Detection device and detection system

Abstract

A detection device and a detection system relate to the technical field of detection. The detection device comprises a stamping mechanism and a detection assembly, and the stamping mechanism comprises an upper die and a lower die which are matched with each other; the detection assembly is arranged in the lower die and used for detecting whether stamping of the upper die relative to a target workpiece in the lower die reaches a set state or not; the target workpiece is stamped to reach a set state, and the detection assembly is in a first target state; if the target workpiece is punched and does not reach the set state, the detection assembly is in a second target state which is different from the first target state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to a detection device and a detection system. BACKGROUND

[0002] Due to looseness and wear of the stamping mechanism, the stamping mechanism often fails to reach the set position in the die stamping process, affecting the quality of the machine case and the normal production of the production line. Generally, the frequency of process sampling is increased, and the die is repaired and maintained in time after the problem is found to reduce losses; however, a certain amount of products have been produced when the problem is found, which wastes materials and increases manufacturing costs. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0004] The first aspect of the present application provides a detection device, comprising:

[0005] A stamping mechanism, the stamping mechanism comprising an upper die and a lower die cooperating with each other;

[0006] A detection assembly, the detection assembly being arranged in the lower die, and the detection assembly being configured to detect whether the stamping of the target workpiece by the upper die reaches a set state;

[0007] When the target workpiece is stamped to reach the set state, the detection assembly is in a first target state;

[0008] When the target workpiece is stamped to not reach the set state, the detection assembly is in a second target state, and the second target state is different from the first target state.

[0009] In some modified embodiments of the first aspect of the present application, the upper die is provided with a stamping head, the lower die is provided with a receiving hole corresponding to the position of the stamping head, and the detection assembly is arranged in the receiving hole to detect the stamping state of the target workpiece by the stamping head.

[0010] In some modified embodiments of the first aspect of the present application, the mounting position of the detection assembly has a target depth with the receiving surface of the lower die, and is configured to detect whether the stamping of the target workpiece reaches the set state.

[0011] In some modified embodiments of the first aspect of the present application, the lower die is provided with a containing groove for containing the target workpiece, the receiving hole is in communication with the containing groove, and the detection assembly is inserted in the receiving hole through a fixed part;

[0012] The fixed part is adaptively connected with the receiving hole.

[0013] In some modified embodiments of the first aspect of the present application, the detection assembly comprises:

[0014] The first conductive part is capable of moving between a first position and a second position.

[0015] The second conductive part is arranged at a position near the first conductive part.

[0016] The first conductive part is in the first position, the first conductive part and the second conductive part are electrically connected, and the detection assembly is in a second target state; the first conductive part is in the second position, the first conductive part and the second conductive part are disconnected, and the detection assembly is in a first target state.

[0017] In some modified embodiments of the first aspect of the application, the first conductive part comprises an elastic rod, the elastic rod is capable of stretching and contracting along its extension direction to move its end between the first position and the second position.

[0018] The second conductive part comprises a sleeve, the sleeve is sleeved outside the elastic rod, and an insulating layer is arranged between the sleeve and the elastic rod.

[0019] The first conductive part is in the first position, the elastic rod and the sleeve are in contact; the first conductive part is in the second position, the elastic rod and the sleeve are not in contact.

[0020] In some modified embodiments of the first aspect of the application, the first end of the elastic rod is provided with a first protrusion, the first protrusion is capable of contacting the sleeve when the elastic rod is contracted; the outside of the sleeve is provided with a second protrusion, the second protrusion is connected with the lower die.

[0021] In some modified embodiments of the first aspect of the application, the elastic rod comprises:

[0022] The connecting rod is arranged inside the sleeve;

[0023] The fixing member is connected with the connecting rod, the fixing member is arranged at the second end of the elastic rod, and is used for contacting the target workpiece;

[0024] The elastic member is connected with the fixing member at one end, and is connected with the sleeve at the other end.

[0025] The second aspect of the application provides a detection system, comprising a control device and a detection device, the detection device comprising:

[0026] The stamping mechanism comprises a upper die and a lower die which cooperate with each other;

[0027] The detection assembly is arranged in the lower die, and is used for detecting whether the stamping of the target workpiece in the upper die relative to the lower die reaches a set state;

[0028] When the target workpiece is stamped to reach the set state, the detection assembly is in a first target state;

[0029] The target workpiece is not punched to a set state, the detection assembly is in a second target state, and the second target state is different from the first target state;

[0030] The control device is connected with the detection device, and the control device controls a movement state of the upper die relative to the lower die based on a state of the detection assembly.

[0031] In some modified embodiments of the second aspect of the present application, further comprising:

[0032] A display device, the display device being connected with the control device, and the display device being used for displaying states of the control device and the detection device;

[0033] An alarm device, the alarm device being connected with the control device, and the alarm device being used for giving a prompt based on the detection device. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and other objects, features and advantages of the present application will become readily apparent from the detailed description that follows, read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are shown by way of example, not limitation, in which like reference numerals refer to like elements, in which:

[0035] Figure 1 A structural schematic diagram of a detection device is schematically shown;

[0036] Figure 2 A structural schematic diagram of a detection assembly of a detection device is schematically shown;

[0037] Figure 3 A partial internal structural schematic diagram of a detection assembly of a detection device is schematically shown;

[0038] Figure 4 A structural schematic diagram of an open die state of a detection device is schematically shown;

[0039] Figure 5 A partial structural schematic diagram of a lower die of a detection device is schematically shown;

[0040] Figure 6 A structural schematic diagram of a detection system is schematically shown.

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] 1, stamping mechanism; 11, upper die; 12, lower die; 2, detection assembly; 21, elastic rod; 211, fixing piece; 212, elastic piece; 213, connecting rod; 214, first protrusion; 22, sleeve; 23, second protrusion; 24, insulating layer; 3, fixing part; 4, bearing hole; 5, accommodating groove; 6, stamping head; 7, target workpiece; 8, control device; 9, display device; 10, alarm device. DETAILED DESCRIPTION

[0043] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thoroughly and completely understood, and will fully convey the scope of the present disclosure to those skilled in the art.

[0044] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the common meanings understood by those skilled in the art to which the present application belongs.

[0045] The present application provides a detection device and a detection system, which can timely find the situation that the workpiece is not stamped in place, avoid wasting materials, and improve the manufacturing cost.

[0046] Embodiment 1

[0047] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a detection device includes a stamping mechanism 1 and a detection assembly 2, the stamping mechanism 1 includes an upper die 11 and a lower die 12 that cooperate with each other; the detection assembly 2 is arranged in the lower die 12, and the detection assembly 2 is used to detect whether the stamping of the upper die 11 relative to a target workpiece 7 in the lower die 12 reaches a set state; when the target workpiece 7 is stamped to reach the set state, the detection assembly 2 is in a first target state; when the target workpiece 7 is stamped and does not reach the set state, the detection assembly 2 is in a second target state, and the second target state is different from the first target state.

[0048] Stamping refers to a process of applying external force to materials by using dies installed on a press machine, so that the materials are plastically deformed or separated, thereby obtaining parts with certain shapes, sizes and properties. The stamping mechanism 1 is the core device for realizing this process, which cooperates with the upper die 11 and the lower die 12 (also known as a die seat or a female die) to perform shaping, shearing, stretching and other operations on the metal plate placed between them under the action of pressure, so as to manufacture parts with specific shapes and size accuracy.

[0049] The target workpiece 7 refers to those materials that can be plastically deformed without breaking during the stamping process and can maintain the final desired shape. These materials can be metals, but also some non-metallic materials such as composites and plastics. For metal materials, they should have sufficient ductility to allow the necessary deformation during stamping without breaking. Specifically, the target workpiece 7 can be a plate structure, or a strip or block structure, as long as it meets the stamping conditions, and the specific structure and shape of the target workpiece 7 are not limited.

[0050] Specifically, the stamping mechanism 1 can be a mechanical punch press, which is one of the most traditional stamping equipment, mainly through the mechanical structure of crankshaft, connecting rod, etc. to convert the rotary motion of the motor into up-down reciprocating motion, to realize the stamping processing of metal plate. The mechanical punch press has the characteristics of high-speed processing, convenient maintenance, and does not need to worry about the leakage problem of hydraulic system. In particular, according to the sliding mechanism of the pressurizing part, the mechanical punch press can also be subdivided into crankshaft type, toggle type and connecting rod type and other models. The stamping mechanism 1 can also be a hydraulic punch press, which uses a pump to deliver oil or water to the cylinder, and flexibly performs plastic processing by controlling the hydraulic pressure. One of the significant advantages of the hydraulic punch press is that it can adjust the load of the processed object according to the material and thickness, which is suitable for processing long-sized objects, and can also realize high-precision, high-speed digital control. The stamping mechanism 1 can also be a pneumatic punch press, which uses compressed air as a power source, suitable for small or lightweight stamping operations. This type of punch press has the advantages of simple structure and low cost.

[0051] The upper die 11 refers to the half die installed on the movable part of the press, which is connected with the slide of the press and moves up and down with the slide during work. The upper die 11 contains forming parts, guide parts, ejection mechanisms and other components inside, which are used to directly contact and apply pressure to the material placed below. Specifically, the upper die 11 can be a forming upper die, which is mainly used to make the material plastically deform to form the required three-dimensional shape. For example, in the drawing process, the forming upper die will gradually draw the flat plate material into the cavity of the lower die, and finally form a through hole or a half hole. The upper die 11 can also be a shearing upper die, which is used to cut out parts or holes of a specific shape from the plate. This type of upper die 11 has sharp edges and can complete the precise shearing operation in one stroke. The upper die 11 can also be a bending upper die, which is specially designed to bend the plate to a certain angle. The shape of the bending upper die depends on the required angle and radius of curvature. The upper die 11 can also be a composite upper die, which can complete multiple processes such as blanking, bending, drawing, etc. in one stroke. This type of upper die structure is more complex, but can significantly improve production efficiency.

[0052] The lower die 12 is the half of the die mounted on the fixed part 3 of the press, and is fixed on the worktable of the press. It can provide a stable support surface and cooperate with the upper die 11 to complete the processing of the material. Specifically, the lower die 12 can be a forming lower die matched with the forming upper die, used to receive the material pressed by the upper die and provide the reaction force required for the material forming. The shape of the cavity of the forming lower die determines the shape of the final product. The lower die 12 can also be a shearing lower die matched with the shearing upper die, used to cut parts or holes of a specific shape from the plate. The shearing lower die has a groove or opening matched with the upper die to facilitate the separation of the material. The lower die 12 can also be a bending lower die used to support the plate to be bent and provide the necessary reaction force for the bending process. The design of the bending lower die needs to consider the elastic recovery characteristics of the material to ensure the accuracy of the angle of the finished product. The lower die 12 can also be a compound lower die capable of working with the compound upper die to complete multiple processes in one stroke. The structure of such a lower die is relatively complex, but it helps to improve production efficiency and product quality.

[0053] The detection assembly 2 is used to ensure that the stamping process of the upper die 11 relative to the target workpiece 7 in the lower die 12 reaches the set state. Specifically, the detection assembly 2 can be a position sensor for detecting the position of the upper die 11 or the lower die 12, ensuring that they can accurately reach the predetermined position in each stroke. More specifically, the detection assembly 2 can be a linear encoder that can accurately measure the vertical displacement of the upper die 11, and through the feedback signal to the control system, it can achieve precise control of the stamping force and stroke. The detection assembly 2 can also be a proximity switch that triggers a signal when the die reaches a specific position, commonly used to detect limit positions such as top and bottom dead centers. The detection assembly 2 can also be a laser range finder that measures distance using a laser beam, suitable for high-precision applications, and can monitor the relative position change between the dies in real time. The detection assembly 2 can also be a vision detection system that uses a camera and image processing technology to detect the workpiece online, checking whether the size, shape, surface quality and other characteristics meet the requirements. More specifically, the vision detection system can include a high-resolution camera and image processing software. The high-resolution camera captures high-definition images of the workpiece, providing clear data sources for subsequent analysis. Algorithms are used to identify and quantify features in the image, such as edges, apertures, contours, etc., to automatically determine whether the product is qualified. Once unqualified products are found, the system can immediately issue an alarm and take appropriate measures, such as stopping the production line or marking defective products. The detection assembly 2 can also be a grating ruler for accurately measuring the relative displacement between the dies, ensuring the consistency of the stamping depth and stroke. The measurement accuracy of the grating ruler can reach microns, which is very suitable for precision stamping operations. It uses optical reading method and is not affected by electromagnetic field, with stable and reliable data. Non-contact measurement reduces mechanical wear and prolongs service life. It ensures the safe operation of the stamping equipment and prevents accidents. The detection assembly 2 can also be a mechanical limit switch that physically touches the switch when the die reaches the limit position to cut off the power or issue a warning. The detection assembly 2 can also be an optical limit switch, which is a non-contact switch that detects the position of an object by blocking or reflecting a light beam.

[0054] The set state refers to the predetermined condition or standard that the workpiece reaches during the stamping process. These conditions ensure that each stamping operation is completed accurately according to design requirements, thereby ensuring product quality and production efficiency. Specifically, the set state can be a position setting, such as a stamping depth, which can control the distance of the upper die 11 downward movement to ensure that it reaches the predetermined stamping depth to achieve the required material deformation or cutting. When the target workpiece 7 is stamped to reach the set state, the detection assembly 2 enters the first target state, which means that the monitoring parameter is within the predetermined range, the stamping process meets the design requirements, and the product quality is qualified. For example, the detection assembly 2 is a position sensor or a vision sensor, which detects that the stamping depth reaches the set value, the position sensor accurately displays the relative position between the upper die 11 and the lower die 12, the stamping depth reaches the predetermined value, and the vision detection system captures the workpiece image showing that the size, shape, and surface quality meet the standard without obvious defects or deviations. If the target workpiece 7 is stamped and fails to reach the set state, the detection assembly 2 enters the second target state. This means that the monitoring parameter exceeds the predetermined range, the stamping process has deviations, and the product quality may not be qualified. For example, the detection assembly 2 is a position sensor or a vision sensor, which detects that the stamping depth does not reach the set value, the position sensor shows that the relative position between the upper die 11 and the lower die 12 has deviations, the stamping depth does not reach the predetermined value, or exceeds the limit position; the vision detection system captures the workpiece image showing that the size, shape, or surface quality does not meet the standard.

[0055] More specifically, when the detection assembly 2 enters the second target state, the system can immediately issue an alarm to remind the operator to check and correct the problem. The system may automatically stop the production line to prevent unqualified products from continuing to be produced, reducing waste and cost. Regardless of which target state, the detection assembly 2 will record relevant data for subsequent analysis and improvement of production processes. The system will automatically perform fault diagnosis based on the feedback information of the detection assembly 2 to help the operator quickly locate the problem.

[0056] The present disclosure sets the detection assembly 2 inside the lower die 12 and uses the detection assembly 2 to detect whether the stamping of the upper die 11 relative to the target workpiece 7 inside the lower die 12 reaches the set state, and makes the detection assembly 2 in the first target state when the target workpiece 7 is stamped to reach the set state, and in the second target state when the target workpiece 7 is stamped without reaching the set state, so that the worker can quickly find that the workpiece is not completely stamped open, avoiding waste of materials and improving manufacturing costs.

[0057] As Figure 1As shown, in some modified embodiments of the present application, the upper die 11 is provided with a punch head 6, the lower die 12 is provided with a receiving hole 4 corresponding to the position of the punch head 6, and the detection assembly 2 is arranged in the receiving hole 4 for detecting the punching state of the punch head 6 on the target workpiece 7. This arrangement can ensure that the detection assembly 2 can directly perceive the key parameters in the punching process, thereby providing accurate feedback information and ensuring the punching quality.

[0058] The punch head 6 is a component mounted on the upper die 11 and directly acts on the workpiece, responsible for transmitting pressure to the workpiece to cause plastic deformation or separation. The design of the punch head 6 depends on the specific punching process and may have different shapes, sizes and material properties. For example, the punch head 6 for cutting usually has a sharp edge, while the punch head 6 for forming may have a complex three-dimensional shape. The receiving hole 4 provided in the lower die 12 corresponds to the position of the punch head 6 and is used to receive the punch head 6 and provide support and positioning for the workpiece.

[0059] The receiving hole 4 is a hole-shaped structure matched with the punch head. The shape and size of the receiving hole 4 are accurately matched with the punch head 6 to ensure the alignment and cooperation of the two during the punching process, and the receiving hole 4 can also be designed with a guide structure inside to reduce the deviation and wear of the punch head 6. The detection assembly 2 can be installed at the bottom or side of the receiving hole 4 to directly contact or approach the punch head 6 and the workpiece to obtain the most accurate data for detecting whether the product punching hole is in place. Specifically, as shown in Figure 5 The receiving hole 4 can be a round hole that directly cooperates with the punch head through a vertical round hole. The receiving hole 4 can also be composed of multiple segments, the first segment is arranged at the top of the lower die 12 and cooperates with the punch head 6. The second segment is arranged at the middle position of the lower die 12 for placing the detection assembly 2, and the third segment is arranged at the bottom position of the lower die 12 for cooperating with the fixing part 3 to fix the detection assembly 2 in the receiving hole 4. More specifically, as shown in Figure 1 and Figure 4 as shown,

[0060] More specifically, the punch head 6 can be used to punch a half hole, and corresponding detection assemblies are arranged at positions corresponding to the half hole. A probe with power loop on and off function is used, and the mold block is made and matched with the probe, then the assembly is matched to the mold half structure position, and the lead wire is connected with the control electric box. For example, the probe installation position is 1.3mm deep from the surface of the mold, and the punching depth reaches 1.3mm, so the probe will generate a disconnected signal. If the cutting depth is less than 1.3mm, no signal will be generated. This signal is collected and output by the PLC (Programmable Logic Controller), relay and machine control panel.

[0061] In some modified embodiments of the present application, the installation position of the detection assembly 2 has a target depth relative to the receiving surface of the lower die 12, which is used to detect whether the product stamping surface is in place so as to detect whether the stamping of the target workpiece 7 reaches the set state. Specifically, the stamping surface refers to a surface with a specific geometric shape formed on the side away from the stamping head 6 during the stamping process, where the material is subjected to plastic deformation under the pressure applied by the die. Specifically, the stamping surface can be a flat surface, which is the simplest type of stamping surface, used to form a half-punching, suitable for workpieces that need to maintain flatness, such as metal plates, decorative panels, etc. The stamping surface can also be a curved surface, which is a surface with a certain curvature formed by bending operation, which can be unidirectional bending or multidirectional bending, widely used in automobile body parts, housings, etc. The stamping surface can also be a drawing surface, which is a hollow protruding structure surface formed by drawing operation, and the hollow protruding structure can have a circular, rectangular or other complex cross-section, which can be used for container parts such as cups, cans, fuel tanks, etc. The stamping surface can also be a forming surface, which is a specific shape formed by forming operation, which can include arched, corrugated, stepped and other complex shapes.

[0062] Specifically, the detection assembly can be provided in one receiving hole 4, corresponding to the lowest point of the stamping surface. As shown in Figure 1 and Figure 4 , the stamping surface is an inclined surface, and the detection assembly is arranged at a position corresponding to the lowest point of the inclined surface. Specifically, as shown in Figure 5 , the receiving hole further includes a mounting hole arranged at the bottom thereof, and the mounting hole is arranged near the side of the lowest point of the stamping inclined surface, so that after the fixing part is installed in the mounting hole, the detection assembly is arranged at a position corresponding to the lowest point of the stamping inclined surface.

[0063] The detection assembly can also be provided in multiple receiving holes 4, and the multiple detection assemblies correspond to different positions of the stamping surface, as long as any detection assembly is in the second target state, it can be determined that the stamping is not in place, so as to detect the balance of the stamping, and further improve the accuracy of the detection.

[0064] The target depth can be a fixed target depth, which means that the detection assembly 2 is installed in the receiving hole 4 of the lower die 12, and the installation position has a fixed and pre-set target depth relative to the receiving surface. The installation and debugging of the fixed target depth are relatively simple, and are suitable for most conventional stamping processes. By accurately setting the target depth, consistent results can be ensured for each stamping, which is suitable for occasions with fixed stamping depth and batch production. Specifically, the displacement sensor can be installed at the bottom of the receiving hole 4 to directly measure the depth of the stamping head 6 entering the receiving hole 4, ensuring that the stamping depth meets the set value. The target depth can also be an adjustable target depth, which means that the installation position of the detection assembly 2 can be adjusted according to different stamping tasks to adapt to different stamping depth requirements. The adjustable target depth can quickly switch the stamping depth of different products, which is suitable for multi-variety and small-batch production. The adjustable target depth can adjust the target depth according to the workpiece thickness and material properties to improve production efficiency and product quality. The adjustable target depth is suitable for production lines that need to frequently change products or have large changes in stamping depth, such as customized part processing. Multiple detection assemblies 2 can also be arranged in the receiving hole 4, each detection assembly 2 having a different target depth for simultaneously monitoring the stamping state of multiple key positions. The movement of the stamping head 6 at different positions can be detected simultaneously to ensure the uniformity and consistency of the entire stamping process. Through multi-point detection, potential problems can be detected earlier to reduce the generation of defective products. It is suitable for workpieces with complex shapes or occasions that require high-precision stamping.

[0065] As shown in Figure 1 In some modified embodiments of the present application, the lower die 12 is provided with a containing groove 5 for containing the target workpiece 7, the receiving hole 4 is in communication with the containing groove 5, and the detection assembly 2 is inserted into the receiving hole 4 through the fixed part 3; the fixed part 3 is adaptively connected with the receiving hole 4.

[0066] The accommodation groove 5 is used to place the target workpiece 7, ensuring that the workpiece maintains a stable position during the stamping process. The design of the accommodation groove 5 should consider the shape, size, and material properties of the workpiece to provide good support and positioning. The fixing part 3 refers to the structural part of the detection assembly 2 that is inserted and fixed in the receiving hole 4 of the lower die 12. It ensures that the detection assembly 2 does not loosen or shift during the stamping process through the adaptive connection with the receiving hole 4, thereby providing stable and reliable detection data. Specifically, the fixing part 3 can be square to adapt to a square receiving hole 4, or it can be circular to adapt to a circular receiving hole 4. The fixing part 3 can be threadedly connected with the receiving hole 4, with external threads on the fixing part 3 and internal threads in the receiving hole 4, allowing the detection assembly 2 to be securely fixed in the receiving hole 4 by rotating. The fixing part 3 can also use a snap connection, with the fixing part 3 having a spring buckle and the receiving hole 4 having a corresponding buckle slot, allowing the detection assembly 2 to be quickly installed and removed by pressing or rotating. The fixing part 3 and the receiving hole 4 can also use an interference fit, ensuring tight contact between the two through precise machining to prevent loosening. The fixing part 3 can also have locking screws or other locking mechanisms that can be further fixed after being inserted into the receiving hole 4, ensuring the stability of the detection assembly 2.

[0067] As shown in Figure 2 and Figure 3 In some modified embodiments of the present application, the detection assembly 2 includes a first conductive part and a second conductive part, the first conductive part being movable between a first position and a second position; the second conductive part being arranged at a position near the first conductive part; wherein the first conductive part is in the first position, the first conductive part and the second conductive part are electrically connected, and the detection assembly 2 is in a second target state; the first conductive part is in the second position, the first conductive part and the second conductive part are disconnected, and the detection assembly 2 is in a first target state. The detection assembly 2 includes a first conductive part and a second conductive part, and the relative position change of the two parts is used to determine whether the stamping process has reached the set state. Specifically, the first conductive part is movable between a first position and a second position, while the second conductive part is fixedly arranged near the first conductive part. According to the electrical connection state of the two, the detection assembly 2 can distinguish between two target states.

[0068] The first conductive part is the movable part of the detection assembly 2, which is associated with the movement of the stamping head 6 or the workpiece. The first conductive part can move between a first position and a second position, and the two positions correspond to different stamping states respectively. Specifically, the first conductive part should use materials with good electrical conductivity and wear resistance, such as copper, aluminum, or other metal alloys. The second conductive part is a stationary part fixedly arranged near the first conductive part, installed in the receiving hole 4 of the lower die 12, and forms an electrical connection or disconnection with the first conductive part for detecting the stamping state. The second conductive part should also use materials with good electrical conductivity to ensure stable conduction when in contact with the first conductive part.

[0069] The first position is a connected position where the first conductive part is in contact with the second conductive part and forms an electrical connection, at this time, the detection assembly 2 is in the second target state, indicating that the target workpiece 7 is not stamped to the set state. The second position is a disconnected position where the first conductive part is disconnected from the second conductive part, at this time, the detection assembly 2 is in the first target state, indicating that the stamping has reached the set state. Specifically, in use, before the stamping starts, the first conductive part is usually in the first position, in contact with the second conductive part and forms an electrical connection. At this time, the detection assembly 2 is in the second target state, indicating that the stamping has not started or has not reached the set state. As the stamping head 6 gradually enters the receiving hole 4, the first conductive part is gradually moved downward under the action of the stamping force. When the stamping head 6 reaches the predetermined stamping depth, the first conductive part moves to the second position and is disconnected from the second conductive part. When the first conductive part is completely moved to the second position and disconnected from the second conductive part, the detection assembly 2 enters the first target state, indicating that the stamping has been successfully completed and has reached the set state. By such an arrangement, after the workpiece is stamped to the target depth, the first conductive part can be immediately disconnected from the second conductive part, ensuring the sensitivity and accuracy of the detection.

[0070] In some alternative embodiments of the present application, the detection assembly 2 can be arranged such that when the first conductive part is in contact with the second conductive part and forms an electrical connection, the detection assembly 2 is in the first target state; when the first conductive part is disconnected from the second conductive part, the detection assembly 2 is in the second target state; and the first conductive part can move with the movement of the stamping head 6 or the workpiece, so that after the workpiece is stamped to the target depth, the first conductive part can be in contact with the second conductive part and forms an electrical connection. The distance between the first conductive part and the second conductive part can be adjusted according to the target depth, improving the flexibility of the detection.

[0071] As shown in Figure 2 and Figure 3 In some alternative embodiments of the present application, the first conductive part includes an elastic rod 21, the elastic rod 21 can be extended and retracted along its extension direction to move its end between the first position and the second position; the second conductive part includes a sleeve 22, the sleeve 22 is sleeved outside the elastic rod 21, and an insulating layer 24 is arranged between the sleeve 22 and the elastic rod 21; wherein the first conductive part is in the first position, the elastic rod 21 is in contact with the sleeve 22; the first conductive part is in the second position, the elastic rod 21 is not in contact with the sleeve 22.

[0072] The elastic rod 21 is a rod-shaped structure capable of elastic deformation. For example, the elastic rod 21 can be composed of a spring and a connecting rod 213 so that the elastic rod 21 can be telescopic along its extension direction to move its end between the first position and the second position. The material of the elastic rod 21 has good electrical conductivity and elastic recovery capability, such as spring steel, phosphor bronze, etc. The end of the elastic rod 21 can be compressed by pressure when the punch head 6 enters the receiving hole 4, and when the punch head 6 reaches the predetermined depth, the end of the elastic rod 21 reaches the second position; when the punch head 6 does not reach the predetermined depth, the elastic rod 21 remains in the first position. The elastic rod 21 can be cylindrical or similar in shape to ensure that it can smoothly slide in the sleeve 22 and automatically recover to the initial position when not under force.

[0073] The sleeve 22 is sleeved outside the elastic rod 21 and serves as a fixing and supporting function. The material of the sleeve 22 has good electrical conductivity, such as copper, aluminum or other metal alloys. The contact or non-contact state between the sleeve 22 and the elastic rod 21 determines the electrical connection state of the detection assembly 2, thereby determining whether the stamping has reached the set state. The sleeve 22 can be cylindrical or other shapes compatible with the elastic rod 21, and has a hole diameter matching the elastic rod 21 inside to ensure a tight fit between the two. The insulating layer 24 is arranged between the sleeve 22 and the elastic rod 21 to prevent accidental electrical connection between the two in a non-contact state. The insulating layer 24 can be made of insulating materials such as polytetrafluoroethylene (PTFE), ceramic or plastic, etc. The insulating layer 24 ensures that an electrical connection is only formed when the elastic rod 21 and the sleeve 22 are in direct contact, avoiding false judgments of the stamping state.

[0074] When the elastic rod 21 is in the first position, its end is in contact with the sleeve 22, forming an electrical connection. At this time, the detection assembly 2 is in the second target state, indicating that the stamping has not reached the set state. When the elastic rod 21 is elongated to the second position, its end is separated from the sleeve 22 and no longer in contact, forming a disconnected connection. At this time, the detection assembly 2 is in the first target state, indicating that the stamping has reached the set state. By the contact or non-contact state of the elastic rod 21 and the sleeve 22, it can be accurately determined whether the stamping has reached the set depth, ensuring that each stamping meets the requirements. Compared with other complex sensors, the design of the elastic rod 21 and the sleeve 22 is simple in structure, easy to manufacture and maintain, and reduces the cost. The self-recovery capability of the elastic rod 21 and the presence of the insulating layer 24 make the system have high reliability and stability, which can be used for a long time in harsh industrial environments and reduce the failure rate.

[0075] As Figure 2 and Figure 3As shown, in some modified embodiments of this application, the first end of the elastic rod 21 is provided with a first protrusion 214, which can contact the sleeve 22 when the elastic rod 21 retracts; the outer side of the sleeve 22 is provided with a second protrusion 23, which is connected to the lower mold 12. The first end of the elastic rod 21 is provided with a first protrusion 214, which can contact the sleeve 22 when the elastic rod 21 retracts. The design of the first protrusion 214 can increase the contact area and ensure a more stable and reliable electrical connection. The end of the elastic rod 21 can be compressed by pressure when the stamping head 6 enters the receiving hole 4. When the stamping head 6 reaches a predetermined depth, the elastic rod 21 extends to a second position, and the first protrusion 214 does not contact the sleeve 22; when the stamping head 6 does not reach the predetermined depth, the elastic rod 21 remains in the first position, and the first protrusion 214 remains in contact with the sleeve 22.

[0076] A second protrusion 23 is provided on the outer side of the sleeve 22. This protrusion connects to the lower die 12 to ensure that the sleeve 22 remains in a fixed position during the stamping process. The second protrusion 23 can be directly connected to the lower die 12 by threads, snaps, or other fixing methods to prevent the sleeve 22 from loosening or shifting. The second protrusion 23 can also be indirectly connected to the lower die 12 through the fixing part 3. For example, the second protrusion 23 can cooperate with the groove of the fixing part 3 to complete the connection.

[0077] like Figure 2 and Figure 3 As shown, in some modified embodiments of this application, the elastic rod 21 includes a connecting rod 213, a fixing member 211, and an elastic member 212. The connecting rod 213 is disposed inside the sleeve 22, and the fixing member 211 is connected to the connecting rod 213. The fixing member 211 is disposed at the second end of the elastic rod 21 for contacting the target workpiece 7. One end of the elastic member 212 is connected to the fixing member 211, and the other end of the elastic member 212 is connected to the sleeve 22.

[0078] The connecting rod 213 is the core component of the elastic rod 21, located inside the sleeve 22, and serves to transmit force. The connecting rod 213 is made of a rigid material, such as stainless steel or aluminum alloy, to ensure it does not deform under stress. One end of the connecting rod 213 is connected to the fixing member 211, while the other end can slide freely within the sleeve 22, ensuring the elastic rod 21 can extend and retract axially. The fixing member 211 is located at the second end of the elastic rod 21 and is used to contact the target workpiece 7. The material of the fixing member 211 should have good electrical conductivity and wear resistance, such as copper, aluminum, or other metal alloys. The fixing member 211 is connected to the connecting rod 213, ensuring smooth force transmission between them. When the stamping head 6 acts on the workpiece, the fixing member 211 is subjected to pressure, which is transmitted to the connecting rod 213, thereby compressing the elastic member 212. The shape of the fixing member 211 can be designed according to the surface characteristics of the workpiece to ensure stable contact and avoid misjudging the stamping state.

[0079] The elastic member 212 is an elastic element connected to the fixing member 211 at one end and to the sleeve 22 at the other end. The elastic member 212 can be made of materials such as springs, rubber, or elastic polymers, and has good elasticity and recovery ability. The function of the elastic member 212 is to provide the necessary elastic recovery force during the stamping process, ensuring that the elastic rod 21 can quickly return to the initial position after the stamping head 6 reaches the predetermined depth. The elastic force of the elastic member 212 can be adjusted according to the specific stamping process to adapt to different stamping depth and force requirements.

[0080] Before the start of stamping, the elastic rod 21 is in the first position, and the first protrusion 214 of the connecting rod 213 is in contact with the sleeve 22, forming an electrical connection. At this time, the detection assembly 2 is in the second target state, indicating that the stamping has not started or has not reached the set state. As the stamping head 6 gradually enters the receiving hole 4, the fixing member 211 is subjected to the stamping force, which is transmitted to the connecting rod 213, thereby compressing the elastic member 212. When the stamping head 6 reaches the predetermined stamping depth, the elastic rod 21 is completely compressed to the second position, and the first protrusion 214 of the connecting rod 213 is separated from the sleeve 22. When the elastic rod 21 is completely compressed to the second position, the first protrusion 214 of the connecting rod 213 is disconnected from the sleeve 22, and the detection assembly 2 enters the first target state, indicating that the stamping has been successfully completed and has reached the set state.

[0081] The fixing member 211 is in direct contact with the workpiece, ensuring accurate transmission of the stamping force and avoiding loss or error due to the presence of intermediate components. The elastic member 212 not only provides the necessary elastic recovery force, but also acts as a buffer during the stamping process, reducing the impact on the detection assembly 2 and prolonging its service life. By adjusting the pre-tightening force of the elastic member 212, the sensitivity of the detection assembly 2 can be changed to adapt to different stamping depth and force requirements. For example, in high-precision stamping, the pre-tightening force of the elastic member 212 can be increased to make the detection assembly 2 more sensitive to small changes in stamping depth; while in low-precision stamping, the pre-tightening force can be reduced to make the detection assembly 2 respond to larger changes in stamping depth. When the stamping is completed, the recovery force of the elastic member 212 will automatically push the elastic rod 21 back to the first position, ensuring that the detection assembly 2 can quickly prepare for the next stamping. This automatic reset function improves the response speed of the system, reduces downtime, and improves production efficiency.

[0082] Example 2

[0083] As Figure 6As shown, a detection system includes a control device 8 and a detection device. The detection device includes a stamping mechanism 1 and a detection component 2. The stamping mechanism 1 includes an upper die 11 and a lower die 12 that cooperate with each other. The detection component 2 is disposed in the lower die 12 and is used to detect whether the stamping of the target workpiece 7 of the upper die 11 relative to the lower die 12 has reached a set state. When the target workpiece 7 is stamped to the set state, the detection component 2 is in a first target state; when the target workpiece 7 is not stamped to the set state, the detection component 2 is in a second target state, which is different from the first target state. The control device 8 is connected to the detection device, and the control device 8 controls the movement state of the upper die 11 relative to the lower die 12 based on the state of the detection component 2.

[0084] The specific structure of the detection device can be the same as in Embodiment 1, and will not be described again here. The control device 8 is the controller of the entire stamping system, responsible for receiving signals from the detection component 2 and controlling the movement state of the upper die 11 based on these signals. The control device 8 may include a central processing unit, an input / output interface, a driver, and a human-machine interface. The central processing unit processes data from the detection component 2 and executes corresponding control logic. The input / output interface is used to communicate with the detection component 2 and other peripheral devices, receiving detection signals and sending control commands. The driver is used to drive the movement of the upper die 11, typically through a servo motor, hydraulic cylinder, or pneumatic cylinder. The human-machine interface is used for operator interaction with the control system, displaying the current stamping status, alarm information, etc. The control device 8 can control the movement state of the upper die 11 relative to the lower die 12, thus facilitating the control of the stamping process. After stamping is completed, the control device 8 controls the movement state of the upper die 11 relative to the lower die 12 based on the status of the detection component 2. For example, after stamping is completed, the detection component 2 is in the first target state, indicating that the workpiece has been stamped to the set state and that the stamping head 6 is normal. The control device 8 then controls the upper die 11 and the lower die 12 to continue working according to the process. After stamping is completed, the detection component 2 is in the second target state, indicating that the workpiece has not been stamped to the set state, suggesting that the stamping head 6 may be malfunctioning. The control device 8 then controls the upper die 11 and the lower die 12 to stop working to avoid greater losses. More specifically, the control device 8 can be connected to a relay, and the relay can be connected to the upper die 11, controlling the upper die 11 to stop working.

[0085] like Figure 6 As shown, in some modified embodiments of this application, the detection system further includes a display device 9 and an alarm device 10. The display device 9 is connected to the control device 8 and is used to display the status of the control device 8 and the detection device. The alarm device 10 is connected to the control device 8 and provides prompts based on the detection device.

[0086] The display device 9 is connected with the control device 8, and is used for displaying the state of the control device 8 and the detection assembly 2 in real time. The display device 9 can display the current punching state (such as the punching depth, the punching force, the state of the detection assembly 2, etc.). The display device 9 can also display historical records: record detailed data of each punching, facilitate subsequent quality tracing and analysis. The display device 9 can also display alarm information, reminding the operator to pay attention to abnormal conditions. The display device 9 can also display an operation interface, providing a user-friendly operation interface, allowing the operator to set the punching parameters, start / stop the punching process, etc. In particular, the detection device can be set to multiple, multiple detection devices can be connected with the same controller, and the display is displayed on one display device 9, which is convenient for monitoring the state of multiple punching heads 6 at the same time.

[0087] The alarm device 10 is connected with the control device 8, and is prompted based on the state of the detection assembly 2. The alarm device 10 can take various forms, for example, the alarm device 10 can be a multi-color light that can display different states of the detector; the alarm device 10 can also be a sound alarm, which can emit a sound when the detection assembly 2 is in the second target state; the alarm device 10 can also be an audible and visual alarm, which can emit light and sound when the detection assembly 2 is in the second target state. In particular, the alarm device 10 can also be a buzzer and an indicator light, etc., used to remind the operator to take measures in abnormal conditions. The alarm device 10 can alarm in real time, and when the detection assembly 2 enters the second target state (the punching does not reach the set state), an alarm signal is immediately sent out to remind the operator to check the problem. When the system detects other abnormal conditions (such as overtravel, sensor failure, etc.), the alarm device 10 will also be triggered to remind the operator to maintain. According to different abnormal conditions, the alarm device 10 can send different levels of alarm signals to help the operator quickly identify the severity of the problem.

[0088] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A detection device, characterized in that, The punch mechanism comprises a punch head and a lower die, and a detection assembly is arranged in the lower die to detect whether the punch head reaches a set state when punching the target workpiece. When the target workpiece is punched to reach a set state, the detection assembly is in a first target state. When the target workpiece is punched to not reach a set state, the detection assembly is in a second target state different from the first target state.

2. The detection device according to claim 1, wherein the upper die is provided with a punch head, the lower die is provided with a receiving hole corresponding to the position of the punch head, and the detection assembly is arranged in the receiving hole to detect the punching state of the target workpiece by the punch head.

3. The detection device according to claim 1, wherein the mounting position of the detection assembly has a target depth with the receiving surface of the lower die to detect whether the target workpiece is punched to reach a set state.

4. The detection device according to claim 2, wherein the lower die is provided with a receiving groove for accommodating the target workpiece, the receiving hole is in communication with the receiving groove, and the detection assembly is inserted in the receiving hole through a fixed part.

5. The detection device according to claim 1, wherein the detection assembly comprises: a first conductive part capable of moving between a first position and a second position; and a second conductive part arranged at a position adjacent to the first conductive part, wherein the first conductive part is in the first position, the first conductive part and the second conductive part are electrically connected, and the detection assembly is in the second target state; and the first conductive part is in the second position, the first conductive part and the second conductive part are disconnected, and the detection assembly is in the first target state.

6. The detection device according to claim 5, wherein the first conductive part comprises an elastic rod capable of stretching and contracting along its extension direction to move the end of the elastic rod between the first position and the second position; the second conductive part comprises a sleeve, the sleeve is sleeved outside the elastic rod, and an insulating layer is arranged between the sleeve and the elastic rod; wherein the first conductive part is in the first position, the elastic rod and the sleeve are in contact; and the first conductive part is in the second position, the elastic rod and the sleeve are not in contact.

7. The detection device according to claim 6, wherein a first protrusion is arranged at the first end of the elastic rod, the first protrusion can be in contact with the sleeve when the elastic rod is contracted; and a second protrusion is arranged outside the sleeve, the second protrusion is connected with the lower die.

8. The detection device according to claim 6, wherein the elastic rod comprises: a connecting rod arranged inside the sleeve; and a fixing part connected with the connecting rod, the fixing part is arranged at the second end of the elastic rod to contact the target workpiece. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ An elastic member, one end of the elastic member being connected with the fixing member, the other end of the elastic member being connected with the sleeve.

9. A detection system characterized by, Comprise: A control device and a detection device, the detection device comprising: A stamping mechanism, the stamping mechanism comprising a cooperating upper die and lower die; A detection assembly, the detection assembly being arranged in the lower die, the detection assembly being used to detect whether the stamping of the upper die relative to a target workpiece in the lower die reaches a set state; The target workpiece is stamped to reach a set state, the detection assembly is in a first target state; The target workpiece is stamped without reaching a set state, the detection assembly is in a second target state, the second target state being different from the first target state; The control device and the detection device are connected, the control device controls the movement state of the upper die relative to the lower die based on the state of the detection assembly.

10. The detection system of claim 9, wherein, Also comprise: A display device, the display device and the control device being connected, the display device being used to display the state of the control device and the detection device; An alarm device, the alarm device and the control device being connected, the alarm device prompting based on the detection device.

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