CN219005390U

CN219005390U - Automatic mechanical clamp for numerical control machine tool machining

Info

Publication number: CN219005390U
Application number: CN202320082146.XU
Authority: CN
Inventors: 于永玲; 刘雪洁; 王前超
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-28
Filing date: 2023-01-28
Publication date: 2023-05-12
Anticipated expiration: 2033-01-28

Abstract

The utility model provides an automatic mechanical clamp for numerical control machine tool machining, which comprises a base unit, a rotating unit, a motor, a bevel gear, a clamping unit and a controller, wherein the base unit is connected with the rotating unit; the base unit comprises a base and a boss; the boss is fixed on the upper end face of the base; the axis of the boss is coincident with the axis of the base; the diameter of the boss is smaller than that of the base; the rotating unit comprises a rotating ring and an inclined tooth ring; according to the utility model, the rotating ring is driven to rotate by the motor, the clamping plate is driven to move relative to the boss through the rotation of the rotating ring, so that the circular chuck above the boss moves towards or away from the axial direction of the boss, the workpiece is automatically clamped by the circular chuck, and the plurality of clamping units synchronously clamp the workpiece at multiple points, so that the clamping firmness is improved; the workpiece is sucked by the electromagnet, so that the fastening firmness is further improved.

Description

Automatic mechanical clamp for numerical control machine tool machining

Technical Field

The utility model relates to the technical field of mechanical clamps, in particular to an automatic mechanical clamp for numerical control machine tool machining.

Background

Currently, in the processing of disc-type parts, it is often necessary to clamp the parts using a clamp. The manual screw type clamp commonly used at present can only apply clamping force from two sides of a part, the condition that the part shakes when the clamping force is insufficient or the part is deformed by the clamp when the clamping force is overlarge easily occurs, and the screw is manually rotated to tighten, so that the efficiency is low, and the labor cost and the time cost are wasted

Publication number CN110935898A discloses a numerical control machine tool fixture, which comprises a movable chuck, a chassis, a positioning threaded hole, a T-shaped key, a tooth-shaped groove, a hydraulic movable claw and a main shaft. The movable chuck is provided with a fixed positioning step size for fixing a product, three positioning threaded holes and two blind holes. The chassis comprises a fixed positioning step coupled with the movable chuck, a tooth-shaped groove coupled with the hydraulic movable claw, two through holes for installing T-shaped keys and a threaded hole. The rotation of the chassis main shaft can drive the chassis and the movable chuck to move. The chassis is coupled with one or more movable chucks, and the fixed positioning steps can be processed into different dimension specifications according to the dimension of the product so as to adapt to different products. The motion synchronism of the movable chuck of the clamp on the chassis is difficult to ensure, and synchronous clamping of parts cannot be realized; and the movable chuck is fixed in size, and can only fix disc parts with specific sizes, so that the applicability is poor.

Disclosure of Invention

Aiming at the technical defects, the utility model aims to provide an automatic mechanical clamp for numerical control machine tool machining, which realizes multi-point synchronous clamping of workpieces and has better clamping stability.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an automatic mechanical clamp for machining a numerical control machine tool comprises a base unit, a rotating unit, a motor, a bevel gear, a clamping unit and a controller; the base unit comprises a base and a boss; the boss is fixed on the upper end face of the base; the axis of the boss is coincident with the axis of the base; the diameter of the boss is smaller than that of the base; the rotating unit comprises a rotating ring and an inclined tooth ring; the helical gear ring is fixed at the bottom of the swivel; the swivel is rotatably sleeved on the boss; the motor is fixed in the base, and an output shaft of the motor extends out of the base; the bevel gear is in transmission connection with an output shaft of the motor; the bevel gear is meshed with the bevel gear ring for transmission; the clamping unit comprises a plurality of clamping plates; the clamping plates are distributed in a circumferential array by taking the axis of the swivel as the center; one end of the bottom of the clamping plate is hinged with the top of the swivel, and the other end of the bottom of the clamping plate is movably connected with the boss; the motor is electrically connected with the controller.

Preferably, an infrared sensor is fixedly arranged in the base; the front end of the infrared sensor is flush with the upper end face of the boss; the infrared sensor is electrically connected with the controller.

Preferably, an electromagnet is fixedly arranged in the boss; the upper end face of the electromagnet is flush with the upper end face of the boss; the electromagnet is electrically connected with the controller.

Preferably, the clamping plate comprises a connecting plate, a positioning block and a circular chuck; two ends of the connecting plate are fixedly connected with the positioning block and the circular chuck respectively; the bottom of the positioning block is provided with a circular groove; the bottom of the connecting plate is provided with a guide groove extending along the length direction of the connecting plate; the upper end surface of the swivel is fixedly provided with a first cylinder matched with the circular groove; the upper end face of the boss is fixedly provided with a second cylinder matched with the guide groove.

Preferably, the outer side surface of the round chuck is fixedly provided with a rubber sleeve.

Preferably, a hexagonal clamping seat is fixedly arranged at the bottom of the base.

The utility model has the beneficial effects that:

according to the utility model, the rotating ring is driven to rotate by the motor, the clamping plate is driven to move relative to the boss through the rotation of the rotating ring, so that the circular chuck above the boss moves towards or away from the axial direction of the boss, the workpiece is automatically clamped by the circular chuck, and the plurality of clamping units synchronously clamp the workpiece at multiple points, so that the clamping firmness is improved; the workpiece is sucked by the electromagnet, so that the fastening firmness is further improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a structural exploded view of the present utility model;

fig. 3 is a schematic structural view of the splint according to the present utility model.

Reference numerals illustrate:

1. a swivel; 2. a clamping plate; 21. a positioning block; 22. a connecting plate; 23. a circular chuck; 24. a guide groove; 25. a circular groove; 3. an infrared sensor; 4. an electromagnet; 5. a boss; 6. a hexagonal clamping seat; 7. a base; 8. an oblique gear ring; 9. bevel gear; 10. a second cylinder; 11. a motor; 12. a first cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

It should be noted that, in the description of the present utility model, terms such as "medium," "upper," "lower," "transverse," "inner," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

As shown in fig. 1 to 3, an automated mechanical gripper for machining a numerical control machine tool comprises a base unit, a rotating unit, a motor 11, a bevel gear 9, a clamping unit and a controller; the base unit comprises a base 7 and a boss 5; the base 7 is fixed on the numerical control machine tool; the boss 5 is fixed on the upper end face of the base 7; the axis of the boss 5 is coincident with the axis of the base 7; the diameter of the boss 5 is smaller than that of the base 7, and the base 7 and the boss 5 are of a step change structure; the rotating unit comprises a rotating ring 1 and an inclined tooth ring 8; the oblique gear ring 8 is fixed at the bottom of the swivel 1 and is concentrically arranged with the swivel; the swivel 1 is rotatably sleeved on the boss 5; the motor 11 is fixed in the base 7, and an output shaft of the motor 11 extends out of the base 7; the bevel gear 9 is in transmission connection with an output shaft of the motor 11; the bevel gear 9 is meshed with the bevel gear ring 8 for transmission, the bevel gear 9 is driven to rotate by the motor 11, and the bevel gear 8 and the swivel 1 are driven to synchronously rotate by the bevel gear 9; the clamping unit comprises a plurality of clamping plates 2; the clamping plates 2 are distributed in a circumferential array by taking the axis of the swivel 1 as the center; one end of the bottom of the clamping plate 2 is hinged with the top of the swivel 1, the other end of the clamping plate is movably connected with the boss 5, when the swivel 1 rotates, the clamping plate 2 rotates around the hinge point of the clamping plate and the swivel 1, so that the other end of the clamping plate 2 rotates towards the axis direction close to the boss 5, and a workpiece is clamped through the inner side ends (one end driven by the axis close to the boss 5) of the clamping plates 2; the motor 11 is electrically connected with the controller, and the operation of the motor 11 is controlled by the controller.

Further, an infrared sensor 3 is fixedly arranged in the base 7; the front end of the infrared sensor 3 is flush with the upper end surface of the boss 5; the infrared sensor 3 is electrically connected with the controller, and whether the workpiece is placed on the boss 5 or not is detected through the infrared sensor 3, and the operation of the motor 11 is controlled through the controller after the workpiece is detected to be placed.

Further, an electromagnet 4 is fixedly arranged in the boss 5; the upper end surface of the electromagnet 4 is flush with the upper end surface of the boss 5; the electromagnet 4 is electrically connected with the controller, and after the workpiece is placed on the boss 5, the clamping plate 2 clamps the workpiece, and then the electromagnet 4 starts to suck the workpiece, so that the stability of workpiece fixation is improved.

Further, the clamping plate 2 comprises a connecting plate 22, a positioning block 21 and a circular chuck 23; two ends of the connecting plate 22 are fixedly connected with the positioning block 21 and the circular chuck 23 respectively; the bottom of the positioning block 21 is provided with a circular groove 25; the bottom of the connection plate 22 is provided with a guide groove 24 extending along the length direction thereof; the upper end surface of the swivel 1 is fixedly provided with a first cylinder 12 matched with the circular groove 25, and the first cylinder 12 is inserted into the circular groove 25 to enable the positioning block 21 to rotate around the axis of the first cylinder 12; the upper end surface of the boss 5 is fixedly provided with a second cylinder 10 which is matched with the guide groove 24, the second cylinder 10 is inserted into the guide groove 24, the second cylinder 10 can slide along the guide groove 24, when the positioning block 21 rotates, the movement of the connecting plate 22 is limited through the second cylinder 10, and then the circular chuck 23 can move towards the axial direction close to or far away from the boss 5; meanwhile, the outer arc surface of the circular chuck 23 can clamp a circular workpiece or a polygonal workpiece, so that the applicability is better.

Further, a rubber sleeve is fixedly arranged on the outer side face of the round chuck 23, so that friction force with workpiece clamping is improved, and meanwhile, the workpiece is placed and clamped.

Further, the bottom of the base 7 is fixedly provided with a hexagonal clamping seat 6, so that the base 7 is conveniently fixed on the numerical control machine tool.

When the automatic clamping device is used, a workpiece is placed on the boss 5, the infrared sensor 3 detects that the workpiece is placed, the motor 11 is started to drive the swivel 1 to rotate, the clamping plate 2 clamps the workpiece, the electromagnet 4 is started to suck the workpiece, and automatic clamping of the workpiece is completed.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An automatic mechanical clamp for machining a numerical control machine tool is characterized by comprising a base unit, a rotating unit, a motor (11), a bevel gear (9), a clamping unit and a controller; the base unit comprises a base (7) and a boss (5); the boss (5) is fixed on the upper end face of the base (7); the axis of the boss (5) is coincident with the axis of the base (7); the diameter of the boss (5) is smaller than that of the base (7); the rotating unit comprises a rotating ring (1) and an inclined tooth ring (8); the helical gear ring (8) is fixed at the bottom of the swivel (1); the swivel (1) is rotatably sleeved on the boss (5); the motor (11) is fixed in the base (7), and an output shaft of the motor (11) extends out of the base (7); the bevel gear (9) is in transmission connection with an output shaft of the motor (11); the bevel gear (9) is meshed with the bevel gear ring (8) for transmission; the clamping unit comprises a plurality of clamping plates (2); the clamping plates (2) are distributed in a circumferential array by taking the axis of the swivel (1) as the center; one end of the bottom of the clamping plate (2) is hinged with the top of the swivel (1), and the other end of the clamping plate is movably connected with the boss (5); the motor (11) is electrically connected with the controller.

2. An automated mechanical gripper for machining a numerical control machine tool according to claim 1, characterized in that an infrared sensor (3) is fixedly arranged in the base (7); the front end of the infrared sensor (3) is flush with the upper end surface of the boss (5); the infrared sensor (3) is electrically connected with the controller.

3. An automated mechanical fixture for machining a numerical control machine tool according to claim 2, wherein an electromagnet (4) is fixedly arranged in the boss (5); the upper end face of the electromagnet (4) is flush with the upper end face of the boss (5); the electromagnet (4) is electrically connected with the controller.

4. An automated mechanical chuck for numerical control machine tool machining according to claim 1, characterized in that the clamping plate (2) comprises a connecting plate (22), a positioning block (21) and a circular chuck (23); two ends of the connecting plate (22) are fixedly connected with the positioning block (21) and the circular chuck (23) respectively; a circular groove (25) is formed in the bottom of the positioning block (21); the bottom of the connecting plate (22) is provided with a guide groove (24) extending along the length direction; the upper end surface of the swivel (1) is fixedly provided with a first cylinder (12) which is matched with the circular groove (25); the upper end face of the boss (5) is fixedly provided with a second cylinder (10) matched with the guide groove (24).

5. An automated mechanical chuck for numerical control machine tool processing as set forth in claim 4, wherein a rubber sleeve is fixedly disposed on the outer side of said circular chuck (23).

6. An automated mechanical chuck for numerical control machine tool machining according to claim 5, characterized in that the bottom of the base (7) is fixedly provided with a hexagonal clamping seat (6).