Screw paint spraying device

Abstract

The utility model relates to a screw paint spraying device. The screw paint spraying device comprises a workbench, a rotary clamping part, a spray gun, a mounting column, a first driving mechanism and a second driving mechanism. The rotary clamping part comprises an upper screw clamping part and a lower screw clamping part, the end parts of the upper screw clamping part and the lower screw clamping part are respectively and rotatably provided with an upper screw top and a lower screw top which are used for clamping a screw, the center of the lower screw clamping part is provided with a limiting rod, and the upper screw clamping part is connected with the limiting rod in a sliding manner. The screw spraying device has the advantages that a plurality of upper screw top heads and lower screw top heads are arranged on the rotary clamping part, so that a next screw can be placed when the screw is sprayed, and the screw spraying efficiency is improved; the distance between the rotary clamping parts is adjustable, the angle of the spray gun is adjustable, and the device is suitable for screws with different lengths and thread angles.

Description

Technical Field

[0001] The utility model relates to the field of screw processing, in particular to a screw spraying device Background Art

[0002] The screw is a transmission element widely used in a variety of mechanical equipment and has a variety of uses. In order to extend the life of the screw, it is usually necessary to spray paint on the surface of the screw to improve the corrosion resistance of the screw. When the existing screw spraying device sprays the screw, it is necessary to wait for the previous screw to be sprayed before placing the next screw, and the spraying efficiency is low. Summary of the invention

[0003] The utility model mainly solves the above problems and provides a screw spraying device which can place the next screw when the screw is spraying paint so as to improve the efficiency of the screw spraying paint.

[0004] The technical solution adopted by the utility model to solve the technical problem is a screw spraying device, including a workbench and:

[0005] The rotating clamping part comprises an upper screw clamping part and a lower screw clamping part, the ends of the upper screw clamping part and the lower screw clamping part are respectively rotatably provided with an upper screw head and a lower screw head for clamping the screw, a limiting rod is provided in the center of the lower screw clamping part, and the upper screw clamping part is slidably connected with the limiting rod;

[0006] A spray gun is arranged on an angle adjustment mechanism, and the angle adjustment mechanism is used to adjust the angle of the spray gun;

[0007] The mounting column is arranged on the workbench, and a first lifting mechanism and a second lifting mechanism are arranged on the side of the mounting column. The first lifting mechanism drives the spray gun to move up and down, and the second lifting mechanism drives the upper screw clamping part to move up and down, and the upper screw clamping part is rotatably arranged on the second lifting mechanism;

[0008] A first driving mechanism is arranged on the workbench and is used to drive the lower screw clamping part to rotate;

[0009] The second driving mechanism is arranged on the workbench and is used for driving the lower screw rod head to rotate.

[0010] As a preferred scheme of the above scheme, the lower screw clamping part includes a first rotating plate and a plurality of first support arms, the first support arms are radially and evenly distributed on the first rotating plate, the first rotating plate is connected to the first driving mechanism, the lower screw head is rotatably arranged at the end of the first support arm, and the limit rod is arranged at the center of the first rotating plate.

[0011] As a preferred embodiment of the above scheme, the lower screw head is rotatably arranged at the end of the first support arm through the first bearing, a conical head is provided at the upper end of the lower screw head, a transmission column is provided at the lower end of the lower screw head, and a circle of first teeth is provided on the side of the transmission column.

[0012] As a preferred embodiment of the above scheme, the second driving mechanism includes a second motor and an output column, the output column is fixedly arranged on the output shaft of the second motor, and the side surface of the output column is provided with second teeth matching the first teeth.

[0013] As a preferred embodiment of the above scheme, the upper screw clamping part includes a second rotating plate and a plurality of second arms, the second arms are radially and evenly distributed on the second rotating plate, the second arms correspond one to one with the first arms, the second rotating plate is rotatably arranged on the second lifting mechanism through an axis, the upper screw head is rotatably arranged at the end of the second arm, and the second rotating plate and the axis are provided with limiting holes for the limiting rod to pass through.

[0014] As a preferred embodiment of the above scheme, the upper screw rod head includes a movable rod body, a conical head and a limit plate, the conical head is located at the lower end of the movable rod body, the limit plate is located at the upper end of the movable rod body, a second bearing is provided at the end of the second support arm, the movable rod body is rotatably arranged on the second support arm through the second bearing and the movable rod body is axially slidably connected to the inner ring of the second bearing, and the limit plate is rotatably connected to the pressurizing mechanism.

[0015] As a preferred embodiment of the above scheme, the inner wall of the inner ring of the second bearing is provided with a plurality of limiting protrusions, and the side surface of the movable rod body corresponding to the limiting protrusions is provided with a plurality of matching sliding grooves.

[0016] As a preferred embodiment of the above scheme, the pressurizing mechanism includes a cover body, which is arranged at the top of the upper screw corresponding to the second arm. A spring is provided on the top surface of the second cover body, and a connecting plate is provided under the spring. The connecting plate is rotatably connected to the limit plate through an end face bearing.

[0017] As a preferred embodiment of the above scheme, the angle adjustment mechanism includes a rotating cylinder and an adjustment motor, the rotating cylinder is fixedly arranged on the adjustment motor, the adjustment motor is fixedly arranged on the first lifting mechanism, and the spray gun is fixedly arranged on the side of the rotating body.

[0018] The utility model has the advantages that a plurality of upper screw heads and lower screw heads are arranged on the rotating clamping part, which can place the next screw when the screw is sprayed, thereby improving the screw spraying efficiency; the spacing of the rotating clamping part is adjustable, the angle of the spray gun is adjustable, and it is suitable for screws of different lengths and thread angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of the screw spraying device in the embodiment.

[0020] Figure 2 Schematic diagram of another structure of the screw spraying device in the embodiment.

[0021] Figure 3 for Figure 2 A partial enlarged view of area A.

[0022] Figure 4 Schematic diagram of the cross-sectional structure of the upper screw head in the embodiment.

[0023] Figure 5 is a schematic structural diagram of a second bearing in the embodiment;

[0024] 1-working table 2-installing column 3-first lifting mechanism 4-first lifting plate 5-adjusting motor 6-rotating column 7-second lifting mechanism 8-second lifting plate 9-upper screw clamping part 10-pressing mechanism 11-limiting rod 12-lower screw clamping part 13-lower screw top 14-screw to be painted 15-shaft body 16-conical head 17-transmission column 18-output column 19-cover body 20-spring 21-connecting plate 22-end bearing 23-limiting plate 24-movable rod body 25-second bearing 26-limiting protrusion. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further described below through embodiments and in conjunction with the accompanying drawings.

[0026] Example:

[0027] This embodiment is a screw spraying device, such as Figure 1 and Figure 2 As shown, it includes a workbench 1, a rotating clamping part, a spray gun, a mounting column 2, a first driving mechanism and a second driving mechanism. The rotating clamping part includes an upper screw clamping part 9 and a lower screw clamping part 10. The ends of the upper screw clamping part 9 and the lower screw clamping part 12 are respectively rotatably provided with an upper screw head and a lower screw head 13 for clamping the screw. A limit rod 11 is provided in the center of the lower screw clamping part 12. The upper screw clamping part 10 is slidably connected to the limit rod 11. The mounting column 2 is vertically arranged in the center of the rear end of the workbench 1. A first lifting mechanism is provided on the right side of the mounting column, and a second lifting mechanism is provided on the left and front side of the mounting column. The first lifting mechanism drives the spray gun to move up and down, and the second lifting mechanism drives the upper screw clamping part to move up and down. The upper screw clamping part is rotatably arranged on the second lifting mechanism.

[0028] The spray gun is arranged on an angle adjustment mechanism, and the angle adjustment mechanism is used to adjust the angle of the spray gun.

[0029] The first driving mechanism and the second driving mechanism are both arranged on the workbench. The first driving mechanism is used for driving the lower screw rod clamping part to rotate, and the second driving mechanism is used for driving the lower screw rod head to rotate.

[0030] The first lifting mechanism includes a first lifting motor, a first lifting screw, a first slide rail and a first lifting plate. The first lifting motor is fixedly arranged on the upper right end of the mounting column. The first lifting screw is vertically arranged. The upper end of the first lifting screw is connected to the first lifting motor. The first slide rail is fixedly arranged on the right side of the mounting column. The first lifting plate is arranged on the first lifting screw through a screw hole and the side of the first lifting plate is slidably connected to the first slide rail. When the first lifting motor is running, the first lifting motor drives the first screw to rotate, so that the first lifting plate is translated up and down. The angle adjustment mechanism is fixedly arranged on the first lifting plate. The angle adjustment mechanism includes a rotating cylinder 6 and an adjusting motor 5. The rotating cylinder 6 is fixedly arranged on the adjusting motor 5. The adjusting motor 5 is fixedly arranged on the first lifting plate, and the spray gun is fixedly arranged on the side of the rotating body. The adjusting motor 5 can drive the rotating cylinder 6 to rotate on a vertical plane, and then adjust the angle of the spray gun to match the thread angle of the screw 14 to be sprayed.

[0031] The second lifting mechanism includes a second lifting motor, a third lifting motor, a second lifting screw, a third lifting screw, a second slide rail, a second lifting plate 8 and a second slide rail. The second lifting motor is arranged under the workbench, the second lifting screw is located at the front side of the mounting column, the second lifting screw passes through the workbench and is connected with the second lifting motor, the second slide rail is fixedly arranged at the front side of the mounting column, the third motor is fixedly arranged at the upper end of the left side of the mounting column, the third lifting screw is connected with the third motor, the second lifting plate is driven by the second lifting screw and the second lifting screw to move up and down, and the second lifting plate is slidably arranged on the second slide rail, and the upper screw clamping part is rotatably arranged on the second lifting plate.

[0032] The lower screw clamping part 12 includes a first rotating plate and a plurality of first arms, the first arms are radially and evenly spaced on the first rotating plate, the first rotating plate is connected to the first driving mechanism, the lower screw head 13 is rotatably arranged at the end of the first arm, and the limit rod 11 is arranged at the center of the first rotating plate. The first driving mechanism is arranged under the workbench, the first driving mechanism includes a first motor and a first output shaft, the first output shaft passes through the workbench and is fixedly connected to the center of the lower end surface of the first rotating plate. The first motor is used to drive the lower screw clamping part to rotate, and when the lower screw clamping part rotates, the lower screw clamping part drives the upper screw clamping part to rotate through the limit rod, and the cross section of the limit rod is a polygon.

[0033] like Figure 3As shown, the lower screw head 13 is rotatably arranged at the end of the first arm through the first bearing, the upper end of the lower screw head 13 is provided with a conical head 16, the lower end of the lower screw head is provided with a transmission column 17, and the side of the transmission column is provided with a circle of first teeth. The second driving mechanism includes a second motor and an output column 18, the second motor is located under the workbench, the output column is fixedly arranged on the output shaft of the second motor and extends out of the workbench 1, and the side of the output column is provided with second teeth matching the first teeth. After the first driving mechanism drives the lower screw clamping part 12 to rotate a certain angle, the transmission column of a lower screw head on the lower screw clamping part can be against the output column 18, and the output column 18 drives the lower screw clamping part to rotate through the second teeth, thereby rotating the screw to be painted.

[0034] The upper screw clamping part 9 includes a second rotating plate and a plurality of second arms, the second arms are radially and evenly spaced on the second rotating plate, the second arms correspond to the first arms one by one, the second rotating plate is fixedly provided with a shaft 15, the shaft is rotatably connected with the second lifting plate through a bearing, and the second rotating plate and the shaft 15 are provided with a limiting hole for the limiting rod to pass through, and the limiting hole is a polygon with the same cross section as the limiting rod. When the second lifting plate is raised or lowered, the upper screw clamping part 9 can translate up and down along the limiting rod, and due to the existence of the bearing, the limiting rod can also drive the upper screw clamping part to rotate.

[0035] An upper screw head is rotatably arranged at the end of the second arm. Figure 4 and Figure 5 As shown, the upper screw head includes a movable rod body 24, a conical head 16 and a limit plate 23. The conical head 16 is located at the lower end of the movable rod body 24, and the limit plate 23 is located at the upper end of the movable rod body 24. The limit plate is rotatably connected to the pressure mechanism. A second bearing 25 is provided at the end of the second arm, and a plurality of limit protrusions 26 are provided on the inner wall of the inner ring of the second bearing. A plurality of matching slide grooves are provided on the side of the movable rod body 24 corresponding to the limit protrusions. The limit protrusions cooperate with the slide grooves so that the movable rod body can be rotatably arranged on the second arm through the second bearing and the movable rod body is axially slidably connected to the inner ring of the second bearing. That is, the movable rod body 24 can rotate around the axis while sliding axially.

[0036] The pressurizing mechanism includes a cover body 19, which is arranged at the position of the second support arm corresponding to the upper screw head. A spring 20 is arranged on the top surface of the second cover body, and a connecting plate 21 is arranged at the lower end of the spring. The connecting plate 21 is rotatably connected to the limit plate 23 through the end bearing 22. The arrangement of the pressurizing mechanism can provide a holding force to the screw to be painted and provide a movable space for the installation and removal of the screw to be painted. After adjusting the spacing between the upper screw clamping part and the lower screw clamping part, when placing the screw, the upper end of the screw to be painted is abutted against the upper screw head and lifted to compress the spring, and then the lower end of the screw to be painted is abutted against the lower screw head. At this time, after loosening the screw to be painted, the spring has a recovery tendency and clamps the screw to be painted between the upper screw clamping head and the lower screw clamping head.

[0037] Correspondingly, this embodiment also provides an automatic positioning processing method, which is used for the above-mentioned screw automatic positioning processing device, and includes the following steps:

[0038] S1: The distance between the upper screw clamping part and the lower screw clamping part and the angle and stroke of the spray gun are adjusted according to the length and thread angle of the screw to be painted. The angle of the spray gun changes according to its moving direction. When moving from top to bottom, the angle of the spray gun is tilted downward, and when moving from bottom to top, the angle of the spray gun is tilted upward.

[0039] S2: Use the upper screw head and the lower screw head to clamp the screw to be painted; in order to ensure that the upper screw head and the lower screw head can be on the axis of the screw to be painted, positioning holes can be opened at both ends of the screw to be painted in advance. The positioning holes can be opened in a cross shape or a straight shape, etc. The corresponding conical heads of the upper screw head and the lower screw head also need to be set in a cross shape or a straight shape to ensure that when the second driving mechanism drives the lower screw head to rotate, the lower screw head can drive the screw to be painted and the upper screw head to rotate.

[0040] S3: The first driving mechanism drives the rotating clamping part to rotate, so that the side surface of the transmission column of the lower screw head where the paint-spraying screw is located abuts against the side surface of the output column of the second driving mechanism;

[0041] S4: The second driving mechanism drives the transmission column to rotate through the output column, so that the screw to be painted rotates, and the first lifting mechanism drives the spray gun to move up and down at a uniform speed to spray paint. In this embodiment, the first arm and the second arm are each provided with three, that is, there are three screw clamping stations, which are respectively recorded as the first station, the second station and the third station. When the screw to be painted in the first station is sprayed with paint, the staff can place a new screw to be painted on the second station. When the screw to be painted on the first station is painted, the second station rotates to the original first station to start painting, and the original first station rotates to the third station to wait for the paint to dry. The original third station rotates to the second station, and the staff places the screw to be painted.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A screw spraying device, comprising a workbench, characterized in that: include: The rotating clamping part comprises an upper screw clamping part and a lower screw clamping part, the ends of the upper screw clamping part and the lower screw clamping part are respectively rotatably provided with an upper screw head and a lower screw head for clamping the screw, a limiting rod is provided in the center of the lower screw clamping part, and the upper screw clamping part is slidably connected with the limiting rod; A spray gun is arranged on an angle adjustment mechanism, and the angle adjustment mechanism is used to adjust the angle of the spray gun; The mounting column is arranged on the workbench, and a first lifting mechanism and a second lifting mechanism are arranged on the side of the mounting column. The first lifting mechanism drives the spray gun to move up and down, and the second lifting mechanism drives the upper screw clamping part to move up and down, and the upper screw clamping part is rotatably arranged on the second lifting mechanism; A first driving mechanism is arranged on the workbench and is used to drive the lower screw clamping part to rotate; The second driving mechanism is arranged on the workbench and is used for driving the lower screw rod head to rotate.

2. The screw spraying device according to claim 1 is characterized in that: The lower screw clamping part includes a first rotating plate and a plurality of first arms, wherein the first arms are radially and evenly distributed on the first rotating plate, the first rotating plate is connected to the first driving mechanism, the lower screw head is rotatably arranged at the end of the first arm, and the limit rod is arranged at the center of the first rotating plate.

3. The screw spraying device according to claim 2 is characterized in that: The lower screw rod top is rotatably arranged at the end of the first support arm through a first bearing, a conical head is arranged at the upper end of the lower screw rod top, a transmission column is arranged at the lower end of the lower screw rod top, and a circle of first teeth is arranged on the side of the transmission column.

4. The screw spraying device according to claim 3 is characterized in that: The second driving mechanism includes a second motor and an output column. The output column is fixedly arranged on the output shaft of the second motor. The side surface of the output column is provided with second teeth matching the first teeth.

5. The screw spraying device according to claim 2, characterized in that: The upper screw clamping part includes a second rotating plate and a plurality of second arms, the second arms are radially and evenly distributed on the second rotating plate, the second arms correspond to the first arms one by one, the second rotating plate is rotatably arranged on the second lifting mechanism through an axis, the upper screw head is rotatably arranged at the end of the second arm, and the second rotating plate and the axis are provided with limiting holes for the limiting rod to pass through.

6. The screw spraying device according to claim 5 is characterized in that: The upper screw rod head includes a movable rod body, a conical head and a limit plate, the conical head is located at the lower end of the movable rod body, the limit plate is located at the upper end of the movable rod body, a second bearing is provided at the end of the second support arm, the movable rod body is rotatably arranged on the second support arm through the second bearing, and the movable rod body is axially slidably connected to the inner ring of the second bearing, and the limit plate is rotatably connected to the pressurizing mechanism.

7. The screw spraying device according to claim 6 is characterized in that: The inner wall of the inner ring of the second bearing is provided with a plurality of limiting protrusions, and the side surface of the movable rod body corresponding to the limiting protrusions is provided with a plurality of matching sliding grooves.

8. The screw spraying device according to claim 6, characterized in that: The pressurizing mechanism comprises a cover body, which is arranged at the top of the second support arm corresponding to the upper screw rod. A spring is arranged on the top surface of the second cover body, and a connecting plate is arranged under the spring. The connecting plate is rotatably connected to the limit plate through an end bearing.

9. The screw spraying device according to claim 1, characterized in that: The angle adjustment mechanism comprises a rotating cylinder and an adjustment motor, the rotating cylinder is fixedly arranged on the adjustment motor, the adjustment motor is fixedly arranged on the first lifting mechanism, and the spray gun is fixedly arranged on the side of the rotating body.

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