Ultrasonic welding machine with quick-change welding head

Abstract

The utility model relates to the field of ultrasonic welding machines, in particular to an ultrasonic welding machine with a quick-change welding head. The ultrasonic welding machine comprises a machine base, a lifting power cylinder and a welding head, the lifting power cylinder is installed on the machine base, a piston rod of the lifting power cylinder is connected with the welding head, the piston rod of the lifting power cylinder is connected to a lifting block, the lifting block is fixed to a sliding plate, and the sliding plate is connected to a vertical rail of the machine base in a sliding fit mode. A connecting base is detachably installed at the bottom of the lifting block, a jacking and fixing mechanism used for jacking and fixing the connecting base is installed on one side of the lifting block, the jacking and fixing mechanism is connected with the welding head, a buffering piece is connected between the machine base and the sliding plate, and a stroke limiting mechanism is installed on the machine base. The welding head is fixedly connected through the connecting seat, the connecting seat with the welding head is quickly connected to the piston rod of the lifting power cylinder through the jacking and fixing mechanism, and the downward moving stroke of the welding head is controlled through the stroke limiting mechanism. The disassembly and assembly efficiency of the welding head is improved.

Description

Technical Field

[0001] The utility model relates to the field of ultrasonic welding machines, in particular to a welding head quick-change type ultrasonic welding machine. Background Art

[0002] Ultrasonic welding machine is a kind of equipment that generates 20KHz (or 15KHz) high-voltage high-frequency signal by generator, converts the signal into high-frequency mechanical vibration through transducer system, applies it to plastic product workpiece, raises the temperature through friction between the workpiece surface and molecules, and makes the workpiece interface melt quickly to achieve the purpose of welding. However, the efficiency of replacing welding head of existing ultrasonic welding machine is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to solve the technical problem described in the background technology, the utility model provides a welding head quick-change ultrasonic welding machine. The welding head is fixedly connected by a connecting seat, the connecting seat with the welding head is quickly connected to the piston rod of the lifting power cylinder by a top fixing mechanism, and the stroke of the welding head moving downward is controlled by a stroke limiting mechanism. The application improves the efficiency of disassembly and assembly of the welding head.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A welding head quick-change ultrasonic welding machine includes a machine base, a lifting power cylinder, and a welding head. The machine base is equipped with a lifting power cylinder, the piston rod of the lifting power cylinder is connected to the welding head, the piston rod of the lifting power cylinder is connected to the lifting block, the lifting block, the lifting block is fixed on a slide, the slide is slidably connected to the vertical track of the machine base, a connecting seat is detachably installed at the bottom of the lifting block, a fixing mechanism for tightening the connecting seat is installed on one side of the lifting block, the fixing mechanism is connected to the welding head, a buffer is connected between the machine base and the slide, a stroke limiting mechanism is installed on the machine base, and the stroke limiting mechanism is connected to the slide.

[0006] Specifically, the piston rod end of the lifting power cylinder is connected to a connecting rod through a pressure sensor, and the tail end of the connecting rod is connected to the lifting block.

[0007] Specifically, the connecting seat includes a base plate, a slider, a U-shaped block, and a tightening screw. The slider is fixed to the upper end of the base plate, and the U-shaped block is fixed to the bottom end of the base plate. The U-shaped block is threadedly connected with a tightening screw for tightening the welding head, and a sliding groove is provided at the bottom of the lifting block for cooperating with the slider.

[0008] Specifically, the stroke limiting mechanism includes a screw and a limit plate. A threaded hole is provided in the limit plate. The screw is threadedly connected to the threaded hole of the limit plate. The screw passes through a through hole on the top plate of the base. The width of the limit plate is greater than the diameter of the through hole. The limit plate is located above the top plate of the base.

[0009] Specifically, the fixing mechanism includes a base block, a handle, a cam, a top block, a spring, and a magnet. The base block is fixed on one side of the lifting block. The base block and the cam are hinged together. One end of the handle is connected to the cam. A through hole is provided in the lifting block. The through hole is connected to a slide groove in the lifting block. A top block for supporting the slider is slidably connected in the through hole. A spring is connected between the top block and the lifting block. A magnet for magnetically attracting the base block is fixed to the bottom of the cam.

[0010] Specifically, the buffer member is a spring.

[0011] The beneficial effects of the utility model are as follows: the utility model provides a welding head quick-change ultrasonic welding machine. The welding head is fixedly connected by a connecting seat, the connecting seat with the welding head is quickly connected to the piston rod of the lifting power cylinder by a top fixing mechanism, and the stroke of the welding head moving downward is controlled by a stroke limiting mechanism. The application improves the disassembly and assembly efficiency of the welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the utility model from a first viewing angle;

[0014] Figure 2 It is a structural schematic diagram of the second viewing angle of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the top fixing mechanism of the utility model;

[0016] In the figure, 1. base, 2. lifting power cylinder, 3. welding head, 4. lifting block, 5. slide plate, 6. connecting seat,

[0017] 7. Top fixing mechanism, 8. Buffer, 9. Stroke limiting mechanism, 10. Connecting rod, 11. Pressure sensor,

[0018] 61. Base plate, 62. Slider, 63. U-shaped block, 64. Tightening screw, 71. Base block, 72. Handle, 73.

[0019] Cam, 74. Top block, 91. Screw, 92. Limit plate. DETAILED DESCRIPTION

[0020] 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.

[0021] Figure 1 It is a structural schematic diagram of the utility model from a first viewing angle; Figure 2It is a structural schematic diagram of the second viewing angle of the utility model; Figure 3 It is a structural schematic diagram of the top fixing mechanism of the utility model.

[0022] As attached Figure 1 As shown, a welding head quick-change ultrasonic welding machine includes a machine base 1, a lifting power cylinder 2, and a welding head 3. The lifting power cylinder 2 is installed on the machine base 1, and the piston rod of the lifting power cylinder 2 is connected to the welding head 3. The piston rod of the lifting power cylinder 2 is connected to the lifting block 4, and the lifting block 4 is fixed on the slide 5. The slide 5 is slidably connected to the vertical track of the machine base 1. A connecting seat 6 is detachably installed at the bottom of the lifting block 4, and a top fixing mechanism 7 for tightening the connecting seat 6 is installed on one side of the lifting block 4. The top fixing mechanism 7 is connected to the welding head 3, and a buffer 8 is connected between the machine base 1 and the slide 5. A stroke limiting mechanism 9 is installed on the machine base 1, and the stroke limiting mechanism 9 is connected to the slide 5.

[0023] The piston rod end of the lifting power cylinder 2 is connected to the connecting rod 10 through the pressure sensor 11, and the tail end of the connecting rod 10 is connected to the lifting block 4.

[0024] The pressure sensor 11 can be used to detect the pressure of the welding head 3 driven by the lifting power cylinder 2 on the product to be welded.

[0025] The connecting seat 6 includes a base plate 61, a slider 62, a U-shaped block 63, and a tightening screw 64. The slider 62 is fixed to the upper end of the base plate 61, and the U-shaped block 63 is fixed to the bottom end of the base plate 61. The U-shaped block 63 is threadedly connected with a tightening screw 64 for tightening the welding head 3. A sliding groove for cooperating with the slider 62 is provided at the bottom of the lifting block 4.

[0026] As attached Figure 2 As shown, the stroke limiting mechanism 9 includes a screw 91 and a limit plate 92. A threaded hole is provided in the limit plate 92. The screw 91 is threadedly connected with the threaded hole of the limit plate 92. The screw 91 passes through the through hole on the top plate of the base 1. The width of the limit plate 92 is greater than the diameter of the through hole. The limit plate 92 is located above the top plate of the base 1.

[0027] As attached Figure 3 As shown, the fixing mechanism 7 includes a base block 71, a handle 72, a cam 73, a top block 74, a spring 1, and a magnet. The base block 71 is fixed to one side of the lifting block 4. The base block 71 and the cam 73 are hinged together. One end of the handle 72 is connected to the cam 73. A through hole is provided in the lifting block 4, and the through hole is connected to the slide groove in the lifting block 4. A top block 74 for supporting the slider 62 is slidably connected in the through hole. A spring 1 is connected between the top block 74 and the lifting block 4. A magnet for magnetically attracting the base block 71 is fixed to the bottom of the cam 73.

[0028] The buffer 8 is a spring. The buffer 8 can slow down the inertia of the welding head 3 when it descends, provide a buffer, and avoid damage to the product when the welding head 3 releases the product.

[0029] The welding head 3 of the present application is installed as follows: first, place the welding head 3 into the two U-shaped blocks 63, and then tighten the top screw 64, which will fix the welding head 3 in the U-shaped block 63. Then, insert the slider 62 of the connecting seat 6 with the welding head 3 installed into the slide groove of the lifting block 4. After insertion, hold the handle 72 and turn the cam 73 downward until the magnet at the bottom of the cam 73 magnetically attracts the metal base block 71. At this time, the cam 73 can push the top block 74, and the top block 74 will press the slider 62 into the slide groove of the lifting block 4, thereby realizing the connection between the welding head 3 and the lifting power cylinder 2.

[0030] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A welding head quick-change ultrasonic welding machine, comprising a machine base (1), a lifting power cylinder (2), and a welding head (3), wherein the lifting power cylinder (2) is mounted on the machine base (1), and the piston rod of the lifting power cylinder (2) is connected to the welding head (3), wherein: The piston rod of the lifting power cylinder (2) is connected to the lifting block (4), the lifting block (4), the lifting block (4) is fixed on the slide plate (5), the slide plate (5) is slidably connected to the vertical track of the machine base (1), a connecting seat (6) is detachably installed at the bottom of the lifting block (4), a top fixing mechanism (7) for tightening the connecting seat (6) is installed on one side of the lifting block (4), the top fixing mechanism (7) is connected to the welding head (3), a buffer (8) is connected between the machine base (1) and the slide plate (5), a stroke limiting mechanism (9) is installed on the machine base (1), and the stroke limiting mechanism (9) is connected to the slide plate (5).

2. The welding head quick-change ultrasonic welding machine according to claim 1, characterized in that: The piston rod end of the lifting power cylinder (2) is connected to the connecting rod (10) via a pressure sensor (11), and the tail end of the connecting rod (10) is connected to the lifting block (4).

3. The welding head quick-change ultrasonic welding machine according to claim 1, characterized in that: The connecting seat (6) comprises a base plate (61), a slider (62), a U-shaped block (63), and a tightening screw (64); the slider (62) is fixed to the upper end of the base plate (61); the U-shaped block (63) is fixed to the lower end of the base plate (61); the U-shaped block (63) is threadedly connected with a tightening screw (64) for tightening the welding head (3); and a sliding groove for matching the slider (62) is provided at the bottom of the lifting block (4).

4. The welding head quick-change ultrasonic welding machine according to claim 1, characterized in that: The stroke limiting mechanism (9) comprises a screw rod (91) and a limiting plate (92). A threaded hole is provided in the limiting plate (92). The screw rod (91) and the threaded hole of the limiting plate (92) are threadedly connected together. The screw rod (91) passes through a through hole on the top plate of the machine base (1). The width of the limiting plate (92) is greater than the diameter of the through hole. The limiting plate (92) is located above the top plate of the machine base (1).

5. The welding head quick-change ultrasonic welding machine according to claim 3, characterized in that: The fixing mechanism (7) comprises a base block (71), a handle (72), a cam (73), a top block (74), a spring (1), and a magnet. The base block (71) is fixed to one side of the lifting block (4). The base block (71) and the cam (73) are hinged together. One end of the handle (72) is connected to the cam (73). A through hole is provided in the lifting block (4). The through hole is connected to a slide groove in the lifting block (4). A top block (74) for supporting the slider (62) is slidably connected in the through hole. A spring (1) is connected between the top block (74) and the lifting block (4). A magnet for magnetically attracting the base block (71) is fixed at the bottom of the cam (73).

6. The welding head quick-change ultrasonic welding machine according to claim 1, characterized in that: The buffer member (8) is a spring.

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