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A technology for assembling fixtures and fixtures, which is applied in auxiliary devices, manufacturing tools, auxiliary welding equipment, etc., and can solve the problems of high processing cost and low processing efficiency.
Inactive Publication Date: 2017-05-10
CRRC YANGTZE CO LTD
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[0004] Aiming at the problems existing in the prior art, the embodiment of the present invention provides an assembly fixture and an assembly method, which are used to solve the problem that in the prior art, when assembling the door frame at the bottom of the funnel car, the components of the bottom door frame can only be welded first. After the completion, the large drilling equipment is used to align and drill the whole hole, which leads to technical problems of high processing cost and low processing efficiency
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Embodiment 1
[0038] This embodiment provides an assembly fixture, such as figure 1 As shown, the fixture includes: a first beam 1, a second beam 2, a third beam 3, and a fourth beam 4; wherein, the first beam 1, the second beam 2, and the third beam 3 and the fourth crossbeam 4 are connected in turn to form a positioning frame; the positioning frame is used for positioning the bottom door frame of the funnel car, and the shape and size of the positioning frame are consistent with the shape and size of the bottom door of the bottom frame of the funnel car.
[0039] The positioning frame is provided with a positioning hole, and the size and position of the positioning hole are consistent with the size and position of the bolt hole on the bottom door frame and the size and position of the bolt hole on the bottom door. Wherein, when welding the positioning frame, the positioning frame is assembled and welded on a standard platform, and the working surface is milled flat after the assembly and ...
Embodiment 2
[0058] Corresponding to Embodiment 1, this embodiment also provides an assembly method, such as image 3 As shown, the method includes:
[0059] S301. Using the first beam, the second beam, the third beam and the fourth beam to form a positioning frame.
[0060] In this step, see figure 1 , connecting the first crossbeam 1, the second crossbeam 2, the third crossbeam 3 and the fourth crossbeam 4 in sequence to form a positioning frame; the positioning frame is used for positioning the bottom door frame of the hopper car, The shape and size of the positioning frame are consistent with the shape and size of the bottom door of the hopper car chassis;
[0061] The positioning frame is provided with a positioning hole, and the size and position of the positioning hole are consistent with the size and position of the bolt hole on the bottom door frame and the size and position of the bolt hole on the bottom door. Wherein, when welding the positioning frame, the positioning frame ...
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Abstract
The invention provides an assembling fixture and an assembling method. The fixture comprises a first cross beam, a second cross beam, a third cross beam and a fourth cross beam; wherein the first cross beam, the second cross beam, the third cross beam and the fourth cross beam are connected in sequence to form an aligning frame; the aligning frame is used for a bottom door frame of a positioning hopper car, the size of the aligning frame is consistent with the size of a bottom door of a bottom frame of the hopper car; a positioning hole is arranged on the aligning frame, the size and the location of the positioning hole are consistent with the size and the location of a screw bolt hole on the bottom door frame and are consistent with the size and the location of the screw bolt hole on the bottom door; in this way, every component on the bottom door frame is separately drilled holes by firstly using mini type equipment, then every component is fixed-position welded by utilizing the aligning frame, the separate drilling for every component in such a way not only enables the drilling efficiency to be increased but also makes it possible to lower the processing cost.
Description
technical field [0001] The invention belongs to the technical field of railway transportation, and in particular relates to an assembly fixture and an assembly method. Background technique [0002] In the railway wagon manufacturing industry, the hopper car is a major vehicle type. Generally speaking, the bottom door of a certain type of hopper car is connected to the bottom door frame by several bolts. To ensure that the bottom door can be assembled smoothly, it must be ensured that the size of the bottom door frame and the positions of all bolt holes are consistent with the bottom door frame. Doors match. [0003] In the prior art, generally, after the components of the bottom door frame are assembled and welded, holes are drilled as a whole, so as to ensure that the bottom door frame and the bottom door frame can be matched and connected. The disadvantage of this method is that the size of the bottom door frame is large, and a large drilling device must be used to drill...
Claims
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Application Information
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