CN115334866B - Accurate flexible subsides of chip adjustable pressure is installed equipment for circuit motherboard - Google Patents

Accurate flexible subsides of chip adjustable pressure is installed equipment for circuit motherboard Download PDF

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Publication number
CN115334866B
CN115334866B CN202211071906.3A CN202211071906A CN115334866B CN 115334866 B CN115334866 B CN 115334866B CN 202211071906 A CN202211071906 A CN 202211071906A CN 115334866 B CN115334866 B CN 115334866B
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sliding
cylinder
ring
piece
rotating
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CN202211071906.3A
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Chinese (zh)
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CN115334866A (en
Inventor
孙政
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Sichuan Huaping Communication Equipment Co ltd
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Sichuan Huaping Communication Equipment Co ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
    • H05K13/0408—Incorporating a pick-up tool
    • H05K13/0409—Sucking devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
    • H05K13/0406—Drive mechanisms for pick-and-place heads, e.g. details relating to power transmission, motors or vibration damping
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/046—Surface mounting
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Die Bonding (AREA)
  • Supply And Installment Of Electrical Components (AREA)

Abstract

The application relates to the technical field of chip mounters, in particular to precise flexible mounting equipment with adjustable pressure for chips of a circuit motherboard, which comprises a mounting head system, wherein the mounting head system comprises a transverse bracket, a suction rod, a rotating piece, a sliding piece, a first disc spring, a damping adjusting mechanism and a rotary driving mechanism, the suction rod is longitudinally arranged on the transverse bracket, the rotating piece is rotationally arranged on the transverse bracket, and the axis of the rotating piece longitudinally extends; the sliding piece is coaxially arranged in the rotating piece in a sliding way, and the suction rod is coaxially and fixedly arranged in the sliding piece; the first disc spring is arranged between the rotating piece and the sliding piece; the damping adjusting mechanism is arranged on the outer circumferential surface of the rotating piece and used for adjusting the sliding damping of the sliding piece relative to the rotating piece; the rotary driving mechanism is arranged on the transverse bracket and is in synchronous transmission connection with the rotating piece, and the damping adjusting mechanism can adjust the sliding damping of the sliding piece relative to the rotating piece, so that the rotary driving mechanism has a simple and stable integral structure and can adapt to the mounting requirements of different chips and boards.

Description

Accurate flexible subsides of chip adjustable pressure is installed equipment for circuit motherboard
Technical Field
The application relates to the technical field of chip mounters, in particular to a precise flexible mounting device with adjustable pressure for a chip for a circuit motherboard.
Background
The surface mount machine is used as a pillar type device in the field of electronic surface mounting, has the advantages of high surface mounting speed, high surface mounting precision and stable and reliable surface mounting quality, thoroughly changes the characteristics of labor-intensive enterprises in the surface mounting field, greatly improves the production efficiency, liberates labor force and is an indispensable device in the modern SMT surface mounting industry.
Chip mounting machines can be classified into four types: swing arm, turret, compound, and large parallel systems. Each type of chip mounter basically consists of the following five parts: the device comprises a mounting head system, a feeding system, a PCB conveying system and a control system. The mounting head system mainly realizes the following functions: and picking up the electronic components and accurately mounting the electronic components on the PCB.
The mounting head system mounts electronic components on the PCB through the suction rod, when the mounting action is carried out, if the height correction of the suction rod is slightly wrong, the suction rod can cause the damage of the chip when contacting the bare chip with larger impact force, thereby causing trouble to equipment users, reducing production efficiency, affecting product reliability, therefore, the suction rod is required to flexibly adsorb the chip, and flexibly mount the chip on the PCB.
Chinese patent CN103596376B discloses a high-speed chip mounter, comprising a frame; two mounting frames respectively and slidably mounted at two ends of the frame; the two driving mechanisms are respectively used for driving the two mounting frames to slide along the linear guide rail; the two grabbing mechanisms are respectively arranged on the mounting frame and comprise a plurality of suction rod assemblies which are arranged side by side, the suction rod assemblies are pivoted on the mounting frame and can rotate relative to the mounting frame around the central axis, and each suction rod assembly comprises a suction rod extending along the height direction of the mounting frame, a suction nozzle arranged at the lower end part of the suction rod, a quick connector connected to the upper end part of the suction rod and a belt pulley synchronously connected to the suction rod; the transmission assembly is arranged on the mounting frame and comprises a first motor, a plurality of synchronous wheels and a belt, wherein the first motor is fixed on the mounting frame through a machine body part, the synchronous wheels are pivoted on the mounting frame and correspond to the belt pulleys one by one, and the belt is driven by the first motor and is clamped between the belt pulleys and the synchronous wheels.
This chip mounter is through setting up suction nozzle elasticity in the suction bar to realize flexible mounting's purpose, but can't adjust different mounting pressure according to different chips and PCB board, and then can't satisfy the mounting demand.
Disclosure of Invention
According to the accurate flexible mounting equipment with the adjustable pressure of the chip for the circuit main board, the damping adjusting mechanism is used for adjusting the sliding damping of the sliding piece relative to the rotating piece, so that the problem of adjusting the mounting pressure for different chips and PCB boards is solved.
In order to solve the problems in the prior art, the application adopts the following technical scheme:
the chip pressure-adjustable precise flexible mounting equipment for the circuit main board comprises a mounting head system, wherein the mounting head system comprises a transverse bracket, a suction rod, a rotating piece, a sliding piece, a first disc spring, a damping adjusting mechanism and a rotary driving mechanism, the suction rod is longitudinally arranged on the transverse bracket, the rotating piece is rotationally arranged on the transverse bracket, and the axis of the rotating piece longitudinally extends; the sliding piece is coaxially arranged in the rotating piece in a sliding way, and the suction rod is coaxially and fixedly arranged in the sliding piece; the first disc spring is arranged between the rotating piece and the sliding piece and is used for elastically connecting the rotating piece and the sliding piece; the damping adjusting mechanism is arranged on the outer circumferential surface of the rotating piece and used for adjusting the sliding damping of the sliding piece relative to the rotating piece; the rotary driving mechanism is arranged on the transverse bracket and is connected with the rotating piece in a synchronous transmission way.
Preferably, the rotating member comprises a rotating cylinder, the rotating cylinder is rotationally arranged on the transverse bracket, a placement ring coaxial with the rotating cylinder is arranged on the inner periphery of the rotating cylinder, a sliding groove extending along the radial direction of the rotating cylinder is arranged in the placement ring, the sliding groove penetrates through the rotating cylinder along the radial direction, the sliding member is coaxially and slidingly arranged in the placement ring, and the rotating cylinder is in synchronous transmission connection with the rotary driving mechanism; the damping adjusting mechanism comprises an abutting block, an adjusting ring, an internal thread adjusting ring and a second disc spring; the abutting block is arranged in the placement ring in a radial sliding manner, and a first inclined plane is arranged on the outer side of the abutting block; the adjusting ring is coaxially and slidingly arranged on the outer circumferential surface of the rotating cylinder, and a first conical surface which is in sliding fit with the first inclined surface is arranged on the inner side of the adjusting ring; the internal thread adjusting ring is coaxially screwed on the outer circumferential surface of the rotating cylinder; the second disc spring is sleeved on the rotating cylinder, and two ends of the second disc spring are abutted against opposite ends of the adjusting ring and the internal thread adjusting ring.
Preferably, the abutment block is provided with a first cambered surface coaxial with the slider along the inner side in the radial direction of the suction rod.
Preferably, the circumferential surface of the internal thread adjusting ring is uniformly distributed with flutes extending along the axial direction of the internal thread adjusting ring.
Preferably, the inner circumferential surface of the sliding groove is provided with a limit strip, and the limit strip extends along the axial direction of the rotating cylinder; the sliding part comprises a sliding cylinder, the sliding cylinder is coaxially and slidingly arranged in the arranging ring, the outer circumferential surface of the sliding cylinder is provided with a first limit groove, the first limit groove extends along the axial direction of the sliding cylinder, the first limit groove is in sliding fit with the limit bar, and the suction rod is coaxially arranged in the sliding cylinder.
Preferably, the transverse bracket is provided with a first positioning opening and a second positioning opening which are coaxial, the top end of the outer circumferential surface of the rotating cylinder is provided with a limit ring which is coaxial with the rotating cylinder, and the limit ring is rotatably arranged on the first positioning opening; the rotating piece further comprises a first external thread cylinder which is coaxially screwed on the inner end of the rotating cylinder, an abutting ring which is coaxial with the first external thread cylinder is arranged on the outer circumferential surface of the first external thread cylinder, and the abutting ring abuts against the bottom end of the second placement opening; the bottom of the outer circumferential surface of the sliding cylinder is provided with a first fixed ring which is coaxial with the sliding cylinder, the first fixed ring is positioned between the placement ring and the first external thread cylinder, and the first disc spring is arranged between the first fixed ring and the placement ring.
Preferably, the rotating member further includes a first thrust bearing and a second thrust bearing, the first thrust bearing is coaxially disposed at opposite ends of the first disposition opening and the retainer ring, and the second thrust bearing is coaxially disposed at opposite ends of the abutment ring and the second disposition opening.
Preferably, the inner circumferential surface of the sliding cylinder is provided with at least three second limit grooves extending along the axial direction of the sliding cylinder; the mounting head system further comprises a sliding bar, a second external thread cylinder and a limit nut; the sliding strip is arranged in the second limiting groove in a sliding way along the radial direction, the inner side of the sliding strip is abutted on the outer circumferential surface of the suction rod along the radial direction, and the bottom end of the sliding strip is provided with a second inclined surface facing the inner wall of the sliding cylinder; the second external thread cylinder is coaxially screwed in the sliding cylinder, and the top end of the second external thread cylinder is abutted against the second inclined plane; the limiting nut is screwed on the suction rod in a threaded mode, and the limiting nut is abutted to the top end of the sliding piece.
Preferably, the inner side of the sliding strip is provided with a second cambered surface coaxial with the suction rod, and the second cambered surface is provided with ribs at equal intervals along the axial direction of the sliding piece.
Preferably, the rotation driving mechanism comprises a stepping motor and a synchronous belt, wherein the stepping motor is fixedly arranged on the transverse bracket, and an output shaft of the stepping motor is in synchronous transmission connection with the rotating piece through the synchronous belt.
Compared with the prior art, the application has the beneficial effects that:
1. according to the application, the damping adjusting mechanism can adjust the sliding damping of the sliding part relative to the rotating part, so that the problem that the first disc spring is irrecoverable to deform due to continuous compression caused by adjusting the axial space of the first disc spring is avoided, and meanwhile, the whole structure is simple and stable, and the mounting requirement on different chips and plates can be met;
2. according to the application, the abutting block is elastically abutted on the outer circumferential surface of the sliding part through the adjusting ring, the internal thread adjusting ring and the second disc spring, and the elastic abutting force of the abutting block to the sliding part can be stably and accurately adjusted by rotating the internal thread adjusting ring relative to the rotating part, so that the sliding damping of the sliding part relative to the rotating part can be conveniently adjusted, and the attaching pressure of the suction rod can be adjusted;
3. according to the application, the sliding cylinder can stably slide in the mounting ring and cannot rotate through the limiting strips and the first limiting grooves, so that the rotation angle of the suction rod in the sliding part can be stably and accurately adjusted, and the rotation angle of the chip can be accurately adjusted;
4. according to the application, the sliding piece can be coaxially and stably fixed in the sliding piece through the sliding strip, the second external thread cylinder and the limiting nut, so that the attaching precision of the suction rod can be improved.
Drawings
Fig. 1 is a perspective view of a mounting head system of the present application;
figure 2 is a side view of the placement head system of the present application;
FIG. 3 is a cross-sectional view at section A-A of FIG. 2;
FIG. 4 is a perspective cross-sectional view at section A-A of FIG. 2;
fig. 5 is a front view of the mounting head system of the present application;
FIG. 6 is a partial enlarged view at B of FIG. 3;
FIG. 7 is an enlarged view of a portion of FIG. 3 at C;
fig. 8 is a partial perspective view of the mounting head system of the present application;
FIG. 9 is a top view of a rotating barrel and a sliding barrel of the present application;
fig. 10 is an exploded perspective view of the rotary cylinder and the slide cylinder of the present application.
The reference numerals in the figures are:
1-a transverse bracket; 1 A-A first placement port; 1 b-a second placement port; 2-a suction rod; 3-a rotating member; 3 a-rotating the cylinder; 3a 1-a setting ring; 3a 2-a sliding groove; 3a 3-limit bars; 3a 4-limit rings; 3 b-a first external thread cylinder; 3b 1-an abutment ring; 3 c-a first thrust bearing; 3 d-a second thrust bearing; 4-a slider; 4 A-A sliding cylinder; 4a 1-a first limit groove; 4a 2-a first securing ring; 4a 3-a second limit groove; 5-a first disc spring; 6-a damping adjustment mechanism; 6 A-Abutment blocks; 6a 1-a first incline; 6a 2-a first cambered surface; 6 b-adjusting ring; 6b 1-a first conical surface; 6 c-an internally threaded adjustment ring; 6c 1-flutes; 6 d-a second disc spring; 7-a slewing drive mechanism; 7 A-A stepper motor; 7 b-a synchronous belt; 8 A-A sliding bar; 8a 1-a second bevel; 8a 2-a second cambered surface; 8a 3-relief; 8 b-a second external thread cylinder; 8 c-limit nuts.
Detailed Description
The application will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the application and the specific objects and functions achieved.
As shown in fig. 1-10, the present application provides:
the accurate flexible mounting equipment comprises a mounting head system, wherein the mounting head system comprises a transverse bracket 1, a suction rod 2, a rotating piece 3, a sliding piece 4, a first disc spring 5, a damping adjusting mechanism 6 and a rotary driving mechanism 7;
the suction rod 2 is longitudinally arranged on the transverse bracket 1;
the rotating member 3 is rotatably provided on the transverse bracket 1, and an axis of the rotating member 3 extends in the longitudinal direction;
the sliding piece 4 is coaxially arranged in the rotating piece 3 in a sliding way, and the suction rod 2 is coaxially and fixedly arranged in the sliding piece 4;
a first disc spring 5 is provided between the rotary member 3 and the slider 4 for elastically connecting the rotary member 3 and the slider 4;
the damping adjusting mechanism 6 is arranged on the outer circumferential surface of the rotating member 3 and is used for adjusting the sliding damping of the sliding member 4 relative to the rotating member 3;
the rotary drive mechanism 7 is arranged on the transverse bracket 1 and is connected with the rotating member 3 in a synchronous transmission manner.
The surface mounting device also comprises a feeding system, a PCB conveying system and a control system, wherein the surface mounting head system mainly realizes the following functions: picking up the electronic components and accurately mounting the electronic components on a PCB;
when the height correction of the suction rod 2 is wrong, the suction rod 2 contacts the bare chip with larger impact force to cause the damage of the chip, thereby causing trouble to the equipment user, reducing the production efficiency and affecting the product reliability, therefore, the suction rod is required to flexibly adsorb the chip and flexibly mount the chip on the PCB;
by rotatably disposing the rotary member 3 on the lateral bracket 1, the rotary member 3 can be rotated with respect to the lateral bracket 1 by the swing drive mechanism 7, thereby rotating the slider 4 and the suction rod 2;
the sliding piece 4 is arranged in the rotating piece 3, the rotating piece 3 and the sliding piece 4 are elastically connected through the first disc spring 5, when the chip is sucked up by the suction rod 2 for mounting, the sliding piece 4 can be buffered by the first disc spring 5 relative to the rotating piece 3 due to the elastic connection between the rotating piece 3 and the sliding piece 4, so that the chip adsorbed by the suction rod 2 is prevented from contacting the PCB with larger impact force due to the height difference, and the purpose of flexible mounting is realized;
simultaneously, before mounting, the sliding damping between the rotating piece 3 and the sliding piece 4 can be adjusted aiming at different chips and PCBs, namely, by starting the damping adjusting mechanism 6, the sliding damping between the damping adjusting mechanism 6 and the rotary driving mechanism 7 is adjusted, so that the mounting pressure of the suction rod 2 is adjusted, the elasticity of the first disc spring 5 is unchanged in the process, the unrecoverable deformation of the first disc spring 5 caused by continuous compression is avoided, and the sliding stability of the rotating piece 3 and the sliding piece 4 can be improved;
as some alternative embodiments of the application, the first disc spring 5 may be replaced by a spring, and the rotating member 3 and the sliding member 4 may still be elastically connected by the spring;
compared with the spring, the first disc spring 5 has more compact axial space required by the first disc spring 5, and meanwhile, the deformation of the unit volume is larger, and the smaller deformation can bear larger load; the combination is convenient, and the load transmission is more centralized;
after the first disc spring 5 deforms to buffer the sliding part 4, the height difference of the suction rod 2 can be buffered, so that chip or PCB (printed circuit board) breakage is avoided, and simultaneously after mounting is completed, the sliding part 4 can reset relative to the rotating part 3 under the elastic action of the first disc spring 5 under the action of the elastic force of the first disc spring 5, so that next mounting is facilitated;
because some chips are in long strip shapes and have azimuth, the chips are distributed in X direction, Y direction or other directions on an XY plane, and electronic components are required to be correctly placed according to the positions and the azimuth of the chips on a PCB (printed circuit board); the rotary driving mechanism 7 is started to drive the rotating piece 3 to synchronously rotate, so that the sliding piece 4 and the suction rod 2 can be driven to rotate relative to the transverse bracket 1, and the direction of the chip is adjusted;
according to the application, the damping adjusting mechanism 6 can adjust the sliding damping of the sliding part 4 relative to the rotating part 3, so that the problem that the first disc spring 5 is deformed in an unrecoverable way due to continuous compression caused by adjusting the axial space of the first disc spring 5 is avoided, and meanwhile, the whole structure is simple and stable, and the mounting requirement on different chips and PCB boards can be met.
As shown in fig. 3 and 7, further:
the rotating member 3 comprises a rotating cylinder 3a, the rotating cylinder 3a is rotatably arranged on the transverse bracket 1, a placement ring 3a1 coaxial with the rotating cylinder 3a is arranged on the inner periphery of the rotating cylinder 3a, a sliding groove 3a2 extending along the radial direction of the placement ring 3a is arranged in the placement ring 3a1, the sliding groove 3a2 penetrates the rotating cylinder 3a along the radial direction, the sliding member 4 is coaxially and slidingly arranged in the placement ring 3a1, and the rotating cylinder 3a is in synchronous transmission connection with the slewing drive mechanism 7; the damping adjustment mechanism 6 comprises an abutting block 6a, an adjustment ring 6b, an internally threaded adjustment ring 6c and a second disc spring 6d;
the abutment block 6a is slidably provided in the setting ring 3a1 in the radial direction, and a first inclined surface 6a1 is provided on the outer side of the abutment block 6 a;
the adjusting ring 6b is coaxially and slidably arranged on the outer circumferential surface of the rotating cylinder 3a, and a first conical surface 6b1 which is in sliding fit with the first inclined surface 6a1 is arranged on the inner side of the adjusting ring 6 b;
the internal thread adjusting ring 6c is coaxially screwed on the outer circumferential surface of the rotating cylinder 3 a;
the second disc spring 6d is sleeved on the rotating cylinder 3a, and two ends of the second disc spring 6d are abutted against opposite ends of the adjusting ring 6b and the internal thread adjusting ring 6c.
Through rotationally arranging the rotary cylinder 3a on the transverse bracket 1, the rotary cylinder 3a is in synchronous transmission connection with the rotary driving mechanism 7, and when the rotary driving mechanism 7 is started, the rotary cylinder 3a can rotate on the transverse bracket 1 by a certain angle, so that the orientation of a chip adsorbed at the bottom end of the suction rod 2 is adjusted;
coaxially and slidably arranging the slider 4 in the mounting ring 3a1, the slider 4 and the rotary cylinder 3a being elastically connected by a first disc spring 5, so that the first disc spring 5 can elastically buffer the slider 4;
when the friction damping between the sliding member 4 and the mounting ring 3a1 needs to be adjusted, the internal thread adjusting ring 6c is rotated relative to the rotating cylinder 3a, and the position of the internal thread adjusting ring 6c on the rotating cylinder 3a can be adjusted by rotating the internal thread adjusting ring 6c due to the fact that the rotating member 3 is arranged on the sliding cylinder 4a in a threaded rotation manner;
the adjusting ring 6b is slidably arranged on the rotating cylinder 3a, the first inclined surface 6a1 is slidably matched with the first conical surface 6b1, when the distance between the internal thread adjusting ring 6c and the mounting ring 3a1 is adjusted, the adjusting ring 6b slides on the outer circumferential surface of the rotating cylinder 3a, so that the abutting block 6a can slide on the mounting ring 3a1 along the radial direction of the mounting ring 3a1 under the action of inclined surface abutting, the adjusting ring 6b is elastically connected with the internal thread adjusting ring 6c through the second disc spring 6d, the first inclined surface 6a1 can elastically abut against the outer circumferential surface of the sliding part 4 along the radial direction, the elastic abutting force of the first inclined surface 6a1 to the sliding part 4 can be adjusted through rotating the internal thread adjusting ring 6c relative to the rotating cylinder 3a, and the sliding damping of the sliding part 4 relative to the rotating part 3 can be adjusted, so that the unrecoverable deformation of the first disc 5 caused by continuously compressing the first disc 5 is avoided according to the attaching pressure of different chips and the PCB adjusting suction rod 2;
the second disc spring 6d is sleeved on the rotating piece 3, and the second disc spring 6d is positioned between the adjusting ring 6b and the internal thread adjusting ring 6c, so that the rigid abutting force of the abutting block 6a on the sliding piece 4 is changed into an elastic abutting force, the magnitude of the rigid abutting force cannot be accurately controlled relative to the elastic abutting force, and the sliding damping of the sliding piece 4 relative to the rotating piece 3 can be accurately controlled by the elastic abutting force;
according to the application, the abutting block 6a is elastically abutted on the outer circumferential surface of the sliding part 4 through the adjusting ring 6b, the internal thread adjusting ring 6c and the second disc spring 6d, and the magnitude of the elastic abutting force of the abutting block 6a to the sliding part 4 can be stably and accurately adjusted by rotating the internal thread adjusting ring 6c relative to the rotating part 3, so that the sliding damping of the sliding part 4 relative to the rotating part 3 can be conveniently adjusted, and the attaching pressure of the suction rod 2 can be adjusted.
As shown in fig. 7, further:
the abutment block 6a is provided with a first cambered surface 6a2 coaxial with the slider 4 along the inner side in the radial direction of the suction rod 2.
Through making the butt piece 6a be provided with along the radial inboard of suction bar 2 with the coaxial first cambered surface 6a2 of slider 4, can increase the area of contact of butt piece 6a and slider 4 to the elasticity butt force of butt piece 6a to slider 4 is controlled to more accurate, in order to improve the suitability of structure this.
As shown in fig. 7, further:
the circumferential surface of the internal thread adjusting ring 6c is uniformly provided with flutes 6c1 extending along the axial direction thereof.
Through equipartition groove 6c1 on the periphery of internal thread adjusting ring 6c to make groove 6c1 extend along internal thread adjusting ring 6 c's axis direction, so the frictional resistance of the external periphery of internal thread adjusting ring 6c is convenient for increase, the staff of being convenient for rotates internal thread adjusting ring 6c relative to rotating member 3.
As shown in fig. 9 and 10, further:
the inner circumferential surface of the sliding groove 3a2 is provided with a limit strip 3a3, and the limit strip 3a3 extends along the axial direction of the rotary cylinder 3 a; the slider 4 includes a slide cylinder 4a, the slide cylinder 4a is coaxially slidably disposed in the disposition ring 3a1, an outer circumferential surface of the slide cylinder 4a is provided with a first stopper groove 4a1, the first stopper groove 4a1 extends in an axial direction of the slide cylinder 4a, the first stopper groove 4a1 is slidably fitted with the stopper 3a3, and the suction rod 2 is coaxially disposed in the slide cylinder 4 a.
By coaxially slidably disposing the slide cylinder 4a in the rotary cylinder 3a such that the first limit groove 4a1 extending in the axial direction thereof is provided on the outer circumferential surface of the slide cylinder 4a, and the limit bar 3a3 slidably fitted with the first limit groove 4a1 is formed on the inner circumferential surface of the setting ring 3a1 such that the slide cylinder 4a cannot rotate relative to the rotary cylinder 3a, the rotary cylinder 3a can transmit torque to the slide cylinder 4a while avoiding that the slide cylinder 4a cannot accurately adjust the rotation angle of the slide member 4 due to self-rotation relative to the rotary cylinder 3 a;
according to the application, the sliding cylinder 4a can stably slide in the mounting ring 3a1 and cannot rotate through the limiting strip 3a3 and the first limiting groove 4a1, so that the rotation angle of the suction rod 2 in the sliding part 4 can be stably and accurately adjusted, and the rotation angle of the chip can be accurately adjusted.
As shown in fig. 3, further:
the transverse bracket 1 is provided with a first placement opening 1a and a second placement opening 1b which are coaxial, the top end of the outer circumferential surface of the rotary cylinder 3a is provided with a limit ring 3a4 which is coaxial with the rotary cylinder, and the limit ring 3a4 is rotatably arranged on the first placement opening 1 a; the rotating piece 3 further comprises a first external thread cylinder 3b, the first external thread cylinder 3b is coaxially screwed on the inner end of the rotating cylinder 3a, an abutting ring 3b1 coaxial with the first external thread cylinder 3b is arranged on the outer circumferential surface of the first external thread cylinder 3b, and the abutting ring 3b1 abuts on the bottom end of the second placement port 1 b; the bottom end of the outer circumferential surface of the sliding cylinder 4a is provided with a first fixed ring 4a2 coaxial therewith, the first fixed ring 4a2 is located between the setting ring 3a1 and the first externally threaded cylinder 3b, and a first disc spring 5 is provided between the first fixed ring 4a2 and the setting ring 3a 1.
Through setting up coaxial first settling port 1a and second settling port 1b on horizontal support 1 for rotating cylinder 3a can pass first settling port 1a and second settling port 1b and rotate and set up on horizontal support 1, make spacing collar 3a4 rotate on the top of first settling port 1a, and screw first external screw thread section of thick bamboo 3b and connect on rotating cylinder 3a, make butt ring 3b1 can butt on the top of second settling port 1b, thereby can install rotating member 3 rotation on horizontal support 1, simultaneously rotating cylinder 3a and first external screw thread section of thick bamboo 3b can't break away from first settling port 1a and second settling port 1b, make overall structure more stable, set up first solid fixed ring 4a2 rather than coaxial at the bottom of slider 4 outer peripheral face, make first solid fixed ring 4a2 can slide between settling ring 3a1 and first external screw thread section of thick bamboo 3b, set up first dish 5 between first solid fixed ring 4a2 and first solid fixed ring 3a1 and first external screw thread section of thick bamboo 3b, make first dish 5 need to overcome between first solid fixed ring 3a and first fixed ring 3a and first dish 3a and 3b and rotate relatively and install the first dish spring 5 between the first fixed ring 3a and 3a need to overcome the first external screw thread section of thick bamboo 3 a.
As shown in fig. 3, further:
the rotating member 3 further includes a first thrust bearing 3c and a second thrust bearing 3d, the first thrust bearing 3c being coaxially disposed at opposite ends of the first disposition opening 1a and the retainer ring 3a4, and the second thrust bearing 3d being coaxially disposed at opposite ends of the abutment ring 3b1 and the second disposition opening 1 b.
By disposing the first thrust bearing 3c between the first disposition opening 1a and the retainer ring 3a4, disposing the second thrust bearing 3d between the abutment ring 3b1 and the second disposition opening 1b enables stable rotation on the lateral bracket 1, so that the swing drive mechanism 7 adjusts the rotation angle of the rotating member 3 on the lateral bracket 1.
As shown in fig. 3 and 6, further:
the inner circumferential surface of the sliding cylinder 4a is provided with at least three second limit grooves 4a3 extending along the axial direction of the sliding cylinder, and the second limit grooves 4a3 are formed; the mounting head system further comprises a sliding bar 8a, a second external thread cylinder 8b and a limit nut 8c;
the sliding strip 8a is arranged in the second limit groove 4a3 in a sliding way along the radial direction, the inner side of the sliding strip 8a is abutted on the outer circumferential surface of the suction rod 2 along the radial direction, and the bottom end of the sliding strip 8a is provided with a second inclined surface 8a1 facing the inner wall of the sliding cylinder 4 a;
the second external thread cylinder 8b is coaxially screwed in the sliding cylinder 4a, and the top end of the second external thread cylinder 8b is abutted against the second inclined surface 8a1;
the limit nut 8c is screwed on the suction rod 2, and the limit nut 8c is abutted against the top end of the sliding piece 4.
By arranging the slide bar 8a in the second limit groove 4a3 in a sliding manner in the radial direction, the slide bar 2 is coaxially penetrated through the slide cylinder 4a, so that the inner end surface of the slide bar 8a can be abutted against the slide member 4 in the radial direction, the second external thread cylinder 8b is screwed into the slide cylinder 4a, so that the end part of the second external thread cylinder 8b can be in sliding fit with the second inclined surface 8a1, the second inclined surface 8a1 is inclined towards the inner wall of the slide member 4, the slide bar 8a is made to be close to the axis of the slide cylinder 4a on the second limit groove 4a3, and then the slide bar 8a can be abutted against the outer circumferential surface of the slide bar 2 in the radial direction, and as the second limit groove 4a3 has at least three, the slide bar 8a mounted on the second limit groove 4a3 is evenly abutted against the slide bar 2, so that the slide bar 2 is coaxial with the slide member 4, and the slide bar 2 is fixed in the slide member 4, and the limit nut 8c is arranged on the slide bar 2 for preventing the slide bar 2 from being separated from the slide member 4 in the axial direction;
the application can coaxially and stably fix the sliding piece 4 in the sliding piece 4 through the sliding strip 8a, the second external thread cylinder 8b and the limit nut 8c, thereby improving the attaching precision of the suction rod 2.
As shown in fig. 6, further:
the sliding strip 8a is provided with a second cambered surface 8a2 coaxial with the suction rod 2, and the second cambered surface 8a2 is provided with a convex line 8a3 at equal intervals along the axial direction of the sliding piece 4.
Through set up the second cambered surface 8a2 coaxial with slider 4 in the inboard of slider 8a to can increase the frictional force between second cambered surface 8a2 and the suction bar 2, and set up burr 8a3 on second cambered surface 8a2, can further increase the frictional force between second cambered surface 8a2 and the suction bar 2, avoid when the dress, suction bar 2 drops or slides along its axis direction relative slider 4.
As shown in fig. 5, further:
the rotary driving mechanism 7 comprises a stepping motor 7a and a synchronous belt 7b, wherein the stepping motor 7a is fixedly arranged on the transverse bracket 1, and an output shaft of the stepping motor 7a is synchronously connected with the rotating piece 3 through the synchronous belt 7b in a transmission manner.
Through starting step motor 7a, make its output shaft can drive through hold-in range 7b and rotate the piece 3 and rotate certain angle on horizontal support 1, and then can drive slider 4, sucker 2 and chip rotation certain angle, adjust the position of chip in proper order.
The foregoing examples merely illustrate one or more embodiments of the application, which are described in greater detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (7)

1. The accurate flexible mounting equipment with the pressure adjustable chip for the circuit main board comprises a mounting head system, wherein the mounting head system comprises a transverse bracket (1) and a suction rod (2), and the suction rod (2) is longitudinally arranged on the transverse bracket (1);
the rotating piece (3) is rotationally arranged on the transverse bracket (1), and the axis of the rotating piece (3) extends longitudinally;
the sliding piece (4) is coaxially arranged in the rotating piece (3) in a sliding way, and the suction rod (2) is coaxially and fixedly arranged in the sliding piece (4);
the first disc spring (5) is arranged between the rotating piece (3) and the sliding piece (4) and is used for elastically connecting the rotating piece (3) and the sliding piece (4);
the damping adjusting mechanism (6) is arranged on the outer circumferential surface of the rotating piece (3) and is used for adjusting the sliding damping of the sliding piece (4) relative to the rotating piece (3);
the rotary driving mechanism (7) is arranged on the transverse bracket (1) and is in synchronous transmission connection with the rotating piece (3);
the rotating piece (3) comprises a rotating cylinder (3 a), the rotating cylinder (3 a) is rotationally arranged on the transverse bracket (1), a placement ring (3 a 1) coaxial with the rotating cylinder is arranged on the inner periphery of the rotating cylinder (3 a), a sliding groove (3 a 2) extending along the radial direction of the rotating cylinder is arranged in the placement ring (3 a 1), the sliding groove (3 a 2) penetrates through the rotating cylinder (3 a) along the radial direction, the sliding piece (4) is coaxially and slidingly arranged in the placement ring (3 a 1), and the rotating cylinder (3 a) is in synchronous transmission connection with the rotary driving mechanism (7); the damping adjusting mechanism (6) comprises an abutting block (6 a), an adjusting ring (6 b), an internal thread adjusting ring (6 c) and a second disc spring (6 d);
the abutting block (6 a) is arranged in the placement ring (3 a 1) in a sliding manner along the radial direction, and a first inclined surface (6 a 1) is arranged on the outer side of the abutting block (6 a);
the adjusting ring (6 b) is coaxially and slidably arranged on the outer circumferential surface of the rotating cylinder (3 a), and a first conical surface (6 b 1) which is in sliding fit with the first inclined surface (6 a 1) is arranged on the inner side of the adjusting ring (6 b);
the internal thread adjusting ring (6 c) is coaxially screwed on the outer circumferential surface of the rotating cylinder (3 a);
the second disc spring (6 d) is sleeved on the rotating cylinder (3 a), and two ends of the second disc spring (6 d) are abutted against opposite ends of the adjusting ring (6 b) and the internal thread adjusting ring (6 c);
the inner circumferential surface of the sliding groove (3 a 2) is provided with a limit strip (3 a 3), and the limit strip (3 a 3) extends along the axial direction of the rotating cylinder (3 a); the sliding piece (4) comprises a sliding cylinder (4 a), the sliding cylinder (4 a) is coaxially and slidably arranged in the arranging ring (3 a 1), a first limit groove (4 a 1) is formed in the outer circumferential surface of the sliding cylinder (4 a), the first limit groove (4 a 1) extends along the axis direction of the sliding cylinder (4 a), the first limit groove (4 a 1) is in sliding fit with the limit strip (3 a 3), and the suction rod (2) is coaxially arranged in the sliding cylinder (4 a);
the inner circumferential surface of the sliding cylinder (4 a) is provided with second limit grooves (4 a 3) extending along the axial direction of the sliding cylinder, and at least three second limit grooves (4 a 3) are formed; the mounting head system further comprises a sliding strip (8 a), a second external thread cylinder (8 b) and a limit nut (8 c);
the sliding strip (8 a) is arranged in the second limit groove (4 a 3) in a sliding way along the radial direction, the inner side of the sliding strip (8 a) is in contact with the outer circumferential surface of the suction rod (2) along the radial direction, and the bottom end of the sliding strip (8 a) is provided with a second inclined surface (8 a 1) facing the inner wall of the sliding cylinder (4 a);
the second external thread cylinder (8 b) is coaxially screwed in the sliding cylinder (4 a), and the top end of the second external thread cylinder (8 b) is abutted against the second inclined plane (8 a 1);
the limiting nut (8 c) is screwed on the suction rod (2), and the limiting nut (8 c) is abutted to the top end of the sliding piece (4).
2. The pressure-adjustable precise flexible mounting device for chips for circuit boards according to claim 1, wherein the abutting block (6 a) is provided with a first cambered surface (6 a 2) coaxial with the slider (4) along the inner side of the suction rod (2) in the radial direction.
3. The pressure-adjustable precise flexible mounting device for chips for circuit boards according to claim 1 or 2, wherein the circumferential surface of the internal thread adjusting ring (6 c) is uniformly provided with grooves (6 c 1) extending along the axial direction thereof.
4. The accurate flexible mounting device with the adjustable pressure for the chip for the circuit board according to claim 1 is characterized in that a first mounting port (1 a) and a second mounting port (1 b) which are coaxial are arranged on a transverse bracket (1), a limit ring (3 a 4) which is coaxial with the rotating cylinder (3 a) is arranged at the top end of the outer circumferential surface of the rotating cylinder, and the limit ring (3 a 4) is rotatably arranged on the first mounting port (1 a); the rotating piece (3) further comprises a first external thread cylinder (3 b), the first external thread cylinder (3 b) is coaxially screwed on the inner end of the rotating cylinder (3 a), an abutting ring (3 b 1) coaxial with the first external thread cylinder (3 b) is arranged on the outer circumferential surface of the first external thread cylinder (3 b), and the abutting ring (3 b 1) abuts against the bottom end of the second installation opening (1 b); the bottom end of the outer circumferential surface of the sliding cylinder (4 a) is provided with a first fixed ring (4 a 2) coaxial with the sliding cylinder, the first fixed ring (4 a 2) is positioned between the placement ring (3 a 1) and the first external thread cylinder (3 b), and the first disc spring (5) is arranged between the first fixed ring (4 a 2) and the placement ring (3 a 1).
5. The pressure-adjustable precise flexible mounting device for chips of circuit boards according to claim 4, wherein the rotating member (3) further comprises a first thrust bearing (3 c) and a second thrust bearing (3 d), the first thrust bearing (3 c) is coaxially disposed at opposite ends of the first mounting opening (1 a) and the limit ring (3 a 4), and the second thrust bearing (3 d) is coaxially disposed at opposite ends of the abutment ring (3 b 1) and the second mounting opening (1 b).
6. The pressure-adjustable precise flexible mounting device for chips of circuit boards according to claim 5, wherein the inner side of the sliding strip (8 a) is provided with a second cambered surface (8 a 2) coaxial with the suction rod (2), and the second cambered surface (8 a 2) is provided with ribs (8 a 3) at equal intervals along the axial direction of the sliding piece (4).
7. The precise flexible mounting device with the pressure adjustable chip for the circuit board according to claim 1, wherein the rotary driving mechanism (7) comprises a stepping motor (7 a) and a synchronous belt (7 b), the stepping motor (7 a) is fixedly arranged on the transverse bracket (1), and an output shaft of the stepping motor (7 a) is in synchronous transmission connection with the rotating piece (3) through the synchronous belt (7 b).
CN202211071906.3A 2022-09-02 2022-09-02 Accurate flexible subsides of chip adjustable pressure is installed equipment for circuit motherboard Active CN115334866B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164698A (en) * 2000-11-28 2002-06-07 Juki Corp Electronic component mounter
CN103596376A (en) * 2013-11-01 2014-02-19 深圳市森阳流体自动化有限公司 High-speed chip mounter
CN209882272U (en) * 2019-04-09 2019-12-31 温州市汇谷科技有限公司 Mounting head of chip mounter
CN111785665A (en) * 2020-07-28 2020-10-16 先进光电器材（深圳）有限公司 Mounting head
WO2021258730A1 (en) * 2020-06-23 2021-12-30 东莞市冠佳电子设备有限公司 Inserting apparatus and inserting machine
CN216960362U (en) * 2022-03-04 2022-07-12 东莞市耀野自动化有限公司 Surface mounting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164698A (en) * 2000-11-28 2002-06-07 Juki Corp Electronic component mounter
CN103596376A (en) * 2013-11-01 2014-02-19 深圳市森阳流体自动化有限公司 High-speed chip mounter
CN209882272U (en) * 2019-04-09 2019-12-31 温州市汇谷科技有限公司 Mounting head of chip mounter
WO2021258730A1 (en) * 2020-06-23 2021-12-30 东莞市冠佳电子设备有限公司 Inserting apparatus and inserting machine
CN111785665A (en) * 2020-07-28 2020-10-16 先进光电器材（深圳）有限公司 Mounting head
CN216960362U (en) * 2022-03-04 2022-07-12 东莞市耀野自动化有限公司 Surface mounting device

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