Alloy cutter cutting edge passivation treatment equipment

Abstract

The invention relates to the technical field of cutter passivation, and discloses alloy cutter cutting edge passivation treatment equipment which comprises a workbench, a rotating disc is rotationally installed on the workbench through a rotating column, a plurality of clamps used for clamping cutters are rotationally installed on the rotating disc, and the clamps are evenly distributed in the circumferential direction; a sliding seat is arranged on the workbench in a sliding mode, the distance between the sliding seat and the rotating disc is adjustable, and a passivation chamber is installed at the upper end of the sliding seat. The sliding seat with the adjustable distance and the passivation chamber are arranged on the workbench, the passivation chamber is arranged on the periphery of the alloy tool in a sleeving mode through the sleeve hole to form a closed sand blasting cavity, the upper end and the lower end of the passivation chamber are connected with the sand blasting pipe and the recycling pipe respectively, and abrasive materials enter from the sand blasting pipe during sand blasting, act on the tool and then are discharged through the recycling pipe, so that the abrasive materials are effectively prevented from splashing outwards; and meanwhile, abrasive materials are prevented from entering equipment, equipment faults are reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of tool passivation, in particular to an alloy tool edge passivation treatment device. Background Art

[0002] When processing alloy tools, the cutting edge of the alloy tools needs to be passivated. There are many passivation treatment methods, among which micro-sandblasting is a relatively common passivation process. By using high-pressure airflow to spray abrasive particles to the cutting edge, a uniform small arc is formed to achieve rapid passivation of the cutting edge. It is highly efficient and suitable for batch processing.

[0003] In tool manufacturing workshops, the sandblasting area is often filled with tools and equipment awaiting processing. Traditionally, tool edges are often exposed, and the sandblasting head is aimed directly at the tool. The abrasive is splashed everywhere by the high-pressure airflow. This splashed abrasive not only scatters onto workbenches and equipment surfaces but also permeates the air, degrading the air quality throughout the workshop. Long-term work in such an environment can easily lead to workers inhaling abrasive particles, damaging their respiratory systems and increasing their risk of occupational diseases.

[0004] Moreover, the workshop floor is littered with scattered abrasives, making cleaning difficult, time-consuming, and labor-intensive. Furthermore, due to the small size of the abrasive particles, some abrasives may enter the gaps, bearings, transmission components, and other internal structures of the equipment, potentially causing equipment failures. This increases equipment maintenance costs and downtime, and affects processing efficiency. Summary of the Invention

[0005] In order to solve the technical problems existing in the background technology, the present invention proposes an alloy tool edge passivation treatment device.

[0006] The present invention provides an alloy tool edge passivation treatment device, comprising a workbench, a turntable rotatably mounted on the workbench via a rotating column, a fixture for clamping the tool rotatably mounted on the turntable, and a plurality of fixtures uniformly distributed circumferentially.

[0007] A sliding seat is slidably provided on the workbench, and the distance between the sliding seat and the turntable is adjustable. A passivation chamber is installed on the upper end of the sliding seat. A sandblasting tube and a recovery tube are installed at the upper and lower ends of the passivation chamber respectively. The side of the passivation chamber has a sleeve hole connected to its inner cavity and opposite to the circumference of the turntable. The passivation chamber is movably sleeved on the periphery of the alloy tool through the sleeve hole to form a sandblasting chamber. A driving assembly for driving the tool on the fixture to rotate is installed on the passivation chamber.

[0008] The workbench is internally installed with a first driving mechanism for driving the rotating column to rotate and a second driving mechanism for driving the sliding seat to move horizontally, and the first driving mechanism and the second driving mechanism are in transmission cooperation;

[0009] Aiming at the problems existing in traditional tool sandblasting passivation, such as abrasive spattering and easy damage to equipment, this equipment has been specifically designed. Multiple circumferentially evenly distributed fixtures are installed on the turntable, which can clamp multiple tools at the same time to improve processing efficiency. The distance between the sliding seat and the turntable is adjustable, which is convenient for adjusting the relative position of the passivation chamber and the tool. The passivation chamber is sleeved on the periphery of the tool through a sleeve hole to form a closed sandblasting chamber. The sandblasting tube inputs abrasive and the recovery tube recovers the abrasive, which effectively avoids abrasive spattering, keeps the workshop clean, and reduces the risk of equipment failure. The drive component rotates the tool in the passivation chamber to ensure uniform passivation of all parts of the cutting edge. The first and second drive mechanisms work together to realize the automation of turntable rotation and sliding seat movement, thereby improving production efficiency.

[0010] As a further optimized solution of the present invention, the first drive mechanism includes a rotating shaft, a first gear, a second gear, and a third gear. The rotating shaft is rotatably mounted within the workbench and parallel to the rotating column and is driven by a motor. The first gear, the second gear, and the third gear are fixedly mounted on the rotating shaft, the rotating column, and the input end of the second drive mechanism, respectively.

[0011] The first gear is an incomplete gear and has first, second, and third gear teeth spaced apart on its outer circumference, with the first gear teeth disposed between the second and third gear teeth. When the shaft rotates continuously, the first gear teeth mesh with the second gear for transmission, and the second and third gear teeth mesh with the third gear in sequence for transmission.

[0012] The motor drives the shaft to rotate, driving the first gear to rotate. The first gear is an incomplete gear. Its unique gear tooth distribution makes it possible for the first gear teeth to first engage with the second gear during the rotation process, realizing the indexing rotation of the rotating column and the turntable. That is, each time it rotates one workstation, the next tool to be processed is sent to the passivation workstation. Subsequently, the second and third gear teeth engage with the third gear in turn, providing power for the second drive mechanism, controlling the movement of the sliding seat and the passivation chamber, realizing the coordinated operation of various components of the equipment, and ensuring the precise switching of tools between different workstations and the accurate movement of the passivation chamber.

[0013] As a further optimized solution of the present invention, the ratio of the number of teeth of the first gear to the number of teeth of the second gear is greater than one, and the number of teeth of the second gear is equal to that of the third gear and the ratio of the number of teeth of the second gear to the number of teeth of the third gear is less than one;

[0014] The ratio of the number of teeth of the first gear to the number of teeth of the second gear is greater than one, which means that when the rotating shaft rotates one circle, the rotating column and the turntable can rotate a certain angle to realize the tool station switching. The number of teeth of the second gear and the third gear is equal and the ratio of the number of teeth of the second gear to the number of teeth of the third gear is less than one, so that when the second gear and the third gear are respectively engaged with the third gear, the third gear can rotate multiple circles, and then the sliding seat is driven by the second driving mechanism to complete a complete horizontal movement, realizing the movement of the passivation chamber approaching and moving away from the tool, accurately controlling the installation and separation of the passivation chamber and the tool, coordinating with the tool station switching, and completing the automated passivation process.

[0015] As a further optimized solution of the present invention, the second driving mechanism includes a transmission shaft, a reciprocating screw, a bevel gear set, and a connecting rod. The transmission shaft is rotatably mounted in the workbench and is parallel to the rotating shaft. The third gear is fixedly sleeved on the upper end of the transmission shaft and meshed with the second gear. The reciprocating screw is rotatably mounted in the workbench and is horizontally arranged. The free end of the reciprocating screw is transmission-connected to the transmission shaft through the bevel gear set. A slider is threadedly sleeved on the reciprocating screw. One end of the connecting rod is mounted on the slider, and the other end of the connecting rod extends upward and is fixedly connected to the sliding seat.

[0016] When the third gear teeth are disengaged from the third gear, the passivation chamber is completely disengaged from the tool, completing a cycle.

[0017] In one cycle, the third gear meshes with the second gear to transmit power to the transmission shaft, and the transmission shaft drives the reciprocating screw to rotate through the bevel gear set, so that the slider makes a linear motion on the reciprocating screw. The movement of the slider is transmitted to the sliding seat through the connecting rod, driving the passivation chamber to move horizontally. When the first gear teeth mesh with the second gear, the tool position switching is realized. When the second gear teeth mesh with the third gear, the passivation chamber approaches and is mounted on the tool. When the third gear teeth mesh with the third gear, the passivation chamber is away from the tool. Through such a design, the equipment automatically completes a series of operations such as tool replacement, passivation chamber mounting, sandblasting passivation and disengagement during the process of one rotation of the shaft. Batch passivation of the tools can be achieved through continuous operation, which greatly improves production efficiency.

[0018] As a further optimized solution of the present invention, a slide groove is provided on the workbench, and the axis of the slide groove is perpendicular to the axis of the rotating column. The sliding seat is slidably arranged on the upper end surface of the workbench. A sliding block slidably arranged in the slide groove is installed at the bottom of the sliding seat. The upper end of the connecting rod extends into the slide groove and is fixedly connected to the sliding block.

[0019] The slide groove provides precise guidance for the movement of the sliding seat. The sliding block at the bottom of the sliding seat slides in the slide groove, limiting the movement trajectory of the sliding seat so that it can only move in a direction perpendicular to the axis of the rotating column. The connecting rod is fixedly connected to the sliding block, which stably transmits the linear motion of the slider to the sliding seat, ensuring the stability and accuracy of the passivation chamber during movement, ensuring that the passivation chamber can accurately cooperate with the tool, and improving the processing accuracy of the equipment.

[0020] As a further optimized solution of the present invention, the drive assembly includes a rotating wheel and an electric motor mounted on the outer wall of the passivation chamber, and the rotating wheel is mounted on the output end of the electric motor; the outer shape of the fixture is cylindrical, and the outer circumference of the cylinder is fixedly covered with an anti-slip sleeve. When the passivation chamber is completely covered on the tool through the sleeve hole, the outer circumference of the rotating wheel is made of rubber and contacts the anti-slip sleeve. The rotating wheel drives the anti-slip sleeve and the fixture to rotate, and the fixture drives the tool thereon to rotate in the passivation chamber for sandblasting passivation;

[0021] The electric motor drives the wheel to rotate. Since the outer surface of the wheel is made of rubber, it can generate a large friction force when it contacts the anti-slip sleeve on the outer periphery of the fixture. This friction force drives the anti-slip sleeve and the fixture to rotate, and then causes the tool to rotate in the passivation chamber. The rotation of the tool allows the abrasive to act evenly on all parts of the cutting edge, ensuring that uniform small arcs can be formed on all parts of the tool, improving the passivation quality of the tool and ensuring the stable performance of the tool during use.

[0022] Furthermore, the driving assembly includes a pushing mechanism mounted on the outer wall of the passivation chamber, an electric motor mounted on a movable end of the pushing mechanism, and a moving path of the movable end of the pushing mechanism is perpendicular to the axial direction of the electric motor, and the electric motor is driven by the pushing mechanism to drive the rotating wheel toward or away from the clamp;

[0023] The pushing mechanism is preferably an electric push rod. After the passivation chamber and the tool are assembled, the electric push rod pushes the electric motor and the rotary wheel to contact the anti-slip sleeve, so that the tool rotates for passivation. After the passivation is completed, the pushing mechanism can move the rotary wheel away from the fixture, which facilitates the subsequent separation of the passivation chamber and the tool. This design facilitates the operation and maintenance of the equipment, ensures that the tool can be accurately driven to rotate under different working conditions, and improves the practicality of the equipment.

[0024] As a further optimized solution of the present invention, the clamp includes a cylindrical housing rotatably mounted on the outer circumference of the turntable, the housing having an assembly hole communicating with the inner cavity of the turntable on a side away from the turntable, a plurality of clamping plates annularly symmetrically distributed along the axis of the housing being mounted inside the housing, and the clamping plates being fixed to the inner wall of the housing by springs, the shank of the tool being inserted into the assembly hole and being clamped and fixed by the plurality of clamping plates;

[0025] The assembly hole of the cylindrical shell is convenient for inserting the tool handle. Multiple clamps distributed symmetrically along the axis can automatically adapt to different tool handle sizes under the action of springs to firmly clamp the tool. This clamping method is not only simple and quick to operate, but also ensures the precise positioning of the tool in the fixture, avoiding tool deviation during the sandblasting process, thereby ensuring the accuracy and stability of the passivation process and improving the quality of tool passivation.

[0026] It should be noted that the sandblasting airflow is not sufficient to affect the clamping stability of the fixture.

[0027] As a further optimized solution of the present invention, a pipe joint connected to the outlet end of the sandblasting pipe is installed on the outer wall of the upper end of the passivation chamber, and uniformly distributed nozzles are installed on the inner wall of the upper end of the passivation chamber, and the nozzles are connected to the inner cavity of the pipe joint. The lower end of the passivation chamber has an inclined surface, and the bottom end of the inclined surface has a reflux port and is connected to the recovery pipe.

[0028] The pipe joint introduces the abrasive in the sandblasting tube into the passivation chamber. The evenly distributed nozzles ensure that the abrasive can be evenly sprayed onto the tool. The inclined surface and return port design at the lower end of the passivation chamber utilize gravity to allow the abrasive to smoothly gather at the return port after passivation and be discharged through the recovery pipe, thereby improving the recovery efficiency of the abrasive, reducing the abrasive residue in the equipment, keeping the interior of the equipment clean, and facilitating the long-term stable operation of the equipment.

[0029] Furthermore, multiple nozzles are divided into two parts. The nozzles in the first part are arranged linearly and opposite to the peripheral cutting edge of the tool, and the nozzles in the second part are set at an angle and opposite to the tip cutting edge of the tool. During the tool rotation sandblasting process, the actual sandblasting uniformity can be improved, thereby improving the passivation effect and passivation efficiency.

[0030] Furthermore, the side of the passivation chamber is equipped with balls evenly distributed along the circumference of the sleeve hole. When the passivation chamber is completely sleeved on the periphery of the tool, the balls are in rolling contact with the outer end surface of the fixture.

[0031] The ball plays a role of rolling friction between the passivation chamber and the fixture. During the rotation of the tool and the movement of the passivation chamber, the ball can effectively reduce the friction resistance between the two, reduce the wear of equipment components, reduce the wear and replacement frequency of parts, thereby reducing the maintenance cost of the equipment, improving the reliability and stability of the equipment, and ensuring the long-term stable operation of the equipment.

[0032] The alloy tool edge passivation treatment equipment proposed in the present invention has the following beneficial effects:

[0033] (1) This equipment is equipped with a sliding seat and a passivation chamber with adjustable distance on the workbench. The passivation chamber is sleeved around the alloy tool to form a closed sandblasting chamber. The upper and lower ends of the passivation chamber are connected to the sandblasting tube and the recovery tube respectively. During sandblasting, the abrasive enters from the sandblasting tube and is discharged through the recovery tube after acting on the tool, effectively avoiding the abrasive from splashing out, keeping the workshop environment clean, and preventing the abrasive from entering the equipment, reducing equipment failures and extending the service life of the equipment.

[0034] (2) The rotating shaft in the first driving mechanism is driven by a motor to drive the first gear to rotate. The first gear teeth are engaged with the second gear to realize the indexing rotation of the rotating column and the turntable, which is convenient for the switching of the tool on the passivation station. The second gear teeth and the third gear teeth are engaged with the third gear in turn, combined with the transmission shaft and the reciprocating screw to drive the sliding seat to move horizontally, so that the passivation chamber is close to and away from the tool, and the installation and disengagement actions are completed. Within one cycle, the equipment automatically completes a series of operations such as tool replacement, passivation chamber installation, sandblasting passivation and disengagement. Continuous operation can realize batch passivation of tools. Compared with traditional manual operation or simple equipment, it greatly improves production efficiency and meets the needs of large-scale production.

[0035] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a front cross-sectional structural diagram of the present invention;

[0037] Figure 2 It is a schematic diagram of the top view of the structure of the present invention in working state;

[0038] Figure 3 Schematic diagram of the internal structure of the passivation chamber of the present invention;

[0039] Figure 4 Schematic diagram of the top cross-sectional structure of the clamp of the present invention;

[0040] Figure 5 This is a schematic top view of the first gear, the second gear, and the third gear of the present invention.

[0041] Description of the drawings: 1. Workbench; 2. Rotating column; 3. Turntable; 4. Clamp; 5. Sliding seat; 6. Passivation chamber; 7. Sandblasting tube; 8. Recovery tube; 9. Rotating wheel; 10. Electric motor; 11. Pushing mechanism; 12. Rotating shaft; 13. First gear; 14. Second gear; 15. First gear tooth; 16. Transmission shaft; 17. Third gear; 18. Reciprocating screw; 19. Bevel gear set; 20. Connecting rod; 21. Pipe joint; 22. Nozzle; 23. Return port; 24. Ball; 25. Clamp; 26. Spring; 27. Anti-slip sleeve; 28. Second gear tooth; 29. ​​Third gear tooth; 30. Slide groove. DETAILED DESCRIPTION

[0042] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and are not to be construed as limiting the present invention.

[0043] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] In the field of tool passivation technology, the traditional sandblasting passivation method for alloy tools has many disadvantages, such as the difficulty in collecting abrasive sputtering and the easy impact on the workshop environment and equipment operation. The alloy tool edge passivation treatment equipment of the present invention has been innovatively designed to address these problems. The specific implementation method is as follows:

[0045] like Figure 1 and Figure 2 As shown, the equipment is based on a workbench 1 as the basic supporting structure. A turntable 3 is mounted on the workbench 1 via a rotating column 2. Multiple fixtures 4 for clamping tools are evenly distributed on the turntable 3. These fixtures 4 are distributed circumferentially, so that multiple tools can be clamped at the same time, providing conditions for batch processing.

[0046] A sliding seat 5 is also slidably provided on the workbench 1. The distance between the sliding seat 5 and the turntable 3 can be adjusted according to processing requirements. A passivation chamber 6 is installed on the upper end of the sliding seat 5. The upper and lower ends of the passivation chamber 6 are respectively connected to a sandblasting tube 7 and a recovery tube 8. The side of the passivation chamber 6 has a sleeve hole. When working, the sleeve hole is movably sleeved on the periphery of the alloy tool to form a closed sandblasting chamber, which effectively solves the problem of abrasive spattering.

[0047] like Figure 1 and Figure 5 As shown, the automated operation of the equipment relies on the coordinated work of the first drive mechanism and the second drive mechanism. The first drive mechanism includes a rotating shaft 12, a first gear 13, a second gear 14, and a third gear 17. The rotating shaft 12 is rotatably mounted inside the workbench 1 and driven by a motor. The first gear 13 is an incomplete gear with first gear teeth 15, second gear teeth 28, and third gear teeth 29 distributed on its periphery at intervals, wherein the first gear teeth 15 are located between the second gear teeth 28 and the third gear teeth 29. The first gear 13, the second gear 14, and the third gear 17 are fixedly mounted on the rotating shaft 12, the rotating column 2, and the input end of the second drive mechanism, respectively.

[0048] When the motor drives the rotating shaft 12 to rotate continuously, the first gear teeth 15 first mesh with the second gear 14. Since the gear ratio of the first gear teeth 15 to the second gear 14 is greater than one, when the rotating shaft 12 rotates one circle, the rotating column 2 and the turntable 3 will rotate a certain angle, realizing the switching of the tool on the passivation position and sending the next tool to be processed to the appropriate position. Then, the second gear teeth 28 and the third gear teeth 29 are meshed with the third gear 17 in turn for transmission. The second gear teeth 28 and the third gear teeth 29 have the same number of teeth and the gear ratio with the third gear 17 is less than one. This allows the third gear 17 to rotate multiple circles when the second gear teeth 28 and the third gear teeth 29 are respectively meshed with it, providing power for the second driving mechanism.

[0049] like Figure 1 As shown, the second driving mechanism consists of a transmission shaft 16, a reciprocating screw 18, a bevel gear set 19 and a connecting rod 20. The transmission shaft 16 is installed in parallel with the rotating shaft 12 in the workbench 1. The third gear 17 is fixedly sleeved on the upper end of the transmission shaft 16. The reciprocating screw 18 is horizontally arranged, and its free end is transmission-connected to the transmission shaft 16 through the bevel gear set 19. The reciprocating screw 18 is threadedly sleeved with a slider. One end of the connecting rod 20 is installed on the slider, and the other end extends upward and is fixedly connected to the sliding seat 5. When the third gear 17 rotates, the reciprocating screw 18 is driven to rotate through the transmission shaft 16 and the bevel gear set 19, so that the slider makes a linear motion on the reciprocating screw 18, and then drives the sliding seat 5 and the passivation chamber 6 to move horizontally through the connecting rod 20;

[0050] In one cycle, when the second gear teeth 28 are engaged with the third gear 17, the passivation chamber 6 approaches and is mounted on the tool; when the third gear teeth 29 are engaged with the third gear 17, the passivation chamber 6 is away from the tool, thereby completing the automated passivation process. Continuous operation can achieve batch passivation processing of the tool.

[0051] like Figure 2 As shown, in order to ensure the stable movement of the sliding seat 5, a slide groove 30 is opened on the workbench 1, and the axis of the slide groove 30 is perpendicular to the axis of the rotating column 2. A sliding block is installed at the bottom of the sliding seat 5, and the sliding block slides in the slide groove 30. The upper end of the connecting rod 20 extends into the slide groove 30 and is fixedly connected to the sliding block. The slide groove 30 provides a precise guide for the movement of the sliding seat 5, ensuring the stability and accuracy of the passivation chamber 6 during the movement, so that it can accurately cooperate with the tool.

[0052] like Figure 4 As shown, the fixture 4 adopts a special design, including a cylindrical shell rotatably mounted on the outer circumference of the turntable 3. The shell has an assembly hole on the side away from the turntable 3, and multiple clamps 25 are distributed symmetrically along the axis inside. The clamps 25 are fixed to the inner wall of the shell by springs 26. When clamping the tool, the tool handle is inserted into the assembly hole. Under the action of the spring 26, the multiple clamps 25 automatically adapt to the size of the tool handle and firmly clamp the tool to ensure that the tool will not deviate during the sandblasting process, thereby ensuring the accuracy and stability of the passivation treatment.

[0053] like Figure 2 As shown, in order to enable the tool to be sandblasted evenly in the passivation chamber, a drive assembly is installed on the passivation chamber 6, and the drive assembly includes a runner 9 and an electric motor 10 installed on the outer wall of the passivation chamber 6. The runner 9 is installed at the output end of the electric motor 10. The exterior of the fixture 4 is cylindrical, and the outer circumference is fixedly sleeved with an anti-slip sleeve 27. When the passivation chamber 6 is completely sleeved on the tool through the sleeve hole, the rubber outer circumference of the runner 9 contacts the anti-slip sleeve 27, and the electric motor 10 drives the runner 9 to rotate, and uses friction to drive the anti-slip sleeve 27 and the fixture 4 to rotate, thereby causing the tool to rotate in the passivation chamber 6, ensuring that the abrasive can evenly act on all parts of the tool edge, thereby improving the passivation quality;

[0054] In addition, the drive assembly is also provided with a pushing mechanism 11, which is preferably an electric push rod. The electric motor 10 is installed on the movable end of the pushing mechanism 11. The moving path of the movable end of the pushing mechanism 11 is perpendicular to the axial direction of the electric motor 10. After the passivation chamber and the tool are completed, the pushing mechanism 11 pushes the electric motor 10 and the rotary wheel 9 to contact the anti-slip sleeve 27, so that the tool rotates for passivation. After the passivation is completed, the pushing mechanism 11 can move the rotary wheel 9 away from the clamp 4, which facilitates the subsequent separation of the passivation chamber 6 and the tool, thereby improving the convenience and practicality of the equipment operation.

[0055] like Figure 3 As shown, a pipe joint 21 is installed on the outer wall of the upper end of the passivation chamber 6. The outlet end of the sandblasting tube 7 is connected to the pipe joint 21. The nozzles 22 are evenly distributed on the inner wall of the upper end of the passivation chamber 6. These nozzles 22 are connected to the inner cavity of the pipe joint 21. During operation, the abrasive enters the pipe joint 21 through the sandblasting tube 7 and is then evenly sprayed onto the tool through the nozzles 22.

[0056] To further improve the sandblasting effect, multiple nozzles are divided into two parts. The nozzles in the first part are arranged linearly, facing the peripheral cutting edge of the tool, and the nozzles in the second part are set at an angle, facing the cutting edge of the tool. During the tool rotation sandblasting process, this design can improve the actual sandblasting uniformity, thereby improving the passivation effect and efficiency.

[0057] Furthermore, the lower end of the passivation chamber 6 is designed as a slope, and a reflux port 23 is provided at the bottom of the slope. The reflux port 23 is connected to the recovery pipe 8. During the sandblasting process, the abrasive that has completed the passivation effect is gathered to the reflux port 23 along the slope under the action of gravity, and is discharged through the recovery pipe 8, thereby improving the recovery efficiency of the abrasive, reducing the residue of the abrasive in the equipment, keeping the interior of the equipment clean, and facilitating the long-term stable operation of the equipment.

[0058] like Figure 3 As shown, in order to reduce the friction resistance between the passivation chamber 6 and the fixture 4 and reduce the wear of the equipment components, balls 24 are evenly distributed on the side of the passivation chamber 6 along the circumference of the sleeve. When the passivation chamber 6 is completely sleeved on the periphery of the tool, the balls 24 are in rolling contact with the outer end surface of the fixture 4. During the rotation of the tool and the movement of the passivation chamber 6, the balls 24 play a role of rolling friction, effectively reducing the friction between the two, reducing the wear and replacement frequency of parts, reducing the maintenance cost of the equipment, and improving the reliability and stability of the equipment.

[0059] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An alloy tool edge passivation treatment device, comprising a workbench (1), characterized in that: A turntable (3) is rotatably mounted on the workbench (1) via a rotating column (2), and a fixture (4) for clamping a tool is rotatably mounted on the turntable (3), wherein the number of the fixtures (4) is multiple and uniformly distributed in the circumferential direction; A sliding seat (5) is slidably provided on the workbench (1), and the distance between the sliding seat (5) and the turntable (3) is adjustable. A passivation chamber (6) is installed on the upper end of the sliding seat (5), and a sandblasting tube (7) and a recovery tube (8) are installed at the upper and lower ends of the passivation chamber (6), respectively. The side of the passivation chamber (6) has a sleeve hole that is connected to its inner cavity and opposite to the peripheral surface of the turntable (3). The passivation chamber (6) is movably sleeved on the periphery of the alloy tool through the sleeve hole to form a sandblasting cavity. A driving component for driving the tool on the fixture (4) to rotate is installed on the passivation chamber (6); A first driving mechanism for driving the rotating column (2) to rotate and a second driving mechanism for driving the sliding seat (5) to move horizontally are installed inside the workbench (1), and the first driving mechanism and the second driving mechanism are in transmission coordination.

2. The alloy tool edge passivation treatment equipment according to claim 1, characterized in that: The first driving mechanism comprises a rotating shaft (12), a first gear (13), a second gear (14), and a third gear (17); the rotating shaft (12) is rotatably mounted in the workbench (1) and is parallel to the rotating column (2) and is driven by a motor; the first gear (13), the second gear (14), and the third gear (17) are fixedly mounted on the rotating shaft (12), the rotating column (2), and the input end of the second driving mechanism, respectively; The first gear (13) is an incomplete gear and has first gear teeth (15), second gear teeth (28) and third gear teeth (29) distributed at intervals on its outer periphery, and the first gear teeth (15) are arranged between the second gear teeth (28) and the third gear teeth (29); When the rotating shaft (12) rotates continuously, the first gear teeth (15) mesh with the second gear (14) for transmission, and the second gear teeth (28) and the third gear teeth (29) mesh with the third gear (17) for transmission in sequence.

3. The alloy tool edge passivation treatment equipment according to claim 2, characterized in that: The tooth number ratio of the first gear teeth (15) to the second gear teeth (14) is less than 1, and the second gear teeth (28) and the third gear teeth (29) have the same number of teeth and the tooth number ratio of the second gear teeth (28) to the third gear teeth (17) is less than 1.

4. The alloy tool edge passivation treatment equipment according to claim 2, characterized in that: The second driving mechanism comprises a transmission shaft (16), a reciprocating screw (18), a bevel gear set (19), and a connecting rod (20). The transmission shaft (16) is rotatably mounted in the workbench (1) and is parallel to the rotating shaft (12). The third gear (17) is fixedly mounted on the upper end of the transmission shaft (16) and can mesh with the second gear teeth (28) and the third gear teeth (29). The reciprocating screw (18) is rotatably mounted in the workbench (1) and is horizontally arranged. The free end of the reciprocating screw (18) is transmission-connected to the transmission shaft (16) through the bevel gear set (19). A slider is threadedly mounted on the reciprocating screw (18). One end of the connecting rod (20) is mounted on the slider. The other end of the connecting rod (20) extends upward and is fixedly connected to the sliding seat (5).

5. The alloy tool edge passivation treatment equipment according to claim 4, characterized in that: A slide groove (30) is provided on the workbench (1), and the axis of the slide groove (30) is perpendicular to the axis of the rotating column (2). The sliding seat (5) is slidably arranged on the upper end surface of the workbench (1). A sliding block slidably arranged in the slide groove (30) is installed at the bottom of the sliding seat (5). The upper end of the connecting rod (20) extends into the slide groove (30) and is fixedly connected to the sliding block.

6. The alloy tool edge passivation treatment equipment according to claim 1, characterized in that: The driving assembly comprises a rotating wheel (9) and an electric motor (10) mounted on the outer wall of the passivation chamber (6), and the rotating wheel (9) is mounted on the output end of the electric motor (10); The outer shape of the fixture (4) is cylindrical and the outer peripheral surface of the cylinder is fixedly covered with an anti-slip sleeve (27). When the passivation chamber (6) is completely covered on the tool through the sleeve hole, the outer peripheral surface of the rotating wheel (9) is made of rubber and contacts the anti-slip sleeve (27). The rotating wheel (9) drives the anti-slip sleeve (27) and the fixture (4) to rotate, and the fixture (4) drives the tool thereon to rotate in the passivation chamber (6) for sandblasting passivation.

7. The alloy tool edge passivation treatment equipment according to claim 6, characterized in that: The driving assembly includes a pushing mechanism (11) installed on the outer wall of the passivation chamber (6), an electric motor (10) installed on the movable end of the pushing mechanism (11), and a moving path of the movable end of the pushing mechanism (11) is perpendicular to the axial direction of the electric motor (10). The pushing mechanism (11) drives the electric motor (10) to drive the rotating wheel (9) to move closer to or away from the clamp (4).

8. The alloy tool edge passivation treatment equipment according to claim 6, characterized in that: The clamp (4) includes a cylindrical shell rotatably mounted on the outer peripheral surface of the turntable (3), and the shell has an assembly hole connected to the inner cavity of the turntable (3) on the side away from the turntable (3). A plurality of clamps (25) are installed inside the shell and are distributed annularly symmetrically along its axis. The clamps (25) are fixed to the inner wall of the shell by springs (26). The handle of the tool is inserted into the assembly hole and is clamped and fixed by the plurality of clamps (25).

9. The alloy tool edge passivation treatment equipment according to any one of claims 1 to 8, characterized in that: The upper outer wall of the passivation chamber (6) is provided with a pipe joint (21) connected to the outlet end of the sandblasting pipe (7), the upper inner wall of the passivation chamber (6) is provided with evenly distributed nozzles (22), and the nozzles (22) are connected to the inner cavity of the pipe joint (21), the lower end of the passivation chamber (6) has an inclined surface, and the bottom end of the inclined surface has a reflux port (23) and is connected to the recovery pipe (8).

10. The alloy tool edge passivation treatment equipment according to claim 9, characterized in that: The side of the passivation chamber (6) is equipped with balls (24) evenly distributed along the circumference of the sleeve hole. When the passivation chamber (6) is completely sleeved on the periphery of the tool, the balls (24) are in rolling contact with the outer end surface of the fixture (4).

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