A ball valve surface polishing mechanism

Abstract

The present invention discloses a ball valve surface polishing mechanism, which belongs to the technical field of polishing processing. The ball valve surface polishing mechanism comprises a fixed base, a main driving module is installed on one side of the top of the fixed base, a clamping and fixing module is fixedly installed on the output end of the main driving module, and a top module corresponding to the clamping and fixing module is fixedly installed on the other side of the top of the fixed base; a rotating driving module is fixedly installed on one side of the top of the fixed base close to the main driving module, a polishing module is fixedly installed on the rotating driving module, and a traction module corresponding to the polishing module is installed on one side of the rear end of the top of the fixed base. The present invention can quickly complete the clamping and fixing and disassembly of the ball to be processed by designing the clamping and fixing module, the top module, the polishing module and the traction module. The manual operation only needs to sleeve the ball to be processed on the clamping and fixing module, which not only saves time and effort, but also improves the processing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing processing, and in particular relates to a ball valve surface polishing mechanism. Background Art

[0002] Ball valve polishing refers to the polishing of the surface of the ball in the ball valve to improve its appearance and corrosion resistance. Normally, ball valve processing mainly includes the following steps: Deburring: First, the surface of the ball valve needs to be deburred to ensure that the surface is smooth and free of impurities; Rough grinding: Use tools such as grinding wheels to rough grind the surface of the ball valve to remove surface roughness and oxide layers; Polishing: Polishing is performed using polishing machines or hand tools to make the surface of the ball valve reach a certain degree of smoothness and gloss; Cleaning: Clean the surface of the ball valve to remove residues and dirt generated during the polishing process; Surface treatment: According to needs, the surface of the ball valve can be rust-proofed or coated to improve its corrosion resistance and durability.

[0003] Polishing is an important process in ball valve processing. Ball valve polishing can make the surface of the ball valve smoother and more delicate, improve the appearance and quality of the product, and also help to extend the service life of the ball valve. Ball valve polishing requires the use of special polishing equipment. At present, many polishing equipment on the market have certain defects. The clamping parts of existing polishing equipment usually use special tooling fixtures. When clamping and disassembling ball valves, not only is the operation time-consuming and labor-intensive, but it will also seriously affect the production and processing progress during batch processing. At the same time, the polishing module of existing equipment generally uses two symmetrical sets of polishing components to clamp and polish the ball. First, positioning is difficult, and manual adjustment and positioning require manual assistance; second, the structure of the symmetrical polishing component is relatively complex, and it is difficult to adjust the uniform clamping force, which will also affect the subsequent polishing accuracy to a certain extent. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a ball valve surface polishing mechanism.

[0005] The technical solution adopted to solve the above technical problems is: a ball valve surface polishing mechanism, comprising a fixed base, a main driving module is installed on one side of the top of the fixed base, a clamping and fixing module is fixedly installed on the output end of the main driving module, a ball to be processed is clamped and fixed on the clamping and fixing module, and a top-to-bottom module corresponding to the clamping and fixing module is fixedly installed on the other side of the top of the fixed base;

[0006] A rotating driving module is fixedly installed on one side of the top of the fixed base close to the main driving module, a polishing module is fixedly installed on the rotating driving module, and a traction module corresponding to the polishing module is installed on one side of the rear end of the top of the fixed base;

[0007] A polishing liquid adding module for automatically adding polishing liquid to the ball to be processed is provided on the top of the main driving module, and a liquid collecting tank located directly below the ball to be processed is also provided on the fixed base for collecting dripping polishing liquid.

[0008] Furthermore, the main drive module includes a main box fixed to one side of the top of the fixed base, a main drive motor is installed in the main box, an output shaft of the main drive motor passes through the main box and is fixedly connected to a mounting plate.

[0009] Through the above technical solution, during processing, the main drive motor can drive the mounting plate to rotate synchronously through its output shaft, and then drive the clamping and fixing module connected thereto to rotate, and finally drive the sphere to be processed to rotate synchronously, so as to cooperate with the polishing module to perform rotational polishing on the sphere to be processed.

[0010] Furthermore, the clamping and fixing module includes a connecting plate fixed on the mounting plate, the connecting plate being fixed to the mounting plate by a plurality of first fixing screws, a fixing column being fixedly connected to one side of the connecting plate, a plurality of evenly distributed H-shaped brackets being fixedly connected to the end surface of the fixing column away from the connecting plate, an end sleeve being fixedly connected to the other end of the plurality of H-shaped brackets, each of the H-shaped brackets being provided with two shrinkage grooves, a rotating clamping arm being rotatably connected in each of the shrinkage grooves, a non-slip pad being fixedly connected to the portion where each rotating clamping arm contacts the sphere to be processed, a first connecting rod being rotatably connected between each group of rotating clamping arms, a rotating bracket being fixedly connected to each of the first connecting rods, a second connecting rod being rotatably connected to each of the rotating brackets, the other ends of the plurality of second connecting rods being rotatably connected to a rotating seat together, a guide rod being fixedly connected to one side of the rotating seat, a first return spring being sleeved on the outer wall of the guide rod, and a limiting sleeve being fixedly connected to the inner end surface of the fixing column.

[0011] Through the above technical solution, the clamping and fixing module is used for clamping and fixing the sphere to be processed, so that it can be rotated and polished by the polishing module in the future. During processing, the sphere to be processed can be directly passed through the end sleeve and sleeved on the appropriate position on the outside of the multiple H-shaped brackets. When the polishing module is slowly released by the traction module, the inner concave surface of its polishing component will slowly fit with the spherical surface of the sphere to be processed. In this process, through the slow contact between the two, the clamping position of the sphere to be processed can also be slowly automatically adjusted; in addition, when the rotating ejector pin of the ejector module is inserted into the end sleeve, the conical inclined surface of the rotating ejector pin will slowly press against the multiple rotating clamp arms in contact with it, and make the multiple rotating clamp arms rotate on the H-shaped bracket, and then use the multiple rotating clamp arms to expand outwards and clamp the sphere to be processed. The inner wall, since each group of rotating clamp arms is rotatably connected with a first connecting rod, both ends of the first connecting rod are respectively rotatably connected with the corresponding rotating clamp arms, when the rotating clamp arms that contact and rotate with the rotating ejector pin rotate, the other multiple rotating clamp arms are also synchronously driven to expand outward through multiple first connecting rods, so that multiple groups of rotating clamp arms can be used to evenly clamp various parts on both sides of the inner wall of the sphere to be processed to ensure the stability and reliability of clamping and fixing. At the same time, when multiple groups of rotating clamp arms are synchronously expanded outward to clamp the sphere to be processed, the function of automatic centering can also be realized, so that the central axis of the sphere to be processed and the central axis of the fixed column are located on the same straight line, thereby ensuring the stability of the sphere to be processed during subsequent rotation, and also ensuring the subsequent polishing quality and polishing accuracy.

[0012] Furthermore, a through hole is provided on the inner end surface of the fixing column, and the guide rod passes through the through hole and the limiting sleeve and extends toward the inside of the fixing column.

[0013] Through the above technical solution, under normal conditions, due to the elastic action of the first return spring, the first return spring will push the rotating seat to one side, so that the rotating seat can drive the multiple first connecting rods to move toward the top module through the multiple second connecting rods, and then drive the multiple rotating clamping arms to shrink in the corresponding shrinkage grooves, so that the sphere to be processed can be conveniently and quickly sleeved on the clamping and fixing module, and after the processing is completed, it is also convenient to quickly unload the sphere to be processed.

[0014] Furthermore, the top module includes a support platform fixed to the other side of the top of the fixed base, a horizontally placed top cylinder is fixedly installed on the support platform, one end of the piston rod of the top cylinder is sleeved with a rotating bearing, and a rotating ejector pin is installed on the outer ring of the rotating bearing.

[0015] Through the above technical scheme, the top module is mainly used to cooperate with the clamping and fixing module to complete the rapid clamping and fixing of the sphere to be processed. The piston rod of the top cylinder can drive the rotating ejector to contact and squeeze the multiple rotating clamping arms by extending, so that the multiple rotating clamping arms can be quickly unfolded, thereby completing the rapid clamping and fixing of the sphere to be processed. In addition, since a rotating bearing is installed between the piston rod of the top cylinder and the rotating ejector, when the rotating ejector is pressed against the multiple rotating clamping arms, it can also rotate synchronously with the clamping and fixing module during the polishing process. After polishing is completed, the top cylinder will drive the rotating ejector to automatically reset.

[0016] Furthermore, the push-to-pull cylinder can drive the rotating ejector to move synchronously through the extension and retraction of the piston rod. When clamping the sphere to be processed, the rotating ejector can be used to synchronously press against multiple rotating clamping arms in contact with it, so that the multiple rotating clamping arms can be rotated and opened synchronously, thereby clamping and fixing the sphere to be processed from the inside.

[0017] Furthermore, the rotation drive module includes a support frame fixed on a fixed base, a positioning ring is fixedly connected to the top of the support frame, a positioning bearing is installed on one side of the outer wall of the positioning ring, a gear ring is fixedly installed on the outer ring of the positioning bearing, a servo motor is installed at the center position of the bottom of the support frame, and the output end of the servo motor is fixedly connected to a driving gear meshing with the gear ring.

[0018] Through the above technical scheme, the rotary drive module is mainly used to drive the polishing module to perform circular motion. When the servo motor is working, it can drive the driving gear to rotate synchronously through its output shaft. When the driving gear rotates, it can engage with the ring gear, thereby driving the ring gear and the polishing module on the ring gear to rotate synchronously, so as to facilitate the polishing module to perform 360-degree all-round polishing on the outer surface of the sphere to be processed.

[0019] Furthermore, the polishing module includes a fixed bracket fixed on the gear ring, a fixed rod passing through the fixed bracket, a limiting ring fixedly installed on the top end of the fixed rod, a fixed plate fixedly connected to the bottom end of the fixed rod, a second return spring sleeved on the outer wall of the fixed rod, a detachable mounting seat installed at the bottom of the fixed plate, a polishing assembly rotatably connected to the bottom of the fixed plate, and the mounting seat is fixed to the fixed plate by a plurality of second fixing screws.

[0020] Through the above technical scheme, the polishing module is used for polishing the sphere to be processed. After the sphere to be processed is clamped, under the elastic extrusion of the second return spring, the inner concave surface of the polishing component will fit tightly with the outer surface of the sphere to be processed. The sphere to be processed will rotate 360 ​​degrees along the X-axis direction under the drive of the main driving module. At the same time, the polishing component will also rotate 360 ​​degrees in the opposite direction of the X-axis under the drive of the rotating driving module, so that the polishing component can perform all-round polishing on the outer surface of the sphere to be processed during the movement, thereby improving the polishing accuracy and polishing quality.

[0021] Furthermore, the traction module includes an L-shaped bracket fixed on a fixed base, a traction cylinder is installed on the L-shaped bracket, a piston rod of the traction cylinder passes through the L-shaped bracket, and a front end of the piston rod is fixedly connected to a traction socket.

[0022] Through the above technical scheme, the traction module is mainly used to control the contact state between the polishing module and the sphere to be processed. When the polishing process is completed, the piston rod of the traction cylinder will drive the traction card seat to extend forward. At this time, the rotation drive module will also drive the polishing module to rotate to a horizontal state, and make the fixed rod just engage in the slot of the traction card seat. Then the piston rod of the traction cylinder will drive the traction card seat to retract backward. At this time, the traction card seat will pull the entire fixed rod and the polishing assembly backward through the limit ring, so that the polishing assembly is out of contact with the sphere to be processed, thereby facilitating the unloading of the sphere to be processed; further, when the next sphere to be processed is placed in place, the piston rod of the traction cylinder will drive the traction card seat to extend forward, so that the polishing assembly is in contact with the sphere to be processed. When the rotation drive module starts working in the opposite direction, the fixed rod is disengaged from the traction card seat, and the traction card seat will also quickly reset automatically. In this process, the operator only needs to complete the loading and unloading of the sphere to be processed without performing other operations.

[0023] Furthermore, the polishing liquid adding module includes a liquid storage tank installed on the top of the main driving module, a liquid pump is installed on the top of the liquid storage tank, and a water outlet of the liquid pump is connected to a guide pipe.

[0024] Through the above technical solution, polishing liquid is stored in the liquid storage tank. During the polishing process, the liquid pump will work intermittently according to the set program, extract the polishing liquid in the liquid storage tank, and then transport it to the nozzle position at the other end through the guide pipe, and then let it drip naturally onto the surface of the sphere to be processed, thereby completing the intermittent polishing liquid addition work. In addition, the guide pipe is a universal bend pipe made of metal, and the position of the nozzle can be adjusted according to actual needs.

[0025] The beneficial effects of the present invention are as follows: (1) The present invention can quickly complete the clamping and fixing and disassembly of the ball to be processed by designing a clamping and fixing module, a top module, a polishing module and a pulling module. The manual operation only needs to sleeve the ball to be processed on the clamping and fixing module, which is not only more time-saving and labor-saving, but also improves the production and processing efficiency; (2) The present invention adopts a clamping structure in which multiple sets of rotating clamp arms expand outward synchronously, which can not only realize the clamping and fixing function, but also realize the automatic centering function, so that the central axis of the ball to be processed and the central axis of the fixed column are located on the same straight line, thereby ensuring the stability of the ball to be processed during the subsequent rotation process, and also ensuring the subsequent polishing quality and polishing accuracy; (3) The present invention designs a main drive module and a rotary drive module. The ball to be processed will rotate 360 ​​degrees along the X-axis direction under the drive of the main drive module, and the polishing component will also rotate 360 ​​degrees in the opposite direction of the X-axis under the drive of the rotary drive module, so that the polishing component can perform all-round polishing on the outer surface of the ball to be processed during the movement, thereby improving the polishing accuracy and polishing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a first perspective structural diagram of the present invention;

[0027] Figure 2 It is a second viewing angle structural diagram of the present invention;

[0028] Figure 3 It is a front view of the present invention;

[0029] Figure 4 It is a right side view of the top module of the present invention;

[0030] Figure 5 yes Figure 4 Middle AA section view;

[0031] Figure 6 yes Figure 5 A partial enlarged view of the middle A;

[0032] Figure 7 yes Figure 5 A partial enlarged view of point B in the middle;

[0033] Figure 8 It is a structural schematic diagram of the clamping and fixing module and the top module of the present invention;

[0034] Fig. 9 It is a structural schematic diagram of the clamping and fixing module of the present invention;

[0035] Fig.10 yes Fig. 9 A partial enlarged view of point C in the middle;

[0036] Fig.11 It is a right side view of the clamping and fixing module of the present invention;

[0037] Fig.12 yes Fig.11 Middle BB section view;

[0038] Fig.13 is a structural schematic diagram of a rotation drive module of the present invention;

[0039] Fig.14 yes Fig.13 A partial enlarged view of point D in the middle;

[0040] Fig.15 It is a structural schematic diagram of the polishing module of the present invention.

[0041] Figure numerals: 1, fixed base; 2, main drive module; 201, main box; 202, main drive motor; 203, mounting plate; 3, clamping and fixing module; 301, connecting plate; 302, fixing column; 303, first fixing screw; 304, H-shaped bracket; 305, end sleeve; 306, contraction groove; 307, rotating clamp arm; 308, anti-skid pad; 309, first connecting rod; 310, rotating bracket; 311, second connecting rod; 312, rotating seat; 313, guide rod; 314, first return spring; 315, limit sleeve; 4, top module; 401, support platform; 402, top cylinder; 403, rotating bearing; 404, rotating Turntable; 5. Rotary drive module; 501. Support frame; 502. Positioning ring; 503. Positioning bearing; 504. Gear ring; 505. Servo motor; 506. Driving gear; 6. Polishing module; 601. Fixed bracket; 602. Fixed rod; 603. Limiting ring; 604. Fixed plate; 605. Second reset spring; 606. Mounting seat; 607. Polishing assembly; 608. Second fixing screw; 7. Traction module; 701. L-shaped bracket; 702. Traction cylinder; 703. Traction card seat; 8. Polishing liquid adding module; 801. Liquid storage tank; 802. Liquid pump; 803. Guide pipe; 9. Liquid collecting tank; 10. Sphere to be processed. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] like Figure 1-Figure 15As shown, a ball valve surface polishing mechanism of the present embodiment includes a fixed base 1, a main driving module 2 is installed on one side of the top of the fixed base 1, the main driving module 2 includes a main box 201 fixed to one side of the top of the fixed base 1, a main driving motor 202 is installed in the main box 201, the output shaft of the main driving motor 202 passes through the main box 201, and is fixedly connected to a mounting disk 203. During processing, the main driving motor 202 can drive the mounting disk 203 to rotate synchronously through its output shaft, and then can drive the clamping and fixing module 3 connected thereto to rotate, and finally drive the ball 10 to be processed to rotate synchronously, so as to cooperate with the polishing module 6 to perform rotational polishing on the ball 10 to be processed.

[0044] like Figure 1-Figure 12As shown, a clamping and fixing module 3 is fixedly installed on the output end of the main driving module 2, and a ball 10 to be processed is clamped and fixed on the clamping and fixing module 3. The clamping and fixing module 3 includes a connecting disk 301 fixed on the mounting disk 203, and the connecting disk 301 is fixed to the mounting disk 203 by multiple first fixing screws 303. A fixing column 302 is fixedly connected to one side of the connecting disk 301, and a plurality of evenly distributed H-shaped brackets 304 are fixedly connected to the end surface of the fixing column 302 away from the connecting disk 301. The other ends of the multiple H-shaped brackets 304 are fixedly connected to end sleeves 305, and each H-shaped bracket 304 is provided with two contraction grooves 306, and a rotating clamp arm 307 is rotatably connected in each contraction groove 306 (the two rotating clamp arms 307 on each H-shaped bracket 304 are a group), and the contact portion of each rotating clamp arm 307 with the ball 10 to be processed is fixedly connected to an anti-slip pad 308, and each group of rotating clamp arms 307 is rotatably connected to a first connecting rod 309. , each first connecting rod 309 is fixedly connected with a rotating bracket 310, each rotating bracket 310 is rotatably connected with a second connecting rod 311, and the other ends of the plurality of second connecting rods 311 are rotatably connected with a rotating seat 312, one side of the rotating seat 312 is fixedly connected with a guide rod 313, the outer wall of the guide rod 313 is sleeved with a first return spring 314, and a limited sleeve 315 is fixedly connected to the inner end surface of the fixed column 302. The clamping and fixing module 3 is used for clamping and fixing the ball 10 to be processed, so as to cooperate with the polishing module 6 to perform rotational polishing processing on it later. During processing, the ball 10 to be processed can be directly passed through the end sleeve 305 and sleeved on the appropriate position outside the plurality of H-shaped brackets 304. When the polishing module 6 is slowly released by the traction module 7, the inner concave surface of the polishing assembly 607 thereof will slowly fit with the spherical surface of the ball 10 to be processed. In this process, through the slow contact between the two, the clamping position of the ball 10 to be processed can also be slowly and automatically adjusted;In addition, when the rotary ejector pin 404 of the ejection module 4 is inserted into the end sleeve 305, the conical inclined surface of the rotary ejector pin 404 will slowly press against the multiple rotary clamping arms 307 in contact with it, and make the multiple rotary clamping arms 307 rotate on the H-shaped bracket 304, and then use the multiple rotary clamping arms 307 to expand outwards and clamp the inner wall of the ball 10 to be processed. Since each group of rotary clamping arms 307 is rotatably connected with the first connecting rod 309, and both ends of the first connecting rod 309 are respectively rotatably connected with the corresponding rotary clamping arms 307, when the rotary clamping arms 307 that are in contact with the rotary ejector pin 404 rotate, they will also be rotated by The multiple first connecting rods 309 synchronously drive the other multiple rotating clamping arms 307 to expand outward, so that the multiple sets of rotating clamping arms 307 can be used to evenly clamp various parts on both sides of the inner wall of the sphere 10 to be processed to ensure the stability and reliability of clamping and fixing. At the same time, when the multiple sets of rotating clamping arms 307 synchronously expand outward to clamp the sphere 10 to be processed, the automatic centering function can also be realized, so that the central axis of the sphere 10 to be processed and the central axis of the fixed column 302 are located on the same straight line, so that the stability of the sphere 10 to be processed in the subsequent rotation process can be ensured, and the subsequent polishing quality and polishing accuracy can also be ensured. ;

[0045] like Fig.12 As shown, a through hole is opened on the inner end face of the fixed column 302, and the guide rod 313 passes through the through hole and the limit sleeve 315 and extends to the inside of the fixed column 302. Under normal conditions, due to the elastic action of the first return spring 314, the first return spring 314 will push the rotating seat 312 to one side, so that the rotating seat 312 can drive the multiple first connecting rods 309 to move toward the top module 4 through the multiple second connecting rods 311, and then can drive the multiple rotating clamping arms 307 to shrink in the corresponding shrinkage grooves 306, so that the sphere 10 to be processed can be conveniently and quickly sleeved on the clamping and fixing module 3. After the processing is completed, it is also convenient to quickly unload the sphere 10 to be processed.

[0046] like Figure 1-Figure 8As shown, a top module 4 corresponding to the clamping and fixing module 3 is fixedly installed on the other side of the top of the fixed base 1; the top module 4 includes a support platform 401 fixed on the other side of the top of the fixed base 1, and a horizontally placed top cylinder 402 is fixedly installed on the support platform 401. One end of the piston rod of the top cylinder 402 is sleeved with a rotating bearing 403, and a rotating ejector pin 404 is installed on the outer ring of the rotating bearing 403. The top module 4 is mainly used to cooperate with the clamping and fixing module 3 to complete the rapid clamping and fixing of the ball 10 to be processed. The piston rod of the top cylinder 402 By extending, the rotating ejector pin 404 can be driven to contact and squeeze the multiple rotating clamping arms 307, so that the multiple rotating clamping arms 307 can be quickly unfolded, thereby completing the rapid clamping and fixing of the ball 10 to be processed. In addition, since a rotating bearing 403 is installed between the piston rod of the push cylinder 402 and the rotating ejector pin 404, when the rotating ejector pin 404 is pressed against the multiple rotating clamping arms 307, it can also rotate synchronously with the clamping and fixing module 3 during the polishing process. After polishing is completed, the push cylinder 402 will drive the rotating ejector pin 404 to automatically reset.

[0047] The push cylinder 402 can drive the rotating ejector pin 404 to move synchronously through the extension and retraction of the piston rod. When clamping the sphere 10 to be processed, the rotating ejector pin 404 can be used to synchronously press against the multiple rotating clamping arms 307 in contact with it, so that the multiple rotating clamping arms 307 can be synchronously rotated and opened, thereby clamping and fixing the sphere 10 to be processed from the inside.

[0048] like Figure 13-14 As shown, a rotation drive module 5 is fixedly installed on one side of the top of the fixed base 1 close to the main drive module 2, and the rotation drive module 5 includes a support frame 501 fixed on the fixed base 1, a positioning ring 502 is fixedly connected to the top of the support frame 501, a positioning bearing 503 is installed on one side of the outer wall of the positioning ring 502, and a gear ring 504 is fixedly installed on the outer ring of the positioning bearing 503, and a servo motor 505 is installed at the center position of the bottom of the support frame 501. The output end of the servo motor 505 is fixedly connected to a driving gear 506 meshing with the gear ring 504. The rotation drive module 5 is mainly used to drive the polishing module 6 to perform circular motion. When the servo motor 505 is working, it can drive the driving gear 506 to rotate synchronously through its output shaft. When the driving gear 506 rotates, it can mesh with the gear ring 504, thereby driving the gear ring 504 and the polishing module 6 on the gear ring 504 to rotate synchronously, so as to facilitate the polishing module 6 to perform 360-degree all-round polishing of the outer surface of the sphere 10 to be processed.

[0049] like Fig.15As shown, a polishing module 6 is fixedly installed on the rotation driving module 5, and the polishing module 6 includes a fixed bracket 601 fixed on the gear ring 504, a fixed rod 602 passes through the fixed bracket 601, a limit ring 603 is fixedly installed on the top of the fixed rod 602, a fixed plate 604 is fixedly connected to the bottom end of the fixed rod 602, a second return spring 605 is sleeved on the outer wall of the fixed rod 602, a detachable mounting seat 606 is installed at the bottom of the fixed plate 604, a polishing assembly 607 is rotatably connected to the bottom of the fixed plate 604, and the mounting seat 606 is fixed to the fixed plate 604 by a plurality of second fixing screws 608. The polishing module 6 is used Regarding the polishing process of the sphere 10 to be processed, after the sphere 10 to be processed is clamped, under the elastic squeezing action of the second return spring 605, the inner concave surface of the polishing assembly 607 will fit tightly with the outer surface of the sphere 10 to be processed, and the sphere 10 to be processed will rotate 360 ​​degrees along the X-axis direction under the drive of the main driving module 2. At the same time, the polishing assembly 607 will also rotate 360 ​​degrees in the opposite direction of the X-axis under the drive of the rotating driving module 5, so that the polishing assembly 607 can perform all-round polishing on the outer surface of the sphere 10 to be processed during the movement, thereby improving the polishing accuracy and polishing quality.

[0050] like Fig.13 As shown, a traction module 7 corresponding to the polishing module 6 is installed on one side of the top rear end of the fixed base 1; the traction module 7 includes an L-shaped bracket 701 fixed on the fixed base 1, and a traction cylinder 702 is installed on the L-shaped bracket 701. The piston rod of the traction cylinder 702 passes through the L-shaped bracket 701, and the front end of the piston rod is fixedly connected to a traction card seat 703. The traction module 7 is mainly used to control the contact state between the polishing module 6 and the ball 10 to be processed. When the polishing process is completed, the piston rod of the traction cylinder 702 will drive the traction card seat 703 to extend forward. At this time, the rotation drive module 5 will also drive the polishing module 6 to rotate to a horizontal state, and make the fixed rod 602 just fit in the card slot of the traction card seat 703, and then the traction cylinder 702 The piston rod will drive the traction seat 703 to retract backwards. At this time, the traction seat 703 will pull the entire fixed rod 602 and the polishing assembly 607 backwards through the limit ring 603, so that the polishing assembly 607 is out of contact with the sphere 10 to be processed, thereby facilitating the unloading of the sphere 10 to be processed; further, when the next sphere 10 to be processed is placed in place, the piston rod of the traction cylinder 702 will drive the traction seat 703 to extend forward, so that the polishing assembly 607 is in contact with the sphere 10 to be processed. When the rotation drive module 5 starts to work in the opposite direction, the fixed rod 602 is disengaged from the traction seat 703, and the traction seat 703 will also quickly and automatically reset. In this process, the operator only needs to complete the loading and unloading of the sphere 10 to be processed, and no other operations are required.

[0051] like Figure 1-Figure 3As shown, a polishing liquid adding module 8 for automatically adding polishing liquid to the sphere 10 to be processed is provided on the top of the main driving module 2. The polishing liquid adding module 8 includes a liquid storage tank 801 installed on the top of the main driving module 2. A liquid pump 802 is installed on the top of the liquid storage tank 801. The water outlet of the liquid pump 802 is connected to a guide pipe 803. Polishing liquid is stored in the liquid storage tank 801. During polishing processing, the liquid pump 802 will work intermittently according to the set program, extract the polishing liquid in the liquid storage tank 801, and then transport it to the nozzle position at the other end through the guide pipe 803, and then let it drip naturally onto the surface of the sphere 10 to be processed, thereby completing the intermittent polishing liquid addition work. In addition, the guide pipe 803 is a universal bend pipe made of metal, and the position of the nozzle can be adjusted according to actual needs.

[0052] The fixed base 1 is also provided with a liquid collecting tank 9 located directly below the ball 10 to be processed, for collecting dripping polishing liquid.

[0053] The working principle of this embodiment is as follows. During processing, the operator directly passes the ball 10 to be processed through the end sleeve 305 and sleeves it on the appropriate position outside the multiple H-shaped brackets 304. When the polishing module 6 is slowly released by the traction module 7, the inner concave surface of its polishing assembly 607 will slowly fit with the spherical surface of the ball 10 to be processed. In this process, through the slow contact between the two, the clamping position of the ball 10 to be processed can also be slowly automatically adjusted. At the same time, when the rotating ejector pin 404 of the ejection module 4 is inserted into the end sleeve 305, the conical inclined surface of the rotating ejector pin 404 will slowly press against the multiple rotating clamp arms 307 in contact with it, and make the multiple rotating clamp arms 307 rotate on the H-shaped bracket 304, and then use the multiple rotating clamp arms 307 to expand outwards and clamp the inner wall of the ball 10 to be processed. At this time, the clamping work is completed;

[0054] Then, the ball 10 to be processed will rotate 360 ​​degrees along the X-axis direction under the drive of the main driving module 2. At the same time, the polishing assembly 607 will also rotate 360 ​​degrees in the opposite direction of the X-axis under the drive of the rotation driving module 5, so that the polishing assembly 607 can perform all-round polishing on the outer surface of the ball 10 to be processed during the movement.

[0055] When the polishing process is completed, the piston rod of the traction cylinder 702 will drive the traction seat 703 to extend forward. At this time, the rotating drive module 5 will also drive the polishing module 6 to rotate to a horizontal state, and make the fixed rod 602 just fit in the slot of the traction seat 703. Then the piston rod of the traction cylinder 702 will drive the traction seat 703 to retract backward. At this time, the traction seat 703 will pull the entire fixed rod 602 and the polishing assembly 607 backward through the limit ring 603, so that the polishing assembly 607 is out of contact with the sphere 10 to be processed, and the operator can start unloading at this time.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A ball valve surface polishing mechanism, comprising a fixed base (1), characterized in that: A main drive module (2) is installed on one side of the top of the fixed base (1), the main drive module (2) comprising a main box (201) fixed to one side of the top of the fixed base (1), a main drive motor (202) is installed in the main box (201), an output shaft of the main drive motor (202) passes through the main box (201) and is fixedly connected to a mounting plate (203); A clamping and fixing module (3) is fixedly mounted on the output end of the main driving module (2), the clamping and fixing module (3) comprising a connecting disk (301) fixed on the mounting disk (203), the connecting disk (301) being fixed to the mounting disk (203) by means of a plurality of first fixing screws (303), a fixing column (302) being fixedly connected to one side of the connecting disk (301), a plurality of evenly distributed H-shaped brackets (304) being fixedly connected to the end surface of the fixing column (302) away from the connecting disk (301), an end sleeve (305) being fixedly connected to the other end of the plurality of H-shaped brackets (304), each of the H-shaped brackets (304) being provided with two contraction grooves (306), and a rotating clamp (306) being rotatably connected in each of the contraction grooves (306). arms (307), the portion of each rotating clamp arm (307) that contacts the ball (10) to be processed is fixedly connected to an anti-slip pad (308), each group of rotating clamp arms (307) is rotatably connected to a first connecting rod (309), each first connecting rod (309) is fixedly connected to a rotating bracket (310), each rotating bracket (310) is rotatably connected to a second connecting rod (311), the other ends of a plurality of second connecting rods (311) are rotatably connected to a rotating seat (312), one side of the rotating seat (312) is fixedly connected to a guide rod (313), an outer wall of the guide rod (313) is sleeved with a first return spring (314), and an inner end surface of the fixed column (302) is fixedly connected to a limiting sleeve (315); The sphere (10) to be processed is clamped and fixed on the clamping and fixing module (3), and a top-mounting module (4) corresponding to the clamping and fixing module (3) is fixedly installed on the other side of the top of the fixing base (1); A rotation drive module (5) is fixedly mounted on one side of the top of the fixed base (1) close to the main drive module (2), the rotation drive module (5) comprising a support frame (501) fixed on the fixed base (1), a positioning ring (502) is fixedly connected to the top of the support frame (501), a positioning bearing (503) is mounted on one side of the outer wall of the positioning ring (502), a gear ring (504) is fixedly mounted on the outer ring of the positioning bearing (503), a servo motor (505) is mounted at the center of the bottom of the support frame (501), and a driving gear (506) meshing with the gear ring (504) is fixedly connected to the output end of the servo motor (505); A polishing module (6) is fixedly mounted on the rotation driving module (5), and the polishing module (6) comprises a fixing bracket (601) fixed on the gear ring (504), a fixing rod (602) passes through the fixing bracket (601), a limiting ring (603) is fixedly mounted on the top of the fixing rod (602), a fixing plate (604) is fixedly connected to the bottom end of the fixing rod (602), a second return spring (605) is sleeved on the outer wall of the fixing rod (602), a detachable mounting seat (606) is mounted on the bottom of the fixing plate (604), a polishing assembly (607) is rotatably connected to the bottom of the fixing plate (604), and the mounting seat (606) is fixed to the fixing plate (604) by a plurality of second fixing screws (608); A traction module (7) corresponding to the polishing module (6) is installed on one side of the top rear end of the fixed base (1); the traction module (7) comprises an L-shaped bracket (701) fixed on the fixed base (1), a traction cylinder (702) is installed on the L-shaped bracket (701), a piston rod of the traction cylinder (702) passes through the L-shaped bracket (701), and a traction clamping seat (703) is fixedly connected to the front end of the piston rod; A polishing liquid adding module (8) for automatically adding polishing liquid to the sphere (10) to be processed is provided on the top of the main driving module (2), and a liquid collecting tank (9) located directly below the sphere (10) to be processed is also provided on the fixed base (1) for collecting dripping polishing liquid.

2. The ball valve surface polishing mechanism according to claim 1, characterized in that: A through hole is provided on the inner end surface of the fixing column (302), and the guide rod (313) passes through the through hole and the limiting sleeve (315) and extends toward the inside of the fixing column (302).

3. The ball valve surface polishing mechanism according to claim 1, characterized in that: The jacking module (4) comprises a support platform (401) fixed to the other side of the top of the fixed base (1), a horizontally placed jacking cylinder (402) being fixedly mounted on the support platform (401), a rotary bearing (403) being sleeved on one end of a piston rod of the jacking cylinder (402), and a rotary ejector pin (404) being mounted on the outer ring of the rotary bearing (403).

4. The ball valve surface polishing mechanism according to claim 3, characterized in that: The push-to-pull cylinder (402) can drive the rotating ejector pin (404) to move synchronously by extending and retracting the piston rod. When clamping the sphere (10) to be processed, the rotating ejector pin (404) can be used to synchronously press against a plurality of rotating clamping arms (307) in contact with the rotating ejector pin (404), so that the plurality of rotating clamping arms (307) can be synchronously rotated and opened, thereby clamping and fixing the sphere (10) to be processed from the inside.

5. The ball valve surface polishing mechanism according to claim 1, characterized in that: The polishing liquid adding module (8) comprises a liquid storage tank (801) installed on the top of the main driving module (2), a liquid pump (802) is installed on the top of the liquid storage tank (801), and a water outlet of the liquid pump (802) is connected to a guide pipe (803).

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