CN111906429A

CN111906429A - Ultrasonic welding machine for LED lamp

Info

Publication number: CN111906429A
Application number: CN202010683567.9A
Authority: CN
Inventors: 钟志杰; 彭权
Original assignee: Jingzhou Hongsheng Optoelectronics Technology Co ltd
Current assignee: Jingzhou Hongsheng Optoelectronics Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-11-10

Abstract

The invention discloses an ultrasonic welding machine for an LED lamp, which comprises a case, a machine body and a workbench, wherein the machine body and the workbench are arranged on the case; the outer wall of the bearing plate is provided with a barrier strip used for abutting against the outer wall of the LED bracket, and the workbench is provided with a baffle plate which is opposite to the barrier strip and used for abutting against the inner side wall of the LED bracket; a pair of clamping rods used for clamping two ends of the LED support are connected to the workbench in a left-right sliding mode, and a driving mechanism used for driving the clamping rods to be close to or far away from each other is arranged on the workbench. The invention has the following advantages and effects: through the cooperation that sets up blend stop and baffle, realize the centre gripping of LED support both sides, realize the automation of LED support simultaneously through a pair of clamping bar fixed to the centre gripping to realize the accurate centre gripping of LED support and stabilize the centre gripping, saved manual work by a wide margin, improved ultrasonic welding machine's work efficiency simultaneously.

Description

Ultrasonic welding machine for LED lamp

Technical Field

The invention relates to the field of welding equipment, in particular to an ultrasonic welding machine for an LED lamp.

Background

Ultrasonic wave metal bonding is through high frequency vibration ripples transmission to the object surface that needs to weld, and under the pressurized condition, thereby make two metal surface friction each other, atoms pass contact surface and interpenetration and form the firm integration between the atom, traditional LED lamp is in production process, often utilizes ultrasonic bonding wire machine with LED lamp pearl welded fastening on the LED support.

Chinese patent CN205967225U discloses an ultrasonic bonding wire machine for chip, which comprises a frame, wherein a feeding mechanism, a control box and a discharging mechanism are sequentially arranged from left to right on the frame, a magazine is arranged above the feeding mechanism, a workbench is arranged at the rear end of the control box, a welding head mechanism, a binocular microscope and a paying-off mechanism are respectively arranged above the workbench, a control panel is arranged on the frame, and a display is arranged at the top of the frame.

When the ultrasonic welding machine is used for welding and fixing the LED lamp beads, the LED support needs to be positioned manually, and then the LED support is clamped and fixed manually. However, the process of manually fixing the LED support is inconvenient for many times, the working efficiency of the ultrasonic welding machine is affected, and improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an ultrasonic welding machine for an LED lamp, which has the effect of improving the working efficiency.

The technical purpose of the invention is realized by the following technical scheme: an ultrasonic welding machine for an LED lamp comprises a case, a machine body and a workbench, wherein the machine body and the workbench are arranged on the case, a bearing plate used for bearing an LED bracket is connected to the workbench in a front-back sliding mode, and a control mechanism used for driving the bearing plate to horizontally slide is arranged on the workbench; the outer wall of the bearing plate is provided with a barrier strip used for abutting against the outer wall of the LED bracket, and the workbench is provided with a baffle plate which is opposite to the barrier strip and used for abutting against the inner side wall of the LED bracket; a pair of clamping rods used for clamping two ends of the LED support are connected to the workbench in a left-right sliding mode, and a driving mechanism used for driving the clamping rods to be close to or far away from each other is arranged on the workbench.

Through adopting above-mentioned technical scheme, when using above-mentioned ultrasonic bonding machine to weld the LED lamp, place the LED support on the loading board to make the lateral wall of LED support conflict the blend stop, then utilize control mechanism control loading board towards baffle direction motion, after the inside wall conflict baffle of LED support, realize the centre gripping location of LED support both sides. Then, the driving mechanism is used for controlling the pair of clamping rods to synchronously approach each other, and at the moment, the pair of clamping rods are used for realizing automatic centering and clamping fixation of the LED bracket, namely the fixation of the LED bracket is realized. Therefore, clamping of two sides of the LED support is achieved through the cooperation of the stop bars and the baffle, and meanwhile, the LED support is automatically fixed in a centering mode through the clamping rods, so that accurate clamping and stable clamping of the LED support are achieved, labor is greatly saved, and the working efficiency of the ultrasonic welding machine is improved.

The present invention in a preferred example may be further configured to: actuating mechanism includes a pair of setting up respectively in a pair of the dovetail block of terminal surface under the one end that the clamping bar deviates from each other, the workstation is improved level and is provided with the confession the dovetail that the dovetail block slided, and is a pair of the one end that the dovetail block deviates from each other with all be provided with the spring between the both ends inner wall of dovetail, the middle part position level of dovetail is provided with the steel column, the outer wall winding of steel column has the wire, the lower extreme outer wall of machine case is provided with right the wire carries out the power of supplying power, be provided with the button switch who is used for controlling its opening and close on the power.

Through adopting above-mentioned technical scheme, when a pair of clamping bars of control was close to each other, press button switch and make the button compression to control power opens, through the cooperation of steel column this moment, forms magnetism and adsorbs a pair of forked tail piece and be close to each other at the both ends of steel column, and the forked tail piece drives clamping bar synchronous motion this moment, realizes the automatic centre gripping of LED support. When a pair of clamping bars of control was close to each other, press button switch once more and make the button pop out to control power closes, the magnetism at steel column both ends disappears this moment, and the resilience force drive a pair of forked tail piece through the spring is kept away from each other simultaneously, and the forked tail piece drives clamping bar synchronous motion this moment, realizes that the centre gripping of LED support is relieved. Therefore, the driving mechanism which is stable in structure and simple and convenient to operate is arranged, the LED support is quickly centered, locked and unlocked, meanwhile, the LED support is quickly fixed, and the working efficiency of the whole ultrasonic welding machine is improved.

The present invention in a preferred example may be further configured to: the control mechanism comprises a control rod horizontally arranged on the outer wall of the bearing plate, a driven rack is arranged on the upper end face of the control rod, a portal frame stretching over the control rod is arranged on the workbench, a rotating shaft is horizontally and rotatably connected to the portal frame, a gear meshed with the driven rack is arranged on the rotating shaft, and a control mechanism used for controlling the rotation of the rotating shaft is arranged on the case.

Through adopting above-mentioned technical scheme, when control loading board horizontal slip, utilize and control mechanism control pivot forward or reverse rotation, the pivot drives gear synchronous revolution this moment, and the gear drives driven rack and control lever synchronous motion afterwards to realize loading board horizontal movement's stable control. Therefore, the structure is simple, the control mechanism works stably, the stable control of the movement of the bearing plate is realized, and the stable clamping and fixing of the LED support are realized.

The present invention in a preferred example may be further configured to: the control mechanism comprises a control rod vertically connected to the outer wall of the case in a sliding mode, a pedal is horizontally arranged at the lower end of the control rod, a connecting rod is horizontally arranged at the upper end of the control rod, a torsion spring is arranged on the rotating shaft, two ends of the torsion spring are respectively provided with a winch distributed on two sides of the control rod, and pull ropes are wound on the winches and are fixed at two ends of the connecting rod respectively.

By adopting the technical scheme, when the control rotating shaft rotates forwards or reversely, the control rod is driven to move synchronously by stepping down or downwards the pedal. The control rod drives the connecting rod and the connecting rope to move synchronously, the pulling rope is unreeled and reeled under the matching action of the winch and the torsion spring, and meanwhile, the rotation of the rotating shaft is automatically controlled. Therefore, by arranging the structure stably and operating the concise control mechanism, the stable control of the rotation of the rotating shaft is realized, namely the stable clamping and fixing and the quick clamping and fixing of the LED bracket are realized.

The present invention in a preferred example may be further configured to: the control rod comprises a slide rail arranged on the outer wall of the bearing plate and a rod body connected with the slide rail in a sliding manner, an elastic column is arranged between the rod body and the inner wall of the slide rail, and a linkage rod fixed on a button of the button switch is arranged on the lower end face of the pedal.

By adopting the technical scheme, when the pedal is stepped to move downwards, the pedal drives the linkage rod to move synchronously, the button switch is automatically pressed, and the pedal is locked. When the pedal is pressed again to move downwards and the pedal is released, the button switch is bounced off and drives the linkage rod and the pedal to move upwards synchronously. Meanwhile, the control rod is formed by matching the sliding rail and the rod body, so that the length of the control rod can be automatically adjusted, and the control rod is matched with a button switch to be opened and closed so that the movement is poor. Therefore, the pedal is utilized to tread, the control mechanism and the driving mechanism are synchronously opened and closed, clamping is performed on two sides and two ends of the LED support, manual operation steps are further saved, accurate clamping and stable clamping of the LED support are achieved, and meanwhile the working efficiency of the ultrasonic welding machine is improved.

The present invention in a preferred example may be further configured to: one end of each clamping rod, which is close to each other, is vertically and slidably connected with a pressing rod used for pressing the upper end surfaces of the two ends of the LED support, and a locking mechanism used for fixing the pressing rods is arranged on each clamping rod.

Through adopting above-mentioned technical scheme, through setting up the depression bar with adjustable height, when centre gripping LED support, it is fixed to compress tightly the LED support automatically, realizes the stable centre gripping of LED support, and the stability of increase ultrasonic welding machine during operation adapts the LED support of different height specifications simultaneously, improves the suitability of whole ultrasonic welding machine.

The present invention in a preferred example may be further configured to: the locking mechanism comprises a cantilever arranged on the upper end face of the clamping rod, a screw rod is connected to the cantilever in a threaded mode, the lower end of the screw rod is rotatably connected with the upper end face of the pressing rod, and a hand wheel is arranged at the upper end of the screw rod.

Through adopting above-mentioned technical scheme, when the high position of adjustment depression bar, the rotating hand wheel drives the screw rod synchronous revolution, and the screw rod control depression bar is automatic to slide this moment, and the screw rod through threaded connection realizes the locking of depression bar fixed automatically simultaneously. Therefore, the structure is simple, and the locking mechanism is convenient to operate, so that the height position of the pressure rod can be quickly adjusted.

The present invention in a preferred example may be further configured to: the lower end face of one end of each pair of the pressing rods, which is close to each other, is provided with a circular arc-shaped guide surface.

Through adopting above-mentioned technical scheme, provide certain guide ability through setting up the spigot surface, avoid hitting and decrease the LED support.

In conclusion, the invention has the following beneficial effects:

1. the clamping of the two sides of the LED bracket is realized by the matching of the barrier strips and the baffle plates, and the automatic centering, clamping and fixing of the LED bracket are realized by a pair of clamping rods, so that the LED bracket is accurately clamped and stably clamped, the labor is greatly saved, and the working efficiency of the ultrasonic welding machine is improved;

2. by arranging the driving mechanism which is stable in structure and simple and convenient to operate, the LED bracket is quickly centered, locked and unlocked, and meanwhile, the LED bracket is quickly fixed, namely the working efficiency of the whole ultrasonic welding machine is improved;

3. the control mechanism with simple structure and stable work is arranged to realize the stable control of the movement of the bearing plate, namely realize the stable clamping and fixing of the LED bracket;

4. the pedal is utilized to tread, so that the control mechanism and the driving mechanism are synchronously opened and closed, namely, the two sides and two ends of the LED support are simultaneously clamped, the manual operation steps are further saved, the LED support is accurately clamped and stably clamped, and the working efficiency of the ultrasonic welding machine is improved;

5. through setting up the depression bar with adjustable height, when centre gripping LED support, compress tightly fixedly the LED support automatically, realize the stable centre gripping of LED support, increase ultrasonic welding machine during operation stability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic structural view of a drive mechanism of the embodiment;

fig. 3 is a schematic structural view of a control lever of the embodiment.

Reference numerals: 1. a chassis; 2. a body; 3. a work table; 31. a carrier plate; 32. blocking strips; 33. a baffle plate; 34. a clamping bar; 35. a pressure lever; 36. a guide surface; 4. a control mechanism; 41. a control lever; 42. a driven rack; 43. a gantry; 44. a rotating shaft; 45. a gear; 46. a slide rail; 47. a rod body; 48. an elastic column; 5. a drive mechanism; 51. a dovetail block; 52. a dovetail groove; 53. a spring; 54. a steel column; 55. a wire; 56. a power source; 57. a push button switch; 6. a locking mechanism; 61. a cantilever; 62. A screw; 63. a hand wheel; 7. an operating mechanism; 71. a control lever; 72. a pedal; 73. a connecting rod; 74. a torsion spring; 75. a winch; 76. pulling a rope; 77. a linkage rod.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

As shown in fig. 1 and 2, an ultrasonic welding machine for an LED lamp includes a housing 1, a machine body 2 and a table 3, which are disposed on the housing 1. The worktable 3 is connected with a bearing plate 31 for bearing the LED bracket in a front-back sliding manner, and the worktable 3 is provided with a control mechanism 4 for driving the bearing plate 31 to horizontally slide.

As shown in fig. 1 and 2, the outer wall of the bearing plate 31 is provided with a barrier strip 32 for abutting against the outer wall of the LED bracket, and the workbench 3 is provided with a baffle 33 opposite to the barrier strip 32 and for abutting against the inner side wall of the LED bracket.

As shown in fig. 1 and 2, a pair of clamping rods 34 for clamping two ends of the LED support are slidably connected to the worktable 3 from left to right, and a driving mechanism 5 for driving the clamping rods 34 to move close to or away from each other is disposed on the worktable 3.

As shown in fig. 1 and 2, one end of each clamping rod 34 close to each other is vertically and slidably connected with a pressing rod 35 for pressing the upper end surfaces of the two ends of the LED support, and the lower end surfaces of the ends of the pair of pressing rods 35 close to each other are provided with circular arc-shaped guide surfaces 36.

As shown in fig. 1 and 2, the clamping bar 34 is provided with a locking mechanism 6 for fixing the pressing bar 35, the locking mechanism 6 includes a cantilever 61 arranged on the upper end surface of the clamping bar 34, the cantilever 61 is in threaded connection with a screw 62, the lower end of the screw 62 is rotatably connected with the upper end surface of the pressing bar 35, and the upper end is provided with a hand wheel 63.

When the LED lamp is welded by using the ultrasonic welding machine, the LED bracket is placed on the bearing plate 31, and the outer side wall of the LED bracket abuts against the barrier strip 32. Then, the hand wheel 63 is rotated to drive the screw rod 62 to move upwards or downwards, and at the same time, the screw rod 62 drives the pressing rod 35 to move synchronously. When the height position of the lower end face of the pressing rod 35 meets the thickness requirement of the LED support, the pressing rod 35 can be automatically fixed.

And then the control mechanism 4 is used for controlling the bearing plate 31 to move towards the baffle 33 until the inner side wall of the LED bracket abuts against the baffle 33, so that the clamping and positioning of the two sides of the LED bracket are realized. Then, the driving mechanism 5 is used for controlling the pair of clamping rods 34 to synchronously approach each other, at the moment, the pair of clamping rods 34 are used for realizing automatic centering and clamping fixation of the LED support, and meanwhile, the pressing rod 35 is used for pressing the upper end face of the LED support, namely, the LED support is quickly fixed. And finally, welding the LED lamp beads.

After the welding of the LED lamp beads is finished, the driving mechanism 5 is utilized to control the pair of clamping rods 34 to be synchronously away from each other, and the clamping fixation of the two ends of the LED support is released. And then, the control mechanism 4 is used for driving the bearing plate 31 to move reversely and reset, and then the finished LED lamp can be taken down.

As shown in fig. 1 and 2, the driving mechanism 5 includes a pair of dovetail blocks 51 respectively disposed on the lower end surfaces of the ends of the pair of clamping bars 34 that are away from each other, a dovetail groove 52 for sliding the dovetail blocks 51 is horizontally disposed on the table 3, and springs 53 are disposed between the ends of the pair of dovetail blocks 51 that are away from each other and the inner walls of the two ends of the dovetail groove 52.

As shown in fig. 1 and 2, a steel column 54 is horizontally disposed in the middle of the dovetail groove 52, a wire 55 is wound around the outer wall of the steel column 54, a power supply 56 for supplying power to the wire 55 is disposed on the outer wall of the lower end of the chassis 1, and a button switch 57 for controlling the on/off of the power supply 56 is disposed on the power supply 56.

When the pair of clamping rods 34 are controlled to be close to each other, the button switch 57 is pressed to compress the button, the power supply 56 is controlled to be started, at the moment, magnetism is formed at the two ends of the steel column 54 through the matching of the steel column 54, the pair of dovetail blocks 51 are attracted to be close to each other, at the moment, the dovetail blocks 51 drive the clamping rods 34 to move synchronously, and the LED support is clamped automatically.

When the pair of clamping rods 34 are controlled to approach each other, the button switch 57 is pressed again to enable the button to pop out, the power supply 56 is controlled to be turned off, at the moment, magnetism at two ends of the steel column 54 disappears, meanwhile, the pair of dovetail blocks 51 are driven to be away from each other through resilience force of the spring 53, at the moment, the dovetail blocks 51 drive the clamping rods 34 to move synchronously, and clamping release of the LED support is achieved.

As shown in fig. 1 and 2, the control mechanism 4 includes a control rod 41 horizontally disposed on the outer wall of the carrier plate 31, and a driven rack 42 is disposed on the upper end surface of the control rod 41. The worktable 3 is provided with a portal frame 43 crossing the control rod 41, the portal frame 43 is horizontally and rotatably connected with a rotating shaft 44, the rotating shaft 44 is provided with a gear 45 engaged with the driven rack 42, and the case 1 is provided with a control mechanism 7 for controlling the rotating shaft 44 to rotate.

When the bearing plate 31 is controlled to horizontally slide, the control mechanism 7 is used for controlling the rotating shaft 44 to rotate forward or backward, at this time, the rotating shaft 44 drives the gear 45 to synchronously rotate, and then the gear 45 drives the driven rack 42 and the control rod 41 to synchronously move, so that the stable control of the horizontal movement of the bearing plate 31 is realized.

As shown in fig. 1, the control mechanism 7 includes a control rod 71 vertically slidably connected to the outer wall of the casing 1, a pedal 72 is horizontally disposed at the lower end of the control rod 71, and a connecting rod 73 is horizontally disposed at the upper end. The rotating shaft 44 is provided with a torsion spring 74, and two ends of the torsion spring are respectively provided with a winch 75 distributed on two sides of the control rod 41, a pulling rope 76 is wound on the winch 75, and a pair of pulling ropes 76 is respectively fixed on two ends of the connecting rod 73.

When the control shaft 44 rotates in the forward or reverse direction, the pedal 72 is depressed to move downward or downwards, so as to drive the control rod 71 to move synchronously. At this time, the control rod 71 drives the connecting rod 73 and the connecting rope to move synchronously, and at this time, under the matching action of the winch 75 and the torsion spring 74, the unwinding and winding of the pulling rope 76 are realized, and meanwhile, the rotation of the rotating shaft 44 is automatically controlled.

As shown in fig. 1 and 3, the control rod 41 includes a sliding rail 46 disposed on an outer wall of the bearing plate 31 and a rod 47 slidably connected to the sliding rail 46. An elastic column 48 is arranged between the rod body 47 and the inner wall of the slide rail 46, and a linkage rod 77 fixed on a button of the button switch 57 is arranged on the lower end surface of the pedal 72.

When the pedal 72 is pressed to move downwards, the pedal 72 drives the linkage rod 77 to move synchronously, and the button switch 57 is automatically pressed, and the pedal 72 is locked. When the pedal 72 is depressed again to move downward and the pedal 72 is released, the push switch 57 springs open and drives the linkage 77 and the pedal 72 to move upward synchronously. Meanwhile, the control rod 41 is formed by matching the slide rail 46 and the rod body 47, so that the length of the control rod 41 can be automatically adjusted, and the control rod is matched with the button switch 57 to be opened and closed so that the movement is poor.

Therefore, the pedal 72 is utilized to realize synchronous opening and closing of the control mechanism 4 and the driving mechanism 5, namely, clamping of two sides and two ends of the LED support is realized, manual operation steps are saved, accurate clamping and stable clamping of the LED support are realized, and meanwhile, the working efficiency of the ultrasonic welding machine is improved.

Claims

1. The utility model provides an ultrasonic welding machine for LED lamp, includes quick-witted case (1) and set up in organism (2) and workstation (3) on quick-witted case (1), its characterized in that: a bearing plate (31) used for bearing the LED support is connected to the workbench (3) in a front-back sliding mode, and a control mechanism (4) used for driving the bearing plate (31) to horizontally slide is arranged on the workbench (3);

a barrier strip (32) used for abutting against the outer wall of the LED support is arranged on the outer wall of the bearing plate (31), and a baffle (33) which is opposite to the barrier strip (32) and used for abutting against the inner side wall of the LED support is arranged on the workbench (3);

the LED support is characterized in that a pair of clamping rods (34) used for clamping two ends of the LED support are connected to the workbench (3) in a left-right sliding mode, and a driving mechanism (5) used for driving the clamping rods (34) to be close to or far away from each other is arranged on the workbench (3).

2. The ultrasonic welding machine for the LED lamp according to claim 1, characterized in that: actuating mechanism (5) including a pair of set up respectively in a pair of forked tail piece (51) of terminal surface under the one end that cramp bar (34) deviate from each other, workstation (3) are improved level and are provided with the confession dovetail piece (52) that dovetail piece (51) slided, and is a pair of one end that dovetail piece (51) deviate from each other with all be provided with spring (53) between the both ends inner wall of dovetail (52), the middle part position level of dovetail (52) is provided with steel column (54), the outer wall winding of steel column (54) has wire (55), the lower extreme outer wall of machine case (1) is provided with right wire (55) carry out the power (56) of supplying power, be provided with button switch (57) that are used for controlling its on and off on power (56).

3. The ultrasonic welding machine for the LED lamp according to claim 2, characterized in that: control mechanism (4) including the level set up in control lever (41) of loading board (31) outer wall, the up end of control lever (41) is provided with driven rack (42), be provided with on workstation (3) and span portal frame (43) of control lever (41), portal frame (43) are gone up the horizontal rotation and are connected with pivot (44), be provided with on pivot (44) with driven rack (42) engaged with gear (45) mutually, and be provided with on quick-witted case (1) and be used for control pivot (44) rotatory control mechanism (7).

4. The ultrasonic welding machine for the LED lamp according to claim 3, characterized in that: control mechanism (7) including vertical sliding connection in control lever (71) of quick-witted case (1) outer wall, the lower extreme level of control lever (71) is provided with footboard (72), and the upper end level is provided with connecting rod (73), be provided with torsional spring (74) on pivot (44), and both ends all are provided with distribute in capstan winch (75) of control lever (41) both sides, the winding has stay cord (76) on capstan winch (75), and a pair of stay cord (76) are fixed in respectively the both ends of connecting rod (73).

5. The ultrasonic welding machine for the LED lamp according to claim 4, characterized in that: the control rod (41) comprises a sliding rail (46) arranged on the outer wall of the bearing plate (31) and a rod body (47) connected with the sliding rail (46) in a sliding mode, an elastic column (48) is arranged between the rod body (47) and the inner wall of the sliding rail (46), and a linkage rod (77) fixed on a button of the button switch (57) is arranged on the lower end face of the pedal (72).

6. The ultrasonic welding machine for the LED lamp according to claim 1, characterized in that: one end of each clamping rod (34) close to each other is vertically connected with a pressing rod (35) in a sliding mode, the pressing rods are used for pressing the upper end faces of the two ends of the LED support, and a locking mechanism (6) used for fixing the pressing rods (35) is arranged on each clamping rod (34).

7. The ultrasonic welding machine for the LED lamp according to claim 6, characterized in that: the locking mechanism (6) comprises a cantilever (61) arranged on the upper end face of the clamping rod (34), a screw rod (62) is connected to the cantilever (61) in a threaded mode, the lower end of the screw rod (62) is rotatably connected with the upper end face of the pressing rod (35), and a hand wheel (63) is arranged at the upper end of the screw rod.

8. The ultrasonic welding machine for the LED lamp according to claim 7, characterized in that: the lower end faces of the ends, close to each other, of the pair of pressure levers (35) are provided with circular arc-shaped guide faces (36).