CN115302285A

CN115302285A - Lathe clamp assembly and lathe

Info

Publication number: CN115302285A
Application number: CN202211243778.6A
Authority: CN
Inventors: 李家宇
Original assignee: Shenyang Vycon New Energy Technology Co ltd
Current assignee: Shenyang Vycon New Energy Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2022-11-08

Abstract

The invention discloses a lathe fixture component and a lathe, wherein the lathe fixture component comprises: the clamp comprises a clamp main body, wherein one end of the clamp main body is provided with an accommodating groove, and the bottom of the accommodating groove is provided with a positioning step; the fixture cover plate is arranged at the open end of the containing groove and fixedly connected with the fixture main body in a detachable mode, a machining hole is formed in the fixture cover plate, a clamping space for clamping a workpiece is formed between the fixture cover plate and the positioning step, and the fixture cover plate is used for abutting against one end of the workpiece. The lathe clamp assembly is aligned on the chuck in a clamping mode, namely, alignment is not needed in each clamping of a workpiece, batch processing can be directly carried out after the clamping, the clamping speed is increased, and the processing efficiency is improved.

Description

Lathe clamp assembly and lathe

Technical Field

The invention relates to the technical field of lathe fixture components, in particular to a lathe fixture component and a lathe.

Background

In the related art, the three-jaw chuck needs to turn straight soft jaws which are consistent with the excircle of a workpiece, and pressure is radially applied to the excircle of the workpiece so as to clamp the workpiece in the largest area, so that the inner hole part of the workpiece can be turned. On the one hand, because the inner hole and the end face of the workpiece have the tolerance control precision of 0.02mm, the excircle cylindricity of the clamping of the existing chuck cannot be guaranteed, the manual copper rod knocking alignment is required for each clamping, and the workpiece is not only wasted in time but also knocked and damaged. On the other hand, the clamping force of the hydraulic three-jaw chuck is too large, and three points radially apply pressure to the excircle of the workpiece, so that the hollow workpiece is extruded and deformed, and the turning precision of the inner hole is influenced. The workpiece is formed by bonding the laminated sheets by glue, and the workpiece is broken (cracked) when the chuck is clamped with a part.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the lathe clamp assembly is aligned in clamping on the chuck, namely, alignment is not needed in each clamping of the workpiece, batch processing can be directly carried out after the clamping, the clamping speed is increased, and the processing efficiency is improved.

A lathe fixture assembly according to an embodiment of the first aspect of the invention, comprising: the clamp comprises a clamp main body, wherein one end of the clamp main body is provided with an accommodating groove, and the bottom of the accommodating groove is provided with a positioning step; the fixture cover plate is arranged at the open end of the containing groove and fixedly connected with the fixture main body in a detachable mode, a machining hole is formed in the fixture cover plate, a clamping space for clamping a workpiece is formed between the fixture cover plate and the positioning step, and the fixture cover plate is used for abutting against one end of the workpiece.

According to the lathe fixture component provided by the embodiment of the invention, the lathe fixture component is clamped and aligned on the chuck, namely, alignment is not needed in each clamping of a workpiece, and batch processing can be directly carried out after the clamping, so that the clamping speed is increased, and the processing efficiency is improved.

According to some embodiments of the present invention, the bottom of the receiving groove is provided with a plurality of the positioning steps, the plurality of the positioning steps are arranged at intervals in an axial direction of the jig main body, and radial dimensions of the plurality of the positioning steps are different.

According to some embodiments of the invention, the clamp cover plate comprises: the connecting part is arranged on one side, facing the clamp body, of the plane part, the connecting part is connected with the clamp body, and the plane part is abutted to the workpiece.

According to some embodiments of the invention, a distance between any one of the positioning steps and the flat portion is the same.

According to some embodiments of the invention, a distance between any one of the positioning steps and the flat portion is different.

According to some embodiments of the invention, an inner wall of the clamp cover plate is provided with a first threaded portion, an outer wall of the clamp body is provided with a second threaded portion, and the first threaded portion and the second threaded portion are threadedly coupled.

According to some embodiments of the invention, the clamp cover plate is provided with a fastening round hole on the outer side for screwing the clamp cover plate on the clamp body; or the outer side of the clamp cover plate is provided with a locking part for screwing the clamp cover plate on the clamp main body.

According to some embodiments of the invention, an inner diameter of the machining hole is smaller than a radial dimension of the positioning step.

A lathe according to an embodiment of the second aspect of the invention comprises: a lathe body; the chuck is in transmission connection with the lathe body; and the lathe clamp assembly is characterized in that the clamp body is fixed on the chuck and is in transmission connection with the chuck.

According to some embodiments of the invention, the lathe further comprises: the jack catch, the jack catch is fixed in the chuck and with the chuck transmission is connected, the anchor clamps main part orientation one side of jack catch is provided with the joint step, the jack catch with joint step joint.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a portion of a lathe according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a construction of a lathe fixture assembly according to an embodiment of the invention;

fig. 3 is a schematic structural diagram of a eave wrench according to an embodiment of the present invention.

Reference numerals are as follows:

100. a lathe fixture assembly;

10. a clamp body; 11. accommodating grooves; 12. positioning a step; 13. clamping the steps;

20. a clamp cover plate; 21. machining a hole; 22. a planar portion; 23. a connecting portion;

30. a hook end wrench; 31. hooking the head;

200. a chuck; 300. a claw; 400. and (5) a workpiece.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

Referring now to fig. 1-3, a lathe clamp assembly 100 according to an embodiment of the present invention is described, and a lathe having the lathe clamp assembly 100 is also provided.

As shown in fig. 1 and 2, a lathe jig assembly 100 according to an embodiment of the present invention includes: the clamp comprises a clamp main body 10 and a clamp cover plate 20, wherein an accommodating groove 11 is formed in one end of the clamp main body 10, a positioning step 12 is arranged at the bottom of the accommodating groove 11, the clamp cover plate 20 is covered on an opening end of the accommodating groove 11, the clamp cover plate 20 is detachably and fixedly connected with the clamp main body 10, a machining hole 21 is formed in the clamp cover plate 20, a clamping space for clamping a workpiece 400 is formed between the clamp cover plate 20 and the positioning step 12, and the clamp cover plate 20 is used for abutting against one end of the workpiece 400. In this manner, the workpiece 400 is sandwiched between the jig main body 10 and the jig cover plate 20, that is, the workpiece 400 is fixed by end face pressing, so that the workpiece 400 is not damaged.

When the workpiece 400 is interposed between the jig main body 10 and the jig cover 20, a batch of workpieces 400 can be machined by only once aligning the lathe jig assembly 100.

And, the work piece 400 is that the terminal surface closely compresses tightly fixedly, and lathe fixture subassembly 100 carries out the amesdial of precision 0.001mm and makes the table alignment, will make like this and guarantee 0.02mm or higher precision between the hole of every work piece 400 and holding tank 11 diapire and the anchor clamps apron 20 to make the processing of work piece 400 more accurate.

Therefore, the lathe fixture assembly 100 is aligned on the chuck 200, namely, alignment is not needed for each clamping of the workpiece 400, batch processing can be directly carried out after the clamping, the clamping speed is increased, and the processing efficiency is improved.

Wherein the workpiece 400 may be a stack.

Further, as shown in fig. 1, the bottom of the receiving groove 11 is provided with a plurality of positioning steps 12, the plurality of positioning steps 12 are provided at intervals in the axial direction of the jig main body 10, and the plurality of positioning steps 12 are different in radial dimension. That is to say, the plurality of positioning steps 12 are disposed at the bottom of the accommodating groove 11, so that a clamping space for workpieces 400 with different sizes can be formed between the clamp main body 10 and the clamp cover plate 20, and thus the workpieces 400 with different sizes can be clamped between the clamp main body 10 and the clamp cover plate 20, and further the adaptability of the lathe clamp assembly 100 can be improved, that is, on one hand, the lathe clamp assembly 100 can be prevented from being frequently replaced when the workpieces 400 with different sizes are processed, so that the processing speed of the workpieces 400 is improved, and on the other hand, the processing cost of the lathe clamp assembly 100 can be saved.

Further, as shown in fig. 2, the jig cover plate 20 includes: the flat surface portion 22 and the connecting portion 23, the connecting portion 23 is provided on the side of the flat surface portion 22 facing the jig main body 10, the connecting portion 23 is connected to the jig main body 10, and the flat surface portion 22 is in contact with the workpiece 400. That is, the clamp cover plate 20 may be divided into a flat portion 22 and a connecting portion 23, wherein a side of the flat portion 22 facing the positioning step 12 is a flat surface, and the flat surface may improve the fitting stability between the clamp cover plate 20 and the workpiece 400, thereby improving the processing stability when the workpiece 400 is processed. And, the connecting portion 23 may be connected to the jig main body 10, so that the jig cover 20 may be fixed to the jig main body 10 by the connection of the connecting portion 23 and the jig main body 10, and the workpiece 400 may be fixed.

Wherein the distance between any one of the positioning steps 12 and the flat surface portion 22 is the same. With the arrangement, when the workpieces 400 with different outer diameters are clamped on the positioning step 12 and the axial sizes of the workpieces 400 are unchanged, the distances between the different positioning steps 12 and the plane part 22 are also the same, so that the axial sizes of the different workpieces 400 can be limited.

And the distance between any one of the positioning steps 12 and the flat surface portion 22 is different. With the arrangement, when the workpieces 400 with different outer diameters are clamped on the positioning steps 12 and the axial sizes of the workpieces 400 are changed, the distances between the different positioning steps 12 and the plane part 22 are different, so that the axial sizes of the different workpieces 400 can be limited.

Wherein, the inner wall of the clamp cover plate 20 is provided with a first thread portion, the outer wall of the clamp body 10 is provided with a second thread portion, and the first thread portion and the second thread portion are in threaded connection. With this arrangement, the fixture cover plate 20 and the fixture main body 10 are fixed to each other by the first thread portion and the second thread portion between the fixture cover plate 20 and the fixture main body 10. And, the fixture cover plate 20 and the fixture main body 10 are fixedly connected through the first thread part and the second thread part, so that the distance between the fixture cover plate 20 of the positioning step 12 can be fixed and also can be adjusted. For example, the second threaded portion is long enough, when the clamp cover plate 20 is fixedly connected to the clamp body 10, the distance between the clamp cover plate 20 and the positioning step 12 is not changed, i.e. the clamping length between the clamp cover plate 20 and the clamp body 10 is changed, so that the axial length of the clamping space between different positioning steps 12 and the clamp cover plate 20 is not changed. For another example, the second threaded portion is relatively short, and when the clamp cover plate 20 and the clamp main body 10 are fixedly connected, the distance between the clamp cover plate 20 and the positioning step 12 changes, that is, the clamping length between the clamp cover plate 20 and the clamp main body 10 cannot change, so that the axial length of the clamping space between different positioning steps 12 and clamp cover plates 20 changes.

In addition, referring to fig. 3, the clamp cover plate 20 is provided with a fastening circular hole at an outer side thereof for screwing the clamp cover plate 20 to the clamp body 10. In this manner, the clamp cover plate 20 can be fixed to the clamp body 10 by a chuck wrench. Specifically, the chuck wrench is provided with the hook 31, and the hook 31 can be matched with a fastening circular hole on the clamp cover plate 20, so that the clamp cover plate 20 can be fixed on the clamp main body 10 through the hook wrench 30, and thus, the connection strength between the clamp cover plate 20 and the clamp main body 10 is higher.

Alternatively, the outer side of the clip cover 20 is provided with a locking portion for screwing the clip cover 20 to the clip main body 10. That is, the clamp cover 20 may be constructed like a nut such that the clamp cover 20 can be screwed to the clamp body 10 by a wrench.

Wherein, as described with reference to fig. 2, the inner diameter of the machining hole 21 is smaller than the radial dimension of the positioning step 12. With this arrangement, the inner diameter of the machining hole 21 is set to be smaller than the radial dimension of the positioning step 12, so that when the workpiece 400 is fitted between the positioning step 12 and the fixture cover plate 20, one end of the workpiece 400 can be fitted with the positioning step 12, and in addition, the other end of the workpiece 400 can abut against the fixture cover plate 20, so that the workpiece 400 can be stably clamped between the fixture main body 10 and the fixture cover plate 20, and the machining stability of the workpiece 400 can be improved.

Referring to fig. 1, a lathe according to a second aspect of the present invention includes: the lathe comprises a lathe body, a chuck 200 and a lathe clamp assembly 100, wherein the chuck 200 is in transmission connection with the lathe body, and a clamp body 10 is fixed on the chuck 200 and is in transmission connection with the chuck 200. Like this, be provided with the drive shaft on the lathe body, the drive shaft drives chuck 200 circumferential direction, drives the circumferential direction of lathe fixture subassembly 100 simultaneously in chuck 200 circumferential direction to can be through the inner wall of cutter cutting work piece 400, and then realize the processing to work piece 400, and, because work piece 400 is pressed from both sides and is established between anchor clamps main part 10 and anchor clamps apron 20, can promote the assembly stability and the processing stability of work piece 400 like this.

Referring to fig. 1, the lathe further includes: the clamping jaw 300 is fixed on the chuck 200, the clamping jaw 300 is in transmission connection with the chuck 200, one side of the clamp body 10 facing the clamping jaw 300 is provided with a clamping step 13, and the clamping jaw 300 is clamped with the clamping step 13. That is, the chuck 200 rotates to rotate the jaws 300, and the jaws 300 rotate to rotate the lathe fixture assembly 100. Wherein, be provided with joint step 13 on the anchor clamps main part 10, make jack catch 300 cooperate with joint step 13 like this to can realize the joint cooperation between anchor clamps main part 10 and the jack catch 300.

The processing method of the workpiece 400 is described below.

Firstly, the jaw 300 of the lathe is adjusted to an open vertical diameter which is consistent with the clamping step 13 of the clamp body 10, the clamp body 10 is clamped on the jaw 300, and then a dial indicator is used for making a dial indicator and aligning. Wherein, the outside of anchor clamps main part 10 has the benchmark excircle of special utensil alignment, places the probe of amesdial outside anchor clamps main part 10 benchmark excircle position and carries out the alignment, and the alignment precision is higher than 0.01mm can.

Then, the workpiece 400 is placed in the accommodating groove 11 of the clamp main body 10, the reference plane and the positioning step 12 are arranged in the clamp main body 10, the workpiece 400 is placed in a manner of being attached to the reference plane and the positioning step 12, then the clamp cover plate 20 is screwed into the external thread of the clamp main body 10, the hook 31 of the hook wrench 30 is clamped into the fastening round hole of the clamp cover plate 20, and finally the special hook wrench 30 is used for screwing.

Next, the machining tool and the reference plane of the end face of the clamp cover plate 20 are subjected to tool setting operation of the Z axis of the machine tool coordinate system, and the inner hole of the workpiece 400 can be directly turned by adding the machining depth in the Z direction of the machine tool to the thickness of the end face of the clamp cover plate 20.

Finally, after the machining, the clamp cover plate 20 is loosened by the hook wrench 30, and then the next workpiece 400 can be machined.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lathe clamp assembly, comprising:

the clamp comprises a clamp main body (10), wherein one end of the clamp main body (10) is provided with an accommodating groove (11), and the bottom of the accommodating groove (11) is provided with a positioning step (12);

the fixture cover plate (20) is arranged at the opening end of the accommodating groove (11) in a covering mode and is detachably and fixedly connected with the fixture main body (10), a machining hole (21) is formed in the fixture cover plate (20), a clamping space for clamping a workpiece (400) is formed between the fixture cover plate (20) and the positioning step (12), and the fixture cover plate (20) is used for abutting against one end of the workpiece (400).

2. The lathe jig assembly according to claim 1, wherein the bottom of the receiving groove (11) is provided with a plurality of the positioning steps (12), the plurality of the positioning steps (12) are provided at intervals in the axial direction of the jig main body (10), and the plurality of the positioning steps (12) are different in radial dimension.

3. Lathe clamp assembly according to claim 2, characterized in that the clamp cover plate (20) comprises: plane portion (22) and connecting portion (23), connecting portion (23) set up in plane portion (22) orientation one side of anchor clamps main part (10), connecting portion (23) with anchor clamps main part (10) are connected, plane portion (22) with work piece (400) butt.

4. The lathe clamp assembly according to claim 3, wherein the distance between any one of the positioning steps (12) and the flat portion (22) is the same.

5. The lathe clamp assembly according to claim 3, wherein the distance between any one of the positioning steps (12) and the flat portion (22) is different.

6. The lathe clamp assembly according to claim 1, wherein the inner wall of the clamp cover plate (20) is provided with a first threaded portion, the outer wall of the clamp body (10) is provided with a second threaded portion, and the first threaded portion and the second threaded portion are threadedly connected.

7. Lathe clamp assembly according to claim 6, characterized in that the clamp cover plate (20) is provided with fastening circular holes on its outside for screwing the clamp cover plate (20) onto the clamp body (10); or the like, or, alternatively,

and a locking part is arranged on the outer side of the clamp cover plate (20) and is used for screwing the clamp cover plate (20) on the clamp main body (10).

8. Lathe fixture assembly according to claim 1, characterized in that the inner diameter of the machining bore (21) is smaller than the radial dimension of the positioning step (12).

9. A lathe, comprising:

a lathe body;

the chuck (200), the said chuck (200) and said lathe body are connected in a driving way;

the lathe clamp assembly of any one of claims 1 to 8, said clamp body (10) being fixed to said chuck (200) and drivingly connected to said chuck (200).

10. The lathe of claim 9, further comprising: jack catch (300), jack catch (300) are fixed in chuck (200) and with chuck (200) transmission is connected, anchor clamps main part (10) orientation one side of jack catch (300) is provided with joint step (13), jack catch (300) with joint step (13) joint.