A kind of guaranteeing belt conveyor roller support each mounting point relative position assembly welding tooling

Abstract

This invention relates to a welding fixture for ensuring the relative positions of various mounting points of a belt conveyor idler bracket. The welding fixture includes a sliding beam and a positioning beam. A clamping assembly is slidably disposed on the upper side of the sliding beam along its length. A side positioning assembly and a center positioning assembly are slidably disposed on the positioning beam along its length. The clamping assembly includes a clamping frame, and a placement platform is disposed at the center of the upper side of the clamping frame. A stop block is disposed at the center of the end of the placement platform away from the center of the sliding beam. A pressure arm is longitudinally hinged at the center of the upper part of the stop block. The side positioning assembly and the center positioning assembly each include a side positioning block and a center positioning block, respectively. The side positioning plate is pin-positioned to the side mounting plate and the top mounting plate, and the center positioning plate is pin-positioned to the center mounting plate. The purpose of this invention is to solve or at least alleviate the problem of needing to individually position each auxiliary component when welding belt conveyor idler brackets using conventional tooling, and to provide a welding fixture for ensuring the relative positions of various mounting points of a belt conveyor idler bracket.

Description

Technical Field

[0001] This invention belongs to the technical field of welding auxiliary equipment, and in particular relates to a welding fixture for ensuring the relative positions of each installation point of the belt conveyor roller bracket. 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, 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 numerous components, most of which serve to install and fix them, 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 individually positioned when welding belt conveyor roller brackets using conventional tooling, and provide a welding tooling that ensures the relative positions of each installation point of the belt conveyor roller bracket.

[0005] This invention is achieved through the following technical solution: A welding fixture for ensuring the relative positions of the mounting points of a belt conveyor idler bracket, the idler bracket including a beam frame, side supports, a middle support, and a bottom mounting plate. The beam frame is a long strip of angle steel. Two bottom mounting plates are respectively horizontally arranged at the lower ends of the beam frame. The side supports are L-shaped, with their vertical sections vertically arranged on the upper side of the beam frame ends and their horizontal sections 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. Side mounting plates and middle mounting plates are respectively horizontally arranged on the inner side of the vertical section of the side supports and the inner side of the vertical section of the middle support. The side mounting plate and the middle mounting plate are located at the same height. A top mounting plate is provided on the lower side of the horizontal section end of the side support. The side mounting plate, the middle mounting plate and the top mounting plate are all provided with mounting holes. The welding fixture includes a sliding beam and a positioning beam. The sliding beam and the positioning beam are both horizontally arranged long strips. The positioning beam is longitudinally slidably arranged on one side of the sliding beam and is arranged parallel to the sliding beam. A clamping component is slidably arranged on the upper side of the sliding beam along its length direction. The positioning beam is slidably arranged with a side positioning component and a middle positioning component along its length direction. The clamping component, the side positioning component and the middle positioning component are two sets arranged in a relatively mirrored manner. The two sets of middle positioning components are located between the two sets of side positioning components. The clamping assembly includes a clamping frame, which is slidably disposed on the upper side of the slide beam. The clamping frames of the two clamping assemblies are arranged in a mirror image of each other. A placement platform is provided in the middle of the upper side of the clamping frame. A placement groove is provided in the middle of the placement platform. The bottom mounting plate is fitted into the placement groove. A stop block is provided in the middle of the end of the placement platform away from the middle of the slide beam. A pressure arm is longitudinally hinged at the upper center of the stop block. The pressure arm presses the end of the beam frame against the placement platform and places the beam frame in the center of the slide beam. The side positioning component and the center positioning component each include a side positioning block and a center positioning block. Both the side positioning block and the center positioning block are slidably disposed within the positioning beam. The side positioning blocks of the two side positioning components and the center positioning blocks of the two center positioning components are arranged in a mirror image of each other. A side positioning plate and a center positioning plate are respectively disposed on one side of the side positioning block and one side of the center positioning block. The side positioning plate is pin-positioned connected to the side mounting plate and the top mounting plate, and the center positioning plate is pin-positioned connected to the center mounting plate.

[0006] To further realize the present invention, the following technical solutions may be preferred: Preferably, a clamping rod is arranged parallel to the upper side of the slide beam, and two positioning rods are arranged parallel to the positioning beam. Both ends of the clamping rod are rotatably mounted on the slide beam, and both ends of the positioning rods are rotatably mounted on the positioning beam. The clamping rod and the positioning rod are divided into a positive thread section and a negative thread section with their middle parts as nodes.

[0007] Preferably, the clamping frames of the two clamping assemblies are respectively threaded onto the positive thread section and the negative thread section of the clamping rod; The side positioning blocks of the two side positioning components are respectively threaded onto the positive thread segment and the negative thread segment of one of the positioning rods, and the middle positioning blocks of the two middle positioning components are respectively threaded onto the positive thread segment and the negative thread segment of the other positioning rod.

[0008] 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 clamping frame placement platform, and the middle of the clamping rod is rotatably mounted on the support platform.

[0009] Preferably, the width, depth, and length of the placement groove of the placement platform are equal to the width, thickness, and length of the bottom mounting plate, respectively.

[0010] Preferably, the stop block is a vertically arranged flat plate, and the stop block is correspondingly arranged at the end of the beam frame; When the two clamping assemblies clamp the beam, both ends of the beam are respectively attached to the stops of the two clamping assemblies.

[0011] Preferably, the pressure arm includes a positioning section and a pressing section. The positioning section is a flat plate arranged along the stop block. The upper part of the positioning section is longitudinally hinged to the stop block. A torsion spring is provided at the hinge point between the positioning section and the stop block. The torsion spring drives the pressing section to rotate to the side away from the stop block. One end of the pressing section is fixedly connected to the upper end of the positioning section, and the other end is shaped like a ∧. When the positioning section is flush with the stop block, the end of the pressing section presses the beam frame and places the beam frame in the middle of the sliding beam.

[0012] Preferably, the clamping frame is provided with limit strips on both sides of the placement platform, and both limit strips are arranged along the length of the slide beam and are mirror images of each other with the center plane of the slide beam as the center. The distance between the two limiting strips is less than the sum of the width of the lower end of the beam and the width of the lower end of the clamping section.

[0013] Preferably, the side positioning plate is in the shape of a 1, with the lower horizontal section of the side positioning plate attached to the lower side of the side mounting plate, and the upper horizontal section of the side positioning plate attached to the upper side of the top mounting plate. The middle positioning plate is flat and fits against the lower side of the middle mounting plate.

[0014] Preferably, a lifting mechanism is provided between the positioning beam and the sliding beam. The lifting mechanism includes a lifting screw, which is vertically arranged. The lower end of the lifting screw is rotatably disposed on the sliding beam, and the middle part is threadedly fitted onto the positioning beam.

[0015] The beneficial effects of the present invention through the above technical solution are: During welding, the side mounting plates and top mounting plates are pre-welded to the side supports, and the middle mounting plate is pre-welded to the middle support. Current tooling positioning can only ensure the relative positions of the beam frame, side supports, and middle supports. However, in actual installation and use of the idler roller bracket, it is more important to ensure the relative positions of the side mounting plates, middle mounting plates, top mounting plates, and bottom mounting plates.

[0016] The clamping assembly of this invention includes a placement platform, a stop block, and a pressure arm. During fixed assembly, there is no need to specifically position the beam frame and the bottom mounting plate. By simultaneously adjusting the positions of the two clamping components, the clamping frame moves the stop block and the pressure arm closer to the end of the beam frame until the end of the beam frame abuts against the positioning section of the pressure arm and the positioning section is flush with the stop block. At this point, the pressing section of the pressure arm flips downward to press the beam frame firmly onto the placement platform. Simultaneously, during the downward pressing process, the pressing section automatically positions the beam frame at the center of the sliding beam. This not only simplifies the positioning steps but also ensures the positional state of the bottom mounting plate relative to the beam frame.

[0017] In this invention, the side positioning assembly and the middle positioning assembly are slidably mounted on the positioning beam via positioning rods. Rotating the positioning rods synchronously adjusts the relative positions between the two side positioning assemblies and the two middle positioning assemblies, ensuring the lateral positional relationship of the side mounting plate, the middle mounting plate, and the top mounting plate. By adjusting the height of the positioning beam relative to the sliding beam, the longitudinal position of the side mounting plate, the middle mounting plate, and the top mounting plate is adjusted as a whole, ensuring the longitudinal positional relationship of the side mounting plate, the middle mounting plate, the top mounting plate, and the bottom mounting plate. Attached Figure Description

[0018] 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 For the present invention Figure 3 Enlarged view of point C in the middle; Figure 6 This is a schematic diagram of the slide beam and clamping rod of the present invention; Figure 7 This is a schematic diagram of the clamping assembly of the present invention; Figure 8 This is a schematic diagram of the clamping frame, placement platform, and stop block of the present invention; Figure 9 This is a schematic diagram of the pressure arm of the present invention; Figure 10 This is a schematic diagram of the structure of the edge positioning block and the edge positioning plate of the present invention; Figure 11 This is a schematic diagram of the structure of the center positioning block and center positioning plate of the present invention. Figure 12 This is a schematic diagram of the structure of the roller bracket of the present invention; Wherein: 1-slide beam; 2-positioning beam; 3-clamping frame; 4-placement platform; 5-stop block; 6-pressure arm; 7-side positioning block; 8-middle positioning block; 9-side positioning plate; 10-middle positioning plate; 11-clamping rod; 12-positioning rod; 13-limiting strip; 14-lifting screw; 15-roller bracket; 601-positioning section; 602-pressing section; 1501-beam frame; 1502-side support column; 1503-middle support column; 1504-bottom mounting plate; 1505-side mounting plate; 1506-middle mounting plate; 1507-top mounting plate. Detailed Implementation

[0019] 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.

[0020] 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

[0021] like Figures 1-12As shown, a welding fixture for ensuring the relative positions of each installation point of a belt conveyor idler bracket 15 is disclosed. The idler bracket 15 includes a beam frame 1501, side supports 1502, a middle support 1503, and a bottom mounting plate 1504. The beam frame 1501 is a long strip of angle steel. Two bottom mounting plates 1504 are respectively arranged laterally at the lower ends of the beam frame 1501. The side supports 1502 are 7-shaped, with their vertical sections vertically positioned on the upper side of the end of the beam frame 1501. The horizontal sections of the side supports 1502 face the middle of the beam frame 1501. The middle support 1503 is vertically positioned in the middle of the beam frame 1501. The middle support 1503 is n-shaped and has a slot at its upper end. The side supports 1502 and the middle support 1503 are two mirror images of each other. The inner sides of the vertical sections of the side supports 1502 and the inner sides of the vertical sections of the middle support 1503 are separated. The side mounting plate 1505 and the middle mounting plate 1506 are arranged horizontally, and the side mounting plate 1505 and the middle mounting plate 1506 are located at the same height. The bottom side of the horizontal section of the side support 1502 is provided with a top mounting plate 1507. The side mounting plate 1505, the middle mounting plate 1506 and the top mounting plate 1507 are all provided with mounting holes. The welding fixture includes a sliding beam 1 and a positioning beam 2. The sliding beam 1 and the positioning beam 2 are both horizontally arranged long strips. The positioning beam 2 is longitudinally slidably arranged on one side of the sliding beam 1 and is arranged parallel to the sliding beam 1. A clamping component is slidably arranged on the upper side of the sliding beam 1 along its length direction. The positioning beam 2 is slidably arranged with a side positioning component and a middle positioning component along its length direction. The clamping component, the side positioning component and the middle positioning component are two sets arranged in a relatively mirrored manner. The two sets of middle positioning components are located between the two sets of side positioning components. The clamping assembly includes a clamping frame 3, which is slidably disposed on the upper side of the slide beam 1. The clamping frames 3 of the two clamping assemblies are mirror images of each other. A placement platform 4 is provided in the middle of the upper side of the clamping frame 3. A placement groove is provided in the middle of the placement platform 4. The bottom mounting plate 1504 is fitted into the placement groove. A stop block 5 is provided in the middle of the end of the placement platform 4 away from the middle of the slide beam 1. A pressure arm 6 is longitudinally hinged at the upper center of the stop block 5. The pressure arm 6 presses the end of the beam frame 1501 against the placement platform 4 and places the beam frame 1501 in the center of the slide beam 1. The side positioning component and the middle positioning component each include a side positioning block 7 and a middle positioning block 8. Both the side positioning block 7 and the middle positioning block 8 are slidably disposed within the positioning beam 2. The side positioning blocks 7 of the two side positioning components and the middle positioning blocks 8 of the two middle positioning components are arranged in a mirror image relative to each other. A side positioning plate 9 and a middle positioning plate 10 are respectively provided on one side of the side positioning block 7 and one side of the middle positioning block 8. The side positioning plate 9 is pin-positioned connected to the side mounting plate 1505 and the top mounting plate 1507, and the middle positioning plate 10 is pin-positioned connected to the middle mounting plate 1506.

[0022] In order to simultaneously adjust the lateral position of the two clamping frames 3 at both ends of the slide beam 1 and the lateral position of the two side positioning blocks 7 and the two middle positioning blocks 8 at both ends of the positioning beam 2, a clamping rod 11 is arranged parallel to the upper side of the slide beam 1, and two positioning rods 12 are arranged parallel to the positioning beam 2. Both ends of the clamping rod 11 are rotatably set on the slide beam 1, and both ends of the positioning rod 12 are rotatably set on the positioning beam 2. The clamping rod 11 and the positioning rod 12 are divided into a positive thread section and a negative thread section with their middle parts as nodes. The clamping frames 3 of the two clamping components are respectively threaded onto the positive thread section and the negative thread section of the clamping rod 11; The side positioning blocks 7 of the two side positioning components are respectively threaded onto the positive thread section and the negative thread section of one of the positioning rods 12, and the middle positioning blocks 8 of the two middle positioning components are respectively threaded onto the positive thread section and the negative thread section of the other positioning rod 12.

[0023] To ensure the stability of the beam frame 1501 placed on the sliding beam 1, a support platform is provided in the middle of the upper side of the sliding beam 1. The upper surface of the support platform is flush with the upper surface of the placement platform 4 of the clamping frame 3, and the clamping rod 11 is rotatably mounted on the support platform in the middle.

[0024] To ensure the position of the bottom mounting plate 1504 relative to the beam frame 1501, the width, depth, and length of the placement groove of the placement platform 4 are equal to the width, thickness, and length of the bottom mounting plate 1504, respectively.

[0025] In order to optimize the product structure, in this embodiment, the stop block 5 is a vertically arranged flat plate, and the stop block 5 is correspondingly arranged at the end of the beam frame 1501; When the two clamping components clamp the beam frame 1501, both ends of the beam frame 1501 are respectively attached to the stops 5 of the two clamping components.

[0026] The pressure arm 6 includes a positioning section 601 and a pressing section 602. The positioning section 601 is a flat plate arranged along the stop block 5. The upper part of the positioning section 601 is longitudinally hinged to the stop block 5. A torsion spring is provided at the hinge point between the positioning section 601 and the stop block 5. The torsion spring drives the pressing section 602 to rotate to the side away from the stop block 5. One end of the pressing section 602 is fixedly connected to the upper end of the positioning section 601, and the other end is ∧-shaped. When the positioning section 601 is flush with the stop block 5, the end of the pressing section 602 presses the beam frame 1501 and places the beam frame 1501 in the middle of the sliding beam 1.

[0027] In order to prevent the clamping section 602 from failing to press down on the beam frame 1501, limit strips 13 are provided on both sides of the placement platform 4 of the clamping frame 3. Both limit strips 13 are set along the length of the sliding beam 1 and are mirror images of each other with the center plane of the sliding beam 1 as the center. The distance between the two limiting strips 13 is less than the sum of the width of the lower end of the beam frame 1501 and the width of the lower end of the clamping section 602.

[0028] The product structure is further optimized. The side positioning plate 9 is in the shape of []. The lower horizontal section of the side positioning plate 9 is attached to the lower side of the side mounting plate 1505, and the upper horizontal section of the side positioning plate 9 is attached to the upper side of the top mounting plate 1507. The center positioning plate 10 is flat and fits against the lower side of the center mounting plate 1506.

[0029] To facilitate the adjustment of the height of the positioning beam 2, a lifting mechanism is provided between the positioning beam 2 and the sliding beam 1. The lifting mechanism includes a lifting screw 14, which is vertically arranged. The lower end of the lifting screw 14 is rotatably mounted on the sliding beam 1, and the middle part is threaded onto the positioning beam 2.

[0030] During welding, the side mounting plate 1505 and the top mounting plate 1507 are pre-welded to the side support 1502, and the middle mounting plate 1506 is pre-welded to the middle support 1503. The current tooling positioning can only ensure the relative positions of the beam frame 1501, the side support 1502, and the middle support 1503. However, in actual installation and use, it is more important to ensure the relative positions of the side mounting plate 1505, the middle mounting plate 1506, the top mounting plate 1507, and the bottom mounting plate 1504.

[0031] The clamping assembly of this invention is provided with a placement platform 4, a stop block 5, and a pressure arm 6. During fixed assembly, there is no need to specifically position the beam 2 frame and the bottom mounting plate 1504. By synchronously adjusting the positions of the two clamping assemblies, the clamping frame 3 moves the stop block 5 and the pressure arm 6 closer to the end of the beam frame 1501 until the end of the beam frame 1501 abuts against the positioning section 601 of the pressure arm 6 and the positioning section 601 is flush with the stop block 5. At this time, the pressing section 602 of the pressure arm 6 flips downward to press the beam frame 1501 tightly onto the placement platform 4. At the same time, during the pressing process, the pressing section 602 automatically positions the beam frame 1501 at the center of the sliding beam 1. This not only simplifies the positioning steps but also ensures the positional state of the bottom mounting plate 1504 relative to the beam frame 1501.

[0032] The side positioning assembly and the middle positioning assembly of the present invention are slidably mounted on the positioning beam 2 via positioning rods 12. Rotating the positioning rods 12 can synchronously adjust the relative positions between the two side positioning assemblies and the two middle positioning assemblies to ensure the lateral positional relationship of the side mounting plate 1505, the middle mounting plate 1506, and the top mounting plate 1507. By adjusting the height of the positioning beam 2 relative to the sliding beam 1, the longitudinal position of the side mounting plate 1505, the middle mounting plate 1506, and the top mounting plate 1507 is adjusted as a whole to ensure the longitudinal positional relationship of the side mounting plate 1505, the middle mounting plate 1506, the top mounting plate 1507, and the bottom mounting plate 1504.

[0033] 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 ensuring the relative positions of each installation point of a belt conveyor idler bracket, the idler bracket (15) comprising a beam frame (1501), side supports (1502), a middle support (1503), and a bottom mounting plate (1504), wherein the beam frame (1501) is a long strip of angle steel, and two bottom mounting plates (1504) are respectively arranged laterally at the lower ends of the beam frame (1501), the side supports (1502) are in the shape of a "7", the vertical section of the side support (1502) is vertically arranged on the upper side of the end of the beam frame (1501), and the horizontal section of the side support (1502) faces the middle of the beam frame (1501), and the middle support (1503) is vertically arranged on the beam frame (1501). In the middle section, the central support column (1503) is n-shaped and has a slot at its upper end. The side support columns (1502) and the central support column (1503) are two mirror images of each other. Side mounting plates (1505) and middle mounting plates (1506) are horizontally arranged on the inner side of the vertical section of the side support column (1502) and the inner side of the vertical section of the central support column (1503), respectively. The side mounting plates (1505) and the middle mounting plates (1506) are located at the same height. A top mounting plate (1507) is provided on the lower side of the horizontal section end of the side support column (1502). The side mounting plates (1505), the middle mounting plates (1506), and the top mounting plates (1507) are all provided with mounting holes. The welding fixture includes a sliding beam (1) and a positioning beam (2). Both the sliding beam (1) and the positioning beam (2) are horizontally arranged long strips. The positioning beam (2) is longitudinally slidably arranged on one side of the sliding beam (1) and parallel to the sliding beam (1). A clamping component is slidably arranged on the upper side of the sliding beam (1) along its length direction. The positioning beam (2) is slidably arranged with a side positioning component and a middle positioning component along its length direction. The clamping component, the side positioning component, and the middle positioning component are two sets arranged in a relatively mirror image. The two sets of middle positioning components are located between the two sets of side positioning components. The clamping assembly includes a clamping frame (3), which is slidably disposed on the upper side of the slide beam (1). The clamping frames (3) of the two clamping assemblies are mirror images of each other. A placement platform (4) is provided in the middle of the upper side of the clamping frame (3). A placement groove is provided in the middle of the placement platform (4). The bottom mounting plate (1504) is fitted into the placement groove. A stop block (5) is provided in the middle of one end of the placement platform (4) away from the middle of the slide beam (1). A pressure arm (6) is longitudinally hinged at the upper center of the stop block (5). The pressure arm (6) presses the end of the beam frame (1501) onto the placement platform (4) and places the beam frame (1501) at the center of the slide beam (1). The side positioning component and the middle positioning component respectively include a side positioning block (7) and a middle positioning block (8). The side positioning block (7) and the middle positioning block (8) are slidably disposed in the positioning beam (2). The side positioning blocks (7) of the two side positioning components and the middle positioning blocks (8) of the two middle positioning components are mirror images of each other. A side positioning plate (9) and a middle positioning plate (10) are respectively provided on one side of the side positioning block (7) and one side of the middle positioning block (8). The side positioning plate (9) is pin-positioned connected to the side mounting plate (1505) and the top mounting plate (1507). The middle positioning plate (10) is pin-positioned connected to the middle mounting plate (1506). A clamping rod (11) is arranged parallel to the upper side of the slide beam (1), and two positioning rods (12) are arranged parallel to the positioning beam (2). Both ends of the clamping rod (11) are rotatably set on the slide beam (1), and both ends of the positioning rod (12) are rotatably set on the positioning beam (2). The clamping rod (11) and the positioning rod (12) are divided into a positive thread section and a negative thread section with their middle parts as nodes. The pressure arm (6) includes a positioning section (601) and a pressing section (602). The positioning section (601) is a flat plate arranged along the stop block (5). The upper part of the positioning section (601) is longitudinally hinged to the stop block (5). A torsion spring is provided at the hinge point between the positioning section (601) and the stop block (5). The torsion spring drives the pressing section (602) to rotate to the side away from the stop block (5). One end of the pressing section (602) is fixedly connected to the upper end of the positioning section (601), and the other end is ∧-shaped. When the positioning section (601) is flush with the stop block (5), the end of the pressing section (602) presses the beam frame (1501) and places the beam frame (1501) in the middle of the sliding beam (1).

2. The welding fixture for ensuring the relative positions of each mounting point of the belt conveyor idler bracket according to claim 1, characterized in that, The clamping frames (3) of the two clamping assemblies are respectively threaded onto the positive thread section and the negative thread section of the clamping rod (11); The two edge positioning blocks (7) of the two edge positioning components are respectively threaded onto the positive thread segment and the negative thread segment of one of the positioning rods (12), and the two center positioning blocks (8) of the two center positioning components are respectively threaded onto the positive thread segment and the negative thread segment of the other positioning rod (12).

3. The welding fixture for ensuring the relative positions of each mounting point of the belt conveyor idler bracket according to claim 1, characterized in that, A support platform is provided on the upper middle part of the slide beam (1). The upper surface of the support platform is flush with the upper surface of the placement platform (4) of the clamping frame (3). The middle part of the clamping rod (11) is rotatably set on the support platform.

4. The welding fixture for ensuring the relative positions of each mounting point of the belt conveyor idler bracket according to claim 3, characterized in that, The width, depth and length of the placement slot of the placement platform (4) are equal to the width, thickness and length of the bottom mounting plate (1504), respectively.

5. The welding fixture for ensuring the relative positions of each mounting point of the belt conveyor idler bracket according to claim 1, characterized in that, The stop block (5) is a vertically arranged flat plate, and the stop block (5) is correspondingly arranged at the end of the beam frame (1501); When the two clamping assemblies clamp the beam frame (1501), both ends of the beam frame (1501) are respectively attached to the stops (5) of the two clamping assemblies.

6. The welding fixture for ensuring the relative positions of each mounting point of the belt conveyor idler bracket according to claim 1, characterized in that, Limiting strips (13) are provided on both sides of the placement platform (4) of the clamping frame (3). Both limiting strips (13) are arranged along the length direction of the slide beam (1) and are mirror images of each other with the center plane of the slide beam (1) as the center. The distance between the two limiting strips (13) is less than the sum of the width of the lower end of the beam frame (1501) and the width of the lower end of the clamping section (602).

7. The welding fixture for ensuring the relative positions of each mounting point of the belt conveyor idler bracket according to claim 1, characterized in that, The side positioning plate (9) is in the shape of a ], with the lower horizontal section of the side positioning plate (9) attached to the lower side of the side mounting plate (1505) and the upper horizontal section of the side positioning plate (9) attached to the upper side of the top mounting plate (1507). The middle positioning plate (10) is flat and is attached to the lower side of the middle mounting plate (1506).

8. The welding fixture for ensuring the relative positions of each mounting point of the belt conveyor idler bracket according to claim 1, characterized in that, A lifting mechanism is provided between the positioning beam (2) and the sliding beam (1). The lifting mechanism includes a lifting screw (14), which is vertically arranged. The lower end of the lifting screw (14) is rotatably arranged on the sliding beam (1), and the middle part is threaded onto the positioning beam (2).

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