Spraying device

Abstract

The invention discloses a spraying device. The spraying device comprises a clamping mechanism, the clamping mechanism comprises a clamping driving motor, a threaded rod and two oppositely-arranged clamping connecting pieces, rotatable clamping jaws are arranged on the clamping connecting pieces, the two clamping connecting pieces are in transmission connection with the threaded rod, and the clamping driving motor is used for driving the threaded rod to rotate; the overturning mechanism comprises an overturning driving motor, a transmission shaft and a transmission mechanism, the overturning driving motor is used for driving the transmission shaft to rotate, the transmission mechanism is connected between the clamping jaw and the transmission shaft, and the transmission shaft is used for driving the clamping jaw to overturn through the transmission mechanism; and the paint spraying mechanism comprises a paint spraying pump, a paint box and a nozzle, the paint spraying pump is fixed to the paint box, the inlet end of the paint spraying pump communicates with the paint box through a first connecting pipe, the outlet end of the paint spraying pump communicates with the nozzle through a second connecting pipe, and the nozzle is aligned to the middle of the two clamping jaws. The paint spraying device has the function of automatically clamping the workpiece and can automatically turn over the workpiece, and the paint spraying efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of spraying technology, and in particular to a spraying device. Background Art

[0002] According to the requirements of the workpiece production and processing technology, the workpiece needs to be surface painted before leaving the factory. On the one hand, painting can prevent corrosion and rust on the workpiece and ensure the service life of the workpiece. On the other hand, it can also beautify the workpiece.

[0003] In the related art, most of the painting methods are to manually use a spray gun to spray the surface to be painted, which has low work efficiency. At the same time, the paint contains many toxic volatile substances, and workers are very likely to inhale a large amount of harmful substances, which threatens the health of workers. Some spraying devices also require manual clamping of the workpiece, and can only paint one side of the workpiece, and cannot automatically rotate to the other side to continue painting, which is extremely inconvenient to use and reduces the efficiency of painting. Summary of the invention

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and to provide a spraying device which has the function of automatically clamping a workpiece and automatically flipping the workpiece, thereby improving the efficiency of spraying paint.

[0005] This application is solved by the following technical solutions:

[0006] The present application provides a spraying device, comprising:

[0007] The clamping mechanism comprises a clamping drive motor, a threaded rod and two clamping connectors arranged opposite to each other, wherein the clamping connector is provided with a rotatable clamping jaw, the two clamping jaws are used to clamp a workpiece, the two clamping connectors are transmission-connected with the threaded rod, and the clamping drive motor is used to drive the threaded rod to rotate so that the two clamping connectors are moved closer to or farther away from each other;

[0008] The flipping mechanism comprises a flipping drive motor, a transmission shaft and a transmission mechanism, wherein the flipping drive motor is used to drive the transmission shaft to rotate, the transmission mechanism is connected between the clamping jaw and the transmission shaft, and the transmission shaft is used to drive the clamping jaw to flip through the transmission mechanism;

[0009] The paint spraying mechanism comprises a paint spraying pump, a paint box and a nozzle. The paint spraying pump is fixed to the paint box. The inlet end of the paint spraying pump is connected to the paint box through a first connecting pipe, and the outlet end of the paint spraying pump is connected to the nozzle through a second connecting pipe. The nozzle is aligned with the middle of the two clamping jaws.

[0010] In one implementation, it also includes a frame and a moving mechanism, the frame includes a base and two frames installed on both sides of the base, and the two frames are installed on the base along a horizontal sliding manner; the moving mechanism is arranged between the base and the frame, and is used to drive the two frames to move along the base.

[0011] In one implementation, the clamping drive motor is a bidirectional motor, two threaded rods are provided, the bidirectional motor is placed in the middle of the two threaded rods, two output shafts of the bidirectional motor are arranged back to back and are respectively connected to the two threaded rods one by one, and one end of each threaded rod away from the bidirectional motor is rotatably connected to the frame through a bearing.

[0012] In one implementation, it further includes a support frame, which is fixedly mounted on the frame; the bidirectional motor is fixed to the upper end surface of the support frame, the clamping connector is connected to the threaded rod through a driving rod, one end of the driving rod is fixed to the clamping connector, and the other end is threadedly connected to the corresponding threaded rod;

[0013] Wherein, the driving rod is provided with a screw hole, the screw hole is coaxially arranged with the threaded rod, and the threaded rod is passed through the screw hole and is threadedly connected with the screw hole.

[0014] In one implementation, the flip mechanism includes two transmission mechanisms, each of which includes a driving sprocket, a driven sprocket and a transmission chain; the driving sprocket and the driven sprocket of each transmission mechanism are connected by the transmission chain;

[0015] The driving sprockets, driven sprockets and transmission chains of the two transmission mechanisms overlap at least partially with the clamping connector in the axial direction of the threaded rod, the transmission shaft passes through the two clamping connectors, and the two transmission mechanisms are arranged on both sides of the two clamping connectors;

[0016] Among them, the flipping drive motor is fixed to one of the clamping connectors, the output shaft of the flipping drive motor is connected to the transmission shaft, the driving sprockets of the two transmission mechanisms are connected through the transmission shaft and are arranged at both ends of the transmission shaft, and the transmission shaft is used to drive the two driving sprockets to rotate; the driven sprockets of the two transmission mechanisms are rotatably connected to the side of the clamping connector away from the threaded rod, and are fixedly connected to the clamping claws on the inner side of the clamping connector.

[0017] In one implementation, the transmission shaft includes a shaft tube and a shaft sleeve, wherein the driving sprocket of one of the transmission mechanisms is mounted on the shaft tube of the transmission shaft, and the driving sprocket of another transmission mechanism is mounted on the shaft sleeve of the transmission shaft;

[0018] One end of the shaft tube rotates through one of the clamping connectors through the first bearing and is fixedly connected to the output shaft of the clamping drive mechanism; one end of the shaft sleeve rotates through the other clamping connector through the second bearing, and the other end of the shaft sleeve is slidably sleeved on the other end of the shaft tube;

[0019] Wherein, the shaft tube and the shaft sleeve are coaxially arranged, and the shaft sleeve and the shaft tube are spline-connected.

[0020] In one implementation, the clamping connector is an inverted "L"-shaped frame, and the clamping claw is installed at the lower end of the "L"-shaped frame; the upper end of the inverted "L"-shaped frame is a laterally extending moving part, and the moving parts of the two inverted "L"-shaped frames are arranged opposite to each other; the first bearing is arranged at the moving part of one of the inverted "L"-shaped frames, and the second bearing is arranged at the moving part of the other inverted "L"-shaped frame;

[0021] The lower end of the inverted "L"-shaped frame is a clamping portion extending longitudinally, and the two clamping portions are arranged on both sides of the two moving portions in the transverse direction. The clamping claw has a predetermined width in the clamping claw, and when the two clamping claws are in contact or there is a predetermined spacing, the two moving portions abut against each other.

[0022] In one implementation, a fixed bracket is provided on the moving part of one of the clamping connectors, the flip drive motor is mounted on the fixed bracket and moves with the moving part of the clamping connector; the fixed bracket includes a side plate opposite to the clamping connector in the transverse direction, the tail end of the flip drive motor is fixed to the side plate, and the output shaft of the head end is coaxially fixedly connected with the transmission shaft in the clamping connector;

[0023] Among them, the output shaft of the flip drive motor is fixedly connected to the shaft tube, one of the driving sprockets is fixed to the shaft tube, close to one side of the flip drive motor, and located on the outside of the moving part close to the flip drive motor, and the other driving sprocket is fixed to the shaft sleeve, and located on the outside of the moving part away from the flip drive motor.

[0024] In one implementation, the moving mechanism includes a moving motor, the moving motor is fixed to the base, a gear is fixed on the output shaft of the moving motor, the gear and the rack are meshed with each other, the rack is fixed to the frame, and the bottom of the frame is slidably connected to the base.

[0025] In one implementation, a controller is further included, which is electrically connected to the clamping mechanism, flipping mechanism, painting mechanism and moving mechanism, and is used to control the operation of the clamping mechanism, flipping mechanism, painting mechanism and moving mechanism according to a set program.

[0026] Compared with the prior art, this application has the following advantages and beneficial effects:

[0027] The present application provides a spraying device, wherein the clamping mechanism of the spraying device can automatically clamp the workpiece through two clamping jaws, and the flipping mechanism can drive the two clamping jaws to flip, and the paint spraying mechanism sprays paint on the surface of the workpiece during the flipping process of the workpiece, thereby avoiding the manual use of a spray gun, reducing the harm of the paint to the operator's body, and improving the painting efficiency.

[0028] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0030] Figure 1 is a schematic structural diagram of a spraying device shown in an embodiment of the present application;

[0031] Figure 2 is a schematic structural diagram of a clamping mechanism of a spraying device shown in an embodiment of the present application;

[0032] Figure 3 It is a schematic diagram of the structure of the flipping mechanism of the spraying device shown in the embodiment of the present application.

[0033] Figure numerals: 1, base; 2, clamping mechanism; 3, moving mechanism; 4, paint spraying mechanism; 5, driving rod; 6, clamping claw; 7, frame; 8, clamping connector; 9, flipping mechanism; 10, caster; 11, transmission shaft; 12, flipping driving motor; 13, baking lamp plate; 14, pillar; 1-1, bottom plate; 2-1, clamping driving motor; 2-3, threaded rod; 2-2, support plate; 3-1, moving motor; 4-1, paint spraying pump; 4-2, paint box; 4-21, 4-3, nozzle; 8-1, slider; 9-1, driving sprocket; 9-2, driven sprocket; 9-3, transmission chain; 12-1, fixed bracket; DETAILED DESCRIPTION

[0034] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0035] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0036] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0037] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] 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 this application can be understood according to specific circumstances.

[0039] In the related art, most painting methods involve manually using a spray gun to spray the surface to be painted, which results in low work efficiency. At the same time, the paint contains many toxic volatile substances, and workers are very likely to inhale a large amount of harmful substances, which threatens the health of workers. Some spraying devices also require manual clamping of the workpiece, and can only paint one side of the workpiece, and cannot automatically rotate to the other side to continue painting, which is extremely inconvenient to use and reduces the efficiency of painting. In response to the above problems, the present application provides a spraying device, which has the function of automatically clamping the workpiece and can automatically flip the workpiece, thereby improving the efficiency of painting.

[0040] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0041] like Figures 1 to 3 As shown, the present application provides a spraying device, including a clamping mechanism 2, a flipping mechanism 9 and a spraying mechanism 4; the clamping mechanism 2 includes a clamping drive motor 2-1, a threaded rod 2-3 and two clamping connectors 8 arranged opposite to each other, the clamping connector 8 is provided with a rotatable clamping jaw 6, the two clamping jaws 6 are used to clamp the workpiece, the two clamping connectors 8 are transmission-connected with the threaded rod 2-3, the clamping drive motor 2-1 is used to drive the threaded rod 2-3 to rotate, so that the two clamping connectors 8 are close to or away from each other; the flipping mechanism 9 includes a flipping drive motor 12, a transmission shaft 1 1 and a transmission mechanism, the flip drive motor 12 is used to drive the transmission shaft 11 to rotate, the transmission mechanism is connected between the clamping jaw 6 and the transmission shaft 11, and the transmission shaft 11 is used to drive the clamping jaw 6 to flip through the transmission mechanism; the paint spraying mechanism 4 includes a paint spraying pump 4-1, a paint box 4-2 and a nozzle 4-3, the paint spraying pump 4-1 is fixed to the paint box 4-2, the inlet end of the paint spraying pump 4-1 is connected to the paint box 4-2 through a first connecting pipe, the outlet end of the paint spraying pump 4-2 is connected to the nozzle 4-3 through a second connecting pipe, and the nozzle 4-3 is aligned with the middle of the two clamping jaws 6.

[0042] The spraying device provided in the present application has a clamping mechanism 2 that can automatically clamp the workpiece through two clamping jaws 6, and at the same time, a flipping mechanism 9 can drive the two clamping jaws 6 to flip, and a paint spraying mechanism 4 sprays paint on the surface of the workpiece during the flipping process of the workpiece, thereby avoiding the manual use of a spray gun, reducing the harm of the paint to the operator's body, and improving the painting efficiency.

[0043] In some embodiments, the spraying device also includes a frame and a moving mechanism 3, the frame includes a base 1 and two frames 7 installed on both sides of the base 1, and the two frames 7 are installed on the base 1 along the horizontal sliding direction; the moving mechanism 3 is arranged between the base 1 and the frame 7, and is used to drive the two frames 7 to move along the base 1.

[0044] Specifically, the base 1 includes a bottom plate 1-1, and four brakeable universal casters 10 are fixed to the lower end surface of the bottom plate 1-1 through pillars 14, which facilitates the movement of the equipment and can brake to prevent the equipment from shaking and moving during processing. The two frames 7 can be gantries, and the two frames 7 are arranged in parallel, and each frame 7 is slidably installed along the horizontal direction of the base 1, and the above-mentioned clamping mechanism 2 and flipping mechanism 9 are arranged between the two frames 7.

[0045] In some embodiments, the base 1 is provided with a shock-absorbing spring to prevent the entire device from vibrating at an excessively high frequency during operation, thereby affecting the overall stability.

[0046] Continue to see Figure 2In some embodiments, the clamping drive motor 2-1 is a bidirectional motor, and two threaded rods 2-3 are provided. The bidirectional motor is placed in the middle of the two threaded rods 2-3. The two output shafts of the bidirectional motor are arranged back to back and are respectively connected to the two threaded rods 2-3 in a one-to-one correspondence. The end of each threaded rod 2-3 away from the bidirectional motor is rotatably connected to the frame 7 through a bearing. When the clamping drive motor 2-1 is running, it can drive the two threaded rods 2-3 to rotate synchronously in the opposite direction, thereby driving the two clamping connectors 8 to move closer or farther away, completing the reciprocating motion of clamping and releasing the two claws. This embodiment uses a bidirectional motor to drive the two threaded rods 2-3 to rotate forward and reversely, and controls clamping or releasing by means of thread matching, so that the operation stability of the clamping mechanism 2 is better, thereby improving the control accuracy of clamping or releasing.

[0047] In some embodiments, the spraying device also includes a support frame 2-2, which is fixedly mounted on the frame 7; the bidirectional motor is fixed on the upper end surface of the support frame 2-2, and the clamping connector 8 is connected to the threaded rod 2-3 through the driving rod 5, one end of the driving rod 5 is fixed to the clamping connector 8, and the other end is threadedly connected to the corresponding threaded rod 2-3; wherein the driving rod 5 is provided with a screw hole, the screw hole is coaxially arranged with the threaded rod 2-3, and the threaded rod 2-3 is passed through the screw hole and threadedly connected to the screw hole.

[0048] The support frame 2-2 includes two vertical plates fixed to the frame 7 and a horizontal plate connected between the two vertical plates. The bidirectional motor is fixed to the middle of the upper end surface of the horizontal plate. The end of each threaded rod 2-3 away from the clamping drive motor 2-1 is rotatably connected to the vertical plate of the support frame 2-2 through a bearing.

[0049] The extension direction of the driving rod 5 is perpendicular to the axial direction of the threaded rod 2-3. One end of the driving rod 5 along the length direction is connected to the threaded rod 2-3 through a screw hole, and the other end is fixed to the clamping connector 8. When the threaded rod 2-3 rotates, the driving rod 5 can move in the axial direction of the threaded rod 2-3, and then the clamping connector 8 is driven to move through the driving rod 5.

[0050] Since the workpieces to be painted have different shapes and structures, it is necessary to ensure that the device grabs in the most secure position to prevent the workpiece from falling off. At the same time, after the first step of painting after grabbing the workpiece is completed, another plane needs to be sprayed, and the workpiece needs to be rotated to align the surface to be sprayed with the spray gun. To meet the above requirements, the present application designs a flip mechanism 9.

[0051] See also Figure 3In some embodiments, the flipping mechanism 9 includes two transmission mechanisms, each of which includes a driving sprocket 9-1, a driven sprocket 9-2 and a transmission chain; the driving sprocket 9-1 and the driven sprocket 9-2 of each transmission mechanism are connected through a transmission chain; the transmission shaft 11 is passed through the two clamping connectors 8, and the two transmission mechanisms are arranged on both sides of the two clamping connectors 8; wherein, the flipping drive motor 12 is fixed to one of the clamping connectors 8, and the output shaft of the flipping drive motor 12 is connected to the transmission shaft 11, the driving sprockets 9-1 of the two transmission mechanisms are connected through the transmission shaft 11, and are arranged at both ends of the transmission shaft 11, and the transmission shaft 11 is used to drive the two driving sprockets 9-1 to rotate; the driven sprockets 9-2 of the two transmission mechanisms are rotatably connected to the side of the clamping connector 8 away from the threaded rod 2-3, and are fixedly connected to the clamping claw 6 on the inner side of the clamping connector 8. After being configured in this way, the flipping mechanism 9 can drive the two clamping jaws 6 to flip on the outside of the two clamping connectors 8 without affecting the movement of the clamping jaws 6 in the clamping area. The chain transmission mechanism can ensure that the rotation angle of the two clamping jaws 6 is consistent when flipping, thereby reducing the error of the rotation angle of the clamping jaws 6 and avoiding scratches on the workpiece surface caused by errors in the flipping angles of the two clamping jaws 6.

[0052] In this embodiment, the transmission shaft 11 is passed through the two clamping connectors 8, and the driving sprockets 9-1, the driven sprockets 9-2 and the transmission chain of the two transmission mechanisms are located on the rear side of the clamping connector 8. The driving sprockets 9-1, the driven sprockets 9-2 and the transmission chain of the two transmission mechanisms overlap with the clamping connector 8 in the axial direction of the threaded rod 2-3 at least partially. This not only reduces the thickness of the device in the direction perpendicular to the threaded rod 2-3, making it convenient to arrange the paint spraying mechanism 4 on the side of the clamping jaws 6, but also reduces the structural setting in the middle area of ​​the two clamping connectors 8, so that an independent spraying space area can be formed between the two clamping connectors 8.

[0053] In some embodiments, the transmission shaft 11 includes a shaft tube and a shaft sleeve, and the shaft tube and the shaft sleeve are coaxially arranged, wherein the driving sprocket 9-1 of one transmission mechanism is installed on the shaft tube of the transmission shaft 11, and the driving sprocket 9-1 of the other transmission mechanism is installed on the shaft sleeve of the transmission shaft 11; one end of the shaft tube rotates through one of the clamping connectors 8 through the first bearing, and is fixedly connected to the output shaft of the clamping drive mechanism; one end of the shaft sleeve rotates through the other clamping connector 8 through the second bearing, and the other end of the shaft sleeve is slidably sleeved on the other end of the shaft tube. After being arranged in this way, the shaft tube can rotate relative to one of the clamping connectors 8, and the shaft sleeve can rotate relative to the other clamping connector 8, so that when the shaft tube and the shaft sleeve rotate, the axial movement of the two clamping connectors 8 will not be affected, that is, when the two clamping connectors 8 are close to or away from each other in the axial direction, the shaft tube and the shaft sleeve can rotate synchronously, so that the workpiece can be controlled to flip while the workpiece is clamped.

[0054] In this embodiment, the shaft sleeve and the shaft tube are splined to each other. After such arrangement, the movement between the shaft tube and the shaft sleeve is limited to the axial direction, and the shaft tube and the shaft sleeve will not produce relative rotation in the circumferential direction, thereby ensuring that the movement of the two clamping connectors 8 always remains in the axial direction of the threaded rod 2-3, which can further improve the movement accuracy of the two clamping connectors 8, avoid the looseness of the workpiece when clamped due to movement errors of the two clamping connectors 8, or avoid the relative displacement between the workpiece and the clamping jaws 6 when clamped, which may reduce the uniformity of paint spraying on the workpiece surface.

[0055] Continue to see Figure 1-Figure 3 In some embodiments, the clamping connector 8 is an inverted "L"-shaped frame, and the clamping jaw 6 is installed at the lower end of the "L"-shaped frame; the upper end of the inverted "L"-shaped frame is a laterally extending moving part, and the moving parts of the two inverted "L"-shaped frames are arranged opposite to each other; the first bearing is arranged at the moving part of one of the inverted "L"-shaped frames, and the second bearing is arranged at the moving part of the other inverted "L"-shaped frame; the lower end of the inverted "L"-shaped frame is a longitudinally extending clamping part, and the two clamping parts are arranged on both sides of the two moving parts in the transverse direction, and the clamping jaw 6 has a predetermined width in the clamping part, and when the two clamping jaws 6 are in contact or there is a predetermined spacing, the two moving parts abut against each other. After such an arrangement, when the two moving parts abut against each other, the two clamping jaws 6 can be limited in the transverse direction, thereby controlling the clamping force of the two clamping jaws 6, so that the pressure of the clamping jaws 6 on the surface of the workpiece can be accurately controlled.

[0056] In some embodiments, a fixed bracket 12-1 is provided on the moving part of one of the clamping connectors 8, and the flip drive motor 12 is mounted on the fixed bracket 12-1 and moves with the moving part of the clamping connector 8; the fixed bracket 12-1 includes a side plate opposite to the clamping connector 8 in the transverse direction, the tail end of the flip drive motor 12 is fixed to the side plate, and the output shaft of the head end is coaxially fixedly connected with the transmission shaft 11 in the clamping connector 8. In this embodiment, the output shaft of the flip drive motor 12 is fixedly connected to the shaft tube, one of the driving sprockets 9-1 is fixed to the shaft tube, close to one side of the flip drive motor 12, and is located on the outside of the moving part close to the flip drive motor 12, and the other driving sprocket 9-1 is fixed to the shaft sleeve, and is located on the outside of the moving part away from the flip drive motor 12.

[0057] See also Figure 1In some embodiments, a slider 8-1 is fixed on the top of the moving part, and the frame is provided with a through hole for accommodating the slider. The slider 9-1 is in the shape of an elongated strip. The slider 8-1 is passed through the through hole and is limited to sliding in the through hole. Specifically, the cross section of the slider 8-1 is in the shape of a "T", and the shape of the through hole matches the cross section of the slider 8-1, so that the movement of the slider 8-1 is limited to the length direction of the slider 8-1. In this embodiment, the slider 8-1, the threaded rod 2-3 and the transmission shaft 11 are parallel, and the slider 8-1, the threaded rod 2-3 and the transmission shaft 11 are located at the three vertices of a virtual triangle. Through the stability characteristics of the triangle, the moving part is limited to move in three parallel directions, further improving the movement stability of the clamping connector.

[0058] In this embodiment, the movable part is provided with a connecting part for connecting with the driving rod 5, and is provided with an axial hole for passing the transmission shaft 11. The opening directions of the screw hole and the axial hole on the driving rod 5 are parallel. In some embodiments, the screw hole and the axial hole have a predetermined spacing in a direction perpendicular to the threaded rod 2-3, or the screw hole and the axial hole are distributed on both sides of the movable part in a direction perpendicular to the threaded rod 2-3. After such arrangement, the movable part is limited to the movement of the threaded rod 2-3 through the screw hole. At the same time, the movable part is limited to the transmission shaft 11 through the axial hole. Since the threaded rod 2-3 and the transmission shaft 11 are parallel to each other, the movable part is limited to move in the direction of the mutually parallel threaded rod 2-3 and the rotating axis. The stability and accuracy of the movable part in the movement parallel to the axial direction of the threaded rod 2-3 can be improved, and the position accuracy and clamping stability of the clamping jaws 6 for clamping the workpiece can be further ensured, and the clamping force of the two clamps 6 on the workpiece can be accurately controlled.

[0059] In some embodiments, the clamping part is plate-shaped, the two clamping parts are parallel to each other, and a mounting hole is provided in the middle of the lower end of the clamping part, and the mounting hole is provided on the center line of the moving part. After such a setting, when the two moving parts are close to each other, the clamping force applied to both sides of the workpiece by the two clamping jaws 6 is equal, thereby improving the clamping stability. In some implementations, a bearing is provided at the mounting hole, and the shaft of the driven sprocket 9-2 on the outside of the clamping part passes through the bearing and is fixedly connected to the clamping jaw 6.

[0060] In some embodiments, the upper end surface of the paint box 4-2 is provided with a paint filling port 4-21, and a plug is installed at the paint filling port 4-21. The spraying device also includes a baking lamp board 13, and the lower end of the baking lamp board 13 is fixed to the upper end surface of the base 1, away from the paint spraying mechanism 4. When the painting is completed, the workpiece can be automatically moved to the baking lamp board 13 for baking, which is convenient to use and improves work efficiency.

[0061] In some embodiments, the moving mechanism 3 includes a moving motor 3-1, which is fixed to the base 1. A gear is fixed on the output shaft of the moving motor 3-1. The gear and the rack are meshed with each other. The rack is fixed to the frame 7. A slider 8-1 is provided at the bottom of the frame 7. The slider 8-1 is slidably connected to the slide groove on the base 1. The moving mechanism 3 enables the fixture to move between the spray gun and the baking lamp board.

[0062] In this embodiment, the nozzle is fixed relative to the base 1 and aligned with the middle of the two jaws 6. After the workpiece is fixed on the jaws 6, spraying is performed on the side of the jaws 6. A heating lamp plate 13 is provided on the other side of the jaws 6 away from the nozzle. After spraying, the workpiece is dried by the heating lamp plate 13. In this application, the moving mechanism 3 drives the frame 7 to move toward the nozzle 4-3, and then the spraying operation is performed. After the spraying is completed, the moving mechanism 3 drives the frame 7 to move toward the heating lamp plate 13 to achieve drying of the workpiece.

[0063] In some embodiments, the spraying device also includes a controller, which is electrically connected to the clamping mechanism 2, the flipping mechanism 9, the paint spraying mechanism 4 and the moving mechanism 3, and is used to control the operation of the clamping mechanism 2, the flipping mechanism 9, the paint spraying mechanism 4 and the moving mechanism 3 according to a set program, thereby realizing automatic painting.

[0064] The above embodiments are preferred implementation modes of the present application, but the implementation modes of the present application are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present application should be equivalent replacement methods and are included in the protection scope of the present application.

Claims

1. A spraying device, characterized in that: include: The clamping mechanism comprises a clamping drive motor, a threaded rod and two clamping connectors arranged opposite to each other, wherein the clamping connector is provided with a rotatable clamping jaw, the two clamping jaws are used to clamp a workpiece, the two clamping connectors are transmission-connected with the threaded rod, and the clamping drive motor is used to drive the threaded rod to rotate so that the two clamping connectors are moved closer to or farther away from each other; The flipping mechanism comprises a flipping drive motor, a transmission shaft and a transmission mechanism, wherein the flipping drive motor is used to drive the transmission shaft to rotate, the transmission mechanism is connected between the clamping jaw and the transmission shaft, and the transmission shaft is used to drive the clamping jaw to flip through the transmission mechanism; The paint spraying mechanism comprises a paint spraying pump, a paint box and a nozzle. The paint spraying pump is fixed to the paint box. The inlet end of the paint spraying pump is connected to the paint box through a first connecting pipe, and the outlet end of the paint spraying pump is connected to the nozzle through a second connecting pipe. The nozzle is aligned with the middle of the two clamping jaws.

2. The spraying device according to claim 1, characterized in that: It also includes a frame and a moving mechanism, the frame includes a base and two frames installed on both sides of the base, and the two frames are installed on the base along the horizontal sliding; the moving mechanism is arranged between the base and the frame, and is used to drive the two frames to move along the base.

3. The spraying device according to claim 2, characterized in that: The clamping drive motor is a bidirectional motor. Two threaded rods are provided. The bidirectional motor is placed in the middle of the two threaded rods. The two output shafts of the bidirectional motor are arranged back to back and are respectively connected to the two threaded rods one by one. One end of each threaded rod away from the bidirectional motor is rotatably connected to the frame through a bearing.

4. The spraying device according to claim 3, characterized in that: It also includes a support frame, which is fixedly mounted on the frame; the bidirectional motor is fixed to the upper end surface of the support frame, the clamping connector is connected to the threaded rod through a driving rod, one end of the driving rod is fixed to the clamping connector, and the other end is threadedly connected to the corresponding threaded rod; Wherein, the driving rod is provided with a screw hole, the screw hole is coaxially arranged with the threaded rod, and the threaded rod is passed through the screw hole and is threadedly connected with the screw hole.

5. The spraying device according to claim 2, characterized in that: The flip mechanism includes two transmission mechanisms, each of which includes a driving sprocket, a driven sprocket and a transmission chain; the driving sprocket and the driven sprocket of each transmission mechanism are connected by the transmission chain; The driving sprockets, driven sprockets and transmission chains of the two transmission mechanisms overlap at least partially with the clamping connector in the axial direction of the threaded rod, the transmission shaft passes through the two clamping connectors, and the two transmission mechanisms are arranged on both sides of the two clamping connectors; Among them, the flipping drive motor is fixed to one of the clamping connectors, the output shaft of the flipping drive motor is connected to the transmission shaft, the driving sprockets of the two transmission mechanisms are connected through the transmission shaft and are arranged at both ends of the transmission shaft, and the transmission shaft is used to drive the two driving sprockets to rotate; the driven sprockets of the two transmission mechanisms are rotatably connected to the side of the clamping connector away from the threaded rod, and are fixedly connected to the clamping claws on the inner side of the clamping connector.

6. The spraying device according to claim 5, characterized in that: The transmission shaft comprises a shaft tube and a shaft sleeve, wherein the driving sprocket of one of the transmission mechanisms is mounted on the shaft tube of the transmission shaft, and the driving sprocket of the other transmission mechanism is mounted on the shaft sleeve of the transmission shaft; One end of the shaft tube rotates through one of the clamping connectors through the first bearing and is fixedly connected to the output shaft of the clamping drive mechanism; one end of the shaft sleeve rotates through the other clamping connector through the second bearing, and the other end of the shaft sleeve is slidably sleeved on the other end of the shaft tube; Wherein, the shaft tube and the shaft sleeve are coaxially arranged, and the shaft sleeve and the shaft tube are spline-connected.

7. The spraying device according to claim 6, characterized in that: The clamping connector is an inverted "L"-shaped frame, and the clamping claw is installed at the lower end of the "L"-shaped frame; the upper end of the inverted "L"-shaped frame is a transversely extending moving part, and the moving parts of the two inverted "L"-shaped frames are arranged opposite to each other; the first bearing is arranged at the moving part of one of the inverted "L"-shaped frames, and the second bearing is arranged at the moving part of the other inverted "L"-shaped frame; The lower end of the inverted "L"-shaped frame is a clamping portion extending longitudinally, and the two clamping portions are arranged on both sides of the two moving portions in the transverse direction. The clamping claw has a predetermined width in the clamping claw, and when the two clamping claws are in contact or there is a predetermined spacing, the two moving portions abut against each other.

8. The spraying device according to claim 7, characterized in that: A fixed bracket is provided on the moving part of one of the clamping connectors, the flip drive motor is installed on the fixed bracket and moves with the moving part of the clamping connector; the fixed bracket includes a side plate opposite to the clamping connector in the transverse direction, the tail end of the flip drive motor is fixed to the side plate, and the output shaft of the head end is coaxially fixedly connected with the transmission shaft in the clamping connector; Among them, the output shaft of the flip drive motor is fixedly connected to the shaft tube, one of the driving sprockets is fixed to the shaft tube, close to one side of the flip drive motor, and located on the outside of the moving part close to the flip drive motor, and the other driving sprocket is fixed to the shaft sleeve, and located on the outside of the moving part away from the flip drive motor.

9. The spraying device according to claim 2, characterized in that: The moving mechanism comprises a moving motor, the moving motor is fixed to the base, a gear is fixedly mounted on the output shaft of the moving motor, the gear is meshed with a rack, the rack is fixed to the frame, and the bottom of the frame is slidably connected to the base.

10. The spraying device according to claim 9, characterized in that: It also includes a controller, which is electrically connected to the clamping mechanism, the turning mechanism, the painting mechanism and the moving mechanism, and is used to control the operation of the clamping mechanism, the turning mechanism, the painting mechanism and the moving mechanism according to a set program.

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