CN218397812U

CN218397812U - Mechanical fixture

Info

Publication number: CN218397812U
Application number: CN202222851953.1U
Authority: CN
Inventors: 万佳龙; 李明阳; 王恩泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-01-31
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a machinery type anchor clamps relates to the anchor clamps field, including the station seat, the station seat internal rotation is connected with the screw rod, there are two removal seats, every in the outside of screw rod through threaded connection fixed connection has the guide block on removing the seat, guide block and station seat sliding connection, the top fixedly connected with holder of guide block, the holder with station seat sliding connection, be provided with self-adaptation mechanism on the holder. Through setting up self-adaptation mechanism on the holder, set up the sliding pin that stretches out and draws back through first spring among the self-adaptation mechanism, set up the clamp splice that accessible ball axle carried out certain limit and deflect on the sliding pin moreover, when carrying out the centre gripping to the work piece, the clamp splice passes through the ball axle after deflecting, can laminate as far as with the surface of anomalous work piece, the clamp splice of different positions is also different through the gliding distance of sliding pin moreover to make whole centre gripping that can be better to the work piece on different and anomalous surface.

Description

Mechanical fixture

Technical Field

The utility model relates to an anchor clamps field especially relates to a machinery type anchor clamps.

Background

The fixture is a device for fixing a processing object to enable the processing object to occupy a correct position in a mechanical manufacturing process so as to receive construction or detection, for example, the invention application with application publication number CN107671 a discloses a mechanical fixture, which comprises a base, wherein a fixed clamping table is fixedly connected to the upper end of the base, a plurality of pillars are fixedly connected to the upper end of the base, a top plate is fixedly connected to the upper ends of the pillars, a movable clamping table is arranged at the upper end of the fixed clamping table, two first fixed rotating blocks are fixedly connected to the lower end of the top plate, two second fixed rotating blocks are fixedly connected to the upper end of the movable clamping table, a first connecting rod is rotatably connected to the two first fixed rotating blocks, a second connecting rod is rotatably connected to the two second fixed rotating blocks, a threaded rod is arranged between the top plate and the movable clamping table, a first movable rotating block is sleeved on one end side wall of the threaded rod, the threaded rod is rotatably connected to the first movable rotating block, and two first limiting rings are fixedly sleeved on the threaded rod. However, most of the existing mechanical clamps rely on the screw movement of the screw to realize clamping, but the screw thread part of the screw bears excessive force and is easy to loosen after long-time use, so that the clamping stability of the workpiece is lost, and when the existing clamps clamp workpieces with irregular outer surfaces, the surface contact surface of the clamps and the workpiece is small, and the clamping stability is not stable enough. Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a machinery type anchor clamps has solved current machinery type anchor clamps and has mostly relied on the screw motion of screw rod to realize the centre gripping, but the screw thread portion of screw rod has born too big power, uses for a long time easily not hard up to lead to losing stability to the centre gripping of work piece, when current anchor clamps carry out the centre gripping to the work piece of some irregular surfaces moreover, the surface contact face of anchor clamps and work piece is less, the not stable technical problem inadequately of centre gripping.

In order to solve the technical problem, the utility model provides a pair of machinery type anchor clamps, including the station seat, the station seat internal rotation is connected with the screw rod, there are two removal seats, every in the outside of screw rod through threaded connection fixedly connected with guide block on the removal seat, guide block and station seat sliding connection, the top fixedly connected with holder of guide block, the holder with station seat sliding connection, be provided with self-adaptation mechanism on the holder, fixedly connected with carousel on the screw rod, fixedly connected with bull stick on the carousel, set up locking mechanism that moves on the carousel.

Preferably, the station seat is welded with an installation lug, and the installation lug is provided with a bolt hole. Through the design of installation ear, be convenient for wholly install on the station through the bolt.

Preferably, the self-adaptation mechanism includes sliding pin, first spring, ball axle, clamp splice, cushion, spacing lid and buckle, sliding connection has a plurality of evenly distributed's sliding pin in the holder, every swing joint has the ball axle in the sliding pin, fixedly connected with clamp splice on the ball axle, the surface bonding of clamp splice has the cushion, be provided with first spring in the holder, the one end of first spring with sliding pin fixed connection, the other end fixed connection of first spring is in the internal surface of holder. Through the design of the self-adaptive mechanism, the workpiece with the irregular surface can be effectively clamped.

Preferably, the outside swing joint of ball axle has spacing lid, spacing lid with the sliding pin contact, fixedly connected with buckle is covered to the spacing, the buckle with the sliding pin joint. Through the design of spacing lid, be convenient for the installation of ball axle on the sliding pin.

Preferably, locking mechanism includes locating pin, locating hole, fender ring, second spring and pull ring, sliding connection has the locating pin in the carousel, the locating pin with station seat sliding connection, fixedly connected with keeps off ring and pull ring on the locating pin, keep off the ring with the station seat contact, the outside of locating pin is provided with the second spring, the one end of second spring with keep off ring fixed connection, the other end of second spring with carousel fixed connection. Through the design of the anti-loosening mechanism, the anti-loosening mechanism has an anti-loosening effect on the screw rod.

Preferably, the surface of the station seat is provided with a plurality of positioning holes distributed in an array manner, and the positioning holes are in sliding connection with the positioning pins. Through the design of locating hole, with the locating pin cooperation, have the positioning action to the carousel.

Compared with the prior art, the utility model provides a pair of machinery type anchor clamps have following beneficial effect:

the utility model provides a machinery type anchor clamps, through setting up self-adaptation mechanism on the holder, set up the sliding pin that stretches out and draws back through first spring among the self-adaptation mechanism, set up the clamp splice that accessible ball axle carried out certain limit and deflect on the sliding pin moreover, when carrying out the centre gripping to the work piece, the clamp splice is through the ball axle back of deflecting, can laminate as far as with the surface of anomalous work piece, and the clamp splice of different positions is also different through the gliding distance of sliding pin, thereby make whole centre gripping that can be better to different and anomalous surface's work piece.

The utility model provides a machinery type anchor clamps, through set up locking moving mechanism on the carousel at original screw rod, wherein set up the locating hole that round array distributes on the station seat, and set up the locating pin that extends and contracts through the second spring on the carousel, the size and the locating hole matching of locating pin, drive the screw rod through the carousel like this and rotate the back, can cooperate through locating pin and the locating hole that corresponds the position, thereby carry on spacingly to the carousel, it can not become flexible to have guaranteed the screw rod, further guaranteed the stability to the work piece centre gripping.

Drawings

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

fig. 2 is a front cross-sectional view of the present invention in fig. 1;

FIG. 3 is an enlarged view of the point A of FIG. 2 according to the present invention;

fig. 4 is a top view of the station base of fig. 2 according to the present invention.

Reference numbers in the figures: 1. a station seat; 2. a screw; 3. a movable seat; 4. a guide block; 5. a holder; 6. an adaptive mechanism; 7. a turntable; 8. a rotating rod; 9. an anti-loosening mechanism; 10. mounting ears; 61. a slide pin; 62. a first spring; 63. a ball shaft; 64. a clamping block; 65. a rubber pad; 66. a limiting cover; 67. buckling; 91. positioning pins; 92. positioning holes; 93. a baffle ring; 94. a second spring; 95. and (4) a pull ring.

Detailed Description

Please refer to fig. 1, fig. 2, fig. 4, a machinery type anchor clamps, including

station seat

1, 1 internal rotation in station seat is connected with screw rod 2, there are two removal seats 3 outside of screw rod 2 through threaded connection, fixedly connected with guide block 4 on every removal seat 3, guide block 4 and station seat 1 sliding connection, top fixedly connected with holder 5 of guide block 4, holder 5 and station seat 1 sliding connection, be provided with self-adaptation mechanism 6 on the holder 5, fixedly connected with carousel 7 on the screw rod 2, fixedly connected with bull stick 8 on the carousel 7, set up locking mechanism 9 on the carousel 7, the welding has installation ear 10 on station seat 1, the bolt hole has been seted up on installation ear 10, through the design of installation ear 10, be convenient for wholly install on the station through the bolt.

Referring to fig. 1, 2 and 3, the adaptive mechanism 6 includes a sliding pin 61, a first spring 62, a ball shaft 63, a clamping block 64, a rubber pad 65, a limiting cover 66 and a buckle 67, the clamping base 5 is slidably connected with a plurality of sliding pins 61 which are uniformly distributed, the ball shaft 63 is movably connected in each sliding pin 61, the clamping block 64 is fixedly connected to the ball shaft 63, the rubber pad 65 is bonded to the surface of the clamping block 64, the limiting cover 66 is movably connected to the outside of the ball shaft 63, the limiting cover 66 is in contact with the sliding pin 61, the buckle 67 is fixedly connected to the limiting cover 66, the buckle 67 is clamped with the sliding pin 61, the ball shaft 63 is conveniently mounted on the sliding pin 61 through the design of the limiting cover 66, the first spring 62 is arranged in the clamping base 5, one end of the first spring 62 is fixedly connected with the sliding pin 61, the other end of the first spring 62 is fixedly connected to the inner surface of the clamping base 5, and the design of the adaptive mechanism 6 can effectively clamp workpieces with irregular surfaces.

Referring to fig. 1 and 2, the anti-loosening mechanism 9 includes a positioning pin 91, a positioning hole 92, a retaining ring 93, a second spring 94 and a pull ring 95, the positioning pin 91 is slidably connected in the rotary table 7, the positioning pin 91 is slidably connected with the station seat 1, the surface of the station seat 1 is provided with the positioning holes 92 distributed in a plurality of arrays, the positioning holes 92 are slidably connected with the positioning pin 91, the positioning hole 92 is matched with the positioning pin 91 through the design of the positioning hole 92, and has a positioning function on the rotary table 7, the positioning pin 91 is fixedly connected with the retaining ring 93 and the pull ring 95, the retaining ring 93 is in contact with the station seat 1, the second spring 94 is arranged outside the positioning pin 91, one end of the second spring 94 is fixedly connected with the retaining ring 93, and the other end of the second spring 94 is fixedly connected with the rotary table 7. Through the design of the anti-loosening mechanism 9, the screw rod 2 has the anti-loosening function.

The working principle is as follows: when the clamping device is used, a workpiece is normally placed on the station base 1 and located at a position between the two clamping bases 5, then the pull ring 95 is pulled, the pull ring 95 drives the positioning pin 91 to move, the positioning pin 91 compresses the second spring 94 through the baffle ring 93, and the positioning pin 91 leaves from the current positioning hole 92 on the station base 1 at the moment, so that the limitation on the rotary table 7 is removed, then the rotary table 7 can be driven to rotate through the rotary rod 8, the rotary table 7 can drive the screw rod 2 to rotate, at the moment, the movable base 3 generates transverse displacement through the thread motion between the movable base 3 and the screw rod 2, then the movable base 3 drives the clamping bases 5 to move through the guide blocks 4, then the clamping blocks 64 firstly abut against the surface of the workpiece, and deflect through the ball shafts 63 in a self-adaptive manner according to the shape of the surface of the workpiece, so that the surface of the workpiece is better attached to the surface of the workpiece, so that the sliding pin 61 slides in the clamping bases 5 and compresses the first spring 62, the clamping blocks 64 at different positions move, and can better clamp the workpiece with different and irregular displacement amount;

in addition, to the work piece centre gripping back, need loosen pull ring 95, second spring 94 drives locating pin 91 through retaining ring 93 and resets this moment to reset locating pin 91 in the locating hole 92 that corresponds on station seat 1, thereby spacing carousel 7, guaranteed that screw rod 2 can not become flexible, further guaranteed the stability to the work piece centre gripping.

Claims

1. The utility model provides a machinery class anchor clamps, includes station seat (1), its characterized in that, station seat (1) internal rotation is connected with screw rod (2), there are two removal seats (3), every in the outside of screw rod (2) through threaded connection move fixedly connected with guide block (4) on seat (3), guide block (4) and station seat (1) sliding connection, top fixedly connected with holder (5) of guide block (4), holder (5) with station seat (1) sliding connection, be provided with self-adaptation mechanism (6) on holder (5), fixedly connected with carousel (7) are gone up in screw rod (2), fixedly connected with bull stick (8) are gone up in carousel (7), set up locking mechanism (9) on carousel (7).

2. The mechanical clamp as claimed in claim 1, wherein a mounting lug (10) is welded on the station base (1), and a bolt hole is formed in the mounting lug (10).

3. The mechanical fixture according to claim 1, wherein the adaptive mechanism (6) comprises a sliding pin (61), a first spring (62), a ball shaft (63), a clamping block (64), a rubber pad (65), a limiting cover (66) and a buckle (67), the sliding pin (61) is connected in the clamping seat (5) in a sliding manner, the ball shaft (63) is movably connected in each sliding pin (61), the clamping block (64) is fixedly connected to the ball shaft (63), the rubber pad (65) is bonded to the surface of the clamping block (64), the first spring (62) is arranged in the clamping seat (5), one end of the first spring (62) is fixedly connected with the sliding pin (61), and the other end of the first spring (62) is fixedly connected to the inner surface of the clamping seat (5).

4. A mechanical clamp according to claim 3, wherein a limiting cover (66) is movably connected to the outside of the ball shaft (63), the limiting cover (66) is in contact with the sliding pin (61), a buckle (67) is fixedly connected to the limiting cover (66), and the buckle (67) is clamped with the sliding pin (61).

5. The mechanical fixture according to claim 1, wherein the anti-loosening mechanism (9) comprises a positioning pin (91), a positioning hole (92), a stop ring (93), a second spring (94) and a pull ring (95), the positioning pin (91) is slidably connected in the rotary table (7), the positioning pin (91) is slidably connected with the work station seat (1), the stop ring (93) and the pull ring (95) are fixedly connected to the positioning pin (91), the stop ring (93) is in contact with the work station seat (1), the second spring (94) is arranged outside the positioning pin (91), one end of the second spring (94) is fixedly connected with the stop ring (93), and the other end of the second spring (94) is fixedly connected with the rotary table (7).

6. The mechanical fixture as claimed in claim 5, wherein the surface of the station base (1) is provided with a plurality of positioning holes (92) distributed in an array, and the positioning holes (92) are slidably connected with the positioning pins (91).