A collision-free axial flow check valve combined disc processing device and method

Abstract

The present invention discloses a collision-free axial flow check valve combined valve disc processing equipment and method, which relates to the field of surfacing equipment, including a workbench and a spindle fixed on the workbench, a mounting plate rotatably arranged on the spindle, a driving device for driving the mounting plate to rotate intermittently arranged on the workbench, a clamping device for clamping the valve disc handle arranged on the mounting plate, a surfacing device for surfacing the valve disc is also fixedly arranged on the workbench, and a driving device for driving the clamping device to rotate is arranged on one side of the surfacing device. The present application has the effect of reducing the possibility of defects in the surfacing part of the valve disc and improving the quality of the finished valve disc.

Description

Technical Field

[0001] The invention relates to the field of surfacing equipment, and in particular to a collision-free axial flow check valve combined valve disc processing equipment and method. Background Art

[0002] Axial flow check valve is a valve device installed in the pipeline system. It is favored by engineering design because of its strong flow capacity, small flow resistance, no jamming when opening and closing, and reliable sealing. According to the valve core structure, axial flow check valves can be divided into ring disc type and disc type. The working principle of axial flow check valve is based on the pressure difference of the fluid. When the flow direction of the medium is the same as that of the check valve, the medium passes along the flow channel of the valve body and the valve body opens; but when the flow direction of the medium is opposite to that of the check valve, the medium will close the valve body to prevent the backflow of the medium. The valve body usually adopts a disc-shaped or conical structure, and its opening and closing action is controlled by the pressure of the medium flow. The valve disc is the core component of the axial flow check valve. When the fluid flows in the opposite direction due to pressure difference or other reasons, the valve disc will automatically close against the valve seat to prevent the fluid from flowing back, thereby preventing the reverse direction of the fluid flow from having an adverse effect on the system. This function is crucial to protect the safe and stable operation of the system and can prevent the equipment from being impacted by the backflow.

[0003] In the related art, a Chinese invention patent with announcement number CN104847932A discloses an axial flow check valve, including a valve body, a valve stem, a valve seat, a valve disc, a valve sleeve, a bushing, an anti-dropout locking nut, a stop gasket, a closed locking nut, and a spring device; the anti-dropout locking nut is divided into a first anti-dropout locking nut and a second anti-dropout locking nut; the stop gasket is divided into a first stop gasket and a second stop gasket; the closed locking nut is divided into a first closed locking nut and a second closed locking nut; a spring device is connected between the valve disc and the valve sleeve, the outer periphery of one end of the valve stem is connected to the valve disc, and the contact distance between the valve disc and the valve seat determines the opening and closing of the axial flow check valve.

[0004] Regarding the above-mentioned related technologies, since the valve disc often contacts or collides with the valve seat during the operation of the axial flow check valve, in order to improve the wear resistance, high temperature resistance, corrosion resistance, and abrasion resistance of the valve disc, thereby extending the service life, during the processing of the valve disc, the annular part used to contact the valve seat is usually filled with a surfacing process, and then the surfacing part is polished until it meets the requirements of size, surface roughness, etc. The traditional surfacing process is that the welder holds the welding gun to surfacing the part that needs to be welded. The welder holds the welding gun for a long time. During the continuous work process, due to arm fatigue, the welding gun head may shake or vibrate, which increases the possibility of defects in the surfacing part of the valve disc and affects the quality of the finished valve disc. Summary of the invention

[0005] In order to reduce the possibility of defects in the valve disc surfacing area and improve the quality of the valve disc finished product, the present application provides a collision-free axial flow check valve combined valve disc processing equipment and method.

[0006] In the first aspect, the present application provides a collision-free axial flow check valve combined disc processing device adopts the following technical solution:

[0007] A collision-free axial flow check valve combined valve disc processing equipment, including a workbench and a main shaft fixed on the workbench, a mounting plate is rotatably arranged on the main shaft, a driving device for driving the mounting plate to rotate intermittently is arranged on the workbench, a clamping device for clamping the valve disc handle is arranged on the mounting plate, a surfacing device for surfacing the valve disc is also fixedly arranged on the workbench, and a driving device for driving the clamping device to rotate is arranged on one side of the surfacing device.

[0008] By adopting the above technical solution, the head of the valve disc is placed upward on the clamping device, so that the clamping device clamps the handle of the valve disc. When the driving device can rotate the clamping device holding the valve disc to under the welding gun of the cladding equipment through the mounting plate, the driving device drives the clamping device to rotate slowly, so that the welding gun can perform cladding on the annular part of the valve disc head that needs to be cladding, and the welding gun can stably cladding the valve disc, thereby reducing the possibility of shaking or jittering of the welding gun, thereby reducing the possibility of defects in the cladding part of the valve disc, and improving the quality of the finished valve disc.

[0009] Preferably, a mounting hole is provided on the top surface of the mounting plate, the clamping device includes a clamping tube for placing the valve disc, the clamping tube is rotatably arranged in the mounting hole, a plurality of vertical grooves connected with the inner side of the clamping tube are provided on the top outer surface of the clamping tube, the vertical grooves are all connected with the top end surface of the clamping tube, the thickness of the top outer wall of the clamping tube increases linearly from bottom to top, a sleeve is provided on the outer sleeve of the clamping tube, and the sleeve is threadedly connected to the clamping tube.

[0010] By adopting the above technical solution, the clamping tube is rotatably arranged in the mounting hole. Since the sleeve is threadedly connected to the clamping tube, when the clamping tube is fixed and the sleeve is rotated, the sleeve can move upward relative to the clamping tube while rotating. Since the thickness of the outer wall at the top of the clamping tube increases linearly from bottom to top, as the sleeve gradually moves upward, the top of the sleeve collides with the outer wall at the top of the clamping tube. Under the action of the vertical groove, the top of the clamping tube can be retracted inward, so that the clamping tube can clamp the handle of the valve disc.

[0011] Preferably, an annular groove is provided on the inner wall of the mounting hole, and a transverse hole connected to the annular groove is provided on the end surface of the mounting plate. The clamping device also includes a locking mechanism, which includes a locking gear fixedly connected to the clamping tube, a pin rod with one end which can be inserted between the teeth of the locking gear is slidably arranged in the transverse hole, a strip hole is provided on the bottom wall of the transverse hole, a limiting sliding rod is fixedly connected to the pin rod, a first spring is provided in the strip hole, one end of the first spring is fixed to the limiting sliding rod, and the other end of the first spring is fixed to the end wall of the strip hole close to the locking gear. On the workbench, an adjusting gear is fixedly connected to the sleeve, a control device is arranged on the workbench, the control device includes a positive rotation mechanism, the positive rotation mechanism includes a first arc-shaped bar which can push the pin rod into the transverse hole, the first arc-shaped bar is fixedly connected to the workbench, the first arc-shaped bar is located on the side of the clamping device away from the main shaft, one end of the first arc-shaped bar is provided with an inclined surface which is convenient for pushing the pin rod into the transverse hole, a first arc-shaped rack which can mesh with the adjusting gear is fixedly connected to the top surface of the first arc-shaped bar, and the thickness of the first arc-shaped rack is greater than the thickness of the adjusting gear.

[0012] By adopting the above technical solution, the first spring can push the pin rod to the side away from the locking gear, so that one end of the pin rod can be located outside the transverse hole. When the driving device drives the mounting plate to rotate and the clamping device with the valve disc placed thereon is rotated to the surfacing equipment, when the pin rod conflicts with the inclined surface of the first arc-shaped bar, the adjusting gear engages with the lower part of the first arc-shaped rack. As the mounting plate continues to rotate, the pin rod is pushed into the transverse hole by the first arc-shaped bar, so that one end of the pin rod is automatically inserted between the teeth of the locking gear, thereby hindering the rotation of the clamping tube. Since the thickness of the first arc-shaped rack is greater than the thickness of the adjusting gear, during the rotation of the mounting plate, the first arc-shaped rack can drive the adjusting gear to rotate forward, and the adjusting gear moves upward so that the clamping tube automatically clamps the valve disc, so that when the valve disc reaches the position of the surfacing equipment, the valve disc can be stably located on the clamping device, thereby improving the quality of the valve disc surfacing.

[0013] Preferably, the control device also includes a reverse rotation mechanism, which includes a second arc-shaped bar that can push the pin rod into the transverse hole, one end of the second arc-shaped bar is provided with an inclined surface that facilitates pushing the pin rod into the transverse hole, a connecting plate is fixedly connected to the main shaft, and an end of the connecting plate away from the main shaft is fixedly connected to a second arc-shaped rack that can mesh with the adjusting gear, the second arc-shaped rack is located on the side of the clamping device close to the main shaft, and the thickness of the second arc-shaped rack is greater than the thickness of the adjusting gear.

[0014] By adopting the above technical solution, when the valve disc is surfacing, the driving device drives the mounting plate to rotate and pass through the reverse rotation mechanism. When the pin rod conflicts with the inclined surface of the second arc-shaped bar, the adjusting gear meshes with the top of the second arc-shaped rack. The second arc-shaped bar pushes the pin rod into the transverse hole through the inclined surface, so that one end of the pin rod is inserted between the teeth of the locking gear, thereby hindering the rotation of the clamping tube. Since the thickness of the first arc-shaped rack is greater than the thickness of the adjusting gear, and the adjusting gear is located at the upper part of the second arc-shaped rack at this time, during the rotation of the mounting plate, the first arc-shaped rack can drive the adjusting gear to rotate in the opposite direction, and the adjusting gear moves downward so that the clamping tube automatically loosens the valve disc, thereby facilitating the removal of the valve disc that has been surfacing.

[0015] Preferably, the driving device includes a driving motor slidably arranged on the workbench, a driving gear that can mesh with the adjusting gear is fixedly connected to the output shaft of the driving motor, a baffle is arranged on the side of the driving motor away from the mounting plate, a second spring for pushing the driving motor toward the side close to the mounting plate is arranged between the baffle and the driving motor, a hydraulic damping rod is arranged between the baffle and the driving motor, two ends of the hydraulic damping rod are respectively fixedly connected to the baffle and the driving motor, an attraction block is fixedly connected to the driving motor, An electromagnet for generating attraction for the attraction block is fixedly connected to the baffle, a first control switch for controlling the on and off power of the electromagnet is also provided on the workbench, a block for preventing the limit slide rod from sliding toward the direction close to the main shaft is also fixedly connected to the workbench, when the valve flap is in the surfacing position, the pin rod triggers the first control switch, a mounting frame is fixedly connected to the workbench, a second control switch for controlling the surfacing equipment is fixedly connected to the mounting frame, and when the driving gear is engaged with the adjusting gear, the driving motor triggers the second control switch.

[0016] By adopting the above technical solution, the driving device drives the mounting plate to rotate intermittently. When the clamping device on the mounting plate drives the valve disc to rotate to the surfacing position, the pin rod is prevented from sliding into the transverse hole under the blocking action of the block, so that one end of the pin rod is kept outside the transverse hole, so that the pin rod can trigger the first control switch. At this time, the electrical circuit of the electromagnet is disconnected. Under the action of the second spring and the hydraulic damping rod, the driving motor drives the driving gear to automatically and slowly approach the adjusting gear until it is fully meshed with the driving gear and the adjusting gear. At this time, the driving motor automatically triggers the second control switch, and the driving gear slowly drives the adjusting gear to rotate, so that the surfacing equipment automatically performs surfacing on the valve disc. After the time required for completing the surfacing, the driving device drives the mounting plate to rotate again, and the pin rod automatically disengages from the first control switch. At this time, the electromagnet electrical circuit is turned on, so that the electromagnet restores the attraction of the attraction block, thereby pulling the driving motor away from the mounting plate. When the driving gear disengages from the adjusting gear, the driving motor automatically releases the triggering of the second control switch, so that the surfacing equipment automatically stops surfacing on the valve disc.

[0017] Preferably, a slide rail is fixedly connected to the workbench, a slider is slidably arranged on the slide rail, and the driving motor is fixedly connected to the slider.

[0018] By adopting the above technical solution, the driving motor is fixedly connected to the sliding block, so that the driving motor can slide stably on the workbench.

[0019] Preferably, the mounting plate is a strip plate, and two groups of the clamping devices are arranged on the mounting plate, and the two groups of the clamping devices are respectively arranged at both ends of the mounting plate, and a central hole is opened on the mounting plate, and the main shaft passes through the central hole, and two transverse slide grooves are symmetrically opened on the inner peripheral wall of the central hole, and two grooves are symmetrically opened on the outer side surface of the main shaft, and an anti-sway device is arranged in the transverse slide groove, and the anti-sway device includes a sliding pin which can be inserted into the groove, and the sliding pin is slidably arranged in the transverse slide groove, and the end of the sliding pin close to the main shaft is a ball head, and a third spring is arranged in the transverse slide groove, and the third spring is arranged on the side of the sliding pin away from the main shaft.

[0020] By adopting the above technical solution, when the driving device drives the clamping device on the mounting plate to rotate to the surfacing position, the driving device suspends the driving of the mounting plate. At this time, the transverse slide groove is aligned with the groove. Under the elastic force of the third spring, the ball head end of the sliding pin is inserted into the groove, thereby preventing the mounting plate from continuing to rotate under the action of inertia, so that the valve disc on the clamping device can be more accurately located at the surfacing position.

[0021] Preferably, the driving device includes a driving motor fixedly connected to the workbench, a half gear is fixedly connected to the output shaft of the driving motor, a driving gear that can mesh with the half gear is fixedly connected to the bottom plate of the mounting plate, and the radius of the half gear and the driving gear are equal.

[0022] By adopting the above technical solution, when the driving motor is driven, the half gear on the driving motor can drive the driving gear to slowly rotate half a circle, so that the valve flap placed on the clamping device is rotated from the pick-up and placement position to the surfacing position, and the valve flap that completes the surfacing work is rotated to the pick-up and placement position.

[0023] In a second aspect, the present application provides a method for processing a collision-free axial flow check valve combined disc, which adopts the following technical solution:

[0024] A method for processing a collision-free axial flow check valve combined valve disc comprises the following steps: S1: inserting the handle of the valve disc that has not been subjected to surfacing welding into the top end of a clamping tube; S2: after the valve disc has passed through the forward rotation mechanism, the surfacing equipment and the reverse rotation mechanism in sequence, returning to a pick-and-place position and removing the valve disc; S3: grinding the removed valve disc.

[0025] By adopting the above technical solution, the valve disc returns to the pick-up and placement position after passing through the forward rotation mechanism, cladding equipment and reverse rotation mechanism in sequence, which reduces the possibility of shaking or jittering of the welding gun, thereby reducing the possibility of defects in the cladding part of the valve disc and improving the quality of the finished valve disc.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Place the head of the valve disc upward on the clamping device, so that the clamping device clamps the handle of the valve disc. When the driving device can rotate the clamping device holding the valve disc to the welding gun of the cladding equipment through the mounting plate, the driving device drives the clamping device to rotate slowly, so that the welding gun can perform cladding on the annular part of the valve disc head that needs to be cladding, so that the welding gun can stably cladding the valve disc, thereby reducing the possibility of shaking or jittering of the welding gun, thereby reducing the possibility of defects in the cladding part of the valve disc, and improving the quality of the finished valve disc;

[0028] 2. The first spring can push the pin rod to the side away from the locking gear, so that one end of the pin rod can be located outside the transverse hole. When the driving device drives the mounting plate to rotate and the clamping device with the valve disc placed thereon rotates to the surfacing equipment, when the pin rod conflicts with the inclined surface of the first arc-shaped bar, the adjusting gear meshes with the lower part of the first arc-shaped rack. As the mounting plate continues to rotate, the pin rod is pushed into the transverse hole by the first arc-shaped bar, so that one end of the pin rod is automatically inserted between the teeth of the locking gear, thereby hindering the rotation of the clamping tube. Since the thickness of the first arc-shaped rack is greater than that of the adjusting gear, during the rotation of the mounting plate, the first arc-shaped rack can drive the adjusting gear to rotate forward, and the adjusting gear moves upward so that the clamping tube automatically clamps the valve disc, so that when the valve disc reaches the position of the surfacing equipment, the valve disc can be stably located on the clamping device, thereby improving the surfacing quality of the valve disc.

[0029] 3. The driving device drives the mounting plate to rotate intermittently. When the clamping device on the mounting plate drives the valve disc to rotate to the surfacing position, the pin rod is prevented from sliding into the transverse hole under the blocking action of the block, so that one end of the pin rod remains outside the transverse hole, so that the pin rod can trigger the first control switch. At this time, the electrical circuit of the electromagnet is disconnected. Under the action of the second spring and the hydraulic damping rod, the driving motor drives the driving gear to automatically and slowly approach the adjusting gear until it is fully meshed with the driving gear and the adjusting gear. At this time, the driving motor automatically triggers the second control switch, and the driving gear slowly drives the adjusting gear to rotate, so that the surfacing equipment automatically performs surfacing on the valve disc. After the time required for completing the surfacing, the driving device drives the mounting plate to rotate again, and the pin rod automatically disengages from the first control switch. At this time, the electromagnet electrical circuit is turned on, so that the electromagnet resumes the attraction to the attraction block, thereby pulling the driving motor away from the mounting plate. When the driving gear disengages from the adjusting gear, the driving motor automatically releases the triggering of the second control switch, so that the surfacing equipment automatically stops surfacing on the valve disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the valve disc processing equipment in the embodiment of the present application.

[0031] Figure 2 It is a cross-sectional view of the mounting plate and the clamping device in the embodiment of the present application.

[0032] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0033] Figure 4 It is a schematic diagram of the structure of the driving device in the embodiment of the present application.

[0034] Explanation of the reference numerals: 1. workbench; 11. stopper; 12. vertical plate; 2. spindle; 21. groove; 3. mounting plate; 31. center hole; 311. horizontal slide groove; 32. mounting hole; 321. annular groove; 33. horizontal hole; 331. strip hole; 4. driving device; 41. driving motor; 42. half gear; 43. driving gear; 5. clamping device; 51. clamping tube; 511. vertical groove; 52. sleeve; 53. locking mechanism; 531. locking gear; 532. pin rod; 533. limit slide rod; 534. first spring; 54. adjusting gear; 6. driving device; 61. driving gear Motor; 611, attraction block; 62, slide rail; 63, slider; 64, driving gear; 65, baffle; 66, second spring; 67, hydraulic damping rod; 68, electromagnet; 69, first control switch; 7, control device; 71, forward rotation mechanism; 711, first arc-shaped bar; 712, first arc-shaped rack; 72, reverse rotation mechanism; 721, second arc-shaped bar; 722, second arc-shaped rack; 723, connecting plate; 8, anti-sway device; 81, sliding pin; 82, third spring; 9, surfacing equipment; 91, bracket; 92, welding gun; 93, mounting bracket; 94, second control switch; 100, valve disc. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The embodiment of the present application discloses a collision-free axial flow check valve combined valve disc processing device. Figure 1 and Figure 2 As shown, the valve disc 100 processing equipment includes a workbench 1, a spindle 2, a mounting plate 3, a driving device 4, a clamping device 5, a driving device 6, a control device 7 and an anti-sway device 8. The spindle 2 is vertically fixed to the middle of the top surface of the workbench 1. The mounting plate 3 is a strip plate, and a middle hole 31 is opened on the mounting plate 3. The spindle 2 passes through the middle hole 31, and the mounting plate 3 is rotatably arranged on the spindle 2.

[0037] Reference Figure 1 and Figure 3 As shown, two transverse grooves 311 are symmetrically provided on the inner peripheral wall of the middle hole 31, and the axial directions of the two transverse grooves are arranged in a colinear manner. Two grooves 21 are symmetrically provided on the outer surface of the main shaft 2, and the concave surface of the groove 21 is a spherical surface.

[0038] Reference Figure 1 and Figure 3As shown, the anti-sway device 8 includes a sliding pin 81 and a third spring 82. The sliding pin 81 is horizontally slidably arranged in the transverse slide groove 311, a section of the sliding pin 81 can be inserted in the groove 21, the end of the sliding pin 81 close to the main shaft 2 is a ball head, and the third spring 82 is arranged in the transverse slide groove 311. The third spring 82 is arranged on the side of the sliding pin 81 away from the main shaft 2, one end of the third spring 82 abuts on the end wall of the transverse slide groove 311 away from the main shaft 2, and the other end of the third spring 82 abuts on the end surface of the sliding pin 81 away from the main shaft 2.

[0039] Reference Figure 1 and Figure 3 As shown, when the transverse slide groove 311 is aligned with the groove 21, the ball heads of the two sliding pins 81 are respectively inserted into the two grooves 21, thereby preventing the mounting plate 3 from rotating. When the ball head portion of the sliding pin 81 is inserted into the groove 21, the spherical surface of the ball head portion of the sliding pin 81 fits the spherical surface of the groove 21.

[0040] Reference Figure 2 and Figure 4 As shown, the driving device 4 includes a driving motor 41, a half gear 42 and a driving gear 43. The driving motor 41 is fixedly connected to the top surface of the workbench 1, the half gear 42 is fixedly connected to the output shaft of the driving motor 41, the half gear 42 has an outer ring arc of 180°, the driving gear 43 is fixedly connected to the bottom plate of the mounting plate 3, the half gear 42 and the driving gear 43 have the same radius, as the driving motor 41 drives the half gear 42 to rotate, the half gear 42 can rotate with the driving gear 43, and the half gear 42 can intermittently drive the mounting plate 3 to rotate 180°.

[0041] Reference Figure 2 and Figure 4 As shown, two mounting holes 32 are provided on the top surface of the mounting plate 3, and the two mounting holes 32 are symmetrically arranged at both ends of the mounting plate 3. Two groups of clamping devices 5 are arranged on the mounting plate 3, and the two groups of clamping devices 5 are arranged at both ends of the mounting plate 3 respectively.

[0042] Reference Figure 2 and Figure 4 As shown, the clamping device 5 includes a clamping tube 51, a sleeve 52 and a locking mechanism 53. The clamping tube 51 is rotatably arranged in the mounting hole 32, and a plurality of vertical grooves 511 communicating with the inner side of the clamping tube 51 are provided on the top outer side surface of the clamping tube 51. In this embodiment, the number of the vertical grooves 511 is four, and the four vertical grooves 511 are symmetrically distributed along the circumferential direction of the clamping tube 51.

[0043] Reference Figure 2 and Figure 4As shown, the vertical grooves 511 are all connected to the top end surface of the clamping tube 51, the inner diameter of the clamping tube 51 is larger than the outer ring diameter of the handle of the valve disc 100, the thickness of the outer wall of the top of the clamping tube 51 increases linearly from bottom to top, and a sleeve 52 is provided on the outer sleeve of the clamping tube 51, and the sleeve 52 is threadedly connected to the clamping tube 51.

[0044] Reference Figure 2 and Figure 4 As shown, the clamping tube 51 is made of elastic metal, the sleeve 52 is initially located in the middle of the clamping tube 51, and the handle of the valve flap 100 is inserted at the top of the clamping tube 51. When the sleeve 52 rotates relative to the clamping tube 51, the sleeve 52 can rotate on the clamping tube 51 and move vertically relative to the clamping tube 51. When the sleeve 52 rotates forward relative to the clamping tube 51 and moves upward relative to the clamping tube 51, after the top of the sleeve 52 contacts the outer ring of the top of the clamping tube 51, the sleeve 52 continues to rotate forward, and the top of the sleeve 52 can gather the top tube wall of the clamping tube 51 inward, thereby clamping the handle of the valve flap 100. When the sleeve 52 rotates reversely relative to the clamping tube 51, the sleeve 52 moves downward relative to the clamping tube 51, and at this time, the top tube wall of the clamping tube 51 is restored to expand outward, and the handle of the valve flap 100 is loosened.

[0045] Reference Figure 2 and Figure 4 As shown, an annular groove 321 is provided on the inner wall of the mounting hole 32, a transverse hole 33 connected to the annular groove 321 is provided on the end surface of the mounting plate 3, and the locking mechanism 53 includes a locking gear 531, a pin 532, a limiting slide 533 and a first spring 534. The locking gear 531 is coaxially fixedly connected to the clamping tube 51, the pin 532 is slidably arranged in the transverse hole 33, a strip hole 331 is provided on the bottom wall of the transverse hole 33, the limiting slide 533 is fixedly connected to the bottom surface of the pin 532, the first spring 534 is arranged in the strip hole 331, the first spring 534 is located on the side of the limiting slide 533 close to the locking gear 531, one end of the first spring 534 is fixed on the limiting slide 533, and the other end of the first spring 534 is fixed on the end wall of the strip hole 331 close to the locking gear 531.

[0046] Reference Figure 1 and Figure 4 As shown, an adjusting gear 54 is coaxially fixedly connected to the sleeve 52. The control device 7 is arranged on the workbench 1, and the control device 7 includes a forward rotation mechanism 71 and a reverse rotation mechanism 72. The valve disc 100 is placed on the clamping tube 51 in an unclamped state. During the process of the mounting plate 3 driving the clamping device 5 to rotate 180°, after passing through the forward rotation mechanism 71, it reaches the position of the surfacing equipment 9. After the surfacing work is completed, the mounting plate 3 continues to rotate 180°, and the mounting plate 3 drives the clamped clamping device 5 to pass through the reverse rotation mechanism 72 and return to the pick-up and put-down position of the valve disc 100.

[0047] Reference Figure 1 and Figure 4 As shown, the positive rotation mechanism 71 includes a first arc-shaped bar 711 and a first arc-shaped rack 712. The first arc-shaped bar 711 is fixedly connected to the workbench 1. When the clamping device 5 rotates to the position of the positive rotation mechanism 71, the first arc-shaped bar 711 is located on the side of the clamping device 5 away from the main shaft 2. One end of the first arc-shaped bar 711 is provided with an inclined surface. When the pin rod 532 conflicts with the inclined surface on the first arc-shaped bar 711, the mounting plate 3 continues to rotate. The inclined surface on the first arc-shaped bar 711 can push the pin rod 532 into the transverse hole 33, so that one end of the pin rod 532 is inserted between the teeth of the locking gear 531, thereby preventing the clamping tube 51 from rotating.

[0048] Reference Figure 1 and Figure 4 As shown, the first arc-shaped rack 712 is fixedly connected to the top surface of the first arc-shaped bar 711, and the thickness of the first arc-shaped rack 712 is greater than the thickness of the adjusting gear 54. When the clamping device 5 rotates to the position of the positive rotation mechanism 71, the adjusting gear 54 engages with the lower part of the first arc-shaped rack 712. As the clamping device 5 continues to move, the positive rotation mechanism 71 drives the sleeve 52 to rotate positively relative to the clamping tube 51 through the adjusting gear 54, so that the adjusting gear 54 moves from one end of the first arc-shaped rack 712 to the other end, and at the same time moves from the lower part to the upper part of the first arc-shaped rack 712.

[0049] Reference Figure 1 and Figure 4 As shown, the reverse rotation mechanism 72 includes a second arc-shaped bar 721 , a second arc-shaped rack 722 and a connecting plate 723 . The second arc bar 721 is fixedly connected to the workbench 1, the connecting plate 723 is fixedly connected to the top of the main shaft 2, and the second arc rack 722 is fixedly connected to the end of the connecting plate 723 away from the main shaft 2. When the clamping device 5 rotates to the position of the reverse rotation mechanism 72, the second arc bar 721 is located on the side of the clamping device 5 away from the main shaft 2, and the second arc rack 722 is located on the side of the clamping device 5 close to the main shaft 2. The adjusting gear 54 is meshed with the second arc rack 722. One end of the second arc bar 721 is provided with an inclined surface. When the pin rod 532 conflicts with the inclined surface on the second arc bar 721, the mounting plate 3 continues to rotate, and the inclined surface on the second arc bar 721 can push the pin rod 532 into the transverse hole 33, so that one end of the pin rod 532 is inserted between the teeth of the locking gear 531, thereby again hindering the rotation of the clamping tube 51.

[0050] Reference Figure 1 and Figure 4As shown, after the valve disc 100 completes the surfacing work, as the clamping device 5 continues to move, the reverse rotation mechanism 72 drives the sleeve 52 to rotate in the opposite direction relative to the clamping tube 51 through the adjusting gear 54, so that the adjusting gear 54 moves from one end of the second arc-shaped rack 722 to the other end, and at the same time moves from the upper part to the lower part of the second arc-shaped rack 722.

[0051] Reference Figure 1 and Figure 4 As shown, the driving device 6 is arranged on the workbench 1, and the driving device 6 includes a driving motor 61, a slide rail 62, a slider 63, a driving gear 64, a baffle 65, a second spring 66, a hydraulic damping rod 67, an electromagnet 68 and a first control switch 69. The slide rail 62 is fixedly connected to the workbench 1, the slider 63 is slidably arranged on the slide rail 62, and the driving motor 61 is fixedly connected to the top surface of the slider 63.

[0052] Reference Figure 1 and Figure 4 As shown, the driving gear 64 is fixedly connected to the output shaft of the driving motor 61, the baffle 65 is located on the side of the slide rail 62 away from the mounting plate 3, the baffle 65 is fixedly connected to the workbench 1, the second spring 66 is arranged between the baffle 65 and the driving motor 61, the hydraulic damping rod 67 is arranged on the inner side of the second spring 66, one end of the hydraulic damping rod 67 is fixedly connected to the baffle 65, and the other end of the hydraulic damping rod 67 is fixedly connected to the motor, an attraction block 611 is fixedly connected to the driving motor 61, and an electromagnet 68 is fixedly connected to the baffle 65. When the electrical circuit of the electromagnet 68 is turned on, the electromagnet 68 can generate an attraction for the attraction block 611.

[0053] Reference Figure 1 and Figure 4 As shown, a vertical plate 12 is fixedly connected to the workbench 1, and a first control switch 69 is fixedly connected to the vertical plate 12. A stopper 11 is also fixedly connected to the workbench 1. When the valve flap 100 is located at the surfacing position, the stopper 11 abuts against a side of the limiting slide bar 533 close to the clamping tube 51, preventing the pin rod 532 from sliding toward a side close to the locking gear 531, so that one end of the pin rod 532 remains outside the transverse hole 33. The end of the pin rod 532 outside the transverse hole 33 is provided with an inclined surface. When the valve disc 100 reaches the surfacing position, under the resistance of the block 11, the pin rod 532 presses the button of the first trigger switch into the first trigger switch through the inclined surface, so that the electrical circuit of the electromagnet 68 is disconnected. At this time, the driving motor 61 slowly moves toward the clamping device 5 under the elastic force of the second spring 66 and the action of the hydraulic damping rod 67 until the driving gear 64 is meshed with the adjusting gear 54. The driving gear 64 slowly drives the adjusting gear 54 to rotate, so that the surfacing equipment 9 performs surfacing welding on the valve disc 100.

[0054] Reference Figure 1 and Figure 4 As shown, when the surfacing work is completed, the mounting plate 3 rotates automatically, the pin 532 disengages from the button of the first trigger switch, the electrical circuit of the electromagnet 68 is turned on, and the electromagnet 68 moves the driving motor 61 away from the clamping device 5 through the attraction block 611, so that the driving gear 64 disengages from the adjusting gear 54.

[0055] Reference Figure 1 and Figure 4 As shown, the surfacing device 9 includes a bracket 91, a welding gun 92, a mounting frame 93 and a second control switch 94. The bracket 91 is fixedly connected to the top surface of the workbench 1, and the welding gun 92 is fixedly connected to the bracket 91. The welding gun 92 is used to surfacing the valve disc 100. The mounting frame 93 is fixedly connected to the workbench 1, and the second control switch 94 is fixedly connected to the mounting frame 93. The second control switch 94 is located on the side of the driving motor 61 close to the clamping device 5, and the second control switch 94 is used to control the start and stop of the welding gun 92.

[0056] Reference Figure 1 and Figure 4 As shown, when the driving gear 64 is meshed with the adjusting gear 54, the driving motor 61 presses the button on the second control switch 94 into the second control switch 94, and the welding gun 92 is automatically started to perform surfacing welding on the valve disc 100. When the surfacing welding is completed, the mounting plate 3 rotates, and the electromagnet 68 drives the driving motor 61 to move toward the baffle 65 through the attraction block 611, so that the driving motor 61 automatically disengages from the second control switch 94, thereby causing the welding gun 92 to automatically stop surfacing welding on the valve disc 100.

[0057] The implementation principle of the collision-free axial flow check valve combined disc processing equipment of the embodiment of the present application is as follows: when the sleeve 52 rotates relative to the clamping tube 51, the sleeve 52 can move vertically relative to the clamping tube 51 while rotating on the clamping tube 51. When the sleeve 52 rotates forwardly relative to the clamping tube 51 and moves upward relative to the clamping tube 51, after the top of the sleeve 52 contacts the outer ring of the top of the clamping tube 51, the sleeve 52 continues to rotate forwardly, and the top of the sleeve 52 can gather the top tube wall of the clamping tube 51 inward, thereby automatically clamping the handle of the valve disc 100. When the sleeve 52 rotates reversely relative to the clamping tube 51, the sleeve 52 moves downward relative to the clamping tube 51, and at this time, the top tube wall of the clamping tube 51 is restored to expand outward, and the handle of the valve disc 100 is automatically loosened.

[0058] When the valve disc 100 is at the surfacing position, the stopper 11 contacts the side of the limit slide bar 533 close to the clamping tube 51, preventing the pin rod 532 from sliding toward the side close to the locking gear 531, so that one end of the pin rod 532 remains outside the transverse hole 33. The end of the pin rod 532 outside the transverse hole 33 is provided with an inclined surface. When the valve disc 100 reaches the surfacing position, under the interference of the stopper 11, the pin rod 532 presses the button of the first trigger switch into the first trigger switch through the inclined surface, disconnecting the electrical circuit of the electromagnet 68. At this time, the driving motor 61 slowly moves toward the clamping device 5 under the elastic force of the second spring 66 and the hydraulic damping rod 67 until the driving gear 64 is meshed with the adjusting gear 54. When the driving gear 64 is meshed with the adjusting gear 54, the driving motor 61 presses the button on the second control switch 94 into the second control switch 94, and the welding gun 92 is automatically started to perform surfacing welding on the valve disc 100. When the surfacing welding is completed, the mounting plate 3 rotates, and the electromagnet 68 drives the driving motor 61 to move toward the baffle 65 through the attraction block 611, so that the driving motor 61 automatically disengages from the second control switch 94, thereby causing the welding gun 92 to automatically stop surfacing welding on the valve disc 100.

[0059] The embodiment of the present application also discloses a method for processing a collision-free axial flow check valve combination valve flap, comprising the following steps: S1: inserting the handle of the valve flap 100 that has not been welded into the top end of the clamping tube 51; S2: after the valve flap 100 passes through the forward rotation mechanism 71, the welding equipment 9 and the reverse rotation mechanism 72 in sequence, returning to the pick-up and placement position and removing the valve flap 100; S3: grinding the removed valve flap 100.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A collision-free axial flow check valve combined disc processing equipment, characterized in that: The invention comprises a workbench (1) and a main shaft (2) fixed on the workbench (1); a mounting plate (3) is rotatably arranged on the main shaft (2); a driving device (4) for driving the mounting plate (3) to intermittently rotate is arranged on the workbench (1); a clamping device (5) for clamping the handle of a valve flap (100) is arranged on the mounting plate (3); a surfacing device (9) for surfacing the valve flap (100) is also fixedly arranged on the workbench (1); a driving device (6) for driving the clamping device (5) to rotate is arranged on one side of the surfacing device (9); a top surface of the mounting plate (3) is provided with a A mounting hole (32) is provided, the clamping device (5) comprises a clamping tube (51) for placing the valve flap (100), the clamping tube (51) is rotatably arranged in the mounting hole (32), a plurality of vertical grooves (511) are provided on the top outer surface of the clamping tube (51) and are connected to the inner side of the clamping tube (51), the vertical grooves (511) are all connected to the top end surface of the clamping tube (51), the thickness of the top outer wall of the clamping tube (51) increases linearly from bottom to top, the outer sleeve (52) is provided on the outer sleeve of the clamping tube (51), and the sleeve (52) is threadedly connected to the clamping tube (51);An annular groove (321) is provided on the inner wall of the mounting hole (32), and a transverse hole (33) connected to the annular groove (321) is provided on the end surface of the mounting plate (3). The clamping device (5) further comprises a locking mechanism (53), wherein the locking mechanism (53) comprises a locking gear (531) fixedly connected to the clamping tube (51), a pin rod (532) having one end which can be inserted between the teeth of the locking gear (531) is slidably provided in the transverse hole (33), a strip hole (331) is provided on the bottom wall of the transverse hole (33), a limiting sliding rod (533) is fixedly connected to the pin rod (532), a first spring (534) is provided in the strip hole (331), one end of the first spring (534) is fixed to the limiting sliding rod (533), and the other end of the first spring (534) is fixed to the strip hole (331) near the locking gear (531). 1), the sleeve (52) is fixedly connected to an adjusting gear (54), the workbench (1) is provided with a control device (7), the control device (7) comprises a positive rotation mechanism (71), the positive rotation mechanism (71) comprises a first arc-shaped bar (711) capable of pushing the pin rod (532) into the transverse hole (33), the first arc-shaped bar (711) is fixedly connected to the workbench (1), the first arc-shaped bar (711) is located on a side of the clamping device (5) away from the main shaft (2), one end of the first arc-shaped bar (711) is provided with an inclined surface for facilitating pushing the pin rod (532) into the transverse hole (33), the top surface of the first arc-shaped bar (711) is fixedly connected to a first arc-shaped rack (712) capable of meshing with the adjusting gear (54), the thickness of the first arc-shaped rack (712) being greater than the thickness of the adjusting gear (54). ; 2. The collision-free axial flow check valve combined disc processing equipment according to claim 1 is characterized in that: The control device (7) further comprises a reverse rotation mechanism (72), wherein the reverse rotation mechanism (72) comprises a second arc-shaped bar (721) capable of pushing the pin rod (532) into the transverse hole (33), one end of the second arc-shaped bar (721) being provided with an inclined surface for facilitating pushing the pin rod (532) into the transverse hole (33), a connecting plate (723) being fixedly connected to the main shaft (2), an end of the connecting plate (723) away from the main shaft (2) being fixedly connected with a second arc-shaped rack (722) capable of meshing with the adjusting gear (54), the second arc-shaped rack (722) being located on a side of the clamping device (5) close to the main shaft (2), and the thickness of the second arc-shaped rack (722) being greater than the thickness of the adjusting gear (54).

3. The collision-free axial flow check valve combined disc processing equipment according to claim 2 is characterized in that: The driving device (6) comprises a driving motor (61) slidably arranged on the workbench (1), a driving gear (64) which can mesh with the adjusting gear (54) is fixedly connected to the output shaft of the driving motor (61), a baffle (65) is arranged on the side of the driving motor (61) away from the mounting plate (3), a second spring (66) is arranged between the baffle (65) and the driving motor (61) for pushing the driving motor (61) toward the side close to the mounting plate (3), a hydraulic damping rod (67) is arranged between the baffle (65) and the driving motor (61), two ends of the hydraulic damping rod (67) are respectively fixedly connected to the baffle (65) and the driving motor (61), an attraction block (611) is fixedly connected to the driving motor (61), and the baffle An electromagnet (68) for generating attraction for the attraction block (611) is fixedly connected to the workbench (1), and a first control switch (69) for controlling the power on and off of the electromagnet (68) is also provided on the workbench (1). A stopper (11) for preventing the limit slide bar (533) from sliding toward the main shaft (2) is also fixedly connected to the workbench (1). When the valve flap (100) is located at the surfacing position, the pin rod (532) triggers the first control switch (69). A mounting frame (93) is fixedly connected to the workbench (1), and a second control switch (94) for controlling the surfacing equipment (9) is fixedly connected to the mounting frame (93). When the driving gear (64) is meshed with the adjusting gear (54), the driving motor (61) triggers the second control switch (94).

4. The collision-free axial flow check valve combined disc processing equipment according to claim 3 is characterized in that: The workbench (1) is fixedly connected to a slide rail (62), a slider (63) is slidably arranged on the slide rail (62), and the rotation driving motor (61) is fixedly connected to the slider (63).

5. The collision-free axial flow check valve combined disc processing equipment according to claim 1 is characterized in that: The mounting plate (3) is a strip plate, and two groups of the clamping devices (5) are arranged on the mounting plate (3). The two groups of the clamping devices (5) are arranged at two ends of the mounting plate (3) respectively. A central hole (31) is provided on the mounting plate (3), and the main shaft (2) passes through the central hole (31). Two transverse sliding grooves (311) are symmetrically provided on the inner peripheral wall of the central hole (31), and two grooves (21) are symmetrically provided on the outer side surface of the main shaft (2). An anti-sway device (8) is arranged in the slide groove (311), and the anti-sway device (8) comprises a sliding pin (81) which can be inserted into the groove (21), and the sliding pin (81) is slidingly arranged in the transverse slide groove (311), and the end of the sliding pin (81) close to the main shaft (2) is a ball head, and a third spring (82) is arranged in the transverse slide groove (311), and the third spring (82) is arranged on the side of the sliding pin (81) away from the main shaft (2).

6. The collision-free axial flow check valve combined disc processing equipment according to claim 1 is characterized in that: The driving device (4) comprises a driving motor (41) fixedly connected to the workbench (1); a half gear (42) is fixedly connected to the output shaft of the driving motor (41); a driving gear (43) meshing with the half gear (42) is fixedly connected to the bottom plate of the mounting plate (3); and the radius of the half gear (42) and the radius of the driving gear (43) are equal.

7. A method for processing a collision-free axial flow check valve combined disc, based on the collision-free axial flow check valve combined disc processing equipment according to claim 3, characterized in that: The steps include: S1: inserting the handle of the valve flap (100) that has not been subjected to surfacing welding into the top end of the clamping tube (51); S2: After the valve flap (100) passes through the forward rotation mechanism (71), the cladding equipment (9), and the reverse rotation mechanism (72) in sequence, it returns to the pick-up and placement position and removes the valve flap (100); S3: grinding the removed valve flap (100).

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