A multi-point positioning ultrasonic welding device

Abstract

The present invention relates to the technical field of welding equipment, and in particular to a multi-point positioning ultrasonic welding device. The technical problem is that the adjustment process of the welding position of the frame of the existing ultrasonic welding device for headlights is too complicated, which makes the welding efficiency low and the lamp holder fixing effect is poor, which has an adverse effect on the welding quality of the headlights. A multi-point positioning ultrasonic welding device includes a box frame; two box doors are rotatably connected to the box frame, four movable rollers are provided at the bottom of the box frame, an ultrasonic welding head is provided inside the box frame, a placement box is connected to the box frame, and a lamp holder is placed on the placement box. The positioning rod and the positioning block will contact the lamp holder so that the position of the lamp holder will be corrected. In this way, the position of the lamp holder can be quickly corrected, the work efficiency can be improved, and the lamp holder can be more comprehensively restricted to improve the welding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to a multi-point positioning ultrasonic welding device. Background Art

[0002] Ultrasonic welding uses high-frequency vibration waves to transfer energy between the two surfaces being welded. Under applied pressure, the surfaces rub against each other, promoting fusion between the molecular layers. This welding technique is widely used in welding plastic products. In the production of automotive lights, the lamp holder, which houses the bulb, must be welded to the lamp housing. To ensure a good airtightness inside the lamp, ultrasonic welding is often used to complete this process.

[0003] However, existing ultrasonic welding devices for headlights have several problems. The process of adjusting the welding position of the vehicle frame during the welding operation is complex, resulting in low welding efficiency. Furthermore, the fixture of the lamp frame is poorly secured, negatively impacting the welding quality of the headlight. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing ultrasonic welding device for headlights, such as the complicated process of adjusting the welding position of the frame, which leads to low welding efficiency and poor lamp frame fixing effect, thus adversely affecting the welding quality of the headlights, the technical problem to be solved is: to provide a multi-point positioning ultrasonic welding device that can quickly correct the position of the lamp frame, improve work efficiency, and more comprehensively restrict the lamp frame to improve welding quality.

[0005] The technical implementation scheme of the present invention is: a multi-point positioning ultrasonic welding device, including a box frame, two box doors are rotatably connected to the box frame, four movable rollers are provided at the bottom of the box frame, an ultrasonic welding head is provided inside the box frame, a placement box is connected inside the box frame, a lamp holder is placed on the placement box, the lamp holder is covered with a lamp shell, and a horizontal positioning mechanism and a vertical positioning mechanism are provided inside the placement box.

[0006] In addition, it is particularly preferred that the lateral positioning mechanism includes a positioning rod, two positioning rods are slidably connected to the placement box, a servo motor is fixedly connected inside the placement box, a column gear 1 is fixedly connected to the output shaft of the servo motor, and two racks are slidably connected inside the placement box, the two racks are respectively fixedly connected to the two positioning rods, and the two racks are both engaged with the column gear 1.

[0007] In addition, it is particularly preferred that the vertical positioning mechanism includes a guide rod, two guide rods are fixedly connected to the two positioning rods respectively, four positioning blocks are slidably connected to the placement box, each positioning block is fixedly connected to a guide column at the bottom, and every two guide columns are slidably connected to the two guide rods respectively.

[0008] In addition, it is particularly preferred that a straight groove is provided on the guide rod for the guide column to slide.

[0009] In addition, it is particularly preferred that a correction mechanism is also included, which is arranged on the placement box. The correction mechanism is used to assist in positioning the lamp housing. The correction mechanism includes a multi-stage sleeve hydraulic cylinder. Four multi-stage sleeve hydraulic cylinders are fixedly connected in the placement box. Four correction rods are slidingly connected to the placement box. The four correction rods are respectively fixedly connected to the first telescopic rods of the four multi-stage sleeve hydraulic cylinders, and correction blocks are fixedly connected to the four correction rods.

[0010] In addition, it is particularly preferred that a pressing mechanism is also included, and the pressing structure is arranged on the placement box, and the pressing structure is used to further correct the position of the lamp shell, and the pressing mechanism includes a slider, and the four correction rods are slidably connected to the slider, and each slider is rotatably connected to the sleeve rod, and each sleeve rod is fixedly connected to the column gear 2, and four gear rods are fixedly connected to the placement box, and the four gear rods are respectively engaged with the four column gear 2, and each sleeve rod is slidably connected to a pressure rod, and a pressure spring is connected between the pressure rod and the sleeve rod, and each pressure rod is fixedly connected to two limit columns, and the second telescopic rods of the four multi-stage sleeve hydraulic cylinders are fixedly connected to a transmission frame, and the four transmission frames are respectively rotatably connected to the four sleeve rods, and four positioning frames and four guide frames are fixedly connected in the placement box.

[0011] Furthermore, it is particularly preferred that a raised portion is provided on the guide frame.

[0012] In addition, it is particularly preferred that a rubber pad is further included, and each pressure rod is fixedly connected to a rubber pad.

[0013] The present invention has the following advantages: 1. The movement of the two racks drives the two positioning rods to extend out of the placement box, and the movement of the positioning rods drives the guide rods to move. The movement of the guide rods will squeeze the guide columns. The guide columns will be squeezed by the guide rods and will drive the positioning blocks to move toward the direction close to the lamp holder. In the process of the positioning rods extending out of the placement box, the positioning rods and the positioning blocks will contact the lamp holder, so that the position of the lamp holder will be corrected. In this way, the position of the lamp holder can be quickly corrected, thereby improving work efficiency, and the lamp holder can be more comprehensively restricted, thereby improving welding quality.

[0014] 2. The first telescopic rod of the multi-stage sleeve hydraulic cylinder extends and drives the correction rod to move closer to the lamp housing. During the movement of the correction rod, the correction block on the correction rod will contact the lamp housing, so that the position of the lamp housing will be corrected. In this way, the lamp housing can be quickly positioned in the welding area of ​​the lamp holder, thereby improving welding efficiency.

[0015] 3. The limit column continues to move along the guide frame and is squeezed by the raised part of the guide frame. The limit column will move away from the lamp housing. The movement of the limit column drives the pressure rod to extend into the sleeve rod. The pressure spring is compressed, and the pressure rod drives the rubber pad to move toward the lamp housing, so that the rubber pad will contact the lamp housing. The rubber pad will press the lamp housing toward the lamp holder, making the lamp housing and the lamp holder fit more closely. The pressure rod presses the lamp housing, making the lamp housing and the lamp holder fit more closely, thereby improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the box frame, movable roller and ultrasonic welding head of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the box rack and the placement box of the present invention.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the placement box, lamp holder, pressure rod and lamp housing of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the lamp holder and lamp housing of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the servo motor, rack and column gear of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the positioning rod, rack and guide rod of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the placement box, guide rods and positioning blocks of the present invention.

[0024] Figure 9 It is a schematic diagram of the split three-dimensional structure of the lateral positioning mechanism of the present invention.

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the multi-stage sleeve hydraulic cylinder, the correction rod and the guide frame of the present invention.

[0026] Figure 11 It is a schematic diagram of the three-dimensional structure of the gear rod, column gear 2, pressure rod and positioning frame of the present invention.

[0027] Figure 12 It is a schematic diagram of the disassembled three-dimensional structure of the correction mechanism of the present invention.

[0028] Figure 13 It is a schematic diagram of the three-dimensional structure of the correction rod, slider, sleeve rod and pressure rod of the present invention.

[0029] Figure 14 It is a schematic diagram of the three-dimensional structure of the transmission frame, sleeve rod and column gear 2 of the present invention.

[0030] Figure 15 It is a schematic diagram of the three-dimensional structure of the sleeve rod, pressure rod, limit column and pressure spring of the present invention.

[0031] Figure 16 It is a schematic diagram of the three-dimensional structure of the positioning frame and the leading frame of the present invention.

[0032] The numbers in the figure are: 1: box frame, 2: box door, 3: moving roller, 4: ultrasonic welding head, 5: placement box, 6: lamp frame, 7: lamp housing, 81: positioning rod, 82: servo motor, 83: rack, 84: column gear one, 91: guide rod, 92: positioning block, 93: guide column, 101: multi-stage sleeve hydraulic cylinder, 102: correction rod, 103: correction block, 111: slider, 112: sleeve rod, 113: column gear two, 114: gear rod, 115: pressure rod, 116: pressure spring, 117: limit column, 118: transmission frame, 119: positioning frame, 1110: guide frame, 12: rubber pad. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: A multi-point positioning ultrasonic welding device, such as Figures 1-9 As shown, it includes a box frame 1, two box doors 2 are rotatably connected to the box frame 1, four movable rollers 3 are connected to the bottom of the box frame 1 by bolts, an ultrasonic welding head 4 is provided inside the box frame 1, a placement box 5 is connected inside the box frame 1 by bolts, a lamp holder 6 is placed on the placement box 5, and the lamp holder 6 is covered with a lamp shell 7, and a horizontal positioning mechanism and a vertical positioning mechanism are provided in the placement box 5. The horizontal positioning mechanism is used to correct the position of the lamp holder 6, and the vertical positioning mechanism is used to further correct the position of the lamp holder 6.

[0035] The lateral positioning mechanism includes a positioning rod 81, two positioning rods 81 are slidably connected to the placement box 5, a servo motor 82 is fixedly connected inside the placement box 5, a column gear 84 is fixedly connected to the output shaft of the servo motor 82, and the servo motor 82 is used to drive the column gear 84 to rotate. Two racks 83 are slidably connected inside the placement box 5, and the two racks 83 are respectively connected to the two positioning rods 81 by bolts, and the two racks 83 are both engaged with the column gear 84.

[0036] The vertical positioning mechanism includes a guide rod 91, and two guide rods 91 are respectively connected to the two positioning rods 81 by bolts. Four positioning blocks 92 are slidably connected to the placement box 5. The positioning blocks 92 are used to correct the lamp holder 6. Each positioning block 92 is fixedly connected to a guide column 93 at the bottom, and every two guide columns 93 are respectively slidably connected to the two guide rods 91.

[0037] The guide rod 91 is provided with a slot for the guide column 93 to slide, and the guide rod 91 is used to drive the guide column 93 to move.

[0038] At first, the positioning rod 81 extends into the placement box 5, and the user opens the box door 2. Then, the user places the lamp holder 6 to be processed on the placement box 5. Then, the user controls the output shaft of the servo motor 82 to rotate. The rotation of the output shaft of the servo motor 82 drives the column gear 1 84 to rotate. The rotation of the column gear 1 84 will engage with the two racks 83, so that the two racks 83 will move away from each other. The movement of the two racks 83 drives the two positioning rods 81 to extend out of the placement box 5. The movement of the positioning rod 81 drives the guide rod 91 to move. The movement of the guide rod 91 will squeeze the guide column 93. The guide column 93 is squeezed by the guide rod 91 and drives the positioning block 92 to move toward the lamp holder 6. In the process of the positioning rod 81 extending out of the placement box 5, the positioning rod 81 and the positioning block 92 will contact the lamp holder 6, so that the position of the lamp holder 6 will be corrected. After the two positioning rods 81 are in contact with the lamp holder 6, the servo motor 82 outputs When the shaft stops rotating, the lamp holder 6 will be restricted by the positioning rod 81 and the positioning block 92. Then, the user covers the lamp housing 7 on the lamp holder 6. The user adjusts the position of the lamp housing 7 so that the lamp housing 7 and the lamp holder 6 fit together. Then, the user turns on the ultrasonic welding head 4 to weld the lamp holder 6 and the lamp housing 7. After welding is completed, the user turns off the ultrasonic welding head 4 and controls the servo motor 82 to reverse and reset. The output shaft of the servo motor 82 reverses and drives the column gear 1 84 to reverse. The column gear 1 84 reverses and drives the two racks 83 to reset. The rack 83 resets and drives the two positioning rods 81 to reset. The positioning rod 81 resets and drives the guide column 93 and the positioning block 92 to reset. The lamp holder 6 is no longer restricted. The user takes out the welded lamp holder 6 and lamp housing 7 to complete a welding operation. In this way, the position of the lamp holder 6 can be quickly corrected, work efficiency can be improved, and the lamp holder 6 can be restricted more comprehensively to improve welding quality.

[0039] Example 2: Based on Example 1, Figures 10-16As shown, a correction mechanism is also included, which is arranged on the placement box 5. The correction mechanism is used to assist in positioning the lamp housing 7. The correction mechanism includes a multi-stage sleeve hydraulic cylinder 101. Four multi-stage sleeve hydraulic cylinders 101 are fixedly connected in the placement box 5. Four correction rods 102 are slidably connected to the placement box 5. The four correction rods 102 are respectively fixedly connected to the first telescopic rods of the four multi-stage sleeve hydraulic cylinders 101. The multi-stage sleeve hydraulic cylinder 101 is used to drive the correction rod 102 to move, and the four correction rods 102 are fixedly connected with correction blocks 103.

[0040] It also includes a pressing mechanism, which is arranged on the placement box 5. The pressing mechanism is used to further correct the position of the lamp housing 7. The pressing mechanism includes a slider 111. The four correction rods 102 are each provided with a slide groove. The four correction rods 102 are slidably connected to the slider 111 in the slide groove. Each slider 111 is rotatably connected to a sleeve rod 112. Each sleeve rod 112 is fixedly connected to a column gear 2 113. Four gear rods 114 are connected to the placement box 5 by bolts. The four gear rods 114 are respectively engaged with the four column gears 2 113. Each sleeve The rods 112 are all slidably connected with pressure rods 115, and pressure springs 116 are connected between the pressure rods 115 and the sleeve rods 112. Each pressure rod 115 is fixedly connected to two limit columns 117. The second telescopic rods of the four multi-stage sleeve hydraulic cylinders 101 are all fixedly connected with transmission frames 118. The four transmission frames 118 are respectively rotatably connected to the four sleeve rods 112. The transmission frames 118 are used to drive the sleeve rods 112 to move. Four positioning frames 119 and four guide frames 1110 are fixedly connected in the placement box 5, and a slide groove is opened on the positioning frame 119.

[0041] The guide frame 1110 is provided with a raised portion for driving the pressing rod 115 to extend into the sleeve rod 112 .

[0042] A rubber pad 12 is also included. Each pressure rod 115 is fixedly connected to a rubber pad 12 to prevent the pressure rod 115 from damaging the lamp housing 7.

[0043] Initially, the four pressure rods 115 face away from the lamp holder 6. After the user places the lamp housing 7 on the lamp holder 6, the user controls the first telescopic rod of the multi-stage sleeve hydraulic cylinder 101 to extend. The extension of the first telescopic rod of the multi-stage sleeve hydraulic cylinder 101 drives the correction rod 102 to move toward the lamp housing 7. The movement of the correction rod 102 drives the correction block 103, the slider 111, the sleeve rod 112, the column gear 2 113 and the pressure rod 115 to move together. During the movement of the column gear 2 113, it will mesh with the gear rod 114. The rotation of the column gear 2 113 will drive the pressure rod 115 to rotate toward the lamp holder 6. The correction rod 102 continues to move. During the movement of the correction rod 102, the correction block 103 on the correction rod 102 will contact the lamp housing 7, making the lamp The position of the housing 7 will be corrected. After the four correction blocks 103 are in contact with the lamp housing 7, the column gear 2 113 and the gear rod 114 are disengaged, and the pressure rod 115 is parallel to the lamp housing 7. The first telescopic rod of the multi-stage sleeve hydraulic cylinder 101 stops extending, and the user controls the second telescopic rod of the multi-stage sleeve hydraulic cylinder 101 to extend. The extension of the second telescopic rod of the multi-stage sleeve hydraulic cylinder 101 drives the transmission frame 118 to move toward the direction of the lamp housing 7. The movement of the transmission frame 118 drives the slider 111 to move along the sliding groove of the correction rod 102 toward the direction of the lamp housing 7. The movement of the slider 111 drives the sleeve rod 112, the pressure rod 115, the column gear 2 113 and the limit column 117 to move together. The movement of the pressure rod 115 will be stuck in the sliding groove of the positioning frame 119 and is affected by the positioning frame 11 9 restriction, the pressure rod 115 cannot rotate, the pressure rod 115 continues to move, the limiting post 117 on the pressure rod 115 will contact the guide frame 1110, the limiting post 117 continues to move along the guide frame 1110, and is squeezed by the raised part of the guide frame 1110, and the limiting post 117 will move in the direction away from the lamp housing 7, and the movement of the limiting post 117 drives the pressure rod 115 to extend into the sleeve rod 112, the pressure spring 116 is compressed, and the pressure rod 115 drives the rubber pad 12 to move in the direction close to the lamp housing 7, so that the rubber pad 12 will contact the lamp housing 7, and the rubber pad 12 will press the lamp housing 7 toward the lamp holder 6, so that the lamp housing 7 and the lamp holder 6 are more fitted. After the limiting post 117 contacts the highest point of the guide frame 1110, the multi-stage sleeve liquid After the second telescopic rod of the pressure cylinder 101 stops extending and the position of the lamp housing 7 is corrected, the user controls the telescopic rod of the multi-stage sleeve hydraulic cylinder 101 to retract and reset. The second telescopic rod of the multi-stage sleeve hydraulic cylinder 101 resets and drives the transmission frame 118 to reset. The transmission frame 118 resets and drives the slider 111, the sleeve rod 112, the pressure rod 115, the column gear 2 113 and the limit column 117 to reset. The limit column 117 resets and disengages from the guide frame 1110. The guide column 93 is no longer squeezed by the guide frame 1110. The pressure spring 116 resets and drives the pressure rod 115 to reset. The pressure rod 115 extends out of the sleeve rod 112, so that the pressure rod 115 and the lamp housing 7 are separated. After the pressure rod 115 and the positioning frame 119 slide groove are separated, the first telescopic rod of the multi-stage sleeve hydraulic cylinder 101 retracts.The first telescopic rod of the multi-stage sleeve hydraulic cylinder 101 is reset, driving the correction rod 102, correction block 103, slider 111, sleeve rod 112, column gear 2 113 and pressure rod 115 to reset. The correction block 103 is reset and disengaged from the lamp housing 7. The column gear 2 113 is meshed with the gear rod 114 again. The column gear 2 113 reverses and drives the pressure rod 115 to reset. After the telescopic rod of the multi-stage sleeve hydraulic cylinder 101 is reset, the user turns on the ultrasonic welding head 4 to perform subsequent welding work. In this way, the lamp housing 7 can be quickly positioned in the welding area of ​​the lamp holder 6, improving welding efficiency. The pressure rod 115 presses the lamp housing 7, making the lamp housing 7 and the lamp holder 6 fit more closely, thereby improving welding quality.

[0044] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A multi-point positioning ultrasonic welding device, characterized in that: The invention comprises a box frame (1), two box doors (2) are rotatably connected to the box frame (1), four movable rollers (3) are provided at the bottom of the box frame (1), an ultrasonic welding head (4) is provided inside the box frame (1), a placement box (5) is connected inside the box frame (1), a lamp holder (6) is placed on the placement box (5), a lamp housing (7) is covered on the lamp holder (6), and a horizontal positioning mechanism and a vertical positioning mechanism are provided inside the placement box (5); The device also includes a correction mechanism, which is arranged on the placement box (5) and is used to assist in positioning the lamp housing (7). The correction mechanism includes a multi-stage sleeve hydraulic cylinder (101), four multi-stage sleeve hydraulic cylinders (101) are fixedly connected in the placement box (5), and four correction rods (102) are slidably connected to the placement box (5). The four correction rods (102) are respectively fixedly connected to the first telescopic rods of the four multi-stage sleeve hydraulic cylinders (101), and the four correction rods (102) are fixedly connected to the four first telescopic rods of the multi-stage sleeve hydraulic cylinders (101). A correction block (103) is fixedly connected to each of the four correction rods (102). The device further comprises a pressing mechanism, the pressing mechanism being arranged on the placement box (5), the pressing mechanism being used for further correcting the position of the lamp housing (7), the pressing mechanism comprising a slider (111), the sliders (111) being slidably connected to the four correction rods (102), the sleeve rods (112) being rotatably connected to each slider (111), the column gear 2 (113) being fixedly connected to each sleeve rod (112), the placement box (5) being fixedly connected to four gear rods (114), the four gear rods (114) being respectively meshed with the four column gear 2 (113) Each sleeve rod (112) is slidably connected to a pressure rod (115), a pressure spring (116) is connected between the pressure rod (115) and the sleeve rod (112), each pressure rod (115) is fixedly connected to two limit columns (117), the second telescopic rods of the four multi-stage sleeve hydraulic cylinders (101) are fixedly connected to a transmission frame (118), the four transmission frames (118) are rotatably connected to the four sleeve rods (112), and four positioning frames (119) and four guide frames (1110) are fixedly connected in the placement box (5).

2. A multi-point positioning ultrasonic welding device according to claim 1, characterized in that: The lateral positioning mechanism includes a positioning rod (81), two positioning rods (81) are slidably connected to the placement box (5), a servo motor (82) is fixedly connected in the placement box (5), a column gear 1 (84) is fixedly connected to the output shaft of the servo motor (82), and two racks (83) are slidably connected in the placement box (5), the two racks (83) are respectively fixedly connected to the two positioning rods (81), and the two racks (83) are both meshed with the column gear 1 (84).

3. A multi-point positioning ultrasonic welding device according to claim 2, characterized in that: The vertical positioning mechanism includes a guide rod (91), two guide rods (91) are fixedly connected to the two positioning rods (81), four positioning blocks (92) are slidably connected to the placement box (5), and the bottom of each positioning block (92) is fixedly connected to a guide column (93), and every two guide columns (93) are slidably connected to the two guide rods (91).

4. A multi-point positioning ultrasonic welding device according to claim 3, characterized in that: The guide rod (91) is provided with a slot for the guide column (93) to slide.

5. A multi-point positioning ultrasonic welding device according to claim 4, characterized in that: A raised portion is provided on the guide frame (1110).

6. The multi-point positioning ultrasonic welding device according to claim 5, characterized in that: A rubber pad (12) is also included, and each pressure rod (115) is fixedly connected to the rubber pad (12).

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