Column type chuck with pairwise linked clamping jaws

Abstract

The column type chuck comprises a chuck body, a mounting groove is formed in the middle of the chuck body, a cavity is formed in the chuck body, three sets of rotary knobs are rotated, the three sets of rotary knobs drive rotary rods fixedly connected with the rotary knobs to rotate respectively, the rotary rods drive a driving gear to drive the rotary knobs to rotate, and the driving gear drives the rotary knobs to rotate. A driving gear drives a first driven gear and a second driven gear which are vertically meshed with the driving gear to rotate, so that a first threaded rod and a second threaded rod rotate, a sliding groove can limit a first moving plate, and a limiting block can limit a second moving plate; and the first moving plate and the second moving plate drive the first clamping plate and the second clamping plate fixedly connected with the first moving plate and the second moving plate to move correspondingly, then the outer walls of the two ends of the workpiece are clamped and fixed, the stability of the workpiece is improved, the workpiece is prevented from shaking during machining, and then the machining quality of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chucks, in particular to a column chuck with two-by-two linkage of jaws. Background Technique

[0002] A chuck is a mechanical device used on a machine tool to clamp a workpiece. It is a machine tool accessory that clamps and positions the workpiece by the radial movement of movable jaws evenly distributed on the chuck body. Generally, a chuck consists of three parts: a chuck body, movable jaws, and a jaw drive mechanism.

[0003] For example, a synchronous disk clamping mechanism of an inclined column chuck (publication number: CN216463120U), this device includes a disk body, a sliding member, a driving member, a clamping member, and an elastic member. The disk body has a sliding cavity and several inclined cavities connected to the sliding cavity. There are several sliding members, which are respectively slidably arranged in several inclined cavities. The inclined cavities have an inclined angle to make several sliding members approach each other. The driving member is slidably arranged in the sliding cavity. There are several clamping members, which are respectively hinged on several sliding members. One end of the elastic member is arranged at one end of the clamping member, and the other end is hinged at one end of the sliding member. Through the above technical solution, the problem of easy damage to the workpiece when clamping the workpiece in the prior art is solved.

[0004] However, this device still has the following defects:

[0005] When this device is in use, it can only clamp and fix the outer wall of one end of the workpiece, which makes the workpiece may shake during the processing of the workpiece, thereby affecting the processing quality of the workpiece. Therefore, we need to propose a column chuck with two-by-two linkage of jaws. Content of the Utility Model

[0006] The purpose of the utility model is to provide a column chuck with two-by-two linkage of jaws, to avoid the shaking of the workpiece during processing, and thus improve the processing quality of the workpiece, so as to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution:

[0008] A column chuck with two-by-two linkage of jaws, including a chuck. An installation groove is opened at the center of the chuck. A cavity is opened inside the chuck. Three rotating rods are rotatably installed in the cavity in a circular array. Active gears are fixedly sleeved on the outer walls of the three rotating rods. The upper and lower sides of the three active gears are meshed with a first driven gear and a second driven gear respectively. First threaded rods are fixedly inserted inside the three first driven gears. First clamping mechanisms are arranged on the outer walls of the three first threaded rods. Second threaded rods are inserted inside the three second driven gears. Second clamping mechanisms are arranged on the outer walls of the three second threaded rods.

[0009] Preferably, one end of each of the three rotating rods penetrates through the chuck and is fixedly connected to a knob, and anti-slip tooth grooves are provided on the outer walls of the three knobs.

[0010] Preferably, the three first clamping mechanisms include three first moving plates, which are respectively threadedly installed on the outer walls of the three first threaded rods. The tops of the three first moving plates all penetrate through the chuck and are located above the chuck. A first clamping plate is fixedly connected to one side of each of the three first moving plates, and a first rubber pad is bonded to one side of each of the three first clamping plates.

[0011] Preferably, three sliding grooves are communicated and opened at the top of the cavity where the chuck is located, and the three first clamping plates are respectively slidably installed inside the three sliding grooves.

[0012] Preferably, the three second clamping mechanisms include three second moving plates, which are respectively threadedly installed on the outer walls of the three second threaded rods. A second clamping plate is fixedly connected to one side of each of the three second moving plates, and a second rubber pad is connected by rotation to one side of each of the three second clamping plates.

[0013] Preferably, three relief grooves are communicated and opened on the inner wall of the cavity where the chuck is located, and the three second clamping plates are respectively slidably installed inside the three relief grooves.

[0014] Preferably, three limiting grooves are opened at the inner bottom of the chuck, and limiting blocks are slidably installed inside the three limiting grooves. The tops of the three limiting blocks are respectively fixedly connected to the three second moving plates.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By rotating the three knobs of the present utility model, the three knobs respectively drive the rotating rods fixedly connected thereto to rotate. The rotating rods drive the driving gears to drive, and the first driven gear and the second driven gear meshed with it up and down are driven to rotate, so that the first threaded rod and the second threaded rod rotate. The sliding groove can limit the first moving plate, and the limiting block can limit the second moving plate, so that the first moving plate and the second moving plate respectively drive the first clamping plate and the second clamping plate fixedly connected thereto to move, thereby clamping and fixing the outer walls of both ends of the workpiece, which is beneficial to improving the stability of the workpiece, avoiding the workpiece from shaking during processing, and further improving the processing quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic longitudinal sectional structural diagram of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model with the top cut away.

[0020] In the figure: 1. chuck; 2. mounting slot; 3. cavity; 4. rotating rod; 5. driving gear; 6. first driven gear; 7. second driven gear; 8. first threaded rod; 9. second threaded rod; 10. knob; 11. anti-slip tooth groove; 12. first movable plate; 13. first clamping plate; 14. first rubber pad; 15. second movable plate; 16. second clamping plate; 17. second rubber pad; 18. limit block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-3 , the utility model provides a technical solution:

[0023] A column chuck with two-two linked jaws, including a chuck 1, a mounting groove 2 is provided in the center of the chuck 1, the mounting groove 2 is used to place a workpiece, a cavity 3 is provided inside the chuck 1, and three groups of rotating rods 4 are rotatably installed in a circular array inside the cavity 3, and the outer walls of the three groups of rotating rods 4 are fixed with a driving gear 5, and the upper and lower sides of the three groups of driving gears 5 are meshed and connected with a first driven gear 6 and a second driven gear 7, and the interiors of the three groups of first driven gears 6 are fixedly plugged with a first threaded rod 8, and the outer walls of the three groups of first threaded rods 8 are provided with a first clamping mechanism, and the interiors of the three groups of second driven gears 7 are plugged with a The second threaded rod 9 and the outer walls of the three groups of second threaded rods 9 are all provided with a second clamping mechanism. The three groups of rotating rods 4 rotate to drive the three groups of driving gears 5 to rotate, and then drive the first driven gear 6 and the second driven gear 7 meshed with them to rotate, so that the first threaded rod 8 and the second threaded rod 9 rotate, and then the first movable plate 12 and the second movable plate 15 move, driving the first clamping plate 13 and the second clamping plate 16 to move, clamping and fixing the outer walls of both ends of the workpiece, which is beneficial to improve the stability of the workpiece, avoid shaking of the workpiece during processing, and thus improve the processing quality of the workpiece;

[0024] One end of each of the three sets of rotating rods 4 passes through the chuck 1 and is fixedly connected to a knob 10. The outer walls of the three sets of knobs 10 are provided with anti-slip grooves 11. By rotating the three sets of knobs 10, the three sets of knobs 10 can respectively drive the rotating rods 4 fixed thereto to rotate, and the provision of the anti-slip grooves 11 can increase the friction with the knobs 10;

[0025] The three groups of first clamping mechanisms include three groups of first movable plates 12, which are respectively threadedly installed on the outer walls of the three groups of first threaded rods 8, and the tops of the three groups of first movable plates 12 pass through the chuck 1 and are located above the chuck 1. One side of the three groups of first movable plates 12 is fixedly connected to the first clamping plate 13, and one side of the three groups of first clamping plates 13 is bonded with a first rubber pad 14. The chuck 1 is located at the top of the cavity 3 and is connected to the three groups of slide grooves. The three groups of first clamping plates 13 are slidably installed in the interior of the three groups of slide grooves. When the first threaded rod 8 rotates, the first movable plate 12 can be limited by the slide groove, thereby allowing the first movable plate 12 to move. The first movable plate 12 drives the first movable plate 12 fixedly connected to it to move, thereby fixing the outer wall of one end of the workpiece, and by providing the first rubber pad 14, damage to the workpiece can be avoided when clamping the workpiece;

[0026] The three groups of second clamping mechanisms include three groups of second movable plates 15, which are respectively threadedly mounted on the outer walls of the three groups of second threaded rods 9, and one side of the three groups of second movable plates 15 is fixedly connected to a second clamping plate 16, and one side of the three groups of second clamping plates 16 is switched to a second rubber pad 17. The chuck 1 is located on the inner wall of the cavity 3 and is connected to three groups of give way grooves. The three groups of second clamping plates 16 are respectively slidably mounted inside the three groups of give way grooves. The second threaded rod 9 is rotated to move the second movable plate 15. When moving, the second movable plate 15 will gradually penetrate the give way groove and fix the outer wall of the other end of the workpiece. The second rubber pad 17 can avoid damage to the workpiece when clamping the workpiece.

[0027] Three groups of limit grooves are provided on the inner bottom of the chuck 1, and limit blocks 18 are slidably installed inside the three groups of limit grooves. The tops of the three groups of limit blocks 18 are fixedly connected to the three groups of second movable plates 15 respectively. Through the cooperation of the limit grooves and the limit blocks 18, the second movable plate 15 can be limited, so that the second movable plate 15 can move when the second threaded rod 9 rotates.

[0028] Working principle: When the utility model is in use, the workpiece is inserted into the installation groove 2. By rotating the three groups of knobs 10, the three groups of knobs 10 respectively drive the rotating rods 4 fixedly connected thereto to rotate. The rotating rods 4 drive the driving gears 5, and through the driving gears 5, the first driven gears 6 and the second driven gears 7 meshing with the driving gears 5 up and down are driven to rotate, so that the first threaded rod 8 and the second threaded rod 9 rotate. The chute can limit the first moving plate 12, and the limiting block 18 can limit the second moving plate 15, so that the first moving plate 12 and the second moving plate 15 respectively drive the first clamping plate 13 and the second clamping plate 16 fixedly connected thereto to move, thereby clamping and fixing the outer walls of both ends of the workpiece, which is beneficial to improving the stability of the workpiece, avoiding the workpiece from shaking during processing, and thus improving the processing quality of the workpiece.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A column chuck with two-by-two linkage of jaws, comprising a chuck (1), characterized in that: An installation groove (2) is provided at the center of the chuck (1). A cavity (3) is provided inside the chuck (1). Three rotating rods (4) are rotatably installed in the cavity (3) in a circumferential array. Active gears (5) are fixedly sleeved on the outer walls of the three rotating rods (4). A first driven gear (6) and a second driven gear (7) are meshed and connected to the upper and lower sides of the three active gears (5). First threaded rods (8) are fixedly inserted into the interiors of the three first driven gears (6). First clamping mechanisms are arranged on the outer walls of the three first threaded rods (8). Second threaded rods (9) are inserted into the interiors of the three second driven gears (7). Second clamping mechanisms are arranged on the outer walls of the three second threaded rods (9).

2. The column chuck with two-by-two linkage of jaws according to claim 1, characterized in that: One ends of the three rotating rods (4) all penetrate through the chuck (1) and are fixedly connected to knobs (10). Anti-slip tooth grooves (11) are arranged on the outer walls of the three knobs (10).

3. The column chuck with two-by-two linkage of jaws according to claim 1, characterized in that: The three first clamping mechanisms include three first moving plates (12). The three first moving plates (12) are respectively threadedly installed on the outer walls of the three first threaded rods (8). The tops of the three first moving plates (12) all penetrate through the chuck (1) and are located above the chuck (1). A first clamping plate (13) is fixedly connected to one side of each of the three first moving plates (12). A first rubber pad (14) is bonded to one side of each of the three first clamping plates (13).

4. A column chuck with two-by-two linkage of jaws, characterized in that: Three sliding grooves are communicated and opened at the top of the chuck (1) where the cavity (3) is located. The three first clamping plates (13) are respectively slidably installed in the three sliding grooves.

5. A column chuck with two-by-two linkage of jaws, characterized in that: The three second clamping mechanisms include three second moving plates (15). The three second moving plates (15) are respectively threadedly installed on the outer walls of the three second threaded rods (9). A second clamping plate (16) is fixedly connected to one side of each of the three second moving plates (15). A second rubber pad (17) is rotatably connected to one side of each of the three second clamping plates (16).

6. The column chuck with two-by-two linkage of jaws according to claim 5, characterized in that: Three relief grooves are communicated and opened on the inner wall of the chuck (1) where the cavity (3) is located. The three second clamping plates (16) are respectively slidably installed in the three relief grooves.

7. The column chuck with two-by-two linkage of jaws according to claim 6, wherein: Three limiting grooves are opened at the inner bottom of the chuck (1). Limiting blocks (18) are slidably installed in the three limiting grooves. The tops of the three limiting blocks (18) are respectively fixedly connected to the three second moving plates (15).

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