Drilling device for machining oil inlet and outlet of oil cylinder

Abstract

The utility model discloses a drilling device for machining an oil inlet and an oil outlet of an oil cylinder, and relates to the technical field of oil cylinder machining, the drilling device comprises a vertical frame, a drilling mechanism is installed on the vertical frame in a liftable mode, the drilling mechanism comprises an installation frame, two sets of drill bit assemblies are symmetrically arranged on the installation frame, and the drill bit assemblies are installed on the installation frame in a sliding mode. And a gear driving assembly is arranged on the drill bit assembly. According to the design scheme, through the design that the two sets of drill bit assemblies are arranged on the installation frame, according to the positions of an oil inlet hole to be machined and an oil outlet hole to be machined, the first servo motor drives the gearbox to move, the drill bits move to the positions above the hole positions to be machined, and then the spindle motor is started to enable the drill bits to rotate for drilling machining; therefore, the oil inlet hole and the oil outlet hole can be drilled at the same time, when the hole diameters of the two oil holes are different, the drill bits corresponding to the two oil holes can be replaced independently, repeated tool changing operation is not needed, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder processing, in particular to a drilling device for processing oil inlet and outlet ports of an oil cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] A hydraulic cylinder usually has two holes, one is the oil inlet hole and the other is the oil outlet hole. The oil inlet hole is used to deliver hydraulic oil into the cylinder to push the piston rod to move, and the oil outlet hole is used to discharge the hydraulic oil from the cylinder to return the piston rod to its original position.

[0004] In the prior art, a drilling machine is usually used to process the oil inlet and outlet holes of the oil cylinder. During the processing, the drill bit is used to drill holes at the head and tail ends of the oil cylinder in sequence. Since the drilling machine has only one set of drill bits, the oil inlet and outlet holes can only be processed separately. When the oil inlet and outlet holes have different apertures, additional tool changing operations are required, which affects production efficiency. Utility Model Content

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a drilling device for processing the oil inlet and outlet of the oil cylinder.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a drilling device for processing oil inlet and outlet ports of a cylinder, comprising a stand, a drilling mechanism is installed on the stand in a liftable manner, the drilling mechanism comprises a mounting frame, two groups of drill bit assemblies are symmetrically arranged on the mounting frame, the drill bit assemblies are slidably installed on the mounting frame, a rack is transversely arranged on the mounting frame, a gear drive assembly is arranged on the drill bit assembly, a motor mounting frame is provided at the upper end of the mounting frame, a spindle motor is fixedly installed on the motor mounting frame, and the spindle motor is connected to the drill bit assembly through a pulley transmission mechanism.

[0007] Furthermore, the drill bit assembly includes a gear box, which is laterally slidably mounted on a mounting frame, an output shaft is provided at the bottom of the gear box, a drill bit is cooperatively mounted on the power output shaft, and an input shaft is provided at the top of the gear box.

[0008] Furthermore, the gear drive assembly includes a bracket, a first servo motor is fixedly mounted on the bracket, and a gear meshing with the rack is fixedly mounted on the rotating shaft of the first servo motor.

[0009] Furthermore, the pulley transmission mechanism includes a driving wheel, which is fixedly mounted on the rotating shaft of the spindle motor, a driven wheel is fixedly mounted on the end of the input shaft, an elastic telescopic rod is fixedly mounted on the front end of the motor mounting frame, a bearing seat is fixedly mounted on the end of the elastic telescopic rod, a tensioning wheel is rotatably mounted on the bearing seat, and the driving wheel, driven wheel and tensioning wheel are connected in series through a belt.

[0010] Furthermore, the mounting frame is longitudinally slidably mounted on the vertical frame, a second servo motor is fixedly mounted on the top of the vertical frame, a lead screw is rotatably mounted on the vertical frame, a rotating shaft of the lead screw is connected to the rotating shaft of the second servo motor, a lead screw nut is cooperatively mounted on the lead screw, and the lead screw nut is fixedly mounted on the rear side wall of the mounting frame.

[0011] Furthermore, a workbench is provided on the front side of the stand, and a positioning tool for fixing the oil cylinder is fixedly installed on the workbench.

[0012] The beneficial effect of the utility model is that the design of the utility model is designed with two sets of drill bit assemblies on the mounting frame. During processing, according to the positions of the oil inlet hole and the oil outlet hole to be processed, the gear box is driven by the first servo motor to move, so that the drill bit moves above the hole position to be processed, and then the spindle motor is started to rotate the drill bit for drilling processing. Therefore, the drilling processing of the oil inlet hole and the oil outlet hole can be carried out at the same time. When the apertures of the oil inlet hole and the oil outlet hole are different, the corresponding drill bits can be replaced separately without repeated tool changing operations, thereby effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0017] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the BB direction.

[0018] In the figure: 1. stand, 2. mounting frame, 3. rack, 4. motor mounting frame, 5. spindle motor, 6. gear box, 61. output shaft, 62. input shaft, 7. drill bit, 8. bracket, 9. first servo motor, 10. gear, 11. driving wheel, 12. driven wheel, 13. elastic telescopic rod, 14. bearing seat, 15. tensioning wheel, 16. belt, 17. second servo motor, 18. screw, 19. screw nut, 20. workbench, 21. positioning tooling. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0020] according to Figure 1-4 As shown, a drilling device for processing the oil inlet and outlet of a cylinder comprises a stand 1, on which a drilling mechanism is installed in a liftable manner, the drilling mechanism comprises a mounting frame 2, on which two groups of drill bit 7 assemblies are symmetrically arranged, the drill bit 7 assembly is slidably mounted on the mounting frame 2, a rack 3 is transversely arranged on the mounting frame 2, a gear 10 driving assembly is arranged on the drill bit 7 assembly, a motor mounting frame 4 is arranged at the upper end of the mounting frame 2, a spindle motor 5 is fixedly installed on the motor mounting frame 4, and the spindle motor 5 is connected to the drill bit 7 assembly through a pulley transmission mechanism.

[0021] In this embodiment, the drill bit 7 assembly includes a gear box 6, which is laterally slidably mounted on the mounting frame 2 through a guide rail slider assembly. An output shaft 61 is provided at the bottom of the gear box 6, and the drill bit 7 is mounted on the power output shaft 61. An input shaft 62 is provided at the top of the gear box 6. External power is transmitted to the interior of the gear box 6 through the input shaft 62, and then output from the output shaft 61 after being decelerated by the gear 10.

[0022] In this embodiment, the gear 10 driving assembly includes a bracket 8, on which a first servo motor 9 is fixedly mounted, and on the rotating shaft of the first servo motor 9 a gear 10 meshing with the rack 3 is fixedly mounted. The gear 10 is driven to rotate by the first servo motor 9, and the position of the gear box 6 on the mounting frame 2 is adjusted under the cooperation of the gear 10 and the rack 3.

[0023] In this embodiment, the pulley transmission mechanism includes a driving wheel 11, which is fixedly mounted on the rotating shaft of the spindle motor 5, a driven wheel 12 is fixedly mounted on the end of the input shaft 62, an elastic telescopic rod 13 is fixedly mounted on the front end of the motor mounting frame 4, a bearing seat 14 is fixedly mounted on the end of the elastic telescopic rod 13, and a tensioning wheel 15 is rotatably mounted on the bearing seat 14. The driving wheel 11, the driven wheel 12 and the tensioning wheel 15 are connected in series through a belt 16. When the gear box 6 moves on the mounting frame 2, the belt 16 is always in a tensioned state through the tensioning wheel 15, so that the power of the spindle motor 5 is transmitted to the input shaft 62 of the gear box 6 through the belt 16.

[0024] In this embodiment, the mounting frame 2 is longitudinally slidably installed on the vertical frame 1 through a guide rail slider assembly, a second servo motor 17 is fixedly installed on the top of the vertical frame 1, a lead screw 18 is rotatably installed on the vertical frame 1, the rotating shaft of the lead screw 18 is connected to the rotating shaft of the second servo motor 17 through a coupling, a lead screw nut 19 is installed on the lead screw 18, and the lead screw nut 19 is fixedly installed on the rear side wall of the mounting frame 2, and the mounting frame 2 is driven by the second servo motor 17 to be raised and lowered as a whole.

[0025] In this embodiment, a workbench 20 is provided on the front side of the stand 1 , and a positioning tool 21 for fixing the oil cylinder is fixedly installed on the workbench 20 .

[0026] The specific working process of the utility model is as follows: first, the oil cylinder to be processed is fixedly installed on the workbench by the positioning tool 21, and then the first servo motor 9 is started respectively according to the positions of the oil inlet hole and the oil outlet hole to be processed, and the gear box 6 is driven by the first servo motor 9 to move, so that the drill bit 7 is moved above the hole to be processed, and then the spindle motor 5 is started to rotate the drill bit 7, and then the second servo motor 17 is started, and the drill bit 7 moves down for drilling processing under the action of the lead screw 18 and the lead screw nut 19, so that the drilling processing of the oil inlet hole and the oil outlet hole can be carried out at the same time. When the apertures of the oil inlet hole and the oil outlet hole are different, the corresponding drill bit 7 can be replaced separately without repeated tool changing operations, thereby effectively improving the production efficiency.

[0027] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A drilling device for processing an oil cylinder inlet and outlet, comprising a stand (1), characterized in that: A drilling mechanism is installed on the stand (1) in a liftable manner, and the drilling mechanism comprises a mounting frame (2), on which two groups of drill bit (7) assemblies are symmetrically arranged, and the drill bit (7) assemblies are slidably installed on the mounting frame (2), and a rack (3) is transversely arranged on the mounting frame (2), and a gear (10) driving assembly is provided on the drill bit (7) assembly, and a motor mounting frame (4) is provided at the upper end of the mounting frame (2), and a spindle motor (5) is fixedly installed on the motor mounting frame (4), and the spindle motor (5) is connected to the drill bit (7) assembly through a pulley transmission mechanism.

2. A drilling device for processing oil inlet and outlet ports of a cylinder according to claim 1, characterized in that: The drill bit (7) assembly comprises a gear box (6), the gear box (6) is laterally slidably mounted on a mounting frame (2), an output shaft (61) is provided at the bottom of the gear box (6), a drill bit (7) is cooperatingly mounted on the output shaft (61), and an input shaft (62) is provided at the top of the gear box (6).

3. A drilling device for processing oil inlet and outlet ports of a cylinder according to claim 2, characterized in that: The gear (10) driving assembly comprises a bracket (8), a first servo motor (9) is fixedly mounted on the bracket (8), and a gear (10) meshing with the rack (3) is fixedly mounted on the rotating shaft of the first servo motor (9).

4. A drilling device for processing oil inlet and outlet ports of a cylinder according to claim 3, characterized in that: The pulley transmission mechanism comprises a driving wheel (11), the driving wheel (11) is fixedly mounted on the rotating shaft of the spindle motor (5), a driven wheel (12) is fixedly mounted on the end of the input shaft (62), an elastic telescopic rod (13) is fixedly mounted on the front end of the motor mounting frame (4), a bearing seat (14) is fixedly mounted on the end of the elastic telescopic rod (13), a tensioning wheel (15) is rotatably mounted on the bearing seat (14), and the driving wheel (11), the driven wheel (12) and the tensioning wheel (15) are connected in series via a belt (16).

5. A drilling device for processing oil inlet and outlet ports of a cylinder according to claim 1, characterized in that: The mounting frame (2) is longitudinally slidably mounted on the vertical frame (1), a second servo motor (17) is fixedly mounted on the top of the vertical frame (1), a lead screw (18) is rotatably mounted on the vertical frame (1), a rotating shaft of the lead screw (18) is connected to a rotating shaft of the second servo motor (17), a lead screw nut (19) is matched with the lead screw (18), and the lead screw nut (19) is fixedly mounted on the rear side wall of the mounting frame (2).

6. A drilling device for processing oil inlet and outlet ports of an oil cylinder according to any one of claims 1 to 5, characterized in that: A workbench (20) is provided on the front side of the stand (1), and a positioning tool (21) for fixing the oil cylinder is fixedly mounted on the workbench (20).

Images