One-key replacement grinding wheel type grinding device for PCD turning tool grinding and its usage method

Abstract

The present invention discloses a one-key replacement grinding wheel type grinding device for PCD turning tools and its use method, which includes a grinding machine and an electric spindle arranged at the transmission end of the grinding machine. Loading mechanisms capable of fixing and disassembling grinding wheels are arranged on the upper surface of the grinding machine housing and the electric spindle. A handling and replacement mechanism capable of picking up and taking the grinding wheel is arranged at the transportation end on the upper surface of the grinding machine housing; the replacement mechanism includes a guide rod arranged at the transportation end on the upper surface of the grinding machine housing. A slider capable of reciprocating along the direction of the guide rod is arranged on the mobile end of the surface of the guide rod. Through the mutual cooperation of the guide rod, the slider and the moving rod, multi-directional movement is realized, so that the whole can pick up and install the grinding wheels at multiple positions. The whole process is mechanically operated, reducing the occurrence of human damage problems, and there will be no problem of picking up the wrong grinding wheel model resulting in grinding failure. The whole can be widely applied to the grinding of PCD turning tools.

Description

Technical Field

[0001] The present invention relates to a one - key replacement grinding wheel type grinding device for PCD turning tools and its usage method. Background Art

[0002] The manufacturing process of PCD turning tools mainly includes two stages: 1. Manufacturing of PCD composite sheets: PCD composite sheets are sintered from natural or synthetic diamond powders and binders (containing metals such as cobalt and nickel) at a certain ratio under high temperature (1000 - 2000 °C) and high pressure (50,000 - 100,000 atmospheres). During the sintering process, due to the addition of the binder, binding bridges mainly composed of TiC, SiC, Fe, Co, Ni, etc. are formed between diamond crystals, and diamond crystals are embedded in the framework of the binding bridges in the form of covalent bonds. Usually, the composite sheets are made into discs with fixed diameters and thicknesses, and the sintered composite sheets also need to be ground, polished, and other corresponding physical and chemical treatments. ② Processing of PCD blades: The processing of PCD blades mainly includes steps such as cutting of composite sheets, welding of blades, and blade grinding.

[0003] And a crucial link in the grinding of the blade edge, especially during grinding, requires step - by - step grinding with multiple groups of grinding sheets with different precisions. Thus, it is necessary to replace the grinding sheets multiple times for grinding. However, when replacing the grinding sheets, it needs to be manually replaced by workers, with relatively low overall replacement efficiency, and it is prone to human - caused damage during replacement. Therefore, there is an urgent need for a grinding device that can automatically replace the grinding wheel. Summary of the Invention

[0004] The purpose of the present invention is to provide a one - key replacement grinding wheel type grinding device for PCD turning tools and its usage method to solve the problems raised in the above - mentioned background art.

[0005] To solve the above - mentioned technical problems, the present invention provides the following technical solutions: It includes a grinding machine and an electric spindle arranged at the transmission end of the grinding machine. Loading mechanisms capable of fixing and disassembling the grinding wheel are respectively arranged on the upper surface of the grinding machine housing and the electric spindle. A handling and replacement mechanism capable of picking up the grinding wheel is arranged at the transportation end on the upper surface of the grinding machine housing;

[0006] The replacement mechanism includes a guide rod arranged at the transportation end on the upper surface of the grinding machine housing. A slider capable of reciprocating along the direction of the guide rod is arranged on the surface of the guide rod. A moving rod capable of reciprocating horizontally along the slider is arranged at the transportation end of the slider surface;

[0007] A placement disc, an installation disc, and a handling disc capable of fixing and disassembling the grinding wheel are respectively arranged at the placement end on the upper surface of the grinding machine housing, the power output end of the electric spindle, and the moving end of the moving rod;

[0008] On the surfaces of the placement disk, the installation disk, and the handling disk, multiple groups of locking blocks capable of moving relatively or towards each other are arranged in a circumferential array at the fixed and detachable ends.

[0009] Preferably, pressing lockers are provided at the inner bottoms of the placement disk, the installation disk, and the handling disk. A cross is provided at the pressing end of the pressing locker, and a pressing rod is provided on the upper surface of the cross.

[0010] Preferably, lower frustum blocks are arranged in a circumferential array on the upper surface of the control end of the cross. An upper frustum groove is provided on the upper surface of the lower frustum block. An extrusion block is arranged at the lower one-third position inside the locking block, and an inclined plane block is arranged at the upper one-third position inside the locking block. The lower frustum block is arranged between two extrusion blocks, and the upper frustum groove wraps around the surfaces of two inclined plane blocks.

[0011] Preferably, a bracket is provided at the position corresponding to the electric spindle on the upper surface of the grinding machine housing. The placement disks are arranged on the bracket in a linear array.

[0012] Preferably, a first servo motor is provided at the inner bottom end of the guide rod. A lead screw is provided at the power output end of the first servo motor, and the slider is arranged on the surface of the lead screw.

[0013] Preferably, a second servo motor is provided at the transmission end inside the slider. A toothed block is provided at the power output end of the second servo motor. A rack is provided on the surface of the moving rod corresponding to the toothed block, and the rack and the toothed block mesh with each other.

[0014] Preferably, sensors are arranged in a linear array on the surface of the bracket corresponding to the guide rod, and an inductor is provided on the side of the handling disk away from the moving rod.

[0015] Preferably, the locking blocks on the placement disk and the installation disk are in the same positions, the locking blocks on the handling disk and the installation disk are staggered from each other, the contact surfaces between the lower frustum blocks and the extrusion blocks are smooth and flat, and the contact surfaces between the upper frustum grooves and the inclined plane blocks are smooth and flat.

[0016] Preferably, an electric push rod is provided on the moving rod, and the handling disk is arranged on the electric push rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. When the whole is in use, the grinding wheel is fixed and disassembled through the placement disk, the installation disk, and the handling disk. The overall operation is relatively convenient, the installation and disassembly time is short, and the overall production efficiency is increased;

[0019] 2. Through the mutual cooperation of the guide rod, slider and moving rod, multi-directional movement is achieved, enabling the whole device to pick up and install grinding wheels at multiple positions. The whole process is mechanically operated, reducing the occurrence of human damage problems and preventing the problem of grinding failure caused by incorrect selection of grinding wheel models. The whole device can be widely applied to the grinding of PCD turning tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the side view structure of an embodiment of the present invention;

[0022] Figure 3 Schematic diagram of the internal structure of the mounting disk of an embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the internal structure of the locking block of an embodiment of the present invention;

[0024] Figure 5 Schematic diagram of the internal structure of the guide rod of an embodiment of the present invention;

[0025] Figure 6 Schematic diagram of the internal structure of the slider and the surface structure of the moving rod of an embodiment of the present invention;

[0026] Figure 7 Schematic diagram of the grinding wheel structure of an embodiment of the present invention.

[0027] In the figure: 1, grinding machine; 2, electric spindle; 301, mounting disk; 302, bracket; 303, placing disk; 304, pressing lock; 305, cross; 306, lower round table block; 307, upper round table groove; 308, pressing rod; 309, handling disk; 310, locking block; 311, extrusion block; 312, inclined plane block; 401, guide rod; 402, lead screw; 403, first servo motor; 404, slider; 405, tooth block; 406, second servo motor; 407, moving rod; 408, rack; 5, sensor; 6, inductor; 7, electric push rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to facilitate the solution of the existing problem of manual grinding wheel replacement with certain safety risks, the present invention provides a one-key grinding wheel replacement type grinding wheel grinding device for PCD turning tools and its usage method. The following will clearly and completely describe the technical solutions in the present invention with reference to the drawings in the present invention. Obviously, the described invention is only a part of the invention of the present invention, not all of the inventions. All other inventions obtained by those of ordinary skill in the art based on the inventions in the present invention without creative efforts belong to the scope of protection of the present invention.

[0029] Please refer to Figures 1-7 For this invention, a one-key replacement grinding wheel type grinding device for PCD turning tools is provided, which includes a grinding machine 1 and an electric spindle 2 arranged at the transmission end of the grinding machine 1. Loading mechanisms capable of fixing and disassembling grinding wheels are provided on the upper surface of the housing of the grinding machine 1 and on the electric spindle 2, and a handling and replacement mechanism capable of picking up the grinding wheel is provided at the transportation end on the upper surface of the housing of the grinding machine 1;

[0030] The replacement mechanism includes a guide rod 401 arranged at the transportation end on the upper surface of the housing of the grinding machine 1. A slider 404 capable of reciprocating along the direction of the guide rod 401 is arranged on the surface of the guide rod 401 in the mobile end, and a moving rod 407 capable of reciprocating horizontally along the slider 404 is arranged at the transportation end on the surface of the slider 404;

[0031] Placing plates 303, mounting plates 301 and handling plates 309 capable of fixing and disassembling the grinding wheel are respectively arranged at the placing end on the upper surface of the housing of the grinding machine 1, the power output end of the electric spindle 2 and the mobile end of the moving rod 407;

[0032] A plurality of locking blocks 310 capable of moving relatively or towards each other are arranged in a circumferential array at the fixing and disassembling ends on the surfaces of the placing plate 303, the mounting plate 301 and the handling plate 309.

[0033] Specifically, pressing lockers 304 are arranged at the inner bottom ends of the placing plate 303, the mounting plate 301 and the handling plate 309. A cross 305 is arranged at the pressing end of the pressing locker 304, and a pressing rod 308 is arranged on the upper surface of the cross 305; By using the characteristic of pressing and locking by the pressing locker 304 and popping up and unlocking when pressing again, the cross 305 is driven to move up and down, and the outside can better press the pressing locker 304 through the pressing rod 308.

[0034] Specifically, lower frustum blocks 306 are arranged in a circumferential array at the control end on the upper surface of the cross 305. An upper frustum groove 307 is arranged on the upper surface of the lower frustum block 306. An extrusion block 311 is arranged at the lower one-third position inside the locking block 310, and an inclined plane block 312 is arranged at the upper one-third position inside the locking block 310. The lower frustum block 306 is arranged between two extrusion blocks 311 of the bracket 302, and the upper frustum groove 307 wraps around the surfaces of two inclined plane blocks 312; By the lower frustum 306 squeezing the extrusion blocks 311 on the locking block 310, the two locking blocks 310 are forced to move towards each other, and by the inner wall of the upper frustum groove 307 squeezing the inclined plane blocks 312, the two locking blocks 310 are driven to move towards each other.

[0035] Specifically, a bracket 302 is provided at a position corresponding to the electric spindle 2 on the upper surface of the housing of the grinding machine 1, and the placing disks 303 are arranged in a linear array on the bracket 302; the placing disks 303 are supported by the bracket 302.

[0036] Specifically, a first servo motor 403 is provided at the inner bottom end of the guide rod 401, a lead screw 402 is provided at the power output end of the first servo motor 403, and the slider 404 is arranged on the surface of the lead screw 402; the first servo motor 403 drives the lead screw 402 to rotate, so as to drive the slider 404 to reciprocate along the direction of the guide rod 401 under the action of the thread.

[0037] Specifically, a second servo motor 406 is provided at the transmission end inside the slider 404, a tooth block 405 is provided at the power output end of the second servo motor 406, a rack 408 is provided on the surface of the moving rod 407 corresponding to the tooth block 405, and the rack 408 and the tooth block 405 are meshed with each other; the second servo motor 406 drives the tooth block 405 to rotate, so as to drive the moving rod 407 on the surface of the rack 408 to move on the surface of the slider 404 under the action of meshing.

[0038] Specifically, sensors 5 are arranged in a linear array on the surface of the bracket 302 corresponding to the guide rod 401, and an inductor 6 is arranged on the side of the handling disk 309 away from the moving rod 407; the sensors 5 are used to label the grinding wheels at corresponding positions, and the inductor 6 is used to sense the numbers, so as to accurately select the grinding wheels of corresponding models.

[0039] Specifically, the locking blocks 310 on the placing disk 303 and the mounting disk 301 are in the same position, the locking blocks 310 on the handling disk 309 and the mounting disk 301 are staggered from each other, the contact surfaces between the lower frustum block 306 and the extrusion block 311 are smooth and flat, and the contact surfaces between the upper frustum groove 307 and the inclined plane block 312 are smooth and flat; since the locking blocks 310 on the placing disk 303 and the mounting disk 301 are in the same position, and the locking blocks 310 on the handling disk 309 and the mounting disk 301 are staggered from each other, their mounting positions are the same while the taking positions are different, so they will not be affected by the locking blocks 310 on the placing disk 303 and the mounting disk 301 when taking.

[0040] Specifically, an electric push rod 7 is arranged on the moving rod 407, and the handling disk 309 is arranged on the electric push rod 7; the electric push rod 7 drives the handling disk 309 to reciprocate.

[0041] A method for using a grinding wheel grinding device with one-key grinding wheel replacement for PCD turning tools includes the following steps:

[0042] Step A, the first step: Install the corresponding type of grinding wheel on the placement disks 303 except the first one 303 according to the type of grinding wheel required for the PCD turning tool to be ground. When installing, first press the pressing rod 308 to unlock the pressing lock 304. Under the action of the spring inside the pressing lock 304, the cross 305 on its surface is driven to move upward. At this time, the upper circular table groove 307 will squeeze the inclined plane block 312, so that under the action of the inclined plane extrusion, the two adjacent locking blocks 310 are driven to move relatively. Insert the fixing hole on the surface of the grinding wheel into the surface of the locking block 310, and press again to drive the lower circular table block 306 on the surface of the cross 305 to squeeze the extrusion block 311. Under the action of the inclined plane, the two adjacent locking blocks 310 are forced to move towards each other, so as to engage and lock the fixing hole on the surface of the grinding wheel. Repeat the above operation to install the corresponding type of grinding wheel on the mounting plate 301 and the placement disks 303;

[0043] Step B, the second step: Number the sensors 5 at the positions corresponding to the placement disks 303. The number of the first placement disk 303 without a grinding wheel installed is the same as the type of the grinding wheel already installed on the mounting plate 301, and the other sensors 5 are the same as the types of the grinding wheels on the placement disks 303 at their corresponding positions;

[0044] Step C, the third step: Install the PCD turning tool to be ground on the grinding machine 1 and start the electric spindle 2. The operator performs grinding on it;

[0045] Step D, the fourth step: When it is necessary to replace the grinding wheel, according to the number of the grinding wheel to be replaced, start the first servo motor 403. The first servo motor 403 drives the lead screw 402 on its surface to rotate, so as to drive the slider 404 to move downward until the handling plate 309 moves to the same horizontal plane position as the mounting plate 301. Start the second servo motor 406. The second servo motor 406 drives the tooth block 405 to rotate, so that under the action of meshing, the rack 408 is driven to move, and then the handling plate 309 is driven to move to the front of the mounting plate 301. Since the pressing lock on the handling plate 309 is in the unlocked state, adjust the electric spindle 2 to keep the grinding wheel in the initial installation state. Start the electric push rod 7. The electric push rod 7 drives the handling plate 309 to move, so that before the two pressing rods 308 come into contact, the locking blocks 310 on the handling plate 309 have been inserted into the fixing holes on the surface of the grinding wheel. With the extrusion, the locking blocks 310 on the handling plate 309 fix the grinding wheel, and the locking blocks 310 on the mounting plate 301 cancel the locking of the grinding wheel. Reverse the above operation to install the grinding wheel on the first placement disk 303;

[0046] Step E, Fifth step: Input the number of the grinding wheel to be replaced. The inductor 6 picks up the corresponding grinding wheel through the induction sensor 5 and installs it through the above operations to complete the replacement. When replacement is needed, pick up and replace the grinding wheel according to the number, and repeat the above operations.

[0047] A one-key grinding wheel replacement type grinding wheel grinding device for PCD turning tool grinding and its usage method according to the present invention have the following advantages:

[0048] 1. When in use as a whole, the grinding wheel is fixed and disassembled through the placement plate 303, the mounting plate 301 and the handling plate 309. The overall operation is relatively convenient, the installation and disassembly time is short, and the overall production efficiency is increased;

[0049] 2. Through the mutual cooperation of the guide rod 401, the slider 404 and the moving rod 407 as a whole, multi-directional movement is achieved, so that the whole can pick up and install the grinding wheels at multiple positions. The whole process is mechanically operated, reducing the occurrence of human damage problems, and there will be no problem of picking up the wrong grinding wheel model resulting in grinding failure. The whole can be widely applied to the grinding of PCD turning tools.

[0050] Although the inventions of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these inventions without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-key replacement grinding wheel type grinding device for PCD turning tools, characterized in that: It includes a grinding machine (1) and an electric spindle (2) arranged at the transmission end of the grinding machine (1). Loading mechanisms capable of fixing and disassembling grinding wheels are provided on the upper surface of the housing of the grinding machine (1) and on the electric spindle (2). A handling and replacement mechanism capable of picking up the grinding wheel is provided at the transportation end of the upper surface of the housing of the grinding machine (1). The replacement mechanism includes a guide rod (401) arranged at the transportation end of the upper surface of the housing of the grinding machine (1). A slider (404) capable of reciprocating along the direction of the guide rod (401) is arranged on the surface of the guide rod (401). A moving rod (407) capable of reciprocating horizontally along the slider (404) is arranged at the transportation end of the surface of the slider (404). Placement discs (303), mounting discs (301) and handling discs (309) capable of fixing and disassembling the grinding wheel are respectively arranged at the placement end of the upper surface of the housing of the grinding machine (1), the power output end of the electric spindle (2) and the moving end of the moving rod (407). Multiple groups of locking blocks (310) capable of moving relatively or facing each other are arranged in a circular array at the fixing and disassembling ends of the surfaces of the placement disc (303), the mounting disc (301) and the handling disc (309). Pressing lockers (304) are arranged at the inner bottom ends of the placement disc (303), the mounting disc (301) and the handling disc (309). A cross (305) is arranged at the pressing end of the pressing locker (304). A pressing rod (308) is arranged on the upper surface of the cross (305). Lower frustum blocks (306) are arranged in a circular array at the control end of the upper surface of the cross (305). Upper frustum grooves (307) are arranged on the upper surfaces of the lower frustum blocks (306). Extrusion blocks (311) are arranged at the lower one-third position inside the locking block (310). Inclined plane blocks (312) are arranged at the upper one-third position inside the locking block (310). The lower frustum block (306) is arranged between two extrusion blocks (311). The upper frustum groove (307) wraps around the surfaces of two inclined plane blocks (312).

2. The one-key replaceable grinding wheel type grinding device for PCD turning tools according to claim 1, characterized in that: A bracket (302) is arranged at the position corresponding to the electric spindle (2) on the upper surface of the housing of the grinding machine (1). The placement discs (303) are arranged in a linear array on the bracket (302).

3. The one-key replaceable grinding wheel type grinding device for PCD turning tools according to claim 2, wherein: A first servo motor (403) is arranged at the inner bottom end of the guide rod (401). A lead screw (402) is arranged at the power output end of the first servo motor (403). The slider (404) is arranged on the surface of the lead screw (402).

4. A one-key replaceable grinding wheel type grinding device for PCD turning tools according to claim 3, characterized in that: A second servo motor (406) is arranged at the transmission end inside the slider (404). A tooth block (405) is arranged at the power output end of the second servo motor (406). A rack (408) is arranged on the surface of the moving rod (407) corresponding to the tooth block (405). The rack (408) and the tooth block (405) are meshed with each other.

5. A one-key replaceable grinding wheel type grinding device for PCD turning tools according to claim 4, characterized in that: Sensors (5) are arranged in a linear array on the surface of the bracket (302) corresponding to the guide rod (401). An inductor (6) is arranged on the side of the handling disc (309) away from the moving rod (407).

6. The one-key replaceable grinding wheel type grinding device for PCD turning tools according to claim 5, characterized in that: The positions of the locking blocks (310) on the placing disc (303) and the mounting disc (301) are the same, and the positions of the locking blocks (310) on the handling disc (309) and the mounting disc (301) are offset from each other. The contacting surfaces between the lower frustum block (306) and the extrusion block (311) are smooth and flat, and the contacting surfaces between the upper frustum groove (307) and the inclined plane block (312) are smooth and flat.

7. The one-key replaceable grinding wheel type grinding wheel grinding device for PCD turning tools according to claim 6, characterized in that: An electric push rod (7) is arranged on the moving rod (407), and the handling disc (309) is arranged on the electric push rod (7).

8. The usage method of a one-key replaceable grinding wheel type grinding wheel grinding device for PCD turning tools according to claim 7, characterized in that: It includes the following steps: Step (A), the first step: Install grinding wheels of corresponding models on other placing discs (303) except the first placing disc (303) according to the grinding wheel models required for the PCD turning tool to be ground. When installing, first press the pressing rod (308) to unlock the pressing lock (304). Driven by the spring inside the pressing lock (304), the cross (305) on its surface moves upward. At this time, the upper frustum groove (307) will exert extrusion on the inclined plane block (312), so that the two adjacent locking blocks (310) move relatively under the action of the inclined plane extrusion. Insert the fixing hole on the surface of the grinding wheel into the surface of the locking block (310), and press again to drive the lower frustum block (306) on the surface of the cross (305) to exert extrusion on the extrusion block (311). Under the action of the inclined plane, the two adjacent locking blocks (310) are forced to move towards each other, so as to engage and lock the fixing hole on the surface of the grinding wheel. Repeat the above operations to install grinding wheels of corresponding models on the mounting disc (301) and the placing disc (303); Step (B), the second step: Number the sensors (5) at the positions corresponding to the placing discs (303). The number of the first placing disc (303) without a grinding wheel installed is the same as the grinding wheel model already installed on the mounting disc (301), and the other sensors (5) are the same as the grinding wheel models on the placing discs (303) at their corresponding positions; Step (C), the third step: Install the PCD turning tool to be ground on the grinding machine (1), start the electric spindle (2), and the operator performs grinding treatment on it; Step (D), the fourth step: When the grinding wheel needs to be replaced, start the first servo motor (403) according to the number of the grinding wheel to be replaced. The first servo motor (403) drives the lead screw (402) on its surface to rotate, thereby driving the slider (404) to move downward until the handling plate (309) moves to the same horizontal plane position as the mounting plate (301). Then start the second servo motor (406). The second servo motor (406) drives the tooth block (405) to rotate, and thus drives the rack (408) to move under the action of meshing, and further drives the handling plate (309) to move to the front of the mounting plate (301). Since the push-lock on the handling plate (309) is in the unlocked state, adjust the motorized spindle (2) to keep the grinding wheel in the initial installation state. Start the electric push rod (7). The electric push rod (7) drives the handling plate (309) to move. Thus, before the two push rods (308) come into contact, the locking block (310) on the handling plate (309) has been inserted into the fixing hole on the surface of the grinding wheel. With the extrusion, the locking block (310) on the handling plate (309) fixes the grinding wheel, and the locking block (310) on the mounting plate (301) cancels the locking of the grinding wheel. Reverse the above operations to install the grinding wheel on the first placing plate (303). Step (E), the fifth step: Input the number of the grinding wheel to be replaced. The inductor (6) picks up the corresponding grinding wheel through the induction sensor (5), and installs it through the above operations to complete the replacement. When replacement is needed, pick up and replace the grinding wheel according to the number, and repeat the above operations.

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