Assembling and welding device for middle frame of belt conveyor

Abstract

The utility model belongs to the technical field of tool clamps, and particularly relates to a belt conveyor middle frame assembling and welding device. Comprising a middle frame and a tool, the tool comprises a lower plate arranged above a bottom plate, and a sliding groove and a positioning hole are formed in the lower plate; the positioning piece is arranged in the positioning hole; a sliding block is arranged at the bottom of the sliding piece and drives the sliding piece to be arranged on the sliding groove in a sliding mode, and guide holes are formed in the two sides of the sliding piece. The upper plate assembly comprises an upper plate and two groups of guide plates, and a positioning part is arranged on the upper plate; the bottom end of the guide plate is connected with the lower plate, and a guide long hole is formed in the guide plate; one end of the guide shaft is fixedly connected with the guide hole, and the other end is slidably arranged in the guide long hole. Compared with an original positioning mode of a simple movable positioning block and a manual pin shaft inserting and pulling mode, the tool has the advantages of being accurate in positioning, simple and convenient to operate, efficient and the like, and the problems of inaccurate positioning, size position deviation and the like caused by positioning failure due to collision, vibration or workpiece movement are not prone to occurring.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling fixtures, and particularly relates to a welding device for intermediate frames of belt conveyors. Background Art

[0002] The telescopic belt conveyor is the main equipment for transporting raw coal underground. As the fully mechanized mining face advances, the telescopic belt conveyor extends its length by quickly lengthening the machine body to match the production requirements. The intermediate frame is the main connecting component of the machine body part, and the quantity in a single belt conveyor is large.

[0003] The intermediate frame is formed by welding a channel steel and a connecting plate ( Figure 1 is a partial schematic diagram of the intermediate frame). There are three holes on the channel steel corresponding to the connecting plate, two large and one small, for connecting with the E-shaped pin and the idler bracket. When welding the channel steel and the connecting plate, it is necessary to ensure that the upper and lower holes are concentric and the fixed height of the connecting plate in the groove. The commonly used measures at present are as follows: First, place a simple movable positioning block in the groove to determine the height of the connecting plate, then manually insert and remove the pin shaft to ensure that the upper and lower holes are concentric, and finally cooperate with a semi-automatic welding robot for welding. Because there is no precise and efficient positioning tooling, the size deviation of the processed products is large, the product qualification rate is low, resulting in waste of labor and materials, increasing the production cost, and it is not easy to separate the tooling from the workpiece due to welding deformation after welding. Summary of the Invention

[0004] The utility model aims to solve the problems of inaccurate positioning and inconvenient operation in the prior art, and provides a welding device for intermediate frames of belt conveyors.

[0005] The utility model is realized by adopting the following technical scheme: A welding device for intermediate frames of belt conveyors includes an intermediate frame and tooling. The tooling is arranged inside the intermediate frame. The intermediate frame includes a C-shaped groove member and a connecting plate. The C-shaped groove member is composed of a bottom plate and two vertical plates arranged on the bottom plate. A plurality of first mounting holes are arranged on the bottom plate along the center line. A connecting plate is welded to one end of the two vertical plates far away from the bottom plate. A plurality of second mounting holes corresponding to the first mounting holes are arranged on the connecting plate. The tooling includes:

[0006] A lower plate is arranged above the bottom plate. A chute and positioning holes are arranged on the lower plate. The positioning holes correspond to the first mounting holes. The first mounting holes, the positioning holes and the second mounting holes are coaxially arranged from bottom to top;

[0007] A positioning member is arranged in the positioning holes;

[0008] A sliding member is provided with a slider at the bottom. The slider drives the sliding member to slide on the chute. Guide holes are arranged on both sides of the sliding member;

[0009] The upper plate assembly is arranged between the lower plate and the connecting plate, and includes an upper plate and two groups of guide plates. A positioning portion coaxial with the second mounting hole is provided on the upper plate; the guide plates are vertically arranged on both sides of the upper plate, the bottom ends of the guide plates are connected to the lower plate, and guide long holes are formed in the guide plates and are arranged in an upwardly inclined manner;

[0010] The guide shaft has one end fixedly connected to the guide hole and the other end slidably arranged in the guide long hole.

[0011] Optionally, a plug-in groove is formed in the long side of the lower plate, and the bottom end of the guide plate is plugged into the plug-in groove.

[0012] Optionally, there are two groups of sliding grooves. The sliding grooves are dovetail sliding grooves, the sliding blocks are dovetail-shaped sliding blocks corresponding to the sliding grooves, and the positioning holes are arranged between the two groups of sliding grooves.

[0013] Optionally, the positioning portion is funnel-shaped, with a cylinder at the bottom and a conical protrusion at the top, and the diameter of the cylinder is greater than or equal to the diameter of the second mounting hole.

[0014] Optionally, the positioning member is a sphere with a diameter larger than the diameter of the positioning hole.

[0015] Optionally, a handle is provided at one end of the sliding member.

[0016] Advantages of the present utility model:

[0017] In the present utility model, the first mounting hole is positioned by the gravity action of the positioning member. The slider slides in the sliding groove, and the guide shafts on both sides of the slider slide in the guide long hole, thereby driving the up and down movement of the upper plate assembly to position the second mounting hole. Compared with the original positioning methods of simple movable positioning blocks and manually inserting and pulling out pin shafts, this tooling has the characteristics of accurate positioning, simple operation, high efficiency, etc., and is not prone to positioning failure due to collision, vibration or moving the workpiece, resulting in inaccurate positioning and dimensional position deviation and other problems. After welding is completed, this tooling can be easily disengaged from the workpiece and taken out easily. Fundamentally solve the problem that the tooling cannot be taken out due to welding deformation. Description of the drawings

[0018] Figure 1 is a schematic structural diagram of the intermediate frame of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the tooling of the present utility model when it is located in the intermediate frame;

[0020] Figure 3 is an exploded view of the present utility model;

[0021] Figure 4 is a schematic diagram of the working positioning state of the tooling in the workpiece;

[0022] Figure 5It is a schematic diagram of the state where the tooling is loosened and detached from the workpiece.

[0023] Among them:

[0024] 1. C-groove member; 101. First mounting hole; 102. Bottom plate; 103. Vertical plate; 2. Connecting plate; 201. Second mounting hole; 3. Lower plate; 301. Positioning hole; 302. Chute; 303. Insertion slot; 4. Upper plate assembly; 401. Guide long hole; 402. Positioning part; 403. Upper plate; 404. Guide plate; 5. Sliding part; 501. Guide hole; 502. Slide block; 503. Handle; 6. Positioning part; 7. Guide shaft. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] As Figure 1 shown, the present invention provides a belt conveyor intermediate frame assembly welding device, including an intermediate frame and tooling. The tooling is arranged inside the intermediate frame. The structure of the intermediate frame is as Figure 1 shown, including a C-groove member 1 and a connecting plate 2. The C-groove member 1 includes a bottom plate and two vertical plates 103 vertically arranged on the bottom plate 102. A plurality of first mounting holes 101 are arranged along the center line of the bottom plate 102. Connecting plates 2 are welded to the ends of the two vertical plates away from the bottom plate. A plurality of second mounting holes 201 corresponding to the first mounting holes 101 are arranged on the connecting plate 2.

[0027] The structure of the tooling in this embodiment is as Figure 2 and Figure 3As shown in the figure, the tooling includes a lower plate 3, a positioning member 6, a sliding member 5, an upper plate assembly 4, and a guide shaft 7. Among them, the lower plate 3 is arranged above the bottom plate 102. A chute 302 and a positioning hole 301 are provided on the lower plate 3. The positioning hole 301 corresponds to the first mounting hole 101. The first mounting hole 101, the positioning hole 301, and the second mounting hole 201 are coaxially arranged from bottom to top. The positioning member 6 is arranged in the positioning hole 301. A slider 502 is provided at the bottom of the sliding member 5. The slider 502 drives the sliding member 5 to slide on the chute 302. Guide holes 501 are provided on both sides of the sliding member 5. The upper plate assembly is arranged between the lower plate 3 and the connecting plate 2, and includes an upper plate 403 and two groups of guide plates 404. A positioning portion 402 coaxial with the second mounting hole 201 is provided on the upper plate 403. The guide plates 404 are vertically arranged on both sides of the upper plate 403. The bottom end of the guide plate 404 is connected to the lower plate 3. A guide long hole 401 is provided on the guide plate 404 and is inclined upward. One end of the guide shaft 7 is fixedly connected to the guide hole 501, and the other end slides in the guide long hole 401.

[0028] Among them, the positioning portion 402 is funnel-shaped, with a cylindrical bottom and a conical protrusion at the top. The diameter of the cylinder is greater than or equal to the diameter of the second mounting hole 201.

[0029] In an implementation manner, the positioning member 6 is a sphere with a diameter larger than the diameter of the positioning hole 301.

[0030] As Figure 3 、 Figure 4 shown in the figure, there are two groups of chutes 302. The chutes 302 are dovetail chutes 302. The slider 502 is a dovetail-shaped slider 502 corresponding to the chute 302. The positioning hole 301 is arranged between the two groups of chutes 302. A handle 503 is provided at one end of the sliding member 5.

[0031] As Figure 4 、 Figure 5 shown in the figure, the specific connection method between the lower plate 3 and the guide plate 404 is: a plug-in groove 303 is provided on the long side of the lower plate 3, and the bottom end of the guide plate 404 is plugged into the plug-in groove 303.

[0032] The working method is as follows: The tooling is integrally placed in the C-shaped groove member 1 for positioning. When the positioning holes 301 on the lower plate 3 are coaxial with the first mounting holes 101, the positioning member 6 descends under its own weight. The diameter of the exposed part of the positioning member 6 when it descends is exactly the same as the diameter of the first mounting hole 101. One-third of the sphere falls into the first mounting hole 101, playing a positioning role. Pull the handle 503 to make the slider 502 slide in the chute 302. The slider 502 drives the guide shaft 7 to move in the guide long hole 401. Since the height of the guide shaft 7 is fixed, the upper plate 403 is driven to rise. The two ends of the guide long hole 401 of the guide plate 404 are the lifting limits. Push to the leftmost hole position, and the rising height of the upper plate 403 is in place. At this time, only a small part of the guide plate 404 is located in the insertion groove 303. Place the connecting plate 2. The second mounting hole 201 provided on the connecting plate 2 passes through the positioning portion 402 and is placed on the surface of the upper plate 403. At this time, the height and position of the connecting plate 2 are already positioned( Figure 4 ), and finally cooperate with the automatic welding robot for welding to complete the assembly welding work of the intermediate frame.

[0033] After the assembly welding is completed and the tooling needs to be taken out, the slider 502 can be pulled to the right. The upper plate 403 starts to descend driven by the guide shaft 7. When the guide shaft 7 slides to the right end hole position of the guide long hole 401, the upper surface of the tooling disengages from the connecting plate 2 and descends to the lowest position. At this time, the bottom of the guide plate 404 is flush with the bottom of the lower plate 3, completing the entire positioning and welding work. Finally, pull the intermediate frame welding tooling through the pull rod, so that the positioning member 6 also retracts into the positioning hole 301 under the action of the lateral force( Figure 5 ), and the whole tooling is pulled out from the intermediate frame for the positioning and welding of the next intermediate frame.

[0034] Compared with the existing simple movable positioning block and the positioning method of manually inserting and pulling out the pin shaft, the utility model has the characteristics of accurate positioning, simple operation, high efficiency, etc., and is not easy to have problems such as positioning failure, inaccurate positioning and dimensional position deviation due to collision, vibration or moving the workpiece. After welding is completed, the tooling can be easily disengaged from the workpiece and taken out easily. It fundamentally solves the problem that the tooling cannot be taken out due to welding deformation. As a full-contact rigid support positioning, it can also effectively control welding deformation. By using this tooling, the consistency and standardization of the assembly welded structural parts can be guaranteed. Greatly improve the welding efficiency of the intermediate frame. The tooling has a novel structure, delicate design and low manufacturing cost, which is conducive to the promotion and application on site.

Claims

1. A belt conveyor intermediate frame group welding device, characterized in that, It includes an intermediate frame and a tooling. The tooling is arranged inside the intermediate frame. The intermediate frame includes a C-shaped groove member (1) and a connecting plate (2). The C-shaped groove member (1) is composed of a bottom plate (102) and two vertical plates (103) arranged on the bottom plate (102). A number of first mounting holes (101) are arranged along the center line of the bottom plate (102). Connecting plates (2) are welded to the ends of the two vertical plates (103) away from the bottom plate (102). A number of second mounting holes (201) are arranged on the connecting plate (2) corresponding to the first mounting holes (101). The tooling includes: A lower plate (3) is arranged above the bottom plate (102). A chute (302) and a positioning hole (301) are arranged on the lower plate (3). The positioning hole (301) is arranged corresponding to the first mounting hole (101). The first mounting hole (101), the positioning hole (301), and the second mounting hole (201) are coaxially arranged from bottom to top. A positioning member (6) is arranged in the positioning hole (301). A sliding member (5) has a slider (502) at the bottom. The slider (502) drives the sliding member (5) to slide on the chute (302). Guide holes (501) are arranged on both sides of the sliding member (5). An upper plate assembly (4) is arranged between the lower plate (3) and the connecting plate (2), including an upper plate (403) and two groups of guide plates (404). A positioning portion (402) coaxial with the second mounting hole (201) is arranged on the upper plate (403). The guide plates (404) are vertically arranged on both sides of the upper plate (403). The bottom ends of the guide plates (404) are connected to the lower plate (3). Guide long holes (401) inclined upward are arranged on the guide plates (404). A guide shaft (7) has one end fixedly connected to the guide hole (501) and the other end slidably arranged in the guide long hole (401).

2. The welding device for the intermediate frame of a belt conveyor according to claim 1, characterized in that A plug-in groove (303) is arranged on the long side of the lower plate (3). The bottom ends of the guide plates (404) are plugged into the plug-in groove (303).

3. The intermediate frame assembly welding device for a belt conveyor according to claim 1, characterized in that, Two groups of chutes (302) are arranged. The chutes (302) are dovetail chutes (302). The sliders (502) are dovetail-shaped sliders (502) corresponding to the chutes (302). The positioning hole (301) is arranged between the two groups of chutes (302).

4. A welding device for the intermediate frame of a belt conveyor according to claim 1, characterized in that The positioning portion (402) is funnel-shaped, with a cylinder at the bottom and a conical protrusion at the top. The diameter of the cylinder is greater than or equal to the diameter of the second mounting hole (201).

5. The welding device for the intermediate frame of a belt conveyor according to claim 1, characterized in that, The positioning member (6) is a sphere with a diameter larger than the diameter of the positioning hole (301).

6. The welding device for the intermediate frame of a belt conveyor according to claim 1, characterized in that, A handle (503) is arranged at one end of the sliding member (5).

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