KR100980035B1

KR100980035B1 - A mold for a ball joint press-in plug manufacture

Info

Publication number: KR100980035B1
Application number: KR1020100038576A
Authority: KR
Inventors: 송춘만
Original assignee: 송춘만
Priority date: 2010-04-26
Filing date: 2010-04-26
Publication date: 2010-09-06

Abstract

PURPOSE: A mold for manufacturing a ball-joint press-fit plug is provided to minimize the failure rate by improving the concentricity of a press-fit plug and to form a press-fit plug at a time without moving a material. CONSTITUTION: A mold for manufacturing a ball-joint press-fit plug comprises an upper assembly(10) and lower assembly(30). The upper assembly includes an upper clamping plate(11), a blanking plate(12), a punch plate(13), a punch fixing plate(14), an upper mold(16), a compression spring(17), and a blanking punch(18). The blanking plate, the punch plate, and the punch fixing plate are successively assembled in the upper clamping plate. The blanking punch is installed to ascend and descend in the upper mold. A piercing punch(23) by which the top of the punch plate is fixed is formed inside a pressure pad(19). A fixing pad(36) is secured inside a variable pad so that blanking, bending and piercing can be performed at a time without moving a material.

Description

Mold for a ball joint Press-in plug manufacture

The present invention relates to a mold for manufacturing a ball joint press-fit plug, and more specifically, to enable a press-fit plug molding while one mold is operated in two stages, thereby reducing costs, improving precision and concentricity of the product, and improving productivity. It is to provide a mold for manufacturing a joint press-fit plug.

Ball joints are used for various machinery and automobile accessories, and the general configuration of ball joints is to force the plugs into the housings while the balls integrally formed at the shaft ends are coupled to the housings. I'm not.

In constructing the ball joint as described above, the press-fitting plug is generally manufactured by a method of processing a round bar or a method of processing a primary cold forged molding. In addition, when the thickness of the material is thin it may be molded using a press die.

In general, the production of press-fitted plugs with a small thickness of a raw material is made by press die, which is a piercing cut out of the boundary of the molded part from the raw material, a piercing to form a hole in the center of the molded part, and presses the molded part with the product. The drawing is configured to be made sequentially.

Such a mold is a configuration in which the processes are sequentially performed as the material is moved, which is very advantageous for productivity, etc. However, when a thin iron plate is moved and molded in the same manner as described above, the mold takes a lot of material, and concentricity of the product is reduced. Product defect rate was high.

Accordingly, the present inventors have researched and developed the present invention to solve the above-described problems, and in the present invention, it is possible to reduce the cost, improve the precision and concentricity of the product, and improve productivity by enabling the press-molding plug molding while operating one mold in two stages. The present invention has been completed with a technical problem in providing a mold for manufacturing a ball joint press-fitted plug.

In the present invention to configure the ball joint indentation plug manufacturing mold as a means for solving the problem, in the ball joint indentation plug manufacturing mold composed of the upper mold assembly and the lower mold assembly;

The upper mold assembly is assembled to the upper fixing plate in order to assemble the blanking plate and the punch plate and the punch fixing plate in a downward direction, and the upper mold coupled to the punch plate to the punch plate to the lower side of the punch fixing plate to be elastically supported by the compression spring,

The upper die is provided with a pipe-shaped blanking punch fixed by a punch plate and a punching fixing plate, and a pipe-shaped pressure pad having a locking jaw formed at its upper end is coupled to the inside of the blanking punch, and the locking jaw of the pressure pad has an upper fixing plate. It is installed to be in contact with the pressing member is provided with the pressing force of the pressure spring is built in the combined shank, the inner side of the pressure pad is installed a piercing punch fixed to the punch plate,

The lower mold assembly has a lower mold fixed to the fixed plate, but the lower mold is formed with a blanking hole so as to correspond to the blanking punch, and a variable pad is installed therein to provide elastic force of the spring-elastic member installed below the fixed plate. And the inside of the variable pad is fixed to the pad to correspond to the pressing pad of the upper mold assembly and fixedly installed to be supported on the top plate so that blanking and bending and piercing can be made at once without moving the material.

When using the ball joint indentation plug manufacturing mold provided by the present invention by forming the indentation plug at once without moving the material, it is possible to minimize the loss of material.

Alternatively, the present invention can reduce the installation cost because the size of the mold is compact, can improve the productability by excellent concentricity of the press-fit plug, it can achieve the effect more than expected, such as to minimize the defective rate.

Figure 1 is an exploded perspective view of a ball joint indentation plug manufacturing mold provided by the present invention
Figure 2 is a cross-sectional view of the ball joint indentation plug manufacturing mold provided by the present invention
Figure 3 is an enlarged view for showing the vertical state of the punch in the ball joint indentation plug manufacturing mold provided by the present invention before the blanking punch descends
Figure 4 is an enlarged view for showing the vertical state of the punch in the ball joint indentation plug manufacturing mold provided by the present invention, the blanking punch is lowered to blank the material
Figure 5 is an enlarged view for showing the vertical state of the punch in the ball joint indentation plug manufacturing mold provided by the present invention, the blanking punch is lowered again in the state blanking the material is lowered and bent and pierced by a piercing punch at the same time
6 is a process diagram of a ball joint press plug manufactured according to the present invention.

Hereinafter, a ball joint press-fitting plug manufacturing mold provided by the present invention will be described based on the accompanying drawings.

Ball joint indentation plug manufacturing mold (1) provided by the present invention is configured as shown in the mold so that blanking, bending and piercing can be done at once without moving the material, cost reduction, product precision and concentricity, productivity Improvements have been made.

The press-fit plug (2) manufactured in the ball joint press-fit plug manufacturing mold (1) of the present invention is composed of a donut shape formed by bending the engaging jaw (6) at the edge where the hole (5) is punched in the center as shown. In the present invention, the ball joint indentation plug manufacturing mold (1) consisting of the upper mold assembly 10 and the lower mold assembly 30 is newly constructed.

That is, in the upper mold assembly 10 according to the present invention, the blanking plate 12 is fixed to the upper fixing plate 11, and the punch plate 13 and the punch fixing plate 14 are disposed below the blanking plate 12. The bolt 15 is assembled, and the upper mold 16 coupled with the bolt 15 so as to be lifted and lowered to the punch plate 13 under the punch fixing plate 14 is installed to be elastically supported by the compression spring 17.

The upper die 16 is provided with a pipe-shaped blanking punch 18 for blanking and bending the molding unit 5 from the material, the blanking punch 18 is the upper end between the punch plate 13 and the punch fixing plate 14 It is to be raised and lowered together with the upper fixing plate 11 in the fixed state.

The blanking punch 18 is installed to protrude slightly outside the upper die 16 when the pressing force is applied to the outside of the upper die 16, and descends into two stages of blanking and bending.

The pipe-shaped blanking punch 18 is coupled with a pipe-shaped pressure pad 19 having a locking jaw 19a formed at an upper end thereof, and an upper fixing plate 11 is attached to the locking jaw 19a of the pressure pad 19. It is installed to contact the pressing member 22 is provided with the pressing force of the pressing spring 21 is built in the shank 20 coupled to the).

The pressing member 22 is installed in the blanking plate 12 to contact the engaging jaw 19a located in the blanking punch 18 in the state of passing through the punch plate 13 in the pin 22a configuration. Is installed.

In addition, a piercing punch 23 having an upper end fixed to the punch plate 13 is installed in the pressure pad 19.

And the lower mold assembly 30 in the present invention is fixed to the lower mold 32 to the fixed plate 31, the lower mold 32 to form a blanking hole (32a) into which the blanking punch 18 is inserted, The variable pad 33 is installed in the inside thereof, and the lower portion of the variable pad 33 is supported by the support pin 35 so that the elastic force of the spring elastic member 34 installed below the fixed plate 31 is provided.

In addition, the fixing pad 36 is fixedly installed in a state supported by the fixing plate 31 to correspond to the pressure pad 19 of the upper mold assembly 10 inside the variable pad 33.

When manufacturing the press-fit plug (2) with the ball joint press-fit plug manufacturing mold (1) of the present invention configured as described above in the state in which the material (3) is put into the upper mold assembly 10 and lower mold assembly 30 The upper mold assembly 10 may be pressed and pressed.

That is, when the upper mold assembly 10 is pressed in the state in which the raw material 3 is injected, the upper mold 16 is brought into contact with the lower mold 32. According to the present invention, the upper mold assembly 10 is slightly exposed to the outside of the upper mold 16. The blanking punch 18 is pressed to blank the forming part 4 while pressing the material 2. At this time, the variable pad 33 of the lower mold assembly 30 is also lowered.

As described above, in the state where the molding part 4 is blanked, the blanking punch 18 is cut by the pressing pad 19 positioned in the blanking punch 18 and the fixing pad 36 of the lower mold assembly 30. Molded part 4 is fixed.

As described above, when the upper part assembly 10 is lowered again while the molding part 4 is fixed by the pressure pad 19 and the fixing pad 36, the pressure pad 19 is embedded in the shank 20. Since it is configured to retreat while pressurizing the pressure spring 21 which is present, the molding part 4 is clamped to maintain a stopped state, and the upper fixing plate 11 and the punch plate 13 are made of the blanking punch 18 and the piercing punch ( As shown in FIG. 5, the coupling jaw 6 is bent at the edge of the molding part 4 and the hole 5 is drilled in the center thereof while descending together with 23).

As such, the upper mold assembly 10 is raised while the press-fit plug 1 is molded, and the upper mold 16 and the pressure pad 19 of the upper mold assembly 10 are respectively a compression spring 17 and a pressure spring 21. Restored to the original state by the), the variable pad 33 of the lower mold assembly 30 is discharged by the spring elastic member 34 to discharge the completed ball joint indentation plug (2), wherein the lower mold 32 one side Air is injected through an air nozzle (not shown) installed in the press plug 2 to be discharged to the outside of the mold is to repeat the above operation.

1: (Ball Joint Press-fit Plug) Manufacturing Mold 2: Press-fit Plug
3: Material 4: Molding part
5: hole 6: coupling jaw
10: Pictograph Assembly 11: Top Fixing Plate
12: Blanking plate 13: Punch plate
14: Punching chief 15: Bolt
16: Pictograph 17: Compression spring
18: Blanking punch 19: Pressure pad
19a: Jam Jaw 20: Shank
21: Pressure spring 22: Pressure member
22a: pin 23: piercing punch
30: lower mold assembly 31: fixed plate
32: Lower type 32a: Blanking hole
33: variable pad 34: spring elastic member
35: support pin 36: fixing pad

Claims

In constructing the ball joint press-fit plug manufacturing mold (1) consisting of the upper mold assembly (10) and the lower mold assembly (30),
The upper mold assembly 10 sequentially assembles the blanking plate 12, the punch plate 13, and the punch fixing plate 14 downward to the upper fixing plate 11, and punch plate 13 below the punch fixing plate 14. The upper die (16) coupled to the bolt so as to be elevated in and installed to be elastically supported by the compression spring (17),
The upper die 16 is provided with a pipe-shaped blanking punch 18 fixed by a punch plate 13 and a punch fixing plate 14 to be elevated.
The blanking punch 18 is coupled to the pressure pad 19 of the pipe shape having a locking jaw (19a) formed on the upper end, the shank coupled to the upper fixing plate 11 to the locking jaw (19a) of the pressure pad (19). Installed so as to contact the pressing member 22 is provided with the pressing force of the pressure spring 21 is built in the (20),
Inside the pressure pad 19 is installed a piercing punch 23, the upper end of which is fixed to the punch plate 13,
The lower mold assembly 30 is fixed to the lower mold 32 to the fixed plate 31,
The lower mold 32 has a blanking hole 32a formed to correspond to the blanking punch 18, and a spring elastic member 34 installed below the fixing plate 11 by installing a variable pad 33 therein. ) Provides elastic force,
The inside of the variable pad 33 is fixed to the fixing pad 36 to correspond to the pressure pad 19 of the upper mold assembly 10 and fixedly installed so as to be supported by the stationary plate 31 so that the blanking, bending and piercing of the material Ball joint press plug manufacturing mold, characterized in that it can be made at once without moving.