CN210731495U

CN210731495U - Welding fixture for blade

Info

Publication number: CN210731495U
Application number: CN201921620226.6U
Authority: CN
Inventors: 曲杰; 熊东锋; 潘东东; 曹俊野; 王洋
Original assignee: Zhejiang Qianjiang Robot Co ltd
Current assignee: Zhejiang Qianjiang Robot Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-06-12
Anticipated expiration: 2029-09-26

Abstract

The utility model provides a welding jig of blade belongs to anchor clamps technical field. It has solved the problem that current blade welding precision is low. This welding jig of blade, including the centre gripping platform with be located the locating part of centre gripping platform both sides respectively, the locating part has and can be formed with the first centre gripping clearance that is located the centre gripping bench top between spacing face and the two spacing faces, is equipped with on the spacing face to separate the head and separate spacing face into last spacing face and lower spacing face. The welding fixture for the blade has the advantage of high welding precision.

Description

Welding fixture for blade

Technical Field

The utility model belongs to the technical field of anchor clamps, a welding jig of blade is related to.

Background

The cutting main body of the mower is a steel pipe, blades for cutting are welded on the outer wall of the steel pipe, each blade comprises a cutting blade and a U-shaped cutting seat, each cutting seat comprises a bottom plate, the two sides of each bottom plate are turned upwards to form blocking edges, the cutting blades are embedded into the cutting seats, the two sides of each cutting blade are welded with the blocking edges, and gaps are reserved between the bottom plates and the cutting blades. Because the two sides of the cutting blade are connected with the cutting seat in a welding mode, the key of the precision of the blade is how to ensure the clearance between the cutting blade and the cutting seat by the welding clamp in the welding process.

The clamp in the prior art comprises a clamping table, wherein two limiting parts are arranged on the clamping table, and a clamping gap can be formed between the two limiting parts. If the welding fixture is adopted to clamp the cutting blade, the cutting seat is placed on the clamping table, the two limiting parts are moved to clamp the cutting seat, then the cutting blade is embedded into the cutting seat through the manipulator, the depth of the cutting blade embedded into the cutting seat is limited through the movement of the manipulator, and at the moment, the cutting blade and the cutting seat are welded through a welding robot.

The welding fixture is matched with a manipulator to ensure the clearance between the cutting blade and the cutting seat. When a welding robot carries out welding operation, the cutting blade and the cutting seat can be vibrated in different degrees, the position of the cutting blade is suspended, the welding position is kept completely by the clamping force of the manipulator, the cutting blade is prone to being inclined in the welding process, the gap between the cutting blade and the cutting seat is not controllable, and the welding precision of the blade is low.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a welding jig of blade, the technical problem of solution is the welding precision who how to improve the blade.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a welding jig of blade, includes the centre gripping platform and is located the locating part of centre gripping platform both sides respectively, the locating part has and can be formed with the first centre gripping clearance that is located the centre gripping platform top between spacing face and the two spacing faces, its characterized in that, be equipped with on the spacing face and separate the head and separate spacing face and separate into spacing face and spacing face down.

The blade of the existing mower comprises a cutting blade and a U-shaped cutting seat, and a gap is formed between the cutting blade and a bottom plate of the cutting seat. This application grip slipper supplies the blade to place, attaches together on the grip slipper cutting piece and cutting seat welding the front, and makes the blade location between two locating parts through removing two locating parts. The spacing surface is provided with a separating head which separates the spacing surface into an upper spacing surface and a lower spacing surface, and because the cutting blade needs to be welded with the cutting seat, the cutting seat is usually placed on the clamping table with the opening facing upwards, and then the cutting blade is embedded into the cutting seat. Under the prerequisite of confirming the blade and attaching together the order, when attaching together the blade, lean on the cutting seat on spacing face down, lean on the cutting piece on last spacing face, and then separate the head and be located between cutting seat, the cutting piece, make and separate the head and provide the support for the cutting piece to guarantee the clearance between cutting piece and the cutting seat diapire, improve the welding precision of blade from this. The distance between the separating head and the upper surface of the clamping table is set, so that the separating head is attached to the cutting seat, the cutting seat is further clamped firmly, and the welding precision of the blade is further improved.

In the above-mentioned welding jig for a blade, the locating part is rectangular plate-shaped and two locating parts are arranged oppositely, and the end surfaces opposite to the locating parts are the above-mentioned limiting surfaces. The plate-shaped limiting parts enable the shapes of the limiting parts to be regular, the end faces of the two limiting parts are attached to the blade, clamping force applied by the limiting parts to the blade is uniform, the blade is prevented from being inclined, a welding robot is enabled to weld according to a preset stroke, and welding accuracy of the blade is improved.

In the welding jig of the blade, the separation head is blocky and is fixedly connected with the limiting surface, the separation head is perpendicular to the limiting surface, and limiting steps are formed between the upper side of the separation head and the upper limiting surface and between the lower side of the separation head and the lower limiting surface. Because the upper side and the lower side of the separating head and the limiting surface are both provided with the limiting steps, the upper side and the lower side of the separating head are provided with yielding spaces, when the separating head is positioned between the cutting seat and the cutting blade, the cutting seat and the cutting blade still lean against the limiting surface, and the welding precision of the blade is improved.

In the welding jig of foretell blade, welding jig still includes the slide rail that sets up towards the centre gripping platform, sliding connection has the slide on the slide rail, the slide links to each other with the locating part. Because the slide is connected on the slide rail in a sliding manner, the slide is connected with the limiting part, so that the slide drives the limiting part to move along the slide rail, and the limiting part can move smoothly.

In the welding jig of the blade, the welding jig further comprises a follow-up plate, the follow-up plate is located between the sliding seat and the limiting part, the follow-up plate is fixedly connected with the sliding seat and the limiting part, the welding jig further comprises a first telescopic cylinder, and a telescopic head of the first telescopic cylinder is fixedly connected with the follow-up plate. Because the first telescopic cylinder is a power source for moving the limiting part, the limiting part moves along the track of the slide rail, and on the premise that the limiting part has a determined moving track, the telescopic stroke of the first telescopic cylinder can be preset according to the size of a workpiece, so that the first clamping gap of the welding fixture during clamping at each time is ensured, and the welding precision of the blade is improved.

In the above-mentioned welding jig for a blade, the welding jig further includes a pressing arm capable of forming a second clamping gap with the upper side surface of the dividing head. After the cutting blade is embedded into the cutting seat, the cutting blade is positioned on the upper side surface of the separation head, and a second clamping gap is formed between the pressing arm and the upper side surface of the separation head, so that the pressing arm plays a limiting role on the cutting blade, the cutting blade is prevented from shaking in the welding process to the maximum extent, and the welding precision of the cutting blade is improved.

In the welding jig for the blade, the follow-up plate is provided with a through hole, the welding jig further comprises a second telescopic cylinder, a telescopic head of the second telescopic cylinder penetrates through the through hole, the pressure arm is located above the follow-up plate, and the pressure arm is hinged to the telescopic head of the second telescopic cylinder. Because of the pressure arm is articulated with the flexible head of second telescopic cylinder, and the flexible head of second telescopic cylinder wears to establish in the through hole, wears to establish the hole and provides the space of stepping down for the flexible head of second telescopic cylinder on the one hand, and on the other hand plays the effect of direction to the removal of the flexible head of second telescopic cylinder. Furthermore, the position of the pressure arm is controllable by presetting the telescopic stroke of the second telescopic cylinder so as to control the pressure arm to be attached to the cutting blade and improve the welding precision of the cutting blade.

In the welding jig for the blade, the welding jig further comprises a positioning pin, the positioning pin is located between the two opposite limiting surfaces, and a guide head in a cone frustum shape is arranged at one end, far away from the clamping table, of the positioning pin. In the prior art, a manipulator is generally adopted to carry workpieces. The manipulator can be adopted to carry the cutting seat and the cutting blade in the application. Because the clamping table is provided with the positioning pin, the arrangement of the positioning pin enables the manipulator to preset the moving stroke on one hand and ensures the placing positions of the cutting seat and the cutting blade on the other hand, the rough positioning of the cutting seat can be realized, and the deviation of the position of the cutting seat on the clamping table is within the allowable range. Because the end of the positioning pin, which is far away from the clamping table, is provided with the guide head in the shape of a truncated cone, the guide head plays a role in guiding the workpiece to be embedded into the positioning pin, and the positioning pin is conveniently embedded into the workpiece.

Compared with the prior art, the utility model provides a pair of welding jig of blade has following advantage:

1. the separating head is positioned between the cutting seat and the cutting blade to ensure the gap between the cutting seat and the cutting blade, and meanwhile, the cutting seat and the cutting blade are attached to the attaching surface, so that the blade limiting part can firmly clamp the blade, and the welding precision of the blade is improved.

2. The separating head has a supporting function on the cutting blade, and the pressing arm enables the cutting blade to be attached to the upper side face of the separating head, so that the cutting blade is prevented from being in a suspended state in the welding process, and the welding precision of the blade is improved.

Drawings

Fig. 1 is a schematic structural view of the welding jig of the present blade.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a schematic view of an application structure of the welding jig of the present blade.

FIG. 4 is a partial cross-sectional view of FIG. 3

In the figure, 1, a clamping table; 11. positioning pins; 12. a guide head; 2. a limiting member; 21. a limiting surface; 211. an upper limiting surface; 212. a lower limiting surface; 3. a separation head; 4. a limiting step; 5. a slide rail; 6. a slide base; 7. a follower plate; 71. a through hole; 8. a first telescopic cylinder; 9. pressing the arm; 10. a second telescopic cylinder; 13. a support plate; 131. a hole of abdication; 14. a blade; 141. a cutting seat; 142. and (4) cutting the blade.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the welding jig for the insert includes a support plate 13, a clamping table 1, and a stopper 2.

The clamping table 1 is fixedly connected to the upper surface of the clamping table 1, as shown in fig. 2, the welding fixture further comprises a positioning pin 11, the positioning pin 11 is located between two opposite limiting surfaces 21, and a conical guide head 12 is arranged at one end, far away from the clamping table 1, of the positioning pin 11. As shown in fig. 3, the limiting members 2 are respectively located at the limiting members 2 at two sides of the clamping table 1, the limiting members 2 at two sides of the clamping table 1 are plural and arranged in a straight line, and a gap is formed between two adjacent limiting members 2. The limiting parts 2 are in the shape of long strips and are arranged oppositely to each other at two sides of the clamping table 1, and the opposite end faces of the limiting parts 2 are limiting faces 21 and a first clamping gap located above the clamping table 1 can be formed between the two limiting faces 21. Of the two opposite limiting surfaces 21, one of the limiting surfaces 21 is a straight surface, and the other limiting surface 21 is an arc surface.

The upper surface of centre gripping platform 1 has still linked firmly slide rail 5 towards the setting of centre gripping platform 1, and welding jig still includes follow-up plate 7 and is located between slide 6 and locating part 2, and follow-up plate 7 all links firmly with slide 6, locating part 2, and welding jig still includes first telescopic cylinder 8, and the flexible head of first telescopic cylinder 8 links firmly follow-up plate 7.

The spacing surface 21 is provided with a separating head 3, the separating head 3 is perpendicular to the spacing surface 21 and divides the spacing surface 21 into an upper spacing surface 211 and a lower spacing surface 212, and spacing steps 4 are formed between the upper side of the separating head 3 and the upper spacing surface 211 and between the lower side of the separating head 3 and the lower spacing surface 212. The separating head 3 and the limiting part 2 are of an integrated structure. The welding jig further comprises a pressing arm 9, and a second clamping gap can be formed between the pressing arm 9 and the upper side surface of the separation head 3.

The follow-up plate 7 is provided with a through hole 71, the welding fixture further comprises a second telescopic cylinder 10, a telescopic head of the second telescopic cylinder 10 penetrates through the through hole 71, the press arm 9 is located above the follow-up plate 7, and the press arm 9 is hinged to the telescopic head of the second telescopic cylinder 10. The upper surface of the supporting plate 13 is further provided with a yielding hole 131, and the second telescopic cylinder 10 is located in the yielding hole 131.

As shown in fig. 4, the cutting seat and the cutting blade are both provided with mounting holes. Before the blade welding, place on centre gripping platform 1 by manipulator centre gripping cutting seat earlier, after placing, locating pin 11 passes the mounting hole of cutting seat, then the output of left first telescopic cylinder 8 makes one of them locating part 2 remove along slide rail 5, makes the face of leaning on lean on the cutting seat. The cutting blade is clamped by the manipulator and placed on the separating head 3, after the cutting blade is placed, the positioning pin 11 penetrates through the mounting hole of the cutting blade, then the first telescopic cylinder 8 on the right side outputs to enable the other limiting part 2 to move, the attaching surface is attached to the cutting seat, and the cutting seat and the cutting blade are located in the first clamping gap. Then, the output of the second telescopic cylinder 10 enables the pressure arm 9 to overturn and lean against the cutting blade, and clamping before welding the cutting blade can be completed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the clamping table 1, the positioning pin 11, the guide head 12, the limiting member 2, the limiting surface 21, the upper limiting surface 211, the lower limiting surface 212, the dividing head 3, the limiting step 4, the slide rail 5, the slide seat 6, the follower plate 7, the through hole 71, the first telescopic cylinder 8, the pressing arm 9, the second telescopic cylinder 10, the support plate 13, the abdicating hole 131, the blade 14, the cutting seat 141, the cutting blade 142, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a welding jig of blade, includes centre gripping platform (1) and locating part (2) that are located centre gripping platform (1) both sides respectively, locating part (2) have between spacing face (21) and two spacing faces (21) can be formed with the first centre gripping clearance that is located centre gripping platform (1) top, its characterized in that, be equipped with on spacing face (21) and separate head (3) and separate spacing face (21) and separate spacing face (211) and lower limiting surface (212) into.

2. The blade welding jig according to claim 1, wherein the limiting member (2) has a long plate shape, and two limiting members (2) are disposed opposite to each other, and the opposite end surfaces of the limiting members (2) are the limiting surfaces (21).

3. The welding fixture for the blades according to claim 2, characterized in that the separation head (3) is block-shaped and fixedly connected with the limiting surface (21), the separation head (3) is perpendicular to the limiting surface (21), and a limiting step (4) is formed between the upper side of the separation head (3) and the upper limiting surface (211) and between the lower side of the separation head (3) and the lower limiting surface (212).

4. The welding fixture of inserts according to any of the claims 1 to 3, characterized in that the welding fixture further comprises a slide rail (5) arranged towards the clamping table (1), a slide (6) is slidably connected to the slide rail (5), and the slide (6) is connected to the stop member (2).

5. The welding fixture of blade according to claim 4, characterized in that the welding fixture further comprises a follower plate (7), the follower plate (7) is located between the sliding base (6) and the limiting member (2), the follower plate (7) is fixedly connected with both the sliding base (6) and the limiting member (2), the welding fixture further comprises a first telescopic cylinder (8), and a telescopic head of the first telescopic cylinder (8) is fixedly connected with the follower plate (7).

6. The blade welding fixture according to claim 5, characterized in that the welding fixture further comprises a pressure arm (9), said pressure arm (9) being capable of forming a second clamping gap with the upper side of the parting head (3).

7. The welding fixture for the blades according to claim 6, wherein a through hole (71) is formed in the follow-up plate (7), the welding fixture further comprises a second telescopic cylinder (10), a telescopic head of the second telescopic cylinder (10) penetrates through the through hole (71), the pressing arm (9) is located above the follow-up plate (7), and the pressing arm (9) is hinged to the telescopic head of the second telescopic cylinder (10).

8. The blade welding fixture according to claim 2 or 3, characterized in that a positioning pin (11) is arranged on the clamping table (1), the positioning pin (11) is located between two opposite limiting surfaces (21), and a guide head (12) in the shape of a truncated cone is arranged at one end of the positioning pin (11) away from the clamping table (1).