Position detection device

Abstract

A position detection device comprises a base which is provided with a bearing table for bearing a first workpiece; the positioning mechanism is slidably arranged on the bearing table and used for positioning the first workpiece; the detection mechanism comprises a first detection assembly, the first detection assembly is arranged on the base in a sliding mode and is adjacent to the bearing table, and the first detection assembly is used for being nested with the second workpiece to detect the position of the second workpiece; and the alarm mechanism is arranged on the base and connected with the detection mechanism, and when the first detection assembly makes contact with the second workpiece to enable the first detection assembly, the alarm mechanism, the base and the first workpiece to form a closed loop, the alarm mechanism sends out an alarm signal to indicate that the second workpiece deviates from the preset position. The position detection device is accurate in detection and high in detection efficiency, and deformation of the second workpiece is not prone to being caused in the detection process.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a position detection device. Background Art

[0002] When producing electronic products such as mobile phones, it is usually necessary to weld some parts such as nuts or hooks on the cover plate. In order to detect the position accuracy of part welding, conventional detection methods include two-dimensional optical projection measurement, three-dimensional contact measurement, and go / no-go gauge mechanism measurement. However, the two-dimensional optical projection measurement method has low detection efficiency, the three-dimensional contact measurement is prone to cause deformation of the workpiece, and the go / no-go gauge mechanism is prone to misjudgment during the measurement process. Therefore, there is an urgent need for a detection mechanism that is accurate and efficient, and not prone to causing deformation of the workpiece during detection. Utility Model Content

[0003] In view of the above, it is necessary to propose a position detection device to meet the requirements of accurate detection and high detection efficiency, and not easily cause deformation of the workpiece during the detection process.

[0004] An embodiment of the present application provides a position detection device for detecting whether a second workpiece carried on a first workpiece is in a preset position, the position detection device comprising a base, the base being provided with a carrying platform for carrying the first workpiece; a positioning mechanism slidably arranged on the carrying platform, the positioning mechanism being used to position the first workpiece; a detection mechanism arranged on the base and located on one side of the carrying platform, the detection mechanism comprising a first detection component, the first detection component being arranged on the base and adjacent to the carrying platform, the first detection component being used to be nested with the second workpiece to detect the position of the second workpiece; an alarm mechanism being arranged on the base and connected to the first detection component; wherein, when the first detection component contacts the second workpiece so that the first detection component, the alarm mechanism, the base and the first workpiece form a closed loop, the alarm mechanism sends out an alarm signal to indicate that the second workpiece deviates from the preset position.

[0005] When using the above position detection device, the first workpiece is placed on the carrier, and the positioning mechanism positions the first workpiece, so that the first detection component and the second workpiece are nested. When the first detection component contacts the second workpiece, the alarm mechanism sends out an alarm signal, indicating that the second workpiece position installation is unqualified at this time. When the alarm mechanism does not send out an alarm signal, it indicates that the second workpiece position installation is qualified. Since the operator can quickly and accurately determine whether the second workpiece is installed properly based on the prompt signal of the alarm mechanism, the above position detection device improves the detection efficiency. When detecting a qualified second workpiece, since the detection mechanism will not touch the second workpiece, deformation of the second workpiece can be avoided.

[0006] In some embodiments, the second workpiece includes a hook and a nut, the first detection component is used to detect the hook, and the detection mechanism also includes a second detection component, which is arranged on the side of the base away from the supporting platform and is connected to the first detection component, and the second detection component is used to pass through the supporting platform and be inserted into the nut to detect the position of the nut.

[0007] In some embodiments, the first detection component includes a first insulating member, which is connected to the base and is arranged adjacent to the supporting platform; a connecting member, which is arranged on the first insulating member and connected to the alarm mechanism; a detection member, which is slidably inserted into the connecting member, and both ends of the detection member protrude from the connecting member, and one end of the detection member is provided with a slot for nesting with the hook, and when the slot wall of the slot contacts the hook, the detection member, the hook, the connecting member, the alarm mechanism, the base and the first workpiece form a closed loop; an elastic member, which is sleeved on the detection member, one end of the elastic member abuts against the connecting member, and the other end of the elastic member abuts against the other end of the detection member, and the elastic member is used to keep the detection member away from the hook.

[0008] In some embodiments, the base is provided with a through hole passing through the supporting platform, and the second detection component includes a second insulating member connected to the side of the base facing away from the supporting platform; a support member connected to the second insulating member; a conductive member, one end of which is connected to the support member, and the other end of which passes through the second insulating member and the base to be connected to the connecting member, and the conductive member is spaced apart from the base; a guide member connected to the support member and passing through the second insulating member; a measuring member slidably penetrated through the guide member, one end of which protrudes out of the guide member and the through hole and is inserted into the nut; a reset member is sleeved on the measuring member, one end of which abuts against the support member, and the other end of which abuts against the other end of the measuring member, and the reset member is used to keep the measuring member away from the nut; wherein, when the measuring member contacts the nut, the measuring member, the nut, the support member, the conductive member, the connecting member, the alarm mechanism, the base and the first workpiece form a closed loop, and the alarm mechanism alarms to indicate that the nut deviates from the preset position.

[0009] In some embodiments, the alarm mechanism includes a power supply component, which is arranged on the base, and the negative pole of the power supply component is connected to the base; an alarm component, which has a first pin and a second pin, the first pin is connected to the positive pole of the power supply component, and the second pin is connected to the first detection component, wherein when the first detection component contacts the second workpiece so that the first detection component, the second workpiece, the alarm component, the power supply component, the base and the first workpiece form a closed loop, the alarm component sends an alarm signal to indicate that the second workpiece deviates from a preset position.

[0010] In some embodiments, the position detection device also includes a fixing mechanism, which is connected to the base and located on one side of the supporting platform, and is used to press the first workpiece against the supporting platform; wherein the fixing mechanism includes a driving assembly, which is provided on the base and located on one side of the supporting platform; and a pressing member, which is connected to the driving assembly and is arranged opposite to the supporting platform, and is used to press the first workpiece on the supporting platform under the drive of the driving assembly.

[0011] In some embodiments, the driving assembly includes a driving unit, which is arranged on the base; a connecting rod, one end of which is connected to the driving unit, and the other end of the connecting rod is driven by the driving unit to move closer to or away from the first workpiece; a movable block, one end of which is rotatably connected to the other end of the connecting rod, and the other end of the movable block is rotatably connected to the pressure member, the center line of the movable block rotating around the connecting rod is perpendicular to the center line of the pressure member rotating around the movable block, and the movable block is used to follow the movement of the connecting rod to drive the pressure member to press or release the first workpiece.

[0012] In some embodiments, the driving unit includes a sleeve, which is provided on the base; a pull rod, which is slidably connected in the sleeve, and one end of the pull rod is connected to the connecting rod; an elastic pulling member, which is sleeved on the pull rod, and one end of the elastic pulling member abuts against the end of the sleeve away from the connecting rod, and the other end of the elastic pulling member abuts against the other end of the pull rod; a handle, which is rotatably connected to the end of the pull rod protruding from the sleeve, and the handle abuts against the top surface of the sleeve, and the handle is used to rotate along the top surface of the sleeve when rotating to drive the pull rod to slide, and make the pull rod bring the pressing member closer to or away from the first workpiece through the connecting rod.

[0013] In some embodiments, the pull rod can rotate relative to the sleeve to drive the pressing member connected to the connecting rod to move away from the first workpiece; a receiving groove is provided on the handle, and one end of the pull rod protruding from the sleeve extends into the receiving groove and is connected to the connecting rod; the sleeve comprises: a main body, which is arranged on the base, and the pull rod is slidably connected to the main body; a guide portion, which is convexly arranged on the top surface of the main body and is located in the receiving groove, and the guide portion abuts against the groove wall of the receiving groove, and the guide portion is used to guide the handle when the handle rotates following the pull rod; two limiting portions, which are connected to opposite sides of the guide portion, and the two limiting portions are located in the receiving groove and are used to limit the rotation range of the handle.

[0014] In some embodiments, the positioning mechanism includes a main positioning member, which is slidably inserted into the supporting platform, and one end of the main positioning member is used to position the first workpiece; an auxiliary positioning member, which is slidably inserted into the supporting platform and spaced apart from the main positioning member, and one end of the auxiliary positioning member is used to position the first workpiece; two elastic push-up members, which are respectively sleeved on the main positioning member and the auxiliary positioning member, wherein the two ends of one of the elastic push-up members are respectively abutted against the main positioning member and the base, and the two ends of the other elastic push-up member are respectively abutted against the auxiliary positioning member and the base, and the two elastic push-up members are used to make the main positioning member and the auxiliary positioning member elastically contact with the first workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the position detection device provided in an embodiment of the present application.

[0016] Figure 2 yes Figure 1 The three-dimensional structural schematic diagram of the first workpiece and the second workpiece to which the position detection device is applicable is shown.

[0017] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the position detection device from another perspective is shown.

[0018] Figure 4 yes Figure 3 The position detection device shown is a schematic cross-sectional view along line IV-IV.

[0019] Figure 5 yes Figure 1 The three-dimensional structural schematic diagram of the positioning mechanism in the position detection device shown.

[0020] Figure 6 yes Figure 1 The position detection device shown is a schematic cross-sectional view along line VI-VI.

[0021] Figure 7 yes Figure 1 A schematic diagram of the three-dimensional structure of the fixing mechanism in the position detection device shown.

[0022] Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure of the sleeve in the fixing mechanism shown.

[0023] Fig. 9 yes Figure 1 A schematic diagram of the three-dimensional structure of a portion of a first detection component and a second workpiece in a position detection device is shown.

[0024] Fig.10 yes Figure 1 The position detection device shown is a schematic cross-sectional view along line XX.

[0025] Main component symbols

[0026] Position detection device 100

[0027] Base 10

[0028] Loading platform 11

[0029] Slide hole 12

[0030] Mounting block 13

[0031] Through hole 14

[0032] Accommodating hole 15

[0033] Positioning mechanism 20

[0034] Main positioning member 21

[0035] Auxiliary positioning piece 22

[0036] Elastic ejector 23

[0037] Fixing mechanism 30

[0038] Drive assembly 31

[0039] Drive unit 311

[0040] Connecting rod 312

[0041] Activity Block 313

[0042] Sleeve 314

[0043] Main body 3141

[0044] Guide 3142

[0045] Limiting part 3143

[0046] Tie rod 315

[0047] Elastic pull piece 316

[0048] Handle 317

[0049] Receiving groove 3171

[0050] Pressing member 32

[0051] Testing agency 40

[0052] The first detection component 41

[0053] First insulating member 411

[0054] Connector 412

[0055] Test piece 413

[0056] Elastic member 414

[0057] Slot 415

[0058] The second detection component 42

[0059] The second insulating member 421

[0060] Support 422

[0061] Conductive Parts 423

[0062] Guide 424

[0063] Measuring piece 425

[0064] Reset 426

[0065] Alarm Agency 50

[0066] Alarm 51

[0067] First pin 511

[0068] Second pin 512

[0069] Power supply component 52

[0070] Shell 521

[0071] Elastic supporting member 522

[0072] Power Supply 523

[0073] Insulation sleeve 524

[0074] First workpiece 200

[0075] Round hole 201

[0076] Second workpiece 202

[0077] Hook 203

[0078] Nut 204 DETAILED DESCRIPTION

[0079] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0080] In the description of the present application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0081] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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, an electrical connection, or mutual communication, it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0082] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0083] See also Figure 1 and Figure 2 , an embodiment of the present application provides a position detection device 100. The position detection device 100 is used to detect whether the second workpiece 202 carried by the first workpiece 200 is in a preset position. In this embodiment, two round holes 201 are provided on the first workpiece 200, and the second workpiece 202 includes a hook 203 and a nut 204, and the hook 203 and the nut 204 are both welded to the first workpiece 200. The position detection device 100 is used to detect whether the welding position of the hook 203 and the nut 204 is in the preset position.

[0084] For ease of understanding, Figure 1 A three-dimensional coordinate system is established for auxiliary explanation. The directions of the X-axis, Y-axis and Z-axis are shown in the figure, and the X-axis, Y-axis and Z-axis are perpendicular to each other.

[0085] See also Figure 1 and Figure 2 The position detection device 100 includes a base 10, a positioning mechanism 20, a fixing mechanism 30, a detection mechanism 40 and an alarm mechanism 50.

[0086] A carrying platform 11 is disposed on the base 10 . For example, the carrying platform 11 may be in a rectangular block shape, and the top surface of the carrying platform 11 is used to carry the first workpiece 200 .

[0087] The positioning mechanism 20 is slidably disposed on the carrier platform 11 . When the first workpiece 200 is placed on the carrier platform 11 , the positioning mechanism 20 positions the first workpiece 200 . Specifically, the positioning mechanism 20 is inserted into two circular holes 201 of the first workpiece 200 , thereby positioning the first workpiece 200 .

[0088] The fixing mechanism 30 is connected to the base 10 and is located at one side of the carrying platform 11 . When the first workpiece 200 is placed on the carrying platform 11 , the fixing mechanism 30 presses the first workpiece 200 against the carrying platform 11 .

[0089] See also Figure 2 and Figure 3 The detection mechanism 40 is disposed on the base 10, and the detection mechanism 40 is located on one side of the carrier 11. The detection mechanism 40 includes a first detection component 41, and the first detection component 41 is disposed on the base 10 and adjacent to the carrier 11. The first detection component 41 is used to detect the position of the hook 203. During the detection process, the first detection component 41 is made close to the second workpiece 202, and the first detection component 41 and the second workpiece 202 are nested. It should be noted that the nesting here means that the first detection component 41 can be inserted into the second workpiece 202 or the second workpiece 202 can be inserted into the first detection component 41.

[0090] See also Figure 3 and Figure 4 The alarm mechanism 50 is disposed on the base 10 and connected to the first detection component 41 , and the alarm mechanism 50 is used for alarming.

[0091] When detecting the position of the hook 203 of the second workpiece 202, the first detection component 41 is nested with the hook 203; when the first detection component 41 contacts the hook 203, at this time, the first detection component 41, the hook 203, the alarm mechanism 50, the base 10 and the first workpiece 200 form a closed loop, and the alarm mechanism 50 sends out an alarm signal. When the operator receives the alarm signal, it can be determined that the hook 203 is not in the preset position, and the detection result of the hook 203 is unqualified; when the first detection component 41 does not contact the hook 203, the alarm mechanism 50 does not send out an alarm signal, and the operator can determine that the hook 203 has been installed to the preset position, and the detection result of the hook 203 is qualified.

[0092] When the position detection device 100 is used to detect the hook 203, the operator can directly determine whether the hook 203 is a qualified product based on the alarm signal of the alarm mechanism 50. Therefore, the operator can not only accurately obtain the detection result, but also the position detection device 100 improves the detection efficiency of the hook 203. In addition, when the detected hook 203 is a qualified product, since the first detection component 41 does not contact the hook 203, the hook 203 will not be deformed.

[0093] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The positioning mechanism 20 includes a main positioning member 21, an auxiliary positioning member 22 and two elastic ejection members 23. The main positioning member 21 and the auxiliary positioning member 22 are both slidably arranged on the support platform 11, and the two are arranged at intervals. Specifically, the base 10 is provided with two sliding holes 12 adapted to the main positioning member 21 and the auxiliary positioning member 22, the sliding holes 12 penetrate the support platform 11, the main positioning member 21 and the auxiliary positioning member 22 are slidably connected in the corresponding sliding holes 12, and the two ends of the main positioning member 21 and the auxiliary positioning member 22 protrude from the corresponding sliding holes 12 respectively.

[0094] The elastic ejector 23 may be a spring, and the two elastic ejector members 23 are respectively sleeved on the main positioning member 21 and the auxiliary positioning member 22, wherein the two ends of one elastic ejector member 23 are respectively in contact with the main positioning member 21 and the base 10, and the two ends of the other elastic ejector member 23 are respectively in contact with the auxiliary positioning member 22 and the base 10. Specifically, a mounting block 13 is provided on the bottom surface of the base 10, and one end of the main positioning member 21 and the auxiliary positioning member 22 are respectively slidably connected to the mounting block 13, wherein the two ends of one elastic ejector member 23 are respectively in contact with the main positioning member 21 and the mounting block 13 of the base 10, and the two ends of the other elastic ejector member 23 are respectively in contact with the auxiliary positioning member 22 and the mounting block 13 of the base 10.

[0095] In this embodiment, the end of the main positioning member 21 protruding from the carrier 11 is truncated, and the maximum diameter of the truncated end of the main positioning member 21 is greater than the diameter of the circular hole 201. Therefore, when the main positioning member 21 locates the first workpiece 200, part of the structure of the main positioning member 21 is inserted into the circular hole 201, and part of the structure of the main positioning member 21 abuts the bottom surface of the first workpiece 200. The auxiliary positioning member 22 adopts a chamfered design, and the end of the auxiliary positioning member 22 after chamfering is a long strip, and is extended along the X-axis direction. One side of the rod of the auxiliary positioning member 22 after chamfering is a plane, which can prevent the auxiliary positioning member 22 from rotating, so that the end of the auxiliary positioning member 22 is always extended along the X-axis direction. It should be noted that the two ends of the long strip end are inclined, and when the auxiliary positioning member 22 locates the first workpiece 200, part of the structure of the auxiliary positioning member 22 is inserted into the corresponding circular hole 201, and part of the structure of the auxiliary positioning member 22 abuts the bottom surface of the first workpiece 200.

[0096] When the first workpiece 200 is placed on the supporting platform 11, the truncated cone-shaped end of the main positioning member 21 and the elongated strip end of the auxiliary positioning member 22 are inserted into the two circular holes 201. The main positioning member 21 plays a major positioning role in the first workpiece 200, and the auxiliary positioning member 22 is used to assist in positioning the first workpiece 200. Since the shapes of the end of the main positioning member 21 used to position the first workpiece 200 and the end of the auxiliary positioning member 22 used to position the first workpiece 200 are different, the problem that the main positioning member 21 and the auxiliary positioning member 22 cannot be inserted into the first workpiece 200 at the same time can be avoided when positioning the first workpiece 200, thereby improving its versatility.

[0097] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 The fixing mechanism 30 includes a driving assembly 31 and a pressing member 32. The driving assembly 31 is provided on the base 10 and is located on one side of the carrier 11. The pressing member 32 is connected to the driving assembly 31 and is arranged opposite to the carrier 11. When the first workpiece 200 is positioned on the carrier 11, the driving assembly 31 drives the pressing member 32 to press against the first workpiece 200, so as to press the first workpiece 200 against the carrier 11. At the same time, the main positioning member 21 and the auxiliary positioning member 22 press against the first workpiece 200 from the bottom surface of the first workpiece 200 under the elastic action of the corresponding elastic push members 23. At this time, the first workpiece 200 is accurately positioned on the carrier 11 under the coordinated action of the positioning mechanism 20 and the fixing mechanism 30, thereby preventing the first workpiece 200 from shaking, which helps to ensure the accuracy and stability of subsequent measurements.

[0098] In this embodiment, the driving assembly 31 includes a driving unit 311, a connecting rod 312 and a movable block 313. One end of the connecting rod 312 is connected to the driving unit 311, the other end of the connecting rod 312 is rotatably connected to one end of the movable block 313, the other end of the movable block 313 is rotatably connected to the pressing member 32, and the center line of rotation of the movable block 313 around the connecting rod 312 is perpendicular to the center line of rotation of the pressing member 32 around the movable block 313. When the driving unit 311 drives the connecting rod 312 to move, the connecting rod 312 can drive the movable block 313 and the pressing member 32 to approach or move away from the first workpiece 200, so as to press or release the first workpiece 200. Since the movable block 313 can rotate relative to the connecting rod 312 and the pressing member 32 can rotate relative to the movable block 313, when the pressing member 32 presses the first workpiece 200, the pressing member 32 can adaptively adjust its own position, so that the pressing member 32 can fit the first workpiece 200 and press the first workpiece 200 to avoid damaging the first workpiece 200.

[0099] Specifically, the driving unit 311 includes a sleeve 314, a pull rod 315, an elastic pulling member 316 and a handle 317. The sleeve 314 is disposed on the base 10, and specifically, the sleeve 314 is vertically connected to the support platform 11. The pull rod 315 is slidably connected in the sleeve 314, one end of the pull rod 315 protrudes from the sleeve 314 and is connected to the connecting rod 312, and the other end of the pull rod 315 protrudes from the bottom surface of the base 10.

[0100] The elastic pulling member 316 may be a spring, which is sleeved on the pull rod 315, and one end of the elastic pulling member 316 abuts against one end of the sleeve 314 away from the connecting rod 312, and the other end of the elastic pulling member 316 abuts against the other end of the pull rod 315. Under the action of the elastic pulling member 316, the pull rod 315 drives the connecting rod 312 to abut against the sleeve 314.

[0101] The handle 317 is rotatably connected to one end of the pull rod 315 protruding from the sleeve 314, and the handle 317 abuts against the top surface of the sleeve 314. When the operator holds one end of the handle 317 and rotates the handle 317, the other end of the handle 317 moves along the top surface of the sleeve 314 and pulls the pull rod 315 to slide along the Z-axis direction. At this time, the pull rod 315 moves up and down with the connecting rod 312, that is, the pull rod 315 moves closer to or away from the first workpiece 200. For example, when the handle 317 is rotated clockwise, the pull rod 315 moves upward with the connecting rod 312, so that the pressing member 32 releases the first workpiece 200, and when the handle 317 is rotated counterclockwise, the pull rod 315 moves downward with the connecting rod 312, so that the pressing member 32 presses the first workpiece 200.

[0102] See also Figure 1 , Figure 2 , Figure 7 and Figure 8When the pressing member 32 releases the first workpiece 200, in order to facilitate the first workpiece 200 to be taken and placed on the carrier 11, the pull rod 315 can rotate relative to the sleeve 314, that is, the pull rod 315 is set as a columnar structure, and the pull rod 315 can slide along the Z axis direction or rotate around the Z axis direction. When the pull rod 315 rotates around the Z axis, the pull rod 315 brings the connecting rod 312 and the pressing member 32 away from the carrier 11 in a direction parallel to the XY plane.

[0103] The handle 317 is provided with a receiving groove 3171, and one end of the pull rod 315 protrudes into the receiving groove 3171 and is connected to the connecting rod 312. The sleeve 314 includes a main body 3141, a guide portion 3142 and two limit portions 3143. The main body 3141 is provided on the bearing platform 11 of the base 10, the pull rod 315 is slidably connected to the main body 3141, and the guide portion 3142 is protruding from the top surface of the main body 3141 and is located in the receiving groove 3171. For example, the guide portion 3142 is circular. The groove wall of the receiving groove 3171 abuts against the guide portion 3142. When the handle 317 and the pull rod 315 rotate together, the guide portion 3142 guides the handle 317.

[0104] The two limiting portions 3143 are connected to the opposite sides of the guide portion 3142 and are located in the accommodating groove 3171. When the handle 317 is rotated to a certain angle, it will abut against the limiting portions 3143. At this time, the handle 317 stops rotating under the limiting action of the limiting portions 3143. The two limiting portions 3143 are used to limit the rotation range of the handle 317.

[0105] See also Figure 1 , Figure 2 , Figure 3 and Fig. 9 In this embodiment, the detection mechanism 40 also includes a second detection component 42.

[0106] The second detection component 42 is disposed on a side of the base 10 away from the supporting platform 11 and connected to the first detection component 41 . The second detection component 42 is used to pass through the supporting platform 11 and be inserted into the nut 204 to detect the nut 204 .

[0107] The first detection assembly 41 includes a first insulating member 411 , a connecting member 412 , a detection member 413 and an elastic member 414 .

[0108] The first insulating member 411 is made of an insulating material, is connected to the top surface of the base 10 and is spaced apart from the support platform 11 . The connecting member 412 is disposed on the first insulating member 411 and is connected to the alarm mechanism 50 .

[0109] The detection member 413 is connected to the connection member 412 and is located at one side of the support platform 11 . The detection member 413 is used to be inserted into the hook 203 to detect the position of the hook 203 .

[0110] There are two detection members 413 and two elastic members 414. Both detection members 413 are slidably inserted into the connecting member 412 and are respectively located on two adjacent sides of the support platform 11. The two detection members 413 are used to be inserted and matched with the hook 203 from two directions perpendicular to each other. Both ends of the detection member 413 protrude from the connecting member 412, and one end of the detection member 413 is provided with a slot 415, which is used to be nested and matched with the hook 203.

[0111] The elastic member 414 may be a spring, which is sleeved on the corresponding detection member 413, one end of the elastic member 414 abuts against the connecting member 412, and the other end of the elastic member 414 abuts against one end of the detection member 413 away from the slot 415. The elastic member 414 is used to keep the detection member 413 away from the hook 203. When two detection members 413 are used to detect the position of the hook 203, for example, the first detection member 413 is pushed first to move the detection member 413 along the Y-axis direction. When the slot 415 and the hook 203 are nested, that is, the side of the hook 203 is received in the slot 415, and the hook 203 does not contact the slot wall of the slot 415, the alarm mechanism 50 does not alarm at this time, and the position of the hook 203 in the X-axis direction is qualified; when the hook 203 contacts the slot wall of the slot 415, the detection member 413, the hook 203, the connecting member 412, the alarm mechanism 50, the base 10 and the first workpiece 200 form a closed loop, and the alarm mechanism 50 sends an alarm signal, indicating that the welding position of the hook 203 in the X-axis direction is unqualified. Then push the second detection piece 413 to move the second detection piece 413 along the X-axis direction. When the hook 203 is nested with the second detection piece 413, that is, the bottom of the hook 203 is received in the slot 415 on the second detection piece 413, and the bottom of the hook 203 is not in contact with the second detection piece 413, at this time, the alarm mechanism 50 does not alarm, and the position of the hook 203 in the Y-axis and Z-axis directions is qualified. Otherwise, the alarm mechanism 50 alarms, indicating that the welding position of the hook 203 in the Y-axis and Z-axis directions is unqualified.

[0112] See also Figure 1 , Figure 2 , Figure 3 and Fig.10The second detection assembly 42 includes a second insulating member 421, a support member 422, a conductive member 423, a guide member 424, a measuring member 425 and a reset member 426. The second insulating member 421 is made of an insulating material, and the second insulating member 421 is connected to the side of the base 10 away from the carrier 11, and the support member 422 is connected to the second insulating member 421. The conductive member 423 can be a bolt, one end of the conductive member 423 is connected to the support member 422, and the other end of the conductive member 423 passes through the second insulating member 421 and the base 10 to be connected to the connecting member 412, and the conductive member 423 is spaced apart from the base 10, that is, the base 10 is provided with a hole structure for the conductive member 423 to pass through, and a gap is provided between the conductive member 423 and the inner wall of the hole.

[0113] The base 10 is provided with a through hole 14 penetrating the support platform 11, and the guide member 424 is connected to the support member 422 and penetrates the second insulating member 421. In this embodiment, the guide member 424 extends into the through hole 14, and the outer side surface of the guide member 424 is spaced from the hole wall of the through hole 14. The measuring member 425 is slidably arranged in the guide member 424, and one end of the measuring member 425 protrudes from the guide member 424 and the through hole 14 and is inserted into the nut 204 on the first workpiece 200.

[0114] The reset member 426 can be a spring, which is sleeved on the measuring member 425 , one end of the reset member 426 abuts against the support member 422 , and the other end of the reset member 426 abuts against the other end of the measuring member 425 . The reset member 426 is used to keep the measuring member 425 away from the nut 204 .

[0115] When measuring the position of the nut 204, the measuring piece 425 is pushed so that the measuring piece 425 protrudes out of the guide piece 424 and the through hole 14 and is inserted into the nut 204. When the measuring piece 425 contacts the nut 204, the measuring piece 425, the nut 204, the support piece 422, the conductive piece 423, the connecting piece 412, the alarm mechanism 50, the base 10 and the first workpiece 200 form a closed loop. At this time, the alarm mechanism 50 alarms, indicating that the welding position of the nut 204 is unqualified.

[0116] See also Figure 1 and Figure 4 In this embodiment, the alarm mechanism 50 includes an alarm component 51 and a power supply component 52. The power supply component 52 is connected to the base 10. The alarm component 51 can be an alarm light or a buzzer. The alarm component 51 is arranged on the first insulating member 411. The alarm component 51 has a first pin 511 and a second pin 512. The first pin 511 is connected to the positive electrode of the power supply component 52, and the second pin 512 is connected to the connecting member 412 of the detection mechanism 40. The negative electrode of the power supply component 52 is connected to the base 10.

[0117] The power supply assembly 52 includes a housing 521 , an elastic supporting member 522 and a power source 523 . The base 10 is provided with a receiving hole 15 , which is located below the alarm member 51 , and the first pin 511 passes through the first insulating member 411 and extends into the receiving hole 15 .

[0118] The housing 521 is connected to the side of the base 10 away from the support platform 11 and covers the receiving hole 15. The elastic abutment 522 and the power source 523 are arranged in the housing 521. One end of the elastic abutment 522 is connected to the first pin 511, and the other end of the elastic abutment 522 abuts against the positive electrode of the power source 523. The negative electrode of the power source 523 abuts against the housing 521. The power source 523 is a battery.

[0119] In order to prevent the power supply assembly 52 from short-circuiting, an insulating sleeve 524 is provided inside the shell 521 . The insulating sleeve 524 prevents the elastic supporting member 522 and the power supply 523 from contacting the inner wall of the shell 521 , thereby causing the power supply 523 to short-circuit.

[0120] For example, when detecting the hook 203, when the detection member 413 is nested and in contact with the hook 203, the detection member 413, the hook 203, the connecting member 412, the alarm member 51, the power supply assembly 52, the base 10 and the first workpiece 200 form a closed loop, and the alarm member 51 sends out an alarm signal.

[0121] For example, when detecting the nut 204, when the measuring piece 425 is nested and in contact with the nut 204, the measuring piece 425, the nut 204, the supporting piece 422, the conductive piece 423, the connecting piece 412, the alarm piece 51, the power supply assembly 52, the base 10 and the first workpiece 200 form a closed loop, and the alarm piece 51 sends out an alarm signal.

[0122] The working process of the position detection device 100 provided in the embodiment of the present application is roughly as follows:

[0123] The first workpiece 200 is placed on the carrier 11, and at this time, the main positioning member 21 and the auxiliary positioning member 22 are inserted into the corresponding circular holes 201. The handle 317 is rotated around the Z-axis direction so that the handle 317 drives the pull rod 315 and the connecting rod 312 to rotate, so as to align the pressing member 32 with the first workpiece 200, and then the handle 317 is rotated counterclockwise around the Y-axis so that the handle 317 drives the pull rod 315 and the connecting rod 312 to move toward the first workpiece 200, so that the pressing member 32 on the connecting rod 312 presses the first workpiece 200 to press the first workpiece 200 against the carrier 11, thereby completing the positioning of the first workpiece 200.

[0124] First, the first detection member 413 is pushed, so that the detection member 413 moves along the Y-axis direction and is inserted into the hook 203. At this time, the alarm member 51 does not send out an alarm signal, indicating that the position of the hook 203 in the X-axis direction is qualified. Then, the second detection member 413 is pushed, so that the second detection member 413 moves along the X-axis direction and is inserted into the hook 203. At this time, the bottom of the hook 203 is received in the slot 415 of the second detection member 413. When the alarm member 51 does not send out an alarm signal, it indicates that the position of the hook 203 in the Y-axis and Z-axis directions is qualified.

[0125] The measuring piece 425 is pushed so that it protrudes out of the guide piece 424 and the through hole 14 and is inserted into the nut 204. When the measuring piece 425 is not in contact with the nut 204, the alarm piece 51 does not send out an alarm signal, which indicates that the welding position of the nut 204 is qualified.

[0126] Since the operator can quickly determine whether the position installation of the hook 203 or the nut 204 is qualified only according to the prompt of the alarm member 51, the detection efficiency is improved. Since the detection member 413 and the measuring member 425 do not touch the hook 203 and the nut 204 when detecting qualified hooks 203 and nuts 204, the detection member 413 and the measuring member 425 will not cause the hook 203 and the nut 204 to deform.

[0127] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A position detection device for detecting whether a second workpiece carried by a first workpiece is at a preset position, characterized in that: include: A base, wherein the base is provided with a bearing platform for bearing the first workpiece; A positioning mechanism, slidably disposed on the bearing platform, the positioning mechanism being used to position the first workpiece; A detection mechanism is provided on the base and located on one side of the carrying platform, the detection mechanism includes a first detection component, the first detection component is provided on the base and adjacent to the carrying platform, and the first detection component is used to be nested with the second workpiece to detect the position of the second workpiece; An alarm mechanism, disposed on the base and connected to the first detection component; When the first detection component contacts the second workpiece so that the first detection component, the alarm mechanism, the base and the first workpiece form a closed loop, the alarm mechanism sends out an alarm signal to indicate that the second workpiece deviates from a preset position.

2. The position detection device according to claim 1, characterized in that: The second workpiece includes a hook and a nut, the first detection assembly is used to detect the hook, and the detection mechanism further includes: The second detection component is arranged on a side of the base away from the supporting platform and is connected to the first detection component. The second detection component is used to pass through the supporting platform and be inserted into the nut to detect the position of the nut.

3. The position detection device according to claim 2, characterized in that: The first detection component comprises: A first insulating member, connected to the base and disposed adjacent to the supporting platform; A connecting member, provided on the first insulating member and connected to the alarm mechanism; A detection member is slidably arranged on the connecting member, and both ends of the detection member protrude from the connecting member, and one end of the detection member is provided with a slot for nesting with the hook, and when the slot wall of the slot contacts the hook, the detection member, the hook, the connecting member, the alarm mechanism, the base and the first workpiece form a closed loop; An elastic member is sleeved on the detection member, one end of the elastic member abuts against the connecting member, and the other end of the elastic member abuts against the other end of the detection member, and the elastic member is used to keep the detection member away from the hook.

4. The position detection device according to claim 3, characterized in that: The base is provided with a through hole penetrating the bearing platform, and the second detection component includes: A second insulating member connected to a side of the base facing away from the supporting platform; A support member connected to the second insulating member; a conductive member, one end of which is connected to the supporting member, the other end of which passes through the second insulating member and the base to be connected to the connecting member, and the conductive member is spaced apart from the base; A guide member connected to the support member and passing through the second insulating member; A measuring piece is slidably arranged on the guide piece, one end of the measuring piece protrudes out of the guide piece and the through hole and is inserted into the nut; A reset member, sleeved on the measuring member, one end of the reset member abuts against the supporting member, and the other end of the reset member abuts against the other end of the measuring member, and the reset member is used to move the measuring member away from the nut; When the measuring piece contacts the nut, the measuring piece, the nut, the supporting piece, the conductive piece, the connecting piece, the alarm mechanism, the base and the first workpiece form a closed loop, and the alarm mechanism sounds an alarm to indicate that the nut deviates from a preset position.

5. The position detection device according to claim 1, characterized in that: The alarm mechanism comprises: A power supply component is provided on the base, and a negative pole of the power supply component is connected to the base; An alarm component comprises a first pin and a second pin, wherein the first pin is connected to the positive pole of the power supply component, and the second pin is connected to the first detection component, wherein when the first detection component contacts the second workpiece so that the first detection component, the second workpiece, the alarm component, the power supply component, the base and the first workpiece form a closed loop, the alarm component sends an alarm signal to indicate that the second workpiece deviates from a preset position.

6. The position detection device according to claim 1, characterized in that: The position detection device further includes a fixing mechanism, which is connected to the base and located on one side of the supporting platform, and is used to press the first workpiece against the supporting platform; wherein the fixing mechanism includes: A driving assembly, disposed on the base and located on one side of the supporting platform; The pressing member is connected to the driving assembly and is arranged opposite to the supporting platform. The pressing member is used to press the first workpiece on the supporting platform under the drive of the driving assembly.

7. The position detection device according to claim 6, characterized in that: The drive assembly comprises: A driving unit, arranged on the base; a connecting rod, one end of which is connected to the driving unit, and the other end of which is driven by the driving unit to move closer to or farther from the first workpiece; A movable block, one end of which is rotatably connected to the other end of the connecting rod, and the other end of the movable block is rotatably connected to the pressing member, a center line of rotation of the movable block around the connecting rod is perpendicular to a center line of rotation of the pressing member around the movable block, and the movable block is used to follow the movement of the connecting rod to drive the pressing member to press or release the first workpiece.

8. The position detection device according to claim 7, characterized in that: The driving unit comprises: A sleeve, disposed on the base; A pull rod, slidably connected in the sleeve, one end of the pull rod being connected to the connecting rod; An elastic pulling member, sleeved on the pull rod, one end of the elastic pulling member abuts against an end of the sleeve away from the connecting rod, and the other end of the elastic pulling member abuts against the other end of the pull rod; A handle is rotatably connected to one end of the pull rod protruding from the sleeve, and the handle abuts against the top surface of the sleeve. The handle is used to rotate along the top surface of the sleeve to drive the pull rod to slide, and the pull rod brings the pressure piece closer to or away from the first workpiece through the connecting rod.

9. The position detection device according to claim 8, characterized in that: The pull rod can rotate relative to the sleeve to drive the pressing member connected to the connecting rod to move away from the first workpiece; a receiving groove is provided on the handle, and one end of the pull rod protruding from the sleeve extends into the receiving groove and is connected to the connecting rod; The sleeve comprises: A main body, arranged on the base, and the pull rod is slidably connected to the main body; A guide portion, convexly disposed on the top surface of the main body and located in the receiving groove, the guide portion abutting against a groove wall of the receiving groove, and the guide portion being used to guide the handle when the handle rotates following the pull rod; Two limiting parts are connected to the opposite sides of the guide part. The two limiting parts are located in the receiving groove and are used to limit the rotation range of the handle.

10. The position detection device according to claim 1, characterized in that: The positioning mechanism comprises: A main positioning member is slidably disposed on the bearing platform, and one end of the main positioning member is used to position the first workpiece; An auxiliary positioning member is slidably disposed on the bearing platform and is spaced apart from the main positioning member, and one end of the auxiliary positioning member is used to position the first workpiece; Two elastic push-up members are respectively sleeved on the main positioning member and the auxiliary positioning member, wherein two ends of one of the elastic push-up members are respectively abutted against the main positioning member and the base, and two ends of the other elastic push-up member are respectively abutted against the auxiliary positioning member and the base, and the two elastic push-up members are used to make the main positioning member and the auxiliary positioning member elastically contact with the first workpiece.

Images