CN218946739U - Axle and bonding tooth welding jig - Google Patents

Abstract

The utility model provides a welding fixture for a shaft and a combination tooth, and belongs to the field of welding fixtures for shafts and combination teeth. The problem that the gear precision after the welding of the combined teeth cannot be guaranteed by the existing processing mode is solved. The clamp comprises a clamp body, a connecting plate, a pressing plate and a shaft with pressed binding teeth, wherein the clamp body is arranged on the connecting plate, the top end of the pressing plate is arranged on the upper end face of the clamp body, a pressing plate supporting block is arranged between the tail end of the pressing plate and the connecting plate, the shaft is arranged in an inner cavity of the clamp body, and an annular pressing plate is arranged on the upper end face of the shaft. It is mainly used for welding the shaft and the combination teeth.

Description

Axle and bonding tooth welding jig

Technical Field

The utility model belongs to the technical field of part machining, and particularly relates to a welding fixture for a shaft and a combined tooth.

Background

In the shaft tooth part processing process, the combined tooth is usually required to be welded on a part, most parts are disc-type gear parts, and in the existing shaft and combined tooth welding field, no mature welding processing mode exists, and no special fixture is used for guaranteeing the gear precision after the combined tooth is welded.

The utility model patent of China with the prior publication number of CN211614644U discloses a gear welding fixture and a gear welding system, which belong to the technical field of gear processing equipment and comprise a supporting structure for supporting gears; the first compressing structure is detachably connected with the supporting structure and can compress the gear on the supporting structure; the second compresses tightly the structure, detachably connects in bearing structure, can compress tightly the bonding tooth on the protruding structure of gear with the cover and locate in the gear, has seted up the centre bore on the second compresses tightly the structure, and the diameter of centre bore is greater than the internal diameter of bonding tooth and is less than the external diameter of bonding tooth. According to the gear welding fixture provided by the utility model, the gear is pressed on the supporting structure through the first pressing structure, the bonding teeth are pressed on the gear through the second pressing structure, and the diameter of the central hole is larger than the inner diameter of the bonding teeth and smaller than the outer diameter of the bonding teeth, so that the relative positions of the gear and the bonding teeth are fixed while the welding of the bonding teeth and the gear is not influenced, the welding deformation is avoided, and the welding precision and the welding efficiency are improved. The structural shape difference of the gear shaft part and the disc part is larger, the shaft cannot use the tool, and the similar tool cannot meet the precision of the welding requirement of the shaft.

The utility model discloses a multi-dimension location detection device of gear shaft production usefulness is disclosed to current chinese utility model patent of bulletin number CN212512785U, including testing platform, testing platform's top has seted up the detection chamber, the regulation chamber has been seted up to one side of detection chamber, be equipped with the locating plate in the regulation chamber, the lateral wall welding of locating plate has the locking round pin, testing platform's one end is fixed with first curb plate, testing platform's the other end is fixed with the second curb plate. This many sizes of gear shaft production usefulness location detection device, through putting into the detection intracavity with the gear shaft, make the left end and the first side board contact of its gear shaft, the right-hand member and the locking plate contact of gear shaft, and make its locking plate clamp the gear shaft through rotatory lead screw, and cooperate the promotion locking round pin to make its drive locating plate be close to outer ring gear, reach the effect of carrying out meshing locking to one side of the outer ring gear of different diameters, thereby be convenient for to different length, and the fixed effect of gear shaft locking of the outer ring gear of different diameters, the location effect of many sizes gear shaft has been improved, but the device does not mention the welding process to bonding tooth and axle.

Disclosure of Invention

In view of the above, the present utility model aims to provide a welding fixture for a shaft and a bonding tooth, so as to solve the problem that the existing machining method cannot ensure the accuracy of the gear after the bonding tooth is welded.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a axle and bonding tooth welding jig, includes anchor clamps main part, connecting plate, clamp plate and the axle of pressure equipment bonding tooth, the anchor clamps main part is installed on the connecting plate, the top of clamp plate sets up the up end at the anchor clamps main part, install the clamp plate supporting shoe between the tail end of clamp plate and the connecting plate, the axle is installed in the inner chamber of anchor clamps main part, annular clamp plate is installed to the up end of axle.

Furthermore, the pressing plate support blocks are provided with a plurality of pressing plates uniformly distributed on the upper end face of the clamp main body.

Furthermore, a plurality of second bolts are uniformly distributed on the annular pressing plate.

Furthermore, a first bolt is arranged in the middle of the pressing plate and is in threaded connection with the connecting plate.

Further, the boss cylindricity form and position tolerance of the clamp main body is smaller than 0.02mm.

Further, the perpendicularity tolerance of the end face of the clamp main body relative to the boss axis is smaller than 0.02mm.

Further, the perpendicularity of the left end face of the clamp main body with respect to the boss axis is smaller than 0.02mm.

Still further, the coaxiality tolerance of the inner cavity with respect to the boss axis is less than 0.02mm.

Furthermore, the first matching part of the clamp main body and the shaft adopts the precision matching of the IT8 level made of the base shaft, and the second matching part of the clamp main body and the connecting plate adopts the precision matching of the IT8 level made of the base hole.

Further, the shaft is a gear shaft.

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

1. according to the utility model, under the requirement of ensuring the gear precision of the welded combined teeth, the matching requirement between the clamp main body and the part and the matching requirement between the clamp main body and the connecting plate are designed, and the shape and position requirement of the clamp are designed, so that the positioning precision of each part clamping is ensured by directly replacing the part under the state of not disassembling the clamp main body, and the gear precision of the welded combined teeth of the part is further satisfied;

2. the tooling designed for the welding combination teeth of the shaft parts solves the problem of positioning and clamping the shaft parts on a turntable of laser welding, and further effectively improves the efficiency of the laser welding parts;

3. the shaft parts with similar structures can be fixed and positioned by pressing the clamp main body and the combining teeth, and further, the structures of different shaft parts can be matched and positioned correspondingly only by changing the structures of the inner cavities of the clamp main body.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a shaft and bond tooth welding fixture according to the present utility model;

FIG. 2 is a cross-sectional view of a shaft and bond tooth welding jig according to the present utility model;

FIG. 3 is an exploded view of a shaft and bond tooth welding jig according to the present utility model;

fig. 4 is a cross-sectional view of a clamp body according to the present utility model.

The fixture comprises a fixture body 1, a connecting plate 2, a first bolt 3, a pressing plate supporting block 4, a pressing plate 5, a second bolt 6, an annular pressing plate 7, a shaft 8, a matching part I of the fixture body 10 and the shaft 11, a matching part II of the fixture body and the connecting plate 12, a boss 13, an end face 14, a left end face and a cavity 15.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It should be noted that, in the case of no conflict, embodiments of the present utility model and features of the embodiments may be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

Referring to fig. 1-4, the embodiment is described as a shaft and bonding tooth welding fixture, which comprises a fixture main body 1, a connecting plate 2, a pressing plate 5 and a shaft 8 with bonding teeth pressed, wherein the fixture main body 1 is installed on the connecting plate 2, the top end of the pressing plate 5 is arranged on the upper end face of the fixture main body 1, a pressing plate supporting block 4 is installed between the tail end of the pressing plate 5 and the connecting plate 2, the shaft 8 is installed in an inner cavity 15 of the fixture main body 1, an annular pressing plate 7 is installed on the upper end face of the shaft 8, the shaft 8 is a gear shaft, the cylindricity tolerance of a boss 12 of the fixture main body 1 is smaller than 0.02mm, the verticality tolerance of an end face 13 of the fixture main body 1 relative to the axis of the boss 12 is smaller than 0.02mm, the verticality of a left end face 14 of the fixture main body 1 relative to the axis of the boss 12 is smaller than 0.02mm, and the coaxiality tolerance of the inner cavity 15 relative to the axis of the boss 12 is smaller than 0.02mm.

In this embodiment, taking the gear shaft as an example, before welding, the boss 12 of the clamp body 1 is placed in the hole in the connecting plate 2, then the clamp body 1 is pressed and fixed by the pressing plate 5, then the clamp body 1 is pressed and cannot rotate on the connecting plate 2, after the clamp body 1 is fixed, the shaft 8 with the pressed combined teeth is placed in the inner cavity 15 of the clamp body 1, the lower end face of the shaft 8 is attached to the upper end face of the clamp body 1, after the shaft 8 is placed, the shaft 8 is pressed and fixed by the annular pressing plate 7, after the shaft 8 is fixed, the shaft 8 is welded, and parts are replaced by repeatedly disassembling the annular pressing plate 7 after the welding.

The shafts 8 in the working principle are gear shafts.

The cylindricity form tolerance of the boss 12 of the clamp body 1 is smaller than 0.02mm, the perpendicularity tolerance of the end face 13 of the clamp body 1 relative to the axis of the boss 12 is smaller than 0.02mm, the perpendicularity of the left end face 14 of the clamp body 1 relative to the axis of the boss 12 is smaller than 0.02mm, the coaxiality tolerance of the inner cavity 15 relative to the axis of the boss 12 is smaller than 0.02mm, the matching requirements between the clamp body 1 and the part and between the clamp body 1 and the connecting plate 2 are according to the design, the form and position requirements of the clamp are designed, and further the positioning precision of clamping of each part is guaranteed by directly replacing the part under the condition that the clamp body 1 is not dismounted, and then the gear precision of the combined teeth after part welding is met.

Wherein, the pressing plate supporting block 4 plays a role in supporting the tail part of the pressing plate 5.

The middle part of clamp plate 5 is equipped with first bolt 3, first bolt 3 and connecting plate 2 threaded connection, the equipartition has a plurality of second bolts 6 on the annular clamp plate 7, places behind the boss 12 of anchor clamps main part 1 in the hole in connecting plate 2, fixes clamp plate 5 through first bolt 3, accomplishes the fixation that compresses tightly to anchor clamps main part 1, after the axle 8 that the pressure equipment was good to combine the tooth is put into the inner chamber 15 of anchor clamps main part 1, makes annular clamp plate 7 compress tightly axle 8 through second bolt 6.

Wherein, in order to ensure the positioning precision of the shaft 8, the first matching part 10 of the clamp body 1 and the shaft 8 adopts the precision matching of the IT8 level of the base shaft, in order to ensure the positioning precision of the clamp body 1 and the connecting plate 2, the second matching part 11 of the clamp body 1 and the connecting plate 2 adopts the precision matching of the IT8 level of the base hole,

the embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The examples are not intended to be exhaustive or to limit the utility model to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model.

Claims (10)

1. A welding jig for a shaft and a combination tooth is characterized in that: including anchor clamps main part (1), connecting plate (2), clamp plate (5) and pressure equipment well combine axle (8) of tooth, anchor clamps main part (1) are installed on connecting plate (2), the top of clamp plate (5) sets up the up end at anchor clamps main part (1), install clamp plate supporting shoe (4) between the tail end of clamp plate (5) and connecting plate (2), axle (8) are installed in inner chamber (15) of anchor clamps main part (1), annular clamp plate (7) are installed to the up end of axle (8).

2. A shaft and bond tooth welding jig as defined in claim 1, wherein: the clamp comprises a clamp body (1), a plurality of clamp plate supporting blocks (4) are arranged, and a plurality of clamp plates (5) are uniformly distributed on the upper end face of the clamp body.

3. A shaft and bond tooth welding jig as defined in claim 2, wherein: the middle part of clamp plate (5) is equipped with first bolt (3), first bolt (3) and connecting plate (2) threaded connection.

4. A shaft and bond tooth welding jig as defined in claim 1, wherein: a plurality of second bolts (6) are uniformly distributed on the annular pressing plate (7).

5. A shaft and bond tooth welding jig as defined in claim 1, wherein: the cylindricity form and position tolerance of the boss (12) of the clamp main body (1) is smaller than 0.02mm.

6. A shaft and bond tooth welding jig as defined in claim 5, wherein: the perpendicularity tolerance of the end face (13) of the clamp main body (1) relative to the axis of the boss (12) is smaller than 0.02mm.

7. A shaft and bond tooth welding jig as defined in claim 5, wherein: the perpendicularity of the left end face (14) of the clamp main body (1) relative to the axis of the boss (12) is smaller than 0.02mm.

8. A shaft and bond tooth welding jig as defined in claim 5, wherein: the coaxiality tolerance of the inner cavity (15) relative to the axis of the boss (12) is smaller than 0.02mm.

9. A shaft and bond tooth welding jig as defined in claim 1, wherein: the clamp body (1) and the first (10) of the matching part of the shaft (8) are matched with each other by adopting the precision of the IT8 level of the base shaft, and the second (11) of the matching part of the clamp body (1) and the connecting plate (2) are matched with each other by adopting the precision of the IT8 level of the base hole.

10. A shaft and bond tooth welding jig as defined in claim 1, wherein: the shaft (8) is a gear shaft.

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