Cutter grinding machine tool

Abstract

The utility model relates to the field of cutter machining equipment, in particular to a cutter grinding machine tool which comprises a supporting shaft arranged on a cutter in a penetrating mode and further comprises a machine tool platform and a grinding unit arranged on the machine tool platform, and the grinding unit is used for grinding the cutting edge face of the cutter. A driving shaft used for driving the supporting shaft to rotate is rotationally arranged on the machine tool platform, a sliding clamping unit is arranged on the machine tool platform, the sliding clamping unit corresponds to the driving shaft and is suitable for pushing the supporting shaft to abut against the supporting shaft, and inserting grooves are formed in the two ends of the supporting shaft. The sliding clamping unit and the driving shaft are each provided with a tip end, the tip ends can be inserted into the inserting grooves, so that the axis of the supporting shaft and the axis of the driving shaft are collinear, and the driving shaft drives the supporting shaft to rotate through a connecting piece. The time for mounting and dismounting the supporting shaft is saved, and the grinding efficiency of a machine tool on a cutter is improved. And the effect is improved.

Description

Technical Field

[0001] The present application relates to the field of tool processing equipment, and in particular to a tool grinding machine. Background Art

[0002] At present, with the rapid development of the manufacturing industry, hob tools play an important role in industrial production and manufacturing. As the use time of the tool increases, the blade surface of the tool will wear and curl, causing the tool to become blunt, so the used tool needs to be polished regularly.

[0003] Before grinding the hob tool, the tool needs to be positioned. The traditional positioning method is to put the tool on the support shaft, and then install both ends of the support shaft to the power output mechanism through a coupling. The power output mechanism drives the tool to rotate so that the blade surfaces on the tool can be ground one by one. However, both ends of the support shaft are installed through a coupling, which makes the installation and removal of the tool take a lot of time, thereby reducing the grinding efficiency of the grinding machine. Utility Model Content

[0004] In order to improve the problem that both installation and removal of the tool take a long time, resulting in reduced grinding efficiency of the grinding machine, the present application provides a tool grinding machine.

[0005] The present application provides a tool grinding machine tool adopting the following technical solution:

[0006] A tool grinding machine comprises a support shaft passed through the tool, a machine tool platform and a grinding unit arranged on the machine tool platform, the grinding unit is used to grind the blade surface of the tool, a driving shaft for driving the support shaft to rotate is rotatably provided on the machine tool platform, a sliding clamping unit is provided on the machine tool platform, the sliding clamping unit is arranged corresponding to the driving shaft, and is suitable for pushing the support shaft to abut against the support shaft, slots are provided at both ends of the support shaft, and tips are provided on the sliding clamping unit and the driving shaft, and the tips can be inserted into the slots so that the axes of the support shaft and the driving shaft are in line, and the driving shaft drives the support shaft to rotate through a connecting member.

[0007] By adopting the above technical solution, when installing the tool, first pass the support shaft through the tool, then place the support shaft between the sliding clamping unit and the driving shaft, and then drive the sliding clamping unit toward the support shaft, so that the tips on the sliding clamping unit and the driving shaft are respectively inserted into the slots at both ends of the support shaft, and then connect the driving shaft to the support shaft through a connecting piece. Compared with the traditional method of installing both ends of the support shaft through a coupling, this solution only needs to fix one end of the support shaft through a connecting piece, thereby saving the time for installing and disassembling the support shaft and improving the grinding efficiency of the machine tool for the tool.

[0008] In a specific possible implementation scheme, the sliding clamping unit includes a push rod rotatably arranged on the machine tool platform, the push rod is threadedly connected to the machine tool platform, and the tip is arranged at one end of the push rod facing the drive shaft and is coaxially arranged with the drive shaft.

[0009] By adopting the above technical solution, when installing the support shaft, first place the support shaft between the push rod and the drive shaft, then rotate the push rod, and insert the tip of the push rod into the slot. When the operator installs the drive shaft and the support shaft through the connecting piece, there is no need to use tools to support the support shaft, which facilitates the installation of the support shaft.

[0010] In a specific possible implementation manner, a rotating disk is coaxially fixed on the top rod, and a rocker is eccentrically provided on the rotating disk.

[0011] By adopting the above technical solution, the eccentric rocker is used to drive the rotating disk to rotate, and the rotating disk drives the top rod to rotate, thereby improving the convenience of rotating the top rod.

[0012] In a specific possible implementation mode, the connecting member includes a fixing rod and two groups of clamps, the two groups of clamps are fixedly sleeved on the supporting shaft and the driving shaft respectively, and the fixing rod is fixedly connected to the two groups of clamps.

[0013] By adopting the above technical solution, when installing between the support shaft and the drive shaft, the two sets of clamps are respectively put on the drive shaft and the support shaft, and clamped and fixed. Since the tip of the drive shaft is inserted into the slot on the support shaft to complete the centering operation of the two, there is no need to use clamps to ensure the centering of the drive shaft and the support shaft, thereby improving the convenience of the installation operation of the drive shaft and the support shaft.

[0014] In a specific possible implementation scheme, the grinding unit includes a three-axis movable frame, a drive motor, and a grinding wheel. The three-axis movable frame is arranged on the machine tool platform, the drive motor is arranged on the three-axis movable frame, and the grinding wheel is coaxially fixed on the output shaft of the drive motor. The three-axis movable frame is used to drive the grinding wheel to move in space, and a grinding surface for grinding the blade surface is provided on the end face of the grinding wheel.

[0015] By adopting the above technical solution, the three-axis moving frame is used to drive the grinding surface on the grinding wheel to contact the blade surface, and then the driving motor is used to drive the grinding wheel to rotate. The three-axis moving frame drives the rotating grinding surface to grind the blade surface, thereby ensuring the accuracy and stability of the blade surface grinding of the tool.

[0016] In a specific possible implementation manner, the grinding surface and the blade surface are in line contact, and the contact generatrix is ​​set as a grinding generatrix, and the grinding generatrix is ​​arranged along the vertical direction.

[0017] By adopting the above technical solution, the grinding surface is vertically arranged and in linear contact with the blade surface, so that the grinding surface and the blade surface are more closely fitted, and the uniformity of grinding the grinding surface to the blade surface is improved.

[0018] In a specific possible implementation manner, the included angle α between the generatrix of the grinding surface and the end surface of the grinding wheel is 12°.

[0019] By adopting the above technical solution, the angle between the generatrix of the grinding surface and the end face of the grinding wheel is set to 12°, so that the wear of the grinding wheel is minimized.

[0020] In a specific possible implementation manner, a grinding block is provided on the machine tool platform, and the grinding block is used to grind and smooth the grinding surface.

[0021] By adopting the above technical solution, when the grinding surface is finished grinding a tool, the grinding surface is polished and leveled by the grinding block, so that the grinding effect of the grinding surface on the blade surface can be improved.

[0022] In a specific possible implementation mode, a retaining ring and a fixing nut are provided on the support shaft, the cutter is located between the retaining ring and the fixing nut, and the fixing nut can press and fix the cutter on the retaining ring.

[0023] By adopting the above technical solution, when installing the tool and the support shaft, the tool is sleeved on the support shaft, and then the fixing nut is screwed to tightly fix the tool on the retaining ring, which facilitates the installation of the tool.

[0024] In a specific possible implementation mode, an elastic pad is provided between the tool and the support shaft, and the elastic pad can be pressed tightly against the tool and the support shaft.

[0025] By adopting the above technical solution, the elastic pad is used to press the support shaft and the tool tightly, thereby improving the stability of the tool installed on the support shaft.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When installing the tool, first pass the support shaft through the tool, then place the support shaft between the sliding clamping unit and the driving shaft, then drive the sliding clamping unit toward the support shaft, so that the tips of the sliding clamping unit and the driving shaft are respectively inserted into the slots at both ends of the support shaft, and then connect the driving shaft to the support shaft through the connecting piece. This solution only needs to fix one end of the support shaft through the connecting piece, thereby saving the time of installing and disassembling the support shaft and improving the grinding efficiency of the machine tool for the tool;

[0028] 2. The grinding surface is set vertically and in line contact with the blade surface to make the grinding surface and the blade surface fit more closely, improve the uniformity of the grinding of the grinding surface to the blade surface, and set the angle between the generatrix of the grinding surface and the end face of the grinding wheel to 12° to minimize the wear of the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a tool grinding machine tool according to an embodiment of the present application.

[0030] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0031] Figure 3 It is a schematic diagram for showing the structure of the support shaft.

[0032] Figure 4 is along Figure 3 Cross-sectional view along line BB.

[0033] Figure 5 yes Figure 1 Enlarged view of part C in the middle.

[0034] Figure 6 It is a schematic diagram used to show the structure of the grinding wheel.

[0035] Figure 7 is along Figure 6 Sectional view along line DD.

[0036] Figure 8 yes Figure 7 Enlarged view of middle part E.

[0037] Explanation of the accompanying drawings: 1. Machine tool platform; 11. Rotating support; 12. Motor support; 13. Servo motor; 2. Grinding unit; 21. Three-axis moving frame; 211. X-axis moving frame; 212. Y-axis moving frame; 213. Z-axis moving frame; 22. Driving motor; 23. Grinding wheel; 231. Grinding surface; 232. Grinding busbar; 3. Sliding clamping unit; 31. Push rod; 32. Rotating disk; 33. Rocker; 4. Driving shaft; 5. Positioning unit; 6. Tool; 61. Tool groove; 62. Blade surface; 7. Support shaft; 71. Slot; 72. Tip; 73. Retaining ring; 74. Fixing nut; 75. Elastic pad; 8. Connector; 81. Fixing rod; 82. Clamp; 9. Grinding block; 91. Tip. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-8 This application is described in further detail.

[0039] The embodiment of the present application discloses a tool grinding machine.

[0040] Reference Figure 1 , Figure 2 A tool grinding machine includes a machine platform 1, on which a grinding unit 2, a sliding clamping unit 3, a driving shaft 4, and a positioning unit 5 are arranged. A rotating support 11 and a motor support 12 are fixedly arranged on the machine platform 1. The rotating support 11 corresponds to the motor support 12 and is arranged at intervals. The driving shaft 4 is rotatably arranged on the motor support 12, and the sliding clamping unit 3 is arranged on the rotating support 11. A servo motor 13 is fixedly arranged on the motor support 12. In this embodiment, the driving method of the driving shaft 4 is driven by the servo motor 13. In other embodiments, it can also be driven manually. The output shaft of the servo motor 13 is coaxially fixedly connected with the driving shaft 4. The tool 6 in this embodiment is a hob tool 6. The tool 6 is provided with twelve tool grooves 61. The twelve tool grooves 61 are along The tool 6 is evenly spaced in the circumferential direction, and each tool groove 61 is arranged along the axial direction of the tool 6. The tool 6 is sleeved on the support shaft 7. One end of the support shaft 7 is coaxially fixedly connected to the drive shaft 4 through a connecting piece 8. Slots 71 are provided at both ends of the support shaft 7. The axis of the slot 71 is colinear with the axis of the support shaft 7. A tip 72 is provided on the sliding clamping unit 3 and the drive shaft 4. The tip 72 is conical and can be concavely matched with the slot 71 and rotatably connected. The tip 72 is coaxially arranged with the drive shaft 4. The drive shaft 4 drives the support shaft 7 to rotate through the connecting piece 8. The positioning unit 5 positions the tool 6 by point contact with the blade surface 62. After the grinding unit 2 grinds the blade surface 62 in each tool groove 61, the positioning unit 5 positions the tool 6 once.

[0041] When installing the tool 6, the operator sets the tool 6 on the support shaft 7 and fixes it, then places the support shaft 7 horizontally between the drive shaft 4 and the sliding clamping unit 3, and aligns the tip 72 with the slot 71, then drives the tip 72 to be inserted into the slot 71 through the sliding clamping unit 3 and tightens it, then fixes one end of the support shaft 7 to the drive shaft 4 through the connecting piece 8, then positions the tool 6 through the positioning unit 5 so that the blade surface 62 at the top of the tool 6 is in a vertical state, and then grinds the blade surface 62 with the grinding unit 2. After grinding, the servo motor 13 drives the tool 6 to rotate, and then the tool 6 is positioned again through the positioning unit 5 and the grinding unit 2 grinds the blade surface 62. This process is repeated to complete the grinding of the blade surface 62 of the entire tool 6. When the tool 6 is ground, the connecting piece 8 is removed, and then the sliding clamping unit 3 is moved to move the tip 72 out of the slot 71, thereby completing the disassembly of the support shaft 7. Compared with the traditional method in which both ends of the support shaft 7 are fixed by couplings, the present application scheme only needs to fix one end of the support shaft 7, thereby saving the time for installation and disassembly of the support shaft 7 and improving the grinding efficiency of the machine tool for the tool 6.

[0042] Reference Figure 3 , Figure 4 , a retaining ring 73 and a fixing nut 74 are provided on the support shaft 7, and the retaining ring 73 and the fixing nut 74 are respectively arranged on both sides of the tool 6, the retaining ring 73 and the support shaft 7 are integrally manufactured, the fixing nut 74 is threadedly connected with the support shaft 7, and a plurality of elastic pads 75 are sleeved on the support shaft 7, and the number of the elastic pads 75 can be selected according to the axial length of the tool 6, and the elastic pads 75 are located between the tool 6 and the support shaft 7. When the tool 6 is installed on the support shaft 7, firstly select a suitable number of elastic pads 75 according to the axial length of the tool 6, and then sleeve them on the support shaft 7 in sequence, and then sleeve the tool 6 on the elastic pads 75 and press them tightly, so that the gap between the tool 6 and the support shaft 7 can be eliminated by the elastic pads 75, thereby improving the stability of the installation of the tool 6. Then the fixing nut 74 is screwed onto the support shaft 7, so that the fixing nut 74 presses and fixes the tool 6 on the retaining ring 73, thereby completing the installation of the tool 6.

[0043] Reference Figure 1 , Figure 5 The sliding clamping unit 3 in this embodiment includes a push rod 31, which passes through the rotating support 11 and is threadedly connected to the rotating support 11. The axis of the push rod 31 is in line with the axis of the drive shaft 4. The tip 72 is located at the end of the push rod 31 close to the drive shaft 4. The axis of the tip 72 is in line with the axis of the push rod 31. The push rod 31 is coaxially fixed with a rotating disk 32 at the end away from the tip 72. A rocker 33 is fixed on the rotating disk 32. The rocker 33 is arranged at the edge of the rotating disk 32 along the axial direction of the rotating disk 32. When the support shaft 7 is fixed, the push rod 31 is driven to rotate by the rocker 33. The push rod 31 slides toward the support shaft 7 while rotating, and finally inserts the tip 72 into the slot 71 to complete the clamping and fixing of the support shaft 7. It has the advantages of simple operation and quick installation. The eccentrically arranged rocker 33 can improve the convenience of the push rod 31 to rotate.

[0044] Reference Figure 1 , Figure 2 The connecting member 8 in this embodiment includes a fixing rod 81 and two groups of clamps 82. Each group of clamps 82 includes two semicircular rings and two nuts. The two semicircular rings cover the drive shaft 4 or the support shaft 7, and then the ends of the two semicircular rings on the same side are fixed by bolts. One end of the fixing rod 81 is fixedly connected to the semicircular rings in one group of clamps 82, and the other end is fixedly connected to the semicircular rings in the other group of clamps 82. When the tips 72 on both sides of the support shaft 7 are inserted into the slots 71, the operator sets the semicircular rings in the two groups of clamps 82 on the drive shaft 4 and the support shaft 7, and then fixes the two semicircular rings by bolts. When the drive shaft 4 rotates, the support shaft 7 is driven to rotate by the fixing rod 81, thereby completing the conversion of the blade surface 62 on the tool 6.

[0045] Reference Figure 1The grinding unit 2 in this embodiment includes a three-axis moving frame 21, a driving motor 22, and a grinding wheel 23. The three-axis moving frame 21 includes an X-axis moving frame 211, a Y-axis moving frame 212, and a Z-axis moving frame 213. The X-axis moving frame 211, the Y-axis moving frame 212, and the Z-axis moving frame 213 use a servo motor 13 to drive the screw to rotate and drive another moving frame to move to achieve sliding in one direction. The X-axis moving frame 211 is set on the machine tool platform, the Y-axis moving frame 212 is set on the X-axis moving frame 211, and the Z-axis moving frame 213 is set on the On the Y-axis moving frame 212, the driving motor 22 is fixedly arranged on the sliding component on the Z-axis moving frame 213, so that the driving motor 22 can make three-dimensional movement in space, and the output shaft of the driving motor 22 is inclined to the horizontal direction, and the grinding wheel 23 is coaxially fixed on the output shaft of the driving motor 22. The end of the grinding wheel 23 in this embodiment away from the driving motor 22 is a concave frustum surface, and the side facing the driving motor 22 is a convex frustum surface, so that the thickness of the grinding wheel 23 gradually decreases from the center to the edge, which is convenient for the grinding wheel 23 to be inserted into the tool groove 61.

[0046] Reference Figure 6 , Figure 7 A grinding surface 231 is provided on the grinding wheel 23, and the grinding surface 231 is arranged along the edge of the grinding wheel 23. When the grinding surface 231 is ground, the grinding surface 231 and the blade surface 62 are ground in a line contact manner, and the generatrix where the grinding surface 231 contacts the blade surface 62 is set as the grinding generatrix 232, and the grinding generatrix 232 is arranged along the vertical direction.

[0047] Reference Figure 8 The included angle α between the grinding generatrix 232 and the end surface of the grinding wheel 23 away from the driving motor 22 is 12°.

[0048] When grinding the tool 6, the three-axis moving frame 21 drives the grinding surface 231 on the grinding wheel 23 to contact the blade surface 62. The grinding surface 231 is vertically arranged and in line contact with the blade surface 62, so that the grinding surface 231 and the blade surface 62 are more closely fitted, and the uniformity of the grinding of the blade surface 62 by the grinding surface 231 is improved. Then, the grinding wheel 23 is driven to rotate by the driving motor 22, and the three-axis moving frame 21 drives the rotating grinding surface 231 to grind the blade surface 62, thereby ensuring the accuracy and stability of the grinding of the blade surface 62 of the tool 6. The angle between the generatrix of the grinding surface 231 and the end face of the grinding wheel 23 is set to 12°, so that the wear of the grinding wheel 23 is minimized.

[0049] Reference Figure 1 , Figure 5A grinding block 9 is fixedly provided on the rotating support 11, and the grinding block 9 is made of diamond material. A tip 91 is provided on one end of the grinding block 9 facing the three-axis moving frame 21, and the axis of the tip 91 is vertically arranged to the grinding generatrix 232. The three-axis moving frame 21 drives the grinding wheel 23 to the grinding block 9 and fits with the tip 91. As the grinding surface 231 grinds the blade surface 62, the grinding surface 231 will produce uneven loss, and then the three-axis moving frame 21 drives the grinding wheel 23 to move to the tip 91 of the grinding block 9 and abut it, and then the driving motor 22 drives the grinding wheel 23 to rotate, and the grinding surface 231 is polished and leveled by the grinding block 9, which can improve the grinding effect of the grinding surface 231 on the blade surface 62.

[0050] The implementation principle of a tool grinding machine tool in an embodiment of the present application is as follows: when installing the tool 6, the operator sets the tool 6 on the support shaft 7 and fixes it, then places the support shaft 7 horizontally between the drive shaft 4 and the push rod 31, and aligns the tip 72 with the slot 71, then drives the tip 72 to be inserted into the slot 71 by rotating the push rod 31, and tightens it, then fixes the clamp 82 to the drive shaft 4 and the support shaft 7 respectively, and then positions the tool 6 through the positioning unit 5 so that the blade surface 62 at the top of the tool 6 is in a vertical state, and then the three-axis moving frame 21 drives the grinding wheel 23 to move so that the grinding surface 231 is in contact with the blade surface 62 and is ground, after the grinding is completed, the servo motor 13 drives the tool 6 to rotate, and then the tool 6 is positioned again through the positioning unit 5, and the grinding wheel 23 grinds the blade surface 62, and this process is repeated to complete the grinding of the blade surface 62 of the entire tool 6. When the tool 6 is ground, the two clamps 82 are removed, and then the tip 72 is moved out of the slot 71 by rotating the push rod 31 in the opposite direction, thereby completing the disassembly of the support shaft 7. Compared with the traditional method in which both ends of the support shaft 7 are fixed by couplings, the present application scheme only needs to fix one end of the support shaft 7, thereby saving the time for installation and disassembly of the support shaft 7 and improving the grinding efficiency of the machine tool for the tool 6.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool grinding machine, comprising a support shaft (7) passing through a tool (6), characterized in that: The invention also comprises a machine tool platform (1) and a grinding unit (2) arranged on the machine tool platform (1), wherein the grinding unit (2) is used for grinding the blade surface (62) of the tool (6), and a driving shaft (4) for driving the support shaft (7) to rotate is rotatably arranged on the machine tool platform (1), and a sliding clamping unit (3) is arranged on the machine tool platform (1), and the sliding clamping unit (3) is arranged corresponding to the driving shaft (4) and is suitable for pushing the support shaft (7) to abut against the support shaft (7), and slots (71) are arranged at both ends of the support shaft (7), and tips (72) are arranged on the sliding clamping unit (3) and the driving shaft (4), and the tips (72) can be inserted into the slots (71) so that the axes of the support shaft (7) and the driving shaft (4) are in the same line, and the driving shaft (4) drives the support shaft (7) to rotate through a connecting member (8).

2. The tool grinding machine according to claim 1, characterized in that: The sliding clamping unit (3) comprises a push rod (31) rotatably arranged on the machine tool platform (1), the push rod (31) being threadedly connected to the machine tool platform (1), and the tip (72) being arranged at one end of the push rod (31) facing the drive shaft (4) and being coaxially arranged with the drive shaft (4).

3. The tool grinding machine according to claim 2, characterized in that: A rotating disk (32) is coaxially fixedly disposed on the top rod (31), and a rocker (33) is eccentrically disposed on the rotating disk (32).

4. The tool grinding machine according to claim 1, characterized in that: The connecting member (8) comprises a fixing rod (81) and two groups of clamps (82). The two groups of clamps (82) are respectively fixedly sleeved on the support shaft (7) and the drive shaft (4). The fixing rod (81) is fixedly connected to the two groups of clamps (82).

5. The tool grinding machine according to claim 1, characterized in that: The grinding unit (2) comprises a three-axis moving frame (21), a driving motor (22), and a grinding wheel (23); the three-axis moving frame (21) is arranged on the machine tool platform (1); the driving motor (22) is arranged on the three-axis moving frame (21); the grinding wheel (23) is coaxially fixed on the output shaft of the driving motor (22); the three-axis moving frame (21) is used to drive the grinding wheel (23) to move in space; and a grinding surface (231) for grinding a blade surface (62) is provided on the end surface of the grinding wheel (23).

6. The tool grinding machine according to claim 5, characterized in that: The grinding surface (231) and the blade surface (62) are in line contact, and the contacting generatrix is ​​set as the grinding generatrix (232), and the grinding generatrix (232) is arranged along the vertical direction.

7. The tool grinding machine according to claim 6, characterized in that: The included angle α between the generatrix of the grinding surface (231) and the end surface of the grinding wheel (23) is 12°.

8. The tool grinding machine according to claim 5, characterized in that: A grinding block (9) is provided on the machine tool platform, and the grinding block (9) is used to grind and smooth the grinding surface (231).

9. The tool grinding machine according to claim 1, characterized in that: The support shaft (7) is provided with a retaining ring (73) and a fixing nut (74); the cutter (6) is located between the retaining ring (73) and the fixing nut (74); and the fixing nut (74) can tightly fix the cutter (6) on the retaining ring (73).

10. The tool grinding machine according to claim 1, characterized in that: An elastic pad (75) is provided between the tool (6) and the support shaft (7), and the elastic pad (75) can be tightly pressed against the tool (6) and the support shaft (7).

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