CN111975027A - An inner support chuck device - Google Patents

Abstract

The invention relates to the technical field of machine tool clamps, in particular to an inner support chuck device, comprising a mounting seat, an inner support chuck, a telescopic mechanism and a rotating mechanism, and the inner support chuck includes a plug screw, a tensioning jaw and a hollow A collet seat, the plug screw is fixed at one end of the telescopic mechanism, there is a gap between the plug screw and the end of the telescopic mechanism, the tensioning jaw is hinged with the hollow chuck seat, and the tensioning jaw is The tail of the clamping jaw protrudes into the gap, and the head of the tensioning jaw is located in the hollow part of the hollow chuck seat. When the telescopic mechanism pushes the plug to hit the screw, the head of the tensioning jaw in the hollow chuck seat The hollow part is extended to clamp the workpiece to be processed; the rotating mechanism drives the inner support chuck to rotate, and the present invention can solve the problem of poor compatibility of the chuck in the prior art.

Description

An inner support chuck device

technical field

The invention relates to the technical field of machine tool clamps, in particular to an inner support chuck device.

Background technique

In the production process of the enterprise, we will often use a large number of various fixtures. The use of these fixtures will greatly improve the work efficiency and efficiency, and the positioning accuracy of the workpiece will also be greatly improved, reducing a large number of manpower requirements. Development has played a very good role in promoting.

At present, many tubular parts need to go through multiple processes such as turning, milling, planing, and grinding in their production process. In these manufacturing processes, it is often necessary to use a fixture to complete the positioning and clamping of the parts to be processed. The traditional clamps mostly use spring chucks to clamp the workpiece. The spring chucks have poor compatibility. Different chucks need to be replaced for parts with different inner diameters, and each time the chuck is replaced, it needs to be debugged again, which wastes a lot of time.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an inner support chuck device to solve the problem of poor compatibility of the chuck in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: an inner support chuck device, comprising a mounting seat, an inner support chuck, a telescopic mechanism and a rotating mechanism, and the inner support chuck includes a plug screw, a tensioning jaw and the hollow chuck seat, the plug screw is fixed at one end of the telescopic mechanism, there is a gap between the plug screw and the end of the telescopic mechanism, the tensioning jaw is hinged with the hollow chuck seat, and the tension The tail of the clamping jaw extends into the gap, and the head of the tensioning jaw is located in the hollow part of the hollow chuck seat. The head protrudes from the hollow part to clamp the workpiece to be processed; the rotating mechanism drives the inner support chuck to rotate.

Preferably, the telescopic mechanism includes a telescopic cylinder, a pull rod and a connecting mechanism, one end of the connecting mechanism is rotatably sleeved on the piston rod of the telescopic cylinder, and the other end of the connecting mechanism is fixedly connected with the pull rod.

Preferably, the connecting mechanism includes a first connecting seat and a second connecting seat, the first connecting seat is sleeved on the outside of the piston rod of the telescopic cylinder, and the first connecting seat is fixedly connected with the second connecting seat.

Preferably, the rotating mechanism includes a motor and a pulley, a hollow flange shaft is sleeved on the outside of the tie rod, the pulley is threadedly connected to one end of the hollow flange shaft, and the other end of the hollow flange shaft is connected to the hollow flange shaft. The collet seat is fixedly connected, the motor drives the pulley to rotate, and the pulley drives the hollow flange shaft, the connecting mechanism, the pull rod and the inner support collet to rotate.

Preferably, it also includes a rotation stop pin, the telescopic cylinder is mounted on a cylinder mounting plate of the mounting base, and the rotation stop pin passes through the cylinder mounting plate and is inserted into the rotation stop hole on the first connection base The rotation of the first connecting seat is restricted.

Compared with the prior art, the beneficial effects of the present invention are: the inner support chuck device provided by the present application is simple to operate, compatible with the clamping of similar products, and reduces the work intensity and debugging time; it has a back-pulling effect, which can make the workpiece more flexible. Fitting the reference surface, the positioning effect is significantly improved.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a cross-sectional view of the structure of the present invention when the inner support chuck is in a tensioned state;

Figure 3 is a cross-sectional view of the structure of the present invention when the inner support chuck is released.

In the picture: 1 mounting seat, 101 cylinder mounting plate, 2 inner support chuck, 201 plug screw, 202 tensioning jaw, 203 hollow chuck seat, 3 telescopic mechanism, 301 telescopic cylinder, 302 pull rod, 303 first connection seat, 304 second connecting seat, 4 rotating mechanism, 401 pulley, 5 hollow flange shaft, 6 anti-rotation pin shaft.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-3, the present invention provides a technical solution: an inner support chuck device, including a mounting seat 1, an inner support chuck 2, a telescopic mechanism 3 and a rotating mechanism 4, and the telescopic mechanism 3 and the rotating mechanism 4 are installed On the mounting seat 1, the inner support chuck 2 includes a plug screw 201, a tensioning jaw 202 and a hollow chuck seat 203. The plug screw 201 is fixed at one end of the telescopic mechanism 3, and the plug screw 201 is connected to the telescopic mechanism 3. There is a gap at the end, the tensioning jaw 202 is hinged with the hollow chuck seat 203, the tail of the tensioning jaw 202 protrudes into the gap, and the head of the tensioning jaw 202 is located in the hollow part of the hollow chuck seat 203, which can be extended and retracted. When the mechanism 3 pushes the plug screw 201, the head of the tensioning jaw 202 in the hollow chuck seat 203 protrudes out of the hollow part to support and clamp the workpiece to be processed. The clamping jaws 202 can exert a back-pulling force on the workpiece, so that the workpiece is more in line with the reference surface, and the positioning effect is significantly improved.

Specifically, the telescopic mechanism 3 includes a telescopic cylinder 301, a pull rod 302 and a connecting mechanism. The telescopic cylinder 301 is mounted on the cylinder mounting plate 101 of the mounting base 1, and one end of the connecting mechanism is rotatably sleeved on the piston rod of the telescopic cylinder 301, and is connected to The other end of the mechanism is fixedly connected with the pull rod 302. The connecting mechanism includes a first connecting seat 303 and a second connecting seat 304. The first connecting seat 303 is sleeved on the outside of the piston rod of the telescopic cylinder 301, and the first connecting seat 303 is connected with the second connecting seat 303. The seat 304 is fixedly connected.

Further, the rotating mechanism 4 includes a motor (not shown) and a pulley 401, the outside of the pull rod 302 is covered with a hollow flange shaft 5, the pulley 401 is threadedly connected to one end of the hollow flange shaft 5, and the hollow flange shaft 5 is threaded. The other end is fixedly connected with the hollow chuck seat 203, the motor drives the pulley 401 to rotate, and when the pulley 401 drives the hollow flange shaft 5 and the connecting mechanism to rotate, the hollow chuck seat 203 also rotates with the hollow flange shaft 5, so that the The pull rod 302 and the inner support chuck 2 rotate.

Preferably, the inner support chuck 2 provided in the present application further includes a rotation stop pin 6, and when no rotation is required, the rotation stop pin 6 is inserted through the cylinder mounting plate 101 of the mounting base 1 into the rotation stop on the first connecting base 303 The first connecting seat 303, the second connecting seat 304 and the inner support chuck 2 are restricted from rotating in the hole, so as to prevent the inner support chuck 2 from driving the workpiece to rotate when the workpiece is processed. The left and right movement, that is, does not affect the tensioning and loosening of the inner support chuck 2.

Working principle: Before use, as shown in Figure 2, insert the hollow chuck seat 203 into the cavity of the workpiece, and the telescopic cylinder 301 pushes the connecting mechanism and the pull rod 302 so that the tensioning jaw 202 extends out of the hollow chuck seat 203 and the inner wall of the workpiece. contact, and then the workpiece is supported and clamped; during processing, the motor drives the pulley 401 to rotate, so that the workpiece clamped by the support also rotates with the inner support chuck 2 . After the processing is completed, as shown in FIG. 3 , the telescopic cylinder 301 drives the connecting mechanism and the pull rod 302 to retract back, the tensioning jaw 202 rotates and retracts, no longer protrudes from the hollow chuck seat 203 , and the workpiece is released.

The device of the inner support chuck 2 provided by the application is simple to operate, compatible with the clamping of similar products, reducing the work intensity and debugging time; it has a back-pulling effect, which can make the workpiece fit the reference plane better, and the positioning effect is significantly improved.

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

Claims (5)

1. The utility model provides an internal stay chuck device, includes mount pad (1), internal stay chuck (2), telescopic machanism (3) and rotary mechanism (4), its characterized in that: the inner supporting chuck (2) comprises a driving screw (201), a tensioning clamping jaw (202) and a hollowed-out chuck seat (203), the driving screw (201) is fixed at one end of the telescopic mechanism (3), a gap is reserved between the driving screw (201) and the end of the telescopic mechanism (3), the tensioning clamping jaw (202) is hinged to the hollowed-out chuck seat (203), the tail of the tensioning clamping jaw (202) extends into the gap, the head of the tensioning clamping jaw (202) is located at the hollowed-out part of the hollowed-out chuck seat (203), and when the telescopic mechanism (3) pushes the driving screw (201), the head of the tensioning clamping jaw (202) in the hollowed-out chuck seat (203) extends out of the hollowed-out part to support and clamp a workpiece to be machined; the rotating mechanism (4) drives the inner support chuck (2) to rotate.

2. An internal bracing chuck assembly according to claim 1, wherein: telescopic machanism (3) are including telescopic cylinder (301), pull rod (302) and coupling mechanism, coupling mechanism's one end rotationally the suit is on telescopic cylinder's (301) piston rod, coupling mechanism's the other end and pull rod (302) fixed connection.

3. An internal bracing chuck assembly according to claim 2, wherein: the connecting mechanism comprises a first connecting seat (303) and a second connecting seat (304), the first connecting seat (303) is sleeved outside a piston rod of the telescopic cylinder (301), and the first connecting seat (303) is fixedly connected with the second connecting seat (304).

4. An internal bracing chuck assembly according to claim 3, wherein: rotary mechanism (4) include motor and band pulley (401), the outside cover of pull rod (302) has hollow flange axle (5), the one end threaded connection of band pulley (401) and hollow flange axle (5), the other one end and fretwork chuck seat (203) fixed connection of hollow flange axle (5), motor drive band pulley (401) are rotatory, band pulley (401) drive hollow flange axle (5), coupling mechanism, pull rod (302) and interior support chuck (2) are rotatory.

5. An internal bracing chuck assembly according to claim 4, wherein: still including spline round pin axle (6), telescopic cylinder (301) are installed on cylinder mounting panel (101) of mount pad (1), spline round pin axle (6) are passed cylinder mounting panel (101) are inserted the downthehole restraint of spline on first connecting seat (303) is rotatory first connecting seat (303).

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