CN219004290U

CN219004290U - Internal tooth processing tool is inserted in chip removal

Info

Publication number: CN219004290U
Application number: CN202223190958.0U
Authority: CN
Inventors: 黄伟强; 龙腾波; 甘香泉; 黄杰
Original assignee: Zhuhai Junxing Electromechanical Co ltd
Current assignee: Zhuhai Junxing Electromechanical Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-12
Anticipated expiration: 2032-11-30

Abstract

The utility model provides a chip removal and internal tooth insertion processing jig, belongs to the technical field of jigs, and solves the problem that accumulation of scraps causes adverse effects on gear shaping processing of products. The key points of the technical scheme are as follows: including lower mould and last mould, fix the work piece on the third die cavity of last mould to be equipped with first through-hole in the bottom of third die cavity, when the gear shaping produced the piece, can enter into on the third die cavity of lower mould through first through-hole, because the directional orifice of second through-hole of axis of first through-hole, so the piece can follow the second through-hole and discharge, and then to a great extent's solution piece has to the adverse effect of gear shaping processing.

Description

Internal tooth processing tool is inserted in chip removal

Technical Field

The utility model relates to the technical field of jigs, in particular to a chip removal internal tooth inserting processing jig.

Background

The existing gear internal tooth gear shaping processing jig in the market is complex in structure and high in production cost, meanwhile, the chip removal performance of the die is poor in the processing and using process, chips cannot be discharged in time in the processing process of the die, the chips are accumulated, and excessive chips are accumulated, so that the chips are attached to tooth surfaces and cutters, the processing precision of the tooth surfaces is affected, the abrasion of the cutters is accelerated, and the service life of the cutters is affected; secondly, the accumulation of piece can make the positioning accuracy of product in the processing clamping in-process worsen to make the fixed effect of product not enough, and then it is eccentric to then the easy clamping in the course of working, seriously influences the machining precision of gear, leads to the product qualification rate that the processing was come out low, and from this, the accumulation of piece causes the adverse effect to the processing of product very easily.

Disclosure of Invention

The utility model aims to provide a chip removal internal tooth inserting machining jig which aims to solve the problems set forth in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: including lower mould and last mould, the inside of lower mould is equipped with first die cavity and second die cavity, the top of going up the mould is equipped with the clamp head, the upper portion of clamp head is hugged closely the lateral wall of first die cavity, be equipped with the third die cavity that is used for placing the work piece on the clamp head, the bottom of third die cavity is equipped with first through-hole, the lower part of clamp head is located in the second die cavity, the lateral wall of second die cavity with there is the clearance between the clamp head, be equipped with the second through-hole on the lower part lateral wall of second die cavity, the second through-hole runs through the lower mould, the axis of first through-hole is directional the drill way of second through-hole.

Further, the clamping head further comprises a pull rod, the bottom of the clamping head is fixedly connected with a moving rod, the moving rod is in clearance fit with the lower die, and the lower end of the moving rod is in threaded connection with the upper end of the pull rod.

Further, the lower die is further provided with a limiting hole, a limiting bolt is arranged on the limiting hole, a pressing groove is formed in the moving rod, and the limiting hole is opposite to the pressing groove.

Further, the upper end of the pull rod is in clearance fit with the lower die.

Further, the clamping head is of an inverted cone shape, a clamping groove is formed in the clamping head, the clamping groove penetrates through the clamping head, and sealing glue is filled in the clamping groove.

Further, the lower die comprises a fixing plate fixedly connected to the lower end of the lower die, and a plurality of fixing grooves are formed in the fixing plate.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the first through hole is arranged on the third cavity for placing the workpiece, when scraps are generated by the gear shaping, the scraps enter the second cavity through the first through hole, and as the axis of the first through hole points to the orifice of the second through hole, most scraps can be discharged from the second through hole, so that the adverse effect of the scraps on the gear shaping processing is solved to a great extent; in addition, the design of second die cavity firstly can store the piece of not discharging, secondly forms the clearance with the clamp head for the clamp head can not appear the risk of card bits, thereby further reduced the influence of piece to the gear shaping processing.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the upper die structure of the present utility model;

FIG. 3 is a schematic view of a lower die in partial cross section of the present utility model;

wherein: 1. a workpiece; 2. an upper die; 210. a clamping head; 21. a clamping groove; 22. a third cavity; 23. a first through hole; 24. a compaction groove; 25. a moving rod; 26. sealing glue; 3. a lower die; 31. a second cavity; 32. a second through hole; 33. a first cavity; 34. a limiting hole; 4. a fixing plate; 41. a fixing groove; 5. a pull rod; 6. and a limit bolt.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Examples: referring to fig. 1-3, a tool for processing internal teeth capable of removing chips comprises a lower die 3 and an upper die 2, wherein a first cavity 33 and a second cavity 31 are arranged in the lower die 3, a clamping head 210 is arranged at the top of the upper die 2, in this embodiment, the lower end of the upper die 2 can be connected with a cylinder, and the upper die 2 is moved downwards by starting the cylinder, so that the upper part of the clamping head 210 is tightly attached to the side wall of the first cavity 33; the clamping head 210 is provided with a third cavity 22 for placing a workpiece, and the workpiece 1 is arranged on the clamping head 210 through the third cavity 22; the bottom of the third cavity 22 is provided with a first through hole 23, the lower part of the clamping head 210 is positioned in the second cavity 31, so that scraps generated by gear shaping enter the second cavity 31 through the first through hole 23, and in addition, four first through holes 23 distributed circumferentially are arranged in the embodiment, so that the scraps generated after gear shaping have enough transferring space; a gap exists between the side wall of the lower part of the second cavity 31 and the clamping head 210, and the second cavity 31 has the functions of storing scraps generated after gear shaping and forming a gap with the clamping head 210, so that the clamping head 210 cannot influence the movement of the scraps due to the adhesion of the scraps, and the adverse influence of the scraps on gear shaping processing is reduced; the second through holes 32 are arranged on the side wall of the second cavity 31, the second through holes 32 penetrate through the lower die 3, the axes of the first through holes 23 point to the orifices of the second through holes 32, four second through holes 32 which are distributed circumferentially are arranged in the embodiment, each second through hole 32 is aligned with one first through hole 23, so that after chips generated by gear shaping come out of the first through holes 23, a large part of chips are discharged from the second through holes 32 into the jig of the utility model, the influence of the chips on gear shaping is greatly reduced, and in addition, the orifices of the second through holes 32 close to the lower die 3 are slightly higher than the bottom of the second cavity 31, so that a small amount of chips stored in the second cavity 31 can be discharged from the third through holes 32 without being stacked too high.

The lower end of the movable rod 25 is in threaded connection with the upper end of the pull rod 5, and the threaded connection ensures that the movable rod 25 moves while the pull rod 5 moves; in this embodiment, the bottom of the pull rod 5 may be connected with an air cylinder, and the air cylinder is started, so that the pull rod 5 moves, and the clamping head 210 can be driven to move downwards, so that the clamping head 210 is tightly attached to the inner wall of the first cavity 33; the upper end of the pull rod 5 is embedded into the bottom of the lower die 3, and the pull rod 5 is in clearance fit with the lower die 3, so that the structure of the utility model is more compact.

The clamping head 210 is in an inverted cone shape, the clamping head 210 is provided with the clamping groove 21, the clamping groove 21 penetrates through the clamping head 210, the taper of the clamping head 210 is the same as that of the inner wall of the first cavity 33, the diameter of the clamping head 210 is slightly larger than that of the inner wall of the first cavity 33, the inverted cone shape and the design of the clamping groove 21 enable the clamping head 210 to gradually reduce the diameter of the clamping head 210 while moving downwards, further clamping the workpiece 1 on the third cavity 22, gear shaping processing can be carried out, and the sealing glue 26 is filled in the clamping groove 21, so that chips are prevented from entering the clamping groove 21 while ensuring that the diameter of the clamping head 210 is variable, and further processing of products is affected; in this embodiment, the material of the clamping head 210 may be selected to be an elastic material, for example, 65Mn, so that the clamping head 210 can clamp the workpiece 1 with a certain elasticity while ensuring that the fixture has a certain strength; in addition, four clamping grooves 21 are circumferentially distributed, so that the clamping heads 210 are divided into four blocks, sealing glue 26 is arranged in each clamping groove 21, and the clamping heads 210 divided into four blocks are fixedly connected with the upper ends of the movable rods 25, so that the diameters of the clamping heads 210 can be uniformly contracted when the clamping heads move downwards, the workpieces 1 are subjected to uniform clamping force, and the quality of gear shaping operation is improved.

The fixture of the utility model can be installed on a workbench of the gear shaping by bolts through the fixing grooves 41 on the fixing plate 4, so that the flexibility of the fixture is ensured.

The lower die 3 is further provided with a limiting hole 34, the limiting hole 34 can be a countersunk threaded hole, the limiting bolt 6 is installed on the limiting hole 34, the pressing groove 24 is formed in the moving rod 25, the limiting hole 34 faces the pressing groove 24, the end portion of the limiting bolt 6 presses the bottom of the pressing groove 24, when the clamping head 210 is tightly attached to the inner wall of the first cavity 33, on one hand, the moving rod 25 can be fixed on the lower die 3 by tightening the limiting bolt 6, the clamping head 210 and the first cavity 33 are tightly attached to each other, further clamping of the workpiece 1 is guaranteed, feasibility of gear shaping machining is guaranteed, on the other hand, dislocation of the first through hole 23 and the second through hole 32 is prevented, and further most of chips generated due to gear cutting can be directly discharged from the second through hole 32.

Principle of operation

Firstly, the jig is fixedly connected to the workbench through the fixing plate 4, then the workpiece 1 is placed into the third cavity 22, then the pull rod 5 is pulled to move downwards, the clamping head 210 is contracted and clamps the workpiece 1, the limit bolt 6 is screwed after clamping, the moving rod 25 is fixed, the workpiece 1 is in a clamping state, then the workpiece 1 is subjected to gear shaping, generated scraps fall into the second cavity 31 from the first through hole 23, a large part of scraps are discharged through the second through hole 32, a small amount of scraps are remained on the second cavity 31, when the scraps are piled up to a certain amount after gear shaping, the piled scraps can be swept out of the second cavity 31 through the second through hole 32 conveniently and manually, and therefore the jig reduces the influence of the scraps on gear shaping processing.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," "front," "back," and the like are used herein for illustrative purposes only.

Claims

1. But chip removal inserts internal tooth processing tool, its characterized in that: including lower mould (3) and last mould (2), the inside of lower mould (3) is equipped with first die cavity (33) and second die cavity (31), the top of going up mould (2) is equipped with clamp head (210), the upper portion of clamp head (210) is hugged closely the lateral wall of first die cavity (33), be equipped with on clamp head (210) and be used for placing third die cavity (22) of work piece, the bottom of third die cavity (22) is equipped with first through-hole (23), the lower part of clamp head (210) is located in second die cavity (31), the lateral wall of second die cavity (31) with there is the clearance between clamp head (210), be equipped with second through-hole (32) on the lower part lateral wall of second die cavity (31), second through-hole (32) run through lower mould (3), first through-hole (23) are with second die cavity (31) and third die cavity (22) intercommunication and its axis point to the drill way of second through-hole (32).

2. The chip removal internal tooth inserting machining jig according to claim 1, wherein: the clamping head is characterized by further comprising a pull rod (5), wherein a movable rod (25) is fixedly connected to the bottom of the clamping head (210), the movable rod (25) is in clearance fit with the lower die (3), and the lower end of the movable rod (25) is in threaded connection with the upper end of the pull rod (5).

3. The chip removal internal tooth inserting machining jig according to claim 2, wherein: the lower die (3) is further provided with a limiting hole (34), a limiting bolt (6) is arranged on the limiting hole (34), a pressing groove (24) is formed in the moving rod (25), and the limiting hole (34) is opposite to the pressing groove (24).

4. The chip removal internal tooth inserting machining jig according to claim 2, wherein: the upper end of the pull rod (5) is in clearance fit with the lower die (3).

5. The chip removal internal tooth inserting machining jig according to claim 1, wherein: the clamping head (210) is of an inverted cone shape, a clamping groove (21) is formed in the clamping head (210), the clamping groove (21) penetrates through the clamping head (210), and sealing glue (26) is filled in the clamping groove (21).

6. The chip removal internal tooth inserting machining jig according to claim 1, wherein: the die further comprises a fixing plate (4), wherein the fixing plate (4) is fixedly connected to the lower end of the lower die (3), and a plurality of fixing grooves (41) are formed in the fixing plate (4).