Ultrasonic welding machine

Abstract

The utility model relates to an ultrasonic welding machine, relates to the field of ultrasonic welding equipment, and aims to solve the problems of non-stop operation and high labor intensity of a specially-assigned person. The ultrasonic welding machine comprises a rack, a machine table is arranged on the rack, a welding machine body is arranged above the machine table, and the welding machine body is arranged on the rack in a lifting mode in the vertical direction so as to be close to or far away from the machine table; clamping assemblies are arranged on the two sides of the machine table, and a driving assembly for controlling the clamping assemblies to move towards the machine table is arranged on the rack. The clamping assembly can clamp the product so that the position of the product can be fixed. The device has the effect of reducing the labor intensity of operators.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ultrasonic welding equipment, in particular to an ultrasonic welding machine. BACKGROUND

[0002] Ultrasonic welding technology is widely used in industrial production, especially in the welding of plastic products, its high efficiency and environmental protection characteristics make it favored by many enterprises. For example, in the production process of PP box semi-finished product, the ultrasonic welding machine is used to fold the cut panel into a box body, and weld and fix the joint of the box body, so as to improve the sealing performance and structural stability of the box body, and further improve the overall quality and market competitiveness of the PP box product. However, the traditional ultrasonic welding equipment has certain limitations.

[0003] In the existing ultrasonic welding technology, the operation mode usually adopted is that the operator manually places the PP box semi-finished product to be welded on the machine table, manually maintains the state of the PP box to ensure that the joint can be aligned with the welding head in the welding process. In order to achieve the purpose of welding, a basic lifting mechanism is generally provided on the machine table to adjust the distance between the welding head and the joint of the box body; in order to ensure the welding precision, the operator needs to control the position of the PP box at all times to maintain the state to be welded.

[0004] However, the main problem existing in the above-mentioned prior art is that the operator needs to continuously manually maintain the state of the PP box during the welding process, which is high in labor intensity and easy to cause fatigue, especially in long-time and large-batch production tasks, which puts higher requirements on the physical strength and attention of the operator, directly affecting the work efficiency and product quality, and therefore needs to be improved. CONTENT OF THE INVENTION

[0005] In order to reduce the labor intensity of the operator, the present application provides an ultrasonic welding machine.

[0006] The ultrasonic welding machine provided by the present application adopts the following technical scheme:

[0007] An ultrasonic welding machine, comprising a rack, a machine table is provided on the rack, a welding machine body is provided above the machine table, the welding machine body is vertically lifted and arranged on the rack to approach or move away from the machine table; a clamping assembly is provided on both sides of the machine table, a driving assembly for controlling the movement of the clamping assembly to the machine table is provided on the rack; the clamping assembly can clamp the product to fix the position.

[0008] By adopting the above technical scheme, the ultrasonic welding machine can automatically clamp and position the PP box by using the clamping assemblies provided on both sides of the machine table without manual fixing of the PP box to be welded, so that the operator only needs to perform the placement operation in the early stage when the PP box is processed, thereby effectively reducing the labor intensity of the operator.

[0009] Optionally, the clamping assembly comprises a clamping arm and a clamping cushion, the clamping arm is connected with a driving assembly, the driving assembly controls the clamping arm to move towards or away from the machine table, and the clamping cushion is arranged on the side wall of the clamping arm close to the machine table to abut against the product.

[0010] By adopting the above technical scheme, when the operation is needed, the operator places the product on the machine table, the driving assembly drives the clamping arm to move towards the product, the clamping cushion abuts against the product when the clamping arm clamps the product, and finally the position of the product is fixed, thereby reducing the labor intensity of the operator.

[0011] Optionally, a pressure sensor is arranged in the clamping cushion, a controller is arranged on the rack, the pressure sensor and the welding machine body are electrically connected with the controller, the clamping arm clamps the product, the clamping cushion abuts against the product, the pressure sensor is subjected to pressure, transmits the pressure signal to the controller, the controller receives the pressure signal and controls the welding machine body to descend, so as to weld the product clamped by the clamping arm.

[0012] By adopting the above technical scheme, the pressure sensor arranged in the clamping cushion can detect the pressure generated when the clamping arm clamps the product, and transmit the pressure signal to the controller, and the controller controls the welding machine body to descend after receiving the signal, so as to weld the product clamped by the clamping arm, thereby realizing automatic welding control and reducing the labor intensity of the operator.

[0013] Optionally, a distance sensor is pre-embedded on the top wall of the machine table close to the rack and close to the welding machine body, the distance sensor and the driving assembly are electrically connected with the controller, the product is placed on the machine table, the distance sensor sends the distance signal to the controller, the controller receives the distance signal and controls the driving assembly to drive the clamping arm to move towards the machine table to clamp the product.

[0014] By adopting the above technical scheme, when the product is placed on the machine table, the distance sensor detects the existence of the product and sends the distance signal to the controller, and the controller automatically controls the driving assembly to drive the clamping arm to move towards the machine table to clamp the product after receiving the signal, thereby realizing the automatic clamping process and reducing the manual operation demand of the operator, and further reducing the labor intensity of the operator.

[0015] Optionally, the clamping cushion comprises an inner cushion and an outer cushion, the inner cushion is connected with the clamping arm, and the outer cushion is detachably arranged outside the inner cushion; and the pressure sensor is arranged in the inner cushion.

[0016] By adopting the technical scheme, reliable clamping and pressure sensing of the product are realized, the worn outer pad is convenient to replace, the service life of the entire clamping soft pad is prolonged, and the stability and product quality during the welding process are ensured; and the entire clamping soft pad does not need to be replaced.

[0017] Optionally, the cross section of the outer pad is concave, and the end wall of the inner pad facing the outer pad is provided with a guide surface.

[0018] By adopting the technical scheme, the cross section of the outer pad is designed as concave, and the end wall of the inner pad facing the outer pad is provided with a guide surface, so that the outer pad can be quickly installed on the inner pad, and the replacement efficiency is improved.

[0019] Optionally, the driving assembly comprises a driving frame, driving gears, a driving chain, a driving motor and driving blocks, the driving gears are rotationally connected at both ends of the driving frame, the two driving gears are located on both sides of the machine table, the driving chain is engaged on the two driving gears, the driving motor is connected to the driving frame, a driving shaft of the driving motor is connected to one of the driving gears, and the two driving blocks are respectively connected to the upper and lower sides of the driving chain, and each driving block is connected to a clamping arm.

[0020] Optionally, a support guide rod is connected between the two driving gears, and the driving block is provided with a support guide hole away from the connection end of the driving chain, and the driving block is sleeved on the support guide rod through the support guide hole.

[0021] By adopting the technical scheme, the driving block slides along the support guide rod under the driving of the driving chain, the stability and accuracy of the movement of the driving block are improved, and the reliability of the clamping arm clamping the product and the welding precision are improved.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The ultrasonic welding machine can automatically clamp and position the PP box on both sides of the machine table without manual fixing, so that the operator only needs to place the PP box in the early stage during processing, effectively reducing the labor intensity of the operator.

[0024] 2. When the product is placed on the machine table, the distance sensor detects the presence of the product and sends a distance signal to the controller, and the controller automatically controls the driving assembly to drive the clamping arm to move towards the machine table to clamp the product, thereby realizing an automatic clamping process, reducing the need for manual operation of the operator, and thereby reducing the labor intensity of the operator.

[0025] 3. The driving block slides along the support guide rod under the driving of the driving chain, improves the stability and accuracy of the movement of the driving block, and further improves the reliability of the clamping arm clamping the product and the welding accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of an ultrasonic welding machine in the embodiment of the present application.

[0027] Figure 2 is Figure 1 is an enlarged schematic diagram of A in FIG. 1.

[0028] Figure 3 is a sectional view for embodying the specific structure of the clamping soft pad in the embodiment of the present application.

[0029] BRIEF DESCRIPTION OF DRAWINGS: 1, rack; 11, controller; 2, machine table; 21, distance sensor; 3, welding machine body; 4, clamping assembly; 41, clamping arm; 42, clamping soft pad; 421, inner pad; 4211, guide surface; 422, outer pad; 43, pressure sensor; 5, driving assembly; 51, driving frame; 52, driving gear; 53, driving chain; 54, driving motor; 55, driving block; 551, support guide hole; 56, support guide rod. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0031] The embodiment of the present application discloses an ultrasonic welding machine. Referring to Figure 1 , the ultrasonic welding machine comprises a rack 1, a machine table 2 is arranged on the rack 1, a welding machine body 3 is arranged above the machine table 2, and the welding machine body 3 is arranged on the rack 1 in a vertical direction to be close to or away from the machine table 2. Specifically, the clamping assembly 4 is arranged on both sides of the machine table 2, and the clamping assembly 4 can clamp the product to fix the position. The driving assembly 5 is arranged on the rack 1 to drive the clamping assembly 4 to move towards the machine table 2. By arranging the clamping assembly 4 and the driving assembly 5, the product can be automatically clamped and fixed during the welding process, thereby reducing the labor intensity of the operator and improving the automation degree of the equipment.

[0032] Referring to Figure 1 and Figure 2 , the driving assembly 5 comprises a driving frame 51, a driving gear 52, a driving chain 53, a driving motor 54 and a driving block 55. The driving frame 51 is fixed on the rack 1 by welding. In the embodiment, the middle part of the driving frame 51 is connected with the rack 1, and the two sides of the driving frame 51 are located on both sides of the machine table 2.

[0033] The driving gears 52 are rotatably connected to the two ends of the driving frame 51 through shafts, and at this time, the two driving gears 52 are located on the two sides of the machine table 2, and the driving chain 53 is engaged on the two driving gears 52. The driving motor 54 is fixed on the driving frame 51 by bolts, and the driving motor 54 is located on the side of the driving frame 51 away from the welding machine body 3. The driving shaft of the driving motor 54 is connected with one of the driving gears 52. The driving gears 52 and the driving chain 53 have high transmission efficiency and compact structure, and are suitable for efficient transmission in limited space. When the driving motor 54 is started, it drives the driving gear 52 connected with the driving motor 54 to rotate. In this embodiment, the driving motor 54 can be a servo motor, which has high precision and response speed.

[0034] A support guide rod 56 is arranged between the two driving gears 52, and the support guide rod 56 is fixed on the rotating shafts of the two driving gears 52 by bolts. Two driving blocks 55 are connected to the upper and lower sides of the driving chain 53 respectively, and the driving block 55 away from the connection end of the driving chain 53 is provided with a support guide hole 551. The driving block 55 is sleeved on the support guide rod 56 through the support guide hole 551. Through the cooperation between the support guide rod 56 and the driving block 55, the driving block 55 can keep straight during movement, avoiding deviation, so as to achieve more accurate clamping effect. The driving block 55 and the support guide rod 56 are in sliding fit, which ensures that the driving block 55 can still move smoothly under stress.

[0035] Referring to Figure 1 and Figure 3 , the clamping assembly 4 includes clamping arms 41 and clamping soft pads 42. One end of the clamping arm 41 is fixed on the driving block 55 by bolts, and the two driving blocks 55 move along the support guide rod 56 to control the two clamping arms 41 to approach or move away from each other. The clamping arm 41 can be a support plate, which can be made of high-strength alloy steel to ensure that the clamping arm 41 is not easy to deform under stress and has high carrying capacity, thereby stably clamping the PP box.

[0036] The clamping soft pad 42 is arranged on the side wall of the clamping arm 41 close to the machine table 2 to abut against the product. The clamping soft pad 42 includes an inner pad 421 and an outer pad 422. The inner pad 421 and the outer pad 422 can be soft pads made of elastic materials such as silica gel or EVA foam pad. The inner pad 421 is fixed to the clamping arm 41 by adhesion, and the outer pad 422 is detachably sleeved outside the inner pad 421. The cross section of the outer pad 422 is concave, and the end wall of the inner pad 421 facing the outer pad 422 is provided with a guide surface 4211, so that when the outer pad 422 is sleeved, the outer pad 422 and the inner pad 421 are quickly installed.

[0037] The distance sensor 21 is pre-embedded on the top wall of the welding machine body 3 close to the machine table 2 and the rack 1, and the pressure sensor 43 is pre-installed in the inner pad 421, the controller 11 is arranged on the rack 1, the pressure sensor 43 and the welding machine body 3 are electrically connected with the controller 11, and the distance sensor 21 and the driving assembly 5 are electrically connected with the controller 11. The distance sensor 21 can be an ultrasonic radar or a photoelectric sensor, which can accurately measure the distance between the product and the machine table 2 and convert it into an electrical signal transmitted to the controller 11. Based on the feedback distance signal, the controller 11 can accurately control the movement of the driving assembly 5 to ensure that the clamping arm 41 can clamp the product at the right position; the pressure sensor 43 can adopt a micro switch or a pressure sensor, the contact of the micro switch can be closed after receiving a preset pressure, and the controller 11 sends a signal after being powered on; the pressure sensor can detect the actual pressure and transmit the signal according to the actual situation, so that the control is more accurate.

[0038] When the product is placed on the machine table 2, the distance sensor 21 sends a distance signal to the controller 11, and the controller 11 receives the distance signal and controls the driving assembly 5 to drive the clamping arm 41 to move towards the machine table 2 to clamp the product. When the clamping arm 41 clamps the product and the outer pad 422 is tightly contacted with the product, the pressure sensor is pressed, and the pressure signal is transmitted to the controller 11, and the controller 11 receives the pressure signal and controls the welding machine body 3 to descend to weld the product clamped by the clamping arm 41. The clamping state is detected by the pressure sensor 43 to ensure that each clamping point can reach the predetermined clamping force, so that the welding effect is uniform and stable.

[0039] When the welding is completed, the welding machine body 3 rises, and the driving motor 54 drives the clamping arm 41 to release the clamping of the product.

[0040] The implementation principle of the ultrasonic welding machine is that the ultrasonic welding machine realizes the automatic clamping function by reasonably designing the clamping assembly 4 and the driving assembly 5. The operator does not need to manually position the product continuously, which greatly reduces the labor intensity. In addition, through the real-time monitoring of the pressure sensor 43 and the linkage cooperation of the controller 11, the working accuracy and reliability of the equipment are further improved. Overall, this improvement not only improves the production efficiency, but also brings greater safety and comfort to the industrial production environment, and significantly improves the operation experience.

[0041] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An ultrasonic welding machine, comprising a machine frame (1), a machine table (2) arranged on the machine frame (1), and a welding machine body (3) arranged above the machine table (2), the welding machine body (3) being arranged on the machine frame (1) in a vertical direction to be lifted to approach or move away from the machine table (2); characterized in that: The machine table (2) is provided with clamping assemblies (4) on both sides, and the rack (1) is provided with a driving assembly (5) for controlling the movement of the clamping assemblies (4) to the machine table (2); the clamping assemblies (4) can clamp the product to fix the position.

2. An ultrasonic welding machine according to claim 1, characterized in that: The clamping assembly (4) comprises a clamping arm (41) and a clamping soft pad (42), the clamping arm (41) is connected with the driving assembly (5), the driving assembly (5) controls the clamping arm (41) to approach or move away from the machine table (2), and the clamping soft pad (42) is arranged on the side wall of the clamping arm (41) close to the machine table (2) to abut against the product.

3. An ultrasonic welding machine according to claim 2, wherein: The clamping soft pad (42) is provided with a pressure sensor (43), the rack (1) is provided with a controller (11), the pressure sensor (43) and the welding machine body (3) are electrically connected with the controller (11), the clamping arm (41) clamps the product, the clamping soft pad (42) abuts against the product, the pressure sensor is pressed, the pressure signal is transmitted to the controller (11), the controller (11) receives the pressure signal and controls the welding machine body (3) to descend, so as to weld the product clamped by the clamping arm (41).

4. An ultrasonic welding machine according to claim 3, wherein: The top wall of the machine table (2) close to the rack (1) and the welding machine body (3) is pre-embedded with a distance sensor (21), the distance sensor (21) and the driving assembly (5) are electrically connected with the controller (11), the product is placed on the machine table (2), the distance sensor (21) sends a distance signal to the controller (11), the controller (11) receives the distance signal and controls the driving assembly (5) to drive the clamping arm (41) to move to the machine table (2) to clamp the product.

5. An ultrasonic welding machine according to claim 3, wherein: The clamping soft pad (42) comprises an inner pad (421) and an outer pad (422), the inner pad (421) is connected with the clamping arm (41), and the outer pad (422) is detachably arranged outside the inner pad (421); the pressure sensor (43) is arranged in the inner pad (421).

6. An ultrasonic welding machine according to claim 5, wherein: The cross section of the outer pad (422) is concave, and the end wall of the inner pad (421) towards the outer pad (422) is provided with a guide surface (4211).

7. An ultrasonic welding machine according to claim 2, wherein: The driving assembly (5) comprises a driving frame (51), driving gears (52), a driving chain (53), a driving motor (54) and driving blocks (55), the driving gears (52) are rotatably connected at both ends of the driving frame (51), the two driving gears (52) are located on both sides of the machine table (2), the driving chain (53) is engaged on the two driving gears (52), the driving motor (54) is connected to the driving frame (51), the driving shaft of the driving motor (54) is connected with one of the driving gears (52), and the two driving blocks (55) are connected to the upper and lower sides of the driving chain (53), respectively, and each driving block (55) is connected with a clamping arm (41).

8. An ultrasonic welding machine according to claim 7, wherein: Support guide rods (56) connected to the frame (1) are arranged between the two drive gears (52), and the drive blocks (55) are provided with support guide holes (551) away from the connection end of the drive chain (53), and the drive blocks (55) are sleeved on the support guide rods (56) through the support guide holes (551).

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