Electric grinder grinding head turn-over polishing equipment accurate in positioning

Abstract

The invention provides electric grinder grinding head turn-over polishing equipment accurate in positioning, and belongs to the technical field of electric angle grinder grinding head manufacturing. The polishing device solves the problem that special polishing equipment with good positioning performance and good coordination for the grinding head of the electric grinder urgently needs to be developed in the existing market. The full-automatic polishing machine comprises a rack, a rotary table component, a material taking component, a discharging component, a positioning detection component, a forward polishing component, a reverse polishing component and a face turning component, the rotary table component is provided with six stations, and the six stations are the feeding station, the forward polishing station, the face turning station, the reverse polishing station, the discharging station and the positioning station in sequence in the clockwise direction. Compared with the prior art, the polishing device has extremely high automation capacity and precision performance, and the front face and the back face of the grinding head can be automatically subjected to polishing operation with high connection performance and accurate positioning.

Description

Technical Field

[0001] The invention belongs to the technical field of electric angle grinder grinding head manufacturing, and relates to a precisely positioned electric grinder grinding head turning and polishing device. Background Art

[0002] An electric angle grinder is a handheld power tool used for grinding. Its end can be equipped with a variety of grinding heads, such as coarse grinding wheels, fine grinding wheels, polishing wheels, rubber wheels, cutting wheels, wire wheels, etc. These grinding heads are all characterized by being disc-shaped.

[0003] The disc-shaped grinding head must also be surface ground and polished before leaving the factory to remove burrs and make the upper and lower end surfaces of the grinding head neat and symmetrical. The grinding head with uniform and symmetrical materials on both end surfaces will have better coaxiality in a rotating working environment.

[0004] The disc-shaped grinding head can be used in the polishing process because only its upper and lower end surfaces need to be polished. Therefore, the following method can be used during the polishing process: first, clamp it for the first time, so that the upper end surface of the grinding head faces upward and the lower end surface faces downward, and then the polishing wheel of the polishing machine descends from the top to the upper end surface of the grinding head to complete the polishing of the upper end surface; then clamp it for the second time, turn the grinding head over so that the lower end surface faces upward and the upper end surface faces downward, and then the polishing wheel of the polishing machine descends from the top again to the lower end surface of the grinding head to complete the polishing of the upper end surface.

[0005] To achieve the above highly automated operation process, the implementation process can be refined. The first clamping uses a loading robot to transport the grinding head, the first polishing is done by a forward polishing machine, and the second clamping process after turning over is done by a turning robot, and the first polishing is done by a reverse polishing machine. After polishing, the grinding head is taken out by a unloading robot. Then, it is necessary to transport the grinding head position change equipment during the whole process, as well as the table for placing the grinding head during operation.

[0006] Therefore, the design process of the entire equipment is relatively complicated, requiring very precise positioning functions to be implemented, and the connectivity between various components must be good. Summary of the invention

[0007] The purpose of the present invention is to address the problem that there is an urgent need to develop a special polishing device for electric grinder grinding heads with good positioning and coordination in the existing market, and to propose a precisely positioned electric grinder grinding head flipping polishing device.

[0008] The purpose of the present invention can be achieved by the following technical solutions: A precisely positioned electric grinder grinding head flipping and polishing device, characterized in that it comprises a frame and a turntable component, a material picking component, a material unloading component, a positioning detection component, a positive polishing component, a reverse polishing component, and a flipping component arranged on the frame, the turntable component having 6 stations, which are in a clockwise direction a loading station, a positive polishing station, a flipping station, a reverse polishing station, a material unloading station, and a positioning station, and the material picking component, the material unloading component, the positioning detection component, the positive polishing component, the reverse polishing component, and the flipping component are respectively located at the loading station, the material unloading station, the positioning station, the positive polishing station, the reverse polishing station, and the flipping station.

[0009] In the above-mentioned electric grinder head flipping and polishing equipment with precise positioning, the positioning detection component includes a detection frame fixed relative to the frame, a detection truss arranged on the detection frame, a detection block slidable on the detection truss, and a detection hydraulic cylinder fixed on the detection block. The piston rod of the detection hydraulic cylinder is connected to the detection frame and drives the displacement of the detection block during the telescopic process. A plurality of laser probes are provided on the detection block. The laser probes are arranged downward and are used to detect whether the positioning station is accurately positioned.

[0010] In the above-mentioned precisely positioned electric grinder head flipping and polishing device, the flipping component includes a flipping frame fixed relative to the frame and a lifting platform set on the flipping frame by sliding up and down a slideway. A vertical groove is provided in the center of the flipping frame, the interior of the flipping frame is hollow and connected to the vertical groove, a concave cavity connected to the vertical groove is provided on the back of the lifting platform, a rotating rod is rotatably provided on the front of the lifting platform, a bayonet is provided on the outer end surface of the rotating rod, and two pairs of electromagnetic claws are provided on the bayonet. After the electromagnetic claws are energized, they have strong magnetism sufficient to adsorb the grinding head made of metal material from the bottom surface, and a gap is left between the two groups of electromagnetic claws. A limit sleeve is fixedly provided in the lifting platform, and the upper part of the middle section of the limit sleeve The half-axis part is formed by cutting off 180 degrees, and the rotating rod is rotatably arranged in the limiting shaft sleeve, and the rotating rod is fixed with an external key. The edges of both ends of the half-axis part are provided with key slots matching the size of the external key. A flip driving part is fixedly provided at a hollow high position inside the flip frame, and a flip wheel is fixedly provided on the output end of the flip driving part, and a flip wheel is fixedly provided on the rotating rod. When the rotating rod moves to the highest position along with the lifting platform, the flip wheel and the flipped wheel are fitted to transmit power. Each time they contact, the flip wheel rotates forward and reversely in turn, so that the flipped wheel brings the rotating rod to rotate forward and reversely, and the process of forward and reverse rotation ends until the external key flips from being embedded in the key slot on one side to being embedded in the key slot on the other side.

[0011] In the above-mentioned precisely positioned electric grinder grinding head flipping and polishing device, the outer key is made of heavy chemical material, so that the outer key can have a stable center of gravity when flipped to either side.

[0012] In the above-mentioned precisely positioned electric grinder head flipping and polishing device, the keyway length is greater than the external key so that the external key can move in the keyway but cannot detach, an adapter hole is provided at the inner end of the rotating rod, and a cylinder frame is provided for the vertical slot lifting and lowering movement of the flipping frame, on which a telescopic cylinder is fixed, and the piston rod of the telescopic cylinder is docked with the adapter hole.

[0013] In the above-mentioned precisely positioned electric grinder head flipping and polishing device, the material picking component includes a material picking rack fixedly arranged relative to the frame, a material picking truss arranged on the material picking rack, a material picking block slidable on the material picking truss, and a material picking suction plate arranged on the material picking block. A material picking hydraulic cylinder is fixedly arranged on the material picking rack, and the piston rod of the material picking hydraulic cylinder is connected to the material picking block to realize the displacement of the material picking block on the material picking truss. The material picking suction plate and the material picking block are provided with a material picking lifting drive cylinder. After being energized, the material picking suction plate has strong magnetism sufficient to adsorb the grinding head made of metal material.

[0014] In the above-mentioned precisely positioned electric grinder head flipping and polishing equipment, the unloading component includes a unloading rack fixedly arranged relative to the frame, a unloading truss arranged on the unloading rack, a unloading block slidable on the material picking truss, and a unloading suction plate arranged on the unloading block. A unloading hydraulic cylinder is fixedly arranged on the material picking rack, and the piston rod of the unloading hydraulic cylinder is connected to the unloading block to realize the displacement of the unloading block on the unloading truss. The unloading suction plate and the unloading block are provided with a unloading lifting drive cylinder. After the unloading suction plate is energized, it has strong magnetism sufficient to adsorb the grinding head made of metal material.

[0015] In the above-mentioned precisely positioned electric grinder grinding head flipping and polishing equipment, the turntable component includes a base with a cavity inside, a disc-shaped turntable arranged above the base and rotating through a central axis, and a switching drive member arranged in the cavity for providing rotation of the turntable; above the base are the above-mentioned 6 workstations, and 6 workstations for placing grinding heads are symmetrically arranged on the center of the turntable, and a main shaft is fixed to the bottom of each workstation and is rotatably connected to the turntable through the main shaft.

[0016] Compared with the existing technology, this flipping polishing equipment has extremely high automation capabilities and precision performance, and can automatically achieve polishing operations with high connectivity and precise positioning on both the front and back sides of the grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first structural schematic diagram of the flipping and polishing device; Figure 2 This is a second structural schematic diagram of the flipping and polishing device; Figure 3 is a first structural schematic diagram of the positional relationship between the rotating rod and the limiting sleeve; Figure 4 is a second structural schematic diagram of the positional relationship between the rotating rod and the limiting sleeve; Figure 5 It is a schematic diagram of the structure of the turntable components; Figure 6 It is a schematic diagram of the structure of the lower part of the turntable component hidden under the base; Figure 7 is a schematic diagram of the first structure of the turntable component after the middle bracket plate and the lower half are hidden; Figure 8 is a second structural schematic diagram of the turntable component after the middle bracket plate and the lower half are hidden; In the figure, 1, detection frame; 2, detection truss; 3, detection block; 4, laser probe; 5, flip frame; 6, slide; 7, lifting platform; 8, vertical slot; 9, rotating rod; 10, electromagnetic claw; 11, limit sleeve; 12, external key; 13, keyway; 14, flip wheel; 15, flipped wheel; 16, material taking block; 17, material taking suction plate; 18, unloading block; 19, unloading suction plate; 20, base; 21, turntable; 22, work station ; 23. Spindle; 24. Middle bracket plate; 25. Frame rail; 26. Frame block; 27. Drive shaft; 28. Drive wheel; 29. ​​Shaft wheel; 30. Upper rail; 31. Upper movable block; 32. Electromagnetic block; 33. Tension spring; 34. Connecting rod; 35. Lower seat; 36. Lower rail; 37. Lower movable block; 38. Output wheel; 39. Input wheel; 40. Belt; 41. Tension spring; 42. Guide rod; 43. Center shaft; 44. Upper seat. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 and Figure 2 As shown, the precisely positioned electric grinder grinding head flipping and polishing equipment is characterized by: comprising a frame and a turntable component, a material picking component, a unloading component, a positioning detection component, a positive polishing component (not shown in the figure), a reverse polishing component (not shown in the figure), and a flipping component arranged on the frame, the turntable component has 6 stations, which are the loading station, positive polishing station, flipping station, reverse polishing station, unloading station, and positioning station in clockwise direction, and the material picking component, unloading component, positioning detection component, positive polishing component, reverse polishing component, and flipping component are respectively located at the loading station, unloading station, positioning station, positive polishing station, reverse polishing station, and flipping station.

[0020] The positioning detection component includes a detection frame 1 fixed relative to the frame, a detection truss 2 arranged on the detection frame 1, a detection block 3 that can slide on the detection truss 2, and a detection hydraulic cylinder fixed on the detection block 3. The piston rod of the detection hydraulic cylinder is connected to the detection frame 1 and drives the displacement of the detection block 3 during the telescopic process. A multi-laser probe 4 is provided on the detection block 3. The laser probe 4 is set downward and is used to detect whether the positioning station is accurately positioned.

[0021] The detection process can be carried out in the following way. First, a mark can be set at a fixed position at each workstation of the turntable component where the workpiece is placed. In the working state (the working state means that each workstation of the turntable component where the workpiece is placed is accurately within the 6 workstations), the mark should be directly below the laser probe 4. Then, after each workstation switch, the laser probe 4 detects and collects the mark below. If the probe feedback normally collects the mark, it proves that the workpiece is completely in the workstation. If the probe feedback does not collect the mark or the collection degree is incomplete, it proves that the workpiece is offset. The laser detector can be connected to an external alarm. When the workpiece is offset, the alarm sends an alarm signal to allow technicians to correct the deviation. Therefore, under this design method, this device can achieve a very high-precision positioning function in each workstation switching process.

[0022] like Figure 3 and Figure 4 As shown, the turning component includes a turning frame 5 fixed relative to the frame and a lifting platform 7 set on the turning frame 5 by a slide 6. A vertical groove 8 is provided in the center of the turning frame 5. The interior of the turning frame 5 is hollow and connected to the vertical groove. A concave cavity connected to the vertical groove is provided on the back of the lifting platform 7. A rotating rod 9 is rotatably provided on the front of the lifting platform 7. A bayonet is provided on the outer end surface of the rotating rod 9. The bayonet is provided with two pairs of electromagnetic claws 10. After the electromagnetic claws 10 are energized, they have strong magnetism enough to absorb the grinding head made of metal material from the bottom surface. A gap is left between the two groups of electromagnetic claws 10. A limiting shaft sleeve 11 is fixedly provided in the lifting platform 7. The upper part of the middle section of the limiting shaft sleeve 11 is cut off 180 degrees to form a semi-axis part. The rotating rod 9 is rotatably provided. In the limiting shaft sleeve 11, an external key 12 is fixedly provided on the rotating rod 9, and key grooves 13 matching the size of the external key 12 are opened on the edges of both ends of the semi-axis part. A turning drive member (not shown in the figure) is fixedly provided at a high position of the inner hollow of the turning frame 5, and a turning wheel 14 is fixedly provided at the output end of the turning drive member, and a turned wheel 15 is fixedly provided on the rotating rod 9. When the rotating rod 9 moves to the highest position along with the lifting platform 7, the turning wheel 14 and the turned wheel 15 fit together to transmit power. Each time they contact, the turning wheel 14 rotates forward and reverse in turn, so that the turned wheel 15 and the rotating rod 9 rotate forward and reverse, and the process of forward and reverse rotation ends until the external key 12 flips from being embedded in the key groove 13 on one side to being embedded in the key groove 13 on the other side.

[0023] The flipping drive is usually realized by connecting a motor with forward and reverse rotation capabilities to a transmission, and the external key 12 and the keyway 13 exist as a limit to the 180-degree flipping.

[0024] The outer key 12 is made of a heavy material so that the outer key 12 can have a stable center of gravity when flipped to either side.

[0025] As long as the rotating rod 9 is turned over so that the outer key 12 is embedded in the keyway 13 on either side, the high weight of the rotating rod 9 itself will cause the entire rotating rod 9 to self-lock in a selected direction, thereby improving stability.

[0026] The length of the key slot 13 is greater than that of the external key 12 so that the external key 12 can move in the key slot 13 but cannot be separated. A transfer hole is provided at the inner end of the rotating rod 9. A cylinder frame (not shown in the figure) is provided for the vertical slot lifting and lowering movement of the flip frame 5. A telescopic cylinder (not shown in the figure) is fixed on the cylinder frame, and the piston rod of the telescopic cylinder is docked with the transfer hole.

[0027] Such a design enables the rotating rod 9 to be able to telescope within the limiting sleeve 11, that is, the grinding head is no longer limited to the displacement function of rising or falling in this case, but also has the ability to telescope back and forth, providing an activity option. This function will be useful when the equipment needs to add other processing techniques, such as turning over, and an additional process of visual inspection of the front and back sides of the grinding head needs to be performed, and the position of the grinding head needs to be changed.

[0028] The material picking component includes a material picking rack fixed relative to the frame, a material picking truss arranged on the material picking rack, a material picking block 16 that can slide on the material picking truss, and a material picking suction plate 17 arranged on the material picking block 16. A material picking hydraulic cylinder is fixed on the material picking rack, and the piston rod of the material picking hydraulic cylinder is connected to the material picking block 16 to realize the displacement of the material picking block 16 on the material picking truss. The material picking suction plate 17 and the material picking block 16 are provided with a material picking lifting drive cylinder. After being energized, the material picking suction plate 17 has strong magnetism sufficient to adsorb the grinding head made of metal material.

[0029] The unloading components include an unloading rack fixed relative to the frame, an unloading truss arranged on the unloading rack, an unloading block 18 that can slide on the material-retrieving truss, and an unloading suction plate 19 arranged on the unloading block. A unloading hydraulic cylinder is fixedly arranged on the material-retrieving rack, and the piston rod of the unloading hydraulic cylinder is connected to the unloading block to realize the displacement of the unloading block on the unloading truss. The unloading suction plate 19 and the unloading block 18 are provided with an unloading lifting drive cylinder. After being energized, the unloading suction plate 19 has strong magnetism sufficient to adsorb the grinding head made of metal material.

[0030] like Figures 5 to 8As shown, the turntable component includes a base 20 with a cavity inside, a disc-shaped turntable 21 rotatably arranged above the base 20 through a central axis 43, and a switching drive member arranged in the cavity for providing rotation of the turntable 21; above the base 20 are the above-mentioned 6 workstations, and 6 workstations 22 for placing grinding heads are symmetrically arranged on the center of the turntable 21, and a main shaft 23 is fixed to the bottom of each workstation and is rotatably connected to the turntable 21 through the main shaft 23.

[0031] The switching drive is generally realized by controlling the motor and the transmission to ensure that the output end of the switching drive can output 1 / 6 of a circle of rotation in a single operation, that is, to switch the rotation angle of a work station.

[0032] The positive polishing part and the reverse polishing part generally can realize the function by using a polishing wheel that can be raised and lowered. In order to increase the polishing surface, the polishing wheel can be arranged horizontally. Because it is a conventional part, it is not shown in the view of the present invention.

[0033] A middle bracket plate 24 is provided at the middle height of the cavity of the base 20, and a fixed-point driving component for driving the main shaft 23 in the positive polishing station and the reverse polishing station to rotate is provided in the cavity of the base 20. The fixed-point driving component includes a frame rail 25 fixedly arranged laterally in the base 20, two sets of frame blocks 26 slidingly symmetrically arranged on the slide rail and having axial holes in the vertical direction, and two freely rotatable driving shafts 27 arranged in the axial holes of the two frame blocks 26. The top fixed sleeve of the driving shaft 27 is provided with a driving wheel 28, and the bottom fixed sleeve of the main shaft 23 is provided with an axle wheel 29 coplanar with the driving wheel 28. When the main shaft 23 rotates to the positive polishing station and the reverse polishing station along with the turntable 21, the axle wheel 29 at this location is in contact with the driving wheel 28, and a power component is provided at the bottom end of the driving shaft 27.

[0034] An upper rail 30 is longitudinally fixed above the middle bracket plate 24, an upper movable block 31 is slidably provided on the upper rail 30, an upper seat 44 and an electromagnetic block 32 with strong magnetism after power is turned on are also provided on the middle bracket plate 24, the electromagnetic block 32 is located between the upper rail 30 and the central axis 43, the upper rail 30 is located between the upper seat 44 and the electromagnetic block 32, the upper movable block 31 is made of magnetic material, the start and stop switch of the electromagnetic block 32 is synchronized with the start and stop switch of the switching drive member, a tightening spring 33 is provided between the upper seat 44 and the upper movable block 31, and the tightening spring 33 makes The upper movable block 31 has a tendency to be pulled toward the upper seat 44 when not subject to external force. The adsorption force of the electromagnetic block 32 on the upper movable block 31 when it is energized is greater than the traction force of the tightening spring 33 on the upper movable block 31. A first hinge shaft is provided on the frame block 26, and a second hinge shaft is provided on the upper movable block 31. The two first hinge shafts on the two frame blocks 26 are connected to the second hinge shafts through two groups of symmetrical connecting rods 34. After the upper movable block 31 approaches the upper seat 44, the two connecting rods 34 push the two frame blocks 26 to separate from each other until the driving wheel 28 and the shaft wheel 29 are tightly fitted.

[0035] Because the start / stop switch of the electromagnetic block 32 is synchronized with the start / stop switch of the switching drive, and because the adsorption force of the electromagnetic block 32 on the upper movable block 31 when it is energized is greater than the traction force of the tightening spring 33 on the upper movable block 31, when the center shaft 43 rotates 1 / 6 of a circle to switch one work position, the electromagnetic block 32 will be energized to generate strong magnetism as soon as the switching drive is started, and then the upper movable block 31 will be adsorbed to the electromagnetic block 32 once. Under the pulling action of the connecting rods 34 on both sides, the two frame blocks 26 will move closer to each other, that is, the driving wheel 28 above the driving shaft 27 in the frame block 26 will retract inward and no longer fit with the shaft wheel 29 here, but maintain a larger distance, so that the shaft wheel 29 here will not be interfered with by the driving wheel 28 during the rotation of the turntable 21.

[0036] The power component includes a lower seat 35 and a lower rail 36 fixed to the bottom surface of the middle bracket plate 24, and a lower movable block 37 slidably arranged on the lower rail 36. The lower rail 36 is arranged longitudinally. A power motor is arranged in the lower seat 35. The output end fixed sleeve of the power motor is provided with an output wheel 38. The bottom end fixed sleeve of the driving shaft 27 is provided with an input wheel 39 in the same plane as the output wheel 38. A belt 40 is tightened between the input wheel 39 and the output wheel 38 of the two driving shafts 27. A tightening spring 41 is provided between the lower seat 35 and the lower movable block 37. The tightening spring 41 pushes the lower movable block 37 in the direction away from the lower seat 35 until the belt 40 is tightened.

[0037] A guide rod 42 is vertically arranged in the middle of the work station, and the upper end of the guide rod 42 has an oblique rounded corner.

[0038] A docking hole is generally provided in the center of the disc-shaped grinding head, through which the grinding head can be fixed to the output shaft of the electric grinder. If the size of the guide rod 42 is set to be consistent with the docking hole, then when the docking hole of the grinding head is inserted into the guide rod 42, the grinding head can be directly loosened, and the grinding head will automatically fall and stick to the workstation when it is sleeved on the top of the guide rod 42. In addition, because the polishing wheel of the polishing equipment needs to polish the surface of the grinding head, friction will be generated during the contact between the polishing wheel and the surface of the grinding head. If the grinding head is not fixed, the grinding head will deviate or even fly out under the action of friction. At this time, the guide rod 42 can limit the grinding head.

[0039] In addition, the gap formed by the two pairs of electromagnetic claws 10 can also pass through the guide rod 42, and then the electromagnetic claws 10 will not hit the guide rod 42 when passing through the guide rod 42 due to the existence of the gap during the process of the electromagnetic claws 10 retracting with the rotating rod 9. Because the two pairs of electromagnetic claws 10 adsorb the grinding head from the bottom surface, when the electromagnetic claws 10 are turned 180 degrees, the original grinding head will be turned from the bottom surface of the electromagnetic claws 10 to the top surface, so the grinding head on the top surface cannot be removed after the electromagnetic claws 10 lose their strong magnetism after being powered off. Therefore, the two pairs of electromagnetic claws 10 can first move the grinding head down to the center hole of the grinding head and pass through the guide rod 42, so that the surrounding directions of the grinding head are restricted by the guide rod 42, and then the two pairs of electromagnetic claws 10 are removed from the bottom of the grinding head after the power is turned off, and the grinding head will fall onto the workstation along the guide rod 42.

[0040] An electromagnetic plate with strong magnetism when powered on is provided on the bottom of the workstation.

[0041] Considering that most grinding heads are made of metal, the strong magnetism formed when the electromagnetic plate is energized can firmly adsorb the grinding head, so that the grinding head can be fixed on the workbench.

[0042] The various types of rotating connections and sliding connections mentioned above are all restrictive descriptions. Rotating connections are interpreted as two components being able to rotate relative to each other, but are limited to rotation. Any other movement cannot be performed under other unmentioned but existing restrictive structures. Therefore, two objects that can rotate relative to each other cannot perform any other movement except the kinematic pairs that exist in the direction of rotation. The same is true for sliding movement.

[0043] It should be understood that in the claims and description of the present invention, all "including..." should be understood as an open-ended meaning, that is, its meaning is equivalent to "at least contains...", and should not be understood as a closed meaning, that is, its meaning should not be understood as "only includes...".

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A precisely positioned electric grinder head turning and polishing device, characterized in that: It includes a frame and a turntable component, a material picking component, a material unloading component, a positioning detection component, a positive polishing component, a reverse polishing component, and a flipping component arranged on the frame. The turntable component has 6 workstations, which are the loading station, positive polishing station, flipping station, reverse polishing station, unloading station, and positioning station in clockwise direction. The material picking component, the material unloading component, the positioning detection component, the positive polishing component, the reverse polishing component, and the flipping component are respectively located at the loading station, unloading station, positioning station, positive polishing station, reverse polishing station, and flipping station.

2. The precise positioning electric grinder head turning and polishing device according to claim 1 is characterized in that: The positioning detection component includes a detection frame fixed relative to the frame, a detection truss arranged on the detection frame, a detection block that can slide on the detection truss, and a detection hydraulic cylinder fixed on the detection block. The piston rod of the detection hydraulic cylinder is connected to the detection frame and drives the displacement of the detection block during the telescopic process. Multiple laser probes are provided on the detection block. The laser probes are set downward and are used to detect whether the positioning station is accurately positioned.

3. The precise positioning electric grinder head turning and polishing device according to claim 2, characterized in that: The flipping component comprises a flipping frame fixed relative to the frame and a lifting platform arranged on the flipping frame by sliding up and down a slideway. A vertical slot is provided in the center of the flipping frame. The interior of the flipping frame is hollow and connected to the vertical slot. A concave cavity connected to the vertical slot is provided on the back of the lifting platform. A rotating rod is provided on the front of the lifting platform for rotation. A bayonet is provided on the outer end surface of the rotating rod. The bayonet is provided with two pairs of electromagnetic claws. After the electromagnetic claws are energized, they have strong magnetism enough to adsorb the grinding head made of metal material from the bottom surface. A gap is left between the two sets of electromagnetic claws. A limit sleeve is fixedly provided in the lifting platform. The upper part of the middle section of the limit sleeve is cut off 180 degrees to form a semi-axis portion. The rotating rod is rotatably arranged in a limiting shaft sleeve, an external key is fixedly provided on the rotating rod, and key slots matching the size of the external key are opened on the edges of both ends of the half-shaft part; a turning drive member is fixedly provided at a high position of the inner hollow of the turning frame, a turning wheel is fixedly provided on the output end of the turning drive member, and a turned wheel is fixedly provided on the rotating rod. When the rotating rod moves to the highest position along with the lifting platform, the turning wheel and the turned wheel are fitted to transmit power, and each time they contact, the turning wheel rotates forward and reversely in turn, so that the turned wheel brings the rotating rod to rotate forward and reversely, and the process of forward and reverse rotation ends until the external key flips from being embedded in the key slot on one side to being embedded in the key slot on the other side.

4. The precise positioning electric grinder head turning and polishing device according to claim 3 is characterized in that: The outer key is made of a heavy material, so that the outer key can have a stable center of gravity when it is flipped to any side.

5. The precise positioning electric grinder head turning and polishing device according to claim 3 or 4, characterized in that: The length of the keyway is greater than that of the external key so that the external key can move in the keyway but cannot be detached. A transfer hole is provided at the inner end of the rotating rod. A cylinder frame is provided for the lifting and lowering movement of the vertical slot of the flip frame. A telescopic cylinder is fixed on the cylinder frame, and the piston rod of the telescopic cylinder is connected to the transfer hole.

6. The precise positioning electric grinder head turning and polishing device according to claim 1, characterized in that: The material picking component includes a material picking rack fixed relative to the frame, a material picking truss arranged on the material picking rack, a material picking block that can slide on the material picking truss, and a material picking suction plate arranged on the material picking block. A material picking hydraulic cylinder is fixed on the material picking rack, and the piston rod of the material picking hydraulic cylinder is connected to the material picking block to realize the displacement of the material picking block on the material picking truss. The material picking suction plate and the material picking block are provided with a material picking lifting drive cylinder. After being energized, the material picking suction plate has strong magnetism sufficient to adsorb the grinding head made of metal material.

7. The precise positioning electric grinder head turning and polishing device according to claim 1, characterized in that: The unloading component includes a unloading rack fixed relative to the frame, a unloading truss arranged on the unloading rack, a unloading block that can slide on the material picking truss, and a unloading suction plate arranged on the unloading block. A unloading hydraulic cylinder is fixedly arranged on the material picking rack, and the piston rod of the unloading hydraulic cylinder is connected to the unloading block to realize the displacement of the unloading block on the unloading truss. The unloading suction plate and the unloading block are provided with a unloading lifting drive cylinder. After the unloading suction plate is energized, it has strong magnetism sufficient to adsorb the grinding head made of metal material.

8. The precise positioning electric grinder head turning and polishing device according to claim 1, characterized in that: The turntable component includes a base with a cavity inside, a disc-shaped turntable arranged above the base and rotating through a central axis, and a switching drive member arranged in the cavity for providing rotation of the turntable; above the base are the above-mentioned 6 workstations, and 6 workstations for placing grinding heads are symmetrically arranged on the center of the turntable, and a main shaft is fixed to the bottom of each workstation and is rotatably connected to the turntable through the main shaft.

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