CN219336704U

CN219336704U - Tool for press fitting of planet carrier and pin shaft

Info

Publication number: CN219336704U
Application number: CN202223572669.7U
Authority: CN
Inventors: 薛伟; 顾余文
Original assignee: Yangzhou Tianjian Machinery Manufacture Co ltd
Current assignee: Yangzhou Tianjian Machinery Manufacture Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-07-14
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a tool for press fitting of a planet carrier and a pin shaft, which comprises a pin pressing base, a long pin shaft, a short pin shaft, an upper punching jig arranged above the pin pressing base, wherein hydraulic cylinders are symmetrically arranged at the top of the upper punching jig, pin pressing grooves are formed in the bottom of the upper punching jig, a long pin shaft positioning jig is fixedly connected in the middle of the inside of the pin pressing base, and an ejection assembly is arranged at one side of the top of the pin pressing base, and the tool further comprises: the compression spring is sleeved on the outer side of the long pin shaft positioning jig, the bottom of the long pin shaft is attached to the top end of the long pin shaft positioning jig, the short pin shaft placing jig is arranged above the long pin shaft positioning jig, and the jig groove is formed in the short pin shaft placing jig, so that the problems that when the pin shafts are assembled, the pins with different numbers and different lengths are inconvenient to install, the assembly precision cannot be effectively ensured, and the assembly efficiency is low are solved, and the practicability of the utility model is stronger.

Description

Tool for press fitting of planet carrier and pin shaft

Technical Field

The utility model relates to the technical field of press fitting, in particular to a tool for press fitting a planet carrier and a pin shaft.

Background

The planet carrier is one of the main components of the planetary gear transmission, the planet wheel shafts or bearings are arranged on the planet carrier, and the reasonable structure of the planet carrier is light in weight, good in rigidity and convenient to process and assemble. When the planetary pin shaft is assembled on the planet carrier, the existing assembly method generally adopts a hot-assembling method or a single pin shaft press-assembling method to assemble because the assembly between the planetary pin shaft and the planet carrier is interference fit, so that the assembly precision cannot be effectively ensured, and the assembly efficiency is low.

Publication number CN206241944U discloses a pressure equipment mould for pivot and fixed with the metal sheet, including last mould, lower mould, pivot one end is formed with the head that extends to the outside of radius direction, the pivot skew the part of head is the pin portion, and the metal sheet is formed with the confession the through-hole that the pivot passed through, the lower mould up end is formed with and is used for right the holding tank that the pin lower extreme of pivot gave way, just the lower mould up end is formed with the annular protruding head that extends upwards, works as the pin lower extreme is located in the holding tank, pin portion radial outer wall with holding tank cell wall, annular protruding internal edge contact, but this patent still has following problem in the in-service use:

the device makes the fixed anti torsion of pivot and tensile strength improve greatly for the product can normal use, but, the device only can fix single round pin axle, can not deal with different kinds of round pins in a flexible way, and machining efficiency is lower, can cause when the round pin axle is assembled, is inconvenient for installing the round pin axle of different quantity and different length, and assembly precision can't effectively guarantee, and the problem of assembly efficiency low moreover makes the device have certain limitation when in actual use.

A tool for press-fitting a planet carrier and a pin shaft is provided, so that the problems in the prior art can be solved.

Disclosure of Invention

The utility model aims to provide a tool for press-fitting a planet carrier and pin shafts, which solves the problems that when the pin shafts are assembled, the pin shafts with different numbers and different lengths are inconvenient to install, the assembly precision cannot be effectively ensured, and the assembly efficiency is low.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the tool for press fitting of the planet carrier and the pin shaft comprises a pin pressing base, a long pin shaft, a short pin shaft and an upper punching tool arranged above the pin pressing base, wherein hydraulic cylinders are symmetrically arranged at the top of the upper punching tool;

the upper part of the upper punch jig is provided with a placing groove, the bottom of the upper punch jig is provided with a pin pressing groove, the middle of the inside of the pin pressing base is fixedly connected with a long pin positioning jig, and one side of the top of the pin pressing base is provided with an ejection assembly;

further comprises:

the outer side of the long pin shaft positioning jig is sleeved with a compression spring, and the bottom of the long pin shaft is attached to the top end of the long pin shaft positioning jig;

the short pin shaft positioning jig is arranged above the long pin shaft positioning jig, and a jig groove is formed in the short pin shaft positioning jig;

the top of the short pin shaft placement jig is provided with a centering jig, and a positioning hole is formed in the centering jig.

Preferably, the compression spring is located between the short pin shaft placing jig and the long pin shaft positioning jig, the long pin shaft is in sliding connection with the jig groove, the planet carrier body is installed at the top of the centering jig, the long pin shaft groove is formed in the middle of the planet carrier body, and the short pin shaft groove is uniformly formed in the planet carrier body.

Preferably, the long pin shaft is connected with the long pin shaft groove in an adaptive manner, the short pin shaft is connected with the short pin shaft groove in an adaptive manner, the long pin shaft groove and the short pin shaft groove are in one-to-one correspondence with the positioning holes, and the height of the short pin shaft placing jig is designed according to the height difference on the matched planet carrier body.

Preferably, the upper portion of the press pin base is provided with a first chute, one side of the short pin shaft placement jig is fixedly connected with an auxiliary sliding block, the auxiliary sliding block is in sliding connection with the first chute, the ejection assembly comprises an installation box, the bottom of the installation box is fixedly connected with the press pin base, and an ejection rotating shaft is vertically arranged in the installation box.

Preferably, the bottom of the ejection rotating shaft is rotationally connected with the mounting box, an ejection piece is connected with the upper portion of the ejection rotating shaft in a threaded manner, and a driven gear is fixedly connected with the lower portion of the ejection rotating shaft.

Preferably, the ejection assembly further comprises a driving shaft, the driving shaft is rotationally connected with the mounting box, one side of the driving shaft is fixedly connected with a driving gear, the driving gear is in meshed connection with the driven gear, the other side of the driving shaft is fixedly connected with a rotary table, and one side of the rotary table, far away from the driving shaft, is fixedly connected with a rotary handle.

Preferably, the both sides symmetry of press pin base is fixed with the fixed block, the top fixedly connected with guide bar of fixed block, the top fixedly connected with stopper of guide bar, the upper portion sliding connection of guide bar has the guide slider, guide slider and upper punch tool fixed connection.

Compared with the prior art, the utility model has the beneficial effects that: through the cooperation of centering tool and spacing tool, can once accomplish the pressure equipment of many round pins to improve reliability and the production efficiency of assembly, it is more convenient during the use, its concrete content is as follows:

1. through the cooperation of centering tool and spacing tool, the height of spacing tool is according to the difference in height design on supporting planet carrier, through setting up compression spring, make the spacing tool of short round pin axle and the spacing tool of long round pin axle step-type, can make things convenient for the frock tool to reset, make the device can once accomplish the pressure equipment of many round pins, and can effectively guarantee the precision of assembly, thereby improve the reliability and the production efficiency of assembly, the problem that the assembly precision can't effectively be guaranteed to the round pin axle of different quantity and different length when the round pin axle is assembled is solved, and moreover assembly efficiency is low, thereby make the practicality of the utility model stronger.

2. Through setting up ejecting subassembly, cooperation reset spring, can more conveniently assist tooling tool to reset to guarantee the smooth operation of device, through setting up guide bar and direction slider, can assist the operation of pushing down of upper punch tool, play the purpose of accurate location simultaneously, improved the accuracy of pressure equipment, reduced the product loss that the operation was improper caused, reduced the cost of production.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model in a front section;

FIG. 2 is an enlarged schematic view of the area A of FIG. 1 according to the present utility model;

FIG. 3 is an enlarged schematic view of the area B of FIG. 1 according to the present utility model;

FIG. 4 is a schematic diagram of a planet carrier structure according to the present utility model;

FIG. 5 is a schematic cross-sectional view of a finished medium pressure pin of the present utility model;

fig. 6 is a schematic perspective view of the intermediate press pin product of the present utility model.

In the figure: 1. a press pin base; 2. an upper punch jig; 3. a hydraulic cylinder; 4. a placement groove; 5. a pin pressing groove; 6. positioning jig for long pin shaft; 7. a compression spring; 8. a long pin shaft; 9. placing a jig by a short pin shaft; 10. a jig trough; 11. a centering jig; 12. a short pin shaft; 13. a planet carrier body; 131. a long pin shaft groove; 132. a short pin shaft groove; 14. a first chute; 141. an auxiliary slide block; 15. an ejection assembly; 151. a mounting box; 152. ejecting the rotating shaft; 153. an ejector; 154. a driven gear; 155. a driving shaft; 156. a drive gear; 157. a turntable; 158. rotating the handle; 16. a fixed block; 17. a guide rod; 18. a limiting block; 19. and a guide sliding block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides the following technical solutions: the utility model provides a frock of planet carrier and round pin axle pressure equipment, includes press pin base 1, long round pin axle 8, short round pin axle 12 and installs the upper punch tool 2 in press pin base 1 top, and hydraulic cylinder 3 is installed to the top symmetry of upper punch tool 2, and standing groove 4 has been seted up on the upper portion of upper punch tool 2, and press pin groove 5 has been seted up to the bottom of upper punch tool 2, and the inside intermediate fixedly connected with long round pin axle positioning jig 6 of press pin base 1, the top one side of press pin base 1 is provided with ejecting subassembly 15.

The outside of long round pin axle location tool 6 has cup jointed compression spring 7, and the bottom of long round pin axle 8 is laminated with the top of long round pin axle location tool 6 mutually, and wherein, short round pin axle is placed tool 9 is installed to the top of long round pin axle location tool 6, and the inside of short round pin axle is placed tool 9 has seted up tool groove 10, and wherein, centering tool 11 is installed at the top of short round pin axle and is placed tool 9, and the inside of centering tool 11 is provided with the locating hole.

The compression spring 7 is located between the short pin shaft placing jig 9 and the long pin shaft positioning jig 6, the long pin shaft 8 is in sliding connection with the jig groove 10, the planet carrier body 13 is installed at the top of the centering jig 11, the long pin shaft groove 131 is formed in the middle of the planet carrier body 13, the short pin shaft groove 132 is uniformly formed in the planet carrier body 13, the long pin shaft 8 is in fit connection with the long pin shaft groove 131, the short pin shaft 12 is in fit connection with the short pin shaft groove 132, and the long pin shaft groove 131 and the short pin shaft groove 132 are in one-to-one correspondence with the positioning holes.

The height of jig 9 is placed to short round pin axle is according to the difference in height design on supporting planet carrier body 13, through the cooperation of centering tool 11 and spacing tool, the height of spacing tool is according to the difference in height design on supporting planet carrier body 13, through setting up compression spring 7, make the spacing tool of short round pin axle 12 and the spacing tool of long round pin axle 8 step type, can make things convenient for the frock tool to reset for the press-fit of many round pins can once be accomplished to the device, moreover can effectively guarantee the precision of assembly, thereby improve the reliability and the production efficiency of assembly.

The upper portion of the press pin base 1 is provided with a first sliding groove 14, one side of the short pin shaft placing jig 9 is fixedly connected with an auxiliary sliding block 141, the auxiliary sliding block 141 is in sliding connection with the first sliding groove 14, the ejection assembly 15 comprises an installation box 151, the bottom of the installation box 151 is fixedly connected with the press pin base 1, an ejection rotating shaft 152 is vertically arranged in the installation box 151, and the bottom end of the ejection rotating shaft 152 is in rotating connection with the installation box 151.

The upper portion threaded connection of ejecting pivot 152 has ejecting 153, and the lower part fixedly connected with driven gear 154 of ejecting pivot 152 has solved when the round pin axle is assembled, is inconvenient for installing the round pin axle of different quantity and different length, and assembly accuracy can't effectively be guaranteed, and assembly efficiency is low problem moreover to make the practicality of this utility model stronger.

The ejection assembly 15 further comprises a driving shaft 155, the driving shaft 155 is rotationally connected with the mounting box 151, one side of the driving shaft 155 is fixedly connected with a driving gear 156, the driving gear 156 is in meshed connection with a driven gear 154, the other side of the driving shaft 155 is fixedly connected with a rotary disc 157, one side of the rotary disc 157 away from the driving shaft 155 is fixedly connected with a rotary handle 158, and the ejection assembly 15 is matched with the compression spring 7 to more conveniently assist in resetting of the tool fixture, so that smooth operation of the device is guaranteed.

The two sides of the press pin base 1 are symmetrically fixed with the fixed blocks 16, the top of the fixed blocks 16 is fixedly connected with the guide rods 17, the top ends of the guide rods 17 are fixedly connected with the limiting blocks 18, the upper parts of the guide rods 17 are slidably connected with the guide slide blocks 19, the guide slide blocks 19 are fixedly connected with the upper punch jig 2, the lower pressing operation of the upper punch jig 2 can be assisted by arranging the guide rods 17 and the guide slide blocks 19, meanwhile, the purpose of accurate positioning is achieved, the accuracy of press fitting is improved, the product loss caused by improper operation is reduced, and the production cost is reduced.

Working principle:

before the tool for press mounting the planet carrier and the pin shaft is used, the whole condition of the device needs to be checked first to determine that normal work can be carried out, according to the illustrations of fig. 1-6, firstly, the short pin shaft 12 and the long pin shaft 8 are placed in corresponding positioning holes of the centering jig 11, when the planet carrier body 13 is pressed downwards by the upper punch jig 2, the middle long pin shaft 8 starts to enter the planet carrier body 13, the long pin shaft 8 enters the planet carrier body 13 to the expected height through the interaction of the long pin shaft positioning jig 6 and the short pin shaft placing jig 9, the upper punch jig 2 continuously presses downwards, the short pin shaft 12 is pressed into the planet carrier body 13, meanwhile, the long pin shaft 8 penetrates into the planet carrier body 13 again to complete the press pin of the planet carrier body 13, when the upper punch jig 2 ascends, the external force of the compression spring 7 is cancelled, and the short pin shaft placing jig 9 ascends to eject a product, so that the product is conveniently taken out.

The rotary table 157 and the driving shaft 155 are driven to rotate through the rotary handle 158, the driving shaft 155 drives the driving gear 156 to rotate, the driving gear 156 drives the driven gear 154 and the ejection rotating shaft 152 to rotate, the ejection rotating shaft 152 rotates to enable the ejection piece 153 to ascend, the ejection piece 153 extrudes the auxiliary sliding block 141 to ascend, the auxiliary sliding block 141 drives the short pin shaft placing jig 9 to ascend, and then the effect of assisting product ejection is achieved, and the use is more convenient.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a frock of planet carrier and round pin axle pressure equipment, includes press pin base (1), long round pin axle (8), short round pin axle (12) and installs upper punch tool (2) in press pin base (1) top, hydraulic cylinder (3) are installed to the top symmetry of upper punch tool (2);

the upper part of the upper punch jig (2) is provided with a placing groove (4), the bottom of the upper punch jig (2) is provided with a pin pressing groove (5), the middle of the inside of the pin pressing base (1) is fixedly connected with a long pin positioning jig (6), and one side of the top of the pin pressing base (1) is provided with an ejection assembly (15);

characterized by further comprising:

the outer side of the long pin shaft positioning jig (6) is sleeved with a compression spring (7), and the bottom of the long pin shaft (8) is attached to the top end of the long pin shaft positioning jig (6);

wherein a short pin shaft placing jig (9) is arranged above the long pin shaft positioning jig (6), and a jig groove (10) is formed in the short pin shaft placing jig (9);

the top of the short pin shaft placement jig (9) is provided with a centering jig (11), and a positioning hole is formed in the centering jig (11).

2. The tooling for press fitting of a planet carrier and a pin shaft according to claim 1, wherein: compression spring (7) are located between short round pin axle placement jig (9) and long round pin axle location jig (6), long round pin axle (8) and jig groove (10) sliding connection, planet carrier body (13) are installed at the top of centering jig (11), long round pin axle groove (131) have been seted up at the middle part of planet carrier body (13), short round pin axle groove (132) have evenly been seted up to the inside of planet carrier body (13).

3. The tooling for press fitting of a planet carrier and a pin shaft according to claim 2, wherein: the long pin shaft (8) is connected with the long pin shaft groove (131) in an adapting mode, the short pin shaft (12) is connected with the short pin shaft groove (132) in an adapting mode, the long pin shaft groove (131) and the short pin shaft groove (132) are in one-to-one correspondence with the positioning holes, and the height of the short pin shaft placing jig (9) is designed according to the height difference on the matched planet carrier body (13).

4. The tooling for press fitting of a planet carrier and a pin shaft according to claim 1, wherein: the upper portion of press pin base (1) has seted up first spout (14), one side fixedly connected with auxiliary slide block (141) of tool (9) is placed to the short round pin axle, auxiliary slide block (141) and first spout (14) sliding connection, ejecting subassembly (15) are including install bin (151), the bottom and the press pin base (1) fixed connection of install bin (151), ejecting pivot (152) are vertically installed to the inside of install bin (151).

5. The tooling for press fitting of the planet carrier and the pin shaft according to claim 4, wherein: the bottom of ejecting pivot (152) rotates with install bin (151) to be connected, the upper portion threaded connection of ejecting pivot (152) has ejecting piece (153), the lower part fixedly connected with driven gear (154) of ejecting pivot (152).

6. The tooling for press fitting of the planet carrier and the pin shaft according to claim 5, wherein: the ejection assembly (15) further comprises a driving shaft (155), the driving shaft (155) is rotationally connected with the mounting box (151), a driving gear (156) is fixedly connected to one side of the driving shaft (155), the driving gear (156) is in meshed connection with the driven gear (154), a rotary table (157) is fixedly connected to the other side of the driving shaft (155), and a rotary handle (158) is fixedly connected to one side, far away from the driving shaft (155), of the rotary table (157).

7. The tooling for press fitting of a planet carrier and a pin shaft according to claim 1, wherein: the automatic punching device is characterized in that fixing blocks (16) are symmetrically fixed on two sides of the press pin base (1), a guide rod (17) is fixedly connected to the top of the fixing blocks (16), a limiting block (18) is fixedly connected to the top end of the guide rod (17), a guide sliding block (19) is slidably connected to the upper portion of the guide rod (17), and the guide sliding block (19) is fixedly connected with the punching jig (2).