CN219113488U - Clamping and positioning device for crankshaft machining - Google Patents

Abstract

The utility model provides a clamping and positioning device for crankshaft machining, which relates to the field of crankshaft machining equipment and comprises a machining table, wherein a fixed plate and a screw rod assembly are arranged on the machining table; compared with the prior art, the device can rotate the crankshaft while rapidly fixing and clamping the crankshaft, so that various processing flows can be performed on different processing surfaces of the crankshaft, the operation is not limited, and the clamping and positioning effects of the crankshaft are good.

Description

Clamping and positioning device for crankshaft machining

Technical Field

The utility model relates to the field of crankshaft machining equipment, in particular to a clamping and positioning device for crankshaft machining.

Background

The crankshaft is the most important component in an engine. The engine is used for bearing the force transmitted by the connecting rod, converting the force into torque, outputting the torque through the crankshaft and driving other accessories on the engine to work. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, periodically-changed gas inertia force and reciprocating inertia force, so that the crankshaft is subjected to bending torsion load. Therefore, the crankshaft is required to have enough strength and rigidity, and the journal surface needs to be wear-resistant, uniform in work and good in balance.

The crankshaft is required to be fixed before machining, and the existing positioning equipment cannot be used for quickly installing and fixing the crankshaft.

Publication number CN215588941U, which proposes a rapid positioning jig for crankshaft machining, the structure includes a base plate (1) and a pressing unit (6); bottom plate (1): the middle part of the upper surface of the sliding table is provided with the sliding table (2), the middle part of the sliding table (2) is provided with the rubber block (8), the middle parts of the front side and the rear side of the sliding table (2) are respectively provided with the sliding groove (4), and the left end and the right end of the inner side of the sliding groove (4) are respectively and slidably connected with the sliding blocks (7); a pressing unit (6): the novel crank shaft clamping device comprises a connecting plate (61), second sliding rods (62), electric telescopic rods (63) and an upper crank shaft clamping block (64), wherein the two electric telescopic rods (63) are symmetrically arranged at the top of a sliding block (7) left and right respectively, the connecting plate (61) is fixedly arranged at the telescopic ends of the electric telescopic rods (63) respectively, the second sliding rods (62) are fixedly arranged at the front end and the rear end of the bottom surface of the connecting plate (61) respectively, the other ends of the second sliding rods (62) respectively penetrate through holes in the top of the sliding block (7) and are fixedly connected with the upper crank shaft clamping block (64), and a jacking unit (5) is arranged under the upper crank shaft clamping block (64); wherein: the intelligent electric power supply comprises a base plate (1), and is characterized by further comprising a singlechip (3), wherein the singlechip (3) is arranged at the right end of the upper surface of the base plate (1), the output end of the singlechip (3) is electrically connected with the input end of an electric telescopic rod (63), and the input end of the singlechip (3) is electrically connected with the output end of an external power supply; the device is tight fixed effectual in clamp, can install fixedly fast to the bent axle, but inconvenient processing to different regions of bent axle when subsequent processing punches, for example when punching the lower surface of bent axle processing face down this moment, because there is the existence of tight unit of top, so operating space is limited.

Disclosure of Invention

The utility model aims to solve the problems in the background art, and further provides a clamping and positioning device for crankshaft machining.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a clamping and positioning device for crankshaft machining, includes the processing platform, is provided with fixed plate and lead screw subassembly on the processing platform, is provided with the motor on the fixed plate, and the motor is connected with clamping assembly, is provided with the movable plate on the lead screw subassembly, is provided with the tight subassembly in top on the movable plate.

Compared with the prior art, the device can rotate the crankshaft while rapidly fixing and clamping the crankshaft, so that various processing flows can be performed on different processing surfaces of the crankshaft, the operation is not limited, and the clamping and positioning effects of the crankshaft are good.

Further, the clamping assembly comprises a clamping disc, a fixing frame, a clamping air cylinder and a clamping plate, the motor is connected with the clamping disc, a fixing groove and the fixing frame are formed in the clamping disc, the fixing frame is symmetrically arranged on the clamping disc, the clamping air cylinder is arranged on the fixing frame, and a contraction rod of the clamping air cylinder penetrates through the fixing groove to be connected with the clamping plate.

According to the scheme, one end of the crankshaft can be clamped and fixed by the clamping assembly, when the clamping assembly finishes clamping, the jacking assembly moves from the other end of the crankshaft to jack the crankshaft, and after the clamping positioning is finished, the crankshaft can be rotated to adjust the machining surface.

Further, the main body of the clamping plate is V-shaped.

The clamping plate in the scheme adopts a V-shaped design, so that the clamping and fixing effect on the crankshaft can be further improved.

Further, the tight subassembly in top includes mount pad and tight board in top, rotates on the movable plate and is connected with the mount pad, is provided with the tight board in top on the mount pad.

According to the scheme, the jacking component is matched with the clamping component to clamp and position the crankshaft from the two ends of the crankshaft, so that the efficient rotation of the subsequent crankshaft is guaranteed, and the machined surface is convenient to adjust.

Further, be provided with first locating rack and second locating rack on the processing platform, all be provided with the locating plate on first locating rack and the second locating rack, the below of fixed plate is connected with the lead screw subassembly that is provided with on the processing platform, and fixed plate and movable plate cooperate.

According to the scheme, the clamping and positioning efficiency of the crankshaft can be further improved by using the two positioning frames.

Further, the main body of the locating plate is V-shaped.

In the scheme, the positioning plate adopts a V-shaped design, so that a crankshaft can be placed quickly to finish positioning.

Compared with the prior art, the utility model has the beneficial effects that:

1. compared with the prior art, the device can drive the crankshaft to rotate by utilizing the clamping component to match with the jacking component when the crankshaft is rapidly and fixedly clamped, so that various processing flows can be carried out on different processing surfaces of the crankshaft, the operation is not limited, and the clamping and positioning effects of the crankshaft are good.

2. The device can make the two ends of the crankshaft positioned on the same straight line with the center of the fixed groove and the center of the jacking plate respectively after the crankshaft is positioned by arranging the two positioning frames, and the crankshaft can be positioned and supported at a certain height at the moment, so that the clamping and positioning efficiency of the crankshaft is further improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a clamp plate installation;

FIG. 3 is a schematic view of the installation of a first spacer and a second spacer;

reference numerals:

1. a processing table; 11. a fixing plate; 12. a lead screw assembly; 13. a movable plate; 21. a motor; 22. a mounting base; 23. a pressing plate; 3. clamping the disc; 301. a fixing groove; 31. a fixing frame; 32. a clamping cylinder; 33. a clamping plate; 4. a crankshaft; 51. a first positioning frame; 52. and the second positioning frame.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The utility model will be further described with reference to the accompanying drawings and examples:

as shown in fig. 1 to 3, a clamping and positioning device for machining a crankshaft 4 comprises a machining table 1, wherein a fixed plate 11 and a screw rod assembly 12 are arranged on the machining table 1, the screw rod assembly 12 belongs to the prior art, no improvement is made, the screw rod assembly 12 consists of a driving motor 21, a screw rod, a sliding rail, a sliding block and a connecting plate, the principle is that rotary motion is converted into linear motion, the driving motor 21 drives the screw rod to rotate and finally convert into directional reciprocating motion of the sliding block along the sliding rail, the motor 21 is arranged on the fixed plate 11, the motor 21 is connected with a clamping disc 3, a fixed groove 301 and a fixed frame 31 are arranged on the clamping disc 3, the crankshaft 4 is matched in the fixed groove 301, two fixed frames 31 are symmetrically arranged relative to the clamping disc 3, clamping cylinders 32 are symmetrically arranged on the fixed frame 31, shrinkage rods of the clamping cylinders 32 penetrate through the fixed groove 301 and are connected with clamping plates 33, the two clamping plates 33 are simultaneously in opposite or opposite directions, the main body of the clamping plates 33 are in a V shape, the screw rod assembly 12 is provided with a moving plate 13, the moving plate 13 is rotationally connected with a mounting seat 22 through a bearing, a top plate 23 is arranged on the mounting seat 22, and the top plate 23 is matched with the crankshaft 4.

The working flow of the utility model is as follows:

firstly, the crankshaft 4 is horizontally placed in the fixed groove 301, at the moment, one end of the crankshaft 4 is contacted with the bottom surface of the fixed groove 301, then, the two clamping cylinders 32 simultaneously work to drive the clamping plates 33 to clamp one end of the crankshaft 4 from the upper side and the lower side, the clamping plates 33 are good in clamping effect due to the adoption of the V-shaped design, then, the screw rod assembly 12 drives the movable plate 13 to approach the crankshaft 4 to the other end of the crankshaft 4 to tightly prop up the movable plate, at the moment, the motor 21 rotates to drive the crankshaft 4 to do rotary motion, and after the rotation angle of the crankshaft 4, punching processes can be conducted on different processing areas.

In order to further improve the clamping and positioning efficiency of the crankshaft 4, as shown in fig. 3, a first positioning frame 51 and a second positioning frame 52 are arranged on the processing table 1, positioning plates are arranged on the first positioning frame 51 and the second positioning frame 52, the main body of each positioning plate is in a V shape, a screw rod assembly 12 arranged on the processing table 1 is connected below the fixing plate 11, and the fixing plate 11 is matched with the moving plate 13; firstly, the crankshaft 4 is placed on the first positioning frame 51 and the second positioning frame 52, after the placement, two ends of the crankshaft 4 are respectively positioned on the same straight line with the center of the fixing groove 301 and the center of the jacking plate 23, at the moment, the crankshaft 4 can be placed and supported at a certain height, then the lead screw assembly 12 positioned at the left side of the processing table 1 drives the moving plate 13 to be close to the crankshaft 4 and contacts with one end of the crankshaft 4, then the lead screw assembly 12 positioned at the right side of the processing table 1 drives the fixing plate 11 to be close to the other end of the crankshaft 4, after the other end of the crankshaft 4 contacts with the fixing groove 301, the two clamping cylinders 32 clamp the crankshaft 4, at the moment, the two ends of the crankshaft 4 are limited and fixed, at the moment, the crankshaft 4 can start rotating, and the positioning plate does not influence the rotation adjustment of the crankshaft 4.

In other embodiments, a mechanical arm is fitted above the processing table 1, and the mechanical arm is not shown in the drawing, and the mechanical arm sequentially clamps and transports the crankshaft 4 from other areas to two positioning frames for clamping and positioning processing procedures.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a clamping and positioning device for crankshaft machining, which is characterized in that, including processing platform (1), be provided with fixed plate (11) and lead screw subassembly (12) on processing platform (1), be provided with motor (21) on fixed plate (11), motor (21) are connected with clamping assembly, are provided with movable plate (13) on lead screw subassembly (12), are provided with tight subassembly in top on movable plate (13).

2. The clamping and positioning device for crankshaft machining according to claim 1, wherein the clamping assembly comprises a clamping disc (3), a fixing frame (31), a clamping cylinder (32) and a clamping plate (33), the motor (21) is connected with the clamping disc (3), a fixing groove (301) and the fixing frame (31) are arranged on the clamping disc (3), the fixing frame (31) is symmetrically arranged on the clamping disc (3), the clamping cylinder (32) is arranged on the fixing frame (31), and a shrinkage rod of the clamping cylinder (32) penetrates through the fixing groove (301) to be connected with the clamping plate (33).

3. A clamping and positioning device for crankshaft machining according to claim 2, characterized in that the body of the clamping plate (33) is V-shaped.

4. The clamping and positioning device for crankshaft machining according to claim 1, wherein the jacking assembly comprises a mounting seat (22) and a jacking plate (23), the mounting seat (22) is rotatably connected to the moving plate (13), and the jacking plate (23) is arranged on the mounting seat (22).

5. Clamping and positioning device for crankshaft machining according to claim 1, characterized in that the machining table (1) is provided with a first positioning frame (51) and a second positioning frame (52), positioning plates are arranged on the first positioning frame (51) and the second positioning frame (52), a screw rod assembly (12) arranged on the machining table (1) is connected below the fixing plate (11), and the fixing plate (11) is matched with the moving plate (13).

6. The clamping and positioning device for crankshaft machining of claim 5, wherein the body of the positioning plate is V-shaped.

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