Ultrasonic welding jig

Abstract

The utility model discloses an ultrasonic welding jig, which relates to the technical field of die welding and comprises an upper welding head and a jig component, and the upper welding head is mounted above the jig component; the jig assembly comprises an impeller, a jacking mechanism, a supporting mechanism and a positioning mechanism, the jacking mechanism is installed on the supporting mechanism, and the impeller is installed at the upper end of the jacking mechanism; the positioning mechanism comprises a positioning ring, a positioning base and a positioning shaft sleeve; the bottom of the positioning base is mounted on the supporting mechanism; the positioning ring is arranged on the positioning base, a mounting hole is formed in the bottom of the positioning base, and one end of the positioning shaft sleeve penetrates through the mounting hole from the bottom of the positioning base to the interior of the positioning base; the positioning shaft sleeve is located at the bottom of the impeller. According to the utility model, the influence on the dynamic balance of the product due to deformation when the product is taken out can be reduced, and the product yield is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould welding technical field especially is related to an ultrasonic welding fixture. BACKGROUND

[0002] The existing special fixture for mass production impeller ultrasonic welding cannot meet the rapid correction center of the fixture (the original fixture correction time is long and the correction precision is poor) in the use process, the product is difficult to take out, the product dynamic balance is poor, and the defective rate is high.

[0003] For example, the Chinese utility model patent with the publication number CN221851194U discloses an ultrasonic welding mold, the lower end of the lower mold fixture is provided with a lifting assembly and an ejection rod, the lower mold fixture is provided with an ejection hole, the ejection rod is arranged in the lifting assembly, and the end close to the lower mold fixture extends into the ejection hole, the lifting assembly comprises a base, a movable middle layer plate, a movable top plate, a jacking cylinder and a downward pulling cylinder, the movable middle layer plate is arranged above the base, the movable top plate is arranged above the movable middle layer plate, the lower mold fixture is installed at the end of the movable top plate away from the movable middle layer plate, the jacking cylinder is arranged at the end of the movable middle layer plate close to the movable top plate, the telescopic rod of the jacking cylinder is connected with the movable top plate, the downward pulling cylinder is arranged at the end of the base close to the movable middle layer plate, the telescopic rod of the downward pulling cylinder is connected with the movable middle layer plate, and the ejection rod is arranged on the base, passes through the movable middle layer plate and the movable top plate and reaches the ejection hole. Although the jacking structure is arranged, the positioning is prone to deviation in the whole process of jacking and welding, the positioning is inaccurate, and then the product production efficiency, product qualification rate and the like are affected.

[0004] Therefore, it is necessary to design a welding structure for improving product production efficiency and product qualification rate. UTILITY MODEL CONTENTS

[0005] In order to solve the existing problems, the utility model provides an ultrasonic welding fixture.

[0006] In order to realize the purpose of the utility model, the technical scheme adopted by the utility model is as follows:

[0007] An ultrasonic welding fixture, comprising an upper welding head and a fixture assembly, the upper welding head is installed above the fixture assembly; the fixture assembly comprises an impeller, a jacking mechanism, a supporting mechanism and a positioning mechanism, the jacking mechanism is installed on the supporting mechanism, and the impeller is installed at the upper end of the jacking mechanism; the positioning mechanism comprises a positioning ring, a positioning base and a positioning shaft sleeve, the bottom of the positioning base is installed on the supporting mechanism; the positioning ring is arranged on the positioning base, the bottom of the positioning base is provided with a mounting hole, and one end of the positioning shaft sleeve passes through the mounting hole at the bottom of the positioning base to the inside of the positioning base; and the positioning shaft sleeve is located at the bottom of the impeller.

[0008] Further based on the technical scheme, the impeller comprises an impeller cover and an impeller body, the impeller cover is used for covering the upper end of the impeller body, and the impeller cover is installed below the upper welding head; the impeller body is installed on the jacking mechanism; and the positioning mechanism is installed on the supporting mechanism.

[0009] Further based on the technical scheme, the supporting mechanism comprises a supporting plate and a supporting column installed at the bottom of the supporting plate.

[0010] Further based on the technical scheme, the jacking mechanism comprises a jacking rod, a cylinder and a cylinder seat, the bottom of the impeller body is extended with a connecting shaft; the cylinder seat is installed at the bottom of the supporting plate, the cylinder is installed on the cylinder seat, one end of the jacking rod abuts against one end of the connecting shaft, and the other end of the connecting shaft is installed at the bottom of the impeller body.

[0011] Further based on the technical scheme, the bottom of the supporting plate is provided with a through hole, the output end of the cylinder extends into the through hole; and the bottom end of the jacking rod is also located in the through hole and connected with the output end of the cylinder.

[0012] Further based on the technical scheme, the positioning base is internally provided with a first limiting hole, a second limiting hole and a third limiting hole, the first limiting hole, the second limiting hole and the third limiting hole are all communicated, the inner diameter of the first limiting hole is greater than that of the second limiting hole, the inner diameter of the second limiting hole is greater than that of the third limiting hole, a first boss is formed between the first limiting hole and the second limiting hole, and a second boss is formed between the second limiting hole and the third limiting hole.

[0013] Further based on the technical scheme, the bottom of the third limiting hole is a limiting plate, and an installation hole is further formed in the limiting plate, the inner diameter of the installation hole is smaller than that of the third limiting hole; one end of the positioning shaft sleeve passes through the installation hole from the outside of the bottom of the positioning base to the positioning space of the third limiting hole.

[0014] Further based on the technical scheme, the positioning base is internally provided with a first limiting hole, a second limiting hole and a third limiting hole, the first limiting hole, the second limiting hole and the third limiting hole are all communicated, the inner diameter of the first limiting hole is greater than that of the second limiting hole, the inner diameter of the second limiting hole is greater than that of the third limiting hole, a first boss is formed between the first limiting hole and the second limiting hole, and a second boss is formed between the second limiting hole and the third limiting hole.

[0015] Further based on the technical scheme, the impeller body is located in the second limiting hole and the third limiting hole.

[0016] Further based on the technical scheme, the positioning ring is located in the first limiting hole, the bottom of the positioning ring is installed on the first boss formed by the first limiting hole and the second limiting hole, and the upper welding head is arranged above the positioning ring.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] The utility model discloses a positioning mechanism and jacking mechanism can realize quick improvement and stable and reliable effect of changing fixture efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is overall structure schematic diagram of the utility model welding fixture;

[0020] Figure 2 It is first visual angle partial structure schematic diagram of the utility model welding fixture;

[0021] Figure 3 It is second visual angle partial structure schematic diagram of the utility model welding fixture;

[0022] Figure 4 It is sectional view of the utility model welding fixture;

[0023] Reference signs: 1, upper welding head;2, impeller body;3, impeller cover;4, support plate;5, support column;6, ejector rod;7, air cylinder;8, air cylinder seat;9, connecting shaft;10, positioning ring;11, positioning base;12, positioning shaft sleeve;13, first limit hole;14, second limit hole;15, third limit hole;16, limit plate;17, mounting hole;18, protruding portion;19, first boss;20, second boss;21, bolt. DETAILED DESCRIPTION

[0024] The utility model makes further elaboration and explanation with the combination of the drawings and specific embodiment. The technical features of each embodiment in the utility model can be combined on the premise of no mutual conflict.

[0025] In order to make the above-mentioned purpose, feature and advantage of the utility model more obvious and easy to understand, the specific embodiment of the utility model is explained in detail with the combination of the drawings. In the following description, a lot of specific details are set forth to facilitate a full understanding of the utility model. But the utility model can be implemented in many other ways different from the description, and the person skilled in the art can make similar improvement without violating the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments. The technical features in each embodiment of the utility model can be combined on the premise of no mutual conflict.

[0026] In the description of the utility model, it is understood that when one element is considered to be "connected" to another element, it can be directly connected to another element or indirectly connected, that is, there is an intermediate element.

[0027] In the description of the utility model, it is understood that the terms "first", "second" are only used for distinguishing purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature.

[0028] Embodiment

[0029] In combination Figures 1-4 As shown in the embodiment, the ultrasonic welding jig comprises an upper welding head 1 and a jig assembly, and the upper welding head 1 is installed above the jig assembly. Wherein, the jig assembly comprises an impeller, a jacking mechanism, a supporting mechanism and a positioning mechanism, the jacking mechanism is installed on the supporting mechanism, and the impeller is installed on the upper end of the jacking mechanism.

[0030] In the embodiment, the impeller comprises an impeller cover sheet 3 and an impeller body 2, the impeller cover sheet 3 is used to cover the upper end of the impeller body 2, and the impeller cover sheet 3 is installed below the upper welding head 1, the impeller body 2 is installed on the jacking mechanism, the positioning mechanism is installed on the supporting mechanism, and the positioning mechanism is used to position the impeller structure. It should be noted that the impeller is a prior structure, which is not described in detail here.

[0031] In the embodiment, the jacking mechanism comprises a jack rod 6, a gas cylinder 7 and a gas cylinder seat 8, the bottom of the impeller body 2 extends a connecting shaft 9; the gas cylinder 7 is installed on the gas cylinder seat 8, and the output end of the gas cylinder 7 and one end of the jack rod 6 can be connected by adopting a nut structure or the like, the other end of the jack rod 6 abuts against one end of the connecting shaft 9, and the other end of the connecting shaft 9 is fixed at the center position of the bottom of the impeller body 2.

[0032] In the embodiment, the supporting mechanism comprises a supporting plate 4 and a plurality of supporting columns 5 installed at the bottom of the supporting plate 4. In the embodiment, the gas cylinder seat 8 is fixed at the bottom of the supporting plate 4 by a bolt 21 or the like common structure, and the gas cylinder 7 is also fixed at the bottom of the supporting plate 4. The bottom of the supporting plate 4 is provided with a through hole, and the output end of the gas cylinder 7 extends into the through hole; and the bottom end of the jack rod 6 is also located in the through hole and connected with the output end of the gas cylinder 7.

[0033] In this embodiment, the positioning mechanism comprises a positioning ring 10, a positioning base 11 and a positioning shaft sleeve 12, the bottom of the positioning base 11 is mounted on the support mechanism; the positioning ring 10 is arranged on the positioning base 11, the bottom of the positioning base 11 is provided with a mounting hole 17, one end of the positioning shaft sleeve 12 passes through the mounting hole 17 from the bottom of the positioning base 11 to the inside of the positioning base 11; and the positioning shaft sleeve 12 is located at the bottom of the impeller. Specifically, the bottom of the positioning base 11 is mounted on the upper end surface of the support plate 4 of the support mechanism, the inside of the positioning base 11 is provided with a first limiting hole 13, a second limiting hole 14 and a third limiting hole 15, and the first limiting hole 13, the second limiting hole 14 and the third limiting hole 15 are all communicated, at the same time, the inner diameter of the first limiting hole 13 is greater than the inner diameter of the second limiting hole 14, and the inner diameter of the second limiting hole 14 is greater than the inner diameter of the third limiting hole 15. Further, a first boss 19 is formed between the first limiting hole 13 and the second limiting hole 14, and a second boss 20 is formed between the second limiting hole 14 and the third limiting hole 15, wherein the bottom of the third limiting hole 15 is a limiting plate 16, and the limiting plate 16 is further provided with a mounting hole 17, and the inner diameter of the mounting hole 17 is smaller than the inner diameter of the third limiting hole 15. Still further, one end of the positioning shaft sleeve 12 passes through the mounting hole 17 from the outside of the bottom of the positioning base 11 to the positioning space where the third limiting hole 15 is located.

[0034] Specifically, the inside of the positioning shaft sleeve 12 is provided with a central shaft hole, the connecting shaft 9 and the top rod 6 are located in the central shaft hole to perform corresponding actions, and the central shaft hole is coaxial with the through hole at the bottom of the support plate 4. Specifically, the upper end of the top rod 6 extends into the central shaft hole and abuts against the bottom end of the connecting shaft 9, and the other end of the connecting shaft 9 extends along the central shaft hole until it is connected with the bottom of the impeller body 2.

[0035] In this embodiment, the impeller body 2 is located in the second limiting hole 14 and the third limiting hole 15, specifically, the bottom of the impeller body 2 is mounted in the third limiting hole 15, one end of the positioning shaft sleeve 12 located in the third limiting hole 15 is below the bottom of the impeller body 2 and does not contact; one end of the positioning shaft sleeve 12 is placed above the support plate 4 and is not fixed. The upper part of the impeller body 2 is arranged in the second limiting hole 14, and the upper part of the impeller body 2 and the bottom of the impeller body 2 both have a cylindrical structure, and the diameter of the upper part of the impeller body 2 is greater than the diameter of the bottom of the impeller body 2. Therefore, when the upper part of the impeller body 2 and the lower part of the impeller body 2 are fixedly connected, a protruding part 18 extending to the outside of the bottom of the impeller body 2 is formed, the protruding part 18 is the peripheral edge part of the upper part of the impeller body 2, and the protruding part 18 is located on the second boss 20 formed between the third limiting hole 15 and the second limiting hole 14.

[0036] In this embodiment, the first limiting hole 13 is provided with a positioning ring 10, and the bottom of the positioning ring 10 is installed on the first boss 19 formed by the first limiting hole 13 and the second limiting hole 14, and the upper welding head 1 is arranged above the positioning ring 10, and the impeller cover plate 3 installed at the bottom of the upper welding head 1 is located directly above the impeller body 2, and the diameter of the impeller cover plate 3 is smaller than the inner diameter of the positioning ring 10, so that the impeller cover plate 3 can be accurately positioned in the positioning ring 10 when pressed down.

[0037] The working principle of the overall welding jig is:

[0038] The process of correcting the welding jig is: first, fix the upper welding head 1 on the machine head of the ultrasonic welding machine (the machine head can move vertically up and down), then place the jig assembly directly below the upper welding head 1, and then place the positioning ring 10 in the positioning base 11. Start the upper welding head 1 to descend into the positioning ring 10, and then use the pressing plate screw to fix the support plate 4 on the ultrasonic machine table, at this time the support column 5 is also located on the ultrasonic machine table to limit the height. Take away the positioning ring 10, and the correction work of the entire welding jig is completed.

[0039] The welding process of the welding jig is: first, align the connecting shaft 9 at the bottom of the impeller body 2 to insert into the positioning shaft sleeve 12, manually press the upper end face of the positioning shaft sleeve 12 in the jig assembly (at this time the air cylinder 7 and the top rod 6 are at the original position), then place the impeller cover plate 3 on the impeller body in the fixed direction (it needs to be explained that the fixed direction is the direction in which the positioning small cylinder of the impeller body 2 is aligned with the positioning hole of the impeller cover plate 3 (not explicitly shown in the figure)), and the two are adapted and positioned, which is the existing structure and does not need to be described in detail. Start the ultrasonic welding machine, and the machine head of the ultrasonic welding machine drives the upper welding head 1 to descend and complete the welding, at this time the impeller body 2 and the impeller cover plate 3 have formed an integral whole. After welding, the machine head of the ultrasonic welding machine returns to the original position, at this time the air cylinder 7 pushes the top rod 6, the top rod 6 pushes the connecting shaft 9 at the bottom of the impeller body 2 to make the welded product go up, and then the product is manually taken out. Since the impeller body 2 and the impeller cover plate 3 are in the same cylindrical surface of the positioning base 11, the concentricity after welding and the overflow glue after welding can be ensured. Thus, the dynamic balance of the product and the precision of the product size are ensured. It needs to be explained that the entire welding jig is connected with the external terminal, and the welding action can be controlled by controlling the external terminal (such as a computer) to start or stop, which is the existing means and does not need to be described in detail.

[0040] The above merely describes the implementation forms of the present application, which are relatively specific and detailed, but should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all fall within the protection scope of the present application.

Claims

1. An ultrasonic welding tool, characterized by, The welding head and the jig assembly are included, and the welding head is installed above the jig assembly. The jig assembly includes an impeller, a lifting mechanism, a supporting mechanism and a positioning mechanism, the lifting mechanism is installed on the supporting mechanism, and the impeller is installed on the upper end of the lifting mechanism. The positioning mechanism includes a positioning ring, a positioning base and a positioning sleeve, the bottom of the positioning base is installed on the supporting mechanism, the positioning ring is arranged on the positioning base, the bottom of the positioning base is provided with a mounting hole, one end of the positioning sleeve passes through the mounting hole from the bottom of the positioning base to the inside of the positioning base, and the positioning sleeve is located at the bottom of the impeller.

2. The ultrasonic welding tool of claim 1, wherein The impeller includes an impeller cover and an impeller body, the impeller cover is used for covering the upper end of the impeller body, the impeller cover is installed below the welding head, the impeller body is installed on the lifting mechanism, and the positioning mechanism is installed on the supporting mechanism.

3. The ultrasonic welding tool of claim 2, wherein, The supporting mechanism includes a supporting plate and a supporting column installed at the bottom of the supporting plate.

4. The ultrasonic welding tool of claim 3, wherein, The lifting mechanism includes a lifting rod, a cylinder and a cylinder seat, the bottom of the impeller body is provided with a connecting shaft, the cylinder seat is installed at the bottom of the supporting plate, the cylinder is installed on the cylinder seat, one end of the lifting rod abuts against one end of the connecting shaft, and the other end of the connecting shaft is installed at the bottom of the impeller body.

5. The ultrasonic welding tool of claim 4, wherein, The bottom of the supporting plate is provided with a through hole, the output end of the cylinder extends into the through hole, and one end of the bottom of the lifting rod also extends into the through hole and is connected with the output end of the cylinder.

6. The ultrasonic welding tool of claim 3, wherein, The inside of the positioning base is provided with a first limiting hole, a second limiting hole and a third limiting hole, the first limiting hole, the second limiting hole and the third limiting hole are communicated, the inner diameter of the first limiting hole is greater than that of the second limiting hole, the inner diameter of the second limiting hole is greater than that of the third limiting hole, a first boss is formed between the first limiting hole and the second limiting hole, and a second boss is formed between the second limiting hole and the third limiting hole.

7. The ultrasonic welding tool of claim 6, wherein, The bottom of the third limiting hole is a limiting plate, and a mounting hole is further arranged on the limiting plate, the inner diameter of the mounting hole is smaller than that of the third limiting hole, one end of the positioning sleeve passes through the mounting hole from the outside of the bottom of the positioning base to the positioning space of the third limiting hole.

8. The ultrasonic welding tool of claim 7, wherein, The inside of the positioning sleeve is provided with a central shaft hole, the connecting shaft and the lifting rod are located in the central shaft hole, and the central shaft hole is coaxial with the through hole at the bottom of the supporting plate.

9. The ultrasonic welding tool of claim 8, wherein, The impeller body is located in the second limiting hole and the third limiting hole.

10. The ultrasonic welding tool of claim 9, wherein, The positioning ring is located in the first limiting hole, the bottom of the positioning ring is installed on the first boss formed by the first limiting hole and the second limiting hole, and the welding head is arranged above the positioning ring.

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