Part detecting and sorting device and working method

Abstract

The invention discloses a part detecting and sorting device and a working method, and solves the problem of production energy consumption waste caused by continuous processing of defective products and the problem of low production efficiency caused by detection of semi-finished products. According to the technical scheme, the device comprises a part conveying device, a part detecting device and a mechanical arm; a part conveying device is arranged at one end of the part detection device, and the part detection device comprises a detection mold and a detection table; a through hole is formed in the center of the detection table, the detection mold can reciprocate in the through hole, and a first pneumatic cylinder is arranged at the lower end of the detection mold; a pre-positioning ejector pin is arranged at the other end of the detection table; a groove matched with a part in shape is formed in the edge of the detection mold; a plurality of contact sensors are arranged on the upper plane of the detection mold, the contact sensors are all connected with a controller, and the controller is connected with a driver of the mechanical arm.

Description

Technical Field

[0001] The invention belongs to the technical field of precision machining, and in particular relates to a parts detection and sorting device and a working method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, some plate parts need to be aligned before slope pressing to prevent damage to the parts during slope pressing. The existing punch positioning method often deviates, causing slope pressing to damage the product. It is also necessary to conduct qualified inspection on the parts processed in the previous process of slope pressing. The existing inspection methods are image inspection or laser inspection, and the qualified inspection of multiple positions of the same part greatly reduces the inspection speed. In addition, the existing technology usually performs inspection after slope pressing, which not only reduces production efficiency but also wastes equipment capacity.

[0004] At present, the prior art CN112657853B includes key components such as measuring sensors and blowing support frames; the measuring sensor only measures the diameter of a single part, which cannot be achieved when the structure of the part is relatively complex and there are many points to be measured. It is necessary to measure point by point, which makes the measurement efficiency low; in addition, the measuring sensor involved in the prior art is the final qualified detection of the product. If it is used in the intermediate links, the production efficiency will be reduced. If the intermediate semi-finished products are not detected, there will be a process of continuing to process defective semi-finished products, wasting the production energy consumption of the equipment. Summary of the invention

[0005] In view of the above problems, the present invention provides a parts inspection and sorting device and a working method, and provides a rapid inspection device for semi-finished parts. At the same time, defective products are automatically removed according to the inspection results, thereby avoiding the problem of waste of production energy due to continuous processing of defective products. The semi-finished parts can be inspected once for qualification by inspecting the mold, thereby avoiding the problem of reduced production efficiency due to semi-finished product inspection.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] In a first aspect, the present invention provides a parts detection and sorting device, comprising a parts conveying device, a parts detection device and a mechanical arm;

[0008] A part conveying device is provided at one end of the part detection device, and the part detection device includes a detection mold and a detection platform; a through hole is provided at the center of the detection platform, and the detection mold is arranged in the through hole. The detection mold can reciprocate in the through hole, and a first pneumatic cylinder is provided at the lower end of the detection mold for pushing the detection mold to move in the through hole;

[0009] A transition plate is fixedly arranged at one end of the testing platform close to the parts conveying device, and a pre-positioning ejector is arranged at the other end of the testing platform;

[0010] The edge of the detection mold is provided with a groove matching the shape of the part; the upper plane of the detection mold is provided with a plurality of contact sensors, and the contact sensors are all connected to a controller, and the controller is connected to a driver of the mechanical arm.

[0011] Furthermore, a mold sleeve is provided at the edge of the central through hole of the detection platform, and the mold sleeve has the same shape as the detection mold.

[0012] Furthermore, guide blocks are detachably provided on both sides of the detection platform, and waist holes are provided on the guide blocks for adjusting the installation position of the guide blocks on the detection platform.

[0013] Furthermore, the pre-positioning ejector includes a second pneumatic cylinder and an ejector, the second pneumatic cylinder is fixedly arranged on the ejector bracket, the ejector is fixedly connected to the second pneumatic cylinder, and the ejector reciprocates under the drive of the second pneumatic cylinder.

[0014] Furthermore, the parts conveying device includes a conveyor belt, a limiting guide rail, a second supporting leg and a driving mechanism; the limiting guide rails are fixedly arranged on both sides of the conveyor belt; the second supporting leg is fixedly arranged below the conveyor belt, and a driving mechanism is arranged at one end of the conveyor belt.

[0015] Furthermore, the driving mechanism is a stepping motor and a reducer.

[0016] Furthermore, the ejector bracket is provided with a waist hole for adjusting the installation position of the ejector bracket on the detection platform.

[0017] Furthermore, a first supporting leg is disposed at the lower portion of the first pneumatic cylinder.

[0018] Furthermore, the detection mold and the first pneumatic cylinder are detachably connected.

[0019] In a second aspect, the present invention further provides a working method of a parts detection and sorting device, comprising the following steps:

[0020] S1, conveying the parts to above the parts detection device through the parts conveying device;

[0021] S2, pre-positioning the part by a predetermined external device, and after pre-positioning, lifting the detection mold by a first gas pressure rod so that the part is sleeved on the detection mold;

[0022] S3. Detect parts through multiple contact sensors. If all contact sensors have signals, it means that the parts are completely fitted with the detection mold. The controller will control the driver of the robotic arm to use the robotic arm to send the parts to the next process. If some contact sensors have no signals, it means that the product is unqualified. The controller will control the driver of the robotic arm to use the robotic arm to send the parts to the defective product box.

[0023] Compared with the prior art, the present invention has the following advantages and positive effects:

[0024] The present invention can realize efficient and accurate detection. It adopts contact sensors in combination with detection molds, and can accurately judge whether the parts are completely fitted with the detection molds, so as to accurately distinguish qualified and unqualified products. When all contact sensors are touched, it means that the parts are qualified, which improves the accuracy of detection. A groove matching the shape of the parts is provided on the edge of the detection mold, so that the corresponding position of the parts can enter the groove. If the parts are completely fitted with the detection mold, the parts are qualified; when the processing error of the parts is large and they cannot fall into the groove, they cannot be completely fitted with the detection mold. The robot arm will transport the parts to different processes for processing according to different detection results, and send qualified parts to the next process, and send unqualified parts to the defective box, so as to realize the automation of detection and sorting, and improve the detection and sorting efficiency of parts on the production line.

[0025] The detection mold of the present application is detachably connected to the first pneumatic cylinder, and the corresponding detection mold can be replaced according to parts of different shapes, which improves the versatility and applicability of the detection device. The guide blocks on both sides of the detection table and the ejector brackets of the pre-positioning ejector are provided with waist holes, and the installation positions of the guide blocks and the ejector brackets on the detection table can be adjusted to meet the detection requirements of parts of different sizes, thereby improving the flexibility of the device. The parts conveying device is driven by a driving mechanism composed of a stepper motor and a reducer, which can control the speed of the conveyor belt to avoid the accumulation of parts above the parts detection device, thereby realizing the orderly conveying of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 This is the overall structural diagram of the parts detection and sorting device of the present invention;

[0028] Figure 2 It is a structural diagram of the parts detection device of the present invention;

[0029] Figure 3 It is a schematic diagram of the cooperation between the parts and the parts detection device of the present invention;

[0030] Figure 4 This is a structural diagram of the detection mold of the present invention.

[0031] In the figure: 1. parts detection device; 1-1. detection table; 1-2. detection mold; 1-3. mold sleeve; 1-4. guide block; 1-5. transition plate; 1-6. first pneumatic cylinder; 1-7. contact sensor; 1-8. positioning block; 2. parts conveying device; 3. pre-positioning ejector; 3-1. ejector bracket; 3-2. ejector; 3-3. second pneumatic cylinder; 4. second supporting leg; 5. first supporting leg; 6. parts. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0034] This embodiment discloses a parts detection and sorting device, such as Figure 1-Figure 4 As shown, it includes a part conveying device 2, a part detection device 1 and a robotic arm, wherein the part detection device 1 is provided with the part conveying device 2 at one end, and the part detection device 1 includes a detection mold 1-2 and a detection table 1-1; a through hole is provided at the center of the detection table 1-1, and the detection mold 1-2 is arranged in the through hole, and the detection mold 1-2 can reciprocate in the through hole, and a first pneumatic cylinder 1-6 is provided at the lower end of the detection mold 1-2 for pushing the detection mold 1-2 to move in the through hole; a transition plate 1-5 is fixedly provided at one end of the detection table 1-1 close to the part conveying device 2, for smooth transition of the part 6 between the part conveying device 2 and the detection table 1-1, and a pre-positioning ejector 3 is provided at one end of the detection table 1-1 for pre-positioning the part 6 to facilitate subsequent qualified detection of the part 6; a plurality of contact sensors 1-7 are provided on the upper plane of the detection mold 1-2, and the contact sensors 1-7 are all connected to the controller, and the controller is connected to the driver of the robotic arm for controlling and driving the robotic arm to grab the part 6.

[0035] A mold sleeve 1-3 is provided at the edge of the central through hole of the detection table 1-1. The mold sleeve 1-3 has the same shape as the detection mold 1-2. The detection mold 1-2 is detachably connected to the first pneumatic cylinder 1-6. In this embodiment, plug-in is used and positioning is performed using a limit pin; a groove matching the shape of the part 6 is provided at the edge of the detection mold 1-2, so that the part 6 can trigger all contact sensors when it is sleeved on the detection mold 1-2. When all contact sensors are touched, it means that the part 6 is completely fitted with the detection mold 1-2, and thus the part 6 is qualified. Since the detection mold 1-2 is detachably connected to the first pneumatic cylinder 1-6, the detection mold 1-2 can be adjusted according to the shape of the detected part 6. The detection mold 1-2 of different shapes is replaced differently; the detection mold 1-2 is provided with a positioning block 1-8, so that all parts 6 cannot fall off the detection mold 1-2; in the present embodiment, the detection mold 1-2 is circular, and a window beam groove is further provided at the edge of the detection mold 1-2, and the part 6 is a bearing roller retainer, and there are windows and window beams on the retainer, and when the part 6 is qualified, the window beam on the retainer will completely slide into the window beam groove; if the part 6 is unqualified and the window beam position is greatly offset, the window beam on the retainer cannot fall into the window beam groove; guide blocks 1-4 are detachably provided on both sides of the detection platform 1-1, and waist holes are provided on the guide blocks 1-4, and the waist holes are used to adjust the installation position of the guide blocks 1-4 on the detection platform 1-1.

[0036] The pre-positioning ejector 3 is installed on the detection platform 1-1 through the ejector bracket 3-1, and the ejector bracket 3-1 is provided with a waist hole for adjusting the installation position of the ejector bracket 3-1 on the detection platform 1-1; the pre-positioning ejector 3 includes a second pneumatic cylinder 3-3 and an ejector 3-2, the second pneumatic cylinder 3-3 is fixedly arranged on the ejector bracket 3-1, the ejector 3-2 is fixedly connected to the second pneumatic cylinder 3-3, and the ejector 3-2 reciprocates under the drive of the second pneumatic cylinder 3-3; the first pneumatic cylinder 1-6 is provided with a first supporting leg 5 at the lower part.

[0037] The parts conveying device 2 includes a conveyor belt, a limiting guide rail, a second supporting leg 4 and a driving mechanism; the limiting guide rails are fixedly arranged on both sides of the conveyor belt to limit the orderly transmission of the parts 6, the second supporting leg 4 is fixedly arranged below the conveyor belt, and a driving mechanism is arranged at one end of the conveyor belt for driving the conveyor belt, and the driving mechanism is composed of a stepping motor and a reducer.

[0038] The upper plane of the detection mold 1-2 is provided with a plurality of contact sensors 1-7, and the contact sensors 1-7 are all connected to the controller, and the controller is connected to the driver of the robotic arm to control and drive the robotic arm to grab the part 6; after the part 6 is pre-positioned, the first pneumatic cylinder 1-6 is actuated to lift the part 6 through the detection mold 1-2, and the controller will determine whether the part 6 is in contact with all the contact sensors 1-7 according to the feedback signals of the plurality of contact sensors 1-7. If all the contact sensors 1-7 have signals, it means that the part 6 is completely fitted with the detection mold 1-2, further indicating that the part 6 is qualified, and the controller will control the driver of the robotic arm to use the robotic arm to send the part 6 to the next process; if the product is unqualified, it cannot slide completely into the test tooling, and it will tilt on the detection tooling and cannot fit tightly with the detection mold 1-2. At this time, some of the contact sensors 1-7 have no signals, indicating that the product is unqualified, and the controller will control the driver of the robotic arm to use the robotic arm to send the part 6 into the defective product box.

[0039] Working method:

[0040] S1. Part 6 is transported to the top of the part detection device 1 through the part conveying device 2. The parts conveying device 2 has limit guide rails on both sides, so that the parts 6 can be arranged in sequence along the conveyor belt. The stepper motor can control the movement speed of the conveyor belt to avoid the parts 6 from piling up above the part detection device 1.

[0041] S2. Pre-position the part 6 by means of a predetermined external device. After pre-positioning, the detection mold 1-2 is lifted up by the first pneumatic rod so that the part 6 is mounted on the detection mold 1-2. The principle of pre-positioning is to use the second pneumatic cylinder 3-3 to drive the ejector pin 3-2 to collide with the part 6 multiple times to achieve fine adjustment of the angle of the part 6, so that the part 6 corresponds exactly to the angle of the detection mold 1-2, thereby avoiding misjudgment of the detection of the part 6.

[0042] S3. Detect part 6 through multiple contact sensors 1-7. If all contact sensors 1-7 have signals, it means that part 6 is completely fitted with the detection mold 1-2. The controller will control the driver of the robot arm to use the robot arm to send part 6 to the next process. If some contact sensors 1-7 have no signals, it means that the product is unqualified. The controller will control the driver of the robot arm to use the robot arm to send part 6 to the defective product box.

[0043] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A parts detection and sorting device, characterized in that: It includes a parts conveying device, a parts detecting device and a robotic arm; A part conveying device is provided at one end of the part detection device, and the part detection device includes a detection mold and a detection platform; a through hole is provided at the center of the detection platform, and the detection mold is arranged in the through hole. The detection mold can reciprocate in the through hole, and a first pneumatic cylinder is provided at the lower end of the detection mold for pushing the detection mold to move in the through hole; A transition plate is fixedly arranged at one end of the testing platform close to the parts conveying device, and a pre-positioning ejector is arranged at the other end of the testing platform; The edge of the detection mold is provided with a groove matching the shape of the part; the upper plane of the detection mold is provided with a plurality of contact sensors, and the contact sensors are all connected to a controller, and the controller is connected to a driver of the mechanical arm.

2. A parts detection and sorting device as claimed in claim 1, characterized in that: A mold sleeve is arranged at the edge of the central through hole of the detection platform, and the mold sleeve has the same shape as the detection mold.

3. A parts detection and sorting device as claimed in claim 1, characterized in that: Guide blocks are detachably provided on both sides of the detection platform, and waist holes are provided on the guide blocks for adjusting the installation position of the guide blocks on the detection platform.

4. A parts detection and sorting device as claimed in claim 1, characterized in that: The pre-positioning ejector includes a second pneumatic cylinder and an ejector, wherein the second pneumatic cylinder is fixedly arranged on the ejector bracket, the ejector is fixedly connected to the second pneumatic cylinder, and the ejector moves back and forth under the drive of the second pneumatic cylinder.

5. A parts detection and sorting device as claimed in claim 1, characterized in that: The parts conveying device includes a conveyor belt, a limiting guide rail, a second supporting leg and a driving mechanism; the limiting guide rails are fixedly arranged on both sides of the conveyor belt; the second supporting leg is fixedly arranged below the conveyor belt, and a driving mechanism is arranged at one end of the conveyor belt.

6. A parts detection and sorting device as claimed in claim 5, characterized in that: The driving mechanism is a stepping motor and a reducer.

7. A parts detection and sorting device as claimed in claim 4, characterized in that: The ejector bracket is provided with a waist hole for adjusting the installation position of the ejector bracket on the detection table.

8. A parts detection and sorting device as claimed in claim 1, characterized in that: A first supporting leg is disposed at the lower portion of the first pneumatic cylinder.

9. A parts detection and sorting device as claimed in claim 1, characterized in that: The detection mold and the first pneumatic cylinder are detachably connected.

10. A working method of a parts detection and sorting device according to any one of claims 2 to 9, characterized in that: The steps include: S1, conveying the parts to above the parts detection device through the parts conveying device; S2, pre-positioning the part by a predetermined external device, and after pre-positioning, lifting the detection mold by a first gas pressure rod so that the part is sleeved on the detection mold; S3. Detect parts through multiple contact sensors. If all contact sensors have signals, it means that the parts are completely fitted with the detection mold. The controller will control the driver of the robotic arm to use the robotic arm to send the parts to the next process. If some contact sensors have no signals, it means that the product is unqualified. The controller will control the driver of the robotic arm to use the robotic arm to send the parts to the defective product box.

Images