Material grabbing device and detection system

Abstract

The utility model relates to a material grabbing device and a detection system, the material grabbing device comprises a first clamping part, a second clamping part, a driving piece and a pressing plate assembly, the second clamping part and the first clamping part are oppositely arranged, and a clamping position is formed between the first clamping part and the second clamping part; the driving piece is connected with the first clamping part and the second clamping part; the pressing plate assembly comprises a connecting back plate, an elastic part and a pressing plate, after the first clamping part and the second clamping part are limited to the two ends of the to-be-detected piece, the driving piece drives the first clamping part and the second clamping part to be centered inwards, the to-be-detected piece pushes the pressing plate inwards, the pressing plate gives outward thrust to the to-be-detected piece under the elastic force effect of the elastic part, and the to-be-detected piece is clamped through the pressing plate. The to-be-detected piece is tightly attached to the positioning part, gaps between the to-be-detected piece and the first clamping part and the second clamping part are reduced, connection between the first clamping part and the to-be-detected piece and between the second clamping part and the to-be-detected piece is tighter, and the risks of loosening and falling off are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, and specifically relates to a material grabbing device and a detection system. Background Art

[0002] The engine cylinder head is one of the important structural components of an internal combustion engine. The cylinder head is located on the upper part of the engine and covers the engine block. Its main function is to seal the engine block and ensure that the pressure in the cylinder does not leak. The cylinder head is often in contact with high-temperature and high-pressure combustion gas, and therefore bears a large thermal and mechanical load.

[0003] At present, the commonly used engine cylinder head quality inspection method relies on laser scanners, feeler gauges, knife-edge gauges, micrometers and other measuring tools. The above inspection methods are inefficient, have poor repeatability, high labor intensity, high labor participation costs, and poor inspection accuracy.

[0004] In addition, during the loading and unloading process of the existing automated inspection system, it is difficult to limit the position of the inspected parts with irregular shapes, such as engine cylinder heads, during the grasping process, and the grasping is not reliable. There is a risk of loosening and falling off, which poses a major safety hazard and a high risk factor for operators during operation. Summary of the invention

[0005] The utility model aims to provide a material grasping device and a detection system to solve the problems existing in the prior art of poor grasping stability of the detected parts by the existing detection equipment, the risk of loosening and falling off, and low safety.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0007] In one aspect, the utility model provides a material grabbing device, which comprises:

[0008] The first clamping part,

[0009] A second clamping portion, which is arranged opposite to the first clamping portion, a clamping position is formed between the first clamping portion and the second clamping portion, and a positioning portion is formed on the first clamping portion and / or the second clamping portion;

[0010] A driving member, comprising a first output end and a second output end, wherein the first output end is connected to the first clamping portion, and the second output end is connected to the second clamping portion;

[0011] A pressure plate assembly is arranged between the first clamping part and the second clamping part, and the pressure plate assembly includes a connecting back plate, an elastic part and a pressure plate, the connecting back plate is fixed on the fixed end of the driving member, the elastic part is arranged between the connecting back plate and the pressure plate, the moving direction of the pressure plate in the clamping position is perpendicular to the moving direction of the first clamping part, and the first clamping part, the second clamping part and the pressure plate are used to clamp the part to be detected.

[0012] In some embodiments of the present application, the part to be inspected is an engine cylinder head, and an upper mounting surface and a lower mounting surface are formed on the engine cylinder head, the upper mounting surface is used to contact and connect with the first clamping part, and the lower mounting surface is used to contact and connect with the second clamping part.

[0013] In some embodiments of the present application, a first clamping surface is formed on the first clamping portion, and the positioning portion includes a conformal surface formed on the first clamping surface, and a shape of the conformal surface is adapted to the upper mounting surface.

[0014] In some embodiments of the present application, the positioning portion includes a positioning protrusion formed on the second clamping portion and extending toward the first clamping portion, a positioning hole is formed on the lower mounting surface, and the positioning protrusion extends into the corresponding positioning hole.

[0015] On the other hand, the present application also proposes a detection system, which includes a loading and unloading device, wherein the loading and unloading device includes a conveying track and a robot, and the grasping device involved in any of the above items is connected to the robot for grasping the parts to be inspected.

[0016] In some embodiments of the present application, a detection device includes a support table and a measuring machine, wherein the measuring machine is mounted on the support table;

[0017] A limit device is arranged on the support table and is located below the measuring machine. The limit device includes a bottom support component, a fixed limit component and a movable limit component. A detection position is formed between the bottom support component, the fixed limit component and the movable limit component. The robot places the part to be detected in the detection position.

[0018] In some embodiments of the present application, the bottom support assembly includes a support base plate fixed on the support platform and a plurality of support vertical portions dispersedly arranged on the support base plate, and the bottom of the component to be detected is supported on each of the support vertical portions.

[0019] In some embodiments of the present application, the fixed limiting assembly includes a first fixed member and a second fixed member, and the movable limiting assembly includes a first movable member and a second movable member, the first movable member is located on a side opposite to the first fixed member, and the second movable member is located on a side opposite to the second fixed member, and the movable limiting assembly is configured so that the first movable member can move in a direction close to or away from the first fixed member, and the second movable member is configured to move in a direction close to or away from the second fixed member.

[0020] In some embodiments of the present application, the first movable member includes a first driving portion and a first limiting portion, the first driving portion is fixed to the supporting base plate, the first limiting portion is connected to the output end of the first driving portion, and the first limiting portion is configured to move in a direction close to or away from the first fixed member;

[0021] The second movable part includes a second driving part and a second limiting part, the second driving part is fixed on the supporting base plate, the second limiting part is connected to the output end of the second driving part, the second limiting part is configured to move in a direction approaching or away from the second fixed part, and the moving directions of the second limiting part and the first limiting part are perpendicular.

[0022] In some embodiments of the present application, a sensor and a control system are further included, wherein the sensor is disposed on the support platform, and the sensor includes a signal transmitting part and a signal receiving part disposed relatively on both sides of the detection position, and is used to detect whether there is a to-be-detected part in the detection position;

[0023] The control system is connected to the measuring machine, the robot, the driving member, the first driving part and the second driving part by signals.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are:

[0025] The grabbing device involved in the present application can grab the workpiece to be inspected and load it to the inspection position of the support table, and push the workpiece to be inspected to the target inspection position through the movable limit assembly to facilitate the inspection by the measuring machine;

[0026] After the first clamping part and the second clamping part are limited to the two ends of the part to be detected, the driving part respectively drives the first clamping part and the second clamping part to align inward, and the part to be detected pushes the pressure plate inward. Under the elastic force of the elastic part, the pressure plate gives an outward thrust to the part to be detected, so that the part to be detected is tightly attached to the positioning part, reducing the gap between the part to be detected and the first clamping part and the second clamping part, so that the connection between the first clamping part and the second clamping part and the part to be detected is tighter, avoiding the risk of loosening and falling off.

[0027] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of an embodiment of the detection system proposed by the utility model;

[0030] Figure 2 It is a schematic diagram of the structure of the loading and unloading device;

[0031] Figure 3 It is one of the structural diagrams of the material grabbing device;

[0032] Figure 4 This is the second schematic diagram of the material grabbing device structure;

[0033] Figure 5 It is a schematic diagram of the position of the part to be tested on the limit device;

[0034] Figure 6 1 is a schematic diagram of the structure of the limit device;

[0035] Figure 7 It is a schematic diagram of the disassembly of the limit device;

[0036] In the figure,

[0037] 100. Loading and unloading device;

[0038] 110. Conveyor track;

[0039] 120, robot; 130, material grabbing device; 131, first clamping part; 1311, conformal surface; 132, second clamping part; 1321, positioning convex part; 133, connecting part; 134, pressing plate assembly; 1341, connecting back plate; 1342, pressing plate; 1343, elastic part;

[0040] 200, detection device; 210, measuring machine; 220, support table;

[0041] 300, limiting device; 310, supporting bottom plate; 320, first movable member; 321, first driving part; 322, first adapter plate; 323, first limiting part; 324, limiting end; 330, first fixing member; 340, second movable member; 341, second driving part; 342, second adapter plate; 343, second limiting part; 344, limiting convex part; 350, second fixing member; 360, supporting vertical part; 361, first supporting part; 362, second supporting part; 363, third supporting part;

[0042] 400. Control system;

[0043] 510, signal transmitting unit; 520, signal receiving unit;

[0044] 600. Parts to be tested. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0051] refer to Figure 1-Figure 4 The present application proposes a material grabbing device 130 and a detection system. The material grabbing device 130 is used to be connected to the detection system to carry and circulate the parts 600 to be detected in the machine processing line and the measurement area.

[0052] Specific reference Figure 3 , Figure 4 The material grasping device 130 includes a first clamping portion 131, a second clamping portion 132, a driving member and a pressure plate assembly 134. The first clamping portion 131 and the second clamping portion 132 are relatively arranged along the up and down directions under the action of the driving member to clamp the part to be detected 600.

[0053] The driving member is connected to the operating arm of the robot 120 through structures such as connecting members. The operating arm of the robot 120 can rotate and move in all directions to achieve the functions of grabbing the part to be inspected 600, moving the part to be inspected 600, and loading the part to be inspected 600 to the inspection position. After the inspection is completed, the robot 120 can also drive the grabbing device 130 to unload the part to be inspected 600.

[0054] A clamping position is formed between the first clamping portion 131 and the second clamping portion 132. When clamping, the first clamping portion 131 and the second clamping portion 132 extend to the upper and lower sides of the part to be detected 600 respectively. Then, the first clamping portion 131 and the second clamping portion 132 move relative to each other to clamp the part to be detected 600 in the clamping position.

[0055] In order to facilitate positioning and improve the stability of the connection between the detected member 600 and the first clamping portion 131 and the second clamping portion 132 to avoid falling off, a positioning portion is formed on the first clamping portion 131 and / or the second clamping portion 132 .

[0056] The driving member may include two driving structures such as driving cylinders or driving hydraulic cylinders, which are respectively connected to the first clamping part 131 and the second clamping part 132 to drive the first clamping part 131 and the second clamping part 132 separately.

[0057] In other embodiments, the driving member can be a bidirectional hydraulic cylinder, which includes a first output end and a second output end, the first output end is connected to the first clamping part 131, and the second output end is connected to the second clamping part 132, synchronously driving the first clamping part 131 and the second clamping part 132 to move closer to or away from each other.

[0058] Specifically, the pressure plate assembly 134 is disposed between the first clamping portion 131 and the second clamping portion 132 to provide an auxiliary clamping function, and is used to provide a limit for one side of the to-be-detected member 600 .

[0059] The pressure plate assembly 134 includes a connecting back plate 1341, an elastic portion 1343 and a pressure plate 1342. The connecting back plate 1341 is fixed to the fixed end of the driving member. The connecting back plate 1341 can be directly fixed to the driving member or fixed to the driving member through other adapter structures to achieve the fixation of the connecting back plate 1341 on the pressure plate assembly 134.

[0060] The elastic portion 1343 is disposed between the connecting back plate 1341 and the pressing plate 1342 . The moving direction of the pressing plate 1342 in the clamping position is perpendicular to the moving direction of the first clamping portion 131 .

[0061] During the material grabbing process, the piece to be detected 600 pushes the pressure plate 1342 toward the connecting back plate 1341, and the elastic portion 1343 is in a compressed state. The pressure plate 1342 exerts an outward force on the piece to be detected 600 under the action of the elastic portion 1343, and tightly connects the piece to be detected 600 and the positioning portion, thereby avoiding looseness between the material grabbing device 130 and the piece to be detected 600 due to a gap formed between the positioning portion and the piece to be detected 600 during the actual grabbing process.

[0062] That is, under the action of the first clamping portion 131 , the second clamping portion 132 and the pressing plate 1342 , the piece to be detected is more firmly and stably connected in the clamping position.

[0063] In practice, the part to be tested involved in this application is the engine cylinder head, which is one of the important structural components of an internal combustion engine. The engine cylinder head is located on the upper part of the engine and covers the engine cylinder block. Its main function is to seal the engine cylinder block and ensure that the pressure in the cylinder does not leak.

[0064] The engine cylinder head is often in contact with high-temperature and high-pressure combustion gas, and therefore bears great thermal and mechanical loads. The qualification inspection of the position of the automobile cylinder head air duct is very important. The position and shape of the air duct have a direct impact on the performance of the engine, including combustion efficiency, fuel economy, and power output. Therefore, the cylinder head air duct size is accurately inspected.

[0065] An upper processing surface and a lower processing surface are formed at the upper and lower ends of the engine cylinder head. The upper processing surface is used for contacting and connecting with the first clamping part 131 , and the lower processing surface is used for contacting and connecting with the second clamping part 132 .

[0066] Specifically, the first clamping portion 131 and the second clamping portion 132 are both L-shaped, and include a clamping vertical portion connected to the driving member and a clamping horizontal portion vertically arranged at the end of the clamping vertical portion.

[0067] A first clamping surface is formed on the first clamping portion 131 . Specifically, the first clamping surface is formed on the lower surface of the clamping transverse portion thereof. The positioning portion includes a conforming surface 1311 formed on the first clamping surface. The conforming surface 1311 is adapted to the upper processing surface.

[0068] The positioning portion includes a positioning protrusion 1321 formed on the second clamping portion 132 and extending toward the first clamping portion 131. The positioning protrusion 1321 is located on the upper surface of the clamping cross portion of the second clamping portion 132. The number of the positioning protrusions 1321 matches the number and positions of the positioning holes formed on the lower processing surface. The positioning protrusions 1321 extend into the corresponding positioning holes.

[0069] When clamped, the positioning protrusion 1321 is connected to the positioning hole at the bottom of the part to be detected 600, and the conforming surface 1311 is adapted to the mounting surface on the part to be detected 600. Since the dimensional error between the positioning protrusion 1321 and the positioning hole, and between the conforming surface 1311 and the mounting surface may cause the part to be detected 600 to shake during the loading and unloading process, the pressure plate 1342 is designed to apply an outward thrust to the part to be detected 600, and the outer side of the part to be detected 600 is tightly connected with the first clamping part 131 and the second clamping part 132, so as to reduce the shaking of the part to be detected 600 in the clamping position.

[0070] Specific reference Figure 1 , Figure 2 The present application also proposes a detection system, which includes a loading and unloading device 100, a detection device 200 and a limiting device 300.

[0071] The loading and unloading device 100 includes a conveying track 110 and a robot 120 . The material grabbing device 130 is connected to the robot 120 . The robot 120 can move along the conveying track 110 under the action of a conveying drive motor.

[0072] The detection device 200 specifically includes a support platform 220 and a measuring machine 210 . The bottom of the support platform 220 is supported on the ground, and the measuring machine 210 is installed on the support platform 220 .

[0073] The measuring machine 210 is an automated measuring device, on which a measuring head is formed. After the inspected piece 600 is placed at the target inspection position on the support table 220 , the measuring head measures the dimensions along the surface of the inspected piece to achieve automated inspection.

[0074] A limit device 300 is provided on the support table 220 and is located below the measuring machine 210. After the robot 120 places the part to be detected at the measuring position, the limit device 300 further positions the part to be detected 600 to ensure accurate position of the part to be detected and improve detection accuracy.

[0075] The material grabbing device 130 is mainly used for material handling and turnover in the machining line and measuring area; the robot 120 can be automatically loaded and unloaded, and automatically positioned and measured. By integrating online detection, the detection cost is greatly reduced, and the cylinder head is ensured to be fast, stable, and effective in full-size online detection, thereby improving production efficiency and consistency, and effectively controlling the quality of the workpiece processing process.

[0076] The incoming material docking method is that the robot 120 grabs the part to be inspected 600 from the machining line area, and the robot 120 docks with the existing machining line. After grabbing the part to be inspected 600, it is placed on the measuring station positioning fixture for automatic clamping for inspection. After the inspection, the robot 120 grabs the corresponding machining line according to the inspection results for unloading and sorting.

[0077] refer to Figure 5 , the specific structure of the limiting device 300 is described in detail below:

[0078] The limiting device 300 includes a bottom support component, a fixed limiting component and a movable limiting component. A detection position is formed between the bottom support component, the fixed limiting component and the movable limiting component. The robot 120 places the part to be detected in the detection position. After the part to be detected 600 is placed in the detection position, the part to be detected 600 is further positioned by the movable limiting component to improve the accuracy of its position.

[0079] Specifically, the bottom support assembly includes a support base plate 310 fixed on the support platform 220 and support uprights 360 dispersedly arranged on the support base plate 310 , and the bottom of the to-be-detected component is supported on each of the support uprights 360 .

[0080] The supporting bottom plate 310 is fixed on the upper surface of the supporting platform 220 , and the number of the supporting uprights 360 is plural, so as to improve the stability of supporting the object to be inspected 600 .

[0081] A bottom support assembly, comprising a support base plate 310 and support uprights 360 dispersedly disposed on the support base plate 310;

[0082] The fixed limiting assembly includes a first fixing member 330 and a second fixing member 350 fixedly disposed on the supporting base plate 310 , and functions to form a fixed limiting function on two adjacent sides of the to-be-detected member 600 .

[0083] The movable limiting assembly, the bottom supporting assembly and the fixed limiting assembly form a detection position for placing the to-be-detected member 600.

[0084] The movable limiting assembly includes a first movable member 320 and a second movable member 340 . The first movable member 320 and the second movable member 340 respectively move the detected member 600 toward the first fixed member 330 and the second fixed member 350 to position the detected member 600 .

[0085] refer to Figure 7 Specifically, the first movable member 320 includes a first driving portion 321 and a first limiting portion 323, and the second movable member 340 includes a second driving portion 341 and a second limiting portion 343. The fixed ends of the first driving portion 321 and the second driving portion 341 are connected to the supporting base plate 310. The first limiting portion 323 is connected to the telescopic end of the first driving portion 321 and can approach or move away from the first fixing member 330 along a first direction. The second limiting portion 343 is connected to the telescopic end of the second driving portion 341 and can approach or move away from the second fixing member 350 along a second direction perpendicular to the first direction.

[0086] In order to avoid interference between the fixed limiting assembly and the movable limiting assembly, a bracket member is arranged on the supporting base plate 310, and the bracket member includes supporting vertical frames spaced apart on the supporting base plate 310 and supporting horizontal frames connected between the supporting vertical frames, and the first fixing member 330 and the second fixing member 350 are arranged on the supporting horizontal frame.

[0087] The first fixing member 330 and the first movable member 320 are relatively arranged at two ends of the supporting cross frame along the first direction. The first limiting portion 323 is fixed to the first driving portion 321 through the first adapter plate 322. The first limiting portion 323 is formed with a limiting end portion 324 extending toward the first fixing member 330.

[0088] Specifically, in some embodiments of the present application, a threaded hole is formed on the end face of the first limiting portion 323 close to the first fixing member 330, and the limiting end portion 324 includes an adjusting screw, a limiting end and a fastening bolt. The adjusting screw is threadedly connected in the threaded hole, and the fastening bolt is connected to the adjusting screw. After the position of the adjusting screw in the threaded hole is adjusted, the fastening bolt is tightened until it contacts the threaded hole to fix the position of the adjusting screw.

[0089] That is, the fastening bolt is used to fix the position of the adjusting screw relative to the first limiting portion 323 .

[0090] The limiting end is connected to one end of the adjusting screw rod close to the first fixing member 330 , and is used for directly contacting the to-be-detected member 600 .

[0091] The first movable part 320 is used to contact the side of the engine cylinder head end face with a shorter length, and the second movable part 340 is used to contact the side of the engine cylinder head end face with a longer length. Therefore, the number of the first limiting parts 323 of the first movable part 320 can be set to a single one, and in order to improve the stability during the limiting process, the number of the second limiting parts 343 of the second movable part 340 is designed to be two.

[0092] Specifically, in some embodiments of the present application, the telescopic end of the second driving portion 341 is connected to the second adapter plate 342 , and both ends of the second adapter plate 342 are respectively connected to a second limiting portion 343 .

[0093] The two second limiting portions 343 are in contact with the same side of the engine cylinder head, and the engine cylinder head is simultaneously limited and moved, making the movement process more stable and preventing the engine cylinder head from deflecting.

[0094] Specifically, in order to avoid interference with the bracket, a limiting protrusion 344 extending upward is formed at the end of the second limiting portion 343. The height of the second limiting portion 343 is smaller than the supporting portion 360, and the height of the limiting protrusion 344 is greater than the supporting portion 360.

[0095] Copper blocks are respectively disposed on the sides of the first fixing member 330 , the second fixing member 350 and the limiting protrusion 344 that contact the detected member 600 to reduce hard contact with the detected member 600 and avoid wearing the surface of the detected member 600 .

[0096] The support stand 360 is used to support the bottom of the engine cylinder head, and includes a first support portion 361 and a third support portion 363 which are spaced apart on the support bottom plate 310 , and a second support portion 362 which is arranged on the support cross frame.

[0097] The first support portion 361 , the second support portion 362 and the third support portion 363 are connected to form a triangle structure to achieve stable support.

[0098] The bottom of the engine cylinder head is not a plane, and the bottom surfaces of the engine cylinder head where the first support portion 361, the second support portion 362 and the third support portion 363 at corresponding positions contact are not in the same plane.

[0099] Furthermore, due to the existence of machining errors between different batches, there may be machining errors between the bottom position of the engine cylinder head corresponding to the first support portion 361 and the bottom position of the engine cylinder head corresponding to the second support portion 362 and the third support portion 363 .

[0100] In order to improve versatility, the height of the first support portion 361 is designed to be adjustable.

[0101] Specifically, the first supporting portion 361 includes a first upright portion and an adjusting portion connected to the first upright portion, and the adjusting portion can be raised and lowered along the first upright portion.

[0102] Specifically, a threaded hole is formed at the upper end of the first vertical portion, and the adjusting portion includes an adjusting screw, a limiting end and a fastening bolt. The adjusting screw is threadedly connected in the corresponding threaded hole, the fastening bolt is connected to the adjusting screw, and the limiting end is connected to an end of the adjusting screw close to the part to be detected 600. After the position adjustment of the adjusting screw in the threaded hole is completed, the fastening bolt is tightened until it contacts the threaded hole to fix the position of the adjusting screw.

[0103] The first fixing member 330 includes a first fixing seat and a fixing end portion connected to the first fixing seat.

[0104] There are two second fixing members 350 , which are respectively disposed on two sides of the second supporting portion 362 . The second fixing member 350 includes a second fixing seat and a fixing end portion connected to the second fixing seat.

[0105] The fixing ends on the first fixing member 330 and the second fixing member 350 can be designed to be adjustable structures, and the adjustment method can be similar to the adjustment part, which will not be described in detail here.

[0106] The limit device 300 is used to support the workpiece to be detected through the bottom support assembly. The first movable member 320 and the second movable member 340 in the movable limit assembly respectively limit the workpiece to be detected in the horizontal direction and along two directions perpendicular to each other, making the detection position of the workpiece to be detected 600 more accurate. The positioning accuracy between the workpiece to be detected and the measuring machine 210 is high, which helps to ensure the detection accuracy. There is no need for manual alignment and does not need to rely on manual experience. The operation is highly intelligent, which can improve the consistency of the clamping posture of the workpiece to be detected 600 during batch detection, which is conducive to improving measurement accuracy and measurement efficiency, reducing labor costs, and reducing labor intensity.

[0107] The detection system can realize automatic positioning of automobile engine cylinder heads on machining lines and conduct full-size detection. The detection results can help to compensate and correct the parameters of machining line equipment and increase the yield rate.

[0108] In addition, the detection system also includes a sensor and a control system 400 .

[0109] The sensor is disposed on the support platform 220 , and includes a signal transmitting portion 510 and a signal receiving portion 520 disposed relatively on two sides of the detection position, and is used to detect whether there is a to-be-detected component 600 in the detection position.

[0110] The control system 400 is connected to the measuring machine 210 , the robot 120 , the driving member, the first driving unit 321 and the second driving unit 341 by signals to control the start and stop of the corresponding driving structure.

[0111] The present application realizes the full-size online automatic detection function of the automobile engine cylinder head. The detection data results can be automatically saved and counted through the control system 400. At the same time, it can also be combined with the statistical analysis software to realize the statistical analysis of the measurement characteristics. According to the results of the statistical analysis, the compensation value is fed back to the machining equipment for real-time adjustment of the machining parameters. The entire detection process does not require human intervention, which greatly improves the product accuracy consistency and detection efficiency. It has a high degree of intelligence, reduces labor costs, reduces labor intensity, and improves the management and control quality and production efficiency during the cylinder head processing process.

[0112] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0113] The above is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A material grabbing device, characterized in that: include: The first clamping part, A second clamping portion, which is arranged opposite to the first clamping portion, a clamping position is formed between the first clamping portion and the second clamping portion, and a positioning portion is formed on the first clamping portion and / or the second clamping portion; A driving member, comprising a first output end and a second output end, wherein the first output end is connected to the first clamping portion, and the second output end is connected to the second clamping portion; A pressure plate assembly is arranged between the first clamping part and the second clamping part, and the pressure plate assembly includes a connecting back plate, an elastic part and a pressure plate, the connecting back plate is fixed on the fixed end of the driving member, the elastic part is arranged between the connecting back plate and the pressure plate, the moving direction of the pressure plate in the clamping position is perpendicular to the moving direction of the first clamping part, and the first clamping part, the second clamping part and the pressure plate are used to clamp the part to be detected.

2. The material grabbing device according to claim 1, characterized in that: The part to be detected is an engine cylinder head, and an upper mounting surface and a lower mounting surface are formed on the engine cylinder head. The upper mounting surface is used for contacting and connecting with the first clamping part, and the lower mounting surface is used for contacting and connecting with the second clamping part.

3. The material grabbing device according to claim 2, characterized in that: A first clamping surface is formed on the first clamping portion, and the positioning portion includes a conformal surface formed on the first clamping surface, and a shape of the conformal surface is adapted to the upper mounting surface.

4. The material grabbing device according to claim 2 or 3, characterized in that: The positioning portion includes a positioning protrusion formed on the second clamping portion and extending toward the first clamping portion. A positioning hole is formed on the lower mounting surface, and the positioning protrusion extends into the corresponding positioning hole.

5. A detection system, characterized in that: It comprises a loading and unloading device, which comprises a conveying track and a robot. The grabbing device involved in any one of claims 1 to 4 is connected to the robot and is used to grab the parts to be tested.

6. The detection system according to claim 5, characterized in that: Also includes: A detection device, comprising a support platform and a measuring machine, wherein the measuring machine is mounted on the support platform; A limit device is arranged on the support table and is located below the measuring machine. The limit device includes a bottom support component, a fixed limit component and a movable limit component. A detection position is formed between the bottom support component, the fixed limit component and the movable limit component. The robot places the part to be detected in the detection position.

7. The detection system according to claim 6, characterized in that: The bottom support assembly includes a support bottom plate fixed on the support platform and a plurality of support vertical parts dispersedly arranged on the support bottom plate, and the bottom of the to-be-detected part is supported on each of the support vertical parts.

8. The detection system according to claim 7, characterized in that: The fixed limiting assembly includes a first fixed part and a second fixed part, and the movable limiting assembly includes a first movable part and a second movable part, the first movable part is located on a side opposite to the first fixed part, and the second movable part is located on a side opposite to the second fixed part, and the movable limiting assembly is configured so that the first movable part can move in a direction close to or away from the first fixed part, and the second movable part is configured so that it can move in a direction close to or away from the second fixed part.

9. The detection system according to claim 8, characterized in that: The first movable member includes a first driving part and a first limiting part, the first driving part is fixed to the supporting bottom plate, the first limiting part is connected to the output end of the first driving part, and the first limiting part is configured to move in a direction close to or away from the first fixed member; The second movable part includes a second driving part and a second limiting part, the second driving part is fixed on the supporting base plate, the second limiting part is connected to the output end of the second driving part, the second limiting part is configured to move in a direction approaching or away from the second fixed part, and the moving directions of the second limiting part and the first limiting part are perpendicular.

10. The detection system according to claim 9, characterized in that: It also includes a sensor and a control system, wherein the sensor is arranged on the support platform, and the sensor includes a signal transmitting part and a signal receiving part arranged on both sides of the detection position, and is used to detect whether there is a to-be-detected part in the detection position; The control system is connected to the measuring machine, the robot, the driving member, the first driving part and the second driving part by signals.

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