CN219130817U

CN219130817U - Lathe chuck positioning tool

Info

Publication number: CN219130817U
Application number: CN202223571405.XU
Authority: CN
Inventors: 张士迎; 迟玉坤; 王晓东; 梁峰
Original assignee: Meide Group Weihai Co ltd
Current assignee: Meide Group Weihai Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-06
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of lathe chuck positioning devices, in particular to a lathe chuck positioning tool which can enable workpiece positioning and clamping to be more convenient, does not need measurement and effectively improves machining efficiency; including positioning disk, positioning sleeve, screw thread regulating disk, top disk, sleeve pipe, guide post and pretension spring, annular equidistance is equipped with three groups jack catch grooves on the positioning disk, be equipped with the centre bore in the middle of the positioning disk, positioning sleeve passes through the cooperation fixed mounting with the centre bore on the positioning disk, be equipped with the internal thread in the positioning sleeve, screw thread regulating disk passes through the cooperation spiral shell dress with the internal thread on the positioning sleeve, the internal thread right-hand member is equipped with the spacing ring, sleeve pipe fixed mounting is in the positioning sleeve, guide post slidable mounting is on the sleeve pipe, the top and the screw thread regulating disk fixed connection of guide post, pretension spring suit is on sleeve pipe and guide post, and the left end and the inboard of positioning sleeve of pretension spring are connected, the right-hand member and the left end contact of screw thread regulating disk of pretension spring.

Description

Lathe chuck positioning tool

Technical Field

The utility model relates to the technical field of lathe chuck positioning devices, in particular to a lathe chuck positioning tool.

Background

The lathe chuck is a mechanical device for clamping a workpiece, and is a machine tool accessory for clamping and positioning the workpiece by utilizing radial movement of movable claws uniformly distributed on the chuck.

In the lathe chuck in the prior art, sometimes the spindle hole on the chuck is too thick, when the diameter of a workpiece is smaller than that of the spindle hole, the workpiece cannot be positioned and clamped, when an embedded part is machined, the length also needs to be measured, the clamping is inconvenient, and the machining efficiency is affected.

Disclosure of Invention

In order to solve the technical problems, the lathe chuck positioning tool provided by the utility model has the advantages that the workpiece positioning and clamping are more convenient, the measurement is not needed, and the machining efficiency is effectively improved.

The lathe chuck positioning tool comprises a positioning disc, a positioning sleeve, a thread adjusting disc, a top disc, a sleeve, a guide post and a pre-tightening spring, wherein three groups of claw grooves are annularly and equidistantly arranged on the positioning disc, a central hole is formed in the middle of the positioning disc, the positioning sleeve is fixedly arranged on the positioning disc through matching with the central hole, an internal thread is arranged in the positioning sleeve, the thread adjusting disc is fixedly arranged on the positioning sleeve through matching with the internal thread, a limiting ring is arranged at the right end of the internal thread, the top disc is fixedly arranged on the thread adjusting disc through matching with the limiting ring, a hexagonal jack is arranged on the top disc, the sleeve is fixedly arranged in the positioning sleeve, the guide post is slidably arranged on the sleeve, the top end of the guide post is fixedly connected with the thread adjusting disc, the pre-tightening spring is sleeved on the sleeve and the guide post, the left end of the pre-tightening spring is connected with the inner side of the positioning sleeve, and the right end of the pre-tightening spring is contacted with the left end of the thread adjusting disc.

According to the lathe chuck positioning tool, the inner walls of the three groups of claw grooves are respectively connected with a slide pad.

According to the lathe chuck positioning tool, the positioning sleeve is sleeved with the fastening gasket, and the top end of the fastening gasket is connected with the bottom end of the positioning disc.

According to the lathe chuck positioning tool, the sliding sleeve is arranged on the inner wall of the sleeve.

According to the lathe chuck positioning tool, the bottom end edge of the positioning sleeve is provided with the round edge.

According to the lathe chuck positioning tool, the upper edge and the lower edge of the positioning disc are both set to be chamfer edges.

According to the lathe chuck positioning tool, the positioning disc is made of stainless steel materials.

Compared with the prior art, the utility model has the beneficial effects that: when the lathe chuck is used, the positioning sleeve is inserted into a main shaft hole of the lathe chuck, the positioning sleeve and the main shaft hole are in interference fit, the clamping jaw on the chuck can radially slide in a clamping jaw groove to clamp a workpiece, when the lathe chuck is used for clamping, the end face of the top plate and the end face of the positioning plate are horizontal initially, a worker can insert the hexagonal jack through a hexagonal wrench according to the length of the workpiece, and rotate the top plate, so that the top plate drives the threaded adjusting plate to rotate, the threaded adjusting plate moves inwards under the cooperation of threads, the depth of the threaded adjusting plate in an internal thread is adjusted, the pre-tightening spring is compressed in the inward adjustment process of the threaded adjusting plate, a pre-tightening force is outwards provided to prevent the condition that the threaded adjusting plate automatically rotates in the machining process, then one end of the workpiece is propped against the top plate, the positioning and clamping of the workpiece can be conveniently carried out, the positioning and clamping of the workpiece are more convenient, measurement is not needed, and the machining efficiency is effectively improved.

Drawings

FIG. 1 is a schematic view of an upper axial structure of the present utility model;

FIG. 2 is a schematic view of the lower axial structure of the present utility model;

FIG. 3 is a schematic upper side view of the present utility model;

FIG. 4 is a schematic view of the A-A cross-sectional structure of the present utility model;

the reference numerals in the drawings: 1. a positioning plate; 2. a claw groove; 3. positioning a sleeve; 4. an internal thread; 5. a threaded adjusting disk; 6. a limiting ring; 7. a top plate; 8. hexagonal jack; 9. a sleeve; 10. a guide rod; 11. a pre-tightening spring; 12. a slide pad; 13. a fastening washer; 14. a sliding sleeve; 15. chamfering edges; 16. chamfering edges; 17. a central bore.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, the lathe chuck positioning tool comprises a positioning disc 1, a positioning sleeve 3, a thread adjusting disc 5, a top disc 7, a sleeve 9, a guide post 10 and a pre-tightening spring 11, wherein three groups of claw grooves 2 are annularly and equidistantly arranged on the positioning disc 1, a central hole 17 is formed in the middle of the positioning disc 1, the positioning sleeve 3 is fixedly arranged on the positioning disc 1 through the cooperation with the central hole 17, an internal thread 4 is arranged in the positioning sleeve 3, the thread adjusting disc 5 is screwed on the positioning sleeve 3 through the cooperation with the internal thread 4, the right end of the internal thread 4 is provided with a limiting ring 6, the top disc 7 is fixedly arranged on the thread adjusting disc 5 through the cooperation with the limiting ring 6, a hexagonal jack 8 is formed in the top disc 7, the sleeve 9 is fixedly arranged in the positioning sleeve 3, the guide post 10 is slidably arranged on the sleeve 9, the top end of the guide post 10 is fixedly connected with the thread adjusting disc 5, the pre-tightening spring 11 is sleeved on the sleeve 9 and the guide post 10, the left end of the pre-tightening spring 11 is connected with the inner side of the positioning sleeve 3, the right end of the pre-tightening spring 11 is fixedly contacts with the left end of the thread adjusting disc 5; firstly, when in use, the positioning sleeve 3 is inserted into a main shaft hole of a lathe chuck, the positioning sleeve 3 and the main shaft hole are in interference fit, a claw on the chuck can slide radially in a claw groove 2 so as to clamp a workpiece, when in clamping, the end face of the top plate 7 and the end face of the positioning plate 1 are horizontal initially, a worker can insert the positioning sleeve into the hexagonal jack 8 through a hexagonal wrench according to the length of the workpiece, and rotate the top plate 7, so that the top plate 7 drives the threaded adjusting plate 5 to rotate, under the cooperation of threads, the threaded adjusting plate 5 moves inwards so as to adjust the depth of the threaded adjusting plate 5 in an internal thread 4, in the internal adjusting process of the threaded adjusting plate 5, a pre-tightening spring 11 is compressed so as to provide a pre-tightening force outwards, the situation that the threaded adjusting plate 5 rotates automatically in the processing process is prevented, and then one end of the workpiece is propped against the top plate 7, so that the positioning and clamping of the workpiece can be conveniently performed, the positioning and clamping of the workpiece are not required, and the processing efficiency is effectively improved.

According to the lathe chuck positioning tool, the inner walls of the three groups of claw grooves 2 are respectively connected with a slide pad 12; by providing the slide pad 12, the sliding of the claw on the claw groove 2 can be smoother, and the use reliability can be improved.

According to the lathe chuck positioning tool disclosed by the utility model, the positioning sleeve 3 is sleeved with the fastening washer 13, and the top end of the fastening washer 13 is connected with the bottom end of the positioning disc 1; by providing the fastening washer 13, the positioning disk 1 can be more tightly mounted on the chuck, and the use reliability can be improved.

According to the lathe chuck positioning tool, the sliding sleeve 14 is arranged on the inner wall of the sleeve 9; by providing the slide sleeve 14, the guide post 10 can slide in the sleeve 9 more smoothly, and the use reliability can be improved.

According to the lathe chuck positioning tool, the bottom edge of the positioning sleeve 3 is provided with the rounded edge 15; through setting up the chamfer limit 15, can make the locating sleeve 3 more convenient insert in the main shaft hole of chuck, improve the reliability of use.

According to the lathe chuck positioning tool, the upper edge and the lower edge of the positioning disc 1 are both provided with chamfer edges 16; by setting the upper and lower edges of the positioning disk 1 as chamfer edges 16, scratch can be effectively prevented from occurring when the positioning disk 1 is mounted, and the use reliability is improved.

According to the lathe chuck positioning tool, the positioning disc 1 is made of stainless steel; by adopting the stainless steel material, rust on the surface of the puck 1 can be effectively prevented.

According to the lathe chuck positioning tool, when the lathe chuck positioning tool is used, the positioning sleeve 3 is inserted into a main shaft hole of a lathe chuck, the positioning sleeve 3 and the main shaft hole are in interference fit, a jaw on the chuck can slide radially in the jaw groove 2, so that a workpiece is clamped, during clamping, the end face of the top plate 7 is horizontal to the end face of the positioning plate 1 at first, a worker can insert the positioning tool onto the hexagonal jack 8 through a hexagonal wrench according to the length of the workpiece, rotate the top plate 7, enable the top plate 7 to drive the threaded adjusting plate 5 to rotate, enable the threaded adjusting plate 5 to move inwards under the cooperation of threads, so that the depth of the threaded adjusting plate 5 in the internal threads 4 is adjusted, a pre-tightening spring 11 is compressed in the process of inwards adjusting the threaded adjusting plate 5, so that a pre-tightening force is outwards provided, the condition that the threaded adjusting plate 5 rotates automatically is prevented, then one end of the workpiece is abutted against the top plate 7, and finally the workpiece is clamped by the jaw.

The lathe chuck positioning tool has the advantages that the installation mode, the connection mode or the setting mode of the lathe chuck positioning tool is a common mechanical mode, and the lathe chuck positioning tool can be implemented as long as the beneficial effects of the lathe chuck positioning tool can be achieved; those skilled in the art will readily install and operate the device in accordance with the instructions accompanying thereto.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The lathe chuck positioning tool is characterized by comprising a positioning disc (1), a positioning sleeve (3), a thread adjusting disc (5), a top disc (7), a sleeve (9), a guide post (10) and a pre-tightening spring (11), wherein three groups of claw grooves (2) are annularly and equidistantly arranged on the positioning disc (1), a central hole (17) is formed in the middle of the positioning disc (1), the positioning sleeve (3) is fixedly arranged on the positioning disc (1) through the matching with the central hole (17), an internal thread (4) is arranged in the positioning sleeve (3), the thread adjusting disc (5) is arranged on the positioning sleeve (3) through the matching with the internal thread (4), a limiting ring (6) is arranged at the right end of the internal thread (4), the top disc (7) is fixedly arranged on the thread adjusting disc (5) through the matching with the limiting ring (6), a hexagonal jack (8) is arranged on the top disc (7), the sleeve (9) is fixedly arranged in the positioning sleeve (3), the guide post (10) is slidably arranged on the sleeve (9), the top end of the guide post (10) is fixedly connected with the pre-tightening spring (11) and is fixedly connected with the left end of the guide post (11) through the limiting ring (4), the right end of the pre-tightening spring (11) is contacted with the left end of the threaded adjusting disc (5).

2. Lathe chuck positioning fixture according to claim 1, characterized in that the inner walls of the three groups of jaw grooves (2) are all connected with slide pads (12).

3. Lathe chuck positioning fixture according to claim 2, characterized in that the positioning sleeve (3) is sleeved with a fastening washer (13), and the top end of the fastening washer (13) is connected with the bottom end of the positioning disc (1).

4. A lathe chuck positioning fixture according to claim 3, characterised in that the inner wall of the sleeve (9) is provided with a sliding sleeve (14).

5. Lathe chuck positioning fixture according to claim 4, characterized in that the bottom edge of the positioning sleeve (3) is provided with a rounded edge (15).

6. Lathe chuck positioning fixture according to claim 5, characterized in that the upper and lower edges of the positioning disk (1) are provided with chamfer edges (16).

7. Lathe chuck positioning fixture according to claim 6, characterized in that the positioning disk (1) is made of stainless steel.