CN202606543U - Automation extruding-molding device for vibration hopper curve chassis - Google Patents

Abstract

The utility model discloses an automatic extrusion forming device for a vibrating hopper curved surface chassis, which comprises a frame, a concave die, a punch and a hydraulic drive device, the hydraulic drive device includes a hydraulic cylinder and a piston rod, and the punch includes a first round platform. A conical protrusion is provided on the surface of the first circular platform, and the die includes a second circular platform, and a conical groove is arranged on the surface of the second circular platform, and the conical protrusion of the first circular platform moves up to the second circular platform under the action of the hydraulic drive device. In the tapered groove of the second circular platform, a guide sleeve is arranged on the second circular platform, a guide post is arranged on the first circular platform, and the guide post passes through the guide sleeve. Compared with the prior art, the utility model adopts the automatic control of the hydraulic drive device, and the chassis is made by pressing the die and the punch, and the forming is fast. The column just passes through the center of the chassis, the positioning is accurate, and the machined chassis has precise dimensions and good consistency.

Description

Automatic Extrusion Forming Device for Vibrating Hopper Curved Surface Chassis

technical field

The utility model relates to a device for producing a vibrating hopper chassis, more specifically, an automatic extrusion forming device dedicated to a disc-type vibrating hopper curved surface chassis, and can be used for teaching, experimentation and research related to electro-hydraulic systems and their control. Research can also be used to study the influence of extrusion force on the deformation of stainless steel and other materials, as well as the failure and life of cold extrusion dies.

Background technique

The vibrating hopper is a new type of device that uses vibration transmission technology to realize continuous, efficient, and directional conveying of small workpieces. Due to its strong versatility, excellent alignment performance of the entire column, stable and reliable work, high feeding efficiency, simple structure, and mutual friction between workpieces It is small and not easy to damage materials, so it is widely used in automatic feeding and assembly of machinery, instrumentation, electronic components, light industry food, medicine, packaging and other industries, and is an indispensable equipment for automatic production.

The vibrating hopper is composed of a material tray, a supporting spring, an electromagnetic vibrator, a base and a damping foot, etc. As an important part of the vibrating hopper, the material tray is the real working place of the workpiece, and is the part of the vibrating hopper storage and conveying connection, so it is the basis of the whole device, and the chassis, as the core part of the material tray, has great influence on the entire material tray and even the entire vibration The performance of the hopper has a crucial influence.

The commonly used conical chassis structure of the disc vibrating hopper is shown in Figure 1, with a thickness of t=3mm, a diameter of Φ1=300mm, a taper of α=10°, and a hole of Φ2=16mm at the top.

At present, there is no professional manufacturing equipment for the curved chassis of the vibrating hopper in the domestic market. There are two main processing methods: one is through pure manual beating processing, which not only requires high technical requirements for workers, but also has high labor intensity and high production efficiency. Low, and the product accuracy cannot be guaranteed; the other is to manually operate the hydraulic jack to squeeze, and then manually trim, the production efficiency is not high and the product consistency is poor.

Contents of the invention

In order to fill the blank in the above field, the utility model provides an automatic extrusion forming device specially used for producing the curved surface chassis of the vibrating hopper. It can realize backlash-free transmission, smooth movement, small size and light weight.

In order to solve the above technical problems, the technical solution adopted by the utility model is: an automatic extrusion forming device for a vibrating hopper curved surface chassis, including a frame, a die, a punch and a hydraulic drive device, and the hydraulic drive device includes a hydraulic cylinder and the piston rod, one of the die and the punch is fixed on the frame, the other of the die and the punch is connected to the piston rod output end of a hydraulic drive device, and the hydraulic cylinder is set On the frame, it is characterized in that: the hydraulic drive device also includes a controller for controlling the input pressure of the hydraulic cylinder and a pressure transmitter for collecting the input pressure of the hydraulic cylinder, and the pressure transmitter is connected to the The oil inlet of the hydraulic cylinder described above, the punch includes a first circular platform, a tapered protrusion is arranged on the surface of the first circular platform, the concave mold includes a second circular platform, and the The surface of the second round table is provided with a conical groove, and the conical protrusion of the first round table moves up into the tapered groove of the second round table under the action of the hydraulic drive device. A guide sleeve is arranged on the second circular platform, a guide post is provided on the first circular platform, and the guide post passes through the guide sleeve.

The guide sleeve is arranged at the center of the second circular platform, and the said guide post is arranged at the center of the first circular platform.

The concave mold is fixed on the frame, and the convex mold is connected with the output end of the hydraulic drive device.

The die is fixed on the upper end of the frame, and the hydraulic drive device is fixed on the lower end of the frame.

An upper mold base is arranged on the upper end of the concave die, and the upper mold base is fixed on the second circular platform; a lower mold base is arranged on the lower end of the punch, and the lower mold base is fixed on the on the rack described above.

Compared with the prior art, the utility model adopts the automatic control of the hydraulic drive device, and the chassis is made by pressing the die and the punch, and the forming is fast. The column just passes through the center of the chassis, the positioning is accurate, and the machined chassis has precise dimensions and good consistency.

1) The structure of the die and punch is completely designed according to the shape and size of the chassis, which is specially used for this type of chassis, which can well ensure the accuracy and consistency of the produced chassis, and can also improve production efficiency;

(2) Both the die and punch are made of 45 steel and rounded after proper heat treatment to ensure their life and performance, and also meet the current production requirements;

(3) The die and the upper die base are connected by bolts and welded to the upper end of the frame, and the punch is installed in the middle of the frame through the lower die base;

(4) In order to adapt to stainless steel plates of different thicknesses, we designed the lower mold base to be adjustable in position, so that the position of the punch can be adjusted;

(5) The die is fixed on the frame and the punch is placed on the lower die seat through the guide column, so that the hydraulic lift placed directly under the punch can push the punch up.

The utility model can realize the continuous adjustment of the pressure within a certain range through the programming of the proportional overflow valve of the hydraulic drive device, and can carry out a series of researches related to the electro-hydraulic system control and the electro-hydraulic proportional control on this platform Work, such as in-depth analysis of hydraulic system flow control, direction control, multi-actuator control, and hydraulic cylinder design.

The utility model provides a new automatic device specially used for producing the curved surface chassis of the vibrating hopper, that is, the concave and convex molds are designed for the structure of the chassis, and the electronically controlled reversing valve, proportional overflow valve, pressure transmitter and hydraulic station are designed. Combined to drive the hydraulic lift as the power device of the mold, the output pressure of the hydraulic system can be changed by programming the set voltage of the proportional relief valve.

At the same time, the platform can also intuitively display the deformation of stainless steel and other materials during the extrusion process. It can also change the lifting force of the elevator through programming, and can detect the pressure value of the oil circuit in real time and convert it into an electrical signal. It can be widely used in teaching related to electro-hydraulic system and its control.

Description of drawings

Figure 1 is a schematic structural view of the curved surface chassis of the vibrating hopper of the present invention.

Fig. 2 is a structural schematic diagram of the automatic extrusion forming device for the curved surface chassis of the vibrating hopper of the utility model.

Fig. 3 is a schematic diagram of the structure of the die of the utility model.

Fig. 4 is a cross-sectional view along line A-A of Fig. 3 .

Fig. 5 is a schematic structural view of the punch of the present invention.

Fig. 6 is a schematic diagram of the extrusion process of the extrusion device of the present invention.

Among them: 1 and 11 are square steel, 6 and 14 are channel steel, 8 and 12 are flat steel, 7 and 13 are reinforcing ribs, 2 is the upper mold base, 3 is the die, 31, the second round table, 32, the cone 4 is the lower mold seat, 5 is the punch, 51, the first round table, 52, the conical protrusion, 9 is the pressure transmitter, 10 is the hydraulic lift fixing seat, 15 is the hydraulic lift, 16 is the guide Cover, 17 is guide post, 18. chassis.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.

Embodiment 1, the automatic extrusion molding device for the curved surface chassis of the vibrating hopper is composed of a frame part, a mold part, a guide part, a hydraulic system and a control part, wherein the hydraulic system and the control part are separated from the mechanical structure part, and the power line, signal Wires and oil pipes are connected with mechanical parts.

The mold structure of this device is shown in Figure 3, Figure 4 and Figure 5, and punch comprises a first circular platform, and a conical projection is arranged on the first circular platform surface, and die comprises a second circular platform, and on the second circular platform surface A conical groove is provided, and the conical protrusion of the first circular platform moves up into the conical groove of the second circular platform under the action of the hydraulic driving device.

The mechanical structure of the device is shown in Figure 2, consisting of top square steel 1, upper mold base 2, die 3, lower mold base 4, punch 5, side channel steel 6, rib 7, bottom flat steel 8, The hydraulic elevator fixed seat 10, the bottom square steel 11, the bottom flat steel 12, the reinforcing rib 13, the side channel steel 14, the guide sleeve 16, the guide post 17, the pressure transmitter 9 and the hydraulic lift 15 are composed.

The invention discloses an automatic extrusion molding device for a curved surface chassis of a vibrating hopper, which is composed of a mold part, a frame part, a guide part, a drive control part and a hydraulic system part.

The mold part of the automatic extrusion forming device for the curved surface chassis of the vibrating hopper includes a punch, a die, an upper mold base and a lower mold base.

(1) The guide sleeve is directly installed in the middle of the square steel on the top of the frame through bolts, which can avoid additional design of additional guiding mechanisms, reduce parts and reduce costs;

(2) Clearance fit and secondary precision tolerance are adopted between the guide post and the guide sleeve, and the guide post and the punch are threaded together;

The frame of the frame part includes an upper beam 1, a reinforcing rib 2, a column 3, a reinforcing rib 4, a base 5, a base 6, a base 7, a reinforcing rib 8, and a column 9.

The frame part is welded by a combination of square steel, channel steel and flat steel, and the side part is welded with reinforcing ribs, which can not only ensure the stability of the whole device, but also reduce the cost, avoid the trouble of machining, and can also be easily A good use effect can be achieved, and there are great economic and social benefits.

The drive control circuit drives and controls the hydraulic lift 15 to work according to the set parameter value.

(1) The drive control circuit includes an initial control signal generation circuit, a remote control signal transceiver circuit and a feedback signal processing circuit to form an electro-hydraulic proportional control system, which can also be integrated into an integrated control box;

(2) The hydraulic system and control part are separated from the overall device, and are only connected to the overall device through power lines, signal lines and oil pipes. The hydraulic station adopts a radial valve plunger hydraulic pump;

(3) A pressure transmitter 9 is installed at the end of the oil circuit of the hydraulic system, that is, at the oil inlet of the hydraulic lift 15, and the input pressure of the hydraulic lift 15 is collected in real time through the pressure transmitter 9 and converted into an electrical signal and fed back to the The most is the control signal to form a closed-loop system;

(4) The hydraulic system, control part and power supply part can be integrated into one.

Extrusion process: It can be seen from Figure 6 that the worker puts the pre-cut stainless steel sheet through the guide post 17 and places it horizontally between the die 3 and the punch 5, then screws the guide post 17 into the punch 5, presses Press the start button, the controller drives the hydraulic lifter 15 to jack up the punch 5, and when the thin plate reaches the denaturation requirement, the stop button is pressed, and the whole device resets. At this time, the guide post 17 can be unscrewed to take out the processed chassis 18.

The mold is installed on the frame through the mold base, and the hydraulic lift is placed on the frame through the base, which increases the mobility of the whole device. The frame part is welded by profile combination, which can not only ensure the stability of the whole device, but also reduce the cost and avoid the trouble of machining, and at the same time, it can also achieve a good use effect, which has great economic and social benefits. .

The mold part is respectively installed on the frame through the mold base, wherein the die and the upper mold base are connected by bolts and then welded to the upper end of the frame, and the punch is installed in the middle of the frame through the lower mold base, and its position can be adjusted. Adjustment. The hydraulic control part is composed of a proportional overflow valve and an electric control reversing valve, and the two valves are directly integrated on the hydraulic station through the valve seat. The die is fixed on the frame and the punch is installed on the lower die base, so that the hydraulic lift placed directly below the punch can push the punch up.

The hydraulic system and control part are separated from the overall device, and are only connected to the overall device through power lines, signal lines and oil pipes. The hydraulic station adopts a radial valve plunger hydraulic pump; the hydraulic system, control part and power supply part can be integrated into a One. At the same time, the control system is based on the low-power, high-performance CMOS 8-bit microcontroller STC89C52 microcontroller, and includes A/D modules with ADC0809 as the core, D/A modules with DAC0832 as the core, and serial port modules with max232 as the core. On the basis of meeting industrial requirements, the cost is reduced and the whole control system becomes simpler.

The power device of the device adopts hydraulic transmission, the actuator is stable when starting and braking, the impact is small, the stability is good, and the reliability is high. Liquid control to meet the requirements of automation, and lay a solid foundation for future productization.

Claims (5)

1. An automatic extrusion forming device for a vibrating hopper curved surface chassis, comprising a frame, a die, a punch and a hydraulic drive, wherein the hydraulic drive includes a hydraulic cylinder and a piston rod, and in the die and the punch One is fixed on the frame, the other of the die and the punch is connected to the piston rod output end of a hydraulic drive device, the hydraulic cylinder is arranged on the frame, and it is characterized in that: the hydraulic pressure The driving device also includes a controller for controlling the input pressure of the hydraulic cylinder and a pressure transmitter for collecting the input pressure of the hydraulic cylinder, the pressure transmitter is connected to the oil inlet of the hydraulic cylinder, and the punch It includes a first circular truncated surface, a tapered protrusion is provided on the surface of the first circular truncated table, the concave mold includes a second circular truncated surface, and a tapered groove is provided on the surface of the second circular truncated table. The conical projection of the first circular platform moves up into the conical groove of the second circular platform under the action of the hydraulic drive device, and a guide sleeve is arranged on the second circular platform, and the first A guide post is arranged on the round platform, and the guide post passes through the guide sleeve. 2. The automatic extrusion molding device for the curved chassis of the vibrating hopper according to claim 1, characterized in that: the guide sleeve is arranged at the center of the second circular platform, and the guide column is arranged at the center of the first circular platform. 3. The automatic extrusion molding device for the curved surface chassis of the vibrating hopper according to claim 1, characterized in that: the die is fixed on the frame, and the punch is connected to the output end of the hydraulic drive device . 4. The automatic extrusion molding device for the curved chassis of the vibrating hopper according to claim 2, wherein the die is fixed on the upper end of the frame, and the hydraulic drive device is fixed on the lower end of the frame. 5. According to claim 1, 2, 3 or 4, the automatic extrusion molding device for the curved surface chassis of the vibrating hopper is characterized in that: an upper mold base is arranged on the upper end of the concave die, and the upper mold base is fixed On the second round table; a lower mold base is arranged at the lower end of the punch, and the lower mold base is fixed on the frame.

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