CN210818166U

CN210818166U - Tool for fixing bottom plate of chassis frame body of low chassis

Info

Publication number: CN210818166U
Application number: CN201921516609.9U
Authority: CN
Inventors: 孟繁君; 高洪祥
Original assignee: Tianjin Zhiyuan Machinery Manufacturing Co ltd
Current assignee: Tianjin Zhiyuan Machinery Manufacturing Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-06-23
Anticipated expiration: 2029-09-10

Abstract

The utility model provides a tool for fixing a bottom plate of a chassis body of a low chassis, which comprises an operation platform, wherein a main frame is fixedly welded below the operation platform and is connected with a lifting component; the bottom of the operating platform is fixedly connected with four symmetrically distributed hydraulic telescopic assemblies; two parallel sliding beams are fixedly connected below the main frame, and two ends of each sliding beam are movably connected with vertical rails; the edge of the operating platform is fixedly provided with a positioning component; four positioning seats are arranged on the operating platform. Fixed low chassis vehicle bottom support body frock for bottom plate have low cost, workable, easy maintenance, positioning accuracy is high, press from both sides characteristics such as tight well, convenient operation, can fix low chassis vehicle bottom support body bottom plate better.

Description

Tool for fixing bottom plate of chassis frame body of low chassis

Technical Field

The utility model belongs to welding frock field especially relates to a fixed low chassis vehicle bottom is frock for support body bottom plate.

Background

The welding tool is a set of flexible fixture for welding, fixing, compressing and positioning. The welding machine is mainly used for welding various weldable materials and welding large, medium and small materials. The fixture is a technological device which accurately positions and reliably clamps the weldment, facilitates assembly and welding of the weldment and ensures the structural precision requirement of the weldment. The tool clamp adaptive to the product structure is actively popularized and used in modern welding production, and plays an important role in improving the product quality, reducing the labor intensity of workers, accelerating the realization of mechanized and automatic processes of welding production and the like.

In the welding production process, the welding needs less working hours, and the time which is more than 2/3 and accounts for the whole processing working hours is used for preparing materials, assembling and other auxiliary works, thereby greatly influencing the production speed of the welding. Therefore, the welding tool which is simple and convenient to operate and accurate in positioning must be widely popularized and used.

The current welder has two development directions: one is to manufacture a special welding tool for a product, and the other is to use a welding flexible working platform to assemble a general welding tool suitable for various products.

For special welding frock, the advantage is: the frock is traded the type fast, and the preparation time of workman's change frock is short. When the work staff prepares the tool, the same tool can be used as long as the work staff confirms that the product drawings are the same. The disadvantages are that: first engineer needs to spend a week or even several weeks to design special frock, and second, special frock has occupied a large amount of spaces in mill, and third manufacturing cost is too high, and the company need design different special frock and satisfy welding accuracy requirement when receiving the product of different specifications.

For assembling the welding tool by using the welding flexible working platform, the scheme well overcomes the defect of using a special tool, greatly saves the space of a factory, and simultaneously, the flexible working platform can be repeatedly used. Each time a project is completed, the platform can remove each positioning workpiece and restore the initial state of the platform. For each time of changing the welding product, a worker only needs to call out a 3D (three-dimensional) drawing of the product stored in a computer for positioning and clamping on the platform and assemble positioning and clamping elements according to the drawing, so that the assembly of the welding tool can be completed. However, the use of a flexible work platform also has significant disadvantages: the flexible working platform has high one-time investment cost; the platform is troublesome to maintain, collision is prevented when the platform is used, and the positioning rigidity is poor; when the workpiece moves, the platform and the positioning piece are easy to collide.

In the process of machining the bottom plate of the chassis body, a plurality of positions of the bottom plate of the chassis body need to be welded with related components. Because the structure of low chassis underframe body is different with ordinary passenger train underframe body, the processing of low chassis car is stricter than ordinary passenger train with maintaining, greatly increased the cost, so need design a fixed low chassis underframe body frock for bottom plate with low cost, low maintenance requirement, positioning accuracy height for reduce cost.

Disclosure of Invention

In view of this, the utility model aims at providing fixed low chassis body frock for bottom plate has characteristics such as low cost, workable, easy maintenance, positioning accuracy height, press from both sides tightly well, convenient operation, has further guaranteed the uniformity of product processing.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the tool for fixing the bottom plate of the chassis body of the low chassis comprises an operating platform, wherein a main frame is fixedly welded below the operating platform and is connected with a lifting assembly; the bottom of the operating platform is fixedly connected with a hydraulic telescopic assembly, and the hydraulic telescopic assembly can play an auxiliary supporting role on the operating platform; two parallel sliding beams are fixedly connected below the main frame, vertical rails are arranged on two sides of the main frame, and the sliding beams are movably connected with the vertical rails and used for limiting the main frame and improving the stability of the operation platform in the lifting process; the edge of the operating platform is fixedly provided with a positioning assembly for fixing a frame of a chassis body bottom plate of the low chassis; four positioning seats are arranged on the operating platform and used for supporting the bottom of the chassis body bottom plate of the low chassis.

Furthermore, the lifting assembly, the hydraulic telescopic assembly and the vertical rail are fixedly connected with the base plate.

Furthermore, the hydraulic telescopic assembly comprises a hydraulic motor, and a telescopic rod is connected to the hydraulic motor; the upper part of the telescopic rod is fixedly connected with the operating platform, and the lower end of the hydraulic motor is fixedly connected with the base plate.

Furthermore, the lifting assembly comprises two symmetrically arranged lead screw lifters, and the bottoms of the lead screw lifters are fixedly connected with the base plate; the screw rod lifter is connected with a screw rod, and the top end of the screw rod is fixedly connected with a second gear; a driven shaft penetrates through the main frame, the driven shaft is fixedly connected with a first gear, and the first gear is connected with a speed reduction motor; the first gear is meshed with the second gear; the driven shaft is fixedly connected with a third gear, and the third gear is meshed with the second gear.

Furthermore, a first mounting plate is welded on one side of the main frame, and the lead screw penetrates through the first mounting plate and is movably connected with the first mounting plate; a motor fixing frame is fixed on the first mounting plate, a speed reducing motor is fixed in the motor fixing frame, and the output shaft end of the speed reducing motor is fixedly connected with a first gear; a second mounting plate is welded on one side of the main frame, and the lead screw penetrates through the second mounting plate and is movably connected with the second mounting plate.

Further, the positioning assembly comprises a first positioning element and a second positioning element; the first positioning element is vertically welded on the inner edge of the short side of the operation platform, and the second positioning element is vertically welded on the inner edge of the long side of the operation platform; a first fixing plate and a second fixing plate are welded on the operating platform, the first fixing plate is parallel to the first positioning element, and the second fixing plate is parallel to the second positioning element; a first fixing pin penetrates through the first fixing plate and is in threaded connection with the first fixing plate; a second fixing pin penetrates through the second fixing plate and is in threaded connection with the second fixing plate.

Furthermore, a screw is connected to the positioning seat, the screw penetrates through the positioning seat and the operating platform, and a nut is connected to the lower portion of the screw in a threaded mode.

Furthermore, the upper end of the telescopic rod is provided with a groove, a laser induction switch is arranged in the groove, the laser induction switch emits laser upwards, and the distance between the bottom plate of the bottom frame body and the operating platform is induced through the laser.

Compared with the prior art, fixed low chassis vehicle bottom for chassis support body bottom plate tool have following advantage:

(1) the utility model discloses be provided with lifting unit, lifting unit passes through the fixed realization lift between the meshing between the gear and the driven shaft, simple structure, convenient operation.

(2) The utility model discloses be provided with the sliding beam and erect the rail, through the sliding beam and erect the cooperation between the rail for operation platform lift process is more steady.

(3) The utility model discloses be provided with the hydraulic telescoping assembly, the mode that drives the telescopic link through hydraulic motor realizes finely tuning operation platform high position.

(4) The utility model discloses be provided with laser inductive switch, through the distance between laser inductive switch response chassis body bottom plate and the operation platform, the operation of external control case control hydraulic motor is given to transmission signal simultaneously, has improved position control's precision.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic top view of an embodiment of the present invention;

fig. 3 is a schematic front view of an embodiment of the present invention;

FIG. 4 is a schematic view of a partial enlarged structure at the position I according to an embodiment of the present invention;

fig. 5 is a schematic view of a local enlarged structure at position ii according to an embodiment of the present invention;

description of reference numerals:

1-a substrate; 2-a hydraulic motor; 3, a telescopic rod; 301-grooves; 302-laser sensing switch; 4-operating the platform; 5-a main frame; 6-a first positioning element; 7-a first fixing plate; 8-a first fixing pin; 9-a second positioning element; 10-a second fixing plate; 11-a second fixation pin; 12-positioning seats; 13-a screw; 1301-a nut; 14-a first mounting plate; 15-motor fixing frame; 16-a reduction motor; 17-a first gear; 18-a driven shaft; 19-screw elevator; 20-a lead screw; 21-a second gear; 22-a vertical rail; 23-a sliding beam; 24-a third gear; 25-second mounting plate.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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 used merely for convenience of description and for simplicity of description, 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to the drawings of fig. 1-5, the tool for fixing the bottom plate of the chassis body of the low chassis comprises an operating platform 4, a main frame 5 is fixedly welded below the operating platform 4, and the main frame 5 is connected with a lifting assembly; the bottom of the operating platform 4 is fixedly connected with four symmetrically distributed hydraulic telescopic assemblies; two parallel sliding beams 23 are fixedly connected below the main frame 5, and two ends of the sliding beams 23 are movably connected with vertical rails 22; a positioning component is fixedly arranged at the edge of the operating platform 4; four positioning seats 12 are arranged on the operating platform 4. The lifting assembly, the hydraulic telescopic assembly and the vertical rail 22 are all fixedly connected with the base plate 1. The hydraulic telescopic assembly comprises a hydraulic motor 2, and a telescopic rod 3 is connected to the hydraulic motor 2; the upper part of the telescopic rod 3 is fixedly connected with the operating platform 4, and the lower end of the hydraulic motor 2 is fixedly connected with the base plate 1. The lifting assembly comprises two symmetrically arranged lead screw lifters 19, and the bottoms of the lead screw lifters 19 are fixedly connected with the substrate 1; the screw rod lifter 19 is connected with a screw rod 20, and the top end of the screw rod 20 is fixedly connected with a second gear 21; a driven shaft 18 penetrates through the main frame 5, the driven shaft 18 is fixedly connected with a first gear 17, and the first gear 17 is connected with a speed reduction motor 16; the first gear 17 meshes with the second gear 21; the driven shaft 18 is fixedly connected with a third gear 24, and the third gear 24 is meshed with the second gear 21. A first mounting plate 14 is welded on one side of the main frame 5, and a screw rod 20 penetrates through the first mounting plate 14 and is movably connected with the first mounting plate 14; a motor fixing frame 15 is fixed on the first mounting plate 14, a speed reducing motor 16 is fixed in the motor fixing frame 15, and the output shaft end of the speed reducing motor 16 is fixedly connected with a first gear 17; a second mounting plate 25 is welded on one side of the main frame 5, and the screw rod 20 penetrates through the second mounting plate 25 to be movably connected with the second mounting plate 25. The positioning assembly comprises a first positioning element 6 and a second positioning element 9; the first positioning element 6 is vertically welded on the inner edge of the short side of the operating platform 4, and the second positioning element 9 is vertically welded on the inner edge of the long side of the operating platform 4; a first fixing plate 7 and a second fixing plate 10 are welded on the operating platform 4, the first fixing plate 7 is parallel to the first positioning element 6, and the second fixing plate 10 is parallel to the second positioning element 9; a first fixing pin 8 penetrates through the first fixing plate 7, and the first fixing pin 8 is in threaded connection with the first fixing plate 7; a second fixing pin 11 is disposed through the second fixing plate 10, and the second fixing pin 11 is threadedly connected to the second fixing plate 10. The positioning seat 12 is connected with a screw 13, the screw 13 penetrates through the positioning seat 12 and the operating platform 4, and the lower part of the screw 13 is connected with a nut 1301 in a threaded manner. The upper end of the telescopic rod 3 is provided with a groove 301, and a laser induction switch 302 is arranged in the groove 301.

The utility model discloses a concrete theory of operation is: the bottom plate of the bottom frame body to be welded is hoisted above the operating platform 4 through a hoisting machine, the distance between the bottom plate of the bottom frame body and the operating platform 4 is sensed through a laser sensing switch 302, and when the bottom plate of the bottom frame body reaches the ideal height for lowering, the bottom plate of the bottom frame body is lowered onto the operating platform 4; the frame of the bottom plate of the bottom frame body in the OY direction is clamped in a gap formed between the first positioning element 6 and the first fixing plate 7, the frame of the bottom plate of the bottom frame body in the OX direction is clamped in a gap formed between the second positioning element 9 and the second fixing plate 11, and the first fixing pin 8 and the second fixing pin 11 are screwed tightly, so that the frame of the bottom plate of the bottom frame body is fixed on the operating platform 4; when the worker needs to adjust the position height of the operating platform 4, the gear motor 16 is started, the first gear 17 fixedly connected with the output shaft end of the gear motor 16 rotates, the driven shaft 18 rotates along with the first gear 17, the third gear 24 fixedly connected with the driven shaft 18 rotates, the second gear 21 rotates along with the first gear 17 and the third gear 24 synchronously rotate, the screw rod 20 of the screw rod lifter 19 is driven to move up and down, the second gear 21 fixedly connected with the screw rod 20 moves up and down while rotating, the first gear 17 meshed with the second gear 21 moves up and down, because the output shaft of the gear motor 16 is fixedly connected with the first gear 17, the gear motor 16 also moves up and down, the motor fixing frame 15 for fixing the gear motor 16 moves up and down along with the second gear, the first mounting plate 14 fixedly connected with the motor fixing frame 15 moves up and down, because the mounting plate 14 is fixed on the main frame 5, the main frame 5 also moves up and down, so that the operation platform 4 is lifted up and down; hydraulic motor 2 is started, and hydraulic motor 2 drives telescopic link 3 flexible, and telescopic link 3's flexible length is unanimous with operation platform 4's lift distance, and the telescopic link can play the auxiliary stay effect to operation platform simultaneously.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Fixed low chassis vehicle underframe body frock for bottom plate, its characterized in that: the device comprises an operating platform (4), wherein a main frame (5) is fixedly welded below the operating platform (4) and is connected with a lifting assembly; the bottom of the operating platform (4) is fixedly connected with a hydraulic telescopic assembly; two parallel sliding beams (23) are fixedly connected below the main frame (5), vertical rails (22) are arranged on the left side and the right side of the main frame (5), and the sliding beams (23) are movably connected with the vertical rails (22); the edge of the operating platform (4) is fixedly provided with a positioning component.

2. The tool for fixing the bottom plate of the chassis body with the low chassis according to claim 1, is characterized in that: four positioning seats (12) are arranged on the operating platform (4); the lifting assembly, the hydraulic telescopic assembly and the vertical rail (22) are fixedly connected with the base plate (1).

3. The tool for fixing the bottom plate of the chassis body with the low chassis according to claim 1, is characterized in that: the hydraulic telescopic component comprises a hydraulic motor (2), and a telescopic rod (3) is connected to the hydraulic motor (2); the upper part of the telescopic rod (3) is fixedly connected with the operating platform (4), and the lower end of the hydraulic motor (2) is fixedly connected with the base plate (1).

4. The tool for fixing the bottom plate of the chassis body with the low chassis according to claim 1, is characterized in that: the lifting assembly comprises two symmetrically arranged lead screw lifters (19), and the bottoms of the lead screw lifters (19) are fixedly connected with the base plate (1); a screw rod (20) is connected to the screw rod lifter (19), and a second gear (21) is fixedly connected to the top end of the screw rod (20); a driven shaft (18) penetrates through the main frame (5), the driven shaft (18) is fixedly connected with a first gear (17), and the first gear (17) is connected with a speed reducing motor (16); the first gear (17) is meshed with the second gear (21); the driven shaft (18) is fixedly connected with a third gear (24), and the third gear (24) is meshed with the second gear (21).

5. The tool for fixing the bottom plate of the chassis body with the low chassis according to claim 4, is characterized in that: a first mounting plate (14) is welded on one side of the main frame (5), and a lead screw (20) penetrates through the first mounting plate (14) and is movably connected with the first mounting plate (14); a motor fixing frame (15) is fixed on the first mounting plate (14), a speed reducing motor (16) is fixed in the motor fixing frame (15), and the output shaft end of the speed reducing motor (16) is fixedly connected with a first gear (17); a second mounting plate (25) is welded on one side of the main frame (5), and the screw rod (20) penetrates through the second mounting plate (25) to be movably connected with the second mounting plate (25).

6. The tool for fixing the bottom plate of the chassis body with the low chassis according to claim 1, is characterized in that: the positioning assembly comprises a first positioning element (6) and a second positioning element (9), the first positioning element (6) is vertically welded on the inner edge of the short side of the operation platform (4), and the second positioning element (9) is vertically welded on the inner edge of the long side of the operation platform (4); a first fixing plate (7) and a second fixing plate (10) are welded on the operating platform (4), the first fixing plate (7) is parallel to the first positioning element (6), and the second fixing plate (10) is parallel to the second positioning element (9); a first fixing pin (8) penetrates through the first fixing plate (7), and the first fixing pin (8) is in threaded connection with the first fixing plate (7); a second fixing pin (11) penetrates through the second fixing plate (10), and the second fixing pin (11) is in threaded connection with the second fixing plate (10).

7. The tool for fixing the bottom plate of the chassis body with the low chassis according to claim 2, is characterized in that: the positioning seat (12) is connected with a screw (13), the screw (13) penetrates through the positioning seat (12) and the operating platform (4), and the lower portion of the screw (13) is in threaded connection with a nut (1301).

8. The tool for fixing the bottom plate of the chassis body with the low chassis according to claim 3, is characterized in that: the upper end of the telescopic rod (3) is provided with a groove (301), and a laser induction switch (302) is arranged in the groove (301).