A valve core ball spherical grinding machine

Abstract

The present invention discloses a valve core ball spherical surface grinder, which is mainly composed of a machine table and a dividing turntable, a bed assembly and a grinding wheel correction assembly assembled thereon, and these components are arranged on the same side of the bed assembly. In addition, the machine table is also equipped with a workpiece shaft box assembly and a measuring assembly that operate synchronously with the dividing turntable. The workpiece shaft box assembly is used to clamp and position the valve core ball, driving it to rotate around its own axis, and the measuring assembly is responsible for real-time detection of the processing status of the valve core ball. The machine tool also includes a grinding wheel spindle box assembly and a blanking assembly that feed synchronously with the bed assembly, wherein the grinding wheel spindle box assembly is responsible for grinding and positioning the valve core ball, and the blanking assembly receives the processed valve core ball. The grinding wheel correction assembly is responsible for correcting the grinding wheel to maintain the accuracy of grinding. Through this design, the present invention achieves high-precision and high-efficiency processing of the valve core ball, while ensuring the convenience and safety of operation.

Description

Technical Field

[0001] The invention relates to the technical field of valve core ball processing, in particular to a valve core ball spherical surface grinding machine. Background Art

[0002] With the rapid development of industrial automation technology, the requirements for the processing accuracy and efficiency of various precision parts are getting higher and higher. Especially in the valve manufacturing industry, the valve core ball is a key functional component, and its processing quality directly affects the sealing and durability of the valve. The valve core ball usually needs to have a high-precision spherical shape to ensure a good sealing effect and a long service life in the valve. Therefore, higher requirements are placed on the spherical grinding technology of the valve core ball.

[0003] Traditional valve core ball processing equipment usually faces several major problems: First, the processing efficiency is low. Due to the low degree of automation of the equipment, frequent manual intervention is required, resulting in limited production efficiency; second, the processing accuracy is difficult to guarantee. The stability and accuracy of traditional machine tools cannot meet the high-precision requirements, especially in the continuous production process. Factors such as machine tool wear and thermal expansion will affect the processing accuracy; third, the equipment lacks flexibility and adjustability, and cannot quickly adapt to diversified production needs, especially in the multi-angle and all-round grinding of valve core balls.

[0004] In some traditional valve core ball grinders, due to the lack of structural stability of the machine tool itself, vibration is prone to occur after long-term operation, which directly affects the grinding accuracy. For example, after some equipment has been running continuously for several hours, due to thermal expansion of the machine tool and wear of components, the processed valve core ball cannot reach the required accuracy, resulting in leakage during the sealing test.

[0005] Some old grinders require manual adjustment of the grinding angle and position, which not only reduces production efficiency, but also easily leads to operational errors during manual adjustment. In actual cases, operators need to frequently intervene in the operation of the grinder, such as manually replacing worn grinding wheels and manually adjusting the feed rate of the grinder, which greatly increases the complexity and labor intensity of the production process.

[0006] Traditional machine tools are often designed with only basic grinding requirements in mind, and are unable to achieve multi-angle or all-round grinding. For example, some machine tools can only perform single-plane grinding operations, and cannot perform spherical or multi-angle grinding on valve core balls, which limits the application range and performance of the product.

[0007] On some grinding machines, grinding wheel replacement and repair of worn parts are very complicated and require downtime and disassembly of multiple parts to complete, which not only increases maintenance costs but also affects equipment availability. In some cases, the production line is suspended because the grinding wheel replacement takes too long, thus affecting the overall production efficiency.

[0008] Since old machine tools lack effective protection measures, high-speed flying debris generated during operation may cause harm to operators. In addition, long-term exposure to high noise environments may also cause damage to operators' hearing. For example, in a working environment without proper sound insulation measures, operators will face the risk of occupational diseases if they work for a long time.

[0009] In view of the above problems, the present invention proposes a new type of valve core ball spherical surface grinder, aiming to solve the deficiencies in the prior art and provide a valve core ball spherical surface grinding equipment with reasonable structure, easy operation, high processing precision and high efficiency. Summary of the invention

[0010] In view of the above-mentioned deficiencies existing in the prior art, the object of the present invention is to provide a valve core ball spherical grinding machine which can ensure the convenience and safety of operation while providing high-precision and high-efficiency processing.

[0011] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a valve core ball spherical grinding machine, including a machine platform and a dividing turntable, a bed assembly, and a grinding wheel correction assembly assembled on the machine platform, wherein the dividing turntable and the grinding wheel correction assembly are arranged on the same side of the periphery of the bed assembly.

[0012] It also includes a workpiece axle box assembly and a measuring assembly which are assembled on the indexing turntable and operate synchronously with the indexing turntable. The workpiece axle box assembly is used to clamp and position the valve core ball and drive it to operate around its own axis. The measuring assembly is used to detect the processing status of the valve core ball.

[0013] It also includes a grinding wheel spindle box assembly and a blanking assembly which are assembled on the bed assembly and feed synchronously with the bed assembly. The grinding wheel spindle box assembly is used to grind the valve core ball fixed on the workpiece spindle box assembly, and the blanking assembly is used to receive the valve core ball lowered by the workpiece spindle box assembly.

[0014] The grinding wheel correction assembly is used for grinding and correcting the workpiece of the grinding wheel spindle box assembly.

[0015] In some of the implementations, in order to ensure the stability of the valve core ball processing, avoid interference from the external environment to the components involved, avoid the debris generated by grinding from splashing outward, and avoid the valve core ball flying outward due to not being clamped and affecting the life safety of the staff, the following technical solutions are provided.

[0016] The periphery of the machine is fixedly equipped with a protective cover, and the indexing turntable, bed assembly, grinding wheel correction assembly, workpiece axle box assembly, measuring assembly, grinding wheel spindle box assembly, and unloading assembly are all arranged in the protective cover, and the protective cover is equipped with a telescopic protective door.

[0017] In some of the implementations, in order to ensure that the workpiece axle box assembly can be stably installed on the indexing turntable, ensure that the workpiece axle box assembly can effectively clamp and position the valve core ball, and drive the valve core ball to stably operate around the axis, the following technical solutions are provided.

[0018] An assembly seat is fixedly installed on the movable end of the dividing turntable; the workpiece axle box assembly includes a connecting seat A, an assembly cover assembly A, a positioning chuck, and a driving motor A. The connecting seat A is fixedly installed on the assembly seat, the assembly cover assembly A is fixedly installed on the connecting seat A, the positioning chuck is rotatably installed on the assembly cover assembly A and is used to clamp and position the valve core ball, and the driving motor A is fixedly installed on the assembly cover assembly A and maintains a power connection with the positioning chuck.

[0019] In some of the implementations, in order to further improve the stability and accuracy of the installation and positioning of the valve core ball on the positioning chuck, the following technical solutions are provided.

[0020] The workpiece axle box assembly also includes a positioning component, which includes a connecting seat B, a guide seat A, a telescopic cylinder A, and a positioning member A. The connecting seat B is fixedly installed on the assembly seat, the guide seat A is slidably installed on the connecting seat B, the telescopic cylinder A is fixedly installed on the connecting seat B, and the movable end of the telescopic cylinder A is fixedly connected to the guide seat A, and the positioning member A is fixedly installed on the top of the guide seat A.

[0021] In some of the implementations, in order to accurately detect whether there is a product on the positioning chuck to ensure the subsequent normal operation of each component and ensure the operating stability and safety of the equipment, the following technical solutions are provided.

[0022] The workpiece axle box assembly also includes a detection component, which includes a connecting seat C, a telescopic cylinder B, a sliding seat A, a connecting seat D, a telescopic cylinder C, a sliding seat B, a positioning member B, a connecting seat E, a guide seat B, a telescopic cylinder D, and a position sensor. The connecting seat C is fixedly installed on the assembly cover A, the sliding seat A is slidably installed on the connecting seat C, the telescopic cylinder B is fixedly installed on the connecting seat C, and the movable end of the telescopic cylinder B is fixedly connected to the sliding seat A.

[0023] The connecting seat D is fixedly mounted on the sliding seat A, the sliding seat B is slidably mounted on the connecting seat D, the telescopic cylinder C is fixedly mounted on the connecting seat D and the movable end of the telescopic cylinder C is fixedly connected to the sliding seat B, and the positioning member B is fixedly mounted on the sliding seat B.

[0024] The connecting seat E is fixedly mounted on the sliding seat B, the guide seat B is slidably mounted on the connecting seat D, the telescopic cylinder D is fixedly mounted on the connecting seat D, and the movable end of the telescopic cylinder D is fixedly connected to the guide seat B, and the position sensors are all fixedly mounted on the guide seat B.

[0025] In some of the implementations, in order to ensure that the measuring assembly can be stably installed on the assembly seat fixed on the indexing turntable and to ensure that the measuring assembly can effectively detect the valve core ball during the grinding process, the following technical solutions are provided.

[0026] The measuring assembly includes a connecting seat F, a guide seat C, a telescopic cylinder E, a connecting seat G, and an external grinding automatic measuring gauge. The connecting seat F is fixedly mounted on the assembly seat, the guide seat C is slidably mounted on the connecting seat F, the telescopic cylinder E is fixedly mounted on the connecting seat F, and the movable end of the telescopic cylinder E is fixedly connected to the connecting seat G, and the external grinding automatic measuring gauge is fixedly mounted on the connecting seat G.

[0027] In some of the implementations, in order to ensure that the blanking assembly can be stably assembled on the bed and that the blanking assembly can effectively receive the valve core ball processed on the positioning chuck, the following technical solutions are provided.

[0028] The material unloading assembly includes a connecting seat H, a guide seat D, a telescopic cylinder F, and a material receiving box. The connecting seat H is fixedly mounted on the movable part of the bed body, the guide seat D is slidably mounted on the connecting seat H, the telescopic cylinder F is fixedly mounted on the connecting seat H, and the movable end of the telescopic cylinder F is fixedly connected to the guide seat D, the material receiving box is fixedly mounted on the guide seat D, and a material unloading interface is provided on the material receiving box.

[0029] In some of the implementations, in order to ensure that the grinding wheel spindle box assembly can be stably installed on the bed assembly, and to ensure that the valve core ball can be efficiently and accurately processed when the grinding wheel spindle box assembly is running, the following technical solutions are provided.

[0030] The grinding wheel spindle box assembly comprises an assembly outer cover assembly B, a drive motor B, a locking chuck, and a grinding wheel disc. The assembly outer cover assembly B is fixedly mounted on the movable part of the bed assembly, the drive motor B (72) is fixedly mounted on the assembly outer cover assembly B, the locking chuck is rotatably mounted on the assembly outer cover assembly B and maintains power connection with the drive motor B, and the grinding wheel disc is fixedly clamped on the locking chuck.

[0031] In some of the implementations, in order to ensure that the grinding wheel correction part is stably installed on the machine, and to ensure that the grinding wheel correction part is coordinated with the bed part and the grinding wheel spindle box part, so as to achieve efficient and precise grinding of the grinding wheel disc, the following technical solutions are provided.

[0032] The grinding wheel correction assembly includes a mounting pad, an assembly cover assembly C, a drive motor C, and a diamond roller. The mounting pad is fixedly mounted on the machine platform, the assembly cover assembly C is fixedly mounted on the mounting pad, the drive motor C is fixedly mounted in the assembly cover assembly C, the diamond roller is rotatably mounted in the assembly cover assembly C and maintains a power connection with the drive motor C, and a grinding hook groove is provided on the diamond roller that is nested and matched with the grinding wheel disc.

[0033] Beneficial effects of the present invention:

[0034] 1. Improve machining accuracy and repeatability: By integrating a high-precision indexing turntable and a synchronously operated workpiece axle box assembly, the present invention can ensure the stability and precise positioning of the valve core ball during the entire grinding process, effectively avoiding machining inaccuracies caused by mechanical vibration or operating errors. In addition, the real-time monitoring function of the measuring component can ensure that each valve core ball meets strict dimensional and surface quality standards, thereby improving product consistency and reliability.

[0035] 2. Improve production efficiency: The automated design of the equipment significantly improves operating efficiency and production speed. The automatic feeding mechanism of the workpiece shaft box sub-assembly and the grinding wheel spindle box sub-assembly, as well as the automatic unloading assembly, together reduce the need for manual operation, allowing continuous and unattended production, thereby improving overall production throughput.

[0036] 3. Expanded operational flexibility: The valve core ball spherical grinding machine of the present invention is designed to include a graduated rotary table capable of multi-angle and all-round grinding, enabling the machine to handle a variety of different processing requirements. This flexibility makes the machine not only suitable for standard valve core ball production, but also capable of responding to special customized requirements, thereby expanding its market application range.

[0037] 4. Improve operational safety: The equipment design includes comprehensive safety protection measures, such as protective covers and retractable protective doors, which can effectively prevent debris splashing and operational errors, thereby protecting the safety of operators. In addition, the noise and vibration of the machine tool are also effectively controlled, further improving the safety and comfort of the working environment.

[0038] 5. Reduced operation and maintenance costs: By integrating the grinding wheel correction device, the grinding machine of the present invention can automatically correct the worn grinding wheel, which not only ensures the consistency of the grinding effect, but also extends the service life of the grinding wheel, thereby reducing the frequency of grinding wheel replacement and related costs. The modular design of the machine tool also simplifies maintenance work, making component replacement and maintenance more rapid and economical.

[0039] In summary, the valve core ball spherical grinding machine of the present invention not only provides high-precision and high-efficiency processing, but also ensures the convenience and safety of operation, which is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a front view of the present invention;

[0041] Figure 2 This is a top view of the present invention after removing the protective cover;

[0042] Figure 3 This is a schematic diagram of the structure of the present invention after removing the protective cover;

[0043] Figure 4 For the Figure 3 A schematic diagram of the structure from another perspective;

[0044] Figure 5 It is a schematic diagram of the structure of the matching combination of the indexing table, the workpiece shaft box assembly, and the measuring components;

[0045] Figure 6 It is a schematic diagram of the structure of the measuring component installed on the assembly seat;

[0046] Figure 7 It is a structural schematic diagram of the workpiece shaft box being installed on the assembly seat;

[0047] Figure 8 For the Figure 7 A schematic diagram of the structure from another perspective;

[0048] Fig. 9 It is a schematic diagram of the structure of the positioning component;

[0049] Fig.10 It is a schematic diagram of the structure of the detection component;

[0050] Fig.11 It is a structural diagram of the bed assembly, the grinding wheel spindle box assembly, and the blanking assembly.

[0051] Fig.12 For the Fig.11 A schematic diagram of the structure from another perspective;

[0052] Fig.13 It is a structural schematic diagram of the blanking component;

[0053] Fig.14 It is a structural schematic diagram of the grinding wheel correction assembly;

[0054] Fig.15 For the Fig.14 Schematic diagram of the structure from another perspective.

[0055] In the figure: 1 machine, 2 indexing rotary table, 21 assembly seat, 3 bed assembly, 4 grinding wheel correction assembly, 41 mounting pad seat, 42 assembly cover assembly C, 421 splash shield B, 422 protective shell C, 43 drive motor C, 44 diamond roller, 5 workpiece shaft box assembly, 51 connecting seat A, 52 assembly cover assembly A, 521 protective shell A, 53 positioning chuck, 54 drive motor A, 55 positioning component, 551 connecting seat B, 552 guide seat A, 553 telescopic cylinder A, 554 positioning piece A, 56 detection component, 5601 connecting seat C, 5602 telescopic cylinder B, 5603 sliding seat A, 5604 connecting seat D, 5605 Telescopic cylinder C, 5606 sliding seat B, 5607 positioning piece B, 5608 connecting seat E, 5609 guide seat B, 5610 telescopic cylinder D, 5611 position sensor, 6 measuring assembly, 61 connecting seat F, 62 guide seat C, 63 telescopic cylinder E, 64 connecting seat G, 65 external grinding automatic measuring gauge, 7 grinding wheel spindle box assembly, 71 assembly cover assembly B, 711 splash shield A, 712 protective shell B, 72 drive motor B, 73 locking chuck, 74 grinding wheel disc, 8 unloading assembly, 81 connecting seat H, 82 guide seat D, 83 telescopic cylinder F, 84 receiving box, 9 protective cover, 91 telescopic protective door, 92 CNC computer. DETAILED DESCRIPTION

[0056] 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.

[0057] See also Figure 1-15 , and combined with the following embodiments, the various technical solutions provided by the present invention and the principles of the coordinated operation between the various technical solutions are explained, and then the implementation process for the valve core ball grinding process is provided.

[0058] Example 1

[0059] A valve core ball spherical grinding machine comprises a machine platform 1 and a dividing turntable 2, a bed assembly 3, and a grinding wheel correction assembly 4 assembled on the machine platform 1. The dividing turntable 2 and the grinding wheel correction assembly 4 are arranged on the same side of the periphery of the bed assembly 3.

[0060] It also includes a workpiece shaft box assembly 5 and a measuring assembly 6 which are assembled on the indexing turntable 2 and operate synchronously with the indexing turntable 2. The workpiece shaft box assembly 5 is used to clamp and position the valve core ball and drive it to operate around its own axis, and the measuring assembly 6 is used to detect the processing status of the valve core ball.

[0061] It also includes a grinding wheel spindle box assembly 7 and a blanking assembly 8 which are assembled on the bed assembly 3 and fed synchronously with the bed assembly 3. The grinding wheel spindle box assembly 7 is used to grind the valve core ball fixed on the workpiece spindle box assembly 5, and the blanking assembly 8 is used to receive the valve core ball lowered by the workpiece spindle box assembly 5.

[0062] The grinding wheel correction assembly 4 is used for grinding and correcting the working piece of the grinding wheel spindle box assembly 7.

[0063] The valve core ball spherical grinding machine is designed to achieve high-precision spherical grinding of valve core balls. Among them:

[0064] Machine table 1 is the basic frame of the entire grinder, carrying all assembled parts to ensure the stability and processing accuracy of the entire grinder.

[0065] The indexing turntable 2 is a key component installed on the machine table 1, responsible for the precise angle positioning and indexing of the valve core ball. It can rotate the valve core ball on the workpiece shaft box assembly 5 to the required processing position, and can rotate synchronously during the processing to achieve multi-angle and all-round grinding.

[0066] The workpiece shaft box assembly 5 is mounted on the indexing turntable 2 to clamp and position the valve core ball and drive it to rotate around its own axis. This ensures that the valve core ball can remain stable during the grinding process and achieve continuous or indexed rotation around the axis.

[0067] The measuring assembly 6 is also mounted on the indexing turntable 2 and operates synchronously therewith. Its function is to detect the processing status of the valve core ball in real time, including the size and surface quality after grinding, to ensure that the processing accuracy meets the requirements.

[0068] The bed assembly 3 is one of the main structures installed on the machine table 1, supporting the grinding wheel spindle box assembly 7 and the blanking assembly 8, allowing these components to be fed synchronously or adjusted in position to achieve the position adjustment of the grinding wheel spindle box assembly 7 and the blanking assembly 8 and to grind or connect the valve core ball.

[0069] In the bed assembly 3, the servo motor drives the lead screw to drive the carriage to move in a straight line. The carriage is supported by a double V-guide rail, and the straightness and rigidity of the guide rail ensure the straightness of the carriage. The bed and the carriage are cast iron, and the secondary tempering treatment is carried out. The bed and the carriage structure are optimized to reduce deformation as much as possible, ensuring that the bed assembly 3 can drive the grinding wheel spindle box assembly 7 and the blanking assembly 8 installed thereon to feed stably in a straight line direction.

[0070] The grinding wheel spindle box assembly 7 is installed on the bed assembly 3 and is fed synchronously therewith, and is used for accurately grinding the valve core ball fixed on the workpiece spindle box assembly 5.

[0071] The blanking assembly 8 is used to receive the valve core ball ground on the grinding wheel spindle box assembly 7. After the valve core ball is processed, the workpiece spindle box assembly 5 will release it into the blanking assembly 8 to realize an automated production process.

[0072] The grinding wheel correction assembly 4 is located outside the bed assembly 3, and acts with the grinding wheel correction assembly 4 during the feeding process of the bed assembly 3 driving the grinding wheel spindle box assembly 7 to correct and grind the workpiece of the grinding wheel spindle box assembly 7. This is to ensure the shape, size and sharpness of the workpiece (usually a grinding wheel) and ensure that each grinding can meet high-precision requirements.

[0073] During the operation of the grinding machine, the workpiece shaft box assembly 5 will first fix and position the valve core ball. Then, the indexing turntable 2 adjusts the angle of the valve core ball according to the process requirements. The grinding wheel spindle box assembly 7 feeds synchronously and starts grinding the workpiece according to the data provided by the measuring assembly 6. The wear and deformation of the grinding wheel will be corrected by the grinding wheel correction assembly 4 to maintain the high-precision state of the grinding wheel. Finally, the unloading assembly 8 receives the finished valve core ball and waits for the next step of processing or inspection.

[0074] During the whole process, the coordinated work of various components is completed by the machine tool control system, which can accurately control parameters such as feed rate, rotation speed, indexing angle and grinding pressure to ensure high efficiency and high precision of the processing.

[0075] In order to ensure the stability of valve core ball processing, avoid the interference of the various components involved by the external environment, avoid the debris generated by grinding from splashing outward, and avoid the valve core ball flying outward due to not being clamped and affecting the life safety of the staff, the following technical solutions are provided.

[0076] A protective cover 9 is fixedly installed on the periphery of the machine 1, and the indexing turntable 2, the bed assembly 3, the grinding wheel correction assembly 4, the workpiece shaft box assembly 5, the measuring component 6, the grinding wheel spindle box assembly 7, and the unloading component 8 are all arranged in the protective cover 9, and a telescopic protective door 91 is installed on the protective cover 9.

[0077] A numerical control computer 92 is also installed on the outside of the protective cover 9. The numerical control computer 92 includes at least a display screen and operation buttons to realize the transmission of signals and data with the indexing turntable 2, the bed assembly 3, the grinding wheel correction assembly 4, the workpiece shaft box assembly 5, the measuring assembly 6, the grinding wheel spindle box assembly 7, the unloading assembly 8 and the control unit or detection unit of the telescopic protective door 91.

[0078] The design of the protective cover 9 can separate the valve core ball spherical grinding machine from the external environment, ensure the stability of the operation of each component, and prevent the debris generated by the processing or the valve core ball that is not completely clamped from flying outward to affect the safety and health of the staff. During the loading and unloading process, the telescopic protective door 91 is controlled by the CNC computer 92 to ensure the efficient operation of loading and unloading the valve core ball.

[0079] Example 2

[0080] In order to ensure that the workpiece shaft box assembly 5 can be stably installed on the indexing turntable 2, ensure that the workpiece shaft box assembly 5 can effectively clamp and position the valve core ball, and drive the valve core ball to stably operate around the axis, the following technical solution is provided.

[0081] An assembly seat 21 is fixedly installed on the movable end of the dividing turntable 2; the workpiece shaft box assembly 5 includes a connecting seat A51, an assembly outer cover assembly A52, a positioning chuck 53, and a driving motor A54. The connecting seat A51 is fixedly installed on the assembly seat 21, the assembly outer cover assembly A52 is fixedly installed on the connecting seat A51, the positioning chuck 53 is rotatably installed on the assembly outer cover assembly A52 and is used to clamp and position the valve core ball, and the driving motor A54 is fixedly installed on the assembly outer cover assembly A52 and maintains a power connection with the positioning chuck 53.

[0082] The connecting seat A51 is fixed to the assembly seat 21 by a locking bolt assembly, and the assembly cover A52 is also fixed to the connecting seat A51 by a locking bolt assembly, thereby ensuring the stability and accuracy of the fixed combination of the assembly seat 21, the connecting seat A51 and the assembly cover A52.

[0083] The setting of the assembly cover A52 can ensure that the positioning chuck 53 and the drive motor A54 are stably installed thereon. The drive motor A54 adopts a servo motor, and its output shaft adopts a permanent magnet synchronous shaft. It cooperates with the high-precision positioning chuck 53 to fix the valve core ball, and reduces vibration during rotation, which can effectively improve the spherical roundness of the product. The indexing turntable 2 is driven by a servo motor to operate with high precision. When the product is ground, it can drive the valve core ball to rotate and swing within the range of ±2°. Swing grinding can improve the spherical contour and grinding speed of the valve core ball.

[0084] A protective shell A521 is fixedly mounted on the outside of the assembly cover A52, and the drive motor A54 is placed inside the protective shell A521 to effectively protect the drive motor A54.

[0085] In order to further improve the stability and accuracy of the installation and positioning of the valve core ball on the positioning chuck 53, the following technical solution is provided.

[0086] The workpiece shaft box assembly 5 also includes a positioning assembly 55, which includes a connecting seat B551, a guide seat A552, a telescopic cylinder A553, and a positioning member A554. The connecting seat B551 is fixedly installed on the assembly seat 21, the guide seat A552 is slidably installed on the connecting seat B551, the telescopic cylinder A553 is fixedly installed on the connecting seat B551, and the movable end of the telescopic cylinder A553 is fixedly connected to the guide seat A552, and the positioning member A554 is fixedly installed on the top of the guide seat A552.

[0087] The connecting seat B551 is fixed to the assembly seat 21 by bolts. The setting of the connecting seat B551 can ensure that the positioning component 55 is stably installed on the assembly seat 21 on the dividing table 2. After the processed valve core ball is loaded into the positioning chuck 53, the telescopic cylinder A553 runs and drives the guide seat A552 and the positioning part A554 fixed on the guide seat A552 to move upward synchronously. The positioning part A554 acts on the valve core ball and slightly adjusts its position to ensure that the positioning chuck 53 can accurately clamp the valve core ball.

[0088] In order to accurately detect whether there is a product on the positioning chuck 53, to ensure the subsequent normal operation of each component, and to ensure the operational stability and safety of the equipment, the following technical solution is provided.

[0089] The workpiece axle box assembly 5 also includes a detection component 56, which includes a connecting seat C5601, a telescopic cylinder B5602, a sliding seat A5603, a connecting seat D5604, a telescopic cylinder C5605, a sliding seat B5606, a positioning piece B5607, a connecting seat E5608, a guide seat B5609, a telescopic cylinder D5610, and a position sensor 5611. The connecting seat C5601 is fixedly installed on the assembly cover A52, the sliding seat A5603 is slidably installed on the connecting seat C5601, the telescopic cylinder B5602 is fixedly installed on the connecting seat C5601, and the movable end of the telescopic cylinder B5602 is fixedly connected to the sliding seat A5603.

[0090] The connecting seat D5604 is fixedly installed on the sliding seat A5603, the sliding seat B5606 is slidably installed on the connecting seat D5604, the telescopic cylinder C5605 is fixedly installed on the connecting seat D5604 and the movable end of the telescopic cylinder C5605 is fixedly connected to the sliding seat B5606, and the positioning member B5607 is fixedly installed on the sliding seat B5606.

[0091] The connecting seat E5608 is fixedly installed on the sliding seat B5606, the guide seat B5609 is slidably installed on the connecting seat D5604, the telescopic cylinder D5610 is fixedly installed on the connecting seat D5604, and the movable end of the telescopic cylinder D5610 is fixedly connected to the guide seat B5609, and the position sensor 5611 is fixedly installed on the guide seat B5609.

[0092] The installation method of the connection seat C5601, the connection seat D5604, and the connection seat E5608 are all installed by bolt fixing. The setting of the connection seat C5601 can ensure the stable installation of the detection component 56 on the assembly cover A52. The sliding seat A5603 and the connection seat C5601 use a combination of sliders and slide rails to achieve the sliding connection between the two. When controlling the telescopic movement of the telescopic cylinder B5602, it can drive the sliding seat A5603 and the other components directly or indirectly assembled on the sliding seat A5603 to be retracted and extended synchronously.

[0093] The connecting seat D5604 can be fixedly combined with the sliding seat A5603 to ensure that the sliding seat B5606 can slide stably thereon, and the sliding seat B5606 and the connecting seat D5604 also use a combination of sliders and slide rails to achieve a sliding connection between the two. When controlling the telescopic movement of the telescopic cylinder C5605, it can drive the sliding seat B5606 and the connecting seat E5608 and the positioning member B5607 thereon to be retracted and extended synchronously. When the positioning member B5607 abuts against the valve core ball on the positioning chuck 53, the telescopic cylinder D5610 is further controlled to extend to drive the guide seat B5609 and the position sensor 5611 installed thereon to contract synchronously. When the position sensor 5611 contacts the valve core ball and detects the existence of the valve core ball, it indicates that the valve core ball is assembled in place.

[0094] Afterwards, the positioning component 55 and the detection component 56 are controlled to be recovered synchronously, and are ready to enter the subsequent grinding work.

[0095] For the detection component 56 as a whole, the position and posture of the positioning member B5607 and the position sensor 5611 are adjusted in the form of three-axis operation. The positioning member B5607 and the position sensor 5611 cooperate to realize the accurate detection of the valve core ball clamped on the positioning chuck 53 to determine whether the valve core ball is assembled in place.

[0096] Example 3

[0097] In order to ensure that the measuring assembly 6 can be stably installed on the assembly seat 21 fixed on the indexing turntable 2 and to ensure that the measuring assembly 6 can effectively detect the valve core ball during the grinding process, the following technical solution is provided.

[0098] The measuring assembly 6 includes a connecting seat F61, a guide seat C62, a telescopic cylinder E63, a connecting seat G64, and an external grinding automatic measuring gauge 65. The connecting seat F61 is fixedly mounted on the assembly seat 21, the guide seat C62 is slidably mounted on the connecting seat F61, the telescopic cylinder E63 is fixedly mounted on the connecting seat F61, and the movable end of the telescopic cylinder E63 is fixedly connected to the connecting seat G64, and the external grinding automatic measuring gauge 65 is fixedly mounted on the connecting seat G64.

[0099] The connecting seat F61 and the connecting seat G64 are both installed by bolt fixing. When the telescopic cylinder E63 is telescopic, it can drive the connecting seat G64 and the external grinding automatic measuring gauge 65 to be retracted and extended synchronously. The external grinding automatic measuring gauge 65 is used to perform real-time detection of the valve core ball locked and clamped on the positioning chuck 53. The detected data is transmitted to the CNC computer 92 in real time. Based on this, the operation of the indexing table 2, the grinding wheel spindle box assembly 7, and the bed assembly 3 is controlled to continuously process the valve core ball until all specifications of the valve core ball meet the detection standards.

[0100] Example 4

[0101] In order to ensure that the blanking assembly 8 can be stably assembled on the bed body 3 and that the blanking assembly 8 can effectively receive the valve core ball processed on the positioning chuck 53, the following technical solution is provided.

[0102] The material unloading assembly 8 includes a connecting seat H81, a guide seat D82, a telescopic cylinder F83, and a material receiving box 84. The connecting seat H81 is fixedly mounted on the movable part of the bed body 3, the guide seat D82 is slidably mounted on the connecting seat H81, the telescopic cylinder F83 is fixedly mounted on the connecting seat H81, and the movable end of the telescopic cylinder F83 is fixedly connected to the guide seat D82, the material receiving box 84 is fixedly mounted on the guide seat D82, and a material unloading interface is provided on the material receiving box 84.

[0103] The connecting seat H81 is installed on the movable part of the bed body 3 by bolt fixing to ensure the stable installation of the unloading assembly 8. When the telescopic cylinder F83 extends and drives the guide seat D82 and the receiving box 84 to extend outward and be located below the positioning chuck 53, the positioning chuck 53 is relaxed to cancel the clamping and positioning effect of the valve core ball. The processed valve core ball falls and is received by the receiving box 84. After that, the receiving box 84 is driven by the telescopic cylinder F83 to push it back to its original position. The valve core balls collected in the receiving box 84 are finally discharged from the unloading interface to realize the automatic unloading operation of the valve core balls.

[0104] Example 5

[0105] In order to ensure that the grinding wheel spindle box assembly 7 can be stably installed on the bed assembly 3 and to ensure that the valve core ball can be processed efficiently and accurately when the grinding wheel spindle box assembly 7 is in operation, the following technical solutions are provided.

[0106] The grinding wheel spindle box assembly 7 includes an assembly cover assembly B71, a drive motor B72, a locking chuck 73, and a grinding wheel disc 74. The assembly cover assembly B71 is fixedly installed on the movable part of the bed assembly 3, the drive motor B72 is fixedly installed on the assembly cover assembly B71, the locking chuck 73 is rotatably installed on the assembly cover assembly B71 and maintains power connection with the drive motor B72, and the grinding wheel disc 74 is fixedly clamped on the locking chuck 73.

[0107] Two sets of parallelly arranged positioning bars are fixed to the movable parts of the bed body assembly 3, and the assembly cover assembly B71 is fixed to the movable parts of the bed body assembly 3 by means of locking bolt assemblies, and the assembly cover assembly B71 is confined between the two sets of positioning bars, so that the assembly cover assembly B71 can be accurately positioned.

[0108] The setting of the assembly cover B71 can ensure that the drive motor B72, the locking chuck 73, and the grinding wheel 74 are stably installed thereon. The drive motor B72 adopts a servo motor, and its main shaft adopts a permanent magnet synchronous shaft with constant torque rotation output, which ensures that the grinding wheel 74 is efficient and stable during grinding and reduces the adverse effects of vibration on the whole machine.

[0109] When the driving motor B72 drives the locking chuck 73 and the grinding wheel 74 to operate stably, in conjunction with the stable feeding of the bed assembly 3, the valve core ball that operates synchronously with the positioning chuck 53 and deflects synchronously with the indexing turntable 2 can be processed efficiently and accurately.

[0110] The locking chuck 73 fixes the grinding wheel 74 in a detachable manner, which facilitates the replacement operation of the grinding wheel 74.

[0111] A splash shield A711 is detachably fixed to the front side of the assembly cover B71. The splash shield A711 is arranged on the periphery of the grinding wheel 74. When the grinding wheel 74 grinds the valve core ball, the splash shield A711 can effectively block the generated debris from splashing outward, thereby avoiding interference with the normal operation of other components.

[0112] A protective shell B712 is fixedly connected to the rear side of the assembly cover. The protective shell B712 is arranged on the periphery of the drive motor B72 and can effectively protect the drive motor B72 to prevent flying debris from entering the drive motor B72 and affecting its normal operation.

[0113] Example 6

[0114] In order to ensure that the grinding wheel correction assembly 4 is stably installed on the machine platform 1, and to ensure that the grinding wheel correction assembly 4 cooperates with the bed assembly 3 and the grinding wheel spindle box assembly 7 to achieve efficient and accurate grinding of the grinding wheel disc 74, the following technical solutions are provided.

[0115] The grinding wheel correction unit 4 includes a mounting pad 41, an assembly cover C42, a drive motor C43, and a diamond roller 44. The mounting pad 41 is fixedly mounted on the machine 1, the assembly cover C42 is fixedly mounted on the mounting pad 41, the drive motor C43 is fixedly mounted in the assembly cover C42, the diamond roller 44 is rotatably mounted in the assembly cover C42 and maintains power connection with the drive motor C43, and a grinding hook groove is provided on the diamond roller 44 that is nested and matched with the grinding wheel disc 74.

[0116] The mounting pad 41 is formed by a multi-stage flat installation, and is fixed on the machine table 1 by bolt fixing and locking bolt assembly fixing, so that each stage of the mounting pad 41 can be fine-tuned to make the grinding hook groove on the diamond roller 44 accurately dock with the grinding wheel 74.

[0117] The assembly cover C42 is fixed on the uppermost mounting pad 41 by bolts, which can ensure the stable installation and operation of the drive motor C43 and the diamond roller 44. The drive motor C43 adopts a servo motor, and its main shaft is a permanent magnet synchronous shaft, so as to drive the diamond roller 44 to run stably at high speed and realize the correction of the grinding wheel 74, so as to always ensure that the outer edge of the grinding wheel 74 is sharp, and reduce the scrap rate caused by burns during product grinding.

[0118] When grinding the grinding wheel 74, the grinding wheel spindle box assembly 7 and the grinding wheel correction assembly 4 are driven to feed in the direction through the bed assembly 3, so that the grinding wheel 74 is docked with the grinding hook groove on the high-speed diamond roller 44, and the outer edge of the grinding wheel 74 is efficiently ground by the grinding hook groove.

[0119] A splash shield B421 is fixedly connected to the front side of the assembly cover C42, which can prevent the generated debris from splashing outward when the diamond roller 44 interacts with the grinding wheel 74. A protective shell C422 arranged on the periphery of the drive motor C43 is fixedly connected to the rear side of the assembly cover C42 to effectively protect the drive motor C43.

[0120] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0121] 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 valve core ball spherical grinding machine, characterized by: The invention comprises a machine platform (1), an indexing turntable (2), a bed assembly (3), and a grinding wheel correction assembly (4) mounted on the machine platform (1), wherein the indexing turntable (2) and the grinding wheel correction assembly (4) are arranged on the same side of the periphery of the bed assembly (3); and further comprises a workpiece shaft box assembly (5) and a measuring assembly (6) mounted on the indexing turntable (2) and operating synchronously with the indexing turntable (2), wherein the workpiece shaft box assembly (5) is used to clamp and position the valve core ball and drive it to rotate around its own axis, and the measuring assembly (6) is used to clamp and position the valve core ball and drive it to rotate around its own axis. The measuring assembly (6) is used to detect the processing status of the valve core ball; it also includes a grinding wheel spindle box assembly (7) and a blanking assembly (8) which are assembled on the bed assembly (3) and feed synchronously with the bed assembly (3); the grinding wheel spindle box assembly (7) is used to grind the valve core ball fixed on the workpiece spindle box assembly (5), and the blanking assembly (8) is used to receive the valve core ball lowered from the workpiece spindle box assembly (5); the grinding wheel correction assembly (4) is used to grind and correct the workpiece of the grinding wheel spindle box assembly (7); An assembly seat (21) is fixedly mounted on the movable end of the indexing turntable (2); the workpiece shaft box assembly (5) comprises a connecting seat A (51), an assembly outer cover assembly A (52), a positioning chuck (53), and a driving motor A (54); the connecting seat A (51) is fixedly mounted on the assembly seat (21); the assembly outer cover assembly A (52) is fixedly mounted on the connecting seat A (51); the positioning chuck (53) is rotatably mounted on the assembly outer cover assembly A (52) and is used to clamp and position the valve core ball; the driving motor A (54) is fixedly mounted on the assembly outer cover assembly A (52) and maintains a power connection with the positioning chuck (53); The workpiece shaft box assembly (5) further comprises a positioning assembly (55), the positioning assembly (55) comprising a connecting seat B (551), a guide seat A (552), a telescopic cylinder A (553), and a positioning member A (554), the connecting seat B (551) being fixedly mounted on the assembly seat (21), the guide seat A (552) being slidably mounted on the connecting seat B (551), the telescopic cylinder A (553) being fixedly mounted on the connecting seat B (551), and a movable end of the telescopic cylinder A (553) being fixedly connected to the guide seat A (552), and the positioning member A (554) being fixedly mounted on the top of the guide seat A (552); The workpiece axle box assembly (5) further comprises a detection assembly (56), wherein the detection assembly (56) comprises a connecting seat C (5601), a telescopic cylinder B (5602), a sliding seat A (5603), a connecting seat D (5604), a telescopic cylinder C (5605), a sliding seat B (5606), a positioning member B (5607), a connecting seat E (5608), a guide seat B (5609), a telescopic cylinder D (5610), and a position sensor (5611), wherein the connecting seat C (5601) is fixedly mounted on the assembly outer cover assembly A (52), the sliding seat A (5603) is slidably mounted on the connecting seat C (5601), the telescopic cylinder B (5602) is fixedly mounted on the connecting seat C (5601), and a movable end of the telescopic cylinder B (5602) is fixedly connected to the sliding seat A (5603); the connecting seat D (5604) is fixedly mounted on the outer cover assembly A (52), and the movable end of the telescopic cylinder B (5602) is fixedly connected to the sliding seat A (5603); the connecting seat D (5604) is fixedly mounted on the outer cover assembly A (52), and the movable end of the telescopic cylinder B (5602) is fixedly mounted on the connecting seat C (5601). The sliding seat A (5603) is installed on the sliding seat A (5603), the sliding seat B (5606) is slidably installed on the connecting seat D (5604), the telescopic cylinder C (5605) is fixedly installed on the connecting seat D (5604), and the movable end of the telescopic cylinder C (5605) is fixedly connected to the sliding seat B (5606), and the positioning member B (5607) is fixedly installed on the sliding seat B (5606); the connecting seat E (5608) is fixedly installed on the sliding seat B (5606), the guide seat B (5609) is slidably installed on the connecting seat D (5604), the telescopic cylinder D (5610) is fixedly installed on the connecting seat D (5604), and the movable end of the telescopic cylinder D (5610) is fixedly connected to the guide seat B (5609), and the position sensor (5611) is fixedly installed on the guide seat B (5609).

2. A valve core ball spherical grinding machine according to claim 1, characterized in that: The machine platform (1) is fixedly provided with a protective outer cover (9) on its periphery; the indexing turntable (2), the bed assembly (3), the grinding wheel correction assembly (4), the workpiece shaft box assembly (5), the measuring assembly (6), the grinding wheel spindle box assembly (7), and the unloading assembly (8) are all arranged in the protective outer cover (9); and the protective outer cover (9) is provided with a telescopic protective door (91).

3. The valve core ball spherical grinding machine according to claim 1, characterized in that: The measuring assembly (6) comprises a connecting seat F (61), a guide seat C (62), a telescopic cylinder E (63), a connecting seat G (64), and an external grinding automatic measuring gauge (65); the connecting seat F (61) is fixedly mounted on the assembly seat (21); the guide seat C (62) is slidably mounted on the connecting seat F (61); the telescopic cylinder E (63) is fixedly mounted on the connecting seat F (61); a movable end of the telescopic cylinder E (63) is fixedly connected to the connecting seat G (64); and the external grinding automatic measuring gauge (65) is fixedly mounted on the connecting seat G (64).

4. The valve core ball spherical grinding machine according to claim 1, characterized in that: The material unloading assembly (8) comprises a connecting seat H (81), a guide seat D (82), a telescopic cylinder F (83), and a material receiving box (84); the connecting seat H (81) is fixedly mounted on a movable part of the bed assembly (3); the guide seat D (82) is slidably mounted on the connecting seat H (81); the telescopic cylinder F (83) is fixedly mounted on the connecting seat H (81), and a movable end of the telescopic cylinder F (83) is fixedly connected to the guide seat D (82); the material receiving box (84) is fixedly mounted on the guide seat D (82), and a material unloading interface is provided on the material receiving box (84).

5. The valve core ball spherical grinding machine according to claim 1, characterized in that: The grinding wheel spindle box assembly (7) comprises an assembly outer cover assembly B (71), a drive motor B (72), a locking chuck (73), and a grinding wheel disc (74); the assembly outer cover assembly B (71) is fixedly mounted on a movable part of the bed assembly (3); the drive motor B (72) is fixedly mounted on the assembly outer cover assembly B (71); the locking chuck (73) is rotatably mounted on the assembly outer cover assembly B (71) and maintains a power connection with the drive motor B (72); and the grinding wheel disc (74) is fixedly clamped on the locking chuck (73).

6. The valve core ball spherical grinding machine according to claim 5, characterized in that: The grinding wheel correction part (4) comprises a mounting seat (41), an assembly cover C (42), a drive motor C (43), and a diamond roller (44); the mounting seat (41) is fixedly mounted on the machine platform (1); the assembly cover C (42) is fixedly mounted on the mounting seat (41); the drive motor C (43) is fixedly mounted in the assembly cover C (42); the diamond roller (44) is rotatably mounted in the assembly cover C (42) and maintains power connection with the drive motor C (43); and a grinding hook groove is provided on the diamond roller (44) and is nested and matched with the grinding wheel disc (74).

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