CN115212976B - Grinding and shaping device and method for soft metal spheres - Google Patents
Grinding and shaping device and method for soft metal spheres Download PDFInfo
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- CN115212976B CN115212976B CN202210945825.5A CN202210945825A CN115212976B CN 115212976 B CN115212976 B CN 115212976B CN 202210945825 A CN202210945825 A CN 202210945825A CN 115212976 B CN115212976 B CN 115212976B
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- 239000002184 metal Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000007493 shaping process Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 description 13
- 238000005457 optimization Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/24—Driving mechanisms
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a grinding shaping device and a method for a soft metal sphere, wherein the device comprises a grinding cylinder, a grinding rod movably sleeved in the grinding cylinder and a power mechanism for driving the grinding rod to move, an outer spiral groove is formed in the outer wall of the grinding rod, a feed inlet for the sphere to be ground to enter the outer spiral groove is formed in the grinding cylinder, the grinding rod can rotate and axially move in the grinding cylinder under the driving of the power mechanism so as to grind the sphere to be ground in the outer spiral groove.
Description
Technical Field
The invention relates to the field of grinding and shaping of soft metal spheres, in particular to a grinding and shaping device and method of soft metal spheres.
Background
The soft metal sphere is a sphere made of soft metals such as tin, lead, copper and the like and alloy materials thereof, and is widely applied in manufacturing industry, for example, the soft metal sphere used in the integrated circuit packaging process is a tin sphere. The packaging of BGA solder balls is the key for manufacturing chips in intelligent equipment, and in order to ensure the quality of highly integrated electronic products in the packaging process, the roundness, the size, the grinding precision and the uniformity of the solder balls are strictly required, and the diameter of the solder balls is very small, so that the production of the solder balls is very difficult, but the demand for the solder balls is larger and larger along with the increasing popularization of the intelligent equipment.
The conventional tin ball grinding method generally grinds the tin ball through a pair of round grinding wheels, and the grinding method has low precision, can not fully grind the tin ball in all directions, has discontinuous grinding process and has low grinding efficiency. For other soft metal spheres, the problems of low grinding efficiency and poor precision exist in the preparation and the use of the soft metal spheres.
Disclosure of Invention
The invention aims to provide a grinding and shaping device and method for soft metal spheres, which are used for solving the problems of low grinding efficiency and poor precision of the soft metal spheres.
In order to solve the technical problems, the invention adopts the following specific scheme: a grinding shaping method for soft metal spheres is characterized in that a grinding cylinder is sleeved outside a grinding rod, the spheres to be ground are placed in an outer spiral groove on the outer wall of the grinding rod, the grinding rod is driven to rotate in the grinding cylinder and axially move, so that the spheres to be ground are mutually extruded and rubbed with the groove wall of the outer spiral groove, the inner wall of the grinding cylinder and the adjacent spheres to be ground, and the spheres to be ground are ground.
The utility model provides a soft metal spheroidal grinds plastic device, includes grinding vessel, movable sleeve establishes at the inside grinding rod of grinding vessel and the power unit who is used for driving the grinding rod motion, and outer helicla flute has been seted up to the outer wall of grinding rod, has offered the feed inlet that supplies the spheroid of waiting to grind to get into in the outer helicla flute on the grinding vessel, and the grinding rod can rotate and axial displacement in the grinding vessel under power unit's drive to wait to grind the spheroid of waiting in the outer helicla flute.
As a further optimization of the technical scheme, a discharge hole for discharging the ground ball body is formed in the grinding cylinder, or a discharge channel for discharging the ground ball body is formed between the end part of the grinding cylinder and the grinding rod.
As a further optimization of the technical scheme, the number of the feeding holes is one and is positioned in the middle of the grinding cylinder, and the number of the discharging holes is two and is respectively positioned at two ends of the grinding cylinder.
As a further optimization of the above technical solution, the inner wall of the grinding cylinder is provided as a smooth cylindrical surface.
As a further optimization of the above technical scheme, the inner wall of the grinding cylinder is provided with an inner spiral groove corresponding to the notch of the outer spiral groove.
As further optimization of the technical scheme, at least one grinding cylinder with smooth inner wall and at least one grinding cylinder with inner spiral groove on the inner wall are sleeved outside the grinding rod, and the inner spiral groove corresponds to the notch of the outer spiral groove on the outer wall of the grinding rod.
As a further optimization of the technical scheme, the outside of the grinding cylinder is provided with a clamping piece capable of adjusting the compression degree of the grinding cylinder and the grinding rod, and the inside of the grinding rod is provided with a heating rod capable of adjusting the expansion degree of the grinding rod.
As the further optimization of above-mentioned technical scheme, the inside axial of grinding pole wears to be equipped with the axis of rotation, and axis of rotation and grinding pole fixed connection, power unit is including fixed driving motor and the standard ball screw of setting on the base, be provided with first supporting component in the axis of rotation, first supporting component includes first sleeve and the outside first bearing of cover at first sleeve is established, first sleeve cover is established in the axis of rotation outside and is connected with the rotation axle key, the outside fixed cover of first sleeve is equipped with the belt pulley, driving motor passes through driving belt and belt pulley transmission and is connected in order to drive the axis of rotation and rotate, the nut of standard ball screw is fixed to be set up on the base, the screw rod of standard ball screw is connected with the axis of rotation and coaxial distribution, standard ball screw is used for driving axis of rotation axial displacement when axis of rotation.
As a further optimization of the technical scheme, the second supporting component is arranged on the rotating shaft, the second supporting component and the first supporting component are respectively located on two sides of the grinding cylinder, the second supporting component comprises a second bearing and a second sleeve arranged on an inner ring of the second bearing, the second bearing is fixedly arranged on the base, and the rotating shaft is connected with the second sleeve through a key.
Compared with the prior art, the invention has the following beneficial effects: 1. according to the ball grinding device, the ball to be ground is driven to rotate along with the grinding rod by utilizing the principle of the ball screw, in the process, the ball to be ground, the outer spiral groove, the inner wall of the grinding cylinder and the adjacent ball to be ground are mutually extruded and rubbed, the ball to be ground rotates along the inner wall of the grinding cylinder, and the ball to be ground rotates, so that the ball to be ground is finally ground.
2. The inner wall of the grinding cylinder is a smooth cylindrical surface, after the ball to be ground enters the outer spiral groove, the grinding rod pushes the ball to move spirally, the cross section of the outer spiral groove is V-shaped, the ball forms three-point contact with the two side walls of the outer spiral groove and the inner wall of the grinding cylinder, the ball to be ground finishes the impact, impact and self-grinding operations between the grinding rod and the grinding cylinder, and the ball to be ground finishes the accurate grinding along with the spiral advancing of the grinding rod; the inner wall of the grinding cylinder is provided with the inner spiral groove corresponding to the notch of the outer spiral groove, and when the ball body is ground, the ball body is forced to deform by utilizing the outer spiral groove and the inner spiral groove along with the relative movement of the grinding rod and the grinding cylinder, so that the purpose of shaping is achieved, and the rough grinding of the ball body to be ground can be realized.
3. The outside of the grinding cylinder is provided with a clamping piece, and the compression degree of the grinding cylinder and the grinding rod is adjusted by adjusting the clamping degree of the clamping piece so as to grind spheres with different sizes; the inside at the grinding rod is equipped with the heating rod, and according to the principle of expend with heat and contract with cold, the heating rod heats the grinding rod, and the degree of expansion of grinding rod after the heating can change the degree of compaction of grinding rod and grinding vessel, and then adapts to the spheroid grinding of different diameters.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the grinding process (initial state) of the present invention;
FIG. 4 is a cross-sectional view of the grinding process of the present invention (when the drive motor is initially switched from forward rotation to reverse rotation and the feed port is initially closed);
FIG. 5 is a cross-sectional view of the grinding process of the present invention (with the drive motor remaining reversed and the feed port reopened);
FIG. 6 is a cross-sectional view of the grinding process of the present invention (when the drive motor is turned over to start turning forward after turning over and the feed port is turned off);
FIG. 7 is a cross-sectional view of the grinding process of the present invention (with the drive motor remaining in forward rotation and the feed port reopened);
Reference numerals: 1. base, 2, second backup pad, 3, elastic support board, 4, driving motor, 5, first backup pad, 6, third backup pad, 7, standard ball screw, 701, screw rod, 702, nut, 8, shaft coupling, 9, axis of rotation, 10, grinding rod, 11, grinding vessel, 1101, feed inlet, 1102, discharge gate, 12, second supporting component, 1201, second sleeve, 1202, second bearing, 13, first supporting component, 1301, first sleeve, 1302, first bearing, 14, belt pulley, 15, drive belt.
Detailed Description
Example 1
As shown in fig. 1 and 2, the invention relates to a grinding and shaping device for soft metal spheres, which comprises a grinding cylinder 11, a grinding rod 10 movably sleeved in the grinding cylinder 11 and a power mechanism for driving the grinding rod 10 to move. The outer wall of the grinding rod 10 is provided with an outer spiral groove (not shown in the figure), the cross section of the outer spiral groove is V-shaped, the grinding cylinder 11 is provided with a feed inlet 1101 and a discharge outlet 1102, the feed inlet 1101 is used for enabling a ball to be ground to enter the outer spiral groove for grinding, the discharge outlet 1102 is used for enabling the ball to be ground in the outer spiral groove to be discharged, and the grinding rod 10 can rotate in the grinding cylinder 11 and axially move under the driving of a power mechanism, so that the ball to be ground in the outer spiral groove is ground. By adjusting the lead size of the outer spiral groove provided on the grinding rod 10, the accuracy of the ground ball can be controlled.
The grinding cylinder 11 is connected to the base 1 through an elastic support plate 3, and the elastic support plate 3 is made of a material having elasticity such as rubber. The base 1 is provided with a strip-shaped groove consistent with the length direction of the grinding cylinder 11, the upper part of the elastic support plate 3 is fixedly connected with the grinding cylinder 11, the lower part of the elastic support plate 3 is arranged in the strip-shaped groove, and the sleeving position of the grinding cylinder 11 on the grinding rod 10 can be changed by adjusting the installation position of the elastic support plate 3 in the strip-shaped groove. The base 1 is of cast iron structure and is used for bearing the weight of the grinding cylinder 11, the grinding rod 10 and the power mechanism.
The inside axial of grinding pole 10 wears to be equipped with axis of rotation 9, and axis of rotation 9 and grinding pole 10 fixed connection, and grinding pole 10 is extended at the both ends of axis of rotation 9. The power mechanism comprises a driving motor 4 fixedly arranged on the base 1 and a standard ball screw 7 fixedly arranged on the base 1, wherein the standard ball screw 7 comprises a screw 701, a nut 702 and balls (not shown in the figure), the screw 701 of the standard ball screw 7 is coaxially distributed with the rotating shaft 9 and fixedly connected with one end of the rotating shaft 9 through a coupler 8, and the nut 702 is fixed on the base 1 through a third supporting plate 6. The nut 702 is a stepped nut 702 with a large diameter end and a small diameter end, the third support plate 6 is provided with a through hole for the small diameter end of the nut 702 to pass through, and the large diameter end of the nut 702 is fixedly connected with the third support plate 6 through a bolt. The principle of the invention refers to the working principle of the ball screw, and is different in that the ball screw is an executive component which converts rotary motion into linear motion, the ball screw provides rotation of a screw rod when in operation, a ball rotates in a thread groove between the screw rod and a nut and moves along with the thread groove, and finally the linear motion of the screw rod in the nut is output.
The driving motor 4 is in transmission connection with the rotating shaft 9 to drive the rotating shaft 9 to rotate, the rotating shaft 9 is provided with a first supporting component 13, the first supporting component 13 comprises a first sleeve 1301 and a first bearing 1302, the first sleeve 1301 is sleeved outside the rotating shaft 9 and is in key connection with the rotating shaft 9, and therefore the first sleeve 1301 can drive the rotating shaft 9 to rotate. The outer fixing sleeve of the first sleeve 1301 is provided with a first bearing 1302, and the first bearing 1302 is fixed to the base 1 through a first support plate 5. The outside of the first sleeve 1301 is fixedly sleeved with a belt pulley 14, and the driving motor 4 is in transmission connection with the belt pulley 14 through a transmission belt 15 so as to drive the first sleeve 1301 to rotate and further drive the rotating shaft 9 to rotate. The arrangement of the first bearing 1302 can limit the axial movement of the first sleeve 1301, the first bearing 1302 is fixedly connected with the first sleeve 1301 in an interference fit manner, and limiting blocks are further arranged on the first sleeve 1301 and located on two sides of the first bearing 1302 so as to prevent the first sleeve 1301 from axially moving relative to the first bearing 1302 when rotating. The manner of the key connection between the first sleeve 1301 and the rotation shaft 9 can drive the rotation shaft 9 to rotate when the first sleeve 1301 rotates, and meanwhile the axial movement of the rotation shaft 9 is prevented from being influenced.
Since the belt transmission has high transmission precision and high reliability, the driving of the rotating shaft 9 is realized by the transmission of the transmission belt 15 in the embodiment, and it is understood that transmission modes such as chain transmission, gear transmission and the like can also be adopted.
The first support assembly 13 and the standard ball screw 7 are both arranged on the same side of the grinding cylinder 11, a second support assembly 12 is arranged on the side, opposite to the first support assembly 13, of the grinding cylinder 11, the second support assembly 12 comprises a second bearing 1202 and a second sleeve 1201 arranged on the inner ring of the second bearing 1202, the second bearing 1202 is sleeved on the outer part of the second sleeve 1201, the outer part of the second sleeve 1201 is connected with the inner ring of the second bearing 1202 in an interference fit mode, and the outer ring of the second bearing 1202 is fixedly connected on the base 1 through a second support plate 2. The second bearing 1202 may be configured to limit axial movement of the second sleeve 1201, and limiting blocks (not shown) are also provided on both sides of the second sleeve 1202 on the second sleeve 1201 to limit axial movement of the first sleeve 1301 relative to the first bearing 1302 when rotation occurs. The rotation shaft 9 extends from the grinding rod 10, passes through the second sleeve 1201, and is connected with the second sleeve 1201 in a key manner, and the second sleeve 1201 can rotate in the second bearing 1202, so that the key connection manner of the second sleeve 1201 and the rotation shaft 9 does not affect the rotation of the rotation shaft 9 or the axial movement of the rotation shaft 9. In order to alleviate the resistance to axial movement of the rotatable shaft 9 by means of the key connections, the key connections in the present invention are all connected by ball spline.
When the driving motor 4 drives the rotation shaft 9 to rotate, the screw 701 of the standard ball screw 7 connected with the rotation shaft 9 also rotates, and because the nut 702 of the standard ball screw 7 is in a fixed state, the screw 701 axially moves while rotating in the nut 702, and further the rotation shaft 9 connected with the screw 701 is driven to axially move. The driving motor 4 is a motor having forward and reverse rotation functions, and when the driving motor 4 rotates forward, the rotation shaft 9 moves axially toward one side of the grinding cylinder 11, and when the driving motor 4 rotates backward, the rotation shaft 9 moves axially toward the other side of the grinding cylinder 11.
The number of the feeding holes 1101 formed in the grinding cylinder 11 is two, and the feeding holes 1101 are arranged at the two axial ends of the grinding cylinder 11. In order to facilitate feeding and discharging, as shown in fig. 1 and 2, a feeding port 1101 is disposed at the top of the grinding drum 11, and two discharging ports 1102 are both opened at the bottom of the grinding drum 11. The feeding opening 1101 is also provided with a feeding switch controlled by an electromagnetic valve, and the feeding switch controls whether the feeding opening 1101 discharges into the outer spiral groove or not according to the forward rotation and the reverse rotation of the driving motor 4 and the axial movement stroke of the grinding rod 10.
As another discharging mode, a discharging channel for discharging the ground ball is formed between the end of the grinding cylinder 11 and the grinding rod 10, when the external thread groove of the grinding rod 10 exceeds the end of the grinding cylinder 11, the ground ball in the external thread groove loses the constraint of the grinding cylinder 11 and is separated from the external bolt groove to complete discharging. In addition, a brush (not shown in the figure) corresponding to the outer spiral groove is arranged at the end part of the grinding cylinder 11, and the ball body in the outer spiral groove can be cleaned by the brush, so that the discharging efficiency is further improved.
The outside of grinding vessel 11 is provided with the hoop, and the hoop is prior art product, like clamp, throat hoop etc. the hoop in the invention is the clamp of cover setting in grinding vessel 11 outside, through adjusting the degree of hoop and then can adjust grinding vessel 11 and grinding rod 10 degree of compressing tightly to the spheroid of grinding different sizes, because the diameter of spheroid is less, the slight change of grinding vessel 11 can change the grinding diameter of spheroid. Likewise, a heating rod is arranged in the grinding rod 10, the grinding rod 10 is heated by the heating rod according to the principle of thermal expansion and cold contraction, the compression degree of the grinding rod 10 and the grinding cylinder 11 can be changed by the expansion degree of the heated grinding rod 10, and then the grinding rod is suitable for grinding spheres with different diameters.
The inner wall of the grinding cylinder 11 is set to be a smooth cylindrical surface, after the ball to be ground enters the outer spiral groove, the grinding rod 10 pushes the ball to move spirally, the ball forms three-point contact with the two side walls of the outer spiral groove and the inner wall of the grinding cylinder 11, the ball to be ground finishes the impact, impact and self-grinding operation between the grinding rod 10 and the grinding cylinder 11, and the ball to be ground gradually tends to be in a regular shape along with the spiral advance of the grinding rod 10, so that the ball to be ground is precisely ground. When the ball in the outer spiral groove is moved to the discharge hole 1102, the ball is discharged through the discharge hole 1102, or the ball in the outer spiral groove moves to the outside of the grinding cylinder 11 along with the grinding rod 10, the ball loses the constraint of the grinding cylinder 11, and is separated from the outer spiral groove to finish discharging. Further, a vibration exciter is provided on the end surface of the grinding cylinder 11 to supply high-frequency axial vibration to the grinding cylinder 11 to improve the grinding efficiency.
A grinding shaping method of soft metal spheres is characterized in that a sphere to be ground is added through a feed inlet 1101 of a grinding cylinder 11 on a grinding device, the sphere to be ground falls into a spiral groove on the surface of a grinding rod 10, the grinding rod 10 rotates in the grinding cylinder 11 and moves axially, so that the sphere to be ground, the spiral groove and the inner wall of the grinding cylinder 11 are mutually extruded and rubbed, and adjacent spheres to be ground roll relatively, so that the surface of the sphere to be ground is ground, and when the sphere in the spiral groove moves to a discharge hole 1102 at the bottom of the grinding cylinder 11, the sphere is discharged through the discharge hole 1102, and grinding is completed. During the polishing, a certain amount of polishing paste is injected into the polishing cylinder 11 as needed.
The specific operation process of the grinding and shaping method is as follows:
1) As shown in fig. 3, the driving motor 4 is started to rotate positively, the grinding rod 10 rotates and moves axially to the left, and meanwhile, the feeding switch at the feeding port 1101 is turned on, and the ball to be ground is added into the outer spiral groove of the grinding rod 10 from the feeding port 1101; the ball to be ground is ground in the outer spiral groove, moves to a discharge hole 1102 at the left end of the grinding cylinder 11 along with the outer spiral groove, and is discharged through the discharge hole 1102;
2) When the grinding rod 10 moves to the position shown in fig. 4, the motor is started to rotate reversely, the grinding rod 10 rotates and moves axially to the right, meanwhile, the electromagnetic valve controls the feed switch at the feed port 1101 to be closed, and the balls which enter the outer spiral groove of the grinding rod 10 but are not discharged start to move to the right along with the grinding rod 10;
3) When the grinding rod 10 moves to the position shown in fig. 5, the outer spiral groove of the grinding rod 10 is opened and corresponds to the right-end discharge port 1102, the ball in the outer spiral groove is discharged from the right-end discharge port 1102, at this time, the feed switch at the feed port 1101 is restarted to feed from the feed port 1101, the grinding rod 10 continues to move to the right side, and after grinding, the ball in the outer spiral groove moves to the discharge port 1102 at the right end of the grinding cylinder 11 along with the outer spiral groove and is discharged from the discharge port 1102;
4) When the grinding rod 10 moves to the position shown in fig. 6, the driving motor 4 is started to rotate positively, and the feed switch is closed;
5) When the grinding rod 10 moves to the position shown in fig. 7, the driving motor 4 is kept to rotate positively, and the feeding switch is turned on;
6) Repeating the operation steps 1) to 5), and finishing the grinding of the sphere to be ground.
It should be noted that, in actual use, the length of the grinding cylinder 11 is generally set to be 1/3 of the length of the grinding rod 10, when the driving motor 4 changes the rotation direction to change the grinding rod 10, the non-discharged balls in the external thread groove of the grinding rod 10 occupy 1/6 of the length of the grinding rod, the non-discharged balls are moved to the discharge port after the grinding rod 10 is changed to be discharged, that is, 1/6 of the effective grinding stroke is lost, and the rest 5/6 strokes can be used for grinding new materials, which is acceptable in practice.
Example 2
The main structure of this embodiment is the same as that of embodiment 1, except that the inner wall of the grinding cylinder 11 has an inner spiral groove (not shown) corresponding to the notch of the outer spiral groove, when the grinding rod 10 is in the grinding cylinder 11, the outer spiral groove and the inner spiral groove are butted to form a spiral channel, the ball to be ground enters the spiral channel, and the ball to be ground advances spirally together with the grinding rod 10 along with the movement of the grinding rod 10, so as to finally realize the grinding of the ball to be ground. The usage method of this embodiment is the same as that of the embodiment, and will not be described here again.
Example 3
The main structure of this embodiment is the same as that of embodiment 1, except that the grinding cylinder 11 sleeved on the grinding rod 10 includes a grinding cylinder 11 with a smooth inner wall and a grinding cylinder 11 with an internal thread groove on the inner wall, the internal thread groove corresponds to the notch of the external thread groove on the outer wall of the grinding rod 10, and this grinding shaping method can realize rough grinding and fine grinding of the ball, wherein the grinding cylinder 11 with an internal thread groove on the inner wall is used for rough grinding of the ball, and the grinding cylinder 11 with a smooth inner wall is used for fine grinding of the ball.
When the grinding and shaping method is used in the embodiment, coarse grinding is finished through the grinding cylinder 11 with the thread groove on the inner wall, and the ball body after coarse grinding is put into the grinding cylinder 11 with the smooth inner wall again to finish fine grinding.
Claims (8)
1. The grinding and shaping device for the soft metal spheres is characterized by comprising a grinding cylinder (11), a grinding rod (10) movably sleeved in the grinding cylinder (11) and a power mechanism for driving the grinding rod (10) to move, wherein an outer spiral groove is formed in the outer wall of the grinding rod (10), a feed inlet (1101) for the spheres to be ground to enter the outer spiral groove is formed in the grinding cylinder (11), and the grinding rod (10) can rotate and axially move in the grinding cylinder (11) under the driving of the power mechanism so as to grind the spheres to be ground in the outer spiral groove;
A discharge hole (1102) for discharging the ground ball is formed in the grinding cylinder (11), or a discharge channel for discharging the ground ball is formed between the end part of the grinding cylinder (11) and the grinding rod (10);
The grinding rod (10) is internally and axially penetrated with a rotating shaft (9), the rotating shaft (9) is fixedly connected with the grinding rod (10), the power mechanism comprises a driving motor (4) fixedly arranged on the base (1) and a standard ball screw (7), a first supporting component (13) is arranged on the rotating shaft (9), the first supporting component (13) comprises a first sleeve (1301) and a first bearing (1302) sleeved outside the first sleeve (1301), the first bearing (1302) is fixed on the base (1), the first sleeve (1301) is sleeved outside the rotating shaft (9) and is in key connection with the rotating shaft (9), a belt pulley (14) is fixedly sleeved outside the first sleeve (1301), the driving motor (4) is in transmission connection with the belt pulley (14) through a driving belt (15) to drive the rotating shaft (9) to rotate, a nut (702) of the standard ball screw (7) is fixedly arranged on the base (1), a screw (701) of the standard ball screw (7) is connected with the rotating shaft (9) and is coaxially distributed, and the standard ball screw (7) is used for driving the rotating shaft (9) to axially move simultaneously.
2. A grinding and shaping device for soft metal spheres according to claim 1, characterized in that the number of feed openings (1101) is one and is located in the middle of the grinding drum (11), and the number of discharge openings (1102) is two and is located at both ends of the grinding drum (11), respectively.
3. A grinding and shaping device for soft metal spheres according to claim 1, characterized in that the inner wall of the grinding cylinder (11) is provided as a smooth cylindrical surface.
4. The grinding and shaping device for soft metal spheres according to claim 1, wherein the inner wall of the grinding cylinder (11) is provided with an inner spiral groove corresponding to the notch of the outer spiral groove.
5. The grinding and shaping device for soft metal spheres according to claim 1, wherein at least one grinding cylinder (11) with smooth inner wall and at least one grinding cylinder (11) with inner spiral groove on the inner wall are sleeved outside the grinding rod (10), and the inner spiral groove corresponds to the notch of the outer spiral groove on the outer wall of the grinding rod (10).
6. The grinding and shaping device for soft metal spheres according to claim 1, wherein a clamping piece capable of adjusting the compression degree of the grinding cylinder (11) and the grinding rod (10) is arranged outside the grinding cylinder (11), and a heating rod capable of adjusting the expansion degree of the grinding rod (10) is arranged inside the grinding rod (10).
7. The grinding and shaping device for soft metal spheres according to claim 1, characterized in that a second supporting component (12) is arranged on the rotating shaft (9), the second supporting component (12) and the first supporting component (13) are respectively positioned on two sides of the grinding cylinder (11), the second supporting component (12) comprises a second bearing (1202) and a second sleeve (1201) arranged on the inner ring of the second bearing (1202), the second bearing (1202) is fixedly arranged on the base (1), and the rotating shaft (9) is connected with the second sleeve (1201) in a key mode.
8. A method for grinding and shaping soft metal spheres based on a grinding and shaping device according to any one of claims 1-7, characterized in that a grinding cylinder (11) is sleeved outside a grinding rod (10), the spheres to be ground are placed into an outer spiral groove on the outer wall of the grinding rod (10), the grinding rod (10) is driven to rotate in the grinding cylinder (11) and axially move, so that the spheres to be ground are mutually extruded and rubbed with the groove walls of the outer spiral groove, the inner wall of the grinding cylinder (11) and the adjacent spheres to be ground, and the spheres to be ground are ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| EP0358790A1 (en) * | 1988-09-14 | 1990-03-21 | Chung Yeh Machinery & Hardware Corp. | Milling system |
| JPH10547A (en) * | 1996-04-18 | 1998-01-06 | Thk Kk | Grinding work method for ball screw shaft |
| JP2002292520A (en) * | 2001-01-23 | 2002-10-08 | Senjo Seiki Kk | Lapping machine and it's operating method |
| JP2005254375A (en) * | 2004-03-10 | 2005-09-22 | Kss Kk | Lapping method of ball screw surface and lapping device for use in it |
| CN102646605A (en) * | 2012-01-12 | 2012-08-22 | 深圳市木森科技有限公司 | Method for reforming solder ball |
| CN109531358A (en) * | 2018-11-13 | 2019-03-29 | 苏州华亦扬传动科技有限公司 | Ball-screw processing technology, the outer rollaway nest grinding tool being related to and ball screw assembly, |
| CN208727639U (en) * | 2018-07-04 | 2019-04-12 | 山东汇龙色釉新材料科技有限公司 | A kind of environment-friendly type nano grinding sand mill |
| CN215029434U (en) * | 2020-11-26 | 2021-12-07 | 张家港市鑫港涂装有限公司 | A powder grinding device with high stability |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0358790A1 (en) * | 1988-09-14 | 1990-03-21 | Chung Yeh Machinery & Hardware Corp. | Milling system |
| JPH10547A (en) * | 1996-04-18 | 1998-01-06 | Thk Kk | Grinding work method for ball screw shaft |
| JP2002292520A (en) * | 2001-01-23 | 2002-10-08 | Senjo Seiki Kk | Lapping machine and it's operating method |
| JP2005254375A (en) * | 2004-03-10 | 2005-09-22 | Kss Kk | Lapping method of ball screw surface and lapping device for use in it |
| CN102646605A (en) * | 2012-01-12 | 2012-08-22 | 深圳市木森科技有限公司 | Method for reforming solder ball |
| CN208727639U (en) * | 2018-07-04 | 2019-04-12 | 山东汇龙色釉新材料科技有限公司 | A kind of environment-friendly type nano grinding sand mill |
| CN109531358A (en) * | 2018-11-13 | 2019-03-29 | 苏州华亦扬传动科技有限公司 | Ball-screw processing technology, the outer rollaway nest grinding tool being related to and ball screw assembly, |
| CN215029434U (en) * | 2020-11-26 | 2021-12-07 | 张家港市鑫港涂装有限公司 | A powder grinding device with high stability |
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|---|---|
| CN115212976A (en) | 2022-10-21 |
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