Charging tray positioning structure and charging tray assembly

Abstract

The invention relates to a charging tray positioning structure and a charging tray assembly, and belongs to the technical field of motor assembly.The charging tray positioning structure comprises a positioning base, a positioning piece and a positioning base, and the positioning base is arranged below a charging tray and provided with a first matching structure; the positioning piece is provided with a first positioning structure and a second positioning structure, the first positioning structure is provided with a guide structure, and the first positioning structure and the first matching structure are matched for positioning; the positioning base is arranged on the support and provided with a second matching structure, and the second matching structure and the second positioning structure are positioned in a matched mode. According to the technical scheme, the motor production process can be simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motor assembly, and in particular to a material tray positioning structure and a material tray assembly. Background Art

[0002] Fasteners, as a highly standardized, serialized and universal mechanical part, are used in a wide range of industries. In the production and assembly of rail transit traction motors, many motor parts need to be connected with fasteners. As the traction motor production line gradually develops towards automation and intelligent operation, the production efficiency of traction motors will become higher and higher, and the amount of fasteners will also increase. Using a tray to load multiple fasteners at one time for traction motor assembly has become the mainstream method of current production lines.

[0003] During the assembly process of the motor, multiple types of fasteners are needed to connect the motor parts. Since the types of fasteners required for different types of motors vary greatly, the fasteners need to be changed according to the corresponding motor model during assembly. In the traditional operation mode, the fastener change mode is: manually remove the fasteners one by one, and then fill the various fasteners into the tray one by one according to the model. The fasteners on the tray are then taken by the clamping robot. The tray is fixed by bolts, cannot be moved, and has a fixed size. This feeding method has low operating efficiency, and the movements are single, repetitive and boring. As the motor assembly operation continues to develop towards intelligence, informatization, and automation, this traditional fastener feeding method obviously can no longer meet the needs of motor production lines for rapid response, rapid changeover, and efficient production. Summary of the invention

[0004] In response to the shortcomings of the prior art, the present application provides a material tray positioning structure and a material tray assembly, which provide more convenient feeding technical support for the rapid feeding of fasteners in motor production lines and are adaptable to material trays of various sizes.

[0005] To achieve the above-mentioned purpose, the present application provides a tray positioning structure, comprising: a positioning base, a positioning member and a positioning base, wherein: The positioning base is arranged below the material tray and has a first matching structure; The positioning member has a first positioning structure and a second positioning structure, the first positioning structure has a guide structure, and the first positioning structure cooperates with the first matching structure for positioning; The positioning base is arranged on the bracket and has a second matching structure, and the second matching structure cooperates with the second positioning structure for positioning.

[0006] Optionally, the first positioning structure is a pin body; the guide structure is arranged on the upper part of the pin body, and a transition surface is provided from the top to the bottom end, and the cross-sectional area of ​​the guide structure gradually increases from the top to the bottom end of the pin body, and increases to the bottom end The cross-sectional area is the same as the cross-sectional area of ​​the pin body.

[0007] Optionally, the transition surface is a transition inclined surface or a transition curved surface.

[0008] Optionally, the first matching structure is a cylindrical cavity, the diameter of the cylindrical cavity is greater than the diameter of the pin body, and the depth of the cylindrical cavity is greater than the height of the first positioning structure.

[0009] Optionally, the second positioning structure is a circular protrusion; the second matching structure is a circular groove, the diameter of the circular protrusion is smaller than the diameter of the circular groove, and the height of the circular protrusion is smaller than the height of the circular groove.

[0010] Optionally, an annular base is provided between the first positioning structure and the second positioning structure; the diameter of the annular base is greater than the diameter of the first matching structure, and the diameter of the annular base is greater than the diameter of the second matching structure.

[0011] Optionally, the tray positioning structure is made of carbon steel.

[0012] In addition, to achieve the above-mentioned purpose, the present application also provides a material tray assembly, having the material tray positioning structure as described above, as well as: a material tray, a material tray tray and a bracket, wherein the material tray tray carries the material tray, and the bracket carries the material tray tray.

[0013] Optionally, at least two positioning bases are provided on the bracket, and positioning pieces are fixed on the positioning bases according to the model of the material tray.

[0014] Optionally, the material tray is provided with at least two positioning bases.

[0015] The present application provides a material tray positioning structure and a material tray assembly, wherein the material tray positioning structure includes: a positioning base, a positioning member and a positioning base, wherein the positioning base is arranged below the material tray tray and has a first matching structure; the positioning member has a first positioning structure and a second positioning structure, the first positioning structure has a guide structure, and the first positioning structure cooperates with the first matching structure for positioning; the positioning base is arranged on a bracket and has a second matching structure, and the second matching structure cooperates with the second positioning structure for positioning.

[0016] During the assembly process of the motor, the existing method of feeding fasteners is to manually select the required fastener type according to the motor model and put it into the tray. The existing fastener tray is fixed by bolts and cannot be moved, lifted, stored in a three-dimensional warehouse, or transported. Manual fastener type change requires entering the production line, and the workstation that needs to change type needs to stop and wait, which indirectly reduces production efficiency.

[0017] The present application provides a tray positioning structure and a tray assembly, which can adapt to tray pallets of different sizes by designing a multi-level positioning structure, a guide structure, and a matching structure that matches the positioning structure on the tray assembly. It can achieve precise positioning of fastener trays in a motor production and assembly workstation, and can place the trays at specified positions on the brackets as needed, so that the trays can be lifted, moved, stored in a vertical warehouse, and transported as needed, so as to achieve rapid fastener changeover in the motor production and assembly workstation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a tray assembly of an embodiment of a tray positioning structure and a tray assembly of the present application; Figure 2 This is a schematic diagram of a tray positioning structure of an embodiment of a tray positioning structure and a tray assembly of the present application; Figure 3 This is a cross-sectional schematic diagram of a tray positioning structure of an embodiment of a tray positioning structure and a tray assembly of the present application; Figure 4 This is one of the schematic diagrams of the positioning member structure of an embodiment of the tray positioning structure and tray assembly of the present application; Figure 5 This is the second schematic diagram of the positioning member structure of the tray positioning structure and tray assembly of the present application; Figure 6 This is the third schematic diagram of the tray positioning structure of one embodiment of the tray positioning structure and tray assembly of the present application.

[0019] Reference numerals: Positioning base 1, positioning member 2, guide structure 201, pin body 202, circular protrusion 203, positioning base 3; Material tray 4, bracket 5, material tray 6, fastener material seat 7, fastener 8. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In the assembly process of the motor, the existing fastener feeding method is to manually select the required fastener type according to the motor model and put it into the material tray. The fastener material tray has multiple fastener material seats, and the fasteners are manually placed in the fastener material seats one by one according to the needs.

[0023] The existing fastener trays are fixed by bolts and cannot be moved, raised or lowered, stored in stereoscopic warehouses, or transported. Manual fastener changes require entering the production line, and the workstations that need to be changed need to stop and wait, which indirectly reduces production efficiency. As motor assembly operations continue to develop towards intelligence, informatization, and automation, this traditional fastener feeding method obviously can no longer meet the needs of motor production lines for rapid response, rapid changeover, and efficient production.

[0024] In order to improve the feeding efficiency of fasteners, in a first embodiment of a material tray positioning structure and a material tray assembly of the present application, a material tray positioning structure is provided, including: a positioning base 1, a positioning member 2 and a positioning base 3, wherein the positioning base 1 is arranged below the material tray 4 and has a first matching structure; the positioning member 2 has a first positioning structure and a second positioning structure, the first positioning structure has a guide structure 201, and the first positioning structure cooperates with the first matching structure for positioning; the positioning base 3 is arranged on the bracket 5 and has a second matching structure, and the second matching structure cooperates with the second positioning structure for positioning.

[0025] It should be noted that, refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a tray assembly of an embodiment of the tray positioning structure and tray assembly of the present application. The tray assembly mainly includes a tray 6, a tray tray 4 and a bracket 5. Figure 2 , the positioning base 1 is fixedly arranged below the material tray tray 4, and the positioning base 3 is fixedly arranged above the bracket 5. The positioning member 2 is fixed at the positioning base 3 of the corresponding positioning base 1 as required according to the model structure of the material tray tray 4. The positioning member 2 can also be fixed at the positioning base 3 of the corresponding positioning base 1 on the bracket 5 according to the location where the material tray tray 4 needs to be placed. The positioning member 2 is detachably connected to the positioning base 3. The guide structure 201 of the first positioning structure is a structure in which the top cross-sectional area is smaller than the bottom cross-sectional area. When the first matching structure is connected with the first positioning structure, the transition of the guide structure 201 can ensure the accurate connection between the first matching structure and the first positioning structure within the error range to prevent the connection from getting stuck.

[0026] For example, when the motor production line workstation needs to replace fasteners according to the motor model, transportation tools such as carrying carts and AGVs go to the fastener delivery port to take out the fastener tray 4 corresponding to the motor model, and transport it to the workstation, and place the tray on the bracket 5. A positioning piece 2 is fixed on the bracket 5 at a position corresponding to the tray 4, and the positioning base 1 is connected with the positioning piece 2.

[0027] In this embodiment, the tray assembly is provided with a tray positioning structure, and when placing the tray, the tray can be placed in the designated position of the bracket through the tray positioning structure, which can adapt to trays of various sizes, without the need for temporary manual loading, and improve the feeding efficiency of fasteners. The positioning member 2 can be connected to the bracket 5 at a suitable position according to the actual structure of the tray and the workstation layout, and the installation position is not restricted. The guide structure 201 improves the adaptability between the tray tray 4 and the bracket 5 without losing the positioning accuracy, and avoids jamming when placing the tray.

[0028] Furthermore, the first positioning structure is a pin body 202; the guide structure 201 is arranged on the upper part of the pin body 202, and a transition surface is provided from the top to the bottom. The cross-sectional area of ​​the guide structure 201 gradually increases from the top to the bottom of the pin body 202, and increases to the bottom end The cross-sectional area is the same as the cross-sectional area of ​​the pin body 202.

[0029] It should be noted that, refer to Figure 4 The upper part of the positioning member 2 is a first positioning structure, which is a cylindrical pin body 202, and a guide structure 201 as described above, which is arranged on the upper part of the pin body 202. The cross-sectional area of ​​the guide structure 201 is not greater than the cross-sectional area of ​​the pin body 202. The bottom end of the guide structure 201 is connected to the pin body 202, and the cross-sectional size is consistent. The guide structure 201 is processed from the top to the bottom through a transition surface, and the cross-sectional area gradually increases.

[0030] Furthermore, the transition surface is a transition inclined surface or a transition curved surface.

[0031] It should be noted that the transition surface of the guide structure 201 can be set as a transition inclined surface, and the inclined surface refers to a frustum surface or an inclined cut of a cylinder, such as Figure 4 A multi-stage truncated cone transition slope is set from the top to the bottom, and Figure 5 The cylindrical pin body 202 is subjected to a plurality of chamfering processes so that the cross-sectional area thereof gradually increases from the top to the bottom; the transition surface can also be set as a transition arc surface, such as Figure 6 As shown, the guide structure 201 has a smooth arc surface from the top to the bottom.

[0032] Further, the first matching structure is a cylindrical cavity, the diameter of the cylindrical cavity is greater than the diameter of the pin body 202, and the depth of the cylindrical cavity is greater than the height of the first positioning structure.

[0033] In this embodiment, refer to Figure 2 and Figure 3 The diameter of the cylindrical cavity of the first matching structure is larger than the diameter of the pin body 202. The cylindrical cavity and the pin body 202 are matched with each other through a small gap, so that the material tray tray 4 and the positioning member 2 can complete flexible and precise positioning, reducing the matching time between the material tray tray 4 and the positioning member 2 on the positioning base 3, thereby reducing the time for fastener replacement.

[0034] Furthermore, the second positioning structure is a circular protrusion 203; the second matching structure is a circular groove, the diameter of the circular protrusion 203 is smaller than the diameter of the circular groove, and the height of the circular protrusion 203 is smaller than the height of the circular groove.

[0035] In this embodiment, refer to Figure 2 and Figure 3 The circular protrusion 203 and the circular groove are matched with a small gap, which makes it easy for the positioning body to be installed on the positioning base 3. The installation position of the positioning body can also be adjusted according to the size of the material tray 4 and the workstation layout.

[0036] Furthermore, an annular base is provided between the first positioning structure and the second positioning structure; the diameter of the annular base is greater than the diameter of the first matching structure, and the diameter of the annular base is greater than the diameter of the second matching structure.

[0037] Reference Figures 2 to 6 A connecting hole may be provided on the annular base, and the positioning member 2 and the positioning base 3 may be connected by bolts or other fasteners 8 when they are installed.

[0038] Furthermore, the positioning structure of the material tray 6 is made of carbon steel.

[0039] In this embodiment, the first positioning structure of the positioning member 2 has a guide structure 201 and a transition surface, which facilitates the connection between the positioning base 1 and the positioning member 2. The positioning member 2 is easy to install and disassemble with respect to the positioning base 3, and can be replaced with spare parts at any time if there is any wear and tear.

[0040] In addition, an embodiment of the present application also proposes a material tray 6 assembly, having the material tray 6 positioning structure as described above, as well as: a material tray 6, a material tray tray 4 and a bracket 5, wherein the material tray tray 4 carries the material tray 6, and the bracket 5 carries the material tray tray 4.

[0041] Reference Figure 1, the material tray tray 4 is fixedly connected to the above-mentioned positioning base 1, the bracket 5 is fixedly connected to the above-mentioned positioning base 3, and the positioning member 2 is detachably connected to the bracket 5 through the positioning base 3. A fastener material seat 7 is provided on the material tray 6 for placing the fastener 8. The material tray 6 is fixed to the material tray tray 4 by a positioning pin or other connection method. One material tray tray 4 can carry multiple material trays 6 according to production requirements. The material tray tray 4 is a schematic diagram of the bearing structure of the fastener 8, fastener material seat 7, and material tray 6 that can be achieved in this application. The material tray tray 4 can be carried by transportation tools including but not limited to manual carrying carts, AGVs, etc., and placed on the bracket 5. In this embodiment, the material tray can be lifted, moved, and stored in a vertical warehouse, and transported and placed in a designated position as needed to achieve fast feeding and changing of fasteners in the motor production and assembly workstation.

[0042] It should be noted that the fasteners 8 include, but are not limited to, standard mechanical parts such as bolts, spring washers, flat washers, etc. The fasteners 8 can be placed in the fastener material holder 7 by an automatic loading mechanism, manual placement, or the like.

[0043] Furthermore, at least two positioning bases 3 are provided on the bracket 5 , and the positioning members 2 are fixed on the positioning bases 3 according to the model of the material tray 4 .

[0044] Furthermore, the material tray 4 is provided with at least two positioning bases 1 .

[0045] It should be noted that a plurality of positioning bases 3 can be provided on the bracket 5, and positioning members 2 can be installed on the corresponding positioning bases 3 according to the structure of the material tray 4 and the required placement position. The material tray tray 4 is provided with at least two positioning bases 1, and the positioning bases 1 are positioned and connected to the bracket 5 through the positioning members 2. In addition, other supporting structures can be provided on the material tray tray 4 to ensure that the material tray tray 4 can be stably placed on the bracket 5 when the positioning bases 1 are connected to the positioning members 2. In this embodiment, the material tray tray 4 is preferably provided with four positioning bases 1, and the bracket 5 is provided with four or more positioning bases 3.

[0046] Exemplarily, a method and process for quickly changing fasteners using a tray positioning structure and a tray assembly of the present application are as follows: S1. Put the fasteners of the matching machine into the material seat of the material tray, and the material tray with the material tray is automatically sent to the vertical warehouse for storage by the stacker; S2. When the workstation enters the motor assembly changeover, a fastener material request is sent to the vertical warehouse through the program. At this time, a transport vehicle such as a trolley or AGV goes to the workstation, lifts the tray containing the fasteners of the previous model, and transports it to the cargo entrance. The stacker places it in an empty cargo space in the vertical warehouse. S3, the stacker takes out the tray with the corresponding machine model fasteners stored on it and places it on the delivery port; S4, transport vehicles such as transport carts and AGVs go to the shipping port to take out the pallets, transport them to the workstation, and place the material trays on the brackets; S5. The barcode reader reads the pallet, reads the fastener material information stored in the pallet, and writes it into the line-side library to complete the fastener count reset; S6. The fastener change is completed and the workstation can continue to work.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tray positioning structure, characterized in that: include: Positioning base, positioning member and positioning base, wherein, The positioning base is arranged below the material tray and has a first matching structure; The positioning member has a first positioning structure and a second positioning structure, the first positioning structure has a guide structure, and the first positioning structure cooperates with the first matching structure for positioning; The positioning base is arranged on the bracket and has a second matching structure, and the second matching structure cooperates with the second positioning structure for positioning.

2. The tray positioning structure according to claim 1, characterized in that: The first positioning structure is a pin body; the guide structure is arranged on the upper part of the pin body, and a transition surface is provided from the top to the bottom. The cross-sectional area of ​​the guide structure gradually increases from the top to the bottom of the pin body, and increases to the bottom end The cross-sectional area is the same as the cross-sectional area of ​​the pin body.

3. The tray positioning structure according to claim 2, characterized in that: The transition surface is a transition inclined surface or a transition curved surface.

4. The tray positioning structure according to claim 3, characterized in that: The first matching structure is a cylindrical cavity, the diameter of which is greater than the diameter of the pin body, and the depth of which is greater than the height of the first positioning structure.

5. The tray positioning structure according to claim 1, characterized in that: The second positioning structure is a circular protrusion; the second matching structure is a circular groove, the diameter of the circular protrusion is smaller than the diameter of the circular groove, and the height of the circular protrusion is smaller than the height of the circular groove.

6. The tray positioning structure according to claim 1, characterized in that: An annular base is provided between the first positioning structure and the second positioning structure; the diameter of the annular base is greater than the diameter of the first matching structure, and the diameter of the annular base is greater than the diameter of the second matching structure.

7. The tray positioning structure according to any one of claims 1 to 6, characterized in that: The tray positioning structure is made of carbon steel.

8. A tray assembly, characterized in that: A material tray positioning structure as claimed in any one of claims 1 to 6, and: a material tray, a material tray tray and a bracket, wherein the material tray tray carries the material tray, and the bracket carries the material tray tray.

9. The tray assembly according to claim 8, characterized in that: At least two positioning bases are arranged on the bracket, and positioning pieces are fixed on the positioning bases according to the model of the material tray.

10. The tray assembly according to claim 8, characterized in that: The material tray is provided with at least two positioning bases.

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