Clamping and positioning mechanism based on DBC plate machining

Abstract

The invention discloses a clamping and positioning mechanism based on DBC board processing, and relates to the technical field of semiconductor positioning. According to the clamping and positioning mechanism based on DBC plate machining, through cooperation of the outer sleeve and the inner sleeves, when a DBC plate is positioned, as the DBC plate is placed above the multiple inner sleeves, supporting can be achieved through the multiple conical supporting pieces, and the inner sleeves are compressed into the outer sleeve through cooperation of gravity; and then, when the placed DBC board is positioned in a negative pressure mode, the extension length of the inner sleeve can be locked through cooperation of the transmission assembly, so that the positioning effect and the supporting effect on the bottom of the DBC board are guaranteed, and the equipment can be suitable for supporting and positioning the DBC boards of different sizes and shapes; and the subsequent processing effect of the DBC board is ensured, and meanwhile, the application range of the equipment is widened.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor positioning, in particular to a clamping positioning mechanism for DBC board processing. Background Art

[0002] The modern semiconductor manufacturing industry has very high requirements for the production of automated equipment. Most companies require that the equipment has the characteristics of small size, fast production speed, high pass rate and high degree of automation. Referring to the Chinese patent, the announcement number is "CN220189601U" "A positioning device for DBC assembly", the patent points out that the existing positioning mechanism is prone to cause deviation of the DBC board; but the above-mentioned equipment still has the problem of lack of support during the positioning process, which makes the DBC prone to instability, offset, deformation and other phenomena during processing, especially for the processing of irregular-shaped DBC sheets, such as when inserting pins, welding and splicing the DBC sheets with chips. In this regard, we propose a clamping positioning mechanism based on DBC board processing to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a clamping and positioning mechanism for DBC board processing, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A clamping and positioning mechanism for DBC board processing, comprising a body, a plurality of outer sleeves are fixedly installed inside the body, an inner sleeve is slidably connected inside the outer sleeve, a plurality of conical support members are fixedly installed at the end of the inner sleeve for supporting the placed DBC board, and a fixing sheet is connected between the plurality of conical support members; A positioning suction cup is fixedly installed at the end of the inner sleeve, and a first negative pressure plate which is interconnected with the inner sleeve is fixedly installed at the bottom of the body, and the positioning suction cup is used to position the placed DBC board; A plurality of ventilation slots are provided inside the outer sleeve, and a locking frame is fixed inside each of the ventilation slots. A locking inner plate is slidably connected inside the locking frame. A transmission assembly is provided between the locking inner plate and the inside of the ventilation slots, which is used to lock the outer sleeve and the inner sleeve when positioning the placed DBC board, thereby providing support for the bottom of the DBC board.

[0005] Preferably, the transmission assembly includes a limit rod, which is rotatably installed inside the ventilation slot, and the outer side of the limit rod is rotatably sleeved with a positioning sleeve, and the outer sides of the positioning sleeve are respectively fixed with a connecting column and a driving arm, a pull rope is connected between the driving arm and the locking inner plate, which is used to drive the locking inner plate to operate, a driving plate is fixedly installed on the outer side of the connecting column, a second negative pressure plate is fixedly installed on the bottom of the body, and a locking connecting air nozzle is fixedly installed on the end of the ventilation slot, and the locking connecting air nozzle is connected to the second negative pressure plate.

[0006] Preferably, a rotating shaft is rotatably installed inside the ventilation slot, and the pull rope passes around the rotating shaft.

[0007] Preferably, a spring is installed between the end of the locking inner plate and the interior of the locking frame to drive the locking inner plate to reset.

[0008] Preferably, a negative pressure channel is opened inside the inner sleeve, an elastic sealing nozzle is fixedly installed at the end of the negative pressure channel, a plurality of through holes are opened at the bottom of the positioning suction cup, and a plurality of negative pressure suction holes are opened at the top, and the plurality of through holes are interconnected with the negative pressure channel.

[0009] Preferably, a connecting pipe is fixedly mounted on the end of the outer sleeve, and the end of the connecting pipe is communicated with the first negative pressure disk.

[0010] Preferably, a negative pressure device is fixedly installed at the bottom of the machine body, and there are two negative pressure devices which are respectively connected to the first negative pressure plate and the second negative pressure plate.

[0011] Preferably, an arc-shaped wind shield is fixedly installed inside the ventilation slot, and the connecting column passes through the arc-shaped wind shield and is slidably connected thereto.

[0012] Preferably, a support plate is fixedly installed inside the outer sleeve, and a plurality of support springs are installed between the inner sleeve and the support plate.

[0013] Preferably, an assembly component is provided on the outside of the body for installing the body and adjusting the angle of the body, the assembly component includes an assembly frame, both ends of the body are fixed with rotating shafts, the rotating shafts are rotatably connected to the assembly frame, a sliding rod is fixed on the side of the body away from the rotating shaft, limit frames are fixed on both sides of the assembly frame, the sliding rod is slidably installed inside the limit frame, a fixing plate is fixedly installed inside the assembly frame and an adjusting cylinder is fixed via the fixing plate, and the piston end of the adjusting cylinder is rotatably connected to the bottom of the body.

[0014] The present invention provides a clamping and positioning mechanism for DBC plate processing. Compared with the prior art, it has the following beneficial effects: (1) The clamping and positioning mechanism for DBC board processing, through the cooperation of the outer sleeve and the inner sleeve, can achieve support through multiple conical support members as the DBC board is placed on top of multiple inner sleeves, and through the cooperation of gravity, the inner sleeve is compressed into the inner sleeve. Then, when the placed DBC board is positioned by negative pressure, the extended length of the inner sleeve can be locked through the cooperation of the transmission component, thereby ensuring the positioning effect and the support effect on the bottom of the DBC board, so that the equipment can be used to complete the support and positioning operations of DBC boards of different sizes and shapes, ensuring the subsequent processing effect of the DBC board while improving the application range of the equipment.

[0015] (2) The clamping and positioning mechanism for DBC plate processing, through the setting of the assembly frame, after the assembly frame is installed, when the DBC plate is placed on the machine body and locked, as the adjustment cylinder runs, it can drive the machine body to rotate along the rotation axis, so as to adjust the angle of the locked DBC plate, further improving the working efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure; Figure 3 For the present invention Figure 2 Front view; Figure 4 It is a schematic diagram of the cross-sectional structure of the outer sleeve and the inner sleeve of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 7 For the present invention Figure 4 Front view; Figure 8 It is a schematic diagram of the transmission assembly structure of the present invention.

[0017] In the figure: 1, machine body; 101, rotating shaft; 2, assembly frame; 3, limit frame; 4, slide rod; 5, fixing plate; 6, adjusting cylinder; 7, outer sleeve; 701, connecting pipe; 702, ventilation slot; 703, locking and connecting air nozzle; 8, inner sleeve; 801, negative pressure channel; 802, elastic sealing nozzle; 9, first negative pressure plate; 10, second negative pressure plate; 11, negative pressure device; 12, support plate ; 1201, support spring; 13, positioning suction cup; 1301, through hole; 1302, negative pressure suction hole; 14, conical support member; 1401, fixing plate; 15, locking frame; 1501, locking inner plate; 1502, pull rope; 16, limiting rod; 17, positioning sleeve; 1701, connecting column; 1702, driving plate; 1703, driving arm; 18, arc-shaped wind shield frame; 19, rotating shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 The present invention provides two technical solutions, which specifically include the following embodiments: Embodiment 1: refer to Figure 1-Figure 8 A clamping and positioning mechanism for processing a DBC board includes a body 1, a plurality of outer sleeves 7 are fixedly installed inside the body 1, an inner sleeve 8 is slidably connected inside the outer sleeve 7, a plurality of conical support members 14 are fixedly installed at the end of the inner sleeve 8 for supporting the placed DBC board, and a fixing sheet 1401 is connected between the plurality of conical support members 14. When processing the DBC board, the DBC board is first placed on the plurality of inner sleeves 8, at which time the bottom of the DBC board can contact with the plurality of conical support members 14 to achieve support, thereby reducing the contact area with the bottom of the DBC board and avoiding the sliding of the placed DBC board, thereby ensuring the subsequent processing effect; Specifically, after the DBC board is placed on the inner sleeve 8, due to gravity, the inner sleeve 8 can be forced to slide into the outer sleeve 7, so that the conical support members 14 at the ends of the multiple inner sleeves 8 can all contact with the bottom of the DBC board to complete the support; Specifically, the above support method is applicable to DBC boards of different shapes, such as a DBC board with an arc-shaped bottom. Through the cooperation of the conical support members 14 at the ends of the multiple inner sleeves 8, the support operation of the bottom of the DBC board can be completed; Furthermore, a positioning suction cup 13 is fixedly installed at the end of the inner sleeve 8, and a first negative pressure cup 9 which is interconnected with the inner sleeve 8 is fixedly installed at the bottom of the body 1. The positioning suction cup 13 is used to position the placed DBC board. When the DBC board is placed, the first negative pressure cup 9 is operated to generate negative pressure inside the plurality of inner sleeves 8, and the placed DBC board is positioned by the cooperation of the positioning suction cup 13. Specifically, a plurality of ventilation slots 702 are provided inside the outer sleeve 7, and a locking frame 15 is fixed inside each of the ventilation slots 702. A locking inner plate 1501 is slidably connected inside the locking frame 15. A transmission assembly is provided between the locking inner plate 1501 and the ventilation slots 702, which is used to lock the outer sleeve 7 and the inner sleeve 8 when positioning the placed DBC board, so as to support the bottom of the DBC board. Specifically, before the first negative pressure plate 9 operates to position the placed DBC board through the positioning suction cup 13, the locking inner plate 1501 inside the locking frame 15 can be operated through the cooperation of the transmission component, and the outer sleeve 7 can be locked by pushing the locking inner plate 1501 outward. By locking the corresponding outer sleeve 7 and inner sleeve 8, the subsequent positioning effect of the DBC board can be guaranteed, and the supporting effect can be guaranteed at the same time; Specifically, the transmission assembly includes a limit rod 16, which is rotatably mounted inside the ventilation slot 702. A positioning sleeve 17 is rotatably sleeved on the outer side of the limit rod 16. A connecting column 1701 and a driving arm 1703 are respectively fixed on the outer side of the positioning sleeve 17. A pull rope 1502 is connected between the driving arm 1703 and the locking inner plate 1501 to drive the locking inner plate 1501 to operate. A driving sheet 1702 is fixedly mounted on the outer side of the connecting column 1701. A second negative pressure plate 10 is fixedly mounted on the bottom of the body 1. A locking and connecting air nozzle 703 is fixedly installed at the end of the air slot 702. The locking and connecting air nozzle 703 is connected to the second negative pressure plate 10. Through the operation of the second negative pressure plate 10, negative pressure can be generated inside the vent slot 702. At this time, the driving plate 1702 can be stressed and drive the positioning sleeve 17 to rotate through the connecting column 1701, so that the driving plate 1702 can rotate with the positioning sleeve 17, pull the pull rope 1502, and make the locking inner plate 1501 slide outward and contact the inner sleeve 8, completing the locking process; Specifically, a rotating shaft 19 is rotatably installed inside the ventilation slot 702, and the pull rope 1502 passes around the rotating shaft 19 to ensure the transmission effect between the pull rope 1502 and the locking inner plate 1501; Specifically, a spring is installed between the end of the locking inner plate 1501 and the interior of the locking frame 15 to drive the locking inner plate 1501 to reset, and the spring is not shown in the figure; Specifically, a negative pressure channel 801 is provided inside the inner sleeve 8, an elastic sealing nozzle 802 is fixedly installed at the end of the negative pressure channel 801, a plurality of through holes 1301 are provided at the bottom of the positioning suction cup 13, and a plurality of negative pressure suction holes 1302 are provided at the top, and the plurality of through holes 1301 are communicated with the negative pressure channel 801; Specifically, the elastic sealing nozzle 802 is made of elastic rubber material. When the first negative pressure disk 9 is in operation, the elastic sealing nozzle 802 can be deformed by force, so that the negative pressure channel 801 and the inside of the outer sleeve 7 are connected to each other; Specifically, a connecting pipe 701 is fixedly installed at the end of the outer sleeve 7, and the end of the connecting pipe 701 is connected to the first negative pressure plate 9; Specifically, a negative pressure device 11 is fixedly installed at the bottom of the machine body 1. There are two negative pressure devices 11, which are respectively connected to the first negative pressure plate 9 and the second negative pressure plate 10. The negative pressure device 11 is an existing device and will not be described in detail here. Specifically, micro holes are provided inside the outer sleeve 7 so that when the DBC board is placed on the inner sleeve 8, the inner sleeve 8 can be retracted into the inner sleeve 7 due to force; Specifically, during the process of positioning the DBC board, the negative pressure device 11 continues to operate, and the micro-holes will not affect the positioning effect; An arc-shaped windshield frame 18 is fixedly installed inside the ventilation slot 702, and the connecting column 1701 passes through the arc-shaped windshield frame 18 and is slidably connected thereto. The arrangement of the arc-shaped windshield frame 18 can improve the driving effect of the driving sheet 1702; Specifically, a support plate 12 is fixedly installed inside the outer sleeve 7, and a plurality of support springs 1201 are installed between the inner sleeve 8 and the support plate 12. The inner sleeve 8 can be supported by the support springs 1201, so that the inner sleeve 8 can be reset when the DBC board is picked up after processing.

[0020] Embodiment 2: Based on Embodiment 1, refer to Figure 1-Figure 8 A clamping and positioning mechanism for processing a DBC board includes a body 1, a plurality of outer sleeves 7 are fixedly installed inside the body 1, an inner sleeve 8 is slidably connected inside the outer sleeve 7, a plurality of conical support members 14 are fixedly installed at the end of the inner sleeve 8 for supporting the placed DBC board, and a fixing sheet 1401 is connected between the plurality of conical support members 14. When processing the DBC board, the DBC board is first placed on the plurality of inner sleeves 8, at which time the bottom of the DBC board can contact with the plurality of conical support members 14 to achieve support, thereby reducing the contact area with the bottom of the DBC board and avoiding the sliding of the placed DBC board, thereby ensuring the subsequent processing effect; Specifically, after the DBC board is placed on the inner sleeve 8, due to gravity, the inner sleeve 8 can be forced to slide into the outer sleeve 7, so that the conical support members 14 at the ends of the multiple inner sleeves 8 can all contact with the bottom of the DBC board to complete the support; Specifically, the above support method is applicable to DBC boards of different shapes, such as a DBC board with an arc-shaped bottom. Through the cooperation of the conical support members 14 at the ends of the multiple inner sleeves 8, the support operation of the bottom of the DBC board can be completed; Furthermore, a positioning suction cup 13 is fixedly installed at the end of the inner sleeve 8, and a first negative pressure cup 9 which is interconnected with the inner sleeve 8 is fixedly installed at the bottom of the body 1. The positioning suction cup 13 is used to position the placed DBC board. When the DBC board is placed, the first negative pressure cup 9 is operated to generate negative pressure inside the plurality of inner sleeves 8, and the placed DBC board is positioned by the cooperation of the positioning suction cup 13. Specifically, a plurality of ventilation slots 702 are provided inside the outer sleeve 7, and a locking frame 15 is fixed inside each of the ventilation slots 702. A locking inner plate 1501 is slidably connected inside the locking frame 15. A transmission assembly is provided between the locking inner plate 1501 and the ventilation slots 702, which is used to lock the outer sleeve 7 and the inner sleeve 8 when positioning the placed DBC board, so as to support the bottom of the DBC board. Specifically, before the first negative pressure plate 9 operates to position the placed DBC board through the positioning suction cup 13, the locking inner plate 1501 inside the locking frame 15 can be operated through the cooperation of the transmission component, and the outer sleeve 7 can be locked by pushing the locking inner plate 1501 outward. By locking the corresponding outer sleeve 7 and inner sleeve 8, the subsequent positioning effect of the DBC board can be guaranteed, and the supporting effect can be guaranteed at the same time; Specifically, the transmission assembly includes a limit rod 16, which is rotatably mounted inside the ventilation slot 702. A positioning sleeve 17 is rotatably sleeved on the outer side of the limit rod 16. A connecting column 1701 and a driving arm 1703 are respectively fixed on the outer side of the positioning sleeve 17. A pull rope 1502 is connected between the driving arm 1703 and the locking inner plate 1501 to drive the locking inner plate 1501 to operate. A driving sheet 1702 is fixedly mounted on the outer side of the connecting column 1701. A second negative pressure plate 10 is fixedly mounted on the bottom of the body 1. A locking and connecting air nozzle 703 is fixedly installed at the end of the air slot 702. The locking and connecting air nozzle 703 is connected to the second negative pressure plate 10. Through the operation of the second negative pressure plate 10, negative pressure can be generated inside the vent slot 702. At this time, the driving plate 1702 can be stressed and drive the positioning sleeve 17 to rotate through the connecting column 1701, so that the driving plate 1702 can rotate with the positioning sleeve 17, pull the pull rope 1502, and make the locking inner plate 1501 slide outward and contact the inner sleeve 8, completing the locking process; Specifically, a rotating shaft 19 is rotatably installed inside the ventilation slot 702, and the pull rope 1502 passes around the rotating shaft 19 to ensure the transmission effect between the pull rope 1502 and the locking inner plate 1501; Specifically, a spring is installed between the end of the locking inner plate 1501 and the interior of the locking frame 15 to drive the locking inner plate 1501 to reset, and the spring is not shown in the figure; Specifically, a negative pressure channel 801 is provided inside the inner sleeve 8, an elastic sealing nozzle 802 is fixedly installed at the end of the negative pressure channel 801, a plurality of through holes 1301 are provided at the bottom of the positioning suction cup 13, and a plurality of negative pressure suction holes 1302 are provided at the top, and the plurality of through holes 1301 are communicated with the negative pressure channel 801; Specifically, the elastic sealing nozzle 802 is made of elastic rubber material. When the first negative pressure disk 9 is in operation, the elastic sealing nozzle 802 can be deformed by force, so that the negative pressure channel 801 and the inside of the outer sleeve 7 are connected to each other; Specifically, a connecting pipe 701 is fixedly installed at the end of the outer sleeve 7, and the end of the connecting pipe 701 is connected to the first negative pressure plate 9; Specifically, a negative pressure device 11 is fixedly installed at the bottom of the machine body 1. There are two negative pressure devices 11, which are respectively connected to the first negative pressure plate 9 and the second negative pressure plate 10. The negative pressure device 11 is an existing device and will not be described in detail here. Specifically, micro holes are provided inside the outer sleeve 7 so that when the DBC board is placed on the inner sleeve 8, the inner sleeve 8 can be retracted into the inner sleeve 7 due to force; Specifically, during the process of positioning the DBC board, the negative pressure device 11 continues to operate, and the micro-holes will not affect the positioning effect; An arc-shaped windshield frame 18 is fixedly installed inside the ventilation slot 702, and the connecting column 1701 passes through the arc-shaped windshield frame 18 and is slidably connected thereto. The arrangement of the arc-shaped windshield frame 18 can improve the driving effect of the driving sheet 1702; Specifically, a support plate 12 is fixedly installed inside the outer sleeve 7, and a plurality of support springs 1201 are installed between the inner sleeve 8 and the support plate 12. The inner sleeve 8 can be supported by the support springs 1201, so that the inner sleeve 8 can be reset when the DBC board is picked up after processing. Furthermore, an assembly component is provided on the outer side of the body 1 for installing the body 1 and adjusting the angle of the body 1. The assembly component includes an assembly frame 2. Rotating shafts 101 are fixed at both ends of the body 1. The rotating shaft 101 is rotatably connected to the assembly frame 2. A sliding rod 4 is fixed on the side of the body 1 away from the rotating shaft 101. Limiting frames 3 are fixed on both sides of the interior of the assembly frame 2. The sliding rod 4 is slidably installed inside the limiting frames 3. A fixing plate 5 is fixedly installed inside the assembly frame 2 and an adjusting cylinder 6 is fixed through the fixing plate 5. The piston end of the adjusting cylinder 6 is rotatably connected to the bottom of the body 1. Through the setting of the assembly frame 2, after the assembly frame 2 is installed, as the adjusting cylinder 6 runs, the body 1 can be driven to rotate along the rotating shaft 101 to adjust the angle of the locked DBC plate, thereby further improving the working efficiency and convenience.

[0021] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0022] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A clamping and positioning mechanism for DBC plate processing, comprising a body (1), characterized in that: A plurality of outer sleeves (7) are fixedly installed inside the machine body (1), an inner sleeve (8) is slidably connected inside the outer sleeve (7), a plurality of conical support members (14) are fixedly installed at the end of the inner sleeve (8) for supporting the placed DBC board, and a fixing plate (1401) is connected between the plurality of conical support members (14); A positioning suction cup (13) is fixedly mounted on the end of the inner sleeve (8), and a first negative pressure plate (9) in communication with the inner sleeve (8) is fixedly mounted on the bottom of the machine body (1), wherein the positioning suction cup (13) is used to position a placed DBC board; The outer sleeve (7) is provided with a plurality of ventilation slots (702) inside, and a locking frame (15) is fixed inside each of the ventilation slots (702). A locking inner plate (1501) is slidably connected inside the locking frame (15). A transmission assembly is provided between the locking inner plate (1501) and the inside of the ventilation slots (702) for locking the outer sleeve (7) and the inner sleeve (8) when positioning a placed DBC board, thereby providing support for the bottom of the DBC board.

2. According to claim 1, a clamping and positioning mechanism for DBC board processing, characterized in that: The transmission assembly comprises a limit rod (16), wherein the limit rod (16) is rotatably mounted inside the ventilation slot (702), and a positioning sleeve (17) is rotatably sleeved on the outer side of the limit rod (16), and a connecting column (1701) and a driving arm (1703) are respectively fixed on the outer side of the positioning sleeve (17), and a pull rope (1502) is connected between the driving arm (1703) and the locking inner plate (1501) for driving the locking inner plate (1501) to operate, and a driving plate (1702) is fixedly mounted on the outer side of the connecting column (1701), and a second negative pressure plate (10) is fixedly mounted on the bottom of the body (1), and a locking connecting air nozzle (703) is fixedly mounted on the end of the ventilation slot (702), and the locking connecting air nozzle (703) is communicated with the second negative pressure plate (10).

3. The clamping and positioning mechanism for DBC board processing according to claim 2 is characterized in that: A rotating shaft (19) is rotatably mounted inside the ventilation slot (702), and the pull rope (1502) passes around the rotating shaft (19).

4. The clamping and positioning mechanism for DBC board processing according to claim 1 is characterized in that: A spring is installed between the end of the locking inner plate (1501) and the interior of the locking frame (15) to drive the locking inner plate (1501) to reset.

5. The clamping and positioning mechanism for DBC board processing according to claim 1 is characterized in that: A negative pressure channel (801) is provided inside the inner sleeve (8), an elastic sealing nozzle (802) is fixedly installed at the end of the negative pressure channel (801), a plurality of through holes (1301) are provided at the bottom of the positioning suction cup (13), and a plurality of negative pressure suction holes (1302) are provided at the top, and the plurality of through holes (1301) are communicated with the negative pressure channel (801).

6. The clamping and positioning mechanism for DBC board processing according to claim 1 is characterized in that: A connecting pipe (701) is fixedly mounted on the end of the outer sleeve (7), and the end of the connecting pipe (701) is in communication with the first negative pressure plate (9).

7. The clamping and positioning mechanism for DBC board processing according to claim 1 is characterized in that: A negative pressure device (11) is fixedly mounted on the bottom of the machine body (1), and the negative pressure devices (11) are provided in two pieces and are respectively connected to a first negative pressure plate (9) and a second negative pressure plate (10).

8. The clamping and positioning mechanism for DBC board processing according to claim 1 is characterized in that: An arc-shaped wind shield (18) is fixedly installed inside the ventilation slot (702), and the connecting column (1701) passes through the arc-shaped wind shield (18) and is slidably connected thereto.

9. The clamping and positioning mechanism for DBC board processing according to claim 1 is characterized in that: A support plate (12) is fixedly mounted inside the outer sleeve (7), and a plurality of support springs (1201) are mounted between the inner sleeve (8) and the support plate (12).

10. The clamping and positioning mechanism for DBC board processing according to claim 1, characterized in that: An assembly component is provided on the outside of the machine body (1) for installing the machine body (1) and adjusting the angle of the machine body (1). The assembly component comprises an assembly frame (2). Rotating shafts (101) are fixed at both ends of the machine body (1). The rotating shafts (101) are rotatably connected to the assembly frame (2). A sliding rod (4) is fixed on the side of the machine body (1) away from the rotating shaft (101). Limiting frames (3) are fixed on both sides of the assembly frame (2). The sliding rod (4) is slidably installed inside the limiting frames (3). A fixing plate (5) is fixed inside the assembly frame (2) and an adjusting cylinder (6) is fixed via the fixing plate (5). The piston end of the adjusting cylinder (6) is rotatably connected to the bottom of the machine body (1).

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