Cutter fixing structure of numerical control planer type milling machine

Abstract

The utility model relates to the technical field of numerical control planer type milling machines, and discloses a numerical control planer type milling machine cutter fixing structure which comprises a base, a sliding groove is formed in the right portion of the front side of the top end of the base, a sliding block is slidably connected to the sliding groove, a hydraulic base is fixedly connected to the middle of the top end of the sliding block, and a hydraulic rod is slidably connected to the middle of the top end of the hydraulic base. A hydraulic rod is arranged at the top end of the base, a cutter groove is formed in the middle of the top end of the hydraulic rod, supporting columns are fixedly connected to the left side and the right side of the rear side of the top end of the base, and trays are fixedly connected to the top ends of the supporting columns. The tool is pushed into the tool fixing clamp, the tool is clamped through the spring clamp, then the tool threaded cover is screwed on the tool through the rotating ring, the servo motor controls rotation of the rotating ring, and the clamping force of the tool fixing clamp is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled gantry milling machines, in particular to a tool fixing structure of numerically controlled gantry milling machines. Background Art

[0002] The gantry milling machine is a milling machine with a large frame structure. Its structural features are as follows: Gantry frame: There are columns on both sides of the machine bed, and the crossbeam is connected to the columns to form a gantry-like structure with high stability and rigidity. Large workbench: It can carry large workpieces, and the workbench can usually move in the longitudinal direction. The advantages of the gantry milling machine are numerous: Strong processing capacity: It can process large and complex-shaped workpieces, such as large molds, ship parts, large mechanical parts, etc. High precision: Due to its stable structure, it can maintain good precision during long-term processing. High efficiency: It can use multiple tools for processing at the same time, which greatly improves production efficiency. In terms of working method: The tool is installed on the milling head, and the milling head can move horizontally on the crossbeam to achieve cutting at different positions of the workpiece. With the longitudinal movement of the worktable, it can realize the processing of various surfaces such as planes, inclined surfaces, curved surfaces, etc.

[0003] Milling machine tools are cutting tools used for milling machine processing. There are many types, each with its specific uses and characteristics. End mill: It is one of the most common milling machine tools. Its blades are distributed on the circumference and end face of the tool, and can perform various processes such as plane milling, side milling, step milling, etc. End mills have different diameters, blade lengths and numbers of teeth to meet different processing needs. Face milling cutter: It is mainly used for milling large-area planes. It has multiple blades and can provide high processing efficiency and good surface quality. Keyway milling cutter: It is specially used for processing keyways on shafts. Its appearance is similar to that of an end mill, but the blade is narrower and the diameters of the two end blades are usually the same. T-slot milling cutter: It is used to process T-slots. Ball head milling cutter: The blade is spherical and is suitable for processing curved surfaces and complex contours. Corn milling cutter: It has multiple spiral blades and good chip removal performance. It is often used for rough processing with large allowances. When selecting milling machine tools, factors such as the nature of the processing material, the processing accuracy requirements, the performance of the machine tool, and the material of the tool need to be considered.

[0004] The tool fixing structure of the existing gantry milling machine requires a lot of time and effort to disassemble and assemble, which will reduce work efficiency. In addition, when the tool fixing structure is manually installed, the clamping force of the tool will be insufficient or too tight depending on the amount of manpower, resulting in damage to the tool. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a tool fixing structure for a CNC gantry milling machine, aiming to improve the problems of inconvenient assembly and disassembly and unstable holding force of the tool fixing structure for a CNC gantry milling machine in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tool fixing structure of a CNC gantry milling machine comprises a base, a sliding groove is provided on the right front part of the top end of the base, the sliding groove is slidably connected with a sliding block, the middle part of the top end of the sliding block is fixedly connected with a hydraulic seat, the middle part of the top end of the hydraulic seat is slidably connected with a hydraulic rod, and the middle part of the top end of the hydraulic rod is provided with a tool groove. The left and right sides of the rear side of the top end of the base are fixedly connected with support columns, the top end of the support column is fixedly connected with a tray, the middle part of the front side of the top end of the tray is fixedly connected with a rotating shaft seat, the inner side of the rotating shaft seat is rotatably connected with a fixed cover rotating shaft, the four inner corners of the fixed cover rotating shaft are fixedly connected with tenons, the middle side of the rear side of the top end of the tray is fixedly connected with a telescopic cylinder, the middle part of the top end of the telescopic cylinder is slidably connected with a telescopic rod, and the top of the outer front end of the telescopic rod is fixedly connected with a clamp mechanical claw.

[0007] As a further description of the above technical solution:

[0008] A slide rail is fixedly connected to the middle side of the front and rear parts of the inner side of the sliding groove, and a slide groove is provided at the bottom of the front and rear sides of the sliding block.

[0009] As a further description of the above technical solution:

[0010] A gear groove is arranged at the outer bottom of the fixed cover rotating shaft.

[0011] As a further description of the above technical solution:

[0012] A motor seat is fixedly connected to the left front portion of the top of the base, a servo motor is fixedly connected to the middle portion of the top of the motor seat, a motor shaft is rotatably connected to the top of the servo motor, and a transmission gear is fixedly connected to the middle portion of the top of the motor shaft.

[0013] As a further description of the above technical solution:

[0014] A tool installation hole is provided in the middle of the front side of the top end of the tray.

[0015] As a further description of the above technical solution:

[0016] A tool fixing ring is slidably connected to the middle of the front end of the clamp mechanical claw, a tool seat is fixedly connected to the inner side of the tool fixing ring, a fixing cover is threadedly connected to the bottom outer side of the tool seat, and slots are equidistantly arranged on the outer side of the fixing cover.

[0017] As a further description of the above technical solution:

[0018] A pull rod is fixedly connected to the middle part of the top end of the tool seat, a pull ring is fixedly connected to the top outside of the pull rod, and a spring clip is arranged at the middle part of the inner side of the tool seat.

[0019] As a further description of the above technical solution:

[0020] A thread groove is provided at the bottom of the outer side of the tool seat, and a thread groove is provided at the top of the inner side of the fixing cover.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the tool fixing fixture is clamped by rotating the mechanical claws, and then the tool is pushed by the tool pushing rod at the bottom, and the tool is pushed into the tool fixing fixture to fix the milling cutter.

[0023] 2. In the utility model, the tool is clamped by a spring clamp, and then the tool thread cover is tightened on the tool through a rotating ring, so that the spring clamp fixes the tool on the fixing fixture, and the servo motor controls the rotation of the rotating ring to control the clamping force of the tool fixing fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of the tool fixing structure of the CNC gantry milling machine proposed by the utility model;

[0025] Figure 2 A schematic diagram of the structure of a tool fixing frame of a CNC gantry milling machine tool fixing structure proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of a sliding hydraulic press of a tool fixing structure of a CNC gantry milling machine proposed by the utility model;

[0027] Figure 4 It is an exploded structural diagram of the transmission mechanism of the tool fixing structure of the CNC gantry milling machine proposed by the utility model;

[0028] Figure 5 The utility model is a schematic diagram of the exploded structure of the tool fixing clamp of the tool fixing structure of the CNC gantry milling machine.

[0029] Legend:

[0030] 1. Base; 2. Sliding block; 3. Hydraulic seat; 4. Hydraulic rod; 5. Tool slot; 6. Motor seat; 7. Servo motor; 8. Motor shaft; 9. Transmission gear; 10. Pallet; 11. Telescopic cylinder; 12. Telescopic rod; 13. Clamp mechanical claw; 14. Rotating shaft seat; 15. Fixed cover rotating shaft; 16. Fixed cover; 17. Spring clip; 18. Tool seat; 19. Tool fixing ring; 20. Pull rod; 21. Pull ring; 22. Tenon; 23. Slot; 24. Threaded groove; 25. Support column; 26. Sliding groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: a tool fixing structure of a CNC gantry milling machine, comprising a base 1, a sliding groove 26 is provided at the right front part of the top of the base 1, a sliding block 2 is slidably connected to the sliding groove 26, a hydraulic seat 3 is fixedly connected to the middle part of the top of the sliding block 2, a hydraulic rod 4 is slidably connected to the middle part of the top of the hydraulic seat 3, a tool groove 5 is provided at the middle part of the top of the hydraulic rod 4, a slide rail is fixedly connected to the middle side of the front and rear parts of the inner side of the sliding groove 26, and sliding grooves are provided at the bottom of the front and rear sides of the sliding block 2. When the worker performs the tool fixing operation, he first moves the sliding block 2 out of the sliding groove 26, then places the milling cutter to be installed in the tool groove 5, and then pushes the sliding block 2 to the left end of the sliding groove 26, and then places the fixing cover 16 in the fixing cover rotating shaft 15, and at the same time places the spring clip 17 in the fixing cover 16.

[0033] Reference Figure 1-Figure 2 and Figure 4 , the left and right sides of the rear top of the base 1 are fixedly connected with support columns 25, the top of the support column 25 is fixedly connected with a tray 10, the middle part of the front side of the top of the tray 10 is fixedly connected with a rotating shaft seat 14, the inner side of the rotating shaft seat 14 is rotatably connected with a fixed cover rotating shaft 15, and the four corners of the inner side of the fixed cover rotating shaft 15 are fixedly connected with tenons 22, the middle side of the rear top of the tray 10 is fixedly connected with a telescopic cylinder 11, the middle part of the top of the telescopic cylinder 11 is slidably connected with a telescopic rod 12, and the top of the outer front end of the telescopic rod 12 is fixedly connected with a clamp mechanical claw 13, and the tool fixing ring 19 on the tool clamp is inserted into the clamp groove on the clamp mechanical claw 13. Finally, start the hydraulic device to prompt the hydraulic rod 4 on the hydraulic seat 3 to push the milling cutter to a suitable position, and then start the servo motor 7, prompting the motor shaft 8 on the servo motor 7 to drive the transmission gear 9, so that the transmission gear 9 drives the fixed cover rotating shaft 15 to rotate, and at the same time, the tenon 22 on the fixed cover rotating shaft 15 is buckled in the card slot 23 on the fixed cover 16.

[0034] Reference Figure 1-Figure 5A gear groove is provided at the bottom of the outer side of the fixed cover rotating shaft 15, a motor seat 6 is fixedly connected to the left part of the top front side of the base 1, a servo motor 7 is fixedly connected to the middle part of the top of the motor seat 6, a motor shaft 8 is rotatably connected to the top of the servo motor 7, a transmission gear 9 is fixedly connected to the middle part of the top of the motor shaft 8, a tool mounting hole is provided in the middle of the top front side of the tray 10, a tool fixing ring 19 is slidably connected to the middle part of the front end of the clamp mechanical claw 13, a tool seat 18 is fixedly connected to the inner side of the tool fixing ring 19, a fixed cover 16 is threadedly connected to the bottom of the outer side of the tool seat 18, and the outer side of the fixed cover 16 is equidistantly opened A card slot 23 is provided, a pull rod 20 is fixedly connected to the middle part of the top of the tool seat 18, a pull ring 21 is fixedly connected to the top of the outer side of the pull rod 20, a spring clip 17 is provided in the middle part of the inner side of the tool seat 18, a threaded groove 24 is opened at the bottom of the outer side of the tool seat 18, and a threaded groove 24 is opened at the top of the inner side of the fixed cover 16. The telescopic rod 12 on the telescopic cylinder 11 is controlled to control the clamp mechanical claw 13 to drive the tool clamp to move up and down, and then, the spring clip 17 at the upper end of the tool seat 18 is threadedly connected to the threaded groove 24 of the fixed cover 16 to fix the milling cutter on the tool clamp.

[0035] Working principle: When the worker is fixing the tool, he first moves the sliding block 2 out of the sliding slot 26, then places the milling cutter to be installed in the tool slot 5, and then pushes the sliding block 2 to the left end of the sliding slot 26, and then places the fixing cover 16 in the fixing cover rotating shaft 15, and at the same time puts the spring clip 17 in the fixing cover 16, and then inserts the tool fixing ring 19 on the tool fixture into the fixture slot on the fixture mechanical claw 13, and finally, starts the hydraulic device to prompt the hydraulic rod 4 on the hydraulic seat 3 to push the milling cutter to the appropriate position, and then start the servo motor 7, so that the motor shaft 8 on the servo motor 7 drives the transmission gear 9, so that the transmission gear 9 drives the fixed cover rotating shaft 15 to rotate, and at the same time, the tenon 22 on the fixed cover rotating shaft 15 is buckled in the slot 23 on the fixed cover 16, and then, by controlling the telescopic rod 12 on the telescopic cylinder 11 to control the clamp mechanical claw 13 to drive the tool clamp to move up and down, and then, the spring clip 17 at the upper end of the tool seat 18 is threadedly connected to the threaded groove 24 of the fixed cover 16 to fix the milling cutter on the tool clamp.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool fixing structure for a CNC gantry milling machine, comprising a base (1), characterized in that: A sliding groove (26) is provided at the right front part of the top of the base (1), and a sliding block (2) is slidably connected to the sliding groove (26), and a hydraulic seat (3) is fixedly connected to the middle of the top of the sliding block (2), and a hydraulic rod (4) is slidably connected to the middle of the top of the hydraulic seat (3), and a tool groove (5) is provided at the middle of the top of the hydraulic rod (4). Support columns (25) are fixedly connected to the left and right sides of the rear side of the top of the base (1), and the top of the support column (25) is fixedly connected to the tray (10). ), a rotating shaft seat (14) is fixedly connected to the middle of the front side of the top of the tray (10), a fixed cover rotating shaft (15) is rotatably connected to the inner side of the rotating shaft seat (14), and tenons (22) are fixedly connected to the four inner corners of the fixed cover rotating shaft (15), a telescopic cylinder (11) is fixedly connected to the middle of the rear side of the top of the tray (10), a telescopic rod (12) is slidably connected to the middle of the top of the telescopic cylinder (11), and a clamp mechanical claw (13) is fixedly connected to the top of the outer front end of the telescopic rod (12).

2. The tool fixing structure of the CNC gantry milling machine according to claim 1 is characterized in that: A slide rail is fixedly connected to the middle side of the front and rear parts of the inner side of the sliding groove (26), and the bottom of the front and rear sides of the sliding block (2) are both provided with slide grooves.

3. The tool fixing structure of the CNC gantry milling machine according to claim 1 is characterized in that: A gear groove is provided at the outer bottom of the fixed cover rotating shaft (15).

4. The tool fixing structure of a CNC gantry milling machine according to claim 1, characterized in that: A motor seat (6) is fixedly connected to the left front portion of the top of the base (1); a servo motor (7) is fixedly connected to the middle portion of the top of the motor seat (6); a motor shaft (8) is rotatably connected to the top of the servo motor (7); and a transmission gear (9) is fixedly connected to the middle portion of the top of the motor shaft (8).

5. The tool fixing structure of the CNC gantry milling machine according to claim 1 is characterized in that: A tool installation hole is provided in the middle of the front side of the top end of the tray (10).

6. The tool fixing structure of the CNC gantry milling machine according to claim 1, characterized in that: A tool fixing ring (19) is slidably connected to the middle of the front end of the clamp mechanical claw (13); a tool seat (18) is fixedly connected to the inner side of the tool fixing ring (19); a fixing cover (16) is threadedly connected to the bottom of the outer side of the tool seat (18); and slots (23) are equidistantly provided on the outer side of the fixing cover (16).

7. The tool fixing structure of the CNC gantry milling machine according to claim 6, characterized in that: A pull rod (20) is fixedly connected to the middle of the top end of the tool seat (18), a pull ring (21) is fixedly connected to the top of the outer side of the pull rod (20), and a spring clip (17) is arranged in the middle of the inner side of the tool seat (18).

8. The tool fixing structure of a CNC gantry milling machine according to claim 6, characterized in that: A thread groove (24) is provided at the bottom of the outer side of the tool seat (18), and a thread groove (24) is provided at the top of the inner side of the fixing cover (16).

Images