A tool for clamping a camshaft bearing cap machining side surface

Abstract

The utility model discloses a kind of tooling for clamping camshaft bearing cover processing side, belong to engine accessory machining technical field, solve the problem of existing bearing cover processing efficiency slow. The tooling includes bottom plate, the bottom plate one end is equipped with two first clamping devices for clamping the upper side of processing bearing cover, the bottom plate other end is equipped with two second clamping devices for clamping the lower side of processing bearing cover, the first clamping device includes longitudinal clamping assembly, first die holder, locating block and two transverse clamping assemblies, the longitudinal clamping assembly and transverse clamping assembly are oppositely arranged on bottom plate, the first die holder is installed on the bottom plate of longitudinal clamping assembly side, the locating block is installed on first die holder. A kind of tooling for clamping camshaft bearing cover processing side of the utility model, while increasing clamping quantity, can be quickly clamped processing, effectively improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of engine parts processing technology, and in particular to a tooling for clamping the side of a camshaft bearing cover during processing. Background Technology

[0002] Camshaft bearing caps are critical engine components, requiring high precision in both individual machining and overall assembly. Due to their polyhedral nature, machining them is challenging. Existing machining processes involve manually clamping tooling to process the upper and lower sides, boring, and drilling. While this traditional process offers stable precision, only two products can be processed simultaneously on a single machine tool, resulting in low efficiency. With increasing market demand, daily production cannot meet order requirements. Therefore, a tooling solution is urgently needed that improves camshaft bearing cap production efficiency while meeting drawing specifications, thus satisfying market demands. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing a tooling for clamping the side of a camshaft bearing cover during machining. This tooling increases the number of clamping devices while enabling rapid clamping and machining, effectively improving machining efficiency. It is convenient to use and highly practical.

[0004] The technical solution adopted by this utility model is: a tooling for clamping the side of a camshaft bearing cover during machining, including a base plate. One end of the base plate is provided with two first clamping devices for clamping the upper side of the bearing cover during machining, and the other end of the base plate is provided with two second clamping devices for clamping the lower side of the bearing cover during machining. The first clamping device includes a longitudinal clamping assembly, a first mold base, a positioning block, and two transverse clamping assemblies. The longitudinal clamping assembly and the transverse clamping assembly are arranged opposite to each other on the base plate. The first mold base is installed on the base plate on one side of the longitudinal clamping assembly, and the positioning block is installed on the first mold base. The second clamping device includes a positioning plate and multiple longitudinal clamping assemblies. The positioning plate is fixed on the base plate, and the longitudinal clamping assemblies are arranged on both sides of the positioning plate.

[0005] As a further improvement, one end of the positioning plate is provided with a positioning pin that matches the bearing cover through the nail hole.

[0006] Furthermore, the longitudinal clamping assembly includes a positioning base, a connecting rod, a pressure block, and a first hydraulic cylinder. The positioning base is mounted on a base plate. Both sides of the pressure block are rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the positioning base. The first hydraulic cylinder is mounted on the positioning base, and the output end of the first hydraulic cylinder is connected to one end of the pressure block.

[0007] Furthermore, the lateral clamping assembly includes a cylinder mounting base and a second cylinder, wherein the cylinder mounting base is mounted on the base plate and the second cylinder is horizontally mounted on the cylinder mounting base.

[0008] Furthermore, a pad is provided on one side of the first mold base.

[0009] Furthermore, a support base is provided on the other side of the base plate of the longitudinal clamping assembly, and a positioning pin is provided on the support base.

[0010] Furthermore, the positioning block is in the shape of a "Z" and has a locking slot at the bottom.

[0011] Beneficial effects Compared with the prior art, this utility model has the following advantages: This utility model discloses a fixture for clamping the side of a camshaft bearing cover during machining. In use, first, the upper side and drilling are performed. The iron pins on the fixture's positioning surface are cleaned. The lower side of the bearing cover is used as the bottom positioning surface. Two pieces are placed on the workpiece with the first clamping device. The two positioning pins and positioning blocks are adjusted to ensure the bottom surfaces of the two products are flat. The second hydraulic cylinder is activated first, extending to press the bearing cover tightly against the positioning pins. The first hydraulic cylinder then presses the product downwards to press it tightly against the pad. Machining can then begin. After machining the upper side and drilling surface, the fixture is released. At this point, the product has already had the through-pin holes (positioning reference holes) machined. The bearing cover with one side machined is then mounted on the second clamping device. The machined through-pin holes of the bearing cover are inserted into the positioning pins on the positioning plate. The longitudinal clamping components on both sides are used to press the bearing cover tightly to facilitate machining of the lower side. Finally, two new blanks are mounted on the first clamping device. In this way, the CNC milling machine will process the top and bottom sides of the product and drill holes simultaneously after one revolution. It can achieve four-station clamping, making full use of the machine tool's processing space, saving employees' clamping time, and greatly improving processing efficiency. It is easy to use and has a wide range of applications. Attached Figure Description Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is an enlarged schematic diagram of the longitudinal clamping assembly in this utility model; Figure 3 This is a structural diagram illustrating the usage process of this utility model.

[0012] Wherein: 1-base plate, 2-longitudinal clamping assembly, 3-transverse clamping assembly, 4-first mold base, 5-positioning block, 6-support base, 7-positioning pin, 8-positioning pin, 9-positioning plate, 10-pad block, 11-upper side of bearing cover, 12-lower side of bearing cover, 21-pressure block, 22-connecting rod, 23-first oil cylinder, 24-positioning base, 31-oil cylinder mounting seat, 32-second oil cylinder. Detailed Implementation

[0013] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0014] See Figure 1-2 As shown, this utility model discloses a tooling for clamping the machined side of a camshaft bearing cover. It includes a base plate 1. One end of the base plate 1 has two first clamping devices for clamping the upper side of the bearing cover, and the other end has two second clamping devices for clamping the lower side of the bearing cover. Each first clamping device includes a longitudinal clamping assembly 2, a first mold base 4, a positioning block 5, and two transverse clamping assemblies 3. The longitudinal clamping assembly 2 and the transverse clamping assemblies 3 are arranged opposite each other on the base plate 1. The first mold base 4 is mounted on one side of the base plate 1 of the longitudinal clamping assembly 2, and the positioning block 5 is mounted on the first mold base 4. The second clamping device includes a positioning plate 9 and multiple longitudinal clamping assemblies 2. The positioning plate 9 is fixed to the base plate 1, and the longitudinal clamping assemblies 2 are arranged on both sides of the positioning plate 9. First, the upper side 11 of the bearing cover is machined and drilled. The iron pins on the tooling positioning surface are cleaned. The lower side 12 of the bearing cover is used as the bottom positioning surface. Two... At the workstation where the first clamping device is installed, the two positioning pins 7 and the positioning block 5 are adjusted to ensure that the bottom surfaces of the two products are flat. The second hydraulic cylinder 32 is started first, and the second hydraulic cylinder 32 extends to press the bearing cover tightly against the positioning pin 7. The first hydraulic cylinder 23 then presses the product down to press it tightly against the pad block 10. Then processing can begin. After processing the upper side and the drilled surface, the fixture is released. At this time, the through pin hole (positioning reference hole) of the product has been processed. The bearing cover with one side processed is installed on the second clamping device, and the through pin hole of the bearing cover is inserted into the positioning pin 8 on the positioning plate 9. The bearing cover is pressed by the longitudinal clamping components 2 on both sides so that the lower side 12 of the bearing cover can be processed. Then the two new blanks are installed on the first clamping device. In this way, after the CNC milling machine runs one revolution, the upper and lower sides of the product and the drilled hole will be processed simultaneously. Four-station clamping can be achieved, making full use of the machine tool's processing space, saving the operator's clamping time, and greatly improving processing efficiency.

[0015] Specifically, one end of the positioning plate 9 is provided with a positioning pin 8 that matches the through hole of the bearing cover, which is used to position the bearing cover on the machined side for easy and quick installation.

[0016] Preferably, the longitudinal clamping assembly 2 includes a positioning base 24, a connecting rod 22, a pressure block 21, and a first hydraulic cylinder 23. The positioning base 24 is mounted on the base plate 1. Both sides of the pressure block 21 are rotatably connected to one end of the connecting rod 22, and the other end of the connecting rod 22 is rotatably connected to the positioning base 24. The first hydraulic cylinder 23 is mounted on the positioning base 24, and the output end of the first hydraulic cylinder 23 is connected to one end of the pressure block 21. In use, the first hydraulic cylinder 23 moves upward, pushing one end of the pressure block 21 downward to press the bearing cover, thereby achieving a rapid clamping effect and saving the clamping time of the employees.

[0017] Furthermore, the lateral clamping assembly 3 includes a cylinder mounting base 31 and a second cylinder 32. The cylinder mounting base 31 is mounted on the base plate 1, and the second cylinder 32 is horizontally mounted on the cylinder mounting base 31. The second cylinder 32 extends out of its output end to press the bearing cover, thereby playing a lateral limiting role.

[0018] Furthermore, a pad 10 is provided on one side of the first mold base 4 to support the bearing cover, so as to press and limit the bearing cover.

[0019] Furthermore, a support seat 6 is provided on the bottom plate 1 on the other side of the longitudinal clamping assembly 2, and a positioning pin 7 is provided on the support seat 6, which plays a limiting role in the installation of the bearing cover, so as to press and limit the bearing cover.

[0020] Furthermore, the positioning block 5 is in the shape of a "Z" and has a bayonet at the bottom. The bayonet limits the bearing cover, thereby achieving the function of quick positioning.

[0021] In this embodiment, a fixture for clamping the side of a camshaft bearing cover is used. First, the upper side and drilling are performed. The iron pins on the fixture's positioning surface are cleaned. The lower side of the bearing cover is used as the bottom positioning surface. Two pieces equipped with the first clamping device are placed simultaneously. The two positioning pins 7 and the positioning block 5 are adjusted to ensure that the bottom surfaces of the two products are flat. The second hydraulic cylinder 32 is activated first, extending to press the bearing cover tightly against the positioning pins 7. The first hydraulic cylinder 23 then presses the product downwards to press it tightly against the pad block 10. Then, processing can begin. After the upper side and drilling surface are completed, the fixture is released. At this point, the product has already had its through-holes (positioning reference holes) machined. The bearing cover with one side machined is then mounted on the second clamping device. The machined through-holes on the bearing cover are inserted into the positioning pins 8 on the positioning plate 9. The bearing cover is then pressed together using the longitudinal clamping components 2 on both sides to facilitate machining of the lower side 12 of the bearing cover. Two new blanks are then mounted on the first clamping device. Thus, after one revolution of the CNC milling machine, both the upper and lower sides of the product, along with the drilled holes, will be machined simultaneously. This allows for four-station clamping, fully utilizing the machine tool's machining space, saving operator clamping time, and significantly improving machining efficiency. This utility model provides a tooling for clamping the machined side of a camshaft bearing cover. While increasing the number of clamps, it enables rapid clamping and machining, effectively improving machining efficiency. It is characterized by its ease of use and strong practicality.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A tooling for clamping the machined side of a camshaft bearing cover, characterized in that, The device includes a base plate (1), one end of which is provided with two first clamping devices for clamping the upper side (11) of the bearing cover, and the other end of which is provided with two second clamping devices for clamping the lower side (12) of the bearing cover. The first clamping device includes a longitudinal clamping assembly (2), a first mold base (4), a positioning block (5) and two transverse clamping assemblies (3). The longitudinal clamping assembly (2) and the transverse clamping assembly (3) are arranged opposite to each other on the base plate (1). The first mold base (4) is installed on the base plate (1) on one side of the longitudinal clamping assembly (2). The positioning block (5) is installed on the first mold base (4). The second clamping device includes a positioning plate (9) and multiple longitudinal clamping assemblies (2). The positioning plate (9) is fixed on the base plate (1), and the longitudinal clamping assemblies (2) are arranged on both sides of the positioning plate (9).

2. The tooling for clamping the machined side of a camshaft bearing cover according to claim 1, characterized in that, The positioning plate (9) is provided with a positioning pin (8) at one end that is adapted to the bearing cover through the nail hole.

3. The tooling for clamping the machined side of a camshaft bearing cover according to claim 1, characterized in that, The longitudinal clamping assembly (2) includes a positioning base (24), a connecting rod (22), a pressure block (21), and a first hydraulic cylinder (23). The positioning base (24) is mounted on the base plate (1). The two sides of the pressure block (21) are rotatably connected to one end of the connecting rod (22), and the other end of the connecting rod (22) is rotatably connected to the positioning base (24). The first hydraulic cylinder (23) is mounted on the positioning base (24), and the output end of the first hydraulic cylinder (23) is connected to one end of the pressure block (21).

4. The tooling for clamping the machined side of a camshaft bearing cover according to claim 1, characterized in that, The transverse clamping assembly (3) includes a cylinder mounting base (31) and a second cylinder (32). The cylinder mounting base (31) is mounted on the base plate (1), and the second cylinder (32) is horizontally mounted on the cylinder mounting base (31).

5. The tooling for clamping the machined side of a camshaft bearing cover according to claim 1, characterized in that, The first mold base (4) is provided with a pad (10) on one side.

6. The tooling for clamping the machined side of a camshaft bearing cover according to claim 1, characterized in that, The longitudinal clamping assembly (2) has a support base (6) on the other side of the base plate (1), and the support base (6) has a positioning pin (7).

7. The tooling for clamping the machined side of a camshaft bearing cover according to claim 1, characterized in that, The positioning block (5) is in the shape of a "Z" and the bottom of the positioning block (5) is provided with a bayonet.

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