CN115156690A

CN115156690A - Ultrasonic welding machine, fine adjustment stroke assembly thereof and using method

Info

Publication number: CN115156690A
Application number: CN202210800530.9A
Authority: CN
Inventors: 刘义超; 叶润洲
Original assignee: Lksonics Ultrasonics Co ltd
Current assignee: Lksonics Ultrasonics Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-10-11

Abstract

The invention provides a fine adjustment stroke component of an ultrasonic welding machine and a using method of the component. The fine setting knob is internally provided with a mounting cavity, the locking component comprises a locking sleeve and a locking knob which are connected along the axial direction, the locking sleeve is positioned in the mounting cavity, and the locking knob is positioned outside the mounting cavity and is positioned between the fine setting knob and the fixing seat in the axial direction. The periphery wall of the locking sleeve is provided with a first scale mark arranged along the axial direction. The invention has fewer parts, is convenient to install and adjust the stroke and is convenient to observe.

Description

Ultrasonic welding machine, fine adjustment stroke assembly thereof and using method

Technical Field

The invention relates to the field of ultrasonic welding equipment, in particular to an ultrasonic welding machine, a fine adjustment stroke assembly of the ultrasonic welding machine and a using method of the ultrasonic welding machine.

Background

The ultrasonic welding machine is an advanced high-tech device which converts high-frequency electric energy into mechanical vibration energy through a transducer to act on workpieces, generates high-frequency friction between the surfaces of the two workpieces until the surfaces of the two workpieces are heated and welded together. The ultrasonic welding machine has the advantages of higher working efficiency, simple and convenient operation and labor cost saving, and is widely applied to the daily necessities industry, the toy industry, the electrical appliance industry, the automobile manufacturing industry and the electronic industry.

The fine setting stroke subassembly of current ultrasonic welding machine sets up in the fixing base and with fixing base threaded connection, and fine setting stroke subassembly adopts the cooperation of scale groove on fine setting pointer and the aircraft nose panel mostly, conveniently observes and adjusts the descending stroke of sending out the oscillator subassembly. The fine adjustment stroke assembly of the ultrasonic welding machine is fixed through the limiting bolt arranged on the side wall of the fixing seat, so that the fine adjustment stroke assembly is prevented from rotating in the working process of the ultrasonic welding machine, the set stroke is prevented from changing, welding deviation is generated, and welding quality is reduced. But the spare part of this scheme is more, and the installation is comparatively complicated, sets up slottedly on the aircraft nose panel, because the aircraft nose shell can block the lateral wall of fixing base when the spacing bolt of needs screwing to locking effect is limited, and user's hand need stretch into the aircraft nose shell and come rotatory spacing bolt, has the risk of rotatory not in place.

Disclosure of Invention

In order to solve the above problems of the prior art, a first object of the present invention is to provide an ultrasonic welding fine adjustment stroke assembly which is convenient to adjust and lock.

It is a second object of the present invention to provide an ultrasonic welding machine including the above fine adjustment stroke assembly.

A third object of the present invention is to provide a method of use for the above fine adjustment stroke assembly.

In order to achieve the first purpose, the fine adjustment travel assembly of the ultrasonic welding machine comprises a fine adjustment screw rod, a fine adjustment knob assembly and a fixed seat, wherein the fine adjustment screw rod is in threaded connection with the fixed seat, the fine adjustment knob assembly is arranged at one end of the fine adjustment screw rod, a limiting part is further arranged on the fine adjustment screw rod, the fine adjustment knob assembly comprises a fine adjustment knob and a locking part, the fine adjustment knob is fixedly connected with the fine adjustment screw rod, and the locking part is in threaded connection with the fine adjustment screw rod and can move along the axial direction of the fine adjustment screw rod.

It is from top to bottom visible, through setting up the locking part on the fine setting lead screw jointly with the fine setting knob, rotatory locking part is in order to lock the fine setting lead screw, simple structure, make things convenient for dismouting and locking, can further promote the locking effect.

The further scheme is that a mounting cavity is formed in the fine adjustment knob, the locking component comprises a locking sleeve and a locking knob which are connected along the axial direction, the locking sleeve is located in the mounting cavity, and the locking knob is located outside the mounting cavity and is located between the fine adjustment knob and the fixing seat in the axial direction.

The further scheme is that a first scale mark arranged along the axial direction is arranged on the peripheral wall of the locking sleeve.

It is from top to bottom visible, make things convenient for the locking sleeve to install in the fine setting knob through the installation cavity that sets up in the fine setting knob to be provided with first scale mark on the locking sleeve, the part quantity of the fine setting stroke subassembly that has significantly reduced, convenient processing and assembly, the accurate fine setting stroke of simultaneous person of facilitating the use.

The further scheme is that the fine adjustment screw rod comprises a screw rod part and a slide rod part which are axially connected along the fine adjustment screw rod, the screw rod part is in threaded connection with the fixed seat, the locking sleeve is in sliding connection with the slide rod part, and the fine adjustment knob is in threaded connection with the screw rod part.

Therefore, the machining amount of the fine adjustment screw threads can be reduced through the slide rod part arranged on the fine adjustment screw rod, and machining and installation are facilitated.

The further scheme is that the fixing base is provided with a connecting hole, a fine adjustment mounting seat is detachably mounted in the connecting hole, a threaded hole is formed in the fine adjustment mounting seat, the fine adjustment screw rod is matched with the threaded hole, and the limiting portion and the fine adjustment knob assembly are respectively located on two sides of the fine adjustment mounting seat.

Therefore, the fine adjustment screw rod is matched with the fine adjustment mounting seat to be suitable for connecting holes of various sizes, and the universality of the fine adjustment stroke assembly is improved.

The further scheme is that a counter bore is formed in the end wall, close to one side of the fixed seat, of the locking component, the counter bore and the fine adjustment mounting seat are arranged oppositely along the axial direction of the locking component, and the diameter of the counter bore is larger than the outer diameter of the fine adjustment mounting seat.

It is from top to bottom visible, through setting up the counter sink that is close to fixing base one side end wall upper surface and sets up at the locking knob, can avoid because of fine setting mount pad machining tolerance problem, cause the unable butt of locking knob to the bottom surface of fixing base, prevent the unable problem of locking and the problem that has certain precision deviation.

The further scheme is that the outer surface of one side of the fine adjustment knob, which is close to the fixed seat, is provided with second scale marks arranged along the circumferential direction of the fine adjustment knob.

From top to bottom, through the second scale mark that sets up for the stroke of fine setting stroke subassembly regulation is more accurate.

The further scheme is that one end of the fine adjustment knob, which is close to the fixed seat, is provided with an inclined table part, the outer diameter of the inclined table part is gradually increased from the end part of the fine adjustment knob to the direction far away from the fixed seat along the axial direction of the fine adjustment knob, and the second scale mark is arranged on the outer surface of the inclined table part.

It is thus clear that the second scale mark is located the surface of sloping platform portion for first scale mark is closer to the second scale mark, and person of facilitating the use observes.

In order to achieve the second object, the invention provides an ultrasonic welding machine comprising the fine adjustment stroke assembly, wherein the ultrasonic welding machine comprises a machine head assembly, the machine head assembly comprises a lifting support, a vibration generating cylinder assembly and a vibration generating cylinder driving mechanism, the vibration generating cylinder driving mechanism drives the vibration generating cylinder assembly to move along a first direction, and the vibration generating cylinder assembly and the vibration generating cylinder driving mechanism are both arranged on the lifting support; the fixed seat and the lifting bracket are integrally formed; or the fixing seat is detachably connected with the vibration generating barrel assembly, the lifting support is detachably connected with a limiting seat, the limiting seat is located between the limiting part and the fixing seat, and the fine adjustment screw rod can be slidably arranged in the limiting seat in a penetrating mode.

In order to achieve the third object, the present invention provides a method for using the fine adjustment stroke assembly, which comprises the following steps:

the first step is as follows: the fine adjustment knob assembly is rotated in the forward direction, so that the fine adjustment stroke mechanism moves for a first stroke along the first direction, and the first stroke is larger than the designed stroke;

the second step is that: calculating a second section of stroke of the locking sleeve to be moved according to the first scale on the locking sleeve and the second scale on the fine adjustment knob, and reversely rotating the locking sleeve to move the second section of stroke;

the third step: the fine adjustment knob is rotated reversely, so that the locking sleeve is abutted to the lower surface of the fixing seat.

In conclusion, the fine adjustment stroke assembly has fewer parts, is convenient to install and adjust, improves the locking effect, does not interfere with the handpiece shell, and is convenient for a user to operate.

Drawings

Fig. 1 is a perspective view of an ultrasonic welding machine according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of an internal structure of an ultrasonic welding machine according to an embodiment of the present invention.

FIG. 3 is an exploded view of a head assembly, a head drive mechanism, and a post in accordance with an embodiment of the present invention.

Fig. 4 is a structural view of a vibration drum assembly and a lifting bracket according to a first embodiment of the present invention.

Figure 5 is an exploded view of the shock tube assembly and lifting bracket of the first embodiment of the present invention.

Fig. 6 is an exploded view of the speed reduction switch, the ultrasonic switch and the stopper of the first embodiment of the present invention.

Fig. 7 is a plan view of the speed reducing switch, the ultrasonic switch and the stopper of the first embodiment of the present invention.

Fig. 8 is a structural view of a damper cylinder assembly and a lifting bracket according to a second embodiment of the present invention.

Fig. 9 is a plan view of a speed reducing switch, an ultrasonic switch and a stopper according to a second embodiment of the present invention.

FIG. 10 is a cross-sectional view of the lift bracket and vernier assembly according to the first embodiment of the present invention.

Fig. 11 is an enlarged view of a portion a in fig. 10.

Fig. 12 is an exploded view of a first embodiment of the present invention vernier bar assembly.

Fig. 13 is an exploded view of a rack, a box and a lower machine of an ultrasonic welding machine according to an embodiment of the present invention.

Figure 14 is an exploded view of a hold down assembly according to an embodiment of the present invention.

Figure 15 is a cross-sectional view of a hold-down assembly according to an embodiment of the present invention.

Fig. 16 is an enlarged view at B in fig. 15.

Detailed Description

First embodiment of speed reduction switch, ultrasonic wave switch and ultrasonic welding machine:

referring to fig. 1 to 3, the ultrasonic welding machine of the present embodiment includes a head assembly 4, a machine base 1 and a head driving mechanism 3, a column 2 is disposed on the machine base 1, a guide rail 20 extending along the Z direction is disposed on a side wall of the column 2 at an interval, a connection slider 64 and a locking device 65 are disposed on one side of the head assembly 4 close to the column 2, when the locking device 65 is used to hold the guide rail 20, the head assembly 4 cannot move, the head assembly 4 is connected with the guide rail 20 through the connection slider 64, the head driving mechanism 3 includes a motor 31 and an adjusting screw 30, the head assembly 4 is connected with the adjusting screw 30 through a screw connecting arm 63, and the motor 31 drives the adjusting screw 30 to rotate so that the head assembly 4 moves on the guide rail 20 along the Z direction.

The head assembly 4 comprises a main control circuit (not shown in the figure), a lifting support 6 and a buffer mechanism 8, wherein the lifting support 6 is provided with a fine adjustment stroke assembly 9, a vibration generating drum driving mechanism 7 and a vibration generating drum assembly 5, a slide rail 50 (shown in figure 5) is arranged on the side wall of the vibration generating drum assembly 5 close to one side of the lifting support 6, a slide block 67 is correspondingly arranged on the lifting support 6, and the slide block 67 is connected with the slide rail 50. A section of thick bamboo actuating mechanism 7 shakes, a section of thick bamboo subassembly 5 and buffer gear 8 all are connected with the master control circuit electricity, and buffer gear 8 is connected with a section of thick bamboo actuating mechanism 7 shakes, and a section of thick bamboo actuating mechanism 7 that shakes drives a section of thick bamboo subassembly 5 that shakes and removes along the Z direction for lifting support 6.

Referring to fig. 4, fine setting stroke subassembly 9 includes fine setting pole subassembly and stop part 94, the fine setting pole subassembly includes fine setting lead screw and fine setting knob subassembly, be provided with installation cavity 60 in the lifting support 6, lifting support 60 includes first installation cavity lateral wall 61 and the second installation cavity lateral wall 62 of mutually perpendicular connection, first installation cavity lateral wall 61 extends along the Z direction, set up two spouts 66 that extend along the Z direction on the first installation cavity lateral wall 61, second installation cavity lateral wall 62 extends to stand 2 from first installation cavity lateral wall 61 along the Y direction, a section of thick bamboo subassembly 5 that shakes is installed in one side that first installation cavity lateral wall 61 deviates from installation cavity 60.

The stop piece 94 is in sliding fit with the sliding groove 66, a first end of the stop piece 94 is installed on the vibration generating barrel assembly 5, a second end of the stop piece 94 penetrates through the sliding groove along the Y direction and extends into the installation cavity 60, the fine adjustment screw rod is installed on the side wall 62 of the second installation cavity, a limiting pad head 90 is further arranged on the fine adjustment screw rod, the limiting pad head 90 is located in the installation cavity 90, the fine adjustment knob assembly is arranged at one end, away from the installation cavity 60, of the fine adjustment screw rod, the surface, away from one side of the side wall 62 of the second installation cavity, of the limiting pad head 90 is a limiting portion, the stop piece 94 and the limiting portion of the limiting pad head 90 are arranged in the Z direction in a relative mode, the stop piece 94 is matched with the limiting portion of the limiting pad head 94 to limit displacement, in the Z direction, of the vibration generating barrel assembly 5 relative to the lifting support 6, and the limiting pad head 90 is arranged close to the side wall 62 of the second installation cavity relative to the stop piece 94.

The stopper 94 is provided with a speed reduction switch 942 and an ultrasonic switch 944, and the vernier lever assembly is also provided with a trigger portion. The speed reduction switch 942 is electrically connected to the buffer mechanism 8, the ultrasonic switch 944 is connected to the main control circuit, and the trigger section sequentially triggers the speed reduction switch and the ultrasonic switch to start the buffer mechanism and the ultrasonic wave.

Optionally, the stop piece can set up on the fine setting lead screw, the fine setting lead screw is worn to locate in spacing seat (not shown in the figure) and fixing base (not shown in the figure), spacing seat can be dismantled with lifting support and be connected, the fixing base can be dismantled with a section of thick bamboo subassembly that shakes and be connected, the fine setting lead screw can be followed the Z direction for spacing seat and removed, fine setting lead screw and rotatable being connected of fixing base, fine setting lead screw and fixing base spacing cooperation on the Z direction, rotatory fine setting knob subassembly rotates the fine setting lead screw, the stop piece removes along the Z direction for the fine setting lead screw, adjust the down stroke of a section of thick bamboo subassembly that shakes. When the stop piece is abutted to the upper surface of the limiting seat during operation, the vibration generating drum driving mechanism 7 stops operating.

Referring to fig. 4 to fig. 7 in combination with fig. 10, a positioning column 91 extending along the Z direction is disposed at a first end of the fine tuning screw, the triggering portion is disposed at an upper end of the positioning column 91, the fine tuning knob assembly is disposed at a second end of the fine tuning screw, the positioning column 91 is made of metal, the positioning column 91 and the fine tuning screw are integrally formed, a limiting pad 90 is disposed between the positioning column 91 and the fine tuning screw, and the limiting pad 90 is sleeved outside the positioning column 91 and detachably fixed to the fine tuning screw in a threaded connection manner.

The side of the stopper 94 far away from the limiting cushion head 90 is provided with a mounting bracket 940, the speed reducing switch 942 and the ultrasonic switch 944 are arranged on the side of the mounting bracket 941 far away from the stopper 94 at intervals along the Z direction, an isolating gasket 943 is arranged between the speed reducing switch 942 and the ultrasonic switch 944, the speed reducing switch 942 and the ultrasonic switch 944 are both proximity switches, and the speed reducing switch 942 is close to the stopper 94 relative to the ultrasonic switch 944.

Be provided with first spacing hole 940 on the stopper 94, be provided with the spacing hole 9410 of second on the installing support 941, be provided with the spacing hole 9430 of third on the spacer 943, be provided with first response hole 9420 on the speed reduction switch 942, be provided with second response hole 9440 on the ultrasonic switch 944, first response hole 9420, second response hole 9440, first spacing hole 940, the spacing hole 9410 of second, the setting of the coaxial line of the spacing hole 9430 of third and reference column 91, the diameter of first spacing hole 940 is less than the diameter of spacing pad head 90, make stopper 94 can the butt on spacing pad head 90. During operation, the vibration generating cylinder driving mechanism 7 drives the vibration generating cylinder assembly 5 to descend along the Z direction, and the first sensing hole 9420, the second sensing hole 9440 and the three limiting holes can move along the Z direction, so that the positioning column 91 sequentially passes through the first sensing hole 9420 and the second sensing hole 9440.

The working method of this embodiment comprises the steps of:

the first step is as follows: the handpiece driving mechanism drives 3 the handpiece assembly 4 to descend to a first preset position along the Z direction.

The second step: the vibration cylinder driving mechanism 7 drives the vibration cylinder assembly 5 to move in the Z direction to approach an object to be welded (not shown in the figure).

The third step: when the trigger part on the positioning column 91 passes through the first sensing hole 9420, the buffer mechanism 8 controls the air cylinder exhaust reversing of the vibration cylinder driving mechanism 7, so that the vibration cylinder assembly 5 is decelerated to be close to an object to be welded.

The fourth step: the vibratory barrel assembly 5 continues to move and ultrasonic waves are initiated when the trigger on the alignment post 91 passes through the second sensing hole 9440.

The fifth step: the motion of the vibratory cylinder assembly 5 continues and the vibratory cylinder drive mechanism 7 stops when the stop 94 abuts the stop pad 90.

And a sixth step: after the welding is completed, the vibration drum assembly 5 returns to the first preset position.

When the same product is welded in a large batch, the second step to the sixth step can be repeated, so that automatic production is realized, and the production efficiency is improved.

Second embodiment of speed reduction switch, ultrasonic switch and ultrasonic welder:

referring to fig. 8 and 9, in the present embodiment, the speed reduction switch 942 and the ultrasonic switch 944 are both proximity switches, the triggering portion is a surface of the side of the limiting pad 90 facing the stopper, the speed reduction switch 942 and the ultrasonic switch 944 are sequentially arranged at intervals along the X direction, the speed reduction switch 942 and the ultrasonic switch 944 are both inserted into the stopper 94, and the speed reduction switch 942 and the ultrasonic switch 944 are both arranged opposite to the triggering portion on the limiting pad 90 in the Z direction. The ultrasonic switch 944 and the deceleration switch 942 have an ultrasonic sensing distance and a deceleration sensing distance, respectively.

The working method of this embodiment comprises the steps of:

The second step: the vibration cylinder driving mechanism 7 drives the vibration cylinder assembly 5 to move in the Z direction to approach an object to be welded (not shown in the drawings).

The third step: when the distance between the trigger part on the speed reducing switch 942 and the limiting pad 90 meets the speed reducing induction distance, the buffer mechanism 8 controls the air cylinder of the vibration generating drum driving mechanism 7 to exhaust and change direction, so that the vibration generating drum assembly 5 descends in a speed reducing way.

The fourth step: the vibration drum assembly 5 continues to move, and when the distance between the ultrasonic switch 944 and the limit pad head 90 meets the ultrasonic induction distance, ultrasonic waves are started;

the fifth step: the vibration-generating drum assembly 5 continues to move, and when the stop member 94 abuts on the limiting pad head 90, the vibration-generating drum driving mechanism 7 stops working.

Alternatively, the speed reduction switch 942 and the ultrasonic switch 944 may be conventional switches such as micro switches.

Referring to fig. 10 to 12, in this embodiment, a connection hole 620 extending along the Z direction is formed in the second mounting cavity side wall 62, a fine adjustment mounting seat 95 is detachably mounted in the connection hole 620, a threaded hole 950 is formed in the center of the fine adjustment mounting seat 95, the fine adjustment screw rod includes a screw rod portion 96 and a sliding rod portion 97 axially connected along the fine adjustment screw rod, a position limiting pad 90 is disposed at one end of the screw rod portion 96 far away from the sliding rod portion 97, and the screw rod portion 96 is in threaded connection with the threaded hole 950.

The fine adjustment knob assembly comprises a fine adjustment knob 93 and a locking component 92, the fine adjustment knob 93 is arranged at one end, far away from the screw rod portion 96, of the sliding rod portion 97, the fine adjustment knob 93 is fixedly connected with the sliding rod portion 97 in a detachable mode, the locking component 92 is sleeved outside the screw rod portion 96 and in threaded connection with the screw rod portion 96, and the locking component 92 can move along the axial direction of the fine adjustment screw rod relative to the fine adjustment knob 93.

Locking part 92 includes along the locking sleeve 920 and the locking knob 921 of axial connection, is formed with mounting cavity 932 in the fine setting knob 93, and locking sleeve 920 sets up in the mounting cavity, and the locking knob lies in the mounting cavity 932 and lies in between fine setting knob 93 and second mounting cavity lateral wall 62 on the axial. The locking sleeve 920 is provided with a first graduation 922 arranged along the axial direction on the outer peripheral wall. The locking knob 93 is movable in the Z direction relative to the second mounting chamber sidewall 62 to abut against a lower surface of the second mounting chamber sidewall 62.

Fine setting mount pad 95 includes first installation department 952 and the second installation department 953 along fine setting lead screw axial connection, first installation department 952 butt deviates from the surface of fine setting knob subassembly one side at lifting support second installation cavity lateral wall 62, second installation department 953 wears to establish in connecting hole 620, the interval is provided with two first mounting holes 951 on the first installation department 952, it is provided with two second mounting holes (not shown in the figure) to correspond on the second installation cavity lateral wall 62, use the fastener to pass first mounting hole 951 and second mounting hole with fine setting mount pad 95 fixed mounting on the second installation cavity lateral wall. The connecting holes with various different diameters are convenient to use and are universal through the fine adjustment mounting seat.

One side of the fine adjustment knob 93 close to the lifting support 6 is formed with an inclined table portion 930 extending along the fine adjustment knob circumference, and along the axial direction of the fine adjustment screw rod, from the end of the fine adjustment knob 93 to the direction far away from the second mounting cavity side wall 62, the outer diameter of the inclined table portion 930 is gradually increased, and the outer surface of the inclined table portion 930 is provided with a second scale mark 931 arranged along the fine adjustment knob 93 circumference.

Alternatively, the attachment hole 620 is a threaded hole, and the stem portion 96 is directly threadedly coupled to the attachment hole 620.

The locking component 92 is provided with a counter bore 98 on the upper surface close to the second mounting cavity side wall 62, the counter bore 98 and the fine adjustment mounting seat 95 are arranged oppositely along the axial direction of the locking component 92, and the diameter of the counter bore 98 is larger than the outer diameter of the fine adjustment mounting seat 95.

The embodiment further provides that the use method of the fine adjustment travel component comprises the following steps:

the first step is as follows: the fine adjustment knob 93 is rotated forward so that the fine adjustment stroke mechanism moves a first stroke in the Z direction, and the first stroke is greater than a design stroke (the design stroke is a stroke by which the vibration generating cylinder assembly needs to be lowered according to different mold requirements).

The second step: the second stroke of the locking member 92 to be moved is calculated based on the first scale 922 on the locking sleeve 920 and the second scale 931 on the fine adjustment knob 93, and the locking knob 921 is rotated in the opposite direction to move the second stroke.

The third step: reverse rotation of the fine adjustment knob 93 causes the locking knob 921 to abut the surface of the mounting cavity sidewall 6 adjacent the locking knob 921.

Referring to fig. 13 to 16, in the present embodiment, a box bracket 11 is disposed on a side wall of an upright 2 of an ultrasonic welding machine, the box bracket 11 includes a first support plate 110 and a second support plate 111 disposed perpendicular to each other, and the first support plate 110 is detachably mounted on a side wall of the upright 2. Alternatively, the fixing means may be fixed to the upright in the prior art. The top of second backup pad 111 is provided with the first limiting plate 112 of keeping away from stand 2 and the second limiting plate 113 that is close to the stand that is parallel to each other and symmetrical, be formed with the mounting groove 114 that extends along the Y direction between first limiting plate 112 and the second limiting plate 113, be provided with electronic box 10 in the mounting groove 114, install two on the first limiting plate 112 and compress tightly subassembly 13, threaded connection between compress tightly subassembly 13 and the first limiting plate 112, rotatory subassembly 13 that compresses tightly, compress tightly subassembly 13 and can follow the X direction and remove on the lateral wall of butt at electronic box 11, compress tightly subassembly 13 and the cooperation of second limiting plate 113 and press from both sides tight electronic box 11.

The second support plate 111 is provided with a plurality of mounting holes 115, the electronic box support 10 is further provided with a lower computer 12, and the lower computer 12 is detachably mounted at the bottom of the second support plate 111 through the cooperation of fasteners and the mounting holes 115.

A third supporting plate 116 is arranged near the joint of the first supporting plate 110 and the second supporting plate 111, two opposite side walls of the third supporting plate 116 are respectively connected with the first supporting plate 110 and the second supporting plate 111, the first supporting plate 110, the second supporting plate 111 and the third supporting plate 116 are integrally formed, a cavity 117 is defined between the first supporting plate 110, the second supporting plate 111 and the third supporting plate 116, and the cross section of the cavity 117 is triangular. Three board integrated into one piece can effectively promote structural strength.

Optionally, the third supporting plate is a triangular plate, a plurality of third supporting plates are connected between the first supporting plate 110 and the second supporting plate 111, two right-angle sides of the third supporting plate are respectively connected with the first supporting plate 110 and the second supporting plate 111, and the first supporting plate 110, the second supporting plate 111 and the third supporting plate are detachably connected.

Be provided with first damping cushion 119 between second backup pad 111 and the electronic box 10, the electronic box is spaced apart from second backup pad 111 through first damping cushion 119, is provided with second damping cushion 118 on the lateral wall of second limiting plate 113 and electronic box 10 contact, and electronic box 10 is spaced apart from second limiting plate 113 through second damping cushion 118. Through the damping cushion that sets up not only can increase the frictional force between electronic box 10 and the support 11, prevent that electronic box 10 from removing, can slow down the influence of organism vibration to the electronic box simultaneously.

The pressing assembly comprises a pressing knob 130, a screw 131 and a pressing plate 132, the screw 131 penetrates through the first limiting plate 112 and is in threaded connection with the first limiting plate 112, the pressing knob 130 is installed at the first end of the screw 131, the pressing plate 132 is installed at the second end of the screw 131 and is located in the installing groove 114, one side, away from the screw 131, of the pressing plate 132 is inwards recessed to form a cavity 140, a pressing rubber block 133 is installed in the cavity 140, the pressing rubber block 133 comprises an installing portion 1331 and a pressing portion 1330, the installing portion 1331 is installed in the cavity 140 and is identical to the shape of the cavity 140, the pressing portion 1330 protrudes from the end wall, away from the screw 131, of the pressing plate 132 in the axial direction of the screw 131 to the direction away from the screw 131, and the outer diameter of the pressing portion 1330 is equal to the outer diameter of the end wall, away from the pressing knob 130, of the pressing plate 132.

An anti-backlash groove 139 is provided on the inner circumferential wall of the cavity 140, the anti-backlash groove 139 is recessed from the inner circumferential wall of the pressure plate 132 in the radial direction of the pressure plate 132, and the anti-backlash groove 139 extends in the circumferential direction of the pressure plate 132. The cross-sectional area of the cavity 140 increases gradually from the side of the pressure plate 132 closer to the pressing knob 130 to the end farther from the pressing knob 130 in the axial direction of the pressure plate 132.

The pressure plate 132 can rotate along the circumferential direction of the screw 131, a sliding rod 135 extending axially along the screw 131 is fixedly arranged at the second end of the screw 131, the diameter of the sliding rod 135 is smaller than that of the screw 131, a first through hole 137 extending axially along the screw 131 is arranged in the bottom wall of the cavity 140, the pressure plate 132 is sleeved on the sliding rod 135 through the first through hole 137 and can rotate around the central shaft of the sliding rod 135, a threaded hole 1350 coaxial with the screw 131 is arranged in the center of the end wall of the sliding rod 135 close to one side of the cavity 140, a bolt 134 is installed in the threaded hole 1350, the bolt head of the bolt 134 is located in the cavity 140, the diameter of the bolt head is larger than that of the first through hole 137, and the pressure plate 132 is limited axially on the sliding rod 135 through the cooperation of the bolt head and the screw 131. Alternatively, a bearing may be provided in the first through hole, and the slide rod 135 may be mounted in the bearing.

In this scheme, a boss 136 is further arranged on the bottom wall of the cavity 140, the boss 136 protrudes from the bottom wall of the pressure plate 132 to the direction away from the screw 131 along the axial direction of the screw 131, the first through hole 137 penetrates through the boss 136, the diameter of the bolt head is smaller than the outer diameter of the boss 136, a second through hole 138 is arranged in the compression rubber block 133, and the boss 136 extends into the second through hole 138 and is in interference fit with the second through hole 138.

It should be noted that the above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept also fall within the protection scope of the present invention.

Claims

1. The fine adjustment stroke assembly of the ultrasonic welding machine comprises a fine adjustment screw rod, a fine adjustment knob assembly and a fixed seat, wherein the fine adjustment screw rod is in threaded connection with the fixed seat, the fine adjustment knob assembly is arranged at one end of the fine adjustment screw rod, and a limiting part is further arranged on the fine adjustment screw rod;

the method is characterized in that:

the fine adjustment knob assembly comprises a fine adjustment knob and a locking component;

the fine adjustment knob is fixedly connected with the fine adjustment screw rod, and the locking component is in threaded connection with the fine adjustment screw rod and can move along the axial direction of the fine adjustment screw rod.

2. The fine travel assembly of an ultrasonic welding machine according to claim 1, characterized in that:

the fine adjustment knob is internally provided with a mounting cavity, the locking component comprises a locking sleeve and a locking knob which are connected along the axial direction, the locking sleeve is positioned in the mounting cavity, and the locking knob is positioned outside the mounting cavity and is positioned between the fine adjustment knob and the fixed seat in the axial direction.

3. The fine travel assembly of an ultrasonic welding machine of claim 2, wherein:

the periphery wall of the locking sleeve is provided with a first scale mark arranged along the axial direction.

4. The fine adjustment stroke assembly of an ultrasonic welding machine according to claim 2 or 3, characterized in that:

the fine setting lead screw includes along lead screw portion and slide bar portion that fine setting lead screw axial is connected, lead screw portion with fixing base threaded connection, the locking sleeve with slide bar portion sliding connection, the fine setting knob with lead screw portion threaded connection.

5. The fine travel assembly of an ultrasonic welding machine according to any one of claims 1 to 3, characterized in that:

the fine adjustment screw rod is matched with the threaded hole, and the limiting part and the fine adjustment knob assembly are respectively positioned on two sides of the fine adjustment mounting seat.

6. The fine travel assembly of an ultrasonic welder according to claim 5, characterized in that:

the locking part is provided with a counter bore on the end wall close to one side of the fixed seat, the counter bore and the fine adjustment mounting seat are oppositely arranged along the axial direction of the locking part, and the diameter of the counter bore is larger than the outer diameter of the fine adjustment mounting seat.

7. The fine adjustment stroke assembly of an ultrasonic welding machine according to any one of claims 1 to 3, characterized in that:

the outer surface of one side of the fine adjustment knob, which is close to the fixed seat, is provided with second scale marks arranged along the circumferential direction of the fine adjustment knob.

8. The fine travel assembly of an ultrasonic welder according to claim 7, characterized in that:

the fine tuning knob is close to the one end of fixing base is formed with the sloping platform portion, along the axial of fine tuning knob, certainly the tip of fine tuning knob is to keeping away from the direction of fixing base, the external diameter of sloping platform portion increases gradually, the second scale mark is located the surface of sloping platform portion.

9. Ultrasonic welding machine, including head assembly, its characterized in that:

the fine adjustment stroke assembly of the ultrasonic welding machine according to any one of claims 1 to 8, wherein the handpiece assembly comprises a lifting support, a vibration generating drum assembly and a vibration generating drum driving mechanism, the vibration generating drum driving mechanism drives the vibration generating drum assembly to move along a first direction, and the vibration generating drum assembly and the vibration generating drum driving mechanism are both arranged on the lifting support;

the fixed seat and the lifting bracket are integrally formed; or

The fixing base with a section of thick bamboo subassembly detachable of shaking is connected, detachable is connected with spacing seat on the lifting support, spacing seat is located spacing portion with between the fixing base, fine setting lead screw slidable wears to locate in the spacing seat.

10. Method of use, characterized in that it is applied to the fine adjustment travel assembly of an ultrasonic welder according to claim 7 or 8, comprising the following steps:

the first step is as follows: the fine adjustment knob is rotated in the forward direction, so that the fine adjustment stroke mechanism moves for a first stroke along a first direction, and the first stroke is larger than the designed stroke;

the second step is that: calculating a second section of stroke of the locking component needing to be moved according to the first scale on the locking component and the second scale on the fine adjustment knob, and reversely rotating the locking component to move the second section of stroke;

the third step: and reversely rotating the fine adjustment knob to enable the locking part to abut against the lower surface of the fixed seat.