A material automatic loading system

Abstract

The present application discloses an automatic material loading system, which relates to the technical field of material loading. The automatic material loading system includes a support frame, a furnace table and a guide mechanism arranged on the support frame, a first pin shaft and a second pin shaft are arranged on the furnace table at intervals, and the automatic material loading system also includes an AGV forklift, the AGV forklift includes a vehicle body, and a walking fork foot and a lifting fork foot arranged on the vehicle body, a positioning fixture is arranged on the lifting fork foot, and a photoelectric switch is arranged on the positioning fixture for detecting the posture of the material rack on the positioning fixture, wherein the material rack is used to carry materials and load them on the furnace table, and the guide mechanism is used to guide the walking fork foot. It can improve the accuracy of material loading and improve the reliability and safety during use.

Description

Technical Field

[0001] The present application relates to the technical field of material loading, and in particular to an automatic material loading system. Background Art

[0002] With the rapid development of economy and the continuous progress of science and technology, it has become inevitable and a social consensus that AGV intelligent forklifts will replace manual forklifts. AGVs have been widely used in the production lines of the manufacturing industry, and can complete material handling tasks efficiently, accurately and flexibly, greatly improving the flexibility of production and the competitiveness of enterprises.

[0003] In current technology, AGV forklifts are usually used to load, process, disassemble and transport materials in harsh environments. However, due to the operating accuracy of AGV forklifts, it is impossible to effectively load materials that require high-precision placement, affecting the normal production process. For example, when placing materials at a specific location in a heat treatment furnace, if it cannot be accurately delivered to a specific location, there may be a risk of falling, affecting the quality of the parts and creating safety hazards for the equipment or personnel working in the surrounding area. Summary of the invention

[0004] The purpose of this application is to provide an automatic material loading system that can improve the accuracy of material loading and improve reliability and safety during use.

[0005] The embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides an automatic material loading system, including a support frame, a furnace table and a guide mechanism arranged on the support frame, wherein a first pin shaft and a second pin shaft are arranged on the furnace table at intervals, and the automatic material loading system also includes an AGV forklift, the AGV forklift includes a vehicle body, and a walking fork foot and a lifting fork foot arranged on the vehicle body, the lifting fork foot is provided with a positioning fixture, and the positioning fixture is provided with a photoelectric switch for detecting the posture of the material rack on the positioning fixture, wherein the material rack is used to carry materials and load them on the furnace table, and the guide mechanism is used to guide the walking fork foot.

[0007] Optionally, the positioning fixture includes a first support arm and a second support arm that are relatively arranged, the first support arm and the second support arm are fixedly connected by a connecting arm, and the photoelectric switches are respectively arranged on the first support arm and the second support arm so that the photoelectric switches are respectively facing the space between the first support arm and the second support arm.

[0008] Optionally, a mounting seat is provided on the first supporting arm and the second supporting arm respectively, a heat-insulating transparent protective cover is provided on the mounting seat, and the photoelectric switch is located inside the heat-insulating transparent protective cover.

[0009] Optionally, the guide mechanism includes a first guide rod and a second guide rod arranged in parallel, the first guide rod and the second guide rod are fixedly connected by a connecting rod, and a plurality of accommodating cavities are respectively provided on opposite sides of the first guide rod and the second guide rod, and a pulley assembly is provided in the accommodating cavity.

[0010] Optionally, the pulley assembly includes a rotating shaft and a bearing arranged on the rotating shaft, the pulley assembly is connected to the first guide rod and the second guide rod respectively through the rotating shaft, and the outer ring of the bearing protrudes from the opposite sides of the first guide rod and the second guide rod.

[0011] Optionally, guide surfaces are respectively provided on opposite sides of the inlet ends of the first guiding rod and the second guiding rod.

[0012] Optionally, the positioning fixture is fixed to the lifting fork leg by welding, and the positioning fixture is made of high temperature resistant material.

[0013] Optionally, the support frame includes a plurality of columns arranged in parallel, the plurality of columns are connected by a plurality of support panels arranged in parallel, and the plane where the support panels are located is perpendicular to the straight line where the columns are located.

[0014] Optionally, the furnace base includes a plurality of furnace bases, the plurality of furnace bases are respectively arranged on the support panel, and the furnace bases overlap on the orthographic projection of the support panel, and the guide mechanism is arranged in a one-to-one correspondence with the furnace bases arranged on the same support panel.

[0015] Optionally, the walking fork leg comprises a first fork leg matched with the first guide rod, and a second fork leg matched with the second guide rod, and rollers are respectively provided on the first fork leg and the second fork leg.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The material automatic loading system provided by the embodiment of the present application uses the first pin and the second pin arranged at intervals on the furnace platform. In the process of loading the material rack with materials on the furnace platform, if the deviation between the material rack and the furnace platform is within the allowable deviation range, the material rack can be normally loaded on the furnace platform, and the first pin and the second pin can also limit the material rack; if the deviation between the material rack and the furnace platform is outside the allowable deviation range, the first pin and the second pin will abut against the material rack, and the material rack cannot be normally loaded on the furnace platform. At the same time, since the material rack is abutted by the first pin and / or the second pin, it will cause the material rack to tilt. At this time, the photoelectric switch set on the positioning fixture will be blocked by the material rack, causing the signal state of the photoelectric switch to change. The AGV forklift can timely control the lifting fork to stop according to the change of the state signal to prevent the material rack and the materials on the material rack from falling. During the positioning process between the positioning fixture on the lifting fork and the furnace table, the walking fork cooperates with the guide mechanism set on the support frame, so that the AGV forklift moves along a specific path, which is conducive to ensuring the positioning accuracy and thus improving the loading accuracy. At the same time, combined with the detection of the material rack status by the photoelectric switch, it is conducive to improving the reliability and safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the support frame and the guide mechanism provided in the embodiment of the present application;

[0020] Figure 2 One of the structural schematic diagrams of the AGV forklift provided in the embodiment of the present application;

[0021] Figure 3 The second structural schematic diagram of the AGV forklift provided in the embodiment of the present application;

[0022] Figure 4 for Figure 2 A partial enlarged view of the middle A;

[0023] Figure 5 One of the structural schematic diagrams of the guide mechanism provided in the embodiment of the present application;

[0024] Figure 6 The second structural diagram of the guide mechanism provided in the embodiment of the present application;

[0025] Figure 7A schematic diagram of the structure of the AGV forklift and the guide mechanism provided in an embodiment of the present application.

[0026] Icons: 105-material rack; 107-material; 110-support frame; 112-column; 114-support panel; 120-furnace table; 122-first pin; 124-second pin; 130-guide mechanism; 132-first guide rod; 134-second guide rod; 136-connecting rod; 138-pulley assembly; 1382-rotating shaft; 1384-bearing; 139-guide surface; 140-AGV forklift; 142-body; 144-travel fork foot; 1442-first fork foot; 1444-second fork foot; 1446-roller; 146-lifting fork foot; 147-positioning fixture; 1472-first support arm; 1474-second support arm; 1476-connecting arm; 1478-mounting seat; 148-photoelectric switch. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 The embodiment of the present application provides an automatic loading system for material 107, including a support frame 110, and a furnace table 120 and a guide mechanism 130 arranged on the support frame 110, and a first pin shaft 122 and a second pin shaft 124 are arranged on the furnace table 120 at intervals. The automatic loading system for material 107 also includes an AGV forklift 140, and the AGV forklift 140 includes a vehicle body 142, and a walking fork foot 144 and a lifting fork foot 146 arranged on the vehicle body 142, and a positioning fixture 147 is arranged on the lifting fork foot 146, and a photoelectric switch 148 is arranged on the positioning fixture 147 for detecting the posture of the material rack 105 on the positioning fixture 147, wherein the material rack 105 is used to carry the material 107 and load it on the furnace table 120, and the guide mechanism 130 is used to guide the walking fork foot 144.

[0032] Specifically, a furnace table 120 is arranged on the support frame 110, and the furnace table 120 is used to place a material rack 105. The material rack 105 has a material 107. The furnace table 120 is provided with a first pin shaft 122 and a second pin shaft 124 at intervals. If the material rack 105 is to be stably placed on the furnace table 120, the material rack 105 needs to be provided with corresponding through holes corresponding to the first pin shaft 122 and the second pin shaft 124. When the material rack 105 is placed on the furnace table 120, if the position of the material rack 105 deviates, the first pin shaft 122 and the second pin shaft 124 will be skewed from the through holes, and the material rack 105 cannot be lowered normally.

[0033] In the process of placing the material rack 105, that is, in the process of using the AGV forklift 140 to load the material rack 105 on the furnace table 120, the material rack 105 is located on the positioning fixture 147 set on the lifting fork leg 146. Under normal conditions, the material rack 105 is in a horizontally placed state. In the process of loading the material rack 105 on the furnace table 120 through the positioning fixture 147, if the loading position accuracy of the material rack 105 is not enough, the material rack 105 will be affected by the first pin shaft 122 or the second pin shaft 124, and the material rack 105 will tilt. In this way, the photoelectric switch 148 provided on the positioning fixture 147 will be blocked by the material rack 105, and the controller of the AGV forklift 140 connected to the photoelectric switch 148 will control the AGV forklift 140 to stop according to the state change of the signal to prevent the material rack 105 and the material 107 on the material rack 105 from falling.

[0034] In the process of using the AGV forklift 140 to load the material rack 105 on the furnace table 120, the walking fork legs 144 of the AGV forklift 140 cooperate with the guide mechanism 130 set on the support frame 110, so that the AGV forklift 140 corresponds to the furnace table 120 set on the support frame 110 along a specific path, which is beneficial to improving the positioning accuracy when the material rack 105 is loaded by the AGV forklift 140.

[0035] The automatic loading system for material 107 provided in the embodiment of the present application, through the first pin shaft 122 and the second pin shaft 124 spaced apart on the furnace table 120, when loading the material rack 105 with the material 107 placed on the furnace table 120, if the deviation between the material rack 105 and the furnace table 120 is within the allowable deviation range, the material rack 105 can be normally loaded on the furnace table 120, and the first pin shaft 122 and the second pin shaft 124 can also limit the material rack 105; if the deviation between the material rack 105 and the furnace table 120 is outside the allowable deviation range, the first pin shaft 122 and the second pin shaft 124 will abut against the material rack 105, and the material rack 105 cannot be normally loaded on the furnace table 120. At the same time, since the rack 105 is supported by the first pin 122 and / or the second pin 124, the rack 105 will be tilted. At this time, the photoelectric switch 148 provided on the positioning fixture 147 will be blocked by the rack 105, so that the signal state of the photoelectric switch 148 changes. The AGV forklift 140 can timely control the lifting fork foot 146 to stop the action according to the change of the state signal to prevent the rack 105 and the material 107 on the rack 105 from falling. In the process of positioning between the positioning fixture 147 on the lifting fork foot 146 and the furnace 120, the walking fork foot 144 cooperates with the guide mechanism 130 provided on the support frame 110, so that the AGV forklift 140 moves along a specific path, which is conducive to ensuring the positioning accuracy, thereby improving the loading accuracy. At the same time, combined with the detection of the state of the rack 105 by the photoelectric switch 148, it is conducive to improving the reliability and safety during use.

[0036] like Figure 2 As shown, the positioning fixture 147 includes a first support arm 1472 and a second support arm 1474 that are relatively arranged. The first support arm 1472 and the second support arm 1474 are fixedly connected by a connecting arm 1476, and the photoelectric switch 148 is respectively arranged on the first support arm 1472 and the second support arm 1474 so that the photoelectric switch 148 is respectively directed to the space between the first support arm 1472 and the second support arm 1474.

[0037] Specifically, the photoelectric switch 148 can be a through-beam photoelectric switch, which consists of a transmitter and a receiver. The light emitted by the transmitter can directly enter the receiver. When the detected object passes between the transmitter and the receiver and blocks the light, the photoelectric switch 148 generates a switch signal. The characteristics of the through-beam photoelectric switch are: it can identify opaque reflective objects, has a large effective distance, is not easily interfered with, has high sensitivity, high resolution, high brightness, low power consumption, fast response time, and long service life. For example, when using a through-beam photoelectric switch, the transmitter can be set on the first bracket 1472, the receiver can be set on the second bracket 1474, and the space where the positioning fixture 147 places the material rack 105 is located between the transmitter and the receiver, so as to facilitate the detection of the state of the material rack 105. During the loading process, if the through holes on the material rack 105 do not match the first pin 122 and the second pin 124 on the furnace table 120, the bottom of the material rack 105 will be lifted up, the material rack 105 will tilt, the shooting switch will fail, and the AGV forklift 140 will alarm and stop, thus timely preventing the material rack 105 and material 107 from falling or even damage to the production equipment, while avoiding safety hazards.

[0038] like Figure 2 and Figure 4 As shown, a mounting seat 1478 is provided on the first supporting arm 1472 and the second supporting arm 1474 respectively, a heat-insulating transparent protective cover is provided on the mounting seat 1478, and the photoelectric switch 148 is located in the heat-insulating transparent protective cover.

[0039] Specifically, during the process of loading the material rack 105 on the furnace table 120, if the furnace table 120 is in a heat treatment device, the temperature at the furnace table 120 will be high. At this time, when the material rack 105 is loaded by the positioning fixture 147, the photoelectric switch 148 on the positioning fixture 147 may be affected by the environment. By setting a heat-insulating transparent protective cover on the mounting seat 1478 and setting the photoelectric switch 148 in the protective cover, it is helpful to ensure the stability of the photoelectric switch 148 when in use. Among them, the heat-insulating transparent protective cover can be made of high-temperature resistant glass fiber material.

[0040] like Figure 5 As shown, the guide mechanism 130 includes a first guide rod 132 and a second guide rod 134 arranged in parallel, the first guide rod 132 and the second guide rod 134 are fixedly connected by a connecting rod 136, and a plurality of accommodating cavities are respectively arranged on opposite sides of the first guide rod 132 and the second guide rod 134, and a pulley assembly 138 is arranged in the accommodating cavity.

[0041] Specifically, by arranging the pulley assembly 138 on the side opposite to the first guide rod 132 and the second guide rod 134, when the walking fork leg 144 enters along the guide mechanism 130, the friction force is small, which is conducive to improving the coordination between the guide mechanism 130 and the walking fork leg 144, and at the same time, avoiding the walking fork leg 144 from being stuck when entering and exiting along the guide mechanism 130, which is conducive to improving the reliability of coordination. Among them, the embodiment of the present application does not specifically limit the arrangement form of the first guide rod 132 and the second guide rod 134. For example, the first guide rod 132 and the second guide rod 134 can adopt a solid rod-shaped structure, and a receiving cavity is opened at the location where the pulley assembly 138 is arranged, so as to facilitate the arrangement of the pulley assembly 138. The first guide rod 132 and the second guide rod 134 can also adopt a hollow structure. In this way, the first guide rod 132 and the second guide rod 134 are naturally formed with the said receiving cavity, so as to facilitate the arrangement of the pulley assembly 138.

[0042] like Figure 6 As shown, the pulley assembly 138 includes a rotating shaft 1382 and a bearing 1384 arranged on the rotating shaft 1382. The pulley assembly 138 is connected to the first guide rod 132 and the second guide rod 134 respectively through the rotating shaft 1382, and the outer ring of the bearing 1384 protrudes from the opposite sides of the first guide rod 132 and the second guide rod 134.

[0043] Specifically, at least one bearing 1384 is provided on the rotating shaft 1382. For example, one bearing 1384 or two bearings 1384 may be provided on each rotating shaft 1382. The rotating shaft 1382 may be connected and fixed to the first guide rod 132 or the second guide rod 134 by a retaining spring, as long as the stability of the connection can be ensured.

[0044] like Figure 5 As shown, guide surfaces 139 are respectively provided on the opposite sides of the entrance ends of the first guide rod 132 and the second guide rod 134. The above-mentioned method is conducive to better alignment of the walking fork 144 with the guide mechanism 130, so that the walking fork 144 can enter the guide mechanism 130 more smoothly.

[0045] In an optional embodiment of the present application, the positioning fixture 147 is welded and fixed to the lifting fork leg 146, and the positioning fixture 147 is made of high temperature resistant material. In the above manner, when the material rack 105 is loaded through the positioning fixture 147, the positioning fixture 147 can be prevented from being deformed due to excessive temperature, which is conducive to improving the structural stability and reliability of the positioning fixture 147.

[0046] like Figure 1As shown, the support frame 110 includes a plurality of parallel columns 112 , and the plurality of parallel columns 112 are connected by a plurality of parallel support panels 114 , and the plane where the support panels 114 are located is perpendicular to the straight line where the columns 112 are located.

[0047] Specifically, by adopting the above-mentioned method, a furnace table 120 can be arranged on each supporting panel 114 , which is beneficial to increase the number of furnace tables 120 that can be arranged on the supporting frame 110 , thereby facilitating improving the space utilization rate of the supporting frame 110 .

[0048] like Figure 1 and Figure 7 As shown, the furnace stage 120 includes multiple furnace stages 120, which are respectively arranged on the support panel 114, and the furnace stages 120 overlap on the positive projection of the support panel 114, and the guide mechanism 130 is arranged one-to-one corresponding to the furnace stages 120 arranged on the same support panel 114.

[0049] Specifically, using the above method, when it is necessary to load the material rack 105 on the positioning fixture 147 onto the furnace 120, it is only necessary to align the walking fork 144 of the AGV forklift 140 with the guide mechanism 130 under the current furnace 120, and adjust the height of the lifting fork 146, so that the material rack 105 can be loaded on the bosses on different support panels 114 above the guide mechanism 130, which is beneficial to improve the utilization rate of the structure and thus improve the operating efficiency.

[0050] like Figure 2 As shown, the walking fork leg 144 includes a first fork leg 1442 matched with the first guide rod 132 and a second fork leg 1444 matched with the second guide rod 134 , and rollers 1446 are respectively provided on the first fork leg 1442 and the second fork leg 1444 .

[0051] Specifically, by adopting the above-mentioned method, when the AGV forklift 140 moves, the walking fork leg 144 contacts the ground, which is conducive to improving the stability of the AGV forklift 140 when moving, and the rollers 1446 are respectively arranged on the first fork leg 1442 and the second fork leg 1444, which is conducive to reducing friction and improving the smoothness of the AGV forklift 140 when moving. In addition, when loading the material 107, the first fork leg 1442 matched with the first guide rod 132 and the second fork leg 1444 matched with the second guide rod 134 are conducive to improving the positioning accuracy of the AGV forklift 140, so as to facilitate better loading of the material 107 by lifting the fork leg 146.

[0052] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications 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 material automatic loading system, characterized in that: The invention comprises a support frame, a furnace table and a guide mechanism arranged on the support frame, a first pin shaft and a second pin shaft are arranged on the furnace table at intervals, the automatic material loading system also comprises an AGV forklift, the AGV forklift comprises a body, and a walking fork foot and a lifting fork foot arranged on the body, a positioning fixture is arranged on the lifting fork foot, a photoelectric switch is arranged on the positioning fixture for detecting the posture of the material rack on the positioning fixture, wherein the material rack is used to carry materials and load them on the furnace table, the guide mechanism is used to guide the walking fork foot, through holes corresponding to the first pin shaft and the second pin shaft are arranged on the material rack respectively, when the deviation between the material rack and the furnace table is outside the allowable deviation range, the first pin shaft and / or the second pin shaft are abutted against the material rack, so that the material rack is tilted, at this time, the photoelectric switch of the positioning fixture is blocked by the material rack, so that the signal state of the photoelectric switch changes, and the AGV forklift can timely control the lifting fork foot to stop according to the change of the photoelectric switch state signal.

2. The material automatic loading system according to claim 1, characterized in that: The positioning fixture includes a first support arm and a second support arm arranged opposite to each other, the first support arm and the second support arm are fixedly connected by a connecting arm, and the photoelectric switches are respectively arranged on the first support arm and the second support arm so that the photoelectric switches are respectively directed to the space between the first support arm and the second support arm.

3. The material automatic loading system according to claim 2, characterized in that: The first supporting arm and the second supporting arm are respectively provided with mounting seats, the mounting seats are provided with heat-insulating transparent protective covers, and the photoelectric switch is located inside the heat-insulating transparent protective covers.

4. The material automatic loading system according to claim 1, characterized in that: The guide mechanism includes a first guide rod and a second guide rod arranged in parallel, the first guide rod and the second guide rod are fixedly connected by a connecting rod, and a plurality of accommodating cavities are respectively arranged on opposite sides of the first guide rod and the second guide rod, and a pulley assembly is arranged in the accommodating cavity.

5. The material automatic loading system according to claim 4, characterized in that: The pulley assembly includes a rotating shaft and a bearing arranged on the rotating shaft. The pulley assembly is connected to the first guide rod and the second guide rod respectively through the rotating shaft, and the outer ring of the bearing protrudes from the opposite sides of the first guide rod and the second guide rod.

6. The material automatic loading system according to claim 4 or 5, characterized in that: The first guiding rod and the second guiding rod are respectively provided with guiding surfaces on the opposite side surfaces of the inlet ends thereof.

7. The material automatic loading system according to any one of claims 1 to 5, characterized in that: The positioning fixture is welded and fixed to the lifting fork leg, and the positioning fixture is made of high temperature resistant material.

8. The material automatic loading system according to any one of claims 1 to 5, characterized in that: The support frame includes a plurality of columns arranged in parallel, the plurality of columns are connected by a plurality of support panels arranged in parallel, and the plane where the support panels are located is perpendicular to the straight line where the columns are located.

9. The material automatic loading system according to claim 8, characterized in that: The furnace platforms include a plurality of furnace platforms, which are respectively arranged on the support panel, and the furnace platforms overlap on the orthographic projection of the support panel, and the guide mechanism is arranged in a one-to-one correspondence with the furnace platforms arranged on the same support panel.

10. The material automatic loading system according to claim 4 or 5, characterized in that: The walking fork leg comprises a first fork leg matched with the first guide rod, and a second fork leg matched with the second guide rod, and rollers are respectively arranged on the first fork leg and the second fork leg.

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