High-flexibility connecting rod large and small head hole fine boring clamp

Abstract

The utility model relates to the technical field of clamps, and discloses a high-flexibility connecting rod large and small head hole fine boring clamp which comprises a welding body, the front side of the upper portion of the welding body is fixedly connected with a small head supporting and pressing module, the rear side of the upper portion of the welding body is fixedly connected with a large head supporting and pressing module, and an automatic core-pulling positioning assembly is arranged in the welding body. A clamp body assembly is arranged on the upper portion of the welding body, and the small head supporting and pressing module comprises a first integrated plate, a first auxiliary pressing assembly, a first production changing supporting block and a first production changing pressing plate. According to the fine boring clamp for the large and small head holes of the high-flexibility connecting rod, the first production changing supporting block, the first production changing pressing plate, the mounting shaft, the push-pull plate, the push-pull oil cylinder, the small-head expansion pin, the large-head expansion pin, the production changing adjusting mechanism, the scrap removing mechanism and other structures are matched, so that the fine boring clamp for the large and small head holes of the high-flexibility connecting rod can be compatible with machining of various products, and input cost is reduced; and meanwhile, automatic clamping, positioning and chip punching can meet the automatic production requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a high-flexibility connecting rod large and small head hole precision boring clamp. Background Art

[0002] The connecting rod is one of the main moving parts of the engine. Its stability and reliability are crucial to the overall quality of the engine. Therefore, special fixtures are required when processing the connecting rod to ensure processing accuracy and efficiency.

[0003] The high-flexibility connecting rod large and small hole fine boring fixture is used for the connecting rod large and small head hole fine boring process. It is installed on the corresponding machine tool workbench. After manual / automatic loading, the fixture automatically clamps and positions, identifies whether the workpiece is in place, and then the machine tool proceeds with processing. The positioning accuracy and clamping force meet production requirements.

[0004] Currently, connecting rod manufacturers produce many types of connecting rods. If one type corresponds to a set of fixtures, the cost will increase, and the automatic chip punching cannot meet the requirements of automated production. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-flexibility connecting rod large and small head hole precision boring fixture, aiming to improve the problem in the prior art that one type of fixture corresponds to a set of fixtures, which will increase the cost and cannot automatically punch chips to meet the requirements of automated production.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a high-flexibility connecting rod large and small head hole precision boring fixture, comprising a welding body, a small head support and clamping module is fixedly connected to the front side of the upper part of the welding body, a large head support and clamping module is fixedly connected to the rear side of the upper part of the welding body, an automatic core pulling and positioning component is arranged inside the welding body, and a clamping body component is arranged on the upper part of the welding body;

[0007] The small head supporting and clamping module includes a first integrated board, a first auxiliary clamping assembly, a first production change support block, and a first production change pressure plate. The first integrated board is fixedly connected to the front side of the upper part of the welding body, the first auxiliary clamping assembly is fixedly connected to the upper right rear side of the first integrated board, the first production change support block is fixedly connected to the upper right side of the first integrated board, and the first production change pressure plate is arranged on the right side of the first production change support block.

[0008] As a further description of the above technical solution:

[0009] The big head supporting and clamping module includes a second integrated plate, a second auxiliary clamping assembly, a second production change support block, and a second production change pressure plate. The second integrated plate is fixedly connected to the upper rear side of the welding body. The second auxiliary clamping assembly is fixedly connected to the upper and lower middle parts of the right side of the second integrated plate. The second production change support block is fixedly connected to the upper and lower parts of the right front side of the second integrated plate. A second production change pressure plate is arranged on the right side of the second production change support block.

[0010] As a further description of the above technical solution:

[0011] The automatic core pulling positioning assembly includes an installation shaft, a push-pull plate, a push-pull cylinder, a small-head expansion pin, and a large-head expansion pin. The installation shaft is arranged on the front and rear sides of the welding body, and push-pull plates are arranged on the outsides of the two installation shafts. The push-pull cylinder is fixedly connected to the left side of the push-pull plate. The small-head expansion pin is fixedly connected to the left side of the push-pull cylinder on the rear side, and the large-head expansion pin is fixedly connected to the left side of the push-pull cylinder on the front side.

[0012] As a further description of the above technical solution:

[0013] The clamping body assembly comprises a production change adjustment mechanism and a chip cleaning mechanism. The production change adjustment mechanism is fixedly connected around the upper part of the welding body, and the chip cleaning mechanism is fixedly connected to the upper right part of the welding body.

[0014] As a further description of the above technical solution:

[0015] The output end of the push-pull oil cylinder is fixedly connected to the push-pull plate.

[0016] As a further description of the above technical solution:

[0017] A mounting hole is provided in the middle of the welding body.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, through the coordination among the first production change support block, the first production change pressure plate, the mounting shaft, the push-pull plate, the push-pull cylinder, the small-head expansion pin, the large-head expansion pin, the production change adjustment mechanism and the chip cleaning mechanism, a highly flexible connecting rod large and small head hole precision boring fixture is achieved which is compatible with the processing of multiple varieties of products to reduce investment costs, and at the same time, automatic clamping positioning and chip punching can meet the requirements of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a high-flexibility precision boring fixture for connecting rod head holes proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of a clamp body assembly of a high-flexibility connecting rod size head hole precision boring fixture proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of a small head support and clamping module of a high-flexibility connecting rod large and small head hole precision boring fixture proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of a large head support and clamping module of a high-flexibility connecting rod large and small head hole precision boring fixture proposed by the utility model;

[0024] Figure 5 The utility model is a schematic diagram of an automatic core-pulling positioning component of a high-flexibility connecting rod large and small head hole precision boring fixture.

[0025] Legend:

[0026] 1. Welding body; 2. Small head supporting and clamping module; 201. First integrated board; 202. First auxiliary clamping assembly; 203. First production change support block; 204. First production change pressure plate; 3. Big head supporting and clamping module; 301. Second integrated board; 302. Second auxiliary clamping assembly; 303. Second production change support block; 304. Second production change pressure plate; 4. Automatic core pulling and positioning assembly; 401. Installation shaft; 402. Push-pull plate; 403. Push-pull cylinder; 404. Small head expansion pin; 405. Big head expansion pin; 5. Production change adjustment mechanism; 6. Chip cleaning mechanism. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-3 The utility model provides an embodiment: a high-flexibility connecting rod large and small head hole precision boring fixture, including a welding body 1, a small head support and clamping module 2 is fixedly connected to the front side of the upper part of the welding body 1, a large head support and clamping module 3 is fixedly connected to the rear side of the upper part of the welding body 1, an automatic core pulling and positioning component 4 is arranged inside the welding body 1, and a clamping body component is arranged on the upper part of the welding body 1;

[0029] The small head support and clamping module 2 includes a first integrated board 201, a first auxiliary clamping assembly 202, a first production change support block 203, and a first production change pressure plate 204. The first integrated board 201 is fixedly connected to the front side of the upper part of the welding body 1, the first auxiliary clamping assembly 202 is fixedly connected to the upper right rear side of the first integrated board 201, the first production change support block 203 is fixedly connected to the upper right side of the first integrated board 201, and the first production change pressure plate 204 is arranged on the right side of the first production change support block 203. The clamping body assembly includes a production change adjustment mechanism 5 and a chip cleaning mechanism 6. The production change adjustment mechanism 5 is fixedly connected to the upper part of the welding body 1. All around, the chip cleaning mechanism 6 is fixedly connected to the upper right side of the welding body 1, and a mounting hole is opened in the middle of the welding body 1. The big head supporting and clamping module 3 includes a second integrated board 301, a second auxiliary clamping assembly 302, a second production change support block 303, and a second production change pressure plate 304. The second integrated board 301 is fixedly connected to the upper rear side of the welding body 1, and the second auxiliary clamping assembly 302 is fixedly connected to the upper and lower parts of the middle right side of the second integrated board 301. The second integrated board 301 is fixedly connected to the upper and lower parts of the right front side, and a second production change support block 303 is fixedly connected to the upper and lower parts. A second production change pressure plate 304 is arranged on the right side of the second production change support block 303.

[0030] The welding body 1 is mainly used for installing various modules. After welding, it is subjected to aging treatment and fine processing, with good overall strength and high precision. The chip cleaning mechanism 6 is mainly used for cleaning the metal chips generated during the processing and the metal chips remaining on the positioning surface after processing to ensure the processing accuracy. The production change adjustment mechanism 5 is used to adjust the position of the big head supporting and clamping module 3 and the small head supporting and clamping module 2 during production change to realize production change. The small head supporting and clamping module 2 is mainly used for supporting and clamping the small head end of the connecting rod. This module cooperates with the production change adjustment mechanism 5 on the clamp body assembly. The small head supporting and clamping module 2 is moved through the production change adjustment mechanism 5. The connecting rod type change production can be completed by replacing the production change pressure plate and the production change support block of the corresponding product. The big head supporting and clamping module 3 is mainly used for supporting and clamping the big head end of the connecting rod. This module cooperates with the production change adjustment module on the clamp body assembly. The big head supporting and clamping module 3 is moved through the production change adjustment mechanism. The connecting rod type change production can be completed by replacing the production change pressure plate and the production change support block of the corresponding product.

[0031] The automatic core pulling and positioning assembly 4 includes an installation shaft 401, a push-pull plate 402, a push-pull cylinder 403, a small-head expansion pin 404, and a large-head expansion pin 405. The installation shaft 401 is arranged on the front and rear sides of the welding body 1, and push-pull plates 402 are arranged on the outside of the two installation shafts 401. The push-pull cylinder 403 is fixedly connected to the left side of the push-pull plate 402. The small-head expansion pin 404 is fixedly connected to the left side of the rear push-pull cylinder 403, and the large-head expansion pin 405 is fixedly connected to the left side of the front push-pull cylinder 403. The output end of the push-pull cylinder 403 is fixedly connected to the push-pull plate 402.

[0032] The automatic core-pulling positioning component 4 is mainly used for positioning the big and small heads of the connecting rod. The push-pull cylinder 403 drives the installation shaft 401 and the big head expansion pin 405 and the small head expansion pin 404 to move forward and backward through the push-pull plate 402, so as to avoid the processing tools. This component cooperates with the big head supporting and clamping module 3 and the small head supporting and clamping module 2. The big head supporting and clamping module 3 is moved through the production change adjustment mechanism, and the big head expansion pin 405 and the small head expansion pin 404 of the corresponding products are replaced to complete the connecting rod production change.

[0033] Working principle: When it is necessary to clamp the product, the product is loaded manually or automatically, and then positioned by the big head expansion pin 405 and the small head expansion pin 404. After being clamped by the clamping cylinder, an air inspection is carried out. After passing the air inspection, the big head expansion pin 405 and the small head expansion pin 404 are retracted, and then the automatic core pulling and positioning component 4 is retracted for processing. After the processing is completed, the product is unloaded, and the automatic core pulling and positioning component 4 is extended with the big head expansion pin 405 and the small head expansion pin 404 retracted to wait for the next processing. In this way, a high-flexibility connecting rod large and small head hole precision boring fixture is achieved, which is compatible with the processing of multiple varieties of products to reduce investment costs. At the same time, automatic clamping, positioning, and chip punching can meet the requirements of automated production.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-flexibility connecting rod head hole fine boring fixture, comprising a welding body (1), characterized in that: The upper front side of the welding body (1) is fixedly connected to a small head support and clamping module (2), the upper rear side of the welding body (1) is fixedly connected to a large head support and clamping module (3), an automatic core pulling and positioning component (4) is arranged inside the welding body (1), and a clamping body component is arranged on the upper part of the welding body (1); The small head supporting and clamping module (2) comprises a first integrated board (201), a first auxiliary clamping assembly (202), a first production change support block (203), and a first production change pressure plate (204); the first integrated board (201) is fixedly connected to the front side of the upper part of the welding body (1); the first auxiliary clamping assembly (202) is fixedly connected to the upper right rear side of the first integrated board (201); the first production change support block (203) is fixedly connected to the upper right side of the first integrated board (201); and the first production change pressure plate (204) is arranged on the right side of the first production change support block (203).

2. A high-flexibility connecting rod head hole precision boring fixture according to claim 1, characterized in that: The large head support and clamping module (3) comprises a second integrated board (301), a second auxiliary clamping assembly (302), a second production change support block (303), and a second production change pressure plate (304); the second integrated board (301) is fixedly connected to the upper rear side of the welding body (1); the second auxiliary clamping assembly (302) is fixedly connected to the upper and lower middle parts of the right side of the second integrated board (301); the second production change support block (303) is fixedly connected to the upper and lower parts of the right front side of the second integrated board (301); and the second production change pressure plate (304) is arranged on the right side of the second production change support block (303).

3. A high-flexibility connecting rod size head hole precision boring fixture according to claim 1, characterized in that: The automatic core pulling positioning component (4) comprises an installation shaft (401), a push-pull plate (402), a push-pull oil cylinder (403), a small-head expansion pin (404), and a large-head expansion pin (405). The installation shaft (401) is arranged on the front and rear sides of the welding body (1). Push-pull plates (402) are arranged on the outside of the two installation shafts (401). The push-pull oil cylinder (403) is fixedly connected to the left side of the push-pull plate (402). The small-head expansion pin (404) is fixedly connected to the left side of the push-pull oil cylinder (403) on the rear side, and the large-head expansion pin (405) is fixedly connected to the left side of the push-pull oil cylinder (403) on the front side.

4. A high-flexibility connecting rod head hole precision boring fixture according to claim 1, characterized in that: The clamping body assembly comprises a production change adjustment mechanism (5) and a chip cleaning mechanism (6), wherein the production change adjustment mechanism (5) is fixedly connected to the upper periphery of the welding body (1), and the chip cleaning mechanism (6) is fixedly connected to the upper right side of the welding body (1).

5. The high-flexibility connecting rod size head hole precision boring fixture according to claim 3, characterized in that: The output end of the push-pull oil cylinder (403) is fixedly connected to the push-pull plate (402).

6. A high-flexibility connecting rod head hole fine boring fixture according to claim 1, characterized in that: A mounting hole is provided in the middle of the welding body (1).

Images