CN219561991U - Compression welding tool - Google Patents

Abstract

The utility model relates to the technical field of gear welding, in particular to a compression welding tool, which comprises a shaft core and a base, and is characterized in that: the clamping mechanisms are fixedly connected to the side face of the base; the clamping mechanism comprises a bearing table, a clamping arm and a driving arm for driving the clamping arm to swing; one end of the clamping arm is hinged on the bearing table, and the driving arm is connected to a position close to the hinge point; the arm lock is kept away from actuating arm one end and is equipped with the embossing perpendicularly. The rotary driving arm can move the clamping arm so as to clamp the gear ring tightly. The scheme is used for solving the problems that in the prior art, the time for replacing the machined gear by the compression welding tool is long, and the welding machining efficiency is affected.

Description

Compression welding tool

Technical Field

The utility model relates to the technical field of gear welding, in particular to a compression welding tool.

Background

As shown in fig. 1, when the gear ring is assembled with the gear, the thin-wall gear is generally sleeved on the gear, and after the assembly is sleeved, the teeth of the gear are positioned below the gear ring; and then welding the joint of the gear ring and the top of the gear, if the gear ring is directly welded, the gear ring is easy to be heated to generate obvious deformation in the welding process because the gear ring is a thin-wall piece, so that the positions of the gear and the gear ring are deviated, the welding precision is reduced, the performance of the assembly is attenuated, the qualification rate is reduced, and the cost production is increased. Therefore, at present, a compaction tool is generally adopted to fix the gear ring and the gear, and then welding is carried out.

For example, chinese patent CN204221207U discloses a welding positioning device comprising a welding support base, a positioning plate and a pressing block. When the welding fixture is used, the gear ring is sleeved on the gear, the gear is sleeved on the welding support seat, the gear ring is positioned and fixed by the positioning plate, and then the positioning plate is pressed by at least two pressing blocks, so that positioning before welding is realized. However, the prior art has the following problems:

1. a plurality of compaction blocks are adopted to be respectively buckled on the circumference of the gear ring, so that the time consumption for installing and replacing parts is long, and the machining efficiency is affected;

2. because the welding support column shaft core is fixed on the welding support seat, the welding support column shaft core cannot be replaced, and the welding support column shaft core cannot be suitable for processing products with different specifications.

Disclosure of Invention

The utility model aims to provide a compression welding tool, which solves the problems that in the prior art, the time for replacing a machined part of the compression welding tool is long, and the welding machining efficiency is affected.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a compress tightly welding frock, includes axle core and base, its characterized in that: the clamping mechanisms are fixedly connected to the side face of the base; the clamping mechanism comprises a bearing table, a clamping arm and a driving arm for driving the clamping arm to swing; one end of the clamping arm is hinged on the bearing table, and the driving arm is connected to a position close to the hinge point; the arm lock is kept away from actuating arm one end and is equipped with the embossing perpendicularly.

Further, the clamping mechanism further comprises two supporting tables which are symmetrically arranged, the supporting tables are fixedly connected to the bearing table, and connecting sliding rods are transversely arranged in the two supporting tables.

In this scheme, the brace table is used for supporting the arm lock and provides the fulcrum for the arm lock.

Further, one end of the clamping arm is provided with a threaded hole, and the clamping arm is in threaded connection with the driving arm; the driving arm is of a two-section structure, the lower section is a vertical screw with threads on the surface, and the upper section is an inclined grip; the end of the clamping arm close to the threaded hole is provided with a sliding groove, and the clamping arm is in sliding connection with the connecting sliding rod.

In this scheme, the arm lock that is equipped with the spout can follow and connect the slide bar vertical direction and slide, and when the arm lock was slided to spout spacing position, the embossing just is located the ring gear upper portion this moment. The inclined handle rotates to enable the vertical screw rod to move, and the embossing moves reversely with the vertical screw rod under the action of the lever principle.

Further, the driving arm comprises a first connecting arm, a second connecting arm and a swing arm of a connecting rod structure; one end of the clamping arm is fixedly connected with one end of the first connecting arm, the other end of the first connecting arm points downwards to the base and is hinged with one end of the second connecting arm, the other end of the second connecting arm points downwards to the base and is fixedly connected with one end of the swing arm, and the other end of the swing arm points outwards of the base; the clamping arm and the second connecting arm are both hinged on the bearing table.

In this scheme, swing arm and second linking arm hinge on the bearing platform, provide the atress fulcrum for the connecting rod. The arm lock, first linking arm, second linking arm and swing link to each other first in proper order, can form effectual connecting rod structure, provide the grip ability.

Further, three sections of step through holes are vertically formed in the center of the base, and the three sections of step through holes are small-diameter holes, medium-diameter holes and large-diameter holes in sequence from bottom to top.

In this scheme, the minor diameter hole is arranged in the three-section step through-hole and is used for installing the axle core, and the well footpath hole is used for placing the tooth portion of gear, and the major diameter hole is arranged in to the wheel portion and the ring gear of gear.

Further, the shaft core is a two-section step shaft core, the lower part is a large-diameter shaft, the upper part is a small-diameter shaft, and the small-diameter shaft can penetrate through a small-diameter hole of the base to extend into the base.

In this scheme, the path axle passes the base path hole and stretches into in the base for fixed gear. The shaft core and the base are inserted and assembled, and when the shaft core is worn, the shaft core is only required to be replaced, so that the use cost is reduced.

Further, the compression welding tool comprises a gear ring cover plate, wherein the gear ring cover plate covers the gear ring, and the gear ring cover plate is an annular thin plate.

In this scheme, the ring gear apron lid closes on the ring gear, prevents wearing and tearing ring gear when compressing tightly the operation.

The scheme has the advantages that: according to the utility model, the clamping mechanism is adopted, when the gear ring and the gear are replaced after being welded, the part replacement can be completed only by rotating and loosening or swinging and loosening the clamping mechanism, and the fasteners are not required to be installed up and down, so that the time and the labor are saved. Because the lever structure is adopted, the clamping mechanism is very labor-saving when being used for clamping or loosening. Meanwhile, the clamping mechanisms can be operated simultaneously, so that clamping or loosening of the clamping mechanisms can be finished by one person, and the working efficiency is greatly improved.

Drawings

FIG. 1 is a schematic illustration of a gear ring gear product configuration;

FIG. 2 is a plane view showing the working state of a compression welding tool according to embodiment 1 of the present utility model;

fig. 3 is a schematic structural diagram of a compression welding tool in embodiment 2 of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the device comprises a base 1, a small diameter hole 11, a middle diameter hole 12, a large diameter hole 13, a shaft core 2, a small diameter shaft 21, a large diameter shaft 22, a clamping mechanism 3, a bearing table 31, a clamping arm 32, a driving arm 33, a sliding chute 34, a connecting sliding rod 35, a supporting table 36, a first connecting arm 37, a second connecting arm 38, a swinging arm 39, a gear ring cover plate 4, a gear ring 5 and a gear 6.

Example 1

Basically as shown in fig. 1-2, a compression welding tool comprises a base 1, a shaft core 2 and a clamping mechanism 3, wherein the base 1 is a cylinder in the embodiment, a three-section stepped through hole is formed in the center of the base, and a small-diameter hole 11, a middle-diameter hole 12 and a large-diameter hole 13 are sequentially formed from bottom to top. The shaft core 2 is a two-section step shaft core 2, the lower part is a large-diameter shaft 22, and the upper part is a small-diameter shaft 21. The small diameter shaft 21 can penetrate through the small diameter hole 11 of the base 1 to extend into the base 1, and the large diameter shaft 22 is connected with the bottom of the base 1, so that the stability of the whole tool can be ensured during welding.

The side surface of the base 1 is fixedly connected with a clamping mechanism 3, and in the embodiment, two clamping mechanisms 3 are symmetrically arranged according to the central axis of the base 1. As shown in fig. 2, the clamping mechanism 3 includes a bearing table 31, and the bearing table 31 is tetragonal in the present utility model. The bearing table 31 is fixed on the side surface of the base 1, two symmetrical supporting tables 36 are fixedly arranged above the bearing table 31, and a connecting sliding rod 35 is fixedly arranged between the two supporting tables 36.

The clamping mechanism 3 further comprises a clamping arm 32 and a driving arm 33, wherein the free end of the clamping arm 32 is provided with a vertical downward embossing, and the other end of the clamping arm 32 is provided with a threaded hole connected with the driving arm 33. The driving arm 33 has a two-section structure, the lower section is a vertical screw, and the surface threads of the vertical screw are matched with the threaded holes; the upper section is an oblique grip.

The clamping arm 32 is provided with a chute 34 near one end of the driving arm 33, and a connecting slide bar 35 transversely passes through the chute 34 and can slide in the chute 34.

In the specific implementation, the small diameter shaft 21 of the shaft core 2 is inserted from the small diameter hole 11 of the base 1. The diagonal grip is rotated so that it drives one end of the clip arm 32 downward, and the free end of the clip arm 32 opens upward due to the leverage of the connecting slide bar 35 and the clip arm 32. The gear 6 to be welded is sleeved on the small-diameter shaft 21 of the shaft core 2. The gear ring 5 is sleeved on the gear 6 (as shown in fig. 1), the gear ring cover plate 4 is covered on the gear ring 5, and the gear ring cover plate 4 can effectively protect the gear ring 5, so that abrasion of the gear ring 5 in the compression process is reduced.

The clip arms 32 are slid to the ends of the runners 34 (shown in fig. 2) where the clip arms 32 are embossed just above the ring gear cover plate 4. The diagonal grip is rotated in the opposite direction and the free ends of the arms 32 move downwardly. The clamping arm 32 is moved in a protruding manner onto the ring gear cover plate 4, in which case the gear wheel 6 of the ring gear 5 can be clamped.

Example 2

The present embodiment differs from embodiment 1 in the structure of the holding mechanism 3. As shown in fig. 3, the clamping mechanism 3 in this embodiment includes a driving arm 33, a clamping arm 32, and a bearing table 31 of a link structure, and the bearing table 31 is fixed on the side surface of the base 1. The driving arm 33 comprises a first connecting arm 37, a second connecting arm 38 and a swinging arm 39, wherein the free end of the clamping arm 32 is vertically provided with a bulge for contacting with a product, and one end of the clamping arm 32 far away from the bulge is fixedly connected with one end of the first connecting arm 37. The other end of the first connecting arm 37 is hinged with one end of the second connecting arm 38, the other end of the second connecting arm 38 is fixedly connected with one end of the swing arm 39, and a certain included angle is formed so that when the swing arm 39 moves downwards, the other end of the second connecting arm 38 moves upwards. The clamping arm 32 and the second connecting arm 38 are both hinged on the bearing table 31, and the hinge point of the second connecting arm 38 is located at the fixed connecting end. Swing arm 39 can drive clamp arm 32 to move up and down.

The specific implementation process is as follows:

in the present embodiment, the small diameter shaft 21 of the shaft core 2 shown in fig. 2 is inserted from the small diameter hole 11 of the base 1, and the swing arm 39 is swung to open the clamp arm 32. The gear 6 to be welded is sleeved on the small-diameter shaft 21 of the shaft core 2. The gear ring 5 is sleeved on the gear 6, the gear ring cover plate 4 is covered on the gear ring 5, the gear ring 5 can be effectively protected by the gear ring cover plate 4, and abrasion of the gear ring 5 in the compression process is reduced. The swing arm 39 is swung downwards to enable the clamping arm 32 to act on the gear ring cover plate 4, the swing arm 39 is continued to swing vertically to form a clamping dead point, and at the moment, the clamping force is maximum, so that the gear ring 5 and the gear 6 can be firmly fixed.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (7)

1. The utility model provides a compress tightly welding frock, includes axle core and base, its characterized in that: the clamping mechanisms are fixedly connected to the side face of the base; the clamping mechanism comprises a bearing table, a clamping arm and a driving arm for driving the clamping arm to swing; one end of the clamping arm is hinged on the bearing table, and the driving arm is connected to a position close to the hinge point; the arm lock is kept away from actuating arm one end and is equipped with the embossing perpendicularly.

2. The compression welding tool of claim 1, wherein: the clamping mechanism further comprises two supporting tables which are symmetrically arranged, the supporting tables are fixedly connected to the bearing table, and connecting sliding rods are transversely arranged in the two supporting tables.

3. The compression welding tool of claim 2, wherein: one end of the clamping arm is provided with a threaded hole, and the clamping arm is in threaded connection with the driving arm; the driving arm is of a two-section structure, the lower section is a vertical screw with threads on the surface, and the upper section is an inclined grip; the end of the clamping arm close to the threaded hole is provided with a sliding groove, and the clamping arm is in sliding connection with the connecting sliding rod.

4. The compression welding tool of claim 1, wherein: the driving arm comprises a first connecting arm, a second connecting arm and a swing arm of a connecting rod structure; one end of the clamping arm is fixedly connected with one end of the first connecting arm, the other end of the first connecting arm points downwards to the base and is hinged with one end of the second connecting arm, the other end of the second connecting arm points downwards to the base and is fixedly connected with one end of the swing arm, and the other end of the swing arm points outwards of the base; the clamping arm and the second connecting arm are both hinged on the bearing table.

5. The compression welding tool of claim 1, wherein: the three-section stepped through hole is vertically formed in the center of the base, and the three-section stepped through hole is sequentially a small-diameter hole, a middle-diameter hole and a large-diameter hole from bottom to top.

6. The compression welding tool of claim 1, wherein: the shaft core is a two-section step shaft core, and the small-diameter shaft of the shaft core can penetrate through the small-diameter hole of the base to extend into the base.

7. The compression welding tool of claim 1, wherein: the gear ring cover plate is covered on the gear ring and is an annular thin plate.