CN217018178U

CN217018178U - Cutting die for planet gear shaft

Info

Publication number: CN217018178U
Application number: CN202220593053.9U
Authority: CN
Inventors: 李思阳
Original assignee: Mianyang Henghong Machinery Manufacturing Co ltd
Current assignee: Mianyang Henghong Machinery Manufacturing Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-07-22
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a planet gear shaft cutting die, which relates to the technical field of processing of automobile parts and solves the technical problem of poor manufacturing precision of a planet gear shaft of a differential mechanism, and comprises a lower die holder and an upper die holder, wherein a front concave die holder is arranged at the upper end of the lower die holder, a guide pillar is arranged between the front concave die holder and the front concave die holder, a large spring is sleeved on the guide pillar, the upper end of the guide pillar is connected with a guide plate through a locking nut, the guide plate is connected with an upper sliding block, the upper sliding block is connected with the upper die holder through a short screw rod, a lower sliding block is arranged at the upper end of the front concave die holder, and the lower sliding block is positioned at the inner lower side of the upper sliding block and is in contact fit with the upper sliding block; the punching machine is used for processing the planet gear shaft of the differential mechanism, and has the advantages of greatly improving the production efficiency by punching processing of the punching machine, having stable quality, flat end surface of a workpiece, small edge collapse and ellipse, smooth subsequent clamping and ensured quality.

Description

Cutting die for planet gear shaft

Technical Field

The utility model relates to the technical field of machining of automobile parts, in particular to the technical field of a planet gear shaft cutting die.

Background

The differential mechanism has the function of allowing the half shafts on the two sides to rotate at different rotating speeds while transmitting power to the half shafts on the two sides, so that the requirement that wheels on the two sides move at different rotating speeds is met, and the friction between tires and the ground is reduced. When the automobile turns, such as a left turn, the center of curvature is on the left side, and the track of the right side wheel is longer than that of the left side wheel in the same time, so that the right side wheel rotates faster, and the effect is achieved through a differential mechanism, wherein the differential mechanism comprises mechanical parts such as a differential case, a planetary gear shaft, a half shaft gear and the like, the planetary gear rotates around the planetary gear shaft, and the manufacturing precision of the planetary gear directly influences the performance of the differential mechanism.

At present, a planetary gear shaft is cut off by a sawing machine, although a plurality of gear shafts can be cut at one time, the consumption of a cutter is high, the processing time is long, the end face of a workpiece is easy to deflect in the cutting process, and the manufacturing precision of the gear shaft influences the performance of a differential.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the utility model provides a planet gear shaft cutting die, aiming at solving the problem of poor manufacturing precision of a planet gear shaft of a differential.

The utility model specifically adopts the following technical scheme for realizing the purpose:

the planet gear shaft cutting die comprises a lower die holder and an upper die holder, wherein the upper end of the lower die holder is provided with a front die holder, a guide pillar is arranged between the front die holder and the front die holder, a large spring is sleeved on the guide pillar, the upper end of the guide pillar is connected with a guide plate through a locking nut, the guide plate is connected with an upper sliding block, the upper sliding block is connected with the upper die holder through a short screw rod, the upper end of the front die holder is provided with a lower sliding block, and the lower sliding block is positioned on the inner lower side of the upper sliding block and is in contact fit with the upper sliding block and the lower sliding block.

Furthermore, the upper sliding block and the lower sliding block are respectively positioned on the front side and the rear side of the upper die holder, and the guide pillar and the guide plate are positioned on the front side and the rear side of the upper die holder.

Further, the lower end of the upper die base is provided with an upper die plate, the lower end of the upper die plate is provided with a male die, and the male die is in butt joint with a female die between the front female die base and the front female die base.

Further, the male die is in a round concave shape.

Furthermore, the lower sliding block is connected with the lower sliding block through a small spring.

Furthermore, the upper sliding block is provided with an oval groove, and the short screw penetrates through the oval groove to be connected with the upper die base.

Furthermore, the left and right sides the front die base have spacing shelves strip, left the spacing shelves strip is cylindrical, and left spacing shelves strip threaded connection has the nut, the nut has the tool sleeve piece, and left spacing shelves strip passes the baffle that lower die base lock joint connects and is located front die base upper end, and the nut is located between baffle and the front die base, the spacing shelves strip on right side is fixed in front die base upper end.

The utility model has the following beneficial effects:

1. according to the processing scheme, the punching machine is used for punching and processing, two workpieces are punched at one time, the production efficiency is greatly improved, the maintenance is convenient, the quality is stable, the end faces of the workpieces are flat, and the collapsed edges and the ovals are small, so that the subsequent clamping is smooth, and the quality is ensured;

2. according to the utility model, a bar is placed on the semicircular arc of the front concave die holder and positioned between the left and right limiting stop bars, a tool is sleeved on the tool sleeve block, the left limiting stop bar abuts against the bar through the rotation of the nut, and the bar is finally abutted between the left and right limiting stop bars, so that the bar is prevented from axial displacement and further axial positioning of the bar is prevented;

3. according to the utility model, the upper sliding blocks on the left side and the right side are matched with the lower sliding blocks on the left side and the right side in advance when the upper die base moves downwards, the upper sliding blocks continue to move downwards to push the lower sliding blocks oppositely to clamp a bar, meanwhile, a male die stamps the bar, the upper die base moves upwards with the male die, the upper sliding blocks do not move upwards but apply clamping force all the time to keep the bar clamped, the male die moves downwards to stamp the bar, and the male die moves upwards and downwards repeatedly until the upper sliding blocks do not move upwards and downwards until the male die 14 punches the bar into the female die;

4. the upper die base moves upwards all the time under the action of the large spring, the upper sliding block moves upwards to be separated from the lower sliding block, the upper die plate and the male die are in a reset state under the action of the large spring, the lower sliding block is reset to two sides under the action of the small spring, and the bars are loosened simultaneously.

Drawings

FIG. 1 is a schematic view of the present invention in a front view;

fig. 2 is a side view structural diagram of the present invention.

Reference numerals are as follows: 1-a lower die holder, 2-a guide post, 3-a front concave die holder, 4-a large spring, 5-a baffle, 6-a tool sleeve block, 7-a nut, 8-a short screw, 9-an upper slide block, 10-a locking nut, 11-an upper die holder, 12-a guide plate, 13-an upper template, 14-a convex die, 15-a small spring, 16-a lower slide block and 17-a limiting stop strip.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1

As shown in fig. 1 to 2, the planetary gear shaft cutting die provided in this embodiment includes a lower die holder 1, a guide pillar 2 and an upper die holder 11, the upper end of the lower die holder 1 has a front die holder 3, the guide pillar 2 is arranged between the front die holder 3 and the front die holder 3, a large spring 4 is sleeved on the guide pillar 2, the upper end of the guide pillar 2 is connected to a guide plate 12 through a lock nut 10, the guide plate 12 is connected to an upper slide 9, the upper slide 9 is connected to the upper die holder 11 through a short screw 8, the upper slide 9 has an elliptical groove, the short screw 8 passes through the elliptical groove and is connected to the upper die holder 11, the upper end of the front die holder 3 has a lower slide 16, the lower slide 16 is connected to the lower slide 16 through a small spring 15, and the lower slide 16 is located at the inner lower side of the upper slide 9 and is in contact fit with the upper slide 9.

The upper slide block 9 and the lower slide block 16 are respectively positioned at the front side and the rear side of the upper die holder 11, and the guide post 2 and the guide plate 12 are positioned at the front side and the rear side of the upper die holder 11.

The lower end of the upper die holder 11 is provided with an upper die plate 13, the lower end of the upper die plate 13 is provided with a male die 14, the male die 14 is butted with a female die between the front female die holder 3 and the front female die holder 3, and the male die 14 is in a circular concave shape.

The left and right front die holder 3 is provided with a limiting stopper 17, the left limiting stopper 17 is cylindrical, the left limiting stopper 17 is in threaded connection with a nut 7, the nut 7 is provided with a tool sleeve block 6, the left limiting stopper 17 penetrates through a baffle 5 fixedly connected with the lower die holder 1 and is positioned at the upper end of the front die holder 3, the nut 7 is positioned between the baffle 5 and the front die holder 3, and the right limiting stopper 17 is fixed at the upper end of the front die holder 3.

Example 2

The planet gear shaft is a steel part, and the main processing technology is as follows: firstly, the processes of blanking, rough turning of an outer circle and chamfering of an end face, rough grinding, milling of an oil groove, drilling, heat treatment, fine grinding and the like are carried out.

The upper sliding fixing plate drives the male die 14 below the upper template 13 to move downwards to blank the bar, the male die 14 is designed into a circular concave shape, the key is that the bar is bent in the female die after the bar is extruded, the bar is only axially positioned in the past, the end face of a workpiece subjected to punching is collapsed due to bending and jumping of the bar during blanking, the section of the end face is oval, and therefore the subsequent procedure is difficult to increase, and the number of working procedures is increased.

Example 3

The working principle of the utility model is as follows: the bar is put in preceding die holder 3, and the cross section of preceding die holder 3 has the semicircle, and the bar is put on the semicircle of preceding die holder 3 and is located between the spacing shelves 17 on left side and right side, and 6 covers of instrument nest block have the instrument and pass through the rotation of nut 7 and make left spacing shelves 17 support and lean on the bar, and the bar finally supports tightly between the spacing shelves 17 on left and right side, prevents bar axial displacement and then to bar axial positioning.

The upper die base 11 downwards drives the upper sliding blocks 9 on the left side and the right side to be matched with the lower sliding blocks 16 on the left side and the right side in advance, the upper die base 11 continuously downwards enables the upper sliding blocks 9 to push the lower sliding blocks 16 oppositely to clamp the bar, meanwhile, the male die 14 punches the bar, as the upper sliding blocks 9 are provided with the oval slots, the short screw 8 penetrates through the oval slots to be connected with the upper die base 11, the male die 14 is upwards moved on the upper die base 11, the upper sliding blocks 9 do not upwards move and exert clamping force all the time to keep the bar clamped, the male die 14 downwards moves to punch the bar, and the male die 14 repeatedly upwards and downwards does not upwards and downwards move until the male die 14 punches the bar into the female die; the upper die base 11 moves upwards all the time under the action of the large spring 4, the upper sliding block 9 moves upwards to be separated from the lower sliding block 16, the upper sliding block 9, the upper die plate 13 and the male die 14 are in a recovery state under the action of the large spring 4, the lower sliding block 16 recovers towards two sides under the action of the small spring 15, and the bars are loosened simultaneously.

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. Planetary gear axle cutting off mould, including die holder (1) and upper die base (11), its characterized in that: the upper end of the lower die holder (1) is provided with a front die holder (3), a guide post (2) is arranged between the front die holder (3) and the front die holder (3), a large spring (4) is sleeved on the guide post (2), the upper end of the guide post (2) is connected with a guide plate (12) through a locking nut (10), the guide plate (12) is connected with an upper sliding block (9), the upper sliding block (9) is connected with an upper die holder (11) through a short screw (8), the upper end of the front die holder (3) is provided with a lower sliding block (16), and the lower sliding block (16) is positioned at the inner lower side of the upper sliding block (9) and is in contact fit with the upper sliding block and the lower sliding block.

2. The planet gear shaft cutting die according to claim 1, wherein: the upper sliding block (9) and the lower sliding block (16) are respectively positioned at the front side and the rear side of the upper die holder (11), and the guide post (2) and the guide plate (12) are positioned at the front side and the rear side of the upper die holder (11).

3. The planet gear shaft cutting die according to claim 1, wherein: the lower end of the upper die holder (11) is provided with an upper die plate (13), the lower end of the upper die plate (13) is provided with a male die (14), and the male die (14) is in butt joint with a female die between the front female die holder (3) and the front female die holder (3).

4. The planet gear shaft cutting die according to claim 3, wherein: the male die (14) is in a circular concave shape.

5. The planet gear shaft cutting die according to claim 1, wherein: the lower sliding block (16) is connected with the lower sliding block (16) through a small spring (15).

6. The planet gear shaft cutting die according to claim 1, wherein: the upper sliding block (9) is provided with an oval groove, and the short screw (8) penetrates through the oval groove to be connected with the upper die base (11).

7. The planet gear shaft cutting die according to claim 1, wherein: left and right side front die holder (3) have spacing shelves strip (17), left spacing shelves strip (17) are cylindrical, and left spacing shelves strip (17) threaded connection has nut (7), nut (7) have instrument cover piece (6), and left spacing shelves strip (17) pass baffle (5) of die holder (1) lock joint and are located front die holder (3) upper end, and nut (7) are located between baffle (5) and front die holder (3), and spacing shelves strip (17) on right side are fixed in front die holder (3) upper end.