Automobile floating horn switch assembly assembling detection device and method

Abstract

The invention relates to the field of automobile floating horn detection devices, and discloses an automobile floating horn switch assembly assembling detection device and method.The automobile floating horn switch assembly assembling detection device comprises a workbench, supporting legs are fixedly connected to the bottom of the workbench, a baffle is fixedly connected to the workbench, and a sliding groove is formed in the top of the workbench; an electromagnetic sliding block is arranged on the sliding groove in a sliding mode, a mounting base is connected to the electromagnetic sliding block in a magnetic attraction mode, a loudspeaker body is inserted into the top of the mounting base, the mounting base is specifically semicircular, positive and negative electrode wires which are symmetrically distributed are electrically connected to one side of the loudspeaker body, and the positive and negative electrode wires are arranged on one side of the plane end of the mounting base. And the plane end of the mounting seat is fixedly connected with connecting plates which are symmetrically distributed. According to the invention, the problems of long time consumption, low efficiency, difficulty in ensuring comprehensiveness and accuracy due to subjectivity and uncertainty and increase of product quality risk of manual detection in large-scale production in automobile floating horn detection work are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile floating horn detection devices, and in particular to an automobile floating horn switch assembly assembly detection device and method. Background Art

[0002] In the automotive manufacturing industry, the floating horn switch assembly is a crucial component of the vehicle's audible alarm system, and its quality and performance are directly linked to the vehicle's safety and reliability. Traditionally, the assembly and inspection process for floating horn switch assemblies relies heavily on manual labor, including horn installation, wiring inspection, and functional testing. However, manual inspection is time-consuming and labor-intensive, especially in large-scale production environments. Inspection speeds often fail to meet production line requirements, resulting in low production efficiency. Due to the subjectivity and uncertainty inherent in manual inspection, it's difficult to ensure that every floating horn switch assembly is fully and accurately inspected, increasing the risk of product quality issues. Summary of the Invention

[0003] The problem to be solved by the present invention is that manual testing is time-consuming and inefficient in large-scale production, and it is difficult to ensure comprehensive accuracy due to subjectivity and uncertainty, which increases product quality risks.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: an assembly and detection device and method for an automobile floating horn switch assembly, comprising a workbench, the bottom of the workbench is fixedly connected to a support leg, the workbench is fixedly connected to a baffle, the top of the workbench is provided with a slide groove, an electromagnetic slider is slidably provided on the slide groove, a mounting seat is magnetically connected to the electromagnetic slider, a horn body is plugged into the top of the mounting seat, the mounting seat is specifically semicircular, one side of the horn body is electrically connected to positive and negative poles that are symmetrically distributed, and the positive and negative poles are placed on the mounting seat. On one side of the plane end of the mounting seat, the plane end of the mounting seat is fixedly connected to a symmetrically distributed connecting plate, the inner wall of the connecting plate is provided with an arc-shaped groove, a fixed column is fixedly connected to one side of the arc-shaped groove, a movable column is slidably arranged in the arc-shaped groove, the fixed column and the movable column both fit the outer wall of the positive and negative poles, the movable column slides in the arc-shaped groove to bend the positive and negative poles at 90°, an extension end is fixedly provided at the center of the inner wall of the baffle, the bottom of the extension end is electrically connected to the symmetrically distributed positive and negative pole sensing ends, and the positive and negative pole sensing ends are in contact with the positive and negative poles.

[0005] Preferably, a slot is provided on the top of the mounting seat for plugging the bottom of the speaker body into the slot, a mounting block is fixedly connected to the bottom of the mounting seat, and magnetic pads are provided on the bottom of the mounting block and the top of the electromagnetic slider.

[0006] Preferably, a material distribution structure is fixedly connected to the bottom of the center of the baffle, and the material distribution structure includes a base, a starting end is provided on the base, and a hydraulic retractor is provided on the base, and the hydraulic retractor is electrically connected to the starting end.

[0007] Preferably, the output end of the hydraulic telescope is fixedly connected to a push head, the two ends of the push head are rotatably connected to connecting rods, the ends of the connecting rods are rotatably connected to clamps, the ends of the base are fixedly connected to symmetrically distributed limit rods, a rotating shaft is provided between the two limit rods, and the center of the clamp is sleeved on the rotating shaft.

[0008] Preferably, a connecting block is fixedly connected to the center of the baffle, a vibration sensor is provided on the top of the connecting block, the input end of the vibration sensor is electrically connected to a first sensing wire, the end of the first sensing wire is provided in the connecting block, the output end of the vibration sensor is electrically connected to a second sensing wire, and the end of the second sensing wire is electrically connected to the starting end.

[0009] Preferably, the end of the connecting block is provided with sensor heads distributed in an array, the sensor heads are electrically connected to the first sensor line, and the end of the sensor head is provided with a vibration receiving head, and the end of the vibration receiving head is in contact with the mounting seat.

[0010] Preferably, a material discharge slope is provided on one side of the top of the workbench, the end of the material discharge slope is fixedly connected to a material receiving box, and drawers distributed in an array are slidably provided on the bottom of the workbench.

[0011] The present invention also provides a method for assembling and detecting an automobile floating horn switch assembly, comprising the following steps:

[0012] S1: Ensure that the workbench is stable and the legs are securely fixed. Check whether the baffle, slide, electromagnetic slider, mounting base and other components are intact. Confirm that the vibration sensor, sensor head, vibration receiving head, positive and negative sensing terminals and other electrical components are connected correctly. Turn on the power, insert the bottom of the speaker body into the slot at the top of the mounting base, ensure that the insertion is firm, align the mounting block at the bottom of the mounting base with the magnetic pad at the top of the electromagnetic slider, and fix the mounting base to the electromagnetic slider through magnetic attraction;

[0013] S2: The positive and negative wires electrically connected to one side of the speaker body are placed on one side of the flat end of the mounting base. By sliding the movable column in the arc groove, the positive and negative wires are bent 90 degrees and contact the positive and negative sensing terminals electrically connected to the bottom of the extended end of the inner wall of the baffle. The positive and negative sensing terminals detect the electrical connection status of the speaker body;

[0014] S3: When the horn body is undergoing electrical testing, the vibration sensor monitors the vibration generated by the horn body during the testing process in real time through the sensor head and the vibration receiving head. If vibration occurs, the vibration sensor sends a signal, which is started by the second sensor line to the starting end. After the starting end receives the signal, it controls the hydraulic telescopic device to extend the push head, and the push head drives the clamping jaws to extend through the connecting rod. The clamping jaws rotate on the rotating shaft between the limit rods. The clamping jaws clamp and push the qualified horn body, so that it slides into the receiving box along the discharge slope. For unqualified horn bodies, the clamping jaws do not clamp them, and the horn body continues to slide along the slide groove for recovery for secondary testing or processing.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0016] (1) The device realizes the rapid installation and removal of the speaker body through the magnetic connection between the electromagnetic slider and the mounting base, which greatly improves the assembly efficiency. At the same time, through the contact between the positive and negative sensing terminals and the positive and negative wires, the electrical connection status of the speaker can be quickly detected to ensure the assembly quality;

[0017] (2) The connection plate, arc groove, fixed column and movable column on the mounting base enable the positive and negative wires to be effectively bent and fixed, avoiding the problem of disorderly lines and ensuring the stability and safety of the lines;

[0018] (3) Through the setting of the material separation structure, including the starting end, hydraulic telescopic device, push head, connecting rod and clamping claws, the automatic sorting and pushing of the horn body is realized, which further improves the production efficiency. At the same time, the setting of the material discharge slope and the material receiving box enables the qualified and tested horns to be automatically discharged, which is convenient for subsequent processing, while the unqualified horns continue to slide along the chute for recovery;

[0019] (4) By setting up vibration sensors and sensor heads, the vibration of the speaker during the assembly process can be monitored in real time, so as to determine whether the speaker is installed in place or there is an abnormality. This not only improves the accuracy of detection, but also can detect problems in time and feedback to the operator to ensure the smooth progress of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of another preferred angle of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the mobile base of the present invention and its installation state with the speaker;

[0023] Figure 4 This is a structural schematic diagram of the mobile base of the present invention;

[0024] Figure 5 This is a schematic diagram of the slider structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the sensing material distribution structure of the present invention.

[0026] In the figure: 1-workbench, 101-chute, 102-unloading slope, 103-support leg, 2-baffle, 3-drawer, 4-receiving box, 5-electromagnetic slider, 501-magnetic pad, 6-speaker body, 601-positive and negative pole lines, 7-extension end, 8-material distribution structure, 801-base, 802-starting end, 803-hydraulic telescope, 804-push head, 805-connecting rod, 806-clamping claw, 807-limiting rod, 9-positive and negative pole sensing end, 10-mounting seat, 1001-mounting block, 1002-slot, 11-connecting plate, 1101-arc groove, 12-fixed column, 13-movable column, 14-connecting block, 15-vibration sensor, 16-sensing head, 17-vibration receiving head, 18-first sensing line, 19-second sensing line. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0028] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words “including” or “comprising” and the like used in this disclosure mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words “connected” or “connected” and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] See also Figures 1-6The present invention provides an assembly and detection device and method for an automobile floating horn switch assembly, comprising a workbench 1, the bottom of which is fixedly connected to a support leg 103 to support the entire device, a baffle 2 fixedly connected to the workbench 1, a slide 101 provided on the top of the workbench 1, an electromagnetic slider 5 slidably provided on the slide 101, a mounting base 10 magnetically connected to the electromagnetic slider 5, a horn body 6 is plugged into the top of the mounting base 10, the mounting base 10 is specifically semicircular, one side of the horn body 6 is electrically connected to symmetrically distributed positive and negative wires 601, the positive and negative wires 601 are placed flat on the mounting base 10 On one side of the face end, the flat end of the mounting seat 10 is fixedly connected to a symmetrically distributed connecting plate 11, and an arc-shaped groove 1101 is provided on the inner wall of the connecting plate 11. A fixed column 12 is fixedly connected to one side of the arc-shaped groove 1101, and a movable column 13 is slidingly arranged in the arc-shaped groove 1101. The fixed column 12 and the movable column 13 both fit the outer wall of the positive and negative pole lines 601. The movable column 13 slides in the arc-shaped groove 1101 to bend the positive and negative pole lines 601 at 90°, which is convenient for contacting the positive and negative pole sensing ends 9 electrically connected to the bottom of the extended end 7 of the inner wall of the baffle 2, thereby detecting the electrical connection status of the speaker body 6.

[0030] See also Figure 3 and Figure 4 A slot 1002 is provided at the top of the mounting base 10 for plugging into the bottom of the speaker body 6. A mounting block 1001 is fixedly connected to the bottom of the mounting base 10. Magnetic pads 501 are provided on the top of the mounting block 1001 and the electromagnetic slider 5, and the mounting base 10 can be quickly installed and disassembled by magnetic attraction.

[0031] See also Figure 1 and Figure 6 The bottom of the baffle 2 is fixedly connected to a material distribution structure 8, which includes a base 801. The base 801 is provided with a starting end 802. The base 801 is provided with a hydraulic retractor 803, and the hydraulic retractor 803 is electrically connected to the starting end 802.

[0032] The output end of the hydraulic telescope 803 is fixedly connected to a push head 804, and the two ends of the push head 804 are rotatably connected to a connecting rod 805. The end of the connecting rod 805 is rotatably connected to a clamping claw 806. The end of the base 801 is fixedly connected to a symmetrically distributed limit rod 807. A rotating shaft is provided between the two limit rods 807, and the center of the clamping claw 806 is sleeved on the rotating shaft.

[0033] A connecting block 14 is fixedly connected to the center of the baffle 2, and a vibration sensor 15 is provided on the top of the connecting block 14. The input end of the vibration sensor 15 is electrically connected to the first sensor line 18, and the end of the first sensor line 18 is provided in the connecting block 14. The output end of the vibration sensor 15 is electrically connected to the second sensor line 19, and the end of the second sensor line 19 is electrically connected to the starting end 802.

[0034] The end of the connecting block 14 is provided with sensor heads 16 distributed in an array, and the sensor heads 16 are all electrically connected to the first sensor line 18. The end of the sensor head 16 is provided with a vibration receiving head 17, and the end of the vibration receiving head 17 is in contact with the mounting seat 10. When the speaker body 6 occurs and vibrates, the vibration sensor 15 sends a signal, and the starting end 802 is sensed and started through the second sensor line 19, thereby controlling the hydraulic telescopic device 803 to extend the push head 804, and then the push head 804 drives the clamping jaw 806 to extend through the connecting rod 805, and then the clamping jaw 806 pushes the qualified speaker body 6 to cut the material.

[0035] See also Figure 1 A material discharge slope 102 is provided on one side of the top of the workbench 1, and the end of the material discharge slope 102 is fixedly connected to the material receiving box 4. The bottom of the workbench 1 is slidingly provided with drawers 3 distributed in an array. After the qualified speaker body 6 is inspected, it is pushed to the material discharge slope 102 through the material dividing structure 8 and automatically slides into the material receiving box 4. The unqualified speaker body 6 continues to slide and be recovered along the slide groove 101 for secondary inspection or processing.

[0036] The present invention also provides a method for assembling and detecting an automobile floating horn switch assembly, comprising the following steps:

[0037] S1: Ensure that the workbench 1 is stable and the legs 103 are securely fixed. Check whether the baffle 2, slide 101, electromagnetic slider 5, mounting base 10 and other components are intact. Confirm that the vibration sensor 15, sensor head 16, vibration receiving head 17, positive and negative sensing terminals 9 and other electrical components are connected correctly. Turn on the power supply, insert the bottom of the speaker body 6 into the slot 1002 at the top of the mounting base 10, and ensure that the plug is secure. Align the mounting block 1001 at the bottom of the mounting base 10 with the magnetic pad 501 at the top of the electromagnetic slider 5, and fix the mounting base 10 to the electromagnetic slider 5 through magnetic attraction.

[0038] S2: The positive and negative wires 601 electrically connected to one side of the speaker body 6 are placed on one side of the flat end of the mounting base 10. The movable post 13 is slid into the arc-shaped groove 1101 to bend the positive and negative wires 601 90 degrees, so that they come into contact with the positive and negative sensing terminals 9 electrically connected to the bottom of the extension end 7 on the inner wall of the baffle 2. The positive and negative sensing terminals 9 detect the electrical connection status of the speaker body 6.

[0039] S3: When the speaker body 6 is electrically tested, the vibration sensor 15 monitors the vibration generated by the speaker body 6 during the test in real time through the sensor head 16 and the vibration receiving head 17. If vibration occurs, the vibration sensor 15 sends a signal, and the starting end 802 is sensed and started through the second sensor line 19. After the starting end 802 receives the signal, the hydraulic telescopic device 803 is controlled to extend the push head 804. The push head 804 drives the clamping jaw 806 to extend through the connecting rod 805. The clamping jaw 806 rotates on the rotating shaft between the limit rods 807. The clamping jaw 806 clamps and pushes the qualified speaker body 6, so that it slides into the receiving box 4 along the unloading slope 102. For unqualified speaker bodies 6, the clamping jaw 806 does not clamp, and the speaker body 6 continues to slide and be recovered along the slide groove 101 for secondary testing or processing.

[0040] The working principle and usage process of the present invention are as follows: ensure that the workbench 1 is stable and the legs 103 are firmly fixed, check whether the baffle 2, slide groove 101, electromagnetic slider 5, mounting base 10 and other components are intact, confirm that the vibration sensor 15, sensor head 16, vibration receiving head 17, positive and negative sensing ends 9 and other electrical components are connected correctly, turn on the power, insert the bottom of the speaker body 6 into the slot 1002 at the top of the mounting base 10, ensure that the plug is firm, align the mounting block 1001 at the bottom of the mounting base 10 with the magnetic pad 501 at the top of the electromagnetic slider 5, and fix the mounting base 10 on the electromagnetic slider 5 by magnetic attraction. The positive and negative wires 601 electrically connected to one side of the speaker body 6 are placed on one side of the flat end of the mounting base 10, and the positive and negative wires 601 are bent 90° in the arc groove 1101 by sliding the movable column 13, so as to electrically connect the positive and negative sensing ends 7 at the bottom of the inner wall of the baffle 2. 9 are in contact, and the positive and negative sensing ends 9 detect the electrical connection status of the speaker body 6. When the speaker body 6 is electrically tested, the vibration sensor 15 monitors the vibration generated by the speaker body 6 during the detection process in real time through the sensor head 16 and the vibration receiving head 17. If vibration occurs, the vibration sensor 15 sends a signal, and the starting end 802 is sensed and started through the second sensor line 19. After the starting end 802 receives the signal, the hydraulic telescopic device 803 is controlled to extend the push head 804, and the push head 804 drives the clamping claw 806 to extend through the connecting rod 805. The clamping claw 806 rotates on the rotating shaft between the limit rods 807, and the clamping claw 806 clamps and pushes the qualified speaker body 6, so that it slides into the receiving box 4 along the unloading slope 102. For unqualified speaker bodies 6, the clamping claw 806 does not clamp, and the speaker body 6 continues to slide and be recovered along the slide groove 101 for secondary detection or processing.

[0041] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. An assembly detection device for a floating horn switch assembly of an automobile, characterized in that: The invention comprises a workbench (1), wherein the bottom of the workbench (1) is fixedly connected with a support leg (103), the workbench (1) is fixedly connected with a baffle (2), the top of the workbench (1) is provided with a slide groove (101), an electromagnetic slider (5) is slidably provided on the slide groove (101), a mounting seat (10) is magnetically connected to the electromagnetic slider (5), a speaker body (6) is plugged into the top of the mounting seat (10), the mounting seat (10) is specifically semicircular, one side of the speaker body (6) is electrically connected with symmetrically distributed positive and negative poles (601), the positive and negative poles (601) are placed on one side of the plane end of the mounting seat (10), and the plane end of the mounting seat (10) is fixedly connected with symmetrically distributed positive and negative poles (601). A connecting plate (11) is distributed, and an arc groove (1101) is opened on the inner wall of the connecting plate (11), a fixed column (12) is fixedly connected to one side of the arc groove (1101), and a movable column (13) is slidably arranged in the arc groove (1101), and the fixed column (12) and the movable column (13) are both in contact with the outer wall of the positive and negative electrode lines (601), and the movable column (13) slides in the arc groove (1101) to bend the positive and negative electrode lines (601) at 90 degrees, and an extension end (7) is fixedly arranged at the center of the inner wall of the baffle (2), and the bottom of the extension end (7) is electrically connected to the positive and negative electrode sensing ends (9) that are symmetrically distributed, and the positive and negative electrode sensing ends (9) are in contact with the positive and negative electrode lines (601).

2. The vehicle floating horn switch assembly detection device according to claim 1, characterized in that: A slot (1002) is provided at the top of the mounting seat (10), and the slot (1002) is for the bottom of the speaker body (6) to be plugged in. A mounting block (1001) is fixedly connected to the bottom of the mounting seat (10), and a magnetic pad (501) is provided at the bottom of the mounting block (1001) and the top of the electromagnetic slider (5).

3. The automobile floating horn switch assembly detection device according to claim 1, characterized in that: A material distribution structure (8) is fixedly connected to the bottom of the center of the baffle (2), and the material distribution structure (8) comprises a base (801), a starting end (802) is provided on the base (801), and a hydraulic expansion joint (803) is provided on the base (801), and the hydraulic expansion joint (803) is electrically connected to the starting end (802).

4. The vehicle floating horn switch assembly detection device according to claim 3, characterized in that: The output end of the hydraulic telescopic device (803) is fixedly connected to a push head (804), the two ends of the push head (804) are rotatably connected to connecting rods (805), the ends of the connecting rods (805) are rotatably connected to clamping claws (806), and the ends of the base (801) are fixedly connected to symmetrically distributed limiting rods (807), a rotating shaft is provided between the two limiting rods (807), and the center of the clamping claws (806) is sleeved on the rotating shaft.

5. The vehicle floating horn switch assembly detection device according to claim 1, characterized in that: A connecting block (14) is fixedly connected to the center of the baffle (2), a vibration sensor (15) is provided on the top of the connecting block (14), an input end of the vibration sensor (15) is electrically connected to a first sensing line (18), an end of the first sensing line (18) is provided in the connecting block (14), an output end of the vibration sensor (15) is electrically connected to a second sensing line (19), and an end of the second sensing line (19) is electrically connected to a starting end (802).

6. The automobile floating horn switch assembly detection device according to claim 5, characterized in that: The end of the connecting block (14) is provided with sensor heads (16) distributed in an array, and the sensor heads (16) are all electrically connected to the first sensor line (18). The end of the sensor head (16) is provided with a vibration receiving head (17), and the end of the vibration receiving head (17) is in contact with the mounting seat (10).

7. The vehicle floating horn switch assembly detection device according to claim 1, characterized in that: A material discharge slope (102) is provided on one side of the top of the workbench (1), and an end of the material discharge slope (102) is fixedly connected to a material receiving box (4). Drawers (3) distributed in an array are slidably provided on the bottom of the workbench (1).

8. A method for assembling and testing a floating horn switch assembly of an automobile, characterized in that: The steps include: S1: Ensure that the workbench (1) is stable and the legs (103) are firmly fixed. Check whether the baffle (2), slide (101), electromagnetic slider (5), mounting base (10) and other components are intact. Confirm that the electrical components such as the vibration sensor (15), sensor head (16), vibration receiving head (17), positive and negative sensing ends (9) are connected correctly. Turn on the power. Insert the bottom of the speaker body (6) into the slot (1002) at the top of the mounting base (10). Ensure that the plug is firmly connected. Align the mounting block (1001) at the bottom of the mounting base (10) with the magnetic pad (501) at the top of the electromagnetic slider (5). Fix the mounting base (10) on the electromagnetic slider (5) by magnetic attraction. S2: The positive and negative electrode wires (601) electrically connected to one side of the speaker body (6) are placed on one side of the flat end of the mounting base (10), and the positive and negative electrode wires (601) are bent 90 degrees by sliding the movable column (13) in the arc groove (1101) to contact the positive and negative electrode sensing terminals (9) electrically connected to the bottom of the extension end (7) of the inner wall of the baffle (2), and the positive and negative electrode sensing terminals (9) detect the electrical connection status of the speaker body (6); S3: When the speaker body (6) is electrically tested, the vibration sensor (15) monitors the vibration generated by the speaker body (6) during the test in real time through the sensor head (16) and the vibration receiving head (17). If vibration occurs, the vibration sensor (15) sends a signal, which is sensed and started by the start end (802) through the second sensor line (19). After the start end (802) receives the signal, it controls the hydraulic expansion joint (803) to extend the push head (804). The push head (804) ) The connecting rod (805) drives the clamping jaw (806) to extend, and the clamping jaw (806) rotates on the rotating shaft between the limiting rods (807). The clamping jaw (806) clamps and pushes the qualified horn body (6) so that it slides into the receiving box (4) along the unloading slope (102). For the unqualified horn body (6), the clamping jaw (806) does not clamp, and the horn body (6) continues to slide and be recovered along the chute (101) so as to be subjected to secondary inspection or processing.

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