Automatic grinding device for valve casing

Abstract

The invention relates to the technical field of automatic grinding, and provides an automatic grinding device for a valve shell, which can form passive position adjustment according to the specific structure trend on a valve shell body, ensures the grinding operation of the valve shell body, has lower preparation work requirements before the grinding operation, and is simpler in structure, higher in operation efficiency and better in practicability. Comprising an air cylinder, an angle grinder and a valve shell body, and further comprises a seat body structure and an execution structure, the seat body structure comprises a mounting base, the mounting base is fixedly connected with a bearing frame, the bearing frame is provided with a rotary clamping workbench, the rotary clamping workbench is used for clamping and positioning the valve shell body, and the mounting base is provided with an intelligent assembly; the intelligent assembly is used for controlling operation of the air cylinder, an installation end frame is fixedly connected to the installation base, the execution structure comprises a lifting frame and an overhanging frame, the lifting frame is installed on the installation end frame, the overhanging frame is rotationally connected with the lifting frame, a variable frequency motor is installed on the lifting frame, and a sliding frame is slidably connected into the overhanging frame.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automatic polishing, and in particular to a valve shell automatic polishing device. BACKGROUND

[0002] It is known that a valve shell body is one of main structural parts of a valve, is mainly used for wrapping and protecting internal components such as a valve core and a valve seat, simultaneously bears medium pressure and connects pipes, and polishing of the valve shell body is an important processing technology, which mainly serves to improve the surface quality and performance of the valve shell body, and for the convenience of polishing work on the surface of the valve shell body, the application provides the valve shell automatic polishing device.

[0003] According to the search, a patent with the Chinese patent application number CN202311517212.2 discloses a surface polishing device for a valve body, which is roughly described as including a shell, a cross slide is fixedly installed at the inner top of the shell, when the polishing machine is started to polish the valve body, the cross slide can drive the polishing machine to move to any position, the polishing machine can be driven to ascend and descend through cooperation of a pneumatic cylinder, a connecting plate and a mounting rod, the polishing machine can be driven to rotate through cooperation of a servo motor, a first pulley, a transmission belt and a second pulley, the distance between the polishing machine and the valve body can be adjusted through cooperation of a first stepper motor, a drive gear and a rack, the polishing machine can be driven to overturn through cooperation of a second stepper motor and a rotating block, and through the cooperation, the polishing machine is flexible in movement and can polish the valve body with a complex surface.

[0004] Although the prior art scheme can polish the valve body with a complex surface to a certain extent, it can be seen from the accompanying drawings that the polishing machine for performing the polishing work mainly adopts electric driving components to form adjustment of the polishing station, so that the position and the movement track of the polishing machine before the polishing work need to be preset according to the polishing structure, the preparation work before the polishing work is relatively strict, and therefore the polishing machine is more suitable for machining work on a relatively precise area of the valve shell body, and the practicability is poor for a relatively low-precision area of the valve shell body. SUMMARY

[0005] In view of the defects of the prior art, the application provides the valve shell automatic polishing device, which can form passive position adjustment according to the specific structure trend of the valve shell body, is lower in requirement for the preparation work before the polishing work of the valve shell body, is simpler in structure, is higher in operation efficiency and is better in practicability.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a valve shell automatic polishing device, comprising a cylinder, an angle grinder and a valve shell body, further comprising a seat structure and an execution structure, the seat structure comprises a mounting base, the mounting base is fixedly connected with a bearing frame, a rotary clamping workbench is installed on the bearing frame, the rotary clamping workbench is used for clamping and positioning the valve shell body, an intelligent component is installed on the mounting base, the intelligent component is used for operation control of the cylinder, the mounting base is fixedly connected with a mounting end frame, the execution structure comprises a lifting frame and a cantilever frame, the lifting frame is installed on the mounting end frame, the cantilever frame is rotatably connected with the lifting frame, a variable frequency motor is installed on the lifting frame, a sliding frame is slidably connected in the cantilever frame, the variable frequency motor is used for driving the reciprocating motion of the sliding frame relative to the cantilever frame, a clamping groove is arranged at the bottom end of the sliding frame, the angle grinder is detachably installed in the clamping groove through a plurality of pressing bolts, the cylinder is installed on the mounting base, an elastic tension spring is installed on the telescopic rod of the cylinder, and the elastic tension spring is connected with the cantilever frame.

[0007] Preferably, the rotary clamping workbench comprises a rotating disc and a servo motor, the bottom end of the rotating disc is fixedly connected with a rotary shaft, the rotary shaft is rotatably connected with the bearing frame, the servo motor is installed at the bottom end of the bearing frame, and the output shaft of the servo motor is connected with the rotary shaft through a shaft coupling, two outer extension plates are arranged on the rotating disc, two horizontal nuts are fixedly connected with the two outer extension plates, two pressing screws are threadedly connected in the two horizontal nuts, and the two pressing screws cooperatively form the pressing positioning of the valve shell body.

[0008] Preferably, two raised wings are arranged on the valve shell body, connecting holes are arranged on the two raised wings, tapered columns are arranged on the two pressing screws, the two tapered columns are matched with the two connecting holes respectively, and torsion auxiliary rods are arranged on the two pressing screws.

[0009] Preferably, the intelligent component comprises a pressure sensor and two contact arc-shaped plates, the pressure sensor is installed on the mounting base through an auxiliary support, two horizontal installation plates are fixedly connected with the two contact arc-shaped plates, the two horizontal installation plates are fixedly connected at the bottom ends of the two outer extension plates respectively, and the two contact arc-shaped plates are used for triggering the pressure sensor.

[0010] Preferably, the lifting frame is provided with a guide section, a guide groove is formed in the mounting end frame, the guide section is slidably matched with the guide groove, a lead screw is threadedly connected in the mounting end frame, the lead screw is rotatably connected with the lifting frame, a fixed ring is fixedly connected with the lifting frame, a flared ring is fixedly connected with the cantilever frame, and the flared ring is rotatably connected with the fixed ring.

[0011] Preferably, the cantilever is fixedly connected with a rotating link, the rotating link is rotatably connected with a connecting shaft, the fixed ring is rotatably connected with a transmission shaft, the transmission shaft is in transmission connection with the output shaft of the variable frequency motor, the connecting shaft and the transmission shaft are fixedly connected with counterweight rotating discs, the two counterweight rotating discs are fixedly connected with a driving shaft, the driving shaft is rotatably connected with a transmission frame, and the transmission frame is rotatably connected with the sliding frame.

[0012] Preferably, the mounting base is fixedly connected with a side mounting frame, the air cylinder is mounted on the side mounting frame, the side mounting frame is fixedly connected with a folding support, the folding support is fixedly connected with a fixed nut, the fixed nut is in threaded connection with an adjustable support screw, the cantilever is fixedly connected with a swing limiting plate, the swing limiting plate is provided with a mounting hole, the mounting hole is provided with an assembly bolt, the assembly bolt is in threaded fixed connection with a contact pad, and the contact pad is arranged on the lower side of the swing limiting plate.

[0013] Preferably, the telescopic rod of the air cylinder is fixedly connected with a connecting mounting plate, the connecting mounting plate is mounted with a hooking piece, the top end of the cantilever is fixedly connected with a warped hole plate, and the two ends of the elastic tension spring are fixedly connected with mounting hooks.

[0014] Preferably, the mounting base and the side mounting frame are fixedly connected with a fixed arc edge frame and a supporting arc edge frame, respectively, two first arc-shaped frames are rotatably connected with the fixed arc edge frame, two second arc-shaped frames are rotatably connected with the supporting arc edge frame, connecting barrels are mounted on the two second arc-shaped frames, connecting pin pieces are connected with the two connecting barrels, half pin barrels are matched with the two connecting pin pieces, and the two half pin barrels are fixedly connected with the two first arc-shaped frames.

[0015] Preferably, an end support is fixedly connected outside the mounting base, and a power distribution cabinet is mounted outside the end support.

[0016] Compared with the prior art, the valve shell automatic polishing device has the following beneficial effects: (1) In the present application, the clamping operation station of the angle grinder is formed through the design of the execution structure, the position driving of the angle grinder is facilitated, the machining surface of the valve shell body matched with the angle grinder can be formed to be in active motion, the machining surface on the valve shell body can be ensured to be covered and machined, and passive position adjustment can be formed according to the specific structure trend on the valve shell body.

[0017] (2). In the application, through the design of the rotary clamping workbench, the valve shell body is formed clamping positioning and rotating control to match the work, the valve shell body can form relative rotation with the angle grinder which can match the movement, and finally realize the overall work of the valve shell body.

[0018] (3). In the application, through the design of the intelligent component, the valve shell rotating on the rotary clamping workbench is formed to identify the rotating posture, and the rotating signal of the valve shell body is transmitted to the air cylinder, so that the air cylinder can correspond to the work of the valve shell body to complete the complete polishing of the valve shell body, and avoid the non-working area.

[0019] (4). In the application, through the design of the seat structure, the integrated assembly of the valve shell automatic polishing device is formed to facilitate the cooperative operation of the aforementioned execution structure, rotary clamping workbench and intelligent component, and finally achieve the automatic polishing work of the valve shell body. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall three-dimensional structure of the application; Figure 2 is a schematic diagram of the overall three-dimensional structure of the application; Figure 1 Figure 3 is a schematic diagram of the overall three-dimensional structure of the application; Figure 1 Figure 4 is a schematic diagram of the overall three-dimensional structure of the application; Figure 5 is a schematic diagram of the overall three-dimensional structure of the application; Figure 6 is a schematic diagram of the overall three-dimensional structure of the application; Figure 7 is a schematic diagram of the overall three-dimensional structure of the application; Figure 6 Figure 8 is a schematic diagram of the overall three-dimensional structure of the application; Figure 9 is a schematic diagram of the overall three-dimensional structure of the application; Figure 10 is a schematic diagram of the overall three-dimensional structure of the application; Figure 9 Figure 11 is a schematic diagram of the overall three-dimensional structure of the application; Figure 12 is a schematic diagram of the overall three-dimensional structure of the application;​​​​Figure 11 Local enlarged structure schematic view at middle E; Figure 13 Assembled exploded perspective structure schematic view of the mounting base, overhanging frame and guide segment of the present application; Figure 14 Assembled exploded perspective structure schematic view of the servo motor, rotating shaft and coupling of the present application; Figure 15 Assembled perspective structure schematic view from below of the overhanging frame, contact pad and assembly bolt of the present application; Figure 16 Assembled perspective structure schematic view from below of the folding bracket, fixed nut and adjustable support screw of the present application; Figure 17 Three-dimensional schematic view of the running track of the angle grinder on the valve shell body of the present application.

[0021] In the figure: 1, cylinder; 2, angle grinder; 3, valve shell body; 4, mounting base; 5, bearing frame; 6, lifting frame; 7, overhanging frame; 8, variable frequency motor; 9, sliding frame; 10, clamping groove; 11, elastic tension spring; 12, rotating disc; 13, servo motor; 14, rotating shaft; 15, coupling; 16, overhanging plate; 17, transversely mounted nut; 18, compression screw; 19, protruding wing; 20, conical column; 21, torsion auxiliary rod; 22, pressure sensor; 23, contact arc plate; 24, horizontally mounted plate; 25, guide segment; 26, lead screw; 27, fixed ring; 28, flared ring; 29, rotating link; 30, connecting shaft; 31, transmission shaft; 32, counterweight rotating disc; 33, drive shaft; 34, transmission frame; 35, side mounting frame; 36, folding bracket; 37, fixed nut; 38, adjustable support screw; 39, contact pad; 40, swing limiting plate; 41, assembly bolt; 42, connecting mounting plate; 43, hooking piece; 44, hole plate with raised edge; 45, mounting hook; 46, fixed arc edge frame; 47, supporting arc edge frame; 48, first arc-shaped frame; 49, second arc-shaped frame; 50, connecting cylinder; 51, connecting pin piece; 52, half pin cylinder; 53, sheet metal shielding skin; 54, end bracket; 55, power distribution cabinet. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] Embodiment, please refer to Figures 1-17The utility model provides a valve shell automatic polishing device, including cylinder 1, angle grinder 2 and valve shell body 3, still including seat body structure and execution structure, seat body structure includes installation base 4, is fixedly connected with the bearing frame 5 on installation base 4, through the design of seat body structure, the integrated assembly of the valve shell automatic polishing device whole is formed to facilitate the collaborative operation of execution structure, gyration clamping workstation and intelligent component, finally reaches the automatic polishing operation of corresponding valve shell body 3 external shell face, bearing frame 5 is installed with gyration clamping workstation, and gyration clamping workstation is used for the clamping positioning of valve shell body 3, and gyration clamping workstation includes rotary disc 12 and servo motor 13, and the bottom fixedly connected with gyration shaft 14 of rotary disc 12 is rotatably connected on bearing frame 5, and servo motor 13 is installed at the bottom of bearing frame 5, and the output shaft of servo motor 13 is connected through coupling 15 between gyration shaft 14, and two outer extension plates 16 are arranged on rotary disc 12, and two outer extension plates 16 are fixedly connected with horizontal screw nut 17, and two horizontal screw nuts 17 are all screw connected with the pressing screw rod 18 in two, and two pressing screw rods 18 are cooperatively formed the pressing positioning of valve shell body 3, through the design of gyration clamping workstation, the clamping positioning and rotation control of the valve shell body to be operated are formed, make the relative rotation of angle grinder 2 that valve shell body can be matched with motion, finally realize the overall operation of the surface to be processed on valve shell body.

[0024] It also needs to be further explained that the valve shell body 3 is provided with two protruding wings 19, the two protruding wings 19 are provided with connecting holes, the two compression screws 18 are provided with tapered columns 20, the two tapered columns 20 are matched with the two connecting holes respectively, the two compression screws 18 are provided with torsion auxiliary rods 21, so that the compression screw 18 corresponds to the valve shell body 3 to be processed to form a clamping adaptation, ensure the position stability of the valve shell body 3 during the working operation, the intelligent assembly is installed on the mounting base 4, the intelligent assembly is used for the operation control of the cylinder 1, the intelligent assembly includes a pressure sensor 22 and two contact arc-shaped plates 23, the pressure sensor 22 is installed on the mounting base 4 through an auxiliary support, the two contact arc-shaped plates 23 are fixedly connected with horizontal mounting plates 24, the two horizontal mounting plates 24 are fixedly connected with the bottom ends of the two outer extension plates 16 respectively, the two contact arc-shaped plates 23 are used for triggering the pressure sensor 22, through the design of the intelligent assembly, the recognition of the rotating posture of the valve shell rotatingly adjusted on the matched rotary clamping workbench is formed, and the rotating signal of the valve shell body is transmitted to the cylinder 1, so that the cylinder 1 can correspond to the working operation of the valve shell body to complete the complete polishing of the to-be-processed area of the valve shell body 3, while avoiding the non-processing area, the mounting end frame is fixedly connected with the mounting base 4, the execution structure includes a lifting frame 6 and a cantilever frame 7, the lifting frame 6 is installed on the mounting end frame, the cantilever frame 7 is rotationally connected with the lifting frame 6, the variable frequency motor 8 is installed on the lifting frame 6, the sliding frame 9 is slidably connected in the cantilever frame 7, the variable frequency motor 8 is used for driving the reciprocating motion of the sliding frame 9 relative to the cantilever frame 7, the bottom end of the sliding frame 9 is provided with a clamping groove 10, the angle grinder 2 is detachably installed in the clamping groove 10 through a plurality of compression bolts, the cylinder 1 is installed on the mounting base 4, the elastic tension spring 11 is installed on the telescopic rod of the cylinder 1, the elastic tension spring 11 is connected with the cantilever frame 7, the connecting mounting plate 42 is fixedly connected with the telescopic rod of the cylinder 1, the hooking piece 43 is installed on the connecting mounting plate 42, the top end of the cantilever frame 7 is fixedly connected with the upturned hole plate 44, the two ends of the elastic tension spring 11 are fixedly connected with the mounting hooks 45, the two mounting hooks 45 are respectively hooked and installed with the hooking piece 43 and the upturned hole plate 44, through the design of the execution structure, the clamping operation station of the angle grinder 2 is formed, the position driving of the angle grinder 2 is facilitated, the angle grinder 2 can form active motion with the processing surface of the valve shell body, ensure the covering processing of the processing surface on the valve shell body, and can form passive position adjustment according to the specific structure trend on the valve shell body, the preparation work before the polishing operation is lower, and the structure is simpler.

[0025] It should be further pointed out that the lifting frame 6 is provided with a guide segment 25, a guide groove is opened on the mounting end frame, the guide segment 25 is in sliding fit with the guide groove, a lead screw 26 is threadedly connected in the mounting end frame, the lead screw 26 is in rotary connection with the lifting frame 6, by rotating the lead screw 26, the height adjustment of the lifting frame 6 relative to the mounting end frame can be realized, so as to facilitate the auxiliary adjustment of the height of the overhanging frame 7, and the height matching with the valve shell body 3 of different thicknesses can be formed, a fixing ring 27 is fixedly connected on the lifting frame 6, an expanded ring 28 is fixedly connected on the overhanging frame 7, the expanded ring 28 is in rotary connection with the fixing ring 27, a rotary connecting ring 29 is fixedly connected on the overhanging frame 7, a connecting shaft 30 is rotatably connected in the rotary connecting ring 29, a transmission shaft 31 is rotatably fitted in the fixing ring 27, the transmission shaft 31 is in transmission connection with the output shaft of the frequency conversion motor 8, the connecting shaft 30 and the transmission shaft 31 are both fixedly connected with a counterweight rotary disc 32, the two counterweight rotary discs 32 are fixedly connected with a driving shaft 33, the driving shaft 33 is rotatably connected with a transmission frame 34, the transmission frame 34 is in rotary connection with the sliding frame 9, a side mounting frame 35 is fixedly connected on the mounting base 4, the air cylinder 1 is mounted on the side mounting frame 35, a folding support frame 36 is fixedly connected on the side mounting frame 35, a fixed nut 37 is fixedly connected on the folding support frame 36, an adjustable support screw 38 is threadedly connected with the fixed nut 37, a swing limiting plate 40 is fixedly connected on the overhanging frame 7, the swing limiting plate 40 is provided with a mounting hole, an assembly bolt 41 is arranged in the mounting hole, a contact pad 39 is threadedly fixedly connected with the assembly bolt 41, the contact pad 39 is arranged on the lower side of the swing limiting plate 40, by rotating and adjusting the adjustable support screw 38 relative to the fixed nut 37, the adjustment of the topmost height of the adjustable support screw 38 can be realized, the top of the adjustable support screw 38 matches the contact pad 39 to form auxiliary support, so as to limit the limit falling height of the overhanging frame 7, an end support frame 54 is fixedly connected outside the mounting base 4, a power distribution cabinet 55 is mounted outside the end support frame 54, the valve shell automatic polishing device is matched to form a control circuit and a control electrical installation, a fixed arc edge frame 46 and a supporting arc edge frame 47 are fixedly connected on the mounting base 4 and the side mounting frame 35 respectively, two first arc frames 48 are rotatably connected on the fixed arc edge frame 46, two second arc frames 49 are rotatably connected on the supporting arc edge frame 47, the two second arc frames 49 are both fixedly connected with a connecting cylinder 50, the two connecting cylinders 50 are both connected with a connecting pin 51, the two connecting pins 51 are both matched with a half pin cylinder 52, the two half pin cylinders 52 are respectively fixedly connected with the two first arc frames 48, the supporting arc edge frame 47, the fixed arc edge frame 46, the two first arc frames 48 and the two second arc frames 49 are all provided with a metal shielding skin 53.

[0026] The air cylinder 1, the angle grinder 2, the variable frequency motor 8, the servo motor 13, the pressure sensor 22 and the power distribution cabinet 55 in the embodiment are all conventional devices known to those skilled in the art, which are purchased on the market, and we only use them in the application, and do not improve their structure and function, and their setting mode, installation mode and electrical connection mode can be debugged according to the requirements of the instruction manual, and here is not repeated.

[0027] In summary, the working principle of the valve shell automatic polishing device is as follows: before use, first, install the air pump, air tank, pipeline and valve for the cylinder 1, and connect the control circuit of the air pump, valve, angle grinder 2, variable frequency motor 8, servo motor 13 and pressure sensor 22 to the power distribution cabinet 55. By installing corresponding control electrical elements in the power distribution cabinet 55, the operation control of the air pump, valve, angle grinder 2, variable frequency motor 8 and servo motor 13 is realized, and the detection signal reading and identification of the pressure sensor 22 are also realized. Before operation, check the connection state of each part to ensure that the angle grinder 2 is stably installed in the clamping groove 10 at the bottom end of the sliding frame 9 through multiple compression bolts, and the power distribution cabinet 55 supplies normal power. Then, the valve shell body 3 is clamped. First, open any one of the first arc-shaped frame 48 and the second arc-shaped frame 49. When opening, slide the connecting pin 51 in the connecting cylinder 50 out of the corresponding half pin cylinder 52, and then adjust the first arc-shaped frame 48 and the second arc-shaped frame 49 relative to the fixed arc edge frame 46 and the supporting arc edge frame 47 respectively to form a passable channel between the first arc-shaped frame 48 and the second arc-shaped frame 49. Place the valve shell body 3 on the rotating disc 12 of the rotary clamping workbench, so that the connecting holes on the two protruding wings 19 are aligned with the tapered column 20 of the two compression screws 18. Turn the compression screw 18 in the horizontal nut 17 on the outer extension plate 16 by twisting the auxiliary rod 21, and use the cooperation of the two compression screws 18 to realize the compression positioning of the valve shell body 3. Then, rotate and close the opened first arc-shaped frame 48 and second arc-shaped frame 49, and slide the connecting pin 51 back into the corresponding half pin cylinder 52 to limit the closed position of the first arc-shaped frame 48 and the second arc-shaped frame 49 after rotation and closing. Then, adjust the position of the execution structure. Rotate the lead screw 26 in the mounting end frame. Since the lead screw 26 is rotationally connected with the lifting frame 6, and the guide section 25 on the lifting frame 6 is slidingly connected with the guide groove on the mounting end frame, the lead screw 26 drives the lifting frame 6 to slide up and down along the guide groove through the screw thread force when rotating, so as to adjust the height of the overhanging frame 7 and the angle grinder 2 in the clamping groove 10 which are rotationally connected with the lifting frame 6, so that the angle grinding disc of the angle grinder 2 is adapted to align with the part of the valve shell body 3 that needs to be polished. Then, rotate the adjustable support screw 38 to change the limit of the swing falling limit position of the top abutting contact pad 39 of the adjustable support screw 38 through screw thread cooperation. Since the middle position of the top of the valve shell body 3 is higher and the peripheral position of the top is lower, the height of the top of the adjustable support screw 38 should be controlled to be approximately equal to the height of the peripheral position of the valve shell body 3, so that when the angle grinder 2 is at the lowest height, the angle grinding disc thereon will be flush with the peripheral position of the valve shell body 3, and the angle grinding disc can smoothly cut into the valve shell body 3 when it moves out of the valve shell body 3 and then moves back.

[0028] After all the adjustments are completed, the polishing operation is started. The servo motor 13 and the variable frequency motor 8 are started by the power distribution cabinet 55. After the servo motor 13 is operated, the output shaft of the servo motor 13 drives the rotating shaft 14 through the shaft coupling 15 to rotate, and the rotating shaft 14 drives the rotating disc 12 at the top and the valve shell body 3 clamped thereon to rotate synchronously. After the variable frequency motor 8 is operated, the output shaft of the variable frequency motor 8 drives the transmission shaft 31 to rotate, and the transmission shaft 31 drives the counterweight rotating disc 32 fixedly connected thereto to rotate. The counterweight rotating disc 32 drives another counterweight rotating disc 32 fixedly connected with the connecting shaft 30 in the rotating link 29 to rotate synchronously through the driving shaft 33. When the driving shaft 33 rotates, the transmission frame 34 rotatingly connected thereto makes reciprocating swing movement. When the transmission frame 34 swings, the sliding frame 9 rotatingly connected therewith makes reciprocating sliding movement in the cantilever frame 7, and further drives the angle grinder 2 at the bottom end of the sliding frame 9 to make reciprocating linear movement. While the angle grinding piece on the angle grinder 2 makes reciprocating movement, the surface of the rotating valve shell body 3 is uniformly polished. While the polishing operation is being performed, the rotating disc 12 rotates to drive the horizontally installed plate 24 to move through the outward extension plate 16, and the horizontally installed plate 24 drives the contact arc plate 23 connected therewith to rotate synchronously. When the contact arc plate 23 rotates to contact the pressure sensor 22, the pressure sensor 22 is triggered, and the pressure sensor 22 transmits the detected signal to the power distribution cabinet 55. The power distribution cabinet 55 controls the cylinder 1 to operate according to the preset program. The telescopic rod of the cylinder 1 makes extension movement, and the cantilever frame 7 is pulled by the elastic tension spring 11 to form angle adjustment around the rotating connection between the flared ring 28 and the fixed ring 27, so as to adjust the angle grinding piece of the angle grinder 2 to separate from the polishing surface of the valve shell body 3, so that the angle grinding piece is avoided from contacting the convex wing 19, and the angle grinding piece is prevented from being polished by contacting the convex wing 19. When the contact arc plate 23 is relatively rotated away from the pressure sensor 22, the pressure signal that can be detected by the pressure sensor 22 disappears, and the telescopic rod of the cylinder 1 is lowered in height to realize the recontact between the angle grinding piece and the polishing surface of the valve shell body 3, so as to realize the continuous operation of the polishing operation of the valve shell body 3. That is, the top of the valve shell body 3 except the convex wing 19 is the target polishing area. Due to the elastic effect of the elastic tension spring 11, when the angle grinder 2 is adjusted in relative position with respect to the cantilever frame 7, the angle grinding piece is passively moved with respect to the valve shell body 3 by the supporting force of the top of the valve shell body 3 with respect to the angle grinding piece. If the height difference of the top of the valve shell body 3 is large, the angle grinding piece can be further adjusted in height by the cooperative operation of the cylinder 1. After the polishing of the valve shell body 3 is completed, the servo motor 13 and the variable frequency motor 8 are stopped by the power distribution cabinet 55, and then the telescopic rod of the cylinder 1 is raised to realize the traction and lifting of the angle grinding piece by the elastic tension spring 11. Subsequently, the valve shell body 3 and the angle grinder 2 are stopped, the power supply of the power distribution cabinet 55 is turned off, the pressing action on the valve shell body 3 is released, the polished valve shell body 3 is taken off from the rotating disc 12, and the automatic polishing process of the valve shell body is completed. The polishing process is shown in FIG. 8. Figure 17The arrow on the central trajectory line is the direction of advancement of the angle grinder 2 with respect to the valve housing body 3.

[0029] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and spirit of the application and that numerous modifications, changes, substitutions, and alterations can be undertaken by one skilled in the art without departing from the principles and spirit of the application, which is defined by the claims as appended hereto and their equivalents.

Claims

1. An automatic valve housing grinding device, comprising a cylinder, an angle grinder, and a valve housing body, characterized in that, It also includes a base structure and an execution structure. The base structure includes a mounting base with a support frame fixedly connected to it. A rotary clamping worktable is mounted on the support frame for clamping and positioning the valve body. An intelligent component is mounted on the mounting base for controlling the operation of the cylinder. An installation end frame is fixedly connected to the mounting base. The execution structure includes a lifting frame and a cantilever frame. The lifting frame is mounted on the installation end frame, and the cantilever frame is rotatably connected to the lifting frame. A variable frequency motor is mounted on the lifting frame, and a sliding frame is slidably connected inside the cantilever frame. The variable frequency motor drives the reciprocating motion of the sliding frame relative to the cantilever frame. A clamping groove is provided at the bottom of the sliding frame. The angle grinder is detachably mounted in the clamping groove by multiple clamping bolts. The cylinder is mounted on the mounting base, and an elastic tension spring is mounted on the cylinder's telescopic rod, which is connected to the cantilever frame.

2. The automatic valve shell grinding device according to claim 1, characterized in that, The rotary clamping worktable includes a rotating disk and a servo motor. A rotary shaft is fixedly connected to the bottom end of the rotating disk and is rotatably connected to the support frame. The servo motor is installed at the bottom end of the support frame, and the output shaft of the servo motor is connected to the rotary shaft through a coupling. Two extension plates are provided on the rotating disk, and horizontal nuts are fixedly connected to both extension plates. A clamping screw is threaded into both horizontal nuts, and the two clamping screws cooperate to form a clamping and positioning of the valve body.

3. The automatic valve housing grinding device according to claim 2, characterized in that, The valve body has two protruding wings, each with a connecting hole. Each of the two clamping screws has a frustum-shaped column, which is matched with the two connecting holes. Each of the two clamping screws has a torsion auxiliary rod.

4. The automatic valve housing grinding device according to claim 3, characterized in that, The intelligent component includes a pressure sensor and two contact arc plates. The pressure sensor is mounted on the mounting base via an auxiliary bracket. Horizontal mounting plates are fixedly connected to both contact arc plates. The two horizontal mounting plates are respectively fixedly connected to the bottom ends of two extended plates. Both contact arc plates are used to trigger the pressure sensor.

5. The automatic valve housing grinding device according to claim 4, characterized in that, The lifting frame is provided with a guide section, and the mounting end frame is provided with a guide groove. The guide section and the guide groove are slidably engaged. The mounting end frame is internally threaded with a lead screw, which is rotatably connected to the lifting frame. A fixing ring is fixedly connected to the lifting frame, and a flared ring is fixedly connected to the cantilever frame. The flared ring is rotatably connected to the fixing ring.

6. The automatic valve housing grinding device according to claim 5, characterized in that, A rotating ring is fixedly connected to the cantilever frame, a connecting shaft is rotatably connected inside the rotating ring, and a transmission shaft is rotatably fitted inside the fixed ring. The transmission shaft is driven by the output shaft of the variable frequency motor. A counterweight turntable is fixedly connected to both the connecting shaft and the transmission shaft. A drive shaft is fixedly connected between the two counterweight turntables. A transmission frame is rotatably connected to the drive shaft, and the transmission frame is rotatably connected to the sliding frame.

7. The automatic valve housing grinding device according to claim 6, characterized in that, A side mounting bracket is fixedly connected to the mounting base. The cylinder is mounted on the side mounting bracket, and a folding bracket is fixedly connected to the side mounting bracket. A fixing nut is fixedly connected to the folding bracket, and an adjustable support screw is threaded onto the fixing nut. A swing limiting plate is fixedly connected to the cantilever frame. A mounting hole is provided on the swing limiting plate, and an assembly bolt is provided in the mounting hole. A contact pad is threadedly fixed onto the assembly bolt, and the contact pad is located on the lower side of the swing limiting plate.

8. The automatic valve housing grinding device according to claim 7, characterized in that, A connecting mounting plate is fixedly connected to the telescopic rod of the cylinder, and a hook is installed on the connecting mounting plate. A lifting edge perforated plate is fixedly connected to the top of the cantilever frame, and both ends of the elastic tension spring are fixedly connected to mounting hooks. The two mounting hooks are respectively hooked and installed with the hook and the lifting edge perforated plate.

9. The automatic valve housing grinding device according to claim 8, characterized in that, A fixed arc-shaped frame and a supporting arc-shaped frame are fixedly connected to the mounting base and the side mounting bracket, respectively. Two first arc-shaped frames are rotatably connected to the fixed arc-shaped frame, and two second arc-shaped frames are rotatably connected to the supporting arc-shaped frame. Each of the two second arc-shaped frames is fixedly connected to a connecting cylinder, and each of the two connecting cylinders is connected to a connecting pin. Each of the two connecting pins is equipped with a half-pin cylinder, and each of the two half-pin cylinders is fixedly connected to the two first arc-shaped frames. The supporting arc-shaped frame, the fixed arc-shaped frame, the two first arc-shaped frames, and the two second arc-shaped frames are all provided with sheet metal covering skin.

10. The automatic valve housing grinding device according to claim 9, characterized in that, An end bracket is fixedly connected to the mounting base, and a power distribution cabinet is installed on the end bracket.

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