A workpiece positioning and clamping mechanism and a PCB board assembly equipment containing the mechanism.

Abstract

This utility model discloses a workpiece positioning and clamping mechanism and a PCB assembly device containing the mechanism, relating to the field of PCB manufacturing technology. It includes a fixed base plate and a clamping assembly. The fixed base plate is an integrated structure, with fixed plates mounted on both sides of the rear end of the upper surface of the fixed base plate. The clamping assembly is disposed on the surface of the fixed plates and includes a fixed frame, a bidirectional threaded support rod, an anti-slip knob, a movable block, a limiting clamping frame, and a silicone buffer pad. The fixed frame is disposed at the rear end of the inner side of the fixed plate. This workpiece positioning and clamping mechanism and the PCB assembly device containing it enable stable and effective clamping of the PCB board through the clamping assembly. The clamping tightness is adjustable to accommodate PCB boards of different sizes, avoiding board deformation caused by rigid clamping in traditional mechanisms. The positioning assembly enables automatic positioning of the PCB board pressing position, thereby improving overall assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of PCB manufacturing technology, specifically to a workpiece positioning and clamping mechanism and a PCB assembly equipment containing the mechanism. Background Technology

[0002] PCB assembly equipment is automated industrial equipment used to precisely mount electronic components onto printed circuit boards and complete processes such as soldering and testing. It is a core production equipment in the electronics manufacturing industry. Through high-precision mounting, intelligent soldering, and automated testing technologies, it achieves efficient and reliable connections between electronic components and PCBs, and is widely used in consumer electronics, communication equipment, and other fields. However, current PCB assembly equipment still has the following shortcomings:

[0003] For example, patent document CN221634063U discloses a PCB assembly device. This PCB assembly device positions the fixture plate using a positioning device, and then the operating adjustment mechanism lowers the second lifting plate to press the first and second limiting posts against the fixture plate, thus fixing the fixture plate. A transfer device then transports the PCB plate onto the fixture plate for rapid assembly. However, this device is not suitable for stable and effective clamping of the PCB plate, and the rigid clamping can easily cause deformation of the board. Utility Model Content

[0004] The purpose of this utility model is to provide a workpiece positioning and clamping mechanism and a PCB board assembly equipment containing the mechanism, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a workpiece positioning and clamping mechanism, comprising a fixed base plate and a clamping assembly. The fixed base plate is an integrated structure, and fixed plates are installed on both sides of the rear end of the upper surface of the fixed base plate. The clamping assembly is disposed on the surface of the fixed plate and includes a fixed frame, a bidirectional threaded support rod, an anti-slip knob, a movable block, a limiting clamping frame, and a silicone buffer pad. The fixed frame is disposed at the rear end of the inner side of the fixed plate, and the two side surfaces of the fixed frame are tightly connected to the surface of the rear end of the inner side of the fixed plate. The rear end of the fixed plate is rotatably connected to the bidirectional threaded support rod, and an anti-slip knob is installed on the right side of the bidirectional threaded support rod. The anti-slip knob and the bidirectional threaded support rod are an integrated structure tightly connected.

[0006] Furthermore, the two ends of the bidirectional threaded support rod are threadedly connected to movable blocks, and the outer surface of the movable blocks is slidably connected to the inner surface of the fixed frame.

[0007] Furthermore, a limiting clamping frame is installed on the front side of the movable block, and two sets of limiting clamping frames are symmetrically arranged. A silicone buffer pad is connected to the inner surface of the limiting clamping frame.

[0008] A PCB assembly device is provided, which is equipped with the workpiece positioning and clamping mechanism as described above, including a storage base and a positioning component. The storage base is equipped with casters on its lower surface and a support base plate on its upper surface. The positioning component is disposed on the upper surface of the support base plate and includes a front support frame, a rear support frame, a support limit plate, a servo motor, a threaded support screw, a movable frame, a stepper motor, a threaded screw, and a movable seat.

[0009] Furthermore, the front support frame is disposed at the front end of the upper surface of the support base plate, and the rear support frame is installed at the rear end of the upper surface of the support base plate, with support limiting plates disposed on both sides of the upper front surface of the rear support frame.

[0010] Furthermore, a servo motor is installed on the upper rear surface of the rear support frame, and the output end of the servo motor is connected to a threaded support screw through a coupling. A movable frame is threadedly connected to the surface of the threaded support screw, and the lower surfaces of both ends of the movable frame are slidably connected to the upper surface of the support limiting plate.

[0011] Furthermore, a stepper motor is installed inside the right end of the movable frame, and the output end of the stepper motor is connected to a threaded screw via a coupling, with a movable seat threaded onto the surface of the threaded screw.

[0012] Furthermore, a limiting frame is installed at the bottom of the movable seat, and a hydraulic push rod is provided inside the limiting frame. A connecting plate is installed at the bottom of the hydraulic push rod, and a pressing mechanism is provided on the front side of the connecting plate.

[0013] This utility model provides a workpiece positioning and clamping mechanism and a PCB board assembly equipment containing the mechanism, which has the following beneficial effects:

[0014] 1. This utility model features a clamping assembly comprising a fixed frame, a bidirectional threaded support rod, an anti-slip knob, movable blocks, a limiting clamping frame, and a silicone buffer pad. In use, the PCB board is placed between two sets of limiting clamping frames. Rotating the anti-slip knob causes the bidirectional threaded support rod to rotate along the surface of the fixed frame. The bidirectional threaded support rod then moves the two sets of movable blocks towards each other along the inner surface of the fixed frame, further moving the two sets of limiting clamping frames downwards until they clamp and limit the PCB board. The silicone buffer pad protects the PCB board at the contact point with the limiting clamping frames, preventing scratches. The clamping tightness can be manually adjusted, allowing the device to stably and effectively clamp the PCB board. The adjustable clamping tightness accommodates PCB boards of different sizes, avoiding board deformation caused by rigid clamping in traditional mechanisms.

[0015] 2. This utility model incorporates a positioning component, which includes a front support frame, a rear support frame, a support limiting plate, a servo motor, a threaded support screw, a movable frame, a stepper motor, a threaded screw, and a movable seat. In use, the servo motor is activated, causing the threaded support screw to rotate. The threaded support screw then moves the movable frame back and forth along the upper surface of the support limiting plate, facilitating the positioning of the pressing mechanism. The stepper motor is activated, causing the threaded screw to rotate. The threaded screw then moves the movable seat left and right along the inner surface of the movable frame, again facilitating the positioning of the pressing mechanism. This allows the device to automatically position the PCB board for pressing, thereby improving overall assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a workpiece positioning and clamping mechanism and a PCB board assembly equipment containing the mechanism according to the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of a workpiece positioning and clamping mechanism and a clamping component of a PCB board assembly equipment containing the mechanism, according to the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of a workpiece positioning and clamping mechanism and a positioning component of a PCB board assembly equipment containing the mechanism, according to the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of a workpiece positioning and clamping mechanism and a PCB board assembly equipment containing the mechanism, according to the present invention.

[0020] In the diagram: 1. Fixed base plate; 2. Fixed plate; 3. Clamping assembly; 301. Fixed frame; 302. Two-way threaded support rod; 303. Anti-slip knob; 304. Movable block; 305. Limiting clamping frame; 306. Silicone buffer pad; 4. Storage base; 5. Universal wheel; 6. Support base plate; 7. Positioning assembly; 701. Front support frame; 702. Rear support frame; 703. Support limiting plate; 704. Servo motor; 705. Threaded support screw; 706. Movable frame; 707. Stepper motor; 708. Threaded screw; 709. Movable seat; 8. Limiting frame; 9. Hydraulic push rod; 10. Connecting plate; 11. Pressing mechanism. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 4As shown, a workpiece positioning and clamping mechanism includes a fixed base plate 1 and a clamping assembly 3. The fixed base plate 1 is an integral structure, and fixed plates 2 are installed on both sides of the rear end of the upper surface of the fixed base plate 1. The clamping assembly 3 is disposed on the surface of the fixed plates 2, and the clamping assembly 3 includes a fixed frame 301, a bidirectional threaded support rod 302, an anti-slip knob 303, a movable block 304, a limiting clamping frame 305, and a silicone buffer pad 306. The fixed frame 301 is disposed on the rear end of the inner side of the fixed plate 2, and the two side surfaces of the fixed frame 301 are tightly connected to the surface of the rear end of the inner side of the fixed plate 2. The rear end of plate 2 is rotatably connected to a bidirectional threaded support rod 302, and an anti-slip knob 303 is installed on the right side of the bidirectional threaded support rod 302. The anti-slip knob 303 and the bidirectional threaded support rod 302 are an integrated structure that is tightly connected. The two ends of the surface of the bidirectional threaded support rod 302 are threadedly connected to movable blocks 304, and the outer surface of the movable blocks 304 is slidably connected to the inner surface of the fixed frame 301. A limit clamping frame 305 is installed on the front side of the movable blocks 304, and two sets of limit clamping frames 305 are symmetrically arranged. A silicone buffer pad 306 is connected to the inner surface of the limit clamping frame 305.

[0023] The specific operation is as follows: When using, place the PCB board between the two sets of limiting clamping frames 305, rotate the anti-slip knob 303, so that the anti-slip knob 303 drives the bidirectional threaded support rod 302 to rotate along the surface of the fixed plate 2. The bidirectional threaded support rod 302 drives the two sets of movable blocks 304 to move towards each other along the inner surface of the fixed frame 301, further driving the two sets of limiting clamping frames 305 to move downward until the two sets of limiting clamping frames 305 clamp and limit the PCB board. The silicone buffer pad 306 can protect the position where the PCB board contacts the limiting clamping frame 305 to prevent the PCB board from being scratched. The tightness of the clamping of the PCB board can be manually adjusted.

[0024] like Figure 1 , Figure 3 and Figure 4As shown, a PCB assembly device includes a storage base 4 and a positioning component 7. A caster wheel 5 is installed on the bottom of the lower surface of the storage base 4, and a support base plate 6 is installed on the upper surface of the storage base 4. The positioning component 7 is disposed on the upper surface of the support base plate 6 and includes a front support frame 701, a rear support frame 702, a support limiting plate 703, a servo motor 704, a threaded support screw 705, a movable frame 706, a stepper motor 707, a threaded screw 708, and a movable seat 709. The front support frame 701 is disposed at the front end of the upper surface of the support base plate 6, and the rear support frame 702 is installed at the rear end of the upper surface of the support base plate 6. The support limiting plate 703 is disposed on both sides of the upper front surface of the rear support frame 702. A servo motor 704 is mounted on the upper rear surface of 02, and the output end of the servo motor 704 is connected to a threaded support screw 705 via a coupling. A movable frame 706 is threadedly connected to the surface of the threaded support screw 705, and the lower surfaces of both ends of the movable frame 706 are slidably connected to the upper surface of the support limiting plate 703. A stepper motor 707 is mounted inside the right end of the movable frame 706, and the output end of the stepper motor 707 is connected to a threaded screw 708 via a coupling. A movable seat 709 is threadedly connected to the surface of the threaded screw 708, and a limiting frame 8 is mounted at the bottom of the movable seat 709. A hydraulic push rod 9 is set inside the limiting frame 8, and a connecting plate 10 is mounted at the bottom of the hydraulic push rod 9. A pressing mechanism 11 is set on the front side of the connecting plate 10.

[0025] The specific operation is as follows: When in use, start the servo motor 704, which drives the threaded support screw 705 to rotate. The threaded support screw 705 drives the movable frame 706 to move back and forth along the upper surface of the support limit plate 703, so as to position the front and back of the pressing mechanism 11. Start the stepper motor 707, which drives the threaded screw 708 to rotate. The threaded screw 708 drives the movable seat 709 to move left and right along the inner surface of the movable frame 706, so as to position the front and back of the pressing mechanism 11. Start the hydraulic push rod 9, which drives the pressing mechanism 11 to press down through the connecting plate 10, so as to press the components on the PCB board surface.

[0026] A PCB assembly device is provided, which is equipped with the workpiece positioning and clamping mechanism described above, so that the PCB assembly device can achieve stable clamping and limiting of the PCB board, so as to facilitate the assembly of the PCB board and improve the overall work efficiency.

[0027] In summary, as Figures 1 to 4As shown, the workpiece positioning and clamping mechanism and the PCB assembly equipment containing the mechanism are used as follows: First, the PCB board is placed between two sets of limiting clamping frames 305. The anti-slip knob 303 is rotated, causing the anti-slip knob 303 to drive the bidirectional threaded support rod 302 to rotate along the surface of the fixed plate 2. The bidirectional threaded support rod 302 drives two sets of movable blocks 304 to move towards each other along the inner surface of the fixed frame 301, further driving the two sets of limiting clamping frames 305 to move downwards until the two sets of limiting clamping frames 305 clamp and limit the PCB board. The silicone buffer pad 306 protects the contact area between the PCB board and the limiting clamping frame 305, preventing the PCB board from being scratched. The buffer pad can be manually adjusted to position the PCB board. The tightness of the B-board clamping is then checked. Subsequently, the servo motor 704 is started, causing the servo motor 704 to drive the threaded support screw 705 to rotate. The threaded support screw 705 drives the movable frame 706 to move back and forth along the upper surface of the support limit plate 703, so as to position the front and back of the pressing mechanism 11. The stepper motor 707 is started, causing the stepper motor 707 to drive the threaded screw 708 to rotate. The threaded screw 708 drives the movable seat 709 to move left and right along the inner surface of the movable frame 706, so as to position the front and back of the pressing mechanism 11. The hydraulic push rod 9 is started, causing the hydraulic push rod 9 to drive the pressing mechanism 11 to press down through the connecting plate 10, thereby realizing the pressing of the components on the PCB board surface.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A workpiece positioning and clamping mechanism comprising a fixed base plate (1) and a clamping assembly (3), characterised in that: The fixed base plate (1) is an integrated structure, and fixed plates (2) are installed on both sides of the rear end of the upper surface of the fixed base plate (1). The clamping assembly (3) is set on the surface of the fixed plate (2), and the clamping assembly (3) includes a fixed frame (301), a bidirectional threaded support rod (302), an anti-slip knob (303), a movable block (304), a limiting clamping frame (305), and a silicone buffer pad (306). The fixed frame (301) is set on the rear end of the inner side of the fixed plate (2), and the two sides of the fixed frame (301) are tightly connected to the surface of the rear end of the inner side of the fixed plate (2). The rear end of the fixed plate (2) is rotatably connected to the bidirectional threaded support rod (302), and an anti-slip knob (303) is installed on the right side of the bidirectional threaded support rod (302). The anti-slip knob (303) and the bidirectional threaded support rod (302) are an integrated structure that is tightly connected.

2. A workpiece positioning and clamping mechanism according to claim 1, wherein, The two-way threaded support rod (302) has movable blocks (304) threadedly connected at both ends of its surface, and the outer surface of the movable blocks (304) is slidably connected to the inner surface of the fixed frame (301).

3. A workpiece positioning and clamping mechanism according to claim 2, wherein, The movable block (304) is equipped with a limiting clamping frame (305) on the front side, and two sets of limiting clamping frames (305) are symmetrically arranged. The inner surface of the limiting clamping frame (305) is connected to a silicone buffer pad (306).

4. A PCB board assembly apparatus, characterized by, The PCB assembly equipment is equipped with a workpiece positioning and clamping mechanism as described in any one of claims 1-3, including a storage base (4) and a positioning component (7). The storage base (4) is equipped with a caster wheel (5) at the bottom of its lower surface, and a support base plate (6) is installed on the upper surface of the storage base (4). The positioning component (7) is disposed on the upper surface of the support base plate (6), and the positioning component (7) includes a front support frame (701), a rear support frame (702), a support limiting plate (703), a servo motor (704), a threaded support screw (705), a movable frame (706), a stepper motor (707), a threaded screw (708), and a movable seat (709).

5. The PCB board assembly apparatus of claim 4, wherein, The front support frame (701) is located at the front end of the upper surface of the support base plate (6), and the rear support frame (702) is installed at the rear end of the upper surface of the support base plate (6). The upper front surface of the rear support frame (702) is provided with support limiting plates (703).

6. The PCB board assembly apparatus of claim 4, wherein, A servo motor (704) is installed on the upper rear surface of the rear support frame (702), and the output end of the servo motor (704) is connected to a threaded support screw (705) through a coupling. A movable frame (706) is threadedly connected to the surface of the threaded support screw (705), and the lower surfaces of both ends of the movable frame (706) are slidably connected to the upper surface of the support limiting plate (703).

7. The PCB board assembly apparatus of claim 4, wherein, A stepper motor (707) is installed inside the right end of the movable frame (706), and the output end of the stepper motor (707) is connected to a threaded screw (708) through a coupling. A movable seat (709) is threadedly connected to the surface of the threaded screw (708).

8. The PCB board assembly apparatus of claim 4, wherein, The active seat (709) is provided with a limiting frame (8) at the bottom, and a hydraulic push rod (9) is arranged in the limiting frame (8), the bottom of the hydraulic push rod (9) is provided with a connecting plate (10), and the front side of the connecting plate (10) is provided with a press-fitting mechanism (11).

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