Jig for milling notebook computer C part

Abstract

The utility model discloses a jig for milling a notebook computer C part, which comprises an upper die assembly and a lower die assembly, the upper die assembly comprises a central plate, a plurality of side plates movably connected to the periphery of the central plate and a plurality of return mechanisms arranged at the upper end of the central plate, and the plurality of side plates can be encircled to form a working area with the size smaller than that of a port of the C part; the lower die assembly comprises a bottom plate used for bearing the C pieces, a first positioning pin, a second positioning pin, a plurality of clamping mechanisms arranged outside the bottom plate and surrounding the C pieces, and a driving mechanism arranged at the lower end of the bottom plate and connected with the center plate. After the upper die assembly is clamped in the C piece, the driving mechanism drives the center plate to move in the direction close to the lower die assembly to drive the side plates to move in the direction away from the center plate, and all the side plates can be matched with the clamping mechanism located on the outer side of the side wall of the C piece on the inner side of the side wall of the C piece to clamp the C piece. The size of the working area can be enlarged through movement of the side plates, and the side plates make contact with and support the side walls so as to avoid deformation during milling.

Description

Technical Field

[0001] The utility model belongs to the technical field of notebook computer parts processing, and in particular relates to a jig for milling a notebook C part. Background Art

[0002] The shell workpiece of the laptop computer shell where the keyboard is set is a C-piece. Such a workpiece is formed with a side wall perpendicular to the keyboard surface, and the end of the C-piece side wall is formed with an inward-retracted undercut. In the process of processing the C-piece, the undercut needs to be milled with a milling cutter to process the parting surface of the product. Traditional fixtures usually have a fixed upper mold size, and the undercut is a shrinking structure. Therefore, the upper mold size must be smaller than the C-piece port to smoothly enter the C-piece and fix the C-piece. However, such an upper mold cannot contact the side wall to provide support, so it is easy to deform during milling. Utility Model Content

[0003] In view of the interference caused by the undercut of the C-piece in the prior art, the size of the upper mold is usually fixed, and the size of the upper mold is smaller than the port of the C-piece, so that although the upper mold can smoothly enter the side wall, it cannot contact the side wall to provide support, and the side wall is easy to deform during milling; if the size of the upper mold is adapted to the port of the C-piece, it is not easy to smoothly enter the C-piece, and interference is likely to occur, resulting in difficulty in mold closing. The utility model provides a jig for milling the C-piece of a notebook.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A jig for milling a notebook C part, comprising:

[0006] An upper mold assembly, the upper mold assembly comprising a center plate, a plurality of side plates distributed one by one around the center plate and movably connected to the center plate, and a plurality of return mechanisms disposed at the upper end of the center plate and connected one by one to the side plates, wherein the plurality of side plates can enclose a working area having a size smaller than that of the C-piece port;

[0007] A lower mold assembly, the lower mold assembly cooperates with the upper mold assembly and is located below the upper mold assembly, the lower mold assembly includes a bottom plate for carrying the C piece, a first positioning pin and a second positioning pin provided at the upper end of the bottom plate, a plurality of clamping mechanisms provided outside the bottom plate and capable of surrounding the C piece, and a driving mechanism provided at the lower end of the bottom plate and detachably connected to the center plate;

[0008] The first positioning pin is used to position the C-piece on the bottom plate, and the second positioning pin is used to position the upper die assembly at the upper end of the C-piece. After the upper die assembly enters the port of the C-piece, the driving mechanism can drive the center plate to move towards the lower die assembly, thereby driving the side plates to move away from the center plate, so that all the side plates can cooperate with the clamping mechanism located outside the side wall of the C-piece inside the side wall of the C-piece to clamp the C-piece; when the upper die assembly is separated from the lower die assembly, the return mechanism can drive the side plates to return to their original positions.

[0009] Further, the two end faces of the side plate are inclined end faces, and an avoidance gap is formed between the inclined end faces of every two adjacent side plates; the cross-sectional area of the first end of the side plate is larger than that of the second end, and the first end of the side plate has two inclined wedge parts arranged at intervals. The second end of the side plate is a clamping end that cooperates with the clamping mechanism, and an L-shaped avoidance part is provided at the clamping end of each side plate. The end faces of the clamping ends of all the side plates can enclose a working area that cooperates with the clamping mechanism to clamp the side wall of the C-piece.

[0010] A chute that slidably cooperates with the inclined wedge part is provided at the position of the center plate corresponding to the inclined wedge part.

[0011] Further, the end face of the first end of the side plate is defined as a first inclined wedge surface. The inclined wedge part includes a first convex part that horizontally protrudes from the first inclined wedge surface in a direction away from the first inclined wedge surface, and two second convex parts that protrude from the side wall of the first convex part in a direction away from the first convex part and are symmetrically arranged. The second convex part is parallel to the side plate in the top-down orthographic projection plane. The end face of the second convex part facing the first inclined wedge surface is defined as a second inclined wedge surface. The first inclined wedge surface, part of the side wall of the first convex part, and the second inclined wedge surface can enclose a U-shaped inclined groove; the end face of the second convex part facing away from the first inclined wedge surface is defined as a third inclined wedge surface. The third inclined wedge surface and part of the side wall of the first convex part can form an L-shaped mating part. The end face of the first convex part facing away from the first inclined wedge surface is defined as a fourth inclined wedge surface. The two ends of the fourth inclined wedge surface are respectively adjacent to the two L-shaped mating parts.

[0012] Further, the return mechanism includes two return springs respectively and correspondingly arranged at the upper ends of the two inclined wedge parts, and a fixing block arranged at the upper ends of the two return springs. The fixing block is screwed to the center plate by bolts.

[0013] Further, the outer side wall of the center plate is a fifth inclined wedge surface that cooperates with the first inclined wedge surface. The chute is recessed from the fifth inclined wedge surface in a direction away from the fifth inclined wedge surface and vertically penetrates the center plate. The shape of the chute is adapted to the inclined wedge part.

[0014] Furthermore, the central plate is connected by a rotating shaft to two spacer plates arranged symmetrically at intervals. Each of the spacer plates is provided with a locking notch vertically penetrating the spacer plate. Each of the two locking notches is detachably connected to one of the driving mechanisms. After the driving mechanism is connected to the locking notch, the upper die assembly can be locked to the upper end of the lower die assembly.

[0015] Furthermore, the driving mechanism includes a driving unit provided at the lower end of the bottom plate, a rod body with one end connected to the driving unit, and a limiting block fixed at the other end of the rod body. Both the bottom plate and the central plate are provided with through holes for the rod body to pass through. And the driving unit can drive the rod body to move up and down in the through hole. After the rod body is received in the locking notch, the limiting block is located above the spacer plate to prevent the rod body from separating from the spacer plate.

[0016] Furthermore, the central plate is provided with a plurality of weight-reducing holes capable of penetrating the central plate, and at least two handle bars arranged at intervals are also screwed on the upper end of the central plate.

[0017] Furthermore, the upper end of the bottom plate has a profiling platform protruding away from the lower end of the bottom plate. The shape of the profiling platform is adapted to the shape of the C-piece. Both the first positioning pin and the second positioning pin are distributed on the profiling platform; a plurality of feet are provided at the lower end of the bottom plate and are distributed at the respective corner positions of the bottom plate.

[0018] Furthermore, each of the clamping mechanisms includes a mounting plate provided on the side wall of the bottom plate, a clamping cylinder provided on the upper end of the mounting plate, and a clamping block connected to the clamping cylinder and cooperating with the side plate to clamp the C-piece. The clamping cylinder is used to drive the clamping block to reciprocate in a direction approaching or departing from the profiling platform. The lower end face of the clamping block has an L-shaped contact portion adapted to the bottom plate. The clamping end face of the clamping block is provided with a plurality of chip removal grooves arranged at intervals along the length direction of the clamping block. The chip removal grooves are recessed from the clamping end face in a direction away from the clamping end face.

[0019] In summary, the beneficial effects of the utility model are as follows: 1. The keyboard surface of part C is positioned on the profiling table by the first positioning pin, and the clamping cylinder is started to move the clamping block toward the side wall until it contacts the side wall outside the side wall. The side plates in the upper mold assembly enclose and form a working area for clamping the side wall. The size of the working area is smaller than the undercut port, which facilitates the upper mold assembly to smoothly enter part C. Through the cooperation between the locking notch on the pad and the rod body, the driving unit is started to move the rod body downward, thereby driving the center plate downward to cooperate with the profiling table to clamp part C, and the side plates distributed around the center plate are driven to move horizontally away from the center plate through the oblique matching method until the side plates cooperate with the clamping block inside the side wall to clamp the side wall, and there is a gap between the L-shaped avoidance portion set on the side plate and the undercut, which facilitates the tool to extend into the undercut port to mill the undercut. The size of the working area of ​​the upper die assembly can be adjusted. When the size of the working area is small, it is convenient to clamp the upper die assembly in the C part. After entering the C part, the size of the working area is expanded by expanding the side plate outward. Finally, the side plate and the clamping block cooperate with each other to provide support for the side wall, which enhances the strength of the side wall that needs to be milled and reduces deformation. Second, the clamping block clamped on the outside of the side wall of the C part is equipped with a number of chip removal grooves, which are used to remove metal debris during processing, without affecting the support strength and preventing debris from accumulating at the contact position of the side wall and scratching the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a jig for milling a notebook C-piece.

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure with component C fixed.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the side plate in the utility model.

[0023] Figure 4 It is a top view of the upper die assembly in the utility model.

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the center plate in the utility model.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the lower mold assembly of the utility model.

[0026] Figure 7 yes Figure 6 Schematic diagram of the structure with C part positioned.

[0027] Figure 8 It is a three-dimensional structural schematic diagram of the clamping mechanism in the utility model.

[0028] Figure 9It is a structural schematic diagram of Component C.

[0029] In the figure, 100 - upper die assembly, 110 - center plate, 111 - chute, 111A - first groove, 111B - second groove, 112 - fifth inclined wedge surface, 113 - weight - reducing hole, 114 - handle, 115 - through - hole, 116 - avoidance notch, 117 - positioning pin hole, 120 - side plate, 121 - inclined end face, 1210 - avoidance gap, 122 - first inclined wedge surface, 123 - L - shaped avoidance part, 124 - inclined wedge part, 1241 - first convex part, 1241A - fourth inclined wedge surface, 1242 - second convex part, 124A - concave cavity, 125 - U - shaped inclined groove, 126 - L - shaped mating part, 127 - backing plate, 1270 - locking notch, 130 - fixing block, 200 - lower die assembly, 210 - bottom plate, 211 - profiling table, 212 - cushion foot, 220 - first positioning pin, 230 - second positioning pin, 240 - clamping mechanism, 241 - mounting plate, 242 - clamping cylinder, 243 - clamping block, 2430 - L - shaped contact part, 2431 - chip - removal groove, 250 - rod body, 260 - limit block, 300 - Component C, 310 - side wall, 311 - undercut. Detailed implementation mode

[0030] The following further elaborates the present utility model in conjunction with specific illustrations.

[0031] Please refer to Figure 9 , Component C 300 includes a keyboard surface and a side wall 310 perpendicular to the keyboard surface. The end of the side wall 310 is an undercut 311 that is recessed inward in the direction of the interior of Component C 300. The end face of the side wall 310 after milling off the undercut 311 with a tool is the parting surface of Component C 300.

[0032] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 6The utility model provides a jig for milling a notebook C-piece, comprising an upper mold assembly 100 and a lower mold assembly C-piece 200 that cooperates with the upper mold assembly 100 and is located below the upper mold assembly 100. The upper mold assembly 100 comprises a center plate 110, a plurality of side plates 120 that are distributed around the center plate 110 and are movably connected to the center plate 110, and a plurality of return mechanisms that are arranged at the upper end of the center plate 110 and are connected to the side plates 120 in a one-to-one correspondence. The plurality of side plates 120 can enclose a working area that is smaller than the port of the C-piece 300. The lower mold assembly 200 cooperates with the upper mold assembly 100 and is located below the upper mold assembly 100. The lower mold assembly 200 includes a bottom plate 210 for carrying the C piece 300, a first positioning pin 220 and a second positioning pin 230 provided at the upper end of the bottom plate 210, a plurality of clamping mechanisms 240 provided outside the bottom plate 210 and capable of surrounding the C piece 300, and a driving mechanism provided at the lower end of the bottom plate 210 and detachably connected to the center plate 110. The first positioning pin 220 is used to position the C piece 300 on the bottom plate 210, and the second positioning pin 230 is used to position the upper mold assembly 100 at the upper end of the C piece 300. When the upper mold assembly 100 enters the port of the C-piece 300, the driving mechanism can drive the center plate 110 to move toward the direction close to the lower mold assembly 200, thereby driving the side plates 120 to move away from the center plate 110, so that all the side plates 120 can cooperate with the clamping mechanism 240 located on the inner side of the side wall 310 of the C-piece 300 to clamp the C-piece 300. When the upper mold assembly 100 is separated from the lower mold assembly 200, the return mechanism can drive the side plates 120 to return. Please refer to Figure 7 The first positioning pin 220 positions the C part 300 on the lower mold assembly 200 in a manner that the C part 300 undercut 311 faces the upper mold assembly 100. The clamping mechanism 240 can clamp the side wall 310 at the periphery of the C part 300. The size of the working area is smaller than the size of the port of the undercut 311 of the C part 300, which facilitates the smooth installation of the upper mold assembly 100 into the C part 300 and makes mold closing convenient and quick. After the upper mold assembly 100 enters the side wall 310, the driving mechanism is started to drive the upper mold assembly 100 to move toward the lower mold assembly 200 and cooperate with the lower mold assembly 200 to clamp the C part 300. After the center plate 110 moves, the side plate 120 movably connected to the center plate 110 will be driven to move in a direction away from the center plate 110 until it rests against the inside of the side wall 310 and cooperates with the clamping mechanism 240 located outside the side wall 310 to clamp and fix the side wall 310. When milling the undercut 311, the side wall 310 is firmly supported to improve the supporting strength, thereby preventing the side wall 310 from deforming during milling due to insufficient supporting strength.

[0033] See also Figure 3, both end faces of the side plate 120 are inclined end faces 121. An avoidance gap 1210 is formed between every two adjacent inclined end faces 121 of the side plates 120. The avoidance gaps 1210 appear at each corner position of the upper die assembly 100. After the upper die assembly 100 enters the C-piece 300, several avoidance gaps 1210 are used to avoid the corner positions of the undercuts 311 one by one to prevent interference during mold closing. The cross-sectional area of the first end of the side plate 120 is larger than that of the second end. The second end of the side plate 120 is a clamping end that cooperates with the clamping mechanism 240. The clamping end with the largest area clamps the side wall 310 of the C-piece 300 within the side wall 310, so that the range of the side wall 310 being supported and fixed is larger and wider.

[0034] The first end of the side plate 120 has two wedge parts 124 arranged at intervals. Each clamping end of the side plate 120 is provided with an L-shaped avoidance part 123. The horizontal end face of the L-shaped avoidance part 123 is lower than the top end of the undercut 311. After the side plate 120 contacts the side wall 310, the L-shaped avoidance part 123 is used to avoid the undercut 311 and the milling cutter, leaving enough space for the cutter to mill the undercut 311. The end faces of all the clamping ends of the side plates 120 can enclose a working area that cooperates with the clamping mechanism 240 to clamp the side wall 310 of the C-piece 300. The size of the working area is smaller than the size of the port at the undercut 311 of the C-piece 300. During mold closing, it is convenient and fast for the upper die assembly 100 to enter the side wall 310 of the C-piece 300, and it is easier to clamp the workpiece.

[0035] Please continue to refer to Figure 3, the end face of the first end of the side plate 120 is defined as a first inclined wedge surface 122, the inclined wedge portion 124 includes a first convex portion 1241 horizontally protruding away from the first inclined wedge surface 122 from the first inclined wedge surface 122, and two second convex portions 1242 protruding away from the side wall of the first convex portion 1241 and arranged symmetrically. The second convex portion 1242 is parallel to the side plate 120 in the top-down orthographic projection plane, and the end face of the second convex portion 1242 facing the first inclined wedge surface 122 is defined as a second inclined wedge surface. The first inclined wedge surface 122, part of the side wall of the first convex portion 1241, and the second inclined wedge surface can enclose a U-shaped inclined groove 125. At the position of the center plate 110 corresponding to the inclined wedge portion 124, there is a chute 111 slidably matched with the inclined wedge portion 124. After the chute 111 is opened on the center plate 110, a convex portion capable of slidably matching with the U-shaped inclined groove 125 is formed. The end face of the second convex portion 1242 facing away from the first inclined wedge surface 122 is defined as a third inclined wedge surface, and the third inclined wedge surface and part of the side wall of the first convex portion 1241 can form an L-shaped matching portion 126. The end face of the first convex portion 1241 facing away from the first inclined wedge surface 122 is defined as a fourth inclined wedge surface 1241A, and both ends of the fourth inclined wedge surface 1241A are adjacent to the two L-shaped matching portions 126 respectively. The chute 111 includes two first grooves 111A for slidably matching with the second convex portion 1242 and a second groove 111B for slidably matching with the first convex portion 1241. The inclined wedge surface drives the side plate 120 to horizontally move away from the center plate 110 by means of inclined wedge cooperation with the corresponding contacting end face. The outer side wall of the center plate 110 is a fifth inclined wedge surface 112 that cooperates with the first inclined wedge surface 122. The chute 111 is recessed away from the fifth inclined wedge surface 112 and vertically penetrates the center plate 110. The inclined wedge portion 124 is similar to a cross-shaped structure, and the chute 111 is a structure adapted to the shape of the inclined wedge portion 124, and the concave-convex cooperation slides smoothly.

[0036] The return mechanisms each include two return springs respectively and correspondingly arranged at the upper ends of the two inclined wedge portions 124, and a fixing block 130 arranged at the upper ends of the two return springs. Concave cavities 124A for assembling the return springs are provided on the end face of the fixing block 130 where the return springs are arranged and the upper end face of the inclined wedge portion 124. The fixing block 130 is screwed to the center plate 110 by bolts. When the driving mechanism drives the center plate 110 to cooperate with the bottom plate 210 to fix the C-piece 300, during the process of the center plate 110, the return springs are compressed. When the mold is opened and the upper mold assembly 100 is separated from the lower mold assembly 200, the return springs return to their original state and drive the side plate 120 to return to facilitate the next use of the lower mold assembly 200.

[0037] Please refer toFigure 5 , at least two positioning pin holes 117 are formed in the center plate 110. When assembling the upper die assembly 100, the second positioning pin 230 can cooperate with the positioning pin holes 117 to facilitate the positioning of the position of the center plate 110.

[0038] The center plate 110 is connected with two spacer plates 127 which are arranged symmetrically at intervals through a rotating shaft. Each spacer plate 127 is provided with a locking notch 1270 vertically penetrating through the spacer plate 127. One driving mechanism is detachably connected to each of the two locking notches 1270 respectively. After the driving mechanism is connected with the locking notch 1270, the upper die assembly 100 can be locked at the upper end of the lower die assembly 200. The driving mechanism includes a driving unit arranged at the lower end of the bottom plate 210, a rod body 250 with one end connected to the driving unit, and a limiting block 260 fixed at the other end of the rod body 250. The driving unit preferably adopts a cylinder. Through holes 115 for the rod body 250 to pass through are arranged on both the bottom plate 210 and the center plate 110. And the driving unit can drive the rod body 250 to move up and down in the through hole 115. After the rod body 250 is accommodated in the locking notch 1270, the limiting block 260 is located above the spacer plate 127 to prevent the rod body 250 from separating from the spacer plate 127. Before the upper die assembly 100 enters the C-piece 300, rotate the spacer plate 127 to make the locking notch 1270 away from the through hole 115. After the upper die assembly 100 is placed into the C-piece 300, the rod body 250 passes through the through hole 115. Rotate the spacer plate 127 to move the locking notch 1270 towards the through hole 115 until the rod body 250 enters the locking notch 1270. After starting the driving unit, the rod body 250 moves towards the direction close to the lower die assembly 200. Therefore, the limiting block 260 will abut against the spacer plate 127 to lock the upper die assembly 100. Rotate the spacer plate 127 away from the rod body 250, and the upper die assembly 100 can be separated from the lower die assembly 200.

[0039] Please continue to refer to Figure 5 , a number of weight-reducing holes 113 capable of penetrating through the center plate 110 are arranged on the center plate 110. The center plate 110 and the side plate 120 are preferably made of metal materials, which are more durable. And the number of weight-reducing holes 113 formed in the center plate 110 has the function of reducing the weight of the upper die assembly 100. At least two handles 114 arranged at intervals are also screwed on the upper end of the center plate 110. When the staff holds the handles 114, it is more convenient to pick up the upper die assembly 100.

[0040] Please refer to Figure 6The upper end of the bottom plate 210 has a profiling platform 211 protruding away from the lower end of the bottom plate 210. The shape of the profiling platform 211 matches the shape of the C piece 300. The first positioning pin 220 and the second positioning pin 230 are both distributed on the profiling platform 211. The side plate 120 and the center plate 110 are both provided with an avoidance notch 116 for avoiding the first positioning pin 220. The lower end of the bottom plate 210 is provided with a plurality of feet 212 distributed at each corner of the bottom plate 210, so that the bottom plate 210 has a certain height when placed on a plane, which is convenient for installing the lower mold assembly 200 on the CNC processing table, and can also prevent the processing table from causing wear to the drive unit.

[0041] See also Figure 8 The clamping mechanism 240 includes a mounting plate 241 disposed on the side wall of the bottom plate 210, a clamping cylinder 242 disposed on the upper end of the mounting plate 241, and a clamping block 243 connected to the clamping cylinder 242 and cooperating with the side plate 120 for clamping the C piece 300. The lower end surface of the clamping block 243 is provided with an L-shaped contact portion 2430 adapted to the bottom plate 210. The clamping cylinder 242 can drive the clamping block 243 to move toward or away from the profiling table 211. The top surface and the side wall of the bottom plate 210 form an L-shaped structure. After the L-shaped structure is adapted to contact with the L-shaped contact portion 2430, the clamping end surface of the clamping block 243 is located outside the profiling table 211 and contacts the side wall 310 of the C piece 300 positioned on the profiling table 211.

[0042] Please continue reading Figure 8 The clamping end face of the clamping block 243 is provided with a plurality of chip grooves 2431 arranged at intervals along the length direction of the clamping block 243. The chip grooves 2431 are recessed from the clamping end face in a direction away from the clamping end face. A large amount of metal debris will be generated in the process of milling off the undercut 311 to form the parting surface. After the metal debris is accommodated in the chip grooves 2431, the friction of the debris on the side wall 310 is reduced to avoid scratching the product.

[0043] This fixture: First, the keyboard surface of the C-piece 300 is positioned on the profiling table 211 by the first positioning pin 220. The clamping cylinder 242 is activated, causing the clamping block 243 to move towards the side wall 310 until it contacts the side wall 310 outside the side wall 310. Each side plate 120 in the upper die assembly 100 encloses to form a working area for clamping the side wall 310. The size of the working area is smaller than the port of the undercut 311 to facilitate the smooth entry of the upper die assembly 100 into the C-piece 300. Through the cooperation of the locking notch 1270 on the backing plate 127 and the rod body 250, the driving unit is activated to lower the rod body 250, thereby driving the central plate 110 to move downward and cooperate with the profiling table 211 to clamp the C-piece 300 (i.e., the keyboard surface). The side plates 120 distributed around the central plate 110 are driven to horizontally move away from the central plate 110 through the inclined wedge cooperation method until the side plates 120 cooperate with the clamping block 243 inside the side wall 310 to clamp the side wall 310. There is a gap between the L-shaped avoidance portion 123 provided on the side plate 120 and the undercut 311, facilitating the tool to extend into the port of the undercut 311 for milling the undercut 311. The size of the working area of the upper die assembly 100 can be adjusted and changed. When the size of the working area is small, it is convenient to clamp the upper die assembly 100 inside the C-piece 300, and the mold closing is fast and easy without interference. After entering the C-piece 300, the size of the working area is enlarged by expanding the side plates 120. Finally, the side plates 120 and the clamping block 243 cooperate to support the side wall 310, enhancing the strength of the side wall 310 to be milled and reducing the occurrence of deformation. Second, the clamping block clamped on the outside of the side wall 310 of the C-piece 300 is provided with a plurality of chip removal grooves 2431, which are used to discharge metal chips during the processing, without affecting the support strength and avoiding chip accumulation at the contact position of the side wall 310, thereby scratching the product.

[0044] The above is only the embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made by using the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, is equally within the patent protection scope of the present invention.

Claims

1. A jig for milling C parts of a notebook, characterized in that: include: An upper mold assembly, the upper mold assembly comprising a center plate, a plurality of side plates distributed one by one around the center plate and movably connected to the center plate, and a plurality of return mechanisms disposed at the upper end of the center plate and connected one by one to the side plates, wherein the plurality of side plates can enclose a working area having a size smaller than that of the C-piece port; A lower mold assembly, the lower mold assembly cooperates with the upper mold assembly and is located below the upper mold assembly, the lower mold assembly includes a bottom plate for carrying the C piece, a first positioning pin and a second positioning pin provided at the upper end of the bottom plate, a plurality of clamping mechanisms provided outside the bottom plate and capable of surrounding the C piece, and a driving mechanism provided at the lower end of the bottom plate and detachably connected to the center plate; The first positioning pin is used to position the C part on the bottom plate, and the second positioning pin is used to position the upper mold assembly at the upper end of the C part. When the upper mold assembly enters the C part port, the driving mechanism can drive the center plate to move toward the direction close to the lower mold assembly, thereby driving the side plate to move toward the direction away from the center plate, so that all the side plates can cooperate with the clamping mechanism located on the outer side of the C part side wall on the inner side of the C part side wall to clamp the C part; when the upper mold assembly is separated from the lower mold assembly, the return mechanism can drive the side plate to return.

2. The jig for milling the notebook C part according to claim 1, characterized in that: The two side end faces of the side panels are inclined end faces, and an avoidance gap is formed between the inclined end faces of each two adjacent side panels; the cross-sectional area of ​​the first end of the side panel is larger than the cross-sectional area of ​​the second end, the first end of the side panel has two spaced-apart inclined wedges, the second end of the side panel is a clamping end that cooperates with the clamping mechanism, and each clamping end of the side panel is provided with an L-shaped avoidance portion, and the end faces of the clamping ends of all the side panels can enclose a working area that cooperates with the clamping mechanism for clamping the side wall of the C component; A sliding groove slidably matched with the bevel portion is provided at a position of the center plate corresponding to the bevel portion.

3. The jig for milling the notebook C part according to claim 2, characterized in that: The first end surface of the side plate is defined as a first bevel surface, and the bevel portion includes a first convex portion horizontally extending from the first bevel surface in a direction away from the first bevel surface, and two second convex portions extending from the side wall of the first convex portion in a direction away from the first convex portion and symmetrically arranged, the second convex portion is parallel to the side plate in a top view orthographic projection plane, the end surface of the second convex portion facing the first bevel surface is defined as a second bevel surface, the first bevel surface, a part of the side wall of the first convex portion and the second bevel surface can be combined to form a U-shaped bevel groove; the end surface of the second convex portion facing away from the first bevel surface is defined as a third bevel surface, the third bevel surface and a part of the side wall of the first convex portion can form an L-shaped matching portion, the end surface of the first convex portion facing away from the first bevel surface is defined as a fourth bevel surface, and the two ends of the fourth bevel surface are respectively adjacent to the two L-shaped matching portions.

4. The jig for milling the notebook C part according to claim 3 is characterized in that: The return mechanisms each include two return springs which are respectively arranged at the upper ends of the two bevel parts in a one-to-one correspondence, and a fixing block which is arranged at the upper ends of the two return springs, and the fixing block is screwed to the center plate through bolts.

5. The jig for milling the notebook C part according to claim 3, characterized in that: The outer side wall of the center plate is a fifth bevel surface that cooperates with the first bevel surface. The slide groove is recessed from the fifth bevel surface away from the fifth bevel surface and vertically penetrates the center plate. The shape of the slide groove is adapted to the bevel portion.

6. The jig for milling the notebook C part according to claim 1, characterized in that: The center plate is connected to two spaced-apart and symmetrically arranged pads via a rotating shaft, and each pad is provided with a locking notch that vertically penetrates the pad. The two locking notches are respectively and one by one detachably connected to a driving mechanism, and when the driving mechanism is connected to the locking notch, the upper mold assembly can be locked to the upper end of the lower mold assembly.

7. The jig for milling the notebook C part according to claim 6, characterized in that: The driving mechanism includes a driving unit arranged at the lower end of the base plate, a rod body connected to the driving unit at one end, and a limit block fixed to the other end of the rod body. The base plate and the center plate are both provided with through holes for the rod body to pass through, and the driving unit can drive the rod body to move up and down in the through holes. When the rod body is accommodated in the locking notch, the limit block is located above the pad to prevent the rod body from separating from the pad.

8. The jig for milling the notebook C part according to claim 1, characterized in that: The center plate is provided with a plurality of weight-reducing holes capable of penetrating the center plate, and at least two handles arranged at intervals are screwed to the upper end of the center plate.

9. The jig for milling notebook C parts according to any one of claims 1 to 8, characterized in that: The upper end of the base plate has a contoured platform protruding away from the lower end of the base plate, the shape of the contoured platform is adapted to the shape of the C piece, the first positioning pin and the second positioning pin are both distributed on the contoured platform; the lower end of the base plate is provided with a plurality of feet distributed at the corners of the base plate.

10. The jig for milling the notebook C part according to claim 9, characterized in that: The clamping mechanisms include a mounting plate arranged on the side wall of the base plate, a clamping cylinder arranged on the upper end of the mounting plate, and a clamping block connected to the clamping cylinder and cooperating with the side plate for clamping the C piece. The clamping cylinder is used to drive the clamping block to reciprocate toward or away from the profiling table. The lower end surface of the clamping block is provided with an L-shaped contact portion adapted to the base plate. The clamping end surface of the clamping block is provided with a plurality of chip grooves arranged at intervals along the length direction of the clamping block, and the chip grooves are recessed from the clamping end surface in a direction away from the clamping end surface.

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