A welding assist ram and welding module

Abstract

The utility model discloses a kind of welding auxiliary pressure head and welding module, welding auxiliary pressure head includes pressure head body, along length direction includes and installs department, and pressing portion includes welding window, welding window is along the thickness direction and passes through pressing portion, along the thickness direction, the lower surface of pressing portion defines first pressing surface, and installation hole for being connected with power source is contained in installation department;Elastic pressure head, with installation department is movably connected along the thickness direction, along the thickness direction, the lower surface of elastic pressure head defines second pressing surface, second pressing surface and first pressing surface are not coplanar, and the plane where second pressing surface is higher than the plane where first pressing surface, second pressing surface protrudes on the lower surface of installation department.The welding auxiliary pressure head disclosed in the utility model makes the non-welding area of the piece to be welded be pressed together before welding area, so that its non-welding area and mounting surface are more attached after welding, and the welding quality of the piece to be welded is improved.

Description

Technical Field

[0001] This utility model relates to the field of sensor processing, and in particular to a welding auxiliary pressure head and welding module. Background Technology

[0002] Currently, wheel speed sensors are among the key sensors in vehicles, used in vehicle dynamic control systems, electronic stability programs, anti-lock braking systems, and automatic transmission control systems. A wheel speed sensor typically consists of a chip and a frame for mounting the chip. The chip contains upper and lower pins at different mounting heights. The lower pin, located at the lower position, needs to be soldered to a connector in the frame, while the upper pin, located at the higher position, does not need to be soldered and simply rests on the surface of the frame. In other words, the lower pin of the chip is the soldering area, and the upper pin is the non-soldering area.

[0003] Because there is a certain height difference between the soldering area corresponding to the lower pin of the chip and the non-soldering area corresponding to the upper pin or other parts of the chip, the existing pressing and fixing equipment for the parts to be soldered can only ensure that the soldering area is completely pressed together. This results in the non-soldering area lifting up or having gaps that are not fully attached after the soldering area is completed. This problem not only affects the stability of chip soldering and thus the lifespan of the chip, but may also lead to product scrap. Utility Model Content

[0004] The purpose of this invention is to solve the problem that, in welding, when there is a height difference between the welding area and the non-welding area of ​​the workpiece, the non-welding area will warp after the welding area is completed.

[0005] This utility model provides a welding auxiliary pressure head and welding module, which can help fix the position of the workpiece to be welded during the welding process, ensuring that the non-welding area fits into the welding area first, avoiding the non-welding area from lifting up after welding, solving the aforementioned technical problems, and improving the welding quality of the product.

[0006] Specifically, to solve the above-mentioned technical problems, in a first aspect, an embodiment of this utility model discloses a welding auxiliary pressure head, comprising:

[0007] The pressure head body includes a pressing part and a mounting part along its length. The pressing part includes a welding window that extends through the pressing part along its thickness. Along the thickness, the lower surface of the pressing part defines a first pressing surface. The mounting part includes a mounting hole for connecting to a power source.

[0008] An elastic pressure head is connected to the mounting portion in a manner movably along the thickness direction. Along the thickness direction, the lower surface of the elastic pressure head defines a second pressing surface. The second pressing surface and the first pressing surface are not coplanar, and the plane containing the second pressing surface is higher than the plane containing the first pressing surface. The second pressing surface protrudes from the lower surface of the mounting portion.

[0009] By adopting the above technical solution, for the workpiece to be welded where there is a height difference between the welding area and the non-welding area, the welding area of ​​the workpiece is fixed by pressing and fixing the first pressing surface of the pressing part, and the non-welding area of ​​the workpiece is fixed by pressing and fixing the second pressing surface of the elastic pressing head. At the same time, the second pressing surface is controlled to press onto the workpiece before the first pressing surface, so that the non-welding area is pre-pressed and then the welding area is pressed together. This will make the non-welding area of ​​the workpiece fit more closely to the mounting surface after welding, thereby solving the problem that the non-welding area of ​​the workpiece will lift up during welding.

[0010] Under the elastic force of the elastic pressure head, the non-welded area of ​​the workpiece to be welded is subjected to a downward pressing force in the thickness direction. Because the second pressing surface and the first pressing surface are not coplanar, and the plane where the second pressing surface is located is higher than the plane where the first pressing surface is located, and the second pressing surface protrudes from the lower surface of the mounting part, the non-welded area of ​​the workpiece to be welded is pressed together before the welded area during the pressing process of the pressure head body.

[0011] That is, when pressing the workpiece to be welded using this invention, the second pressing surface of the elastic pressure head first contacts the non-welding area of ​​the workpiece, so that the non-welding area is pre-pressed under the action of elastic force. When pressing down further, after the first pressing surface of the pressing part contacts the welding area of ​​the workpiece, the welding equipment passes through the welding window of the pressing part to weld the workpiece.

[0012] According to another specific embodiment of the present invention, the mounting portion further includes a limiting groove extending along the length direction. The limiting groove includes a first region and a second region located below the first region. Along the width direction, the width of the first region is greater than the width of the second region, and the second region penetrates the lower surface of the mounting portion. The elastic pressure head includes an elastic element and a pressure block. The pressure block includes a connecting section and a pressing section disposed along the thickness direction. The connecting section is limited within the first region, and a portion of the pressing section is limited within the second region. The top end of the elastic element abuts against the top wall of the first region, and the bottom end of the elastic element abuts against the connecting section.

[0013] Using the above technical solution, the limiting groove in the mounting part is used to limit the position of the pressure block in the width direction of the mounting part, while allowing the pressure block to move up and down within a preset range in the thickness direction of the mounting part. At the same time, the mounting position of the pressure block in the length direction of the mounting part can be adjusted according to the position of the non-welding area on the workpiece to be welded.

[0014] In addition, the design of the limiting groove makes it easy to remove the elastic pressure head, so as to facilitate the replacement of elastic components of other specifications, thereby improving the practicality of the welding auxiliary pressure head and the compatibility of fixing the parts to be welded with different pressure requirements.

[0015] In the elastic pressure head, the elastic element makes the mounting part of the pressure block and the pressure head body elastically connected. After the pressure block comes into contact with the non-welding area of ​​the workpiece to be welded, the elastic element gives the pressure block a reaction force, so that the non-welding area is pressed by the pressure block.

[0016] According to another specific embodiment of the present invention, the top surface of the connecting segment is provided with a first countersunk hole, and the bottom end of the elastic member abuts against the bottom wall of the first countersunk hole; the top wall of the first region is provided with a second countersunk hole, and the top end of the elastic member abuts against the top wall of the second countersunk hole.

[0017] By adopting the above technical solution, the design of the first countersunk hole on the upper surface of the pressure block and the second countersunk hole on the top wall of the limiting groove fixes the positions of both ends of the elastic element in the elastic pressure head, preventing the elastic element from detaching from its pressing position after the elastic force is released. At the same time, the countersunk hole design can increase the compatibility with elastic elements of different specifications, further improving the practicality of the welding auxiliary pressure head.

[0018] According to another specific embodiment of the present invention, both the second pressing surface and the first pressing surface include at least one.

[0019] By adopting the above technical solution, multiple pressing surfaces can press one-to-one against multiple welding areas and multiple non-welding areas of the workpiece to be welded, which can improve the stability of fixing the workpiece to be welded and the uniformity of applying pressure to different positions on the workpiece to be welded, thereby further improving the practicality of the welding auxiliary pressure head.

[0020] According to another specific embodiment of the present invention, the periphery of the welding window is defined as the first pressing surface.

[0021] By adopting the above technical solution, the first pressing surface is set on the periphery of the welding window, which can fix the welding adjacent area around the welding point and avoid the occurrence of incomplete welding due to the adjacent area around the welding point not being completely fixed, thereby improving the welding quality.

[0022] According to another specific embodiment of the present invention, the bottom surface of the mounting part and the side surface of the pressing part are connected by an inclined surface.

[0023] By adopting the above technical solution, a slope transition is provided between the bottom surface of the mounting part and the side surface of the pressing part. On the one hand, this facilitates the connection between the two, and on the other hand, the slope can be used to press other surfaces of the workpiece to be welded that need to be pressed and fixed, further expanding the application range of the pressure head body.

[0024] According to another specific embodiment of the present invention, a plurality of second pressing surfaces are spaced apart, and a plurality of first pressing surfaces are spaced apart.

[0025] Using the above technical solution, whether it is the second pressing surface at the bottom of the pressure block or the first pressing surface at the bottom of the pressing part, after the welding area and non-welding area of ​​the workpiece to be welded are fixed, the temperature of the first pressing surface and the second pressing surface will rise due to the radiation or direct conduction of the high temperature of welding during welding. By setting multiple first pressing surfaces and multiple second pressing surfaces at intervals, that is, by setting grooves between two adjacent first pressing surfaces or two adjacent second pressing surfaces, the grooves can increase the air flow, which is conducive to the heat dissipation of the first pressing surface and the second pressing surface.

[0026] In addition, multiple non-welded areas or multiple welded areas of the workpiece to be welded can be set to correspond one-to-one with multiple second pressing surfaces and multiple first pressing surfaces, which helps to improve the stability of pressing the non-welded areas or non-welded areas.

[0027] According to another specific embodiment of this utility model, the elastic element is any one of a compression spring or a rubber block.

[0028] Using the above technical solution, either a compression spring or a rubber block can provide elasticity. Different elastic components correspond to different usage environments, thereby improving the practicality of the welding auxiliary pressure head.

[0029] Secondly, embodiments of this utility model also disclose a welding module designed based on the aforementioned welding auxiliary pressure head, the welding module further comprising:

[0030] A power source is used to connect to the mounting hole of the pressure head body to control the welding auxiliary pressure head to move in the thickness direction;

[0031] Positioning element, including a receiving cavity for accommodating the workpiece to be welded;

[0032] The workpiece to be welded includes a welding area and a non-welding area, wherein the non-welding area is higher than the welding area; the first pressing surface is used to press against the welding area, and the second pressing surface is used to press against the non-welding area.

[0033] By adopting the above technical solution, the welding module has the functions of positioning the workpiece to be welded, pressing down and fixing the workpiece to be welded, and then cooperating with the welding equipment for welding. This allows for accurate positioning of the workpiece to be welded, so that the welding area and non-welding area on the workpiece to be welded are pressed and adhered to each other, which helps to improve the welding quality of the workpiece to be welded. Attached Figure Description

[0034] Figure 1 A three-dimensional structural diagram of the specially shaped chip involved in this application is shown;

[0035] Figure 2 This diagram illustrates the relative position between the welding auxiliary pressure head and the workpiece to be welded in an embodiment of this application.

[0036] Figure 3 This invention provides a three-dimensional structural schematic diagram of the welding auxiliary pressure head in an embodiment of this application.

[0037] Figure 4 This diagram illustrates the working state of the welding auxiliary pressure head in an embodiment of this application.

[0038] Figure 5 This invention provides a three-dimensional exploded view of the welding module in an embodiment of this application.

[0039] Figure 6 A three-dimensional structural schematic diagram of the pressure head body in an embodiment of this application is shown;

[0040] Figure 7 A three-dimensional structural diagram of the pressure block in an embodiment of this application is shown.

[0041] In the picture:

[0042] 10: Indenter body;

[0043] 11: Pressing part; 111: Welding window; 112: First pressing surface;

[0044] 12: Mounting section; 121: Limiting groove; 1211: First area; 1212: Second area; 122: Mounting hole; 123: Second countersunk hole;

[0045] 20: Elastic pressure head; 21: Elastic element; 22: Pressure block;

[0046] 221: Connecting section; 2211: First countersunk hole;

[0047] 222: Crimping section; 2221: Second pressing surface;

[0048] 30: Positioning element; 301: Receiving cavity;

[0049] 40: Chip; 401: Soldering area; 402: Non-soldering area. Detailed Implementation

[0050] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived from this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0051] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", "top", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0053] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0054] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0055] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0056] Wheel speed sensors typically consist of a chip and a frame that mounts the chip, such as Figure 1The image shows a specially shaped chip required for a wheel speed sensor. It includes a lower pin (located at a lower position) and an upper pin (located at a higher position). The lower pin needs to be soldered to a tab in the frame, while the upper pin does not need to be soldered and simply rests on the surface of the frame. In other words, the lower pin is located in the soldering area, while the upper pin is located in the non-soldering area. Because the lower pin is positioned lower than the upper pin, conventional soldering may cause the upper pin to lift up or create a gap between the upper pin and the frame surface.

[0057] Therefore, this application discloses a welding auxiliary pressure head that presses the lower pin and the upper pin of the chip 40 respectively, and the upper pin is pressed before the lower pin, so as to ensure that the upper pin of the non-welding area 402 will not lift up during welding.

[0058] Specifically, such as Figure 2 As shown in the embodiment of this application, a welding auxiliary pressure head is provided, including a pressure head body 10 and an elastic pressure head 20. The pressure head body 10 includes a pressing part 11 and a mounting part 12 along the length direction. The pressing part 11 includes a welding window 111, which penetrates the pressing part 11 along the thickness direction. Along the thickness direction, the lower surface of the pressing part 11 defines a first pressing surface 112. The mounting part 12 includes a mounting hole 122 for connecting to a power source. The elastic pressure head 20 is movably connected to the mounting part 12 along the thickness direction. Along the thickness direction, the lower surface of the elastic pressure head 20 defines a second pressing surface 2221. The second pressing surface 2221 and the first pressing surface 112 are not coplanar, and the plane where the second pressing surface 2221 is located is higher than the plane where the first pressing surface 112 is located. The second pressing surface 2221 protrudes from the lower surface of the mounting part 12.

[0059] like Figure 2 As shown, the aforementioned thickness direction is the Z direction in the figure, the aforementioned length direction is the X direction in the figure, and the width direction is the Y direction in the figure.

[0060] As described above, for a chip 40 with a height difference between the soldering area 401 and the non-soldering area 402, the soldering area 401 of the chip 40 is fixed by pressing the first pressing surface 112 of the pressing part 11, and the non-soldering area 402 of the chip 40 is fixed by pressing the second pressing surface 2221 of the elastic pressing head 20. At the same time, the second pressing surface 2221 is controlled to press the chip 40 before the first pressing surface 112, so that the non-soldering area 402 is pre-pressed and then the soldering area 401 is pressed. This will make the non-soldering area 402 of the chip 40 fit more closely to the mounting surface after it is soldered, thereby solving the problem that the non-soldering area 402 of the chip 40 will lift up during soldering.

[0061] In this embodiment, under the elastic force of the elastic pressure head 20, the non-welded area 402 of the chip 40 is subjected to a downward pressing force in the thickness direction. Because the second pressing surface 2221 and the first pressing surface 112 are not coplanar, and the plane where the second pressing surface 2221 is located is higher than the plane where the first pressing surface 112 is located, and the second pressing surface 2221 protrudes from the lower surface of the mounting portion 12, the non-welded area 402 of the chip 40 will be pressed together before the welded area 401 during the pressing process of the pressure head body 10.

[0062] Specifically, in this embodiment of the application, when in use, a cylinder or other power source that can control the movement of the pressure head body 10 along its thickness direction is connected to the mounting hole 122 on the pressure head body 10 to drive the pressure head body 10 to move downward. During the movement, the second pressing surface 2221 contacts the non-welding area 402 of the chip 40 before the first pressing surface 112. The elastic force of the elastic pressure head 20 is used to press the upper pin of the chip 40 onto the surface of the skeleton. The pressure head body 10 is then driven to move downward, and the pressing part 11 of the pressure head body 10 is used to press the lower pin of the chip 40 onto the insert in the skeleton. This completes the fixing action of the entire chip 40. The welding equipment is then allowed to enter from the welding window of the pressing part 11 to connect the lower pin of the chip 40 to the insert.

[0063] In this embodiment, the aforementioned power source can also be a servo motor; that is, this embodiment does not specifically limit the aforementioned power source.

[0064] like Figure 3 As shown, corresponding to the two upper pins and two lower pins of chip 40, this embodiment includes two first pressing surfaces 112 and two pressing surfaces 2221, respectively, to press against the two lower pins and two upper pins of chip 40. In this embodiment, the number of welding areas 401 and non-welding areas 402 of the specific workpiece to be welded, as well as the number of first pressing surfaces 112 and second pressing surfaces 2221, are not specifically limited; the illustrations are merely illustrative.

[0065] It should also be noted that the aforementioned mounting hole 122 can be provided at an appropriate position on the pressing part 11 or the mounting part 12, depending on the actual processing space requirements. Figure 2 The setting on the mounting section 12 is only an example and not a specific limitation. It can be selected according to the actual situation.

[0066] This application embodiment also provides a welding module, which further includes: a power source for connecting to the mounting hole 122 of the pressure head body 10 to control the welding auxiliary pressure head to move in the thickness direction; a positioning member 30, including a receiving cavity 301 for accommodating the workpiece to be welded; the workpiece to be welded includes a welding area 401 and a non-welding area 402, the non-welding area 402 being higher than the welding area 401; a first pressing surface 112 for pressing the welding area 401, and a second pressing surface 2221 for pressing the non-welding area 402.

[0067] By adopting the above technical solution, the welding module has the functions of positioning the workpiece to be welded, pressing down and fixing the workpiece to be welded, and then cooperating with the welding equipment for welding, so as to improve the accuracy of positioning the workpiece to be welded, and make the welding area 401 and the non-welding area 402 on the workpiece to be welded press and fit together, thereby improving the welding quality of the workpiece to be welded.

[0068] Reference Figure 4 and Figure 5 In a wheel speed sensor, the chip 40 needs to be soldered onto a connector, which is fixed to the sensor's frame. Using this application, the frame can be embedded into the receiving cavity 301 of the positioning member 30 to fix the position of the frame. A power source such as a cylinder is connected to the mounting hole 122 of the pressure head body 10 to control the welding auxiliary pressure head to move towards the frame to press the upper pin of the chip 40 against the upper surface of the frame and the lower pin of the chip 40 against the upper surface of the connector. After fixing the positions of the frame, chip 40, and connector, the welding equipment passes through the welding window to weld the lower pin of the chip 40 to the connector. After welding, the cylinder or other power source releases the pressure. This welding module can ensure that the upper pin of the chip 40 will not lift up after welding, i.e., leave the upper surface of the frame, effectively improving the welding quality of the chip 40.

[0069] In practical use, the welding auxiliary pressure head is fixed on the cylinder through the mounting hole 122. The cylinder moves downward with air. During the movement, the second pressing surface 2221 first contacts the upper pin of the chip 40, so that the upper pin of the chip 40 can fit against the skeleton. As the welding auxiliary pressure head continues to press down, the elastic element 21 is compressed, and the first pressing surface 112 presses against the lower pin surface of the chip 40, so that the chip 40 fits perfectly against the skeleton.

[0070] As described above, the welding module of this application embodiment can position the chip 40 and the insert, press and fix them with a welding auxiliary pressure head, and then complete the welding work with the welding equipment. This makes the non-welding area 402 of the chip 40 fit more closely with the skeleton surface after welding, which solves the problem that the non-welding area 402 of the irregularly shaped chip 40 will lift up during welding, and improves the welding quality of the chip 40 in the wheel speed sensor.

[0071] It should be noted that the aforementioned positioning element 30 can also be a connection structure on any mounting surface. Of course, the positioning element 30 can also be fixed to any required work platform. Specifically, positioning holes can be provided on the positioning element 30, and it can be fixed to the work platform using bolts or other connecting parts. This embodiment does not make specific limitations in this regard.

[0072] Specifically, such as Figure 6 As shown, the aforementioned mounting portion 12 also includes a limiting groove 121 extending along the length direction. The limiting groove 121 includes a first region 1211 and a second region 1212 located below the first region 1211. Along the width direction, the width of the first region 1211 is greater than the width of the second region 1212. The second region 1212 penetrates the lower surface of the mounting portion 12.

[0073] In addition, such as Figure 7 As shown, the elastic pressure head 20 includes an elastic element 21 and a pressure block 22. The pressure block 22 includes a connecting section 221 and a pressing section 222 arranged along the thickness direction. The connecting section 221 is confined within a first region 1211, and a portion of the pressing section 222 is confined within a second region 1212. The top end of the elastic element 21 abuts against the top wall of the first region 1211, and the bottom end of the elastic element 21 abuts against the connecting section 221. When the pressing section 222 is not pressing against the upper pin, under the action of the elastic element 21, the bottom surface of the connecting section 221 of the pressure block 22 is in contact with the bottom surface of the first region 1211. When the pressing section 222 presses against the upper pin, there is a certain gap between the bottom surface of the connecting section 221 of the pressure block 22 and the bottom surface of the first region 1211. The size of this gap is related to the compression amount of the elastic element 21, and this embodiment does not specifically limit this.

[0074] The limiting groove 121 in the mounting section 12 is used to limit the position of the pressure block 22 in the width direction of the mounting section 12, while allowing the pressure block 22 to move up and down within a preset range in the thickness direction of the mounting section 12. It also allows adjustment of the mounting position of the pressure block 22 in the length direction of the mounting section 12 according to the position of the non-soldering area 402 on the chip 40. Furthermore, the design of the limiting groove 121 facilitates the removal of the elastic pressure head 20, making it easy to replace with elastic elements 21 of other specifications. This improves the practicality of the welding auxiliary pressure head and its compatibility with fixing chips 40 with different pressure requirements.

[0075] Because the width of the first region 1211 of the mounting groove is greater than the width of the second region 1212 in the width direction, a positive T-shaped groove structure is formed. The upper part of the T-shape, namely the aforementioned first region 1211, is used to limit the position of the connecting section 221 of the pressure block 22, so that the pressure block 22 is positioned in the width direction. In addition, the pressing section 222 of the pressure block 22 can reciprocate within the first region 1211 and the second region 1212 in the thickness direction.

[0076] Specifically, the power for the aforementioned pressure block 22 to move along the thickness direction in the limiting groove 121 is the elastic force of the elastic element 21, which makes the pressure block 22 and the pressure head body 10 elastically connected.

[0077] It should be noted that when not pressed, the aforementioned second pressing surface 2221 protrudes from the bottom surface of the mounting portion 12 of the pressure head body 10. When the elastic member 21 is compressed to its limit position, the second pressing surface 2221 can be flush with the bottom surface of the mounting portion 12; or, when the elastic member 21 is compressed to its limit position, the second pressing surface 2221 can protrude slightly from the bottom surface of the mounting portion 12; or, when the elastic structure is compressed to its limit position, the pressing section 222 of the pressure block 22 penetrates into the second region 1212, that is, the bottom surface of the mounting portion 12 protrudes from the second pressing surface 2221. Specifically, it can be adapted to the structure of the actual chip 40 or the fixed surface structure of the chip 40, or adapted to the requirements of the actual spatial position or the requirements of the non-contact surface pressure.

[0078] It is understandable that similar chips 40 of different sizes and thicknesses require different pressure during soldering, or other chips 40 may include one or more pins, in which case it is necessary to replace the elastic element 21 with the corresponding elastic force and the pressure block 22 with the corresponding structure.

[0079] According to another specific embodiment of this utility model, such as Figure 6 and Figure 7 As shown, the top surface of the connecting section 221 of the pressure block 22 is provided with a first countersunk hole 2211, and the bottom end of the elastic member 21 abuts against the bottom wall of the first countersunk hole 2211; the top wall of the first region 1211 of the limiting groove 121 is provided with a second countersunk hole 123, and the top end of the elastic member 21 abuts against the top wall of the second countersunk hole 123.

[0080] By adopting the above technical solution, the design of the first countersunk hole 2211 on the upper surface of the pressure block 22 and the second countersunk hole 123 on the top wall of the limiting groove 121 fixes the positions of both ends of the elastic element 21 in the elastic pressure head 20, preventing the elastic element 21 from leaving its pressing position after the elastic force is released. At the same time, the countersunk hole design can increase the compatibility with elastic elements 21 of different specifications, further improving the practicality of the welding auxiliary pressure head.

[0081] It should be noted that the number of first countersunk holes 2211 can correspond to the number of elastic elements 21, that is, one elastic element 21 can be placed in one first countersunk hole 2211. In addition, multiple sets of elastic elements 21 can be set in one first countersunk hole 2211. This design not only increases the elastic force of the pressure block 22, thereby helping to improve the pressing ability on the non-soldering area 402 of the chip 40, but also makes the elastic force of the elastic element 21 act evenly on the pressure block 22, so as to improve the uniformity of the elastic force on each position of the pressure block 22.

[0082] It should be noted that in this embodiment, the number of the first countersunk hole 2211 and the second countersunk hole 123 is not specifically limited, and the number of the elastic element 21 is also not specifically limited.

[0083] According to another specific embodiment of the present invention, both the second pressing surface 2221 and the first pressing surface 112 include at least one.

[0084] By adopting the above technical solution, multiple pressing surfaces can press one-to-one against the chip 40, which has multiple welding areas 401 and multiple non-welding areas 402. This can improve the stability of fixing the pins of the chip 40 and the uniformity of applying pressure to different positions on the chip 40, and further improve the practicality of the welding auxiliary pressure head.

[0085] According to another specific embodiment of the present invention, the periphery of the welding window is defined as a first pressing surface 112.

[0086] By adopting the above technical solution, the first pressing surface 112 is set on the periphery of the welding window, which can fix the welding adjacent area around the welding point and avoid the welding point from being incompletely welded due to the adjacent area around the welding point not being completely fixed, thereby improving the welding quality.

[0087] According to another specific embodiment of the present invention, the bottom surface of the mounting part 12 and the side surface of the pressing part 11 are connected by an inclined surface.

[0088] By adopting the above technical solution, a sloped transition is provided between the bottom surface of the mounting part 12 and the side surface of the pressing part 11. This facilitates the connection between the two and allows the sloped surface to be used to press other surfaces of the chip 40 that require pressing and fixing, further expanding the application range of the pressure head body. This sloped transition can be integrally formed with the pressing part 11 and the mounting part 12 of the pressure head body 10, or it can be riveted to the pressing part 11 and the mounting part 12 from both ends using the corresponding structure of the sloped surface. This embodiment does not impose specific limitations on the specific structure corresponding to the sloped surface.

[0089] According to another specific embodiment of the present invention, a plurality of second pressing surfaces 2221 are spaced apart, and a plurality of first pressing surfaces 112 are spaced apart.

[0090] Using the above technical solution, whether it is the second pressing surface 2221 at the bottom of the pressure block 22 or the first pressing surface 112 at the bottom of the pressing part 11, after fixing the welding area 401 and non-welding area 402 of the chip 40, the high temperature of the welding equipment during welding will cause the temperature of the first pressing surface 112 and the second pressing surface 2221 to rise due to radiation or direct conduction. By setting multiple first pressing surfaces 112 and multiple second pressing surfaces 2221 at intervals, that is, by setting grooves between two adjacent first pressing surfaces 112 or two adjacent second pressing surfaces 2221, the grooves can increase the air flow, which is conducive to the heat dissipation of the first pressing surfaces 112 and the second pressing surfaces 2221.

[0091] In addition, multiple non-welded areas 402 or multiple welded areas 401 of the chip 40 can be configured to correspond one-to-one with multiple second pressing surfaces 2221 and multiple first pressing surfaces 112, which helps to improve the stability of pressing the non-welded areas 402 or non-welded areas 402.

[0092] According to another specific embodiment of the present invention, the elastic element 21 is any one of a compression spring or a rubber block.

[0093] Using the above technical solution, either a compression spring or a rubber block can provide elasticity. Different elastic elements 21 correspond to different usage environments, thereby improving the practicality of the welding auxiliary pressure head. Specifically, a compression spring can be used.

[0094] Finally, it should be noted that the component to be soldered in this embodiment can be the aforementioned chip 40, with the soldering area 401 being a portion of the pins of the chip 40 that need to be soldered to the target location, and the non-soldering area 402 being another portion of the pins of the chip 40, other parts of the chip 40 itself that do not need to be soldered, or other parts of the chip 40 that need to be attached to the target location. Of course, in addition to soldering the chip 40, the component to be soldered in this embodiment can also be electronic components on a circuit board, or other products that need to be fixed before soldering. Applications of the same principles in these products are all within the scope of protection of this application.

[0095] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A welding auxiliary pressure head, characterized in that, include: The pressure head body includes a pressing part and a mounting part along its length. The pressing part includes a welding window that extends through the pressing part along its thickness. Along the thickness, the lower surface of the pressing part defines a first pressing surface. The mounting part includes a mounting hole for connecting to a power source. An elastic pressure head is connected to the mounting portion in a manner movably along the thickness direction. Along the thickness direction, the lower surface of the elastic pressure head defines a second pressing surface. The second pressing surface and the first pressing surface are not coplanar, and the plane containing the second pressing surface is higher than the plane containing the first pressing surface. The second pressing surface protrudes from the lower surface of the mounting portion.

2. The welding auxiliary pressure head as described in claim 1, characterized in that, The mounting portion further includes a limiting groove extending along the length direction. The limiting groove includes a first region and a second region located below the first region. Along the width direction, the width of the first region is greater than the width of the second region, and the second region penetrates the lower surface of the mounting portion. The elastic pressure head includes an elastic element and a pressure block. The pressure block includes a connecting section and a pressing section disposed along the thickness direction. The connecting section is limited within the first region, and a portion of the pressing section is limited within the second region. The top end of the elastic element abuts against the top wall of the first region, and the bottom end of the elastic element abuts against the connecting section.

3. The welding auxiliary pressure head as described in claim 2, characterized in that, The top surface of the connecting section is provided with a first countersunk hole, and the bottom end of the elastic element abuts against the bottom wall of the first countersunk hole; the top wall of the first region is provided with a second countersunk hole, and the top end of the elastic element abuts against the top wall of the second countersunk hole.

4. The welding auxiliary pressure head as described in claim 1, characterized in that, Both the second pressing surface and the first pressing surface include at least one.

5. The welding auxiliary pressure head as described in claim 1, characterized in that, The periphery of the welding window is defined as the first pressure surface.

6. The welding auxiliary pressure head as described in claim 1, characterized in that, The bottom surface of the mounting part and the side surface of the pressing part are connected by an inclined surface.

7. The welding auxiliary pressure head as described in claim 1, characterized in that, The plurality of second pressing surfaces are spaced apart, and the plurality of first pressing surfaces are spaced apart.

8. The welding auxiliary pressure head as described in claim 2, characterized in that, The elastic element can be either a compression spring or a rubber block.

9. A welding module, characterized in that, include: Welding auxiliary pressure head as described in any one of claims 1 to 8; A power source is used to connect to the mounting hole of the pressure head body to control the movement of the welding auxiliary pressure head in the thickness direction; Positioning element, including a receiving cavity for accommodating the workpiece to be welded; The workpiece to be welded includes a welding area and a non-welding area, wherein the non-welding area is higher than the welding area; the first pressing surface is used to press against the welding area, and the second pressing surface is used to press against the non-welding area.

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