Small spring seat stamping compound die

Abstract

The utility model discloses a small spring seat stamping compound die which comprises an upper die plate and a lower die plate, an upper die seat is arranged on the upper die plate, a movable material pressing plate is arranged on the upper die seat, an outer male die and an inner male die are fixed on the upper die seat, a movable material ejecting block is arranged on the upper die seat and located between the outer male die and the inner male die, a lower die seat is arranged on the lower die plate, and the lower die seat is connected with the lower die seat. A material base plate and an inner female die are fixed to the lower die base, a movable outer female die is arranged on the lower die base, the material pressing plate is opposite to the material base plate, the outer male die is opposite to the outer female die, the material ejecting block is opposite to the inner female die, the inner male die is opposite to the blanking groove, and in the stamping completion state, the stamping end face of the outer male die is lower than the inner female die, and a stamping gap is formed between the outer male die and the inner female die. The small spring seat machining device has the advantages that machining and manufacturing of small spring seats are achieved, the whole device is simple, machining quality is good, and it can be guaranteed that the small spring seats are produced according to quality and quantity; the stamping process is reasonable, and stamping quality can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring seat processing and manufacturing, and specifically relates to a small spring seat stamping composite die. Background Art

[0002] refer to Figure 1 As shown in the figure, the small spring seat is an important component of the automatic adjuster of the bidirectional brake shoe clearance of railway freight cars. It is mainly used to support and position the small spring, and plays a certain role in the realization of the brake adjuster function. The quality of the small spring seat processing has a great impact on the stability of the small spring during use. At present, the processing and manufacturing of the small spring seat is relatively complicated, and multiple stamping processes and a variety of stamping equipment are often used for processing and manufacturing. However, multiple stamping processes are not conducive to the processing and production of the small spring seat and there are many transfer processes, which can easily cause overall quality instability and affect the timely delivery of the production plan. Utility Model Content

[0003] The utility model aims to provide a small spring seat stamping compound die, which solves the problem of low efficiency and unstable quality of producing small spring seats by existing stamping dies.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A small spring seat stamping compound die comprises an upper die plate and a lower die plate which move relative to each other in a stamping direction, an upper die plate is provided on the upper die plate, a pressure plate which moves relative to each other in the stamping direction is provided on the upper die plate, an outer punch and an inner punch are fixed on the upper die plate, a top material block which moves relative to each other in the stamping direction is provided on the upper die plate, the top material block is located between the outer punch and the inner punch, a lower die plate is provided with a lower die plate, a material seat plate and an inner concave die are fixed on the lower die plate, an outer concave die which moves relative to each other in the stamping direction is provided on the lower die plate, the pressure plate is opposite to the material seat plate, the outer punch is opposite to the outer concave die, the top material block is opposite to the inner concave die, the inner punch is opposite to the blanking groove, and when the stamping is completed, the stamping end face of the outer punch is lower than the stamping end face of the inner concave die and a stamping gap is formed between the two.

[0006] Furthermore, a spring-pressing assembly is provided between the upper die seat and the pressing plate.

[0007] Furthermore, in the state before stamping, the stamping end surface of the pressing plate is lower than the stamping end surfaces of the outer punch and the inner punch.

[0008] Furthermore, a push rod assembly is provided between the upper template and the ejecting block.

[0009] Furthermore, the lifting block is in a free-moving state.

[0010] Furthermore, in the state before stamping, the stamping end surface of the outer punch is lower than the stamping end surface of the inner punch.

[0011] Furthermore, it also includes a spring top component that acts on the outer concave mold.

[0012] Furthermore, the blanking trough is a stepped hole, and the hole diameter increases gradually from top to bottom.

[0013] Furthermore, the blanking groove is a through hole formed between the inner concave mold and the lower mold plate.

[0014] Furthermore, the upper template is provided with a guide sleeve, and the lower template is provided with a guide column, and the guide sleeve and the guide column are sleeved and matched along the stamping direction.

[0015] Beneficial effects of the utility model:

[0016] (1) The processing and manufacturing of small spring seats are realized. The overall equipment is simple and the processing quality is good, which can ensure that the small spring seats are produced in quality and quantity.

[0017] (2) During the stamping process, the material is first pressed and fixed, then the plate is punched out and deformed and bent, and then the center of the plate is punched out. Finally, the upper and lower edges are pressed and formed. The stamping process is reasonable and can ensure the stamping quality.

[0018] The aforementioned main scheme of the utility model and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and protected by the utility model; and in the utility model, (non-conflicting options) options and other options can also be freely combined. After understanding this scheme, those skilled in the art can understand that there are many combinations based on the existing technology and common knowledge, all of which are technical schemes to be protected by the utility model, and they are not exhaustively listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the small spring seat.

[0020] Figure 2 It is a schematic diagram of the structure of the utility model before stamping.

[0021] Figure 3 It is a schematic diagram of the structure of the utility model in a stamping completion state.

[0022] In the figure: 1-upper template, 2-lower template, 3-upper die seat, 4-pressing plate, 5-spring-pressing assembly, 6-external punch, 7-top block, 8-inner punch, 9-push rod assembly, 10-guide sleeve, 11-lower die seat, 12-material seat plate, 13-external concave die, 14-inner concave die, 15-spring-pushing assembly, 16-guide column. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments and drawings.

[0024] refer to Figure 2 and Figure 3 As shown, a small spring seat stamping compound die includes an upper die plate 1, a lower die plate 2, an upper die seat 3, a pressure plate 4, a spring pressing assembly 5, an outer punch 6, a ejection block 7, an inner punch 8, a push rod assembly 9, a guide sleeve 10, a lower die seat 11, a material seat plate 12, an outer die 13, an inner die 14, a spring ejection assembly 15 and a guide column 16.

[0025] The upper template 1 and the lower template 2 move relative to each other along the stamping direction. Other components are placed based on the upper template 1 and the lower template 2. The two templates move relative to each other to achieve the punching or separation between the molds for stamping operations. Generally, the upper template 1 moves while the lower template 2 remains fixed.

[0026] An upper die base 3 is fixed on the upper die plate 1 by bolts, and a lower die base 11 is fixed on the lower die plate 2 by bolts. Several dies and / or matching components are respectively placed on the upper die base 3 and the lower die base 11 to ensure support and limitation of the die during stamping.

[0027] A pressing plate 4 which moves relative to the stamping direction is provided on the upper die base 3 and is located at the outermost portion. A material seat plate 12 is fixed on the lower die base 11 and is also located at the outermost portion. The pressing plate 4 is opposite to the material seat plate 12, and the material plate is clamped between the stamping end faces of the pressing plate 4 and the stamping end faces of the material seat plate 12.

[0028] A spring-pressing assembly 5 is provided between the upper die seat 3 and the pressing plate 4, and the spring-pressing assembly 5 is used to provide downward elastic force for the pressing plate 4, so as to realize elastic clamping of the pressing plate 4 and the material seat plate 12 on the material plate. At the same time, the pressing plate 4 is sleeved on the outer punch 6, and can have good precision and stability when moving.

[0029] The upper die seat 3 is fixed with an outer punch 6 by bolts, and the lower die seat 11 is provided with an outer die 13 that moves relatively along the stamping direction. The outer punch 6 is opposite to the outer die 13, and the material sheet is clamped between the stamping end faces of the outer punch 6 and the stamping end faces of the outer die 13. When the upper die plate 1 pushes the outer punch 6 to move downward, the outer punch 6 overcomes the resistance of the outer die 13, punches and deforms the material sheet, so that the outer part of the material sheet remains on the material seat plate 12, while the inner part is processed and formed. In the process of the outer punch 6 punching down, the deformation of the material sheet is also a gradual process, until the outer die 13 is pressed down to the limit position, the outer edge of the workpiece is formed.

[0030] The spring-top assembly 15 provides elastic support for the outer die 13. During the downward punching process of the outer punch 6, it is necessary to overcome the elastic force provided by the spring-top assembly 15 to the outer die 13 to achieve the breaking and extrusion deformation of the material sheet. When the outer punch 6 is reset upward, the spring-top assembly 15 is lifted up again to push out the processed workpiece.

[0031] An inner punch 8 is fixed to the upper die seat 3 by bolts. The inner punch 8 is opposite to the blanking chute. The inner punch 8 and the blanking chute are both located at the center. The punching end face of the inner punch 8 punches the material plate, and the center of the remaining inner part of the material plate is processed again. The punched waste is discharged through the blanking chute.

[0032] The upper die base 3 is provided with a lift block 7 which moves relatively along the stamping direction. The lift block 7 is located between the outer punch 6 and the inner punch 8. The lower die base 11 is fixed with an inner die 14 by bolts. The lift block 7 is opposite to the inner die 14. The stamping end face of the lift block 7 and the stamping end face of the inner die 14 clamp the material plate.

[0033] A push rod assembly 9 is provided between the upper template 1 and the ejection block 7. The ejection block 7 is in a free motion state, that is, the push rod assembly 9 does not limit the up and down movement of the ejection block 7 within a certain stroke. Only when the ejection block 7 moves to the upper limit position, the push rod assembly 9 is used to support the ejection block 7 to complete the inner edge forming of the workpiece.

[0034] The position of the upper mold plate 1 is defined as high, and the position of the lower mold plate 2 is defined as low. In the pre-stamping state, the stamping end surface of the pressing plate 4 is lower than the stamping end surfaces of the outer punch 6 and the inner punch 8, that is, during the stamping process, the pressing plate 4 first contacts the material sheet to achieve elastic compression of the material sheet for subsequent operations.

[0035] In the state before stamping, the stamping end face of the outer punch 6 is lower than the stamping end face of the inner punch 8, that is, the outer punch 6 first contacts the material sheet, punches the material sheet and performs extrusion forming, and then the inner punch 8 punches the center.

[0036] When the stamping is completed, the stamping end face of the outer punch 6 is lower than the stamping end face of the inner die 14 and a stamping gap is formed between the two. The stamping end face of the outer punch 6 is lower than the inner die 14, so the inner and outer bending of the workpiece is maintained, and the stamping gap accommodates the part of the workpiece that changes from horizontal to vertical.

[0037] The blanking trough is a stepped hole, the aperture of which increases gradually from top to bottom. Specifically, the blanking trough is a through hole formed between the inner concave die 14 and the lower die plate 2 to facilitate the automatic falling of waste. A guide sleeve 10 is provided on the upper die plate 1, and a guide post 16 is provided on the lower die plate 2. The guide sleeve 10 and the guide post 16 are sleeved and matched along the stamping direction to ensure the accuracy and stability during stamping.

[0038] The working process of the utility model is as follows: in simple terms, the material plate is squeezed and positioned by the pressing plate, and then the outer punch punches the material plate once, and then continues to press down to deform it, and part of the material plate enters the stamping gap under the extrusion staggered action of the outer punch and the inner die, and then the inner punch punches the material plate for a second time, and finally the outer punch shapes the outer edge, and the top block shapes the inner edge.

[0039] The above basic examples and further optional examples of the utility model can be freely combined to form multiple embodiments, which are all embodiments that can be adopted and claimed for protection by the utility model. In the scheme of the utility model, each optional example can be arbitrarily combined with any other basic examples and optional examples.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A small spring seat stamping compound die, comprising an upper die plate (1) and a lower die plate (2) that move relative to each other along a stamping direction, characterized in that: The upper mold plate (1) is provided with an upper mold base (3), the upper mold base (3) is provided with a pressure plate (4) that moves relatively along the stamping direction, the upper mold base (3) is fixed with an outer punch (6) and an inner punch (8), the upper mold base (3) is provided with a push-up block (7) that moves relatively along the stamping direction, the push-up block (7) is located between the outer punch (6) and the inner punch (8), the lower mold plate (2) is provided with a lower mold base (11), and the lower mold base (11) is fixed with a material base The lower die base (11) is provided with an outer die (13) which moves relatively along the stamping direction, the material pressing plate (4) is opposite to the material base plate (12), the outer convex die (6) is opposite to the outer convex die (13), the material ejecting block (7) is opposite to the inner convex die (14), the inner convex die (8) is opposite to the blanking groove, and when the stamping is completed, the stamping end face of the outer convex die (6) is lower than the stamping end face of the inner convex die (14) and a stamping gap is formed between the two.

2. The small spring seat stamping compound die according to claim 1, characterized in that: A spring-pressing assembly (5) is provided between the upper die seat (3) and the pressing plate (4).

3. The small spring seat stamping compound die according to claim 1 or 2, characterized in that: In the pre-punching state, the punching end surface of the pressing plate (4) is lower than the punching end surfaces of the outer punch (6) and the inner punch (8).

4. The small spring seat stamping compound die according to claim 1, characterized in that: A push rod assembly (9) is provided between the upper template (1) and the ejector block (7).

5. The small spring seat stamping compound die according to claim 1 or 4, characterized in that: The lifting block (7) is in a free-moving state.

6. The small spring seat stamping compound die according to claim 1, characterized in that: In the pre-punching state, the punching end surface of the outer punch (6) is lower than the punching end surface of the inner punch (8).

7. The small spring seat stamping compound die according to claim 1, characterized in that: It also includes a spring top assembly (15) that acts on the outer concave mold (13).

8. The small spring seat stamping compound die according to claim 1, characterized in that: The blanking trough is a stepped hole, and the hole diameter increases gradually from top to bottom.

9. The small spring seat stamping compound die according to claim 1 or 8, characterized in that: The blanking groove is a through hole formed between the inner concave mold (14) and the lower mold plate (2).

10. The small spring seat stamping compound die according to claim 1, characterized in that: The upper mold plate (1) is provided with a guide sleeve (10), and the lower mold plate (2) is provided with a guide post (16). The guide sleeve (10) and the guide post (16) are sleeved and matched with each other along the stamping direction.

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