Annular casting surface polishing device

Abstract

The invention relates to the technical field of casting machining, in particular to a ring casting surface polishing device which comprises a loading machine body, and the loading machine body comprises a bearing platform horizontally arranged; the first support and the second support are vertically welded to the left end and the right end of the bearing platform respectively; and the extension bracket is integrally welded on the first bracket with the guide slot hole. A load bearing platform, a first support, a second support, an extension support and a guide long hole form a load bearing machine body of a portal frame structure, a ball screw and a lifting nut which are driven by a second driving motor to rotate are arranged on a second support, and a polisher installed through a lifting hanging bracket and a telescopic hanging bracket is controlled to vertically ascend and descend according to the inner and outer curved surface polishing requirement of the circular ring casting, so that the polisher horizontally stretches out and draws back; therefore, fixed-point polishing is conducted on the circular ring casting located at the center line position of the load-carrying machine body.

Description

Technical Field

[0001] The invention relates to the technical field of casting processing, in particular to a surface grinding device for annular castings. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling and subsequent processing such as polishing, objects with a certain shape, size and performance are obtained.

[0003] The existing castings are more commonly in planar structures, but there are also a small number of curved structures. Curved structures are different from planar structures, and the existing grinding devices cannot perform grinding operations on special curved structures, especially the circular ring castings have inner and outer curved surfaces. The existing grinding devices use a single limiting structure, such as the outer surface grinding device for cylindrical hardware castings disclosed in the announcement number CN112372386B, and the surface grinding device for circular ring castings disclosed in the announcement number CN108527056B. The former automatically shrinks and adjusts the fixing ring and the built-in rod, and the fixing ring fits on the outer side of the lower end of the cylindrical hardware casting, but there is still a blind spot on the outer side of the cylindrical hardware casting that is blocked by the fixing ring and the built-in rod. The grinding position can only be adjusted by loosening and tightening the clamping part, and a single fixed limit structure can only act on a certain part of the cylindrical hardware casting. A single force point cannot guarantee the stability of the clamping limit; the latter can be adjusted by adjusting the three support rods to clamp the circular ring casting from the inside to the outside or from the outside to the inside, but in order to ensure all-round grinding, the circular ring casting can only be frequently loosened and tightened, or multiple sets of limit structures are used, and a corresponding driving structure is also required, which can easily increase the manufacturing cost. Repeated adjustments cannot guarantee the accuracy of the limit size, which is not only time-consuming and labor-intensive but also easily causes grinding position errors, seriously limiting the grinding processing level. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is difficult to perform transposition fixation and flexible adjustment on the circular ring casting, which affects the grinding processing of special structures and parts, and to propose a circular ring casting surface grinding device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A surface grinding device for a circular ring casting comprises a load-bearing body, wherein the load-bearing body comprises: A load-bearing platform, wherein the load-bearing platform is arranged horizontally; A first bracket and a second bracket, wherein the first bracket and the second bracket are vertically welded to the left and right ends of the load-bearing platform respectively; An extension bracket and a guide slot, wherein the extension bracket is integrally welded to the first bracket, and the guide slot is provided in the second bracket; The load-carrying machine body is provided with: A first drive motor, wherein the first drive motor is fixedly mounted on the first bracket; A second drive motor, wherein the second drive motor is fixedly mounted on the second bracket; A reversing limit mechanism driven by a first driving motor, the reversing limit mechanism being mounted on the extension bracket via a first bracket, and being used to limit and fix the annular casting from both inside and outside; The transposition fine grinding mechanism is driven by the second driving motor, and the transposition fine grinding mechanism is installed on the second bracket through the guide long hole, and the transposition fine grinding mechanism is used for fine grinding the inner and outer curved surfaces of the circular ring casting.

[0006] Preferably, the first bracket and the second bracket are symmetrically arranged with the mid-vertical line of the load-bearing platform as the symmetry axis; The extension bracket is a right-angle plate structure, and the guide long hole is vertically arranged.

[0007] Preferably, the reversing limiting mechanism comprises: An air filter sleeve is driven to rotate by a first driving motor, the air filter sleeve is rotatably mounted in the first bracket and the extension bracket, and the end of the air filter sleeve has uniform openings; A telescopic sleeve, wherein the telescopic sleeve is slidably sleeved in the air filter sleeve through the front end opening of the air filter sleeve; A first piston conduit corresponding to the outer curved surface of the annular casting, wherein the first piston conduit is fixedly connected to the front end of the air filter sleeve; A second piston conduit corresponding to the inner curved surface of the circular ring casting, wherein the second piston conduit is fixedly connected to the front end of the telescopic sleeve extending out of the air filter sleeve; A driving cylinder, wherein the driving cylinder is fixedly mounted on the first piston pipeline, and an output end of the driving cylinder is fixedly connected to the second piston pipeline; A booster air pump and a corrugated hose, wherein the booster air pump is fixedly installed in the air filter sleeve, and the corrugated hose is used to fixedly connect the output end of the booster air pump and the end of the telescopic sleeve located in the air filter sleeve; a vent corresponding to the first piston conduit, the vent being provided in the telescopic sleeve; A closed baffle corresponding to the vent, the closed baffle being fixedly installed in the front end of the air filter sleeve; A spiral valve corresponding to the second piston pipeline, wherein the spiral valve is threadedly installed in the front end of the telescopic sleeve; A first clamping tool and a second clamping tool are respectively arranged on the first piston pipe and the second piston pipe, wherein the first clamping tool is used for clamping the outer curved surface of the circular ring casting, and the second clamping tool is used for clamping the inner curved surface of the circular ring casting.

[0008] Preferably, the first piston conduit is composed of a first longitudinal long section, a first transverse section and a first longitudinal short section connected in sequence, and the first piston conduit is composed of the first longitudinal long section, the first transverse section and the first longitudinal short section to form a U-shaped structure; The second piston conduit is composed of a second longitudinal long section, a second transverse section and a second longitudinal short section connected in sequence, and the second piston conduit is composed of the second longitudinal long section, the second transverse section and the second longitudinal short section to form a Z-shaped structure.

[0009] Preferably, the first clamping fixture and the second clamping fixture both include: A booster piston and a driving wedge, wherein the booster piston is fixedly connected to the driving wedge; A driven wedge, the driven wedge slidingly contacts the driving wedge; An arc-shaped clamping plate, wherein the arc-shaped clamping plate is fixedly mounted on the other end of the driven wedge away from the driving wedge; The first clamping fixture and the second clamping fixture further include: A lever shaft seat and a traction lever movably pulled by a driven wedge, wherein the traction lever is rotatably mounted on the lever shaft seat; The convex telescopic rod and the tightening locking plate corresponding to the plane of the circular ring casting, the convex telescopic rod and the tightening locking plate are fixedly connected; A return spring is sleeved on the convex telescopic rod.

[0010] Preferably, in the first clamping tool: The booster piston and the driving wedge are both slidably mounted in the first transverse section, and the driven wedge is slidably mounted in the first longitudinal short section, the arc-shaped clamping plate corresponds to the outer curved surface of the annular casting, the lever shaft seat is integrally connected to the first longitudinal short section, and the convex telescopic rod is slidably mounted in the first longitudinal short section, and the return spring is welded between the first longitudinal short section and the tightening lock plate; In the second clamping tool: The booster piston and the driving wedge are both slidably mounted in the second transverse section, and the driven wedge is slidably mounted in the second longitudinal short section, the arc-shaped clamping plate corresponds to the inner curved surface of the circular ring casting, the lever shaft seat is integrally connected to the second longitudinal short section, and the convex telescopic rod is slidably mounted in the second longitudinal short section, and the reset spring is welded between the second longitudinal short section and the tightening lock plate.

[0011] Preferably, the driven wedge block is integrally connected with a boosting protrusion that slides against one end of the traction lever, and the tightening lock plate is provided with a limiting long hole that slides onto the other end of the traction lever, the traction lever is provided with a traction long hole located in the limiting long hole, and the tightening lock plate is integrally provided with a driven bolt that slides into the traction long hole through the limiting long hole.

[0012] Preferably, the transposition fine grinding mechanism comprises: An adapted ball screw and lifting nut, wherein the ball screw is rotatably mounted in the guide slot and fixedly connected to the output end of the second drive motor, and the lifting nut is mounted on the ball screw in a matching manner; A lifting hanger, wherein the lifting hanger is fixedly sleeved on the lifting nut, and the lifting hanger is slidably sleeved in the guide long hole; A telescopic suspension and an automatic telescopic rod for traction driving the telescopic suspension, wherein the telescopic suspension is slidably mounted in the lifting hanger, and the automatic telescopic rod is fixedly mounted on the lifting hanger; A polisher is fixedly mounted on the telescopic suspension.

[0013] Preferably, the lifting hanger is composed of a guide slider and a synchronous vertical plate as a whole, the guide slider is provided with a transverse through hole for slidingly fitting the telescopic suspension, and the synchronous vertical plate is provided with a longitudinal through hole.

[0014] Preferably, a lifting slider fixedly connected to the output end of the automatic telescopic rod is slidably installed in the longitudinal through hole, and a traction connecting rod is pin-connected between the lifting slider and the telescopic suspension.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention utilizes a load-bearing platform, a symmetrically arranged first bracket and a second bracket, an extension bracket and a guide long hole to form a load-bearing body of a gantry structure, utilizes the first bracket and the extension bracket to set a reversing limit mechanism, the reversing limit mechanism is used to fix and drive the circular ring casting, and simultaneously utilizes the second bracket to set a transposition fine grinding mechanism corresponding to the circular ring casting, the transposition fine grinding mechanism is used to position and polish the inner and outer curved surfaces of the circular ring casting.

[0016] 2. The present invention provides a hollow air filter sleeve between the first bracket and the extension bracket, and a booster air pump and a telescopic sleeve connected by a corrugated hose are installed in the air filter sleeve, and the first piston pipe and the second piston pipe are respectively connected through the air filter sleeve and the telescopic sleeve. A ventilation hole that is in active contact with the first piston pipe is opened in the telescopic inner cylinder, and a closed baffle corresponding to the ventilation hole is provided, and a spiral valve corresponding to the second piston pipe is provided on the telescopic inner cylinder. It only needs to control the horizontal extension and retraction of the telescopic sleeve, and use the ventilation hole to switch the first piston pipe and the second piston pipe. Thus, the first clamping tool and the second clamping tool can be controlled by one button using the same booster air pump.

[0017] 3. The present invention respectively arranges a first clamping fixture and a second clamping fixture in the first piston pipe and the second piston tube. Both the first clamping fixture and the second clamping fixture are driven by a booster piston, a driving wedge and a driven wedge. The first clamping fixture and the second clamping fixture are switched according to the grinding needs of the inner and outer curved surfaces, and the telescopic driven wedge is used to drive the tightening locking plate to clamp and fix the annular casting.

[0018] 4. The present invention utilizes a second bracket to set a ball screw and a lifting nut driven to rotate by a second drive motor. According to the need for polishing the inner and outer curved surfaces of the annular casting, the polisher installed by the lifting hanger and the telescopic suspension is controlled to be lifted vertically. At the same time, the polisher is driven to be extended horizontally by the automatic telescopic rod, thereby performing fixed-point polishing on the annular casting located at the center line of the load-bearing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a ring casting surface grinding device proposed by the present invention; Figure 2 A schematic diagram of the load-bearing body structure of a circular ring casting surface grinding device proposed by the present invention; Figure 3 A schematic diagram of the structure of a reversing and limiting mechanism of a circular ring casting surface grinding device proposed by the present invention; Figure 4 A cross-sectional view of a surface grinding device for a circular ring casting proposed by the present invention; Figure 5 A cross-sectional view of a reversing and limiting mechanism of a circular ring casting surface grinding device proposed by the present invention; Figure 6 A cross-sectional view of a first piston pipe of a ring casting surface grinding device proposed by the present invention; Figure 7 A cross-sectional view of a second piston pipe of a ring casting surface grinding device proposed by the present invention; Figure 8 A cross-sectional view of a driving wedge and a driven wedge of a circular ring casting surface grinding device proposed by the present invention; Fig. 9 This is a schematic diagram of the structure of a first clamping fixture and a second clamping fixture of a circular ring casting surface grinding device proposed by the present invention; Fig.10 A schematic diagram of the structure of a transposition fine grinding mechanism of a circular ring casting surface grinding device proposed by the present invention; Fig.11 A schematic diagram of the lifting and hanging frame structure of a circular ring casting surface grinding device proposed by the present invention; Fig.12This is a schematic diagram of the connection structure of the lifting hanger and telescopic suspension of a circular ring casting surface grinding device proposed by the present invention.

[0020] In the figure: 1. Load-bearing body; 101. Load-bearing platform; 102. First bracket; 103. Second bracket; 104. Extension bracket; 105. Long guide hole; 2. First drive motor; 3. Second drive motor; 4. Air filter sleeve; 5. Telescopic sleeve; 6. First piston pipe; 601. First longitudinal long section; 602. First transverse section; 603. First longitudinal short section; 7. Second piston pipe; 701. Second longitudinal long section; 702. Second transverse section; 703. Second longitudinal short section; 8. Driving cylinder; 9. Booster pump; 10. Corrugated hose; 11. Ventilation port; 12. Closing baffle; 13. Screw valve; 14. Booster piston; 15. Driving wedge; 16. driven wedge; 1601. booster convex block; 17. Arc-shaped splint; 18. Lever shaft seat; 19. Traction lever; 1901. Traction slot; 20. Convex telescopic rod; 21. tightening lock plate; 2101. limiting long hole; 2102. driven bolt; 22. Return spring; 23. Ball screw; 24. Lifting nut; 25. Lifting hanger; 2501. Guide slider; 2502. Synchronous vertical plate; 2503. Horizontal through hole; 2504. Vertical through hole; 26. Telescopic suspension; 27. Automatic telescopic rod; 28. Lifting slider; 29. ​​Traction connecting rod; 30. Polisher. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-Figure 12 A circular ring casting surface grinding device includes a load-bearing body 1, the load-bearing body 1 includes a load-bearing platform 101, a first bracket 102 and a second bracket 103, an extension bracket 104 and a guide slot 105: The load-bearing platform 101 is arranged horizontally.

[0023] The first bracket 102 and the second bracket 103 are vertically welded to the left and right ends of the load-bearing platform 101 respectively. It is worth mentioning that the first bracket 102 and the second bracket 103 are symmetrically arranged with the mid-vertical line of the load-bearing platform 101 as the symmetry axis, and the annular casting is fixed at the mid-vertical line position of the load-bearing platform 101, and the annular casting is polished at the mid-vertical line position of the load-bearing platform 101.

[0024] The extension bracket 104 is integrally welded to the first bracket 102, and the guide long hole 105 is opened in the second bracket 103. The extension bracket 104 is a right-angle plate structure, and the guide long hole 105 is vertically arranged. The polisher 30 is vertically raised and lowered by the guide long hole 105 so that the inner and outer curved surfaces of the circular ring casting correspond to the upper and lower height positions respectively.

[0025] The load-carrying body 1 is provided with a first drive motor 2, a second drive motor 3, a reversing limit mechanism driven by the first drive motor 2, and a transposition fine grinding mechanism driven by the second drive motor 3: The first drive motor 2 is fixedly mounted on the first bracket 102. Figure 1 A gear corresponding to the transmission rack is provided on the first drive motor 2 and the air filter sleeve 4, or a driving gear and a driven gear are meshedly connected, so that the air filter sleeve 4 performs a rotational motion opposite to the output end of the polisher 30 under the driving action of the first drive motor 2.

[0026] The second drive motor 3 is fixedly mounted on the second bracket 103 . Under the control of the second drive motor 3 , the polisher 30 is lifted and lowered in the vertical direction so as to alternately polish the inner and outer curved surfaces of the annular casting.

[0027] The reversing limit mechanism is installed on the extension bracket 104 through the first bracket 102, and the reversing limit mechanism is used to limit and fix the annular casting from both inside and outside, and adjust the clamping position in real time according to the position difference of the inner and outer surfaces of the annular casting to avoid grinding interference to the polisher 30 in the clamped state.

[0028] The transposition fine grinding mechanism is installed on the second bracket 103 through the guide long hole 105, and the transposition fine grinding mechanism is used to perform fine grinding operations on the inner and outer curved surfaces of the circular ring casting. The vertical and horizontal positions of the polisher 30 are adjusted through the transposition fine grinding mechanism so that the polisher 30 can flexibly and comprehensively grind the inner and outer curved surfaces of the circular ring casting.

[0029] The reversing limit mechanism includes an air filter sleeve 4 driven to rotate by a first driving motor 2, a telescopic sleeve 5, a first piston pipe 6 corresponding to the outer curved surface of the circular ring casting, a second piston pipe 7 corresponding to the inner curved surface of the circular ring casting, a driving cylinder 8, a booster air pump 9 and a corrugated hose 10, a vent 11 corresponding to the first piston pipe 6, a closing baffle 12 corresponding to the vent 11, a spiral valve 13 corresponding to the second piston pipe 7, and a first clamping tool and a second clamping tool respectively arranged on the first piston pipe 6 and the second piston pipe 7: The air filter sleeve 4 is rotatably installed in the first bracket 102 and the extension bracket 104, and the end of the air filter sleeve 4 is evenly opened, so that the air filter sleeve 4 is a hollow tubular structure. During operation, the booster air pump 9 absorbs gas through the end of the air filter sleeve 4 to facilitate driving the first clamping tooling and the second clamping tooling.

[0030] The telescopic sleeve 5 is slidably inserted into the air filter sleeve 4 through the front end opening of the air filter sleeve 4, the driving cylinder 8 is fixedly installed on the first piston pipe 6, and the output end of the driving cylinder 8 is fixedly connected to the second piston pipe 7. Under the driving action of the driving cylinder 8, the telescopic sleeve 5 is linearly extended and retracted along the air filter sleeve 4 to adjust the horizontal position of the second clamping tooling.

[0031] The first piston pipe 6 is fixedly connected to the front end of the air filter sleeve 4. Figure 6 The first piston pipe 6 is composed of a first longitudinal long section 601, a first transverse section 602 and a first longitudinal short section 603 connected in sequence, and the first piston pipe 6 is composed of the first longitudinal long section 601, the first transverse section 602 and the first longitudinal short section 603 to form a U-shaped structure.

[0032] The second piston pipe 7 is fixedly connected to the front end of the telescopic sleeve 5 extending out of the air filter sleeve 4. Figure 7 The second piston pipe 7 is composed of a second longitudinal long section 701, a second transverse section 702 and a second longitudinal short section 703 connected in sequence, and the second piston pipe 7 is composed of the second longitudinal long section 701, the second transverse section 702 and the second longitudinal short section 703 to form a Z-shaped structure.

[0033] The booster air pump 9 is fixedly installed in the air filter sleeve 4, and the corrugated hose 10 is used to fixedly connect the output end of the booster air pump 9 with the end of the telescopic sleeve 5 located in the air filter sleeve 4. By utilizing the structural ductility of the corrugated hose 10 and the horizontal telescopic adjustment of the telescopic sleeve 5, the booster air pump 9 can always provide gas to the telescopic sleeve 5.

[0034] Please refer to the instruction manual for details Figure 5The vent 11 is opened in the telescopic sleeve 5. The closed baffle 12 is fixedly installed in the front end of the air filter sleeve 4, and the spiral valve 13 is threadedly installed on the front end of the telescopic sleeve 5. By adjusting the position of the telescopic sleeve 5 horizontally and controlling the spiral valve 13 at the same time, the opening and closing of the telescopic sleeve 5 and the air filter sleeve 4 can be adjusted: When the second clamping tool is located at the mid-vertical position of the load-bearing platform 101, the closing baffle 12 blocks the vent 11, and the spiral valve 13 is opened outward, so that the gas in the telescopic sleeve 5 can only enter the second piston pipe 7, thereby opening the second clamping tool; When the second clamping fixture deviates from the mid-vertical position of the load-bearing platform 101, the closing baffle 12 is misaligned with the vent 11, and the vent 11 corresponds to the first piston pipe 6, closing the spiral valve 13 inward, so that the gas in the telescopic sleeve 5 can only enter the first piston pipe 6, thereby opening the first clamping fixture.

[0035] The first clamping fixture is used to clamp the outer curved surface of the circular ring casting, and the second clamping fixture is used to clamp the inner curved surface of the circular ring casting. Both the first clamping fixture and the second clamping fixture include a booster piston 14, a driving wedge 15, a driven wedge 16, and an arc-shaped clamping plate 17: The booster piston 14 is fixedly connected to the driving wedge 15 .

[0036] The driven wedge 16 is in sliding contact with the driving wedge 15 .

[0037] The arc-shaped clamping plate 17 is fixedly mounted on the other end of the driven wedge 16 away from the driving wedge 15 . The arc-shaped clamping plate 17 extending outward with the driven wedge 16 is fixedly abutted against the outer curved surface or the inner curved surface of the annular casting to achieve initial abutment and limiting.

[0038] The first clamping fixture and the second clamping fixture also include a lever shaft seat 18, a traction lever 19 movably pulled by a driven wedge 16, a convex telescopic rod 20, a tightening lock plate 21 corresponding to the plane of the circular casting, and a return spring 22: The traction lever 19 is rotatably mounted on the lever shaft seat 18, the convex telescopic rod 20 is fixedly connected to the tightening lock plate 21, and the return spring 22 is sleeved on the convex telescopic rod 20. The traction lever 19 drives the tightening lock plate 21 to move horizontally during the deflection process to further clamp and fix the plane of the annular casting in the closed state.

[0039] Please refer to the instruction manual for details Fig. 9 It is worth noting that: First, in the first clamping tool: The booster piston 14 and the driving wedge 15 are both slidably mounted in the first transverse section 602, and the driven wedge 16 is slidably mounted in the first longitudinal short section 603. The arc-shaped clamping plate 17 corresponds to the outer curved surface of the circular ring casting to limit the outer curved surface of the circular ring casting. The lever shaft seat 18 is integrally connected to the first longitudinal short section 603, and the convex telescopic rod 20 is slidably mounted in the first longitudinal short section 603. The return spring 22 is welded between the first longitudinal short section 603 and the tightening lock plate 21.

[0040] Secondly, in the second clamping tool: The booster piston 14 and the driving wedge 15 are both slidably mounted in the second transverse section 702, and the driven wedge 16 is slidably mounted in the second longitudinal short section 703. The arc-shaped clamping plate 17 corresponds to the inner curved surface of the circular ring casting to limit the inner curved surface of the circular ring casting. The lever shaft seat 18 is integrally connected to the second longitudinal short section 703, and the convex telescopic rod 20 is slidably mounted in the second longitudinal short section 703. The reset spring 22 is welded between the second longitudinal short section 703 and the tightening lock plate 21.

[0041] Please refer to the instruction manual for details Fig. 9 The driven wedge block 16 is integrally connected with a boosting protrusion 1601 that slides against one end of the traction lever 19, and the tightening lock plate 21 is provided with a limiting long hole 2101 that slides onto the other end of the traction lever 19, and the traction lever 19 is provided with a traction long hole 1901 located in the limiting long hole 2101, and the tightening lock plate 21 is integrally provided with a driven bolt 2102 that slides into the traction long hole 1901 through the limiting long hole 2101. The boosting protrusion 1601 moves with the driven wedge block 16 to apply pressure to the traction lever 19, and the traction lever 19 is deflected and applies pressure to the tightening lock plate 21 through the driven bolt 2102. Because of the guiding and limiting effect of the convex telescopic rod 20, the tightening lock plate 21 can only perform linear telescopic movement.

[0042] The transposition fine grinding mechanism includes an adapted ball screw 23 and a lifting nut 24, a lifting hanger 25, a telescopic suspension 26, an automatic telescopic rod 27 for pulling and driving the telescopic suspension 26, and a polisher 30: The ball screw 23 is rotatably installed in the guide long hole 105 and fixedly connected to the output end of the second drive motor 3 , and the lifting nut 24 is matchedly installed on the ball screw 23 .

[0043] The lifting hanger 25 is fixedly mounted on the lifting nut 24 and slidably mounted in the guide slot 105. The guide slot 105 has a guiding and limiting function for the lifting nut 24 and the lifting hanger 25, thereby ensuring that the polisher 30 can be lifted and lowered stably.

[0044] The telescopic suspension 26 is slidably mounted in the lifting hanger 25 , and the automatic telescopic rod 27 is fixedly mounted on the lifting hanger 25 . By adjusting the lifting slider 28 , the telescopic suspension 26 can be telescopically moved horizontally.

[0045] The polisher 30 is fixedly mounted on the telescopic suspension 26 .

[0046] Please refer to the instruction manual for details Fig.11 With attached Fig.12 : First, the lifting hanger 25 is composed of a guide slider 2501 and a synchronous vertical plate 2502. A transverse through hole 2503 for slidingly fitting the telescopic suspension 26 is opened in the guide slider 2501 to guide and limit the telescopic suspension 26 in the horizontal direction. A longitudinal through hole 2504 is opened in the synchronous vertical plate 2502 to guide and limit the lifting slider 28.

[0047] Secondly, a lifting slider 28 fixedly connected to the output end of the automatic telescopic rod 27 is slidably installed in the longitudinal through hole 2504, and a traction link 29 is pin-connected between the lifting slider 28 and the telescopic suspension 26.

[0048] It should be noted that the specific models and specifications of the first drive motor 2, the second drive motor 3, the booster air pump 9, the automatic telescopic rod 27 and the polisher 30 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0049] The present invention can be explained by the following operation mode: A Requirement: When the inner curved surface of the ring casting needs to be polished, the outer curved surface of the ring casting needs to be limited and fixed: In the first step, the driving cylinder 8 is controlled to open on the first piston pipe 6, so that the telescopic sleeve 5 is retracted into the air filter sleeve 4, until the second clamping tool on the second piston pipe 7 is away from the mid-vertical position of the load-bearing platform 101, the vent 11 is misaligned with the closing baffle 12, and the spiral valve 13 is screwed into the telescopic sleeve 5 to close the second piston pipe 7; The second step is to control the booster air pump 9 to start to drive the first clamping tool. The booster air pump 9 inputs gas into the first piston pipe 6 through the corrugated hose 10 and the telescopic sleeve 5. The pressurized booster piston 14 squeezes the driven wedge 16 through the driving wedge 15. The driven wedge 16 drives the arc-shaped clamping plate 17 to contact the outer curved surface of the annular casting. The driven wedge 16 squeezes one end of the traction lever 19 through the booster convex block 1601, so that the traction lever 19 deflects with the lever shaft seat 18 as the fulcrum. The end of the traction lever 19 located in the limiting long hole 2101 applies pressure to the driven bolt 2102 through the traction long hole 1901, so that the tightening lock plate 21 drives the convex telescopic rod 20 to shrink into the first longitudinal short section 603, and the tightening lock plates 21 moving towards each other clamp and fix the flat part of the annular casting. The third step is to control the second drive motor 3 to start on the second bracket 103, and the rotating ball screw 23 drives the polisher 30 to rise and fall to the height position corresponding to the inner curved surface of the circular ring casting through the lifting nut 24, the lifting hanger 25 and the telescopic suspension 26, and then control the automatic telescopic rod 27 to start, so that the lifting slider 28 moves up and down, and the polisher 30 on the telescopic suspension 26 is pulled and supported by the traction link 29 to move horizontally to the horizontal position corresponding to the inner curved surface of the circular ring casting; The fourth step is to control the first drive motor 2 to start, and drive the annular casting to perform a rotational motion opposite to the output end of the polisher 30 through the air filter sleeve 4, so as to perform a grinding operation on the inner curved surface of the annular casting.

[0050] B Requirement: When the outer curved surface of the ring casting needs to be polished, the inner curved surface of the ring casting needs to be limited and fixed: The first step is to control the driving cylinder 8 on the first piston pipe 6 to open, so that the telescopic sleeve 5 extends outward from the air filter sleeve 4, until the second clamping tool on the second piston pipe 7 moves to the mid-vertical position of the load-bearing platform 101, at which time the vent 11 is blocked by the closing baffle 12, and then the spiral valve 13 is screwed outward from the telescopic sleeve 5 to open the second piston pipe 7; The second step is to control the booster air pump 9 to start to drive the second clamping tool. The booster air pump 9 inputs gas into the second piston pipe 7 through the corrugated hose 10 and the telescopic sleeve 5. The pressurized booster piston 14 squeezes the driven wedge 16 through the driving wedge 15. The driven wedge 16 drives the arc-shaped clamping plate 17 to contact the inner curved surface of the annular casting. The driven wedge 16 squeezes one end of the traction lever 19 through the booster convex block 1601, so that the traction lever 19 deflects with the lever shaft seat 18 as the fulcrum. The end of the traction lever 19 located in the limiting long hole 2101 applies pressure to the driven bolt 2102 through the traction long hole 1901, so that the tightening lock plate 21 drives the convex telescopic rod 20 to shrink into the second longitudinal short section 703, and the tightening lock plates 21 moving towards each other clamp and fix the flat part of the annular casting. The third step is to control the second drive motor 3 to start on the second bracket 103, and the rotating ball screw 23 drives the polisher 30 to rise and fall to the height position corresponding to the outer curved surface of the annular casting through the lifting nut 24, the lifting hanger 25 and the telescopic suspension 26, and then control the automatic telescopic rod 27 to start, so that the lifting slider 28 moves up and down, and the polisher 30 on the telescopic suspension 26 is pulled and supported by the traction link 29 to move horizontally to the horizontal position corresponding to the outer curved surface of the annular casting; The fourth step is to control the first drive motor 2 to start, and drive the annular casting to perform a rotational motion opposite to the output end of the polisher 30 through the air filter sleeve 4, so as to perform a grinding operation on the outer curved surface of the annular casting.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ring casting surface grinding device, comprising a load-bearing body (1), characterized in that: The load-carrying body (1) comprises: A load-bearing platform (101), wherein the load-bearing platform (101) is arranged horizontally; A first bracket (102) and a second bracket (103), wherein the first bracket (102) and the second bracket (103) are respectively vertically welded to the left and right ends of the load-bearing platform (101); An extension bracket (104) and a guide long hole (105), wherein the extension bracket (104) is integrally welded to the first bracket (102), and the guide long hole (105) is opened in the second bracket (103); The load-carrying body (1) is provided with: A first drive motor (2), the first drive motor (2) being fixedly mounted on a first bracket (102); A second drive motor (3), the second drive motor (3) being fixedly mounted on the second bracket (103); a reversing limit mechanism driven by a first drive motor (2), the reversing limit mechanism being mounted on an extension bracket (104) via a first bracket (102), and being used for limiting and fixing the annular casting from both inner and outer sides; A transposition fine grinding mechanism driven by a second drive motor (3), the transposition fine grinding mechanism being mounted on the second bracket (103) via a guide slot (105), and being used for fine grinding the inner and outer curved surfaces of the annular casting.

2. A ring casting surface grinding device according to claim 1, characterized in that: The first bracket (102) and the second bracket (103) are arranged symmetrically with the vertical line of the load-bearing platform (101) as the axis of symmetry; The extension bracket (104) is a right-angle plate structure, and the guide long hole (105) is arranged vertically.

3. The surface grinding device for annular casting according to claim 1, characterized in that: The reversing limit mechanism comprises: An air filter sleeve (4) is driven to rotate by a first drive motor (2), the air filter sleeve (4) is rotatably mounted in the first bracket (102) and the extension bracket (104), and the end of the air filter sleeve (4) is evenly opened with holes; A telescopic sleeve (5), wherein the telescopic sleeve (5) is slidably sleeved into the air filter sleeve (4) through the front end opening of the air filter sleeve (4); A first piston pipe (6) corresponding to the outer curved surface of the circular ring casting, wherein the first piston pipe (6) is fixedly connected to the front end of the air filter sleeve (4); A second piston conduit (7) corresponding to the inner curved surface of the circular ring casting, the second piston conduit (7) being fixedly connected to the front end of the telescopic sleeve (5) extending out of the air filter sleeve (4); A driving cylinder (8), wherein the driving cylinder (8) is fixedly mounted on the first piston pipeline (6), and an output end of the driving cylinder (8) is fixedly connected to the second piston pipeline (7); A booster air pump (9) and a corrugated hose (10), wherein the booster air pump (9) is fixedly installed in the air filter sleeve (4), and the corrugated hose (10) is used to fixedly connect the output end of the booster air pump (9) and the end of the telescopic sleeve (5) located in the air filter sleeve (4); A vent (11) corresponding to the first piston pipe (6), wherein the vent (11) is formed in the telescopic sleeve (5); A closed baffle (12) corresponding to the ventilation opening (11), wherein the closed baffle (12) is fixedly installed in the front end of the air filter sleeve (4); A spiral valve (13) corresponding to the second piston pipeline (7), wherein the spiral valve (13) is threadedly installed in the front end of the telescopic sleeve (5); A first clamping tool and a second clamping tool are respectively arranged on the first piston pipe (6) and the second piston pipe (7), wherein the first clamping tool is used to clamp the outer curved surface of the circular ring casting, and the second clamping tool is used to clamp the inner curved surface of the circular ring casting.

4. A ring casting surface grinding device according to claim 3, characterized in that: The first piston pipeline (6) is composed of a first longitudinal long section (601), a first transverse section (602) and a first longitudinal short section (603) connected in sequence, and the first piston pipeline (6) is composed of the first longitudinal long section (601), the first transverse section (602) and the first longitudinal short section (603) to form a U-shaped structure; The second piston conduit (7) is composed of a second longitudinal long section (701), a second transverse section (702) and a second longitudinal short section (703) connected in sequence, and the second piston conduit (7) is composed of the second longitudinal long section (701), the second transverse section (702) and the second longitudinal short section (703) to form a Z-shaped structure.

5. The surface grinding device for annular casting according to claim 3, characterized in that: The first clamping fixture and the second clamping fixture both include: A booster piston (14) and a driving wedge (15), wherein the booster piston (14) and the driving wedge (15) are fixedly connected; A driven wedge (16), wherein the driven wedge (16) is in sliding contact with the driving wedge (15); An arc-shaped clamping plate (17), wherein the arc-shaped clamping plate (17) is fixedly mounted on the other end of the driven wedge block (16) away from the driving wedge block (15); The first clamping fixture and the second clamping fixture further include: A lever shaft seat (18) and a traction lever (19) movably pulled by a driven wedge (16), wherein the traction lever (19) is rotatably mounted on the lever shaft seat (18); A convex telescopic rod (20) and a tightening lock plate (21) corresponding to the plane of the circular ring casting, wherein the convex telescopic rod (20) and the tightening lock plate (21) are fixedly connected; A return spring (22), wherein the return spring (22) is sleeved on the convex telescopic rod (20).

6. A ring casting surface grinding device according to claim 5, characterized in that: In the first clamping tool: The booster piston (14) and the driving wedge (15) are both slidably mounted in the first transverse section (602), and the driven wedge (16) is slidably mounted in the first longitudinal short section (603), the arc-shaped clamping plate (17) corresponds to the outer curved surface of the circular ring casting, the lever shaft seat (18) is integrally connected to the first longitudinal short section (603), and the convex telescopic rod (20) is slidably mounted in the first longitudinal short section (603), and the return spring (22) is welded between the first longitudinal short section (603) and the tightening lock plate (21); In the second clamping tool: The booster piston (14) and the driving wedge (15) are both slidably mounted in the second transverse section (702), and the driven wedge (16) is slidably mounted in the second longitudinal short section (703), the arc-shaped clamping plate (17) corresponds to the inner curved surface of the circular ring casting, the lever shaft seat (18) is integrally connected to the second longitudinal short section (703), and the convex telescopic rod (20) is slidably mounted in the second longitudinal short section (703), and the return spring (22) is welded between the second longitudinal short section (703) and the tightening lock plate (21).

7. The surface grinding device for annular casting according to claim 5, characterized in that: The driven wedge block (16) is integrally connected with a boosting protrusion (1601) that slides against one end of the traction lever (19), and the tightening lock plate (21) is provided with a limiting long hole (2101) that slides and fits the other end of the traction lever (19), the traction lever (19) is provided with a traction long hole (1901) located in the limiting long hole (2101), and the tightening lock plate (21) is integrally provided with a driven bolt (2102) that slides and fits in the traction long hole (1901) through the limiting long hole (2101).

8. The surface grinding device for annular casting according to claim 1, characterized in that: The transposition fine grinding mechanism comprises: An adapted ball screw (23) and a lifting nut (24), wherein the ball screw (23) is rotatably mounted in the guide slot (105) and fixedly connected to the output end of the second drive motor (3), and the lifting nut (24) is mounted on the ball screw (23); A lifting hanger (25), wherein the lifting hanger (25) is fixedly sleeved on the lifting nut (24), and the lifting hanger (25) is slidably sleeved in the guide long hole (105); A telescopic suspension (26) and an automatic telescopic rod (27) for pulling and driving the telescopic suspension (26), wherein the telescopic suspension (26) is slidably mounted in the lifting hanger (25), and the automatic telescopic rod (27) is fixedly mounted on the lifting hanger (25); A polisher (30), wherein the polisher (30) is fixedly mounted on the telescopic suspension (26).

9. A ring casting surface grinding device according to claim 8, characterized in that: The lifting hanger (25) is integrally composed of a guide slider (2501) and a synchronous vertical plate (2502); a transverse through hole (2503) for slidingly fitting a telescopic suspension (26) is provided in the guide slider (2501), and a longitudinal through hole (2504) is provided in the synchronous vertical plate (2502).

10. The surface grinding device for annular casting according to claim 9, characterized in that: A lifting slider (28) fixedly connected to the output end of the automatic telescopic rod (27) is slidably mounted in the longitudinal through hole (2504), and a traction link (29) is pin-connected between the lifting slider (28) and the telescopic suspension (26).

Images