Open type three-jaw power chuck

Abstract

The utility model relates to the technical field of workpiece clamping jigs, and discloses an open type three-jaw power chuck which comprises a hydraulic cylinder and further comprises a base plate arranged above the hydraulic cylinder. The main body mechanism is arranged above the base plate and used for clamping and fixing a workpiece, the main body mechanism comprises a first clamping jaw located at the top of the base plate, a second clamping jaw facilitating clamping and fixing of the workpiece is arranged on one side of the first clamping jaw, and a third clamping jaw is arranged on one side of the first clamping jaw; by arranging the main body mechanism, a workpiece can be conveniently clamped and positioned during machining, meanwhile, the positioning precision is high, the precision requirement of most parts can be met, one-to-one driving is achieved in a reliable connecting mode, the service life is long, stable performance can be kept in the long-time using process, and the machining precision is high. And it is ensured that the workpiece is effectively positioned when clamped, the safety performance of equipment is improved, and meanwhile the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping fixtures, in particular to an open-type three-jaw power chuck. Background Art

[0002] A power chuck is a clamping tool driven by an electric motor that can be used to clamp and move various objects. It is often used in industrial production and laboratory operations where small parts need to be frequently replaced or operated. An open three-jaw power chuck is a machine tool accessory that is usually used to process larger workpieces or parts that require high precision.

[0003] At present, when the workpiece fixture needs to shake during operation, a clamping chuck is needed to position and clamp it. However, the traditional chuck has a simple design structure during use, and the clamping force is insufficient or too strong, which may lead to reduced processing accuracy. If the chuck falls off during milling machine processing, the tool may scratch the workpiece surface or damage the equipment, reducing the work efficiency of workpiece processing. Utility Model Content

[0004] The purpose of the utility model is to provide an open three-jaw power chuck to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an open three-jaw power chuck, including a hydraulic cylinder, and also including:

[0006] A chassis disposed above the hydraulic cylinder;

[0007] A main mechanism is arranged above the chassis for clamping and fixing the workpiece, and the main mechanism includes a first clamping claw located on the top of the chassis, a second clamping claw is arranged on one side of the first clamping claw for conveniently clamping and fixing the workpiece, and a third clamping claw is arranged on one side of the first clamping claw.

[0008] Preferably, the piston rod of the hydraulic cylinder is fixedly connected to a first tooth plate, and a first gear is meshed on the top of the first tooth plate.

[0009] Preferably, the inner wall of the first gear is fixedly connected to two groups of rotating rods with transmission function, and one end of the two groups of rotating rods is fixedly connected to the first bevel gear.

[0010] Preferably, a second bevel gear is meshed on the outer side of the first bevel gear, a connecting rod is fixedly connected to the inner wall of the second bevel gear, and one end of the connecting rod is fixedly connected to the second gear.

[0011] Preferably, the bottom of the first clamping claw is slidably connected to a mounting block, the second clamping claw is slidably connected to a fixing block, and the bottoms of the mounting block and the fixing block are both fixedly connected to the top of the chassis.

[0012] Preferably, a connecting block is fixedly connected to the top of the chassis, and a limiting block is fixedly connected to the top of the chassis.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model discloses the main body mechanism is provided, can conveniently clamp and position the workpiece when processing, and has high positioning accuracy, can meet the precision requirements of most parts, and has reliable connection mode one-to-one drive, long service life, can maintain stable performance during long-term use, ensures effective positioning when clamping the workpiece, improves the safety performance of the equipment, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an open three-jaw power chuck provided by the utility model;

[0016] Figure 2 A schematic diagram of the first tooth plate and the rotating rod structure provided by the utility model;

[0017] Figure 3 A schematic diagram of the structure of the first bevel gear and the second bevel gear provided by the utility model;

[0018] Figure 4 This is a schematic diagram of the connecting rod and the second gear structure provided by the utility model.

[0019] In the figure: 1. hydraulic cylinder; 2. chassis; 3. main body; 31. first clamping claw; 32. second clamping claw; 33. third clamping claw; 4. first tooth plate; 5. first gear; 6. rotating rod; 7. first bevel gear; 8. second bevel gear; 9. connecting rod; 10. second gear; 11. mounting block; 12. fixing block; 13. connecting block; 14. limiting block. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4As shown, an open three-jaw power chuck includes a hydraulic cylinder 1. By setting the hydraulic cylinder 1, the first tooth plate 4 can be easily moved. A chassis 2 is arranged above the hydraulic cylinder 1. By setting the chassis 2, the equipment can be easily supported; a main mechanism 3 is arranged above the chassis 2 for clamping and fixing a workpiece. The main mechanism 3 includes a first clamping jaw 31 located at the top of the chassis 2. By setting the first clamping jaw 31, the workpiece can be clamped easily. A second clamping jaw 32 is arranged on one side of the first clamping jaw 31 for clamping and fixing the workpiece. By setting the second clamping jaw 32, the workpiece can be clamped easily. A third clamping jaw 33 is arranged on one side of the first clamping jaw 31. By setting the third clamping jaw 33, the workpiece can be clamped easily.

[0022] refer to Figure 2 , Figure 3 and Figure 4 As shown, the piston rod of the hydraulic cylinder 1 is fixedly connected with a first toothed plate 4. By setting the first toothed plate 4, the first gear 5 can be easily rotated. The top of the first toothed plate 4 is meshed with the first gear 5. By setting the first gear 5, the rotating rod 6 can be easily rotated; the inner wall of the first gear 5 is fixedly connected with two groups of rotating rods 6 with transmission function. By setting the rotating rod 6, the first bevel gear 7 can be easily rotated. One end of the two groups of rotating rods 6 is fixedly connected with the first bevel gear 7. By setting the first bevel gear 7, the second bevel gear 8 can be easily rotated; the outer side of the first bevel gear 7 is meshed with a second bevel gear 8. By setting the second bevel gear 8, the connecting rod 9 can be easily rotated. The inner wall of the second bevel gear 8 is fixedly connected with a connecting rod 9. By setting the connecting rod 9, the second gear 10 can be easily rotated. One end of the connecting rod 9 is fixedly connected with the second gear 10. By setting the second gear 10, the first claw 31 can be easily moved.

[0023] refer to Figure 1 As shown, the bottom of the first claw 31 is slidably connected to the mounting block 11, and by setting the mounting block 11, the first claw 31 can be supported to slide, and the second claw 32 is slidably connected to the fixing block 12, and by setting the fixing block 12, the second claw 32 can be slidably supported, and the bottoms of the mounting block 11 and the fixing block 12 are both fixedly connected to the top of the chassis 2; the top of the chassis 2 is fixedly connected to the connecting block 13, and by setting the connecting block 13, the rotating rod 6 can be limited, and the top of the chassis 2 is fixedly connected to the limiting block 14, and by setting the limiting block 14, the rotating rod 6 on one side can be limited.

[0024] Working principle: when the workpiece needs to be clamped, the hydraulic cylinder 1 is operated, and the operation of the hydraulic cylinder 1 drives the first tooth plate 4 to move, the movement of the first tooth plate 4 drives the first gear 5 to rotate, the rotation of the first gear 5 drives the rotating rod 6 to rotate, the rotation of the rotating rod 6 drives the first bevel gear 7 to rotate, the rotation of the first bevel gear 7 drives the second bevel gear 8 to rotate, the rotation of the second bevel gear 8 drives the connecting rod 9 to rotate, the rotation of the connecting rod 9 drives the second gear 10 to rotate, the rotation of the second gear 10 drives the first claw 31 to move, and similarly the second claw 32 also moves, and at the same time the rotation of the first gear 5 drives the third claw 33 to move.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An open-type three-jaw power chuck, comprising a hydraulic cylinder (1), characterized in that: Also includes: A chassis (2) disposed above the hydraulic cylinder (1); A main body mechanism (3) is arranged above a chassis (2) and is used for clamping and fixing a workpiece. The main body mechanism (3) comprises a first clamping claw (31) located at the top of the chassis (2), a second clamping claw (32) is arranged on one side of the first clamping claw (31) for conveniently clamping and fixing the workpiece, and a third clamping claw (33) is arranged on one side of the first clamping claw (31).

2. An open three-jaw power chuck according to claim 1, characterized in that: The piston rod of the hydraulic cylinder (1) is fixedly connected to a first toothed plate (4), and a first gear (5) is meshed at the top of the first toothed plate (4).

3. An open three-jaw power chuck according to claim 2, characterized in that: The inner wall of the first gear (5) is fixedly connected to two groups of rotating rods (6) having a transmission function, and one end of the two groups of rotating rods (6) is fixedly connected to a first bevel gear (7).

4. An open three-jaw power chuck according to claim 3, characterized in that: A second bevel gear (8) is meshed with the outer side of the first bevel gear (7), a connecting rod (9) is fixedly connected to the inner wall of the second bevel gear (8), and one end of the connecting rod (9) is fixedly connected to the second gear (10).

5. The open three-jaw power chuck according to claim 1, characterized in that: The bottom of the first clamping claw (31) is slidably connected to a mounting block (11), and the second clamping claw (32) is slidably connected to a fixing block (12), and the bottoms of the mounting block (11) and the fixing block (12) are both fixedly connected to the top of the chassis (2).

6. An open three-jaw power chuck according to claim 1, characterized in that: The top of the chassis (2) is fixedly connected to a connection block (13), and the top of the chassis (2) is fixedly connected to a limit block (14).

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