High-precision drilling automatic adjustment device, high-precision automobile headlight bracket drilling machine and drilling method thereof

Abstract

The present invention discloses a high-precision automatic drilling adjustment device, a high-precision automobile headlight bracket drilling machine and a drilling method thereof, wherein the high-precision automatic drilling adjustment device places a first component on a set first limiting fixture, and uses a reference hole located on the set side of the first limiting fixture and with an axis extending along a second direction, and an image acquisition device located on the other side of the first limiting fixture and with a lens facing the reference hole, to determine the position accuracy of the hole of the first component connected to the vehicle body on the fixture by visual positioning analysis, and adjusts the position of the first component in combination with an adjustment device including a power source and an adjustment member to align the position of the hole, and fixes it through front and rear end fixing devices, thereby effectively ensuring the accuracy of the drilling position of the first component and the second component, creating conditions for subsequent riveting operations, and at the same time ensuring the position accuracy of the headlight when it is subsequently assembled to the vehicle body.

Description

Technical Field

[0001] The invention relates to the field of drilling equipment, in particular to a high-precision automatic drilling adjustment device, a high-precision automobile headlight bracket drilling machine and a drilling method thereof. Background Art

[0002] Car headlights, as the eyes of a car, are not only related to the external image of a car, but also closely related to safe driving at night or in bad weather conditions. The installation accuracy seriously affects the driving safety. Usually, car headlights are connected to the car body through car headlight brackets. Therefore, the processing accuracy and installation accuracy of the car headlight brackets themselves are required to be high.

[0003] In progress as attached Figure 1 , Attachment Figure 2 When processing the automobile headlight bracket shown, the first component 300 and the second component 400 are usually assembled by welding them together. However, the welding assembly method causes large thermal deformation of the two components, which can easily cause the shape of the assembled automobile headlight bracket to change, thereby seriously affecting the subsequent installation accuracy.

[0004] Therefore, it is also considered to assemble the two components by riveting. Before riveting, it is necessary to drill rivet holes 305 on the two side walls 306 and 403 of the two components. However, due to the special shapes of the two components 300 and 400, there is a lack of effective workpiece fixing fixtures; in addition, the distance between the rivet hole 305 (the rear end of the first component) and the connection point between the headlight bracket and the car body (the front end of the first component) is very large. At the same time, due to the existence of component processing tolerances, the accuracy of the drilling position of the rivet holes on the two components seriously affects the installation accuracy when subsequently installed on the car body, and effective measures are needed to ensure the accuracy of the drilling position. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a high-precision drilling automatic adjustment device, a high-precision automobile headlight bracket drilling machine and a drilling method thereof.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A high-precision drilling automatic adjustment device comprises a base plate, on which a

[0008] A first limiting fixture has a structure for making the first component lie flat and limit its position;

[0009] The front and rear end fixing devices have a structure for applying pressure and / or clamping force and / or expansion force to the front and rear ends of the first member on the first limiting fixture;

[0010] A position acquisition device, located at the front end of the first limiting fixture, including a reference hole located at a setting side of the first limiting fixture and with an axis extending along the second direction, and an image acquisition device located at the other side of the first limiting fixture and with a lens facing the reference hole;

[0011] An adjusting device, comprising a power source and an adjusting member driven to rise and fall by the power source and capable of passing through a first limiting fixture;

[0012] The control device is at least connected to the position acquisition device and the adjustment device.

[0013] Preferably, in the high-precision drilling automatic adjustment device, the front-end fixing device includes a cylinder located between the reference hole and the image acquisition device, and a locking block is respectively provided on two moving blocks of the cylinder.

[0014] Preferably, in the high-precision drilling automatic adjustment device, the rear end fixing device includes a double-slider cylinder, a socket is provided on one slider of the double-slider cylinder, a pressure block and a pin extending along the first direction X and passing through the pressure block are provided on the other slider, and the socket has a hole or groove corresponding to the pin.

[0015] Preferably, the high-precision drilling automatic adjustment device also includes a second limiting fixture, which is located above the first limiting fixture and includes a limiting table and at least one quick-lock chuck that applies downward pressure to the second component on the limiting table.

[0016] Preferably, in the high-precision automatic drilling adjustment device, a distance measuring device is provided on the side of the image acquisition device.

[0017] Preferably, in the high-precision drilling automatic adjustment device, the base plate can rotate around its axis, and a self-resetting locking pin is provided on the base plate, the locking pin is coaxial with a socket on a fixed-position locking block and is normally embedded in the socket.

[0018] A high-precision automobile headlight bracket drilling machine comprises a drilling device and any one of the above-mentioned high-precision drilling automatic adjustment devices.

[0019] Preferably, in the high-precision automobile headlight bracket drilling machine, the drilling device includes two coaxial drill bits, each drill bit is connected to a motor that drives its rotation, and the two motors are respectively connected to a translation mechanism that drives them to reciprocate along the extension direction of the drill bit.

[0020] Preferably, in the high-precision automobile headlight bracket drilling machine, a dust hood is sleeved on the outer periphery of the drill bit, and an air flow channel is formed in the dust hood.

[0021] Preferably, the high-precision automobile headlight bracket drilling machine further includes a dust suction support box that can be moved between the two drill bits, and a through hole for the drill bit to penetrate is formed on the side panel of the dust suction support box that is perpendicular to the drill bit.

[0022] A high-precision automobile headlight bracket drilling method comprises at least the following steps:

[0023] S1, placing the first component and the second component on the first limiting fixture and the second limiting fixture respectively, and fixing the top of the second component by a quick-lock chuck;

[0024] S2, the rear end fixing device is started to fix the rear end of the first component and the lower end of the second component;

[0025] S3, the image acquisition device acquires an image and sends it to the control device to determine whether adjustment is required and to determine the adjustment amount of the adjustment member;

[0026] S4, when no adjustment is required, execute S5; when adjustment is required, the power source of the adjusting device starts to drive the adjusting member to adjust to the adjustment amount of step S3, and then executes step S5;

[0027] S5, the front end fixing device is started to fix the front end of the first component;

[0028] S6, drilling holes at the same position of the first component and the second component by using a drilling device.

[0029] The advantages of the technical solution of the present invention are mainly reflected in:

[0030] This solution is ingeniously designed. The position accuracy of the hole of the first component on the fixture that connects to the vehicle body is determined through visual positioning analysis. The position of the first component is adjusted in combination with an adjusting device to align the positions of the holes, thereby effectively ensuring the accuracy of the drilling positions of the first component and the second component, creating conditions for subsequent riveting operations, improving the processing quality of the headlight bracket, and at the same time ensuring the position accuracy of the headlight when it is subsequently assembled to the vehicle body, providing safety.

[0031] The scheme designs an effective fixture that can effectively meet the requirements of placing and fixing the first component and the second component at the same time, providing favorable conditions for subsequent adjustments.

[0032] The front-end fixing device of the present scheme can play a role of positioning and limiting in one state, and a fixing role in another state, and applies an expansion force to the first component. Compared with the clamping method, it can avoid causing bending deformation of the side wall of the first component, and at the same time avoid interference with other structures such as other position acquisition devices.

[0033] The rear end fixing device of the present invention can effectively ensure the reliability of fixing by means of surface clamping and pin locking.

[0034] The present solution further provides a distance meter, which can effectively detect the position accuracy of the first component after drilling and riveting, thereby providing data support for subsequent improvements.

[0035] The drilling equipment of this solution uses two drill bits to drill holes at the same time, which can effectively ensure the positioning accuracy and efficiency of drilling. At the same time, both drill bits are equipped with dust suction covers, which can effectively collect the debris generated during drilling, avoid pollution of the workpiece and the environment, and reduce the risks that the debris may cause to the equipment.

[0036] The drilling equipment of the present invention is provided with a dust suction support box, which can further improve the debris collection effect on the one hand, and on the other hand, the support box can provide support for the side walls of the two components, thereby avoiding deformation of the side walls of the components during drilling, effectively ensuring the accuracy and effectiveness of drilling, and is conducive to improving the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] FIG. 1 is a top view of the automobile headlight bracket of the present invention (the figure is only a schematic structure and is not the only limitation of the automobile headlight bracket);

[0038] FIG2 is a front view of the automobile headlight bracket of the present invention (the figure is only a schematic structure and is not the only limitation of the automobile headlight bracket);

[0039] Figure 3 is a perspective view of a first embodiment of a high-precision drilling automatic adjustment device of the present invention;

[0040] Figure 4 is a front view of a first embodiment of a high-precision automatic adjustment device for drilling of the present invention;

[0041] Figure 5 yes Figure 3 A magnified image of area A;

[0042] Figure 6 yes Figure 3 Enlarged view of area B;

[0043] Figure 7 is a stereogram of a second embodiment of the high-precision automatic adjustment device for drilling of the present invention;

[0044] Figure 8 is a three-dimensional diagram of a second limiting fixture of the present invention;

[0045] Fig. 9 is a front view of a second embodiment of the high-precision automatic adjustment device for drilling of the present invention;

[0046] Fig.10 is a cross-sectional view of the locking pin region of the present invention;

[0047] Fig.11 It is a top view of the high-precision automobile headlight bracket drilling machine of the present invention;

[0048] Fig.12 is a front view of the drilling device of the present invention;

[0049] Fig.13 is a perspective view of one side of the drilling device of the present invention;

[0050] Fig.14 is a cross-sectional view of one side of the drilling device of the present invention;

[0051] Fig.15 It is a perspective view of the other side of the drilling device of the present invention. DETAILED DESCRIPTION

[0052] The purpose, advantages and features of the present invention will be illustrated and explained by the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0053] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified 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, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0054] The high-precision automatic adjustment device for drilling disclosed by the present invention is described below in conjunction with the accompanying drawings. Figure 3 As shown, it includes a substrate 6, on which is provided a

[0055] The first limiting fixture 1 has a structure for making the first component 300 lie flat and limit the position;

[0056] The front and rear end fixing devices 2 and 3 have a structure for applying pressure and / or clamping force and / or expansion force to the front and rear ends of the first member on the first limiting fixture 1;

[0057] The position acquisition device 4 is located at the front end of the first limiting fixture 1, and includes a reference hole 41 located at the setting side of the first limiting fixture and with the axis extending along the second direction Y, and an image acquisition device 42 located at the other side of the first limiting fixture and with the lens facing the reference hole 41;

[0058] The adjusting device 5 comprises a power source 51 and an adjusting member 52 driven by the power source to rise and fall and capable of passing through the first limiting fixture 1;

[0059] The control device is at least connected to the position acquisition device 4 and the adjustment device 5.

[0060] Specifically, the shape of the first limiting fixture 1 can be adaptively designed according to the shape of the first component. Figure 4 , Attachment Figure 5 As shown, the first limiting fixture 1 includes a vertical plate 11 fixed on the base plate 6, and two parallel support plates 12 with a gap are arranged at the rear end surface of the vertical plate 11, and a support shaft 13 is mounted at the rear end of the two support plates 12, and an I-shaped bracket 14 is mounted in the middle of the two support plates 12, and two L-shaped blocks 15 are arranged on the I-shaped bracket 14 to form a U shape. A mounting plate 16 located on one side of the support plate 12 is also arranged at the front end surface of the vertical plate 11, and two L-shaped limiting blocks 17 and 18 are arranged on the mounting plate 16, and their positions are staggered. At this time, the first component to be placed is in a bent state.

[0061] Of course, in another feasible embodiment, the mounting plate 16 may also be opposite to the positions of the two support plates 12, that is, it is located directly in front of the two support plates 12, and an L-shaped limit block 17 thereon is opposite to one L-shaped block 15, and another L-shaped limit block 18 is opposite to another L-shaped block 15. At this time, the first component to be placed is in a straight line state.

[0062] As attached Figure 5 As shown, the front-end fixing device 2 is located in front of the L-shaped limit block 17 and is fixed on the mounting plate 16, and includes a cylinder 21 located between the reference hole 41 and the image acquisition device 42. The two moving blocks of the cylinder 21 reciprocate along the second direction Y. The two moving blocks of the cylinder 21 are respectively provided with a locking block 22. In the first state, the opposite end surfaces of the two locking blocks 22 can be fitted and combined into a positioning pin, so that it can be inserted into the attached Figure 1 The first component 300 is limited in the rectangular hole 301 at the front end of the first component 300 shown; in the second state, the two locking blocks 22 are separated and respectively adhere to the inner wall of the rectangular hole of the first component, thereby applying an expansion force to the front end of the first component to achieve fixation.

[0063] Of course, in another feasible embodiment, the two locking blocks 22 may be driven by the cylinder 21 to apply a clamping force to both sides of the first component, thereby clamping and fixing the first component.

[0064] Moreover, in another feasible embodiment, the front-end fixing device 2 can also be the following structure, which includes a rotating telescopic cylinder, and a pressure block is arranged on the telescopic shaft of the rotating telescopic cylinder. The pressure block is normally located on the outside of the first component. When the front end of the first component needs to be fixed, the pressure block rotates 90° to the top of the first component, and then moves downward to apply downward pressure to the front end of the first component to achieve the limitation of the first component.

[0065] As attached Figure 3 , Attachment Figure 6 As shown, the rear end fixing device 3 is located directly below the support shaft 13, and includes a double-slider cylinder 31 located on the base plate 6, a socket 32 ​​is provided on one slider of the double-slider cylinder 31, a pressing block 33 and a latch 34 extending along the first direction X and extending to the outside of the rear end surface of the pressing block 33 are provided on the other slider, the pressing block 33 and the latch 34 are located between the two support plates 12, and the socket 32 ​​has a hole or groove (not marked in the figure) coaxial with the latch 34, and at the same time, the latch 34 is connected to the first limit fixture 1 as shown in the attached figure. Figure 2 The through hole 304 on the bending plate 303 of the first component 300 shown is coaxial and can pass through the through hole on the bending plate and be inserted into the hole or groove on the socket 32. At the same time, the end surface of the pressure block 33 opposite to the socket 32 ​​clamps and fixes the bending plate of the first component.

[0066] As attached Figure 3 , Attachment Figure 5 As shown, the reference hole 41 of the position acquisition device 4 is a square hole formed on a reference block 43, and the reference block 43 is close to one side of the L-shaped limit block 18, and its position is the same as that of the reference hole 41 on the first limit fixture. Figure 2 The reference hole 41 corresponds to the through hole 302 on the front end side wall of the first component 300 shown. Of course, in other embodiments, the position of the reference hole 41 can be adjusted according to the position of the through hole on the front end side wall of the first component; the image acquisition device 42 can be various known cameras, cameras, CCD and other devices with image acquisition functions. The image acquisition device collects the position image of the reference hole and the through hole on the first component, so as to analyze whether the position of the first component needs to be adjusted.

[0067] As attached Figure 3 , Attachment Figure 4As shown, the adjusting device 5 is located between the two supporting plates 12, and its power source 51 is preferably an electric push cylinder and fixed at the rear end surface of the vertical plate 11. Of course, the power source 51 can also be a structure composed of an oil cylinder or a motor and a lead screw. A slider 53 is connected to the telescopic rod of the electric push cylinder, and the slider 53 is slidably arranged on the guide rail 54 at the rear end surface of the vertical plate 11. The adjusting member 52 is arranged on the top of the slider 53, and the adjusting member 52 can be a dome-shaped bolt.

[0068] Furthermore, since the first component and the second component need to be assembled together during the subsequent assembly, and holes corresponding to the positions on the first component need to be drilled on the second component, in order to ensure the position accuracy of the holes on the first component and the second component, as shown in the attached figure, Figure 7 As shown, the second component and the first component are drilled simultaneously. Therefore, the high-precision drilling automatic adjustment device also includes a second limiting fixture 7, which is located above the first limiting fixture 1, and includes a limiting table 71 and at least one quick-lock chuck 72 that applies downward pressure to the second component on the limiting table 71.

[0069] Specifically, as shown in the attached Figure 8 As shown, the limiting platform 71 includes a first vertical plate 711 and a second vertical plate 712 fixed on the base plate 6 and perpendicular to each other, a top plate 713 is provided on the first vertical plate 711, and a quick-locking clamp 72 is provided at both ends of the top plate 713, and a group of cushion blocks 714 located between the two quick-locking clamps 72 are also provided on the top plate 713, and a bolt 715 and a limit pin 716 with a height difference on the top surface are provided on the cushion block 714. A floating block 717 is also provided on the outside of the plate 713, the middle pivot of the floating block 717 is connected to a bracket, and the bottom of the floating block 717 is connected to a spring (not shown in the figure); the outer end of the second vertical plate 712 is provided with a pad 718 which is lower than the top plate 713 and keeps a gap with the top plate 713, and a quick-locking chuck 72 and a pad 719 are provided on the pad 718, and a pad bolt 7110 and a limit pin 7210 are provided on the pad 719, and the pad 719 is fixed on the second limit fixture as shown in the attached figure. Figure 2 The lower short plate 401 of the second component 400 shown extends between the pressing block 33 and the socket 32 ​​of the rear end fixing device 3, and a through hole 402 coaxial with and having the same size as the through hole 304 of the first component on the first limiting fixture is formed on the lower end plate 401.

[0070] Furthermore, after drilling, the first component and the second component need to be riveted together. Therefore, in order to ensure the position accuracy of the first component after riveting, as shown in the attached figure, Figure 7As shown, a distance measuring device 8 is provided on the side of the image acquisition device. The distance measuring device 8 is preferably a laser distance meter, which measures the distance between itself and the side wall of the first component and sends it to the control device to determine whether the riveting accuracy meets the requirements.

[0071] In addition, since it is necessary to drill holes and connect both side walls of the first component and the second component during drilling and subsequent riveting, if there is only one drilling device, it is necessary to rotate the structure on the base plate 6 as a whole to the drilling device to achieve drilling and riveting operations on the other side. Therefore, the base plate 6 can rotate around its axis. Specifically, as shown in the attached figure Fig. 9 As shown, the bottom of the base plate 6 is connected to a rotating shaft 9, and the rotating shaft 9 is rotatably arranged in a supporting sleeve 30. The supporting sleeve 30 is fixed on a supporting plate 40, and the supporting plate 40 is fixed on a base (not shown in the figure) or a movable device (not shown in the figure).

[0072] And, as attached Fig. 9 As shown in the figure, in order to effectively control the rotation angle of the base plate 6, two blocking members 50 are arranged on the support plate 40, and a blocking block 60 is arranged at the bottom of the base plate 6. When the blocking block 60 contacts the blocking member 50, it is limited, and when the blocking block 60 moves from the blocking member 50 at one end to contact the blocking member 50 at the other end, the base plate 6 rotates 180°; further, a self-resetting locking pin 10 is arranged on the base plate 6, as shown in the attached figure. Fig.10 As shown, the locking pin 10 includes a fixed sleeve 1001, in which a pin 1002 is movably arranged along the hole wall thereof, both ends of the pin 1002 extend outside the fixed sleeve 1001, and the upper end thereof is connected to a pulling handle 1003, and a spring 1004 sleeved on the outer periphery of the pin 1002 is also arranged in the fixed sleeve 1001, one end of the spring abuts against a baffle plate on the outer periphery of the pin 1002, and the other end abuts against the bottom of a sealing head 1005 opened at the upper end of the fixed sleeve 1001, and the locking pin 10 is coaxial with a socket 201 on a fixed position locking block 20 and is normally embedded in the socket.

[0073] The control device can be various known control devices, such as a PLC control system, a control computer, etc. Its specific control software needs to be programmed according to needs. This is not the focus of the structure of this solution and will not be elaborated here.

[0074] This solution further discloses a high-precision automobile headlight bracket drilling machine, as shown in the attached Fig.11 As shown, it includes a drilling device 100 and the above-mentioned high-precision drilling automatic adjustment device 200.

[0075] The drilling device 100 may be any known device capable of drilling, such as an electric drill, a laser drilling device, etc., and the number of the drilling device 100 may be one or two.

[0076] In a preferred embodiment, as shown in the attached Fig.12 As shown, the drilling device 100 includes two coaxial drill bits 101, the two drill bits 101 extend along the second direction Y, and each drill bit 101 is connected to a motor 102 that drives its rotation, and the two motors 102 are respectively connected to a translation mechanism 103 that drives them to reciprocate along the extension direction of the drill bit.

[0077] Specifically, as attached Fig.13 As shown, the drilling device 100 includes two support platforms 105 with a gap, and the translation mechanism 103 is arranged on each of the support platforms 105. The translation mechanism 103 can be various devices that can produce linear movement and have an adjustable movement distance, such as an oil cylinder, an electric cylinder, a linear module, etc. Preferably, the translation mechanism 103 is an electric cylinder 1031, and a top plate 1033 is arranged on the movable block 1032 of the electric cylinder 1031. The top plate 1033 and the movable block 1032 are enclosed to form a slot, and a guide plate 1034 passes through the slot.

[0078] As attached Fig.13 , Attachment Fig.14 As shown, a support sleeve 106 is provided on the top plate 1033, and a transmission shaft 107 is rotatably provided in the support sleeve 106. Both ends of the transmission shaft 107 extend outside the two ends of the support sleeve 106, and the rear end of the transmission shaft 107 is connected to a motor 102 through a transmission mechanism 108 fixed to the rear end of the support sleeve 106, and the front end of the transmission shaft 107 is coaxially connected to a drill bit connecting seat 109, and the front end of the drill bit connecting seat 109 is coaxially provided with a drill bit 101.

[0079] In addition, a large amount of debris will be generated during the drilling process, seriously affecting the sanitary environment of the work site and the workpiece. Therefore, a dust hood 104 is provided on the periphery of each drill bit 101. Under normal circumstances, the drill bit 101 does not extend out of the dust hood 104, and an air flow channel is formed in the dust hood 104. Therefore, when drilling, the front end of the dust hood 104 fits against the surface of the workpiece, so that the waste chips generated by drilling will not leak out of the dust hood 104. At the same time, the dust hood 104 is connected to a vacuum cleaner (not shown in the figure) through a pipe (not shown in the figure), so that the waste chips can be quickly and effectively collected without causing pollution to the processing environment and the workpiece.

[0080] For details, see the attached Fig.13 , Attachment Fig.14As shown, the dust hood 104 includes a front end hood 1041, a middle hood 1042 and a rear end hood 1043 which are connected in sequence, and coaxial through holes are formed on them which are equivalent to the outer diameter of the drill bit connecting seat 109. The side of the middle hood 1042 is provided with a connecting hole connected to the through hole thereon, and the outer side surface of the middle hood 1042 is provided with a connecting head 1044 connected to the connecting hole.

[0081] In addition, the lower part of the middle cover 1042 is connected to a connecting plate 1045, and one end of two guide shafts 1046 perpendicular and parallel to the connecting plate 1045 are connected. The two guide shafts 1046 are located on both sides of the translation mechanism 103 and are inserted into a push block 1047 fixed to the bottom of the top plate 1033. The outer periphery of the guide shaft 1046 is also sleeved with a spring 1048 located between the push block 1047 and the head end of the guide shaft 1046, and the tail end of the guide shaft 1046 is also provided with a baffle 1049, and the front end of the baffle 1049 is provided with a gear lever 10410 fixed to the support platform 105.

[0082] Of course, in other embodiments, the front cover 1041, the middle cover 1042 and the rear cover 1043 can also be an integrally injection-molded entity, and the connecting hole on the dust hood 104 connected to the connecting head is an inclined hole, and the axis of the connecting hole is at an acute angle to the through hole of the dust hood 104.

[0083] During operation, as the electric cylinder 1031 drives the top plate 1033 to move toward the direction of the first component, the dust hood 104 and the drill bit 101 move synchronously in the first direction, and the dust hood 104 first contacts the side wall of the first component and is limited and cannot move forward. At this time, the electric cylinder 1031 drives the drill bit 101 to continue to move forward and extend out of the front end of the dust hood 104, thereby drilling holes in the two side walls of the first component and the second component. At the same time, the push block 1047 follows the drill bit to continue to move forward, thereby applying pressure to the spring 1048 to deform it, and the spring 1048 makes the dust hood 104 fit precisely with the two side walls of the first component. When the drilling is completed, when the electric cylinder 1031 drives the drill bit 101 to move back, the spring 1048 first keeps the dust hood 104 in a state of fitting with the side wall of the first component. As the drill bit 101 completely retreats into the interior of the dust hood 104, the spring 1048 is completely reset.

[0084] Furthermore, since the two side walls of the component are drilled at the same time during drilling, in order to ensure the dust collection effect, support is provided for the two side walls at the same time, such as the attached Fig.15As shown, the high-precision automobile headlight bracket drilling machine also includes a dust suction support box 110, the dust suction support box 10 is connected to a vacuum cleaner through a pipe, the support box 110 includes a rectangular box body, and two side panels perpendicular to the drill bit are respectively formed with through holes for the drill bit to pass through (not shown in the figure), and the dust suction support box 110 is arranged on a moving mechanism 111 that drives it to move in the first direction X and the third direction Z (axial direction), and the moving mechanism 111 is arranged on one of the support platforms 105.

[0085] As attached Fig.15 As shown, the moving mechanism 111 includes a bracket and a first cylinder 1111 arranged on the bracket, the cylinder axis of the first cylinder 1111 extends along the first direction X and is connected to a flat plate 1112, the flat plate 1112 is slidably arranged on a guide rail 1113, the cylinder axis of a second cylinder 1114 is arranged on the flat plate 1112 and extends along the first direction X and is connected to an L-shaped plate 1115, the flat plate of the L-shaped plate is slidably arranged on the guide rail 1116, the vertical plate of the L-shaped plate extends downward, and a third cylinder 1117 is arranged thereon, the cylinder axis of the third cylinder 1117 extends along the third direction Z and is connected to an adapter frame 1118, the adapter frame 118 is slidably arranged on the guide rail 1119, and the dust collection support box 110 is arranged at the front end of the adapter frame 1118.

[0086] Moreover, in one embodiment, there may be only one high-precision drilling automatic adjustment device 200. In this case, the two support tables 105 of the drilling device can be arranged on both sides of the high-precision drilling automatic adjustment device 200. At this time, since riveting is required after drilling, riveting also needs to be implemented on the high-precision drilling automatic adjustment device 200, which will reduce the overall processing beat and is not conducive to improving efficiency. Therefore, the high-precision drilling automatic adjustment device 200 is preferably two, and they are respectively arranged on a moving device (not shown in the figure) that drives them to move along the first direction X. The two high-precision drilling automatic adjustment devices 200 are alternately moved to the drilling device 100 to perform drilling operations. While the component on one high-precision drilling automatic adjustment device 200 is drilling, the other high-precision drilling automatic adjustment device 200 can perform riveting and loading and unloading operations, thereby effectively improving the assembly beat and improving the assembly efficiency.

[0087] The moving device can be any known device that can drive the high-precision drilling automatic adjustment device 200 to move in a straight line, such as a rail-mounted self-powered trolley, an AGV trolley, or a slide plate driven by a linear module or a cylinder or a motor. These are known technologies and will not be described in detail.

[0088] The motor, electric cylinder, moving device, etc. of the drilling device 100 are all connected to the control device and controlled by it. During specific control, various sensors, such as photoelectric sensors, proximity sensors, etc., can be combined to control the start and stop of each device and the switching of the working state. This is a known technology and will not be elaborated here.

[0089] The above-mentioned high-precision automobile headlight bracket drilling method at least includes the following steps:

[0090] S1, manually or through automated equipment, place the first component 300 and the second component 400 on the first limiting fixture 1 and the second limiting fixture 7 respectively. At this time, manually or through automated equipment, operate at least one of the quick-lock chucks 72 to fix the top of the second component.

[0091] S2, the control device controls the double slider cylinder 31 of the rear end fixing device 3 to start the socket 32 ​​and the pressure block 33 to move toward each other, so that the socket 32 ​​and the pressure block 33 clamp the rear end of the first component and the lower end of the second component. At the same time, the pin 34 passes through the through holes on the first component and the second component and is inserted into the socket 32.

[0092] S3, the image acquisition device 42 acquires images and sends them to the control device to determine whether adjustment is required and to determine the adjustment amount of the adjustment member. The image processing process here is a known technology and will not be described in detail.

[0093] S4, when no adjustment is required, execute S5; when adjustment is required, the control device controls the power source 41 of the adjustment device 4 to start driving the adjustment member 42 to move upward to adjust to the adjustment amount of step S3, and when the adjustment member 42 moves upward, the first member 300 is lifted, so that the rear end of the first member 300 rotates around the support shaft 13 to adjust the height of the front end. After the adjustment is in place, execute step S5;

[0094] S5, the control device controls the cylinder 21 of the front end fixing device 2 to start, so that the two locking blocks 22 move back to back and the two locking blocks 22 respectively abut against the short side hole walls of the rectangular hole on the first component 300, thereby fixing the front end of the first component;

[0095] S6, then, the control device controls the electric cylinders 1031 of the two translation mechanisms 103 of the drilling equipment to start, so that the two drill bits 101 move toward the first component, so that the two drill bits drill holes at the same position on both sides of the first component and the second component. While drilling, the control device controls the dust washing device to start and vacuum.

[0096] Further, when there are two high-precision drilling automatic adjustment devices 200, after completing the fixation of the first workpiece and the second component, the high-precision drilling automatic adjustment device 200 is moved as a whole to the drilling device 100, and then the drilling operation is performed according to step S6; after completing the drilling, the high-precision drilling automatic adjustment device 200 is moved and reset, and riveting and loading and unloading are performed manually or through automated equipment; another high-precision drilling automatic adjustment device 200 carries the first component and the second component to the drilling device 100 for drilling, and this is alternated.

[0097] Furthermore, before performing step S6, the dust support box 110 may be moved between the two side walls of the first component and the second component, and then drilling may be performed. After the drilling is completed, the dust support box 110 is reset.

[0098] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A high-precision drilling automatic adjustment device, comprising a base plate (6), characterized in that: The base plate (6) is provided with a first limiting fixture (1) having a structure for making the first component lie flat and limit its position; The front and rear end fixing devices (2, 3) have a structure for applying pressure and / or clamping force and / or expansion force to the front and rear ends of the first component on the first limiting fixture (1); A position acquisition device (4) located at the front end of the first limiting fixture (1), comprising a reference hole (41) located at a setting side of the first limiting fixture and with an axis extending along the second direction Y, and an image acquisition device (42) located at the other side of the first limiting fixture and with a lens facing the reference hole (41); An adjusting device (5) comprising a power source (51) and an adjusting member (52) driven to rise and fall by the power source and capable of passing through the first position limiting fixture (1); A control device connected to at least the position acquisition device (4) and the adjustment device (5); The front-end fixing device (2) comprises a cylinder (21) located between the reference hole (41) and the image acquisition device (42), and two moving blocks of the cylinder (21) are respectively provided with a locking block (22); the rear-end fixing device (3) comprises a double-slider cylinder (31), a socket (32) is provided on one slider of the double-slider cylinder (31), a pressing block (33) and a latch (34) extending along a first direction X and passing through the pressing block (33) are provided on the other slider, and the socket (32) has a hole or a groove corresponding to the latch (34); The device also comprises a second limiting fixture (7) located above the first limiting fixture (1), comprising a limiting platform (71) and at least one quick-locking chuck (72) for applying downward pressure to a second member on the limiting platform (71); a distance measuring device (8) is arranged on the side of the image acquisition device; the substrate (6) can rotate around its axis, and a self-resetting locking pin (10) is arranged on the substrate (6); the locking pin (10) is coaxial with a socket on a fixed locking block (20) and is normally embedded in the socket.

2. A high-precision automobile headlight bracket drilling machine, comprising a drilling device (100), characterized in that: It comprises the high-precision automatic drilling adjustment device (200) as claimed in claim 1.

3. The high-precision automobile headlight bracket drilling machine according to claim 2 is characterized in that: The drilling device (100) comprises two coaxial drill bits (101), each drill bit (101) is connected to a motor (102) for driving its own rotation, and the two motors (102) are respectively connected to a translation mechanism (103) for driving them to reciprocate along the extension direction of the drill bits.

4. The high-precision automobile headlight bracket drilling machine according to claim 3 is characterized in that: A dust cover (104) is sleeved on the outer periphery of the drill bit (101), and an air flow channel is formed in the dust cover (104).

5. The high-precision automobile headlight bracket drilling machine according to claim 3 is characterized in that: The utility model also comprises a dust suction support box which can be moved between the two drill bits, and a through hole for the drill bit to penetrate is formed on a side panel of the dust suction support box which is perpendicular to the drill bit.

6. The drilling method of the high-precision automobile headlight bracket drilling machine according to claim 2 is characterized in that: At least the following steps are included: S1, placing the first component and the second component on the first limiting fixture and the second limiting fixture respectively, and fixing the top of the second component by a quick-lock chuck; S2, the rear end fixing device is started to fix the rear end of the first component and the lower end of the second component; S3, the image acquisition device acquires an image and sends it to the control device to determine whether adjustment is required and to determine the adjustment amount of the adjustment member; S4, when no adjustment is required, execute S5; when adjustment is required, the power source of the adjusting device starts to drive the adjusting member to adjust to the adjustment amount of step S3, and then executes step S5; S5, the front end fixing device is started to fix the front end of the first component; S6, drilling holes at the same position of the first component and the second component by using a drilling device.

Images