An inverted lathe material line consignment mechanism

Abstract

The present invention relates to an inverted lathe material line conveying mechanism, which has the following structure: connected to a translation plate via sliders on two parallel guide rails, a translation drive device is provided on the end side of the translation plate; a swing cylinder is connected to the middle position of the lower surface of the translation plate, the bottom of the swing shaft passes through the translation plate and is connected to the swing cylinder via a key; a top plate is connected to the top of the swing shaft, and a positioning tray seat is provided at each end of the top plate, a positioning tray is connected to the positioning tray seat via an axial adjustment device, and a radial adjustment device is provided at the center of the positioning tray, the outer circumference of the radial adjustment device limits the bottom inner hole of the workpiece; three support tubes are evenly arranged on the circumference of the upper surface of the positioning tray, and the support tubes support the outer edge bottom surface of the workpiece. The inverted lathe material line conveying mechanism can not only smoothly transfer disc-type parts for rough processing and fine processing, but also has the function of performing high-precision centering adjustment on the radial and axial directions of the workpiece in the chuck, which can improve the degree of automation and processing accuracy.

Description

Technical Field

[0001] The invention relates to an inverted lathe material line conveying mechanism, belonging to the technical field of CNC machine tool components. Background Art

[0002] With the development of the machinery manufacturing industry, highly automated and efficient processing methods are becoming increasingly popular. However, the method of using a robotic arm to directly grasp workpieces for the machine tool chuck is gradually being replaced by assembly line operations due to its low efficiency. Material lines configured for automated equipment are increasingly being used in the machine tool field. Inverted lathes require a spindle chuck to grasp workpieces. Enabling these machines to efficiently grasp workpieces and accurately position them in the chuck is a key challenge facing mechanical technicians. The traditional method places the workpiece on a fixed base in the material line. In this case, when the chuck grasps the workpiece, the workpiece cannot be centered longitudinally or axially with the machine tool chuck. This places excessive demands on the workpiece's positioning accuracy and the robot's motion precision, and the positioning base requires frequent replacement, which is costly and affects processing efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an inverted lathe material line conveying mechanism, which can not only smoothly transfer rough-processed and fine-processed disc parts, but also has the function of high-precision centering adjustment of the workpiece in the radial and axial directions in the chuck, thereby improving the degree of automation and processing accuracy.

[0004] In order to solve the above problems, the specific technical solutions created by the present invention are as follows: an inverted lathe material line conveying mechanism, which is connected to the translation plate through sliders on two parallel guide rails, and a translation drive device is provided on the end side of the translation plate; a swing cylinder is connected to the middle position of the lower surface of the translation plate, and the bottom of the swing shaft passes through the translation plate and is connected to the swing cylinder through a key; a top plate is connected to the top of the swing shaft, and a positioning pallet seat is provided at both ends of the top plate, and a positioning pallet is connected to the positioning pallet seat through an axial adjustment device, and a radial adjustment device is provided in the center of the positioning pallet, and the outer circumference of the radial adjustment device limits the bottom inner hole of the workpiece; three support tubes are evenly arranged on the circumference of the upper surface of the positioning pallet, and the support tubes support the outer edge bottom surface of the workpiece.

[0005] The structure of the axial adjustment device includes: the upper surface of the positioning tray seat is a circular box-shaped structure, the lower surface of the positioning tray is a cylindrical structure, and the cylindrical structure of the positioning tray is coaxially gap-matched with the circular box-shaped structure of the positioning tray seat, and a number of support springs are arranged on the inner circumference of the circular box-shaped structure, the bottom surface of the support spring is supported on the positioning tray seat, and the top surface of the support spring is supported on the lower surface of the positioning tray; a number of screws are threadedly connected on the positioning tray, and the screws pass through the lower surface of the positioning tray and are coaxially matched with the support springs at the corresponding positions.

[0006] A through hole is provided in the center of the top plate, and a circular positioning surface with a diameter larger than the through hole is provided on the upper surface. The small diameter shaft at the lower end of the positioning tray seat is coaxially matched with the through hole in the center of the top plate, and the circular box-shaped structure at the lower end of the positioning tray seat is seated on the circular positioning surface of the top plate.

[0007] The radial adjustment device structure includes: an inner circle positioning column is provided at the center of the upper surface of the positioning tray, and the inner circle positioning column is clearance-matched with the inner hole of the workpiece; a plurality of pin holes are evenly distributed radially on the outer circumference of the inner circle positioning column, the ball pin is coaxially matched with the pin hole, a groove is provided on the inner end surface of the ball pin, an adjustment spring is provided in the groove, the adjustment spring is supported on the inner circle positioning column, the outer end portion of the ball pin is hemispherical, and the spherical surface contacts the inner wall of the hole of the workpiece; an axial long groove is provided on the outer circumference of the ball pin, and a pin is provided on the top surface of the inner circle positioning column, and the lower end of the pin is located in the long groove of the ball pin.

[0008] The bottom of the support tube passes through the positioning tray and is threadedly connected to the nut; and a nylon plug is connected to the top of the support tube.

[0009] The upper end of the swing shaft is connected to the top plate through a boss, and the thrust bearing is connected at the boss. The upper side of the outer ring of the thrust bearing is limited by the lower surface of the swing shaft boss, and the lower side of the outer ring of the thrust bearing is limited by the upper surface of the translation plate.

[0010] An annular bearing retaining ring is provided on the upper surface of the translation plate, and the bearing retaining ring is located on the outer circumference of the thrust bearing.

[0011] Two sensing blocks are arranged on the top plate, and the sensing blocks are respectively close to the two positioning tray seats.

[0012] The present invention provides the following beneficial effects: it enables a machine tool to automatically grasp workpieces undergoing multiple processes, including roughing, semi-finishing, and finishing, without requiring high-precision positioning of the workpiece placed on the pallet. When the machine tool chuck grasps the workpiece, the ball stud of the inner locating column on the positioning pallet can be radially adjusted by an adjustment spring, while the support spring between the positioning pallet seat and the positioning pallet can also be axially adjusted, thereby ensuring the positioning accuracy of the workpiece in the machine tool chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an isometric diagram of the consignment mechanism with the material line mechanism.

[0014] Figure 2 This is the main view of the shipping agency.

[0015] Figure 3 This is the AA cross-sectional view of the consignment mechanism.

[0016] Figure 4 This is a partial enlarged view of the ball pin of the shipping mechanism.

[0017] Figure 5 This is the BB cross-sectional view of the shipping mechanism.

[0018] Among them: 1-swing cylinder; 2-swing shaft; 3-translation plate; 4-thrust bearing; 5-bearing retaining ring; 6-top plate; 7-sensing block; 8-positioning tray seat; 9-positioning tray; 10-support spring; 11-support tube; 12-nylon plug; 13-inner circle positioning column; 14-ball pin; 15-pin; 16-slider; 17-workpiece; 18-adjusting spring. DETAILED DESCRIPTION

[0019] like Figures 1 to 5 As shown, an inverted lathe material line conveying mechanism is connected to the translation plate 3 through a slider 16 on two parallel guide rails, and a translation drive device is provided on the end side of the translation plate 3; a swing cylinder 1 is connected to the middle position of the lower surface of the translation plate 3, and the bottom of the swing shaft 2 passes through the translation plate 3 and is connected to the swing cylinder 1 through a key; a top plate 6 is connected to the top of the swing shaft 2, and a positioning tray seat 8 is provided at both ends of the top plate 6, and the positioning tray seat 8 is connected to the positioning tray 9 through an axial adjustment device, and a radial adjustment device is provided at the center of the positioning tray 9, and the outer circumference of the radial adjustment device limits the bottom inner hole of the workpiece 17; three support tubes 11 are evenly arranged on the circumference of the upper surface of the positioning tray 9, and the support tubes 11 support the outer edge bottom surface of the workpiece 17.

[0020] The axial adjustment device structure includes a circular box-shaped upper surface of the positioning tray seat 8 and a cylindrical lower surface of the positioning tray 9. The cylindrical structure of the positioning tray 9 and the circular box-shaped structure of the positioning tray seat 8 are coaxially spaced. Several support springs 10 are arranged on the inner circumference of the circular box-shaped structure. The bottom surface of the support springs 10 is supported on the positioning tray seat 8, and the top surface of the support springs 10 is supported on the lower surface of the positioning tray 9. Several screws are threaded onto the positioning tray 9, and the screws pass through the lower surface of the positioning tray 9 and coaxially engage with the support springs 10 in corresponding positions. The support springs 10 support the positioning tray 9 and can automatically adjust axially when the workpiece is slightly deflected.

[0021] A through hole is provided in the center of the top plate 6, and a circular positioning surface with a diameter larger than the through hole is provided on the upper surface. The small diameter axis at the lower end of the positioning tray seat 8 is coaxially matched with the through hole in the center of the top plate 6, and the circular box-shaped structure at the lower end of the positioning tray seat 8 is seated on the circular positioning surface of the top plate 6.

[0022] The radial adjustment device structure includes an inner circular positioning post 13 provided at the center of the upper surface of the positioning tray 9. The inner circular positioning post 13 is coaxially mated with the inner hole of the workpiece 17 with a certain clearance. Several pin holes are evenly distributed radially along the outer circumference of the inner circular positioning post 13. A ball pin 14 is coaxially mated with the pin holes. A groove is provided on the inner end surface of the ball pin 14. An adjustment spring 18 is provided within the groove. The adjustment spring 18 is supported on the inner circular positioning post 13. The outer end of the ball pin 14 is hemispherical, and the spherical surface contacts the inner wall of the hole of the workpiece 17. An axial long groove is provided on the outer circumference of the ball pin 14. A pin 15 is provided on the top surface of the inner circular positioning post 13. The lower end of the pin 15 is located in the long groove of the ball pin 14, which is used to limit the axial movement distance of the ball pin. Through the contact between the ball pin 14 and the inner hole of the workpiece and the supporting force of the adjustment spring 15, the workpiece is automatically adjusted radially.

[0023] The bottom of the support tube 11 passes through the positioning tray 9 and is threadedly connected to the nut; the top of the support tube 11 is connected to the nylon plug 12. By rotating the nut and nylon plug, the height of the support surface can be adjusted so that the top surfaces of the nylon plugs on the three support tubes are on the same plane, effectively supporting the parts.

[0024] The upper end of the swing shaft 2 is connected to the top plate 6 through a boss, and a thrust bearing 4 is provided at the boss. The upper side of the outer ring of the thrust bearing 4 is limited by the lower surface of the swing shaft boss, and the lower side of the outer ring of the thrust bearing 4 is limited by the upper surface of the translation plate 3.

[0025] An annular bearing retaining ring 5 is provided on the upper surface of the translation plate 3 . The bearing retaining ring 5 is located on the outer circumference of the thrust bearing 4 and is used to limit the position of the thrust bearing 4 .

[0026] Two sensing blocks 7 are provided on the top plate 6 , and the sensing blocks 7 are respectively close to the two positioning tray seats 8 . The sensing blocks 7 can control the movement and stop of the consignment mechanism.

[0027] The specific operating process of this application is as follows: The two sides of the base plate are divided into a first workstation and a second workstation. A manipulator is used to place a workpiece 17 on the three nylon plugs 12 of the positioning tray in the first workstation. The feed line mechanism's power unit drives the swing cylinder 1 of the transport mechanism. The swing cylinder 1 drives the connecting plate 3 to move on the guide rails of the feed line, and the top plate 6 rotates via the swing shaft 2, thereby moving the second workstation of the transport mechanism to a position where the machine tool chuck can grasp the workpiece. The machine tool places the processed workpiece on the three nylon plugs 12 of the positioning tray in the second workstation. The top plate 6 of the transport mechanism rotates 180°, and the machine tool chuck grasps the workpiece 17 in the first workstation. When the workpiece placed on the nylon plugs 12 is axially tilted, the support spring 10 adjusts the workpiece 17 axially as the machine tool chuck grasps the workpiece. If the workpiece is not in the radial center of the machine tool chuck, the adjustment spring 18 located in the ball stud will adjust the workpiece radially as the machine tool chuck grasps the workpiece. After the machine tool has finished picking up the workpiece 17 at the first workstation, the transport mechanism begins moving toward its initial position. At this point, the induction block activates, and the transport mechanism stops. The robot then moves the finished workpiece to the finished product area and places the unprocessed workpiece back on the pallet. The transport mechanism repeats this process until the desired workpiece is fully processed.

[0028] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the principles of the present invention, and should also be considered to fall within the scope of protection of the present invention.

Claims

1. An inverted lathe material line consignment mechanism, characterized by: The two parallel guide rails are connected to the translation plate (3) through a slider (16), and a translation driving device is provided on the end side of the translation plate (3); a swing cylinder (1) is connected to the middle position of the lower surface of the translation plate (3), and the bottom of the swing shaft (2) passes through the translation plate (3) and is connected to the swing cylinder (1) through a key; a top plate (6) is connected to the top of the swing shaft (2), and a positioning tray seat (8) is provided at both ends of the top plate (6), and a positioning tray (9) is connected to the positioning tray seat (8) through an axial adjustment device, and a radial adjustment device is provided at the center of the positioning tray (9). The radial adjustment device is provided, and the outer circumference of the radial adjustment device limits the bottom inner hole of the workpiece (17); three support tubes (11) are evenly arranged on the circumference of the upper surface of the positioning tray (9), and the support tubes (11) support the outer edge bottom surface of the workpiece (17); the radial adjustment device structure includes: an inner circle positioning column (13) is provided at the center of the upper surface of the positioning tray (9), and the inner circle positioning column (13) is clearance-matched with the inner hole of the workpiece (17); a plurality of pin holes are evenly distributed along the radial direction on the outer circumference of the inner circle positioning column (13), and the ball pin (14) is coaxial with the pin hole The inner end surface of the ball pin (14) is provided with a groove, and an adjustment spring (18) is provided in the groove. The adjustment spring (18) is supported on the inner circle positioning column (13). The outer end of the ball pin (14) is hemispherical, and the spherical surface contacts the inner wall of the hole of the workpiece (17); an axial long groove is provided on the outer circumference of the ball pin (14), and a pin (15) is provided on the top surface of the inner circle positioning column (13). The lower end of the pin (15) is located in the long groove of the ball pin (14); the axial adjustment device structure includes: the upper surface of the positioning tray seat (8) is a circular box The structure is as follows: the lower surface of the positioning tray (9) is a cylindrical structure, and the cylindrical structure of the positioning tray (9) is coaxially clearance-matched with the circular box-shaped structure of the positioning tray seat (8); a plurality of support springs (10) are arranged on the inner circumference of the circular box-shaped structure, the bottom surface of the support spring (10) is supported on the positioning tray seat (8), and the top surface of the support spring (10) is supported on the lower surface of the positioning tray (9); a plurality of screws are threadedly connected on the positioning tray (9), and the screws pass through the lower surface of the positioning tray (9) and coaxially match with the support springs (10) at corresponding positions.

2. The inverted lathe material line transport mechanism according to claim 1, characterized in that: The top plate (6) is provided with a through hole at its center, and a circular positioning surface with a diameter larger than the through hole is provided on its upper surface. The small diameter shaft at the lower end of the positioning tray seat (8) is coaxially matched with the through hole at the center of the top plate (6), and the circular box-shaped structure at the lower end of the positioning tray seat (8) is seated on the circular positioning surface of the top plate (6).

3. The inverted lathe material line transport mechanism according to claim 1, characterized in that: The bottom of the support tube (11) passes through the positioning tray (9) and is threadedly connected to the nut; and a nylon plug (12) is connected to the top of the support tube (11).

4. The inverted lathe material line transport mechanism according to claim 1, characterized in that: The upper end of the swing shaft (2) is connected to the top plate via a boss, and the thrust bearing (4) is connected to the boss. The upper side of the outer ring of the thrust bearing (4) is limited by the lower surface of the swing shaft boss, and the lower side of the outer ring of the thrust bearing (4) is limited by the upper surface of the translation plate (3).

5. The inverted lathe material line transport mechanism according to claim 4, characterized in that: An annular bearing retaining ring (5) is provided on the upper surface of the translation plate (3), and the bearing retaining ring (5) is located on the outer circumference of the thrust bearing (4).

6. The inverted lathe material line transport mechanism according to claim 1, characterized in that: Two sensing blocks (7) are provided on the top plate (6), and the sensing blocks (7) are respectively close to the two positioning tray seats (8).

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