CN111645033A - Self-adaptive rotary head structure for automatic dimming - Google Patents
Self-adaptive rotary head structure for automatic dimming Download PDFInfo
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- CN111645033A CN111645033A CN202010436113.1A CN202010436113A CN111645033A CN 111645033 A CN111645033 A CN 111645033A CN 202010436113 A CN202010436113 A CN 202010436113A CN 111645033 A CN111645033 A CN 111645033A
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- hole
- coaxial
- rotating shaft
- type inner
- inner cavity
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- 230000003044 adaptive effect Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B33/00—Hand tools not covered by any other group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a self-adaptive rotary head structure for automatic dimming, which comprises a rotary head and a lamp body plum screw, wherein the rotary head comprises a connecting shaft rod, the connecting shaft rod is provided with a first counter bore type inner bore hole along the axial direction, the first end of a rotary shaft body coaxial with the connecting shaft rod is inserted into the first counter bore type inner bore hole, the rotary shaft body is provided with a second counter bore type inner bore hole, and the opening of the second counter bore type inner bore hole is positioned at the second end of the rotary shaft body; a core shaft coaxial with the rotating shaft body is inserted into the second counter bore type inner cavity hole; the lamp body plum blossom screw is characterized in that a rod body of the lamp body plum blossom screw at least comprises a first section and a thread section which are positioned at the tail part, the first section is inserted into a coaxial hole formed in a core shaft, a group of lock holes are formed in the wall of the coaxial hole along the radial direction, and a locking part which can be partially protruded into the coaxial hole along the radial direction is arranged in each lock hole; correspondingly, the outer vertical surface of the first section is provided with a groove body used for receiving or resisting the protruding part of the locking piece protruding into the coaxial hole.
Description
Technical Field
The invention belongs to the technical field of vehicle lamp production, and particularly relates to a self-adaptive rotary head structure for automatic dimming.
Background
Automatic light modulation is an important process of an automatic production line of a car lamp, and in the prior art, a rotating head of a light modulation mechanism is generally arranged on a rotating shaft in an interference fit mode by adopting an E5 plum blossom screwdriver head and driven by a servo motor. The specific control mechanism is that after the lamp body is placed into the positioning system, the air cylinder drives the dimming mechanism, the plum blossom screwdriver head is meshed with the screw, the servo motor rotates to adjust the light pattern to a theoretical state, and the air cylinder drives the dimming mechanism to exit. However, in the production process, after the lamp body is fixed in the positioning system, the actual position and the theoretical position of the tail end of the plum blossom screw on the lamp body often have a certain deviation, so that a certain angle exists between the axis of the screw and the axis of the screw head, and the screw head and the plum blossom screw cannot be aligned and cannot be meshed; and after the motor drives the dimming screw to rotate to finish dimming, the plum blossom screwdriver head and the dimming screw are also clamped due to overlarge friction force, and the screwdriver head cannot be withdrawn. At this point, a production line alarm is triggered, further resulting in an automatic production interruption.
Disclosure of Invention
The invention aims to solve the technical problem that in the automatic dimming process of the automatic production line of the car lamp in the prior art, the rotating head and the plum blossom-shaped dimming screw cannot be meshed in an aligned mode, or the rotating head and the plum blossom-shaped screw of the lamp body are clamped after dimming is finished, so that the lamp cannot be withdrawn smoothly; the self-adaptive rotary head structure for automatic dimming has better adjusting and mounting matching performance.
The technical problem to be solved can be implemented by the following technical scheme.
A self-adaptive rotary head structure for automatically adjusting light, which comprises a rotary head and a lamp body plum blossom screw (1) and is characterized in that,
the rotary head comprises a connecting shaft lever, the connecting shaft lever is provided with a first counter sink type inner cavity hole along the axial direction, the first end of a rotating shaft body coaxial with the connecting shaft lever is inserted into the first counter sink type inner cavity hole, the rotating shaft body is provided with a second counter sink type inner cavity hole, and the opening of the second counter sink type inner cavity hole is positioned at the second end of the rotating shaft body; a core shaft coaxial with the rotating shaft body is inserted into the second counter bore type inner cavity hole;
the lamp body plum blossom screw is characterized in that a rod body of the lamp body plum blossom screw at least comprises a first section and a thread section which are positioned at the tail part, the first section is inserted into a coaxial hole formed in the core shaft, a group of lock holes are formed in the wall of the coaxial hole along the radial direction, and a locking part which can be partially protruded into the coaxial hole along the radial direction is arranged in each lock hole; correspondingly, the outer facade of the first section is provided with a groove body used for receiving or resisting the protruding part of the locking piece protruding into the coaxial hole.
As a further improvement of the technical scheme, the locking piece is a ball, the diameter of the ball is larger than the thickness of the hole wall of the coaxial hole, and the opening of the lock hole close to one side of the coaxial hole is smaller than the diameter of the ball.
As a further improvement of the technical scheme, the end of the first end of the rotating shaft body is a ball head, and the spherical diameter of the ball head is adapted to the aperture of the first counter bore hole; and the outer diameter of the body except the ball head is smaller than the spherical diameter of the ball head.
As a further improvement of the technical scheme, a first avoidance slotted hole is formed on the hole wall of the first counter bore hole of the connecting shaft rod along the axial direction, and a limit pin penetrating through the first avoidance slotted hole is installed on the base body at the first end of the rotating shaft body.
Furthermore, the rotating shaft body is sleeved with a first spring, one end of the first spring is abutted against the step surface at the outer edge of the rotating shaft body, and the other end of the first spring is abutted against the end surface of the connecting shaft rod.
As a further improvement of the technical solution, a second avoidance slotted hole is formed on a hole wall of a second counter bore hole of the rotating shaft body along the axial direction, and a set screw passing through the second avoidance slotted hole is installed in a threaded hole on the core shaft.
Still as the further improvement of this technical scheme, be provided with one in the coaxial hole of dabber and control the first section depth of insertion's spiral adjusting part, spiral adjusting part bottom pad is lined with the second spring.
As one of the preferred embodiments of the present invention, an opening chamfer is processed at an opening end of the second counter bore of the rotating shaft body.
Also in accordance with a preferred embodiment of the present invention, the mandrel has a flanged shoulder extending outwardly relative to its body; and an opening chamfer is processed at the opening end of the coaxial hole of the mandrel.
As one of the preferable embodiments of the present invention, a set of three locking holes is uniformly formed on the wall of the coaxial hole along the circumferential direction, and the locking member is a ball.
Drawings
Fig. 1 is a schematic view of an external structure of an adaptive screw head structure for automatic dimming according to the present invention, illustrating a state before the screw head is engaged with a box screw;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic diagram of a dimming state (external configuration);
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is a schematic view of the engagement of the ball and the light adjusting screw;
FIG. 6 is a schematic view of the structure of the rotating shaft;
FIG. 7 is a schematic semi-through view of a ball mounting hole;
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Referring to the adaptive screw head structure for automatic dimming in fig. 1 to 7, the main body of the screw head structure is divided into three parts, namely a spindle 2, a rotating shaft 3 and a connecting shaft 10. Two M3 bolts 4(41, 42) pass through the avoiding slotted hole 18 to be connected with the mandrel 2, and the M3 bolts (41, 42) drive the mandrel 2 to relatively slide along the axial line in the avoiding slotted hole 18 (long groove) on the rotating shaft 3.
In the initial state, the spindle 2 is in the ejection position under the action of a spring 8 arranged at the bottom of a bore 14 formed in the spindle 3 (see fig. 1 and 2). The rotating shaft 3 is connected with the connecting shaft 10 through a pin 11, the pin 11 drives the rotating shaft 3 to relatively slide in an elongated slot 17 on the rotating shaft 3 along the axis, and in an initial state, the rotating shaft 3 is in an ejecting position under the action of a spring 9 outside the rotating shaft 3.
One end of the rotating shaft 3 is formed as a ball 30, which has a radius R (see fig. 6) equal to the inner diameter of the connecting shaft 10 (i.e., the diameter of the inner hole 13), and an outer diameter phid of a shaft body 32 of the adjacent spherical portion is smaller than the inner diameter of the connecting shaft 10 (i.e., the diameter of the inner hole 13), so that the rotating shaft 3 is allowed to be angularly deflected around the axis during dimming. In the non-dimming state, the rotating shaft 3 is kept to be overlapped with the axis of the connecting shaft 10 under the action of the spring force of the spring 9. Wherein, the spring 9 is sleeved on the middle section shaft lever (shaft body 32) of the rotating shaft 3, one end of the spring 9 is propped against the step surface 19 at the outer edge of the rotating shaft 3, and the other end is propped against the end surface of the connecting shaft 10.
As shown in fig. 7, 3 semi-communicated holes 20 are uniformly distributed on the inner wall of the mandrel 2 along the radial direction to serve as lock holes, and the balls 5(51, 52 and 53) roll relative to the mandrel 2 in the holes but cannot enter the inside of the mandrel 2 (the opening on the inner side of the hole 20 is smaller than the diameter of the ball 5). The diameter of the ball 5 is slightly larger than the wall thickness of the mandrel 2 (namely the wall thickness of the coaxial hole 16), and when the mandrel 2 is in the jacking position, the ball 5 can be meshed with the tail end 12 of the box screw 1; referring to fig. 5, the ball 5 protruding into the coaxial hole 16 just falls into the groove 121 formed on the outer surface of the tail end 12, so as to engage and stop the tail end 12 and the ball 5 (ball). The box screw 1 is further provided with a threaded section 15.
The bottom of the coaxial hole 16 of the mandrel 2 is provided with the bolt 7 of M3 x 20, the insertion depth of the plum bolt 1 can be controlled in a distributed mode by adding the spring washer 6, and the screwing depth of the bolt 7 can be adjusted when necessary. The inner hole of the end part of the mandrel 2 is provided with a larger chamfer 21 so as to facilitate the automatic alignment when the plum blossom screw is inserted. In addition, the left-hand end of the mandrel 2 is provided with an outwardly extending flange-like shoulder 22.
As shown in fig. 6, the inner bore end of the rotating shaft 3 is formed with an inclination angle β of a certain angle, and an inclination surface 31 (chamfer surface) thereof is used to satisfy that when the spindle 2 is at the ejecting position, the ball 5 has a space to move outward, and further the ball 5 is disengaged from the spindle 2.
The specific working process is as follows:
the state before the screw head is meshed with the plum blossom screw 1 is shown in figures 1 and 2, and the mandrel 2 is in an ejection state under the action of the internal spring 8. Due to the inclination angle beta (preferably 24 deg.) of the end of the rotating shaft 3, the ball 5 cannot be engaged with the box screw 1. The end (tail end 12) of the plum-blossom bolt 1 can be easily inserted into the inner hole (coaxial hole 16) of the mandrel 2. After the mandrel 2 is pushed in, the gap between the ball 5 and the inner wall of the rotating shaft 3 disappears, and the ball 5 meshes the plum blossom screw 1 to drive the plum blossom screw 1 to rotate.
After the dimming is finished, the air cylinder is withdrawn, the mandrel 2 is ejected to the states of the attached drawing 1 and the attached drawing 2 under the action of the spring force of the spring 8, the ball 5 moves outwards again, the plum blossom screw 1 can be easily withdrawn from the inner hole (the coaxial hole 16) of the mandrel 2, and the phenomenon that the plum blossom screw and the screw head are clamped can not occur.
According to the structure provided by the invention, the rotary head adopts a mode that the ball is meshed with the tail end of the plum screw; before the mechanism is in place, the ball is scattered, no occlusion exists on the screw, and the occlusion is completed when the mechanism is in place; and allows the swivel axis to be at an angle to the motor axis.
Claims (10)
1. A self-adaptive rotary head structure for automatic dimming comprises a rotary head and a lamp body plum blossom screw (1), and is characterized in that,
the rotary head comprises a connecting shaft lever (10), the connecting shaft lever (10) is provided with a first counter bore type inner cavity hole (13) along the axial direction, the first end of a rotating shaft body (3) coaxial with the connecting shaft lever (10) is inserted into the first counter bore type inner cavity hole (13), the rotating shaft body (3) is provided with a second counter bore type inner cavity hole (14), and the opening of the second counter bore type inner cavity hole (14) is positioned at the second end of the rotating shaft body (3); a mandrel (2) coaxial with the rotating shaft body (3) is inserted into the second counter bore type inner cavity hole (14);
the lamp body plum blossom screw (1) is characterized in that a rod body at the tail part at least comprises a first section (12) and a thread section (15), the first section is inserted into a coaxial hole (16) formed in the core shaft (2), a group of locking holes (20) are formed in the wall of the coaxial hole (16) along the radial direction, and a locking part (5) which can partially protrude into the coaxial hole (16) along the radial direction is arranged in each locking hole (20); correspondingly, the outer facade of the first section (12) is provided with a groove body (121) used for receiving or abutting the protruding part of the locking piece (5) protruding into the coaxial hole.
2. The adaptive knob structure for automatic dimming according to claim 1, wherein the locking member (5) is a ball having a diameter larger than the wall thickness of the coaxial hole (16), and the opening of the locking hole (20) near the coaxial hole (16) is smaller than the diameter of the ball.
3. The adaptive knob structure for automatic dimming according to claim 1, wherein the end of the first end of the rotating shaft body (3) is a ball head, and the spherical diameter of the ball head is adapted to the aperture of the first counter-bore type inner cavity hole (13); wherein, the outer diameter of the body except the ball head is smaller than the spherical diameter of the ball head in the part of the rotating shaft body (3) inserted into the first counter bore type inner cavity hole (13).
4. The adaptive knob structure for automatic dimming according to claim 3, wherein the hole wall of the first counter-bore-type inner cavity hole (13) of the connecting shaft rod (10) is provided with a first counter-bore hole (17) along the axial direction, and a limit pin (11) penetrating through the first counter-bore hole (17) is mounted on the base body of the first end of the rotating shaft body (3).
5. The adaptive knob structure for automatic dimming according to claim 3 or 4, wherein the rotating shaft body (3) is sleeved with a first spring (9), one end of the first spring (9) abuts against a step surface on the outer edge of the rotating shaft body (3), and the other end abuts against an end surface of the connecting shaft rod (10).
6. The adaptive knob structure for automatic dimming according to claim 4, wherein a second avoiding slot hole (18) is formed on the wall of the second counter-sunk type inner cavity hole (14) of the rotating shaft body (3) along the axial direction, and a set screw (4) penetrating through the second avoiding slot hole (18) is installed in a threaded hole on the mandrel (2).
7. An adaptive tap structure for automatic dimming according to claim 1, wherein a screw adjusting member (7) for controlling the insertion depth of the first section (12) is arranged in the coaxial hole (16) of the mandrel (2), and the bottom of the screw adjusting member (7) is padded with the second spring (8).
8. The adaptive knob structure for automatic dimming according to claim 1, wherein the open end of the second counter bore (14) of the spindle body (3) is machined with an open chamfer.
9. An adaptive tap structure for automatic dimming according to claim 1, wherein the spindle (2) has a flange-like shoulder extending outwardly with respect to its body; and an opening chamfer is processed at the opening end of the coaxial hole (16) of the mandrel (2).
10. The adaptive knob structure for automatically adjusting brightness according to claim 2, wherein a set of three locking holes (20) are uniformly formed on the wall of the coaxial hole (16) along the circumferential direction, and the locking member (5) is a ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436113.1A CN111645033B (en) | 2020-05-21 | 2020-05-21 | Self-adaptive rotary head structure for automatic dimming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436113.1A CN111645033B (en) | 2020-05-21 | 2020-05-21 | Self-adaptive rotary head structure for automatic dimming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111645033A true CN111645033A (en) | 2020-09-11 |
| CN111645033B CN111645033B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010436113.1A Active CN111645033B (en) | 2020-05-21 | 2020-05-21 | Self-adaptive rotary head structure for automatic dimming |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115592321A (en) * | 2022-12-13 | 2023-01-13 | 深圳市科美达自动化设备有限公司（Cn） | Supporting seat for welding motor rotor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR695201A (en) * | 1929-08-22 | 1930-12-12 | Bricard Ancienne Maison Sterli | New device for mounting the lock pins |
| GB1188890A (en) * | 1968-07-01 | 1970-04-22 | Whittaker Corp | Self-Locking Fastener. |
| FR1598752A (en) * | 1968-06-26 | 1970-07-06 | ||
| CN102519016A (en) * | 2011-12-23 | 2012-06-27 | 上海小糸车灯有限公司 | Device for adjusting relative positions of parts of vehicle light |
| CN205227213U (en) * | 2015-10-23 | 2016-05-11 | 上海小糸车灯有限公司 | A mechanism that adjusts luminance for regulation of fascinating of vehicle headlamps speculum |
| CN212601646U (en) * | 2020-05-21 | 2021-02-26 | 华域视觉科技(上海)有限公司 | Self-adaptive rotary head structure for automatic dimming |
-
2020
- 2020-05-21 CN CN202010436113.1A patent/CN111645033B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR695201A (en) * | 1929-08-22 | 1930-12-12 | Bricard Ancienne Maison Sterli | New device for mounting the lock pins |
| FR1598752A (en) * | 1968-06-26 | 1970-07-06 | ||
| GB1188890A (en) * | 1968-07-01 | 1970-04-22 | Whittaker Corp | Self-Locking Fastener. |
| CN102519016A (en) * | 2011-12-23 | 2012-06-27 | 上海小糸车灯有限公司 | Device for adjusting relative positions of parts of vehicle light |
| CN205227213U (en) * | 2015-10-23 | 2016-05-11 | 上海小糸车灯有限公司 | A mechanism that adjusts luminance for regulation of fascinating of vehicle headlamps speculum |
| CN212601646U (en) * | 2020-05-21 | 2021-02-26 | 华域视觉科技(上海)有限公司 | Self-adaptive rotary head structure for automatic dimming |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115592321A (en) * | 2022-12-13 | 2023-01-13 | 深圳市科美达自动化设备有限公司（Cn） | Supporting seat for welding motor rotor |
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| CN111645033B (en) | 2024-04-02 |
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