A fixture clamp for die bonding

Abstract

This invention discloses a fixture for chip soldering, relating to the field of chip and circuit board soldering processing. The fixture includes a base, a pressing plate movably mounted on the top of the base via a guide rod, a rack column at the bottom of the pressing plate, and transmission mechanisms on both sides of the base, driven by the rack column. A fixture table is movably mounted on the inner side of the base via a limiting guide rail. Both sides of the fixture table have transmission racks, driven by the transmission mechanism. When the rack column is adjusted in height, the fixture table slides in and out of the base via the transmission mechanism. This invention, by providing a fixture table that can be actively separated and slid out, not only facilitates the loading of circuit boards but also makes the circuit boards easier to observe and inspect. When the pressing plate is raised, the transmission mechanism drives the fixture table to actively slide out of the base, making it easier for workers to observe the chip soldering effect.

Description

Technical Field

[0001] This invention relates to the field of chip and circuit board welding processing, specifically to a tooling fixture for chip welding. Background Technology

[0002] Chip soldering is a process that reliably connects chips to circuit boards. Taking chip reflow soldering as an example, the main process includes: printing solder paste onto the surface of the circuit board through a stencil, then using a pick-and-place machine to precisely place SMD components (resistors, capacitors, chips, etc.) into the designated area of ​​the circuit board, and then the circuit board enters the soldering furnace, where the high temperature melts the solder paste, enabling the chip and the circuit board to be stably connected.

[0003] In the reflow soldering process of chips, reflow soldering fixtures are used. These are special tooling fixtures used to hold, press, and protect the circuit board. Reflow soldering fixtures are typically used to fix the circuit board, prevent warping and deformation, protect components, and ensure soldering accuracy.

[0004] In practical use, reflow soldering fixtures are specially designed according to different circuit boards. Especially for circuit boards that are prone to warping and deformation, a full or partial pressing method is used to fix the circuit board. That is, the main body of the soldering fixture consists of two layers, consisting of a tray and an upper pressure cover (upper pressure block). When this type of modular fixture is used, the upper pressure cover (upper pressure block) and the tray are usually assembled using positioning holes and positioning pins, or a drive wrench is designed to separate and close the upper pressure cover and the tray. However, when the circuit board is subjected to high temperature in the soldering furnace, or defective products such as chip misalignment may occur, the circuit board coming out of the furnace needs to be inspected manually or by industrial camera. However, when the circuit board is observed between the upper pressure cover (upper pressure block) and the tray, the field of vision is limited, making it difficult to see the effect of chip soldering, thus affecting the first pass rate of the chip soldering process. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a tooling fixture for chip soldering to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tooling fixture for chip welding, the tooling fixture comprising a base, a pressing plate movably mounted on the top of the base via a guide rod, two sets of rack columns at the bottom of the pressing plate, a transmission mechanism on both sides of the base, the transmission mechanism being drivenly connected to the rack columns, a fixture platform movably mounted on the inner side of the base via a limiting guide rail, a transmission rack on both sides of the fixture platform, the transmission rack being drivenly connected to the transmission mechanism, the fixture platform sliding in and out of the base via the transmission mechanism when the rack columns are adjusted in height, the fixture platform being slid in and out of the base, the top of the fixture platform having a positioning groove and a pressing groove, the positioning groove matching the circuit board, the pressing groove matching the pressing plate, a clamping assembly and a positioning assembly at the bottom of the fixture platform, a first guide block and a second guide block on the inner side of the base, the clamping assembly including a first mounting bracket fixedly mounted on the bottom of the base. The first mounting bracket has a clamping seat on its top and a linkage plate acting on the first guide block on its side. The bottom of the clamping seat is movably mounted to the first mounting bracket via a first guide post, and a first spring is sleeved on the outside of the first guide post. Inside the clamping seat, a toggle rod is movably mounted via a first fixed rod, and a second spring is provided on both sides of the toggle rod on the outside of the first fixed rod. A clamping block is provided on the side of the toggle rod, and the clamping block is movably mounted to the toggle rod via a second fixed rod, and a third spring is sleeved on the outside of the second fixed rod. A third guide block acting on the toggle rod is provided inside the fixture table. When the fixture table slides out from inside the base, the clamping assembly automatically rises under the guidance of the first guide block, so that the clamping seat of the clamping assembly lifts the circuit board, and the toggle rod inside the clamping seat pops out of the clamping block under the guidance of the third guide block to clamp the circuit board.

[0007] By adopting the above technical solution and setting up a fixture table that can be actively separated and slid out, not only is it more convenient to load circuit boards, but it also makes it easier to observe and inspect the circuit boards. The tooling fixture is mainly composed of a base, a fixture table, and a pressing plate. The base and fixture table are slidably installed. When the pressing plate is raised, the fixture table is driven by a transmission mechanism to actively slide out from the base. At this time, the fixture table is exposed from the inside of the base, which makes it more convenient for the staff to load and clamp the circuit boards. At the same time, the circuit boards that slide out with the fixture table are no longer obstructed by the pressing plate, making it easier for the staff to observe the chip soldering effect.

[0008] The present invention is further configured such that the transmission mechanism includes a housing, and a first transmission gear and a second transmission gear are rotatably connected inside the housing. The first transmission gear is matched with a transmission rack, and the second transmission gear is matched with a rack column. The first transmission gear and the second transmission gear are connected by a pulley assembly and a gear set for transmission.

[0009] Preferably, by setting a transmission mechanism, the pressing plate is first raised a certain distance, the empty section outside the rack column is not engaged with the second transmission gear, and then after the pressing plate is raised and disengaged from the pressing groove, the rack column engages with the second transmission gear, thereby causing the first transmission gear to rotate. The first transmission gear and the transmission rack engage, realizing the fixture table sliding in and out of the base.

[0010] The invention is further configured such that the top of both the fixture platform and the pressing plate are provided with clearance grooves to allow the chip to be exposed for high-temperature soldering.

[0011] Preferably, by creating clearance slots to allow the chip to pass through, the chip can be soldered under the action of high temperature hot air, while the pressing plate can also fix other parts of the circuit board to prevent warping and deformation.

[0012] The present invention is further configured such that an arc-shaped guide surface is provided at the top edge of the clamping block.

[0013] Preferably, by setting an arc-shaped guide surface, when the worker installs the circuit board, the circuit board can be used to squeeze the arc-shaped guide to retract the clamping block, thereby smoothly locking the circuit board between the two sets of clamping blocks.

[0014] The present invention is further configured such that the positioning component includes two sets of second mounting brackets fixedly installed at the bottom of the fixture table, each set of second mounting brackets having a second guide post at its top, and each set of second guide posts having a fourth spring sleeved on its exterior, and a positioning seat movably installed on the exterior of each set of second guide posts.

[0015] Preferably, by setting a positioning component, the accuracy of circuit board engagement can be improved. Since the two sets of clamping components can only limit the horizontal movement of the circuit board when it is placed, setting a positioning component can limit the vertical movement of the circuit board, making the circuit board engagement more accurate and convenient.

[0016] The invention is further configured such that when the fixture table slides into the interior of the base, the height of the clamping seat of the clamping assembly and the positioning seat of the positioning assembly are lower than the height of the positioning groove.

[0017] Preferably, when the fixture slides into the interior of the base, the height of the clamping seat of the clamping assembly and the positioning seat of the positioning assembly are lower than the height of the positioning groove, so that the pressing plate can smoothly descend to press the circuit board.

[0018] The present invention is further configured such that the distance between the two sets of clamping seats is greater than the width of the circuit board.

[0019] Preferably, by leaving a certain gap by making the distance between the clamping seats greater than the width of the circuit board, the clamping blocks can pop out to clamp the circuit board.

[0020] The present invention is further configured such that a rotating handle is rotatably connected to the side of the base, and a threaded rod is threadedly connected to the inside of the rotating handle, and the threaded rod is fixedly connected to the pressing plate.

[0021] Preferably, by setting a rotating handle and a threaded rod, the lifting and lowering of the pressing plate can be achieved by rotating the rotating handle, and the adjustment range of the rotating handle is regulated by a limit structure.

[0022] In summary, the present invention has the following main beneficial effects: 1. This invention, by setting a jig table that can be actively separated and slid out, not only makes the loading of circuit boards more convenient, but also makes the circuit boards easier to observe and inspect. The tooling fixture is mainly composed of a base, a jig table, and a pressing plate. The base and jig table are slidably installed. When the pressing plate is raised, the jig table is driven by a transmission mechanism to actively slide out from the base. At this time, the jig table is exposed from the inside of the base, which makes it more convenient for the staff to load and clamp the circuit boards. At the same time, the circuit boards that slide out with the jig table are no longer obstructed by the pressing plate, making it easier for the staff to observe the chip soldering effect.

[0023] 2. By designing clamping and positioning components in the tooling fixture, this invention allows for more precise and easier placement of circuit boards. When the fixture slides out from the base, the clamping and positioning components at the bottom of the fixture automatically rise. Compared to the traditional circuit board locking method, which involves aligning and locking the circuit board into the groove, in this application, the operator can place the circuit board on the actively raised support structure, making circuit board locking and retrieval more convenient and faster. Furthermore, after the clamping components rise to effectively support the circuit board, the clamping blocks will automatically pop out to clamp the circuit board horizontally, making the circuit board more stable. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the tooling fixture closure of the present invention; Figure 2 This is a schematic diagram showing the distribution of the base and the rotating handle of the present invention; Figure 3 This is a schematic diagram showing the distribution of the base and transmission mechanism of the present invention; Figure 4 This is a schematic diagram of the external structure of the transmission mechanism of the present invention; Figure 5 This is a schematic diagram of the internal structure of the transmission mechanism of the present invention; Figure 6 This is a schematic diagram showing the distribution of the positioning groove and pressing groove on the top of the fixture table of the present invention. Figure 7 This is a schematic diagram showing the distribution of the fixture table, clamping assembly, and positioning assembly of the present invention; Figure 8 This is a schematic diagram of the clamping assembly structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the clamping assembly of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of point A in the image; Figure 11 This is a schematic diagram of the positioning component structure of the present invention; Figure 12 This is a schematic diagram showing the circuit board distribution when the tooling fixture of the present invention is opened; Figure 13 This is a schematic diagram of the tooling fixture of the present invention being opened; Figure 14 This is a schematic diagram of the bottom structure of the tooling fixture of the present invention when it is opened; Figure 15 For the present invention Figure 12 Enlarged view of point B in the image; Figure 16 This is a partially enlarged view of the present invention; Figure 17 For the present invention Figure 14 Enlarged view of point C in the image.

[0025] Explanation of reference numerals in the attached figures: 1. Base; 2. Transmission mechanism; 201. Housing; 202. First transmission gear; 203. Second transmission gear; 204. Pulley assembly; 205. Gear set; 3. Limiting guide rail; 4. Fixture table; 5. Transmission rack; 6. Positioning groove; 7. Pressing groove; 8. Clamping assembly; 801. First mounting bracket; 802. Clamping seat; 803. Linkage plate; 804. First guide post; 805. First spring; 806. First fixing rod; 807. 808. Actuating lever; 809. Second spring; 810. Clamping block; 811. Second fixing rod; 812. Third spring; 813. Arc-shaped guide surface; 9. Positioning assembly; 901. Second mounting bracket; 902. Second guide post; 903. Fourth spring; 904. Positioning seat; 10. Guide rod; 11. Pressing plate; 12. Rack post; 13. Threaded rod; 14. Rotating handle; 15. First guide block; 16. Second guide block; 17. Third guide block. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of the present invention will now be described.

[0028] Please see Figures 1-17A tooling fixture for chip soldering includes a base 1. A pressing plate 11 is movably mounted on the top of the base 1 via a guide rod 10. The pressing plate 11 is used to press the non-soldering area of ​​the circuit board to prevent it from deforming at high temperatures. Two sets of rack columns 12 are provided at the bottom of the pressing plate 11. The rack columns 12 have empty sections and toothed sections on their outer sides. Transmission mechanisms 2 are provided on both sides of the base 1, and the transmission mechanisms 2 are driven to drive the rack columns 12. A fixture table 4 is movably mounted on the inner side of the base 1 via a limiting guide rail 3. The fixture table 4 is used to place and clamp the circuit board. Transmission racks 5 are provided on both sides of the fixture table 4, and the transmission racks 5 are driven to drive the transmission mechanisms 2. When the rack column 12 is adjusted in height, it is driven by the transmission mechanism 2 to make the fixture table 4 slide in and out of the base 1. The top of the fixture table 4 is provided with a positioning groove 6 and a pressing groove 7. The positioning groove 6 matches the circuit board. The positioning groove 6 is also provided with a positioning pin that matches the circuit board. The pressing groove 7 matches the pressing plate 11. The bottom of the fixture table 4 is provided with a clamping component 8 and a positioning component 9. The inner side of the base 1 is provided with a first guide block 15 and a second guide block 16. When the fixture table 4 moves the clamping component 8 and the positioning component 9, under the action of the first guide block 15 and the second guide block 16, the clamping component 8 and the positioning component 9 can automatically rise and support the circuit board. The clamping assembly 8 includes a first mounting bracket 801 fixedly installed at the bottom of the base 1. A clamping seat 802 is provided on the top of the first mounting bracket 801. A linkage plate 803 acting on the first guide block 15 is provided on the side of the clamping seat 802. The bottom of the clamping seat 802 is movably mounted to the first mounting bracket 801 via a first guide post 804. A first spring 805 is sleeved on the outside of the first guide post 804. A toggle lever 807 is movably mounted inside the clamping seat 802 via a first fixing rod 806. Second springs 808 are provided on both sides of the toggle lever 807 on the outside of the first fixing rod 806. A clamping block 809 is provided on the side of the moving rod 807. The clamping block 809 is movably installed by a second fixed rod 810 and a toggle rod 807. A third spring 811 is sleeved on the outside of the second fixed rod 810. A third guide block 17 acting on the toggle rod 807 is provided on the inner side of the fixture table 4. When the fixture table 4 slides out from the inside of the base 1, the clamping assembly 8 automatically rises under the guidance of the first guide block 15, so that the clamping seat 802 of the clamping assembly 8 lifts the circuit board. The toggle rod 807 in the clamping seat 802 pops out of the clamping block 809 under the guidance of the third guide block 17 to clamp the circuit board.

[0029] Please refer to the above embodiments for further details. Figure 4 and Figure 5The transmission mechanism 2 includes a housing 201. Inside the housing 201, a first transmission gear 202 and a second transmission gear 203 are rotatably connected. The first transmission gear 202 is matched with the transmission rack 5, and the second transmission gear 203 is matched with the rack column 12. The first transmission gear 202 and the second transmission gear 203 are connected by a pulley assembly 204 and a gear set 205. By setting the transmission mechanism 2, the pressing plate 11 is raised a certain distance first, and the empty section outside the rack column 12 does not mesh with the second transmission gear 203. Then, after the pressing plate 11 is raised and disengaged from the pressing groove 7, the rack column 12 meshes with the second transmission gear 203, thereby causing the first transmission gear 202 to rotate. The first transmission gear 202 meshes with the transmission rack 5, realizing the sliding of the fixture table 4 into and out of the base 1.

[0030] Please refer to the above embodiments for further details. Figure 1 , Figure 2 and Figure 6 The top of both the fixture table 4 and the pressing plate 11 is provided with clearance grooves to avoid the chip, allowing the chip to be exposed for high-temperature soldering. By providing clearance grooves to avoid the chip, the chip can be soldered under the action of high-temperature hot air. The pressing plate 11 can also fix other parts of the circuit board to prevent warping and deformation.

[0031] Please refer to the above embodiments for further details. Figure 10 An arc-shaped guide surface 812 is provided at the top edge of the clamping block 809. By providing the arc-shaped guide surface 812, when the operator installs the circuit board, the circuit board can be used to squeeze the arc-shaped guide surface 812 to retract the clamping block 809, thereby smoothly clamping the circuit board between the two sets of clamping blocks 809.

[0032] Please refer to the above embodiments for further details. Figure 11 The positioning component 9 includes two sets of second mounting brackets 901 fixedly installed at the bottom of the fixture table 4. The top of each set of second mounting brackets 901 is provided with a second guide post 902, and a fourth spring 903 is sleeved on the outside of each set of second guide posts 902. A positioning seat 904 is movably installed on the outside of each set of second guide posts 902. By setting the positioning component 9, the accuracy of circuit board engagement can be improved. Since the two sets of clamping components 8 can only limit the horizontal movement of the circuit board when it is placed, the positioning component 9 can limit the vertical movement of the circuit board, making the engagement of the circuit board more accurate and convenient.

[0033] Please refer to the above embodiments for further details. Figure 1 , Figure 2 and Figure 13When the fixture table 4 slides into the interior of the base 1, the height of the clamping seat 802 of the clamping assembly 8 and the positioning seat 904 of the positioning assembly 9 is lower than the height of the positioning groove 6. When the fixture table 4 slides into the interior of the base 1, the height of the clamping seat 802 of the clamping assembly 8 and the positioning seat 904 of the positioning assembly 9 is lower than the height of the positioning groove 6, so that the pressing plate 11 can smoothly descend to press the circuit board.

[0034] Please refer to the above embodiments for further details. Figure 15 The distance between the two sets of clamping seats 802 is greater than the width of the circuit board. By making the distance between the clamping seats 802 greater than the width of the circuit board, a certain gap is left so that the clamping block 809 can pop out to clamp the circuit board.

[0035] Please refer to the above embodiments for further details. Figure 3 and Figure 12 A rotating handle 14 is rotatably connected to the side of the base 1. A threaded rod 13 is threadedly connected inside the rotating handle 14. The threaded rod 13 is fixedly connected to the pressing plate 11. By setting the rotating handle 14 and the threaded rod 13, rotating the rotating handle 14 can realize the lifting and lowering of the pressing plate 11. The adjustment range of the rotating handle 14 is set with a limit structure for standardization.

[0036] In practical operation, taking the circuit board and chip welding machine as an example, and the operator opening the tooling fixture to observe the chip welding effect, the operator rotates the rotating handle 14, which, under the action of the lead screw principle, causes the threaded rod 13 to rise. The threaded rod 13 drives the pressure plate 11 connected to it to rise as a whole. Then, the guide rod 10 slides inside the base 1, and the pressure plate 11 drives the rack column 12 to rise. After the pressure plate 11 rises a certain distance, the rack column 12 meshes with the second transmission gear 203 of the transmission mechanism 2, and drives the first transmission gear 202 to rotate through the gear set 205 and the pulley assembly 204. The first transmission gear 202 meshes with the transmission rack 5, causing the fixture table 4 to slide out of the inside of the base 1 as a whole.

[0037] When the fixture table 4 slides out to the end point, the pressing plate 11 stops rising, and the linkage plate 803 of the clamping assembly 8 is raised by the squeezing and guiding action of the first guide block 15, which in turn drives the clamping seat 802 and the first guide post 804 connected to it to rise. The first guide post 804 compresses the first spring 805, and the clamping seat 802 first rises a distance to fit the bottom of the circuit board, and then continues to rise to lift the circuit board. Then, as the clamping seat 802 continues to rise, the actuating rod 807 inside the clamping seat 802 is squeezed and guided by the third guide block 17 to retract towards the clamping seat 802. Then, under the reset action of the third spring 811, the actuating rod 807 pushes the clamping block 809 out of the clamping seat 802. That is, after the two sets of clamping assemblies 8 rise to lift the circuit board a distance, the two sets of clamping blocks 809 will emerge from the horizontal direction to clamp the circuit board.

[0038] At the same time, as the fixture platform 4 slides out to the end point, the positioning seat 904 of the positioning component 9 is raised by the squeezing and guiding action of the second guide block 16. The positioning seat 904 slides along the second guide post 902 to compress the fourth spring 903, thus supporting the circuit board.

[0039] When the jig table 4 has fully slid out to the end of its stroke, the pressing plate 11 is in the raised state, the jig table 4 is in the slid-out state, and the circuit board is also in the raised state inside the jig table 4 under the support of the clamping assembly 8 and the positioning assembly 9. At this time, the operator's view of the circuit board will not be obstructed by the pressing plate 11, and it will be more convenient to pick up and put back the circuit board. If the circuit board is put back at this time, the positioning seat 904 of the positioning assembly 9 is in the raised state. Using it as a positioning point, the circuit board can be more easily clamped between the clamping seats 802 of the two sets of clamping assemblies 8. When clamping, since the clamping block 809 of the clamping assembly 8 is in the protruding state, the circuit board only needs to press the arc-shaped guide surface 812 of the clamping block 809 to realize the retraction of the clamping block 809, and finally the circuit board is fully embedded in the two clamping assemblies 802. Between the clamping seat 802 and the positioning seat 904, the circuit board is more stably held by the two clamping blocks 809. Similarly, when the tooling fixture begins to close, the fixture table 4 retracts again, and the two clamping components 8 and the positioning components 9 automatically descend, so that the circuit board can be smoothly fitted into the positioning groove 6. The clamping components 8 and the positioning components 9 descend to a height lower than the positioning groove 6 so that the pressing plate 11 can be smoothly fitted into the pressing groove 7 to press the circuit board. After the clamping component 8 descends, its clamping block 809 will also retract into the clamping seat 802, which will not affect the next operation. If the clamping block 809 does not retract into the clamping seat 802, it will not be able to clamp the circuit board when it is raised again next time, and it will be directly lifted to the side of the arc guide surface 812.

[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A tooling fixture for chip soldering, characterized in that: The tooling fixture includes a base (1), a pressing plate (11) is movably mounted on the top of the base (1) via a guide rod (10), two sets of rack columns (12) are provided at the bottom of the pressing plate (11), a transmission mechanism (2) is provided on both sides of the base (1), the transmission mechanism (2) and the rack columns (12) are drivenly connected, a fixture table (4) is movably mounted on the inner side of the base (1) via a limit guide rail (3), a transmission rack (5) is provided on both sides of the fixture table (4), the transmission rack (5) and the transmission mechanism (2) are drivenly connected, when the height of the rack column (12) is adjusted, it is driven by the transmission mechanism (2) to make The fixture platform (4) slides in and out of the base (1). The top of the fixture platform (4) is provided with a positioning groove (6) and a pressing groove (7). The positioning groove (6) matches the circuit board, and the pressing groove (7) matches the pressing plate (11). The bottom of the fixture platform (4) is provided with a clamping assembly (8) and a positioning assembly (9). The inner side of the base (1) is provided with a first guide block (15) and a second guide block (16). The clamping assembly (8) includes a first mounting bracket (801) fixedly installed at the bottom of the base (1). The top of the first mounting bracket (801) is provided with a clamping seat (802), and the side of the clamping seat (802) is provided with... The linkage plate (803) acts on the first guide block (15). The bottom of the clamping seat (802) is movably mounted by a first guide post (804) and a first mounting bracket (801). A first spring (805) is sleeved on the outside of the first guide post (804). A toggle rod (807) is movably mounted inside the clamping seat (802) by a first fixing rod (806). A second spring (808) is provided on both sides of the toggle rod (807) on the outside of the first fixing rod (806). A clamping block (809) is provided on the side of the toggle rod (807). The clamping block (809) is provided by a second fixing rod (808). The fixed rod (810) and the actuating rod (807) are movably installed, and a third spring (811) is sleeved on the outside of the second fixed rod (810). A third guide block (17) acting on the actuating rod (807) is provided on the inner side of the fixture table (4). When the fixture table (4) slides out from the inside of the base (1), the clamping assembly (8) automatically rises under the guidance of the first guide block (15), so that the clamping seat (802) of the clamping assembly (8) lifts the circuit board, and the actuating rod (807) in the clamping seat (802) pops out the clamping block (809) under the guidance of the third guide block (17) to clamp the circuit board.

2. The tooling fixture for chip soldering according to claim 1, characterized in that: The transmission mechanism (2) includes a housing (201), and a first transmission gear (202) and a second transmission gear (203) are rotatably connected inside the housing (201). The first transmission gear (202) is matched with a transmission rack (5), and the second transmission gear (203) is matched with a rack column (12). The first transmission gear (202) and the second transmission gear (203) are connected by a pulley assembly (204) and a gear set (205).

3. The tooling fixture for chip soldering according to claim 1, characterized in that: The top of both the fixture platform (4) and the pressing plate (11) is provided with clearance grooves to allow the chip to be exposed for high-temperature soldering.

4. The tooling fixture for chip soldering according to claim 1, characterized in that: The clamping block (809) has an arc-shaped guide surface (812) at its top edge.

5. A tooling fixture for chip soldering according to claim 1, characterized in that: The positioning component (9) includes two sets of second mounting brackets (901) fixedly installed at the bottom of the fixture table (4). The top of each set of second mounting brackets (901) is provided with a second guide post (902), and the outside of each set of second guide posts (902) is fitted with a fourth spring (903). The outside of each set of second guide posts (902) is movably installed with a positioning seat (904).

6. A tooling fixture for chip soldering according to claim 5, characterized in that: When the fixture table (4) slides into the interior of the base (1), the height of the clamping seat (802) of the clamping assembly (8) and the positioning seat (904) of the positioning assembly (9) is lower than the height of the positioning groove (6).

7. A tooling fixture for chip soldering according to claim 1, characterized in that: The distance between the two sets of clamping seats (802) is greater than the width of the circuit board.

8. A tooling fixture for chip soldering according to claim 1, characterized in that: The base (1) is rotatably connected to a rotating handle (14) on its side. The rotating handle (14) is internally threaded with a threaded rod (13), which is fixedly connected to the pressing plate (11).

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