High-stability elastic lifting pin mounting structure

Abstract

The utility model relates to the field of stamping equipment, and discloses a high-stability elastic lifting pin mounting structure which is characterized in that an upper mounting groove and a lower mounting groove are formed in the surfaces of the upper side and the lower side of a stamping lower die holder respectively, an embedding groove is formed in the bottom end in the upper mounting groove, and an elastic lifting pin is placed in the embedding groove; a connecting stud is integrally formed at the bottom end of the mounting column, extends into the lower mounting groove and is in threaded connection with a lower nut, an external thread is arranged above the surface of the outer ring of the mounting column, and the external thread is partially arranged in the upper mounting groove and is in threaded connection with an upper nut; the upper mounting groove and the lower mounting groove are formed in the upper side and the lower side of the stamping lower die base correspondingly, the elastic lifting pin is arranged in the embedding groove, the upper end and the lower end of the elastic lifting pin are arranged in the upper mounting groove and the lower mounting groove correspondingly, and the upper nut and the lower nut are connected, so that the mounted elastic lifting pin has bidirectional fastening force and can be effectively prevented from loosening; and the difficulty of dismounting and mounting caused by abrasion of the bottom screw hole is also avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch equipment field especially relates to a high stability ejection pin mounting structure. BACKGROUND

[0002] The ejection pin is designed for the stamping production process, and the main function is to lift the material from the die face, which is beneficial to feeding. This pin-shaped part plays an important role in stamping production, ensuring that the stamping part can be smoothly separated from the die, thereby completing the stamping process.

[0003] At present, when the ejection pin is installed, an installation hole is usually formed on the die face, and a threaded hole is formed at the bottom end of the installation hole. The ejection pin is embedded into the installation hole, and a bolt is connected to the bottom end of the ejection pin by passing through the threaded hole from below.

[0004] During the stamping process, the die will vibrate, which may cause the bolt and the ejection pin to come loose at the connection, which may cause the workpiece to be damaged, the waste to be punched, and the threaded hole to be worn, resulting in misalignment. Generally, chemical anti-loosening agents are used to prevent the ejection pin from coming loose, but they are difficult to remove and are not easy to replace. Therefore, we designed a high-stability ejection pin mounting structure. UTILITY MODEL CONTENTS

[0005] To solve the technical problem that the die will vibrate during the stamping process of the stamping part, which may cause the bolt and the ejection pin to come loose at the connection, the utility model provides a high-stability ejection pin mounting structure.

[0006] The utility model adopts the following technical scheme: a high-stability ejection pin mounting structure, comprising a stamping lower die seat, upper and lower sides of the stamping lower die seat are respectively provided with upper and lower installation grooves, an embedded groove is formed at the bottom of the upper installation groove, and an ejection pin is placed in the embedded groove;

[0007] The ejection pin comprises an installation column embedded in the embedded groove, the top end of the installation column is recessed downward to form a lifting groove, a lifting column is slidably arranged in the lifting groove, a lifting spring is arranged between the lifting column and the bottom end of the lifting groove, a connecting stud is integrally formed at the bottom end of the installation column, the connecting stud extends into the lower installation groove and is screw-connected with a lower nut, an outer thread is arranged above the outer circle surface of the installation column, and the outer thread part is arranged in the upper installation groove and screw-connected with an upper nut.

[0008] As a further improvement of the above-mentioned scheme, the outer diameter of the lower nut is smaller than the inner diameter of the lower installation groove, and the outer diameter of the upper nut is larger than the inner diameter of the upper installation groove, so that the tool can be easily inserted and the corresponding lower nut and upper nut can be easily removed.

[0009] As a further improvement of the above scheme, the embedded groove is internally provided with a through interface at the bottom end, the through interface is communicated with the lower mounting groove, the connecting stud is arranged in the lower mounting groove through the through interface, and a gasket is further arranged between the lower mounting groove and the lower nut, the lower end of the ejector pin is directly arranged below the through interface and connected with the lower nut, so that the ejector pin is fixed downward, and the gasket arranged in cooperation can effectively prevent loosening of the connection under dynamic conditions.

[0010] As a further improvement of the above scheme, the outer surface of the mounting column is provided with vertically distributed limiting sliding holes communicated with the lifting groove.

[0011] The bottom end of the jacking column is provided with a lifting disc slidingly arranged in the lifting groove, and the outer circle of the lifting disc is integrally formed with a limiting sliding block slidingly arranged in the limiting sliding groove, so as to guide the up-down movement of the jacking column and prevent the jacking column from deviating from the specified path.

[0012] As a further improvement of the above scheme, the inner wall of the embedded groove is provided with a limiting sliding groove communicated with the upper mounting groove, for guiding the up-down movement of the limiting sliding block in the limiting sliding groove.

[0013] As a further improvement of the above scheme, the limiting sliding block is arranged outside the limiting sliding hole, and the limiting sliding block is slidingly arranged in the limiting sliding groove, the length of the limiting sliding block is designed to be longer, and the limiting sliding block is arranged outside the jacking column through the limiting sliding hole, the limiting sliding block is blocked by the upper nut and cannot be separated from the jacking column, and the jacking column is prevented from rotating circumferentially, so that the jacking column is not easy to fall off.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] 1. The upper mounting groove and the lower mounting groove are arranged on the upper and lower sides of the stamping lower die seat respectively, the ejector pin is arranged in the embedded groove, and the upper and lower ends of the ejector pin are arranged in the upper mounting groove and the lower mounting groove respectively and connected with the upper nut and the lower nut, so that the installed ejector pin has bidirectional fastening force, the ejector pin can be effectively prevented from loosening, and compared with the prior installation mode, the wear of the bottom screw hole is avoided, and the difficulty of disassembly and installation is avoided.

[0016] 2. The limiting sliding groove is arranged on the side surface of the embedded groove, the limiting sliding block is arranged on the ejector pin, and the limiting sliding block is slidingly connected with the limiting sliding groove, so that the ejector pin can be directionally limited and not easy to rotate, and the stability of installation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model provides a kind of high stability's whole structure schematic diagram of ejector pin mounting structure.

[0018] Figure 2 For Figure 1 The structure schematic diagram of middle punch lower die seat;

[0019] Figure 3 For Figure 1 The structure schematic diagram of middle ejector pin and upper nut, lower nut;

[0020] Figure 4 For Figure 3 The structure schematic diagram of middle ejector pin.

[0021] Main symbol explanation:

[0022] 1, punch lower die seat;11, lower installation groove;12, upper installation groove;13, through interface;14, embedded groove;15, limit sliding slot;2, ejector pin;21, mounting column;211, lifting groove;212, limit sliding hole;213, external thread;22, jacking column;221, lifting disc;222, limit sliding block;23, jacking spring;3, connecting stud;4, gasket;5, lower nut;6, upper nut. Specific implementation

[0023] Below, it is further described to the utility model in combination with the drawings and specific implementation, it needs to be explained that, under the premise of not conflicting, the following described each embodiment between or each technical feature between can be arbitrarily combined to form new embodiment.

[0024] Embodiment:

[0025] Please combine Figures 1-4 The utility model discloses a kind of high stability's ejector pin mounting structure, including punch lower die seat 1, punch lower die seat 1 upper and lower two sides surface is respectively provided with upper installation groove 12, lower installation groove 11, upper installation groove 12 inside bottom end is provided with embedded groove 14, embedded groove 14 is placed with ejector pin 2;

[0026] Ejector pin 2 includes mounting column 21 mounted in embedded groove 14, mounting column 21 top end is downwardly recessed and forms lifting groove 211, lifting groove 211 is slidably provided with jacking column 22 in upper and lower, and jacking column 22 and lifting groove 211 bottom end between abutment have jacking spring 23, mounting column 21 bottom end is integrally formed with connecting stud 3, connecting stud 3 is inserted into lower installation groove 11 and is screw-connected with lower nut 5, mounting column 21 outer circle surface top is provided with external thread 213, and external thread 213 part is placed in upper installation groove 12 and is screw-connected with upper nut 6.

[0027] The outer diameter of the lower nut 5 is smaller than the inner diameter of the lower mounting groove 11, and the outer diameter of the upper nut 6 is greater than the inner diameter of the upper mounting groove 12, so that the tool can be inserted and the corresponding lower nut 5 and upper nut 6 can be disassembled.

[0028] The embedded groove 14 is internally provided with a through interface 13 at the bottom end, the through interface 13 is in communication with the lower mounting groove 11, the connecting stud 3 is arranged in the lower mounting groove 11 through the through interface 13, and the lower mounting groove 11 and the lower nut 5 are further provided with a gasket 4, the lower end of the ejector pin 2 passes through the through interface 13 and is directly arranged below and connected with the lower nut 5, so that the ejector pin 2 is pulled and fixed downward, and the gasket 4 arranged in cooperation can effectively prevent loosening of the connection under dynamic conditions.

[0029] The mounting column 21 is externally provided with vertically distributed limiting sliding holes 212 in communication with the lifting groove 211;

[0030] The bottom end of the jacking column 22 is provided with a lifting disc 221, the lifting disc 221 is slidingly arranged in the lifting groove 211, and the outer ring of the lifting disc 221 is integrally formed with a limiting sliding block 222, the limiting sliding block 222 is slidingly arranged in the limiting sliding groove 15, can guide the upward and downward movement of the jacking column 22, and makes the jacking column 22 move along a specified path without position deviation.

[0031] The inner wall of the embedded groove 14 is provided with a limiting sliding groove 15 in communication with the upper mounting groove 12 at the top end, for limiting the upward and downward movement of the limiting sliding block 222 in the limiting sliding groove 15, thereby guiding the limiting sliding block 222.

[0032] The limiting sliding block 222 extends out of the limiting sliding hole 212 and is arranged outside the limiting sliding hole 212, and the limiting sliding block 222 is slidingly arranged in the limiting sliding groove 15, the length of the limiting sliding block 222 is lengthened and designed to be arranged outside the jacking column 22 through the limiting sliding hole 212, the limiting sliding block 222 is blocked by the upper nut 6 above and cannot be separated from the jacking column 22, and can limit the circumferential rotation of the jacking column 22, so that the jacking column 22 is not easy to fall off.

[0033] The implementation principle of the high-stability ejector pin mounting structure in the embodiment is as follows: during installation, the upper nut 6 is first threadedly connected above the mounting column 21, then the ejector pin 2 is arranged in the embedded groove 14, the connecting stud 3 at the bottom end is arranged in the lower mounting groove 11 through the through interface 13, the gasket 4 and the lower nut 5 are connected, and then the upper nut 6 is tightened, so that the installed ejector pin 2 has bidirectional fastening force and can effectively prevent the ejector pin 2 from loosening.

[0034] During installation, the limiting sliding block 222 is arranged in the limiting sliding groove 15, so that the ejector pin 2 can be directionally limited and is not easy to rotate.

[0035] By setting the upper mounting groove 12 and the lower mounting groove 11 on the upper and lower sides of the lower die seat 1 respectively, the ejector pin 2 is placed in the embedding groove 14, and the upper and lower ends thereof are placed in the upper mounting groove 12 and the lower mounting groove 11 respectively, and the upper nut 6 and the lower nut 5 are connected, so that the installed ejector pin 2 has bidirectional fastening force, can effectively prevent the ejector pin 2 from loosening, and also avoids the difficulty in dismounting and mounting caused by the abrasion of the bottom screw hole relative to the existing mounting mode;

[0036] By setting the limiting sliding groove 15 on the side of the embedding groove 14, the limiting sliding block 222 is arranged on the ejector pin 2 and is in sliding connection with the limiting sliding groove 15, so that the ejector pin 2 can be directionally limited, and it is not easy to rotate, thereby improving the stability of the installation.

[0037] The above embodiment is only a preferred embodiment of the present application, and cannot be used to limit the scope of protection of the present application. Any non-substantial change and replacement made by the person skilled in the art on the basis of the present application shall belong to the scope of protection required by the present application.

Claims

1. A high-stability plunger pin mounting structure comprising a press lower die seat (1), characterized in that, The punch lower die seat (1) is provided with an upper mounting groove (12) and a lower mounting groove (11) on the upper and lower surfaces respectively, an embedding groove (14) is formed in the bottom of the upper mounting groove (12), and a pop-up pin (2) is placed in the embedding groove (14). The pop-up pin (2) comprises a mounting column (21) mounted in the embedding groove (14), a lifting groove (211) is formed by recessing the top end of the mounting column (21) downward, a jacking column (22) is slidably arranged in the lifting groove (211), a jacking spring (23) is arranged between the jacking column (22) and the bottom of the lifting groove (211), a connecting stud (3) is integrally formed at the bottom of the mounting column (21), the connecting stud (3) extends into the lower mounting groove (11) and is threadedly connected with a lower nut (5), an external thread (213) is arranged above the outer surface of the mounting column (21), and the external thread (213) is partially arranged in the upper mounting groove (12) and is threadedly connected with an upper nut (6).

2. The high-stability ejector pin mounting structure of claim 1, wherein, The outer diameter of the lower nut (5) is smaller than the inner diameter of the lower mounting groove (11), and the outer diameter of the upper nut (6) is larger than the inner diameter of the upper mounting groove (12).

3. The high-stability ejector pin mounting structure of claim 1, wherein, A through interface (13) is formed in the bottom of the embedding groove (14), the through interface (13) is communicated with the lower mounting groove (11), the connecting stud (3) is arranged in the lower mounting groove (11) through the through interface (13), and a gasket (4) is further arranged between the lower mounting groove (11) and the lower nut (5).

4. The high-stability ejector pin mounting structure of claim 1, wherein, A vertically distributed limiting sliding hole (212) is formed in the outer surface of the mounting column (21), and the limiting sliding hole (212) is communicated with the lifting groove (211); A lifting disc (221) is arranged at the bottom of the jacking column (22), the lifting disc (221) is slidably arranged in the lifting groove (211), and a limiting sliding block (222) is integrally formed on the outer circle of the lifting disc (221), and the limiting sliding block (222) is slidably arranged in the limiting sliding groove (15).

5. The high-stability ejector pin mounting structure of claim 4, wherein, A limiting sliding groove (15) is formed in the inner wall of the embedding groove (14), and the top end of the limiting sliding groove (15) is communicated with the upper mounting groove (12).

6. The high-stability ejector pin mounting structure of claim 5, wherein, The limiting sliding block (222) extends out of the limiting sliding hole (212) and is arranged outside, and the limiting sliding block (222) is slidably arranged in the limiting sliding groove (15).

Images