Workpiece feeding and discharging device

Abstract

The utility model discloses a workpiece feeding and discharging device which comprises a feeding conveying line and a discharging conveying line and further comprises a first-stage workpiece grabbing device and a second-stage workpiece grabbing device. The feeding conveying line and the discharging conveying line are used for conveying workpieces for feeding and conveying the machined workpieces out correspondingly. The first-stage workpiece grabbing device is used for grabbing workpieces from the feeding conveying line to the second-stage workpiece grabbing device or grabbing the workpieces from the second-stage workpiece grabbing device to the discharging conveying line. The second-stage workpiece grabbing device is used for receiving the workpieces sent by the first-stage workpiece grabbing device and conveying the workpieces into the machining equipment or grabbing and conveying the machined workpieces to the first-stage workpiece grabbing device from the machining equipment; through cooperative operation of the feeding conveying line, the discharging conveying line, the first-stage workpiece grabbing device and the second-stage workpiece grabbing device, feeding and discharging operation of workpieces which are not convenient to feed through a vibration disc can be assisted.

Description

Technical Field

[0001] This utility model relates to the field of workpiece loading, specifically to a workpiece loading and unloading device. Background Technology

[0002] In the machinery manufacturing industry, workpieces often need to be stamped. Traditionally, workers manually put the workpieces into the punch press. Therefore, some existing technologies also have equipment for loading and unloading punch presses.

[0003] For example, patent CN220492577U discloses an automated punch press feeding device, including a feeding vibratory feeder and a punch press body. A worktable is fixedly installed inside the punch press body, and a feeding device is fixedly installed on the top of the punch press body. Limiting devices are fixedly installed on both sides of the feeding device, and a positioning adjustment device is fixedly installed at the other end of the feeding device. A discharge rail is fixedly connected to the side of the top of the worktable. This solution uses a limiting cylinder to synchronously push a sliding block towards the center of the limiting rail to position the workpiece, automatically feeding and positioning it to prevent movement during the feeding process, thereby improving the punching accuracy and increasing the workpiece yield.

[0004] The aforementioned patent uses a vibratory feeder to feed workpieces; however, the disadvantages of the aforementioned patent are: generally, vibratory feeder feeding has requirements on the size of the workpiece, and is generally only suitable for small workpieces (such as small parts like nuts and screws), while it is generally not suitable for large workpieces, and vibratory feeder feeding will generate vibration, and the connection of some semi-finished workpieces is not very firm and is easy to break apart.

[0005] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a workpiece loading and unloading device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The workpiece loading and unloading device includes a loading conveyor line and an unloading conveyor line, as well as a primary workpiece gripping device and a secondary workpiece gripping device. The loading conveyor line and the unloading conveyor line are used to transport workpieces for loading and to transport processed workpieces out, respectively. The primary workpiece gripping device is used to grip workpieces from the loading conveyor line to the secondary workpiece gripping device or from the secondary workpiece gripping device to the unloading conveyor line. The secondary workpiece gripping device is used to receive workpieces from the primary workpiece gripping device and transport them to the processing equipment, or to grip and transport processed workpieces from the processing equipment to the primary workpiece gripping device. The first-stage workpiece gripping device includes a first-stage mounting bracket; a first-stage X-axis linear module is horizontally mounted on the top of the first-stage mounting bracket; a first-stage Z-axis cylinder is fixedly mounted on the slide of the first-stage X-axis linear module; the first-stage Z-axis cylinder is vertically downward and a first-stage reversing cylinder mounting seat is fixedly mounted at the end of the output shaft of the first-stage Z-axis cylinder; a first-stage reversing cylinder is fixedly mounted on the side of the first-stage reversing cylinder mounting seat; a first-stage clamping cylinder mounting seat is fixedly mounted on the output shaft of the first-stage reversing cylinder; a first-stage clamping cylinder is fixedly mounted on the first-stage clamping cylinder mounting seat; and a first-stage clamping claw is fixedly mounted on the output shaft of the first-stage clamping cylinder.

[0009] Furthermore, the loading conveyor line and the unloading conveyor line have the same structure and are arranged in a mirror image.

[0010] Furthermore, the feeding conveyor line includes a conveyor support frame and two spaced conveyor belts; the first end of the conveyor support frame is rotatably equipped with a drive shaft, on which two drive pulleys of the conveyor belt are fixedly installed; the last end of the conveyor support frame is rotatably connected to two driven pulleys of the conveyor belt, and a conveyor belt is drivingly connected between the drive pulleys and the driven pulleys of the conveyor belt.

[0011] Furthermore, the feeding conveyor line also includes a stepper motor, which is connected to a drive shaft. The rotation of the stepper motor drives the drive shaft to rotate, which in turn drives the conveyor belt to move. The workpiece is placed on the conveyor belt, which in turn drives the workpiece to move.

[0012] Furthermore, the primary workpiece gripping device also includes an auxiliary cylinder, which is located below the conveyor belt of the feeding conveyor line and below the primary gripping claw; a lifting plate is fixedly installed on the output shaft of the auxiliary cylinder.

[0013] Furthermore, the secondary workpiece gripping device includes a secondary mounting plate; a secondary X-axis linear module and a secondary X-axis slide rail are horizontally mounted on the top of the secondary mounting plate. Two secondary X-axis slide rails are provided and are arranged parallel to each other in the left-right direction. The secondary X-axis linear module is located behind the secondary X-axis slide rails. A secondary X-axis moving stage is slidably connected to the top of the secondary X-axis slide rails via a slider. The rear side of the secondary X-axis moving stage is fixedly connected to the slide of the secondary X-axis linear module. A secondary Z-axis moving stage is provided above the secondary X-axis moving stage. A secondary Z-axis lifting cylinder is fixedly mounted on the bottom of the secondary X-axis moving stage, and the output shaft of the secondary Z-axis lifting cylinder passes through the secondary X-axis moving stage and is fixedly connected to the bottom of the secondary Z-axis moving stage. A secondary reversing cylinder is fixedly mounted on the top of the secondary Z-axis moving stage. A secondary receiving platform is fixedly mounted on the output shaft of the secondary reversing cylinder. A secondary gripping cylinder is fixedly mounted on the secondary receiving platform, and a secondary clamping claw is mounted on the output shaft of the secondary gripping cylinder.

[0014] Furthermore, four guide shafts are fixedly installed above the secondary X-axis moving stage, and linear bearings are installed at the four corners of the secondary Z-axis moving stage. The guide shafts pass through the linear bearings and are slidably connected to the secondary Z-axis moving stage.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a feeding conveyor line, a discharging conveyor line, a primary workpiece gripping device, and a secondary workpiece gripping device working in tandem to assist in the feeding and discharging of workpieces that are not convenient to be fed by a vibratory feeder. The gripping device features a split design, allowing for rapid adaptation to different production line requirements. Dual cylinders work together (lifting + clamping) to grip workpieces, accommodating workpieces of different sizes and shapes. A reversing cylinder supports workpiece orientation adjustment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the workpiece loading and unloading device.

[0018] Figure 2 This is a front view of the workpiece loading and unloading device.

[0019] Figure 3 This is a side view of the workpiece loading and unloading device.

[0020] Figure 4 This is a top view of the workpiece loading and unloading device.

[0021] Figure 5 This is a cross-sectional view of the loading conveyor line in the workpiece loading and unloading device.

[0022] Figure 6 This is a schematic diagram of the first-stage workpiece gripping device in a workpiece loading and unloading device.

[0023] Figure 7 This is a schematic diagram of the secondary workpiece gripping device in a workpiece loading and unloading device.

[0024] Figure 8 This is a side view of the secondary workpiece gripping device in the workpiece loading and unloading device. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] Please see Figure 1-8 The workpiece loading and unloading device includes a loading conveyor line 1 and an unloading conveyor line 2, as well as a primary workpiece gripping device 3 and a secondary workpiece gripping device 4.

[0027] The loading conveyor line 1 and unloading conveyor line 2 have the same structure and are arranged in a mirror image, respectively used to transport workpieces for loading and to transport the processed workpieces out.

[0028] like Figure 5 As shown, the feeding conveyor line 1 includes a conveyor support 101 and two conveyor belts 105 spaced apart; a drive shaft 102 is rotatably mounted at the first end of the conveyor support 101, and two drive pulleys 103 of the conveyor belt are fixedly mounted on the drive shaft 102; two driven pulleys 104 of the conveyor belt are rotatably connected to the end of the conveyor support 101, and the conveyor belt 105 is drivingly connected between the drive pulleys 103 and the driven pulleys 104.

[0029] The feeding conveyor line 1 also includes a stepper motor 106, which is connected to the drive shaft 102. The stepper motor 106 rotates to drive the drive shaft 102 to rotate, which in turn drives the conveyor belt 105 to move. The workpiece is placed on the conveyor belt 105, which in turn drives the workpiece to move.

[0030] The advantage of stepper motor 106 is that the rotation angle of stepper motor is strictly proportional to the number of input pulses, the error per step is only 3%-5% and there is no cumulative error, the action is precise, so that the workpiece can be accurately stopped below the first-level workpiece gripping device 3; and the first-level workpiece gripping device 3 can easily grip the workpiece.

[0031] like Figure 6 As shown, the primary workpiece gripping device 3 is used to grip the workpiece from the loading conveyor line 1 to the secondary workpiece gripping device 4 or to grip the workpiece from the secondary workpiece gripping device 4 to the unloading conveyor line 2; the secondary workpiece gripping device 4 is used to receive the workpiece sent by the primary workpiece gripping device 3 and transport the workpiece to the processing equipment or to grip and transport the processed workpiece from the processing equipment to the primary workpiece gripping device 3.

[0032] The primary workpiece gripping device 3 includes a primary mounting bracket 301; a primary X-axis linear module 302 is horizontally mounted on the top of the primary mounting bracket 301; a primary Z-axis cylinder 303 is fixedly mounted on the slide of the primary X-axis linear module 302; the primary Z-axis cylinder 303 is vertically downward and a primary reversing cylinder mounting seat 304 is fixedly mounted at the end of the output shaft of the primary Z-axis cylinder 303; a primary reversing cylinder 305 is fixedly mounted on the side of the primary reversing cylinder mounting seat 304; a primary clamping cylinder mounting seat 306 is fixedly mounted on the output shaft of the primary reversing cylinder 305; a primary clamping cylinder 307 is fixedly mounted on the primary clamping cylinder mounting seat 306; and a primary clamping claw 308 is fixedly mounted on the output shaft of the primary clamping cylinder 307.

[0033] The primary workpiece gripping device 3 also includes an auxiliary cylinder 309, which is located below the conveyor belt 105 of the feeding conveyor line 1 and below the primary gripper 308; a lifting plate 310 is fixedly installed on the output shaft of the auxiliary cylinder 309.

[0034] When the workpiece moves to below the primary gripper 308, the stepper motor 106 stops, the workpiece stops, the auxiliary cylinder 309 extends, and the lifting plate 310 on the output shaft of the auxiliary cylinder 309 lifts the workpiece, making it easier for the primary workpiece gripping device 3 to grip the workpiece.

[0035] like Figure 7-8 As shown, the secondary workpiece gripping device 4 includes a secondary mounting plate 401; a secondary X-axis linear module 402 and a secondary X-axis slide rail 403 are horizontally mounted on the top of the secondary mounting plate 401. There are two secondary X-axis slide rails 403, and the two secondary X-axis slide rails 403 are arranged parallel to each other in the left and right directions. The secondary X-axis linear module 402 is located behind the secondary X-axis slide rail 403.

[0036] The top of the secondary X-axis slide rail 403 is slidably connected to the secondary X-axis moving stage 404 via a slider; the rear side of the secondary X-axis moving stage 404 is fixedly connected to the slide of the secondary X-axis linear module 402, and the secondary X-axis linear module 402 drives the secondary X-axis moving stage 404 to move left and right along the secondary X-axis slide rail 403.

[0037] A secondary Z-axis moving stage 405 is provided above the secondary X-axis moving stage 404. A secondary Z-axis lifting cylinder 406 is fixedly installed at the bottom of the secondary X-axis moving stage 404. The output shaft of the secondary Z-axis lifting cylinder 406 passes through the secondary X-axis moving stage 404 and is fixedly connected to the bottom of the secondary Z-axis moving stage 405.

[0038] In this scheme, in order to limit the movement path of the secondary Z-axis moving stage 405, four guide shafts 407 are fixedly installed above the secondary X-axis moving stage 404, and linear bearings 408 are installed at the four corners of the secondary Z-axis moving stage 405. The guide shafts 407 pass through the linear bearings 408 and are slidably connected to the secondary Z-axis moving stage 405. A secondary reversing cylinder 409 is fixedly installed on the top of the secondary Z-axis moving stage 405. A secondary receiving platform 410 is fixedly installed on the output shaft of the secondary reversing cylinder 409. A secondary gripping cylinder 411 is fixedly installed on the secondary receiving platform 410. A secondary clamping claw 412 is installed on the output shaft of the secondary gripping cylinder 411.

[0039] When this utility model is used, the feeding conveyor line 1 transports the workpiece to the bottom of the first-level workpiece gripping device 3, the auxiliary cylinder 309 extends, and the lifting plate 310 lifts the workpiece.

[0040] The action of the first-stage Z-axis cylinder 303 of the first-stage workpiece gripping device 3 drives the first-stage clamping cylinder 307 to descend, and the first-stage clamping cylinder 307 grips the workpiece.

[0041] Meanwhile, if the workpiece needs to be flipped, the action of the first-stage reversing cylinder 305 can rotate the first-stage clamping cylinder 307 before the workpiece is gripped.

[0042] After the first-stage clamping cylinder 307 grips the workpiece, the first-stage Z-axis cylinder 303 moves to lift the workpiece, and the first-stage X-axis linear module 302 moves the workpiece to the right to above the second-stage workpiece gripping device 4. Then, the first-stage reversing cylinder 305 rotates the workpiece; the first-stage Z-axis cylinder 303 moves the workpiece down to above the second-stage receiving platform 410.

[0043] The action of the secondary Z-axis lifting cylinder 406 drives the secondary clamping jaw 412 above the secondary receiving platform 410 to rise and grab the workpiece of the primary clamping jaw of the primary clamping cylinder 307.

[0044] Then the secondary reversing cylinder 409 moves, causing the workpiece to rotate horizontally by 180°. Finally, the secondary X-axis linear module 402 moves to send the workpiece along the secondary X-axis slide rail 403 into the punch press or other processing equipment.

[0045] To retrieve the processed workpiece, the operation is reversed. The secondary reversing cylinder 409 activates the gripping cylinder, and the primary workpiece gripping device 3 grips the workpiece sent by the secondary workpiece gripping device 4. Then, the primary workpiece gripping device 3 places the workpiece into the unloading conveyor line 2.

[0046] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A workpiece loading and unloading device, comprising an loading conveyor line and an unloading conveyor line, characterized in that, It also includes a primary workpiece gripping device and a secondary workpiece gripping device; the loading conveyor line and the unloading conveyor line are used to transport workpieces for loading and to transport processed workpieces out, respectively; the primary workpiece gripping device is used to grip workpieces from the loading conveyor line to the secondary workpiece gripping device or from the secondary workpiece gripping device to the unloading conveyor line; the secondary workpiece gripping device is used to receive workpieces from the primary workpiece gripping device and transport them to the processing equipment or to grip and transport processed workpieces from the processing equipment to the primary workpiece gripping device; the primary workpiece gripping device... The device includes a primary mounting bracket; a primary X-axis linear module is horizontally mounted on the top of the primary mounting bracket; a primary Z-axis cylinder is fixedly mounted on the slide of the primary X-axis linear module; the primary Z-axis cylinder is vertically downward and a primary reversing cylinder mounting seat is fixedly mounted at the end of the output shaft of the primary Z-axis cylinder; a primary reversing cylinder is fixedly mounted on the side of the primary reversing cylinder mounting seat; a primary clamping cylinder mounting seat is fixedly mounted on the output shaft of the primary reversing cylinder; a primary clamping cylinder is fixedly mounted on the primary clamping cylinder mounting seat; and a primary clamping claw is fixedly mounted on the output shaft of the primary clamping cylinder.

2. The workpiece loading and unloading device according to claim 1, characterized in that, The loading and unloading conveyors have the same structure and are arranged in a mirror image.

3. The workpiece loading and unloading device according to claim 2, characterized in that, The feeding conveyor line includes a conveyor support frame and two spaced conveyor belts; the first end of the conveyor support frame is rotatably equipped with a drive shaft, on which two drive pulleys of the conveyor belt are fixedly installed; the last end of the conveyor support frame is rotatably connected to two driven pulleys of the conveyor belt, and a conveyor belt is drivingly connected between the drive pulleys and the driven pulleys of the conveyor belt.

4. The workpiece loading and unloading device according to claim 3, characterized in that, The feeding conveyor line also includes a stepper motor, which is connected to a drive shaft. The rotation of the stepper motor drives the drive shaft to rotate, which in turn drives the conveyor belt to move. The workpiece is placed on the conveyor belt, which in turn moves the workpiece.

5. The workpiece loading and unloading device according to claim 1, characterized in that, The primary workpiece gripping device also includes an auxiliary cylinder, which is located below the conveyor belt of the feeding conveyor line and below the primary gripping claw; a lifting plate is fixedly installed on the output shaft of the auxiliary cylinder.

6. The workpiece loading and unloading device according to claim 1, characterized in that, The secondary workpiece gripping device includes a secondary mounting plate; a secondary X-axis linear module and a secondary X-axis slide rail are horizontally mounted on the top of the secondary mounting plate. Two secondary X-axis slide rails are provided and are arranged parallel to each other in the left-right direction. The secondary X-axis linear module is located behind the secondary X-axis slide rails. A secondary X-axis moving stage is slidably connected to the top of the secondary X-axis slide rails via a slider. The rear side of the secondary X-axis moving stage is fixedly connected to the slide of the secondary X-axis linear module. A secondary Z-axis moving stage is located above the secondary X-axis moving stage. A secondary Z-axis lifting cylinder is fixedly mounted on the bottom of the secondary X-axis moving stage, and the output shaft of the secondary Z-axis lifting cylinder passes through the secondary X-axis moving stage and is fixedly connected to the bottom of the secondary Z-axis moving stage. A secondary reversing cylinder is fixedly mounted on the top of the secondary Z-axis moving stage. A secondary receiving platform is fixedly mounted on the output shaft of the secondary reversing cylinder. A secondary gripping cylinder is fixedly mounted on the secondary receiving platform, and a secondary clamping claw is mounted on the output shaft of the secondary gripping cylinder.

7. The workpiece loading and unloading device according to claim 6, characterized in that, Four guide shafts are fixedly installed above the secondary X-axis moving stage, and linear bearings are installed at the four corners of the secondary Z-axis moving stage. The guide shafts pass through the linear bearings and are slidably connected to the secondary Z-axis moving stage.

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