CN111451967A

CN111451967A - Technological equipment and method for manufacturing end wall of low-floor vehicle

Info

Publication number: CN111451967A
Application number: CN202010378305.1A
Authority: CN
Inventors: 孙月凤; 胡军; 刘政; 薛明洋; 史华妮; 张京伟; 南海龙; 杨红玉; 王新蕊
Original assignee: Beijing Subway Rolling Stock Equipment Co ltd
Current assignee: Beijing Subway Rolling Stock Equipment Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-07-28
Anticipated expiration: 2040-05-07
Also published as: CN111451967B

Abstract

The invention discloses a process device and a method for manufacturing an end wall of a low-floor vehicle, which are used for manufacturing the end wall with a large radian of the low-floor vehicle and mainly comprise the following steps: the clamping fixture comprises a clamping fixture, a positioning device and a pressing device; the tire surface of the tire is flat and provided with a plurality of sliding grooves, the positioning device can be fixed on the sliding grooves of the tire surface through a fastening piece, and the pressing device is arranged on the tire surface; the invention can quickly and accurately position the processed large-radian end wall and the end corner post through the plurality of groups of positioning devices, and the end wall plate is pressed in a distributed multi-point manner through the plurality of groups of pressing devices, thereby ensuring the planeness and obtaining good processing quality.

Description

Technological equipment and method for manufacturing end wall of low-floor vehicle

Technical Field

The invention relates to the field of vehicle equipment manufacturing, in particular to process equipment and a method for manufacturing a headwall of a low-floor vehicle.

Background

Along with urban rail construction's development, demand to rail transit vehicle increases with each day, for the convenience passenger gets on or off the bus and the trip demand, impels low-floor tram development vigorously at present stage, and partial vehicle structure has adopted a large amount of pitch arcs design at present, and connects and adopt articulated form. However, this has brought higher requirement to the manufacturing of headwall steel construction, and wherein the both sides outer arc of headwall steel construction will laminate with the automobile body side wall profile, and the radian is great difficult to guarantee to the flatness of headwall planking and articulated mounting size that will guarantee. Use traditional platform formula, can't guarantee the radian of headwall appearance, can't guarantee side wall flatness and articulated installation requirement simultaneously.

Chinese patent CN105466705A discloses an end wall fixing device for rail vehicle end relation test, specifically a universal aluminum profile vehicle end fixing device. The device comprises a cast iron T-shaped groove base platform, a vehicle end supporting reaction frame assembly body, a flexible universal variable supporting end wall assembly body and a flexible vehicle end edge assembly body; the vehicle-end supporting counterforce frame assembly body is fixed on the cast iron T-shaped groove base platform; the flexible variable support end wall assembly body is fixedly connected with the vehicle end support reaction frame assembly body through a three-dimensional force sensor assembly body; the flexible universal variable support end wall assembly body and the flexible vehicle end edge assembly body are fixedly connected through the vehicle end wall connecting arm support structure assembly body. Above-mentioned technical scheme better solution the fixed problem of headwall, but its structure is complicated, only limits to the experiment and uses, and does not solve the problem of headwall board processing plane degree.

To sum up, need a headwall steel construction processing with fixed, positioner, can realize that big radian end corner post fixes a position and fixes fast, can also guarantee that processing rear end wallboard has good plane degree.

Disclosure of Invention

In view of the above, the present invention provides a process equipment for manufacturing a headwall of a low floor vehicle, which can solve the above problems.

For this purpose, the present invention is implemented by the following technical means.

A process kit for manufacturing a headwall for a low floor vehicle, comprising: the clamping fixture comprises a clamping fixture, a positioning device and a pressing device;

the mould is of an inverted U-shaped plate structure, the tread of the mould is flat, and a plurality of sliding grooves are distributed on the mould, wherein the sliding grooves on the upper part of the tread are longitudinally distributed, and the sliding grooves on the lower part of the tread are transversely distributed;

the positioning device is of a pressing plate structure, at least one end of the positioning device is provided with a U-shaped groove, and the positioning device is locked with the sliding groove through a fastening piece and is fixed in position;

the pressing device is arranged on the tire tread and comprises a first pressing device, and the first pressing device is a bilateral pressing mechanism.

Further, a positioning groove is formed in the upper portion of the tread.

Further, the chute is a T-shaped chute.

Further, the positioning device is exposed out of the tire tread, and one side of the positioning device, which is in contact with the workpiece, is processed into an arc surface.

Further, at least one bottom plate is installed on the tire surface, a plurality of U-shaped grooves are formed in at least one end of the bottom plate, the bottom plate is locked with the sliding groove through a fastening piece and is fixed in position, and at least one pressing device is installed on each bottom plate.

According to the above embodiment, further, the pressing devices comprise first pressing devices, which are arranged in two groups, symmetrically distributed along the middle line of the mold in the upper region of the tread.

Still further, the first pressing device includes: the first fixed upright post and the bilateral pressure arm; the first fixed upright post is fixed on the mould; the bilateral pressure arm is horizontal, is provided with a through hole near the center, is sleeved on the first fixed upright post and can rotate or move up and down; and two ends of the two lateral pressure arms are bent downwards and provided with pressure plates, and the pressure plates are parallel to the tire surface.

According to the embodiment, the pressing device comprises a second pressing device, a plurality of second pressing devices are arranged in parallel to form a group, and the plurality of groups of pressing devices are sequentially distributed along the inner side of the U-shaped structure of the clamping fixture.

Still further, the second pressing means includes: the device comprises a second fixed upright post, a rotating upright post, a first fixed block, a cross rod, a second fixed block, a movable upright post and a pressing block;

the rotary upright column is installed on the second fixed upright column and can rotate relative to the second fixed upright column, the upper end of the rotary upright column is provided with the first fixed block, the horizontal direction of the cross rod penetrates through the first fixed block, the tail end of the cross rod is provided with the second fixed block, and the vertical direction of the movable upright column penetrates through the second fixed block and the pressing block is installed at the lower end of the movable upright column.

Furthermore, the horizontal pole can be followed the horizontal direction and relative first fixed block slides, the activity stand be the lead screw, through the screw thread with second fixed block threaded connection, the activity stand with the briquetting is for rotating the connection.

On the other hand, the invention provides a method for manufacturing a headwall by using the process equipment for manufacturing the headwall by using the low-floor vehicle, which comprises the following specific steps:

s1, placing the wall board of the end wall on the mould, and determining a basic position by matching the hinged seat on the back of the end wall with the positioning groove 101;

s2, after the wallboard of the end wall is measured and adjusted, putting the wallboard into the first pressing device, and adjusting the tightness of the bilateral structure of the first pressing device to press the supporting seat arranged in the upper area of the end wall, so as to preliminarily fix the wallboard;

s3, sequentially adjusting the other pressing devices to press the wallboard;

and S4, fitting and fixing the end corner posts of the end wall and the side end face of the wallboard by adjusting the positioning devices to form the required processing radian, and assembling and processing.

The invention has the following advantages:

the whole device is simple and reliable, and the adjustable positioning device is designed and combined in the transverse and longitudinal directions of the tread sliding groove, so that the device is suitable for assembling and positioning various end walls with large-radian end corner columns, can be used for positioning along the appearance of the end wall at different positions, ensures that each position of an arc line is effectively positioned, and is flexible to fix and quick to adjust; the flatness of the end wall plate in the end wall assembly can be ensured through the pressing device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of a steel structure of a headwall;

FIG. 4 is a schematic view of the present invention in combination with a steel structure of the headwall;

FIG. 5 is a front view of a base plate according to an embodiment;

FIG. 6 is a side view of the first hold-down device;

FIG. 7 is a schematic structural view of a second pressing device;

fig. 8 is a side view of the second pressing device in the working position.

In the figure:

1-a mould; 2-a positioning device; 3-a first hold-down device; 4-a second hold-down device; 5-a bottom plate; 6-end wall steel structure; 101-a positioning groove; 102-a chute; 301-double-sided pressing arms; 302-a first stationary upright; 411-a second stationary upright; 412-rotating the column; 413-a first fixed block; 414-a cross-bar; 415-a movable upright post; 416-a second fixed block; 417-briquetting; 601-end wall panel top wall panel; 602-upper doorway; 603-hinge plate; 611-end wallboard left wallboard; 612-end wall panel right wall panel; 621-left end corner post; 622-right corner post.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "upper", "horizontal", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use. Such terms are merely used to facilitate describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

It should also be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention will be further described with reference to the accompanying figures 1-8.

A process equipment for manufacturing end walls of low-floor vehicles mainly comprises: the device comprises a mould 1, a positioning device 2 and a pressing device;

as shown in fig. 1, 2 and 4, the mold is composed of an upper part and a lower part, forming an inverted U-shaped plate structure, the tread of which is flat and is distributed with a plurality of sliding grooves 102, wherein the sliding grooves on the upper part of the tread are distributed longitudinally, and the sliding grooves on the lower part are distributed transversely; preferably, the sliding groove 102 is a T-shaped sliding groove, and the upper portion of the tread is designed to sink toward the center to form a positioning groove 101 for placing an end wall back hinge seat to ensure the accurate position of the hinge device.

The positioning device 2 is of a pressing plate structure, as shown in fig. 1 and 2, at least one end of which is provided with a U-shaped groove, and is locked with the sliding groove 102 through a fastener and fixed in position; preferably, the fastener adopts the bolt, nut one end is located T type spout, the nut is located positioner 2's upper surface, can fix positioner 2 on spout 102 after screwing up, further positioner 2's profile shape can be rectangle or complicated shape, wherein, be close to the tread lower extreme and install two positioner 2 of complicated shape, as shown in fig. 1, 2, be used for propping against the end wall steel construction lower edge, play the effect of location, and further, positioner 2 and the left and right

end corner post

621, 622 surface contact department of some point positions can be processed into the cambered surface, makes it laminate the work piece surface more, is convenient for fix.

Preferably, the pressing means comprise first pressing means 3, two groups of first pressing means 3 being arranged symmetrically in the upper region of the tread along the median line of the molding bed 1.

Further, as shown in fig. 6, the first pressing device 3 includes: a first fixed upright 302 and a bilateral pressure arm 301; the first fixed upright 302 is fixed on the mould through lower end threads; the bilateral pressure arm 301 is horizontal, is provided with a through hole near the center, is sleeved on the first fixed upright post 302 and can rotate or move up and down; both ends of the bilateral pressure arm 301 are bent downwards and provided with pressure plates, the pressure plates are parallel to the tire surface, and the pressure plates of the bilateral pressure arm 301 are pressed on the surface of the end wall through threads at the upper end of the first fixed upright post 302 and matched nuts.

Preferably, the tread is provided with a bottom plate 5, as shown in fig. 2, a total of 6 bottom plates 5 are installed, wherein two sides of the lower part of the tread are respectively provided with two bottom plates 5, the upper part of the tread is provided with two bottom plates 5 which are respectively positioned at the upper side and the lower side of the positioning groove 101, and at least one end of each bottom plate 5 is provided with a plurality of U-shaped grooves which can be locked with the sliding grooves 102 through bolts and fixed in position; further, the bottom plate 5, which is located on the upper portion of the tread and on the lower side of the positioning groove 101, can adopt a complex profile shape according to the structural characteristics of the end wall, so as to avoid interference with the steel structure of the end wall, and the specific shape is shown in fig. 5.

Each base plate 5 has a plurality of second pressing devices 4 mounted in parallel thereon, and preferably, as shown in fig. 7 and 8, the second pressing devices 4 include: a second fixed upright column 411, a rotating upright column 412, a first fixed block 413, a cross bar 414, a second fixed block 416, a movable upright column 415 and a press block 417;

a rotating column 412 which is installed on the second fixed column 411 and can rotate relative to the second fixed column 411, wherein a first fixed block 413 is installed at the upper end of the rotating column 412, a cross bar 414 horizontally passes through the first fixed block 413, a second fixed block 416 is installed at the tail end of the cross bar, a movable column 415 vertically passes through the second fixed block 416, and a pressing block 417 is installed at the lower end of the movable column 415; further, the cross bar 414 can slide relative to the first fixed block 413 along the horizontal direction, the movable upright column 415 is a screw rod and is in threaded connection with the second fixed block 416 through threads, the movable upright column 415 is in rotational connection with the press block 417, and the press block 417 is prevented from rotating relative to the surface of the wall board to scratch the surface of the end wall when the movable upright column 415 is rotated to press the

end wall boards

601, 611 and 612 downwards; the pressing block 417 may be in different forms according to specific positions, and may be one of a square, a circular truncated cone, or a cylinder, and its smooth surface may be used to press the end wall plate, or as shown in fig. 7, the bottom surface is provided with a groove, and the size and shape of the groove are matched with the reinforcing plate of the end wall to press the reinforcing plate of the doorway.

On the other hand, according to the above technical solution, the present embodiment further provides a method for manufacturing an end wall, which includes the following specific steps:

as shown in fig. 3, the assembled and processed low-floor vehicle headwall steel structure 6 mainly comprises a headwall upper wallboard 601, a doorway upper part 602, a hinge plate 603, a headwall left wallboard 611, a headwall right wallboard 612, a left end corner post 621 and a right end corner post 622. First, the left,

right wall boards

601, 611, 612 on the end wall board are placed on the mold 1 of the present invention, and the basic position is determined by the cooperation of the hinged seat on the back of the hinged plate 603 and the positioning groove 101, after the specific adjustment, the two side pressing arms of the pressing device 3 are placed, the nut tightness is adjusted, the pressing plate structure presses the supporting seat installed on the upper part of the end wall board, so as to fix the end wall board preliminarily, then the length of the cross bar 414 of the pressing device 4 on each bottom plate 5 is adjusted in sequence, and the movable upright 415 is screwed, so that the pressing block 417 of each pressing device 4 presses the left,

right wall boards

611, 612 of the end wall board and the upper part 602 of. Finally, the left and

right corner posts

621 and 622 are fitted and fixed with the side end faces of the wall board by adjusting the positioning device 2 to form a required radian, and the station combination structure is shown in fig. 4.

Although the present invention has been described in detail with reference to examples, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A process kit for manufacturing a headwall for a low floor vehicle, comprising: the clamping fixture comprises a clamping fixture (1), a positioning device (2) and a pressing device;

the tire is characterized in that the tire is of an inverted U-shaped plate structure, the tire surface of the tire is flat, and a plurality of sliding grooves (102) are distributed, wherein the sliding grooves on the upper part of the tire surface are longitudinally distributed, and the sliding grooves on the lower part of the tire surface are transversely distributed;

the positioning device (2) is of a pressure plate structure, at least one end of the positioning device is provided with a U-shaped groove, and the positioning device is locked with the sliding groove (102) through a fastener and is fixed in position;

the pressing device is arranged on the tire tread and comprises a first pressing device (3), and the first pressing device (3) is a bilateral pressing mechanism.

2. The tooling for manufacturing headwall of low floor vehicle as claimed in claim 1 wherein the upper tread is provided with a positioning groove (101).

3. The tooling for manufacturing headwall for low floor vehicles according to claim 1, wherein the chute (102) is a T-chute.

4. The low floor vehicle headwall process equipment as claimed in claim 1, wherein the side of the positioning device (2) contacting the workpiece is machined into a cambered surface.

5. The low floor vehicle headwall process equipment as claimed in claim 1, wherein at least one bottom plate (5) is installed on the tread, at least one end of the bottom plate (5) is provided with a plurality of U-shaped grooves, the U-shaped grooves are locked with the sliding grooves (102) through fasteners and fixed in position, and at least one pressing device is installed on each bottom plate (5).

6. The tooling for manufacturing the headwall of the low-floor vehicle as claimed in any one of the claims 1 to 5, wherein the first pressing devices (3) are arranged in two groups, symmetrically distributed along the center line of the clamping fixture (1) in the upper area of the tread; the first pressing device (3) comprises: a first fixed upright post (302) and a bilateral pressure arm (301);

the first fixed upright post (302) is fixed on the mould; the bilateral pressure arm (301) is horizontal, is provided with a through hole near the center, is sleeved on the first fixed upright post (302), and can rotate or move up and down; and two ends of the two lateral pressure arms (301) are bent downwards and provided with pressure plates, and the pressure plates are parallel to the tire surface.

7. The low-floor vehicle headwall process equipment as claimed in any one of claims 1 to 5, wherein the pressing device comprises a second pressing device (4), a plurality of the second pressing devices (4) are arranged in parallel as a group, and a plurality of groups of the pressing devices (4) are sequentially distributed along the inner side of the U-structure type of the clamping fixture (1).

8. The tooling for the manufacture of headwall for low floor vehicles according to claim 7, wherein the second hold-down device (4) comprises: a second fixed upright column (411), a rotating upright column (412), a first fixed block (413), a cross bar (414), a second fixed block (416), a movable upright column (415) and a pressing block (417);

the rotating upright column (412) is mounted on the second fixed upright column (411) and can rotate relative to the second fixed upright column (411), the first fixed block (413) is mounted at the upper end of the rotating upright column (412), the cross rod (414) penetrates through the first fixed block (413) in the horizontal direction and is mounted at the tail end of the second fixed block (416), the movable upright column (415) penetrates through the second fixed block (416) in the vertical direction and is mounted at the lower end of the pressing block (417).

9. The tooling for manufacturing the headwall of the low-floor vehicle as claimed in claim 8, wherein the cross bar can slide relative to the first fixed block (413) along a horizontal direction, the movable upright post (415) is a lead screw and is in threaded connection with the second fixed block (416) through a thread, and the movable upright post (415) is in rotational connection with the pressing block (417).

10. The method for manufacturing the headwall by using the process equipment for manufacturing the headwall by the low-floor vehicle as claimed in any one of claims 1 to 9, is characterized by comprising the following specific steps:

s1, placing the wall board of the end wall on the tread of the mould (1), and determining the basic position by the cooperation of the hinged seat on the back of the end wall and the positioning groove 101;

s2, after the wallboard of the end wall is measured and adjusted, putting the wallboard into the first pressing device (3), and adjusting the tightness of the bilateral structure of the first pressing device (3) to press the supporting seat arranged at the upper part of the end wall so as to preliminarily fix the wallboard;

s3, sequentially adjusting the other pressing devices to press the wallboard;

and S4, fitting and fixing the end corner posts of the end wall and the side end face of the wallboard by adjusting the positioning device (2), forming the required processing radian, and assembling and processing.