CN212703862U

CN212703862U - Vehicle body front and rear end framework beam column profiling tool

Info

Publication number: CN212703862U
Application number: CN202020852877.4U
Authority: CN
Inventors: 苟一凡; 郭姜
Original assignee: Baoji Xinhuaxin Machinery Manufacturing Co ltd
Current assignee: Baoji Xinhuaxin Machinery Manufacturing Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-03-16
Anticipated expiration: 2030-05-20

Abstract

The profiling tool for the framework beam columns at the front end and the rear end of the vehicle body is provided with an upper support, a lower platform and a jack; the lower platform is horizontally parallel to the upper support at intervals up and down and is fixedly connected into a whole up and down through the rigid support of the structural support piece; the bottom of the upper support is fixedly connected with a top end fixing part of the jack; the bottom end execution end of the jack is detachably connected with the top end of the compression column; the central axis of the compression column cylinder is parallel to the lower platform, and the outer cylindrical surface of the compression column cylinder is used for punching and forming a transition arc of the prefabricated plate; the lower platform is detachably and fixedly provided with a positioning plate and an axisymmetric bottom groove assembly with adjustable notch width; the axisymmetrical vertical center line of the bottom groove component is coplanar with the symmetric center line of the upper supporting vertical shaft and the vertical center line of the jack in a vertical plane. The utility model discloses produce such as products such as roof beam, post, simple high efficiency, simple operation, mass production, appearance quality uniformity are good, the cycle is short, with low costs, economical and practical.

Description

Vehicle body front and rear end framework beam column profiling tool

Technical Field

The utility model belongs to an operation transportation does not have cutting instrument technical field for the metalworking, concretely relates to automobile body front and back end skeleton beam column die mould frock.

Background

With the rapid development of manufacturing industry, the simple functions can not meet the increasing customer requirements, so that the production process is controlled in the product manufacturing process, the appearance quality of the product is improved, the strict control of the comprehensive quality of the product can be achieved, and the customer requirements are met. Therefore, aiming at the condition that the production proportion of the current urban rail car products is enlarged, the method is very important for improving and monitoring the appearance and the comprehensive quality of the urban rail car products. However, in the compression production of the front and rear end framework columns and beams of the urban rail car body, corresponding professional molds need to be manufactured along with different car types, so that the production period is long, the production cost is high, and the practicability of the production products of the car body columns and beams is greatly reduced. In view of this, the following improvement is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the profiling tool for the framework beam columns at the front and rear ends of the vehicle body is provided, and the technical problems that the framework beam columns and the column profiling at the front and rear ends of the vehicle body are long in production period, high in cost and unsatisfactory in product appearance quality consistency in the prior art are solved; the beam and the column are easy to operate, low in cost and convenient and fast in production with high quality.

The utility model adopts the technical proposal that: the profiling tool for the framework beam columns at the front end and the rear end of the vehicle body is provided with an upper support, a lower platform and a jack for profiling; the method is characterized in that: the lower platform is horizontally arranged; an upper support is arranged above the lower platform; the upper support and the lower platform are mutually parallel up and down, and the upper support and the lower platform are fixedly connected into a whole up and down through a rigid support of a structural support piece; the bottom of the upper support is vertically and fixedly connected with a vertically arranged jack top end fixing part; the bottom end execution end of the jack is detachably connected with the top end of the compression column; the central axis of the compression column cylinder is parallel to the lower platform, and the outer cylindrical surface of the compression column cylinder is used for punching and forming a transition arc of the prefabricated plate; the positioning plate and the bottom groove assembly are detachably and fixedly arranged on the upper end surface of the lower platform below the compression leg; the bottom groove assembly is of a horizontal left-right axis symmetric groove structure, and the distance between the notches of the bottom groove assembly is adjustable; the vertical side wall of the right side of the positioning plate body is used for leaning and positioning the left end face of the prefabricated plate; the distance between the positioning plate and the bottom groove assembly is adjustable; the axial symmetry vertical center line of the bottom groove assembly is coplanar with the upper support vertical axis symmetry center line, and the vertical center line of the jack is in a vertical plane.

In the above technical solution, preferably: for the cost of manufacture that reduces the frock to guarantee the structural support intensity of frock: the upper support is made of I-shaped steel and used as a horizontal upper cross beam; the lower platform is made of H-shaped steel and used as a horizontal bottom beam; the structural support piece is a channel steel, and the upper cross beam and the bottom beam are fixedly connected into a whole up and down through a rigid support of the channel steel; an upper rib plate is further arranged at the joint of the channel steel and the upper cross beam; the upper rib plate is made of a Q235B steel plate.

In the above technical solution, preferably: for saving materials and reducing the manufacturing cost of the tool: the compression leg is made of a seamless steel tube.

In the above technical solution, further: for the reliable support connection of lower cost messenger jack top and last support bottom: the top end fixing part of the jack is fixedly connected with the upper support bottom through a sealing plate; the closing plate is made of Q235B steel plate.

In the above technical solution, further: in order to realize the disassembly and replacement of the compression leg and the jack with lower cost: the bottom end execution end of the jack is fixedly connected with the top end of the horizontally arranged pressing plate; the bottom end of the pressing plate is vertically and fixedly connected with the top end of the vertically arranged supporting plate; the supporting plate and the pressing plate form an axisymmetric T-shaped structure; the bottom end of the supporting plate is fixedly connected with a pressing column; the vertical central line of the pressing plate, the vertical central line of the supporting plate, the vertical central line of the pressing column and the vertical central line of the jack are coplanar in a vertical plane; the pressing plate and the supporting plate are made of Q235B steel plates.

In the above technical solution, further: for making the jack can be towards the balanced punching press application of force of compression leg, guarantee that the prefabricated section sheet material in location that has certain length in the horizontal direction can the bending stamping forming of uniformity of uniform atress ground: two jacks are arranged in the horizontal direction in a left-right axial symmetry mode, and the two jacks are fixedly connected with the compression columns in a left-right axial symmetry mode.

In the above technical solution, further: for with lower cost, realize that the kerve subassembly can form smooth transition circular arc when pressing post is to prefabricated section sheet material stamping forming: the bottom groove assembly comprises a pair of vertical steel plates which are symmetrical in a left-right axis mode; the vertical steel plate and the lower platform are fixedly connected into a whole in a manner of adjusting the distance between the notches; the vertical outer side wall of the vertical steel plate body is respectively provided with a plurality of rib plates; the top end of the vertical steel plate body is provided with a horizontal supporting surface; the horizontal supporting height of the horizontal supporting surface is lower than the plate body height of the positioning plate; the inner side ends of the horizontal supporting surfaces are respectively provided with an axisymmetric slope surface which inclines inwards and downwards.

Compared with the prior art, the utility model have following advantage:

1. the utility model can ensure the smooth transition of the circular arc of the compression part, the excellent consistency of the appearance quality, and the convenient and efficient compression production; and lays a foundation for reducing the manufacturing difficulty of the subsequent process;

2. the utility model has short production period, simple and convenient operation, obviously reduced production cost, economy and practicality;

3. the utility model discloses a change the size width of pushing down, adjusting the locating plate and the kerve of different models and realize the quick die mould production of different model roof beams, post, can be used to make the die mould piece that various specifications required, the commonality is good, but the repeated operation satisfies the production demand of product batch, high efficiency, high-quality.

4. The utility model discloses product such as roof beam, post such as production has simple high efficiency, simple operation, mass production, appearance quality uniformity good, the cycle is short, with low costs, economical and practical's comprehensive advantage.

Drawings

Fig. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a left side view of the prefabricated panel of FIG. 1 before pressing;

FIG. 3 is a left side view of the prefabricated panel of FIG. 1 after press forming;

fig. 4 is an enlarged detail structure schematic diagram of the forming principle of the bottom tank assembly of the present invention.

Detailed Description

Specific embodiments of the present invention will be described below with reference to fig. 1 to 4. It is to be understood that the following description of the embodiments is merely exemplary and not intended to limit the invention in any way.

The following examples are provided to facilitate a better understanding of the present invention, but are not intended to limit the present invention. The jack press type molding methods in the following examples are all conventional methods unless otherwise specified. The steel members and materials used in the following examples are commercially available unless otherwise specified. The implementation of the control circuit of the hydraulic system of the jack in the following embodiments is a conventional control mode unless otherwise specified.

In the present invention, without the contrary explanation, it is understood that: the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of describing the present invention, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as being directly connected or indirectly connected through other intermediate members; the connecting structure can also be a detachable connection which is firmly connected into a whole through a fastener, and can also be a non-detachable fixed connection such as welding. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The method aims to solve the technical problems that in the prior art, the production cycle of framework beams and column compression type at the front end and the rear end of a vehicle body is long, the cost is high, and the consistency of the appearance quality of a product is not ideal.

The profiling tool for the framework beam columns at the front and rear ends of the vehicle body is provided with an upper support, a lower platform and a jack 3 for profiling; the structure that adopts jack stamping forming preparation die mould product with prior art is different: the lower platform of the utility model is horizontally arranged; (see fig. 1), the lower platform has a certain extension in the horizontal length direction to support the horizontal support of the prefabricated slab 13. In addition, an upper support (as shown in figure 1) is arranged above the lower platform; the upper support and the lower platform are mutually parallel up and down, and the upper support and the lower platform are rigidly supported by the structural support piece and are fixedly connected into a whole up and down.

In the above embodiment, preferably: the upper support is made of I-shaped steel and used as a horizontal upper cross beam 1; the lower platform is made of H-shaped steel and used as a horizontal bottom beam 8; the structural support piece is a channel steel 7, and the upper cross beam 1 and the bottom beam 8 are fixedly connected into a whole up and down through a rigid support of the channel steel 7; the upper rib plate 2 such as a triangular structure is preferably welded and installed at the joint of the channel steel 7 and the upper cross beam 1; the upper rib plate 2 is used for increasing the structural support strength of the steel structure. Preferably: the upper rib plate 2 is made of a Q235B steel plate. The steel plate Q235B has the advantages of low cost, firm and reliable structural support, easily obtained materials, easy manufacture and stable structural support.

On the basis of the structure, the bottom of the upper support is vertically and fixedly connected with the vertically arranged top end fixing part of the jack 3. Further: in order to ensure that the top end of the jack 3 is reliably supported and connected with the upper support, namely the bottom of the upper crossbeam 1, with lower cost: the top end fixing part of the jack 3 is fixedly connected with the upper supporting bottom, namely the upper crossbeam 1, through a sealing plate 12; the closure plate 12 is made from a Q235B steel plate. Specifically, the closing plate 12 adopts a flange type connection mode to reliably and firmly fixedly connect the jack 3 and the upper cross beam 1 into a whole.

On the basis of the structure, the bottom end execution end of the jack 3 is detachably connected with the top end of the compression column 6; the central axis of the column 6 of the compression leg is parallel to the lower platform, and the outer cylindrical surface of the column 6 of the compression leg is used for punching and forming a transition circular arc of the prefabricated plate material 13 (as shown in fig. 3).

On the basis of the above embodiment, it is preferable that: the compression leg 6 is made of a seamless steel pipe. And the seamless steel pipe is formed by pressing, so that the material is saved, and the manufacturing cost of the tool is reduced. In addition, the transition circular arc of the prefabricated plate 13 is formed by punching in a mode that the outer cylindrical surface of the column body of the compression column 6 is as shown in figures 1 and 3.

On the basis of the structure, the positioning plate 11 and the bottom groove assembly 10 are detachably and fixedly arranged on the upper end surface of the lower platform below the compression leg 6. It should be noted that: the positioning plate 11 and the lower platform are in the direction shown in fig. 2 and 3, and the positioning plate 11 can be detachably connected with the lower platform 2 into a whole in a left-right sliding displacement mode. Specifically, a strip-shaped groove extending in the left-right direction can be formed on the lower platform table top in the direction shown in fig. 2 and 3; thereby adjust the interval of locating plate 11 distance kerve subassembly 10 of L type structure to satisfy the bending die mould shaping production of the prefabricated section sheet material 13 of different specification models.

On the basis of the structure, the bottom groove assembly 10 is of a horizontal left-right axis symmetric groove type structure (as shown in fig. 2 and 3), and the distance between the notches of the bottom groove assembly 10 is adjustable. Specifically, the realization principle that the distance between the notches of the bottom groove assembly 10 is adjustable is the same as the principle that the positioning plate 11 can be adjusted in position, namely, strip-shaped grooves which horizontally extend from left to right in the directions shown in fig. 2 and 3 are formed in the lower platform; therefore, the distance between the notches formed by the two bottom groove assemblies 10 which are symmetrical with each other in the left-right direction is adjusted, and the bending and profiling production of prefabricated plate materials 13 of different specifications and models is met.

On the basis of the structure, (see fig. 2) the right vertical side wall of the plate body of the positioning plate 11 is used for positioning the left end face of the prefabricated plate material 13; so as to lock the distance between the bending forming area of the prefabricated plate material 13 and the right vertical end surface of the positioning plate 11, thereby locking the position of the bending forming surface of the prefabricated plate material 13. I.e. the distance of the positioning plate 11 from the bottom slot assembly 10 is adjustable.

On the basis of the structure, in order to ensure the forming consistency (as shown in figures 2 and 3): the axisymmetric vertical center line of the bottom slot assembly 10 is coplanar with the upper support vertical axis, and the vertical center line of the jack 3 in a vertical plane.

On the basis of the above embodiment, further: the bottom trough assembly 10 (shown in fig. 3) includes a pair of vertical steel plates 101 that are axisymmetrical left and right; namely, the vertical steel plate 101 and the lower platform are detachably and fixedly connected into a whole, and the distance between the notches of the vertical steel plate 101 is adjustable. Specifically, the method comprises the following steps: for the realization of the detachable connection of adjustable notch spacing between the bottom groove assembly 10 and the lower platform: vertical steel sheet 101 is L type structure to a plurality of through-holes that the horizontal bottom plate system of through L type was made, use fastening assembly to link vertical steel sheet 101 and lower platform fastening as an organic whole, and lower platform system has the bar hole that is used for adjusting notch interval about vertical steel sheet 101.

In addition, the vertical outer side wall of the vertical steel plate 101 is fixedly connected with a plurality of rib plates 9 in a welding mode. Specifically, the method comprises the following steps: (as shown in fig. 1 and 2), the rib plates 9 are of a right-angle trapezoidal structure, and a plurality of rib plates 9 are fixedly welded and installed at equal intervals along the horizontal direction of the vertical outer side wall of the vertical steel plate 101.

On the basis of the above embodiment, the top end of the vertical steel plate 101 is provided with a horizontal supporting surface 102; the horizontal supporting height of the horizontal supporting surface 102 is lower than the plate body height of the positioning plate 11 (fig. 4); the inner ends of the horizontal supporting surfaces 102 are respectively provided with an axisymmetric slope surface 103 which inclines inwards and downwards. By adopting the structure and the type of the material, the smooth transition arc can be formed when the bottom groove component 10 is formed by the pressing column 6 to punch the prefabricated panel material 13 at lower cost, no scratch is generated, and the appearance quality is excellent.

Therefore, the tool profiling production method for the rail car body beam and the rail car body column has the advantages of being simple in operation, low in cost, high in quality and convenient to produce.

On the basis of the above embodiment, further: for solving the technical problem that the jack 3 is disassembled and replaced by the compression columns 6 with different diameters: the actuating end at the bottom end of the jack 3 can be detachably and fixedly connected with the top end of a horizontally arranged pressing plate 4 in a flange type connection mode; the bottom end of the pressure plate 4 is vertically welded and fixedly connected with the top end of a vertically arranged support plate 5; the pressing plate 4 and the supporting plate 5 form an axisymmetric T-shaped structure; and the bottom end of the supporting plate 5 is fixedly connected with a pressing column 6 in a welding way. In order to ensure the forming consistency of the product: the vertical central line of the pressure plate 4, the vertical central line of the support plate 5 and the vertical central line of the compression leg 6 are coplanar with the vertical central line of the jack 3 in a vertical plane.

Preferably: for reduce cost and guarantee frock die mould reliability: the pressing plate 4 and the supporting plate 5 are both made of Q235B steel plates. Namely, the dismounting and replacement of the compression columns 6 and jacks of different models can be realized at lower cost.

On the basis of the above embodiment, further: in order to enable the jack 3 to uniformly punch and apply force to the pressure column 6, the positioning prefabricated plate 13 with a certain length in the horizontal direction can be uniformly stressed to be bent and punched in a consistent manner: two jacks 3 are arranged in the horizontal direction in a left-right axial symmetry mode, the two jacks 3 are fixedly connected with the compression columns 6 in a left-right axial symmetry mode, and the two jacks are identical in structural model and act synchronously.

The utility model discloses a theory of operation:

firstly, selecting a compression leg 6 with a proper size and diameter according to the specification of a product; and the position of the positioning plate 11, particularly the size width of the notch of the bottom groove assembly 10 is adjusted according to the product specification.

Secondly, the left end of the prefabricated section plate 13 of the product to be pressed, as shown in fig. 2, is abutted against the vertical right side wall of the positioning plate 11, and the prefabricated section plate 13 of the product to be pressed is horizontally erected and horizontally placed on the bottom groove assembly 10 which is axially symmetrical left and right.

Then, the two jacks 3 are simultaneously pressed down at a constant speed to move until the pressing column is not clamped at the notch, so that the product is punched and formed, and the appearance quality of the formed product meets the requirement.

Based on this, when the follow-up products of the same model are manufactured by pressing, the batch, high-efficiency, continuous and convenient production of the products of the same specification can be realized only by repeating the pressing operation of the jack. The produced product has excellent appearance quality consistency and meets the requirements of customers; by adopting the manufacturing method, the production cost of the product is effectively reduced, the production period is shortened, and the production efficiency is improved.

The technological parameter requirements are as follows: an upper cross beam: selecting a 160 multiplied by 88 multiplied by 6mm I-steel with the horizontal length L of 1690 mm; and (4) loading a rib plate: selecting a Q235B steel plate with the thickness of 10 mm; 5 tons of jacks are selected as the jacks; closing the plate: selecting a Q235B steel plate with the thickness of 10 mm; pressing a plate: selecting a Q235B steel plate with the thickness of 20 mm; a bottom beam: selecting H-shaped steel with the length L being 1690 mm; positioning a plate: selecting a Q235B steel plate; a bottom groove: selecting a Q235B steel plate with the thickness of 10 mm; rib plates: selecting a Q235B steel plate with the thickness of 10 mm; column pressing: selecting a seamless steel pipe with the diameter of 98mm and the length L of 1690 mm; a support plate: selecting a Q235B steel plate with the thickness of 20 mm; channel steel: A280X 86X 11.5mm channel steel is selected. Among them, the Q235B steel sheet is a low carbon steel. The national standard GB/T700-2006 carbon structural Steel is well-defined. The Q235B is one of the most common domestic steel, has low price and can be competent for most products with low performance requirements.

From the above description it can be found that: firstly, the utility model can ensure the smooth transition of the circular arc of the compression part, the excellent consistency of the appearance quality, and the convenient and efficient compression production; and lays a foundation for reducing the manufacturing difficulty of the subsequent process. Furthermore, the utility model discloses production cycle is short, and easy operation is convenient, and manufacturing cost is showing and is reducing, economical and practical. Secondly, the utility model discloses a change the size width who pushes down, adjusts locating plate and kerve of different models and realize the quick die mould production of different model roof beams, post, can be used to make the die mould piece that various specifications required, the commonality is good, but the repeated operation satisfies the production demand of product batch, high efficiency, high-quality.

Compared with the prior art: the utility model designs a profiling tool which can be used for smooth and rapid profiling production of circular arc transition of a rail car beam and a column; through changing the compression leg model, adjusting the notch size of the bottom groove assembly and adjusting the position of the positioning plate, batch continuous high-efficiency high-quality production of the car body beams and the columns of the rail cars with different specifications and models is completed, the production efficiency is improved, and the production cost is reduced.

To sum up, the utility model discloses produce such as products such as roof beam, post, have simple high efficiency, simple operation, mass production, appearance quality uniformity is good, the cycle is short, with low costs, economical and practical's comprehensive advantage.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The profiling tool for the framework beam columns at the front end and the rear end of the vehicle body is provided with an upper support, a lower platform and a jack (3) for profiling; the method is characterized in that: the lower platform is horizontally arranged; an upper support is arranged above the lower platform; the upper support and the lower platform are mutually parallel up and down, and the upper support and the lower platform are fixedly connected into a whole up and down through a rigid support of a structural support piece; the bottom of the upper support is vertically and fixedly connected with a top end fixing part of a vertically arranged jack (3); the bottom end execution end of the jack (3) is detachably connected with the top end of the compression column (6); the central axis of the column body of the compression column (6) is parallel to the lower platform, and the outer cylindrical surface of the column body of the compression column (6) is used for punching and forming a transition arc of the prefabricated plate material (13); the upper end surface of the lower platform below the compression leg (6) is detachably and fixedly provided with a positioning plate (11) and a bottom groove assembly (10); the bottom groove assembly (10) is of a horizontal left-right axis symmetric groove structure, and the distance between the notches of the bottom groove assembly (10) is adjustable; the vertical side wall of the right side of the plate body of the positioning plate (11) is used for leaning and positioning the left end face of the prefabricated plate material (13); the distance between the positioning plate (11) and the bottom groove assembly (10) is adjustable; the axisymmetric vertical center line of the bottom groove component (10) is coplanar with the upper supporting vertical axis symmetry center line, and the vertical center line of the jack (3) is in a vertical plane.

2. The profiling tool for the front and rear ends of the frame beams and the columns of the vehicle body according to claim 1, and is characterized in that: the upper support is made of I-shaped steel and used as a horizontal upper cross beam (1); the lower platform is made of H-shaped steel and used as a horizontal bottom beam (8); the structural support piece is a channel steel (7), and the upper cross beam (1) and the bottom beam (8) are fixedly connected into a whole up and down through rigid support of the channel steel (7); an upper rib plate (2) is further arranged at the joint of the channel steel (7) and the upper cross beam (1); the upper rib plate (2) is made of a Q235B steel plate.

3. The profiling tool for the front and rear ends of the frame beams and the columns of the vehicle body according to claim 1, and is characterized in that: the compression leg (6) is made of a seamless steel tube.

4. The profiling tool for the front and rear ends of the frame beams and the columns of the vehicle body according to claim 1, and is characterized in that: the top end fixing part of the jack (3) is fixedly connected with the upper supporting bottom through a sealing plate (12); the closing plate (12) is made of Q235B steel plate.

5. The profiling tool for the front and rear ends of the frame beams and the columns of the vehicle body according to claim 1, and is characterized in that: the bottom end execution end of the jack (3) is fixedly connected with the top end of a horizontally arranged pressing plate (4); the bottom end of the pressing plate (4) is vertically and fixedly connected with the top end of a vertically arranged supporting plate (5); the pressing plate (4) and the supporting plate (5) form an axisymmetric T-shaped structure; the bottom end of the supporting plate (5) is fixedly connected with a compression column (6); the vertical central line of the pressing plate (4), the vertical central line of the supporting plate (5), the vertical central line of the pressing column (6) and the vertical central line of the jack (3) are coplanar in a vertical plane; the pressing plate (4) and the supporting plate (5) are both made of Q235B steel plates.

6. The profiling tool for the front and rear ends of the frame beams and the columns of the vehicle body according to claim 1, and is characterized in that: two jacks (3) are arranged in the horizontal direction in a left-right axial symmetry manner, and the two jacks (3) are fixedly connected with the compression columns (6) in a left-right axial symmetry manner.

7. The profiling tool for the front and rear ends of the frame beams and the columns of the vehicle body according to claim 1, and is characterized in that: the bottom groove assembly (10) comprises a pair of vertical steel plates (101) which are axisymmetric left and right; the vertical steel plate (101) is fixedly connected with the lower platform into a whole in a manner of adjusting the distance between the notches; the vertical outer side wall of the plate body of the vertical steel plate (101) is respectively provided with a plurality of rib plates (9); the top end of the vertical steel plate (101) is provided with a horizontal supporting surface (102); the horizontal supporting height of the horizontal supporting surface (102) is lower than the plate body height of the positioning plate (11); and the inner side ends of the horizontal supporting surfaces (102) are respectively provided with an axisymmetric slope surface (103) which inclines inwards and downwards.