Planetary gear shaft spline processing equipment

Abstract

The present invention proposes a planetary gear shaft spline processing equipment, comprising a workbench, a base slidably mounted on the workbench and a box body located on one side of the workbench, an ejector seat, the ejector seat is mounted on the base; a bearing member, the bearing member is connected to the base and at least part of the bearing member is in a suspended state, the suspended part of the bearing member is provided with two open grooves arranged at intervals for supporting the planetary gear shaft, and the open grooves are located on one side of the ejector seat; a thread rolling plate, the thread rolling plates are two staggered and parallel to each other and installed in the box body; a driving mechanism, the driving mechanism is installed on the box body, and is used to drive the two thread rolling plates to move toward each other. After the present invention supports the planetary gear shaft, one end of it is in a suspended state, which reduces the clamping time, makes the loading and unloading of workpieces faster, and improves efficiency; the cooperation between the tooling formed by the ejector seat and the bearing member and the thread rolling plate avoids interference between the thread rolling plate and the tooling, and the mutual cooperation structure is more ingenious; the manufacturing cost is low and the processing is convenient.

Description

Technical Field

[0001] The invention relates to the field of planetary axle processing, in particular to planetary axle spline processing equipment. Background Art

[0002] The planetary axle is a key part of the automobile starter motor. It is not only necessary to press-fit pins into the three pin holes of the planetary axle, but also to machine transmission teeth on the axle. In the prior art, the processing of transmission teeth is mostly done by rolling.

[0003] That is, a thread rolling machine is used to feed the blank into a thread rolling plate, and the thread rolling plate reciprocates to process the blank. Since there is a disc on the planetary gear shaft, the transmission gear processing part of the planetary gear shaft is close to the disc. The existing positioning method uses an ejector pin to support the center holes at both ends of the planetary gear shaft. The thread rolling plate needs to move on both sides of the planetary gear shaft. The ejector pin needs to be supported by an ejector pin seat. Therefore, a position for one of the ejector pin seats to pass through needs to be left between the two thread rolling plates, which will limit the installation structure of the thread rolling plate. The conventional method is generally to place one of the thread rolling plates It is designed as a mobile structure, but when processing the transmission gear, multiple steps are required: installing the planetary gear shaft on the two ejectors, retracting the thread rolling plate (equivalent to retracting the tool) to make room for feeding, sending the ejector supporting the planetary gear shaft into the gear rolling area, and advancing the thread rolling plate (equivalent to feeding the tool). After the processing is completed, the thread rolling plate retreats again, and the ejector supporting the planetary gear shaft exits the gear rolling area. The process becomes complicated, affecting the processing efficiency. The mobile thread rolling plate is prone to poor positioning accuracy, and the workpiece needs to be repeatedly loaded and unloaded on the ejector, making loading and unloading inconvenient. Summary of the invention

[0004] In view of the deficiencies existing in the prior art, the present invention provides a planetary gear shaft spline processing device, which solves the problems existing in the prior art of complicated processing procedures and inconvenient loading and unloading of workpieces.

[0005] The present invention provides a planetary gear shaft spline processing device, comprising a workbench, a base slidably mounted on the workbench, a box located on one side of the workbench, and an ejector seat, wherein the ejector seat is mounted on the base;

[0006] A bearing member, the bearing member is connected to the base and at least part of the bearing member is in a suspended state, the suspended part of the bearing member is provided with two open grooves arranged at intervals for supporting the planetary gear shaft, and the open grooves are located on one side of the ejector seat;

[0007] There are two thread rolling plates, and the two thread rolling plates are staggered and installed in parallel in the box;

[0008] The driving mechanism is installed on the box body and is used to drive the two thread rolling plates to move towards each other.

[0009] The present invention processes the splines of the planetary gear shaft in the following manner: the planetary gear shaft is placed in the open groove on the carrier, the two open grooves support the two ends of the planetary gear shaft, the ejector on the ejector seat is pressed against the center hole of one end of the planetary gear shaft, the sliding base makes the planetary gear shaft be located between the two thread rolling plates, and the position of the spline to be processed of the planetary gear shaft is opposite to the processing surface of the thread rolling plate, the two thread rolling plates move towards each other to the maximum limit, thus forming a feeding space for the planetary gear shaft, and the thread rolling plates are driven by the driving mechanism to move, so as to realize the spline processing of the planetary gear shaft. Since the present invention uses the open groove set on the suspended part of the carrier to support the planetary gear shaft, the planetary gear shaft can be placed on the carrier to realize loading, and the unloading can be directly taken off the carrier, which is convenient for loading and unloading, reduces the support for the other end of the planetary gear shaft, and does not need to design the feeding channel between the two thread rolling plates separately, so that the equipment structure is simpler and the equipment cost is reduced.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) After supporting the planetary gear shaft, one end of it is suspended in the air, which reduces the clamping time, makes loading and unloading of workpieces faster, and improves efficiency;

[0012] (2) The tooling formed by the ejector seat and the bearing parts cooperates more smoothly with the thread rolling plate, avoiding interference between the thread rolling plate and the tooling, and the mutual cooperation structure is more ingenious;

[0013] (3) Low manufacturing cost and easy processing; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 for Figure 1 Schematic diagram of the structure after the planetary gear shaft is placed.

[0016] Figure 3 It is a stereogram of the present invention.

[0017] Figure 4 It is a stereogram from another viewing angle of the present invention. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-4As shown, the box is briefly shown in the figure, and the box can be an existing machine tool box. A planetary gear shaft spline processing equipment proposed by the present invention comprises a workbench 1, an ejector seat 2, a base 3 slidably mounted on the workbench 1, and a box located on one side of the workbench 1, and the ejector seat 2 is mounted on the base 3; it also comprises a bearing member, the bearing member is connected to the base 3 and the bearing member is at least partially in a suspended state, and the suspended part of the bearing member is provided with two open grooves arranged at intervals for supporting the planetary gear shaft, and the open groove is located on one side of the ejector seat 2;

[0020] The thread rolling plates 4 are two in number, and the two thread rolling plates 4 are staggered and installed in parallel in the box;

[0021] The driving mechanism is installed on the box body and is used to drive the two thread rolling plates 4 to move towards each other.

[0022] The present invention processes the spline of the planetary gear shaft in this way: Figure 2 , place the planetary gear shaft in the open groove on the carrier, the two open grooves support the two ends of the planetary gear shaft, the ejector on the ejector seat 2 is against the center hole of one end of the planetary gear shaft, the sliding base 3 makes the planetary gear shaft located between the two thread rolling plates 4, and makes the position of the spline to be processed of the planetary gear shaft opposite to the processing surface of the thread rolling plate 4, the two thread rolling plates 4 move towards each other to the maximum limit, thus forming the feeding space of the planetary gear shaft, and the driving mechanism drives the thread rolling plate 4 to move, so as to realize the spline processing of the planetary gear shaft. The thread rolling plate 4 can adopt the thread rolling plate structure in a planetary wheel thread rolling plate disclosed by announcement number CN216226722U. Since the present invention adopts the open groove set in the suspended part of the carrier to support the planetary gear shaft, the planetary gear shaft can be placed on the carrier to realize loading, and the unloading can be directly taken off the carrier, which is convenient for loading and unloading, reduces the support for the other end of the planetary gear shaft, and does not need to design the feeding channel between the two thread rolling plates 4 separately, so that the equipment structure is simpler and the equipment cost is reduced.

[0023] like Figure 3 , 4 As shown, a guide strip 5 is provided between the workbench 1 and the inner wall of the box body. The guide strip 5 is located between the two thread rolling plates 4. A guide sleeve that can slide on the guide strip 5 is provided at the bottom of the bearing. The guide sleeve slides on the guide strip 5 to improve the stability of feeding, so as not to occupy too much processing position between the two thread rolling plates 4. The guide strip 5 is selected as a flat sheet material as much as possible, and a metal plate with a rectangular cross section can be used, which is conducive to the feeding and unloading of the planetary gear shaft. One end of the guide strip 5 extends into the box body and can be installed on the inner wall of the box body. The guide strip 5 is located below the driving mechanism. The other end of the guide strip 5 is connected to a support rod, and the support rod is fixed on the workbench 1 (not shown in the figure).

[0024] like Figure 1 , 2 As shown in Figure 3, the carrier includes a connecting member 31, a first support plate 32, and a second support plate 33. The connecting member 31 is connected to the base 3. The bottom ends of the first support plate 32 and the second support plate 33 are both installed on the connecting member 31, and the first support plate 32 and the second support plate 33 are arranged at intervals. The first support plate 32 is close to the ejector seat 2. The opening grooves are opened on the first support plate 32 and the second support plate 33, and the notches of the opening grooves are both located at the tops of the two support plates.

[0025] The planetary gear shaft is supported by the openings on the first support plate 32 and the second support plate 33. The two support plates are arranged at intervals so that the planetary gear shaft spans the first support plate 32 and the second support plate 33. The end of the planetary gear shaft close to the ejector seat 2 is the small diameter end of the planetary gear shaft. The first support plate 32 and the second support plate 33 can also be made of flat sheet materials to reduce the occupied amount of the processing position and make the thread rolling plate 4 have a larger processing space. The opening groove uses a V-shaped groove to support the planetary gear shaft.

[0026] In order to support the disc of the planetary gear shaft, a support member 34 for supporting the planetary gear shaft disc may be provided on the connecting member 31 on the side of the second support plate 33 away from the first support plate 32. The support member 34 is provided with an arc groove, and the opening of the arc groove is located on the top surface of the support member 34. The arc groove matches the annular surface of the disc to facilitate supporting the disc. There may be a gap between the support member 34 and the second support plate 33.

[0027] like Figure 4 As shown, the driving mechanism includes a power output gear 6 and a rack 7 meshing with the power output gear 6, the power output gear 6 is installed in the box, and the rack 7 is fixed on a support plate for installing the thread rolling plate 4. The position where the power output gear 6 is installed in the box is higher than the guide strip 5, so that the rotation process of the power output gear 6 is not interfered, the power output gear 6 can be driven to rotate by the main shaft of the box, and the rack 7 is symmetrically distributed on both sides of the power output gear 6, so that the movement of the two thread rolling plates 4 is uniform and consistent.

[0028] The top and bottom surfaces of the thread rolling plate 4 are provided with inclined surfaces 41, the inclined surface 41 on the top surface of the thread rolling plate 4 is inclined from the thread rolling surface to the bottom surface of the thread rolling plate 4, and the inclined surface 41 on the bottom surface of the thread rolling plate 4 is inclined from the thread rolling surface to the top surface of the thread rolling plate 4. The inclined surface 41 can provide a large space when the two thread rolling plates 4 move toward each other to the maximum limit, which is convenient for feeding and withdrawing materials.

[0029] The workbench 1 is provided with a slide rail located below the guide strip 5, the end of the slide rail extends to the entrance of the box, and the slide rail is provided with a sliding seat for fixing the base 3, and the sliding seat is provided with a channel for the guide strip 5 to pass through.

[0030] like Figure 1 , 2 As shown in Figure 3, the connecting member 31 includes a connecting plate 311, a connecting seat 312 and a connecting rod 313. One end of the connecting plate 311 is connected to the connecting seat 312, and the other end of the connecting plate 311 is suspended. The connecting rods 313 are two parallelly arranged, one end of the two connecting rods 313 is connected to the connecting seat 312, and the other end of the connecting rods 313 is connected to the base 3. The connecting seat 312 is provided with a groove that cooperates with the guide strip 5 to facilitate the reciprocating sliding of the connecting seat 312 on the guide strip 5. The design of this structure makes the distribution of the bearing and the ejector seat 2 more reasonable, which is convenient for the placement of the planetary gear shaft.

Claims

1. A planetary gear shaft spline processing device, comprising a workbench, a base slidably mounted on the workbench, and a box located on one side of the workbench, characterized in that: Also includes An ejector seat, wherein the ejector seat is installed on the base; A bearing member, the bearing member is connected to the base and at least part of the bearing member is in a suspended state, the suspended part of the bearing member is provided with two open grooves arranged at intervals for supporting the planetary gear shaft, and the open grooves are located on one side of the ejector seat; A thread rolling plate, wherein the thread rolling plates are in two pieces, and the two thread rolling plates are staggered and installed in parallel in the box body, and the top and bottom surfaces of the thread rolling plates are provided with inclined surfaces, the inclined surface on the top surface of the thread rolling plate is inclined from the thread rolling surface to away from the bottom surface of the thread rolling plate, and the inclined surface on the bottom surface of the thread rolling plate is inclined from the thread rolling surface to away from the top surface of the thread rolling plate; A driving mechanism, the driving mechanism is installed on the box body and is used to drive the two thread rolling plates to move towards each other; A guide strip is provided between the workbench and the inner wall of the box body, the guide strip is located between the two thread rolling plates, and a guide sleeve that can slide on the guide strip is provided at the bottom of the bearing member; The bearing member includes a connecting member, a first supporting plate, and a second supporting plate, wherein the connecting member is connected to the base, the bottom ends of the first supporting plate and the second supporting plate are both mounted on the connecting member, and the first supporting plate and the second supporting plate are arranged at intervals, the first supporting plate is close to the ejector seat, the opening groove is provided on the first supporting plate and the second supporting plate, and the notches of the opening groove are both located at the tops of the two supporting plates; A supporting member for supporting the planetary gear shaft disc is arranged on the connecting member on the side of the second supporting plate away from the first supporting plate.

2. A planetary gear shaft spline processing equipment as claimed in claim 1, characterized in that: The opening groove is a V-shaped groove.

3. A planetary gear shaft spline processing equipment as claimed in claim 1, characterized in that: The support member is provided with an arc-shaped groove, and the opening of the arc-shaped groove is located on the top surface of the support member.

4. A planetary gear shaft spline processing equipment as claimed in claim 1, characterized in that: The driving mechanism comprises a power output gear and a rack meshed with the power output gear. The power output gear is installed in the box body, and the rack is fixed on a supporting plate for installing a thread rolling plate.

5. The planetary gear shaft spline processing equipment according to claim 1, characterized in that: The workbench is provided with a slide rail located below the guide strip, the end of the slide rail extends to the entrance of the box, the slide rail is provided with a sliding seat for fixing the base, and the sliding seat is provided with a channel for the guide strip to pass through.

6. The planetary gear shaft spline processing equipment according to claim 1, characterized in that: The connecting member includes a connecting plate, a connecting seat and a connecting rod, one end of the connecting plate is connected to the connecting seat, and the other end of the connecting plate is suspended in the air. The connecting rods are two connected in parallel, one end of the two connecting rods is connected to the connecting seat, and the other end of the connecting rods is connected to the base.

Images