Flexible manufacturing unit with automatic tray feeding module

Abstract

The utility model belongs to the field of flexible manufacturing units, and relates to a flexible manufacturing unit with an automatic tray feeding module, which consists of a precise carving high-speed machining center 1, a combined section manipulator carrying device 2, a tail end gripping device 3, a rotary tray exchange device 4 and a protective cover 5. Wherein after the rotary tray exchange device 4 receives a feeding signal of the fine carving high-speed machining center 1, a tray 35 with a target workpiece moves to a feeding position, after a material level detection sensor 45 detects the tray 35, an air cylinder positioning device 44 positions a rotary disc 47, and the combined mechanical arm carrying device 2 drives the tail end grabbing device 3 to grab the tray; automation of feeding, discharging and machining is achieved, and the machining precision and efficiency are improved. The tray ensures the convenience of product change, can meet the matching control between a target workpiece on the tray and a machining program, realizes flexible production, and is suitable for producing and machining multiple types of parts in small and medium batches.

Description

Technical Field

[0001] This utility model patent belongs to the field of flexible manufacturing units, specifically a flexible manufacturing unit with a tray automatic loading module to solve the problem of multi-variety, small and medium-sized batch parts production. Background Art

[0002] In recent years, driven by the global trend of "intelligent manufacturing," we have increasingly demanded higher performance and functionality from our products, significantly shortening product replacement cycles and increasing complexity. Traditional processing lines, due to their single processing methods, high resource consumption, and high investment costs, are no longer able to meet the demands of emerging markets. Flexible manufacturing cells (FMCs), adapted to these needs, have gained widespread adoption. FMCs organically integrate material storage, automated feeding, and machining centers through computerized information control systems. These cells can adapt promptly to changing manufacturing tasks and production environments, addressing the shortcomings of traditional processing and production models. They are suitable for the production of a wide variety of small and medium-sized parts batches, accelerating product replacements and meeting the urgent needs of the market.

[0003] In existing technologies, material circulation is usually completed using an automatic feeding unit composed of six-axis robots. The main disadvantages are that the types of processed products are limited, the replacement and verification cycle of the robot's end gripper and fixture is very long, the target workpiece needs to be manually placed in the robot grasping the material position for secondary positioning, the operator participation is high, and point teaching is troublesome.

[0004] Chinese patent CN 208034220 U proposes a pallet exchange mechanism suitable for flexible manufacturing cells. This mechanism uses a robotic arm on a ring-shaped support to automatically load and unload materials between a fixed pallet and a machining center, improving processing efficiency. However, the robotic arm's structure cannot meet the requirements of large loads and long travels. Vertical movement at the end of the robotic arm is achieved hydraulically, which limits its range and increases the cost of the hydraulic system. Utility Model Content

[0005] The purpose of the utility model is to provide a flexible manufacturing unit with an automatic tray loading module to solve the problem of producing multiple varieties and small and medium batch parts.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model discloses a flexible manufacturing unit with an automatic pallet loading module, comprising a high-speed precision machining center 1, a combined manipulator handling device 2, an end gripping device 3, a rotary pallet exchange device 4 and a protective cover 5. The rotary pallet exchange device 4 is directly arranged on the ground through a foot assembly. Various material levels are evenly distributed along the circumference of the rotary pallet exchange device 4. Driven by the rotating shaft, it rotates along the C axis. Each material level rotates to the loading position according to the instruction requirements. A cylinder positioning device 44 is provided below the loading position. The combined manipulator handling device 2 is fixedly connected to the base 41 of the rotary pallet exchange device 4 through a frame 21. The combined manipulator handling device 2 is fixedly connected to the base 41 of the rotary pallet exchange device 4 through a frame 21. Device 2 can realize Z-axis linear motion and X-axis linear motion. The forearm 31 and the secondary arm 211 of the end gripping device 3 are fixedly connected. The protective cover 5 is fixedly connected to the base 41 of the rotary pallet exchange device 4 and the frame 21 of the combined manipulator handling device 2. The protective cover 5 and the combined manipulator handling device 2, the end gripping device 3, and the rotary pallet exchange device 4 form a flexible manufacturing unit. The precision carving high-speed machining center 1 is arranged on the side of the flexible manufacturing unit. The flexible manufacturing unit described in the utility model uses a pallet 35 as a workpiece carrier. The combined manipulator handling device 2 and the end gripping device 3 cooperate to realize the flow of the pallet between the flexible manufacturing unit and the precision carving high-speed machining center 1.

[0008] Furthermore, in the combined manipulator handling device 2, the second servo motor 26 drives the adapter 25 to move on the first guide rail 22 through the first rack 23, thereby realizing the vertical lifting movement of the combined manipulator handling device 2 along the Z direction. Furthermore, the first servo motor 24 installed on the adapter 25 drives the first-level arm 210 to move on the second guide rail 29 through the second rack 28, and the first-level arm 210 drives the second-level arm 211 to move through the synchronous belt 27, thereby realizing the movement of the combined manipulator handling device 2 along the X direction. This two-way telescopic structure can expand the movement range.

[0009] Furthermore, in the end gripping device 3, the forearm 31 and the secondary arm 211 are connected by screws, the forearm 31 and the gripping claw 32 are connected by screws, and the positioning shaft 33 in the gripping claw 32 and the pallet positioning block 34 on the pallet 35 are matched through conical surfaces to meet the requirements of large load use.

[0010] Furthermore, in the rotary pallet exchange device 4, the third servo motor 410 drives the rotary drive 49 through the reducer 411 to realize rotational motion. Furthermore, the rotary drive 49 is connected to the rotating disk 47 by screws, driving the pallet 35 on the rotating disk 47 to move to the loading position. After the material level detection sensor 45 detects the pallet 35, the cylinder positioning device 44 positions the pallet 35 to ensure the accurate position of the loading position pallet.

[0011] Furthermore, the protective cover (5) is composed of an outer protective sheet metal (53), an arc sheet metal (58), a fixed arc door (54), and a moving arc door (55). The bottom surface of the outer protective sheet metal (53) is fixedly connected to the base (41), the side of the outer protective sheet metal (53) is fixedly connected to the frame (21), and the moving arc door (55) is opened and closed by a rotating shaft and a bottom guide rail.

[0012] Furthermore, the protective cover 5 also includes a water receiving component 57 and an internal protective sheet metal 56, which can meet the flushing needs inside the flexible manufacturing unit. The water receiving component 57 is installed below the rotating pallet exchange device 4, and can collect the cutting fluid and flushing fluid dripping on the material level and discharge them through the water pipe. The internal protective sheet metal 56 adopts a slope design, and the flushing fluid will not cause damage to the internal structure during flushing. At the same time, it can play a role in diversion to ensure that the flushing fluid can flow into the water receiving component.

[0013] Compared with the existing technology, the present invention has the following technical effects:

[0014] (A) The flexible manufacturing unit with a standard pallet automatic loading module in this utility model can realize automatic loading and unloading and processing automation, solving the problems of inconvenience in changing production and troublesome teaching when directly grabbing workpieces for loading and unloading in the traditional way, and achieving the goal of flexible production of multiple varieties and small and medium batches of parts;

[0015] (B) The first-stage arm of this new combined manipulator handling device drives the second-stage arm via a synchronous belt, which can increase the end manipulator's travel and expand the material grabbing range. At the same time, the Z-axis and X-axis telescopic arms of the combined manipulator handling device use rack transmission, which has a fast movement speed, a large load-bearing capacity, a compact structure, and a stable and reliable operation process.

[0016] (C) The gripper in the end gripping device achieves rapid positioning and clamping through the tapered surface fit. It has a simple and compact structure and is suitable for gripping workpieces with large loads.

[0017] (D) The rotating pallet exchange device realizes material storage. This structure occupies a small area, reduces the movement space of the manipulator, and adopts a rotary drive transmission and support method to ensure the carrying capacity of the silo and better meet actual needs. The silo is positioned by cylinder drive to ensure the accurate position of the pallet movement in the silo;

[0018] (E) The bevel design of the water receiving assembly inside the protective cover and the internal protective sheet metal makes it easy to use an air gun and cutting fluid to clean and flush the target workpiece;

[0019] (F) The solution of this utility model has a simple structure, is easy to implement, and is convenient to carry, and can meet the urgent demand for flexible manufacturing units in the automation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the combined manipulator handling device of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the end gripping device of the present utility model;

[0023] Figure 4 This is a schematic diagram of the rotary pallet exchange structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the protective cover structure of the utility model;

[0025] Among them, 1-precision carving high-speed machining center, 2-combined manipulator handling device, 3-end gripping device, 4-rotating pallet exchange device, 5-protective cover, 21-frame, 22-first guide rail, 23-first rack, 24-first servo motor, 25-adapter, 26-second servo motor, 27-synchronous belt, 28-second rack, 29-second guide rail, 210-first arm, 211-secondary arm, 31-forearm, 32-grip, 33-positioning axis, 34-pallet positioning block , 35-tray, 41-base, 42-wire trough, 43-support seat, 44-cylinder positioning device, 45-material level detection sensor, 46-positioning column, 47-rotating disk, 48-support column, 49-rotation drive, 410-third servo motor, 411-reducer, 51-pneumatic box, 52-touch screen operation panel, 53-external protection sheet metal, 54-fixed arc door, 55-moving arc door, 56-internal protection sheet metal, 57-water receiving assembly, 58-arc sheet metal. DETAILED DESCRIPTION

[0026] The present invention is described in further detail below with reference to the accompanying drawings:

[0027] The utility model provides a flexible manufacturing unit with an automatic tray loading module, such as Figure 1 As shown, it includes a precision carving high-speed machining center 1, a combined robot handling device 2, an end gripping device 3, a rotary pallet exchange device 4 and a protective cover 5.

[0028] The rotary pallet exchange device 4 is directly arranged on the ground through the anchor assembly, the frame 21 is fixed on the base 41, the forearm 31 of the end gripping device 3 and the secondary arm 211 of the combined manipulator handling device 2 are fixedly connected, the protective cover 5 is fixedly connected to the frame 21 and the base 41, and the precision carving high-speed machining center 1 is arranged on the side of the automatic feeding unit.

[0029] Combined manipulator handling device 2 Figure 2 As shown, it consists of a frame 21, a first guide rail 22, a first rack 23, a first servo motor 24, an adapter 25, a second servo motor 26, a synchronous belt 27, a second rack 28, a second guide rail 29, a primary arm 210 and a secondary arm 211. The combined manipulator handling device 2 is fixedly connected to the base 41 of the rotary pallet exchange device 4 through the frame 21. The combined manipulator handling device 2 can achieve Z-axis linear motion and X-axis linear motion. In the X direction, the first servo motor 24 drives the primary arm 210 to perform linear motion on the second guide rail 29 through the second rack 28. Furthermore, the primary arm 210 drives the secondary arm 211 to move in the X direction through the synchronous belt 27, realizing two-stage combined telescopic movement and widening the manipulator travel; the primary arm 210 is connected to the adapter 25 through screws. Furthermore, the second servo motor 26 drives the adapter 25 to move on the first guide rail 22 through the first rack 23 to achieve movement in the Z direction.

[0030] End gripping device 3 Figure 3 As shown, it consists of a forearm 31, a gripper 32, a positioning shaft 33, a tray positioning block 34, and a tray 35. The forearm 31 is fixedly connected to the secondary arm 211 and the gripper 32. The positioning shaft 33 of the gripper 32 and the tray positioning block 34 on the tray 35 cooperate with each other through conical surfaces to achieve gripping and releasing of the tray 35, meeting the requirements of heavy load use.

[0031] Rotating pallet exchange device 4 as Figure 4 As shown, it consists of a base 41, a wire trough 42, a support base 43, a cylinder positioning device 44, a material level detection sensor 45, a tray 35, a positioning column 46, a rotating disk 47, a support column 48, a rotary drive 49, a third servo motor 410 and a reducer 412. The third servo motor 410 in the rotating tray exchange device drives the rotary drive 49 to rotate through the reducer 411. Furthermore, the rotary drive 49 is connected to the rotating disk 47 by screws, driving the tray 35 on the rotating disk 47 to move to the upper material position. The tray 35 is fixed to the rotating disk 47 by the positioning column 46 and the support column 48. After the material level detection sensor 45 detects the tray 35, the cylinder positioning device 44 positions the rotating disk 47, waiting for the combined robot handling device to grab it.

[0032] Protective cover 5 Figure 5As shown, the protective cover 5 mainly includes an outer protective sheet metal 53, a fixed arc door 54, a movable arc door 55, an inner protective sheet metal 56, a water receiving assembly 57, and an arc sheet metal 58. The external protection of the combined manipulator handling device 2 and the rotary pallet exchange device 4 is mainly composed of the outer protective sheet metal 53, the arc sheet metal 58, the fixed arc door 54, and the movable arc door 55 in the protective cover portion 5. The opening and closing of the movable arc door ensures sufficient loading space. The inner protective sheet metal 56 and the water receiving assembly 57 adopt a fully sealed design to facilitate flushing and cleaning with cutting fluid.

[0033] The utility model provides a flexible manufacturing unit with an automatic tray loading module, which also includes a pneumatic box 51 and a touch screen 52. The pneumatic box 51 and the touch screen 52 are installed on the outside of the shield part 5 to realize the operation control of the flexible manufacturing unit.

[0034] The working process of this utility model is as follows:

[0035] A flexible manufacturing unit with an automatic tray loading module, whose working mode includes necessary manual operation and automatic loading and unloading actions.

[0036] Step 1: Production preparation: The operator enters the processing information of the workpiece to be processed into the automation management software and places the workpiece to be processed in the corresponding material position of the rotary pallet exchange device 4 in order according to the production sequence.

[0037] Step 2: Automatic loading, the precision carving high-speed machining center 1 sends a loading signal, the automatic door of the precision carving high-speed machining center 1 opens, and the pallet 35 with the target workpiece in the rotary pallet exchange device 4 moves to the loading position. After the material level detection sensor 45 detects the pallet 35, the cylinder positioning device 44 positions the rotary disk 47. After the cylinder positioning is completed, the combined manipulator transport device 2 drives the end grasping device 3 to grasp the pallet 35 with the target workpiece and moves it to the processing position inside the precision carving high-speed machining center 1 to realize the loading operation; after the loading is completed, the combined manipulator transport device returns, the automatic door of the precision carving high-speed machining center 1 closes, and the target part is processed.

[0038] Step 3: Automatic processing. The Jingdiao high-speed machining center 1 calls the corresponding machining program to automatically process the target workpiece, and the automated management software monitors the status and data of the flexible manufacturing system in real time.

[0039] Step 4: Automatic unloading or material exchange. After the target workpiece is machined, the precision high-speed machining center 1 sends an unloading signal, and the machine's automatic door opens. The combined robotic transport device 2 drives the end-gripper 3 to grab the pallet 35 carrying the completed workpiece from the precision high-speed machining center 1, move it to the loading position of the rotary pallet exchanger 4, and place the pallet there. The combined robotic transport device 2 then returns to a safe position. After the material level sensor 45 detects pallet 35, the cylinder positioning device 44 retracts, and the pallet rotary device 4 rotates to replace the next pallet carrying the target workpiece, continuing the loading and unloading cycle.

Claims

1. A flexible manufacturing unit with a tray automatic loading module, characterized in that: The invention comprises a high-speed precision machining center (1), a combined manipulator handling device (2), an end gripping device (3), a rotary pallet exchange device (4) and a protective cover (5); the rotary pallet exchange device (4) is directly arranged on the ground through a foot assembly, and various material positions are evenly distributed along the circumference of the rotary pallet exchange device (4). Under the drive of the rotary shaft, the rotary pallet exchange device (4) rotates along the C axis, and each material position rotates to the upper material position according to the instruction requirements, and a cylinder positioning device (44) is arranged below the upper material position; the combined manipulator handling device (2) is fixedly connected to the base (41) of the rotary pallet exchange device (4) through a frame (21), and the combined manipulator handling device (2) can realize Z-axis linear motion and X-axis linear motion. movement; the end gripping device (3) is fixedly connected to the combined manipulator handling device (2); the protective cover (5) is fixedly connected to the base (41) of the rotary pallet exchange device (4) and the frame (21) of the combined manipulator handling device (2); the protective cover (5) and the combined manipulator handling device (2), the end gripping device (3), and the rotary pallet exchange device (4) form a flexible manufacturing unit; the high-speed precision machining center (1) is arranged on the side of the flexible manufacturing unit, the flexible manufacturing unit uses the pallet (35) as a workpiece carrier, and the combined manipulator handling device (2) and the end gripping device (3) cooperate to realize the circulation of the pallet (35) between the flexible manufacturing unit and the high-speed precision machining center (1).

2. A flexible manufacturing unit with a tray automatic loading module according to claim 1, characterized in that: In the combined manipulator handling device (2), the second servo motor (26) drives the adapter seat (25) to move on the first guide rail (22) via the first rack (23), thereby realizing vertical lifting movement of the combined manipulator handling device (2) along the Z direction; the first servo motor (24) installed on the adapter seat (25) drives the primary arm (210) to move on the second guide rail (29) via the second rack (28), and the primary arm (210) drives the secondary arm (211) to move via the synchronous belt (27), thereby realizing movement of the combined manipulator handling device (2) in the X direction.

3. A flexible manufacturing unit with a tray automatic loading module according to claim 1, characterized in that: In the end gripping device (3), the forearm (31) and the secondary arm (211) are connected by screws, the forearm (31) and the gripping claw (32) are connected by screws, and the positioning shaft (33) of the gripping claw (32) and the tray positioning block (34) on the tray (35) are matched with conical surfaces.

4. A flexible manufacturing unit with a tray automatic loading module according to claim 1, characterized in that: In the rotary pallet exchange device (4), the third servo motor (410) drives the rotary drive (49) to rotate via the reducer (411); the rotary drive (49) is connected to the rotary disk (47) via screws, and drives the pallet (35) on the rotary disk (47) to move to the loading position; after the material level detection sensor (45) detects the pallet (35), the cylinder positioning device (44) positions the pallet (35) to ensure the accuracy of the loading position.

5. The flexible manufacturing unit with a tray automatic loading module according to claim 1, characterized in that: The protective cover (5) is composed of an outer protective sheet metal (53), an arc sheet metal (58), a fixed arc door (54), and a movable arc door (55); the bottom surface of the outer protective sheet metal (53) is fixedly connected to the base (41); the side of the outer protective sheet metal (53) is fixedly connected to the frame (21); and the movable arc door (55) is opened and closed by a rotating shaft and a bottom guide rail.

6. A flexible manufacturing unit with a tray automatic loading module according to claim 1, characterized in that: The protective cover (5) further comprises a water receiving assembly (57) and an internal protective sheet metal (56), which can meet the flushing requirements inside the flexible manufacturing unit; wherein the water receiving assembly (57) is installed below the rotary pallet exchange device (4), and can collect the cutting fluid and flushing fluid dripping on the material level and discharge them through the water guide pipe; the internal protective sheet metal (56) adopts a slope design, so that the flushing fluid will not cause damage to the internal structure during flushing, and can also play a role in guiding flow, ensuring that the flushing fluid can flow into the water receiving assembly.

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