Automatic tooth opening machine for cutter

Abstract

The utility model provides an automatic tooth opening machine for a cutter, which comprises a workbench, a grinding wheel, a motor, a blade fixing device and a control device, the blade fixing device comprises a blade fixing seat and a pushing mechanism, the blade fixing seat is rotatably connected onto the workbench, and the pushing mechanism is used for pushing the blade fixing seat to rotate. The pushing mechanism can push the blade fixing base to rotate to drive the blade to abut against or be separated from the grinding wheel. The control device is used for controlling the motor and the pushing mechanism to work. According to the tooth opening machine, automatic tooth opening processing operation of the cutter is achieved, labor cost can be reduced, and operation is convenient and safe.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool processing equipment technology, and in particular to an automatic cutting tool threading machine. Background Technology

[0002] A toothed cutter, also known as a serrated cutter, has teeth on its cutting edge. Generally, the teeth of a toothed cutter need to be processed using a tooth-cutting machine.

[0003] The existing automatic cutting tool threading machine includes a worktable, a grinding wheel mounted on the worktable, a motor, and a blade holder movably connected to the worktable. In use, the blade to be threaded is first installed and fixed in the blade holder. Then, the motor is turned on to drive the grinding wheel to rotate. The blade holder is then manually pushed to bring the blade into contact with the grinding wheel, where the grinding teeth on the grinding wheel grind the blade to perform the threading process. After threading, the blade holder is manually pushed to disengage the blade from the grinding wheel, and finally, the blade is removed from the blade holder, completing the threading operation.

[0004] However, existing cutting tools still have shortcomings. The cutting process is operated by manually pushing the blade holder, which increases labor costs. In addition, the blade holder is close to the grinding wheel during the cutting process. If the blade holder is pushed manually, it is easy to be accidentally injured by the grinding wheel. The operation is inconvenient and has low safety. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an automatic cutting tool opening machine. The cutting tool holder of this machine can automatically rotate to drive the cutting tool to abut against the grinding wheel without manual operation, thereby reducing labor costs and making it convenient and safe to operate.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: an automatic cutting tool opening machine, including a worktable, a grinding wheel rotatably connected to the worktable, a motor for driving the grinding wheel to rotate, a blade fixing device, and a control device. The blade fixing device is located behind the grinding wheel and includes a blade fixing seat rotatably connected to the worktable for fixing the blade, and a pushing mechanism for pushing the blade fixing seat to rotate. The front end of the pushing mechanism is rotatably connected to the blade fixing seat, and the rear end of the pushing mechanism is rotatably connected to the worktable. The pushing mechanism can push the blade fixing seat to rotate, thereby causing the blade to abut against and disengage from the grinding wheel. The control device is used to control the operation of the motor and the pushing mechanism.

[0007] In the above solution, a pushing mechanism is installed on the worktable, and the control device operates the pushing mechanism to rotate the blade holder, causing the blade to abut against and disengage from the grinding wheel. This achieves the automatic rotation function of the blade holder, eliminating the need for manual operation of the blade holder's rotation, making operation convenient and safe. In use, the blade holder is initially located away from the grinding wheel, allowing the worker to easily install and secure the blade to be toothed. Then, the control device is activated, causing the pushing mechanism to rotate the blade holder forward, causing the blade to abut against the grinding wheel. The grinding teeth on the grinding wheel surface grind the blade, performing the toothing process. After the toothing is complete, the control device operates the pushing mechanism to rotate the blade holder backward, moving the blade away from the grinding wheel. At this point, the worker can remove the blade from the blade holder, completing the toothing process.

[0008] Furthermore, the aforementioned pushing mechanism includes a cylinder and a push rod that extends and retracts relative to the cylinder. The front end of the push rod is rotatably connected to the blade holder, and the rear end of the cylinder is rotatably connected to the worktable. The aforementioned control device controls the cylinder to drive the push rod to extend and retract via a pneumatic system. Specifically, when the push rod retracts, it causes the blade holder to rotate backward, moving the blade away from the grinding wheel. Conversely, when the push rod extends, it pushes the blade holder to rotate forward, moving the blade closer to the grinding wheel.

[0009] Furthermore, the aforementioned worktable also includes a first slide block that slides back and forth on the worktable, a first lead screw that is rotatably connected to the worktable, and a first turntable connected to the outer end of the first lead screw. The first lead screw can be easily rotated via the first turntable, and the first slide block can slide back and forth relative to the worktable. A first connecting block is provided under the first slide block, and the first lead screw is threadedly connected to the first connecting block. Rotating the first lead screw will drive the first connecting block to move back and forth along the first lead screw, and the movement of the first connecting block will drive the first slide block to move. The blade holder and the cylinder are rotatably connected to the first slide block, thus allowing the front and rear positions of the blade holder to be adjusted.

[0010] Furthermore, the first slide block is provided with two lugs facing each other, and the blade fixing seat is rotatably connected to the two lugs through the first rotating shaft. This makes the rotation of the blade fixing seat more stable. The first slide block is provided with a support seat, and the rear end of the cylinder is rotatably connected to the support seat, which improves the installation stability of the cylinder.

[0011] Furthermore, the aforementioned worktable also includes a second slide block that slides left and right on the worktable, a second lead screw that is rotatably connected to the worktable, and a second turntable connected to the outer end of the second lead screw. The second lead screw can be easily rotated via the second turntable. The aforementioned first slide block slides back and forth on the upper position of the second slide block. The first lead screw is rotatably connected to the second slide block. A second connecting block is provided under the second slide block. The second lead screw and the second connecting block are threadedly connected. Rotating the second lead screw will drive the second connecting block to move left and right along the second lead screw. While the second connecting block moves left and right, it will drive the second slide block to move. While the second slide block moves left and right, it will also drive the first slide block to move. This allows adjustment of the left and right position of the blade holder.

[0012] Furthermore, the aforementioned worktable also includes a third slide block that slides vertically behind the worktable. The second slide block slides horizontally onto the third slide block. A second lead screw is rotatably connected to the third slide block. A boss is provided behind the worktable, and the boss is threadedly connected to the third lead screw. Rotating the third lead screw causes it to move up and down along the boss. The lower end of the third lead screw is connected to a third turntable, and the upper end of the third lead screw abuts against the bottom of the third slide block. In use, rotating the third turntable will drive the third lead screw to rotate, and the rotation of the third lead screw will cause it to move up and down along the boss. Since the upper end of the third lead screw abuts against the bottom of the third slide block, the vertical movement of the third lead screw will push the third slide block to slide up and down relative to the back of the worktable. As the third slide block slides, it will also drive the second slide block, the first slide block, and the blade holder located on the third slide block to move, thus adjusting the vertical position of the blade holder.

[0013] Furthermore, the aforementioned third slide block is provided with sliders on its left and right outer sides, and guide blocks are provided on the back of the worktable corresponding to the outer positions of the two sliders. The two sliders slide up and down with the guide blocks on their respective sides, which can improve the sliding stability of the third slide block. The aforementioned sliders have guide grooves extending through their front and rear side walls along their sliding direction. A second adjusting screw passes through the guide groove and is threaded to the worktable. Tightening the second adjusting screw will cause its nut to abut against the front of the slider, thus fixing the slider with the nut of the second adjusting screw. At this time, rotating the third lead screw will not cause the third slide block to slide up and down. However, when the second adjusting screw is loosened, rotating the third lead screw will cause the third slide block to slide.

[0014] Furthermore, the aforementioned blade holder includes a base plate and a fixing plate disposed on the front of the base plate. Two side blocks are positioned opposite each other on the front of the fixing plate, and a lower block is positioned between the two side blocks. A slot is formed on the upper side of the lower block. In use, the blade is inserted into the slot, with its left and right ends abutting against the side blocks respectively, thus securing the blade. The fixing plate and lower block prevent the blade from moving forward, backward, or downward, while the side blocks prevent the blade from moving left or right, ensuring the blade's stable fixation. Pulling the blade upwards allows for easy removal and assembly.

[0015] Furthermore, the aforementioned blade holder also includes a sliding plate that slides vertically in front of the substrate. A fixing plate is positioned in front of the sliding plate. Sliding the sliding plate adjusts the vertical position of the fixing plate. The sliding plate has a groove extending through its front and rear sidewalls along its sliding direction. A first adjusting screw passes through the groove and is threaded into the substrate. Tightening the first adjusting screw causes its nut to abut against the front of the sliding plate, thus fixing the sliding plate and preventing it from sliding naturally. Loosening the first adjusting screw allows the sliding plate to be slid to adjust the vertical position of the fixing plate.

[0016] Furthermore, a water spraying device and a water-retaining cover are installed on the workbench above the grinding wheel. The water spraying device is located inside the water-retaining cover. During use, when the grinding wheel is grinding the blades, activating the water spraying device will spray water onto the grinding wheel and blades to cool them and reduce dust. The water-retaining cover prevents the water sprayed by the water spraying device from splashing everywhere. The workbench is equipped with a drain outlet so that the water sprayed by the water spraying device can be drained through the drain outlet for recycling.

[0017] The blade fixing seat of this utility model's cutting tool threading machine can automatically rotate to drive the blade to abut against the grinding wheel. During operation, only manual installation of the blade onto the blade fixing seat is required, and the control device can automatically operate the cutting process, realizing automated cutting operation, reducing labor costs, and providing convenient and safe operation. Furthermore, the front-to-back, left-to-right, and up-and-down positions of the blade fixing device can be adjusted, making operation more flexible. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first orientation of the automatic cutting tool opener according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the second position of the automatic cutting tool opener according to an embodiment of the present utility model (the structure of the water-blocking cover is omitted in the figure).

[0020] Figure 3This is a schematic diagram of the assembly structure of the blade fixing device and the first slide, second slide and third slide of the automatic cutting machine according to an embodiment of the present invention.

[0021] Figure 4 This is an exploded structural diagram of the blade fixing device, first slide, second slide, and third slide of the automatic cutting tool opener according to an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the blade holder of the automatic cutting machine according to an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the third-position structure of the automatic cutting tool opener according to an embodiment of the present invention. Detailed Implementation

[0024] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0025] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0027] Example 1

[0028] like Figure 1 , 2As shown, this embodiment provides an automatic cutting tool opening machine, including a worktable 1, a grinding wheel 11 rotatably connected to the worktable 1, a motor 2 for driving the grinding wheel 11 to rotate, a blade fixing device 3, a water spraying device located on the worktable 1 above the grinding wheel 11, and a control device 9. Two supports 14 are arranged opposite each other on the worktable 1, and a second rotating shaft 141 is rotatably connected between the two supports 14. The motor 2 is fixed to the outside of the right-side support 14, and the rotating shaft of the motor 2 is connected to the second rotating shaft 141. The grinding wheel 11 is fitted onto the outside of the second rotating shaft 141. When the motor 2 is turned on, it drives the second rotating shaft 141 to rotate the grinding wheel 11.

[0029] The aforementioned blade fixing device 3 includes a blade fixing seat 3 rotatably connected to the worktable 1 for fixing the blade, and a pushing mechanism for pushing the blade fixing seat 3 to rotate. The pushing mechanism includes a cylinder 41 and a push rod 42 that extends and retracts relative to the cylinder 41. The front end of the push rod 42 is rotatably connected to the rear side of the blade fixing seat 3, and the rear end of the cylinder 41 is rotatably connected to the worktable 1. The push rod 42 can push the blade fixing seat 3 to rotate, thereby causing the blade to abut against and disengage from the grinding wheel 11. The control device 9 is used to control the operation of the motor 2 and the cylinder 41.

[0030] In this embodiment, when the tooth-opening machine is in use, the push rod 42 is first in a retracted state, which drives the blade holder 3 to rotate away from the grinding wheel 11. This makes it convenient for the worker to install the blade to be opened onto the blade holder 3 for fixation. After the worker installs the blade onto the blade holder 3, the control device 9 is turned on. The control device 9 will operate the motor 2 to drive the grinding wheel 11 to rotate, and at the same time operate the cylinder 41 to drive the push rod 42 to extend, so as to push the blade holder 3 to rotate forward and drive the blade to abut against the grinding wheel 11. Thus, the grinding teeth on the surface of the grinding wheel 11 grind the blade to perform the tooth-opening process. After the tooth-opening process is completed, the control device 9 will operate the cylinder 41 to drive the push rod 42 to retract, so as to drive the blade holder 3 to rotate backward and make the blade move away from the grinding wheel 11. At this time, the worker can then take the blade out of the blade holder 3, thus completing the tooth-opening process of the blade.

[0031] The thread-cutting machine in this embodiment has a cylinder 41 and a push rod 42 that extends and retracts relative to the cylinder on the worktable 1. The control device 9 controls the cylinder 41 to drive the push rod 42 to extend and retract. When the push rod 42 retracts, it drives the blade holder 3 to rotate backward, moving the blade away from the grinding wheel 11. When the push rod 42 extends, it pushes the blade holder 3 to rotate forward, moving the blade closer to the grinding wheel 11. This realizes the automatic rotation function of the blade holder 3, eliminating the need for manual operation of the blade holder 3 and achieving automated thread-cutting operation. The operation is convenient and safe, reducing labor costs.

[0032] Example 2

[0033] This embodiment is a further improvement on the structure of the automatic threading machine for cutting tools in Embodiment 1. The improvement lies in that, as Figure 1 , 3 As shown in Figure 4, the aforementioned worktable 1 further includes a first slide block 51 that slides back and forth on the worktable 1, a first lead screw 52 rotatably connected to the worktable 1, and a first turntable 521 connected to the outer end of the first lead screw 52. The first slide block 51 can slide back and forth relative to the worktable 1. A first connecting block 511 is provided under the first slide block 51. The first lead screw 52 is threadedly connected to the first connecting block 51. The blade fixing seat 3 and the cylinder 41 are rotatably connected to the first slide block 51. In use, rotating the first turntable 521 will drive the first lead screw 52 to rotate. While the first lead screw 52 rotates, it will drive the first connecting block 511 to move back and forth along the first lead screw 52. While the first connecting block 52 moves, it will drive the first slide block 51 and the blade fixing seat 3 to move. It is equivalent to adjusting the back and forth position of the blade fixing seat 3 by rotating the first turntable 521.

[0034] Specifically, such as Figure 3 , 5 As shown, the aforementioned blade holder 3 includes a base plate 31 and a fixing plate 33 disposed in front of the base plate 31. Two side blocks 331 are disposed opposite each other on the front of the fixing plate 33, and a lower block 332 is disposed on the front of the fixing plate 33 between the two side blocks 331. A slot 3320 is formed on the upper side of the lower block 332. In use, as... Figure 5 As shown, insert the blade 91 into the slot 3320, with the left and right ends of the blade 91 abutting against the side stops 331 respectively, thus fixing the blade 91 in place. The fixing plate 33 and the lower stop 332 prevent the blade 91 from moving forward, backward, or downward, while the side stops 331 prevent the blade 91 from moving left or right, ensuring the blade 91 is securely fixed. Pulling the blade 91 upwards allows it to be removed, making disassembly and assembly convenient.

[0035] The aforementioned blade holder 3 also includes a sliding plate 32 that is slidably disposed on the front of the substrate 31. A fixing plate 33 is disposed on the upper front of the sliding plate 32. The sliding plate 32 can slide up and down relative to the substrate 31, thereby adjusting the vertical position of the fixing plate 33 by sliding the sliding plate 32. The sliding plate 3 has a groove 321 extending through its front and rear sidewalls along its sliding direction. A first adjusting screw 34 passes through the groove 321. The first adjusting screw 34 is threadedly connected to the substrate 31. Tightening the first adjusting screw 34 will cause its nut to abut against the front of the sliding plate 32, thereby fixing the sliding plate 32 by the nut of the first adjusting screw 34, preventing the sliding plate 32 from sliding up and down. Loosening the first adjusting screw 34 allows the sliding plate 32 to slide to adjust the vertical position of the fixing plate 33.

[0036] like Figure 3 , 4 As shown, the first slide block 51 has two lugs 512 facing each other, and a rotating shaft 513 is rotatably connected between the two lugs 512. A socket 5131 is provided in the middle of the rotating shaft 5131, and a plug 311 is provided at the lower end of the substrate 31. The plug 311 of the substrate 31 is inserted into the socket 5131 and fixed to the rotating shaft 513, ensuring the connection stability between the substrate 31 and the rotating shaft 5131. This allows the substrate 31 to rotate along the two lugs 512 via the first rotating shaft 513, thus making the rotation of the blade holder 3 more stable. The first slide block 51 has a support base 514, and the rear end of the cylinder 41 is rotatably connected to the support base 514, improving the installation stability of the cylinder 41.

[0037] As an improvement to this embodiment, for example... Figure 3 , 4 As shown, the worktable 1 further includes a second slide block 61 that slides left and right on the worktable 1, a second lead screw 62 rotatably connected to the worktable 1, and a second turntable 621 connected to the outer end of the second lead screw 62. The second slide block 61 can slide left and right relative to the worktable 1. The first slide block 51 slides back and forth on top of the second slide block 61. The first lead screw 52 is rotatably connected to the second slide block 61. Rotating the first lead screw 52 will cause the first slide block 51 to slide back and forth relative to the second slide block 61. The second slide block 61 is provided with a second connecting block (the structure of the second connecting block is not shown in the figure), and the second lead screw 62 is threadedly connected to the second connecting block. In use, rotating the second turntable 621 will drive the second lead screw 62 to rotate. The rotation of the second lead screw 62 will drive the second connecting block to move left and right along the second lead screw 62. While the second connecting block moves left and right, it will drive the second slide 61 to move. While the second slide 61 moves left and right, it will drive the first slide 51 and the blade fixing seat 3 to move. That is, the left and right position of the blade fixing seat 3 can be adjusted by rotating the second turntable 621.

[0038] Example 3

[0039] This embodiment is a further improvement on the structure of the automatic threading machine for cutting tools in Embodiment 2. The improvement is as follows: Figure 4 , 6As shown, the worktable 1 also includes a third slide block 81 that is slidably disposed behind the worktable 1. The second slide block 61 is slidably engaged with the third slide block 81. The second lead screw 62 is rotatably connected to the third slide block 81. Rotating the second lead screw 62 will cause the second slide block 61 to slide left and right relative to the third slide block 81. The worktable 1 has a boss 12 at the rear. The boss 12 is threadedly connected to the third lead screw 82. Rotating the third lead screw 82 will cause the third lead screw 82 to move up and down along the boss 12. The lower end of the third lead screw 82 is connected to a third turntable 821, and the upper end of the third lead screw 82 abuts against the bottom of the third slide block 81.

[0040] In use, rotating the third turntable 821 will drive the third lead screw 82 to rotate. The rotation of the third lead screw 82 will move up and down along the boss 12. The upper end of the third lead screw 82 abuts against the lower part of the third slide block 81, so that while the third lead screw 82 moves up and down, it will push the third slide block 81 to slide up and down relative to the worktable 1. While the third slide block 81 is sliding, it will drive the second slide block 61, the first slide block 51 and the blade fixing seat 3 located on the third slide block 81 to move. That is, the up and down position of the blade fixing seat 3 can be adjusted by rotating the third turntable 821.

[0041] Furthermore, the third slide block 81 is provided with sliders 811 on its left and right outer sides, and guide blocks 13 are provided on the back of the worktable 1 corresponding to the outer positions of the two sliders 811. The two sliders 811 slide up and down with the guide blocks 13 on their respective sides, which can improve the sliding stability of the third slide block 81. The sliders 811 are provided with guide grooves 8110 that penetrate their front and rear side walls along their sliding direction. A second adjusting screw 83 is inserted in the guide groove 8110. The second adjusting screw 83 is threaded to the back of the worktable 1. Tightening the second adjusting screw 83 will cause its nut to abut against the front of the slider 811, thus fixing the slider 811 with the nut of the second adjusting screw 83. At this time, rotating the third lead screw 82 will not drive the third slide block 81 to slide up and down. However, after loosening the second adjusting screw 83, rotating the third lead screw 82 will drive the third slide block 81 to slide up and down.

[0042] As an improvement to this embodiment, such as Figure 1 , 2 As shown, a water-blocking cover 7 is provided on the workbench 1 above the grinding wheel 11. A support rod 72 is provided on the support 14 located on the right side, and the water-blocking cover 7 is fixed to the support rod 72 to ensure the stability of the water-blocking cover 7. The water spraying device is located inside the water-blocking cover 7. By adding the water-blocking cover 7, the water sprayed by the water spraying device can be prevented from spraying everywhere. A drain outlet 10 is provided on the workbench 1 so that the water sprayed by the water spraying device can be discharged from the drain outlet 10 for recycling.

[0043] Specifically, the aforementioned water spraying device is a water pipe 71 inserted inside the water-blocking cover 7. The water pipe 71 has an inlet for connecting to a water source. The side wall of the section of the water pipe 71 inside the water-blocking cover 7 has multiple water outlets. A switch 711 is located near the inlet of the water pipe 7. In use, the inlet of the water pipe 71 is connected to the water source, and then the switch 711 is turned on. Water will flow into the water pipe 7 and spray out from the water outlets, thus spraying water on the grinding wheel 11 and the blade 91.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic cutting tool opening machine, comprising a worktable (1), a grinding wheel (11) rotatably connected to the worktable (1), a motor (2) for driving the grinding wheel (11) to rotate, a blade fixing device, and a control device (9), characterized in that: The blade fixing device is located behind the grinding wheel (11). The blade fixing device includes a blade fixing seat (3) rotatably connected to the worktable (1) for fixing the blade, and a pushing mechanism for pushing the blade fixing seat (3) to rotate. The front end of the pushing mechanism is rotatably connected to the blade fixing seat (3), and the rear end of the pushing mechanism is rotatably connected to the worktable (1). The pushing mechanism can push the blade fixing seat (3) to rotate, thereby causing the blade to abut against and disengage from the grinding wheel (11). The control device (9) is used to control the operation of the motor (2) and the pushing mechanism.

2. The automatic cutting tool opening machine according to claim 1, characterized in that: The pushing mechanism includes a cylinder (41) and a push rod (42) that extends and retracts relative to the cylinder (41). The front end of the push rod (42) is rotatably connected to the blade fixing seat (3), and the rear end of the cylinder (41) is rotatably connected to the worktable (1).

3. The automatic cutting tool opening machine according to claim 2, characterized in that: The workbench (1) further includes a first slide block (51) that slides back and forth on the workbench (1), a first lead screw (52) that is rotatably connected to the workbench (1), and a first turntable (521) connected to the outer end of the first lead screw (52). The first slide block (51) can slide back and forth relative to the workbench (1). A first connecting block (511) is provided under the first slide block (51). The first lead screw (52) is threadedly connected to the first connecting block (511). Rotating the first lead screw (52) will drive the first connecting block (511) to move back and forth along the first lead screw (52). The blade fixing seat (3) and the cylinder (41) are rotatably connected to the first slide block (51).

4. The automatic cutting tool opening machine according to claim 3, characterized in that: The first slide (51) has two lugs (512) facing each other. The blade fixing seat (3) is rotatably connected to the two lugs (512) through the first rotating shaft (513). The first slide (51) has a support seat (514) on it. The rear end of the cylinder (41) is rotatably connected to the support seat (514).

5. The automatic cutting tool opening machine according to claim 3 or 4, characterized in that: The workbench (1) further includes a second slide block (61) that slides left and right on the workbench (1), a second lead screw (62) that is rotatably connected to the workbench (1), and a second turntable (621) connected to the outer end of the second lead screw (62). The first slide block (51) slides back and forth on the upper position of the second slide block (61). The first lead screw (52) is rotatably connected to the second slide block (61). A second connecting block is provided under the second slide block (61). The second lead screw (62) is threadedly connected to the second connecting block. Rotating the second lead screw (62) will drive the second connecting block to move left and right along the second lead screw (62).

6. The automatic cutting tool opening machine according to claim 5, characterized in that: The workbench (1) further includes a third slide (81) that is slidably disposed behind the workbench (1). The second slide (61) is slidably fitted onto the third slide (81). The second lead screw (62) is rotatably connected to the third slide (81). A boss (12) is provided behind the workbench (1). The boss (12) is threadedly connected to the third lead screw (82). Rotating the third lead screw (82) will cause the third lead screw (82) to move up and down along the boss (12). The lower end of the third lead screw (82) is connected to a third turntable (821). The upper end of the third lead screw (82) abuts against the lower part of the third slide (81).

7. The automatic cutting tool opening machine according to claim 6, characterized in that: The third slide block (81) is provided with sliders (811) on the left and right outer sides respectively. The worktable (1) is provided with guide blocks (13) on the outer side of the two sliders (811) respectively. The two sliders (811) slide up and down with the guide blocks (13) on the corresponding side respectively. The slider (811) is provided with guide grooves (8110) that pass through its front and rear side walls along its sliding direction. The guide grooves (8110) are provided with second adjusting screws (83). The second adjusting screws (83) are threadedly connected to the worktable (1). Tightening the second adjusting screws (83) will cause its nut to abut against the front of the slider (811).

8. The automatic cutting tool opening machine according to claim 1, characterized in that: The blade holder (3) includes a base plate (31) and a fixing plate (33) disposed in front of the base plate (31). Two side blocks (331) are disposed opposite each other in front of the fixing plate (33), and a lower block (332) is disposed in front of the fixing plate (33) at a position between the two side blocks (331). A slot (3320) is opened on the upper side of the lower block (332).

9. The automatic cutting tool opening machine according to claim 8, characterized in that: The blade holder (3) further includes a slide plate (32) that is slidably disposed in front of the substrate (31). A fixing plate (33) is disposed in front of the slide plate (32). The slide plate (32) has a groove (321) that runs through its front and rear side walls along its sliding direction. A first adjusting screw (34) is inserted in the groove (321). The first adjusting screw (34) is threadedly connected to the substrate (31). Tightening the first adjusting screw (34) will cause its nut to abut against the front of the slide plate (32).

10. The automatic cutting tool opening machine according to claim 1, characterized in that: The workbench (1) is provided with a water spraying device and a water-blocking cover (7) above the grinding wheel (11). The water spraying device is located inside the water-blocking cover (7), and a water outlet (10) is provided on the workbench (1).

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