CN216633514U

CN216633514U - Positioning fixture for processing pin shaft

Info

Publication number: CN216633514U
Application number: CN202122854655.3U
Authority: CN
Inventors: 高安锋; 刘校
Original assignee: Hangzhou Weidong Numerical Control Electromechanical Co ltd
Current assignee: Hangzhou Weidong Numerical Control Electromechanical Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-31
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a positioning fixture for processing a pin shaft, which comprises a base, a workbench, two rotary oil cylinders and a positioning mechanism, wherein the workbench is fixedly arranged above the base, the two rotary oil cylinders are fixedly arranged in the middle of the workbench, and the positioning mechanism is arranged on the workbench and matched with the rotary oil cylinders. Adopt above-mentioned technical scheme, simple structure, the technique is reasonable, and convenient operation can carry out accurate location and fastening to columniform round pin axle to ensure the quality of processing, and this positioning fixture is suitable for the round pin axle of different diameters, and application scope is wider, and then has reduced the cost of round pin axle processing.

Description

Positioning fixture for processing pin shaft

Technical Field

The utility model relates to the technical field of pin shaft machining, in particular to a positioning clamp for pin shaft machining.

Background

As is known, the pin shaft is a standardized fastener, can be fixedly connected statically, can also move relative to a connected piece, is mainly used for the hinged part of two parts to form hinged connection, is usually locked by a split pin, is reliable in work and convenient to detach, needs to be fixed before the pin shaft is machined, and needs to be clamped and fixed by a positioning clamp. But because the cylindrical structure of round pin axle to lead to the fastening effect not good, add the time spent, often because the location is inaccurate or the skew appears, and then influence the quality of product.

In addition, because the diameters of the pin shafts of different types are different, the positioning clamp for processing the pin shaft in the prior art is usually designed in a customized manner, so that the structure is complex, the use limitation is large, the universality is poor, the pin shaft processing clamp cannot be suitable for the pin shafts of different specifications, the application range is small, and the pin shaft processing cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

According to the defects of the prior art, the utility model provides the positioning clamp for processing the pin shaft, which not only can play a good positioning and fastening effect, but also can be suitable for the pin shaft with any size.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a positioning fixture for round pin axle processing, includes base, workstation, rotatory hydro-cylinder and positioning mechanism, the workstation is fixed to be set up in the base top, two rotatory hydro-cylinder fixed mounting is in the intermediate position of workstation, positioning mechanism sets up on the workstation and cooperatees with rotatory hydro-cylinder.

Preferably, the positioning mechanism comprises V-shaped positioning blocks fixedly arranged on the workbench and an upper pressure plate mounted to an output shaft of the rotary oil cylinder, each of the two sides of the rotary oil cylinder is provided with one V-shaped positioning block by a symmetrical mechanism, the four V-shaped positioning blocks are arranged in a central symmetrical structure, the center of the upper pressure plate is fixedly connected to the end part of the output end of the rotary oil cylinder, the two ends of the upper pressure plate are respectively positioned above the two corresponding V-shaped positioning blocks, and the two V-shaped positioning blocks on the same side are matched with each other to fasten one pin shaft workpiece.

Preferably, one side of the V-shaped positioning block, which comprises the base, is provided with two Y-direction positioning blocks, and the two Y-direction positioning blocks are respectively matched with one ends of the two pin shaft workpieces.

Preferably, the V-shaped positioning block comprises a supporting push cylinder, a supporting plate and a V-shaped block, the supporting push cylinder is fixedly installed on the upper surface of the workbench, the supporting plate is fixedly installed at the output end of the supporting push cylinder, and the V-shaped block is fixedly arranged on the upper surface of the supporting plate.

Preferably, the inclined surfaces of the two inner sides of the V-shaped block are provided with fixing grooves, a fastening cushion block is fixedly mounted in the fixing grooves, and the upper surface of the fastening cushion block is provided with a sawtooth surface.

Preferably, rubber pressing blocks are arranged on the lower sides of the two ends of the upper pressing plate.

Preferably, an oil supply system for supplying oil to the rotary oil cylinder is fixed on the base.

Preferably, the base is fixed with a robot quick clamping positioning block.

Preferably, four zero point positioning devices arranged in a centrosymmetric structure are arranged on the workbench.

The utility model has the following characteristics and beneficial effects:

adopt above-mentioned technical scheme, simple structure, the technique is reasonable, and convenient operation can carry out accurate location and fastening to columniform round pin axle to ensure the quality of processing, and this positioning fixture is suitable for the round pin axle of different diameters, and application scope is wider, and then has reduced the cost of round pin axle processing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the structure in which the present invention has been implemented.

Fig. 2 is a schematic view a-a of fig. 1.

Fig. 3 is a schematic structural diagram of the V-shaped positioning block in fig. 1.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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 otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The utility model provides a positioning fixture for processing a pin shaft, which comprises a base 1, a workbench 2, rotary oil cylinders 3 and a positioning mechanism, wherein the workbench 2 is fixedly arranged above the base 1, the two rotary oil cylinders 3 are fixedly arranged in the middle of the workbench 2, and the positioning mechanism is arranged on the workbench 2 and matched with the rotary oil cylinders 3, as shown in fig. 1 and 2.

Among the above-mentioned technical scheme, simple structure, the technique is reasonable, and automatic operation has practiced thrift the labour greatly, has improved work efficiency.

Specifically, positioning mechanism is including fixed V type locating piece 6 that sets up on workstation 2 and the top board 4 of installing to the output shaft of rotatory hydro-cylinder 3, every the both sides of rotatory hydro-cylinder 3 are the symmetry mechanism respectively and set up a V type locating piece 6, four V type locating piece 6 is the central symmetrical structure setting, the tip of the output of the center department fixed connection of top board 4 to rotatory hydro-cylinder 3, the both ends of top board 4 are located the top of two corresponding V type locating pieces 6 respectively, with two of one side V type locating piece 6 cooperatees and fastens a round pin axle work piece 11.

Among the above-mentioned technical scheme, through setting up V type locating piece 6 to can carry out fine location to the round pin axle work piece 11 of cylindrical structure, and be suitable for the round pin axle work piece 11 of different diameters different specifications. And further greatly reduces the processing cost of the pin shaft workpiece 11. In addition, the upper pressing plate 4 is used for fastening, and therefore good fastening and positioning effects are achieved.

It can be understood that, cooperate through two V type locating pieces 6 and fasten a columniform round pin axle, the fastening effect is better, and is more firm to ensure the processingquality in later stage.

Furthermore, one side of the V-shaped positioning block 6, which comprises the base 1, is provided with two Y-direction positioning blocks 5, and the two Y-direction positioning blocks 5 are respectively matched with one ends of the two pin shaft workpieces 11.

It can be understood that, by providing the matching Y-directional positioning block 5, one end of the pin shaft workpiece 11 is abutted against the Y-directional positioning block 5 during positioning, so that the pin shaft workpiece 11 can be accurately positioned.

According to a further arrangement of the present invention, as shown in fig. 3, the V-shaped positioning block 6 includes a supporting cylinder 601, a supporting plate 604 and a V-shaped block 603, the supporting cylinder 601 is fixedly installed on the upper surface of the worktable 2, the supporting plate 604 is fixedly installed on the output end of the supporting cylinder 601, and the V-shaped block 603 is fixedly installed on the upper surface of the supporting plate 604.

Among the above-mentioned technical scheme, through setting up support push cylinder 601 to can adjust the distance between V type locating piece 6 and the top board 4, and then applicable different specifications different diameters's round pin axle work piece 11 fastening and location.

Further, two inner inclined surfaces of the V-shaped block 603 are provided with fixing grooves, a fastening pad 602 is fixedly mounted in the fixing grooves, and a serrated surface 603 is arranged on the upper surface of the fastening pad 602.

Among the above-mentioned technical scheme, through the setting of serrated surface 603 to increased the frictional force between V type locating piece 6 and the round pin axle work piece 11, further improvement the fastening effect, ensured the precision and the quality of later stage processing.

Further, rubber pressing blocks 10 are arranged on the lower sides of the two ends of the upper pressing plate 4.

Through the arrangement of the rubber pressing block 10, the pin shaft workpiece 11 can be well fastened, and the pin shaft workpiece 11 is protected to a certain extent.

Furthermore, an oil supply system 7 for supplying oil to the rotary oil cylinder 3 is fixed on the base 1.

It will be appreciated that the rotary cylinder 3 is supplied with oil by an oil supply system 7.

Further, the base 1 is fixed with a robot rapid clamping positioning block 8.

It can be understood that the robot quick clamping positioning block 8 is arranged to be matched with equipment of a third party conveniently, and the robot quick clamping device is installed quickly.

Furthermore, four zero point positioning devices 9 arranged in a central symmetrical structure are arranged on the workbench 2.

It can be understood that, through setting up zero positioner 9, can realize fast positioning and the clamp tightly between frock clamp and the machine tool fast, and then reduce the assistance-time in the machining, improved machining's work efficiency greatly.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments, including the components, without departing from the principles and spirit of the utility model, and still fall within the scope of the utility model.

Claims

1. The utility model provides a positioning fixture for round pin axle processing, its characterized in that, includes base (1), workstation (2), rotatory hydro-cylinder (3) and positioning mechanism, workstation (2) are fixed to be set up in base (1) top, two rotatory hydro-cylinder (3) fixed mounting is in the intermediate position of workstation (2), positioning mechanism sets up on workstation (2) and cooperatees with rotatory hydro-cylinder (3).

2. The positioning fixture for processing the pin shaft according to claim 1, wherein the positioning mechanism comprises V-shaped positioning blocks (6) fixedly arranged on the worktable (2) and an upper pressing plate (4) mounted to an output shaft of the rotary oil cylinder (3), two sides of each rotary oil cylinder (3) are respectively provided with one V-shaped positioning block (6) in a symmetrical mechanism, four V-shaped positioning blocks (6) are arranged in a central symmetrical structure, the center of the upper pressing plate (4) is fixedly connected to the end of the output end of the rotary oil cylinder (3), two ends of the upper pressing plate (4) are respectively located above two corresponding V-shaped positioning blocks (6), and two V-shaped positioning blocks (6) on the same side are matched to fasten a pin shaft workpiece (11).

3. The positioning fixture for processing the pin shaft according to claim 2, wherein the V-shaped positioning block (6) comprises two Y-directional positioning blocks (5) arranged on one side of the base (1), and the two Y-directional positioning blocks (5) are respectively matched with one ends of two pin shaft workpieces (11).

4. The positioning fixture for pin shaft machining according to claim 2, wherein the V-shaped positioning block (6) comprises a supporting push cylinder (601), a supporting plate (604) and a V-shaped block (603), the supporting push cylinder (601) is fixedly installed on the upper surface of the workbench (2), the supporting plate (604) is fixedly installed on the output end of the supporting push cylinder (601), and the V-shaped block (603) is fixedly arranged on the upper surface of the supporting plate (604).

5. The positioning fixture for processing the pin shaft according to claim 4, wherein two inner inclined surfaces of the V-shaped block (603) are provided with fixing grooves, a fastening cushion block (602) is fixedly installed in the fixing grooves, and the upper surface of the fastening cushion block (602) is provided with a sawtooth surface.

6. The positioning fixture for processing the pin shaft as claimed in claim 2, wherein rubber pressing blocks (10) are arranged on the lower sides of the two ends of the upper pressing plate (4).

7. The positioning fixture for pin shaft machining according to claim 1, wherein an oil supply system (7) for supplying oil to the rotary oil cylinder (3) is fixed on the base (1).

8. The positioning fixture for processing the pin shaft according to claim 1, wherein the base (1) is fixed with a robot rapid-clamping positioning block (8).

9. The positioning fixture for processing the pin shaft according to claim 1, wherein four zero point positioning devices (9) are arranged on the worktable (2) in a central symmetrical structure.