Engine bearing bush punching device

Abstract

The utility model provides an engine bearing bush punching device which relates to the field of engine bearing bush punching and comprises a bearing bush punching machine base, a punching table and a punching drill bit, the punching table is fixed on the upper surface of the bearing bush punching machine base, the punching drill bit is arranged at the upper end of the punching table, and an angle adjusting mechanism is installed in the middle of the punching table. A fixing column is connected to the middle of the angle adjusting mechanism through a coupler, an adjusting stud is connected to the middle of the fixing column in a penetrating mode, a stamping bottom plate is fixed to the upper end of the adjusting stud through a supporting plate, L-shaped pressing plates are symmetrically distributed on the left side and the right side of the stamping bottom plate, and V-shaped connecting blocks are connected to the rear sides of the L-shaped pressing plates through lead screw nuts. And the inner side of the V-shaped connecting block is sleeved with a rotating shaft of the angle adjusting mechanism through a bearing. The punching device solves the problem that in the prior art, inertia of rotation adjustment of a limiting plate easily drives a bearing bush of a semi-cylindrical face to slide and move, and consequently punching hole position deviation is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of engine bearing bush punching, and particularly relates to an engine bearing bush punching device. Background Technique

[0002] An engine bearing bush is the part that contacts the journal of a sliding bearing. It is a semi-cylindrical tile-shaped part, usually made of wear-resistant materials such as bronze and antifriction alloy. During processing, it is necessary to punch holes in it to ensure the circulation of lubricating oil. After retrieval, in the prior art (publication number: CN202121226740.9), a punching device for bearing bush production that is convenient for positioning is described. It is recorded in the text that "by making the cross-section of the positioning rod be stepped and the middle part of the positioning rod be in snap-fit connection with the positioning hole, and the front end of the positioning rod be in sliding connection with the positioning hole, it is convenient to control the snap-fit or sliding between the positioning rod and the positioning hole, so as to conveniently adjust the angle of the limiting plate, so as to adjust the positioning angle of the bearing bush for holes at different required angles". However, in the prior art, the inertia of the rotation adjustment of the limiting plate easily drives the semi-cylindrical bearing bush to slide and move, resulting in the deviation of the punching hole position. Content of the Utility Model

[0003] In order to overcome the defects existing in the prior art, the present utility model provides an engine bearing bush punching device to solve the problem that in the prior art, the inertia of the rotation adjustment of the limiting plate easily drives the semi-cylindrical bearing bush to slide and move, resulting in the deviation of the punching hole position.

[0004] To achieve the above object, an engine bearing bush punching device is provided, including: a bearing bush punching machine base, on the upper surface of which a punching table is fixed, and a punching drill bit is arranged at the upper end of the punching table.

[0005] An angle adjustment mechanism is installed in the middle of the punching table. The middle part of the angle adjustment mechanism is connected to a fixed column through a coupling. The middle part of the fixed column is penetrated and connected with an adjustment screw. The upper end of the adjustment screw is fixed with a punching bottom plate through a support plate. L-shaped pressing plates are symmetrically distributed on the left and right sides of the punching bottom plate. The rear side of the L-shaped pressing plate is connected to a V-shaped connecting block through a screw nut. The inner side of the V-shaped connecting block is sleeved on the rotating shaft of the angle adjustment mechanism through a bearing.

[0006] Further, an arc-shaped side plate is welded to the rear end of the punching table, a chute is opened on the surface of the arc-shaped side plate, and a punching mechanism is connected to the upper end of the punching drill bit.

[0007] Further, a rotating bracket is installed at the rear end of the punching mechanism; and the rotating bracket is connected to the rotating shaft of the angle adjustment mechanism, and the rear end of the rotating bracket is limited and connected in the chute of the arc-shaped side plate.

[0008] Further, a stamping bottom plate is fixed on the upper surface of the support plate; a rectangular chip removal groove is formed in the middle of the upper surface of the stamping bottom plate, and couplings are installed on the front and rear sides of the fixed column.

[0009] Further, an anti-slip pad is adhered to the lower surface of the L-shaped pressing plate; the anti-slip pad is closely attached to the outer arc surface of the engine bearing shell, and two sets of screw nuts are installed in the front end groove of the V-shaped connecting block.

[0010] Further, the upper end of the screw nut is connected with a stud head, and the screw nut is fixed to the rear side surface of the L-shaped pressing plate through a nut block.

[0011] Further, the stamping bottom plate, the support plate, the adjusting stud, the fixed column, the L-shaped pressing plate, the V-shaped connecting block and the screw nut constitute a clamping mechanism of the stamping table.

[0012] The beneficial effect of the present utility model is that the engine bearing shell punching device of the present utility model uses the L-shaped pressing plate and the stamping bottom plate to press the inner and outer arc surfaces of the engine bearing shell up and down, firmly pressing the engine bearing shell on the stamping table. The rotating shaft of the angle adjusting mechanism drives the bracket of the punching drill bit and the stamping bottom plate to rotate synchronously, so that the punching drill bit rotates and moves to a suitable punching position, preventing the punching hole position from shifting due to sliding when the engine bearing shell moves, ensuring that the engine bearing shell is stably placed on the punching table surface. At the same time, the stamping bottom plate is convenient for assisting in supporting the punching force received by the engine bearing shell, avoiding deformation and damage to the arc surface of the engine bearing shell, and improving the punching effect of the engine bearing shell punching device. Description of the Drawings

[0013] Figure 1 It is a front view structural schematic diagram of the engine bearing shell punching device according to an embodiment of the present utility model.

[0014] Figure 2 It is a front view partial sectional structural schematic diagram of the engine bearing shell punching device according to an embodiment of the present utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the stamping bottom plate according to an embodiment of the present utility model.

[0016] Figure 4 It is a front view connection structural schematic diagram of the L-shaped pressing plate according to an embodiment of the present utility model.

[0017] In the figure: 1, bearing shell punching machine base; 11, stamping table; 12, arc-shaped side plate; 13, chute; 2, stamping bottom plate; 21, support plate; 22, adjusting stud; 23, fixed column; 24, coupling; 3, punching drill bit; 31, stamping mechanism; 32, rotating bracket; 4, L-shaped pressing plate; 41, V-shaped connecting block; 42, anti-slip pad; 43, stud head; 44, screw nut; 45, bearing; 5, angle adjusting mechanism. Detailed implementation mode

[0018] Referring to Figures 1 to 4 As shown, the utility model provides an engine bearing bush punching device, including: a bearing bush punching machine base 1, a punching table 11 and a punching drill bit 3. The upper surface of the bearing bush punching machine base 1 is fixed with the punching table 11, and the punching drill bit 3 is arranged at the upper end of the punching table 11.

[0019] An angle adjusting mechanism 5 is installed in the middle of the punching table 11. The middle of the angle adjusting mechanism 5 is connected with a fixed column 23 through a coupling 24. The middle of the fixed column 23 is penetrated and connected with an adjusting stud 22. The upper end of the adjusting stud 22 is fixed with a punching bottom plate 2 through a support plate 21. L-shaped pressing plates 4 are symmetrically distributed on the left and right sides of the punching bottom plate 2. The rear side of the L-shaped pressing plate 4 is connected with a V-shaped connecting block 41 through a screw nut 44. The inner side of the V-shaped connecting block 41 is sleeved with the rotating shaft of the angle adjusting mechanism 5 through a bearing 45.

[0020] First, place the engine bearing bush upside down on the punching table 11 of the bearing bush punching machine base 1. Rotate the screw nut 44 to press down the punching bottom plate 2 against the outer arc surface of the engine bearing bush. Control the angle adjusting mechanism 5 to rotate a certain angle to make the punching drill bit 3 rotate and move to the punching position. Then rotate the engine bearing bush to make the punching bottom plate 2 move up and fit against the inner arc surface of the engine bearing bush. At this time, the punching mechanism 31 pushes the punching drill bit 3 to punch the engine bearing bush.

[0021] In this embodiment, an arc-shaped side plate 12 is welded to the rear end of the punching table 11. A chute 13 is opened on the surface of the arc-shaped side plate 12. The upper end of the punching drill bit 3 is connected with a punching mechanism 31. A rotating bracket 32 is installed at the rear end of the punching mechanism 31; and the rotating bracket 32 is connected with the rotating shaft of the angle adjusting mechanism 5, and the rear end of the rotating bracket 32 is limited and connected in the chute 13 of the arc-shaped side plate 12.

[0022] As a preferred implementation mode, the angle adjusting mechanism 5 includes a stepping motor, a rotating shaft and a controller. The controller controls the stepping motor to drive the rotating shaft to rotate a certain angle, so that the punching drill bit 3 moves to the punching position, and the punching mechanism 31 is used to push the punching drill bit 3 to perform punching processing.

[0023] In this embodiment, the punching bottom plate 2 is fixed on the upper surface of the support plate 21; and a rectangular chip removal groove is opened in the middle of the upper surface of the punching bottom plate 2. Couplings 24 are installed on the front and rear sides of the fixed column 23.

[0024] As a preferred embodiment, the stamping base plate 2 is connected to the rotating shaft of the angle adjustment mechanism 5 through the fixing column 23, so that the rotating shaft of the angle adjustment mechanism 5 drives the stamping base plate 2 and the punching drill bit 3 to rotate synchronously, thereby moving the stamping base plate 2 to be directly below the punching position of the engine bearing shell, facilitating the support of the punching force received by the engine bearing shell, and avoiding deformation and damage to the arc surface of the engine bearing shell.

[0025] In this embodiment, an anti-slip pad 42 is adhesively bonded to the lower surface of the L-shaped pressing plate 4; and the anti-slip pad 42 is in close contact with the outer arc surface of the engine bearing shell. Two sets of screw nuts 44 are installed in the front-end groove of the V-shaped connecting block 41. The upper end of the screw nut 44 is connected to a stud 43, and the screw nut 44 is fixed to the rear side surface of the L-shaped pressing plate 4 through a nut block.

[0026] As a preferred embodiment, the anti-slip pad 42 facilitates the L-shaped pressing plate 4 to tightly press against the outer arc surface of the engine bearing shell. The V-shaped connecting block 41 does not rotate along with the rotation of the rotating shaft, and only plays a role of sleeving on the rotating shaft. Rotate the screw nut 44 to adjust the downward pressure of the L-shaped pressing plate 4 on the engine bearing shell.

[0027] In this embodiment, the stamping base plate 2, the support plate 21, the adjusting stud 22, the fixing column 23, the L-shaped pressing plate 4, the V-shaped connecting block 41, and the screw nut 44 constitute the clamping mechanism of the stamping table 11.

[0028] As a preferred embodiment, the clamping mechanism of the stamping table 11 facilitates the stable clamping of the inner and outer arc surfaces of the punched engine bearing shell, prevents the punching hole position from shifting, and ensures that the engine bearing shell is stably placed on the punching table surface.

[0029] The engine bearing shell punching device of the present invention can effectively solve the problem in the prior art that the inertia of the rotation adjustment of the limiting plate easily drives the sliding movement of the bearing shell with a semi-cylindrical surface, resulting in the deviation of the punching hole position, prevent the punching hole position from shifting due to the sliding of the engine bearing shell during movement, ensure that the engine bearing shell is stably placed on the punching table surface. At the same time, the stamping base plate facilitates the auxiliary support of the punching force received by the engine bearing shell, avoids deformation and damage to the arc surface of the engine bearing shell, improves the punching effect of the engine bearing shell punching device, and is applicable to the engine bearing shell punching device.

Claims

1. An engine bearing punching device, comprising: A bearing punching machine base (1); a punching platform (11) is fixed on the upper surface of the bearing punching machine base (1), and a punching drill (3) is arranged at the upper end of the punching platform (11), characterized in that: An angle adjustment mechanism (5) is installed in the middle of the punching table (11), and a fixing column (23) is connected to the middle of the angle adjustment mechanism (5) through a coupling (24). An adjusting stud (22) is connected through the middle of the fixing column (23), and the upper end of the adjusting stud (22) is fixed to the punching base plate (2) through a support plate (21). L-shaped pressing plates (4) are symmetrically distributed on the left and right sides of the punching base plate (2), and the rear side of the L-shaped pressing plate (4) is connected to a V-shaped connecting block (41) through a screw nut (44). The inner side of the V-shaped connecting block (41) is sleeved with the rotating shaft of the angle adjustment mechanism (5) through a bearing (45).

2. The engine bearing punching device according to claim 1, characterized in that: An arc-shaped side plate (12) is welded to the rear end of the punching platform (11), a sliding groove (13) is provided on the surface of the arc-shaped side plate (12), and a punching mechanism (31) is connected to the upper end of the punching drill bit (3).

3. An engine bearing punching device according to claim 2, characterized in that: A rotating bracket (32) is installed at the rear end of the punching mechanism (31); the rotating bracket (32) is connected to the rotating shaft of the angle adjustment mechanism (5); and the rear end of the rotating bracket (32) is limit-connected in the slide groove (13) of the arc-shaped side plate (12).

4. The engine bearing punching device according to claim 1, characterized in that: A stamping base plate (2) is fixed on the upper surface of the support plate (21); a rectangular chip removal groove is provided in the middle of the upper surface of the stamping base plate (2); and couplings (24) are installed on the front and rear sides of the fixing column (23).

5. The engine bearing punching device according to claim 1, characterized in that: The lower surface of the L-shaped pressure plate (4) is bonded with an anti-skid pad (42), and the anti-skid pad (42) is in close contact with the outer arc surface of the engine bearing shell. Two sets of screw nuts (44) are installed in the front end groove of the V-shaped connecting block (41).

6. The engine bearing punching device according to claim 5, characterized in that: The upper end of the screw nut (44) is connected to a column head (43), and the screw nut (44) is fixed to the rear side surface of the L-shaped pressing plate (4) through a nut block.

7. The engine bearing punching device according to claim 1, characterized in that: The stamping base plate (2), the support plate (21), the adjusting studs (22), the fixing columns (23), the L-shaped pressing plate (4), the V-shaped connecting block (41) and the screw nut (44) constitute a clamping mechanism of the stamping platform (11).

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