CN204843626U - Hydraulic pressure festival fork anchor clamps - Google Patents

Abstract

The utility model relates to a hydraulic pressure festival fork anchor clamps that the location is accurate, the centre gripping is firm, this hydraulic pressure festival fork anchor clamps be including bottom plate and mounting bracket, the mounting bracket is installed on the bottom plate, its characterized in that: install the pneumatic cylinder on the mounting bracket, the piston rod of pneumatic cylinder passes mounting bracket and xarm fixed connection, and two bilateral symmetry's locating component is installed respectively at both ends about the xarm, locating component including perpendicular fixed connection on the xarm the single arm -drag and hinge the locating piece at the single arm -drag lower extreme, two location portions of extending to the inboard around the locating piece has around, two location portions symmetries set up, be connected with the spring between locating piece and the single arm -drag, the location portion that the spring ordered about the locating piece makes progress away, the outer end of locating piece is equipped with spacing portion, can have an effect with the single arm -drag for spacing, and the positioning seat is installed to the mounting bracket bottom of controlling between two locating pieces, and the position of controlling two locating pieces place is less than the positioning seat. This hydraulic pressure festival fork anchor clamps can automatic will save the exact position of fork location on the positioning seat to can will save the fork and firmly grasp, through this kind of festival fork anchor clamps structure, not only show and improving machining efficiency, guarantee the processingquality of product moreover.

Description

A kind of hydraulic pressure joint fork fixture

Technical field

The utility model relates to a kind of fixture, is specifically related to a kind of fixture being clamped joint fork by Driven by Hydraulic Cylinder.

Background technology

Joint fork is universal-joint fork, is a kind of mechanical transmission component.Joint fork has jaw pitch pin with two, and jaw has axis hole, and for installation connecting element, fork pin is provided with pin-and-hole, realizes two and saves to pitch for installing and relatively rotate the bearing pin of connection.Joint fork forges out and also needs afterwards to carry out fine finishining to axis hole and pin-and-hole, therefore, lathe adds man-hour requirement and is fixed by joint fork forging body.Due to the particularity of joint fork structure, joint fork fixture general is at present not easy steady for joint fork folder, thus brings difficulty to the fining-off of joint fork.

Summary of the invention

In view of the deficiency that prior art exists, the utility model innovation provides a kind of accurate positioning, the hydraulic pressure joint fork fixture of firm grip, this hydraulic pressure joint fork fixture includes base plate and installing rack, described installing rack is arranged on base plate, it is characterized in that: described installing rack is provided with hydraulic cylinder, the piston rod of described hydraulic cylinder is fixedly connected with transverse arm through installing rack, the two ends, left and right of described transverse arm are separately installed with two symmetrical positioning components, described positioning component includes the torque arm be vertically fixedly connected on transverse arm and the locating piece being hinged on torque arm lower end, described locating piece has former and later two location divisions extended to the inside, former and later two location divisions are symmetrical arranged, spring is connected with between described locating piece and torque arm, the location division that described spring orders about locating piece is upwards walked, the outer end of described locating piece is provided with limiting section, described limiting section can be had an effect with torque arm, bottom installing rack between the locating piece of described left and right two, positioning seat is installed, the position at locating piece place, described left and right two is lower than positioning seat.

Described locating piece also has the clamping part extended to the inside, and described retaining part is between location division, front and back two.The upper surface of described location division has and saves the cambered surface of pitching acting surface and matching.

According to a kind of hydraulic pressure joint fork fixture that the utility model provides, automatically joint can be pitched the exact position be positioned on positioning seat, and joint fork firmly can be clamped, by this joint fork clamp structure, not only significantly improve working (machining) efficiency, and ensure that the crudy of product.

Accompanying drawing explanation

Fig. 1 is the front view of joint fork;

Fig. 2 is the side view of joint fork;

Fig. 3 is structural representation of the present utility model;

Fig. 4 is side view of the present utility model;

Fig. 5 is the partial enlarged drawing at A place in Fig. 3;

Fig. 6 is the top view of locating piece.

Detailed description of the invention

As shown in figs. 1 and 2, joint fork 1 there is jaw with two pitch pin, jaw has axis hole 11, pitch pin be provided with pin-and-hole 12, fixture of the present utility model be exactly by the joint of this structure pitch clamp, be convenient to carry out fining-off to the pin-and-hole 11 of jaw.

This hydraulic pressure joint fork fixture includes base plate 2 and installing rack 3, as shown in figs. 3-4, installing rack 3 is installed on a base plate 2, is provided with positioning seat 8 bottom installing rack 3, this positioning seat 8 is for locating the head of joint fork 1, and the axis hole 11 specifically saving fork 1 head is enclosed within positioning seat 8; Installing rack 3 top is provided with hydraulic cylinder 4, the piston rod of this hydraulic cylinder 4 is fixedly connected with a transverse arm 5 through installing rack 3, the two ends, left and right of this transverse arm 5 are separately installed with two symmetrical positioning components, the structure of these two positioning components is all identical, by with the coordinating of positioning seat 8, both can clamp the right and left as saved fork 1 in Fig. 1 simultaneously.

Illustrate the structure & working mechanism of this positioning component below.

Positioning component includes and is vertically fixedly connected on torque arm 6 on transverse arm 5 and locating piece 7, locating piece 7 is the lower ends being hinged on torque arm 6, and between locating piece 7 and torque arm 6, be connected with spring 9, as shown in Figure 5, by the effect of spring 9, the medial extremity of locating piece 7 just has the trend of up movement, and the medial extremity of locating piece 7 has former and later two location divisions 71 extended to the inside, and former and later two location divisions 71 are symmetrical arranged, as shown in Figure 6.When hydraulic cylinder 4 is up walked with torque arm 6, locating piece 7 moves up, at this moment former and later two location divisions 71 of locating piece 7 start the transition face 10 getting to fork pin and jaw along fork pin side, due to the effect of transition face 10, just walk downward around pin joint in former and later two location divisions 71, and under the active force of spring 9, location division 71 is close to again the transition face 10 of joint fork all the time, until the limiting section 74 on locating piece 7 contacts with torque arm 74 and limits the rotation of locating piece 7, at this moment the acting surface of location division 71 has also found the acting surface of joint fork 1, thus joint fork 1 is clamped from the below of positioning seat 8, this transition face 10 can as an anchor point, therefore former and later two location divisions 71 just to be coordinated with positioning seat 8 by this anchor point and are clamped by joint fork 1, and due to former and later two location divisions 71 symmetrical, while locating piece 7 rotates, location division, front and back two 71 can coordinate the position correcting joint fork automatically, and two pin-and-holes 12 that envoy pitches 1 fork pin are on the same direction of lathe tool processing.

In addition, because the transition face 10(saving fork 1 is the acting surface of joint fork recited above) be cambered surface, in order to can stable holding be realized, the upper surface (being the acting surface of location division 71 recited above) of location division 71 is designed to and saves the cambered surface 72 of pitching transition face and matching by the utility model, due to the effect of spring 9, the cambered surface 72 of location division 71 can be automatically found the transition face 10 of joint fork 1, and namely two acting surfaces coincide and contact, and firmly clamping joint fork 1 extremely can be mated in such location division 71.

Equally, in order to joint fork 1 more firmly can be clamped, the utility model is also provided with clamping part 73 between location division, front and back two 71, this clamping part 73 also extends to the inside, and this clamping part 73 can act on the bottom in joint jaw portion, by this locating piece 7 structure, in fact a locating piece 7 has three application points, left and right two locating pieces 7 just have six application points, and therefore this fixture can clamp joint fork very securely, for solid basis is laid in follow-up processing.

Claims (3)

1. a hydraulic pressure joint fork fixture, include base plate (2) and installing rack (3), described installing rack (3) is arranged on base plate (2), it is characterized in that: described installing rack (3) is provided with hydraulic cylinder (4), the piston rod of described hydraulic cylinder (4) is fixedly connected with transverse arm (5) through installing rack (3), the two ends, left and right of described transverse arm (5) are separately installed with two symmetrical positioning components, described positioning component includes the torque arm (6) be vertically fixedly connected on transverse arm (5) and the locating piece (7) being hinged on torque arm (6) lower end, described locating piece (7) has former and later two location divisions extended to the inside (71), former and later two location divisions (71) are symmetrical arranged, spring (9) is connected with between described locating piece (7) and torque arm (6), the location division (71) that described spring (9) orders about locating piece (7) is upwards walked, the outer end of described locating piece (7) is provided with limiting section (74), described limiting section (74) can be had an effect with torque arm (6), installing rack (3) bottom between described left and right two locating piece (7) is provided with positioning seat (8), the position at locating piece (7) place, described left and right two is lower than positioning seat (8).

2. hydraulic pressure joint fork fixture according to claim 1, is characterized in that: described locating piece (7) also has the clamping part (73) extended to the inside, and described clamping part (73) is positioned between location division, front and back two (71).

3. hydraulic pressure joint fork fixture according to claim 1, is characterized in that: the upper surface of described location division (71) has and saves the cambered surface (72) of pitching acting surface and matching.