CN209918787U

CN209918787U - Punch press for forcing spring

Info

Publication number: CN209918787U
Application number: CN201920394454.XU
Authority: CN
Inventors: 屠富杰
Original assignee: Zhejiang Fuchun Spring Co Ltd
Current assignee: Zhejiang Fuchun Spring Co Ltd
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-01-10
Anticipated expiration: 2029-03-26

Abstract

The utility model discloses the technical field of spring processing equipment, and discloses a punch press for spring pressure, which comprises a supporting table, wherein the supporting table is provided with at least two mutually parallel stand columns, one ends of the stand columns, which are far away from the supporting table, are fixedly provided with hydraulic cylinders, piston rods of the hydraulic cylinders are fixedly provided with pressure plates, the supporting table is provided with a positioning assembly, the positioning assembly comprises three abutting rods which are arranged on the supporting table in a sliding manner, and the three abutting rods are circumferentially distributed on the supporting table; and the supporting platform is provided with a driving assembly for driving the three abutting rods to slide along the radial direction. Through set up locating component on a supporting bench to the spring that will treat processing prevents that the spring from sliding along the horizontal direction when carrying out the forced compression processing at the horizontal direction, has guaranteed the normal clear of spring forced compression work.

Description

Punch press for forcing spring

Technical Field

The utility model belongs to the technical field of the technique of spring processing equipment and specifically relates to a punch press for spring is forced.

Background

At present, in spring production and processing enterprises, after a spring is processed and formed, the spring needs to be set or subjected to forced pressing in advance in order to prevent the spring from generating plastic deformation failure in the subsequent use process. The forced compression treatment is to compress the compression spring by using strong pressure until the stress of the material layer exceeds the yield point, so that negative residual stress is generated on the surface, and positive residual stress is generated in the core. A specific way of operation is to use a large force to press the spring to a prescribed height and then release it, causing plastic deformation of the spring. A setting process is then performed at this height.

The equipment that carries out the forced compression to the spring is a punch press now, and this kind of punch press includes the brace table, and fixed mounting has a plurality of stands that are parallel to each other on the brace table, the one end and the brace table fixed connection of stand, the other end is fixed and is provided with the roof, and fixed mounting has the pneumatic cylinder on the roof, and the piston rod of pneumatic cylinder is towards the brace table, and the tip fixed mounting of piston rod has the forced compression board. During the work, the staff places the spring that has machine-formed on a supporting bench, then starts the pneumatic cylinder, and pneumatic cylinder drive piston rod drives the direction removal of forcing the board towards a supporting bench to carry out the forcing to the spring, until compressing the spring to the height of regulation, then the pneumatic cylinder drives the piston rod and moves towards the direction of propping up a supporting bench back to, thereby release the spring, so far the process that the forcing of spring was handled is ended.

In actual work, because some springs are in the process of processing, before the process of forcing, the terminal surface has not been ground flat, so the terminal surface of spring is curved, the spring is placing the one end of spring on a supporting platform in the process of forcing, the other end is compressed by the pneumatic cylinder, when the pneumatic cylinder compressed the spring, because the spring was placed the one end of supporting platform and is curved to make the spring skew take place in the horizontal direction, finally influence the work of forcing of spring.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned prior art exists, the utility model discloses an aim at then provides a punch press for spring is forced, through set up locating component on a supporting bench to the spring that will treat processing prevents that the spring from sliding along the horizontal direction when carrying out the forced treatment at the horizontal direction, has guaranteed the normal clear of spring forced work.

The above object of the present invention is achieved by the following technical solutions:

a punching machine for forcibly pressing a spring comprises a supporting table, wherein at least two vertical columns which are parallel to each other are arranged on the supporting table, a hydraulic cylinder is fixedly arranged at one end, away from the supporting table, of each vertical column, a strong pressing plate is fixedly arranged on a piston rod of the hydraulic cylinder, a positioning assembly is arranged on the supporting table and comprises three abutting rods which are arranged on the supporting table in a sliding mode, and the three abutting rods are circumferentially distributed on the supporting table; and the supporting platform is provided with a driving assembly for driving the three abutting rods to slide along the radial direction.

Through adopting above-mentioned technical scheme, the during operation is earlier through drive assembly for three support tight pole orientation direction motions that are close to each other, then place the one end of spring on a supporting bench, and make the tip of three support tight poles all be located the inner circle of spring, start drive assembly after that, under drive assembly's drive, three support tight poles support the inner circle of spring simultaneously, thereby make being fixed on a supporting bench of spring. And then, the hydraulic cylinder is started, and the strong pressure plate is driven by the hydraulic cylinder to move towards the support table, so that the spring is subjected to strong pressure treatment. Through set up locating component on a supporting bench to the spring that will treat processing prevents that the spring from sliding along the horizontal direction when carrying out the forced compression processing at the horizontal direction, has guaranteed the normal clear of spring forced compression work.

The utility model discloses further set up to: a rack is arranged at one end of the support table, which is far away from the strong pressure plate, one end of the upright post, which is far away from the hydraulic cylinder, is fixedly arranged on the rack, and a driving hole is formed in the support table; the driving assembly comprises a driving cylinder and a conical block, the driving cylinder is fixedly mounted on the rack, the bottom surface of the conical block is fixedly connected with a piston rod of the driving cylinder, the conical block is slidably arranged in the driving hole in a penetrating mode, the end portions of the three abutting rods are abutted against the side face of the conical block, and the top point of the conical block penetrates through the driving hole.

Through adopting the above technical scheme, in operation, place the one end of spring on a supporting bench, and make three support tight pole all be located the spring after the inner circle, start and drive actuating cylinder, the piston rod that drives actuating cylinder promotes the direction removal that the frame was kept away from to the circular cone piece, because the one end of supporting tight pole is contradicted on the side of circular cone piece, and along with the drive that drives actuating cylinder, circular cone piece side promotes to support the direction motion that the drive hole was kept away from to the tight pole orientation, thereby make three support tight pole support the inner circle of spring tightly, finally make the horizontal direction of spring fixed, moreover, the steam generator is simple in structure, and convenient for driving.

The utility model discloses further set up to: and the end part of the abutting rod, which is close to the conical block, is provided with a roller.

Through adopting above-mentioned technical scheme, the sliding friction between the pole and the circular cone piece that will support before converts the rolling friction of gyro wheel and circular cone piece into, has reduced the wearing and tearing between the pole and the circular cone piece of supporting on the one hand, and on the other hand has reduced the burden that drives actuating cylinder, the life of the pole, circular cone piece and the drive actuating cylinder that support of extension.

The utility model discloses further set up to: a limiting sleeve is fixedly arranged on the supporting table, and the tightening rod penetrates through the limiting sleeve; the limiting sleeve is provided with a reset piece, and the reset piece is used for driving one end, close to the conical block, of the abutting rod to abut against the side face of the conical block.

Through adopting above-mentioned technical scheme, through fixed stop collar that sets up on a supporting bench to prevent to support tight pole and a supporting bench and break away from, make to support tight pole remain throughout and slide at a supporting bench. Through setting up the piece that resets for establish before supporting tight pole tip at the spring housing, support the direction removal of tight pole orientation circular cone piece under the drive of piece that resets, thereby make things convenient for the spring to place.

The utility model discloses further set up to: the reset piece comprises a reset sheet fixedly arranged on the abutting rod and a reset spring, and the reset sheet is positioned between the limiting sleeve and the driving hole; one end of the reset spring is fixedly arranged on the reset sheet, the other end of the reset spring is fixedly arranged on the limiting sleeve, and the reset spring is always in a compressed state.

Through adopting above-mentioned technical scheme, before placing the spring on the brace table, drive actuating cylinder and drive the direction motion of circular cone piece towards the strong clamp plate of back to, reset spring drive piece moves towards the direction of drive hole that resets to make and support the direction motion of tight pole towards the drive hole, thereby make things convenient for the spring to establish in the inner circle of spring, simple structure will support the tight pole cover.

The utility model discloses further set up to: and a rubber block is fixedly arranged at one end of the abutting rod, which is far away from the roller.

Through adopting above-mentioned technical scheme, set up the block rubber through the tip at supporting tight pole, prevent to support the inner circle of tight pole scotch spring on the one hand, on the other hand increases the frictional force of supporting pole and spring inner circle to make the spring can be more stable fixed on a supporting bench.

The utility model discloses further set up to: the supporting table is provided with a pushing block in a sliding mode, a channel used for clamping a spring is formed between the pushing block and one end, provided with a rubber block, of the abutting rod, and a positioning piece used for fixing the position of the pushing block is arranged on the supporting table.

Through adopting above-mentioned technical scheme, the spring is placed after propping up supporting bench to make to support the pole and all be located the inner circle of spring, then the staff opens the setting element, and the drive promotes the piece and slides after that, makes to promote the outer lane of piece and spring to support tightly, then closes the setting element, will promote the piece and fix on supporting bench, makes the more stable placing of spring on supporting bench.

The utility model discloses further set up to: the supporting table is fixedly provided with a positioning block, the positioning element is a positioning bolt, the positioning bolt penetrates through the positioning block and is fixedly connected with the pushing block, and the positioning bolt is in threaded connection with the positioning block.

Through adopting above-mentioned technical scheme, before placing the spring, twist and move positioning bolt, drive and promote the piece and remove towards the direction of keeping away from to the tight pole, then place the spring on a supporting bench, make after that to support the inner circle of tight pole with the spring and support tightly, then twist and move positioning bolt, drive and promote the piece and slide towards the direction of supporting the tight pole for promote the piece and support tightly with the outer lane of spring, finally make the spring more steady fixed on a supporting bench.

To sum up, the utility model discloses a beneficial technological effect does:

1. the positioning assembly is arranged on the support table, so that the spring to be processed is in the horizontal direction, the spring is prevented from sliding in the horizontal direction when being subjected to forced compression treatment, and the normal operation of forced compression work of the spring is ensured;

2. the end part of the abutting rod is provided with the roller, so that sliding friction between the abutting rod and the conical block is converted into rolling friction between the roller and the conical block, on one hand, abrasion between the abutting rod and the conical block is reduced, on the other hand, the burden of the driving cylinder is reduced, and the service lives of the abutting rod, the conical block and the driving cylinder are prolonged;

3. set up the rubber block through the tip at supporting the tight pole, prevent to support the inner circle of tight pole scotch spring on the one hand, on the other hand increases the frictional force of supporting pole and spring inner circle to make the spring can be more stable fixed on a supporting bench.

Drawings

Fig. 1 is a schematic structural view of a press for forcing a spring according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1, illustrating the structure of the driving assembly;

fig. 3 is an enlarged schematic view of a portion B in fig. 2, for illustrating a structure of the push block.

Reference numerals: 1. a frame; 2. a column; 3. an installation table; 4. a hydraulic cylinder; 5. pressing the plate strongly; 6. a support table; 7. a positioning assembly; 8. a drive assembly; 81. a driving cylinder; 82. a conical block; 9. a reset member; 91. a reset sheet; 92. a return spring; 10. a drive aperture; 11. a roller; 12. a rubber block; 13. a limiting sleeve; 14. a pushing block; 15. a positioning member; 16. and (5) positioning the blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a punch press for spring is forced, including frame 1, frame 1 goes up vertical fixed four stands 2 that are provided with parallel of each other, and four stands 2 distribute respectively on four angles of frame 1 upper surface. The one end fixed mounting of stand 2 is in frame 1, and the other end is fixed and is provided with mount table 3, and 3 internal fixation of mount table inlays and is equipped with pneumatic cylinder 4 to the piston rod of pneumatic cylinder 4 is towards frame 1, and the rod end fixed mounting of piston rod has strong clamp plate 5.

Referring to fig. 1 and 2, a support table 6 is disposed between the pressure plate 5 and the frame 1, and the support table 6 is fixedly mounted on the column 2 and parallel to the pressure plate 5. The supporting table 6 is a cuboid, a driving hole 10 is formed in the intersection point of two diagonal lines on the upper surface of the supporting table 6 along the depth direction of the supporting table 6, and the driving hole 10 is a through hole. The supporting table 6 is provided with three positioning components 7, and the positioning components 7 comprise three abutting rods. The three support rods are radially distributed and are distributed on the surface of the support platform 6 facing the strong pressure plate 5 at equal intervals. The end part of the abutting rod close to the driving hole 10 is rotatably connected with a roller 11 through a pin shaft, and the other end of the abutting rod is fixedly provided with a rubber block 12.

Referring to fig. 1 and 2, a driving assembly 8 is disposed on the frame 1, and the driving assembly 8 includes a driving cylinder 81 and a conical block 82. One end of the driving cylinder 81 far away from the piston rod is fixedly installed on the frame 1, the piston rod of the driving cylinder 81 faces the driving hole 10, and the axis of the piston rod coincides with the axis of the driving hole 10. The center of the bottom surface of the conical block 82 is fixedly connected with the piston rod of the driving cylinder 81, and the vertex of the conical block 82 faces the driving hole 10. The driving cylinder 81 drives the piston rod to move towards the driving hole 10, so that the vertex part of the conical block 82 is driven to move towards the driving hole 10, and a part of the conical block 82 passes through the driving hole 10; the side surface of the conical block 82 is in contact with the roller 11 of the tightening rod, and the tightening rod is pushed to move in the direction back to the driving hole 10 as the driving cylinder 81 continuously pushes the conical block 82 to move in the direction back to the frame 1.

Referring to fig. 2, the supporting table 6 is integrally provided with limiting sleeves 13, the number of the limiting sleeves 13 is the same as that of the tightening rods, and the tightening rods penetrate through the limiting sleeves 13. The limiting sleeve 13 is provided with a reset piece 9, and the reset piece 9 comprises a reset sheet 91 and a reset spring 92. The reset plate 91 is welded to the abutment bar and is located on the side of the stop collar 13 facing the drive hole 10. The return spring 92 is provided between the return plate 91 and the stopper 13. One end of the return spring 92 is welded to the return plate 91, and the other end is welded to the end face of the stop collar 13, and the return spring 92 is always in a compressed state.

Referring to fig. 3, a pushing block 14 is slidably disposed on the supporting platform 6, and a channel for placing the side wall of the spring is formed between the pushing block 14 and the end of the resisting rod containing the rubber block 12. The support table 6 is further provided with a positioning piece 15, and the positioning piece 15 is a positioning bolt. The support table 6 is welded with a positioning block 16, the positioning block 16 is provided with a through hole, and the through hole is a threaded hole. The positioning bolt passes through the through hole on the positioning block 16 and is fixedly connected with the pushing block 14, and the positioning bolt is in threaded connection with the positioning block 16.

The implementation principle is as follows:

during operation, the staff starts pneumatic cylinder 4 and drives strong clamp plate 5 and move towards the direction of propping a supporting bench 6 back to, then starts driving actuating cylinder 81, drives circular cone block 82 and moves towards the direction of propping strong clamp plate 5 back to, and the pole that supports at this moment moves towards the direction of drive hole 10 under reset spring's 92 drive, twists positioning bolt after that for promote the direction motion of piece 14 towards the pole that supports back to. The staff then places one end of the spring on the support table 6 and makes all three abutment bars in the inner ring of the spring.

Then, the worker starts the driving cylinder 81, the driving cylinder 81 drives the conical block 82 to move towards the direction of the strong pressure plate 5, so that the roller 11 on the tightening rod is tightly pressed against the side face of the conical block 82, and along with the movement of the conical block 82, one end of the tightening rod, which contains the rubber block 12, is tightly pressed against the inner ring side wall of the spring.

Then, the positioning bolt is screwed, so that the pushing block 14 is tightly abutted to the outer side wall of the spring, the spring is fixed on the support table 6 in the horizontal direction, the spring is finally prevented from sliding in the horizontal direction when being subjected to forced compression treatment, and the normal operation of forced compression work of the spring is ensured. Then, the hydraulic cylinder 4 is started to forcibly press the spring.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A punch press for spring is forced, includes brace table (6), its characterized in that: the supporting table (6) is provided with at least two parallel upright posts (2), one end of each upright post (2) far away from the supporting table (6) is fixedly provided with a hydraulic cylinder (4), a piston rod of each hydraulic cylinder (4) is fixedly provided with a strong pressure plate (5), the supporting table (6) is provided with a positioning assembly (7), each positioning assembly (7) comprises three abutting rods which are arranged on the supporting table (6) in a sliding manner, and the three abutting rods are circumferentially distributed on the supporting table (6); and the supporting platform (6) is provided with a driving assembly (8) for driving the three abutting rods to slide along the radial direction.

2. A press for spring stressing according to claim 1, wherein: a rack (1) is arranged at one end of the support table (6) far away from the strong pressure plate (5), one end of the upright post (2) far away from the hydraulic cylinder (4) is fixedly arranged on the rack (1), and a driving hole (10) is formed in the support table (6); the driving assembly (8) comprises a driving cylinder (81) and a conical block (82), the driving cylinder (81) is fixedly mounted on the rack (1), the bottom surface of the conical block (82) is fixedly connected with a piston rod of the driving cylinder (81), the conical block (82) is slidably arranged in the driving hole (10), the end parts of the three abutting rods are abutted against the side surface of the conical block (82), and the vertex of the conical block (82) penetrates through the driving hole (10).

3. A press for spring stressing according to claim 2, wherein: and the end part of the abutting rod close to the conical block (82) is provided with a roller (11).

4. A press for spring stressing according to claim 2, wherein: a limiting sleeve (13) is fixedly arranged on the supporting table (6), and the abutting rod is arranged in the limiting sleeve (13) in a penetrating mode; the limiting sleeve (13) is provided with a reset piece (9), and the reset piece (9) is used for driving one end, close to the conical block (82), of the abutting rod to abut against the side face of the conical block (82).

5. A press for spring stressing according to claim 4, wherein: the reset piece (9) comprises a reset sheet (91) fixedly arranged on the abutting rod and a reset spring (92), and the reset sheet (91) is positioned between the limiting sleeve (13) and the driving hole (10); one end of the reset spring (92) is fixedly arranged on the reset sheet (91), the other end of the reset spring is fixedly arranged on the limiting sleeve (13), and the reset spring (92) is always in a compressed state.

6. A press for spring stressing according to claim 3, wherein: and a rubber block (12) is fixedly arranged at one end of the abutting rod, which is far away from the roller (11).

7. A press for spring stressing according to claim 6, wherein: supporting bench (6) slide on be provided with and promote piece (14), promote piece (14) with it is provided with the passageway that forms between the one end of rubber block (12) to support the pole and be used for the joint spring, be provided with on supporting bench (6) and be used for fixing promote setting element (15) of piece (14) position.

8. A press for spring stressing according to claim 7, wherein: a positioning block (16) is fixedly arranged on the supporting table (6), the positioning piece (15) is a positioning bolt, the positioning bolt penetrates through the positioning block (16) and is fixedly connected with the pushing block (14), and the positioning bolt is in threaded connection with the positioning block (16).