A positioning fixture for vulcanization molding of bridge rubber bearings

Abstract

This utility model relates to the technical field of vulcanization molding positioning devices, and discloses a vulcanization molding positioning fixture for bridge rubber bearings. It includes a vulcanization molding table with a hollow bearing cavity that runs through four sides. A control screw is rotatably connected to the inner top wall of the hollow bearing cavity. This utility model uses a stepper motor to drive the control screw to rotate, which in turn drives four hinged push arms via a lifting ring. This causes four U-shaped driven arms to move closer or further apart, performing a tooling-type extrusion and fixing. The extrusion and fixing action is completed synchronously from all four sides. The top extrusion end can be adjusted for lifting and clamping, making it suitable for fixing bearings of different sizes and specifications. This improves the clamping tightness of the vulcanization process, making the device suitable for the vulcanization molding and fixing of square or round rubber bearings. The vulcanization molding process is less prone to deformation, and the clamping tightness and adaptability are excellent. The fixture has a wide range of versatility and applicability, improving production quality.

Description

Technical Field

[0001] This utility model relates to the technical field of vulcanization molding positioning devices, and in particular to a vulcanization molding positioning tooling for bridge rubber bearings. Background Technology

[0002] Vulcanization of bridge rubber bearings is a crucial process that combines rubber raw materials with components such as metal frames. Through heating and pressurization, the rubber undergoes a vulcanization reaction, forming bridge bearing products with specific strength, elasticity, and stability. The positioning fixture for bridge rubber bearing vulcanization is a specialized piece of equipment used to precisely position and clamp the bearing blank during this process. Its core function is to ensure that the bearing maintains its preset shape and dimensions during vulcanization, preventing displacement and deformation from affecting product quality and providing support for the stable implementation of subsequent vulcanization processes. In existing bridge rubber bearing vulcanization molding positioning fixtures, fixed clamping mechanisms are typically used to perform fixed clamping operations on both sides. However, in actual production and use, since the clamping equipment is usually fixed on both sides, when adapted to circular bearings, the clamping stability is insufficient, and effective wrapping clamping cannot be achieved. Uneven distribution of clamping force leads to deformation of the bearing edges, affecting the vulcanization molding support. Insufficient clamping stability and adaptability make it impossible to uniformly clamp and fix multiple surfaces of the bearing, and it is not well applied to square or cylindrical bridge rubber bearings. The applicability is relatively limited, and the convenience of automated clamping is insufficient, seriously affecting the versatility and applicability of the fixture. Therefore, we propose a bridge rubber bearing vulcanization molding positioning fixture to solve the above problems. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a positioning tool for the vulcanization molding of bridge rubber bearings.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A positioning fixture for vulcanization molding of bridge rubber bearings includes a vulcanization molding table, wherein the vulcanization molding table has a hollow bearing cavity with four through sides. The inner top wall of the hollow bearing cavity is rotatably connected to a control screw, and the inner bottom wall of the hollow bearing cavity is provided with a stepper motor that drives the control screw to rotate. A lifting drive ring is threaded onto the drive control screw. U-shaped driven arms are slidably installed on the front, back, left, and right sides of the vulcanizing molding table. A hinged push arm is hinged between the bottom of the four U-shaped driven arms and the outer ring of the lifting drive ring. Each of the four U-shaped driven arms is provided with a vertical extrusion arm at its top end, and each of the four vertical extrusion arms is provided with a top extrusion end. The top of each vertical extrusion arm is provided with a threaded fixing rod for controlling the lifting and lowering of the top extrusion end.

[0005] Preferably, the top end of the control screw is rotatably connected to the top of the hollow bearing cavity, the stepper motor is fixedly installed at the bottom of the hollow bearing cavity, the hollow bearing cavity is connected to the vulcanizing molding table in all directions, the vulcanizing molding table is provided with a vulcanizing placement plate at the center of the top of the vulcanizing molding table, and the control screw is located directly below the center of the vulcanizing placement plate.

[0006] Preferably, the lifting drive ring is threaded onto the control screw, and the four hinged push arms are hinged in a square array at the outer ring of the lifting drive ring. The U-shaped driven arm slides in a U-shape against the vulcanizing molding table, with the top and bottom of the U-shaped driven arm located at the top of the vulcanizing molding table and inside the hollow bearing cavity, respectively.

[0007] Preferably, multiple positioning and mounting frames are slidably fitted onto both the upper and lower sides of the U-shaped driven arm. The interior of each positioning and mounting frame is rectangular, and the multiple positioning and mounting frames are respectively fixedly installed on the top of the vulcanizing molding table and the top wall of the hollow bearing cavity.

[0008] Preferably, the articulated push arm is installed at an angle between the lifting drive ring and the U-shaped driven arm. Both ends of the articulated push arm are provided with articulated positioning tubes. The adjacent sides of the lifting drive ring and the U-shaped driven arm are provided with articulated mounting seats. The adjacent articulated positioning tubes are hingedly positioned on the articulated mounting seats.

[0009] Preferably, the vertical extrusion arm is provided with a clamping and positioning pad on the side away from the U-shaped driven arm, and the top extrusion end slides and rises and falls on the top of the vertical extrusion arm.

[0010] Preferably, the bottom of the top extrusion end is provided with a top clamping piece, the threaded fixing rod is threadedly installed on the side of the top extrusion end, and the end of the threaded fixing rod is extruded and positioned on the vertical extrusion arm.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This bridge rubber bearing vulcanization molding positioning fixture features a hollow bearing cavity with four through-holes inside the vulcanization molding table. A lifting drive ring is threaded onto the control screw body. Hinged push arms are hinged on all four sides of the outer ring of the lifting drive ring. A stepper motor drives the control screw to rotate, allowing the control screw to be limited by the hinged push arms during rotation. The lifting drive ring can stably move up and down on the control screw, facilitating the synchronous adjustment of the four hinged push arms. This, in turn, synchronously drives the four U-shaped driven arms to move closer or further apart, and simultaneously drives the four vertical extrusion arms for fixture-type extrusion and fixing. This facilitates uniform positioning and extrusion operations, and allows for simultaneous extrusion and fixing on all four sides. The device is suitable for the vulcanization molding and fixing of square or round rubber bearings, and the vulcanization molding process is not prone to deformation.

[0012] 2. This bridge rubber bearing vulcanization molding positioning fixture features a top extrusion end mounted on four vertical extrusion arms for lifting and clamping adjustment. A threaded fixing rod can press and fix the top extrusion end, facilitating lifting and lowering control. It is suitable for top fixing and clamping of rubber bearings of different sizes and specifications, and provides stable clamping on all four sides, improving the clamping tightness of vulcanization. This results in excellent clamping tightness and adaptability of the device, offering wide versatility and applicability, thus improving production quality. Attached Figure Description

[0013] Figure 1 This utility model provides a frontal perspective three-dimensional schematic diagram of a positioning tool for vulcanization molding of bridge rubber bearings. Figure 2 This utility model provides a front view sectional perspective of a positioning tool for vulcanization molding of bridge rubber bearings. Figure 3 This utility model provides a top-view perspective view of a positioning fixture for the vulcanization molding of bridge rubber bearings. Figure 4 This is a three-dimensional schematic diagram of the vulcanization molding table of this utility model, showing the effect of eliminating the backward tilt. Figure 5 For practical purposes Figure 4 Enlarged view of structure A; Figure 6 This is a top-view perspective view of the vulcanization molding platform of this utility model after the removal of the vulcanization molding platform.

[0014] In the diagram: 1. Vulcanization molding table; 101. Vulcanization placement plate; 2. Hollow bearing cavity; 3. Control screw; 4. Stepper motor; 5. Lifting drive ring; 6. U-shaped driven arm; 601. Positioning mounting frame; 7. Hinge push arm; 701. Hinge positioning tube; 702. Hinge mounting seat; 8. Vertical extrusion arm; 801. Clamping positioning pad; 9. Top extrusion end; 901. Top clamping piece; 10. Threaded fixing rod. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Please see Figures 1-6A positioning fixture for vulcanization molding of bridge rubber bearings includes a vulcanization molding table 1, and the vulcanization molding table 1 has a hollow bearing cavity 2 with four through sides. The inner top wall of the hollow bearing cavity 2 is rotatably connected to a control screw 3, and the inner bottom wall of the hollow bearing cavity 2 is provided with a stepper motor 4 that drives the control screw 3 to rotate. A lifting drive ring 5 is threadedly connected to the drive control screw 3. U-shaped driven arms 6 are slidably installed on the front, back, left and right sides of the vulcanizing molding table 1. A hinged push arm 7 is hinged between the bottom of the four U-shaped driven arms 6 and the outer ring of the lifting drive ring 5. Each of the four U-shaped driven booms 6 has a vertical extrusion arm 8 at its top end, and each of the four vertical extrusion arms 8 has a top extrusion end 9 at its top end. The top of the vertical extrusion arm 8 has a threaded fixing rod 10 for controlling the lifting and lowering of the top extrusion end 9. The beneficial effects that this plan aims to achieve are: A hollow bearing cavity 2 with four through sides is provided inside the vulcanizing molding table 1. A lifting drive ring 5 is threadedly connected to the control screw 3. The four sides of the outer ring of the lifting drive ring 5 are hinged and installed with hinged push arms 7. The stepper motor 4 drives the control screw 3 to rotate, so that the control screw 3 can be limited by the hinged push arms 7 when rotating. The lifting drive ring 5 can be stably lifted and displaced on the control screw 3, which is convenient to synchronously push the four hinged push arms 7 to tilt and adjust, and then synchronously drive the four U-shaped driven arms 6 to move closer or further away from each other. It can also synchronously drive the four vertical extrusion arms 8 to perform tooling-type extrusion and fixation, which is convenient to complete the uniform positioning extrusion operation. The extrusion and fixation function can be completed synchronously on all four sides. The four vertical extrusion arms 8 are equipped with top extrusion ends 9, which can be adjusted for lifting and clamping. The threaded fixing rods 10 can press and fix the top extrusion ends 9, which facilitates the lifting and lowering control of the top extrusion ends 9. It is suitable for the top fixing and clamping of rubber supports of different sizes and specifications, and the top is stably clamped on all four sides, which improves the clamping tightness of vulcanization. This makes the device suitable for the vulcanization molding and fixing of square or round rubber supports. The vulcanization molding is not easily deformed, and the clamping tightness and adaptability are excellent. The tooling has a wide range of versatility and applicability, which improves the production quality.

[0018] Furthermore, the top of the control screw 3 is rotatably connected to the top of the hollow bearing cavity 2, and the stepper motor 4 is fixedly installed at the bottom of the hollow bearing cavity 2. The vulcanizing molding table 1 is connected to the front, back, left and right sides of the hollow bearing cavity 2. A vulcanizing placement plate 101 is provided at the center of the top of the vulcanizing molding table 1, and the control screw 3 is located directly below the center of the vulcanizing placement plate 101. Specifically, the top of the control screw 3 is rotatably connected to the top of the hollow bearing cavity 2, ensuring stable operation of the screw when driven by the stepper motor 4 and preventing it from deviating. The hollow bearing cavity 2 is connected to the vulcanizing molding table 1 in all directions, facilitating the movement control of the hinged push arm 7 and the U-shaped driven arm 6, and also making maintenance convenient. A vulcanizing placement plate 101 is provided at the center of the top of the vulcanizing molding table 1, which facilitates the stable placement of the bridge rubber bearing on the top of the vulcanizing placement plate 101, making it easy to carry out stable vulcanizing molding operations and convenient to use and operate.

[0019] Furthermore, the lifting drive ring 5 is threaded onto the control screw 3, and four hinged push arms 7 are hinged in a square array at the outer ring of the lifting drive ring 5. The U-shaped driven arm 6 slides in a U-shape on the vulcanizing molding table 1. The top and bottom of the U-shaped driven arm 6 are located at the top of the vulcanizing molding table 1 and inside the hollow bearing cavity 2, respectively. Specifically, the lifting drive ring 5 is threaded onto the control screw 3, ensuring stable installation and good adaptability. The four hinged push arms 7 are mounted in a square array on the outer ring of the lifting drive ring 5, which can stably and evenly position the lifting drive ring 5. They can also synchronously drive the adjacent U-shaped driven arms 6 to move closer or further away. The U-shaped driven arms 6 slide in a U-shape against the vulcanizing molding table 1. The top and bottom of the U-shaped driven arms 6 are located at the top of the vulcanizing molding table 1 and inside the hollow bearing cavity 2, respectively. The U-shaped driven arms 6 can stably drive the vertical extrusion arm 8 for clamping and adaptation, ensuring stable and even force clamping on the four sides of the rubber support, with good clamping adaptability.

[0020] Furthermore, multiple positioning and mounting frames 601 are slidably fitted onto the upper and lower sides of the U-shaped driven boom 6. The interior of the positioning and mounting frame 601 is rectangular. The multiple positioning and mounting frames 601 are respectively fixedly installed on the top of the vulcanizing molding table 1 and the top wall of the hollow bearing cavity 2. Specifically, multiple positioning and mounting frames 601 are slidably fitted onto both the upper and lower sides of the U-shaped driven arm 6. The positioning and mounting frames 601 can stably clamp and fix the upper and lower sides of the U-shaped driven arm 6, resulting in good displacement positioning and sliding effect of the U-shaped driven arm 6, which facilitates stable sliding positioning displacement.

[0021] Furthermore, the articulated push arm 7 is installed at an angle between the lifting drive ring 5 and the U-shaped driven arm 6. Both ends of the articulated push arm 7 are provided with articulated positioning tubes 701. The adjacent sides of the lifting drive ring 5 and the U-shaped driven arm 6 are provided with articulated mounting seats 702. The adjacent articulated positioning tubes 701 are hingedly positioned on the articulated mounting seats 702. Specifically, the articulated push arm 7 is installed at an angle between the lifting drive ring 5 and the U-shaped driven arm 6. When the lifting drive ring 5 is raised or lowered, it can stably drive the articulated push arm 7. The articulated push arm 7 is articulated and driven to pull the U-shaped driven arm 6 to move. Both ends of the articulated push arm 7 are provided with articulated positioning tubes 701, and the articulated mounting base 702 is installed on the side adjacent to the lifting drive ring 5 and the U-shaped driven arm 6. When the adjacent articulated positioning tubes 701 are sleeved and installed on the articulated mounting base 702, the lifting drive ring 5 can drive multiple articulated push arms 7 simultaneously when it is raised or lowered. Multiple articulated push arms 7 can be driven to tilt simultaneously, which facilitates tilting and driving the U-shaped driven arm 6 to move. The displacement adjustment and control effect is good.

[0022] Furthermore, a clamping and positioning pad 801 is provided on the side of the vertical extrusion arm 8 away from the U-shaped driven arm 6, and the top extrusion end 9 slides and rises and falls on the top of the vertical extrusion arm 8. Specifically, a clamping positioning pad 801 is provided on the side of the vertical extrusion arm 8 away from the U-shaped driven arm 6, which facilitates the extrusion and fixing of the vertical extrusion arm 8 with the assistance of the clamping positioning pad 801. The clamping and fixing effect is good and the fit is excellent.

[0023] Furthermore, a top clamping piece 901 is provided at the bottom of the top extrusion end 9, and a threaded fixing rod 10 is threadedly installed on the side of the top extrusion end 9. The end of the threaded fixing rod 10 is extruded and positioned on the vertical extrusion arm 8. Specifically, the bottom of the top extrusion end 9 is provided with a top clamping piece 901. When the top extrusion end 9 is raised or lowered, it is clamped to the top of the material by the top clamping piece 901. It has good anti-slip clamping and fixing adaptability, good installation tightness, and stable clamping and fixing.

[0024] How to use and how to work this device: A hollow bearing cavity 2, open on all four sides, is provided inside the vulcanizing molding table 1. A stepper motor 4, which drives the control screw 3 to rotate, can be installed in the hollow bearing cavity 2. Running the stepper motor 4 drives the control screw 3 to rotate. A lifting drive ring 5 is threadedly connected to the body of the control screw 3. Hinged push arms 7 are hinged to all four sides of the outer ring of the lifting drive ring 5. The hinged push arms 7 are limited by the U-shaped driven arm 6, so that the control screw 3 can be limited by the hinged push arms 7 when rotating. The lifting drive ring 5 can be stably positioned on the control screw 3. The upward and downward displacement facilitates the synchronous pushing of the four hinged push arms 7 for tilt adjustment, thereby synchronously driving the four U-shaped driven arms 6 to move closer or further away from each other. Each of the four U-shaped driven arms 6 has a vertical extrusion arm 8 at its top end. When the four U-shaped driven arms 6 move closer to each other, they can synchronously drive the four vertical extrusion arms 8 to perform tooling-type extrusion and fixation, which facilitates uniform positioning and extrusion operations. The extrusion and fixation can be completed simultaneously on all four sides. It is suitable for the vulcanization and fixing of square or round rubber supports, and the clamping and fixing are stable, and the vulcanization and molding are not easily deformed. The four vertical extrusion arms 8 are equipped with top extrusion ends 9, which can be adjusted for lifting and clamping. The top extrusion ends 9 are threadedly installed on the side by threaded fixing rods 10. The ends of the threaded fixing rods 10 can be pressed and fixed on the vertical extrusion arms 8 to complete the fixation of the top extrusion ends 9. It is suitable for the top fixing and clamping of rubber supports of different sizes and specifications. It can stably clamp on all four sides of the top, with excellent clamping tightness and adaptability, which improves the clamping tightness of vulcanization. It is convenient to use and operate, produces high quality, and has a wide range of tooling versatility and applicability. The top of the control screw 3 is rotatably connected to the top of the hollow bearing cavity 2, ensuring that the screw runs stably and is not easily deviated when driven by the stepper motor 4. The hollow bearing cavity 2 is connected to the vulcanizing molding table 1 in all directions, which facilitates the movement control of the hinged push arm 7 and the U-shaped driven arm 6, and also makes maintenance convenient. A vulcanizing placement plate 101 is provided at the center of the top of the vulcanizing molding table 1, which makes it easy for the bridge rubber bearing to be stably placed on the top of the vulcanizing placement plate 101, which facilitates stable vulcanizing molding operations and is convenient to use and operate. The lifting drive ring 5 is threaded onto the control screw 3, ensuring stable installation and good adaptability. Four hinged push arms 7 are mounted in a square array on the outer ring of the lifting drive ring 5, which can stably and evenly position the lifting drive ring 5. They can also synchronously drive the adjacent U-shaped driven arms 6 to move closer or further away. The U-shaped driven arms 6 slide in a U-shape against the vulcanizing molding table 1. The top and bottom of the U-shaped driven arms 6 are located at the top of the vulcanizing molding table 1 and inside the hollow bearing cavity 2, respectively. The U-shaped driven arms 6 can stably drive the vertical extrusion arm 8 for clamping and adaptation, and can stably and evenly clamp the rubber support on all four sides, with good clamping adaptability. Multiple positioning and mounting frames 601 are fitted and slidably on both the upper and lower sides of the U-shaped driven arm 6. The positioning and mounting frames 601 can stably clamp and fix the upper and lower sides of the U-shaped driven arm 6, resulting in good displacement positioning and sliding effect of the U-shaped driven arm 6, which facilitates stable sliding positioning displacement. The articulated push arm 7 is installed at an angle between the lifting drive ring 5 and the U-shaped driven arm 6. The lifting drive ring 5 can stably drive the articulated push arm 7 when lifting and lowering. The articulated push arm 7 articulately pulls the U-shaped driven arm 6 to move. Both ends of the articulated push arm 7 are provided with articulated positioning tubes 701, and the articulated mounting base 702 is installed on the side adjacent to the lifting drive ring 5 and the U-shaped driven arm 6. When the adjacent articulated positioning tubes 701 are sleeved and installed on the articulated mounting base 702, the lifting drive ring 5 can simultaneously drive multiple articulated push arms 7 when lifting and lowering. Multiple articulated push arms 7 can be simultaneously driven to tilt, which facilitates tilting to drive the U-shaped driven arm 6 to move, and the displacement adjustment and control effect is good. A clamping and positioning pad 801 is provided on the side of the vertical extrusion arm 8 away from the U-shaped driven arm 6. When the vertical extrusion arm 8 is clamped and fixed, the clamping and positioning pad 801 assists in the extrusion and fixing, which has a good anti-slip clamping and fixing effect and excellent fit. The bottom of the top extrusion end 9 is provided with a top clamping piece 901. When the top extrusion end 9 is raised or lowered, it is clamped to the top of the material by the top clamping piece 901. It has good anti-slip clamping and fixing adaptability, installation tightness, and clamping and fixing stability. The device is suitable for the vulcanization and fixing of square or round rubber supports. The vulcanization process is not easily deformed, and the clamping and fastening properties are excellent. The tooling has a wide range of versatility and applicability, thus improving production quality.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A vulcanization forming positioning tool for bridge rubber bearing, comprising a vulcanization forming table (1), characterized in that: The vulcanizing molding table (1) has a hollow bearing cavity (2) that is open on all four sides. The inner top wall of the hollow bearing cavity (2) is rotatably connected to a control screw (3), and the inner bottom wall of the hollow bearing cavity (2) is provided with a stepper motor (4) for driving the control screw (3) to rotate. A lifting drive ring (5) is threaded onto the drive control screw (3). U-shaped driven arms (6) are slidably installed on the front, back, left and right sides of the vulcanizing molding table (1). A hinged push arm (7) is hinged between the bottom of the four U-shaped driven arms (6) and the outer ring of the lifting drive ring (5). Each of the four U-shaped driven arms (6) is provided with a vertical extrusion arm (8) at the top end, and each of the four vertical extrusion arms (8) is provided with a top extrusion end (9). The top of the vertical extrusion arm (8) is provided with a threaded fixing rod (10) for controlling the lifting and lowering of the top extrusion end (9).

2. The vulcanization forming positioning tool for bridge rubber bearing according to claim 1, characterized in that: The top of the control screw (3) is rotatably connected to the top of the hollow bearing cavity (2), and the stepper motor (4) is fixedly installed at the bottom of the hollow bearing cavity (2). The hollow bearing cavity (2) is connected to the vulcanizing molding table (1) in all directions. A vulcanizing placement plate (101) is provided at the center of the top of the vulcanizing molding table (1), and the control screw (3) is located directly below the center of the vulcanizing placement plate (101).

3. The vulcanization forming positioning tool for bridge rubber bearing according to claim 1, characterized in that: The lifting drive ring (5) is threaded onto the control screw (3), and the four hinged push arms (7) are hinged in a square array at the outer ring of the lifting drive ring (5). The U-shaped driven arm (6) slides in a U-shape on the vulcanizing molding table (1). The top and bottom of the U-shaped driven arm (6) are located at the top of the vulcanizing molding table (1) and inside the hollow bearing cavity (2), respectively.

4. The vulcanization forming positioning tool for bridge rubber bearing according to claim 1, characterized in that: Multiple positioning and mounting frames (601) are slidably fitted on both the upper and lower sides of the U-shaped driven arm (6). The interior of the positioning and mounting frame (601) is rectangular. The multiple positioning and mounting frames (601) are respectively fixedly installed on the top of the vulcanizing molding table (1) and the top wall of the hollow bearing cavity (2).

5. The vulcanization forming positioning tool for bridge rubber bearing according to claim 1, characterized in that: The hinged push arm (7) is installed at an angle between the lifting drive ring (5) and the U-shaped driven arm (6). Both ends of the hinged push arm (7) are provided with hinged positioning tubes (701). The lifting drive ring (5) and the U-shaped driven arm (6) are each provided with a hinged mounting seat (702) on their adjacent sides. The adjacent hinged positioning tubes (701) are hingedly positioned on the hinged mounting seat (702).

6. The vulcanization forming positioning tool for bridge rubber support according to claim 1, characterized in that: The vertical extrusion arm (8) is provided with a clamping positioning pad (801) on the side away from the U-shaped driven arm (6), and the top extrusion end (9) slides and rises and falls on the top of the vertical extrusion arm (8).

7. The vulcanization forming positioning tool for bridge rubber support according to claim 1, characterized in that: The bottom of the top extrusion end (9) is provided with a top clamping piece (901), and the threaded fixing rod (10) is threadedly installed on the side of the top extrusion end (9). The end of the threaded fixing rod (10) is extruded and positioned on the vertical extrusion arm (8).

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