A valve core inner hole processing equipment

By improving the conveying and clamping mechanism and the airflow circulation system, the stability, adaptability and cleanliness issues of the valve core inner hole processing equipment have been solved, realizing efficient multi-process processing and environmental cleanliness, and improving processing accuracy and production efficiency.

CN122077403BActive Publication Date: 2026-07-03CARLSON PRECISION MASCH (KUNSHAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CARLSON PRECISION MASCH (KUNSHAN) CO LTD
Filing Date
2026-04-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing valve core inner hole processing equipment suffers from problems such as insufficient conveying and clamping stability, low efficiency of multi-process collaboration, poor cleanliness of the processing environment, and weak airflow circulation and collection capabilities.

Method used

The conveying mechanism, which uses a conveyor chain plate to engage and slide with the frame, combined with an adjustable clamping mechanism and a multi-process processing end, and equipped with a fan and airflow circulation system, achieves stable conveying, adaptable clamping and efficient debris collection.

Benefits of technology

It improves the stability, adaptability, and efficiency of valve core inner hole machining, enhances the cleanliness of the machining environment, and ensures machining accuracy and continuous production.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of valve core processing technology, specifically disclosing a valve core internal hole processing equipment, comprising: a cabinet with a frame fixedly mounted on its top, a processing end located above the frame, a conveying mechanism arranged on the inner side of the frame, and a clamping mechanism integrated on the conveying mechanism. The clamping mechanism includes a frame plate connected to the outside of the conveying mechanism, slides symmetrically distributed and slidably mounted on the frame plate, chucks for clamping valve cores mounted at the top of the slides, and an adjusting rod telescopically connected to the end of the slides. A base plate is mounted in the middle of the frame plate. This valve core internal hole processing equipment can maintain stable conveying, achieving stable conveying of the processed workpiece after clamping. It is adaptable to different valve cores, enabling multiple processes such as roughing, finishing, and grinding to be used simultaneously. It can also efficiently collect debris, improving the cleanliness of the processing environment and enhancing the stability, adaptability, efficiency, and cleanliness of valve core internal hole processing.
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Description

Technical Field

[0001] This invention relates to the field of valve core processing technology, and more particularly to the field of valve core inner hole processing technology, specifically a valve core inner hole processing equipment. Background Technology

[0002] The valve core is the core component of fluid control elements. The machining accuracy of its inner hole directly determines the valve's sealing performance, flow control accuracy, and service life. With the development of industrial automation and precision manufacturing, the market has placed higher demands on the stability, adaptability, efficiency, and cleanliness of valve core inner hole machining.

[0003] For example, patent CN120080160A discloses a processing device for the inner hole of an automotive solenoid valve core. The device includes a housing, with a partition fixedly connected to the middle of the inner side of the housing. A processing mechanism is located on the right side of the partition, facilitating the processing of the valve core. A fixing mechanism is located on the right side of the partition, facilitating the fixing of the valve core. A filtering mechanism is located in the lower middle part of the inner side of the housing, facilitating the recycling of coolant. The processing mechanism includes a slide rail, which is fixedly connected to the middle of the right end of the inner side of the housing. A mounting base is fixed by a rod, and a first motor drives a first gear to rotate. The rack then moves the platform, allowing the workpiece to be milled, drilled, turned, and ground sequentially on the same machine. This improves processing efficiency while enhancing the precision of the valve core.

[0004] For example, patent CN121018147A discloses a multi-station collaborative hydraulic valve core inner hole fine rolling worktable, including a base, a lifting seat inside the base, and a controller on one side of the base. The multi-station collaborative hydraulic valve core inner hole fine rolling worktable also includes a multi-station processing component, which is located inside the lifting seat. By using fixed stations distributed in a ring at equal intervals to fix the hydraulic valve cores, each hydraulic valve core is sequentially transported to the bottom of each processing station, allowing the multi-station processing array to simultaneously perform corresponding processing operations on the inner holes of multiple hydraulic valve cores. Through multiple rotations and movements of the workpiece, the inner holes of the hydraulic valve cores sequentially complete all processes of preliminary honing, blow cleaning, and fine rolling, simplifying the production process and significantly improving the production efficiency and processing accuracy of hydraulic valve core inner hole processing, thereby meeting the needs of large-scale production.

[0005] However, considering the actual use of existing valve core internal hole machining equipment, it still has certain drawbacks, such as:

[0006] 1. Insufficient stability in conveying and clamping: Traditional conveying mechanisms mostly use single chain or belt drives and lack linkage and limiting structures with the frame. The workpiece is prone to shaking and shifting during conveying, resulting in large coaxiality errors in the inner hole machining. The clamping mechanism is mostly a fixed chuck, which cannot be adapted to valve cores of different diameters or irregular cylindrical shapes, resulting in poor versatility.

[0007] 2. Low efficiency of multi-process collaboration: Roughing, finishing, grinding and other processes require changing different processing ends, and the workpiece needs to be re-clamped when switching, which increases auxiliary time and accumulates positioning errors.

[0008] 3. Poor cleanliness of the processing environment: Metal shavings generated during internal hole machining tend to accumulate on the clamping mechanism or conveying path, which not only affects the accuracy of subsequent machining, but may also embed in the moving parts of the equipment and accelerate wear; Traditional cleaning often relies on manual cleaning after the machine is stopped, which is inefficient and prone to omissions.

[0009] 4. The airflow circulation and collection capacity is weak. Although some equipment is equipped with air blowing devices, the air outlet direction is scattered and there is no directional collection structure. It is difficult to collect and recycle debris, which can easily cause environmental pollution in the workshop.

[0010] Therefore, we propose a valve core inner hole machining equipment to solve the problems mentioned above. Summary of the Invention

[0011] The purpose of this invention is to provide a valve core inner hole processing equipment to solve the problems mentioned in the background art, such as insufficient conveying and clamping stability, low multi-process collaborative efficiency, poor processing environment cleanliness, and weak airflow circulation and collection capabilities of current valve core inner hole processing equipment.

[0012] To achieve the above objectives, the present invention provides the following technical solution: a valve core inner hole processing equipment, comprising: a cabinet, on the top of which a frame is fixedly and integrally mounted, a processing end is provided above the frame, and a conveying mechanism is arranged on the inner side of the frame, wherein a clamping mechanism is integrated on the conveying mechanism;

[0013] The clamping mechanism includes a frame plate connected to the outside of the conveying mechanism. Slide tables are symmetrically distributed and slidably installed on the frame plate. A chuck for clamping the valve core is installed at the top of the slide table. An adjusting rod is telescopically connected to the end of the slide table. A base plate is installed in the middle of the frame plate. A push plate located above the frame is provided on the outside of the adjusting rod. A pushing mechanism is connected to the rear side of the push plate.

[0014] A support frame is fixedly installed on the top of the frame. A support rod is rotatably installed on the inner side of the support frame. A connecting frame is slidably installed on the outer side of the support rod. The bottom of the connecting frame is used to fix the processing end. The connecting frame is assembled and connected as a single component.

[0015] Furthermore: the conveying mechanism includes a conveyor chain plate that circulates within the frame, a conveyor wheel that is meshed with the inner end of the conveyor chain plate, a side plate that is integrally fixed to the side of the frame, a conveyor shaft that is rotatably mounted on the inner side of the side plate and fixed to the conveyor wheel, and a drive motor that is connected to one end of the conveyor shaft.

[0016] Furthermore: a carrier plate is connected to the outer side of the conveyor chain plate, and through holes are symmetrically opened in the middle of the carrier plate, and the through holes are correspondingly connected to the connecting rods fixed on the top surface of the conveyor chain plate.

[0017] Furthermore: the frame plate is fixedly connected to the conveyor chain plate through through holes and connecting rods; the frame plate is connected to blind holes symmetrically opened on the side of the carrier plate through bolts; the side of the frame plate is symmetrically provided with sliding grooves; and the slide table is slidably connected to the inside of the sliding grooves.

[0018] Furthermore: a locking block is engaged with the outer end of the slide, the locking block is bolted to the frame plate, and a spring connected to the outer bottom of the slide is fixed to the top surface of the locking block.

[0019] Furthermore, the inner side of the chuck is provided with a long, narrow groove, through which the chuck is fixedly connected to the top of the slide table with a corresponding bolt, and the end of the slide table is correspondingly connected to the adjusting rod.

[0020] Furthermore: the pushing mechanism includes a protective plate fixedly installed on the side of the top surface of the frame, telescopic rods are fixedly installed at equal intervals inside the protective plate, the telescopic rods are fixedly connected to the push plate, the push plate is correspondingly arranged with the adjusting rod, and the end of the push plate is arc-shaped.

[0021] Furthermore: a fan is installed inside the frame, and the blowing end of the fan is connected to the first air outlet pipe and the second air outlet pipe respectively through a three-way valve. The top end of the first air outlet pipe is connected to a downward blowing branch pipe inserted in the middle of the frame, and the top end of the second air outlet pipe is connected to an upward blowing branch pipe inserted at the bottom of the frame. The air outlet direction of the downward blowing branch pipe and the upward blowing branch pipe is towards the middle of the frame plate.

[0022] Furthermore: the air inlet end of the fan is connected to an inlet pipe, the bottom end of the inlet pipe is connected to a collection box, and the collection box is located inside the cabinet.

[0023] Furthermore: the top surface of the collection box is fitted to the inner top surface of the cabinet, the top surface of the collection box is connected to the bottom surface of the rack, the bottom surface of the rack is inclined towards the center, and the bottom outer side of the collection box is provided with casters.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects: the valve core inner hole processing equipment can maintain stable conveying, realize stable conveying after the workpiece is clamped, adapt to different valve cores, realize the superposition of multiple processes such as roughing, fine processing, and grinding, and can efficiently collect debris to improve the cleanliness of the processing environment, thereby improving the stability, adaptability, efficiency and cleanliness of valve core inner hole processing.

[0025] 1. This solution includes a conveyor chain plate, a carrier plate, a frame plate, and a chuck. While conveying, the inner side of the conveyor chain plate engages and slides with the frame to maintain its stability. The chuck is used through the connection and installation between the carrier plate, the frame plate, and the conveyor chain plate, which facilitates the stable conveying of the workpiece after clamping it.

[0026] 2. This solution includes a slide table, an adjusting rod, and a push plate. The slide table slides on the frame plate and can be pushed by the push plate, thereby being clamped and fixed by the chuck. At the same time, the position can be adjusted by the threaded connection between the adjusting rod and the slide table. This solution is suitable for processing valve cores that are not regular cylindrical shapes.

[0027] Furthermore, the chuck has an internal elongated groove, and its installation position with the slide is adjustable to accommodate different valve core processing.

[0028] 3. This solution includes a support rod, a connecting frame, and a machining end. The machining end is slidably connected to the outside of the support rod via the connecting frame. At least one of the support rods is a threaded drive rod, which facilitates the unified control and adjustment of the machining end and allows for the assembly and stacking of roughing, finishing, grinding, and other processes.

[0029] 4. This solution includes a fan, a first air outlet pipe, a second air outlet pipe, and an inlet pipe. The fan connects the first and second air outlet pipes, allowing air to be blown through the down-blowing and up-blowing branch pipes. This blows impurities on the frame plate off the inner bottom of the frame, facilitating collection through the connection between the bottom of the frame and the collection box. Simultaneously, the inlet pipe draws air into the collection box, ensuring efficient impurity collection through airflow circulation. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall left-side view of the present invention;

[0032] Figure 2 This is a schematic diagram of the overall right-side view of the present invention;

[0033] Figure 3 This is a schematic diagram of the front structure of the present invention;

[0034] Figure 4 For the present invention Figure 3 Schematic diagram of the overall structure of the AA section;

[0035] Figure 5 For the present invention Figure 3 Schematic diagram of the overall structure of the BB cross section;

[0036] Figure 6 This is a schematic diagram of the overall frontal cross-section of the present invention;

[0037] Figure 7 This is a top view of the overall internal structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the overall internal structure of the present invention from a bottom view;

[0039] Figure 9 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0040] Figure 10 This is a schematic diagram of the distribution structure of the conveyor chain plate, frame plate, and push plate of the present invention;

[0041] Figure 11 This is a schematic diagram of the disassembled structure of the carrier plate and the frame plate of the present invention;

[0042] Figure 12 This is a schematic diagram of the arrangement of the downblowing branch pipe and the second air outlet pipe of the present invention.

[0043] In the diagram: 1. Cabinet; 2. Frame; 3. Housing; 4. Side plate; 5. Conveyor shaft; 6. Conveyor wheel; 7. Conveyor chain plate; 701. Connecting rod; 8. Drive motor; 9. Carrier plate; 901. Through hole; 902. Blind hole; 10. Frame plate; 101. Slide groove; 11. Slide table; 12. Chuck; 13. Adjusting rod; 14. Locking block; 15. Spring; 16. Base plate; 17. Guard plate; 18. Telescopic rod; 19. Push plate; 20. Support frame; 21. Support rod; 22. Connecting frame; 23. Processing end; 24. Fan; 25. First air outlet pipe; 26. Downward blowing branch pipe; 27. Second air outlet pipe; 28. Upward blowing branch pipe; 29. ​​Inlet pipe; 30. Collection box; 31. Pulley. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] Please see Figures 1-12 The present invention provides the following technical solution:

[0046] A valve core inner hole processing equipment includes: a cabinet 1, a frame 2, a housing 3, a side plate 4, a conveyor shaft 5, a conveyor wheel 6, a conveyor chain plate 7, a connecting rod 701, a drive motor 8, a carrier plate 9, a through hole 901, a blind hole 902, a frame plate 10, a slide groove 101, a slide table 11, a chuck 12, an adjusting rod 13, a locking block 14, a spring 15, a base plate 16, a guard plate 17, a telescopic rod 18, a push plate 19, a support frame 20, a support rod 21, a connecting frame 22, a processing end 23, a fan 24, a first air outlet pipe 25, a downward blowing branch pipe 26, a second air outlet pipe 27, an upward blowing branch pipe 28, an inlet pipe 29, a collection box 30, and a pulley 31.

[0047] This equipment uses a cabinet 1 as a base, with an integrally formed frame 2 fixed on top. A processing end 23, such as a drill bit, reamer, or grinding wheel, is set on the top of the frame 2. A conveying mechanism is arranged inside the frame 2, and a clamping mechanism is integrated on the outside of the mechanism. The processing mechanism is installed on the top of the frame 2 via a support frame 20. A cleaning and collection system is integrated inside the frame 2. All systems work together through mechanical linkage and airflow circulation.

[0048] In specific application scenarios, the conveying mechanism consists of a conveyor chain plate 7, a conveyor wheel 6, a conveyor shaft 5, a drive motor 8, and a carrier plate 9. The inner side of the conveyor chain plate 7 engages and slides with the frame 2 to maintain conveying stability, and the inner side of its end meshes with the conveyor wheel 6. The conveyor wheel 6 is fixed to the conveyor shaft 5, which is rotatably mounted through a side plate 4 integrally formed on the side of the frame 2. One end is connected to the drive motor 8 to provide power. A connecting rod 701 is fixed on the top surface of the conveyor chain plate 7, and the outer side is connected to the carrier plate 9 through the connecting rod 701. Symmetrical through holes 901 are opened in the middle of the carrier plate 9, which are correspondingly connected to the connecting rod 701. Blind holes 902 are symmetrically provided on the side of the carrier plate 9, and are connected to the frame plate 10 by bolts, so that the frame plate 10 moves cyclically with the conveyor chain plate 7.

[0049] The above technical solution is adopted: the inner side of the conveyor chain plate 7 engages and slides with the frame 2 to maintain the conveying stability; the chuck 12 is installed by connecting the carrier plate 9, the frame plate 10 and the conveyor chain plate 7 to achieve stable conveying of the workpiece after clamping, and avoid coaxiality error caused by shaking and deviation during conveying.

[0050] In specific application scenarios, the clamping mechanism is integrated on the outside of the frame plate 10, including a slide table 11, a chuck 12, an adjusting rod 13, and a pushing mechanism. The frame plate 10 has symmetrical sliding grooves 101 on its sides, and the slide table 11 is slidably connected within the sliding grooves 101. The chuck 12 is fixed to the top of the slide table 11 by bolts. The inner side of the fixed chuck 12 has a long, narrow through-slot for adjustment and installation. The end of the chuck 12 is connected to the adjusting rod 13 via a threaded connection. A locking block 14 engages with the outer side of the end of the sliding groove 101, and the locking block 14 is bolted to the frame plate 10. On the side, the top surface of the locking block 14 is connected to the bottom of the slide table 11 by a spring 15, providing a reset elastic force. The pushing mechanism includes a guard plate 17 fixed to the side of the top surface of the frame 2, telescopic rods 18 installed at equal intervals inside the guard plate 17, and a push plate 19 connected to the front end of the telescopic rod 18. The end of the telescopic rod 18 is arc-shaped to accommodate the adjustment rod 13 entering its inner side. The push plate 19 is set correspondingly to the adjustment rod 13. The telescopic rod 18 pushes the adjustment rod 13 through extension and retraction, thereby driving the slide table 11 to slide in the slide groove 101, realizing the clamping / releasing of the valve core by the chuck 12.

[0051] By adopting the above technical solution: the slide table 11 slides in the slide groove 101 of the frame plate 10 and is pushed by the push plate 19, which can realize the reliable clamping of the valve core by the chuck 12; the threaded connection between the adjusting rod 13 and the slide table 11 can adjust the position of the slide table 11 after the extrusion movement. Combined with the adjustable installation of the long strip-shaped through groove on the inner side of the chuck 12, it can adapt to valve cores of different diameters or irregular cylindrical valve cores, such as irregularly shaped valve cores with bosses, thus improving versatility.

[0052] In specific application scenarios, the processing mechanism consists of a support frame 20, a support rod 21, a connecting frame 22, and a processing end 23. The support frame 20 is fixed above the machine frame 2, and the support rod 21 is rotatably installed on its inner side. At least one of the support rods 21 is a threaded transmission rod used to precisely adjust the position of the height connecting frame 22. The connecting frame 22 is slidably installed on the outer side of the support rod 21. The processing end 23, such as a drill bit, reamer, or grinding wheel, is fixed at the bottom of the connecting frame 22. The sides of the connecting frame 22 are connected by bolts, which can be used to combine and install different processing ends 23.

[0053] The above technical solution is adopted: the processing end 23 is slidably connected to the outside of the support rod 21 through the connecting frame 22, which can integrate multiple processes such as roughing, fine processing, and grinding, avoid the increase of auxiliary time and the accumulation of positioning errors, and improve the efficiency of multi-process collaboration.

[0054] In a specific application scenario, the cleaning and collection system includes a blower 24, a first air outlet pipe 25, a downward blowing branch pipe 26, a second air outlet pipe 27, an upward blowing branch pipe 28, an inlet pipe 29, and a collection box 30. The blower 24 is installed inside the frame 2, and its blowing end is connected to the first air outlet pipe 25 through a three-way valve. The top of the first air outlet pipe 25 is connected to the downward blowing branch pipe 26, which passes through the middle of the frame 2 and is used to blow air onto the inner side of the conveyor chain plate 7. The blowing end is connected to the second air outlet pipe 27, and the top of the second air outlet pipe 27... The blower 24 is connected to the blower branch pipe 28, which passes through the bottom of the frame 2 and is used to blow air onto the frame plate 10 from the bottom. The air outlet direction of both blower branch pipes is towards the middle of the frame plate 10, which can blow away metal debris in a directional manner. The air inlet end of the blower 24 is connected to the collection box 30 located inside the cabinet 1 through the inlet pipe 29. The top surface of the collection box 30 is attached to the top surface of the inner side of the cabinet 1, and its top surface is connected to the bottom surface of the frame 2. The bottom surface of the frame 2 is inclined to the middle to guide the debris to slide in. The bottom outer side of the collection box 30 is equipped with pulleys 31 for easy movement and cleaning.

[0055] The above technical solution is adopted: the blower 24 blows metal debris off the frame plate 10 through the down blowing branch pipe 26 and the up blowing branch pipe 28. The inclined bottom surface of the frame 2 and the connection of the collection box 30 can guide the debris to slide into the collection box 30. The blower 24 draws air into the collection box 30 through the inlet pipe 29 to form an airflow circulation, which ensures the efficiency of debris collection, avoids accumulation that affects the processing accuracy or embeds it into moving parts, and improves the cleanliness of the workshop environment.

[0056] Example:

[0057] This embodiment takes the processing of an irregularly shaped valve core with a boss, such as a valve core diameter of 20mm, a boss height of 3mm, an inner hole that needs to be processed to 8mm, and a surface roughness of Ra0.8μm, as an example to describe in detail the actual operation process of this valve core inner hole processing equipment.

[0058] First, prepare for processing. Turn on the power to cabinet 1, check the status of each system, and confirm that the inner side of the conveyor chain plate 7 and the frame 2 are properly engaged and sliding. Test the idle rotation of the drive motor 8 through the conveyor shaft 5 to ensure there is no jamming. Ensure that the slide table 11 slides smoothly in the slide groove 101 of the frame plate 10, and that the threaded connection between the adjusting rod 13 and the slide table 11 is secure. Adjust the extension and retraction of the adjusting rod 13 at the outer end of the slide table 11 according to the valve core structure. Clean the long strip groove inside the chuck 12 to remove foreign objects. Connect the chuck 12 to the slide table. After adjusting the position between 11, the bolts are fixed to ensure that the symmetrically distributed chucks 12 perfectly clamp the valve core after being squeezed inward. It is confirmed that the support rod 21 (including 1 threaded transmission rod) rotates flexibly, the connecting frame 22 slides normally on the outside of the support rod 21, the machining end 23 is pre-installed with drill bit (rough machining), reamer (finish machining), and grinding wheel (grinding), the fan 24 is running normally, the air outlet direction of the down blowing branch pipe 26 and the up blowing branch pipe 28 is aligned with the middle of the frame plate 10, the collection box 30 is moved to the inside of the cabinet 1 through the pulley 31, and the bottom surface of the frame 2 is tilted.

[0059] The irregularly shaped valve core to be processed is placed inside the clamp 12 of the frame plate 10 above the left end of the conveyor chain plate 7 by a feeding mechanism, such as a mechanical claw or other feeding device. At the same time, the top surface of the base plate 16 installed in the middle of the inner side of the frame plate 10 can be opened to engage with the bottom end of the valve core, ensuring the valve core is limited. And through the elastic action of the spring 15, the slide table 11 can slide towards the middle of the base plate 16, and the valve core is clamped by the clamp 12.

[0060] Start the drive motor 8, the conveyor shaft 5 drives the conveyor wheel 6 to rotate, the conveyor chain plate 7 moves cyclically along the inner side of the frame 2, the conveyor chain plate 7 drives the carrier plate 9 through the top connecting rod 701, the carrier plate 9 is bolted to the frame plate 10 through the blind hole 902, so that the frame plate 10 moves synchronously with the conveyor chain plate 7, and conveys the valve core to the "processing station", the middle of the frame 2 is directly below the processing end 23; at this time, the inner side of the conveyor chain plate 7 is engaged and limited with the frame 2 to avoid shaking during conveying and ensure the positioning accuracy of the valve core;

[0061] After the valve core enters the processing station, the push plate 19 automatically pushes the adjusting rod 13, causing the slide table 11 to slide inward. The valve core is stably clamped by the chuck 12. The extension rod 18 extends to push the push plate 19 to adapt to different clamping distance requirements, so as to achieve stable clamping during conveying.

[0062] The connecting frame 22 can be slidably adjusted by a support rod 21, at least one of which is a threaded drive rod, so that the processing end 23 moves above the valve core. The valve core is processed by the processing end 23, such as rough machining (drilling), with a set speed of 800 r / min and a feed rate of 0.1 mm / r, drilling to an inner hole of Φ7.8 mm (leaving a 0.2 mm finishing allowance). After rough machining is completed, the valve core is moved to the bottom of the next processing end 23 for finishing machining (reaming), with a set speed of 300 r / min and a feed rate of 0.05 mm / r, reaming to Φ8 mm (accuracy IT7 grade). After finishing machining is completed, the valve core is moved to the bottom of the next processing end 23 for grinding (polishing), polishing the hole wall and reducing the surface roughness to Ra0.8 μm. While continuously feeding, the next set of valve cores can be processed to ensure continuous processing. At the same time, the connecting frame 22 can be assembled and installed to accommodate different processing ends 23.

[0063] During the processing, the cleaning and collection system is started simultaneously. The blower 24 is connected to the first air outlet pipe 25 and the second air outlet pipe 27 through the three-way valve. Air is blown towards the middle of the frame plate 10 through the down-blowing branch pipe 26 and the up-blowing branch pipe 28. The metal chips generated by drilling, reaming and grinding are blown off at a pressure of 0.3MPa. The chips slide into the collection box 30 along the bottom surface of the frame 2. The air inlet of the blower 24 draws air into the collection box 30 through the inlet pipe 29 (negative pressure -0.05MPa) to form an airflow circulation, ensuring that the chips are efficiently drawn into the collection box 30. After the processing is completed, the cabinet 1 is opened and the collection box 30 is moved out by the bottom pulley 31 for chip removal.

[0064] At the same time, the valve core that has been processed and entered into the right end of the frame 2 is fed into the machine by a feeding mechanism, such as a mechanical claw or a conveyor belt, for use in a cyclic operation.

[0065] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention; the contents not described in detail in this specification belong to the prior art known to those skilled in the art; in addition, the directional terms such as up, down, left, right, front, and back in the text only represent their relative positions and not absolute positions.

[0066] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0067] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A valve core inner hole machining equipment, comprising: A cabinet (1) has a frame (2) fixedly installed on its top, and a processing end (23) is provided above the frame (2). The cabinet is characterized in that a conveying mechanism is arranged on the inner side of the frame (2), and a clamping mechanism is integrated on the conveying mechanism. The clamping mechanism includes a frame plate (10) connected to the outside of the conveying mechanism. A slide table (11) is symmetrically distributed and slidably installed on the frame plate (10). A chuck (12) for clamping the valve core is installed at the top of the slide table (11). An adjusting rod (13) is telescopically connected to the end of the slide table (11). A base plate (16) is installed in the middle of the frame plate (10). A push plate (19) located above the frame (2) is provided on the outside of the adjusting rod (13). A pushing mechanism is connected to the rear side of the push plate (19). A support frame (20) is fixedly installed on the top of the frame (2). A support rod (21) is rotatably installed on the inner side of the support frame (20). A connecting frame (22) is slidably installed on the outer side of the support rod (21). The bottom of the connecting frame (22) is used to fix the processing end (23). The connecting frame (22) is assembled and connected as a single component. The conveying mechanism includes a conveying chain plate (7) that circulates within the frame (2), a conveying wheel (6) that meshes with the inner end of the conveying chain plate (7), a side plate (4) that is integrally fixed to the side of the frame (2), a conveying shaft (5) that is fixed to the conveying wheel (6) that is rotatably mounted on the inner side of the side plate (4), and a drive motor (8) that is connected to one end of the conveying shaft (5). The outer side of the conveyor chain plate (7) is connected to a carrier plate (9). The carrier plate (9) has through holes (901) symmetrically opened in the middle front and back. The through holes (901) are correspondingly connected to the connecting rod (701) fixed on the top surface of the conveyor chain plate (7). The frame plate (10) is fixedly connected to the conveyor chain plate (7) through the through hole (901) and the connecting rod (701). The frame plate (10) is connected to the blind holes (902) symmetrically opened on the side of the carrier plate (9) by bolts. The frame plate (10) is symmetrically opened with sliding grooves (101) on the side. The slide table (11) is slidably connected to the inside of the sliding groove (101). A locking block (14) is engaged on the outer side of the end of the slide (101). The locking block (14) is bolted to the frame plate (10). A spring (15) connected to the outer side of the bottom of the slide table (11) is fixed on the top surface of the locking block (14). The pushing mechanism includes a guard plate (17) fixedly installed on the side of the top surface of the frame (2). Telescopic rods (18) are fixedly installed at equal intervals inside the guard plate (17). The telescopic rods (18) are fixedly connected to the push plate (19). The push plate (19) is correspondingly arranged with the adjusting rod (13). The end of the push plate (19) is arc-shaped.

2. The valve core inner hole processing equipment according to claim 1, characterized in that: The inner side of the chuck (12) is provided with a through groove in the shape of a long strip. The chuck (12) is fixedly connected to the top of the slide (11) by a corresponding bolt through the through groove. The end of the slide (11) is connected to the adjusting rod (13).

3. The valve core inner hole processing equipment according to claim 1, characterized in that: A fan (24) is installed inside the frame (2). The blowing end of the fan (24) is connected to the first air outlet pipe (25) and the second air outlet pipe (27) respectively through a three-way valve. The top end of the first air outlet pipe (25) is connected to a down-blowing branch pipe (26) that passes through the middle of the frame (2). The top end of the second air outlet pipe (27) is connected to an up-blowing branch pipe (28) that passes through the bottom of the frame (2). The air outlet direction of the down-blowing branch pipe (26) and the up-blowing branch pipe (28) is towards the middle of the frame plate (10).

4. The valve core inner hole processing equipment according to claim 3, characterized in that: The air inlet of the fan (24) is connected to an inlet pipe (29), and the bottom end of the inlet pipe (29) is connected to a collection box (30), which is located inside the cabinet (1).

5. The valve core inner hole machining equipment according to claim 4, characterized in that: The top surface of the collection box (30) is fitted to the inner top surface of the cabinet (1). The top surface of the collection box (30) is connected to the bottom surface of the rack (2). The bottom surface of the rack (2) is inclined towards the middle. The bottom outer side of the collection box (30) is provided with a pulley (31).