CN214622050U

CN214622050U - Detection mechanism and detection equipment

Info

Publication number: CN214622050U
Application number: CN202022629703.4U
Authority: CN
Inventors: 刘博�; 李影江; 曹怀三; 李玺; 许亚国; 盛南峰
Original assignee: Fu Tai Hua Precision Electronic Zhengzhou Co Ltd
Current assignee: Fulian Precision Electronics Zhengzhou Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-11-05
Anticipated expiration: 2030-11-13

Abstract

The application discloses detection mechanism, including locating component, pre-compaction subassembly and determine module. The positioning assembly comprises a sliding unit, a positioning plate, an initial positioning unit and a re-positioning unit, wherein the positioning plate is connected with the sliding unit in a sliding mode. The primary positioning unit comprises a first fixing piece and a second fixing piece, the secondary positioning unit comprises a moving piece arranged on the positioning plate, and the moving piece is perpendicular to the second fixing piece. The pre-pressing assembly comprises a support and a pre-pushing unit, and the pre-pushing unit is arranged above the positioning assembly. The detection assembly comprises a transmission part and a sensing unit, the transmission part penetrates through the groove in the positioning plate in a sliding mode, and the sensing unit is arranged below the positioning plate. The moving part clamps or loosens the workpiece, so that the positioning accuracy of the workpiece is improved, the pre-pushing unit is movably matched with the positioning plate, the precision of the pre-pressing position of the workpiece is improved, and the pre-pushing unit is matched with the detection assembly, so that the stability of the pre-pressing force is improved. The application also discloses a detection device.

Description

Detection mechanism and detection equipment

Technical Field

The application relates to the technical field of pressure detection, in particular to a detection mechanism and detection equipment.

Background

For a workpiece with a welding point, a preset pressure is generally applied to the welding point after the workpiece is welded, and the welding point is subjected to pressure detection to check whether the welding point is qualified. In the prior art, manual operation is usually adopted, so that the labor intensity is high, the operation force and the pre-pressing position are not accurate, the working efficiency is low, and the labor cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a detection mechanism and a detection apparatus to solve the above problems.

An embodiment of the application provides a detection mechanism for detecting a welding point of a workpiece, and the detection mechanism comprises a positioning assembly, a pre-pressing assembly and a detection assembly.

The locating component comprises a sliding unit, a locating plate, an initial locating unit and a re-locating unit, wherein the locating plate is connected with the sliding unit in a sliding mode, the initial locating unit comprises a first fixing piece and a second fixing piece which are vertically arranged on the locating plate, the re-locating unit comprises a moving piece, the moving piece is arranged on the locating plate in a sliding mode along a first direction, the moving piece is perpendicular to the second fixing piece, and the first fixing piece, the second fixing piece and the moving piece are enclosed to form a station for placing workpieces.

The prepressing assembly comprises a support and a prepressing unit, the prepressing unit is arranged above the positioning assembly and comprises a prepressing driving piece and a prepressing piece, the prepressing driving piece is connected with the support, the prepressing piece is connected with the prepressing driving piece, the sliding unit is used for driving the positioning plate to move to the position below the prepressing piece along a first direction, and the prepressing driving piece is used for driving the prepressing piece to move close to the positioning plate along a second direction perpendicular to the first direction so as to enable the prepressing piece to apply preset pressure on welding spots on a workpiece.

The detection assembly comprises a transmission part and a sensing unit, a groove for exposing a welding spot on the workpiece is formed in the positioning plate, the transmission part penetrates through the groove in a sliding mode, the sensing unit is arranged below the positioning plate, and the transmission part is abutted and pressed by the pre-pressing part, is close to the sensing unit in the second direction, moves and contacts with the sensing unit to trigger the sensing unit.

In an embodiment, the pre-pressing member includes a first connecting member, a second connecting member connected to the first connecting member, and a pre-pushing rod connected to the second connecting member, the first connecting member is connected to the pre-pushing driving member, and the pre-pushing driving member drives the pre-pushing rod to move along a second direction close to the positioning plate through the first connecting member and the second connecting member.

In an embodiment, the pre-pressing member further includes a first sensor connected between the second connector and the pre-pressing rod, the pre-pressing rod is provided with a cavity, a first elastic member and a probe are arranged in the cavity, one end of the first elastic member abuts against the first sensor, the other end of the first elastic member abuts against the probe, and one end of the probe, which is far away from the first elastic member, extends out of the end of the pre-pressing rod.

In an embodiment, the transmission part includes a first transmission rod and a second transmission rod vertically arranged in the groove, two floating assemblies are connected between two ends of the first transmission rod and the positioning plate, each floating assembly includes a fixed shaft and a second elastic member, the fixed shaft is connected with the first transmission rod, the second elastic member is sleeved on the fixed shaft, one end of the second elastic member is abutted against the first transmission rod, the other end of the second elastic member is abutted against the positioning plate, one end of the second transmission rod is connected with the first transmission rod, and the other end of the second transmission rod extends out of the positioning plate to trigger the sensing unit.

In an embodiment, the sensing unit includes a supporting member and a second pressure sensor, the supporting member is disposed below the positioning plate and connected to the positioning plate, and the second pressure sensor is mounted on the supporting member and located below the second transmission rod for detecting a pressure signal of the second transmission rod.

In an embodiment, the repositioning unit further includes a first driving member disposed on the positioning plate and connected to the movable member for driving the movable member to move toward the first fixing member to clamp or release the workpiece.

In one embodiment, the sliding unit includes a second driving member, a guide rail, and a slider, the second driving member is connected to the positioning plate, the positioning plate is connected to the guide rail through the slider, and the second driving member drives the positioning plate to move along the guide rail in a first direction.

In an embodiment, the positioning assembly further comprises an adsorption unit, and the adsorption unit comprises a plurality of adsorption pieces arranged in the station.

In the embodiment, the workpiece is arranged on a station surrounded by the first fixed part, the second fixed part and the movable part, and the movable part can slide along the first direction to clamp or loosen the workpiece, so that the positioning accuracy of the workpiece is improved; the positioning plate can move to the position below the prepressing piece along the first direction on the sliding unit, so that a welding spot to be detected on a workpiece corresponds to the prepressing piece, the prepressing driving piece drives the prepressing piece to be close to the workpiece on the positioning plate along the second direction, prepressing is applied to the welding spot on the workpiece by the prepressing piece, and the accuracy of the prepressing position of the workpiece is improved; if the detection welding spot is not broken, the welding spot on the workpiece is qualified, if the detection welding spot is broken, the detection welding spot falls into a groove in the positioning plate, the prepressing piece is made to be in contact with the transmission piece, the prepressing piece is driven by the prepressing driving piece to move along the second direction, the prepressing piece drives the transmission piece to move to be in contact with the sensing unit, and then the sensing unit is triggered, so that the unqualified welding spot of the workpiece to be detected is judged, the stability of the prepressing force is improved, and the labor cost is saved.

Another embodiment of the present application provides a detection apparatus, including the detection mechanism in the above-mentioned embodiment, still include board, charging tray and manipulator. The detection mechanism is arranged on the machine table; the material tray is used for placing a workpiece; the manipulator is used for taking and placing the workpiece from the material tray and taking and placing the workpiece on the detection mechanism.

In an embodiment, the manipulator includes the arm and connects the hand claw of arm, the hand claw is including connecting handle, installation piece, lift cylinder and transplanting the cylinder, the one end of connecting handle is connected the arm, the other end is connected the installation piece, be connected with the lift cylinder of two relative settings on the installation piece, the lift cylinder is connected with a plurality of sucking discs, transplant the cylinder and connect the installation piece just is located two between the lift cylinder, the end-to-end connection who transplants the cylinder has the clamp splice for get and put the charging tray.

Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

Fig. 1 is a schematic structural diagram of a detection mechanism in an embodiment of the present application.

Fig. 2 is a schematic view of an assembly structure of a positioning assembly and a detection assembly in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a first angle of a positioning assembly according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a second angle of the positioning assembly according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a pre-push unit in an embodiment of the present application.

Fig. 6 is a schematic view of a partially assembled structure of a pre-pushing member of the pre-pushing unit in fig. 5.

Fig. 7 is a schematic structural diagram of a detection assembly according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a detection apparatus in an embodiment of the present application.

Fig. 9 is a schematic structural view of a robot of the inspection apparatus of fig. 8.

Fig. 10 is a schematic view of the structure of the gripper of the robot of fig. 9.

Description of the main elements

Detection mechanism 10

Positioning assembly 12

Pre-pressing assembly 14

Detection assembly 16

Sliding unit 120

Positioning plate 122

Initial positioning unit 124

Repositioning unit 126

First fixing member 1240

Second fixing member 1242

Movable member 1260

Support 140

Pre-push unit 142

Pre-push driver 1420

Preform 1422

Transmission member 160

Sensing unit 162

Groove 1220

Connecting plate 1262

Moving plate 1264

First driver 1266

Adsorption unit 128

Adsorption piece 1280

Second driving member 1200

Guide rail 1202

Sliding block 1204

Locating plate locking assembly 130

Locking block 1300

Retaining member 1302

Locking slot 1304

First connecting part 1423

Second connecting part 1424

Prepush bar 1425

First sensor 1426

Cavity 1427

First elastic part 1428

Probe 1429

First driving rod 1600

Second driving rod 1602

Floating assembly 164

Fixed shaft 1640

Second elastic member 1642

Support 1620

Second sensor 1622

Detection apparatus 100

Machine 102

Tray 104

Robot 106

Mechanical arm 1061

Paw 1062

Connecting handle 1062a

Mounting block 1062b

Lifting cylinder 1062c

Transplanting cylinder 1062d

Lift plate 1062e

Suction cup 1062f

Clamp 1062g

Tray frame 108

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, an embodiment of the present application provides a detecting mechanism 10, wherein the detecting mechanism 10 is used for detecting a welding point of a workpiece. The detection mechanism 10 comprises a positioning component 12, a prepressing component 14 and a detection component 16, wherein the positioning component 12 is used for positioning a workpiece, the prepressing component 14 is used for applying prepressing force to a welding point on the workpiece, and the detection component 16 is used for detecting whether the welding point on the workpiece is qualified.

The positioning assembly 12 includes a sliding unit 120, a positioning plate 122, a first positioning unit 124 and a second positioning unit 126, the positioning plate 122 is slidably connected to the sliding unit 120, the sliding unit 120 can drive the positioning plate 122 to move back and forth along a first direction, the first positioning unit 124 is disposed on the positioning plate 122, the first positioning unit 124 includes a first fixing member 1240 and a second fixing member 1242 vertically disposed on the positioning plate 122, the second positioning unit 126 includes a moving member 1260, the moving member 1260 is slidably disposed on the positioning plate 122 along the first direction, the moving member 1260 is perpendicular to the second fixing member 1242, and the first fixing member 1240, the second fixing member 1242 and the moving member 1260 enclose a station for placing a workpiece.

The pre-pressing assembly 14 includes a bracket 140 and a pre-pressing unit 142, the bracket 140 is disposed at one side of the positioning assembly 12, the pre-pressing unit 142 is disposed on the bracket 140 and located above the positioning assembly 12, the pre-pressing unit 142 includes a pre-pressing driving member 1420 and a pre-pressing member 1422, the pre-pressing driving member 1420 is connected to the bracket 140, the pre-pressing member 1422 is connected to the pre-pressing driving member 1420, the sliding unit 120 in the positioning assembly 12 can drive the positioning plate 122 to move below the pre-pressing member 1422 along a first direction, and the pre-pressing driving member 1420 can drive the pre-pressing member 1422 to move close to the positioning plate 122 along a second direction perpendicular to the first direction, so that the pre-pressing member 1422 applies a pre-pressing force to a welding point on a workpiece.

In this embodiment, the first direction is an X-axis direction, and the second direction is a Y-axis direction. It is understood that, in other embodiments, the first direction may also be a Y-axis direction, and the second direction may also be an X-axis direction, but is not limited thereto.

Referring to fig. 2, the detecting assembly 16 includes a driving member 160 and a sensing unit 162, a positioning plate 122 is provided with a groove 1220 for exposing a welding point on a workpiece, the driving member 160 is slidably disposed through the groove 1220, the sensing unit 162 is disposed below the positioning plate 122, the driving member 160 is pre-pressed by the pre-pressing member 1422 and then approaches the sensing unit 162 along a second direction, and the driving member 160 moves to contact with the sensing unit 162 to trigger the sensing unit 162. Wherein, the groove 1220 is located on the positioning plate 122 below the station.

When the workpiece positioning device works, a workpiece is placed on a station surrounded by the first fixing piece 1240, the second fixing piece 1242 and the moving piece 1260, the first fixing piece 1240 and the second fixing piece 1242 are fixedly arranged on the positioning plate 122 to play a limiting and stopping role on the workpiece, the moving piece 1260 slides along the first direction and is matched with the first fixing piece 1240 and the second fixing piece 1242 to clamp or loosen the workpiece, and therefore the positioning accuracy of the workpiece is improved.

The sliding unit 120 drives the positioning plate 122 to move to a position below the pre-pressing member 1422 along the first direction, so that the welding point to be detected on the workpiece corresponds to the pre-pressing member 1422, the pre-pressing member 1420 drives the pre-pressing member 1422 to approach the workpiece located on the positioning plate 122 along the second direction, and the pre-pressing member 1422 applies pre-pressure to the welding point on the workpiece to complete the pressure detection of the welding point, thereby improving the accuracy of the pre-pressing position of the workpiece.

If the welding spot is not broken by the pre-pressing part 1422, the welding spot on the workpiece is considered to be qualified, and if the welding spot is broken by the pre-pressing part 1422, the welding spot is extruded by the pre-pressing part 1422 and falls into the groove 1220 on the positioning board 122, then the pre-pushing driving part 1420 drives the pre-pressing part 1422 to continuously move along the second direction to contact with the transmission member 160, and the pre-pressing part 1422 presses the transmission member 160 to move to contact with the sensing unit 162, and then the sensing unit 162 is triggered, so as to determine that the welding spot on the workpiece is unqualified.

In another embodiment, a plurality of primary positioning units 124 may also be disposed on the positioning plate 122, the secondary positioning unit 126 includes a plurality of moving members 1260, and the first fixing member 1240 and the second fixing member 1242 of the plurality of primary positioning units 124 respectively enclose a plurality of stations for placing workpieces with the plurality of moving members 1260. The pre-pressing assembly 14 includes a plurality of pre-pressing units 142 disposed on the support 140. The plurality of stations and the plurality of pre-pushing units 142 are matched to simultaneously realize detection of welding spots of a plurality of workpieces, so that the detection efficiency is improved.

Referring to fig. 1, five preliminary positioning units 124 and five movable members 1260 are disposed on the positioning plate, and five pre-pushing units 142 are disposed on the bracket 140, so that five workpieces can be placed on five stations surrounded by the five preliminary positioning units 124 and the five movable members 1260, and welding points of the five workpieces can be simultaneously detected by the five pre-pushing units 142. It is understood that in other embodiments, the number of primary positioning units 124 and movable members 1260 is not limited thereto.

Referring to fig. 2, in another embodiment, the positioning assembly 12 further includes a positioning plate locking assembly 130, the positioning plate locking assembly 130 includes a locking block 1300 and a locking member 1302 cooperating with the locking block 1300, the locking block 1300 is disposed on the positioning plate 122, and the locking block 1300 is provided with a locking groove 1304, the locking member 1302 is connected to the bracket 140, and when the positioning plate 122 moves to a position corresponding to the pre-pressing member 1422, one end of the locking member 1302 is clamped in the locking groove 1304 of the locking block 1300 to lock and fix the positioning plate 122.

In one embodiment of this embodiment, the locking member 1302 can be a telescopic cylinder, and the output end of the telescopic cylinder is engaged with the slot of the locking groove 1304.

It is understood that in other embodiments, the positioning plate locking assembly 130 can be configured in other structures as long as the positioning plate 122 moved to the corresponding position of the preload member 1422 can be locked and fixed.

Referring to fig. 3, in an embodiment, the first fixing member 1240 and the second fixing member 1242 are both fixed plates disposed on the positioning plate 122, and the length direction of the second fixing member 1242 is the same as the first direction, wherein the first direction indicates the moving direction of the positioning plate 122 along the sliding unit 120; the movable member 1260 comprises a connecting plate 1262 and a plurality of movable plates 1264 vertically arranged on the connecting plate 1262, wherein the connecting plate 1262 is movably arranged on the positioning plate 122, the length direction of the movable plates 1264 is arranged along a first direction, and thus, the first fixing member 1240, the second fixing member 1242 and the movable plates 1264 define a station for placing workpieces.

It will be appreciated that in other embodiments, the first fixing member 1240 and the second fixing member 1242 may be provided as other fixing members, as long as they can be enclosed with the moveable member to form a work station for placing a workpiece, and cooperate with the moveable member to achieve the effect of limiting and stopping the workpiece.

It is to be understood that in other embodiments, the movable plate 1264 of the movable member 1260 may be provided as a unitary push plate, so long as clamping or unclamping of the workpiece is achieved.

Referring to fig. 3, in another embodiment, the positioning assembly 12 further includes an absorption unit 128, and the absorption unit 128 includes a plurality of absorption members 1280 disposed in the station.

In an embodiment of this embodiment, the adsorbing member 1280 is configured as a vacuum chuck to adsorb and fix the workpiece placed on the station, so as to increase the stability of the workpiece after being placed.

Referring to fig. 4, fig. 4 is a bottom view of the positioning unit in an embodiment of the present application to illustrate a bottom structure of the positioning plate 122.

In this embodiment, the repositioning unit 126 further includes a first driving element 1266, the first driving element 1266 is disposed on the positioning plate 122 and connected to the moving element 1260, so as to drive the moving element 1260 to move toward the first fixing element 1240 along the first direction, so as to clamp or release the workpiece, thereby improving the degree of automation of workpiece positioning.

In an embodiment of the present invention, the first driving member 1266 is configured as a telescopic cylinder and is disposed at the bottom of the positioning plate 122, the first driving member 1266 is connected to the connecting plate 1262, the first driving member 1266 drives the connecting plate 1262 to move, and the connecting plate 1262 drives the plurality of movable plates 1264 to move, so as to tighten or loosen the workpiece located at the station.

It will be appreciated that in other embodiments, the first driving member 1266 may be provided as another powered member that is capable of moving the movable member 1260 to effect clamping or unclamping of a workpiece.

Referring to fig. 4, in an embodiment, the sliding unit 120 of the positioning assembly 12 includes a second driving member 1200, a guide rail 1202 and a sliding block 1204, the second driving member 1200 is connected to the positioning plate 122, the positioning plate 122 is slidably connected to the guide rail 1202 through the sliding block 1204, and the second driving member 1200 drives the positioning plate 122 to move along the first direction to a position corresponding to the preload member 1422 in cooperation with the guide rail 1202.

In an embodiment of the present invention, two parallel guide rails 1202 are disposed on two sides of the positioning plate 122 perpendicular to the first direction, and two corresponding sliding blocks 1204 are disposed, so as to improve the stability of the positioning plate 122 during the sliding process along the guide rails 1202.

It is understood that, in other embodiments, the sliding unit 120 may also be configured as a rolling type or a chain type, as long as the positioning plate 122 can be driven to move, so as to achieve the corresponding effect of the positioning plate 122 and the preload part 1422.

Referring to fig. 5, in an embodiment, the pre-pressing member 1422 of the pre-pressing assembly 14 includes a first connecting member 1423, a second connecting member 1424 connected to the first connecting member 1423, and a pre-pressing rod 1425 connected to the second connecting member 1424, the first connecting member 1423 is connected to the pre-pressing driving member 1420, and the pre-pressing driving member 1420 drives the pre-pressing rod 1425 to move close to the positioning plate 122 along a second direction through the first connecting member 1423 and the second connecting member 1424, so that the pre-pressing rod 1425 applies pre-pressing force to the welding point on the workpiece.

In an embodiment of the present invention, there are two welding spots on one side of the workpiece, and the second connecting part 1424 and the pre-pushing bar 1425 are both provided with two welding spots to match with two welding spots to be detected on the workpiece, so as to improve the detection efficiency.

In an embodiment of the present invention, the pre-pressing driving member 1420 is configured as an air cylinder, and it should be understood that in other embodiments, the pre-pressing driving member 1420 may also be configured as another power member as long as it can drive the pre-pressing member 1422 to move, so as to achieve the effect that the pre-pressing member 1422 applies the pre-pressing force to the welding point on the workpiece.

In another embodiment, two welding spots are welded on two sides of the workpiece, and the pre-pushing unit 142 includes two pre-pushing driving members 1420, referring to fig. 5, each pre-pushing driving member 1420 is connected to a pre-pressing member 1422, and the two pre-pressing members 1422 are driven by the two pre-pushing driving members 1420 to move toward the positioning plate 122 along the second direction, so that the two pre-pressing members 1422 apply different pre-pressures to the welding spots on the two sides of the workpiece, respectively, thereby detecting the welding spots on the two sides of the workpiece. It is understood that in other embodiments, the number of pre-pushing units 142 may be one, three, four, etc. to preferentially match the position of the welding point on the workpiece.

Referring to fig. 6, in another embodiment, the pre-pressing member 1422 further includes a first sensor 1426 connected between the second connecting member 1424 and the pre-pressing rod 1425, the pre-pressing rod 1425 has a cavity 1427, a first elastic member 1428 and a probe 1429 are disposed in the cavity 1427, one end of the first elastic member 1428 abuts against the first sensor 1426, the other end of the first elastic member 1428 abuts against the probe 1429, and one end of the probe 1429, which is far away from the first elastic member 1428, extends out of the end of the pre-pressing rod 1425 to act on a solder point on the workpiece.

During operation, the pre-pressing member 1422 moves downwards under the driving of the pre-pushing driving member 1420, the probe 1429 in the pre-pressing member 1422 contacts with a welding point on a workpiece, the probe 1429 generates an acting force with the welding point, the acting force is transmitted to the first sensor 1426 through the first elastic member 1428, the first sensor 1426 responds to a pressure value of the first sensor 1426 to a monitoring platform through a sensing device externally connected to the detection mechanism 10, and the magnitude of the applied force of the pre-pushing driving member 1420 is controlled and adjusted by the detection platform, so as to complete detection of the pressure value of the welding point.

In an embodiment of the present invention, the first elastic member 1428 is a return spring, and the first sensor 1426 is a pressure sensor, but it should be understood that in other embodiments, the first elastic member 1428 may be provided as another member having a return function.

Referring to fig. 2 and fig. 7, in an embodiment, the driving member 160 in the detecting assembly 16 includes a first driving rod 1600 and a second driving rod 1602 vertically disposed in the recess 1220, two floating assemblies 164 are connected between two ends of the first driving rod 1600 and the positioning plate 122, each floating assembly 164 includes a fixing shaft 1640 and a second elastic member 1642, the fixing shaft 1640 is connected to the first driving rod 1600, the second elastic member 1642 is sleeved on the fixing shaft 1640, one end of the second elastic member 1642 abuts against the first driving rod 1600, the other end of the second elastic member 1642 abuts against the positioning plate 122, one end of the second driving rod 1602 is connected to the first driving rod 1600, and the other end of the second driving rod 1602 extends out of the positioning plate 122 for triggering the sensing unit 162.

Further, the sensing unit 162 of the detecting assembly 16 includes a supporting member 1620 and a second sensor 1622, wherein the supporting member 1620 is disposed below the positioning plate 122 and connected to the positioning plate 122, and the second sensor 1622 is mounted on the supporting member 1620 and located below the second transmission rod 1602 for detecting the pressure signal of the second transmission rod 1602.

During operation, if the detection welding spot is not broken by the pre-pressing part 1422, the welding spot on the workpiece is considered to be qualified, if the detection welding spot is broken by the pre-pressing part 1422, the detection welding spot falls into the groove 1220 on the positioning plate 122, the pre-pressing part 1422 is driven by the pre-pushing driving part 1420 to continuously push the first transmission rod 1600 along the second direction, two ends of the first transmission rod 1600 are supported by the second elastic part 1642, the middle part of the first transmission rod 1600 transmits the received force to the second transmission rod 1602, the second transmission rod 1602 moves along the second direction after receiving the pressure of the first transmission rod 1600, the second transmission rod 1602 moves to contact with the second sensor 1622, the second sensor 1622 is triggered, and a pressure signal is detected, which indicates that the welding spot on the workpiece is unqualified.

In one embodiment of this embodiment, the second sensor 1622 is a pressure sensor.

Referring to fig. 8, another embodiment of the present application provides an inspection apparatus 100, which includes the inspection mechanism 10 described in the above embodiment, and further includes a machine 102, a tray 104, and a robot 106. Wherein, the detection mechanism 10 is arranged on the machine table 102; the tray 104 is arranged adjacent to the machine table 102 and used for placing workpieces; the robot 106 is disposed adjacent to the machine 102 for picking and placing the workpiece from the tray 104 and picking and placing the workpiece in the inspection mechanism 10.

In one embodiment of the present invention, two detection mechanisms 10 are provided, and two robots 106 are provided, so as to improve the detection efficiency of the welding points of the workpiece. It is understood that in other embodiments, the number of the detection mechanisms 10 and the number of the manipulators 106 in the detection apparatus 100 are not limited herein, and the detection mechanisms 10 and the manipulators 106 may be provided in one or more.

Referring to fig. 9, in an embodiment of the present invention, the robot 106 includes a robot 1061 and a gripper 1062 connected to the robot 1061.

Further, referring to fig. 10, the gripper 1062 includes a connecting handle 1062a, an installation block 1062b, a lifting cylinder 1062c and a transplanting cylinder 1062d, one end of the connecting handle 1062a is connected to the mechanical arm 1061, the other end of the connecting handle 1062a is connected to the installation block 1062b, the installation block 1062b is connected to two oppositely disposed lifting cylinders 1062c, the lifting cylinder 1062c is connected to a lifting plate 1062e, the lifting plate 1062e is provided with a plurality of suction cups 1062f, the transplanting cylinder 1062d is connected to the installation block 1062b and located between the two lifting cylinders 1062c, and the end of the transplanting cylinder 1062d is connected to a clamping block 1062g for taking and placing the tray 104.

In an embodiment of the present invention, two clamping blocks 1062g are provided, and a space is provided between the two clamping blocks 1062g, which correspond to the two trays 104 placed on the tray rack 108, when in use, each clamping block 1062g corresponds to one tray 104, and the two clamping blocks 1062g are relatively close to form a clamping force, so as to take and place the two trays 104.

During operation, the tray 104 is located on the tray rack 108, the tray rack 108 is set to be two, the tray rack 108 is respectively placed on the left side and the right side of the machine table 102, the manipulator 106 is two, the manipulator is respectively arranged corresponding to the two tray racks 108, wherein workpieces in the tray 104 placed on the tray rack 108 on the left side are not detected, the manipulator 106 drives the workpieces in the tray 104 on the left side to a station in the detection mechanism 10 through the suction disc 1062f, pressure detection is performed on welding spots on the workpieces by using the detection mechanism 10 to judge whether the welding spots of the workpieces are qualified, if the workpieces are not detected, the manipulator 106 on the right side is adsorbed by the station and transferred to the tray 104 on the right side, and the remaining workpieces which are detected to be qualified are transferred to the tray rack 108 on the right side by using the manipulator 106 integrally to transfer the tray 104 to perform subsequent processes.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A detection mechanism for detecting a welding spot of a workpiece, comprising:

the positioning assembly comprises a sliding unit, a positioning plate, a primary positioning unit and a secondary positioning unit, the positioning plate is connected with the sliding unit in a sliding mode, the primary positioning unit comprises a first fixing piece and a second fixing piece which are vertically arranged on the positioning plate, the secondary positioning unit comprises a moving piece, the moving piece is arranged on the positioning plate in a sliding mode along a first direction and is vertical to the second fixing piece, and a station for placing a workpiece is defined by the first fixing piece, the second fixing piece and the moving piece;

the prepressing assembly comprises a support and a prepressing unit, the prepressing unit is arranged above the positioning assembly and comprises a prepressing driving piece and a prepressing piece, the prepressing driving piece is connected with the support and connected with the prepressing driving piece, the sliding unit is used for driving the positioning plate to move to the position below the prepressing piece along the first direction, and the prepressing driving piece is used for driving the prepressing piece to move close to the positioning plate along a second direction perpendicular to the first direction so as to enable the prepressing piece to apply preset pressure to welding spots on the workpiece;

the detection assembly comprises a transmission part and a sensing unit, wherein a groove for exposing a welding spot on the workpiece is formed in the positioning plate, the transmission part penetrates through the groove in a sliding mode, the sensing unit is arranged below the positioning plate, and the transmission part is abutted and pressed by the pre-pressing part, is close to the sensing unit in the second direction, moves and contacts with the sensing unit to trigger the sensing unit.

2. The sensing mechanism as claimed in claim 1, wherein the pre-pressing member includes a first connecting member, a second connecting member connected to the first connecting member, and a pre-pushing rod connected to the second connecting member, the first connecting member is connected to the pre-pushing driving member, and the pre-pushing driving member drives the pre-pushing rod to move in the second direction close to the positioning plate through the first connecting member and the second connecting member.

3. The sensing mechanism of claim 2, wherein the pre-compression member further comprises a first sensor connected between the second connector and the pre-compression rod, the pre-compression rod is provided with a cavity, a first elastic member and a probe are arranged in the cavity, one end of the first elastic member abuts against the first sensor, the other end of the elastic member abuts against the probe, and one end of the probe far away from the first elastic member extends out of the tail end of the pre-compression rod.

4. The detecting mechanism according to claim 1, wherein the transmission member includes a first transmission rod and a second transmission rod vertically disposed in the recess, two floating assemblies are connected between two ends of the first transmission rod and the positioning plate, each floating assembly includes a fixed shaft and a second elastic member, the fixed shaft is connected to the first transmission rod, the second elastic member is sleeved on the fixed shaft, one end of the second elastic member abuts against the first transmission rod, the other end of the elastic member abuts against the positioning plate, one end of the second transmission rod is connected to the first transmission rod, and the other end of the second transmission rod extends out of the positioning plate for triggering the sensing unit.

5. The detecting mechanism according to claim 4, wherein the sensing unit includes a supporting member and a second pressure sensor, the supporting member is disposed below the positioning plate and connected to the positioning plate, and the second pressure sensor is mounted on the supporting member and located below the second transmission rod for detecting the pressure signal of the second transmission rod.

6. The detecting mechanism as claimed in claim 1, wherein the repositioning unit further includes a first driving member disposed on the positioning plate and connected to the movable member for driving the movable member to move toward the first fixing member to clamp or unclamp the workpiece.

7. The detecting mechanism according to claim 1, wherein the sliding unit includes a second driving member, a guide rail and a slider, the second driving member is connected to the positioning plate, the positioning plate is connected to the guide rail through the slider, and the second driving member drives the positioning plate to move along the first direction in cooperation with the guide rail.

8. The inspection mechanism of claim 1, wherein said positioning assembly further comprises an adsorption unit, said adsorption unit comprising a plurality of adsorption members disposed within said station.

9. A detection apparatus comprising the detection mechanism of any one of claims 1 to 8, further comprising:

the detection mechanism is arranged on the machine table;

the material tray is used for placing a workpiece;

and the mechanical arm is used for taking and placing the workpiece from the material tray and taking and placing the workpiece on the detection mechanism.

10. The detection device according to claim 9, wherein the manipulator comprises a mechanical arm and a gripper connected with the mechanical arm, the gripper comprises a connecting handle, a mounting block, a lifting cylinder and a transplanting cylinder, one end of the connecting handle is connected with the mechanical arm, the other end of the connecting handle is connected with the mounting block, the mounting block is connected with two oppositely arranged lifting cylinders, the lifting cylinders are connected with a plurality of suckers, the transplanting cylinder is connected with the mounting block and is positioned between the two lifting cylinders, and the tail end of the transplanting cylinder is connected with a clamping block for taking and placing the material tray.