A polishing device for precision forging after forming

Abstract

The present application relates to the technical field of forging processing, and particularly relates to a polishing device for precision forging after forming. During polishing, the polishing surface of the forging may have strip textures, resulting in a rough polishing surface of the forging after polishing, affecting the polishing precision, and the forging is prone to deviation when placed, resulting in insufficient precision of subsequent polishing. In addition, the forging may be offset during polishing, resulting in insufficient stability of subsequent polishing, thereby affecting the polishing effect. A polishing device for precision forging after forming includes a base, four supporting legs arranged at the bottom of the base, and a fixed shell fixed to the base. The polishing strip moves up and down during rotation, and the arc-shaped grinding strip reciprocates between the two arc-shaped shells, thereby making the polishing surface of the forging more flat through the cross reciprocating motion between the polishing strip and the arc-shaped grinding strip during polishing, effectively avoiding the generation of textures, improving the polishing quality, and enhancing the polishing effect.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, and in particular to a grinding device for precision forgings after forming. Background Technology

[0002] In the high-end equipment manufacturing industry, the post-processing quality of precision forgings directly affects the performance and service life of the final product. It is difficult to ensure the dimensional accuracy of the forgings after forming during the forging process. Therefore, it is necessary to grind the forgings after forming. When grinding the forgings, sanding belts or manual grinding are used to ensure the dimensional accuracy of the forgings.

[0003] Because the grinding surface of the forging may show striped textures during grinding, the ground surface of the forging is relatively rough after grinding, which affects the grinding accuracy. In addition, the forging is prone to deviation when placed, which leads to insufficient precision in subsequent grinding. Furthermore, the forging may shift during grinding, which makes subsequent grinding unstable and thus affects the grinding effect. Summary of the Invention

[0004] To overcome the above-mentioned shortcomings, the present invention provides a grinding device for precision forgings after forming. It can control the grinding amount while keeping the grinding column in contact with the grinding surface of the forging. It can also limit and adjust the position of the forging when fixing it to prevent the forging from tilting, thereby improving the accuracy of grinding.

[0005] The technical implementation of the present invention is as follows: a grinding device for precision forgings after forming, comprising a base, four support feet at the bottom of the base, a fixed shell fixed to the base, a rotating component on the fixed shell, a clamping component on the rotating component, an outer shell fixed to the base, a measuring mechanism on the base, and a grinding mechanism on the measuring mechanism.

[0006] Optionally, the rotating assembly includes: a drive motor mounted on a fixed housing, a gear fixed to the output shaft of the drive motor, the gear being a gear disc rotatably connected to the fixed housing, and the gear disc meshing with the gear.

[0007] Optionally, the clamping assembly includes: a three-jaw chuck disposed on a toothed disc, three sliding seats slidably connected to the three-jaw chuck, a clamping rod fixedly connected to each of the three sliding seats, two sliding grooves opened on each of the three clamping rods, and three placement blocks fixedly connected to the three-jaw chuck.

[0008] Optionally, forgings are placed on the three placement blocks.

[0009] Optionally, the control mechanism includes: a shielding shell fixed to the base, a servo motor fixed to the base, a lead screw fixed to the output shaft of the servo motor, the lead screw being rotatably connected to the base, a movable seat being threadedly connected to the lead screw, the movable seat being slidably connected to the shielding shell, an electric push rod fixed to the base, the telescopic rod of the electric push rod passing through the base, and a limiting member fixed to the telescopic rod of the electric push rod.

[0010] Optionally, the polishing mechanism includes: a protective shell fixed to a movable base, a motor fixed to the protective shell, the output shaft of the motor passing through the protective shell, a polishing column fixed to the output shaft of the motor, a spatial cam with a guide groove, six polishing strips fixed to the movable base and slidably connected to the polishing column, the six polishing strips being slidably connected to the guide groove of the spatial cam, two arc-shaped shells fixed to the inside of the polishing column, six arc-shaped polishing strips being slidably connected between the two arc-shaped shells, and the six arc-shaped polishing strips being slidably connected to the six polishing strips respectively.

[0011] Optionally, it also includes a stabilizing mechanism for stabilizing the forging, the stabilizing mechanism comprising: three rotating blocks with chambers, the three rotating blocks being rotatably connected to three clamping rods, each clamping rod being slidably connected to a movable member, each movable member being fixedly connected to two extrusion grooves, each movable member being connected to a first compression spring between the three clamping rods, each rotating block being fixedly connected to two protrusions, the two protrusions on the three rotating blocks being slidably connected to the two extrusion grooves on the three movable members.

[0012] Optionally, it also includes a pressure-applying mechanism for ensuring the forging is placed flat. The pressure-applying mechanism includes: three piston cylinders, which are respectively fixedly connected to three clamping rods. Each of the three piston cylinders is provided with a piston rod. Each of the three piston rods is fixedly connected to three moving parts. A second compression spring is connected between each of the three moving parts and the three piston cylinders. Air pipes are connected between each of the three piston cylinders and the three rotating blocks. Moving blocks are slidably connected to the chambers of the three rotating blocks.

[0013] Optionally, it also includes a waste removal assembly for removing forging residue, the waste removal assembly including: a slag suction pipe connected to the protective shell, the slag suction pipe passing through the shell.

[0014] Optionally, it also includes a cleaning assembly for cleaning the polishing strips and the curved polishing strips, the cleaning assembly including a brush fixed to the protective housing.

[0015] The present invention has the following advantages: 1. As the grinding proceeds, the inner diameter of the forging will gradually increase, the output shaft of the servo motor will rotate slowly, and the moving seat will drive the grinding column to always keep in contact with the forging. When the grinding reaches the required value, the moving seat will contact the limiting part, the servo motor will stop, and then the forging will be precisely ground.

[0016] 2. Under the action of the guide groove of the spatial cam, the grinding strip will move up and down reciprocally while rotating. While the grinding strip moves up and down reciprocally, the arc-shaped grinding strip will slide back and forth between the two arc-shaped shells. Thus, during grinding, the cross reciprocating motion between the grinding strip and the arc-shaped grinding strip makes the grinding surface of the forging smoother, effectively avoids the generation of texture, improves the grinding quality, and enhances the grinding effect.

[0017] 3. The two extrusion grooves will squeeze the two protrusions, causing the rotating block to rotate 90 degrees and press against the top of the forging, thereby limiting the forging and preventing it from tilting, ensuring more precise grinding; as the moving block moves, it will contact the top of the forging and squeeze it to keep the forging flat, thereby applying pressure to the forging to ensure its flatness and stability during the grinding process, thus further enhancing the grinding effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of the first measurement control mechanism of the present invention.

[0022] Figure 5 This is a cross-sectional three-dimensional structural diagram of the second type of measurement control mechanism of the present invention.

[0023] Figure 6 This is a cross-sectional perspective view of the first grinding mechanism of the present invention.

[0024] Figure 7 This is a partial cross-sectional perspective view of the grinding mechanism of the present invention.

[0025] Figure 8 This is a cross-sectional perspective view of the second type of grinding mechanism of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention.

[0028] Figure 11 This is a schematic diagram of the three-dimensional structure of the stabilizing mechanism of the present invention.

[0029] Figure 12This is a three-dimensional structural diagram of the pressure application mechanism of the present invention.

[0030] Figure 13 This is a three-dimensional structural diagram showing the disassembled cross-section of the pressure application mechanism and the stabilizing mechanism of the present invention.

[0031] Figure 14 This is a three-dimensional structural diagram of the waste discharge component of the present invention.

[0032] Figure 15 This is a three-dimensional structural diagram of the cleaning component of the present invention.

[0033] The meanings of the reference numerals in the figure are as follows: 0: Forging, 1: Base, 2: Support foot, 3: Fixed shell, 4: Drive motor, 5: Gear, 6: Gear plate, 7: Clamping assembly, 70: Three-jaw chuck, 71: Placement block, 72: Sliding seat, 73: Clamping rod, 8: Outer shell, 91: Cover shell, 92: Servo motor, 93: Lead screw, 94: Moving seat, 95: Electric push rod, 96: Limiting component, 10: Grinding mechanism, 101: Protective shell, 102: Motor, 1 03: Grinding column, 104: Spatial cam, 105: Grinding strip, 106: Arc-shaped shell, 107: Arc-shaped grinding strip, 11: Stabilizing mechanism, 111: Rotating block, 112: Moving part, 113: Extrusion groove, 114: First compression spring, 115: Protruding rod, 12: Pressing mechanism, 121: Piston cylinder, 122: Piston rod, 123: Second compression spring, 124: Air pipe, 125: Moving block, 131: Slag suction pipe, 141: Brush. Detailed Implementation

[0034] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] Example 1: A grinding device for precision forgings after forming, such as Figures 1-15 As shown, it includes: a base 1, four support feet 2 located at the bottom of the base 1, a fixed shell 3 welded to the base 1, a rotating assembly on the fixed shell 3, a clamping assembly 7 on the rotating assembly, an outer shell 8 welded to the base 1, a measuring mechanism on the base 1, and a grinding mechanism 10 on the measuring mechanism.

[0036] The rotating assembly includes: a drive motor 4 mounted on a fixed housing 3, a gear 5 fixed to the output shaft of the drive motor 4, the gear 5 being a gear disk 6 rotatably connected to the fixed housing 3 inside the fixed housing 3, and the gear disk 6 meshing with the gear 5.

[0037] The clamping assembly 7 includes: a three-jaw chuck 70 disposed on the gear plate 6, three sliding seats 72 slidably connected to the three-jaw chuck 70, clamping rods 73 fixedly connected to the three sliding seats 72 respectively, two sliding grooves opened on each of the three clamping rods 73, and three placement blocks 71 fixedly connected to the three-jaw chuck 70.

[0038] Forgings 0 are placed on the three placement blocks 71.

[0039] The control mechanism includes: a shielding shell 91 fixed to the base 1, a servo motor 92 fixed to the base 1, a lead screw 93 fixed to the output shaft of the servo motor 92, the lead screw 93 being rotatably connected to the base 1, a movable seat 94 being threadedly connected to the lead screw 93, the movable seat 94 being slidably connected to the shielding shell 91, an electric push rod 95 fixed to the base 1, the telescopic rod of the electric push rod 95 passing through the base 1, and a limiting member 96 fixed to the telescopic rod of the electric push rod 95.

[0040] The polishing mechanism includes: a protective shell 101 fixed to a movable base 94; a motor 102 fixed to the protective shell 101; the output shaft of the motor 102 passing through the protective shell 101; a polishing column 103 fixed to the output shaft of the motor 102; a spatial cam 104 with a guide groove; six polishing strips 105 slidably connected to the polishing column 103, the six polishing strips 105 being slidably connected to the guide groove of the spatial cam 104; two arc-shaped shells 106 fixed inside the polishing column 103; six arc-shaped polishing strips 107 slidably connected between the two arc-shaped shells 106; and the six arc-shaped polishing strips 107 being slidably connected to the six polishing strips 105 respectively.

[0041] It also includes a waste removal assembly for removing residue from the forging, the waste removal assembly including: a slag suction pipe 131 connected to the protective shell 101, the slag suction pipe 131 passing through the shell 8.

[0042] It also includes a cleaning assembly for cleaning the polishing bar 105 and the arc polishing bar 107, the cleaning assembly including a brush 141 fixed to the protective housing 101.

[0043] Initially, the suction pipe 131 is connected to the vacuum cleaner. When grinding the inner side of the forging 0, the worker first places the forging 0 on the placement block 71 through the opening on the outer casing 8. Then, the worker controls the three sliding seats 72 on the three-jaw chuck 70 to move towards the center of the three-jaw chuck 70. As the three sliding seats 72 move, they also drive the three clamping rods 73 to move, clamping the forging 0. Then, the worker starts the drive motor 4. The output shaft of the drive motor 4 rotates, which drives the gear 5 to rotate. The rotation of the gear 5 drives the three-jaw chuck 70 to rotate through the gear plate 6. As the three-jaw chuck 70 rotates, it also drives the forging 0 to rotate. The worker can control the electric push rod 95 according to the required grinding value. The telescopic rod extends and moves the limiting member 96 to a preset position. Then, the operator starts the servo motor 92. The output shaft of the servo motor 92 rotates, which drives the lead screw 93 to rotate. The rotation of the lead screw 93 drives the moving seat 94 to move through the thread. As the moving seat 94 moves, it drives the motor 102 and the grinding column 103 to approach the inner ring of the forging 0 through the protective shell 101. After the grinding column 103 contacts the inner ring of the forging 0, it stops moving. At the same time, the operator starts the motor 102. The output shaft of the motor 102 rotates, which drives the grinding column 103 to rotate. As the grinding column 103 rotates, it grinds the inner ring of the forging 0 through the grinding strip 105 and the arc-shaped grinding strip 107. As the grinding proceeds, the diameter of the inner ring of the forging 0 gradually increases. The output shaft of the servo motor 92 rotates slowly, and the moving seat 94 drives the grinding column 103 to maintain contact with the forging 0. When the required value is reached, the moving seat 94 contacts the limit piece 96, the servo motor 92 pauses, and the forging is then precisely ground. Simultaneously, the motor 102 drives the grinding column 103 to rotate, which in turn drives the grinding strip 105 and the arc-shaped grinding strip 107 to rotate. While the grinding strip 105 rotates, it reciprocates up and down under the guidance of the spatial cam 104. This reciprocating motion causes the arc-shaped grinding strip 107 to slide back and forth between the two arc-shaped shells 106, thus allowing the grinding process to proceed smoothly between the grinding strip 105 and the arc-shaped grinding strip 107. The reciprocating motion of the grinding wheel makes the grinding surface of the forging 0 smoother, effectively avoiding the generation of texture, improving the grinding quality, and enhancing the grinding effect. After grinding, the operator turns off the motor 102, controls the output shaft of the servo motor 92 to reverse, and the reverse rotation of the output shaft of the servo motor 92 drives the grinding column 103 of the moving seat 94 to reset through the thread. The drive motor 4 is turned off, and the sliding seat 72 and clamping rod 73 of the three-jaw chuck 70 are reset. The ground forging 0 can then be removed from the placement seat. While the grinding column 103 is rotating, the brush 141 will brush off the dust and other dust attached to the grinding column 103, grinding strip 105 and arc-shaped grinding strip 107, thereby preventing it from affecting the grinding quality. At the same time, the suction pipe 131 will suck up the brushed dust.

[0044] Example 2: Based on Example 1, such as Figures 9-13 As shown, it also includes a stabilizing mechanism 11 for stabilizing the forging 0. The stabilizing mechanism 11 includes: three rotating blocks 111 with chambers, the three rotating blocks 111 being rotatably connected to three clamping rods 73, the three clamping rods 73 being slidably connected to moving parts 112, each moving part 112 being fixedly connected to two extrusion grooves 113, the three moving parts 112 being connected to the three clamping rods 73 respectively by a first compression spring 114, the three rotating blocks 111 being fixedly connected to two protrusions 115, the two protrusions 115 on the three rotating blocks 111 being slidably connected to the two extrusion grooves 113 on the three moving parts 112 respectively.

[0045] It also includes a pressure applying mechanism 12 for ensuring that the forging 0 is placed flat. The pressure applying mechanism 12 includes: three piston cylinders 121, which are respectively fixed to three clamping rods 73. Each of the three piston cylinders 121 is provided with a piston rod 122. The three piston rods 122 are respectively fixed to three moving parts 112. A second compression spring 123 is connected between the three moving parts 112 and the three piston cylinders 121. An air pipe 124 is connected between the three piston cylinders 121 and the three rotating blocks 111. Moving blocks 125 are slidably connected to the chambers of the three rotating blocks 111.

[0046] As the clamping rod 73 moves, it drives the rotating block 111 of the moving part 112 to move. The moving part 112 will contact and abut against the forging 0. Then the clamping rod 73 drives the rotating block 111 to continue moving. The first compression spring 114 is compressed. The two extrusion grooves 113 will squeeze the two protrusions 115, causing the rotating block 111 to rotate 90 degrees and press against the top of the forging 0, thereby limiting the forging 0 and preventing the forging 0 from tilting, ensuring more precise grinding. After grinding, as the clamping rod 73 resets, the first compression spring 114 gradually resets. The moving part 112 disengages from the forging 0 and resets. The reset of the moving part 112 will cause the rotating block 111 to rotate in the opposite direction and reset under the action of the extrusion grooves 113 and the protrusions 115. When the moving part 112 is pressed against the forging 0, the clamping rod 73 continues to move, which will drive the piston cylinder 121 to move. The second compression spring 123 will reset. Under the action of the piston rod 122, the liquid in the piston cylinder 121 will transfer to the chamber of the rotating block 111, causing the moving block 125 to move. When the moving block 125 moves, it will contact the top of the forging 0 and squeeze the forging 0 to keep the forging 0 flat, thereby applying pressure to the forging 0 to ensure the flatness and stability of the forging 0 during the grinding process, thereby further enhancing the grinding effect. When the clamping rod 73 resets, it will drive the piston cylinder 121 to reset. Under the action of the first and second compression springs 123, the reset of the moving part 112 will drive the piston rod 122 to reset, and the moving block 125 can retract.

[0047] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes made to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A grinding device for precision forgings after forming, characterized in that: include: The base (1) has four supporting feet (2) at the bottom of the base (1), a fixed shell (3) fixed to the base (1), a rotating component on the fixed shell (3), a clamping component (7) on the rotating component, an outer shell (8) fixed to the base (1), a measuring mechanism on the base (1), and a grinding mechanism on the measuring mechanism. The control mechanism includes: a shielding shell (91) fixed to the base (1), a servo motor (92) fixed to the base (1), a lead screw (93) fixed to the output shaft of the servo motor (92), the lead screw (93) being rotatably connected to the base (1), a movable seat (94) being threadedly connected to the lead screw (93), the movable seat (94) being slidably connected to the shielding shell (91), an electric push rod (95) fixed to the base (1), the telescopic rod of the electric push rod (95) passing through the base (1), and a limiting member (96) fixed to the telescopic rod of the electric push rod (95). The polishing mechanism includes: a protective shell (101) fixed to a movable base (94); a motor (102) fixed to the protective shell (101); the output shaft of the motor (102) passes through the protective shell (101); a polishing column (103) fixed to the output shaft of the motor (102); a spatial cam (104) with a guide groove; six polishing strips (105) fixed to the movable base (94) and slidably connected to the polishing column (103); the six polishing strips (105) are slidably connected to the guide groove of the spatial cam (104); two arc-shaped shells (106) fixed inside the polishing column (103); six arc-shaped polishing strips (107) are slidably connected between the two arc-shaped shells (106); and the six arc-shaped polishing strips (107) are slidably connected to the six polishing strips (105) respectively. It also includes a stabilizing mechanism (11) for stabilizing the forging (0), the stabilizing mechanism (11) comprising: three rotating blocks (111) with chambers, the three rotating blocks (111) being rotatably connected to three clamping rods (73), the three clamping rods (73) being slidably connected to moving parts (112), each moving part (112) being fixedly connected to two extrusion grooves (113), the three moving parts (112) being connected to the three clamping rods (73) respectively by a first compression spring (114), the three rotating blocks (111) being fixedly connected to two protrusions (115), the two protrusions (115) on the three rotating blocks (111) being slidably connected to the two extrusion grooves (113) on the three moving parts (112).

2. A grinding device for precision forgings after forming, as described in claim 1, characterized in that: The rotating assembly includes: a drive motor (4) mounted on a fixed housing (3), a gear (5) fixed to the output shaft of the drive motor (4), the gear (5) being a gear disk (6) rotatably connected to the fixed housing (3) inside the fixed housing (3), and the gear disk (6) meshing with the gear (5).

3. A grinding device for precision forgings after forming, as described in claim 2, characterized in that: The clamping assembly (7) includes: a three-jaw chuck (70) disposed on the toothed disc (6), three sliding seats (72) slidably connected to the three-jaw chuck (70), clamping rods (73) fixedly connected to the three sliding seats (72), two sliding grooves opened on each of the three clamping rods (73), and three placement blocks (71) fixedly connected to the three-jaw chuck (70).

4. A grinding device for precision forgings after forming, as described in claim 3, characterized in that: Forgings (0) are placed on the three placement blocks (71).

5. A grinding device for precision forgings after forming, as described in claim 1, characterized in that: It also includes a pressure application mechanism (12) for ensuring that the forging (0) is placed flat. The pressure application mechanism (12) includes: three piston cylinders (121), which are fixedly connected to three clamping rods (73) respectively. Each of the three piston cylinders (121) is provided with a piston rod (122). The three piston rods (122) are fixedly connected to three moving parts (112) respectively. A second compression spring (123) is connected between the three moving parts (112) and the three piston cylinders (121). An air pipe (124) is connected between the three piston cylinders (121) and the three rotating blocks (111). A moving block (125) is slidably connected to the chamber of each of the three rotating blocks (111).

6. A grinding device for precision forgings after forming, as described in claim 5, characterized in that: It also includes a waste removal assembly for removing residue from the forging (0), the waste removal assembly including a slag suction pipe (131) connected to the protective shell (101) and passing through the shell (8).

7. A grinding device for precision forgings after forming, as described in claim 6, characterized in that: It also includes a cleaning assembly for cleaning the polishing bar (105) and the arc polishing bar (107), the cleaning assembly including a brush (141) fixed to the protective housing (101).

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