WO2023010734A1

WO2023010734A1 - Reducer semi-camshaft accompanying tooling

Info

Publication number: WO2023010734A1
Application number: PCT/CN2021/135906
Authority: WO
Inventors: 陈维群; 陈思
Original assignee: 盐城京奇刀具有限公司
Priority date: 2021-08-06
Filing date: 2021-12-07
Publication date: 2023-02-09
Also published as: CN113579750B; CN113579750A; LU503244B1

Abstract

A reducer semi-camshaft accompanying tooling, comprising a tooling body (1), a T-shaped square positioning guide column (2), a square positioning pressing block (3), a locking gasket (4), and a locking nut (5). The tooling body (1) comprises a distance plate (101), a boss (102), and a cylindrical shaft (103). The T-shaped square positioning guide column (2) comprises a T-shaped head (201) and a square guide column (202). During assembling, reference surfaces (601) of workpieces (6) abut against the distance plate (101); the circular boss (102) is matched with central holes (602) of the workpieces (6); the T-shaped square positioning guide column (2) is inserted into a square through hole of the boss; the square positioning pressing block (3) is locked by means of the locking nut (5); and rectangular through slots (603) are formed in the workpieces (6), and are in clearance fit with the side surfaces of the T-shaped head (201) and the square positioning pressing block (3). In this way, two paired reducer semi-camshafts can be combined and mounted on an accompanying tooling, sequentially subjected to rough turning of external cylinder and fine turning machining as a whole, and then transferred to a grinder for fine grinding. Repeated disassembling and assembling are not required between respective machining steps, such that machining precision is high, and efficiency is high.

Description

A reducer semi-camshaft accompanying tooling

technical field

The invention relates to the technical field of tooling fixtures for machine tools, in particular to a semi-camshaft accompanying tooling for a reducer.

Background technique

In the cutting process, the installed workpiece is automatically transported and transferred between the stations with the machine tool fixture. Accompanying tooling is mainly used in automatic production lines such as automatic production lines, machining centers, and flexible manufacturing systems for workpieces with irregular shapes that are not convenient for automatic positioning, clamping, and transportation. After the workpiece is installed and positioned on the accompanying tooling, the accompanying tooling is transported to each station by the transport device. The accompanying tooling is generally positioned on the machine tool with its bottom plane and two positioning holes, and is clamped by the clamping mechanism of the machine tool table, so as to ensure the relative position of the workpiece and the tool. When the machining accuracy of the workpiece is required to be high, the bottom plane of the accompanying tooling is often divided into a positioning base surface and a transportation base surface to protect the accuracy of the positioning base surface. Accompanying tooling belongs to the scope of special fixtures, and the part for clamping the workpiece must be designed according to the shape and process requirements of the workpiece.

As shown in Figure 8, a reducer semi-camshaft, two as a group, used as a pair, the circumference of both ends of the camshaft needs to be processed with high precision during processing, and rough turning, fine turning, and grinding of the outer circle are required. The semi-camshaft of the block reducer is processed separately, and each process needs to be clamped once, which is inefficient and the processing accuracy is not high.

technical problem

The problem to be solved by the present invention is: in the prior art, the efficiency of machining the circumference of the two ends of the half camshaft of the reducer is low, and the machining accuracy is not high, and manual operation is mostly used, and the operation efficiency is low. A kind of accompanying tooling for the half camshaft of the reducer .

technical solution

The present invention is realized through the following technical scheme, a half-camshaft accompanying tooling of a reducer, including a main body of the tooling, a T-shaped square positioning guide post, a square positioning pressure block, a locking washer, and a locking nut;

The main body of the tooling includes a distance plate, a boss, and a cylindrical shaft; the distance plate is square, and the upper and lower sides are parallel, and the distance plate is provided with a circular boss at the center of the upper and lower sides. The axis is perpendicular to the upper and lower planes of the distance plate, and the circular boss is provided with a square through hole, and the left and right sides of the distance plate extend outward with cylindrical shafts, the axis of the cylindrical shaft and the upper and lower planes of the distance plate The two planes are parallel, the axis of the cylindrical shaft intersects the axis of the circular boss,

The T-shaped square positioning guide post includes a T-shaped head and a square guide post. The shape of the T-shaped head is consistent with the shape of the square positioning press block, and the end of the square guide post is provided with a threaded hole; the center of the square positioning press block With square through holes,

During assembly, the reference plane of the workpiece and the upper and lower planes of the distance plate are in contact, the circular boss matches the center hole of the workpiece, the T-shaped square positioning guide post is inserted from bottom to top, and the square guide post and the convex The square through hole of the table is matched, the square positioning block is sleeved on the square guide column, and locked by the lock washer and the lock nut, and the workpiece is provided with a rectangular slot for positioning and clamping. The bottom surface of the rectangular through groove is parallel to the reference plane, the bottom surface of the rectangular through groove is respectively offset against the T-shaped head and the square positioning pressing block, and the side clearance between the side of the rectangular through groove and the T-shaped head and the square positioning pressing block Cooperate.

Further, the main body of the tooling and the T-shaped square positioning guide post are all integrally processed and formed.

Further, the root of the boss is provided with an undercut.

Further, the cylinder shaft is provided with a thimble hole for fixing the thimble.

Beneficial effect

1. The present invention can combine and install two matching half-camshafts of the reducer on the accompanying tooling. As a whole, the rough turning and finishing turning of the outer circle are carried out sequentially, and then transferred to the grinding machine for fine grinding. After each processing step There is no need to repeatedly disassemble and assemble, and the processing precision is high and the efficiency is high.

2. The distance plate of the main body of the frock of the present invention cooperates with the T-shaped square positioning guide column and the square positioning briquetting block to limit the vertical movement and X-axis rotation and Y-axis rotation of the half camshaft of the reducer. The X-axis movement and Y-axis movement of the half camshaft are restricted, and the T-shaped head and square positioning block cooperate with the rectangular through slot to restrict the Z-axis rotation of the half camshaft. The structure is simple and the installation accuracy is high.

Description of drawings

Fig. 1 is a three-dimensional view of a half camshaft accompanying tool of a reducer according to the present invention;

Fig. 2 is a top view of a half camshaft accompanying tool of a reducer according to the present invention;

Fig. 3 is a sectional view at A-A place in Fig. 2;

Fig. 4 is a sectional view at B-B place in Fig. 2;

Fig. 5 is a three-view view of the tooling main body;

Fig. 6 is a structural schematic diagram of a T-shaped square positioning guide post and a square positioning briquetting block;

Fig. 7 is a schematic diagram of connection between a T-shaped square positioning guide post and a square positioning pressing block;

Figure 8 is a schematic diagram of the structure of the workpiece.

In the picture:

1 main body of tooling; 101 distance plate; 102 boss; 103 cylindrical shaft; 104 relief groove; 105 thimble hole; Lock washer; 5 lock nut; 6 workpiece; 601 reference plane; 602 center hole; 603 rectangular slot.

Embodiments of the present invention

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1-8, the present invention provides a semi-camshaft accompanying tool for a reducer, including a tool body 1, a T-shaped square positioning guide post 2, a square positioning pressure block 3, a lock washer 4, and a lock nut 5 ;

The tooling main body 1 includes a distance plate 101, a boss 102, and a cylindrical shaft 103; the distance plate 101 is square, and its upper and lower sides are parallel, and the distance plate 101 is provided with a circular boss at the center of its upper and lower sides. 102, the axis of the boss 102 is perpendicular to the upper and lower planes of the spacer plate 101, the circular boss 102 is provided with a square through hole, and the left and right sides of the spacer plate 101 have cylindrical shafts 103 extending outward , the axis of the cylindrical shaft 103 is parallel to the upper and lower planes of the distance plate 101, the axis of the cylindrical shaft 103 intersects the axis of the circular boss 102,

The T-shaped square positioning guide post 2 includes a T-shaped head 201 and a square guide post 202. The shape of the T-shaped head 201 is consistent with the shape of the square positioning pressure block 3, and the end of the square guide post 202 is provided with a threaded hole. ; The center of the square positioning pressing block 3 is provided with a square through hole,

During assembly, the reference plane 601 of the workpiece 6 and the upper plane and the lower plane of the spacer plate 101 are in contact, the circular boss 102 is matched with the central hole 602 of the workpiece 6, and the T-shaped square positioning guide post 2 is arranged from bottom to top. Insert, the square guide post 202 is matched with the square through hole of the boss 102, the square positioning pressure block 3 is sleeved on the square guide post 202, and locked by the lock washer 4 and the lock nut 5, the The workpiece 6 is provided with a rectangular through groove 603 for positioning and clamping, the bottom surface of the rectangular through groove 603 is parallel to the reference plane 601, and the bottom surface of the rectangular through groove 603 is respectively against the T-shaped head 201 and the square positioning pressing block 3 , The sides of the rectangular through slot 603 are in clearance fit with the sides of the T-shaped head 201 and the square positioning block 3 .

In practical applications, in order to ensure structural performance, the tooling main body 1 and the T-shaped square positioning guide post 2 are all integrally processed and formed.

In practical applications, in order to ensure that the workpiece 6 and the spacer plate 101 are in close contact, the root of the boss 102 is provided with an undercut 104 .

In practical applications, in order to facilitate positioning and support with a thimble during processing, the cylindrical shaft 103 is provided with a thimble hole 105 for fixing the thimble.

Working principle of the present invention:

When the present invention is assembled, the reference plane 601 of the workpiece 6 and the upper plane and the lower plane of the spacer plate 101 are offset, and the movement and X of the vertical direction of the workpiece 6 are coordinated with the T-shaped square positioning guide post 2 and the square positioning briquetting block 3. Axis rotation and Y axis rotation are restricted, and the circular boss 102 cooperates with the center hole 602 of the workpiece 6, and the boss 102 restricts the X axis movement and the Y axis movement of the workpiece, and the T-shaped square positioning guide The column 2 is inserted from bottom to top, and the square guide column 202 is matched with the square through hole of the boss 102. The square positioning pressure block 3 is sleeved on the square guide column 202, and is fixed by the lock washer 4 and the lock nut 5. Locking, the workpiece 6 is provided with a rectangular through groove 603 for positioning and clamping, the bottom surface of the rectangular through groove 603 is parallel to the reference plane 601, and the bottom surface of the rectangular through groove 603 is respectively connected to the T-shaped head 201 and the square Positioning briquetting block 3 offsets, and the side of described rectangular through groove 603 and T-shaped head 201 and the side face clearance fit of square locating briquetting block 3, T-shaped head 201 and square locating block 3 match the Z of workpiece by the cooperation of rectangular through groove. The shaft rotation is limited, the structure is simple, and the installation accuracy is high.

The present invention combines and installs two paired half-camshafts of the reducer on the accompanying tooling. As a whole, the rough turning and finishing turning of the outer circle are performed sequentially, and then transferred to the grinding machine for fine grinding. There is no need to repeat the processing steps. Disassembly and assembly, high processing precision and high efficiency.

In summary, the semi-camshaft accompanying tool for a reducer according to the present invention has the advantages of high machining accuracy and high machining efficiency.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention. Protection scope, all equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

A semi-camshaft accompanying tool for a reducer, characterized in that it includes a tool body (1), a T-shaped square positioning guide post (2), a square positioning pressure block (3), a lock washer (4), and a lock nut (5);

The main body (1) of the tooling includes a distance plate (101), a boss (102), and a cylindrical shaft (103); the distance plate (101) is square, and the upper and lower sides are parallel, and the distance plate (101) A circular boss (102) is provided at the center of its upper and lower sides, the axis of the boss (102) is perpendicular to the upper and lower planes of the distance plate (101), and the circular boss (102) is provided with A square through hole, the left and right sides of the spacer plate (101) have a cylindrical shaft (103) extending outward, the axis of the cylindrical shaft (103) is parallel to the upper and lower planes of the spacer plate (101), and the cylindrical shaft The axis of (103) intersects the axis of the circular boss (102),

The T-shaped square positioning guide post (2) includes a T-shaped head (201) and a square guide post (202). The shape of the T-shaped head (201) is consistent with the shape of the square positioning press block (3). The end of the guide post (202) is provided with a threaded hole; the center of the square positioning block (3) is provided with a square through hole,

During assembly, the reference plane (601) of the workpiece (6) and the upper and lower planes of the distance plate (101) are in contact, and the circular boss (102) is matched with the central hole (602) of the workpiece (6), The T-shaped square positioning guide post (2) is inserted from bottom to top, the square guide post (202) is matched with the square through hole of the boss (102), and the square positioning pressing block (3) is sleeved on the square guide post ( 202), and locked by the lock washer (4) and the lock nut (5), the workpiece (6) is provided with a rectangular slot (603) for positioning and clamping, the rectangular slot The bottom surface of (603) is parallel to the reference plane (601), the bottom surface of the rectangular through slot (603) is respectively against the T-shaped head (201) and the square positioning block (3), the rectangular through slot (603) The side clearance fits with the side of the T-shaped head (201) and the square positioning pressure block (3).
The semi-camshaft accompanying tool for reducer according to claim 1, characterized in that: the main body (1) of the tool and the T-shaped square positioning guide post (2) are all integrally processed and formed.
The semi-camshaft accompanying tool for a reducer according to claim 1, characterized in that: the root of the boss (102) is provided with a tool relief groove (104).
The semi-camshaft accompanying tool for a reducer according to claim 1, characterized in that: the cylindrical shaft (103) is provided with a thimble hole (105) for fixing the thimble.