Glass substrate circuit board clamp
Technical Field
The invention relates to the technical field of circuit boards, in particular to a glass substrate circuit board clamp.
Background
Because the circuit board used at present is generally made of organic resin or ceramic as a substrate material, wherein the circuit board using organic resin as a base material is difficult to withstand the high temperature caused by the vacuum sputtering process, and the Coefficient of Thermal Expansion (CTE) of the resin material is very large, the metal wire made thereon is easily broken (crack); although the ceramic substrate can withstand high temperature, it has many pores on its surface, which makes it difficult to form a thin and continuous metal layer or metal wire, as in the case of a circuit board using organic resin as a base material. In order to overcome the above problems, a glass-based circuit board is designed, and in the process flows of assembly, detection and the like, when a general fixture clamps the glass-based circuit board, the edge of the glass-based circuit board is usually positioned in a pneumatic/hydraulic/mechanical pressing mode.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention discloses a glass substrate circuit board clamp.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the embodiment of the invention discloses a glass substrate circuit board clamp which comprises a bearing mechanism and at least one pressing mechanism located on the side edge of the bearing mechanism, wherein the bearing mechanism comprises a bearing plate and positioning right-angle blocks located at four corners of the bearing plate, the pressing mechanism comprises a pressing column, a pressing arm, a connecting seat and a driving group, the pressing column is fixedly arranged at the head of the pressing arm, the pressing arm is arranged in a groove in the top of the connecting seat, the tail of the pressing arm is connected with the connecting seat through a rotating shaft, two sides of the pressing arm and two sides of the connecting seat are respectively connected with a spring on the same side, the pressing arm is further connected with the driving group, and the driving group is used for driving the pressing arm to rotate upwards or downwards around the connecting point of the pressing arm and the connecting seat.
As one preferable aspect of the present invention, the driving unit includes a stopper rod vertically located below the pressing arm, and a sliding guide shaft, a bottom end portion of the stopper rod is connected to the connecting seat by a stepped bolt, an upper end portion of the stopper rod is movably connected to the pressing arm, one side of a middle portion of the stopper rod is provided with a groove, the other side of the middle portion of the stopper rod extends outward to form a support arm, a lower portion of the support arm abuts against a top portion of a spring plunger, the sliding guide shaft is horizontally disposed in the accommodating through hole of the connecting seat, one end portion of the sliding guide shaft is provided with a first tapered portion and a thin circular shaft portion, a middle portion of the sliding guide shaft is provided with a second tapered portion and a main body portion connected to the second tapered portion, a diameter of the first tapered portion is greater than a diameter of the thin circular shaft portion, and a diameter of the second tapered portion is greater than a diameter of the main body portion, another tip of slip direction axle is worn out the holding through-hole and the end connection of slip direction axle has the button, on the slip direction axle the cover is equipped with the spring between button and the connecting seat outer wall, be connected with the adjusting lever on the arm of pressing, the adjusting lever passes fenestra on the connecting seat and with the contact of slip direction axle, the first toper portion and the thin round axle portion intermittent type of slip direction axle are located in the recess.
Further preferably, after the pressing arm is pressed, the adjusting lever is in contact with the second tapered portion of the slide guide shaft and the first tapered portion of the slide guide shaft is located in the groove, when the pressing post does not press the circuit board, and after the slide guide shaft is pressed next, the thin round shaft portion is slid into the groove and the adjusting lever is in contact with the main body portion, when the pressing arm is rotated downward to press the circuit board.
As a preferred embodiment of the present invention, the upper end of the stop rod is provided with a side slot, the pressing arm includes a base plate, a pressing arm body fixed on the base plate and extending toward one end, and an extension arm extending along one end of the base plate in the same direction as the extending direction of the pressing arm body, the extension arm is disposed in the slot to movably connect the pressing arm and the stop rod, and the other end of the base plate is movably connected to the connection seat through a rotation shaft.
In a preferred embodiment of the present invention, the pressing column is a stopper bolt.
In a preferred embodiment of the present invention, a pressing button is fixed above the pressing arm.
Further preferably, the pressing knob is a mushroom-type knob.
Compared with the prior art, the invention has at least the following advantages:
the glass-based circuit board clamp provided by the invention initially positions the glass-based circuit board through the bearing plate and the positioning right-angle block to limit the freedom degrees of the glass-based circuit board in the width direction and the length direction, and then presses the glass-based circuit board through the pressing column to limit the freedom degree of the glass-based circuit board in the height direction, and the pressing column can move up and down so that the glass-based circuit board can be conveniently taken and placed; because the pressing force of the pressing column is moderate, the glass-based circuit board can be prevented from being damaged by large impact force.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a first schematic structural diagram of a glass substrate fixture according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of a glass substrate fixture according to an embodiment of the present invention;
FIG. 3 is a first schematic structural diagram of a pressing mechanism according to an embodiment of the present invention;
FIG. 4 is a second schematic structural diagram of a pressing mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic view of a portion of a pressing mechanism according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a stopper rod according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.
Referring to fig. 1 to 6, the embodiment of the invention discloses a glass substrate circuit board fixture, which includes a bearing mechanism 1 and at least one pressing mechanism 2 located at a side edge of the bearing mechanism 1, wherein the bearing mechanism 1 includes a bearing plate 11 and positioning right-angle blocks 12 located at four corners of the bearing plate 11, the pressing mechanism 2 includes a pressing column 21, a pressing arm 22, a connecting seat 23 and a driving set 24, the pressing column 21 is fixedly arranged at a head portion of the pressing arm 22, the pressing arm 22 is arranged in a top groove 2412 of the connecting seat 23, a tail portion of the pressing arm 22 is connected with the connecting seat 23 through a rotating shaft 25, two sides of the pressing arm 22 and two sides of the connecting seat 23 are respectively connected with a spring 26 at the same side, the pressing arm 22 is further connected with the driving set 24, and the driving set 24 is used for driving the pressing arm 22 to rotate upwards or downwards around a connection point of the pressing arm 22 and the connecting seat 23.
Wherein, the driving unit 24 includes a stopping rod 241 vertically located below the pressing arm 22 and a sliding guide shaft 242, the bottom end of the stopping rod 241 is connected with the connecting seat 23 through a step bolt 243, so that the bottom end of the stopping rod 241 can rotate relative to the connecting seat 23, the upper end of the stopping rod 241 is movably connected with the pressing arm 22, specifically, the upper end of the stopping rod 241 is provided with a side slot 2411, the pressing arm 22 includes a base plate 221, a pressing arm body 222 fixed on the base plate 221 and extending towards one end, and an extension arm 223 extending along one end of the base plate 221 towards the same direction as the extending direction of the pressing arm body 222, the extension arm 223 is arranged in the side slot 2411 to realize the movable connection of the pressing arm 22 and the stopping rod 241, the other end of the base plate 221 is movably connected with the connecting seat 23 through a rotating shaft 25, one side of the middle part of the stopping rod 241 is provided with a groove 2412, the other side of the middle part of the stopping rod 241 extends outwards by a support arm 2413, the lower part of the support arm 2413 abuts against the top of a spring plunger 27, the sliding guide shaft 242 is horizontally arranged in the accommodating through hole 231 of the connecting seat 23, one end part of the sliding guide shaft 242 is provided with a first tapered part 2421 and a thin round shaft part 2422, the middle part of the sliding guide shaft 242 is provided with a second tapered part 2423 and a main body part 2424 connected with the second tapered part 2423, the diameter of the first tapered part 2421 is larger than that of the thin round shaft part 2422, the diameter of the second tapered part 2423 is larger than that of the main body part 2424, the other end part of the sliding guide shaft 242 penetrates through the accommodating through hole 231 and the end part of the sliding guide shaft 242 is connected with a button 244, a spring 245 is sleeved on the sliding guide shaft 242 between the button 244 and the outer wall of the connecting seat 23, an adjusting rod 246 is connected on the pressing arm 22, the adjusting rod 246 penetrates through a window hole on the connecting seat 23 to be in contact with the sliding guide shaft 242, and the first tapered part 2421 and the thin round part 2422 of the sliding guide shaft 242 are intermittently positioned in the groove 2412. Preferably, the pressing post 21 is a stop bolt, a pressing knob 28 is fixed above the pressing arm 22, the pressing arm 22 can be conveniently pressed or lifted by the pressing knob 28, and a mushroom-type knob can be used as the pressing knob 28.
When the pressing arm 22 is pressed by the pressing knob 28, the adjusting rod 246 is driven by the pressing arm 22 to contact with the second tapered part 2423 of the sliding guide shaft 242 and the first tapered part 2421 of the sliding guide shaft 242 is located in the groove 2412, at this time, the pressing column 21 does not press the circuit board K, when the sliding guide shaft 242 is pressed into the accommodating through hole 231 of the connecting seat 23, the sliding guide shaft 242 advances for a certain distance, the thin round shaft part 2422 of the sliding guide shaft 242 slides into the groove 2412 and the adjusting rod 246 is in contact with the main body part 2424, at this time, the pressing arm 22 is driven by the stopping rod 241 to swing downwards a little, so as to press the glass-based circuit board K, the downward swinging force is moderate, the glass-based circuit board cannot be damaged, and the glass-based circuit board can be pressed effectively; when the pressing knob 28 is pulled up, the extension arm 223 of the pressing arm 22 acts on the spring plunger 27 so that the spring plunger is compressed, and at the same time, the stopper lever 241 rotates to release the slide guide shaft 242 (the slide guide shaft 242 is released from the press-in state), so that the pressing column 21 releases the clamping of the glass-based circuit board.
Through the technical scheme, the glass-based circuit board clamp provided by the invention initially positions the glass-based circuit board through the bearing plate 11 and the positioning right-angle block 12 to limit the degree of freedom of the glass-based circuit board in the width direction and the length direction, then presses the glass-based circuit board through the pressing column 21 to limit the degree of freedom of the circuit board in the height direction, and the pressing column 21 can move up and down so as to be convenient for taking and placing the glass-based circuit board; in addition, the pressing force of the pressing column 21 is moderate, so that the glass-based circuit board can be prevented from being damaged by large impact force.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.