CN104191287B

CN104191287B - Pneumatic clamping device for machine tool

Info

Publication number: CN104191287B
Application number: CN201410302752.3A
Authority: CN
Inventors: 周秋健; 肖云峰
Original assignee: Suzhou And Science & Technology Development Co Ltd
Current assignee: SUZHOU AND SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD,
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2017-02-08
Anticipated expiration: 2034-06-30
Also published as: CN104191287A

Abstract

The invention discloses a pneumatic clamping device for a machine tool. Two fixed blocks which are arranged in a parallel mode are arranged on a base of a machine tool working table, a fixed jaw is formed in the middles of the two fixed blocks, two first clamping blocks which stretch out of the two sides of the fixed jaw are arranged on the fixed jaw, and a plurality of first clamping openings which can clamp workpieces are evenly formed in each clamping block; two movable jaws are movably arranged on the two fixed blocks and arranged on the two sides of the fixed jaw respectively, a second clamping block which extends outwards is arranged on each movable jaw, and second clamping openings capable of clamping the workpieces are evenly formed in each second clamping block; each movable jaw is connected with a driving device, the two movable jaws can be driven by the respective driving devices to slide on the two fixed blocks, and therefore the workpiece in each first clamping opening and the corresponding second clamping opening can be tightened or loosened. The pneumatic clamping device has the advantages that clamping is reliable, and the outer surfaces of the workpieces are not prone to damage.

Description

Lathe pneumatic gripping device

Technical field

The present invention relates to machining fixture, more particularly, to a kind of lathe pneumatic gripping device.

Background technology

External fixator clip is one of requisite instrument in medical apparatus and instruments, and its Main Function is that clamping two is adjacent Pole is thus be fixedly attached together two poles.The structure of external fixator clip is as shown in figure 1, be arranged with connecting rod Two groups of clips, every group of clip includes upper fixture block 11 and lower fixture block 12, and pole can be clamped between upper fixture block 11 and lower fixture block 12 Holding tank 13 in.Upper fixture block 11 is usually processing on Digit Control Machine Tool, and the workpiece for processing upper fixture block 11 is and upper folder The consistent U-shaped block of block 11 outline, the outline due to U-shaped block has circular shape, thus directly by clamping workpiece to commonly Vice on extremely difficult, easily crush surface of the work in clamping process, and clamping be unreliable, in process workpiece meeting Produce displacement because of the effect by cutting force.

Content of the invention

Needed for the present invention, the technical problem of solution is：The lathe that a kind of clamping is reliable, be hardly damaged outer surface of workpiece is provided Use pneumatic gripping device.

For solving the above problems, the technical solution used in the present invention is：Described lathe pneumatic gripping device, including solid Surely it is arranged at the base on platen, two fixed blocks be arrangeding in parallel are provided with base, regular jaw is located at two Fixation is shelved on two fixed blocks respectively for the middle part of individual fixed block and its two ends, is provided with two first folders on regular jaw Hold block, two the first grip blocks stretch out the both sides of regular jaw respectively, some energy clampings are evenly arranged with each grip block First clamp port of workpiece, the Internal periphery of each the first clamp port all with the workpiece outline phase one in the first clamp port Cause；On two fixed blocks, it is movably set with a moving jaw respectively positioned at regular jaw both sides, on each moving jaw Be provided with protruding second grip block, each second grip block is evenly arranged with some can clamping workpieces the Two clamp ports, the Internal periphery of each the second clamp port is all consistent with the workpiece outline in the second clamp port；Each is lived Movable clamp port is all connected with driving means, and two moving jaws can be in two fixations under the driving of respective driving means Slide on block, thus clamping or unclamping positioned at each the first clamp port and the workpiece in the second corresponding clamp port.

Further, aforesaid lathe pneumatic gripping device, wherein, the structure of each driving means is：It is fixedly installed Cylinder on base, the extension bar of cylinder is connected with respective moving jaw, and moving jaw can press from both sides under the driving of cylinder Tight or unclamp positioned at each the first clamp port and the workpiece in the second corresponding clamp port.

Further, aforesaid lathe pneumatic gripping device, wherein, is provided with inwardly in the inner side of each fixed block Recessed chute, is respectively arranged with outwardly slide block in the both sides of two moving jaws, and each slide block is respectively arranged on In corresponding chute and each slide block can slide in corresponding chute.

The invention has the beneficial effects as follows：Workpiece more firmly can be clamped by the first clamp port and the second clamp port, And be not in the phenomenon that surface of the work is weighed wounded in clamping process.

Brief description

Fig. 1 is the structural representation of the external fixator clip described in background technology.

Fig. 2 is the structural representation of lathe pneumatic gripping device of the present invention.

Fig. 3 is the structural representation of regular jaw in Fig. 2.

Fig. 4 is the structural representation of moving jaw in Fig. 2.

Specific embodiment

Below in conjunction with the accompanying drawings and preferred embodiment is described in further detail to technical solutions according to the invention.

As shown in Figure 2, Figure 3, Figure 4, lathe pneumatic gripping device of the present invention, including being fixedly installed on lathe worker Base 2 in station, is provided with two fixed blocks be arrangeding in parallel 3 on base 2, and regular jaw 4 is located at two fixed blocks 3 Middle part and its two ends respectively fixation be shelved on two fixed blocks 3, two the first grip blocks 41 are provided with regular jaw 4, Two the first grip blocks 41 stretch out the both sides of regular jaw 4 respectively, are evenly arranged with some energy clampings on each grip block 41 First clamp port 42 of workpiece 7, the Internal periphery of each the first clamp port 42 all in the workpiece 7 in the first clamp port 42 The consistent U-shaped of outline, the first clamp port 42 setting quantity is decided according to the actual requirements；On two fixed blocks 3, it is located at admittedly Determine jaw 4 both sides and be movably set with a moving jaw 5 respectively, each moving jaw 5 is provided with one protruding The second grip block 51, each second grip block 51 is provided with some can clamping workpieces 7 the second clamp port 52, each The Internal periphery of the second clamp port 52 all in the circular arc consistent with the outline of the workpiece 7 in the second clamp port 52, often Individual first clamp port 42 is all corresponding with second clamp port 52；Each moving jaw 5 is all connected with driving means 6 Connect, two moving jaws 5 can slide under the driving of respective driving means 6 on two fixed blocks 3, thus clamping or unclamping Positioned at each first clamp port 42 and the workpiece in the second corresponding clamp port 52.In actual production processing, in the second folder Hold and segmentation grip block 53 is provided with block 51, each segmentation grip block 53 is evenly arranged with the second of some energy clamping workpieces Clamp port 52, each second clamp port 52 is corresponding with first clamp port 42 respectively, and segmentation grip block 53 passes through locking screw Bolt is locked on the second grip block 51.

In the present embodiment, the structure of each driving means is：It is fixedly installed on the cylinder 6 on base 2, the stretching out of cylinder 6 Bar is connected with respective moving jaw 5, and moving jaw 5 can clamp under the driving of cylinder 6 or unclamp positioned at each the first folder Hold mouth 42 and the workpiece 7 in the second corresponding clamp port 52.

In the present embodiment, it is provided with, in the inner side of each fixed block 3, the chute 31 being inwardly recessed, in two moving jaws 5 both sides are respectively arranged with outwardly slide block, and each slide block is respectively arranged in corresponding chute 31 and each cunning Block can slide in corresponding chute 31, so that moving jaw 5 can more smoothly slide on fixed block 3.

The invention has the beneficial effects as follows：Work can more firmly be clamped by the first clamp port 42 and the second clamp port 52 Part 7, and be not in the phenomenon that surface of the work is weighed wounded in clamping process.

Claims

1. lathe pneumatic gripping device, including the base being fixedly installed on platen it is characterised in that：On base It is provided with two fixed blocks be arrangeding in parallel, regular jaw is located at the middle part of two fixed blocks and its two ends and fixes respectively and be shelved on On two fixed blocks, two the first grip blocks are provided with regular jaw, two the first grip blocks stretch out regular jaw respectively Both sides, each grip block is evenly arranged with some can clamping workpieces the first clamp port, each the first clamp port interior Profile is all consistent with the workpiece outline in the first clamp port；On two fixed blocks, divide positioned at regular jaw both sides It is not movably set with a moving jaw, protruding second grip block is provided with each moving jaw, every Be evenly arranged with individual second grip block some can clamping workpieces the second clamp port, the Internal periphery of each the second clamp port all with Workpiece outline in the second clamp port is consistent；Each moving jaw is all connected with driving means, two work Movable clamp port can under the driving of respective driving means on two fixed blocks slide, thus clamping or unclamp positioned at each first Clamp port and the workpiece in the second corresponding clamp port, are provided with segmentation grip block, in each segmentation on the second grip block Second clamp port of some energy clamping workpieces is evenly arranged with grip block, each second clamp port is clamped with one first respectively Mouth is corresponding, and segmentation grip block is locked on the second grip block by clamping screw.

2. according to the lathe pneumatic gripping device described in claim 1 it is characterised in that：The structure of each driving means is： It is fixedly installed on the cylinder on base, the extension bar of cylinder is connected with respective moving jaw, and moving jaw can be in cylinder Clamp under driving or unclamp positioned at each the first clamp port and the workpiece in the second corresponding clamp port.

3. according to the lathe pneumatic gripping device described in claim 1 or 2 it is characterised in that：Inner side in each fixed block It is provided with the chute being inwardly recessed, be respectively arranged with outwardly slide block in the both sides of two moving jaws, each slide block Respectively it is arranged in corresponding chute and each slide block can slide in corresponding chute.