Mobile phone middle frame MIM piece screw locking positioning jig

Abstract

The utility model discloses a mobile phone middle frame MIM piece screw locking positioning jig which comprises a base and a jig body, a middle frame positioning bottom plate is installed on the jig body and used for positioning and placing a mobile phone middle frame, and an X-direction air cylinder and a Y-direction air cylinder are correspondingly arranged at the positions, corresponding to the installation position of an MIM piece on the mobile phone middle frame, of the jig body. A Z-direction air cylinder connecting block is fixedly installed at the output end of the Y-direction air cylinder, a Y-direction sliding rail is correspondingly arranged on the jig body, the Z-direction air cylinder connecting block slides along the Y-direction sliding rail, a Z-direction air cylinder is fixedly installed on the Z-direction air cylinder connecting block, a Z-direction pressing block is fixedly connected to the tail end of a Z-direction air cylinder output shaft of the Z-direction air cylinder, and the Z-direction pressing block is used for pressing the front face of the MIM piece. An X-direction pressing block is fixedly installed at the output end of the X-direction air cylinder and used for pressing the side face of the MIM piece. The X-direction and Z-direction simultaneous compression positioning is realized by adopting a three-cylinder linkage mode, and meanwhile, the Z-direction avoids a product structure when the cylinders exit in the X-direction and the Y-direction, so that the jig is effectively prevented from colliding with a product.

Description

A screw positioning fixture for locking MIM components in a mobile phone frame Technical Field

[0001] This utility model relates to the field of mobile phone mid-frame MIM component installation technology, and in particular to a screw positioning fixture for mobile phone mid-frame MIM components. Background Technology

[0002] As shown in Figures 1 and 2, when installing the MIM component 2 inside the existing mobile phone frame 1, the MIM component needs to be fixed to the inner inclined surface of the mobile phone frame structure by screwing in the screws 3. However, due to the special location and space limitations, it is difficult to achieve simultaneous multi-directional positioning of the MIM component during the screwing process using ordinary positioning fixtures, resulting in dimensional deviations in the position of the MIM component after screwing. Therefore, it is necessary to develop a positioning fixture suitable for screwing in the MIM component of the mobile phone frame. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model designs a screw positioning fixture for locking the MIM part of the mobile phone mid-frame.

[0004] The present invention adopts the following technical solution:

[0005] A positioning fixture for locking screws on a mobile phone mid-frame MIM component includes a base and a fixture body. A mid-frame positioning base plate is mounted on the fixture body for positioning and placing the mobile phone mid-frame. An X-axis cylinder and a Y-axis cylinder are respectively arranged on the fixture body at the installation positions of the MIM component on the mobile phone mid-frame. A Z-axis cylinder connecting block is fixedly mounted on the output end of the Y-axis cylinder. A Y-axis slide rail is correspondingly provided on the fixture body. The Z-axis cylinder connecting block slides along the Y-axis slide rail. A Z-axis cylinder is fixedly mounted on the Z-axis cylinder connecting block. A Z-axis pressure block is fixedly connected to the end of the Z-axis cylinder output shaft. The Z-axis pressure block is used to press the front side of the MIM component. An X-axis pressure block is fixedly mounted on the output end of the X-axis cylinder. The X-axis pressure block is used to press the side side of the MIM component.

[0006] Preferably, the fixture body is tilted and fixed on the base at an angle of 58 degrees. This ensures that the screw holes face vertically upwards during MIM component installation, facilitating screw assembly and tightening.

[0007] Preferably, the Y-axis cylinder and Z-axis cylinder are located on the back of the fixture body, and the output shaft of the Y-axis cylinder passes through the Z-axis cylinder output shaft moving groove provided on the fixture body to connect to the Z-axis pressure block installed on the front of the fixture body. This allows for a reasonable spatial layout of the various components on the fixture body.

[0008] Preferably, a U-shaped limiting block is provided on the main body of the fixture corresponding to the Z-axis pressing block. The U-shaped limiting block is used to restrict the movement of the Z-axis pressing block and prevent the Z-axis pressing block from rotating.

[0009] Preferably, the fixture body is provided with a guide groove corresponding to the X-axis pressure block, and the X-axis pressure block cooperates with the guide groove to move along the guide groove, thereby achieving the positional accuracy of the X-axis pressure block.

[0010] Preferably, the fixture body is provided with a Y-direction limiting block corresponding to the Z-direction cylinder connecting block.

[0011] Preferably, the mid-frame positioning base plate is provided with a mid-frame cover plate, which facilitates the fixing of the mobile phone mid-frame after positioning and placement.

[0012] Preferably, the fixture body is provided with external guide blocks around the perimeter of the mid-frame positioning base plate. This facilitates the positioning and placement of the phone's mid-frame onto the mid-frame positioning base plate.

[0013] The beneficial effects of this utility model are as follows: This utility model designs a screw positioning fixture for MIM parts of a mobile phone frame. Under the constraints of position and space, it uses a three-cylinder linkage method to achieve simultaneous clamping and positioning in the X and Z directions. At the same time, when the X and Y directions of the cylinder retract, the Z direction avoids the product structure, effectively preventing the fixture from colliding with the product. The Z direction cylinder is installed on two parallel Y direction slide rails. The movement of the Y direction cylinder achieves smooth and precise movement of the entire cylinder. The Z direction cylinder output shaft moving groove ensures the position of the Z direction pressing block. The X direction pressing block achieves the position of the X direction pressing block through the guide groove. The U-shaped limit block design prevents the Z direction pressing block from rotating. Attached Figure Description

[0014] Figure 1 is a schematic diagram of a structure in which MIM components are fixed to the middle frame of a mobile phone by means of screws;

[0015] Figure 2 is a structural diagram of a mobile phone mid-frame MIM component;

[0016] Figure 3 is a structural schematic diagram of this utility model;

[0017] Figure 4 is an enlarged schematic diagram of the mounting position of the MIM component in Figure 3;

[0018] Figure 5 is a schematic diagram of one structure in Figure 2 with the base removed;

[0019] Figure 6 is a front view of Figure 5;

[0020] Figure 7 is a rear view of Figure 6;

[0021] Figure 8 is a three-dimensional view of Figure 7;

[0022] In the diagram: 1. Mobile phone frame, 2. MIM component, 3. Screw, 4. Fixture body, 5. Base, 6. Frame positioning base plate, 7. Frame cover plate, 8. Outer guide block, 9. X-axis cylinder, 10. X-axis pressure block, 11. Z-axis pressure block, 12. Z-axis cylinder output shaft, 13. U-shaped limit block, 14. Y-axis cylinder, 15. Y-axis limit block, 16. Z-axis cylinder, 17. Z-axis cylinder connecting block, 18. Y-axis slide rail, 19. Z-axis cylinder output shaft moving groove, 20. Guide groove. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0024] Example: As shown in Figures 3-8, a screw positioning fixture for MIM components in a mobile phone frame includes a base 5 and a fixture body 4. A mid-frame positioning base plate 6 is installed on the fixture body for positioning and placing the mobile phone frame. An X-axis cylinder 9 and a Y-axis cylinder 14 are respectively provided on the fixture body at the installation positions of the MIM components on the mobile phone frame. A Z-axis cylinder connecting block 17 is fixedly installed at the output end of the Y-axis cylinder. A Y-axis slide rail 18 is provided on the fixture body. The Z-axis cylinder connecting block slides along the Y-axis slide rail. A Z-axis cylinder 16 is fixedly installed on the Z-axis cylinder connecting block. A Z-axis pressure block 11 is fixedly connected to the end of the Z-axis cylinder output shaft 12 of the Z-axis cylinder. The Z-axis pressure block is used to press the front of the MIM component. An X-axis pressure block 10 is fixedly installed at the output end of the X-axis cylinder. The X-axis pressure block is used to press the side of the MIM component.

[0025] The main body of the fixture is tilted and fixed on the base at an angle of 58 degrees. This ensures that the screw holes are vertically upward when installing MIM parts, facilitating screw assembly and tightening.

[0026] The Y-axis cylinder and Z-axis cylinder are located on the back of the fixture body. The output shaft of the Y-axis cylinder passes through the Z-axis cylinder output shaft moving groove 19 provided on the fixture body and connects to the Z-axis pressure block installed on the front of the fixture body. This allows for a reasonable spatial layout of the various parts on the fixture body.

[0027] A U-shaped limiting block 13 is provided on the main body of the fixture corresponding to the Z-axis pressure block. The U-shaped limiting block is used to restrict the movement of the Z-axis pressure block and prevent the Z-axis pressure block from rotating.

[0028] The fixture body has a guide groove 20 corresponding to the X-axis pressure block. The X-axis pressure block moves along the guide groove in cooperation with it, thus achieving the positional accuracy of the X-axis pressure block.

[0029] A Y-direction limiting block 15 is provided on the main body of the fixture corresponding to the Z-direction cylinder connecting block.

[0030] A mid-frame cover plate 7 is provided on the mid-frame positioning base plate. This facilitates the positioning and fixing of the phone's mid-frame.

[0031] The main body of the fixture has external guide blocks 8 around the perimeter of the mid-frame positioning base plate. This facilitates the placement of the mobile phone mid-frame onto the mid-frame positioning base plate.

[0032] When this screw-locking positioning fixture for the MIM component of the mobile phone frame is in use, during the cylinder return action, the X-axis cylinder drives the X-axis pressure block to retract along the guide groove, while the Z-axis cylinder lifts the Z-axis pressure block to avoid the side wall of the mid-frame, and the Y-axis cylinder pushes the Z-axis cylinder outwards towards the product. These cylinder actions are controlled sequentially by a PLC to prevent collisions with the side wall of the mobile phone frame.

[0033] During the cylinder pressing action, the X-axis cylinder drives the X-axis pressure block to push it along the guide groove to the side of the MIM part. At the same time, the Y-axis cylinder, along with the Z-axis cylinder and the Z-axis pressure block, slides along the Y-axis slide rail towards the middle frame until it is blocked by the Y-axis limit block. Then, the Z-axis cylinder drives the Z-axis pressure block to vertically press it against the front of the MIM part. Through the bidirectional pressing of the X-axis and Z-axis cylinders, the problems of MIM part floating and misalignment are completely solved.

[0034] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A screw positioning fixture for MIM (Metal Injection Molding) components in a mobile phone frame, comprising a base and a fixture body, characterized in that, The fixture body is equipped with a mid-frame positioning base plate for positioning and placing the mobile phone mid-frame. X-axis cylinders and Y-axis cylinders are respectively installed on the fixture body at the installation positions of the MIM components on the mobile phone mid-frame. A Z-axis cylinder connecting block is fixedly installed at the output end of the Y-axis cylinder. A Y-axis slide rail is correspondingly provided on the fixture body, and the Z-axis cylinder connecting block slides along the Y-axis slide rail. A Z-axis cylinder is fixedly installed on the Z-axis cylinder connecting block. A Z-axis pressure block is fixedly connected to the end of the Z-axis cylinder output shaft. The Z-axis pressure block is used to press the front of the MIM component. An X-axis pressure block is fixedly installed at the output end of the X-axis cylinder, and the X-axis pressure block is used to press the side of the MIM component.

2. The screw positioning fixture for MIM components in a mobile phone frame according to claim 1, characterized in that, The main body of the fixture is tilted and fixed on the base at an angle of 58 degrees.

3. The screw positioning fixture for MIM components in a mobile phone frame according to claim 1, characterized in that, The Y-axis cylinder and Z-axis cylinder are located on the back of the fixture body. The output shaft of the Y-axis cylinder passes through the Z-axis cylinder output shaft moving groove provided on the fixture body and connects to the Z-axis pressure block installed on the front of the fixture body.

4. A screw positioning fixture for locking MIM components in a mobile phone frame according to claim 1, characterized in that, The fixture body is provided with a U-shaped limiting block corresponding to the Z-direction pressure block.

5. A screw positioning fixture for locking MIM components in a mobile phone frame according to claim 1, characterized in that, The fixture body is provided with a guide groove corresponding to the X-axis pressure block, and the X-axis pressure block moves along the guide groove in cooperation with the guide groove.

6. A screw positioning fixture for locking MIM components in a mobile phone frame according to claim 1, characterized in that, A Y-direction limiting block is provided on the main body of the fixture corresponding to the Z-direction cylinder connecting block.

7. A screw positioning fixture for locking MIM components in a mobile phone frame according to claim 1, characterized in that, A middle frame cover plate is provided on the middle frame positioning base plate.

8. A screw positioning fixture for locking MIM components in a mobile phone frame according to claim 1, characterized in that, The fixture body is provided with an outer guide block around the perimeter of the positioning base plate corresponding to the middle frame.

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