Sampling inspection conveying line and production line

Abstract

The utility model belongs to the technical field of manufacturing of household appliance parts, and discloses a spot check conveying line and a production line. The sampling inspection conveying line is perpendicularly arranged between a stamping line and a riveting line and comprises a conveying mechanism and a carrying disc, the conveying mechanism extends in the first direction and is provided with a feeding and discharging area and a sampling inspection area which are arranged in the first direction in a spaced mode, and the carrying disc is arranged on the conveying mechanism and provided with a containing position used for bearing stamping parts. The conveying mechanism is used for conveying the carrying disc in the first direction so that the carrying disc can drive the stamping parts on the carrying disc to reciprocate between the feeding and discharging area and the sampling inspection area. According to the casual inspection conveying line, during casual inspection, the stamping line and the riveting line do not need to be stopped, stamping parts which do not need casual inspection only need to be subjected to normal machining procedures, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing household appliance parts, in particular to a sampling inspection conveyor line and a production line. Background Art

[0002] Components such as doors in household appliances like refrigerators and freezers are made of sheet metal. During sheet metal processing, the sheet metal is first stamped on a press line to form a stamped part, which is then transferred to a riveting line for riveting. A robot is installed between the press line and the riveting line to transfer the stamped parts from the press line to the riveting line, allowing for repeated loading and unloading.

[0003] After stamping, some stamped parts often need to be manually spot-checked for appearance defects. In existing technology, when spot checks are required, the usual practice is that when a robot transfers the stamped parts to a riveted line, an operator picks up the stamped parts from the riveted line for spot checks. If the parts pass the spot checks, they are placed back on the riveted line. However, production safety requirements dictate that the equipment must be shut down when an operator approaches it. Therefore, the entire production line must be stopped for spot checks, which reduces production efficiency.

[0004] Therefore, there is an urgent need to provide a sampling inspection conveyor line and production line to solve the above problems. Utility Model Content

[0005] One purpose of the utility model is to provide a random inspection conveyor line, which can realize random inspection of stamping parts without stopping the line, thereby improving production efficiency.

[0006] Another object of the present invention is to provide a production line that can realize random inspection of stamping parts without stopping the line, thereby improving production efficiency.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] The sampling inspection conveyor line is vertically arranged between the stamping line and the riveting line, and the sampling inspection conveyor line includes:

[0009] A conveying mechanism extending along a first direction and having loading and unloading areas and sampling areas spaced apart along the first direction;

[0010] A carrier is arranged on the conveying mechanism and has a placement position for carrying stamping parts. The conveying mechanism is used to transport the carrier along the first direction so that the carrier can drive the stamping parts thereon to move back and forth between the loading and unloading area and the sampling area.

[0011] As an optional solution, two carriers are provided on the conveying mechanism, namely a first carrier and a second carrier. The conveying directions of the first carrier and the second carrier are opposite. The first carrier can be raised and lowered on the conveying mechanism so that the first carrier can be lowered to the bottom of the second carrier for avoidance during transportation.

[0012] As an optional solution, a lifting assembly is provided at the bottom of the first carrier plate, and the lifting assembly includes a lifting drive member and a mounting plate. The mounting plate is fixedly connected to the conveying mechanism, and the lifting drive member is fixedly connected to the mounting plate. The first carrier plate is connected to the output end of the lifting drive member, and the lifting drive member is used to drive the first carrier plate to rise and fall.

[0013] As an optional solution, the lifting assembly also includes a guide rod and a guide sleeve, the guide sleeve is arranged on the mounting plate, one end of the guide rod is fixedly connected to the first carrier plate, and the other end passes through the guide sleeve and slides with the guide sleeve.

[0014] As an optional solution, the conveying mechanism includes:

[0015] Bracket;

[0016] A conveying drive member is fixedly connected to one end of the bracket, wherein the output end of the conveying drive member is connected to a transmission shaft, and the conveying drive member can drive the transmission shaft to rotate;

[0017] A first pulley and a second pulley are spaced apart along the first direction, the first pulley is connected to the transmission shaft, and the second pulley is rotatably connected to the bracket;

[0018] The conveyor belt is wound around the outer circumference of the first pulley and the second pulley and is tensioned by the first pulley and the second pulley. The carrier is connected to the conveyor belt.

[0019] As an optional solution, the conveyor belt includes an upper belt and a lower belt, the second carrier plate is fixedly connected to the upper belt, and the mounting plate is fixedly connected to the lower belt.

[0020] As an optional solution, a positioning component is provided on the carrier plate, and the positioning component includes:

[0021] A plurality of fixing pins are fixedly arranged on the carrier plate at intervals along the edge of the placement position;

[0022] A plurality of movable pins are arranged on the carrier plate at intervals along the edge of the placement position and are arranged opposite to the corresponding fixed pins. The carrier plate is provided with long holes at positions corresponding to the movable pins, and the movable pins are inserted into the long holes.

[0023] A linear drive component is arranged on the bottom side of the carrier and its output end is connected to the corresponding movable pin. The linear drive component can drive the movable pin to move along the long hole toward the direction close to the fixed pin, so that the movable pin and the fixed pin can jointly clamp the convex edge of the stamping part.

[0024] As an optional solution, the placement position is square, and the positioning components are arranged at two adjacent edges of the placement position.

[0025] As an optional solution, a sensor is provided on the carrier plate, and the sensor is used to detect whether the stamping part is in the placement position and whether the posture of the stamping part is correct.

[0026] Production line, including:

[0027] The punching line and the riveting line both extend along a second direction, the second direction being perpendicular to the first direction;

[0028] The above-mentioned sampling inspection conveyor line is arranged between the stamping line and the riveting line, and the loading and unloading areas of the sampling inspection conveyor line are adjacent to the stamping line and the riveting line;

[0029] The robot is used to transfer the stamping parts on the stamping line to the carrier, and to transfer the stamping parts on the carrier after random inspection to the riveting line.

[0030] Beneficial effects of the utility model:

[0031] The utility model provides a random inspection conveyor line, which is vertically arranged between the stamping line and the riveting line. When it is necessary to conduct random inspection of stamped parts after stamping, the stamped parts to be inspected on the stamping line are placed on a carrier plate located in the loading and unloading area of ​​the conveying mechanism, and the stamped parts to be inspected are loaded. Then the conveying mechanism transports the carrier plate to the random inspection area for manual random inspection. After the random inspection is qualified, the conveying mechanism transports the carrier plate back to the loading and unloading area for unloading the stamped parts after random inspection, and transfers the stamped parts after random inspection to the riveting line for riveting. The random inspection conveyor line provided by the utility model does not need to stop the stamping line and the riveting line during random inspection, and the stamped parts that do not need to be inspected can undergo normal processing, thereby improving production efficiency.

[0032] The utility model also provides a production line. By setting the above-mentioned sampling inspection conveyor line, during the sampling inspection, the stamping line and the riveting line do not need to be stopped, and the stamping parts that do not need to be sampled can be processed normally, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of the production line provided by the utility model;

[0034] Figure 2 This is a structural diagram of the sampling inspection conveyor line provided by the utility model;

[0035] Figure 3 It is a structural diagram of the conveying mechanism provided by the utility model;

[0036] Figure 4 This is a schematic diagram of the cooperation between the first carrier plate and the lifting assembly provided by the present invention;

[0037] Figure 5 It is a structural schematic diagram of the carrier provided by the utility model.

[0038] In the picture:

[0039] 100, random inspection conveyor line; 101, loading and unloading area; 102, random inspection area; 200, stamping line; 300, riveting line; 400, robot; 500, stamping parts;

[0040] 10. Conveying mechanism; 11. Bracket; 12. Conveying drive member; 13. Transmission shaft; 14. First pulley; 15. Second pulley; 16. Conveyor belt; 161. Upper belt; 162. Lower belt; 17. First guide rail; 18. Second guide rail;

[0041] 20. Carrying plate; 21. First carrying plate; 211. Placement position; 212. Long hole; 213. Avoidance hole; 22. Second carrying plate; 23. Lifting assembly; 231. Lifting drive member; 232. Mounting plate; 233. Guide rod; 234. Guide sleeve;

[0042] 30. Positioning assembly; 31. Fixed pin; 32. Moving pin; 33. Linear drive member; 34. Connecting plate;

[0043] 40. Sensor. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0045] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0048] This embodiment provides a production line for producing and processing sheet metal parts such as doors of household appliances such as refrigerators and freezers. Figure 1 As shown, the production line mainly includes a stamping line 200, a riveting line 300, and a robot 400. The stamping line 200 is used to stamp sheet metal into stamping parts 500 of the desired shape and size. The riveting line 300 is used to perform the riveting process on the stamping parts 500 to ultimately form the desired sheet metal parts. The robot 400 is used to transfer the stamping parts 500 from the stamping line 200 to the riveting line 300 for repeated loading and unloading. The stamping line 200 and the riveting line 300 are conveyor lines for stamping and riveting, respectively. Their specific structures and working principles belong to the prior art and will not be repeated here.

[0049] In the prior art, after stamping, it is usually necessary to conduct manual spot checks on certain stamping parts 500 to check whether there are any appearance defects. The usual practice is: when the robot 400 transfers the stamping parts 500 to the rivet line 300, the operator picks up the stamping parts 500 on the rivet line 300 for spot checks, and then puts them back on the rivet line 300 after passing the spot checks. However, the safety requirements of the production line stipulate that the equipment must be shut down when the operator approaches the equipment. Therefore, the entire line needs to be stopped for spot checks, which will lead to reduced production efficiency.

[0050] In order to solve the above problems, Figure 1 As shown, the production line provided in this embodiment further includes a sampling conveyor line 100, which is vertically arranged between the stamping line 200 and the riveting line 300, that is, the sampling conveyor line 100 extends along a first direction (X-axis direction), and the stamping line 200 and the riveting line 300 both extend along a second direction (Y-axis direction), and the second direction is perpendicular to the first direction. Specifically, as Figure 2 As shown, the sampling conveyor line 100 includes a conveying mechanism 10 and a carrier 20. The conveying mechanism 10 extends along a first direction and has a loading and unloading area 101 and a sampling area 102 spaced apart along the first direction. The loading and unloading area 101 is adjacent to the stamping line 200 and the riveting line 300. The carrier 20 is arranged on the conveying mechanism 10 and is provided with a placement position 211 for carrying the stamping parts 500. The conveying mechanism 10 is used to convey the carrier 20 along the first direction so that the carrier 20 can drive the stamping parts 500 thereon to move back and forth between the loading and unloading area 101 and the sampling area 102. In addition to being able to transfer stamping parts 500 that do not need to be sampled directly from the stamping line 200 to the riveting line 300, the robot 400 can also transfer stamping parts 500 to be sampled on the stamping line 200 to the carrier 20, and transfer stamping parts 500 that have been sampled on the carrier 20 to the riveting line 300.

[0051] For the stamping parts 500 that do not need to be inspected, the robot 400 directly transfers them from the stamping line 200 to the riveting line 300 for riveting operations. When a stamping part 500 needs to be inspected, the robot 400 places the stamping part 500 to be inspected on the stamping line 200 on the carrier 20 located in the loading and unloading area 101 on the conveying mechanism 10, and loads the stamping part 500 to be inspected. Then the conveying mechanism 10 conveys the carrier 20 to the inspection area 102 for manual inspection. After the inspection is qualified, the conveying mechanism 10 transports the carrier 20 and the stamping parts 500 thereon back to the loading and unloading area 101, and the robot 400 transfers the inspected stamping parts 500 to the riveting line 300 for riveting. If the inspection fails, the unqualified products are directly stored separately, and the conveying mechanism 10 returns the empty carrier 20. In summary, by setting up the above-mentioned sampling inspection conveyor line 100, during sampling inspection, the stamping line 200 and the riveting line 300 do not need to stop the line, and the stamping parts 500 that do not need to be sampled can undergo normal processing procedures, thereby improving production efficiency.

[0052] It should be noted that the sampling area 102 is a safe operating area, and a grating is set in the safe operating area. When the stamping parts 500 to be sampled arrive at the sampling area 102, the operator can walk to the grating range of the safe operating area to stop the sampling conveyor line 100, and then the operator conducts a sampling inspection on the stamping parts 500. After the sampling inspection is qualified, the stamping parts 500 are placed back in the placement position 211 of the carrier 20. The operator exits the safety grating range and presses two start buttons at the same time to start the sampling conveyor line 100 for transportation. Therefore, during the sampling inspection, the sampling conveyor line 100 only needs to be temporarily stopped, and the stamping line 200 and the riveting line 300 do not need to be stopped. The stamping parts 500 that do not need to be sampled can undergo normal processing procedures, thereby improving production efficiency.

[0053] In addition, the sampling inspection conveyor line 100 can also realize the function of loading and unloading when the stamping line 200 or the riveting line 300 stops. For example, when the riveting line 300 stops due to a problem but the stamping line 200 is working normally, the sampling inspection conveyor line 100 can realize the unloading of the stamping parts 500 on the stamping line 200, so that the stamping line 200 can work normally; when the stamping line 200 stops due to a problem but the riveting line 300 is working normally, the sampling inspection conveyor line 100 can realize the loading of the stamping parts 500 on the riveting line 300, so that the riveting line 300 can work normally, thereby minimizing the number of equipment shutdowns, improving production efficiency, and ensuring product stability.

[0054] In an optional embodiment, if Figure 2 and Figure 3As shown, the conveying mechanism 10 includes a bracket 11, a conveying drive member 12, a first pulley 14, a second pulley 15 and a conveyor belt 16. The conveying drive member 12 is fixedly connected to one end of the bracket 11. The conveying drive member 12 can be a motor, and its output end is connected to a transmission shaft 13. The conveying drive member 12 can drive the transmission shaft 13 to rotate; the first pulley 14 and the second pulley 15 are arranged at intervals along the first direction, the first pulley 14 is connected to the transmission shaft 13, and the second pulley 15 is rotatably connected to the bracket 11; the conveyor belt 16 is wrapped around the outer circumference of the first pulley 14 and the second pulley 15, and is jointly tensioned by the first pulley 14 and the second pulley 15, and the carrier 20 is connected to the conveyor belt 16. The conveyor drive member 12 rotates the transmission shaft 13, which in turn rotates the first pulley 14. The combined tension of the first and second pulleys 14, 15, drives the conveyor belt 16 to move horizontally, thereby driving the carrier plate 20 thereon to move horizontally. Through the forward and reverse rotation of the motor, the carrier plate 20 can drive the stamping parts 500 thereon to move back and forth between the loading and unloading area 101 and the sampling area 102. By adopting this type of belt drive method, the transmission structure is simple, the transmission ratio is accurate, the efficiency is high, and the noise is low. It cooperates with the motor to achieve precise transmission and positioning.

[0055] like Figure 2 As shown, the conveying mechanism 10 includes two sets of first pulleys 14, second pulleys 15 and conveyor belts 16. The two sets of structures are arranged at intervals along the Y-axis direction. The carrier 20 is simultaneously connected to the conveyor belts 16 on both sides to achieve stable transmission of the carrier 20.

[0056] In an optional embodiment, if Figure 2 As shown, the conveying mechanism 10 is provided with two carriers 20, namely a first carrier 21 and a second carrier 22. The first carrier 21 and the second carrier 22 are conveyed in opposite directions. The first carrier 21 is arranged on the conveying mechanism 10 in a liftable manner so that the first carrier 21 can be lowered below the second carrier 22 during conveyance to avoid the first carrier 21. When the first carrier 21 is located in the loading and unloading area 101, the second carrier 22 is located in the sampling inspection area 102. When the first carrier 21 is in the sampling inspection area 102, the second carrier 22 is located in the loading and unloading area 101.

[0057] Combine Figure 1 and Figure 2, taking the initial state where the first carrier 21 is located in the loading and unloading area 101 and the second carrier 22 is located in the sampling inspection area 102 as an example, when sampling inspection is required, the first carrier 21 is in an upward state, and the robot 400 will first place the stamping parts 500 to be inspected on the stamping line 200 on the first carrier 21, and then the first carrier 21 descends, and the conveying drive part 12 is started to transport the first carrier 21 from the loading and unloading area 101 to the sampling inspection area 102 along the positive direction of the X-axis for manual sampling inspection. At the same time, the second carrier 22 is transported from the sampling inspection area 102 to the loading and unloading area 101 along the negative direction of the X-axis to wait for the loading of the stamping parts 500 to be inspected. During the conveying process, the first carrier 21 and the second carrier 22 are conveyed alternately, and the first carrier 21 always passes through the lower side of the second carrier 22. The two do not interfere with each other, which improves the transportation efficiency.

[0058] Further, if Figure 4 As shown, a lifting assembly 23 is provided at the bottom of the first carrier 21. The lifting assembly 23 includes a lifting drive 231 and a mounting plate 232. The mounting plate 232 is fixedly connected to the conveyor belt of the conveying mechanism 10. The lifting drive 231 is fixedly connected to the mounting plate 232. The first carrier 21 is connected to the output end of the lifting drive 231, and the lifting drive 231 is used to drive the first carrier 21 to rise and fall. When the first carrier 21 needs to be transported, the output end of the lifting drive 231 retracts, driving the first carrier 21 to descend. The lifting drive 231 can be a cylinder. The cylinder has a simple structure, is easy to install and maintain, moves smoothly, has a fast response speed, and can achieve a smooth lifting effect.

[0059] In an optional embodiment, if Figure 4 As shown, the lifting assembly 23 also includes guide rods 233 and guide sleeves 234. The guide sleeves 234 are disposed at the four corners of the mounting plate 232. The guide rods 233 are disposed at the four corners of the first carrier plate 21. One end of the guide rod 233 is fixedly connected to the first carrier plate 21, and the other end passes through the guide sleeve 234 and slidably engages with the guide sleeve 234. When the lifting drive 231 drives the first carrier plate 21 to rise or fall, the first carrier plate 21 can drive the guide rods 233 to slide along the guide sleeve 234, thereby guiding the movement of the first carrier plate 21 and achieving smooth lifting.

[0060] Further, if Figure 2 and Figure 3As shown, each conveyor belt 16 comprises an upper belt 161 and a lower belt 162. The upper and lower belts 161, 162 move in opposite directions. The second carrier tray 22 is fixedly connected to the upper belt 161, and the mounting plate 232 is fixedly connected to the lower belt 162. This arrangement ensures that the first carrier tray 21 and the second carrier tray 22 move in opposite directions, thereby achieving alternating conveyance. The width of the second carrier tray 22 along the Y-axis is greater than the spacing between the two conveyor belts, while the width of the first carrier tray 21 along the Y-axis is less than the spacing between the two conveyor belts, allowing the first carrier tray 21 to descend between the two conveyor belts 16 to the underside of the second carrier tray 22.

[0061] like Figure 3 As shown, the conveying mechanism 10 also includes a first guide rail 17 and a second guide rail 18, both of which extend along the X-axis direction. The first guide rail 17 is arranged on the upper side of the bracket 11, and the second guide rail 18 is arranged on the lower side of the bracket 11. The second carrier 22 slides with the first guide rail 17 through a slider, and the mounting plate 232 slides with the second guide rail 18 through a slider, thereby realizing smooth transportation of the first carrier 21 and the second carrier 22.

[0062] It should be noted that the structures on the first carrier plate 21 and the second carrier plate 22 are exactly the same. The following description of other structures on the carrier plate 20 takes the first carrier plate 21 as an example in the drawings. The second carrier plate 22 is exactly the same and will not be repeated.

[0063] In an optional embodiment, at least two placement positions 221 are provided on the carrier 20, so that at least two stamping parts 500 can be placed on one carrier 20, thereby improving the efficiency of random inspection. Figure 5 As shown, the carrier plate 20 is provided with two placement positions 221, and each placement position 221 can be placed on a stamping part 500. In other embodiments, three, four or more placement positions 221 can be provided on a carrier plate 20, which is not specifically limited here.

[0064] It should be noted that Figure 5 The dotted part is only a simple diagram of the stamping part 500. Taking the stamping part 500 processed into the door body of the refrigerator as an example, the actual stamping part 500 is a square concave shell structure, and the four sides of the stamping part 500 are thin-walled convex edges. The stamping part 500 is placed on the placement position 221 of the carrier 20 with the opening facing downward.

[0065] In an optional embodiment, if Figure 4 and Figure 5As shown, a positioning assembly 30 is provided on the carrier 20, and the positioning assembly 30 includes a linear drive member 33, a plurality of fixed pins 31, and a plurality of movable pins 32. The plurality of fixed pins 31 are fixedly provided on the carrier 20 at intervals along the edge of the placement position 211; the plurality of movable pins 32 are provided on the carrier 20 at intervals along the edge of the placement position 211 and are arranged opposite to the corresponding fixed pins 31. The carrier 20 has elongated holes 212 at positions corresponding to the movable pins 32, and the movable pins 32 are inserted into the elongated holes 212; the linear drive member 33 is provided on the bottom side of the carrier 20 and its output end is connected to the corresponding movable pin 32. The linear drive member 33 can drive the movable pin 32 to move along the elongated hole 212 toward the fixed pin 31, so that the movable pin 32 and the fixed pin 31 can jointly clamp the flange of the stamping part 500. Among them, the linear drive member 33 can be a cylinder. The cylinder has a simple structure, is easy to install and maintain, moves smoothly, has a fast response speed, and can achieve a smooth pushing effect.

[0066] In the initial state, the linear drive member 33 is in a retracted state, and there is a gap between the movable pin 32 and the fixed pin 31. When the stamping part 500 is placed in the placement position, the convex edge of the stamping part 500 is placed in the gap between the movable pin 32 and the fixed pin 31, and the outer side of the convex edge of the stamping part 500 is pressed against multiple fixed pins 31 for pre-positioning. Then, the output end of the linear drive member 33 is extended, so that the movable pin 32 moves along the long hole 212 in the direction close to the fixed pin 31, and finally, together with the fixed pin 31, the convex edge of the stamping part 500 is clamped to achieve the clamping positioning of the stamping part 500.

[0067] In an optional embodiment, if Figure 5 As shown, the number of fixed pins 31 can be greater than the number of movable pins 32, and the movable pins 32 can correspond one-to-one with several of the fixed pins 31, which can save the number of movable pins 32. In other embodiments, the number of fixed pins 31 can also be equal to the number of movable pins 32, and the movable pins 32 can correspond one-to-one with each fixed pin 31, as long as the clamping and positioning of the stamping part 500 can be achieved.

[0068] In an optional embodiment, if Figure 5 As shown, the placement position 211 is square, and the positioning assemblies 30 are located on two adjacent edges of the placement position 211. In other words, the placement position 211 can be understood as having four sides, with the aforementioned fixing pins 31 and movable pins 32 located only on two adjacent sides of the placement position 211. This arrangement allows the fixing pins 31 and positioning pins to position only two adjacent right-angled edges of the stamping part 500, making it compatible with a variety of different stamping part models 500 and providing greater versatility.

[0069] Further, if Figure 3 and Figure 4As shown, the movable pins 32 in the same row share a common linear drive member 33. Specifically, the output end of the linear drive member 33 is connected to a long connecting plate 34, and the movable pins 32 in the same row are fixed to the connecting plate 34. This arrangement can reduce the number of linear drive members 33 used, saving costs and installation space.

[0070] In an optional embodiment, if Figure 5 As shown, a sensor 40 is provided at the bottom of the carrier 20, and an avoidance hole 213 is opened on the carrier 20. The sensor 40 passes through the avoidance hole 213 and is flush with the surface of the carrier 20. The sensor 40 is used to detect whether there is a stamping part 500 in the placement position 211 and whether the position of the stamping part 500 is correct.

[0071] Specifically, if Figure 5 As shown, two spaced apart sensors 40 are provided on the carrier 20. The sensors 40 are specifically positioning contact sensors, and the two sensors 40 correspond to two different positions of the stamping part 500. Under normal circumstances, one of the sensors 40 faces the inner concave portion of the stamping part 500, and the sensor 40 does not contact the stamping part 500, so there is no signal. The other sensor 40 faces the flat portion of the stamping part 500, and the sensor 40 contacts the stamping part 500, so it can detect a signal. In this case, it indicates that there is a stamping part 500 in the placement position 211 and the position of the stamping part 500 is correct, which will trigger the linear drive member 33 to operate, clamp the stamping part 500, and at the same time, the lifting drive member 231 descends, and the conveying drive member 12 operates. If there is no stamping part 500 in the placement position 211, both sensors 40 will not output a signal. If the position of the stamping part 500 is inaccurate, the two sensors 40 will output other signals, and a prompt will be issued. Therefore, by providing the above-mentioned sensor 40, it is possible to detect whether there is a stamping part 500 in the placement position 211, and it can play a fool-proof role to avoid the stamping part 500 being placed upside down and causing obstruction of subsequent processes.

[0072] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Spot check conveyor line, characterized by: The sampling conveyor line is vertically arranged between the punching line (200) and the riveting line (300), and comprises: A conveying mechanism (10) extending along a first direction and having a loading and unloading area (101) and a sampling area (102) spaced apart along the first direction; A carrier plate (20) is arranged on the conveying mechanism (10) and is provided with a placement position (211) for carrying the stamping part (500). The conveying mechanism (10) is used to convey the carrier plate (20) along the first direction so that the carrier plate (20) can drive the stamping part (500) thereon to move back and forth between the loading and unloading area (101) and the sampling area (102).

2. The sampling inspection conveyor line according to claim 1, characterized in that: The conveying mechanism (10) is provided with two carriers (20), namely a first carrier (21) and a second carrier (22). The conveying directions of the first carrier (21) and the second carrier (22) are opposite. The first carrier (21) is movably arranged on the conveying mechanism (10) so that the first carrier (21) can be lowered to the bottom of the second carrier (22) for avoidance during conveyance.

3. The sampling inspection conveyor line according to claim 2, characterized in that: A lifting assembly (23) is provided at the bottom of the first carrier (21), and the lifting assembly (23) includes a lifting drive member (231) and a mounting plate (232). The mounting plate (232) is fixedly connected to the conveying mechanism (10), and the lifting drive member (231) is fixedly connected to the mounting plate (232). The first carrier (21) is connected to the output end of the lifting drive member (231), and the lifting drive member (231) is used to drive the first carrier (21) to rise and fall.

4. The sampling inspection conveyor line according to claim 3, characterized in that: The lifting assembly (23) further comprises a guide rod (233) and a guide sleeve (234), wherein the guide sleeve (234) is arranged on the mounting plate (232), one end of the guide rod (233) is fixedly connected to the first carrier (21), and the other end passes through the guide sleeve (234) and is slidably matched with the guide sleeve (234).

5. The sampling inspection conveyor line according to claim 3, characterized in that: The conveying mechanism (10) comprises: Bracket (11); A conveying drive member (12) is fixedly connected to one end of the bracket (11), and an output end of the conveying drive member (12) is connected to a transmission shaft (13), and the conveying drive member (12) can drive the transmission shaft (13) to rotate; A first pulley (14) and a second pulley (15) are spaced apart along the first direction, the first pulley (14) is connected to the transmission shaft (13), and the second pulley (15) is rotatably connected to the bracket (11); A conveyor belt (16) is wound around the outer circumference of the first pulley (14) and the second pulley (15), and is tensioned by the first pulley (14) and the second pulley (15), and the carrier plate (20) is connected to the conveyor belt (16).

6. The sampling inspection conveyor line according to claim 5, characterized in that: The conveyor belt (16) includes an upper belt (161) and a lower belt (162), the second carrier plate (22) is fixedly connected to the upper belt (161), and the mounting plate (232) is fixedly connected to the lower belt (162).

7. The sampling inspection conveyor line according to any one of claims 1 to 6, characterized in that: A positioning assembly (30) is provided on the carrier plate (20), and the positioning assembly (30) comprises: A plurality of fixing pins (31) are fixedly arranged on the carrier (20) at intervals along the edge of the placement position (211); A plurality of movable pins (32) are arranged on the carrier (20) at intervals along the edge of the placement position (211) and are arranged opposite to the corresponding fixed pins (31); a long hole (212) is opened on the carrier (20) at a position corresponding to the movable pin (32), and the movable pin (32) is inserted into the long hole (212); A linear drive member (33) is provided on the bottom side of the carrier (20) and its output end is connected to the corresponding movable pin (32). The linear drive member (33) can drive the movable pin (32) to move along the long hole (212) toward the direction close to the fixed pin (31), so that the movable pin (32) and the fixed pin (31) can jointly clamp the convex edge of the stamping part (500).

8. The sampling inspection conveyor line according to claim 7, characterized in that: The placement position (211) is square, and the positioning components (30) are arranged at adjacent two side edges of the placement position (211).

9. The sampling inspection conveyor line according to any one of claims 1 to 6, characterized in that: A sensor (40) is provided on the carrier plate (20), and the sensor (40) is used to detect whether the stamping part (500) is in the placement position (211) and whether the position and posture of the stamping part (500) is correct.

10. Production line, characterized in that, include: The punching line (200) and the riveting line (300) both extend along a second direction, the second direction being perpendicular to the first direction; The sampling conveyor line according to any one of claims 1 to 9 is arranged between the stamping line (200) and the riveting line (300), and the loading and unloading area (101) of the sampling conveyor line is adjacent to the stamping line (200) and the riveting line (300); The robot (400) is used to transfer the stamping parts (500) on the stamping line (200) to the carrier (20), and to transfer the stamping parts (500) on the carrier (20) after random inspection to the riveting line (300).

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