Spraying equipment for automobile production

Abstract

The invention discloses spraying equipment for automobile production, and relates to the field of spraying equipment.The spraying equipment comprises a sliding base and an air delivery pipe, a spraying mechanical arm is installed on the sliding base, a movable head is movably installed on the spraying mechanical arm, two spraying heads are arranged on the movable head, and the air delivery pipe is connected with the sliding base. The two spraying heads are both connected with the gas conveying pipe; and a switching box is mounted on the movable head. It needs to be explained that in the embodiment of the invention, when one spraying head is blocked, the gas pressure in the switching box is increased, the switching plate is made to move, the switching through hole in the switching plate corresponds to the other output hole, at the moment, high-pressure gas is input into the other spraying head through the auxiliary output pipe, and switching of gas conveying pipelines is achieved; and meanwhile, the L-shaped frame drives the two spraying heads to be switched, then the switching plate and the two spraying heads are switched synchronously, and therefore when the spraying heads are blocked, the purpose of automatic switching is achieved, and continuous spraying work is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of spraying equipment, and in particular to a spraying equipment used in automobile production. Background Art

[0002] Car spray painting refers to applying a layer of paint on the surface of the car to protect the car. Car spray painting generally uses baking paint. In the car manufacturing plant, after the frame and shell are welded, the next process is spray painting. There are ordinary paint, metallic paint, pearlescent paint, and car spray painting process: scraping putty, grinding, spraying, etc. It should be noted that in the production process of the car, the car is mainly sprayed with a spraying robot arm. When spraying, the multi-directional movement of the robot arm drives the spray head to move, and the paint is sprayed out by high-pressure gas to achieve the purpose of spraying the car.

[0003] However, in actual use, the spray robot arm has a long working time and high intensity, and the spray head is often blocked due to the characteristics of the paint itself or various reasons. When blocked, there is no corresponding backup measure. Therefore, once a blockage occurs, the machine can only be shut down for maintenance, which causes the spray production line to be suspended, seriously affecting the operation of the entire production process. In addition, since sufficient high-pressure gas is required during spraying, once the gas pipe is insufficient due to a failure or damage of the air compressor or a rupture of the pipeline, the spraying will be insufficient, which will lead to insufficient spraying, and then a large number of products with substandard paint quality will be produced. Summary of the invention

[0004] The object of the present invention is to provide a spraying device for automobile production to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A spraying device for automobile production, comprising a sliding base and an air pipe, wherein a spraying mechanical arm is mounted on the sliding base, a movable head is movably mounted on the spraying mechanical arm, two spraying heads are arranged on the movable head, and both of the two spraying heads are connected to the air pipe; A switching box is installed on the movable head, one end of the air supply pipe is connected to the switching box, an active switching mechanism is installed on the switching box, and the active switching mechanism is used to switch the two spray heads; the active switching mechanism includes a switching plate, the switching plate is movably installed in the switching box, a retraction sleeve is installed on the top side of the switching box, an upper top plate is movably installed in the retraction sleeve, a switching through hole is installed on one side of the switching plate, a limiting rod is installed on the bottom side of the upper top plate, a limiting frame is installed on the switching plate, the limiting rod is inserted on the limiting frame to limit the position of the switching plate, and the upper top plate moves up to drive the limiting rod to disengage from the limiting frame, so that the switching plate slides automatically; It also includes a spray head switching mechanism, which is mounted on the movable head and is used to perform rotational switching of the two spray heads; the spray head switching mechanism includes an L-shaped frame, the two spray heads are respectively mounted on both ends of the L-shaped frame, and the two spray heads are respectively connected to a main output pipe and an auxiliary output pipe, and the main output pipe and the auxiliary output pipe are both connected to the switching box; A blocking and sealing mechanism is also installed in the switching box, and the blocking and sealing mechanism is used to actively close the gas pipe; the blocking and sealing mechanism includes a closing plate, and the closing plate is rotatably installed on an inner wall of one side of the switching box, and a mounting frame is installed on the inner wall of the switching box, and a starting switch is installed on the bottom side of the mounting frame, and the starting switch is electrically connected to the spraying robot arm. The rotation of the closing plate is used to trigger the starting switch, so as to start the spraying robot arm.

[0006] Furthermore, in a preferred embodiment of the present invention, the active switching mechanism further comprises two limiting slide bars, the two ends of which are mounted on the inner walls of both sides of the switching box, the switching plate is provided with two transverse sliding grooves, and the two limiting slide bars are movably mounted in the two transverse sliding grooves respectively; A pull-back spring is installed on the inner wall of the transverse sliding groove, and the other end of the pull-back spring is installed on the limiting sliding rod. The pull-back spring pulls the switching plate to reset.

[0007] Furthermore, in a preferred embodiment of the present invention, an insertion hole is provided on the limiting frame, and the limiting rod is inserted into the insertion hole to limit the position of the switching plate; A connecting hole is provided on the top side of the switching box, the upper top plate is located in the connecting hole, a movable frame is installed on the top side of the upper top plate, the movable frame is movably installed in the retraction sleeve, a return spring is installed on the retraction sleeve, and the other end of the return spring is installed on the upper top plate.

[0008] Furthermore, in a preferred embodiment of the present invention, a plurality of output holes are provided on the inner walls of both sides of the switch box, and the gas delivery pipe is connected to one of the output holes; The switching plate is provided with a switching through hole, and the switching plate is connected with one of the output holes at a corresponding position through the switching through hole.

[0009] Furthermore, in a preferred embodiment of the present invention, a pulling hole is opened on one side of the switching box, a pulling handle is slidably installed in the pulling hole, the pulling handle is installed on the switching plate, and the switching plate is reset by moving the pulling handle.

[0010] Furthermore, in a preferred embodiment of the present invention, the spray head switching mechanism further comprises a switching gear, a mounting groove is provided on the movable head, and a switching shaft is rotatably mounted in the mounting groove; The L-shaped frame is sleeved on the switching shaft, the L-shaped frame rotates on the movable head through the switching shaft, and the switching gear is sleeved on the switching shaft.

[0011] Furthermore, in a preferred embodiment of the present invention, a rack is meshed on the switching gear, and the rack moves to drive the switching gear to rotate; The moving frame is provided with a synchronous frame, and the synchronous frame is provided on the rack frame. The moving frame moves by driving the rack frame through the synchronous frame.

[0012] Furthermore, in a preferred embodiment of the present invention, the blocking and sealing mechanism further comprises two mounting seats, and the two mounting seats are both mounted on the inner wall of the switch box; A torsion shaft is installed on the closing plate, and the torsion shaft is rotatably installed on the two mounting seats.

[0013] Furthermore, in a preferred embodiment of the present invention, a torsion hole is provided on the mounting seat, and the torsion shaft is rotatably mounted in the torsion hole; A torsion groove is annularly provided on the inner wall of the torsion hole, a torsion spring is installed on the inner wall of the torsion groove, and the other end of the torsion spring is installed on the torsion shaft.

[0014] Furthermore, in a preferred embodiment of the present invention, a screwing hole is opened on the inner wall of one side of the switching box, a screwing rod is rotatably installed in the screwing hole, the screwing rod is connected to the torsion shaft, and rotating the screwing rod drives the closing plate to rotate through the torsion shaft.

[0015] The beneficial effects of a spraying device for automobile production proposed by the present invention are: In the present invention, through the setting of the active switching mechanism, when one spray head is blocked, the gas pressure in the switching box increases, and then the upper top plate is squeezed and moved upward, driving the limiting rod to disengage from the insertion hole. At this time, the limiting frame is released from the restriction, and then under the return force of the two return springs, the switching plate is driven to move, so that the switching through hole on the switching plate corresponds to the other output hole, and then the high-pressure gas is input into the other spray head through the auxiliary output pipe, thereby realizing the switching of the gas supply pipeline.

[0016] Furthermore, in the present invention, through the setting of the spray head switching mechanism, when the mobile frame moves, it drives the synchronous frame to move, so that the synchronous frame drives the rack frame to move, and the rack frame drives the switching gear to rotate. At this time, the switching gear drives the L-shaped frame to rotate through the switching shaft, so that the L-shaped frame drives the two spray heads to switch, and then the switching plate and the two spray heads are switched synchronously. Therefore, when the spray head is blocked, the purpose of automatic switching is achieved to ensure the continuous progress of the spraying work.

[0017] Furthermore, in the present invention, by setting a blocking and closing mechanism, when a fault occurs at the gas transmission end, causing gas supply interruption or insufficient gas supply, the torsion shaft drives the closing plate to reset under the rotational force of the two torsion springs. At this time, the closing plate disengages from the starting switch and the switching box is closed at the same time, thereby achieving the purpose of automatically closing the spray robot arm and avoiding the problem of poor spraying quality caused by gas supply reasons. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a spraying device for automobile production provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a spray head of a spraying device for automobile production provided by an embodiment of the present invention connected to an active switching mechanism and other structures; Figure 3 A schematic diagram of a structure of a switch plate and a closing plate and other structures connected to a spraying equipment for automobile production provided by an embodiment of the present invention; Figure 4 A schematic diagram of a partial structure of a switch plate and a pull handle and other structures connected to a spraying device for automobile production provided by an embodiment of the present invention; Figure 5 A schematic diagram of a partial cross-sectional structure of a switch box and a retracting sleeve and other structures connected to a spraying equipment for automobile production provided by an embodiment of the present invention; Figure 6 A schematic cross-sectional view of a structure of a switch plate and a limiting slide bar etc. connected to a spraying device for automobile production provided by an embodiment of the present invention; Figure 7A schematic diagram of the structure of a connection between a limiting frame and a limiting rod and other structures of a spraying equipment for automobile production provided by an embodiment of the present invention; Figure 8 A schematic diagram of the structure of a switching gear and a rack rack and other structures connected to a spraying equipment for automobile production provided by an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of a connection between a closing plate and a mounting seat and other structures of a spraying device for automobile production provided by an embodiment of the present invention; Fig.10 A partial cross-sectional structural schematic diagram of the connection between a closing plate and a mounting seat and other structures of a spraying equipment for automobile production provided by an embodiment of the present invention.

[0019] In the figure: 1-sliding base; 2-spraying robot arm; 3-movable head; 4-spraying head; 5-air pipe; 6-switching box; 7-active switching mechanism; 701-switching plate; 702-switching through hole; 703-limiting frame; 704-retracting sleeve; 705-upper top plate; 706-moving frame; 707-reset spring; 708-limiting plug rod; 709-connecting hole; 710-transverse sliding groove; 711-limiting sliding rod; 712-pull back spring; 713-pulling hole; 714-pulling handle; 715-insertion Hole; 716-output hole; 8-spray head switching mechanism; 801-L-type frame; 802-switching shaft; 803-switching gear; 804-rack frame; 805-synchronous frame; 806-mounting groove; 807-main output pipe; 808-auxiliary output pipe; 9-blocking and closing mechanism; 901-closing plate; 902-mounting seat; 903-mounting frame; 904-start switch; 905-torsion hole; 906-torsion shaft; 907-torsion groove; 908-torsion spring; 909-twisting rod; 910-twisting hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In addition, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when in use, 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "perpendicular" and the like do not mean that the components are required to be absolutely vertical, but can be slightly tilted. For example, "vertical" only means that its direction is more vertical than "horizontal", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to the attached manual Figure 1-10 A spraying device for automobile production provided by an embodiment of the present invention includes a sliding base 1 and an air pipe 5. A spraying robot arm 2 is installed on the sliding base 1. A movable head 3 is movably installed on the spraying robot arm 2. Two spraying heads 4 are arranged on the movable head 3. Both spraying heads 4 are connected to the air pipe 5.

[0027] To be more specific, a switching box 6 is installed on the movable head 3, one end of the air supply pipe 5 is connected to the switching box 6, an active switching mechanism 7 is installed on the switching box 6, and the active switching mechanism 7 is used to switch the two spray heads 4; the active switching mechanism 7 includes a switching plate 701, the switching plate 701 is movably installed in the switching box 6, a retraction sleeve 704 is installed on the top side of the switching box 6, an upper top plate 705 is movably installed in the retraction sleeve 704, a switching through hole 702 is installed on one side of the switching plate 701, a limiting rod 708 is installed on the bottom side of the upper top plate 705, a limiting frame 703 is installed on the switching plate 701, the limiting rod 708 is inserted on the limiting frame 703 to limit the position of the switching plate 701, and the upper top plate 705 moves upward to drive the limiting rod 708 to disengage from the limiting frame 703, so that the switching plate 701 slides automatically. It should be noted that, in the embodiment of the present invention, when a spray head 4 is blocked, the gas pressure in the switching box 6 increases, and the upper top plate 705 is squeezed and moved upward. The upper top plate 705 moves to drive the moving frame 706 to move, and drives the return spring 707 to be subjected to force; in addition, when the upper top plate 705 moves, it simultaneously drives the limiting rod 708 to move, so that the limiting rod 708 disengages from the insertion hole 715. At this time, the limiting frame 703 is released from the restriction, and then under the return force of the two return springs 712, the switching plate 701 is driven to move, so that the switching through hole 702 on the switching plate 701 corresponds to the other output hole 716, and then the high-pressure gas is input into the other spray head 4 through the auxiliary output pipe 808, which can ensure the continuous progress of the spraying work and avoid the problem of interruption of the spraying work caused by blockage.

[0028] For further information, please refer to the attached manual. Figure 8 A spraying device for automobile production provided by an embodiment of the present invention also includes a spray head switching mechanism 8, which is installed on the movable head 3, and the spray head switching mechanism 8 is used to rotate and switch the two spray heads 4; specifically, the spray head switching mechanism 8 includes an L-shaped frame 801, and the two spray heads 4 are respectively installed at both ends of the L-shaped frame 801, and the two spray heads 4 are respectively connected to a main output pipe 807 and an auxiliary output pipe 808, and the main output pipe 807 and the auxiliary output pipe 808 are both connected to the switching box 6. It should be noted that, in the embodiment of the present invention, when the movable frame 706 moves, it drives the synchronous frame 805 to move, so that the synchronous frame 805 drives the rack frame 804 to move, and the rack frame 804 drives the switching gear 803 to rotate. At this time, the switching gear 803 drives the L-shaped frame 801 to rotate through the switching shaft 802, so that the L-shaped frame 801 drives the two spray heads 4 to switch, so that the switching plate 701 and the two spray heads 4 are switched synchronously. Therefore, when the spray head 4 is blocked, the purpose of automatic switching is achieved to ensure the continuous progress of the spraying work.

[0029] More specifically, a blocking and sealing mechanism 9 is also installed in the switching box 6, and the blocking and sealing mechanism 9 is used to actively close the gas pipe 5; the blocking and sealing mechanism 9 includes a closing plate 901, which is rotatably mounted on one side inner wall of the switching box 6, and a mounting frame 903 is mounted on the inner wall of the switching box 6, and a starting switch 904 is mounted on the bottom side of the mounting frame 903, and the starting switch 904 is electrically connected to the spraying robot arm 2. The closing plate 901 is rotated to trigger the starting switch 904, and then used to start the spraying robot arm 2. It should be noted that in the embodiment of the present invention, when a fault occurs at the gas transmission end, causing the gas supply to be interrupted or insufficient, at this time, under the rotation force of the two torsion springs 908, the closing plate 901 is reset, and at this time, the closing plate 901 is separated from the starting switch 904, and the switching box 6 is closed at the same time, so as to achieve the purpose of automatically closing the spraying robot arm 2, and avoid the problem of poor spraying quality caused by gas supply.

[0030] For further information, please refer to the attached manual. Figure 3-7 In a spraying device for automobile production provided by an embodiment of the present invention, the active switching mechanism 7 further includes two limiting slide bars 711, both ends of which are mounted on the inner walls of both sides of the switching box 6, and two transverse sliding grooves 710 are provided on the switching plate 701, and the two limiting slide bars 711 are movably mounted in the two transverse sliding grooves 710 respectively; In addition, a pull-back spring 712 is installed on the inner wall of the transverse slide groove 710, and the other end of the pull-back spring 712 is installed on the limiting slide bar 711. The pull-back spring 712 pulls the switching plate 701 to reset. It should be noted that in the embodiment of the present invention, when the spray head 4 is blocked, the switch plate 701 is driven to move under the pull-back force of the two pull-back springs 712, so that the switching through hole 702 on the switch plate 701 corresponds to the other output hole 716, and then the high-pressure gas is input into the other spray head 4 through the auxiliary output pipe 808, so as to ensure the continuous spraying work.

[0031] Please continue to refer to the instruction manual Figure 3-7, more specifically, in the embodiment of the present invention, an insertion hole 715 is provided on the limiting frame 703, and the limiting rod 708 is inserted into the insertion hole 715, so as to limit the position of the switching plate 701; in addition, a connecting hole 709 is provided on the top side of the switching box 6, and the upper top plate 705 is located in the connecting hole 709, and a moving frame 706 is installed on the top side of the upper top plate 705, and the moving frame 706 is movably installed in the retracting sleeve 704, and a return spring 707 is installed on the retracting sleeve 704, and the other end of the return spring 707 is installed on the upper top plate 705. It should be noted that in the embodiment of the present invention, the air pressure in the switching box 6 increases, so that the upper top plate 705 is squeezed and moved upward, and the upper top plate 705 moves to drive the moving frame 706 to move, and drives the return spring 707 to bear force, and when the upper top plate 705 moves, it simultaneously drives the limiting rod 708 to move, so that the limiting rod 708 is separated from the insertion hole 715, so as to achieve the purpose of releasing the restriction of the switching plate 701.

[0032] More specifically, in the embodiment of the present invention, a plurality of output holes 716 are provided on the inner walls of both sides of the switch box 6, and the gas delivery pipe 5 is connected to one of the output holes 716; in addition, a switching through hole 702 is provided on the switch plate 701, and the switch plate 701 is connected to one of the output holes 716 at the corresponding position through the switching through hole 702. It should be noted that in the embodiment of the present invention, the switch plate 701 is connected to one of the output holes 716 at the corresponding position through the switching through hole 702, so as to complete the switching work of the main output pipe 807 or the auxiliary output pipe 808.

[0033] Please continue to refer to the instruction manual Figure 3-7 More specifically, in the embodiment of the present invention, a pulling hole 713 is provided on one side of the switch box 6, a pulling handle 714 is slidably installed in the pulling hole 713, the pulling handle 714 is installed on the switch plate 701, and the pulling handle 714 is moved to reset the switch plate 701. It should be noted that in the embodiment of the present invention, when the switch plate 701 needs to be reset, the pulling handle 714 slides in the pulling hole 713, so that the pulling handle 714 drives the switch plate 701 to move.

[0034] For further information, please refer to the attached manual. Figure 8 In the embodiment of the present invention, the spray head switching mechanism 8 further includes a switching gear 803, a mounting slot 806 is provided on the movable head 3, and a switching shaft 802 is rotatably mounted in the mounting slot 806; in addition, the L-shaped frame 801 is sleeved on the switching shaft 802, the L-shaped frame 801 rotates on the movable head 3 through the switching shaft 802, and the switching gear 803 is sleeved on the switching shaft 802. It should be noted that in the embodiment of the present invention, when the L-shaped frame 801 rotates, it rotates on the movable head 3 through the switching shaft 802, thereby realizing the switching of the two spray heads 4.

[0035] More specifically, in the embodiment of the present invention, the switching gear 803 is meshed with a rack frame 804, and the rack frame 804 moves to drive the switching gear 803 to rotate; in addition, the moving frame 706 is mounted with a synchronous frame 805, and the synchronous frame 805 is mounted on the rack frame 804, and the moving frame 706 moves by driving the rack frame 804 to move through the synchronous frame 805. It should be noted that in the embodiment of the present invention, when the moving frame 706 moves, the rack frame 804 is driven to move through the synchronous frame 805, so that the rack frame 804 drives the switching gear 803 to rotate, thereby realizing the rotation of the L-shaped frame 801.

[0036] For further information, please refer to the attached manual. Figure 9-10 In a spraying device for automobile production provided by an embodiment of the present invention, the blocking and sealing mechanism 9 further includes two mounting seats 902, both of which are mounted on the inner wall of the switching box 6; in addition, a torsion shaft 906 is mounted on the closing plate 901, and the torsion shaft 906 is rotatably mounted on the two mounting seats 902. It should be noted that in the embodiment of the present invention, when the torsion shaft 906 rotates, it rotates on the two mounting seats 902, so that the torsion shaft 906 drives the closing plate 901 to rotate.

[0037] More specifically, in the embodiment of the present invention, a torsion hole 905 is provided on the mounting seat 902, and the torsion shaft 906 is rotatably installed in the torsion hole 905; in addition, a torsion groove 907 is provided in an annular shape on the inner wall of the torsion hole 905, and a torsion spring 908 is installed on the inner wall of the torsion groove 907, and the other end of the torsion spring 908 is installed on the torsion shaft 906. It should be noted that in the embodiment of the present invention, when the torsion shaft 906 rotates, it rotates in the torsion groove 907 and drives the torsion spring 908 to be subjected to force, so that the torsion shaft 906 automatically rotates under the resilience of the torsion spring 908.

[0038] Please continue to refer to the instruction manual Figure 9-10 More specifically, in the embodiment of the present invention, a screw hole 910 is provided on the inner wall of one side of the switch box 6, and a screw rod 909 is rotatably installed in the screw hole 910. The screw rod 909 is connected to the torsion shaft 906, and the screw rod 909 is rotated to drive the closing plate 901 to rotate through the torsion shaft 906. It should be noted that in the embodiment of the present invention, when the screw rod 909 is rotated, the screw rod 909 rotates in the screw hole 910, and drives the closing plate 901 to rotate through the torsion shaft 906, so that the closing plate 901 can be opened.

[0039] In summary, the working principle of a spraying device for automobile production provided by an embodiment of the present invention is: By setting up the L-shaped frame 801, two spray heads 4 can be installed at the same time. In actual use, one can be used as a common spray head and the other as a spare. When supplying gas, the gas supply pipe 5 inputs the high-pressure gas into the switching box 6, and then enters the output hole 716 at the corresponding position through the switching through hole 702 on the switching plate 701, and then inputs it into the corresponding spray head 4 through the main output pipe 807 to achieve spraying; it should be noted that when the spray head 4 is blocked, the gas pressure in the switching box 6 increases, so that the upper top plate 705 is squeezed and moved upward, and the upper top plate 705 moves to drive the moving plate 705 to move upward. The movable frame 706 moves, and drives the return spring 707 to be stressed, and when the upper top plate 705 moves, it synchronously drives the limiting rod 708 to move, so that the limiting rod 708 is separated from the insertion hole 715. At this time, the limiting frame 703 is released from the restriction, and then under the pull-back force of the two pull-back springs 712, the switching plate 701 is driven to move, so that the switching through hole 702 on the switching plate 701 corresponds to the other output hole 716, and then the high-pressure gas is input into the other spray head 4 through the auxiliary output pipe 808, and the limiting frame 703 presses against the limiting rod 708 to prevent the switching plate 701 from moving; Furthermore, when the moving frame 706 moves, it drives the synchronous frame 805 to move, so that the synchronous frame 805 drives the rack frame 804 to move, and the rack frame 804 drives the switching gear 803 to rotate. At this time, the switching gear 803 drives the L-shaped frame 801 to rotate through the switching shaft 802, so that the L-shaped frame 801 drives the two spray heads 4 to switch, and then the switching plate 701 and the two spray heads 4 are switched synchronously, so that when the spray head 4 is blocked, the purpose of automatic switching is achieved to ensure the continuous progress of the spraying work; Furthermore, if a fault occurs at the gas transmission end, causing gas supply interruption or insufficient gas supply, the torsion shaft 906 drives the closing plate 901 to reset under the rotational force of the two torsion springs 908. At this time, the closing plate 901 disengages from the starting switch 904 and closes the switching box 6, thereby achieving the purpose of automatically closing the spray robot arm 2 and avoiding the problem of poor spraying quality due to gas supply reasons. In addition, when in use, turn on the gas supply, and then turn the screw rod 909 to drive the torsion shaft 906 to rotate, thereby driving the closing plate 901 to rotate and triggering the starting switch 904 to open the spray robot arm 2. The rotation angle of the closing plate 901 is maintained through the continuous input of high-pressure gas, so that the spray robot arm 2 can continue to operate.

[0040] The above description is only a preferred specific implementation manner 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 scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spraying equipment for automobile production, characterized in that: It comprises a sliding base and an air pipe, a spraying mechanical arm is installed on the sliding base, a movable head is movably installed on the spraying mechanical arm, two spraying heads are arranged on the movable head, and both of the two spraying heads are connected to the air pipe; A switching box is installed on the movable head, one end of the air supply pipe is connected to the switching box, an active switching mechanism is installed on the switching box, and the active switching mechanism is used to switch the two spray heads; the active switching mechanism includes a switching plate, the switching plate is movably installed in the switching box, a retraction sleeve is installed on the top side of the switching box, an upper top plate is movably installed in the retraction sleeve, a switching through hole is installed on one side of the switching plate, a limiting rod is installed on the bottom side of the upper top plate, a limiting frame is installed on the switching plate, the limiting rod is inserted on the limiting frame to limit the position of the switching plate, and the upper top plate moves up to drive the limiting rod to disengage from the limiting frame, so that the switching plate slides automatically; It also includes a spray head switching mechanism, which is mounted on the movable head and is used to perform rotational switching of the two spray heads; the spray head switching mechanism includes an L-shaped frame, the two spray heads are respectively mounted on both ends of the L-shaped frame, and the two spray heads are respectively connected to a main output pipe and an auxiliary output pipe, and the main output pipe and the auxiliary output pipe are both connected to the switching box; A blocking and sealing mechanism is also installed in the switching box, and the blocking and sealing mechanism is used to actively close the gas pipe; the blocking and sealing mechanism includes a closing plate, and the closing plate is rotatably installed on an inner wall of one side of the switching box, and a mounting frame is installed on the inner wall of the switching box, and a starting switch is installed on the bottom side of the mounting frame, and the starting switch is electrically connected to the spraying robot arm. The rotation of the closing plate is used to trigger the starting switch, so as to start the spraying robot arm.

2. A spraying equipment for automobile production according to claim 1, characterized in that: The active switching mechanism further comprises two limiting slide bars, both ends of which are mounted on the inner walls of both sides of the switching box, the switching plate is provided with two transverse sliding grooves, and the two limiting slide bars are movably mounted in the two transverse sliding grooves respectively; A pull-back spring is installed on the inner wall of the transverse sliding groove, and the other end of the pull-back spring is installed on the limiting sliding rod. The pull-back spring pulls the switching plate to reset.

3. A spraying equipment for automobile production according to claim 2, characterized in that: The limiting frame is provided with an insertion hole, and the limiting rod is inserted into the insertion hole to limit the position of the switching plate; A connecting hole is provided on the top side of the switching box, the upper top plate is located in the connecting hole, a movable frame is installed on the top side of the upper top plate, the movable frame is movably installed in the retraction sleeve, a return spring is installed on the retraction sleeve, and the other end of the return spring is installed on the upper top plate.

4. A spraying equipment for automobile production according to claim 3, characterized in that: A plurality of output holes are provided on the inner walls of both sides of the switch box, and the gas delivery pipe is connected to one of the output holes; The switching plate is provided with a switching through hole, and the switching plate is connected with one of the output holes at a corresponding position through the switching through hole.

5. The spraying equipment for automobile production according to claim 4, characterized in that: A pulling hole is opened on one side of the switching box, a pulling handle is slidably installed in the pulling hole, and the pulling handle is installed on the switching plate. The switching plate is reset by moving the pulling handle.

6. The spraying equipment for automobile production according to claim 5, characterized in that: The spray head switching mechanism also includes a switching gear, and a mounting groove is provided on the movable head, and a switching shaft is rotatably mounted in the mounting groove; The L-shaped frame is sleeved on the switching shaft, the L-shaped frame rotates on the movable head through the switching shaft, and the switching gear is sleeved on the switching shaft.

7. The spraying equipment for automobile production according to claim 6, characterized in that: The switching gear is meshed with a rack rack, and the rack rack moves to drive the switching gear to rotate; The moving frame is provided with a synchronous frame, and the synchronous frame is provided on the rack frame. The moving frame moves by driving the rack frame through the synchronous frame.

8. The spraying equipment for automobile production according to claim 1, characterized in that: The blocking and sealing mechanism further comprises two mounting seats, both of which are mounted on the inner wall of the switch box; A torsion shaft is installed on the closing plate, and the torsion shaft is rotatably installed on the two mounting seats.

9. The spraying equipment for automobile production according to claim 8, characterized in that: The mounting seat is provided with a torsion hole, and the torsion shaft is rotatably mounted in the torsion hole; A torsion groove is annularly provided on the inner wall of the torsion hole, a torsion spring is installed on the inner wall of the torsion groove, and the other end of the torsion spring is installed on the torsion shaft.

10. The spraying equipment for automobile production according to claim 9, characterized in that: A screwing hole is provided on an inner wall of one side of the switch box, a screwing rod is rotatably installed in the screwing hole, the screwing rod is connected to the torsion shaft, and the closing plate is driven to rotate through the torsion shaft by rotating the screwing rod.

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