Clamping mechanism of ultrasonic vibration arm and ultrasonic welding head

Abstract

The utility model relates to the technical field of ultrasonic welding, and discloses a clamping mechanism of an ultrasonic vibration arm and an ultrasonic welding head, the clamping mechanism comprises a body locking assembly and a limiting assembly, and a body is provided with an installation cavity for the vibration arm to penetrate through. A spring pressing plate and an adjusting clamping ring for positioning an amplitude-change pole of the vibrating arm are sequentially fixed to one end of the mounting cavity, the spring pressing plate and the adjusting clamping ring are arranged in an attached mode, and at least one spring is arranged between the face, away from the adjusting clamping ring, of the spring pressing plate and the body; the locking assembly and the limiting assembly are fixed to the body in the penetrating direction of the vibrating arm. During actual installation, only the vibration arm needs to be installed on the body, the whole size is small, and the ultrasonic welding device can be suitable for small ultrasonic welding equipment; when the welding head needs to be replaced, the clamping mechanism does not need to be disassembled, the vibration arm can be taken down by loosening the locking assembly and adjusting the position of the limiting assembly, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic welding, in particular to a clamping mechanism of an ultrasonic vibration arm and an ultrasonic welding head. Background Art

[0002] In the field of ultrasonic welding, the final welding is achieved through a vibrating arm. A common vibrating arm structure is as follows Figure 1 As shown, it includes a welding head 100, a horn 101 and a transducer 102. When actually welding, the vibration arm needs to be installed in the ultrasonic welding equipment for welding, wherein during assembly, it is also necessary to ensure that the front and rear positions of the vibration arm are correct, and the welding head 100 is perpendicular to the surface to be welded, that is, the welding surface of the welding head 100 is parallel to the surface to be welded.

[0003] At present, most of the fixtures for installing the vibration arm are fixed fixtures. When the welding head needs to be replaced, the entire fixture needs to be removed first, and then the vibration arm is taken out of the fixture to replace the welding head. After the welding head is replaced, the vibration arm is put into the fixture. At this time, the position of the vibration arm needs to be adjusted, such as using a level to adjust the vertical position of the vibration arm and accurately adjust the front and rear position of the vibration arm. Therefore, for the existing fixed fixture for installing the vibration arm, it has the defects of large structure, complex installation and cumbersome adjustment of the vibration arm position in actual use. Utility Model Content

[0004] In view of the shortcomings of the background technology, the utility model provides a clamping mechanism for an ultrasonic vibration arm and an ultrasonic welding head. The technical problem to be solved is that the existing fixed clamp for installing the vibration arm has defects such as large structure, complex installation and cumbersome adjustment of the vibration arm position in actual use.

[0005] In order to solve the above technical problems, in the first aspect, the utility model provides the following technical solutions: a clamping mechanism of an ultrasonic vibration arm, comprising

[0006] A body, wherein the body is provided with an installation cavity for the vibration arm to pass through, and along the passing direction of the vibration arm, a spring pressure plate and an adjustment clamp ring for positioning the amplitude rod of the vibration arm are fixed in sequence at one end of the installation cavity, a side of the spring pressure plate close to the adjustment clamp ring is arranged in contact with the end surface of the adjustment clamp ring, and at least one spring is arranged between a side of the spring pressure plate away from the adjustment clamp ring and the body;

[0007] A locking assembly and a limiting assembly, wherein the locking assembly and the limiting assembly are fixed to the body along a passing direction of the vibrating arm;

[0008] The locking assembly is provided with a rotation groove and a locking hole, the locking hole is communicated with the rotation groove, one end of the adjusting snap ring close to the spring pressure plate passes through the rotation groove, and a detachable locking member is provided in the locking hole, and the locking member is used to press one end of the adjusting snap ring close to the spring pressure plate against the inner wall of the rotation groove;

[0009] The limiting assembly includes a knob plunger with one end extending into the installation cavity.

[0010] In a certain embodiment of the first aspect, four spring mounting holes are formed on a side of the spring pressure plate facing away from the adjusting clamp, and the spring is respectively disposed in each spring mounting hole.

[0011] In a certain implementation manner of the first aspect, a positioning pin is provided at the bottom of the spring pressure plate, and a positioning hole matching the positioning pin is provided in the body.

[0012] In a certain embodiment of the first aspect, the locking assembly includes an angle adjustment plate, a notch is provided at the bottom of the angle adjustment plate, a baffle is installed on the side of the angle adjustment plate facing away from the spring pressure plate, the baffle and the notch form the rotation groove, the locking hole is provided inwardly on the top surface of the angle adjustment plate, an adjustment plate mounting hole is also provided on the angle adjustment plate, and a locking screw is installed in the adjustment plate mounting hole to fix the angle adjustment plate to the main body.

[0013] In a certain implementation manner of the first aspect, a disc spring, a conical washer and a spherical washer are sequentially provided on the locking screw between the screwing end of the locking screw and the angle adjustment plate;

[0014] A flange nut and a locking nut are sequentially arranged on the portion of the locking screw that passes through the angle adjustment plate in a direction away from the angle adjustment plate.

[0015] In certain embodiments of the first aspect, the adjusting plate mounting hole is waist-shaped.

[0016] In a certain embodiment of the first aspect, the limit assembly includes a front and rear adjustment plate, which is provided with a fixing hole along the passing direction of the vibration arm, and the fixing hole is provided with a front and rear locking screw that fixes the front and rear adjustment plate to the main body, and the knob plunger is installed on the front and rear adjustment plate.

[0017] In a certain embodiment of the first aspect, two fixing holes are formed on the front and rear adjustment plates, each fixing hole is provided with a front and rear locking screw, and the knob plunger is between the two fixing holes.

[0018] In a certain embodiment of the first aspect, a groove is provided on the main body, the front and rear adjustment plates are installed in the groove, a scale line is provided on the main body on one side of the groove along the direction in which the vibration arm passes, and an indicator line is provided on the top surface of the front and rear adjustment plates on the side corresponding to the scale line.

[0019] In a second aspect, the utility model provides an ultrasonic welding head, comprising the above-mentioned clamping mechanism of an ultrasonic vibration arm, and also comprising a vibration arm, wherein the vibration arm is mounted on the body.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] First, during the actual installation, it is only necessary to install the vibration arm on the main body. The entire volume is small and can be applied to small ultrasonic welding equipment.

[0022] Secondly, when the welding head needs to be replaced, the vibrating arm can be removed by loosening the locking assembly and adjusting the position of the limit assembly without removing the clamping mechanism, which is convenient and quick to operate;

[0023] Finally, during installation, similarly, the vibration arm can be positioned to a suitable position by adjusting the positions of the front and rear adjustment plates, and the installation angle of the vibration arm can be controlled by tightening the locking piece, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an existing vibration arm;

[0025] Figure 2 Schematic diagram of an ultrasonic welding head in an embodiment

[0026] Figure 3 for Figure 2 A cross-sectional view of

[0027] Figure 4 A schematic diagram of a first viewing direction of the structure of the adjusting clamp ring and the locking assembly;

[0028] Figure 5 A schematic diagram showing a second viewing direction of the structure of the adjusting clamp ring and the locking assembly. DETAILED DESCRIPTION

[0029] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0030] Embodiment 1

[0031] like Figure 2-3 As shown, a clamping mechanism of an ultrasonic vibration arm includes

[0032] The body 1 is provided with a mounting cavity for the vibration arm to pass through, and a spring pressure plate 3 and an adjusting clamp 2 for positioning the amplitude rod 101 of the vibration arm are fixed in sequence at one end of the mounting cavity along the passing direction of the vibration arm, and a side of the spring pressure plate 3 close to the adjusting clamp 2 is arranged in contact with the end surface of the adjusting clamp 2, and at least one spring 30 is arranged between a side of the spring pressure plate 3 away from the adjusting clamp 2 and the body 1;

[0033] A locking assembly 5 and a limiting assembly 6, wherein the locking assembly 5 and the limiting assembly 6 are fixed on the body 1 along the passing direction of the vibration arm;

[0034] A rotation groove and a locking hole are provided on the locking assembly 5, the locking hole is connected with the rotation groove, one end of the adjusting snap ring 2 close to the spring pressure plate 3 passes through the rotation groove, and a detachable locking member 51 is provided in the locking hole, and the locking member 51 is used to press the end of the adjusting snap ring 2 close to the spring pressure plate 3 against the inner wall of the rotation groove;

[0035] The limiting assembly 6 includes a knob plunger 61 with one end extending into the mounting cavity.

[0036] It should be noted that although Figure 2 and Figure 3 The installation cavity is not marked, but the position of the installation cavity can be obtained based on the position of the vibration arm in the main body 1; in addition, the position of the locking hole can be determined based on the position of the locking piece 51, and similarly, the position of the rotating groove can be determined based on the position of the adjusting clamp 2 on the locking assembly 5.

[0037] Specifically, in this embodiment, combined with Figure 3 and Figure 4 The locking assembly 5 includes an angle adjustment plate 50, a notch is provided at the bottom of the angle adjustment plate 50, a baffle 53 is installed on the side of the angle adjustment plate 50 facing away from the spring pressure plate 3, the baffle 53 and the notch form a rotation groove, a locking hole is provided inwardly on the top surface of the angle adjustment plate 50, and an adjustment plate mounting hole 54 is also provided on the angle adjustment plate 50, and the adjustment plate mounting hole 54 is provided with a locking screw 52 for fixing the angle adjustment plate 50 to the body.

[0038] In actual use, when the locking piece 51 does not lock the adjusting clip 2, the vibration arm can be rotated to adjust the position of the vibration arm in the installation cavity. After the adjustment is completed, the locking piece 51 is rotated to lock the adjusting clip 2, so that the adjusting clip 2 is connected to the main body 1 to form a rigid body, thereby limiting the position of the vibration arm in the installation cavity; then the angle adjustment plate 52 can be fixed to the main body 1 by the locking screw 52.

[0039] In this embodiment, refer to Figure 4 and Figure 5The locking screw 52 fixes the angle adjustment plate 52 on the main body 1 as follows: a disc spring 57, a conical washer 58 and a spherical washer 59 are provided on the locking screw 52 in sequence between the screwing end of the locking screw 52 and the angle adjustment plate 50; among which the disc spring 57, the conical washer 58 and the spherical washer 59 can adopt existing devices.

[0040] A flange nut 55 and a locking nut 56 are sequentially provided on the portion of the locking screw 52 that passes through the angle adjustment plate 50 in a direction away from the angle adjustment plate 52 .

[0041] During actual installation, the spherical washer 59 and the conical washer 58 can adapt to a certain amount of positional deviation through the contact surface of the arc, and a certain angle can be fine-tuned through the positional deviation of the contact surface. The locking nut 56 applies a certain locking force to the flange nut 55, so that it has a certain pressing force on the disc spring 57. The locking nut 56 and the flange nut 55 are locked together to prevent the flange nut 56 from loosening.

[0042] Specifically, in this embodiment, the adjustment plate mounting hole 54 is waist-shaped.

[0043] Specifically, in this embodiment, Figure 2 and Figure 3 In the figure, the limit assembly 6 includes a front and rear adjustment plate 60, on which a fixing hole 62 is opened along the passing direction of the vibration arm, and in which a front and rear locking screw 63 is provided to fix the front and rear adjustment plate 60 to the main body, and a knob plunger 61 is installed on the front and rear adjustment plate 60.

[0044] In actual use, when the knob plunger 61 is located on the front and rear adjustment plates 60, the knob plunger 61 can limit the front position of the amplitude transformer 101, and the position of the knob plunger 61 can be adjusted by adjusting the installation position of the front and rear adjustment plates 60 on the main body 1, thereby limiting the amplitude transformer 101 of different lengths.

[0045] Furthermore, in this embodiment, two fixing holes 62 are provided on the front and rear adjustment plates 60 , each of the fixing holes 62 is provided with a front and rear locking screw 63 , and the knob plunger 61 is between the two fixing holes 62 .

[0046] In actual use, the two fixing holes 62 can be provided to make the front and rear adjustment plates 60 more firmly fixed to the main body 1 .

[0047] In addition, in this embodiment, in order to facilitate the understanding of the position changes of the front and rear adjustment plates 60, a groove 10 is opened on the main body 1, and the front and rear adjustment plates 60 are installed in the groove 10. A scale line 64 is provided on the main body 1 on one side of the groove 10 along the direction in which the vibration arm passes, and an indicator line is provided on the top surface of the front and rear adjustment plates 60 on the side corresponding to the scale line.

[0048] Reference Figure 4 In this embodiment, four spring installation holes are provided on the side of the spring pressure plate 3 away from the adjusting clip 2, and a spring 30 is provided in each spring installation hole. In actual use, the spring pressure plate 3 can push the adjusting clip 2 through the action of the spring 30. In addition, a notch 20 is provided on the adjusting clip 2, and the notch 20 matches the protrusion on the amplitude rod 101, so that the amplitude rod 101 can be positioned.

[0049] In addition, Figure 4 In the embodiment, a locating pin 4 is provided at the bottom of the spring pressure plate 3, and a locating hole 13 matching the locating pin 4 is provided in the body 1. In actual use, the locating pin 4 and the locating hole 13 can realize the precise installation of the spring pressure plate 3.

[0050] In summary, the utility model only needs to install the vibration arm on the body 1 when actually installing the vibration arm, and the entire volume is small, which can be applied to small ultrasonic welding equipment;

[0051] Secondly, when the welding head 100 needs to be replaced, the clamping mechanism does not need to be removed. The vibration arm can be removed by loosening the locking component 5 and adjusting the position of the limit component 6, which is convenient and quick to operate;

[0052] Finally, during installation, similarly, the vibration arm can be positioned to a suitable position by adjusting the positions of the front and rear adjustment plates 60 , and the installation angle of the vibration arm can be controlled by tightening the locking member 51 , which is easy to operate.

[0053] Embodiment 2

[0054] like Figure 2 As shown, this embodiment provides an ultrasonic welding head, including the clamping mechanism of the ultrasonic vibration arm mentioned above, and also includes a vibration arm, and the vibration arm is installed on the body 1.

[0055] The above is based on the enlightenment of this utility model. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of ​​this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A clamping mechanism for an ultrasonic vibration arm, characterized in that: include A body (1), wherein the body (1) is provided with an installation cavity for the vibration arm to pass through, and along the passing direction of the vibration arm, a spring pressure plate (3) and an adjustment clamp (2) for positioning the amplitude rod of the vibration arm are fixed in sequence at one end of the installation cavity, a side of the spring pressure plate (3) close to the adjustment clamp (2) is arranged in contact with the end surface of the adjustment clamp (2), and at least one spring (30) is provided between a side of the spring pressure plate (3) facing away from the adjustment clamp (2) and the body (1); A locking assembly (5) and a limiting assembly (6), wherein the locking assembly (5) and the limiting assembly (6) are fixed on the body (1) along the passing direction of the vibration arm; The locking assembly (5) is provided with a rotation groove and a locking hole, the locking hole is communicated with the rotation groove, one end of the adjusting snap ring (2) close to the spring pressure plate (3) passes through the rotation groove, and a detachable locking member (51) is provided in the locking hole, and the locking member (51) is used to press the end of the adjusting snap ring (2) close to the spring pressure plate (3) against the inner wall of the rotation groove; The limiting assembly (6) comprises a knob plunger (61) with one end extending into the installation cavity.

2. The clamping mechanism of an ultrasonic vibration arm according to claim 1, characterized in that: Four spring installation holes are provided on a side of the spring pressure plate (3) facing away from the adjusting clamp ring (2), and the spring (30) is respectively provided in each spring installation hole.

3. The clamping mechanism of an ultrasonic vibration arm according to claim 2, characterized in that: A positioning pin (4) is provided at the bottom of the spring pressure plate (3), and a positioning hole (13) matching the positioning pin (4) is provided in the body (1).

4. The clamping mechanism of an ultrasonic vibration arm according to claim 1, characterized in that: The locking assembly (5) comprises an angle adjustment plate (50), a notch is provided at the bottom of the angle adjustment plate, a baffle (53) is installed on the side of the angle adjustment plate (50) facing away from the spring pressure plate (3), the baffle (53) and the notch form the rotation groove, the locking hole is provided inwardly on the top surface of the angle adjustment plate (50), and an adjustment plate mounting hole (54) is also provided on the angle adjustment plate (50), and a locking screw (52) is installed in the adjustment plate mounting hole (54) to fix the angle adjustment plate (50) to the body (1).

5. The clamping mechanism of the ultrasonic vibration arm according to claim 4, characterized in that: The locking screw (52) is provided with a disc spring (57), a conical washer (58) and a spherical washer (59) in sequence between the screwing end of the locking screw (52) and the angle adjustment plate (50); A flange nut (55) and a locking nut (56) are sequentially arranged on the portion of the locking screw (52) that passes through the angle adjustment plate (50) in a direction away from the angle adjustment plate (50).

6. The clamping mechanism of the ultrasonic vibration arm according to claim 4, characterized in that: The adjustment plate mounting hole (54) is waist-shaped.

7. The clamping mechanism of an ultrasonic vibration arm according to claim 1, characterized in that: The limit assembly (6) includes a front and rear adjustment plate (60), a fixing hole (62) is provided on the front and rear adjustment plate (60) along the passing direction of the vibration arm, and a front and rear locking screw (63) is provided in the fixing hole (62) for fixing the front and rear adjustment plate (60) to the main body (1), and the knob plunger (61) is installed on the front and rear adjustment plate (60).

8. The clamping mechanism of the ultrasonic vibration arm according to claim 7, characterized in that: The front and rear adjustment plate (60) is provided with two fixing holes (62), each fixing hole (62) is provided with a front and rear locking screw (63), and the knob plunger (61) is located between the two fixing holes (62).

9. The clamping mechanism of the ultrasonic vibration arm according to claim 7, characterized in that: The main body (1) is provided with a groove (10), the front-rear adjustment plate (60) is installed in the groove (10), a scale line (64) is provided on the main body (1) on one side of the groove (10) along the direction in which the vibration arm passes, and an indication line is provided on the top surface of the front-rear adjustment plate (60) on the side corresponding to the scale line (64).

10. An ultrasonic welding head, characterized in that: A clamping mechanism comprising an ultrasonic vibration arm as claimed in any one of claims 1 to 9, further comprising a vibration arm, wherein the vibration arm is mounted on the body (1).

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