Auxiliary welding tool of ear picking rack

Abstract

The auxiliary welding tool comprises a first base, a first sliding rail and a plurality of limiting hole plates are fixed to the top face of the first base, and a movable outer wall limiting device and a movable inner wall limiting device are arranged on the first sliding rail. The inner wall limiting device and the outer wall limiting device are oppositely arranged and are used for abutting against the inner side and the outer side of the ear picking rack side wall welding part respectively. The multiple limiting hole plates are distributed in the length direction of the first sliding rail at intervals, and the outer wall limiting device and the inner wall limiting device can be connected with the limiting hole plates through first positioning pins. By the adoption of the scheme, the outer wall limiting device and the inner wall limiting device can move, after the first sliding rail moves to the needed position, the first positioning pin is used for being connected with the limiting hole plate at the corresponding position for positioning, and therefore the inner side and the outer side of the ear picking rack side wall welding part can be clamped tightly, and the transverse positioning effect is achieved; in conclusion, due to the fact that the positions of the outer wall limiting device and the inner wall limiting device are adjustable, the auxiliary tool can be suitable for ear picking racks with different transverse sizes, and universality is good.

Description

Technical Field

[0001] The utility model relates to the field of ear picking stands, in particular to an auxiliary welding tool for the ear picking stand. Background Art

[0002] At present, the ear picking stand of the corn harvester (the ear picking stand is installed in front of the harvester, and a straw divider and an ear picking stand assembly are installed in front of it, which is responsible for picking corn. A feeding auger is installed inside the ear picking stand, and an elevator is installed behind the ear picking stand. The feeding auger feeds the picked corn through the ear picking stand, feeds the elevator, and enters the peeling machine frame through the elevator. The ear picking stand welding mainly consists of 8 kinds of welded parts: ear picking frame welding, auger bottom plate welding, left wall welding, right wall welding, bottom plate reinforcement plate, interface welding, front bottom beam, tension wheel bracket, and most of the welding tooling is special. Utility Model Content

[0003] Aiming at the problem that the welding auxiliary tooling of the ear picking stand in the prior art is dedicated and has poor versatility, the utility model provides an auxiliary welding tooling of the ear picking stand with strong versatility.

[0004] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: an auxiliary welding tool for an ear picking stand, comprising a first base, a first slide rail and a plurality of limit orifice plates are fixed to the top surface of the first base, a movable outer wall limit device and an inner wall limit device are provided on the first slide rail, the inner wall limit device and the outer wall limit device are arranged relatively to each other and are respectively used to abut against the inner and outer sides of the welded side walls of the ear picking stand; the plurality of limit orifice plates are spaced apart along the length direction of the first slide rail, and the outer wall limit device and the inner wall limit device can be connected to the limit orifice plates by a first positioning pin.

[0005] The beneficial effect of the utility model is that since both the outer wall limit device and the inner wall limit device can be moved and adjusted by the first slide rail, after being moved to the desired position by the first slide rail, the first positioning pin is used to connect and position the corresponding position limit hole plate, so that the inner and outer sides of the welded side walls of the ear picking stand can be clamped and the effect of lateral positioning can be achieved; in summary, since the positions of the outer wall limit device and the inner wall limit device are adjustable, the auxiliary tooling can be applicable to ear picking stands with different lateral sizes, and has good versatility.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the outer wall limiting device includes a first slide, a second slide rail, a first cylinder and a clamping assembly. The first slide is movably connected to the first slide rail, the second slide rail and the first cylinder are fixed to the top surface of the first slide, the clamping assembly is connected to the driving end of the first cylinder and is movably connected to the second slide rail, the first cylinder can push the clamping assembly to move along the second slide rail, and is used to abut the outer side of the welded side wall of the ear picking stand; the first positioning pin connects the first slide to the limiting orifice plate.

[0008] The beneficial effect of adopting the above-mentioned further scheme is that the outer wall limiting device is provided with a first slide, a second slide rail, a first cylinder and a clamping assembly, so that when the outer wall limiting device moves along the first slide rail, it can be connected to the first slide through the first positioning pin and fix the position of the first slide; then the clamping assembly can be pushed by the first cylinder to move along the second slide rail, so that the position of the clamping assembly can be automatically fine-tuned, so that the clamping assembly presses the side wall for welding to improve the stability of the position of the side wall welding.

[0009] Furthermore, the tightening assembly includes a welding frame and a first positioning plate. The welding frame is a rectangular frame. A diagonal brace is fixed on the side of the welding frame facing away from the inner wall limiting device. The first positioning plate is fixed on the welding frame and arranged toward the inner wall limiting device.

[0010] The beneficial effect of adopting the above further scheme is that the rectangular frame has good stability and plays a role in weight reduction, and the diagonal brace improves stability; the first positioning plate is used to press against the side wall weld, and the second positioning pin and the third positioning pin are used to clip into the side wall weld to position the side wall weld.

[0011] Furthermore, the outer wall limiting device includes a second positioning pin and a third positioning pin arranged in the same direction, the third positioning pin is diamond-shaped, and the second positioning pin and the third positioning pin are both facing the inner wall limiting device and are used for positioning with the outer side of the ear picking stand welded to the side wall.

[0012] The beneficial effect of adopting the above further solution is that the second positioning pin and the third positioning pin are both facing the inner wall limiting device and are used for welding and clamping with the side wall for positioning.

[0013] Furthermore, the inner wall limiting device includes a second slide, a contoured positioning plate and a contoured cover plate. The second slide is movably connected to the first slide rail, the contoured positioning plate is fixed on the second slide, and the contoured cover plate is rotatably connected to the contoured positioning plate. The opposite surfaces of the contoured positioning plate and the contoured cover plate are arc-shaped and form an internal and external clamping structure for the arc surface welded to the auger bottom plate.

[0014] The beneficial effect of adopting the above further solution is that the inner wall limit device is connected to the first slide rail through the second slide, and the opposite surfaces of the contoured positioning plate and the contoured cover plate are arc-shaped and are used to clamp the inner and outer sides of the welded auger bottom plate.

[0015] Furthermore, at least two second positioning plates are fixed to the vertical surface of the contoured positioning plate, and the second positioning plates are arranged toward the outer wall limiting device.

[0016] The beneficial effect of adopting the above further solution is that the second positioning plate is arranged toward the outer wall limiting device, so that the second positioning plate is used to be welded against the side wall.

[0017] Furthermore, a curved surface is provided in the middle of the contoured cover plate, one end of the contoured cover plate is rotatably connected to the contoured positioning plate through a first pin shaft, and the other end is provided with a spiral tightener for fixing the position of the contoured cover plate.

[0018] The beneficial effect of adopting the above further scheme is that the contoured cover plate can be moved along the contoured positioning plate to facilitate the insertion of the auger base plate after welding and the removal of the ear picking stand after welding; a spiral presser is provided to facilitate fixing the position of the contoured cover plate and to facilitate the contoured cover plate to press the auger base plate for welding.

[0019] Furthermore, the screw presser includes a second base, a positioning member and a rotating member, the second base is fixed on the second slide; one end of the rotating member is hinged to the second base and can rotate around the second base, and the other end is threadedly connected to a movable pressing member, which is used to press the contoured cover plate; the positioning member is detachably connected to the second base and can clamp the rotating member.

[0020] The beneficial effect of adopting the above-mentioned further scheme is that the positioning member is removable and can clamp the rotating member after being installed, so that the rotating member is set close to the contoured cover plate; the clamping member is threadedly connected to the rotating member, and after the rotating member is rotated into place and clamped by the positioning member, the clamping member can be screwed and pressed against the contoured cover plate, thereby clamping the auger base plate for welding.

[0021] Furthermore, a large set clamping device and a large set positioning device for pressing the ear picking stand on both sides of the ear picking base frame welded together are fixed on the first base. The large set clamping device is provided with a movable fourth positioning pin, and the large set positioning device is provided with a movable abutment. The fourth positioning pin and the abutment are used for positioning both sides of the large set welded together with the ear picking base frame.

[0022] The beneficial effect of adopting the above further scheme is that the large set clamping device and the large set positioning device are respectively used to press the two sides of the ear picking frame weld, and the large set clamping device and the large set positioning device are used to press and position the large set on the ear picking frame weld, thereby facilitating the fixing of the position of the ear picking frame weld.

[0023] Furthermore, the large set clamping device includes a seat weld and a guide cylinder. The seat weld is fixedly connected to the first base and is arranged in the vertical direction with the guide cylinder fixed on the top. The fourth positioning pin is passed through the guide cylinder, and a push bolt is provided on the side of the fourth positioning pin that is away from the ear picking frame weld.

[0024] The beneficial effect of adopting the above further scheme is that the fourth positioning pin can be pushed to move axially by pushing the bolt, so as to be stuck in the large sleeve welded to the ear picking frame, and the abutment piece presses against the other end of the large sleeve; the guide cylinder guides the moving direction of the fourth positioning pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the auxiliary welding tooling of the ear picking stand of the utility model;

[0026] Figure 2 It is a schematic diagram of the outer wall limiting device of the utility model;

[0027] Figure 3 It is a schematic diagram of the inner wall limiting device of the utility model;

[0028] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0029] Figure 5 It is a schematic diagram of a large set of clamping devices of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 100 first base; 101 first slide rail; 102 limiting hole plate; 103 first positioning pin;

[0032] 200 outer wall limit device; 201 first slide; 202 second slide rail; 203 first cylinder; 204 second positioning pin; 205 third positioning pin; 206 welding frame; 207 first positioning plate; 208 diagonal support; 209 first clamp; 210 shield; 211 first limit;

[0033] 300 inner wall limit device; 301 second slide; 302 contour positioning plate; 303 contour cover plate; 304 second positioning plate; 305 bottom plate positioning pin device; 306 ear picking bottom frame positioning plate; 307 clamping plate guide plate; 308 fifth positioning pin; 309 second clamp;

[0034] 350 screw tightener; 351 second base; 352 positioning member; 353 rotating member; 354 ​​pressing member;

[0035] 400 large set clamping device; 401 fourth positioning pin; 402 seat welding; 403 guide cylinder; 404 push bolt; 405 limit threaded pin;

[0036] 501 large set positioning device; 502 small set clamping device; 503 small set positioning device; 504 tension wheel bracket positioning device; 505 bottom plate positioning device; 506 interface welding positioning device; 507 air circuit system; 508 ear picking bottom frame hole positioning device. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] Example 1

[0039] An auxiliary welding tooling for an ear picking stand comprises a first base 100, a first slide rail 101 and a plurality of limiting orifice plates 102 are fixed to the top surface of the first base 100, a movable outer wall limiting device 200 and an inner wall limiting device 300 are provided on the first slide rail 101, the inner wall limiting device 300 and the outer wall limiting device 200 are arranged opposite to each other and are respectively used to abut against the inner and outer sides of the welded side walls of the ear picking stand; the plurality of limiting orifice plates 102 are spaced apart along the length direction of the first slide rail 101, and the outer wall limiting device 200 and the inner wall limiting device 300 can be connected to the limiting orifice plates 102 by means of a first positioning pin 103.

[0040] The beneficial effects of this embodiment are: since both the outer wall limiting device 200 and the inner wall limiting device 300 can be moved and adjusted by the first slide rail 101, after being moved to the desired position by the first slide rail 101, the first positioning pin 103 is used to connect and position the corresponding position limiting hole plate 102, so that the inner and outer sides of the welded side walls of the ear picking stand can be clamped and the effect of lateral positioning can be achieved; in summary, since the positions of the outer wall limiting device 200 and the inner wall limiting device 300 are adjustable, the auxiliary tooling can be applied to ear picking stands with different lateral sizes, and has good versatility.

[0041] Example 2

[0042] Preferably, on the basis of Example 1, the outer wall limiting device 200 includes a first slide 201, a second slide rail 202, a first cylinder 203 and a clamping assembly, the first slide 201 is movably connected to the first slide rail 101, the second slide rail 202 and the first cylinder 203 are fixed on the top surface of the first slide 201, the clamping assembly is connected to the driving end of the first cylinder 203 and is movably connected to the second slide rail 202, the first cylinder 203 can push the clamping assembly to move along the second slide rail 202, and is used to abut the outer side of the welded side wall of the ear picking stand; the first positioning pin 103 connects the first slide 201 with the limiting orifice plate 102.

[0043] The beneficial effect of adopting the preferred scheme in the above embodiment is that the outer wall limiting device 200 is provided with a first slide 201, a second slide rail 202, a first cylinder 203 and a clamping assembly, so that when the outer wall limiting device 200 moves along the first slide rail 101, it can be connected to the first slide 201 through the first positioning pin 103 and fix the position of the first slide 201; then the first cylinder 203 can be used to push the clamping assembly to move along the second slide rail 202, so that the position of the clamping assembly can be automatically fine-tuned, so that the clamping assembly presses the side wall to be welded, so as to improve the stability of the position of the side wall welding.

[0044] On the basis of the above embodiment, a rectangular protective cover 210 is disposed outside the first cylinder 203 to protect the first cylinder 203 .

[0045] Example 3

[0046] Preferably, on the basis of Example 2, the clamping assembly includes a welding frame 206 and a first positioning plate 207, the welding frame 206 is a rectangular frame, a diagonal brace 208 is fixed on the side of the welding frame 206 facing away from the inner wall limiting device 300, and the first positioning plate 207 is fixed on the welding frame 206 and arranged toward the inner wall limiting device 300.

[0047] The beneficial effect of adopting the preferred scheme in the above embodiment is that the rectangular frame has good stability and plays a role in weight reduction, and the diagonal brace 208 improves stability; the first positioning plate 207 is used to press against the side wall weld, and the second positioning pin 204 and the third positioning pin 205 are used to snap into the side wall weld to position the side wall weld.

[0048] On the basis of the above embodiment, there are at least two first positioning plates 207 , and the first positioning plates 207 are square in shape.

[0049] Example 4

[0050] Preferably, on the basis of embodiments 1-3, the outer wall limiting device 200 includes a second positioning pin 204 and a third positioning pin 205 arranged along the same direction, the third positioning pin 205 is diamond-shaped, and the second positioning pin 204 and the third positioning pin 205 are both facing the inner wall limiting device 300 and are used for outer clamping positioning welded with the side wall of the ear picking stand.

[0051] The beneficial effect of adopting the preferred solution in the above embodiment is that the second positioning pin 204 and the third positioning pin 205 are both facing the inner wall limiting device 300 and are used for welding and clamping with the side wall for positioning.

[0052] Specifically, the second positioning pin 204 and the third positioning pin 205 may be installed on a side of the welding frame 206 facing the inner wall limiting device 300 .

[0053] On the basis of the above embodiment, the outer wall limiting device 200 is provided with a rotatable first clamp 209, one end of the first clamp 209 is provided with a rotating shaft, and the other end of the first clamp 209 rotates toward the side wall weld and clamps the side wall weld. The first clamp 209 can also be installed on the welding frame 206.

[0054] Example 5

[0055] Preferably, on the basis of embodiments 1-4, the inner wall limiting device 300 includes a second slide 301, a contoured positioning plate 302 and a contoured cover plate 303, the second slide 301 is movably connected to the first slide rail 101, the contoured positioning plate 302 is fixed on the second slide 301, the contoured cover plate 303 is rotatably connected to the contoured positioning plate 302, and the opposing surfaces of the contoured positioning plate 302 and the contoured cover plate 303 are arc-shaped and form an internal and external clamping structure for welding the arc surface of the auger bottom plate.

[0056] The beneficial effect of adopting the preferred scheme in the above embodiment is that the inner wall limit device 300 is connected to the first slide rail 101 through the second slide 301, and the opposite surfaces of the contoured positioning plate 302 and the contoured cover plate 303 are arc-shaped and are used to clamp the inner and outer sides of the welded auger bottom plate.

[0057] Example 6

[0058] Preferably, on the basis of embodiments 1-5, at least two second positioning plates 304 are fixed to the vertical surface of the contoured positioning plate 302 , and the second positioning plates 304 are arranged toward the outer wall limiting device 200 .

[0059] The beneficial effect of adopting the preferred solution in the above embodiment is that the second positioning plate 304 is arranged toward the outer wall limiting device 200, so that the second positioning plate 304 is used to press against the side wall for welding.

[0060] Example 7

[0061] Preferably, based on embodiments 1-6, a curved surface is provided in the middle of the contoured cover plate 303, one end of the contoured cover plate 303 is rotatably connected to the contoured positioning plate 302 via a first pin shaft, and the other end is provided with a spiral tightener 350 for fixing the position of the contoured cover plate 303.

[0062] The beneficial effect of adopting the preferred scheme in the above embodiment is that the contoured cover plate 303 can be placed along the contoured positioning plate 302 to facilitate the insertion of the auger base plate after welding and the removal of the ear picking stand after welding; a spiral presser 350 is provided to facilitate fixing the position of the contoured cover plate 303 and facilitating the contoured cover plate 303 to press the auger base plate for welding.

[0063] Example 8

[0064] Preferably, on the basis of Examples 1-7, the spiral presser 350 includes a second base 351, a positioning member 352 and a rotating member 353, the second base 351 is fixed on the second slide 301; one end of the rotating member 353 is hinged to the second base 351 and can rotate around the first base 100, and the other end is threadedly connected with a movable clamping member 354, and the clamping member 354 is used to clamp the contoured cover 303; the positioning member 352 is detachably connected to the second base 351 and can clamp the rotating member 353.

[0065] The beneficial effect of adopting the preferred scheme in the above embodiment is that the positioning member 352 is detachable and can clamp the rotating member 353 after being installed, so that the rotating member 353 is set close to the contoured cover plate 303; the clamping member 354 is threadedly connected to the rotating member 353. After the rotating member 353 is rotated into place and clamped by the positioning member 352, the clamping member 354 can be screwed and pressed against the contoured cover plate 303, thereby clamping the auger bottom plate for welding.

[0066] On the basis of the above embodiment, the positioning member 352 may be a long clip member, which is fixed on the first base 100 through a clip structure.

[0067] Example 9

[0068] Preferably, on the basis of Examples 1-8, a large set clamping device 400 and a large set positioning device 501 for clamping both sides of the ear picking frame welded together on the ear picking stand are also fixed on the first base 100. The large set clamping device 400 is provided with a movable fourth positioning pin 401, and the large set positioning device 501 is provided with a movable abutment. The fourth positioning pin 401 and the abutment are used for positioning both sides of the large set welded together on the ear picking frame.

[0069] The beneficial effect of adopting the preferred scheme in the above embodiment is that the large set clamping device 400 and the large set positioning device 501 are respectively used to press the two sides of the ear picking frame weld, and the large set clamping device 400 and the large set positioning device 501 are used to press and position the large set on the ear picking frame weld, thereby facilitating the fixing of the position of the ear picking frame weld.

[0070] On the basis of the above-mentioned embodiment, the structures of the large set of clamping devices 400 and the large set of positioning devices 501 are similar, and the large set of clamping devices 400 and the large set of positioning devices 501 are provided in two groups.

[0071] Example 10

[0072] Preferably, on the basis of Examples 1-9, the large set clamping device 400 includes a seat weld 402 and a guide cylinder 403, the seat weld 402 is fixedly connected to the first base 100, and is arranged in the vertical direction and the guide cylinder 403 is fixed on the top, the guide cylinder 403 is passed through the fourth positioning pin 401, and a push bolt 404 is provided on the side of the fourth positioning pin 401 that is away from the ear picking frame weld.

[0073] The beneficial effect of adopting the preferred scheme in the above embodiment is that the fourth positioning pin 401 can be pushed to move axially by pushing the bolt 404, so as to be stuck in the large sleeve welded on the ear picking frame, and the abutment piece presses against the other end of the large sleeve; the guide cylinder 403 guides the moving direction of the fourth positioning pin 401.

[0074] On the basis of the above embodiment, the advancement bolt 404 can be an integrated structure with the fourth positioning pin 401, or it can be a simple abutment structure. The advancement bolt 404 is threadedly connected to the guide cylinder 403, so that the advancement bolt 404 can push the fourth positioning pin 401 to move when it moves axially, and the advancement bolt 404 has a good pushing effect and does not retract; the radial connection of the guide cylinder 403 is provided with a limiting threaded pin 405, and the limiting threaded pin 405 is radially pressed against the outer periphery of the fourth positioning pin 401 to radially compress the fourth positioning pin 401.

[0075] The present application is used for auxiliary welding tooling to assist in welding of ear-picking stand, the ear-picking stand comprises two side wall welds, front bottom beam, tension wheel bracket, ear-picking stand weld, auger bottom plate weld, bottom plate reinforcement plate, interface weld, wherein the two side wall welds are divided into left wall weld and right wall weld, the auger bottom plate weld is provided with an arc surface and the outer wall is provided with two ear-picking stand welds, one of which is fixed with tension wheel bracket, the auger bottom plate weld is provided with an opening in the middle and an interface weld is fixed at the opening. The present application is used for assisting in positioning various parts of the ear-picking stand to facilitate welding of various parts, and the auxiliary welding tooling of the present application will be removed after welding.

[0076] In addition, the auxiliary welding tooling of the ear picking stand of the present application is provided with two outer wall limit devices 200, two inner wall limit devices 300, a tension wheel bracket positioning device 504, a bottom plate positioning device 505, an interface welding positioning device 506, an air circuit system 507, an ear picking frame hole positioning device 508, a large sleeve clamping device 400, a large sleeve positioning device 501, a small sleeve clamping device 502 and a small sleeve positioning device 503; the small sleeve clamping device 502 and the small sleeve positioning device 503 are used to fix the small sleeve welded on the ear picking frame, and the small sleeve clamping device 502 is similar in structure to the large sleeve clamping device 400, and the large sleeve clamping device 400 is similar in structure to the large sleeve positioning device 501; there is at least one bottom plate positioning device 505, which is located between the two inner wall limit devices 300, and the bottom plate positioning device 505 also has a contoured positioning plate 302 and a contoured cover plate 303.

[0077] The specific operation sequence of positioning the ear picking stand is as follows:

[0078] Slide the two outer wall limiting devices 200 along the first slide rail 101 to the correct position, and insert the corresponding first positioning pins 103 into the corresponding limiting hole plates 102 to fix the positions of the two outer wall limiting devices 200;

[0079] Slide the two inner wall limiting devices 300 along the first slide rail 101 to the correct position, and insert the corresponding first positioning pins 103 into the corresponding limiting hole plates 102 to fix the positions of the two inner wall limiting devices 300;

[0080] The air circuit system 507 is controlled, and the first cylinder 203 drives the abutting assembly of the outer wall limit device 200 to move and retreat to the first limit 211, and the second cylinder of the tension wheel bracket positioning device 504 and the ear picking frame hole positioning device 508 is driven to retreat to the correct position, and the four contour cover plates 303 are removed, and the pins of the small set positioning device 503, the large set positioning device 501, the small set clamping device 502 and the large set clamping device 400 are retreated to the correct position by using the air trigger;

[0081] The two side walls are welded on the column pin and the diamond pin, the column pin is the second positioning pin 204, and the diamond pin is the third positioning pin 205. The side wall is welded with the first clamp 209 and made to lean against the first positioning plate 207; the auger bottom plate is welded on the bottom plate positioning device 505 and the contoured positioning plates 302 of the two inner wall limit devices 300, and the welded hole of the auger bottom plate is inserted into the bottom plate positioning pin device 305;

[0082] Place the front bottom beam on the bottom plate of the bottom plate positioning device 505 and the two inner wall limit devices 300 profiling positioning plates 302, place the welding of the ear picking frame on the welding of the auger bottom plate and the front bottom beam, use the air trigger to insert the pins of the large sleeve positioning device 501 and the small sleeve positioning device 503 into the large sleeve and small sleeve welded on the ear picking frame, use the air trigger to clamp the large sleeve clamping device 400 and the small sleeve clamping device 502 to clamp the large sleeve and small sleeve welded on the ear picking frame; operate the air circuit system 507 to position the holes of the ear picking frame The pin of the device 508 is inserted into the triangular hole of the welding of the ear picking frame, and the rectangular tube in front of the welding of the ear picking frame is placed against the positioning plate 306 of the ear picking frame; the contoured cover plate 303 is placed against the edge of the clamping plate guide plate 307, hooked onto the fifth positioning pin 308, and clamped with the screw tightener 350, and then the air circuit system 507 is controlled, and the first cylinder 203 drives the welding frame 206 to move to the first limit position 211, at which time the side wall welding is pressed by the first positioning plate 207 and the second positioning plate 304;

[0083] The front bottom beam is clamped by the second clamp 309, and the rectangular tube welded on the front bottom beam by the spiral tightener 350 of the bottom plate positioning device 505, and then the tension wheel bracket is placed on the tension wheel bracket positioning device 504, and the air circuit system 507 is controlled, and the tension wheel bracket is pushed to the correct position by the tension wheel bracket positioning device 504, and then the bottom plate reinforcement plate is welded between the welding of the auger bottom plate and the welding of the ear picking bottom frame, and finally all the welds that can be welded and required are completed;

[0084] Use an air trigger to return the pins of the large set positioning device 501, the small set positioning device 503, the large set clamping device 400 and the small set clamping device 502 to the correct position, open the first clamp 209, open the second clamp 309, open all the spiral pressers 350, remove the four clamping plate guide plates 307, operate the air system 507, return the tensioning wheel bracket positioning device 504 and the ear picking frame hole positioning device 508; operate the air system 507, and drive the welding frame 206 to return to the correct position by the first cylinder 203; lift it off the ear picking frame from the auxiliary welding tooling for welding, and transfer to the next process to repair the weld.

[0085] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0090] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An auxiliary welding tool for an ear picking stand, characterized in that: The invention comprises a first base (100), a first slide rail (101) and a plurality of position limiting orifice plates (102) are fixed on the top surface of the first base (100), a movable outer wall position limiting device (200) and an inner wall position limiting device (300) are provided on the first slide rail (101), the inner wall position limiting device (300) and the outer wall position limiting device (200) are arranged opposite to each other and are respectively used to abut against the inner and outer sides of the welded side walls of the ear picking stand; the plurality of position limiting orifice plates (102) are distributed at intervals along the length direction of the first slide rail (101), and the outer wall position limiting device (200) and the inner wall position limiting device (300) can be connected to the position limiting orifice plates (102) via a first positioning pin (103).

2. The auxiliary welding tool for the ear picking stand according to claim 1 is characterized in that: The outer wall limiting device (200) comprises a first slide (201), a second slide rail (202), a first cylinder (203) and a clamping assembly; the first slide (201) is movably connected to the first slide rail (101); the second slide rail (202) and the first cylinder (203) are fixed on the top surface of the first slide (201); the clamping assembly is connected to the driving end of the first cylinder (203) and is movably connected to the second slide rail (202); the first cylinder (203) can push the clamping assembly to move along the second slide rail (202) and is used to abut against the outer side of the welded side wall of the ear picking stand; the first positioning pin (103) connects the first slide (201) and the limiting orifice plate (102) together.

3. The auxiliary welding tool for the ear picking stand according to claim 2, characterized in that: The tightening assembly comprises a welding frame (206) and a first positioning plate (207); the welding frame (206) is a rectangular frame; a diagonal brace (208) is fixed to the side of the welding frame (206) facing away from the inner wall limiting device (300); and the first positioning plate (207) is fixed to the welding frame (206) and arranged toward the inner wall limiting device (300).

4. The auxiliary welding tool for the ear picking stand according to claim 1, characterized in that: The outer wall limiting device (200) comprises a second positioning pin (204) and a third positioning pin (205) arranged in the same direction, the third positioning pin (205) is rhombus-shaped, and the second positioning pin (204) and the third positioning pin (205) are both oriented toward the inner wall limiting device (300) and are used for positioning with the outer side of the ear picking stand welded to the side wall.

5. The auxiliary welding tool for the ear picking stand according to claim 1, characterized in that: The inner wall limiting device (300) comprises a second slide (301), a contoured positioning plate (302) and a contoured cover plate (303); the second slide (301) is movably connected to the first slide rail (101); the contoured positioning plate (302) is fixed on the second slide (301); the contoured cover plate (303) is rotatably connected to the contoured positioning plate (302); the opposing surfaces of the contoured positioning plate (302) and the contoured cover plate (303) are arc-shaped and form an inner and outer clamping structure for welding the arc surface of the auger bottom plate.

6. The auxiliary welding tool for the ear picking stand according to claim 5, characterized in that: At least two second positioning plates (304) are fixed to the vertical surface of the contoured positioning plate (302), and the second positioning plates (304) are arranged toward the outer wall limiting device (200).

7. The auxiliary welding tool for the ear picking stand according to claim 5, characterized in that: The middle part of the contoured cover plate (303) is provided with an arc surface, one end of the contoured cover plate (303) is rotatably connected to the contoured positioning plate (302) via a first pin shaft, and the other end is provided with a spiral tightener (350) for fixing the position of the contoured cover plate (303).

8. The auxiliary welding tool for the ear picking stand according to claim 7, characterized in that: The spiral compressor (350) comprises a second base (351), a positioning member (352) and a rotating member (353), wherein the second base (351) is fixed on the second slide (301); one end of the rotating member (353) is hinged to the second base (351) and can rotate around the first base (100), and the other end is threadedly connected to a movable pressing member (354), wherein the pressing member (354) is used to press the contoured cover plate (303); the positioning member (352) is detachably connected to the second base (351) and can clamp the rotating member (353).

9. The auxiliary welding tool for the ear picking stand according to any one of claims 1 to 8, characterized in that: A large set clamping device (400) and a large set positioning device (501) for pressing the two sides of the welding of the ear picking base frame of the ear picking stand are also fixed on the first base (100); the large set clamping device (400) is provided with a movable fourth positioning pin (401); the large set positioning device (501) is provided with a movable abutment; the fourth positioning pin (401) and the abutment are used to position the two sides of the welding large set of the ear picking base frame.

10. The auxiliary welding tool for the ear picking stand according to claim 9, characterized in that: The large set clamping device (400) comprises a seat weld (402) and a guide cylinder (403); the seat weld (402) is fixedly connected to the first base (100), and is arranged in a vertical direction with the guide cylinder (403) fixed on the top; the fourth positioning pin (401) is passed through the guide cylinder (403); and a push bolt (404) is provided on the side of the fourth positioning pin (401) facing away from the ear picking frame weld.

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