CN110039470B - Multifunctional special fixture on assembly production line - Google Patents

Multifunctional special fixture on assembly production line Download PDF

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Publication number
CN110039470B
CN110039470B CN201910418409.8A CN201910418409A CN110039470B CN 110039470 B CN110039470 B CN 110039470B CN 201910418409 A CN201910418409 A CN 201910418409A CN 110039470 B CN110039470 B CN 110039470B
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Prior art keywords
display
outer frame
guide wheel
spring
lever
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CN110039470A (en
Inventor
伞红军
李鹏宇
吴海波
陈明方
姚国一
张凯翔
李奇
赵佳媞
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P21/00Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
    • B23P21/004Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02Assembly jigs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention discloses a multifunctional special fixture on an assembly production line, which comprises a clamping device and a power device, wherein the clamping device comprises a clamping head and a clamping head; the clamping device is used for clamping the display; and the power device is used for driving the clamping device to move so as to release the display. The invention can clamp and position the display under the condition of no power supply and signal source, thus ensuring the safety and reliability in the transmission process of the assembly line; the whole clamp can realize the release and the turnover of the display only by two motors, and has simple structure and convenient installation; the turning over of the display is realized by a rocker-slider mechanism.

Description

Multifunctional special fixture on assembly production line
Technical Field
The invention relates to a multifunctional special clamp on an assembly production line, and belongs to the technical field of mechanical devices.
Background
At present, the production and assembly of the display still have no complete automatic assembly production line, and the assembly is mainly completed manually; the demand of the current social display is getting bigger and bigger, and in order to accelerate the production and provide the production efficiency so as to meet the market demand, the traditional production assembly needs to be improved, and the automatic production assembly is realized. The special fixture for the display runs through the whole assembly process, and the design and application of the multifunctional special fixture on the display assembly production line play an important role in automatic assembly production of the display.
Disclosure of Invention
The invention provides a multifunctional special fixture on an assembly production line, which is used for clamping, releasing and turning a display on the display assembly production line in a mechanical control mode.
The technical scheme of the invention is as follows: a multifunctional special clamp on an assembly production line comprises a clamping device 1 and a power device;
the clamping device 1 is used for clamping the display 4;
and the power device is used for driving the clamping device 1 to move so as to release the display 4.
The clamping device 1 comprises an outer frame 5, a cam mechanism 6, a lever mechanism 7 and a steel wire rope 21; the power device comprises a stepping motor 18 with a lead screw, a motor mounting positioning plate 19 and a nut I20;
wherein, the horizontally mounted stepping motor 18 with a screw is fixedly connected to the motor mounting positioning plate 19, the output shaft of the stepping motor 18 with the screw is connected with the screw I20 in a threaded fit manner, and two ends of the steel wire rope 21 are fixed on a fixing column at one side of the bottom of the rotating disc 62 in the cam mechanism 6;
the movement of the stepping motor 18 with the lead screw drives a nut I20 to push a movable guide wheel 12 in the lever mechanism 7 to move on a guide groove 13 in the lever mechanism 7, so that a steel wire rope 21 is pushed to pull the cam mechanism 6 to move through the movement of the movable guide wheel 12, the lever mechanism 7 is driven to move, and the release of the display 4 is realized through the combined movement of the cam mechanism 6 and the lever mechanism 7;
the two groups of cam mechanisms 6 arranged on the two sides of the front surface of the outer frame 5 and the one group of lever mechanisms 7 arranged on the bottom of the front surface of the outer frame 5 are U-shaped, and the two groups of cam mechanisms 6 are used for realizing clamping and positioning of the display 4 in the left and right directions under the power provided by a powerless device; the lever mechanism 7 is used for realizing the clamping and positioning of the display 4 in the up-and-down direction under the power provided by the unpowered device.
The clamping device 1 further comprises an outer frame cover 3, and the outer frame cover 3 can be opened and closed by an outer frame 5.
The cam mechanism 6 comprises a torsion spring 60, an eccentric circular cam 61, a rotating disc 62, a bearing seat I63 and a cam shaft 17; the two ends of the camshaft 17 are connected with two bearing blocks I63 fixedly installed on the outer frame 5 in a shaft sleeve matching mode, one end of the camshaft 17 extends out of one bearing block I63, two eccentric circular cams 61 are installed on the camshaft 17 located between the bearing blocks I63 in an interference fit mode, a rotating disc 62 is installed on one end of the camshaft 17 extending out of the bearing blocks I63 in an interference fit mode, a torsion spring 60 is sleeved on the camshaft 17, one end of the torsion spring 60 is fixedly connected to the eccentric circular cams 61, and the other end of the torsion spring 60 is fixed on the outer frame 5; in the absence of external force, the pressing force of the torsion spring 60 keeps the eccentric circular cam 61 in a state of being always clamped in the left-right direction of the display 4.
The lever mechanism 7 comprises a vertical direction guide wheel 9, a spring 10, a horizontal direction guide wheel 11, a movable guide wheel 12, a guide groove 13, a lever 14, a sliding positioning block 15, a spring guide seat 16 and a lever support seat 22; wherein, two vertical direction guide wheels 9 which are symmetrically arranged, two spring guide seats 16 which are symmetrically arranged, two lever support seats 22 which are symmetrically arranged, two horizontal direction guide wheels 11 which are symmetrically arranged, and a guide groove 13 which is fixedly connected with the bottom of the front surface of the outer frame 5 from two ends to the middle direction, a steel wire rope 21 sequentially winds the first vertical direction guide wheel 9, the first horizontal direction guide wheel 11, a movable guide wheel 12, the second horizontal direction guide wheel 11 and the second vertical direction guide wheel 9 from one end to the other end, the movable guide wheel 12 is in sliding fit with the guide groove 13, the movable guide wheel 12 is pushed to move up and down along the guide groove 13 by the movement of a screw I20, one lever 14 is in a shape, one lever 14 is in a step shape, one end of the two levers 14 is provided with a guide groove which is respectively in fit connection with a sliding positioning block 15 at the corresponding side through a rotating shaft, the middle parts of the two levers 14 are respectively connected to the lever supporting seat 22 on the corresponding side through a rotating pair, and the other ends of the two levers 14 are provided with guide grooves which are respectively matched and connected with the movable guide wheel 12 on the corresponding side through a rotating shaft; the sliding positioning block 15 is in sliding fit with the spring guide seat 16, the spring 10 is sleeved on the spring guide seat 16, one end of the spring 10 is fixed at one end of the outer frame 5 through the spring guide seat 16 for limiting, the other end of the spring 10 is fixed with the sliding positioning block 15, and the display 4 is positioned and clamped in the vertical direction through the sliding positioning block 15 under the action of pressing force of the spring 10.
The display device also comprises a positioning pin 8 arranged at the top of the front surface of the outer frame 5, and the positioning pin 8 is used for positioning and clamping the display 4 in the vertical direction through a sliding positioning block 15 towards the positioning pin 8.
The overturning device is characterized by further comprising an overturning device 2 used for driving the clamping device 1 to overturn.
The turnover device 2 comprises a stepping motor 23, a coupler 24, a bearing seat II 25, a lead screw 26, a guide rail 27, a hinge 28, a connecting rod 29, a sliding block connecting rod 30, a sliding block connecting plate 31, a sliding block 32, a nut II 33 and a box body 34; the stepping motor 23 is connected to a lead screw 26 through a coupler 24, two ends of the lead screw 26 are fixedly supported by bearing seats II 25 with bearings fixed on a box body 34, a nut II 33 installed between the two bearing seats II 25 is connected with the lead screw 26 through thread fit, sliders 32 are installed on guide rails 27 installed on two axial sides of the lead screw 26 through sliding fit, slider connecting plates 31 are fixedly connected above the sliders 32 and the nut II 33, the slider connecting plates 31 slide along the guide rails 27 through the sliders 32 and the nut II 33, the slider connecting plates 31 are connected to the end faces of the bottom of the back of an outer frame 5 in the clamping device 1 through slider connecting rods 30 and hinges 28, two sides of a central support plate on the back of the outer frame 5 are connected to one end of a connecting rod 29 through hinges 28, and the other end of the connecting rod 29 is fixedly connected.
The invention has the beneficial effects that: the invention can clamp and position the display under the condition of no power supply and signal source, thus ensuring the safety and reliability in the transmission process of the assembly line; the whole clamp can realize the release and the turnover of the display only by two motors, and has simple structure and convenient installation; the turning over of the display is realized by a rocker-slider mechanism.
Drawings
FIG. 1 is an external structural view of the present invention;
FIG. 2 is a diagram of the flip effect of the external structure of the present invention;
FIG. 3 is a graph showing the clamping effect of the clamping device of the present invention;
FIG. 4 is a graph showing the releasing effect of the clamping device of the present invention;
FIG. 5 is a structural view of the cam mechanism of the present invention;
FIG. 6 is a first linkage structure diagram of the lever mechanism, the cam mechanism and the power device of the present invention;
FIG. 7 is a schematic view of the linkage structure of the lever mechanism, the cam mechanism and the power device of the present invention;
FIG. 8 is a partial schematic view of the lever mechanism, cam mechanism, and power plant of the present invention;
FIG. 9 is a block diagram of the turnover device of the present invention;
FIG. 10 is a diagram of the flip effect of the display of the present invention;
FIG. 11 is a reversed isometric view of the display of the present invention;
FIG. 12 is an isometric view of a guide slot of the present invention;
FIG. 13 is an isometric view of an external frame and alignment pins of the present invention;
FIG. 14 is a schematic view of the outer frame and alignment pins of the present invention;
FIG. 15 is a block diagram of the housing of the present invention;
the reference numbers in the figures are: 1-clamping device, 2-turning device, 3-frame cover, 4-display, 5-frame, 6-cam mechanism, 60-torsion spring, 61-eccentric circular cam, 62-rotating disk, 63-bearing seat I, 7-lever mechanism, 8-positioning pin, 9-vertical direction guide wheel, 10-spring, 11-horizontal direction guide wheel, 12-movable guide wheel, 13-guide groove, 14-lever, 15-sliding positioning block, 16-spring guide seat, 17-cam shaft, 18-motor with screw, 19-motor mounting positioning plate, 20-nut I, 21-steel wire rope, 22-lever support seat, 23-stepping motor, 24-coupler, 25-bearing seat II, 26-a lead screw, 27-a guide rail, 28-a hinge, 29-a connecting rod, 30-a slide block connecting rod, 31-a slide block connecting plate, 32-a slide block, 33-a nut II and 34-a box body.
Detailed Description
The invention will be further described with reference to the following figures and examples, without however restricting the scope of the invention thereto.
Example 1: as shown in fig. 1-15, a multifunctional special fixture on an assembly line comprises a clamping device 1 and a power device; the clamping device 1 is used for clamping the display 4; and the power device is used for driving the clamping device 1 to move so as to release the display 4.
Further, the clamping device 1 can be provided with an outer frame 5, a cam mechanism 6, a lever mechanism 7 and a steel wire rope 21; the power device comprises a stepping motor 18 with a lead screw, a motor mounting positioning plate 19 and a nut I20; wherein, the horizontally mounted stepping motor 18 with a screw is fixedly connected to the motor mounting positioning plate 19, the output shaft of the stepping motor 18 with the screw is connected with the screw I20 in a threaded fit manner, and two ends of the steel wire rope 21 are fixed on a fixing column at one side of the bottom of the rotating disc 62 in the cam mechanism 6; the movement of the stepping motor 18 with the lead screw drives a nut I20 to push a movable guide wheel 12 in the lever mechanism 7 to move on a guide groove 13 in the lever mechanism 7, so that a steel wire rope 21 is pushed to pull the cam mechanism 6 to move through the movement of the movable guide wheel 12, the lever mechanism 7 is driven to move, and the release of the display 4 is realized through the combined movement of the cam mechanism 6 and the lever mechanism 7; the two groups of cam mechanisms 6 arranged on the two sides of the front surface of the outer frame 5 and the one group of lever mechanisms 7 arranged on the bottom of the front surface of the outer frame 5 are U-shaped, and the two groups of cam mechanisms 6 are used for realizing clamping and positioning of the display 4 in the left and right directions under the power provided by a powerless device; the lever mechanism 7 is used for realizing the clamping and positioning of the display 4 in the up-and-down direction under the power provided by the unpowered device.
Further, the clamping device 1 may further include an outer frame cover 3, and the outer frame cover 3 can be opened and closed by the outer frame 5 (the outer frame 5 and the outer frame cover 3 are made of sheet metal parts, and form the outside of the clamping device 1).
Further, the cam mechanism 6 may be provided to include a torsion spring 60, an eccentric cam 61, a rotating disc 62, a bearing block i 63 and a cam shaft 17; the two ends of the camshaft 17 are connected with two bearing blocks I63 fixedly installed on the outer frame 5 in a shaft sleeve matching mode, one end of the camshaft 17 extends out of one bearing block I63, two eccentric circular cams 61 are installed on the camshaft 17 located between the bearing blocks I63 in an interference fit mode, a rotating disc 62 is installed on one end of the camshaft 17 extending out of the bearing blocks I63 in an interference fit mode, a torsion spring 60 is sleeved on the camshaft 17, one end of the torsion spring 60 is fixedly connected to the eccentric circular cams 61, and the other end of the torsion spring 60 is welded on the outer frame 5; in the absence of external force, the pressing force of the torsion spring 60 keeps the eccentric circular cam 61 in a state of being always clamped in the left-right direction of the display 4.
Further, the lever mechanism 7 may be provided to include a vertical direction guide wheel 9, a spring 10, a horizontal direction guide wheel 11, a movable guide wheel 12, a guide groove 13, a lever 14, a sliding positioning block 15, a spring guide seat 16, and a lever support seat 22; wherein, two vertical direction guide wheels 9 which are symmetrically arranged, two spring guide seats 16 which are symmetrically arranged, two lever support seats 22 which are symmetrically arranged, two horizontal direction guide wheels 11 which are symmetrically arranged, and a guide groove 13 which is fixedly connected with the bottom of the front surface of the outer frame 5 from two ends to the middle direction, a steel wire rope 21 sequentially winds the lower part of the first vertical direction guide wheel 9, the lower part of the first horizontal direction guide wheel 11, the upper part of a movable guide wheel 12, the lower part of the second horizontal direction guide wheel 11 and the lower part of the second vertical direction guide wheel 9 from one end to the other end, the movable guide wheel 12 is in sliding fit with the guide groove 13, the movable guide wheel 12 is pushed to move up and down along the guide groove 13 by the movement of a screw I20, one lever 14 is in a shape, one lever 14 is in a ladder shape, one end of the two levers 14 is provided with a guide groove which is respectively in fit connection, the middle parts of the two levers 14 are respectively connected to the lever supporting seat 22 on the corresponding side through a rotating pair, and the other ends of the two levers 14 are provided with guide grooves which are respectively matched and connected with the movable guide wheel 12 on the corresponding side through a rotating shaft; the sliding positioning block 15 is in sliding fit with the spring guide seat 16, the spring 10 is sleeved on the spring guide seat 16, one end of the spring 10 is fixed at one end of the outer frame 5 through the spring guide seat 16 for limiting, the other end of the spring 10 is fixed with the sliding positioning block 15, and the display 4 is positioned and clamped in the vertical direction through the sliding positioning block 15 under the action of pressing force of the spring 10.
Further, a positioning pin 8 installed at the top of the front of the outer frame 5 may be provided for positioning and clamping the display 4 in the up-down direction toward the positioning pin 8 by sliding the positioning block 15.
Further, can set up still including turning device 2 for drive the clamping device 1 that the focus is close to box 34 central authorities overturns, for fig. 2 is the illustration, and clamping device is perpendicular to box state down, and clamping device 1's focus is located near the central authorities of box 34, can ensure that whole in-process display 4 focus is located near the box central authorities always, has guaranteed the stability of display when different stations.
Further, the turnover device 2 can be arranged to include a stepping motor 23, a coupler 24, a bearing seat ii 25, a lead screw 26, a guide rail 27, a hinge 28, a connecting rod 29, a slider connecting rod 30, a slider connecting plate 31, a slider 32, a nut ii 33, and a box 34; wherein the stepping motor 23 is fixed in the space formed by the motor mounting positioning plate 19 and the inside of the box body 34 in the power device, the stepping motor 23 is connected to a lead screw 26 through a coupler 24, two ends of the lead screw 26 are fixedly supported by bearing seats II 25 with bearings fixed on a box body 34, a nut II 33 installed between the two bearing seats II 25 is connected with the lead screw 26 through thread fit, sliders 32 are installed on guide rails 27 installed on two axial sides of the lead screw 26 through sliding fit, slider connecting plates 31 are fixedly connected above the sliders 32 and the nut II 33, the slider connecting plates 31 slide along the guide rails 27 through the sliders 32 and the nut II 33, the slider connecting plates 31 are connected to the end face of the bottom of the back of the outer frame 5 in the clamping device 1 through slider connecting rods 30 and hinges 28, two sides of a central support plate of the back of the outer frame 5 are connected to one end of a connecting rod 29 through hinges 28, and the other end of the connecting rod 29 is fixedly connected to one side, far.
The working principle of the invention is as follows:
in the assembly production of the display 4, the special fixture moves along the production line, no voltage and control signal are input into the special fixture at the moment, the eccentric circular cam 61 clamps and positions the display 4 under the action of the torsion spring 60, and the sliding positioning block 15 clamps and positions the display 4 under the pressure of the spring 10 (i.e. in the state of fig. 1 and 2, the display is clamped and positioned).
When the special fixture for the display moves on the assembly line, the display 4 is always in a clamping state, when the special fixture reaches a designated station through the guide device and the display 4 clamped and positioned needs to be released (namely the effect of fig. 3 is changed into that shown in fig. 4, and the release is not carried out in the state of fig. 2), the movement of the stepping motor 18 with the screw drives the screw I20 to push the movable guide wheel 12 in the lever mechanism 7 to move upwards on the guide groove 13, and the upward movement of the movable guide wheel 12 drives the sliding positioning block 15 to move downwards through the lever 14 on the one hand, so that the sliding positioning block 15 releases the clamping of the display 4 in the vertical direction; on the other hand, the movable guide wheel 12 pushes the wire rope 21 to make it pull the rotating disc 62 to rotate, and then the cam shaft 17 drives the eccentric circular cam 61 to rotate, so that the clamping of the display 4 in the left and right direction is released.
When the side of the display needs to be processed (i.e. the state of fig. 1 is changed to the state of fig. 2), the rocker-slider mechanism formed by hinging the connecting rod 29, the slider 32, the slider connecting plate 31, the slider connecting rod 30 and the display clamping plate realizes the turning of the display, which is realized as follows (the state of fig. 1 is changed from fig. 2, and the following process is also realized): the stepping motor 23 rotates to drive the screw II 33 on the screw rod 26 and the slide block connecting plate 31 connected with the screw II to move, the outer frame 5 connected with the slide block connecting plate 31 also moves, and the turnover device 2 and the display are gradually turned over under the action of the connecting rod 29 in the rocker-slide block mechanism until the position required by processing is reached.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (7)

1. The utility model provides a multi-functional special fixture on assembly line which characterized in that: comprises a clamping device (1) and a power device;
the clamping device (1) is used for clamping the display (4);
the power device is used for driving the clamping device (1) to move so as to release the display (4);
the clamping device (1) comprises an outer frame (5), a cam mechanism (6), a lever mechanism (7) and a steel wire rope (21); the power device comprises a stepping motor (18) with a lead screw, a motor mounting positioning plate (19) and a screw I (20);
the horizontal type screw stepping motor (18) is fixedly connected to the motor mounting positioning plate (19), an output shaft of the screw stepping motor (18) is in threaded fit connection with the nut I (20), and two ends of the steel wire rope (21) are fixed to a fixing column on one side of the bottom of the rotating disc (62) in the cam mechanism (6);
the movement of a stepping motor (18) with a lead screw drives a nut I (20) to push a movable guide wheel (12) in a lever mechanism (7) to move on a guide groove (13) in the lever mechanism (7), a steel wire rope (21) is pushed to pull the movement of a cam mechanism (6) through the movement of the movable guide wheel (12), the lever mechanism (7) is driven to move, and the joint movement of the cam mechanism (6) and the lever mechanism (7) realizes the release of a display (4);
the two groups of cam mechanisms (6) arranged on the two sides of the front surface of the outer frame (5) and the one group of lever mechanisms (7) arranged on the bottom of the front surface of the outer frame (5) are U-shaped, and the two groups of cam mechanisms (6) are used for realizing clamping and positioning of the display (4) in the left and right directions under the power provided by a power-free device; the lever mechanism (7) is used for realizing the clamping and positioning of the display (4) in the up-and-down direction under the power provided by the unpowered device.
2. The multifunctional special fixture on the assembly line according to claim 1, wherein: the clamping device (1) further comprises an outer frame cover (3), and the outer frame cover (3) can be opened and closed to form an outer frame (5).
3. The multifunctional special fixture on the assembly line according to claim 1, wherein: the cam mechanism (6) comprises a torsion spring (60), an eccentric circular cam (61), a rotating disc (62), a bearing seat I (63) and a cam shaft (17); the two ends of the camshaft (17) are connected with two bearing blocks I (63) fixedly installed on the outer frame (5) in a shaft sleeve fit mode, one end of the camshaft (17) extends out of one bearing block I (63), two eccentric circular cams (61) are installed on the camshaft (17) located between the bearing blocks I (63) in an interference fit mode, a rotating disc (62) is installed on one end of the camshaft (17) extending out of the bearing block I (63) in the interference fit mode, a torsion spring (60) is sleeved on the camshaft (17), one end of the torsion spring (60) is fixedly connected to the eccentric circular cams (61), and the other end of the torsion spring (60) is fixed on the outer frame (5); under the condition of no external force, the pressing force of the torsion spring (60) enables the eccentric circular cam (61) to be always in a clamping state on the left and right directions of the display (4).
4. The multifunctional special fixture on the assembly line according to claim 1, wherein: the lever mechanism (7) comprises a vertical direction guide wheel (9), a spring (10), a horizontal direction guide wheel (11), a movable guide wheel (12), a guide groove (13), a lever (14), a sliding positioning block (15), a spring guide seat (16) and a lever support seat (22); wherein, two vertical direction guide wheels (9) which are symmetrically arranged, two spring guide seats (16) which are symmetrically arranged, two lever support seats (22) which are symmetrically arranged, two horizontal direction guide wheels (11) which are symmetrically arranged, and a guide groove (13) are fixedly connected with the front bottom of the outer frame (5) from two ends to the middle direction, a steel wire rope (21) sequentially winds the first vertical direction guide wheel (9), the first horizontal direction guide wheel (11), a movable guide wheel (12), the second horizontal direction guide wheel (11) and the second vertical direction guide wheel (9) from one end to the other end, the movable guide wheel (12) is in sliding fit with the guide groove (13), the movable guide wheel (12) is pushed to move up and down along the guide groove (13) by the movement of a screw I (20), one lever (14) is in a shape, and the other lever (14) is in a step shape, one end of each of the two levers (14) is provided with a guide groove which is respectively matched and connected with the sliding positioning block (15) on the corresponding side through a rotating shaft, the middle of each of the two levers (14) is respectively connected to the lever supporting seat (22) on the corresponding side through a rotating pair, and the other end of each of the two levers (14) is provided with a guide groove which is respectively matched and connected with the movable guide wheel (12) on the corresponding side through a rotating shaft; slide locating piece (15) and spring guide holder (16) sliding fit, spring (10) cover is on spring guide holder (16), and spring (10) one end is passed through spring guide holder (16) and is fixed the one end of frame (5) spacing, and the spring (10) other end is fixed with slide locating piece (15), and under the packing force effect of spring (10), through slide locating piece (15) to display (4) upper and lower direction carry out the positioning clamp tightly.
5. The multifunctional special fixture on the assembling line according to claim 4, wherein: the display device also comprises a positioning pin (8) arranged at the top of the front surface of the outer frame (5) and used for positioning and clamping the display (4) in the vertical direction towards the positioning pin (8) through a sliding positioning block (15).
6. The multifunctional special fixture on the assembly line according to claim 1, wherein: the overturning device is characterized by further comprising an overturning device (2) which is used for driving the clamping device (1) to overturn.
7. The multifunctional special fixture on the assembling line according to claim 6, wherein: the turnover device (2) comprises a stepping motor (23), a coupler (24), a bearing seat II (25), a lead screw (26), a guide rail (27), a hinge (28), a connecting rod (29), a sliding block connecting rod (30), a sliding block connecting plate (31), a sliding block (32), a screw nut II (33) and a box body (34); wherein the stepping motor (23) is connected on a lead screw (26) through a coupler (24), two ends of the lead screw (26) are fixedly supported by bearing seats II (25) with bearings fixed on a box body (34), a screw nut II (33) arranged between the two bearing seats II (25) is connected with the lead screw (26) through thread fit, a slide block (32) is arranged on guide rails (27) arranged along two axial sides of the lead screw (26) through sliding fit, a slide block connecting plate (31) is fixedly connected above the slide block (32) and the screw nut II (33), the slide block connecting plate (31) slides along the guide rails (27) through the slide block (32) and the screw nut II (33), the slide block connecting plate (31) is connected at the bottom end face of the back of an outer frame (5) in a clamping device (1) through a slide block connecting rod (30) and a hinge (28), two sides of a central support plate at the back of the outer frame (5) are connected at one end of, the other end of the connecting rod (29) is fixedly connected to the inside of the box body (34) through a hinge (28).
CN201910418409.8A 2019-05-20 2019-05-20 Multifunctional special fixture on assembly production line Active CN110039470B (en)

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