Laser marking equipment for throttle valve and use method of laser marking equipment

Abstract

The invention provides laser marking equipment for a throttle valve and a use method of the laser marking equipment, and the laser marking equipment comprises a laser marking machine used for marking the throttle valve, a positioning tool used for fixing the throttle valve, scanning equipment used for scanning a mark code on the throttle valve, and a verification unit used for checking the mark code. The scanning device feeds back information obtained through scanning to the verification unit, and the verification unit judges whether the mark code of the throttle valve is qualified or not. According to the invention, the problem of how to automatically check the code in the code printing link in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of throttle product marking, and in particular to a laser marking device for a throttle and a use method thereof. Background Art

[0002] Existing throttle products are coded before leaving the factory to facilitate subsequent product tracking. However, due to various reasons (such as machine restart, worker operation errors, or system setting problems, etc.), the coding process may cause duplicate codes, wrong codes, or incomplete codes. Once these problems occur, product traceability will inevitably be difficult. Manual code checking is labor-intensive and easy to miss.

[0003] Therefore, how to automatically check the code during the coding process has become a technical problem that needs to be solved.

[0004] In addition, the throttle product needs to be positioned at a designated location during coding, so that the marking machine can mark the code. However, due to the different models or specifications of throttle products, each specification of throttle product requires a set of coding positioning devices, and a set of coding positioning devices cannot be applied to a variety of throttle products of different specifications.

[0005] Therefore, how to make a set of coding and positioning devices applicable to throttle products of various specifications has also become a technical problem that needs to be solved. Summary of the invention

[0006] The purpose of the present invention is to provide a positioning tool for throttle laser marking, which mainly solves the problem of the above-mentioned prior art: how to automatically check the code during the coding process; and the problem of how to make a set of marking positioning devices applicable to throttle products of various specifications.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a laser marking device for a throttle valve, characterized in that: the laser marking device includes a laser marking machine for marking the throttle valve, a positioning tool for fixing the throttle valve, a scanning device for scanning the code on the throttle valve and a verification unit for verifying the code, the scanning device feeds back the scanned information to the verification unit, and the verification unit determines whether the code of the throttle valve is qualified.

[0008] Furthermore, the positioning tooling includes a transverse fixing plate and a longitudinal fixing plate that are connected to each other. The longitudinal fixing plate is provided with a first moving mechanism for moving the throttle up and down. The first moving mechanism includes two positioning pins for fixing the throttle and a distance adjustment mechanism for adjusting the distance between the two positioning pins.

[0009] Further, the first moving mechanism includes a first slide rail and a second slide rail longitudinally arranged on the longitudinal fixing plate, the first slide rail and the second slide rail are parallel, the positioning pin includes a first positioning pin and a second positioning pin, and the distance adjustment mechanism includes a first slide slot and a second slide slot;

[0010] The first slide rail is connected to the first connecting block through the first slider, a side of the first connecting block facing away from the first slide rail is provided with a first transverse sliding groove, the first sliding groove is connected to the third connecting block, and a side of the third connecting block facing away from the first sliding groove is provided with a first positioning pin;

[0011] The second slide rail is connected to the second connecting block through the second slider, a second transverse sliding groove is provided on the side of the second connecting block facing away from the second slide rail, the second sliding groove is connected to the fourth connecting block, and a second positioning pin is provided on the side of the fourth connecting block facing away from the second sliding groove;

[0012] The third connecting block carries the first positioning pin to move horizontally in the first slide groove, the fourth connecting block carries the second positioning pin to move horizontally in the second slide groove, the distance between the first positioning pin and the second positioning pin is adjusted, the first connecting block carries the first positioning pin to move up and down along the first slide rail, the second connecting block carries the second positioning pin to move up and down along the second slide rail, so as to realize the up and down movement of the throttle valve.

[0013] Further, a third longitudinal slot and a fourth longitudinal slot are respectively provided at both ends of the longitudinal fixing plate, the first positioning block is fixed in the third slot on one side of the longitudinal fixing plate by a first screw, and the first positioning block is butted against the first connecting block, the second positioning block is fixed in the fourth slot on the other side of the longitudinal fixing plate by a second screw, and the second positioning block is butted against the second connecting block;

[0014] The first connection block is provided with a first positioning hole, the third screw is threadedly connected with the first positioning hole and then abuts against the third connection block, the second connection block is provided with a second positioning hole, and the fourth screw is threadedly connected with the second positioning hole and then abuts against the fourth connection block.

[0015] Furthermore, a bottom plate is provided below the transverse fixing plate, a third slide rail is provided on the top of the bottom plate, the transverse fixing plate is connected to the third slide rail via a third slider, and the third slide rail is parallel to the first positioning pin and the second positioning pin;

[0016] A third positioning block is arranged at one end or both ends of the transverse fixing plate, the third positioning block is provided with a third positioning hole, and the fifth screw rod is threadedly connected with the third positioning hole and abuts against the bottom plate.

[0017] Further, there are three first positioning holes, which are evenly distributed on the top of the first connecting block, and there are three second positioning holes, which are evenly distributed on the top of the second connecting block;

[0018] The bottom of the longitudinal fixing plate is connected to the upper surface of the transverse fixing plate;

[0019] A reinforcing plate is provided between the longitudinal fixing plate and the transverse fixing plate;

[0020] A first limit block is provided on the top of the first slide rail, and a second limit block is provided on the top of the second slide rail;

[0021] There are two third positioning blocks, which are located on both sides of the transverse fixing plate;

[0022] There are two third slide rails which are arranged in parallel on the bottom plate.

[0023] Furthermore, the laser marking device includes a workbench and a fourth positioning block, the laser marking machine is fixed on the workbench through a lifting mechanism, the scanning device is fixed on the workbench, the bottom plate of the positioning tool is placed on the workbench, the positioning tool corresponds to the bottom of the laser marking machine, and the scanning device corresponds to the code of the throttle on the positioning tool;

[0024] The workbench is provided with a plurality of third positioning holes, the fourth positioning block is provided with a waist-shaped hole, the fourth positioning block is pressed on the bottom plate of the positioning tooling, and the waist-shaped hole of the fourth positioning block and the third positioning hole are connected by bolts.

[0025] A method for using a laser marking device for a throttle valve, which relates to the above-mentioned laser marking device for a throttle valve, is characterized in that it includes the following steps:

[0026] S1. Slide the first connecting block up and down along the first slide rail to a specified height, slide the first positioning block up and down along the third slide groove to a specified height, tighten the first screw rod so that the first positioning block abuts against the first connecting block, and the position of the first connecting block on the first slide rail is fixed, then slide the third connecting block left and right along the first slide groove to a specified position with the first positioning pin, tighten the third screw rod so that the position of the third connecting block in the first slide groove is fixed, and then embed the first positioning pin into a mounting hole of the throttle valve;

[0027] S2, slide the second connecting block up and down along the second slide rail to a specified height, slide the second positioning block up and down along the fourth slide slot to a specified height, tighten the second screw so that the second positioning block is against the second connecting block, the second connecting block is fixed on the second slide rail, and then slide the fourth connecting block with the second positioning pin left and right along the second slide slot to a specified position, tighten the fourth screw so that the position of the fourth connecting block in the second slide slot is fixed, and then embed the second positioning pin into another mounting hole on the diagonal of the throttle. At this point, the throttle is installed on the positioning fixture. If the throttle of the same specification is laser marked later, the throttle can be replaced. If the throttle of other specifications is laser marked later, refer to the above method to adjust the position of the first positioning pin and / or the second positioning pin to fix the throttles of different specifications;

[0028] S3. Place the bottom plate of the positioning fixture directly under the laser marking machine, press the two fourth positioning blocks on both sides of the bottom plate, and then connect the waist-shaped hole of the fourth positioning block and the third positioning hole of the workbench through bolts to fix the position between the bottom plate and the workbench, and then slide the transverse fixing plate back and forth along the third slide rail to ensure that the throttle is directly under the laser marking machine, and then tighten the fifth screw so that the fifth screw presses against the bottom plate to fix the position of the transverse fixing plate on the bottom plate;

[0029] S4. Adjust the height of the laser marking machine through the lifting mechanism to ensure that the marking position of the laser marking machine accurately falls on the marking area on the throttle dust cover;

[0030] S5. The laser marking machine marks the marking area on the dust cover. After the marking is completed, a code is formed. The scanning device scans the code and feeds back the scanned information to the verification unit.

[0031] S6. The verification unit first makes the first judgment, that is, whether the code information fed back by the scanning device is complete. If the code information is incomplete, it is judged as an unqualified product. If the code information is complete, the second judgment is made, that is, whether the code information fed back by the scanning device is valid. If the code information does not meet the validity requirements, it is judged as an unqualified product. If the code meets the validity requirements, the third judgment is made, that is, whether the code information fed back by the scanning device is repeated. If the code information is repeated, it is judged as an unqualified product. If the code information is not repeated, it is judged as a qualified product.

[0032] Further, in step S4, the lifting mechanism is a vertical screw-nut mechanism, the nut of the screw-nut mechanism is connected to the support plate, and the laser marking machine is fixed on the support plate;

[0033] In step S5, two scanning devices are provided, namely a first scanning device and a second scanning device. The first scanning device is used to scan the code printed on the throttle by the laser marking machine, and the verification unit will subsequently verify whether the code is qualified. The second scanning device scans the code carried by the throttle during the previous processing, and the verification unit will subsequently verify whether the code is qualified.

[0034] In step S6, the judgment of whether the code information is complete refers to whether the two-dimensional code, barcode or digital code is complete, the judgment of whether the code information is valid refers to whether the two-dimensional code, barcode or digital code meets the preset format requirements, and the judgment of whether the code information is repeated refers to checking the two-dimensional code, barcode or digital code with the code information that has been used in the database to determine whether it is repeated; if the verification unit determines that it is an unqualified product, the verification information will be fed back to the control unit, and the control unit will control the alarm to sound an alarm.

[0035] A method for using a laser marking device for a throttle valve, which relates to the laser marking device for a throttle valve, is characterized in that it includes the following steps:

[0036] S1. Fix the throttle valve on the positioning tooling;

[0037] S2. The laser marking machine marks the marking area on the dust cover. After the marking is completed, a code is formed. The scanning device scans the code and feeds back the scanned information to the verification unit.

[0038] S3. The verification unit determines whether the throttle valve code is qualified.

[0039] In view of the above technical features, the present invention has the following beneficial effects:

[0040] 1. A laser marking device for a throttle valve of the present invention, after the laser marking machine marks the throttle valve product, a scanning device (such as a barcode scanner) immediately scans the corresponding code and feeds it back to a verification unit, and the verification unit compares and analyzes whether there are repeated codes, wrong codes or incomplete codes. If so, it is judged as an unqualified product, if not, it is a qualified product. In the coding link, the code inspection is automatically realized.

[0041] 2. The positioning tool of the present invention has an adjustable horizontal spacing between two positioning pins (i.e., the first positioning pin and the second positioning pin) embedded in the throttle mounting hole, and an adjustable vertical height of the two positioning pins, so that throttle products of different specifications can be installed, that is, the two positioning pins can be embedded in the corresponding mounting holes of throttle products of different specifications to achieve positioning of throttle products of different specifications.

[0042] 3. With the positioning tool of the present invention, the positioned throttle product can move back and forth under the laser marking machine, so that the marking area of ​​the positioned product can be accurately placed within the marking area of ​​the laser marking machine. Ultimately, only one set of positioning tool is needed to meet the laser marking requirements of throttle products of multiple specifications, thus saving costs and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the structure of a laser marking device for a throttle in specific embodiment 1. Figure 1 (Equipped with throttle valve).

[0044] Figure 2 This is a schematic diagram of the structure of a laser marking device for a throttle in specific embodiment 1. Figure 2 (Equipped with throttle valve).

[0045] Figure 3 It is a schematic diagram of the structure of the throttle valve in specific embodiment 1.

[0046] Figure 4This is a schematic diagram of the structure of a laser marking device for a throttle in specific embodiment 1. Figure 2 (without throttle).

[0047] Figure 5 It is a schematic diagram of fixing the bottom plate and the workbench in specific embodiment 1.

[0048] Figure 6 This is a schematic diagram of the structure of the positioning tool in specific embodiment 1 Figure 1 (stereoscopic angle).

[0049] Figure 7 This is a schematic diagram of the structure of the positioning tool in specific embodiment 1 Figure 2 (stereoscopic angle).

[0050] Figure 8 This is a schematic diagram of the structure of the positioning tool in specific embodiment 1 Figure 3 (Top view angle).

[0051] Fig. 9 This is a schematic diagram of the structure of the positioning tool in specific embodiment 1 Figure 4 (stereoscopic angle, throttle installation).

[0052] In the figure: 1, longitudinal fixing plate; 1-1, first slide rail; 1-2, second slide rail; 1-3, third slide slot; 1-4, fourth slide slot; 1-5, first limit block; 1-6, second limit block; 1-7, first slider; 1-8, second slider;

[0053] 2. Horizontal fixing plate; 2-1. Third positioning block; 2-2. Fifth screw rod; 2-3. Reinforcement plate;

[0054] 3. First connecting block; 3-1. First sliding groove; 3-2. First positioning hole; 3-3. First positioning block; 3-4. First screw rod; 3-5. Third connecting block; 3-6. First positioning pin; 3-7. Third screw rod;

[0055] 4, second connecting block; 4-1, second slide groove; 4-2, second positioning hole; 4-3, second positioning block; 4-4, second screw rod; 4-5, fourth connecting block; 4-6, second positioning pin; 4-7, fourth screw rod;

[0056] 5. Bottom plate; 5-1. Third slide rail; 5-2. Third slide block;

[0057] 6. Throttle; 6-1. Marking area on the dust cover; 6-2. Mounting hole;

[0058] 7. Workbench; 7-1. Third positioning hole; 7-2. Fourth positioning block; 7-2-1. Waist-shaped hole;

[0059] 8-1, first scanning device; 8-2, second scanning device;

[0060] 9. Laser marking machine; 9-1. Lifting mechanism; 9-1-1. Support plate; 9-1-2. Scale part; 9-1-3. Connecting plate; 9-1-4. Indicator part;

[0061] 10. Positioning tooling. DETAILED DESCRIPTION

[0062] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0063] See also Figures 1 to 9 , Specific embodiment 1, this embodiment 1 provides a laser marking device for a throttle valve, the laser marking device includes a laser marking machine 9 for marking the throttle valve 6, a positioning tool 10 for fixing the throttle valve 6, a scanning device for scanning the code on the throttle valve 6 and a verification unit for checking the code, the scanning device feeds back the scanned information to the verification unit, and the verification unit determines whether the code of the throttle valve 6 is qualified.

[0064] The positioning fixture 10 includes a transverse fixing plate 2 and a longitudinal fixing plate 1 connected to each other, for example, the bottom of the longitudinal fixing plate 1 is connected to the upper surface of the transverse fixing plate 2. The longitudinal fixing plate 1 is provided with a first moving mechanism for moving the throttle valve 6 up and down, and the first moving mechanism includes two positioning pins for fixing the throttle valve 6 and a distance adjustment mechanism for adjusting the distance between the two positioning pins.

[0065] The first moving mechanism includes a first slide rail 1-1 and a second slide rail 1-2 longitudinally arranged on the longitudinal fixed plate 1, the first slide rail 1-1 and the second slide rail 1-2 are parallel, the positioning pins include a first positioning pin 3-6 and a second positioning pin 4-6, and the distance adjustment mechanism includes a first slide groove 3-1 and a second slide groove 4-1.

[0066] The first slide rail 1-1 is connected to the first connection block 3 through the first slider 1-7, and the first connection block 3 can slide up and down along the first slide rail 1-1 to adjust the height of the first connection block 3; the second slide rail 1-2 is connected to the second connection block 4 through the second slider 1-8, and the second connection block 4 can slide up and down along the second slide rail 1-2 to adjust the height of the first connection block 3. A first limit block 1-5 is provided on the top of the first slide rail 1-1 to prevent the first slider 1-7 from slipping off the top of the first slide rail 1-1, and a second limit block 1-6 is provided on the top of the second slide rail 1-2 to prevent the second slider 1-8 from slipping off the top of the second slide rail 1-2.

[0067] A first transverse slot 3-1 is provided on the side of the first connecting block 3 facing away from the first slide rail 1-1, and the first slot 3-1 is connected to the third connecting block 3-5. A first positioning pin 3-6 is provided on the side of the third connecting block 3-5 facing away from the first slot 3-1, and the first positioning pin 3-6 can slide transversely (for example, slide left and right) along the first slot 3-1 through the third connecting block 3-5. A second transverse slot 4-1 is provided on the side of the second connecting block 4 facing away from the second slide rail 1-2, and the second slot 4-1 is connected to the fourth connecting block 4-5. A second positioning pin 4-6 is provided on the side of the fourth connecting block 4-5 facing away from the second slot 4-1, and the second positioning pin 4-6 can slide transversely (for example, slide left and right) along the second slot 4-1 through the fourth connecting block 4-5.

[0068] The third connection block 3-5 moves horizontally with the first positioning pin 3-6 in the first slide groove 3-1, and the fourth connection block 4-5 moves horizontally with the second positioning pin 4-6 in the second slide groove 4-1. The distance between the first positioning pin 3-6 and the second positioning pin 4-6 can be adjusted to embed the throttle valve 6 products of different specifications into the corresponding installation holes, so that the throttle valve 6 products of different specifications can be installed on the positioning fixture 10. At the same time, the first positioning pin 3-6 and the second positioning pin 4-6 can be moved horizontally synchronously to adjust the horizontal position of the throttle valve 6, so that the throttle valve 6 is located directly below the laser marking machine, which is convenient for the laser marking machine to mark. Then the first connecting block 3 moves up and down along the first slide rail 1-1 with the first positioning pin 3-6, and the second connecting block 4 moves up and down along the second slide rail 1-2 with the second positioning pin 4-6. The height of the first connecting block 3 and the height of the second connecting block 4 are adjusted to realize the up and down movement of the throttle 6, and the overall height of the throttle 6 is adjusted to ensure that the marking area of ​​the throttle 6 (such as the marking area 6-1 of the dust cover) is placed at a specified height to facilitate marking by the laser marking machine.

[0069] A third longitudinal slot 1-3 and a fourth longitudinal slot 1-4 are respectively provided at both ends of the longitudinal fixed plate 1. The first positioning block 3-3 is fixed in the third slot 1-3 on one side of the longitudinal fixed plate 1 by a first screw 3-4. At the same time, the first positioning block 3-3 is abutted against the first connecting block 3. The first positioning block 3-3 and the first slide rail 1-1 jointly clamp the first connecting block 3 that has reached a specified height to position the first connecting block 3 and ensure that the first connecting block 3 will not accidentally slide up and down on the first slide rail 1-1. The second positioning block 4-3 is fixed in the fourth slot 1-4 on the other side of the longitudinal fixed plate 1 by a second screw 4-4. At the same time, the second positioning block 4-3 is abutted against the second connecting block 4. The second positioning block 4-3 and the second slide rail 1-2 jointly clamp the second connecting block 4 that has reached a specified height to position the second connecting block 4 and ensure that the second connecting block 4 will not accidentally slide up and down on the second slide rail 1-2.

[0070] The first connecting block 3 is provided with a first positioning hole 3-2, and the third screw rod 3-7 is threadedly connected to the first positioning hole 3-2 and abuts against the third connecting block 3-5 to position the third connecting block 3-5, thereby ensuring that the first positioning pin 3-6 does not accidentally slide in the horizontal direction. Preferably, there are three first positioning holes 3-2, which are evenly distributed on the top of the first connecting block 3, and the third connecting blocks 3-5 at different horizontal positions are positioned respectively. The second connecting block 4 is provided with a second positioning hole 4-2, and the fourth screw rod 4-7 is threadedly connected to the second positioning hole 4-2 and abuts against the fourth connecting block 4-5 to position the fourth connecting block 4-5, thereby ensuring that the second positioning pin 4-6 does not accidentally slide in the horizontal direction. Preferably, there are three second positioning holes 4-2, which are evenly distributed on the top of the second connecting block 4, and the fourth connecting blocks 4-5 at different horizontal positions are positioned respectively.

[0071] A bottom plate 5 is also provided below the transverse fixing plate 2, and a third slide rail 5-1 is provided on the top of the bottom plate 5. The transverse fixing plate 2 is connected to the third slide rail 5-1 through the third slider 5-2, and the third slide rail 5-1 is parallel to the first positioning pin 3-6 and the second positioning pin 4-6. There are two third slide rails 5-1, which are arranged in parallel on the bottom plate 5. The bottom plate 5 slides forward and backward on the third slide rail 5-1 to adjust the front and rear positions of the transverse fixing plate 2 and the longitudinal fixing plate 1, and ensure that the throttle 6 fixed by the first positioning pin 3-6 and the second positioning pin 4-6 is located directly below the laser marking machine, which is convenient for the laser marking machine to mark.

[0072] A third positioning block 2-1 is provided at one or both ends of the transverse fixing plate 2, and the third positioning block 2-1 is provided with a third positioning hole. The fifth screw 2-2 is threadedly connected with the third positioning hole and abuts against the bottom plate 5, so as to position the transverse fixing plate 2 at a specified position of the bottom plate 5, so as to prevent accidental sliding on the third slide rail 5-1, and ensure that the throttle valve 6 is located directly below the laser marking machine. There are two third positioning blocks 2-1, which are respectively located on both sides of the transverse fixing plate 2, and both ends of the transverse fixing plate 2 are fixed to the bottom plate 5 at the same time.

[0073] A reinforcing plate 2 - 3 is provided between the longitudinal fixing plate 1 and the transverse fixing plate 2 to increase the connection stability between the longitudinal fixing plate 1 and the transverse fixing plate 2 .

[0074] The positioning tool 10 in this embodiment 1 installs throttle valves 6 of different specifications or models by adjusting the horizontal spacing between the first positioning pins 3-6 and the second positioning pins 4-6, and then adjusts the height of the throttle valve 6 through the first slide rail 1-1 and the second slide rail 1-2, and adjusts the front and rear position of the throttle valve 6 by moving the transverse fixing plate 2 in the front and rear directions. In other words, the throttle valve 6 can be adjusted in three-dimensional directions to ensure that the marking area of ​​the throttle valve 6 (such as the marking area 6-1 of the dust cover) is located at a specified height directly below the laser marking machine, so that the laser marking machine can mark throttle valves 6 of different specifications or models.

[0075] The laser marking device includes a workbench 7 and a fourth positioning block 7-2, a laser marking machine 9 is fixed on the workbench 7 through a lifting mechanism 9-1, a scanning device is fixed on the workbench 7, a bottom plate 5 of a positioning tool is placed on the workbench 7, a positioning tool 10 corresponds to the bottom of the laser marking machine 9, and the scanning device corresponds to the code position of the throttle valve 6 on the positioning tool 10;

[0076] The workbench 7 is provided with a plurality of third positioning holes 7-1, and the fourth positioning block 7-2 is provided with a waist-shaped hole 7-2-1. The fourth positioning block 7-2 is pressed on the base plate 5 of the positioning tool. The waist-shaped hole 7-2-1 of the fourth positioning block 7-2 and the third positioning hole 7-1 are connected by bolts, which is convenient for moving the base plate 5 and indirectly moving the positioning tool, so as to facilitate adjusting the positions of the first positioning pin 3-6 and the second positioning pin 4-6 after removing the positioning tool 10, so as to meet the marking and positioning requirements of throttle valves 6 of different specifications.

[0077] A method for using a laser marking device for a throttle valve, which relates to the above-mentioned laser marking device for a throttle valve, is characterized in that it includes the following steps:

[0078] S1. Slide the first connecting block 3 up and down along the first slide rail 1-1 to a specified height, slide the first positioning block 3-3 up and down along the third slide groove 1-3 to a specified height, tighten the first screw 3-4, so that the first positioning block 3-3 abuts against the first connecting block 3, and the position of the first connecting block 3 on the first slide rail 1-1 is fixed, and then the third connecting block 3-5 with the first positioning pin 3-6 slides left and right along the first slide groove 3-1 to a specified position, tighten the third screw 3-7, so that the position of the third connecting block 3-5 in the first slide groove 3-1 is fixed, and then the first positioning pin 3-6 is embedded in a mounting hole 6-2 of the throttle 6;

[0079] S2. Slide the second connecting block 4 up and down along the second slide rail 1-2 to a specified height, slide the second positioning block 4-3 up and down along the fourth slide slot 1-4 to a specified height, tighten the second screw 4-4, so that the second positioning block 4-3 is against the second connecting block 4, and the second connecting block 4 is fixed on the second slide rail 1-2, and then slide the fourth connecting block 4-5 with the second positioning pin 4-6 along the second slide slot 4-1 to the specified position, tighten the fourth screw 4-7 to fix the position of the fourth connecting block 4-5 in the second slide slot 4-1, and then embed the second positioning pin 4-6 into another mounting hole 6-2 on the diagonal of the throttle 6. At this point, the throttle 6 is installed on the positioning fixture 10. If the throttle 6 of the same specification is laser marked later, the throttle 6 can be replaced. If the throttle 6 of other different specifications is laser marked later, refer to the above method to adjust the position of the first positioning pin 3-6 and / or the second positioning pin 4-6 to fix the throttles 6 of different specifications;

[0080] S3, place the bottom plate 5 of the positioning fixture just below the laser marking machine 9, press the two fourth positioning blocks 7-2 on both sides of the bottom plate 5, and then connect the waist-shaped hole 7-2-1 of the fourth positioning block 7-2 and the third positioning hole 7-1 of the workbench 7 by bolts to fix the position between the bottom plate 5 and the workbench 7, and then slide the transverse fixing plate 2 back and forth along the third slide rail 5-1 to ensure that the throttle valve 6 is located just below the laser marking machine, and then tighten the fifth screw 2-2, the fifth screw 2-2 presses against the bottom plate 5, and fixes the position of the transverse fixing plate 2 on the bottom plate 5;

[0081] S4. Adjust the height of the laser marking machine 9 by means of the lifting mechanism 9-1 to ensure that the marking position of the laser marking machine (9) falls accurately on the marking area 6-1 on the throttle dust cover, and ensure that the quality of the marked code is good;

[0082] Preferably, in step S4, the lifting mechanism 9-1 is a vertical screw-nut mechanism, the nut of the screw-nut mechanism is connected to the support plate, and the laser marking machine 9 is fixed on the support plate 9-1-1;

[0083] S5, the laser marking machine 9 marks the marking area on the dust cover. After the marking is completed, a code is formed, and the scanning device scans the code and feeds back the scanned information to the verification unit;

[0084] Preferably, in step S5, two scanning devices are provided, namely, a first scanning device 8-1 and a second scanning device 8-2. The first scanning device 8-1 is used to scan the code printed by the laser marking machine 9 on the throttle valve 6, and the verification unit will subsequently verify whether the code is qualified. The second scanning device 8-2 scans the code carried by the throttle valve 6 during the previous processing, and the verification unit will subsequently verify whether the code is qualified. The first scanning device 8-1 and the second scanning device 8-2 can select a QR code or barcode scanner or other code reader or an existing device for reading digital codes according to actual needs.

[0085] S6. The verification unit first makes the first judgment, that is, whether the code information fed back by the scanning device is complete. If the code information is incomplete, it is judged as an unqualified product. If the code information is complete, the second judgment is made, that is, whether the code information fed back by the scanning device is valid. If the code information does not meet the validity requirements, it is judged as an unqualified product. If the code meets the validity requirements, the third judgment is made, that is, whether the code information fed back by the scanning device is repeated. If the code information is repeated, it is judged as an unqualified product. If the code information is not repeated, it is judged as a qualified product.

[0086] Preferably, in step S6, the judgment of whether the code information is complete refers to whether the two-dimensional code, barcode or digital code is complete, the judgment of whether the code information is valid refers to whether the two-dimensional code, barcode or digital code meets the preset format requirements, and the judgment of whether the code information is repeated refers to checking the two-dimensional code, barcode or digital code with the code information that has been used in the database to determine whether it is repeated; if the verification unit determines that it is an unqualified product, the verification information will be fed back to the control unit, and the control unit will control the alarm to sound an alarm.

[0087] The laser marking device for the throttle valve in the first embodiment of the present invention can automatically check the code during the coding process, intercept products with unqualified codes, improve the code qualification rate of the throttle valve products leaving the factory, and ensure that each code can accurately trace the product.

[0088] See also Figures 1 to 9 , Specific embodiment 2, this embodiment 2 provides a laser marking device for a throttle valve, the laser marking device includes a laser marking machine 9 for marking the throttle valve 6, a positioning tool 10 for fixing the throttle valve 6, a scanning device for scanning the code on the throttle valve 6 and a verification unit for checking the code, the scanning device feeds back the scanned information to the verification unit, and the verification unit determines whether the code of the throttle valve 6 is qualified.

[0089] A method for using a laser marking device for a throttle valve, which relates to the above-mentioned laser marking device for a throttle valve, is characterized in that it includes the following steps:

[0090] S1, fixing the throttle valve 6 on the positioning tool 10;

[0091] S2, the laser marking machine 9 marks the marking area 6-1 on the dust cover. After the marking is completed, a code is formed, and the scanning device scans the code and feeds back the scanned information to the verification unit;

[0092] S3. The verification unit determines whether the throttle valve code is qualified.

[0093] The laser marking device for the throttle valve in the second embodiment of the present invention can automatically check the code during the coding process, intercept products with unqualified codes, improve the code qualification rate of the throttle valve products leaving the factory, and ensure that each code can accurately trace the product.

[0094] See also Figures 1 to 9 , Specific embodiment 3, this embodiment 3 provides a laser marking device for a throttle valve, the difference between embodiment 3 and the previous embodiment is that: a scale part 9-1-2 is also provided on the side of the lifting mechanism 9-1, the movable end of the lifting mechanism 9-1 is connected to the support plate 9-1-1 through a connecting plate 9-1-3, and an indicating part 9-1-2 is provided on the side of the connecting plate. The indicating part 9-1-2 corresponds to the scale of the scale part 9-1-2, which more intuitively displays the up and down movement of the laser marking machine, so as to facilitate more accurate adjustment of the up and down position of the laser marking machine.

[0095] The method for using a laser marking device for a throttle valve in this embodiment 3 relates to the above-mentioned laser marking device for a throttle valve. The difference between the method of use in the above-mentioned embodiments is that: in step S4, the height of the laser marking machine 9 is adjusted by the lifting mechanism 9-1, and the indicating part 9-1-2 corresponds to the scale of the scale part 9-1-2 to more quickly move the laser marking machine 9 to the specified height.

[0096] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0098] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laser marking device for a throttle valve, characterized in that: The laser marking device comprises a laser marking machine (9) for marking a throttle valve (6), a positioning tool (10) for fixing the throttle valve (6), a scanning device for scanning a code on the throttle valve (6), and a verification unit for checking the code. The scanning device feeds back information obtained by scanning to the verification unit, and the verification unit determines whether the code on the throttle valve (6) is qualified.

2. According to claim 1, a laser marking device for a throttle valve, characterized in that: The positioning tool (10) comprises a transverse fixing plate (2) and a longitudinal fixing plate (1) which are connected to each other. The longitudinal fixing plate (1) is provided with a first moving mechanism for moving the throttle valve (6) up and down. The first moving mechanism comprises two positioning pins for fixing the throttle valve (6) and a distance adjustment mechanism for adjusting the distance between the two positioning pins.

3. The laser marking device for a throttle valve according to claim 2, characterized in that: The first moving mechanism comprises a first slide rail (1-1) and a second slide rail (1-2) longitudinally arranged on the longitudinal fixing plate (1), the first slide rail (1-1) and the second slide rail (1-2) are parallel, the positioning pin comprises a first positioning pin (3-6) and a second positioning pin (4-6), and the distance adjustment mechanism comprises a first slide groove (3-1) and a second slide groove (4-1); The first slide rail (1-1) is connected to the first connection block (3) via a first slider (1-7); a first transverse slide groove (3-1) is provided on a side of the first connection block (3) facing away from the first slide rail (1-1); the first slide groove (3-1) is connected to the third connection block (3-5); and a first positioning pin (3-6) is provided on a side of the third connection block (3-5) facing away from the first slide groove (3-1); The second slide rail (1-2) is connected to the second connection block (4) via a second slider (1-8); a second transverse slide groove (4-1) is provided on the side of the second connection block (4) facing away from the second slide rail (1-2); the second slide groove (4-1) is connected to the fourth connection block (4-5); and a second positioning pin (4-6) is provided on the side of the fourth connection block (4-5) facing away from the second slide groove (4-1); The third connecting block (3-5) moves horizontally with the first positioning pin (3-6) in the first slide groove (3-1), and the fourth connecting block (4-5) moves horizontally with the second positioning pin (4-6) in the second slide groove (4-1) to adjust the distance between the first positioning pin (3-6) and the second positioning pin (4-6). The first connecting block (3) moves vertically with the first positioning pin (3-6) along the first slide rail (1-1), and the second connecting block (4) moves vertically with the second positioning pin (4-6) along the second slide rail (1-2), thereby realizing the vertical movement of the throttle valve (6).

4. The laser marking device for a throttle valve according to claim 3, characterized in that: A third longitudinal slide groove (1-3) and a fourth longitudinal slide groove (1-4) are respectively provided at both ends of the longitudinal fixing plate (1); the first positioning block (3-3) is fixed in the third slide groove (1-3) on one side of the longitudinal fixing plate (1) by means of a first screw rod (3-4), and the first positioning block (3-3) abuts against the first connecting block (3); the second positioning block (4-3) is fixed in the fourth slide groove (1-4) on the other side of the longitudinal fixing plate (1) by means of a second screw rod (4-4), and the second positioning block (4-3) abuts against the second connecting block (4); The first connection block (3) is provided with a first positioning hole (3-2), the third screw rod (3-7) is threadedly connected to the first positioning hole (3-2) and then abuts against the third connection block (3-5), the second connection block (4) is provided with a second positioning hole (4-2), the fourth screw rod (4-7) is threadedly connected to the second positioning hole (4-2) and then abuts against the fourth connection block (4-5).

5. The laser marking device for a throttle valve according to claim 4, characterized in that: A bottom plate (5) is also provided below the transverse fixing plate (2), a third slide rail (5-1) is provided on the top of the bottom plate (5), the transverse fixing plate (2) is connected to the third slide rail (5-1) via a third slider (5-2), and the third slide rail (5-1) is parallel to the first positioning pin (3-6) and the second positioning pin (4-6); A third positioning block (2-1) is provided at one or both ends of the transverse fixing plate (2), the third positioning block (2-1) is provided with a third positioning hole, and the fifth screw rod (2-2) is threadedly connected to the third positioning hole and abuts against the bottom plate (5).

6. The laser marking device for a throttle valve according to claim 5, characterized in that: There are three first positioning holes (3-2) evenly distributed on the top of the first connecting block (3), and there are three second positioning holes (4-2) evenly distributed on the top of the second connecting block (4); The bottom of the longitudinal fixing plate (1) is connected to the upper surface of the transverse fixing plate (2); A reinforcing plate (2-3) is provided between the longitudinal fixing plate (1) and the transverse fixing plate (2); A first limiting block (1-5) is provided on the top of the first slide rail (1-1), and a second limiting block (1-6) is provided on the top of the second slide rail (1-2); There are two third positioning blocks (2-1), which are respectively located on both sides of the transverse fixing plate (2); There are two third slide rails (5-1) which are arranged in parallel on the bottom plate (5).

7. The laser marking device for a throttle valve according to claim 6, characterized in that: The laser marking device comprises a workbench (7) and a fourth positioning block (7-2); a laser marking machine (9) is fixed on the workbench (7) via a lifting mechanism (9-1); a scanning device is fixed on the workbench (7); a bottom plate (5) of a positioning tool is placed on the workbench (7); a positioning tool (10) corresponds to the position directly below the laser marking machine (9); and the scanning device corresponds to the mark of the throttle valve (6) on the positioning tool (10); The workbench (7) is provided with a plurality of third positioning holes (7-1), the fourth positioning block (7-2) is provided with a waist-shaped hole (7-2-1), the fourth positioning block (7-2) is pressed on the bottom plate (5) of the positioning tool, and the waist-shaped hole (7-2-1) of the fourth positioning block (7-2) and the third positioning hole (7-1) are connected by bolts.

8. A method for using a laser marking device for a throttle valve, which relates to the laser marking device for a throttle valve of claim 7, characterized in that: The following steps are involved: S1, slide the first connection block (3) up and down along the first slide rail (1-1) to a specified height, slide the first positioning block (3-3) up and down along the third slide groove (1-3) to a specified height, tighten the first screw rod (3-4) so ​​that the first positioning block (3-3) abuts against the first connection block (3), and the position of the first connection block (3) on the first slide rail (1-1) is fixed, then slide the third connection block (3-5) with the first positioning pin (3-6) left and right along the first slide groove (3-1) to a specified position, tighten the third screw rod (3-7) so that the position of the third connection block (3-5) in the first slide groove (3-1) is fixed, and then embed the first positioning pin (3-6) into a mounting hole (6-2) of the throttle valve (6); S2, slide the second connection block (4) up and down along the second slide rail (1-2) to a specified height, slide the second positioning block (4-3) up and down along the fourth slide groove (1-4) to a specified height, tighten the second screw rod (4-4) so ​​that the second positioning block (4-3) abuts against the second connection block (4), the second connection block (4) is fixed on the second slide rail (1-2), and then slide the fourth connection block (4-5) with the second positioning pin (4-6) along the second slide groove (4-1) to the left and right to a specified position, tighten the fourth screw rod (4-7) so that the fourth connection block (4 -5) is fixed in position in the second slide groove (4-1), and then the second positioning pin (4-6) is embedded in another mounting hole (6-2) on the diagonal of the throttle valve (6). At this point, the throttle valve (6) is mounted on the positioning fixture (10). If a throttle valve (6) of the same specification is subsequently laser marked, the throttle valve (6) can be replaced. If a throttle valve (6) of other specifications is subsequently laser marked, the position of the first positioning pin (3-6) and / or the second positioning pin (4-6) is adjusted according to the above method to fix the throttle valve (6) of different specifications; S3, placing the bottom plate (5) of the positioning fixture just below the laser marking machine (9), pressing the two fourth positioning blocks (7-2) on both sides of the bottom plate (5), and then connecting the waist-shaped hole (7-2-1) of the fourth positioning block (7-2) and the third positioning hole (7-1) of the workbench (7) by bolts to achieve the position fixation between the bottom plate (5) and the workbench (7), and then sliding the transverse fixing plate (2) back and forth along the third slide rail (5-1) to ensure that the throttle valve (6) is located just below the laser marking machine, and then tightening the fifth screw rod (2-2), the fifth screw rod (2-2) abuts against the bottom plate (5), and the position fixation of the transverse fixing plate (2) on the bottom plate (5); S4, adjusting the height of the laser marking machine (9) by means of the lifting mechanism (9-1) to ensure that the marking position of the laser marking machine (9) accurately falls within the marking area (6-1) on the throttle dust cover; S5, the laser marking machine (9) marks the marking area on the dust cover. After the marking is completed, a code is formed. The scanning device scans the code and feeds back the scanned information to the verification unit; S6. The verification unit first makes the first judgment, that is, whether the code information fed back by the scanning device is complete. If the code information is incomplete, it is judged as an unqualified product. If the code information is complete, the second judgment is made, that is, whether the code information fed back by the scanning device is valid. If the code information does not meet the validity requirements, it is judged as an unqualified product. If the code meets the validity requirements, the third judgment is made, that is, whether the code information fed back by the scanning device is repeated. If the code information is repeated, it is judged as an unqualified product. If the code information is not repeated, it is judged as a qualified product.

9. The method for using the laser marking device for a throttle valve according to claim 8, characterized in that: In step S4, the lifting mechanism (9-1) is a vertical screw-nut mechanism, the nut of the screw-nut mechanism is connected to the support plate, and the laser marking machine (9) is fixed on the support plate (9-1-1); In step S5, two scanning devices are provided, namely a first scanning device (8-1) and a second scanning device (8-2). The first scanning device (8-1) is used to scan the code printed on the throttle valve (6) by the laser marking machine (9), and the verification unit is used to verify whether the code is qualified. The second scanning device (8-2) is used to scan the code carried by the throttle valve (6) during the previous processing, and the verification unit is used to verify whether the code is qualified. In step S6, the judgment of whether the code information is complete refers to whether the two-dimensional code, barcode or digital code is complete, the judgment of whether the code information is valid refers to whether the two-dimensional code, barcode or digital code meets the preset format requirements, and the judgment of whether the code information is repeated refers to checking the two-dimensional code, barcode or digital code with the code information that has been used in the database to determine whether it is repeated; if the verification unit determines that it is an unqualified product, the verification information will be fed back to the control unit, and the control unit will control the alarm to sound an alarm.

10. A method for using a laser marking device for a throttle valve, relating to the laser marking device for a throttle valve of claim 1, characterized in that: The following steps are involved: S1, fixing the throttle valve (6) on the positioning tool (10); S2, the laser marking machine (9) marks the marking area (6-1) on the dust cover. After the marking is completed, a code is formed. The scanning device scans the code and feeds back the scanned information to the verification unit; S3. The verification unit determines whether the throttle valve code is qualified.

Images