CN214869743U

CN214869743U - Positioning fixture for polishing crosshead bushing

Info

Publication number: CN214869743U
Application number: CN202023182237.6U
Authority: CN
Inventors: 焦国强
Original assignee: Kaifeng Mingwen Machinery Co ltd
Current assignee: Kaifeng Mingwen Machinery Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-26
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a crosshead bushing technical field especially relates to a crosshead bushing polishes and uses positioning fixture, the on-line screen storage device comprises a base, the base up end is equipped with supports boss and setting element, support the boss and establish in the centre of base, just the up end of supporting the boss is equipped with the bush, the setting element is established in the both sides of supporting the boss, and the setting element is including location boss and positioning screw, be equipped with a screw thread section of thick bamboo on four angles of base, be equipped with the threaded rod in the screw thread section of thick bamboo, the threaded rod up end is equipped with braced frame, braced frame all wears to be equipped with the guide arm on the lateral wall all around, the one end that the guide arm is close to each other is equipped with the kicking block. The side wall of the upper end of the bush is clamped in the supporting frame through the guide rod and the top block, and the threaded rod in the threaded cylinder is adjusted, so that the distance between the base and the supporting frame is changed to enable the bush to be well installed.

Description

Positioning fixture for polishing crosshead bushing

Technical Field

The utility model relates to a cross head bush technical field especially relates to a positioning fixture is used in cross head bush polishing.

Background

The bush is used for reducing the wearing and tearing of axle and seat, need change when axle sleeve or bush wearing and tearing to the certain degree, can practice thrift like this because of the cost of changing axle or seat, generally speaking, the bush adopts interference fit with the seat, and adopts clearance fit with the axle, because no matter how still can't avoid wearing and tearing, can only the life-span, and axle type part is relatively easy processing. Need polish during crosshead bush production, and the bush product is different in size, leads to being difficult to the suitable bush machining height of adjustment, and because bush external diameter size is inconsistent, in the course of working, the positioning fixture of product needs often to be changed, reduces machining efficiency.

To solve the above problems, we propose a positioning jig for polishing a crosshead bushing.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a positioning fixture for polishing a crosshead bushing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a crosshead bushing polishes and uses positioning fixture, includes the base, the base up end is equipped with supports boss and setting element, support the boss and establish in the centre of base, just the up end of supporting the boss is equipped with the bush, the setting element is established in the both sides of supporting the boss, and the setting element includes location boss and positioning screw, be equipped with a screw thread section of thick bamboo on four angles of base, be equipped with the threaded rod in the screw thread section of thick bamboo, the threaded rod up end is equipped with braced frame, all wear to be equipped with the guide arm on braced frame's the lateral wall all around, the one end that the guide arm is close to each other is equipped with the kicking block.

Preferably, the positioning piece is in threaded connection with the upper end face of the base through a positioning screw rod.

Preferably, all be equipped with rotary joint on four angles of terminal surface under the braced frame, and the upper end of threaded rod is established in rotary joint.

Preferably, the side, close to each other, of the top block is provided with a cambered surface structure corresponding to the bushing.

Preferably, one end of the guide rod, which is far away from the guide rod, is provided with a pull block.

Preferably, chamfers are arranged on the upper end faces of the supporting boss and the positioning boss.

The utility model has the advantages that: set up the base in this scheme, support the boss, setting element and braced frame, support boss and setting element have been set up on the base, the lower extreme card of bush is on the chamfer of supporting the boss, through the straightness that hangs down of positioning screw adjustment bush in the setting element and base, braced frame has set up the guide arm on the lateral wall all around, the lateral wall of bush upper end passes through the guide arm and presss from both sides tightly in braced frame with the kicking block, the threaded rod in the adjustment threaded cylinder, thereby change the distance between base and the braced frame so that the bush installation is good, thereby this device can adapt to the bush product that differs in size and external diameter size, the time of changing positioning fixture has been saved, and the machining efficiency is improved.

Drawings

Fig. 1 is a schematic front view of a positioning fixture for polishing a crosshead bushing according to the present invention;

FIG. 2 is a schematic side view of a portion of a positioning fixture for polishing a crosshead bushing according to the present invention;

fig. 3 is a schematic view of a top view structure of a positioning fixture base for polishing a crosshead bushing according to the present invention.

In the figure: the device comprises a base 1, a support boss 2, a positioning piece 3, a positioning boss 301, a positioning screw 302, a threaded barrel 4, a threaded rod 5, a support frame 6, a guide rod 7, a top block 701, a pull block 702, a spring 8, a bushing 9 and a rotary joint 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In this embodiment, referring to fig. 1-3, a positioning fixture is used in cross head bush polishing, including base 1, base 1 up end is equipped with support boss 2 and setting element 3, support boss 2 and establish in base 1's centre, and the up end that supports boss 2 is equipped with bush 9, setting element 3 is established in the both sides that support boss 2, setting element 3 is including location boss 301 and positioning screw 302, be equipped with a thread section of thick bamboo 4 on four angles of base 1, be equipped with threaded rod 5 in the thread section of

thick bamboo

4, 5 up ends of threaded rod are equipped with braced frame 6, all wear to be equipped with guide arm 7 on braced frame 6's the lateral wall all around, the one end that guide arm 7 is close to each other is equipped with kicking block 701.

Setting element 3 passes through positioning screw 302 and base 1's up end threaded connection, all is equipped with rotary joint 10 on four angles of terminal surface under the braced frame 6, and the upper end of threaded rod 5 is established in rotary joint 10, and the cambered surface structure that corresponds with bush 9 is established to one side that kicking block 701 is close to each other, and the one end that guide arm 7 was kept away from each other is equipped with draws piece 702, and the chamfer has all been seted up with the up end of location boss 301 to support boss 2.

The specific implementation mode is as follows: this device is a positioning fixture for crosshead bushing polishing, including base 1, base 1 is last to have set up support boss 2 and setting element 3, the lower extreme card of bush 9 is on the chamfer of supporting boss 2, through positioning screw 302 adjustment bush 9 in the setting element 3 and base 1's the straightness that hangs down, be convenient for polish processing, support frame 6 has set up guide arm 7 on the lateral wall all around, the lateral wall of bush 9 upper end passes through guide arm 7 and kicking block 701 and presss from both sides tightly in support frame 6, threaded rod 5 in the adjustment threaded section of thick bamboo 4, thereby change the distance between base 1 and the support frame 6 so that bush 9 installs well, consequently this device can adapt to the bush 9 that length differs and external diameter size differs, the time of changing positioning fixture has been saved, and machining efficiency is improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a positioning fixture is used in cross head bush polishing, includes base (1), its characterized in that, base (1) up end is equipped with supports boss (2) and setting element (3), support boss (2) and establish in the centre of base (1), just the up end that supports boss (2) is equipped with bush (9), setting element (3) are established in the both sides that support boss (2), and setting element (3) are including location boss (301) and positioning screw (302), be equipped with a screw thread section of thick bamboo (4) on four angles of base (1), be equipped with threaded rod (5) in a screw thread section of thick bamboo (4), threaded rod (5) up end is equipped with braced frame (6), all wear to be equipped with guide arm (7) on the lateral wall all around braced frame (6), the one end that guide arm (7) are close to each other is equipped with kicking block (701).

2. The positioning jig for crosshead bushing polishing according to claim 1, wherein the positioning member (3) is threadedly coupled to the upper end surface of the base (1) by a positioning screw (302).

3. The positioning jig for crosshead bushing polishing according to claim 1, wherein the support frame (6) is provided with rotary joints (10) at four corners of a lower end surface thereof, and the upper end of the threaded rod (5) is provided in the rotary joints (10).

4. The positioning jig for crosshead bushing polishing according to claim 1, wherein a side where the top blocks (701) are close to each other is provided with a cambered surface structure corresponding to the bushing (9).

5. A positioning jig for crosshead bushing polishing according to claim 1, characterized in that the ends of the guide rods (7) remote from each other are provided with pull blocks (702).

6. The positioning fixture for polishing the crosshead bushing according to claim 1, wherein chamfers are formed on the upper end surfaces of the support boss (2) and the positioning boss (301).