Hydraulic clamping tool for main bearing cover

Abstract

The utility model belongs to the technical field of main bearing cap machining, and discloses a main bearing cap hydraulic clamping tool which comprises an operation table, a boss is arranged in the center of the upper surface of the operation table, first oil cylinders are arranged at the positions, close to the boss, of the two sides of the operation table respectively, and the output end of each first oil cylinder is connected with a first clamping arm. A boss is arranged on the operating table, a first positioning seat is arranged in the middle of the boss, second positioning seats are symmetrically arranged on the two sides of the first positioning seat, corner oil cylinders are arranged on the first positioning seat, the output ends of the corner oil cylinders are connected with second clamping arms, at least four first grooves are formed in the rear portion of the operating table, and a second oil cylinder is arranged in each first groove. The output end of the second oil cylinder is connected with a third clamping arm; the device is simple in structure, can stably clamp special-shaped parts such as a main bearing cover, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to main bearing cover processing technical field, concretely is a kind of main bearing cover hydraulic clamping tool. BACKGROUND

[0002] Main bearing cover is the core component of internal combustion engine and other mechanical equipment, mainly used to fix main bearing and limit its axial displacement, ensure the stability and precision of crankshaft in the process of running, main bearing cover needs to be fine milling during processing, and the existing main bearing cover clamping tool cannot be well clamped for different sizes and shapes of main bearing cover, and will cause the deviation of main bearing cover in hole milling process, affect processing precision and yield. SUMMARY

[0003] The utility model provides a kind of main bearing cover hydraulic clamping tool, the tool can realize the stable clamping of main bearing cover and other special-shaped parts, and it is convenient to use.

[0004] To solve the above technical problems, the utility model provides the following technical scheme:

[0005] A kind of main bearing cover hydraulic clamping tool, including operation table, the center of the upper surface of operation table is provided with boss, the position close to boss of both sides of operation table is provided with one first oil cylinder, the output end of each first oil cylinder is connected with first clamping arm, the middle position of boss is installed with first positioning seat, the both sides of first positioning seat are symmetrically installed with second positioning seat, first positioning seat is installed with corner oil cylinder, the output end of corner oil cylinder is connected with second clamping arm, the rear portion of operation table is provided with at least four first grooves, second oil cylinder is installed in each first groove, the output end of second oil cylinder is connected with third clamping arm.

[0006] The utility model further optimizes the above technical scheme as follows:

[0007] The center position of each second positioning seat is provided with second groove, sliding pin is inserted in second groove, and the other end of sliding pin is installed with positioning plate.

[0008] Further optimization: the end of each first clamping arm away from first oil cylinder is provided with first clamping block, and the lower part of both ends of second clamping arm is provided with second clamping block.

[0009] Further optimization: the position close to second positioning seat at the rear of operation table is provided with two mounting seats, and one mistake-proof pin is installed above each mounting seat.

[0010] Further optimization: oil line plate is installed below operation table.

[0011] Further optimization: An oil delivery assembly is also connected to one side of the control panel.

[0012] This utility model adopts the above-mentioned technical solution, which is ingenious in conception and reasonable in structure. By using two third clamping arms and a main bearing cover placement device, the horizontal positioning of the main bearing cover is achieved by the interaction of three forces. Then, the longitudinal positioning of the main bearing cover is achieved by the action of the first clamping arm and the second clamping arm. This can effectively clamp the main bearing cover, improve the accuracy of milling holes in the main bearing cover, and thus improve the product yield and economic benefits.

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 This is a structural schematic diagram from another perspective in an embodiment of the present utility model;

[0016] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0017] In the diagram: 1. Operating table; 101. First hydraulic cylinder; 102. First clamping arm; 103. First clamping block; 104. Mounting base; 105. Anti-misalignment pin; 2. Boss; 201. First positioning seat; 202. Second positioning seat; 203. Corner hydraulic cylinder; 204. Second clamping arm; 2041. Second clamping block; 205. Second groove; 206. Sliding pin; 207. Positioning plate; 3. First groove; 301. Second hydraulic cylinder; 302. Third clamping arm; 4. Oil circuit plate; 5. Main bearing cover; 6. Oil circuit delivery assembly. Detailed Implementation

[0018] like Figures 1-3 As shown: A hydraulic clamping fixture for a main bearing cap includes an operating table 1. A boss 2 is provided at the center of the upper surface of the operating table 1. A first hydraulic cylinder 101 is provided on both sides of the operating table 1 near the boss 2. The output end of each first hydraulic cylinder 101 is connected to a first clamping arm 102. A first positioning seat 201 is installed at the middle position of the boss 2. Second positioning seats 202 are symmetrically installed on both sides of the first positioning seat 201. An angle hydraulic cylinder 203 is installed on the first positioning seat 201. The output end of the angle hydraulic cylinder 203 is connected to a second clamping arm 204. At least four first grooves 3 are provided at the rear of the operating table 1. A second hydraulic cylinder 301 is installed in each first groove 3. The output end of the second hydraulic cylinder 301 is connected to a third clamping arm 302.

[0019] Each of the second positioning seats 202 has a second groove 205 at its center, a sliding pin 206 is inserted into the second groove 205, and a positioning plate 207 is installed at the other end of the sliding pin 206.

[0020] This design, through the positioning plate 207, can further improve the positioning effect of the bearing cover to be clamped, making it convenient to use.

[0021] In this embodiment, the angle cylinder 203 is used to press down and rotate the second clamping arm 204 for ease of use.

[0022] Each of the first clamping arms 102 is provided with a first clamping block 103 at one end away from the first oil cylinder 101, and the lower part of both ends of the second clamping arms 204 is provided with a second clamping block 2041.

[0023] In this embodiment, the first clamping block 103 and the second clamping block 2041 can be made of polymer elastic pads or metal elastic pads.

[0024] Two mounting bases 104 are provided at the rear of the operating table 1 near the second positioning base 202, and each mounting base 104 is equipped with an anti-misoperation pin 105.

[0025] This design allows for clamping and positioning using the anti-misalignment pin 105 and the third clamping arm 302.

[0026] An oil circuit board 4 is installed below the operating console 1.

[0027] The main bearing cover 5 is installed on the positioning plate 207.

[0028] One side of the control panel 1 is also connected to an oil delivery assembly 6.

[0029] Working principle: In use, first push the main bearing cover 5 onto the positioning plate 207 until the main bearing cover 5 abuts against the anti-misalignment pin 105. Then, start the second hydraulic cylinder 301. The second hydraulic cylinder 301 drives the third clamping arm 302 to move closer to the main bearing cover 5 and abut against it. At this time, the forces of the two third clamping arms 302 and the force pushing the main bearing cover 5 interact to complete the horizontal positioning of the main bearing cover 5. Then, start the first hydraulic cylinder 101 and the corner hydraulic cylinder 203. The output end of the first hydraulic cylinder 101 drives the first clamping arm 102 to rotate, and the output end of the corner hydraulic cylinder 203 drives the second clamping arm 204 to rotate, thus positioning the main bearing cover 5 vertically.

[0030] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A main bearing cap hydraulic clamping fixture, characterized by: The utility model provides an operating platform, including operating platform (1), the upper surface center of operating platform (1) is provided with boss (2), operating platform (1) both sides near boss (2) position are provided with a first oil cylinder (101), and the output of each first oil cylinder (101) is connected with first clamping arm (102), and the middle position of boss (2) is installed with first locating seat (201), and the both sides of first locating seat (201) are symmetrically installed with second locating seat (202), and first locating seat (201) is installed with corner oil cylinder (203), and the output of corner oil cylinder (203) is connected with second clamping arm (204), and the rear of operating platform (1) is provided with at least four first recess (3), and each first recess (3) is installed with second oil cylinder (301), and the output of second oil cylinder (301) is connected with third clamping arm (302).

2. The main bearing cap hydraulic clamping tool of claim 1, wherein: The center position of each second locating seat (202) is provided with second recess (205), and the second recess (205) is inserted with sliding pin (206), and the other end of sliding pin (206) is installed with locating plate (207).

3. The main bearing cap hydraulic clamping tool of claim 2, wherein: The end of each first clamping arm (102) away from first oil cylinder (101) is provided with first clamping block (103), and the lower part of the both ends of second clamping arm (204) is provided with second clamping block (2041).

4. The main bearing cap hydraulic clamping tool of claim 3, wherein: The rear of operating platform (1) near second locating seat (202) is provided with two mounting seat (104), and the upper of each mounting seat (104) is installed with one mistake-proof pin (105).

5. The main bearing cap hydraulic clamping fixture of claim 4, wherein: The lower of operating platform (1) is installed with oil circuit board (4).

6. The main bearing cap hydraulic clamping fixture of claim 5, wherein: One side of operating platform (1) is also connected with oil circuit conveying assembly (6).

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