Carrier plate positioning structure

Abstract

The utility model provides a carrying disc positioning structure, a conveying path of a carrying disc is provided with a positioning pin fixed on a carrying disc jacking mechanism, a monitoring unit which is respectively in electric signal connection with a conveying belt system of the carrying disc and the carrying disc jacking mechanism is arranged beside a to-be-processed station of the carrying disc, and when the carrying disc is located at a jacking station, the positioning pin is fixed on the carrying disc jacking mechanism. And the carrying disc and the positioning section of the positioning pin form limiting fit in the disc surface direction of the carrying disc. When the carrying disc reaches the machining position, the monitoring unit sends an electric signal, the carrying disc jacking mechanism jacks the carrying disc, the carrying disc and the supporting face are fixed through the positioning pin, it is ensured that products on the carrying disc are located at the fixed position during machining, and then the machining precision and the machining efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic production line technical field, concretely relates to a carrier disc positioning structure. BACKGROUND

[0002] In the production line of precision machinery or electronic products, the product to be processed is placed in a special carrier disc in a fixed posture, and the carrier disc is transported to the downstream work station through a conveying track such as a conveying belt. In order to ensure the precision of product processing, assembly or measurement, the carrier disc needs to be positioned after reaching the work station, and the carrier disc is lifted upward by a lifting device to separate from the conveying track. If the positioning of the carrier disc is not accurate when it is transported to the processing work station, the product cannot be ensured to be in a fixed position when it is processed, and the processing precision cannot be ensured. SUMMARY

[0003] The utility model discloses a carrier disc positioning structure can be accurate, fast to the positioning of carrier disc.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme of a kind of carrier disc positioning structure, the conveying path of carrier disc is equipped with the positioning pin fixed on carrier disc lifting mechanism, the side of carrier disc processing work station is equipped with the monitoring unit of detecting carrier disc position, monitoring unit is electrically connected with the conveying belt system of carrier disc and carrier disc lifting mechanism respectively, positioning pin includes guide section and positioning section and guide section is located at the top of positioning section, carrier disc is in lifting work station, carrier disc and positioning section form limit cooperation in the direction of the disc surface of carrier disc.

[0005] The utility model mainly sets up monitoring unit to detect carrier disc position in the conveying path of carrier disc, positioning pin is provided on carrier disc lifting mechanism, the positioning section of positioning pin and carrier disc form limit cooperation in the direction of its disc surface. When carrier disc reaches processing position, monitoring unit sends electrical signal, carrier disc lifting mechanism lifts carrier disc and makes carrier disc and supporting surface fixed by positioning pin, and the guide section of positioning pin makes the limit cooperation between carrier disc and fixed section fast, accurate, ensure that the product on carrier disc is in fixed position when processing, and then improve processing precision and processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 It is isometric view of carrier disc positioning structure;

[0007] Figure 2 It is bottom view of carrier disc

[0008] Figure 3 It is schematic view of positioning pin;

[0009] Figure 4 It is schematic view of carrier disc pin hole. DETAILED DESCRIPTION

[0010] Referring to Figures 1-4 The positioning structure of the tray 10 is shown in the figure, the tray 10 is provided with a positioning pin 20 fixed on the tray lifting mechanism A on the conveying path of the tray 10, and a monitoring unit 30 is arranged on the side of the tray 10 to be machined to detect the position of the tray 10, the monitoring unit 30 is electrically connected with the conveying belt B system of the tray 10 and the tray lifting mechanism A, the positioning pin 20 includes a guide section 21 and a positioning section 22, and the guide section 21 is located at the top end of the positioning section 22, when the tray 10 is in the lifting position, the tray 10 and the positioning section 22 are limited in the direction of the disc surface of the tray 10.

[0011] In the above scheme, the tray 10 is placed on two parallel conveying belts B and transported to the downstream machining position along with the conveying belt B, the tray lifting mechanism A on the machining position is located below the tray 10, the monitoring unit 30 preferably uses a radar detector, which can quickly and accurately monitor the position of the tray 10, and has a high cost performance. After the monitoring unit 30 detects that the tray 10 reaches the machining position, the tray lifting mechanism A lifts the tray 10 to separate the bottom surface of the tray 10 from the conveying belt B, and starts the subsequent machining process. During the process of lifting the tray 10 by the tray lifting mechanism A, the guide section 21 at the top of the positioning pin 20 first contacts the pin hole 11 at the bottom of the tray 10, the guide surface corrects the position of the tray 10 to align the pin hole 11 with the axis of the positioning section 22, so as to complete the positioning action and limit the movement of the tray 10 in the supporting surface of the tray lifting mechanism A.

[0012] In order to improve the accuracy of the positioning of the tray 10, when the tray 10 is conveyed from the upstream to the machining position, the monitoring unit 30 detects the position of the tray 10 and outputs an electrical signal to the conveying belt B system, so that the conveying belt B pauses the conveying. Moreover, the monitoring unit 30 also outputs an electrical signal to the tray lifting mechanism A, and the tray lifting mechanism A performs the lifting action after receiving the signal. The two actions are performed in sequence, and the cooperation of the two actions makes the tray be lifted to the machining position continuously and accurately, and the pause action of the conveying belt B is also more conducive to the accurate insertion of the positioning pin 20 and the pin hole 11 at the bottom of the tray 10. On the contrary, if the tray 10 is lifted during the movement of the tray 10, it is difficult to cooperate the pin hole 11 with the positioning pin 20, which may cause the tray 10 to fall off, and the accuracy and timeliness of the monitoring of the monitoring unit 30 are also required to be higher.

[0013] As Figure 3 , 4As shown, the positioning section 22 is cylindrical and vertically arranged, and its diameter is consistent with the hole diameter of the pin hole 11 of the corresponding positioning pin 20 on the carrier plate 10. The hole section of the pin hole 11 near the bottom surface of the carrier plate 10 is a flared section 111, the flared mouth of the flared section 111 faces the bottom surface of the carrier plate 10, and the short diameter length of the upper end of the flared section 111 is consistent with the diameter of the positioning section 22. In the above scheme, the flared section 111 of the pin hole 11 can further correct the position between the positioning pin 20 and the carrier plate 10. When the carrier plate lifting mechanism A lifts the carrier plate 10, if the pin hole 11 is not coaxial with the positioning pin 20, the guide section 21 will first contact the flared section 111, and then slip into the pin hole 11, so that the peripheral surface of the positioning section 22 is tightly attached to the inner hole wall of the pin hole 11, and the positioning process is completed.

[0014] More specifically, the positioning pin 20 is arranged vertically on the carrier plate lifting mechanism A, and the connecting line of the rod cores of the two positioning pins 20 passes through the supporting surface area of the carrier plate lifting mechanism A. The guide section 21 is conical or circular truncated cone-shaped as a whole, the tip of the cone or the upper bottom surface of the circular truncated cone faces the direction of the surface of the carrier plate 10, the bottom surface of the cone is connected to the positioning section 22, and the side surface of the guide section 21 smoothly transitions to the side surface of the positioning section 22. In the above scheme, at least two positioning pins 20 are used to cooperate with the pin hole 11 to restrict the rotation of the carrier plate 10, and the conical surface of the guide section 21 constitutes a guide surface cooperating with the flared section 111.

[0015] Preferably, the positioning pin 20 is a stepped shaft, the positioning section 22 of the small-diameter section is located at the upper end of the supporting section 23 of the large-diameter section and arranged with the same core, the top surface 231 of the supporting section 23 constitutes the supporting surface of the carrier plate lifting mechanism A, and the positioning pin 20 is provided with three or four rod cores, and the connecting line of the rod cores encloses a triangle or a rectangle. In this scheme, the positioning pin 20 can be used as a support column to support the carrier plate 10, and at the same time meet the positioning and supporting functions, thereby simplifying the structure of the carrier plate lifting mechanism A.

Claims

1. A carrier disk positioning structure, characterized by: The positioning pin (20) fixed on the carrier disc lifting mechanism (A) is arranged on the conveying path of the carrier disc (10), and a monitoring unit (30) for detecting the position of the carrier disc (10) is arranged beside the carrier disc (10) to be machined, the monitoring unit (30) is electrically connected with the conveying belt (B) system of the carrier disc (10) and the carrier disc lifting mechanism (A) respectively, the positioning pin (20) comprises a guide section (21) and a positioning section (22), and the guide section (21) is located at the top end of the positioning section (22), when the carrier disc (10) is in the lifting position, the carrier disc (10) and the positioning section (22) are limitedly matched in the disc surface direction of the carrier disc (10).

2. The carrier positioning structure of claim 1, wherein: When the carrier disc (10) is conveyed from the upstream to the position to be machined, the monitoring unit (30) detects the position of the carrier disc (10) and outputs an electric signal to the conveying belt (B) system, so that the conveying belt (B) is temporarily stopped.

3. The carrier positioning structure of claim 2, wherein: When the carrier disc (10) reaches the position to be machined, the monitoring unit (30) outputs an electric signal to the carrier disc lifting mechanism (A), and the carrier disc lifting mechanism (A) performs a lifting action after receiving the signal.

4. The carrier positioning structure of claim 1, wherein: The positioning section (22) is in a cylindrical shape and vertically arranged, the diameter of the positioning section (22) is consistent with the hole diameter of the pin hole (11) corresponding to the positioning pin (20) on the carrier disc (10), the hole section of the pin hole (11) close to the bottom surface of the carrier disc (10) is an expanding diameter section (111) in a trumpet shape, the trumpet mouth of the expanding diameter section (111) faces the bottom surface of the carrier disc (10), and the short diameter length of the upper end of the expanding diameter section (111) is consistent with the diameter of the positioning section (22).

5. The carrier positioning structure of claim 1, wherein: The positioning pin (20) is at least provided with two and vertically arranged on the carrier disc lifting mechanism (A), the connecting line of the rod cores of the two positioning pins (20) passes through the supporting surface area of the carrier disc lifting mechanism (A), the guide section (21) is in a conical or circular table shape, the conical tip or the upper bottom surface of the circular table faces the disc surface direction of the carrier disc (10), the conical bottom surface is connected with the positioning section (22), and the side surface of the guide section (21) is smoothly connected with the side surface of the positioning section (22).

6. The carrier positioning structure of claim 1, wherein: The positioning pin (20) is in a stepped shaft shape, the positioning section (22) of the small diameter section is located at the upper end of the supporting section (23) of the large diameter section and arranged with the same core, the top surface (231) of the supporting section (23) forms the supporting surface of the carrier disc lifting mechanism (A), the positioning pin (20) is provided with three or four, and the connecting line of the rod cores encloses a triangle or a rectangle.

7. The carrier positioning structure of claim 1, wherein: The monitoring unit (30) is a radar detector.

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