A polysilicon spherical regulating valve core precision positioning processing tool

Abstract

The present invention relates to the technical field of regulating valve production, and in particular to a precision positioning processing tool for a polysilicon spherical regulating valve core. The technical solution includes: a support seat is provided on the base, and its surface is ground to stably support the valve core from the bottom. No less than three clamping claws are provided around the base to clamp and fix the valve core together with the support seat. The base is equipped with an electric push rod, and its output end is connected to a lifting push block. The lifting push block is embedded with an electromagnet and cooperates with the permanent magnet at the top of the support seat to achieve stable lifting and lowering of the support seat by magnetic attraction, repulsion and spring. The pull rod on the outside of the support seat is connected to the clamping claw at one end, which can drive the clamping claw to open and close as the support seat rises and falls, and accurately adjust the clamping force. The rubber anti-skid layer on the inside of the clamping claw prevents the valve core from sliding and avoiding damage. The annular distribution of the clamping claw allows the valve core to be evenly stressed, and the guide rod and the linear bearing ensure the lifting accuracy of the support seat, thereby achieving precise positioning and stable clamping of the valve core, meeting various processing requirements, and improving processing accuracy and quality.

Description

Technical Field

[0001] The invention relates to the technical field of regulating valve production, and in particular to a precision positioning processing tool for a polysilicon spherical regulating valve core. Background Art

[0002] The spherical valve core is the core component of a certain type of flow valve body. The accuracy of the hole spacing on the spherical surface of the spherical valve core directly affects the product performance. When drilling holes on the spherical surface, when the drill bit contacts the spherical surface, the valve core is prone to slip and displacement, causing the hole position to shift and the hole spacing cannot meet the design requirements of the drawing.

[0003] After searching, the patent with patent application number CN202021762544.9 discloses a spherical valve core drilling processing device. Although the spherical valve core 9 is fixed in the middle of the horizontal axis 11 when the device is in use, the two ends of the horizontal axis 11 are locked with the azimuth frame to prevent the spherical valve core 9 from sliding left and right, and the horizontal positioning pin 166 is fixed to the horizontal axis 11 and the azimuth frame to stop the spherical valve core 9 from rotating around the horizontal axis 11; the pitch axis 4, the fixing nut 3 and the azimuth frame are fixed to the base together with the spherical valve core 9 to prevent the spherical valve core 9 from sliding back and forth, and the pitch positioning rod 106 is fixed to the base, the azimuth frame and the spherical valve core 9 to stop the spherical valve core 9 from rotating around the pitch axis 4; the drill bit 17 is accurately positioned, the force is uniform, and the deformation is small when drilling from the top. When the spherical valve core 9 drilling processing device is in use, the spherical valve core 9 is fixed at the center of the azimuth frame, and the azimuth frame and the spherical valve core 9 are fixed At the center of the base, the guide sleeve 8 of the guide plate 7 is installed on the center of the base, which is consistent with the center of the azimuth frame and the spherical valve core 9. The drill bit 17 drills holes through the guide sleeve 8 on the guide plate 7, close to the spherical surface of the spherical valve core 9. The force is uniform and the guiding property is good. Each hole drilled points to the center, the positioning is accurate, and the qualified rate of parts processing is high. The spherical valve core 9 of the spherical valve core 9 drilling processing device is fixed with the horizontal axis 11, the end cover of the horizontal axis 11, the anti-rotation screw 14, and the end cover screw 13, and is installed in the circular hole of the azimuth frame. When loading and unloading, just loosen the end cover of the horizontal axis 11 and the anti-rotation screw 14, pull out the horizontal axis 11 from the left end, and the spherical valve core 9 can be easily taken out. When replacing parts, put in the spherical valve core 9, align it with the inner hole, insert it into the horizontal axis 11, the end cover of the horizontal axis 11, and tighten the anti-rotation screw 14 and the end cover screw 13. It is convenient to load and unload, and the batch processing positioning is accurate, but the device has certain limitations when it is used. For example, its adaptability to spherical valve cores of different sizes is poor. When encountering valve cores with large size differences, the entire tooling structure needs to be significantly modified, which is cumbersome and costly. In addition, the device lacks precise control over the clamping force adjustment of the jaws, making it difficult to meet the processing requirements of spherical valve cores of different materials and surface accuracy requirements. It is easy to damage the surface of the valve core during the clamping process, affecting product quality. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a polysilicon spherical regulating valve core precision positioning processing tool, which solves the problems raised in the background technology.

[0005] The solution of the present invention to solve the above technical problems is as follows: A polysilicon spherical regulating valve core precision positioning processing tool, comprising a base, a support seat is installed on the base, the support seat is used to support the valve core from the bottom, and its surface is ground to ensure the contact area with the valve core and the stability of the support, the base is located around the support seat and is provided with clamping claws, the number of the clamping claws is not less than three, and the base clamps and fixes the valve core through the combined action of the clamping claws and the support seat; An electric push rod is installed on the base, the output end of the electric push rod passes through the base, and a lifting push block is installed on the output end of the electric push rod, the lifting push block is connected to the output end of the electric push rod by bolts, an electromagnet is inlaid on the lifting push block, and the magnetic force of the electromagnet is precisely controlled by adjusting the current to adapt to different work requirements, a permanent magnet is installed on the top of the support seat, and a spring is sleeved on the outer side of the lifting push block and the permanent magnet; A pull rod is rotatably mounted on the outer side of the support seat, the pull rod and the support seat are connected via a bearing, one end of the pull rod away from the support seat is rotatably connected to the middle of the clamp, and the end of the base is rotatably connected to the base.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the support seat is raised and lowered by the magnetic attraction and repulsion between the permanent magnet and the electromagnet of the lifting push block. When the support seat is raised and lowered, the support seat pulls the clamping claws to open and close through the pull rod; when the electromagnet is energized to generate a magnetic field that attracts the permanent magnet, the support seat moves downward under the action of the magnetic attraction; when the electromagnet is energized to generate a magnetic field that repels the permanent magnet, the support seat moves upward under the action of the magnetic repulsion and the spring.

[0008] The beneficial effects of adopting the above further scheme are: Compared with the traditional mechanical transmission method, this method of using magnetic attraction and repulsion to control the lifting of the support seat and drive the opening and closing of the clamp has the characteristics of fast response speed and precise action. The magnetic effect can be generated or disappeared in an instant, which can quickly realize the lifting and lowering of the support seat and the opening and closing of the clamp, greatly improving the work efficiency of the tooling. Moreover, by controlling the current size and direction of the electromagnet, the size of the magnetic attraction and repulsion can be accurately adjusted, thereby realizing fine control of the lifting height of the support seat and the clamping force of the clamp, meeting the precise positioning and clamping requirements of different valve core processing.

[0009] Furthermore, the clamping jaws are distributed in a circular array on the outer sides of the base and the support seat, so that the clamping jaws can apply a uniform clamping force to the valve core, thereby preventing the valve core from being deformed due to uneven force.

[0010] The beneficial effects of adopting the above further scheme are: The clamps distributed in the annular array can clamp the valve core from multiple directions at the same time, ensuring that the force on the valve core in all directions is uniform. During the processing, the uniform clamping force can effectively prevent the valve core from being deformed due to excessive local force, ensuring the shape and size accuracy of the valve core. This is especially important for the processing of polysilicon spherical regulating valve cores, which require high precision, and can improve the product's qualification rate and quality stability.

[0011] Furthermore, a guide rod is provided at the bottom end of the support seat, and the guide rod and the support seat are an integrally formed structure. The guide rod of the support seat passes through the base, and a linear bearing is provided between the guide rod and the base. When the support seat is lifted or lowered, it is guided by the cooperation between the guide rod and the base.

[0012] The beneficial effects of adopting the above further scheme are: The one-piece guide rod and support seat structure is more stable, which can ensure that there will be no relative displacement between the guide rod and the support seat during the lifting process of the support seat, thereby improving the overall stability. The setting of the linear bearing greatly reduces the friction resistance between the guide rod and the base, making the lifting and lowering movement of the support seat smoother, while also improving the guidance accuracy. Through the coordinated guidance of the guide rod and the base, the support seat can be accurately lifted and lowered along a predetermined linear trajectory, avoiding deviation or shaking of the support seat during the lifting process, thereby ensuring the accuracy of the opening and closing action of the clamping jaws and the accuracy of the valve core positioning.

[0013] Furthermore, a retaining ring is provided at the top of the permanent magnet, and the retaining ring is connected to the permanent magnet by interference fit or welding. The spring is restricted between the lifting push block and the permanent magnet by the retaining ring and the base. The outer diameter of the retaining ring is larger than the outer diameter of the spring, which can effectively prevent the spring from lateral displacement or falling off during operation, thereby ensuring the normal operation of the spring.

[0014] The beneficial effects of adopting the above further scheme are: The setting of the retaining ring provides an effective limiting effect for the spring. During the lifting and lowering process of the support seat, the spring will continuously compress and stretch. If there is no restriction of the retaining ring, the spring is prone to lateral displacement or even falling off, thus affecting the normal operation of the tooling. The interference fit or welding connection method ensures the firmness of the connection between the retaining ring and the permanent magnet, so that the retaining ring can reliably limit the position of the spring. The retaining ring with an outer diameter larger than the outer diameter of the spring can completely wrap the spring, effectively preventing the spring from abnormal displacement during operation, ensuring that the spring is always in a normal working state, and thus ensuring the stability of the lifting and lowering of the support seat and the opening and closing of the clamping jaws.

[0015] Furthermore, the distance between the lifting push block and the permanent magnet is adjusted by an electric push rod. The displacement accuracy of the electric push rod reaches ±0.05mm, which can accurately control the distance between the lifting push block and the permanent magnet, thereby realizing precise adjustment of the lifting height of the support seat. At the same time, the electric push rod is also equipped with a displacement sensor, which can provide real-time feedback on the position information of the lifting push block for precise control and adjustment.

[0016] The beneficial effects of adopting the above further scheme are: The high-precision displacement control capability of the electric push rod enables the distance between the lifting push block and the permanent magnet to be precisely adjusted, thereby achieving precise adjustment of the lifting height of the support seat. This is critical for the positioning and clamping of valve cores of different specifications, and can ensure that the support seat accurately rises or falls to the appropriate position according to the actual situation of the valve core, providing suitable clamping conditions for the clamp. The configuration of the displacement sensor enables real-time monitoring of the position of the lifting push block. The external control system can adjust the extension and retraction of the electric push rod in time according to the information fed back by the sensor, and accurately correct the lifting height of the support seat, ensuring the stability and reliability of the tooling during operation and improving the accuracy and quality of valve core processing.

[0017] Furthermore, the clamp is provided with a connecting rod and a connecting seat, the pull rod is connected to the connecting rod of the clamp, and the connecting seat is connected to the base. The connecting rod and the connecting seat are both made of high-strength aluminum alloy material. The connecting rod and the pull rod, and the connecting seat and the base are connected by a pin shaft, and the surface of the pin shaft is quenched to improve its wear resistance and strength.

[0018] The beneficial effects of adopting the above further scheme are: The high-strength aluminum alloy material ensures that the connecting rod and the connecting seat have a light weight while ensuring their own strength, reducing the overall weight of the tooling and reducing energy consumption. After the pin surface is quenched, its wear resistance and strength are significantly improved, which can withstand the large force generated by the clamping jaws during the opening and closing process, extend the service life of the pin shaft, and reduce tooling failures caused by wear or damage to the pin shaft. This connection method forms a stable transmission structure between the clamping jaws, connecting rods, connecting seats and pull rods, which can accurately convert the lifting and lowering movement of the support seat into the opening and closing movement of the clamping jaws, ensuring the accuracy and reliability of the clamping jaws.

[0019] Furthermore, a threaded rod is provided on the connecting seat, and a threaded hole is provided on the connecting rod. The connecting rod and the connecting seat are connected via the threaded rod and the threaded hole. This connection method facilitates the replacement of the jaws, thereby being able to accurately adjust the clamping position and angle of the jaws to meet the processing requirements of valve cores of different sizes and shapes. The thread accuracy of the threaded rod is 6H level to ensure the reliability of the connection and the accuracy of the adjustment.

[0020] The beneficial effects of adopting the above further scheme are: Through the connection method of threaded rod and threaded hole, the operator can replace the clamping jaws conveniently and quickly. When it is necessary to process valve cores of different sizes or shapes, the appropriate clamping jaws can be replaced according to the actual situation, and the clamping position and angle of the clamping jaws can be accurately adjusted by rotating the threaded rod. The 6H-level thread accuracy ensures the matching accuracy between the threaded rod and the threaded hole, making the connection more reliable and the adjustment more precise. This adjustability and replaceability greatly improves the versatility and flexibility of the tooling, can meet the diverse valve core processing needs, and reduce the equipment procurement cost of the enterprise.

[0021] Furthermore, the electric push rod is electrically connected to an external control system, which accurately controls the extension and retraction of the electric push rod according to the size and processing requirements of the valve core, thereby accurately adjusting the distance between the lifting push block and the permanent magnet, thereby achieving precise control of the lifting height of the support seat, so as to better adapt to the clamping and positioning requirements of valve cores of different specifications.

[0022] The beneficial effects of adopting the above further scheme are: The electrical connection between the external control system and the electric push rod realizes intelligent control. The operator only needs to input the parameters such as the size and processing requirements of the valve core in the external control system, and the system can automatically calculate and accurately control the extension and contraction of the electric push rod. This automated control method greatly improves the operating efficiency and accuracy of the tooling and reduces the influence of human factors. By accurately adjusting the lifting height of the support seat, it can ensure that valve cores of different specifications can be accurately positioned and clamped, ensuring the stability of the processing process and the consistency of product quality, so that the tooling can adapt to a wider range of valve core processing tasks.

[0023] Furthermore, a rubber anti-skid layer is provided on the inner side of the clamping jaw, and the surface of the rubber anti-skid layer has anti-skid patterns. When the clamping jaw clamps the valve core, the rubber anti-skid layer can increase the friction with the surface of the valve core, effectively preventing the valve core from sliding during processing. At the same time, it can also prevent the clamping jaw from scratching the surface of the valve core, thereby ensuring the processing quality of the valve core.

[0024] The beneficial effects of adopting the above further scheme are: The rubber anti-skid layer and the anti-skid patterns on its surface significantly increase the friction between the clamp and the valve core surface, making the clamp more secure when clamping the valve core, effectively preventing the valve core from sliding due to external forces during processing, and ensuring the accuracy and stability of processing. The rubber material is soft and can act as a buffer when the clamp contacts the valve core, avoiding direct hard contact between the clamp and the valve core surface, thereby preventing the clamp from scratching, indenting and other damage to the valve core surface, ensuring the surface quality and processing accuracy of the valve core, and improving the product qualification rate.

[0025] The present invention provides a polysilicon spherical regulating valve core precision positioning processing tooling, which has the following beneficial effects: The electric push rod is electrically connected to the external control system, and its displacement accuracy reaches ±0.05mm, which can accurately control the distance between the lifting push block and the permanent magnet. The external control system can accurately control the extension and retraction of the electric push rod according to the size of the valve core and the processing requirements, and then accurately adjust the lifting height of the support seat. Since the lifting of the support seat will pull the clamping jaws to open and close through the pull rod, the clamping force of the clamping jaws can be accurately controlled. This allows the tooling to apply just the right clamping force according to the characteristics of different valve cores, avoiding damage to the valve core due to excessive clamping force or sliding of the valve core due to insufficient clamping force, thereby ensuring the stability and safety of the valve core during processing. The electric push rod is equipped with a displacement sensor that can provide real-time feedback on the position information of the lifting push block. Through this feedback mechanism, the external control system can timely understand the opening and closing status of the clamping jaws, and accurately control and adjust according to the actual situation. During the processing process, if there is a slight change in the clamping force of the clamping jaws or the clamping state needs to be adjusted according to the processing progress, the system can respond quickly to ensure that the clamping jaws always maintain the best working state, improving the processing accuracy and quality.

[0026] The magnetic force of the electromagnet is precisely controlled by adjusting the current. Combined with the precise adjustment of the position of the lifting and lowering push block by the electric push rod, the support seat can be lifted and lowered within a large range. When facing valve cores of different sizes and shapes, the opening and closing degree of the clamp can be flexibly adjusted through the synergy of the electric push rod and the electromagnet, so that the clamp can adapt to the clamping needs of valve cores of various specifications. Whether it is a small valve core or a large valve core, the tooling can provide the appropriate clamping force and range, greatly improving the versatility and applicability of the tooling. For valve cores of different shapes, such as spherical, cylindrical, etc., the opening and closing action of the clamp can be controlled by the electric push rod and the electromagnet, and the clamping angle and position of the clamp can be adjusted to better fit the surface of the valve core. This flexibility enables the tooling to meet the diverse needs of valve core processing, expands its application range, and saves equipment procurement costs for enterprises.

[0027] During the opening and closing process of the clamping jaws, the dual control of the electric push rod and the electromagnet makes the movement of the clamping jaws more stable and gentle. Compared with the traditional mechanical clamping method, the impact force on the surface of the valve core is reduced, and the risk of scratches, indentations and other damages to the surface of the valve core caused by the instantaneous clamping or loosening of the clamping jaws is reduced. At the same time, a rubber anti-slip layer is provided on the inside of the clamping jaws to further protect the surface of the valve core and ensure the processing quality of the valve core. By accurately controlling the opening and closing and clamping force of the clamping jaws, the valve core can be subjected to more uniform force during the processing process, avoiding the stress concentration caused by excessive local force. This helps to reduce the deformation of the valve core during the processing process, improve the accuracy and reliability of the valve core, and extend its service life.

[0028] Since the jaws are connected to the support seat by a tie rod, and the connecting rod and the connecting seat of the jaws are connected by a threaded rod and a threaded hole, this structural design makes it very convenient to replace the jaws. When the jaws are worn or need to be adjusted according to different valve cores, they can be replaced quickly and easily, reducing the downtime of the equipment and improving production efficiency. As independent control components, the electric push rod and the electromagnet have high maintainability. If one of the components fails, it can be repaired or replaced separately without affecting the normal operation of other components. This reduces the maintenance cost and difficulty of the equipment and ensures the long-term stable operation of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] In the attached picture: Figure 1 This is a schematic diagram of the appearance of the present invention in a clamping state from an oblique perspective; Figure 2This is a schematic diagram of the front view of the clamping state of the present invention; Figure 3 It is a schematic diagram of the oblique appearance of the present invention; Figure 4 It is a schematic diagram of the top view of the present invention; Figure 5 This is a schematic diagram of the appearance of the lifting push block and the permanent magnet of the present invention; Figure 6 It is a schematic diagram of the oblique appearance of the clamping jaw of the present invention; Figure 7 It is a schematic diagram of the appearance of the clamping jaw of the present invention when viewed from above.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Valve core; 2. Clamp; 201. Anti-skid cushion; 202. Connecting rod; 203. Threaded rod; 204. Connecting seat; 205. Threaded hole; 3. Base; 4. Electric push rod; 5. Support seat; 501. Pull rod; 6. Guide rod; 7. Spring; 8. Lifting push block; 801. Electromagnet; 9. Permanent magnet; 901. Retaining ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 4 As shown, the embodiments provided by the present invention are: Embodiment 1: A polysilicon spherical regulating valve core precision positioning processing tooling, including a base 3, on which a support seat 5 is installed, the support seat 5 is used to support the valve core 1 from the bottom, and its surface is ground to ensure the contact area with the valve core 1 and the stability of the support, the base 3 is located around the support seat 5 and is provided with a clamping claw 2, the inner side of the clamping claw 2 is provided with a rubber anti-skid layer 201, the surface of the rubber anti-skid layer 201 has anti-skid texture, when the clamping claw 2 clamps the valve core 1, the rubber anti-skid layer 201 can increase the friction with the surface of the valve core 1, effectively prevent the valve core 1 from sliding during the processing, and at the same time avoid the clamping claw 2 from scratching the surface of the valve core 1, thereby ensuring the processing quality of the valve core 1, the rubber anti-skid layer and the anti-skid texture on its surface significantly increase the friction between the clamping claw 2 and the surface of the valve core 1, so that the clamping claw 2 is more firm when clamping the valve core 1, effectively preventing the valve core 1 from sliding due to external force during the processing, thereby ensuring the accuracy and stability of the processing. The rubber material is soft and can play a buffering role when the clamping jaws 2 contact the valve core 1, avoiding direct hard contact between the clamping jaws 2 and the surface of the valve core 1, thereby preventing the clamping jaws 2 from causing scratches, indentations and other damages to the surface of the valve core 1, ensuring the surface quality and processing accuracy of the valve core 1, and improving the qualified rate of the product. The number of clamping jaws 2 is not less than three, and the base 3 clamps and fixes the valve core 1 through the clamping jaws 2 and the support seat 5. The clamping jaws 2 are distributed in an annular array outside the base 3 and the support seat 5, so that the clamping jaws 2 can apply a uniform clamping force to the valve core 1 to avoid deformation of the valve core 1 due to uneven force. The clamping jaws 2 distributed in an annular array can clamp the valve core 1 from multiple directions at the same time, ensuring that the force on the valve core 1 in all directions is uniform. During the processing process, the uniform clamping force can effectively prevent the valve core 1 from being deformed due to excessive local force, and ensure the shape accuracy and dimensional accuracy of the valve core 1. This is particularly important for the processing of parts such as the polysilicon spherical regulating valve core 1 which require high precision, and can improve the product's qualification rate and quality stability.

[0034] Embodiment 2: In order to accurately control the clamping force of the clamping jaw 2, for example, Figures 1 to 5 As shown, the present invention also includes: An electric push rod 4 is installed on the base 3, and the electric push rod 4 is electrically connected to the external control system. The external control system accurately controls the extension and contraction of the electric push rod 4 according to the size and processing requirements of the valve core 1, thereby accurately adjusting the distance between the lifting push block 8 and the permanent magnet 9, and realizing accurate control of the lifting height of the support seat 5, so as to better meet the clamping and positioning requirements of valve cores 1 of different specifications. The electrical connection between the external control system and the electric push rod 4 realizes intelligent control. The operator only needs to input parameters such as the size and processing requirements of the valve core 1 in the external control system, and the system can automatically calculate and accurately control the extension and contraction of the electric push rod 4. This automated control method greatly improves the operating efficiency and accuracy of the tooling and reduces the influence of human factors. By accurately adjusting the lifting height of the support seat 5, it can ensure that valve cores 1 of different specifications can be accurately positioned and clamped, thereby ensuring the stability of the processing process and the consistency of product quality, and enabling the tooling to adapt to a wider range of valve core 1 processing tasks. The output end of the electric push rod 4 passes through the base 3, and a lifting push block 8 is installed on the output end of the electric push rod 4. The lifting push block 8 is connected to the output end of the electric push rod 4 by bolts. The distance between the lifting push block 8 and the permanent magnet 9 is adjusted by the electric push rod 4. The displacement accuracy of the electric push rod 4 reaches ±0.05mm, and the distance between the lifting push block 8 and the permanent magnet 9 can be accurately controlled, thereby achieving precise adjustment of the lifting height of the support seat 5. At the same time, the electric push rod 4 is also equipped with a displacement sensor, which can provide real-time feedback on the position information of the lifting push block 8 for precise control and adjustment. The high-precision displacement control capability of the electric push rod 4 enables the distance between the lifting push block 8 and the permanent magnet 9 to be accurately adjusted, thereby achieving precise adjustment of the lifting height of the support seat 5. This is very critical for the positioning and clamping of valve cores 1 of different specifications, and can ensure that the support seat 5 accurately rises or falls to a suitable position according to the actual situation of the valve core 1, providing suitable clamping conditions for the clamping jaws 2.The configuration of the displacement sensor realizes the real-time monitoring of the position of the lifting push block 8. The external control system can timely adjust the extension and contraction amount of the electric push rod 4 according to the information fed back by the sensor, and accurately correct the lifting height of the support seat 5, thereby ensuring the stability and reliability of the tooling during operation and improving the precision and quality of the valve core 1 processing. The lifting push block 8 is inlaid with an electromagnet 801, and the magnetic force of the electromagnet 801 is accurately controlled by adjusting the current to adapt to different working requirements. A permanent magnet 9 is installed on the top of the support seat 5, and the support seat 5 is connected to the lifting push block through the permanent magnet 9. 8 is lifted and lowered by the magnetic attraction and repulsion between the electromagnets 801. When the support seat 5 is lifted and lowered, the support seat 5 pulls the clamping jaws 2 to open and close through the pull rod 501; when the electromagnet 801 is energized to generate a magnetic field that attracts the permanent magnet 9, the support seat 5 moves downward under the action of the magnetic attraction; when the electromagnet 801 is energized to generate a magnetic field that repels the permanent magnet 9, the support seat 5 moves upward under the action of the magnetic repulsion and the spring 7. This method of using the magnetic attraction and repulsion to control the lifting and lowering of the support seat 5 and drive the clamping jaws 2 to open and close has the characteristics of fast response speed and precise action compared to the traditional mechanical transmission method. The magnetic effect can be generated or disappeared in an instant, and the lifting and lowering of the support seat 5 and the opening and closing of the clamping jaws 2 can be quickly realized, which greatly improves the working efficiency of the tooling. Moreover, by controlling the current size and direction of the electromagnet 801, the size of the magnetic attraction and repulsion can be accurately adjusted, thereby achieving fine control of the lifting height of the support seat 5 and the clamping force of the clamping claw 2, meeting the precise positioning and clamping requirements of different valve cores 1 during processing. The bottom end of the support seat 5 is provided with a guide rod 6, and the guide rod 6 and the support seat 5 are an integrally formed structure. The guide rod 6 of the support seat 5 passes through the base 3, and a linear bearing is provided between the guide rod 6 and the base 3. When the support seat 5 is lifted or lowered, it is guided by the cooperation of the guide rod 6 and the base 3. The integrally formed guide rod 6 and the support seat 5 structure are more stable, which can ensure that there will be no relative displacement between the guide rod 6 and the support seat 5 during the lifting process of the support seat 5, thereby improving the overall stability. The setting of the linear bearing greatly reduces the friction resistance between the guide rod 6 and the base 3, making the lifting and lowering movement of the support seat 5 smoother, and also improving the guidance accuracy. Through the coordinated guidance of the guide rod 6 and the base 3, the support seat 5 can be accurately lifted and lowered along a predetermined straight line trajectory, avoiding deviation or shaking of the support seat 5 during the lifting process, thereby ensuring the accuracy of the opening and closing action of the clamping jaws 2 and the accuracy of the positioning of the valve core 1. The lifting push block 8 and the outer side of the permanent magnet 9 are sleeved with a spring 7, and the top of the permanent magnet 9 is provided with a retaining ring 901. The retaining ring 901 and the permanent magnet 9 are connected by interference fit or welding. The spring 7 is limited between the lifting push block 8 and the permanent magnet 9 through the retaining ring 901 and the base 3. The outer diameter of the retaining ring 901 is larger than the outer diameter of the spring 7, which can effectively prevent the spring 7 from lateral displacement or falling off during operation, thereby ensuring the normal operation of the spring 7. The setting of the retaining ring 901 provides an effective limiting effect for the spring 7.During the lifting and lowering process of the support seat 5, the spring 7 will be continuously compressed and stretched. If there is no restriction of the retaining ring 901, the spring 7 is prone to lateral displacement or even fall off, thus affecting the normal operation of the tooling. The interference fit or welding connection method ensures the firmness of the connection between the retaining ring 901 and the permanent magnet 9, so that the retaining ring 901 can reliably limit the position of the spring 7. The retaining ring 901, whose outer diameter is larger than the outer diameter of the spring 7, can completely wrap the spring 7, effectively preventing the spring 7 from abnormal displacement during the working process, ensuring that the spring 7 is always in a normal working state, and thus ensuring the stability of the lifting and lowering of the support seat 5 and the opening and closing of the clamping jaws 2.

[0035] Embodiment 3: In order to facilitate the replacement of the clamping jaws 2, the clamping position and angle of the clamping jaws 2 can be accurately adjusted to meet the processing requirements of valve cores 1 of different sizes and shapes. For example, Figure 1 , Figure 2 and Figure 6 to Figure 7 As shown, the present invention also includes: A pull rod 501 is rotatably installed on the outer side of the support seat 5, and the pull rod 501 is connected to the support seat 5 through a bearing. The end of the pull rod 501 facing away from the support seat 5 is rotatably connected to the middle of the clamp 2, and the end of the base 3 is rotatably connected to the base 3. The clamp 2 is provided with a connecting rod 202 and a connecting seat 204. The pull rod 501 is connected to the connecting rod 202 of the clamp 2, and the connecting seat 204 is connected to the base 3. The connecting rod 202 and the connecting seat 204 are both made of high-strength aluminum alloy material. The connecting rod 202 and the pull rod 501, and the connecting seat 204 and the base 3 are connected by a pin shaft. The surface of the pin shaft is quenched to improve its wear resistance and strength. The high-strength aluminum alloy material makes the connecting rod 202 and the connecting seat 204 have a lighter weight while ensuring their own strength, thereby reducing the overall weight of the tooling and reducing energy consumption. After the pin surface is quenched, its wear resistance and strength are significantly improved, and it can withstand the large force generated by the clamping jaw 2 during the opening and closing process, thereby extending the service life of the pin and reducing tooling failures caused by pin wear or damage. This connection mode forms a stable transmission structure between the clamping jaw 2, the connecting rod 202, the connecting seat 204 and the pull rod 501, which can accurately convert the lifting movement of the support seat 5 into the opening and closing movement of the clamping jaw 2, ensuring the accuracy and reliability of the movement of the clamping jaw 2. The connecting seat 204 is provided with a threaded rod 203, and the connecting rod 202 is provided with a threaded hole 205. The connecting rod 202 and the connecting seat 204 are connected through the threaded rod 203 and the threaded hole 205. This connection mode is convenient for the replacement of the clamping jaw 2, so that the clamping position and angle of the clamping jaw 2 can be accurately adjusted to meet the processing requirements of valve cores 1 of different sizes and shapes. The thread accuracy of the threaded rod 203 is 6H grade to ensure the reliability of the connection and the accuracy of the adjustment. Through the connection mode of the threaded rod 203 and the threaded hole 205, the operator can easily and quickly replace the clamping jaw 2. When it is necessary to process valve cores 1 of different sizes or shapes, the appropriate clamping jaw 2 can be replaced according to the actual situation, and the clamping position and angle of the clamping jaw 2 can be accurately adjusted by rotating the threaded rod 203. The 6H-level thread accuracy ensures the matching accuracy between the threaded rod 203 and the threaded hole 205, making the connection more reliable and the adjustment more precise. This adjustability and replaceability greatly improves the versatility and flexibility of the tooling, can meet the diverse valve core 1 processing needs, and reduces the equipment procurement cost of the enterprise.

[0036] Working principle: The operator inputs corresponding parameters into the external control system according to the size and processing requirements of the valve core 1 to be processed. These parameters will be used to accurately control the working state of the electric push rod 4 and the electromagnet 801 in the future.

[0037] The valve core 1 to be processed is placed on the support seat 5. The surface of the support seat 5 is ground to ensure the contact area with the valve core 1 and the stability of the support, and the valve core 1 is initially supported from the bottom. The base 3 is located around the support seat 5 and the jaws 2 start to move. The number of jaws 2 is not less than three and the circular array is distributed on the outside of the base 3 and the support seat 5. The inner side of the jaw 2 is provided with a rubber anti-skid layer and the surface has anti-skid patterns. When the jaw 2 begins to approach the valve core 1, the rubber anti-skid layer increases the friction with the surface of the valve core 1, effectively preventing the valve core 1 from sliding during subsequent processing, and preventing the jaw 2 from scratching the surface of the valve core 1. The working principle is to use the soft material and anti-skid patterns of the rubber anti-skid layer to increase the friction with the surface of the valve core 1, while playing a buffering role and protecting the surface of the valve core 1.

[0038] The external control system accurately controls the telescopic amount of the electric push rod 4 according to the input valve core 1 size and processing requirements. The electric push rod 4 is installed on the base 3, and its output end passes through the base 3 and is installed with a lifting push block 8. The displacement accuracy of the electric push rod 4 can reach ±0.05mm, and it is equipped with a displacement sensor, which can provide real-time feedback on the position information of the lifting push block 8. The principle is that the electric push rod 4 drives the screw nut mechanism through the motor, converts the rotational motion of the motor into the linear motion of the lifting push block 8, and realizes precise telescopic control. The lifting push block 8 is inlaid with an electromagnet 801, and a permanent magnet 9 is installed on the top of the support seat 5. When the electric push rod 4 adjusts the position of the lifting push block 8, the distance between the lifting push block 8 and the permanent magnet 9 is changed. At the same time, the magnetic force of the electromagnet 801 is precisely controlled by adjusting the current. When the electromagnet 801 is energized to generate a magnetic field that attracts the permanent magnet 9, the support seat 5 moves downward under the action of magnetic attraction; when the electromagnet 801 is energized to generate a magnetic field that repels the permanent magnet 9, the support seat 5 moves upward under the action of magnetic repulsion and the spring 7. The guide rod 6 of the support seat 5 passes through the base 3, and a linear bearing is provided between the guide rod 6 and the base 3. When lifting, the guide rod 6 cooperates with the base 3 to guide and ensure the smooth lifting of the support seat 5. The principle here is to use the magnetic attraction and repulsion between the electromagnet 801 and the permanent magnet 9, combined with the auxiliary effect of the spring 7, to achieve the lifting and lowering movement of the support seat 5, and to ensure the stability and accuracy of the movement through the guide rod 6 and the linear bearing. The lifting and lowering of the support seat 5 will drive the pull rod 501 to move, because the pull rod 501 is rotatably installed on the outer side of the support seat 5, and the pull rod 501 is connected to the support seat 5 through a bearing, and the end of the pull rod 501 away from the support seat 5 is rotatably connected to the middle part of the clamp 2. When the support seat 5 is raised or lowered, the clamping jaw 2 is pulled open or closed by the pull rod 501, thereby accurately adjusting the clamping force of the clamping jaw 2 according to the actual situation of the valve core 1. The principle is to use the lever principle to convert the lifting movement of the support seat 5 into the opening and closing movement of the clamping jaw 2, thereby realizing indirect control of the clamping force of the clamping jaw 2.

[0039] After completing the precise positioning of the valve core 1 and the precise clamping of the clamping jaws 2, the processing equipment starts to process the valve core 1. Since the tooling realizes the precise control of the support seat 5 and the clamping jaws 2 through the coordinated action of the electric push rod 4 and the electromagnet 801, the valve core 1 remains stable during the processing and is not disturbed by the outside world, thus ensuring the processing accuracy. During the processing, the displacement sensor of the electric push rod 4 continuously and in real time feeds back the position information of the lifting and lowering push block 8. Based on this information and the actual situation during the processing, such as detecting the possible slight displacement or force change of the valve core 1, the external control system makes real-time fine adjustments to the electric push rod 4 and the electromagnet 801 to ensure that the clamping jaws 2 always maintain a suitable clamping force on the valve core 1 and the support seat 5 maintains a stable support state, thus ensuring the smooth progress of the processing.

[0040] After the processing is completed, the external control system controls the electric push rod 4 and the electromagnet 801 to make the support seat 5 rise, and drive the clamping jaws 2 to open through the pull rod 501, loosening the clamping of the valve core 1. The principle is opposite to that when the clamping jaws 2 are closed before. By changing the magnetic field direction of the electromagnet 801 and adjusting the position of the lifting push block 8 by the electric push rod 4, the support seat 5 rises, and then drives the clamping jaws 2 to open. The operator removes the processed valve core 1 from the support seat 5, completing the entire processing process. The tooling can then repeat the above steps to perform a new processing operation according to the situation of the next valve core 1 to be processed.

[0041] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A polysilicon spherical regulating valve core precision positioning processing tool, comprising a base (3), a support seat (5) mounted on the base (3), the support seat (5) being used to support the valve core (1) from the bottom, the surface of which is ground to ensure the contact area with the valve core (1) and the stability of the support, the base (3) being provided with clamping claws (2) around the support seat (5), the number of the clamping claws (2) being not less than three, the base (3) clamping and fixing the valve core (1) through the combined action of the clamping claws (2) and the support seat (5), characterized in that: An electric push rod (4) is mounted on the base (3), the output end of the electric push rod (4) passes through the base (3), and a lifting push block (8) is mounted on the output end of the electric push rod (4), the lifting push block (8) is connected to the output end of the electric push rod (4) by bolts, an electromagnet (801) is embedded on the lifting push block (8), and the magnetic force of the electromagnet (801) is precisely controlled by adjusting the current to adapt to different working requirements, a permanent magnet (9) is mounted on the top of the support seat (5), and a spring (7) is sleeved on the outer sides of the lifting push block (8) and the permanent magnet (9); A pull rod (501) is rotatably mounted on the outer side of the support seat (5), the pull rod (501) and the support seat (5) are connected via a bearing, one end of the pull rod (501) facing away from the support seat (5) is rotatably connected to the middle of the clamping claw (2), and the end of the base (3) is rotatably connected to the base (3).

2. According to claim 1, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: The support seat (5) is raised and lowered by the magnetic attraction and repulsion between the permanent magnet (9) and the electromagnet (801) of the lifting push block (8). When the support seat (5) is raised and lowered, the support seat (5) pulls the clamping claw (2) to open and close through the pull rod (501); when the electromagnet (801) is energized to generate a magnetic field that attracts the permanent magnet (9), the support seat (5) moves downward under the action of the magnetic attraction; when the electromagnet (801) is energized to generate a magnetic field that repels the permanent magnet (9), the support seat (5) moves upward under the action of the magnetic repulsion and the spring (7).

3. According to claim 1, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: The clamping jaws (2) are distributed in a circular array on the outer sides of the base (3) and the support seat (5), so that the clamping jaws (2) can exert a uniform clamping force on the valve core (1), thereby preventing the valve core (1) from being deformed due to uneven force.

4. According to claim 1, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: A guide rod (6) is provided at the bottom end of the support seat (5); the guide rod (6) and the support seat (5) are an integrally formed structure; the guide rod (6) of the support seat (5) passes through the base (3); a linear bearing is provided between the guide rod (6) and the base (3); when the support seat (5) is raised or lowered, it is guided by the cooperation between the guide rod (6) and the base (3).

5. According to claim 1, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: A retaining ring (901) is provided at the top of the permanent magnet (9), and the retaining ring (901) is connected to the permanent magnet (9) by means of interference fit or welding. The spring (7) is restricted between the lifting push block (8) and the permanent magnet (9) by means of the retaining ring (901) and the base (3). The outer diameter of the retaining ring (901) is larger than the outer diameter of the spring (7), and can effectively prevent the spring (7) from lateral displacement or falling off during operation, thereby ensuring the normal operation of the spring (7).

6. According to claim 1, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: The distance between the lifting push block (8) and the permanent magnet (9) is adjusted by an electric push rod (4). The displacement accuracy of the electric push rod (4) reaches ±0.05 mm, and the distance between the lifting push block (8) and the permanent magnet (9) can be accurately controlled, thereby realizing accurate adjustment of the lifting height of the support seat (5). At the same time, the electric push rod (4) is also equipped with a displacement sensor, which can provide real-time feedback of the position information of the lifting push block (8) so as to perform accurate control and adjustment.

7. According to claim 1, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: The clamping jaw (2) is provided with a connecting rod (202) and a connecting seat (204); the pull rod (501) is connected to the connecting rod (202) of the clamping jaw (2); the connecting seat (204) is connected to the base (3); the connecting rod (202) and the connecting seat (204) are both made of high-strength aluminum alloy material; the connecting rod (202) and the pull rod (501), and the connecting seat (204) and the base (3) are connected via a pin shaft; the surface of the pin shaft is quenched to improve its wear resistance and strength.

8. According to claim 7, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: The connecting seat (204) is provided with a threaded rod (203), and the connecting rod (202) is provided with a threaded hole (205). The connecting rod (202) and the connecting seat (204) are connected via the threaded rod (203) and the threaded hole (205). This connection method facilitates the replacement of the clamping jaw (2), thereby being able to accurately adjust the clamping position and angle of the clamping jaw (2) to meet the processing requirements of valve cores (1) of different sizes and shapes. The thread accuracy of the threaded rod (203) is 6H grade to ensure the reliability of the connection and the accuracy of the adjustment.

9. According to claim 1, a polysilicon spherical regulating valve core precision positioning processing tool is characterized by: The electric push rod (4) is electrically connected to an external control system, and the external control system accurately controls the extension and retraction amount of the electric push rod (4) according to the size and processing requirements of the valve core (1), thereby accurately adjusting the distance between the lifting push block (8) and the permanent magnet (9), thereby achieving accurate control of the lifting height of the support seat (5), so as to better meet the clamping and positioning requirements of valve cores (1) of different specifications.

10. The polysilicon spherical regulating valve core precision positioning processing tool according to claim 1, characterized in that: A rubber anti-skid layer (201) is provided on the inner side of the clamping jaw (2), and the surface of the rubber anti-skid layer (201) has anti-skid patterns. When the clamping jaw (2) clamps the valve core (1), the rubber anti-skid layer (201) can increase the friction between the valve core (1) and the surface, thereby effectively preventing the valve core (1) from sliding during processing. At the same time, it can also prevent the clamping jaw (2) from scratching the surface of the valve core (1), thereby ensuring the processing quality of the valve core (1).

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