Positioning and assembling clamp of bar stack array packaging structure

Abstract

The utility model relates to the technical field of semiconductor packaging, in particular to a positioning and assembling clamp of a bar stack array packaging structure, which comprises a bottom plate used for supporting a product to be welded and limiting three side surfaces below an electrode plate of the product; the jacking and pressing assembly is arranged above the to-be-welded product and used for conducting contact pressing on a bar module at the top of the to-be-welded product; the side pressing assembly comprises pressing block assemblies located on the periphery of the to-be-welded product and an adjusting pressing assembly located on one side of the pressing block assemblies, the pressing block assemblies are used for pressing and limiting the side face of a bar module of the to-be-welded product, and the adjusting pressing assembly is used for being matched with the bottom plate to press and limit the remaining side face below the electrode plate; the positioning clamp is used for solving the technical problems that in the prior art, a positioning clamp used for packaging a bar stack array is generally poor in positioning precision and welding quality.

Description

A positioning and assembly fixture for a bar-stretcher array packaging structure Technical Field

[0001] This utility model relates to the field of semiconductor packaging technology, and in particular to a positioning and assembly fixture for a bar array packaging structure. Background Technology

[0002] Semiconductor lasers are stimulated emission devices based on semiconductor materials. They generate coherent laser light through current injection, with wavelengths covering the ultraviolet to far-infrared range. The bar is packaged as a multi-light-point array, and the power can reach the kilowatt level. In particular, when multiple bars are stacked vertically, the power can reach several kilowatts. They are mainly used in industrial cutting or welding scenarios.

[0003] A prior art invention patent, CN101771239B, discloses a planar array laser packaging positioning device. This device includes a base, a laser chip mounted on the base, and positioning devices for a heat sink and secondary heat sink. The positioning devices include vertical clamping devices on both sides of the base and horizontal positioning devices with adjustment mechanisms at both ends of the base. This planar array laser packaging positioning device enables one-time positioning and soldering of the laser chip and the heat sink / secondary heat sink, simplifying the packaging process. However, related technologies, including the aforementioned solution, still have many problems, such as: insufficient positioning accuracy: before soldering, the chip positions of the intermediate substrate and the strip need to be aligned, and assembly requires multiple steps, resulting in low assembly efficiency. This leads to positioning drift caused by high-temperature thermal deformation during soldering, and high-temperature soldering affects the soldering effect of the previous step; poor soldering quality: before vacuum soldering, the components need to be assembled in advance and pre-tightened to prevent insufficient contact between the soldering surfaces, which would affect the soldering effect. Summary of the Invention

[0004] The purpose of this utility model is to provide a positioning and assembly fixture for a bar array packaging structure, which solves the technical problems of poor positioning accuracy and poor welding quality that are common in existing positioning fixtures used for bar array packaging.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A positioning and assembly fixture for a bar-and-socket array packaging structure includes:

[0007] The base plate is used to support the product to be welded and to limit the three sides below the electrode plate.

[0008] The top pressure assembly is positioned above the product to be welded to contact and press the bar module on the top of the product to be welded.

[0009] The side pressure assembly includes a pressure block assembly located around the product to be welded and an adjusting clamping assembly located on one side thereon. The pressure block assembly is used to clamp and limit the side of the bar module of the product to be welded, and the adjusting clamping assembly is used to cooperate with the base plate to clamp and limit the remaining side below the electrode plate.

[0010] Furthermore, the adjusting clamping assembly includes a stop block, which is fixedly installed relative to one end of the ejector pin, and the other end of the ejector pin is fixedly installed relative to the knob. An adjusting screw is fitted on the outside of the ejector pin, and an elastic element is installed between the adjusting screw and the ejector pin. The elastic element is used to generate a preload force away from the adjusting screw on the ejector pin. The preload force is transmitted to the stop block so that its side is pressed against the side of the side plate, the middle plate, and the base below the electrode plate.

[0011] Furthermore, the ejector pin is provided with an annular limiting platform, the elastic element is located between the limiting platform and the bottom of the inner hole of the adjusting screw, and the elastic element is fitted on the ejector pin. The adjusting screw and the knob rotate synchronously and slide relative to each other, and the adjusting screw and the base plate slide relative to each other horizontally.

[0012] Furthermore, the pressing block assembly includes four sets of pressing mechanisms. Each pressing mechanism includes a pressing block and an inclined block slide. The inclined block slide is mounted on the base plate. The pressing block and the inclined block slide are fitted together and slidably installed relative to each other. A protrusion is provided on the side of the pressing block near the product to be welded. Under the action of the pressing block's own weight, the protrusion contacts and presses against the side of the bar module.

[0013] Furthermore, the top pressing assembly includes a chip pressing strip and an electrode pressing block. The chip pressing strip is used to contact and press tightly against the upper surface of the bar module. The electrode pressing block is fitted around the outer periphery of the chip pressing strip and is used to contact and press tightly against the upper surface of the electrode plate. The outer periphery of the electrode pressing block is indirectly squeezed and fixed by four pressing blocks.

[0014] Furthermore, a chip pressure plate in the shape of a flat plate is provided on the outer periphery of the chip pressure strip, and at least one stacking block is provided on the upper surface of the chip pressure plate and fitted on the outer periphery of the electrode pressure block. A limiting block is slidably installed on the upper surface of each pressure block, and the limiting block is used to press the chip pressure plate tightly from the side.

[0015] Furthermore, the upper surface of the base plate is provided with three pressure block grooves for limiting the pressure block and a sliding groove for the stop block to slide. The sliding groove and the three pressure block grooves are respectively located in the four quadrants. The side of the sliding groove near the center of the base plate is provided with a support groove for supporting the base of the component to be welded, and the side of the support groove is also provided with an installation groove for limiting the baffle. The baffle is used to cooperate with the stop block to press and position the side base plate and the middle base plate below the electrode plate of the product to be welded.

[0016] Furthermore, the pressure block is provided with a horizontal mounting hole, through which a tensioning part is installed. The tensioning part is used to ensure a tight contact fit between the pressure block and the inclined block base.

[0017] Furthermore, the pressure block includes a first pressure block, a second pressure block, a third pressure block, and a fourth pressure block, and the inclined block base includes a first inclined block base, a second inclined block base, a third inclined block base, and a fourth inclined block base installed in one-to-one correspondence with the pressure blocks. The first pressure block and the third pressure block are each provided with a single-headed protrusion on the side near the product to be welded, and the second pressure block and the fourth pressure block are each provided with a double-headed protrusion on the side near the product to be welded.

[0018] Furthermore, the bottom surface of the chip pressure bar is provided with several grooves, and the protrusions formed between the grooves contact and press tightly with several spacers of the bar module while avoiding the chips between the spacers.

[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0020] (1). This utility model achieves precise positioning of the product to be welded by setting up a base plate, a top pressing component and a side pressing component together. At the same time, with the help of the adjusting clamping component, it can be used to clamp and position the product to be welded with dimensional errors, which is convenient for adjusting the positioning position and picking up the product to be welded. The whole process is convenient and fast, and the positioning accuracy is high, thereby ensuring the welding quality.

[0021] (2). By limiting the specific structure of the adjusting clamping component, this utility model uses the elastic element to generate a pre-tightening force on the stop block, thereby continuously pre-tightening the product to be welded when the product is displaced due to heat during positioning or high-temperature welding, thus ensuring that the positioning of the product to be welded is always in a pre-tightened state, improving positioning accuracy and welding quality.

[0022] (3). This utility model sets up four sets of pressure block components. By using the inclined surface cooperation between the pressure block and the inclined block slide, the positioning of the product to be welded is achieved by the self-weight of the pressure block. Due to the self-weight of the pressure block, it has a relaxing effect, which effectively ensures the positioning accuracy. By setting up chip pressure strips, electrode pressure blocks and stacking blocks, the various parts on the top of the product to be welded are fully pressed and positioned. By setting up support grooves, mounting grooves and sliding grooves on the base plate, the bottom of the product to be welded is fully positioned. At the same time, it can avoid the chip part of the product to be welded, so as to avoid squeezing and damaging the chip during the positioning process and affecting the product quality. Attached Figure Description

[0023] Figure 1 is a three-dimensional structural diagram of the product to be welded according to this utility model;

[0024] Figure 2 is a three-dimensional structural diagram of this utility model;

[0025] Figure 3 is a schematic diagram of the front view structure of this utility model;

[0026] Figure 4 is a schematic diagram of the cross-sectional structure at point AA in Figure 3;

[0027] Figure 5 is a magnified schematic diagram of the local structure at point D in Figure 4;

[0028] Figure 6 is a top view of the structure of this utility model;

[0029] Figure 7 is a schematic diagram of the cross-sectional structure at EE in Figure 6;

[0030] Figure 8 is a schematic diagram of the cross-sectional structure at point BB in Figure 3;

[0031] Figure 9 is a schematic diagram of the cross-sectional structure at CC in Figure 3;

[0032] Figure 10 is a top view of the chip clamping strip structure;

[0033] Figure 11 is a three-dimensional structural diagram of the chip clamping strip;

[0034] Figure 12 is a three-dimensional structural diagram of the electrode pressing block;

[0035] Figure 13 is a three-dimensional structural diagram of the side pressure block;

[0036] Figure 14 is a three-dimensional structural diagram of the left and right pressure blocks;

[0037] Figure 15 is a schematic diagram of the three-dimensional structure of the base plate.

[0038] In the diagram: 100, Product to be welded; 101, Bar module; 102, Electrode plate; 103, Side base plate; 104, Middle base plate; 105, Base; 200, Base plate; 201, Baffle; 2011, Mounting groove; 202, Pressing block groove; 203, Support groove; 204, Slide groove; 300a, First inclined block base; 300b, Second inclined block base; 300c, Third inclined block base; 300d, Fourth inclined block base; 400a, First pressing block; 400b... Second pressure block; 400c, Third pressure block; 400d, Fourth pressure block; 401, Single-headed protrusion; 402, Double-headed protrusion; 500, Tensioning part; 600, Limiting block; 700, Adjusting and pressing assembly; 701, Knob part; 702, Adjusting screw; 703, Ejector pin; 7031, Limiting platform; 704, Elastic element; 705, Stop block; 800, Chip pressing strip; 801, Chip pressing plate; 8011, Insertion hole; 802, Stacking block; 803, Electrode pressing block. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0041] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0042] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0045] To address the limitations of existing technologies, this embodiment provides a technical solution. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0046] This utility model is mainly aimed at the need for precise positioning of the existing bar array packaging structure before welding, so as to ensure the welding quality of the product. Referring to Figure 1, the product 100 to be welded generally includes a base 105, a middle substrate 104 located above the middle of the base 105, side substrates 103 located on both sides above the base 105, a bar module 101 located above the middle substrate 104, and an electrode plate 102 located above the side substrates 103.

[0047] Referring to Figures 2-9, a positioning and assembly fixture for a bar array packaging structure includes: a base plate 200, used to support the product 100 to be welded and limit the three sides below its electrode plate 102, where the three sides below the electrode plate 102 refer to the three sides of the middle substrate 104, side substrate 103, and base 105 below the electrode plate 102; and a side pressing assembly, which includes a pressing block assembly located around the product 100 to be welded and an adjusting pressing assembly 700 located on one side thereon. The pressing block assembly is used to press and limit the sides of the bar module 101 of the product 100 to be welded, and the adjusting pressing assembly 700 is used to cooperate with the base plate 200 to press and limit the remaining sides below the electrode plate 102. It can be understood that the pressing block assembly positions the bar module 101, while the adjusting pressing assembly 700 cooperates with the base plate 200 to position the three sides below the electrode plate 102.

[0048] Referring to Figures 4, 5, and 8, the adjusting clamping assembly 700 includes a stop 705. The main function of the stop 705 is to slide on the base plate 200 and to clamp the side of the product 100 to be welded. The stop 705 is fixedly installed relative to one end of the ejector pin 703. This fixed installation means that one end of the ejector pin 703 is fixedly installed relative to the stop 705. The ejector pin 703 can be inserted into the stop 705, and the inserted end is then fixed by a nut or other locking block. The other end of the ejector pin 703 is connected to the knob 701. For fixed installation, the fixed installation here can be understood as an interference fit between one end of the ejector pin 703 and the knob part 701. An adjusting screw 702 is fitted on the outside of the ejector pin 703. An elastic element 704 is installed between the adjusting screw 702 and the ejector pin 703. Here, the elastic element 704 is preferably a spring. The elastic element 704 is used to generate a preload force on the ejector pin 703 away from the adjusting screw 702. The preload force is transmitted to the stop block 705 so that its side is pressed against the side of the side plate 103, the middle plate 104 and the base 105 below the electrode plate 102. An annular limiting platform 7031 is provided on the ejector pin 703. An elastic element 704 is located between the limiting platform 7031 and the bottom of the inner hole of the adjusting screw 702, and the elastic element 704 is fitted on the ejector pin 703. The adjusting screw 702 and the knob part 701 rotate synchronously and slide relative to each other. This synchronous rotation installation can be understood as the adjusting screw 702 and the knob part 701 being inserted into each other. However, the adjusting screw 702 slides relative to the knob part 701 along the axis. The adjusting screw 702 and the base plate 200 are relatively horizontally slidable. This relatively horizontal sliding setting can be understood as the inclined block slide being relatively fixedly installed with the base plate 200, and the bottom of the inclined block slide is provided with a through hole, through which the adjusting screw 702 slides relative to each other.

[0049] Referring to Figures 2-9, the pressure block assembly includes four sets of clamping mechanisms. Each set of clamping mechanisms includes a pressure block and a slanted block slide. The bottom of the slanted block slide is mounted on the base plate 200 by screws. The pressure block and the slanted block slide are fitted together and slidably mounted relative to each other. A protrusion is provided on the side of the pressure block near the product 100 to be welded. Under the weight of the pressure block, the protrusion contacts and clamps against the side of the bar module 101. The pressure block is provided with a horizontal mounting hole, preferably an elongated hole. A tensioning part 500 is installed through the mounting hole. The tensioning part 500 is preferably a bolt, which is used to ensure a tight contact between the pressure block and the slanted block base. The pressure blocks include a first pressure block 400a, a second pressure block 400b, a third pressure block 400c, and a fourth pressure block 400d. The inclined block bases include a first inclined block base 300a, a second inclined block base 300b, a third inclined block base 300c, and a fourth inclined block base 300d, which are installed one-to-one with the pressure blocks. The first pressure block 400a and the third pressure block 400c each have a single-headed protrusion 401 on the side closest to the product 100 to be welded. The second pressure block 400b and the fourth pressure block... Double-headed bumps 402 are provided on the side of 400d near the product 100 to be welded, as shown in Figures 13 and 14. The purpose of setting single-headed bumps 401 and double-headed bumps 402 here is mainly to address the gap reserved when the electrode pressure block 803 presses the bar module 101 of the product 100 to be welded against the electrode plate 102. Both single-headed bumps 401 and double-headed bumps 402 pass through the gap of the pressure foot of the electrode pressure block 803 and press the side of the bar module 101.

[0050] Referring to Figures 2-7, the top pressing assembly includes a vertically shaped chip pressing strip 800 and an electrode pressing block 803. The chip pressing strip 800 is used to contact and press against the upper surface of the bar module 101. Several grooves are provided on the bottom surface of the chip pressing strip 800. The protrusions formed between the grooves contact and press against several spacers of the bar module 101 while avoiding the chips between the spacers. The electrode pressing block 803 is fitted around the chip pressing strip 800 and is used to contact and press against the upper surface of the electrode plate 102. Specifically, referring to Figure 12, the electrode pressing block 803 adopts two L-shaped structures. A pressing foot is provided on the bottom surface of the L-shaped structure, corresponding to the position of the electrode plate 102. The outer periphery of the electrode pressing block 803 is indirectly pressed and fixed by four pressing blocks. Specifically, referring to Figures 10 and 11, a flat chip pressing plate 801 is provided around the chip pressing strip 800. Inserts are provided on the chip pressing plate 801. Hole 8011 is used for the electrode pressing block 803 to be inserted through. At least one stacking block 802 is provided above the chip pressing plate 801 and fitted around the outer periphery of the electrode pressing block 803. Here, the stacking block 802 is a weight block, mainly for improving the stability of the entire fixture. A limiting block 600 is horizontally slidably installed on the upper surface of each pressing block. The limiting block 600 is used to press the chip pressing plate 801 from the side. The limiting block 600 is installed with the pressing block by screws. A through elongated hole is provided on the limiting block 600 for the screw to pass through.

[0051] Referring to Figure 15, the upper surface of the base plate 200 is provided with three pressure block grooves 202 for limiting the pressure blocks and a sliding groove 204 for the stop block 705 to slide. A pressure block is also installed in the sliding groove 204. The sliding groove 204 and the three pressure block grooves 202 are located in the four quadrants respectively. On the side of the sliding groove 204 near the center of the base plate 200, a support groove 203 is provided for supporting the base 105 of the component to be welded. On the side of the support groove 203, a mounting groove 2011 is provided for limiting the baffle 201. The baffle 201 is used to cooperate with the stop block 705 to press and position the side base plate 103 and the middle base plate 104 below the electrode plate 102 of the product to be welded. Specifically, the right angles of the pressure block grooves 202, the support grooves 203 and the mounting groove 2011 are all provided with arc grooves. The purpose of these arc grooves is to improve the inclusiveness of the equipment and prevent the phenomenon of incompatibility during installation due to insufficient precision at the corners of the product.

[0052] When using the positioning assembly fixture disclosed in this application to position the product 100 to be welded, the product 100 to be welded is first positioned relative to itself and placed into the support groove 203 of the base plate 200. This mainly involves placing the entire base 105, as well as parts of the middle base plate 104 and the side base plate 103, into the support groove 203. A baffle 201 is installed in the mounting groove 2011 of the base plate 200 so that it contacts the middle base plate 104 and the side base plate 103 below the electrode plate 102. Then, the stop block 705 of the adjusting clamping assembly 700 is pressed against the base 105, the middle base plate 104, and the electrode plate 102. Then, the fourth pressure block 400d slides along the fourth inclined block slide so that its double-headed protrusion 402 engages with the bar module 101. Side contact: The first pressing block 400a is slid along the first inclined block slide so that its double-headed protrusion 402 contacts the opposite side of the bar module 101. Then, the second pressing block 400b and the third pressing block 400c are successively lowered so that their single-headed protrusions 401 contact and press against the other two sides of the bar module 101. Finally, the chip pressing strip 800 is fitted onto the stacking block 802 and inserted into the middle gap of the four pressing blocks so that the bottom of the chip pressing strip 800 presses against the upper surface of the bar module 101. By adjusting the limiting blocks 600 on the four pressing blocks, the four limiting blocks 600 press against the chip pressing plate 801 of the chip pressing strip 800. Then, the electrode pressing block 803 is inserted into the insertion hole 8011 of the chip pressing plate 801 to complete the positioning operation.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning and assembly fixture for a bar-stretcher array packaging structure, characterized in that, include: A base plate (200) is used to support the product to be welded (100) and limit the three sides below its electrode plate (102); a top pressing assembly is set above the product to be welded (100) to contact and press the bar strip module (101) on the top of the product to be welded (100); a side pressing assembly includes a pressing block assembly located around the product to be welded (100) and an adjusting pressing assembly (700) located on one side thereon. The pressing block assembly is used to press and limit the side of the bar strip module (101) of the product to be welded (100), and the adjusting pressing assembly (700) is used to cooperate with the base plate (200) to press and limit the remaining sides below the electrode plate (102).

2. The positioning and assembly fixture for a bar-stretcher array packaging structure according to claim 1, characterized in that, The adjusting clamping assembly (700) includes a stop (705) which is fixedly installed relative to one end of the ejector pin (703). The other end of the ejector pin (703) is fixedly installed relative to the knob (701). An adjusting screw (702) is fitted on the outside of the ejector pin (703). An elastic element (704) is installed between the adjusting screw (702) and the ejector pin (703). The elastic element (704) is used to generate a preload force away from the adjusting screw (702) on the ejector pin (703). The preload force is transmitted to the stop (705) so that its side is pressed against the side of the side plate (103), the middle plate (104) and the base (105) below the electrode plate (102).

3. The positioning and assembly fixture for a bar-strip array packaging structure according to claim 2, characterized in that, The ejector pin (703) is provided with an annular limiting platform (7031). The elastic element (704) is located between the limiting platform (7031) and the bottom of the inner hole of the adjusting screw (702). The elastic element (704) is fitted on the ejector pin (703). The adjusting screw (702) and the knob (701) rotate synchronously and slide relative to each other. The adjusting screw (702) and the base plate (200) are horizontally slidably arranged relative to each other.

4. The positioning and assembly fixture for a bar-strut array packaging structure according to claim 3, characterized in that, The pressure block assembly includes four sets of pressing mechanisms. Each pressing mechanism includes a pressure block and a slanted block slide. The slanted block slide is mounted on the base plate (200). The pressure block and the slanted block slide are fitted together and slidably installed relative to each other. A protrusion is provided on the side of the pressure block near the product to be welded (100). Under the action of the pressure block's own weight, the protrusion contacts and presses against the side of the bar strip module (101).

5. The positioning and assembly fixture for a bar-strut array packaging structure according to claim 4, characterized in that, The top pressing assembly includes a chip pressing strip (800) and an electrode pressing block (803). The chip pressing strip (800) is used to contact and press tightly against the upper surface of the bar module (101). The electrode pressing block (803) is fitted around the chip pressing strip (800) and is used to contact and press tightly against the upper surface of the electrode plate (102). The outer periphery of the electrode pressing block (803) is indirectly squeezed and fixed by four pressing blocks.

6. The positioning and assembly fixture for a bar-strut array packaging structure according to claim 5, characterized in that, The outer periphery of the chip pressing strip (800) is provided with a chip pressing plate (801) in the shape of a flat plate. At least one stacking block (802) is provided above the chip pressing plate (801) and is fitted on the outer periphery of the electrode pressing block (803). A limiting block (600) is slidably installed on the upper surface of each pressing block. The limiting block (600) is used to press the chip pressing plate (801) tightly from the side.

7. The positioning and assembly fixture for a bar-strut array packaging structure according to claim 6, characterized in that, The upper surface of the base plate (200) is provided with three pressure block grooves (202) for limiting the pressure block and a sliding groove (204) for the block (705) to slide. The sliding groove (204) and the three pressure block grooves (202) are respectively located in the four quadrants. The side of the sliding groove (204) near the center of the base plate (200) is provided with a support groove (203) for supporting the base (105) of the component to be welded. The side of the support groove (203) is also provided with an installation groove (2011) for limiting the baffle (201). The baffle (201) is used to cooperate with the block (705) to press and position the side base plate (103) and the middle base plate (104) below the electrode plate (102) of the product to be welded (100).

8. The positioning and assembly fixture for a bar-strut array packaging structure according to claim 4, characterized in that, The pressure block is provided with a horizontal mounting hole, through which a tensioning part (500) is installed. The tensioning part (500) is used to ensure a tight contact between the pressure block and the inclined block base.

9. A positioning and assembly fixture for a bar-strut array packaging structure according to claim 8, characterized in that, The pressure block includes a first pressure block (400a), a second pressure block (400b), a third pressure block (400c), and a fourth pressure block (400d). The inclined block base includes a first inclined block base (300a), a second inclined block base (300b), a third inclined block base (300c), and a fourth inclined block base (300d) installed in correspondence with the pressure blocks. The first pressure block (400a) and the third pressure block (400c) are each provided with a single-headed protrusion (401) on the side near the product to be welded (100). The second pressure block (400b) and the fourth pressure block (400d) are each provided with a double-headed protrusion (402) on the side near the product to be welded (100).

10. A positioning and assembly fixture for a bar-stretcher array packaging structure according to claim 6, characterized in that, The bottom surface of the chip pressure bar (800) is provided with several grooves, and the protrusions formed between the grooves contact and press against several spacers of the bar module (101) while avoiding the chips between the spacers.

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