Suspension device for to-be-painted part of suspension type paint spraying line

Abstract

The invention discloses a suspension device for a to-be-painted part of a suspension type paint spraying line. The suspension device comprises a suspension seat, a first suspension rod, a second suspension rod and a third suspension rod. The upper end of the first lifting rod is rotationally connected with the lifting seat; a containing cavity for containing the second hanging rod is formed in the first hanging rod, and the second hanging rod is inserted into the containing cavity; the upper end of the third hanging rod is hung at the bottom end of the second hanging rod, and the bottom end of the third hanging rod is used for hanging a part to be painted; the device further comprises a clamping assembly, the clamping assembly is used for clamping the third hanging rod, the clamping assembly comprises two supports which are symmetrically arranged, one end of each support is hinged to the first hanging rod, the other end of each support is provided with a clamping piece, and a connecting rod is hinged to the portion, exposed out of the first hanging rod, of the second hanging rod. A reset spring is arranged between the top end of the first hanging rod and the top end of the second hanging rod. The suspension device for the to-be-painted workpiece of the suspension type paint spraying line has the beneficial effect that the to-be-painted workpiece is stably suspended.

Description

Technical Field

[0001] The invention relates to the technical field of paint spraying suspension equipment, and in particular to a suspension device for a part to be sprayed with paint in a suspended paint spraying line. Background Art

[0002] With the development of manufacturing industry, the demand for product painting is increasing. Traditional manual painting or simple fixed-station painting is inefficient and cannot meet the needs of large-scale production. The emergence of suspended painting lines enables the parts to be painted to be painted in sequence during the conveying process, which greatly improves the production efficiency of painting and realizes continuous and automated painting operations.

[0003] During the painting operation, the paint sprayed from the spray gun will produce a certain spray force, which will easily cause the parts to be painted to shake when acting on them, resulting in uneven paint spraying, paint flow, paint leakage and other problems, seriously affecting the quality and effect of painting. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a suspension device for a workpiece to be sprayed in a suspension type spray painting line, which can stably suspend the workpiece to be sprayed.

[0005] The technical solution of the present invention is:

[0006] A suspension device for a workpiece to be sprayed with paint in a suspension type spray painting line, comprising a suspension seat, a first suspension rod, a second suspension rod and a third suspension rod;

[0007] The upper end of the first suspension rod is rotatably connected to the suspension seat;

[0008] The first suspension rod is provided with a cavity for accommodating the second suspension rod, and the second suspension rod is inserted into the cavity where the first suspension rod is located;

[0009] The upper end of the third suspension rod is hung on the lower end of the second suspension rod, and the lower end of the third suspension rod is used to hang the part to be painted;

[0010] It also includes a clamping assembly, which is used to clamp the third suspension rod. The clamping assembly includes two symmetrically arranged supports, one end of each support is hinged to the first suspension rod, and the other end is provided with a clip. The second suspension rod is hinged to a connecting rod at a portion exposed from the first suspension rod, and a return spring is provided between the top ends of the first suspension rod and the second suspension rod. When the first suspension rod and the second suspension rod slide relative to each other, the clamping assembly is controlled to open and close synchronously through each connecting rod.

[0011] Preferably, a guide sleeve is provided at the suspension seat, and the guide sleeve is used to constrain the first suspension rod, and the first suspension rod and the suspension seat are rotationally connected via a thrust bearing.

[0012] In any of the above solutions, preferably, a polytetrafluoroethylene layer is provided between the guide sleeve and the first suspension rod.

[0013] In any of the above schemes, it is preferred that an end cover is provided at the lower end of the first hanger, a through hole adapted to the body of the second hanger is provided at the end cover, a flange is provided at the upper end of the second hanger, and the end cover and the flange cooperate to limit the second hanger.

[0014] In any of the above schemes, preferably, the end cover is threadedly connected to the lower end of the first suspension rod, and the flange at the upper end of the second suspension rod is threadedly connected to the second suspension rod.

[0015] In any of the above solutions, preferably, a flexible gasket is provided on one side of each of the clips that contacts the third suspension rod.

[0016] In any of the above schemes, preferably, a restraining groove is provided on one side of each of the clips that contacts the third suspension rod, and when the two clips are closed, the third suspension rod is located at the bottom of each restraining groove.

[0017] In any of the above schemes, it is preferred that each of the clips is hinged to the end of each of the supports respectively.

[0018] In any of the above schemes, it is preferred that it further includes a loading platform and an unloading platform, the loading platform and the unloading platform are arranged in the same shape and both include a bracket, a platform and a push rod, and the push rod is used to control the lifting of the platform.

[0019] In any of the above schemes, it is preferred that the push rod is any one of an electric push rod, a pneumatic push rod, and a hydraulic push rod.

[0020] The suspension device for the workpiece to be sprayed in the suspended paint spraying line of the present invention includes a suspension seat, and also includes a first suspension rod, a second suspension rod and a third suspension rod. The upper end of the first suspension rod is rotatably connected to the suspension seat, and the first suspension rod is constrained by the suspension seat, thereby preventing the first suspension rod and the suspension seat from swinging relative to each other. The second suspension rod is inserted into the cavity where the first suspension rod is located, and the first suspension rod constrains the second suspension rod, thereby preventing the second suspension rod and the first suspension rod from swinging relative to each other. When the third suspension rod carries the workpiece to be sprayed and is suspended at the bottom end of the second suspension rod, under the action of the gravity of the workpiece to be sprayed, the clamping assembly is driven by the connecting rod hinged at the second suspension rod to clamp the third suspension rod, thereby preventing the third suspension rod from swinging. Therefore, the suspension device for the workpiece to be sprayed in the suspended paint spraying line has the beneficial effect of suspending the workpiece to be sprayed firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of an embodiment of a suspension device for an article to be painted in a suspension-type paint spraying line of the present invention.

[0022] Figure 2 for Figure 1 AA cross-sectional schematic diagram of the illustrated embodiment.

[0023] Figure 3 It is a schematic diagram of a preferred embodiment of the cooperation between the first suspension rod and the second suspension rod of the suspension device of the workpiece to be painted in the suspension type paint spraying line of the present invention.

[0024] Figure 4 It is a schematic diagram of an embodiment of the cooperation between the clip and the support of the suspension device of the workpiece to be painted in the suspension type paint spraying line of the present invention.

[0025] Figure 5 for Figure 4 A schematic cross-sectional view taken along line BB of the illustrated embodiment.

[0026] Figure 6 It is a schematic diagram of an embodiment of the present invention in which a suspension device for a workpiece to be painted and a loading platform or an unloading platform cooperate with each other.

[0027] Description of the numbers in the figure:

[0028] 101-suspension seat; 102-top cover; 103-thrust bearing; 104-first suspension rod; 105-connecting rod; 106-support; 107-clamp; 108-third suspension rod; 109-base; 110-second suspension rod; 111-guide sleeve; 112-reset spring; 113-flange; 114-end cover; 115-bracket; 116-push rod. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] Embodiment 1:

[0032] like Figure 1 , 2In the illustrated embodiment, the hanger 101 is connected to the conveying chain of the suspended painting line. Specifically, the two ends of the hanger 101 can be connected to the chain pieces of the conveying chain by bolts, or can be fixed to the hinge shafts between the chain pieces of the conveying chain by sleeves. On the other hand, the hanger 101 is connected to the first hanger rod 104 to achieve the function of hanging the first hanger rod 104 and other components directly or indirectly connected to the first hanger rod 104.

[0033] The upper end of the first suspension rod 104 is rotatably connected to the suspension seat 101, so that when the workpiece to be painted enters the painting operation area, the first suspension rod 104 and the suspension seat 101 can be relatively rotated by driving the first suspension rod 104. Specifically, a mounting hole is provided at the suspension seat 101, and the first suspension rod 104 is inserted into the mounting hole. The top cover 102 at the top of the first suspension rod 104 contacts the body of the suspension seat 101 as a force point. The constraint of the mounting hole on the first suspension rod 104 makes it possible for the spray force of the paint spray gun to not cause the first suspension rod 104 and the suspension seat 101 to shake relative to each other during the painting process. In order to reduce the friction between the first suspension rod 104 and the suspension seat 101 when the first suspension rod 104 rotates along the suspension seat 101, the first suspension rod 104 and the suspension seat 101 are rotatably connected via a thrust bearing 103.

[0034] The first suspension rod 104 is provided with a cavity, and the second suspension rod 110 is slidably connected in the cavity where the first suspension rod 104 is located by plugging.

[0035] The upper end of the third suspension rod 108 and the lower end of the second suspension rod 110 are provided with hooks that cooperate with each other, and the upper end of the third suspension rod 108 is hung on the bottom end of the second suspension rod 110 through the hooks, and the bottom end of the third suspension rod 108 is used to hang the parts to be painted.

[0036] When the third suspension rod 108 carries the workpiece to be painted and is hung at the lower end of the second suspension rod 110, the clamping assembly is used to clamp the third suspension rod 108 to prevent the spray force of the paint spray gun from causing the third suspension rod 108 to shake relatively during the painting process. Specifically, the clamping member includes two supports 106, one end of each support 106 is hinged to the outer wall of the first suspension rod 104 near the lower end by a hinged manner, and the other end of each support 106 is respectively provided with a clip 107, and each clip 107 is used to clamp the third suspension rod 108. The part of the second suspension rod 110 exposed to the first suspension rod 104 is hinged with a connecting rod 105. When the diameter of the second suspension rod 110 is small, in order to improve the hinge strength of each connecting rod 105 and the second suspension rod 110, a base 109 is provided at the bottom of the second suspension rod 110, and the hinge seat at the second suspension rod 110 is fixed to the base 109. The other end of each connecting rod 105 is hinged to the corresponding support 106. When the second suspension rod 110 and the first suspension rod 104 slide relative to each other, the supports 106 are driven to rotate relative to each other through each connecting rod 105 to realize the synchronous opening and closing of the clamping assembly. The return spring 112 arranged between the top of the first suspension rod 104 and the second suspension rod 110 pulls up the second suspension rod 110 in a natural state, so that the two clamping pieces 107 of the clamping assembly are in an open state, which is convenient for hanging the third suspension rod 108 carrying the workpiece to be sprayed on the second suspension rod 110.

[0037] When the third hanger 108 carrying the workpiece to be painted is hung on the second hanger 110, due to the gravity of the workpiece to be painted, the second hanger 110 overcomes the elastic force of the return spring 112 and moves downward. As the second hanger 110 moves downward, the connecting rods 105 at the second hanger 110 drive the support 106 to rotate relative to each other, and the two clamps 107 of the clamping assembly perform a clamping action until the two clamps 107 clamp the third hanger 108.

[0038] Embodiment 2:

[0039] On the basis of Example 1, Figure 1 , 2 In the illustrated embodiment, in order to further reduce the potential risk of shaking between the first suspension rod 104 and the suspension seat 101, a guide sleeve 111 is provided at the suspension seat 101, and the guide sleeve 111 and the mounting hole at the suspension seat 101 are concentrically arranged, and the inner walls of the first suspension rod 104 and the guide sleeve 111 have a slight interference fit, and the gap should preferably not exceed 0.5 mm.

[0040] In this embodiment, in order to reduce the friction force when the first suspension rod 104 rotates, an optional way is that the potential contact parts between the outer wall of the first suspension rod 104 and the guide sleeve 111 are all smooth. Another optional way is that a polytetrafluoroethylene layer is provided between the guide sleeve 111 and the first suspension rod 104. The polytetrafluoroethylene material has self-lubricating and wear-resistant properties.

[0041] Embodiment 3:

[0042] On the basis of Example 1 or 2, Figure 3 In the illustrated embodiment, in order to prevent the weight of the workpiece to be painted from being transmitted to the clamping assembly when the weight of the workpiece to be painted is large, causing the support 106 of the clamping assembly and the connecting rod 105 for adjusting the opening and closing of the clamping assembly to be deformed, an end cap 114 is provided at the lower end of the second suspension rod 110, and the through hole provided at the end cap 114 is used for the second suspension rod 110 to pass through. When in use, when the two clips 107 are in the clamped state, the end cap 114 just blocks the flange 113 at the upper end of the second suspension rod 110, which can prevent the second suspension rod 110 from further moving downward, thereby preventing the support 106 of the clamping assembly and the connecting rod 105 for adjusting the opening and closing of the clamping assembly from being deformed.

[0043] In this embodiment, in order to increase the assembly speed, the end cap 114 is threadedly connected to the lower end of the second suspension rod 110, and the flange 113 at the upper end of the second suspension rod 110 is threadedly connected to the second suspension rod 110. During assembly, the flange 113 at the upper end of the second suspension rod 110 is first separated from the second suspension rod 110, and then the second suspension rod 110 is inserted into the through hole of the end cap 114, and the relative positions of the flange 113 and the second suspension rod 110 are adjusted. Finally, the second suspension rod 110 and the first suspension rod 104 can be quickly assembled by rotating the end cap 114.

[0044] Embodiment 4:

[0045] On the basis of any one of the embodiments 1 to 3, a flexible gasket is provided on the side where each clip 107 contacts the third suspension rod 108. When each clip 107 clamps the third suspension rod 108, the flexible gasket can be deformed to a certain extent, so that each clip 107 clamps the third suspension rod 108 more firmly.

[0046] The material of the flexible gasket can be silicone or rubber.

[0047] Embodiment 5:

[0048] On the basis of any one of embodiments 1-4, Figure 4 , 5 In the illustrated embodiment, when each clip 107 clamps the third suspension rod 108, in order to ensure that the third suspension rod 108 is in a vertical direction, a constraint groove is provided on the side where each clip 107 and the third suspension rod 108 contact, and when the two clips 107 are closed, the third suspension rod 108 is located at the bottom of each constraint groove.

[0049] Embodiment 6:

[0050] On the basis of any one of embodiments 1-5, Figure 4In the illustrated embodiment, in order to ensure that each clip 107 is in effective contact with the outer wall of the third suspension rod 108 when the diameter of the third suspension rod 108 changes, each clip 107 is hinged to the end of each support 106 .

[0051] Embodiment 7:

[0052] On the basis of any one of embodiments 1-6, Figure 6 In the illustrated embodiment, when the weight of the parts to be painted is relatively large, in order to facilitate the loading and unloading of the parts to be painted, a loading platform and an unloading platform are additionally provided in the present embodiment. The loading platform and the unloading platform are arranged in the same shape and both include a bracket 115, a platform and a push rod 116, and the push rod 116 is used to control the lifting and lowering of the platform.

[0053] When in use, the loading platform and the unloading platform are respectively set at the loading and unloading positions. When the parts to be painted need to be hoisted, when the second hoisting rod 110 reaches above the parts to be painted, the upper end of the third hoisting rod 108 is hung on the bottom end of the second hoisting rod 110, and the push rod 116 is controlled by the switch, and the push rod 116 drives the platform downward until the parts to be painted are in a suspended state.

[0054] When it is necessary to unload the workpiece after painting, when the workpiece to be painted reaches the top of the unloading platform, the push rod 116 is controlled by the switch, and the push rod 116 drives the platform upward until the painted workpiece is lifted up. After the clamp 107 is opened, the third suspension rod 108 can be detached from the second suspension rod 110.

[0055] The embodiments described above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered within the protection scope of the present invention.

Claims

1. A suspension device for a workpiece to be painted in a suspended painting line, comprising a suspension seat (101), characterized in that: Also includes a first suspension rod (104), a second suspension rod (110) and a third suspension rod (108); The upper end of the first suspension rod (104) is rotatably connected to the suspension seat (101); The first suspension rod (104) is provided with a cavity for accommodating the second suspension rod (110), and the second suspension rod (110) is inserted into the cavity where the first suspension rod (104) is located; The upper end of the third suspension rod (108) is hung on the lower end of the second suspension rod (110), and the lower end of the third suspension rod (108) is used to hang the workpiece to be sprayed with paint; It also includes a clamping assembly, which is used to clamp the third suspension rod (108). The clamping assembly includes two symmetrically arranged supports (106), one end of each support (106) is hinged to the first suspension rod (104), and the other end is provided with a clamp (107). The second suspension rod (110) is hinged to a connecting rod (105) at a portion exposed from the first suspension rod (104), and a return spring (112) is provided between the top ends of the first suspension rod (104) and the second suspension rod (110). When the first suspension rod (104) and the second suspension rod (110) slide relative to each other, the clamping assembly is controlled to open and close synchronously through each connecting rod (105).

2. The suspension device for the workpiece to be painted in the suspended painting line according to claim 1, characterized in that: A guide sleeve (111) is provided at the suspension seat (101), and the guide sleeve (111) is used to constrain the first suspension rod (104). The first suspension rod (104) and the suspension seat (101) are rotatably connected via a thrust bearing (103).

3. The suspension device for the workpiece to be sprayed in the suspension type spray painting line according to claim 2, characterized in that: A polytetrafluoroethylene layer is provided between the guide sleeve (111) and the first suspension rod (104).

4. The suspension device for the workpiece to be painted in the suspended painting line according to claim 1, characterized in that: The lower end of the first suspension rod (104) is provided with an end cover (114), and the end cover (114) is provided with a through hole adapted to the body of the second suspension rod (110). The upper end of the second suspension rod (110) is provided with a flange (113), and the end cover (114) and the flange (113) cooperate to limit the second suspension rod (110).

5. The suspension device for the workpiece to be painted in the suspension type painting line according to claim 4, characterized in that: The end cover (114) is threadedly connected to the lower end of the first suspension rod (104), and the flange (113) at the upper end of the second suspension rod (110) is threadedly connected to the second suspension rod (110).

6. The suspension device for the workpiece to be sprayed in the suspension type spray painting line according to claim 1, characterized in that: A flexible gasket is provided on one side of each clip (107) contacting the third suspension rod (108).

7. The suspension device for the workpiece to be sprayed in the suspension type spray painting line according to claim 1, characterized in that: A restraining groove is provided on one side of each clamping piece (107) contacting the third suspension rod (108); when the two clamping pieces (107) are closed, the third suspension rod (108) is located at the bottom of each restraining groove.

8. The suspension device for the workpiece to be sprayed in the suspension type spray painting line according to claim 1, characterized in that: Each clip (107) is hinged to the end of each support (106).

9. The suspension device for the workpiece to be sprayed in the suspension type spray painting line according to claim 1, characterized in that: It also includes a loading platform and an unloading platform. The loading platform and the unloading platform are arranged in the same shape and both include a bracket (115), a platform and a push rod (116). The push rod (116) is used to control the lifting of the platform.

10. The suspension device for the workpiece to be sprayed in the suspension type spray painting line according to claim 9, characterized in that: The push rod (116) is any one of an electric push rod, a pneumatic push rod and a hydraulic push rod.

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