A flying material prevention vacuum adsorption patch jig

Abstract

This utility model relates to the field of patch fixture technology, and more particularly to a vacuum adsorption patch fixture for preventing material flying. It includes a fixture body, on which baffles are symmetrically slidably mounted via a supporting sliding assembly. A threaded rod is horizontally rotatably mounted on the lower surface of the fixture body, and movable blocks are symmetrically threaded onto the threaded rod. Connecting rods are vertically fixedly mounted on the upper surfaces of two movable blocks, and the upper ends of the two connecting rods are respectively fixedly connected to the lower surfaces of the two baffles. A drive motor is fixedly mounted on the side of the fixture body via a bracket. The baffles of this utility model can block suction holes not covered by the patch, preventing external air from entering the adsorption chamber through these holes, ensuring stable negative pressure in the adsorption area, and thus ensuring that small-sized patches can be firmly adsorbed. This solves the problem in existing fixtures where small-sized patches cannot be fully covered by multiple suction holes, leading to adsorption failure or insufficient adsorption force.

Description

Technical Field

[0001] This utility model relates to the field of patch fixture technology, and in particular to a vacuum adsorption patch fixture that prevents material from flying out. Background Technology

[0002] In the automated production process of electronic components, the vacuum adsorption function of the surface mount fixture is the core link to ensure the accuracy and stability of surface mount. The current mainstream vacuum adsorption surface mount fixtures usually have multiple suction holes of fixed size and distribution density on the adsorption panel. The vacuum pump draws air to form negative pressure to achieve adsorption and fixation of the surface mount.

[0003] However, when dealing with patches of different sizes, this structural design is problematic. When handling small patches, the patch area is much smaller than the distribution area of ​​the suction holes, so the patch cannot completely cover multiple suction holes. The uncovered suction holes will continue to be connected to the outside atmosphere, causing the negative pressure in the adsorption area to be lost rapidly. The vacuum degree cannot reach the threshold required for effective adsorption, ultimately causing the patch to fail to adsorb or have insufficient adsorption force. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: when processing small-sized patches, because the patch area is much smaller than the distribution area of ​​the suction holes, the patch cannot completely cover multiple suction holes. The uncovered suction holes will continue to be connected to the outside atmosphere, causing the negative pressure in the adsorption area to be lost rapidly. The vacuum degree cannot reach the threshold required for effective adsorption, ultimately causing the patch adsorption to fail or the adsorption force to be insufficient. Therefore, this invention proposes a vacuum adsorption patch fixture to prevent flying material.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vacuum adsorption patch fixture for preventing flying materials includes a fixture body, an adsorption cavity is provided inside the fixture body, and a plurality of suction holes are provided at equal intervals on the upper surface of the fixture body, all of which are connected to the adsorption cavity.

[0007] The fixture body has baffles symmetrically slidably mounted on it via a supporting sliding assembly. The two baffles are slidably and sealingly mounted on the upper surface of the fixture body. The lower surface of the fixture body has a threaded rod with opposite thread directions at its left and right ends, which is horizontally rotatably mounted on it. The threaded rod has a movable block symmetrically threaded onto it. The upper surfaces of the two movable blocks are vertically fixedly mounted with connecting rods. The upper ends of the two connecting rods are fixedly connected to the lower surfaces of the two baffles, respectively. The side of the fixture body has a drive motor fixedly mounted on it via a bracket. The output end of the drive motor is fixedly connected to one end of the threaded rod.

[0008] Preferably, the supporting sliding assembly includes two slide rails respectively installed on both sides of the fixture body, multiple sliders respectively slidably installed on the two slide rails, and multiple support rods respectively installed on the multiple sliders by elastic components, and the multiple support rods are respectively fixedly connected to both sides of the baffle.

[0009] Preferably, the elastic component includes a mounting block fixedly mounted on the slider, a rectangular block fixedly mounted on one end of the support rod, and a telescopic spring mounted on the rectangular block. The upper end of the mounting block has a rectangular groove, the rectangular block is vertically slidably mounted in the rectangular groove, and the lower end of the telescopic spring is fixedly connected to the bottom of the rectangular groove.

[0010] Preferably, a push plate is fixedly installed at one end of each of the two baffles, and a rubber pad is fixedly installed on one side of each of the two push plates.

[0011] Preferably, a support block is fixedly installed on the upper surface of the fixture body, and an ion fan is fixedly installed on the upper end of the support block.

[0012] Preferably, a plurality of connecting ears are fixedly installed on the side of the main body of the fixture, and each of the plurality of connecting ears is provided with a connecting hole.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By driving the threaded rod to rotate through the drive motor, two baffles slide symmetrically on the upper surface of the fixture body. The position of the baffles can be flexibly adjusted according to the size of the patch. When processing small patches, the baffles can block the suction holes not covered by the patch, preventing outside air from entering the adsorption chamber through these suction holes, ensuring the stability of the negative pressure in the adsorption area, and thus ensuring that small patches can be firmly adsorbed. This solves the problem of adsorption failure or insufficient adsorption force caused by small patches not being able to fully cover multiple suction holes in existing fixtures.

[0015] 2. Ionizing fans can effectively neutralize static electricity on the surface of the chip and fixture, reduce the impact of static electricity on the chip, and reduce the probability of material flying. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of a vacuum adsorption patch fixture for preventing flying materials proposed in this utility model;

[0017] Figure 2 This is a bottom-view three-dimensional structural diagram of a vacuum adsorption patch fixture for preventing flying materials proposed in this utility model;

[0018] Figure 3 A schematic diagram of the three-dimensional cross-sectional structure of the slide rail, slider, support rod, and elastic components;

[0019] Figure 4 for Figure 1Enlarged view of the structure at point A in the middle.

[0020] In the diagram: 1. Fixture body, 2. Baffle, 3. Threaded rod, 4. Moving block, 5. Connecting rod, 6. Drive motor, 7. Slide rail, 8. Slider, 9. Support rod, 10. Mounting block, 11. Rectangular block, 12. Telescopic spring, 13. Push plate, 14. Connecting ear, 15. Ion fan. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-2 A vacuum adsorption patch fixture for preventing flying materials includes a fixture body 1, an adsorption cavity is provided inside the fixture body 1, and a plurality of suction holes are provided at equal intervals on the upper surface of the fixture body 1, all of which are connected to the adsorption cavity. The fixture body 1 serves as the basic support structure of the fixture, the adsorption cavity is used to form a negative pressure environment, and the suction holes are the channels for negative pressure to be transmitted to the patch. When the adsorption cavity is evacuated, the suction holes can adsorb the patch onto the upper surface of the fixture body 1 through negative pressure.

[0023] Two baffles 2 are symmetrically slidably mounted on the main body 1 of the fixture via a supporting sliding assembly. The two baffles 2 are slidably and sealingly mounted on the upper surface of the main body 1 of the fixture. A threaded rod 3 with opposite thread directions at both ends is horizontally rotatably mounted on the lower surface of the main body 1 of the fixture. A movable block 4 is symmetrically threaded onto the threaded rod 3. A connecting rod 5 is vertically fixedly mounted on the upper surface of each of the two movable blocks 4. The upper ends of the two connecting rods 5 are fixedly connected to the lower surfaces of the two baffles 2 respectively. A drive motor 6 is fixedly mounted on the side of the main body 1 via a bracket. The output end of the drive motor 6 is fixedly connected to one end of the threaded rod 3.

[0024] Reference Figure 4 The drive motor 6 provides power for the movement of the baffle 2. When the drive motor 6 starts, its output end drives the threaded rod 3 to rotate. Since the threads at the left and right ends of the threaded rod 3 are opposite in direction and the moving block 4 is threadedly connected to the threaded rod 3, when the threaded rod 3 rotates, the two moving blocks 4 will move relatively closer or further away along the threaded rod 3. The movement of the moving blocks 4 is transmitted to the baffle 2 through the connecting rod 5, causing the two baffles 2 to slide symmetrically on the upper surface of the fixture body 1. The sealed sliding cooperation between the baffle 2 and the fixture body 1 can ensure that the baffle 2 will not damage the sealing of the adsorption chamber when it slides. The baffle 2 can block the suction holes that are not covered by the patch, preventing the outside atmosphere from entering the adsorption chamber through these suction holes, ensuring the stability of the negative pressure in the adsorption area, thereby ensuring that small-sized patches can be firmly adsorbed. This solves the problem in existing fixtures where small-sized patches cannot fully cover multiple suction holes, resulting in adsorption failure or insufficient adsorption force.

[0025] Reference Figure 3 The supporting sliding assembly includes two slide rails 7 respectively installed on both sides of the fixture body 1, multiple sliders 8 respectively slidably installed on the two slide rails 7, and multiple support rods 9 respectively installed on the multiple sliders 8 through elastic components. The multiple support rods 9 are fixedly connected to both sides of the baffle 2. The elastic component includes a mounting block 10 fixedly installed on the slider 8, a rectangular block 11 fixedly installed on one end of the support rod 9, and a telescopic spring 12 installed on the rectangular block 11. A rectangular groove is opened at the upper end of the mounting block 10, the rectangular block 11 is vertically slidably installed in the rectangular groove, and the lower end of the telescopic spring 12 is fixedly connected to the bottom of the rectangular groove.

[0026] The slide rail 7 provides a sliding track for the slider 8. The slider 8 is connected to the baffle 2 through the support rod 9. When the baffle 2 slides, the slider 8 will slide synchronously along the slide rail 7, providing guidance and support for the sliding of the baffle 2, ensuring that the baffle 2 moves stably in a straight line. The telescopic spring 12 is in a stretched state. Under the action of the elastic force of the telescopic spring 12, the rectangular block 11 makes the baffle 2 bear the vertical tension through the support rod 9, ensuring that the baffle 2 is tightly attached to the surface of the fixture body 1, avoiding gaps between the baffle 2 and the surface of the fixture body 1, and further enhancing the sealing performance.

[0027] Push plates 13 are fixedly installed on the opposite ends of the two baffles 2. Rubber pads are fixedly installed on the opposite sides of the two push plates 13. The push plates 13 move synchronously with the baffles 2. When the two baffles 2 are close to each other, the push plates 13 can assist in fixing the patch from both sides to prevent the patch from shifting horizontally during the adsorption process. The rubber pads are elastic and non-slip, which can not only avoid the rigid contact between the push plates 13 and the patch, causing damage to the patch, but also increase the friction with the patch and improve the fixing effect.

[0028] A support block is fixedly installed on the upper surface of the fixture body 1, and an ion fan 15 is fixedly installed on the upper end of the support block. The support block is used to fix the ion fan 15 and make it stably positioned above the fixture body 1. When the ion fan 15 is working, it blows an airflow with positive and negative ions onto the patch and the surface of the fixture body 1, which can neutralize the static electricity generated by friction between the patch and the surface of the fixture, and prevent the patch from being displaced or flying due to static electricity. Combined with vacuum adsorption, the anti-flying effect is further improved.

[0029] Multiple connecting ears 14 are fixedly installed on the side of the fixture body 1. Each connecting ear 14 has a connecting hole. The connecting ears 14 can be connected to external equipment through the connecting holes, which makes it easy to fix the entire fixture in the working position, ensuring that the fixture will not be displaced during the placement process and guaranteeing the placement accuracy.

[0030] In this invention, when the drive motor 6 starts, its output end drives the threaded rod 3 to rotate. The two moving blocks 4 move relatively closer or further away along the threaded rod 3. The movement of the moving blocks 4 is transmitted to the baffle 2 through the connecting rod 5, causing the two baffles 2 to slide symmetrically on the upper surface of the fixture body 1. The baffles 2 can block the suction holes not covered by the patch, preventing the outside atmosphere from entering the adsorption chamber through these suction holes, ensuring the stability of the negative pressure in the adsorption area, thereby ensuring that small-sized patches can be firmly adsorbed. This solves the problem in existing fixtures where small-sized patches cannot fully cover multiple suction holes, resulting in adsorption failure or insufficient adsorption force.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum adsorption patch fixture for preventing flying materials, comprising a fixture body (1), characterized in that, The fixture body (1) has an adsorption cavity inside, and the upper surface of the fixture body (1) has a plurality of suction holes that are all connected to the adsorption cavity at equal intervals. The fixture body (1) is symmetrically and slidably mounted with baffles (2) via a support sliding assembly. The two baffles (2) are slidably and sealed on the upper surface of the fixture body (1). The lower surface of the fixture body (1) is horizontally and rotatably mounted with threaded rods (3) with opposite thread directions at the left and right ends. The threaded rods (3) are symmetrically threaded with moving blocks (4). The upper surfaces of the two moving blocks (4) are vertically fixed with connecting rods (5). The upper ends of the two connecting rods (5) are fixedly connected to the lower surfaces of the two baffles (2) respectively. The side of the fixture body (1) is fixedly mounted with a drive motor (6) via a bracket. The output end of the drive motor (6) is fixedly connected to one end of the threaded rod (3).

2. The anti-flying material vacuum adsorption patch fixture according to claim 1, characterized in that, The supporting sliding assembly includes two slide rails (7) respectively installed on both sides of the fixture body (1), multiple sliders (8) respectively slidably installed on the two slide rails (7), and multiple support rods (9) respectively installed on the multiple sliders (8) through elastic components. The multiple support rods (9) are fixedly connected to both sides of the baffle (2).

3. The anti-flying material vacuum adsorption patch fixture according to claim 2, characterized in that, The elastic component includes a mounting block (10) fixedly mounted on the slider (8), a rectangular block (11) fixedly mounted on one end of the support rod (9), and a telescopic spring (12) mounted on the rectangular block (11). The upper end of the mounting block (10) is provided with a rectangular groove, the rectangular block (11) is vertically slidably mounted in the rectangular groove, and the lower end of the telescopic spring (12) is fixedly connected to the bottom of the rectangular groove.

4. The anti-flying material vacuum adsorption patch fixture according to claim 1, characterized in that, Push plates (13) are fixedly installed on one end of each of the two baffles (2), and rubber pads are fixedly installed on one side of each of the two push plates (13).

5. The anti-flying material vacuum adsorption patch fixture according to claim 1, characterized in that, A support block is fixedly installed on the upper surface of the fixture body (1), and an ion fan (15) is fixedly installed on the upper end of the support block.

6. The anti-flying material vacuum adsorption patch fixture according to claim 1, characterized in that, The main body (1) of the fixture is fixedly installed with multiple connecting ears (14) on its side, and each of the multiple connecting ears (14) is provided with a connecting hole.

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