CN111390586A

CN111390586A - Workpiece clamping device of numerical control machine tool

Info

Publication number: CN111390586A
Application number: CN202010250628.2A
Authority: CN
Inventors: 王海龙; 伍志健
Original assignee: Jiangsu Guiyu Aviation Industry Co ltd
Current assignee: Jiangsu Guiyu Aviation Industry Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-07-10

Abstract

The invention discloses a workpiece clamping device of a numerical control machine tool, which comprises a base, wherein a driving gear is arranged in the middle of the inside of the base through a driving wheel shaft, driven gears are respectively meshed with two sides of the driving gear, a power plate is arranged above the driven gears, a rack is arranged on the lower surface of the power plate and is meshed with the driven gears, a guide block extends out of the middle part of the upper surface of the power plate, guide grooves are respectively arranged on two sides of the upper surface of the base, the upper end surface of the guide block penetrates through the upper surface of the guide grooves, and a clamping block is arranged above one end of each guide block, which is close to each other, in the clamping process of the invention, the two gears drive the power plate to move, the power plate can drive the clamping blocks to mutually close to or separate from each other, and the rotating speeds of the two driven gears are the same, therefore, the workpiece can be clamped in the middle to avoid machining errors and ensure machining precision.

Description

Workpiece clamping device of numerical control machine tool

Technical Field

The invention relates to the technical field of numerical control machines, in particular to a workpiece clamping device of a numerical control machine.

Background

The numerical control machine tool is an electromechanical integrated product integrating multiple technologies such as machinery, electricity, hydraulic pressure, pneumatics, microelectronics and information, has the advantages of high precision, high efficiency, high automation, high flexibility and the like, and is used for processing parts with complex shapes by using the numerical control machine tool, thereby not only improving the labor productivity and the processing quality, but also shortening the production preparation period and reducing the requirements on the technical proficiency of workers. The workpiece clamping device is mainly used for clamping workpieces of a numerical control machine tool, and the workpieces can be fixed on a plurality of machines through clamping after being clamped in the clamping device. The workpiece clamping device is a clamping part of a numerical control machine tool machining production line and is widely applied to automobile, plastic, heavy industry and steel machining production lines.

Workpieces in a numerical control machine tool generally need to be clamped and then processed, otherwise, the positions of the workpieces are unstable and processing work is difficult to perform, the existing clamping device generally performs unilateral clamping through a screw rod, the workpieces are difficult to clamp in the middle of the clamping mode, and processing errors can be caused.

Disclosure of Invention

The invention aims to provide a workpiece clamping device of a numerical control machine tool, which aims to solve the problem that the existing clamping device generally carries out unilateral clamping through a screw rod, so that the workpiece is difficult to clamp in the middle of the clamping mode, and machining errors are caused.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a workpiece clamping device of digit control machine tool, includes the base, install the driving gear through the driving wheel axle in the middle of the inside of base, the both sides of driving gear all mesh there is driven gear, driven gear's top is provided with the power board, the rack has been seted up to the lower surface of power board, and rack and driven gear meshing, the guide block is extended at the upper surface middle part of power board, the guide way has all been seted up to the upper surface both sides of base, the upper end surface of guide block passes the upper surface of guide way, and the tight piece of clamp is installed to the one end top that two guide blocks are close to each other.

Preferably, a motor is arranged in the base, and the motor drives the driving wheel shaft to rotate after being decelerated by the reduction gearbox.

Preferably, a driven wheel shaft is installed in the middle of the driven gear, and two ends of the driven wheel shaft are rotatably connected to the inner wall of the base through bearings.

Preferably, one side of the driven gear, which is far away from the driving gear, is provided with an anti-drop gear, the middle part of the anti-drop gear is provided with an anti-drop wheel shaft at a position corresponding to the driven wheel shaft horizontally, and two ends of the anti-drop wheel shaft are rotatably installed on the inner wall of the base through bearings.

Preferably, a belt connecting mechanism is in transmission connection between the anti-falling wheel shaft and the driven wheel shaft, and the belt connecting mechanism comprises a belt wheel and a belt.

Preferably, the number of the belt wheels is two, the belt wheels are arranged on the anti-falling wheel shaft and the driven wheel shaft, and the two belt wheels are in transmission connection through a belt.

Preferably, the clamping block comprises a clamping plate and foam, the clamping plate is fixed to the guide block, and the foam is fixed to one side, far away from the guide block, of the clamping plate.

Compared with the prior art, the invention has the beneficial effects that: the clamping of the invention is that the two gears drive the power plate to move, the power plate can drive the clamping blocks to approach or separate from each other, and the rotating speeds of the two driven gears are the same, so that the moving distances of the clamping blocks in the same time are the same, and a workpiece can be clamped in the middle, thereby avoiding processing errors and ensuring the processing precision.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an internal mechanical view of the base of the present invention;

FIG. 3 is a bottom schematic view of the power plate of the present invention;

fig. 4 is a schematic structural diagram of the base of the present invention.

In the figure: 1. a base; 2. a guide block; 3. a clamping block; 31. a splint; 32. soaking cotton; 4. a guide groove; 5. a power plate; 6. an anti-drop gear; 61. an anti-drop wheel axle; 7. a belt connecting mechanism; 8. a driven gear; 81. a driven axle; 9. a motor; 10. a reduction gearbox; 11. a driving wheel shaft; 12. a driving gear; 13. a rack.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 and 2, in an embodiment of the present invention, a workpiece clamping device of a numerical control machine tool includes a base 1, a driving gear 12 is installed in the middle inside the base 1 through a driving gear shaft 11, a motor 9 is installed inside the base 1, the motor 9 is decelerated by a reduction box 10 and then drives the driving gear shaft 11 to rotate, the motor 9 is decelerated by the reduction box 10 and then drives the driving gear shaft 11 to rotate, and the driving gear shaft 11 rotates and can drive the driving gear 12 to rotate;

as shown in fig. 1 and fig. 2, the driven gears 8 are engaged with both sides of the driving gear 12, the driven wheel shaft 81 is installed in the middle of the driven gear 8, and both ends of the driven wheel shaft 81 are rotatably connected to the inner wall of the base 1 through bearings, the driving gear 12 can drive the driven gears 8 to rotate when rotating, and the rotation directions of the two driven gears 8 are opposite;

continuing to refer to fig. 1, 2, 3 and 4, a power plate 5 is arranged above a driven gear 8, a rack 13 is arranged on the lower surface of the power plate 5, the rack 13 is meshed with the driven gear 8, a guide block 2 extends out of the middle of the upper surface of the power plate 5, guide grooves 4 are formed in both sides of the upper surface of a base 1, the upper end surface of the guide block 2 penetrates through the upper surface of the guide groove 4, the power plate 5 can be driven to horizontally move through the rack 13 when the driven gear 8 rotates, and the guide block 2 can move left and right in the guide grooves 4 when the power plate 5 horizontally moves so as to guide the movement of the power plate 5;

with reference to fig. 1 and 2, a clamping block 3 is installed above one end of each of two guide blocks 2 close to each other, the clamping block 3 comprises a clamping plate 31 and foam 32, the clamping plate 31 is fixed to the guide blocks 2, the foam 32 is fixed to one side of the clamping plate 31 far away from the guide blocks 2, when the power plate 5 drives the guide blocks 2 to move left and right, the clamping plate 31 can be driven to move left and right, and the clamping plate 31 can move left and right to clamp or loosen a workpiece;

as shown in fig. 2, the side of the driven gear 8 away from the driving gear 12 is provided with an anti-drop gear 6, the middle part of the anti-drop gear 6 is provided with an anti-drop axle 61 at a position corresponding to the driven axle 81, and two ends of the anti-drop axle 61 are rotatably mounted on the inner wall of the base 1 through bearings, so that the anti-drop gear 6 can be prevented from dropping off the driven gear 8 when the power plates 5 are away from each other;

continuing to refer to fig. 2, the belt connecting mechanism 7 is connected between the anti-drop wheel axle 61 and the driven wheel axle 81 in a transmission manner, the belt connecting mechanism 7 includes two belt wheels and a belt, the two belt wheels are installed on the anti-drop wheel axle 61 and the driven wheel axle 81, the two belt wheels are connected in a transmission manner through the belt, the driven wheel axle 81 can drive the anti-drop wheel axle 61 to rotate through the belt connecting mechanism 7, the anti-drop gear 6 can rotate in the same direction as the driven gear 8, and the anti-drop gear 6 can prevent the power plate 5 from being separated from the driven gear 8.

The working principle and the using process of the invention are as follows: when the device is used, a workpiece is arranged between two clamping blocks 3, then the motor 9 is driven to drive the driving wheel shaft 11 to rotate after being decelerated by the reduction box 10 through the driving motor 9, the driving wheel shaft 11 can drive the driving gear 12 to rotate, the driving gear 12 can drive the driven gear 8 to rotate when rotating, the rotating directions of the two driven gears 8 are opposite, the driven gear 8 can drive the power plate 5 to horizontally move through the rack 13 when rotating, the two power plates 5 can be close to each other or far away from each other, when the power plate 5 horizontally moves, the guide block 2 can move left and right in the guide groove 4 to guide the movement of the power plate 5, when the power plate 5 drives the guide block 2 to move left and right, the clamping plate 31 can be driven to move left and right, the clamping plate 31 can clamp or loosen the workpiece when moving left and right, because the rotating speeds of the two driven gears, the displacement of the power plates 5 is equal at the same time, so that the clamping block 3 can clamp the workpiece in the central part between the two power plates 5;

the driven wheel shaft 81 can drive the anti-drop wheel shaft 61 to rotate through the belt connecting mechanism 7, and then the anti-drop gear 6 can rotate in the same direction as the driven gear 8, and then the anti-drop gear 6 can prevent the power plate 5 from being disengaged from the driven gear 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a workpiece clamping device of digit control machine tool, includes base (1), its characterized in that: the improved clamp is characterized in that a driving gear (12) is mounted in the middle of the interior of the base (1) through a driving wheel shaft (11), driven gears (8) are meshed with the two sides of the driving gear (12), a power plate (5) is arranged above the driven gears (8), a rack (13) is arranged on the lower surface of the power plate (5), the rack (13) is meshed with the driven gears (8), guide blocks (2) extend out of the middle of the upper surface of the power plate (5), guide grooves (4) are formed in the two sides of the upper surface of the base (1), the upper end surface of each guide block (2) penetrates through the upper surface of each guide groove (4), and a clamping block (3) is mounted above one end, close to each other, of the two guide blocks (2).

2. The workpiece clamping device of the numerical control machine tool according to claim 1, wherein: a motor (9) is arranged inside the base (1), and the motor (9) drives the driving wheel shaft (11) to rotate after being decelerated by a reduction gearbox (10).

3. The workpiece clamping device of the numerical control machine tool according to claim 1, wherein: the middle part of the driven gear (8) is provided with a driven wheel shaft (81), and the two ends of the driven wheel shaft (81) are rotatably connected to the inner wall of the base (1) through bearings.

4. The workpiece clamping device of the numerical control machine tool according to claim 3, wherein: one side of the driven gear (8) far away from the driving gear (12) is provided with an anti-falling gear (6), an anti-falling wheel shaft (61) is installed at the position, corresponding to the level of the driven wheel shaft (81), of the middle of the anti-falling gear (6), and two ends of the anti-falling wheel shaft (61) are installed on the inner wall of the base (1) in a rotating mode through bearings.

5. The workpiece clamping device of the numerical control machine tool according to claim 4, wherein: the anti-falling wheel shaft (61) and the driven wheel shaft (81) are in transmission connection with a belt connecting mechanism (7), and the belt connecting mechanism (7) comprises a belt wheel and a belt.

6. The workpiece clamping device of the numerical control machine tool as set forth in claim 5, wherein: the two belt wheels are arranged on the anti-falling wheel shaft (61) and the driven wheel shaft (81), and the two belt wheels are in transmission connection through a belt.

7. The workpiece clamping device of the numerical control machine tool according to claim 1, wherein: the clamping block (3) comprises a clamping plate (31) and foam (32), the clamping plate (31) is fixed with the guide block (2), and the foam (32) is fixed on one side, far away from the guide block (2), of the clamping plate (31).