Manual switching mechanism for supporting different plate thicknesses

Abstract

The utility model belongs to the technical field of automobile manufacturing, concretely relates to a manual switching mechanism for supporting different plate material thicknesses, which comprises a support seat, a cylinder fixed to the side of the support seat, a pressing arm installed on the piston rod of the cylinder, a pressing block fixed to the lower part of the pressing arm, a replaceable support mechanism installed on the support seat, and a base with a switching piece installation groove horizontally arranged and a through hole vertically arranged, a switching piece with a protrusion arranged on the upper part and a sliding groove arranged on the middle part, a spring bolt penetrating through the through hole of the base and the sliding groove of the switching piece, a spring sleeved on the spring bolt, a pressing column slidingly arranged in the through hole of the base and connected with the spring bolt through a connecting column at the lower part, and a movable bolt fixedly connected with the switching piece at one end. The manual switching mechanism effectively solves the problem of needing to equip a complex switching mechanism due to supporting different plate material thicknesses at the same position through a clever mechanical structure design.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, specifically relating to a manual switching mechanism for supporting different sheet metal thicknesses. Background Technology

[0002] In automotive body-in-white welding production lines, when supporting sheet metal of varying thicknesses, specific switching methods are required to adapt to these differences. Currently, there are two main switching methods in the industry: One method involves using a complex switching mechanism to achieve material thickness switching. Such mechanisms typically include multiple power components, sensors, and linkage structures. While they can achieve automatic or semi-automatic switching, their overall structure is complex, resulting in higher design and manufacturing costs. Furthermore, they require more manpower and resources for maintenance, increasing the overall cost of the production line.

[0003] Another method is to adapt to different material thicknesses by replacing support blocks of different specifications. When the production line needs to switch supports for plates in multiple locations, operators must disassemble the old support blocks and install the new ones one by one. The operation process is cumbersome and greatly increases the intensity of manual labor. At the same time, during the frequent disassembly and replacement, small support blocks are prone to being lost, which not only affects the production progress, but may also cause the plates to be unstable due to missing support blocks, thereby affecting the welding quality.

[0004] In summary, existing technologies for adapting to different sheet metal thicknesses in support switching suffer from problems such as complex structure, high cost, cumbersome operation, high labor intensity, and easy loss of parts, and a more optimized solution is urgently needed. Utility Model Content

[0005] The purpose of this invention is to provide a manual switching mechanism for supporting different sheet thicknesses, so as to solve the problems existing in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a manual switching mechanism for supporting different sheet metal thicknesses, comprising: Support base; The cylinder is fixed to the side of the support base; The pressure arm is mounted on the piston rod of the cylinder; The pressure block is fixed to the lower part of the pressure arm; Replaceable support mechanism, mounted on support base, includes: The base has a horizontal slot for mounting the switching plate and a vertical through hole. The switching plate is slidably disposed in the switching plate mounting slot, with a protrusion on the upper part and a sliding groove in the middle; Spring bolts, through holes in the base, and sliding grooves in the switching plate; A spring is fitted onto a spring bolt; The clamping column is slidably installed in the through hole of the base, and its lower part is connected to the spring bolt through the connecting column; The movable bolt is fixedly connected at one end to the switching plate. When the movable bolt is manually pulled to drive the switching plate to slide, the protrusion pushes the clamping column to move down and compress the spring. After the switching plate slides to the target position, the spring rebounds and locks the height of the clamping column.

[0007] Preferably, the protrusion of the switching plate has a stepped structure, with different step heights corresponding to support positions for different plate thicknesses.

[0008] Preferably, the groove is an elongated hole, the length of which is parallel to the sliding direction of the switching plate.

[0009] Preferably, the connecting column and the spring bolt are connected by threads, and the clamping column is fixedly connected to the connecting column.

[0010] Preferably, the diameter of the clamping column is larger than the diameter of the through hole in the base, forming a limiting structure.

[0011] The beneficial effects of this utility model are as follows: This manual switching mechanism, through its ingenious mechanical structure design, effectively solves the problem of needing a complex switching mechanism to support plates of different thicknesses at the same location. The synergistic action of components such as the switching plate, spring, and spring bolts in its replaceable support mechanism eliminates the need for multiple sets of support blocks or complex automatic switching devices in traditional methods, significantly reducing the number of parts and manufacturing costs, while also simplifying the overall structure and reducing the difficulty of later maintenance.

[0012] Furthermore, this mechanism employs a manual pulling and spring compression method for switching, significantly optimizing the operation process. Operators no longer need to frequently replace support blocks; they can switch supports for plates of different thicknesses simply through manual operation. This not only reduces the intensity of manual operations but also minimizes the risk of loss due to frequent part replacements, thereby improving the efficiency and stability of plate support switching in automotive body-in-white welding production lines. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a perspective view of the replaceable support mechanism in this utility model; Figure 3 This is a cross-sectional view of the replaceable support mechanism in this utility model. Detailed Implementation

[0014] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0015] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0018] like Figures 1-3 As shown, this utility model discloses a manual switching mechanism for supporting plates of different thicknesses. The manual switching mechanism includes a cylinder 1, a support base 2, a replaceable support mechanism 3, a pressure block 4, and a pressure arm 5. The cylinder 1 is bolted to the side of the support base 2, providing clamping power to the mechanism. The replaceable support mechanism 3 is installed on the top of the support base 2 to accommodate plates of different thicknesses. The pressure block 4 is welded to the lower part of the pressure arm 5 for directly clamping the plates. One end of the pressure arm 5 is mounted on the piston rod of the cylinder 1 via a pin, allowing it to rotate around the connection point as the piston rod extends and retracts.

[0019] The replaceable support mechanism 3 is the core switching component, and its specific structure is as follows: The base 32 is fixed to the support base 2 by bolts. The base 32 has a switching plate mounting groove 37 in the lateral direction to accommodate the switching plate 31 and limit its lateral movement trajectory. The base 32 has a through hole in the longitudinal direction. A spring bolt 34 and a clamping column 36 are installed in the through hole in sequence. The lower part of the clamping column 36 is welded to the top of the spring bolt 34 through a cylindrical connecting column 38. The spring 33 is sleeved in the middle of the spring bolt 34, and the top of the spring 33 abuts against the connecting column 38 and the bottom end abuts against the inner wall of the through hole of the base 32. The switching plate 31 is installed in the switching plate mounting groove 37. The upper part is integrally formed with a protrusion 39 for supporting the plate (the height of the protrusion 39 can be designed according to the thickness of the plate). A long strip-shaped sliding groove 30 is opened in the middle. The spring bolt 34 passes through the sliding groove 30 and can slide along the sliding groove 30. One end of the movable bolt 35 is connected to the side of the switching plate 31 by thread, and the other end extends out of the base 32, which makes it easy for the operator to pull the switching plate 31.

[0020] When the mechanism is in operation, it first switches to a support state adapted to the current sheet metal thickness via the replaceable support mechanism 3: the operator pulls the movable bolt 35, causing the switching plate 31 to move laterally along the switching plate mounting groove 37. At this time, the spring bolt 34 slides along the sliding groove 30 of the switching plate 31, and the spring 33 is compressed due to the downward pressure of the connecting column 38 (stores potential energy through the elastic deformation of the spring). When the switching plate 31 moves to the target position, the height of the protrusion 39 matches the current sheet metal thickness. After the movable bolt 35 is released, the spring 33 returns to its original position and pushes the connecting column 38 upward, causing the spring bolt 34 to press against the inner wall of the sliding groove 30, thereby fixing the switching plate 31 in the current position and completing the switching of the support height.

[0021] Subsequently, the piston rod of cylinder 1 extends, driving the pressure arm 5 to rotate downwards. The pressure block 4 moves down with the pressure arm 5 and contacts the plate on the replaceable support mechanism 3. Finally, the plate is pressed under the driving force of cylinder 1. When it is necessary to replace the plate with a different thickness, repeat the above operation of manually pulling the switching plate 31 to quickly switch the support height of the protrusion 39 to adapt to the new plate thickness.

[0022] 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 scope of protection of this utility model.

Claims

1. A manual switching mechanism for supporting sheet metal of different thicknesses, characterized in that, include: Support base (2); Cylinder (1) is fixed to the side of support base (2); The pressure arm (5) is mounted on the piston rod of the cylinder (1); The pressure block (4) is fixed to the lower part of the pressure arm (5); Replaceable support mechanism (3), installed on support base (2), includes: The base (32) has a horizontally provided switching plate mounting groove (37) and a vertically provided through hole; The switching plate (31) is slidably disposed in the switching plate mounting groove (37), with a protrusion (39) on its upper part and a sliding groove (30) in its middle part. Spring bolt (34), through hole through base (32) and groove (30) of switching plate (31); Spring (33) is fitted onto spring bolt (34); The clamping column (36) is slidably disposed in the through hole of the base (32), and its lower part is connected to the spring bolt (34) through the connecting column (38); One end of the movable bolt (35) is fixedly connected to the switching plate (31); When the movable bolt (35) is manually pulled to drive the switching plate (31) to slide, the protrusion (39) pushes the clamping column (36) to move down to compress the spring (33). After the switching plate (31) slides to the target position, the spring (33) rebounds to lock the height of the clamping column (36).

2. The manual switching mechanism according to claim 1, characterized in that: The protrusion (39) of the switching plate (31) is a stepped structure, and different step heights correspond to the support positions of different plate thicknesses.

3. The manual switching mechanism according to claim 1, characterized in that: The groove (30) is an elongated hole, the length of which is parallel to the sliding direction of the switching plate (31).

4. The manual switching mechanism according to claim 1, characterized in that: The connecting column (38) and the spring bolt (34) are connected by threads, and the clamping column (36) is fixedly connected to the connecting column (38).

5. The manual switching mechanism according to claim 1, characterized in that: The diameter of the clamping column (36) is larger than the diameter of the through hole of the base (32), forming a limiting structure.

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