Automatic filter screen taking and placing device

Abstract

The utility model relates to an automatic filter screen taking and placing device which comprises a base, a sleeve is arranged on the lower portion of the base, a floating head capable of floating up and down is arranged at the bottom end of the sleeve, an ejector rod capable of moving up and down is inserted into the floating head, a limiting portion is arranged at the bottom end of the ejector rod, and the upper end of the ejector rod is upwards connected into the sleeve. The upper portion of the ejector rod is sleeved with a reset spring, and the reset spring is clamped between the sleeve and the floating head. The floating head is provided with a magnetic block, the bottom end of the floating head protrudes downwards to form a plurality of arrayed blocking bodies, a limiting space used for containing the filter screen is defined by the blocking bodies, and the inner wall of each blocking body is in an arc shape. According to the utility model, a magnetic suction mode is adopted to replace the traditional mechanical grabbing mode, the filter screen can be more stably and accurately sucked, the use of mechanical parts can be reduced, the failure rate is reduced, and the blocking body is additionally arranged, so that the problems that the filter screen deviates from the center of the floating head and is thrown out in the moving process of the manipulator are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of part casting technology, specifically, it shows an automatic filter screen taking and placing device. BACKGROUND

[0002] Low pressure casting is a commonly used casting process for manufacturing various metal products such as automobile parts, industrial machinery parts, etc. During the low pressure casting process, the metal liquid flows at high speed, which is easy to carry gas, inclusions and other impurities. These impurities entering the inside of the casting will cause defects such as porosity, slag inclusion, shrinkage cavity, etc., which seriously affect the quality and performance of the casting.

[0003] The main function of the low pressure casting filter is to remove impurities and impurity particles in the metal liquid to ensure the purity of the metal liquid. The filter is usually made of metal mesh, which has high temperature corrosion resistance and good filtering effect. By adding a filter, bubbles, inclusions and solid particles in the metal liquid can be effectively filtered out, making the metal liquid more pure and stable.

[0004] Currently, the production process of low pressure casting filter has realized automatic placement of filter screen. However, there is still room for improvement in the existing automatic system. The existing system still has room for improvement in terms of accuracy, speed and adaptability of filter screen placement. For example, in the prior art, the filter screen is attracted by three electrodes after being given magnetic properties by a magnet. However, the magnetic force at the three electrodes will be different, causing the filter screen to be ejected unevenly. Moreover, the magnetic force control of the three electrodes is very unstable, and there is a problem of taking out two filter screens at a time, which causes abnormal wear of the filter screen. The filter screen is also unstable during the filter screen clamping process, which causes the filter screen to accidentally fall into the mold, easily causing product scrap. Due to these technical problems, the inventor considers improving the existing filter screen clamping structure. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an automatic filter screen taking and placing device which can continuously and stably complete the filter screen taking and placing task.

[0006] The technical scheme is as follows:

[0007] An automatic filter screen taking and placing device comprises a base, a sleeve is arranged at the lower part of the base, a floating head capable of floating up and down is arranged at the bottom end of the sleeve, a jack capable of moving up and down is inserted into the floating head, a limiting part is arranged at the bottom end of the jack, the upper end of the jack is connected to the sleeve in the sleeve, a return spring is arranged outside the upper part of the jack, and the return spring is clamped between the sleeve and the floating head; the floating head is provided with a magnetic block, a plurality of arrays of blocking bodies are protrudingly arranged at the bottom end of the floating head downward, and a limiting space for accommodating the filter screen is surrounded, and the inner wall of the blocking body is arc-shaped.

[0008] Further, the magnetic block is arranged inward from the mounting through hole at the middle position of the bottom end of the floating head, and there is a certain spacing between the bottom end surface of the magnetic block and the bottom end surface of the mounting through hole. The magnetic force strength of the magnetic block is reasonably controlled, so that the magnetic block can just attract one filter screen.

[0009] Further, the bottom end of the mounting through hole is provided with a dustproof cover plate. The dust and iron filings on the mold are prevented from entering the mounting through hole and affecting the magnetic attraction effect of the magnetic block.

[0010] Further, the bottom end of the floating head is provided with four blocking bodies in a cross-shaped distribution. In order to match the reserved hole on the mold, cross positioning is performed.

[0011] Further, the outer wall of the blocking body constitutes a mold matching part. In order to adapt to different molds, the shape of the mold matching part is reasonably adjusted, so that the mold matching part can be matched with the reserved hole on the mold.

[0012] Further, the sleeve is provided with an optical fiber sensor, and the lower part of the optical fiber sensor penetrates outward from the rear of the floating head. The presence or absence of the filter screen can be accurately detected through the optical fiber sensor, so that the filter screen can be quickly, accurately and automatically taken and placed, the response speed is fast, the failure rate is low, and the production efficiency and product quality are improved.

[0013] Further, the bottom end of the sleeve is provided with a downwardly open insertion slot, the inside of the bottom end of the sleeve is provided with a connecting plate, the floating head is inserted in the insertion slot and can move up and down, and the upper end of the top rod is connected with the connecting plate through a bolt. Convenient to disassemble and assemble.

[0014] Further, four top rods are movably inserted in the floating head, and the four top rods are arranged in a rotational symmetry around the magnetic block. The floating head can stably move up and down relative to the sleeve, and the stress is uniform.

[0015] Compared with the prior art, the beneficial effects of the present application are that: the magnetic force attraction mode is used instead of the traditional mechanical grabbing, the filter screen can be more stably and accurately attracted, and the use of mechanical parts can be reduced, and the failure rate can be reduced; the reset spring can more stably and reliably reset the top rod, avoiding the complex parts and high cost and high failure rate caused by the traditional cylinder reset mode, improving the reliability and service life of the equipment; the blocking body positioning and limiting mode effectively avoids the problems of filter screen deviation from the center of the floating head and filter screen being thrown out during the movement of the mechanical hand. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of an automatic filter screen taking and placing device according to an embodiment of the present application;

[0017] Figure 2 is Figure 1 a sectional structure schematic view;

[0018] Figure 3 is Figure 2 a partial enlarged schematic view of part A in

[0019] Relevant marks in the drawings: 10-filter screen, 1-base, 2-sleeve, 3-floating head, 21-optical fiber sensor, 22-slot, 23-connection plate, 24-bolt, 31-top rod, 311-limiting part, 312-reset spring, 32-magnetic block, 33-obstructing body, 331-mold matching part, 34-mounting through hole, 35-dust cover plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model

[0021] The embodiment of the utility model provides a kind of automatic filter screen taking and placing device, to solve the technical problem proposed in background art.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 As shown. Mainly including base 1, base is mainly used to be connected with the mechanical hand of outside, is driven by mechanical hand this device to carry out corresponding activity, be provided with sleeve 2 in the lower part of base 1, be provided with the floating head 3 that can float up and down in the bottom end of sleeve 2, top rod 31 is inserted and arranged in floating head 3 and can move up and down, the bottom end of top rod 31 is provided with limiting part 311, the upper end of top rod 31 is connected in sleeve 2 upwards, reset spring 312 is sheathed on the upper part of top rod 31, reset spring 312 is clamped between sleeve 2 and floating head 3;Floating head 3 has magnetic block 32, a plurality of arrayed obstructing bodies 33 are set down and protrude on the bottom end of floating head 3, and are surrounded to form the limiting space for accommodating filter screen 10, the inner wall of obstructing body 33 is arc-shaped.

[0023] In the initial state, under the elastic force of the reset spring 312, the floating head 3 is pushed downward, and the limiting portion 311 at the bottom end of the jacking rod 31 is in contact with the bottom end surface of the floating head 3; after being attracted to the filter screen 10 by the magnetic block 32, the mechanical hand drives the device to move above the mold and vertically falls until reaching the working position, the mechanical hand exerts a vertical downward force on the device, the sleeve 2 and the floating head 3 slide relative to each other, so that the jacking rod 31 and the floating head 3 also produce relative displacement, the limiting portion 311 at the bottom end of the jacking rod 31 moves the attracted filter screen 10 away from the bottom end of the floating head 3, so that the filter screen 10 is accurately placed in the preset position, and then the mechanical hand moves upward, under the elastic force of the reset spring 312, the floating head 3 is pushed downward, and the limiting portion 311 at the bottom end of the jacking rod 31 is again in contact with the bottom end surface of the floating head 3, and the above-mentioned filter screen taking and placing process is repeatedly performed.

[0024] The magnetic attraction mode is used instead of the traditional mechanical grabbing, which can more stably and accurately attract the filter screen, and can reduce the use of mechanical parts and the failure rate; the reset spring is used, which can more stably and reliably reset the jacking rod, avoiding the high cost and high failure rate of complex parts caused by the traditional cylinder reset mode, and improving the reliability and service life of the equipment; the blocking body positioning and limiting mode effectively avoids the problems of filter screen deviation from the center of the floating head and filter screen being thrown out during the movement of the mechanical hand.

[0025] In the embodiment, the magnetic block 32 is arranged inward from the mounting hole 34 at the middle position of the bottom end of the floating head 3, and the bottom end surface of the magnetic block 32 is spaced apart from the bottom end surface of the mounting hole 34. The magnetic block is slightly away from the bottom end surface of the floating head, which can reasonably control the magnetic force strength of the magnetic block, so that the magnetic block can just attract one filter screen.

[0026] The bottom end of the mounting hole 34 is provided with a dustproof cover plate 35. The dustproof cover plate is added at the bottom end of the mounting hole to avoid the entry of iron filings and other impurities on the mold or other places into the mounting hole, which affects the magnetic attraction effect of the magnetic block.

[0027] In the embodiment, four blocking bodies 33 in cross-shaped distribution are arranged at the bottom end of the floating head 3. The four blocking bodies are used to quickly match the reserved hole on the mold for cross positioning, which facilitates the movement of the mechanical hand to the position, reduces the time for correcting the position, and improves the working efficiency.

[0028] The outer wall of the blocking body 33 constitutes a mold matching portion 331. In order to adapt to different molds, the shape of the mold matching portion is reasonably adjusted, so that the mold matching portion can be matched with the reserved hole on the mold.

[0029] In the embodiment, the sleeve 2 is provided with an optical fiber sensor 21, and the lower part of the optical fiber sensor 21 is exposed outwardly downwardly after penetrating the floating head 3. The existence of the filter screen can be accurately detected through the optical fiber sensor, the filter screen can be quickly, accurately and automatically taken and placed, the response speed is fast, the failure rate is low, and the production efficiency and product quality are improved.

[0030] In addition, the bottom end of the sleeve 2 is provided with a downwardly open slot 22, the inside upper part of the bottom end of the sleeve 2 is provided with a connecting plate 23, the floating head 3 is movably inserted into the slot 22, and the upper end of the jacking rod 31 is connected with the connecting plate 23 through a bolt 24. In this way, the dismounting and mounting of the floating head can be very convenient, and the subsequent maintenance work is also facilitated.

[0031] The four jacking rods 31 are movably inserted into the floating head 3, and the four jacking rods 31 are symmetrically arranged around the magnetic block 32. The four jacking rods can ensure that the floating head can stably move up and down relative to the sleeve, and the floating head is uniformly stressed.

[0032] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. An automatic filter screen taking and placing device, characterized in that, The base (1) is provided with a sleeve (2) at the lower part, the bottom end of the sleeve (2) is provided with a floating head (3) which can float up and down, the floating head (3) is movably inserted with a top rod (31) inside, the bottom end of the top rod (31) is provided with a limiting part (311), the upper end of the top rod (31) is connected to the sleeve (2) upward, the upper part of the top rod (31) is sleeved with a reset spring (312), the reset spring (312) is clamped between the sleeve (2) and the floating head (3); the floating head (3) is provided with a magnetic block (32), the bottom end of the floating head (3) is provided with a plurality of arrays of blocking bodies (33) which are protruded downward and surround a limiting space for accommodating the filter screen (10), the inner wall of the blocking body (33) is arc-shaped.

2. The automatic filter screen taking and placing device according to claim 1, characterized in that, The magnetic block (32) is arranged inward from the mounting hole (34) at the middle position of the bottom end of the floating head (3), and the bottom end surface of the magnetic block (32) is spaced from the bottom end surface of the mounting hole (34).

3. An automatic filter screen taking and placing device according to claim 2, characterized in that The bottom end of the mounting hole (34) is provided with a dustproof cover plate (35).

4. The automatic filter screen taking and placing device according to claim 1, characterized in that, The bottom end of the floating head (3) is provided with four blocking bodies (33) which are distributed in cross shape.

5. An automatic filter screen taking and placing device according to claim 4, characterized in that The outer wall of the blocking body (33) constitutes a mold matching part (331).

6. The automatic filter screen taking and placing device according to claim 1, characterized in that, The sleeve (2) is provided with an optical fiber sensor (21), the lower part of the optical fiber sensor (21) is exposed outward after penetrating through the floating head (3) downward.

7. The automatic filter screen taking and placing device according to claim 1, characterized in that, The bottom end of the sleeve (2) is provided with a downwardly open insertion slot (22), the inside of the bottom end of the sleeve (2) is provided with a connecting plate (23), the floating head (3) is movably inserted in the insertion slot (22), and the upper end of the top rod (31) is connected with the connecting plate (23) through a bolt (24).

8. An automatic filter screen taking and placing device according to claim 7, characterized in that The floating head (3) is movably inserted with four top rods (31) inside, the four top rods (31) are arranged in rotational symmetry around the magnetic block (32).

Images