Multi-layer circuit board pressing device

Abstract

The utility model relates to the technical field of circuit board production, in particular to a multilayer circuit board pressing device which comprises an operation table and a pressure-bearing bottom plate, a first installation groove is formed in the top of the operation table, two second installation grooves are formed in one side of the first installation groove, a lead screw is installed in each second installation groove, and a lead screw is installed in each lead screw. The two sides of the interior of the first mounting groove are each movably provided with a gear rotating shaft, the outer sides of the two gear rotating shafts are sleeved with a transmission chain, a motor is mounted on one side of the first mounting groove, and the output end of the motor extends into the first mounting groove to be connected with one end of one gear rotating shaft; and the two threaded blocks extend into the two second mounting grooves correspondingly, and the threaded blocks are arranged on the outer side of the lead screw in a sleeving mode through thread engagement. According to the utility model, a worker can be prevented from being in contact with the pressing device in the process of taking out the pressed circuit board, so that the limbs of the worker are prevented from being scalded, and the safety in the operation process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to a multi-layer circuit board pressing device. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum base board, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances.

[0003] During the production process of circuit boards, a multi-layer circuit board pressing device is required to press them. However, the existing multi-layer circuit board pressing device usually adopts hot pressing technology. Therefore, the temperature of the circuit board pressing area is very high. After the circuit board is pressed, the staff needs to take it out from the pressing device by hand. This process may cause burns to the staff's limbs, which is very dangerous.

[0004] For this purpose, a multi-layer circuit board pressing device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-layer circuit board pressing device to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer circuit board pressing device, comprising an operating table and a pressure-bearing base plate, a first mounting groove is installed on the top of the operating table, two second mounting grooves are installed on one side of the first mounting groove, a screw rod is installed inside each of the two second mounting grooves, a gear shaft is movably installed on both sides of the first mounting groove, a transmission chain is sleeved on the outer sides of the two gear shafts, a motor is installed on one side of the first mounting groove, the output end of the motor extends into the first mounting groove and is connected to one end of a gear shaft, a threaded block is installed on both sides of the pressure-bearing base plate, the two threaded blocks extend into the interiors of the two second mounting grooves respectively, and the threaded blocks are sleeved on the outer sides of the screw rod through threaded engagement.

[0006] Preferably, four supporting legs are installed at the bottom of the operating table, and the four supporting legs are respectively located at four corners of the bottom of the operating table.

[0007] Preferably, a support frame is installed at each of the four corners of the top of the operating table, and a top plate is installed at the top of the support frame.

[0008] Preferably, a hydraulic telescopic rod is installed at the top end of the support frame, and the output end of the hydraulic telescopic rod passes through the interior of the top plate, and a pressing plate is installed at the output end of the hydraulic telescopic rod.

[0009] Preferably, a plurality of limiting slide grooves are provided at equal distances on the top of the operating table, and one end of the limiting slide groove passes through the interior of the operating table.

[0010] Preferably, a plurality of sliding blocks are installed at equal distances at the bottom of the pressure-bearing bottom plate, and the bottom of the sliding block is slidably installed inside the limiting sliding groove.

[0011] Compared with the prior art, the utility model provides a multi-layer circuit board pressing device, which has the following beneficial effects:

[0012] By providing a motor, a gear shaft, a transmission chain, a pressure base plate, a threaded block and a screw rod, the rotation of the motor output end can drive one gear shaft to rotate. When one gear shaft rotates, the transmission action of the transmission chain can drive the other gear shaft to rotate. The rotation of the two gear shafts can drive the two screw rods to rotate. Since the threaded blocks installed on both sides of the pressure base plate extend into the second installation grooves respectively and are arranged on the outside of the screw rods through threaded engagement, when the screw rod rotates, the threaded blocks will move along the installation direction of the screw rod, thereby driving the pressure base plate to move between the two second installation grooves. Therefore, after the circuit board above the pressure base plate is pressed, the pressure base plate is controlled to slide out from between the two second installation grooves, thereby preventing the staff from contacting the pressing device when taking out the pressed circuit board, so as to avoid scalding the limbs of the staff and ensure safety during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0015] Figure 3 It is a side view structural schematic diagram of the utility model;

[0016] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0017] In the figure: 1. operating table; 2. support frame; 3. top plate; 4. hydraulic telescopic rod; 5. pressing plate; 6. pressure-bearing bottom plate; 7. supporting leg; 8. motor; 9. transmission chain; 10. first mounting groove; 11. gear shaft; 12. screw rod; 13. second mounting groove; 14. threaded block; 15. limit slide groove; 16. slider. DETAILED DESCRIPTION

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

[0019] Embodiment 1: A first mounting groove 10 is installed on the top of the operating table 1, and two second mounting grooves 13 are installed on one side of the first mounting groove 10, and a screw rod 12 is installed inside each of the two second mounting grooves 13. A gear shaft 11 is movably installed on both sides of the first mounting groove 10, and a transmission chain 9 is sleeved on the outer sides of the two gear shafts 11. A motor 8 is installed on one side of the first mounting groove 10, and the output end of the motor 8 extends into the first mounting groove 10 and is connected to one end of a gear shaft 11. A threaded block 14 is installed on both sides of the pressure base plate 6, and the two threaded blocks 14 extend into the interior of the two second mounting grooves 13 respectively, and the threaded blocks 14 are sleeved on the outer sides of the screw rod 12 through threaded engagement.

[0020] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, since the output end of the motor 8 extends into the first mounting groove 10 and is connected to one end of a gear shaft 11, the rotation of the output end of the motor 8 can drive one gear shaft 11 to rotate. Since a transmission chain 9 is sleeved between the two gear shafts 11, when one gear shaft 11 rotates, the other gear shaft 11 can be driven to rotate through the transmission effect of the transmission chain 9. Since one end of the two gear shafts 11 is respectively connected to one end of two screw rods 12, the rotation of the two gear shafts 11 can drive the two screw rods 12 to rotate. The threaded blocks 14 installed on both sides of the pressure base plate 6 extend into the second mounting grooves 13 respectively and are sleeved on the outside of the screw rod 12 through threaded engagement. Therefore, when the screw rod 12 rotates, the threaded blocks 14 will move along the installation direction of the screw rod 12, thereby driving the pressure base plate 6 to move between the two second mounting grooves 13. Therefore, after the circuit board above the pressure base plate 6 is pressed, the pressure base plate 6 is controlled to slide out from between the two second mounting grooves 13, thereby preventing the staff from contacting the pressing device during the process of removing the pressed circuit board, so as to prevent the staff from being scalded and ensure safety during operation.

[0021] Embodiment 2: Four supporting legs 7 are installed at the bottom of the operating platform 1, and the four supporting legs 7 are respectively located at the four corners of the bottom of the operating platform 1, a supporting frame 2 is respectively installed at the four corners of the top of the operating platform 1, and a top plate 3 is installed at the top of the supporting frame 2, a hydraulic telescopic rod 4 is installed at the top of the supporting frame 2, and the output end of the hydraulic telescopic rod 4 passes through the interior of the top plate 3, and a pressing plate 5 is installed at the output end of the hydraulic telescopic rod 4, a plurality of limiting slide grooves 15 are equidistantly opened on the top of the operating platform 1, and one end of the limiting slide groove 15 passes through the interior of the operating platform 1, a plurality of sliding blocks 16 are equidistantly installed at the bottom of the pressure bottom plate 6, and the bottom of the sliding block 16 is slidably installed inside the limiting slide groove 15.

[0022] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the circuit board is placed on the pressure-bearing base plate 6, the circuit board to be pressed is moved to the bottom of the pressing plate 5 by moving the pressure-bearing base plate 6, and then the pressing plate 5 can be driven to move downward by controlling the extension of the output end of the hydraulic telescopic rod 4, so as to press the circuit board to be pressed placed on the pressure-bearing base plate 6. During the circuit board pressing process, the slider 16 installed at the bottom of the pressure-bearing base plate 6 will support the pressure-bearing base plate 6 to prevent the pressure-bearing base plate 6 from deforming when it is under pressure. At the same time, during the movement of the pressure-bearing base plate 6, the slider 16 installed at the bottom of the pressure-bearing base plate 6 will slide along the opening direction of the limiting slide groove 15, so as to improve the stability of the pressure-bearing base plate 6 during the movement. Since four supporting legs 7 are installed at the bottom of the operating table 1, the entire device can be stably placed at the specified position through the four supporting legs 7.

[0023] Working principle: When in use, the pressure base plate 6 is controlled to slide out from between the two second mounting grooves 13 by the rotation of the output end of the motor 8, and then the circuit board to be pressed is placed on the top of the pressure base plate 6, and then the circuit board to be pressed placed on the top of the pressure base plate 6 is driven to move to the bottom of the pressing plate 5 by the rotation of the output end of the motor 8, and then the pressing plate 5 can be driven to move downward by controlling the extension of the output end of the hydraulic telescopic rod 4, so as to press the circuit board to be pressed placed on the top of the pressure base plate 6. During the circuit board pressing process, the slider 1 installed at the bottom of the pressure base plate 6 6 will support the pressure-bearing bottom plate 6 to prevent the pressure-bearing bottom plate 6 from being deformed during the pressure-bearing process. After the circuit board is pressed, the pressure-bearing bottom plate 6 is pushed out from between the two second mounting grooves 13 by rotating the output end of the motor 8 again. At this time, the circuit board after pressing will be exposed to the outside of the pressing device, and the operator can remove the pressed circuit board from above the pressure-bearing bottom plate 6, avoiding contact between the operator and the pressing device during the process of removing the pressed circuit board, so as to avoid burns to the operator's limbs, thereby ensuring safety during the operation.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multi-layer circuit board pressing device, comprising an operating table (1) and a pressure-bearing base plate (6), characterized in that: A first mounting groove (10) is installed on the top of the operating table (1), two second mounting grooves (13) are installed on one side of the first mounting groove (10), a screw rod (12) is installed inside each of the two second mounting grooves (13), a gear shaft (11) is movably installed on each of the two sides inside the first mounting groove (10), a transmission chain (9) is sleeved on the outer sides of the two gear shafts (11), a motor (8) is installed on one side of the first mounting groove (10), an output end of the motor (8) extends into the first mounting groove (10) and is connected to one end of a gear shaft (11), a threaded block (14) is installed on each of the two sides of the pressure-bearing bottom plate (6), the two threaded blocks (14) extend into the two second mounting grooves (13), and the threaded blocks (14) are sleeved on the outer sides of the screw rod (12) through threaded engagement.

2. The multilayer circuit board pressing device according to claim 1, characterized in that: Four supporting legs (7) are installed at the bottom of the operating table (1), and the four supporting legs (7) are respectively located at four corners of the bottom of the operating table (1).

3. The multi-layer circuit board pressing device according to claim 1, characterized in that: A support frame (2) is respectively installed at the four corners of the top of the operating table (1), and a top plate (3) is installed at the top of the support frame (2).

4. The multi-layer circuit board pressing device according to claim 3, characterized in that: A hydraulic telescopic rod (4) is installed at the top end of the support frame (2), and the output end of the hydraulic telescopic rod (4) passes through the interior of the top plate (3), and a pressing plate (5) is installed at the output end of the hydraulic telescopic rod (4).

5. The multi-layer circuit board pressing device according to claim 1, characterized in that: A plurality of limiting sliding grooves (15) are provided at equal distances on the top of the operating table (1), and one end of the limiting sliding groove (15) passes through the interior of the operating table (1).

6. The multi-layer circuit board pressing device according to claim 1, characterized in that: A plurality of sliding blocks (16) are installed at equal distances at the bottom of the pressure-bearing bottom plate (6), and the bottoms of the sliding blocks (16) are slidably installed inside the limiting sliding grooves (15).

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