Automatic macromolecule diffusion welding machine

Abstract

The utility model belongs to the technical field of diffusion welding, and particularly relates to an automatic macromolecule diffusion welding machine which comprises a machine frame, a machine body is arranged on the machine frame, a C-shaped notch is formed in the machine body, an auxiliary machine frame is installed in the machine body, and a driving mechanism, a welding mechanism and a supporting mechanism are installed on the auxiliary machine frame. When the driving mechanism drives the welding mechanism to move, the supporting mechanism enables the welding mechanism to keep stable operation, so that a pressing head of the welding mechanism can be kept parallel in the welding process, the welding mechanism can move more accurately, high-precision welding can be achieved, and the welding efficiency is improved. And therefore, the welding machine has better balance and stability in the production operation process, and the welding precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to diffusion welding technical field, especially relates to an automatic high molecule diffusion welding machine. BACKGROUND

[0002] High molecule diffusion welding is also called diffusion welding, which is a solid-state welding method that workpieces are pressed at high temperature without visible deformation and relative movement.

[0003] The diffusion welding machine is used for forming the end of the workpiece (copper / aluminum foil soft connection) by pressure welding. The existing technology generally adopts the principle of resistance welding: the workpiece is pressed tightly between the upper and lower graphite electrodes (welding head) by the pressing device, a large current is passed between the two electrodes, the workpiece is heated to 60% to 80% of the melting point temperature of the base material, and the workpiece is heated and pressed to make the foil layers pressure-welded together.

[0004] The parallelism of the upper and lower welding pressure heads of the existing molecule welding machine is not enough, or the welding process operation is improper, which can easily cause deformation error, resulting in secondary machining and welding of many precision workpieces, low qualified rate, large parameter control error and high rework rate. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an automatic high molecule diffusion welding machine, which aims to solve the technical problem of the prior art that the parallelism of the upper and lower welding pressure heads of the existing molecule welding machine is not enough, or the welding process operation is improper, which can easily cause deformation error, resulting in secondary machining and welding of many precision workpieces, low qualified rate, large parameter control error and high rework rate.

[0006] To achieve the above-mentioned purpose, the utility model embodiment provides an automatic high molecule diffusion welding machine, which comprises a rack, a machine body is arranged on the rack, a C-shaped notch is formed on the machine body, a sub-rack is installed in the machine body, a driving mechanism, a welding mechanism and a supporting mechanism are installed on the sub-rack, the driving mechanism drives the welding mechanism to move, and the supporting mechanism makes the welding structure run stably;

[0007] The supporting mechanism comprises an upper fixed plate, a lower fixed plate and a sliding plate installed on the sub-rack, four rectangularly distributed guide rods are fixedly installed between the upper fixed plate and the lower fixed plate, a sliding sleeve and a sliding column sleeved in the sliding sleeve are connected to the four corners of the lower fixed plate, the sliding plate is sleeved on the sliding sleeve, the lower end surface of the sliding plate is connected with the welding mechanism, the welding mechanism comprises a lower welding assembly connected with the driving mechanism and an upper welding assembly arranged on the rack; the driving mechanism comprises a pressing motor arranged on the upper fixed plate, a moving body connected with the pressing motor through a lead screw drive, and the moving body penetrates through the lower fixed plate and is connected with the lower welding assembly.

[0008] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, the lower welding assembly comprises a lower connecting plate connected with the sliding plate, and the lower connecting plate is sequentially provided with a lower mounting plate, a lower heating plate, a lower electrode plate and a lower welding head on the bottom surface.

[0009] Four lower air cylinders in a rectangular distribution are fixedly installed between the lower connecting plate and the sliding plate, and the driving end of the lower air cylinder is connected to the top of the lower mounting plate.

[0010] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, the upper welding assembly comprises an upper placement plate arranged on the frame, and the upper placement plate is sequentially provided with an upper mounting plate, an upper heating plate, an upper electrode plate and an upper welding head.

[0011] Four upper air cylinders in a rectangular distribution are fixedly installed between the upper placement plate and the upper mounting plate, and the driving end of the upper air cylinder is connected to the bottom of the upper mounting plate.

[0012] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, the lower welding head is arranged above the upper welding head, and the shape and size of the upper welding head and the lower welding head are matched.

[0013] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, a transformer is arranged at the rear of the auxiliary frame, and the transformer is electrically connected with the upper electrode plate, the lower electrode plate, the upper heating plate and the lower heating plate.

[0014] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, the transformer is connected with the upper heating plate through an upper heating lead wire and connected with the upper electrode through an upper electrode lead wire.

[0015] The transformer is connected with the lower heating plate through a lower heating lead wire and connected with the lower electrode through a lower electrode lead wire.

[0016] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, the side surface of the machine body is provided with a control box, and a single-chip microcomputer control mechanism is arranged in the control box, and the single-chip microcomputer control mechanism is used for controlling the operation of the pressing motor, the upper air cylinder, the lower air cylinder and the transformer.

[0017] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, cross sliding rails connected with the auxiliary frame are arranged on both sides of the moving body, and the cross sliding rails comprise a first sliding rail, a second sliding rail and a sliding body, and the first sliding rail is slidingly connected with the second sliding rail through the sliding body.

[0018] The automatic high polymer diffusion welding machine provided by the embodiment of the utility model has at least one of the following technical effects:

[0019] The automatic high polymer diffusion welding machine provided by the utility model has the following advantages. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description.

[0021] Figure 1 The whole structure schematic diagram of the automatic high polymer diffusion welding machine provided by the embodiment of the utility model is shown in the figure.

[0022] Figure 2 The three-dimensional structure schematic diagram of the automatic high polymer diffusion welding machine provided by the embodiment of the utility model is shown in the figure.

[0023] Figure 3 The structure schematic diagram of the welding mechanism of the automatic high polymer diffusion welding machine provided by the embodiment of the utility model is shown in the figure.

[0024] Figure 4 The structure schematic diagram of the welding mechanism of the automatic high polymer diffusion welding machine provided by the embodiment of the utility model is shown in the figure.

[0025] Figure 5 The structure schematic diagram of the cross slide rail of the automatic high polymer diffusion welding machine provided by the embodiment of the utility model is shown in the figure.

[0026] In the figure, various reference signs are as follows:

[0027] 10, rack;

[0028] 11, body;

[0029] 12, sub-rack;

[0030] 13, drive mechanism; 130, compression motor; 131, moving body; 132, cross slide; 1321, first slide; 1322, second slide; 1323, sliding body

[0031] 14, welding mechanism; 140, lower welding assembly; 1401, lower connecting plate; 1402, lower mounting plate; 1403, lower heating plate; 1404, lower electrode plate; 1405, lower welding head; 1406, lower air cylinder; 141, upper welding assembly; 1411, upper placing plate; 1412, upper mounting plate; 1413, upper heating plate; 1414, upper electrode plate; 1415, upper welding head;

[0032] 15, support mechanism; 150, upper fixed plate; 151, lower fixed plate; 152, sliding plate; 153, guide rod; 155, slide column;

[0033] 16, transformer;

[0034] 17, control box. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] In an embodiment of the present application, as shown in Figures 1-5 The automatic high polymer diffusion welding machine provided by the embodiment of the present application, through the cooperation between the driving mechanism 13, the welding mechanism 14 and the supporting mechanism 15, when in use, the workpiece is placed on the welding structure, the welding mechanism 14 is used to weld the workpiece, the driving mechanism 13 drives the welding mechanism 14 to move at the same time the supporting mechanism 15 makes the welding structure run stably, so that the pressure head of the welding mechanism 14 can keep parallel during the welding process, so that the welding machine has better balance and stability during the production operation, and the welding precision is improved.

[0040] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the present application, the supporting mechanism 15 comprises an upper fixed plate 150, a lower fixed plate 151 and a sliding plate 152 mounted on the auxiliary rack 12, four rectangularly distributed guide rods 153 are fixedly installed between the upper fixed plate 150 and the lower fixed plate 151, a sliding sleeve 154 and a sliding column 155 sleeved in the sliding sleeve 154 are connected at four corners of the lower fixed plate 151, the sliding plate 152 is slidingly sleeved on the sliding sleeve 154, and the lower end surface of the sliding plate is connected with the welding mechanism 14.

[0041] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the utility model, the driving mechanism 13 comprises a pressing motor 130 arranged on the upper fixed plate 150, the pressing motor 130 is drivenly connected with a moving body 131 through a lead screw, and the moving body 131 penetrates through the lower fixed plate 151 and is connected with the lower welding assembly 140. The pressing motor 130 of the embodiment adopts a high-precision servo motor, has excellent positioning accuracy and response speed. The selection of the servo motor considers the maximum pressure, moving speed and inertia of the whole system required in the welding process. A motor with sufficient power margin is selected to ensure stable performance under various working conditions. The lead screw transmission mechanism adopts a high-precision ball screw, has the characteristics of low friction, high efficiency and high precision. The ball screw can accurately convert the rotary motion of the motor into the linear motion of the moving body 131. The lead of the lead screw (i.e. the linear movement distance of the nut when the lead screw rotates one circle) is selected according to the welding requirements to balance the pressure, accuracy and speed. Smaller lead can provide higher pressure and more accurate positioning, but the moving speed will be reduced; larger lead can improve the moving speed, but some pressure and accuracy may be sacrificed. In order to further improve the positioning accuracy, high-precision bearings are installed at both ends of the lead screw to reduce the radial and axial runout. At the same time, a shaft coupling or a speed reducer is installed between the lead screw and the pressing motor 130 to eliminate the gap in the transmission process and improve the system rigidity. The pressing motor 130 and the lead screw transmission system are equipped with a high-resolution encoder for real-time monitoring of the position and speed of the moving body 131. These information is fed back to the control system to form a closed-loop control, ensuring the accuracy and repeatability of the pressing process. The control system can adjust the output of the motor in real time according to the feedback information of the encoder to compensate for possible mechanical errors or external disturbances.

[0042] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the utility model, the welding mechanism 14 comprises a lower welding assembly 140 connected with the driving mechanism 13 and an upper welding assembly 141 arranged on the rack 10, the lower welding assembly 140 comprises a lower connecting plate 1401 connected with the sliding plate 152, and the bottom surface of the lower connecting plate 1401 is sequentially provided with a lower mounting plate 1402, a lower heating plate 1403, a lower electrode plate 1404 and a lower welding head 1405.

[0043] Further, four lower air cylinders 1406 in rectangular distribution are fixedly installed between the lower connecting plate 1401 and the sliding plate 152, the driving end of the lower air cylinder 1406 is connected with the top of the lower mounting plate 1402; through the action of the four lower air cylinders 1406, the micro distance movement of the lower electrode plate 1404 is realized.

[0044] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the utility model, the upper welding assembly 141 comprises an upper placing plate 1411 arranged on the frame 10, and the upper placing plate 1411 is sequentially provided with an upper mounting plate 1412, an upper heating plate 1413, an upper electrode plate 1414 and an upper welding head 1415.

[0045] Further, four upper air cylinders (not shown in the figure) are fixedly arranged between the upper placing plate 1411 and the upper mounting plate 1412 in a rectangular distribution, and the driving end of the upper air cylinder (not shown in the figure) is connected to the bottom of the upper mounting plate 1412. Similarly, through the action of the four upper air cylinders (not shown in the figure), the upper electrode plate 1414 can be moved by a small distance.

[0046] The welding mechanism 14 of the utility model, through additionally setting the upper air cylinder (not shown in the figure) to control the movement of the upper electrode, setting the lower air cylinder 1406 to control the movement of the lower electrode, can more accurately realize the movement of the upper electrode plate 1414 and the lower electrode plate 1404, so that high-precision welding can be realized.

[0047] In the embodiment, the upper welding assembly 141 and the upper welding assembly 141 are pushed downward by the lower air cylinder 1406 to move the lower welding head 1405, so that the welded workpiece is pressed on the upper welding head 1415, so that the welding pressure is uniform, thereby ensuring the welding quality.

[0048] In the embodiment, the lower welding head is arranged above the upper welding head, and the shape and size of the upper welding head and the lower welding head are matched. The size and shape of the lower welding head of the embodiment are matched with the upper welding head, so that uniform pressure distribution can be formed during welding; and the upper welding head and the lower welding head are both made of graphite material, which has good electrical conductivity and can effectively solve the problem of easy oxidation of graphite welding head.

[0049] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the utility model, a transformer 16 is arranged at the rear of the auxiliary frame 12, and the transformer 16 is electrically connected to the upper electrode plate 1414, the lower electrode plate 1404, the upper heating plate 1413 and the lower heating plate 1403. When specifically connected, the lower electrode plate 1404 can be connected to one end of the negative electrode of the transformer 16, and the upper electrode plate 1414 can be connected to one end of the positive electrode of the transformer 16.

[0050] Further, the transformer 16 is connected to the upper heating plate 1413 through upper heating wires and connected to the upper electrode through upper electrode wires; and the transformer 16 is connected to the lower heating plate 1403 through lower heating wires and connected to the lower electrode through lower electrode wires.

[0051] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the utility model, the side of the machine body 11 is provided with a control box 17, a single-chip microcomputer control mechanism is arranged in the control box 17, and the single-chip microcomputer control mechanism is used for controlling the operation of the pressing motor 130, the upper air cylinder (not marked in the figure), the lower air cylinder 1406 and the transformer 16. In this embodiment, power supply is realized through the transformer 16, the upper heating plate 1413 is heated through the upper heating wire, the lower heating plate 1403 is heated through the lower heating wire, and a preheating effect is achieved, then the lower welding head 1405 is moved downward through the pressing motor 130 and the lower air cylinder 1406, while the lower upper welding head 1415 is moved upward through the upper air cylinder (not marked in the figure), and the upper welding head 1415 can weld the workpiece placed with the lower welding head 1405.

[0052] In the automatic high polymer diffusion welding machine according to the preferred embodiment of the utility model, the moving body 131 is provided with cross slide rails 132 connected with the auxiliary frame 12 on both sides, the moving body 131 of this embodiment is fixedly installed on the cross slide rails 132, cooperates with the cross slide rails 132, and the moving body 131 can be accurately linearly moved in the up-down direction. Moreover, the moving body 131 is made of high-strength steel material, so that sufficient rigidity is ensured, and the motion performance and precision of the equipment are improved. The driving of the moving body 131 adopts a high-precision servo motor system, cooperates with a precise screw rod transmission mechanism, and can realize micron-level positioning precision.

[0053] Further, the cross slide rail 132 includes a first slide rail 1321, a second slide rail 1322, and a sliding body 1323, the first slide rail 1321 is slidably connected to the second slide rail 1322 through the sliding body 1323. The first slide rail 1321 and the second slide rail 1322 are symmetrical structures, both of which are consistent in function, and the sliding body 1323 is installed between the first slide rail 1321 and the second slide rail 1322. When the cross slide rail 132 slides, the first slide rail 1321 slides relative to the second slide rail 1322, and the sliding body 1323 functions similarly to the rolling ball structure of a bearing, which is used to reduce the friction when the first slide rail 1321 and the second slide rail 1322 slide. At the same time, when the cross slide rail 132 receives a lateral force, the sliding body 1323 can maintain the structural stability of the first slide rail 1321 and the second slide rail 1322, prevent the first slide rail 1321 and the second slide rail 1322 from displacement change, and ensure the stability during the process of the upper welding head pressing the welding workpiece. The sliding body 1323 is the core component of the entire cross slide rail 132 system, which forms a sliding fit with the first slide rail 1321 and the second slide rail 1322. The sliding body 1323 is made of high-strength, low-expansion coefficient materials, such as high-quality aluminum alloy or engineering plastic, to ensure that it can still maintain high precision even after frequent use. The sliding body 1323 and the track use rollers as rolling elements to improve the lateral force resistance of the cross rail, reduce friction, and improve the smoothness and accuracy of movement. The rollers can be made of high-strength steel or ceramic materials to ensure that they can still maintain good roundness and surface finish after long-term use.

[0054] The first slide rail 1321 of the present application is slidably connected to the second slide rail 1322 through the sliding body 1323, and the sliding body 1323 includes a sliding plate and rollers. The sliding plate is provided with a plurality of sliding holes. The sliding plate is the main structure of the sliding body 1323, and the surface of the sliding plate is precisely polished to reduce the sliding friction between the first slide rail 1321 and the second slide rail 1322. The sliding holes are key structures on the sliding plate, which are arranged in a straight line along the length direction of the sliding plate. The rollers are the core elements of the entire sliding system, and the rollers are installed in the sliding holes (specifically, the rollers pass through the sliding holes and are located in the sliding holes. Since the thickness of the sliding plate is relatively thin and the radius of the rollers is relatively large, the depth of the sliding hole is equal to the thickness of the sliding plate. When the rollers are installed in the sliding hole, the rollers will be exposed and act on the first slide rail 1321 and the second slide rail 1322 to form the cross slide rail 132, which plays a role in reducing friction and bearing load. The rollers are made of high-strength bearing steel or ceramic materials, which have excellent wear resistance and deformation resistance. The surface of each roller is ground with high precision to ensure that it has extremely high roundness and surface finish.

[0055] In summary, the automatic high polymer diffusion welding machine provided by the utility model, through the cooperation between the driving mechanism 13, the welding mechanism 14 and the supporting mechanism 15, when in use, the workpiece is placed on the welding structure, the driving mechanism 13 drives the welding mechanism 14 to move while the supporting mechanism 15 makes the welding structure keep steady operation, so that the welding mechanism 14 can keep the pressure head parallel during the welding process, and the upper cylinder (not marked in the figure) additionally arranged on the welding mechanism 14 controls the movement of the upper electrode, the lower cylinder 1406 controls the movement of the lower electrode, the movement of the upper electrode plate 1414 and the lower electrode plate 1404 can be more accurately realized, so that high-precision welding can be realized, and the welding machine has more balance and stability during the production operation, and the welding precision is improved.

[0056] The above merely describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic polymer diffusion bonding machine characterized by comprising: The utility model provides a welding device, including frame (10), which is provided with fuselage (11) on, the fuselage (11) is formed with the notching of C ” shape, installs the vice frame (12) in the fuselage (11), drive mechanism (13), welding mechanism (14) and support mechanism (15) are installed on the vice frame (12), drive mechanism (13) drives the stable operation of welding mechanism (14) movement while support mechanism (15) makes; Wherein, the support mechanism (15) includes the upper fixed plate (150) installed on the vice frame (12), the lower fixed plate (151) and the sliding plate (152), four rectangular distribution guide rods (153) are fixedly installed between the upper fixed plate (150) and the lower fixed plate (151), the four corners of the lower fixed plate (151) are connected with the sliding sleeve (154) and the slide column (155) slidably sleeved in the sliding sleeve (154), the sliding plate (152) is slidably sleeved on the sliding sleeve (154), and the lower end surface of the sliding plate is connected with the welding mechanism (14), the welding mechanism (14) includes the lower welding assembly (140) connected with the drive mechanism (13) and the upper welding assembly (141) arranged on the frame (10); the drive mechanism (13) includes the compression motor (130) arranged on the upper fixed plate (150), the moving body (131) is driven connected with the compression motor (130) through the screw rod, the moving body (131) passes through the lower fixed plate (151) and is connected with the lower welding assembly (140).

2. The automatic polymer diffusion welding machine according to claim 1, characterized in that, The lower welding assembly (140) includes a lower connecting plate (1401) connected to the sliding plate (152), and a lower mounting plate (1402), a lower heating plate (1403), a lower electrode plate (1404), and a lower welding head (1405) are sequentially arranged on the bottom surface of the lower connecting plate (1401). Four lower air cylinders (1406) are fixedly installed between the lower connecting plate (1401) and the sliding plate (152) in a rectangular distribution, and the driving end of the lower air cylinder (1406) is connected to the top of the lower mounting plate (1402).

3. The automatic polymer diffusion welding machine according to claim 2, characterized in that, The upper welding assembly (141) includes an upper placement plate (1411) arranged on the frame (10), and an upper mounting plate (1412), an upper heating plate (1413), an upper electrode plate (1414), and an upper welding head (1415) are sequentially arranged on the upper placement plate (1411). Four upper air cylinders are fixedly installed between the upper placement plate (1411) and the upper mounting plate (1412) in a rectangular distribution, and the driving end of the upper air cylinder is connected to the bottom of the upper mounting plate (1412).

4. The automatic polymer diffusion bonding machine according to claim 3, wherein The lower welding head is arranged above the upper welding head, and the shape and size of the upper welding head and the lower welding head are matched.

5. The automatic polymer diffusion bonding machine according to claim 4, wherein The rear of the auxiliary frame (12) is provided with a transformer (16), which is electrically connected with the upper electrode plate (1414), the lower electrode plate (1404), the upper heating plate (1413) and the lower heating plate (1403).

6. The automatic polymer diffusion bonding machine according to claim 5, wherein The transformer (16) is connected with the upper heating plate (1413) through an upper heating wire and connected with the upper electrode through an upper electrode wire. The transformer (16) is connected with the lower heating plate (1403) through a lower heating wire and connected with the lower electrode through a lower electrode wire.

7. The automatic polymer diffusion bonding machine of claim 6, wherein, The side of the fuselage (11) is provided with a control box (17), which is provided with a single-chip microcomputer control mechanism, which is used for controlling the operation of the pressing motor (130), the upper air cylinder, the lower air cylinder (1406) and the transformer (16).

8. The automatic polymer diffusion bonding machine according to any one of claims 1 to 7, characterized in that, The two sides of the moving body (131) are provided with cross slide rails (132) connected with the auxiliary frame (12), which include a first slide rail (1321), a second slide rail (1322) and a sliding body (1323), and the first slide rail (1321) is slidably connected with the second slide rail (1322) through the sliding body (1323).

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