Crankshaft finish turning center two-claw tool

Abstract

The utility model discloses a crankshaft finish turning center two-claw tool, which belongs to the technical field of crankshaft finish turning center two-claw tools and comprises a flange seat and a clamping mechanism, a main body is mounted on the flange seat, an assembly space is arranged in the main body, a center is arranged in the middle of the assembly space, one end of the center is inserted into the assembly space, and the other end of the center is inserted into the clamping mechanism. The other end of the tip is exposed out of the surface of the body, one end of the clamping mechanism extends into the assembling space to be movably arranged, a guide block is installed on the assembling space, a kidney-shaped hole and a moving space are formed in the guide block, the extending end of the clamping mechanism and one end of the connecting block are connected to the kidney-shaped hole, and the extending end of the clamping mechanism moves along the track of the kidney-shaped hole. The other end of the clamping mechanism extends out of the surface of the main body and moves towards the center to form a clamping opening, the other end of the connecting block is connected with the connecting sleeve, a piston hole is formed in the flange seat, the connecting sleeve is arranged on the piston hole in a lifting mode, the crankshaft finish turning center two-claw tool is easy to operate, and machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaft processing tooling, and more specifically relates to a crankshaft finishing center two-claw tooling. Background Art

[0002] At present, in the actual processing of crankshafts, the clamping jaws of the clamping tool clamp one end of the crankshaft, the holding fixture supports the center hole of the clamping end of the crankshaft to perform rough turning of the unclamped end of the crankshaft, and then the clamping jaws clamp the other end of the crankshaft to perform rough turning of the unclamped end of the crankshaft, and finally the holding fixture supports the center hole of one end of the crankshaft, and the other holding fixture supports the center hole of the other end of the crankshaft to perform fine turning of the crankshaft. This processing method requires at least two processing tools, which is very inconvenient to operate and has low processing efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a crankshaft fine turning center two-jaw tooling, which is simple to operate and improves the processing efficiency.

[0004] According to the first aspect of the utility model, a two-jaw tooling for fine turning of a crankshaft center is provided, including a flange seat and a clamping mechanism, a main body is installed on the flange seat, an assembly space is provided inside the main body, a center for supporting the shaft hole is provided in the middle of the assembly space, one end of the center is inserted into the assembly space, and the other end of the center is exposed from the surface of the top of the main body, one end of the clamping mechanism is extended into the assembly space and is movably arranged, a guide block is installed on the assembly space, a waist hole and an activity space for the extended end of the clamping mechanism to move are provided on the guide block, the extended end of the clamping mechanism is connected to the waist hole with one end of the connecting block, the extended end of the clamping mechanism moves along the trajectory of the waist hole, the other end of the clamping mechanism extends out of the surface of the top of the main body and moves toward the center to form a clamping port, the other end of the connecting block is connected to the connecting sleeve, a piston hole is provided on the flange seat, and the connecting sleeve can be raised and lowered on the piston hole.

[0005] In a specific embodiment of the utility model, the clamping mechanism comprises two clamping claws and two guide rods, and one end of the clamping claw is connected to one end of the guide rod through a bolt.

[0006] In a specific embodiment of the utility model, a clamping portion is extended outwardly from the other end of the claw, and the other end of the guide rod is rotatably connected to the connecting block through a pin shaft.

[0007] In a specific embodiment of the utility model, a pressure cover is fixedly installed at the connection between the clamping mechanism and the surface of the top of the main body.

[0008] In a specific embodiment of the present invention, a dustproof seal is installed at the contact point between the gland and the clamping mechanism.

[0009] In a specific embodiment of the utility model, a joint bearing is installed at the connection between the gland and the main body, and the extending end of the clamping mechanism passes through the joint bearing and is connected to the connecting block.

[0010] In a specific embodiment of the present invention, the top of the tip is a conical structure, and the top of the tip supports the crankshaft.

[0011] In a specific embodiment of the utility model, one end of the connecting sleeve away from the connecting block is connected to an oil cylinder.

[0012] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0013] This crankshaft finishing turning center two-jaw tooling clamps the crankshaft through a clamping mechanism, and the center of the center presses against the center hole of the crankshaft, and then rough turning is performed. After the rough turning is completed, the clamping mechanism releases the crankshaft and continues to finish turning the crankshaft. This crankshaft finishing turning center two-jaw tooling is simple to operate and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 It is a structural schematic diagram of a two-claw tooling for finishing a crankshaft center in one embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional view of a crankshaft finishing center two-jaw tooling clamping state in one embodiment of the utility model;

[0017] Figure 3 It is a cross-sectional view of a crankshaft finishing center two-jaw tooling in a loosened state in one embodiment of the utility model. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0023] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0024] Reference Figures 1 to 3 As shown, a two-jaw tooling for fine turning of a crankshaft center is provided, including a flange seat 3 and a clamping mechanism 20, a main body 4 is installed on the flange seat 3, an assembly space is provided inside the main body 4, a center 2 for supporting the shaft hole is provided in the middle of the assembly space, one end of the center 2 is inserted into the assembly space, and the other end of the center 2 is exposed from the surface of the top of the main body 4, one end of the clamping mechanism 20 is extended into the assembly space and is movably arranged, a guide block 5 is installed on the assembly space, a waist hole 51 and an activity space 52 for the extended end of the clamping mechanism 20 to move are provided on the guide block 5, the extended end of the clamping mechanism 20 is connected to one end of the connecting block 9 in the waist hole 51, the extended end of the clamping mechanism 20 moves along the trajectory of the waist hole 51, the other end of the clamping mechanism 20 extends out of the surface of the top of the main body 4 and moves toward the center 2 to form a clamping port, the other end of the connecting block 9 is connected to the connecting sleeve 10, a piston hole is provided on the flange seat 3, and the connecting sleeve 10 can be raised and lowered and arranged on the piston hole.

[0025] In this embodiment, the clamping assembly 20 is composed of two claws 16 and two guide rods 6. One end of the claw 16 is connected to one end of the guide rod 6 by a bolt. The two claws 16 are respectively arranged on both sides of the crankshaft 1 for clamping. Figure 2The connecting sleeve 10 is connected to an oil cylinder. When the oil cylinder is filled with oil, the connecting sleeve 10 moves up on the piston hole, driving the connecting block 9 to rotate. One end of the connecting block 9 is connected to the connecting sleeve 10, and the other end is connected to the guide rod 6, so that the guide rod 6 moves along the trajectory of the waist hole 51 in the activity space 52, pushing the guide rod 6 to move, so that the two claws 16 are close to each other to form a clamping mouth to clamp the crankshaft 1, and the top 2 supports the center hole of the crankshaft 1 to perform rough turning of the crankshaft 1, so as to avoid shaking and displacement of the crankshaft 1 during processing, causing errors.

[0026] like Figure 3 When the oil cylinder returns oil, the connecting sleeve 10 moves downward, and the connecting block 9 also rotates, so that the guide rod 6 moves downward along the trajectory of the waist hole 51, so that the two claws 16 release the crankshaft 1, and the top 2 still supports the center hole of the crankshaft, and then the crankshaft 1 is finely turned.

[0027] Furthermore, a clamping portion 161 is extended outward from the other end of the claw 16 to facilitate clamping the crankshaft 1. The other end of the guide rod 6 is rotatably connected to the connecting block 9 via a pin 11. If a bolt connection is used, the guide rod 6 may become stuck and not smooth during rotation, or even unable to rotate. Therefore, a pin connection is preferred to play a role in positioning, transmitting torque and transmitting power.

[0028] In one embodiment of the utility model, a pressure cover 8 is fixedly installed at the surface connection between the clamping mechanism 20 and the top of the main body 4. The pressure cover 8 covers the internal structure of the tooling and prevents the parts inside the main body 4 from falling out. It can also be disassembled for easy addition of lubricating oil.

[0029] Preferably, in order to prevent dust and the like from entering the interior of the main body 4 and causing pollution, a dustproof seal 13 is installed at the contact between the pressure cover 8 and the clamping mechanism 20; in order to facilitate the swing of the clamping mechanism 20 and achieve flexible movement, a joint bearing 7 is installed at the connection between the pressure cover 8 and the main body 4, and the extended end of the clamping mechanism 20 passes through the joint bearing 7 and is connected to the connecting block 9. Under the action of the joint bearing 7, the clamping mechanism 20 is more convenient to control the swing, reduce the friction between parts, and improve the service life.

[0030] In one embodiment of the utility model, the top of the tip 2 is a conical structure, and the tip 2 with a conical top supports the crankshaft 1 for rough turning and fine turning to prevent the crankshaft 1 from deflecting.

[0031] The utility model clamps the crankshaft 1 through the clamping mechanism 20, and the center 2 supports the center hole of the crankshaft 1, and then performs rough turning. After the rough turning is completed, the clamping mechanism 20 releases the crankshaft 1, and continues to fine turn the crankshaft 1. The crankshaft fine turning center two-claw tooling is simple to operate and improves the processing efficiency.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A two-jaw tooling for finishing a crankshaft center, comprising a flange seat (3) and a clamping mechanism (20), characterized in that: A main body (4) is mounted on the flange seat (3), an assembly space is provided inside the main body (4), a top point (2) for supporting the shaft hole is provided in the middle of the assembly space, one end of the top point (2) is inserted into the assembly space, and the other end of the top point (2) is exposed from the surface of the top of the main body (4), one end of the clamping mechanism (20) is extended into the assembly space and is movably arranged, a guide block (5) is mounted on the assembly space, and a waist hole (51) and a movably arranged end of the clamping mechanism (20) are provided on the guide block (5). The movable space (52) is formed so as to form a movable space (52), the insertion end of the clamping mechanism (20) is connected to one end of the connecting block (9) in the waist hole (51), the insertion end of the clamping mechanism (20) moves along the trajectory of the waist hole (51), the other end of the clamping mechanism (20) extends out of the surface of the top of the main body (4) and moves toward the top (2) to form a clamping opening, the other end of the connecting block (9) is connected to the connecting sleeve (10), the flange seat (3) is provided with a piston hole, and the connecting sleeve (10) can be raised and lowered and arranged on the piston hole.

2. The two-jaw tooling for finishing the crankshaft center according to claim 1 is characterized in that: The clamping mechanism (20) comprises two clamping claws (16) and two guide rods (6), and one end of the clamping claw (16) is connected to one end of the guide rod (6) via a bolt.

3. The two-jaw tooling for finishing the crankshaft center according to claim 2 is characterized in that: The other end of the claw (16) is provided with a clamping portion (161) extending outwardly, and the other end of the guide rod (6) is rotatably connected to the connecting block (9) via a pin shaft (11).

4. The two-jaw tooling for finishing the crankshaft center according to claim 1, characterized in that: A pressure cover (8) is fixedly mounted at the connection point between the clamping mechanism (20) and the surface of the top of the main body (4).

5. The two-jaw tooling for finishing the crankshaft center according to claim 4, characterized in that: A dustproof seal (13) is installed at the contact point between the pressure cover (8) and the clamping mechanism (20).

6. The two-jaw tooling for finishing the crankshaft center according to claim 4, characterized in that: A joint bearing (7) is installed at the connection between the pressure cover (8) and the main body (4), and the extending end of the clamping mechanism (20) passes through the joint bearing (7) and is connected to the connecting block (9).

7. The two-jaw tooling for finishing the crankshaft center according to claim 1, characterized in that: The top of the tip (2) is a conical structure, and the top of the tip (2) supports the crankshaft (1).

8. The two-jaw tooling for finishing the crankshaft center according to claim 1, characterized in that: One end of the connecting sleeve (10) away from the connecting block (9) is connected to an oil cylinder.

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