Beam clamping and fixing device

Abstract

The invention discloses a beam clamping and fixing device. The beam clamping and fixing device is characterized in that the beam clamping and fixing device comprises a base, a stand column fixed to one end of the upper surface of the base, at least one pressing arm arranged on the stand column in a sleeving manner and capable of rotating relative to the stand column, and a beam cushion block capable of horizontally moving on the base; and each pressing arm comprises a vertical arm arranged on the stand column in a sleeving manner, a telescopic horizontal arm perpendicularly fixed to the vertical arm, and a beam clamping head perpendicularly arranged at the front end of the horizontal arm, wherein the beam clamping head is parallel to the vertical arm and can move in the vertical direction. According to the beam clamping and fixing device, the brand-new structural design is adopted, and the problems that in the prior art, the operation space is small and the beam restraining force is not enough are solved. The beam clamping and fixing device has the beneficial effects of being simple in structure, low in production and maintenance cost, high in universality and firm and reliable in clamping.

Description

technical field [0001] The invention belongs to the field of basic tooling design, and in particular relates to a beam clamping and fixing device. It is especially suitable for assembly and welding of the top cover of urban rail vehicles. Background technique [0002] The beam body clamping device is widely used in the manufacturing industry. Currently, the roof assembly welding tool used is figure 1 As shown, the structure is mainly composed of a seat body 100, a connecting seat 101, a pull block 102, a beam cushion block 103, a T-slot bolt 104, a pressing arm 105, a beam pressing block 106, and an adjusting gasket. [0003] The main feature of this mechanism is that the left side of the seat body is the beam body clamping platform, and the right side is the beam body fixing platform. It is successfully placed on the clamping platform. In order to ensure the position adjustment of the beam cushion block, the left and right position movement is controlled by T-slot bolts 1...

AI Technical Summary

Problems solved by technology

This results in limited space on the beam clamping platform, and for beams with complex structures, the space is insufficient

[0007] 3. The long column structure of the beam fixed platform is too bulky

[0008] 4. The left and right degrees of freedom of the structure are insufficiently constrained. When the beam body bears a large horizontal force, the beam structure is prone to slide left and right

[0009] 5. The design structure of the left and right horizontal position adjustment of the beam pad on the beam clamping platform has the disadvantages of difficult operation and easy damage of bolts.

[0010] 6. Due to the limited space of the beam body clamping platform, the height of the beam pad 103 needs to be adjusted during the beam clamping process, which has the disadvantages of many components, difficult operation, easy damage, and low work efficiency.

[0011] To sum up, the project of the clamping and fixing device of the center beam in the prior art has low versatility, and cannot be applied to the production of different types of vehicles such as magnetic levitation and intercity EMUs

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