CN216227729U - Positioning device for assembly welding of parts - Google Patents

Abstract

The utility model discloses a positioning device for assembling and welding parts, which comprises: base, swing arm supporting seat, swing arm, connecting rod, location axle and location axle support. The swing arm supporting seat is fixed on the base, the swing arm is of an L-shaped structure formed by connecting a cross rod and a longitudinal rod, and the right end of the cross rod is rotatably connected with the base; two ends of the connecting rod are respectively and rotatably connected with the left end of the cross rod and the right end of the positioning shaft; the positioning shaft support is fixed on the base, a through hole horizontally arranged is formed in the positioning shaft support, the positioning shaft is located in the through hole and in clearance fit with the through hole, the left end of the positioning shaft extends outside the through hole, and the transverse rod, the connecting rod and the positioning shaft are on the same axis when the transverse rod is in a horizontal state. The positioning device provided by the utility model has the advantages that the reciprocating motion of the positioning shaft is realized by utilizing the swing arm, the rapid insertion and withdrawal of the positioning shaft in the positioning hole of the part are realized, and the efficiency of positioning and dismounting the part from the part is effectively improved.

Description

Positioning device for assembly welding of parts

Technical Field

The utility model relates to the field of part positioning devices, in particular to a positioning device for assembling and welding parts.

Background

The information disclosed in this background of the utility model is only for enhancement of understanding of the general background of the utility model and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

The loader has the advantages of high operation speed, good maneuverability, light operation and the like, so the loader is developed quickly and becomes a main machine in the construction of earthwork. In the production and manufacturing process of the loader, parts need to be spliced and combined together and then welded to form a complete part, and in the process, a positioning device is needed to assist to prevent the parts from moving in the welding process so as to ensure the connection precision of the parts. At present, a commonly-used positioning device (refer to an attached figure 1 in the specification) achieves the purpose by adopting a mode that a long positioning shaft A integrally penetrates through a zero component B and then is fixed and clamped by a bolt, the clamping process is complicated, the bolt is screwed by a spanner, the operation is inconvenient, the efficiency is low, the positioning shaft can only be integrally replaced after being worn and failed, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a positioning device for component assembly welding, which can realize rapid perforation and exit, is simple and convenient to operate without wrench operation, and effectively improves the efficiency of positioning and dismounting components. In order to achieve the above object, the technical solution of the present invention is as follows.

A positioning device for assembling and welding parts comprises: base, swing arm supporting seat, swing arm, connecting rod, location axle and location axle support. Wherein: the swing arm supporting seat is fixed on the base, the swing arm is of an L-shaped structure formed by connecting a cross rod and a longitudinal rod, and the right end of the cross rod is rotatably connected with the base. And two ends of the connecting rod are respectively and rotatably connected with the left end of the cross rod and the right end of the positioning shaft. The positioning shaft support is fixed on the base, a through hole horizontally arranged is formed in the positioning shaft support, the positioning shaft is located in the through hole and in clearance fit with the through hole, the left end of the positioning shaft extends outside the through hole, and when the cross rod is in a horizontal state, the cross rod, the connecting rod and the positioning shaft are located on the same axis so as to be conveniently inserted into a positioning hole of a part for positioning.

Furthermore, a supporting block is arranged below the swing arm, and the lower surface of the cross rod is just supported on the upper surface of the supporting block when the cross rod is in a horizontal state.

Furthermore, a shaft sleeve is detachably connected in the through hole of the positioning shaft support, and the positioning shaft is located in the shaft sleeve and in clearance fit with the shaft sleeve.

Furthermore, the positioning shaft further comprises an extension shaft which is detachably connected to the left end face of the positioning shaft, and the extension shaft and the positioning shaft are on the same axis.

Furthermore, a screw hole is formed in the left end face of the positioning shaft, a threaded rod is fixed to one end face of the lengthened shaft, and the threaded rod is connected to the screw hole in a threaded mode so that the lengthened shaft can be detachably connected to the positioning shaft.

Furthermore, the welding fixture further comprises a guide rail, wherein two sets of positioning devices for component assembly welding are oppositely arranged on the guide rail, and a base of each positioning device is connected to the guide rail in a sliding mode so as to be positioned from two sides of each component at the same time.

Furthermore, the base is detachably fixed on the guide rail through a positioning piece, so that the positioning device is fixed on the guide rail after the position of the positioning device on the guide rail is adjusted.

Further, the longitudinal rod is of a bent structure, so that the longitudinal rod can be better held.

Furthermore, the cross rod is rotatably connected with the base through a pin shaft, and the connecting rod is rotatably connected with the left end of the cross rod and the positioning shaft through a pin shaft.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the positioning device provided by the utility model has the advantages that the reciprocating motion of the positioning shaft is realized by utilizing the swing arm, the rapid insertion and withdrawal of the positioning shaft in the positioning hole of the part are realized, the operation is simple and convenient, the operation of a wrench is not needed, and the efficiency of positioning the part and detaching the part from the part is effectively improved.

(2) The positioning device does not need to adopt a mode that a long positioning shaft integrally penetrates through a zero component and then is fixed by a bolt to clamp and fix the components like the traditional positioning device, so that the replacement cost is lower after the positioning shaft is damaged, the abrasion of the positioning shaft on a positioning shaft support can be avoided by additionally arranging the shaft sleeve, the replacement is inconvenient, the abraded positioning shaft and the shaft sleeve are more convenient to replace, and the replacement cost is lower.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

Fig. 1 is a front view of a positioning device for connecting components according to the background of the present invention.

Fig. 2 is a front view of a positioning device for connecting parts according to an embodiment of the present invention.

FIG. 3 is a side view of another positioning shaft in accordance with an embodiment of the present invention.

FIG. 4 is a front view of another elongated shaft in an embodiment of the present invention.

FIG. 5 is a front view of another exemplary embodiment of a positioning device for connecting components.

The labels in the figures represent: 1-base, 2-swing arm supporting base, 3-swing arm, 3.1-cross bar, 3.2-longitudinal bar, 4-connecting bar, 5-positioning shaft, 5.1-screw hole, 6-positioning shaft supporting base, 7-supporting block, 8-shaft sleeve, 9-extension shaft, 9.1-threaded rod, 10-guide rail, 11-positioning piece, A-length positioning shaft and B-part.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate that the directions of movement are consistent with those of the drawings, and do not limit the structure, but merely facilitate the description of the utility model and simplify the description, rather than indicate or imply that the referenced device or element needs to have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. The description will be further described with reference to the drawings and specific examples.

Referring to fig. 2, a positioning device for component assembly welding is illustrated, including: base 1, swing arm supporting seat 2, swing arm 3, connecting rod 4, location axle 5 and location axle support 6, wherein:

the swing arm supporting seat 2 is fixed on the base 1, and a pin hole is formed in the upper portion of the swing arm supporting seat 2 so as to be connected with the swing arm 3 in a rotating mode. The swing arm 3 is of an L-shaped structure formed by connecting a cross rod 3.1 and a longitudinal rod 3.2, wherein the right end of the cross rod 3.1 is rotatably connected with a pin hole on the base 1 by a pin shaft, so that the swing arm 3 can rotate around the pin hole on the base 1; the longitudinal bar 3.2 is of a curved structure to facilitate better handling.

The right end of the connecting rod 4 is rotatably connected with the left end of the cross rod 3.1 through a pin shaft, and the left end of the connecting rod 4 is rotatably connected with the right end of the positioning shaft 5 through a pin shaft. The positioning shaft support 6 is fixed on the base 1 and located on the left side of the connecting rod 4, a through hole horizontally arranged is formed in the upper portion of the positioning shaft support 6, the positioning shaft 5 is located in the through hole and in clearance fit with the through hole, and the left end of the positioning shaft 5 extends outside the through hole. When the positioning device is used, the longitudinal rod 3.2 is pushed leftwards, the connecting rod 4 and the positioning shaft 5 are further pushed to move leftwards, the positioning shaft 5 enters a positioning hole of a part to be positioned, the transverse rod 3.1 is in a horizontal state at the moment, the transverse rod 3.1, the connecting rod 4 and the positioning shaft 5 are on the same axis, namely the swing arm 3 is in a dead point state, and the part is in a locked and positioned state. When the parts need to be taken down after assembly welding, the longitudinal rod 3.2 is pushed in the opposite direction, the dead point state of the swing arm 3 is relieved, and the connecting rod 4 and the positioning shaft 5 move rightwards and are separated from the positioning holes of the parts. The positioning device utilizes the swing arm 3 to realize the reciprocating motion of the positioning shaft 5, realizes the quick insertion and withdrawal of the positioning shaft in the positioning hole of the part, is simple and convenient to operate without the operation of a wrench, and effectively improves the efficiency of positioning the part and disassembling the part from the part.

Referring to fig. 2, in another preferred embodiment, a support block 7 is further disposed below the swing arm 3 in the above embodiment, and the lower surface of the cross bar 3.1 is just supported on the upper surface of the support block 7 when the cross bar 3.1 is in a horizontal state, so as to prevent the positioning shaft 5 from being withdrawn again and losing the positioning effect when the swing arm 3 is pushed to move by the longitudinal bar 3.2 and the positioning shaft 5 is stopped from moving downwards excessively by the support block 7.

Referring to fig. 3, in another preferred embodiment, a shaft sleeve 8 is detachably connected to the through hole of the positioning shaft support 6 in the above embodiment, and the positioning shaft 5 is located in the shaft sleeve 8 and is in clearance fit with the shaft sleeve 8. The shaft sleeve 8 can avoid the abrasion of the positioning shaft 5 to the positioning shaft support 6, the replacement is inconvenient, the worn positioning shaft 5 and the shaft sleeve 8 are more convenient to replace, and the replacement cost is lower.

Referring to fig. 3 and 4, in another preferred embodiment, the positioning device for component assembly welding shown in fig. 1 further includes an elongated shaft 9, a screw hole 5.1 is formed in a left end surface of the positioning shaft 5, a threaded rod 9.1 is fixed to one end surface of the elongated shaft 9, and the threaded rod 9.1 is screwed into the screw hole 5.1, so that the elongated shaft 9 is detachably connected to the positioning shaft 5 and is on the same axis. The length of the positioning shaft 5 can be conveniently changed through the lengthened shaft 9, and the positioning of parts with different specifications is facilitated.

Referring to fig. 5, in another preferred embodiment, the positioning device for component assembly welding shown in fig. 1 further includes a guide rail 10, two sets of the positioning devices for component assembly welding are oppositely arranged on the guide rail 10, and a base 1 of the positioning device is slidably connected to the guide rail 10 so as to be positioned from two sides of the component at the same time. The base 1 can be detachably fixed on the guide rail 10 by using bolts as positioning pieces 11, so that the positioning device can be fixed on the guide rail after the position of the positioning device on the guide rail 10 is adjusted.

Finally, it should be understood that 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. Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims (9)

1. A positioner is used in spare part assembly welding, its characterized in that includes: the device comprises a base, a swing arm supporting seat, a swing arm, a connecting rod, a positioning shaft and a positioning shaft supporting seat; wherein: the swing arm supporting seat is fixed on the base, the swing arm is of an L-shaped structure formed by connecting a cross rod and a longitudinal rod, and the right end of the cross rod is rotatably connected with the base; two ends of the connecting rod are respectively and rotatably connected with the left end of the cross rod and the right end of the positioning shaft; the positioning shaft support is fixed on the base, a through hole horizontally arranged is formed in the positioning shaft support, the positioning shaft is located in the through hole and in clearance fit with the through hole, the left end of the positioning shaft extends outside the through hole, and when the cross rod is in a horizontal state, the cross rod, the connecting rod and the positioning shaft are on the same axis.

2. The positioning device for component assembly welding according to claim 1, wherein a support block is further disposed below the swing arm, and a lower surface of the cross bar is just supported on an upper surface of the support block when the cross bar is in a horizontal state.

3. The positioning device for component assembly welding according to claim 1, wherein a bushing is detachably connected to the through hole of the positioning shaft support, and the positioning shaft is located in the bushing and in clearance fit with the bushing.

4. The positioning device for component assembly welding according to claim 1, further comprising an extension shaft detachably attached to a left end surface of the positioning shaft, and both of the extension shaft and the positioning shaft are on the same axis.

5. The positioning device for component assembly welding according to claim 4, wherein a screw hole is formed in a left end surface of the positioning shaft, a threaded rod is fixed to one end surface of the elongated shaft, and the threaded rod is screwed into the screw hole so that the elongated shaft is detachably connected to the positioning shaft.

6. The positioning device for component assembly welding according to claim 1, wherein the longitudinal rod has a curved structure.

7. The positioning device for component assembly welding according to claim 1, wherein the cross bar is rotatably connected to the base through a pin shaft, and the connecting rod is rotatably connected to the left end of the cross bar and the positioning shaft through a pin shaft.

8. The component assembling and welding positioning device according to any one of claims 1 to 7, further comprising a guide rail, wherein two sets of the component assembling and welding positioning devices are oppositely arranged on the guide rail, and a base of the positioning device is slidably connected to the guide rail.

9. The positioning device for component assembly welding according to claim 8, wherein the base is detachably fixed to the guide rail by a positioning member, so that the positioning device is fixed to the guide rail after the position of the positioning device on the guide rail is adjusted.

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