CN221210494U

CN221210494U - Small-size loader scraper bowl shaping, rivet welding auxiliary fixtures

Info

Publication number: CN221210494U
Application number: CN202323161571.7U
Authority: CN
Inventors: 刘京娟; 秦立彬
Original assignee: Mengyin Hengya Machinery Co ltd
Current assignee: Mengyin Hengya Machinery Co ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-06-25
Anticipated expiration: 2033-11-22

Abstract

The utility model provides a forming and rivet welding auxiliary tool for a bucket of a small loader, which comprises a supporting bottom plate, a jacking mechanism, a package plate shaping die, a rear hinging seat positioning assembly and a package plate front bottom plate positioning mechanism, wherein the jacking mechanism is arranged at the upper left side of the supporting bottom plate and used for driving the package plate shaping die to reciprocate back and forth, the package plate shaping die is used for jacking a package plate, the rear hinging seat positioning assembly is arranged at the upper right side of the supporting bottom plate and used for positioning plates formed by hinging seats at the rear part of the package plate, the package plate front bottom plate positioning mechanism is arranged at the rear middle part of the supporting bottom plate and used for positioning the package plate front bottom plate on the supporting bottom plate. The tool is simple in structure and low in processing and manufacturing cost, and bending and shaping of the wrapping plate can be directly realized by using the tool for some small processing lengths, so that the processing cost of the bucket can be effectively reduced.

Description

Small-size loader scraper bowl shaping, rivet welding auxiliary fixtures

Technical Field

The utility model relates to the technical field of loader bucket machining, in particular to a small loader bucket forming and rivet welding auxiliary tool.

Background

The small-sized loader is widely applied to the fields of agriculture, gardens and the like because of small size and flexible movement. The structure of the bucket of the existing small loader is generally shown in fig. 5, and the bucket mainly comprises a wrapping plate 81, a wrapping plate front bottom plate 82, an upper edge plate 83 and side plates 84, wherein the wrapping plate front bottom plate 82 is arranged on the lower front side of the wrapping plate 81, the upper edge plate 83 is arranged on the upper portion of the wrapping plate 81, two side plates 84 are arranged on the left side and the right side of the wrapping plate 81, a middle hinging seat is arranged in the middle of the rear side of the wrapping plate 81 and is composed of two middle hinging seat plates 86 fixedly connected, a side hinging seat is respectively arranged on the left side and the right side of the middle hinging seat, and the side hinging seat is composed of two side hinging plates 85 fixedly connected.

At present, when bending and shaping the cladding plate 81, the bending and shaping processes are performed by using a steel plate bending machine, because the price of the existing steel plate bending machine is relatively high, a general small-sized processing factory cannot purchase due to the fund problem, and under the condition that the steel plate bending machine cannot be purchased, some small-sized processing factories can only bend and shape the cladding plate in an outsourcing processing mode, and the outsourcing processing cost of the cladding plate is relatively high, so that the processing cost of a production bucket of the small-sized processing factory is increased, and the cost of a small-sized loader is increased.

Disclosure of utility model

The utility model aims to provide a small-sized loader bucket forming and rivet welding auxiliary tool which is simple in structure and low in processing and manufacturing cost, and bending and shaping of a cladding plate can be directly realized by using the tool for some small-sized processing, so that the processing cost of the bucket can be effectively reduced.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a small-size loader scraper bowl shaping, rivet welding auxiliary fixtures, includes supporting baseplate, roof pressure mechanism, package board design mould, back articulated seat locating component, package board front plate locating mechanism, roof pressure mechanism sets up the left side upper portion of supporting baseplate, roof pressure mechanism is used for driving package board design mould carries out back and forth reciprocating motion, package board design mould is used for the roof pressure of package board panel, back articulated seat locating component sets up supporting baseplate right side upper portion, back articulated seat locating component is used for realizing the location of the constituteing panel of each articulated seat at package board rear portion, package board front plate locating mechanism sets up supporting baseplate middle part rear side, package board front plate locating mechanism is used for realizing the pressure of package board front plate on supporting baseplate to put the location.

Preferably, the jacking mechanism comprises a jacking bracket and a jacking oil cylinder, the jacking bracket is fixedly arranged on the supporting bottom plate, the fixed end of the jacking oil cylinder is hinged to the left side of the inside of the jacking bracket, the right end of the jacking oil cylinder is sleeved in a vertical hole formed in the jacking bracket, and the right end of the jacking oil cylinder can swing up and down in the vertical hole.

Further, the package board shaping mould includes fixed connection board, design mould, fixed connection board is fixed to be set up the telescopic link tip of roof pressure hydro-cylinder, three sets of mould equidistant fixed setting is in on the fixed connection board, every set of mould all includes two shaping boards, every set of two in the mould is moulded to the shaping board fixed connection.

Further, an upper edge plate auxiliary clamping device is arranged on the outer side of the shaping die head and located on the front side and the right side of the fixed connecting plate, the upper edge plate auxiliary clamping device comprises a clamping supporting plate, a first upper jacking bolt and a first lower jacking screw, the clamping supporting plate is fixedly arranged on the outer side of the corresponding shaping plate, and the first upper jacking bolt and the first lower jacking bolt are used for realizing upper and lower clamping and fixing of the upper edge plate.

Further, back articulated seat locating component includes supporting seat, spacing groove the fixed middle part of supporting seat sets up a middle part articulated seat panel location frock, middle part articulated seat panel location frock includes first distance pipe, first locating shaft runs through in the first distance pipe the left lower part of both sides is provided with two around the first distance pipe the spacing groove the articulated seat panel location frock of side sets up a side respectively in both sides around the articulated seat panel location frock of middle part, the articulated seat panel location frock of side includes second distance pipe, second locating shaft, the second locating shaft runs through in the second distance pipe the left lower part of both sides is provided with two around the second distance pipe the spacing groove.

Further, the locating mechanism of the front base plate of the wrapping plate comprises a locating column, a locating block and a pressing mechanism, wherein the two locating columns are fixedly arranged on the front side and the rear side of the middle of the supporting base plate, the two locating blocks are arranged on the left side of the middle of the supporting base plate side by side, the pressing mechanism is arranged at a position close to the locating block, the pressing mechanism comprises a supporting column and a rotating plate, the rotating plate is rotatably arranged on the upper portion of the supporting column, a second jacking bolt is arranged on the rotating plate, and the second jacking bolt is used for jacking the front base plate of the wrapping plate on the supporting base plate.

Further, a limiting assembly is arranged on the left side of each positioning column, each limiting assembly comprises a limiting clamping plate, one end of each limiting clamping plate is hinged to the supporting bottom plate, and the other end of each limiting clamping plate is used for propping up a side plate corresponding to the bucket against the front side or the rear side of the wrapping plate.

Further, the auxiliary tool further comprises a pull rod, and the pull rod is detachably connected to achieve connection of the upper right side portion of the top pressing support and the upper portion of the middle hinging seat plate positioning tool.

The beneficial effects of the utility model are as follows: the utility model has simple structure and convenient processing and manufacturing, and can be fully popularized and applied in small loader processing factories; the utility model realizes the processing and manufacturing cost of the cladding plate bending and forming, can reduce the processing and manufacturing cost of the bucket, and can reduce the production cost of the small loader; the arc curve of the right end edge of the shaping plate is matched with the curve of the wrapping plate after shaping, the arc curve of the left end edge of the middle hinging seat plate and the side hinging seat plate is matched with the curve of the wrapping plate after shaping, so that after the wrapping plate is propped against the middle hinging seat plate and the side hinging seat plate by the shaping plate, the shaping of the wrapping plate wrapping material is realized, and then the bending shaping of the wrapping plate is realized; in the process of bending and forming the wrapping plate, the assembly rivet welding work of the bucket can be continued, so that the processing efficiency of the bucket is improved. The jacking oil cylinder has higher jacking pressure, so that the bending forming quality of the wrapping plate can be ensured.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some preferred embodiments of the utility model and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a side view of the overall structure of the present utility model;

FIG. 3 is a partial structural top view of the present utility model;

FIG. 4 is an enlarged view of FIG. 1 at A;

FIG. 5 is a schematic diagram of the main structure of a conventional bucket;

In the figure: the device comprises a supporting bottom plate, a2 jacking mechanism, a 21 jacking bracket, a 211 vertical hole, a 212 first clamping groove, a 22 jacking oil cylinder, a 3-package plate shaping die, a 31 fixing connecting plate, a 32 shaping die, a 321 shaping plate, a 41 clamping supporting plate, a 42 first upper jacking bolt, a 421L-shaped supporting plate, a 43 first lower jacking screw, a 51 supporting seat, a 511 first positioning frame, a 512 first positioning pipe, a 513 first positioning shaft, a 514 second clamping groove, a 521 second positioning frame, a 522 second positioning pipe, a 523 second positioning shaft, a 53 limiting groove, a 61 positioning column, a 62 positioning block, a 63 limiting clamping plate, a 641 supporting column, 642 rotating plate, a 643 second jacking bolt, a 7 pull rod, a 81-package plate, a 82-package plate front bottom plate, an 83 upper edge plate, a 84 side plate, a 85 side hinging seat plate and a 86 middle hinging seat plate.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to specific embodiments and fig. 1 to 5, and it is obvious that the described embodiments are only some of the preferred embodiments of the present utility model, but not all embodiments. Similar modifications can be made by those skilled in the art without departing from the spirit of the utility model, and therefore the utility model is not to be limited by the specific embodiments disclosed below.

The utility model provides a forming and rivet welding auxiliary tool (shown in fig. 1) of a small loader bucket, which comprises a supporting bottom plate 1, a top pressing mechanism 2, a plate wrapping shaping die 3, a rear hinge seat positioning assembly and a plate wrapping front bottom plate positioning mechanism, wherein the supporting bottom plate 1 is used for stably supporting the whole device on the ground and is formed by processing steel materials, the top pressing mechanism 2 is arranged at the left upper part of the supporting bottom plate 11, the top pressing mechanism 2 is used for driving the plate wrapping shaping die 3 to reciprocate back and forth, the plate wrapping shaping die 3 is used for pressing the plate wrapping, namely, in the actual processing process of the bucket, the plate wrapping 81 is a plate wrapping by a steel plate with a fixed size, the plate wrapping shaping die 3 pushes the plate wrapping in the rightward moving process, the rear hinge seat positioning assembly is arranged at the right upper part of the supporting bottom plate 1, the rear hinge seat positioning assembly is used for realizing the positioning of the components of the plate wrapping 81, in the practical application, when the hinge seat components at the rear part of the plate wrapping 81 such as a middle part 86 and a plate wrapping seat 86 are arranged at the corresponding position, the plate wrapping plate 81 is fixed by the hinge seat 86, and the plate wrapping plate positioning mechanism is arranged at the right side of the corresponding position of the supporting bottom plate wrapping plate 1, and the plate wrapping plate is bent and the plate wrapping plate 81 is fixed at the middle part and the plate wrapping plate positioning plate 1 is fixed at the position by the corresponding position. In practical application, when the plate wrapping plate is bent and shaped, the plate wrapping front bottom plate 82 is pressed and fixed by the plate wrapping front bottom plate positioning mechanism, meanwhile, the bottom of the plate wrapping plate is fixedly welded with the right side of the plate wrapping front bottom plate 82, and then, the subsequent extrusion and bending work can be performed.

Based on the above embodiment, the specific implementation manner of the pressing mechanism is as follows: the jacking mechanism comprises a jacking bracket 21 and a jacking oil cylinder 22, the jacking bracket 21 is fixedly arranged on the supporting bottom plate 1, the fixed end of the jacking oil cylinder 22 is hinged to the left side inside the jacking bracket 21, the right end of the jacking oil cylinder 22 is sleeved in a vertical hole 211 arranged on the jacking bracket 21, the right end of the jacking oil cylinder 22 can swing up and down in the vertical hole 211, the jacking oil cylinder 22 can only swing up and down in the vertical hole 211 and cannot swing back and forth, the fixed end of the jacking oil cylinder 22 is hinged to the jacking bracket 21, the jacking oil cylinder 22 can be guaranteed to swing up and down to a certain extent in the jacking process, and then the passive adaptation adjustment of the wrapper sheet shaping die 3 is facilitated according to the actual limiting condition during extrusion bending shaping, so that the extrusion bending shaping quality of the wrapper sheet plate can be improved; further, based on the above embodiment, the concrete implementation manner of the board wrapping shaping mold 3 is as follows: the package board shaping mould 3 includes fixed connection board 31, design mould 32, fixed connection board 31 is fixed to be set up the telescopic link tip of roof pressure hydro-cylinder 22, and three sets of the equidistant fixed setting of design mould 32 is in on the fixed connection board 31, every group the design mould 32 all includes two shaping boards 321, every group two in the design mould 32 shaping boards 321 fixed connection, in practical application, for the shaping accuracy of bending that improves package board panel, can make the arc curve of the left end right-hand member side of shaping board 321 the same with the arc curve of the left side wall of package board after the shaping.

On the basis of the above embodiment, in order to achieve stable butt joint between the upper edge plate 83 of the bucket and the upper portion of the folded and formed packing plate 81 for subsequent welding and fixing, an upper edge plate auxiliary clamping device is disposed on the outer side of the forming die 32 located on the front side and the right side of the fixed connecting plate 31, the upper edge plate auxiliary clamping device includes a clamping support plate 41, a first upper pressing bolt 42 and a first lower pressing screw 43, the clamping support plate 41 is fixedly disposed on the outer side of the corresponding forming plate 321, the first upper pressing bolt 42 and the first lower pressing bolt 43 are used for achieving upper and lower clamping and fixing of the upper edge plate 52, specifically, an L-shaped support plate 421 is disposed on the outer side of the clamping support plate 41, the first upper pressing bolt 42 is sleeved on the corresponding L-shaped support plate 421, when the upper edge plate 83 is placed on the upper portion of the packing plate 81, the upper edge plate 83 can be pressed down by rotating the first upper pressing bolt 42, and then the upper edge plate 83 can be clamped and fixed by rotating the first lower pressing bolt 43.

Based on the above embodiment, the specific implementation manner of the rear hinge seat positioning assembly is as follows: the back hinging seat positioning assembly comprises a supporting seat 51 and a limiting groove 53, wherein a middle hinging seat plate positioning tool is fixedly arranged in the middle of the supporting seat 51 and comprises a first distance tube 512 and a first positioning shaft 513, specifically, a first positioning frame 511 is fixedly arranged on the upper side of the middle of the supporting seat 51, the first distance tube 512 is fixedly arranged on the left side of the upper part of the first positioning frame 511, the first positioning shaft 513 penetrates through the first distance tube 512, two limiting grooves 53 are formed in the lower left parts of the front side and the rear side of the first distance tube 512, in practical application, the limiting groove 53 is formed by two steel plates which are fixedly welded on a supporting bottom plate 1, the spacing between the two steel plates is the limiting groove 53, and when the middle hinging seat plate positioning tool is used for positioning two middle hinging seat plates 86, the bottom of the middle hinging seat plate 86 is clamped in the corresponding limiting groove 53, then the hinging holes on the middle hinging seat plate 86 are aligned with the pipe holes of the first positioning pipe 512, after the hinging holes of the first positioning pipe 512 and the middle hinging seat plate 86 are aligned, a first positioning shaft 513 is penetrated through the hinging holes of the first positioning pipe 512 and the middle hinging seat plate 86, after the first positioning shaft 513 is penetrated, the positions of the middle hinging seat plate 86 are properly adjusted so that the corresponding side walls of the middle hinging seat plate 86 are tightly attached to the side walls of the first positioning pipe 512, a side hinging seat plate positioning fixture is respectively arranged at the front side and the rear side of the middle hinging seat plate positioning fixture, the side hinging seat plate positioning fixture comprises a second positioning pipe 522 and a second positioning shaft 523, specifically, a second positioning frame 521 is fixedly arranged on the supporting seat 51, the second positioning shaft 523 is fixedly arranged at the left side of the upper part of the second positioning frame 521, the second positioning shaft 523 is penetrated through the second positioning pipe 522, when the two side hinge seat plates 85 are positioned by the side hinge seat plate positioning tool, the bottoms of the side hinge seat plates 85 are clamped in the corresponding limiting grooves 53, then the hinge holes on the side hinge seat plates are aligned with the pipe holes of the second distance pipes 522, after the alignment, the second positioning shaft 523 penetrates through the hinge holes of the second distance pipes 522 and the side hinge seat plates 85, and after the second positioning shaft 523 penetrates through, the positions of the side hinge seat plates 85 are properly adjusted, so that the corresponding side walls of the side hinge seat plates are tightly attached to the side walls of the second distance pipes 522. Before the extrusion bending forming of the cladding plate 81, the four side hinge seat plates 85 and the two middle hinge seat plates 86 need to be fixed at corresponding positions by corresponding positioning tools.

Based on the above embodiment, the specific implementation manner of the plate wrapping front bottom plate positioning mechanism is as follows: the plate wrapping front bottom plate positioning mechanism comprises positioning columns 61, positioning blocks 62 and pressing mechanisms, wherein the two positioning columns 62 are fixedly arranged on the front side and the rear side of the middle of the supporting bottom plate 1, the front side and the rear side of the plate wrapping front bottom plate 82 on the supporting bottom plate 1 are limited by the two positioning columns 61, the two positioning blocks 62 are arranged on the left side of the middle of the supporting bottom plate 1 side by side, the left edge position of the plate wrapping front bottom plate 82 on the supporting bottom plate 1 is realized by the positioning blocks 62, the pressing mechanisms are arranged at positions close to the positioning blocks 62, the pressing mechanisms comprise supporting columns 641 and rotating plates 641, the rotating plates 641 are rotatably arranged on the upper parts of the supporting columns 641, namely the rotating plates 641 can do circular motion relative to the supporting columns 641 but cannot do up-down motion, a second pressing bolt 643 is arranged on the rotating plates 641, and the second pressing bolt 643 is used for pressing the plate wrapping front bottom plate 82 on the supporting bottom plate 641. In practical application, after the initial positioning of the front bottom plate 82 of the cladding plate is achieved by using the positioning column 61 and the positioning block 62, the top of the front bottom plate 82 of the cladding plate is pressed against the upper portion of the front bottom plate 82 of the cladding plate by rotating the second pressing bolt 643, so that the pressing positioning of the front bottom plate 82 of the cladding plate is achieved, and after the front bottom plate 82 of the cladding plate is positioned, the lower portion of the plate of the cladding plate is fixedly connected with the right side of the front bottom plate 82 of the cladding plate by welding.

When the bucket is assembled and rivet welded synchronously by the utility model, in order to facilitate the close fitting of the side plates 84 and the wrapping plates 81, a limiting assembly is arranged on the left side of each positioning column 61, the limiting assembly comprises a limiting clamping plate 63, one end of the limiting clamping plate 63 is hinged with the supporting bottom plate 1, the other end of the limiting clamping plate 63 is used for propping the side plate 84 corresponding to the bucket against the front side or the rear side of the wrapping plates 81, specifically, a bayonet is arranged at the limiting end of the limiting clamping plate 63, and after the limiting clamping plate 63 rotates to the side plate 84, the side wall of the bayonet is just fitted with the outer side wall of the side plate 84, so that the jacking of the side plate 84 is realized.

When the wrapping plate shaping die 3 is used for extrusion bending shaping of the wrapping plate, in order to prevent displacement of the middle hinge seat plate 86 and the side hinge seat plate 85 caused by overlarge jacking pressure in the extrusion bending process, a pull rod 7 is further arranged in the utility model, the upper right side of the jacking bracket 21 is connected with the upper part of the middle hinge seat plate positioning tool in a detachable connection mode, specifically, a first clamping groove 212 is arranged at the upper right side of the jacking bracket 21, a second clamping groove 514 is arranged at the upper part of the first positioning frame 511, corresponding clamping ends of the pull rod 7 are respectively and fixedly arranged in the first clamping groove 212 and the second clamping groove 514, and after the pull rod 7 is clamped in the first clamping groove 212 and the second clamping groove 514, left and right movement limiting of the pull rod 7 can be realized by utilizing the two limiting plates, so that the upper part of the first positioning frame 511 and the jacking bracket 21 are fixedly connected by utilizing the pull rod 7 in the extrusion bending process of the wrapping plate, and thus the stability of the middle hinge seat plate is guaranteed, and the stability of the plate is guaranteed, and the quality of the hinge seat plate is guaranteed, and the stability of the plate is guaranteed to be stably bent in the middle when the support seat is guaranteed.

The main operation flow of extrusion bending shaping of the wrapping plate 81 and initial assembly rivet welding of the bucket by using the utility model is as follows: before component tooling positioning, machining wrapping plate materials required by wrapping plate forming of a bucket, and machining and preparing a wrapping plate front bottom plate 82, an upper edge plate 83, side plates 84, side hinge seat plates 85, a middle hinge seat plate 86 and an upper edge plate 83; and ensures that the sheathing shaping die 3 is in the initial position. After the preparation work is finished, the front bottom plate 82 of the wrapper plate is fixed at the corresponding position, then the four side hinging seat plates 85 and the two middle hinging seat plates 86 are fixed at the corresponding positions, after the plate positions are fixed, the bottom of the wrapper plate is fixedly welded with the right side of the front bottom plate of the wrapper plate, after the connection is finished, the wrapper plate is enabled to tilt right on the side hinging seat plates 85 and the middle hinging seat plates 86, after the wrapper plate is tilted, the pull rod 7 is clamped and installed, after the pull rod 7 is installed, the jacking cylinder 22 is started, the jacking cylinder 22 pushes the wrapper plate shaping die 3 to move towards the side hinging seat plates 85 and the middle hinging seat plates 86, after the wrapper plate shaping die 3 moves in place, the cladding plate is clamped down by the cladding plate shaping mould 3, the side hinging seat plate 85 and the middle hinging seat plate 86, extrusion bending deformation is realized, processing of the cladding plate 81 is realized, after the cladding plate 81 is bent and formed, the pressing oil cylinder 22 is ensured to be motionless, then, two side plates 84 are placed on the front side and the rear side of the cladding plate 81, the bottom left end of each side plate 84 is pressed on the cladding plate 81 by utilizing the limiting clamping plate 63, the upper edge plate 83 is placed on the upper part of the cladding plate 81 after the two side plates 84 are positioned, upper and lower clamping and positioning are realized by utilizing the first upper pressing bolt 42 and the first lower pressing screw 43, and rivet welding connection of related combined parts can be realized by utilizing welding after the upper edge plate 83 is positioned, so that initial fixed connection of the main structural parts of the bucket is realized.

In the present utility model, the terms "upper", "lower", "front", "rear", "left" and "right" are relative positions used for convenience in describing the positional relationship, and thus are not to be construed as limiting the scope of protection as absolute positions.

Other than the technical features described in the specification, all are known to those skilled in the art.

While the preferred embodiments and examples of the present utility model have been described in detail with reference to the accompanying drawings, the present utility model is not limited to the embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present utility model, and the scope of the utility model is also defined by the appended claims.

Claims

1. The utility model provides a small-size loader scraper bowl shaping, rivet welding auxiliary fixtures, characterized by, including supporting baseplate, roof pressure mechanism, package board design mould, back articulated seat locating component, package board front plate locating mechanism, roof pressure mechanism sets up the left side upper portion of supporting baseplate, roof pressure mechanism is used for driving package board design mould carries out back and forth reciprocating motion, package board design mould is used for the roof pressure of package board panel, back articulated seat locating component sets up supporting baseplate right side upper portion, back articulated seat locating component is used for realizing the location of the constituteing panel of each articulated seat at package board rear portion, package board front plate locating mechanism sets up supporting baseplate middle part rear side, package board front plate locating mechanism is used for realizing the pressure of package board front plate on supporting baseplate and puts the location.

2. The auxiliary tool for forming and rivet welding of the small loader bucket according to claim 1, wherein the jacking mechanism comprises a jacking bracket and a jacking oil cylinder, the jacking bracket is fixedly arranged on the supporting bottom plate, the fixed end of the jacking oil cylinder is hinged to the left side of the inside of the jacking bracket, the right end of the jacking oil cylinder is sleeved in a vertical hole formed in the jacking bracket, and the right end of the jacking oil cylinder can swing up and down in the vertical hole.

3. The auxiliary forming and rivet welding tool for the bucket of the small loader according to claim 2, wherein the plate wrapping and shaping die comprises a fixed connecting plate and shaping dies, the fixed connecting plate is fixedly arranged at the end part of a telescopic rod of the jacking oil cylinder, three groups of shaping dies are fixedly arranged on the fixed connecting plate at equal intervals, each group of shaping dies comprises two shaping plates, and two shaping plates in each group of shaping dies are fixedly connected.

4. The auxiliary forming and rivet welding tool for the small loader bucket according to claim 3, wherein an upper edge plate auxiliary clamping device is arranged on the outer sides of the forming die heads on the front side and the right side of the fixed connecting plate, the upper edge plate auxiliary clamping device comprises a clamping supporting plate, a first upper pressing bolt and a first lower pressing screw, the clamping supporting plate is fixedly arranged on the outer side of the corresponding forming plate, and the first upper pressing bolt and the first lower pressing bolt are used for realizing upper and lower clamping and fixing of the upper edge plate.

5. The auxiliary forming and rivet welding tool for the bucket of the small loader according to claim 4, wherein the rear hinging seat positioning assembly comprises a supporting seat and a limiting groove, a middle hinging seat plate positioning tool is fixedly arranged in the middle of the supporting seat and comprises a first distance tube and a first positioning shaft, the first positioning shaft penetrates through the first distance tube, two limiting grooves are formed in the left lower portions of the front side and the rear side of the first distance tube, a side hinging seat plate positioning tool is respectively arranged on the front side and the rear side of the middle hinging seat plate positioning tool, the side hinging seat plate positioning tool comprises a second distance tube and a second positioning shaft, the second positioning shaft penetrates through the second distance tube, and two limiting grooves are formed in the left lower portions of the front side and the rear side of the second distance tube.

6. The auxiliary tool for forming and rivet welding of the small loader bucket according to claim 5, wherein the positioning mechanism of the front bottom plate of the wrapping plate comprises positioning columns, positioning blocks and pressing mechanisms, the two positioning columns are fixedly arranged on the front side and the rear side of the middle of the supporting bottom plate, the two positioning blocks are arranged on the left side of the middle of the supporting bottom plate side by side, the pressing mechanisms are arranged at positions close to the positioning blocks, each pressing mechanism comprises a supporting column and a rotating plate, the rotating plate is rotatably arranged on the upper portion of the supporting column, a second pressing bolt is arranged on the rotating plate, and the second pressing bolt is used for pressing the front bottom plate of the wrapping plate on the supporting bottom plate.

7. The auxiliary tool for forming and rivet welding of a small loader bucket according to claim 6, wherein a limiting assembly is arranged on the left side of each positioning column, the limiting assembly comprises a limiting clamping plate, one end of the limiting clamping plate is hinged with the supporting bottom plate, and the other end of the limiting clamping plate is used for jacking a side plate corresponding to the bucket on the front side or the rear side of the wrapping plate.

8. The auxiliary tool for forming and rivet welding of a small loader bucket according to claim 7, further comprising a pull rod, wherein the pull rod is detachably connected with the upper part of the right side of the top pressing support and the upper part of the plate positioning tool of the middle hinging seat.