CN215921378U

CN215921378U - Quick press fitting clamp for press head

Info

Publication number: CN215921378U
Application number: CN202120207223.0U
Authority: CN
Inventors: 黄晓刚; 孙强
Original assignee: Shanghai GKN Huayu Driveline Systems Co Ltd
Current assignee: Shanghai GKN Huayu Driveline Systems Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-03-01
Anticipated expiration: 2031-01-25

Abstract

The utility model relates to a quick press-fitting clamp of a press head of a press, which is used for installing the press head on the press, and comprises a clamp body, a locking part and a fastening ring, wherein the clamp body is fixedly connected with the press, the clamp body is provided with a clamping cylinder, the peripheral surface of the clamping cylinder is provided with at least three limiting through holes communicated with an inner hole of the clamping cylinder, each limiting through hole is internally provided with the locking part, the inner side end and the outer side end of each locking part are respectively provided with a convex arc guide surface, the press head is provided with a connecting cylindrical part extending into the inner hole of the clamping cylinder, the peripheral surface of the connecting cylindrical part is provided with a circle of concave clamping grooves, the fastening ring is sleeved on the clamping cylinder, the fastening ring is pressed on the outer side end of the locking part to enable the inner side end of the locking part to be inserted into the concave clamping grooves, and the fastening ring can axially move along the clamping cylinder.

Description

Quick press fitting clamp for press head

Technical Field

The utility model relates to the field of clamping machinery, in particular to a rapid press-fitting clamp for a press head of a press.

Background

In pressure equipment, the pressure head generally uses modes such as tang location, bolt-up to connect on the press body, when the stronger production line of flexibility was used, often need frequently to trade the type, adopts conventional connected mode, when changing the pressure head, can be consuming time longer, work efficiency is low.

Disclosure of Invention

In view of the above disadvantages of the prior art, the present invention provides a quick press-fitting fixture for a press ram, which is convenient and flexible to assemble and disassemble and has high replacement efficiency.

In order to achieve the above object, the present invention provides a rapid press-fitting jig for a press ram, which is used for mounting the press ram on a press, the rapid press-fitting clamp comprises a clamp body, a locking part and a fastening ring, wherein the clamp body is fixedly connected with a press, the clamp body is provided with a clamping cylinder, at least three limiting through holes communicated with the inner holes of the clamping cylinder are arranged on the peripheral surface of the clamping cylinder, a locking piece is arranged in each limiting through hole, the inner side end and the outer side end of the locking piece are respectively provided with a convex arc guide surface, the pressure head is provided with a connecting cylindrical part extending into an inner hole of the clamping cylinder, a circle of concave clamping grooves are arranged on the peripheral surface of the connecting cylindrical part, the fastening ring is sleeved on the clamping cylinder, the fastening ring is pressed against the outer side end of the locking piece to enable the inner side end of the locking piece to be inserted into the concave clamping groove, and the fastening ring can move axially along the clamping cylinder.

Further, the locking member is composed of one or a plurality of abutted round beads.

Further, the ball is a steel ball.

Further, the inner hole surface of the fastening ring is provided with grooves near both ends.

Furthermore, the clamping device also comprises a baffle ring which is arranged on the peripheral surface of the clamping cylinder and is positioned below the fastening ring; the fastening ring lower extreme compresses tightly the retaining member when leaning on and keeping off the ring.

Furthermore, the limiting through holes in the clamping cylinder are circumferentially arranged in an array along the clamping cylinder.

Further, the outer peripheral surface of the fastening ring is a rough surface.

Furthermore, a first pressure surface facing downwards is arranged on the clamp body, and a second pressure surface facing upwards and opposite to the first pressure surface is arranged on the pressure head; when the first pressure surface abuts against the second pressure surface, the inner side end of the locking part aligns to the concave clamping groove, and a gap is formed between the inner side end of the locking part and the concave clamping groove in the axial direction of the connecting cylindrical part when the inner side end of the locking part is inserted into the concave clamping groove.

As mentioned above, the quick press-fitting clamp provided by the utility model has the following beneficial effects:

by arranging the clamp body, the locking part and the fastening ring, and arranging a circle of concave clamping grooves on the connecting cylindrical part of the pressure head, when clamping is carried out, the connecting cylindrical part at the upper end of the pressure head is inserted into an inner hole of a clamping cylinder, the concave clamping grooves are aligned with the locking part, the inner hole wall of the fastening ring is moved to be tightly pressed at the outer side end of the locking part, because the outer side end of the locking part is a convex arc guide surface, the fastening ring presses the inner side end of the locking part into the concave clamping grooves and presses the connecting cylindrical part from three directions, so that the axial position and the radial position of the pressure head are limited, and the pressure head is clamped in the clamp body through the locking part; when the pressure head needs to be detached, the fastening ring moves along the axial direction of the clamping cylinder, the pressing of the fastening ring on the locking piece is removed, the pressure head is pulled outwards from an inner hole of the clamping cylinder due to the fact that the inner side end of the locking piece is a convex arc guide surface, and the locking piece moves outwards, so that the pressure head can be taken out smoothly. The press fitting clamp disclosed by the utility model is simple in structure, convenient and flexible to install, high in replacement efficiency and capable of realizing quick replacement and installation of a pressure head.

Drawings

Fig. 1 is a schematic structural view of the rapid press-fitting jig of the present invention before assembly.

Fig. 2 is a half sectional view of fig. 1.

Fig. 3 is a schematic view showing the operation of the clamping ram of the quick press-fitting jig of the present invention.

Fig. 4 is an operational view of the unclamping ram of the quick press-fitting jig of the present invention.

Description of the element reference numerals

1 clamping tool body

11 clamping cylinder

12 limiting through hole

13 first pressure surface

2 fastening ring

21 groove

3 pressure head

31 connecting the cylindrical portions

32 concave clamping groove

33 second pressure surface

4 steel ball

5 baffle ring

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.

Referring to fig. 1 to 4, the present invention provides a rapid press-fitting jig of a press ram for mounting a ram 3 on a press, the rapid press-fitting jig including a jig body 1, a locking member, and a fastening ring 2, the jig body 1 being fixedly connected to the press (not shown in the drawings), the jig body 1 having a clamping cylinder 11, and the peripheral surface of the clamping cylinder 11 is provided with at least three limiting through holes 12 communicated with the inner hole, and all be equipped with the retaining member in every spacing through-hole 12, the inside and outside end of retaining member all is convex circular arc spigot surface, and pressure head 3 has and stretches into the connection cylindric portion 31 of pressing from both sides in the dress drum 11 hole, is equipped with round indent draw-in groove 32 on the connection cylindric portion 31 outer peripheral face, and tighrening ring 2 cup joints on pressing from both sides dress drum 11, and tighrening ring 2 presses the outside end of retaining member and makes the retaining member medial extremity insert in indent draw-in groove 32, tighrening ring 2 can be along pressing from both sides dress drum 11 axial displacement. The size and shape of the concave clamping groove 32 are matched with the shape and size of the inner side end of the locking part, so that the inner side of the locking part is clamped into the concave clamping groove 32 to change the limitation on the circumferential movement of the pressure head 3.

The basic working principle of the rapid press-fitting clamp provided by the utility model is as follows: the rapid press-fitting clamp is used for clamping a press head 3 without the requirement of circumferential position, when the clamping work is carried out, referring to fig. 3, a connecting cylindrical part 31 at the upper end of the press head 3 is inserted into an inner hole of a clamping cylinder 11, an inner concave clamping groove 32 is aligned with a locking part, the inner hole wall of a fastening ring 2 is moved to press against an arc guide surface at the outer side end of the locking part, the fastening ring 2 presses the inner side end of the locking part into the inner concave clamping groove 32 and presses the locking part, the locking part presses against the connecting cylindrical part 31 from at least three directions to lock the radial position of the press head 3 and limit the axial position of the press head 3, the press head 3 is clamped in a clamp body 1, the axial position of the press head 3 in the clamp body 1 can be locked, the press head can also have small displacement, the work of the press head 3 is not influenced when the press-fitting clamp has the press head 3 to press down an object, the clamp body 1 can transmit pressure to the pressure head 3 through the locking piece, and under the condition that the pressure which can be transmitted by the locking piece is insufficient, other pressure transmitting structures can be arranged between the clamp body 1 and the pressure head 3.

Thereby limiting the axial and radial positions of the pressure head 3, and locking the pressure head 3 in the clamp body 1 through the locking piece. Referring to fig. 3, when the pressing head 3 needs to be removed, the fastening ring 2 is moved along the axial direction of the clamping cylinder 11, the pressing of the fastening ring 2 on the locking member is released, the pressing head 3 is pulled outwards from the inner hole of the clamping cylinder 11 because the inner side end of the locking member is a convex arc guide surface, and the locking member moves outwards, so that the pressing head 3 can be taken out smoothly. The press fitting clamp disclosed by the utility model is simple in structure, convenient and flexible to install, high in replacement efficiency and capable of realizing quick replacement and installation of the press head 3.

Referring to fig. 1 to 4, the present invention is further illustrated in a specific embodiment as follows:

in the present embodiment, referring to fig. 3 and 4, as a preferred design, the locking member is composed of one or several steel balls 4 abutted against each other, the number of the steel balls 4 is determined according to actual conditions, and the surfaces of the steel balls 4 form circular arc guide surfaces. The steel ball 4 may be made of a ball made of other materials having sufficient rigidity and strength. Adopt steel ball 4 to constitute the retaining member, can set up according to actual need is nimble. Of course, the locking member may take other forms, such as a cylinder with two protruding ends, and the like, and it is sufficient to lock into the concave slot 32 of the pressing head 3 to abut against the connecting cylinder portion 31 and limit the axial position of the pressing head 3.

In this embodiment, referring to fig. 1 and 2, the inner hole surface of the fastening ring 2 is provided with a groove 21 near both ends, the depth of the groove 21 is set according to the size of the steel ball 4 and the depth of the concave slot 32, when the pressing head 3 needs to be disassembled, the fastening ring 2 is moved upwards, and when the groove 21 is aligned with the locking member, the pressing effect on the steel ball 4 is released, the steel ball 4 can be moved outwards, the fastening ring 2 does not need to be completely separated from the steel ball 4, and the steel ball 4 is prevented from dropping out. Further, still including setting up at the fender ring 5 that presss from both sides the installation drum 11 outer peripheral face and be located the tighrening ring 2 below, the tighrening ring 2 lower extreme is supported and is compressed tightly in the retaining member outside of outermost steel ball 4 when leaning on fender ring 5, when pressure head 3 clamping, moves down tighrening ring 2 and leans on to the fender ring 5 to the top, just in time compresses tightly on steel ball 4, realizes the locking to pressure head 3, keeps off ring 5 and plays spacing location effect. Preferably, the blocking ring 5 blocks the groove 21 at the lower end of the fastening ring 2, and the blocking ring 5 also serves to prevent the steel balls 4 from falling off from the lower end of the inner hole of the fastening ring 2.

In the present embodiment, referring to fig. 1 and 3, as a preferable design, the clamping cylinder 11 of the clamp body 1 has six limiting through holes 12, and the limiting through holes 12 are arranged in a circumferential array along the clamping cylinder 11, and each limiting through hole 12 is provided with a locking member composed of a set of steel balls 4, so that the pressing head 3 can be clamped more stably.

In the present embodiment, referring to fig. 1 and 3, a first pressure surface 13 facing downward is provided on the fixture body 1, and a second pressure surface 33 facing upward and opposite to the first pressure surface 13 is provided on the pressure head 3; when the pressing head 3 is installed in the fixture body 1, when the first pressure surface 13 abuts against the second pressure surface 33, the inner side end of the locking member aligns with the concave clamping groove 32, the bottom of the concave clamping groove 32 is arc-like, and the size of the concave clamping groove 32 in the circumferential direction of the connecting cylindrical part is larger than that of the steel ball 4, so that when the steel ball 4 is inserted into the concave clamping groove 32, a gap is formed between the steel ball 4 and the concave clamping groove 32 in the axial direction of the clamping cylinder 11, and the pressing head 3 can slightly move in the axial direction. By adopting the mode, the pressing device can be applied to the condition that the working pressure of the pressing head 3 is very large, when the quick pressing clamp drives the pressing head 3 to press down an object, the first pressure surface 13 abuts against the second pressure surface 33, the clamp body 1 transmits the pressure to the pressing head 3 through the first pressure surface 13 and the second pressure surface 33, the steel ball 4 is not pressed, namely the pressure is not transmitted through the steel ball 4, and the steel ball 4 is prevented from being crushed due to the too large pressure.

Under the less condition of operating pressure of pressure head 3, can come transmission pressure through steel ball 4, preferably this moment, indent draw-in groove 32 bottom is circular-arc, and with steel ball 4 looks adaptation, ensures that steel ball 4 supports and leans on and can keep fine contact in indent draw-in groove 32 to the axial position of restriction pressure head 3, and can transmit pressure well.

In the present embodiment, referring to fig. 1, the fastening ring 2 is preferably textured on its outer circumference to form a rough surface to facilitate the operation of moving the fastening ring 2.

To sum up, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a quick pressure equipment anchor clamps of press pressure head for install pressure head (3) on the press, its characterized in that: the rapid press-fitting clamp comprises a clamp body (1), a locking part and a fastening ring (2), the clamp body (1) is fixedly connected with a press, the clamp body (1) is provided with a clamping cylinder (11), and the peripheral surface of the clamping cylinder (11) is provided with at least three limiting through holes (12) communicated with the inner hole thereof, and each limiting through hole (12) is provided with a locking piece, the inner side end and the outer side end of each locking piece are convex arc guide surfaces, the pressure head (3) is provided with a connecting cylindrical part (31) extending into an inner hole of the clamping cylinder (11), a circle of concave clamping grooves (32) are arranged on the outer peripheral surface of the connecting cylindrical part (31), the fastening ring (2) is sleeved on the clamping cylinder (11), the fastening ring (2) is pressed against the outer side end of the locking piece to enable the inner side end of the locking piece to be inserted into the concave clamping groove (32), the fastening ring (2) is axially movable along the clamping cylinder (11).

2. A quick press-fitting jig as set forth in claim 1, wherein: the locking piece consists of one or a plurality of abutted round beads.

3. A quick press-fitting jig as set forth in claim 2, wherein: the ball is a steel ball (4).

4. The quick press-fitting jig according to claim 1 or 2, characterized in that: the inner hole surface of the fastening ring (2) is provided with grooves (21) near two ends.

5. The quick press-fitting jig according to claim 4, wherein: the clamping device also comprises a baffle ring (5) which is arranged on the peripheral surface of the clamping cylinder (11) and is positioned below the fastening ring (2); the lower end of the fastening ring (2) is abutted against the retaining ring (5) to compress the locking piece.

6. A quick press-fitting jig as set forth in claim 1, wherein: the limiting through holes (12) on the clamping cylinder (11) are arranged along the circumferential direction of the clamping cylinder (11) in an array mode.

7. A quick press-fitting jig as set forth in claim 1, wherein: the outer peripheral surface of the fastening ring (2) is a rough surface.

8. A quick press-fitting jig as set forth in claim 1, wherein: a first pressure surface (13) facing downwards is arranged on the clamp body (1), and a second pressure surface (33) facing upwards and opposite to the first pressure surface (13) is arranged on the pressure head (3); when the first pressure surface (13) abuts against the second pressure surface (33), the inner side end of the locking part aligns to the concave clamping groove (32), and a gap is reserved between the inner side end of the locking part and the concave clamping groove (32) in the axial direction of the connecting cylindrical part (31) when the inner side end of the locking part is inserted into the concave clamping groove (32).