Polishing device for automobile transmission production

Abstract

The utility model discloses a polishing device for automobile gearbox production, which relates to the technical field of automobile gearbox production and comprises a base plate, four supporting legs distributed in a rectangular shape are fixedly connected to the positions, close to four corners, of the lower surface of the base plate, and rubber pads are fixedly connected to the lower surfaces of the four supporting legs. A grinding mechanism is fixedly connected to the lower side of the base plate, a positioning mechanism is rotationally connected to the inner side of the base plate, and the grinding mechanism comprises a first motor. According to the automobile gearbox production polishing device, when the diameter of the inner wall of a gearbox is not changed during polishing, the rotating direction and the angular speed and the rotating speed of a first bevel gear are consistent with those of a mechanism table, so that the position of a sliding rod is not changed, and when the diameter of the inner wall of the gearbox is changed, the angular speed and the rotating speed of the first bevel gear are larger than those of the mechanism table; and the distance between the polishing head and the mechanism table is changed to adapt to the inner wall diameters of different positions in the gearbox.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile gearbox production, in particular to an automobile gearbox production polishing device. Background Art

[0002] The gearbox is one of the important components of the car. It is divided into manual and automatic. The manual gearbox is mainly composed of gears and shafts, and produces speed and torque changes through different gear combinations, while the automatic gearbox is composed of a torque converter, planetary gears, a hydraulic pitch system and a hydraulic control system. When the automobile gearbox is produced, there are usually many burrs on the wall of the inner hole on the gearbox housing, and the inner hole needs to be polished to make it smooth.

[0003] Chinese patent document CN217942785U discloses a grinding device for automobile gearbox production, which relates to the technical field of gearbox processing. The grinding device for automobile gearbox production comprises a workbench, a grinding box with single-degree-of-freedom sliding along its height direction is arranged on the top of the workbench, a rotating shaft is rotatably connected to the side wall of the grinding box, one end of the rotating shaft is fixedly connected to a mounting plate, a grinding head is arranged on one side of the mounting plate, the other end of the rotating shaft is fixedly connected to a driven bevel gear located inside the grinding box, and the bottom of the grinding box is rotatably connected to an active bevel gear meshing with the driven bevel gear; the gearbox is placed on the top of the workbench, the grinding head is extended into the inner hole, the threaded barrel is driven to rotate inside the workbench by adjusting the driving mechanism, the threaded rod follows the threaded barrel to rotate, and the active bevel gear drives the driven bevel gear to rotate inside the grinding box, so that the rotating shaft drives the grinding head to rotate to grind the inner hole of the gearbox.

[0004] The existing technology has the following problems:

[0005] The distance between the grinding head and the grinding box on the grinding device is constant. The inner wall of the current gearbox is usually composed of multiple concentric circles of different diameters, which makes it difficult for the grinding device to grind the inner wall of the gearbox with different diameters. Utility Model Content

[0006] The utility model provides a production and grinding device for an automobile gearbox, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A production and polishing device for automobile gearboxes comprises a base plate, wherein four rectangularly distributed supporting legs are fixedly connected to the lower surface of the base plate near the four corners, the lower surfaces of the four supporting legs are fixedly connected to rubber pads, a polishing mechanism is fixedly connected to the lower side of the base plate, and a positioning mechanism is rotatably connected to the inner side of the base plate.

[0009] Preferably, the grinding mechanism includes a first motor, the lower surface of the first motor is fixedly connected to the boss on the lower surface of the base plate near the left side, the output end of the first motor is fixedly connected to the first pulley, a rotating seat is rotatably provided in the middle part of the lower surface of the base plate, a first screw rod is movably sleeved on the inner side of the rotating seat, four annularly distributed fixing grooves are provided on the outer wall of the first screw rod, the inner convex strip of the rotating seat is slidably connected to the inner side of the fixing groove, a threaded seat is fixedly sleeved in the middle part of the base plate, the inner side of the threaded seat is threadedly connected to the outer side of the first screw rod, a second pulley is fixedly sleeved on the outer wall of the rotating seat near the lower side, and a transmission track is meshed and connected to the inner sides of the second pulley and the first pulley.

[0010] Preferably, a lifting assembly is fixedly sleeved on the outer side of the rubber pad, and the lifting assembly includes a first gear, the inner side of the first gear is fixedly sleeved on the outer wall of the rotating seat near the upper side, and four annularly distributed second screw rods are rotatably connected near the middle of the lower surface of the base plate, and the outer walls of the four second screw rods are fixedly connected with second gears near the upper side, and the side of the second gear close to the first screw rod is meshed and connected with the outer side of the first gear, and the outer wall of the second screw rod is threadedly connected with a lifting plate.

[0011] Preferably, the upper end of the first screw is fixedly connected with a grinding assembly, and the grinding assembly includes a mechanism table, and the lower axis of the mechanism table is fixedly connected to the upper end of the first screw, and the side wall of the mechanism table is fixedly sleeved with four annularly distributed fixed sleeves, and the inner sides of the four fixed sleeves are movably sleeved with sliding rods, and the ends of the four sliding rods away from the first screw are fixedly connected with grinding heads.

[0012] Preferably, the inner sides of the four sliding rods are threadedly connected with a third screw rod, the middle part of the upper surface of the lifting plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a transmission rod, the upper end of the transmission rod is fixedly connected with a first bevel gear, the ends of the four third screw rods close to each other are fixedly connected with the second bevel gear, the lower side of the second bevel gear is meshed and connected with the upper side of the first bevel gear, and the outer wall of the third screw rod is rotatably connected to the boss on the inner lower surface of the mechanism table near the position of the second bevel gear.

[0013] Preferably, the positioning mechanism includes a fourth screw rod, both ends of which are rotatably connected to the inner and outer surfaces of the inner side of the base plate, and four fourth screw rods are distributed in a ring, and the outer walls of the four fourth screw rods are fixedly connected to the third gear at positions away from each other, and the outer walls of the four fourth screw rods are threadedly connected to positioning columns, and a rotating ring is rotatably connected in a groove at a position near the edge of the upper surface of the base plate, and a gear ring is fixedly connected to the lower surface of the rotating ring, and the lower side of the gear ring is meshed and connected with the upper side of the third gear.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a production and grinding device for automobile gearboxes, which adopts the cooperation of a first motor, a first pulley, a rotating seat, a first screw, a grinding assembly, a mechanism table, a fixed sleeve, a slide bar, a grinding head, a third screw bar, a second motor, a transmission rod, a first bevel gear and a second bevel gear. When the inner wall diameter of the gearbox remains unchanged during grinding, the rotation direction and angular velocity of the first bevel gear are consistent with the mechanism table, so that the position of the slide bar remains unchanged. When the inner wall diameter of the gearbox changes, the angular velocity of the first bevel gear is greater than the mechanism table, so that the slide bar moves and the distance between the grinding head and the mechanism table is changed to adapt to the inner wall diameter at different positions in the gearbox.

[0016] 2. The utility model provides a production and polishing device for automobile gearboxes, which adopts the cooperation of a positioning mechanism, a fourth screw rod, a third gear, a positioning column, a rotating circle and a gear ring. By rotating the rotating circle, four positioning columns are moved, and the positioning columns are pressed against the inner surface of the gearbox, so that the gearbox is positioned, which is convenient for placing the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the grinding mechanism of the utility model;

[0019] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the first screw rod portion of the utility model;

[0020] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the mechanism platform of the utility model;

[0021] Figure 5 It is a partial three-dimensional structural schematic diagram of the positioning mechanism of the utility model.

[0022] In the figure: 1, base plate; 2, supporting leg; 3, rubber pad; 4, grinding mechanism; 41, first motor; 42, first pulley; 43, rotating seat; 44, first screw rod; 45, fixed groove; 46, second pulley; 47, transmission track; 48, lifting assembly; 481, first gear; 482, second screw rod; 483, second gear; 484, lifting plate; 49, grinding assembly; 491, mechanism table; 492, fixed sleeve; 493, slide rod; 494, grinding head; 495, third screw rod; 496, second motor; 497, transmission rod; 498, first bevel gear; 499, second bevel gear; 410, threaded seat; 5, positioning mechanism; 51, fourth screw rod; 52, third gear; 53, positioning column; 54, rotating circle; 55, gear ring. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1 As shown, a vehicle gearbox production and polishing device comprises a base plate 1, four rectangularly distributed support legs 2 are fixedly connected to the lower surface of the base plate 1 near the four corners, rubber pads 3 are fixedly connected to the lower surfaces of the four support legs 2, a polishing mechanism 4 is fixedly connected to the lower side of the base plate 1, and a positioning mechanism 5 is rotatably connected to the inner side of the base plate 1.

[0025] It should be noted that the rubber pad 3 is used to reduce the vibration generated when the internal motor is working, so as to reduce the influence of the vibration on the device itself.

[0026] like Figure 2 , Figure 3 As shown, the grinding mechanism 4 includes a first motor 41, the lower surface of the first motor 41 is fixedly connected to the boss on the lower surface of the substrate 1 near the left side, the output end of the first motor 41 is fixedly connected to the first pulley 42, a rotating seat 43 is rotatably provided in the middle of the lower surface of the substrate 1, the inner side of the rotating seat 43 is movably sleeved with a first screw rod 44, the outer wall of the first screw rod 44 is provided with four annularly distributed fixing grooves 45, the inner side convex strip of the rotating seat 43 is slidably connected to the inner side of the fixing groove 45, a threaded seat 410 is fixedly sleeved in the middle of the substrate 1, the inner side of the threaded seat 410 is threadedly connected to the outer side of the first screw rod 44, a second pulley 46 is fixedly sleeved on the outer wall of the rotating seat 43 near the lower side, and a transmission crawler 47 is meshed and connected to the inner side of the second pulley 46 and the first pulley 42.

[0027] It should be noted that the first motor 41 drives the first pulley 42 to rotate. When the first pulley 42 rotates, it drives the second pulley 46 by relying on the transmission track 47. When the second pulley 46 rotates, it drives the rotating seat 43. The rotating seat 43 drives the first screw rod 44 to rotate by relying on the internal convex strip. The first screw rod 44 is threadedly connected to the threaded seat 410, causing the first screw rod 44 to move up or down.

[0028] like Figure 2 As shown, the outer side of the rubber pad 3 is fixedly sleeved with a lifting assembly 48, and the lifting assembly 48 includes a first gear 481. The inner side of the first gear 481 is fixedly sleeved on the outer wall of the rotating seat 43 near the upper side, and the lower surface of the base plate 1 is rotatably connected with four annularly distributed second screw rods 482 near the middle part, and the outer walls of the four second screw rods 482 are fixedly connected with second gears 483 near the upper side. The side of the second gear 483 close to the first screw rod 44 is meshed and connected with the outer side of the first gear 481, and the outer wall of the second screw rod 482 is threadedly connected with a lifting plate 484.

[0029] It should be noted that when the rotating seat 43 rotates, it drives the first gear 481 to rotate, and when the first gear 481 rotates, it drives the second gear 483 to rotate, and when the second gear 483 rotates, it drives the second screw rod 482 to rotate, and when the second screw rod 482 rotates, it drives the lifting plate 484 to move up and down, and the moving direction and speed of the lifting plate 484 are consistent with those of the first screw rod 44.

[0030] like Figure 2 , Figure 4 As shown, the upper end of the first screw rod 44 is fixedly connected with a grinding assembly 49, and the grinding assembly 49 includes a mechanism table 491. The lower axis of the mechanism table 491 is fixedly connected to the upper end of the first screw rod 44, and the side wall of the mechanism table 491 is fixedly sleeved with four annularly distributed fixed sleeves 492, and the inner sides of the four fixed sleeves 492 are movably sleeved with sliding rods 493, and the ends of the four sliding rods 493 away from the first screw rod 44 are fixedly connected with grinding heads 494.

[0031] It should be noted that when the first screw rod 44 rotates, it drives the mechanism table 491 to rotate. When the mechanism table 491 rotates, it drives the four slide rods 493 to revolve. When the slide rod 493 rotates, it drives the grinding head 494 to revolve, so that it grinds the inside of the gearbox. Since the first screw rod 44 moves up and down synchronously, the grinding head 494 moves up and down while grinding, so that the grinding head 494 can sweep the inner wall of the gearbox. The outer wall thread pitch of the first screw rod 44 is small, resulting in a small up and down movement speed of the first screw rod 44, so that the grinding head 494 can grind more fully.

[0032] like Figure 2-Figure 4As shown, the inner sides of the four sliding rods 493 are all threadedly connected with the third screw rod 495, the middle part of the upper surface of the lifting plate 484 is fixedly connected with the second motor 496, the output end of the second motor 496 is fixedly connected with the transmission rod 497, the upper end of the transmission rod 497 is fixedly connected with the first bevel gear 498, the ends of the four third screw rods 495 close to each other are all fixedly connected with the second bevel gear 499, the lower side of the second bevel gear 499 is meshed and connected with the upper side of the first bevel gear 498, and the outer wall of the third screw rod 495 is rotatably connected to the inner lower surface boss of the mechanism table 491 near the position of the second bevel gear 499.

[0033] It should be noted that the second motor 496 drives the transmission rod 497 to rotate, and when the transmission rod 497 rotates, it drives the first bevel gear 498 to rotate. Due to the rotation of the mechanism table 491, the four second bevel gears 499 revolve. Generally, the angular velocity of the first bevel gear 498 is consistent with the angular velocity of the revolution of the second bevel gear 499, resulting in that the first bevel gear 498 cannot drive the second bevel gear 499 to rotate. When it is necessary to move the slide bar 493, the angular velocity of the first bevel gear 498 is faster, so that the first bevel gear 498 drives the second bevel gear 499 to rotate, causing the second bevel gear 499 to drive the third screw rod 495 to rotate, causing the slide bar 493 to move. A sliding bar is provided on the inner side of the fixed sleeve 492 to limit the slide bar 493 to prevent the third screw rod 495 from rotating synchronously with the slide bar 493.

[0034] like Figure 1 , Figure 5 As shown, the positioning mechanism 5 includes a fourth screw rod 51, both ends of which are rotatably connected to the inner and outer surfaces of the inner side of the substrate 1, and four fourth screw rods 51 are distributed in a ring, and the outer walls of the four fourth screw rods 51 are fixedly connected to the third gear 52 at positions away from each other, and the outer walls of the four fourth screw rods 51 are threadedly connected to the positioning columns 53, and a rotating ring 54 is rotatably connected in a groove near the edge of the upper surface of the substrate 1, and a gear ring 55 is fixedly connected to the lower surface of the rotating ring 54, and the lower side of the gear ring 55 is meshed and connected with the upper side of the third gear 52.

[0035] It should be noted that, when the rotating circle 54 is rotated, the rotating circle 54 drives the gear ring 55 to rotate. When the gear ring 55 rotates, it drives the third gear 52 to rotate. When the third gear 52 rotates, it drives the fourth screw rod 51 to rotate. When the fourth screw rod 51 rotates, it drives the positioning column 53 to move axially along the fourth screw rod 51, so that the position of the positioning column 53 changes.

[0036] The working principle of the utility model is as follows: first, when the rotating seat 43 rotates, it drives the first gear 481 to rotate, and when the first gear 481 rotates, it drives the second gear 483 to rotate, and when the second gear 483 rotates, it drives the second screw rod 482 to rotate, and when the second screw rod 482 rotates, it drives the lifting plate 484 to move up and down. The moving direction and moving speed of the lifting plate 484 are consistent with the first screw rod 44. The second motor 496 drives the transmission rod 497 to rotate, and when the transmission rod 497 rotates, it drives the first bevel gear 498 to rotate. 91 rotates to cause the four second bevel gears 499 to revolve. Generally, the angular velocity of the first bevel gear 498 is consistent with the angular velocity of the second bevel gear 499, so that the first bevel gear 498 cannot drive the second bevel gear 499 to rotate. When the slide bar 493 needs to be moved, the angular velocity of the first bevel gear 498 is faster, so that the first bevel gear 498 drives the second bevel gear 499 to rotate, causing the second bevel gear 499 to drive the third screw rod 495 to rotate, causing the slide bar 493 to move. The inner side of the fixed sleeve 492 is provided with a sliding The strip is used to limit the slide bar 493 to prevent the slide bar 493 from rotating synchronously when the third screw rod 495 rotates. When the inner wall diameter of the gearbox remains unchanged during grinding, the rotation direction and angular velocity of the first bevel gear 498 are consistent with the mechanism table 491, so that the position of the slide bar 493 remains unchanged. When the inner wall diameter of the gearbox changes, the angular velocity of the first bevel gear 498 is greater than the mechanism table 491, so that the slide bar 493 moves, and the distance between the grinding head 494 and the mechanism table 491 is changed to adapt to the internal diameter of different positions in the gearbox. Wall diameter, finally, rotate the rotating circle 54, so that the rotating circle 54 drives the gear ring 55 to rotate, and when the gear ring 55 rotates, it drives the third gear 52 to rotate, and when the third gear 52 rotates, it drives the fourth screw rod 51 to rotate, and when the fourth screw rod 51 rotates, it drives the positioning column 53 to move along the axial direction of the fourth screw rod 51, so that the position of the positioning column 53 changes, and by rotating the rotating circle 54, the four positioning columns 53 move, and rely on the positioning columns 53 to resist the inner surface of the gearbox, so that the gearbox is positioned, which is convenient for the placement of the gearbox.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A production and polishing device for automobile gearboxes, comprising a base plate (1), characterized in that: Four rectangularly distributed support legs (2) are fixedly connected to the lower surface of the base plate (1) near the four corners, and rubber pads (3) are fixedly connected to the lower surfaces of the four support legs (2). A grinding mechanism (4) is fixedly connected to the lower side of the base plate (1), and a positioning mechanism (5) is rotatably connected to the inner side of the base plate (1).

2. The automobile gearbox production and polishing device according to claim 1, characterized in that: The grinding mechanism (4) comprises a first motor (41), the lower surface of the first motor (41) is fixedly connected to a boss on the lower surface of the base plate (1) near the left side, the output end of the first motor (41) is fixedly connected to a first pulley (42), a rotating seat (43) is rotatably provided in the middle of the lower surface of the base plate (1), a first screw rod (44) is movably sleeved on the inner side of the rotating seat (43), four annularly distributed fixing grooves (45) are provided on the outer wall of the first screw rod (44), the inner convex strip of the rotating seat (43) is slidably connected to the inner side of the fixing groove (45), a threaded seat (410) is fixedly sleeved in the middle of the base plate (1), the inner side of the threaded seat (410) is threadedly connected to the outer side of the first screw rod (44), a second pulley (46) is fixedly sleeved on the outer wall of the rotating seat (43) near the lower side, and a transmission crawler (47) is meshedly connected between the second pulley (46) and the inner side of the first pulley (42).

3. The automobile gearbox production and polishing device according to claim 2, characterized in that: The outer side of the rubber pad (3) is fixedly sleeved with a lifting assembly (48), and the lifting assembly (48) comprises a first gear (481). The inner side of the first gear (481) is fixedly sleeved on the outer wall of the rotating seat (43) near the upper side. Four annularly distributed second screw rods (482) are rotatably connected to the lower surface of the base plate (1) near the middle. The outer walls of the four second screw rods (482) are fixedly connected with second gears (483) near the upper side. The side of the second gear (483) near the first screw rod (44) is meshed and connected with the outer side of the first gear (481), and the outer wall of the second screw rod (482) is threadedly connected with a lifting plate (484).

4. The automobile gearbox production and polishing device according to claim 3 is characterized in that: The upper end of the first screw rod (44) is fixedly connected to a grinding assembly (49), and the grinding assembly (49) includes a mechanism table (491), and the lower axis of the mechanism table (491) is fixedly connected to the upper end of the first screw rod (44), and the side wall of the mechanism table (491) is fixedly sleeved with four annularly distributed fixed sleeves (492), and the inner sides of the four fixed sleeves (492) are movably sleeved with sliding rods (493), and the ends of the four sliding rods (493) away from the first screw rod (44) are fixedly connected to grinding heads (494).

5. The automobile gearbox production and polishing device according to claim 4, characterized in that: The inner sides of the four sliding rods (493) are all threadedly connected with a third screw rod (495), the middle part of the upper surface of the lifting plate (484) is fixedly connected with a second motor (496), the output end of the second motor (496) is fixedly connected with a transmission rod (497), the upper end of the transmission rod (497) is fixedly connected with a first bevel gear (498), the ends of the four third screw rods (495) close to each other are all fixedly connected with a second bevel gear (499), the lower side of the second bevel gear (499) is meshed and connected with the upper side of the first bevel gear (498), and the outer wall of the third screw rod (495) is rotatably connected to the inner lower surface boss of the mechanism platform (491) near the position of the second bevel gear (499).

6. The automobile gearbox production and polishing device according to claim 1, characterized in that: The positioning mechanism (5) comprises a fourth screw rod (51), the two ends of which are rotatably connected to the inner and outer surfaces of the base plate (1), and four fourth screw rods (51) are distributed in an annular manner, and the outer walls of the four fourth screw rods (51) are fixedly connected to the third gear (52) at positions away from each other, and the outer walls of the four fourth screw rods (51) are threadedly connected to the positioning columns (53), and a rotating ring (54) is rotatably connected in a groove at a position close to the edge of the upper surface of the base plate (1), and a gear ring (55) is fixedly connected to the lower surface of the rotating ring (54), and the lower side of the gear ring (55) is meshedly connected with the upper side of the third gear (52).

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