KR101120233B1 - Turning Unit for Floor Frame in Car - Google Patents

Abstract

The present invention relates to a vehicle lower frame rotating apparatus that can shorten the work process to improve the production efficiency, significantly reduce the manufacturing cost, construction cost and construction time, and can be applied regardless of the type of vehicle. The vehicle lower frame rotating apparatus includes a pair of vertical moving parts installed on both sides of a fixed frame fixed by a plurality of fixed supports under the installation frame; An upper and lower operating part installed at an upper portion of the fixed frame so that both end portions thereof are connected through the pair of vertical movement parts and the rack and pinion gear to simultaneously move the pair of vertical movement parts up and down; A front gripping pivot installed at a lower portion of the vertical moving part installed at one side of the fixed frame to grip and then rotate one side of the lower frame of the vehicle; Left and right transfer unit is provided in the lower portion of the vertical transfer unit installed on the other side of the fixed frame; And a rear gripping portion installed below the left and right conveying portion to operate the front gripping portion and to grip and rotate the other side of the lower frame of the vehicle.

Automobile lower frame, front gripping pivot, rear gripping pivot, rotating device, left and right transfer section

Description

Turning Unit for Floor Frame in Car}

1 is a schematic overall configuration diagram of a conventional vehicle lower frame rotating apparatus;

2 is an overall configuration diagram of a vehicle lower frame rotating apparatus according to an embodiment of the present invention.

3 is a front view and a side view of a vertical moving part equipped with a front gripper at a lower part thereof;

Figure 4 is another front view and side view of the up and down moving unit equipped with a rear gripping rotation unit at the bottom;

5 is a front view of the front gripper.

6 is a side view of the front gripper;

7 is a front view of the left and right transfer unit and the rear gripping rotation unit;

8 is a right side view of the left and right transfer unit and the rear gripping rotation unit;

9 is a left side view of the left and right transfer unit and the rear gripping rotation unit;

10 is a pneumatic circuit diagram of the front and rear gripping rotation unit;

<Description of the symbols for the main parts of the drawings>

(10) (10a): Up and down moving part 11 (11a): Air tank

(12) (12a): Booster (13): Platform Conveyor

14: support base 15: vehicle lower frame

20: up and down operating part 30: front gripping rotation part

40: left and right transfer unit 50: rear holding pivot unit

60: mounting frame 70: fixed support

80: fixed frame 90 (90a): post

(91) (91a): Hanger (93) (93a): Weight

(94) (94a): Chain 95 (95a) (301 ') (404'): Roller

(100) (100a): guide bracket 101 (101a): fixing bar

(102) (102a): vertical moving frame (103) (103a): rack gear

200: rotary motor 201 (201a): universal joint

(202) (202a): Bevel Gear Box (203) (203a): Pinion Gear

300, 500: clamp frame 301, 404: support bracket

(302): hinge bracket 303 (504a): motor bracket

304, 504: turning motor 305, 505: turn shaft

(306) (506): Bearing 307 (507): Turn frame

(308) (308a) (308b) (308c) (508) (508a) (508b) (508c): clamp cylinder

309 (309a) 509 (509a): clamp block

(310) (311): Front clamper (510) (511): Rear clamper

(312) (312a): front attachment (313) (513): annular ring

(313 ') (401) (401a) (513'): guide rail

400: guide plate 402 (402a): side moving plate

403: moving frame 405: left and right transfer cylinder

(501): tension frame 502 (502a): spring bracket

503 (503a): Synchronous deviation absorbing device (512) (512a): Rear attachment

5030 (5030a): spring end block 5031 (5031a): spring shaft

(5032) (5032a): elastic member

The present invention relates to a vehicle lower frame rotating apparatus, more specifically can be used corresponding to all vehicle models, and can raise, lower, rotate all of the lower frame of the vehicle in a single process, significantly shortening the work process and productivity It is possible to improve the construction space, and there is no need for a separate side lifter, so there is no need for pit construction, so it is easy to secure the construction space, and the construction cost and construction period are greatly reduced. The present invention relates to a vehicle lower frame rotating device that can lower the failure rate significantly because it is inexpensive and does not move left and right.

In general, the undercarriage of the car is underturned while the car is upside down. As described above, the vehicle lower frame in which the lower work is completed in the inverted state should be rotated to the normal position and then moved to the next work process before moving to the next work process. However, since the lower frame of the vehicle is a heavy object, a worker cannot rotate by hand and requires a separate rotating device.

A general configuration and operation of a conventional vehicle lower frame rotating apparatus for rotating the lower frame of the vehicle in which the lower work is completed will be described with reference to FIG. 1. FIG. 1 is a schematic overall schematic view of a conventional vehicle lower frame rotating apparatus, as shown in FIG. 1, a pair of transfers 2 installed to be moved left and right on an installation frame 1; A support (3) installed below the pair of transfers (2); And front and rear gripping pivots 4 and 5 installed below the support 3.

Looking at the working process of rotating the lower vehicle frame 6, the lower operation is completed to the normal position by using the conventional vehicle lower frame rotation device configured as described above are as follows. The first side lifter 7 first raises the vehicle lower frame 6 while traveling in synchronization with the first slat conveyor 8 while the vehicle lower frame 6 is loaded. After the vehicle lower frame 6 has been moved to the lower part of the vehicle lower frame rotating device, the first side lifter 7 raises the vehicle lower frame 6 secondly to load the vehicle lower frame rotating device. . After the first side lifter 7 rises a second time, the front and rear gripper rotating parts 4 and 5 clamp the vehicle lower frame 6 and then rotate to rotate the vehicle lower frame 6. At the same time as it returns to the normal position, the transfer 2 of the vehicle lower frame rotating device is activated to transfer the vehicle lower frame 6 to the second side lifter 7a. After the vehicle lower frame 6 is returned to its normal position and transported to the second side lifter 7a, the second side lifter 7a is raised to the front and rear gripping pivots 4,5. Unload the clamped vehicle lower frame (6). The second side lifter 7a on which the vehicle lower frame 6 is loaded unloads the vehicle lower frame 6 to the second slat conveyor 8a while synchronously traveling with the second slat conveyor 8a. At the same time, the front and rear gripping pivots 4 and 5 are rotated to their original positions while the transfer 2 is operated to return the vehicle lower frame rotating device to its original position.

The conventional vehicle lower frame rotating apparatus configured as described above raises and lowers the vehicle lower frame conveyed by the slat conveyor while driving in synchronism with the first and second slat conveyors because the front and rear grip rotation parts cannot move up and down. It requires a separate first and second side lifter to enable the pit work for installing the first and second side lifter, so the construction is complicated and the construction time is very long, the construction cost and production cost As well as very expensive, there was a problem that it is very difficult to secure the construction space.

In addition, the failure rate is very high by adopting the synchronous driving method, there is a problem that the productivity and work efficiency is lowered because the operation is various and complicated to go through various work processes.

In addition, the distance between the front gripper and the rear gripper cannot be adjusted in response to the full length of the lower frame of the vehicle due to the change of the vehicle model. There was a very big problem that no frame rotating device could be used at all.

Therefore, an object of the present invention is to rotate the vehicle lower frame in the inverted state after completing the lower work to the normal position regardless of the change in the overall length and weight of the vehicle lower frame due to the change of vehicle model to securely seat on the platform conveyor It is to provide a frame rotating device.

It is another object of the present invention to provide an automobile lower frame rotating apparatus which can greatly increase productivity by greatly shortening the work process by allowing the work of raising, rotating, lowering and loading the platform conveyor of a car frame in a single process. will be.

Another object of the present invention is to be able to raise the lower frame of the vehicle without the need for a separate side lifter, so that the construction space is not easy to secure the construction space, and the construction cost and construction time can be greatly reduced. It is to provide a vehicle lower frame rotating device.

Still another object of the present invention is to provide a vehicle lower frame rotating apparatus which can reduce the failure rate significantly because the overall configuration is simple and the manufacturing cost of the equipment is low, and the fixed type does not move left and right.

In order to achieve the above object, the present invention is a vehicle lower frame rotating device for rotating the lower frame of the lower vehicle is completed to the normal position, installed on both sides of the fixed frame fixed by a plurality of fixed support in the lower portion of the installation frame A pair of vertical movement parts; An upper and lower operating part installed at an upper portion of the fixed frame so that both end portions thereof are connected through the pair of vertical movement parts and the rack and pinion gear to simultaneously move the pair of vertical movement parts up and down; A front gripping pivot installed at a lower portion of the vertical moving part installed at one side of the fixed frame to grip and then rotate one side of the lower frame of the vehicle; Left and right transfer unit is provided in the lower portion of the vertical transfer unit installed on the other side of the fixed frame; And a rear grip rotation unit installed below the left and right transfer unit and configured to rotate after the front grip rotation unit is operated and the other side of the vehicle lower frame is gripped.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is an overall configuration diagram of a vehicle lower frame rotating apparatus according to an embodiment of the present invention, the vehicle lower frame rotating apparatus according to an embodiment of the present invention is a pair of vertical movement as shown in FIG. The unit 10, 10a, the upper and lower operation unit 20, the front gripping rotation unit 30, the left and right conveying unit 40, the rear gripping rotation unit 50 is configured.

The front and rear moving parts 10 and 10a are installed at both sides of the fixing frame 80 fixed by the plurality of fixing supports 70 at the lower portion of the installation frame 60 to hold the vehicle lower frame. The gripping rotation unit 30, 50 serves to lower and raise.

In addition, the vertical operation unit 20 is installed on the upper portion of the fixed frame 80, both ends of the pair of vertical movement unit 10, 10a, rack gear 103 (103a) and pinion gear ( By connecting through 203 and 203a, the pair of up and down moving parts 10 and 10a simultaneously moves up and down.

In addition, the front gripping rotation unit 30 is installed on the lower portion of the up and down moving unit 10 installed on one side of the fixed frame 80 to hold and rotate one side of the lower frame of the vehicle, the rear gripping The rotating unit 50 is installed below the left and right conveying unit 40 so as to operate the front gripping rotating unit 30 and at the same time rotate the other side of the lower frame of the vehicle.

In addition, the left and right transfer unit 40 installed on the lower portion of the up and down moving unit 10a installed on the other side of the fixed frame 80 may be moved left and right by the rear grip rotation unit 50 corresponding to the full length of the lower frame of the vehicle. It serves to respond to the change in the length of the lower frame of the vehicle according.

In addition, a pair of hangers 91 and 91a supported by a plurality of posts 90 and 90a are installed at both ends of an upper surface of the fixed frame 80, and a lower portion of the pair of hangers 91 and 91a. Weight boxes 92 and 92a are installed in the weight boxes, and weights 93 and 93a are disposed in the weight boxes 92 and 92a to be moved up and down along the weight boxes 92 and 92a. Is inserted. As described above, the weights 93 and 93a inserted into the weight boxes 92 and 92a are formed by the upper one side and the chains 94 and 94a of the front gripper 30 and the left and right transfer unit 40. Connected, the chains 94 and 94a are supported by a plurality of rollers 95 and 95a attached to the bottom surfaces of the hangers 91 and 91a. As described above, the front gripping rotation unit 30 and the left and right conveying unit 40 and the weights 93 and 93a are connected to each other by the chain 94 and 94a. The pair of vertical moving parts 10 and 10a may be moved upward and downward.

The configuration of the up and down moving unit will be described in detail with reference to FIGS. 3 and 4 as follows.

3 and 4 are a front view and a side view of a vertical movement unit, in which a front and rear gripping rotation unit is mounted at a lower portion thereof, and the vertical movement unit 10 and 10a are guide brackets 100 as shown in FIGS. 3 and 4. ) 100a, the fixing bar 101 (101a), and the vertical movement frame 102 (102a) and rack gears (103, 103a) is configured to include, the guide bracket (100, 100a) is fixed It is mounted on the upper portion of the frame 80, the fixing bar 101, 101a is mounted on both sides of the upper and lower sides of the guide bracket 100, 100a, and the upper and lower operating parts on the guide bracket 100, 100a. As the 20 is operated, the vertical movement frames 102 and 102a are inserted and installed to be guided by the guide brackets 100 and 100a and move upward and downward, and the vertical movement frames 102 ( One side of both sides of the 102a is connected to the pinion gear of the up and down operation unit 20, which will be described later, to move the up and down moving frames 102 and 102a. The rack gears 103 and 103a are mounted to move downward.

Again, with reference to Figure 2 described in detail the up and down operating unit as follows.

As shown in FIG. 2, the vertical operation unit 20 includes a rotary motor 200, a universal joint 201, 201 a, a bevel gear box 202, 202 a, and pinion gear 203, 203 a. The rotary motor 200 is installed in the center of the upper surface of the fixed frame 80, one end of a pair of universal joint 201, 201a is connected to both ends of the rotary shaft of the rotary motor 200 Bevel gear boxes 202 and 202a are connected to the other end of each of the universal joints 201 and 201a, and the vertical movement of both ends of the rotational shafts of the power direction converting devices 202 and 202a. A pair of pinion gears 203 and 203a connected to the rack gears 103 and 103a of the parts 10 and 10a are mounted.

The up and down operating unit 20 configured as described above is operated as follows. When the rotary motor 200 is operated, a pair of universal joints 201 and 201a connected to both ends of the rotary shaft of the rotary motor 200 simultaneously rotate and a power direction connected to the universal joints 201 and 201a. The converters 202 and 202a rotate the pinion gears 203 and 203a by changing the direction of the rotational force of the universal joints 201 and 201a. The pinion gears 203 and 203a rotated as described above are engaged with and engaged with the rack gears 103 and 103a of the vertical moving parts 10 and 10a to provide the rack gears 103 and 103a. The up and down moving frame (102) (102a) of the up and down conveying unit (10) (10a) to be raised and lowered.

As described above, the front and rear gripper rotating parts 30 and 50 and the left and right conveying parts 40 mounted on the lower part of the upper and lower conveying parts 10 and 10a can be freely raised and lowered to raise the vehicle lower frame. For this reason, there is no need for a side lifter that has been used in the past. It is very easy to secure the construction space.

The front gripping rotation unit will be described in detail with reference to FIGS. 5 and 6 as follows.

5 is a front view of the front gripping pivot, and FIG. 6 is a side view of the front gripping pivot. As shown in FIGS. 5 and 6, the front gripping pivot 30 includes a clamp frame 300 and a roller 301. Support bracket 301, hinge bracket 302, motor bracket 303, turning motor 304, turn shaft 305, multiple bearings 306, turn frame 307, clamp cylinder (308) (308a) (308b) (308c), clamp blocks (309) (309a), front clampers (310) (311), front attachments (312) (312a) and guide rails (313 ') It is configured to include an annular ring 313, the clamp frame 300 is installed in the lower portion of the up and down moving part 10 located on one side of the fixed frame 80, on one side of the clamp frame 300 A support bracket 301 is mounted, and a roller 301 ′ is mounted below the support bracket 301. In addition, a hinge bracket 302 is mounted on one side lower portion of the clamp frame 300, a motor bracket 303 is hingedly connected to the hinge bracket 302, and a turning surface is connected to a lower surface of the motor bracket 303. The motor 304 is mounted. That is, the turning motor 304 is hinged by the hinge bracket 302 and the motor bracket 303. In addition, one end of the turning shaft 305 is connected to one end of the rotating shaft of the turning motor 304 to be interlocked with the rotating shaft of the turning motor 304, and one side of the turn shaft 305 has a plurality of bearings 306. Supported by). In addition, a turn frame 307 is installed at the other end of the turn shaft 305, and a plurality of clamp cylinders 308, 308a, 308b (operable separately) at both ends of the upper and lower surfaces of the turn frame 307 ( 308c is installed, and a pair of clamp blocks 309 and 309a are mounted at both ends of one side of the turn frame 307. In addition, the upper and lower pairs of front clampers 310 and 311 are hingedly connected to the respective clamp blocks 309 and 309a. That is, a pair of front clampers 310 and 311 formed by a pair of front upper clampers 310a and 311a and a front lower clamper 310b and 311b is hinged to each of the clamp blocks 309 and 309a. In addition, the center portion of the front clamper 310, 311 is rotated around the hinge of the clamp block (309) 309a by being connected to the clamp cylinders (308, 308a, 308b, 308c). That is, the front upper clampers 310a and 311a are connected to the clamp cylinders 308 and 308a installed on both sides of the turn frame 307, and the front lower clampers 310a and 311a are connected to the turn frame ( 307 is connected to each of the clamp cylinders 308b and 308c provided on both sides of the lower part, so that the hinges of the clamp blocks 309 and 309a are centered as the clamp cylinders 308, 308a, 308b and 308c operate. Each is rotated separately. The clamp cylinders 308, 308a, 308b, and 308c preferably use a Sel-Top Cylinder capable of an intermediate stop. In addition, at the other end of each of the front clampers 310 and 311, that is, the other ends of the front upper clampers 310a and 311a and the front lower clampers 310b and 311b, the front attachment 312 and 312a are provided. Is fitted. In addition, an annular ring 313 is mounted to the front of the turn frame 307, a guide rail 313 ′ is provided at one side of the annular ring 313, and the guide rail 313 ′ is supported by the annular ring 313. It is supported by a roller 301 'mounted under the bracket 301. That is, the guide shaft 313 ′ of the annular ring 313 mounted to the front of the turn frame 307 is supported by the roller 301 ′ mounted below the support bracket 301 so that the turn shaft 305 is supported. Supported by the plurality of bearings 306 and the annular ring 313 can extend the life of the plurality of bearings 306 supporting the turn shaft 305 as well as the front gripping pivot 30. Prevent sagging. In addition, when the front gripping pivot 30 rotates, the annular ring 313 also rotates, but the guide rail 313 ′ of the annular ring 313 is mounted on a lower portion of the support bracket 301. 301 ') to minimize friction during rotation.

The front gripping pivot 30 is operated as follows. As the turning motor 304 operates, the turn shaft 305 connected to the rotating shaft of the turning motor 304 rotates, and the turn shaft 305 rotates and the turn shaft 305 simultaneously. Exposed turn frame 307 and a plurality of clamp cylinders 308, 308a, 308b, 308c, clamp blocks 309, 309a, and front clampers 310, 311 mounted on the turn frame 307. ) Is rotated, and the front clampers 310 and 311, that is, the front upper clampers 310a and 311a and the front lower clampers 310b and 311b are respectively installed on both sides of the upper and lower surfaces of the turn frame 307. As the clamp cylinders 308, 308a, 308b, 308c operate, they are operated separately.

Referring to Figures 7 and 8 will be described in detail the left and right transfer unit as follows.

7 is a front view of the left and right transfer unit and the rear gripping rotation unit, and FIG. 8 is a right side view of the left and right transfer unit and the rear gripping rotation unit. As shown in FIGS. , Guide rails 401 and 401a, side moving plates 402 and 402a, a moving frame 403, a support bracket 404, and a left and right transfer cylinder 405, and the guide plate 400. Is installed in the lower portion of the up and down moving part (10a) located on the other side of the fixed frame 80, the guide plate 400 is provided with guide rails (401, 401a) on both sides. Each of the guide rails 401 and 401a is equipped with a pair of side moving plates 402 and 402a so as to be able to move left and right along the guide rails 401 and 401a. A moving frame 403 is positioned between the pair of side moving plates 402 and 402a, and the moving frame 403 is disposed on one side of the pair of side moving plates 402 and 402a. This attachment and fixation is supported, and a support bracket 404 having a roller 404 'is mounted on the front center portion of the moving frame 403. In addition, one side of the left and right transfer cylinder 405 is fixed to one lower surface of the guide plate 400, and the other side of the left and right transfer cylinder 405 is connected to a central portion of one side of the moving frame 403.

The left and right conveyer 40 moves the rear gripper 50 to the left and right when the length of the lower frame of the vehicle is longer or shorter than the distance between the front gripper 30 and the rear gripper 50. It works as follows. When the left and right transfer cylinder 405 operates to move the moving frame 403 to the left and right, the side moving plates 402 and 402a mounted on both sides of the moving frame 403 are guides of the guide plate 400. At the same time as the rails 401 and 401a are moved to the left and the right, the rear gripper 50 mounted on one side of the moving frame 403 is also moved to the left and the right to correspond to the length of the lower frame of the vehicle. .

The rear gripping rotation unit will be described in detail with reference to FIGS. 7 to 9.

FIG. 9 is a left side view of the left and right transfer parts and the rear gripping rotation part. As shown in FIGS. 7 to 9, the rear gripping rotation part 50 includes a clamp frame 500, a tension frame 501, and a spring bracket 502 ( 502a, synchronous deviation absorber 503, 503a, turning motor 504, turn shaft 505, multiple bearings 506, turn frame 507, clamp cylinder 508 (50a8) 508b 508c, clamp blocks 509 and 509a, rear clampers 510 and 511, rear attachments 512 and 512a, and annular rings 513 with guide rails 513 '. The clamp frame 500 is mounted below one side of the left and right transfer unit 40, that is, on one side of the moving frame 403, and a tension frame 501 is mounted on one side of the clamp frame 500. A pair of spring brackets 502 and 502a are mounted at both ends of the lower surface of the tension frame 501, and one end of each of the synchronous deviation absorbing devices 503 and 503a is mounted to each of the spring brackets 502 and 502a. Is connected, the other end of the synchronous deviation absorbing device (503) (503a) is equipped with a turning motor 504. The turning shaft 505 is connected to the rotating shaft of the turning motor 504, one side of the turn shaft 505 is supported by a plurality of bearings 506, and the other end of the turn shaft 505 has a turn frame ( 507 is installed, and a plurality of clamp cylinders 508, 508a, 508b, and 508c, which are separately operable, are installed at both ends of upper and lower surfaces of the turn frame 507, and one side of the turn frame 507. At both ends, a pair of clamp blocks 509 and 509a are mounted. The clamp cylinders 508, 508a, 508b, and 508c may also be preferably used in a cell-top cylinder which allows an intermediate stop like the clamp cylinder of the front gripping pivot. Upper and lower pairs of rear clampers 510 and 511 are hinged to each of the clamp blocks 509 and 509a. That is, a pair of rear clampers 510 and 511 formed of a pair of rear upper clampers 510a and 511a and rear lower clampers 510b and 511b is hinged to the respective clamp blocks 509 and 509a. In addition, a center portion of the rear clampers 510 and 511 is connected to the clamp cylinders 508, 508a, 508b, and 508c so as to rotate about the hinges of the clamp blocks 509 and 509a. That is, the rear upper clampers 510a and 511a are connected to clamp cylinders 508 and 508a provided on both sides of the turn frame 507, and the rear lower clampers 510b and 511b are connected to the turn frame 507. As the clamp cylinders 508, 508a, 508b, and 508c operate by being connected to the clamp cylinders 508b and 508c respectively provided on both sides of the lower part, the hinges of the clamp blocks 6501 and 509a are operated. Each is rotated separately. Further, rear attachers 512 and 512a are provided at the other ends of the rear clampers 510 and 511, that is, the other ends of the rear upper clampers 510a and 511a and the rear lower clampers 510b and 511b. Is fitted. In addition, an annular ring 513 is mounted to the front of the turn frame 507, a guide rail 513 ′ is provided at one side of the annular ring 513, and the guide rail 513 ′ is supported. It is supported by a roller 404 'mounted under the bracket 404. That is, the guide shaft 513 'of the annular ring 513 mounted to the front of the turn frame 507 is supported by the roller 404' mounted below the support bracket 404 so that the turn shaft 505 Supported by a plurality of bearings 506 and the annular ring 513 can extend the life of the plurality of bearings 506 supporting the turn shaft 505 as well as the rear gripping portion 50. Prevent sagging. In addition, when the rear gripping rotation unit 50 rotates, the annular ring 513 is also rotated, but the guide rail 513 'of the annular ring 513 is mounted on the lower portion of the support bracket 404. 404 ') to minimize friction during rotation.

The rear gripping pivot 50 is operated as follows. The turning motor 504 is operated at the same time as the turning motor of the front gripping pivot is operated, and the turn shaft 505 connected to the rotation shaft of the turning motor 504 is rotated at the same time as the turning motor 504 is operated. At the same time as the turn shaft 505 rotates, a plurality of clamp cylinders 508 (508a) and 508b mounted on the turn frame 507 and the turn frame 507 arranged on the turn shaft 505 are provided. 508c, clamp blocks 509, 509a, and rear clampers 510, 511 are rotated, and the rear clampers 510, 511, i.e., rear upper clampers 510a, 511a, and rear lower clampers 510b and 511b are operated separately as the respective clamp cylinders 508, 508a, 508b and 508c installed on both sides of the upper and lower surfaces of the turn frame 507 operate.

Referring to FIG. 8 again, the synchronization deviation absorbing apparatus will be described in detail as follows.

As shown in FIG. 8, the synchronous deviation absorbing devices 503 and 503a include spring end blocks 5030 and 5030a, spring shafts 5031 and 5031a, elastic members 5032 and 5032a, and washers 5033. ) 5033a and nuts 5034 and 5034a, and the spring end blocks 5030 and 5030a are mounted to the bottom of the spring brackets 502 and 502a, and the spring shafts 5031 and 5031a. One side of the spring end block (5030, 5030a) is inserted through the central portion and the other side is hinged and fixed to the motor bracket 504a mounted on the upper portion of the turning motor 504, the spring shaft (5031) (5031a) When the turning motor 504 rotates to one side due to a synchronous deviation during rotation of the front and rear gripping parts 30 and 50, the spring is compressed to absorb the rotational deviation and at the same time by elastic force. Elastic members 5032 and 5032a are provided to return the shafts 5031 and 5031a to their original positions. Washers 5033 and 5033a are fitted to both sides of the spring shafts 5031 and 5031a so as to be positioned on both sides of the members 5032 and 5032a, but the washers 5033 located on one side are connected to the nuts 5034 and 5034a. The position is fixed. Turning motors 304 and 504 are individually employed in the front and rear gripping parts 30 and 50 to rotate the front and rear gripping parts 30 and 50 to rotate the lower frame of the vehicle. When rotating the synchronous deviation may occur, if the synchronous deviation occurs as described above, the turning motor 304, 504 may be damaged. However, in the present invention, the synchronous deviation caused by the individual adoption of the turning motors 304 and 504 as described above is absorbed by the synchronous deviation absorbing devices 503 and 503a to protect the turning motors 304 and 504. Can extend its life.

That is, when one of the front gripping rotation unit 30 and the rear gripping rotation unit 50 is operated first, and a synchronization deviation occurs, the turning motor 504 of the rear gripping rotation unit 50 rotates by the generated deviation. As the turning motor 504 rotates, the spring shafts 5031 and 5031a hinged to both sides of the turning motor 504 are moved in the rotational direction of the turning motor 504. At the same time as the shafts 5031 and 5031a are moved, the elastic members 5032 and 5032a installed in the spring shafts 5031 and 5031a are compressed to absorb the synchronous deviation, and the spring shafts 5031 and 5031a are It is returned to its original state by the elastic force of the elastic members 5032 and 5032a.

FIG. 10 is a pneumatic circuit diagram of the front and rear gripping rotation parts. As shown in FIG. 10, separate air tanks 11, 11a and boosters 12, 12a are provided for the front and rear gripping parts. By connecting, it is possible to supply a higher air pressure than the proper air pressure even when the weight of the lower frame of the vehicle is increased, so that heavy products can be lifted without additional equipment.

Referring to Figure 2 describes the operation of the vehicle lower frame rotating apparatus according to an embodiment of the present invention configured as described above is as follows.

As shown in FIG. 2, as the platform conveyor 13 operates, the vehicle lower frame 15 having completed the lower work is supported and moved to the working position by a plurality of supports 14 installed on the platform conveyor 13. do.

When the lower frame 15 of the vehicle which has completed the lower work as described above is moved to the work position by the platform conveyor 13, the rotary motor 200 of the up and down operating part 20 operates, and the rotary motor 200 In operation, the rotational force of the rotary motor 200 is transmitted to the power direction changers 202 and 202a by the universal joint 201 and 201a, and is driven by the power direction changers 202 and 202a. The rotational force of the rotary motor 200 in which the direction is changed rotates the pinion gears 203 and 203a. As the pinion gears 203 and 203a rotate as described above, the vertical moving parts 10 and 10a are lowered. That is, the one side of the vertical movement frame (102, 102a) of the vertical movement unit (10) (10a) is provided with a rack gear 103 (103a) which is operated in engagement with the pinion gear (203) (203a). As the gears 203 and 203a rotate, the vertical moving parts 10 and 10a descend.

As described above, after the up and down moving parts 10 and 10a descend to the working position via the rack gears 103 and 103a and the pinion gears 203 and 203a, the vehicle lower frame 15 The left and right conveying cylinder 405 of the left and right conveying part 40 is operated to correspond to the length of the moving part, and the moving frame 403 is conveyed to the left and right to convey the rear grabbing pivot 50 to the left and right. Move 50 to the working position along the length of the vehicle lower frame 15. At this time, the side moving plates 402 and 402a mounted on both sides of the moving frame 403 are moved left and right along the guide rails 401 and 401a of the guide plate 400.

After moving the rear gripping pivot 50 to the working position along the length of the vehicle lower frame 15 as described above, the lower turn frames 307 and 507 of the front and rear gripping pivot 30, 50 are provided. Clamp cylinders 308b, 308c, 508b, and 508c installed on both sides of the surface are operated so that the front lower clampers 310b, 311b and rear lower of the front and rear clampers 310, 311, 510, 511 are operated. The front lower clampers 310b, 311b and the rear lower clampers 510b, 511b are rotated by rotating the clampers 510b, 511b around the hinges of the clamp blocks 309, 309a, 509, and 509a. It is level with the vehicle lower frame 15.

As described above, after the front lower clampers 310b, 311b and the rear lower clampers 510b, 511b are flush with the vehicle lower frame 15, the rotary motor 200 of the upper and lower operating parts 20 is vertically up and down. Rotate in the direction opposite to the direction when the moving frame (102, 102a) is lowered so that the up and down moving frame (102, 102a) is raised and at the same time the front gripping pivot (30) and the rear gripping pivot (50) After the vehicle lower frame 15, which is supported by the plurality of supports 14, is supported by the front and rear lower clampers 310b, 311b, 510b, and 511b to be raised to a predetermined height, As the operation of the rotary motor 200 of the operation unit 20 is stopped, the vertically moving frames 102 and 102a are stopped.

After the vertical movement frames 102 and 102a are stopped as described above, the clamp cylinders 308 and 308a provided on both sides of the upper surfaces of the turn frames 307 and 507 of the front and rear gripping pivots 30 and 50 are provided. 508 and 508a operate to clamp the front upper clampers 310a, 311a and rear upper clampers 510a, 511a of the front and rear clampers 310, 311, 510, 511. 309) (309a) 509 (509a) by rotating the hinge around the vehicle lower frame 15 together with the front lower clamper (310b) 311b and the rear upper clamper (510b) (511b). do.

After clamping the vehicle lower frame 15 as described above, the rotary motor 200 of the upper and lower operation units 20 operates again to raise the upper and lower movable frames 102 and 102a to further lower the automobile lower frame 15. The front gripper 30, the rear gripper 50 and the rear gripper 50 at a distance such that the plurality of supports 14 installed on the vehicle lower frame 15 and the platform conveyor 13 do not interfere with each other during the rotation of the vehicle. Raise the lower frame 15.

After raising the vehicle lower frame 15 by a distance that does not interfere with the support 14, the rotary motor 200 of the up and down operation unit 20 is stopped and the upper moving frame 102 (102a) After the stop, the turning motors 304 and 504 of the front and rear gripping pivots 30 and 50 are operated simultaneously to rotate the vehicle lower frame 15. That is, when the turning motors 304 and 504 of the front and rear gripping pivots 30 and 50 are operated simultaneously, the turn shafts 305 and 505 connected to the rotation shafts of the turning motors 304 and 504 rotate. And the clamp cylinders 308, 308a, 308b, and 308c mounted on the turn frames 307 and 507 and the turn frames 307 and 507 built up in the turn shafts 305 and 505. (508) (508a)

508b and 508c and the front and rear clampers 310, 311, 510 and 511 are rotated to stop the vehicle lower frame 15 by 180 degrees and then stop.

After the vehicle lower frame 15 is rotated 180 degrees as described above, the rotary motor 200 of the up and down operating unit 20 is operated again to lower the up and down moving frames 10 and 10a by a predetermined distance.

After the vertical movement frames 10 and 10a are lowered by a predetermined distance, the clamp cylinders 308 provided on both sides of the upper surfaces of the turn frames 307 and 507 of the front and rear gripping pivots 30 and 50 are provided. 308a, 5608 and 508a operate to rotate the front and rear upper clampers 310a, 311a, 510a and 511a around the hinges of the clamp blocks 309, 309a, 509 and 509a. And the front and rear upper clampers 310a, 311a, 510a and 511a are in an open state while the vehicle lower frame 15 is only used as the front and rear lower clampers 310b, 311b, 510b and 511b. Supported.

When the front and rear upper clampers 310a, 311a, 510a, and 511a are opened, the rotary motor 200 of the up and down operating unit 20 is operated again to move up and down the moving frames 102 and 102a. At the same time the vehicle lower frame 15 is supported by a plurality of supports 14 mounted on top of the platform conveyor 13. That is, the front and rear upper clampers 310a, 311a, 510a, 511a are lowered in the open state and the vehicle lower frame 15 is seated on the support 14 so that the front part of the vehicle lower frame 15 when seated. To absorb the height deviation of the rear portion.

As described above, after the vehicle lower frame 15 is supported by a plurality of supports 14 installed on the platform conveyor 13, the clamp cylinders 308b installed on both sides of the lower surfaces of the turn frames 307 and 507 ( 308c) 508b and 508c are operated so that the front and rear lower clampers 310b, 311b, 510b and 511b are pivoted about the hinges of the clamp blocks 309, 309a, 509 and 509a. After opening, the rotary motor 200 of the vertical operation unit 20 is operated to raise the vertical frame 102 or 102a.

After the vertical movement frames 102 and 102a are raised, the platform conveyor 13 is operated to move the vehicle lower frame 15 to the next working position.

As described above, the vehicle lower frame rotating apparatus according to the embodiment of the present invention does not need a side lifter for lifting the vehicle lower frame transferred by the platform conveyor by allowing the front and rear gripper to freely move up and down. It is not only easy to secure the space for construction, but also greatly reduces the construction cost and construction period, and the overall structure is simple, so the cost of equipment is low and the fixed type does not move left and right. In addition to being low, the productivity can be greatly improved by allowing a significantly shorter work process.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the vehicle lower frame rotating apparatus according to the present invention may be moved left and right corresponding to the full length of the lower frame of the vehicle, the rear gripping rotation unit, and separate air tanks in the front and rear gripping rotation unit By applying the booster, there is no need to change the equipment even if the vehicle model is changed, and it is possible to raise the car frame, rotate, lower and load the slat conveyor in a single process. In addition, it is possible to raise the lower frame of the car without the need for a separate side lifter, which eliminates the need for pit construction, thus greatly simplifying the construction space and significantly reducing the construction cost and construction time. The production cost of equipment is low, It is a very useful invention to be able to lower the failure rate significantly because it is fixed.

Claims (8)

In the vehicle lower frame rotating device for rotating the vehicle lower frame to the normal position where the lower work is completed, A pair of vertical moving parts 10 and 10a installed at both sides of the fixing frame 80 fixed by the plurality of fixing supports 70 at the lower part of the installation frame 60; It is installed on the upper part of the fixed frame 80, and both ends are connected by a pair of up and down moving parts (10, 10a), rack gears (103, 103a) and pinion gears (203, 203a) and a pair of up and down Up and down operation unit 20 for moving the unit (10, 10a) up and down at the same time; A front gripping rotation unit 30 installed below the up and down moving unit 10 installed at one side of the fixed frame 80 to grip and rotate one side of the lower frame of the vehicle; A left and right transfer unit 40 installed below the up and down transfer unit installed on the other side of the fixed frame; And The lower frame of the vehicle, which is installed below the left and right conveying unit 40 and includes a rear holding pivot 50 which rotates after holding the other side of the lower frame of the vehicle while the front holding pivot 30 is operated. Rotator. The method of claim 1, The upper grip side 30 and the upper one side of the left and right conveying portion 40 is connected to the weight (93, 93a) by the chain (94, 94a) supported by a plurality of rollers (95, 95a) to operate the up and down The vehicle lower frame rotating apparatus, characterized in that the upper and lower moving parts (10, 10a) to move up, down with the least force in the part (20). The method of claim 1, The vertical movement unit (10, 10a) is a guide bracket (100, 100a) mounted on the upper portion of the fixed frame (80); Fixing bars (101, 101a) mounted on both sides of the upper and lower sides of the guide bracket (100, 100a); Inserted into the guide brackets 100 and 100a, the rack gears 103 and 103a are connected to the upper and lower operating units 20 on both sides of the guide brackets 100 and 100a. A vehicle lower frame rotating apparatus comprising a vertical movement frame (102, 102a) which is guided by and moved up and down. The method of claim 1, The up and down operation unit 20 is a rotating motor 200 installed in the center of the upper surface of the fixed frame (80); A pair of power direction converters 202 and 202a connected by the rotary motor 200 and the universal joints 201 and 201a; And And a pair of pinion gears 203 and 203a mounted on both ends of the rotation shafts of the power converters 202 and 202a and connected to the rack gears 103 and 103a of the vertical moving parts 10 and 10a. Car lower frame rotator. The method of claim 1, The front gripping pivot 30 is installed on a lower portion of the up and down moving part 10 located on one side of the fixed frame 80, and a clamp frame on which a support bracket 301 having a roller 301` is mounted on one side thereof. 300; A turning motor 304 hinged to a lower portion of one side of the clamp frame 300; A turn shaft 305 having one end connected to the rotating shaft of the turning motor 304 and supported by a plurality of bearings 306; A turn frame 307 arranged at the other end of the turn shaft 305; A plurality of clamp cylinders (308, 308a, 308b, and 308c) installed at both ends of upper and lower surfaces of the turn frame (307); A pair of clamp blocks 309 and 309a mounted at both ends on one side of the turn frame 307; A pair of front clampers 310 and 311 hinged to one end of each of the clamp blocks 309 and 309a, the center portion of which is connected to the clamp cylinders 308, 308a, 308b and 308c; The lower frame rotating apparatus for the automobile, characterized in that it comprises an annular ring 313 mounted to the front of the turn frame 307 having a guide rail 313` supported on one side by a roller 301` . The method of claim 1, The left and right transfer unit 40 includes a guide plate 400 having guide rails 401 and 401a on both side surfaces of the upper and lower moving parts 10a positioned at the other side of the fixed frame 80; A pair of side moving plates 402 and 402a mounted on the guide rails 401 and 401a and left and right conveyed along the guide rails 401 and 401a; Moving frame 403, which is located between the pair of side moving plates 402 and 402a, has both sides fixed to the side moving plates 402 and 402a, and has a support bracket 404 having a roller 404` at the front center thereof. ); One side is fixed to one side of the lower surface of the guide plate 400, the other side of the vehicle frame frame rotation apparatus characterized in that it comprises a left and right transfer cylinder (405) fixed to the central portion of one side of the moving frame (403). The method of claim 1, The rear gripping rotation unit 50 is installed on one side lower portion of the left and right transfer unit 40, the clamp frame 500 is mounted on one side tension frame 501; A pair of spring brackets 502 and 502a mounted at both ends of the lower surface of the tension frame 500; A turning motor 504 connected to each of the spring brackets 502 and 502a by a pair of synchronous deviation absorbing devices 503 and 503a; A turning shaft 505 having one side end connected to the rotating shaft of the turning motor 504 and one side supported by a plurality of bearings 506; A turn frame 507 arranged at the other end of the turn shaft 505; A plurality of clamp cylinders (508, 508a, 508b, 508c) installed at both ends of upper and lower surfaces of the turn frame (507); A pair of clamp blocks (509, 509a) mounted at both ends on one side of the turn frame (507); A pair of rear clampers (510, 511) hinged at one end to each of the clamp blocks (509, 509a), the center portion being connected to the clamp cylinders (508, 508a, 508b, 508c) and pivoted about the hinge; The lower frame rotating apparatus for the vehicle, characterized in that it comprises an annular ring 513 mounted on the front of the turn frame 507 and having a guide rail 513` supported on one side by a roller 404`. . The method of claim 7, wherein The synchronous deviation absorbing device (503, 503a) includes a spring end block (5030, 5030a) mounted to the bottom of the spring bracket (502, 502a); Spring shafts 5031 and 5031a having one side penetrated through a central portion of the spring end blocks 5030 and 5030a and the other side hinged to the turning motor 504; Elastic members installed on the spring shafts 5031 and 5031a to compress the turning motor 504 to one side due to a synchronous deviation to absorb the deviations and to return the spring shafts 5031 and 5031a to their original state by elastic force. An automobile lower frame rotating apparatus characterized by consisting of (5032,5032a).

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