Hydraulic valve block valve port fine treatment grinding device and grinding process thereof

Abstract

The invention relates to the technical field of grinding devices, in particular to a hydraulic valve block valve port fine processing grinding device which comprises a grinding machine table, a grinding bearing plate is fixedly arranged on the grinding machine table, a mounting top plate is fixedly arranged at the upper end of the grinding bearing plate, and a guide limiting hole is formed in the mounting top plate. An electric telescopic rod is fixedly mounted at the lower end of the mounting top plate, a mounting carrier is mounted on the electric telescopic rod, and a guide matching rod is fixedly arranged at the upper end of the mounting carrier. 2, the position of the bearing mounting block is adjusted; step 3, downward movement of the motor; and fourthly, the valve port is polished.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a hydraulic valve block valve port fine processing grinding device and a grinding process thereof. Background Art

[0002] The hydraulic valve block is a complex functional block that can install various hydraulic components and realize mutual connection of components according to internal channels. It is a key component in the hydraulic transmission system. During the production process of the hydraulic valve block, the valve ports on the hydraulic valve block need to be finely processed and polished to ensure the accuracy of the hydraulic components installed later. The existing hydraulic valve block valve port polishing device is inconvenient to use. On the one hand, when polishing the valve port, it is impossible to achieve synchronous polishing of the valve port surface and the inner wall of the valve port, and polishing needs to be performed in steps, which affects the polishing work efficiency. On the other hand, the existing polishing device needs to replace different polishing tools when polishing valve ports of different diameters, which is troublesome to operate, not only making the work intensity of the staff greater, but also affecting the polishing work efficiency. Summary of the invention

[0003] The object of the present invention is to provide a hydraulic valve block valve port fine processing grinding device and grinding process thereof, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A hydraulic valve block valve port fine processing grinding device comprises a grinding machine platform, the grinding machine platform is fixedly provided with a grinding bearing plate, the upper end of the grinding bearing plate is fixedly provided with a mounting top plate, the mounting top plate is provided with a guide limit hole, and the lower end of the mounting top plate is fixedly provided with an electric telescopic rod, a mounting carrier is installed on the electric telescopic rod, the upper end of the mounting carrier is fixedly provided with a guide matching rod, and a motor is installed on the mounting carrier, a rotating shaft is installed on the motor, a supporting plate is fixedly provided at the lower end of the rotating shaft, matching protrusions are symmetrically fixedly provided on the supporting plate, a limiting guide rod is fixedly provided on the matching protrusion, and a threaded column is also fixedly provided on the supporting plate, a supporting bottom plate is fixedly provided at the lower end of the threaded column, first movable guide rods are symmetrically fixedly provided on both sides of the supporting bottom plate, and support blocks are respectively fixedly provided at four corners of the supporting bottom plate, a second movable guide rod is fixedly provided on the support block, a plug-in connecting hole is provided at one end of the supporting bottom plate, and an adjustable grinding mechanism is installed on the threaded column.

[0006] Preferably, the adjustable grinding mechanism includes a carrying plate, a carrying frame, a carrying mounting block, a movable interlocking plate, a connecting block and a movable carrying plate, the carrying plate is symmetrically fixed with positioning convex plates, the positioning convex plates are provided with guide through holes, a limiting guide rod is inserted in the guide through holes, and an installation cavity is provided on the carrying plate, a matching through hole is provided at the bottom of the installation cavity, a threaded column is inserted in the matching through hole, and a bearing is installed in the installation cavity, the bearing is matched with a driving threaded sleeve, and the driving threaded sleeve is threadedly matched with the threaded column, the lower end of the carrying plate is symmetrically hinged with a movable hinge rod, and the lower end of the movable hinge rod is hinged to the carrying frame.

[0007] Preferably, a matching movable hole is provided on the supporting frame, a first movable guide rod is inserted into the matching movable hole, and a mounting through hole is also provided on the supporting frame, upper convex positioning plates are symmetrically fixedly provided at both ends of the supporting frame, a positioning groove is provided on the inner side of the upper convex positioning plate, a matching connecting hole is provided in the positioning groove, and guide supporting plates are symmetrically fixedly provided at the upper and lower ends of one side of the upper convex positioning plate, a movable guide groove is provided on the guide supporting plate, and connecting protrusions are symmetrically fixedly provided at both ends of the supporting frame, and a connecting hinge rod is hinged on the connecting protrusion.

[0008] Preferably, a bearing mounting block is installed on the bearing frame, both ends of the bearing mounting block are inserted in the positioning grooves, an installation interlocking hole and an auxiliary interlocking hole are opened on the bearing mounting block, and a lower supporting column is fixedly provided at the lower end of the bearing mounting block, an end face grinding block is fixedly provided at the lower end of the lower supporting column, a port grinding plate is fixedly provided on the end face grinding block, and the end face grinding block and the port grinding plate are located on the lower side of the bearing frame through the installation through hole.

[0009] Preferably, a movable interlocking plate is also symmetrically installed on the supporting frame, an elastic mounting plate is fixedly provided on the movable interlocking plate, protruding guide blocks are symmetrically fixedly provided on the movable interlocking plate, the protruding guide blocks are inserted in the movable guide groove, and a matching arc block is fixedly provided at one end of the movable interlocking plate, and an auxiliary locking rod is fixedly provided at the other end.

[0010] Preferably, the other end of the connecting hinge is hinged with a connecting block, a connecting slide hole is provided on the connecting block, a second movable guide rod is inserted in the connecting slide hole, and a bearing top block is fixedly provided on the upper end of the connecting block, matching slide grooves are symmetrically provided on the bearing top block, and a linkage bearing block is installed on the bearing top block.

[0011] Preferably, a mounting lock rod is fixedly provided on the linkage carrier block, and a matching plug plate is symmetrically fixedly provided on one end of the linkage carrier block, the matching plug plate is inserted in the matching slide groove, and a driving strip plate is fixedly provided on the other end of the linkage carrier block, and a driving inclined surface is provided on the driving strip plate.

[0012] Preferably, a movable carrier plate is installed at one end of the supporting base plate, a connecting rod is fixedly provided on the movable carrier plate, the connecting rod is inserted into the connecting hole, and a connecting spring is sleeved on the connecting rod, and a bending carrier plate is fixedly provided on the upper side of the movable carrier plate.

[0013] Preferably, a positioning strip is fixedly provided on the bent carrier plate, and a plurality of positioning matching grooves are opened on the positioning strip, and positioning convex plates are inserted into the positioning matching grooves when positioning the carrier plate.

[0014] A hydraulic valve block valve port grinding process comprises the following steps:

[0015] Step 1: Positioning of workpiece: Position the hydraulic valve block to be polished on the polishing machine table;

[0016] Step 2: Adjust the position of the bearing mounting block: rotate the driving threaded sleeve to move the bearing plate downward, thereby adjusting the position of the bearing mounting block to adapt it to the size of the valve port;

[0017] Step 3: Moving the motor downward: Start the electric telescopic rod to drive the motor to move downward, and then drive the bearing mounting block to move downward to the working point;

[0018] Step 4: Valve port grinding: Start the motor to drive the bearing mounting block to rotate, and then drive the end face grinding block and the port grinding plate to rotate to achieve valve port grinding.

[0019] Compared with the prior art, the invention has the following advantages:

[0020] 1. The end face grinding block and port grinding plate arranged on the grinding machine can move synchronously. The end face grinding block can grind the end face where the valve port is located, and the port grinding plate can be inserted into the inside of the valve port to grind the inner wall of the valve port, thereby the valve port surface and the inner wall of the valve port are grinded synchronously, and the grinding efficiency is high.

[0021] 2. When grinding the valve port, the position of the bearing mounting block can be adjusted according to the diameter of the valve port, so that valve ports of different diameters can be ground. It has strong adaptability and is very convenient. There is no need to replace the grinding equipment. The bearing mounting block can be fixed simultaneously when it is adjusted to ensure its stability during the grinding process. The bearing mounting block is in an active state when not working, which is convenient for its installation and replacement.

[0022] 3. In addition, during the process of position adjustment, the bearing mounting block will drive the connecting block to move, and then drive the installation locking rod on the connecting block to move, so that the installation locking rod is inserted into the installation interlocking hole, thereby realizing the first layer of fixation of the bearing mounting block. With the movement of the connecting block, the movable interlocking plate will also be driven to move under the action of the driving strip, thereby making the auxiliary locking rod on the movable interlocking plate move and insert it into the auxiliary interlocking hole, thereby realizing the second layer of fixation of the bearing mounting block, which fully ensures the stability of the bearing mounting block during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the assembly of the grinding machine.

[0024] Figure 2 for Figure 1 A magnified schematic diagram of center A.

[0025] Figure 3 This is a schematic diagram of the structure of the grinding machine.

[0026] Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle.

[0027] Figure 5 It is a schematic diagram of the assembly of the carrying plate and the carrying frame.

[0028] Figure 6 Exploded view of the carrier plate assembly.

[0029] Figure 7 The figure is a schematic diagram of the assembly of the load-bearing frame.

[0030] Figure 8 A schematic diagram showing the assembly of the load-bearing frame and the load-bearing mounting block from a first perspective.

[0031] Fig. 9 A schematic diagram from a second perspective of the assembly of the load-bearing frame and the load-bearing mounting block.

[0032] Fig.10 This is an exploded schematic diagram of the assembly of the load-bearing frame and the movable interlocking plate.

[0033] Fig.11 An exploded schematic diagram of the assembly of the connecting block and the linkage carrier block.

[0034] In the figure: 1. grinding machine; 11. grinding bearing plate; 12. mounting top plate; 13. guide limit hole; 14. electric telescopic rod; 15. mounting carrier; 16. guide matching rod; 17. motor; 18. rotating shaft; 181. supporting plate; 182. matching convex block; 183. limiting guide rod; 19. threaded column; 191. supporting bottom plate; 192. first movable guide rod; 193. supporting block; 194. second movable guide rod; 195. plug-in connecting hole; 2. bearing plate; 21. positioning convex plate; 22. guide through hole; 23. mounting cavity; 24. matching through hole; 25. bearing; 26. driving threaded sleeve; 27. movable hinge rod; 3. bearing frame; 30. matching movable hole; 31. mounting through hole; 32. upper convex positioning plate; 33. positioning slot; 34, matching connecting hole; 35, guide bearing plate; 36, movable guide slot; 37, connecting cam; 38, connecting hinge rod; 4, bearing mounting block; 41, installation interlocking hole; 42, auxiliary interlocking hole; 43, lower bearing column; 44, end face grinding block; 45, port grinding plate; 5, movable interlocking plate; 51, elastic mounting sheet; 52, protruding guide block; 53, matching arc surface block; 54, auxiliary locking rod; 6, connecting connecting block; 61, connecting slide hole; 62, bearing top block; 63, matching slide slot; 64, linkage carrier block; 65, installation locking rod; 66, matching plug plate; 67, driving strip plate; 68, driving inclined plane; 7, movable carrier plate; 71, connecting plug rod; 72, connecting spring; 73, bending carrier plate; 74, positioning strip; 75, positioning matching slot. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 11 , the present invention provides a technical solution:

[0037] A hydraulic valve block valve port fine processing grinding device comprises a grinding machine 1, a grinding bearing plate 11 is fixedly arranged on the grinding machine 1, a mounting top plate 12 is fixedly arranged on the upper end of the grinding bearing plate 11, a guide limit hole 13 is opened on the mounting top plate 12, and an electric telescopic rod 14 is fixedly installed on the lower end of the mounting top plate 12, a mounting carrier 15 is installed on the electric telescopic rod 14, a guide matching rod 16 is fixedly arranged on the upper end of the mounting carrier 15, a motor 17 is installed on the mounting carrier 15, a rotating shaft 18 is installed on the motor 17, and a support plate 181 is fixedly arranged on the lower end of the rotating shaft 18, The support plate 181 is symmetrically fixed with mating protrusions 182, and a limiting guide rod 183 is fixedly provided on the mating protrusion 182. The support plate 181 is also fixedly provided with a threaded column 19, and a support base plate 191 is fixedly provided at the lower end of the threaded column 19. First movable guide rods 192 are symmetrically fixedly provided on both sides of the support base plate 191, and support blocks 193 are fixedly provided at the four corners of the support base plate 191 respectively, and a second movable guide rod 194 is fixedly provided on the support block 193. A plug-in connecting hole 195 is opened at one end of the support base plate 191, and an adjustable grinding mechanism is installed on the threaded column 19.

[0038] The adjustable grinding mechanism includes a carrying plate 2, a carrying frame 3, a carrying mounting block 4, a movable interlocking plate 5, a connecting block 6 and a movable carrying plate 7. A positioning convex plate 21 is symmetrically fixedly arranged on the carrying plate 2. A guide through hole 22 is provided on the positioning convex plate 21. A limiting guide rod 183 is inserted in the guide through hole 22. A mounting cavity 23 is provided on the carrying plate 2. A matching through hole 24 is provided at the bottom of the mounting cavity 23. A threaded column 19 is inserted in the matching through hole 24. A bearing 25 is installed in the mounting cavity 23. The bearing 25 is matched with a driving threaded sleeve 26. The driving threaded sleeve 26 is threadedly matched with the threaded column 19. The lower end of the carrying plate 2 is symmetrically hinged with a movable hinge rod 27, and the lower end of the movable hinge rod 27 is hinged with the carrying frame 3.

[0039] A matching moving hole 30 is provided on the supporting frame 3, in which the first moving guide rod 192 is inserted, and a mounting through hole 31 is also provided on the supporting frame 3, and upper convex positioning plates 32 are symmetrically fixedly provided at both ends of the supporting frame 3, a positioning groove 33 is provided on the inner side of the upper convex positioning plate 32, a matching connecting hole 34 is provided in the positioning groove 33, and a guide support plate 35 is symmetrically fixedly provided at the upper and lower ends of one side of the upper convex positioning plate 32, and a moving guide groove 36 is provided on the guide support plate 35, and connecting protrusions 37 are symmetrically fixedly provided at both ends of the supporting frame 3, and a connecting hinge 38 is hinged on the connecting protrusion 37.

[0040] A bearing mounting block 4 is installed on the bearing frame 3, and both ends of the bearing mounting block 4 are inserted into the positioning grooves 33. An installation interlocking hole 41 and an auxiliary interlocking hole 42 are opened on the bearing mounting block 4, and a lower supporting column 43 is fixedly provided at the lower end of the bearing mounting block 4, and an end face grinding block 44 is fixedly provided at the lower end of the lower supporting column 43, and a port grinding plate 45 is fixedly provided on the end face grinding block 44, and the end face grinding block 44 and the port grinding plate 45 pass through the installation through hole 31 and are located on the lower side of the bearing frame 3, and the port grinding plate 45 is provided with a certain curvature to facilitate fitting with the inner wall of the valve port. When grinding, the end face grinding block 44 fits with the end face where the valve port is located, and the port grinding plate 45 fits with the inner wall at the valve port.

[0041] A movable interlocking plate 5 is also symmetrically installed on the supporting frame 3, on which an elastic mounting piece 51 is fixedly provided, and on which a protruding guide block 52 is symmetrically fixedly provided. The protruding guide block 52 is inserted in the movable guide groove 36, and a matching arc block 53 is fixedly provided at one end of the movable interlocking plate 5, and an auxiliary locking rod 54 is fixedly provided at the other end. The auxiliary locking rod 54 is inserted in the auxiliary interlocking hole 42 when fixing the supporting mounting block 4. In addition, the other end of the elastic mounting piece 51 is fixed on the upper convex positioning plate 32.

[0042] The other end of the connecting hinge 38 is hinged with a connecting block 6, which has a connecting slide hole 61, in which a second movable guide rod 194 is inserted, and a bearing top block 62 is fixedly provided at the upper end of the connecting block 6, on which matching slide grooves 63 are symmetrically provided, and a linkage bearing block 64 is installed on the bearing top block 62.

[0043] A mounting lock rod 65 is fixedly provided on the linkage carrier block 64, and a matching plug plate 66 is symmetrically fixedly provided on one end of the linkage carrier block 64, and the matching plug plate 66 is inserted in the matching slide groove 63, and a driving strip plate 67 is fixedly provided on the other end of the linkage carrier block 64, and a driving inclined surface 68 is provided on the driving strip plate 67.

[0044] A movable carrier plate 7 is installed at one end of the supporting base plate 191, and a connecting rod 71 is fixedly provided on the movable carrier plate 7. The connecting rod 71 is inserted into the plug-in hole 195, and a connecting spring 72 is sleeved on the connecting rod 71. A bent carrier plate 73 is fixedly provided on the upper side of the movable carrier plate 7, and the two ends of the connecting spring 72 are respectively fixed on the supporting base plate 191 and the movable carrier plate 7.

[0045] A positioning strip 74 is fixedly provided on the bent carrier plate 73, and a plurality of positioning matching grooves 75 are opened on the positioning strip 74. The positioning matching grooves 75 are inserted with the positioning protrusions 21 when positioning the carrier plate 2. In addition, when the positioning protrusions 21 are not inserted in the positioning matching grooves 75, they are in contact with the surface of the positioning strip 74, and the connecting spring 72 is in a stretched state at this time. The positioning matching grooves 75 at different positions correspond to valve ports of different sizes.

[0046] A hydraulic valve block valve port grinding process comprises the following steps:

[0047] Step 1: Positioning of the workpiece: Positioning the hydraulic valve block to be polished on the polishing machine table 1;

[0048] Step 2: Adjust the position of the bearing mounting block 4: Rotate the driving threaded sleeve 26 to move the bearing plate 2 downward, thereby adjusting the position of the bearing mounting block 4 to adapt it to the size of the valve port;

[0049] Step 3: The motor 17 moves downward: the electric telescopic rod 14 is started to drive the motor 17 to move downward, thereby driving the bearing mounting block 4 to move downward to the working point;

[0050] Step 4: Valve port grinding: Start the motor 17 to drive the bearing mounting block 4 to rotate, and then drive the end surface grinding block 44 and the port grinding plate 45 to rotate, so as to achieve the grinding of the valve port.

[0051] When the valve port is being polished, the threaded sleeve 26 is driven to rotate so that the carrier plate 2 moves downward under the action of the thread. When the positioning convex plate 21 is aligned with the positioning matching groove 75, the positioning convex plate 21 is inserted into the positioning matching groove 75 under the action of the connecting spring 72, so that the carrier plate 2 is fixed. At the same time, the accuracy of the downward position of the carrier plate 2 is also guaranteed, and the accuracy of the position adjustment of the bearing mounting block 4 is guaranteed to adapt to the size of the valve port. That is, when the carrier plate 2 moves downward, the supporting frame 3 will be driven away from the supporting bottom plate under the action of the movable hinge rod 27. 191 moves in the reverse direction, thereby driving the adjustment of the position of the bearing mounting block 4 to ensure that the end face grinding block 44 and the port grinding plate 45 can adapt to the corresponding valve port, starting the electric telescopic rod 14 to drive the motor 17 to move downward to the working point, so that the end face grinding block 44 and the port grinding plate 45 can move downward to the working point, and then starting the motor 17 to drive the bearing mounting block 4 to rotate to achieve the grinding of the valve port, and when the bearing frame 3 moves, the connecting block 6 will be driven to move under the action of the connecting hinge 38, and as the connecting block The movement of the connecting block 6 will drive the installation locking rod 65 to be inserted into the installation interlocking hole 41, so as to realize the first layer of fixation of the bearing mounting block 4, and with the movement of the connecting block 6, the driving inclined surface 68 will contact the matching arc surface block 53, so that the movable interlocking plate 5 will be pushed to move under the action of the driving inclined surface 68, so that the elastic mounting piece 51 is in a compressed state, and at the same time, the auxiliary locking rod 54 will be driven to be inserted into the auxiliary interlocking hole 42, so as to realize the second layer of fixation of the bearing mounting block 4, which fully ensures the stability of the bearing mounting block 4 during the grinding process. After the grinding is completed, Pull the movable carrier plate 7 and rotate the threaded sleeve 26 in the opposite direction to drive the supporting frame 3 to reset. After the supporting frame 3 is reset, the supporting mounting block 4 is in an active state, which is convenient for its installation and disassembly. The supporting mounting block 4 can be automatically locked during grinding, which is very convenient and greatly improves the convenience of operation. It can adapt to grinding of valve ports of different sizes and has strong adaptability. The end face grinding block 44 grinds the end face where the valve port is located, and the port grinding plate 45 grinds the inner wall at the valve port. They can be performed simultaneously and have high grinding efficiency.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic valve block valve port fine processing and polishing device, comprising a polishing machine (1), characterized in that: A grinding bearing plate (11) is fixedly arranged on the grinding machine table (1), a mounting top plate (12) is fixedly arranged on the upper end of the grinding bearing plate (11), a guide limit hole (13) is opened on the mounting top plate (12), and an electric telescopic rod (14) is fixedly arranged on the lower end of the mounting top plate (12), a mounting carrier (15) is installed on the electric telescopic rod (14), a guide matching rod (16) is fixedly arranged on the upper end of the mounting carrier (15), and a motor (17) is installed on the mounting carrier (15), a rotating shaft (18) is installed on the motor (17), and a support plate (181) is fixedly arranged on the lower end of the rotating shaft (18), and the support plate (181) A matching protrusion (182) is symmetrically fixedly arranged on the upper surface, a limiting guide rod (183) is fixedly arranged on the matching protrusion (182), and a threaded column (19) is also fixedly arranged on the support plate (181), a supporting base plate (191) is fixedly arranged at the lower end of the threaded column (19), first movable guide rods (192) are symmetrically fixedly arranged on both sides of the supporting base plate (191), and support blocks (193) are fixedly arranged at the four corners of the supporting base plate (191), a second movable guide rod (194) is fixedly arranged on the support block (193), a plug-in connection hole (195) is opened at one end of the supporting base plate (191), and an adjustable grinding mechanism is installed on the threaded column (19).

2. A hydraulic valve block valve port fine processing and polishing device according to claim 1, characterized in that: The adjustable grinding mechanism comprises a bearing plate (2), a bearing frame (3), a bearing mounting block (4), a movable interlocking plate (5), a connecting block (6) and a movable bearing plate (7); a positioning convex plate (21) is symmetrically fixedly arranged on the bearing plate (2); a guide through hole (22) is provided on the positioning convex plate (21); a limiting guide rod (183) is inserted in the guide through hole (22); and a mounting cavity (23) is provided on the bearing plate (2); A mating through hole (24) is provided at the bottom of the cavity (23), a threaded column (19) is inserted into the mating through hole (24), a bearing (25) is installed in the mounting cavity (23), the bearing (25) is mated with a driving threaded sleeve (26), the driving threaded sleeve (26) is threadedly mated with the threaded column (19), the lower end of the supporting plate (2) is symmetrically hinged with a movable hinge rod (27), and the lower end of the movable hinge rod (27) is hinged with the supporting frame (3).

3. A hydraulic valve block valve port fine processing and polishing device according to claim 2, characterized in that: The supporting frame (3) is provided with a matching movable hole (30), a first movable guide rod (192) is inserted into the matching movable hole (30), and a mounting through hole (31) is also provided on the supporting frame (3), upper convex positioning plates (32) are symmetrically fixedly provided at both ends of the supporting frame (3), a positioning groove (33) is provided on the inner side of the upper convex positioning plate (32), a matching connecting hole (34) is provided in the positioning groove (33), and a guide support plate (35) is symmetrically fixedly provided at the upper and lower ends of one side of the upper convex positioning plate (32), a movable guide groove (36) is provided on the guide support plate (35), and connecting protrusions (37) are symmetrically fixedly provided at both ends of the supporting frame (3), and a connecting hinge rod (38) is hinged on the connecting protrusion (37).

4. A hydraulic valve block valve port fine processing and polishing device according to claim 3, characterized in that: A bearing mounting block (4) is mounted on the bearing frame (3), two ends of the bearing mounting block (4) are inserted into the positioning grooves (33), a mounting interlocking hole (41) and an auxiliary interlocking hole (42) are provided on the bearing mounting block (4), and a lower supporting column (43) is fixedly provided at the lower end of the bearing mounting block (4), an end face grinding block (44) is fixedly provided at the lower end of the lower supporting column (43), a port grinding plate (45) is fixedly provided on the end face grinding block (44), and the end face grinding block (44) and the port grinding plate (45) pass through the mounting through hole (31) and are located at the lower side of the bearing frame (3).

5. A hydraulic valve block valve port fine processing and polishing device according to claim 4, characterized in that: A movable interlocking plate (5) is also symmetrically mounted on the supporting frame (3), an elastic mounting plate (51) is fixedly mounted on the movable interlocking plate (5), a protruding guide block (52) is symmetrically fixedly mounted on the movable interlocking plate (5), the protruding guide block (52) is inserted into the movable guide groove (36), and a matching arc surface block (53) is fixedly mounted on one end of the movable interlocking plate (5), and an auxiliary locking rod (54) is fixedly mounted on the other end.

6. A hydraulic valve block valve port fine processing and polishing device according to claim 5, characterized in that: The other end of the connecting hinge rod (38) is hingedly connected with a connecting block (6), a connecting sliding hole (61) is provided on the connecting block (6), a second movable guide rod (194) is inserted into the connecting sliding hole (61), and a bearing top block (62) is fixedly provided at the upper end of the connecting block (6), a matching sliding groove (63) is symmetrically provided on the bearing top block (62), and a linkage bearing block (64) is installed on the bearing top block (62).

7. A hydraulic valve block valve port fine processing and polishing device according to claim 6, characterized in that: The linkage carrier (64) is fixedly provided with an installation lock rod (65), and one end of the linkage carrier (64) is symmetrically fixedly provided with a matching plug plate (66), the matching plug plate (66) is inserted into the matching slide groove (63), and the other end of the linkage carrier (64) is fixedly provided with a driving strip plate (67), and the driving strip plate (67) is provided with a driving inclined surface (68).

8. The hydraulic valve block valve port fine processing and polishing device according to claim 7, characterized in that: A movable carrier plate (7) is installed at one end of the supporting base plate (191), a connecting rod (71) is fixedly arranged on the movable carrier plate (7), the connecting rod (71) is inserted into the plug-in hole (195), and a connecting spring (72) is sleeved on the connecting rod (71), and a bending carrier plate (73) is fixedly arranged on the upper side of the movable carrier plate (7).

9. A hydraulic valve block valve port fine processing and polishing device according to claim 8, characterized in that: A positioning strip (74) is fixedly provided on the bent carrier plate (73), and a plurality of positioning matching grooves (75) are provided on the positioning strip (74). The positioning matching grooves (75) are plugged with positioning convex plates (21) when positioning the carrier plate (2).

10. A hydraulic valve block valve port grinding process, characterized in that: The grinding process is applicable to the hydraulic valve block valve port fine processing grinding device according to any one of claims 1 to 9, and comprises the following steps: Step 1: Positioning the workpiece: Positioning the hydraulic valve block to be polished on the polishing machine table (1); Step 2: Adjusting the position of the bearing mounting block (4): rotating the driving threaded sleeve (26) to move the bearing plate (2) downward, thereby adjusting the position of the bearing mounting block (4) to adapt it to the size of the valve opening; Step 3: Moving the motor (17) downward: starting the electric telescopic rod (14) to drive the motor (17) to move downward, thereby driving the bearing mounting block (4) to move downward to the working point; Step 4: Valve port polishing: Start the motor (17) to drive the bearing mounting block (4) to rotate, thereby driving the end surface polishing block (44) and the port polishing plate (45) to rotate, thereby achieving valve port polishing.

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