Punching burnishing die

Abstract

The utility model discloses a punching and burnishing die, and relates to the technical field of hole machining. The die comprises a mounting base, a lower female die and a lower female die punching piece, the lower female die is embedded in the upper surface of the mounting base, the lower female die punching piece is embedded in the upper surface of the lower female die, a through hole is formed in one surface of the lower female die punching piece and communicated with the interior of the lower female die, and a connecting piece is embedded in the upper surface of the lower female die punching piece. A through hole is also formed in one surface of the connecting piece, and two supporting rods are welded to the upper surface of the mounting base and arranged on the two sides of the lower female die respectively. According to the utility model, through the burnishing piece structure, burnishing of holes is completed while punching is carried out, so that the straightness of the holes is achieved, taper holes are avoided, the surfaces of the burnished holes are hardened, and the effects of increasing the contact surface and resisting wear are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hole processing, in particular to a punching and extruding die. Background Art

[0002] The hole processing method is completed by drilling or punching. The disadvantage of drilling is that the efficiency is slow, and the disadvantage of punching is that the inner hole fracture layer is large, and the hole presents a tapered shape, resulting in a small contact surface with the shaft. The hole wears quickly during use. Part of the existing connecting fork pin hole is drilled, and the drilling efficiency is relatively slow, and the inner hole finish is not good. Another method is punching. The punched holes are all tapered, and the hole part needs to be installed with a pin shaft, resulting in a reduction in the contact surface between the pin shaft and the hole. Utility Model Content

[0003] The utility model aims to provide a punching and polishing die to solve the problem of poor smoothness of the existing die.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is a punching and extruding die, comprising a mounting base, a lower concave die and a lower concave die punching piece, wherein the lower concave die is embedded in the upper surface of the mounting base, the lower concave die punching piece is embedded in the upper surface of the lower concave die, a through hole is arranged on one surface of the lower concave die punching piece, the through hole is communicated with the inside of the lower concave die, a connecting piece is embedded on the upper surface of the lower concave die punching piece, a through hole is also arranged on one surface of the connecting piece, two support rods are welded on the upper surface of the mounting base, and the two support rods are respectively arranged on both sides of the lower concave die.

[0006] Furthermore, support plates are welded on the upper surfaces of the two support rods, a mounting plate is embedded on the upper surface of the support plate, and a stamping cylinder is embedded on the upper surface of the mounting plate.

[0007] Furthermore, a punching rod is embedded in the lower surface of the punching cylinder, one end of the punching rod passes through the upper surface of the support plate and the mounting plate, and two auxiliary rods are welded to the lower surface of the support plate.

[0008] Furthermore, the two auxiliary rods are respectively arranged on both sides of the punching rod, and the peripheral side surfaces of the punching rod are slidably matched with the support plate and the mounting plate.

[0009] Furthermore, one end of the punching rod extends to below the mounting plate, and an upper punch is embedded on one end of the punching rod.

[0010] Furthermore, a light extrusion component is embedded on the lower surface of the upper punch, and an upper punch punching component is embedded on the lower surface of the light extrusion component.

[0011] Furthermore, the diameter of the extruded part is larger than the diameter of the upper punch punching part, and the hole is extruded while punching, so that the hole is straight and there will be no tapered hole. The surface of the extruded hole is also hardened, so as to increase the contact surface and achieve the effect of wear resistance. The upper punch punching part and the lower die punching part cooperate with each other.

[0012] The utility model has the following beneficial effects:

[0013] The utility model mold makes the matching contact surface between the hole and the shaft larger. At the same time, through the extrusion piece structure, the hole is extruded at the same time as the hole is punched, so that the hole is straight and there will be no tapered hole. The surface of the extruded hole is also hardened, so as to achieve the effect of increasing the contact surface and wear resistance.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a punching and extruding die of the utility model;

[0017] Figure 2 This is a front structural schematic diagram of a punching and extruding die of the utility model;

[0018] Figure 3 It is a right view structural schematic diagram of a punching and extruding die of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of a top view of the punching and extruding die.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Mounting base; 2. Lower concave die; 3. Lower concave die punching part; 4. Connecting part; 5. Support rod; 6. Support plate; 7. Mounting plate; 8. Stamping cylinder; 9. Stamping rod; 10. Upper punch; 11. Extrusion part; 12. Upper punch punching part; 13. Auxiliary rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0024] See also Figure 1-Figure 4 As shown, the utility model is a punching and extruding die, comprising a mounting base 1, a lower concave die 2 and a lower concave die punching member 3, the lower concave die 2 is embedded in the upper surface of the mounting base 1, the lower concave die punching member 3 is embedded in the upper surface of the lower concave die 2, a surface of the lower concave die punching member 3 is provided with a through hole, the through hole is connected with the interior of the lower concave die 2, a connecting member 4 is embedded in the upper surface of the lower concave die punching member 3, a surface of the connecting member 4 is also provided with a through hole, two support rods 5 are welded on the upper surface of the mounting base 1, and the two support rods 5 are respectively arranged on both sides of the lower concave die 2.

[0025] A support plate 6 is welded to the upper surface of the two support rods 5 , a mounting plate 7 is embedded on the upper surface of the support plate 6 , and a stamping cylinder 8 is embedded on the upper surface of the mounting plate 7 .

[0026] A punching rod 9 is embedded on the lower surface of the punching cylinder 8 , one end of the punching rod 9 passes through the upper surface of the support plate 6 and the mounting plate 7 , and two auxiliary rods 13 are welded to the lower surface of the support plate 6 .

[0027] The two auxiliary rods 13 are respectively arranged on both sides of the punching rod 9 , and the side surfaces of the punching rod 9 are slidably matched with the support plate 6 and the mounting plate 7 .

[0028] One end of the punch rod 9 extends to below the mounting plate 7 , and an upper punch 10 is embedded on one end of the punch rod 9 .

[0029] An extrusion piece 11 is embedded on the lower surface of the upper punch 10 , and an upper punch punching piece 12 is embedded on the lower surface of the extrusion piece 11 .

[0030] The diameter of the extrusion piece 11 is larger than the diameter of the upper punch punching piece 12. The hole is extruded while punching, so that the hole is straight and there will be no tapered hole. The surface of the extruded hole is also hardened, so as to increase the contact surface and achieve the effect of wear resistance. The upper punch punching piece 12 and the lower die punching piece 3 cooperate with each other.

[0031] See also Figure 1-Figure 4 As shown, the utility model is a punching and extruding die, and the method of using the utility model is as follows: through the extruding piece 11 structure, the hole is extruded at the same time as the punching, so that the hole is straight, there will be no tapered hole, and the surface of the extruded hole is hardened, so as to achieve the effect of increasing the contact surface and wear resistance; making the matching contact surface between the hole and the shaft larger.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A punching and extruding die, comprising a mounting base (1), a lower die (2) and a lower die punching member (3), characterized in that: The lower die (2) is mounted on the upper surface of the mounting base (1); the lower die punching piece (3) is mounted on the upper surface of the lower die (2); a through hole is provided on one surface of the lower die punching piece (3); the through hole is communicated with the interior of the lower die (2); a connecting piece (4) is mounted on the upper surface of the lower die punching piece (3); a through hole is also provided on one surface of the connecting piece (4); two support rods (5) are welded on the upper surface of the mounting base (1); the two support rods (5) are respectively provided on both sides of the lower die (2).

2. A punching and extruding die according to claim 1, characterized in that: A support plate (6) is welded to the upper surface of the two support rods (5), a mounting plate (7) is embedded on the upper surface of the support plate (6), and a stamping cylinder (8) is embedded on the upper surface of the mounting plate (7).

3. A punching and extruding die according to claim 2, characterized in that: A punching rod (9) is embedded on the lower surface of the punching cylinder (8), one end of the punching rod (9) penetrates the upper surface of the support plate (6) and the mounting plate (7), and two auxiliary rods (13) are welded to the lower surface of the support plate (6).

4. A punching and extruding die according to claim 3, characterized in that: The two auxiliary rods (13) are respectively arranged on both sides of the punching rod (9), and the peripheral side surfaces of the punching rod (9) are slidably matched with the support plate (6) and the mounting plate (7).

5. A punching and extruding die according to claim 4, characterized in that: One end of the punching rod (9) extends to below the mounting plate (7), and an upper punch (10) is embedded at one end of the punching rod (9).

6. A punching and extruding die according to claim 5, characterized in that: The lower surface of the upper punch (10) is embedded with an extrusion piece (11), and the lower surface of the extrusion piece (11) is embedded with an upper punch punching piece (12).

7. A punching and extruding die according to claim 6, characterized in that: The diameter of the extrusion piece (11) is greater than the diameter of the upper punch punching piece (12), and the upper punch punching piece (12) and the lower die punching piece (3) cooperate with each other.

Images