CN213561267U

CN213561267U - Pneumatic workpiece fixing device

Info

Publication number: CN213561267U
Application number: CN202022670705.8U
Authority: CN
Inventors: 杨权武; 黄林瞻; 杨特然
Original assignee: Wenzhou Jiuyi Heavy Industries Co ltd
Current assignee: Wenzhou Jiuyi Heavy Industries Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-06-29
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a pneumatic work piece fixing device, including base member, vacuum chuck and cylinder, the spout has been seted up on the surface of base member, and the inside of base member is provided with the installation piece, the cylinder is installed to the top of base member, and the output of cylinder is connected with the fixed block, one side of worm wheel is connected with the worm, and the top of worm wheel is fixed with the bearing block, the embedded stopper of installing in one side of bearing block, and the one end of stopper is run through by the lead screw, the embedded extension piece of installing in one side of stopper, one side of spring is fixed with the fixture block. This pneumatic work piece fixing device, the inside of base member is provided with the spout of arc column structure, slides in the inside of spout through promoting the installation piece, can adjust the installation angle between vacuum chuck and the cylinder, is convenient for carry out the fixed work to the work piece from the equidirectional, has improved the flexibility in the device use greatly, the better processing demand that has satisfied the work piece.

Description

Pneumatic workpiece fixing device

Technical Field

The utility model relates to a relevant technical field of machinery specifically is a pneumatic work piece fixing device.

Background

The machining process refers to a process of changing the overall dimension or performance of a workpiece through mechanical equipment, in order to ensure the machining precision of the workpiece, a fixing device is often needed to fix the workpiece, so that the workpiece is limited to receive machining treatment of the mechanical equipment, and with the rapid development of machining technologies, people also put forward higher requirements on the machining of the workpiece, but the existing fixing device has certain defects.

The flexibility that current fixing device used is relatively poor, can't realize the fixed of work piece from different angles, has certain limitation, and current fixing device can't adjust fixed position and interval when fixed to the work piece, can't satisfy the fixed demand of different work pieces.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic work piece fixing device to it is relatively poor to provide the flexibility that current fixing device used in the above-mentioned background art of solution, can't realize the fixed of work piece from different angles, can not adjust fixed position and interval, can not satisfy the problem of the fixed demand of different work pieces.

In order to achieve the above object, the utility model provides a following technical scheme: a pneumatic workpiece fixing device comprises a base body, a vacuum chuck and an air cylinder, wherein a sliding groove is formed in the surface of the base body, an installation block is arranged inside the base body, the vacuum chuck is fixed below the installation block, the air cylinder is installed above the base body, the output end of the air cylinder is connected with a fixing block, a worm wheel and a worm are installed inside the fixing block, one side of the worm wheel is connected with the worm, a bearing block is fixed above the worm wheel, a lead screw is installed inside the bearing block, a limiting block is installed on one side of the bearing block in an embedded mode, one end of the limiting block is penetrated through by the lead screw, a clamping groove is formed in the surface of the limiting block, an extension block is installed on one side of the limiting block in an embedded mode, an air bag is fixed on the lower surface of the extension block, a spring is installed inside the extension block, a clamping block is, and one side of the clamping block is fixed with a pressing block.

Preferably, the mounting block and the sliding groove form a sliding structure, and the sliding groove is of an arc-shaped structure.

Preferably, the worm wheel is connected with the worm in a meshed mode, the worm is connected with the fixing block in a rotating mode, and the fixing block and the bearing block form a rotating structure.

Preferably, the number of the limiting blocks is 2 about the central point of the bearing block, the limiting blocks and the bearing block form a sliding structure, and the limiting blocks and the screw rod are in threaded connection.

Preferably, the extension block and the limiting block form a sliding structure, and the surface of the limiting block is provided with clamping grooves at equal intervals.

Preferably, the fixture blocks form a telescopic structure through the springs and the limiting blocks, 2 fixture blocks are symmetrically arranged on the center points of the limiting blocks, and the fixture blocks are connected with the clamping grooves in a clamping mode.

Compared with the prior art, the beneficial effects of the utility model are that: the pneumatic workpiece fixing device comprises a base plate,

1. the inner part of the base body is provided with the chute with an arc-shaped structure, and the mounting angle between the vacuum chuck and the air cylinder can be adjusted by pushing the mounting block to slide in the chute, so that workpieces can be conveniently fixed from different directions, the flexibility of the device in the use process is greatly improved, and the processing requirements of the workpieces are better met;

2. a screw rod is arranged inside the bearing block, 2 limiting blocks are symmetrically arranged inside the bearing block, the spacing distance between the 2 limiting blocks can be adjusted by rotating the screw rod, so that different positions of a workpiece can be conveniently clamped, and a slidable extending block is arranged inside the limiting blocks, so that the fixing range of the workpiece is further expanded;

3. the internally mounted of fixed block has worm wheel and worm, through rotating the worm to utilize the meshing between worm wheel and the worm to connect, can adjust the installation angle of bearing block, thereby realized the multi-angle centre gripping of work piece, the gasbag of extension piece surface mounting can avoid causing the damage to the work piece surface at the in-process of centre gripping.

Drawings

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

FIG. 2 is a structural diagram of the base body and the mounting block as viewed from the right side of the present invention;

FIG. 3 is a schematic view of the overlooking structure of the installation of the limiting block and the extending block of the present invention;

FIG. 4 is a schematic view of the top view structure of the worm wheel and worm according to the present invention;

fig. 5 is the utility model discloses the stopper overlooks the structure schematic with spring mounting.

In the figure: 1. a substrate; 2. a chute; 3. mounting blocks; 4. a vacuum chuck; 5. a cylinder; 6. a fixed block; 7. a worm gear; 8. a worm; 9. a bearing block; 10. a screw rod; 11. a limiting block; 12. a card slot; 13. an extension block; 14. an air bag; 15. a spring; 16. a clamping block; 17. and (7) briquetting.

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 pneumatic workpiece fixing device comprises a base body 1, a sliding groove 2, an installation block 3, a vacuum chuck 4, an air cylinder 5, a fixing block 6, a worm wheel 7, a worm 8, a bearing block 9, a screw rod 10, a limiting block 11, a clamping groove 12, an extension block 13, an air bag 14, a spring 15, a clamping block 16 and a pressing block 17, wherein the sliding groove 2 is formed in the surface of the base body 1, the installation block 3 is arranged inside the base body 1, the vacuum chuck 4 is fixed below the installation block 3, the air cylinder 5 is installed above the base body 1, the output end of the air cylinder 5 is connected with the fixing block 6, the worm wheel 7 and the worm 8 are installed inside the fixing block 6, the worm 8 is connected to one side of the worm wheel 7, the bearing block 9 is fixed above the worm wheel 7, the screw rod 10 is installed inside the bearing block 9, the limiting block 11 is installed on one side of the bearing block 9 in, a clamping groove 12 is formed in the surface of the limiting block 11, an extending block 13 is embedded in one side of the limiting block 11, an air bag 14 is fixed on the lower surface of the extending block 13, a spring 15 is installed inside the extending block 13, a clamping block 16 is fixed on one side of the spring 15, the clamping block 16 penetrates through the clamping groove 12, and a pressing block 17 is fixed on one side of the clamping block 16;

the mounting block 3 and the chute 2 form a sliding structure, the chute 2 is arranged to be an arc-shaped structure, and the mounting angle of the vacuum chuck 4 below the base body 1 can be adjusted by pushing the mounting block 3 to slide in the chute 2, so that the device can work on planes with different angles, and the application range of the whole device is expanded;

the worm wheel 7 is in meshed connection with the worm 8, the worm 8 is in rotary connection with the fixed block 6, the fixed block 6 and the bearing block 9 form a rotary structure, and the worm 8 is in rotary connection with the fixed block 6, so that the fixed block 6 cannot synchronously rotate when the worm 8 is rotated, torsional force cannot be generated on the surface of the fixed block 6, and the worm wheel 7 drives the bearing block 9 to synchronously rotate when the worm 8 rotates due to meshed connection between the worm 8 and the worm wheel 7, so that the installation angle of the bearing block 9 is changed;

the number of the limiting blocks 11 is 2 about the central point of the bearing block 9, the limiting blocks 11 and the bearing block 9 form a sliding structure, the limiting blocks 11 are in threaded connection with the lead screw 10, the tail end of each limiting block 11 is installed in the bearing block 9 in an embedded mode, a good limiting effect can be achieved on the limiting blocks 11, the limiting blocks 11 and the lead screw 10 are prevented from rotating together, the symmetrically arranged limiting blocks 11 can increase the contact area between the device and a workpiece, and the workpiece fixing stability is improved;

the extending block 13 and the limiting block 11 form a sliding structure, clamping grooves 12 are formed in the surface of the limiting block 11 at equal intervals, the clamping grooves 12 arranged at equal intervals are convenient to correspond to clamping blocks 16 after position adjustment, the combined length of the extending block 13 and the limiting block 11 can be adjusted by sliding the extending block 13 in the limiting block 11, different positions of the surface of a workpiece can be conveniently fixed, and fixing requirements of different workpieces are better met;

the clamping block 16 and the limiting block 11 form a telescopic structure through the

spring

15, 2 clamping blocks 16 are symmetrically arranged about the central point of the limiting block 11, the clamping block 16 is connected with the clamping groove 12 in a clamping mode, the clamping block 16 and the clamping groove 12 can be quickly clamped by the aid of the telescopic effect of the spring 15, the clamping block 16 and the pressing block 17 are both arranged in a cylindrical structure, the diameter of the clamping block 16 is larger than that of the pressing block 17, the clamping block 16 can be better limited in the clamping groove 12 in a larger diameter mode, the extending block 13 and the limiting block 11 after length adjustment can be limited, and looseness in application process can be avoided;

the working principle is as follows: when the pneumatic workpiece fixing device is used, as shown in figures 1-5, firstly the vacuum chuck 4 is adsorbed on the smooth part of the surface of the operating table, then the nut on the surface of the mounting block 3 is loosened, the mounting block 3 is pushed to slide in the chute 2, so that the central line of the cylinder 5 is distributed in parallel with the central line of the workpiece to be fixed, after the adjustment is completed, the nut on the surface of the mounting block 3 is screwed, so that the nut is clamped on the surface of the base body 1, the looseness in the use process is avoided, at the moment, the worm 8 can be rotated, because the worm 8 is in meshed connection with the worm wheel 7, when the worm 8 rotates, the worm wheel 7 can drive the bearing block 9 to synchronously rotate, the limiting block 11 and the extending block 13 are attached to the surface of the workpiece by adjusting the horizontal mounting angle of the bearing block 9, after the adjustment is completed, the workpiece can be fixed by pulling the fixing block 6 to move downwards through the cylinder, due to the self-locking property of the worm wheel 7 and the worm 8, the bearing block 9 cannot rotate after being angularly adjusted, so that the firmness in the fixing process is ensured;

when the fixed distance of the surface of a workpiece needs to be adjusted, the screw rod 10 is rotated, the thread directions of the surface of the screw rod 10 are opposite to each other, so that when the screw rod 10 rotates, the symmetrically arranged limiting blocks 11 can synchronously move oppositely or oppositely in the bearing block 9, the distance between the limiting blocks 11 is adjusted, different positions of the workpiece are convenient to fix, when the middle of the workpiece needs to be fixed, the combined length between the extension block 13 and the limiting block 11 can be adjusted, when the adjustment is carried out, the pressing block 17 is pressed, the spring 15 is extruded and contracted to generate displacement and drive the clamping block 16 to be disengaged from the inside of the clamping groove 12, then the pressing block 17 is moved leftwards in the inside of the clamping groove 12, the pressing block 17 drives the extension block 13 to extend out of the inside of the limiting block 11, after the pressing block 17 is moved to the required position, the elastic action of the spring 15 is utilized to drive the clamping block 16 to be engaged with the corresponding clamping, through the combination length of adjustment extension piece 13 and stopper 11, be convenient for fix the different positions on workpiece surface, increased the flexibility in the device use, the surface of extension piece 13 is provided with gasbag 14, can avoid causing the damage to workpiece surface at fixed in-process, has increased holistic practicality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pneumatic work piece fixing device, includes base member (1), vacuum chuck (4) and cylinder (5), its characterized in that: the surface of the base body (1) is provided with a sliding groove (2), the inside of the base body (1) is provided with an installation block (3), a vacuum sucker (4) is fixed below the installation block (3), an air cylinder (5) is installed above the base body (1), the output end of the air cylinder (5) is connected with a fixed block (6), a worm wheel (7) and a worm (8) are installed inside the fixed block (6), one side of the worm wheel (7) is connected with the worm (8), a bearing block (9) is fixed above the worm wheel (7), a lead screw (10) is installed inside the bearing block (9), a limit block (11) is installed on one side of the bearing block (9) in an embedded mode, one end of the limit block (11) is penetrated through by the lead screw (10), a clamping groove (12) is formed in the surface of the limit block (11), an extension block (13) is installed on one side of the limit block (, and the lower surface of the extension block (13) is fixed with an air bag (14), a spring (15) is installed in the extension block (13), a clamping block (16) is fixed on one side of the spring (15), the clamping block (16) penetrates through the clamping groove (12), and a pressing block (17) is fixed on one side of the clamping block (16).

2. A pneumatic workpiece holding apparatus as claimed in claim 1, characterised in that: the mounting block (3) and the sliding groove (2) form a sliding structure, and the sliding groove (2) is of an arc-shaped structure.

3. A pneumatic workpiece holding apparatus as claimed in claim 1, characterised in that: the worm wheel (7) is connected with the worm (8) in a meshed mode, the worm (8) is connected with the fixing block (6) in a rotating mode, and the fixing block (6) and the bearing block (9) form a rotating structure.

4. A pneumatic workpiece holding apparatus as claimed in claim 1, characterised in that: the number of the limiting blocks (11) is 2 about the central point of the bearing block (9) symmetrically, the limiting blocks (11) and the bearing block (9) form a sliding structure, and the limiting blocks (11) are in threaded connection with the screw rod (10).

5. A pneumatic workpiece holding apparatus as claimed in claim 1, characterised in that: the extension block (13) and the limiting block (11) form a sliding structure, and clamping grooves (12) are formed in the surface of the limiting block (11) at equal intervals.

6. A pneumatic workpiece holding apparatus as claimed in claim 1, characterised in that: the fixture blocks (16) form a telescopic structure with the limiting block (11) through the springs (15), 2 fixture blocks (16) are symmetrically arranged around the central point of the limiting block (11), and the fixture blocks (16) are connected with the clamping grooves (12) in a clamping mode.