Cylinder body polishing device

Abstract

The invention belongs to the technical field of polishing equipment, and particularly relates to a cylinder body polishing device which comprises a swing mechanism. The sealing groove polishing mechanism, the end face polishing mechanism and the flange face polishing mechanism are used for polishing the cylinder body in sequence. Each grinding mechanism comprises a mounting seat arranged in a lifting manner, a diaphragm cavity sealing body assembled on the mounting seat in an up-down sliding manner, a sealing body elastic part for applying downward elastic force to the diaphragm cavity sealing body, and a grinding part arranged on the mounting seat, and the grinding part is used for being in contact with a to-be-ground part of the cylinder body after the sealing body elastic part is compressed; the end face grinding mechanism and the flange face grinding mechanism further comprise a cleaning brush assembled on the mounting base in an up-down sliding mode, the cleaning brush is provided with a lower cleaning position and an upper avoiding position when sliding up and down, and when the cleaning brush is located at the lower cleaning position, the bottom of the cleaning brush is located below the grinding piece and makes contact with the to-be-ground part of the cylinder body before the grinding piece. And when in the upper avoiding position, the bottom of the cleaning brush is positioned above the bottom surface of the polishing piece.

Description

Technical Field

[0001] The present invention belongs to the technical field of grinding equipment, and particularly relates to a cylinder block grinding device. Background Art

[0002] A diaphragm compressor is a special type of positive displacement compressor that achieves gas compression through the reciprocating motion of one or more elastic diaphragms. Its structure is mostly as shown in the invention patent application with the publication number CN114352509A, including a cylinder block (also known as the oil-side cylinder block) and a cylinder head (also known as the gas-side cylinder block). The cylinder head is fixed to the cylinder block by second hexagon socket head cap screws. A distribution plate is fixed on the cylinder block, and a diaphragm is press-fitted between the distribution plate and the cylinder head. Gas suction and compression are achieved through the reciprocating motion of the diaphragm. Among them, in order to achieve sealing, a third sealing ring is provided between the contact end portions of the cylinder head and the cylinder block, a fourth sealing ring is provided between the cylinder head and the diaphragm, and a sixth sealing ring is provided between the diaphragm and the distribution plate.

[0003] As Figure 1 shown, the gas-side cylinder block (hereinafter simply referred to as cylinder block 100) is provided with a gas hole 101 and bolt through-holes 102. A plurality of bolt through-holes 102 are circumferentially and uniformly distributed around the cylinder block 100. A diaphragm cavity 103 is provided at the middle position of one end of the cylinder block 100, and the diaphragm cavity 103 is used to cooperate with the diaphragm to achieve gas suction and compression. A sealing groove 104 is also provided on the same end face of the cylinder block 100, and the sealing groove 104 is used to install a sealing ring (such as the fourth sealing ring in the above patent application). A cooling hole 105 is provided on the side of the cylinder block 100, and the cooling hole 105 is used to install a cooling joint.

[0004] During processing, according to the requirements of use and assembly, it is necessary to grind the diaphragm cavity 103, the sealing groove 104, the end face 106 where the sealing groove 104 is located, and the flange face 107 in sequence to ensure the sealing performance.

[0005] The existing grinding devices all have relatively simple structures. Most are as shown in a grinding mechanism for cylinder block production disclosed in the utility model patent with the authorization publication number CN219075114U, which includes a vertical plate, a rotating shaft rotatably arranged on the vertical plate, a rotating disk fixed on the rotating shaft, a plurality of fixing bars fixed on the rotating disk, cylinders fixed on the fixing bars, and an arc-shaped clamping block fixed at the output end of the cylinder. The cylinder block is clamped together by the extension of a plurality of cylinders, and the cylinder block is rotated by the rotating shaft. The grinding mechanism for cylinder block production also includes a grinding disc and a second motor for driving the grinding disc to rotate. When in use, the rotating mechanism composed of the vertical plate, the rotating shaft, the rotating disk, the fixing bars, the cylinders, and the arc-shaped clamping block drives the cylinder block to rotate, and the second motor drives the grinding disc to rotate, so as to grind the end face of the cylinder block.

[0006] When the grinding mechanism of the prior art grinds the cylinder block of the diaphragm compressor, it cannot protect the diaphragm cavity with the highest precision requirements and the first to be ground, and the debris generated during the grinding process of the previous process will fall on the next surface to be ground, and the next surface to be ground will be damaged during the grinding process. Summary of the Invention

[0007] The present invention provides a cylinder block grinding device to solve the technical problem that the grinding device of the prior art is prone to damage the diaphragm cavity and the surface to be ground.

[0008] To solve the above problems, the cylinder block grinding device provided by the present invention adopts the following technical solutions: A cylinder block grinding device includes a rotary mechanism for driving the cylinder block to rotate around its own axis extending vertically; it also includes a sealing groove grinding mechanism, an end face grinding mechanism, and a flange surface grinding mechanism for grinding the cylinder block in sequence. Each grinding mechanism includes a mounting seat arranged vertically, a diaphragm cavity sealing body slidably assembled up and down on the mounting seat, a sealing body elastic member applying a downward elastic force to the diaphragm cavity sealing body, and a grinding member arranged on the mounting seat. The grinding member is used to contact the part to be ground of the cylinder block after the diaphragm cavity sealing body closes the diaphragm cavity and the sealing body elastic member is compressed; The end face grinding mechanism and the flange surface grinding mechanism also include a cleaning brush slidably assembled up and down on the mounting seat. The cleaning brush has a lower cleaning position and an upper avoidance position when sliding up and down. When in the lower cleaning position, the bottom of the cleaning brush is located below the grinding member and contacts the surface to be ground of the cylinder block before the grinding member after the sealing body elastic member is compressed; when in the upper avoidance position, the bottom of the cleaning brush is located above the bottom surface of the grinding member; the cleaning brush and the grinding member are arranged at intervals around the axis of the cylinder block.

[0009] The diaphragm cavity sealing body can first close the diaphragm cavity of the cylinder block when descending with the mounting seat, preventing debris and sundries from entering the diaphragm cavity during the cleaning and grinding processes and causing damage to the diaphragm cavity. When the diaphragm cavity sealing body closes the diaphragm cavity and the mounting seat continues to descend, the sealing body elastic member will be compressed, and the cleaning brush and the grinding member will move downward relative to the bottom surface of the diaphragm sealing body, so as to realize cleaning and grinding. Since the cleaning brush itself can be lifted and has a lower cleaning position and an upper avoidance position, when grinding the end face and the flange surface, the cleaning brush can contact the end face and the flange surface before the grinding member, so as to clean during the rotation of the cylinder block and avoid damaging the end face and the flange surface due to the presence of debris and sundries. The cylinder block grinding device of the present invention can protect the processed diaphragm cavity before cleaning and grinding to prevent the diaphragm cavity from being damaged; it can first clean before grinding the end face and the flange surface to prevent the debris generated during grinding the sealing groove from remaining on the end face and prevent the debris generated during grinding the end face from remaining on the flange surface, thereby preventing damage to the end face and the flange surface.

[0010] As a further improvement, both the end face grinding mechanism and the flange face grinding mechanism include an annular seat slidably assembled on the mounting seat in the up and down direction and an annular seat elastic member. The cleaning brush is provided on the annular seat, and the annular seat elastic member is used to apply a downward elastic force to the annular seat to place the cleaning brush at the lower cleaning position. The annular seat is arranged outside the diaphragm cavity seal body, and the inner edge of the annular seat and the outer edge of the diaphragm cavity seal body are vertically aligned. When the diaphragm cavity seal body closes the diaphragm cavity and moves upward relative to the mounting seat, it pushes against the annular seat to drive the cleaning brush to the upper avoidance position.

[0011] The annular seat elastic member drives the cleaning brush to move downward. After the seal body elastic member is compressed, the diaphragm cavity seal body can push the annular seat upward, overcoming the elastic force of the annular seat elastic member to drive the cleaning brush to move upward. There is no need to set a power source for the up and down sliding of the cleaning brush, which can be achieved by the cooperation of the diaphragm cavity seal body and the annular seat elastic member, and the use cost is relatively low.

[0012] As a further improvement, multiple cleaning brushes and grinding members are arranged on both the end face grinding mechanism and the flange face grinding mechanism. The multiple cleaning brushes and the multiple grinding members are alternately arranged in sequence around the axis of the cylinder block.

[0013] As a further improvement, each grinding mechanism includes a telescopic member for driving the mounting seat to move up and down. The mounting seat includes an outer ring and a connecting member connecting the outer ring and the telescopic member. The diaphragm cavity seal body is located in the outer ring, and the seal body elastic member is located between the connecting member and the diaphragm cavity seal body.

[0014] As a further improvement, each grinding mechanism further includes a pressure ring located between the seal body elastic member and the connecting member. The seal body elastic member is connected to the pressure ring, and the pressure ring can rotate relative to the connecting member.

[0015] As a further improvement, the bottom of the diaphragm cavity seal body is an elastic structure.

[0016] After the diaphragm cavity seal body contacts the diaphragm cavity, the bottom of the diaphragm cavity seal body itself can be compressed. At the same time, in cooperation with the seal body elastic member, it can make the cleaning brush and the bottom surface of the diaphragm cavity seal body and the grinding member and the bottom surface of the diaphragm cavity seal body have a relatively large relative movement amount.

[0017] As a further improvement, the slewing mechanism includes a slewing table and a plurality of positioning shafts provided on the slewing table. The plurality of positioning shafts are used to correspond to a plurality of bolt through holes of the cylinder block one by one and are adapted to be inserted into the bolt through holes.

[0018] As a further improvement, the positioning shaft is telescopically assembled on the slewing table in the up and down direction, and a positioning shaft elastic member for driving the positioning shaft to extend upward is provided between the positioning shaft and the slewing table; The cylinder body polishing device also includes a cleaning mechanism, which includes the mounting seat, the diaphragm cavity sealing body and the sealing body elastic member, and also includes a cleaning piece corresponding to each bolt through hole of the cylinder body, the cleaning piece is used to extend into each bolt through hole of the cylinder body and push the positioning shaft downward out of the bolt through hole; The cleaning piece is rotatably mounted on the mounting seat around its own axis extending up and down, and the cleaning mechanism also includes a driving structure for driving each cleaning piece to rotate.

[0019] The sundries in the bolt through-hole can be cleaned out by the rotation of the cleaning piece, and at the same time, the cleaning piece can push the positioning shaft out of the bolt through-hole, thereby ensuring that all places of the bolt through-hole are cleaned.

[0020] As a further improvement, the rotary mechanism includes a support plate sleeved outside each positioning shaft and located above the turntable, and a support plate elastic member provided in the turntable, the support plate elastic member is used to push the support plate upward and form a gap between the support plate and the turntable; The top of the positioning shaft is provided with a stopper assembled horizontally and a stopper spring for driving the stopper to extend. The top of the stopper has a top plane and the side has a side slope, and the side slope is arranged from top to bottom and inclined toward the positioning shaft; the stopper is used to move between the support plate and the turntable when the cleaning member pushes the positioning shaft downward, the stopper extends and the top plane presses against the bottom of the support plate, and the elastic member of the positioning shaft pushes the stopper to make the support plate and the cylinder body move upward; The side of the positioning shaft is also provided with a chip groove, the top of which extends to the top surface of the positioning shaft. When the stopper pushes the support plate upward, the top and bottom of the chip groove are arranged on the upper and lower sides of the support plate.

[0021] As a further improvement, the cylinder body grinding device also includes a transplanting mechanism that drives the rotating mechanism to move horizontally, and a unloading mechanism. The unloading mechanism includes an inclined slide, a first guide plate and a second guide plate arranged on both horizontal sides of the top of the slide. The first guide plate and the second guide plate are both inclined and form an entrance for the cylinder body to enter. The first guide plate and the second guide plate are used to guide the cylinder body to slide on the support plate and slide into the slide when the cylinder body moves horizontally.

[0022] The unloading mechanism can realize automatic unloading, which is convenient for collecting the processed cylinder bodies.

[0023] The beneficial effects are: 1. When the diaphragm cavity seal descends with the mounting seat, it can first seal the diaphragm cavity of the cylinder block, preventing debris and sundries from entering the diaphragm cavity during the cleaning and grinding processes and causing damage to the diaphragm cavity. When the diaphragm cavity seal seals the diaphragm cavity and the mounting seat continues to descend, the seal elastic member will be compressed, and the cleaning brush and the grinding member will move downward relative to the bottom surface of the diaphragm seal, so that cleaning and grinding can be achieved. Since the cleaning brush itself can be lifted and lowered and has a lower cleaning position and an upper avoidance position, when grinding the end face and the flange face, the cleaning brush can contact the end face and the flange face prior to the grinding member, so as to perform cleaning when the cylinder block rotates, avoiding damage to the end face and the flange face due to the presence of debris and sundries during grinding. The cylinder block grinding device of the present invention can protect the processed diaphragm cavity before cleaning and grinding, preventing the diaphragm cavity from being damaged; it can perform cleaning prior to grinding the end face and the flange face, preventing the debris generated when grinding the seal groove from remaining on the end face and preventing the debris generated when grinding the end face from remaining on the flange face, thereby preventing damage to the end face and the flange face.

[0024] 2. The annular seat elastic member drives the cleaning brush to descend. After the seal elastic member is compressed, the diaphragm cavity seal can push the annular seat upward, overcoming the elastic force of the annular seat elastic member to drive the cleaning brush to ascend. There is no need to set a power source for the up and down sliding of the cleaning brush, which can be achieved by the cooperation of the diaphragm cavity seal and the annular seat elastic member, and the use cost is relatively low.

[0025] 3. After the diaphragm cavity seal contacts the diaphragm cavity, the bottom of the diaphragm cavity seal itself can be compressed, and at the same time, in cooperation with the seal elastic member, a relatively large relative movement amount can be achieved between the cleaning brush and the bottom surface of the diaphragm cavity seal and between the grinding member and the bottom surface of the diaphragm cavity seal.

[0026] 4. By rotating the cleaning member, the sundries in the bolt perforation can be cleaned up, and at the same time, the cleaning member can push the positioning shaft out of the bolt perforation, ensuring that all parts of the bolt perforation are cleaned.

[0027] 5. The unloading mechanism can achieve automatic unloading, facilitating the collection of the processed cylinder block. Description of the Drawings

[0028] Figure 1 is a schematic structural view of the cylinder block; Figure 2 is Figure 1 an enlarged view of part A in Figure 3 is a schematic structural view of the cylinder block grinding device; Figure 4 is a schematic structural view of the rotary mechanism in the cylinder block grinding device; Figure 5 is Figure 4 an enlarged view of part B in Figure 6It is the front view of the slewing mechanism; Figure 7 It is Figure 6 the sectional view taken along the C-C section in Figure 8 the top view of the positioning shaft; Figure 9 It is Figure 8 the sectional view taken along the D-D section in Figure 10 the perspective view of the sealing groove grinding mechanism; Figure 11 the top view of the sealing groove grinding mechanism; Figure 12 It is Figure 11 the sectional view taken along the E-E section in Figure 13 the perspective view of the end face grinding mechanism; Figure 14 the top view of the end face grinding mechanism; Figure 15 It is Figure 14 the sectional view taken along the F-F section in Figure 16 It is the structural schematic diagram of the end face cleaning structure, the second diaphragm cavity seal body, and the second diaphragm cavity seal body elastic member in the end face grinding mechanism combined together; Figure 17 the perspective view of the cooling hole grinding mechanism; Figure 18 the perspective view of the flange surface grinding mechanism; Figure 19 the top view of the flange surface grinding mechanism; Figure 20 It is Figure 19 the sectional view taken along the G-G section in Figure 21 the perspective view of the flange surface cleaning structure in the flange surface grinding mechanism; Figure 22 the perspective view of the cleaning mechanism; Figure 23 It is Figure 22 the enlarged view at H in Figure 24 It is the structural schematic diagram of the cylinder block grinding device in other embodiments.

[0029] Explanation of reference numerals: 100, cylinder block; 101, air hole; 102, bolt perforation; 103, diaphragm cavity; 104, sealing groove; 105, cooling hole; 106, end face; 107, flange surface; 201, base; 202, turntable; 203, fixed table; 300, Rotary mechanism; 301, Rotary table; 302, Drive shaft; 303, Support plate; 304, Positioning shaft; 305, Support plate elastic member; 306, Positioning shaft elastic member; 307, Central hole; 308, First positioning shaft through hole; 309, Through hole; 310, Stop block; 311, Stop block spring; 312, Side slope; 313, Top plane; 314, Chip removal groove; 315, Second positioning shaft through hole; 316, Protrusion 400, Sealing groove grinding mechanism; 401, First bracket; 402, First telescopic member; 403, First mounting seat; 404, First diaphragm cavity seal; 405, First diaphragm cavity seal elastic member; 406, First compression ring; 407, Grinding rod; 408, Cross plate; 409, Vertical plate; 410, First outer ring; 411, First connecting arm; 412, First inner retaining edge; 413, Arc bottom surface; 414, First outer retaining edge 500, End face grinding mechanism; 501, Second bracket; 502, Second telescopic member; 503, Second mounting seat; 504, Second diaphragm cavity seal; 505, Second diaphragm cavity seal elastic member; 506, Second compression ring; 507, End face grinding block; 508, Second outer ring; 509, Second connecting arm; 510, Ring inner plate; 511, Connecting ring; 512, Anti - detachment step; 513, Top ring; 514, Connecting column; 515, Cleaning brush mounting plate; 516, End face cleaning brush; 517, First spring 600, Cooling hole grinding mechanism; 601, Fixed bracket; 602, Grinding roller mounting seat; 603, Grinding roller 700, Flange surface grinding mechanism; 701, Third bracket; 702, Third telescopic member; 703, Third mounting seat; 704, Third diaphragm cavity seal; 705, Third diaphragm cavity seal elastic member; 706, Third compression ring; 707, Flange surface grinding block; 708, Flange surface cleaning structure; 709, Third outer ring; 710, Third connecting arm; 711, Top connecting edge; 712, Bottom retaining edge; 713, Third inner retaining edge; 714, Second annular seat; 715, Flange surface cleaning brush; 716, Second spring; 717, Guide hole; 718, Guide seat 800, Cleaning mechanism; 801, Fourth bracket; 802, Fourth telescopic member; 803, Fourth mounting seat; 804, Cleaning roller; 805, Side gear; 806, Drive motor; 807, Motor bracket; 808, Intermediate gear 901, Saddle; 902, First guide plate; 903, Second guide plate Detailed implementation manners

[0030] Embodiment of the cylinder block grinding device provided by the present invention: As Figures 3 to 23 shown, and with reference toFigure 1 and Figure 2 , the cylinder block grinding device is used to grind the cylinder block 100 on the gas side of the diaphragm compressor. The specific grinding parts include the sealing groove 104, the end face 106 where the sealing groove 104 is located, the flange face 107, and the cooling hole 105 on one side of the cylinder block 100. When grinding, the grinding is carried out in the order of the sealing groove 104, the end face 106, the cooling hole 105, and the flange face 107.

[0031] The cylinder block grinding device includes a base 201 and a transplanting mechanism, a rotary mechanism 300, a sealing groove grinding mechanism 400, an end face grinding mechanism 500, a cooling hole grinding mechanism 600, a flange face grinding mechanism 700, and a cleaning mechanism 800 installed on the base 201.

[0032] The rotary mechanism 300 is installed on the transplanting mechanism. The rotary mechanism 300 is used to drive the cylinder block 100 to rotate around its own axis extending vertically; the sealing groove grinding mechanism 400 is used to grind the sealing groove 104; the end face grinding mechanism 500 is used to grind the end face 106; the cooling hole grinding mechanism 600 is used to grind the inner wall of the cooling hole 105; the flange face grinding mechanism 700 is used to grind the flange face 107; the cleaning mechanism 800 is used to clean the sundries entering the bolt perforation 102.

[0033] As Figure 3 shown, the transplanting mechanism here includes a turntable 202. The turntable 202 is rotationally assembled on the base 201 around its axis extending vertically. The sealing groove grinding mechanism 400, the end face grinding mechanism 500, the cooling hole grinding mechanism 600, the flange face grinding mechanism 700, and the cleaning mechanism 800 are arranged in sequence around the axis of the turntable 202. Six fixing platforms 203 are evenly distributed on the turntable 202 in the circumferential direction. Specifically, a circular installation groove can be opened on the top surface of the fixing platform 203. There are six rotary mechanisms 300, and the six rotary mechanisms 300 correspond to the six fixing platforms 203 one by one. In other embodiments, the transplanting mechanism can be a conveyor belt, which drives the cylinder block 100 to move linearly in translation, and the sealing groove grinding mechanism 400, the end face grinding mechanism 500, the cooling hole grinding mechanism 600, the flange face grinding mechanism 700, and the cleaning mechanism 800 are arranged in sequence along the translation direction of the cylinder block 100.

[0034] As Figures 4 to 9 shown, the rotary mechanism 300 includes a rotary table 301, a driving shaft 302, a support plate 303, a positioning shaft 304, a support plate elastic member 305, and a positioning shaft elastic member 306.

[0035] The turntable 301 is placed on the fixed table 203. Specifically, the bottom of the turntable 301 is placed in the installation groove on the top surface of the fixed table 203. The drive shaft 302 is fixed to the bottom of the turntable 301. The drive shaft 302 penetrates downward through the fixed table 203 and the turntable 202, and is connected to the drive shaft 302 by fixedly installing a motor on the turntable 202, thereby driving the turntable 301 to rotate.

[0036] A central hole 307 and a first positioning shaft through hole 308 extending vertically are formed on the top surface of the turntable 301. The central hole 307 is located at the center of the turntable 301. A plurality of first positioning shaft through holes 308 are evenly arranged around the rotation axis of the turntable 301. Both the central hole 307 and the first positioning shaft through hole 308 are blind holes.

[0037] The number of positioning shafts 304 is equal to and corresponds one-to-one with the number of first positioning shaft through holes 308. The lower end of the positioning shaft 304 penetrates into the first positioning shaft through hole 308. The positioning shaft elastic member 306 is located in the first positioning shaft through hole 308. Here, the positioning shaft elastic member 306 is a compression spring. The lower end of the positioning shaft elastic member 306 is fixed to the bottom of the first positioning shaft through hole 308, and the upper end is fixed to the bottom of the positioning shaft 304. The positioning shaft elastic member 306 applies an upward elastic force to the positioning shaft 304. When the positioning shaft 304 receives a downward top pressure, it can compress the positioning shaft elastic member 306 and move the positioning shaft 304 downward.

[0038] A horizontally penetrating through hole 309 is formed at the top of the positioning shaft 304. Two stoppers 310 are slidably assembled in the through hole 309. The two stoppers 310 are connected by a stopper spring 311. Here, the stopper spring 311 is a compression spring. On the opposite sides of the two stoppers 310, there are side inclined surfaces 312. The inclination directions of the two side inclined surfaces 312 are from top to bottom and inclined toward each other. The top of the stopper 310 has a top plane 313. When the stoppers 310 are not subjected to external forces, the side inclined surfaces 312 and the top plane 313 of the two stoppers 310 are both located outside the positioning shaft 304. When the side inclined surfaces 312 of the stoppers 310 receive an upward top thrust, the two stoppers 310 can approach each other and retract into the through hole 309. Among them, there is a certain distance between the through hole 309 and the top of the positioning shaft 304.

[0039] A chip removal groove 314 is also formed on the top side of the positioning shaft 304. The chip removal groove 314 extends upward to the top surface of the positioning shaft 304. That is to say, the top and side of the positioning shaft 304 are connected through the chip removal groove 314, and the debris on the top of the positioning shaft 304 can be flushed to the side of the positioning shaft 304 through the chip removal groove 314. The chip removal groove 314 and the through hole 309 are disposed on adjacent sides of the positioning shaft 304. For example, if the through hole 309 penetrates the positioning shaft 304 in the left-right direction, then the chip removal groove 314 is formed on one side of the positioning shaft 304 in the front-back direction. Preferably, the chip removal groove 314 is formed on the side facing away from the rotation axis of the rotary table 301.

[0040] The support plate 303 is located above the rotary table 301. A plurality of second positioning shaft through holes 315 are formed in the support plate 303. The number of the second positioning shaft through holes 315 is equal to and corresponds to the number of the positioning shafts 304 one by one. The positioning shafts 304 pass through the second positioning shaft through holes 315 of the support plate 303. A protrusion 316 is provided at the center position of the bottom of the support plate 303. The protrusion 316 is vertically aligned with the center hole 307 of the rotary table 301, and the protrusion 316 can extend into the center hole 307, so that the bottom surface of the support plate 303 is attached to the top surface of the rotary table 301.

[0041] The support plate elastic member 305 is located in the center hole 307. Here, the support plate elastic member 305 is a compression spring. The lower end of the support plate elastic member 305 is fixed to the bottom of the center hole 307. The upper end of the support plate elastic member 305 is not connected to the protrusion 316, and the support plate elastic member 305 can only push the protrusion 316 upward. In other embodiments, the protrusion 316 on the support plate 303 can be removed.

[0042] As Figures 10 to 12 shown, the seal groove grinding mechanism 400 includes a first bracket 401, a first telescopic member 402, a first mounting seat 403, a first diaphragm chamber seal 404, a first diaphragm chamber seal elastic member 405, a first pressure ring 406, and a seal groove grinding member.

[0043] The first bracket 401 is an L-shaped bracket, including a horizontal plate 408 and a vertical plate 409. The horizontal plate 408 is fixed to the top of the vertical plate 409 and is suspended. The vertical plate 409 is fixed to the base 201.

[0044] The first telescopic member 402 is fixed to the horizontal plate 408. Here, the first telescopic member 402 is a cylinder. In other embodiments, the first telescopic member 402 can be a structure such as an electric push rod.

[0045] The first mounting seat 403 is fixed to the output end of the first telescopic member 402, and the first telescopic member 402 can drive the first mounting seat 403 to move up and down. The first mounting seat 403 includes a first outer ring 410, a first connecting member, and a first inner retaining edge 412. The first connecting member includes a plurality of first connecting arms 411, and the plurality of first connecting arms 411 are arranged around the first telescopic member 402. One end of the first connecting arm 411 is connected to the first telescopic member 402, and the other end is connected to the inner side of the top of the first outer ring 410. The first inner retaining edge 412 is fixed to the inner side of the bottom of the first outer ring 410. Preferably, the first inner retaining edge 412 is assembled separately with the first outer ring 410.

[0046] The function of the first diaphragm cavity seal 404 is to seal the diaphragm cavity 103 of the cylinder block 100 to prevent debris from falling into the diaphragm cavity 103 during grinding. The first diaphragm cavity seal 404 has an arc-shaped bottom surface 413, and the arc-shaped bottom surface 413 of the first diaphragm cavity seal 404 can be attached to the diaphragm cavity 103 during use. A first outer retaining edge 414 is fixed to the outer side of the top of the first diaphragm cavity seal 404. Here, the first diaphragm cavity seal 404 includes a rigid plate at the top and an elastomer at the bottom, and the rigid plate and the elastomer can be fixed together by means such as gluing or bolt connection. The first outer retaining edge 414 is formed on the rigid plate, and the elastomer can be made of materials such as rubber or polyurethane, which has a certain elasticity after being compressed.

[0047] The first diaphragm cavity seal elastic member 405 is located at the top of the first diaphragm cavity seal 404, and the first pressing ring 406 is fixed to the top of the first diaphragm cavity seal elastic member 405. Here, the first diaphragm cavity seal elastic member 405 is a compression spring, which applies a downward elastic force to the first diaphragm cavity seal 404. The lower end of the first diaphragm cavity seal elastic member 405 is connected to the first diaphragm cavity seal 404, and the first pressing ring 406 is connected to the first connecting arm 411. The first pressing ring 406 and the first connecting arm 411 only have a pressing relationship and no connection relationship, so that the first diaphragm cavity seal 404 can rotate with the cylinder block 100. In other embodiments, the first pressing ring 406 can be fixed to the first connecting arm 411, and the first diaphragm cavity seal elastic member 405 and the first diaphragm cavity seal 404 only have a pressing relationship and no connection relationship.

[0048] The seal groove grinding member is a grinding rod 407, and the grinding rod 407 is fixed to the bottoms of the first outer ring 410 and the first inner retaining edge 412. Here, the grinding rod 407 has multiple circles arranged inside and outside in sequence, and the number of circles is equal to the number of circles of the seal groove 104 and is vertically aligned. Each circle of the grinding rod 407 has a plurality of them, and the plurality of grinding rods 407 in each circle are evenly spaced in the circumferential direction. Here, the material of the grinding rod 407 can be materials such as silicon carbide or alumina.

[0049] In the initial state, the first diaphragm cavity seal 404 is pushed downward by the first diaphragm cavity seal elastic member 405. The arc-shaped bottom surface 413 of the first diaphragm cavity seal 404 is located below the bottom surface of the grinding rod 407. When the first mounting seat 403 moves downward, the first diaphragm cavity seal 404 first contacts the diaphragm cavity 103 of the cylinder block 100 and achieves sealing. As the first mounting seat 403 continues to move downward, the first diaphragm cavity seal 404 itself is compressed, and at the same time, the first diaphragm cavity seal elastic member 405 is compressed. The grinding rod 407 moves downward relative to the arc-shaped bottom surface 413, and the grinding rod 407 extends into the sealing groove 104.

[0050] As Figures 13 to 16 shown, the function of the end face grinding mechanism 500 is to seal the diaphragm cavity 103 of the cylinder block 100 and clean and grind the end face 106. The end face grinding mechanism 500 includes a second bracket 501, a second telescopic member 502, a second mounting seat 503, a second diaphragm cavity seal 504, a second diaphragm cavity seal elastic member 505, a second pressure ring 506, an end face cleaning structure, and an end face grinding member.

[0051] Among them, the structures of the second bracket 501, the second telescopic member 502, the second diaphragm cavity seal 504, the second diaphragm cavity seal elastic member 505, and the second pressure ring 506 are the same as the corresponding structures in the seal groove grinding mechanism 400, and will not be elaborated here.

[0052] The second mounting seat 503 includes a second outer ring 508, a second connecting member, and an annular inner plate 510. The second connecting member includes a second connecting arm 509 and a connecting ring 511. The structures of the second outer ring 508 and the second connecting arm 509 are the same as the structures of the first outer ring 410 and the first connecting arm 411, and will not be elaborated here. The annular inner plate 510 is located at the inner bottom of the second outer ring 508. The annular inner plate 510 is fixed on the second outer ring 508 or integrally formed with the second outer ring 508.

[0053] A ring groove is formed on the bottom surface of the annular inner plate 510. At the same time, through holes extending vertically are also formed on the annular inner plate 510. There are multiple through holes, and the multiple through holes are arranged at intervals. The lower ends of the through holes communicate with the ring groove. An anti-detachment step 512 is formed on the inner top surface of the annular inner plate 510. The anti-detachment step 512 is used for anti-detachment cooperation with the outer retaining edge on the second diaphragm cavity seal 504 to prevent the second diaphragm cavity seal 504 from falling downward.

[0054] The function of the end face cleaning structure is to clean the end face 106 of the cylinder block 100, including a first annular seat, an end face cleaning brush 516, and a first annular seat elastic member. The first annular seat includes a top ring 513, a connecting column 514, and a cleaning brush mounting plate 515. The connecting columns 514 correspond one by one to the perforations on the annular inner plate 510, and the connecting columns 514 pass through the perforations vertically. The top ring 513 is connected to the tops of the connecting columns 514, and the inner edge of the top ring 513 is vertically aligned with the outer edge of the second diaphragm cavity seal 504.

[0055] The cleaning brush mounting plates 515 are connected to the bottoms of the connecting columns 514. There are multiple cleaning brush mounting plates 515, and the end face cleaning brushes 516 are mounted on the cleaning brush mounting plates 515.

[0056] The first annular seat elastic member is a first spring 517, which is a compression spring. The lower end of the first spring 517 is fixed on the top ring 513, and the upper end is fixed on the second connecting arm 509, or the upper end of the first spring 517 only presses against the second connecting arm 509 without a connection relationship with the second connecting arm 509.

[0057] The end face grinding member is an end face grinding block 507. The end face grinding block 507 is fixed in the annular groove at the bottom of the annular inner plate 510, and the bottom surface of the end face grinding block 507 is located below the bottom surface of the annular inner plate 510. There are multiple end face grinding blocks 507, and the multiple end face grinding blocks 507 and the multiple end face cleaning brushes 516 are arranged alternately in sequence along the circumferential direction of the top ring 513.

[0058] In the initial state, the arc bottom surface of the second diaphragm cavity seal 504 is located below the end face cleaning brush 516, the bottom surface of the end face cleaning brush 516 is located below the bottom surface of the end face grinding block 507, and the end face cleaning brush 516 is in the lower cleaning position. After the second diaphragm cavity seal 504 presses against the diaphragm cavity 103, the second diaphragm cavity seal 504 itself is compressed and compresses the second diaphragm cavity seal elastic member 505; as the second telescopic member 502 continues to extend, the end face cleaning brush 516 contacts the end face 106 of the cylinder block 100, and the end face 106 can be cleaned when the cylinder block 100 rotates. As the second telescopic member 502 continues to extend, the second diaphragm cavity seal elastic member 505 continues to be compressed, and the outer edge of the second diaphragm cavity seal 504 pushes the top ring 513 upward, overcoming the elastic force of the first spring 517 to move the end face cleaning brush 516 upward, exposing the end face grinding block 507. The end face cleaning brush 516 is in the upper avoidance position, and the end face grinding block 507 contacts the end face 106, and the end face 106 is ground as the cylinder block 100 rotates.

[0059] As Figure 17As shown, the cooling hole grinding mechanism 600 includes a fixed bracket 601, a grinding roll mounting seat 602, and a grinding roll 603. The fixed bracket 601 is fixedly installed on the base 201. The grinding roll mounting seat 602 is installed on the fixed bracket 601. The grinding roll 603 is telescopically and rotatably assembled on the grinding roll mounting seat 602. A driving component for driving the grinding roll 603 to extend and retract and rotate is also installed in the grinding roll mounting seat 602. Specifically, the driving component may include a hydraulic cylinder and a motor fixed on the output end of the hydraulic cylinder. The grinding roll 603 is installed on the output shaft of the motor. The hydraulic cylinder drives the grinding roll 603 to extend and retract, and the motor drives the grinding roll 603 to rotate.

[0060] As Figures 18 to 21 shown, the function of the flange surface grinding mechanism 700 is to clean and grind the flange surface 107 of the cylinder block 100. The flange surface grinding mechanism 700 includes a third bracket 701, a third telescopic member 702, a third mounting seat 703, a third diaphragm cavity seal 704, a third diaphragm cavity seal elastic member 705, a third pressing ring 706, a flange surface grinding member, and a flange surface cleaning structure 708.

[0061] Among them, the structures of the third bracket 701, the third telescopic member 702, the third diaphragm cavity seal 704, the third diaphragm cavity seal elastic member 705, and the third pressing ring 706 are the same as the corresponding structures of the seal groove grinding mechanism 400 and will not be elaborated here.

[0062] The third mounting seat 703 includes a third outer ring 709, a third connecting member, a guide seat 718, and a bottom retaining edge 712. Here, the third connecting member includes a third connecting arm 710 and a top connecting edge 711. Among them, the top connecting edge 711 is integrally formed with the third outer ring 709. The bottom retaining edge 712 is located inside the third outer ring 709 and is assembled with the third outer ring 709 separately. One end of the third connecting arm 710 is fixed on the third telescopic member 702, and the other end is fixed on the top connecting edge 711.

[0063] The guide seat 718 is fixed on the third connecting arm 710, and the guide seat 718 is coaxially arranged with the third outer ring 709. There are a plurality of guide blocks arranged at circumferential intervals on the top of the guide seat 718. A third inner retaining edge 713 is fixedly installed on the inner side of the bottom of the guide seat 718 to cooperate with the outer retaining edge on the third diaphragm cavity seal 704 to prevent the third diaphragm cavity seal 704 from falling off.

[0064] The flange surface grinding member is a flange surface grinding block 707, and its bottom surface is located below the bottom surface of the third mounting seat 703.

[0065] The flange surface cleaning structure 708 includes a second annular seat 714, a flange surface cleaning brush 715, and a second annular seat elastic member. Here, the second annular seat elastic member is a second spring 716. The second spring 716 is a compression spring and is press-fitted between the second annular seat 714 and the top connecting edge 711.

[0066] A plurality of guide holes 717 are formed in the second annular seat 714. The guide blocks on the guide seat 718 pass through the guide holes 717 to guide the up and down movement of the second annular seat 714. The inner edge of the second annular seat 714 is directly above the outer edge of the third diaphragm cavity seal 704. The flange surface cleaning brush 715 is installed at the bottom of the second annular seat 714. Multiple flange surface cleaning brushes 715 and multiple flange surface grinding blocks 707 are alternately arranged in the circumferential direction in sequence.

[0067] In the initial state, the arc bottom surface of the third diaphragm cavity seal 704 is located below the flange surface cleaning brush 715. The bottom surface of the flange surface cleaning brush 715 is located below the bottom surface of the flange surface grinding block 707, and the flange surface cleaning brush 715 is in the lower cleaning position. After the third diaphragm cavity seal 704 presses against the diaphragm cavity 103, the third diaphragm cavity seal 704 itself is compressed and compresses the third diaphragm cavity seal elastic member 705. As the third telescopic member 702 continues to extend, the flange surface cleaning brush 715 contacts the flange surface 107, and the flange surface 107 can be cleaned when the cylinder block 100 rotates. As the third telescopic member 702 continues to extend, the third diaphragm cavity seal elastic member 705 continues to be compressed, and the outer edge of the third diaphragm cavity seal 704 pushes the top second annular seat 714 upward, overcoming the elastic force of the second spring 716 to move the second annular seat 714 and the flange surface cleaning brush 715 upward, exposing the flange surface grinding block 707. The flange surface cleaning brush 715 is in the upper avoidance position, and the flange surface grinding block 707 contacts the flange surface 107, and the flange surface 107 is ground as the cylinder block 100 rotates.

[0068] As Figure 22 、 Figure 23 shown, the cleaning mechanism 800 is used to clean the bolt perforation 102. When grinding the seal groove 104, the end face 106, and the flange surface 107, debris will be generated. Part of the debris remains on the flange surface 107, and part of the debris falls into the bolt perforation 102.

[0069] The cleaning mechanism 800 includes a fourth bracket 801, a fourth telescopic member 802, a fourth mounting seat 803, a fourth diaphragm cavity seal, a fourth diaphragm cavity seal elastic member, a cleaning member, and a driving structure.

[0070] Among them, the structures of the fourth bracket 801, the fourth telescopic member 802, the fourth mounting seat 803, the fourth diaphragm chamber seal, and the elastic member of the fourth diaphragm chamber seal are the same as the corresponding structures in the seal groove grinding mechanism 400, and will not be elaborated here.

[0071] The cleaning member here is a cleaning roller 804. The outer diameter of the cleaning roller 804 is the same as the inner diameter of the bolt through-hole 102. The rotation of the cleaning roller 804 can clean the bolt through-hole 102. In other embodiments, the cleaning member can be a cleaning brush. There are multiple cleaning rollers 804, and the multiple cleaning rollers 804 correspond to the multiple bolt through-holes 102 one by one. The cleaning roller 804 is rotatably mounted on the fourth mounting seat 803 around an axis extending vertically, and the cleaning roller 804 penetrates through the fourth mounting seat 803 vertically.

[0072] The driving structure is used to drive each cleaning roller 804 to rotate around its own axis. The driving structure includes an intermediate gear 808, side gears 805, a driving motor 806, and a motor bracket 807. The intermediate gear 808 is rotatably assembled on the fourth telescopic member 802, and specifically can be installed by bearings. The intermediate gear 808 is located above the fourth mounting seat 803. There are multiple side gears 805, and the multiple side gears 805 are respectively fixed on the tops of the respective cleaning rollers 804, and each side gear 805 meshes with the intermediate gear 808.

[0073] The driving motor 806 is fixed on the fourth mounting seat 803 through the motor bracket 807. The driving motor 806 is connected to one of the cleaning rollers 804. By driving the side gear 805 on one cleaning roller 804 to rotate, the intermediate gear 808 is driven to rotate, and then the intermediate gear 808 drives the other side gears 805 and cleaning rollers 804 to rotate.

[0074] Usage process: Taking the transfer and processing of one of the cylinders 100 as an example for introduction, correspondingly, only one of the slewing mechanisms will be taken as an example for introduction.

[0075] In the initial state, the positioning shaft 304 is pushed upward by the positioning shaft elastic member 306, the stoppers 310 on the positioning shaft extend out, and the support plate 303 is supported on the top planes 313 of the two stoppers 310. The cylinder block 100 is placed on the support plate 303 manually or by a manipulator, and the bolt perforations 102 on the cylinder block 100 are placed directly above and below the respective positioning shafts 304. Press down the cylinder block 100, and the cylinder block 100 pushes the support plate 303 and the positioning shaft 304 to move downward together, and compresses the support plate elastic member 305, so that the bottom surface of the support plate 303 fits against the top surface of the rotary table 301. When the stopper 310 enters the first positioning shaft perforation 308, the side inclined surface 312 is pushed upward, and the stopper 310 retracts into the positioning shaft 304. Subsequently, under the action of the positioning shaft elastic member 306, the positioning shaft 304 extends upward into the bolt perforation 102 of the cylinder block 100, but the top surface of the positioning shaft 304 is still located in the bolt perforation 102 of the cylinder block 100, completing the positioning of the cylinder block 100. After removing the external force on the cylinder block 100, the support plate elastic member 305 pushes the support plate 303 and the cylinder block 100 upward, and there is a gap between the support plate 303 and the rotary table 301.

[0076] The turntable 202 drives the rotary mechanism 300 to rotate, and successively completes the grinding of the sealing groove 104, the end face 106, the cooling hole 105, and the flange surface 107. When grinding the sealing groove 104, first close the diaphragm cavity 103, and then grind the sealing groove 104. When grinding the end face 106, first close the diaphragm cavity 103, then clean the end face 106, and then grind the end face 106. When grinding the flange surface 107, first close the diaphragm cavity 103, then clean the flange surface 107, and then grind the flange surface 107. When grinding the sealing groove 104, the end face 106, and the flange surface 107, each sealing body presses on the cylinder block 100, so that the cylinder block 100 presses down the support plate 303, and the support plate 303 and the rotary table 301 fit together.

[0077] After the grinding of the flange surface 107 is completed, the turntable 202 drives the cylinder block 100 to rotate to the cleaning mechanism 800. The fourth telescopic member 802 drives the fourth mounting seat 803 to move downward, the cleaning roller 804 extends into the bolt perforation 102 and pushes the positioning shaft 304 downward, and the fourth diaphragm cavity sealing body gradually closes the diaphragm cavity 103. Then, start the drive motor 806 to drive each cleaning roller 804 to rotate, and clean the bolt perforation 102. During the cleaning process, flush the cleaning liquid to the positions where the flange surface 107 and the bolt perforation 102 are located for auxiliary cleaning. The cleaning roller 804 keeps pressing down the positioning shaft 304 until the stopper 310 moves below the support plate 303.

[0078] Since the cleaning roller 804 presses down on the positioning shaft 304 instead of the cylinder block 100, there is a gap between the support plate 303 and the rotary table 301 under the action of the support plate elastic member 305. When the stopper 310 moves to this gap, it can protrude outward, and the top plane 313 of the stopper 310 abuts against the support plate 303. Subsequently, the fourth telescopic member 802 retracts upward, and the positioning shaft 304 moves upward under the action of the positioning shaft elastic member 306, driving the support plate 303 and the cylinder block 100 to rise together. At this time, the cleaning liquid continues to wash, the top of the chip discharge groove 314 on the positioning shaft 304 is located in the second positioning shaft through hole 315 of the support plate 303, and the bottom of the chip discharge groove 314 is located below the support plate 303. The debris washed by the cleaning liquid can flow to the lower part of the support plate 303 through the chip discharge groove 314.

[0079] Subsequently, the turntable 202 rotates, and the processed cylinder block 100 can be taken away manually or by a robot.

[0080] In other embodiments, such as Figure 24 As shown, on the basis of the above embodiments, the cylinder block grinding device of this embodiment further includes a discharging mechanism. The discharging mechanism is located downstream of the cleaning mechanism 800 in the rotation direction. The function of the discharging mechanism is to discharge the cylinder block 100 after passing through the cleaning mechanism 800. The discharging mechanism includes an inclined slide plate 901, a first guide plate 902, and a second guide plate 903. The slide plate 901 is fixedly arranged, and the top end of the slide plate 901 extends above the turntable 202.

[0081] The first guide plate 902 and the second guide plate 903 are fixed on both sides of the upper end of the slide plate 901. The first guide plate 902 and the second guide plate 903 are both inclined, forming an inlet for guiding the cylinder block 100 to enter. It can guide the cylinder block 100 placed on the support plate 303 to slide in the direction of the slide plate 901 and finally fall on the slide plate 901. The bottoms of the first guide plate 902 and the second guide plate 903 are both located above the support plate 303 and will not block the support plate 303.

[0082] After cleaning is completed, the turntable continues to drive the rotary mechanism 300 to rotate. Under the guidance of the first guide plate 902 and the second guide plate 903, the cylinder block 100 enters the slide plate 901 for discharging, and then a new cylinder block 100 is reinstalled for the next cycle.

[0083] In this embodiment, the slewing mechanism 300 includes a floating support plate 303. At the top of the positioning shaft 304, a retractable stopper 310 and a chip discharge groove 314 are installed, so as to ensure that the cleaning roller 804 can completely push the positioning shaft 304 out of the bolt through-hole 102 and achieve chip discharge. In other embodiments, the support plate 303, the stopper 310, and the chip discharge groove 314 can be cancelled, and a chip discharge channel communicating with the first positioning shaft through-hole 308 is provided on the top surface of the turntable 301. During cleaning, the cleaning roller 804 completely pushes the positioning shaft 304 downward out of the bolt through-hole 102, and the flushing liquid carries the debris and is discharged through the chip discharge channel.

[0084] In other embodiments, if it is not necessary to clean the bolt through-hole 102, the positioning shaft 304 can be set to a fixed structure, and the clamping cylinder 100 is required for loading and unloading. In other embodiments, the slewing mechanism 300 can include a fixture for clamping the outer peripheral surface of the cylinder block 100, and at this time, the positioning shaft 304 can be cancelled.

[0085] In this embodiment, both the end face grinding mechanism 500 and the flange face grinding mechanism 700 include cleaning brushes. The cleaning brushes are connected to the annular seat. When the diaphragm cavity seal moves upward relative to the mounting seat, it can push the annular seat upward, and then push the cleaning brush upward. In other embodiments, a telescopic member can be additionally provided on the mounting seat, and the cleaning brush is installed at the output end of the telescopic member, and the telescopic member is used to drive the cleaning brush to lift.

[0086] In addition, in the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

Claims

1. A cylinder body grinding device, comprising a rotary mechanism for driving the cylinder body to rotate around an axis extending up and down; characterized in that: It also includes a sealing groove grinding mechanism, an end face grinding mechanism, and a flange face grinding mechanism for grinding the cylinder body in sequence, each grinding mechanism includes a mounting seat arranged in a lifting manner, a diaphragm cavity sealing body slidably assembled on the mounting seat, a sealing body elastic member applying a downward elastic force to the diaphragm cavity sealing body, and a grinding member provided on the mounting seat, the grinding member being used to contact the part of the cylinder body to be ground after the diaphragm cavity sealing body closes the diaphragm cavity and the sealing body elastic member is compressed; The end face grinding mechanism and the flange face grinding mechanism also include a cleaning brush which is slidably assembled on the mounting seat. The cleaning brush has a lower cleaning position and an upper avoidance position when sliding up and down. When in the lower cleaning position, the bottom of the cleaning brush is located below the grinding piece and contacts the surface to be ground of the cylinder body before the grinding piece after the elastic part of the sealing body is compressed; when in the upper avoidance position, the bottom of the cleaning brush is located above the bottom surface of the grinding piece; the cleaning brush and the grinding piece are arranged at intervals around the axis of the cylinder body.

2. The cylinder body grinding device according to claim 1, characterized in that: The end surface grinding mechanism and the flange surface grinding mechanism both include an annular seat and an annular seat elastic member slidably assembled on the mounting seat in the up-down direction, the cleaning brush is arranged on the annular seat, and the annular seat elastic member is used to apply a downward elastic force to the annular seat to place the cleaning brush in the lower cleaning position; The annular seat is arranged outside the diaphragm cavity sealing body, and the inner edge of the annular seat and the outer edge of the diaphragm cavity sealing body are vertically opposite to each other. When the diaphragm cavity sealing body closes the diaphragm cavity and moves upward relative to the mounting seat, it pushes the annular seat to drive the cleaning brush to the upper avoidance position.

3. The cylinder body grinding device according to claim 2, characterized in that: There are multiple cleaning brushes and grinding pieces on the end surface grinding mechanism and the flange surface grinding mechanism, and the multiple cleaning brushes and the multiple grinding pieces are alternately arranged in sequence around the axis of the cylinder body.

4. The cylinder body grinding device according to claim 1, characterized in that: Each polishing mechanism includes a telescopic member driving the mounting seat to rise and fall. The mounting seat includes an outer ring and a connecting member connecting the outer ring and the telescopic member. The diaphragm cavity sealing body is located in the outer ring, and the sealing body elastic member is located between the connecting member and the diaphragm cavity sealing body.

5. The cylinder body grinding device according to claim 4, characterized in that: Each grinding mechanism also includes a pressure ring located between the sealing body elastic member and the connecting member, the sealing body elastic member is connected to the pressure ring, and the pressure ring can rotate relative to the connecting member.

6. The cylinder body grinding device according to any one of claims 1 to 5, characterized in that: The bottom of the diaphragm chamber sealing body is an elastic structure.

7. The cylinder body grinding device according to any one of claims 1 to 5, characterized in that: The rotary mechanism comprises a rotary table and a plurality of positioning shafts arranged on the rotary table. The plurality of positioning shafts are used to correspond one by one to a plurality of bolt through holes of the cylinder body and are adapted to be inserted into the bolt through holes.

8. The cylinder body grinding device according to claim 7, characterized in that: The positioning shaft is telescopically assembled on the turntable in the up-down direction, and a positioning shaft elastic member driving the positioning shaft to extend upward is provided between the positioning shaft and the turntable; The cylinder body polishing device also includes a cleaning mechanism, which includes the mounting seat, the diaphragm cavity sealing body and the sealing body elastic member, and also includes a cleaning piece corresponding to each bolt through hole of the cylinder body, the cleaning piece is used to extend into each bolt through hole of the cylinder body and push the positioning shaft downward out of the bolt through hole; The cleaning piece is rotatably mounted on the mounting seat around its own axis extending up and down, and the cleaning mechanism also includes a driving structure for driving each cleaning piece to rotate.

9. The cylinder body grinding device according to claim 8, characterized in that: The rotary mechanism includes a support plate sleeved outside each positioning shaft and located above the turntable, and a support plate elastic member arranged in the turntable, the support plate elastic member is used to push the support plate upward and form a gap between the support plate and the turntable; The top of the positioning shaft is provided with a stopper assembled horizontally and telescopically and a stopper spring driving the stopper to extend, the top of the stopper has a top plane, and the side has a side inclined surface, and the side inclined surface is arranged from top to bottom and inclined toward the positioning shaft; The stopper is used to move between the support plate and the turntable when the cleaning part pushes the positioning shaft downward, the stopper extends and the top plane presses against the bottom of the support plate, and the positioning shaft elastic part pushes the stopper to make the support plate and the cylinder body move upward; The side of the positioning shaft is also provided with a chip groove, the top of which extends to the top surface of the positioning shaft. When the stopper pushes the support plate upward, the top and bottom of the chip groove are arranged on the upper and lower sides of the support plate.

10. The cylinder body grinding device according to claim 9, characterized in that: The cylinder body grinding device also includes a transplanting mechanism that drives the rotary mechanism to move horizontally, and a unloading mechanism. The unloading mechanism includes an inclined slide, a first guide plate and a second guide plate arranged on both horizontal sides of the top of the slide. The first guide plate and the second guide plate are both inclined and form an entrance for the cylinder body to enter. The first guide plate and the second guide plate are used to guide the cylinder body to slide on the support plate and slide into the slide when the cylinder body moves horizontally.

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