TWI445599B - Auxiliary clamping tool for welding operation - Google Patents

Description

Auxiliary welding fixture

The present invention relates to a metal welding aid, and more particularly to a fixture for assisting in fixing a metal sheet to be welded during welding.

In the metal welding operation, the stable clamping of the metal plate to be welded is an important prerequisite for successful welding. In the prior art, two pieces of metal plates to be welded are clamped by an impact type or a screw-type jig, but such jigs are time-consuming to operate, and due to the complicated structure, the manufacturing and purchasing costs thereof are relatively high, when a plurality of jigs are to be prepared. When dealing with large-area welding operations, it is a heavy burden for costs. Fixing the clamp after directly clamping the metal plate to be welded with the clamp is an alternative, but it is not economical to prepare multiple clamps with this alternative.

In view of the above deficiencies of the prior art, it is a primary object of the present invention to provide an auxiliary welding fixture comprising a clamp and at least one flexible clip. In use, the flexible clip is placed between the clamp jaws, and the fixing hook of the clamp jaw is fastened to the fixing groove of the flexible clip arm, so that the clamp is When the grip portion is not gripped, the cymbals are relatively clamped, and the free ends of the two arms of the flexible clip are in contact with each other, and when the grip portion of the clamp is gripped, the cymbal is gripped The sheets are relatively open, and the free ends of the arms of the flexible clip are separated from each other.

The invention fits the flexible clip with the clamp, and the operation is convenient and time-saving. Moreover, the present invention can repeatedly operate a plurality of flexible clips with only a single clamp, and has extremely high economic benefits. Furthermore, the flexible clip opening and closing distance of the present invention is 0. Up to 5 mm, the scope of application is large, no need to prepare a variety of specifications clips. In addition, since the flexible clip structure of the present invention is simple in structure and does not occupy a space, it is particularly suitable for a work space where the operation space is narrow compared to the front case buckle.

For the convenience of the description, the central idea expressed by the present invention in the column of the above summary of the invention is expressed by the specific embodiments. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above. In the following description, like elements are denoted by the same reference numerals.

The first and second figures are a perspective view and an exploded perspective view of an auxiliary welding jig according to an embodiment of the present invention. As shown, the auxiliary welding fixture of the present invention is comprised of a clamp 10 and at least one flexible clip 20.

Please refer to the third figure, which is a side view of the clamp 10 of the present case. The clamp 10 has a pair of cymbals 11, 13 and a grip portion comprised of two grips 17, 19 that are joined by a pivot assembly 15. The two jaws 11, 13 are provided with a fixing hook 111, 131 on one side of each other, and the fixing hooks 111, 131 are bent in a direction opposite to the pivot assembly 15. A spring 18 is disposed between the two grips 17, 19, and when the two grips 17, 19 are not gripped, they are normally separated from each other under the force of the spring 18, so that the flaps 11, 13 are relatively clamped. When the two grips 17, 19 are gripped, the spring 18 is compressed and the pivot assembly 15 is caused to open the jaws 11, 13 relatively.

The flexible clip 20 has two arm portions 23 connected via a U-shaped portion 21, and each of the arm portions 23 is provided with a corresponding fastening hook 111, 131. The fixing slot 231 is combined, and each of the arm portions 23 normally contacts the free end 233 of the other arm portion 23 with a free end 233 to form a structure similar to a C-shaped buckle. Further, the flexible clip 20 is The free end 233 can be bent toward the free end 233 of the other arm portion 23. In some embodiments of the present invention, the flexible clip 20 is made of a metal material, so that the structural requirements of flexibility and strength can be achieved.

Please refer to the fourth picture. When the auxiliary welding fixture of the present invention is used, the flexible clip 20 is placed between the jaws 10 and 13 of the clamp 10, so that the fixing hooks 111 and 131 of the jaws 10 and 13 can be smoothly worn. The fixing groove 231 of the arm portion 23 of the flexible clip 20 is inserted, and the fixing hooks 111 and 131 are moved forward to be hooked to the arm portion 23 at the edge of the fixing groove 231 (as shown in FIG. 5).

Therefore, when the two grips 17, 19 of the clamp 10 are not gripped, the jaws 11, 13 are relatively clamped, and the free ends 233 of the two arms 23 of the flexible clip 20 are in contact with each other; When the two grips 17, 19 of the clamp 10 are gripped, the flaps 11, 13 are relatively open, and the free ends 233 of the two arms 23 of the flexible clip 20 are separated from each other. It is also convenient to push the clamp 10 to clamp the flexible clip 20 to both sides of the metal plates 90, 91 to be welded.

Then, when the force of grasping the clamp 10 and the two grips 17, 19 is released, the restoring force of the spring 18 causes the two grips 17, 19 to open, thereby moving the flaps 11, 13 in the clamping direction, and The free ends 233 of the two arms 23 of the flexible clip 20 tightly sandwich the metal plates 90, 91 to be welded.

At this time, as shown in the sixth figure, the clamp 10 can be moved backward relative to the flexible clip 20, so that the fixing hooks 111, 131 of the flaps 11, 13 can be disengaged from the flexible clip 20 arm portion 23. The fixing groove 231. By repeatedly setting a plurality of flexible clips 20 along the interface of the metal plates 90 and 91 to be welded in the above manner, the metal plates 90 and 91 to be welded can be properly positioned to facilitate subsequent welding operations. Compared with the impact type or screw-type clamp of the prior art, the present invention can complete the setting of the flexible clip 20 only by loosely releasing the two grips 17, 19 of the clamp 10, and the operation is very low. Time and effort. Moreover, the present invention can operate the plurality of flexible clips 20 only by a single clamp 10, which has extremely high economic benefits.

The free ends 233 of the two arms 23 of the flexible clip 20 have a maximum separation distance of 5 mm. In other words, the total thickness of the metal sheet that can be clamped by the flexible clip 20 is between 0 and 5 mm. Therefore, the flexible clip 20 of the present invention has a wide application range, and it is not necessary to prepare a plurality of specifications.

In addition, since the flexible clip 20 of the present invention has a simple structure and does not occupy a space, it is particularly suitable for an operation where the operation space is narrow compared to the previous case.

The seventh figure is a schematic diagram of the combination of the clamp of the auxiliary welding fixture of the present invention and another flexible clip embodiment. The flexible clip 30 of the present embodiment also has two arm portions 33 and 35 connected via a U-shaped portion 31. Each of the arm portions 33 and 35 is provided with a fixing groove for engaging the fixing hooks 111 and 131 (Fig. Not shown). The difference from the foregoing embodiment is that the arm portion 33 is longer than the arm portion 35, so that the free ends 331, 351 of the two are partially overlapped with each other in a normal state to form a structure similar to a toothed buckle, which can play a larger clip. Solid strength.

While the invention has been described in terms of the preferred embodiments, the embodiments of the invention The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. Any modifications or variations that are made without departing from the spirit of the invention are intended to be protected.

10‧‧‧ clamp

11, 13‧‧‧ Picture

111, 131‧‧‧ fixed hook

15‧‧‧ pivot assembly

17, 19‧‧‧ Grip

18‧‧‧ Spring

20‧‧‧Flexible clips

21‧‧‧U-shaped

23‧‧‧ Arms

231‧‧‧fixed slot

233‧‧‧Free end

30‧‧‧Flexible clips

31‧‧‧U-shaped

33, 35‧‧‧ Arms

331, 351‧‧‧ free end

90, 91‧‧‧metal sheets to be welded

The first figure is a perspective view of the auxiliary welding fixture of the present invention.

The second figure is an exploded perspective view of the auxiliary welding fixture of the present invention.

The third figure is a side view of the clamp of the auxiliary welding fixture of the present invention.

The fourth figure is a schematic diagram of the combination of the clamp and the flexible clip of the auxiliary welding fixture of the present invention.

The fifth figure is a schematic view of the clamp of the auxiliary welding fixture of the present invention which opens the flexible clip and prepares to clamp the metal piece.

The sixth figure is a schematic view of the clamp of the auxiliary welding fixture of the present invention, which is separated from the clip after the flexible clip clamps the metal piece.

The seventh figure is a schematic diagram of the combination of the clamp of the auxiliary welding fixture of the present invention and another flexible clip embodiment.

10‧‧‧ clamp

11, 13‧‧‧ Picture

111‧‧‧Fixed hook

15‧‧‧ pivot assembly

17, 19‧‧‧ Grip

18‧‧‧ Spring

20‧‧‧Flexible clips

21‧‧‧U-shaped

23‧‧‧ Arms

233‧‧‧Free end

Claims (9)

An auxiliary welding fixture comprising: a clamp having a pair of cymbals and a grip portion, each of the cymbals being provided with a fixing hook relative to one of the other cymbals, wherein the grip portion is not gripped Immediately when the jaws are relatively clamped, and when the grip portion is gripped, the jaws are relatively open; and at least one flexible clip having two arms connected by a U-shaped portion Each of the arm portions is provided with a fixing groove for fastening the corresponding fixing hook, and each of the arm portions normally contacts the free end of the other arm portion with a free end, and the free end of the flexible clip is oriented toward the other end. The free end of the one arm is bent; according to the method, the flexible clip is placed between the clamping jaws to ensure that the fixing hook of the clamping jaw is fastened to the flexible clip The fixing groove of the buckle arm portion is such that when the grip portion of the clamp is not gripped, the jaws are relatively clamped, and the free ends of the two arms of the flexible clip are in contact with each other, and when When the grip portion of the clamp is gripped, the jaws are relatively open, and the free ends of the arms of the flexible clip are separated from each other. The auxiliary welding jig according to claim 1, wherein the flexible clip is made of a metal material. The auxiliary welding jig according to claim 1, wherein the free end of the two ends of the flexible clip has a maximum separation distance of 5 mm. The auxiliary welding jig according to claim 1, wherein the free end of each of the arms is normally overlapped with the free end of the other arm. The auxiliary welding jig according to claim 1, wherein the grip portion of the clamp is composed of two grips that are connected by a pivot assembly, and a spring is disposed between the two grips. two The grips are normally detached from each other to cause the cymbals to be relatively clamped. The auxiliary welding jig of claim 5, wherein the fixing hook is bent toward a direction opposite to the pivot assembly. A clamp applied to an auxiliary welding fixture according to claim 1, wherein the clamp mainly comprises: a pair of cymbals and a grip portion, each of the cymbals being opposite to the other one of the cymbals A fixing hook is provided, wherein when the grip portion is not gripped, the jaws are relatively clamped, and when the grip portion is gripped, the jaws are relatively open. A flexible clip for use in an auxiliary welding jig as described in claim 1, wherein the flexible clip system mainly comprises: a U-shaped portion, two arms connected via the U-shaped portion, Each of the arm portions is provided with a fixing groove, and each of the arm portions normally contacts a free end of the other arm portion with a free end, and the free end portion is bent toward the free end of the other arm portion. An auxiliary welding fixture comprising: a clamp having a pair of cymbals and a grip portion, each of the cymbals being provided with a fixing hook relative to one of the other cymbals, wherein the grip portion is not gripped Immediately when the jaws are relatively clamped, and when the grip portion is gripped, the jaws are relatively open; and at least one flexible clip having two arms connected by a U-shaped portion Each arm portion is provided with a fixing groove for fastening the corresponding fixing hook, and each of the arm portions normally contacts the free end of the other arm portion with a free end, and the free end of each arm portion is normal with another The free ends of the arms are partially overlapped; accordingly, the flexible clips are placed between the jaws of the clamps, so that the fixed hooks of the jaws are fastened to the flexible clips The fixing groove of the arm is such that when the grip portion of the clamp is not gripped, the cymbals are relatively clamped, and the two arms of the flexible clip are freely end This contact, and when the grip portion of the clamp is gripped, the flap is relatively open, and the free ends of the arms of the flexible clip are separated from each other.