US-12623866-B2 - Process equipment system of hydraulic oil circuit blocks and automated production line thereof

US12623866B2US 12623866 B2US12623866 B2US 12623866B2US-12623866-B2

Abstract

A process equipment system of hydraulic oil circuit blocks and an automated production line thereof, which relates to the field of mechanical processing technology. In view of the problem of low production efficiency in the positioning and processing of hydraulic oil circuit blocks, based on the six-point positioning principle, the workpiece is achieved the six-point positioning by the support components, positioning devices, and clamping devices on the upper layer of the base. The clamping device is capable to move along the chain, so as to adjust and change the clamping position, and can achieve processing five surfaces through one-time clamping of oil circuit blocks, improving positioning accuracy and processing efficiency, meeting the needs of automated production.

Inventors

Dewei Liu
Hanqi Fan
Junting LI
Changhe Li
Aiguo QIN
Yusuf Suleiman Dambatta
Xin Cui
Mingzheng LIU
Teng Gao
Zecheng ZHANG
Wenhao XU

Assignees

Qingdao university of technology
Qingdao Jimo Qingli Intelligent Manufacturing Industry Research Institute

Dates

Publication Date: 20260512
Application Date: 20240202
Priority Date: 20231103

Claims (10)

1 . A process equipment system of hydraulic oil circuit blocks, comprising: a base, wherein the base comprises an upper layer and a lower layer of the base arranged apart; a support component, wherein the support component is used to support a bottom surface of an oil circuit block; a positioning device, wherein there are two sets of the positioning devices, the sets of the positioning devices are arranged corresponding to a set of diagonal positions of the oil circuit block, and each set of the positioning devices is capable to simultaneously abut against two adjacent sides of the oil circuit block; a clamping device, wherein the clamping device comprises a hollow-square guide rail installed on the upper layer of the base, a slider installed on the guide rail, and a clamping mechanism installed on the slide rail; an outer side of the guide rail is matched with a hollow-square chain through tensioning wheels, the slide rail is provided with a motor, and an output end of the motor is engaged with the chain through a sprocket to drive the slider to slide along the guide rail and adjust a working position of the clamping mechanism.
2 . The process equipment system of hydraulic oil circuit blocks according to claim 1 , wherein the support component is arranged on the upper layer of the base, comprising at least three first support nails, and all tops of the first support nails are coplanar, serving as a bearing surface for common contact and bearing of the oil circuit block.
3 . The process equipment system of hydraulic oil circuit blocks according to claim 1 , wherein each set of the positioning devices comprises two sets of second support nails, each set of second support nails connected to a same telescopic mechanism through guide rods, the telescopic mechanism drives the second support nails to move back and forth relative to the upper layer of the base to switch contact states between the second support nails and the side of the oil circuit block.
4 . The process equipment system of hydraulic oil circuit blocks according to claim 3 , wherein each set of the second support nails comprises at least three second support nails, at least two second support nails in the same set are abutted against one side of the oil circuit block, and the other second support nails in the same set are abutted against the adjacent other side of the oil circuit block.
5 . The process equipment system of hydraulic oil circuit blocks according to claim 1 , wherein tensioning wheels are installed on the upper layer of the base outside corner positions of the guide rail, and the chain sequentially cooperates with the tensioning wheels to form an enclosed return structure.
6 . The process equipment system of hydraulic oil circuit blocks according to claim 1 , wherein the upper layer of the base is provided with brake blocks at edge positions of the guide rail, and the adjacent edge brake blocks of the guide rail serve as a sliding interval of one slider.
7 . The process equipment system of hydraulic oil circuit blocks according to claim 1 , wherein the clamping mechanism comprises a clamp and a cylinder, the clamp is installed on the slider through a shaft to form a lever structure, and the cylinder is rotationally connected to one end of the slider, while the other end forms a pressing part in contact with a top surface of the oil circuit block.
8 . The process equipment system of hydraulic oil circuit blocks according to claim 7 , wherein the clamping mechanism is provided with two sets, and the two sets of clamping mechanisms are installed on one set of opposite sides of the hollow-square guide rail.
9 . An automated production line of hydraulic circuit blocks utilizing the hydraulic circuit block process equipment system according to claim 1 , comprising an oil circuit block loading and unloading system, a robot, and machining centers; two of the machining centers are placed opposite each other, the robot is fixedly installed in a middle for loading and unloading, the machining centers and the robot form a machining area, and the oil circuit block loading and unloading system is arranged adjacent to the machining area.
10 . The automated production line of hydraulic circuit blocks according to claim 9 , wherein the oil circuit block loading and unloading system comprises an loading and unloading platform and stacking devices; the loading and unloading platform is provided with a loading position, an unloading position, and a material rack placement platform located between the loading position and the unloading position; the two stacking devices are respectively connected to the material platforms through conveyor devices, and each conveyor device is provided with loading and unloading robots; wherein the conveying device transports the material racks to the stacking devices or takes out the material racks from the stacking devices, and the stacking devices drive the material racks after insertion and stacking to move, so as to release the material racks or stack the material racks.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202311459022.X with a filing date of Nov. 3, 2023. The content of the aforementioned application, including any intervening amendments thereto, is incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to the field of mechanical processing technology, in particular to a process equipment system of hydraulic oil circuit blocks and an automated production line thereof. BACKGROUND Oil circuit blocks are essential components in hydraulic systems, and their machining accuracy determines the stable operation of the hydraulic system. Oil circuit block blanks are mostly square regular parts with simple machining processes. At present, the production and processing of oil circuit blocks are mostly carried out by manually operated machine tools, using simple positioning and clamping methods, and multiple positioning and clamping are required in one processing, which leads to poor machining accuracy of oil circuit blocks. Due to insufficient surface accuracy and large roundness errors in oil circuit holes, the yield rate is low. Therefore, it is imperative to achieve automated production of oil circuit blocks with high-precision positioning and processing. The Chinese patent (public number: CN113953542B) discloses an automotive hub process equipment system and an intelligent clean and precision machining production line, mainly used for flexible production of disc parts such as hubs, and not suitable for square parts such as oil circuit blocks. The Chinese patent (public number: CN103434848B) discloses a brick stacking device, which uses a buffering device to buffer the impact force of the slider generated when the steam curing vehicle collides with the locator, it can effectively alleviate the impact force on the cylinder and extend the service life of the cylinder. However, the stacking device operates independently and requires additional loading and unloading devices, which increases additional equipment costs. The Chinese patent application (public number: CN110805586A) discloses a hydraulic oil circuit block positioning and fixing device, which can adjust the position of the oil circuit block. However, it is only suitable for the installation environment of hydraulic oil circuit blocks and cannot be adapted to the production and processing of oil circuit blocks, it cannot be used as positioning and processing equipment in the production and processing process. The Chinese patent (public number: CN213052838U) discloses a positioning mechanism for drilling hydraulic oil circuit blocks, which solves the technical difficulties of positioning and adjusting during the drilling process of oil circuit blocks by setting a turntable, a locking mechanism, an auxiliary positioning mechanism, a first shaft rod, and an irregular groove. However, it can only be applied in the field of oil circuit block drilling, and the fixture needs to be replaced when milling the surface of oil circuit blocks, which is difficult to meet the demand for multiple processing methods for oil circuit blocks in flexible machining processes. In summary, the existing oil circuit block processing and production have technical bottlenecks of low efficiency and insufficient positioning and processing accuracy, and known technologies cannot achieve automated production of oil circuit blocks, and it is difficult to meet the processing efficiency and accuracy requirements of oil circuit blocks. SUMMARY The objective of the present disclosure is to provide a process equipment system of hydraulic oil circuit blocks and an automated production line thereof that addresses the deficiency of existing technology. Based on the six-point positioning principle, the workpiece is achieved six-point positioning by a support component, a positioning device, and a clamping device on the upper layer of the base. The clamping device is capable to move along the chain, so as to adjust and change the clamping position, and achieve the processing of five surfaces through one-time clamping of the oil circuit block, which improves positioning accuracy and processing efficiency, and meets the needs of automated production. The first objective of the present disclosure is to provide a process equipment system of hydraulic oil circuit blocks, adopting the following solution: A process equipment system of hydraulic oil circuit blocks, including: a base, wherein the base includes an upper layer and a lower layer of the base arranged apart;a support component, wherein the support component is used to support a bottom surface of an oil circuit block;a positioning device, wherein there are two sets of the positioning devices, the sets of the positioning devices are arranged corresponding to a set of diagonal positions of the oil circuit block, and each set of the positioning devices is capable to simultaneously abut against two adjacent sides of the oil c