A kind of assembly welding tool for belt conveyor angle steel type carrier roller support

Abstract

The present application relates to a kind of for belt conveyor angle steel type roller support assembly welding tool, assembly welding tool includes slide beam, end positioning assembly and middle positioning assembly, two sets of end positioning assembly and two sets of middle positioning assembly are mirror image slidingly arranged on the upper side of slide beam, positioning rod is arranged in parallel on the upper side of slide beam, positioning rod is divided into positive thread segment and reverse thread segment with the middle part as node, end positioning assembly includes end positioning frame, and the upper side of end positioning frame is provided with placement table, and the both sides of placement table are hingedly connected with clamping arm, and middle positioning assembly includes middle positioning frame, and lifting rod and pressing plate are longitudinally slidably arranged on the upper side of middle positioning frame.The present application is to solve or at least mitigate the problem that each accessory needs to be positioned separately when using conventional tool to weld belt conveyor roller support, and provide a kind of for belt conveyor angle steel type roller support assembly welding tool.

Description

Technical Field

[0001] This invention belongs to the technical field of welding auxiliary equipment, and in particular relates to a welding fixture for assembling angle steel idler roller supports for belt conveyors. Background Technology

[0002] The emergence of welding robots signifies the arrival of an era of automated assembly and interlocking in welding, necessitating the replacement of manual marking and positioning with automated clamping fixtures. Since conveyor belt angle steel roller supports are multi-variety, small-batch workpieces, fixture design requires greater flexibility and compatibility. Robotic welding has led to increasingly higher precision and speed requirements for many welded structural components, making the work increasingly difficult for ordinary workers. Furthermore, the electric arc, sparks, and fumes produced during welding can cause harm to the human body. The complexity of welding manufacturing processes, labor intensity, product quality, and batch requirements make the automation and mechanization of welding processes extremely urgent. Simultaneously, production planning is difficult to control, production costs are high, and production efficiency is low. Achieving automated robotic welding to replace manual welding has been the ideal and pursuit of generations of welders.

[0003] However, the manual welding of conveyor belt idler brackets is extremely labor-intensive and the welding quality does not meet the requirements for robotic welding. Conveyor belt idler brackets have many small components that need to be welded, most of which serve to install and fix the components, requiring accurate positioning. Current conventional tooling mostly fixes individual auxiliary components to the bracket body separately, requiring each component to be positioned individually. This not only results in low fixing efficiency but also fails to guarantee accurate positioning. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art, solve or at least alleviate the problem that each auxiliary component needs to be positioned separately when welding belt conveyor idler brackets using conventional tooling, and to provide a welding tooling for assembling angle steel idler brackets of belt conveyors.

[0005] This invention is achieved through the following technical solution: A welding fixture for an angle steel idler bracket for a belt conveyor includes a beam frame, side supports, a middle support, and a base plate. The beam frame is a long strip of angle steel. Two base plates are respectively arranged horizontally at the lower part of both ends of the beam frame. The side supports are 7-shaped, with the vertical section of the side support vertically arranged on the upper side of the end of the beam frame and the horizontal section of the side support facing the middle of the beam frame. The middle support is vertically arranged in the middle of the beam frame and is n-shaped with a slot at its upper end. The side supports and the middle support are two mirror images of each other. The welding fixture includes a sliding beam, end positioning components, and middle positioning components. The two sets of end positioning components and the two sets of middle positioning components are slidably arranged on the upper side of the sliding beam in a mirror image. The two sets of middle positioning components are located between the two sets of end positioning components. The slide beam is a long strip arranged horizontally. A positioning rod is arranged parallel to the upper side of the slide beam. Both ends of the positioning rod are rotatably mounted on the slide beam. The positioning rod is divided into a positive thread section and a negative thread section with its middle part as the node. There are two positioning rods arranged in parallel and spaced apart. The end positioning assembly includes an end positioning frame, which is slidably disposed on the upper side of the slide beam. The end positioning frames of the two end positioning assemblies are arranged in a mirror image of each other. The end positioning frames of the two end positioning assemblies are respectively threaded into the positive thread section and the negative thread section of one of the positioning rods and are slidably disposed on the other positioning rod. A placement platform is provided in the middle of the upper side of the end positioning frame. The middle of the placement platform has a square placement groove that is perpendicular to the end positioning frame. The bottom plate is slidably disposed in the placement groove along the length of the placement groove. Clamping arms are hinged on both sides of the placement platform. The two clamping arms hold the beam end, the bottom plate and the side support in a fixed state and place the bottom plate and the side support at the center of the beam. The central positioning component includes a central positioning frame, which is slidably disposed on the upper side of the slide beam. The central positioning frames of the two central positioning components are arranged in a mirror image of each other. The central positioning frames of the two central positioning components are respectively threaded onto the positive thread section and the negative thread section of the positioning rod that is slidably disposed on the end positioning frame, and are also slidably disposed on another positioning rod. A lifting rod and a pressure plate are longitudinally slidably disposed on the upper side of the central positioning frame. The lifting rod is located below the horizontal section of the central support column, and the pressure plate is located above the slot of the central support column. The lifting rod and the pressure plate fix the central support column to the upper side of the beam frame.

[0006] To further realize the present invention, the following technical solutions may be preferred: Preferably, a support platform is provided at the middle of the upper side of the slide beam, the upper surface of the support platform is flush with the upper surface of the placement platform, and the two positioning rods are rotatably mounted on the support platform at their middle parts; Both ends of the slide beam are provided with upward flanges, and both ends of the positioning rod are respectively rotatably mounted on the two flanges.

[0007] Preferably, the width and depth of the placement groove of the placement platform are equal to the width and thickness of the base plate, respectively, and the length of the placement platform is greater than the length of the base plate.

[0008] Preferably, a stop block is provided at one end of the placement platform away from the middle of the sliding beam. The stop block is U-shaped, and the length of the inner side of the vertical section of the stop block is equal to the width of the beam end. The two horizontal sections of the stop block face the middle of the sliding beam and are inclined outward.

[0009] Preferably, the stop block is slidably disposed in the end positioning frame along the length of the sliding beam, and the distance between the vertical section of the stop block and the placement groove is equal to the distance between the end of the beam frame and the bottom plate.

[0010] Preferably, the two clamping arms are arranged in a mirror image on both sides of the placement platform. Each clamping arm includes a positioning section and a clamping section. The positioning section is L-shaped and arranged along the vertical section and one of the horizontal sections of the stop block. The clamping section is a long strip and one end of it is fixedly connected to the end of the horizontal section of the positioning section. The connection between the positioning section and the clamping section is rotatably connected to the stop block. A torsion spring is provided at the junction of the clamping arm and the stop block. The torsion spring drives the clamping section to rotate outward. When the vertical section of the positioning section is flush with the vertical section of the stop block, the end of the clamping section clamps the beam frame and places the beam frame in the middle of the sliding beam, which in turn clamps the bottom plate and places the bottom plate in the middle of the sliding beam.

[0011] Preferably, the clamping section has a clamping rod arranged laterally at its end and a clamping plate arranged vertically on its lower middle side; one end of the clamping rod is connected to the end of the clamping section, and the end face of the other end is inclined. When the clamping section clamps the beam frame or the bottom plate, the length direction of the clamping rod is perpendicular to the length direction of the sliding beam, the end face of the clamping section is attached to the side of the beam frame, and the clamping plate is attached to the side of the bottom plate.

[0012] Preferably, a limiting rod is provided at the end of the clamping section. The limiting rod is in the shape of a "7". The lower end of the vertical section of the limiting rod is connected to the clamping section, and the horizontal section faces the middle of the sliding beam. The horizontal section of the limiting rod is located above the beam frame and its end face is provided with a concave limiting groove. When the clamping section clamps the beam or base plate, the horizontal end faces of the limiting rods of the two clamping sections are in contact with each other, the two limiting grooves form a limiting area, the vertical section of the side support is located in the limiting area, and each peripheral side of the side support slides and fits against each inner side of the limiting area.

[0013] Preferably, a support rod is vertically provided at the end of the horizontal section of the limiting rod, and the lower end of the support rod is connected to the limiting rod, while the upper end abuts against the horizontal section of the side support.

[0014] Preferably, a first lifting cylinder and a second lifting cylinder are vertically arranged on both sides of the central positioning frame. The fixed sections of the first lifting cylinder and the second lifting cylinder are fixedly connected to the central positioning frame, and their telescopic sections extend upward. The pressure plate is fixedly arranged between the ends of the telescopic sections of the two first lifting cylinders. The ends of the telescopic sections of the two second lifting cylinders are horizontally arranged with translation cylinders. The telescopic sections of the two translation cylinders extend toward the slide beam. The lifting rod is fixedly arranged at the ends of the telescopic sections of the translation cylinders.

[0015] The beneficial effects of the present invention through the above technical solution are: The end positioning components and the middle positioning components of the present invention are slidably mounted on the slide beam via positioning rods. Rotating the positioning rods can synchronously adjust the relative positions between the two end positioning components and the two middle positioning components to ensure the symmetry of the side support, middle support and base plate at both ends of the roller bracket.

[0016] The end positioning assembly of this invention includes a placement platform, a stop block, and a clamping arm to position the beam frame end together with the side support and the base plate. During fixed assembly, there is no need to specifically position the beam frame and the base plate. By adjusting the position of the two end positioning assemblies, when the stop block clamps the beam frame, the beam frame and the base plate are automatically centered and secured as a whole, while simultaneously limiting the lateral position of the side support. The overall positioning of all auxiliary components not only simplifies the fixing process but also ensures the positional accuracy between them. Attached Figure Description

[0017] Figure 1 This is a diagram showing the usage state of the present invention; Figure 2 For the present invention Figure 1 Top view; Figure 3 For the present invention Figure 2 Sectional view at point AA; Figure 4 For the present invention Figure 2 Sectional view at point BB; Figure 5 This is a schematic diagram of the slide beam and positioning rod of the present invention; Figure 6 This is a schematic diagram of the end positioning component of the present invention; Figure 7 This is a schematic diagram of the end positioning frame, placement platform, and stop block of the present invention; Figure 8 This is a schematic diagram of the clamping arm of the present invention; Figure 9 This is a schematic diagram of the structure of the central positioning component of the present invention; Figure 10 This is a schematic diagram of the structure of the roller bracket of the present invention; Wherein: 1-slide beam; 2-positioning rod; 3-end positioning frame; 4-placement platform; 5-clamping arm; 6-middle positioning frame; 7-lifting rod; 8-pressure plate; 9-support platform; 10-stop block; 11-clamping rod; 12-clamping plate; 13-limiting rod; 14-support rod; 15-first lifting cylinder; 16-second lifting cylinder; 17-translation cylinder; 18-roller bracket; 1801-beam frame; 1802-side support column; 1803-middle support column; 1804-base plate. Detailed Implementation

[0018] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0020] like Figures 1-10 As shown, a welding fixture for assembling angle steel idler brackets for belt conveyors is disclosed. The idler bracket 18 includes a beam frame 1801, side supports 1802, a middle support 1803, and a base plate 1804. The beam frame 1801 is a long strip of angle steel. Two base plates 1804 are respectively arranged laterally at the lower part of both ends of the beam frame 1801. The side supports 1802 are in the shape of a "7". The vertical section of the side support 1802 is vertically arranged on the upper side of the end of the beam frame 1801, and the horizontal section of the side support 1802 faces the beam frame. In the middle of the frame 1801, the central support column 1803 is vertically set in the middle of the beam frame 1801. The central support column 1803 is n-shaped and has a slot at its upper end. The side support column 1802 and the central support column 1803 are two relatively mirrored sets. The welding fixture includes a sliding beam 1, end positioning components and middle positioning components. The two sets of end positioning components and the two sets of middle positioning components are relatively mirrored and slidably set on the upper side of the sliding beam 1. The two sets of middle positioning components are located between the two sets of end positioning components. The slide beam 1 is a long strip arranged horizontally. A positioning rod 2 is arranged parallel to the upper side of the slide beam 1. Both ends of the positioning rod 2 are rotatably set on the slide beam 1. The positioning rod 2 is divided into a positive thread section and a negative thread section with the middle part as the node. There are two positioning rods 2 arranged in parallel and spaced apart. The end positioning assembly includes an end positioning frame 3, which is slidably disposed on the upper side of the slide beam 1. The end positioning frames 3 of the two end positioning assemblies are mirror images of each other. The end positioning frames 3 of the two end positioning assemblies are respectively threaded into the positive thread section and the negative thread section of one of the positioning rods 2 and are slidably disposed on the other positioning rod 2. A placement platform 4 is provided in the middle of the upper side of the end positioning frame 3. The middle of the placement platform 4 is perpendicular to the sliding square placement groove of the end positioning frame 3. The bottom plate 1804 is slidably disposed in the placement groove along the length of the placement groove. Clamping arms 5 are hinged on both sides of the placement platform 4. The two clamping arms 5 keep the end of the beam frame 1801, the bottom plate 1804 and the side support 1802 in a fixed state and place the bottom plate 1804 and the side support 1802 at the center of the beam frame 1801. The central positioning component includes a central positioning frame 6, which is slidably mounted on the upper side of the slide beam 1. The central positioning frames 6 of the two central positioning components are mirror images of each other. The central positioning frames 6 of the two central positioning components are respectively threaded onto the positive thread section and the negative thread section of the positioning rod 2 that is slidably mounted on the end positioning frame 3, and are also slidably mounted on another positioning rod 2. A lifting rod 7 and a pressure plate 8 are longitudinally slidably mounted on the upper side of the central positioning frame 6. The lifting rod 7 is located below the horizontal section of the central support column 1803, and the pressure plate 8 is located above the slot of the central support column 1803. The lifting rod 7 and the pressure plate 8 fix the central support column 1803 to the upper side of the beam frame 1801.

[0021] To ensure the stability of the beam frame 1801 placed on the sliding beam 1 and to prevent one end from tilting up, a support platform 9 is provided in the middle of the upper side of the sliding beam 1. The upper surface of the support platform 9 is flush with the upper surface of the placement platform 4, and the two positioning rods 2 are rotatably set on the support platform 9 in the middle. Both ends of the slide beam 1 are provided with upward flanges, and both ends of the positioning rod 2 are respectively rotatably set on the two flanges.

[0022] To facilitate defining the lateral position of the base plate 1804, the width and depth of the placement groove of the placement platform 4 are equal to the width and thickness of the base plate 1804, respectively, and the length of the placement platform 4 is greater than the length of the base plate 1804.

[0023] In order to integrate all the accessories at the end of the positioning platform 4, a stop block 10 is provided at the end away from the middle of the slide beam 1. The stop block 10 is U-shaped, and the length of the inner side of the vertical section of the stop block 10 is equal to the width of the end of the beam frame 1801. The two horizontal sections of the stop block 10 face the middle of the slide beam 1 and are inclined outward.

[0024] In order to optimize the product structure and make it suitable for different models of idler roller brackets 18, the preset distance value between the base plate 1804 and the end of the beam frame 1801 is adjusted. The stop block 10 is slidably set in the end positioning frame 3 along the length of the slide beam 1. The distance value between the vertical section of the stop block 10 and the placement groove is the same as the distance value between the end of the beam frame 1801 and the base plate 1804.

[0025] To further optimize the product structure, in this embodiment, two clamping arms 5 are arranged in a mirror image on both sides of the placement platform 4. The clamping arm 5 includes a positioning section and a clamping section. The positioning section is L-shaped and arranged along the vertical section and one of the horizontal sections of the stop block 10. The clamping section is a long strip and one end of it is fixedly connected to the horizontal end of the positioning section. The connection between the positioning section and the clamping section is laterally rotatably connected to the stop block 10. A torsion spring is provided at the junction of the clamping arm 5 and the stop block 10. The torsion spring drives the clamping section to rotate outward. When the vertical section of the positioning section is flush with the vertical section of the stop block 10, the end of the clamping section clamps the beam frame 1801 and places the beam frame 1801 in the middle of the sliding beam 1, which clamps the bottom plate 1804 and places the bottom plate 1804 in the middle of the sliding beam 1.

[0026] To ensure positioning accuracy, a clamping rod 11 is horizontally arranged at the end of the clamping section, and a clamping plate 12 is vertically arranged on the lower side of the middle section. One end of the clamping rod 11 is connected to the end of the clamping section, and the end face of the other end is inclined. When the clamping section clamps the beam frame 1801 or the base plate 1804, the length direction of the clamping rod 11 is perpendicular to the length direction of the sliding beam 1, the end face of the clamping section is attached to the side of the beam frame 1801, and the clamping plate 12 is attached to the side of the base plate 1804.

[0027] To facilitate the lateral positioning of the side support 1802, a limiting rod 13 is provided at the end of the clamping section. The limiting rod 13 is in the shape of a 7. The lower end of the vertical section of the limiting rod 13 is connected to the clamping section, and the horizontal section faces the middle of the sliding beam 1. The horizontal section of the limiting rod 13 is located above the beam frame 1801 and its end face is provided with a concave limiting groove. When the clamping section clamps the beam frame 1801 or the base plate 1804, the horizontal end faces of the limiting rods 13 of the two clamping sections are in contact with each other, and the two limiting grooves form a limiting area. The vertical section of the side support 1802 is located in the limiting area, and each peripheral side of the side support 1802 slides and is in contact with each inner side of the limiting area.

[0028] To facilitate positioning the longitudinal position of the side support 1802, a support rod 14 is vertically provided at the end of the horizontal section of the limiting rod 13. The lower end of the support rod 14 is connected to the limiting rod 13, and the upper end abuts against the horizontal section of the side support 1802.

[0029] To facilitate the positioning of the central support column 1803, in this embodiment, a first lifting cylinder 15 and a second lifting cylinder 16 are vertically arranged on both sides of the central positioning frame 6. The fixed sections of the first lifting cylinder 15 and the second lifting cylinder 16 are fixedly connected to the central positioning frame 6, and their telescopic sections extend upward. The pressure plate 8 is fixedly arranged between the ends of the telescopic sections of the two first lifting cylinders 15. The ends of the telescopic sections of the two second lifting cylinders 16 are horizontally arranged with translation cylinders 17. The telescopic sections of the two translation cylinders 17 extend toward the slide beam 1. The lifting rod 7 is fixedly arranged at the ends of the telescopic sections of the translation cylinders 17.

[0030] The end positioning components and the middle positioning components of the present invention are slidably mounted on the slide beam 1 via positioning rods 2. Rotating the positioning rods 2 can synchronously adjust the relative positions between the two end positioning components and the two middle positioning components to ensure the symmetry of the side support pillars 1802, the middle support pillars 1803 and the base plate 1804 at both ends of the roller bracket 18.

[0031] The end positioning assembly of this invention includes a placement platform 4, a stop block 10, and a clamping arm 5, which positions the end of the beam frame 1801 together with the side support column 1802 and the base plate 1804. During fixed assembly, there is no need to specifically position the beam frame 1801 and the base plate 1804. By adjusting the position of the two end positioning assemblies, when the stop block 10 clamps the beam frame 1801, the beam frame 1801 and the base plate 1804 are automatically centered and secured as a whole, while simultaneously limiting the lateral position of the side support column 1802. The overall positioning of all auxiliary components not only simplifies the fixing process but also ensures the positional accuracy between them.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding fixture for assembling angle steel idler brackets for belt conveyors, the idler bracket (18) comprising a beam frame (1801), side supports (1802), a middle support (1803), and a base plate (1804), wherein the beam frame (1801) is a long strip of angle steel, and two base plates (1804) are respectively arranged laterally at the lower part of both ends of the beam frame (1801), the side supports (1802) are 7-shaped, the vertical section of the side supports (1802) is vertically arranged on the upper side of the end of the beam frame (1801), and the horizontal section of the side supports (1802) faces the middle of the beam frame (1801), the middle support (1803) is vertically arranged in the middle of the beam frame (1801), the middle support (1803) is n-shaped and has a slot at its upper end, and the side supports (1802) and the middle support (1803) are two relatively mirror-image arranged, characterized in that, The welding fixture includes a slide beam (1), end positioning components and middle positioning components. The two sets of end positioning components and the two sets of middle positioning components are relatively mirror-slidably arranged on the upper side of the slide beam (1), and the two sets of middle positioning components are located between the two sets of end positioning components. The slide beam (1) is a long strip arranged horizontally. A positioning rod (2) is arranged parallel to the upper side of the slide beam (1). Both ends of the positioning rod (2) are rotatably arranged on the slide beam (1). The positioning rod (2) is divided into a positive thread section and a negative thread section with its middle part as the node. There are two positioning rods (2) arranged in parallel and spaced apart. The end positioning component includes an end positioning frame (3), which is slidably disposed on the upper side of the slide beam (1). The end positioning frames (3) of the two end positioning components are mirror images of each other. The end positioning frames (3) of the two end positioning components are respectively threaded into the positive thread section and the negative thread section of one of the positioning rods (2) and are slidably disposed on the other positioning rod (2). A placement platform (4) is provided in the middle of the upper side of the end positioning frame (3). The middle of the placement platform (4) is perpendicular to the sliding square placement groove of the end positioning frame (3). The bottom plate (1804) is slidably disposed in the placement groove along the length of the placement groove. Clamping arms (5) are hinged on both sides of the placement platform (4). The two clamping arms (5) keep the end of the beam frame (1801), the bottom plate (1804) and the side support (1802) in a fixed state and place the bottom plate (1804) and the side support (1802) at the center of the beam frame (1801). The middle positioning component includes a middle positioning frame (6), which is slidably disposed on the upper side of the slide beam (1). The middle positioning frames (6) of the two middle positioning components are mirror images of each other. The middle positioning frames (6) of the two middle positioning components are respectively threaded onto the positive thread section and the negative thread section of the positioning rod (2) that is slidably disposed on the end positioning frame (3) and are also slidably disposed on the other positioning rod (2). A lifting rod (7) and a pressure plate (8) are longitudinally slidably disposed on the upper side of the middle positioning frame (6). The lifting rod (7) is located on the lower side of the horizontal section of the middle support column (1803), and the pressure plate (8) is located on the upper side of the slot of the middle support column (1803). The lifting rod (7) and the pressure plate (8) fix the middle support column (1803) to the upper side of the beam frame (1801). The placement platform (4) is provided with a stop block (10) at one end away from the middle of the sliding beam (1). The stop block (10) is U-shaped. The length of the inner side of the vertical section of the stop block (10) is equal to the width of the end of the beam frame (1801). The two horizontal sections of the stop block (10) are oriented toward the middle of the sliding beam (1) and tilted outward. Two clamping arms (5) are arranged in a mirror image on both sides of the placement platform (4). Each clamping arm (5) includes a positioning section and a clamping section. The positioning section is L-shaped and arranged along the vertical section and one of the horizontal sections of the stop block (10). The clamping section is a long strip and one end is fixedly connected to the horizontal end of the positioning section. The connection between the positioning section and the clamping section is rotatably connected to the stop block (10). A torsion spring is provided at the junction of the clamping arm (5) and the stop block (10). The torsion spring drives the clamping section to rotate outward. When the vertical section of the positioning section is flush with the vertical section of the stop block (10), the end of the clamping section clamps the beam frame (1801) and places the beam frame (1801) in the middle of the sliding beam (1), which clamps the bottom plate (1804) and places the bottom plate (1804) in the middle of the sliding beam (1); The clamping section has a clamping rod (11) arranged laterally at the end and a clamping plate (12) arranged vertically on the lower side of the middle. One end of the clamping rod (11) is connected to the end of the clamping section, and the end face of the other end is inclined. When the clamping section clamps the beam frame (1801) or the bottom plate (1804), the length direction of the clamping rod (11) is perpendicular to the length direction of the sliding beam (1), the end face of the clamping section is attached to the side of the beam frame (1801), and the clamping plate (12) is attached to the side of the bottom plate (1804). The clamping section is provided with a limiting rod (13) at the end. The limiting rod (13) is in the shape of a 7. The lower end of the vertical section of the limiting rod (13) is connected to the clamping section, and the horizontal section faces the middle of the sliding beam (1). The horizontal section of the limiting rod (13) is located above the beam frame (1801) and its end face is provided with a concave limiting groove. When the clamping section clamps the beam frame (1801) or the base plate (1804), the horizontal end faces of the limiting rods (13) of the two clamping sections are in contact with each other, the two limiting grooves form a limiting area, the vertical section of the side support (1802) is located in the limiting area, and each peripheral side of the side support (1802) slides and fits against each inner side of the limiting area.

2. The welding fixture for assembling angle steel idler roller supports for belt conveyors according to claim 1, characterized in that, A support platform (9) is provided on the upper middle part of the slide beam (1). The upper surface of the support platform (9) is flush with the upper surface of the placement platform (4). The two positioning rods (2) are rotatably set on the support platform (9) in the middle. Both ends of the slide beam (1) are provided with upward flanges, and both ends of the positioning rod (2) are respectively rotatably set on the two flanges.

3. The welding fixture for the assembly of angle steel idler roller supports for belt conveyors according to claim 1, characterized in that, The width and depth of the placement slot of the placement platform (4) are equal to the width and thickness of the base plate (1804), respectively, and the length of the placement platform (4) is greater than the length of the base plate (1804).

4. The welding fixture for the assembly of angle steel idler roller supports for belt conveyors according to claim 1, characterized in that, The stop block (10) is slidably mounted on the end positioning frame (3) along the length of the slide beam (1). The distance between the vertical section of the stop block (10) and the placement groove is equal to the distance between the end of the beam frame (1801) and the bottom plate (1804).

5. The welding fixture for an angle steel idler bracket of a belt conveyor according to claim 1, characterized in that, The horizontal section of the limiting rod (13) is vertically provided with a support rod (14), the lower end of the support rod (14) is connected to the limiting rod (13), and the upper end abuts against the horizontal section of the side support (1802).

6. The welding fixture for the assembly of angle steel idler roller supports for belt conveyors according to claim 1, characterized in that, The middle positioning frame (6) is vertically provided with a first lifting cylinder (15) and a second lifting cylinder (16) on both sides. The fixed sections of the first lifting cylinder (15) and the second lifting cylinder (16) are fixedly connected to the middle positioning frame (6), and their telescopic sections extend upward. The pressure plate (8) is fixedly provided between the ends of the telescopic sections of the two first lifting cylinders (15). The ends of the telescopic sections of the two second lifting cylinders (16) are horizontally provided with translation cylinders (17). The telescopic sections of the two translation cylinders (17) extend toward the slide beam (1). The lifting rod (7) is fixedly provided at the ends of the telescopic sections of the translation cylinders (17).

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