CN213224719U

CN213224719U - Compact double-guide-rail ultrasonic metal welding machine

Info

Publication number: CN213224719U
Application number: CN202022119609.4U
Authority: CN
Inventors: 李广杰
Original assignee: Branson Ultrasonics Shanghai Co Ltd
Current assignee: Branson Ultrasonics Shanghai Co Ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-05-18
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to a compact double guide rail ultrasonic metal welding machine, include: cylinder (1), welding triplex group (2), linear guide subassembly (7), frame (8) and triplex group staple bolt (9), welding triplex group (2) install in triplex group staple bolt (9), linear guide subassembly (7) have two, the symmetry sets up in triplex group staple bolt (9) both sides respectively to link to each other with the curb plate of frame (8), triplex group staple bolt (9) are along linear guide subassembly (7) up-and-down motion under the drive of cylinder (1), and then drive welding triplex group (2) up-and-down motion. Compared with the prior art, the utility model has the advantages of structural stability is stronger, and the welding area atress is more even, and welding quality is higher, and the range of application is wider.

Description

Compact double-guide-rail ultrasonic metal welding machine

Technical Field

The utility model relates to an ultrasonic metal welding technical field, concretely relates to compact double guide rail ultrasonic metal welding machine.

Background

The ultrasonic metal welding technology has been widely applied due to the advantages of high welding speed, high welding strength, cleanness, no pollution, no need of adding welding flux and the like, and the welding principle is that high-frequency vibration mechanical energy converted from electric energy is transmitted to the metal surface to be welded, the two metal surfaces are mutually rubbed under the condition of pressurization to improve the activation energy of surface atoms, and the metal atoms are mutually fused under the action of pressure. The working principle of the mainstream ultrasonic metal welding machine on the market at present is as follows: the cylinder drives the three-link group (welding head, amplitude modulator, transducer and amplitude modulator fixing sleeve) fixed in the hoop to vertically descend along the guide rail, when the system reaches a set time sequence, the ultrasonic welding is triggered to weld the workpiece, and when a preset welding condition is reached, the welding is stopped. Ultrasonic wave metal welding equipment is mainly for single guide rail direction because the restriction of staple bolt structure on the current market, and the welding degree of depth mainly utilizes mechanical spacing screw to adjust and control, and the support base of welding usefulness all is fixed in the equipment openly mostly, and the side direction is fixed on the front bezel. During single guide rail direction, under the effort of cylinder, the guide rail is owing to there is certain clearance itself, and staple bolt atress often leans on one side, can not act on the welding zone completely, causes the welding process, and structural stability is not enough and welding depth measurement and actual welding depth error are great, seriously influences welding quality control. At present, high-precision force sensors and displacement sensors on mainstream equipment in the market are relatively lost, and the welding equipment cannot realize closed-loop control, so that the control of the welding quality is influenced. The mechanical limiting screw further causes that the welding depth can not be accurately controlled due to low precision, and the consistency of the welding quality can not be guaranteed. The model on the market at present mainly is horizontal welding machine, and its welding support base is mostly fixed on the front bezel, and when welding pressure was great, positive front bezel is because the base side direction installation, easily produces deformation, and is higher to the intensity requirement of front bezel, simultaneously because the space between bonding tool and the base is limited, can influence practical application's application range to a certain extent.

Utility model CN207577658U discloses a fixed ultrasonic wave metal spot welder of double guide rail, including five major parts of double guide rail, double cylinder, main part fixed block, bonding tool, bottom sprag subassembly and big bottom plate. The main body fixing block is connected with the double cylinders and driven by the double cylinders to reciprocate on the double guide rails; the welding head is connected with the main body fixing block through a screw rod screw; the bottom support component comprises an anvil, a fixing block and a supporting plate from top to bottom in sequence, and is fixed with the large bottom plate through screws. The metal spot welding machine drives the main body mechanism to move through the double cylinders and the double guide rails, so that the welding head moves up and down, and the bottom support plays a role in fixing a workpiece, so that the whole welding process is stable and stable. The utility model discloses a fixed ultrasonic wave metal spot welder of two guide rails has improved the motion steady to a certain extent, has improved welding quality stability new, but this spot welder adopts two guide rail structures, and is higher to machined part cooperation precision requirement, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compact double guide rail ultrasonic metal welding machine in order to overcome the defect that above-mentioned prior art exists, structural stability is stronger, and the welding area atress is more even, and welding quality is higher, and the range of application is wider.

The purpose of the utility model can be realized through the following technical scheme: a compact dual rail ultrasonic metal welding machine comprising: the welding three-linkage assembly is arranged in the three-linkage assembly hoop and is characterized in that the two linear guide rail assemblies are symmetrically arranged on two sides of the three-linkage assembly hoop respectively and are connected with side plates of the rack, and the three-linkage assembly hoop moves up and down along the linear guide rail assemblies under the driving of the cylinder so as to drive the welding three-linkage assembly to move up and down. The symmetrical arrangement of the double-guide-rail assembly ensures the transverse structural stability of the welding triple set in the welding process and ensures that the acting force of the cylinder acts on a welding area more uniformly.

The linear guide rail assemblies comprise slide rails and slide blocks, the slide rails of the two linear guide rail assemblies are symmetrically arranged on two sides of the hoop of the triple group respectively, and the slide blocks of the two linear guide rail assemblies are arranged on two side plates of the rack respectively.

The three-linkage-group hoop is divided into three sections, namely a front section, a middle section and a rear section, the front section and the rear section are of semi-free structures, the welding three-linkage group is fixed in the front and back direction through screw locking, and the middle section is of a fixed structure and used for mounting a linear guide rail assembly. The anchor ear of the triple group is designed in a sectional mode, the two ends of the anchor ear are fixedly welded with the triple group, the double guide rails are fixed in the middle of the anchor ear and matched with the double guide rails, the axial stability and the radial stability of the triple group are ensured, the fixation of the guide rails is realized, and the rigidity required by the installation of the guide rails is also ensured.

The cylinder is installed on the top plate of the frame.

Furthermore, the cylinder is connected with a pressure sensor, and the pressure sensor is connected with the triple hoop.

Furthermore, a transition plate is arranged between the pressure sensor and the anchor ear of the triple group, the purpose of the transition plate is to fix a node supporting component, one end of the node supporting component is fixed on the transition plate to ensure that the node supporting component and the welding triple group move synchronously, and the other end of the node supporting component is supported at a node of a welding head in the welding triple group to reduce deformation caused by reaction force applied to the welding head in the welding process.

And a grating ruler is arranged on the rear side of the triple hoop. The grating ruler is a high-precision grating ruler, the whole welding process forms a full closed loop control by the combined use of the high-precision grating ruler and the pressure sensor, and the welding quality control is greatly improved.

Welding head below in the welding triplex sets up the welding support base, will wait to weld the work piece setting and carry out ultrasonic bonding on the welding support base, keeps the welding part of welding support base just to the welding head in the welding triplex, and the concrete mounted position of welding support base can have multiple condition, if:

the frame on be provided with the frame front bezel, be equipped with the welding support base on this frame front bezel, the welding part of this welding support base keeps aligning with the welding part of the bonding tool in the welding triplex.

Or a bottom plate is arranged below the rack, a welding support base is arranged on the bottom plate, and the welding part of the welding support base is aligned with the welding part of the welding head in the welding triple group.

When pressure is greater or there is a space requirement, the welding support base is arranged on the bottom plate, the structure is more stable, the bearing capacity is stronger, the structure is more compact, and the application range is expanded.

Compared with the prior art, the utility model has the advantages of it is following:

1. the double guide rails are symmetrically arranged and fixed, so that the transverse structural stability of the welding three-connection group in the welding process is ensured, and the acting force of the air cylinder is ensured to act on a welding area more uniformly;

2. the three-linkage anchor ear is designed in a sectional mode, two ends of the three-linkage anchor ear are fixedly welded with the three-linkage anchor ear, and the middle area is fixed with the guide rail, so that the axial stability of the welded three-linkage anchor ear is ensured, and the rigidity required by the installation of the guide rail is also ensured;

3. the combined use of the high-precision grating ruler and the pressure sensor enables the whole welding process to form a full closed-loop control, thereby greatly improving the welding quality control;

4. the welding support base is provided with two fixing modes of side mounting and bottom plate mounting, and the application range is expanded.

Drawings

FIG. 1 is a drawing showing the combination of a welding triple set, a triple set hoop and a double linear guide rail assembly;

FIG. 2 is a schematic view of a triple hoop structure;

FIG. 3 is a cross-sectional view of a welded triad;

fig. 4 is a main view of the compact type double-rail ultrasonic metal welding machine of embodiment 2 of the present invention;

FIG. 5 is a side view of the compact dual rail ultrasonic metal welding machine of embodiment 2 of the present invention;

FIG. 6 is a side sectional view of the compact dual rail ultrasonic metal welding machine of embodiment 2 of the present invention;

FIG. 7 is a side view of a compact dual rail ultrasonic metal welding machine of embodiment 3 of the present invention;

in the figure: 1-cylinder, 2-welding triad, 201-transducer, 202-modulator fixed sleeve, 203-modulator, 204-welding head, 3-pressure sensor, 4-grating ruler, 5-welding support base, 6-node support component, 7-linear guide rail component, 701-slide rail, 702-slide block, 8-frame, 801-right side plate, 802-top plate, 803-left side plate, 9-triad hoop, 901-front section, 902-middle section, 903-rear section, 10-transition plate, 11-bottom plate and 12-frame front plate.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples.

Example 1

Corresponding welding parameters are set in a welding system for different welding applications, corresponding triple groups are assembled, the welding triple group 2 (the transducer 201, the amplitude modulator 203, the amplitude modulator fixing sleeve 202 and the welding head 204) is installed in a triple group hoop 9, the triple group hoop 9 is locked through screws to fix the welding triple group 2, and the welding part of the support base 5 and the welding part of the welding head 204 are kept aligned.

The welded piece is placed between the welding support base 5 and the welding head 204, welding is started, the air cylinder 1 drives the pressure sensor 3, and the three-linkage group hoop 9 and the welding three-linkage group 2 are driven to move downwards along the linear guide rail assembly 7. Because the high-precision grating ruler 4 is fixed at the rear side of the hoop 9 of the triple group, when the sliding rail 701 descends, the high-precision grating ruler 4 is driven to start to move downwards, and at the moment, the high-precision grating ruler 4 starts to measure descending displacement and communicates with a welding system in real time.

When the welding triple unit 2 is lowered to be in contact with a welding part, the air cylinder 1 continues to push the welding triple unit 2 to descend, one end of the pressure sensor 3 is connected with the air cylinder 1, the other end of the pressure sensor is connected with the upper side of the hoop 9 of the triple unit, the pressure sensor 3 starts to bear force, pressure measurement starts to communicate with a welding system in real time, and actual welding pressure can read records in real time.

And (3) triggering the weldment to start welding by the ultrasound according to triggering conditions (such as displacement signals of a grating ruler and pressure signals of a pressure sensor) set by the system, and stopping welding when the ultrasound reaches welding parameters set by welding. After welding, the cylinder 1 drives the welding triple unit 2 to return to the initial position along the linear guide rail assembly 7, and the whole welding process is finished. The whole welding system forms a full closed-loop mode, and each welding parameter data is accurately controlled and can be monitored and recorded in real time, so that the welding quality and the welding consistency are greatly improved.

Example 2

A compact type double-guide-rail ultrasonic metal welding machine comprises a cylinder 1, a welding triple group 2, a pressure sensor 3, a high-precision grating ruler 4, a welding support base 5, a node support assembly 6, a linear guide rail assembly 7, a frame 8, a triple group hoop 9, a transition plate 10, a bottom plate 11 and a frame front plate 12.

As shown in fig. 1, the welding triple group 2 is installed in the hoop 9 of the triple group, two linear guide assemblies 7 are respectively and symmetrically arranged at two sides of the hoop 9 of the triple group, each linear guide assembly 7 comprises a slide rail 701 and a slide block 702, the slide rail 701 is installed on the hoop 9 of the triple group, the slide blocks 702 are fixed on two side plates of the rack 8, and the slide rail 701 and the slide blocks 702 can move relatively.

As shown in fig. 2, the triple hoop 9 is a cubic structure, a circular channel is provided in the middle for installing and welding the triple hoop 2, the triple hoop 9 is divided into three sections, which are respectively a front section 901, a middle section 902 and a rear section 903, the front section 901 and the rear section 903 are semi-free structures, the welding triple hoop 2 is fixed back and forth by locking screws, the middle section 902 is a fixed structure for installing the linear guide rail assembly 7, and the sliding rails 701 of the two linear guide rail assemblies 7 are respectively symmetrically installed on the middle section 902 of the triple hoop 9.

As shown in fig. 3, the welding triad 2 includes a transducer 201, a modulator 203, a modulator fixing sleeve 202 and a welding head 204, the transducer 201, the modulator 203 and the welding head 204 are connected in sequence, the transducer 201, the modulator 203 and the welding head 204 are fixedly connected by screws, the modulator fixing sleeve 202 is arranged on the modulator 203, the outer diameter of the modulator fixing sleeve 202 is the same as the inner diameter of a circular channel in the middle of the triad hoop, and the welding triad 2 is mounted in the triad hoop 9 through the modulator fixing sleeve 202. In operation of the welding triad 2, the transducer 201 converts electrical energy into mechanical energy which is transmitted to the welding area via the amplitude modulator 203 and the welding head 204.

As shown in fig. 4 to 6, the triple-group hoop 9 is installed between the left side plate 803 and the right side plate 801 of the rack 8, and the two linear guide rail assemblies 7 are respectively symmetrically arranged at two sides of the triple-group hoop 9 and connected with the left side plate 803 and the right side plate 801 of the rack 8 through the sliding blocks 702.

The cylinder 1 is installed on the roof 802 of frame 8, and pressure sensor 3 one end is connected with cylinder 1, and the other end is connected with the upper end of triplex group staple bolt 9. A transition plate 10 is arranged between the pressure sensor 3 and the triple group hoop 9. The transition plate 10 is provided with a node support assembly 6, and the node support assembly 6 is supported at a node of a welding head 204 of the welding triad 2. Different from ultrasonic plastic welding, in ultrasonic metal welding application, the stress direction of the welding head 204 is often perpendicular to the ultrasonic propagation direction, the welding head is easy to bend and deform, the effectiveness of welding pressure is influenced, and the node supporting assembly 6 is arranged to support the welding head 204 in a pressure bearing mode, so that the welding pressure can be applied to a welding workpiece more uniformly and effectively when the welding machine works. The nodal position of the horn is typically at an axial distance of about one quarter of the wavelength (of the ultrasonic wave propagating in the horn) from the forward edge of the horn as analyzed by FEM, where the horn does not vibrate and no additional securing mechanism is required.

The rear side of the triple group hoop 9 is provided with a high-precision grating ruler 4.

The frame 8 is provided with a frame front plate 12, the frame front plate 12 is provided with a welding support base 5, the welding part of the welding support base 5 is aligned with the welding part of the welding head 204 of the welding triad 2, and a bottom plate 11 is arranged below the frame 8.

During operation, for different welding applications, corresponding welding parameters are set in a welding system, the three-linkage welding set 2 is installed in the three-linkage hoop 9, the three-linkage hoop 9 is locked through screws to fix the three-linkage welding set 2, and the welding portion of the welding support base 5 and the welding portion of the welding head 204 are kept aligned.

The welded piece is placed between the welding support base 5 and the welding head 204, welding is started, and the air cylinder 1 drives the pressure sensor 3, the anchor ear 9 of the triple group, the two slide rails 701 and the welding triple group 2 to stably move downwards. Because the high-precision grating ruler 4 is fixed at the rear side of the hoop 9 of the triple group, when the sliding rail 701 descends, the high-precision grating ruler 4 is driven to start to move downwards, and at the moment, the high-precision grating ruler 4 starts to measure descending displacement and communicates with a welding system in real time.

Example 3

A compact double-rail ultrasonic metal welding machine, as shown in FIG. 7, is provided with a welding support base 5 on a base plate 11, the welding portion of the welding support base 5 is kept aligned with the welding portion of a welding head 204 of a welding triad 2, and the rest of the component arrangement is the same as that of example 2.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A compact dual rail ultrasonic metal welding machine comprising: cylinder (1), welding triplex group (2), linear guide subassembly (7), frame (8) and triplex group staple bolt (9), welding triplex group (2) install in triplex group staple bolt (9), its characterized in that, linear guide subassembly (7) have two, the symmetry sets up in triplex group staple bolt (9) both sides respectively to link to each other with the curb plate of frame (8), triplex group staple bolt (9) are along linear guide subassembly (7) up-and-down motion under the drive of cylinder (1), and then drive welding triplex group (2) up-and-down motion.

2. The compact double-guide ultrasonic metal welding machine according to claim 1, wherein the linear guide assemblies (7) comprise slide rails (701) and slide blocks (702), the slide rails (701) of the two linear guide assemblies (7) are respectively and symmetrically arranged at two sides of the triple-combined hoop (9), and the slide blocks (702) of the two linear guide assemblies (7) are respectively arranged on two side plates of the machine frame (8).

3. The compact double-guide ultrasonic metal welding machine according to claim 1 is characterized in that the triple-link hoop (9) is divided into three sections, namely a front section (901), a middle section (902) and a rear section (903), the front section (901) and the rear section (903) are of semi-free structures, the welding triple-link (2) is fixed back and forth through locking of screws, and the middle section (902) is of a fixed structure and used for installing the linear guide assembly (7).

4. The compact double track ultrasonic metal welder according to claim 1, characterized in that said cylinder (1) is mounted on the top plate of the frame (8).

5. The compact double-guide ultrasonic metal welding machine according to claim 4, characterized in that the air cylinder (1) is connected with a pressure sensor (3), and the pressure sensor (3) is connected with a triple-group hoop (9).

6. The compact double track ultrasonic metal welding machine of claim 5, characterized in that a transition plate (10) is arranged between the pressure sensor (3) and the triple hoop (9).

7. The compact dual track ultrasonic metal welder according to claim 6, characterized in that said transition plate (10) is provided with a nodal support assembly (6), said nodal support assembly (6) being supported at a nodal point of a welding head (204) in the welding triad (2).

8. The compact double-guide rail ultrasonic metal welding machine according to claim 1, characterized in that a grating ruler (4) is arranged at the rear side of the triple-group hoop (9).

9. The compact dual track ultrasonic metal welder of claim 1, characterized in that said frame (8) is provided with a frame front plate (12), said frame front plate (12) being provided with a welding support base (5), the welding portion of said welding support base (5) being maintained in alignment with the welding portion of the welding heads (204) of the welding triad (2).

10. The compact dual track ultrasonic metal welder according to claim 1, characterized in that a base plate (11) is arranged below said frame (8), said base plate (11) being provided with a welding support base (5), the welding portion of said welding support base (5) being kept aligned with the welding portion of the welding heads (204) of the welding triad (2).