CN209969610U

CN209969610U - Hydraulic two-claw tensioner

Info

Publication number: CN209969610U
Application number: CN201920602850.7U
Authority: CN
Inventors: 汪东阳; 王家勇
Original assignee: Cowes Special Vehicle Bridge In Chengdu Manufactures Co Ltd
Current assignee: Cowes Special Vehicle Bridge In Chengdu Manufactures Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-21
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a two claw of hydraulic pressure rises and tightly rises ware, including the hydro-cylinder and the anchor clamps body, be equipped with two voussoirs in the anchor clamps body, two voussoirs are located the specific axis both sides of anchor clamps respectively to the voussoir homoenergetic removes in the anchor clamps body, the specific both sides of anchor clamps all are equipped with the ejector pin, and the ejector pin inserts to the anchor clamps internal, and the one end and the voussoir of ejector pin are connected, and the voussoir can promote the ejector pin and stretch out from the anchor clamps internal, still is equipped with ejector pin spare on the other end of ejector pin, still be equipped with the ejection head on the output of hydro-cylinder, the one end and the hydro-cylinder of ejection head are connected, and the other. The utility model discloses can realize the centre gripping of taking the hole work piece fast to guarantee work piece and anchor clamps axiality.

Description

Hydraulic two-claw tensioner

Technical Field

The utility model relates to a machine part adds clamping apparatus, concretely relates to two claw of hydraulic pressure tight wares that rise.

Background

In the actual production process of mechanical parts, a plurality of workpieces with holes are machined, the workpieces are clamped through the inner diameters of the tensioning workpieces for further machining, a fixed structure is often adopted when the clamps are used for clamping the parts in the past, the clamping is difficult to take down, the time and the labor are wasted, and the efficiency is low. In addition, a large coaxiality error exists in the clamping process, so that parts are scrapped due to out-of-tolerance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough among the prior art, aim at provides a two claw of hydraulic pressure rises and tightly rises ware, can carry out the centre gripping to foraminiferous spare part fast to guarantee the axiality of spare part and anchor clamps.

The utility model discloses a following technical scheme realizes:

the utility model provides a two claw of hydraulic pressure rises and tightly rises ware, includes the hydro-cylinder and the anchor clamps body, be equipped with two voussoirs in the anchor clamps body, two voussoirs are located anchor clamps body axis both sides respectively to the voussoir homoenergetic removes in the anchor clamps body, the anchor clamps body both sides all are equipped with the ejector pin, and the ejector pin inserts to the anchor clamps internal, and the one end and the voussoir of ejector pin are connected, and the voussoir can promote the ejector pin and stretch out from the anchor clamps internal, still is equipped with ejector pin on the other end of ejector pin, still be equipped with the liftout head on the output of hydro-cylinder, the one end and the hydro-cylinder of liftout head are connected.

Furthermore, the oil cylinder is further provided with a stable seat and a plurality of inner hexagon bolts, the stable seat is fixed on the oil cylinder through the inner hexagon bolts, and the output end of the oil cylinder penetrates through the stable seat.

Furthermore, a spacer bush is arranged on the stable seat, and the ejection head is positioned in the spacer bush.

Further, still be equipped with the bottom plate in the spacer sleeve, the one end and the anchor clamps body coupling of bottom plate, the other end is connected with steady seat, the ejector head runs through the bottom plate to the ejector head can remove in the bottom plate.

Further, a base plate is arranged between the spacer bush and the clamp body, and the base plate is sleeved on the bottom plate.

Furthermore, two elastic pieces are arranged in the clamp body, the elastic pieces are respectively sleeved on the two ejector rods, and when the wedge block moves towards the direction of the ejector piece, the wedge block can compress the elastic pieces.

Furthermore, the contact surface between the wedge block and the ejector head is an inclined surface, and the included angle between the inclined surface and the central axis of the ejector rod is 10 degrees.

Furthermore, all be equipped with the connecting plate on the top tight piece, connecting plate one end cover is equipped with the follower rod on the top tight piece on the other end to the follower rod inserts to the anchor clamps internal, and the follower rod can remove in the anchor clamps body.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model relates to a hydraulic two-jaw tensioner, when clamping the mechanical workpiece with hole, stretch the fixture body into the hole of spare part, utilize the hydro-cylinder drive ejector pin to stretch into the fixture body, push the voussoir of both sides to move when the ejector pin moves, the voussoir promotes the ejector pin motion, the tight piece of top that is connecting on the ejector pin outwards rises the tight work piece, realize the quick centre gripping to the work piece;

2. the utility model relates to a hydraulic two-jaw tensioner, because the ejector head forces the voussoir to move the same distance in the moving process, thereby guaranteed that two ejector pieces are the same with the interval between the ejector head, and then make the ejector head be located the axis in work piece hole, guaranteed the axiality of anchor clamps and work piece hole, improved the machining precision to the work piece;

3. the utility model relates to a two claw of hydraulic pressure tight rises ware that rises, the follower rod of setting can move along with the ejector pin, can increase the stability of ejector pin to guarantee that tight pole moving direction is unchangeable in the top, remove along linear direction all the time, improved the stability of anchor clamps.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

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

fig. 2 is a schematic view of the internal structure of the present invention.

Reference numbers and corresponding part names in the drawings:

1-oil cylinder, 2-hexagon socket head cap screw, 3-stable seat, 4-spacer bush, 5-clapboard, 6-connecting plate, 7-follower rod, 8-elastic piece, 9-clamp body, 10-wedge block, 11-ejection head, 12-bottom plate, 13-ejector piece and 14-ejector rod.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

As shown in fig. 1 and 2, the hydraulic two-jaw tensioner of the present invention comprises an oil cylinder 1 and a clamp body 9, wherein a cavity is formed inside the clamp body 9, two wedges 10 are arranged in the cavity, the wedges 10 are respectively located on two sides of an axis of the clamp body 9, and the wedges 10 can move in the cavity of the clamp body 9, ejector rods 14 are respectively arranged on two sides of the clamp body 9, the ejector rods 14 are horizontally inserted into the clamp body 9, one end of each ejector rod 14 is connected with the wedge 10 in the cavity, when the wedges 10 move in the cavity of the clamp body 9, the wedges 10 push the ejector rods 14 to extend out of the clamp body 9, a tightening member 13 is further arranged at the other end of each ejector rod 14, the tightening member 13 can move together with the ejector rods 14, the tightening member 13 is arranged to act on a hole wall of a workpiece, two elastic members 8 are further arranged in the cavity of the clamp body 9, the elastic members 8 are springs, the elastic member 8 is sleeved on the ejector rod 14, the wedge block 10 can compress the elastic member 8 when acting force is applied on the wedge block 10 to force the wedge block 10 to move towards the ejector piece 13, and when the acting force on the wedge block 10 is removed, the elastic force generated by the elastic member 8 can force the wedge block 10 to move towards the initial position, so that the ejector piece 13 returns towards the clamp body 9.

The jacking rods 13 are respectively provided with a connecting plate 6, the connecting plates 6 are positioned on the outer sides of the clamp bodies 9, one end of each connecting plate 6 is sleeved on the jacking rod 13, the other end of each connecting plate 6 is provided with a follower rod 7, the follower rods 7 are horizontally inserted into the clamp bodies 9, and when the jacking rods 13 are driven by the ejector rods 14 to move, the follower rods 7 can move in the clamp bodies 9; the stability of ejector pin 14 can be increased to the follower rod 7 that sets up, guarantees simultaneously that top piece 13 is unchangeable at the in-process direction that removes, improves the holistic stability of anchor clamps.

The oil cylinder 1 is the prior art and can be purchased on the market, a stable seat 3 and four hexagon socket head bolts 2 are arranged on the oil cylinder 1, the stable seat 3 is fixed on the oil cylinder 1 through the arranged hexagon socket head bolts 2, the output end of the oil cylinder 1 is inserted on the stable seat 3, a spacer 4 is further arranged on the stable seat 3, the output end of the oil cylinder 1 is positioned in the spacer 4, a bottom plate 12 is arranged in the spacer 4, one end of the bottom plate 12 is fixed on the stable seat 3, the other end of the bottom plate is connected with a clamp body 9, an ejection head 11 is further arranged on the output end of the oil cylinder 1, the ejection head 11 is inserted in the bottom plate 12, when the oil cylinder 1 works, the ejection head 11 can be driven to move into a cavity of the clamp body 9 from the bottom plate 12, the contact surface of the ejection head 11 and the wedge block 10 is an inclined surface, and an included angle formed between the inclined surface and the central axis of the ejection head, when the ejector head 11 is inserted into the cavity of the clamp body 9, the inclined surface of the ejector head 11 can act on the inclined surface of the wedge block 10, so that the wedge block 10 is forced to move towards the direction of the ejector rod 13 in the cavity of the clamp body 9, and the ejector rod 13 can act on the hole wall of the workpiece to clamp the workpiece.

When the clamp is used, the clamp body 9 extends into a hole of a workpiece, the oil cylinder 1 is used for pushing the ejection head 11 to move, the wedge blocks 10 on two sides are ejected while the ejection head 11 moves, the wedge blocks 10 push the ejector rod 14 to move, the ejection pieces 13 connected to the ejector rod 14 outwards tension the workpiece, so that the workpiece is quickly clamped, and the ejection heads 11 and the wedge blocks 10 are the same in action distance, so that the two ejection pieces 13 extend out by the same distance, the ejection heads 11 are located at the circle center of the workpiece hole, the coaxiality of the clamp and the workpiece is ensured, and the machining precision of the workpiece is further improved; when the workpiece ejecting device is used up, the oil cylinder 1 drives the ejecting head 11 to retract, the elastic force generated by the elastic piece 8 forces the wedge block to move to the initial position, and then the acting force of the ejecting piece 13 on the wall of the hole of the workpiece is eliminated, and the workpiece is rapidly detached.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A hydraulic two-claw tensioner is characterized by comprising an oil cylinder (1) and a clamp body (9), two wedges (10) are arranged in the clamp body (9), the two wedges (10) are respectively positioned at two sides of the axis of the clamp body (9), the wedge block (10) can move in the clamp body (9), ejector rods (14) are arranged on two sides of the clamp body (9), the ejector rods (14) are inserted into the clamp body (9), one end of each ejector rod (14) is connected with the wedge block (10), the wedge block (10) can push the ejector rods (14) to extend out of the clamp body (9), and a jacking piece (13) is further arranged at the other end of each ejector rod (14), the output end of the oil cylinder (1) is also provided with an ejection head (11), one end of the ejection head (11) is connected with the oil cylinder (1), the other end of the ejection head can extend into the clamp body (9), and the wedge block (10) is pushed to move towards the direction of the ejection piece (13).

2. The hydraulic two-jaw tensioner according to claim 1, wherein the oil cylinder (1) is further provided with a stable base (3) and a plurality of hexagon socket head bolts (2), the stable base (3) is fixed on the oil cylinder (1) through the hexagon socket head bolts (2), and the output end of the oil cylinder (1) penetrates through the stable base (3).

3. The hydraulic two-jaw tensioner according to claim 2, wherein the stationary seat (3) is provided with a spacer (4), and the ejector head (11) is located in the spacer (4).

4. The hydraulic two-jaw tensioner according to claim 3, wherein a bottom plate (12) is further arranged in the spacer sleeve (4), one end of the bottom plate (12) is connected with the clamp body (9), the other end of the bottom plate is connected with the stable seat (3), the ejecting head (11) penetrates through the bottom plate (12), and the ejecting head (11) can move in the bottom plate (12).

5. The hydraulic two-jaw tensioner according to claim 4, characterized in that a backing plate (5) is further arranged between the spacer sleeve (4) and the clamp body (9), and the backing plate (5) is sleeved on the bottom plate (12).

6. A hydraulic two-jaw tensioner according to claim 1, characterized in that two elastic members (8) are provided in the clamp body (9), the elastic members (8) are respectively sleeved on the two carrier rods (14), and when the wedge block (10) moves towards the top clamping member (13), the wedge block (10) can compress the elastic members (8).

7. The hydraulic two-jaw tensioner according to claim 1, wherein the contact surface between the wedge (10) and the ejector head (11) is an inclined surface, and the included angle between the inclined surface and the central axis of the ejector rod (14) is 10 °.

8. The hydraulic two-jaw tensioner according to claim 1, characterized in that the top tightening member (13) is provided with a connecting plate (6), one end of the connecting plate (6) is sleeved on the top tightening member (13), the other end is provided with a follower rod (7), the follower rod (7) is inserted into the clamp body (9), and the follower rod (7) can move in the clamp body (9).