Precise clamping jig for mobile phone middle frame machining

Abstract

The utility model discloses a precise clamping jig for machining a middle frame of a mobile phone. The precise clamping jig comprises a jig platform, a plurality of clamping jaw mechanisms, a stretching driving mechanism and a jacking driving mechanism, wherein an annular positioning groove is formed in the top of the jig platform; the clamping jaw mechanisms are arranged around the annular positioning groove at intervals; the stretching driving mechanism comprises a stretching driving frame and at least one stretching driving piece which is in driving connection with the stretching driving frame; the clamping jaw mechanism comprises a connecting rod, a clamping jaw arranged at the top of the connecting rod, and a hinge seat hinged to the bottom of the connecting rod; the contact face between the stretching driving frame and the connecting rod is of a wedge-shaped structure. The stretching driving piece is used for driving the stretching driving frame to enable the clamping jaw to stretch out through the wedge-shaped structure. By arranging the clamping jaw mechanism, the stretching driving mechanism and the jacking driving mechanism, synchronous linkage of multiple clamping jaws is achieved, and the clamping jaws can move in multiple directions, so that automatic clamping and loosening of the mobile phone middle frame are achieved, positioning of the machined mobile phone middle frame is more accurate, taking and placing are smooth, the clamping force is guaranteed, and the machining efficiency is improved. The machining efficiency and the machining precision of the mobile phone middle frame are improved.

Description

Technical Field

[0001] The utility model relates to the field of automation technology, in particular to a precision clamp for processing a mobile phone middle frame. Background Art

[0002] The mobile phone midframe is a crucial component that supports the entire phone, and its machining accuracy directly impacts the entire phone's production and assembly. Conventional mobile phone midframe machining typically involves manual clamping and securing using screws. This often results in poor positioning accuracy, poor product consistency, and low production efficiency, often failing to meet mass production requirements due to factors such as improper clamping and removal and displacement of the clamping and positioning components. Utility Model Content

[0003] The purpose of the utility model is to provide a precision clamp for processing a mobile phone middle frame. By setting a clamping claw mechanism, an extension drive mechanism, and a lifting drive mechanism, multiple clamping claws are synchronously linked, and the clamping claws can move in multiple directions, thereby realizing automatic clamping and loosening of the mobile phone middle frame, making the positioning of the mobile phone middle frame more accurate, taking and placing smoothly, and the clamping force guaranteed, thereby improving the processing efficiency and processing accuracy of the mobile phone middle frame.

[0004] In order to achieve the above objectives, the following technical solutions are adopted:

[0005] A precision fixture for processing a mobile phone middle frame comprises a fixture platform with an annular positioning groove on the top, a plurality of clamping mechanisms arranged at intervals around the annular positioning groove, an extension drive mechanism for driving the plurality of clamping mechanisms to extend, and a lifting drive mechanism for lifting the plurality of clamping mechanisms; the extension drive mechanism comprises an extension drive frame, and at least one extension drive member drivingly connected to the extension drive frame; the clamping mechanism comprises a connecting rod, a clamping jaw provided at the top of the connecting rod, and an articulated seat hinged to the bottom of the connecting rod; the contact surface between the extension drive frame and the connecting rod is configured as a wedge-shaped structure; the extension drive member is used to drive the extension drive frame through the wedge-shaped structure to extend the clamping jaw.

[0006] Preferably, the jacking drive mechanism includes a jacking block, a plurality of jacking rods arranged above the jacking block, and at least one jacking drive component connected to the jacking block; the top of each jacking rod is connected to the bottom of an articulated seat; the jacking drive component is used to drive the jacking block to drive the plurality of jacking rods to lift the corresponding clamps.

[0007] Preferably, a first guide block is nested in the outer circumference of the jacking block, and the jacking block can move through the first guide block to rise and fall; a second guide block is provided on the top of the first guide block, and the jack rod is movably embedded in the second guide block.

[0008] Preferably, a limiting boss is provided at the bottom of the push rod; a first elastic member is sleeved on the middle of the push rod, and both ends of the first elastic member abut between the limiting boss and the inner wall of the second guide block.

[0009] Preferably, a second elastic member is provided between the bottom end surface of the connecting rod and the hinge seat.

[0010] Preferably, a chip blocking plate is provided in the fixture platform, and the chip blocking plate extends to the top of each clamping jaw.

[0011] Preferably, the wedge-shaped structure includes a first wedge-shaped surface provided on the circumferential side wall of the extension drive frame, and a second wedge-shaped surface provided on the outer side wall of the middle portion of the connecting rod; the first wedge-shaped surface is adapted to the second wedge-shaped surface.

[0012] Preferably, the first wedge-shaped surface is provided on the upper portion of the circumferential side wall of the stretching drive frame; when the stretching drive member drives the stretching drive frame to rise, the clamping claw is driven to extend outward into the annular positioning groove.

[0013] By adopting the above solution, the beneficial effects of the utility model are:

[0014] The utility model realizes the synchronous linkage of multiple clamping jaws by arranging a clamping jaw mechanism, an extension drive mechanism, and a jacking drive mechanism, and the clamping jaws can move in multiple directions, thereby realizing automatic clamping and loosening of the mobile phone middle frame, making the positioning of the mobile phone middle frame more accurate, taking and placing smooth, and the clamping force guaranteed, thereby improving the processing efficiency and processing accuracy of the mobile phone middle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 A three-dimensional diagram of the present invention omitting the machine frame and fixture platform;

[0017] Figure 3 for Figure 2 A perspective view omitting the second guide block;

[0018] Figure 4 It is a three-dimensional diagram of the clamping mechanism and the lifting drive mechanism of the utility model;

[0019] Figure 5 It is a three-dimensional diagram of the clamping mechanism and the extension drive mechanism of the utility model;

[0020] Figure 6 A three-dimensional diagram of the clamping mechanism of the present invention;

[0021] Figure 7 A perspective view of the extension drive mechanism of the present invention;

[0022] The accompanying drawings illustrate:

[0023] 1—fixture platform, 2—gripper mechanism,

[0024] 3—Extension drive mechanism, 4—Lifting drive mechanism,

[0025] 5—wedge-shaped structure, 6—first guide block,

[0026] 7—Second guide block, 8—Chip blocking piece,

[0027] 9 - mobile phone middle frame, 10 - frame,

[0028] 21—connecting rod, 22—gripping claw,

[0029] 23—hinge seat, 24—second elastic member,

[0030] 31 - extension drive frame, 32 - extension drive member,

[0031] 41 - lifting block, 42 ​​- jacking rod,

[0032] 43 - lifting drive member, 44 - first elastic member,

[0033] 51—first wedge-shaped surface, 52—second wedge-shaped surface. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0037] Reference Figures 1 to 7 As shown, the utility model provides a precision clamp for processing the middle frame of a mobile phone, which has high positioning accuracy, good product consistency, and is easy to install and disassemble, greatly improving the production and processing efficiency of the middle frame of the mobile phone. The precision clamp includes a fixture platform 1 with an annular positioning groove on the top, a plurality of clamping jaw mechanisms 2 arranged at intervals around the annular positioning groove, an extension drive mechanism 3 for driving the plurality of clamping jaw mechanisms 2 to extend, and a lifting drive mechanism 4 for lifting the plurality of clamping jaw mechanisms 2.

[0038] In addition, the present invention provides a precision fixture for processing a mobile phone middle frame, which also includes a frame 10 , and the fixture platform 1 is installed on the frame 10 .

[0039] The stretching drive mechanism 3 includes a stretching drive frame 31 and at least one stretching drive member 32 drivingly connected to the stretching drive frame 31 ; specifically, the stretching drive member 32 is a cylinder.

[0040] The clamping mechanism 2 comprises a connecting rod 21, a clamping jaw 22 mounted on the top of the connecting rod 21, and a hinged base 23 hinged to the bottom of the connecting rod 21. The contact surface between the extension drive frame 31 and the connecting rod 21 is a wedge-shaped structure 5. The extension drive member 32 is used to drive the extension drive frame 31 through the wedge-shaped structure 5 to extend the clamping jaw 22. Specifically, the clamping jaws 22 are arranged in intervals around the annular positioning groove, allowing the mobile phone middle frame 9 to be fully enclosed within the clamping jaws 22, ensuring more precise positioning and reducing the possibility of shaking during processing.

[0041] The lifting drive mechanism 4 includes a lifting block 41, a plurality of lifting rods 42 disposed above the lifting block 41, and at least one lifting drive member 43 drivingly connected to the lifting block 41. Specifically, the lifting drive member 43 is a pneumatic cylinder. The top of each lifting rod 42 is connected to the bottom of an articulated seat 23. The lifting drive member 43 is used to drive the lifting block 41 to drive the plurality of lifting rods 42 to lift the corresponding clamping jaw 22.

[0042] In order to ensure that all the clamping jaw mechanisms 2 are evenly stressed, two stretching driving members 32 and two lifting driving members 43 are provided, and the two stretching driving members 32 and the two lifting driving members 43 are arranged side by side.

[0043] The outer circumference of the jacking block 41 is nested with a first guide block 6 , and the jacking block 41 can move through the first guide block 6 to rise and fall; a second guide block 7 is provided on the top of the first guide block 6 , and a push rod 42 is movably embedded in the second guide block 7 .

[0044] The bottom of the push rod 42 is provided with a limiting boss. A first elastic member 44 is sleeved around the middle of the push rod 42, with both ends of the first elastic member 44 abutting between the limiting boss and the inner wall of the second guide block 7. Specifically, the first elastic member 44 is a spring. When the lifting drive 43 drives the lifting block 41 to lift the push rod 42, the first elastic member 44 is compressed.

[0045] Specifically, the push rod 42 is positioned above the lifting block 41, meaning that the bottom end surface of the push rod 42 is separated from the top of the lifting block 41, and the push rod 42 is not connected to the lifting block 41. Therefore, when the lifting drive 43 drives the lifting block 41 downward, the push rod 42 does not follow the lifting block 41 downward. However, because the top of the push rod 42 is connected to the bottom of the hinged seat 23, the elastic force of the first elastic member 44 causes the push rod 42 to descend, thereby driving the clamping claw 22 to press the mobile phone middle frame 9 downwardly within the annular positioning groove, thereby achieving elastic positioning of the mobile phone middle frame 9.

[0046] A second elastic member 24 is disposed between the bottom end of the connecting rod 21 and the hinge seat 23. Specifically, the second elastic member 24 is a spring. When the extension drive member 32 drives the extension drive frame 31 upward, it abuts the connecting rod 21, causing the clamping jaws 22 to extend outward. At this point, the second elastic member 24 is compressed. When the extension drive frame 31 descends, releasing the connecting rod 21, the clamping jaws 22 retract and return to their original position under the elastic force of the second elastic member 24.

[0047] The fixture platform 1 is provided with a chip blocking piece 8, and the chip blocking piece 8 extends to the top of each clamping jaw 22. By providing the chip blocking piece 8, it is prevented that the material chips enter the interior of the fixture during processing, causing the fixture to be stuck or not moving smoothly.

[0048] In one embodiment, the wedge structure 5 includes a first wedge surface 51 provided on the circumferential sidewall of the extension drive frame 31, and a second wedge surface 52 provided on the outer sidewall of the middle portion of the connecting rod 21. The first wedge surface 51 and the second wedge surface 52 are adapted to mate with each other. Furthermore, the first wedge surface 51 is provided on the upper portion of the circumferential sidewall of the extension drive frame 31. When the extension drive member 32 drives the extension drive frame 31 upward, it drives the clamping jaw 22 to extend outward into the annular positioning groove.

[0049] The working process of this utility model is as follows:

[0050] 1) The lifting drive mechanism 4 lifts the clamping mechanism 2;

[0051] 2) Place the mobile phone middle frame 9 into the annular positioning groove;

[0052] 3) The extension drive member 32 drives the extension drive frame 31 to rise, abutting the connecting rod 21 to drive the clamping claw 22 to extend outward into the annular positioning groove;

[0053] 4) The lifting drive member 43 drives the lifting block 41 downward. Under the elastic force of the first elastic member 44, the ejector rod 42 drives the clamping claw 22 downward to press the mobile phone middle frame 9 into the annular positioning groove;

[0054] 5) After the mobile phone middle frame 9 is processed, the extension drive member 32 drives the extension drive frame 31 to descend, and under the elastic force of the second elastic member 24, the clamping claw 22 retracts and returns to its original position;

[0055] 6) The lifting drive mechanism 4 lifts the clamping mechanism 2 and takes out the mobile phone middle frame 9.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A precision fixture for processing a mobile phone middle frame, characterized in that: It includes a fixture platform with an annular positioning groove on the top, a plurality of clamping mechanisms arranged at intervals around the annular positioning groove, an extension drive mechanism for driving the plurality of clamping mechanisms to extend, and a lifting drive mechanism for lifting the plurality of clamping mechanisms; the extension drive mechanism includes an extension drive frame, and at least one extension drive member driven and connected to the extension drive frame; the clamping mechanism includes a connecting rod, a clamping jaw provided at the top of the connecting rod, and a hinged seat hinged to the bottom of the connecting rod; the contact surface between the extension drive frame and the connecting rod is set to a wedge-shaped structure; the extension drive member is used to drive the extension drive frame through the wedge-shaped structure to extend the clamping jaw.

2. The precision fixture for processing the mobile phone middle frame according to claim 1, characterized in that: The jacking drive mechanism includes a jacking block, a plurality of jacking rods arranged above the jacking block, and at least one jacking drive component connected to the jacking block; the top of each jacking rod is connected to the bottom of an articulated seat; the jacking drive component is used to drive the jacking block to drive the plurality of jacking rods to lift the corresponding clamps.

3. The precision fixture for processing the mobile phone middle frame according to claim 2, characterized in that: A first guide block is nested in the outer circumference of the jacking block, and the jacking block can move through the first guide block to rise and fall; a second guide block is provided on the top of the first guide block, and the jack rod is movably embedded in the second guide block.

4. The precision fixture for processing the mobile phone middle frame according to claim 3, characterized in that: A limiting boss is provided at the bottom of the push rod; a first elastic member is sleeved on the middle of the push rod, and two ends of the first elastic member abut between the limiting boss and the inner wall of the second guide block.

5. The precision fixture for processing the mobile phone middle frame according to claim 1, characterized in that: A second elastic member is provided between the bottom end surface of the connecting rod and the hinge seat.

6. The precision fixture for processing the mobile phone middle frame according to claim 1, characterized in that: A chip blocking piece is provided in the fixture platform, and the chip blocking piece extends to the top of each clamping jaw.

7. The precision fixture for processing the mobile phone middle frame according to claim 1, characterized in that: The wedge structure includes a first wedge surface provided on the circumferential side wall of the extension drive frame, and a second wedge surface provided on the outer side wall of the middle portion of the connecting rod; the first wedge surface is adapted to the second wedge surface.

8. The precision fixture for processing the mobile phone middle frame according to claim 7, characterized in that: The first wedge-shaped surface is arranged on the upper part of the circumferential side wall of the stretching drive frame; when the stretching drive member drives the stretching drive frame to rise, it drives the clamping claw to extend outward into the annular positioning groove.

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