Steel plate guide rail protective cover producing and machining device and using method thereof

Abstract

The invention relates to the field of protective cover machining, in particular to a steel plate guide rail protective cover producing and machining device which comprises a transmission device used for supporting, aluminum profile supporting columns are arranged at the four corners of the upper end face of the transmission device, and supporting clamping seats are fixedly arranged on the upper end faces of the four sets of aluminum profile supporting columns. A servo motor is fixedly arranged at the center of the side end face of the supporting clamping base. The stepping motor and the first two-way lead screw synchronously drive the two sets of fixing clamping plates to move centripetally, so that the fixing clamping plates can drive the two sets of limiting clamps to conduct all-directional limiting on the four corners of a protective cover workpiece; and meanwhile, a spraying clamping base can be inserted into a positioning inserting groove through a positioning inserting shaft to conduct secondary spraying limiting on the outer portion of the protective cover workpiece, the stability of the equipment for conducting spraying limiting on the protective cover workpiece is effectively improved, and then the efficiency of the equipment for conducting spraying on the protective cover workpiece is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of protective cover processing equipment, and specifically to a steel plate guide rail protective cover production and processing device and a use method thereof. Background Art

[0002] Protective cover production and processing equipment is widely used in machine tools, medical equipment, automation equipment and other fields, providing effective protection for various equipment. When processing the protective cover, it is necessary to spray various paint liquids on the protective cover accessories to improve the anti-corrosion and anti-rust functions of the protective cover, thereby increasing the service life of the subsequent protective cover.

[0003] For example, the publication number is CN209423906U, which discloses a spraying device for the production and processing of protective covers, including a main shaft and a motor. The utility model device sets a fixing device, and realizes the rotation of the threaded sleeve on the first threaded rod by rotating the first threaded rod, so that the pressure plate fixes the device on the protective cover, and the operation is simple and convenient; by setting an adjustment device, the internal gear is meshed with the first gear by rotating the rotating wheel, and the motor can drive the first threaded rod to rotate and fix the device, and the operation is simple; by setting a rotating device, when the main shaft drives the telescopic plate to rotate, the roller rolls on the outer shell of the protective cover, and the roller meshes with the third threaded rod through the second gear on the movable shaft to rotate, so that the third threaded rod rotates in the third threaded hole, and the length of the third threaded rod is constantly changed, so as to realize the spraying work on the outer surface of the protective cover, and the work efficiency is high. The utility model device has a simple structure and has the advantages of high work efficiency and simple operation.

[0004] Although the above-mentioned equipment can spray the protective cover workpiece, the stability of the protective cover limitation, as well as the uniformity and efficiency of spraying the outside of the protective cover are insufficient, thereby reducing the subsequent speed of spraying the protective cover. Therefore, a steel plate guide rail protective cover production and processing device and its use method are needed to solve the problems raised above. Summary of the invention

[0005] The object of the present invention is to provide a steel plate guide rail protective cover production and processing device and a use method thereof to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel plate guide rail protective cover production and processing device, comprising a transmission device for support, wherein the upper end surface of the transmission device is provided with aluminum profile pillars at four corners, and a support card seat is fixedly provided on the upper end surface of the four groups of aluminum profile pillars, a servo motor is fixedly provided at the center of the side end surface of the support card seat, and a guide screw is fixedly provided at the output end of the servo motor,

[0007] A limiting device, wherein the limiting device is threadedly slidably connected to the inner end surface of the supporting base through the guide screw, and the inner end surfaces of the two groups of limiting devices are fixedly clamped with a protective cover workpiece;

[0008] The spraying device is provided with two groups, and both groups of the spraying devices are threadedly slidably connected to the inner end surface of the transmission device.

[0009] Preferably, the limiting device includes a threaded guide seat, a fixed seat is fixedly arranged at the center of the lower end surface of the threaded guide seat, and a first bidirectional screw rod is rotatably clamped on the inner end surface of the fixed seat, a stepping motor is arranged at the side end surface of the fixed seat opposite to the first bidirectional screw rod, two groups of threaded slides are threadedly connected to the inner end surface of the fixed seat through the first bidirectional screw rod, and a fixed splint is arranged at the lower end surface of each group of the threaded slides, two groups of limiting clamps are arranged on the inner end surface of the fixed splint, and a positioning groove is opened at the center of the inner end surface of the limiting clamp, and a positioning slot is opened at the side end surface of the limiting clamp near the corner.

[0010] Preferably, the spraying device includes a spraying cartridge for support and spraying, a feed conduit is fixedly arranged at the center of the rear end face of the spraying cartridge, a ball slide is fixedly arranged at the center of the lower end face of the spraying cartridge, and positioning shafts are arranged at the four corners of the front end face of the spraying cartridge.

[0011] Preferably, the transmission device includes a supporting base, an inner end surface of the supporting base is symmetrically rotatably clamped with a second bidirectional screw transmission shaft, and a third bevel gear is arranged near the middle of the outer end surface of the second bidirectional screw transmission shaft, a transmission shaft is rotatably clamped at the center of the lower end surface of the supporting base, and second bevel gears are arranged on both side ends of the transmission shaft, a fourth bevel gear is arranged near the middle of the outer end surface of the transmission shaft, a reduction motor is arranged at the bottom of the supporting base, and a first bevel gear is fixedly arranged at the output end of the reduction motor.

[0012] Preferably, the fixed base is adapted to the guide screw through the threaded guide base and then threadedly slidably connected to the inner end surface of the support base, the second bevel gear is meshedly connected to the third bevel gear, and the first bevel gear is meshedly connected to the fourth bevel gear. When guiding the protective cover workpiece, the servo motor can drive the overall displacement of the limit device through the threaded connection between the guide screw and the threaded guide base, which is convenient for subsequent loading of the protective cover workpiece.

[0013] Preferably, the four groups of limit clamps are fixedly connected with the four corners of the protective cover workpiece through the alignment slots, and the spraying base is matched with the positioning slots through the positioning shaft and fixedly connected with the limit clamps. When the protective cover workpiece is guided and limited, the stepper motor can synchronously drive the two groups of threaded slides to perform centripetal displacement through the first bidirectional screw, so that the limit clamps can limit the four corners of the protective cover workpiece through the alignment slots, thereby improving the stability of limiting the protective cover workpiece and facilitating subsequent spraying. The limiting connection between the positioning shaft and the positioning slot can further improve the stability of the spraying base in limiting the protective cover workpiece.

[0014] Preferably, the ball slide is threadably connected to the inner end surface of the support base through the second bidirectional screw transmission shaft, and the spraying seat is sealed and fixedly clamped with the limiting clamp. The two groups of relative spraying seats can be centripetally displaced under the threaded guidance of the second bidirectional screw transmission shaft, so that the two groups of spraying seats can seal and limit the protective cover workpiece, which can effectively improve the efficiency and uniformity of subsequent spraying of the protective cover workpiece.

[0015] A method for using a steel plate guide rail protective cover production and processing device comprises the following steps:

[0016] S1: Pre-assembly, the external material guide module can be positioned at the front of the transmission device, and then the external paint delivery pipeline is connected with the feed duct to complete the pre-assembly operation;

[0017] S2: For limiting the loading of the protective cover workpiece, the stepper motor can synchronously drive the two sets of fixed clamps to perform centrifugal displacement through the threaded connection between the first bidirectional screw and the two sets of threaded slides, and then the external material guide module can position the protective cover workpiece between the two sets of fixed clamps, and the stepper motor can reverse, so that the first bidirectional screw can drive the two sets of upper and lower limit clamps through the threaded slide to limit the four corners of the protective cover workpiece;

[0018] S3: Loading the protective cover workpiece, the servo motor can drive the guide screw to rotate, and the guide screw can be connected with the threaded guide seat through the thread, thereby driving the protective cover workpiece limited inside the two sets of fixed clamps to move to the spraying device;

[0019] S4: For spraying the protective cover workpiece, the reduction motor can synchronously drive the third bevel gear and the second bidirectional screw drive shaft to rotate through the first bevel gear, the fourth bevel gear, the drive shaft and the second bevel gear. The second bidirectional screw drive shaft can be threadedly connected with the two sets of ball slides, thereby synchronously driving the two sets of spraying seats to move centripetally, so that the two sets of spraying seats can seal and limit the protective cover workpiece. Then, the external paint delivery pipeline can guide the high-pressure paint into the interior of the spraying seat, and the two sets of spraying seats can perform all-round atomization spraying on the protective cover workpiece.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention can synchronously drive the two groups of fixed splints to move centripetally through the stepper motor and the first bidirectional screw, so that the fixed splints can drive the two groups of limiting clamps to limit the four corners of the protective cover workpiece in all directions. At the same time, the spraying seat can be inserted into the positioning slot through the positioning shaft to perform secondary spraying limiting on the outside of the protective cover workpiece, which effectively improves the stability of the equipment when spraying limiting the protective cover workpiece, thereby improving the efficiency of the equipment in spraying the protective cover workpiece.

[0022] 2. When the protective cover workpiece is sprayed, the two sets of relatively arranged spraying seats of the present invention can fully seal and limit the outside of the protective cover workpiece, which can not only improve the efficiency and uniformity of spraying the outside of the protective cover workpiece, but also prevent the atomized spray paint from splashing, thereby improving the efficiency of the equipment in spraying the outside of the protective cover workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 A disassembled diagram of the main body of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the main body of the present invention;

[0026] Figure 3 It is a disassembled diagram of the limiting device of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the limiting device of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the spraying device of the present invention;

[0029] Figure 6 It is a disassembled diagram of the transmission device of the present invention;

[0030] Figure 7 It is a schematic structural diagram of the transmission device of the present invention.

[0031] In the figure: 1-protective cover workpiece, 2-limiting device, 3-spraying device, 4-transmission device, 5-aluminum profile pillar, 6-supporting card seat, 7-servo motor, 8-guide screw, 21-stepping motor, 22-fixed splint, 23-alignment slot, 24-positioning slot, 25-limiting fixture, 26-threaded slide, 27-first bidirectional screw, 28-fixed card seat, 29-threaded guide seat, 31-spraying card seat, 32-feeding duct, 33-ball slide, 34-positioning plug shaft, 41-first bevel gear, 42-reduction motor, 43-second bevel gear, 44-third bevel gear, 45-support base, 46-second bidirectional screw, 47-fourth bevel gear, 48-transmission card shaft. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] The present invention is further described below in conjunction with the accompanying drawings.

[0035] Example 1

[0036] See also Figure 1-7The present invention provides an embodiment: a steel plate guide rail protective cover production and processing device, including a transmission device 4 for support, the upper end surface of the transmission device 4 is provided with aluminum profile pillars 5 at four corners, and the upper end surface of the four groups of aluminum profile pillars 5 is fixedly provided with a support base 6, the center of the side end surface of the support base 6 is fixedly provided with a servo motor 7, and the output end of the servo motor 7 is fixedly provided with a guide screw 8,

[0037] The limiting device 2 is connected to the inner end surface of the support base 6 by a threaded sliding connection through a guide screw 8, and the inner end surfaces of the two sets of limiting devices 2 are fixedly clamped with the protective cover workpiece 1;

[0038] The spraying device 3 is provided with two groups, and both groups of the spraying devices 3 are threadedly slidably connected to the inner end surface of the transmission device 4.

[0039] The limiting device 2 includes a threaded guide seat 29, a fixed seat 28 is fixedly arranged at the center of the lower end surface of the threaded guide seat 29, and a first bidirectional screw rod 27 is rotatably clamped on the inner end surface of the fixed seat 28, a stepping motor 21 is arranged at the side end surface of the fixed seat 28 opposite to the first bidirectional screw rod 27, two groups of threaded slides 26 are threadedly connected to the inner end surface of the fixed seat 28 through the first bidirectional screw rod 27, and a fixed splint 22 is arranged at the lower end surface of each group of threaded slides 26, two groups of limiting clamps 25 are arranged on the inner end surface of the fixed splint 22, and a positioning groove 23 is opened at the center of the inner end surface of the limiting clamp 25, and a positioning slot 24 is opened on the side end surface of the limiting clamp 25 near the corner.

[0040] The spraying device 3 includes a spraying cartridge 31 for support and spraying, a feed conduit 32 is fixedly arranged at the center of the rear end face of the spraying cartridge 31, and a ball slide 33 is fixedly arranged at the center of the lower end face of the spraying cartridge 31, and positioning plug shafts 34 are arranged at the four corners of the front end face of the spraying cartridge 31.

[0041] The transmission device 4 includes a support base 45, the inner end surface of the support base 45 is symmetrically rotatably clamped with a second bidirectional screw transmission shaft 46, and a third bevel gear 44 is arranged near the middle of the outer end surface of the second bidirectional screw transmission shaft 46, a transmission shaft 48 is rotatably clamped at the center of the lower end surface of the support base 45, and second bevel gears 43 are arranged on both side ends of the transmission shaft 48, and a fourth bevel gear 47 is arranged near the middle of the outer end surface of the transmission shaft 48, a reduction motor 42 is arranged at the bottom of the support base 45, and a first bevel gear 41 is fixedly arranged at the output end of the reduction motor 42.

[0042] The fixed base 28 is adapted to the guide screw 8 through the threaded guide seat 29 and then threadedly slidably connected to the inner end surface of the support base 6, the second bevel gear 43 is meshedly connected with the third bevel gear 44, and the first bevel gear 41 is meshedly connected with the fourth bevel gear 47. When guiding the protective cover workpiece 1, the servo motor 7 can drive the overall displacement of the limit device 2 through the threaded connection between the guide screw 8 and the threaded guide seat 29, which is convenient for the subsequent loading of the protective cover workpiece 1.

[0043] The four groups of limit clamps 25 are fixedly connected with the four corners of the protective cover workpiece 1 through the alignment slots 23, and the spraying holder 31 is adapted to the positioning slot 24 through the positioning plug shaft 34 and then fixedly connected with the limit clamps 25. When the protective cover workpiece 1 is guided and limited, the stepper motor 21 can synchronously drive the two groups of threaded slides 26 to move centripetally through the first bidirectional screw rod 27, so that the limit clamps 25 can limit the four corners of the protective cover workpiece 1 through the alignment slots 23, improve the stability of limiting the protective cover workpiece 1, and facilitate subsequent spraying. The limiting plug-in of the positioning plug shaft 34 and the positioning slot 24 can further improve the stability of the spraying holder 31 in limiting the protective cover workpiece 1.

[0044] The ball slide 33 is threadedly connected to the inner end surface of the support base 45 through the second bidirectional screw transmission shaft 46, and the spraying seat 31 is sealed and fixedly clamped with the limiting clamp 25. The two groups of relative spraying seats 31 can be centripetally displaced under the threaded guidance of the second bidirectional screw transmission shaft 46, so that the two groups of spraying seats 31 can seal and limit the protective cover workpiece 1, which can effectively improve the efficiency and uniformity of subsequent spraying of the protective cover workpiece 1.

[0045] A method for using a steel plate guide rail protective cover production and processing device comprises the following steps:

[0046] S1: Pre-assembly, the external material guide module can be positioned at the front of the transmission device 4, and then the external paint delivery pipeline is connected to the feed conduit 32 to complete the pre-assembly operation;

[0047] S2: For limiting the feeding of the protective cover workpiece 1, the stepper motor 21 can synchronously drive the two sets of fixed clamps 22 to perform centrifugal displacement through the threaded connection between the first bidirectional screw 27 and the two sets of threaded slides 26, and then the external material guide module can position the protective cover workpiece 1 between the two sets of fixed clamps 22, and the stepper motor 21 can be reversed, so that the first bidirectional screw 27 can drive the two sets of upper and lower limit clamps 25 to limit the four corners of the protective cover workpiece 1 through the threaded slide 26;

[0048] S3: Loading the protective cover workpiece 1, the servo motor 7 can drive the guide screw 8 to rotate, and the guide screw 8 can be threadedly connected with the threaded guide seat 29, thereby driving the protective cover workpiece 1 limited inside the two sets of fixed clamps 22 to move to the spraying device 3;

[0049] S4: spraying the protective cover workpiece 1, the reduction motor 42 can synchronously drive the third bevel gear 44 and the second bidirectional screw transmission shaft 46 to rotate through the first bevel gear 41, the fourth bevel gear 47, the transmission shaft 48 and the second bevel gear 43, and the second bidirectional screw transmission shaft 46 can be connected with the two groups of ball slides 33 by threads, thereby synchronously driving the two groups of spraying seats 31 to move centripetally, so that the two groups of spraying seats 31 can seal and limit the protective cover workpiece 1, and then the external paint delivery pipeline can introduce high-pressure paint into the inside of the spraying seat 31, and the two groups of spraying seats 31 can perform all-round atomization spraying on the protective cover workpiece 1.

[0050] Working principle: Before use, the staff can position the external material guide module to the front of the transmission device 4, so as to provide the limiting device 2 with enough protective cover workpiece 1 for clamping and limiting. At the same time, the external paint delivery pipeline can be connected with the feed conduit 32 to facilitate the subsequent provision of high-pressure paint. When clamping and limiting the protective cover workpiece 1, the staff can start the stepper motor 21. At this time, the stepper motor 21 can drive the first bidirectional screw rod 27 to rotate. At the same time, the first bidirectional screw rod 27 can be connected with the two sets of threaded slides 26 through threads, thereby synchronously driving the two sets of fixed clamps 22 to perform centrifugal positioning. The protective cover workpiece 1 is moved, and then the external material guide module can position the protective cover workpiece 1 between the two sets of fixed clamps 22. At this time, the stepper motor 21 can reverse, and the first bidirectional screw rod 27 can drive the two sets of upper and lower limit clamps 25 to limit the four corners of the protective cover workpiece 1 through the threaded slide 26, thereby completing the locking and limiting of the protective cover workpiece 1, and then loading. When loading, the staff can start the servo motor 7. At this time, the servo motor 7 can drive the guide screw rod 8 to rotate, and the guide screw rod 8 can be connected with the threaded guide seat 29 through the thread, thereby driving the two sets of fixed clamps 22 to limit the protective cover workpiece 1 inside. The two sets of spraying cassettes 31 are in a separated state in the initial state. When the threaded guide seat 29 drives the two sets of protective cover workpieces 1 to move to the position opposite to the two sets of spraying cassettes 31, the reduction motor 42 is started at this time. The reduction motor 42 can drive the fourth bevel gear 47 and the transmission card shaft 48 to rotate through the first bevel gear 41. The transmission card shaft 48 can synchronously drive the third bevel gear 44 and the second bidirectional screw transmission card shaft 46 to rotate through the two sets of second bevel gears 43. The second bidirectional screw transmission card shaft 46 can be connected with the two sets of ball slides 33 through threads, thereby synchronously belt The two groups of spraying cassettes 31 are moved centripetally, so that the two groups of spraying cassettes 31 can limit the side of the protective cover workpiece 1 in all directions, and at the same time, the spraying cassettes 31 can be inserted into the positioning slot 24 through the positioning plug shaft 34 to complete the locking. After the two groups of spraying cassettes 31 have limited the protective cover workpiece 1, the external paint delivery pipeline can introduce the high-pressure paint into the spraying cassettes 31, and the two groups of spraying cassettes 31 can perform all-round atomization spraying on the protective cover workpiece 1. After the spraying is completed, the spraying device 3 is reset, and at the same time, the servo motor 7 can drive the limit device 2 and the protective cover workpiece 1 to reset through the guide screw 8.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production and processing device for a steel plate guide rail protective cover, comprising a transmission device (4) for supporting, wherein the four corners of the upper end surface of the transmission device (4) are each provided with an aluminum profile support (5), and a support holder (6) is fixedly provided on the upper end surface of the four groups of the aluminum profile support (5), a servo motor (7) is fixedly provided at the center of the side end surface of the support holder (6), and a guide screw rod (8) is fixedly provided at the output end of the servo motor (7), characterized in that: A limiting device (2), wherein the limiting device (2) is threadedly slidably connected to the inner end surface of the supporting base (6) through the guide screw (8), and the inner end surfaces of the two groups of limiting devices (2) are fixedly clamped with a protective cover workpiece (1); A spraying device (3), wherein two groups of the spraying devices (3) are provided, and both groups of the spraying devices (3) are threadedly slidably connected to the inner end surface of the transmission device (4).

2. The steel plate guide rail protective cover production and processing device according to claim 1 is characterized in that: The limiting device (2) comprises a threaded guide seat (29), a fixed clamping seat (28) is fixedly arranged at the center of the lower end surface of the threaded guide seat (29), and a first bidirectional screw rod (27) is rotatably clamped at the inner end surface of the fixed clamping seat (28), a stepping motor (21) is arranged at the side end surface of the fixed clamping seat (28) directly opposite to the first bidirectional screw rod (27), the inner end surface of the fixed clamping seat (28) is threadedly connected with two groups of threaded slides (26) through the first bidirectional screw rod (27), and a fixed clamping plate (22) is arranged at the lower end surface of each group of the threaded slides (26), two groups of limiting clamps (25) are arranged at the inner end surface of the fixed clamping plate (22), and a positioning groove (23) is opened at the center of the inner end surface of the limiting clamp (25), and a positioning slot (24) is opened at the side end surface of the limiting clamp (25) near the corner.

3. A steel plate guide rail protective cover production and processing device according to claim 2, characterized in that: The spraying device (3) comprises a spraying cartridge (31) for supporting and spraying, a feed conduit (32) is fixedly arranged at the center of the rear end face of the spraying cartridge (31), a ball bearing slide (33) is fixedly arranged at the center of the lower end face of the spraying cartridge (31), and positioning plug shafts (34) are arranged at the four corners of the front end face of the spraying cartridge (31).

4. The steel plate guide rail protective cover production and processing device according to claim 3 is characterized in that: The transmission device (4) comprises a support base (45), the inner end surface of the support base (45) is symmetrically rotatably clamped with a second bidirectional screw transmission clamping shaft (46), and a third bevel gear (44) is arranged near the middle of the outer end surface of the second bidirectional screw transmission clamping shaft (46), a transmission clamping shaft (48) is rotatably clamped at the center of the lower end surface of the support base (45), and second bevel gears (43) are arranged at both side ends of the transmission clamping shaft (48), and a fourth bevel gear (47) is arranged near the middle of the outer end surface of the transmission clamping shaft (48), a reduction motor (42) is arranged at the bottom of the support base (45), and a first bevel gear (41) is fixedly arranged at the output end of the reduction motor (42).

5. The steel plate guide rail protective cover production and processing device according to claim 4 is characterized in that: The fixed base (28) is adapted to the guide screw (8) through the threaded guide base (29) and is then threadedly slidably connected to the inner end surface of the support base (6); the second bevel gear (43) is meshedly connected to the third bevel gear (44); and the first bevel gear (41) is meshedly connected to the fourth bevel gear (47).

6. The steel plate guide rail protective cover production and processing device according to claim 4 is characterized in that: The four groups of limiting clamps (25) are fixedly connected to the four corners of the protective cover workpiece (1) through the alignment slots (23), and the spraying clamp (31) is matched with the positioning slot (24) through the positioning plug shaft (34) and is fixedly connected to the limiting clamps (25).

7. The steel plate guide rail protective cover production and processing device according to claim 4 is characterized in that: The ball sliding seat (33) is threadedly slidably connected to the inner end surface of the support base (45) through the second bidirectional screw transmission clamping shaft (46), and the spray clamping seat (31) is sealed and fixedly clamped with the limiting clamp (25).

8. The method for using the steel plate guide rail protective cover production and processing device according to claim 7 is characterized in that: The following steps are involved: S1: pre-assembly, the external material guide module can be positioned at the front of the transmission device (4), and then the external paint delivery pipeline is connected to the feed conduit (32) to complete the pre-assembly operation; S2: For limiting the feeding of the protective cover workpiece (1), the stepper motor (21) can synchronously drive the two sets of fixed clamps (22) to perform centrifugal displacement through the threaded connection between the first bidirectional screw rod (27) and the two sets of threaded slide seats (26), and then the external material guide module can position the protective cover workpiece (1) between the two sets of fixed clamps (22), and the stepper motor (21) can be reversed, so that the first bidirectional screw rod (27) can drive the two sets of upper and lower limit clamps (25) through the threaded slide seat (26) to perform limit operations on the four corners of the protective cover workpiece (1); S3: The protective cover workpiece (1) is loaded, and the servo motor (7) can drive the guide screw (8) to rotate. The guide screw (8) can be threadedly connected with the threaded guide seat (29), thereby driving the protective cover workpiece (1) limited inside the two sets of fixed clamps (22) to move to the spraying device (3); S4: The protective cover workpiece (1) is sprayed. The reduction motor (42) can synchronously drive the third bevel gear (44) and the second bidirectional screw drive shaft (46) to rotate through the first bevel gear (41), the fourth bevel gear (47), the drive shaft (48) and the second bevel gear (43). The second bidirectional screw drive shaft (46) can be threadedly connected with the two groups of ball slides (33) to synchronously drive the two groups of spraying seats (31) to move centripetally, so that the two groups of spraying seats (31) can seal and limit the protective cover workpiece (1). Then, the external paint delivery pipeline can guide the high-pressure paint into the interior of the spraying seat (31), and the two groups of spraying seats (31) can perform all-round atomization spraying on the protective cover workpiece (1).

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