A modular steel cage lap welding positioning machine

Abstract

The present invention relates to the field of welding technology, and discloses a modular steel cage lap welding positioning machine, comprising a lower steel cage, a positioning part is arranged at the top position of the lower steel cage, an upper steel cage is arranged above the positioning part, the positioning part comprises a main positioning member for positioning the lower steel cage, the main positioning member comprises a rectangular plate arranged at the middle position of the top of the lower steel cage, a side plate for fully supporting the top of the lower steel cage is arranged in the middle of the rectangular plate, and a secondary positioning member for positioning and supporting the side of the lower steel cage and the side of the upper steel cage is arranged on the side of the main positioning member. The invention is provided with a main positioning member, when the rectangular plate positions the middle of the lower steel cage, the lower positioning plate gradually moves to the side of the lower steel cage, the lower positioning plate and the rectangular plate can fully support and position the lower steel cage at the top of the lower steel cage, and then the upper steel cage is continuously hoisted, and during this process, the lower steel cage will not be offset due to the support of the positioning part.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a modular steel cage lap welding positioning machine. Background Art

[0002] Steel cages are widely used, and can be used for slope support, foundation pit support, roadbed footing, anti-scouring protection of rivers and dams, and river diversion. Due to the large length and weight of steel cages, they are often made in sections during construction. The length of the steel cages made in sections should not be shorter than 6 meters. In this case, if the height of the scene exceeds the length of a single steel cage made in sections, multiple steel cages need to be welded together, and the connection between the steel cages is usually lap welding.

[0003] Since 50% of the steel bar joints need to be staggered during lap welding, in order to ensure the accuracy of welding during the welding process, the stability of the positions of the upper and lower steel cages needs to be maintained. In the prior art, when lap welding the steel cage, the steel cage is positioned by placing a fixed plate on the cage head of the lower steel cage, and the lower steel cage is positioned at the pouring port by the fixed plate. Then, the steel cage suspended from the top is adjusted to the appropriate position and the lap welding operation is performed. However, the steel cage cannot be stably positioned by only using the fixed plate, and the steel cage may be offset during the welding process. The staff is required to perform timely positioning and adjustment during the welding process, and the welding efficiency is low, and it is easy to cause accidental injuries to the staff. In view of this, a modular steel cage lap welding positioning machine is provided. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a modular steel cage lap welding positioning machine, which can effectively solve the problem of unstable positioning structure during the prior art steel cage lap welding process.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a modular steel cage lap welding positioning machine, comprising a lower steel cage, a positioning portion is arranged at the top of the lower steel cage, an upper steel cage is arranged above the positioning portion, the positioning portion comprises a main positioning member for positioning the lower steel cage, the main positioning member comprises a rectangular plate penetrating the middle of the top of the lower steel cage, and a side plate for fully supporting the top of the lower steel cage is arranged in the middle of the rectangular plate;

[0009] Wherein, the side of the main positioning member is provided with a secondary positioning member for positioning and supporting the side of the lower steel cage and the side of the upper steel cage.

[0010] Furthermore, a rotating shaft passes through the middle of the rectangular plate, a screw shaft is fixedly connected to the middle of the rotating shaft, a stop block is sleeved on the outer side of the screw shaft, push blocks are attached to both sides of the stop block, a push rod is fixedly connected to the other end of the push block, and a compression spring is sleeved on the outer surface of the push rod.

[0011] Furthermore, the auxiliary positioning member includes a lower positioning plate fixedly connected to one end of the push rod away from the rectangular plate, and the lower positioning plate is arranged in an arc shape. In an initial state, the inner wall of the lower positioning plate fits with the side groove opened on the side of the side plate, and the lower positioning plate and the side plate form a closed disc in the middle of the rectangular plate.

[0012] Furthermore, the auxiliary positioning member also includes a limit block fixed in the middle part of the outer side of the lower positioning plate, the limit block is engaged with a clamping block via a clamping member arranged inside it, the top of the clamping block is slidably connected to a fixed plate, and the top of the fixed plate is fixedly connected to an upper positioning plate that fits with the bottom end of the upper steel cage.

[0013] Furthermore, the auxiliary positioning member also includes side blocks arranged at both ends of the lower positioning plate, a limiting ring is arranged at the top of the side block, a clamping ring is fixedly connected to the bottom end of the limiting ring, a torsion rod is arranged on one side of the clamping ring, and a fixing rod is clamped and connected to the inner side of the limiting ring.

[0014] Furthermore, the stop block is configured as a trapezoidal block, the side of the push block away from the push rod is configured as an inclined surface complementary to the side of the stop block, the push rod passes through a circular groove configured on the side of the side plate, and the size of the circular groove is smaller than the size of the compression spring.

[0015] Furthermore, a thread groove is provided in the middle of the stop block, and the length of the thread groove is smaller than the length of the screw shaft.

[0016] Furthermore, the limiting ring is composed of two separated half rings, an arc-shaped long groove for movement of the limiting ring is opened inside the side block, an inner wall of one half ring is fixedly connected to the arc-shaped long groove, and the other half ring is slidably connected to the arc-shaped long groove.

[0017] Beneficial Effects

[0018] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] The present invention is provided with a main positioning member. When the rectangular plate positions the middle of the lower steel cage, the lower positioning plate gradually moves to the side of the lower steel cage. The lower positioning plate and the rectangular plate can fully support and position the lower steel cage at the top of the lower steel cage. Then the upper steel cage is continuously hoisted until the upper steel cage is adjusted to a suitable position. In this process, the lower steel cage is supported by the positioning member and will not deviate.

[0020] When the upper and lower locating plates are moved upwardly, the fixing rods are symmetrically fixedly connected to the bottom ends of the upper and lower locating plates, and the fixing rods are fitted with the side edges of the limiting rings. Due to the increased distance between the limiting rings, the fixing rods can be quickly and accurately inserted into the fixing rods. After the fixing blocks are restricted by the limiting blocks, and then the height of the fixing plates is adjusted, the auxiliary locating plates are not subjected to other external forces at this time. The staff rotates the torsion bar and squeezes the clamping ring through the rotation of the torsion bar. The clamping ring drives the limiting ring to slide on the inner side of the arc long groove, so that the two separated semi-rings of the limiting ring are completely closed. The size of the fixing rod is the same as the size of the circular ring formed by the closure of the limiting ring. The inner wall of the semi-ring is provided with irregular patterns, which further increases the fixed limit of the limiting ring on the fixing rod, thereby placing the upper locating plate with adjusted height in a position parallel to the lower locating plate. When the upper steel cage gradually moves down to the optimal position for lap welding, the bottom end of the upper steel cage contacts the surface of the upper locating plate, so as to achieve the purpose of ensuring the accurate position of the upper steel cage blanking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the installation structure of an embodiment of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the lower reinforcement cage installation state according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the split structure of the auxiliary positioning member according to an embodiment of the present invention;

[0025] Figure 4 It is a perspective schematic diagram of the side block structure of an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a connection structure of a positioning portion according to an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the internal structure of a rectangular plate according to an embodiment of the present invention.

[0028] The numbers in the figure represent respectively: 1. positioning part; 11. main positioning member; 111. rectangular plate; 112. side plate; 113. side groove; 114. push rod; 115. rotating shaft; 116. screw shaft; 117. stop block; 118. push block; 119. compression spring; 12. auxiliary positioning member; 121. upper positioning plate; 122. fixed plate; 123. clamping block; 124. fixed rod; 125. lower positioning plate; 126. limiting block; 127. side block; 1271. arc-shaped long groove; 128. limiting ring; 1281. clamping ring; 129. torsion bar; 2. lower steel cage; 3. upper steel cage. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention will be further described below in conjunction with the embodiments.

[0031] Example:

[0032] See also Figure 1-Figure 6 The present invention provides a technical solution for a modular steel cage lap welding positioning machine: the heights of the lower steel cage 2 and the upper steel cage 3 are set according to the hole top elevation, and then the assembled lower steel cage 2 and the upper steel cage 3 are installed. First, when the lower steel cage 2 is lifted by a car, ensure that the lifting points of the lower steel cage 2 are fastened and arranged in the diameter direction, and then the steel cage 2 is gently and slowly lowered to the hole position. If there is an obstacle, it needs to be rotated forward and backward to lower it, and forced lowering is avoided to prevent damage to the hole wall. When the lower steel cage 2 moves down to the corresponding position, the staff will penetrate the positioning part 1 through the lower steel cage 2 until it is as shown in the figure. Figure 2 shown.

[0033] like Figure 2 , Figure 5 and Figure 6 As shown, the positioning part 1 includes a main positioning member 11, which is located above the hole pile and passes through the upper part of the lower steel cage 2 to position the lower steel cage 2. The main positioning member 11 includes a rectangular plate 111, and a side plate 112 is symmetrically fixed in the middle of the rectangular plate 111. A side groove 113 is opened on the outer side of the side plate 112, and a lower positioning plate 125 is slidably connected to the inner side of the side groove 113. The lower positioning plate 125 is completely closed with the side plate 112. The completely closed side plate 112, the lower positioning plate 125 and the rectangular plate 111 can support the tripod of the lower steel cage 2.

[0034] A rotating shaft 115 is rotatably connected to the middle of the rectangular plate 111, and a screw shaft 116 is fixedly connected to the middle of the rotating shaft 115. A stop block 117 is sleeved on the outer side of the screw shaft 116, and a threaded groove is opened in the middle of the stop block 117, which is threadedly connected to the inner side of the screw shaft 116. The rotating shaft 115 passes through the rectangular plate 111, and a knob is fixedly connected to one end of the rectangular plate 111 for the convenience of the staff to hold. When the staff turns the knob, the knob drives the rotating shaft 115 to rotate, and the rotation of the rotating shaft 115 drives the screw shaft 116 to rotate.

[0035] The stopper 117 is set as a trapezoidal block, and push blocks 118 are attached to both sides of the trapezoidal block. The other end of the push block 118 is fixedly connected to a push rod 114. A compression spring 119 is sleeved on the outside of the push rod 114. The push rod 114 passes through the circular groove opened on the side of the side plate 112. The size of the compression spring 119 is larger than the size of the circular groove. The other end of the push rod 114 is fixedly connected to the inner side of the lower positioning plate 125. The screw shaft 116 rotates to drive the stopper 117 to move. The stopper 117 moves along the screw shaft 116. The movement of the stopper 117 applies pressure to the push block 118. The push block 118 moves toward the outside of the side plate 112 under the thrust of the stopper 117. The movement of the push block 118 drives the push rod 114 to move. The push rod 114 moves along the circular groove. The movement of the push rod 114 exerts pressure on the push block 118 sleeved on the outside thereof. The compression spring 119 is squeezed, and the compression spring 119 is elastically deformed under the squeeze, and the push rod 114 moves to drive the lower positioning plate 125 to move, so that the lower positioning plate 125 moves along the side groove 113, so that the lower positioning plate 125 gradually moves away from the side plate 112, and the lower positioning plate 125 moves and no longer fits with the side plate 112. When the rectangular plate 111 positions the middle of the lower steel cage 2, the lower positioning plate 125 gradually moves to the side of the lower steel cage 2. The lower positioning plate 125 and the rectangular plate 111 can fully support and position the lower steel cage 2 at the top of the lower steel cage 2, and then the upper steel cage 3 is continued to be lifted until the upper steel cage 3 is adjusted to a suitable position. During this process, the lower steel cage 2 is supported by the positioning portion 1 and will not be offset.

[0036] When the lower steel cage 2 and the upper steel cage 3 are overlapped and welded, the upper steel cage 3 is hoisted to a suitable position by a vehicle. Figure 2 As shown, the auxiliary positioning member 12 is located as a whole on the side of the lower steel cage 2, and the lower positioning plate 125 supports the bottom end of the side of the lower steel cage 2. Then the staff supports the upper steel cage 3 that has been hoisted down to keep it parallel to the lower steel cage 2 to avoid position displacement or bending of the upper steel cage 3 during the hoisting process.

[0037] like Figure 2 , Figure 3 and Figure 4As shown, a limiting block 126 is fixedly connected to the middle part of the outer side of the lower positioning plate 125, and a locking piece is arranged on the inner side of the limiting block 126. The locking piece includes a convex block arranged on the inner side of the limiting block 126, and a stopper elastically connected to the inner wall of the limiting block 126. The side of the limiting block 126 is arranged to be in an open state. The staff can directly engage the block 123 along the opening into the inner side of the limiting block 126. The limiting block 126 limits the block 123 under the joint action of the convex block and the stopper, and the staff can quickly install the upper positioning plate 121 above the lower positioning plate 125.

[0038] like Figure 3As shown, a fixing plate 122 is slidably connected above the clamping block 123, and the surface of the fixing plate 122 is marked with measurement units such as height and length. According to the welding requirements of different lower steel cages 2 and upper steel cages 3, the height of the fixing plate 122 can be adjusted to the required size. Side blocks 127 are fixedly connected at both ends of the lower positioning plate 125, and an arc-shaped long groove 1271 is opened on the inner side of the side block 127. A limiting ring 128 is arranged on the inner side of the arc-shaped long groove 1271. The limiting ring 128 consists of two separated semi-rings, one of which is fixedly connected to the side of the arc-shaped long groove 1271, and the other semi-ring is slidably connected to the arc-shaped long groove 1271. The bottom ends of the two half rings of the limiting ring 128 are fixedly connected with a snap ring 1281, and the snap ring 1281 fixedly connected to the bottom end of the half ring slidably connected to the arc-shaped long groove 1271 is also slidably connected to the arc-shaped long groove 1271. The side of the snap ring 1281 is threadedly connected with a torsion rod 129, and one end of the torsion rod 129 passes through the side block 127. The torsion rod 129 consists of a round block located outside the side block 127 and a threaded rod fixedly connected to the round block. In the initial state, the threaded rod passes through the snap ring 1281 and fits the round block. At this time, the distance between the two half rings of the limiting ring 128 is the farthest. When the clamping block 123 and the fixed plate 122 drive When the upper positioning plate 121 moves to the top of the lower positioning plate 125, the bottom end of the upper positioning plate 121 is symmetrically fixedly connected with a fixing rod 124, and the fixing rod 124 fits the side of the limiting ring 128. As the distance between the limiting rings 128 increases, the fixing rod 124 can be quickly and accurately inserted therein. After the clamping block 123 is restricted by the limiting block 126, and then the height of the fixing plate 122 is adjusted, the auxiliary positioning member 12 is not subjected to other external forces at this time. The staff rotates the torsion bar 129, and the clamping ring 1281 is squeezed by the rotation of the torsion bar 129, and the clamping ring 1281 drives the limiting ring 128 to move. The positioning ring 128 slides on the inner side of the arc-shaped long groove 1271, so that the two separated half rings of the limiting ring 128 are completely closed, and the size of the fixing rod 124 is the same as the size of the circular ring formed by the closing of the limiting ring 128. The inner wall of the half ring is provided with irregular patterns, which further increase the fixed position of the limiting ring 128 on the fixing rod 124, thereby placing the upper positioning plate 121 with adjusted height in a position parallel to the lower positioning plate 125. When the upper steel cage 3 gradually moves down to the optimal position for lap welding, the bottom end of the upper steel cage 3 contacts the surface of the upper positioning plate 121, so as to ensure the accurate cutting position of the upper steel cage 3.

[0039] After completing the comprehensive positioning and support of the lower steel cage 2, the upper steel cage 3 is then hoisted for installation. In order to ensure that the upper steel cage 3 is hoisted to be flush with the lower steel cage 2 and the main bars are welded to the appropriate position, the staff needs to install the secondary positioning piece 12 on the surface of the main positioning piece 11. First, according to the different sizes of the lower steel cage 2 and the upper steel cage 3, the appropriate welding seam height is rotated, and the height of the fixing plate 122 is adjusted according to the height. After the height adjustment, the fixing plate 122 fixes the height between the block 123 and the upper positioning plate 121, and the block 123 is inserted into the inner side of the limit block 126, and the fixing rod 124 is inserted into the inner side of the separated limit ring 128. The block 123 that is not in contact with the external force is limited by the limit block 126. The staff then The fixing rod 124 is fixed to the inner side of the limiting ring 128 by rotating the torsion bar 129, so that the height between the upper positioning plate 121 and the lower positioning plate 125 is the height required for welding and the two are in a parallel state, and then the hoisted upper steel cage 3 is gradually lowered, and the bottom end of the upper steel cage 3 contacts the top end of the upper positioning plate 121. The upper steel cage 3 that is offset during the hoisting process can be balanced and adjusted by the upper positioning plate 121, and the bottom end of the upper steel cage 3 is supported by the upper positioning plate 121 and the top end is pulled by the automobile hoisting. The lower steel cage 2 is fully protected by the main positioning piece 11 on the middle and side of its bottom, so as to avoid the need to adjust the upper steel cage 3 multiple times during the welding process, improve the stability of the lower steel cage 2 and the upper steel cage 3, and improve the welding efficiency and quality.

[0040] After welding is completed, the torsion bar 129 is rotated in the opposite direction to remove the upper positioning plate 121 parallel to the lower positioning plate 125, so that the upper steel cage 3 is no longer limited. Then the rotating shaft 115 is rotated in the opposite direction, and the rotating shaft 115 drives the screw shaft 116 to rotate, and the screw shaft 116 drives the stop block 117 to move. The stop block 117 no longer limits the push block 118, and the push block 118 drives the push rod 114 to return to its original position under the elastic force of the compression spring 119. The lower positioning plate 125 slides to a state of being in contact with the side of the side plate 112 under the restriction of the circular groove and the side groove 113, thereby recovering the main positioning piece 11 that fully limits the bottom end of the lower steel cage 2. This device is suitable for the installation requirements of piles of multiple sizes.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular steel cage lap welding positioning machine, characterized in that: The invention comprises a lower steel cage (2), wherein a positioning portion (1) is arranged at the top end of the lower steel cage (2), an upper steel cage (3) is arranged above the positioning portion (1), the positioning portion (1) comprises a main positioning member (11) for positioning the lower steel cage (2), the main positioning member (11) comprises a rectangular plate (111) penetrating the middle of the bottom end of the lower steel cage (2), and a side plate (112) is arranged in the middle of the rectangular plate (111) for fully supporting the bottom end of the lower steel cage (2); A rotating shaft (115) passes through the middle of the rectangular plate (111), a screw shaft (116) is fixedly connected to the middle of the rotating shaft (115), a stop block (117) is sleeved on the outer side of the screw shaft (116), push blocks (118) are attached to both sides of the stop block (117), a push rod (114) is fixedly connected to the other end of the push block (118), and a compression spring (119) is sleeved on the outer surface of the push rod (114); Wherein, a secondary positioning member (12) is provided on the side of the main positioning member (11) for positioning and supporting the side of the lower steel cage (2) and the side of the upper steel cage (3); The auxiliary positioning member (12) comprises a lower positioning plate (125) fixedly connected to an end of the push rod (114) away from the rectangular plate (111), the lower positioning plate (125) being arranged in an arc shape, and in an initial state, an inner wall of the lower positioning plate (125) is fitted with a side groove (113) provided on a side of the side plate (112), and the lower positioning plate (125) and the side plate (112) form a closed disc in the middle of the rectangular plate (111); The auxiliary positioning member (12) further comprises a limiting block (126) fixed to the middle part of the outer side of the lower positioning plate (125); the limiting block (126) is connected to the clamping block (123) by means of a clamping member arranged inside the limiting block (126); the top end of the clamping block (123) is slidably connected to the fixing plate (122); the top end of the fixing plate (122) is fixedly connected to the upper positioning plate (121) which is in contact with the bottom end of the upper reinforcement cage (3); The auxiliary positioning member (12) further comprises side blocks (127) arranged at both ends of the lower positioning plate (125); a limiting ring (128) is arranged at the top end of the side block (127); a clamping ring (1281) is fixedly connected to the bottom end of the limiting ring (128); a torsion rod (129) is arranged on one side of the clamping ring (1281); and a fixing rod (124) is snap-fittedly connected to the inner side of the limiting ring (128).

2. A modular steel cage lap welding positioning machine according to claim 1, characterized in that: The stop block (117) is configured as a trapezoidal block, a side of the push block (118) away from the push rod (114) is configured as an inclined surface that is complementary to the side of the stop block (117), the push rod (114) passes through a circular groove provided on the side of the side plate (112), and the size of the circular groove is smaller than the size of the circular groove compression spring (119).

3. A modular steel cage lap welding positioning machine according to claim 1, characterized in that: A thread groove is provided in the middle of the stop block (117), and the length of the thread groove is less than the length of the screw shaft (116).

4. A modular steel cage lap welding positioning machine according to claim 1, characterized in that: The limiting ring (128) is composed of two separated half rings, and an arc-shaped long groove (1271) for the limiting ring (128) to move is provided inside the side block (127), the inner wall of one half ring is fixedly connected to the arc-shaped long groove (1271), and the other half ring is slidably connected to the arc-shaped long groove (1271).

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