Automatic feeding and discharging device for shaft workpieces of double-machining-station machine tool

Abstract

The utility model relates to a machine tool matching device, in particular to an automatic shaft workpiece feeding and discharging device of a double-machining-station machine tool, which comprises a shaft workpiece storage rack, a shaft workpiece discharging and placing rack and an automatic shaft workpiece carrying device. A material jacking frame and a V-shaped material receiving positioning groove frame which can only jack up one workpiece each time are sequentially arranged in front of the machine tool, the top of the material jacking frame also has a downward inclined plane slope from back to front, and a machining station of the double-machining-station machine tool is arranged in front of the V-shaped material receiving positioning groove frame. And an automatic control system. The automatic feeding and discharging device has the advantages of being capable of being connected with a machining center or an automatic machine tool control system, achieving integral control and independent control, achieving accurate positioning and automatic feeding and discharging, and being particularly suitable for machine tool machining feeding and discharging of long and heavy workpieces.

Description

Technical Field

[0001] The utility model relates to a mechanical handling device, in particular to an automatic up and down device for machining large and heavy shaft workpieces. Background Art

[0002] In the machining industry, manual loading and unloading is difficult due to the length and weight of some parts. Traditionally, cranes have been used for lifting, which is cumbersome. Furthermore, cranes are difficult to position accurately and are not easily linked to the control systems of automated machining centers, making automated loading and unloading difficult. Summary of the Invention

[0003] In order to overcome the defects of the existing technology, an automatic loading and unloading device for heavy workpiece racks has been developed, which can be integrated and controlled by a machining center or an automatic machine tool control system, or can be controlled separately, and can achieve accurate positioning and automatic loading of materials.

[0004] The technical solution adopted by this system to solve the technical problem is: an automatic loading and unloading device for shaft workpieces of a dual-processing-station machine tool, including a shaft workpiece storage rack, a shaft workpiece unloading and placement rack, and an automatic shaft workpiece handling device. The shaft workpiece storage rack has a downward inclined plane slope from the back to the front, and a lifting rack that can only lift one workpiece at a time and a V-shaped material receiving and positioning groove rack are arranged in front of it in sequence. The top of the lifting rack also has a downward inclined plane slope from the back to the front, and the front of the V-shaped material receiving and positioning groove rack is the processing position of the dual-processing-station machine tool;

[0005] It also includes an automatic control system for controlling the linkage of the ejector rack, the V-shaped material receiving positioning slot rack, and the automatic handling device for shaft workpieces;

[0006] The automatic handling device for shaft workpieces is responsible for moving the positioned workpieces from the V-shaped material receiving and positioning slot rack to the processing position of the double-processing position machine tool and unloading the processed shaft workpieces to the unloading placement rack.

[0007] A shaft workpiece unloading and placing rack is also provided in the space between the V-shaped material receiving and positioning groove rack and the processing position of the double-processing position machine tool.

[0008] The lifting rack is controlled to rise and fall by a cylinder arranged at the bottom.

[0009] The upper two side ends of the V-shaped material receiving and positioning groove frame are provided with a horizontal cylinder piston top shaft on one side, a fixed top shaft on the other side, and a workpiece sensing probe is provided at the bottom to control the opening and closing of the cylinder.

[0010] The automatic handling device for shaft workpieces includes a truss-type horizontal moving device and a vertical lifting device on a portal frame. The portal frame includes a crossbeam, and two columns are fixedly connected downward at both ends of the crossbeam. The crossbeam is provided with a truss driven by a servo motor and can move parallel to the crossbeam. The truss includes a horizontal track that is perpendicular to the crossbeam and extends toward one side of the crossbeam. There is a controllable vertical lifting device on the horizontal track. The vertical lifting device includes a vertical slide rail connecting assembly. The vertical slide rail connecting assembly is provided with a vertical slide rail driven by another servo motor. A mechanical clamp is fixed to the bottom end of the vertical slide rail.

[0011] The gantry is attached to two mutually parallel linear rails and a rack arranged on the crossbeam, and the gantry moves along the crossbeam driven by a servo motor.

[0012] The vertical slide rail is fixed with three parallel vertical linear rails and a rack that are not on the same plane. The vertical slide rail can be moved up and down by cooperating with the servo linear motor on the vertical slide rail connecting assembly on the truss.

[0013] The portion of the vertical slide rail that is exposed upward from the truss is provided with an inverted U-shaped flexible drag chain.

[0014] The mechanical gripper is pneumatic.

[0015] The cylinder air pipe of the mechanical gripper extends upward along the inner cavity of the vertical slide rail, passes through the flexible drag chain, and is connected to an external air source.

[0016] Two linear rails and a lead screw are provided on the horizontal track of the truss, and the vertical slide rail connecting assembly is attached to the linear rails and the lead screw and can move along the horizontal track.

[0017] The bottom ends of the two columns are fixed on the foundation through bases.

[0018] The beneficial effects of the utility model are that it can be connected with a machining center or an automatic machine tool control system for integrated control or independent control, and can realize accurate positioning and automatic loading of materials, and is particularly suitable for loading and unloading of long and heavy workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a three-dimensional view of the utility model;

[0021] Figure 2 is the cross-section of the beam;

[0022] Figure 3 A perspective view of a truss-type lateral movement device;

[0023] Figure 4 It is a cross-sectional view of the beam of the truss type transverse movement device;

[0024] Figure 5 It is a three-dimensional view of the vertical lifting and moving device;

[0025] Figure 6 It is a cross-sectional view of the vertical lifting and moving device;

[0026] Figure 7 is a stereoscopic view of the gripper;

[0027] Figure 8 This is a three-dimensional view of the shaft workpiece storage rack.

[0028] Figure 9 This is a three-dimensional view of the workpiece positioning device.

[0029] Figure 10 It is a three-dimensional view of the ejecting device.

[0030] Figure 11 The utility model is a three-dimensional view of the automatic machine tool in coordination with the utility model.

[0031] In the figure, 1. Column, 2. Column, 3. Beam, 4. Truss-type lateral moving device, 5. Vertical lifting device, 6. Gripper, 3-1. Beam, 3-2. Linear rail, 3-3. Linear rail, 3-3. Magnetic strip, 3-5. Drag chain, 4-1. Square tube, 4-2. Linear rail, 4-3. Linear rail, 4-4. Connecting plate, 4-5. Lead screw, 5-1. Square tube, 5-2. Drag chain, 5-3. Connecting plate, 5-4. Motor, 5-5. Linear rail, 5-6. Magnetic strip, 5-7. Linear rail, 5-1. Square tube, 5-2. Drag chain, 5-3. Connecting plate, 5-4. Motor, 5-5. Linear rail, 5-6. Magnetic strip, 5-7. Linear rail, 5-8. Linear rail, 6-1. Connecting plate, 6-2. Slider, 6-3. Insert, 6-4. Claw, 6-5. Cylinder, 7-1. Loading rack, 7-2. Ejector rack, 7-3. Workpiece positioning device, 7-4. Unloader, 7-3-1. Limit plate, 7-3-2. Linear rail, 7-3-3. Linear rail, 7-3-4. Square tube, 7-3-5. Cylinder pad, 7-3-6. Cylinder, 7-3-7. Photoelectric switch, 7-2-1. Fixed plate, 7-2-2. Auxiliary plate, 7-2-3. Cylinder, 7-2-4. Ejector plate, 7. Storage rack for shaft workpieces, 8. CNC machine tool. DETAILED DESCRIPTION

[0032] In the figure, columns 1 and 2, along with crossbeam 3, form a portal frame. Crossbeam 3 is equipped with two linear rails, a magnetic strip, and a drag chain. A truss-type transverse motion device 4 allows for movement in the direction of the beam. This device, equipped with two linear rails and a lead screw, drives a vertical lift device 5 for small lateral movements. The vertical lift device 5, equipped with three linear rails, a magnetic strip, and a linear rail, is driven by a motor to move the vertical lift device up and down. The jaw cylinder 6 is activated, and the slider drives the jaws to open and grip the workpiece, then move and clamp the workpiece. The inserts 6-3 can be replaced according to the workpiece diameter.

[0033] On ejector rack 7-2, the pneumatic cylinder activates the ejector plate, raising it and lifting the workpiece. The workpiece then falls along auxiliary plate 7-2-2 into workpiece positioning device 7-3, which features a pneumatic cylinder, a limit plate, two linear rails, and a photoelectric switch. The limit plate and cylinder backing plate can be manually moved and secured according to the workpiece length. When the pneumatic cylinder is activated, the workpiece is pushed into position on the limit plate. The photoelectric switch detects the presence of material, allowing the gripper to grasp the workpiece. If there is no material, the ejector device pushes the workpiece in.

[0034] The workpiece is started by the ejector rack 7-2 on the loading rack 7-1 through the cylinder 7-2-3, which drives the ejector plate 7-2-4 to rise and push the workpiece into the workpiece positioning device 7-3. The cylinder 7-3-6 is started to push the workpiece into the limit plate 7-3-1. The clamp moves to the workpiece position through the truss-type horizontal moving device 4 and the lifting and moving device 5. The cylinder 6-5 is started to drive the slider 6-2 to move, so that the clamp hand 6-4 opens to clamp the workpiece and grab it, and then moves it to the CNC lathe 8 position for processing. After processing, the clamp 6 moves the workpiece to the unloading rack 7-4 and puts it down.

Claims

1. Automatic loading and unloading device for shaft workpieces of double processing station machine tools, including shaft workpiece storage rack, shaft workpiece unloading rack, and shaft workpiece automatic handling device, which is characterized by The shaft workpiece storage rack has a downward inclined plane slope from the back to the front, and in front of it are sequentially provided with a lifting rack that can only lift one workpiece at a time and a V-shaped material receiving positioning groove rack. The top of the lifting rack also has a downward inclined plane slope from the back to the front, and in front of the V-shaped material receiving positioning groove rack is a processing position of a double-processing position machine tool; It also includes an automatic control system for controlling the linkage of the ejector rack, the V-shaped material receiving and positioning slot rack, and the automatic handling device for shaft workpieces; The automatic handling device for shaft workpieces is responsible for moving the positioned workpieces from the V-shaped material receiving and positioning groove rack to the processing position of the double-processing position machine tool and unloading the processed shaft workpieces to the unloading placement rack.

2. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool according to claim 1 is characterized in that A shaft workpiece unloading and placing rack is also provided in the space between the V-shaped material receiving and positioning groove rack and the processing position of the double-processing position machine tool.

3. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool according to claim 1, characterized in that The lifting rack is controlled to rise and fall by a cylinder arranged at the bottom.

4. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool according to claim 1 or 3, characterized in that The upper two side ends of the V-shaped material receiving and positioning groove frame are provided with a horizontal cylinder piston top shaft on one side, a fixed top shaft on the other side, and a workpiece sensing probe on the lower side to control the opening and closing of the cylinder.

5. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool as claimed in claim 1 is characterized in that The automatic handling device for shaft workpieces includes a truss-type horizontal moving device and a vertical lifting device on a portal frame. The portal frame includes a crossbeam, and two columns are fixedly connected downward at both ends of the crossbeam. The crossbeam is provided with a truss driven by a servo motor and can move parallel to the crossbeam. The truss includes a horizontal track that is perpendicular to the crossbeam and extends toward one side of the crossbeam. There is a controllable vertical lifting device on the horizontal track. The vertical lifting device includes a vertical slide rail connecting assembly. The vertical slide rail connecting assembly is provided with a vertical slide rail driven by another servo motor. A mechanical clamp is fixed to the bottom end of the vertical slide rail.

6. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool as described in claim 5 is characterized in that The gantry is attached to two mutually parallel linear rails and a rack arranged on the crossbeam, and the gantry moves along the crossbeam driven by a servo motor.

7. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool as claimed in claim 5 is characterized in that The vertical slide rail is fixed with three parallel vertical linear rails and a rack that are not on the same plane. The vertical slide rail can be moved up and down by cooperating with the servo linear motor on the vertical slide rail connecting assembly on the truss.

8. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool as claimed in claim 5 is characterized in that The portion of the vertical slide rail that is exposed upward from the truss is provided with an inverted U-shaped flexible drag chain.

9. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool as claimed in claim 5, characterized in that The mechanical gripper is pneumatic.

10. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool according to claim 9, characterized in that The cylinder air pipe of the mechanical gripper extends upward along the inner cavity of the vertical slide rail, passes through the flexible drag chain, and is connected to an external air source.

11. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool according to claim 5, characterized in that Two linear rails and a lead screw are provided on the horizontal track of the truss, and the vertical slide rail connecting assembly is attached to the linear rails and the lead screw and can move along the horizontal track.

12. The automatic loading and unloading device for shaft workpieces of a dual-processing station machine tool according to claim 5, characterized in that The bottom ends of the two columns are fixed on the foundation through bases.

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