Ultrasonic welding tool positioning structure

Abstract

The ultrasonic welding tool positioning structure comprises a positioning structure body, the positioning structure body comprises a supporting frame and a welding head, fixing holes are formed in the two ends of the supporting frame, and a second inner threaded hole is formed in the top end of the supporting frame; by designing the quick positioning mechanism, when the welding head is pre-assembled on the welding equipment, the welding head is not screwed tightly, the surface of the fixed binding face is directly attached to the side face of the bottom die, the welding head is visually parallel to the bottom die, the welding head descends to the height interval range marked by the positioning block, and then the positioning block and the bottom die are fixedly installed; the welding head is rotated by a hand to be attached to the positioning attaching face on the positioning block, installation and positioning of the positioning tool are completed at a time, repeated correction is not needed, and therefore one welding machine is compatible with multiple welding positioning tools, positioning and installation are more convenient due to frequent replacement, and convenience and accuracy of positioning of the welding head by the positioning structure body are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of positioning structures, and particularly relates to a positioning structure for an ultrasonic welding tooling. Background Art

[0002] An ultrasonic welding tooling (also known as an ultrasonic mold or fixture) is a special device used to fix and position welding parts and transmit vibration energy, and ensures the welding quality by providing a stable support structure. The ultrasonic welding tooling generally includes three parts: a welding head, a bottom mold, and a support frame. The installation of the welding head requires precise positioning and installation, usually through a positioning structure. The existing positioning structure is a positioning mechanism used for positioning and installing the welding head on an ultrasonic welding device;

[0003] There is no positioning structure for the existing tooling welding head and bottom mold to control the rotation of the welding head relative to the bottom mold. The bottom mold is positioned on the welding table through the pin holes on the support frame. The angle of the welding head relative to the bottom mold can only be identified by the naked eye. If the angle is deviated, it will affect the welding quality. If a welding machine is compatible with multiple sets of welding positioning toolings and the toolings are frequently replaced, then the angle of the welding head needs to be manually rotated again and again for calibration, resulting in cumbersome multiple calibration operations and even unable to achieve accurate calibration effects, thus affecting the convenience and accuracy of the positioning structure for positioning the ultrasonic welding tooling. For this reason, the present invention proposes a positioning structure for an ultrasonic welding tooling. Summary of the Invention

[0004] The purpose of the present invention is to provide a positioning structure for an ultrasonic welding tooling to solve the problem proposed in the above background art that the angle of the welding head relative to the bottom mold can only be identified by the naked eye. If the angle is deviated, it will affect the welding quality. If a welding machine is compatible with multiple sets of welding positioning toolings and the toolings are frequently replaced, then the angle of the welding head needs to be manually rotated again and again for calibration, resulting in cumbersome multiple calibration operations and even unable to achieve accurate calibration effects.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A positioning structure for an ultrasonic welding tooling, including a positioning structure main body. The positioning structure main body includes a support frame and a welding head. Fixing holes are opened at both ends of the support frame, and a second internal thread hole is opened at the top end of the support frame. The following are also provided on the positioning structure main body:

[0006] A quick positioning mechanism, and this quick positioning mechanism includes a positioning component arranged at the connection of the support frame and the welding head. Fitting components are arranged at both inner ends of the positioning component, and a fixed installation component is arranged at the bottom end of the positioning component;

[0007] A support and clamping mechanism, and this support and clamping mechanism includes fixed support components arranged at both inner surfaces of the positioning component, and a precise clamping component is arranged at the top end of the fixed support component.

[0008] Preferably, the positioning component includes a bottom mold fixedly installed on the upper surface of the support frame, and a positioning block is arranged on one side of the bottom mold.

[0009] Preferably, the fitting component includes two positioning and fitting surfaces integrally formed at one end inside the positioning block, and the surface of the positioning and fitting surface is in close contact with the surface of the welding head. At the other end inside the positioning block, two fixed fitting surfaces are formed, and the surface of the fixed fitting surface is in close contact with the surface of the bottom mold.

[0010] Preferably, the fixed installation component includes through holes opened at both ends of the bottom of the positioning block, a fixed bolt is snap-fitted inside the through hole, and first internal threaded holes are opened at both ends on one side of the bottom mold.

[0011] Preferably, the end of the fixed bolt is threadedly connected to the inside of the first internal threaded hole, and the positioning block and the bottom mold are rotationally connected by threading the fixed bolt through the through hole.

[0012] Preferably, the fixed support component includes fixed chassis arranged at both ends on the upper surface of the bottom mold. Fixing screws are arranged at the edges of the fixed chassis, and the surface of the fixed chassis and the bottom mold are fixedly connected by the fixing screws. A support top rod is integrally arranged at the middle position on the upper surface of the fixed chassis.

[0013] Preferably, the precise snap-fitting component includes a chuck integrally arranged at the top end of the support top rod. An anti-friction annular cover is integrally arranged on the surface of the chuck, and two positioning and snap holes are opened at the top end of the inner surface of the positioning block.

[0014] Preferably, the chuck is tightly pressed and connected to the inside of the positioning and snap hole through the anti-friction annular cover, and the outer surface of the anti-friction annular cover is in contact with the inner surface of the pre-positioning and snap hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] By designing a quick positioning mechanism, when the welding head is pre-assembled onto the welding equipment, it is not tightened. The surface of the fixed fitting surface is directly fitted to the side of the bottom mold. Visually check that the welding head is parallel to the bottom mold. Lower the welding head to the height range marked by the positioning block. Then, fixedly install between the positioning block and the bottom mold again. Manually rotate the welding head to fit with the positioning and fitting surface on the positioning block, completing the installation and positioning of the positioning tooling at one time without repeated correction. Thus, a welding machine can be compatible with multiple sets of welding positioning toolings, and it is more convenient to frequently replace the positioning and installation, improving the convenience and accuracy of the positioning structure body for positioning the welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 Schematic diagram of the open state structure of the support frame, welding head and positioning block of the present invention;

[0019] Figure 3 Schematic cross-sectional structure diagram of the present invention;

[0020] Figure 4 Schematic diagram of the structure of the positioning block, fixing bolt and through hole of the present invention;

[0021] Figure 5 For the present invention Figure 3 Enlarged structure diagram of part B in;

[0022] Figure 6 For the present invention Figure 2 Enlarged structure diagram of part A in;

[0023] In the figure: 100, positioning structure main body; 101, support frame; 1011, fixed chassis; 1012, fixing screw; 1013, support top rod; 1014, chuck; 1015, positioning card hole; 1016, anti-friction annular cover; 102, welding head; 1021, bottom die; 1022, positioning block; 1023, fixing bolt; 1024, through hole; 1025, first internal thread hole; 1026, positioning fitting surface; 1027, fixing fitting surface. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 6 , the present invention provides a technical solution: an ultrasonic welding tooling positioning structure, including a positioning structure main body 100, the positioning structure main body 100 includes a support frame 101 and a welding head 102, fixing holes are opened at both ends of the support frame 101, a second internal thread hole is opened at the top end of the support frame 101, and the following are further provided on the positioning structure main body 100:

[0026] A quick positioning mechanism, and the quick positioning mechanism includes a positioning component arranged at the connection of the support frame 101 and the welding head 102, fitting components are arranged at both inner ends of the positioning component, and a fixed installation component is arranged at the bottom end of the positioning component. After the welding head 102 and the welding equipment are pre-installed, the quick positioning mechanism can accurately position the welding head 102 to achieve quick replacement operation.

[0027] In order to facilitate the accurate installation of the welding head 102 through the positioning component, in this embodiment, preferably, the positioning component includes a bottom mold 1021 fixedly installed on the upper surface of the support frame 101. A positioning block 1022 is provided on one side of the bottom mold 1021. After the bottom mold 1021 is fixedly installed, the positioning block 1022 is closed and fixed to the bottom mold 1021. The welding head 102 is positioned and installed through the positioning block 1022, and the positioning block 1022 is only used during the die change process of the equipment and does not participate in the welding process.

[0028] In order to facilitate the fitting and installation of the positioning block 1022 and the welding head 102 to the bottom mold 1021 through the fitting component, in this embodiment, preferably, the fitting component includes two positioning fitting surfaces 1026 integrally formed at one end inside the positioning block 1022, and the surface of the positioning fitting surface 1026 is in close contact with the surface of the welding head 102. The positioning block 1022 and the welding head 102 are fitted and installed and positioned through the positioning fitting surface 1026. Two fixed fitting surfaces 1027 are formed at the other end inside the positioning block 1022, and the surface of the fixed fitting surface 1027 is in close contact with the surface of the bottom mold 1021. The side surface of the positioning block 1022 is again fitted and fixedly installed to the surface of the bottom mold 1021 through the fixed fitting surface 1027.

[0029] In order to facilitate the positioning and use of the positioning block 1022 fixed on one side of the bottom mold 1021 through the fixed installation component, in this embodiment, preferably, the fixed installation component includes through holes 1024 opened at both ends of the bottom of the positioning block 1022. A fixing bolt 1023 is snap-fitted inside the through hole 1024. Internal threaded holes 1025 are opened at both ends on one side of the bottom mold 1021. The positioning block 1022 can be fitted to the side surface of the bottom mold 1021 through the fixed fitting surface 1027, and the fixing bolt 1023 passes through the inside of the through hole 1024 and is screwed into the inside of the internal threaded hole 1025 for fixed installation.

[0030] A support and snap-fitting mechanism, and this support and snap-fitting mechanism includes fixed support components provided at both ends of the inner surface of the positioning component. A precise snap-fitting component is provided at the top of the fixed support component. When the positioning block 1022 is used for support and positioning, the support and snap-fitting mechanism can stably support and fixedly install the positioning block 1022 for precise positioning, which is not prone to instability and is more stable for positioning use.

[0031] In order to facilitate the stable support and then fixed installation and repositioning of the positioning block 1022 through the fixed support component, in this embodiment, preferably, the fixed support component includes fixed chassis 1011 arranged at both ends of the upper surface of the bottom mold 1021. Fixed screws 1012 are arranged at the edges of the fixed chassis 1011, and the surface of the fixed chassis 1011 and the bottom mold 1021 are fixedly connected through the fixed screws 1012. A support top rod 1013 is integrally arranged at the middle position of the upper surface of the fixed chassis 1011. The fixed chassis 1011 and the support top rod 1013 can be fixedly installed at the top of the bottom mold 1021 through the fixed screws 1012, so as to facilitate the fixed installation and stable support use of the support top rod 1013.

[0032] In order to facilitate the precise support and positioning of the positioning block 1022 during fixed installation through the precise clamping component, in this embodiment, preferably, the precise clamping component includes a chuck 1014 integrally arranged at the top end of the support top rod 1013. An anti-friction annular cover 1016 is integrally arranged on the surface of the chuck 1014. Two positioning card holes 1015 are opened at the top end of the inner surface of the positioning block 1022. The chuck 1014 and the inside of the positioning card holes 1015 are tightly pressed and connected through the anti-friction annular cover 1016. The chuck 1014 can be clamped inside the positioning card holes 1015 through the anti-friction annular cover 1016, so as to stably support and fix the positioning block 1022 through the support top rod 1013 and precisely position the positioning block 1022.

[0033] In the present invention, the positioning block 1022 is made of a metal material with high hardness or other non-metal materials with high rigidity, and the positioning block 1022 cannot be deformed during use.

[0034] The working principle and usage process of the present invention: For this ultrasonic welding tooling positioning structure, during use, the lower surface of the support frame 101 can be contacted with the fixed installation position on the surface of the workbench. The installation bolt passes through the inside of the fixing hole and rotates and embeds into the workbench to fixedly install the positioning structure main body 100, so that the positioning structure main body 100 can be more stable and precise during positioning operation;

[0035] Then when the welding head 102 is pre-assembled onto the welding equipment, directly fit the surface of the fixed fitting surface 1027 to the side of the bottom mold 1021. Loosen the mounting bolts that control the rotation of the welding head 102. Visually check if the welding head 102 is parallel to the bottom mold 1021. Lower the welding head 102 to the height range marked by the positioning block 1022. Insert the fixing bolt 1023 through the through-hole 1024 and screw it into the internal thread hole 1025 to fixedly install the positioning block 1022. Manually rotate the welding head 102 to make the welding head 102 fit the positioning fitting surface 1026 on the positioning block 1022. Again, fix the top end of the welding head 102 to the top end of the equipment through the mounting bolts, completing the fixation of the welding head 102 on the equipment. Remove the fixing bolt 1023 and the positioning block 1022 used for fixing the positioning block 1022, completing the installation and positioning of the positioning tooling at one time without repeated correction. Then, appropriate welding parameters can be selected to start the normal use of the welding equipment, enabling a welding machine to be compatible with multiple sets of welding positioning tooling and making frequent replacement of positioning and installation more convenient. Furthermore, it reduces equipment investment, shortens production debugging time, reduces production costs, and improves the convenience and accuracy of the positioning structure body 100 for positioning the welding head 102;

[0036] Finally, when the positioning structure body 100 is used for positioning and installation, first fixedly install the support top rod 1013 on the upper surface of the bottom mold 1021 through the fixed chassis 1011. When installing the positioning block 1022, engage the chuck 1014 into the positioning card hole 1015 through the anti-friction annular cover 1016 to support and engage the positioning block 1022. Therefore, when the side of the welding head 102 contacts the surface of the positioning block 1022 through the positioning fitting surface 1026, the positioning block 1022 first stably supports it before positioning and installation, and then fixedly installs the bottom end again. Moreover, when the positioning block 1022 is stressed during the positioning and installation of the welding head 102, or when the thread structure is damaged and there is a slight looseness in the gap due to frequent rotation of the fixing bolt 1023, at this time, the support top rod 1013 and the chuck 1014 stably support and install the positioning block 1022, and the welding head 102 is accurately positioned and fitted stably through the positioning fitting surface 1026 on the inner surface of the positioning block 1022, improving the stability of the support and installation of the positioning block 1022 by the positioning structure body 100 during the positioning of the welding head 102 and the accuracy of positioning.

[0037] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic welding tool positioning structure, comprising a positioning structure body (100), the positioning structure body (100) comprising a support frame (101) and a welding head (102), fixing holes are provided at both ends of the support frame (101), and a second internal threaded hole is provided at the top end of the support frame (101), characterized in that: The positioning structure main body (100) is also provided with: A quick positioning mechanism, wherein the quick positioning mechanism comprises a positioning component arranged at the connection between the support frame (101) and the welding head (102), the inner ends of the positioning component are both provided with fitting components, and the bottom end of the positioning component is provided with a fixed installation component; The supporting clamping mechanism comprises fixed supporting components arranged at both ends of the inner surface of the positioning component, and the top of the fixed supporting component is provided with a precise clamping component.

2. The ultrasonic welding fixture positioning structure according to claim 1, characterized in that: The positioning assembly comprises a bottom mold (1021) fixedly mounted on the upper surface of the support frame (101), and a positioning block (1022) is provided on one side of the bottom mold (1021).

3. The ultrasonic welding tool positioning structure according to claim 2, characterized in that: The bonding component comprises two positioning bonding surfaces (1026) integrally formed at one end of the inner side of the positioning block (1022), and the surfaces of the positioning bonding surfaces (1026) are in close contact with the surface of the welding head (102); two fixed bonding surfaces (1027) are formed at the other end of the inner side of the positioning block (1022), and the surfaces of the fixed bonding surfaces (1027) are in close contact with the surface of the bottom mold (1021).

4. The ultrasonic welding fixture positioning structure according to claim 2, characterized in that: The fixed installation assembly comprises through holes (1024) formed at two ends of the bottom of the positioning block (1022), a fixing bolt (1023) is mounted in the through hole (1024), and an internal threaded hole (1025) is formed at two ends of one side of the bottom mold (1021).

5. The ultrasonic welding fixture positioning structure according to claim 4, characterized in that: The end of the fixing bolt (1023) is connected to the internal thread of the internal threaded hole (1025), and the positioning block (1022) and the bottom mold (1021) are connected to the through hole (1024) by thread rotation through the fixing bolt (1023).

6. The ultrasonic welding fixture positioning structure according to claim 1, characterized in that: The fixed support assembly comprises a fixed chassis (1011) arranged at both ends of the upper surface of the bottom mold (1021); fixing screws (1012) are arranged at the edge of the fixed chassis (1011); the fixed chassis (1011) and the surface of the bottom mold (1021) are fixedly connected via the fixing screws (1012); and a supporting top rod (1013) is integrally arranged at the middle position of the upper surface of the fixed chassis (1011).

7. The ultrasonic welding fixture positioning structure according to claim 6, characterized in that: The precise snap-fit ​​assembly comprises a clamping head (1014) integrally arranged at the top end of a supporting top rod (1013), an anti-friction annular cover (1016) being integrally arranged on the surface of the clamping head (1014), and two positioning clamping holes (1015) being provided at the top end of the inner surface of the positioning block (1022).

8. The ultrasonic welding fixture positioning structure according to claim 6, characterized in that: The clamping head (1014) is tightly connected to the interior of the positioning clamping hole (1015) via the anti-friction annular cover (1016), and the outer surface of the anti-friction annular cover (1016) contacts the inner surface of the pre-positioning clamping hole (1015).

Images