CN219901081U

CN219901081U - Machine tool rotary workbench

Info

Publication number: CN219901081U
Application number: CN202321474289.1U
Authority: CN
Inventors: 张凯; 张全庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-10-27
Anticipated expiration: 2033-06-08

Abstract

The utility model relates to the field of machine tool equipment and discloses a machine tool rotary workbench, which effectively solves the problem that the existing workbench is easy to continue to rotate under the action of inertia so as to reduce machining precision.

Description

Machine tool rotary workbench

Technical Field

The utility model belongs to the field of machine tool equipment, and particularly relates to a machine tool rotary workbench.

Background

According to the patent document entitled "rotary table mechanism for machine tool", entitled "CN213380283U", the specification of which refers to: in the utility model, when the electric control cabinet is used, mains supply is connected to supply power for the system, when the driving motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the rotary column and the workbench are driven to rotate, the rotary column is supported by the universal wheel, the rotary column is convenient to rotate, when the workbench rotates, the clamping plate moves along the clamping groove, the clamping plate plays a guiding role on the workbench, the normal operation of the workbench mechanism is ensured, the lower end of the upper limiting ring is attached to the upper end of the lower limiting ring, the upper limiting ring plays a limiting role on the rotary column and the workbench, the phenomenon of movement of the workbench in the operation process is avoided, the stable operation of the workbench mechanism is facilitated, and the machining precision of a machine tool is ensured:

when the motor stops rotating, the workbench is easy to drive to continue rotating under the inertia action of the rotating equipment, so that the machining precision is reduced.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the rotary worktable of the machine tool, which effectively solves the problem that the existing worktable is easy to rotate continuously under the action of inertia, so that the machining precision is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the rotary table comprises a base, wherein a rotary platform is arranged above the base, an inner groove is formed in the base, a rotating shaft is arranged at the bottom end of the rotary platform, the rotating shaft is arranged in the inner groove, and a speed reducing assembly is arranged on the outer side of the rotating shaft;

the speed reducing assembly comprises a friction ring arranged on the outer side of the rotating shaft, friction plates are symmetrically arranged on two sides of the friction ring, a movable block is arranged on one side, close to the inner wall of the inner groove, of the friction plate, the movable block is movably connected to the inside of the sleeve, the sleeve is symmetrically arranged on the inner wall of the inner groove, and a spring is arranged on one side, far away from the friction plates, of the movable block.

Preferably, the movable block is internally provided with a magnetic block, the two sides of the base are symmetrically provided with electromagnets, and the magnetic block is magnetically connected with the electromagnets.

Preferably, the friction plate and the friction ring are arranged in a rough way on the side close to each other.

Preferably, bottom rods are arranged at the bottom ends of the rotating shafts at equal angles, the bottom rods are arranged in the guide grooves, the guide grooves are formed in the inner bottom walls of the inner grooves, balls are arranged at the bottom ends of the bottom rods, and the balls are in contact with the inner bottom walls of the guide grooves.

Preferably, tooth grooves are formed in the outer side of the bottom rod at equal angles, one side of each tooth groove is meshed with an output gear of the motor, and the tooth grooves are arranged in the inner groove.

Preferably, an upper limiting ring is arranged on the inner wall of the inner groove, a lower limiting ring is arranged on the inner wall of the inner groove, and the upper limiting ring and the lower limiting ring are respectively positioned on the upper side and the lower side of the friction ring.

Preferably, the inner wall of the upper limiting ring and the inner wall of the lower limiting ring are clung to the outer wall of the rotating shaft, and the friction plate is positioned between the upper limiting ring and the lower limiting ring.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the electromagnet is connected with the motor in series, when the motor is electrified, the electromagnet is electrified to generate attractive force to the magnetic block in the movable block, so that the friction plate is driven to move towards one side of the electromagnet, and the friction plate is not contacted with the outer wall of the friction ring any more, thereby facilitating the rotation of the rotating shaft and further facilitating the rotation of the rotary platform;

(2) After the novel motor is powered off, the electromagnet is powered off, and at the moment, the movable block moves back under the action of the elastic force of the spring, so that the friction plate is clung to the outer wall of the friction ring under the action of the elastic force of the spring, and friction resistance is generated on the friction ring by the friction plate, and the rotary platform is prevented from continuing to rotate under the action of self inertia after stopping, so that the rotary platform is convenient to use.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic diagram of a rotary table of a machine tool according to the present utility model;

FIG. 2 is a schematic view of the internal structure of the base of the present utility model;

FIG. 3 is a schematic view of a rotary platform according to the present utility model;

FIG. 4 is a schematic diagram of a deceleration assembly according to the present utility model;

in the figure: 1. a base; 2. a rotary platform; 3. an inner tank; 4. a rotating shaft; 5. a bottom bar; 6. a guide groove; 7. tooth slots; 8. a motor; 9. a deceleration assembly; 901. a friction ring; 902. an upper limit ring; 903. a lower limit ring; 904. an electromagnet; 905. a sleeve; 906. a movable block; 907. a spring; 908. friction plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-4, the utility model comprises a base 1, a rotary platform 2 is arranged above the base 1, an inner groove 3 is arranged in the base 1, a rotating shaft 4 is arranged at the bottom end of the rotary platform 2, the rotating shaft 4 is arranged in the inner groove 3, a speed reducing component 9 is arranged at the outer side of the rotating shaft 4, the speed reducing component 9 comprises a friction ring 901 arranged at the outer side of the rotating shaft 4, friction plates 908 are symmetrically arranged at two sides of the friction ring 901, a movable block 906 is arranged at one side of the friction plate 908 close to the inner wall of the inner groove 3, the movable block 906 is movably connected with the inner part of a sleeve 905, the sleeve 905 is symmetrically arranged on the inner wall of the inner groove 3, a spring 907 is arranged at one side of the movable block 906 far away from the friction plate 908, a magnetic block is arranged in the movable block 906, an electromagnet 904 is symmetrically arranged at two sides of the base 1, the magnetic block is magnetically connected with the electromagnet 904, the friction disc 908 and the friction ring 901 are arranged on one side which is close to each other in a rough mode, the bottom rod 5 is installed at the bottom end of the rotating shaft 4 at equal angles, the bottom rod 5 is arranged in the guide groove 6, the guide groove 6 is formed in the inner bottom wall of the inner groove 3, balls are installed at the bottom end of the bottom rod 5 and are in contact with the inner bottom wall of the guide groove 6, tooth grooves 7 are formed in the outer side of the bottom rod 5 at equal angles, one side of each tooth groove 7 is meshed with an output gear of the motor 8, the tooth grooves 7 are installed in the inner groove 3, an upper limiting ring 902 is installed on the inner wall of the inner groove 3, a lower limiting ring 903 is installed on the inner wall of the inner groove 3, the upper limiting ring 902 and the lower limiting ring 903 are respectively located on the upper side and the lower side of the friction ring 901, the inner wall of the upper limiting ring 902 and the inner wall of the lower limiting ring 903 are tightly attached to the outer wall of the rotating shaft 4, and the friction disc 908 is located between the upper limiting ring 902 and the lower limiting ring 903.

Working principle: when the rotary platform 2 is used, the motor 8 is started, the output gear of the motor 8 is meshed with the tooth slot 7 on the outer wall of the rotating shaft 4, so that the output gear of the motor 8 rotates to drive the rotating shaft 4 to rotate, the electromagnet 904 is connected with the motor 8 in series, after the motor 8 is started, the electromagnet 904 is correspondingly electrified, attractive force is generated to the magnetic block in the movable block 906, the movable block 906 and the friction plate 908 are close to the electromagnet 904, the friction plate 908 is not contacted with the friction ring 901, the rotation of the rotary platform 2 is facilitated, after the rotary platform 2 needs to be stopped, the motor 8 is powered off, the electromagnet 904 is powered off, at the moment, the movable block 906 moves back under the action of the spring 907, so that the friction plate 908 is tightly attached to the friction ring 901, at the moment, the friction plate 908 generates larger friction force to the friction ring 901 under the action of the elasticity of the spring 907, the rotary platform 2 is prevented from continuing to rotate under the action of inertia, the rotary platform 2 is offset, the rotary platform 2 is facilitated, and the use accuracy is improved.

Claims

1. The utility model provides a lathe swivel work head, includes base (1), its characterized in that: a rotary platform (2) is arranged above the base (1), an inner groove (3) is formed in the base (1), a rotating shaft (4) is arranged at the bottom end of the rotary platform (2), the rotating shaft (4) is arranged in the inner groove (3), and a speed reducing assembly (9) is arranged on the outer side of the rotating shaft (4);

the speed reducing assembly (9) comprises a friction ring (901) arranged on the outer side of the rotating shaft (4), friction plates (908) are symmetrically arranged on two sides of the friction ring (901), a movable block (906) is arranged on one side, close to the inner wall of the inner groove (3), of the friction plates (908), the movable block (906) is movably connected to the inside of a sleeve (905), the sleeve (905) is symmetrically arranged on the inner wall of the inner groove (3), and a spring (907) is arranged on one side, far away from the friction plates (908), of the movable block (906).

2. A machine tool rotating table according to claim 1, wherein: the movable block (906) is internally provided with a magnetic block, two sides of the base (1) are symmetrically provided with electromagnets (904), and the magnetic block is magnetically connected with the electromagnets (904).

3. A machine tool rotating table according to claim 1, wherein: the friction plate (908) and the friction ring (901) are arranged on the rough side close to each other.

4. A machine tool rotating table according to claim 1, wherein: bottom pole (5) are installed to the bottom equiangular degree of pivot (4), and bottom pole (5) set up in the inside of guide way (6), and guide way (6) are seted up on the inner bottom wall of inside groove (3), and the ball is installed to the bottom of bottom pole (5), and the ball contacts with the interior bottom wall of guide way (6).

5. A machine tool rotating table according to claim 4, wherein: the bottom rod (5) is provided with tooth grooves (7) at the outer side at equal angles, one side of each tooth groove (7) is meshed with an output gear of the motor (8), and each tooth groove (7) is arranged in the inner groove (3).

6. A machine tool rotating table according to claim 1, wherein: an upper limiting ring (902) is arranged on the inner wall of the inner groove (3), a lower limiting ring (903) is arranged on the inner wall of the inner groove (3), and the upper limiting ring (902) and the lower limiting ring (903) are respectively arranged on the upper side and the lower side of the friction ring (901).

7. A machine tool rotating table according to claim 6, wherein: the inner wall of the upper limit ring (902) and the inner wall of the lower limit ring (903) are tightly attached to the outer wall of the rotating shaft (4), and the friction plate (908) is positioned between the upper limit ring (902) and the lower limit ring (903).