Integrated precision machining device for self-adaptive multi-curvature mobile phone metal outer frame

Abstract

The invention relates to the technical field of mobile phone frame machining, in particular to a self-adaptive multi-curvature mobile phone metal outer frame integrated precision machining device which comprises a workbench, a vertical frame arranged on the workbench and a machining unit arranged above the vertical frame, a mounting base is mounted on the side portion of the vertical frame, and a clamping positioning unit is arranged on the mounting base through a second driving mechanism. Clamping mechanisms are arranged on the mounting base and located on the two sides of the clamping and positioning unit respectively. The two clamping mechanisms are used for clamping the two ends of the first U-shaped piece respectively, the two clamping arms abut against the inner walls of the two arc corners of the first U-shaped piece respectively, clamping and positioning of the side frame are achieved, the clamping points are distributed at the two ends of the first U-shaped piece and the inner walls of the two arc corners, the grooving and trepanning positions cannot be shielded, and the grooving and trepanning efficiency is improved. And meanwhile, when the cutter is fed and penetrates through the first U-shaped piece, blocking interference on the cutter cannot be caused, compared with a traditional clamp, the clamping position does not need to be frequently adjusted, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone frame processing, and in particular to an integrated precision processing device for an adaptive multi-curvature mobile phone metal outer frame. Background Art

[0002] The phone frame is a structural component that surrounds the phone screen and back panel and plays a supporting, protective and decorative role. It can provide a solid physical support for the electronic components inside the phone. Figure 12 As shown, a mobile phone frame in the prior art is composed of a side frame 01 and a frame plate 02, wherein the side frame 01 is clamped on the periphery of the frame plate 02 in an embracing manner. In order to ensure that the side frame 01 can be smoothly installed on the frame plate 02, the side frame 01 is assembled by a first U-shaped part 011 and a second U-shaped part 012 in a split manner. The difference between the two is that the first U-shaped part 011 is longer than the second U-shaped part 012, and has two arc corners 0111 on the first U-shaped part 011.

[0003] Among them, the first U-shaped part 011 also needs to be grooved, such as the volume key groove, broadcast hole, power key groove, etc. The above-mentioned grooves are mainly opened around the periphery of the first U-shaped part 011. The traditional groove and hole processing equipment has a clamp for positioning and fixing the first U-shaped part 011 to ensure stability during the groove. Usually, the clamping position of the clamp is mainly on the outer surface of the first U-shaped part 011, and the clamping position of the clamp will cover the position where the groove and hole need to be opened, causing obstruction and interference. Therefore, during the processing, it is necessary to constantly adjust the position of the clamp clamping on the first U-shaped part 011 to make room for the groove and hole processing, resulting in a long processing time and low efficiency. In addition, a special clamp can be used to clamp the non-slotted and holed positions on the outer surface of the first U-shaped part 011. However, the slot and hole positions of different models of first U-shaped parts 011 are different, and the same set of special clamps cannot be used for different products. Therefore, multiple sets of special clamps are needed, which undoubtedly increases production costs. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated precision processing device for mobile phone metal frames that can adapt to multiple curvatures to solve the technical problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions.

[0006] An adaptive multi-curvature integrated precision processing device for mobile phone metal frames includes a workbench, a stand arranged on the workbench, and a processing machine unit arranged above the stand. A mounting seat is installed on the side of the stand, and a clamping and positioning unit is provided on the mounting seat through a second drive mechanism. Clamping mechanisms are respectively provided on both sides of the clamping and positioning unit on the mounting seat. The second drive mechanism is used to drive the clamping and positioning unit to feed and retract along the length direction of the first U-shaped part. The clamping and positioning unit includes an end seat arranged on the side of the mounting seat, swing arms respectively installed on both sides of the end seat, and clamping arms respectively installed at the ends of the swing arms, wherein the two clamping mechanisms clamp the two ends of the first U-shaped part respectively, and the two clamping arms are respectively clamped on the inner walls at the two arc corners of the first U-shaped part to realize the clamping and positioning of the side frame, and the clamping position will not block the slotting and opening position.

[0007] The two ends of the first U-shaped part are clamped respectively by using two clamping mechanisms, and the two clamping arms are respectively pressed against the inner walls at the two arc corners of the first U-shaped part to realize the clamping and positioning of the side frame. The clamping points are distributed on the two ends of the first U-shaped part and the inner walls at the two arc corners, which will not block the slotting and hole opening positions. At the same time, when the tool feeds through the first U-shaped part, it will not cause obstruction or interference to the tool. Compared with traditional clamps, there is no need to frequently adjust the clamping position, thereby improving processing efficiency.

[0008] Preferably, grooves are provided at the ends of the two swing arms, and rotating rods are rotatably installed in the two grooves. The two clamping arms are fixedly mounted on the corresponding rotating rods to achieve hinged connection, and support rollers are fixed at both ends of the clamping arms to squeeze and fit with the inner wall of the arc corner.

[0009] Preferably, the clamping mechanism includes a C-shaped seat arranged on the side of the mounting seat, a cylinder A fixed on one side of the C-shaped seat, and a splint arranged in the C-shaped seat. The telescopic rod of cylinder A extends into the C-shaped seat and is fixedly connected to the splint. Buffer pads are provided on the inner wall of the C-shaped seat and the clamping surface of the splint.

[0010] Preferably, a shaft is rotatably installed on the top of the stand, an L-shaped connecting arm is fixed to one end of the shaft, and a mounting seat is fixed to the end of the L-shaped connecting arm. The stand is provided with a fourth drive mechanism for driving the shaft to rotate, and the fourth drive mechanism includes a fixed seat, a drive motor D, a worm member and a worm gear B. The drive motor D is fixed to the stand through the fixed seat, the worm member is fixed to the output shaft of the drive motor D, and the worm gear B is fixed to the shaft and engages with the worm member accordingly.

[0011] Preferably, a dual-axis moving group is provided on the top of the workbench, and the vertical frame is set on the dual-axis moving group. The dual-axis moving group includes a second power guide rail and a pair of first power guide rails. The two first power guide rails are symmetrically arranged on the workbench. The two first power guide rails are each provided with a first moving seat that can be adjusted for forward and backward translation. The second power guide rail is fixed on the two first moving seats, and the second power guide rail is provided with a second moving seat that can be adjusted for left and right translation. The vertical frame is vertically fixed on the top of the second moving seat.

[0012] Preferably, the second driving mechanism includes a U-shaped frame, a threaded rod, a driving motor B and a movable plate. The U-shaped frame is fixed on the mounting seat, the threaded rod is rotatably mounted on the U-shaped frame, the driving motor B is fixed on the U-shaped frame, and the output shaft is fixed to one end of the threaded rod. A guide rod arranged parallel to the threaded rod is fixed on the U-shaped frame, the movable plate is slidably mounted on the guide rod and is threadedly mounted on the threaded rod through the threaded holes thereon. Two connecting rods are fixed on the movable plate, and the end seats are fixed on the ends of the two connecting rods.

[0013] Preferably, the mounting seat is provided with a first driving mechanism for driving the two C-shaped seats to move away from or closer to each other. The first driving mechanism includes a bidirectional screw, a driving motor A and a nut seat. A pair of driving grooves is provided on the mounting seat. The bidirectional screw is rotatably mounted on the mounting seat and passes through the two driving grooves. The driving motor A is fixed to one end of the mounting seat and fixed corresponding to one end of the bidirectional screw. Nut seats are installed in the two driving grooves with limited sliding. The two nut seats are threadedly matched and mounted on the bidirectional screw. The two C-shaped seats are respectively fixed on the corresponding nut seats.

[0014] Preferably, a rotating shaft is rotatably installed in the mounting grooves at both ends of the end seat, and the two swing arms are fixedly mounted on the corresponding rotating shafts respectively. The end seat is provided with a third drive mechanism for driving the two swing arms to swing in opposite directions and synchronously. The third drive mechanism includes a bracket A, a bidirectional worm and a drive motor C. The two brackets A are respectively fixed on the end seats, and the bidirectional worm is rotatably installed between the two brackets A. The drive motor C is fixed on one of the brackets A, and the output shaft is fixed to one end of the bidirectional worm. Worm wheels A are fixedly mounted on the two rotating shafts, and the two worm wheels A are respectively engaged with the bidirectional worm.

[0015] Preferably, the processing unit of the processing machine includes a suspension arranged on the workbench, a three-axis moving group arranged on the suspension, and a tool arranged below the three-axis moving group. The three-axis moving group is used to drive the tool to adjust forward, backward, left, right, up and down to realize dynamic operation of grooving and hole opening.

[0016] Compared with the prior art, the present invention has the following beneficial effects.

[0017] The present invention utilizes two clamping mechanisms to clamp the two ends of the first U-shaped member respectively, and utilizes two clamping arms to respectively contact the inner walls at the two arc corners of the first U-shaped member to realize the clamping and positioning of the side frame. The clamping points are distributed on the two ends of the first U-shaped member and the inner walls at the two arc corners, and will not block the slotting and hole opening positions. At the same time, when the tool feeds through the first U-shaped member, it will not cause obstruction or interference to the tool. Compared with traditional clamps, there is no need to frequently adjust the clamping position, thereby improving processing efficiency.

[0018] The present invention utilizes a clamping mechanism to clamp the end of the long side of the first U-shaped member, and utilizes a clamping arm to contact the inner wall at the arc corner, thereby providing two-point effective support for the long side of the first U-shaped member from both sides, thereby improving the force-bearing capacity of the first U-shaped member and ensuring that the first U-shaped member will not bend or deform, thereby improving processing accuracy and molding quality.

[0019] The present invention rotatably and articulately mounts the clamping arm on the end of the swing arm. When the clamping arm collides with the inner wall at the arc corner, it can adaptively rotate and adjust according to the curvature of the inner wall at the arc corner until both ends collide with the inner wall at the arc corner, providing two-point contact support, effectively ensuring stability during clamping. At the same time, support rollers are provided at both ends of the clamping arm, and the outer edge arc surface of the support roller is used to collide with the inner wall at the arc corner, which has good adaptability and reduces damage to the inner wall at the arc corner.

[0020] The present invention provides a first driving mechanism to drive the two clamping mechanisms to adjust the spacing to adapt to the different widths of the first U-shaped part. By providing a second driving mechanism, the present invention can drive the clamping and positioning unit to feed and retract to adapt to the different lengths of the first U-shaped part. By providing a third driving mechanism, the two swing arms can be swung and adjusted. Combined with the rotating hinge effect of the clamping arm, the two support rollers can adapt to the arc angles of different curvatures on different first U-shaped parts, thereby ensuring that the present device can be used for clamping the first U-shaped parts of different products. It has high versatility and does not require multiple sets of clamping jigs, thereby reducing production investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 for Figure 1 The structure shown omits the schematic diagram of the hood;

[0023] Figure 3 for Figure 2 Schematic diagram of the local structure shown;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0025] Figure 5 for Figure 3 The structure shown omits the workbench schematic diagram;

[0026] Figure 6 Schematic diagram of the structure of the clamping and positioning unit in the present invention;

[0027] Figure 7 Detailed structural diagram of the clamping mechanism in the present invention;

[0028] Figure 8 Schematic diagram of the surface structure of the end seat in the present invention;

[0029] Figure 9 A schematic diagram showing how to position the first U-shaped member using the device;

[0030] Figure 10 for Figure 9 A schematic diagram of the structure at center A;

[0031] Figure 11 for Figure 9 A magnified schematic diagram of the structure at point B in the middle;

[0032] Figure 12 This is a schematic diagram of the outer frame structure of an existing mobile phone;

[0033] Figure 13 Detailed structural diagram of the side frame.

[0034] In the figure: 01, side frame; 011, first U-shaped member; 0111, arc angle; 012, second U-shaped member; 02, frame plate; 1, workbench; 11, machine cover; 12, stand; 13, shaft; 14, L-shaped connecting arm; 2, machining unit; 21, suspension; 22, three-axis moving group; 23, tool; 3, mounting seat; 31, first driving mechanism; 301, driving slot; 311, bidirectional screw; 312, driving motor A; 313, nut seat; 4, clamping mechanism; 41, C-shaped seat; 42, cylinder A; 43, splint; 44, buffer pad; 5, second driving mechanism; 51, U-shaped Frame; 52. Threaded rod; 53. Drive motor B; 54. Guide rod; 55. Moving plate; 56. Connecting rod; 6. End seat; 61. Swing arm; 611. Groove; 612. Rotating rod; 62. Clamping arm; 63. Support roller; 64. Rotating shaft; 7. Third driving mechanism; 71. Bracket A; 72. Bidirectional worm; 73. Drive motor C; 74. Worm gear A; 8. Fourth driving mechanism; 81. Fixed seat; 82. Drive motor D; 83. Worm member; 84. Worm gear B; 9. Dual-axis moving group; 91. First power guide rail; 92. First moving seat; 93. Second power guide rail; 94. Second moving seat. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0036] See also Figures 1-13 The present invention provides an adaptive multi-curvature integrated precision processing device for a mobile phone metal frame, comprising a workbench 1, a stand 12 and a processing machine unit 2. A cover 11 is provided on the workbench 1, and the processing machine unit 2 and the stand 12 are both arranged in the cover 11. The cover 11 is used to provide a shielding and protection effect during grooving and hole opening processing to avoid splashing of processing debris and accidental touch by personnel, thereby improving safety during processing. The processing machine unit 2 comprises a suspension 21 provided on the workbench 1, a three-axis moving group 22 provided on the suspension 21, and a tool 23 provided below the three-axis moving group 22. The three-axis moving group 22 is used to drive the tool 23 to adjust forward, backward, left, right, up and down to realize dynamic operation of grooving and hole opening.

[0037] The tool 23 rotates to cut the first U-shaped part 011, and moves forward, backward, left and right under the drive of the three-axis moving group 22 to achieve grooving and hole drilling operations. The suspension 21, three-axis moving group 22 and tool 23 all adopt existing technologies, and the specific structure and working principle will not be described in detail.

[0038] A mounting base 3 is installed on the side of the stand 12, and a clamping and positioning unit is provided on the mounting base 3 through a second driving mechanism 5. Clamping mechanisms 4 are respectively provided on both sides of the clamping and positioning unit on the mounting base 3. The second driving mechanism 5 is used to drive the clamping and positioning unit to feed and retract along the length direction of the first U-shaped member 011. The clamping and positioning unit includes an end seat 6 provided on the side of the mounting base 3, swing arms 61 respectively installed on both sides of the end seat 6, and clamping arms 62 respectively installed at the ends of the swing arms 61.

[0039] The two clamping mechanisms 4 are used to clamp the two ends of the first U-shaped part 011 and the second U-shaped part 012 respectively, and then the second driving mechanism 5 is used to drive the clamping and positioning unit to feed toward the short side of the first U-shaped part 011 until the two clamping arms 62 respectively contact the inner walls of the two arc corners 0111 on the first U-shaped part 011 from the inside, thereby achieving the clamping and positioning of the first U-shaped part 011 to ensure stability during the slotting and hole processing.

[0040] The two ends of the first U-shaped part 011 are clamped respectively by using two clamping mechanisms 4, and the two clamping arms 62 are respectively pressed against the inner walls at the two arc corners 0111 of the first U-shaped part 011 to realize the clamping and positioning of the side frame 01. The clamping points are distributed on the two ends of the first U-shaped part 011 and the inner walls at the two arc corners 0111, and will not block the slotting and hole opening positions. At the same time, when the tool 23 is fed through the first U-shaped part 011, it will not cause obstruction or interference to the tool 23. Compared with traditional clamps, there is no need to frequently adjust the clamping position, thereby improving processing efficiency.

[0041] In addition, since the first U-shaped part 011 is a U-shaped structure, when the long sides of the first U-shaped part 011 are grooved and drilled, the long sides are easily bent and deformed toward one side of the U-shaped opening due to excessive force, affecting the processing accuracy and molding quality. The clamping mechanism 4 is used to clamp the end of the long side of the first U-shaped part 011, and the clamping arm 62 is used to contact the inner wall at the arc corner 0111, which can provide two-point effective support from both sides of the long side of the first U-shaped part 011, thereby improving the force-bearing capacity of the first U-shaped part 011 and ensuring that the first U-shaped part 011 will not bend and deform, thereby improving the processing accuracy and molding quality.

[0042] See also Figure 6 and Figure 8 The ends of the two swing arms 61 are provided with grooves 611, and the two grooves 611 are rotatably installed with rotating rods 612. The two clamping arms 62 are respectively fixedly sleeved on the corresponding rotating rods 612 to achieve hinged connection. Both ends of the clamping arms 62 are fixed with support rollers 63 that are squeezed and matched with the inner wall of the arc corner 0111.

[0043] The clamping arm 62 is rotatably hingedly mounted on the end of the swing arm 61. When the clamping arm 62 contacts the inner wall at the arc angle 0111, it can be adaptively rotated and adjusted according to the curvature of the inner wall at the arc angle 0111 until both ends contact the inner wall at the arc angle 0111, providing two-point contact support, effectively ensuring the stability during clamping. At the same time, support rollers 63 are provided at both ends of the clamping arm 62, such as Figure 11 As shown, the outer edge arc surface of the support roller 63 is used to contact the inner wall at the arc angle 0111, which has good adaptability and reduces damage to the inner wall at the arc angle 0111.

[0044] See also Figure 6 and Figure 7 The clamping mechanism 4 includes a C-shaped seat 41 provided on the side of the mounting seat 3, a cylinder A42 fixed to one side of the C-shaped seat 41, and a clamping plate 43 provided in the C-shaped seat 41. The telescopic rod of the cylinder A42 extends through the C-shaped seat 41 and is fixedly connected to the clamping plate 43. Buffer pads 44 are provided on the inner wall of the C-shaped seat 41 and the clamping surface of the clamping plate 43.

[0045] The end of the first U-shaped piece 011 is clamped between the clamping plate 43 and one side of the C-shaped seat 41. The cylinder A42 is extended to push the clamping plate 43 to press the end of the first U-shaped piece 011 against one side of the C-shaped seat 41, thereby clamping the end of the first U-shaped piece 011. In addition, when clamping, Figure 10 As shown, the buffer pad 44 contacts the outer surface of the first U-shaped member 011, providing buffer protection and anti-slip effects, thereby avoiding damage to the outer surface of the first U-shaped member 011 and improving the firmness of the clamping.

[0046] See also Figure 3 、 Figure 4 and Figure 5 A shaft 13 is rotatably installed on the top of the stand 12, and an L-shaped connecting arm 14 is fixed to one end of the shaft 13. The mounting seat 3 is fixed to the end of the L-shaped connecting arm 14. The stand 12 is provided with a fourth driving mechanism 8 for driving the shaft 13 to rotate. The fourth driving mechanism 8 includes a fixed seat 81, a driving motor D82, a worm member 83 and a worm gear B84. The driving motor D82 is fixed to the stand 12 through the fixed seat 81, the worm member 83 is fixed to the output shaft of the driving motor D82, and the worm gear B84 is fixed to the shaft 13 and engages with the worm member 83 accordingly.

[0047] The worm gear 83 is driven to rotate by the driving motor D82, and the rotating worm gear 83 engages with the driving worm wheel B84 and drives the shaft 13 to rotate. Under the connection action of the L-shaped connecting arm 14, the L-shaped connecting arm 14 can be driven to swing, and then the clamped first U-shaped part 011 can be driven to rotate and reverse adjustment, that is, after the slotting and hole-making processing on one long side of the first U-shaped part 011 is completed, the first U-shaped part 011 is driven to rotate until its short side faces the tool 23, and the short side of the first U-shaped part 011 can be slotted and hole-made. After that, the first U-shaped part 011 is continued to be driven to rotate until the other long side faces the tool 23, and the other long side can be slotted and hole-made, so as to continuously complete the slotting and hole-making processing on the three sides of the first U-shaped part 011 in sequence, further improving the processing efficiency.

[0048] A biaxial moving group 9 is provided on the top of the workbench 1, and a vertical frame 12 is set on the biaxial moving group 9. The biaxial moving group 9 includes a second power guide rail 93 and a pair of first power guide rails 91. The two first power guide rails 91 are symmetrically arranged on the workbench 1. The two first power guide rails 91 are both provided with a first moving seat 92 that can be adjusted for forward and backward translation. The second power guide rail 93 is fixed on the two first moving seats 92. The second power guide rail 93 is provided with a second moving seat 94 that can be adjusted for left and right translation. The vertical frame 12 is vertically fixed on the top of the second moving seat 94.

[0049] By driving the first movable seat 92 through the first power guide rail 91, the first U-shaped part 011 can be driven to move forward and backward. By driving the second movable seat 94 through the second power guide rail 93, the first U-shaped part 011 can be driven to move left and right. Combined with the three-axis movement effect provided by the three-axis moving group 22 for the tool 23, it is ensured that the tool 23 can effectively reach the required processing position on the first U-shaped part 011, further ensuring the precision of the processing.

[0050] Since the size of the first U-shaped piece 011 and the curvature of the arc angle 0111 are uniformly distributed in different products, in order to ensure that the device can adaptably hold the first U-shaped piece 011 of different products, please refer to Figure 6 and Figure 8, the present invention has made the following design:

[0051] The second driving mechanism 5 includes a U-shaped frame 51, a threaded rod 52, a driving motor B53 and a movable plate 55. The U-shaped frame 51 is fixed on the mounting base 3, the threaded rod 52 is rotatably mounted on the U-shaped frame 51, the driving motor B53 is fixed on the U-shaped frame 51, and the output shaft is fixed to one end of the threaded rod 52. A guide rod 54 arranged parallel to the threaded rod 52 is fixed on the U-shaped frame 51, the movable plate 55 is slidably mounted on the guide rod 54, and is threadedly matched with the threaded hole on it. Two connecting rods 56 are fixed on the movable plate 55, and the end seat 6 is fixed on the end portions of the two connecting rods 56.

[0052] The driving motor B53 works, and its output shaft drives the threaded rod 52 to rotate. The rotating threaded rod 52 drives the movable plate 55 to translate and adjust along the guide rod 54. Under the connection action of the connecting rod 56, the end seat 6 is driven to move synchronously, and then the two clamping arms 62 are driven to adjust synchronously, realizing the feeding and retraction of the clamping arms 62, and at the same time being able to adapt to the first U-shaped parts 011 of different lengths.

[0053] The mounting base 3 is provided with a first driving mechanism 31 for driving the two C-shaped seats 41 to move away from or closer to each other. The first driving mechanism 31 includes a bidirectional screw 311, a driving motor A312 and a nut seat 313. A pair of driving grooves 301 are provided on the mounting base 3. The bidirectional screw 311 is rotatably installed on the mounting base 3 and passes through the two driving grooves 301. The driving motor A312 is fixed at one end of the mounting base 3 and is fixed corresponding to one end of the bidirectional screw 311. Nut seats 313 are installed in the two driving grooves 301 with limited sliding. The two nut seats 313 are threadedly matched and mounted on the bidirectional screw 311. The two C-shaped seats 41 are respectively fixed on the corresponding nut seats 313.

[0054] By driving the motor A312, its output shaft drives the bidirectional screw 311 to rotate, and the rotating bidirectional screw 311 drives the two nut seats 313 to move closer to or away from each other, thereby driving the two clamping mechanisms 4 to adjust synchronously to adapt to the changes in the spacing between the two long sides in different first U-shaped parts 011.

[0055] A rotating shaft 64 is rotatably installed in the mounting grooves at both ends of the end seat 6, and the two swing arms 61 are fixedly mounted on the corresponding rotating shafts 64. The end seat 6 is provided with a third drive mechanism 7 for driving the two swing arms 61 to swing in opposite directions and synchronously. The third drive mechanism 7 includes a bracket A71, a bidirectional worm 72 and a drive motor C73. The two brackets A71 are respectively fixed on the end seat 6. The bidirectional worm 72 is rotatably installed between the two brackets A71. The drive motor C73 is fixed on one of the brackets A71, and the output shaft is fixed to one end of the bidirectional worm 72. A worm gear A74 is fixedly mounted on the two rotating shafts 64, and the two worm gears A74 are respectively engaged with the bidirectional worm 72.

[0056] The driving motor C73 works, and its output shaft drives the bidirectional worm 72 to rotate. The rotating bidirectional worm 72 engages and drives the two worm wheels A74 and drives the rotating shafts 64 on both sides to rotate respectively, thereby driving the two swing arms 61 to rotate in opposite directions, and the rotation amount of the two swing arms 61 is consistent. Combined with the feed or retract drive of the end seat 6 by the second driving mechanism 5 and the adaptive adjustment effect of the hinged rotation of the clamping arm 62, the two support rollers 63 can adapt to the arc angles 0111 of different curvatures on different first U-shaped parts 011.

[0057] In addition, the one-way transmission effect of the bidirectional worm 72 and the worm wheel A74 can achieve a self-locking effect. When the non-drive motor C73 is not working, it ensures that the two rotating shafts 64 will not swing at will, thereby helping to maintain the rotation of the two swing arms 61, thereby ensuring the stability of the support roller 63 when it contacts the inner wall at the arc angle 0111.

[0058] It will be apparent 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 characteristics of the present invention.

Claims

1. An adaptive multi-curvature mobile phone metal frame integrated precision processing device, comprising a workbench (1), a stand (12) arranged on the workbench (1), and a processing unit (2) arranged above the stand (12), characterized in that: A mounting seat (3) is installed on the side of the stand (12); a clamping and positioning unit is provided on the mounting seat (3) via a second driving mechanism (5); and clamping mechanisms (4) are provided on both sides of the clamping and positioning unit on the mounting seat (3); The second driving mechanism (5) is used to drive the clamping and positioning unit to advance and retract along the length direction of the first U-shaped member (011); The clamping and positioning unit comprises an end seat (6) arranged on the side of the mounting seat (3), swing arms (61) respectively mounted on both sides of the end seat (6), and clamping arms (62) respectively mounted on the ends of the swing arms (61); The two clamping mechanisms (4) clamp the two ends of the first U-shaped member (011) respectively, and the two clamping arms (62) clamp on the inner walls of the two arc corners (0111) of the first U-shaped member (011) respectively, so as to achieve clamping and positioning of the side frame (01), and the clamping position will not block the slot opening position.

2. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 1, characterized in that: The ends of the two swing arms (61) are each provided with a groove (611), and a rotating rod (612) is rotatably mounted in each of the two grooves (611); The two clamping arms (62) are respectively fixedly sleeved on the corresponding rotating rods (612) to achieve hinge connection; Support rollers (63) that are pressed and matched with the inner wall at the arc angle (0111) are fixed at both ends of the clamping arm (62).

3. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 1, characterized in that: The clamping mechanism (4) comprises a C-shaped seat (41) arranged on the side of the mounting seat (3), a cylinder A (42) fixed to one side of the C-shaped seat (41), and a clamping plate (43) arranged in the C-shaped seat (41); The telescopic rod of the cylinder A (42) extends through the C-shaped seat (41) and is fixedly connected to the clamping plate (43); Buffer pads (44) are provided on the inner wall of the C-shaped seat (41) and on the clamping surface of the clamping plate (43).

4. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 1, characterized in that: A shaft (13) is rotatably mounted on the top of the stand (12); an L-shaped connecting arm (14) is fixed to one end of the shaft (13); and the mounting seat (3) is fixed to the end of the L-shaped connecting arm (14); The stand (12) is provided with a fourth driving mechanism (8) for driving the shaft (13) to rotate; The fourth driving mechanism (8) comprises a fixed seat (81), a driving motor D (82), a worm member (83) and a worm wheel B (84); The drive motor D (82) is fixed to the stand (12) via the fixing seat (81), and the worm member (83) is fixed to the output shaft of the drive motor D (82); The worm wheel B (84) is fixed on the shaft (13) and meshes with the worm member (83) accordingly.

5. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 4, characterized in that: A double-axis moving group (9) is provided on the top of the workbench (1), and the stand (12) is arranged on the double-axis moving group (9); The dual-axis moving group (9) comprises a second power guide rail (93) and a pair of first power guide rails (91); The two first power guide rails (91) are symmetrically arranged on the workbench (1), and the two first power guide rails (91) are both provided with a first movable seat (92) capable of front-rear translation adjustment; The second power guide rail (93) is fixed on the two first movable seats (92), and a second movable seat (94) capable of left-right translation adjustment is provided on the second power guide rail (93), and the stand (12) is vertically fixed on the top of the second movable seat (94).

6. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 1, characterized in that: The second driving mechanism (5) comprises a U-shaped frame (51), a threaded rod (52), a driving motor B (53) and a moving plate (55); The U-shaped frame (51) is fixed on the mounting seat (3), and the threaded rod (52) is rotatably mounted on the U-shaped frame (51); The driving motor B (53) is fixed on the U-shaped frame (51), and the output shaft is fixed to one end of the threaded rod (52); A guide rod (54) arranged parallel to the threaded rod (52) is fixed on the U-shaped frame (51); The movable plate (55) is slidably mounted on the guide rod (54) and is threadably mounted on the threaded rod (52) through a threaded hole thereon; Two connecting rods (56) are fixed on the movable plate (55), and the end seat (6) is fixed on the ends of the two connecting rods (56).

7. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 3, characterized in that: The mounting seat (3) is provided with a first driving mechanism (31) for driving the two C-shaped seats (41) to move away from or towards each other; The first driving mechanism (31) comprises a bidirectional screw (311), a driving motor A (312) and a nut seat (313); The mounting seat (3) is provided with a pair of driving grooves (301), and the bidirectional screw (311) is rotatably mounted on the mounting seat (3) and passes through the two driving grooves (301); The driving motor A (312) is fixed to one end of the mounting seat (3) and correspondingly fixed to one end of the bidirectional screw (311); The nut seats (313) are both installed in the two driving grooves (301) in a limited sliding manner, and the two nut seats (313) are both thread-matched and sleeved on the bidirectional screw rod (311); The two C-shaped seats (41) are respectively fixed on the corresponding nut seats (313).

8. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 1, characterized in that: A rotating shaft (64) is rotatably mounted in the mounting grooves at both ends of the end seat (6), and the two swing arms (61) are respectively fixedly sleeved on the corresponding rotating shaft (64); The end seat (6) is provided with a third driving mechanism (7) for driving the two swing arms (61) to swing in opposite directions and synchronously. The third driving mechanism (7) comprises a bracket A (71), a bidirectional worm gear (72) and a driving motor C (73); The two brackets A (71) are respectively fixed on the end seats (6), and the bidirectional worm gear (72) is rotatably mounted between the two brackets A (71); The driving motor C (73) is fixed on one of the brackets A (71), and the output shaft is fixed to one end of the bidirectional worm gear (72); A worm gear A (74) is fixedly mounted on each of the two rotating shafts (64), and the two worm gears A (74) are respectively meshed with the bidirectional worm gear (72).

9. The adaptive multi-curvature mobile phone metal frame integrated precision processing device according to claim 1, characterized in that: The machining unit (2) comprises a suspension (21) arranged on the workbench (1), a three-axis moving group (22) arranged on the suspension (21), and a tool (23) arranged below the three-axis moving group (22); The three-axis moving group (22) is used to drive the tool (23) to adjust forward, backward, left, right, up and down, so as to realize the dynamic operation of slotting and hole opening.

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