阅读说明：本技术 一种零件表面喷漆用的翻转定位工装和方法 (Overturning positioning tool and method for part surface paint spraying ) 是由 李森 余亮 叶潇兵 谢伟 刘超 杨博 吴学阳 于 2021-07-26 设计创作，主要内容包括：本发明属于零件表面喷漆技术领域,具体涉及一种零件表面喷漆用的翻转定位工装和方法,包括移动支架和装挂框和至少两个支架定位装置；移动支架包括工装底座,工装底座顶部垂直设置有两根相同的支撑杆,工装底座的底部布设有滑轮单元；装挂框与两根支撑杆旋转连接；装挂框上设置有装挂钩；装挂框的至少一侧设置有挂框定位装置。本技术方案通过设置支架定位装置以固定喷涂工位,确保了每次装夹位置的一致性,即可通过定位插销实现基于定位工装固定作用下零件的快速重复定位,定位采用了以点定面的原理,定位方式简单方便,在确保零件的喷涂质量和机器人运行安全性的条件下,确保了程序的重复使用。(The invention belongs to the technical field of part surface paint spraying, and particularly relates to a turnover positioning tool and a turnover positioning method for part surface paint spraying, wherein the turnover positioning tool comprises a movable support, a hanging frame and at least two support positioning devices; the movable support comprises a tool base, two identical support rods are vertically arranged at the top of the tool base, and a pulley unit is arranged at the bottom of the tool base; the hanging frame is rotationally connected with the two support rods; the hanging frame is provided with a hanging hook; at least one side of the hanging frame is provided with a hanging frame positioning device. This technical scheme has ensured the uniformity of clamping position at every turn through setting up support positioner with fixed spraying station, can realize based on the quick repeated location of location frock fixed action down part through the location bolt, and the location has adopted the principle with some fixed surfaces, and the locate mode is simple and convenient, under the spraying quality of ensureing the part and the condition of robot operation security, has ensured the used repeatedly of procedure.)

1. A turnover positioning tool for spraying paint on the surface of a part is characterized by comprising a movable bracket (1), a hanging frame (3) and at least two bracket positioning devices (6);

the support positioning device (6) comprises a positioning bolt (6.1) and a positioning seat (6.2) installed on the ground, and a slot (6.3) matched with the positioning bolt (6.1) is formed in the top of the positioning seat (6.2);

the movable support (1) comprises a tool base (1.1), and at least two bolt holes (1.2) for placing positioning bolts (6.1) vertically penetrate through the tool base (1.1); the top of the tool base (1.1) is vertically provided with two same support rods (1.3), the two support rods (1.3) are respectively provided with a hanging frame connecting piece (2), and the hanging frame connecting pieces (2) on the two support rods (1.3) are mutually symmetrical; a pulley unit (1.4) is arranged at the bottom of the tool base (1.1);

the hanging frame (3) is of a rectangular structure, the two sides of the hanging frame (3) are provided with bracket connecting pieces (4), and the two bracket connecting pieces (4) are respectively matched with the two hanging frame connecting pieces (2) to ensure that the hanging frame (3) is rotatably connected with the two support rods (1.3); a plurality of mounting hooks (5) for fixing parts are arranged on the mounting and hanging frame (3);

at least one side of the hanging frame (3) is provided with a hanging frame positioning device (7), the hanging frame positioning device (7) is provided with a socket (7.1) and a positioning disc (7.2); the top of a support rod (1.3) of the socket (7.1) is fixedly connected, an insert rod (7.4) penetrates through the axis of the socket (7.1), and the insert rod (7.4) is axially and movably connected with the socket (7.1); the positioning disc (7.2) and the support connecting piece (4) are coaxially arranged, and a plurality of positioning holes (7.3) used for being matched with the inserted rods (7.4) are arranged on the positioning disc (7.2) at intervals around the center of the positioning disc (7.2).

2. The turnover positioning tool for painting the surface of the part as claimed in claim 1, wherein: the hanging frame (3) comprises a rectangular frame body (3.1) and a moving beam (3.2), and two ends of the moving beam (3.2) are respectively connected with two parallel edges of the rectangular frame body (3.1) in a sliding manner; the moving beam (3.2) and the edge above the rectangular frame body (3.1) are respectively provided with a hook (5).

3. The turnover positioning tool for painting the surface of the part as claimed in claim 2, wherein: the movable beam (3.2) is a cross beam, and two ends of the cross beam are respectively connected with two side edges of the rectangular frame body (3.1) in a sliding mode.

4. The turnover positioning tool for painting the surface of the part as claimed in claim 2, wherein: the movable beams (3.2) are two vertical beams which are parallel to each other, and two ends of each vertical beam are respectively connected with the upper edge and the lower edge of the rectangular frame body (3.1) in a sliding mode.

5. The turnover positioning tool for painting the surface of the part as claimed in claim 2, wherein: and two ends of the movable beam (3.2) are provided with pre-tightening bolts (3.3).

6. The turnover positioning tool for painting the surface of the part as claimed in claim 1, wherein: the pulley unit (1.4) comprises four pulley pieces which are arranged in a rectangular state, and the pulley pieces are full-rotation pulley pieces (1.4.1).

7. The turnover positioning tool for painting the surface of the part as claimed in claim 1, wherein: the bracket connecting piece (4) comprises a connecting disc (4.1) welded on the hanging frame (3), and a connecting cylinder (4.2) is integrally arranged on the connecting disc (4.1); hang frame connecting piece (2) including being used for connecting plate (2.1) be connected with the support column, be provided with on connecting plate (2.1) be used for with connect disc (4.1) complex hollow outer cylinder (2.2), hollow inner cylinder (2.3) of hollow outer cylinder (2.2) are coaxially provided with to be used for with connecting cylinder (4.2) complex.

8. A turnover positioning method for spraying paint on the surface of a part is characterized by comprising the steps of arranging a turnover positioning device and installing the part;

the laying, overturning and positioning device comprises the following steps:

s11, arranging a movable bracket (1) with a bolt hole (1.2) based on the supporting requirement and the moving requirement of the part;

s12, setting a hanging frame (3) based on the clamping requirement of the part, and arranging a hanging hook (5) for fixing the part on the hanging frame (3);

s13, setting a rotary connecting piece based on the turning requirement of the part, and enabling the hanging frame (3) and the movable bracket (1) to be in rotary connection through the rotary connecting piece;

s14, based on the fixing state of the part needed when the part is painted, arranging a hanging frame positioning device (7) on the movable support (1) and the hanging frame (3);

s15, setting at least two support positioning devices (6) based on the position restoration requirement after the part is moved, wherein each positioning device comprises a positioning bolt (6.1) and a positioning seat (6.2);

s16, after the position of the movable support (1) is determined, under the condition that the support positioning device (6) corresponds to the bolt holes (1.2) one by one, fixing the positioning seat (6.2) on the ground below the bolt holes (1.2), and inserting the positioning bolts (6.1) into the positioning seat (6.2) after penetrating through the bolt holes (1.2);

the part mounting comprises the following steps:

s21, fixing the hanging frame (3) through the hanging frame positioning device (7);

and S22, placing the part in the hanging frame (3), and fixing the part in at least two directions through the hanging hook (5).

9. A method of flip-flop positioning for painting a surface of a part as claimed in claim 8, wherein: the hanging frame (3) comprises a rectangular frame body (3.1) and a moving beam (3.2), two ends of the moving beam (3.2) are respectively connected with two parallel edges of the rectangular frame body (3.1) in a sliding mode, two ends of the moving beam (3.2) are provided with pre-tightening bolts (3.3), and hanging hooks (5) are respectively distributed on the moving beam (3.2) and the upper edge of the rectangular frame body (3.1); in step S22, the fixing part includes the following steps:

s22-1, firstly, preliminarily fixing the parts through the hook (5) of the hook (5) on the upper edge of the rectangular frame body (3.1);

s22-2, adjusting the movable beam (3.2) according to the size of the part until the hook (5) on the movable beam (3.2) meets the requirement of fixing the part;

and S22-3, adjusting the pre-tightening bolts (3.3) to relatively fix the movable beam (3.2) and the rectangular frame body (3.1).

Technical Field

The invention belongs to the technical field of part surface paint spraying, and particularly relates to a turnover positioning tool and a turnover positioning method for part surface paint spraying.

Background

At present, most of shell structural members of vehicles and some mechanical equipment are made of steel, and the shell structural members belong to outdoor articles and are easy to be corroded by acid and alkali in contact with rainwater, acid in air and the like, so that the surfaces of the corresponding structural members need to be painted, the structural members are resistant to acid and alkali, and the service lives of the vehicles and the mechanical equipment are prolonged.

With the continuous development of the science and technology field, the operation of spraying paint on the surface of the part is also gradually automated, namely, the mode of spraying paint on the part by adopting a robot exists in the field of mechanical production. At present, the following problems exist in the painting by adopting a robot:

1) in the process of automatically spraying parts by a robot, in order to ensure the repeated use of a program, the positions of the parts for clamping each time must be relatively consistent, otherwise, the coating thickness is not uniform or the surface quality problem is caused, and even more, the robot can collide with the parts to damage the parts;

2) part of parts need double-sided spraying, and the parts are overturned by adopting a tool dragging mode, and the parts need to be repositioned by spending time.

Disclosure of Invention

The invention aims to solve the problem that a program cannot be repeatedly practical due to the fact that parts cannot be repeatedly positioned in the automatic paint spraying process, can realize the fixation and the turnover of the parts, and has strong practical value and application prospect for completing the positioning of the parts in the automatic paint spraying process of a robot.

The method is realized by the following technical scheme:

a turnover positioning tool for spraying paint on the surface of a part comprises a movable bracket, a hanging frame and at least two bracket positioning devices; the bracket positioning device comprises a positioning bolt and a positioning seat for being mounted on the ground, and a slot for being matched with the positioning bolt is formed in the top of the positioning seat; the movable support comprises a tool base, and at least two bolt holes for placing positioning bolts vertically penetrate through the tool base; the top of the tool base is vertically provided with two same support rods, the two support rods are respectively provided with a hanging frame connecting piece, and the hanging frame connecting pieces on the two support rods are symmetrical; the bottom of the tool base is provided with a pulley unit; the hanging frame is of a rectangular structure, support connecting pieces are arranged on two sides of the hanging frame, and the two support connecting pieces are respectively matched with the two hanging frame connecting pieces to enable the hanging frame to be rotatably connected with the two supporting rods; the hanging frame is provided with a plurality of hanging hooks for fixing parts; at least one side of the hanging frame is provided with a hanging frame positioning device, a hanging frame positioning device socket and a positioning disc; the top of the socket supporting rod is fixedly connected, an inserting rod penetrates through the axis of the socket, and the inserting rod is axially and movably connected with the socket; the positioning disc and the support connecting piece are coaxially arranged, and a plurality of positioning holes used for being matched with the inserted rod are arranged on the positioning disc at intervals around the center of the positioning disc.

Preferably, the hanging frame comprises a rectangular frame body and a movable beam, and two ends of the movable beam are respectively connected with two parallel edges of the rectangular frame body in a sliding manner; the moving beam and the edge above the rectangular frame are respectively provided with a hook.

Preferably, the movable beam is a cross beam, and two ends of the cross beam are respectively connected with two side edges of the rectangular frame body in a sliding manner.

Preferably, the movable beam is two vertical beams parallel to each other, and two ends of each vertical beam are slidably connected with the upper edge and the lower edge of the rectangular frame body respectively.

Preferably, two ends of the movable beam are provided with pre-tightening bolts.

Preferably, the pulley unit comprises four pulley members which are arranged in a rectangular state, and the pulley members are full-revolving pulley members.

Preferably, the bracket connecting piece comprises a connecting disc welded on the hanging frame, and a connecting cylinder is integrally arranged on the connecting disc; the hanging frame connecting piece comprises a connecting plate used for being connected with the supporting column, a hollow outer cylinder used for being matched with the connecting disc is arranged on the connecting plate, and a hollow inner cylinder used for being matched with the connecting cylinder is coaxially arranged inside the hollow outer cylinder.

Based on the turnover positioning tool for spraying paint on the surface of the part, the technical scheme discloses a turnover positioning method for spraying paint on the surface of the part, which is characterized by comprising the steps of arranging a turnover positioning device and installing the part;

the laying, overturning and positioning device comprises the following steps:

s11, arranging a movable bracket with a bolt hole based on the supporting requirement and the moving requirement of the part;

s12, setting a hanging frame based on the clamping requirement of the part, and arranging a hanging hook for fixing the part on the hanging frame;

s13, setting a rotary connecting piece based on the turning requirement of the part, and enabling the hanging frame and the movable support to be rotatably connected through the rotary connecting piece;

s14, based on the fixed state of the part needed when it is painted, arranging a hanging frame positioning device on the movable bracket and the hanging frame;

s15, setting at least two bracket positioning devices based on the position restoration requirement after the part is moved, wherein each positioning device comprises a positioning bolt and a positioning seat;

s16, after the position of the movable support is determined, the positioning seat is fixed on the ground below the bolt hole under the condition that the support positioning device is in one-to-one correspondence with the bolt hole, and the positioning bolt penetrates through the bolt hole and then is inserted into the positioning seat;

the part mounting comprises the following steps:

s21, fixing the hanging frame through the hanging frame positioning device;

and S22, placing the part in the hanging frame, and fixing the part in at least two directions through the hanging hook.

Preferably, the hanging frame comprises a rectangular frame body and a movable beam, two ends of the movable beam are respectively connected with two parallel edges of the rectangular frame body in a sliding mode, two ends of the movable beam are provided with pre-tightening bolts, and hanging hooks are respectively distributed on the movable beam and the upper edge of the rectangular frame body; in step S22, the fixing part includes the following steps:

s22-1, firstly, preliminarily fixing the part through a hook on the edge of the upper part of the rectangular frame body;

s22-2, adjusting the movable beam according to the size of the part until the hook on the movable beam meets the requirement of fixing the part;

and S22-3, adjusting the pre-tightening bolts to relatively fix the movable beam and the rectangular frame.

The beneficial effect that this technical scheme brought:

1) this technical scheme has ensured the uniformity of clamping position at every turn through setting up support positioner with fixed spraying station, can realize based on the quick repeated location of location frock fixed action down part through the location bolt, and the location has adopted the principle with some fixed surfaces, and the locate mode is simple and convenient, under the spraying quality of ensureing the part and the condition of robot operation security, has ensured the used repeatedly of procedure.

2) This technical scheme still convenient to use specifically is: under the auxiliary action of the pulley unit, the positioning tool can be easily moved to a part stacking position and a position to be dried after paint spraying, so that the transportation work of the part during the processing period is simplified; the parts can be easily and quickly installed and mounted through the hook. To the part that needs the upper spray, this technical scheme's dress hangs the frame and has rotation function, and convenient operation is simple, and for prior art, this technical scheme upset is fast, and based on the existence of locating hole, can realize the dress and hang the quick location of frame and part, has improved work efficiency greatly.

3) The technical scheme has better universality, and is specifically represented as follows: in the clamping process, the movable beam can be adjusted to fix parts with different sizes, the parts are prevented from shaking to influence the spraying quality in the spraying process, pre-tightening bolts are arranged at two ends of the movable beam, after the position of the movable beam is determined, the movable beam and the rectangular frame can be relatively fixed by adjusting the pre-tightening bolts, and the reliability of installing the parts is further ensured.

4) The pulley unit comprises four pulley pieces which are arranged in a rectangular state, so that the stability of the positioning tool is ensured, the pulley pieces are prevented from collapsing due to spraying impact, the pulley pieces are full-circle-turning pulley pieces, the assembly in positioning is convenient to move in a non-directional mode, and the positioning tool is further convenient to move to a spraying station (namely, quick repeated positioning) which is determined through the support positioning device for the first time.

Drawings

FIG. 1 is a schematic structural view of a positioning tool according to a basic scheme;

FIG. 2 is a schematic structural view of a positioning tool in a preferred embodiment;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B of FIG. 2;

FIG. 5 is an enlarged view of the structure of FIG. 2 at C;

FIG. 6 is an enlarged view of the structure of FIG. 2 at D;

FIG. 7 is a schematic view of a mobile carriage configuration;

FIG. 8 is a schematic view of a hook mounting structure;

FIG. 9 is a schematic view of a disassembled structure of a bracket connecting piece and a hanging frame connecting piece;

FIG. 10 is a schematic view of a walking beam configuration;

FIG. 11 is a schematic view of a rectangular frame structure;

FIG. 12 is a schematic view of a positioning pin;

in the figure:

1. moving the support; 1.1, a tool base; 1.2, bolt holes; 1.3, supporting rods; 1.4, a pulley unit; 1.4.1, a full-rotation pulley piece; 2. a hanging frame connecting piece; 2.1, connecting plates; 2.2, hollow outer cylinder; 2.3, hollow inner cylinder; 3. mounting a hanging frame; 3.1, a rectangular frame body; 3.2, moving the beam; 3.3, pre-tightening the bolt; 4. a bracket connection member; 4.1, connecting the discs; 4.2, connecting the cylinders; 5. installing a hook; 6. a bracket positioning device; 6.1, positioning a bolt; 6.2, positioning seats; 6.3, inserting grooves; 7. a hanging frame positioning device; 7.1, a socket; 7.2, positioning a disc; 7.3, positioning holes; 7.4, inserting the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are for explaining the present invention and not for limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The embodiment discloses a turnover positioning tool for painting the surface of a part, which comprises a movable bracket 1, a hanging frame 3 and at least two bracket positioning devices 6. The support positioning device 6 comprises a positioning bolt 6.1 and a positioning seat 6.2 for being mounted on the ground, and a slot 6.3 for being matched with the positioning bolt 6.1 is formed in the top of the positioning seat 6.2; the movable support 1 comprises a tool base 1.1, and at least two bolt holes 1.2 for placing positioning bolts 6.1 vertically penetrate through the tool base 1.1; the top of the tool base 1.1 is vertically provided with two same support rods 1.3, the two support rods 1.3 are respectively provided with a hanging frame connecting piece 2, and the hanging frame connecting pieces 2 on the two support rods 1.3 are mutually symmetrical; the bottom of the tool base 1.1 is provided with a pulley unit 1.4; the hanging frame 3 is of a rectangular structure, the two sides of the hanging frame 3 are provided with bracket connecting pieces 4, and the two bracket connecting pieces 4 are respectively matched with the two hanging frame connecting pieces 2, so that the hanging frame 3 is rotatably connected with the two support rods 1.3; the hanging frame 3 is provided with a plurality of hanging hooks 5 for fixing parts; at least one side of the hanging frame 3 is provided with a hanging frame positioning device 7, a socket 7.1 of the hanging frame positioning device 7 and a positioning disc 7.2; the top of the support rod 1.3 of the socket 7.1 is fixedly connected, an inserting rod 7.4 penetrates through the axis of the socket 7.1, and the inserting rod 7.4 is axially and movably connected with the socket 7.1; the positioning disk 7.2 and the support connecting piece 4 are coaxially arranged, and a plurality of positioning holes 7.3 matched with the inserted rods 7.4 are formed in the positioning disk 7.2 at intervals around the center of the positioning disk 7.2.

In the in-process of in-service use, remove the location frock to the part department of stacking, install the part to the location frock on, specifically be, through adorn couple 5 with part detachable be fixed in dress hang frame 3 on, then under pulley unit 1.4's auxiliary action, will be equipped with the location frock of part and remove to the spraying station that spraying work goes on (the position that the location frock needs to be laid promptly) to the location frock is ajusted according to the state of robot. Then the support positioning devices 6 correspond to the bolt holes 1.2 one by one, the positioning seats 6.2 of the support positioning devices 6 are placed below the bolt holes 1.2 and fixed on the ground, the positioning bolts 6.1 of the support positioning devices 6 penetrate through the bolt holes 1.2 and are inserted into the slots 6.3 of the positioning seats 6.2, and at least two support positioning devices 6 are adopted to position the movable support 1 of the positioning tool based on the principle of two-point positioning and one-surface, preferably 4 support positioning devices 6 are adopted to position, so that the positioning accuracy and reliability are ensured. In order to overcome the impact force existing during the spraying process, the hanging frame positioning device 7 is used for temporarily fixing the hanging light, specifically, the hanging frame 3 is rotated to an angle convenient for spraying, the inserting rod 7.4 is inserted into the positioning hole 7.3 by controlling the axial movement of the inserting rod 7.4, and thus the fixing of the hanging frame 3 is realized. Then, the robot can be started to spray the parts, the robot can be suspended when the current spraying of the parts is finished, then the inserting rod 7.4 is controlled to axially move, the inserting rod 7.4 is made to exit from the positioning hole 7.3, the hanging frame 3 is rotated to turn over the parts, the hanging frame 3 is rotated to an angle convenient for the spraying work, the inserting rod 7.4 is made to be inserted into the positioning hole 7.3 by controlling the inserting rod 7.4 to axially move so as to fix the hanging frame 3, the robot is started again to spray the parts until the spraying work is finished, and the robot is closed. And drawing out all the positioning bolts 6.1 from the corresponding slots 6.3 and the bolt holes 1.2, moving the positioning tool, transporting the parts subjected to spraying to a position to be dried, disassembling the parts, moving the positioning frame to a part stacking position, and continuously installing the next part, wherein in order to improve the working efficiency, after one positioning tool leaves the spraying station, the other positioning tool provided with the parts can be moved to the spraying station, and the positioning seat 6.2 which is fixed previously is used.

This technical scheme has ensured the uniformity of clamping position at every turn through setting up support positioner 6 with fixed spraying station, can realize based on the quick repeated location of part under the fixed action of location frock through location bolt 6.1, and the location has adopted the principle with the point face, and the locate mode is simple and convenient, under the condition of the spraying quality of ensureing the part and the operation security of robot, has ensured the used repeatedly of procedure. In addition, this technical scheme still convenient to use specifically is: under the auxiliary action of the pulley unit 1.4, the positioning tool can be easily moved to a part stacking position and a paint spraying position to be dried, so that the transportation work of the parts during the processing period is simplified; the parts can be easily and quickly mounted and installed by installing the hook 5. To the part that needs the spraying above, this technical scheme's dress hangs frame 3 has rotation function, and convenient operation is simple, and for prior art, this technical scheme upset is fast, and based on locating hole 7.3's existence, can realize adorning the quick location of hanging frame 3 and part, has improved work efficiency greatly.

Example 2

The embodiment discloses an overturning and positioning tool for painting the surface of a part, which is a preferred embodiment of the invention, namely in the embodiment 1, a hanging frame 3 comprises a rectangular frame body 3.1 and a movable beam 3.2, and two ends of the movable beam 3.2 are respectively connected with two parallel edges of the rectangular frame body 3.1 in a sliding manner; the moving beam 3.2 and the edge above the rectangular frame 3.1 are respectively provided with a hook 5. The technical scheme has better universality, and is specifically represented as follows: in the clamping process, the movable beam 3.2 is adjusted to fix parts with different sizes, and the spraying quality is prevented from being influenced by the shaking of the parts in the spraying process. Furthermore, two ends of the movable beam 3.2 are provided with pre-tightening bolts 3.3, after the position of the movable beam 3.2 is determined, the movable beam 3.2 and the rectangular frame 3.1 can be relatively fixed by adjusting the pre-tightening bolts, and the reliability of mounting parts is further ensured.

Further, the movable beam 3.2 may be a cross beam, and two ends of the cross beam are slidably connected to two side edges of the rectangular frame 3.1, respectively. In the use, move the crossbeam up and down, adjust the distance between crossbeam and the 3.1 top edge of rectangle framework, can adapt to the installation of not unidimensional part.

Further, the walking beam 3.2 is two vertical beams that are parallel to each other, and the both ends of vertical beam respectively with rectangle framework 3.1 top edge and below edge sliding connection. In actual use, the distance between the two vertical beams is adjusted by sliding the two vertical beams left and right, so that the mounting of parts with different sizes can be adapted.

Example 3

The embodiment discloses a turnover positioning tool for painting the surface of a part, which is a preferred embodiment of the invention, namely in embodiment 1, a pulley unit 1.4 comprises four pulley pieces which are arranged in a rectangular state, so that the stability of the positioning tool is ensured, the pulley pieces are prevented from collapsing due to spraying impact, the pulley pieces are full-circle-turning pulley pieces 1.4.1, the positioning device can be conveniently moved in a non-directional manner, and the positioning tool can be further conveniently and quickly moved to a spraying station which is firstly determined by a support positioning device 6 (namely, quick repeated positioning).

Further, the bracket connecting piece 4 comprises a connecting disc 4.1 welded on the hanging frame 3, and a connecting cylinder 4.2 is integrally arranged on the connecting disc 4.1; hang frame connecting piece 2 including being used for the connecting plate 2.1 of being connected with the support column, be provided with on connecting plate 2.1 be used for with connecting disc 4.1 complex hollow outer cylinder 2.2, hollow outer cylinder 2.2's inside is provided with coaxially and is used for with connecting cylinder 4.2 complex hollow inner cylinder 2.3. This technical scheme is under the condition of realizing rotatory function, ensures connection structure's fastness.

Example 4

The embodiment discloses a turnover positioning method for painting the surface of a part, which is a preferred embodiment of the invention and comprises the steps of arranging a turnover positioning device and installing the part;

the laying, overturning and positioning device comprises the following steps:

s11, arranging a movable bracket 1 with a bolt hole 1.2 based on the supporting requirement and the moving requirement of the part;

s12, setting a hanging frame 3 based on the clamping requirement of the part, and arranging a hanging hook 5 for fixing the part on the hanging frame 3;

s13, setting a rotary connecting piece based on the turning requirement of the part, and enabling the hanging frame 3 and the movable support 1 to be in rotary connection through the rotary connecting piece;

s14, based on the fixing state of the part needed when the part is painted, arranging a hanging frame positioning device 7 on the movable bracket 1 and the hanging frame 3;

s15, setting at least two support positioning devices 6 based on the position restoration requirement after the part is moved, wherein each positioning device comprises a positioning bolt 6.1 and a positioning seat 6.2;

s16, after the position of the mobile bracket 1 is determined, the positioning seat 6.2 is fixed on the ground under the bolt hole 1.2 under the condition that the bracket positioning device 6 corresponds to the bolt hole 1.2 one to one, and the positioning bolt 6.1 is inserted into the positioning seat 6.2 after passing through the bolt hole 1.2;

the part mounting comprises the following steps:

s21, fixing the hanging frame 3 through the hanging frame positioning device 7;

s22, placing the part in the hanging frame 3, and fixing the part in at least two directions through the hook 5; specifically, the hanging frame 3 comprises a rectangular frame body 3.1 and a moving beam 3.2, two ends of the moving beam 3.2 are respectively in sliding connection with two parallel edges of the rectangular frame body 3.1, two ends of the moving beam 3.2 are provided with pre-tightening bolts 3.3, and hanging hooks 5 are respectively distributed on the moving beam 3.2 and the edge above the rectangular frame body 3.1. Namely, the fixing part comprises the following steps:

s22-1, firstly, preliminarily fixing the parts through the hook 5 of the hook 5 on the upper edge of the rectangular frame 3.1;

s22-2, adjusting the movable beam 3.2 according to the size of the part until the hook 5 on the movable beam 3.2 meets the requirement of fixing the part;

s22-3, adjusting the pre-tightening bolts 3.3 to relatively fix the movable beam 3.2 and the rectangular frame 3.1.

This technical scheme has ensured the uniformity of clamping position at every turn through setting up support positioner 6 with fixed spraying station, can realize based on the quick repeated location of part under the fixed action of location frock through location bolt 6.1, and the location has adopted the principle with the point face, and the locate mode is simple and convenient, under the condition of the spraying quality of ensureing the part and the operation security of robot, has ensured the used repeatedly of procedure. In addition, this technical scheme still convenient to use specifically is: under the auxiliary action of the pulley unit 1.4, the positioning tool can be easily moved to a part stacking position and a paint spraying position to be dried, so that the transportation work of the parts during the processing period is simplified; the parts can be easily and quickly mounted and installed by installing the hook 5. To the part that needs the spraying above, this technical scheme's dress hangs frame 3 has rotation function, and convenient operation is simple, and for prior art, this technical scheme upset is fast, and based on locating hole 7.3's existence, can realize adorning the quick location of hanging frame 3 and part, has improved work efficiency greatly.