CN220161621U - Integrated cam axle box and split follow-up welding fixture thereof - Google Patents

Abstract

The utility model relates to the field of camshaft box structures, and provides an integrated camshaft box and a split follow-up welding fixture thereof, which comprises an integrated camshaft box structure and a welding fixture structure, wherein the box is made of an aluminum alloy material, and an integrated profile section is designed, so that the integrated camshaft box is light in weight, high in strength, good in heat dissipation performance and long in service life; the welding fixture can clamp boxes with different lengths, adjust clamping positions, facilitate welding, and reduce the cost ratio of the fixture; the welding fixture can be subjected to stress relief annealing along with the box body, so that the manufacturing period of the box body is shortened, and the production efficiency is improved.

Description

Integrated cam axle box and split follow-up welding fixture thereof

Technical Field

The utility model relates to the field of camshaft box structures, in particular to an integrated camshaft box and a split follow-up welding fixture thereof.

Background

The camshaft housing is an important component in a piston engine and is used to control the opening and closing motion of the valves. Because the law of valve motion is related to the power and operating characteristics of an engine, camshaft boxes play a very important role in the design of the engine.

In the prior art, the camshaft box body is made of high-quality alloy steel, and the camshaft box body is divided into a left part and a right part, is assembled and welded with a top structural member for forming, has heavy self weight and is easy to deform after welding. Most welding fixture is to specific length product, but not adjustable. If the box bodies with different length and size are welded, tool clamps are additionally manufactured, so that the cost pressure is increased.

The existing steel camshaft box and the welding fixture have the following defects: 1. the steel material camshaft box body has large mass, and the split processing and the whole deformation after welding are large; 2. the welding fixture is not adjustable aiming at the box body with a specific length, and the fixture cost is high; 3. the clamp is fixed and immovable in position, so that the site occupancy rate is high; 4. the deformation after welding is difficult to control, the stress after welding adopts natural aging treatment, and the production period of the box body is overlong.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide the split follow-up welding fixture for the integrated camshaft box, wherein the box body is made of an aluminum alloy material, and the integrated profile section is designed, so that the integrated camshaft box is light in weight, high in strength, good in heat dissipation performance and long in service life; the welding fixture can clamp boxes with different lengths, adjust clamping positions, facilitate welding, and reduce the cost ratio of the fixture; the welding fixture can be subjected to stress relief annealing along with the box body, so that the manufacturing period of the box body is shortened, and the production efficiency is improved.

The utility model provides an integration camshaft box and components of a whole that can function independently follow-up welding frock clamp thereof, includes integral type camshaft box structure and welding frock clamp structure, integral type camshaft box structure includes box, left end board, right end board, goes up the floor, lower floor, welding frock clamp includes frock support, stopper, wedge locating piece, components of a whole that can function independently slide rail, realizes through the box of the fixed different specifications of stopper and wedge locating piece that the components of a whole that can function independently slide rail is last freely to remove.

The box body comprises a radiating fin design, and is produced by integrally adopting an aluminum alloy section extrusion with the box body.

The tool support is connected with the split sliding rail through bolts, the limiting block comprises a width limit, an upper limit, a lower limit and an inner limit, the width limit and the lower limit are connected through bolts, the inner limit and the lower limit are connected through bolts, and the upper limit and the inner limit are connected through bolts.

The lower part limiting and the split sliding rail are in interlocking sliding connection in a dovetail groove shape, the wedge-shaped positioning block penetrates through the middle through groove of the split sliding rail and is fixedly connected with the lower part limiting, and the whole split clamp can freely move on the split sliding rail through adjusting the wedge-shaped positioning block and the lower part limiting, so that the welding processing of cam axle box products in the same type and different specifications can be met.

Compared with the prior art, the utility model has the advantages and positive effects that: the camshaft box body is integrally processed by designing the aluminum alloy section bar, so that the camshaft box body is light in weight, corrosion-resistant, few in welding procedures and long in service life; the integrated design reduces the number of welding beads, improves the sealing performance and the overall strength of the product, increases the radiating fins on two sides of the box body, and improves the radiating capacity of the box body. The fixture can clamp the boxes with different lengths, achieves multiple purposes, and avoids the problem that the welding procedure is affected by the fact that the clamping points of the conventional fixture are fixed and the positions cannot be adjusted at will. The position of the follow-up clamp can be adjusted at any time in the welding process, so that the welding is convenient; space utilization rate is improved, and cost pressure is reduced; the split clamp can be adjusted in position in the welding process, so that the welding process is convenient; the welding fixture is designed by adopting a heat-resistant stainless steel material, and can be subjected to stress relief annealing treatment along with the box body, so that the deformation of the welded box body is prevented, and the production and manufacturing period is shortened.

Drawings

FIG. 1 is a schematic diagram of an aluminum alloy integrated camshaft housing;

FIG. 2 is a sectional view of a box section;

FIG. 3 is a schematic view of the left end plate;

FIG. 4 is a schematic view of the right end plate;

FIG. 5 is a schematic view of an upper rib;

FIG. 6 is a schematic view of a lower rib;

FIG. 7 is a schematic diagram of a welding tooling clamping camshaft housing;

FIG. 8 is a schematic structural view of a split welding fixture;

FIG. 9 is a schematic view of a slide rail and locating wedge connection;

FIG. 10 is a schematic diagram of a split welding fixture connection;

FIG. 11 is a schematic illustration of a portion of a split clamp with heat treatment of a part.

In the figure: 1. the box body, 2, left end plate, 3, right end plate, 4, go up the floor, 5, lower floor, 6, the frock support, 7, width is spacing, 8, upper portion is spacing, 9, lower part is spacing, 10, inboard is spacing, 11, wedge locating piece, 12, components of a whole that can function independently slide rail.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

An integrated camshaft box and a split follow-up welding fixture thereof, comprising an integrated camshaft box structure and a welding fixture structure;

the integrated camshaft box structure is formed by welding a box body 1 with a left end plate 2, a right end plate 3, an upper rib plate 4 and a lower rib plate 5 in a combined mode, the main functions of the left end plate 2 and the right end plate 3 are sealing, the main functions of the upper rib plate 4 and the lower rib plate 5 are internal supporting, and the integral strength of the integrated camshaft box is guaranteed to meet the requirements, as shown in fig. 1-6;

the welding fixture structure comprises a fixture bracket 6, a width limit 7, an upper limit 8, a lower limit 9, an inner limit 10, a wedge-shaped positioning block 11 and a split sliding rail 12: the split sliding rail 12 is connected with the tool support 6 through bolts, and plays a role in supporting the camshaft box and fixing the tool clamp, as shown in fig. 7 and 11.

The lower part of the integrated camshaft box body structure is arranged in a groove after the lower part limit 9 and the width limit 7 are fastened, the inner wall of the box body is supported by the inner side limit 10 to prevent deformation, and the top of the integrated camshaft box body structure is connected with the upper part limit 8 through bolts to limit the up-and-down displacement of the box body. The inner limit 10 and the wedge-shaped positioning block 11 are fixed on the split sliding rail 12 through bolts, and the inner limit 10 and the upper limit 8 can slide along the length direction of the split sliding rail 12 through adjusting the tightness of the bolts, so that the welding device is suitable for welding boxes with different length specifications, as shown in fig. 8 and 9.

The operation steps of the welding fixture and the connecting integrated camshaft box body are as follows: firstly, the tool support 6 is fixed on the ground through bolts and is connected with the split sliding rail 12, the lower limit 9 and the width limit 7. The box body 1 of the cam box is manually arranged on the lower limit 9, and a connecting bolt of the width limit 7 is screwed by a torque wrench, and the inner limit 10, the wedge-shaped positioning block 11 and the upper limit 8 are connected by bolts and fastened in place; the remainder of the camshaft housing is then welded: a left end plate 2, a right end plate 3, an upper rib plate 4 and a lower rib plate 5. After the camshaft box body is welded, the tool support 6 is detached by a spanner, and other tool parts are not detached to carry out subsequent heat treatment and aging procedures along with the box body, as shown in figures 8 and 9.

The width limit 7 and the lower limit 9 are connected by bolts, and play a role in limiting the width and the bottom, as shown in fig. 10;

the inner limit 10 and the lower limit 9 are connected by bolts, and the main function of the inner limit is to support the inner side wall of the camshaft box to prevent welding deformation, as shown in figures 8 and 10;

the upper limit 8 and the inner limit 10 are connected by bolts, and play a role in limiting in the height direction, as shown in figures 8 and 10;

the split clamp is in interlocking sliding connection with the split sliding rail 12 in a dovetail groove shape through the lower limit 9, and the wedge-shaped positioning block 11 is fixedly connected with the lower limit 9 by penetrating through a through groove in the middle of the split sliding rail 12 through a bolt, as shown in fig. 9 and 10;

by adjusting the wedge-shaped positioning block 11 and the lower limit 9, the whole split clamp can freely move on the split sliding rail 12, and the welding processing of cam box products with the same type and different specifications can be satisfied, as shown in fig. 9;

the width limit 7, the upper limit 8, the lower limit 9, the inner limit 10, the wedge-shaped positioning block 11 and the split sliding rail 12 are subjected to stress relief annealing along with the cam box, so that the problem of large post-welding stress deformation is solved, the production period of a product is greatly shortened, and the economic benefit is improved, as shown in figure 11.

Claims (4)

1. The utility model provides an integration camshaft box and components of a whole that can function independently follow-up welding frock clamp thereof, its characterized in that, including integral type camshaft box structure and welding frock clamp structure, integral type camshaft box structure includes box, left end board, right end board, goes up floor, lower floor, welding frock clamp includes frock support, stopper, wedge locating piece, components of a whole that can function independently slide rail, realizes through the box of stopper and the fixed different specifications of wedge locating piece that the components of a whole that can function independently slide rail is last freely to remove.

2. The integrated camshaft box and split follow-up welding fixture of claim 1, wherein the box comprises a heat radiation fin design and is produced integrally with the box by extrusion of an integrated aluminum alloy section.

3. The integrated camshaft box and split follow-up welding fixture thereof according to claim 1, wherein the fixture support is connected with the split sliding rail by bolts, the limiting block comprises a width limit, an upper limit, a lower limit and an inner limit, the width limit is connected with the lower limit by bolts, the inner limit is connected with the lower limit by bolts, and the upper limit is connected with the inner limit by bolts.

4. The integrated camshaft box and split follow-up welding fixture thereof according to claim 3, wherein the lower limiting part and the split sliding rail are in interlocking sliding connection in a dovetail groove shape, the wedge-shaped positioning block penetrates through the middle through groove of the split sliding rail and is fixedly connected with the lower limiting part by a bolt, and the free movement of the whole split fixture on the split sliding rail can be achieved by adjusting the wedge-shaped positioning block and the lower limiting part, so that the welding processing of camshaft box products in different specifications of the same type can be met.