CN213916127U

CN213916127U - Main shaft locking device

Info

Publication number: CN213916127U
Application number: CN202022511618.8U
Authority: CN
Inventors: 罗建忠; 谭原
Original assignee: Baoji Shanqi Jinggong Intelligent Equipment Co ltd
Current assignee: Baoji Shanqi Jinggong Intelligent Equipment Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-08-10
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a spindle locking device, include the main shaft, and be used for the spindle drum that supports the main shaft, the main shaft uses the spindle drum to cut apart the transmission portion of being connected with the headstock and the clamping part that is used for the centre gripping work piece, wherein the spindle drum is located and is equipped with the locking mechanism who is used for the whole locking of main shaft between transmission portion one side and the transmission portion. The locking mechanism comprises a fixing block fixed on the side wall of the spindle seat, a locking rod assembly moving towards the transmission part penetrates through the fixing block, and a blind hole matched with the locking rod assembly to penetrate through is formed in the surface of the transmission part. The locking mechanism is used for locking different rotation directions of the main shaft under the corresponding workpiece clamping and disassembling operation, the problem that the workpiece is difficult to operate by a single person is solved, the labor is saved, and the clamping efficiency is improved.

Description

Main shaft locking device

Technical Field

The utility model relates to a lathe main shaft technical field especially relates to a main shaft locking device.

Background

The main shaft of the machine tool refers to a shaft on the machine tool for driving a workpiece or a cutter to rotate. When the spindle clamps a workpiece or a cutter, a chuck or other special fixtures are arranged at the end part of the spindle for clamping, and when the spindle clamps the workpiece or the cutter, external force needs to be applied to the chuck or the special fixtures to clamp or loosen the workpiece or the cutter, so that the workpiece or the cutter is convenient to assemble and disassemble. When external force is applied, the main shaft can synchronously rotate along with the chuck or the special fixture, so that difficulty is caused in assembling and disassembling the workpiece and the cutter, and continuous operation of the machine tool is influenced.

Disclosure of Invention

To the problem that exists, the utility model aims at providing a main shaft locking device, including the main shaft, and be used for the main shaft support to the main shaft, be equipped with on the main shaft support and be used for the whole locking mechanism who locks the main shaft. The locking mechanism has the advantages that the different rotating directions of the main shaft are locked under the specific operations of workpiece clamping and disassembling, the problem that the workpiece is difficult to operate by a single person is solved, the labor is saved, and the clamping efficiency is improved.

In order to achieve the above object, the utility model adopts the following technical scheme: a main shaft locking device comprises a main shaft and a main shaft seat used for supporting the main shaft, wherein the main shaft is divided into a transmission part connected with the main shaft seat and a clamping part used for clamping a workpiece by the main shaft seat, and a locking mechanism used for integrally locking the main shaft is arranged between one side of the transmission part of the main shaft seat and the transmission part.

Preferably, the locking mechanism comprises a fixing block fixed on the side wall of the spindle seat, a locking rod assembly moving towards the transmission part is arranged in the fixing block in a penetrating mode, and a blind hole matched with the locking rod assembly to penetrate through is formed in the surface of the transmission part.

Preferably, the locking rod assembly comprises a positive locking rod and a reverse locking rod which are symmetrically arranged at the center of the fixing block and are obliquely and crossly arranged, and the blind holes comprise a positive blind hole and a reverse blind hole which are coaxial with the positive locking rod and the reverse locking rod.

Preferably, the positive lock rod, the reverse lock rod, the positive blind hole and the reverse blind hole are all in a conical structure.

Preferably, the positive locking rod and the negative locking rod are respectively sleeved with an anti-loosening elastic pad.

The utility model has the advantages that: the locking mechanism is used for locking different rotation directions of the main shaft under the corresponding workpiece clamping and disassembling operation, the problem that the workpiece is difficult to operate by a single person is solved, the labor is saved, and the clamping efficiency is improved.

Drawings

Fig. 1 is the overall structure diagram of the locking device of the present invention.

Fig. 2 is an enlarged view of fig. 1A according to the present invention.

Fig. 3 is a side view of the present invention in fig. 2.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 3, a spindle locking device includes a spindle 1 and a spindle base 2 for supporting the spindle 1, wherein the spindle 1 is divided into a transmission part 11 connected to the spindle base and a clamping part 12 for clamping a workpiece by the spindle base 2. The workpiece is clamped on the clamping part 12, the main shaft 1 is driven to integrally rotate through the main shaft box, and the workpiece is machined by matching with a cutter.

In order to avoid the difficulty of loading and unloading the workpiece caused by the rotation of the main shaft 1 when loading and unloading the workpiece, a locking mechanism for locking the main shaft 1 integrally is arranged between one side of the main shaft seat 2, which is positioned at the transmission part 11, and the transmission part 11. When a workpiece is loaded and unloaded, the spindle 1 is locked by the locking mechanism and is kept to rotate, the chuck connected to the clamping part 12 can be operated to load and unload the workpiece, and the influence of the rotation of the spindle 1 on the operation of the chuck is avoided; especially when the chuck is replaced by a clamping tool with a threaded inner hole, the workpiece is disassembled by applying external force to rotate around the main shaft 1, in this case, the main shaft 1 is locked, the workpiece can be assembled and disassembled rapidly by one person, the main shaft 1 can resist the torsion force of the rotation of the workpiece, and the workload of manually locking the transmission part by an operator is reduced.

Specifically, locking mechanism is including fixing fixed block 3 of 2 lateral walls of spindle drum, wear to be equipped with in the fixed block 3 towards 11 mobilizable locking lever components 4 of transmission portion, 11 surfaces of transmission portion offer the cooperation the blind hole 5 that locking lever components 4 alternated. The locking principle is as follows: and in the state that the main shaft stops, rotating the main shaft to enable the blind hole 5 to correspond to the lock rod assembly 4, and then inserting the lock rod assembly 4 into the blind hole 5 to finish the locking operation of the main shaft 1.

In order to purposefully resist the torsion force of the rotation of the spindle 1, as shown in fig. 3, the locking lever assembly 4 includes a positive locking lever 41 and a negative locking lever 42 which are centrally symmetric and obliquely and crossly arranged on the fixing block 3, and the blind hole 5 includes a positive blind hole 51 and a negative blind hole 52 which are coaxial with the positive locking lever 41 and the negative locking lever 42. Preferably, the positive locking rod 41 and the negative locking rod 42 are in threaded fit with the fixed block 3 and are in penetrating contact with the positive blind hole 51 and the negative blind hole 52. The locking function is as follows: the positive locking rod 41 and the reverse locking rod 42 are respectively used for the targeted locking operation of a positive rotation workpiece and a reverse rotation workpiece on the rotation direction of the spindle 1, the positive locking rod 41 and the reverse locking rod 42 are coaxial with the tangent line of the positive rotation torsion force and the reverse rotation torsion force of the spindle 1, so that the rotation torsion force of the spindle 1 is transmitted along the axial direction of the positive locking rod 41 and the reverse locking rod 42, and for the vertical penetration locking, the vertically penetrated positive locking rod 41 and the vertically penetrated reverse locking rod 42 are easy to break under the torsion force action of the spindle 1, and the inclined penetration mode has higher locking strength, meanwhile, the inclined setting mode is in contact with the bottom surface of a blind hole, the transverse fit clearance of the vertical contact modes of the positive locking rod 41 and the reverse locking rod 42 is avoided, and the loosening influence caused by the locking is avoided.

Further, in order to avoid the locking looseness caused by the fit clearance between the locking rod assembly 4 and the blind hole 5, as shown in fig. 3B, the positive locking rod 41, the negative locking rod 42, the positive blind hole 51 and the negative blind hole 52 are all designed to be cone-shaped structures, and the structures have the function of fit fastening, so that the spindle 1 is convenient for fast mounting and dismounting of a workpiece on one side of the clamping portion 12 after being locked and fastened.

In order to avoid the reverse phase separation of the locking rod assembly 4 and the blind hole 5 after unidirectional locking, the locking rod 41 and the reverse locking rod 42 are both sleeved with anti-loosening elastic pads 6, the reverse phase separation of the spindle 1 in a locking state is prevented through friction between the locking rod 41 and the inner wall of the blind hole 5, and the spindle 1 cannot be separated from the locking rod assembly 4 when the workpiece is assembled and disassembled and the hand-changing operation is facilitated.

The principle of the utility model is that: the locking mechanism is used for locking the main shaft 1 in different rotating directions under the action of pertinence of workpiece clamping and disassembling, the problem that the workpiece is difficult to operate by a single person in loading and unloading is solved, manpower is saved, and the clamping efficiency is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A spindle locking device comprises a spindle (1) and a spindle seat (2) used for supporting the spindle (1), wherein the spindle (1) is divided into a transmission part (11) connected with the spindle box and a clamping part (12) used for clamping a workpiece by the spindle seat (2), and a locking mechanism used for integrally locking the spindle (1) is arranged between one side of the transmission part (11) of the spindle seat (2) and the transmission part (11).

2. A spindle locking device according to claim 1, wherein: locking mechanism is including fixing fixed block (3) of spindle drum (2) lateral wall, wear to be equipped with in fixed block (3) towards mobilizable locking lever subassembly (4) of transmission portion (11), cooperation has been seted up on transmission portion (11) surface blind hole (5) that locking lever subassembly (4) alternate.

3. A spindle locking device according to claim 2, wherein: locking lever subassembly (4) are including crossing the positive locking lever (41) and the anti-locking lever (42) of establishing with fixed block (3) central symmetry and slope, blind hole (5) are including with positive locking lever (41) and anti-coaxial positive blind hole (51) and anti-blind hole (52) of anti-locking lever (42).

4. A spindle locking device according to claim 3, wherein: the positive lock rod (41), the reverse lock rod (42), the positive blind hole (51) and the reverse blind hole (52) are all in a conical structure.

5. A spindle locking device according to claim 4, wherein: the positive lock rod (41) and the reverse lock rod (42) are both sleeved with anti-loosening elastic pads (6).