CN217019519U

CN217019519U - Positioning tool for machining

Info

Publication number: CN217019519U
Application number: CN202220025773.5U
Authority: CN
Inventors: 王海涛; 刘自林; 王敬; 徐平宗
Original assignee: Ningbo Top Chassis System Co ltd
Current assignee: Ningbo Top Chassis System Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-07-22
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a positioning tool for machining, which comprises a positioning base plate, wherein a main positioning seat is arranged on the positioning base plate, and a press-mounting mechanism is correspondingly arranged on the main positioning seat. The device has the advantages of simple structure and effectively improved processing efficiency on the basis of ensuring the processing quality of the workpiece.

Description

Positioning tool for machining

Technical Field

The utility model relates to a positioning tool, in particular to a positioning tool for machining.

Background

For some specific parts a1 of some workpieces a (as shown in fig. 1), not only two parallel end surfaces a2 opposite to each other in front and back of the specific part a1 are milled, but also through holes A3 penetrating from front to back are processed in the specific parts a1, and for simultaneous milling of two parallel end surfaces a2 opposite to each other in front and back of the workpieces a, in order to avoid a processing surface, the workpieces a are positioned and clamped by a positioning tool for machining which is composed of a positioning seat cushioned below the workpieces a and a press-fitting mechanism pressed above the workpieces a, and when the positioning tool is used for machining the through holes A3, because the front end or the rear end has no corresponding supporting stress point, the workpieces a are displaced during drilling, so that the position degree of the through holes A3 is unstable, and at this time, the two flat end surfaces a1 are milled by one process in the conventional operation, the through hole A3 is machined through additional clamping in a next sequence, and the operation needs to be repeatedly clamped for machining the same workpiece A, so that the efficiency is low.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a positioning tool for machining, which is simple in structure and can effectively improve the machining efficiency.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a location frock is used in machining, includes the positioning substrate, the positioning substrate on be provided with and be used for carrying out the main positioning seat that supports to the position of treating of work piece, the main positioning seat on correspond and be provided with and be used for the cooperation the main positioning seat press fitting mechanism that presss from both sides tight fixed to the work piece, the main positioning seat on be provided with the corner hydro-cylinder, the corner hydro-cylinder include cylinder body, piston rod and pressure arm, the cylinder body setting be in the main positioning seat in, the piston rod can stretch out and draw back and rotationally set up the cylinder body in, the pressure arm set up at the preceding terminal surface or the rear end face of work piece, the pressure arm include installation department and clamping part, the installation department fix set up the piston rod outwards stretch out the end of cylinder body on make the clamping part along with the piston rod synchronous motion.

The main positioning seat is provided with a main positioning block in a protruding mode. Realize the stable positioning and supporting of the workpiece during processing.

The positioning base plate is provided with an auxiliary positioning seat for supporting other parts of the workpiece, and the auxiliary positioning seat is provided with the press-mounting mechanism for clamping and fixing the workpiece by matching with the auxiliary positioning seat. The stable positioning and clamping of the whole workpiece are realized.

And an auxiliary positioning block is arranged on the auxiliary positioning seat in an upward protruding manner. And the other parts of the workpiece are stably positioned and supported.

The positioning base plate is provided with a side positioning seat for supporting the side of the workpiece, a side supporting convex block is convexly arranged on the side part of the side positioning seat close to the side end face of the workpiece, and the side supporting convex block is abutted to the corresponding side end face of the workpiece. The side part positioning seat supports the side part of the workpiece, and plays a role in auxiliary support of the workpiece during machining.

The press-fitting mechanism comprises a press-fitting block and a press-fitting driving oil cylinder, wherein the cylinder body of the press-fitting driving oil cylinder is fixedly arranged on the positioning base plate, the press-fitting driving oil cylinder is provided with a driving piston rod which can vertically move up and down, the two ends of the press-fitting block are respectively provided with a mounting end and a press-fitting end, the mounting ends are rotatably arranged on the driving piston rod, the cylinder body of the press-fitting driving oil cylinder is convexly provided with a connecting seat, the connecting seat is arranged below the press-fitting block, a rotating connecting rod is arranged between the connecting seat and the press-fitting block, the number of the rotating connecting rods is two, the two rotating connecting rods are respectively arranged on the two side parts of the press-fitting block and the connecting seat, the lower end of each rotating connecting rod is rotatably arranged on the side part of the connecting seat, and the upper end of each rotating connecting rod is rotatably arranged on the side part of the press-fitting block, the upper end of the rotating connecting rod is positioned between the mounting end and the press-fitting end at the mounting position of the press-fitting block. The press-fitting mechanism is simple in structure, convenient to operate and stable in press fitting.

Compared with the prior art, the utility model has the advantages that: when the end face to be machined needs to be milled, the piston rod stretches out and rotates to drive the pressing portion to avoid the end face to be machined, when the end face to be machined needs to be punched, the piston rod rotates and retracts to enable the pressing portion to avoid a punching position to press the end face to be arranged on the front end face or the rear end face of a corresponding workpiece, the punching machining direction is the end face which is formed by pressing the end face from the pressing portion and faces to the end face pressed by the pressing portion, multiple clamping on the workpiece is not needed, and on the basis of ensuring the machining quality of the workpiece, the machining efficiency is effectively improved.

Drawings

FIG. 1 is a schematic structural diagram of a part to be machined according to the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic perspective view of the through hole of the clamping workpiece according to the present invention;

FIG. 4 is a schematic structural view of a corner cylinder according to the present invention;

fig. 5 is a schematic perspective view of a clamped workpiece when milling a flat end surface according to the present invention.

Detailed Description

The utility model is described in further detail below with reference to the following examples of the drawings.

As shown in the figures, the positioning tool for machining comprises a positioning base plate 1, wherein a main positioning seat 2 used for supporting a to-be-machined portion of a workpiece a is arranged on the positioning base plate 1, a press-mounting mechanism 4 used for being matched with the main positioning seat 2 to clamp and fix the workpiece a is correspondingly arranged on the main positioning seat 2, an angle oil cylinder 5 is arranged on the main positioning seat 2, the angle oil cylinder 5 comprises a cylinder body 51, a piston rod 52 and a pressing arm 53, the cylinder body 51 is arranged in the main positioning seat 2, the piston rod 52 can stretch back and forth and is rotatably arranged in the cylinder body 51, the pressing arm 53 is arranged on the front end face or the rear end face of the workpiece a, the pressing arm 53 comprises an installation portion 531 and a pressing portion 532, the installation portion 531 is fixedly arranged on the end, extending out of the cylinder body 51, of the piston rod 52, and the pressing portion 532 can synchronously move along with the piston rod 52.

In this embodiment, a main positioning block 21 is protruded from the main positioning seat 2. And stable positioning support for the workpiece A is realized.

In this embodiment, the positioning substrate 1 is provided with an auxiliary positioning seat 6 for supporting another part of the workpiece a, and the auxiliary positioning seat 6 is provided with a press-fitting mechanism 4 for clamping and fixing the workpiece a in cooperation with the auxiliary positioning seat 6. The stable positioning and clamping of the whole workpiece A are realized.

In this embodiment, an auxiliary positioning block 61 is protruded upward from the auxiliary positioning seat 6. And stable positioning support for other parts of the workpiece A is realized.

In this embodiment, the positioning substrate 1 is provided with a side positioning seat 7 for supporting a side of the workpiece a, a side protruding block 71 is convexly provided on a side of the side positioning seat 7 close to a side end face of the workpiece a, and the side protruding block 71 abuts against a corresponding side end face of the workpiece a. The side positioning seat 7 supports the side of the workpiece a, and thus, the side positioning seat plays a role of auxiliary support during processing of the workpiece a.

In this embodiment, the press-fitting mechanism 4 includes a press-fitting block 41 and a press-fitting driving cylinder, a cylinder body 421 of the press-fitting driving cylinder is fixedly disposed on the positioning substrate 1, the press-fitting driving cylinder has a driving piston rod 422 capable of vertically moving up and down, two ends of the press-fitting block 41 are a mounting end 411 and a press-fitting end 412, the mounting end 411 is rotatably disposed on the driving piston rod 422, a connecting seat 43 is convexly disposed on the cylinder body 421 of the press-fitting driving cylinder, the connecting seat 43 is disposed below the press-fitting block 41, a rotating link 8 is disposed between the connecting seat 43 and the press-fitting block 41, two rotating links 8 are provided, the two rotating links 8 are respectively disposed on two side portions of the press-fitting block 41 and the connecting seat 43, a lower end of the rotating link 8 is rotatably disposed on a side portion of the connecting seat 43, an upper end of the rotating link 8 is rotatably disposed on a side portion of the press-fitting block 41, and an upper end of the rotating link 8 is located between the mounting end 411 and the press-fitting end 412 at a mounting position of the press-fitting block 41. The press-fitting mechanism 4 is simple in structure, convenient to operate and stable in press fitting.

Claims

1. A positioning tool for machining comprises a positioning base plate, wherein a main positioning seat for supporting a part to be machined of a workpiece is arranged on the positioning base plate, the main positioning seat is correspondingly provided with a press-mounting mechanism which is used for being matched with the main positioning seat to clamp and fix a workpiece, it is characterized in that the main positioning seat is provided with a corner oil cylinder, the corner oil cylinder comprises a cylinder body, a piston rod and a pressure arm, the cylinder body is arranged in the main positioning seat, the piston rod can be stretched back and forth and can be rotationally arranged in the cylinder body, the pressure arm is arranged on the front end surface or the rear end surface of the workpiece and comprises an installation part and a pressing part, the mounting part is fixedly arranged on the end head of the cylinder body, which is extended out of the piston rod, so that the pressing part moves synchronously along with the piston rod.

2. The tooling of claim 1 wherein the primary locating seat is provided with a primary locating block.

3. The tooling of claim 1 wherein the fixture base plate has an auxiliary positioning seat for supporting other parts of the workpiece, and the auxiliary positioning seat has the press-fitting mechanism for engaging the auxiliary positioning seat to clamp and fix the workpiece.

4. The tooling of claim 3 wherein the auxiliary positioning seat is provided with an auxiliary positioning block protruding upward.

5. The tooling of claim 1, wherein the positioning base plate has a side positioning seat for supporting a side of the workpiece, and a side protrusion protruding from the side positioning seat near a side surface of the workpiece abuts against a corresponding side surface of the workpiece.

6. The positioning tool for machining according to claim 1 or 3, wherein the press-fitting mechanism includes a press-fitting block and a press-fitting driving cylinder, a cylinder body of the press-fitting driving cylinder is fixedly disposed on the positioning substrate, the press-fitting driving cylinder has a driving piston rod capable of vertically moving up and down, two ends of the press-fitting block are respectively a mounting end and a press-fitting end, the mounting ends are rotatably disposed on the driving piston rod, a connecting seat is convexly disposed on the cylinder body of the press-fitting driving cylinder, the connecting seat is disposed below the press-fitting block, two rotating connecting rods are disposed between the connecting seat and the press-fitting block, the two rotating connecting rods are respectively disposed on two side portions of the press-fitting block and the connecting seat, and lower ends of the rotating connecting rods are rotatably disposed on side portions of the connecting seat, the upper end of the rotating connecting rod is rotatably arranged on the side part of the press fitting block, and the upper end of the rotating connecting rod is positioned between the mounting end and the press fitting end at the mounting position of the press fitting block.