CN220880927U - Welding head fastening and adjusting mechanism - Google Patents
Welding head fastening and adjusting mechanism Download PDFInfo
- Publication number
- CN220880927U CN220880927U CN202321779690.6U CN202321779690U CN220880927U CN 220880927 U CN220880927 U CN 220880927U CN 202321779690 U CN202321779690 U CN 202321779690U CN 220880927 U CN220880927 U CN 220880927U
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- connecting rod
- welding head
- mounting hole
- head main
- clamping
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- 238000003466 welding Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a welding head fastening and adjusting mechanism which comprises a nozzle, a connecting rod, a welding head main body, a clamping nut and a clamping sleeve, wherein the nozzle is connected with the connecting rod, the clamping sleeve is a spring chuck, the clamping nut is sleeved outside the clamping sleeve to form a clamping device, and the other end of the connecting rod is connected with one end of the welding head main body in a fastening and detachable manner through the clamping device. When the connecting rod is fixed on the welding head main body, the end part of the connecting rod is inserted into the welding head main body, the clamping nut is pressed from one side of the connecting rod to the direction of the welding head main body, one end of the clamping sleeve is pressed into the welding head main body, and the other end of the clamping sleeve is pressed by the clamping nut, so that the clamping sleeve clamps the connecting rod; when the nozzle height needs to be adjusted, the clamping nut is loosened, the clamping sleeve moves slightly towards the connecting rod, but the welding nozzle cannot rotate due to the fact that the welding head main body still has pressure and friction force on the clamping sleeve.
Description
Technical Field
The utility model relates to the technical field of handheld welding guns, in particular to a welding head fastening and adjusting mechanism.
Background
Laser processing is increasingly favored in the industry because of its high efficiency and precision characteristics.
The nozzle of the handheld welding gun is connected with the welding head main body through a connecting rod. When welding is carried out by hand, the height of the nozzle needs to be frequently adjusted because of the need to use different spot sizes or different focal spot welding. How to efficiently and conveniently adjust the height of the nozzle is an important factor affecting the handheld welding head.
As shown in fig. 1, a conventional weld head manufacturer typically uses a lock nut 10 to secure a connecting rod 20 and a weld head body 30: first, threads are provided at the ends of the connection rod 20 and the joint body 30, respectively, and the connection rod 20 is connected to the joint body 30 by the threads. Because the connecting rod 20 is easily loosened after being stressed during the welding process, a technician may add one lock nut 10 to secondarily lock the connecting rod 20 and the welding body 30, i.e., the conventional double nut structure is locked. However, this method has the disadvantages: each time the nozzle connecting rod 20 is adjusted, the locking nut 10 is loosened and then the connecting rod 20 is twisted, so that the height of the connecting rod 20 is changed, but the technician has to use the locking nut 10 to lock the connecting rod 20 after readjusting the direction of the nozzle because the rotation of the connecting rod 20 inevitably rotates along with the nozzle. This process is cumbersome and cumbersome, greatly affecting the use experience.
In order to solve the above problems, some manufacturers may integrally provide a single-ended clamp 400 at the end of the welding head main body 300, as shown in fig. 2, and the single-ended clamp 400 may elastically compress the connection rod 200 when the connection rod is locked by the lock nut 100. However, in order to make the product lightweight, the material of the welding head main body 300 is usually an aluminum alloy, and after a period of use, the single-ended chuck 400 integrally formed with the welding head main body 300 is deformed, so that the clamping force is insufficient, or the welding head main body cannot be loosened after being clamped, and further, the nozzle connecting rod 200 is not easy to loosen.
Disclosure of utility model
In view of the background art, an object of the present utility model is to provide a welding head fastening and adjusting mechanism capable of adjusting the height of a nozzle quickly and maintaining high reliability.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
The utility model provides a welding head fastening adjustment mechanism, includes nozzle, connecting rod and welding head main part, nozzle and connecting rod are connected, still include clamping nut and clamp cover, the clamp cover is the collet chuck, clamping nut cover is located the clamp cover constitutes clamping device outward, the other end of connecting rod with one end of welding head main part is through clamping device can fasten detachably connect.
Preferably, the one end of the welding head main body is a columnar connecting portion, a step hole is formed in the outer end face of the columnar connecting portion along the axial direction of the columnar connecting portion and inwards, the step hole is formed by an inner connecting rod mounting hole and an outer jacket mounting hole, the jacket is sleeved outside the connecting rod, the end portion of the connecting rod is used for being inserted into the connecting rod mounting hole, and one end of the jacket is used for being inserted into the jacket mounting hole.
Preferably, when the connecting rod and the welding head main body are in a fastening state, the maximum radial dimension of the one end of the jacket is equal to the radial dimension of the jacket mounting hole, so that the highest point of the inclined surface of the one end of the jacket is clamped outside the jacket mounting hole.
Preferably, an avoidance groove is formed in the outer side wall of the welding head main body corresponding to the jacket mounting hole and used for accommodating the clamping nut.
When the connecting rod needs to be fixed in the welding head main body, the end part of the connecting rod is inserted into the connecting rod mounting hole, the clamping nut is tightly pressed from one side of the connecting rod to the direction of the welding head main body, one end of the clamping sleeve is pressed into the clamping sleeve mounting hole, and as the one end of the clamping sleeve is an inclined plane, the inclined plane gradually enters the clamping sleeve mounting hole along with the pushing of the clamping nut, the interaction force between the clamping sleeve and the clamping sleeve mounting hole is gradually increased, the other end of the clamping sleeve is tightly pressed by the clamping nut, and at the moment, the clamping nut and the welding head main body generate pressure towards the axle center on the clamping sleeve, so that the clamping sleeve clamps the connecting rod.
When the height of the nozzle needs to be adjusted, the clamping nut is loosened, the highest point of the inclined plane of one end of the clamping sleeve slightly moves towards the direction of the connecting rod due to the fact that the downward pressure of the clamping nut on the clamping sleeve is removed, but the connecting rod and the clamping sleeve are still connected on the welding head main body and do not move due to the fact that the welding head main body still has pressure and friction force on the one end of the clamping sleeve, the height of the connecting rod can be adjusted, and the welding nozzle cannot rotate.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model creatively applies the collet chuck as the jacket to the handheld welding gun, and because the structure of the jacket forms a periodical zigzag structure, the jacket is distributed from one end to the other end in a low, high, low, high and low mode in each period, the low points at the two ends ensure that the jacket is easily pressed into the clamping nut and the welding head main body, and the middle two high points ensure that the clamping force given by the clamping nut and the welding head main body to the connecting rod is larger and larger when the clamping nut and the welding head main body are pressed. Moreover, the zigzag structure divides the jacket into n parts, so that each part is tightly attached to the connecting rod, and the connecting rod is tightly connected with the welding head main body.
Drawings
FIG. 1 is a schematic view of a weld head tightening adjustment mechanism as described in the background;
FIG. 2 is a schematic view of another weld head tightening adjustment mechanism described in the background;
Fig. 3 and 4 are a schematic perspective view and a schematic cross-sectional view, respectively, of a welding head fastening adjustment mechanism according to an embodiment of the present application;
Fig. 5 is a schematic view of the structure of the clamping nut and the clamping sleeve according to the embodiment of the present application.
Detailed Description
The present embodiment provides a welding head fastening and adjusting mechanism, as shown in fig. 3 and 4, which comprises a nozzle 1, a connecting rod 2, a clamping nut 3, a clamping sleeve 4 and a welding head main body 5.
The nozzle 1 and the connecting rod 2 are connected into a whole, the clamping nut 3 is matched with the jacket 4, the clamping nut 3 is sleeved outside the jacket 4 to form a clamping device, and the other end of the connecting rod 2 and one end of the welding head main body are connected in a fastening and detachable manner through the clamping device. The collet 4 is a fixed locking device, commonly referred to as an ER collet or a collet, as shown in FIG. 5.
The welding head main body 5 is provided with a connecting part, a cylindrical connecting part is arranged at one end, a step hole is formed inwards along the axial direction of the cylindrical connecting part from the outer end surface of the connecting part, the step hole is formed by an inner connecting rod mounting hole 51 and an outer jacket mounting hole 52, the jacket 4 is sleeved outside the connecting rod 2, the free end of the connecting rod 2 is matched with the connecting rod mounting hole 51, the free end of the connecting rod 2 can be inserted into the connecting rod mounting hole 51, and one end of the jacket 4 is used for being inserted into the jacket mounting hole 52. An annular avoidance groove 53 is formed in the outer wall of the welding head main body 5 outside the jacket mounting hole 52, and is used for accommodating the end part, facing the welding head main body 5, of the clamping nut 3 when the welding head main body 5 and the connecting rod 2 are mutually fastened.
When the connecting rod 2 and the welding head main body 5 need to be fastened to each other, the free end of the connecting rod 2 is inserted into the connecting rod mounting hole 51, the clamping nut is pressed from one side of the connecting rod 2 to the welding head main body 5, one end of the clamping sleeve 4 is pressed into the clamping sleeve mounting hole 52, and as the outer surface of the end of the clamping sleeve 4 is an inclined surface, the inclined surface gradually enters the clamping sleeve mounting hole 52 along with the pushing of the clamping nut 3, the interaction force between the clamping sleeve 4 and the clamping sleeve mounting hole 52 is gradually increased, the other end of the clamping sleeve 4 is pressed by the clamping nut 3, and at the moment, the clamping nut 3 and the welding head main body 5 both generate pressure towards the axle center on the clamping sleeve 4, so that the clamping sleeve 4 clamps the connecting rod 2. And: when the connecting rod 2 and the welding head main body 5 are in a fastened state, the maximum radial dimension of the one end of the collet 4 is equal to the radial dimension of the collet mounting hole 52, so that the highest point of the inclined surface of the one end of the collet 4 is caught outside the collet mounting hole 52.
When the height of the nozzle 1 needs to be adjusted, the clamping nut 3 is loosened, the highest point of the inclined plane of the one end of the clamping sleeve 4 slightly moves to the direction of the connecting rod 2 due to the pressure removal of the clamping nut 3 to the clamping sleeve 4, but the connecting rod 2 and the clamping sleeve 4 are still connected on the welding head main body 5 and do not move due to the fact that the welding head main body 5 still has pressure and friction force to the one end of the clamping sleeve 4, and therefore the height of the connecting rod 2 can be adjusted, and the welding nozzle 1 cannot rotate.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (4)
1. The utility model provides a welding head fastening adjustment mechanism, includes nozzle, connecting rod and welding head main part, nozzle and connecting rod connect, its characterized in that still includes clamping nut and clamp cover, the clamp cover is the collet chuck, clamping nut cover is located the clamp cover constitutes clamping device outward, the other end of connecting rod with one end of welding head main part is through clamping device can fasten detachably connects.
2. The welding head fastening and adjusting mechanism according to claim 1, wherein the one end of the welding head main body is a columnar connecting portion, an outer end face of the columnar connecting portion is provided with a step hole inwards along an axial direction, the step hole is formed by an inner connecting rod mounting hole and an outer jacket mounting hole, the jacket is sleeved outside the connecting rod, the end portion of the connecting rod is used for being inserted into the connecting rod mounting hole, and one end of the jacket is used for being inserted into the jacket mounting hole.
3. The bonding head fastening adjustment mechanism according to claim 2, wherein a maximum radial dimension of the one end of the collet is equal to a radial dimension of the collet mounting hole when the connecting rod and the bonding head body are in a fastened state such that a highest point of an inclined surface of the one end of the collet is caught outside the collet mounting hole.
4. A welding head fastening adjustment mechanism according to any one of claims 1 to 3, wherein the outer side wall of the welding head body corresponding to the jacket mounting hole is provided with a relief groove for accommodating the clamping nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321779690.6U CN220880927U (en) | 2023-07-07 | 2023-07-07 | Welding head fastening and adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321779690.6U CN220880927U (en) | 2023-07-07 | 2023-07-07 | Welding head fastening and adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220880927U true CN220880927U (en) | 2024-05-03 |
Family
ID=90874615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321779690.6U Active CN220880927U (en) | 2023-07-07 | 2023-07-07 | Welding head fastening and adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220880927U (en) |
-
2023
- 2023-07-07 CN CN202321779690.6U patent/CN220880927U/en active Active
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