Crankshaft machining clamp

Abstract

The crankshaft machining clamp comprises a bottom plate, a sliding groove is formed in the upper side of the bottom plate, sliding plates are connected to the inner sides of the left end and the right end of the sliding groove in a sliding mode, moving plates are fixedly connected to the upper sides of the sliding plates on the left side and the right side, and clamping units are arranged on the outer sides of the moving plates. And each clamping unit comprises a fixing barrel, the fixing barrels are fixedly connected to the outer sides of the moving plates, moving rods are arranged on the outer sides of the upper ends and the lower ends of the fixing barrels correspondingly, and one ends of the moving rods are fixedly connected with side plates. Through the arrangement of the sliding plates, the sliding grooves, the moving plates and the two-way screws, the moving plates on the left side and the right side can be conveniently controlled to get close to each other, through the fixing cylinders, the moving rods, the clamping plates, the limiting plates and the control plate, when the clamping plates limit the crankshaft, the clamping plates on the upper side and the lower side limit the crankshaft again, the clamping effect is improved, and later disassembly is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing, in particular to a crankshaft processing fixture. Background Art

[0002] The crankshaft plays a vital role in the engine. It not only bears the force from the connecting rod, but also converts these forces into torque, which is output through the crankshaft and drives the work of other accessories on the engine. When processing the crankshaft, a fixture is needed to limit the crankshaft to facilitate subsequent grinding and cutting.

[0003] After searching, the application number is "202320185150.9", which provides a crankshaft processing fixture, which places the crankshaft body in the middle of the two side clamps on the top of the base, and pulls the pull rod on one side of the clamp to make the pull rod drive the first limit clamp to lift up. At this time, the rotating motor is started by the controller to drive the rotating motor to drive the bidirectional shaft threaded rod to rotate. At the same time, the threaded blocks on both sides of the outside of the bidirectional shaft threaded rod can drive the clamp to move through the first connecting block, and make the clamp complete the clamping of both sides of the crankshaft body. At this time, loosen the pull rod, so that the first limit clamp and the second limit clamp can complete the limiting of the crankshaft body.

[0004] The crankshaft is limited by the clamps on both sides, and the crankshaft is limited by pulling the pull rods on the left and right sides. However, when this structure is used, when disassembling the crankshaft after processing, it is necessary to pull the pull rods on the left and right sides, and then control the clamps to separate from the crankshaft, which is troublesome to operate and increases the workload of the staff in disassembling the crankshaft. Utility Model Content

[0005] In order to overcome the disadvantage of the prior art that the crankshaft is inconvenient to disassemble after being clamped, one of the purposes of the utility model is to provide a crankshaft processing clamp.

[0006] One of the purposes of the utility model is achieved by the following technical solution: a crankshaft processing fixture, comprising a bottom plate: a slide groove is provided on the upper side of the bottom plate, slide plates are slidably connected to the inner sides of the left and right ends of the slide groove, and movable plates are fixedly connected to the upper sides of the slide plates on the left and right sides, a clamping unit is provided on the outer side of the movable plate, and a bidirectional screw is rotatably connected to the inner side of the slide groove;

[0007] The cam is secured to the outside of the movable plate and is adapted to engage the cam to engage with the movable plate, wherein the cam is secured to the outside of the movable plate and is adapted to engage the cam to engage with the movable plate.

[0008] According to the crankshaft processing fixture, the moving rod is slidably connected to the fixed cylinder, which is convenient for controlling the movement of the limit plate.

[0009] According to the crankshaft processing fixture, opposite threads are arranged at both ends of the bidirectional screw, and the two ends of the bidirectional screw are respectively threadedly connected with the left and right slide plates, so as to facilitate the control of the left and right slide plates to move toward each other.

[0010] According to the crankshaft processing fixture, a motor is fixedly connected to the left side of the base plate, and the output end of the motor is fixedly connected to the left end of the bidirectional screw, so as to facilitate the control of the rotation of the bidirectional screw.

[0011] According to the crankshaft processing fixture, the limiting plate is arranged in an arc-shaped structure.

[0012] According to the crankshaft processing fixture, the control plates on the upper and lower sides are arranged in an oblique symmetrical structure.

[0013] Beneficial effects:

[0014] By providing a slide plate, a slide groove, a movable plate, and a bidirectional screw, it is easy to control the movable plates on the left and right sides to approach each other, and through the fixed cylinder, the movable rod, the clamping plate, the limit plate and the control plate, when the clamping plate limits the crankshaft, the clamping plates on the upper and lower sides limit the crankshaft again, thereby increasing the clamping effect and facilitating later disassembly.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is an overall three-dimensional structural diagram of a crankshaft processing fixture of the utility model;

[0018] Figure 2This is a three-dimensional structural diagram of a reinforcement unit in a crankshaft processing fixture of the utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of a crankshaft processing fixture of the utility model without a fixing cylinder in a reinforcement unit;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. Bottom plate; 2. Slide groove; 3. Slide plate; 4. Moving plate; 5. Bidirectional screw; 6. Motor; 7. Clamping unit; 701. Fixed cylinder; 702. Moving rod; 703. Side plate; 704. Spring; 705. Limit plate; 706. Rotating block 1; 707. Control board; 708. Rotating block 2; 709. Clamping plate; 710. Telescopic rod. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4 A crankshaft processing fixture comprises a base plate 1: a slide groove 2 is provided on the upper side of the base plate 1, and slide plates 3 are slidably connected to the inner sides of the left and right ends of the slide groove 2, and movable plates 4 are fixedly connected to the upper sides of the left and right slide plates 3, and a clamping unit 7 is provided on the outer side of the movable plate 4, and a bidirectional screw rod 5 is rotatably connected to the inner side of the slide groove 2, and opposite threads are provided at both ends of the bidirectional screw rod 5, and the two ends of the bidirectional screw rod 5 are respectively threadedly connected to the left and right slide plates 3, and a motor 6 is fixedly connected to the left side of the base plate 1, and the output end of the motor 6 is fixedly connected to the left end of the bidirectional screw rod 5. When in use, the motor 6 is started, and the motor 6 drives the bidirectional screw rod 5 to rotate, and the bidirectional screw rod 5 drives the left and right slide plates 3 to approach each other, and the slide plate 3 drives the movable plate 4 to move, so that the movable plate 4 drives the clamping unit 7 to clamp the crankshaft.

[0025] The clamping unit 7 includes a fixed cylinder 701, which is fixedly connected to the outer side of the movable plate 4. A movable rod 702 is arranged on the outer sides of the upper and lower ends of the fixed cylinder 701. One end of the movable rod 702 is fixedly connected to a side plate 703. A spring 704 is fixedly connected between the side plate 703 and the fixed cylinder 701. The other end of the movable rod 702 is located on the inner side of the fixed cylinder 701 and is fixedly connected to a limiting plate 705. The outer sides of the upper and lower limiting plates 705 are fixedly connected to a rotating block 1 706. The outer sides of the upper and lower rotating blocks 1 706 are rotatably connected to a control plate 707. A telescopic rod 710 is fixedly connected to the inner side of the fixed cylinder 701. A clamping plate 709 is fixedly connected to the outer sides of the upper and lower ends of the clamping plate 709. A rotating block 2 708 is rotatably connected to the control plate 707. The movable rod 702 is slidably connected to the fixed cylinder 701. The limiting plate 705 is arranged in an arc structure. The plate 707 is set as an inclined symmetrical structure. When in use, the moving plate 4 controls the movement of the fixed cylinder 701, and the fixed cylinder 701 drives the clamping plate 709 to move, so that the left and right clamping plates 709 limit the left and right ends of the crankshaft. During the clamping process of the clamping plate 709, the clamping plate 709 moves, and the clamping plate 709 drives the control plate 707 to rotate. The control plates 707 on the upper and lower sides rotate in opposite directions. The control plate 707 drives the limiting plates 705 to move, so that the limiting plates 705 on the upper and lower sides are close to each other, so that after the clamping plates 709 limit the crankshaft, the limiting plates 705 on the upper and lower sides clamp the outer sides of the crankshaft to increase the clamping effect of the crankshaft. When the crankshaft needs to be disassembled, the control motor 6 is controlled to reverse, so that the moving plate 4 is separated from the crankshaft, the fixed cylinder 701 is separated from the crankshaft, and the clamping plate 709 is separated from the crankshaft. Under the action of the control plate 707 and the moving rod 702, it is easy to control the limiting plates 705 to separate from the crankshaft, and the disassembly of the crankshaft is simple.

[0026] Working principle: When in use, the staff first places the crankshaft between the left and right fixed cylinders 701, and then starts the motor 6 to drive the bidirectional screw 5 to rotate. Under the action of the slide plate 3, the movable plate 4 controls the clamping plate 709 to clamp the crankshaft, and through the control plate 707 and the moving rod 702, the limit plates 705 on the upper and lower sides are used to limit the crankshaft, thereby increasing the effect of clamping the crankshaft. When the crankshaft is disassembled, the motor 6 is controlled to reverse, and the clamping plate 709 is separated from the crankshaft. Due to the elastic force of the spring 704, the limit plate 705 is separated from the crankshaft, which facilitates and quickly removes the crankshaft.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A crankshaft machining fixture, characterized in that: The bottom plate (1) comprises a slide groove (2) on the upper side of the bottom plate (1), the inner sides of the left and right ends of the slide groove (2) are slidably connected with slide plates (3), the upper sides of the left and right slide plates (3) are fixedly connected with movable plates (4), the outer side of the movable plate (4) is provided with a clamping unit (7), and the inner side of the slide groove (2) is rotatably connected with a bidirectional screw (5); The clamping unit (7) comprises a fixed cylinder (701), the fixed cylinder (701) is fixedly connected to the outside of the movable plate (4), the outer sides of the upper and lower ends of the fixed cylinder (701) are both provided with movable rods (702), one end of the movable rod (702) is fixedly connected to a side plate (703), a spring (704) is fixedly connected between the side plate (703) and the fixed cylinder (701), and the other end of the movable rod (702) is located on the inner side of the fixed cylinder (701) and is fixedly connected to a limiting plate (705). ), the outer sides of the upper and lower limit plates (705) are fixedly connected with rotating blocks 1 (706), the outer sides of the upper and lower rotating blocks 1 (706) are rotatably connected with control plates (707), the inner side of the fixed cylinder (701) is fixedly connected with a telescopic rod (710), the outer end of the telescopic rod (710) is fixedly connected with a clamping plate (709), the outer sides of the upper and lower ends of the clamping plate (709) are fixedly connected with rotating blocks 2 (708), and the rotating block 2 (708) is rotatably connected to the control plate (707).

2. A crankshaft machining fixture according to claim 1, characterized in that: The moving rod (702) is slidably connected to the fixed cylinder (701).

3. A crankshaft machining fixture according to claim 1, characterized in that: The two ends of the bidirectional screw (5) are provided with opposite threads, and the two ends of the bidirectional screw (5) are respectively threadedly connected to the left and right side slides (3).

4. A crankshaft machining fixture according to claim 1, characterized in that: A motor (6) is fixedly connected to the left side of the base plate (1), and the output end of the motor (6) is fixedly connected to the left end of the bidirectional screw (5).

5. The crankshaft machining fixture according to claim 1, characterized in that: The limiting plate (705) is arranged in an arc-shaped structure.

6. A crankshaft machining fixture according to claim 1, characterized in that: The control panels (707) on the upper and lower sides are arranged in an obliquely symmetrical structure.

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