Forming device for processing multiple axial oil grooves of rocker arm shaft of automobile engine

Abstract

A forming device for machining multiple axial oil grooves of an automobile engine rocker arm shaft is used in the field of automobile engine part manufacturing. The lower die plate is fixed to a punch press workbench, and the upper die plate is fixed to a punch press sliding table. The punches are fixed to the lower portion of the upper die plate through the punch bases, the U-shaped bases are fixed to the lower die plate, and the punches and the U-shaped bases are installed in pairs. The punches are arranged on the same vertical face of the upper die plate at the same height, one end of the lower die plate is provided with a positioning mandrel, one side of the lower die plate is provided with a side positioning seat, the inner side of the side positioning seat is provided with a mistake-proof pin, and a guide sleeve on the upper die plate is matched with a guide column on the lower die plate. After the rocker arm shaft is clamped in the U-shaped seat to be fixed, multiple oil grooves can be formed through one-time notching by means of a punching machine, so that the problems that milling of the multiple oil grooves in the axial direction of the rocker arm shaft is long in time consumption, cutters are prone to being broken, and workpieces need to be moved multiple times when the oil grooves are machined through single notching are solved, equipment is small and exquisite, manufacturing cost is low, production efficiency is improved, and manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine parts manufacturing, in particular to a forming device for machining axial multiple oil grooves of a rocker shaft of an automobile engine. Background Art

[0002] In the processing and manufacturing of automobile parts, many workpieces need to be processed with axial oil grooves, especially the processing of axial fine oil grooves of automobile engine rocker shafts. Since the oil grooves are slender and intermittent, most of the existing technologies use fine milling cutters for slow cutting, which is time-consuming and inefficient, and the fine milling cutters will break if you are not careful. There are also attempts to use a single oil groove stamping method, but since multiple oil grooves require multiple moves of the workpiece, it occupies a large operating space, there are difficulties in cost control and processing accuracy, and the processing efficiency is also limited. This non-human problem of multiple shutdowns to clamp workpieces is mainly because the axial multiple oil grooves of the rocker shaft cannot be formed at one time. For this reason, the existing engine rocker shaft axial multiple oil groove processing has the disadvantages of long time consumption, large tooling volume, low production efficiency and excessively high manufacturing costs. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the invention of the utility model is to provide a forming device for machining multiple axial oil grooves of a rocker arm shaft of an automobile engine, which can complete the machining of multiple axial oil grooves of the rocker arm shaft through one clamping.

[0004] To achieve the above-mentioned purpose of the invention, the lower template of the utility model is fixed on the punch press workbench, and the upper template is fixed on the punch press slide; the punch is fixed below the upper template through the punch seat, and the U-shaped seat is fixed on the lower template, and multiple punches and multiple U-shaped seats are installed in pairs.

[0005] Furthermore, the punch is arranged at the same height and the same vertical plane of the upper template, and the punch moves downward simultaneously to hit the rocker shaft to form multiple sections of fine oil grooves, so that the multiple oil grooves of the rocker shaft are on the same plane and have the same depth.

[0006] Furthermore, the U-shaped groove of the U-shaped seat is adapted to the shaft diameter of the rocker arm shaft.

[0007] Furthermore, a positioning mandrel is installed at one end of the lower template, and the positioning mandrel is matched with a radial hole at one end of the rocker arm shaft. The positioning mandrel fixes the rocker arm shaft in the U-shaped groove of the U-shaped seat.

[0008] Furthermore, a side positioning seat is installed on one side of the lower template, and the inner side of the side positioning seat abuts against an end surface of the rocker arm shaft fixed in the U-shaped seat.

[0009] Furthermore, an anti-misalignment pin 1 and an anti-misalignment pin 2 are provided on the inner side of the side positioning seat, and the anti-misalignment pin 1 and the anti-misalignment pin 2 are adapted to the axial inner hole of the end of the rocker arm shaft.

[0010] Furthermore, a mold handle is provided on the upper mold plate.

[0011] Furthermore, the guide sleeve on the upper template cooperates with the guide post installed on the lower template, and when the upper template moves downward, the guide sleeve and the guide post are slidably matched.

[0012] When in use, the rocker shaft is fixed in the U-shaped seat on the lower template with a positioning mandrel, the punch press is started, the pedal switch is stepped on, and the punch press slide drives the upper template to move downward. When the punch hits the rocker shaft, it impacts and forms a multi-section forming oil groove on it.

[0013] The present invention is simple in structure and easy to use, and has advantages of small size and low cost, and can be used in a variety of industries, such as machinery, automotive, automotive, building, machinery, and equipment. The present invention is simple in structure and easy to use, and can be used in a variety of industries, such as machinery, automotive, automotive, building, machinery, and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a simplified structural diagram of the utility model.

[0015] Figure 2 This is a simplified structural diagram of the utility model in the mold opening state.

[0016] Figure 3 It is a simplified structural diagram of the utility model in the mold closing state.

[0017] In the figure: 1. U-shaped seat; 2. lower template; 3. punch; 4. punch seat; 5. guide column; 6. guide sleeve; 7. anti-misalignment pin 1; 8. side positioning seat; 9. anti-misalignment pin 2; 10. positioning mandrel; 11. upper template; 12. die handle; 13. rocker arm shaft. DETAILED DESCRIPTION

[0018] like Figure 1 , Figure 2 , Figure 3As shown, the lower template 2 of the utility model is fixed on the punching machine workbench, and the upper template 11 is fixed on the punching machine slide; the upper template 11 is provided with a die handle 12, and the guide sleeve 6 on the upper template 11 cooperates with the guide column 5 installed on the lower template 2. When the upper template 11 moves downward, the guide sleeve 6 and the guide column 5 slide and cooperate to provide guidance for the movement of the upper template 11, thereby ensuring the forming accuracy of the multi-section fine oil grooves of the rocker arm shaft 13; three punches 3 are fixed to the bottom of the upper template 11 through the punch seat 4, and the three punches 3 are arranged at the same height and the same vertical plane of the upper template 11. When the upper template 11 drives the three punches 3 to move downward at the same time, they hit the rocker arm shaft 13 to form three sections of fine oil grooves, so as to ensure that the three oil grooves of the rocker arm shaft 13 are on the same plane and have the same depth; the U-shaped seat 1 is fixed on the lower template 2, and the three punches 3 and the three The U-shaped seats 1 are installed in pairs, and the U-shaped grooves of the U-shaped seats 1 are adapted to the axial diameter of the rocker shaft 13 to facilitate the placement of the rocker shaft 13 in the U-shaped seat 1; a positioning mandrel 10 is provided at one end of the lower template 2, and the positioning mandrel 10 is adapted to the radial hole at one end of the rocker shaft 13, and the positioning mandrel 10 fixes the rocker shaft 13 placed in the U-shaped seat 1; a side positioning seat 8 is provided on one side of the lower template 2, and the inner side of the side positioning seat 8 is abutted against an end face of the rocker shaft 13 fixed in the U-shaped seat 1, and an anti-misalignment pin 7 and an anti-misalignment pin 2 9 are provided on the inner side of the side positioning seat 8, and the anti-misalignment pin 1 7 and the anti-misalignment pin 2 9 are adapted to the axial inner hole at the end of the rocker shaft 13, and the U-shaped seat 1, the positioning mandrel 10, the side positioning seat 8, the anti-misalignment pin 1 7, and the anti-misalignment pin 2 9 cooperate with each other to firmly fix the rocker shaft 13 in the U-shaped seat 1.

[0019] The machining process of the axial multi-oil groove of the rocker arm shaft of the automobile engine of the utility model is as follows:

[0020] (a) Before placing the rocker shaft 13 into the U-shaped seat 1, close the mold and adjust the punching depth;

[0021] (b) The rocker arm shaft 13 is then fixed in the U-shaped seat 1 on the lower mold plate 2 using the positioning mandrel 10;

[0022] (c) Start the punch press and step on the pedal switch. The punch press slide drives the upper template 11 to move downward. When the punch 3 hits the rocker shaft 13, it impacts and forms multiple sections of forming oil grooves thereon.

[0023] The utility model can avoid the problems of long time consumption and easy breakage of tool in axial multi-oil groove milling and multiple movement of workpieces required for single groove punching of oil grooves, solves many shortcomings of existing tooling technology, and can punch and form multiple sections of fine oil grooves at one time, which is beneficial to improving production efficiency and reducing manufacturing costs.

Claims

1. A forming device for machining multiple axial oil grooves on a rocker shaft of an automobile engine, characterized in that: The lower template (2) is fixed on the punching machine workbench, and the upper template (11) is fixed on the punching machine slide; the punch (3) is fixed below the upper template (11) through the punch seat (4), and the U-shaped seat (1) is fixed on the lower template (2), and a plurality of punches (3) and a plurality of U-shaped seats (1) are installed in pairs; The punch (3) is arranged at the same height and on the same vertical plane of the upper mold plate (11), and the punch (3) moves downward simultaneously to strike the rocker arm shaft (13) to form multiple sections of fine oil grooves, so that the multiple oil grooves of the rocker arm shaft (13) are on the same plane and have the same depth.

2. The forming device for machining multiple axial oil grooves of a rocker arm shaft of an automobile engine according to claim 1, characterized in that: The U-shaped groove of the U-shaped seat (1) is adapted to the shaft diameter of the rocker arm shaft (13).

3. The forming device for machining multiple axial oil grooves of a rocker arm shaft of an automobile engine according to claim 1, characterized in that: A positioning mandrel (10) is mounted on one end of the lower template (2). The positioning mandrel (10) is matched with a radial hole at one end of a rocker arm shaft (13). The positioning mandrel (10) fixes the rocker arm shaft (13) in the U-shaped groove of the U-shaped seat (1).

4. The forming device for machining multiple axial oil grooves of a rocker arm shaft of an automobile engine according to claim 1, characterized in that: A side positioning seat (8) is installed on one side of the lower mold plate (2), and the inner side of the side positioning seat (8) abuts against an end surface of a rocker arm shaft (13) fixed in the U-shaped seat (1).

5. The forming device for machining multiple axial oil grooves in the rocker arm shaft of an automobile engine according to claim 4, characterized in that: An anti-misalignment pin 1 (7) and an anti-misalignment pin 2 (9) are provided on the inner side of the side positioning seat (8), and the anti-misalignment pin 1 (7) and the anti-misalignment pin 2 (9) are adapted to the axial inner hole at the end of the rocker arm shaft (13).

6. The forming device for machining multiple axial oil grooves in the rocker arm shaft of an automobile engine according to claim 1, characterized in that: The upper mold plate (11) is provided with a mold handle (12).

7. The forming device for machining multiple axial oil grooves in the rocker arm shaft of an automobile engine according to claim 1, characterized in that: The guide sleeve (6) on the upper template (11) cooperates with the guide post (5) mounted on the lower template (2); when the upper template (11) moves downward, the guide sleeve (6) and the guide post (5) slide and cooperate.

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