Mobile phone heat dissipation copper pipe pre-flattening device and flattening method thereof

Abstract

The invention discloses a mobile phone heat dissipation copper pipe pre-flattening device and a flattening method thereof, and relates to the field of metal pipe machining, the mobile phone heat dissipation copper pipe pre-flattening device comprises a fixed forming block, a supporting frame for lifting the fixed forming block is fixedly arranged at the bottom of the fixed forming block, and the fixed forming block is rectangular; according to the copper pipe flattening device, multi-point-position negative pressure limiting can be conducted on a copper pipe placed in the forming groove through the bearing limiting unit, and therefore the situation that when the copper pipe is flattened, the copper pipe is flattened, the copper pipe cannot be flattened, and the copper pipe cannot be flattened is avoided. When the flat copper pipe is pressed, the angle of the bent position of the flat copper pipe can deviate at will, so that the production precision of the flat copper pipe is affected, and in the flattening treatment process, a surface cleaning unit is triggered through a driving unit to remove particles attached to the inner surface of a forming groove, an extrusion block and the outer surface of the copper pipe; and a plurality of pits with different sizes are prevented from appearing on the surface of the copper pipe during flattening treatment.

Description

Technical Field

[0001] The invention relates to the field of metal pipe processing, in particular to a mobile phone heat dissipation copper pipe pre-flattening device and a flattening method thereof. Background Art

[0002] Heat dissipation copper tubes are commonly used heat dissipation components in mechanical equipment, especially in high-performance mobile phones and computers, where they play a major role in heat dissipation. When installing heat dissipation copper tubes in mobile phones or computers, the internal installation space must be considered. It is usually necessary to process the heat dissipation copper tubes into a flat shape to maximize the use of the installation space inside the mobile phone or computer.

[0003] The existing Chinese public document (CN214866591U) records a pre-flattening device for processing mobile phone heat dissipation copper tubes. By setting up a bending device, the problem that when the copper tube is bent, the stress point of the copper tube may be damaged due to poor protection of the bending equipment, which will affect the subsequent flattening operation of the copper tube. Once damaged, the entire copper tube may need to be abandoned, resulting in a waste of raw materials. The flattening device is then used to make the pressing plate flatten the copper tube through the "U"-shaped groove and the shape groove at the bottom, thereby realizing the operation of flattening immediately after bending, simplifying the work process and increasing work efficiency.

[0004] The copper tube flattening scheme recorded in the above-mentioned document is to place a copper tube with a certain curved shape in a mold groove of a corresponding model, and then flatten the copper tube. However, the forming width of the mold groove is greater than the outer diameter of the copper tube before being flattened. That is, when the copper tube, which is still in a round shape, is placed in the mold groove and flattened, it cannot be guaranteed that the copper tube is in the center position of the mold groove, and it is impossible to control whether the bending angle of the copper tube will change during the flattening process. Because the copper tube has good plasticity, its bending angle will change accordingly when it is flattened, but this change is uncontrollable in the above-mentioned scheme, which easily leads to the fact that the flattened copper tube cannot match the height of the position to be installed later, that is, the error during installation is large, and the bending degree of the flattened copper tube needs to be adjusted later. Summary of the invention

[0005] The purpose of the present invention is to provide a mobile phone heat dissipation copper tube pre-flattening device and a flattening method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mobile phone heat dissipation copper tube pre-flattening device, comprising: a fixed forming block, a support frame for raising the fixed forming block is fixedly arranged at the bottom of the fixed forming block, the fixed forming block is rectangular, and optical axes are fixedly arranged at four angles of the upper end surface of the fixed forming block, a top plate is fixedly arranged on the top of several optical axes, and a movable forming block is slidably mounted on the outer surfaces of several optical axes, a forming groove is opened on one end surface of the fixed forming block close to the movable forming block, and a copper tube is placed inside the forming groove, and an extrusion block slidably engaged with the forming groove is fixedly arranged at the bottom of the movable forming block; It also includes: a support and limitation unit, which is used to limit the copper tube inside the forming groove at multiple points, and the support and limitation unit is located inside the fixed forming block; A driving unit, used for driving the extrusion block to engage with the forming groove, the driving unit being located between the top plate and the movable forming block; The surface cleaning unit is used to remove particles attached to the inner surface of the forming groove, the extrusion block and the outer surface of the copper tube. The surface cleaning unit is located between the movable forming block and the fixed forming block.

[0007] Preferably, the supporting and limiting unit includes a special-shaped groove opened at the bottom of the fixed forming block, and the shape of the special-shaped groove is consistent with the shape of the forming groove, a special-shaped through tube is placed inside the special-shaped groove, and the special-shaped through tube is also consistent with the shape of the special-shaped groove, one end of the special-shaped groove is opened, and one end of the special-shaped through tube slides through the straight groove, a plurality of ventilation pipes are fixedly arranged at equal intervals on the top of the special-shaped through tube, and the ventilation pipes are connected with the special-shaped through tube, each of the ventilation pipes at one end away from the special-shaped through tube is slidably embedded in the forming groove, and the outer surface of the upper port of the ventilation pipe is fixedly covered with an arc-shaped silicone pad, the inner part of the special-shaped groove corresponds to the outer surface of each ventilation pipe, and a first spring is fixedly arranged between the end of the ring away from the special-shaped through tube and the special-shaped groove, a negative pressure component is arranged at the end of the special-shaped through tube extending out of the straight groove, and a plurality of arc-shaped silicone pads are distributed on the center line position of the forming groove.

[0008] Preferably, an accommodating groove for accommodating the arc-shaped silicone pad is provided on the inner bottom surface of the forming groove, the arc-shaped silicone pad is arc-shaped, the arc surface diameter of one end of the arc-shaped silicone pad away from the special-shaped through pipe is a, the outer diameter of the copper tube is b, and a<b. When the copper tube is placed on the arc-shaped silicone pad, the dead weight of the copper tube can expand the arc-shaped silicone pad, so that the arc-shaped silicone pad wraps the bottom of the copper tube, and the upper port of the vent pipe is in close contact with the outer surface of the copper tube.

[0009] Preferably, the negative pressure component includes a sealing cylinder fixedly suspended on the side wall of the top plate, and a second hose is fixedly connected and installed between the upper outer surface of the sealing cylinder and one end of the special-shaped through pipe extending out of the straight groove, a piston block is slidably mounted inside the sealing cylinder, and the piston block is located below the docking interface between the sealing cylinder and the second hose, a pull rod is slidably inserted at the bottom of the sealing cylinder, and a sliding plate is fixedly mounted on the top of the pull rod, a tension spring is fixedly arranged between the piston block and the sliding plate, a column is arranged on the outside of the sealing cylinder, and the upper and lower ends of the column are respectively fixedly assembled with the outer wall of the movable forming block and the bottom of the pull rod, when the movable forming block starts to move toward the fixed forming block, the piston block can be pulled downward by the pull rod, the sliding plate and the tension spring, and when the piston block moves downward, the air between the ventilation pipe and the outer wall of the copper tube can be sucked to form a negative pressure.

[0010] Preferably, a stop block is fixedly mounted on the outer surface of the column, and a raised strip is fixedly provided on the end of the stop block away from the column, the raised strip is slidably embedded in the interior of the special-shaped groove, and the raised strip abuts against the outer surface of the special-shaped through tube, and when the movable forming block is located at the topmost position, the raised strip of the stop block pushes the special-shaped through tube inside the special-shaped groove upward, thereby raising a certain distance of the several arc-shaped silicone pads, so as to facilitate the staff to place the copper tube on the several arc-shaped silicone pads.

[0011] Preferably, the driving unit includes a driving motor fixedly mounted on the top of the top plate, the upper end surface of the movable forming block is fixedly provided with a rack that slides through the top plate, the output end of the driving motor is fixedly sleeved with a transmission gear, and the transmission gear is movably engaged with the rack, wherein the driving motor is a reduction motor, and the movable forming block is moved up and down through the engagement of the transmission gear and the rack.

[0012] Preferably, the surface cleaning unit comprises two groups of swing arms distributed on both side walls of the fixed forming block and the movable forming block, each group of the swing arms has two swing arms, and the swing arms are symmetrically distributed up and down, and the ends of the two swing arms on the same side that are away from each other are respectively hinged to the fixed forming block and the movable forming block, and the facing ends of the two swing arms are fixedly installed with synchronous gears, and the two synchronous gears close to each other are movably meshed, and a hinge plate is hingedly installed between the facing ends of the two swing arms in the same group, and an end face of each swing arm close to the center of the fixed forming block Each of them is provided with an empty slot, and at least two guide rods are fixedly arranged inside the empty slot, a sliding frame is slidably sleeved between the two guide rods, and a narrow air jet pipe is fixedly installed inside the sliding frame, the nozzle of the narrow air jet pipe faces the side of the swing arm on which the synchronous gear is installed, and a second spring is fixedly arranged between the sliding frame and the bottom surface of the empty slot, and a gas injection component is arranged between each narrow air jet pipe and the swing arm, and as the spacing between the fixed forming block and the movable forming block expands or decreases, the angle between the two swing arms in the same group expands or decreases synchronously.

[0013] Preferably, the gas injection component includes an arc-shaped gas cylinder fixedly arranged on an end face of each of the swing arms away from the empty slot, and the arc-shaped gas cylinder extends in a direction away from the synchronous gear, an air hole is opened between each of the arc-shaped gas cylinder and the empty slot, and the air hole is fixedly connected to the end of the narrow air injection pipe away from the nozzle by a first hose, and an arc-shaped piston rod is slidably assembled inside each of the arc-shaped gas cylinders, and a mounting frame is fixedly arranged between one end of the arc-shaped piston rod extending out of the arc-shaped gas cylinder and the fixed forming block / the movable forming block, and when the distance between the two swing arms is reduced, the arc-shaped piston rod will be pushed into the interior of the arc-shaped gas cylinder, and the gas inside the arc-shaped gas cylinder will be transported to the interior of the narrow paint spraying air pipe.

[0014] Preferably, the guide rod and the end surface of the swing arm away from the arc-shaped air cylinder are flush, so as to avoid the guide rod hindering the fitting of two swing arms in the same group.

[0015] A flattening method for a mobile phone heat dissipation copper tube pre-flattening device, the method comprising the following steps: S1, product placement stage: place the copper tube inside the forming groove, and make the copper tube stably on the upper part of several arc-shaped silicone pads, and use several arc-shaped silicone pads to play a preliminary wrapping and supporting role for the copper tube; S2, driving stage: the driving motor drives the transmission gear and rack to drive the movable forming block to move stably toward the fixed forming block; S3, negative pressure positioning stage: when the movable forming block in S2 moves downward, the piston block and the second hose suck the inside of the special-shaped through pipe and the vent pipe, so that the air pressure between the copper pipe and the vent pipe is lower than the external atmospheric pressure, thereby achieving the negative pressure stabilization effect; S4, surface self-cleaning stage: when the movable forming block in S2 moves downward, the angle between the two swing arms in the same group decreases step by step, and the arc piston rod gradually extends into the interior of the arc cylinder, and the gas inside the arc cylinder is ejected through the narrow mouth of the narrow mouth jet pipe, thereby blowing high-speed airflow to the inner surface of the forming groove, the outer surface of the extrusion block and the copper tube to clean the particles attached to the surface.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention can perform multi-point negative pressure limitation on the copper tube placed in the forming groove through the supporting and limiting unit, so as to avoid the angle of the bending part of the copper tube being randomly offset when the copper tube is flattened, thereby affecting the production accuracy of the flat copper tube. In addition, during the flattening process, the surface cleaning unit is triggered by the driving unit to remove particles attached to the inner surface of the forming groove, the extrusion block and the outer surface of the copper tube, so as to avoid the appearance of multiple pits of different sizes on the surface of the copper tube during the flattening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the sealing cylinder of the present invention; Figure 3 It is a schematic diagram of the internal structure of the forming groove and the special-shaped groove of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the extrusion block of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7 It is a structural schematic diagram of the fixed forming block and the movable forming block of the present invention in a close state.

[0018] In the figure: 1, fixed forming block; 2, support frame; 3, optical axis; 4, movable forming block; 5, top plate; 6, driving motor; 7, transmission gear; 8, rack; 9, forming groove; 10, extrusion block; 11, copper tube; 12, first hose; 13, special-shaped groove; 14, special-shaped through pipe; 15, straight notch; 16, stop block; 17, collar; 18, arc-shaped silicone pad; 19, receiving groove; 20, ventilation pipe; 21 , first spring; 22, column; 23, sealing cylinder; 24, pull rod; 25, second hose; 26, piston block; 27, tension spring; 28, sliding plate; 29, swing arm; 30, hinge plate; 31, synchronous gear; 32, arc-shaped air cylinder; 33, arc-shaped piston rod; 34, mounting frame; 35, air hole; 36, empty slot; 37, sliding sleeve frame; 38, guide rod; 39, narrow jet pipe; 40, second spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1-Figure 5 , a mobile phone heat dissipation copper tube pre-flattening device shown in the figure comprises: a fixed forming block 1, a support frame 2 for raising the fixed forming block 1 is fixedly arranged at the bottom of the fixed forming block 1, the fixed forming block 1 is rectangular, and optical axes 3 are fixedly arranged at four angles of the upper end surface of the fixed forming block 1, a top plate 5 is fixedly arranged on the top of several optical axes 3, and a movable forming block 4 is slidably mounted on the outer surfaces of several optical axes 3, a forming groove 9 is opened on one end surface of the fixed forming block 1 close to the movable forming block 4, and a copper tube 11 is placed inside the forming groove 9, and an extrusion block 10 slidably engaged with the forming groove 9 is fixedly arranged at the bottom of the movable forming block 4; It also includes: a support and limiting unit, which is used to limit the copper tube 11 inside the forming groove 9 at multiple points, and the support and limiting unit is located inside the fixed forming block 1; A driving unit, used to drive the extrusion block 10 to engage with the forming groove 9, and the driving unit is located between the top plate 5 and the movable forming block 4; The surface cleaning unit is used to remove particles attached to the inner surface of the forming groove 9 , the outer surface of the extrusion block 10 and the copper tube 11 . The surface cleaning unit is located between the movable forming block 4 and the fixed forming block 1 .

[0021] The supporting and limiting unit includes a special-shaped groove 13 opened at the bottom of the fixed forming block 1, and the shape of the special-shaped groove 13 is consistent with the shape of the forming groove 9, a special-shaped through pipe 14 is placed inside the special-shaped groove 13, and the special-shaped through pipe 14 is also consistent with the shape of the special-shaped groove 13, one end of the special-shaped groove 13 is opened with a straight slot 15, and one end of the special-shaped through pipe 14 slides through the straight slot 15, and a plurality of ventilation pipes 20 are fixedly arranged at equal intervals on the top of the special-shaped through pipe 14, and the ventilation pipe 20 is connected to the special-shaped through pipe 14, each One end of each ventilation pipe 20 away from the special-shaped through pipe 14 is slidably embedded in the interior of the forming groove 9, and an arc-shaped silicone pad 18 is fixedly sleeved on the outer surface of the upper port of the ventilation pipe 20, and a ring 17 is fixedly sleeved on the outer surface of each ventilation pipe 20 corresponding to the interior of the special-shaped groove 13, and a first spring 21 is fixedly arranged between the end of the ring 17 away from the special-shaped through pipe 14 and the special-shaped groove 13, and a negative pressure component is arranged on the end of the special-shaped through pipe 14 extending out of the straight slot 15, and a plurality of arc-shaped silicone pads 18 are distributed on the center line position of the forming groove 9.

[0022] The inner bottom surface of the forming groove 9 is provided with a receiving groove 19 for receiving the arc-shaped silicone pad 18. The arc-shaped silicone pad 18 is arc-shaped. The arc surface diameter of the end of the arc-shaped silicone pad 18 away from the special-shaped through pipe 14 is a, the outer diameter of the copper tube 11 is b, and a<b. When the copper tube 11 is placed on the arc-shaped silicone pad 18, the dead weight of the copper tube 11 can open the arc-shaped silicone pad 18, so that the arc-shaped silicone pad 18 wraps the bottom of the copper tube 11, and the upper end of the vent pipe 20 is in close contact with the outer surface of the copper tube 11.

[0023] The negative pressure component includes a sealing cylinder 23 fixedly mounted on the side wall of the top plate 5, and a second hose 25 is fixedly connected and installed between the upper outer surface of the sealing cylinder 23 and one end of the special-shaped through pipe 14 extending out of the straight slot 15, a piston block 26 is slidably mounted inside the sealing cylinder 23, and the piston block 26 is located below the interface between the sealing cylinder 23 and the second hose 25, a pull rod 24 is slidably inserted at the bottom of the sealing cylinder 23, and a sliding plate 28 is fixedly installed on the top of the pull rod 24, and the piston block 26 is slidably mounted on the bottom of the sealing cylinder 23. A tension spring 27 is fixedly arranged between the sliding plates 28, a column 22 is arranged on the outside of the sealing cylinder 23, and the upper and lower ends of the column 22 are fixedly assembled with the outer wall of the movable forming block 4 and the bottom of the pull rod 24 respectively. When the movable forming block 4 starts to move toward the fixed forming block 1, the piston block 26 can be pulled downward by the pull rod 24, the sliding plate 28 and the tension spring 27. When the piston block 26 moves downward, the air between the ventilation pipe 20 and the outer wall of the copper tube 11 can be sucked to form a negative pressure.

[0024] The outer surface of the column 22 is fixedly sleeved with a stop block 16, and the end of the stop block 16 away from the column 22 is fixedly provided with a raised strip, which is slidably embedded in the interior of the special-shaped groove 13, and the raised strip is abutted against the outer surface of the special-shaped through pipe 14. When the movable forming block 4 is located at the top, the raised strip of the stop block 16 pushes the special-shaped through pipe 14 inside the special-shaped groove 13 upward, thereby raising a certain distance of the several arc-shaped silicone pads 18, so as to facilitate the staff to place the copper tube 11 on the several arc-shaped silicone pads 18.

[0025] The driving unit includes a driving motor 6 fixedly mounted on the top of the top plate 5, a rack 8 slidingly penetrating the top plate 5 is fixedly provided on the upper end surface of the movable forming block 4, a transmission gear 7 is fixedly mounted on the output end of the driving motor 6, and the transmission gear 7 is movably meshed with the rack 8, wherein the driving motor 6 is a reduction motor, and the movable forming block 4 is moved up and down through the meshing of the transmission gear 7 and the rack 8.

[0026] A flattening method for a mobile phone heat dissipation copper tube pre-flattening device, the method comprising the following steps: S1, product placement stage: the copper tube 11 is placed inside the forming groove 9, and the copper tube 11 is stably placed on the upper part of a plurality of arc-shaped silicone pads 18, and the copper tube 11 is initially wrapped and supported by the plurality of arc-shaped silicone pads 18; S2, driving stage: driving the transmission gear 7 and the rack 8 through the driving motor 6, so that the movable forming block 4 moves stably toward the fixed forming block 1; S3, negative pressure positioning stage: when the movable forming block 4 in S2 moves downward, the piston block 26 and the second hose 25 suck the inside of the special-shaped through pipe 14 and the vent pipe 20, so that the air pressure between the copper tube 11 and the vent pipe 20 is lower than the external atmospheric pressure, thereby achieving the negative pressure stabilization effect; S4, surface self-cleaning stage: when the movable forming block 4 in S2 moves downward, the angle between the two swing arms 29 in the same group is gradually reduced, and the arc piston rod 33 is gradually extended into the arc cylinder 32, and the gas inside the arc cylinder 32 is ejected through the narrow mouth of the narrow mouth jet pipe 39, thereby blowing high-speed airflow to the inner surface of the forming groove 9, the outer surface of the extrusion block 10 and the copper tube 11, and cleaning the particles attached to the surface.

[0027] Working principle: the staff will pick up the copper tube 11 to be flattened by silicone or plastic tweezers, and place the copper tube 11 on top of several arc-shaped silicone pads 18. After the placement is completed, the staff can start the driving motor 6. Under the action of the driving motor 6, the movable forming block 4 will move toward the fixed forming block 1 at a uniform speed. During the downward movement of the movable forming block 4, its stop block 16 will move downward and no longer support the special-shaped through pipe 14, so that the special-shaped through pipe 14 can move downward under the action of several first springs 21, so that the copper tube 11 moves to the bottom of the forming groove 9. At the same time, the movable forming block 4 can also move downward with the pull rod 24 through the column 22 during the downward movement, so that the piston block 26, the tension spring 27 and the sliding plate 28 inside the sealing cylinder 23 move downward as a whole. At this time, the piston block 26 can suck the air between the copper tube 11 and the ventilation pipe 20, so that a negative pressure state is formed between the copper tube 11 and the ventilation pipe 20, and the outer surface of the copper tube 11 can be limited by negative pressure adsorption at multiple points; As the air pressure between the piston block 26 and the vent pipe 20 gradually decreases, when the piston block 26 can no longer move downward, the tension spring 27 will be stretched by the sliding plate 28, which can ensure the negative pressure state between the piston block 26 and the vent pipe 20 without affecting the normal movement of the movable forming block 4, thereby ensuring the stability of the positioning of the copper tube 11; The copper tube 11 is flattened by the extrusion block 10 under the above-mentioned multi-point positioning state, which can effectively prevent the copper tube 11 from being deformed arbitrarily inside the forming groove 9, and ensure that the bending part of the copper tube 11 will not be randomly offset, so as to ensure that after the copper tube 11 is flattened, its overall shape and bending angle are consistent with the state before being flattened, thereby ensuring the accuracy of the flattening of the copper tube 11. Example 2: Please refer to Figure 5-Figure 7, this embodiment is a further description of the first embodiment, the surface cleaning unit includes two groups of swing arms 29 distributed on the two side walls of the fixed forming block 1 and the movable forming block 4, each group of swing arms 29 has two swing arms 29, and are symmetrically distributed up and down, the ends of the two swing arms 29 on the same side that are far away from each other are respectively hinged to the fixed forming block 1 and the movable forming block 4, and the facing ends of the two swing arms 29 are fixedly installed with synchronous gears 31, the two synchronous gears 31 close to each other are movably meshed, and the facing ends of the two swing arms 29 in the same group are jointly hingedly installed with a hinge plate 30, and the end surface of each swing arm 29 close to the center of the fixed forming block 1 is A slot 36 is provided, and at least two guide rods 38 are fixedly arranged inside the slot 36, a sliding frame 37 is slidably sleeved between the two guide rods 38, and a narrow jet pipe 39 is fixedly installed inside the sliding frame 37, the nozzle of the narrow jet pipe 39 faces the side of the swing arm 29 where the synchronous gear 31 is installed, and a second spring 40 is fixedly arranged between the sliding frame 37 and the bottom surface of the slot 36, and a gas injection component is arranged between each narrow jet pipe 39 and the swing arm 29, and as the spacing between the fixed forming block 1 and the movable forming block 4 increases or decreases, the angle between the two swing arms 29 of the same group increases or decreases synchronously.

[0028] The gas injection component includes an arc-shaped air cylinder 32 fixedly arranged on an end face of each swing arm 29 away from the empty groove 36, and the arc-shaped air cylinder 32 extends in a direction away from the synchronous gear 31, an air hole 35 is opened between each arc-shaped air cylinder 32 and the empty groove 36, and the air hole 35 is fixedly connected to the end of the narrow air injection pipe 39 away from the nozzle with a first hose 12, and an arc-shaped piston rod 33 is slidably assembled inside each arc-shaped air cylinder 32, and a mounting frame 34 is fixedly arranged between one end of the arc-shaped piston rod 33 extending out of the arc-shaped air cylinder 32 and the fixed forming block 1 / movable forming block 4. When the distance between the two swing arms 29 is reduced, the arc-shaped piston rod 33 will be pushed into the interior of the arc-shaped air cylinder 32, and the gas inside the arc-shaped air cylinder 32 will be transported to the interior of the narrow paint spraying air pipe 39.

[0029] The guide rod 38 and the end surface of the swing arm 29 away from the arc-shaped air cylinder 32 are flush, so as to avoid the guide rod 38 hindering the fitting of the two swing arms 29 in the same group.

[0030] In this embodiment: during the flattening process of the copper tube 11, if there are solid particles attached to the surface of the copper tube 11 or the lower end surface of the extrusion block 10, when the solid particles are squeezed onto the copper tube 11, various pit marks will be formed on the surface of the copper tube 11. Small pits will affect the overall appearance of the copper tube 11, and large pits will break the inner wall structure of the copper tube 11. Therefore, in this solution, when the movable forming block 4 moves downward, the two swing arms 29 on both sides are synchronously bent, and the angles of the two swing arms 29 are gradually reduced, and the two swing arms During the angle change process, the arc piston rod 33 extends into the arc cylinder 32, and squeezes the air inside the arc cylinder 32 into the narrow nozzle 39 through the first hose 12, and finally ejects it through the narrow opening of the narrow nozzle 39. The compressed air is ejected through the narrow opening with a fast flow rate. The high-speed airflow flushes the surface of the extrusion block 10, the surface of the forming groove 9, and the surface of the copper tube 11 respectively, which can effectively blow away the particulate matter attached to the surfaces of the three, thereby achieving the effect of surface self-cleaning.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile phone heat dissipation copper tube pre-flattening device, characterized in that: include: A fixed forming block (1), wherein a support frame (2) for raising the fixed forming block (1) is fixedly arranged at the bottom of the fixed forming block (1), the fixed forming block (1) is rectangular, and optical axes (3) are fixedly arranged at four angles of the upper end surface of the fixed forming block (1), a top plate (5) is fixedly arranged on the top of a plurality of the optical axes (3), and a movable forming block (4) is slidably mounted on the outer surfaces of a plurality of the optical axes (3), a forming groove (9) is provided on one end surface of the fixed forming block (1) close to the movable forming block (4), and a copper tube (11) is placed inside the forming groove (9), and an extrusion block (10) slidably engaged with the forming groove (9) is fixedly arranged at the bottom of the movable forming block (4); Also includes: A supporting and limiting unit, used for achieving a multi-point limiting effect on the copper tube (11) inside the forming groove (9), the supporting and limiting unit being located inside the fixed forming block (1); a driving unit, used for driving the extrusion block (10) to engage with the forming groove (9), the driving unit being located between the top plate (5) and the movable forming block (4); A surface cleaning unit is used to remove particles attached to the inner surface of the molding groove (9), the extrusion block (10) and the outer surface of the copper tube (11), and the surface cleaning unit is located between the movable molding block (4) and the fixed molding block (1).

2. A mobile phone heat dissipation copper tube pre-flattening device according to claim 1, characterized in that: The supporting and limiting unit comprises a special-shaped groove (13) formed at the bottom of the fixed forming block (1), and the shape of the special-shaped groove (13) is consistent with the shape of the forming groove (9), a special-shaped through pipe (14) is placed inside the special-shaped groove (13), and the special-shaped through pipe (14) is also consistent with the shape of the special-shaped groove (13), one end of the special-shaped groove (13) is formed with a straight slot (15), and one end of the special-shaped through pipe (14) slides through the straight slot (15), and a plurality of ventilation pipes (20) are fixedly arranged at equal intervals on the top of the special-shaped through pipe (14), and the ventilation pipes (20) The vent pipe (20) is connected to the special-shaped through pipe (14), one end of each vent pipe (20) away from the special-shaped through pipe (14) is slidably embedded in the interior of the forming groove (9), and an arc-shaped silicone pad (18) is fixedly sleeved on the outer surface of the upper end of the vent pipe (20), and a collar (17) is fixedly sleeved on the outer surface of each vent pipe (20) corresponding to the interior of the special-shaped groove (13), and a first spring (21) is fixedly arranged between the end of the collar (17) away from the special-shaped through pipe (14) and the special-shaped groove (13), and a negative pressure component is arranged at one end of the special-shaped through pipe (14) extending out of the straight groove (15).

3. A mobile phone heat dissipation copper tube pre-flattening device according to claim 2, characterized in that: The inner bottom surface of the molding groove (9) is provided with a receiving groove (19) for receiving the arc-shaped silicone pad (18); the arc-shaped silicone pad (18) is in an arc shape; the arc surface of one end of the arc-shaped silicone pad (18) away from the special-shaped through pipe (14) has a diameter a; the outer diameter of the copper pipe (11) is b, and a<b.

4. A mobile phone heat dissipation copper tube pre-flattening device according to claim 2, characterized in that: The negative pressure component comprises a sealing cylinder (23) fixedly mounted on the side wall of the top plate (5), and a second hose (25) is fixedly installed between the upper outer surface of the sealing cylinder (23) and one end of the special-shaped through pipe (14) extending out of the straight slot (15), a piston block (26) is slidably mounted inside the sealing cylinder (23), and the piston block (26) is located below the interface between the sealing cylinder (23) and the second hose (25), a pull rod (24) is slidably inserted at the bottom of the sealing cylinder (23), and a sliding plate (28) is fixedly installed on the top of the pull rod (24), a tension spring (27) is fixedly arranged between the piston block (26) and the sliding plate (28), a column (22) is arranged on the outside of the sealing cylinder (23), and the upper and lower ends of the column (22) are respectively fixedly assembled with the outer wall of the movable forming block (4) and the bottom of the pull rod (24).

5. A mobile phone heat dissipation copper tube pre-flattening device according to claim 4, characterized in that: A stop block (16) is fixedly mounted on the outer surface of the column (22), and a protruding strip is fixedly disposed on one end of the stop block (16) away from the column (22), the protruding strip is slidably embedded in the interior of the special-shaped groove (13), and the protruding strip abuts against the outer surface of the special-shaped through pipe (14).

6. A mobile phone heat dissipation copper tube pre-flattening device according to claim 1, characterized in that: The driving unit comprises a driving motor (6) fixedly mounted on the top of the top plate (5); a rack (8) slidably penetrating the top plate (5) is fixedly provided on the upper end surface of the movable forming block (4); a transmission gear (7) is fixedly sleeved on the output end of the driving motor (6), and the transmission gear (7) is movably meshed with the rack (8).

7. A mobile phone heat dissipation copper tube pre-flattening device according to claim 2, characterized in that: The surface cleaning unit comprises two groups of swing arms (29) distributed on the two side walls of the fixed forming block (1) and the movable forming block (4), each group of the swing arms (29) comprises two swing arms (29) which are symmetrically distributed in an upper and lower manner, and the ends of the two swing arms (29) located on the same side which are away from each other are respectively hinged to the fixed forming block (1) and the movable forming block (4), and the facing ends of the two swing arms (29) are fixedly mounted with synchronous gears (31), and the two synchronous gears (31) which are close to each other are movably meshed, and the facing ends of the two swing arms (29) located in the same group are jointly hingedly mounted with a hinge plate (30), and each swing arm (29) is close to the hinge plate (31). An end face at the center of each of the fixed forming blocks (1) is provided with a hollow groove (36), and at least two guide rods (38) are fixedly arranged inside the hollow groove (36), a sliding sleeve frame (37) is slidably sleeved between the two guide rods (38), and a narrow nozzle air injection pipe (39) is fixedly installed inside the sliding sleeve frame (37), the nozzle of the narrow nozzle air injection pipe (39) faces the side of the swing arm (29) on which the synchronous gear (31) is installed, and a second spring (40) is fixedly arranged between the sliding sleeve frame (37) and the bottom surface of the hollow groove (36), and a gas injection component is arranged between each narrow nozzle air injection pipe (39) and the swing arm (29).

8. A mobile phone heat dissipation copper tube pre-flattening device according to claim 7, characterized in that: The gas injection component comprises an arc-shaped gas cylinder (32) fixedly arranged on an end face of each swing arm (29) away from the slot (36), and the arc-shaped gas cylinder (32) extends in a direction away from the synchronous gear (31), an air hole (35) is opened between each arc-shaped gas cylinder (32) and the slot (36), and a first hose (12) is fixedly connected between the air hole (35) and an end of the narrow nozzle air injection pipe (39) away from the nozzle, and an arc-shaped piston rod (33) is slidably mounted inside each arc-shaped gas cylinder (32), and a mounting frame (34) is fixedly arranged between an end of the arc-shaped piston rod (33) extending out of the arc-shaped gas cylinder (32) and the fixed forming block (1) / the movable forming block (4).

9. A mobile phone heat dissipation copper tube pre-flattening device according to claim 8, characterized in that: The guide rod (38) and an end surface of the swing arm (29) away from the arc-shaped air cylinder (32) are flush.

10. A flattening method for a mobile phone heat dissipation copper tube pre-flattening device, applicable to a mobile phone heat dissipation copper tube pre-flattening device as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1, product placement stage: placing the copper tube (11) inside the forming groove (9), and making the copper tube (11) stably located on the upper part of a plurality of arc-shaped silicone pads (18), so that the copper tube (11) is initially wrapped and supported by the plurality of arc-shaped silicone pads (18); S2, driving stage: driving the transmission gear (7) and the rack (8) by the driving motor (6), so as to cause the movable forming block (4) to move stably toward the fixed forming block (1); S3, negative pressure positioning stage: when the movable forming block (4) in S2 moves downward, the piston block (26) and the second hose (25) suck the inside of the special-shaped through pipe (14) and the vent pipe (20), so that the air pressure between the copper pipe (11) and the vent pipe (20) is lower than the external atmospheric pressure, thereby achieving a negative pressure stabilization effect; S4, surface self-cleaning stage: When the movable forming block (4) in S2 moves downward, the angle between the two swing arms (29) in the same group is gradually reduced, and the arc-shaped piston rod (33) gradually extends into the interior of the arc-shaped air cylinder (32), and the gas inside the arc-shaped air cylinder (32) is ejected through the narrow opening of the narrow opening jet pipe (39), thereby blowing a high-speed airflow to the inner surface of the forming groove (9), the outer surface of the extrusion block (10) and the copper tube (11), and cleaning the particles attached to the surface.

Images