CN110653549B - Pneumatic fixture for forklift portal assembly welding - Google Patents
Pneumatic fixture for forklift portal assembly welding Download PDFInfo
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- CN110653549B CN110653549B CN201910928848.3A CN201910928848A CN110653549B CN 110653549 B CN110653549 B CN 110653549B CN 201910928848 A CN201910928848 A CN 201910928848A CN 110653549 B CN110653549 B CN 110653549B
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- 238000003466 welding Methods 0.000 title abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 230000000712 assembly Effects 0.000 claims abstract description 34
- 238000000429 assembly Methods 0.000 claims abstract description 34
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a forklift mast assembly welding pneumatic clamp, which comprises: the device comprises a workbench, a portal channel steel end positioning assembly, a portal support positioning assembly, a portal inclined oil cylinder fixing plate positioning assembly, a portal channel steel inner opening positioning assembly, a portal channel steel outer side positioning assembly, a portal channel steel lower end surface positioning assembly, a portal upper beam positioning assembly and a portal upper beam end positioning assembly; the portal channel steel end positioning assembly is provided with two; the portal support positioning assembly is provided with two portal support positioning assemblies; the portal inclined oil cylinder fixing plate positioning assembly is provided with two portal inclined oil cylinder fixing plate positioning assemblies; the door frame channel steel inner opening positioning assembly is arranged at the top of the workbench along the axis of the workbench; the portal channel steel outer side positioning components are provided with a plurality of portal channel steel outer side positioning components; the lower end surface positioning assembly of the portal channel steel is provided with a plurality of positioning assemblies. The pneumatic clamp has high positioning precision and high automation degree.
Description
Technical Field
The invention relates to the technical field of forklift fitting machining, in particular to a forklift gantry assembly welding pneumatic clamp.
Background
The forklift mast is an indispensable system in the forklift complete machine, plays a very important role in the complete machine, and the quality of the forklift mast directly determines the forklift load safety and various technical performances. The welding fixture of the forklift mast is a source for guaranteeing the quality of the forklift mast. Traditional fork truck portal welding jig relies on manual clamp, and manual positioning, and the precision of location is low, and degree of automation is low, and portal manufacturing precision also has great gap with international first class fork truck enterprise.
Therefore, the pneumatic fixture for assembling and welding the forklift gantry with high positioning accuracy and high automation degree is researched and is a problem to be solved by the technicians in the field.
Disclosure of Invention
The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a forklift mast assembly welding pneumatic clamp, comprising:
A work table;
the two portal channel steel end positioning assemblies are symmetrically arranged at the top of the workbench by taking the axis of the workbench as the center;
the two portal support positioning assemblies are symmetrically arranged at the top of the workbench by taking the axis of the workbench as the center;
The two portal inclined oil cylinder fixing plate positioning assemblies are symmetrically arranged at the top of the workbench by taking the axis of the workbench as the center;
The door frame channel steel inner opening positioning assembly is arranged at the top of the workbench along the axis of the workbench;
The portal channel steel outer side positioning assemblies are arranged in a plurality, and are symmetrically arranged at the top of the workbench by taking the axis of the workbench as the center;
the lower end face positioning assemblies of the portal channel steel are provided with a plurality of, and are symmetrically arranged at the top of the workbench by taking the axis of the workbench as the center;
the portal upper beam positioning assembly is arranged at the top of the workbench along the axis of the workbench and is in sliding connection with the top of the workbench;
The two portal upper beam end positioning assemblies are symmetrically arranged at the top of the workbench by taking the axis of the workbench as the center, and are arranged at two sides of the portal upper beam positioning assemblies.
By adopting the technical scheme, the door frame welding device has the beneficial effects that the welding position is more accurate when the door frame is welded by positioning the structures on the door frame, and the plurality of parts are symmetrically distributed and can synchronously position the door frame, so that the positioning is more accurate.
Preferably, the portal channel steel end positioning assembly comprises: the first base and the L-shaped supporting block; the first base is arranged at the top of the workbench, one end of the supporting block is arranged at the top of the first base, and the other end of the supporting block is abutted to the end face of the portal channel steel.
Preferably, the gantry support positioning assembly comprises: the device comprises a second base, a first cylinder, a second cylinder and a flange; the second base is provided with two layers, the first cylinder is arranged in the bottom layer of the second base, and a first piston rod in the first cylinder passes through the side wall of the second base and is abutted against the outer side wall of the portal channel steel; the second cylinder is arranged in the top layer of the second base, a second piston rod in the second cylinder penetrates through the side wall of the second base to be connected with the flange, and the flange is arranged at the top of the portal support and is abutted to the top of the portal support. The portal support positioning assembly not only can position the portal support but also can compress tightly the outside of portal channel-section steel to the flange promotes through the second cylinder and advances to remove, can realize automatic positioning and automatic drawing of patterns, and degree of automation is high, and two symmetrical portal support positioning assemblies act simultaneously, can be more swift fix a position the portal support.
Preferably, the portal tilting cylinder fixed plate positioning assembly comprises: a third base supporting the shaft; the third base is arranged at the top of the workbench; the support shaft is arranged at the top of the third base and is connected with the portal inclined oil cylinder fixing plate.
Preferably, the door frame channel-section steel inner open gear locating component includes: the device comprises a third cylinder, a moving block base, a positioning block and a positioning block base; the movable blocks are wedge-shaped, the movable blocks are arranged at the top of the movable block base, two movable blocks and the movable block base are respectively arranged, the arrangement directions of the two movable blocks are the same, and the two movable blocks are connected with two ends of the third cylinder; the locating block is arranged at the top of the locating block base and is in sliding connection with the locating block base, four locating blocks and four locating block bases are arranged, two locating blocks are arranged at two sides of the moving block, one end of each locating block is abutted to the side wall of the moving block, and the other end of each locating block is abutted to the inner side face of the portal channel steel. The movement of the moving block is driven by the movement of the third air cylinder, as the moving block is wedge-shaped, one end of the moving block is wide, the other end of the moving block is narrow, the small end of the moving block in the initial state is in contact with the positioning blocks, when the large end of the moving block moves towards the small end direction, the moving block can push the positioning blocks to move towards two sides, after the large end of the moving block contacts with the positioning blocks, the movement is stopped, the positioning blocks tightly prop up the inner side face of the portal channel steel, the four positioning blocks move simultaneously, the movement distance is the same, the portal can be more accurate in welding, the arrangement directions of the two moving blocks are the same, and the four positioning blocks can move synchronously.
Preferably, the portal channel steel outside positioning assembly includes: a fourth cylinder and a fourth base; the top of workstation is arranged in to the fourth base, the fourth cylinder is arranged in the top of fourth base, the inside fourth piston rod of fourth cylinder with the lateral surface butt of portal channel-section steel. The plurality of fourth cylinders act simultaneously, so that the outer side face of the portal channel steel can be tightly propped, and the degree of automation is improved.
Preferably, the portal channel steel lower end face positioning assembly comprises: a fifth base and a rotating shaft; the five bases are arranged at two, and are arranged at the top of the workbench, the rotating shaft is arranged between the two five bases and is rotationally connected with the five bases, the rotating shaft is arranged at the bottom of the portal channel steel, and the axis of the rotating shaft is vertical to the portal channel steel. After the portal channel steel is placed on the rotating shaft, when the portal channel steel is pulled, the rotating shaft can rotate, and the position of the portal channel steel is more convenient to adjust.
Preferably, the portal upper beam positioning assembly comprises: a sixth base, a first positioning plate; the sixth base is arranged at the top of the workbench and is in sliding connection with the workbench, and the first positioning plate is arranged at the top of the sixth base and is abutted to the side face of the upper beam of the portal frame. When the door frames with different lengths are welded, the position of the sixth base can be conveniently adjusted, and then the position of the upper cross beam of the door frame is determined.
Preferably, the portal upper beam end positioning assembly comprises: a seventh base and a second positioning plate; the seventh base is arranged at the top of the workbench, and the second locating plate is arranged at the top of the seventh base and is abutted to the side face of the end part of the upper beam of the portal frame.
The top of workstation is equipped with the portal bottom plate locating component that is used for as the location benchmark, portal bottom plate locating component is arranged in two between the portal channel-section steel end locating component. And because the lengths of the welded door frames are inconsistent, the door frame bottom plate positioning assembly is used as a positioning reference to calibrate the positions of the door frame channel steel.
Compared with the prior art, the invention discloses a pneumatic fixture for forklift mast assembly welding, which has the beneficial effects that:
(1) According to the invention, by positioning each structure on the portal frame, the welding position is more accurate when the portal frame is welded, and the positioning components are distributed symmetrically, so that the portal frame can be positioned synchronously, and the positioning is more accurate;
(2) And the positioning assembly can realize automatic clamping and positioning by selecting cylinders, so that the degree of automation is improved, and the labor intensity of workers is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a front view structure of a pneumatic clamp provided by the invention;
FIG. 2 is a schematic top view of the pneumatic clamp according to the present invention;
FIG. 3 is a schematic left-side view of the pneumatic clamp according to the present invention;
FIG. 4 is a schematic side view of a gantry support positioning assembly according to the present invention;
Fig. 5 is a schematic structural view of one of the forklift mast provided by the invention.
Wherein, in the drawing,
1-A workbench;
2-portal channel steel end positioning components;
21-a first base; 22-supporting blocks;
3-a gantry support positioning assembly;
31-a second base; 32-a first cylinder; 33-a second cylinder; 34-flange;
4-portal inclined oil cylinder fixing plate positioning assembly;
41-a third base; 42-supporting the shaft;
5-a door frame channel steel inner opening positioning assembly;
51-a third cylinder; 52-moving the block; 53-moving block base; 54-positioning blocks; 55-positioning block bases; 56-mounting plate; 57-connecting rod; 58-movable joint; 59-a roller;
6-a portal channel steel outer side positioning assembly;
61-fourth cylinder; 62-fourth base;
7-a positioning assembly for the lower end face of the portal channel steel;
71-a fifth mount; 72-rotating shaft;
8-a portal upper beam positioning assembly;
81-sixth base; 82-a first positioning plate;
9-a portal upper beam end positioning assembly;
91-seventh mount; 92-a second positioning plate;
10-portal channel steel; 11-a portal support; 12-a portal inclined oil cylinder fixing plate; 13-a portal upper beam; 14-a gantry floor positioning assembly; 15-connecting piece; 16-eighth base; 17-connecting rod.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The embodiment of the invention discloses a forklift gantry assembly welding pneumatic clamp, which comprises the following components:
A work table 1;
the two portal channel steel end positioning assemblies 2 are symmetrically arranged at the top of the workbench 1 by taking the axis of the workbench 1 as the center;
the two portal support positioning assemblies 3 are arranged, and the portal support positioning assemblies 3 are symmetrically arranged at the top of the workbench 1 by taking the axis of the workbench 1 as the center;
the two portal inclined oil cylinder fixing plate positioning assemblies 4 are symmetrically arranged at the top of the workbench 1 by taking the axis of the workbench 1 as the center;
The door frame channel steel inner opening positioning assembly 5 is arranged at the top of the workbench 1 along the axis of the workbench 1;
The portal channel steel outer side positioning assemblies 6 are arranged in number, and the portal channel steel outer side positioning assemblies 6 are symmetrically arranged at the top of the workbench 1 by taking the axis of the workbench 1 as the center;
the lower end face positioning assemblies 7 of the portal channel steel are arranged in a plurality of numbers, and are symmetrically arranged at the top of the workbench 1 by taking the axis of the workbench 1 as the center;
the portal upper beam positioning component 8 is arranged at the top of the workbench 1 along the axis of the workbench 1 and is in sliding connection with the top of the workbench 1;
The two portal upper beam end positioning assemblies 9 are arranged, the top of the workbench 1 is symmetrically arranged by taking the axis of the workbench 1 as the center, and the portal upper beam end positioning assemblies 9 are arranged on two sides of the portal upper beam positioning assembly 8.
In order to further optimize the above technical solution, the portal channel steel end positioning assembly 2 includes: a first base 21, an "L" shaped support block 22; the top of workstation 1 is arranged in to first base 21, and the top of first base 21 is arranged in to one end of supporting shoe 22, and the terminal surface butt of other end and portal channel-section steel 10.
In order to further optimise the above technical solution, the mast carrier positioning assembly 3 comprises: a second base 31, a first cylinder 32, a second cylinder 33, a flange 34; the second base 31 is provided with two layers, the first air cylinder 32 is arranged in the bottom layer of the second base 31, and a first piston rod in the first air cylinder 32 passes through the side wall of the second base 31 and is abutted against the outer side wall of the door frame channel steel 10; the second cylinder 33 is disposed in the top layer of the second base 31, and a second piston rod in the second cylinder 33 passes through the side wall of the second base 31 to be connected with a flange 34, and the flange 34 is disposed at the top of the door frame support 11 and is abutted against the top of the door frame support 11.
In order to further optimize the above technical solution, the gantry tilt cylinder fixing plate positioning assembly 4 includes: a third base 41 supporting the shaft 42; the third base 41 is placed on top of the table 1; the support shaft 42 is disposed at the top of the third base 41 and connected to the gantry tilt cylinder fixing plate 12. The portal tilt cylinder fixing plate 12 is provided with a hole, the support shaft 42 penetrates into the hole of the portal tilt cylinder fixing plate 12 to position the hole, and the portal tilt cylinder fixing plate 12 is welded after the positioning.
In order to further optimize the above technical solution, the gantry channel steel inner shift positioning assembly 5 includes: a third cylinder 51, a moving block 52, a moving block base 53, a positioning block 54, and a positioning block base 55; the movable blocks 52 are wedge-shaped, the movable blocks 52 are arranged at the top of the movable block base 53, two movable blocks 52 and the movable block base 53 are arranged, the arrangement directions of the two movable blocks 52 are the same, and the two movable blocks 52 are connected with two ends of the third air cylinder 51; the locating block 54 is arranged at the top of the locating block base 55 and is in sliding connection with the locating block base 55, four locating blocks 54 and four locating block bases 55 are arranged, two locating blocks 54 are arranged at two sides of the moving block 52, one end of each locating block 54 is abutted with the side wall of the moving block 52, and the other end of each locating block 54 is abutted with the inner side face of the portal channel steel 10.
In order to further optimize the technical scheme, a third piston rod is arranged in the third cylinder 51, penetrates through the third cylinder 51 and reciprocates in the third cylinder 51, and two ends of the third piston rod are respectively connected with the two moving blocks 52; mounting plates 56 are arranged at two ends of the third air cylinder 51, and the bottom of the mounting plates 56 is connected with the top of the workbench 1; a connecting rod 57 is arranged between the third piston rod and the moving block 52; a movable joint 58 is arranged at the joint of the connecting rod 57 and the third piston rod; a roller 59 is arranged at the contact end of the positioning block 54 and the moving block 52, and the roller 59 is contacted with the side wall of the moving block 52. An elastic piece is arranged on the side wall of one end of the positioning block 54, which is contacted with the portal frame, and the other end of the elastic piece is connected with the side wall of the positioning block base 55.
In order to further optimize the above technical solution, the gantry channel steel outside positioning assembly 6 comprises: a fourth cylinder 61 and a fourth base 62; the fourth base 62 is arranged at the top of the workbench 1, the fourth air cylinder 61 is arranged at the top of the fourth base 62, and a fourth piston rod in the fourth air cylinder 61 is abutted against the outer side surface of the door frame channel 10. The two ends of the outer side positioning component 6 of the portal channel steel, which are symmetrically positioned at two sides of the portal channel steel 10, are arranged to position the portal channel steel 10 more stably.
In order to further optimize the above technical solution, the portal channel lower end surface positioning assembly 7 comprises: a fifth base 71, a rotation shaft 72; the fifth bases 71 are arranged at two and are arranged at the top of the workbench 1, the rotating shaft 72 is arranged between the two fifth bases 71 and is rotationally connected with the fifth bases 71, the rotating shaft 72 is arranged at the bottom of the portal channel steel 10, and the axis of the rotating shaft 72 is perpendicular to the portal channel steel 10.
To further optimise the above technical solution, the mast upper beam positioning assembly 8 comprises: a sixth base 81 and a first positioning plate 82; the sixth base 81 is disposed at the top of the workbench 1 and slidably connected to the workbench 1, and the first positioning plate 82 is disposed at the top of the sixth base 81 and abuts against the side surface of the upper beam 13 of the gantry.
To further optimise the above technical solution, the mast upper beam end positioning assembly 9 comprises: a seventh base 91 and a second positioning plate 92; the seventh seat 91 is disposed on top of the table 1, and the second positioning plate 92 is disposed on top of the seventh seat 91 and abuts against a side surface of an end portion of the upper beam 13 of the door frame.
In order to further optimize the technical scheme, the top of the workbench 1 is provided with a portal bottom plate positioning assembly 14 serving as a positioning reference, and the portal bottom plate positioning assembly 14 is arranged between the two portal channel steel end positioning assemblies 2.
In order to further optimize the technical scheme, one end, close to the portal entablature, of the portal channel steel 10 is welded with a connecting piece, two connecting pieces 15 are arranged and symmetrically arranged on the two portal channel steels 10, the top of the sixth base 81 is provided with the eighth base 16, the top of the eighth base 16 is provided with a connecting rod 17, the surface of the connecting piece 15 is provided with a through hole, and the connecting rod 17 is arranged in the through hole to position the connecting piece 15.
Working principle of portal channel steel inner opening positioning assembly:
The third cylinder 51 is started, the third piston rod moves to drive the connecting rod 57 to move, the connecting rod 57 drives the moving block 52 to move, the moving block 52 slides on the moving block base 53, in an initial state, the small end of the moving block 52 is in contact with the positioning block 54, when the large end of the moving block 52 moves towards the small end, the moving block 52 pushes the positioning block 54 to slide on the positioning block base 55, the two positioning blocks 54 move towards two sides of the moving block 52, when the large end of the moving block 52 is in contact with the positioning block 54, the positioning block 54 is propped against the portal channel steel at the moment, the movement is stopped, the door frame is welded, after the welding is finished, the third cylinder 51 drives the third piston rod to reversely move, the moving block 52 is driven to move, the small end of the moving block 52 moves towards the large end, the positioning block 54 returns to the original position under the elastic force of the elastic piece, and the positioning block 54 is separated from the portal channel steel.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (1)
1. The utility model provides a fork truck portal group welds pneumatic clamp which characterized in that includes:
A work table (1);
The portal channel steel end positioning assemblies (2) are arranged, and the portal channel steel end positioning assemblies (2) are symmetrically arranged at the top of the workbench (1) by taking the axis of the workbench (1) as the center; the portal channel steel end positioning assembly (2) comprises: a first base (21) and an L-shaped supporting block (22); the first base (21) is arranged at the top of the workbench (1), one end of the supporting block (22) is arranged at the top of the first base (21), and the other end of the supporting block is abutted against the end face of the door frame channel steel (10);
The portal support positioning assemblies (3) are arranged, and the portal support positioning assemblies (3) are symmetrically arranged at the top of the workbench (1) by taking the axis of the workbench (1) as the center; the portal support positioning assembly (3) comprises: the device comprises a second base (31), a first cylinder (32), a second cylinder (33) and a flange (34); the second base (31) is provided with two layers, the first air cylinder (32) is arranged in the bottom layer of the second base (31), and a first piston rod in the first air cylinder (32) passes through the side wall of the second base (31) to be abutted against the outer side wall of the portal channel steel (10); the second cylinder (33) is arranged in the top layer of the second base (31), a second piston rod in the second cylinder (33) penetrates through the side wall of the second base (31) to be connected with the flange (34), and the flange (34) is arranged at the top of the portal support (11) and is abutted against the top of the portal support (11);
The two portal inclined oil cylinder fixing plate positioning assemblies (4) are arranged, and the two portal inclined oil cylinder fixing plate positioning assemblies (4) are symmetrically arranged at the top of the workbench (1) by taking the axis of the workbench (1) as the center; the portal tilting cylinder fixed plate positioning assembly (4) comprises: a third base (41) supporting the shaft (42); the third base (41) is arranged on the top of the workbench (1); the support shaft (42) is arranged at the top of the third base (41) and is connected with the door frame inclined oil cylinder fixing plate (12);
The door frame channel steel inward opening positioning assembly (5), and the door frame channel steel inward opening positioning assembly (5) is arranged at the top of the workbench (1) along the axis of the workbench (1); the portal channel steel inner opening positioning assembly (5) comprises: the device comprises a third air cylinder (51), a movable block (52), a movable block base (53), a positioning block (54) and a positioning block base (55); the movable blocks (52) are wedge-shaped, the movable blocks (52) are arranged at the top of the movable block base (53), two movable blocks (52) and two movable block bases (53) are arranged, the arrangement directions of the two movable blocks (52) are the same, and the two movable blocks (52) are connected with the two ends of the third air cylinder (51); the positioning blocks (54) are arranged at the top of the positioning block base (55) and are in sliding connection with the positioning block base (55), four positioning blocks (54) and four positioning block bases (55) are arranged, two positioning blocks (54) are arranged at two sides of the moving block (52), one end of each positioning block (54) is abutted with the side wall of the corresponding moving block (52), and the other end of each positioning block is abutted with the inner side surface of the portal channel steel (10); a third piston rod is arranged in the third cylinder (51), penetrates through the third cylinder (51) and reciprocates in the third cylinder (51), and two ends of the third piston rod are respectively connected with the two moving blocks (52); mounting plates (56) are arranged at two ends of the third air cylinder (51), and the bottom of each mounting plate (56) is connected with the top of the workbench (1); a connecting rod (57) is arranged between the third piston rod and the moving block (52); a movable joint (58) is arranged at the joint of the connecting rod (57) and the third piston rod; a roller (59) is arranged at the contact end of the positioning block (54) and the moving block (52), and the roller (59) is contacted with the side wall of the moving block (52); an elastic piece is arranged on the side wall of one end of the positioning block (54) which is contacted with the portal frame, and the other end of the elastic piece is connected with the side wall of the positioning block base (55);
The portal channel steel outer side positioning assemblies (6) are arranged, and the portal channel steel outer side positioning assemblies (6) are symmetrically arranged at the top of the workbench (1) by taking the axis of the workbench (1) as the center; the portal channel-section steel outside locating component (6) includes: a fourth cylinder (61) and a fourth base (62); the fourth base (62) is arranged at the top of the workbench (1), the fourth air cylinder (61) is arranged at the top of the fourth base (62), and a fourth piston rod in the fourth air cylinder (61) is abutted against the outer side face of the portal channel steel (10);
The lower end face positioning assemblies (7) of the portal channel steel are arranged, and the portal channel steel lower end face positioning assemblies (7) are symmetrically arranged at the top of the workbench (1) by taking the axis of the workbench (1) as the center; the portal channel steel lower end face positioning assembly (7) comprises: a fifth base (71) and a rotating shaft (72); the two fifth bases (71) are arranged at the top of the workbench (1), the rotating shaft (72) is arranged between the two fifth bases (71) and is rotationally connected with the fifth bases (71), the rotating shaft (72) is arranged at the bottom of the portal channel steel (10), and the axis of the rotating shaft is perpendicular to the portal channel steel (10);
The portal upper beam positioning assembly (8) is arranged at the top of the workbench (1) along the axis of the workbench (1), and is in sliding connection with the top of the workbench (1); the portal upper beam positioning assembly (8) comprises: a sixth base (81) and a first positioning plate (82); the sixth base (81) is arranged at the top of the workbench (1) and is in sliding connection with the workbench (1), and the first positioning plate (82) is arranged at the top of the sixth base (81) and is abutted against the side face of the portal upper cross beam (13);
the two portal upper beam end positioning assemblies (9) are symmetrically arranged at the top of the workbench (1) by taking the axis of the workbench (1) as the center, and are arranged at two sides of the portal upper beam positioning assemblies (8); the portal upper beam end positioning assembly (9) comprises: a seventh base (91) and a second positioning plate (92); the seventh base (91) is arranged at the top of the workbench (1), and the second positioning plate (92) is arranged at the top of the seventh base (91) and is abutted against the side surface of the end part of the portal upper cross beam (13); the top of the workbench (1) is provided with a portal bottom plate positioning assembly (14) serving as a positioning reference, and the portal bottom plate positioning assembly (14) is arranged between the two portal channel steel end positioning assemblies (2); one end of the portal channel steel (10) close to the portal entablature is welded with the connecting piece still, and connecting piece (15) are equipped with two, and on two portal channel steels (10) were located to the symmetry, the top of sixth base (81) was equipped with eighth base (16), and the top of eighth base (16) is equipped with connecting rod (17), and the surface of connecting piece (15) is equipped with the through-hole, and connecting rod (17) are arranged in the through-hole and are fixed a position connecting piece (15).
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CN114310123A (en) * | 2022-02-10 | 2022-04-12 | 杭州叉车门架有限公司 | Outer portal welding frock |
CN114799706A (en) * | 2022-06-08 | 2022-07-29 | 唐山盛航环保机车制造有限公司 | Portal assembly welding frock of adjustable height |
CN115041899B (en) * | 2022-06-23 | 2022-12-23 | 杭州叉车门架有限公司 | Portal welding frock |
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CN205464939U (en) * | 2015-12-31 | 2016-08-17 | 浙江吉鑫祥叉车制造有限公司 | Outer mast assembly welding frock |
KR101989556B1 (en) * | 2017-12-11 | 2019-06-14 | 주식회사 세원정공 | Cowl cross assembly welding apparatus |
CN110280956A (en) * | 2019-07-30 | 2019-09-27 | 安徽合力股份有限公司 | A kind of outer portal frame of forklift group mounted welder |
CN210703337U (en) * | 2019-09-28 | 2020-06-09 | 唐山盛航环保机车制造有限公司 | Pneumatic clamp for assembling and welding forklift gantry |
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CN202147110U (en) * | 2011-07-15 | 2012-02-22 | 安徽威玛重型机械制造有限公司 | Adjustable support for welding outer portal of balance weight type forklift |
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CN205464939U (en) * | 2015-12-31 | 2016-08-17 | 浙江吉鑫祥叉车制造有限公司 | Outer mast assembly welding frock |
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