CN112108904B

CN112108904B - Multi-station fixture

Info

Publication number: CN112108904B
Application number: CN202010861873.7A
Authority: CN
Inventors: 张文光; 袁静云; 卢文超; 刘辑; 邹欢
Original assignee: Jian College
Current assignee: Jian College
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2022-05-20
Anticipated expiration: 2040-08-25
Also published as: CN112108904A

Abstract

The invention relates to the field of clamps, and aims to provide a multi-station clamp which comprises a clamping plate, a clamping assembly and an adjusting device, wherein the clamping assembly comprises a screw rod, a nut block, a first guide rod, a second guide rod, a first clamping block, a second clamping block, a first clamping arm, a second clamping arm and a linkage rod, the screw rod is rotationally connected to the clamping plate, the nut block is in threaded connection with the screw rod, the first guide rod and the second guide rod are both arranged on the clamping plate, the first guide rod and the second guide rod are symmetrically arranged by taking the central line of the screw rod as a symmetrical line, the first clamping block is connected to the first guide rod in a sliding manner, the second clamping block is connected to the second guide rod in a sliding manner, the linkage rod is arranged on the nut block, two ends of the linkage rod respectively penetrate through the first clamping block and the second clamping block, the first clamping block and the second clamping block are both in sliding fit with the linkage rod, and the first clamping arm and the second clamping arm are respectively arranged on the first clamping block and the second clamping block; the multi-station clamp has high clamping efficiency on workpieces.

Description

Multi-station fixture

Technical Field

The invention relates to the field of clamps, in particular to a multi-station clamp.

Background

At present, when a workpiece is machined, a clamp is usually used for clamping the workpiece, one clamp can only clamp one workpiece at a time, when the workpiece is produced, a plurality of identical workpieces are often required to be machined, the clamping of each workpiece needs the clamp to perform a clamping and loosening process, the clamping and loosening process is repeated for the next workpiece, the clamp can only clamp one workpiece at a time, and the clamping efficiency of the workpiece is low.

Disclosure of Invention

The invention provides a multi-station clamp which is high in clamping efficiency on workpieces.

The technical purpose of the invention is realized by the following technical scheme:

a multi-station clamp comprises clamping plates, clamping assemblies and adjusting devices, wherein the clamping assemblies are at least arranged into three groups, each clamping assembly comprises a lead screw, a nut block, a first guide rod, a second guide rod, a first clamping block, a second clamping block, a first clamping arm, a second clamping arm and a linkage rod, the lead screw is rotatably connected onto the clamping plates, the nut block is in threaded connection onto the lead screw, the first guide rod and the second guide rod are both arranged on the clamping plates, the first guide rod and the second guide rod are symmetrically arranged by taking the central line of the screw rod as a symmetrical line, the first clamping block is connected to the first guide rod in a sliding manner, the second clamping block is connected to the second guide rod in a sliding manner, the linkage rod is arranged on the nut block, two ends of the linkage rod respectively penetrate through the first clamping block and the second clamping block, the first clamping block and the second clamping block are both in sliding fit with the linkage rod, and the first clamping arm and the second clamping arm are respectively arranged on the first clamping block and the second clamping block; the adjusting device comprises a motor, a chain and a chain wheel, the chain wheel is arranged on a screw rod of each group of clamping assemblies, the chain is sleeved on the screw rod, the motor is arranged on the clamping plate, and the motor is connected with one screw rod.

Further setting: the motor is detachably connected with the clamping plate, and the motor is detachably connected with the screw rod.

Further setting: the motor is provided with a first gear, the screw rod is provided with a second gear, and the first gear is meshed with the second gear.

Further setting: and a hand wheel is arranged on the lead screw.

Further setting: and the first clamping arm and the second clamping arm are respectively provided with a first fixing block and a second fixing block, and the opposite side walls of the first fixing block and the second fixing block are respectively provided with a fixing arc-shaped groove.

Further setting: and the fixed arc-shaped groove is internally provided with an anti-slip pad.

Further setting: the first fixing block is detachably connected with the first clamping arm, and the second fixing block is detachably connected with the second clamping arm.

The invention has the following beneficial effects: when clamping a workpiece, the workpiece is placed between a first clamping arm and a second clamping arm on each group of clamping assemblies, a motor is started, the motor drives a lead screw connected with the motor to rotate, the lead screw connected with the motor drives other lead screws to rotate through the cooperation of a chain wheel and a chain in the rotating process, all the lead screws are enabled to rotate simultaneously, the lead screw drives a nut block to move in the rotating process, the nut block drives a first clamping block and a second clamping block to move through a linkage rod, the first clamping block and the second clamping block move towards the direction close to each other until the first clamping arm and the second clamping arm clamp the workpiece, the purpose of clamping a plurality of workpieces at one time is achieved, and the clamping efficiency of the workpiece is high.

Drawings

FIG. 1 is a schematic structural view for embodying a jig in the embodiment;

FIG. 2 is a schematic structural diagram for embodying the adjusting means in the embodiment;

FIG. 3 is an enlarged view of the portion A of FIG. 1 for showing the positional relationship between the cleat and the fixing arc-shaped groove;

FIG. 4 is a schematic structural diagram for showing the positional relationship between the stabilizing plate and the holding plate in the embodiment;

FIG. 5 is a schematic structural diagram for showing the positional relationship between the large pulley and the small pulley in the embodiment;

fig. 6 is a schematic structural diagram for showing a positional relationship between the fan motor and the large pulley in the embodiment.

In the figure, 1, a clamping plate; 2. a lead screw; 3. a nut block; 4. a first guide bar; 5. a second guide bar; 6. a first clamping block; 7. a second clamping block; 8. a first clamp arm; 9. a second clamp arm; 10. a linkage rod; 11. a first frame body; 12. a slide through hole; 13. moving the through hole; 14. a first fixed block; 15. a second fixed block; 16. fixing the arc-shaped groove; 17. a non-slip mat; 18. a motor; 19. a chain; 20. a sprocket; 21. a first gear; 22. a second gear; 23. a hand wheel; 24. a stabilizing plate; 25. a fan rod; 26. a fan blade; 27. a large belt pulley; 28. a small belt pulley; 29. a belt; 30. a fan motor; 31. a fan frame; 32. and a stabilizing frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a multi-station clamp is shown in figure 1 and comprises a clamping plate 1, a clamping assembly and an adjusting device.

As shown in fig. 1 and 2, the clamping assemblies are arranged into three groups, the three groups of clamping assemblies are arranged at intervals, each clamping assembly comprises a screw rod 2, a nut block 3, a first guide rod 4, a second guide rod 5, a first clamping block 6, a second clamping block 7, a first clamping arm 8, a second clamping arm 9 and a linkage rod 10, the screw rod 2 is rotatably connected to a clamping plate 1, a first frame body 11 is arranged on the clamping plate 1, the screw rod 2 is rotatably connected with the first frame body 11, the nut block 3 is in threaded connection with the screw rod 2, the first guide rod 4 and the second guide rod 5 are both arranged on the first frame body 11 on the clamping plate 1, the first guide rod 4 and the second guide rod 5 are symmetrically arranged by taking the central line of the screw rod 2 as a symmetric line, the first clamping block 6 is slidably connected to the first guide rod 4, the second clamping block 7 is slidably connected to the second guide rod 5, the first clamping block 6 and the second clamping block 7 are both provided with sliding through holes 12, the first guide rod 4 penetrates through a first clamping block 6 through a sliding through hole 12, the second guide rod 5 penetrates through a second clamping block 7 through the sliding through hole 12, a linkage rod 10 is fixedly connected to a nut block 3, the first clamping block 6 and the second clamping block 7 are both provided with moving through holes 13, two ends of the linkage rod 10 respectively penetrate through the first clamping block 6 and the second clamping block 7 through the moving through holes 13, the first clamping block 6 and the second clamping block 7 are both in sliding fit with the linkage rod 10, a first clamping arm 8 and a second clamping arm 9 are respectively arranged on the first clamping block 6 and the second clamping block 7, the first clamping arm 8 and the second clamping arm 9 are respectively connected with a first fixing block 14 and a second fixing block 15, the first fixing block 14 is detachably connected with the first clamping arm 8 through a screw, the second fixing block 15 is detachably connected with the second clamping arm 9 through a screw, and the screws for connecting the first fixing block 14 and the second fixing block 15 are not shown in the figure, as shown in fig. 3, the opposite side walls of the first fixing block 14 and the second fixing block 15 are respectively provided with a fixing arc-shaped groove 16, a non-slip mat 17 is arranged in the fixing arc-shaped groove 16 so as to better clamp a workpiece, the non-slip mat 17 is a rubber mat, and the rubber mat is bonded on the fixing arc-shaped groove 16 through glue.

As shown in fig. 1 and 2, the adjusting device includes a motor 18, a chain 19 and a chain wheel 20, the chain wheel 20 is disposed on the lead screw 2 of each group of clamping assemblies, the chain 19 is sleeved on the lead screw 2, the motor 18 is detachably disposed on the clamping plate 1 through a screw, the motor 18 is detachably connected with one lead screw 2 at the edge, a first gear 21 is disposed on the motor 18, a second gear 22 is disposed on the lead screw 2, the first gear 21 is meshed with the second gear 22, and a hand wheel 23 is disposed on the lead screw 2 far away from the motor 18, so that when the motor 18 fails, the motor 18 is detached, the first gear 21 is separated from the second gear 22, and the hand wheel 23 is rotated to control the rotation of the lead screw 2, so that the clamp can be continuously used without the motor 18.

As shown in fig. 4 and 5, the two ends of the clamping plate 1 along the length direction thereof are connected with stabilizing plates 24, each stabilizing plate 24 is provided with a fan device, each fan device comprises a fan rod 25, a fan blade 26, a large belt wheel 27, a small belt wheel 28, a belt 29 and a fan motor 30, as shown in fig. 5 and 6, the fan motor 30 is arranged on the stabilizing plates 24 through a fan frame 31, a motor shaft of the fan motor 30 is connected with the eccentric position of the large belt wheel 27, the stabilizing plates 24 are connected with stabilizing frames 32, one end of the fan rod 25 is hinged with the stabilizing frames 32, the other end of the fan rod is connected with the fan blade 26, the fan blade 26 faces the clamping assembly, the small belt wheel 28 is rotatably connected with the fan rod 25, the belt 29 is sleeved on the large belt wheel 27 and the small belt wheel 28 and tensioned, and the large belt wheel 27 and the small belt wheel 28 are both i-shaped wheels. Fan motor 30 drives big band pulley 27 and rotates, big band pulley 27 drives little band pulley 28 through belt 29 and rotates at the rotation in-process, because the motor shaft of fan motor 30 is connected in the eccentric position department of big band pulley 27, therefore, in big band pulley 27 rotation in-process, big band pulley 27 can change at the ascending position in vertical direction, when big band pulley 27 changes at the ascending position in vertical direction, little band pulley 28 changes at the ascending position in vertical direction, and simultaneously, luffing motion takes place for fan pole 25, fan pole 25 drives fan piece 26 motion in the swing in-process, thereby play the fan effect, when staff's centre gripping work piece, can cool down the staff who presss from both sides the work piece.

When a workpiece is clamped, the workpiece is placed between the first fixing block 14 and the second fixing block 15 on each group of clamping components, the motor 18 is started, the motor 18 drives the first gear 21 to rotate, the first gear 21 drives the second gear 22 and the lead screw 2 connected with the second gear 22 to rotate in the rotating process, the rotating lead screw 2 drives other lead screws 2 to rotate through the matching of the chain wheel 20 and the chain 19, all the lead screws 2 rotate simultaneously, the lead screw 2 drives the nut block 3 to move in the rotating process, the nut block 3 drives the first clamping block 6 and the second clamping block 7 to move through the linkage rod 10, and the first clamping block 6 and the second clamping block 7 move towards the direction of approaching each other until the first fixing block 14 and the second fixing block 15 clamp the workpiece, so that the workpiece is positioned in the fixing groove and tightly abuts against the anti-slip mat 17, the purpose of clamping a plurality of workpieces at one time is realized, and the workpiece clamping efficiency is high.

When the workpiece is disassembled, the motor 18 is started, the motor 18 drives the screw rod 2 connected with the gear II 22 to rotate through the matching of the gear I21 and the gear II 22, the rotating screw rod 2 drives other screw rods 2 to rotate through the matching of the chain wheel 20 and the chain 19, all the screw rods 2 rotate simultaneously, the rotating direction of the screw rod 2 is opposite to the rotating direction of the screw rod 2 when the workpiece is clamped, the screw rod 2 drives the screw block 3 to move in the rotating process, the screw block 3 drives the first clamping block 6 and the second clamping block 7 to move through the linkage rod 10, the first clamping block 6 and the second clamping block 7 move towards the directions far away from each other, the workpiece is loosened, the workpiece is not clamped any more, and the purpose of disassembling the workpiece is achieved.

Claims

1. The utility model provides a multistation anchor clamps which characterized in that: comprises a clamping plate (1), clamping components and an adjusting device, wherein the clamping components are at least arranged into three groups, each clamping component comprises a lead screw (2), a nut block (3), a first guide rod (4), a second guide rod (5), a first clamping block (6), a second clamping block (7), a first clamping arm (8), a second clamping arm (9) and a linkage rod (10), the lead screw (2) is rotatably connected on the clamping plate (1), the nut block (3) is in threaded connection on the lead screw (2), the first guide rod (4) and the second guide rod (5) are both arranged on the clamping plate (1), the first guide rod (4) and the second guide rod (5) are symmetrically arranged by taking the central line of the lead screw (2) as a symmetrical line, the first clamping block (6) is in sliding connection on the first guide rod (4), the second clamping block (7) is in sliding connection on the second guide rod (5), the linkage rod (10) is arranged on the nut block (3), two ends of the linkage rod (10) respectively penetrate through the first clamping block (6) and the second clamping block (7), the first clamping block (6) and the second clamping block (7) are in sliding fit with the linkage rod (10), and the first clamping arm (8) and the second clamping arm (9) are respectively arranged on the first clamping block (6) and the second clamping block (7); the adjusting device comprises a motor (18), a chain (19) and a chain wheel (20), wherein the chain wheel (20) is arranged on the screw rod (2) of each group of clamping assemblies, the chain (19) is sleeved on the screw rod (2), the motor (18) is arranged on the clamping plate (1), and the motor (18) is connected with one screw rod (2);

the two ends of the clamping plate (1) along the length direction are connected with stabilizing plates (24), the stabilizing plates (24) are provided with fan devices, each fan device comprises a fan rod (25), a fan blade (26) and a large belt wheel (27), the fan-shaped fan comprises a small belt wheel (28), a belt (29) and a fan-shaped motor (30), wherein the fan-shaped motor (30) is arranged on a stabilizing plate (24) through a fan frame (31), a motor shaft of the fan-shaped motor (30) is connected with the eccentric position of the large belt wheel (27), the stabilizing plate (24) is connected with a stabilizing frame (32), one end of a fan rod (25) is hinged with the stabilizing frame (32), the other end of the fan rod is connected with a fan sheet (26), the fan sheet (26) faces towards a clamping assembly, the small belt wheel (28) is rotatably connected with the fan rod (25), the belt (29) is sleeved on the large belt wheel (27) and the small belt wheel (28) and tensioned, and the large belt wheel (27) and the small belt wheel (28) are I-shaped wheels.

2. A multi-station clamp according to claim 1, wherein: the motor (18) is detachably connected with the clamping plate (1), and the motor (18) is detachably connected with the screw rod (2).

3. A multi-station clamp according to claim 2, wherein: the motor (18) is provided with a first gear (21), the screw rod (2) is provided with a second gear (22), and the first gear (21) is meshed with the second gear (22).

4. A multi-station clamp according to claim 3, wherein: and a hand wheel (23) is arranged on the lead screw (2).

5. A multi-station clamp according to claim 1, wherein: the clamping device is characterized in that a first fixing block (14) and a second fixing block (15) are respectively arranged on the first clamping arm (8) and the second clamping arm (9), and fixing arc-shaped grooves (16) are formed in the opposite side walls of the first fixing block (14) and the second fixing block (15).

6. A multi-station clamp according to claim 5, wherein: and an anti-skid pad (17) is arranged in the fixed arc-shaped groove (16).

7. A multi-station clamp according to claim 5, wherein: the first fixing block (14) is detachably connected with the first clamping arm (8), and the second fixing block (15) is detachably connected with the second clamping arm (9).