Automatic jacking and positioning device

Abstract

The utility model belongs to the technical field of feeding, and particularly relates to an automatic jacking and positioning device. An automatic jacking and positioning device comprises a bottom plate, a supporting rod and a supporting plate, two lifting air cylinders are arranged below the supporting plate, and guide rods of the lifting air cylinders extend to the position above the supporting plate; a plurality of limiting rods which define a raw material bin and a clinker bin are arranged on the two supporting plates respectively, and proximity switches are arranged on the supporting plates; two air ports of each lifting air cylinder are respectively connected with a pilot one-way valve, the two pilot one-way valves on each lifting air cylinder are respectively connected with two air ports of an electromagnetic valve, and an air source is connected with an air inlet of the electromagnetic valve. The controller controls starting and stopping of the electromagnetic valve through the proximity switch so as to drive the lifting air cylinder, and products on the uppermost layer in the raw material bin and the clinker bin are located at the same height. Through cooperation of the air cylinder, the pilot one-way valve and the electromagnetic valve, the automatic feeding and discharging device is simple in structure, safe, reliable, stable, accurate and capable of achieving automatic feeding and discharging of products.

Description

Technical Field

[0001] The utility model belongs to the technical field of loading, and particularly relates to an automatic lifting and positioning device. Background Art

[0002] As Figure 1 shown, it is the middle plate of a mobile phone (i.e., product 1 described below). For the processing of such plate-shaped products 1 and other large-volume structure products, manual loading and unloading are generally used, that is, workers place a single product 1 on a jig, and after processing, the workers take it off manually. The processing characteristics of such products generally include a long processing cycle, and it is necessary for operators to run continuously and long distances to patrol the machines to achieve loading and unloading of multiple machines, resulting in problems such as high manual labor intensity, low automation level, and low production efficiency. In order to achieve automatic loading and unloading, similar to the processing of such products, a stacked loading device is mostly used, which cooperates with a spindle gripper to achieve full-automatic production and processing of the machine. In the prior art, the stacked loading devices used mostly adopt a screw drive mechanism driven by a servo motor to realize the lifting of the stacked products 1, but such structures have problems such as complex structures.

[0003] Therefore, based on the problems of high manual labor intensity, low automation level, low production efficiency, and complex structure of the existing stacked loading device, it is urgent to design an automatic lifting and positioning device with a simple structure, convenient operation, and high automation level. Summary of the Utility Model

[0004] To solve the technical problems existing in the prior art, the present application provides an automatic lifting and positioning device that is combined with a cylinder, a pilot check valve, and a solenoid valve, and has a simple structure, is safe and reliable, stable and accurate, and can realize automatic loading and unloading of products.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] An automatic lifting and positioning device includes a bottom plate, a support rod fixedly connected to the bottom plate, and a support plate horizontally and fixedly connected to the upper end of the support rod. Two lifting cylinders are arranged below the support plate, and the guide rods of the lifting cylinders can slidably penetrate through the support plate and extend above the support plate; a plurality of limit rods that enclose to form a raw material bin and a finished product bin are respectively fixedly connected to the two support plates, and a proximity switch is arranged on the support plate; pilot check valves are respectively connected to the two air ports of each lifting cylinder, and the two pilot check valves on each lifting cylinder are respectively connected to the two air vents of a solenoid valve. The solenoid valve is a three-position five-way mid-exhaust solenoid valve, and an air source is connected to the air inlet of the solenoid valve; the controller controls the start and stop of the solenoid valve through the proximity switch to drive the lifting cylinders, so that the uppermost products in the raw material bin and the finished product bin are at the same height.

[0007] Preferably, a fixing plate is fixedly connected to the support plate on one side of the raw material bin, a blocking cylinder is vertically fixedly connected to the fixing plate, a baffle is rotatably connected to the guide rod of the blocking cylinder, both ends of the hinged plate are respectively hinged to the upper part of the fixing plate and the baffle, and the proximity switch is fixedly embedded in the lower end surface of the baffle.

[0008] Preferably, the lower end surface of the mounting plate is fixedly connected to the upper end surface of the base plate, the upper end surface of the mounting plate is fixedly connected to the lower end surface of the support plate, and the lifting cylinder is fixedly connected to the mounting plate.

[0009] Preferably, a limit plate is horizontally fixedly connected to the guide rod of the lifting cylinder above the support plate.

[0010] Preferably, a support plate through hole is opened on the support plate, and a threaded hole connecting the support plate through hole is horizontally opened on the vertical end surface of the support plate on one side of the support plate through hole, the limit rod is inserted into the support plate through hole, and the fastening bolt is threadedly connected in the threaded hole and presses against the limit rod to fix the limit rod in the support plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model forms a raw material bin and a cooked material bin by arranging a support plate and a limit rod, which are used to stack unprocessed products and processed products respectively; the on and off of the airflow is controlled by adopting a three-position five-way center-drain double-coil solenoid valve, and the air discharge mode of the lifting cylinder is controlled by a pilot one-way valve, and the above-mentioned combined effect realizes that the lifting cylinder moves when the air is ventilated and stops when the air is cut off; in addition, the start and stop of the solenoid valve are controlled by a proximity switch, so that the lifting cylinder can make the uppermost products in the raw material bin and the cooked material bin stay at the same height every time.

[0013] The utility model is easy to operate. It only needs to manually load the product into the raw material bin, and control the height of the product in the raw material bin through the controller, solenoid valve, pilot check valve and lifting cylinder. Then, the tool handle gripper on the existing machine tool can be used to pick and place the product, and the processed product can be placed in the cooked material bin, thereby realizing full automation of machine processing and unmanned operation. It not only improves the efficiency of the machine, but also reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a product that adopts the utility model for feeding.

[0015] Figure 2 It is a schematic diagram of the structure of the utility model when in use.

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 4 Schematic diagram of the connection structure between the support plate and the limiting rod of the present utility model.

[0018] Figure 5 Schematic diagram of the connection structure of the blocking cylinder, fixed plate, baffle plate, hinge plate and proximity switch of the present utility model.

[0019] Figure 6 Schematic diagram of the connection of the lifting cylinder, pilot check valve and solenoid valve of the present utility model.

[0020] In the figure: 1. Product, 2. Base plate, 21. Support rod, 22. Mounting plate, 3. Support plate, 31. Raw material bin, 32. Clinker bin, 33. Through hole of support plate, 34. Threaded hole, 35. Fixed plate, 4. Lifting cylinder, 41. Limiting plate, 5. Limiting rod, 6. Proximity switch, 7. Blocking cylinder, 71. Baffle plate, 72. Hinge plate, 8. Pilot check valve, 9. Solenoid valve, 91. Upper coil, 92. Lower coil. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. Embodiment

[0023] Refer to Figure 2 , 3 , 4, and 5. An automatic lifting and positioning device includes a base plate 2, a plurality of support rods 21 vertically and fixedly connected by bolts on the base plate 2, and a support plate 3 horizontally and fixedly connected by bolts at the upper ends of the support rods 21. Two lifting cylinders 4 are arranged on the left and right sides below the support plate 3, and the guide rods of the lifting cylinders 4 can slide through the through slots of the support plate and extend above the support plate 3.

[0024] Specifically, the lower end face of the mounting plate 22 is fixedly connected to the upper end face of the bottom plate 2 by bolts, the upper end face of the mounting plate 22 is fixedly connected to the lower end face of the support plate 3 by bolts, and the lifting cylinder 4 is vertically and fixedly connected to one side of the mounting plate 22 by bolts.

[0025] A plurality of limiting rods 5 that enclose to form a raw material bin 31 and a clinker bin 32 are respectively and fixedly connected to the two support plates 3, and a proximity switch 6 is arranged on the support plate 3.

[0026] Specifically, the raw material bin 31 and the clinker bin 32 are respectively used for stacking and placing the unprocessed products 1 and the processed products 1. In this embodiment, the raw material bin 31 and the clinker bin 32 are respectively formed by enclosing six limiting rods 5. Further, in order to facilitate the installation of the limiting rod 6 and adjust its height relative to the upper end face of the support plate 3, a support plate through hole 33 is opened on the support plate 3, and a threaded hole 34 communicating with the support plate through hole 33 is horizontally opened on the vertical end face of the support plate 3 on one side of the support plate through hole 33. The limiting rod 5 is inserted into the support plate through hole 33, and a fastening bolt (not shown in the figure) is threadedly connected in the threaded hole 34 and can abut against the limiting rod 5 to fixedly embed the limiting rod 5 in the support plate 3. When the fastening bolt is loosened or screwed out, the limiting rod 5 can slide up and down in the support plate through hole 33.

[0027] In order to make the lifting of the stacked products 1 by the lifting cylinder 4 more stable, a limiting plate 41 is horizontally and fixedly connected to the guide rod of the lifting cylinder 4 above the support plate 3 by bolts.

[0028] A fixing plate 35 is vertically and fixedly connected to the support plate 3 on one side of the raw material bin 31 by bolts. A blocking cylinder 7 is vertically and fixedly connected to the end face of the fixing plate 35 away from the raw material bin 31 by bolts. A baffle 71 is rotatably connected to the guide rod of the blocking cylinder 7 through a pin shaft structure. Two ends of the hinge plate 72 are respectively hinged to the upper part of the fixing plate 35 and one end of the baffle 71 close to the blocking cylinder 7 through pin shaft structures. The proximity switch 6 is fixedly embedded in the lower end face of the baffle 71 by bolts. When the guide rod of the blocking cylinder 7 retracts, it can drive the baffle 71 to be in a vertical state to prevent the existing machine tool's tool handle gripper from grasping the products 1 in the raw material bin 31. When the guide rod of the blocking cylinder 7 extends, it can drive the baffle 71 to be in a horizontal state, so that the proximity switch 6 is above the raw material bin 31 to sense and identify the height of the uppermost product 1 in the raw material bin 31. The proximity switch 6 is electrically connected to the controller.

[0029] Pilot check valves 8 are respectively connected to the two air ports of each lifting cylinder 4. The pilot check valve 8 has the structure of an existing pilot-operated check valve speed control valve. The two pilot check valves 8 on each lifting cylinder 4 are respectively connected to the two air ports of the solenoid valve 9. The solenoid valve 9 is a three-position five-way mid-exhaust solenoid valve, and the air source (not shown in the figure) is connected to the air inlet of the solenoid valve 9; the controller (not shown in the figure) controls the start and stop of the solenoid valve 9 through the proximity switch 6 to drive the length of the guide rod of the lifting cylinder 4 to extend or retract, so that the uppermost products 1 in the raw material silo 31 and the clinker silo 32 are at the same height.

[0030] See Figure 6 As shown, the specific working principle is the prior art, and its specific working process is as follows: The P port of the solenoid valve 9 is the gas inlet, which is connected to the existing air source, and the A port and B port of the solenoid valve 9 are the control air ports.

[0031] When neither the upper coil 91 nor the lower coil 92 of the solenoid valve 9 is energized, both the A port and B port of the solenoid valve 9 are in communication with the atmosphere. At this time, A1, A2, B1, and B2 are all at zero pressure. According to the working principle of the pilot valve, both the upper and lower air holes of the lifting cylinder 4 are in a closed state at this time, and the guide rod of the lifting cylinder 4 is in a static state.

[0032] When the upper coil 91 of the solenoid valve 9 is energized and the lower coil 92 is de-energized, at this time the A port of the solenoid valve 9 is ventilated, the B port of the solenoid valve 9 is vented, there is pressure at the A1 and A2 ports, the gas at the A1 port enters the upper end of the lifting cylinder 4 under the action of pressure, and the air pressure at the A2 port makes the B1 port communicate with the lower air port of the lifting cylinder 4. The gas at the lower end of the lifting cylinder 4 is slowly discharged under the control of the speed control valve of the pilot check valve 8. At this time, the guide rod of the lifting cylinder 4 slowly descends. When the upper coil 91 of the solenoid valve 9 is de-energized, the guide rod of the lifting cylinder 4 immediately stops.

[0033] When the lower coil 92 of the solenoid valve 9 is energized and the upper coil 91 is de-energized, at this time the A port of the solenoid valve 9 is vented, the B port of the solenoid valve 9 is ventilated, there is pressure at the B1 and B2 ports, the gas at the B1 port enters the lower end of the lifting cylinder 4 under the action of pressure, and the air pressure at the B2 port makes the A1 port communicate with the upper air port of the lifting cylinder 4. The gas at the upper end of the lifting cylinder 4 is slowly discharged under the control of the speed control valve of the pilot check valve 8. At this time, the lifting cylinder 4 slowly rises. When the product 1 approaches the proximity switch 6 on the baffle 71, the lower coil 92 of the solenoid valve 9 is de-energized, and the lifting cylinder 4 immediately stops.

[0034] The working process of the present utility model is as follows:

[0035] See Figure 2As shown, the unprocessed products 1 are manually stacked in the raw material bin 31. The controller controls the rod of the blocking cylinder 7 to extend, driving the baffle 71 and the proximity switch 6 to be in a horizontal state. The controller controls the corresponding air source, solenoid valve 9, pilot check valve 8, and the rod of the lifting cylinder 4 to extend to lift the products 1 in the raw material bin 31 so that the uppermost product 1 is lifted to a specified height. At this time, the proximity switch 6 is triggered, and the controller controls the rod of the lifting cylinder 4 to stop lifting.

[0036] After that, the controller controls the rod of the blocking cylinder 7 to retract, making the baffle 71 in a vertical state. The tool holder gripper on the existing machine tool grabs the uppermost product 1 in the raw material bin 31 for processing. After that, the controller controls the rod of the blocking cylinder 7 to extend, driving the baffle 71 and the proximity switch 6 to be in a horizontal state. The controller controls the corresponding air source, solenoid valve 9, pilot check valve 8, and the rod of the lifting cylinder 4 to extend to lift the products 1 in the raw material bin 31 so that the uppermost product 1 is lifted to the same specified height. At this time, the proximity switch 6 is triggered, and the controller controls the rod of the lifting cylinder 4 to stop lifting. Then this process repeats until all the products 1 in the raw material bin 31 are grabbed.

[0037] In the initial state, the rod of the lifting cylinder 4 corresponding to the clinker bin 32 is in an extended state. During the process of the tool holder gripper on the existing machine tool placing the processed products 1 one by one into the clinker bin 32, the controller controls the corresponding air source, solenoid valve 9, pilot check valve 8, and the rod of the lifting cylinder 4 to retract so that the uppermost product 1 in the clinker bin 32 is at the same specified height. It should be noted that in this embodiment, the lifting cylinders 4 corresponding to the raw material bin 31 and the clinker bin 32 can act synchronously. That is, when the lifting cylinder 4 corresponding to the raw material bin 31 lifts the products 1 in the raw material bin 31, the lifting cylinder 4 corresponding to the clinker bin 32 can drive the products 1 in the clinker bin 32 to descend, and the distances of lifting and descending are the same.

[0038] It should be noted that in this embodiment, the controller can select an existing PLC controller. The connection method and control principle between the controller and the air source, solenoid valve 9, blocking cylinder 7, lifting cylinder 4, etc. are prior art. This is set to improve the automation level and will not be elaborated here. As long as the above process can be achieved.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic lifting and positioning device, comprising a base plate, a support rod fixedly connected to the base plate, and a support plate horizontally fixedly connected to the upper end of the support rod, characterized in that: Two lifting cylinders are arranged below the support plate, and the guide rods of the lifting cylinders can be slidably arranged in the support plate and extend to the top of the support plate; a plurality of limit rods enclosing a raw material bin and a cooked material bin are respectively fixedly connected to the two support plates, and a proximity switch is arranged on the support plate; A pilot check valve is connected to the two air ports of each lifting cylinder respectively, and the two pilot check valves on each lifting cylinder are connected to the two air ports of the solenoid valve respectively. The solenoid valve is a three-position five-way center-drain solenoid valve, and the air source is connected to the air inlet of the solenoid valve; The controller controls the start and stop of the electromagnetic valve through the proximity switch to drive the lifting cylinder so that the uppermost products in the raw material bin and the cooked material bin are at the same height.

2. The automatic lifting and positioning device according to claim 1, characterized in that: A fixed plate is fixedly connected to the support plate on one side of the raw material bin, a blocking cylinder is vertically fixedly connected to the fixed plate, a baffle is rotatably connected to the guide rod of the blocking cylinder, two ends of the hinged plate are respectively hinged to the upper part of the fixed plate and the baffle, and the proximity switch is fixedly embedded in the lower end surface of the baffle.

3. The automatic lifting and positioning device according to claim 1, characterized in that: The lower end surface of the mounting plate is fixedly connected to the upper end surface of the base plate, the upper end surface of the mounting plate is fixedly connected to the lower end surface of the support plate, and the lifting cylinder is fixedly connected to the mounting plate.

4. The automatic lifting and positioning device according to claim 1, characterized in that: A limit plate is horizontally fixedly connected to the guide rod of the lifting cylinder above the support plate.

5. The automatic lifting and positioning device according to claim 1, characterized in that: A support plate through hole is opened on the support plate, and a threaded hole connected to the support plate through hole is horizontally opened on the vertical end surface of the support plate on one side of the support plate through hole, the limit rod is inserted into the support plate through hole, and the fastening bolt is threadedly connected in the threaded hole and presses against the limit rod to fix the limit rod in the support plate.

Images