Camshaft cover plate stamping die

Abstract

The utility model relates to a camshaft cover plate stamping die which comprises an upper die base, a middle die base and a lower die base, an upper die is arranged in the middle die base, a lower die is arranged on the lower die base, stamping assemblies in one-to-one correspondence with salad holes are arranged in the middle die base, a process groove forming die is arranged on the bottom face of the upper die, and a groove forming die is arranged on the surface of the lower die. When the upper die and the lower die are pressed and closed, the punching assembly abuts against the surface of a plate body, the punching assembly is used for punching a countersink hole in the plate body, the process groove forming die is used for pressing a process groove, and the groove forming die is used for pressing a groove. In the stamping process, the countersink hole, the groove and the process groove of the plate body are synchronously formed, the step of engraving the process groove and the groove by an engraving machine is omitted, and the process is smooth and shortened. The cam shaft cover plate machining device has the effect of improving the cam shaft cover plate machining efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of stamping processing, and in particular to a camshaft cover stamping die. Background Art

[0002] The camshaft cover is an important part of the piston engine. Its function is to fix and protect the camshaft cover to prevent damage when the engine is running. It can also prevent oil leakage from the edge of the cover due to poor sealing.

[0003] Reference Figure 1 and Figure 2 The camshaft cover includes a plate body 01. The plate body 01 is usually a 4.0 mm thick SHHC pickling plate. A plurality of salad holes 02 are opened on the plate body 01. Two process grooves 03 are opened on the surface of the plate body 01, and a groove 04 is opened on the back. The traditional processing method of the camshaft cover is: the first step is to cut the material with a laser cutting machine; the second step is to put the material plate into a step-by-step die to punch pre-holes and salad holes; the third step is to use a stamping die to punch a blanking shape composite die; the fourth step is to engrave the process grooves 03 and the grooves 04 with an engraving machine.

[0004] The traditional camshaft cover plate processing technology is complicated. After multiple stampings, it is necessary to use an engraving machine to engrave the process groove 03 and the groove 04. The processing efficiency is low and there are obvious shortcomings. Utility Model Content

[0005] In order to improve processing efficiency, the present application provides a camshaft cover stamping die.

[0006] The camshaft cover stamping die provided in this application adopts the following technical solution:

[0007] A camshaft cover stamping die comprises an upper die seat, a middle die seat and a lower die seat, wherein the middle die seat is provided with an upper die, the lower die seat is provided with a lower die, the middle die seat is provided with stamping grooves corresponding to salad holes one by one, a stamping component is provided in the stamping grooves, a process groove forming die is provided on the bottom surface of the upper die, a groove forming die is provided on the surface of the lower die, when the upper die and the lower die are pressed and clamped, the stamping component abuts against the surface of the plate body, the stamping component is used to stamp the salad holes on the plate body, the process groove forming die is used to press the process groove, and the groove forming die is used to press the groove.

[0008] By adopting the above technical scheme, the plate body after being cut by the laser machine is placed in the mold. During the stamping process, multiple salad holes are punched on the stamping component plate body. At the same time, it is pressed by the process groove forming mold and the groove forming mold. The salad holes are formed and the process grooves and grooves are formed synchronously at the same time, thereby realizing the synchronous processing of the salad holes, grooves and process grooves of the plate body. This processing procedure omits the step of engraving the process grooves and grooves by the engraving machine, the process is smooth and shortened, and the processing efficiency of the camshaft cover is improved.

[0009] Optionally, the punching assembly includes a punch body arranged in the punching groove, and a frustum body for punching chamfers is arranged at one end of the punch body away from the upper die seat, and a cylinder for punching a circular hole is arranged under the frustum body.

[0010] By adopting the above technical solution, during the process of closing the upper mold and the die, the frustum presses the chamfered part in the salad hole, and the cylinder completes the punching operation of the salad hole, so that the punching component can achieve punching and chamfering at the same time, further improving the processing efficiency.

[0011] Optionally, a communicating positioning hole is provided on the lower die and the lower die base, the axis of the positioning hole is in the same straight line as the axis of the punch body, and a positioning pin that slides with the positioning hole is provided on the lower die base.

[0012] By adopting the above technical solution, after the plate body is installed between the upper die and the lower die, the upper die and the lower die can be accurately clamped through the guiding and positioning function of the first positioning column and the positioning groove, which is convenient to operate and has high punching quality.

[0013] Optionally, a support spring is provided in the positioning hole, one end of the support spring is connected to the bottom surface of the positioning hole, and the other end is connected to the bottom end of the positioning pin. When the support spring is in a natural state, one end of the positioning pin extends out of the positioning hole.

[0014] By adopting the above technical solution, the setting of the positioning pin realizes the precise positioning of the lower mold on the lower mold plate, and at the same time improves the accuracy of the punching component when punching salad holes.

[0015] Optionally, a positioning ring block is provided at one end of the punch body close to the upper die seat, and an annular groove slidably matched with the positioning ring block is opened on the inner side wall of the stamping groove, and the positioning ring block slidably matches with the annular groove.

[0016] By adopting the above technical scheme, during the process of closing the upper mold and the die, the top end of the locating pin is squeezed by the punching component, the supporting spring is compressed, and the locating pin is pressed into the locating hole. When the punching is completed, the punching component is away from the locating pin, the pressure on the supporting spring disappears, and the supporting spring recovers its deformation to drive the locating pin to reset, thereby lifting up the processed plate body, making it convenient for workers to take it out. With this arrangement, the processed plate body can be automatically demolded, thereby further improving the processing efficiency.

[0017] Optionally, a positioning ring block is provided at one end of the punch body close to the upper die seat, and an annular groove slidably matched with the positioning ring block is opened in the middle die seat, and the positioning ring block slidably matches with the annular groove.

[0018] By adopting the above technical solution, the annular groove plays the role of supporting the positioning ring block. When it needs to be removed, the worker pulls the positioning ring block, and the positioning ring block drives the punch body to move out of the middle die seat. The setting of the positioning ring block and the annular groove makes it easy for the worker to disassemble and assemble the punch body, thereby facilitating the maintenance and replacement of the punching components.

[0019] Optionally, a plurality of limiting columns are provided on the lower die base, the outer surfaces of the limiting columns are in contact with the outer surface of the lower die, and the top ends of the limiting columns are higher than the surface of the lower die.

[0020] By adopting the above technical solution, the setting of the limiting column plays the role of limiting the outer contour of the plate body, reducing the occurrence of the plate body being separated from the lower die due to multi-directional extrusion forces during the stamping process, thereby improving the stability during the stamping process.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The present application sets a punching component, a groove forming die and a process groove forming die. During the stamping process, the punching component punches multiple salad holes on the plate body, and at the same time, the salad holes are formed and the process grooves and grooves are formed synchronously, thereby realizing the synchronous processing of the salad holes, grooves and process grooves of the plate body. This processing procedure omits the step of engraving the process grooves and grooves by the engraving machine, shortens the process flow, and improves the processing efficiency of the camshaft cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front side of the camshaft cover.

[0024] Figure 2 This is a schematic diagram of the reverse side of the camshaft cover.

[0025] Figure 3 It is a schematic diagram of the structure of this application.

[0026] Figure 4 It is an exploded view of the die base and upper die in this application.

[0027] Figure 5 It is a cross-sectional view of the middle die base and the lower die base in this application.

[0028] Figure 6 It is an exploded view of the upper die and lower die base in this application.

[0029] Explanation of the reference numerals in the accompanying drawings: 01, plate body; 02, salad hole; 03, process groove; 04, groove; 1, mold frame; 2, upper mold base; 3, middle mold base; 31, stamping groove; 32, annular groove; 4, lower mold base; 5, upper mold; 6, lower mold; 51, process groove forming mold; 61, groove forming mold; 7, punching assembly; 71, punch body; 72, truncated cone body; 73, cylinder; 8, positioning ring block; 9, positioning column; 10, positioning hole; 11, positioning pin; 12, support spring; 13, limit column. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-6 This application is described in further detail.

[0031] The embodiment of the present application discloses a camshaft cover stamping die.

[0032] Reference Figure 3 and Figure 4 A camshaft cover stamping die includes a die frame 1, on which an upper die base 2, a middle die base 3 and a lower die base 4 are arranged from top to bottom. The top of the middle die base 3 is connected to the bottom of the upper die base 2, a lower die 6 is arranged on the lower die base 4, and an upper die 5 is connected inside the middle die base 3. A plate body 01 is placed in the gap between the upper die 5 and the lower die 6.

[0033] When processing the camshaft cover, the worker first uses a laser cutting machine to cut the material, and then puts the cut plate body 01 between the upper mold 5 and the lower mold 6 for the next step.

[0034] Reference Figure 3 , Figure 4 and Figure 5A process groove forming die 51 corresponding to the process groove 03 is provided on the lower surface of the upper die 5, and the process groove forming die 51 is used to press the process groove 03 on the plate body 01. A groove forming die 61 is provided on the surface of the lower die seat 4, and the groove forming die 61 is used to press the groove 04 on the plate body 01. A stamping groove 31 corresponding to the salad hole 02 on the plate body 01 is opened on the middle die seat 3, and a stamping component 7 is provided in each stamping groove 31. Specifically, the stamping component 7 includes a punch body 71 vertically arranged in the stamping groove 31, and the punch body 71 is arranged in the stamping groove 31. The end of the punch body 71 away from the upper die seat 2 is fixedly connected to a frustum body 72, and the frustum body 72 is used to punch the chamfered part in the salad hole 02. The lower surface of the frustum body 72 is fixedly connected to a cylinder 73, and the cylinder 73 is used to punch the salad hole 02. When the upper die 5 and the lower die 6 are pressed and molded, the cylinder 73 abuts against the surface of the plate body 01.

[0035] After placing the plate body 01, the worker performs stamping processing on the plate body 01. During the closing process of the upper die 5 and the lower die 6, the cylinder 73 on the punch body 71 punches out the round hole part of the salad hole 02, and then the frustum 72 punches out the chamfered part in the salad hole 02. The salad hole 02 on the plate body 01 is punched out once by the punching component 7. At the same time, the process groove 03 on the upper surface of the plate body 01 is pressed and formed by the process groove forming die 51, and the groove 04 on the lower surface is pressed and formed by the groove forming die 61, thereby realizing the synchronous processing of the salad hole 02, groove 04 and process groove 03 of the plate body 01. This processing procedure omits the step of engraving the process groove 03 and groove 04 by the engraving machine, the process is smooth and shortened, and the processing efficiency of the camshaft cover is improved.

[0036] Reference Figure 4 and Figure 5 A positioning ring block 8 is provided at one end of the punch body 71 close to the upper die seat 2. The positioning ring block 8 is fixedly sleeved on the outer surface of the punch body 71, and an annular groove 32 that is snap-fitted with the positioning ring block 8 is opened on the inner wall of the stamping groove 31.

[0037] The annular groove 32 plays the role of supporting the positioning ring block 8. When it needs to be taken out, the worker pulls the positioning ring block 8, and the positioning ring block 8 drives the punch body 71 to move out of the middle die seat 3. The setting of the positioning ring block 8 and the annular groove 32 is convenient for the worker to disassemble and assemble the punch body 71, thereby facilitating the maintenance and replacement of the punching component 7.

[0038] Reference Figure 5 and Figure 6 A plurality of positioning posts 9 are connected to the bottom surface of the upper die base 2 , and positioning grooves for slidingly cooperating with the positioning posts 9 are provided in the middle die base 3 and the upper die 5 .

[0039] After the plate body 01 is installed between the upper die 5 and the lower die 6, the upper die 5 and the lower die 6 can be precisely clamped together through the guiding and positioning function of the first positioning column 9 and the positioning groove, which facilitates the operation and improves the punching quality.

[0040] Reference Figure 5 and Figure 6 A plurality of interconnected positioning holes 10 are provided on the lower die 6 and the lower die base 4. The plurality of positioning holes 10 are arranged one by one corresponding to the punching components 7. The axis of the positioning hole 10 is on the same straight line as the axis of the punch body 71. A positioning pin 11 matching the positioning hole 10 is slidably connected in the positioning hole 10. A supporting spring 12 is provided in the positioning hole 10 close to the lower die base 4. One end of the supporting spring 12 is connected to the bottom surface of the positioning hole 10, and the other end is connected to the bottom surface of the positioning pin 11. When the supporting spring 12 is in a natural state, the positioning pin 11 extends out of the positioning hole 10 at one end away from the lower die base 4.

[0041] The setting of the locating pin 11 realizes the precise positioning of the lower die 6 on the lower die 6 plate, and at the same time improves the accuracy of the punching component 7 when punching the salad hole 02. In the process of the upper die 5 and the die clamping, the top of the locating pin 11 is squeezed by the punching component 7, the support spring 12 is compressed, and the locating pin 11 is pressed into the positioning hole 10. When the punching is completed, the punching component 7 is away from the locating pin 11, and the pressure on the support spring 12 disappears. The support spring 12 recovers its deformation and drives the locating pin 11 to reset, thereby lifting the processed plate body 01 to facilitate the workers to take it out. With this setting, the processed plate body 01 can be automatically demolded, thereby further improving the processing efficiency.

[0042] Reference Figure 5 and Figure 6 A plurality of limit columns 13 are connected to the lower die base 4. The limit columns 13 are distributed around the lower die 6 and the outer surfaces of the limit columns 13 are in contact with the outer surface of the lower die 6. The height of one end of the limit columns 13 close to the upper die 5 is higher than the horizontal plane on which the plate body 01 is placed on the lower die 6.

[0043] The setting of the limiting column 13 plays the role of limiting the outer contour of the plate body 01, reducing the occurrence of the plate body 01 being separated from the lower mold 6 due to the extrusion force from multiple directions during the stamping process, thereby improving the stability during the stamping process.

[0044] The implementation principle of a camshaft cover plate stamping die in an embodiment of the present application is as follows: a plate body 01 cut by a laser machine is placed into the die, and during the stamping process, a punching component 7 stamps a plurality of salad holes 02 on the plate body 01, and at the same time, the salad holes 02 are pressed by a process groove forming die 51 and a groove forming die 61, and the process grooves 03 and grooves 04 are formed synchronously while the salad holes 02 are formed, thereby realizing synchronous processing of the salad holes 02, grooves 04 and process grooves 03 of the plate body 01, and this processing procedure omits the step of engraving the process grooves 03 and grooves 04 by an engraving machine, and the process is streamlined and shortened, thereby improving the processing efficiency of the camshaft cover plate.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A camshaft cover stamping die, comprising an upper die seat (2), a middle die seat (3) and a lower die seat (4), wherein an upper die (5) is arranged in the middle die seat (3), and a lower die (6) is arranged on the lower die seat (4), characterized in that: The middle die seat (3) is provided with a punching groove (31) corresponding to the salad holes (02) one by one, a punching assembly (7) is arranged in the punching groove (31), a process groove forming die (51) is arranged on the bottom surface of the upper die (5), and a groove forming die (61) is arranged on the surface of the lower die (6). When the upper die (5) and the lower die (6) are pressed and clamped, the punching assembly (7) abuts against the surface of the plate body (01), the punching assembly (7) is used to punch the salad holes (02) on the plate body (01), the process groove forming die (51) is used to press the process groove (03), and the groove forming die (61) is used to press the groove (04).

2. A camshaft cover stamping die according to claim 1, characterized in that: The punching assembly (7) comprises a punch body (71) arranged in the punching groove (31), and a truncated cone (72) for punching chamfers is arranged at one end of the punch body (71) away from the upper die seat (2), and a cylindrical body (73) for punching a circular hole is arranged under the truncated cone (72).

3. A camshaft cover stamping die according to claim 1, characterized in that: A plurality of positioning columns (9) are provided on the bottom surface of the upper die seat (2), and positioning grooves which are slidably matched with the positioning columns (9) are provided on the middle die seat (3) and the upper die.

4. A camshaft cover stamping die according to claim 2, characterized in that: The lower die (6) and the lower die base (4) are provided with a communicating positioning hole (10), the axis of the positioning hole (10) and the axis of the punch body (71) are on the same straight line, and the lower die base (4) is provided with a positioning pin (11) that slidably cooperates with the positioning hole (10).

5. A camshaft cover stamping die according to claim 4, characterized in that: A support spring (12) is provided in the positioning hole (10), one end of the support spring (12) is connected to the bottom surface of the positioning hole (10), and the other end is connected to the bottom end of the positioning pin (11); when the support spring (12) is in a natural state, one end of the positioning pin (11) extends out of the positioning hole (10).

6. A camshaft cover stamping die according to claim 2, characterized in that: A positioning ring block (8) is provided at one end of the punch body (71) close to the upper die seat (2), and an annular groove (32) that slidably cooperates with the positioning ring block (8) is opened on the inner side wall of the punching groove (31), and the positioning ring block (8) slidably cooperates with the annular groove (32).

7. A camshaft cover stamping die according to claim 1, characterized in that: A plurality of limiting columns (13) are arranged on the lower die seat (4); the outer surfaces of the limiting columns (13) abut against the outer surface of the lower die (6); and the top ends of the limiting columns (13) are higher than the surface of the lower die (6).

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