Copper nut hot melt detection device and method

Abstract

The present invention provides a copper nut hot melt detection device and method, belonging to the field of hot melt devices, including a hot melt detection mechanism and a transport mechanism; the transport mechanism is used to transport products to the hot melt station; the hot melt detection mechanism includes a drive module and a rotation module connected by a rotating shaft, the rotation module includes a rotating plate, and the rotating plate rotates around the axis of the rotating shaft under the drive of the drive module. The rotating plate includes a first surface and a second surface arranged opposite each other, and the first surface and the second surface are respectively provided with a plurality of hot melt modules and detection modules of the same number. The present invention synchronizes the copper nut splicing and hot melt quality inspection, saving process time and improving processing efficiency. While ensuring product quality, it can further shorten the time of the hot melt process and the inspection process.

Description

Technical Field

[0001] The invention belongs to the technical field of hot-melt devices, and in particular relates to a copper nut hot-melt detection device and method. Background Art

[0002] A hot-melt nut forming machine is an auxiliary device used to insert nuts into plastic parts. Typically, the nut is pressed or pressed into the mounting hole and heated to achieve an interference fit. Currently, it is widely used in mechanical assembly. After the hot-melt process, the inserts require quality inspection, including the number, position, and accuracy of the nuts.

[0003] The Chinese patent application number CN202011246728.4 provides a hot melt detection station for nut inserts and a detection method thereof. A positioning fixture assembly is provided on the workbench, and several brackets are provided around the workbench. A three-way motion assembly is provided on the bracket, and a vertical connecting plate is provided on the three-way motion assembly. A visual detection assembly and a detection mark assembly are provided side by side on the vertical connecting plate; a vertical visual sensor is provided on the visual detection assembly, and the visual sensor collects and transmits the image of the insert that has been hot-melted to a computer; the detection mark assembly includes a vertical motion assembly and a retractable marking head installed on the vertical motion assembly, and the marking head is used to mark defective inserts detected by the visual sensor; the hot melt detection station for nut inserts has a simple structure and good flexibility, can reduce the labor intensity of manual inspection, and improve inspection efficiency.

[0004] Chinese patent application number CN202220090894.8 discloses a three-dimensional scanning and detection device for hot-melt nuts on the back cover of a tablet computer, including a frame, a connecting platform and an electric cylinder assembly. A gantry is provided on the connecting platform, and the electric cylinder assembly is connected to the frame through the connecting platform. The electric cylinder assembly includes an X-axis servo cylinder, a connected Y-axis servo cylinder and a Z-axis servo cylinder. The X-axis servo cylinder is connected to the connecting platform, and the Y-axis servo cylinder is connected to the gantry. A product fixing component is installed on the X-axis servo cylinder, and a three-dimensional scanning assembly is installed on the Z-axis servo cylinder. The three-dimensional scanning and detection equipment can implant nuts of multiple specifications in the entire product into height positions at one time, and can perform a full scan and detection of the product at one time.

[0005] However, the hot melt device and the scanning device of the above-mentioned device are separately arranged, occupying a large area, and the hot melt detection time period is long, which affects the processing efficiency. Therefore, it is necessary to provide a processing device that can perform hot melt and in-place detection simultaneously, which can further shorten the time of the hot melt process and the detection process while ensuring product quality. Summary of the Invention

[0006] Based on the above problems, the purpose of the present invention is to provide a copper nut hot melt detection device and method to address the above problems.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A copper nut hot melt detection device, comprising a hot melt detection mechanism and a transport mechanism;

[0009] The transport is used to transport the product to the hot melt station;

[0010] The hot melt detection mechanism includes a driving module and a rotating module connected by a rotating shaft. The rotating module includes a rotating plate. The rotating plate rotates around the axis of the rotating shaft under the drive of the driving module. The rotating plate includes a first surface and a second surface arranged opposite to each other. The first surface and the second surface are respectively provided with a plurality of hot melt modules and detection modules of the same number.

[0011] Preferably, the driving module includes a driving motor, the driving motor is sequentially connected to a transmission and a connecting flange, the connecting flange is fixedly connected to one end of the rotating shaft; the second surface of the rotating plate is embedded in the rotating shaft;

[0012] The hot melt module includes a hot melt head, and the end of the hot melt head is used to receive the copper nut;

[0013] The detection module includes a displacement sensor, and the position of the displacement sensor corresponds to the position of the hot melt head.

[0014] Preferably, it also includes a loading mechanism, a cutting mechanism and a feeding mechanism;

[0015] The loading mechanism is used to convey the copper nuts to the cutting mechanism, the cutting mechanism is used to separate the copper nuts and convey them to the feeding mechanism, and the feeding mechanism is used to transport the copper nuts to the hot melt die set.

[0016] Preferably, the feeding mechanism includes a feeding cylinder and a slide rail, a lifting cylinder is fixed on the slide rail, the lifting cylinder is connected to a plurality of clamps, the number of the clamps is the same as the number of the hot melt mold group, and the clamps are located directly above the hot melt mold group.

[0017] Preferably, the cutting mechanism comprises a cutting cylinder, a partition block is fixed to the end of the driving shaft of the cutting cylinder, and a plurality of partition grooves for accommodating single copper nuts are formed on the upper surface of the partition block.

[0018] Preferably, the cutting mechanism is further provided with a hollow collimating channel, and the dividing block is located inside the collimating channel and is displaced along the collimating channel.

[0019] Preferably, the cutting mechanism is provided with an in-place detection sensor, and the in-place detection sensor is used to detect whether there is a copper nut in the separation groove; the number of the in-place detection sensors is the same as the number of the separation grooves.

[0020] Preferably, the feeding mechanism is a vibrating plate.

[0021] The present invention also provides a copper nut hot melt detection method, which uses the copper nut hot melt detection device as described in any one of the above to perform copper nut hot melt and detection on the product. The specific operation method is as follows:

[0022] Step 1: The transport mechanism transports the product to the hot melt station;

[0023] Step 2: The rotating module of the hot melt detection mechanism rotates to the material connection position, the copper nut is loaded, and the hot melt module is connected to the copper nut;

[0024] Step 3: The rotating module rotates to the hot melt position, and the hot melt module hot melts the copper nut on the product;

[0025] Step 4: After the hot melt is completed, the rotating module rotates to the material receiving position again. While the hot melt module receives the copper nut, the detection module detects whether the position of the finished hot melt copper nut on the product is in place; if the detection is qualified, the system marks it as a qualified product, otherwise it is marked as an unqualified product;

[0026] Step 5: After the inspection and marking are completed, the transport mechanism transports the product to the unloading station;

[0027] Step 6: Take out and replace the next product, and repeat steps 1 to 5 above.

[0028] Preferably, in step four, the method for the detection module to detect whether the position of the finished hot-melt copper nut on the product is in place is: the detection module measures the distance from the signal transmitter of the detection module to the finished hot-melt copper nut on the product, and compares it with the set distance threshold. If the comparison result is within the error value range, it is marked as a qualified product.

[0029] Preferably, the error value range is [-0.2mm, 0].

[0030] Preferably, the copper nut is loaded in the following manner:

[0031] The feeding mechanism transports the copper nuts to the cutting mechanism, and a single copper nut falls into and is clamped in the separation groove of the cutting mechanism;

[0032] When the i-th in-place detection sensor of the cutting mechanism detects the presence of a copper nut in the i-th separation slot, the separation block moves, and the copper nut transferred by the feeding mechanism falls into the i+1-th separation slot. The above operation is repeated until copper nuts are detected in all separation slots.

[0033] The feeding mechanism moves to the upper part of the separation groove, takes out the copper nut in the separation groove, and moves to the upper part of the hot melt detection mechanism, carries the copper nut and clamps it on the hot melt module.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] The present invention provides a copper nut hot-melt detection device and method. The hot-melt detection mechanism includes a drive module and a rotary module connected by a rotating shaft. The rotary module includes a rotating plate. The rotating plate includes a first surface and a second surface arranged opposite to each other. The first surface and the second surface are respectively provided with a plurality of hot-melt modules and detection modules of the same number. After the hot-melt is completed, the rotary module rotates again to the material connection position. While the hot-melt module receives the copper nut, the detection module detects whether the position of the finished hot-melt copper nut on the product is in place. If the detection is qualified, the system marks it as a qualified product, otherwise it is marked as an unqualified product. The copper nut connection and hot-melt quality detection are carried out simultaneously, which saves process time and improves processing efficiency. While ensuring product quality, the time of the hot-melt process and the detection process can be further compressed. The structure is compact, the floor space is small, and the device space is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a copper nut hot melt detection device in the present invention;

[0037] Figure 2 This is a first structural schematic diagram of a hot melt detection mechanism in a copper nut hot melt detection device of the present invention;

[0038] Figure 3 This is a second structural schematic diagram of a hot melt detection mechanism in a copper nut hot melt detection device according to the present invention;

[0039] Figure 4 This is a first structural schematic diagram of a hot melt detection mechanism and a transport mechanism in a copper nut hot melt detection device of the present invention;

[0040] Figure 5 This is a second structural schematic diagram of a hot melt detection mechanism and a transport mechanism in a copper nut hot melt detection device of the present invention;

[0041] Figure 6 This is a second structural schematic diagram of a copper nut hot melt detection device in the present invention;

[0042] Figure 7It is a structural schematic diagram of a cutting mechanism and a feeding mechanism in a copper nut hot melt detection device of the present invention;

[0043] Figure 8 It is a structural schematic diagram of a feeding mechanism in a copper nut hot melt detection device of the present invention;

[0044] Figure 9 It is a structural schematic diagram of a cutting mechanism in a copper nut hot melt detection device in the present invention;

[0045] Figure 10 The present invention is a schematic flow chart of a copper nut hot melt detection method.

[0046] Reference numerals:

[0047] 1-hot melt detection mechanism; 101-drive motor; 102-transmission; 103-connecting flange; 104-rotating shaft;

[0048] 105-rotating plate; 106-thermal melting head; 107-displacement sensor;

[0049] 2-feeding mechanism; 201-first base side panel; 202-second base side panel; 203-base top panel; 204-guide rail;

[0050] 205-feeding cylinder; 206-fixed plate; 207-lifting cylinder; 208-first clamping jaw; 209-second clamping jaw;

[0051] 3-cutting mechanism; 301-cutting cylinder; 302-separator; 303-alignment channel; 304-first position sensor;

[0052] 305-second in-position sensor; 306-first limit sheet metal; 307-second limit sheet metal;

[0053] 4-feeding mechanism; 5-handling mechanism; 6-product; 7-copper nut; DETAILED DESCRIPTION

[0054] To make the purpose and technical solutions of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0055] In the description of this application, it should be understood that the terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on this application.

[0056] A copper nut hot melt detection device comprises a loading mechanism 4, a cutting mechanism 3, a feeding mechanism 2, a hot melt detection mechanism 1 and a conveying mechanism 5.

[0057] The conveying mechanism 5 is used to convey the product 6 to the hot melt station; a linear motor is usually used for conveying, and the product 6 is fixed on the linear motor, and the side where the copper nut 7 needs to be installed faces the hot melt detection mechanism 1. In the working state, the jig on the conveying mechanism 5 is initially located at the loading station. After the product 6 is placed on the jig manually or mechanically, the conveying mechanism 5 will drive the product 6 to the hot melt station.

[0058] The hot melt detection mechanism 1 includes a drive module and a rotation module connected by a rotating shaft 104. The drive module includes a drive motor 101, which is in turn connected to a transmission 102 and a connecting flange 103. The connecting flange 103 is fixedly connected to one end of the rotating shaft 104. When the drive motor 101 is running, the output shaft of the drive motor 101 rotates, driving the rotating shaft 104 to rotate synchronously. The rotation module also includes a rotating plate 105, which is embedded in the rotating shaft 104. Therefore, when the rotating shaft 104 rotates, it can drive the rotating plate 105. The rotating plate 105 is driven by the drive module to rotate around the axis of the rotating shaft 104.

[0059] The rotating plate 105 includes a first surface and a second surface arranged opposite to each other, and the first surface and the second surface are respectively provided with a plurality of hot melt modules and detection modules of the same number. The number of hot melt modules and detection modules is usually determined according to the number of copper nuts 7 that need to be hot-melted on the product 6. In this embodiment, the hot melt module includes two hot melt heads 106, the ends of the hot melt heads 106 are used to receive the copper nuts 7, and the detection module includes two displacement sensors 107, wherein the positions of the displacement sensors 107 and the hot melt heads 106 correspond one to one. The rotating module mainly has two positions: the hot melt position and the material connection position. The rotation angle of the rotating shaft 104 between the hot melt position and the material connection position is 90°. When the rotating module rotates to the material joining position, the hot melt head 106 is vertically upward, opposite to the feeding mechanism 2, and the signal transmitter of the displacement sensor 107 located on the second surface is just facing the position of the hot-melt copper nut 7 on the product 6, so detection can be performed while joining the materials; after the hot melt head 106 completes the material joining, the rotating module rotates 90° and is located at the hot melting position. At this time, the end of the hot melt head 106 is just facing the position of the hot-melt nut on the product 6, so hot melting can be performed normally; after the hot melting of the product 6 is completed, the rotating module rotates 90° in the opposite direction and returns to the material joining position. At this time, the displacement sensor 107 can perform quality detection of the copper nut 7 while joining the materials.

[0060] The feeding mechanism 4 is used to transfer the copper nuts 7 to the cutting mechanism 3. The feeding mechanism 4 is a vibration plate, which can automatically arrange the copper nuts 7 to form a feeding sequence of the copper nuts 7 and transfer the copper nuts 7 to the cutting mechanism 3 in sequence.

[0061] The cutting mechanism 3 is used to separate the copper nuts 7 and feed them to the feeding mechanism 2. The cutting mechanism 3 includes a cutting cylinder 301. A separator block 302 is fixed to the end of the driving shaft of the cutting cylinder 301. The upper surface of the separator block 302 is provided with several separator slots for accommodating individual copper nuts 7. Each separator slot can only accommodate one copper nut 7. In this embodiment, since two copper nuts 7 are heat-soldered at a time, there are two separator slots: a first separator slot and a second separator slot. In its initial position, the first separator slot is aligned with the copper nut 7 feeding sequence. The cutting mechanism 3 is equipped with position detection sensors for detecting whether a copper nut 7 is present in the separator slot. The number of these sensors is the same as the number of separator slots, including a first position detection sensor 304 and a second position detection sensor 305. When a copper nut 7 is captured by the first separator slot, the first position detection sensor 304 detects the presence of a copper nut 7 in the first separator slot, at which point the cutting cylinder 301 pushes the separator block 302 into motion. The cutting mechanism 3 is also provided with a hollow collimating channel 303, the dividing block 302 is located inside the collimating channel 303 and displaced along the collimating channel 303, and a first limiting sheet metal 306 and a second limiting sheet metal 307 are also provided above the collimating channel 303, which can ensure that the movement direction of the dividing block 302 is the same as that of the collimating channel 303, preventing the dividing block 302 from vibrating up and down in the collimating channel 303. The cutting cylinder 301 pushes the dividing block 302 to move, pushing the second dividing groove to the same line as the copper nut 7 loading sequence. At this time, a second in-place detection sensor 305 is provided at the position of the first dividing groove, which can monitor the presence of copper nuts 7 in the first dividing groove. After the copper nuts 7 are also present in the second dividing groove, the first in-place detection sensor 304 and the second in-place detection sensor 305 both detect the presence of copper nuts 7, that is, copper nuts 7 are present in all the dividing grooves. At this time, the vibration plate pauses, and the feeding mechanism 2 comes to the top of the cutting mechanism 3 to transport the copper nuts 7 in the two dividing grooves to the hot melt module.

[0062] The feeding mechanism 2 is mounted on a base top plate 203 above the first base side plate 201 and the second base side plate 202. The first base side plate 201, the second base side plate 202, and the base top plate 203 form a frame-like structure, allowing the rotating module in the hot melt detection mechanism 1 to be accommodated in the center of the frame, saving space while protecting the rotating module. The feeding mechanism 2 is located above the rotating module, allowing for rapid delivery of materials to the hot melt module, improving work efficiency. It includes a feeding cylinder 205 and a slide rail, to which a lifting cylinder 207 is fixed. The lifting cylinder 207 is connected to a plurality of clamps, the number of which is the same as the number of hot melt modules, and the clamps are located directly above the hot melt modules. In this embodiment, since two copper nuts 7 are hot-melted at a time, there are two clamps, namely a first clamp 208 and a second clamp 209. When the feeding cylinder 205 is extended, the lifting cylinder 207 and the clamps are located directly above the hot melt module. When the feeding cylinder 205 retracts, the lifting cylinder 207 and the clamping jaws return to the top of the cutting mechanism 3. Therefore, after the first in-position detection sensor 304 and the second in-position detection sensor 305 both detect the presence of the copper nut 7, that is, after the copper nut 7 is present in all the partitioning grooves, the feeding cylinder 205 retracts, and the lifting cylinder 207 and the clamping jaws return to the top of the cutting mechanism 3. The lifting cylinder 207 descends, and the distance between the two clamping jaws is equal to the distance between the two partitioning grooves, which is also equal to the distance between the two hot melt heads 106 in the hot melt mold. The two clamping jaws remove the copper nuts 7 from the two partitioning grooves, the lifting cylinder 207 rises, and the feeding cylinder 205 extends. The lifting cylinder 207 and the clamping jaws are located directly above the hot melt mold. At this time, when the rotating module rotates to the material receiving position, the hot melt head 106 is vertically upward, opposite to the first clamp 208 and the second clamp 209 of the feeding mechanism 2, the lifting cylinder 207 descends, and the clamp places the copper nut 7 on the hot melt head 106, and the lifting cylinder 207 rises and returns to the initial position.

[0063] The present invention also provides a copper nut hot melt detection method, which uses the copper nut hot melt detection device to perform copper nut hot melt and detection on product 6. The specific operation method is as follows:

[0064] Step 1: The transport mechanism 5 transports the product 6 to the hot melt station;

[0065] Step 2: The rotating module of the hot melt detection mechanism 1 rotates to the material receiving position, the copper nut 7 is loaded, and the loading mechanism 4 transports the copper nut 7 to the cutting mechanism 3, and a single copper nut 7 falls into and is clamped in the separation groove of the cutting mechanism 3;

[0066] When the i-th in-position detection sensor of the cutting mechanism 3 detects the presence of a copper nut 7 in the i-th separation groove, the separation block 302 moves, and another copper nut 7 transferred by the feeding mechanism 4 falls into the i+1-th separation groove. The above operation is repeated until the presence of copper nuts 7 in all separation grooves is detected;

[0067] The feeding mechanism 2 moves to the top of the separation groove, takes out the copper nut 7 in the separation groove, and moves to the top of the hot melt detection mechanism 1, carries the copper nut 7 and clamps it on the hot melt module; the hot melt module is connected to the copper nut 7;

[0068] Step 3: The rotating module rotates to the hot-melt position, and the hot-melt module hot-melts the copper nut 7 onto the product 6;

[0069] Step 4: After the hot melt is completed, the rotating module rotates again to the material receiving position. While the hot melt module receives the copper nut 7, the detection module detects whether the position of the finished hot melt copper nut 7 on the product 6 is in place; if the detection is qualified, the system marks it as a qualified product 6, otherwise it is marked as an unqualified product 6;

[0070] The method for the detection module to detect whether the finished hot-melt copper nut 7 on the product 6 is in place is as follows: the detection module measures the distance from the signal transmitter of the detection module to the finished hot-melt copper nut 7 on the product 6, and compares it with the set distance threshold. If the comparison result is within the error value range, it is marked as a qualified product 6; the error value range is [-0.2mm,0].

[0071] Step 5: After the inspection and marking are completed, the transport mechanism 5 transports the product 6 to the unloading station;

[0072] Step 6: Take out and replace the next product 6, and repeat steps 1 to 5 above.

[0073] The above is only a partial description of the embodiments of the present invention, and its description is relatively specific and detailed, but it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the scope of the present invention, and these obvious alternative forms are all within the scope of protection of the present invention.

Claims

1. A copper nut hot melt detection device, characterized by: Including hot melt detection mechanism and handling mechanism; The transport mechanism is used to transport the product to the hot melt station; The hot melt detection mechanism includes a driving module and a rotating module connected by a rotating shaft. The rotating module includes a rotating plate. The rotating plate rotates around the axis of the rotating shaft under the drive of the driving module. The rotating plate includes a first surface and a second surface arranged opposite to each other. The first surface and the second surface are respectively provided with a plurality of hot melt modules and detection modules of the same number. The driving module includes a driving motor, which is sequentially connected to a transmission and a connecting flange, and the connecting flange is fixedly connected to one end of the rotating shaft; the second surface of the rotating plate is embedded in the rotating shaft; the hot melt module includes a hot melt head, and the end of the hot melt head is used to receive a copper nut; The detection module includes a displacement sensor, and the displacement sensor corresponds to the position of the hot melt head; it also includes a loading mechanism, a cutting mechanism and a feeding mechanism; the loading mechanism is used to transfer the copper nuts to the cutting mechanism, the cutting mechanism is used to separate the copper nuts and send them to the feeding mechanism, and the feeding mechanism is used to transport the copper nuts to the hot melt module; The feeding mechanism includes a feeding cylinder and a slide rail, a lifting cylinder is fixed on the slide rail, and the lifting cylinder is connected to a plurality of clamps, the number of the clamps is the same as the number of the hot melt mold group, and the clamps are located directly above the hot melt mold group; The cutting mechanism includes a cutting cylinder, a partition block is fixed to the end of the driving shaft of the cutting cylinder, and a plurality of partition grooves for accommodating a single copper nut are opened on the upper surface of the partition block; The cutting mechanism is further provided with a hollow collimating channel, and the dividing block is located inside the collimating channel and moves along the collimating channel; The cutting mechanism is provided with an in-place detection sensor, which is used to detect whether there is a copper nut in the separation groove; the number of the in-place detection sensors is the same as the number of the separation grooves.

2. A copper nut hot melt detection device according to claim 1, characterized in that: The feeding mechanism is a vibrating plate.

3. A method for detecting hot melt of copper nuts, characterized by: The copper nut hot-melt detection device according to any one of claims 1 to 2 is used to perform hot-melt and detection of copper nuts on products. The specific operation method is as follows: Step 1: The transport mechanism transports the product to the hot melt station; Step 2: The rotating module of the hot melt detection mechanism is located at the material receiving position, the copper nut is loaded, and the hot melt module is connected to the copper nut; Step 3: The rotating module rotates to the hot melt position, and the hot melt module hot melts the copper nut on the product; Step 4: After the hot melt is completed, the rotating module rotates to the material receiving position again. While the hot melt module receives the copper nut, the detection module detects whether the position of the finished hot melt copper nut on the product is in place; if the detection is qualified, the system marks it as a qualified product, otherwise it is marked as an unqualified product; Step 5: After the inspection and marking are completed, the transport mechanism transports the product to the unloading station; Step 6: Take out and replace the next product, and repeat steps 1 to 5 above.

4. A copper nut hot melt detection method according to claim 3, characterized in that: In step four, the method by which the detection module detects whether the position of the finished hot-melt copper nut on the product is in place is as follows: the detection module measures the distance from the signal transmitter of the detection module to the finished hot-melt copper nut on the product, and compares it with the set distance threshold. If the comparison result is within the error value range, it is marked as a qualified product.

5. A copper nut hot melt detection method according to claim 4, characterized in that: The error value range is [-0.2mm, 0].

6. A copper nut hot melt detection method according to claim 3, characterized in that: In step 2, the copper nut is loaded as follows: The feeding mechanism transports the copper nuts to the cutting mechanism, and the single copper nut falls into and is clamped in the separation groove of the cutting mechanism; When the i-th in-place detection sensor of the cutting mechanism detects the presence of a copper nut in the i-th separation slot, the separation block moves, and the copper nut transferred by the feeding mechanism falls into the i+1-th separation slot. The above operation is repeated until copper nuts are detected in all separation slots. The feeding mechanism moves to the upper part of the separation groove, takes out the copper nut in the separation groove, and moves to the upper part of the hot melt detection mechanism, carries the copper nut and clamps it on the hot melt module.

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