CN216967089U

CN216967089U - Multi-head CNC (computer numerical control) pneumatic clamping workbench capable of being rapidly switched

Info

Publication number: CN216967089U
Application number: CN202220594425.XU
Authority: CN
Inventors: 戴继文; 陈伟华; 宋庆娟; 石志勤
Original assignee: Xiamen Hongcheng Insulating Materials Co ltd
Current assignee: Xiamen Hongcheng Insulating Materials Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-15
Anticipated expiration: 2032-03-18

Abstract

The utility model relates to the technical field of clamp devices, in particular to a fast-switching multi-head CNC pneumatic clamping workbench which comprises a supporting table, a plurality of assembling clamp mechanisms arranged on the supporting table and a driving mechanism used for driving the clamping mechanisms to move. The clamping mechanism comprises a fixed plate and a movable plate which are arranged oppositely, the fixed plate is fixedly arranged on the supporting platform, and the movable plate is horizontally and movably arranged on the supporting platform. The driving mechanism comprises a wedge assembly and an air cylinder, the wedge assembly comprises a first wedge block and a second wedge block which can move relatively, the first wedge block is connected with a piston of the air cylinder, the second wedge block is fixedly connected with the side wall of the movable plate, and the inclined surface of the first wedge block is embedded with the inclined surface of the second wedge block. The utility model provides a multi-head CNC pneumatic clamping workbench which can rapidly switch clamping mechanisms and is simple in structure and convenient to use.

Description

Multi-head CNC pneumatic clamping workbench capable of being switched rapidly

Technical Field

The utility model relates to the technical field of clamp devices, in particular to a multi-head CNC pneumatic clamping workbench capable of being switched quickly.

Background

The numerical control machining is machining using a numerical control machining tool. CNC machining machines are programmed in a nc machining language, typically G-code. Numerical control machining has great advantages over manual machining, and parts produced by numerical control machining are very accurate and have repeatability; numerical control machining can produce parts with complex shapes which cannot be finished by manual machining.

In the existing CNC machining, a pneumatic clamping jig is generally adopted, a clamping plate at the upper part is driven to move downwards through a cylinder structure, workpieces placed on a workbench are extruded and fixed, but in actual use, due to the fact that the flatness of the upper surface and the flatness of the lower surface of the workpieces are different due to the fact that the quality of the workpieces is different, the installation precision of the workpieces is reduced, and the machining effect is affected; meanwhile, the clamping mode is time-consuming and labor-consuming, long in clamping time and low in working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multi-head CNC pneumatic clamping workbench which can be switched quickly and is simple in structure and convenient to use, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a fast-switching multi-head CNC pneumatic clamping worktable comprises,

a supporting table, a plurality of assembling clamping mechanisms and a driving mechanism for driving the clamping mechanisms to move are arranged on the supporting table,

the clamping mechanism comprises a fixed plate and a movable plate which are oppositely arranged, the fixed plate is fixedly arranged on the supporting platform, the movable plate is horizontally and movably arranged on the supporting platform,

the driving mechanism comprises a wedge assembly and an air cylinder, the wedge assembly comprises a first wedge block and a second wedge block which can move relatively, the first wedge block is connected with the air cylinder, the second wedge block is fixedly connected with the side wall of the movable plate, and the inclined surface of the first wedge block is embedded with the inclined surface of the second wedge block.

In a further improvement, the wedge assembly further comprises a limiting block which is arranged in a manner that the first wedge block can move relatively, the limiting block is fixedly arranged on the supporting table, and a vertical surface of the limiting block is embedded with a vertical surface of the first wedge block.

Further improved, the vertical face and the inclined face of the first wedge block extend outwards respectively to be provided with a guide block, the second wedge block and the limiting block are provided with first guide grooves corresponding to the guide blocks, and the guide blocks are slidably arranged in the first guide grooves.

In a further improvement, wing parts are respectively arranged on two sides of the guide block, and second guide grooves corresponding to the wing parts are arranged in the guide grooves.

In a further improvement, one side of the fixing plate is provided with a limit groove corresponding to the limit block, and the limit blocks of the two adjacent sets of clamping mechanisms are abutted to the limit grooves.

In a further improvement, the clamping mechanism further comprises a set of tooling plates for clamping the workpiece, and the tooling plates are respectively and fixedly mounted on the fixed plate and the movable plate.

In a further improvement, the supporting table is provided with an installation groove, and the fixing plate is fixedly arranged in the installation groove.

The improved structure is characterized in that the supporting platform is provided with a plurality of horizontal sliding rails, the bottom of the movable plate is provided with a sliding block corresponding to the horizontal sliding rails, and the bottom of the sliding block can be movably arranged in the horizontal sliding rails.

Compared with the prior art, the utility model has the beneficial effects that:

the movable plate is driven to move by the wedge-shaped assembly and the air cylinder, wherein the wedge-shaped assembly comprises a first wedge-shaped block and a second wedge-shaped block which are embedded on the inclined surface and can move relatively, and the second wedge-shaped block is fixed on the movable plate and keeps a certain height. Therefore, when the cylinder drives the first wedge block to move up and down, the second wedge block slides along the inclined surface of the first wedge block to form horizontal reciprocating displacement, so that clamping and loosening of a tool between the fixed plate and the movable plate are realized, the structure is simple, the use is convenient, and the top surface of a workpiece is more convenient to process due to the fixed side wall; furthermore, clamping in the horizontal direction can be realized through the cooperation of two wedge blocks through cylinder lift, and the switching is quick, and work efficiency promotes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

FIG. 2 is an exploded view of the wedge assembly of the present invention;

FIG. 3 is an exploded view of a portion of the structure of the present invention;

in the figure:

1. a support table;

11. mounting grooves; 12. a horizontal slide rail;

2. a clamping mechanism;

21. a fixing plate; 22. a movable plate; 23. assembling a plate; 24. a slider; 211. a limiting groove;

3. a drive mechanism;

31. a wedge assembly; 32. a cylinder; 311. a first wedge block; 312. a second wedge block; 313. a limiting block; 314. a guide block; 315. a first guide groove; 3141. a wing portion; 3151. a second guide groove.

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 inventive efforts based on the embodiments of the present invention, are within the scope of protection 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 utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1-3, a fast-switching multi-head CNC pneumatic clamping worktable includes a supporting table 1, and a plurality of assembling clamping mechanisms 2 and a driving mechanism 3 for driving the clamping mechanisms 2 to move are disposed on the supporting table 1. The clamping mechanism 2 comprises a fixed plate 21 and a movable plate 22 which are arranged oppositely, the fixed plate 21 is fixedly arranged on the supporting platform 1, and the movable plate 22 is horizontally and movably arranged on the supporting platform 1. The driving mechanism 3 comprises a wedge assembly 31 and a cylinder 32, the wedge assembly 31 comprises a first wedge block 311 and a second wedge block 312 which can move relatively, the first wedge block 311 is connected with a piston of the cylinder 32, the second wedge block 312 is fixedly connected with the side wall of the movable plate 22, and the inclined surface of the first wedge block 311 is embedded with the inclined surface of the second wedge block 312.

In this embodiment, a plurality of assembling and clamping mechanisms 2 are provided, each group of clamping mechanisms 2 is provided with a corresponding driving mechanism 3 for driving the assembling mechanism 2 to work, and each group of clamping mechanisms 2 and driving mechanisms 3 are independent from other groups.

Further, referring to fig. 1-2, the wedge assembly 31 further includes a limit block 313 movably disposed relative to the first wedge block 311, and the limit block 313 is fixedly disposed on the support table 1. In this embodiment, the cylinder 32 is disposed at the bottom of the supporting platform 1, a piston of the cylinder 32 sings the supporting platform 1 and is connected to the first wedge-shaped block 311, one side of the first wedge-shaped block 311 close to the clamping mechanism 2 is an inclined surface, and one side of the first wedge-shaped block 311 far away from the clamping mechanism 2 is a vertical surface. One side of the second wedge-shaped block 312 close to the clamping mechanism 2 is a vertical surface, and one side close to the first wedge-shaped block 311 is an inclined surface. One side of the limit block 313 close to the first wedge-shaped block 311 is a vertical surface. The inclined surface of the first wedge-shaped block 311 is embedded with the inclined surface of the second wedge-shaped block 312, and the vertical surface of the limit block 313 is embedded with the vertical surface of the first wedge-shaped block 311. In this embodiment, the inclined surface of the first wedge block 311 is inclined from top to bottom gradually towards a direction away from the second wedge block 312.

Specifically, the vertical surface and the inclined surface of the first wedge-shaped block 311 are respectively provided with a guide block 314 extending outwards, and two sides of the guide block 314 are respectively provided with a wing portion 3141. The second wedge-shaped block 312 and the stopper 313 are provided with a first guide groove 315 corresponding to the guide block 314, and the first guide groove 315 is provided with a second guide groove 3151 corresponding to the wing 3141. The guide block 314 is slidably disposed in the first guide groove 315, and due to the matching arrangement of the wing portion 3141 and the second guide groove 3151, when the first wedge-shaped block 311, the second wedge-shaped block 312 and the limiting block 313 move relatively, the two elements will not be separated from each other, so as to form a limiting position along the direction of the guide groove, thereby improving the structural stability.

The working principle is as follows: the piston of the cylinder 32 is lifted to the highest position to drive the first wedge-shaped block 311 to be lifted to the first position, at this time, the fixed plate 21 is completely separated from the movable plate 22, and the movable plate 22 is farthest from the fixed plate 21;

the workpiece to be machined is placed between the fixed plate 21 and the movable plate 22, the descending of the piston of the air cylinder 32 controls the descending of the first wedge block 311, and the second wedge block 312 is pushed to move towards the side close to the fixed plate 21 until the workpiece to be machined is completely clamped by the fixed plate 21 and the movable plate 22, and then the workpiece to be machined is stopped, and the second position is reached.

In the embodiment, the wedge-shaped component 31 is arranged, so that the workpiece can be quickly and conveniently clamped in the horizontal direction, the use is convenient, and the processing efficiency is improved; and the lifting displacement and the horizontal displacement ratio of the cylinder are increased by arranging the inclined plane, so that the clamping precision is improved, and meanwhile, the clamping device is simple in structure and convenient to process and produce.

Referring to fig. 3, a limiting groove 211 corresponding to the limiting block 313 is formed in one side of the fixing plate 21, and the limiting block 313 between two adjacent sets of the clamping mechanisms 2 is abutted against the limiting groove 211, so that the fixing plate 21 and the limiting block 313 between each adjacent set are limited, and the structural stability is further improved.

In this embodiment, the clamping mechanism 2 further includes a set of tooling plates 23 for clamping the workpiece, and the tooling plates 23 are respectively and fixedly mounted on the fixed plate 21 and the movable plate 22. The tooling plate 23 is provided with workpiece grooves corresponding to workpieces to be machined, wherein the tooling plate 23 comprises tooling plates 23 with different types of workpiece grooves, the corresponding tooling plates 23 can be selected to be mounted on the fixed plate 21 and the movable plate 22 according to actual machining requirements, and the tooling plate is convenient to use and can adapt to different machining requirements.

Further, a mounting groove 11 is formed in the support table 1, and the fixing plate 21 is fixedly disposed in the mounting groove 11.

Further, a plurality of horizontal slide rails 12 are fixedly arranged on the support table 1, and the arrangement direction of the horizontal slide rails 12 is parallel to the moving direction of the second wedge-shaped block 312. The bottom of the movable plate 22 is provided with a slide block 24 corresponding to the horizontal slide rail 12, and the bottom of the slide block 24 is movably arranged in the horizontal slide rail 12. The top of the horizontal sliding rail 12 is provided with two side wings which are embedded with the sliding blocks 24 to limit the vertical direction of the movable plate 22. The second wedge-shaped block 312 pushes the movable plate 22 to move along the horizontal sliding rail 12, and the horizontal sliding rail 12 limits the moving direction of the movable plate 22.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A multi-head CNC pneumatic clamping worktable capable of being switched rapidly is characterized by comprising,

a supporting table (1), wherein a plurality of assembling clamp mechanisms (2) and a driving mechanism (3) for driving the clamping mechanisms (2) to move are arranged on the supporting table (1),

the clamping mechanism (2) comprises a fixed plate (21) and a movable plate (22) which are oppositely arranged, the fixed plate (21) is fixedly arranged on the supporting platform (1), the movable plate (22) is horizontally and movably arranged on the supporting platform (1),

the driving mechanism (3) comprises a wedge assembly (31) and a cylinder (32), the wedge assembly (31) comprises a first wedge block (311) and a second wedge block (312) which can move relatively, the first wedge block (311) is connected with a piston of the cylinder (32), the second wedge block (312) is fixedly connected with the side wall of the movable plate (22), and the inclined surface of the first wedge block (311) is embedded with the inclined surface of the second wedge block (312).

2. The fast-switching multi-head CNC pneumatic clamping workbench according to claim 1, wherein the wedge assembly (31) further comprises a limit block (313) movably arranged relative to the first wedge block (311), the limit block (313) is fixedly arranged on the support table (1), and a vertical surface of the limit block (313) is embedded with a vertical surface of the first wedge block (311).

3. The fast-switching multi-head CNC pneumatic clamping workbench according to claim 2, wherein guide blocks (314) are respectively and outwardly extended from the vertical surface and the inclined surface of the first wedge block (311), first guide grooves (315) corresponding to the guide blocks (314) are formed in the second wedge block (312) and the limiting block (313), and the guide blocks (314) are slidably arranged in the first guide grooves (315).

4. The fast-switching multi-head CNC pneumatic clamping workbench according to claim 3, wherein wing parts (3141) are respectively arranged on two sides of the guide block (314), and a second guide groove (3151) corresponding to the wing parts (3141) is arranged in the first guide groove (315).

5. The fast-switching multi-head CNC pneumatic clamping workbench according to claim 2, wherein a limiting groove (211) corresponding to the limiting block (313) is formed on one side of the fixing plate (21), and the limiting block (313) between two adjacent sets of clamping mechanisms (2) is abutted to the limiting groove (211).

6. A fast-switching multi-head CNC pneumatic clamping worktable according to claim 1, wherein the clamping mechanism (2) further comprises a set of tooling plates (23) for clamping workpieces, the tooling plates (23) are fixedly mounted on the fixed plate (21) and the movable plate (22), respectively.

7. The fast-switching multi-head CNC pneumatic clamping workbench according to claim 1, wherein a mounting groove (11) is provided on said supporting platform (1), and said fixing plate (21) is fixedly arranged in said mounting groove (11).

8. The fast-switching multi-head CNC pneumatic clamping workbench according to claim 1, wherein a plurality of horizontal sliding rails (12) are arranged on the supporting platform (1), a sliding block (24) corresponding to the horizontal sliding rails (12) is arranged at the bottom of the movable plate (22), and the bottom of the sliding block (24) is movably arranged in the horizontal sliding rails (12).