CN111589917A - Fin structure and stamping processing equipment thereof - Google Patents
Fin structure and stamping processing equipment thereof Download PDFInfo
- Publication number
- CN111589917A CN111589917A CN202010448964.8A CN202010448964A CN111589917A CN 111589917 A CN111589917 A CN 111589917A CN 202010448964 A CN202010448964 A CN 202010448964A CN 111589917 A CN111589917 A CN 111589917A
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- plane
- aluminum sheet
- head
- bending
- driving
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- 238000005452 bending Methods 0.000 claims abstract description 105
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 97
- 229910052782 aluminium Inorganic materials 0.000 claims description 97
- 238000004080 punching Methods 0.000 claims description 44
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 241000309551 Arthraxon hispidus Species 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000005030 aluminium foil Substances 0.000 description 20
- 238000001125 extrusion Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention relates to a radiating fin structure and stamping processing equipment thereof, relating to the technical field of radiating fin processing and comprising a body and fins arranged on the body, wherein the edges of the fins close to the body are bent to form a U-shaped bent part, and the bent part is provided with clamping protrusions which are convexly deformed towards the direction far away from the edges of the bent part; the body is provided with an inserting long groove which is in inserting fit with the bent part, and the inner wall of the inserting long groove is provided with a clamping inner groove which is used for accommodating the clamping protrusion when the bent part is inserted into the inserting long groove; the bending part is tightly propped against the inner wall of the long plugging groove. The invention has the effect of conveniently replacing the fins and is beneficial to ensuring the maintenance cost of the radiating fins.
Description
Technical Field
The invention relates to the technical field of radiating fin processing, in particular to a radiating fin structure and stamping processing equipment thereof.
Background
The radiating fin is a device for radiating heat of electronic elements which are easy to generate heat in electric appliances, and is made of aluminum alloy, copper and the like, and is made into plate shape, sheet shape, multi-sheet shape and the like, for example, a CPU (central processing unit) in a computer needs to use a relatively large radiating fin, and power tubes, row tubes and power amplifier tubes in a television set need to use radiating fins. Generally, a layer of heat-conducting silicone grease is coated on the contact surface of an electronic component and a heat sink when the heat sink is in use, so that heat emitted by the component is more effectively conducted to the heat sink and then dissipated to the ambient air through the heat sink. The traditional Chinese patent with publication number CN105377004A discloses a radiating fin, which comprises a radiating fin body and a plurality of heat conducting fins, wherein each heat conducting fin is provided with a fin bottom end and a fin top end, the fin bottom ends are positioned on the front surface of the radiating fin body and are integrally formed with the radiating fin body, grooves are arranged between a plurality of longitudinal adjacent fin bottom ends, grooves are arranged between a plurality of transverse adjacent grooves, and a bonding agent is arranged on the back surface of the radiating fin body.
The above prior art solutions have the following drawbacks: the radiating fin body and the fins are integrally formed, and if the radiating fins are damaged, the fins cannot be replaced, so that the radiating fins need to be replaced integrally, and the maintenance cost of the radiating fins is not guaranteed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a radiating fin structure and stamping processing equipment thereof, which have the effect of conveniently replacing fins and are beneficial to ensuring the maintenance cost of the radiating fin.
The above object of the present invention is achieved by the following technical solutions:
a radiating fin structure comprises a body and fins arranged on the body, wherein the edges of the fins close to the body are bent to form a U-shaped bent part, and the bent part is provided with clamping protrusions which are convexly deformed towards the direction far away from the edges of the bent part; the body is provided with an inserting long groove which is in inserting fit with the bent part, and the inner wall of the inserting long groove is provided with a clamping inner groove which is used for accommodating the clamping protrusion when the bent part is inserted into the inserting long groove; the bending part is tightly propped against the inner wall of the long plugging groove.
By adopting the technical scheme, when the fin is installed, an installer inserts the bending part of the fin into the inserting long groove on the body, so that the bending part is tightly abutted to the inner wall of the inserting long groove, and the clamping protrusion on the bending part is also embedded into the clamping inner groove on the inner wall of the inserting long groove at the moment, so that when the fin is disassembled, the installer only needs to move the fin towards one side of the bending part away from the clamping protrusion, and then the bending part on the fin is pulled out to be disassembled, the replacement is convenient, the whole radiating fin does not need to be replaced when the fin is damaged, and the maintenance cost of the radiating fin.
The stamping processing equipment of the radiating fin structure comprises a rack, a hydraulic cylinder fixed on the rack, a workbench fixed on the inner bottom surface of the rack and positioned on the lower side of the end part of a piston rod of the hydraulic cylinder, and a stamping seat fixed on the end part of the piston rod of the hydraulic cylinder; a punching head with a circular arc-shaped bottom surface is fixed on the bottom surface of the punching seat, a punching groove with a circular arc-shaped inner bottom surface is formed in the upper surface of the workbench, and the punching head and the punching groove are aligned on a horizontal plane; and the workbench is provided with a fixing component for tightly abutting against the aluminum sheet.
By adopting the technical scheme, when the aluminum sheet is arranged on the workbench, the fixing assembly is abutted against the aluminum sheet, then the hydraulic cylinder is started, the stamping seat and the stamping head are driven to move downwards, the stamping head is contacted with the upper surface of the aluminum sheet and pressed into the stamping groove, and the surface of the aluminum sheet is formed into the corrugated groove, so that the surface area of the fin is increased within the same length range, the thickness of the groove is thinner, and the heat dissipation performance of the fin is enhanced.
The present invention in a preferred example may be further configured to: the fixing assembly comprises two fixing strips fixed on the workbench, a bending head connected with the upper surface of the workbench in a sliding manner and a butting head installed on the workbench in a sliding manner, and the two fixing strips are respectively arranged on two sides of the aluminum sheet and butt against the edges of the two sides of the aluminum sheet; the bending head and the abutting head are respectively arranged on the other two sides of the aluminum sheet, the workbench is provided with an elastic part for driving the abutting head to abut against the edge of the aluminum sheet, and a driving part for driving the bending head to move towards the aluminum sheet is arranged between the stamping seat and the workbench; the bending head is arranged in parallel with the edge of the aluminum sheet close to the bending head, the surface of the bending head close to the aluminum sheet is provided with bending grooves penetrating through the end faces of two ends of the bending head, the bending grooves are communicated with the bottom surface of the bending head, and the inner side wall of the bending head is provided with an inclined guide plane and an arc guide plane which are sequentially arranged from bottom to top; the lower side edge of the inclined guide plane is flush with the bottom surface of the bending head, and the inclined guide plane is arranged in an upward inclined manner; the lower side edge of the arc guide surface is connected with the upper side edge of the inclined guide plane, the upper side edge of the arc guide surface is connected with the top surface in the bending groove, and the arc guide surface is sunken in the direction far away from the aluminum sheet.
Through adopting above-mentioned technical scheme, when the aluminium foil sets up on the workstation, aluminium foil both sides edge offsets with two fixed strips, and elastic part drive butt head offsets with one side edge of aluminium foil another direction, then the pneumatic cylinder starts, the drive punching press seat moves down, make the punching press head stamp out the recess of wave form on the aluminium foil, and when the punching press seat moves down, drive bending head moves towards the aluminium foil, thereby make aluminium foil edge slide the slope guide plane in the bending inslot in proper order, circular arc guide surface and bending inslot top surface, make the edge of this side of aluminium foil bend and form bending portion, accomplish the processing of the wave form recess of fin and flexion simultaneously, high machining efficiency.
The present invention in a preferred example may be further configured to: the bottom surface of the stamping seat is fixedly provided with a convex column, the upper surface of the workbench is provided with a forming groove horizontally aligned with the convex column, and the forming groove is arranged on one side of the bending head close to the aluminum sheet.
Through adopting above-mentioned technical scheme, when the punching press seat moved down, the punching press seat drove the projection and moves down, and projection lower extreme contact aluminium foil and extrusion aluminium foil get into the shaping inslot to it is protruding to form the joint on the aluminium foil, in addition, can also make the aluminium foil be close to a side edge perk a little of turning over the elbow when projection extrusion aluminium foil, and the aluminium foil edge of being convenient for is bent into the flexion.
The present invention in a preferred example may be further configured to: the elastic part comprises a fixed frame fixed on the workbench, a sliding rod horizontally penetrating through the fixed frame and connected with the fixed frame in a sliding manner, and an extension spring sleeved on the sliding rod, the length direction of the sliding rod is horizontal and is vertical to the edge of the aluminum sheet close to the abutting head, and the end part of the sliding rod close to the aluminum sheet is fixed with the side wall of the abutting head far away from the aluminum sheet; the fixing frame is arranged on one side, far away from the aluminum sheet, of the abutting joint, and two ends of the extension spring are fixed with the abutting joint and the fixing frame respectively.
By adopting the technical scheme, when the extension spring extends, the abutting head receives the driving action of the extension spring and abuts against the edge of the aluminum sheet, and when the aluminum sheet is stamped by the stamping head, the edge of the aluminum sheet close to the abutting head contracts, and at the moment, the extension spring drives the abutting head to continue abutting against the edge of the aluminum sheet, so that the aluminum sheet is more stable.
The present invention in a preferred example may be further configured to: the driving part comprises a driving column fixed at the bottom of the punching seat and a driving block fixed on the bending head, and the lower end of the driving column is hemispherical; the driving block is arranged on one side, away from the aluminum sheet, of the bending head, a driving plane matched with the lower end of the driving column in a sliding mode is arranged on the driving block, and the edge, close to the aluminum sheet, of the driving plane is higher than the edge, away from the aluminum sheet, of the driving plane.
By adopting the technical scheme, when the stamping seat moves downwards, the stamping seat drives the driving column to move downwards, so that the lower end of the driving column is in contact with the driving plane on the driving block and slides along the driving plane.
The present invention in a preferred example may be further configured to: a connecting block which is attached to the bottom surface of the stamping seat is fixed at the top of the driving column, a plurality of adjusting holes are formed in the bottom surface of the stamping seat, and the adjusting holes are uniformly arranged along the moving direction of the bending head; a fastening bolt is arranged on the connecting block, the end part of the fastening bolt vertically penetrates through the connecting block and penetrates into the adjusting hole on the upper side of the connecting block, and the fastening bolt is in threaded fit with the inner wall of the adjusting hole; the driving plane is provided with a plurality of positions on the driving block, the inclination angles of the plurality of driving planes are different, and the plurality of driving planes are arranged along the moving direction of the bending head and are respectively positioned at the lower side of the adjusting hole.
Through adopting above-mentioned technical scheme, when fastening bolt screwed, the connecting block compresses tightly with the punching press seat bottom surface, make the drive post fixed with the punching press seat, and the regulation hole is equipped with many places, when the different regulation holes of fastening bolt screw in, the position of drive post is different and corresponds different drive planes respectively, and the planar inclination of different drive is different, so the drive post drive is rolled over elbow horizontal migration's effort and is different, and the removal stroke of rolling over the elbow is also different, the adjustability of drive division has been improved.
The present invention in a preferred example may be further configured to: the driving plane is divided into a first plane, a second plane and a third plane which are sequentially connected from high to low, the first plane, the second plane and the third plane are sequentially arranged from the direction close to the aluminum sheet to the direction far away from the aluminum sheet, and the included angles between the first plane, the second plane and the third plane and the horizontal plane are sequentially decreased; when the driving column is sequentially in sliding contact with the first plane, the second plane and the third plane, the aluminum sheet is sequentially in sliding contact with the corresponding inclined guide plane, the corresponding arc guide plane and the corresponding inner top surface of the bending groove.
By adopting the technical scheme, when the driving column is driven to move downwards by the stamping seat, the lower end of the driving column sequentially slides through the first plane, the second plane and the third plane, so that the edge of the aluminum sheet sequentially slides through the inclined guide plane, the arc guide plane and the bending groove inner top surface, and the extrusion acting force of the bent part formed by bending the edge of the aluminum sheet is different in size.
In summary, the invention includes at least one of the following beneficial technical effects:
when the fin is installed, an installer inserts the bending part of the fin into the inserting long groove on the body to enable the bending part to be abutted against the inner wall of the inserting long groove, and the clamping protrusion on the bending part is also embedded into the clamping inner groove on the inner wall of the inserting long groove, so that when the fin is disassembled, the installer only needs to stir the fin towards one side of the bending part, which is far away from the clamping protrusion, and then the fin can be disassembled by pulling out the bending part on the fin, the replacement is convenient, the whole radiating fin does not need to be replaced when the fin is damaged, and the maintenance cost of the;
when the aluminum sheet is arranged on the workbench, the fixing assembly abuts against the aluminum sheet, then the hydraulic cylinder is started, the stamping seat and the stamping head are driven to move downwards, the stamping head is enabled to be in contact with the upper surface of the aluminum sheet and pressed into the stamping groove, and therefore the surface of the aluminum sheet is provided with the corrugated grooves, the surface area of the fin is enlarged within the same length range, the thickness of each groove is thinner, and the heat dissipation performance of the fin is enhanced;
when the aluminum sheet is arranged on the workbench, two side edges of the aluminum sheet are abutted against the two fixing strips, the elastic part drives the abutting head to abut against one side edge of the aluminum sheet in the other direction, then the hydraulic cylinder is started, the stamping seat is driven to move downwards, so that the stamping head stamps a corrugated groove on the aluminum sheet, and when the stamping seat moves downwards, the driving part drives the bending head to move towards the aluminum sheet, so that the edge of the aluminum sheet sequentially slides through an inclined guide plane, an arc guide plane and a top surface in a bending groove, the edge of the side of the aluminum sheet is bent to form a bent part, the processing of the corrugated groove and the bent part of the fin is completed simultaneously, and the processing efficiency is high.
Drawings
Fig. 1 is a schematic structural view of a heat sink.
FIG. 2 is a schematic view of the structure of the inner clamping groove.
Fig. 3 is a schematic structural view of a press working apparatus of a fin structure.
Fig. 4 is a schematic structural diagram of a workbench.
Fig. 5 is an enlarged schematic view at a in fig. 3.
Fig. 6 is an enlarged schematic view at B in fig. 4.
Reference numerals: 11. a body; 111. long splicing grooves; 112. clamping the inner groove; 12. a fin; 121. a wave-shaped groove; 122. a bending section; 123. clamping the bulges; 2. a frame; 3. a hydraulic cylinder; 4. a work table; 41. punching a groove; 42. a sliding groove; 421. a slider; 422. a retraction spring; 43. forming a groove; 5. punching a seat; 51. punching a head; 52. an adjustment hole; 53. a convex column; 6. a fixing assembly; 61. a fixing strip; 62. bending the elbow; 621. bending the groove; 622. inclining the guide plane; 623. a circular arc guide surface; 63. a butting head; 7. an elastic portion; 71. a fixed mount; 72. a slide bar; 73. extending the spring; 8. a drive section; 81. a drive column; 811. connecting blocks; 812. fastening a bolt; 82. a drive block; 821. a drive plane; 822. a first plane; 823. a second plane; 824. a third plane.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1, the heat sink structure disclosed in the present invention includes a body 11 and a plurality of fins 12 disposed on the body 11. The body 11 is in a rectangular plate shape, the length direction of the body is horizontal, the upper surface of the body 11 is provided with an inserting long groove 111, the opening of the inserting long groove 111 is in a rectangular strip shape, the length direction of the inserting long groove 111 is perpendicular to the length direction of the body 11, the inserting long groove 111 is provided with a plurality of positions, and the inserting long grooves 111 are uniformly arranged along the length direction of the body 11. As shown in fig. 2, an inner side wall of one side of the insertion elongated slot 111 parallel to the length direction thereof is provided with an inner clamping groove 112, an inner wall of the inner clamping groove 112 is arc-shaped, and an opening of the inner clamping groove 112 is circular. The fin 12 is in a rectangular sheet shape, is made of an aluminum sheet by stamping, is vertically arranged, and has a surface bulging and deforming towards one side to form a plurality of waveform grooves 121, the length direction of the waveform grooves 121 is parallel to the length direction of the upper side of the fin 12, and the cross section of the waveform grooves 121 is in a circular arc shape. The plurality of wave-shaped grooves 121 are formed in the fin 12, and the plurality of wave-shaped grooves 121 are uniformly arranged in the vertical direction.
Referring to fig. 2, the lower side of the fin 12 is bent to form a bent portion 122, and the bent portion 122 has a U-shaped cross section, and the longitudinal direction of the bent portion 122 is parallel to the upper side of the fin 12. The side wall of the connecting fin 12 of the bending part 122 bulges and deforms towards the direction far away from the edge of the bending part 122 to form a clamping protrusion 123, and the clamping protrusion 123 is in a circular convex shape.
The implementation principle of the embodiment is as follows: when the fin 12 is installed, an installer inserts the bending portion 122 of the fin 12 into the insertion long groove 111 on the body 11, so that the bending portion 122 abuts against the inner wall of the insertion long groove 111, and the clamping protrusion 123 on the bending portion 122 is also embedded into the clamping inner groove 112 on the inner wall of the insertion long groove 111, so that the fin 12 is fixed with the body 11, when the fin 12 is detached, the installer only needs to pull the fin 12 towards one side of the bending portion 122, which is far away from the clamping protrusion 123, and then pull out the bending portion 122 on the fin 12, so that the fin can be detached, the replacement is convenient, the whole fin 12 does not need to be replaced when being damaged, and the maintenance cost of.
Example 2:
referring to fig. 3, the stamping device for a heat sink structure disclosed by the present invention includes a frame 2, a hydraulic cylinder 3, a table 4 and a stamping seat 5, wherein the frame 2 is a frame 2 structure with a U-shaped vertical cross section, two ends of the frame horizontally face the same direction, the hydraulic cylinder 3 is an existing linear driving device, the hydraulic cylinder 3 is arranged on the frame 2 and fixed with an upper surface of the frame 2, and an end of a piston rod of the hydraulic cylinder 3 vertically penetrates through the upper surface of the frame 2 and an inner top surface of the frame 2 in sequence and is located in the frame 2. The table 4 is rectangular table-shaped and is provided in the frame 2, and the bottom surface of the table 4 is fixed to the inner bottom surface of the frame 2, and the table 4 is provided below the end of the piston rod of the hydraulic cylinder 3. Referring to fig. 4, a stamping groove 41 is formed in the upper surface of the working table 4, an opening of the stamping groove 41 is in a bar shape, the length direction of a notch of the stamping groove 41 is perpendicular to the inner side wall of the rack 2, a plurality of stamping grooves 41 are formed, and the plurality of stamping grooves 41 are arranged in parallel and are uniformly arranged along the width direction of the opening. The punching seat 5 is of a rectangular seat structure, the punching seat 5 is arranged in the frame 2 and is positioned on the upper side of the workbench 4, and the upper surface of the punching seat 5 is fixed with the end part of the piston rod of the hydraulic cylinder 3. The bottom of the stamping seat 5 is provided with a stamping head 51, the stamping head 51 is strip-shaped, the length direction of the stamping head 51 is consistent with the length direction of the notch of the stamping groove 41, the cross section of the stamping head 51 is rectangular, and in addition, the bottom surface of the stamping head 51 is arched. The upper surface of the punching head 51 is fixed with the bottom surface of the punching seat 5, a plurality of punching heads 51 are provided, the plurality of punching heads 51 correspond to the plurality of punching grooves 41 respectively, and the horizontal projections of the plurality of punching heads 51 fall into the plurality of punching grooves 41 respectively. Referring to fig. 2, when the aluminum foil is placed on the table 4, the hydraulic cylinder 3 is actuated to drive the punching seat 5 and the punching head 51 to move downward, so that the punching head 51 contacts the upper surface of the aluminum foil and presses into the punching groove 41, and the corrugated groove 121 is formed on the surface of the aluminum foil, thereby increasing the surface area of the fin 12 in the same length range, and the corrugated groove 121 has a thinner thickness, which enhances the heat dissipation performance of the fin 12.
Referring to fig. 3, the table 4 is provided with a fixing assembly 6, an elastic portion 7 and a driving portion 8, the fixing assembly 6 includes two fixing strips 61, a bending head 62 and a contact head 63, the fixing strips 61, the bending head 62 and the contact head 63 are arranged around the four edges of the aluminum sheet on the table 4, the two fixing strips 61 are respectively arranged outside the two opposite side edges of the aluminum sheet, and the bending head 62 and the contact head 63 are respectively arranged outside the two opposite side edges of the aluminum sheet. The fixed strip 61 is the strip structure that the cross-section is the rectangle, and the length direction of fixed strip 61 is parallel with one side edge that the aluminium foil is close to it, and fixed strip 61 bottom surface and workstation 4 upper surface are fixed, and the lateral wall that two fixed strips 61 are close to each other offsets with aluminium foil both sides edge respectively, has restricted aluminium foil's skew. The abutting head 63 is in the shape of a long beam, the cross section of which is rectangular, and the length direction of the abutting head 63 is parallel to one side edge of the aluminum sheet far away from the bending head 62. As shown in fig. 5, the elastic portion 7 includes a fixing frame 71, a sliding rod 72 and an extension spring 73, the fixing frame 71 is rectangular, the fixing frame 71 is vertically disposed on a side of the abutting head 63 away from the aluminum sheet, a bottom surface of the fixing frame 71 is fixed to an upper surface of the working table 4, and a plate surface of the fixing frame 71 is parallel to a length direction of the abutting head 63. The sliding rod 72 is a rod-shaped structure with a circular cross section, the length direction of the sliding rod 72 is horizontal and vertical to the plate surface of the fixed frame 71, the sliding rod 72 penetrates through the fixed frame 71 and is in sliding fit with the fixed frame, one end of the sliding rod 72 is fixed with the side wall, close to the fixed frame 71, of the abutting head 63, and a circular limiting block is fixed at the other end of the sliding rod, so that the abutting block is in sliding connection with the workbench 4. The extension spring 73 is sleeved on the sliding rod 72, one end of the extension spring 73 is fixed to the side wall of the abutting head 63 close to the fixing frame 71, and the other end of the extension spring 73 is fixed to the plate surface of the fixing frame 71 close to the abutting head 63.
Referring to fig. 3 and 4, the bending head 62 is a strip-shaped structure made of a steel bar with a rectangular cross section, the bending head 62 is disposed in parallel with the edge of the aluminum sheet close to the bending head 62, and a bending groove 621 communicating with the bottom surface of the bending head 62 is formed on the side wall of the bending head 62 close to the aluminum sheet. Two ends of the bending groove 621 are communicated with two end faces of the bending head 62, and an inclined guide plane 622 and an arc guide plane 623 are sequentially arranged on the inner side wall of the bending groove 621 from bottom to top. The inclined guide plane 622 is an inclined rectangular surface which is inclined upward, the inclined guide plane 622 extends along the length direction of the bending head 62, and the lower side edge of the inclined guide plane 622 coincides with the bottom surface of the bending head 62. The section of the arc guide surface 623 perpendicular to the length direction of the bending head 62 is arc-shaped, the arc guide surface 623 is recessed towards the bending groove 621, the lower side edge of the arc guide surface 623 is connected with the upper side edge of the inclined guide plane 622, and the upper side edge of the arc guide surface 623 is connected with the inner top surface of the bending groove 621. The sliding groove 42 is formed in the upper surface of the workbench 4, the sliding groove 42 is a dovetail groove, the length direction of the sliding groove is perpendicular to the length direction of the bending head 62, the sliding groove 42 is connected with the sliding block 421 in a sliding mode, the sliding block 421 is in a dovetail shape and is blocky, and the upper surface of the sliding block 421 is fixed to the bottom surface of the bending head 62, so that the bending head 62 is connected with the upper surface of the workbench 4 in a sliding mode. Still be equipped with shrink spring 422 in the sliding tray 42, shrink spring 422's axis is parallel with the length direction of sliding tray 42, and shrink spring 422 one end is fixed with the lateral wall that slider 421 is close to the aluminium foil, and the other end is fixed with the one end inside wall that sliding tray 42 is close to the aluminium foil, and when the aluminium foil set up on workstation 4, shrink spring 422 shrink, drives and rolls over elbow 62 and offset with the aluminium foil, and at this moment, bending head 62 is initial position.
Referring to fig. 3 and 4, the driving portion 8 includes a driving column 81 and a driving block 82, the driving column 81 is vertically disposed between the stamping seat 5 and the bending head 62, a horizontal cross section of the driving column 81 is circular, an upper end surface of the driving column 81 is attached to a bottom surface of the stamping seat 5, and a lower end of the driving column 81 is hemispherical. As shown in fig. 6, the driving column 81 is provided at the upper end thereof with a connecting block 811 and a fastening bolt 812, the connecting block 811 is rectangular and fixed to the side wall of the driving column 81 at one side edge thereof, and the upper surface of the connecting block 811 is attached to the bottom surface of the press seat 5. Adjusting hole 52 has been seted up to punching press seat 5 bottom surface, adjusting hole 52's opening is circularly, adjusting hole 52 is equipped with many places, many places adjusting hole 52 is along the moving direction align to grid of dog-ear 62, and the vertical run-through connection piece 811 up of fastening bolt 812 tip penetrates in the adjusting hole 52 of connecting block 811 upside, fastening bolt 812 and the 52 inside wall screw-thread fit in adjusting hole, when fastening bolt 812 screws, connecting block 811 compresses tightly with 5 bottom surfaces of punching press seat, thereby make actuating column 81 and 5 bottom surfaces of punching press seat fixed. The connecting blocks 811, the fastening bolts 812 and the adjusting holes 52 are provided in two sets, and the two sets of the connecting blocks 811, the fastening bolts 812 and the adjusting holes 52 are respectively provided on both sides of the driving column 81. The driving block 82 is arranged on one side, far away from the aluminum sheet, of the bending head 62, the length direction of the driving block 82 is consistent with that of the bending head 62, the section of the driving block 82 is in a right triangle shape, the vertical side wall of the driving block 82 is fixed with the side wall, far away from the aluminum sheet, of the bending head 62, the inclined surface of the driving block 82 is cut and polished to form three driving planes 821 which are connected with each other, the driving planes 821 sequentially comprise a first plane 822, a second plane 823 and a third plane 824 which are connected with each other from top to bottom, the first plane 822, the second plane 823 and the third plane 824 are sequentially arranged in the direction from the position close to the aluminum sheet to the position far away from the aluminum sheet, the included angle between the first plane 822 and the horizontal plane is 75 degrees, the included angle between the second plane 823 and the horizontal plane is 60 degrees, and the. The horizontal projection of the driving post 81 falls on the first plane 822, and when the fastening bolt 812 is screwed into the adjustment hole 52 on the left side of the driving post 81, the horizontal projection of the driving post 81 falls on the second plane 823 and the third plane 824 in turn. When the punching seat 5 moves downwards, the lower end of the driving column 81 sequentially slides across the first plane 822, the second plane 823 and the third plane 824, so that the edge of the aluminum sheet sequentially slides across the inclined guide plane, the circular arc guide plane 623 and the inner top surface of the bending groove 621, and the extrusion force of the bending part 122 formed by bending the edge of the aluminum sheet and bent by the bending head 62 is sequentially reduced according to the bending condition of the aluminum sheet.
Referring to fig. 3 and 4, the bottom of the stamping seat 5 is further provided with a convex column 53, the convex column 53 is a cylindrical structure and is vertically arranged, and the upper end of the convex column 53 is fixedly installed on the bottom surface of the stamping seat 5. The forming groove 43 is further formed in the upper surface of the workbench 4, the forming groove 43 is arranged on one side of the bending head 62 close to the aluminum sheet, the opening of the forming groove 43 is circular, the inner bottom surface of the forming groove 43 is downwards sunken to be hemispherical, and in addition, the axis of the forming groove 43 coincides with the axis of the convex column 53. When the punching seat 5 moves down, the punching seat 5 drives the convex column 53 to move down, the lower end of the convex column 53 contacts with the aluminum sheet and extrudes the aluminum sheet to enter the forming groove 43, so that the clamping protrusion 123 is formed on the aluminum sheet, in addition, when the convex column 53 extrudes the aluminum sheet, one side edge of the aluminum sheet close to the bending head 62 is slightly tilted, and the edge of the aluminum sheet is convenient to bend into the bending part 122.
The implementation principle of the embodiment is as follows: when the aluminum sheet is arranged on the workbench 4, the periphery of the aluminum sheet is abutted by the fixing strips 61, the abutting heads 63 and the bending heads 62, then the hydraulic cylinder 3 is started, the stamping seat 5 and the stamping head 51 are driven to move downwards, so that the stamping head 51 is contacted with the upper surface of the aluminum sheet and pressed into the stamping groove 41, and a wave-shaped groove is formed on the surface of the aluminum sheet, so that the surface area of the fin 12 is increased in the same length range, the thickness of the groove is thinner, and the heat dissipation performance of the fin 12 is enhanced; in addition, when the punching seat 5 moves downwards, the driving column 81 moves downwards along with the driving column, until the lower end of the driving column 81 sequentially slides over the first plane 822, the second plane 823 and the third plane 824, so that the edge of the aluminum sheet sequentially slides over the inclined guide plane, the arc guide plane 623 and the inner top surface of the bending groove 621, so that the edge of the aluminum sheet on the side is bent to form the bent portion 122, and meanwhile, the punching seat 5 also drives the protruding column 53 to move downwards, the lower end of the protruding column 53 contacts with the aluminum sheet and presses the aluminum sheet to enter the forming groove 43, so that the clamping protrusion 123 is formed on the aluminum sheet, and meanwhile, the processing of the waveform groove 121, the bent portion 122 and the clamping protrusion 123 of the fin 12 is completed, and the processing efficiency is high.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A heat sink structure, includes body (11) and sets up fin (12) on body (11), its characterized in that: the edge of the fin (12) close to the body (11) is bent to form a U-shaped bent part (122), and a clamping protrusion (123) which protrudes and deforms towards the direction far away from the edge of the bent part (122) is arranged on the bent part (122); the body (11) is provided with an inserting long groove (111) which is matched with the bending part (122) in an inserting manner, and the inner wall of the inserting long groove (111) is provided with a clamping inner groove (112) which is used for accommodating the clamping protrusion (123) when the bending part (122) is inserted into the inserting long groove (111); the bending part (122) is tightly propped against the inner wall of the inserting long groove (111).
2. The press working apparatus of a fin structure according to claim 1, wherein: the stamping device comprises a rack (2), a hydraulic cylinder (3) fixed on the rack (2), a workbench (4) fixed on the inner bottom surface of the rack (2) and positioned on the lower side of the end part of a piston rod of the hydraulic cylinder (3), and a stamping seat (5) fixed on the end part of the piston rod of the hydraulic cylinder (3); a punching head (51) with a circular arc-shaped bottom surface is fixed on the bottom surface of the punching seat (5), a punching groove (41) with a circular arc-shaped inner bottom surface is formed in the upper surface of the workbench (4), and the punching head (51) is aligned with the punching groove (41) on the horizontal plane; and a fixing component (6) for tightly abutting against the aluminum sheet is arranged on the workbench (4).
3. The press working apparatus of a fin structure according to claim 2, wherein: the fixing assembly (6) comprises two fixing strips (61) fixed on the workbench (4), a bending head (62) connected with the upper surface of the workbench (4) in a sliding manner and a butting head (63) installed on the workbench (4) in a sliding manner, and the two fixing strips (61) are respectively arranged on two sides of the aluminum sheet and butt against the edges of the two sides of the aluminum sheet; the bending head (62) and the abutting head (63) are respectively arranged on the other two sides of the aluminum sheet, an elastic part (7) for driving the abutting head (63) to abut against the edge of the aluminum sheet is arranged on the workbench (4), and a driving part (8) for driving the bending head (62) to move towards the aluminum sheet is arranged between the stamping seat (5) and the workbench (4); the bending head (62) is arranged in parallel with the edge of the aluminum sheet close to the bending head, the surface of the bending head (62) close to the aluminum sheet is provided with bending grooves (621) penetrating through the end faces of two ends of the bending head (62), the bending grooves (621) are communicated with the bottom surface of the bending head (62), and the inner side wall of the bending head (62) is provided with an inclined guide plane (622) and an arc guide plane (623) which are sequentially arranged from bottom to top; the lower side edge of the inclined guide plane (622) is flush with the bottom surface of the folding elbow (62), and the inclined guide plane (622) is obliquely arranged upwards; the lower side edge of the arc guide surface (623) is connected with the upper side edge of the inclined guide plane (622), the upper side edge of the arc guide surface (623) is connected with the inner top surface of the bending groove (621), and the arc guide surface (623) is concave in the direction far away from the aluminum sheet.
4. The press working apparatus of a fin structure according to claim 3, wherein: the aluminum sheet stamping device is characterized in that a convex column (53) is fixed on the bottom surface of the stamping seat (5), a forming groove (43) which is horizontally aligned with the convex column (53) is formed in the upper surface of the workbench (4), and the forming groove (43) is formed in one side, close to an aluminum sheet, of the bending head (62).
5. The press working apparatus of a fin structure according to claim 3, wherein: the elastic part (7) comprises a fixed frame (71) fixed on the workbench (4), a sliding rod (72) horizontally penetrating through the fixed frame (71) and connected with the fixed frame in a sliding manner, and an extension spring (73) sleeved on the sliding rod (72), wherein the length direction of the sliding rod (72) is horizontal and vertical to the edge of the aluminum sheet close to the abutting head (63), and the end part of the sliding rod (72) close to the aluminum sheet is fixed with the side wall of the abutting head (63) far away from the aluminum sheet; the fixing frame (71) is arranged on one side, away from the aluminum sheet, of the abutting joint head (63), and two ends of the extension spring (73) are fixed with the abutting joint head (63) and the fixing frame (71) respectively.
6. The press working apparatus of a fin structure according to claim 3, wherein: the driving part (8) comprises a driving column (81) fixed at the bottom of the punching seat (5) and a driving block (82) fixed on the bending head (62), and the lower end of the driving column (81) is hemispherical; the driving block (82) is arranged on one side, away from the aluminum sheet, of the bent head (62), a driving plane (821) in sliding fit with the lower end of the driving column (81) is formed in the driving block (82), and the edge, close to the aluminum sheet, of the driving plane (821) is higher than the edge, away from the aluminum sheet, of the driving plane (821).
7. The press working apparatus of a fin structure according to claim 6, wherein: a connecting block (811) which is attached to the bottom surface of the stamping seat (5) is fixed to the top of the driving column (81), a plurality of adjusting holes (52) are formed in the bottom surface of the stamping seat (5), and the adjusting holes (52) are uniformly arranged along the moving direction of the bending head (62); a fastening bolt (812) is arranged on the connecting block (811), the end part of the fastening bolt (812) vertically penetrates through the connecting block (811) and penetrates into the adjusting hole (52) on the upper side of the connecting block (811), and the fastening bolt (812) is in threaded fit with the inner wall of the adjusting hole (52); the driving plane (821) is provided with a plurality of positions on the driving block (82), the inclination angles of the plurality of driving planes (821) are different, and the plurality of driving planes (821) are arranged along the moving direction of the bending head (62) and are respectively positioned at the lower side of the adjusting hole (52).
8. The press working apparatus of a fin structure according to claim 6, wherein: the driving plane (821) is divided into a first plane (822), a second plane (823) and a third plane (824) which are sequentially connected from top to bottom, the first plane (822), the second plane (823) and the third plane (824) are sequentially arranged from the position close to the aluminum sheet to the position far away from the aluminum sheet, and included angles between the first plane (822), the second plane (823) and the third plane (824) and the horizontal plane are sequentially reduced; when the driving column (81) is in sliding contact with the first plane (822), the second plane (823) and the third plane (824), the aluminum sheet is in sliding contact with the inclined guide plane (622), the arc guide plane (623) and the inner top surface of the bending groove (621) correspondingly.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035543A (en) * | 2021-02-26 | 2021-06-25 | 徐宾 | Manufacturing process of oil tank shell of oil-immersed transformer |
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| CN111589917B (en) | 2021-03-26 |
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Effective date of registration: 20240124 Address after: 518000 Buildings 1 to 4 (East A, 1st Floor, Building 1), A-6 Industrial Zone, Tongfuyu Industrial Park, Shajing, Baoan District, Shenzhen, Guangdong, China Patentee after: SHENZHEN FENGXIANGDA TECHNOLOGY Co.,Ltd. Country or region after: China Address before: Building 516-8000, Fuyu Industrial Park, No.1, Tongan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen weiding Precision Hardware Co.,Ltd. Country or region before: China |
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