Welding fixing device for welded pipe production

Abstract

The utility model discloses a welding fixing device for welded pipe production, relates to the field of welded pipe production, and aims to solve the problems that in the prior art, an existing welded pipe fixing device supports two welded pipes and cannot move, so that the two welded pipes are inconvenient to butt and adjust, and the welding efficiency is influenced. Guide rails are fixedly connected to the front end and the rear end of the upper end face of the fixed bottom plate correspondingly, first welded pipe supporting pieces are connected to the two sides of the middles of the upper ends of the two guide rails correspondingly, two guide rods are fixedly connected to the front end and the rear end of the upper end of each first welded pipe supporting piece correspondingly, and a lifting plate is jointly connected to the middles of the four guide rods. The front end and the rear end of the middle of the lower end of the lifting plate are each fixedly connected with two rotating connecting pieces, a downward pressing rolling wheel is rotationally connected between the two rotating connecting pieces in each set, and the two sides of the upper ends of the two guide rails are each connected with a second welded pipe supporting piece.

Description

Technical Field

[0001] The utility model relates to the field of welded pipe production, and specifically relates to a welding and fixing device for welded pipe production. Background Technique

[0002] Welded steel pipes, also known as welded pipes, are steel pipes made by welding steel plates or strips after being coiled and formed. The production process of welded steel pipes is simple, with high production efficiency, a variety of product specifications, and low equipment investment. However, generally, their strength is lower than that of seamless steel pipes. The process flow of welded pipes is: raw material uncoiling - leveling - end shearing and welding - loop - forming - welding - removal of internal and external weld beads - pre-correction - induction heat treatment - sizing and straightening - eddy current testing - cutting - hydrostatic inspection - pickling - final inspection (strict quality control) - packaging - shipment.

[0003] The authorized announcement number is CN 212918295 U, a welding and fixing device for welded pipe production, which includes a base, a transparent cover, an opening, a support base, a moving device, and a fixing device. The transparent cover is arranged on the base, the opening is arranged on the transparent cover, the support base is arranged on the base, the moving device is arranged on the support base, the moving device includes a screw rod, a handle, a connecting rod, and an annular plate, and the fixing device includes a rotary fixing ring, a fixing plate, a motor, a transmission shaft, a support plate, a driving hydraulic rod, and a clamping plate. The utility model belongs to the technical field of welding and fixing devices, and specifically refers to a welding and fixing device for welded pipe production, which effectively solves the problems that the existing welding and fixing devices are not firm enough and the welded pipes cannot be moved in the current market, realizes more stable fixing of welded pipes, can move and rotate the welded pipes, makes the welding effect of the welded pipes better, and improves the production efficiency. It is a very practical welding and fixing device for welded pipe production.

[0004] The existing welded pipe fixing devices all support two welded pipes and cannot be moved, making it inconvenient to butt and adjust the two welded pipes and affecting the welding efficiency. Therefore, there is an urgent need in the market to develop a welding and fixing device for welded pipe production to help people solve the existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a welding and fixing device for welded pipe production, so as to solve the problem in the above background technique that the existing welded pipe fixing devices all support two welded pipes and cannot be moved, making it inconvenient to butt and adjust the two welded pipes and affecting the welding efficiency.

[0006] To achieve the above object, the utility model provides the following technical solution: A welding and fixing device for welded pipe production, including a fixed bottom plate. Both the front and rear ends of the upper end surface of the fixed bottom plate are fixedly connected with guide rails. Both sides of the middle part of the upper ends of the two guide rails are connected with first welded pipe support members. A first welded pipe placement groove is arranged at the upper end of the first welded pipe support member. A first connection groove is arranged at the upper end inside the first welded pipe support member. A plurality of first support rollers are rotatably connected inside the first connection groove. Both the front and rear ends of the upper end of the first welded pipe support member are fixedly connected with two guide rods. The upper ends of the four guide rods are commonly fixedly connected with a support plate. A hydraulic device is fixedly arranged in the middle of the upper end of the support plate. The middle parts of the four guide rods are commonly connected with a lifting plate. Both the front and rear ends of the middle part of the lower end of the lifting plate are fixedly connected with two rotating connectors. A pressing roller is rotatably connected between each group of two rotating connectors. Both sides of the upper ends of the two guide rails are connected with second welded pipe support members. A second welded pipe placement groove is arranged at the upper end of the second welded pipe support member. A second connection groove is arranged at the upper end inside the second welded pipe support member. A plurality of second support rollers are rotatably connected inside the second connection groove.

[0007] Preferably, both the front and rear ends of the lower end of the first welded pipe support member are fixedly connected with first sliders. The two first sliders are respectively movably connected with the two guide rails. A first slider driving device is fixedly connected to the front first slider.

[0008] Preferably, the upper end of each first support roller extends into the first welded pipe placement groove.

[0009] Preferably, the telescopic end of the hydraulic device passes through the middle of the support plate and is fixedly connected with the upper end surface of the lifting plate.

[0010] Preferably, two through holes are arranged at both the front and rear ends of the lifting plate. The four guide rods respectively pass through the four through holes on the lifting plate. The pressing roller is rotatably connected between the two rotating connectors through a rotating shaft.

[0011] Preferably, both the front and rear ends of the lower end of the second welded pipe support member are fixedly connected with second sliders. The two second sliders are respectively movably connected with the two guide rails. A second slider driving device is fixedly connected to the front second slider.

[0012] Preferably, the upper end of each second support roller extends into the second welded pipe placement groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In this utility model, through the arrangement of the first welded pipe support and the second welded pipe support, one end of each of the two welded pipes to be welded passes through the first welded pipe placement grooves on the two first welded pipe supports respectively, and multiple first support rollers support the welded pipes. Then, the hydraulic device is started, and its telescopic end drives the lifting plate to descend, so that the two pressing rollers press the front and rear ends of the middle part of the upper end of the welded pipes respectively, realizing the clamping and limiting of the welded pipes. Next, the middle parts of both welded pipes pass through the second welded pipe placement grooves on the second welded pipe support, and the middle parts of the welded pipes are supported by multiple second support rollers. By synchronously moving the first welded pipe support and the second welded pipe support on one side of the guide rail (driven by the first slider driving device and the second slider driving device), one end of the welded pipe on one side is driven to move towards one end of the other welded pipe, realizing the butt joint of the welding ends of the two welded pipes, which can conveniently achieve the accurate butt joint and fixation of the two welded pipes, providing convenience for subsequent welding operations.

[0015] 2. In this utility model, through the arrangement of the guide rods, two guide rods are fixedly connected to the front and rear ends of the upper end of the first welded pipe support respectively. Two through holes are arranged at the front and rear ends of the lifting plate respectively, and the four guide rods pass through the interiors of the four through holes on the lifting plate respectively. The four guide rods guide the movement of the lifting plate, ensuring the stability of the movement of the lifting plate.

[0016] 3. In this utility model, through the arrangement of the guide rails, the first sliders are fixedly connected to the front and rear ends of the lower end of the first welded pipe support respectively, and the two first sliders are movably connected to the two guide rails respectively. The second sliders are fixedly connected to the front and rear ends of the lower end of the second welded pipe support respectively, and the two second sliders are movably connected to the two guide rails respectively. By adjusting the distance between the first welded pipe support and the second welded pipe support, it is convenient to weld welded pipes of different lengths. Description of the Drawings

[0017] Figure 1 is the front view of a welding and fixing device for welded pipe production of the present utility model;

[0018] Figure 2 is the side view of the present utility model;

[0019] Figure 3 is the main sectional view of the present utility model;

[0020] Figure 4 is the side sectional view of the first welded pipe support of the present utility model.

[0021] In the figure: 1. Fixed bottom plate; 101. Guide rail; 2. First welded pipe support; 201. First slider; 202. First slider driving device; 203. First welded pipe placement groove; 204. First connection groove; 205. First support roller; 206. Guide rod; 3. Support plate; 301. Hydraulic device; 4. Lifting plate; 401. Through hole; 402. Rotating connecting piece; 403. Pressing roller; 404. Rotating shaft; 5. Second welded pipe support; 501. Second slider; 502. Second slider driving device; 503. Second welded pipe placement groove; 504. Second connection groove; 505. Second support roller. Specific implementation mode

[0022] 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.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present invention: A welding and fixing device for welded pipe production, including a fixed bottom plate 1. Both the front and rear ends of the upper end surface of the fixed bottom plate 1 are fixedly connected with guide rails 101. Both sides of the middle part of the upper ends of the two guide rails 101 are connected with a first welded pipe support 2. A first welded pipe placement groove 203 is arranged at the upper end of the first welded pipe support 2. A first connection groove 204 is arranged at the upper end inside the first welded pipe support 2. A plurality of first support rollers 205 are rotatably connected inside the first connection groove 204. Both the front and rear ends of the upper end of the first welded pipe support 2 are fixedly connected with two guide rods 206. The upper ends of the four guide rods 206 are commonly fixedly connected with a support plate 3. A hydraulic device 301 is fixedly arranged at the middle part of the upper end of the support plate 3. The middle parts of the four guide rods 206 are commonly connected with a lifting plate 4. Both the front and rear ends of the middle part of the lower end of the lifting plate 4 are fixedly connected with two rotating connecting pieces 402. A pressing roller 403 is rotatably connected between each group of two rotating connecting pieces 402. Both sides of the upper ends of the two guide rails 101 are connected with a second welded pipe support 5. A second welded pipe placement groove 503 is arranged at the upper end of the second welded pipe support 5. A second connection groove 504 is arranged at the upper end inside the second welded pipe support 5. A plurality of second support rollers 505 are rotatably connected inside the second connection groove 504.

[0024] Furthermore, both the front and rear ends of the lower end of the first welded pipe support 2 are fixedly connected with a first slider 201. The two first sliders 201 are respectively movably connected with the two guide rails 101. A first slider driving device 202 is fixedly connected to the front first slider 201. The first slider 201 is driven by the first slider driving device 202 to move on the guide rail 101, so that the first welded pipe support 2 moves horizontally on the two guide rails 101.

[0025] Furthermore, the upper end of each first support roller 205 extends into the first welded pipe placement groove 203. One end of each of the two welded pipes to be welded passes through the first welded pipe placement grooves 203 on the two first welded pipe support members 2 respectively, and the multiple first support rollers 205 support the welded pipes.

[0026] Furthermore, the telescopic end of the hydraulic device 301 passes through the middle of the support plate 3 and is fixedly connected to the upper end surface of the lifting plate 4. The hydraulic device 301 drives the lifting plate 4 to move up and down.

[0027] Furthermore, two through holes 401 are provided at both the front and rear ends of the lifting plate 4. The four guide rods 206 respectively pass through the four through holes 401 on the lifting plate 4. The pressing roller 403 is rotatably connected between the two rotating connectors 402 through the rotating shaft 404. The four guide rods 206 guide the movement of the lifting plate 4 to ensure the stability of the movement of the lifting plate 4. After one end of the welded pipe passes through the first welded pipe placement groove 203, the hydraulic device 301 pushes the lifting plate 4 downward, so that the two pressing rollers 403 respectively press the middle parts of the front and rear ends of the upper end of the welded pipe, realizing the clamping and limiting of the welded pipe.

[0028] Furthermore, second sliders 501 are fixedly connected to both the front and rear ends of the lower end of the second welded pipe support member 5. The two second sliders 501 are respectively movably connected with the two guide rails 101. A second slider driving device 502 is fixedly connected to the front second slider 501. The second slider driving device 502 drives the second slider 501 to move on the guide rail 101, and further enables the second welded pipe support member 5 to move horizontally on the two guide rails 101.

[0029] Furthermore, the upper end of each second support roller 505 extends into the second welded pipe placement groove 503. The middle parts of the two welded pipes both pass through the second welded pipe placement groove 503. The multiple second support rollers 505 support the middle parts of the welded pipes. After the first welded pipe support member 2 and the second welded pipe support member 5 on both sides of the guide rail 101 respectively support the two welded pipes, by synchronously moving the first welded pipe support member 2 and the second welded pipe support member 5 on one side of the guide rail 101, one end of the welded pipe on one side is driven to move towards one end of the other welded pipe, realizing the butt joint of the welding ends of the two welded pipes.

[0030] Working principle: When in use, first, one end of each of the two welding pipes to be welded is respectively passed through the first welding pipe placement grooves 203 on the two first welding pipe supports 2, and the plurality of first support rollers 205 support the welding pipes. Then, the hydraulic device 301 is started, and its telescopic end drives the lifting plate 4 to descend, so that the two pressing rollers 403 respectively press the front and rear ends of the middle part of the upper end of the welding pipe, realizing the clamping and limiting of the welding pipe. Next, the middle parts of the two welding pipes are both passed through the second welding pipe placement grooves 503 on the second welding pipe support 5, and the plurality of second support rollers 505 support the middle parts of the welding pipes. At this time, by synchronously moving the first welding pipe support 2 and the second welding pipe support 5 on one side of the guide rail 101 (driven by the first slider driving device 202 and the second slider driving device 502), driving one end of the welding pipe on one side to move towards one end of the other welding pipe, the butt joint of the welding ends of the two welding pipes is realized, and the accurate butt joint and fixation of the two welding pipes can be conveniently achieved, providing convenience for subsequent welding operations.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A welding fixing device for welded pipe production, comprising a fixed bottom plate (1), characterized in that: Both the front and rear ends of the upper end face of the fixed bottom plate (1) are fixedly connected with guide rails (101). On both sides of the middle part of the upper ends of the two guide rails (101), a first welded pipe support member (2) is connected. A first welded pipe placement groove (203) is provided at the upper end of the first welded pipe support member (2). A first connection groove (204) is provided at the upper part inside the first welded pipe support member (2). A plurality of first support rollers (205) are rotatably connected inside the first connection groove (204). At the front and rear ends of the upper end of the first welded pipe support member (2), two guide rods (206) are fixedly connected respectively. The upper ends of the four guide rods (206) are fixedly connected together with a support plate (3). A hydraulic device (301) is fixedly arranged in the middle of the upper end of the support plate (3). The middle parts of the four guide rods (206) are jointly connected with a lifting plate (4). At the front and rear ends of the middle part of the lower end of the lifting plate (4), two rotating connectors (402) are fixedly connected respectively. A pressing roller (403) is rotatably connected between each group of two rotating connectors (402). On both sides of the upper ends of the two guide rails (101), a second welded pipe support member (5) is connected. A second welded pipe placement groove (503) is provided at the upper end of the second welded pipe support member (5). A second connection groove (504) is provided at the upper part inside the second welded pipe support member (5). A plurality of second support rollers (505) are rotatably connected inside the second connection groove (504).

2. The welding and fixing device for welded pipe production according to claim 1, wherein: At the front and rear ends of the lower end of the first welded pipe support member (2), first sliders (201) are fixedly connected respectively. The two first sliders (201) are movably connected with the two guide rails (101) respectively. A first slider driving device (202) is fixedly connected to the front first slider (201).

3. A welding and fixing device for welded pipe production according to claim 1, characterized in that: The upper end of each first support roller (205) extends into the first welded pipe placement groove (203).

4. A welding and fixing device for welded pipe production according to claim 1, wherein: The telescopic end of the hydraulic device (301) passes through the middle of the support plate (3) and is fixedly connected to the upper end face of the lifting plate (4).

5. A welding and fixing device for welded pipe production according to claim 1, characterized in that: Two through holes (401) are provided at the front and rear ends of the lifting plate (4). The four guide rods (206) respectively pass through the four through holes (401) on the lifting plate (4). The pressing roller (403) is rotatably connected between the two rotating connectors (402) through a rotating shaft (404).

6. The welding and fixing device for welded pipe production according to claim 1, characterized in that: At the front and rear ends of the lower end of the second welded pipe support member (5), second sliders (501) are fixedly connected respectively. The two second sliders (501) are movably connected with the two guide rails (101) respectively. A second slider driving device (502) is fixedly connected to the front second slider (501).

7. A welding and fixing device for welded pipe production according to claim 1, characterized in that: The upper end of each second support roller (505) extends into the second welded pipe placement groove (503).

Images