Automatic positioning device for movable tray

Abstract

The utility model discloses an automatic positioning device for a movable tray, which relates to the field of positioning devices, and comprises a pushing part, a backstop mechanism, a mechanical position sensor and a laser sensor, the backstop mechanism comprises a backstop, a backstop support and a connecting rod mechanism, the backstop is rotatably connected to the backstop support, and the backstop is connected with the pushing part through the connecting rod mechanism; the mechanical position sensor is installed on one side of the connecting rod mechanism and used for judging the action position of the stopping mechanism. The laser sensor is used for identifying the position of the tray. The stop and release mechanism can meet the stop and release function requirements of the movable tray, and is accurate in positioning and stable in performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning device field, especially a kind of mobile pallet automatic positioning device. BACKGROUND

[0002] After axle is processed, surface paint spraying needs to be carried out, and the spraying process is completed in automatic spraying assembly line, and the spraying process is: preparation→primer spraying→drying→topcoat spraying→drying→finished preparation;The whole process is completed in automatic assembly line, and wheel is conveyed on material pallet through conveyor belt, and paint spraying is completed by spraying robot;It is required that pallet positioning needs to be accurate to meet the positioning requirements of robot spraying.

[0003] The prior art discloses a conveyor tray positioning device, which comprises a fixed frame, a chain conveyor is fixedly installed on the top of the fixed frame, a positioning device is fixedly connected to the center of the outer wall of the fixed frame, two identical jacking devices are fixedly connected to the two sides of the outer wall of the fixed frame away from the positioning device, and a sensor is fixedly connected to the outer wall of the chain conveyor;The position of the tray can be positioned by the cooperation of the jacking device, the positioning device, the taper pin and the pin hole;And the position of the tray is corrected by the sensor. Although the above-mentioned scheme can realize tray positioning, the structure is complex, and a single sensor is arranged, so that normal positioning cannot be realized when the sensor fails. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a mobile pallet automatic positioning device, which can meet the requirements of mobile pallet stopping and release function, and is accurate and stable in positioning.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme:

[0006] The utility model provides a kind of mobile pallet automatic positioning device, comprising:

[0007] Pushing part;

[0008] Stop mechanism, including stop, stop support and connecting rod mechanism, the stop is rotatably connected to the stop support, and the stop is connected with the pushing part by the connecting rod mechanism;

[0009] Mechanical position sensor is installed on one side of connecting rod mechanism, and the mechanical position sensor is used to judge the action position of stop mechanism;

[0010] Laser sensor, the laser sensor is used to identify tray position.

[0011] As a further implementation mode, the connecting rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the stop, and the other end is rotatably connected with the second connecting rod.

[0012] The second connecting rod is rotatably connected to the connecting rod support.

[0013] As a further implementation, the movable end of the pushing part is connected to the joint of the first connecting rod and the second connecting rod.

[0014] As a further implementation, the mechanical position sensor comprises a sensor body and a roller mechanism, which is in contact with the second connecting rod to make the sensor body acquire signals when the second connecting rod moves.

[0015] As a further implementation, the stopper comprises a blocking part and a mounting part which are connected as a whole.

[0016] As a further implementation, the mounting part has a first connecting position for connecting the stopper support and a second connecting position for connecting the connecting rod mechanism.

[0017] As a further implementation, the blocking part has a working surface for abutting against the moving tray.

[0018] As a further implementation, the laser sensor is arranged on one side of the stopper.

[0019] As a further implementation, the pushing part is a pneumatic cylinder which is connected to a high-pressure pipeline.

[0020] As a further implementation, the pushing part is a hydraulic cylinder which is connected to a hydraulic pipeline.

[0021] The beneficial effects of the present application are as follows:

[0022] (1) The present application cooperates the mechanical position sensor and the laser sensor to ensure the position information of the tray; when a single sensor fails, the failed sensor channel is shielded, the single sensor signal is judged, and the positioning device can still operate normally to ensure the operation stability.

[0023] (2) The present application cooperates the stopper, the connecting rod mechanism and the pushing part to complete the stopping and moving actions of the moving tray on the conveying belt; the overall structure is simple and convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings constituting a part of the specification of the present application are used to provide a further understanding of the present application, and the illustrative examples of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0025] Figure 1 is a schematic structure of the positioning device according to one or more embodiments of the present applicationFigure One ;

[0026] Figure 2 The utility model discloses according to one or more embodiment positioning device structure schematic Figure Two .

[0027] Wherein, 1, push part, 2, stop mechanism, 21, stop, 211, blocking part, 212, mounting part;22, first connecting rod, 23, second connecting rod, 24, connecting rod support;3, laser sensor, 4, mechanical position sensor, 5, support seat. DETAILED DESCRIPTION

[0028] Example one:

[0029] In order to make the utility model purposes, technical scheme and advantages more clearly, below will combine the utility model embodiment with further detailed description of the drawing.

[0030] The embodiment provides a kind of mobile tray automatic positioning device, meet the requirement of accurate positioning by the way of mechanical structure and sensor positioning combination, while simple structure, stable;As Figure 1 And Figure 2 Shown, the embodiment includes push part 1, stop mechanism 2, mechanical position sensor 4 and laser sensor 3, by mechanical position sensor 4 and laser sensor 3 cooperation, system confirms both signals, guarantees tray position information.

[0031] In the embodiment, push part 1 is the power source for linear drive effect, it can be cylinder, hydraulic cylinder etc., when push part 1 is cylinder, cylinder connects high pressure pipeline, realizes the push-pull action of cylinder piston rod by the gas filling and discharging of high pressure pipeline, realizes the high pressure gas pump of pipeline gas filling and discharging and is controlled by central control system;Wherein, central control system is prior art, not repeated here.

[0032] Push part 1 is hydraulic cylinder, and hydraulic cylinder connects hydraulic pipeline to provide hydraulic oil to hydraulic cylinder.

[0033] It can be understood that, in other embodiments, push part 1 can also be linear motor.

[0034] Stop mechanism 2 includes stop 21, stop support (not shown in the figure) and connecting rod mechanism, stop 21 is connected with push part 1 by connecting rod mechanism, to realize stop 21 state switching under the action of push part 1;In the embodiment, stop 21 has two states, one is that the working surface of stop 21 is in contact with mobile tray, i.e. blocking state;Two is that stop 21 rotates a certain angle, so that mobile tray can move, i.e. pass state.

[0035] In the embodiment, the connecting rod mechanism comprises a first connecting rod 22 and a second connecting rod 23, one end of the first connecting rod 22 is rotationally connected with the stop 21, the other end of the first connecting rod 22 is rotationally connected with one end of the second connecting rod 23, and the other end of the second connecting rod 23 is rotationally connected with the connecting rod support 24. The connecting rod support 24 is provided with a stop support on one side, and the connecting rod support 24, the stop support and the pushing part 1 are all installed on the upper side of the support base 5. The stop 21 is also rotationally connected with the stop support, and the state of the stop 21 is changed under the pushing action of the pushing part 1 through the above structure.

[0036] It should be noted that the rotationally connected in the embodiment is realized by the hinged mode.

[0037] When the stop 21 is in the blocking state, the first connecting rod 22 and the second connecting rod 23 are located in the same vertical plane, and at this time, the piston rod of the cylinder (or hydraulic cylinder) is in the initial state. The end of the piston rod is connected to the connecting position of the first connecting rod 22 and the second connecting rod 23. When the piston rod is elongated, the first connecting rod 22 and the second connecting rod 23 are pushed to move, and under the traction of the two, the stop 21 is rotated relative to the stop support, and the blocking part 211 is moved to a position below the moving tray, until completely separated from the moving tray, that is, reaches the blocking state.

[0038] The stop 21 comprises a blocking part 211 and a mounting part 212, which are connected as a whole. In the embodiment, the blocking part 211 is a rectangular plate, and one side surface thereof is a working surface, that is, a surface capable of contacting the moving tray. The blocking part 211 is connected with the mounting part 212 on the side opposite to the working surface, and the mounting part 212 plays a role of connecting with the stop support and the first connecting rod 22.

[0039] It can be understood that in other embodiments, in order to facilitate the connection of the stop support and the first connecting rod 22, the mounting part 212 is provided in a hook-shaped structure, which has a first connecting position and a second connecting position. The first connecting position is the position of one end of the mounting part 212, which is rotationally connected with the stop support. The second connecting position is the position of the corner of the mounting part 212, which is rotationally connected with the first connecting rod 22.

[0040] In order to avoid the problem that the setting of a single sensor affects the operation of the device, the mechanical position sensor 4 and the laser sensor 3 are provided in the embodiment. The laser sensor 3 is installed at a corresponding position of the side beam of the conveying belt and is located on one side of the stop 21. When the moving tray moves to the position where the laser sensor 3 is located, the laser sensor 3 can judge whether there is a tray and whether the tray is in place. A sensor matching signal sticker is placed on the fixed position of the side surface of the tray, which is convenient for the laser sensor 3 to identify.

[0041] The mechanical position sensor 4 is installed on one side of the second connecting rod 23, and comprises a sensor body and a roller mechanism, and in the initial state, the roller mechanism is in contact with the second connecting rod 23, when the pushing part 1 drives the second connecting rod 23 to move, the roller mechanism is driven to move, so that the sensor body records and feeds back the position information, and through setting the position of the roller mechanism when the blocking and releasing actions are completed, the boundary signal of the position sensor is set as the judgment signal of the action completion of the stop mechanism 2.

[0042] The double signals of the laser sensor 3 and the mechanical position sensor 4 are used in cooperation, so that the accurate positioning of the moving tray can be effectively ensured, and when a single sensor fails, the system can still normally operate through a single sensor signal, so that the operation stability of the positioning device is ensured.

[0043] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mobile pallet auto-positioning device, characterized by, The application relates to a pusher device for a tray conveying device, comprising: a pusher; a stop mechanism, comprising a stop, a stop support and a connecting rod mechanism, the stop being rotatably connected to the stop support, and the stop being connected to the pusher through the connecting rod mechanism; a mechanical position sensor, installed on one side of the connecting rod mechanism, the mechanical position sensor being used for judging the action position of the stop mechanism; a laser sensor, used for identifying the position of a tray.

2. A mobile pallet auto-positioning device according to claim 1, wherein, The connecting rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod being rotatably connected to the stop, and the other end being rotatably connected to the second connecting rod; the second connecting rod being rotatably connected to a connecting rod support.

3. A mobile pallet auto-positioning device according to claim 2, wherein, the movable end of the pusher being connected to the joint of the first connecting rod and the second connecting rod.

4. A mobile pallet auto-positioning device according to claim 2 or 3, wherein, the mechanical position sensor comprising a sensor body and a roller mechanism, the roller mechanism being in contact with the second connecting rod, so that the sensor body can obtain signals when the second connecting rod moves.

5. A mobile pallet auto-positioning device according to claim 1, wherein, the stop comprising an integrated blocking part and a mounting part.

6. A mobile pallet auto-positioning device according to claim 5, wherein, the mounting part having a first connecting position and a second connecting position, the first connecting position being used for connecting the stop support, and the second connecting position being used for connecting the connecting rod mechanism.

7. A mobile pallet auto-positioning device according to claim 5, wherein, the blocking part having a working surface used for abutting against a moving tray.

8. A mobile pallet auto-positioning device according to claim 1, wherein, the laser sensor being arranged on one side of the stop.

9. A mobile pallet auto-positioning device according to claim 1 or 5, wherein, the pusher being a pneumatic cylinder, and the pneumatic cylinder being connected to a high-pressure pipeline.

10. A mobile pallet auto-positioning device according to claim 1 or 5, wherein, the pusher being a hydraulic cylinder, and the hydraulic cylinder being connected to a hydraulic pipeline.

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