CN216706527U

CN216706527U - Adjustable welding fixture

Info

Publication number: CN216706527U
Application number: CN202220224369.0U
Authority: CN
Inventors: 郭广磊; 王远森; 关强; 翁琳惠; 梁景律
Original assignee: Xiamen Jimei Vocational And Technical School
Current assignee: Xiamen Jimei Vocational And Technical School
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-10
Anticipated expiration: 2032-01-27

Abstract

The utility model provides an adjustable welding fixture which comprises a turnover bottom plate and a plurality of fixture bodies. The overturning bottom plate is provided with a plurality of through holes and a plurality of supporting blocks. The supporting block and the clamp body are respectively detachably mounted on the through hole. The clamp body comprises a support and a clamp, and the clamp body is constructed to be capable of moving on a three-dimensional space by adjusting the height of the support or fixing the support on different through holes and then driving the clamp to move. The adjustable welding fixture can adjust the welding fixture in X, Y, Z three spatial dimensions by adjusting the mounting position of the fixture body, the height of the support and the position of the clamp, so that the problems of welding deformation and the like caused by the fact that the welding shape of thin-walled parts of a forklift is heterogeneous and the clamping point is difficult to accurately confirm can be solved. The welding fixture is suitable for welding thin-wall parts with different thicknesses, heights or sizes, not only improves the welding efficiency, but also can reduce the production and manufacturing cost.

Description

Adjustable welding fixture

Technical Field

The utility model relates to the technical field of welding fixtures, in particular to an adjustable welding fixture.

Background

A jig is a device used to fix a work piece during a machine manufacturing process, thereby fixing the work piece in a correct position for construction or inspection. With the continuous development of economy, the market demand for forklifts is increasing day by day, therefore the quantity of fork truck welding frock also is growing gradually. The wheel chamber wallboard and the seat support of current fork truck are mostly sheet metal walling spare, and its is bulky, and is in large quantity, and demonstrate characteristics such as the wall is thin, the area is big and the shape is different from each other to lead to its rigidity poor, welding yielding. In the welding of thin-wall parts of forklifts, if the six-point positioning principle (3-2-1 positioning) of a rigid body is adopted, the thin-wall parts can deform due to the self-weight or the clamping force, so that the positioning precision is influenced. In addition, the welding of the thin-wall part mainly generates wave deformation, and more auxiliary positioning points and auxiliary clamping points are usually adopted for preventing the deformation. In welding, the proportion of welding time occupied by the welding technology is 20%, and the welding efficiency of 80% depends on a welding fixture and welding equipment before welding.

The existing standard clamping device is mostly a clamp, the fixed support of the clamp is not adjustable in X, Y, Z three spatial dimensions, so that the fixed support needs to be used at different positions and heights when different products are welded, the universal production on a production line cannot be realized due to lack of universality, the production efficiency of thin-wall parts is influenced, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adjustable welding fixture, and aims to solve the problems that the existing welding fixture is low in universality, small in application range, easy to deform a machined workpiece, poor in stability and the like.

The utility model is realized by the following steps:

an adjustable welding fixture, comprising:

the turnover base plate is provided with a plurality of through holes and a plurality of supporting blocks, and the supporting blocks are detachably arranged on the through holes; and

the fixture comprises a plurality of fixture bodies, wherein the fixture bodies are detachably mounted on the turnover bottom plate, each fixture body comprises a support and a clamp arranged on the support, each clamp is used for fixing a thin-walled part, and each fixture body is constructed into a structure capable of adjusting the height of the support or fixing the support on different through holes so as to drive the corresponding clamp to move to realize the movement of the fixture body on a three-dimensional space.

Further, in a preferred embodiment of the present invention, the supporting block is disposed in the middle of the turnover bottom plate and is used for supporting the thin-walled member.

Further, in a preferred embodiment of the present invention, the plurality of clamp bodies are symmetrically disposed on two sides of the thin-walled member.

Further, in a preferred embodiment of the present invention, the support includes a support, and two fixing pins are disposed at the bottom of the support, and the two fixing pins are correspondingly inserted into any two adjacent through holes and are in transition fit with the through holes.

Further, in a preferred embodiment of the present invention, the support further includes a support slide rail disposed in the support, and the support slide rail can slide along a length direction of the support and is fixed to the support through a self-locking plunger.

Further, in a preferred embodiment of the present invention, a threaded hole is further formed in one side of the bracket, and the self-locking plunger is fixed in the threaded hole through a fastening nut.

Further, in a preferred embodiment of the present invention, the support slide rail is further provided with a plurality of fixing holes with different heights, and the fixture body adjusts the height of the support by fixing the self-locking plunger on the fixing holes with different heights.

Further, in a preferred embodiment of the present invention, the clamp includes a clamp support fixed to an end of the support remote from the roll-over base.

Further, in a preferred embodiment of the present invention, the clamp further includes a clamp handle and an adjusting bolt respectively disposed on the clamp support, and the clamp is configured to move the adjusting bolt in a horizontal direction by shaking the clamp handle to loosen or clamp the thin-walled member.

The utility model has the beneficial effects that:

the adjustable welding fixture comprises an overturning bottom plate and a plurality of fixture bodies. The turnover bottom plate is provided with a plurality of through holes and a plurality of supporting blocks. The supporting block and the clamp body are respectively detachably mounted on the through hole. The clamp body comprises a support and a clamp, and the clamp body is constructed into a through hole which can be used for adjusting the height of the support or fixing the support on different through holes, so that the clamp is driven to move to realize the movement of the clamp body on a three-dimensional space. The adjustable welding fixture can adjust and fasten the welding fixture in X, Y, Z three spatial dimensions by adjusting the mounting position of the fixture body, the height of the support and the position of the clamp, so that the problems of welding deformation and the like caused by the fact that the welding shape of a forklift thin-wall part is heterogeneous and the clamping point is difficult to accurately confirm are solved. Meanwhile, the welding fixture is suitable for welding thin-wall parts with different thicknesses, heights or sizes, not only improves the welding efficiency and the production efficiency, but also saves manpower and material resources and further reduces the production and manufacturing cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic structural view of an adjustable welding fixture according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a flipping base according to an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of an adjustable weld fixture of an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a latching plunger according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 4, an embodiment of the present invention provides an adjustable welding jig, which includes a turnover base plate 1 and a plurality of jig bodies detachably mounted on the turnover base plate 1. Preferably, the flipping base plate 1 is a steel plate.

Referring to fig. 1 and 2, in the present embodiment, the turnover base plate 1 is provided with a plurality of through holes 11 and a plurality of supporting blocks 12. The through holes 11 are arranged on the turnover base plate 1 at equal intervals. The supporting block 12 is detachably fixed on the through hole 11, is located in the middle of the turnover bottom plate 1, and is used for supporting the thin-wall part 2. Preferably, the diameter of the through hole 11 is 12 mm.

The clamp bodies are detachably mounted on the turnover bottom plate 1, and the plurality of clamp bodies are symmetrically arranged on two sides of the thin-wall plate 2. The clamp body comprises a support 3 and a clamp 4 arranged on the support 3. The clamp 4 is used for fixing the thin-walled part 2. The clamp body is constructed to move on a three-dimensional space by adjusting the height of the support 3 or fixing the support 3 on different through holes 11 and then driving the clamp 4 to move. Due to the large volume of the thin-walled part 2, at least 2

support blocks

12 and 3 clamp bodies are required to fully constrain the thin-walled part. It should be noted that, in the manufacturing process of the forklift, the shapes and sizes of the different thin-wall parts 2 are different, and the thicknesses, lengths and heights of the thin-wall parts are also different, so that the number of the supporting blocks 12 and the number of the clamp bodies can be selected according to needs in actual use, and the utility model is not limited in particular.

Referring to fig. 1 and 3, in the present embodiment, the support 3 includes a bracket 31 and a support slide rail 32 disposed in the bracket 31. The bottom of the bracket 31 is provided with two fixing pins 33. Preferably, the fixing pin 33 has a diameter of 12 mm. Two fixed pins 33 are correspondingly inserted into any two adjacent through holes 11 and are in transition fit with the through holes 11, so that the phenomenon that the support 3 is shaken or even slides out due to clearance fit can be avoided. A threaded hole is further formed in one side of the support 31, and the self-locking plunger 5 is fixed in the threaded hole through a fastening nut 6. The support slide rail 32 can slide along the length direction of the bracket 31 and is fixed on the bracket 31 through the self-locking plunger 5.

Referring to fig. 3 and 4, in the present embodiment, a plurality of fixing holes with different heights are formed on the support slide rail 32 at equal intervals. The fixture body can adjust the height of the support 3 by fixing the self-locking plunger 5 on fixing holes with different heights. Specifically, the self-locking plunger 5 includes a slider 51, a mounting bolt 52, a return spring 53, and a lock pin. The slider 51 is connected to the locking pin and a mounting bolt 52 is provided between the slider 51 and the locking pin. The locking pin comprises a pin head 54, and a return spring 53 is arranged between the pin head 54 and the slider 51. The slider 51 can move under the action of external force, and then the pin head 54 is driven to move towards the side far away from the support 3 until the pin head 54 is separated from the fixing hole. At this time, the holder slide rail 32 can be moved along the length of the bracket 31 to adjust the height of the clamp 4. After the height adjustment is completed, the slider 51 is released, and at this time, the pin head 54 is moved toward the side close to the holder 3 by the spring force and inserted into the fixing hole, thereby fixing the holder slide rail 32 to the bracket 31. The support sliding rail 32 can be locked on the bracket 31 by penetrating a locking pin on the self-locking plunger 5 into any one fixing hole. Compared with the height adjustment through threads, the height adjustment through the fixing hole and the self-locking plunger 5 is convenient, the adjustment time is short, and the use by operators is convenient.

Referring to fig. 1 and 3, in the present embodiment, the clamp 4 includes a clamp holder 41, a clamp handle 42, and an adjustment bolt 43. The clamp support 41 is fixed to the end of the support 31 remote from the roll-over base 1. The clamp handle 42 and the adjusting bolt 43 are both disposed on the clamp support 41. The clamp 4 is configured to move the adjusting bolt 43 in a horizontal direction by rocking the clamp handle 42 to loosen or clamp the thin-walled member 2.

When thin-wall parts 2 with different thicknesses are welded, the thin-wall parts with different thicknesses can be quickly adjusted and clamped only by adjusting the adjusting bolts 43 on the clamps 4 or installing the support 3 in different hole positions on the turnover bottom plate 1 along the Y-axis direction, so that the welding fixture is suitable for welding the thin-wall parts 2 with different thicknesses. When thin-wall parts 2 with different lengths are welded, the support 3 is only required to be arranged in different hole positions of the turnover bottom plate 1 along the X-axis direction, and the thin-wall parts 2 with different lengths can be quickly adjusted and clamped. When the thin-wall parts 2 with different heights are welded, the thin-wall parts 2 with different heights can be quickly adjusted and clamped as long as the sliding support sliding rail 32 reaches the required height and is locked on the fixing hole at the height through the self-locking plunger 5.

The adjustable welding fixture can adjust and fasten the welding fixture in X, Y, Z three spatial dimensions by adjusting the mounting position of the fixture body, the height of the support 3 and the position of the clamp 4, and has the advantages of convenient adjustment, high universality, wide application range, convenient operation and long service life. When welding, the welding positioning points and the clamping points of different thin-wall pieces 2 can be confirmed only by moving the support 3 in the direction X, Y, Z, so that the problems of welding deformation and the like caused by the fact that the welding shape of the forklift thin-wall pieces 2 is different and the clamping points are difficult to accurately confirm are solved. Meanwhile, the welding fixture is suitable for welding thin-wall parts 2 with different thicknesses, heights or sizes. When the welding parts of different products are replaced on the production line, the welding stations and the welding clamps are not required to be replaced, so that the welding efficiency and the production efficiency are improved, and manpower and material resources can be saved, and the production and manufacturing cost is reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable welding fixture, comprising:

2. The adjustable welding fixture of claim 1, wherein said support block is disposed in a middle portion of said inverted base plate for supporting said thin wall member.

3. The adjustable welding fixture of claim 1, wherein a plurality of said fixture bodies are symmetrically disposed on opposite sides of a thin wall member.

4. The adjustable welding fixture of claim 1, wherein the support comprises a support frame, and two fixing pins are disposed at the bottom of the support frame, and are correspondingly inserted into any two adjacent through holes and are in transition fit with the through holes.

5. The adjustable welding fixture of claim 4, wherein the support further comprises a support slide track disposed within the cradle, the support slide track being slidable along a length of the cradle and secured to the cradle by a self-locking plunger.

6. The adjustable welding fixture of claim 5, wherein a threaded hole is further defined in one side of the bracket, and the self-locking plunger is secured in the threaded hole by a fastening nut.

7. The adjustable welding fixture as claimed in claim 6, wherein the support rail further defines a plurality of fixing holes with different heights, and the fixture body is configured to adjust the height of the support by fixing the self-locking plunger to the fixing holes with different heights.

8. The adjustable weld fixture of claim 1, wherein the clamp includes a clamp mount secured to an end of the mount distal from the roll-over shoe.

9. The adjustable welding fixture of claim 8, wherein the clamp further comprises a clamp handle and an adjusting bolt respectively disposed on the clamp support, and the clamp is configured to move the adjusting bolt in a horizontal direction by shaking the clamp handle to loosen or clamp the thin-walled part.