Piston assembly tray

Abstract

The utility model discloses a piston assembly tray, and belongs to the technical field of piston transfer. The tray comprises a support which is provided with a rod cavity. The containing groove is provided with a through hole, the periphery of the through hole is provided with an annular step, the annular step is gradually tightened in the direction of the support, and the through hole is communicated with the rod cavity; the guide groove is communicated with the through hole, and the annular step is used for avoiding the guide groove; the containing parts are located on one sides of the containing grooves, and the number of the containing parts is the same as that of the containing grooves. The technical problem that different types of piston connecting rods are difficult to transfer at the same time through an existing tray is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston transportation, in particular to a piston assembly tray. Background Art

[0002] In the field of diesel engine manufacturing, the piston connecting rod assembly and the connecting rod cap are key components of the entire diesel engine. In order to ensure the transfer of workpieces between different workstations, a special pallet with strong practicality needs to be designed.

[0003] The pallet is used for the transfer of piston connecting rod assemblies and connecting rod bearing cap assembly lines, facilitating efficient transportation and operation during the production and assembly process.

[0004] Current diesel engines are usually produced on mixed lines during the production process, so different types of piston-connecting rod assemblies are used on the same production line. Multiple types of piston-connecting rod assemblies need to be transferred to the assembly line synchronously, but current assembly pallets can usually only transfer piston-connecting rod assemblies of the same type, which makes it difficult to meet the working requirements of mixed production lines. Utility Model Content

[0005] The main purpose of the utility model is to provide a piston assembly tray, which is intended to synchronously transport piston connecting rod assemblies of different models.

[0006] In order to achieve the above-mentioned purpose, the piston assembly tray proposed by the utility model comprises:

[0007] a stent having a rod cavity;

[0008] An accommodating groove, the accommodating groove has a through hole, the outer periphery of the through hole has an annular step, the annular step gradually tightens toward the bracket, and the through hole is connected to the rod cavity;

[0009] A guide groove, the guide groove is connected to the through hole, and the annular step forms a avoidance for the guide groove;

[0010] The accommodating portion is located at one side of the accommodating groove, and the number of the accommodating portion is the same as the number of the accommodating grooves.

[0011] Optionally, in an embodiment of the present invention, the accommodating portion includes a circular hole and a strip-shaped groove.

[0012] Optionally, in an embodiment of the present invention, a plurality of accommodating grooves are included, and adjacent accommodating grooves are staggeredly arranged.

[0013] Optionally, in an embodiment of the utility model, the inlet of the guide groove is provided with a chamfer, and / or,

[0014] The annular step is provided with a chamfer.

[0015] Optionally, in an embodiment of the utility model, the accommodating groove further includes a protective wall, the protective wall is arranged around the outer circumference of the annular step, the protective wall extends a predetermined distance in a direction away from the bracket, and the protective wall forms a avoidance for the guide groove.

[0016] Optionally, in an embodiment of the utility model, a chassis is further included, and the chassis is connected to the bracket.

[0017] Optionally, in an embodiment of the present invention, the chassis further includes a positioning block, and the positioning block is provided with a V-shaped groove.

[0018] Optionally, in an embodiment of the present invention, the chassis is connected to a plurality of rows of the brackets, a reinforcing plate is arranged on a side of the chassis away from the brackets, and a position of the reinforcing plate corresponds to a position of the brackets.

[0019] Optionally, in an embodiment of the present invention, the chassis is provided with a plurality of through slots, and the through slots are located at the periphery of the bracket.

[0020] Optionally, in an embodiment of the present invention, the bracket is composed of a hollow tube.

[0021] Compared with the prior art, the utility model can at least achieve the following beneficial effects. When the piston connecting rod and the connecting rod bearing cap are transported, the rod portion of the piston connecting rod is first placed in the guide groove. At this time, the rod portion is also located in the rod cavity, and the skirt portion of the piston is higher than the guide groove and the receiving groove. The piston connecting rod is moved along the guide groove in the direction of the receiving groove until the piston skirt portion is located above the receiving groove. At this time, the piston gradually falls until its skirt portion is supported by the annular step adapted thereto, and the bearing of the piston connecting rod is completed at this time. And because the piston is directly supported by the annular step in a vertical posture, it is also relatively easy to remove the piston, and there is no need to unlock the locking structure, etc. After the connecting rod bearing cap is matched with bolts to form an assembly, the connecting rod bearing cap is placed in the receiving portion to complete the bearing of the connecting rod bearing cap. By setting up an annular step, the accommodating groove can carry piston connecting rods of different sizes. When the pallet completes carrying multiple different types of piston connecting rods, they are transported to the assembly line synchronously, making it easier for assemblers or assembly machinery to complete the assembly of the engine, thereby solving the technical problem that the current piston pallet cannot complete the synchronous transportation of different types of pistons.

[0022] In addition, when the piston is placed in the tray, it is placed in a vertical posture, and impurity liquids such as engine oil in the piston will gradually flow out, flow to the annular step and gradually flow down along the annular step, and will not remain in the receiving groove, causing contamination to the piston that needs to be transported later. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a structural schematic diagram of an embodiment of a piston assembly tray of the utility model;

[0025] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0026] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0027] Figure 4 This is a top view of a piston assembly tray of the utility model;

[0028] Figure 5 The utility model is a structural schematic diagram of a reinforcing plate in a piston assembly tray.

[0029] Description of Figure Numbers:

[0030] 100, bracket; 110, rod cavity; 200, accommodating groove; 210, through hole; 220, annular step; 230, enclosure wall; 300, guide groove; 400, accommodating portion; 410, round hole; 420, strip groove; 500, chamfer; 600, chassis; 610, positioning block; 620, through groove; 630, reinforcement plate;

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0036] Reference Figure 1~Figure 5 The utility model provides a piston assembly tray, comprising:

[0037] The stent 100 has a rod cavity 110;

[0038] The accommodating groove 200 has a through hole 210. The outer periphery of the through hole 210 has an annular step 220. The annular step 220 gradually tightens toward the bracket 100. The through hole 210 is connected to the rod cavity 110.

[0039] The guide groove 300 is connected to the through hole 210, and the annular step 220 forms a avoidance for the guide groove 300;

[0040] The accommodating portion 400 is located at one side of the accommodating groove 200 , and the number of the accommodating portion 400 is the same as the number of the accommodating groove 200 .

[0041] When the piston connecting rod and connecting rod bearing cap are transported, the rod of the piston connecting rod is first placed in the guide groove 300. At this time, the rod is also located in the rod cavity 110. The skirt of the piston is higher than the guide groove 300 and the receiving groove 200. The piston connecting rod is moved along the guide groove 300 toward the receiving groove 200 until the piston skirt is located above the receiving groove 200. At this time, the piston gradually falls until its skirt is supported by the annular step 220 that matches it. At this time, the bearing of the piston connecting rod is completed. And because the piston is directly supported by the annular step in a vertical posture, it is also relatively easy to remove the piston without unlocking the locking structure. After the connecting rod bearing cap is matched with bolts to form an assembly, the connecting rod bearing cap is placed in the receiving portion 400 to complete the bearing of the connecting rod bearing cap. By providing an annular step 220, the accommodating groove 200 can carry piston connecting rods of different sizes. After the pallet completes carrying multiple different types of piston connecting rods, they are synchronously transported to the assembly line, making it easier for assemblers or assembly machinery to complete the assembly of the engine, thereby solving the technical problem that the current piston pallet cannot complete the synchronous transportation of different types of pistons.

[0042] In addition, when the piston is placed in the tray, it is placed in a vertical posture, and impurity liquids such as engine oil in the piston will gradually flow out, flow to the annular step 220 and gradually flow down along the annular step 220, and will not remain in the receiving groove 200, causing contamination to the piston that needs to be transported later.

[0043] In order to facilitate accurate entry of the connecting rod and the skirt of the piston, in the structure of a preferred embodiment, chamfers 500 are provided at the entrance of the guide groove 300 and the annular step 220 to guide the rod when it enters the guide groove 300 and the piston skirt when it falls into the annular step 220, so that the rod can accurately enter the guide groove 300 and the piston skirt can accurately fall into the corresponding annular step 220.

[0044] Specifically, the receiving portion 400 includes a circular hole 410 and a strip groove 420. After the connecting rod bearing cap and the bolt are matched to form an assembly, the two bolts of the connecting rod bearing cap assembly are respectively placed in the circular hole 410 and the strip groove 420 to complete the placement of the connecting rod bearing cap. Moreover, the receiving portions 400 are all located on the same side of the corresponding receiving groove 200, such as the left side, which can reduce the possibility of operators mismatching the piston connecting rod and the connecting rod bearing cap, reduce the operator's matching time, and improve assembly efficiency.

[0045] The pallet is provided with a plurality of receiving slots 200. In order to increase the carrying capacity of the pallet, adjacent receiving slots 200 are staggered. In the top view, the top of one receiving slot 200 is located below the middle of another receiving slot 200. In the direction in which the receiving slots 200 are arranged, the widest parts of adjacent receiving slots 200 are staggered, thereby reducing the space occupied by the plurality of receiving slots 200 and increasing the carrying capacity of the pallet.

[0046] In order to ensure the stability of the piston connecting rod during transportation, the accommodating groove 200 is provided with a protective wall 230. The protective wall 230 structure is arranged around the outer periphery of the annular step 220 to form a protective enclosure for the loaded piston connecting rod to prevent it from excessive shaking during transportation.

[0047] Furthermore, the tray structure also includes a chassis 600, which is connected to the bracket 100 and supports the bracket 100. The chassis 600 is provided with a positioning block 610, and the positioning block 610 is arranged in four pieces, which are symmetrically distributed on both sides of the chassis 600, and the positioning block 610 is provided with a V-shaped groove to cooperate with the limiting structure. When the tray is transported to the designated area, the limiting mechanisms on both sides of the tray work at the same time, and the motor drives the pulley connecting rod to advance, and the support rod follows until the pulley contacts the V-shaped groove. At this time, the pulley will only form a line contact with one side of the V-shaped groove. Since a ball bearing is provided on the tray base, it is in surface contact with the bottom surface of the tray, and the friction force is small. Therefore, under the continued action of the linear stepper motor, the pulley will slide into the inside of the V-shaped groove until it forms a line contact with both sides of the V-shaped groove, and the four pulleys are corrected at the same time, so the tray posture is also corrected to the designated position, completing the limiting operation, which is convenient for the subsequent robot arm to accurately position the processing parts.

[0048] Since the mass of the piston is relatively large, the mass of the pallet is also relatively large after the bracket 100 carries the piston. Whether it is mechanical or manual transportation, it is relatively laborious or the load on the machine is relatively large, which makes the transportation time longer and is not conducive to rapid production. For this reason, the tube structure constituting the bracket 100 is selected as a hollow tube, and a plurality of through grooves 620 are opened on the chassis 600 to reduce the mass of the pallet. In order to prevent the through grooves 620 from having a significant impact on the structural strength of the chassis 600 and failing to support the bracket 100, the through grooves 620 are selected to be set at the periphery of the bracket 100.

[0049] In a preferred embodiment, two brackets 100 are connected to the chassis 600, and each bracket 100 has six accommodating slots 200. When the pallet is fully loaded, it needs to carry twelve piston connecting rods and twelve connecting rod bearing covers matched therewith. The brackets 100 and the chassis 600 have to bear a larger load at this time. In order to prevent the chassis 600 from structural deformation due to overload, a reinforcing plate 630 is provided on one side of the chassis 600 at a corresponding position of the bracket 100 to improve the structural strength of the chassis 600.

[0050] In summary, the piston assembly pallet proposed in this solution can carry multiple pistons and different types of pistons, realize the synchronous transportation of multiple different types of pistons and the simultaneous transportation of the connecting rod bearing caps matched therewith. In addition, the pallet can also be adapted to mechanical transportation and can complete precise positioning in the corresponding working area, realize mechanized assembly, greatly liberate labor, and improve the automation and reliability of assembly line production.

[0051] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A piston assembly tray, characterized in that: include: A stent (100), wherein the stent (100) has a rod cavity (110); An accommodating groove (200), the accommodating groove (200) having a through hole (210), the outer periphery of the through hole (210) having an annular step (220), the annular step (220) gradually tightening toward the bracket (100), and the through hole (210) communicating with the rod cavity (110); A guide groove (300), the guide groove (300) being connected to the through hole (210), and the annular step (220) forming a avoidance for the guide groove (300); The accommodating portion (400) is located on one side of the accommodating groove (200), and the number of the accommodating portion (400) is the same as the number of the accommodating groove (200).

2. The piston assembly tray according to claim 1, characterized in that: The accommodating portion (400) comprises a circular hole (410) and a strip-shaped groove (420).

3. The piston assembly tray according to claim 1, characterized in that: It comprises a plurality of accommodating grooves (200), wherein adjacent accommodating grooves (200) are arranged in a staggered manner.

4. The piston assembly tray according to claim 1, characterized in that: The inlet of the guide groove (300) is provided with a chamfer (500), and / or, The annular step (220) is provided with a chamfer (500).

5. The piston assembly tray according to claim 1, characterized in that: The accommodating groove (200) further comprises a surrounding wall (230), the surrounding wall (230) being arranged around the outer periphery of the annular step (220), the surrounding wall (230) extending a predetermined distance in a direction away from the bracket (100), and the surrounding wall (230) forming a avoidance for the guide groove (300).

6. The piston assembly tray according to claim 1, characterized in that: It also includes a chassis (600), wherein the chassis (600) is connected to the bracket (100).

7. The piston assembly tray according to claim 6, characterized in that: The chassis (600) further comprises a positioning block (610), and the positioning block (610) is provided with a V-shaped groove.

8. The piston assembly tray according to claim 6, characterized in that: The chassis (600) is connected to a plurality of rows of the brackets (100); a reinforcing plate (630) is arranged on a side of the chassis (600) facing away from the brackets (100); and the position of the reinforcing plate (630) corresponds to the position of the brackets (100).

9. The piston assembly tray according to claim 6, characterized in that: The chassis (600) is provided with a plurality of through slots (620), and the through slots (620) are located at the periphery of the bracket (100).

10. The piston assembly tray according to claim 1, characterized in that: The support (100) is composed of a hollow tube.

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