CN215201202U

CN215201202U - Clamping device of numerical control grinding machine workpiece

Info

Publication number: CN215201202U
Application number: CN202120725980.7U
Authority: CN
Inventors: 杨阳; 杨振华; 陈晖�; 陆杰; 管家辉
Original assignee: Wuxi Shangji Automation Co Ltd
Current assignee: Hoyuan Green Energy Co.,Ltd.
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-17
Anticipated expiration: 2031-04-09

Abstract

The utility model discloses a clamping device for a workpiece of a numerically controlled grinder, which comprises a processing table, a motor, a clamping mechanism and a guide rail, wherein a support frame is arranged on an upper end face bolt of the processing table, the motor is arranged on a top bolt of the support frame, and an output shaft of the motor is sleeved with a connecting cylinder; the bottom of the connecting cylinder penetrates through one end of the movable shaft, a fixed box is fixed on the support frame outside the valve plate, and the top and the bottom of the fixed box are respectively connected with a clamping mechanism through a first hose and a second hose; and supporting columns are fixed at the bottoms of the 2 groups of clamping mechanisms which are symmetrically distributed about the processing table, and the bottoms of the supporting columns are connected with the upper end surface of the processing table through guide rails capable of improving the moving stability. This clamping device of numerically control grinder work piece can realize the centre gripping to different specification work pieces to can control the power degree among the clamping process, and then can play the protection to the work piece, can promote the high efficiency of numerically control grinder processing.

Description

Clamping device of numerical control grinding machine workpiece

Technical Field

The utility model relates to a numerically control grinder technical field specifically is a clamping device of numerically control grinder work piece.

Background

In the numerical control grinding machine machining process, a clamping device is needed to fix a workpiece to be machined, the accuracy of a machining position and the stability of the workpiece are guaranteed, for example, the material clamping mechanism of the vertical numerical control grinding machine with the publication number of CN210550435U comprises a base, a strip-shaped groove … is formed in the upper end of the base, a hydraulic oil cylinder is arranged on a clamping plate, when the workpiece is required to be ground on multiple surfaces, the hydraulic oil cylinder can be started, a rack in a mechanism groove drives a gear to rotate, a grinding cutter with different surface orientations of the clamped workpiece can be adjusted, the workpiece does not need to be clamped again after being detached from a clamp, and the use is convenient and rapid. However, the material clamping mechanism of the vertical numerically controlled grinder still has the following disadvantages in the actual use process:

1. the existing clamping device has a single clamping mode and can only clamp workpieces with the same specification, so that the existing clamping device has certain limitation in the machining process of a numerical control grinding machine;

2. and clamping device is not good to the control of dynamics in the clamping process, easily because too big work piece deformation's phenomenon that causes of dynamics, consequently lacks the structure to the work piece protection.

In order to solve the problems, innovative design is urgently needed on the basis of the original workpiece clamping device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping device of numerically control grinder work piece to solve above-mentioned background art and propose the work piece that only can carry out the centre gripping to the same specification, and clamping device is not good to the accuse at the control of centre gripping in-process to the dynamics, easily because the dynamics causes the problem that the work piece warp greatly.

In order to achieve the above object, the utility model provides a following technical scheme: a clamping device for a workpiece of a numerically controlled grinder comprises a processing table, a motor, a clamping mechanism and a guide rail, wherein a support frame is arranged on the upper end face of the processing table through a bolt, the motor is arranged on the top of the support frame through a bolt, a connecting cylinder is sleeved on an output shaft of the motor, and 2 connecting cylinders which are symmetrically distributed on the support frame are connected through a belt pulley mechanism;

one end of a movable shaft penetrates through the bottom of the connecting cylinder, the other end of the movable shaft is connected with a valve plate for guiding air to flow, a fixed box is fixed on a supporting frame on the outer side of the valve plate, and the top and the bottom of the fixed box are connected with a clamping mechanism through a first hose and a second hose respectively;

2 groups of the clamping mechanisms symmetrically distributed on the processing table are fixedly provided with support columns at the bottoms, the bottoms of the support columns are connected with the upper end face of the processing table through guide rails capable of improving the moving stability, and threaded rods for adjusting the spacing between the support columns are arranged in the 2 support columns in a penetrating mode.

Preferably, be provided with 2 the same, the opposite thread grooves of turning to of pitch on the loose axle, and loose axle and connecting cylinder are threaded connection to connecting cylinder and fixed box are the bearing connection, and the rotation of connecting cylinder can drive the valve plate through the loose axle and do elevating movement.

Preferably, clamping mechanism's lateral wall is fixed with the division board, and has seted up first gas storage chamber and second gas storage chamber in the clamping mechanism of division board both sides respectively to first gas storage chamber and second gas storage chamber communicate with the top and the bottom of fixed box through first hose and second hose respectively, can push first gas storage chamber and second gas storage intracavity through first hose and second hose respectively with the air in the fixed box when the valve plate goes up and down.

Preferably, the first air storage cavity and the second air storage cavity are communicated with two ends of the fixed cylinder through transmission pipes, the fixed cylinder is distributed at equal angles on the clamping mechanism, the clamping mechanism is of a circular structure, and workpieces of different specifications can be clamped in a mode of supporting from the inside or clamping from the outside.

Preferably, the inside activity of fixed section of thick bamboo is provided with the valve block that the guide movable rod removed, and the movable rod is fixed to be run through in the valve block to the both ends of movable rod run through clamping mechanism and extend to its outside, when the different ends in the fixed section of thick bamboo let in the air, can drive the valve block and move towards not equidirectional.

Preferably, the connecting blocks for improving the clamping resistance are pasted at the two ends of the movable rod, the movable rod is connected with the clamping mechanism in a sliding mode, the movable rod and the fixed cylinder are the same in number, and the movable rod is driven by the valve block to move so as to clamp a workpiece.

Compared with the prior art, the beneficial effects of the utility model are that: the clamping device for the workpiece of the numerically controlled grinder can clamp workpieces of different specifications, and can control the strength in the clamping process, so that the workpiece can be protected, and the processing efficiency of the numerically controlled grinder can be improved;

1. when the valve plate moves upwards, air can be transmitted into the first air storage cavity through the first hose and enters one end of the fixed cylinder close to the outer side of the clamping mechanism through the transmission pipe, and then the movable rods are driven to move towards the inner side of the clamping mechanism to clamp a workpiece;

2. when the valve plate moves downwards, air can be transmitted into the second air storage cavity through the second hose, suction is generated above the valve plate, air close to one end of the fixed cylinder outside the clamping mechanism is sucked out through the first hose and the transmission pipe, then the air enters the other end of the fixed cylinder inside the clamping mechanism through the transmission pipe, the movable rods are driven to move towards the outside of the clamping mechanism, a workpiece with a large specification is clamped through a mode of supporting from the inside, and protection on the workpiece can be achieved through arrangement of the connecting block.

Drawings

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

FIG. 2 is a schematic view of the front section structure of the fixing box of the present invention;

FIG. 3 is a schematic view of a front cross-sectional structure of the clamping mechanism of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

fig. 5 is a schematic cross-sectional view taken at a in fig. 4 according to the present invention.

In the figure: 1. a processing table; 2. a support frame; 3. an electric motor; 4. a connecting cylinder; 5. a belt pulley mechanism; 6. a movable shaft; 7. a valve plate; 8. a fixing box; 9. a first hose; 10. a second hose; 11. a clamping mechanism; 111. a partition plate; 112. a first gas storage chamber; 113. a second gas storage chamber; 114. a conveying pipe; 115. a fixed cylinder; 116. a valve block; 117. a movable rod; 118. connecting blocks; 12. a support pillar; 13. a threaded rod; 14. a guide rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a clamping device for a workpiece of a numerical control grinding machine comprises a processing table 1, a support frame 2, a motor 3, a connecting cylinder 4, a belt pulley mechanism 5, a movable shaft 6, a valve plate 7, a fixed box 8, a first hose 9, a second hose 10, a clamping mechanism 11, a partition plate 111, a first air storage cavity 112, a second air storage cavity 113, a transmission pipe 114, a fixed cylinder 115, a valve block 116, a movable rod 117, a connecting block 118, a support column 12, a threaded rod 13 and a guide rail 14, wherein the support frame 2 is arranged on the upper end face of the processing table 1 through a bolt, the motor 3 is arranged on the top of the support frame 2 through a bolt, the connecting cylinder 4 is sleeved on an output shaft of the motor 3, and 2 connecting cylinders 4 which are symmetrically distributed relative to the support frame 2 are connected through the belt pulley mechanism 5;

one end of a movable shaft 6 penetrates through the bottom of the connecting cylinder 4, the other end of the movable shaft 6 is connected with a valve plate 7 for guiding air to flow, a fixed box 8 is fixed on the support frame 2 outside the valve plate 7, and the top and the bottom of the fixed box 8 are respectively connected with a clamping mechanism 11 through a first hose 9 and a second hose 10;

support columns 12 are fixed at the bottoms of 2 groups of clamping mechanisms 11 which are symmetrically distributed on the processing table 1, the bottoms of the support columns 12 are connected with the upper end surface of the processing table 1 through guide rails 14 capable of improving the moving stability, and threaded rods 13 for adjusting the intervals of the support columns 12 penetrate through the interiors of the 2 support columns 12;

2 thread grooves with the same pitch and opposite rotation directions are arranged on the movable shaft 6, the movable shaft 6 is in threaded connection with the connecting cylinder 4, and the connecting cylinder 4 is in bearing connection with the fixed box 8; a partition plate 111 is fixed on the side wall of the clamping mechanism 11, a first air storage cavity 112 and a second air storage cavity 113 are respectively formed in the clamping mechanism 11 on two sides of the partition plate 111, the first air storage cavity 112 and the second air storage cavity 113 are respectively communicated with the top and the bottom of the fixed box 8 through a first hose 9 and a second hose 10, the connecting cylinder 4 can drive the movable shaft 6 to move up and down when rotating, and drive the valve plate 7 to move in the fixed box 8, when the valve plate 7 moves upwards, air on the upper portion of the fixed box 8 can be pushed into the first air storage cavity 112 through the first hose 9, then enters one end of the fixed cylinder 115 through a transmission pipe 114, and drives a valve block 116 in the fixed cylinder 115 to move, and drives the movable rods 117 distributed at equal angles to move towards the direction close to the inner side of the clamping mechanism 11, so as to clamp a workpiece from the outside;

the first air storage cavity 112 and the second air storage cavity 113 are communicated with two ends of a fixed cylinder 115 through a transmission pipe 114, the fixed cylinder 115 is distributed at equal angles on the clamping mechanism 11, and the clamping mechanism 11 is of a circular structure; a valve block 116 for guiding the movement of the movable rod 117 is movably arranged inside the fixed cylinder 115, the movable rod 117 fixedly penetrates through the valve block 116, and two ends of the movable rod 117 penetrate through the clamping mechanism 11 and extend to the outside of the clamping mechanism; the connecting blocks 118 for improving the clamping resistance are adhered to the two ends of the movable rod 117, the movable rod 117 is in sliding connection with the clamping mechanism 11, the number of the movable rod 117 is the same as that of the fixed cylinder 115, when the valve plate 7 moves downwards, the air at the lower part of the fixed box 8 can be pushed into the second air storage cavity 113 through the second hose 10, the upper part of the fixed box 8 generates suction, the air at one end of the fixed cylinder 115 can be pumped into the upper part of the fixed box 8 through the transmission pipe 114 and the first hose 9, the air entering the second air storage cavity 113 enters the other end of the fixed cylinder 115 through the transmission pipe 114, the movable rod 117 with equal angular distribution is driven to move towards the outer side of the clamping mechanism 11, the workpiece is supported from the outside, and the two ends of the movable rod 117 are provided with the connecting blocks 118 made of rubber materials, so that the workpiece can not be damaged when being clamped.

The working principle is as follows: firstly, as shown in fig. 1-5, a workpiece to be processed, which needs to be clamped, is placed between 2 groups of clamping mechanisms 11, the workpiece is selectively sleeved outside or inserted into the clamping mechanisms 11 according to the specification of the workpiece, then a threaded rod 13 is rotated according to the length of the workpiece, the distance between 2 support columns 12 on the threaded rod 13 is changed, further the distance between the 2 groups of clamping mechanisms 11 is synchronously changed, then an output shaft of a motor 3 drives a connecting cylinder 4 to rotate, and the connecting cylinders 4 are connected through a belt pulley mechanism 5, so that the workpiece is clamped by the clamping mechanisms 11.

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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a clamping device of numerically control grinder work piece, includes processing platform, motor, clamping mechanism and guide rail, its characterized in that: a support frame is arranged on the upper end face of the processing table through bolts, a motor is mounted on the top of the support frame through bolts, a connecting cylinder is sleeved on an output shaft of the motor, and 2 connecting cylinders which are symmetrically distributed on the support frame are connected through a belt pulley mechanism;

2. The clamping device for the workpiece of the numerically controlled grinding machine as recited in claim 1, wherein: the last 2 screw grooves that are provided with the same, the opposite direction of turning of pitch of loose axle, and loose axle and connecting cylinder are threaded connection to connecting cylinder and fixed box are the bearing connection.

3. The clamping device for the workpiece of the numerically controlled grinding machine as recited in claim 1, wherein: the side wall of the clamping mechanism is fixedly provided with a partition plate, a first air storage cavity and a second air storage cavity are respectively formed in the clamping mechanism on two sides of the partition plate, and the first air storage cavity and the second air storage cavity are respectively communicated with the top and the bottom of the fixed box through a first hose and a second hose.

4. A clamping device for a workpiece on a numerically controlled grinding machine as claimed in claim 3, wherein: the first air storage cavity and the second air storage cavity are communicated with two ends of the fixed cylinder through transmission pipes, the fixed cylinder is distributed at equal angles on the clamping mechanism, and the clamping mechanism is of a circular structure.

5. The clamping device for the workpiece of the numerically controlled grinding machine as recited in claim 4, wherein: the inside activity of fixed section of thick bamboo is provided with the valve block that the guide movable rod removed, and the movable rod is fixed to run through in the valve block to the both ends of movable rod run through clamping mechanism and extend to its outside.

6. The clamping device for the workpiece of the numerically controlled grinding machine as recited in claim 5, wherein: the connecting blocks for improving the clamping resistance are pasted at the two ends of the movable rod, the movable rod is in sliding connection with the clamping mechanism, and the number of the movable rod is the same as that of the fixed cylinders.