阅读说明：本技术 一种叉车门架焊接内开档定位机构 (Positioning mechanism for opening gear in welding of forklift gantry ) 是由 汪能 郑国强 魏占礼 于 2019-09-28 设计创作，主要内容包括：本发明公开了一种叉车门架焊接内开档定位机构,包括：工作台、气缸、移动块、移动块底座、定位块、定位块底座；移动块呈楔形,移动块、移动块底座均设有两个,移动块置于移动块底座的顶部,且与移动块底座滑动连接；两个移动块置于气缸的两端且与气缸的端部相连接,两个移动块的布置方向相同；定位块置于定位块底座的顶部,且与定位块底座滑动连接,定位块、定位块底座均设有四个,两个定位块、定位块底座置于移动块的两侧,且定位块的一端与移动块的侧壁相抵接,另一端用于定位门架；气缸带动移动块移动,移动块将定位块向两侧顶开,定位块对门架定位。本发明中定位机构的定位准确性高,可以实现自动化程度高。(The invention discloses a forklift gantry welding inner opening positioning mechanism, which comprises: the device comprises a workbench, a cylinder, a moving block base, a positioning block and a positioning block base; the moving block is wedge-shaped, the number of the moving blocks is two, and the moving blocks are arranged at the top of the moving block base and are connected with the moving block base in a sliding mode; the two moving blocks are arranged at the two ends of the cylinder and connected with the end part of the cylinder, and the arrangement directions of the two moving blocks are the same; the positioning blocks are arranged at the top of the positioning block base and are in sliding connection with the positioning block base, four positioning blocks and four positioning block bases are arranged on the two sides of the moving block, one end of each positioning block is abutted to the side wall of the moving block, and the other end of each positioning block is used for positioning the portal frame; the cylinder drives the moving block to move, the moving block pushes the positioning block to two sides, and the positioning block positions the door frame. The positioning mechanism has high positioning accuracy and can realize high automation degree.)

1. The utility model provides a fork truck portal welds interior positioning mechanism that opens a gear which characterized in that includes: the device comprises a workbench (1), a cylinder (2), a moving block (3), a moving block base (4), a positioning block (5) and a positioning block base (6);

the cylinder (2), the moving block base (4) and the positioning block base (6) are arranged at the top of the workbench (1);

the moving block (3) is wedge-shaped, two moving blocks (3) and two moving block bases (4) are arranged, and the moving blocks (3) are arranged at the tops of the moving block bases (4) and are connected with the moving block bases (4) in a sliding mode; the two moving blocks (3) are arranged at two ends of the cylinder (2) and connected with the end part of the cylinder (2), and the arrangement directions of the two moving blocks (3) are the same;

the positioning blocks (5) are arranged at the top of the positioning block base (6) and are connected with the positioning block base (6) in a sliding mode, four positioning blocks (5) and four positioning block bases (6) are arranged, two positioning blocks (5) and two positioning block bases (6) are arranged on two sides of the moving block (3), one end of each positioning block (5) is abutted to the side wall of the corresponding moving block (3), and the other end of each positioning block (5) is used for positioning a portal frame;

the cylinder (2) drives the moving block (3) to move, the moving block (3) pushes the positioning block (5) to two sides, and the positioning block (5) positions the portal frame.

2. The welding inner-opening positioning mechanism for the forklift mast according to claim 1, wherein a piston rod (21) is arranged inside the cylinder (2), the piston rod (21) penetrates through the cylinder (2) and reciprocates in the cylinder (2), and two ends of the piston rod (21) are respectively connected with the two moving blocks (3).

3. The welding inner-opening positioning mechanism for the forklift mast according to claim 1 or 2, characterized in that mounting plates (22) are arranged at two ends of the cylinder (2), and the bottom of the mounting plates (22) is connected with the top of the workbench (1).

4. The welding inner opening positioning mechanism for the forklift mast according to claim 2, characterized in that a connecting rod (7) is arranged between the piston rod (21) and the moving block (3).

5. The welding inner shift positioning mechanism for the forklift mast according to claim 4, characterized in that a movable joint (8) is arranged at the joint of the connecting rod (7) and the piston rod (21).

6. The welding inner-opening positioning mechanism for the forklift mast according to any one of claims 1, 2, 4 or 5, characterized in that a first sliding block (31) is arranged at the bottom of the moving block (3), a first sliding rail (41) is arranged at the top of the moving block base (4), and the first sliding block (31) slides on the first sliding rail (41).

7. The welding inner-opening positioning mechanism for the forklift mast according to claim 6, wherein a supporting block (51) is arranged at a contact part of the positioning block (5) and the mast, an elastic member is arranged on a side wall of the supporting block (51), and the other end of the elastic member is connected with a side wall of the positioning block base (6).

8. The welding inner-opening positioning mechanism for the forklift mast according to claim 7, characterized in that a second sliding block (52) is arranged at the bottom of the positioning block (5), a second sliding rail (61) is arranged at the top of the positioning block base (6), and the second sliding block (52) slides on the second sliding rail (61).

9. The welding inner-opening positioning mechanism for the forklift mast according to any one of claims 1, 2, 4, 5, 7 or 8, characterized in that a roller (53) is arranged at the contact end of the positioning block (5) and the moving block (3), and the roller (53) is in contact with the side wall of the moving block (3).

Technical Field

The invention relates to the technical field of forklift accessory manufacturing, in particular to a forklift gantry welding inner-opening positioning mechanism.

Background

At present, the location type of opening a shelves in domestic fork truck portal welding is numerous, but current positioning mechanism has the location inaccurate, and degree of automation is lower, and production efficiency is also lower problem. The full lead screw that some domestic leading fork truck manufacturers adopted, guide rail pass through servo motor's the welding position mode of opening one's end in, however, this kind of position mode cost is higher, and general fork truck manufacturers can't put into use.

Therefore, the research on the forklift mast welding inner-shift positioning mechanism with accurate positioning precision is a problem which needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a fork truck portal welds interior positioning mechanism that opens a gear, includes: the device comprises a workbench, a cylinder, a moving block base, a positioning block and a positioning block base;

the cylinder, the moving block base and the positioning block base are arranged at the top of the workbench;

the moving block is wedge-shaped, the number of the moving blocks is two, and the moving blocks are arranged at the top of the moving block base and are connected with the moving block base in a sliding mode; the two moving blocks are arranged at two ends of the cylinder and connected with the end part of the cylinder, and the arrangement directions of the two moving blocks are the same;

the positioning blocks are arranged at the tops of the positioning block bases and are in sliding connection with the positioning block bases, four positioning blocks and four positioning block bases are arranged on each of the two sides of the moving block, one end of each positioning block is abutted against the side wall of the corresponding moving block, and the other end of each positioning block is used for positioning the portal frame;

the cylinder drives the moving block to move, the moving block pushes the positioning block to two sides, and the positioning block positions the portal frame.

The technical scheme has the advantages that the moving block is driven to move through the movement of the air cylinder, the moving block is wedge-shaped, one end of the moving block is wide, and the other end of the moving block is narrow, the small end of the moving block is in contact with the positioning block in the initial state, when the large end of the moving block moves towards the small end direction, the moving block can push the positioning block to move towards two sides, and after the large end of the moving block is in contact with the positioning block, the moving block stops moving, the gantry is tightly propped by the positioning block at the moment, the four positioning blocks move at the same time, the moving distances of the four positioning blocks are the same, the positioning can be more accurate when the gantry is.

Preferably, a piston rod is arranged in the cylinder, the piston rod penetrates through the cylinder and reciprocates in the cylinder, and two ends of the piston rod are respectively connected with the two moving blocks. The piston rod can drive the two moving blocks to move synchronously, so that the positioning block can position the gantry more accurately.

Preferably, the both ends of cylinder are equipped with the mounting panel, the bottom of mounting panel with the top of workstation is connected, and the setting of mounting panel can be with the more firm fixing of cylinder on the workstation, guarantees the stability in the cylinder working process.

Preferably, a connecting rod is arranged between the piston rod and the moving block.

Preferably, a movable joint is arranged at the joint of the connecting rod and the piston rod. The movable joint can bear a part of force, and damage to the piston rod is reduced.

Preferably, the bottom of the moving block is provided with a first sliding block, the top of the moving block base is provided with a first sliding rail, and the first sliding block slides on the first sliding rail.

Preferably, a supporting block is arranged at the contact part of the positioning block and the door frame, an elastic part is arranged on the side wall of the supporting block, and the other end of the elastic part is connected with the side wall of the positioning block base. When the positioning block moves towards the direction of the portal frame, the elastic piece is stretched, after the portal frame is welded, the moving block is driven by the cylinder to restore to the original position, and the positioning block automatically restores to the original position under the action of the elastic piece.

Preferably, the bottom of the positioning block is provided with a second sliding block, the top of the base of the positioning block is provided with a second sliding rail, and the second sliding block slides on the second sliding rail.

Preferably, a rolling shaft is arranged at the contact end of the positioning block and the moving block, and the rolling shaft is in contact with the side wall of the moving block. When the moving block moves, the rolling shaft slides on the surface of the moving block, so that the moving block can move between the two positioning blocks more easily.

According to the technical scheme, compared with the prior art, the invention discloses and provides a forklift gantry welding inner-opening positioning mechanism, which has the beneficial effects that:

(1) according to the invention, the cylinder drives the moving block to move, and the moving block pushes the positioning blocks to move towards two sides, so that the four positioning blocks move simultaneously and move at the same distance, the positioning of the portal frame is more accurate, and the portal frame can be positioned more accurately during welding;

(2) the positioning block can realize automatic reset under the driving of the pulling force of the elastic piece;

(3) the friction force between the moving block and the positioning block can be reduced by the arrangement of the rolling shaft, so that the piston rod can push the moving block more easily, the pushing distance of the moving block to the positioning block is more accurate, and the positioning precision of the gantry is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a front view of a positioning mechanism provided by the present invention;

FIG. 2 is a top view of the positioning mechanism provided by the present invention;

fig. 3 is a left side view of the positioning mechanism provided by the present invention.

Wherein, in the figure,

1-a working platform;

2-a cylinder;

21-a piston rod; 22-a mounting plate;

3-moving block;

31-a first slider;

4-a moving block base;

41-a first slide rail;

5-positioning a block;

51-a support block; 52-a second slide; 53-a roller;

6-positioning block base;

61-a second slide rail;

7-a connecting rod; 8-movable joint.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to 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 those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" 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 specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment of the invention discloses a forklift gantry welding inner opening positioning mechanism, which comprises: the device comprises a workbench 1, a cylinder 2, a moving block 3, a moving block base 4, a positioning block 5 and a positioning block base 6; the cylinder 2, the moving block base 4 and the positioning block base 6 are arranged at the top of the workbench 1; the moving block 3 is wedge-shaped, the number of the moving block 3 and the number of the moving block base 4 are two, and the moving block 3 is arranged at the top of the moving block base 4 and is connected with the moving block base 4 in a sliding mode; the two moving blocks 3 are arranged at two ends of the cylinder 2 and connected with the end part of the cylinder 2, and the arrangement directions of the two moving blocks 3 are the same; the positioning blocks 5 are arranged at the tops of the positioning block bases 6 and are in sliding connection with the positioning block bases 6, four positioning blocks 5 and four positioning block bases 6 are arranged on each of the two sides of the moving block 3, one end of each positioning block 5 is abutted to the side wall of the corresponding moving block 3, and the other end of each positioning block 5 is used for positioning the portal frame; the cylinder 2 drives the moving block 3 to move, the moving block 3 pushes the positioning block 5 to the two sides, and the positioning block 5 positions the portal frame. The portal channel-section steel sets up along the axis direction of connecting rod 7, and arranges the both sides of movable block 3 in, and locating piece 5 extends to the outside and contacts with the portal channel-section steel under the promotion of movable block 3, and two locating pieces 5 of movable block 3 both sides contact with the portal channel-section steel of both sides respectively, and the interval of the portal channel-section steel of both sides is that the interior size of opening a gear of portal is fixed a position to weld the portal. As shown in fig. 2, the large end of the moving block 3 is a large end, the small end is a small end, and the surfaces of the large end and the small end are planes to facilitate the positioning of the positioning block 5 on the moving block 3.

In order to further optimize the technical scheme, a piston rod 21 is arranged in the cylinder 2, the piston rod 21 penetrates through the cylinder 2 and reciprocates in the cylinder 2, and two ends of the piston rod 21 are respectively connected with the two moving blocks 3.

In order to further optimize the above technical solution, the two ends of the cylinder 2 are provided with mounting plates 22, and the bottom of the mounting plates 22 is connected with the top of the working table 1.

In order to further optimize the above technical solution, a connecting rod 7 is provided between the piston rod 21 and the moving block 3.

In order to further optimize the technical scheme, a movable joint 8 is arranged at the joint of the connecting rod 7 and the piston rod 21, and the movable joint 8 is a universal joint.

In order to further optimize the above technical solution, the bottom of the moving block 3 is provided with a first sliding block 31, the top of the moving block base 4 is provided with a first sliding rail 41, and the first sliding block 31 slides on the first sliding rail 41.

In order to further optimize the technical scheme, a supporting block 51 is arranged at the contact part of the positioning block 5 and the door frame, an elastic part is arranged on the side wall of the supporting block 51, the other end of the elastic part is connected with the side wall of the positioning block base 6, and the side wall of the supporting block 51 connected with the elastic part and the side wall of the positioning block base 6 connected with the elastic part are in the same plane. The elastic component selects a tension spring, and the joint of the tension spring and the positioning block base 6 is close to the moving block 3, so that the force borne by the tension spring is larger, and the positioning block 5 is more conveniently reset.

In order to further optimize the above technical solution, the bottom of the positioning block 5 is provided with a second slider 52, the top of the positioning block base 6 is provided with a second slide rail 61, and the second slider 52 slides on the second slide rail 61.

In order to further optimize the technical scheme, a rolling shaft 53 is arranged at the contact end of the positioning block 5 and the moving block 3, and the rolling shaft 53 is in contact with the side wall of the moving block 3. The surface of the positioning block 5, which is in contact with the moving block 3, is provided with a groove, the rolling shaft 53 is arranged in the groove, two ends of the rolling shaft 53 are respectively connected with the top and the bottom of the positioning block 5, the surface of the rolling shaft 53 is abutted against the side wall of the moving block 3, and when the moving block 3 moves, the rolling shaft 53 slides on the surface of the moving block 3.

The working principle is as follows:

starting the cylinder 2, the piston rod 21 moves to drive the connecting rod 7 to move, the connecting rod 7 drives the moving block 3 to move, the moving block 3 slides on the moving block base 4, in an initial state, the small end of the moving block 3 is in contact with the positioning block 5, when the large end of the moving block 5 moves towards the small end, the moving block 3 can push the positioning block 5 to slide on the positioning block base 6, the two positioning blocks 5 move towards the two sides of the moving block 3, after the large end of the moving block 3 is in contact with the positioning block 5, the supporting block 51 props against the gantry channel steel at the moment, the movement is stopped, the gantry is welded, after the welding is completed, the cylinder 2 drives the piston rod 21 to move reversely, the moving block 3 is driven to move, the small end of the moving block 3 moves towards the large end, the positioning block 5 returns to the original.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.