Screw rod rotary spraying device

Abstract

The utility model relates to the technical field of spraying equipment, and provides a screw rod rotary spraying device, which comprises a working table, a rotating assembly, a positioning mechanism and a spraying gun, the rotating assembly comprises a driving part and a clamping part, the driving part and the clamping part are arranged on the working table, the driving part is in transmission connection with the clamping part, and the positioning mechanism is arranged on the working table. The clamping part is used for clamping one end of the screw rod and driving the screw rod to rotate along the axis of the screw rod through the driving part; the positioning mechanism comprises a positioning part, and the positioning part is arranged on the workbench. According to the screw rod rotating spraying device, the rotating assembly and the positioning mechanism are arranged, one end of the screw rod is clamped by the rotating assembly, the other end of the screw rod is positioned by the positioning mechanism, locking of the screw rod is achieved, then the screw rod is driven by the rotating assembly to rotate, and in the self-rotating process, a spraying gun transversely moves for spraying; and therefore, the self-rotating spraying operation of the lead screw is completed, paint flow gathering in the spraying process is avoided, and the spraying quality and the spraying efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to a screw-rotating spraying device. Background Art

[0002] With the rapid development of China's automation industry, the types and quantities of non-standard parts required for equipment have increased. To meet the processing requirements of various non-standard parts, a variety of supporting specialized process equipment has also emerged. For example, publication number CN117259077A discloses an automatic rotary painting device for cylindrical workpieces. To meet the large painting requirements of workpieces, this device not only allows for circumferential painting of the workpiece, but also allows for easy adjustment of the axial painting length range of the workpiece, thereby ensuring uniform paint thickness and enabling long-distance painting, which is beneficial for factory automation.

[0003] However, for the surface spraying operation of a certain special screw rod, the rotary spraying method of the above-mentioned scheme is likely to form paint convergence on the screw rod, and cannot be directly applied to the surface spraying of the special screw rod. In the existing technology, this type of screw rod is usually operated by manual spraying, but manual spraying has the problem of uneven surface spraying and easy convergence of paint, which cannot meet the production needs of supporting equipment. Utility Model Content

[0004] In view of this, the utility model proposes a screw rotary spraying device, which clamps one end of the screw by a rotating component, and positions the other end of the screw by a positioning mechanism to lock the screw, and cooperates with the spray gun to complete the self-rotating spraying operation of the screw, so as to avoid paint gathering during the spraying process and improve the spraying quality and efficiency.

[0005] The technical solution of the present invention is achieved as follows: The present invention provides a screw rotary spraying device, comprising a workbench, a rotating assembly, a positioning mechanism and a spray gun, wherein:

[0006] The rotating assembly includes a driving portion and a clamping portion, both of which are arranged on a workbench and are in transmission connection with each other. The clamping portion is used to clamp one end of the screw and drive the screw to rotate along its axis through the driving portion.

[0007] The positioning mechanism includes a positioning portion, which is arranged on the workbench and can move toward the clamping portion to contact the other end of the screw rod, and the positioning portion can rotate coaxially with the screw rod;

[0008] The spray gun is movably arranged on the workbench. The spray gun is located outside the screw rod and faces the screw rod so as to spray the screw rod along a straight line on the workbench.

[0009] On the basis of the above technical solution, preferably, the positioning mechanism further includes a slide rail, the slide rail is fixed on the workbench, and the positioning part is slidably arranged on the slide rail so that the positioning part moves toward the clamping part through the slide rail.

[0010] Further preferably, the positioning mechanism further includes a bottom guard plate, which is arranged between the slide rail and the positioning portion and is fixed relative to the positioning portion, and the bottom guard plate extends to the outside of the slide rail to shield the slide rail.

[0011] More preferably, the positioning mechanism further includes a fixing member, which is disposed on the bottom guard plate and can move toward the workbench to fix the bottom guard plate relative to the slide rail.

[0012] On the basis of the above technical solution, preferably, it further includes a linear drive mechanism, which is arranged on a workbench. The linear drive mechanism includes a movable end, which can move along a straight line parallel to the axis of the screw, and the spray gun is relatively fixed to the movable end.

[0013] Further preferably, the linear drive mechanism includes a drive motor, a transmission rod, a slide and a guide rail, wherein:

[0014] The driving motor is fixed on the workbench;

[0015] The transmission rod is arranged on the workbench, and one end of the transmission rod is connected to the driving motor;

[0016] The slide is threadedly connected to the transmission rod, and the spray gun is relatively fixed to the slide;

[0017] The guide rail is fixed on the workbench, and the slide seat is slidably connected to the guide rail.

[0018] More preferably, the linear drive mechanism further includes a pull rope sensor, the pull rope sensor is fixed on the workbench, and the pull rope end is fixed to the slide.

[0019] More preferably, it further comprises a bracket, one end of the bracket is fixed on the slide, and the other end is fixed to the spray gun.

[0020] More preferably, the bracket includes a crossbar, a connecting piece and a vertical bar, wherein:

[0021] One end of the crossbar is fixed to the slide;

[0022] The connecting piece is fixed to the other end of the crossbar;

[0023] The vertical rod is fixed to the connecting piece, and the spray gun is arranged at the end of the vertical rod.

[0024] On the basis of the above technical solution, preferably, it further includes a plurality of cover plates, which are fixed on the workbench and are all located on the outside of the screw rod.

[0025] The screw rotary spraying device of the utility model has the following beneficial effects compared with the prior art:

[0026] (1) By setting a rotating assembly and a positioning mechanism, the rotating assembly clamps one end of the screw rod, and the positioning mechanism positions the other end of the screw rod to achieve the locking of the screw rod, and then the rotating assembly drives the screw rod to rotate, and during the self-rotation process, the spray gun moves horizontally to spray, thereby completing the self-rotation spraying operation of the screw rod, so as to avoid the paint gathering during the spraying process and improve the spraying quality and spraying efficiency;

[0027] (2) A bottom guard plate is provided to cover the slide rail to prevent the paint from covering the slide rail during the spraying process and affecting the normal use of the slide rail. The other end of the slide rail is protected by installing an accordion cover to prevent the slide rail from being contaminated by the paint and causing the bottom guard plate to be unable to slide on the slide rail, thereby improving the stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a three-dimensional diagram of the screw rotary spraying device of the present invention;

[0030] Figure 2 This is a schematic diagram of the linear drive mechanism of the screw rotary spraying device of the present invention;

[0031] Figure 3 This is a schematic diagram of the positioning mechanism of the screw rotary spraying device of the present invention. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1-3 As shown, the screw rotary spraying device of the present invention includes a workbench 1, a rotating component 2, a positioning mechanism 3 and a spray gun 4.

[0034] The workbench 1 has a main frame constructed of profiles, and four universal wheels are set at the bottom of the frame for the device to move. A table is set on the main frame to form a work station for spraying the screw rod. In addition, in order to realize the control of the device, an electrical compartment located outside the work station is also set on the workbench 1. The outside of the electrical compartment is covered with a plate to isolate the inside and outside of the electrical compartment.

[0035] The rotating assembly 2 includes a driving part 21 and a clamping part 22, both of which are arranged on the workbench 1, and the driving part 21 is connected to the clamping part 22 in a transmission manner. The clamping part 22 is used to clamp one end of the screw rod and drive the screw rod to rotate along its axis through the driving part 21. Specifically, the driving part 21 can directly use a servo motor, which is fixed in the electrical warehouse through a motor mounting seat, and the clamping part 22 is arranged on a plate outside the electrical warehouse through a bearing. The clamping part 22 is connected to the output end of the servo motor through a coupling to drive the clamping part 22 to rotate through the driving part 21. The clamping part 22 is preferably a chuck, specifically a three-jaw chuck, and the clamping part 22 is located on the work station, directly clamping one end of the screw rod to be sprayed, so as to achieve relative fixation of the clamping part 22 and the screw rod, so that the driving part 21 directly drives the screw rod to self-rotate through the clamping part 22.

[0036] The positioning mechanism 3 includes a positioning portion 31, which is arranged on the workbench 1 and can move toward the clamping portion 22 to contact the other end of the screw. The positioning portion 31 can rotate coaxially with the screw. Since the positioning mechanism 3 needs to cooperate with the rotating component 2 to position the two ends of the screw to avoid unstable rotation of the screw, and in order to adapt to the length of different special screws, the positioning portion 31 can be adjusted along the length direction of the screw at the work station, so as to be suitable for positioning operations of screws of different lengths.

[0037] In this embodiment, the positioning mechanism 3 also includes a connecting seat, which is arranged on the workstation of the workbench 1. The positioning part 31 is rotatably arranged on one side of the connecting seat. When the connecting seat moves along the length direction of the screw rod, the positioning part 31 can be pressed against or inserted into the end of the screw rod to achieve the positioning of the screw rod.

[0038] For a screw with a hole groove at the end, the positioning portion 31 is preferably a tapered component, which is inserted into the hole groove through the tapered structure to increase the contact area and provide better centering stability to achieve stable spraying operation of the screw.

[0039] The spray gun 4 is movably arranged on the workbench 1 . The spray gun 4 is located outside the screw and faces the screw, so as to spray the screw along a linear motion on the workbench 1 .

[0040] In this embodiment, the positioning mechanism 3 further includes a slide rail 32 , which is fixed on the workbench 1 , and the positioning portion 31 is slidably disposed on the slide rail 32 , so that the positioning portion 31 moves toward the clamping portion 22 via the slide rail 32 .

[0041] The number of slide rails 32 is set to two, and both are located on the work station. The two slide rails 32 are parallel to the axis of the screw to be sprayed to provide stable linear guidance for the positioning part 31. In addition, the positioning part 31 is set on the two slide rails 32 through a connecting seat.

[0042] As a preferred embodiment, the positioning mechanism 3 also includes a bottom guard plate 33, which is arranged between the slide rail 32 and the positioning portion 31 and is relatively fixed to the positioning portion 31. The bottom guard plate 33 extends to the outside of the slide rail 32 to shield the slide rail 32.

[0043] The bottom guard plate 33 is fixed to the bottom of the connecting seat and connected to the two slide rails 32, that is, the connecting seat is slidably connected to the slide rails 32 through the bottom guard plate 33. The bottom guard plate 33 has a certain length on the side facing the screw rod to cover the slide rails 32 to prevent the paint from covering the slide rails 32 during the spraying process and affecting the normal use of the slide rails 32. The other end of the slide rail 32 is protected by installing an accordion cover to prevent the slide rail 32 from being contaminated by the paint and causing the bottom guard plate 33 to be unable to slide on the slide rail 32.

[0044] In this embodiment, the positioning mechanism 3 further includes a fixing member 34 , which is disposed on the bottom guard plate 33 and can move toward the workbench 1 to fix the bottom guard plate 33 and the slide rail 32 relative to each other.

[0045] The fixing part 34 is threadedly connected to the bottom guard plate 33, and a handle is provided on the fixing part 34. By rotating the handle, the fixing part 34 moves downward through the thread, thereby contacting the table surface of the workbench 1, thereby locking the position of the positioning mechanism 3 so that the positioning part 31 can stably contact the end of the screw rod.

[0046] As a preferred embodiment, it also includes a linear drive mechanism 5, which is arranged on the workbench 1. The linear drive mechanism 5 includes a movable end, which can move along a straight line parallel to the axis of the screw, and the spray gun 4 is relatively fixed to the movable end.

[0047] The linear drive mechanism 5 drives the movable end to perform linear displacement, driving the spray gun 4 to move laterally, where the lateral direction refers to the length direction of the screw, thereby completing a uniform spraying operation on the outside of the screw during the screw rotation process.

[0048] Specifically, the linear drive mechanism 5 includes a drive motor 51, a transmission rod 52, a slide 53 and a guide rail 54. The drive motor 51 is fixed on the workbench 1, the transmission rod 52 is arranged on the workbench 1, and one end is transmission-connected to the drive motor 51, the slide 53 is threadedly connected to the transmission rod 52, the spray gun 4 is relatively fixed to the slide 53, the guide rail 54 is fixed on the workbench 1, and the slide 53 is slidingly connected to the guide rail 54.

[0049] The transmission rod 52 is provided with a thread on the outside, which is a screw rod, but the screw rod is not the screw rod to be sprayed in this embodiment. The transmission rod 52 drives the slide 53 to move linearly on the guide rail 54, so that the spray gun 4 can perform mobile spraying operations. In addition, two stroke sensors are also provided on the workbench 1. The two stroke sensors are respectively provided at both ends of the screw rod to detect whether the slide 53 has reached the movement limit to avoid damage to the mechanical parts by exceeding its activity limit.

[0050] In addition, the linear drive mechanism 5 further includes a pull rope sensor 55 . The pull rope sensor 55 is fixed on the workbench 1 , and the end of the pull rope is fixed to the slide 53 .

[0051] The rope sensor 55 detects the position of the slide 53 and further determines the displacement distance of the spray gun 4 on a straight line, which is more conducive to the automation of the spraying operation.

[0052] In this embodiment, a bracket 6 is further provided, one end of the bracket 6 is fixed to the slide 53 , and the other end is fixed to the spray gun 4 .

[0053] The position of the slide 53 connected to the spray gun 4 is changed by the bracket 6 so that the spray gun 4 is located above the screw to be sprayed, and the spraying operation is performed from top to bottom, which prevents the paint from drifting to the outside and is more conducive to uniform spraying operation.

[0054] In addition, a protective component is also provided on the workbench 1. The protective component cover is provided on the outside of the linear drive mechanism 5. The protective component includes a sealing plate and two accordion covers. The sealing plate cover is provided on the workbench 1. The two accordion covers are respectively provided on both sides of the bracket 6 to prevent paint from entering the linear drive mechanism 5 during operation.

[0055] Specifically, the bracket 6 includes a cross bar 61, a connecting piece 62 and a vertical bar 63. One end of the cross bar 61 is fixed on the slide 53, the connecting piece 62 is fixed to the other end of the cross bar 61, the vertical bar 63 is fixed to the connecting piece 62, and the spray gun 4 is set at the end of the vertical bar 63.

[0056] The connecting member 62 is fixed to the horizontal bar 61 and the vertical bar 63 by bolts. The horizontal bar 61 and the vertical bar 63 are perpendicular to each other. By loosening the bolts on the connecting member 62, the relative position of the connecting member 62 and the horizontal bar 61 can be adjusted, and the relative position of the vertical bar 63 and the connecting member 62 can be adjusted, thereby being suitable for spraying operations of screw rods of different specifications, and also reducing the offset of the spray gun 4 during the spraying operation.

[0057] As a preferred embodiment, it further includes a plurality of cover plates 7, which are fixed on the workbench 1 and are all located on the outside of the screw rod.

[0058] Specifically, there are at least four cover plates 7, which are respectively located on the left side, back side, front side and bottom side of the screw rod to be sprayed. The bottom cover plate 7 is located above the bottom guard plate 33 and has a certain gap between it and the bottom guard plate 33, so that the bottom guard plate 33 can be inserted under the cover plate 7 when moving, so as to cooperate with the bottom guard plate 33 to effectively protect the slide rail 32.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screw rotary spraying device, characterized in that: It comprises a workbench (1), a rotating assembly (2), a positioning mechanism (3) and a spray gun (4), wherein: The rotating assembly (2) comprises a driving portion (21) and a clamping portion (22), wherein the driving portion (21) and the clamping portion (22) are both arranged on the workbench (1), and the driving portion (21) and the clamping portion (22) are transmission-connected, and the clamping portion (22) is used to clamp one end of the screw rod and drive the screw rod to rotate along its axis through the driving portion (21); The positioning mechanism (3) includes a positioning portion (31), which is arranged on the workbench (1) and can move toward the clamping portion (22) to contact the other end of the screw rod. The positioning portion (31) can rotate coaxially with the screw rod. The spray gun (4) is movably arranged on the workbench (1), and the spray gun (4) is located outside the screw rod and faces the screw rod, so as to spray the screw rod along a linear motion on the workbench (1).

2. The screw rotary spraying device according to claim 1, characterized in that: The positioning mechanism (3) further comprises a slide rail (32) fixed on the workbench (1), and the positioning portion (31) is slidably arranged on the slide rail (32) so that the positioning portion (31) moves toward the clamping portion (22) via the slide rail (32).

3. The screw rotary spraying device according to claim 2, characterized in that: The positioning mechanism (3) further comprises a bottom guard plate (33), which is arranged between the slide rail (32) and the positioning portion (31) and fixed relative to the positioning portion (31). The bottom guard plate (33) extends to the outside of the slide rail (32) to shield the slide rail (32).

4. The screw-rotating spraying device according to claim 3, characterized in that: The positioning mechanism (3) further comprises a fixing member (34), which is arranged on the bottom guard plate (33) and can move toward the workbench (1) to fix the bottom guard plate (33) and the slide rail (32) relative to each other.

5. The screw-rotating spraying device according to claim 1, characterized in that: The invention also includes a linear drive mechanism (5), which is arranged on the workbench (1). The linear drive mechanism (5) includes a movable end, which can move along a straight line parallel to the axis of the screw rod, and the spray gun (4) is fixed relative to the movable end.

6. The screw-rotating spraying device according to claim 5, characterized in that: The linear drive mechanism (5) includes a drive motor (51), a transmission rod (52), a slide (53) and a guide rail (54), wherein: The driving motor (51) is fixed on the workbench (1); The transmission rod (52) is arranged on the workbench (1), and one end of the transmission rod is connected to the driving motor (51); The slide seat (53) is threadedly connected to the transmission rod (52), and the spray gun (4) and the slide seat (53) are relatively fixed; The guide rail (54) is fixed on the workbench (1), and the slide seat (53) is slidably connected to the guide rail (54).

7. The screw-rotating spraying device according to claim 6, characterized in that: The linear drive mechanism (5) further comprises a pull rope sensor (55), wherein the pull rope sensor (55) is fixed on the workbench (1), and the pull rope end is fixed to the slide seat (53).

8. The screw-rotating spraying device according to claim 6, characterized in that: It also includes a bracket (6), one end of which is fixed on the slide seat (53) and the other end of which is fixed to the spray gun (4).

9. The screw-rotating spraying device according to claim 8, characterized in that: The bracket (6) includes a crossbar (61), a connecting piece (62) and a vertical bar (63), wherein: One end of the crossbar (61) is fixed on the slide (53); The connecting piece (62) is fixed to the other end of the crossbar (61); The vertical rod (63) is fixed to the connecting piece (62), and the spray gun (4) is arranged at the end of the vertical rod (63).

10. The screw-rotating spraying device according to claim 1, characterized in that: It also includes a plurality of cover plates (7), which are fixed on the workbench (1) and are all located outside the screw rod.

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