CN216781643U

CN216781643U - Self-centering press pin assembling clamp

Info

Publication number: CN216781643U
Application number: CN202220349556.1U
Authority: CN
Inventors: 岳卫民; 熊朝林; 李露平; 李伟伟; 周鑫; 唐启宜
Original assignee: Ahwit Precision Shanghai Co ltd
Current assignee: Ahwit Precision Shanghai Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-21
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a self-centering pressure pin assembly fixture, which is used for press-fitting a pin sleeve on an assembly main body with a positioning hole and a pin hole which are parallel to each other. The utility model has low requirement on operators, does not generate potential safety hazard on the operators, greatly reduces the labor intensity of the operators and improves the assembly efficiency and the qualification rate.

Description

Self-centering press pin assembling clamp

Technical Field

The utility model relates to the technical field of machining clamps, in particular to a self-centering press pin assembling clamp.

Background

Along with the development of high-end manufacturing, the assembly required precision of spare part is more and more high, traditional anchor clamps can't satisfy the required precision to the assembly part, manual pressure cotter in the past, need hold up the cotter through artifical manual, judge whether the cotter is on a parallel with the pinhole axis through seeing and feeling, can bring the potential safety hazard to the operator during the pressure equipment, and it is high to pressure equipment operating personnel's requirement, pressure equipment operating personnel need through professional training and many years of experience, just can operate, even make so, still can produce the cotter and press oblique defective products, thereby cause direct economic loss for the company.

Accordingly, those skilled in the art have endeavored to develop a self-centering press pin assembly fixture that overcomes the above-identified deficiencies.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to reduce the requirements on operators, reduce the defective products of the pin bushing in the inclined pressing manner, and avoid the economic loss.

In order to achieve the above object, the present invention provides a self-centering press pin assembling jig for press-fitting a pin bush on an assembling body having a positioning hole and a pin hole which are parallel to each other, comprising a jig main body, a positioning seat, a pin bush guide pin, a spring and a plug screw, wherein the jig main body is in a rectangular parallelepiped shape, the positioning seat is provided on the jig main body, a top surface of the positioning seat is fitted to a bottom surface of the assembling body, the positioning seat is provided with a fixing positioning pin and an adjustable positioning pin, the fixing positioning pin is fitted to the positioning hole, the adjustable positioning pin is fitted to the pin hole, the bottom surface of the jig main body is provided with a guide pin hole, the guide pin hole sequentially penetrates through the jig main body, the positioning seat and the adjustable positioning pin, the plug screw is connected to the guide pin hole at the bottom surface of the jig main body, one end of the guide pin of the pin bush is connected to the plug screw through the spring, the other end of the pin sleeve guide pin extends out of the guide pin hole, the pin sleeve guide pin is matched with the pin sleeve, and a part of the pin sleeve guide pin is slidably arranged in the guide pin hole.

Further, the head of the pin bush guide pin is in a truncated cone shape.

Further, the height by which the pin bush guide pin extends out of the guide pin hole is larger than the height of the pin hole of the fitting body.

Further, the positioning seat and the clamp main body are integrally formed.

Further, the positioning seat is welded and fixed on the clamp main body.

Further, the fixed positioning pin is a cylindrical pin.

Further, the fixed locating pin is a chamfered cylindrical pin, the chamfered cylindrical pin comprises a rectangular chamfered surface and a circular arc-shaped binding surface, and the chamfered surface is arranged along the width direction of the clamp body.

Further, the head of the fixing positioning pin is provided with a chamfer.

Further, the adjustable positioning pin comprises a pair of diamond pins symmetrically arranged along the width direction of the clamp main body, inner attaching surfaces of the diamond pins are consistent with inner surfaces of the guide pin holes, and outer attaching surfaces of the diamond pins are matched with inner surfaces of the pin holes of the assembling main body.

Further, the head of the diamond pin is in a frustum pyramid shape.

The utility model has the beneficial effects that: the requirement on operators is not high, potential safety hazards to the operators cannot be generated, the labor intensity of the operators is greatly reduced, and the assembly efficiency and the qualified rate are improved.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic diagram of a preferred embodiment of the present invention in use;

FIG. 2 is an exploded view of a preferred embodiment of the present invention in use;

fig. 3 is a top view of a preferred embodiment of the present invention.

The fixture comprises a fixture body, a mounting body, a pin sleeve, a clamp body, a positioning seat, a pin sleeve guide pin, a spring, a plug screw, a positioning hole, a pin hole, a fixing positioning pin, an adjustable positioning pin, a diamond pin and a guide pin hole, wherein the mounting body is 1-the mounting body, the pin sleeve is 2-the clamp body, the positioning seat is 4-the pin sleeve guide pin, the spring is 6-the plug screw is 7-the positioning hole, the pin hole is 12-the pin hole, the fixing positioning pin is 41-the adjustable positioning pin, the diamond pin is 43-and the guide pin hole is 44-the adjustable positioning pin.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for clarity and understanding of technical contents. The present invention may be embodied in many different forms of embodiments and the scope of the utility model is not limited to the embodiments set forth herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

Examples

As shown in fig. 1, 2 and 3, the present embodiment provides a self-centering press-pin assembling jig for press-fitting a pin bush 2 on an assembling body 1 having a positioning hole 11 and a pin hole 12 which are parallel to each other, the self-centering press-pin assembling jig including a jig body 3, a positioning seat 4, a bush guide pin 5, a spring 6 and a plug screw 7, the jig body 3 having a rectangular parallelepiped shape, the positioning seat 4 provided on the jig body 3, a top surface of the positioning seat 1 matching a bottom surface of the assembling body 1 in shape, the positioning seat 4 provided with a fixing guide pin 41 and an adjustable guide pin 42, the fixing guide pin 41 matching the positioning hole 11, the adjustable guide pin 42 matching the pin hole 12, the jig body 3 having a guide pin hole 44 on a bottom surface thereof, the guide pin hole 44 passing through the jig body 3, the positioning seat 4 and the adjustable guide pin 42 in this order, the plug screw 7 threadedly coupled to the guide pin hole 44 on the bottom surface of the jig body 3, one end of the bush guide pin 5 is connected to the dead bolt 7 via the spring 6, the other end of the bush guide pin 5 extends out of the guide pin hole 44, the bush guide pin 5 is fitted to the bush 2, and a part of the bush guide pin 5 is slidably disposed in the guide pin hole 44. The head (lead-in portion) of the pin bush guide pin 5 has a truncated cone shape to facilitate the nesting of the pin bush 2 into the pin bush guide pin 5.

The height by which the bush guide pin 5 extends out of the guide pin hole 44 is greater than the height of the pin hole 12 of the fitting body 1, whereby, when the fitting body 1 is placed on the positioning socket 4, at least a part of the bush guide pin 5 extends out of the pin hole 12 of the fitting body 1.

The positioning seat 4 and the clamp main body 3 can be integrally formed, or the positioning seat 4 can be separately processed and then fixed on the clamp main body 3 by welding.

The fixing positioning pin 41 may be a cylindrical pin or a chamfered cylindrical pin, as shown in fig. 2 and 3, the chamfered cylindrical pin includes a rectangular chamfered surface and an arc-shaped abutting surface, and the chamfered surface is disposed along the width direction of the clamp body 3.

Preferably, the head (lead-in) of the fixing positioning pin 41 has a chamfer to facilitate the nesting of the positioning hole 11 in the fixing positioning pin 41.

As shown in fig. 2 and 3, the adjustable positioning pin 42 includes a pair of diamond pins 43 symmetrically disposed in the width direction of the jig main body, an inner abutting surface of the diamond pins 43 coincides with an inner surface of the guide pin holes 44, and an outer abutting surface of the diamond pins 43 is engaged with an inner surface of the pin holes 12 of the fitting main body 1.

Preferably, the head (lead-in) of the diamond-shaped pin 43 has a frustum pyramid shape to facilitate the nesting of the pin hole 12 of the fitting body 1 into the diamond-shaped pin 43, and the design of the diamond-shaped pin 43 facilitates the positioning of the pin hole 12 of the fitting body 1.

During the use, the operator firstly places the self-centering press pin assembly fixture on a workbench of a press-fitting machine, then places the assembly main body 1 on the positioning seat 4, sleeves the pin bush 2 into the pin bush guide pin 5, operates a press-fitting machine handle, so that a pressure head of the press-fitting machine aligns with the pin bush 2 and presses down, the pin bush guide pin 5 can synchronously move along with the pin bush 2, and after the press-fitting action of the pin bush 2 is completed, the pin bush guide pin 5 can automatically return to the original position to prepare for press-fitting of the next workpiece.

The main function of the present embodiment is to the spare part that needs the assembly, provide and place the position, and place the position and need put hole axis and the position precision of main part 1 of assembly, the position is placed to the sub-assembly guide pin bushing 2 that needs the pressure equipment provides, and still can guide the accessory to put vertically automatically, it is parallel and concentric with main part hole axis, guide pin 5 of pin bushing can be along with 2 synchronous motion of pin bushing during the pressure equipment, the pressure equipment is accomplished, guide pin 5 of pin bushing can get back to the normal position automatically, do the pressure equipment preparation for next work piece, it is not high to require the operator, and can not produce the potential safety hazard to the operator, very big reduction operator's intensity of labour, very big improvement assembly efficiency and qualification rate.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A self-centering press pin assembling clamp is used for press-fitting a pin bush on an assembling main body with a positioning hole and a pin hole which are parallel to each other, and is characterized by comprising a clamp main body, a positioning seat, a pin bush guide pin, a spring and a plug screw, wherein the clamp main body is in a cuboid shape, the positioning seat is arranged on the clamp main body, the top surface of the positioning seat is matched with the bottom surface of the assembling main body, the positioning seat is provided with a fixed positioning pin and an adjustable positioning pin, the fixed positioning pin is matched with the positioning hole, the adjustable positioning pin is matched with the pin hole, the bottom surface of the clamp main body is provided with a guide pin hole, the guide pin hole sequentially penetrates through the clamp main body, the positioning seat and the adjustable positioning pin, the plug screw is connected into the guide pin hole on the bottom surface of the clamp main body, and one end of the pin bush guide pin is connected with the screw through the spring, the other end of the pin sleeve guide pin extends out of the guide pin hole, the pin sleeve guide pin is matched with the pin sleeve, and a part of the pin sleeve guide pin is slidably arranged in the guide pin hole.

2. The self-centering press pin assembly fixture of claim 1, wherein the head of said bushing guide pin is frustoconically shaped.

3. The self-centering press pin assembling jig as claimed in claim 1, wherein a height of said pin bush guide pin extending out of said guide pin hole is larger than a height of said pin hole of said assembling body.

4. The self-centering press pin assembly fixture of claim 1, wherein said locating socket and said fixture body are integrally formed.

5. The self-centering press pin assembly fixture of claim 1, wherein said locating socket is welded to said fixture body.

6. The self-centering press pin assembly fixture of claim 1, wherein said fixing location pin is a cylindrical pin.

7. The self-centering press pin assembling jig of claim 6, wherein the fixing positioning pin is a chamfered cylindrical pin, the chamfered cylindrical pin includes a rectangular chamfered surface and a circular arc abutting surface, and the chamfered surface is disposed along a width direction of the jig main body.

8. The self-centering press pin assembling jig according to claim 6 or 7, wherein the head portion of the fixing positioning pin has a chamfer.

9. The self-centering press pin assembling jig of claim 1, wherein said adjustable positioning pins comprise a pair of diamond pins symmetrically disposed along the width direction of said jig main body, inner abutting surfaces of said diamond pins are coincident with inner surfaces of said guide pin holes, and outer abutting surfaces of said diamond pins are engaged with inner surfaces of said pin holes of said assembling main body.

10. The self-centering press pin assembly fixture of claim 9, wherein the diamond pin head is frustum-shaped.