CN213409896U

CN213409896U - Stretching device for repairing automobile body

Info

Publication number: CN213409896U
Application number: CN202022415154.0U
Authority: CN
Inventors: 王贵赓
Original assignee: Mit Automobile Service Co ltd
Current assignee: Mit Automobile Service Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-06-11
Anticipated expiration: 2030-10-27

Abstract

The utility model relates to the technical field of automobile metal plates, in particular to a stretching device for repairing an automobile body, which comprises a slide way assembly, a sliding base and a stretching mechanism, wherein the slide way assembly is provided with two beams which are symmetrical and parallel to each other, and the two ends of the two beams are fixedly connected into a whole through an isolation column; the sliding base is nested on the slideway component to slide and limit the position; the stretching mechanism is provided with a screw rod capable of moving vertically, and the screw rod is sequentially provided with a hand wheel, a screw rod sleeve, a guide plate and a drag hook from top to bottom; the screw sleeve is fixed at the upper end of the sliding base through the combination of the fixed seat and the guide plate, the screw sleeve can rotate in the fixed seat, and the upper end of the screw sleeve is fixedly connected with the hand wheel; the screw rod penetrates through the sliding base and is in threaded fit with the screw rod sleeve; the draw hook is fixed at the lower end of the screw rod sleeve; can solve tensile auto-lock with this and prevent the problem of resilience, can provide sufficient tensile force simultaneously, use manpower sparingly, can also the horizontal migration adjusting position on the whole, improve work efficiency.

Description

Stretching device for repairing automobile body

Technical Field

The utility model relates to an automobile metal plate technical field, in particular to be used for prosthetic stretching device of automobile body.

Background

At present, with the development of automobile technology, the material and structure of automobile body structures, especially car bodies, are also changed, and the application of load-bearing type automobile bodies is more and more extensive. This places greater demands on the repair work of the vehicle body. After the body is repaired, not only the appearance is restored, but more importantly, the whole body is restored to the state before damage by the greatest effort, so as to ensure that the repaired automobile does not have secondary accidents caused by the body repair, and all the steps are realized by applying advanced equipment and performing standard operation. At present, when a car repair factory repairs the large-area car body depression of an accident car, a car body repairing stretching assembly is needed. The working principle of the conventional stretching assembly is that a quadrilateral hinge link mechanism is utilized, two side force arms of the opened mechanism are folded by two hands, and a stretching rod in the middle position is pulled up by means of force transmission of the hinge link mechanism, so that the stretching repair of a sunken automobile body is realized.

One disadvantage of the existing stretching assembly is that the stretching displacement is determined by the size of the hinge linkage, if a larger stretching displacement is required, the size of the required hinge linkage is larger, or the set screw of the stretching rod needs to be adjusted, the larger stretching displacement is completed by dividing into a plurality of steps, the material cost of the assembly is high, and the working efficiency during operation is low; another shortcoming of current tensile subassembly is, hinge link mechanism can't realize the auto-lock, when carrying out automobile body prosthetic tensile operation, tensile process needs the manual work to keep, prevents that tensile automobile body from kick-backing, and to the automobile body of high strength or the automobile body of collision deformation back stress concentration department, the tensile strength that needs when automobile body is restoreed is great, extravagant manpower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect and not enough that exist among the prior art, for this reason the utility model provides a be used for prosthetic stretching device of automobile body can realize the auto-lock, saves the manual work and maintains tensile process, uses manpower sparingly.

In order to achieve the above object, the utility model provides a be used for prosthetic stretching device of automobile body, it includes:

the slideway component is provided with two beams which are symmetrical and parallel to each other, and the two ends of the two beams are fixedly connected into a whole through an isolation column;

a slide base nested on the skid assembly, configured to be slidable on the skid assembly and defining a position; and

the stretching mechanism is provided with a screw rod capable of moving vertically, and the screw rod is sequentially provided with a hand wheel, a screw rod sleeve, a guide plate and a drag hook from top to bottom; the screw sleeve is fixed at the upper end of the sliding base through a fixing seat and the guide plate in a combined mode, the screw sleeve can rotate in the fixing seat, and the upper end of the screw sleeve is fixedly connected with the hand wheel; the screw penetrates through the sliding base and is in threaded fit with the screw sleeve; the draw hook is fixed at the lower end of the screw rod sleeve; the guide plate is configured to not rotate the screw and to maintain the screw in a vertical moving direction.

Furthermore, two guiding through grooves are formed in the sliding base, and the size and the shape of each guiding through groove are matched with the external size and the shape of the cross beam and correspond to the external size and the shape of the cross beam.

Further, a side surface of the slide base is provided with a hand-screwed bolt configured to fasten the slide base to the cross member.

Further, the sliding base is made of an aluminum alloy material.

Further, a thrust bearing and a bearing limiting plate are sequentially arranged between the screw rod sleeve and the guide plate.

Furthermore, the draw hook with the screw rod passes through the draw hook fixing base and is connected.

Further, a star-shaped handle is arranged at the upper end of the screw rod.

Furthermore, a guide boss is arranged in a central hole of the guide plate; the screw rod is also provided with a guide groove, and the guide groove is matched with the guide boss and is in clearance fit with the guide boss.

Compared with the prior art, the beneficial effects of the utility model are that: (1) the structure is compact and the size is small, but the tensile displacement which can be provided is large; the processing amount of parts is small, and the raw material cost and the processing cost are low. (2) The device is provided with the thrust bearing, and can easily provide a drawing force of more than 500Kg by means of the acting force among the hand wheel, the screw rod and the screw rod sleeve, so that the labor is saved, and the working efficiency is improved. (3) The working principle of the automobile body repairing device is that a screw rod nut mechanism is used, the automobile body repairing device has a self-locking function, in the process of stretching operation, rebound of the stretched automobile body is forbidden, repairing work of the automobile body is facilitated, working efficiency is improved, and the automobile body repairing device is particularly suitable for repairing large-area automobile body depressions of accident automobiles.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a partial exploded view of the stretching mechanism of the present invention.

Wherein: the device comprises a slideway component 1, a sliding base 2, a stretching mechanism 3, a beam 11, an isolation column 12, a guide through groove 21, a hand-screwed bolt 22, a screw 31, a hand wheel 32, a screw sleeve 33, a guide plate 34, a draw hook 35, a fixed seat 36, a thrust bearing 37, a bearing limiting plate 38, a draw hook fixed seat 39, a guide groove 311, a star-shaped handle 312 and a guide boss 341.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a stretching device for repairing an automobile body, which includes a slideway assembly 1, a sliding base 2 and a stretching mechanism 3, wherein the slideway assembly 1 is provided with two beams 11 that are symmetrical and parallel to each other, and two ends of the two beams 11 are fixedly connected into a whole through an isolation column 12; a sliding base 2 nested on the slide assembly 1, configured to be slidable on the slide assembly 1 and defining a position; the stretching mechanism 3 is provided with a screw rod 31 capable of moving vertically, and the screw rod 31 is sequentially provided with a hand wheel 32, a screw rod sleeve 33, a guide plate 34 and a draw hook 35 from top to bottom; the screw sleeve 33 is fixed on the upper end of the sliding base 2 through the combination of the fixed seat 36 and the guide plate 34, the screw sleeve 33 can rotate in the fixed seat 36, the upper end of the screw sleeve 33 is fixedly connected with the hand wheel 32, the fixed connection mode of the screw sleeve 33 and the hand wheel 32 can adopt key connection, and the upper end of the screw sleeve 33 is limited on the hand wheel 32 by a retaining ring for adding a shaft; the screw 31 passes through the sliding base 2 and is in threaded fit with the screw sleeve 33; the draw hook 35 is fixed at the lower end of the screw rod sleeve 33; the guide plate 34 is configured to make the screw 31 not rotate and to keep the screw 31 in a vertical moving direction.

Preferably, two guiding through grooves 21 are arranged in the sliding base 2, and the size and shape of the guiding through grooves 21 are matched with the external size and shape of the cross beam 11 and correspond to the position of the cross beam, so that the sliding base 2 can be ensured to slide on the cross beam 11.

Preferably, the slide base 2 is provided with hand-screwed bolts 22 at its side, and the hand-screwed bolts 22 fasten the slide base 2 to any position of the cross member 11.

Preferably, the slide base 2 is made of aluminum alloy, and aluminum alloy sections can also be used.

Preferably, a thrust bearing 37 and a bearing limit plate 38 are further sequentially arranged between the screw sleeve 33 and the guide plate 34, wherein the screw sleeve 31 is arranged above the thrust bearing 37, the fixed seat 36 is sleeved on the screw sleeve 31, and a screw is sequentially passed through aligned holes at two sides of the fixed seat 36, the bearing limit plate 38 and the guide plate 34 and fastened on the sliding base 2; after fastening, since the screw housing 33 can rotate freely in the fixing seat 36, the screw housing 33 can rotate easily even if a pressure of more than 500Kg is applied to the screw housing 33 by the thrust bearing 37.

Preferably, the draw hook 35 is connected with the screw 31 through a draw hook fixing seat 39.

Preferably, the upper end of the screw 31 is provided with a star-shaped handle 312 for the operation of the worker.

Preferably, a guide boss 341 is provided in a central hole of the guide plate 34; the screw 31 is also provided with a guide groove 311, and the guide groove 311 is matched with the guide boss 341 and is in clearance fit with the guide boss 341, so that the screw 31 can only slide up and down along the side surface of the guide boss 341 without rotating; the guide plate 34 and the bearing limit plate 38 can both use flat plates as raw materials, and are produced by adopting a laser cutting mode, so that machining of the guide boss 341 and a groove for mounting the thrust bearing 10 is reduced, raw materials are saved, and production efficiency is improved.

It should be noted that the screw 31 penetrates each of the other parts of the stretching mechanism 3 except the hook 35 and the star-shaped handle 312. More specifically, the utility model discloses an installation and use are: when the automobile body repairing support is in work, two ends of the cross beam 11 are used as fulcrums, and the two sides of the automobile body recess needing to be repaired are supported by external supporting legs; the sliding base 2 drives the stretching mechanism 3 to slide to a point needing stretching, and a hand-screwed bolt 22 is screwed down; the hand wheel 32 drives the screw sleeve 33 to rotate on the screw rod 31, the screw sleeve 33 and the screw rod 31 are in threaded fit to have a self-locking function, the position of the screw rod 31 is well adjusted, the draw hook 35 is used for drawing a stress point of a vehicle body recess, the hand wheel 32 is rotated, the hand wheel 32 drives the screw sleeve 33 to rotate in the fixed seat 36, the screw rod 31 is drawn in the vertical direction through the acting force between the screw rod 31 and the screw sleeve 33, and the drawing function of the recessed vehicle body is achieved.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. Therefore, the above-described embodiments of the present invention should be considered only as illustrative and not restrictive in any way, the scope of the present invention being indicated by the claims, and any changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A stretching assembly for repairing a vehicle body, comprising:

the slideway component (1) is provided with two beams (11) which are symmetrical and parallel to each other, and two ends of the two beams (11) are fixedly connected into a whole through an isolation column (12);

a sliding base (2) nested on the skid assembly (1) and configured to be slidable on the skid assembly (1) and defining a position; and

the stretching mechanism (3) is provided with a screw rod (31) capable of moving vertically, and the screw rod (31) is sequentially provided with a hand wheel (32), a screw rod sleeve (33), a guide plate (34) and a draw hook (35) from top to bottom; the screw sleeve (33) is combined and fixed at the upper end of the sliding base (2) through a fixing seat (36) and the guide plate (34), the screw sleeve (33) can rotate in the fixing seat (36), and the upper end of the screw sleeve (33) is fixedly connected with the hand wheel (32); the screw rod (31) penetrates through the sliding base (2) and is in threaded fit with the screw rod sleeve (33); the draw hook (35) is fixed at the lower end of the screw rod sleeve (33); the guide plate (34) is configured to not rotate the screw (31) and to maintain the screw (31) in a vertical moving direction.

2. Stretching apparatus for the repair of motor vehicle bodies according to claim 1, wherein two guiding channels (21) are provided in said sliding base (2), said guiding channels (21) having a dimensional shape matching and corresponding in position to the external dimensional shape of said cross-member (11).

3. Stretching apparatus for motor vehicle body repair according to claim 1, wherein the sliding base (2) is provided at its lateral surface with hand-screwed bolts (22), said hand-screwed bolts (22) being configured to fasten the sliding base (2) on the cross-beam (11).

4. The stretching device for repairing automotive bodies as claimed in any one of claims 1 to 3, characterized in that said sliding base (2) is made of aluminum alloy.

5. The stretching device for automobile body repair according to claim 1, wherein a thrust bearing (37) and a bearing limit plate (38) are further provided between the screw sleeve (33) and the guide plate (34) in sequence.

6. The stretching device for automobile body repair according to claim 1, wherein the draw hook (35) is connected with the screw rod (31) through a draw hook fixing seat (39).

7. The stretching device for automobile body repair according to claim 1, wherein a star handle (312) is provided at an upper end of the screw (31).

8. The stretching device for automobile body repair according to claim 1, wherein a guide boss (341) is provided in a central hole of the guide plate (34); the screw rod (31) is further provided with a guide groove (311), and the guide groove (311) is matched with the guide boss (341) in a clearance fit mode.