Automatic hanging device for part to be sprayed of spraying assembly line

Abstract

The invention relates to the technical field of spraying assembly line equipment, and discloses a to-be-sprayed part automatic hanging device of a spraying assembly line, the to-be-sprayed part automatic hanging device of the spraying assembly line comprises a supporting mechanism, the supporting mechanism comprises a supporting frame, the bottom of the supporting frame is fixedly connected with supporting legs, and the supporting legs are fixedly connected with the bottom of the supporting frame. A groove is formed in the inner wall of the supporting frame, a first connecting frame is fixedly connected to the inner wall of the supporting frame, and after the to-be-sprayed parts in different shapes are clamped and fixed through the clamping assembly, the to-be-sprayed parts are adjusted and positioned through the adjusting mechanism according to the shapes and positions of the to-be-sprayed parts; the hanging clamp is prevented from damaging the to-be-sprayed part, the possibility that scratches, indentations or pits appear on the surface of the to-be-sprayed part is reduced, and therefore the appearance quality and attractiveness of a final product are improved.

Description

Technical Field

[0001] The invention relates to the technical field of spraying line equipment, in particular to an automatic hanging device for parts to be sprayed on a spraying line. Background Art

[0002] In the spraying industry, the traditional method of hanging parts to be sprayed mostly relies on manual operation, which is inefficient and prone to errors. With the development of automation technology, the automatic hanging of parts to be sprayed on the spraying line has become a research focus.

[0003] The patent application with application number CN202110717015.X discloses an automatic hanging device for parts to be sprayed in a spraying line, which includes a frame, a clamping mechanism, a hanging mechanism and a conveying device. The clamping mechanism is used to elastically clamp the two free ends of the elastic hook in the two hanging holes on the parts to be sprayed; the hanging mechanism is used to push the hook on the free end of the hanging pin for hanging the parts to be sprayed to be hung with the hanging hook on the material transporting mechanism; the conveying device is arranged between the material transporting mechanism and the frame, and is provided with a positioning tool for vertically connecting the parts to be sprayed. The conveying device can transport the parts to be sprayed to the clamping mechanism, and can transport the parts to be sprayed with the elastic hooks hung on the clamping mechanism to the hanging mechanism.

[0004] To sum up, when hanging parts of different shapes to be sprayed, it is necessary to adjust the positioning of the hanging fixture according to the shape and position of the sprayed parts to avoid damage to the parts to be sprayed by the hanging fixture, which may cause scratches, indentations or pits on the surface of the sprayed parts, affecting the appearance quality of the final product and reducing its aesthetics.

[0005] Therefore, we proposed an automatic hanging device for the parts to be sprayed in the spraying line. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an automatic hanging device for parts to be sprayed in a spraying line to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an automatic hanging device for a workpiece to be sprayed on a spraying line, comprising a supporting mechanism, the supporting mechanism comprising a supporting frame, a supporting foot is fixedly connected to the bottom of the supporting frame, a groove is provided on the inner wall of the supporting frame, a first connecting frame is fixedly connected to the inner wall of the supporting frame, and further comprising:

[0008] The adjusting mechanism includes a first sliding frame slidably connected to the supporting frame, a motor is fixedly connected to the top outer wall of the first sliding frame, the output end of the motor passes through the first sliding frame and is fixedly connected to a driving wheel, the outer surface of the driving wheel is slidably connected to the inner wall of the groove, the outer wall of the first sliding frame is fixedly connected to a fixing frame, a through hole is provided on the outer surface of the fixing frame on a side away from the first sliding frame, a second connecting frame is provided on the top of the fixing frame, the second connecting frame is rotatably connected to the fixing frame through a rotating shaft, a first hydraulic rod is fixedly connected to the inner wall of the fixing frame, and an auxiliary component is provided at the output end of the first hydraulic rod.

[0009] According to the above technical solution, the auxiliary component includes a second sliding frame fixedly connected to the first hydraulic rod, the inner wall of the second sliding frame on the side away from the first hydraulic rod is fixedly connected to the second hydraulic rod, the top output end of the second hydraulic rod is provided with a clamping assembly, the bottom output end of the second hydraulic rod is fixedly connected to the first fixed block, the inner wall of the end of the second sliding frame away from the second hydraulic rod is rotatably connected to an auxiliary wheel through a rotating shaft, the outer surface of the auxiliary wheel is slidably connected to the inner wall of the groove, and the first hydraulic rod clamps the parts to be sprayed with different widths by adjusting the spacing between the first sliding frames.

[0010] According to the above technical solution, a second fixed block is provided on the outer wall of the first fixed block, and an arc-shaped spring plate is fixedly connected to the top of the second fixed block. The end of the arc-shaped spring plate away from the second fixed block is fixedly connected to the first fixed block. The arc-shaped spring plate has a certain elasticity and is used to support the bottom of the part to be sprayed.

[0011] According to the above technical solution, the outer wall of the second fixed block on one side close to the first fixed block is fixedly connected with the first connecting shaft, the end of the first connecting shaft away from the first fixed block passes through the first fixed block and is fixedly connected with the first spring, the side of the first spring close to the second fixed block is fixedly connected to the first fixed block, and the first spring is used for resetting the second fixed block.

[0012] According to the above technical solution, the clamping assembly includes a third connecting frame fixedly connected to the second hydraulic rod, the third connecting frame is fixedly connected to a third fixed block at one end away from the second hydraulic rod, a force plate is provided on the outer wall of the third fixed block on the side away from the third connecting frame, and the inner wall of the third fixed block is rotatably connected to a rotating rod via a rotating shaft. When the force plate slides toward the side of the third fixed block, the force plate causes the rotating rod to flip at a certain angle via the rotating shaft, thereby clamping and fixing the part to be sprayed by the force plate and the clamping plate.

[0013] According to the above technical solution, there are two rotating rods, and the two rotating rods are symmetrically arranged with the central axis of the third fixed block as the center. The end of the rotating rod away from the third fixed block is rotatably connected to a clamping plate through a rotating shaft, and the outer wall of the clamping plate close to the rotating rod is fixedly connected to a third spring, and the end of the third spring away from the clamping plate is fixedly connected to the rotating rod. The contact angle between the clamping plate and the workpiece to be sprayed is adjusted by the third spring, thereby increasing the contact area with the outer wall of the workpiece to be sprayed.

[0014] According to the above technical solution, the inner wall of the force-bearing plate is slidably connected to the inner wall of the rotating rod through a rotating shaft, and the outer wall of the force-bearing plate on one side close to the third fixed block is fixedly connected with a second connecting shaft, and the end of the second connecting shaft away from the force-bearing plate passes through the third fixed block and is fixedly connected to the limiting block, and the second connecting shaft is used to improve the stability of the force-bearing plate during movement.

[0015] According to the above technical solution, the number of the second connecting shafts is two, and the two second connecting shafts are symmetrically arranged with the central axis of the limit block as the center. The end of the limit block close to the third fixed block is fixedly connected with a second spring, and the end of the second spring away from the limit block is fixedly connected to the third fixed block. The second spring is used for resetting the force plate.

[0016] Compared with the prior art, the present invention provides an automatic hanging device for parts to be sprayed on a spraying line, which has the following beneficial effects:

[0017] 1. The present invention provides an automatic hanging device for parts to be sprayed on a spraying line. After parts to be sprayed of different shapes are clamped and fixed by a clamping assembly, the adjustment mechanism is used to adjust and position the parts according to their shapes and positions, thereby preventing the hanging clamp from damaging the parts to be sprayed and reducing the possibility of scratches, indentations or pits on the surface of the parts to be sprayed, thereby improving the appearance quality and aesthetics of the final product.

[0018] 2. The present invention sets an adjustment mechanism and controls the distance between the clamping assemblies on both sides through the first hydraulic rod, so that the workpieces to be sprayed of different widths can be clamped and fixed. The motor drives the first sliding frame to slide along the outer wall of the support frame through the driving wheel, so that the adjustment mechanism slides along the support frame. By increasing the number of sliding adjustment mechanisms on the outer wall of the support frame, the hanging efficiency of the workpieces to be sprayed can be increased.

[0019] 3. The present invention sets an auxiliary component, through the first fixed block at the bottom of the second hydraulic rod, after the arc-shaped spring plate contacts the bottom of the workpiece to be sprayed, the arc-shaped spring plate pushes the second fixed block, thereby increasing the contact area between the arc-shaped spring plate and the bottom of the workpiece to be sprayed, thereby improving the stability of the workpiece to be sprayed when hanging.

[0020] 4. The present invention provides a clamping assembly. When hanging workpieces to be sprayed at different heights, the force plates on both sides are gradually brought closer together through the first hydraulic rod, the rotating rod is flipped through the force plate, and after the clamping plate contacts the outer wall of the workpiece to be sprayed, the workpiece to be sprayed is clamped and fixed by the force plate and the clamping plate. After the clamping assembly is raised to a suitable height through the second hydraulic rod, the hanging operation can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the first sliding frame of the present invention;

[0025] Figure 5 It is a schematic diagram of the auxiliary component and the clamping component structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the auxiliary component structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0028] Figure 8 For the present invention Figure 2 Schematic diagram of the enlarged structure of A.

[0029] In the figure: 1, support mechanism; 101, support frame; 102, groove; 103, first connecting frame; 104, supporting foot; 2, adjustment mechanism; 201, first sliding frame; 202, motor; 203, fixed frame; 204, through hole; 205, second connecting frame; 206, first hydraulic rod; 207, driving wheel; 208, auxiliary component; 2081, second sliding frame; 2082, second hydraulic rod; 2083, first fixed Block; 2084, second fixed block; 2085, arc spring plate; 2086, first connecting shaft; 2087, first spring; 2088, auxiliary wheel; 209, clamping assembly; 2091, third connecting frame; 2092, third fixed block; 2093, force plate; 2094, second connecting shaft; 2095, limit block; 2096, second spring; 2097, rotating rod; 2098, clamping plate; 2099, third spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1: See Figure 1-Figure 4 The present invention provides a technical solution: an automatic hanging device for a spraying line to be sprayed, comprising a support mechanism 1, the support mechanism 1 comprising a support frame 101, a support foot 104 is fixedly connected to the bottom of the support frame 101, a groove 102 is provided on the inner wall of the support frame 101, a first connecting frame 103 is fixedly connected to the inner wall of the support frame 101, and the first connecting frame 103 is used to improve the stability of the support frame 101, and also includes:

[0034] The adjusting mechanism 2 includes a first sliding frame 201 slidably connected to the supporting frame 101, a motor 202 is fixedly connected to the top outer wall of the first sliding frame 201, an output end of the motor 202 passes through the first sliding frame 201 and is fixedly connected to a driving wheel 207, the motor 202 can make the adjusting mechanism 2 as a whole slide along the outer wall of the supporting frame 101 through the driving wheel 207, the outer surface of the driving wheel 207 is slidably connected to the inner wall of the groove 102, the outer wall of the first sliding frame 201 is fixedly connected to a fixing frame 203, a through hole 204 is provided on the outer surface of the fixing frame 203 away from the first sliding frame 201, a second connecting frame 205 is arranged on the top of the fixing frame 203, the second connecting frame 205 is rotatably connected to the fixing frame 203 through a rotating shaft, the inner wall of the fixing frame 203 is fixedly connected to a first hydraulic rod 206, and an auxiliary component 208 is arranged at the output end of the first hydraulic rod 206.

[0035] The auxiliary component 208 includes a second sliding frame 2081 fixedly connected to the first hydraulic rod 206, a second hydraulic rod 2082 is fixedly connected to the inner wall of the second sliding frame 2081 away from the first hydraulic rod 206, a clamping assembly 209 is provided at the top output end of the second hydraulic rod 2082, and a first fixed block 2083 is fixedly connected to the bottom output end of the second hydraulic rod 2082. The first hydraulic rod 206 clamps the parts to be sprayed with different widths by adjusting the spacing between the first sliding frames 201. The inner wall of one end of the second sliding frame 2081 away from the second hydraulic rod 2082 An auxiliary wheel 2088 is rotatably connected via a rotating shaft, and the auxiliary wheel 2088 is used to improve the stability of the second sliding frame 2081, thereby improving the stability of the workpiece to be sprayed when it is clamped and hung. The outer surface of the auxiliary wheel 2088 is slidably connected to the inner wall of the groove 102. After the workpieces of different shapes to be sprayed are clamped and fixed by the clamping assembly 209, the adjustment mechanism 2 is used to adjust and position the workpiece according to the shape and position of the workpiece to be sprayed, so as to avoid damage to the workpiece to be sprayed by the hanging clamp and reduce the possibility of scratches, indentations or pits on the surface of the workpiece to be sprayed, thereby improving the appearance quality and aesthetics of the final product.

[0036] The working principle of this embodiment is as follows: when it is necessary to hang the parts to be sprayed on the spraying line, the first hydraulic rod 206 clamps and fixes the parts to be sprayed through the clamping assemblies 209 on both sides, and the motor 202 drives the support frame 101 to slide to the hanging area through the driving wheel 207, and then adjusts the height of the parts to be sprayed through the adjustment mechanism 2 to avoid damage to the parts to be sprayed by the hanging clamp and reduce the possibility of scratches, indentations or pits on the surface of the sprayed parts.

[0037] Example 2: Please refer to Figure 5-Figure 6 On the basis of the first embodiment, the present invention provides a technical solution: a second fixed block 2084 is arranged on the outer wall of the first fixed block 2083, and an arc-shaped spring plate 2085 is fixedly connected to the top of the second fixed block 2084. The arc-shaped spring plate 2085 has a certain elasticity and is used to support the bottom of the part to be sprayed. One end of the arc-shaped spring plate 2085 away from the second fixed block 2084 is fixedly connected to the first fixed block 2083.

[0038] The outer wall of the second fixed block 2084 on one side close to the first fixed block 2083 is fixedly connected with the first connecting shaft 2086, and the end of the first connecting shaft 2086 away from the first fixed block 2083 passes through the first fixed block 2083 and is fixedly connected with the first spring 2087. The first spring 2087 is used for the reset of the second fixed block 2084. The side of the first spring 2087 close to the second fixed block 2084 is fixedly connected to the first fixed block 2083. After the arc spring plate 2085 contacts the bottom of the part to be sprayed through the first fixed block 2083 at the bottom of the second hydraulic rod 2082, the arc spring plate 2085 pushes the second fixed block 2084, thereby increasing the contact area between the arc spring plate 2085 and the bottom of the part to be sprayed, thereby improving the stability of the part to be sprayed when hanging.

[0039] The working principle of this embodiment is as follows: when the first hydraulic rod 206 pushes the second sliding frame 2081, the auxiliary wheel 2088 connected to the inner wall of the second sliding frame 2081 is slidably connected to the groove 102 through the rotating shaft, so as to improve the stability of the second sliding frame 2081 when moving, and the arc spring plate 2085 is driven by the first fixed block 2083 at the bottom of the second hydraulic rod 2082 to contact the bottom of the workpiece to be sprayed. When the arc spring plate 2085 contacts the bottom of the workpiece to be sprayed, the arc spring plate 2085 pushes the second fixed block 2084, thereby increasing the contact area between the arc spring plate 2085 and the bottom of the workpiece to be sprayed, thereby supporting the workpiece to be sprayed from the bottom, thereby improving the stability of the workpiece to be sprayed after clamping.

[0040] Example 3: Please refer to Figure 7-Figure 8 On the basis of the first and second embodiments, the present invention provides a technical solution: the clamping assembly 209 includes a third connecting frame 2091 fixedly connected to the second hydraulic rod 2082, the third connecting frame 2091 is fixedly connected to the third fixed block 2092 at one end away from the second hydraulic rod 2082, the third fixed block 2092 is provided with a force plate 2093 on the outer wall of the side away from the third connecting frame 2091, the inner wall of the third fixed block 2092 is rotatably connected to the rotating rod 2097 through a rotating shaft, when the force plate 2093 slides toward the side of the third fixed block 2092, the force plate 2093 causes the rotating rod 2097 to flip at a certain angle through the rotating shaft, so that the sprayed parts are clamped and fixed by the force plate 2093 and the clamping plate 2098.

[0041] There are two rotating rods 2097, and the two rotating rods 2097 are symmetrically arranged with the central axis of the third fixed block 2092 as the center. The end of the rotating rod 2097 away from the third fixed block 2092 is rotatably connected to the clamping plate 2098 through a rotating shaft. The clamping plate 2098 adjusts the contact angle with the part to be sprayed through the third spring 2099, thereby increasing the contact area with the outer wall of the part to be sprayed. The outer walls of the force-bearing plate 2093 and the clamping plate 2098 are both set to rubber material to prevent scratches on the outer wall of the part to be sprayed. The outer wall of the clamping plate 2098 on one side close to the rotating rod 2097 is fixedly connected to the third spring 2099, and the end of the third spring 2099 away from the clamping plate 2098 is fixedly connected to the rotating rod 2097.

[0042] The inner wall of the force-bearing plate 2093 is slidably connected to the inner wall of the rotating rod 2097 through a rotating shaft. The outer wall of the force-bearing plate 2093 on one side close to the third fixed block 2092 is fixedly connected with a second connecting shaft 2094. The second connecting shaft 2094 is used to improve the stability of the force-bearing plate 2093 during movement. The end of the second connecting shaft 2094 away from the force-bearing plate 2093 passes through the third fixed block 2092 and is fixedly connected to the limiting block 2095.

[0043] There are two second connecting shafts 2094, and the two second connecting shafts 2094 are symmetrically arranged with the central axis of the limit block 2095 as the center. The end of the limit block 2095 close to the third fixed block 2092 is fixedly connected with a second spring 2096, and the second spring 2096 is used for resetting the force plate 2093. The end of the second spring 2096 away from the limit block 2095 is fixedly connected to the third fixed block 2092.

[0044] The working principle of this embodiment is: when hanging operations are performed on parts to be sprayed at different heights, the force plates 2093 on both sides are gradually brought closer together through the first hydraulic rod 206, and the force plates 2093 slide toward the third fixed block 2092 after contacting the parts to be sprayed, and the force plates 2093 flip the rotating rods 2097 through the rotating shaft, and when the clamping plates 2098 contact the outer wall of the parts to be sprayed, the parts to be sprayed are clamped and fixed by the force plates 2093 and the clamping plates 2098, and after the clamping assembly 209 is raised to a suitable height by the second hydraulic rod 2082, the hanging operation can be performed.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic hanging device for a workpiece to be sprayed on a spraying line, comprising a support mechanism (1), the support mechanism (1) comprising a support frame (101), a support foot (104) fixedly connected to the bottom of the support frame (101), a groove (102) formed on the inner wall of the support frame (101), a first connecting frame (103) fixedly connected to the inner wall of the support frame (101), characterized in that: Also included are: The adjusting mechanism (2) comprises a first sliding frame (201) slidably connected to a supporting frame (101); a motor (202) is fixedly connected to the top outer wall of the first sliding frame (201); an output end of the motor (202) passes through the first sliding frame (201) and is fixedly connected to a driving wheel (207); an outer surface of the driving wheel (207) is slidably connected to an inner wall of a groove (102); a fixing frame (203) is fixedly connected to the outer wall of the first sliding frame (201); a through hole (204) is provided on the outer surface of a side of the fixing frame (203) away from the first sliding frame (201); a second connecting frame (205) is provided on the top of the fixing frame (203); the second connecting frame (205) is rotatably connected to the fixing frame (203) via a rotating shaft; a first hydraulic rod (206) is fixedly connected to the inner wall of the fixing frame (203); an auxiliary component (208) is provided at the output end of the first hydraulic rod (206).

2. The automatic hanging device for parts to be sprayed in a spraying line according to claim 1 is characterized in that: The auxiliary component (208) comprises a second sliding frame (2081) fixedly connected to the first hydraulic rod (206); the inner wall of the second sliding frame (2081) at one side away from the first hydraulic rod (206) is fixedly connected to the second hydraulic rod (2082); the top output end of the second hydraulic rod (2082) is provided with a clamping assembly (209); the bottom output end of the second hydraulic rod (2082) is fixedly connected to the first fixed block (2083); the inner wall of one end of the second sliding frame (2081) away from the second hydraulic rod (2082) is rotatably connected to an auxiliary wheel (2088) via a rotating shaft; the outer surface of the auxiliary wheel (2088) is slidably connected to the inner wall of the groove (102).

3. The automatic hanging device for parts to be sprayed in a spraying line according to claim 2 is characterized in that: A second fixing block (2084) is arranged on the outer wall of the first fixing block (2083); an arc-shaped spring plate (2085) is fixedly connected to the top of the second fixing block (2084); and one end of the arc-shaped spring plate (2085) away from the second fixing block (2084) is fixedly connected to the first fixing block (2083).

4. The automatic hanging device for parts to be sprayed in a spraying line according to claim 3 is characterized in that: The outer wall of the second fixed block (2084) on one side close to the first fixed block (2083) is fixedly connected to a first connecting shaft (2086); one end of the first connecting shaft (2086) away from the first fixed block (2083) passes through the first fixed block (2083) and is fixedly connected to a first spring (2087); the first spring (2087) is fixedly connected to the first fixed block (2083) on one side close to the second fixed block (2084).

5. The automatic hanging device for parts to be sprayed in a spraying line according to claim 2 is characterized in that: The clamping assembly (209) comprises a third connecting frame (2091) fixedly connected to the second hydraulic rod (2082); one end of the third connecting frame (2091) away from the second hydraulic rod (2082) is fixedly connected to a third fixed block (2092); a force plate (2093) is arranged on an outer wall of a side of the third fixed block (2092) away from the third connecting frame (2091); and an inner wall of the third fixed block (2092) is rotatably connected to a rotating rod (2097) via a rotating shaft.

6. The automatic hanging device for parts to be sprayed in a spraying line according to claim 5, characterized in that: There are two rotating rods (2097), and the two rotating rods (2097) are symmetrically arranged with the central axis of the third fixed block (2092) as the center. The end of the rotating rod (2097) away from the third fixed block (2092) is rotatably connected to a clamping plate (2098) via a rotating shaft. The outer wall of the clamping plate (2098) on one side close to the rotating rod (2097) is fixedly connected to a third spring (2099), and the end of the third spring (2099) away from the clamping plate (2098) is fixedly connected to the rotating rod (2097).

7. The automatic hanging device for parts to be sprayed in a spraying line according to claim 5, characterized in that: The inner wall of the force-bearing plate (2093) is slidably connected to the inner wall of the rotating rod (2097) via a rotating shaft; the outer wall of the force-bearing plate (2093) on one side close to the third fixed block (2092) is fixedly connected to a second connecting shaft (2094); the end of the second connecting shaft (2094) away from the force-bearing plate (2093) passes through the third fixed block (2092) and is fixedly connected to a limiting block (2095).

8. The automatic hanging device for parts to be sprayed in a spraying line according to claim 7, characterized in that: The number of the second connecting shafts (2094) is two, and the two second connecting shafts (2094) are symmetrically arranged with the central axis of the limit block (2095) as the center, and the end of the limit block (2095) close to the third fixed block (2092) is fixedly connected to the second spring (2096), and the end of the second spring (2096) away from the limit block (2095) is fixedly connected to the third fixed block (2092).

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