CN223506729U

CN223506729U - CNC tool

Info

Publication number: CN223506729U
Application number: CN202422879049.0U
Authority: CN
Inventors: 李国锋
Original assignee: Shenzhen Xulida Precision Technology Co ltd
Current assignee: Shenzhen Xulida Precision Technology Co ltd
Priority date: 2024-11-26
Filing date: 2024-11-26
Publication date: 2025-11-04
Anticipated expiration: 2034-11-26

Abstract

This utility model discloses a CNC fixture, including a base, a worktable, and two sliding plates. The base has two rotating mechanisms, and both ends of the worktable are rotatably connected to the two rotating mechanisms. A slot is formed through the worktable, and a traveling mechanism is provided on the worktable. The traveling mechanism includes a double-threaded screw and a traveling motor. The double-threaded screw is rotatably connected to the worktable, and the traveling motor is fixedly connected to the worktable. The output shaft of the traveling motor is fixedly connected to the double-threaded screw. The two sliding plates are respectively connected to the two threaded sections of the double-threaded screw. The sliding plates are slidably connected to the worktable. A gripper is provided on each sliding plate, near the slot, and the two grippers are opposite each other. A drive assembly is provided on the sliding plate and connected to the gripper. This utility model provides a CNC fixture that can machine the top or bottom of a workpiece in a single clamping operation.

Description

CNC tool

Technical Field

The utility model relates to the field of numerical control machining equipment, in particular to a CNC jig.

Background

The clamp is an important clamping device in CNC machining and production processes and is used for clamping and machining a workpiece, so that the workpiece can be firmly fixed at a preset position, and machining steps such as cutting and the like are performed.

In the existing CNC jig used in the triaxial milling machine processing, only the top of the workpiece can be processed in one-time clamping, when the bottom of the workpiece is required to be processed, the workpiece is required to be disassembled and turned, and the workpiece is required to be re-centered in the secondary clamping, so that the time consumption for processing the double surfaces of a single workpiece is long.

Disclosure of utility model

The utility model aims to provide a CNC jig which can process the top or bottom of a workpiece in the same clamping process.

The utility model discloses a CNC jig which adopts the following technical scheme:

Including base, workstation and two slide, be equipped with two rotary mechanism on the base, the both ends of workstation respectively with two rotary mechanism swivelling joint, it has the trench to run through on the workstation, be equipped with on the workstation and advance the mechanism, it includes the double-thread lead screw and advances the motor to advance the mechanism, double-thread lead screw and workstation swivelling joint, advance motor and workstation fixed connection, advance the output shaft and the double-thread lead screw fixed connection of motor, two the slide respectively with the two sections screw-thread fit connection of double-thread lead screw, slide and workstation sliding connection, be equipped with the clamping jaw on the slide, the clamping jaw is close to the trench, two the clamping jaw is mutually opposite, be equipped with drive assembly on the slide, drive assembly is connected with the clamping jaw.

As the preferred scheme, the clamping jaw includes connecting seat, lifter plate, punch holder and lower plate, connecting seat and slide fixed connection, lifter plate and connecting seat sliding connection, drive assembly is connected with the lifter plate, swivelling joint has accommodate the lead screw on the lifter plate, punch holder and accommodate the terminal swivelling joint of lead screw, lower plate and slide fixed connection, form the clamping area between punch holder and the lower plate.

As an optimal scheme, the number of the advancing mechanisms is two, the two advancing mechanisms are symmetrically arranged, the two advancing mechanisms are respectively positioned at two sides of the sliding plate, and the connection positions of the two double-thread screw rods and the sliding plate are respectively positioned at two sides of the sliding plate.

As the preferred scheme, drive assembly includes mount pad and rocking arm, mount pad and slide fixed connection, swivelling joint has the cylinder on the mount pad, the middle part and the mount pad swivelling joint of rocking arm, the output shaft and the one end swivelling joint of rocking arm of cylinder, the other end and the lifter plate sliding connection of rocking arm.

Preferably, the number of the driving components on the sliding plate is two.

As the preferable scheme, rotary mechanism includes the stand, the bottom and the base fixed connection of stand, the embedding has the rotating electrical machines in the stand, two connectors of last fixedly connected with of workstation, the output shaft and the connector fixed connection of rotating electrical machines.

The CNC jig disclosed by the utility model has the beneficial effects that:

The workpiece to be processed is placed between two clamping jaws, a double-thread screw rod is driven to rotate positively through a travelling motor, the double-thread screw rod drives two sliding plates to mutually approach, the two clamping jaws are mutually approach, after the clamping jaws are driven to operate and clamp the workpiece, an external cutter is used for processing the top of the workpiece, after the top is processed, a rotating mechanism is used for driving a workbench to rotate 180 degrees, the external cutter penetrates through a groove to process the bottom of the workpiece, and after the bottom is processed, the rotating mechanism is used for driving the workbench to rotate 180 degrees to reset, so that the double-sided processing of the workpiece is realized in one-step clamping.

Drawings

FIG. 1 is a schematic diagram of a CNC fixture according to the present utility model.

Fig. 2 is a schematic diagram of a CNC fixture of the present utility model with a workbench turned 180 °.

FIG. 3 is a schematic diagram of a workbench of a CNC fixture of the present utility model.

Fig. 4 is a schematic diagram of a traveling mechanism of a CNC tool according to the present utility model.

Fig. 5 is a schematic diagram of a clamping jaw structure of a CNC tool according to the present utility model.

FIG. 6 is a schematic diagram of a driving assembly of a CNC fixture according to the present utility model.

FIG. 7 is a cross-sectional view of a table and clamping jaw of a CNC fixture of the present utility model.

Detailed Description

The utility model is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:

Please refer to fig. 1-3.

The utility model discloses a CNC jig which comprises a base 1, a workbench 3 and two sliding plates 5

The base 1 is provided with two rotating mechanisms 2, in this embodiment, the two rotating mechanisms 2 are preferably close to two ends of the base 1 respectively, the rotating mechanisms 2 comprise upright posts 21, the bottoms of the upright posts 21 are fixedly connected with the base 1, rotating motors are embedded in the upright posts 21, and output shafts of the rotating motors penetrate out of the upright posts 21, in this embodiment, the output shafts of the two rotating motors are preferably located on the same axis;

The upper part of the workbench 3 is fixedly connected with two connectors 31, the two connectors 31 are respectively close to two ends of the workbench 3, an output shaft of a rotating motor is fixedly connected with the connectors 31, two ends of the workbench 3 are respectively connected with the two rotating mechanisms 2 in a rotating way through the two connectors 31, the workbench 3 is positioned between the two upright posts 21, and the workbench 3 is driven to rotate by a certain angle through synchronous rotation of the output shafts of the two rotating motors.

Please refer to fig. 3.

The working table 3 is penetrated with a groove 32, the groove 32 is preferably arranged at the center of the working table 3, the working table 3 is provided with two traveling mechanisms 4, the two traveling mechanisms 4 are preferably arranged symmetrically, the two traveling mechanisms 4 are respectively arranged at two sides of the groove 32, each traveling mechanism 4 comprises a double-thread screw 41, a traveling motor 42 and a traveling guide rail 43, the two sections of threads of the double-thread screw 41 are preferably left-thread threads and right-thread threads, both ends of the double-thread screw 41 are respectively in rotary connection with the working table 3, the traveling motor 42 is fixedly connected with the working table 3, an output shaft of the traveling motor 42 is fixedly connected with one end of the double-thread screw 41, the traveling guide rails 43 are fixedly connected with the working table 3, and the traveling guide rails 43 are mutually parallel to the double-thread screw 41.

The two sliding plates 5 are respectively connected with two sections of threads of the double-threaded screw rod 41 in a matching way, the two travelling mechanisms 4 are respectively positioned on two sides of the sliding plates 5, the connecting positions of the two double-threaded screw rods 41 and the sliding plates 5 are respectively positioned on two sides of the sliding plates 5, the sliding plates 5 are in sliding connection with the travelling guide rails 43, and the output shaft of the travelling motor 42 drives the double-threaded screw rod 41 to rotate forwards or reversely so that the double-threaded screw rod 41 drives the two sliding plates 5 to slide on the double-threaded screw rod 41 to mutually approach or slide to mutually separate from each other.

Please refer to fig. 4-7.

The workbench 3 is fixedly connected with four guide rails 33, the four guide rails 33 are respectively close to two ends of the workbench 3, each end of the workbench 3 is provided with two guide rails 33, the four guide rails 33 are parallel to each other, the slide plate 5 is in sliding connection with the guide rails, the slide plate 5 is provided with clamping jaws 6, the clamping jaws 6 are close to the groove 32, the two clamping jaws 6 are opposite to each other, the clamping jaws 6 comprise a connecting seat 61, a lifting plate 62, an upper clamping plate 63 and a lower clamping plate 64, the bottom of the connecting seat 61 is fixedly connected with the top of the slide plate 5, two symmetrical lifting rails 611 are fixedly connected to the connecting seat 61, the two lifting rails 611 are parallel to each other, the slide plate 5 is arranged between the two lifting rails 611, and the slide plate 5 is in sliding connection with the connecting seat 61 through the two lifting rails 611;

Further, two adjusting screws 621 are rotatably connected to the lifting plate 62, in this embodiment, the two adjusting screws 621 penetrate through the lifting plate 62, a hand wheel is fixedly connected to one end of the adjusting screws 621, the hand wheel is located above the lifting plate 62, the other end of the adjusting screws 621 is rotatably connected to the upper clamping plate 63, the lower clamping plate 64 is fixedly connected to the sliding plate 5, a clamping area is formed between the upper clamping plate 63 and the lower clamping plate 64, the two lower clamping plates 64 are horizontally parallel to each other, the two clamping areas are located on the same horizontal plane, the adjusting screws 621 are driven to rotate forward or reversely through rotating the hand wheel to drive the upper clamping plate 63 to descend or ascend by a certain height, the height of the clamping area is prolonged or shortened, the clamping jaw 6 can be adapted to workpieces of different sizes, and in this embodiment, the height of the clamping area after adjustment is preferably only 5MM higher than the workpieces, the clamping jaw 6 can smoothly loosen or clamp the workpieces.

The slide plate 5 is provided with two driving components 7, in this embodiment, the driving components 7 are preferably connected with the clamping jaw 6, the driving components 7 are connected with the lifting plate 62, the driving components 7 comprise a mounting seat 71 and a rocker 711, the mounting seat 71 is fixedly connected with the slide plate 5, the mounting seat 71 is rotatably connected with a cylinder 72, the middle part of the rocker 711 is rotatably connected with the mounting seat 71, an output shaft of the cylinder 72 is rotatably connected with one end of the rocker 711, the other end of the rocker 711 is slidably connected with the lifting plate 62, one side of the rocker 711 penetrates through a sliding groove, the sliding groove is close to the other end of the rocker 711, two connecting posts are fixedly connected to the lifting plate 62, the connecting posts are placed in the sliding grooves and are in sliding contact, and the output shaft of the cylinder 72 pushes or pulls the rocker 711 to rotate on the mounting seat 71, so that the rocker 711 moves the lifting plate 62 to slide up or slide down on the connecting seat 61, and the clamping jaw 6 can clamp or unclamp a workpiece.

Please refer to fig. 1-7.

The workpiece to be processed is placed between the two clamping jaws 6, the travelling mechanism 4 drives the two sliding plates 5 to slide to be close to the workpiece, two ends of the workpiece are respectively placed in the two clamping areas, the driving assembly 7 drives the lifting plate 62 to descend, the clamping jaws 6 can clamp the workpiece, an external cutter is used for processing the top of the workpiece, after the processing of the top of the workpiece is completed, the rotating mechanism 2 drives the workbench 3 to rotate 180 degrees, the external cutter penetrates through the groove 32 to process the bottom of the workpiece, after the processing of the bottom of the workpiece is completed, the rotating mechanism 2 drives the workbench 3 to rotate 180 degrees again to reset, the driving assembly 7 drives the clamping jaws 6 to loosen the workpiece, and the travelling mechanism 4 drives the two sliding plates 5 to slide away from the workpiece, so that the worker can conveniently take down the processed workpiece.

The utility model provides a CNC fixture, which is characterized in that a workpiece to be processed is placed between two clamping jaws, a double-thread screw rod is driven to rotate forwards through a travelling motor, the double-thread screw rod drives two sliding plates to be close to each other, so that the two clamping jaws are close to each other, a driving assembly drives the clamping jaws to operate and clamp the workpiece, an external cutter is used for processing the top of the workpiece, after the top is processed, a rotating mechanism drives a workbench to rotate 180 degrees to carry the workpiece, the external cutter penetrates through a groove to process the bottom of the workpiece, and after the bottom is processed, the rotating mechanism drives the workbench to rotate 180 degrees to reset, so that the double-sided processing of the workpiece is realized in one clamping.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The CNC jig is characterized by comprising a base, a workbench and two sliding plates;

The base is provided with two rotating mechanisms, two ends of the workbench are respectively connected with the two rotating mechanisms in a rotating way, the workbench is penetrated with a groove, and the workbench is provided with a travelling mechanism;

The travelling mechanism comprises a double-thread screw rod and a travelling motor, the double-thread screw rod is rotationally connected with the workbench, the travelling motor is fixedly connected with the workbench, and an output shaft of the travelling motor is fixedly connected with the double-thread screw rod;

The two sliding plates are respectively connected with two sections of threads of the double-thread screw rod in a matched mode, the sliding plates are connected with the workbench in a sliding mode, clamping jaws are arranged on the sliding plates and close to the groove, the two clamping jaws are opposite to each other, a driving assembly is arranged on the sliding plates, and the driving assembly is connected with the clamping jaws.

2. The CNC jig of claim 1, wherein the clamping jaw comprises a connecting seat, a lifting plate, an upper clamping plate and a lower clamping plate, wherein the connecting seat is fixedly connected with the sliding plate, the lifting plate is slidably connected with the connecting seat, the driving assembly is connected with the lifting plate, the lifting plate is rotatably connected with an adjusting screw, the upper clamping plate is rotatably connected with the tail end of the adjusting screw, the lower clamping plate is fixedly connected with the sliding plate, and a clamping area is formed between the upper clamping plate and the lower clamping plate.

3. The CNC jig of claim 2, wherein the number of the advancing mechanisms is two, the two advancing mechanisms are symmetrically arranged, the two advancing mechanisms are respectively positioned at two sides of the slide plate, and the joints of the two double-threaded screw rods and the slide plate are respectively positioned at two sides of the slide plate.

4. A CNC tool according to claim 3, wherein the drive assembly comprises a mounting base and a rocker arm, the mounting base is fixedly connected with the slide plate, a cylinder is rotatably connected to the mounting base, the middle part of the rocker arm is rotatably connected to the mounting base, the output shaft of the cylinder is rotatably connected to one end of the rocker arm, and the other end of the rocker arm is slidably connected to the lifting plate.

5. The CNC tool of claim 4, wherein the number of drive assemblies on the slide is two.

6. The CNC tool of claim 5, wherein the rotating mechanism comprises a post, the bottom of the post is fixedly connected with the base, a rotating motor is embedded in the post, two connectors are fixedly connected to the upper part of the workbench, and an output shaft of the rotating motor is fixedly connected with the connectors.