Universal clamping and gluing device and method for screws

Abstract

The universal clamping and gluing device comprises a feeding and discharging mechanism, a clamping mechanism, a gluing mechanism and a mounting seat, and the clamping mechanism comprises a driving electric claw, a limiting pressing plate, a vertical sliding table bottom plate and a vertical sliding table air cylinder mounted on the vertical sliding table bottom plate; the driving electric claw is fixedly connected with the vertical sliding table bottom plate through an electric claw vertical plate, and a clamping claw with a rubber mat is arranged at the output end of the driving electric claw. The driving electric claw can adjust the distance between the clamping claws according to different sizes of screws, meanwhile, the heads of the screws are hung on the clamping claws through the elasticity of the rubber mat, compatibility of the screws of different sizes can be achieved, the limiting pressing plate is controlled through the vertical sliding table air cylinder to press the screws, deflection of the screws during gluing is avoided, and the service life of the screws is prolonged. Therefore, the glue coating quality of the screws is ensured, and the glue coating efficiency of the screws is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of screw gluing, and in particular relates to a universal screw clamping and gluing device, and a working method of the universal screw clamping and gluing device. Background Art

[0002] At present, in the production process of certain military products such as computer chassis, various types of screws are used for tightening. In order to prevent the screws from loosening and other quality problems after tightening, thread glue is applied on the screw threads. However, in the actual production and assembly process, due to the various specifications of screw types, sizes, lengths, etc., and the characteristics of military products in multiple varieties and small batches, military product manufacturers all use manual glue application with a brush.

[0003] The traditional gluing method not only fails to ensure the consistency of gluing, but also the efficiency cannot keep up with the actual speed required on site. Therefore, there is an urgent need for a universal screw clamping and gluing device to achieve automatic clamping and gluing of the above-mentioned types of screws, thereby improving the gluing efficiency and quality. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] A universal screw clamping and gluing device, comprising: a loading and unloading mechanism, a clamping mechanism, a gluing mechanism and a mounting seat, wherein the loading and unloading mechanism moves the screw back and forth between the loading and unloading position and the clamping mechanism, and the gluing mechanism performs gluing after the clamping mechanism clamps the screw to a limited position, the clamping mechanism comprises a driving electric claw, a limiting pressure plate, a vertical slide bottom plate and a vertical slide cylinder installed on the vertical slide bottom plate, the driving electric claw is fixedly connected to the vertical slide bottom plate through an electric claw vertical plate, the output end of the driving electric claw is provided with a clamping claw with a rubber pad, and the output end of the vertical slide cylinder is fixedly connected to the limiting pressure plate through a pressure plate bottom plate and a pressure plate fixing plate;

[0006] After the loading and unloading mechanism delivers multiple groups of screws to the clamping mechanism position, it drives the electric claw to control the clamping claw and rubber pad to clamp multiple screws at one time, so that the screw heads are hung on the clamping claw, and cooperates with the vertical slide cylinder to move the limit pressure plate to tighten the screws to avoid screw deflection during glue coating.

[0007] As a preferred embodiment of the above technical solution, the clamping mechanism also includes a horizontal module and a vertical module. The vertical module is installed on the horizontal module through a second base plate. A horizontal servo motor is fixed at the rear end of the horizontal module. The horizontal module drives the vertical module to reciprocate in the horizontal direction through the horizontal servo motor. A vertical servo motor is fixed at the rear end of the vertical module. The vertical module drives the vertical slide base plate through the vertical servo motor so that the slide cylinder and the driving electric claw reciprocate in the vertical direction.

[0008] As a preferred embodiment of the above technical solution, the clamping mechanism also includes two fixed brackets, the horizontal module is fixedly connected to the two fixed brackets through the first base plate, the fixed bracket is fixedly connected to a column, and the end of the column is fixedly connected to a base for mounting on a mounting seat.

[0009] As a preferred embodiment of the above technical solution, the clamping mechanism also includes two vertically arranged cable protection chains. The vertically arranged cable protection chains are used to protect the cables of the vertical slide cylinder and the driving electric claws, and the horizontally arranged cable protection chains are used to protect the cables of the vertical servo motor.

[0010] As a preferred embodiment of the above technical solution, the glue coating mechanism includes front and rear slide cylinders, a glue spray valve and a glue injection barrel. The glue spray valve is fixedly connected to the output ends of the front and rear slide cylinders through a glue valve fixing plate. A brush is provided at the end of the glue spray valve. An adapter connected to the glue injection barrel is provided on one side of the glue spray valve. The glue injection barrel is fixedly connected to the glue valve fixing plate through a glue barrel fixing plate and a glue barrel vertical plate. The bottom of the front and rear slide cylinders is installed on the mounting seat through the slide vertical plate.

[0011] As a preferred embodiment of the above technical solution, the glue coating mechanism further includes a glue box, which is located at the bottom of the brush and is used to hold the glue falling from the surface of the screw.

[0012] As a preferred embodiment of the above technical solution, the loading and unloading mechanism includes a loading and unloading module, a screw carrier and a glue coating carrier. The screw carrier is an incoming material carrier on which screws have been placed by other equipment, and the glue coating carrier is a material storage carrier after gluing. The screw carrier and the glue coating carrier are connected to the output end of the loading and unloading module through the carrier bottom plate. A loading and unloading servo motor is provided at the rear end of the loading and unloading module, and the loading and unloading module is installed on the mounting seat through a third bottom plate.

[0013] A working method of a universal screw clamping and gluing device comprises the following steps:

[0014] S1, feeding;

[0015] The screws to be coated with glue are placed in batches on the loading and unloading mechanism, and the loading and unloading mechanism is started to deliver the screws to the bottom of the clamping mechanism;

[0016] S2, clamping;

[0017] The electric claw is driven to control the movement of the clamping claw and the rubber pad, and the elasticity of the rubber pad is utilized to clamp multiple screws at one time and make the screw heads hang on the clamping claw;

[0018] S3, glue coating;

[0019] After starting the vertical slide cylinder to control the limit pressure plate to tighten the screw, the screw is moved to the gluing position and the gluing mechanism is used for gluing;

[0020] S4, send back;

[0021] The clamping mechanism sends the glue-coated screws to the top of the loading and unloading mechanism and disconnects the clamping and fixing of the screws. After completing the gluing of multiple batches of screws, the loading and unloading mechanism sends the screws back for retrieval to wait for the next gluing work.

[0022] The beneficial effects of the present invention are:

[0023] 1. The set driving electric claw can adjust the distance of the clamping claw according to the size of the screw. At the same time, the elasticity of the rubber pad is used to make the screw head hang on the clamping claw, which can be compatible with screws of different sizes. The vertical slide cylinder controls the limit pressure plate to press the screw to avoid screw deflection during gluing, thereby ensuring the quality of the glue applied to the screw and improving the gluing efficiency of the screw.

[0024] 2. The horizontal module and vertical module are set as basic units to construct a multi-axis motion platform, which can move the clamped screws horizontally and vertically, and cooperate with the gluing mechanism to complete the gluing of the screws during the horizontal movement, so that the gluing of the screws is more uniform, thereby improving the gluing quality of the screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0026] Figure 2 Shown is a front view of the clamping mechanism in the embodiment;

[0027] Figure 3 The figure shows the installation position of the driving electric claw in the embodiment;

[0028] Figure 4 What is shown is the front view of the gluing mechanism in the embodiment;

[0029] Figure 5 What is shown is the front view of the loading and unloading mechanism in the embodiment.

[0030] In the figure: 10, loading and unloading mechanism; 101, third bottom plate; 102, loading and unloading module; 103, carrier plate; 104, screw carrier; 105, glue carrier; 106, loading and unloading servo motor; 20, clamping mechanism; 201, base; 202, column; 203, fixed bracket; 204, first bottom plate; 205, horizontal module; 206, horizontal servo motor; 207, cable protection chain; 208, second bottom plate; 209, vertical module; 210, vertical servo motor; 211, vertical slide bottom Plate; 212, vertical slide cylinder; 213, pressure plate bottom plate; 214, pressure plate fixing plate; 215, limit pressure plate; 216, electric claw fixing vertical plate; 217, driving electric claw; 218, clamping claw; 219, rubber pad; 30, glue coating mechanism; 301, slide vertical plate; 302, front and rear slide cylinders; 303, glue valve fixing plate; 304, glue spraying valve; 305, brush; 306, adapter; 307, glue injection cylinder; 308, glue cylinder fixing plate; 309, glue cylinder vertical plate; 310, glue box; 40, mounting seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings of the specification.

[0032] Example

[0033] Figure 1-Figure 5 A universal screw clamping and gluing device includes: a loading and unloading mechanism 10, a clamping mechanism 20, a gluing mechanism 30 and a mounting seat 40. The loading and unloading mechanism 10 moves the screw back and forth between the loading and unloading position and the clamping mechanism 20. The gluing mechanism 30 performs gluing after the clamping mechanism 20 clamps and limits the screw. The clamping mechanism 20 includes a driving electric claw 217, a limiting pressure plate 215, a vertical slide base plate 211 and a vertical slide cylinder 212 installed on the vertical slide base plate 211. The driving electric claw 217 is fixedly connected to the vertical slide base plate 211 through an electric claw vertical plate 216. The output end of the driving electric claw 217 is provided with a clamping claw 218 with a rubber pad 219. The output end of the vertical slide cylinder 212 is fixedly connected to the limiting pressure plate 215 through a pressure plate base plate 213 and a pressure plate fixing plate 214.

[0034] After the loading and unloading mechanism 10 delivers multiple groups of screws to the position of the clamping mechanism 20, it drives the electric claw 217 to control the clamping claw 218 and the rubber pad 219 to clamp multiple screws at a time, so that the screw heads are hung on the clamping claws, and cooperates with the vertical slide cylinder 212 to move the limit pressure plate 215 to tighten the screws to avoid screw deflection during glue coating.

[0035] The driving electric claw 217 can adjust the distance of the clamping claw 218 according to different screw sizes. At the same time, the elasticity of the rubber pad 219 is used to make the screw head hang on the clamping claw 218, which can be compatible with screws of different sizes. The vertical slide cylinder 212 controls the limit pressure plate 215 to tighten the screw to avoid screw deflection during gluing, thereby ensuring the quality of the glue applied to the screw and improving the gluing efficiency of the screw.

[0036] A working method of a universal screw clamping and gluing device comprises the following steps:

[0037] S1, feeding;

[0038] The screws to be coated with glue are placed in batches on the loading and unloading mechanism 10, and the loading and unloading mechanism 10 is started to deliver the screws to the bottom of the clamping mechanism 20;

[0039] S2, clamping;

[0040] The electric claw 217 is driven to control the movement of the clamping claw 218 and the rubber pad 219, and the elasticity of the rubber pad 219 is utilized to clamp multiple screws at one time and make the screw heads hang on the clamping claw 218;

[0041] S3, glue coating;

[0042] After starting the vertical slide cylinder 212 to control the limit pressing plate 215 to press the screw, the screw is moved to the gluing position and the gluing mechanism 30 is used for gluing;

[0043] S4, send back;

[0044] The clamping mechanism 20 sends the glue-coated screws to the top of the loading and unloading mechanism 10 and disconnects the clamping and fixing of the screws. After completing the gluing of multiple batches of screws, the loading and unloading mechanism 10 sends the screws back for retrieval to wait for the next gluing work.

[0045] Figure 1-Figure 2 In the figure, the clamping mechanism 20 also includes a horizontal module 205 and a vertical module 209. The vertical module 209 is installed on the horizontal module 205 through a second base plate 208. A horizontal servo motor 206 is fixed to the rear end of the horizontal module 205. The horizontal module 205 drives the vertical module 209 to reciprocate in the horizontal direction through the horizontal servo motor 206. A vertical servo motor 210 is fixed to the rear end of the vertical module 209. The vertical module 209 drives the vertical slide base plate 211 through the vertical servo motor 210, so that the slide cylinder and the driving electric claw 217 reciprocate in the vertical direction.

[0046] The clamping mechanism 20 also includes two fixed brackets 203 , the horizontal module 205 is fixedly connected to the two fixed brackets 203 via a first bottom plate 204 , the fixed brackets 203 are fixedly connected to columns 202 , and the ends of the columns 202 are fixedly connected to bases 201 for mounting on the mounting seat 40 .

[0047] The clamping mechanism 20 also includes two vertically arranged cable protection chains 207. The vertically arranged cable protection chains 207 are used to protect the cables of the vertical slide cylinder 212 and the driving electric claw 217, and the horizontally arranged cable protection chains 207 are used to protect the cables of the vertical servo motor 210.

[0048] The horizontal module 205 and the vertical module 209 are set as basic units to construct a multi-axis motion platform, which can move the clamped screws horizontally and vertically, and cooperate with the gluing mechanism 30 to complete the gluing of the screws during the horizontal movement, so that the gluing of the screws is more uniform, thereby improving the gluing quality of the screws.

[0049] Figure 1 and Figure 4 In the figure, the glue coating mechanism 30 includes a front and rear sliding cylinder 302, a glue spraying valve 304 and a glue injection cylinder 307. The glue spraying valve 304 is fixedly connected to the output end of the front and rear sliding cylinder 302 through a glue valve fixing plate 303. A brush 305 is provided at the end of the glue spraying valve 304. An adapter 306 connected to the glue injection cylinder 307 is provided on one side of the glue spraying valve 304. The glue injection cylinder 307 is fixedly connected to the glue valve fixing plate 303 through a glue cylinder fixing plate 308 and a glue cylinder vertical plate 309. The bottom of the front and rear sliding cylinder 302 is installed on the mounting seat 40 through a sliding vertical plate 301.

[0050] The glue coating mechanism 30 further includes a glue box 310 , which is located at the bottom of the brush 305 , and is used to contain glue falling from the surface of the screw.

[0051] The set glue coating mechanism 30 coats the screws with glue in cooperation with the horizontal module 205, and ensures that each coating reaches consistent quality standards by accurately controlling the amount and position of glue coating, reducing errors caused by human factors, and can run continuously to significantly improve production speed.

[0052] Figure 1 and Figure 5In the figure, the loading and unloading mechanism 10 includes a loading and unloading module 102, a screw carrier 104 and a glue coating carrier 105. The screw carrier 104 is a material carrier on which screws have been placed by other equipment, and the glue coating carrier 105 is a material storage carrier after gluing. The screw carrier 104 and the glue coating carrier 105 are connected to the output end of the loading and unloading module 102 through the carrier bottom plate 103. A loading and unloading servo motor 106 is provided at the rear end of the loading and unloading module 102. The loading and unloading module 102 is installed on the mounting seat 40 through the third bottom plate 101.

[0053] The loading and unloading mechanism 10 is capable of transporting the screw carrier 104 and the glue carrier 105 without manual operation, which is more convenient to use.

[0054] Working principle: When there are screws that need to be glued, the external unloading device places the glue-coating carrier 105 and the screw carrier 104 with screws on the carrier bottom plate 103, and the loading and unloading mechanism 10 sends the carrier bottom plate 103 to the grabbing position, that is, the loading and unloading servo motor 106 provides power for the loading and unloading module 102 to drive the screw carrier 104 and the glue-coating carrier 105 to move through the carrier bottom plate 103, and then the vertical module 209 in the clamping mechanism 20 drives the electric claw 217 to move downward as a whole under the control of the vertical servo motor 210, and the driving electric claw 217 controls the clamping claw 218 and the rubber pad 219 to clamp multiple screws at a time, and the driving electric claw 217 can adjust different spacings according to different screw sizes, and use the rubber pad 219 The elasticity allows the screw head to hang on the clamping claw 218, which can be compatible with screws of different sizes, and then the vertical slide cylinder 212 controls the limit pressure plate 215 to tighten the screw to prevent the screw from deflecting during gluing. Subsequently, the horizontal module 205 in the clamping mechanism 20 moves the screw to the gluing position under the control of the horizontal servo motor 206, and the front and rear slide cylinders 302 in the gluing mechanism 30 are controlled to move the glue spray valve 304 and the brush 305 forward, while the clamping mechanism 20 continues to move to the left, and the brush 305 contacts the screw and completes the gluing of multiple screws at one time. After the gluing is completed, the clamping mechanism 20 places the screw in the glue carrier 105. After completion, the screw carrier 104 and the glue carrier 105 are removed and replaced by an external discharge device.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A universal screw clamping and gluing device, comprising: The invention relates to a loading and unloading mechanism (10), a clamping mechanism (20), a gluing mechanism (30) and a mounting seat (40), wherein the loading and unloading mechanism (10) moves the screw back and forth between the loading and unloading position and the clamping mechanism (20), and the gluing mechanism (30) performs a gluing process after the clamping mechanism (20) clamps the screw to a limited position, and is characterized in that the clamping mechanism (20) includes a driving electric claw (217), a limiting pressure plate (215), a vertical slide base plate (211) and a mounting seat (40). A vertical slide cylinder (212) on the vertical slide bottom plate (211), the driving electric claw (217) is fixedly connected to the vertical slide bottom plate (211) via an electric claw vertical plate (216), the output end of the driving electric claw (217) is provided with a clamping claw (218) with a rubber pad (219), and the output end of the vertical slide cylinder (212) is fixedly connected to a limit pressing plate (215) via a pressing plate bottom plate (213) and a pressing plate fixing plate (214); After the loading and unloading mechanism (10) delivers multiple groups of screws to the position of the clamping mechanism (20), the electric claw (217) is driven to control the clamping claw (218) and the rubber pad (219) to clamp multiple screws at one time, so that the screw heads are hung on the clamping claw, and the vertical slide cylinder (212) moves the limit pressure plate (215) to press the screws tightly to avoid screw deflection during glue coating.

2. A universal screw clamping and gluing device according to claim 1, characterized in that: The clamping mechanism (20) further comprises a horizontal module (205) and a vertical module (209), wherein the vertical module (209) is mounted on the horizontal module (205) via a second base plate (208), a horizontal servo motor (206) is fixed at the rear end of the horizontal module (205), and the horizontal module (205) drives the vertical module (209) to reciprocate in the horizontal direction via the horizontal servo motor (206), and a vertical servo motor (210) is fixed at the rear end of the vertical module (209), and the vertical module (209) drives the vertical slide base plate (211) via the vertical servo motor (210), so that the slide cylinder and the driving electric claw (217) reciprocate in the vertical direction.

3. A universal screw clamping and gluing device according to claim 2, characterized in that: The clamping mechanism (20) further comprises two fixed brackets (203), the horizontal module (205) being fixedly connected to the two fixed brackets (203) via a first bottom plate (204), the fixed brackets (203) being fixedly connected to a column (202), and the end of the column (202) being fixedly connected to a base (201) for mounting on a mounting seat (40).

4. A universal screw clamping and gluing device according to claim 3, characterized in that: The clamping mechanism (20) further comprises two vertically arranged cable protection chains (207), wherein the number of the vertically arranged cable protection chains (207) is used to protect the cables of the vertical slide cylinder (212) and the driving electric claw (217), and the horizontally arranged cable protection chains (207) are used to protect the cables of the vertical servo motor (210).

5. A universal screw clamping and gluing device according to claim 1, characterized in that: The glue coating mechanism (30) comprises a front and rear slide cylinder (302), a glue spraying valve (304) and a glue injection cylinder (307); the glue spraying valve (304) is fixedly connected to the output end of the front and rear slide cylinder (302) through a glue valve fixing plate (303); a brush (305) is arranged at the end of the glue spraying valve (304); a switching joint (306) connected to the glue injection cylinder (307) is arranged on one side of the glue spraying valve (304); the glue injection cylinder (307) is fixedly connected to the glue valve fixing plate (303) through a glue cylinder fixing plate (308) and a glue cylinder vertical plate (309); and the bottom of the front and rear slide cylinder (302) is mounted on the mounting seat (40) through a slide vertical plate (301).

6. A universal screw clamping and gluing device according to claim 5, characterized in that: The glue coating mechanism (30) further comprises a glue box (310), wherein the glue box (310) is located at the bottom of the brush (305), and the glue box (310) is used to contain glue dropped from the surface of the screw.

7. A universal screw clamping and gluing device according to claim 2, characterized in that: The loading and unloading mechanism (10) comprises a loading and unloading module (102), a screw carrier (104) and a glue coating carrier (105); the screw carrier (104) is a material carrier on which screws have been placed by other equipment; the glue coating carrier (105) is a material storage carrier after glue coating; the screw carrier (104) and the glue coating carrier (105) are connected to the output end of the loading and unloading module (102) through a carrier bottom plate (103); a loading and unloading servo motor (106) is provided at the rear end of the loading and unloading module (102); and the loading and unloading module (102) is mounted on a mounting seat (40) through a third bottom plate (101).

8. A working method of a universal screw clamping and gluing device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, feeding: placing the screws to be coated with glue in batches on the loading and unloading mechanism (10), and starting the loading and unloading mechanism (10) to feed the screws to the bottom of the clamping mechanism (20); S2, clamping: driving the electric claw (217) to control the movement of the clamping claw (218) and the rubber pad (219), and utilizing the elasticity of the rubber pad (219) to clamp a plurality of screws at one time and make the screw heads hang on the clamping claw (218); S3, gluing: after starting the vertical slide cylinder (212) to control the limit pressing plate (215) to press the screw, the screw is moved to the gluing position and the gluing mechanism (30) is used to perform gluing; S4, sending back: the clamping mechanism (20) sends the screws coated with glue to the top of the loading and unloading mechanism (10) and disconnects the clamping and fixing of the screws. After the glue coating of multiple batches of screws is completed, the loading and unloading mechanism (10) sends the screws back for retrieval to wait for the next glue coating work.

Images