CN219788113U - Piston adds clamping apparatus - Google Patents

Abstract

The utility model relates to the field of piston machining, in particular to a piston machining fixture, which comprises a rotating head; and the chuck assembly is movably arranged at one end of the rotating head, the chuck assembly comprises a deformation chuck, the deformation chuck is connected with the rotating head, one end of the deformation chuck, which deviates from the rotating head, is connected with the piston disc, and when the deformation chuck moves towards the direction close to the rotating head, the deformation chuck clamps the piston disc, otherwise, the piston disc is loosened. The utility model can effectively utilize the self structural configuration to realize the advantages of difficult falling of the piston disc, long-time operation and firm structure.

Description

Piston adds clamping apparatus

Technical Field

The utility model relates to the field of piston machining, in particular to a piston machining clamp.

Background

As shown in fig. 7, the previous generation of driving the moving rod 35 is that the cylinder 200 drives, that is, an cylinder 200 and a pull rod 300, one end of the pull rod 300 is connected with the cylinder 200, and the other end is fixedly connected with the insertion end 352 of the moving rod 35, so that the pull rod 300 is driven to stretch for a predetermined length through the movement of oil, thereby driving the moving rod 35 to move back and forth for a predetermined distance, but after the cylinder 200 operates for a long time, the problem of leakage of the cylinder 200 occurs, so that the acting force applied by the pull rod 300 to the moving rod 35 cannot drive the moving rod 35, and the piston processing fixture cannot clamp the piston disc.

Therefore, there is a need for a piston machining fixture that is not prone to falling off, can operate for a long period of time, and is structurally sound.

Disclosure of Invention

The utility model mainly aims to provide a piston machining fixture, wherein the piston machining fixture can effectively utilize the self structural configuration of the piston machining fixture to realize the advantages that a piston disc is not easy to fall off and can operate for a long time.

Another object of the present utility model is to provide a piston machining fixture, wherein the piston machining fixture includes a rotating head and a chuck assembly, the chuck assembly is movably disposed at one end of the rotating head, the chuck assembly includes a deformation chuck, the deformation chuck is connected to the rotating head, one end of the deformation chuck, which is away from the rotating head, is connected to the piston disc, wherein when the deformation chuck moves in a direction approaching to the rotating head, the deformation chuck clamps the piston disc, otherwise releases the piston disc, and the chuck assembly further includes a moving rod, the moving rod rotationally drives the deformation chuck to directly push and pull relative to the oil cylinder, and the moving rod moves back and forth through a threaded connection, so that the structure is more firm, and the piston machining fixture can operate for a long time.

The piston machining clamp is simple in structure, convenient to operate, high in economy and easy to popularize and use, and does not relate to complex manufacturing processes and expensive materials.

In order to achieve at least one of the above objects, the present utility model provides a piston machining jig, comprising:

a rotating head; and

the chuck assembly is movably arranged at one end of the rotating head, the chuck assembly comprises a deformation chuck, the deformation chuck is connected with the rotating head, one end of the deformation chuck, which deviates from the rotating head, is connected with the piston disc, and when the deformation chuck moves towards the direction close to the rotating head, the deformation chuck clamps the piston disc, otherwise, the piston disc is loosened.

In one or more embodiments of the present utility model, the rotating head includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the second connecting portion, the first connecting portion has a first circular groove, a bottom wall forming the first circular groove has a first insertion hole, the first insertion hole is respectively communicated with the first circular groove and the outside, and a bottom wall forming the first insertion hole and facing away from the first circular groove has a chamfer.

In one or more embodiments of the present utility model, the deformation chuck has an insertion portion, an extension portion and a clamping portion, two ends of the extension portion are respectively connected to the insertion portion and the clamping portion, the insertion portion and the extension portion are both disposed in the first insertion hole, a wall surface of the extension portion, which is adjacent to the clamping portion, is an inclined surface, and a wall surface of the extension portion, which is adjacent to the clamping portion, is in contact with the inclined surface.

In one or more embodiments of the present utility model, the clamping portion has a second circular groove, and the bottom wall forming the second circular groove has a second insertion hole, and the bottom wall forming the second insertion hole has a third insertion hole, and the second insertion hole is respectively communicated with the second circular groove and the third insertion hole, and the third insertion hole is also communicated with the first insertion hole.

In one or more embodiments of the present utility model, the outer wall of the extension portion further has a plurality of through grooves, the through grooves are all communicated with the second insertion hole and are all close to the insertion portion, one end of the clamping portion, which is away from the extension portion, is further provided with a plurality of partition grooves, the partition grooves are in one-to-one correspondence with the through grooves, each partition groove is communicated with the corresponding through groove, in addition, the bottom wall of the second round groove is further provided with a plurality of first uniformly distributed assembly holes, the first assembly holes and the partition grooves are staggered, and two ends of the first assembly holes are respectively communicated with the outside and the second round groove.

In one or more embodiments of the present utility model, the chuck assembly further includes a connection sleeve, one end of the connection sleeve is disposed in the first insertion hole, the other end of the connection sleeve is disposed in the first circular groove, one end of the connection sleeve, which faces away from the first insertion hole, has a second assembly hole, the bottom wall forming the second assembly hole has a third assembly hole, one end of the third assembly hole is connected to the second assembly hole, and the other end of the third assembly hole is opposite to the third insertion hole.

In one or more embodiments of the present utility model, the cartridge assembly further includes a moving rod having an abutting end and an insertion end, the abutting end being connected to the insertion end, and one end of the insertion end passing through the third insertion hole and the third fitting hole in sequence and being placed in the second fitting hole while the abutting end is in contact with a bottom wall forming the second insertion hole.

In one or more embodiments of the present utility model, the third assembly hole and the second assembly hole are threaded holes, and the third assembly hole is in threaded connection with the insertion end.

In one or more embodiments of the present utility model, the outer wall of the second connecting portion has a positioning hole, and the outer wall of the insertion portion has a limiting groove, the positioning hole faces the limiting groove, and the piston processing fixture further includes a limiting member, where one end of the limiting member is screwed with the positioning hole and is disposed in the limiting groove.

Drawings

These and/or other aspects and advantages of the present utility model will become more apparent and more readily appreciated from the following detailed description of the embodiments of the utility model, taken in conjunction with the accompanying drawings, wherein:

fig. 1 illustrates a schematic structural view of a piston machining fixture.

Fig. 2 illustrates a second schematic structural view of a piston machining fixture.

Fig. 3 illustrates a cross-sectional view of a piston machining fixture.

Fig. 4 illustrates a partial schematic structure of a piston machining jig.

Fig. 5 illustrates a schematic structural view of a deformation chuck.

Fig. 6 illustrates a schematic structural view of the rotary head.

Fig. 7 illustrates an operational schematic of a conventional piston machining fixture.

Fig. 8 illustrates a schematic structural view of the piston disc.

Description of the embodiments

The terms and words used in the following description and claims are not limited to literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the utility model. It will be apparent to those skilled in the art, therefore, that the following description of the various embodiments of the utility model is provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Although ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used merely to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.

Schematic piston machining fixture

Referring to fig. 1 to 8, it should be noted that the piston machining fixture according to a preferred embodiment of the present utility model is provided to clamp a piston disc, wherein, as shown in fig. 8, the piston disc includes a piston disc body 10, the piston disc body 10 has a first cavity 101, a bottom wall forming the first cavity 101 has a first boss 11, the first boss 11 has a second cavity 102, and a bottom wall forming the second cavity 102 has a second boss 12, and further, another side of the piston disc body 10 has a third boss 13, a side of the third boss 13 facing away from the first boss 11 has a third cavity 103, and a bottom wall forming the second cavity 102 has a fourth boss 14. The second boss 12 has a first connection hole 104, the first connection hole 104 penetrates through the second boss 12 and the fourth boss 14 in sequence, and in addition, a bottom wall forming the first connection hole 104 has an annular clamping groove 105.

The piston working jig as shown in fig. 1 to 6, wherein the piston working jig comprises a rotary head 20 and a collet assembly 30, the collet assembly 30 is movably provided at one side of the rotary head 20, and the rotary head 20 is connected to an external first driving assembly and drives the rotary head 20 to rotate, and the collet assembly 30 is further connected to an external pulling assembly, and the external pulling assembly is connected to the collet assembly 30 and is configured to pull the collet assembly 30 so as to move the collet assembly 30 laterally. Wherein, one side of the chuck assembly 30 away from the rotating head 20 is connected with the piston disc, namely, when the chuck assembly 30 moves towards the direction close to the rotating head 20, the piston disc is clamped, and conversely, when the chuck assembly 30 moves away from the rotating head 20, the chuck assembly 30 releases the piston disc.

It should be noted that the rotating head 20 includes a first connecting portion 21 and a second connecting portion 22, the first connecting portion 21 is connected to the second connecting portion 22, the first connecting portion 21 is disc-shaped, and the second connecting portion 22 is column-shaped.

It should be noted that, the first connecting portion 21 has a first circular groove 2101, and the bottom wall forming the first circular groove 2101 has a first insertion hole 2102, the first insertion hole 2102 is respectively connected to the first circular groove 2101 and the outside, and the bottom wall forming the first insertion hole 2102 and facing away from the first circular groove 2101 has a chamfer 100, so that the aperture of the end of the first insertion hole 2102 facing away from the first circular groove 2101 is increased.

That is, the collet assembly 30 includes a deformation collet having an insertion portion 31, an extension portion 32, and a clamping portion 33, both ends of the extension portion 32 are connected to the insertion portion 31 and the clamping portion 33, respectively, and both the insertion portion 31 and the extension portion 32 are disposed in the first insertion hole 2102. Wherein the wall surface of the extension portion 32 near the clamping portion 33 is a slope, that is, the wall surface of the extension portion 32 near the clamping portion 33 contacts the chamfer 100, thereby defining the position of the deformation chuck.

It should be noted that, the clamping portion 33 has a second circular groove 3301, and the bottom wall forming the second circular groove 3301 has a second insertion hole 3302, and the bottom wall forming the second insertion hole 3302 has a third insertion hole 3303, the second insertion hole 3302 is respectively communicated with the second circular groove 3301 and the third insertion hole 3303, and the third insertion hole 3303 is also communicated with the first insertion hole 2102.

In addition, the outer wall of the extension portion 32 further has a plurality of through slots 3304, and the through slots 3304 are also communicated with the second insertion hole 3302 and are all close to the insertion portion 31. In addition, the clamping portion 33 has a plurality of separation grooves 3305 with equal portions at one end facing away from the extension portion 32, the separation grooves 3305 are in one-to-one correspondence with the through grooves 3304, each separation groove 3305 is communicated with the corresponding through groove 3304, the bottom wall of the second circular groove 3301 is further provided with a plurality of first assembly holes uniformly distributed, the first assembly holes and the separation grooves 3305 are staggered, and two ends of the first assembly holes are respectively communicated with the outside and the second circular groove 3301. The plurality of partitioning grooves 3305 divide the holding portion 33 into a plurality of pressing pieces 331 that can swing by a predetermined angle. It should be noted that, a plurality of the first fitting holes are screwed to one end of the second connecting portion 22 facing away from the first connecting portion 21 by a plurality of external bolts.

Further, the chuck assembly 30 further includes a connecting sleeve 34 and a moving rod 35, wherein one end of the connecting sleeve 34 is disposed in the first insertion hole 2102 and the other end is disposed in the first circular groove 2101. It should be noted that, the connecting sleeve 34 is connected to an external pulling component, and the external pulling component defines a position of the connecting sleeve 34, where an end of the connecting sleeve 34 facing away from the first insertion hole 2102 has a second assembly hole 3401, a bottom wall forming the second assembly hole 3401 has a third assembly hole 3402, and one end of the third assembly hole 3402 is connected to the second assembly hole 3401, and the other end is opposite to the third insertion hole 3303. Wherein the moving rod 35 has an abutting end 351 and an insertion end 352, the abutting end 351 is connected to the insertion end 352, and one end of the insertion end 352 sequentially passes through the third insertion hole 3303 and the third assembly hole 3402 and is placed in the second assembly hole 3401 while the abutting end 351 is in contact with the bottom wall forming the second insertion hole 3302.

It should be noted that the third assembly hole 3402 and the second assembly hole 3401 are threaded holes, and the third assembly hole 3402 is in threaded connection with the insertion end 352. It will be appreciated by those skilled in the art that the external pulling assembly has a rotation rod which is screw-coupled to the second assembly hole 3401 and fixedly coupled to the end of the insertion end 352 disposed in the second assembly hole 3401, and screw-coupled directions of the second assembly hole 3401 and the third assembly hole 3402 are identical, that is, when the rotation rod is rotated, the rotation rod is moved forward and backward by a predetermined distance while the insertion end 352 is rotated and also moved forward and backward by a predetermined distance due to the screw-coupled connection of the rotation rod to the second assembly hole 3401.

In addition, when the insertion end 352 is rotated by the torque of the rotating rod and moves in the direction approaching to the connecting sleeve 34, the pressing end presses the wall surface of the second insertion hole 3302, the rotating rod also moves in the direction departing from the connecting sleeve 34, meanwhile, the connecting sleeve 34 and the insertion portion 31 move along with the rotating rod by a predetermined distance, and simultaneously, the inclined surfaces of the extension portions 32 press the wall surface of the chamfer 100, so that the pressing blocks 331 shrink inwards by a predetermined distance, and the clamping portion 33 can clamp the piston disc, and similarly, when the rotating rod drives the insertion end 352 to move in the direction departing from the first circular groove 2101, the rotating rod moves along with the insertion end 352 and presses synchronously to form the bottom wall of the second assembly hole 3401, so that the connecting sleeve 34 moves along with the direction approaching to the clamping portion 33, and simultaneously, the insertion portion 31 moves along with the connecting sleeve 34, so that the pressing blocks 331 shrink inwards by a predetermined distance, and the clamping portion 331 can loosen the piston disc 10.

In order to prevent the deformation chuck from rotating, the outer wall of the second connecting portion 22 has a positioning hole 2201, and the outer wall of the inserting portion 31 has a limiting groove 3101, the positioning hole 2201 faces the limiting groove 3101, and the piston machining fixture further includes a limiting member 40, one end of the limiting member 40 is screwed with the positioning hole 2201 and is disposed in the limiting groove 3101, so that the limiting member 40 limits the rotation of the inserting portion 31, that is, when the inserting portion 31 is subjected to a torsion force, the side wall forming the limiting groove 3101 contacts the end of the limiting member 40, so that the inserting portion 31 cannot rotate.

Wherein, one end of the clamping portion 33 facing away from the extending portion 32 is disposed in the first cavity 101, and the first boss 11 is disposed in the second circular groove 3301, that is, when the plurality of pressing blocks 331 are contracted, one side of the plurality of pressing blocks 331 close to each other presses the first boss 11, thereby defining the position of the first boss 11, and otherwise, the first boss 11 is released.

In summary, the piston machining fixture according to the embodiments of the present utility model is illustrated, which provides advantages of being not easy to fall off, being capable of long-time operation, being firm in structure, etc. for the piston machining fixture.

It should be noted that in the embodiment of the utility model, the piston machining fixture has a simple structure, does not involve complex manufacturing process and expensive materials, and has higher economy. Meanwhile, for manufacturers, the piston machining clamp provided by the utility model is easy to produce, low in cost, more beneficial to control the production cost and further beneficial to product popularization and use.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from such principles.

Claims (9)

1. A piston machining fixture for clamping a piston disc, the piston machining fixture comprising:

a rotating head; and

the chuck assembly is movably arranged at one end of the rotating head, the chuck assembly comprises a deformation chuck, the deformation chuck is connected with the rotating head, one end of the deformation chuck, which deviates from the rotating head, is connected with the piston disc, and when the deformation chuck moves towards the direction close to the rotating head, the deformation chuck clamps the piston disc, otherwise, the piston disc is loosened.

2. The piston machining jig of claim 1, wherein the rotary head includes a first connecting portion and a second connecting portion, the first connecting portion being connected to the second connecting portion, the first connecting portion having a first circular groove, and a bottom wall forming the first circular groove having a first insertion hole, the first insertion hole being in communication with the first circular groove and the outside, respectively, and a bottom wall forming the first insertion hole and facing away from the first circular groove having a chamfer.

3. The piston machining jig of claim 2, wherein the deformation collet has an insertion portion, an extension portion and a clamping portion, both ends of the extension portion being connected to the insertion portion and the clamping portion, respectively, and both the insertion portion and the extension portion being disposed in the first insertion hole, a wall surface of the extension portion adjacent to the clamping portion being a slope, the wall surface of the extension portion adjacent to the clamping portion being in contact with the chamfer.

4. The piston machining jig according to claim 3, wherein the holding portion has a second circular groove, and a bottom wall forming the second circular groove has a second insertion hole, and a bottom wall forming the second insertion hole has a third insertion hole, the second insertion hole being in communication with the second circular groove and the third insertion hole, respectively, and the third insertion hole being also in communication with the first insertion hole.

5. The piston machining fixture of claim 4, wherein the outer wall of the extension portion further has a plurality of through grooves, the through grooves are further communicated with the second insertion hole and are close to the insertion portion, one end of the clamping portion, which is away from the extension portion, is further provided with a plurality of partition grooves, the partition grooves are in one-to-one correspondence with the through grooves, each partition groove is communicated with the corresponding through groove, the bottom wall of the second round groove is further provided with a plurality of uniformly distributed first assembly holes, the first assembly holes are staggered with the partition grooves, and two ends of the first assembly holes are further communicated with the outside and the second round groove.

6. The piston machining jig of claim 5, wherein the collet assembly further comprises a connecting sleeve, one end of the connecting sleeve is disposed in the first insertion hole, the other end is disposed in the first circular groove, one end of the connecting sleeve facing away from the first insertion hole is provided with a second assembly hole, the bottom wall forming the second assembly hole is provided with a third assembly hole, one end of the third assembly hole is communicated with the second assembly hole, and the other end of the third assembly hole is opposite to the third insertion hole.

7. The piston machining fixture of claim 6, wherein the collet assembly further comprises a moving rod having an abutment end and an insertion end, the abutment end being connected to the insertion end, and one end of the insertion end passing through the third insertion hole and the third fitting hole in sequence and being disposed in the second fitting hole while the abutment end is in contact with a bottom wall forming the second insertion hole.

8. The piston machining fixture of claim 7, wherein the third fitting hole and the second fitting hole are threaded holes, the third fitting hole being threadedly connected to the insertion end.

9. The piston machining jig of claim 8, wherein the outer wall of the second connecting portion has a positioning hole, and the outer wall of the insertion portion has a limiting groove, the positioning hole facing the limiting groove, and further comprising a limiting member having one end screwed into the positioning hole and disposed in the limiting groove.