CN213968678U

CN213968678U - Cold extrusion deformation closing-in device for thin-wall metal piece

Info

Publication number: CN213968678U
Application number: CN202023059200.4U
Authority: CN
Inventors: 周鹏
Original assignee: Sichuan Hangqing Machinery Manufacturing Co ltd
Current assignee: Sichuan Hangqing Machinery Manufacturing Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-17
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a cold extrusion deformation binding off device of thin wall metalwork belongs to metalwork binding off technical field. A thin-wall metal piece cold extrusion deformation closing-in device comprises: the device comprises a press machine, a positioning seat and at least two punches; the top of the positioning seat is provided with a positioning hole; the top of drift can be dismantled with the press and be connected, and the bottom of drift is equipped with spacing hole, and the bottom in spacing hole is equipped with the conical surface, the tapering Z diverse of the conical surface of all drifts. The utility model discloses a drift that two at least tapering are different extrudees the part in proper order and treats the one end of binding off, forms the mode that extrudees the binding off many times, and part binding off department is difficult to the emergence fracture, simultaneously, adopts drift and positioning seat complex mode to close up, has avoided the conventional extrusion mode soon, and the instrument of binding off makes simplyr, and the cost is lower.

Description

Cold extrusion deformation closing-in device for thin-wall metal piece

Technical Field

The utility model relates to a metalwork binding off technical field, concretely relates to thin wall metalwork cold extrusion deformation binding off device.

Background

In the mechanical manufacturing process, when the cold extrusion deformation is adopted to realize the closing-up solidification of the structure, a rotary extrusion process is generally used, and due to the characteristics of the rotary extrusion process, the rotary extrusion method cannot be adopted in the state that the part structure is small (the outer diameter is less than phi 10 mm) and the wall thickness is smaller than 1mm, and the reason is that:

1. the extruded part is small, and the extrusion tool is difficult to manufacture;

2. the extruded part has thin wall, and the extruded surface is broken.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cold extrusion of thin wall metalwork becomes binding off device to solve the problem that current structure is less than normal, the thinner part of wall thickness is not convenient for close up.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a thin-wall metal piece cold extrusion deformation closing-in device comprises: the device comprises a press machine, a positioning seat and at least two punches; the top of the positioning seat is provided with a positioning hole; the top of drift can be dismantled with the press and be connected, and the bottom of drift is equipped with spacing hole, and the bottom in spacing hole is equipped with the conical surface, the tapering Z diverse of the conical surface of all drifts.

The utility model discloses being on the contrary little to the structure, the thinner part of wall thickness is when closing up with those, place the locating hole with the part in, the part is treated the one end of closing up and is stretched into spacing hole, along with the action of press, the one end of closing up is treated to conical surface extrusion part, make the part treat the one end of closing up and warp inwards, the one end of closing up is treated to the drift of extruding the part in proper order through two at least tapering differences, form the mode of extrusion binding up many times, part department of closing up is difficult to the emergence fracture, and simultaneously, adopt drift and positioning seat complex mode to close up, avoided the conventional extrusion mode soon, the closing up instrument is made simplyr, and the cost is lower.

Furthermore, the top of the positioning seat is provided with a guide hole, and the positioning hole is formed at the bottom of the guide hole; the bottom of drift is equipped with the piston, piston and guiding hole sliding fit, and spacing hole shaping is in piston bottom side.

The utility model discloses a piston slides in the guiding hole, has the guidance quality to the direction of motion of drift, avoids the biasing of drift and causes irregular deformation to the spare part, improves the degree of accuracy of drift motion and improves binding off efficiency.

Further, the length of the piston is smaller than the depth of the guide hole.

The utility model discloses a length of piston is less than the degree of depth of guiding hole, and the positioning seat has limiting displacement to the drift in stamping process, and the removal low point of all drifts is unanimous promptly, avoids excessive punching press.

Further, the taper Z is greater than 0 ° and equal to or less than 120 °.

Further, the punch includes a first punch, a second punch, and a third punch; the tapers of the first punch, the second punch and the third punch are respectively Z1, Z2 and Z3, and Z1, Z2 and Z3 are increased in sequence.

The utility model discloses a drift that three kinds of tapering are different is closed up the operation, and first drift, second drift and third drift carry out the punching press in proper order, and the part closes up gradually, can avoid the fracture of plane of extrusion and avoid adopting the conventional extrusion technology soon.

Further, the taper Z1 is greater than 30 ° and less than 60 °; the taper Z1 is greater than 70 degrees and less than 90 degrees; the taper Z3 is greater than 100 ° and less than 120 °.

Further, the taper Z1 is 46 °, the taper Z2 is 80 °, and the taper Z3 is 110 °.

Further, the press machine is a pneumatic press machine.

The utility model discloses following beneficial effect has:

the utility model discloses a drift that two at least tapering are different extrudees the part in proper order and treats the one end of binding off, forms the mode that extrudees the binding off many times, and part binding off department is difficult to the emergence fracture, simultaneously, adopts drift and positioning seat complex mode to close up, has avoided the conventional extrusion mode soon, and the instrument of binding off makes simplyr, and the cost is lower.

Drawings

Fig. 1 is a schematic structural view of a thin-wall metal part cold extrusion deformation closing device of the present invention;

fig. 2 is a schematic structural view of the positioning seat of the present invention;

fig. 3 is a schematic structural diagram of a first punch according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic structural view of a second punch according to the present invention;

FIG. 6 is an enlarged view of the portion B of FIG. 5;

fig. 7 is a schematic structural view of a third punch according to the present invention;

fig. 8 is an enlarged view of a portion C of fig. 7.

In the figure: 10-a press machine; 20-positioning seats; 21-positioning holes; 22-a pilot hole; 30-a punch; 31-a limiting hole; 32-conical surface; 33-a piston; 301-a first punch; 302-a second punch; 303-third punch.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1, a thin-wall metal part cold extrusion deformation closing device includes: a press 10, a positioning socket 20 and at least two punches 30. The positioning seat 20 is installed on the working table of the press machine 10, the top ends of all the punches 30 can be installed on the actuating part of the press machine 10 through bolts, and after the installation is completed, the extending direction of the punches 30 is consistent with the actuating direction of the press machine 10. In this embodiment, the press machine 10 is a pneumatic press machine, has the characteristic of stable movement, and can improve the part closing quality; all the punches 30 can also be mounted on the actuating members of the press 10 by means of removable connections, such as screws.

Referring to fig. 2, the top of the positioning seat 20 is provided with a guiding hole 22, the guiding hole 22 faces the actuating part of the press 10, the axis of the guiding hole 22 is the same as the actuating direction of the press 10, and the bottom of the guiding hole 22 is provided with a coaxial positioning hole 21.

Referring to fig. 3 to 8, a piston 33 is disposed at the bottom end of the punch 30, the piston 33 is slidably engaged with the sidewall of the guide hole 22, a limiting hole 31 is disposed at the bottom side of the piston 33, a tapered surface 32 is disposed at the bottom of the limiting hole 31, and tapers Z of the tapered surfaces 32 of all the punches 30 are different and are greater than 0 ° and less than or equal to 120 °. Through the order of the taper Z from small to large, the punch 30 punches the part, so that the part can be closed up in a multi-punching mode. In this embodiment, the length of the piston 33 is less than the depth of the pilot hole 22, avoiding over-punching.

The number of punches 30 is 3, and the first punch 301, the second punch 302, and the third punch 303 are provided, and the tapers of the first punch 301, the second punch 302, and the third punch 303 are Z1, Z2, and Z3, respectively. The taper Z1 is greater than 30 degrees and less than 60 degrees; the taper Z1 is greater than 70 degrees and less than 90 degrees; the taper Z3 is greater than 100 ° and less than 120 °. In this embodiment, the taper Z1 is 46 °, the taper Z2 is 80 °, and the taper Z3 is 110 °. In other embodiments of the present invention, the number of the punches 30 may also be 2, 4, 5, etc., and it is sufficient to ensure that the taper Z of each punch 30 is different.

The utility model discloses a thin wall metalwork cold extrusion deformation binding off device's binding off process: (1) placing a part in the positioning hole 21, and enabling one end of the part to be closed to face upwards; (2) installing a first punch 301 on an actuating part of the press machine 10, and enabling the axis of the first punch 301 to be overlapped with the axis of the guide hole 22 so as to ensure that the axis of the limiting hole 31 is overlapped with the axis of the positioning hole 21; (3) starting the press machine 10, moving the first punch 301 downwards, enabling the piston 33 to enter the guide hole 22, enabling the end, to be closed, of the part to enter the limiting hole 31, closing the part under the extrusion action of the conical surface 32, and enabling the taper after closing to be 46 degrees; (4) disassembling the first punch 301 and installing a second punch 302 on the actuating part of the press 10, and repeating (2) and (3), wherein the taper of the part after closing is 80 degrees; (5) and (3) detaching the second punch 302 and installing a third punch 303 on the actuating part of the press 10, and repeating (2) and (3), wherein the taper of the part after the part is closed is 110 degrees, and the closing of the part is finished.

Because the diameters of the limiting holes 31 of all the punches 30 are consistent and the taper degrees of the limiting holes are the same, the extrusion surfaces of the punches 30 on parts are different, and the fracture of the extrusion surfaces caused by extruding a single extrusion surface for multiple times is avoided.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a cold extrusion of thin wall metalwork becomes binding off device which characterized in that includes: the device comprises a press machine (10), a positioning seat (20) and at least two punches (30); the top of the positioning seat (20) is provided with a positioning hole (21); the top of drift (30) with press (10) can be dismantled and be connected, the bottom of drift (30) is equipped with spacing hole (31), the bottom of spacing hole (31) is equipped with conical surface (32), and the tapering Z of the conical surface (32) of all drifts (30) is diverse.

2. The cold extrusion, deformation and necking device for the thin-wall metal piece according to claim 1, wherein a guide hole (22) is formed at the top of the positioning seat (20), and the positioning hole (21) is formed at the bottom of the guide hole (22); the bottom of drift (30) is equipped with piston (33), piston (33) with guiding hole (22) sliding fit, spacing hole (31) shaping in piston (33) bottom surface.

3. A cold extrusion deformation necking device for thin-walled metal pieces according to claim 2, wherein the length of the piston (33) is smaller than the depth of the guide hole (22).

4. A cold extrusion, deformation and necking apparatus for thin-walled metal articles as claimed in claim 1, wherein the taper Z is greater than 0 ° and equal to or less than 120 °.

5. A cold extrusion, deformation and necking device for thin-walled metal pieces according to claim 4, wherein the punch (30) comprises a first punch (301), a second punch (302) and a third punch (303); the conicity of the first punch (301), the conicity of the second punch (302) and the conicity of the third punch (303) are respectively Z1, Z2 and Z3, and Z1, Z2 and Z3 are increased in sequence.

6. The cold extrusion deformation necking device for thin-walled metal pieces of claim 5, wherein the taper Z1 is greater than 30 ° and less than 60 °; the taper Z1 is greater than 70 degrees and less than 90 degrees; the taper Z3 is greater than 100 ° and less than 120 °.

7. A cold extrusion deformation necking device for thin-walled metal pieces according to claim 6, wherein the taper Z1 is 46 °, the taper Z2 is 80 °, and the taper Z3 is 110 °.

8. A cold extrusion, deformation and necking device for thin-walled metal pieces according to any of claims 1 to 7, wherein the press (10) is a pneumatic press.