Automatic covering and spraying equipment and method for pipe fittings

Abstract

The automatic covering and spraying equipment comprises a base arranged below a pipe fitting and two coordinate trusses arranged above the pipe fitting, a spraying tool for the pipe fitting is arranged on the two coordinate trusses, and the spraying tool is slidably connected with a linear module arranged on the two coordinate trusses through a lifting mechanism; a transverse guide rail parallel to the two coordinate trusses is arranged on the base, a plurality of sets of covering tools for the pipe fitting are installed on the transverse guide rail in a sliding mode, and the covering tools are arranged in the sliding direction; each shielding tool comprises a transverse adjusting frame, a supporting piece, a front shielding piece and a rear shielding piece, the front shielding piece and the rear shielding piece are used for supporting the pipe fitting and shielding the corresponding area, a longitudinal guide rail is arranged on the transverse adjusting frame, the supporting piece is fixed in the middle of the longitudinal guide rail, and sliding seats in sliding fit with the longitudinal guide rail are arranged at the bottoms of the front shielding piece and the rear shielding piece. Automatic covering spraying of the pipe fitting is achieved, manual operation is not needed, the equipment is beneficial to automatic transformation and embedding into a production line, and the spraying efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pipe fitting processing and spraying, and particularly relates to a pipe fitting automatic covering and spraying device and method. BACKGROUND

[0002] Based on automation and information control technology, the pipe fitting processing production line is moving towards automation, unmanned and informatization, which is the future development trend. The pipe fitting processing production involves traditional operation processes such as cutting, welding and spraying, and still relies on a large number of manual operations at present, which is in a "semi-automatic and semi-manual" production mode. The current process of existing spraying operation realizes covering and spraying by manually pasting or tearing off masking tape before and after spraying, and manual operation is low in efficiency and harmful to health due to paint gas, so the spraying equipment needs to be upgraded. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a pipe fitting automatic covering and spraying device and method which are reasonable in design, reasonable in structure, controllable in cost, realize automatic covering and spraying, and are convenient for linkage with the front and rear of the production line, aiming at the deficiencies of the prior art. The device realizes automatic covering and spraying and is convenient for linkage with the front and rear of the production line, saves labor, improves spraying efficiency and qualified rate, and provides technical support for the construction of unmanned pipe fitting production line.

[0004] Another technical problem to be solved by the present application is to provide a method for completing pipe fitting automatic covering and spraying by using the above-mentioned pipe fitting automatic covering and spraying device, aiming at the deficiencies of the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A pipe fitting automatic covering and spraying device, characterized in that the device comprises a base provided below the pipe fitting and two coordinate trusses provided above the pipe fitting, a spraying tool for the pipe fitting is arranged on the two coordinate trusses, the spraying tool is slidably connected to a linear module provided on the two coordinate trusses through a lifting mechanism, a transverse guide rail parallel to the two coordinate trusses is arranged on the base, a covering tool for the pipe fitting is slidably installed on the transverse guide rail, and a plurality of groups of covering tools are arranged along the sliding direction. Each group of covering tools comprises a transverse adjusting frame slidably connected to the transverse guide rail, a supporting piece for supporting the pipe fitting, a front covering piece and a rear covering piece for realizing the support of the pipe fitting and the covering of the corresponding area, the front covering piece and the rear covering piece are arranged on the front side and the rear side of the pipe fitting respectively, the supporting piece is arranged below the pipe fitting, a longitudinal guide rail is arranged on the transverse adjusting frame, the supporting piece is fixed to the middle part of the longitudinal guide rail, a slide seat slidably matched with the longitudinal guide rail is arranged at the bottom of the front covering piece and the rear covering piece, and a first power mechanism for driving the front covering piece and the rear covering piece to move forward and backward is arranged on the transverse adjusting frame. The spraying tool comprises a plurality of spray heads distributed along the circumference of the pipe fitting, and a lifting frame on which the spray heads are installed, and the lifting frame is installed on the lifting mechanism.

[0006] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the linear module includes a linear guide rail fixed on a two-coordinate truss and a sliding seat that slides with the linear guide rail; the lifting mechanism is installed on the sliding seat; and a first driving mechanism is provided on the two-coordinate truss to drive the sliding seat to move left and right, thereby realizing the left and right movement of the spraying fixture.

[0007] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the lifting mechanism is provided with a lifting cylinder fixedly connected to the lifting frame, the cylinder body of the lifting cylinder is fixedly on the sliding seat, and the piston rod of the lifting cylinder is fixedly connected to the lifting frame to realize the up and down movement of the spraying fixture.

[0008] The technical problem to be solved by the present invention can also be achieved by the following technical solution: four spray nozzles are provided, which are symmetrically distributed along the circumference of the pipe at the front upper, front lower, rear upper, and rear lower of the pipe, so that the spraying range covers the pipe 360 ​​degrees.

[0009] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the front cover and the rear cover are both semi-circular contoured structures that cooperate with the pipe to achieve complete coverage of the parts of the pipe that need to be covered.

[0010] The technical problem to be solved by the present invention can also be achieved by the following technical solution: the support member is a support plate with a V-shaped groove on the top, and the bottom of the support plate is fixed on the horizontal adjustment frame to realize the support of the pipe under the uncovered condition.

[0011] A method for using the aforementioned automatic masking and spraying equipment for pipe fittings, characterized in that the method includes the following steps: First, prenatal preparation Based on the current product support and masking requirements, adjust the number and position of the masking fixtures, and move the spraying fixtures above the initial spraying position; Second, pipe fittings feeding. Place the pipe fitting in the designated position, align the covering position with the covering fixture, and support it with the support component; Third, pipe fitting cover The first power mechanism is activated, and the front and rear cover parts move towards and close the pipe fitting, covering and supporting the portion of the pipe fitting that needs to be covered. Pipe Spraying The spraying fixture mounted on the two coordinate trusses is activated. The spraying fixture is lowered to the designated position by the lifting mechanism, so that the nozzles are symmetrically arranged around the pipe fitting in a circular manner. The nozzles are activated to start spraying. While spraying, the spraying fixture moves left and right under the guidance of the linear module. After spraying is completed, each fixture is reset, and the pipe fitting is unloaded and transferred to the subsequent process.

[0012] Compared with existing technologies, this invention, by setting up a spraying fixture and several masking fixtures, can adjust and accommodate workpieces of various sizes by changing the fixtures and their positions and numbers. It also facilitates the automation transformation of the spraying process and its integration into production lines, effectively improving spraying efficiency, protecting personnel health, and providing technical support for the construction of unmanned pipe processing production lines. By setting up several masking fixtures, pipe support and corresponding area masking are achieved, making the equipment highly flexible in use. With multiple sets of spray heads surrounding the pipe, the spraying range covers the pipe 360 ​​degrees, and the pipe does not need to rotate during spraying.

[0013] This invention has a reasonable structure and controllable cost, realizing automated masking and spraying of pipe fittings, saving labor, improving spraying efficiency and pass rate, and providing technical support for the construction of unmanned pipe processing production lines. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the masking spraying equipment.

[0015] Figure 2 This is a three-dimensional structural diagram of the spraying fixture.

[0016] Figure 3 A three-dimensional structural diagram of the tooling to be concealed.

[0017] Figure 4 A three-dimensional structural diagram to conceal the closed tooling.

[0018] In the diagram: 1-base, 2-two-coordinate truss, 3-spraying fixture, 4-masking fixture, 5-pipe fitting, 6-transverse guide rail, 7-transverse adjustment frame, 8-support component, 9-linear guide rail, 10-sliding seat, 11-lifting cylinder, 12-first drive mechanism, 13-spray head, 14-lifting frame, 15-first power mechanism, 16-front masking component, 17-rear masking component, 18-longitudinal guide rail, 19-bracket, 20-sliding seat. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Reference Figures 1-4 An automatic pipe fitting masking and spraying device includes a base 1 located below the pipe fitting and a two-coordinate truss 2 located above the pipe fitting. A spraying fixture 3 for the pipe fitting is provided on the two-coordinate truss 2. The spraying fixture 3 is slidably connected to a linear module on the two-coordinate truss 2 via a lifting mechanism. A transverse guide rail 6 is provided on the base 1 and is parallel to the two-coordinate truss. A masking fixture 4 for the pipe fitting is slidably installed on the transverse guide rail 6. Several sets of masking fixtures 4 are provided along the sliding direction. The masking fixtures can be added or removed according to the workpiece support and masking requirements. The number of masking fixtures is ≥2, and the position of each masking fixture can be freely adjusted and fixed. Each set of covering fixtures 4 includes a transverse adjustment frame 7 that slides with the transverse guide rail 6, a support member 8 for supporting the pipe, and a front covering member 16 and a rear covering member 17 for supporting the pipe and covering the corresponding area. The front covering member 16 and the rear covering member 17 are respectively located on the front and rear sides of the pipe. The support member 8 is located below the pipe. The transverse adjustment frame 7 is provided with a longitudinal guide rail 18. The support member 8 is fixed in the middle of the longitudinal guide rail 18. The bottom of the front covering member 16 and the rear covering member 17 is provided with a slide seat 20 that slides with the longitudinal guide rail 18. The front covering member 16 and the rear covering member 17 are mounted on the slide seat 20 through a bracket 19. A first power mechanism 15 for driving the front covering member 16 and the rear covering member 17 to move back and forth is installed on the transverse adjustment frame 7. The first power mechanism can be any telescopic mechanism such as a drive cylinder, a pneumatic cylinder, an oil cylinder, an electric cylinder, etc. The spraying fixture 3 includes several spray heads 13 distributed along the circumference of the pipe fitting, and a lifting frame 14 for mounting the spray heads 13. The lifting frame 14 is fixedly connected to the lifting mechanism to realize the left and right and up and down two degrees of freedom movement of the spray heads, and the operating range covers the spraying range of the pipe fitting.

[0022] The linear module includes a linear guide rail 9 fixed on a two-coordinate truss 2 and a sliding seat 10 that slides with the linear guide rail 9. The lifting mechanism is installed on the sliding seat 10. The two-coordinate truss 2 is provided with a first driving mechanism 12 for driving the sliding seat to move left and right. The first driving mechanism can be a gear and rack mechanism, a sprocket and chain mechanism, or any driving structure that can drive the sliding seat to move horizontally. Taking a gear and rack mechanism as an example, the gear and rack mechanism includes a rack on the linear guide rail, a gear that cooperates with the rack and is mounted on the sliding seat, and a motor for driving the gear to rotate. The gear is fixedly connected to the output shaft of the motor.

[0023] The lifting mechanism is provided with a lifting cylinder 11 that is fixedly connected to the lifting frame. The cylinder body of the lifting cylinder 11 is fixed on the sliding seat, and the piston rod of the lifting cylinder 11 is fixedly connected to the lifting frame 14.

[0024] The spray nozzle 13 is provided in four parts, which are symmetrically distributed along the circumference of the pipe at the front upper, front lower, rear upper, and rear lower positions of the pipe. The spray nozzle 13 is evenly and symmetrically distributed along the circumference of the pipe in a circumferential manner, so that the spraying range covers the circular pipe 360 ​​degrees.

[0025] Both the front cover 16 and the rear cover 17 are semi-circular contoured structures that mate with the pipe fittings, improving the compatibility between the cover and the pipe fittings and thus ensuring the covering effect.

[0026] The support member 8 is a support plate with a V-shaped groove on the top, and the bottom of the support plate is fixed on the horizontal adjustment frame.

[0027] A method for using the above-mentioned automatic masking and spraying equipment for pipe fittings, the method comprising the following steps: First, prenatal preparation Based on the current product support and masking requirements, adjust the number and position of the masking fixtures, and move the spraying fixtures above the initial spraying position; Second, pipe fittings feeding. Place the pipe fitting in the designated position, align the covering position with the covering fixture, and support it with the support component; Third, pipe fitting cover The first power mechanism is activated, and the front and rear cover parts move towards and close the pipe fitting, covering and supporting the portion of the pipe fitting that needs to be covered. Pipe Spraying The spraying fixture mounted on the two coordinate trusses is activated. The spraying fixture is lowered to the designated position by the lifting mechanism, so that the nozzles are symmetrically arranged around the pipe fitting in a circular manner. The nozzles are activated to start spraying. While spraying, the spraying fixture moves left and right under the guidance of the linear module. After spraying is completed, each fixture is reset, and the pipe fitting is unloaded and transferred to the subsequent process.

[0028] The automatic masking and spraying equipment and method for pipe fittings described in this invention achieves automatic masking and spraying of pipe fittings without manual operation. The equipment is conducive to automation transformation and integration into production lines, effectively improving spraying efficiency, protecting personnel health, and providing technical support for the construction of unmanned pipe processing production lines. This invention has strong compatibility and can be adapted to workpieces of various sizes by changing tooling and adjusting the number and position of mechanisms.

[0029] The covering fixture of this invention adopts a contour-following design, which takes into account both pipe support and covering, and has a simple and effective structure. The spraying fixture of this invention adopts a multi-set spray head surround design, and the spraying range covers the pipe 360 ​​degrees, without the need for the pipe to rotate during spraying. This invention has strong compatibility, and the various mechanism fixtures can be adjusted by changing the fixtures and the number and position of the mechanisms to accommodate workpieces of various sizes. This invention is conducive to the automation transformation of the spraying process and its integration into the production line, effectively improving spraying efficiency, protecting personnel health, and providing technical support for the construction of unmanned pipe processing production lines.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic masking and spraying device for pipe fittings, characterized in that, The equipment includes a base located below the pipe fitting and two coordinate trusses located above the pipe fitting. A spraying fixture for the pipe fitting is provided on the two coordinate trusses. The spraying fixture is slidably connected to a linear module on the two coordinate trusses via a lifting mechanism. A transverse guide rail is provided on the base, which is parallel to the two coordinate trusses. A covering fixture for the pipe fitting is slidably installed on the transverse guide rail. Several sets of covering fixtures are provided along the sliding direction. Each set of covering fixtures includes a transverse adjustment frame that slides with the transverse guide rail, a support member for supporting the pipe, and a front covering member and a rear covering member for supporting the pipe and covering the corresponding area. The front covering member and the rear covering member are respectively located on the front and rear sides of the pipe. The support member is located below the pipe. The transverse adjustment frame is provided with a longitudinal guide rail. The support member is fixed in the middle of the longitudinal guide rail. The bottom of the front covering member and the rear covering member are provided with a sliding seat that slides with the longitudinal guide rail. A first power mechanism for driving the front covering member and the rear covering member to move back and forth is installed on the transverse adjustment frame. The spraying fixture includes several spray nozzles distributed along the circumference of the pipe fitting, and a lifting frame for mounting the spray nozzles, which is mounted on a lifting mechanism.

2. The automatic masking and spraying equipment for pipe fittings according to claim 1, characterized in that, The linear module includes a linear guide rail fixed on a two-coordinate truss and a sliding seat that slides with the linear guide rail. The lifting mechanism is installed on the sliding seat, and the two-coordinate truss is provided with a first driving mechanism for driving the sliding seat to move left and right.

3. The automatic masking and spraying equipment for pipe fittings according to claim 2, characterized in that, The lifting mechanism is equipped with a lifting cylinder that is fixedly connected to the lifting frame. The cylinder body is fixed on the sliding seat, and the piston rod of the lifting cylinder is fixedly connected to the lifting frame.

4. The automatic masking and spraying equipment for pipe fittings according to claim 1, characterized in that, The nozzles are provided in four parts, which are symmetrically distributed along the circumference of the pipe at the front upper, front lower, rear upper, and rear lower positions.

5. The automatic masking and spraying equipment for pipe fittings according to claim 1, characterized in that, Both the front and rear cover components are semi-circular contoured structures that mate with the pipe fittings.

6. The automatic masking and spraying equipment for pipe fittings according to claim 1, characterized in that, The support is a support plate with a V-shaped groove on the top, and the bottom of the support plate is fixed to the middle of the longitudinal guide rail.

7. A method using the automatic pipe covering spraying equipment according to any one of claims 1-6, characterized in that, The method includes the following steps: First, prenatal preparation Based on the current product support and masking requirements, adjust the number and position of the masking fixtures, and move the spraying fixtures above the initial spraying position; Second, pipe fittings feeding. Place the pipe fitting in the designated position, align the covering position with the covering fixture, and support it with the support component; Third, pipe fitting cover The first power mechanism is activated, and the front and rear cover parts move towards and close the pipe fitting, covering and supporting the portion of the pipe fitting that needs to be covered. Pipe Spraying The spraying fixture mounted on the two coordinate trusses is activated. The spraying fixture is lowered to the designated position by the lifting mechanism, so that the nozzles are symmetrically arranged around the pipe fitting in a circular manner. The nozzles are activated to start spraying. While spraying, the spraying fixture moves left and right under the guidance of the linear module. After spraying is completed, each fixture is reset, and the pipe fitting is unloaded and transferred to the subsequent process.

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