Feeding device for screw detection

Abstract

The utility model belongs to the field of screw detection, and provides a feeding device for screw detection, which comprises a machine table, a cylindrical vibrating disc and a linear vibrator are respectively arranged on the machine table, a pair of feeding frames are arranged on the linear vibrator, the tail parts of the feeding frames are connected with an outlet of the cylindrical vibrating disc, and the tail parts of the feeding frames are connected with the outlet of the cylindrical vibrating disc. A lifting plate is arranged at the position, located at the front end of the linear vibrator, of the machine table, the lifting plate is located under the two feeding frames, and blocking and limiting assemblies are arranged on the machine table corresponding to the feeding frames and located at the tail of the lifting plate. When the device is used for feeding, the screws move to the feeding frame from an outlet of the cylindrical vibration disc, continue to move on the feeding frame, pass through the blocking and limiting assembly and move to the designated position of the lifting plate, the lifting plate moves upwards by a small distance and pushes the screws to move upwards, nuts of the screws are far away from the feeding frame by a small distance, and the screws are conveyed to the feeding frame. Therefore, the manipulator can conveniently grab the screws and transfer the screws to a detection station for detection.

Description

Technical Field

[0001] The utility model belongs to the field of screw detection, and in particular relates to a feeding device for screw detection. Background Art

[0002] Screws are threaded fasteners with heads of various shapes and structures. They are widely used in the construction industry due to their reliable connection and easy assembly and disassembly. As a common material in the construction industry, screws are generally sampled and tested based on demand after purchase to ensure that they meet the applicable standards.

[0003] In the prior art, the feeding device generally consists of a cylindrical vibrating plate and a linear vibrator. The cylindrical vibrating plate contains screws, which are first fed from the cylindrical vibrating plate's outlet onto the linear vibrator. The linear vibrator then uses vibration to feed the screws one by one in an orderly manner to the loading position. A robotic arm then clamps the screw caps and transfers the screws to the inspection station for testing. Due to the small size of the screws, direct gripping by the robotic arm can cause the screws to fall off, and can easily lead to direct contact between the robotic arm and the linear vibrator, affecting the feeding effect. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a feeding device for screw detection, aiming to solve the problem that the existing feeding device has a low feeding effect when feeding screws.

[0005] The utility model adopts the following technical solutions:

[0006] The feeding device includes a machine platform, which is respectively provided with a cylindrical vibration disk and a linear vibrator, and a pair of feeding racks are provided on the linear vibrator, and the tail of the feeding rack is connected to the outlet of the cylindrical vibration disk. A lifting plate is provided on the machine platform at the front end of the linear vibrator, and the lifting plate is located directly below the two feeding racks. A blocking and limiting assembly is provided on the machine platform corresponding to each feeding rack and at the tail of the lifting plate, and a vertical frame is provided on the machine platform, and a blocking cylinder is provided on the vertical frame, and a blocking plate is provided on the driving shaft of the blocking cylinder, and the blocking and limiting assembly includes left and right vertical blocks installed on the blocking plate, and the feeding rack is located between the left and right vertical blocks, wherein the left vertical block is provided with a limiting seat, and the right vertical block is provided with a blocking block facing the left vertical block.

[0007] Furthermore, the feed rack has a feed trough running through it along the length direction, and the feed trough is stepped. A shallow groove is provided on the top surface of the lifting plate facing the feed trough, and a pair of front and rear limit grooves are provided in the shallow groove, wherein the rear limit groove is located in the limit seat.

[0008] Furthermore, a column is provided on the machine platform, and a platform is provided on both sides of the column on which the feeding rack is located. Sensors are provided on the corresponding limit grooves on the same side of the platform, and a lifting cylinder is provided on the side wall of the column, and the driving shaft of the lifting cylinder is connected to the lifting plate.

[0009] Furthermore, an avoidance groove is provided at the bottom of the lifting plate.

[0010] The beneficial effect of the present invention is that when the screws are fed to the inspection station one by one and in an orderly manner by using the feeding device, the screws are first moved one by one from the outlet of the cylindrical vibrating disk to the feeding rack under the vibration of the cylindrical vibrating disk, and the screws continue to move along the length direction of the feeding rack under the vibration feeding of the linear vibrator. Then, the screws are moved to the specified position of the lifting plate under the action of the blocking and limiting assembly, and then the lifting plate moves upward a short distance and pushes the screws upward. During this process, the nut of the screw is a short distance away from the feeding rack, which makes it easier for the robot to grab the screw and transfer it to the inspection station for inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an overall diagram of a feeding device for screw detection provided by the utility model.

[0012] Figure 2 This utility model provides a schematic diagram of the lifting plate structure.

[0013] Figure 3 This is a schematic diagram of a blocking and limiting component provided by the present invention. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not intended to limit the utility model.

[0015] In order to illustrate the technical solution of the present invention, specific embodiments are provided below.

[0016] For the sake of convenience, only the parts related to the embodiments of the present invention are shown.

[0017] Combine Figure 1-3As shown, the feeding device includes a machine platform 1, which is respectively provided with a cylindrical vibration disk 2 and a linear vibrator 3, and a pair of feeding racks 4 are provided on the linear vibrator 3. The tail of the feeding rack 4 is connected to the outlet of the cylindrical vibration disk 2, and a lifting plate 5 is provided at the front end of the linear vibrator 3 on the machine platform 1. The lifting plate 5 is located directly below the two feeding racks 4, and a blocking and limiting assembly is provided on the machine platform 1 corresponding to each feeding rack 5 and at the tail of the lifting plate 5. The machine platform 1 is provided with a vertical frame 6, and a blocking cylinder 7 is provided on the vertical frame 6. The driving shaft of the blocking cylinder 7 is provided with a blocking plate 8, and the blocking and limiting assembly includes two left and right vertical blocks 9 installed on the blocking plate 8, and the feeding rack is located between the left and right vertical blocks, wherein the left vertical block is provided with a limiting seat 10, and the right vertical block is provided with a blocking block 11 facing the left vertical block.

[0018] Screws are threaded fasteners with heads of various shapes and structures. They are widely used in the construction industry due to their reliable connection and easy assembly and disassembly. As a common material in the construction industry, screws are generally sampled and tested based on demand after purchase to ensure that they meet the applicable standards.

[0019] In this device, a certain amount of screws to be inspected are placed in the cylindrical vibration disk. A transfer mechanism is also provided on the machine platform, and the transfer mechanism can be a robot. When the screws are sent to the inspection station one by one and in an orderly manner using the feeding device, the screws are first moved one by one from the outlet of the cylindrical vibration disk to the feeding rack under the vibration of the cylindrical vibration disk, and the screws continue to move along the length direction of the feeding rack under the vibration feeding of the linear vibrator. After that, the screws are moved to the designated position of the lifting plate under the action of the blocking and limiting assembly, and then the lifting plate moves upward a short distance and pushes the screw upward. During this process, the nut of the screw is a short distance away from the feeding rack, which makes it easier for the robot to grab the screw and transfer it to the inspection station for inspection. Since the cylindrical vibration disk and the linear vibrator are both existing technologies, they will not be described here.

[0020] In this structure, if Figure 2 The feed rack 4 is provided with a feed trough 12 running through it along the length direction, and the feed trough is stepped. A shallow groove 13 is provided on the top surface of the lifting plate 5 facing the feed trough, and a pair of front and rear limit grooves 14 are provided in the shallow groove, wherein the rear limit groove is located in the limit seat. When the screw moves from the outlet of the cylindrical vibration disk to the feed rack, the stud of the screw is located in the feed trough and the nut is located in the feed trough. When the screw is fed by the linear vibrator, it moves along the length direction of the feed trough. Since the feed trough is a stepped structural design, the feed trough can not only guide the screw, but also limit the screw during the feeding process, which can make the screw more stable during the feeding process and achieve better feeding effect.

[0021] In the above feeding process, when the screws pass through the blocking and limiting components one by one and in order and are fed to the designated position of the lifting plate. Figure 2-3 During the feeding process, if there is the first screw in the limit seat, and the outer side of the limit seat blocks the screw at the rear. When the blocking cylinder drives the blocking plate to move to the left, until the blocking block is located above the corresponding feeding rack and blocks the screw at the rear. The limit seat moves away from the feeding rack, and the first screw in the limit seat continues to move forward until it moves to the front end of the feeding trough. Then the blocking plate moves to the right, the limit seat moves to directly above the feeding rack, and the blocking block moves away from the feeding rack. During this process, the second screw is sent into the limit seat, and the limit seat blocks the screw. At this time, the front and rear limit slots on the lifting plate are located directly below the first screw and the second screw on the same side.

[0022] As a preferred structure, Figure 2-3 The machine 1 is provided with a column 15, and a carrier 16 is provided on both sides of the column 15 on the feeding rack 4. The carrier 16 is provided with a sensor 17 corresponding to the limit groove 14 on the same side. The side wall of the column 15 is provided with a lifting cylinder 18, and the driving shaft of the lifting cylinder 18 is connected to the lifting plate 5.

[0023] When screws are located above all four limit slots on the lifting plate, all sensors are activated, and the lifting cylinder drives the lifting plate upward a short distance until the lifting plate pushes the screw upward a short distance, and the screw cap moves away from the feeding slot. At this time, the screw is located in the limit slot. Finally, the robot can easily clamp the nut and transfer the screw to the inspection station.

[0024] In addition, if Figure 2 The bottom of the lifting plate 5 is provided with an avoidance groove 19. When the lifting cylinder drives the lifting plate to move up and down, the avoidance groove can play a role in avoiding the relative limit seat and the blocking block.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A feeding device for screw detection, characterized in that: The feeding device includes a machine platform, which is respectively provided with a cylindrical vibration disk and a linear vibrator, and a pair of feeding racks are provided on the linear vibrator, and the tail of the feeding rack is connected to the outlet of the cylindrical vibration disk. A lifting plate is provided on the machine platform at the front end of the linear vibrator, and the lifting plate is located directly below the two feeding racks. A blocking and limiting assembly is provided on the machine platform corresponding to each feeding rack and at the tail of the lifting plate, and a vertical frame is provided on the machine platform, and a blocking cylinder is provided on the vertical frame, and a blocking plate is provided on the driving shaft of the blocking cylinder, and the blocking and limiting assembly includes left and right vertical blocks installed on the blocking plate, and the feeding rack is located between the left and right vertical blocks, wherein the left vertical block is provided with a limiting seat, and the right vertical block is provided with a blocking block facing the left vertical block.

2. A feeding device for screw detection according to claim 1, characterized in that: The feed rack is provided with a feed trough running through it along its length, and the feed trough is stepped. A shallow groove is provided on the top surface of the lifting plate facing the feed trough, and a pair of front and rear limit grooves are provided in the shallow groove, wherein the rear limit groove is located in the limit seat.

3. A feeding device for screw detection according to claim 2, characterized in that: The machine platform is provided with a column, and a carrier is provided on both sides of the column at the feeding rack. The corresponding limiting grooves on the same side of the carrier are provided with sensors, and the side wall of the column is provided with a lifting cylinder, and the driving shaft of the lifting cylinder is connected to the lifting plate.

4. A feeding device for screw detection according to claim 3, characterized in that: The bottom of the lifting plate is provided with an avoidance groove.

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