Rocker arm structure for numerical control machine tool

Abstract

The rocker arm structure for the numerical control machine tool comprises a base, a drill bit and a moving block, a radial drilling machine body is fixedly installed on the top face of the base, an installation block is fixedly installed at the bottom end of a driving shaft at the bottom end of a spindle box of the radial drilling machine body, an installation hole is formed in the bottom face of the installation block, and limiting grooves are formed in the two sides in the installation hole respectively. A clamping head is fixedly connected to the top end of the drill bit, and limiting blocks are fixedly connected to the two sides of the clamping head correspondingly and slidably connected with the limiting grooves. By arranging the mounting block, the clamping head, the limiting block, the limiting hole, the limiting rotating block, the lead screw, the limiting circular plate, the rotating rod, the moving block, the limiting rod and the like, the drill bit and the clamping head can be disassembled and assembled, the drill bit can be conveniently replaced according to the machining requirement, the drill bit can be conveniently replaced when the drill bit is damaged, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a rocker arm structure for numerically controlled machine tools. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool, which is an automatic machine tool equipped with a program control system. The rocker arm in the CNC machine tool system is usually an important component used to control the tool movement and cutting force during the workpiece processing process. A radial drilling machine is a drilling machine in which the rocker arm can rotate and lift around the column, and the spindle box usually moves horizontally on the rocker arm. When processing holes on a vertical drilling machine, the centering of the tool and the workpiece is achieved by moving the workpiece, which is obviously very inconvenient for some large and heavy workpieces. The radial drilling machine can use the position of the moving tool axis to align, which brings great convenience to the processing of holes on large and heavy workpieces in single-piece and small-batch production. According to the classification of the machine tool clamping structure, the radial drilling machine can be divided into hydraulic radial drilling machine and mechanical radial drilling machine. Among all kinds of drilling machines, the radial drilling machine is easy to operate, flexible, widely applicable, and typical. It is particularly suitable for hole processing of large parts with multiple holes in single-piece or batch production. It is a common machine tool in general machining workshops.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN218192648U discloses a multi-dimensionally adjustable radial drilling machine, including a casing, a shell fixedly connected to the surface of the casing, a rotating shaft arranged inside the shell, a first connecting plate fixedly connected to the outer sleeve of the rotating shaft, a second connecting plate fixedly connected to the top of the rotating shaft, a first motor fixedly connected to the top of the second connecting plate, a screw rod penetratingly connected to the output end of the first motor, the bottom end of the screw rod is rotatably connected to the top of the first connecting plate, and a connecting sleeve is commonly arranged on the outer side of the rotating shaft and the screw rod. In the utility model, by setting up a cleaning component, a plurality of cleaning brushes under the mounting plate are driven to move by a multi-section electric push rod, so that the waste chips generated by processing on the work surface can be cleaned, and the workload during use can be reduced, making it more convenient during use, more convenient during operation, and more practical.

[0004] However, the drill bit of the existing rocker arm structure for CNC machine tools is fixedly connected to the output end of the driving motor during use, which makes it inconvenient to replace the drill bit according to processing requirements, thereby reducing the practicability of the device.

[0005] For this reason, we propose a rocker arm structure for CNC machine tools to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a rocker arm structure for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a rocker arm structure for a CNC machine tool, comprising a base, a drill bit, and a moving block, wherein the top surface of the base is fixedly installed with a radial drilling machine body, the bottom end of the driving shaft of the bottom end of the spindle box of the radial drilling machine body is fixedly installed with a mounting block, the bottom surface of the mounting block is provided with a mounting hole, and limit grooves are respectively provided on both sides of the mounting hole, the top of the drill bit is fixedly connected to a clamping joint, the two sides of the clamping joint are respectively fixedly connected to limit blocks, the limit block is slidably connected to the limit groove, the clamping joint is connected in the mounting hole, and the mounting block is rotatably connected to the limit rotating block, the end of the limit rotating block is fixedly connected to one end of the screw rod, the other end of the screw rod is fixedly connected to one side of the limit circular plate, and the other side of the limit circular plate is fixedly connected to the rotating rod, a threaded sleeve is embedded in the moving block, the threaded sleeve is meshed and connected with the screw rod, and the two ends of the moving block away from the rotating rod are respectively fixedly connected to the limit rods, and the two ends of the clamping joint are respectively horizontally provided with limit holes, and the limit rod is slidably connected to the limit holes.

[0008] Preferably, through holes are respectively provided at two ends of one side of the mounting block, the through holes are internally connected to the mounting hole, and the limiting rod is slidably connected to the through holes.

[0009] Preferably, one side of the moving block contacts the mounting block.

[0010] Preferably, a workbench is fixedly mounted on the top surface of the base, and a support frame is fixedly connected to one side of the top of the workbench.

[0011] Preferably, a cylinder is fixedly mounted on one side of the support frame, an output end of the cylinder piston rod is fixedly connected to one end of a connecting rod, and the other end of the connecting rod is fixedly connected to a connecting plate.

[0012] Preferably, a scraper plate is detachably mounted on the bottom of the connecting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can disassemble and assemble the drill bit and the clamping joint by arranging the installation block, the clamping joint, the limit block, the limit hole, the limit rotating block, the screw rod, the limit circular plate, the rotating rod, the moving block, the limit rod, etc., so that the drill bit can be replaced according to processing requirements and the drill bit can be replaced when it is damaged, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of a partial structure of the utility model in a front view cross-sectional structure;

[0017] Figure 3 This is a schematic diagram of the partial structure split structure of the utility model;

[0018] Figure 4This is a schematic diagram of a partial structure of the utility model in a front view cross-sectional structure;

[0019] Figure 5 It is a schematic diagram of the local structure of the utility model.

[0020] In the figure: 1. base; 2. radial drilling machine body; 3. mounting block; 31. mounting hole; 311. limiting groove; 32. through hole; 4. clamping joint; 41. limiting block; 42. limiting hole; 5. drill bit; 6. limiting rotating block; 7. screw rod; 8. limiting circular plate; 9. rotating rod; 10. moving block; 101. threaded sleeve; 11. limiting rod; 12. workbench; 13. support frame; 14. cylinder; 141. connecting rod; 15. connecting plate; 16. scraper. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1:

[0023] See also Figure 1-5 , which is the first embodiment of the utility model. The utility model provides a technical solution: a rocker arm structure for a CNC machine tool, including a base 1, a drill bit 5, and a moving block 10. The top surface of the base 1 is fixedly installed with a radial drilling machine body 2, and a mounting block 3 is fixedly installed at the bottom end of the driving shaft of the main spindle box of the radial drilling machine body 2. The main spindle box is provided with a driving motor connected to the driving shaft. A mounting hole 31 is provided on the bottom surface of the mounting block 3, and limiting grooves 311 are respectively provided on both sides of the mounting hole 31. The top of the drill bit 5 is fixedly connected with a clamping joint 4, and limiting blocks 41 are respectively fixedly connected on both sides of the clamping joint 4. The limiting block 41 is slidably connected to the limiting groove 311. The limiting block 41 and the limiting groove 311 are provided so that when the mounting block 3 rotates, the clamping joint 4 , the drill bit 5, etc. can be rotated accordingly to limit the clamping joint 4, the clamping joint 4 is connected in the mounting hole 31, and the limiting rotating block 6 is rotatably connected in the mounting block 3. The limiting rotating block 6 can limit the screw rod 7, the limiting circular plate 8, and the rotating rod 9 to improve the stability of rotation. The end of the limiting rotating block 6 is fixedly connected to one end of the screw rod 7, the other end of the screw rod 7 is fixedly connected to one side of the limiting circular plate 8, and the other side of the limiting circular plate 8 is fixedly connected to the rotating rod 9. The threaded sleeve 101 is embedded in the moving block 10, and the threaded sleeve 101 is meshed and connected to the screw rod 7. The two ends of the moving block 10 away from the rotating rod 9 are respectively fixedly connected to the limiting rods 11. Limiting holes 42 are respectively opened horizontally at both ends of the clamping joint 4, and the limiting rod 11 is slidably connected to the limiting holes 42.

[0024] Embodiment 2:

[0025] See also Figure 1-5 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. Through holes 32 are respectively opened at both ends of one side of the mounting block 3. The through holes 32 and the mounting holes 31 are internally connected. The limiting rod 11 is slidably connected to the through holes 32 to improve the fixation of the clamping joint 4, thereby improving the fixation of the drill bit 5.

[0026] One side of the moving block 10 contacts the mounting block 3 .

[0027] A workbench 12 is fixedly mounted on the top surface of the base 1 , and a support frame 13 is fixedly connected to one side of the top of the workbench 12 .

[0028] The cylinder 14 is fixedly mounted on one side of the support frame 13 . The output end of the piston rod of the cylinder 14 is fixedly connected to one end of a connecting rod 141 , and the other end of the connecting rod 141 is fixedly connected to the connecting plate 15 .

[0029] The scraper 16 can be detachably mounted at the bottom of the connecting plate 15. After the drilling process is completed, the cylinder 14 is connected to an external power supply, and the connecting plate 15 and the scraper 16 can be driven to move by starting the cylinder 14. The scraper 16 can move horizontally to clean the debris on the surface of the workbench 12.

[0030] Embodiment 3:

[0031] See also Figure 1-5 , which is the third embodiment of the utility model. This embodiment is based on the above two embodiments. When the utility model is actually used, a suitable drill bit 5 is inserted into the mounting hole 31 set in the mounting block 3 through the clamping joint 4. At the same time, the limit blocks 41 set on both sides of the clamping joint 4 slide into the limit grooves 311 accordingly. The rotating rod 9 on one side drives the moving block 10 to move, so that the limit rod 11 moves with the movement of the moving block 10, slides into the limit hole 42 set in the clamping joint 4 and slides into the through hole 32 set in the mounting block 3, and the clamping joint 4 and the drill bit 5 are installed and fixed, thereby improving the fixation of the clamping joint 4. After the drill bit 5 is installed, the workpiece can be placed on the workbench 12, and the drilling work can be performed through the radial drilling machine body 2, which is convenient for replacing the drill bit 5 according to processing requirements, and it is also convenient for replacing the drill bit 5 when the drill bit 5 is damaged, thereby improving the practicality of the device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rocker arm structure for a numerically controlled machine tool, comprising a base (1), a drill bit (5), and a moving block (10), characterized in that: The radial drilling machine body (2) is fixedly mounted on the top surface of the base (1); a mounting block (3) is fixedly mounted on the bottom end of the driving shaft of the main spindle box of the radial drilling machine body (2); a mounting hole (31) is provided on the bottom surface of the mounting block (3); limiting grooves (311) are respectively provided on both sides of the mounting hole (31); the top of the drill bit (5) is fixedly connected to a clamping joint (4); limiting blocks (41) are respectively fixedly connected to both sides of the clamping joint (4); the limiting blocks (41) are slidably connected to the limiting grooves (311); the clamping joint (4) is connected in the mounting hole (31); and the mounting block (3) is rotatably connected to the clamping joint (4). A limit rotating block (6) is connected, the end of the limit rotating block (6) is fixedly connected to one end of a screw rod (7), the other end of the screw rod (7) is fixedly connected to one side of a limit circular plate (8), the other side of the limit circular plate (8) is fixedly connected to a rotating rod (9), a threaded sleeve (101) is embedded in the moving block (10), the threaded sleeve (101) is meshed and connected to the screw rod (7), the two ends of the moving block (10) away from the rotating rod (9) are respectively fixedly connected to the limit rod (11), and the two ends of the clamping joint (4) are respectively horizontally provided with limit holes (42), and the limit rod (11) is slidably connected to the limit holes (42).

2. The rocker arm structure for a CNC machine tool according to claim 1, characterized in that: Through holes (32) are respectively provided at both ends of one side of the mounting block (3); the through holes (32) and the mounting hole (31) are internally connected; and the limiting rod (11) is slidably connected to the through holes (32).

3. The rocker arm structure for a CNC machine tool according to claim 1, characterized in that: One side of the moving block (10) contacts the mounting block (3).

4. The rocker arm structure for a CNC machine tool according to claim 1, characterized in that: A workbench (12) is fixedly mounted on the top surface of the base (1), and a support frame (13) is fixedly connected to one side of the top of the workbench (12).

5. The rocker arm structure for a CNC machine tool according to claim 4, characterized in that: A cylinder (14) is fixedly mounted on one side of the support frame (13); an output end of a piston rod of the cylinder (14) is fixedly connected to one end of a connecting rod (141); and the other end of the connecting rod (141) is fixedly connected to a connecting plate (15).

6. The rocker arm structure for a CNC machine tool according to claim 5, characterized in that: A scraper plate (16) is detachably mounted on the bottom of the connecting plate (15).

Images