Milling device for face shell support

Abstract

The invention relates to the technical field of milling devices, in particular to a face shell support milling device which comprises a machine table. The machine table is provided with a clamping device; the machine table is provided with a milling cutter at the top of the clamping device; the clamping device comprises a clamping seat; a fixed clamping arm is arranged at the top of the clamping seat; the clamping seat is slidably provided with a sliding seat; a sliding clamping arm is arranged at the top of the sliding seat; the sliding clamping arm is telescopically and movably provided with a clamping jaw; the sliding seat is provided with an adsorption seat; an adsorption disc is arranged at the top of the adsorption seat; the adsorption seat is detachably connected with a sealing sleeve; a linkage assembly is arranged between the sealing sleeve and the clamping jaw. Through the linkage design of the telescopic clamping jaw, the sealing sleeve and the linkage assembly, the clamping force is dynamically adjusted along with the milling process; in the initial stage of machining, the clamping jaw provides enough clamping force to guarantee the stability of a workpiece, when the milling depth is increased, the milling cutter mills the protruding sealing sleeve, the linkage assembly is triggered by the structural change of the milling cutter, the clamping jaw is driven to stretch out and draw back in a self-adaptive mode, the clamping force is gradually reduced, and therefore the face shell support is prevented from deforming.

Description

Technical Field

[0001] This invention relates to the field of milling equipment technology, and more specifically to a milling equipment for faceplate support. Background Technology

[0002] In the milling process of thin-walled components such as the mid-frame and front cover bracket of mobile phones, fixtures are typically used to fix the sheet metal to ensure the accuracy of the machining position. However, in existing processes, clamping devices often employ a constant high-strength clamping method to prevent workpiece displacement during milling. As the milling depth gradually increases, the stress state of the workpiece changes. If a high-strength clamping force is maintained, it can easily cause elastic or plastic deformation of the sheet metal, leading to a decrease in the dimensional accuracy of the thin-walled areas of the mid-frame, and even irreversible machining defects. This problem is particularly prominent in the machining of deep cavities, narrow grooves, or large-area thinning areas. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing a milling apparatus for faceplate supports.

[0004] The objective of this invention is achieved through the following technical solution: a milling apparatus for a faceplate support, comprising a machine base; the machine base is provided with a clamping device; and the machine base is provided with a milling cutter at the top of the clamping device. The clamping device includes a clamping seat; a fixed clamping arm is provided on the top of the clamping seat; a sliding seat is provided on the clamping seat in a horizontal direction; a sliding clamping arm is provided on the top of the sliding seat; a clamping groove for clamping the faceplate support is formed between the fixed clamping arm and the sliding clamping arm. The sliding clamping arm has a gripper that extends and retracts horizontally at one end near the fixed clamping arm; the sliding seat has an adsorption seat; the top of the adsorption seat has an adsorption plate; the adsorption plate is located in the clamping groove; the adsorption seat is detachably connected to a sealing sleeve; the sealing sleeve protrudes from the adsorption plate; and a linkage component is provided between the sealing sleeve and the gripper.

[0005] The present invention is further configured such that the adsorption seat is provided with an adsorption cavity; the adsorption disk is provided with a plurality of adsorption holes communicating with the adsorption cavity; and the sliding seat is provided with an adsorption vacuum tube communicating with the adsorption cavity.

[0006] The present invention is further configured such that the adsorption seat has a lower cavity and an upper cavity; the upper cavity is located at the top of the lower cavity; a partition is provided between the upper cavity and the lower cavity; the adsorption seat has a lower vacuum tube communicating with the lower cavity; and the adsorption seat has an upper vacuum tube communicating with the upper cavity.

[0007] The present invention is further configured such that: the adsorption plate is provided with a clearance perforation; the partition is provided with a positioning perforation; the bottom of the sealing sleeve is detachably connected to the positioning perforation; the middle part of the sealing sleeve passes through the clearance perforation; the bottom of the sealing sleeve is sealed to the positioning perforation; and the middle part of the sealing sleeve is sealed to the clearance perforation.

[0008] The present invention is further configured such that the sealing sleeve is provided with an upper air passage and a lower air passage; the height of the top of the upper air passage is higher than the height of the top of the lower air passage; the upper air passage is connected to the upper cavity; and the lower air passage is connected to the lower cavity.

[0009] The present invention is further configured such that the sliding clamping arm has a clamping sealing cavity; the clamping jaw includes a clamping part, a connecting part and a sliding part; the sliding part is slidably disposed in the clamping sealing cavity; the clamping part protrudes out of the clamping sealing cavity; the clamping part is connected to the sliding part through the connecting part; a sealing spring is provided between the end of the sliding part near the clamping part and the clamping sealing cavity.

[0010] The present invention is further configured such that the linkage assembly includes a linkage cavity disposed in the sliding seat and a piston head disposed in the linkage cavity in a sealed manner; one end of the piston head is provided with an upper piston rod and a lower piston rod; the upper piston rod is disposed in a sealed manner in the upper cavity; the lower piston rod is disposed in a sealed manner in the lower cavity; The linkage assembly also includes an air pipe disposed on the sliding seat; the other end of the piston head is connected to the cavity between the linkage chamber and one end of the air pipe; the end of the sliding part near the clamping part is connected to the cavity between the clamping sealing cavity and the other end of the air pipe; the cavity between the piston head and the linkage chamber is connected to the atmosphere.

[0011] The present invention is further configured such that multiple adsorption pores are evenly distributed on the adsorption disk.

[0012] The present invention is further configured such that the machine tool is provided with a vise; the vise is provided with a fixed end and a movable end; the fixed end of the vise is connected to a fixed clamping arm; and the movable end of the vise abuts against a sliding clamping arm. The machine tool is equipped with a transverse movement mechanism for driving the vise to move laterally and a longitudinal movement mechanism for driving the vise to move longitudinally.

[0013] The present invention is further configured such that the machine tool is provided with a lifting mechanism for driving the milling cutter to rise and fall.

[0014] The beneficial effects of the present invention are as follows: The present invention achieves dynamic adjustment of clamping force as the milling process progresses through the linkage design of telescopic jaws, sealing sleeves and linkage components. In the early stage of processing, the jaws provide sufficient clamping force to ensure the stability of the workpiece. When the milling depth increases, the milling cutter mills the protruding sealing sleeve. The structural change of the sleeve triggers the linkage components, which drive the jaws to adaptively extend and retract, gradually reducing the clamping force, thereby preventing deformation of the faceplate support. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the clamping device of the present invention; Figure 3 This is a structural schematic diagram of the clamping device of the present invention from another perspective; Figure 4 This is a cross-sectional view of the clamping device of the present invention; Figure 5 yes Figure 4 A magnified view of part A in the middle; Figure 6 yes Figure 4 A magnified view of part B in the middle; Figure 7 This is a schematic diagram of the structure of the faceplate support of the present invention; The components include: 1. Faceplate support; 11. Insertion hole; 2. Machine base; 21. Milling cutter; 22. Vise; 23. Transverse movement mechanism; 24. Longitudinal movement mechanism; 25. Lifting mechanism; 3. Clamping seat; 31. Fixed clamping arm; 4. Sliding seat; 41. Sliding clamping arm; 42. Clamping groove; 5. Gripper; 51. Clamping part; 52. Connecting part; 53. Sliding part; 54. Sealing spring; 6. Adsorption seat; 61. Adsorption plate. 62. Adsorption chamber; 63. Adsorption hole; 64. Adsorption vacuum tube; 65. Clearance perforation; 7. Sealing sleeve; 71. Upper air passage; 72. Lower air passage; 81. Lower chamber; 82. Upper chamber; 83. Lower vacuum tube; 84. Upper vacuum tube; 85. Partition; 86. Positioning perforation; 91. Clamping sealing chamber; 92. Linkage chamber; 93. Piston head; 94. Upper piston rod; 95. Lower piston rod; 96. Air tube. Detailed Implementation

[0016] The present invention will be further described in conjunction with the following embodiments.

[0017] Depend on Figures 1 to 7 As can be seen, the milling device for the faceplate support 1 described in this embodiment includes a machine base 2; the machine base 2 is provided with a clamping device; and the machine base 2 is provided with a milling cutter 21 on the top of the clamping device. The clamping device includes a clamping seat 3; a fixed clamping arm 31 is provided on the top of the clamping seat 3; a sliding seat 4 is slidably provided on the clamping seat 3 in the horizontal direction; a sliding clamping arm 41 is provided on the top of the sliding seat 4; a clamping groove 42 for clamping the faceplate support 1 is formed between the fixed clamping arm 31 and the sliding clamping arm 41. The sliding clamping arm 41 is equipped with a gripper 5 that extends and retracts horizontally at one end near the fixed clamping arm 31; the sliding seat 4 is equipped with an adsorption seat 6; the top of the adsorption seat 6 is equipped with an adsorption disk 61; the adsorption disk 61 is located in the clamping groove 42; the adsorption seat 6 is detachably connected to a sealing sleeve 7; the sealing sleeve 7 protrudes from the adsorption disk 61; and a linkage component is provided between the sealing sleeve 7 and the gripper 5.

[0018] Specifically, in this embodiment, the milling device for the faceplate support 1 is used by first placing the faceplate support 1 in the clamping groove 42 between the fixed clamping arm 31 and the sliding clamping arm 41. The faceplate support 1 is provided with an insertion hole 11 that cooperates with the sealing sleeve 7. The insertion hole 11 of the faceplate support 1 is aligned and inserted with the sealing sleeve 7, and the sealing sleeve 7 plays a positioning role. Then, the sliding seat 4 is driven to move, so that the jaws 5 of the sliding clamping arm 41 cooperate with the fixed clamping arm 31 to clamp the faceplate support 1. Then, the milling cutter 21 is started to mill the faceplate support 1. When the faceplate support 1 is milled to a certain extent, the milling cutter 21 mills the sealing sleeve 7, thereby triggering the linkage component to reduce the clamping force of the jaws 5 on the faceplate support 1, thereby preventing the faceplate support 1 from deforming. After the milling is completed, the faceplate support 1 is unloaded and a new sealing sleeve 7 is replaced.

[0019] This embodiment describes a milling device for a faceplate support 1. The adsorption seat 6 has an adsorption cavity 62; the adsorption disk 61 has multiple adsorption holes 63 communicating with the adsorption cavity 62; and the sliding seat 4 has an adsorption vacuum tube 64 communicating with the adsorption cavity 62. With this configuration, when the faceplate support 1 is placed in the clamping groove 42 between the fixed clamping arm 31 and the sliding clamping arm 41, a vacuum is drawn at the adsorption vacuum tube 64, thereby firmly adsorbing the faceplate support 1 onto the top of the adsorption disk 61.

[0020] This embodiment describes a milling device for a faceplate support 1. The adsorption seat 6 has a lower cavity 81 and an upper cavity 82. The upper cavity 82 is located at the top of the lower cavity 81. A partition 85 is provided between the upper cavity 82 and the lower cavity 81. The adsorption seat 6 has a lower vacuum tube 83 communicating with the lower cavity 81 and an upper vacuum tube 84 communicating with the upper cavity 82. In this embodiment, the sealing sleeve 7 has an upper air passage 71 and a lower air passage 72. The top of the upper air passage 71 is higher than the top of the lower air passage 72. The upper air passage 71 communicates with the upper cavity 82, and the lower air passage 72 communicates with the lower cavity 81.

[0021] The milling device for a faceplate support 1 described in this embodiment includes a sliding clamping arm 41 with a clamping sealing cavity 91; a clamping jaw 5 including a clamping part 51, a connecting part 52, and a sliding part 53; the sliding part 53 is slidably disposed in the clamping sealing cavity 91; the clamping part 51 protrudes out of the clamping sealing cavity 91; the clamping part 51 is connected to the sliding part 53 through the connecting part 52; a sealing spring 54 is provided between the end of the sliding part 53 near the clamping part 51 and the clamping sealing cavity 91. This embodiment describes a milling device for a faceplate support 1. The linkage assembly includes a linkage cavity 92 disposed in a sliding seat 4 and a piston head 93 movably disposed in the linkage cavity 92. One end of the piston head 93 is provided with an upper piston rod 94 and a lower piston rod 95. The upper piston rod 94 is movably disposed in an upper cavity 82. The lower piston rod 95 is movably disposed in a lower cavity 81. The linkage assembly also includes an air pipe 96 disposed in the sliding seat 4. The other end of the piston head 93 is connected to the cavity between the linkage cavity 92 and one end of the air pipe 96. The end of the sliding part 53 near the clamping part 51 is connected to the cavity between the clamping and sealing cavity 91 and the other end of the air pipe 96. The cavity between the piston head 93 and the linkage cavity 92 is connected to the atmosphere.

[0022] Specifically, in the milling device for the faceplate support 1 described in this embodiment, when in use, the sealing sleeve 7 is first installed in the positioning through hole 86 of the partition plate 85, and the bottom of the sealing sleeve 7 is sealed to the positioning through hole 86, while the middle part of the sealing sleeve 7 is sealed to the clearance through hole 65; then the faceplate support 1 is placed in the clamping groove 42 between the fixed clamping arm 31 and the sliding clamping arm 41, wherein the faceplate support 1 is provided with an insertion hole 11 that cooperates with the sealing sleeve 7. The insertion hole 11 of the faceplate support 1 is aligned and inserted with the sealing sleeve 7, and the sealing sleeve 7 plays a positioning role. Then the sliding seat 4 is driven to move, so that the jaw 5 of the sliding clamping arm 41 cooperates with the fixed clamping arm 31 to clamp the faceplate support 1; at this time, the volume of the cavity between the other end of the piston head 93 and the linkage cavity 92 is small, and under the action of the sealing spring 54, the sliding part 53 is in a position away from the fixed clamping arm 31; Next, a vacuum is drawn at the adsorption vacuum tube 64 to firmly attach the faceplate support 1 to the top of the adsorption plate 61. At the same time, a vacuum is drawn at both the upper vacuum tube 84 and the lower vacuum tube 83, that is, negative pressure is generated in the upper cavity 82 and the lower cavity 81, which applies a pulling force to the upper piston rod 94 and the lower piston rod 95 respectively, causing the piston head 93 to move towards the upper cavity 82 and the lower cavity 81. Meanwhile, the sliding part 53 moves towards the fixed clamping arm 31 through the air tube 96, thereby driving the clamping part 51 to move towards the fixed clamping arm 31. At this time, the gripper 5 applies the maximum clamping force to the faceplate support 1, and stably clamps the faceplate support 1.

[0023] Then, the milling cutter 21 is started to mill the face shell support 1. When the face shell support 1 is milled to a certain extent, the milling cutter 21 mills the sealing sleeve 7 until the top of the upper air passage 71 is milled off. Then, the upper cavity 82 is connected to the outside atmosphere through the upper air passage 71, thereby eliminating the tension with the upper piston rod 94. At this time, the piston head 93 can be reset a certain distance away from the upper cavity 82 and the lower cavity 81. Thus, through the air pipe 96, the sliding part 53 and the clamping part 51 are reset a certain distance away from the fixed clamping arm 31, so that the clamping claw 5 reduces the clamping force applied to the face shell support 1. After the milling cutter 21 mills off the top of the lower air passage 72, the lower cavity 81 is connected to the outside atmosphere through the lower air passage 72, thereby eliminating the tension with the lower piston rod 95. At this time, the piston head 93 can be completely reset in the direction away from the upper cavity 82 and the lower cavity 81, thereby allowing the sliding part 53 and the clamping part 51 to be completely reset in the direction away from the fixed clamping arm 31 through the air pipe 96, so that the gripper 5 further reduces the clamping force applied to the face support 1.

[0024] Through the above-described configuration, this embodiment can gradually reduce the clamping force of the jaws 5 on the faceplate support 1 as the milling depth of the faceplate support 1 increases, thereby effectively reducing the risk of deformation of the faceplate support 1 under stress.

[0025] This embodiment describes a milling device for a faceplate support 1. The adsorption plate 61 has a through-hole 65; the partition plate 85 has a through-hole 86; the bottom of the sealing sleeve 7 is detachably connected to the positioning hole 86; the middle portion of the sealing sleeve 7 passes through the through-hole 65; the bottom of the sealing sleeve 7 is sealed to the positioning hole 86; and the middle portion of the sealing sleeve 7 is sealed to the through-hole 65. The sealing sleeve 7 is assembled and disassembled using the above-described configuration. The connection between the bottom of the sealing sleeve 7 and the positioning hole 86 can be a threaded connection, a snap-fit ​​connection, or a detachable interference fit, etc.

[0026] The milling device for the faceplate support 1 described in this embodiment has multiple adsorption holes 63 evenly distributed on the adsorption plate 61. This arrangement allows the faceplate support 1 to be stably fixed to the adsorption plate 61.

[0027] The milling device for the faceplate support 1 described in this embodiment includes a vise 22 on the machine base 2; the vise 22 has a fixed end and a movable end; the fixed end of the vise 22 is connected to a fixed clamping arm 31; the movable end of the vise 22 abuts against a sliding clamping arm 41; the above arrangement can provide an initial clamping force to the faceplate support 1.

[0028] The machine base 2 is equipped with a transverse movement mechanism 23 for driving the vise 22 to move laterally and a longitudinal movement mechanism 24 for driving the vise 22 to move longitudinally. In this embodiment, a milling device for a faceplate support 1 is provided, wherein the machine base 2 is equipped with a lifting mechanism 25 for driving the milling cutter 21 to move up and down. The transverse movement mechanism 23, the longitudinal movement mechanism 24, and the lifting mechanism 25 can be linear modules, cylinders, or linear motors, etc.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A milling apparatus for a faceplate support, characterized in that: Includes a machine base; the machine base is equipped with a clamping device; the machine base is equipped with a milling cutter on top of the clamping device; The clamping device includes a clamping seat; a fixed clamping arm is provided on the top of the clamping seat; a sliding seat is provided on the clamping seat in a horizontal direction; a sliding clamping arm is provided on the top of the sliding seat; a clamping groove for clamping the faceplate support is formed between the fixed clamping arm and the sliding clamping arm. The sliding clamping arm has a gripper that extends and retracts horizontally at one end near the fixed clamping arm; the sliding seat has an adsorption seat; the top of the adsorption seat has an adsorption plate; the adsorption plate is located in the clamping groove; the adsorption seat is detachably connected to a sealing sleeve; the sealing sleeve protrudes from the adsorption plate; and a linkage component is provided between the sealing sleeve and the gripper.

2. The milling apparatus for faceplate support according to claim 1, characterized in that: The adsorption seat is provided with an adsorption cavity; the adsorption plate is provided with multiple adsorption holes communicating with the adsorption cavity; the sliding seat is provided with an adsorption vacuum tube communicating with the adsorption cavity.

3. The milling apparatus for faceplate support according to claim 1, characterized in that: The adsorption seat has a lower cavity and an upper cavity; the upper cavity is located at the top of the lower cavity; a partition is provided between the upper cavity and the lower cavity; the adsorption seat has a lower vacuum tube communicating with the lower cavity; the adsorption seat has an upper vacuum tube communicating with the upper cavity.

4. The milling apparatus for a faceplate support according to claim 3, characterized in that: The adsorption plate has a through-hole for clearance; the partition has a through-hole for positioning; the bottom of the sealing sleeve is detachably connected to the positioning hole; the middle part of the sealing sleeve passes through the through-hole for clearance; the bottom of the sealing sleeve is sealed to the positioning hole; the middle part of the sealing sleeve is sealed to the through-hole for clearance.

5. The milling apparatus for a faceplate support according to claim 4, characterized in that: The sealing sleeve is provided with an upper air passage and a lower air passage; the top of the upper air passage is higher than the top of the lower air passage; the upper air passage is connected to the upper cavity; the lower air passage is connected to the lower cavity.

6. The milling apparatus for a faceplate support according to claim 5, characterized in that: The sliding clamping arm is provided with a clamping sealing cavity; the clamping jaw includes a clamping part, a connecting part and a sliding part; the sliding part is slidably disposed in the clamping sealing cavity; the clamping part protrudes out of the clamping sealing cavity; the clamping part is connected to the sliding part through the connecting part; a sealing spring is provided between the end of the sliding part near the clamping part and the clamping sealing cavity.

7. The milling apparatus for a faceplate support according to claim 6, characterized in that: The linkage assembly includes a linkage cavity disposed in the sliding seat and a piston head that is movably and sealingly disposed in the linkage cavity; one end of the piston head is provided with an upper piston rod and a lower piston rod; the upper piston rod is movably and sealingly disposed in the upper cavity; the lower piston rod is movably and sealingly disposed in the lower cavity; The linkage assembly also includes an air pipe disposed on the sliding seat; the other end of the piston head is connected to the cavity between the linkage chamber and one end of the air pipe; the end of the sliding part near the clamping part is connected to the cavity between the clamping sealing cavity and the other end of the air pipe; the cavity between the piston head and the linkage chamber is connected to the atmosphere.

8. The milling apparatus for a faceplate support according to claim 2, characterized in that: Multiple adsorption pores are evenly distributed on the adsorption plate.

9. The milling apparatus for a faceplate support according to claim 1, characterized in that: The machine tool is equipped with a vise; the vise has a fixed end and a movable end; the fixed end of the vise is connected to a fixed clamping arm; the movable end of the vise abuts against a sliding clamping arm. The machine tool is equipped with a transverse movement mechanism for driving the vise to move laterally and a longitudinal movement mechanism for driving the vise to move longitudinally.

10. The milling apparatus for a faceplate support according to claim 1, characterized in that: The machine tool is equipped with a lifting mechanism for driving the milling cutter to rise and fall.

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