A welding auxiliary device for mine hydraulic support

Abstract

The application provides a welding auxiliary device for a mine hydraulic support and relates to the technical field of welding auxiliary devices.The application comprises a support, a fixing frame fixed to the support, wherein a sliding groove is arranged on the fixing frame, two limit blocks symmetrically distributed, which are detachably connected to the fixing frame, a plurality of moving blocks are slidably connected to the opposite sides of the two limit blocks, first hydraulic telescopic rods are fixed to the moving blocks, and the telescopic ends of the first hydraulic telescopic rods on the adjacent two limit blocks are jointly rotatably connected to extrusion rollers.The arc-shaped part of the arc-shaped plate is continuously extruded and fixed by the uniformly distributed extrusion rollers during welding, so that the arc-shaped plate is uniformly stressed during welding, the thermal stress locally borne by the arc-shaped plate is dispersed to the whole, the stress concentration of the arc-shaped plate is reduced, and the quality and position accuracy of the weld between the arc-shaped plate and the rib plate are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of welding auxiliary devices, and in particular to a welding auxiliary device for a mine hydraulic support. Background Art

[0002] Hydraulic supports are essential equipment used in coal mining, supporting the roof of mine tunnels and ensuring working surface safety. They provide a stable working environment for equipment such as shearers and conveyors, while also ensuring the safety of workers. To enhance the overall stability and load-bearing capacity of hydraulic supports, their top beams are typically designed with a curved shape to increase rigidity and minimize deformation during use. To further enhance the rigidity and compressive strength of the top beams, ribs are often welded to them.

[0003] Currently, when welding ribs to curved plates, the ribs and the curved metal plate are usually spot-welded first to ensure their relative position. During subsequent welding, the relative position of the curved metal plate and the ribs is maintained only by a fixture. However, during the arc-shaped metal plate welding process, the heat generated can cause uneven heating of the curved metal plate, resulting in localized thermal stress concentration, which can cause deformation of the curved metal plate in that area and relative movement between the curved metal plate and the ribs, affecting the quality of the weld and the accuracy of the position. It can even cause the arc-shaped metal plate and the ribs to separate at their welding points after welding due to the release of internal stress, affecting the durability and safety of the overall structure. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a welding auxiliary device for a mine hydraulic support.

[0005] In order to achieve the above objectives, the technical solutions adopted by the present invention are as follows:

[0006] A welding auxiliary device for a mine hydraulic support, comprising:

[0007] Bracket;

[0008] A fixing frame, fixedly connected to the bracket, and provided with a slide groove;

[0009] An electric push rod is mounted on the fixing frame, and a telescopic end of the electric push rod is fixedly connected to an extrusion plate;

[0010] The limit blocks are symmetrically distributed and can be detachably connected to the fixed frame. The limit blocks are composed of an arc-shaped portion and a horizontal portion. The opposite sides of the two limit blocks are both limitedly and slidably connected to a plurality of moving blocks. The moving blocks are fixedly connected to a first hydraulic telescopic rod. The telescopic ends of two adjacent first hydraulic telescopic rods on different limit blocks are connected to a squeezing roller that rotates together. The squeezing roller slides in the slide groove of the fixed frame.

[0011] The driving components have two symmetrically distributed components, which are respectively arranged on adjacent limiting blocks. The driving components are used to drive all the moving blocks on the adjacent limiting blocks to move.

[0012] More preferably, the drive assembly includes:

[0013] A driving motor is installed on the adjacent limit block, the output shaft of the driving motor is fixedly connected to a winding roller, and the winding roller is rotatably connected to the adjacent limit block;

[0014] A traction rope is wound around the winding roller, the traction rope is fixedly connected to the moving block on the adjacent limit block close to the drive motor, and a first elastic member is fixedly connected between two adjacent moving blocks on the same limit block;

[0015] The second elastic member is fixedly connected between the moving block away from the traction rope and the limiting block.

[0016] More preferably, the opposite sides of two adjacent moving blocks on different limit blocks are fixed with a first connecting rod and a second connecting rod, and the limit block is provided with a first limit groove and a second limit groove, and the first limit groove and the second limit groove are both composed of a horizontal portion and an arc-shaped portion, and the first connecting rod slides in the adjacent first limit groove, and the second connecting rod slides in the adjacent second limit groove.

[0017] More preferably, the centers of the circles where the arc-shaped portions of the first limiting groove and the second limiting groove are located coincide with each other, and the angles of the corresponding central angles of the arc-shaped portions and the lengths of the horizontal portions of the two arc-shaped portions are the same.

[0018] More preferably, the second limiting groove is provided with multiple steps, and the distance between two adjacent steps on two symmetrically distributed second limiting grooves decreases as the distance between the step and the adjacent driving motor increases.

[0019] More preferably, the lengths of all the second connecting rods on the same limiting block increase with the increase of the distance between the second connecting rod and the drive motor, and the multi-step portion of the second limiting groove is used to limit the second connecting rods of different lengths respectively.

[0020] More preferably, it further comprises:

[0021] A mounting block is limitedly and slidably connected to the bracket, and the bracket is provided with a driving module for driving the mounting block to move;

[0022] a second hydraulic telescopic rod, fixedly connected to the mounting block;

[0023] a first electric rotating shaft, provided at the telescopic end of the second hydraulic telescopic rod;

[0024] A mounting plate fixedly connected to the first electric rotating shaft;

[0025] Two clamping plates are symmetrically distributed and are both limitedly slidably connected to the mounting plate;

[0026] The second electric rotating shaft is arranged on the adjacent mounting plate. The second electric rotating shaft is provided with an external thread. The clamping plate is threadedly connected to the external thread on the second electric rotating shaft.

[0027] More preferably, an L-shaped plate is fixed to the upper side of the clamping plate for limiting the workpiece.

[0028] More preferably, it further comprises:

[0029] The supporting plates are symmetrically distributed and are respectively arranged on the opposite sides of the two mounting plates. A fixing component is provided between the supporting plate and the adjacent clamping plate, and the fixing component is used to change the angle between the supporting plate and the adjacent mounting plate.

[0030] More preferably, the fixing assembly includes:

[0031] an arc-shaped rod, slidably connected to the adjacent support plate and fixedly connected to the adjacent clamping plate, and provided with an arc-shaped rack;

[0032] A self-locking motor is provided on the support plate, wherein the output shaft of the self-locking motor is fixedly connected to a gear meshing with the arc-shaped rack;

[0033] The fourth hydraulic telescopic rod is spherically connected between the adjacent mounting plates and the adjacent support plates.

[0034] The beneficial technical effects of the present invention are:

[0035] The present invention continuously squeezes and fixes the arc portion of the arc plate during the welding process through evenly distributed squeezing rollers, so that the arc plate is subjected to uniform force during the welding process, and the thermal stress exerted on the local part of the arc plate is dispersed to the whole, thereby reducing the local stress concentration of the arc plate and reducing the internal stress remaining between the arc plate and the rib plate after welding, thereby ensuring the quality and accuracy of the position of the weld between the arc plate and the rib plate.

[0036] The first limiting groove and the adjacent second limiting groove are used to limit the moving block together to ensure the stability of the position of the moving block, avoid the moving block from deviating from the established path during movement, and ensure that the extrusion roller is finally evenly distributed on the arc portion of the arc plate to ensure that the arc portion of the arc plate is evenly stressed.

[0037] During the welding process, the rib plate is positioned by two symmetrically distributed clamping plates and symmetrically distributed support plates to prevent the rib plate from bending or deforming due to stress and thermal expansion and contraction during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing frame and the limiting block of the present invention;

[0040] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing frame and the squeezing roller of the present invention;

[0041] Figure 4 This is a schematic diagram of the three-dimensional structure of the driving motor and the winding roller of the present invention;

[0042] Figure 5 This is a schematic diagram of the three-dimensional structure of the first elastic member and the second elastic member of the present invention;

[0043] Figure 6 Schematic diagram of the three-dimensional structure of the first connecting rod and the second connecting rod of the present invention;

[0044] Figure 7 This is a schematic diagram of the three-dimensional structure of the mounting plate and the clamping plate of the present invention;

[0045] Figure 8 Schematic diagram of the three-dimensional structure of the support plate and the arc rod of the present invention;

[0046] Figure 9 It is a schematic diagram of the three-dimensional structure of the connecting seat and the latch of the present invention.

[0047] Description of reference numerals:

[0048] 100: Intelligent welding machine, 1: Bracket, 2: Fixed frame, 201: Electric push rod, 3: Limit block, 4: Moving block, 5: First hydraulic telescopic rod, 6: Squeeze roller, 7: Drive motor, 8: Winding roller, 9: Traction rope, 10: First elastic member, 11: Second elastic member, 111: First connecting rod, 112: Second connecting rod, 113: First limiting groove, 114: Second limiting groove, 12: Mounting block, 13: Second hydraulic telescopic rod, 131: First electric rotating shaft, 14: Mounting plate, 15: Clamp, 16: Second electric rotating shaft, 17: Support plate, 19: Arc rod, 20: Arc rack, 21: Self-locking motor, 24: Fourth hydraulic telescopic rod. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and beneficial effects of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. Certain embodiments of the present invention will be more fully described below with reference to the accompanying drawings, some, but not all, of which are illustrated. The various embodiments of the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention satisfies applicable legal requirements.

[0050] In the description of the present invention, it should be noted that the terms "inner," "outer," "upper," "lower," "front," and "rear," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Example 1: A welding auxiliary device for a mine hydraulic support, such as Figure 1-Figure 5 As shown, it includes: a bracket 1; a fixed frame 2, which is fixed to the bracket 1 and is provided with a slide groove; an electric push rod 201, which is installed on the fixed frame 2, and the telescopic end of the electric push rod 201 is fixed with an extrusion plate; a limit block 3, which has two symmetrically distributed ones, both of which can be detachably connected to the fixed frame 2, and the limit block 3 is composed of an arc portion and a horizontal portion, and the opposite sides of the two limit blocks 3 are limitedly and slidably connected with a number of moving blocks 4; the moving block 4 is fixed with a first hydraulic telescopic rod 5, and the telescopic ends of two adjacent first hydraulic telescopic rods 5 on different limit blocks 3 are rotated together and connected with an extrusion roller 6, and the extrusion roller 6 slides in the slide groove of the fixed frame 2; a drive assembly, which has two symmetrically distributed ones, which are respectively provided on adjacent limit blocks 3, and the drive assembly is used to drive all the moving blocks 4 on adjacent limit blocks 3 to move.

[0052] In the above scheme, an intelligent welding machine 100 for welding the curved metal plate and the rib plate is provided on the front side of the fixed frame 2, the fixed frame 2 is used to place the curved metal plate to be welded, and the upper side of the fixed frame 2 is provided with a step portion for positioning the curved metal plate; the two limit blocks 3 are symmetrically distributed front and back; the specific number of movable blocks 4 on each limit block 3 is selected by the staff according to actual conditions. The figure and the text are both represented by five horizontally arranged blocks as an example. For ease of understanding, the five movable blocks 4 on the front side are subsequently edited into the first group, and the five movable blocks 4 on the rear side are edited into the second group; each first hydraulic telescopic rod 5 is connected to the external hydraulic system, and the volume of hydraulic oil in the fixed part of the first hydraulic telescopic rod 5 can be controlled by the external hydraulic system. Initially, the telescopic end of the first hydraulic telescopic rod 5 is in an extended state.

[0053] Further, such as Figure 3-Figure 5 As shown, the driving assembly includes: a driving motor 7, which is installed on an adjacent limit block 3, and the output shaft of the driving motor 7 is fixedly connected to a winding roller 8, and the winding roller 8 is rotatably connected to the adjacent limit block 3; a traction rope 9, which is wound around the winding roller 8, and the traction rope 9 is fixed to the moving block 4 on the adjacent limit block 3 close to the driving motor 7, and a first elastic member 10 is fixed between two adjacent moving blocks 4 on the same limit block 3; a second elastic member 11, which is fixed between the moving block 4 away from the traction rope 9 and the limit block 3.

[0054] In the above scheme, the drive motor 7 is located on the upper side of the left part of the adjacent limit block 3; the traction rope 9 is fixedly connected to the leftmost moving block 4; the first elastic member 10 and the second elastic member 11 are both tension springs, and the elastic coefficient of the second elastic member 11 is smaller than the elastic coefficient of the first elastic member 10.

[0055] The workflow of the above solution is as follows:

[0056] When it is necessary to use this device to weld an arc-shaped metal plate (hereinafter referred to as the arc plate) to a rib plate, the staff uses the existing loading device to move the arc plate onto the fixing frame 2, and moves the right side of the arc plate to a position in contact with the step portion on the fixing frame 2. The fixing frame 2 positions the arc plate. At this time, the arc plate is located between the fixing frame 2 and the two limit blocks 3, and the intersection of the arc portion and the horizontal portion of the arc plate and the intersection of the arc portion and the horizontal portion of the limit block 3 are located on the same vertical line.

[0057] After the curved plate is installed, the staff starts the two drive motors 7. The following describes the movement process of the five moving blocks 4 on the front side as an example:

[0058] The output shaft of the driving motor 7 drives the winding roller 8 to rotate, and the winding roller 8 winds the traction rope 9 onto it, so that the traction rope 9 drives the leftmost moving block 4 to move to the left, and the leftmost moving block 4 drives the other four moving blocks 4 to move to the left synchronously through the transmission of the four first elastic members 10, so that the five moving blocks 4 move from the horizontal part of the limit block 3 to its arc-shaped part, and at the same time, the rightmost moving block 4 stretches the second elastic member 11 during the movement process until the second elastic member 11 is stretched to the limit position, and the rightmost moving block 4 moves to the arc-shaped part of the limit block 3 and the water At the intersection of the flat parts, the leftmost moving block 4 can still continue to move along the arc-shaped portion of the limit block 3. During the subsequent movement of the leftmost moving block 4, the four first elastic members 10 begin to be stretched synchronously, so that the increase in the distance between the two adjacent squeezing rollers 6 is the same, until the leftmost moving block 4 moves to the extreme position, that is, when the leftmost moving block 4 moves to the uppermost side of the arc-shaped portion of the limit block 3, the four first elastic members 10 are all stretched to the extreme state. At this time, the five squeezing rollers 6 are equidistantly distributed on the arc-shaped portion of the arc plate, and then the staff turns off the two drive motors 7.

[0059] During the movement of the five moving blocks 4 on the front and rear sides, the two adjacent moving blocks 4 drive the squeezing roller 6 between them to move synchronously along the slide of the fixed frame 2. When the two moving blocks 4 on the far left respectively move to the intersection of the arc-shaped part and the horizontal part of the adjacent limit block 3, the squeezing roller 6 on the far left moves out of the slide of the fixed frame 2. Then the staff controls the external hydraulic system to extract the hydraulic oil in the fixed parts of the two first hydraulic telescopic rods 5 on the far left, so that the telescopic ends of the two first hydraulic telescopic rods 5 on the far left are contracted, and the squeezing roller 6 on the far left moves synchronously with the telescopic ends of the two first hydraulic telescopic rods 5 on the far left, and the squeezing roller 6 on the far left is squeezed by the squeezing roller 6 on the lower side of the curved plate (the curved part of the curved plate). Extrusion makes the arc portion of the arc plate close to the lower side of the arc portion of the limit block 3. During this process, the two driving motors 7 respectively drive the two winding rollers 8 to rotate continuously, and then drive all the moving blocks 4 to continue to move, so that the five squeezing rollers 6 squeeze the arc portion of the arc plate in sequence from left to right, eliminating the negative impact of the rebound of the bent metal plate on subsequent welding, ensuring the bending shape of the arc portion of the arc plate, making the bending curvature of the arc portion of the arc plate more standard, and then ensuring the fit between the arc portion of the arc plate and the rib plate, increasing the tightness of the connection between the two, thereby improving the overall structural strength after welding, and the movement process of the subsequent four squeezing rollers 6 is the same as the movement process of the leftmost squeezing roller 6.

[0060] After shutting down the two drive motors 7 as mentioned above, the staff uses the existing transport device to move the rib plate to be welded to the curved plate, and uses the intelligent welding machine 100 to weld the rib plate to the curved plate. During the welding process, the five squeezing rollers 6 continuously squeeze and fix the curved plate, so that the curved plate is evenly stressed during the welding process, and the local thermal stress of the curved plate is dispersed to the entire curved plate, thereby reducing the local stress concentration of the curved plate. At the same time, the internal stress remaining in the curved plate and the rib plate after welding is reduced, and the situation in which the weld between the two is split due to the release of the residual internal stress between the two after welding is completed is avoided, thereby ensuring the quality and position of the weld between the curved plate and the rib plate. After completing the welding, the staff starts the electric push rod 201, and the telescopic end of the electric push rod 201 drives the squeezing plate on it to move to the left, pushing the arc plate after welding to the left, separating the arc plate from the fixing frame 2, and moving the next metal plate to be welded to the welding position.

[0061] Further, such as Figure 5 and Figure 6 As shown, the opposite sides of two adjacent moving blocks 4 on different limit blocks 3 are fixed with a first connecting rod 111 and a second connecting rod 112, and the limit block 3 is provided with a first limiting groove 113 and a second limiting groove 114. The first limiting groove 113 and the second limiting groove 114 are both composed of a horizontal portion and an arc-shaped portion. The first connecting rod 111 slides in the adjacent first limiting groove 113, and the second connecting rod 112 slides in the adjacent second limiting groove 114; the centers of the circles where the arc-shaped portions of the first limiting groove 113 and the second limiting groove 114 are located coincide with each other, and the angles of the corresponding central angles of the arc-shaped portions of the two are the same as the lengths of the horizontal portions.

[0062] In the above scheme, the first limiting groove 113 is located above the adjacent second limiting groove 114; initially, the first connecting rod 111 and the second connecting rod 112 are respectively located in the horizontal parts of the adjacent first limiting groove 113 and the second limiting groove 114; in the process of movement of the above-mentioned front leftmost moving block 4, the moving block 4 drives the first connecting rod 111 and the second connecting rod 112 thereon to move synchronously along the adjacent first limiting groove 113 and the adjacent second limiting groove 114 respectively, and the first limiting groove 113 and the adjacent second limiting groove 114 jointly limit the moving block 4 to ensure the stability of the position of the moving block 4, avoid the moving block 4 from deviating from the established path during the movement, and ensure that the five extrusion rollers 6 can finally be evenly distributed along the arc portion of the arc plate.

[0063] Further, such as Figure 5 and Figure 6 As shown, the second limiting groove 114 is provided with multiple steps, and the distance between two adjacent steps on two symmetrically distributed second limiting grooves 114 decreases as the distance between the step and the adjacent driving motor 7 increases.

[0064] In the above scheme, the specific shape of the second limiting groove 114 is limited. The stepped portion on the second limiting groove 114 is a six-level stepped portion. For the convenience of understanding, the six-level stepped portion is edited from left to right as the first step portion to the sixth step portion, wherein the sixth step portion is located at the horizontal portion of the limiting block 3, and the first to fifth step portions are all located at the arc portion of the limiting block 3.

[0065] like Figure 6 As shown, the lengths of all second connecting rods 112 on the same limiting block 3 increase with the increase of the distance between the second connecting rod 112 and the drive motor 7, and the multi-step portion of the second limiting groove 114 is used to limit the second connecting rods 112 of different lengths respectively.

[0066] In the above scheme, the specific shapes of the five second connecting rods 112 on the same limit block 3 are limited. For the convenience of understanding, the five second connecting rods 112 on the same limit block 3 are edited from left to right as ① second connecting rod 112, ② second connecting rod 112 to ⑤ second connecting rod 112, and the lengths of ① second connecting rod 112 to ⑤ second connecting rod 112 increase in sequence, and initially the ⑤ second connecting rod 112 slides on the sixth step portion of the adjacent second limit groove 114.

[0067] The workflow of the above solution is as follows:

[0068] In the process of the traction rope 9 driving the moving block 4 to move, the following movement process of the five front moving blocks 4 is described as an example:

[0069] When the above-mentioned second elastic member 11 is stretched to the extreme position, the rightmost moving block 4 moves to the junction of the arc portion and the vertical portion of the limit block 3, and the ⑤ second connecting rod 112 moves to the junction of the sixth step and the fifth step, that is, the ⑤ second connecting rod 112 is intercepted by the fifth step and can no longer move. The process of the subsequent four second connecting rods 112 stopping moving is the same as the above-mentioned process of the ⑤ second connecting rod 112 stopping moving, ensuring that the five moving blocks 4 can be evenly distributed in the arc portion of the same limit block 3, thereby further ensuring that the five extrusion rollers 6 are evenly distributed in the arc portion of the arc plate.

[0070] Example 2: Based on Example 1, Figure 2 、 Figure 3 Figure 7 and Figure 8As shown, it also includes: a mounting block 12, which is slidingly connected to the bracket 1, and the bracket 1 is provided with a driving module for driving the mounting block 12 to move; a second hydraulic telescopic rod 13, which is fixed to the mounting block 12; a first electric rotating shaft 131, which is arranged at the telescopic end of the second hydraulic telescopic rod 13; a mounting plate 14, which is fixed to the first electric rotating shaft 131; a clamping plate 15, which has two symmetrically distributed ones, both of which are slidingly connected to the lower side of the mounting plate 14; a second electric rotating shaft 16, which is arranged on the mounting plate 14, and the second electric rotating shaft 16 is provided with an external thread, and the clamping plate 15 is threadedly connected to the external thread on the second electric rotating shaft 16; a support plate 17, which has two symmetrically distributed ones, which are respectively arranged on the opposite sides of the two mounting plates 14, and the support plate 17 consists of a horizontal portion and an arc-shaped portion. A fixing component is provided between the support plate 17 and the adjacent mounting plate 14, and the fixing component is used to change the angle between the support plate 17 and the adjacent mounting plate 14.

[0071] In the above scheme, the existing feeding device is replaced by the above parts and components; the driving module is an existing device, and the figure takes the motor and the threaded rod as an example for description, wherein the motor is fixed to the bracket 1, the threaded rod is rotatably connected to the bracket 1, and the threaded rod is fixed to the output shaft of the motor (such as Figure 1 As shown), it is used to drive the mounting block 12 to move left and right; the fixing part of the second hydraulic telescopic rod 13 is connected to the external hydraulic system; the two clamping plates 15 are symmetrically distributed front to back; the external thread on the second electric rotating shaft 16 is two sections symmetrically distributed front to back, and the two clamping plates 15 are respectively threadedly connected to an adjacent section of external thread on the second electric rotating shaft 16, and the two clamping plates 15 are used to clamp the ribs to be welded, and both clamping plates 15 are provided with an arc-shaped portion; the two support plates 17 are also symmetrically distributed front to back, and the bending curvature and radius of the arc-shaped portion of the support plate 17 are the same as the bending curvature and radius of the arc-shaped portion of the limit block 3, and there is a spacing between the support plate 17 and the adjacent clamping plates 15.

[0072] like Figure 7 As shown, at least one L-shaped plate is fixed to the upper side of the splint 15, which is used to limit the upper side of the rib plate so that the rib plate cannot be squeezed by the arc plate and move upward during movement, ensuring that the lower side of the rib plate and the upper side of the arc plate can fit tightly.

[0073] The workflow of the above solution is as follows:

[0074] When the ribs need to be transported, the staff first uses the existing conveying device to move the required ribs to the right side of the splint 15, and then the staff starts the drive module, which drives the mounting block 12, the second hydraulic telescopic rod 13, the first electric shaft 131, the mounting plate 14 and other parts connected thereto to the right to the extreme position, and then the staff controls the telescopic end of the second hydraulic telescopic rod 13 through the external hydraulic system to drive the other parts connected thereto to move downward. After the two splints 15 move downward until the L-shaped plates on them contact the side surfaces of the ribs, the staff starts the second electric shaft 16, and the second electric shaft 16 drives the two splints 15 closer to each other through the external threads thereon, and the ribs are clamped and fixed by the two splints 15.

[0075] After fixing the rib plate, the staff turns off the second electric shaft 16 and moves the fixed rib plate to the welding position through the external hydraulic system and the drive module, that is, moves the rib plate to the arc plate. At this time, the lower sides of the two support plates 17 are in contact with the upper side of the arc plate. Then, the intelligent welding machine 100 is used to weld the rib plate to the arc plate. During the welding process, the two clamping plates 15 and the two support plates 17 jointly position the rib plate to avoid bending or deformation of the rib plate due to stress and thermal expansion and contraction during the welding process.

[0076] After welding is completed, the staff controls the second electric shaft 16 to move the two clamps 15 away from each other, loosening the clamping of the ribs, and in the subsequent process, controls the two clamps 15 to continue to transport and fix the ribs.

[0077] A step further, such as Figure 7-Figure 9 As shown, the fixing assembly includes: an arc rod 19, which is slidably connected to the adjacent support plate 17 and fixed to the adjacent clamping plate 15, and an arc rack 20 is provided on the arc rod 19; a self-locking motor 21, which is provided on the support plate 17, and the output shaft of the self-locking motor 21 is fixedly connected to a gear meshing with the arc rack 20; a fourth hydraulic telescopic rod 24, which is ball-jointed between the adjacent mounting plate 14 and the adjacent support plate 17.

[0078] In the above scheme, the arc rod 19 is located on the right side of the adjacent support plate 17, and the center of the arc rod 19 is located on the intersection of the lower extension surface of the horizontal part of the adjacent support plate 17 and the extension surface of the adjacent clamping plate 15 away from the adjacent arc rod 19; the fixed part of the fourth hydraulic telescopic rod 24 is connected to the external hydraulic system.

[0079] The workflow of the above solution is as follows:

[0080] In the process of welding the ribs to the curved plates, the welding angles of some ribs are not right angles. Therefore, before transporting the ribs, the workers need to adjust the positions of the two support plates 17 according to the specified inclination angles of the ribs. The following describes the adjustment process of the front support plate 17 when the ribs need to be tilted forward as an example:

[0081] The staff will start the self-locking motor 21, and the output shaft of the self-locking motor 21 will mesh with the arc-shaped rack through the gear on it, so that the self-locking motor 21 drives the support plate 17 to move along the arc-shaped rod 19, even if the support plate 17 rotates clockwise ( Figure 8 The angle between the support plate 17 and the clamping plate 15 is reduced, and at the same time, the staff controls the external hydraulic system to choose how to change the position of the telescopic end of the fourth hydraulic telescopic rod 24 according to the change in the distance between the support plate 17 and the clamping plate 15, so that the overall length of the fourth hydraulic telescopic rod 24 can adapt to the change in the distance between the support plate 17 and the clamping plate 15.

[0082] After adjusting the angle between the support plate 17 and the clamping plate 15, the staff turns off the self-locking motor 21 to fix the support plate 17 in this position. At the same time, the staff controls the external hydraulic system to fix the telescopic end of the fourth hydraulic telescopic rod 24 in this position.

[0083] After adjusting the position of the front support plate 17, the staff changes the position of the rear support plate 17 according to the above operation, and the rotation direction of the rear support plate 17 is opposite to the rotation direction of the front support plate 17. After the positions of the two support plates 17 are adjusted (at this time the horizontal parts of the two support plates 17 are still on the same horizontal plane), the staff continues to clamp the rib plate according to the above operation. After clamping the rib plate, the staff controls the first electric shaft 131 to drive the mounting plate 14 to rotate, thereby rotating the rib plate to the installation angle, and welds the rib plate to the arc plate according to the above operation.

[0084] Thus far, this embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the welding auxiliary device for a mine hydraulic support according to the present invention. While the specific embodiments described above further illustrate the objectives, technical solutions, and beneficial effects of the present invention, it should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A welding auxiliary device for a mine hydraulic support, characterized in that: Includes: Bracket (1); A fixing frame (2) is fixedly connected to the bracket (1), and a sliding groove is provided on the fixing frame (2); An electric push rod (201) is mounted on the fixing frame (2), and a telescopic end of the electric push rod (201) is fixedly connected to an extrusion plate; The limiting blocks (3) are symmetrically distributed and can be detachably connected to the fixing frame (2). The limiting blocks (3) are composed of an arc portion and a horizontal portion. The opposite sides of the two limiting blocks (3) are both limitedly slidably connected to a plurality of moving blocks (4). The moving blocks (4) are fixedly connected to a first hydraulic telescopic rod (5). The telescopic ends of two adjacent first hydraulic telescopic rods (5) on different limiting blocks (3) are connected to a squeezing roller (6) for common rotation. The squeezing roller (6) slides in the slide groove of the fixing frame (2). The evenly distributed squeezing rollers (6) continuously squeeze and fix the arc portion of the arc plate during the welding process. The driving components have two symmetrically distributed components, which are respectively arranged on adjacent limiting blocks (3). The driving components are used to drive all the moving blocks (4) on the adjacent limiting blocks (3) to move.

2. The welding auxiliary device for a mine hydraulic support according to claim 1, characterized in that: The drive assembly includes: A driving motor (7) is mounted on the adjacent limiting block (3); an output shaft of the driving motor (7) is fixedly connected to a winding roller (8); and the winding roller (8) is rotatably connected to the adjacent limiting block (3); A traction rope (9) is wound around the winding roller (8), the traction rope (9) is fixedly connected to the moving block (4) on the adjacent limiting block (3) close to the driving motor (7), and a first elastic member (10) is fixedly connected between two adjacent moving blocks (4) on the same limiting block (3); The second elastic member (11) is fixedly connected between the moving block (4) away from the traction rope (9) and the limiting block (3).

3. The welding auxiliary device for a mine hydraulic support according to claim 2, characterized in that: The opposite sides of two adjacent moving blocks (4) on different limiting blocks (3) are fixed with a first connecting rod (111) and a second connecting rod (112), and the limiting block (3) is provided with a first limiting groove (113) and a second limiting groove (114), and the first limiting groove (113) and the second limiting groove (114) are both composed of a horizontal portion and an arc portion, and the first connecting rod (111) slides in the adjacent first limiting groove (113), and the second connecting rod (112) slides in the adjacent second limiting groove (114).

4. The welding auxiliary device for a mine hydraulic support according to claim 3, characterized in that: The centers of the circles where the arc-shaped portions of the first limiting groove (113) and the second limiting groove (114) are located coincide with each other, and the angles of the corresponding central angles of the arc-shaped portions of the two and the lengths of the horizontal portions are the same.

5. The welding auxiliary device for a mine hydraulic support according to claim 3, characterized in that: The second limiting groove (114) is provided with multiple steps, and the distance between two adjacent steps on two symmetrically distributed second limiting grooves (114) decreases as the distance between the step and the adjacent drive motor (7) increases.

6. The welding auxiliary device for a mine hydraulic support according to claim 3, characterized in that: The lengths of all the second connecting rods (112) on the same limiting block (3) increase as the distance between the second connecting rod (112) and the drive motor (7) increases, and the multi-step portion of the second limiting groove (114) is used to limit the second connecting rods (112) of different lengths respectively.

7. The welding auxiliary device for a mine hydraulic support according to claim 1, characterized in that: Also includes: A mounting block (12) is connected to the bracket (1) in a limited sliding manner, and the bracket (1) is provided with a driving module for driving the mounting block (12) to move; A second hydraulic telescopic rod (13) fixedly connected to the mounting block (12); A first electric rotating shaft (131) is provided at the telescopic end of the second hydraulic telescopic rod (13); A mounting plate (14) fixedly connected to the first electric rotating shaft (131); Two clamping plates (15) are symmetrically distributed and both are limitedly slidably connected to the mounting plate (14); The second electric rotating shaft (16) is arranged on the adjacent mounting plate (14), the second electric rotating shaft (16) is provided with an external thread, and the clamping plate (15) is threadedly connected to the external thread on the second electric rotating shaft (16).

8. The welding auxiliary device for a mine hydraulic support according to claim 7, characterized in that: An L-shaped plate is fixedly connected to the upper side of the clamping plate (15) for limiting the position of the workpiece.

9. The welding auxiliary device for a mine hydraulic support according to claim 7, characterized in that: Also includes: The support plates (17) have two symmetrically distributed ones, which are respectively arranged on opposite sides of the two mounting plates (14). A fixing assembly is provided between the support plate (17) and the adjacent clamping plate (15), and the fixing assembly is used to change the angle between the support plate (17) and the adjacent mounting plate (14).

10. The welding auxiliary device for a mine hydraulic support according to claim 9, characterized in that: The fixing assembly includes: An arc-shaped rod (19) is slidably connected to the adjacent support plate (17) and fixedly connected to the adjacent clamping plate (15), and an arc-shaped rack (20) is provided on the arc-shaped rod (19); a self-locking motor (21) disposed on the support plate (17), wherein the output shaft of the self-locking motor (21) is fixedly connected to a gear meshing with the arc-shaped rack (20); The fourth hydraulic telescopic rod (24) is spherically connected between the adjacent mounting plate (14) and the adjacent support plate (17).

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