Inner cavity polishing equipment for valve machining

Abstract

The invention relates to the technical field of valve machining, in particular to inner cavity polishing equipment for valve machining, which comprises a base fixedly connected with an electric lifting table, and further comprises a valve body transverse moving fixing structure connected with the electric lifting table; the deformation grinding structure is connected with the base, the deformation grinding structure comprises a rotation driving part connected with the base, the rotation driving part is connected with an angle adjusting part, and the angle adjusting part is connected with a three-head grinding part. By adjusting the three-head grinding part, the valve body grinding device is suitable for grinding the spherical inner cavity wall and the tubular inner cavity wall of the valve body, and the application range of the valve body grinding device is widened.

Description

Technical Field

[0001] The invention relates to the technical field of valve processing, in particular to an inner cavity polishing device for valve processing. Background Art

[0002] A valve is a device used to control the direction, pressure and flow of a fluid in a fluid system. It is a device that allows the medium (liquid, gas and powder) in piping and equipment to flow or stop and control its flow. During the valve processing and production process, the inner cavity of the valve flow pipe is usually polished to prevent the fluid from causing excessive resistance when circulating. At this time, an inner cavity polishing device for valve processing is needed to polish the inner cavity of the valve.

[0003] During the use of the inner cavity polishing equipment for valve processing, a rotating polishing head is usually used to polish the inner wall of the valve body. However, since the inner wall of the valve body is sometimes not composed of a single tubular structure, for example, a valve body with a spherical chamber arranged between two groups of tubular cavities, the existing polishing equipment is difficult to adjust according to the inner cavity structure and size of the valve during use, which limits the applicability of the inner cavity polishing equipment for valve processing. Summary of the invention

[0004] The object of the present invention is to provide an inner cavity polishing device for valve processing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An inner cavity polishing device for valve processing comprises a base, the base is fixedly connected to an electric lifting platform, and further comprises:

[0007] A valve body transverse movement fixing structure connected to an electric lifting platform;

[0008] A deformation grinding structure connected to a base, the deformation grinding structure comprises a rotation driving part connected to the base, the rotation driving part is connected to an angle adjustment part, the angle adjustment part is connected to a three-head grinding part, the three-head grinding part comprises a shell connected to the angle adjustment part, the shell is fixedly connected to a first active telescopic frame, the moving end of the first active telescopic frame is fixedly connected to the first grinding part, the shell is connected to a bridge frame, the bridge frame is fixedly connected to two groups of slot plates, the slot plates are provided with a first special-shaped groove and a second special-shaped groove, the shell is connected to a reverse moving part, the reverse moving part is fixedly connected to two groups of connecting frames, the connecting frame is slidably connected to a track fixedly connected to the shell, the connecting frame is fixedly connected to a first transverse groove track changing block, the connecting frame is fixedly connected to a second transverse groove track changing block, the connecting frame is fixedly connected to a first arc groove track changing block, the connecting frame is fixedly connected to a second arc groove track changing block, the first special-shaped groove and the second special-shaped groove arranged on the same slot plate are slidably connected to a movable telescopic part together, the movable telescopic part is connected to the second grinding part, and the first grinding part has the same structure as the second grinding part.

[0009] As a further improvement of the present invention: the valve body transverse movement fixing structure includes a guide frame fixedly connected to the movable end of the electric lifting platform, the guide frame fixedly connected to the first active telescopic rod, the movable end of the first active telescopic rod is fixedly connected to a supporting frame slidably connected to the guide frame, the supporting frame is fixedly connected to multiple groups of second active telescopic rods, and the movable end of the second active telescopic rod is fixedly installed with a splint.

[0010] As a further improvement of the present invention: the rotation driving part includes a stand fixedly connected to the base, the stand fixedly connected to the third motor, the output shaft of the third motor fixedly connected to a prism, the prism is connected to the angle adjustment part, and the stand is connected to the angle adjustment part.

[0011] As a further improvement scheme of the present invention: the angle adjustment part includes two groups of third active telescopic rods fixedly connected to the vertical frame, the movable end of the third active telescopic rod is fixedly connected with a rotation limit sleeve, the two groups of rotation limit sleeves are jointly rotationally connected with a ring plate slidably connected to the prism, the ring plate is fixedly connected with a synchronous frame, the synchronous frame is slidably connected with a cover shell, the cover shell is fixedly connected to the prism, the cover shell is rotationally connected to the shell, the shell is fixedly connected with two groups of symmetrically arranged incomplete gears, and the synchronous frame is fixedly connected with a first rack meshing with the incomplete gears.

[0012] As a further improvement of the present invention: the reverse moving part includes a second motor fixedly connected to the shell, the output shaft of the second motor is fixedly connected to the second gear, the second gear is meshingly connected to two sets of second racks arranged in opposite directions, and the second racks are fixedly connected to the connecting frame.

[0013] As a further improvement scheme of the present invention: the movable telescopic part includes two groups of sliding shafts, one group of sliding shafts is slidably connected to the first special-shaped groove, and the other group of sliding shafts is slidably connected to the second special-shaped groove, and the two groups of sliding shafts are commonly fixedly connected to a frame, and the frame is fixedly connected to a protruding shaft, and the frame is fixedly connected to a fourth active telescopic rod, and the moving end of the fourth active telescopic rod is fixedly connected to the second grinding part, and each group of frames is slidably connected to two groups of sliding plates, and the sliding plates are fixedly connected to the second grinding part, and the shell is fixedly connected to a fifth active telescopic rod, and the moving end of the fifth active telescopic rod is fixedly connected to a vertical slot frame, and a vertical slot slidably connected to the protruding shaft is opened in the middle of the vertical slot frame, and the shell is fixedly connected to a horizontal rail slidably connected to the vertical slot frame.

[0014] As a further improvement scheme of the present invention: the first grinding part and the second grinding part both include a mounting seat, and the mounting seat is movably connected to the grinding head through a locking bolt, the mounting seat of the first grinding part is fixedly connected to the movable end of the first active telescopic frame, the mounting seat of the second grinding part is fixedly connected to the movable end of the fifth active telescopic rod, and each group of mounting seats of the second grinding part is fixedly connected to two groups of sliding sheets.

[0015] As a further improvement of the present invention: the shell is fixedly connected to the elastic leather case, and the mounting seat is fixedly connected to the elastic leather case.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When in use, the valve body is clamped and fixed using the valve body transverse movement fixing structure, and the electric lifting platform is used to adjust the height of the valve body transverse movement fixing structure, and then the valve body transverse movement fixing structure drives the valve body to move toward the deformation grinding structure, so that the three-head grinding part moves into the valve body cavity. When the inner cavity wall of the valve body to be polished is tubular, the movable telescopic parts are located at positions close to each other, and then the reverse moving part drives the connecting frame to move. While the connecting frame moves along the track, it drives the first transverse groove track changing block and the second transverse groove track changing block to move toward the first special-shaped groove and the second special-shaped groove respectively. At this time, the first transverse groove track changing block is aligned with the first special-shaped groove. Under the shielding of the first special-shaped groove, the first special-shaped groove is shielded as a horizontal groove body. Under the shielding of the second special-shaped groove by the second transverse groove track changing block, the second special-shaped groove is shielded as a horizontal groove body. At this time, under the common limitation of the first transverse groove track changing block, the first special-shaped groove, the second transverse groove track changing block and the second special-shaped groove, the movable telescopic part can only drive the second grinding part to move horizontally. Under the height adjustment of the first grinding part by the first active telescopic frame, the two groups of second grinding parts and the one group of first grinding parts are arranged on the same straight line. At this time, the rotating drive part drives the three-head grinding part to rotate through the angle adjustment part, and the two groups of second grinding parts and the one group of first grinding parts are The tubular inner cavity wall of the valve body is polished. When the inner cavity wall of the valve body to be polished is spherical, the movable telescopic parts are located at positions close to each other, and then the reverse moving part drives the connecting frame to move. The connecting frame moves along the track and drives the first arc groove track changing block and the second arc groove track changing block to move toward the first special-shaped groove and the second special-shaped groove respectively. At this time, under the shielding of the first special-shaped groove by the first arc groove track changing block and the shielding of the second special-shaped groove by the second arc groove track changing block, the first special-shaped groove and the second special-shaped groove are respectively shielded as two groups of arc groove bodies arranged concentrically. At this time, under the shielding of the first special-shaped groove by the first arc groove track changing block and the shielding of the second special-shaped groove by the second arc groove track changing block, the first special-shaped groove and the second special-shaped groove are respectively shielded as two groups of arc groove bodies arranged concentrically. Under the common limiting guidance of the groove track block and the second special-shaped groove on the movable telescopic part, the movable telescopic part can only drive the second grinding part to rotate. Under the height adjustment of the first grinding part by the first active telescopic frame, the two groups of second grinding parts and one group of first grinding parts are arranged on the same spherical surface. At this time, the rotating drive part drives the three-head grinding part to rotate through the angle adjustment part. The two groups of second grinding parts and one group of first grinding parts both grind the spherical inner cavity wall of the valve body. The angle adjustment part adjusts the positions of the first grinding part and the second grinding part by driving the three-head grinding part to rotate, thereby adjusting the grinding position of the three-head grinding part. The present invention adjusts the three-head grinding part so that the present invention is suitable for grinding the spherical inner cavity wall and the tubular inner cavity wall of the valve body, thereby improving the scope of application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3It is a schematic diagram of the structure of the cooperation of the rotation driving part, the angle adjustment part and the three-head grinding part of the present invention;

[0021] Figure 4 It is a partial three-dimensional structural schematic diagram of the three-head grinding part of the present invention;

[0022] Figure 5 It is a schematic diagram of a three-dimensional structure in which the groove plate, the first special-shaped groove, the second special-shaped groove, the first transverse groove track changing block, the first arc groove track changing block, the second arc groove track changing block, the partially movable telescopic part, and the second grinding part of the present invention cooperate with each other;

[0023] Figure 6 It is a schematic diagram of a three-dimensional structure of the connection frame, the first transverse groove track changing block, the second transverse groove track changing block, the first arc groove track changing block, and the second arc groove track changing block of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the slot plate of the present invention;

[0025] Figure 8 It is a schematic structural diagram of the grinding head of the present invention;

[0026] Fig. 9 It is a schematic structural diagram of the reverse moving part of the present invention.

[0027] In the figure: 1, base; 2, electric lifting platform; 3, valve body transverse movement fixing structure; 4, deformation grinding structure; 5, rotation drive unit; 6, angle adjustment unit; 7, three-head grinding unit; 8, shell; 9, first active telescopic frame; 10, first grinding unit; 11, bridge frame; 12, slot plate; 13, first special-shaped slot; 14, second special-shaped slot; 15, reverse moving unit; 16, connecting frame; 17, track; 19, first transverse slot track changing block; 20, second transverse slot track changing block; 21, first arc slot track changing block; 22, second arc slot track changing block; 23, mobile telescopic unit; 24, second grinding unit; 25, guide frame; 26, first main Active telescopic rod; 27, bearing frame; 28, second active telescopic rod; 29, splint; 30, vertical frame; 31, third motor; 32, prism; 33, third active telescopic rod; 34, rotation limit sleeve; 35, ring plate; 36, synchronous frame; 37, cover; 38, incomplete gear; 39, first rack; 40, second motor; 41, second gear; 42, second rack; 44, sliding shaft; 45, frame body; 46, protruding shaft; 47, fourth active telescopic rod; 48, sliding plate; 49, fifth active telescopic rod; 50, vertical slot frame; 51, cross rail; 52, mounting seat; 53, grinding head; 54, elastic leather cover. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0029] Example 1, see Figures 1 to 9 As shown, an inner cavity polishing device for valve processing includes a base 1, the base 1 is fixedly connected to an electric lifting platform 2, and also includes:

[0030] A valve body transverse movement fixing structure 3 connected to the electric lifting platform 2;

[0031] A deformation grinding structure 4 connected to the base 1, the deformation grinding structure 4 includes a rotation driving part 5 connected to the base 1, the rotation driving part 5 is connected to an angle adjustment part 6, the angle adjustment part 6 is connected to a three-head grinding part 7, the three-head grinding part 7 includes a shell 8 connected to the angle adjustment part 6, the shell 8 is fixedly connected to a first active telescopic frame 9, the moving end of the first active telescopic frame 9 is fixedly connected to a first grinding part 10, the shell 8 is connected to a bridge 11, the bridge 11 is fixedly connected to two groups of slot plates 12, the slot plates 12 are provided with a first special-shaped groove 13 and a second special-shaped groove 14, the shell 8 is connected to a reverse moving Part 15, the reverse moving part 15 is fixedly connected with two groups of connecting frames 16, the connecting frame 16 is slidably connected with a track 17 fixedly connected to the shell 8, the connecting frame 16 is fixedly connected with a first transverse groove track changing block 19, the connecting frame 16 is fixedly connected with a second transverse groove track changing block 20, the connecting frame 16 is fixedly connected with a first arc groove track changing block 21, the connecting frame 16 is fixedly connected with a second arc groove track changing block 22, the first special-shaped groove 13 and the second special-shaped groove 14 arranged on the same groove plate 12 are slidably connected with a movable telescopic part 23, the movable telescopic part 23 is connected with a second grinding part 24, and the first grinding part 10 and the second grinding part 24 have the same structure.

[0032] When in use, the valve body is clamped and fixed using the valve body transverse movement fixing structure 3, the electric lifting platform 2 is used to adjust the height of the valve body transverse movement fixing structure 3, and then the valve body transverse movement fixing structure 3 drives the valve body to move toward the deformation grinding structure 4, so that the three-head grinding part 7 moves into the valve body cavity, when the inner cavity wall of the valve body to be polished is tubular, the movable telescopic part 23 is located at a position close to each other, and then the reverse moving part 15 drives the connecting frame 16 to move, and the connecting frame 16 moves along the track 17 while driving the first transverse groove track changing block 19 and the second transverse groove track changing block 20 to move toward the first special-shaped groove 13 and the second special-shaped groove 14 respectively. At this time, under the shielding of the first special-shaped groove 13 by the first transverse groove track changing block 19 The first special-shaped groove 13 is shielded as a transverse groove body. Under the shielding of the second special-shaped groove 14 by the second transverse groove track changing block 20, the second special-shaped groove 14 is shielded as a transverse groove body. At this time, under the common limitation of the first transverse groove track changing block 19, the first special-shaped groove 13, the second transverse groove track changing block 20, and the second special-shaped groove 14, the movable telescopic part 23 can only drive the second grinding part 24 to move horizontally. Under the height adjustment of the first grinding part 10 by the first active telescopic frame 9, the two groups of second grinding parts 24 and the one group of first grinding parts 10 are arranged on the same straight line. At this time, the rotating driving part 5 drives the three-head grinding part 7 to rotate through the angle adjusting part 6, and the two groups of second grinding parts 24 and the one group of first grinding parts 10 are both The tubular inner cavity wall of the valve body is polished. When the inner cavity wall of the valve body to be polished is spherical, the movable telescopic part 23 is located at a position close to each other, and then the reverse moving part 15 drives the connecting frame 16 to move. The connecting frame 16 moves along the track 17 while driving the first arc groove track changing block 21 and the second arc groove track changing block 22 to move toward the first special-shaped groove 13 and the second special-shaped groove 14 respectively. At this time, under the shielding of the first special-shaped groove 13 by the first arc groove track changing block 21 and the shielding of the second special-shaped groove 14 by the second arc groove track changing block 22, the first special-shaped groove 13 and the second special-shaped groove 14 are respectively shielded as two groups of arc groove bodies arranged concentrically. At this time, under the shielding of the first special-shaped groove 13 by the first arc groove track changing block 21 and the second special-shaped groove 14 by the second arc groove track changing block 22, the first special-shaped groove 13 and the second special-shaped groove 14 are respectively shielded as two groups of arc groove bodies arranged concentrically. Under the common limiting guidance of the movable telescopic part 23 by the transverse groove track changing block 20 and the second special-shaped groove 14, the movable telescopic part 23 can only drive the second grinding part 24 to rotate. Under the height adjustment of the first grinding part 10 by the first active telescopic frame 9, the two groups of second grinding parts 24 and the one group of first grinding parts 10 are arranged on the same spherical surface. At this time, the rotating driving part 5 drives the three-head grinding part 7 to rotate through the angle adjustment part 6. The two groups of second grinding parts 24 and the one group of first grinding parts 10 both grind the spherical inner cavity wall of the valve body. The angle adjustment part 6 adjusts the positions of the first grinding part 10 and the second grinding part 24 by driving the three-head grinding part 7 to rotate, thereby adjusting the grinding position of the three-head grinding part 7. The present invention makes the present invention applicable to grinding the spherical inner cavity wall and the tubular inner cavity wall of the valve body by adjusting the three-head grinding part 7, so as to improve the scope of application of the present invention.

[0033] In one case of this embodiment, the valve body transverse movement fixing structure 3 includes a guide frame 25 fixedly connected to the moving end of the electric lifting platform 2, the guide frame 25 is fixedly connected to the first active telescopic rod 26, the moving end of the first active telescopic rod 26 is fixedly connected to a bearing frame 27 slidably connected to the guide frame 25, the bearing frame 27 is fixedly connected to multiple groups of second active telescopic rods 28, and the moving end of the second active telescopic rod 28 is fixedly installed with a clamping plate 29. The electric lifting platform 2 is used to adjust the height of the guide frame 25, the first active telescopic rod 26 is used to drive the bearing frame 27 to move, and the second active telescopic rod 28 drives the clamping plate 29 to move, so that the clamping plate 29 clamps the valve body placed on the bearing frame 27 to provide a limit for the valve body.

[0034] In one case of this embodiment, the rotation driving part 5 includes a stand 30 fixedly connected to the base 1, the stand 30 is fixedly connected to a third motor 31, the output shaft of the third motor 31 is fixedly connected to a prism 32, the prism 32 is connected to the angle adjustment part 6, and the stand 30 is connected to the angle adjustment part 6. The third motor 31 is used to drive the prism 32 to rotate, and the rotating prism 32 applies torque to the angle adjustment part 6, so that the angle adjustment part 6 drives the three-head grinding part 7 to rotate.

[0035] In one case of the present embodiment, the angle adjustment portion 6 includes two groups of third active telescopic rods 33 fixedly connected to the stand 30, the movable end of the third active telescopic rod 33 is fixedly connected with a rotation limit sleeve 34, the two groups of rotation limit sleeves 34 are jointly rotationally connected with a ring plate 35 slidably connected to the prism 32, the ring plate 35 is fixedly connected with a synchronous frame 36, the synchronous frame 36 is slidably connected with a cover shell 37, the cover shell 37 is fixedly connected to the prism 32, the cover shell 37 is rotationally connected to the shell 8, the shell 8 is fixedly connected with two groups of symmetrically arranged incomplete gears 38, and the synchronous frame 36 is fixedly connected with a first rack 39 meshing with the incomplete gear 38. The third active telescopic rod 33 drives the rotating limit sleeve 34 to move, so that the rotating limit sleeve 34 drives the ring piece 35 to slide along the prism 32, the ring piece 35 drives the synchronous frame 36 to move, the synchronous frame 36 drives the first rack 39 to move, the moving first rack 39 drives the incomplete gear 38 to rotate, the rotating incomplete gear 38 drives the shell 8 to rotate a certain angle, and the rotating prism 32 drives the shell 8 to rotate by driving the cover shell 37 to rotate.

[0036] In one case of this embodiment, the reverse moving part 15 includes a second motor 40 fixedly connected to the housing 8, the output shaft of the second motor 40 is fixedly connected to a second gear 41, the second gear 41 is meshedly connected to two sets of second racks 42 arranged in opposite directions, and the second racks 42 are fixedly connected to the connecting frame 16. The second motor 40 drives the second gear 41 to rotate, and the rotating second gear 41 drives the two sets of second racks 42 to move in the opposite direction, and the second racks 42 drive the connecting frame 16 to move, thereby adjusting the position of the connecting frame 16.

[0037] In one case of the present embodiment, the movable telescopic part 23 includes two groups of sliding shafts 44, one group of sliding shafts 44 is slidably connected to the first special-shaped groove 13, and the other group of sliding shafts 44 is slidably connected to the second special-shaped groove 14. The two groups of sliding shafts 44 are commonly fixedly connected to a frame body 45, and the frame body 45 is fixedly connected to a protruding shaft 46. The frame body 45 is fixedly connected to a fourth active telescopic rod 47, and the moving end of the fourth active telescopic rod 47 is fixedly connected to the second grinding part 24. Each group of frames 45 is slidably connected to two groups of slides 48, and the slides 48 are fixedly connected to the second grinding part 24. The shell 8 is fixedly connected to a fifth active telescopic rod 49, and the moving end of the fifth active telescopic rod 49 is fixedly connected to a vertical slot frame 50. A vertical slot slidably connected to the protruding shaft 46 is opened in the middle of the vertical slot frame 50, and the shell 8 is fixedly connected to a cross rail 51 slidably connected to the vertical slot frame 50. The fifth active telescopic rod 49 drives the vertical slot frame 50 to move, and the vertical slot of the vertical slot frame 50 drives the protruding shaft 46 to move, and the protruding shaft 46 drives the frame body 45 to move. During this period, the two sets of sliding shafts 44 slide in the first special-shaped slot 13 and the second special-shaped slot 14 respectively. When the first arc slot track changing block 21 and the second arc slot track changing block 22 provide guidance for the sliding shaft 44, the sliding shaft 44 moves along the arc line, and the sliding shaft 44 drives the frame body 45 to rotate, and the frame body 45 drives the fourth active telescopic rod 47 to rotate, and the fourth active telescopic rod 47 The second grinding part 24 is driven to rotate. With the extension of the fourth active telescopic rod 47, the rotation radius of the second grinding part 24 increases. When the first transverse groove track changing block 19 and the second transverse groove track changing block 20 provide guidance for the sliding shaft 44, the sliding shaft 44 moves in a straight line. The two groups of sliding shafts 44 drive the frame 45 to move in a straight line. The frame 45 drives the fourth active telescopic rod 47 to move horizontally. The fourth active telescopic rod 47 drives the second grinding part 24 to move horizontally. The fourth active telescopic rod 47 is used to adjust the position of the second grinding part 24.

[0038] In one case of the present embodiment, the first grinding part 10 and the second grinding part 24 both include a mounting seat 52, and the mounting seat 52 is movably connected to a grinding head 53 through a locking bolt. The mounting seat 52 of the first grinding part 10 is fixedly connected to the movable end of the first active telescopic frame 9, and the mounting seat 52 of the second grinding part 24 is fixedly connected to the movable end of the fifth active telescopic rod 49. The mounting seat 52 of each group of the second grinding part 24 is fixedly connected to two groups of sliding sheets 48. By removing the locking bolt, the connection between the mounting seat 52 and the grinding head 53 is released, so that the grinding head 53 can be disassembled and replaced.

[0039] Embodiment 2, based on embodiment 1, refer to Figure 2 and Figure 3 The housing 8 is fixedly connected to an elastic leather cover 54, and the mounting seat 52 is fixedly connected to the elastic leather cover 54. The elastic leather cover 54 is provided to prevent the debris generated by grinding from falling into the housing 8.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An inner cavity polishing device for valve processing, comprising a base, the base being fixedly connected to an electric lifting platform, characterized in that: Also includes: A valve body transverse movement fixing structure connected to an electric lifting platform; A deformation grinding structure connected to a base, the deformation grinding structure comprises a rotation driving part connected to the base, the rotation driving part is connected to an angle adjustment part, the angle adjustment part is connected to a three-head grinding part, the three-head grinding part comprises a shell connected to the angle adjustment part, the shell is fixedly connected to a first active telescopic frame, the moving end of the first active telescopic frame is fixedly connected to the first grinding part, the shell is connected to a bridge frame, the bridge frame is fixedly connected to two groups of slot plates, the slot plates are provided with a first special-shaped groove and a second special-shaped groove, the shell is connected to a reverse moving part, the reverse moving part is fixedly connected to two groups of connecting frames, the connecting frame is slidably connected to a track fixedly connected to the shell, the connecting frame is fixedly connected to a first transverse groove track changing block, the connecting frame is fixedly connected to a second transverse groove track changing block, the connecting frame is fixedly connected to a first arc groove track changing block, the connecting frame is fixedly connected to a second arc groove track changing block, the first special-shaped groove and the second special-shaped groove arranged on the same slot plate are slidably connected to a movable telescopic part together, the movable telescopic part is connected to the second grinding part, and the first grinding part has the same structure as the second grinding part.

2. The inner cavity polishing equipment for valve processing according to claim 1, characterized in that: The valve body transverse movement fixing structure includes a guide frame fixedly connected to the moving end of the electric lifting platform, the guide frame is fixedly connected to the first active telescopic rod, the moving end of the first active telescopic rod is fixedly connected to a supporting frame slidably connected to the guide frame, the supporting frame is fixedly connected to multiple groups of second active telescopic rods, and the moving end of the second active telescopic rod is fixedly installed with a splint.

3. The inner cavity polishing equipment for valve processing according to claim 1, characterized in that: The rotation driving part includes a stand fixedly connected to the base, the stand fixedly connected to the third motor, the output shaft of the third motor fixedly connected to a prism, the prism is connected to the angle adjustment part, and the stand is connected to the angle adjustment part.

4. The inner cavity polishing equipment for valve processing according to claim 3, characterized in that: The angle adjustment part includes two groups of third active telescopic rods fixedly connected to the stand, the movable end of the third active telescopic rod is fixedly connected with a rotation limit sleeve, the two groups of rotation limit sleeves are jointly rotationally connected with a ring plate slidably connected to the prism, the ring plate is fixedly connected with a synchronization frame, the synchronization frame is slidably connected with a cover shell, the cover shell is fixedly connected to the prism, the cover shell is rotationally connected to the shell, the shell is fixedly connected with two groups of symmetrically arranged incomplete gears, and the synchronization frame is fixedly connected with a first rack meshing with the incomplete gears.

5. The inner cavity polishing equipment for valve processing according to claim 1, characterized in that: The reverse moving part includes a second motor fixedly connected to the shell, the output shaft of the second motor is fixedly connected to a second gear, the second gear is meshingly connected to two sets of second racks arranged in opposite directions, and the second racks are fixedly connected to a connecting frame.

6. The inner cavity polishing equipment for valve processing according to claim 1, characterized in that: The movable telescopic part includes two groups of sliding shafts, one group of sliding shafts is slidably connected to the first special-shaped groove, and the other group of sliding shafts is slidably connected to the second special-shaped groove. The two groups of sliding shafts are commonly fixedly connected to a frame, and the frame is fixedly connected to a protruding shaft. The frame is fixedly connected to a fourth active telescopic rod, and the movable end of the fourth active telescopic rod is fixedly connected to the second grinding part. Each group of frames is slidably connected to two groups of sliding plates, and the sliding plates are fixedly connected to the second grinding part. The shell is fixedly connected to a fifth active telescopic rod, and the movable end of the fifth active telescopic rod is fixedly connected to a vertical slot frame, and a vertical slot slidably connected to the protruding shaft is opened in the middle of the vertical slot frame, and the shell is fixedly connected to a horizontal rail slidably connected to the vertical slot frame.

7. The inner cavity polishing equipment for valve processing according to claim 6, characterized in that: The first grinding part and the second grinding part both include a mounting seat, and the mounting seat is movably connected to a grinding head via a locking bolt. The mounting seat of the first grinding part is fixedly connected to the movable end of the first active telescopic frame, and the mounting seat of the second grinding part is fixedly connected to the movable end of the fifth active telescopic rod. Each group of mounting seats of the second grinding part is fixedly connected to two groups of sliding sheets.

8. The inner cavity polishing equipment for valve processing according to claim 7, characterized in that: The shell is fixedly connected to the elastic leather case, and the mounting seat is fixedly connected to the elastic leather case.

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