Positioning and pressing jig for processing fireproof door

Abstract

The utility model provides a positioning and pressing jig for processing a fireproof door, which belongs to the field of fireproof door processing equipment and comprises a base, a base plate is connected above the base, an object placing plate is rotatably arranged on the base plate, a clamping cavity is arranged on the object placing plate, and a clamping component is arranged in the clamping cavity. The fireproof door machining device is suitable for machining a fireproof door when the fireproof door is machined, the fireproof door is placed in the clamping cavity of the storage plate, the supporting plate provides bottom supporting, and the air cylinder drives the L-shaped clamping plate to conduct clamping. The height of the device is adjusted through a hydraulic turning plate structure, and the angle is adjusted by rotating the storage plate through cooperation of the annular sliding groove and the connecting rod, so that the requirements of different specifications and procedures are met, and multidirectional stable clamping and convenient operation are achieved.

Description

Technical Field

[0001] This utility model relates to the field of fire door processing equipment, specifically to a positioning and clamping fixture for fire door processing. Background Technology

[0002] In the manufacturing process of fire doors, positioning and clamping fixtures are key equipment to ensure the processing accuracy and stability of the door leaf. Existing positioning and clamping fixtures are mainly used to fix fire door blanks for subsequent processing operations such as cutting, drilling, and grinding. Their core function is to prevent dimensional deviations or surface damage caused by workpiece displacement during processing through reliable positioning and clamping, thereby ensuring product quality and improving processing efficiency.

[0003] However, existing fixtures have significant shortcomings in practical applications. First, traditional fixtures typically employ fixed angles and positions in their positioning structure, making it difficult to adapt to the diverse requirements of different specifications and processing steps for the placement angle and height of fire doors. For example, when processing the edges or corners of a fire door, a fixed fixture may prevent the processing equipment from reaching the target position or require frequent adjustments to the workpiece position, increasing operational complexity and potentially leading to error accumulation due to repeated positioning, thus affecting processing accuracy. Second, existing fixtures mostly use manual adjustment or unidirectional clamping, which makes it difficult to achieve uniform and stable clamping for irregular or large fire doors, easily resulting in localized loosening or over-clamping that causes workpiece deformation. Furthermore, traditional fixtures lack a flexible linkage adjustment mechanism between the base and support structure. When adjusting the fixture's tilt angle is required, additional auxiliary tools are often needed, which is time-consuming and labor-intensive, failing to meet the demands of efficient production. These problems not only reduce processing efficiency but may also lead to increased scrap rates and production costs. Therefore, there is an urgent need for a positioning and clamping fixture that can flexibly adjust the angle and position, has multi-directional clamping function, and is easy to operate, in order to solve the defects of poor adaptability, low positioning accuracy and cumbersome operation in the existing technology. Utility Model Content

[0004] In view of this, the present invention provides a positioning and clamping fixture for fire door processing. The fire door is placed in the clamping cavity of the storage plate, with a support plate providing bottom support, and an L-shaped clamping plate driven by a cylinder for clamping. The height is adjusted via a hydraulic flip-plate structure, and the angle is adjusted by rotating the storage plate using an annular groove and connecting rod, thereby adapting to different specifications and process requirements, achieving multi-directional stable clamping and convenient operation.

[0005] To solve the above-mentioned technical problems, this utility model provides a positioning and clamping fixture for fire door processing, including a base for stable support of the entire device. A chassis is connected above the base, and one end of the chassis is hinged to the base, which gives the chassis a certain degree of rotational flexibility. The other end of the chassis is connected to the base through a hydraulic flip-plate structure, which can adjust the height of the chassis according to actual needs, thereby changing the working height of the entire device.

[0006] A shelf is rotatably mounted on the chassis for placing items to be processed. The shelf has clamping cavities to position and secure the items, preventing displacement during device operation. Support plates are located at opposite corners within the clamping cavities, providing bottom support and enhancing stability. Clamping assemblies, including L-shaped clamping plates, are located at the other two opposite corners. The L-shape allows for clamping from two directions, improving reliability. The clamping plates, located within the clamping cavities, are connected at one end to a cylinder. The cylinder acts as a power source, its extension and retraction movement driving the clamping plates to clamp and release the items.

[0007] The shelf is equipped with an annular groove, and a corresponding annular connecting rod is mounted on the chassis, sliding within the groove. This structural design not only ensures the shelf can rotate smoothly relative to the chassis but also limits its rotation, ensuring it can only rotate along the path of the annular groove, thus guaranteeing the stability and accuracy of the device's operation. Through the close cooperation between the components, the device can efficiently and stably complete a series of operations such as placing, fixing, and rotating items.

[0008] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0009] 1. Flexible adjustment of height and angle: One end of the chassis is hinged to the base, and the other end is connected through a hydraulic flip-plate structure, which can adjust the height of the chassis according to actual needs and change the working height of the device; the placement plate can rotate relative to the chassis, and the annular connecting rod cooperates with the annular sliding groove to ensure smooth rotation and also play a limiting role, which can flexibly adjust the placement angle of the fire door to adapt to the diverse needs of different specifications and different processing procedures for the placement angle and height of the fire door, avoid the processing equipment being unable to reach the target position due to angle and height issues, reduce frequent adjustments to the workpiece position, reduce error accumulation, and improve processing accuracy.

[0010] 2. Stable and reliable clamping: The support plates at the two opposite corners of the clamping cavity support the fire door from the bottom, enhancing the stability of placement; in addition, the L-shaped clamping plates at the two opposite corners are driven by cylinders and can clamp the fire door from two directions, improving the reliability of clamping and effectively avoiding the problem of local loosening or over-clamping that could cause workpiece deformation when dealing with irregular or large fire doors.

[0011] 3. Convenient and efficient operation: All components work closely together and are easy to operate. No additional auxiliary tools are needed to perform a series of operations such as placing, fixing, adjusting the height and angle of fire doors, which improves processing efficiency, meets the needs of high-efficiency production, and helps to reduce scrap rate and production costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of a positioning and clamping fixture for fire door processing according to the present invention;

[0013] Figure 2 This is a cross-sectional structural diagram of the base of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Base; 2. Chassis; 3. Shelf; 4. Clamping cavity; 5. Annular groove; 6. Annular connecting rod; 7. Support plate; 8. Clamping plate; 9. Cylinder; 10. Hydraulic flip-plate structure. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0016] like Figure 1 , 2 As shown:

[0017] This embodiment provides a positioning and clamping fixture for fire door processing, including a base 1, with a chassis 2 connected above the base 1. One end of the chassis 2 is hinged to the base 1. This hinged connection is achieved through a specific hinge structure, with one end of the hinge fixed to the base 1 and the other end connected to the chassis 2, giving the chassis 2 a certain degree of rotational flexibility around the hinge axis. The other end of the chassis 2 is connected to the base 1 through a hydraulic flip-plate structure 10, which is generally composed of a hydraulic rod or a screw and nut mechanism. Taking a hydraulic rod as an example, one end of the hydraulic rod is hinged to the base 1, and the other end of the hydraulic cylinder is hinged to the chassis 2. When the hydraulic rod is driven, the output end of the hydraulic rod moves back and forth, thereby driving the chassis 2 to rise or fall. The height of the chassis 2 can be precisely adjusted according to actual needs, ultimately achieving the purpose of changing the working height of the entire device.

[0018] like Figure 1 , 2 As shown:

[0019] A shelf 3 is rotatably mounted on the chassis 2. The main function of the shelf 3 is to hold the items to be processed. The shelf 3 has a clamping cavity 4, which plays a crucial role in positioning and securing the items, effectively preventing displacement during operation. Support plates 7 are located at opposite corners within the clamping cavity 4. When materials are placed in the clamping cavity 4, the support plates 7 provide stable support from the bottom. The support plates 7 are typically fixed to the clamping cavity 4 by welding or bolting to ensure stability and further enhance the stability of the placed items. Clamping assemblies are located at the other two opposite corners of the clamping cavity 4. These clamping assemblies mainly consist of L-shaped clamping plates 8. The unique L-shaped design allows the clamping plates 8 to clamp items from two directions, greatly improving clamping reliability. The clamping plates 8 are located within the clamping cavity 4, with one end connected to a cylinder 9. The cylinder 9 serves as the power source for the entire clamping action, driving the clamping plates 8 through its extension and retraction. The piston rod of cylinder 9 is tightly connected to clamping plate 8 by means of pin or thread. When the piston rod of cylinder 9 extends, it pushes clamping plate 8 closer to the object to achieve clamping operation; when the piston rod of cylinder 9 retracts, clamping plate 8 moves away from the object to complete the release action.

[0020] like Figure 1 , 2 As shown:

[0021] The shelf 3 is also equipped with an annular groove 5, and correspondingly, the chassis 2 is equipped with an annular connecting rod 6. The design of the annular connecting rod 6 and the annular groove 5 is ingenious, allowing the annular connecting rod 6 to slide smoothly within the annular groove 5. The annular connecting rod 6 is generally fixed to the chassis 2 by welding or riveting, while the annular groove 5 is integrally formed during the manufacturing process of the shelf 3 or installed through subsequent processing. This structural design not only ensures that the shelf 3 can rotate smoothly relative to the chassis 2, but also limits the rotation of the shelf 3. Due to the trajectory limitation of the annular groove 5, the shelf 3 can only rotate along the trajectory of the annular groove 5, avoiding deviation or wobbling during rotation, and ensuring the stability and accuracy of the device operation.

[0022] Working principle: First, the fire door is placed in the clamping cavity 4 of the storage plate 3. The support plates 7 at opposite corners of the clamping cavity 4 provide support for the fire door from the bottom. Next, the cylinder 9 is activated, and the piston rod of the cylinder 9 extends to push the L-shaped clamping plate 8 towards the fire door, clamping the fire door from two directions to fix it. If the working height of the device needs to be adjusted, the hydraulic flip-plate structure 10 can be operated. Taking the hydraulic flip-plate structure 10 with a screw and nut mechanism as an example, the drive motor drives the screw to rotate, and the nut moves up and down along the screw, causing one end of the chassis 2 to rise and fall. Since one end of the chassis 2 is hinged to the base 1, the chassis 2 rotates around the hinge point, thereby adjusting the height of the entire device. During the processing of the fire door, if the angle of the fire door needs to be adjusted, the storage plate 3 can rotate relative to the chassis 2. The annular connecting rod 6 on the chassis 2 slides within the annular groove 5 of the shelf 3, ensuring the shelf 3 rotates smoothly while restricting it to rotate only along the trajectory of the annular groove 5, thereby adjusting the angle of the fire door to meet the needs of different processing procedures.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0024] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A positioning and clamping fixture for processing fire doors, characterized in that: Includes a base (1), a chassis (2) connected above the base (1), a shelf (3) rotatably mounted on the chassis (2), a clamping cavity (4) on the shelf (3), and a clamping component inside the clamping cavity (4).

2. The positioning and clamping fixture for fire door processing as described in claim 1, characterized in that: One end of the chassis (2) is hinged to the base (1), and the other end of the chassis (2) is connected to the base (1) through a hydraulic flip-plate structure (10).

3. A positioning and clamping fixture for fire door processing as described in claim 2, characterized in that: The shelf (3) has an annular groove (5), and the chassis (2) has an annular connecting rod (6), which slides in the groove.

4. A positioning and clamping fixture for fire door processing as described in claim 3, characterized in that: The clamping cavity (4) has support plates (7) at two opposite corners.

5. A positioning and clamping fixture for fire door processing as described in claim 4, characterized in that: The clamping assembly is located at the other two opposite corners. The clamping assembly includes a clamping plate (8), which is L-shaped and located inside the clamping cavity (4).

6. A positioning and clamping fixture for fire door processing as described in claim 5, characterized in that: One end of the clamping plate (8) is connected to a cylinder (9).

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