Clamping device of numerical control machine tool

Abstract

The clamping device of the numerical control machine tool comprises a clamping device body, a clamping assembly and a cleaning assembly for cleaning machining chippings are arranged on the clamping device body, the clamping assembly comprises a fixing mechanism, and the fixing mechanism comprises a first translation sliding seat, a first clamping plate, a rubber plate, a fixing seat, a hydraulic rod and a fixing plate. The first stepping motor is used for driving the first screw rod to rotate and driving the first translation sliding seats on the front side and the rear side of the clamping device body to slide, so that the first clamping plates on the first translation sliding seats clamp a plate, the friction force of the first clamping plates can be increased through the rubber plates, the plate can be clamped conveniently, meanwhile, the plate can be buffered, and the clamping efficiency is improved. According to the plate clamping device, plate deformation caused by too large clamping force is prevented, then the multiple hydraulic rods are controlled to press the plate according to the size of the plate, fixing of the plate is achieved, and clamping and fixing of the plates of different sizes are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a clamping device for CNC machine tools. Background Technology

[0002] A CNC machine tool is an automated machine tool equipped with a program control system. It can operate and process parts according to a pre-programmed program. During the processing of sheet metal, clamping devices are needed to clamp and fix the sheet metal to prevent it from sliding during processing.

[0003] A search revealed Chinese patent application number 202223242322.6, which discloses a machine tool for facilitating workpiece clamping. The machine tool includes a machine body, with two vertical plates fixedly connected to the upper surface of the machine body. A first bearing is fixedly embedded on the side of the two vertical plates that are close to each other. A double-headed motor is fixedly connected to the upper surface of the machine body, and threaded rods are fixedly connected to the two output ends of the double-headed motor. A carrier plate is fixedly connected to the upper surface of the two vertical plates. Two through slots are formed on the upper surface of the carrier plate, and a sliding plate is slidably connected to the inner wall of each through slot.

[0004] The machine tool in the aforementioned patent that facilitates workpiece clamping has the following shortcomings: the machine tool can only clamp and fix the side of the plate, and cannot clamp and fix the plate in the vertical direction, which may cause the plate to bounce up, thereby affecting the processing accuracy of the plate. Utility Model Content

[0005] The purpose of this invention is to further address the shortcomings of existing technologies by proposing a clamping device for CNC machine tools.

[0006] This device is further configured to achieve the above objectives, and the present invention adopts the following technical solution:

[0007] A clamping device for a CNC machine tool includes a clamping device body, on which a clamping assembly and a cleaning assembly for cleaning machining debris are provided. The clamping assembly includes a fixing mechanism, which includes a first translation slide, a first clamping plate, rubber plates, a fixed seat, a hydraulic rod, and a fixed plate. The first translation slide is symmetrically arranged. The first clamping plate is bolted to the top of the first translation slide. A plurality of rubber plates are arranged on the outer wall of the first clamping plate near the center of the clamping device body. A plurality of fixed seats are arranged on the top of the first clamping plate. A hydraulic rod is installed on the top of the fixed seat. The output end of the hydraulic rod passes through the fixed seat, and a fixed plate is installed on the output end of the hydraulic rod.

[0008] As a further embodiment of this utility model: the clamping assembly further includes a slide rail, a stepper motor, and a screw. The slide rail is installed on the left and right sides of the main body of the clamping device, the stepper motor is installed at one end of the slide rail, and the screw is rotatably installed in the slide rail. The output end of the stepper motor is connected to the screw.

[0009] As a further embodiment of this utility model: the screw has two sections of threads with opposite directions of rotation, and the translation slide is slidably mounted on the two sections of threads with opposite directions of rotation of the screw.

[0010] As a further improvement of this utility model: discharge ports are provided at the bottom of the left and right sides of the clamping device body, a number of cleaning holes are provided at the top of the clamping device body, and the middle position of the clamping device body is a hollow structure.

[0011] As a further embodiment of this utility model: the cleaning component includes a second slide rail, a second stepper motor, and a second screw. The second slide rail is installed at the bottom of the main body of the clamping device, the second screw is rotatably installed in the second slide rail, the second stepper motor is installed at one end of the second slide rail, and the output end of the second stepper motor is connected to the second screw.

[0012] As a further embodiment of this utility model: the cleaning assembly further includes a second sliding slide, a lifting rod, and a mounting plate. The second sliding slide is slidably mounted on the second screw. A lifting rod is mounted on the top of the second sliding slide. A mounting plate is mounted on the output end of the lifting rod. Several trapezoidal parts are provided on the mounting plate, and the trapezoidal parts are located in the cleaning holes.

[0013] As a further improvement of this utility model: the cleaning component also includes a scraper, which is installed on both sides of the top of the translation slide block two, and the scraper is in close contact with the bottom inner wall of the clamping device body.

[0014] As a further improvement of this utility model, the clamping device further includes a support base, which is fixedly installed at both ends of the main body of the clamping device by bolts, and the support base is provided with reinforcing ribs and mounting holes.

[0015] The beneficial effects of this utility model are as follows:

[0016] By using a stepper motor to drive a screw to rotate, the sliding slides on both sides of the clamping device body slide, causing the clamping plates on the sliding slides to clamp the plates. The use of rubber plates can increase the friction of the clamping plates, making it easier to clamp the plates and also buffering the plates to prevent excessive clamping force from deforming them. Then, according to the size of the plates, several hydraulic rods are controlled to press the plates together to fix them, which is convenient for clamping and fixing plates of different sizes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a clamping device for a CNC machine tool proposed in this utility model;

[0018] Figure 2 This is a top view of the clamping device for a CNC machine tool proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the fixing mechanism proposed in this utility model;

[0020] Figure 4 This is a bottom view of the structure of a clamping device for a CNC machine tool proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the cleaning component proposed in this utility model.

[0022] In the diagram: 1-Clamping device body, 2-Support base, 3-Slide rail one, 4-Stepper motor one, 5-Fixing mechanism, 6-Screw one, 7-Screw two, 8-Transfer slide one, 9-Holding plate one, 10-Rubber plate, 11-Fixing base, 12-Hydraulic rod, 13-Fixing plate, 14-Slide rail two, 15-Stepper motor two, 16-Discharge port, 17-Cleaning hole, 18-Transfer slide two, 19-Scraper, 20-Lifting rod, 21-Mounting plate. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] A clamping device for a CNC machine tool, such as Figures 1-4As shown, the device includes a clamping device body 1, on which clamping components and cleaning components for cleaning processing debris are provided. The clamping components include a fixing mechanism 5, which includes a translation slide 8, a support plate 9, rubber plates 10, a fixing seat 11, a hydraulic rod 12, and a fixing plate 13. The translation slide 8 is symmetrically arranged. The support plate 9 is installed on the top of the translation slide 8 by bolts. Several rubber plates 10 are arranged on the outer wall of the support plate 9 near the center of the clamping device body 1. Several fixing seats 11 are arranged on the top of the support plate 9. A hydraulic rod 12 is installed on the top of the fixing seat 11. The output end of the hydraulic rod 12 passes through the fixing seat 11. The output end of the hydraulic rod 12 is installed on the fixing plate 13.

[0026] The clamping assembly also includes a slide rail 3, a stepper motor 4, and a screw 6. The slide rail 3 is installed on the left and right sides of the main body 1 of the clamping device. The stepper motor 4 is installed at one end of the slide rail 3. The screw 6 is rotatably installed in the slide rail 3. The output end of the stepper motor 4 is connected to the screw 6.

[0027] The screw 6 has two threads with opposite directions of rotation, and the translation slide 8 is threadedly fitted onto the two threads with opposite directions of rotation on the screw 6.

[0028] By using a stepper motor 4 to drive the screw 6 to rotate, the sliding slides 8 on the front and rear sides of the clamping device body 1 are slidable, so that the clamping plate 9 on the sliding slide 8 clamps the plate. The use of a rubber plate 10 can increase the friction of the clamping plate 9, making it easier to clamp the plate. At the same time, it can also buffer the plate to prevent the plate from deforming due to excessive clamping force. Then, according to the size of the plate, several hydraulic rods 12 are controlled to press the plate respectively to fix the plate, which is convenient for clamping and fixing plates of different sizes.

[0029] This device is further configured such as Figure 2 , Figure 4 As shown, discharge ports 16 are provided at the bottom of the left and right sides of the clamping device body 1, and several cleaning holes 17 are provided at the top of the clamping device body 1. The middle position of the clamping device body 1 is a hollow structure.

[0030] This device is further configured such as Figures 2-5 As shown, the cleaning assembly includes a slide rail 14, a stepper motor 15, and a screw 7. The slide rail 14 is installed at the bottom of the clamping device body 1. The screw 7 is rotatably installed in the slide rail 14. The stepper motor 15 is installed at one end of the slide rail 14. The output end of the stepper motor 15 is connected to the screw 7.

[0031] The cleaning assembly also includes a second translation slide 18, a lifting rod 20, and a mounting plate 21. The second translation slide 18 is threaded onto the second screw 7. The top of the second translation slide 18 is equipped with the lifting rod 20. The output end of the lifting rod 20 is equipped with the mounting plate 21. The mounting plate 21 is provided with several trapezoidal parts, which are located in the cleaning hole 17.

[0032] The cleaning assembly also includes scrapers 19, which are installed on both sides of the top of the translation slide 18 and are in close contact with the bottom inner wall of the clamping device body 1.

[0033] After processing, the mounting plate 21 is raised by using the lifting rod 20, so that the trapezoidal part moves out of the cleaning hole 17. Then, the stepper motor 215 drives the screw 27 to rotate, thereby driving the translation slide 218 to slide, so that the trapezoidal part pushes the processed plate out of the device. The debris and coolant generated during processing accumulate on the inner wall of the bottom of the clamping device body 1, and are scraped by the scraper 19 and cleaned out of the device from the discharge port 16.

[0034] This device is further configured such as Figure 1 As shown, the clamping device also includes a support base 2, which is fixedly installed at the front and rear ends of the main body 1 of the clamping device by bolts. The support base 2 is provided with reinforcing ribs and mounting holes.

[0035] Working principle: Stepper motor 4 drives screw 6 to rotate, which in turn drives the sliding slides 8 on both sides of the clamping device body 1 to slide, so that the clamping plate 9 on the sliding slide 8 clamps the plate. The rubber plate 10 increases the friction of the clamping plate 9, which facilitates clamping the plate and also buffers the plate to prevent excessive clamping force from deforming the plate. Then, according to the size of the plate, several hydraulic rods 12 are controlled to press the plate to fix it. After processing, the mounting plate 21 is raised by lifting rod 20. Then, stepper motor 15 drives screw 7 to rotate, which drives the sliding slide 18 to slide, so that the trapezoidal part pushes the processed plate out of the device. The debris and coolant generated during processing are scraped off by scraper 19 and cleaned out of the device from the discharge port 16.

[0036] The above are merely preferred embodiments of this utility model. For parts that do not require creative effort in circuit control, signal control and transmission, please refer to the prior art. However, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and utility model concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A clamping device for a CNC machine tool, comprising a clamping device body (1), wherein the clamping device body (1) is provided with clamping components and a cleaning component for cleaning machining debris, characterized in that, The clamping assembly includes a fixing mechanism (5), which includes a translation slide (8), a support plate (9), a rubber plate (10), a fixing seat (11), a hydraulic rod (12), and a fixing plate (13). The translation slide (8) is symmetrically arranged. The support plate (9) is bolted to the top of the translation slide (8). Several rubber plates (10) are arranged on the outer wall of the support plate (9) near the center of the clamping device body (1). Several fixing seats (11) are arranged on the top of the support plate (9). A hydraulic rod (12) is installed on the top of the fixing seat (11). The output end of the hydraulic rod (12) passes through the fixing seat (11). The output end of the hydraulic rod (12) is installed on the fixing plate (13).

2. The clamping device for a CNC machine tool according to claim 1, characterized in that, The clamping assembly also includes a slide rail (3), a stepper motor (4), and a screw (6). The slide rail (3) is installed on the left and right sides of the main body (1) of the clamping device. The stepper motor (4) is installed at one end of the slide rail (3). The screw (6) is rotatably installed in the slide rail (3). The output end of the stepper motor (4) is connected to the screw (6).

3. The clamping device for a CNC machine tool according to claim 2, characterized in that, The screw (6) is provided with two threads with opposite directions of rotation, and the translation slide (8) is slidably mounted on the two threads with opposite directions of rotation of the screw (6).

4. The clamping device for a CNC machine tool according to claim 3, characterized in that, The clamping device body (1) has discharge ports (16) at the bottom of its left and right sides, and a number of cleaning holes (17) at the top of its body. The middle part of the clamping device body (1) is a hollow structure.

5. A clamping device for a CNC machine tool according to claim 4, characterized in that, The cleaning assembly includes a slide rail (14), a stepper motor (15), and a screw (7). The slide rail (14) is installed at the bottom of the clamping device body (1). The screw (7) is rotatably installed in the slide rail (14). The stepper motor (15) is installed at one end of the slide rail (14). The output end of the stepper motor (15) is connected to the screw (7).

6. The clamping device for a CNC machine tool according to claim 5, characterized in that, The cleaning assembly also includes a second sliding slide (18), a lifting rod (20), and a mounting plate (21). The second sliding slide (18) is slidably mounted on the second screw (7). The top of the second sliding slide (18) is equipped with a lifting rod (20). The output end of the lifting rod (20) is equipped with a mounting plate (21). The mounting plate (21) is provided with a plurality of trapezoidal parts, which are located in the cleaning hole (17).

7. A clamping device for a CNC machine tool according to claim 6, characterized in that, The cleaning assembly also includes scrapers (19), which are installed on the top two sides of the translation slide block (18) and are in close contact with the bottom inner wall of the clamping device body (1).

8. A clamping device for a CNC machine tool according to claim 7, characterized in that, The clamping device also includes a support base (2), which is fixedly installed at the front and rear ends of the main body (1) of the clamping device by bolts. The support base (2) is provided with reinforcing ribs and mounting holes.

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