A substrate conveying fixture

Abstract

This utility model discloses a substrate conveying clamp, comprising an upper clamp, a lower clamp, a spring plate, an electromagnet, a ferromagnetic component, and a reset mechanism. The lower ends of the upper and lower clamps are arranged vertically opposite each other, and the upper end of the upper clamp is connected to the upper end of the lower clamp via the spring plate. The electromagnet is fixed on the lower clamp, and the ferromagnetic component is positioned directly above the electromagnet and fixed on the upper clamp. The reset mechanism is located between the upper and lower clamps. This utility model uses an electromagnet to drive the clamp to close and hold the chip substrate. The clamping force can be controlled simply by adjusting the driving current of the electromagnet. Compared to existing pneumatic clamps that require additional air pressure regulation equipment, the cost is greatly reduced. Furthermore, since the electromagnet only needs power, compared to the complex air circuit design of pneumatic clamps, the electromagnet only requires one power supply line, making the design simple and cost-effective.

Description

Technical Field

[0001] This utility model relates to a clamp, and more particularly to a substrate conveying clamp, belonging to the field of clamping and tooling technology. Background Technology

[0002] In chip packaging processes, the transport device requires a fixture to hold the chip substrate on the transport device. A fixture drive mechanism then moves the fixture and the held chip substrate along the transport device's track from one station to the next, achieving continuous automated processing. Traditional substrate transport fixtures typically use pneumatic clamps. To achieve precise clamping force control, additional pneumatic control devices are required, increasing production line costs. Furthermore, the transport fixture needs to move back and forth on the transport device; therefore, the pneumatic path design must consider not only the stability of the pneumatic path itself but also interference issues within the moving pneumatic path. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a substrate conveying fixture that is driven by an electromagnet, has a simple structure and does not require the design of a complex air circuit.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A substrate conveying fixture includes an upper jaw, a lower jaw, a spring plate, an electromagnet, a ferromagnetic component, and a reset mechanism. The lower ends of the upper jaw and the lower jaw are arranged vertically opposite each other. The upper end of the upper jaw is connected to the upper end of the lower jaw via the spring plate. The electromagnet is fixed on the lower jaw. The ferromagnetic component is arranged directly above the electromagnet and fixed on the upper jaw. The reset mechanism is arranged between the upper jaw and the lower jaw.

[0006] Furthermore, the lower gripper has a Z-shaped structure, and the lower end of the lower gripper is provided with vertically upward-curving gripper teeth.

[0007] Furthermore, the upper gripper has an overall L-shaped structure, with the lower end of the upper gripper forming upper gripper teeth vertically downwards. The upper gripper teeth and the lower gripper teeth are located in the same vertical plane and are arranged vertically.

[0008] Furthermore, the upper gripper includes an upper gripper body support and a first claw tooth and a second claw tooth, the first claw tooth and the second claw tooth being arranged side by side and detachably fixed to the upper gripper body support respectively.

[0009] Furthermore, one end of the spring sheet is fixedly connected to the upper end of the upper jaw, and the other end of the spring sheet is fixedly connected to the upper end of the lower jaw, with a gap between the upper jaw and the lower jaw.

[0010] Furthermore, an upper limit stop is provided on the upper side of the spring sheet. The upper limit stop is located above the spring sheet and its edge extends downward and is fixed on the lower jaw. The upper limit stop limits the upward displacement of the spring sheet.

[0011] Furthermore, the middle part of the Z-shaped structure of the lower jaw has a blind hole in the vertical direction that matches the electromagnet. The electromagnet is embedded in the blind hole of the lower jaw. The shape of the ferromagnet matches the electromagnet. The ferromagnet is fixed on the lower side of the horizontal part of the L-shaped structure of the upper jaw and is located directly above the electromagnet.

[0012] Furthermore, the reset mechanism includes a first reset spring and a second reset spring. A spring hole is opened on both sides of the upper end face of the middle part of the Z-shaped structure of the lower jaw. The lower ends of the first reset spring and the second reset spring are fixed in the two spring holes respectively. The upper ends of the first reset spring and the second reset spring abut against the lower side of the horizontal part of the L-shaped structure of the upper jaw and provide an upward elastic force to the upper jaw.

[0013] Compared with the prior art, this utility model has the following advantages and effects: This utility model discloses a substrate conveying clamp, which clamps the chip substrate by driving the clamp to close through an electromagnet. The clamping force can be controlled by adjusting the driving current of the electromagnet. Compared with the existing pneumatic clamp, which requires additional air pressure regulation equipment, the cost is greatly reduced. In addition, since the electromagnet only needs to be powered, compared with the complex air circuit design of the pneumatic clamp, the electromagnet only needs one power supply line, which is simple in design and low in cost. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a substrate conveying fixture according to the present invention.

[0015] Figure 2 This is a schematic diagram of the lower gripper of this utility model.

[0016] Figure 3 This is a schematic diagram of the upper gripper of this utility model. Detailed Implementation

[0017] To elaborate on the technical solutions adopted by this utility model to achieve the intended technical objectives, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Furthermore, the technical means or technical features in the embodiments of this utility model can be replaced without creative effort. The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 ,2 As shown in Figures 1 and 3, a substrate conveying fixture of this utility model includes an upper jaw 1, a lower jaw 2, a spring plate 3, an electromagnet 4, a ferromagnetic component 5, and a reset mechanism. The lower ends of the upper jaw 1 and the lower ends of the lower jaw 2 are arranged vertically opposite each other. The upper end of the upper jaw 1 is connected to the upper end of the lower jaw 2 through the spring plate 3. The electromagnet 4 is fixed on the lower jaw 2. The ferromagnetic component 5 is arranged directly above the electromagnet 4 and fixed on the upper jaw 1. The reset mechanism is arranged between the upper jaw 1 and the lower jaw 2.

[0019] like Figure 2 As shown, the lower jaw 2 has a Z-shaped structure, and the lower end of the lower jaw 2 is provided with vertically upward curled lower jaw teeth 6.

[0020] like Figure 3 As shown, the upper jaw 1 has an overall L-shaped structure. The lower end of the upper jaw 1 forms upper jaw teeth vertically downwards. The upper jaw teeth and the lower jaw teeth 6 are located in the same vertical plane and are arranged vertically.

[0021] The upper gripper 1 includes an upper gripper main support 7 and a first gripper tooth 8 and a second gripper tooth 9. The first gripper tooth 8 and the second gripper tooth 9 are arranged side by side and are detachably fixed to the upper gripper main support 7. Through the detachable design of the two sections of gripper teeth, the corresponding number and position of gripper teeth can be installed according to the actual workstation requirements, making the gripper structure more versatile.

[0022] One end of the spring plate 3 is fixedly connected to the upper end of the upper jaw 1, and the other end of the spring plate 3 is fixedly connected to the upper end of the lower jaw 2, with a gap between the upper jaw 1 and the lower jaw 2.

[0023] An upper limit stop 10 is provided on the upper side of the spring plate 3. The upper limit stop 10 is located above the spring plate 3 and its edge extends downward and is fixed on the lower jaw 2. The upper limit stop 10 limits the upward displacement of the spring plate 3.

[0024] The lower jaw 2 has a blind hole in the middle of the Z-shaped structure that matches the electromagnet 4 in the vertical direction. The electromagnet 4 is embedded in the blind hole of the lower jaw 2. The shape of the ferromagnet 5 matches the electromagnet 4. The ferromagnet 5 is fixed on the lower side of the horizontal part of the L-shaped structure of the upper jaw 1 and is located directly above the electromagnet 4.

[0025] The reset mechanism includes a first reset spring 11 and a second reset spring 12. A spring hole is opened on each side of the upper surface of the middle portion of the Z-shaped structure of the lower gripper 2. The lower ends of the first reset spring 11 and the second reset spring 12 are fixed in the two spring holes respectively. The upper ends of the first reset spring 11 and the second reset spring 12 abut against the lower side of the horizontal portion of the L-shaped structure of the upper gripper 1, providing an upward elastic force to the upper gripper 1. In this embodiment, a spring groove is provided on the lower side of the horizontal portion of the L-shaped structure of the upper gripper 1, corresponding to the upper ends of the first reset spring 11 and the second reset spring 12. The upper ends of the first reset spring 11 and the second reset spring 12 are engaged in the spring groove, limiting the position of the first reset spring 11 and the second reset spring 12.

[0026] The working principle of this substrate conveying fixture is as follows: The input current of the electromagnet is adjusted according to the required clamping force of the substrate. When the electromagnet 4 is energized, it generates an attractive force, which in turn attracts the ferromagnetic component 5 downwards. The ferromagnetic component 5 is attracted downwards to the upper end of the electromagnet 4. Since the ferromagnetic component 5 is fixed on the upper jaw 1, the upper jaw 1 is driven to move downwards, causing the first jaw tooth 8 and the second jaw tooth 9 to clamp and close with the lower jaw tooth 6, thus completing the clamping action on the chip substrate. During the downward movement of the upper jaw 1, the spring plate 3 bends downwards, and simultaneously the first return spring 11 and the second return spring 12 are compressed and stored. When the electromagnet 4 is de-energized, the attractive force of the ferromagnetic component 5 disappears, and the upper jaw 1 returns to its original position under the combined action of the first return spring 11 and the second return spring 12, until the upper side of the spring plate 3 abuts against the upper limit member 10 to complete the limit, thus completing one clamping and releasing action of the substrate conveying fixture.

[0027] This utility model discloses a substrate conveying fixture, which clamps the chip substrate by driving the fixture to close using an electromagnet. The clamping force can be controlled simply by adjusting the driving current of the electromagnet. Compared with the existing pneumatic fixtures that require additional air pressure regulation equipment, the cost is greatly reduced. In addition, since the electromagnet only needs to be powered, compared with the complex air circuit design of the pneumatic fixture, the electromagnet only needs one power supply line, making the design simple and the cost low.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A substrate conveying fixture, characterized in that: It includes an upper jaw, a lower jaw, a spring plate, an electromagnet, a ferromagnetic component, and a reset mechanism. The lower ends of the upper jaw and the lower jaw are arranged vertically opposite each other. The upper end of the upper jaw is connected to the upper end of the lower jaw through the spring plate. The electromagnet is fixed on the lower jaw. The ferromagnetic component is arranged directly above the electromagnet and fixed on the upper jaw. The reset mechanism is arranged between the upper jaw and the lower jaw.

2. The substrate conveying fixture according to claim 1, characterized in that: The lower gripper has a Z-shaped structure, and the lower end of the lower gripper has vertically upward-curving gripper teeth.

3. A substrate conveying fixture according to claim 2, characterized in that: The upper gripper has an overall L-shaped structure. The lower end of the upper gripper forms upper gripper teeth vertically downwards. The upper gripper teeth and the lower gripper teeth are located in the same vertical plane and are arranged vertically.

4. A substrate conveying fixture according to claim 3, characterized in that: The upper gripper includes an upper gripper main support and a first claw tooth and a second claw tooth. The first claw tooth and the second claw tooth are arranged side by side and are detachably fixed to the upper gripper main support.

5. A substrate conveying fixture according to claim 3, characterized in that: One end of the spring sheet is fixedly connected to the upper end of the upper jaw, and the other end of the spring sheet is fixedly connected to the upper end of the lower jaw, with a gap between the upper jaw and the lower jaw.

6. A substrate conveying fixture according to claim 5, characterized in that: An upper limit stop is provided on the upper side of the spring sheet. The upper limit stop is located above the spring sheet and its edge extends downward and is fixed on the lower jaw. The upper limit stop limits the upward displacement of the spring sheet.

7. A substrate conveying fixture according to claim 3, characterized in that: The lower jaw has a blind hole in the middle of the Z-shaped structure that matches the electromagnet in the vertical direction. The electromagnet is embedded in the blind hole of the lower jaw. The shape of the ferromagnet matches the electromagnet. The ferromagnet is fixed on the lower side of the horizontal part of the L-shaped structure of the upper jaw and is located directly above the electromagnet.

8. A substrate conveying fixture according to claim 3, characterized in that: The reset mechanism includes a first reset spring and a second reset spring. A spring hole is opened on both sides of the upper end face of the middle part of the Z-shaped structure of the lower jaw. The lower ends of the first reset spring and the second reset spring are fixed in the two spring holes respectively. The upper ends of the first reset spring and the second reset spring abut against the lower side of the horizontal part of the L-shaped structure of the upper jaw and provide an upward elastic force to the upper jaw.

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