Five-axis numerical control tool sharpener structure

Abstract

The utility model discloses a five-axis numerical control tool sharpener structure which comprises a machine frame, a C-axis linear guide rail extending in the left-right direction is installed on the top of the left side of the machine frame, a spindle box module is installed on a sliding block on the top of the C-axis linear guide rail, and a C-axis servo motor is installed on the left side of the machine frame. A motor shaft of the C-axis servo motor is connected with a C-axis ball screw through a first coupler, a C-axis nut seat in threaded connection with the C-axis ball screw is arranged at the bottom of the spindle box module, the spindle box module comprises a spindle box, a spindle is installed on the spindle box, a grinding wheel disc is installed at the right end of the spindle, and a grinding wheel is installed at the right end of the grinding wheel disc. A grinding wheel is installed on the grinding wheel disc, an inclined rail workbench base is installed on the top of the right side of the rack, and an X-axis linear guide rail extending in the front-back direction is installed on the top of the inclined rail workbench base. The utility model has compact and stable structure, improves the rigidity of the whole machine, ensures the stability of high-speed operation, and improves the quality and efficiency of processed products.

Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpening equipment, in particular to a five-axis numerically controlled knife sharpening machine structure. Background Art

[0002] At present, the CNC end face grinders on the market generally adopt the optical axis guide rail copper sleeve structure. This structure has low operating accuracy and cannot meet the current market demand for using CNC machines to produce high-quality and high-efficiency products. At the same time, the existing three-axis and four-axis CNCs cannot meet the market's demand for processing individual types of products, and the user experience is not good. Therefore, in order to avoid the shortcomings of the existing technology, it is necessary to improve the existing technology. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a five-axis CNC knife sharpening machine structure with high operating accuracy and high production efficiency.

[0004] The utility model is realized by the following technical solutions:

[0005] A five-axis CNC tool sharpening machine structure comprises a frame, a C-axis linear guide extending left and right is installed on the top of the left side of the frame, a spindle box module is installed on the slider on the top of the C-axis linear guide, a C-axis servo motor is installed on the left side of the frame, a motor shaft of the C-axis servo motor is connected to a C-axis ball screw through a first shaft coupling, a C-axis nut seat screwed to the C-axis ball screw is provided at the bottom of the spindle box module, the spindle box module comprises a spindle box, a spindle is installed on the spindle box, A grinding wheel disc is installed at the right end of the main shaft, and a grinding wheel is installed on the grinding wheel disc. An inclined rail workbench base is installed on the top of the right side of the frame. An X-axis linear guide extending forward and backward is installed on the top of the inclined rail workbench base. An X-axis slide plate is installed on the slider on the top of the X-axis linear guide. An X-axis servo motor is installed on the rear side of the inclined rail workbench base. The motor shaft of the X-axis servo motor is connected to an X-axis ball screw through a second shaft coupling. The bottom of the X-axis slide plate is provided with a screw thread connected to the X-axis ball screw. The X-axis nut seat is connected to the X-axis slide, the top of the X-axis slide is equipped with a Z-axis linear guide extending left and right, the slider of the Z-axis linear guide is equipped with a Z-axis feed tool holder, a Z-axis servo motor is installed on the right side of the Z-axis feed tool holder, the motor shaft of the Z-axis servo motor is connected to a Z-axis ball screw through a third shaft coupling, the Z-axis feed tool holder is provided with a Z-axis nut seat screwed with the Z-axis ball screw, the left side of the Z-axis feed tool holder is equipped with a Y-axis linear guide extending up and down, the Y-axis linear guide A Y-axis slide plate is installed on the slider, a Y-axis servo motor is installed on the top of the left side of the Z-axis feed tool holder, the motor shaft of the Y-axis servo motor is connected to a Y-axis ball screw through a fourth shaft coupling, the Y-axis slide plate is provided with a Y-axis nut seat screwed with the Y-axis ball screw, a rotating shaft is installed on the left side of the Y-axis slide plate, a fixture installation panel is installed on the left side of the rotating shaft, an A-axis servo motor is installed on the front side of the Y-axis slide plate, and the A-axis servo motor is connected to the rotating shaft through an RV reducer.

[0006] Furthermore, a three-phase asynchronous motor is installed on the top of the spindle box, the motor shaft of the three-phase asynchronous motor is connected to a driving pulley, the left end of the spindle is connected to a driven pulley, and the driving pulley is connected to the driven pulley through a belt.

[0007] Furthermore, a grinding wheel cover is provided in the middle of the top of the frame.

[0008] Furthermore, a probe detection device is installed on the top of the grinding wheel cover.

[0009] Furthermore, an electrical control cabinet is provided on the rear side of the rack.

[0010] Furthermore, a numerical control system is provided on the front side of the frame.

[0011] Compared with the prior art, the utility model is provided with a C-axis servo motor installed on the left side of the frame, the motor shaft of the C-axis servo motor is connected to a C-axis ball screw through a first shaft coupling, a C-axis nut seat screwed with the C-axis ball screw is provided at the bottom of the spindle box module, a spindle is installed on the spindle box, a grinding wheel is installed on the right end of the spindle, a grinding wheel is installed on the grinding wheel, an X-axis servo motor is installed on the rear side of the inclined rail workbench base, and the motor shaft of the X-axis servo motor is connected to an X-axis ball screw through a second shaft coupling , an X-axis nut seat screwed to the X-axis ball screw is provided at the bottom of the X-axis slide plate, a Z-axis servo motor is installed on the right side of the Z-axis feed tool holder, the motor shaft of the Z-axis servo motor is connected to a Z-axis ball screw through a third shaft coupling, the Z-axis feed tool holder is provided with a Z-axis nut seat screwed to the Z-axis ball screw, a Y-axis servo motor is installed on the top of the left side of the Z-axis feed tool holder, the motor shaft of the Y-axis servo motor is connected to a Y-axis ball screw through a fourth shaft coupling, and the Y-axis slide plate is provided with a Y-axis nut screw screwed to the Y-axis ball screw The mother seat and the left side of the Y-axis slide are equipped with a rotating shaft, and the left side of the rotating shaft is equipped with a fixture installation panel. An A-axis servo motor is installed on the front side of the Y-axis slide. The A-axis servo motor is connected to the rotating shaft through the RV reducer. When working, the C-axis servo motor controls the left and right movement of the spindle box to realize the left and right feeding of the grinding wheel, the X-axis servo motor controls the front and back movement of the X-axis slide, the Z-axis servo motor controls the left and right movement of the Z-axis feed tool holder, the Y-axis servo motor controls the lifting and lowering of the Y-axis slide, and the A-axis servo motor controls the rotation of the rotating shaft to realize the front and back movement, left and right movement, up and down movement and swing of the product installed on the fixture installation panel. The five-axis linkage structure solves the problems of rough surface texture and wave dents in the processing of high-end products by three- and four-axis CNC machines, and the inability to process individual types of products. The structure of the five-axis CNC grinder is compact and stable, the rigidity of the whole machine is improved, the stability of high-speed operation is guaranteed, the quality and efficiency of the processed products are improved, and the grinding surface of the processed products is more uniform, smooth and standard, with the following beneficial effects:

[0012] 1. The longitudinal forward and backward moving axis (X axis), right lateral feed axis (Z axis), lifting moving axis (Y axis), swing axis (A axis) and left lateral feed axis (C axis) all adopt the linear guide structure, which improves the operation accuracy of the machine tool and increases the structural rigidity, improves the operation stability of the machine tool. Due to the reduction of sliding friction, each axis can run at a higher speed, improving production efficiency.

[0013] 2. The structure is compact and stable, it adopts servo CNC control mode, and is equipped with a five-axis CNC grinding machine system specially developed for hardware knife and scissors machinery.

[0014] 3. The inclined rail workbench base and the inclined rail tool holder have stronger rigidity through force analysis.

[0015] 4. The swing axis (A axis) adopts a high-precision RV reducer structure, which improves the accuracy of the swing angle, and the overall structure is simple and durable.

[0016] 5. Tool compensation can be selected in two ways: quantitative compensation and tool setting probe compensation. In response to unstable factors such as different materials and hardness loss of grinding wheels, the probe detection device and tool setting probe compensation are selected to achieve more accurate numerical compensation and better meet the needs of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is a schematic diagram of the structure of the five-axis CNC knife sharpening machine of the utility model;

[0019] Figure 2 It is a front view of the five-axis CNC knife sharpening machine of the utility model;

[0020] Figure 3 It is a top view of the five-axis CNC knife sharpening machine of the utility model;

[0021] Figure 4 It is a front view of the spindle box module of the utility model;

[0022] Figure 5 for Figure 4 AA section view;

[0023] Figure 6 It is a right view of the base connection structure of the inclined rail workbench of the utility model;

[0024] Figure 7 for Figure 6 BB cross-sectional view;

[0025] Figure 8 It is a top view of the base connection structure of the inclined rail workbench of the utility model;

[0026] Fig. 9 It is a rear view of the base connection structure of the inclined rail workbench of the utility model.

[0027] In the figure: 1-frame; 2-C-axis linear guide; 3-spindle box module; 4-C-axis nut seat; 5-C-axis ball screw; 6-C-axis servo motor; 7-grinding wheel cover; 8-probe detection device; 9-electric box control cabinet; 10-CNC system; 11-spindle box; 12-spindle; 13-grinding wheel; 14-three-phase asynchronous motor; 15-grinding wheel; 16-inclined rail workbench base; 17-X-axis linear guide; 18-X-axis Ball screw; 19-X-axis servo motor; 20-X-axis slide; 21-Z-axis linear guide; 22-Z-axis ball screw; 23-Z-axis nut seat; 24-Z-axis feed tool holder; 25-Z-axis servo motor; 26-Y-axis linear guide; 27-Y-axis ball screw; 28-Y-axis servo motor; 29-Y-axis slide; 30-rotating shaft; 31-RV reducer; 32-A-axis servo motor; 33-fixture installation panel. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] like Figures 1 to 9The utility model is a five-axis CNC tool sharpening machine structure, including a frame 1, a C-axis linear guide 2 extending left and right is installed on the top of the left side of the frame 1, a spindle box module 3 is installed on the slider on the top of the C-axis linear guide 2, a C-axis servo motor 6 is installed on the left side of the frame 1, a motor shaft of the C-axis servo motor 6 is connected to a C-axis ball screw 5 through a first shaft coupling, a C-axis nut seat 4 screwed to the C-axis ball screw 5 is provided at the bottom of the spindle box module 3, the spindle box module 3 includes a spindle box 11, the spindle box 11 is installed with a spindle 12, the spindle 12 A grinding wheel disc 13 is installed at the right end of the frame 1, and a grinding wheel 15 is installed on the grinding wheel disc 13. A ramp workbench base 16 is installed on the top of the right side of the frame 1. An X-axis linear guide 17 extending forward and backward is installed on the top of the ramp workbench base 16. An X-axis slide plate 20 is installed on the slider at the top of the X-axis linear guide 17. An X-axis servo motor 19 is installed on the rear side of the ramp workbench base 16. The motor shaft of the X-axis servo motor 19 is connected to an X-axis ball screw 18 through a second shaft coupling. The bottom of the X-axis slide plate 20 is provided with a screw connection with the X-axis ball screw 18. An X-axis nut seat is provided, a Z-axis linear guide 21 extending left and right is installed on the top of the X-axis slide plate 20, a Z-axis feed tool holder 24 is installed on the slider of the Z-axis linear guide 21, a Z-axis servo motor 25 is installed on the right side of the Z-axis feed tool holder 24, a motor shaft of the Z-axis servo motor 25 is connected to a Z-axis ball screw 22 through a third shaft coupling, the Z-axis feed tool holder 24 is provided with a Z-axis nut seat 23 screwed to the Z-axis ball screw 22, a Y-axis linear guide 26 extending up and down is installed on the left side of the Z-axis feed tool holder 24, and the Y-axis linear guide 26 is installed on the right side of the Z-axis feed tool holder The slider is equipped with a Y-axis slide plate 29, and a Y-axis servo motor 28 is installed on the top of the left side of the Z-axis feed tool holder 24. The motor shaft of the Y-axis servo motor 28 is connected to a Y-axis ball screw 27 through a fourth shaft coupling. The Y-axis slide plate 29 is provided with a Y-axis nut seat screwed with the Y-axis ball screw 27. A rotating shaft 30 is installed on the left side of the Y-axis slide plate 29, and a fixture installation panel 33 is installed on the left side of the rotating shaft 30. An A-axis servo motor 32 is installed on the front side of the Y-axis slide plate 29, and the A-axis servo motor 32 is connected to the rotating shaft 30 through an RV reducer 32.A C-axis servo motor 6 is installed on the left side of the frame 1, and the motor shaft of the C-axis servo motor 6 is connected to a C-axis ball screw 5 through a first shaft coupling. A C-axis nut seat 4 screwed to the C-axis ball screw 5 is provided at the bottom of the spindle box module 3. A spindle 12 is installed on the spindle box 11, and a grinding wheel 13 is installed on the right end of the spindle 12. A grinding wheel 15 is installed on the grinding wheel 13. An X-axis servo motor 19 is installed on the rear side of the inclined rail workbench base 16. The motor shaft of the X-axis servo motor 19 is connected to an X-axis ball screw 18 through a second shaft coupling. The X-axis slide plate 20 An X-axis nut seat screwed to the X-axis ball screw 18 is provided at the bottom, a Z-axis servo motor 25 is installed on the right side of the Z-axis feed tool holder 24, the motor shaft of the Z-axis servo motor 25 is connected to a Z-axis ball screw 22 through a third shaft coupling, the Z-axis feed tool holder 24 is provided with a Z-axis nut seat 23 screwed to the Z-axis ball screw 22, a Y-axis servo motor 28 is installed on the top of the left side of the Z-axis feed tool holder 24, the motor shaft of the Y-axis servo motor 28 is connected to a Y-axis ball screw 27 through a fourth shaft coupling, and the Y-axis slide plate 29 is provided with a Y-axis screw screw 27 screwed to the Y-axis ball screw 27. Nut seat, a rotating shaft 30 is installed on the left side of the Y-axis slide 29, a fixture installation panel 33 is installed on the left side of the rotating shaft 30, an A-axis servo motor 32 is installed on the front side of the Y-axis slide 29, and the A-axis servo motor 32 is connected to the rotating shaft 30 through the RV reducer 21. When working, the C-axis servo motor 6 controls the spindle box 11 to move left and right to realize the left and right feeding of the grinding wheel 15, the X-axis servo motor 19 controls the X-axis slide 20 to move forward and backward, the Z-axis servo motor 25 controls the Z-axis feed tool holder 24 to move left and right, and the Y-axis servo motor 28 controls the Y-axis slide 29 to move up and down. The A-axis servo motor 32 controls the rotation of the rotating shaft 30 to realize the forward and backward movement, left and right movement, up and down movement and swinging of the product installed on the fixture mounting panel 33. The five-axis linkage structure solves the problems of rough surface texture and wave dents in the three- and four-axis CNC machine processing of high-end products and the inability to meet the processing of certain types of products. The structure of the five-axis CNC grinder is compact and stable, the rigidity of the whole machine is improved, the stability of high-speed operation is guaranteed, the quality and efficiency of the processed products are improved, and the grinding surface of the processed products is more uniform, smooth and standard, with the following beneficial effects:.

[0030] 1. The longitudinal forward and backward moving axis (X axis), right lateral feed axis (Z axis), lifting moving axis (Y axis), swing axis (A axis) and left lateral feed axis (C axis) all adopt the linear guide structure, which improves the operation accuracy of the machine tool and increases the structural rigidity, improves the operation stability of the machine tool. Due to the reduction of sliding friction, each axis can run at a higher speed, improving production efficiency.

[0031] 2. The structure is compact and stable, it adopts servo CNC control mode, and is equipped with a five-axis CNC grinding machine system specially developed for hardware knife and scissors machinery.

[0032] 3. The inclined rail workbench base and the inclined rail tool holder have stronger rigidity through force analysis.

[0033] 4. The swing axis (A axis) adopts a high-precision RV reducer structure, which improves the accuracy of the swing angle, and the overall structure is simple and durable.

[0034] 5. Tool compensation can be selected in two ways: quantitative compensation and tool setting probe compensation. In response to unstable factors such as different materials and hardness loss of grinding wheels, the probe detection device and tool setting probe compensation are selected to achieve more accurate numerical compensation and better meet the needs of automated production.

[0035] A three-phase asynchronous motor 17 is installed on the top of the spindle box 11, the motor shaft of the three-phase asynchronous motor 14 is connected to a driving pulley, the left end of the spindle 12 is connected to a driven pulley, and the driving pulley is connected to the driven pulley through a belt transmission, so that the rotation of the spindle 12 is stable and efficient, and the grinding wheel 15 rotates stably and has high grinding efficiency.

[0036] A grinding wheel cover 7 is provided in the middle of the top of the frame 1 to effectively protect the grinding wheel 15 from external influences during operation.

[0037] A probe detection device 8 is installed on the top of the grinding wheel cover 7. When in use, the system controls the left side lateral feed axis (C axis) to run to the right, so that the grinding wheel 15 touches the probe detection device 8, and feeds back the wear value of the grinding wheel 15 for compensation. Corresponding to the different materials, hardness loss and other unstable factors of the grinding wheel, the tool setting probe detection device is selected for compensation, which can achieve more accurate numerical compensation and better meet the needs of automated production.

[0038] An electric box control cabinet 9 is provided at the rear side of the frame 1 to control the power supply of the equipment and improve the safety of use.

[0039] A numerical control system 10 is provided on the front side of the frame 1 to realize humanized operation and control the machining process and machining trajectory. The program can be written manually, or the machining program can be automatically generated by directly inputting simple parameters. The machining program can also be generated by directly reading the "DXF" drawing. A dedicated five-axis CNC grinder system is used to make the grinding surface of the processed product more uniform, smooth and standard.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 five-axis CNC knife sharpening machine structure, characterized in that: The machine comprises a frame, a C-axis linear guide extending left and right is installed on the top of the left side of the frame, a spindle box module is installed on the slider at the top of the C-axis linear guide, a C-axis servo motor is installed on the left side of the frame, a motor shaft of the C-axis servo motor is connected to a C-axis ball screw through a first shaft coupling, a C-axis nut seat screwed with the C-axis ball screw is provided at the bottom of the spindle box module, the spindle box module comprises a spindle box, a spindle is installed on the spindle box, a grinding wheel is installed on the right end of the spindle, a grinding wheel is installed on the grinding wheel, an inclined rail workbench base is installed on the top of the right side of the frame, an X-axis linear guide extending front and back is installed on the top of the inclined rail workbench base, an X-axis slide board is installed on the slider at the top of the X-axis linear guide, an X-axis servo motor is installed on the rear side of the inclined rail workbench base, the motor shaft of the X-axis servo motor is connected to an X-axis ball screw through a second shaft coupling, and an X-axis nut screwed with the X-axis ball screw is provided at the bottom of the X-axis slide board The top of the X-axis slide is equipped with a Z-axis linear guide extending left and right, the slider of the Z-axis linear guide is equipped with a Z-axis feed tool holder, a Z-axis servo motor is installed on the right side of the Z-axis feed tool holder, the motor shaft of the Z-axis servo motor is connected with a Z-axis ball screw through a third shaft coupling, the Z-axis feed tool holder is provided with a Z-axis nut seat screwed with the Z-axis ball screw, the left side of the Z-axis feed tool holder is equipped with a Y-axis linear guide extending up and down, the slider of the Y-axis linear guide A Y-axis skateboard is installed, a Y-axis servo motor is installed on the top of the left side of the Z-axis feed tool holder, the motor shaft of the Y-axis servo motor is connected to a Y-axis ball screw through a fourth shaft coupling, the Y-axis skateboard is provided with a Y-axis nut seat screwed to the Y-axis ball screw, a rotating shaft is installed on the left side of the Y-axis skateboard, a fixture installation panel is installed on the left side of the rotating shaft, an A-axis servo motor is installed on the front side of the Y-axis skateboard, and the A-axis servo motor is connected to the rotating shaft through an RV reducer.

2. The five-axis CNC knife sharpening machine structure according to claim 1 is characterized in that: A three-phase asynchronous motor is installed on the top of the spindle box, the motor shaft of the three-phase asynchronous motor is connected to a driving pulley, the left end of the spindle is connected to a driven pulley, and the driving pulley is connected to the driven pulley through a belt.

3. The five-axis CNC knife sharpening machine structure according to claim 1 is characterized in that: A grinding wheel cover is arranged in the middle of the top of the frame.

4. The five-axis CNC knife sharpening machine structure according to claim 3 is characterized in that: A probe detection device is installed on the top of the grinding wheel cover.

5. The five-axis CNC knife sharpening machine structure according to claim 1 is characterized in that: An electric box control cabinet is arranged on the rear side of the frame.

6. The five-axis CNC knife sharpening machine structure according to claim 1 is characterized in that: A numerical control system is arranged on the front side of the frame.

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