PIN needle pressing equipment
Technical Field
The utility model relates to a radiator manufacturing field especially relates to a PIN needle pressure equipment.
Background
The radiating fin is a device for quickly radiating heat of an easily-generated electronic element in a power supply, is mostly made of aluminum alloy, brass or bronze and is made into a plate shape, a sheet shape, a plurality of sheet shapes and the like, and for example, a central processing unit of a computer CPU (central processing unit) needs to use a relatively large radiating fin. In the production process of the radiating fin, a PIN needle needs to be assembled on the radiating fin, the PIN needle is a metal needle with a small size, in order to accurately position the PIN needle when the PIN needle is inserted into the radiating fin, a protruding step is usually designed on the PIN needle to form a cross-shaped PIN needle, the lengths of two end parts of the step of the PIN needle are different, one end of the PIN needle inserted into the radiating fin is generally relatively short, and at present, the PIN needle inserted into the radiating fin is mostly fixed with the PIN needle and the radiating fin by realizing bump riveting in a press-fitting mode.
The traditional heat radiating fin PIN needle pressing and mounting is completed manually, a PIN needle is implanted into a hole position of the heat radiating fin by a hand of a user, and then a salient point is opened by further pressing and mounting the PIN needle by other simple tools to fix the PIN needle and the heat radiating fin, on one hand, because the assembly precision of the PIN needle is higher, the precision requirement is difficult to meet by the manual pressing and mounting mode, a gap is easily formed between the PIN needle and the hole position of the heat radiating fin, the product is unqualified due to the eccentricity of the PIN needle during pressing and mounting, the precision of the PIN needle is low, on the other hand, the subjective factors are more, the operation proficiency degrees of different personnel are different, the riveting tension force after the PIN needle pressing and mounting is not uniform, the product consistency is not good, in addition, for example, a patent document with the authorization publication No. CN206727404U discloses a PIN pressing machine, although the production of the heat radiating fin is met to a certain, the dependence on manpower is strong, and online continuous production cannot be realized, so that the requirements of market development cannot be met today when efficiency and quality are taught.
Disclosure of Invention
The utility model discloses a solve traditional fin PIN needle pressure equipment mode inefficiency, the problem that the product uniformity is not good has provided a PIN needle pressure equipment, has realized the automatic implantation and the pressure equipment of PIN needle, has improved production efficiency by a wide margin, has guaranteed product quality.
In order to realize the purpose, the technical scheme of the utility model is that:
a PIN press fitting apparatus comprising:
a turnover mechanism arranged on the machine table and a needle bin for storing PIN needles;
the needle feeding mechanism and the press-fitting mechanism are sequentially arranged in the rotating direction of the turnover mechanism, and the press-fitting mechanism is positioned at the downstream of the needle feeding mechanism;
the turnover mechanism comprises a rotatable turntable, and a plurality of product jigs loaded with cooling fins are uniformly distributed on the edge of the turntable;
the needle feeding mechanism comprises a working part capable of being converted from the horizontal direction to the vertical direction and a feeding unit arranged on the working part, and the feeding unit is used for orderly implanting the single PIN needles sucked from the needle bin through the air hose into the radiating fin hole positions on the product jig one by one;
the press-fitting mechanism comprises a press-fitting cylinder and a group of press-fitting ejector PINs arranged on the press-fitting cylinder and used for press-fitting the PIN PINs implanted into the radiating fins;
an auxiliary positioning mechanism for assisting the positioning of the radiating fins on the product jig is arranged at the position corresponding to the needle feeding mechanism below the turntable;
still including being convenient for PIN needle pressure equipment back fin and product tool separation take off material mechanism.
Furthermore, the turntable is arranged above the center of a turnover unit pivoted with the machine table in a spanning mode, the turnover unit is driven by a synchronous belt driven by a motor, and the turnover unit is a speed reducer used for realizing speed reduction transmission between the motor and the turntable which are connected in a transmission mode through the synchronous belt.
Furthermore, the working part comprises a horizontal moving assembly arranged on the machine platform through a group of parallel first supports and a first vertical moving assembly arranged on the horizontal moving assembly in a sliding mode through a second support, the feeding unit comprises a forward and backward air cylinder arranged on the first vertical moving assembly through a fixing plate and a batch head positioned right below the forward and backward air cylinder, and the open end of a piston rod of the forward and backward air cylinder is connected with a guide pressure rod vertically penetrating through the batch head through a sliding seat;
the sliding seat is matched with a sliding rail fixedly arranged on the vertical moving assembly, and a spring which has a buffering effect after being abutted against the sliding seat is sleeved on a piston rod of the advance and retreat cylinder.
Furthermore, a through hole for the guide pressure rod to pass through is vertically formed in the center of the batch head, the top of the batch head passes through a fixed block on the first vertical moving assembly and then is connected with the guide pressure rod, a pair of movable chucks hinged to the middle of the batch head are arranged in the middle of the batch head, a needle passing hole is obliquely formed in the side edge of the movable chuck in the bottom of the batch head, and the batch head through hole is communicated with the bottom of the needle passing hole;
the opposite surfaces of the pair of movable chucks are provided with notches for the PIN needles to pass through, and the orifice of the needle passing hole of the batch head is connected with the needle bin through a soft air pipe.
Furthermore, the press-fitting cylinder is arranged on the machine table through a third support, an upper template is assembled at the open end of a piston rod of the press-fitting cylinder, and a group of press-fitting thimbles are arranged below the upper template in a state that a pointed end faces downwards; and telescopic rods which slide synchronously with the press-fitting air cylinder are arranged above the upper template and distributed on two sides of a piston rod of the press-fitting air cylinder.
Furthermore, the auxiliary positioning mechanism comprises a second vertical moving assembly and a positioning seat, the second vertical moving assembly is arranged on the machine table through a connecting piece, the positioning seat is arranged on the second vertical moving assembly in a sliding mode, and a group of positioning ejector pins with upward pointed ends are arranged on the positioning seat and correspond to the radiating fins on the product jig.
Furthermore, the stripping mechanism comprises a third vertical moving component positioned on the third support and a stripping plate arranged on the third vertical moving component in a sliding manner, a group of stripping thimbles with upward tips are arranged on the stripping plate corresponding to the radiating fins on the product jig, and the turntable and the product jig are provided with through holes for the positioning thimbles and the stripping thimbles to pass through.
Furthermore, the horizontal moving assembly, the vertical moving assembly I, the vertical moving assembly II and the vertical moving assembly III are sliding block guide rail combinations capable of sliding relatively, the horizontal assemblies are two groups which are perpendicular to each other, and the sliding block guide rail combinations, the motor, the press-fitting cylinder and the advance and retreat cylinder are controlled by a control system of the machine table to move orderly.
Further, wheels and a support are arranged below the machine table.
The utility model has the advantages that:
the utility model discloses a carousel in the turnover mechanism, send advance and retreat cylinder and pay-off unit in the needle mechanism and the cooperation between pressure equipment cylinder and the pressure equipment thimble in the pressure equipment mechanism, can realize that the automation of PIN needle is implanted and automatic pressure equipment in the fin production, form online continuous production, degree of automation is high, compare traditional artifical pressure equipment mode and pressure PIN machine, the pressure equipment efficiency of PIN needle has been improved by a wide margin, the labour has been liberated, and replaced manual production with mechanized automatic production, promote standardized production, the inhomogeneous problem of pulling force of riveting behind the pressure equipment of PIN needle has been avoided, the quality of PIN needle pressure equipment has been improved, the product uniformity is good, the demand of modernized high-speed production has been satisfied.
Drawings
Fig. 1 is the utility model discloses a structural schematic of PIN needle pressure equipment.
Fig. 2 is a schematic structural diagram of a needle feeding mechanism in the PIN pressing device of the present invention.
Fig. 3 is a schematic structural diagram of a turnover mechanism in the PIN pressing device of the present invention.
Fig. 4 is a schematic structural diagram of a press-fitting mechanism in the PIN press-fitting apparatus of the present invention.
Fig. 5 is the utility model discloses a structural schematic of auxiliary positioning mechanism in PIN needle pressure equipment.
Fig. 6 is the utility model discloses a take off the structural schematic of material mechanism in PIN needle pressure equipment.
Fig. 7 is an enlarged schematic view of a point a in fig. 2 of the PIN press mounting apparatus of the present invention.
The reference numbers in the drawings are as follows: the device comprises a machine table 1, a needle bin 2, a rotary table 3, a product jig 4, a press-fitting cylinder 5, a press-fitting thimble 6, a synchronous belt 7, a speed reducer 8, a first support 9, a horizontal moving component 10, a second support 11, a first vertical moving component 12, a fixed plate 13, an advancing and retreating cylinder 14, a batch head 15, a sliding seat 16, a guide pressing rod 17, a sliding rail 18, a spring 19, a fixed block 20, a movable chuck 21, a third support 22, an upper template 23, a telescopic rod 24, a second vertical moving component 25, a positioning seat 26, a positioning thimble 27, a third vertical moving component 28, a stripper plate 29, a stripper plate 30, a stripper thimble 31, a wheel and a support 32.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 7, a PIN attaching apparatus includes:
a turnover mechanism arranged on the machine table 1 and a needle bin 2 for storing PIN needles;
the needle feeding mechanism and the press-fitting mechanism are sequentially arranged along the rotating direction of the turnover mechanism, and the press-fitting mechanism is positioned at the downstream of the needle feeding mechanism;
the turnover mechanism comprises a rotatable turntable 3, and a plurality of product jigs 4 loaded with cooling fins are uniformly distributed on the edge of the turntable 3;
the needle feeding mechanism comprises a working part capable of converting from a horizontal direction to a vertical direction and a feeding unit arranged on the working part, and the feeding unit is used for orderly implanting the single PIN needles sucked from the needle bin 2 through the soft air pipe into the radiating fin hole positions on the product jig 4 one by one;
the press-fitting mechanism comprises a press-fitting cylinder 5 and a group of press-fitting ejector PINs 6 which are arranged on the press-fitting cylinder 5 and used for press-fitting PIN PINs implanted into the radiating fins;
an auxiliary positioning mechanism for assisting the positioning of the radiating fins on the product jig 4 is arranged at the position corresponding to the needle feeding mechanism below the turntable 3;
still include the material mechanism that takes off that the fin separates with product tool 4 after the pressure equipment of PIN needle.
In this embodiment, the turntable 3 is arranged above the center of a revolving unit pivoted to the machine table 1 in a straddling manner, the revolving unit is driven by a synchronous belt 7 driven by a motor, and the revolving unit is a speed reducer 8 for realizing speed reduction between the motor and the turntable 3 which are connected in a transmission manner through the synchronous belt 7.
In the embodiment, the working part comprises a horizontal moving assembly 10 arranged on the machine table 1 through a group of parallel first supports 9 and a vertical moving assembly 12 arranged on the horizontal moving assembly 10 in a sliding manner through a second support 11, the feeding unit comprises an advancing and retreating cylinder 14 arranged on the vertical moving assembly 12 through a fixing plate 13 and a batch head 15 positioned right below the advancing and retreating cylinder 14, and the open end of a piston rod of the advancing and retreating cylinder 14 is connected with a guide pressure rod 17 vertically penetrating through the batch head 15 through a sliding seat 16;
the sliding seat 16 is matched with a sliding rail 18 fixedly arranged on the vertical moving assembly, and a spring 19 which has a buffering effect after being abutted against the sliding seat 16 is sleeved on a piston rod of the advancing and retreating cylinder 14.
In the embodiment, a through hole for the guide pressure rod 17 to pass through is vertically formed in the center of the batch head 15, the top of the batch head 15 passes through the fixed block 20 on the vertical moving assembly I12 and then is connected with the guide pressure rod 17, the middle part of the batch head 15 is provided with a pair of movable chucks 21 hinged on the batch head, the bottom of the batch head 15 is obliquely provided with a through hole at the side edge of the movable chuck 21, and the through hole of the batch head 15 is communicated with the bottom of the through hole;
the opposite surfaces of the pair of movable clamping heads 21 are provided with notches for the PIN needles to pass through, and the orifice of the needle passing hole of the batch head 15 is connected with the needle bin 2 through a soft air pipe.
In the embodiment, the press-fitting cylinder 5 is arranged on the machine table 1 through a third support 22, an upper template 23 is assembled at the open end of a piston rod of the press-fitting cylinder 5, and a group of press-fitting ejector pins 6 are arranged below the upper template 23 in a state that the pointed ends face downwards; an expansion link 24 which slides synchronously with the press-fitting cylinder 5 is arranged above the upper template 23, and the expansion link 24 is distributed on two sides of a piston rod of the press-fitting cylinder 5.
In this embodiment, the auxiliary positioning mechanism includes a second vertical moving component 25 disposed on the machine table 1 through a connecting member and a positioning seat 26 slidably disposed on the second vertical moving component 25, and a group of positioning ejector pins 27 with upward tips are disposed on the positioning seat 26 corresponding to the heat dissipation fins on the product fixture 4.
In this embodiment, the stripping mechanism includes a third vertical moving component 28 located on the third support 22 and a stripping plate 29 slidably disposed on the third vertical moving component 28, a group of stripping thimbles 30 with upward tips are disposed on the stripping plate 29 corresponding to the heat dissipation fins on the product fixture 4, and the rotary disk 3 and the product fixture 4 have through holes for the positioning thimbles 27 and the stripping thimbles 30 to pass through.
Specifically, the horizontal moving assembly 10, the first vertical moving assembly 12, the second vertical moving assembly 25 and the third vertical moving assembly 28 are sliding block guide rail combinations which can slide relatively, and the horizontal assemblies are two groups which are arranged vertically to each other, so that the design requirements of left-right and front-back movement in the horizontal direction are met; the slide block guide rail combination, the motor, the press-fitting cylinder 5 and the advance and retreat cylinder 14 are controlled by a control system of the machine table 1 to move in order; in addition, wheels 31 and a support 32 are arranged below the machine table 1.
The working steps are explained as follows:
1. placing the product jig 4 with the radiating fins loaded in advance on the rotary table 3 through the previous process, and driving the rotary table 3 to rotate by the speed reducer 8 so as to drive the product jig 4 to be conveyed to the lower part of the needle feeding mechanism;
2. referring to fig. 2 and 7 again, the bit 15 sucks a single PIN through the soft air tube connected to the needle bin 2, when the PIN is sucked into the bit 15 and falls into the through hole along the bit 15 through the needle hole, then the first vertical moving component 12 pushes the feeding unit to move downwards to approach the product jig 4 conveyed to the lower part of the needle feeding mechanism, after the bit 15 in the feeding unit is in place, the advancing and retreating air cylinder 14 starts to extend out of the piston rod to drive the guide pressure rod 17, the movable chuck 21 on the bit 15 is opened, the guide pressure rod 17 implants the single PIN in the through hole of the bit 15 into a hole of the cooling fin, so that one-time implantation of the single PIN is completed, then the first vertical moving component 12 and the advancing and retreating air cylinder 14 return, and the guide pressure rod 17 retracts to the initial position;
3. the horizontal moving component 10 works to drive the returned feeding unit to horizontally move to the next hole position of the radiating fin, the next PIN needle is prepared to be implanted, and the step 2 is repeated until all the PIN needles are implanted into the radiating fin according to the number required by the design;
4. after the PIN needle is implanted, the product jig 4 is conveyed to the position below the press-mounting mechanism along with the rotary table 3, and meanwhile, the next workpiece is continuously conveyed to the position below the needle conveying mechanism to finish uninterrupted work;
5. the press mounting cylinder 5 drives the press mounting thimble 6 below the upper template 23 to extend out, the press mounting implanted PIN opens the salient point, namely fixing of the PIN and the radiating fin is completed, and then the press mounting cylinder 5 resets; the pressed workpiece moves away from the pressing mechanism along with the turntable 3, and then the workpiece is taken down from the turntable 3 and enters the next procedure;
6. and (5) repeating the steps 1, 2, 3, 4 and 5 to form the implantation and press fitting of the online PIN needle, thereby realizing the production automation.
It should be noted that the principle that the PIN needle is sucked into the batch head 15 and the movable chuck 21 on the batch head 15 is opened adopts the technical means mature in the prior art, and the detailed description is omitted; in addition, in the process of implanting the PIN needle, the auxiliary positioning mechanism can push the positioning thimble 27 on the positioning seat 26 to stretch into the product jig 4 through the second vertical moving component 25, and further fixing of the radiating fins can be completed, so that the press mounting of the PIN needles of radiating fins of different models is met, meanwhile, the radiating fins are difficult to take down from the product jig 4 after press mounting of the radiating fins of some models, the stripping mechanism can drive the stripping thimble 30 on the stripping plate 29 through the third vertical moving component 28 to better separate the radiating fins from the product jig 4, and the operation is more convenient.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, so that equivalent changes and modifications made according to the structure, characteristics and principles of the present invention are all included in the scope of the present invention.