CN209902269U

CN209902269U - Inner poking thimble

Info

Publication number: CN209902269U
Application number: CN201920756918.7U
Authority: CN
Inventors: 陈琪; 阮孟春; 高思帅; 曹光福; 李海建
Original assignee: Zhejiang Jack Machine Tool Ltd By Share Ltd
Current assignee: Zhejiang Jack Machine Tool Ltd By Share Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-01-07
Anticipated expiration: 2029-05-23

Abstract

The utility model belongs to the technical field of machining, in particular to an inner poking thimble; including thimble axle, top handle, the thimble axle rotates to be set up in top handle, and the both ends of thimble axle stretch out outside top handle respectively, and the one end of thimble axle is for the link, the other end detachably that are connected with its pivoted motor of drive be provided with the attach fitting of being connected with the work piece, the attach fitting can be along with thimble axle synchronous rotation. The utility model discloses a attach fitting realizes thimble axle and is processed being connected of work piece, has solved among the prior art and has processed this type of part and need many times the clamping and carry out the technical problem that drives, has improved work efficiency and machining precision greatly.

Description

Inner poking thimble

The technical field is as follows:

the utility model belongs to the technical field of machining, refer in particular to an interior thimble of stirring.

Background art:

at present, when shaft parts with large thimble holes are subjected to surface processing, the shaft parts cannot be directly jacked at two end parts of the parts through thimbles on a machine tool, and need to be clamped on the outer surfaces of the parts to drive the parts to rotate. Therefore, after one clamping, the part without clamping can be processed, and the clamping part needs to be clamped again to the processed part for processing. Therefore, a part needs to be clamped for multiple times during machining, so that machining precision is low (including form and position tolerance, movement degree, coaxiality, concentricity and the like), and machining efficiency is low.

The invention content is as follows:

the utility model aims at providing a clamping just can realize stirring the thimble in to the processing of the axle type part that has big thimble hole and trough of belt.

The utility model discloses a realize like this:

the utility model provides an interior thimble of stirring, includes thimble axle, top handle, and the thimble axle rotates to be set up in the top handle, and the both ends of thimble axle stretch out outside the top handle respectively, and the one end of thimble axle is for the link of being connected with its pivoted motor of drive, other end detachably be provided with the attach fitting of being connected with the work piece, the attach fitting can rotate along with the thimble axle is synchronous.

In the internal shifting thimble, the tip handle comprises a first tip handle and a second tip handle, the first tip handle and the second tip handle are respectively provided with a first flange part and a second flange part, and the first flange part and the second flange part are fixedly connected through screws.

In the internal shifting thimble, the first thimble handle is provided with an inserting part at one end adjacent to the second flange part, the second thimble handle is provided with an inserting hole, and the inserting part is inserted in the inserting hole.

In the internal shifting thimble, the thimble shaft is connected with the first thimble handle and the second thimble handle through the first bearing and the second bearing respectively.

In the above-mentioned one kind stir thimble inside, the link sets firmly the shaft coupling.

In the internal shifting thimble, a first hole is formed in one end, opposite to the first flange portion, of the first thimble handle, a first bearing is arranged in the first hole, a locating sleeve is sleeved on the thimble shaft between the coupler and the first bearing, one end of the locating sleeve abuts against the end face of the first bearing, and the other end of the locating sleeve abuts against the end face of the coupler.

In the internal shifting thimble, a second reaming hole is formed in the second tip handle, the second bearing is arranged in the second reaming hole, and the end face of the insertion part axially limits the second bearing.

In foretell thimble is stirred in one kind, still include the dismantlement cover, the outer cylinder of first flange portion is provided with the external screw thread, and the hole of dismantling the cover is the internal thread hole, dismantles the cover can with first flange portion threaded connection.

In the internal shifting thimble, the inner hole of the connector is a spline hole or a raised line is axially arranged in the inner hole, the corresponding part of the thimble shaft is a spline part or a groove connected with the raised line is axially arranged along the thimble shaft, and the shape of the outer cylindrical surface of the connector is matched with the shape of the inner hole on the processed piece.

In the internal shifting thimble, the end face of the thimble shaft provided with the connecting joint is provided with a limiting piece for limiting the connecting joint, and the limiting piece is fixed on the thimble shaft through a screw.

Compared with the prior art, the utility model outstanding advantage is:

1. the utility model realizes the connection of the thimble shaft and the processed workpiece through the connecting joint, solves the technical problem that the processing of the parts needs to be driven by clamping for many times in the prior art, and greatly improves the working efficiency and the processing precision;

2. the utility model discloses easy dismounting, the work piece loading and unloading are convenient.

Description of the drawings:

fig. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is a schematic view of a first apical shank of the present invention.

Figure 3 is a schematic view of a second apical shank of the present invention.

Fig. 4 is a schematic view of the thimble shaft of the present invention.

Fig. 5 is a front view of the detachment sleeve of the present invention.

Fig. 6 is a cross-sectional view of the removal sleeve of the present invention.

Fig. 7 is a front view of the connector of the present invention.

Fig. 8 is a front view of the spacing washer of the present invention.

Fig. 9 is a cross-sectional view of the spacing washer of the present invention.

Fig. 10 is one of left side views of the work of the present invention.

Fig. 11 is a second left side view of the workpiece according to the present invention.

In the figure: 1. a thimble shaft; 2. connecting a joint; 3. a first tip handle; 4. a second tip handle; 5. a first flange; 6. a second flange portion; 7. a plug-in part; 8. inserting holes; 9. a first bearing; 10. a second bearing; 11. a coupling; 12. first reaming; 13. a positioning sleeve; 14. second reaming; 15. a limiting sheet; 16. disassembling the sleeve; 17. a workpiece to be processed; 18. a large thimble hole.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 11:

the utility model provides an interior thimble of stirring, includes thimble axle 1, thimble handle, and thimble axle 1 rotates to be set up in the thimble handle, and the both ends of thimble axle 1 stretch out outside the thimble handle respectively, and the one end of thimble axle 1 is provided with the attach fitting 2 of being connected with work piece 17 for the link, other end detachably that are connected with its pivoted motor of drive, attach fitting 2 can rotate along with thimble axle 1 is synchronous. The utility model discloses a top handle is installed on the lathe.

For convenient connection, the utility model discloses the link is provided with shaft coupling 11, and shaft coupling 11 is through the screw and the 1 fixed connection of thimble shaft of radial setting. The direct-drive motor can be directly connected with the motor through the coupler 11, and the direct-drive effect is achieved. Of course, the connecting end can also be connected with the motor through a synchronous belt transmission mechanism or a gear transmission mechanism.

The utility model discloses mainly used processing has the processing of the part of big thimble hole 18 and middle trough of belt. The thimble shaft 1 is driven to rotate through a power source, and then the connecting joint 2 is driven to rotate, and finally the rotation of the processed workpiece 17 is realized. Through the utility model discloses can avoid a lot of clamping, a clamping can, improved work efficiency height and machining precision, reduced the processing degree of difficulty.

As shown in fig. 1 to 3, the tip shank includes a first tip shank 3 and a second tip shank 4, the first tip shank 3 and the second tip shank 4 are respectively provided with a first flange portion 5 and a second flange portion 6, and the first flange portion 5 and the second flange portion 6 are fixedly connected by screws.

In order to improve the connection strength and the coaxiality of the inner holes of the first tip handle 3 and the second tip handle 4, an inserting part 7 is arranged at one end of the first tip handle 3 adjacent to the second flange part 6, an inserting hole 8 is formed in the second tip handle 4, and the inserting part 7 is inserted in the inserting hole 8.

The thimble shaft 1 is connected with the first thimble handle 3 and the second thimble handle 4 through the first bearing 9 and the second bearing 10 respectively.

Further, the first center handle 3 is provided with a first counterbore 12 opposite to the end of the first flange part 5, the first bearing 9 is arranged in the first counterbore 12, during installation, the outer ring of the first bearing 9 is tightly matched and connected with the inner wall of the first counterbore 12, and the inner ring of the first bearing 9 is tightly matched and connected with the outer wall of the thimble shaft 1. A positioning sleeve 13 is sleeved on the thimble shaft 1 between the coupler 11 and the first bearing 9, one end of the positioning sleeve 13 is abutted against the end face of the first bearing 9, and the other end of the positioning sleeve 13 is abutted against the end face of the coupler 11. Because a step surface is formed between the first counterbore 12 and the inner hole of the first center shank 3, the first bearing 9 can be positioned by combining the positioning sleeve 13.

Similarly, a second counterbore 14 is arranged in the second center shank 4, the second bearing 10 is arranged in the second counterbore 14, a step surface is formed between the second counterbore 14 and the inner hole of the second center shank 4, and the end surface of the re-inserting part 7 axially limits the second bearing 10. During installation, the outer ring of the second bearing 10 is tightly matched and connected with the inner wall of the second counterbore 14, and the inner ring of the second bearing 10 is tightly matched and connected with the outer wall of the thimble shaft 1. The flexible rotation of the thimble shaft 1 is realized through the first bearing 9 and the second bearing 10.

In order to facilitate connection and realize synchronous rotation of the connector lug 2 and the thimble shaft 1, an inner hole of the connector lug 2 is a spline hole or a raised strip is axially arranged in the inner hole, as shown in fig. 7, a corresponding part of the thimble shaft 1 is a spline part or a groove connected with the raised strip is axially arranged along the thimble shaft 1, and the shape of an outer cylindrical surface of the connector lug 2 is matched with the shape of an inner hole on a processed workpiece 17. When the outer cylindrical surface of the connection joint 2 is shaped as shown in fig. 7, the corresponding large center hole of the workpiece 17 is shown in fig. 10. When the large thimble hole 18 of the workpiece takes the shape of fig. 11, it is necessary to design the outer cylindrical surface of the connection joint 2 to match it. Because the big thimble hole 18 trough of work piece 17, consequently, can realize connecting, it is quick convenient to insert the attach fitting 2 in the big thimble hole 18 of work piece 17.

As shown in fig. 1, 8 and 9, the end face of the thimble shaft 1 provided with the connection joint 2 of the present invention is provided with a spacing piece 15 for spacing the connection joint 2, and the spacing piece 15 is fixed on the thimble shaft 1 by a screw, so that the connection joint 2 can be prevented from being separated from the thimble shaft 1.

As shown in fig. 5 and 6, the utility model discloses still including dismantling cover 16, the outer cylinder of first flange portion 5 is provided with the external screw thread, and the hole of dismantling cover 16 is the internal thread hole, dismantles cover 16 can with first flange portion 5 threaded connection.

The utility model discloses an use:

during the installation, the utility model discloses an external screw thread on the first flange portion 5 realizes the installation with lathe threaded connection. When the dismounting is carried out, the dismounting sleeve 16 is screwed on the external thread on the first flange part 5, and the utility model is screwed out from the machine tool.

When installing the work piece 17, insert the attach fitting 2 and establish in the big thimble hole 18 of work piece 17 to it is spacing to realize circumference through the groove in the big thimble hole 18 and the bulge that corresponds on the attach fitting 2, prevents that work piece 17 and thimble axle 1 from not rotating synchronously.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An interior stirring thimble which characterized in that: including thimble axle (1), top handle, thimble axle (1) rotates and sets up in top handle, and outside the both ends of thimble axle (1) stretched out top handle respectively, the link, the other end detachably that the one end of thimble axle (1) is connected for the motor with its pivoted of drive are provided with attach fitting (2) of being connected with work piece (17), attach fitting (2) can be along with thimble axle (1) synchronous rotation.

2. The inside shift thimble according to claim 1, wherein: the center handle comprises a first center handle (3) and a second center handle (4), a first flange part (5) and a second flange part (6) are respectively arranged on the first center handle (3) and the second center handle (4), and the first flange part (5) and the second flange part (6) are fixedly connected through screws.

3. An internal toggle thimble according to claim 2, wherein: one end of the first top handle (3) adjacent to the second flange part (6) is provided with an inserting part (7), the second top handle (4) is provided with an inserting hole (8), and the inserting part (7) is inserted into the inserting hole (8).

4. An internal toggle thimble according to claim 2, wherein: the thimble shaft (1) is respectively connected with the first thimble handle (3) and the second thimble handle (4) through a first bearing (9) and a second bearing (10).

5. The inside shift thimble according to claim 4, wherein: and the connecting end is fixedly provided with a coupling (11).

6. An internal toggle thimble according to claim 5, wherein: first apex handle (3) is provided with first reaming (12) in the one end of first flange portion (5) mutually, and first bearing (9) set up in first reaming (12), and the cover is equipped with position sleeve (13) on thimble axle (1) between shaft coupling (11) and first bearing (9), and the one end butt of position sleeve (13) is on the terminal surface of first bearing (9), other end butt is on the terminal surface of shaft coupling (11).

7. The inside shift thimble according to claim 4, wherein: and a second reaming hole (14) is formed in the second tip handle (4), the second bearing (10) is arranged in the second reaming hole (14), and the end face of the insertion part (7) axially limits the second bearing (10).

8. An internal toggle thimble according to claim 2, wherein: still including dismantling cover (16), the outer cylinder of first flange portion (5) is provided with the external screw thread, and the hole of dismantling cover (16) is the internal thread hole, dismantles cover (16) and can with first flange portion (5) threaded connection.

9. The inside shift thimble according to claim 1, wherein: the inner hole of the connecting joint (2) is a spline hole or is internally provided with a raised line along the axial direction, the corresponding part of the thimble shaft (1) is arranged as a spline part or is provided with a groove connected with the raised line along the axial direction of the thimble shaft (1), and the shape of the outer cylindrical surface of the connecting joint (2) is matched with the shape of the inner hole on the processed piece (17).

10. The inside shift thimble according to claim 1, wherein: the end face of the thimble shaft (1) provided with the connecting joint (2) is provided with a limiting piece (15) for limiting the connecting joint (2), and the limiting piece (15) is fixed on the thimble shaft (1) through a screw.