Semi-automatic welding machine

Abstract

The utility model discloses a semi-automatic welding machine, which comprises a hydraulic cylinder, a cross rod and a plurality of pipe clamps, the plurality of pipe clamps are averagely divided into two groups, one group is mounted on a piston rod of the hydraulic cylinder to form a static pipe clamp, the other group is mounted on a rod barrel of the hydraulic cylinder to form a movable pipe clamp, and a fixing device is jointly mounted on two adjacent pipe clamps of the static pipe clamp and the movable pipe clamp. The fixing device comprises a movable middle plate and a movable buckle, a groove is formed in the top of the movable middle plate, the movable buckle is installed on the side wall of the groove, two sliding grooves are formed in the movable middle plate and distributed in the two sides of the groove, clamping grooves are formed in the adjacent ends of the two sliding grooves, and sliding rods are connected to the static pipe clamp and the movable pipe clamp. When the static pipe clamp and the movable pipe clamp move relatively, the sliding rod moves in the sliding groove till the sliding rod moves into the clamping groove and limits movement of the movable middle plate, and at the moment, the cutter or the welding cake is rotated, so that the cutter or the welding cake is clamped in the groove and then fixed through the movable buckle, and therefore the cutter and the welding cake are prevented from jumping in the action process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of plastic pipeline welding equipment technical field, more specifically, it relates to a kind of semi-automatic welding machine. BACKGROUND

[0002] The welding machine is used for hot melting and extruding two pipe sections to be integrated, which comprises a support, a cutter, a welding cake and a hydraulic cylinder. The hydraulic cylinder is horizontally arranged, and both the piston rod of the hydraulic cylinder and the hydraulic cylinder body are provided with two pipe clamps. The support comprises a horizontal bar arranged in parallel with the hydraulic cylinder. The cutter and the welding cake are generally connected to the horizontal bar and can rotate around the connected horizontal bar. However, the traditional welding machine does not have a fixing device for the cutter and the welding cake. If the welding machine shakes during operation, the cutter and the welding cake can easily move up and down between the two pipes, affecting the welding effect. SUMMARY

[0003] The utility model aims to provide a semi-automatic welding machine to solve the above problems.

[0004] The utility model discloses a technical scheme to solve the technical problems:

[0005] A semi-automatic welding machine comprises pipe clamps, a horizontal bar and a hydraulic cylinder. The horizontal bar is arranged in parallel with the hydraulic cylinder. The pipe clamps are arranged in multiple and installed on the horizontal bar and the hydraulic cylinder. The multiple pipe clamps are evenly divided into two groups. One group is installed on the piston rod of the hydraulic cylinder to become static pipe clamps, and the other group is installed on the cylinder barrel of the hydraulic rod to become dynamic pipe clamps. The two pipe clamps adjacent to the static pipe clamps and the dynamic pipe clamps are jointly provided with a fixing device. The fixing device comprises a movable middle plate and a movable buckle installed on the movable middle plate. The movable middle plate is arranged in a convex shape, and a groove is formed in the middle of the top. The movable buckle is installed on the side wall of the groove. Two symmetrical grooves are formed in the movable middle plate, and the two grooves are arranged on both sides of the groove. One end of each groove is provided with a clamping groove. The static pipe clamps and the dynamic pipe clamps are connected with sliding rods for sliding in the two grooves, respectively.

[0006] Preferably, the movable buckle comprises a lock tongue, a compression spring and a push piece. One end of the lock tongue is connected with the compression spring, and the other end of the compression spring is provided with a tightness adjuster. A push plate is arranged at the position where the lock tongue is connected with the compression spring. The push piece is hinged with the movable middle plate through a shaft pin, and the free end of the push piece is used to abut against the push plate.

[0007] Preferably, the pipe clamp is composed of an upper pipe clamp and a lower pipe clamp, one end of the upper pipe clamp is pivotally connected with one end of the lower pipe clamp, the other end of the lower pipe clamp is pivotally connected with a locking bolt with a locking nut, the other end of the upper pipe clamp is provided with an opening slot for the locking bolt to turn into, and the locking nut abuts against the top end of the opening slot when the upper pipe clamp and the lower pipe clamp are closed.

[0008] Preferably, the inner side of the two ends of the lower pipe clamp is outwardly inclined to form a containing area, the inner side of the two ends of the upper pipe clamp is provided with a reinforcing block for being inserted into the containing area, and the inner wall of the reinforcing block is arc-shaped and coaxial with the arc of the pipe clamp.

[0009] The rotating radius of the corner of the reinforcing block plus the radius of the pipe clamp is equal to or less than the distance from the rotating center of the reinforcing block to the center of the pipe clamp.

[0010] Preferably, one end of the slide rod is provided with external threads for being threadedly connected with the pipe clamp, the other end of the slide rod is integrally provided with a flange, and the end is provided with an internal hexagonal groove.

[0011] Preferably, a roller is sleeved on the slide rod.

[0012] Preferably, the hydraulic cylinder and the cross rod are installed on a support, and the support is installed on a vehicle body with a hub.

[0013] The pipe clamp and the pipe clamp are relatively moved, the slide rod moves in the sliding groove until the slide rod moves into the clamping groove and limits the movement of the movable middle plate, at this time, the cutting knife or the welding cake is rotated and clamped in the groove, and then is fixed through the movable buckle, so that the cutting knife and the welding cake are prevented from jumping during the action. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of a semi-automatic welding machine;

[0015] Figure 2 It is a schematic view of a movable buckle;

[0016] Figure 3 It is a schematic view of a pipe clamp Figure 1 ;

[0017] Figure 4 It is a schematic view of a pipe clamp Figure 2 ;

[0018] In the drawings: 1, pipe clamp; 11, upper pipe clamp; 111, reinforcing block; 12, lower pipe clamp; 2, cross rod; 3, hydraulic cylinder; 4, movable pipe clamp; 5, static pipe clamp; 6, movable buckle; 61, locking tongue; 62, compression spring; 63, push piece; 64, push plate; 65, tightness adjuster; 7, movable middle plate; 71, groove; 72, sliding groove; 73, clamping groove; 8, slide rod; 9, locking bolt. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0021] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0022] according to Figures 1-4 As shown, a semi-automatic welding machine includes a pipe clamp 1, a cross bar 2 and a hydraulic cylinder 3. The cross bar 2 is arranged parallel to the hydraulic cylinder 3 and spaced apart. There are multiple pipe clamps 1, and all are installed on the cross bar 2 and the hydraulic cylinder 3. The multiple pipe clamps 1 are evenly divided into two groups. One group is installed on the piston rod of the hydraulic cylinder 3 to become a static pipe clamp 5, and the other is installed on the lever barrel of the hydraulic rod to become a dynamic pipe clamp 4. The static pipe clamp 5 and the two adjacent pipe clamps 1 of the dynamic pipe clamp 4 are jointly installed with a fixing device, and the fixing device includes a movable plate 7 and a movable buckle 6 installed on the movable plate 7. The movable plate 7 is arranged in a convex shape, and a groove 71 is opened in the middle position of its top. The movable buckle 6 is installed on the side wall of the groove 71. Two symmetrical sliding grooves 72 are opened on the movable plate 7, and the two sliding grooves 72 are distributed on both sides of the groove 71. A card slot 73 is provided at one end of the two sliding grooves 72. The static pipe clamp 5 and the dynamic pipe clamp 4 are both connected with a sliding rod 8 for sliding in the two sliding grooves 72 respectively.

[0023] according to Figures 1-4 As shown, when the hydraulic cylinder 3 is used to move the static pipe clamp 5 and the dynamic pipe clamp 4 relative to each other, the cross bar 2 is connected to the bracket to fix and support the pipe clamp 1, and the slide bar 8 moves in the slide groove 72 until the slide bar 8 moves into the card slot 73 and limits the movement of the movable middle plate 7. At this time, the cutter or welding cake is rotated so that the cutter or welding cake is engaged in the groove 71, and then fixed by the movable buckle 6, thereby preventing the cutter and welding cake from jumping during operation.

[0024] according to Figure 2As shown, the movable buckle 6 comprises a lock tongue 61, a compression spring 62 and a push piece 63. The lock tongue 61 is inserted into one end of the movable middle plate 7 and connected with the compression spring 62. The other end of the compression spring 62 is provided with a tightness adjuster 65. The position where the lock tongue 61 is connected with the compression spring 62 is provided with a push plate 64. The push piece 63 is hingedly connected with the movable middle plate 7, and the free end of the push piece 63 is used to abut against the push plate 64.

[0025] According to Figure 2 As shown, the free end of the lock tongue 61 protrudes into the groove 71 under the action of the compression spring 62, and is used to lock and fix the cutter or the welding cake. The outer contour of the cutter and the welding cake is formed by a support frame made of aluminum material. The bottom of the support clamp is provided in a T shape, and is convenient for cooperation with the lock tongue 61. When it is needed to remove the cutter or the welding cake, the push plate 64 is pressed against the compression spring 62 by rotating the push piece 63, so that the lock tongue 61 is retracted into the movable middle plate 7. In addition, it needs to be noted that the bottom of the movable middle plate 7 is made of a rectangular stainless steel plate. The protruding part at the top end of the movable middle plate 7 is formed by welding a thin steel plate, and has a cavity. The movable buckle 6 is installed in the cavity.

[0026] The tightness adjuster 65 is composed of an adjusting bolt, a wedge-shaped block and an end block. The adjusting bolt is threadedly connected with the movable middle plate 7. The wedge-shaped block is movably connected with the adjusting bolt, and the side wall thereof is slidably connected with the inner wall of the cavity, so as to limit the rotation of the wedge-shaped block together with the adjusting bolt. One end of the end block is provided with an inclined surface which is matched with the wedge-shaped block. The other end of the end block is inserted into or fixedly connected with the compression spring 62. When the adjusting bolt is rotated, the compression amount of the compression spring 62 is adjusted through the inclined surface on the wedge-shaped block, so as to adjust the elastic force of the compression spring 62.

[0027] According to Figures 1-4 As shown, the pipe clamp 1 is composed of an upper pipe clamp 11 and a lower pipe clamp 12. One end of the upper pipe clamp 11 is hingedly connected with one end of the lower pipe clamp 12. The other end of the lower pipe clamp 12 is hingedly connected with a locking bolt 9 provided with a locking nut. The other end of the upper pipe clamp 11 is provided with an open slot for the locking bolt 9 to turn into. When the upper pipe clamp 11 and the lower pipe clamp 12 are closed, the locking nut abuts against the top end of the open slot. The inner sides of the two ends of the lower pipe clamp 12 are outwardly inclined to form accommodating areas. The inner sides of the two ends of the upper pipe clamp 11 are provided with reinforcing blocks 111 which are inserted into the accommodating areas. The inner wall of the reinforcing block 111 is provided in an arc shape, and the arc shape is coaxial with the arc shape of the pipe clamp 1. The rotational radius of the corner of the reinforcing block 111 plus the radius of the pipe clamp 11 is equal to or less than the distance from the rotational center of the reinforcing block 111 to the center of the pipe clamp 1. When fixing a large-size plastic pipe, the reinforcing blocks 111 cooperate with the accommodating areas to enhance the fixation of the plastic pipe.

[0028] One end of the slide rod 8 is provided with external threads for threaded connection with the pipe clamp 1, the other end is integrally provided with a flange, and the end is provided with an internal hexagonal groove. A roller is sleeved on the slide rod 8 to reduce the friction between the slide rod 8 and the movable middle plate 7, and the flange is arranged to prevent the movable middle plate 7 from falling off the slide rod 8.

[0029] The hydraulic cylinder 3 and the cross rod 2 are installed on a support, and the support is installed on a vehicle body with a hub, so that the semi-automatic welding machine in the application can be moved conveniently.

[0030] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0031] It should be noted that the terms "first", "second", and the like, as used in the specification and in the claims, are intended to modify a particular aspect of the subject matter described in the specification and claims, but do not specifically limit the order or sequence of steps of the method practices. It will be understood by those skilled in the art that data used herein can be interchanged, where appropriate, so that the embodiments of the present application described herein can be practiced in other than the order illustrated or described herein.

[0032] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A semi-automatic welding machine, comprising a pipe clamp (1), a cross bar (2) and a hydraulic cylinder (3), wherein the cross bar (2) and the hydraulic cylinder (3) are arranged in parallel and spaced apart, a plurality of the pipe clamps (1) are provided and are all mounted on the cross bar (2) and the hydraulic cylinder (3), the plurality of the pipe clamps (1) are evenly divided into two groups, one group is mounted on the piston rod of the hydraulic cylinder (3) to become a static pipe clamp (5), and the other group is mounted on the lever barrel of the hydraulic rod to become a dynamic pipe clamp (4), and the semi-automatic welding machine is characterized in that: The two pipe clamps (1) adjacent to the static pipe clamp (5) and the dynamic pipe clamp (4) are provided with a fixing device, and the fixing device comprises a movable middle plate (7) and a movable buckle (6) installed on the movable middle plate (7), The movable middle plate (7) is provided in a convex shape, a groove (71) is formed in the middle of the top of the movable middle plate (7), the movable buckle (6) is installed on the side wall of the groove (71), two symmetrical slide grooves (72) are formed in the movable middle plate (7), and the two slide grooves (72) are distributed on the two sides of the groove (71), one end of each of the two slide grooves (72) is provided with a clamping groove (73), and the static pipe clamp (5) and the dynamic pipe clamp (4) are connected with a sliding rod (8) for sliding in the two slide grooves (72) respectively.

2. The semi-automatic welding machine of claim 1, wherein: The movable buckle (6) comprises a lock tongue (61), a compression spring (62) and a push piece (63), one end of the lock tongue (61) is connected with the compression spring (62), the other end of the compression spring (62) is provided with a tightness adjuster (65), a push plate (64) is arranged at the position where the lock tongue (61) is connected with the compression spring (62), and the push piece (63) is hingedly connected with the movable middle plate (7) through a shaft pin, and the free end of the push piece (63) is used for abutting against the push plate (64).

3. The semi-automatic welding machine of claim 2, wherein: The pipe clamp (1) is composed of an upper pipe clamp (11) and a lower pipe clamp (12), one end of the upper pipe clamp (11) is hingedly connected with one end of the lower pipe clamp (12) through a shaft pin, the other end of the lower pipe clamp (12) is hingedly connected with a locking bolt (9) provided with a locking nut, the other end of the upper pipe clamp (11) is provided with an opening groove for the locking bolt (9) to turn in, and when the upper pipe clamp (11) and the lower pipe clamp (12) are closed, the locking nut abuts against the top end of the opening groove.

4. The semi-automatic welding machine of claim 3, wherein: The inner sides of the two ends of the lower pipe clamp (12) are outwardly inclined to form accommodation areas, the inner sides of the two ends of the upper pipe clamp (11) are provided with reinforcing blocks (111) for being inserted into the accommodation areas, the inner wall of the reinforcing block (111) is provided in an arc shape, and the arc shape is coaxial with the arc shape of the pipe clamp (1); The rotating radius of the corner of the reinforcing block (111) plus the radius of the pipe clamp (11) is equal to or less than the distance from the rotating center of the reinforcing block (111) to the center of the pipe clamp (1).

5. The semi-automatic welding machine of claim 4, wherein: One end of the sliding rod (8) is provided with an external thread for being threadedly connected with the pipe clamp (1), the other end of the sliding rod (8) is integrally provided with a flange, and the other end is provided with an internal hexagonal groove.

6. The semi-automatic welding machine of claim 5, wherein: A roller is sleeved on the sliding rod (8).

7. The semi-automatic welding machine of claim 6, wherein: The hydraulic cylinder (3) and the cross rod (2) are installed on a support, and the support is installed on a vehicle body provided with a hub.

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