Gear ring inner surface polishing clamp

Abstract

The utility model discloses a gear ring inner surface polishing clamp, which relates to the technical field of gear ring processing, and comprises a bottom frame, a support table is mounted on the bottom frame, a first motor is mounted on the inner top wall of the bottom frame, a driving disc is mounted at the output end of the first motor, the driving disc rotates in the support table, and arc-shaped grooves are formed in the driving disc in an array manner. Sliding grooves are formed in the supporting table in an array mode, clamping plates for clamping the outer side of the gear ring are connected into the sliding grooves in a sliding mode, connecting blocks are arranged at the lower ends of the clamping plates, cylindrical protruding blocks are installed on the bottom sides of the connecting blocks, the protruding blocks are connected into the arc-shaped grooves in the corresponding positions in a sliding mode, a support is installed on one side of the upper end of the bottom frame, and a polishing mechanism is installed on the support. The first motor drives the driving disc to rotate, the arc-shaped grooves in the driving disc push the protruding blocks to drive the clamping plates to move towards the center through the sliding grooves, the clamping plates clamp the gear ring, the protrusions of the limiting blocks are inserted into the teeth of the gear ring and installed on the clamping plates through the nuts, rotation is avoided, and gear rings of different models can be clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of gear ring processing, in particular to a gear ring inner surface polishing fixture. Background Art

[0002] The flywheel has a large moment of inertia. Since the work done by each cylinder of the engine is discontinuous, the engine speed also changes. When the engine speed increases, the kinetic energy of the flywheel increases and the energy is stored; when the engine speed decreases, the kinetic energy of the flywheel decreases and the energy is released. The flywheel can be used to reduce the speed fluctuation during the operation of the engine. The flywheel is generally composed of a flywheel base, a gear ring, a clutch locating pin and a bearing. The inner surface of the gear ring needs to be polished during processing. The existing processing fixture requires manual adjustment by personnel. At the same time, since the size and number of teeth of the flywheels used in different cars are different, a set of gear ring processing fixtures can only process the gear rings used with it. When processing different gear rings, the corresponding fixture needs to be replaced, which increases the workload, and it is easy to bump during the replacement process, causing damage to the fixture. Therefore, a gear ring inner surface polishing fixture is needed to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a gear ring inner surface polishing fixture to solve the above-mentioned multiple defects caused by the prior art.

[0004] A gear ring inner surface polishing fixture comprises a base frame, a support platform is installed at the upper end of the base frame, a first motor is installed on the inner top wall of the base frame, a driving disk is installed at the output end of the first motor, the driving disk rotates inside the support platform, an arc groove is arranged in an array on the driving disk, a slide groove is arranged in an array on the support platform, a clamping plate for clamping the outer side of the gear ring is slidably connected in the slide groove, a connecting block abutting on the driving disk is provided at the lower end of the clamping plate, a cylindrical protrusion is installed on the bottom side of the connecting block, the protrusion is slidably connected in the arc groove at the corresponding position, a bracket is installed on one side of the upper end of the base frame, and a polishing mechanism for grinding the inner surface of the gear ring is installed on the bracket.

[0005] Preferably, a bolt is installed on the upper side of the clamping plate, a limiting block is sleeved on the bolt, a through groove is provided on the limiting block for slidingly cooperating with the bolt, and a protrusion is provided on the limiting block for inserting into the teeth of the gear ring.

[0006] Preferably, the polishing mechanism includes a cylinder mounted on the protruding end of the bracket, a connecting frame is installed at the output end of the cylinder, a guide rod is installed at the upper end of the connecting frame and at a position symmetrical to the cylinder, the guide rod is slidably matched with the protruding end of the bracket, a second motor is installed on the inner bottom side of the connecting frame, a mounting disk is installed at the output end of the second motor, and a polishing sheet is installed at the lower end of the mounting disk.

[0007] Preferably, the side wall of the support platform is provided with an array of connecting grooves connecting with the inner side of the support platform.

[0008] Preferably, support legs for supporting the base frame are installed at the four corners of the bottom side of the base frame.

[0009] The advantages of the utility model are as follows: the utility model drives the driving disk to rotate through the first motor, the arc groove on the driving disk pushes the protrusion to move, and the protrusion drives the clamping plate to move toward the center in the sliding groove, so that the clamping plate clamps the gear ring and performs a centering operation on the gear ring, the limit block is sleeved on the bolt at the upper end of the clamping plate through the through groove, and the protrusion of the limit block is inserted into the teeth of the gear ring, and then the limit block is limited by the nut to prevent the gear ring from rotating with the polishing sheet during the grinding process. At the same time, the entire device can perform centering and clamping operations on gear rings of different models, without the need to replace the fixture to reduce the workload, and then the polishing mechanism is started to polish the inner wall of the gear ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model from different perspectives.

[0011] Figure 2 This is a schematic diagram of the structure of the utility model without the bracket and the polishing mechanism installed.

[0012] Figure 3 This is a schematic diagram of the structure of the utility model without the gear ring, bracket and polishing mechanism installed.

[0013] Figure 4 It is a schematic diagram of the structure inside the chassis of the utility model.

[0014] Figure 5 The utility model is a structural schematic diagram of the support platform, clamping plate and driving disk assembly.

[0015] Figure 6 This is a structural schematic diagram of the support platform and the clamping plate assembly of the utility model.

[0016] Figure 7 The utility model is a schematic diagram of the structure of the assembly of the splint, connecting block, protruding block and limiting block.

[0017] Among them: 1-base frame; 2-support platform; 3-first motor; 4-driving plate; 5-arc groove; 6-slide groove; 7-gear ring; 8-clamp plate; 9-connecting block; 10-bump; 11-bracket; 12-polishing mechanism; 13-bolt; 14-limiting block; 15-through groove; 16-cylinder; 17-connecting frame; 18-guide rod; 19-second motor; 20-mounting plate; 21-polishing sheet; 22-connecting groove. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figures 1 to 7 As shown, a polishing fixture for the inner surface of a gear ring comprises a base frame 1, a support platform 2 is installed at the upper end of the base frame 1, a first motor 3 is installed on the inner top wall of the base frame 1, a driving disk 4 is installed at the output end of the first motor 3, the driving disk 4 rotates inside the support platform 2, an arc groove 5 is arranged in an array on the driving disk 4, a slide groove 6 is arranged in an array on the support platform 2, a clamping plate 8 for clamping the outer side of the gear ring 7 is slidably connected in the slide groove 6, a connecting block 9 abutting on the driving disk 4 is provided at the lower end of the clamping plate 8, a cylindrical protrusion 10 is installed on the bottom side of the connecting block 9, the protrusion 10 is slidably connected in the arc groove 5 at the corresponding position, a bracket 11 is installed on one side of the upper end of the base frame 1, and a polishing mechanism 12 for grinding the inner surface of the gear ring 7 is installed on the bracket 11. The first motor 3 is electrically connected to an existing power supply, and the slide groove 6 is an inverted "T"-shaped structure. The upper end of the connecting block 9 and the two side walls close to the upper end abut against the inner wall of the slide groove 6. The slide groove 6 guides and limits the clamping plate 8 and the connecting block 9. The width of the connecting block 9 is greater than the width of the arc groove 5, thereby preventing the connecting block 9 from being embedded in the arc groove 5. The arc groove 5 extends from the outer wall of the driving disk 4 to the center of the driving disk 4.

[0020] In this embodiment, a bolt 13 is installed on the upper side of the clamping plate 8, and a limit block 14 is sleeved on the bolt 13. The limit block 14 is provided with a through slot 15 that is slidably matched with the bolt 13, and the limit block 14 is provided with a protrusion that is inserted into the teeth of the gear ring 7. The protrusion on the limit block 14 intermittently matches with the teeth of the gear ring 8, and the rotation of the gear ring 8 is limited by the protrusion on the limit block 14 during polishing. The through slot 15 is in a round rectangle, which is convenient for adjustment according to different tooth positions.

[0021] In this embodiment, the polishing mechanism 12 includes a cylinder 16 mounted on the extended end of the bracket 11, a connecting frame 17 is mounted on the output end of the cylinder 16, a guide rod 18 is mounted on the upper end of the connecting frame 17 and symmetrically to the position of the cylinder 16, the guide rod 18 is slidably matched with the extended end of the bracket 11, a second motor 19 is mounted on the inner bottom side of the connecting frame 17, a mounting plate 20 is mounted on the output end of the second motor 19, and a polishing sheet 21 is mounted on the lower end of the mounting plate 20. The second motor 19 is electrically connected to the on-site power supply, the polishing sheet 21 is bolted to the mounting plate 20, and the polishing sheet 21 can be replaced when grinding the gear ring 8 with different inner diameters.

[0022] In this embodiment, the side wall of the support platform 2 is provided with an array of connecting grooves 22 connected to the inner side of the support platform 2. By blowing air to the connecting grooves 22 on one side, the polishing debris falling into the support platform 2 is discharged from the connecting grooves 22 on the other two sides, thereby cleaning the inside of the support platform 2 and the driving disk 4.

[0023] In this embodiment, support legs for supporting the base frame 1 are installed at the four corners of the bottom side of the base frame 1 .

[0024] The working principle of the utility model is as follows: the gear ring 7 is placed on the table surface of the support table 2, and then the first motor 3 is started to drive the driving disk 4 to rotate, the arc groove 5 on the driving disk 4 pushes the protrusion 10 to move, and the protrusion 10 drives the clamping plate 8 to move toward the center in the sliding groove 6, the clamping plate 8 clamps the gear ring 7 and performs a centering operation on the gear ring 7, and then the limit block 14 is manually sleeved on the bolt 13 at the upper end of the clamping plate 8 through the through groove 15, and the protrusion of the limit block 14 is inserted into the teeth of the gear ring 7, so that the limit block 1 4 is abutted against the upper end of the clamping plate 8, and then the limit block 14 is fixed and limited by the nut, the cylinder 16 is started to push the connecting frame 17 to move downward under the guidance of the guide rod 18, and the second motor 19 is started to rotate the polishing sheet 21 to polish the inner wall of the ring gear 7. After polishing, the cylinder 16 is started in the reverse direction to drive the connecting frame 17 to move upward, and the first motor 3 is started in the reverse direction to drive the driving disk 45 to push the protrusion 10 to move away from the center of the circle, and the ring gear 7 is manually taken to complete a polishing cycle.

[0025] The utility model drives the driving disk 4 to rotate by the first motor 3, and the arc groove 5 on the driving disk 4 pushes the protrusion 10 to move, and the protrusion 10 drives the clamping plate 8 to move toward the center in the sliding groove 6, so that the clamping plate 8 clamps the ring gear 7 and performs a centering operation on the ring gear 7, and the limit block 14 is sleeved on the bolt 13 at the upper end of the clamping plate 8 through the through groove 15, and the protrusion of the limit block 14 is inserted into the teeth of the ring gear 7, and then the limit block 14 is limited by the nut to prevent the ring gear 7 from rotating with the polishing sheet 21 during the grinding process. At the same time, the whole device can perform centering and clamping operations on ring gears 7 of different models, without the need to replace the fixture to reduce the workload, and then the polishing mechanism 12 is started to polish the inner wall of the ring gear 7.

[0026] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A gear ring inner surface polishing fixture, characterized in that: The invention comprises a base frame (1), a support platform (2) is installed at the upper end of the base frame (1), a first motor (3) is installed on the inner top wall of the base frame (1), a driving disk (4) is installed at the output end of the first motor (3), the driving disk (4) rotates inside the supporting platform (2), an arc groove (5) is arranged in an array on the driving disk (4), a slide groove (6) is arranged in an array on the supporting platform (2), a clamping plate (8) for clamping the outer side of the gear ring (7) is slidably connected in the slide groove (6), a connecting block (9) abutting against the driving disk (4) is provided at the lower end of the clamping plate (8), a cylindrical protrusion (10) is installed on the bottom side of the connecting block (9), and the protrusion (10) is slidably connected in the arc groove (5) at a corresponding position, a bracket (11) is installed on one side of the upper end of the base frame (1), and a polishing mechanism (12) for grinding the inner surface of the gear ring (7) is installed on the bracket (11).

2. The inner surface polishing fixture of a gear ring according to claim 1, characterized in that: A bolt (13) is installed on the upper side of the clamping plate (8), a limit block (14) is sleeved on the bolt (13), a through groove (15) is provided on the limit block (14) for slidingly matching with the bolt (13), and a protrusion is provided on the limit block (14) for inserting into the teeth of the gear ring (7).

3. The inner surface polishing fixture of a gear ring according to claim 1, characterized in that: The polishing mechanism (12) comprises a cylinder (16) mounted on the protruding end of the bracket (11); a connecting frame (17) is mounted on the output end of the cylinder (16); a guide rod (18) is mounted on the upper end of the connecting frame (17) and at a position symmetrical to the cylinder (16); the guide rod (18) is slidably matched with the protruding end of the bracket (11); a second motor (19) is mounted on the inner bottom side of the connecting frame (17); a mounting plate (20) is mounted on the output end of the second motor (19); and a polishing sheet (21) is mounted on the lower end of the mounting plate (20).

4. The inner surface polishing fixture of a gear ring according to claim 1, characterized in that: The side wall of the support platform (2) is provided with an array of connecting grooves (22) that are connected to the inner side of the support platform (2).

5. The inner surface polishing fixture of a gear ring according to claim 1, characterized in that: Support legs for supporting the base frame (1) are installed at the four corners of the bottom side of the base frame (1).

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