Numerical control tool rest for numerical control machine tool

Abstract

The utility model discloses a numerical control tool rest for a numerical control machine tool, and relates to the technical field of numerical control tool rests, the numerical control tool rest comprises a fixed seat, a movable disc and a clamping seat, the top surface of the movable disc is provided with an annular slideway matched with a sliding seat in a surrounding manner, the side wall of the sliding seat is provided with a movable groove, and an elastic pressing part is arranged in the movable groove; due to the arrangement of the downward pressing transmission part and the elastic pressing part, after the clamping seat is moved according to the actual machining environment, and the included angle between every two adjacent movable blocks is adjusted, the movable blocks on the inner sides of the sliding seats are synchronously stressed through the downward pressing transmission part; the movable blocks are stressed to slide and act on the friction pads to be tightly attached to the inner wall of the annular sliding way, then the multiple sliding seats are synchronously braked through friction force, and therefore on the premise that the stability after the included angle between the clamping seats and the cutter is adjusted is not affected, fixing operation after the clamping seats move is effectively simplified, bolts do not need to be manually arranged in holes in a penetrating mode, and the work efficiency is improved. And a plurality of clamping seats can be fixed synchronously.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control tool rests, in particular to a numerical control tool rest for numerical control machine tools. Background Art

[0002] The CNC tool holder is the most common auxiliary device for CNC machine tools. It has multiple tool stations and can be equipped with multiple tools required for processing. By switching different tools according to processing requirements, the CNC lathe can complete multiple or even all processing steps in one clamping of the workpiece, so as to shorten the auxiliary processing time and reduce the errors caused by multiple installations of the workpiece during the processing, thereby improving the processing efficiency and processing accuracy of the machine tool.

[0003] The prior art discloses a CNC tool rest for CNC machine tools with a patent announcement number of CN216502380U. The patent allows the device to adjust the angle between tool stations according to the actual processing environment, reducing the time spent on tool switching and improving processing efficiency. At the same time, the device allows the tool to be quickly disassembled and assembled, reducing the time spent on disassembling and assembling the tool, making the device easy to use.

[0004] However, from the perspective of actual use, since the tools are arranged in multiple groups on the tool switching turntable, and the clamping seats on the multiple groups of tools are fixedly connected to the tool switching turntable through fastening bolts, once the positions of multiple groups of tools are adjusted on the tool switching turntable, it is often necessary to manually tighten the fastening bolts on the multiple groups of clamping seats in turn, which is time-consuming and labor-intensive, and seriously affects work efficiency. Utility Model Content

[0005] In order to solve the above technical problems, a CNC tool holder for a CNC machine tool is provided, which solves the problem that in the prior art, the tools are arranged in multiple groups on a tool switching turntable, and the clamping seats on the multiple groups of tools are fixedly connected to the tool switching turntable by fastening bolts. Once the positions of multiple groups of tools are adjusted on the tool switching turntable, it is often necessary to manually tighten the fastening bolts on the multiple groups of clamping seats in turn, which is time-consuming and labor-intensive, and seriously affects work efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a CNC tool holder for CNC machine tools, comprising a fixed seat with an open end, a movable disk rotatably arranged at the open end of the fixed seat, and a plurality of clamping seats arranged around the top surface of the movable disk, a tool is arranged at the end of the clamping seat away from the center of the movable disk, a slide is fixed to the end of the clamping seat facing the center of the movable disk, an annular slideway matched with the slide is arranged around the top surface of the movable disk, a movable groove is arranged on the side wall of the slide, an elastic clamping component is arranged in the movable groove, and a downward pressure transmission component matched with the elastic clamping component is arranged above the movable disk.

[0007] Preferably, the elastic clamping component includes a movable block slidably arranged in the movable groove, one end of the movable block is fixed with a friction pad tightly fitting with the inner wall of the annular slide, and the other end of the movable block is fixed with a return spring between the innermost wall of the movable groove.

[0008] Preferably, the elastic clamping component includes a movable block slidably arranged in the movable groove, one end of the movable block is fixed with a friction pad tightly fitting with the inner wall of the annular slide, and the other end of the movable block is fixed with a return spring between the innermost wall of the movable groove.

[0009] Preferably, a screw rod rotatably connected to the top surface of the movable disk is threaded through the center of the pressure plate, and a fixing rod is vertically arranged on the side of the screw rod, and the fixing rod passes through the pressure plate and is fixedly connected to the top surface of the movable disk.

[0010] Compared with the prior art, the advantages of the utility model are: through the arrangement of the downward pressure transmission component and the elastic clamping component, when the clamping seat is moved according to the actual processing environment and the angle adjustment between two adjacent movable blocks is completed, the downward pressure transmission component is used to make the movable blocks on the inner sides of several slides synchronously subjected to force, so that the movable blocks slide under the force and act on the friction pad to cling to the inner wall of the annular slide, and then the friction force is used to synchronously brake several slides, thereby effectively simplifying the fixing operation of the clamping seat after the movement without affecting the stability of the clamping seat and the tool after the angle adjustment, without manually drilling bolts into the holes, and simultaneously realizing the fixing of multiple clamping seats, thereby enhancing practicality and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0013] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0014] Figure 4 It is a schematic diagram of the internal structure of the movable block of the utility model.

[0015] The numbers in the figure are:

[0016] 1. Fixed seat; 2. Movable plate; 3. Sliding seat; 4. Clamping seat; 5. Cutter; 6. Friction pad; 7. Movable block; 8. Return spring; 9. Pressure groove; 10. Extrusion block; 11. Pressure rod; 12. Pressure plate; 13. Rolling groove; 14. Fixed ball; 15. Screw; 16. Fixed rod. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] Reference Figure 1-4 As shown, a CNC tool rest for a CNC machine tool comprises a fixed seat 1 with an open end, a movable disk 2 rotatably arranged at the open end of the fixed seat 1, and a plurality of clamping seats 4 arranged around the top surface of the movable disk 2, a tool 5 is arranged at one end of the clamping seat 4 away from the center of the movable disk 2, a slide seat 3 is fixed at one end of the clamping seat 4 facing the center of the movable disk 2, and an annular slideway adapted to the slide seat 3 is arranged around the top surface of the movable disk 2;

[0019] The clamping seat 4 is simply pushed and pulled to make the slide seat 3 slide in the annular slideway, so that the angle between two adjacent movable blocks 7 can be quickly adjusted according to the actual processing environment, thereby enhancing practicality.

[0020] Further, refer to Figure 2-4 As shown, it is worth noting that a movable groove is provided on the side wall of the slide seat 3, an elastic pressing component is provided in the movable groove, and a downward pressing transmission component cooperating with the elastic pressing component is provided above the movable disk 2;

[0021] The elastic pressing component includes a movable block 7 slidably arranged in the movable groove, a friction pad 6 tightly fitted with the inner wall of the annular slideway is fixed to one end of the movable block 7, and a return spring 8 is fixed between the other end of the movable block 7 and the innermost inner wall of the movable groove;

[0022] By setting the downward pressing transmission component and the elastic pressing component, when the clamping seat 4 is movable according to the actual processing environment and the angle between two adjacent movable blocks 7 is adjusted, the downward pressing transmission component is used to make the movable blocks 7 on the inner sides of several slides 3 synchronously subjected to force, so that the movable blocks 7 are forced to slide and act on the friction pad 6 to cling to the inner wall of the annular slideway, and then the friction force is used to synchronously brake several slides 3, thereby, without affecting the stability of the clamping seat 4 and the tool 5 after the angle adjustment, the fixing operation of the clamping seat 4 after the movement is extremely effectively simplified, without the need to manually drill bolts into the holes, and multiple clamping seats 4 can be fixed synchronously, thereby enhancing practicality and reducing labor intensity;

[0023] And as shown above, the movable block 7 can synchronously stretch the reset spring 8 during the process of sliding under force, and then utilize the elastic force of the reset spring 8. When the downward pressure transmission component is no longer exerting force on the movable block 7, the movable block 7 and the friction pad 6 as a whole can be quickly reset under the elastic force of the reset spring 8, so that the friction pad 6 is separated from the inner wall of the annular slideway, thereby releasing the fixing effect on the slide seat 3 and the clamping seat 4.

[0024] Further, refer to Figure 2-4As shown, it is worth noting that the downward pressure transmission component includes a pressure plate 12 slidably arranged above the movable disk 2, a rolling groove 13 is opened around the outer periphery of the bottom surface of the pressure plate 12, a pressure groove 9 with a longitudinal section in the shape of a right-angle trapezoid is opened in the inner wall of the movable block 7, an extrusion block 10 is slidably arranged on the oblique inner wall of the pressure groove 9, a pressure rod 11 is vertically fixed to the top surface of the extrusion block 10, the end of the pressure rod 11 passes through the slide seat 3 upward and is fixed with a fixed ball 14, and the fixed ball 14 is slidably embedded in the inner side of the rolling groove 13;

[0025] When the pressure plate 12 slides downward, the extrusion block 10 can be pressed downward by the pressure rod 11 to continuously contact the oblique inner wall of the pressure groove 9, thereby forming a thrust on the movable block 7 and the friction pad 6 as a whole, so that the friction pad 6 is closely attached to the inner wall of the annular slideway;

[0026] Furthermore, the fixing ball 14 is slidably embedded in the inner side of the rolling groove 13 , so that the fixing ball 14 can slide synchronously with the inner side of the rolling groove 13 when the clamping seat 4 is adjusted, thereby not hindering the movable adjustment of the clamping seat 4 .

[0027] Further, refer to Figure 2 As shown, it is worth noting that the central thread of the pressure plate 12 is penetrated by a screw rod 15 which is rotatably connected to the top surface of the movable disk 2, and a fixing rod 16 is vertically arranged on the side of the screw rod 15, and the fixing rod 16 passes through the pressure plate 12 and is fixedly connected to the top surface of the movable disk 2;

[0028] The knob screw 15, that is, the action plate 12 slides down along the rod of the plate 12 under the threaded structure, providing a sliding force for the plate 12, and during the movement of the plate 12, the fixed rod 16 can limit the movement trajectory of the plate 12 to ensure the stability of the plate 12 during movement.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A CNC tool rest for a CNC machine tool, comprising a fixed seat (1) with an open end, a movable disk (2) rotatably arranged on the open end of the fixed seat (1), and a plurality of clamping seats (4) arranged around the top surface of the movable disk (2), wherein a tool (5) is arranged at one end of the clamping seat (4) away from the center of the movable disk (2), characterized in that: A slide seat (3) is fixed to one end of the clamping seat (4) facing the center of the movable disk (2); an annular slideway matching the slide seat (3) is arranged around the top surface of the movable disk (2); a movable groove is arranged on the side wall of the slide seat (3); an elastic clamping component is arranged in the movable groove; a downward pressure transmission component matching the elastic clamping component is arranged above the movable disk (2).

2. A CNC tool rest for a CNC machine tool according to claim 1, characterized in that: The elastic pressing component comprises a movable block (7) slidably arranged in the movable groove, a friction pad (6) tightly fitted with the inner wall of the annular slideway is fixed to one end of the movable block (7), and a return spring (8) is fixed between the other end of the movable block (7) and the innermost inner wall of the movable groove.

3. A CNC tool rest for a CNC machine tool according to claim 2, characterized in that: The downward pressure transmission component includes a pressure plate (12) slidably arranged above the movable disk (2), a rolling groove (13) is opened around the outer periphery of the bottom surface of the pressure plate (12), a pressure groove (9) with a longitudinal section in the shape of a right-angled trapezoid is opened in the inner wall of the movable block (7), an extrusion block (10) is slidably arranged on the oblique inner wall of the pressure groove (9), a pressure rod (11) is vertically fixed to the top surface of the extrusion block (10), the end of the pressure rod (11) passes through the sliding seat (3) upward and is fixed and has a fixed ball (14), and the fixed ball (14) is slidably embedded in the inner side of the rolling groove (13).

4. A CNC tool rest for a CNC machine tool according to claim 3, characterized in that: A screw rod (15) is threaded through the center of the pressure plate (12) and is rotatably connected to the top surface of the movable disk (2). A fixing rod (16) is vertically arranged on the side of the screw rod (15). The fixing rod (16) passes through the pressure plate (12) and is fixedly connected to the top surface of the movable disk (2).

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