CN110091105B

CN110091105B - Novel clamping device for microelectronic welding

Info

Publication number: CN110091105B
Application number: CN201910432424.8A
Authority: CN
Inventors: 董智超
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2021-09-07
Anticipated expiration: 2039-05-23
Also published as: CN110091105A

Abstract

The invention relates to the field of microelectronic equipment, and discloses a novel clamping device for microelectronic welding, which comprises a base, wherein sleeves are symmetrically welded on the top surface of the base, stand columns are arranged at the top ends of the sleeves in an inserting mode, the sleeves are fixedly connected with the stand columns through first bolts at the upper parts of the sleeves, lead screws and sliding rods are sequentially arranged between the stand columns from top to bottom, limiting sleeves are sleeved in the middle parts, located between the two stand columns, of the lead screws, sliding blocks are symmetrically sleeved on the lead screws located on the two sides of the limiting sleeves, and two sliding sleeves are symmetrically sleeved on the sliding rods. Through set up a slide bar in the below suitable position of lead screw, again with the bottom of slider and the sliding sleeve fixed connection that corresponds, can the slider remove the in-process and keep a state all the time, consequently set up the centre gripping arm on the slider and can keep the state parallel with the base bottom surface all the time, when the base was placed on the horizontal workbench, the centre gripping arm was the level promptly, need not to readjust clamping device.

Description

Novel clamping device for microelectronic welding

Technical Field

The invention relates to the field of microelectronic equipment, in particular to a novel clamping device for microelectronic welding.

Background

The microelectronic welding technology is a key technology in the advanced manufacturing technology of electronic products, a clamp is needed when the microelectronic welding technology is carried out, and when a workpiece is welded by the existing clamp, a clamping arm cannot be kept horizontal, so that the surface of a component and the product is poor in contact when the component and the product are welded, and the reject ratio of the product is high after welding.

According to the product provided by the patent document CN207154957U, a first screw rod is arranged above a bracket, one end of the first screw rod is rotatably connected with a first supporting column, the other end of the first screw rod passes through a second supporting column and is in threaded connection with the second supporting column, the second supporting column can slide along the first sliding groove by rotating the first screw rod, so that the distance between the first supporting column and the second supporting column can be adjusted to facilitate the welding of workpieces, however, the second supporting column is slidably connected with the bracket through the first sliding slot, so that the second supporting column and the first sliding slot are necessarily in clearance fit, how to ensure that the second supporting column is perpendicular to the bracket and the first supporting column is parallel to the second supporting column is a difficult problem, if the second support column is not perpendicular to the support and the first support column is not parallel to the second support column, an included angle exists between the first support rod and the second support rod, and the product cannot be placed stably.

Patent document CN108927626A provides a product, which is improved in technical solution, a lead screw is disposed between the upper portions of the columns, clamping components are symmetrically disposed on the lead screw, and a clamping arm is connected with the clamping components, but in the technical solution, how the clamping arm and the clamping components are balanced is not fully described, according to the provided technical solution, when the clamping components are moved by rotating the lead screw, a screwing screw is inevitably loosened from the lead screw, at this time, the clamping components are only contacted with the lead screw through a through hole, and cannot be balanced, after the distance between the clamping arms is adjusted, the level of the clamping arm needs to be readjusted, the operation is cumbersome, and the position of the lead screw on the columns is fixed, so the height of the clamping arm cannot be adjusted.

Disclosure of Invention

In view of the above problems, the present invention provides a novel clamping device for microelectronic soldering, which solves the problem of the prior art that the clamping arm is difficult to maintain horizontal.

The invention adopts the following technical scheme for realizing the technical purpose:

the utility model provides a novel clamping is used in microelectronic welding device, the on-line screen storage device comprises a base, the top surface symmetrical welding of base has the sleeve, telescopic top all alternates and is provided with the stand, the sleeve all is through first bolt and stand fixed connection on sleeve upper portion, from the top down has set gradually lead screw and slide bar between the stand, the middle part cover that the lead screw is located between two stands is equipped with the stop collar, is located symmetrical cover is equipped with the slider on the lead screw of stop collar both sides, symmetrical cover is equipped with two sliding sleeves on the slide bar, just sliding sleeve and the slider welding that corresponds, be provided with the centre gripping arm in the one side that slider and lead screw are parallel.

One end of the lead screw penetrates through one of the stand columns and is fixedly connected with the hand wheel on one side of the stand column, a second bolt is arranged at the top end of the stand column close to the hand wheel, and the lead screw is fixedly connected with the stand column through the second bolt.

Preferably, the clamping arm is of a U-shaped structure, and the inner wall of the clamping arm is parallel to the bottom surface of the base.

Preferably, a silica gel pad is arranged on the inner wall of the U-shaped structure of the clamping arm.

Preferably, the upper surface and the lower surface of the clamping arm are both provided with reinforcing ribs, and the clamping arm is fixedly connected with the sliding block through the reinforcing ribs.

Preferably, the screw threads on the screw rods positioned on the two sides of the limiting sleeve are opposite in screwing direction.

Preferably, the bottom of the base is provided with a plurality of adjusting foot pads.

The invention has the following beneficial effects:

1. this novel clamping device for microelectronic welding sets up a slide bar through the below suitable position at the lead screw, again with the bottom of slider and the sliding sleeve fixed connection that corresponds, can the slider remove the in-process and keep a state all the time, consequently set up the centre gripping arm on the slider can keep the state parallel with the base bottom surface all the time, when the base was placed on the horizontal table, the centre gripping arm was the level promptly, need not to adjust clamping device again.

2. This novel clamping device for microelectronic welding revolves to establishing to on the opposite through the screw thread that will be located the lead screw of stop collar both sides, at lead screw pivoted in-process, two sliders can only be done relatively or the motion of leaving mutually, and the interval adjustment between the centre gripping arm is accomplished through the slider of two common removals, and the speed of adjustment is faster.

Drawings

FIG. 1 is a side view of the present invention;

FIG. 2 is a side view of the base of the present invention;

FIG. 3 is a side view of the slider of the present invention;

FIG. 4 is one of the side views of other configurations of the clamp arm;

FIG. 5 is a second side view of another alternative configuration of the clamp arm;

FIG. 6 is a schematic view of another embodiment of the clamp arm;

FIG. 7 is a side view of another connection form of the lead screw to the hand wheel;

fig. 8 is a third side view of another configuration of the gripper arm.

In the figure: 1. a base; 2. a sleeve; 3. a column; 4. a first bolt; 5. a lead screw; 6. a slide bar; 7. a limiting sleeve; 8. a slider; 9. a sliding sleeve; 10. a clamp arm; 11. a hand wheel; 12. a second bolt; 13. reinforcing ribs; 14. adjusting the foot pad; 15. a housing; 16. an opening; 17. a rotating wheel; 18. a first motor; 19. a level gauge; 20. a second motor; 21. a foot switch; 22. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a novel clamping device for microelectronic welding according to an embodiment of the present invention includes a base 1, a sleeve 2 is symmetrically welded on a top surface of the base 1, columns 3 are respectively inserted into a top end of the sleeve 2, the sleeve 2 is fixedly connected to the columns 3 through first bolts 4 on the upper portion of the sleeve 2, lead screws 5 and slide bars 6 are sequentially arranged between the columns 3 from top to bottom, a limiting sleeve 7 is sleeved on a middle portion of the lead screw 5 between the two columns 3, slide blocks 8 are symmetrically sleeved on the lead screws 5 on two sides of the limiting sleeve 7, two slide sleeves 9 are symmetrically sleeved on the slide bars 6, the slide sleeves 9 are welded to the corresponding slide blocks 8, and a clamping arm 10 is arranged on a side of the slide block 8 parallel to the lead screws 5.

One end of the screw 5 penetrates through one of the columns 3 and is fixedly connected with the hand wheel 11 on one side of the column 3, a second bolt 12 is arranged at the top end of the column 3 close to the hand wheel 11, and the screw 5 is fixedly connected with the column 3 through the second bolt 12.

Wherein, centre gripping arm 10 is the U-shaped structure, and the inner wall of centre gripping arm 10 is parallel with the bottom surface of base 1, and when base 1 was placed on comparatively horizontal mesa, centre gripping arm 10 can keep comparatively horizontal state, need not to adjust clamping device.

Wherein, be located and be provided with the silica gel pad on the inner wall of the U-shaped structure of centre gripping arm 10, centre gripping arm 10 passes through the silica gel pad and contacts with the product, has not only avoided crushing, crushing product, presss from both sides tight product through the silica gel pad simultaneously and can also play the increase friction, promotes the effect of pressing from both sides tight effect.

Wherein, the upper and lower two sides of centre gripping arm 10 all are provided with strengthening rib 13, and centre gripping arm 10 passes through strengthening rib 13 and slider 8 fixed connection, avoids the problem that the product is heavier or the clamp force to lead to centre gripping arm 10 to take place unrecoverable deformation.

Wherein, the screw thread that is located on the lead screw 5 of stop collar 7 both sides revolves to opposite, and when lead screw 5 rotated, two sliders 8 can realize relative or phase-to-phase motion, and the speed of slider 8 adjustment interval is faster to the centre gripping product is located the middle zone between the stand 3 all the time, and welding operation is also more convenient.

Wherein, the bottom of the base 1 is provided with a plurality of adjusting foot pads 14 for manually adjusting the level of the base 1.

Referring to fig. 4, in another embodiment, clamping arms 10 may be symmetrically disposed on two sides of the slider 8 for clamping a plurality of members to be welded at the same time, so as to improve the working efficiency.

Referring to fig. 5-6, in another embodiment, in order to meet the requirement of use and improve the horizontal accuracy of the clamping arm 10, a housing 15 with a cavity structure may be further disposed in the middle of the slider 8, an opening 16 is disposed on one side of the housing 15, a rotating wheel 17 is disposed on the inner side of the housing 15, a first motor 18 is disposed on the outer side of the housing 15, a transmission shaft of the first motor 18 penetrates through the housing 15 and is fixedly connected to the middle of the rotating wheel 17, the clamping arm 10 extends into the housing 15 through the opening 16 and is fixedly connected to the rotating wheel 17, the clamping arm 10 is perpendicular to the side of the rotating wheel 17, a level gauge 19 (LS 160) is embedded on the ground of the clamping arm 10, an output end of the level gauge 19 is connected to the control system, an input end of the first motor 18 is connected to the control system, the level gauge 19 measures the inclination angle of the clamping arm 10, and then sends the detected value to the control system, after receiving the detection data, the control system drives the first motor 18 to rotate by an angle through calculation, so that the clamping arm 10 can be kept in an absolute horizontal state and is not influenced by the flatness of the table top on which the base 1 is placed.

Referring to fig. 7, in another embodiment, in order to meet the requirement of use, the hand wheel 11 connected to the lead screw 5 is replaced by the second motor 20 through sole operation during operation, and the second motor 20 is controlled to be turned on or off through the foot switch 21, so that the adjustment speed is high, and the working strength of the arm can be reduced.

Referring to fig. 8, in another embodiment, in order to meet the requirements of products with different thicknesses, the holding arm 10 may be arranged in a straight shape, and an L-shaped baffle 22 is arranged at an end of the holding arm 10 away from the slider 8, and an end of the baffle 22 located inside the holding arm 10 is connected to the holding arm through a spring, so as to implement the locking force.

The working principle is as follows: when in use, the base 1 is placed on a working table, if the base 1 is inclined obviously, the adjustment is carried out through the corresponding adjusting pad 14, after the adjustment is finished, the extending length of the upright post 3 is adjusted according to the height of an operator, the adjusted upright post is fixed through the first bolt 4, the hand wheel 11 is rotated according to the size of a product, as the lead screw 5 is connected with the rotating hand wheel 11, the lead screw 5 rotates with the rotating drum, as the thread directions of the lead screw 5 positioned at the two sides of the spacing sleeve 7 are opposite, the two sliding blocks 8 move oppositely or separately, the sliding sleeve 9 at the bottom of the sliding block 8 is sleeved on the sliding block 6 to slide along with the sliding drum, so that the sliding block 8 always keeps moving at a vertical position, after the sliding block 8 moves to a proper position, the lead screw 5 is fixed through the second bolt 12, the product is placed at a proper position on the inner side of the clamping arm 10 with a U-shaped structure, the welding can be carried out, as the upper surface and the lower surface of the clamping arm 10 are both provided with the reinforcing ribs 13, so that the clamp arm 10 is not deformed even if it is pressed with a certain strength.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel clamping device is used in microelectronics welding, includes the base, its characterized in that: the top surface of the base is symmetrically welded with sleeves, the top ends of the sleeves are respectively provided with an upright post in an inserting mode, the sleeves are fixedly connected with the upright posts through first bolts at the upper parts of the sleeves, a screw rod and a slide rod are sequentially arranged between the upright posts from top to bottom, a limiting sleeve is sleeved in the middle of the screw rod between the two upright posts, sliding blocks are symmetrically sleeved on the screw rods at two sides of the limiting sleeve, two sliding sleeves are symmetrically sleeved on the slide rod and welded with the corresponding sliding blocks, and a clamping arm is arranged on one surface of each sliding block, which is parallel to the corresponding screw rod; one end of the screw penetrates through one of the upright columns and is fixedly connected with a hand wheel on one side of the upright column, a second bolt is arranged at the top end of the upright column close to the hand wheel, and the screw is fixedly connected with the upright column through the second bolt;

the middle part of the sliding block is provided with a shell with a cavity structure, one side of the shell is provided with an opening, the inner side of the shell is provided with a rotating wheel, the outer side of the shell is provided with a first motor, a transmission shaft on the first motor penetrates through the shell and is fixedly connected with the middle part of the rotating wheel, the clamping arm extends into the shell through an opening and is fixedly connected with the rotating wheel, the clamping arm is perpendicular to the side edge of the rotating wheel, a level gauge is embedded on the ground of the clamping arm, the output end of the level gauge is connected with the control system, the input end of the first motor is connected with the control system, the level gauge measures the inclination angle of the clamping arm and then sends the detected value to the control system, the control system is used for driving the first motor to rotate for an angle after receiving the detection data, the clamping arm can be kept absolutely horizontal and is not affected by the flatness of the table top for placing the base.

2. The clamping device for the microelectronic welding according to claim 1, characterized in that: the clamping arm is of a U-shaped structure, and the inner wall of the clamping arm is parallel to the bottom surface of the base.

3. The clamping device for microelectronic welding as claimed in claim 2, wherein: and a silica gel pad is arranged on the inner wall of the U-shaped structure of the clamping arm.

4. The clamping device for the microelectronic welding according to claim 1, characterized in that: the upper surface and the lower surface of the clamping arm are both provided with reinforcing ribs, and the clamping arm is fixedly connected with the sliding block through the reinforcing ribs.

5. The clamping device for the microelectronic welding according to claim 1, characterized in that: and the screw threads on the screw rods positioned on the two sides of the limiting sleeve are opposite in rotating direction.