CN217018971U

CN217018971U - Clamp for ultrasonic iron

Info

Publication number: CN217018971U
Application number: CN202220656989.1U
Authority: CN
Inventors: 张曹
Original assignee: Changzhou Jingxin Semiconductor Equipment Co ltd
Current assignee: Changzhou Jingxin Semiconductor Equipment Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-07-22
Anticipated expiration: 2032-03-25

Abstract

The application provides an ultrasonic wave anchor clamps for flatiron relates to soldering technical field. The clamp for the ultrasonic soldering iron comprises a first seat body, a second seat body and a metal sheet group; the first seat body is used for connecting the driving mechanism, the second seat body is used for mounting the ultrasonic soldering iron, and a transverse gap is formed between the first seat body and the second seat body; the metal sheet set comprises a plurality of metal elastic sheets arranged side by side, the metal elastic sheets are transversely connected between the first seat body and the second seat body, and the metal elastic sheets are configured to allow the second seat body to move up and down relative to the first seat body. The clamp for the ultrasonic soldering iron is connected with the first seat body and the second seat body through the metal sheet set, and ultrasonic waves generated by the operation of the ultrasonic soldering iron can be offset through the metal elastic sheet, so that a driving mechanism connected with the clamp cannot be influenced.

Description

Clamp for ultrasonic soldering iron

Technical Field

The application relates to the technical field of soldering, in particular to an ultrasonic iron fixture.

Background

As a novel soldering device, an ultrasonic soldering iron can break an oxide film by using ultrasonic waves to realize soldering of materials such as glass ceramics, and has received much attention. With the development of automation technology, ultrasonic soldering irons are integrated on manipulators, and the trend of carrying out automatic soldering is gradually developed. However, the structure of the ultrasonic soldering iron is different from that of a common soldering iron, and the existing clamp is difficult to meet the use requirement of the ultrasonic soldering iron.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a clamp for ultrasonic soldering iron, which can improve the problem that the existing clamp cannot adapt to the use requirement of the ultrasonic soldering iron.

The embodiment of the application is realized as follows:

an embodiment of the present application provides a clamp for an ultrasonic soldering iron, including: the first seat body, the second seat body and the metal sheet group are arranged on the base;

the first seat body is used for connecting a driving mechanism, the second seat body is used for mounting an ultrasonic soldering iron, and a transverse gap is formed between the first seat body and the second seat body;

the metal sheet group comprises a plurality of metal elastic sheets arranged side by side, the metal elastic sheets are transversely connected between the first seat body and the second seat body, and the metal elastic sheets are configured to allow the second seat body to move up and down relative to the first seat body.

In addition, the clamp for the ultrasonic iron provided by the embodiment of the application can also have the following additional technical characteristics:

in an optional embodiment of the application, the first base body comprises a first body and a first boss, the upper end and the lower end of the first body are respectively provided with the first boss in a protruding mode, the second base body comprises a second body, a second boss and a first installation portion, the upper end and the lower end of the second body are respectively provided with the second boss in a protruding mode, the metal elastic pieces are fixed to be adjacent to each other, the first boss is provided with the second boss, and the first installation portion is used for installing the ultrasonic electric soldering iron.

In an optional embodiment of the present application, the metal elastic sheet is square.

In an optional embodiment of the application, the width of the side edge of the metal elastic sheet is L, and L is larger than or equal to 2mm and smaller than or equal to 20 mm.

In an alternative embodiment of the present application, the first mounting portion is connected to the second boss at the lower end of the second body.

In an optional embodiment of the present application, the second base further includes a second mounting portion, the second mounting portion is connected to an end of the first mounting portion, which is far away from the second boss, and the second mounting portion is used for mounting a solder delivery tube.

In an optional embodiment of the present application, a bolt is detachably disposed on a side of the first body opposite to the second body, and the bolt is configured to limit relative movement between the first body and the second body in an up-down direction.

In an optional embodiment of the present application, the number of the metal elastic pieces is two, and the two metal elastic pieces are arranged in parallel.

The beneficial effect of this application is:

the fixture for the ultrasonic soldering iron is connected with the first seat body and the second seat body through the metal sheet set, so that the second seat body can move along with the movement of the first seat body, the second seat body is arranged behind the ultrasonic soldering iron, ultrasonic waves generated by the working of the ultrasonic soldering iron can be offset through the metal elastic sheet, and the driving mechanism connected with the fixture cannot be influenced.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic view of a holder for an ultrasonic soldering iron according to example 1 of the present application;

FIG. 2 is a schematic view of FIG. 1 with the latch removed;

FIG. 3 is a schematic view of a clamp for an ultrasonic iron engaged with a workpiece;

FIG. 4 is a schematic view of the metal spring plate and the pressing block;

FIG. 5 is a schematic view of a metal dome;

FIG. 6 is a schematic view of a clamp for an ultrasonic iron in cooperation with an automated work platform;

FIG. 7 is a schematic view showing the posture change of the jig for the ultrasonic iron during the movement of the jig when the workpiece is not laid horizontally;

fig. 8 is a schematic view of a jig for an ultrasonic soldering iron according to example 2.

Icon: 1-a first seat body; 11-a first body; 12-a first boss; 2-a second seat body; 21-a second body; 22-a second boss; 23-a first mounting portion; 24-a second mounting portion; 3-a metal spring sheet; 4-ultrasonic iron; 5-feeding a tin tube; 6-briquetting; 6 a-briquetting; 7-a screw; 8-a bolt; 9-a damping block; 101-lateral clearance; 102-an automation platform; 1022-the output of the automated job platform; 103-a workpiece; 104-tin wire.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships where the product is used as it is, and are used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1

Referring to fig. 1 to 7, an embodiment of the present application provides a clamp for an ultrasonic soldering iron, including: the device comprises a first seat body 1, a second seat body 2 and a metal sheet group;

the first seat 1 is used for connecting a driving mechanism (such as an automatic platform 102 hereinafter), the second seat 2 is used for mounting an ultrasonic soldering iron 4, and a transverse gap 101 is formed between the first seat 1 and the second seat 2;

the metal sheet group comprises a plurality of metal elastic sheets 3 arranged side by side, the metal elastic sheets 3 are transversely connected between the first seat body 1 and the second seat body 2, and the metal elastic sheets 3 are configured to allow the second seat body 2 to move up and down relative to the first seat body 1.

The metal dome 3 of the present embodiment is made of metal, such as steel, copper or aluminum, with a thickness of 0.1-3 mm.

The number of the metal elastic pieces 3 is two, and the two metal elastic pieces 3 are arranged in parallel. It can be understood that the number of the metal elastic pieces 3 can be increased according to the requirement, for example, when the clamped ultrasonic soldering iron 4 is heavy, a certain number of metal elastic pieces 3 can be increased to avoid excessive deformation of the two metal elastic pieces 3.

Specifically, as shown in fig. 1, the first base 1 includes a first body 11 and a first boss 12, the upper and lower ends of the first body 11 are respectively provided with the first boss 12 in a protruding manner, the second base 2 includes a second body 21, a second boss 22 and a first mounting portion 23, the upper and lower ends of the second body 21 are respectively provided with the second boss 22 in a protruding manner, the metal elastic piece 3 is fixed on the adjacent first boss 12 and the second boss 22, and the first mounting portion 23 is used for mounting the ultrasonic electric soldering iron. Through the design of the first boss 12 and the second boss 22, the metal elastic sheet 3 has a space for elastic deformation in the vertical direction, so that the metal elastic sheet can exert the function thereof. Of course, except for the arrangement of the boss on the body, the body may be hollowed to form a part of space for erecting the metal elastic sheet 3 and allowing the metal elastic sheet 3 to elastically deform.

In detail, the first mounting portion 23 of the present embodiment is connected to the second boss 22 at the lower end of the second body 21. The connection of the first mounting portion 23 to the second boss 22 at the lower end can lower the center of gravity of the entire jig, and facilitate movement of the jig, but it is also conceivable to connect the first mounting portion 23 to the second body 21 or to connect the first mounting portion 23 to the second boss 22 at the upper end, when the control accuracy is sufficient.

The second base 2 further comprises a second mounting portion 24, the second mounting portion 24 is connected with one end of the first mounting portion 23, which is far away from the second boss 22, and the second mounting portion 24 is used for mounting the solder feeding tube 5. The tin feeding tube 5 can be referred to the prior art, and can be used for clamping the tin wire 104, and when the tin wire 104 is gradually consumed, the tin wire 104 is gradually delivered to the working end of the ultrasonic soldering iron 4, so that the continuous soldering operation is ensured.

Referring to fig. 4 and 5, the metal elastic sheet 3 of the present embodiment is square. Furthermore, the width of the side edge of the metal elastic sheet 3 is L, and L is more than or equal to 2mm and less than or equal to 20 mm. The metal elastic sheet 3 is designed into a square shape, so that the elasticity of the metal elastic sheet can be improved, and the mutual influence between the first seat body 1 and the second seat body 2 is reduced. In addition, the width of the seat is designed, so that the phenomenon that the side edge of the seat is too narrow and excessively deformed to be non-elastic deformation is avoided, and the insufficient connection strength between the first seat body 1 and the second seat body 2 is also avoided. Meanwhile, the elasticity is reduced due to too wide width, and the expected effect cannot be achieved. Optionally, the metal elastic sheet 3 may also be made into a hollow shape, or other shapes such as a circle, a diamond, and the like. As long as the connection strength and elasticity are sufficient to meet the use requirement.

Referring to fig. 1 and 4, the present embodiment uses the pressing block 6 to fix the metal elastic sheet 3, and the fixing operation can be simply and reliably completed by the screw 7, which is very practical.

The metal elastic sheet 3 of the present embodiment has a flexible feature, as shown in fig. 2, so that the second seat 2 and the first seat 1 can move relative to each other in the vertical direction, and the vibration is not transmitted to the first seat 1, thereby reducing the energy consumption. When the common clamp is used, a part of ultrasonic energy can be transmitted to the clamp to cause the clamp to vibrate, and if the clamp is flexible, the ultrasonic energy consumed by the ultrasonic driving the clamp to vibrate is smaller.

If the ultrasonic wave is in rigid connection, when the ultrasonic wave drives the clamp to vibrate, the clamp is rigidly fixed on the automatic rack, the driving vibration faces large resistance, at the moment, the load is large, the ultrasonic wave outputs more energy to resist the load, under the condition, the energy really giving the vibration to the end part is less, and most of the energy is lost in the aspect of clamp load.

Because the ultrasonic energy output is determined according to the size of the load, the larger the load is, the larger the output energy is, therefore, the application uses the metal elastic sheet 3, the loads in the aspects of fixing, locking and the like are reduced as much as possible during design, the ultrasonic energy is transmitted to the workpiece 103 to be processed as much as possible, and the problem that the existing clamp is not suitable for being matched with the ultrasonic soldering iron 4 is effectively solved.

Referring to fig. 1, a latch 8 is detachably disposed on a side of the first body 11 opposite to the second body 21, and the latch 8 is used for limiting the relative movement between the first body 11 and the second body 21 in the vertical direction.

Wherein, the first body 11 and the second body 21 are provided with notches, and the inserted pin 8 can be inserted after being spliced. The bolt 8 plays the effect of locking piece for keep relative position unchangeable between first pedestal 1 and the second pedestal 2, and through the position in the hole of design bolt 8, make metal shrapnel 3 can keep a not pressure-bearing state, avoid second pedestal 2 and the gravity of the part of above-mentioned installation to lead to metal shrapnel 3 to lack elasticity or produce non-elastic deformation, make when need not work, metal shrapnel 3 has a good state of awaiting the work.

Of course, it should be understood that, when the pin 8 is removed from fig. 2, it does not indicate that the second seat 2 has a great height difference from the first seat 1 when in operation, and fig. 2, besides illustrating that the second seat 2 can move relative to the first seat 1 in the up-and-down direction, can also be understood that, if the pin 8 is not used for a long time, the metal elastic sheet 3 is inelastically deformed due to the second seat 2 and the load thereon, and cannot recover to the original horizontal and elastic state.

The embodiment of the application provides a clamp using method, which is applied to the clamp for the ultrasonic soldering iron, and the method comprises the following steps:

an ultrasonic soldering iron 4 is arranged on the second seat body 2;

moving the clamp for the ultrasonic soldering iron so that the ultrasonic soldering iron 4 contacts the workpiece 103;

the pressure of the ultrasonic iron 4 on the workpiece 103 is adjusted so that the metal dome 3 is horizontal (as shown in fig. 3).

In the step of adjusting the pressure of the ultrasonic iron 4 on the workpiece 103 so that the metal dome 3 is in a horizontal state:

the ratio of the pressure applied by the ultrasonic iron 4 to the workpiece 103 to the self weight of the ultrasonic iron 4 is H, and H is more than or equal to 0.8 and less than or equal to 1.5.

The following table shows the strength comparison data using a Sn-3.0Ag-0.5Cu (SAC305) tin wire 104, an ultrasonic iron 4 frequency of 60KHz, and a workpiece 103 of red copper.

Comparative strength data obtained according to standard GB/T228-2002 tensile test at room temperature when the applied pressure and the weight of the ultrasonic iron 4 itself have different ratios. The intensity data are the average of three tests performed at the same pressure multiplier.

It can be seen through experiments that the pressure applied to the workpiece 103 is only the weight of the ultrasonic iron 4 itself and does not impart additional pressure. If excessive pressure is applied, the surface of the workpiece 103 is easily damaged, and effective output of ultrasonic energy is not facilitated, so that the bonding force between tin and the workpiece 103 is poor. The ratio of the pressure to the self weight of the ultrasonic iron 4 is different, 1 means that the pressure is the same as the self weight of the ultrasonic iron, and the metal sheet is in a horizontal state at the moment, so that the pressure can be conveniently observed and determined during debugging, and an expensive pressure sensor is not needed to know that the applied pressure is in an allowable range. When the applied pressure is less than the self weight of the ultrasonic soldering iron, the metal elastic sheet 3 is inclined as shown in fig. 2, and the second seat body 2 has a pulling force on the first seat body 1, so that the applied pressure is less than the self weight of the ultrasonic soldering iron 4. If the applied pressure is greater than the self-weight of the ultrasonic iron 4, the metal dome 3 is tilted in the opposite direction (as shown on the left side of fig. 7). Therefore, the applied pressure value can be conveniently observed and judged without a pressure sensor.

Referring to fig. 7, when the workpiece 103 is not placed horizontally, the left side is higher than the right side, and when the clamp for the ultrasonic iron drives the iron head to move from right to left, the metal elastic sheet 3 changes in height, which can be conveniently observed, so that the operator can adjust the height of the workpiece 103 based on the change. The quality of the final tin-soldered product is guaranteed to meet the requirements.

The method further comprises the following steps:

mounting the clamp for the ultrasonic iron on an output end 1022 of the automatic operation platform, and arranging a locking piece;

when the clamp for the ultrasonic iron does not work, the locking piece (refer to the bolt 8) is used for locking the first seat body 1 and the second seat body 2 so as to prevent the metal elastic sheet 3 from deforming; when the clamp for the ultrasonic iron works, the locking piece is unlocked to lock the first seat body 1 and the second seat body 2, so that the metal elastic sheet 3 is allowed to generate elastic deformation.

It can be understood that, when the clamp for the ultrasonic soldering iron is not installed at the output end 1022 of the automated working platform, the locking member such as the latch 8 may not be provided, for example, the clamp may be flatly placed on the storage position, so that the metal elastic sheet 3 is not pulled by the gravity of the first seat 1 or the second seat 2. Referring to fig. 6, the automated working platform may refer to a working platform in general technology, which has a shaft capable of moving up and down as an output end, or may use a robot arm as the automated working platform, and mainly drives the clamp for the ultrasonic iron to drive the ultrasonic iron 4 to adjust the pressure on the workpiece 103 and solder the workpiece 103.

Example 2

Referring to fig. 8, the difference between the embodiment and the embodiment 1 is mainly:

the pressing blocks 6a used for fixing the metal elastic sheets 3 at the upper ends of the first body 11 and the second body 21 are different in appearance structure, and other devices needing to be used can be conveniently connected to the pressing blocks 6a by designing the appearance of the pressing blocks 6a, so that more functions can be realized, for example, a camera is arranged to shoot welding spot images after soldering, and whether the quality of soldering is qualified or not is confirmed.

In addition, a damping block 9 can be arranged on the metal elastic sheet 3, so that the situation that the stability is influenced by overlarge vibration quantity of the metal elastic sheet 3 when the high-power ultrasonic electric soldering iron is used is prevented.

The rest of the structure and functions can be referred to embodiment 1 and the prior art, and are not described herein again.

No matter embodiment 1 or embodiment 2, the principle is that the ultrasonic soldering iron 4 is fixed to the second base body 2, and the ultrasonic soldering iron 4 will generate ultrasonic vibration when working, which inevitably causes micro-vibration and displacement of the second base body 2, and the vibration can be offset by the metal sheet, so that the first base body 1 will not be affected, and the connection between the first base body 1 and the automation platform 102 will not be affected, and thus, the long-term stability and reliability are achieved. In combination with the corresponding method of use, the pressure applied to the workpiece 103 is only the weight of the ultrasonic iron 4 itself and no additional pressure is given. The poor bonding force between the tin and the workpiece 103 or the damage to the workpiece 103 can be avoided. Meanwhile, the use of a pressure sensor with higher cost is avoided, and the reliability of practical application is greatly improved. And the operator can conveniently judge whether the workpiece 103 is placed horizontally, so that defective products caused by non-horizontal placement are avoided. In addition, the metal elastic sheet 3 is used for connecting the second seat body 2 and the first seat body 1, so that the heat transfer can be reduced. The ultrasonic soldering iron 4 is provided with a heating device, the end part of the soldering iron can be heated to 450 ℃ of 100-.

To sum up, the anchor clamps for ultrasonic wave flatiron of this application pass through the sheetmetal group and connect first pedestal 1 and second pedestal 2 for second pedestal 2 can remove along with the removal of first pedestal 1, and second pedestal 2 is behind installation ultrasonic wave flatiron 4, and the ultrasonic wave that ultrasonic wave flatiron 4 work produced can offset through metal shrapnel 3, thereby can not make the actuating mechanism who is connected with this anchor clamps receive the influence. And the corresponding use method is combined, so that the excessive pressure can be avoided, and the better soldering quality can be obtained.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clamp for an ultrasonic soldering iron, comprising: the first seat body, the second seat body and the metal sheet group are arranged on the base;

the metal sheet set comprises a plurality of metal elastic sheets arranged side by side, the metal elastic sheets are transversely connected between the first seat body and the second seat body, and the metal elastic sheets are configured to allow the second seat body to move up and down relative to the first seat body.

2. The clamp for the ultrasonic soldering iron according to claim 1, wherein the first base comprises a first body and a first boss, the first boss is protruded from both upper and lower ends of the first body, the second base comprises a second body, a second boss and a first mounting portion, the second boss is protruded from both upper and lower ends of the second body, the metal spring is fixed to the adjacent first boss and the second boss, and the first mounting portion is used for mounting the ultrasonic soldering iron.

3. The holder for an ultrasonic soldering iron according to claim 1 or 2, wherein the metal dome is square.

4. The clamp for the ultrasonic soldering iron according to claim 3, wherein the width of the side edge of the metal elastic sheet is L, and L is larger than or equal to 2mm and smaller than or equal to 20 mm.

5. The holder according to claim 2, wherein said first mounting portion is connected to said second boss at said lower end of said second body.

6. The ultrasonic iron clamp of claim 5, wherein the second base further comprises a second mounting portion, the second mounting portion is connected to an end of the first mounting portion that is distal from the second boss, and the second mounting portion is configured to mount a solder tube.

7. The clamp of claim 2, wherein a pin is detachably disposed on a side of the first body opposite to the second body, the pin being configured to limit the relative movement of the first body and the second body in the up-and-down direction.

8. The holder according to claim 1, wherein the number of the metal strips is two, and the two metal strips are arranged in parallel.