Tin dispensing device and tin dispensing machine

Abstract

The utility model is applicable to the technical field of semiconductors, and provides a tin dispensing device and a tin dispensing machine, the tin dispensing device comprises a main frame body, a tin supply assembly, a swing adjusting part, a tin pick-up arm group and a height measuring arm group. The tin dispensing machine comprises a rack and a clamp, and further comprises the tin dispensing device. The height measuring arm set is movably arranged on the swing adjusting part, the height position of a product can be measured through the height measuring arm set before the tin dipping arm set conducts tin dipping operation, and then the height position of the product can be measured through the height measuring arm set after the tin dipping arm set dips tin paste from the tin supply assembly. According to the measuring result of the height measuring arm set, the tin dipping height of the tin dipping arm set can be adjusted manually or through the control device, so that tin dipping of the tin dipping arm set is more accurate, and the operation quality of tin dipping is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of semiconductors, and in particular relates to a tinning device and a tinning machine. Background Art

[0002] Die bonding refers to the process of fixing semiconductor chips on products. Before bonding, solder paste or glue is applied to the designated position of the product using tinning equipment, and then the chip is removed from the wafer ring and placed at the position where the solder paste or glue is applied using the die bonding device. However, most existing tinning devices have poor tinning accuracy during operation, which seriously affects the quality and efficiency of die bonding. Utility Model Content

[0003] The utility model aims to provide a tinning device and a tinning machine, aiming to solve the technical problem of poor tinning precision existing in the tinning device in the prior art during the working process.

[0004] The utility model is implemented in this way. In a first aspect, a tinning device is provided, comprising:

[0005] Main frame;

[0006] A tin supply component, arranged on the main frame, for providing and containing solder paste;

[0007] A swing adjustment part is movably arranged on the main frame and spaced apart from the tin supply assembly, and the swing adjustment part has a degree of freedom of rotation around a first axis relative to the main frame;

[0008] a tinning arm group, movably arranged on the swing adjustment part, and having a degree of freedom to move along a first direction relative to the swing adjustment part, wherein the first direction is a direction parallel to the first axis, and the tinning arm group is used to pick up the solder paste in the tin supply assembly and dot print it on the product; and

[0009] The height measuring arm group is movably arranged on the swing adjusting part and has the freedom to move along the first direction relative to the swing adjusting part, and is used for measuring the height position of the product.

[0010] In an optional embodiment, the height measuring arm group includes a height measuring swing arm, a measuring suction head and a flow monitoring unit, the height measuring swing arm is movably connected to the swing adjustment part, and the height measuring swing arm has the freedom to move along the first direction relative to the swing adjustment part, the measuring suction head is arranged at the end of the height measuring swing arm away from the swing adjustment part, the measuring suction head is used to communicate with an external negative pressure device, the flow monitoring unit is connected to the air outlet side of the measuring suction head, and is used to measure the gas flow rate passing through the measuring suction head, the measuring suction head has a closed state in which the internal cavity is separated from the outside and a conducting state in which the internal cavity is connected to the outside, and the measuring suction head can be converted from the closed state to the conducting state after contacting the product.

[0011] In an optional embodiment, the height measuring arm group further includes a first measuring unit, which is disposed on the swing adjusting portion, and is used to detect the height position of the height measuring swing arm when the measuring suction head is in a conducting state.

[0012] In an optional embodiment, the measuring suction head includes a main cylinder, a movable part and a first elastic part, the main cylinder has a first opening and a second opening, the first opening is used to communicate with an external negative pressure device, a part of the movable part is movably arranged in the main cylinder, and the other part extends to the outside of the main cylinder through the second opening to form a measuring end, and the size of the measuring end is smaller than the size of the second opening, the first elastic part is arranged in the main cylinder, at least a part of the first elastic part abuts against the movable part, and the first elastic part is used to make the part of the movable part located in the main cylinder abut against the second opening before contacting the product to close the second opening; at least a part of the measuring end can be pushed into the main cylinder by the product after contacting the product, and at this time, the outer wall of the part of the movable part located in the main cylinder can form an air inlet channel for gas to enter the main cylinder between the side wall of the second opening.

[0013] In an optional embodiment, the tinning arm group includes a tinning swing arm and a tinning needle, the tinning swing arm is movably connected to the swing adjustment part, and the tinning swing arm has the freedom to move along a first direction relative to the swing adjustment part, and the tinning needle is arranged at the end of the tinning swing arm away from the swing adjustment part, and is used to dip the solder paste and perform dot printing.

[0014] In an optional embodiment, a first driving unit is arranged between the swing adjustment part and the height measuring swing arm, and the first driving unit is used to drive the height measuring swing arm to move along the first direction, and a second driving unit is arranged between the swing adjustment part and the tinning swing arm, and the second driving unit is used to drive the tinning swing arm to move along the first direction.

[0015] In an optional embodiment, a second elastic member is further arranged between the swing adjustment part and the height measuring swing arm, and the second elastic member is used to push the height measuring swing arm away from the product when the first driving unit fails or the power is cut off, and a third elastic member is arranged between the swing adjustment part and the tinning swing arm, and the third elastic member is used to push the tinning swing arm away from the product when the second driving unit fails or the power is cut off.

[0016] In an optional embodiment, the tin supply assembly includes a tin tray, a tin supply support seat, a tin tray driving mechanism and a scraper assembly. The tin supply support seat is arranged on the main frame, the tin tray is rotatably arranged on the tin supply support seat and is used to contain the glue liquid, the tin tray driving mechanism is arranged on the tin supply support seat and is used to drive the tin tray to rotate, and the scraper assembly is arranged on the tin supply support seat and is used to scrape the solder paste in the tin tray to make the thickness of the solder paste consistent.

[0017] In an optional embodiment, a camera unit is provided on the main frame, and the camera unit is used to obtain an image of the product after tinning to detect the effect of tinning.

[0018] In a second aspect, a tinning machine is provided, comprising a frame and a clamp, and also comprising any of the tinning devices described above, wherein the tinning device and the clamp are both located on the frame.

[0019] The technical effect of the first aspect of the utility model is: by providing a tin supply assembly on the main frame, and movably providing a swing adjustment part on the main frame, and the tinning arm group and the height measuring arm group are both movably connected to the swing adjustment part, the tinning arm group and the height measuring arm group can swing around the first axis under the drive of the swing adjustment part, and the tinning arm group and the height measuring arm group have the freedom to move along the first direction relative to the swing adjustment part, so that the tinning arm group and the height measuring arm group can also move along the first direction while swinging to perform tinning operation or height measuring operation. Compared with the tinning device in the prior art, by movably providing a height measuring arm group on the swing adjustment part, before the tinning arm group performs the tinning operation, the height position of the product can be measured by the height measuring arm group, and then after the tinning arm group takes the solder paste from the tin supply assembly, the tinning arm group can adjust its own tinning height by manual adjustment or by a control device according to the measurement result of the height measuring arm group, so that the tinning of the tinning arm group is more accurate, thereby improving the tinning operation quality.

[0020] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a tinning device provided in an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the height measuring arm group adopted in the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the pipeline connection between the measuring suction head and the flow monitoring unit in the embodiment of the utility model;

[0025] Figure 4 It is a schematic cross-sectional structure diagram of the measuring suction head used in the embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the tinning arm group used in the embodiment of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the tin supply assembly used in the embodiment of the utility model;

[0028] Figure 7 It is a structural schematic diagram of a tinning machine provided by an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 100, rack; 200, tinning device; 300, fixture; 400, negative pressure device;

[0031] 1. Main frame; 11. Camera unit; 2. Tin supply assembly; 21. Tin supply support seat; 22. Tin tray; 23. Tin tray driving mechanism; 24. Scraper assembly; 3. Swing adjustment unit; 4. Tin dipping arm group; 41. Tin dipping swing arm; 42. Tin point needle; 43. Second driving unit; 5. Height measuring arm group; 51. Height measuring swing arm; 52. Measuring suction head; 521. Main cylinder; 522. Movable part; 523. First elastic part; 524. First opening; 525. Second opening; 53. Flow monitoring unit; 54. First driving unit; 6. Second elastic part; 7. Third elastic part; 8. First measuring unit; 9. Second measuring unit; 10. Third driving unit. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] Please refer to Figure 1As shown, in an embodiment of the utility model, a tinning device is provided, including a main frame 1, a tin supply assembly 2, a swing adjustment part 3, a tinning arm group 4 and a height measuring arm group 5. The tin supply assembly 2 is arranged on the main frame 1, and is used to provide and contain solder paste. The swing adjustment part 3 is movably arranged on the main frame 1, and is spaced apart from the tin supply assembly 2. The swing adjustment part 3 has the freedom to rotate around a first axis relative to the main frame 1. The tinning arm group 4 is movably arranged on the swing adjustment part 3, and has the freedom to move along a first direction relative to the swing adjustment part 3. The first direction is a direction parallel to the first axis. The tinning arm group 4 is used to dip the solder paste in the tin supply assembly 2 and print it on the product. The height measuring arm group 5 is movably arranged on the swing adjustment part 3, and the height measuring arm group 5 has the freedom to move along a first direction relative to the swing adjustment part 3, and is used to measure the height position of the product.

[0038] Specifically, the main frame 1 refers to a supporting component with a certain height. The main frame 1 can be block-shaped, column-shaped, plate-shaped, etc., and the main frame 1 can also be a combination of multiple shapes. The tin supply component 2 refers to a component that can provide and hold solder paste or glue. The swing adjustment part 3 refers to a component with a certain volume. The swing adjustment part 3 can be column-shaped, block-shaped, etc., and the swing adjustment part 3 can also be a combination of multiple shapes. At the same time, the swing adjustment part 3 has the freedom to rotate around the first axis relative to the main frame 1. The first axis can be the axis of the swing adjustment part 3 itself, and the first axis can be set in the vertical direction.

[0039] The tinning arm group 4 refers to a component that can pick up the solder paste or glue liquid in the tin supply component 2, and print the glue liquid or solder paste on the product through its own movement. The height measuring arm group 5 refers to a component that can measure the height position of the product. The tinning arm group 4 and the height measuring arm group 5 are both movably connected to the swing adjustment part 3, and can swing around the first axis driven by the swing adjustment part 3. At the same time, the tinning arm group 4 and the height measuring arm group 5 have the freedom to move along the first direction relative to the swing adjustment part 3, so that the tinning arm group 4 and the height measuring arm group 5 can move along the first direction while swinging to perform tinning operation or height measuring operation.

[0040] The tinning device provided by the embodiment of the utility model is provided with a tin supply component 2 on the main frame 1, and a swing adjustment part 3 is movably provided on the main frame 1, and the tinning arm group 4 and the height measuring arm group 5 are both movably connected to the swing adjustment part 3, and the tinning arm group 4 and the height measuring arm group 5 can swing around the first axis under the drive of the swing adjustment part 3, and the tinning arm group 4 and the height measuring arm group 5 have the freedom to move along the first direction relative to the swing adjustment part 3, so that the tinning arm group 4 and the height measuring arm group 5 can move along the first direction while swinging, so as to perform tinning operation or height measuring operation. Compared with the tinning device in the prior art, a height measuring arm group 5 is movably arranged on the swing adjustment part 3. Before the tinning arm group 4 performs the tinning operation, the height position of the product can be measured by the height measuring arm group 5. Then, the tinning arm group 4 can adjust its own tinning height manually or through a control device according to the measurement result of the height measuring arm group 5, so that the tinning of the tinning arm group 4 is more accurate, the operation quality of the tinning is improved, and the quality and yield rate of the product are improved.

[0041] In one embodiment, see Figure 2 and Figure 3 The height measuring arm group 5 includes a height measuring swing arm 51, a measuring suction head 52 and a flow monitoring unit 53. The height measuring swing arm 51 is movably connected to the swing adjustment part 3, and the height measuring swing arm 51 has the freedom to move along the first direction relative to the swing adjustment part 3. The measuring suction head 52 is arranged at the end of the height measuring swing arm 51 away from the swing adjustment part 3. The measuring suction head 52 is used to communicate with the external negative pressure device. The flow monitoring unit 53 is connected to the air outlet side of the measuring suction head 52 and is used to measure the gas flow rate passing through the measuring suction head 52. The measuring suction head 52 has a closed state in which the internal cavity is separated from the outside and a conducting state in which the internal cavity is connected to the outside, and the measuring suction head 52 can be changed from the closed state to the conducting state after contacting the product.

[0042] Specifically, the height measuring swing arm 51 refers to a component with a certain length. The height measuring swing arm 51 can be rod-shaped, column-shaped or plate-shaped, etc., and the height measuring swing arm 51 can also be a combination of multiple shapes. The height measuring swing arm 51 is movably connected to the swing adjustment part 3, and has the freedom to move along the first direction relative to the swing adjustment part 3. The first direction can be along the vertical direction. The measuring suction head 52 refers to a structure with a certain internal cavity. The measuring suction head 52 has a closed state and a conductive state. The closed state means that the measuring suction head 52 is not connected to the outside world, and the conductive state means that the measuring suction head 52 can be connected to the outside world. The flow monitoring unit 53 refers to a device for measuring the volume or mass of a fluid passing through a pipeline or an open channel per unit time. The flow monitoring unit 53 may include two parts: a sensor and a calculation unit. The calculation unit can calculate the data detected by the sensor and send the result to the processor. The flow monitoring unit 53 may be an electromagnetic flowmeter, a rotor flowmeter, a differential pressure flowmeter or a volumetric flowmeter. An external negative pressure device refers to a device that can generate negative pressure. The external negative pressure device can be a separate component, such as a vacuum pump or a fan. The external negative pressure device can also refer to a piping system that can generate negative pressure, such as a negative pressure piping system in a factory or workshop.

[0043] Since the measuring tip 52 has a closed state and a conducting state, and the measuring tip 52 is connected to the external negative pressure device, the flow monitoring unit 53 is connected to the air outlet side of the measuring tip 52. Therefore, when the measuring tip 52 is not in contact with the product, the measuring tip 52 is in a closed state, and no airflow passes through the measuring tip 52. At this time, the detection value of the flow monitoring unit 53 is generally zero or a smaller value. When the measuring end of the measuring tip 52 is in contact with the product, the measuring tip 52 will switch from the closed state to the conducting state. At this time, under the action of the external negative pressure device, a larger airflow will pass through the measuring tip 52, and the value detected by the flow monitoring unit 53 will increase. Based on the above principle, when measuring the height position of the product, the swing adjustment part 3 can be rotated to drive the height measuring swing arm 51 and the measuring suction head 52 to swing to the upper position of the product, and then the height measuring swing arm 51 is lowered along the first direction to gradually approach the product. When the detection value detected by the flow monitoring unit 53 changes significantly, the height measuring swing arm 51 and the measuring suction head 52 stop moving, and the height position of the height measuring swing arm 51 is recorded. Then, the tinning swing arm 41 also performs tinning according to the above height to ensure the accuracy of the tinning height of the tinning swing arm 41.

[0044] In an alternative embodiment, see Figure 2The height measuring swing arm 51 is slidably connected to the swing adjusting part 3, and a sliding assembly is further provided between the swing adjusting part 3 and the height measuring swing arm 51, and the sliding assembly is provided along the first direction. The sliding assembly can be a slide rail structure, such as a cross roller guide rail, etc., and the sliding assembly can also be a slider guide rail structure, etc., so that the sliding of the height measuring swing arm 51 is more convenient and stable.

[0045] In one embodiment, see Figure 2 , the height measuring arm group 5 also includes a first measuring unit 8, which is arranged on the swing adjusting part 3, and the first measuring unit 8 is used to detect the height position of the height measuring swing arm 51 when the measuring suction head 52 is in the conducting state. Specifically, the first measuring unit 8 refers to a component that can measure the moving distance or position of an object, and the first measuring unit 8 can be a grating reader, a linear encoder, a laser radar sensor, etc. When the measuring suction head 52 is converted from the closed state to the conducting state, the height position of the height measuring arm group 5 can be detected by the first measuring unit 8. The measurement result of the first measuring unit 8 can be read manually, for example, a display screen is provided on the first measuring unit 8. The measurement result of the first measuring unit 8 can also be automatically read by the control unit, at which time the first measuring unit 8 can be electrically connected to the control unit, and the flow monitoring unit 53 can also be electrically connected to the control unit.

[0046] In an alternative embodiment, see Figure 2 The first measuring unit 8 is a grating reader arranged on the swing adjustment part 3. At the same time, a grating ruler for cooperating with the grating reader is also arranged on the height measuring swing arm 51. The cooperation between the grating reader and the grating ruler can make the position measurement of the height measuring swing arm 51 more accurate.

[0047] In one embodiment, see Figure 4 The measuring suction head 52 includes a main cylinder 521, a movable member 522 and a first elastic member 523. The main cylinder 521 has a first opening 524 and a second opening 525. The first opening 524 is used to communicate with an external negative pressure device. A part of the movable member 522 is movably arranged in the main cylinder 521, and the other part extends to the outside of the main cylinder 521 through the second opening 525 to form a measuring end, and the size of the measuring end is smaller than the size of the second opening 525. The first elastic member 523 is arranged in the main cylinder 521, and at least a part of the first elastic member 523 abuts against the movable member 522. The first elastic member 523 is used to make the part of the movable member 522 located in the main cylinder 521 abut against the second opening 525 before contacting the product, so as to close the second opening 525. At least part of the measuring end can be pushed into the main cylinder 521 by the product after contacting the product. At this time, the outer wall of the movable part 522 located in the main cylinder 521 can form an air inlet channel for gas to enter the main cylinder 521 between the side wall of the second opening 525.

[0048] Specifically, the main cylinder 521 refers to a cylindrical component with a certain length, and the main cylinder 521 has a first opening 524 and a second opening 525, and the first opening 524 is used to communicate with an external negative pressure device. The movable member 522 refers to a component with a certain volume, a part of the movable member 522 is movably arranged in the main cylinder 521, and the other part of the movable member 522 extends to the outside of the main cylinder 521 through the second opening 525 to form a measuring end. The movable member 522 can be provided with a blocking portion, and the size of the blocking portion is larger than the size of the second opening 525. Under the push of the first elastic member 523, the blocking portion on the movable member 522 can be close to and abut against the second opening 525, thereby achieving the purpose of blocking the second opening 525, so that the measuring suction head 52 is in a closed state as a whole. When the measuring end of the measuring suction head 52 contacts the product, the part of the movable member 522 outside the main cylinder 521 will be pushed by an external force, at which time the first elastic member 523 will be squeezed, and the blocking part on the movable member 522 will also move away from the second opening 525 so that the second opening 525 is open, and the entire measuring suction head 52 is in a conducting state. The measuring suction head 52 adopts the method of mutual cooperation of the main cylinder 521, the movable member 522 and the first elastic member 523, so that the measuring suction head 52 can be converted from a closed state to a conducting state when in contact with the product, which can make the structure of the measuring suction head 52 simpler and more convenient to use.

[0049] In one embodiment, see Figure 5 The tinning arm group 4 includes a tinning swing arm 41 and a tinning needle 42. The tinning swing arm 41 is movably connected to the swing adjustment part 3, and the tinning swing arm 41 has the freedom to move along the first direction relative to the swing adjustment part 3. The tinning needle 42 is arranged at the end of the tinning swing arm 41 away from the swing adjustment part 3, and is used to dip the solder paste and perform dot printing. Specifically, the tinning swing arm 41 refers to a supporting component with a certain length, and the tinning needle 42 is arranged at the end of the tinning swing arm 41 away from the swing adjustment part 3, so that the tinning needle 42 can move with the tinning swing arm 41. At the same time, by movably connecting the tinning swing arm 41 to the swing adjustment part 3, and the tinning swing arm 41 has the freedom to move along the first direction relative to the swing adjustment part 3, the tinning needle 42 can swing under the drive of the swing adjustment part 3 and the tinning swing arm 41, and can also be lifted and lowered along the first direction under the drive of the tinning swing arm 41, which greatly increases the range of motion of the tinning needle 42, making the use of the entire tinning arm group 4 more convenient.

[0050] In an alternative embodiment, see Figure 5The tinning swing arm 41 is slidably connected to the swing adjustment part 3, and a sliding component is further provided between the swing adjustment part 3 and the tinning swing arm 41, and the sliding component is provided along the first direction. The sliding component can be a slide rail structure, such as a cross roller guide rail, etc., and the sliding component can also be a slider guide rail structure, etc., which can make the tinning swing arm 41 slide along the first direction more convenient and stable.

[0051] In another alternative embodiment, see Figure 5 The swing adjustment part 3 is also provided with a second measuring unit 9, which is used to detect the height position of the tinning swing arm 41. Specifically, the second measuring unit 9 refers to a component that can measure the moving distance or position of an object, and the second measuring unit 9 can be a grating reader, a linear encoder, a laser radar sensor, etc. The setting of the second measuring unit 9 can make the detection of the height position of the tinning swing arm 41 more convenient and more accurate.

[0052] In one embodiment, see Figure 2 and Figure 5 A first driving unit 54 is provided between the swing adjusting part 3 and the height measuring swing arm 51, and the first driving unit 54 is used to drive the height measuring swing arm 51 to move in the first direction, and a second driving unit 43 is provided between the swing adjusting part 3 and the tinning swing arm 41, and the second driving unit 43 is used to drive the tinning swing arm 41 to move in the first direction. Specifically, the first driving unit 54 and the second driving unit 43 both refer to components that drive objects to move, and the first driving unit 54 and the second driving unit 43 can be linear guides, linear cylinders, hydraulic cylinders or voice coil motors, etc. By providing the first driving unit 54 and the second driving unit 43, it is more convenient for the height measuring swing arm 51 and the tinning swing arm 41 to move in the first direction, and it is also more convenient to use the entire tinning device.

[0053] In an alternative embodiment, see Figure 1 The swing adjustment part 3 includes a rotating main shaft and a third driving unit 10 for driving the rotating main shaft to rotate. Specifically, the third driving unit 10 can be a hollow motor, and the rotating main shaft is inserted into the interior of the hollow motor. The first driving unit 54 and the second driving unit 43 can both be voice coil motors. When performing the tinning operation, the tinning needle 42 and the tinning swing arm 41 are driven to move by the hollow motor and the voice coil motor. Compared with the conventional motor cam drive structure, the hollow motor and the voice coil motor are used to cooperate, which can directly apply force to the tinning needle 42 and the tinning swing arm 41, reducing the loss of force during the transmission process and improving work efficiency.

[0054] In one embodiment, see Figure 2 and Figure 5A second elastic member 6 is also provided between the swing adjustment part 3 and the height measuring swing arm 51. The second elastic member 6 is used to push the height measuring swing arm 51 in a direction away from the product. A third elastic member 7 is provided between the swing adjustment part 3 and the tinning swing arm 41. The third elastic member 7 is used to push the tinning swing arm 41 in a direction away from the product. Specifically, the second elastic member 6 and the third elastic member 7 both refer to elastic components with a certain length. The second elastic member 6 and the third elastic member 7 can be springs, tension springs or nitrogen springs. By providing the second elastic member 6 between the swing adjustment part 3 and the height measuring swing arm 51, when the first driving unit 54 fails or the power is cut off, the height measuring swing arm 51 can be pushed in a direction away from the product, so that the height measuring swing arm 51 is automatically reset, thereby avoiding the risk of collision between the height measuring swing arm 51 and the measuring suction head 52 and the product, and improving the safety of the tinning device. Similarly, a third elastic member 7 is provided between the swing adjustment part 3 and the tinning swing arm 41, which can push the tinning swing arm 41 away from the product when the second driving unit 43 fails or the power is cut off, so that the tinning swing arm 41 is automatically reset, avoiding the risk of collision between the tinning swing arm 41 and the tinning needle 42 and the product, thereby improving the safety of the tinning device.

[0055] In an alternative embodiment, see Figure 2 The second elastic member 6 may be an elastic tension spring disposed between the swing adjustment part 3 and the height measuring swing arm 51, one end of the second elastic member 6 is connected to the swing adjustment part 3, the other end of the second elastic member 6 is connected to the height measuring swing arm 51, and the length direction of the second elastic member 6 is parallel to the first direction. The number of the second elastic members 6 may be multiple, for example, two second elastic members 6 are used, and the two second elastic members 6 are respectively located on both sides of the contact portion between the height measuring swing arm 51 and the swing adjustment part 3, so that the force on the height measuring swing arm 51 is more uniform, and the movement of the height measuring swing arm 51 is more stable.

[0056] In another alternative embodiment, see Figure 5 The third elastic member 7 may be an elastic tension spring disposed between the swing adjustment portion 3 and the tinning swing arm 41. One end of the third elastic member 7 is connected to the swing adjustment portion 3 and the other end is connected to the tinning swing arm 41. The length direction of the third elastic member 7 is parallel to the first direction. The number of the third elastic members 7 may be multiple, for example, two third elastic members 7 are used, and the two third elastic members 7 are respectively located on both sides of the contact portion between the tinning swing arm 41 and the swing adjustment portion 3, so that the force on the tinning swing arm 41 is more uniform, and the movement of the tinning swing arm 41 is also more stable.

[0057] In one embodiment, see Figure 6The tin supply component 2 includes a tin tray 22, a tin supply support seat 21, a tin tray driving mechanism 23 and a scraper assembly 24. The tin supply support seat 21 is arranged on the main frame 1. The tin tray 22 is rotatably arranged on the tin supply support seat 21 and is used to contain the glue liquid. The tin tray driving mechanism 23 is arranged on the tin supply support seat 21 and is used to drive the tin tray 22 to rotate. The scraper assembly 24 is arranged on the tin supply support seat 21 and is used to scrape the solder paste in the tin tray 22 to make the thickness of the solder paste uniform.

[0058] Specifically, the tin supply support seat 21 refers to a support component with a certain volume, and the tin supply support seat 21 and the main frame body 1 can be connected by welding, fasteners or clamping. The tin tray 22 refers to a disc-shaped component with a certain accommodating space. The tin tray 22 can have a depression of a certain depth to form the above-mentioned accommodating space. The opening of the tin tray 22 is generally set upward to prevent the solder paste contained in the tin tray 22 from leaking out. The tin tray 22 is rotatably arranged on the tin supply support seat 21, and the tin tray 22 can be rotated relative to the tin supply support seat 21, wherein the rotation direction of the tin tray 22 is generally horizontal. The tin tray 22 can be connected to the tin supply support seat 21 through a rotating shaft, or by arranging a plurality of rollers arranged around the tin tray 22 on the tin supply support seat 21, so that the tin tray 22 can be supported by the rollers while being able to rotate relative to the tin supply support seat 21. The tin pan 22 may be disposed below the outlet of the solder paste container so that the solder paste can flow into the tin pan 22 during operation, thereby replenishing the solder paste in the tin pan 22 .

[0059] The tin tray driving mechanism 23 refers to a component that can drive an object to rotate, for example, it can be a power unit such as a motor, a hydraulic motor, etc. A transmission unit can also be provided between the tin tray driving mechanism 23 and the rotating shaft of the tin tray 22, so that the position selection of the tin tray driving mechanism 23 is more flexible. The scraper assembly 24 refers to a component with a certain volume. The scraper assembly 24 is arranged on the tin supply support seat 21, by extending at least part of the scraper assembly 24 into the tin tray 22 and being spaced from the bottom surface of the tin tray 22. In this way, during the rotation of the tin tray 22, the scraper assembly 24 will scrape the solder paste in the tin tray 22, so that the thickness of the solder paste behind the scraper assembly 24 remains consistent, so that the amount of solder paste picked up by the tin needle 42 each time remains consistent.

[0060] During the operation of the tin supply device, the tin plate 22 is driven to rotate by the tin plate driving mechanism 23, so that a relative movement is generated between the tin plate 22 and the scraper assembly 24, so that the scraper assembly 24 scrapes the solder paste in the tin plate 22, thereby ensuring that the depth of the solder paste after the scraper assembly 24 scrapes remains constant. At this time, the tin-dipping swing arm 41 can dip the solder paste in the area after the scraper assembly 24 scrapes, ensuring that the amount of solder paste dipped by the tin-dipping swing arm 41 is constant each time, thereby ensuring the consistency of the amount of tin dotted by the tin-dipping swing arm 41 each time.

[0061] In one embodiment, see Figure 1 The main frame 1 is provided with a camera unit 11, which is used to obtain the image of the product after tinning to detect the effect of tinning. Specifically, the camera unit 11 refers to a component that can obtain images, wherein the camera unit 11 is usually arranged above the product bonding position. After the tinning arm group 4 prints the solder paste on the product, the processor can obtain the image of the tinning point through the camera unit 11, and then the processor analyzes the image to determine whether the tinning is qualified. When it is found that the tinning is unqualified, an alarm or reminder can be issued to prevent defective products from flowing into the next order.

[0062] In the second aspect, a tinning machine is provided, see Figure 7 , including a frame 100 and a fixture 300, and also including any of the above-mentioned tinning devices 200, the tinning device 200 and the fixture 300 are both located on the frame 100. Specifically, the fixture 300 is used to transport the product and fix the product, and after the product is fixed, the tinning operation can be performed on the product by the tinning device 200. It can be understood that the beneficial effects of the above-mentioned second aspect can refer to the relevant description of the above-mentioned first aspect, and will not be repeated here.

[0063] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A tinning device, characterized in that: include: Main frame; A tin supply component, arranged on the main frame, for providing and containing solder paste; A swing adjustment part is movably arranged on the main frame and spaced apart from the tin supply assembly, and the swing adjustment part has a degree of freedom of rotation around a first axis relative to the main frame; A tinning arm group, movably arranged on the swing adjustment part, and having a degree of freedom to move along a first direction relative to the swing adjustment part, wherein the first direction is a direction parallel to the first axis, and the tinning arm group is used to pick up the solder paste in the tin supply assembly and dot print it on the product; as well as The height measuring arm group is movably arranged on the swing adjusting part and has the freedom to move along the first direction relative to the swing adjusting part, and is used for measuring the height position of the product.

2. The tinning device according to claim 1, characterized in that: The height measuring arm group includes a height measuring swing arm, a measuring suction head and a flow monitoring unit. The height measuring swing arm is movably connected to the swing adjustment part, and the height measuring swing arm has the freedom to move along the first direction relative to the swing adjustment part. The measuring suction head is arranged at the end of the height measuring swing arm away from the swing adjustment part. The measuring suction head is used to communicate with an external negative pressure device. The flow monitoring unit is connected to the air outlet side of the measuring suction head and is used to measure the gas flow rate passing through the measuring suction head. The measuring suction head has a closed state in which the internal cavity is separated from the outside and a conducting state in which the internal cavity is connected to the outside, and the measuring suction head can be transferred from the closed state to the conducting state after contacting the product.

3. The tinning device according to claim 2, characterized in that: The height measuring arm group further includes a first measuring unit, which is disposed on the swing adjusting portion and is used to detect the height position of the height measuring swing arm when the measuring suction head is in a conducting state.

4. The tinning device according to claim 3, characterized in that: The measuring suction head comprises a main cylinder, a movable member and a first elastic member, the main cylinder having a first opening and a second opening, the first opening being used to communicate with an external negative pressure device, a part of the movable member being movably arranged in the main cylinder, and the other part extending outside the main cylinder through the second opening to form a measuring end, and the size of the measuring end is smaller than the size of the second opening, the first elastic member being arranged in the main cylinder, at least a part of the first elastic member abutting against the movable member, the first elastic member being used to make a part of the movable member located in the main cylinder abut against the second opening before contacting the product, so as to close the second opening; at least a part of the measuring end can be pushed into the main cylinder by the product after contacting the product, at which time an outer wall of the part of the movable member located in the main cylinder can form an air inlet channel for gas to enter the main cylinder between the outer wall of the part of the movable member located in the main cylinder and the side wall of the second opening.

5. The tinning device according to claim 2, characterized in that: The tinning arm group includes a tinning swing arm and a tinning needle. The tinning swing arm is movably connected to the swing adjustment part, and the tinning swing arm has the freedom to move along the first direction relative to the swing adjustment part. The tinning needle is arranged at the end of the tinning swing arm away from the swing adjustment part, and is used to dip solder paste and perform dot printing.

6. The tinning device according to claim 5, characterized in that: A first driving unit is arranged between the swing adjustment part and the height measuring swing arm, and the first driving unit is used to drive the height measuring swing arm to move along the first direction. A second driving unit is arranged between the swing adjustment part and the tinning swing arm, and the second driving unit is used to drive the tinning swing arm to move along the first direction.

7. The tinning device according to claim 6, characterized in that: A second elastic member is also arranged between the swing adjustment part and the height measuring swing arm, and the second elastic member is used to push the height measuring swing arm away from the product when the first driving unit fails or the power is cut off. A third elastic member is arranged between the swing adjustment part and the tinning swing arm, and the third elastic member is used to push the tinning swing arm away from the product when the second driving unit fails or the power is cut off.

8. The tinning device according to claim 1, characterized in that: The tin supply assembly includes a tin tray, a tin supply support seat, a tin tray driving mechanism and a scraper assembly. The tin supply support seat is arranged on the main frame. The tin tray is rotatably arranged on the tin supply support seat and is used to contain glue. The tin tray driving mechanism is arranged on the tin supply support seat and is used to drive the tin tray to rotate. The scraper assembly is arranged on the tin supply support seat and is used to scrape the solder paste in the tin tray to make the thickness of the solder paste consistent.

9. The tinning device according to claim 1, characterized in that: The main frame is provided with a camera unit, which is used to obtain the image of the product after tinning to detect the effect of tinning.

10. A tinning machine, characterized in that: It comprises a frame and a clamp, and also comprises a tinning device as described in any one of claims 1 to 9, wherein the tinning device and the clamp are both located on the frame.

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