.

2. The worm gear according to claim 1, characterized in that: The arc-shaped tooth groove portion (9) is arranged at one end of the straight tooth groove portion (8), and the other end of the straight tooth groove portion (8) extends through one end surface of the worm wheel (3).

3. A transmission component using the worm gear as claimed in claim 1, comprising a transmission shaft (1), one end of the transmission shaft (1) is processed to form a worm (2), and the other end of the transmission shaft (1) is fixedly connected to a worm gear (3), characterized in that: The worm wheel (3) is injection molded and arranged on the transmission shaft (1); worm wheel teeth (7) are evenly spaced on the outer circumferential surface of the worm wheel (3); a tooth groove (10) is formed between two adjacent worm wheel teeth (7); one end of the tooth groove (10) extends through the end surface of the worm wheel (3) close to the worm (2) to form an opening, so that the teeth of the matching worm can enter the interior of the tooth groove (10) through the opening of the tooth groove (10).

4. The transmission component according to claim 3, characterized in that: Retaining rings (5) for limiting the position of the worm wheel (3) are provided at both ends of the connection between the transmission shaft (1) and the worm wheel (3), and knurling (6) is provided on the surface of the connection between the transmission shaft (1) and the worm wheel (3) between the two retaining rings (5).

5. A processing technology for a transmission component according to any one of claims 3 to 4, characterized in that: include: Transmission shaft processing: two symmetrical retaining rings are processed at one end of the transmission shaft, and knurling is processed between the two retaining rings; Worm processing: a worm is processed at the end of the transmission shaft away from the retaining ring; Injection molding of worm gear: injection molding the worm gear between the two retaining rings on the transmission shaft; Gear hobbing: The injection molded transmission shaft is fixed and clamped on the lathe, and the worm wheel is turned to the set size. Then, the gear hobbing tool is used to machine the tooth groove on the outer circumferential surface of the worm wheel. The distance between the gear hobbing tool and the transmission shaft surface is set to set the cutting depth of the gear hobbing tool. The gear hobbing tool is fed axially from one end face of the worm wheel close to the worm to the other end face. The gear hobbing tool stops feeding after feeding the set depth, and the gear hobbing tool keeps rotating. Then, the gear hobbing tool moves radially along the worm wheel to retract from the worm wheel, thereby machining a tooth groove structure with straight tooth groove portions and arc-shaped tooth groove portions on the surface of the worm wheel.

6. The processing technology of the transmission component according to claim 5, characterized in that: The transmission shaft processing specifically includes: cutting a transmission shaft blank of a set length, mounting the transmission shaft blank on a lathe, machining two symmetrical retaining rings at one end of the transmission shaft by turning, and knurling between the two retaining rings.

7. The processing technology of the transmission component according to claim 6, characterized in that: The knurling between the two retaining rings specifically includes: arranging a knurling cutter between the two retaining rings, the knurling cutter contacts the surface of the transmission shaft, and forming knurling on the surface of the transmission shaft by rolling the knurling cutter.

8. The processing technology of the transmission component according to claim 5, characterized in that: The worm processing specifically includes: installing the transmission shaft on a CNC machine tool, and milling a worm of a set length on the surface of the transmission shaft by a milling cutter.

9. The processing technology of the transmission component according to claim 5, characterized in that: The worm gear injection molding specifically includes: inserting one end of the transmission shaft with a retaining ring and knurling into a mold, injecting liquid raw materials into the mold, vibrating the mold and then letting it stand, and demolding after the liquid raw materials are cooled and solidified.

10. The processing technology of the transmission component according to claim 5, characterized in that: The gear hobbing process also includes: setting the distance between the gear hobbing tool and the surface of the transmission shaft to set the cutting depth of the gear hobbing tool, thereby controlling the processing depth of the tooth groove.

Images