CN107813236B - Clamping device for stress detection of lamp shade of car lamp - Google Patents
Clamping device for stress detection of lamp shade of car lamp Download PDFInfo
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- CN107813236B CN107813236B CN201711049412.4A CN201711049412A CN107813236B CN 107813236 B CN107813236 B CN 107813236B CN 201711049412 A CN201711049412 A CN 201711049412A CN 107813236 B CN107813236 B CN 107813236B
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- handle
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- screw rod
- lamp
- clamping
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- 238000001514 detection method Methods 0.000 title claims description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a clamping device for detecting the stress of a lamp shade of a car lamp, which comprises a base, wherein at least two horizontal moving mechanisms are arranged on the base in a matched mode, a vertical moving mechanism is arranged on each horizontal moving mechanism, and a clamping mechanism is arranged on the vertical moving rotating mechanism in a rotating mode. The beneficial effects of the invention are as follows: the horizontal unit seat horizontally moves through the horizontal screw rod, so that the relative distance between the left clamping device and the right clamping device is adjusted. The vertical unit seat vertically moves the position through the vertical screw rod, so that the horizontal height of the chuck is adjusted. The worm wheel shaft is rotated by matching gears of the worm wheel and the worm, so that the vertical rotation angle and the horizontal rotation angle of the chuck can be conveniently adjusted, and the lampshade can be rotated to the required horizontal surface. The mode of realizing horizontal and vertical movement through the screw transmission and the mode of realizing rotation through the gear transmission are simpler, more convenient and flexible in operation process, stable and capable of bearing larger load.
Description
Technical Field
The invention relates to the technical field of clamps, in particular to a clamping device for detecting stress of a lamp shade of a car lamp.
Background
Along with the development of the injection molding process of the lamp shade, the automobile lamp is lighter in weight, more compact in structure and more novel in shape. However, the residual stress in the injection molding lamp shade can not be completely eliminated in the manufacturing process, and the larger residual stress can cause deformation and even cracking of the lamp shade of the vehicle lamp. Therefore, the residual stress experiment is needed to be carried out on the lamp shade of the car lamp so as to adjust the injection molding process to reduce the residual stress and improve the quality of injection molded parts. In order to fix lamp covers having different shapes when detecting residual stress of a lamp cover injection molded article, it is common practice to manufacture a special jig designed for a specific lamp cover. However, such a lamp shade fixture lacks versatility, cannot be adapted to a large number of lamp shade models, and increases experimental costs.
Patent 201610531366.0 discloses a clamp device for fixing a lamp shade of an automobile lamp during stress detection, which consists of a base mechanism and a clamping mechanism. The horizontal position of the clamping mechanism is adjusted through the sliding through groove on the bottom plate, and the adjusting slide block can change different heights of the clamping mechanism. The horizontal adjustment mode of the sliding through grooves is limited by the number of the through grooves, and the adjustment flexibility is not enough.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the clamping device for detecting the stress of the lamp shade of the car lamp, which has strong universality, wide application range and better engineering application prospect.
The technical scheme of the invention is as follows:
the clamping device for detecting the stress of the lamp shade of the car lamp comprises a base and is characterized in that at least two horizontal movement rotating mechanisms are arranged on the base, each horizontal movement rotating mechanism is matched with one vertical movement rotating mechanism, each horizontal movement rotating mechanism comprises a first fixing seat, a first guide rod and a first screw rod, the first guide rods and the first screw rods are arranged between the first fixing seats, a transverse unit seat is matched with the first screw rods, a first rotating shaft is arranged on the transverse unit seat, a first worm wheel is matched with the first rotating shaft, and one side of the first worm wheel is meshed with the first worm; the vertical movement rotating mechanism comprises a second fixing seat, a second screw rod and a second guide rod, wherein the second screw rod and the second guide rod are arranged on the second fixing seat, a vertical unit seat is arranged on the second screw rod and the second guide rod in a matched mode, a second rotating shaft is arranged on the vertical unit seat, a second worm wheel is arranged on the second rotating shaft in a matched mode, a second worm is arranged on one side of the second worm wheel in a meshed mode, and a clamping mechanism is arranged on the top end of the second rotating shaft in a matched mode.
A clamping device for detecting stress of a lamp shade of a car lamp, which is characterized in that one end of a first screw rod is provided with a second handle which is convenient for rotation and adjustment of the first screw rod, one end of the first screw rod is provided with a first handle which is convenient for rotation and adjustment of the first screw rod, the top end of the second screw rod is provided with a fourth handle which is convenient for rotation and adjustment of the second screw rod, and one end of the second screw rod is provided with a third handle which is used for rotation and adjustment of the second screw rod.
The clamping device for detecting the stress of the lamp shade of the car lamp is characterized in that the clamping mechanism comprises a chuck and a push rod matched with the chuck, and a fifth handle for adjusting the push rod up and down is arranged at the tail end of the push rod.
The clamping device for detecting the stress of the lamp shade of the car lamp is characterized in that a unit connecting piece is arranged on the horizontal movement rotating mechanism, and the horizontal movement rotating mechanism is connected with the vertical movement rotating mechanism through the unit connecting piece.
The clamping device for detecting the stress of the lamp shade of the car lamp is characterized in that a bolt hole used for being connected with a fixed seat is formed in the base.
The clamping device for detecting the stress of the lamp shade of the car lamp is characterized in that the unit connecting piece is provided with a through hole for connecting a second guide rod bolt, and a mounting hole and a key slot for mounting a first rotating shaft.
The clamping device for detecting the stress of the lamp shade of the car lamp is characterized in that a threaded hole for being matched with the ejector rod and a mounting hole and a key slot for mounting the second rotating shaft are formed in the clamping head.
The clamping device for detecting the stress of the lamp shade of the car lamp is characterized in that the size of the first screw is 1/4-1/3 times of the maximum size of the car lamp series to be detected, the size of the base is 1.1-1.5 times of the maximum length size of the car lamp series to be detected, and the size of the second screw is 0.5-1.0 times of the maximum length size of the car lamp series to be detected.
The beneficial effects of the invention are as follows: the horizontal unit seat horizontally moves through the first screw rod, so that the relative distance between the left clamping device and the right clamping device is adjusted. The vertical unit seat vertically moves the position through the second screw rod, so that the horizontal height of the chuck is adjusted. The worm wheel and the worm gear are meshed to realize the rotation of the worm wheel shaft, so that the vertical rotation angle and the horizontal rotation angle of the chuck can be conveniently adjusted, and the lampshade can be rotated to the required horizontal surface. The mode of realizing horizontal and vertical movement through the screw transmission and the mode of realizing rotation through the gear transmission are simpler, more convenient and flexible in operation process, stable and capable of bearing larger load.
Drawings
FIG. 1 is a schematic view of an assembled structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of a horizontal movement rotating mechanism according to the present invention;
FIG. 4 is a schematic view of a vertical movement rotation mechanism according to the present invention;
FIG. 5 is a schematic view of the structure of the unit connector according to the present invention;
FIG. 6 is a schematic view of a chuck according to the present invention;
In the figure: 1-base, 2-horizontal unit seat, 21-first handle, 22-first fixing seat, 23-second handle, 24-first screw, 25-first guide rod, 26-first worm, 27-first worm wheel, 28-first rotating shaft, 3-unit connecting piece, 31-first connecting key, 32-first nut, 4-vertical unit seat, 41-second fixing seat, 42-third handle, 43-second guide rod, 44-second screw, 45-fourth handle, 46-second worm, 47-second worm wheel, 48-second rotating shaft, 5-chuck, 51-ejector rod, 52-fifth handle, 53-second nut, 54-second connecting key.
Detailed Description
The invention is further described below with reference to the drawings.
As shown in fig. 1-6, a clamping device for stress detection of a lamp shade of a vehicle lamp comprises a horizontal movement rotating mechanism, a vertical movement rotating mechanism and a clamping structure. The horizontal movement rotating mechanism comprises a base 1, a horizontal unit seat 2, a first handle 21, a first fixed seat 22, a second handle 23, a first screw 24, a first guide rod 25, a first worm 26, a first worm wheel 27, a first rotating shaft 28, a unit connecting piece 3, a first connecting key 31 and a first nut 32. The first fixing seats 22 are fixedly connected to the base 1 through bolts, a first screw 24 and two first guide rods 25 are fixedly arranged between the first fixing seats 22, threads are arranged at two ends of each first guide rod 25, and nuts are additionally arranged to fasten after penetrating through the first fixing seats 22; the first screw 24 is fixed on the first fixing seat 22 through a bearing, and one shaft end of the first screw 24 is fixedly connected with the second handle 23 through a pin and rotates along with the rotation of the second handle 23; the transverse unit seat 2 and the first screw 24 are in threaded transmission, so that the transverse unit seat 2 can horizontally move along the first screw 24 along with the rotation of the second handle 23; the first worm 26 is fixed on the transverse unit seat 2 through a bearing, and the shaft end of the first worm 26 is fixedly connected with the first handle 21 through a pin and rotates along with the rotation of the first handle 21; the first worm wheel 27 is arranged on the first rotating shaft 28 and realizes gear engagement transmission with the first worm 26; the first rotating shaft 28 is fixed on the transverse unit seat 2 through a bearing and is connected with the first worm wheel 27 in a key way so as to realize synchronous circumferential rotation; the unit connector 3 is mounted at the shaft end of the first rotating shaft 28, is fastened by a first nut 32, and is rotated in the circumferential direction in synchronization with the first rotating shaft 28 by a first connecting key 31. The vertical movement rotating mechanism comprises a vertical unit seat 4, a second fixing seat 41, a third handle 42, a second guide rod 43, a second screw 44, a fourth handle 45, a second worm 46, a second worm wheel 47 and a second rotating shaft 48. Two second screws 44 and a second guide rod 43 are supported between the second fixing seats 41, threads are arranged at two shaft ends of the second screws 44, and nuts are additionally arranged to fasten after penetrating through the second fixing seats 41; the second guide rod 43 is fixed on the second fixing seat 41 through a bearing, and the shaft end of the second guide rod 43 is fixedly connected with the fourth handle 45 through a pin and rotates along with the rotation of the fourth handle 45; the vertical unit seat 4 and the second guide rod 43 are in threaded movement, the fourth handle 45 rotates, and the vertical unit seat 4 can move up and down along the axial direction of the second guide rod 43; the second worm 46 is fixed on the vertical unit seat 4 through a bearing, and the shaft end of the second worm 46 is fixedly connected with the third handle 42 through a pin and rotates along with the rotation of the third handle 42; the second worm wheel 47 is mounted on the second rotating shaft 48 and realizes gear engagement transmission with the second worm 46; the second rotating shaft 48 is fixed on the vertical unit seat 4 through a bearing and is connected with the second worm gear 47 in a key way so as to realize synchronous circumferential rotation; the chuck 5 is arranged at the left shaft end of the second rotating shaft 48, is additionally provided with a second nut 53 for fastening, and realizes synchronous circumferential rotation with the second rotating shaft 48 through a key 54; the clamping mechanism comprises a chuck 5, a mandril 51, a fifth handle 52, a second nut 53 and a second connecting key 54. Turning the third handle 42 effects a circumferential rotation of the collet 5 about the second rotational axis 48; the ejector rod 51 and the chuck 5 are in threaded transmission, the fifth handle 52 is fixedly connected with the ejector rod 51 through a pin, and the axial movement of the ejector rod 51 is realized by rotating the fifth handle 52; soft materials such as rubber are adhered to the lower parts of the ejector rod 51 and the clamping head 5, so that the lampshade can be effectively protected from being damaged by clamping. The horizontal movement rotating mechanism is connected with the vertical movement rotating mechanism through the unit connecting piece 3, so that the clamping head 5 can move transversely and longitudinally on the horizontal plane shown in fig. 1, and can move up and down in the vertical direction and rotate by itself, thereby being convenient for clamping and fixing lamp covers of different models. The horizontal movement rotating mechanism and the vertical movement rotating mechanism are used in a pairing mode, and the number of the used groups can be determined according to the maximum size of the car light series to be detected. The size of the bottom plate is 1.1-1.5 times, preferably 1.2 times, the maximum length of the series of the lamps to be detected.
The embodiment of the invention comprises the following steps:
First, the sizes of the base 1 and the first screw 24 are determined according to the maximum size of the lamp covers of the series of lamps to be detected. Taking a taillight lampshade of a certain series of vehicle types as an example, the maximum length of the taillight lampshade is 65mm, the width of the taillight lampshade is 34mm, and the size of the base 1 is as follows: length x width = 80mm x 40mm. The length of the first screw 24 is: 30mm.
And secondly, determining a detection surface of the lamp shade of the car lamp according to experimental requirements, and determining a proper clamping boundary of the detection surface.
And thirdly, determining the number of groups of the movable rotating mechanism and the distribution condition of the horizontal movable rotating mechanism on the base 1 according to the width of the clamping boundary of the lamp shade of the car lamp. For the taillight lampshade, three groups of moving rotating mechanisms are needed, and the adjustment of the fourth step and the fifth step is synchronous coordination of the three groups of moving rotating mechanisms.
Fourth, the second handle 23 is rotated to adjust the distance between the left and right opposite clamping mechanisms; turning the first handle 21 to adjust the rotation angle of the clamping mechanism on the horizontal plane; turning the fourth handle 45 to adjust the height of the chuck 5; the fifth handle 52 is turned so that the jack 51 grips the lamp housing.
And fifthly, rotating the third handle 42, adjusting the horizontal deflection angle of the chuck 5, and adjusting the testing surface of the lampshade to a horizontal upward position so as to detect the residual stress of the surface.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art to which the invention pertains may make various modifications or additions to the described embodiments or may be substituted in a similar manner, e.g. soft materials may be used with soft plastics etc. without departing from the spirit of the invention.
Claims (4)
1. The clamping device for detecting the stress of the lamp shade of the car lamp comprises a base (1), and is characterized in that at least two horizontal movement rotating mechanisms are arranged on the base (1), each horizontal movement rotating mechanism is provided with a vertical movement rotating mechanism in a matched mode, each horizontal movement rotating mechanism comprises a first fixing seat (22), a first guide rod (25) and a first screw rod (24), the first guide rods (25) are arranged between the first fixing seats (22), a transverse unit seat (2) is arranged on the first screw rod (24) and the first guide rod (25) in a matched mode, a first rotating shaft (28) is arranged on the transverse unit seat (2), a first worm wheel (27) is arranged on the first rotating shaft (28) in a matched mode, and a first worm (26) is arranged on one side of the first worm wheel (27) in a meshed mode; the vertical movement rotating mechanism comprises a second fixing seat (41), a second guide rod (43) and a second screw rod (44), wherein the second guide rod (43) and the second screw rod (44) are arranged on the second fixing seat (41), a vertical unit seat (4) is arranged on the second guide rod (43) and the second screw rod (44) in a matched mode, a second rotating shaft (48) is arranged on the vertical unit seat (4), a second worm wheel (47) is arranged on the second rotating shaft (48) in a matched mode, a second worm (46) is arranged on one side of the second worm wheel (47) in a meshed mode, and a clamping mechanism is arranged on the top end of the second rotating shaft (48) in a matched mode;
The clamping mechanism comprises a chuck (5) and a push rod (51) which is matched with the chuck (5), and a fifth handle (52) for adjusting the push rod (51) up and down is arranged at the tail end of the push rod;
the horizontal movement rotating mechanism is provided with a unit connecting piece (3), and is connected with the vertical movement rotating mechanism through the unit connecting piece (3);
One end of the first screw rod (24) is provided with a second handle (23) which is convenient for rotation adjustment, one end of the first screw rod (26) is provided with a first handle (21) which is convenient for rotation adjustment, the top end of the second guide rod (43) is provided with a fourth handle (45) which is convenient for rotation adjustment, and one end of the second screw rod (46) is provided with a third handle (42) which is used for rotation adjustment;
The size of the first screw rod (24) is 1/4-1/3 times of the maximum length of the car light series to be detected, the size of the base (1) is 1.1-1.5 times of the maximum length of the car light series to be detected, and the size of the second guide rod (43) is 0.5-1.0 times of the maximum length of the car light series to be detected;
The working process is as follows:
the first step, determining the sizes of a base (1) and a first screw (24) according to the maximum size of a lampshade of a car lamp series to be detected;
secondly, determining a detection surface of a lamp shade of the car lamp according to experimental requirements, and determining a proper clamping boundary of the detection surface;
thirdly, determining the number of groups of the horizontal movement rotating mechanism and the vertical movement rotating mechanism and the distribution condition of the horizontal movement rotating mechanism on the base (1) according to the width of the clamping boundary of the lamp shade of the vehicle lamp;
fourth, the second handle (23) is rotated to adjust the distance between the left and right opposite clamping mechanisms; rotating the first handle (21) to adjust the rotation angle of the clamping mechanism on the horizontal plane; rotating the fourth handle (45) to adjust the height of the chuck (5); rotating the fifth handle (52) to enable the ejector rod (51) to clamp the lampshade;
and fifthly, rotating a third handle (42), adjusting the horizontal deflection angle of the chuck (5), and adjusting the testing surface of the lampshade to a horizontal upward position so as to detect the residual stress of the surface.
2. Clamping device for stress detection of a lamp shade of a vehicle lamp according to claim 1, characterized in that the base (1) is provided with bolt holes for connection with a fixed seat (22).
3. The clamping device for detecting the stress of the lamp shade of the car lamp according to claim 1, wherein the unit connecting piece (3) is provided with a through hole for bolting a first guide rod (25) and a mounting hole and a key slot for mounting a first rotating shaft (28).
4. The clamping device for detecting the stress of the lamp shade of the car lamp according to claim 1, wherein the clamping head (5) is provided with a threaded hole for being matched with the ejector rod (51) and a mounting hole and a key slot for being mounted on the second rotating shaft (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049412.4A CN107813236B (en) | 2017-10-31 | 2017-10-31 | Clamping device for stress detection of lamp shade of car lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049412.4A CN107813236B (en) | 2017-10-31 | 2017-10-31 | Clamping device for stress detection of lamp shade of car lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107813236A CN107813236A (en) | 2018-03-20 |
| CN107813236B true CN107813236B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711049412.4A Active CN107813236B (en) | 2017-10-31 | 2017-10-31 | Clamping device for stress detection of lamp shade of car lamp |
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| CN (1) | CN107813236B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146522A (en) * | 2019-05-27 | 2019-08-20 | 中车四方车辆有限公司 | A kind of bogie frame curb girder RT failure detector and method |
| CN112936137B (en) * | 2021-02-06 | 2022-04-22 | 徐州工业职业技术学院 | Steel construction prestressing force detection device |
| CN114700910B (en) * | 2022-04-01 | 2023-12-29 | 华能(大连)热电有限责任公司 | Method for centering rotating equipment |
| CN116967962B (en) * | 2023-09-22 | 2023-12-22 | 河南氢璞创能科技有限公司 | Hydrogen fuel cell sub-stack airtight testing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206105667U (en) * | 2016-07-07 | 2017-04-19 | 浙江工业大学 | Car lampshade clamping device |
| CN106969858A (en) * | 2017-03-07 | 2017-07-21 | 浙江工业大学 | A kind of load device of car light lampshade stress mornitoring |
| CN107063538A (en) * | 2017-03-21 | 2017-08-18 | 广西大学 | The clamping device of Blind Hole Method test sample residual stress |
| CN207746930U (en) * | 2017-10-31 | 2018-08-21 | 浙江工业大学 | A kind of clamping device of car light lampshade stress mornitoring |
-
2017
- 2017-10-31 CN CN201711049412.4A patent/CN107813236B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206105667U (en) * | 2016-07-07 | 2017-04-19 | 浙江工业大学 | Car lampshade clamping device |
| CN106969858A (en) * | 2017-03-07 | 2017-07-21 | 浙江工业大学 | A kind of load device of car light lampshade stress mornitoring |
| CN107063538A (en) * | 2017-03-21 | 2017-08-18 | 广西大学 | The clamping device of Blind Hole Method test sample residual stress |
| CN207746930U (en) * | 2017-10-31 | 2018-08-21 | 浙江工业大学 | A kind of clamping device of car light lampshade stress mornitoring |
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| CN107813236A (en) | 2018-03-20 |
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