CN109015266A - A kind of belt sander - Google Patents
A kind of belt sander Download PDFInfo
- Publication number
- CN109015266A CN109015266A CN201811006066.6A CN201811006066A CN109015266A CN 109015266 A CN109015266 A CN 109015266A CN 201811006066 A CN201811006066 A CN 201811006066A CN 109015266 A CN109015266 A CN 109015266A
- Authority
- CN
- China
- Prior art keywords
- spring
- motion bar
- swing arm
- connecting rod
- fixing seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003628 erosive effect Effects 0.000 claims abstract description 25
- 229920002635 polyurethane Polymers 0.000 claims description 19
- 239000004814 polyurethane Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 3
- 229910021529 ammonia Inorganic materials 0.000 claims 2
- 150000002148 esters Chemical class 0.000 claims 1
- -1 poly- ammonia Ester Chemical class 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000005498 polishing Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
This application provides a kind of belt sanders, including rack, erosion control buffer gear and the second swing arm, second swing arm is arranged in the rack by branch spot wobble, the erosion control buffer gear is arranged between the rack and second swing arm, it is characterized in that, the erosion control buffer gear includes: fixing seat, motion bar, first spring, mobile bar, connecting rod and second spring, the fixing seat is fixed in the rack, the left end of the motion bar is movably arranged in the fixing seat, the left end of the mobile bar is set in the right end of the motion bar, first spring is arranged between the motion bar and the mobile bar, the left end of the connecting rod is set in the right end of the mobile bar, the right end of the connecting rod is articulated in second swing arm, the second spring is arranged between the mobile bar and the connecting rod.The erosion control buffer gear of belt sander provided by the present application has good buffering effect.
Description
Technical field
The present invention relates to a kind of belt sanders, more particularly to a kind of belt sander.
Background technique
Belt sander is a kind of common mechanical equipment, is had a wide range of applications in industries such as hardware, hot-water heatings.
Publication CN201410396783.X discloses a kind of belt sander, including PLC control system, servo-ratio
Example valve, pressure cylinder, swing arm, support arm, polishing wheel, swelling wheel and driving mechanism；PLC control system and servo proportion connect
It connects, industrial gas sources access servo proportion, and gas source adjusted is connected to pressure cylinder by tracheae by servo proportion；Pressure gas
Cylinder rod is connected with swing arm one end, and by branch spot wobble, swing arm other end connects active supporting arm for swing arm, and pressure cylinder drives swing arm
It swings, and swing arm driving support arm is mobile；Driving mechanism, polishing wheel and swelling wheel are mounted on support arm, driving mechanism driving
Polishing wheel rotation, and polishing wheel drives swelling wheel to rotate by abrasive band, swing arm is set as the first swing arm and the second swing arm two, the
By branch spot wobble, one end connects support arm for two swing arms, and the other end connects the pressure cylinder other end by anticollision buffer gear.But
It finds in actual use, the buffering effect of existing anticollision buffer gear is poor, so that equipment is also easy to produce vibration, influences
Processing quality.
In conclusion how to promote the buffering effect of anticollision buffer gear, being that those skilled in the art are urgently to be solved is asked
Topic.
Summary of the invention
The object of the present invention is to provide a kind of belt sanders, and it is poor to solve existing anticollision buffer gear buffering effect
The problem of.
In order to solve the above technical problems, the invention provides the following technical scheme: a kind of belt sander, including it is rack, anti-
Buffer gear and the second swing arm are rushed, second swing arm is arranged in the rack by branch spot wobble, the erosion control buffer
Structure is arranged between the rack and second swing arm, which is characterized in that the erosion control buffer gear includes: fixing seat, work
Lever, the first spring, mobile bar, connecting rod and second spring, the fixing seat are fixed in the rack, a left side for the motion bar
End is movably arranged in the fixing seat, and the left end of the mobile bar is set in the right end of the motion bar, first spring
It is arranged between the motion bar and the mobile bar, the left end of the connecting rod is set in the right end of the mobile bar, the company
The right end of bar is articulated in second swing arm, and the second spring is arranged between the mobile bar and the connecting rod.
Further, the guiding axis of the left end of the mobile bar is equipped with pilot hole, and the periphery of the guiding axis is equipped with
The right axle portion of lug, the motion bar is movably arranged in the pilot hole, the right axle portion be equipped with receiving hole, described first
The left end of spring is arranged in the receiving hole, and the left end of first spring is kept out on the bottom wall of the receiving hole,
The right end of first spring is placed in the pilot hole, and the right end of first spring is kept out in the pilot hole
On bottom wall.
Further, the connecting rod has the sequentially connected left body of rod, spherical portion and the right body of rod, the right side of the right body of rod
End is articulated in second swing arm, and the long axis of the right end of the mobile bar passes through the preceding hole of the left body of rod to the left body of rod
Metapore in extend, the second spring is set on the long axis, and the left end of the second spring is kept out in described
On the right side of axis, the right end of the second spring is kept out on the bottom wall in the preceding hole.
Further, the inner wall of the metapore is equipped with several annular grooves, is embedded with several balls in the annular groove,
The ball is kept out on the peripheral wall of the long axis.
Further, the bottom wall of the pilot hole is equipped with protrusion, and the right end of first spring is set in described convex
On rising.
Further, the left end of the left body of rod of the connecting rod is equipped with shield, and the shield is movably set in described
On the axis at the middle part of mobile bar.
Further, the erosion control buffer gear further includes polyurethane globe body and end cap, and the polyurethane globe body setting exists
Between the fixing seat and the motion bar, the fixing seat is equipped with counterbore, and the bottom wall of the counterbore is equipped with pit, described
The left part of polyurethane globe body contradicts in the pit, and the left axle portion of the motion bar is equipped with half ball-and-socket, and the left axle portion is stretched
Enter in the counterbore, the right part of the polyurethane globe body is placed in half ball-and-socket, and the end cap is fixed on the fixing seat
On, the shoulder of the end cap is set on the motion bar, and the concave spherical surface of the shoulder contradicts on a left side for the motion bar
On the convex spherical of axle portion.
Further, the erosion control buffer gear further includes several steel balls, and the steel ball is arranged in the polyurethane
Between sphere and half ball-and-socket, the left end in the left axle portion is equipped with blanking cover, and the blanking cover is set on the polyurethane globe body.
It can be seen from above-mentioned technical proposal the invention has the following advantages:
In the present invention, the first spring and second spring compression assembly, so that when the second swing arm quick response is floated, first
Buffering is played the role of in the generation deformation that spring and second spring are able to respond, and the first spring and second spring superposition use, energy
The generation for effectively avoiding erosion control buffer gear caused by damaging because of single spring fatigue from failing；
Sliding friction between long axis and the inner wall of metapore is effectively changed into rolling friction by the setting of several balls,
It is greatly reduced frictional resistance, effectively promotes the buffering effect of erosion control buffer gear；
Sliding friction between polyurethane globe body and half ball-and-socket is effectively changed into rolling and rubbed by the setting of several steel balls
It wipes, so that motion bar is more smooth when rotating relative to fixed seat, so that the buffering effect of erosion control buffer gear is more preferable；
In conclusion the erosion control buffer gear in the present invention has good buffering effect.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is partial structural diagram of the invention.
Fig. 3 is another partial structural diagram of the invention.
Fig. 4 is another partial structural diagram of the invention.
Fig. 5 is the enlarged structure schematic diagram at the B in Fig. 4.
Fig. 6 is the enlarged structure schematic diagram at the C in Fig. 5.
Description of symbols: rack 10, erosion control buffer gear 20, fixing seat 21, counterbore 211, pit 212, polyurethane ball
Body 22, steel ball 23, end cap 24, shoulder 241, concave spherical surface 2411, motion bar 25, half ball-and-socket 251, receiving hole 252, left axle portion 253,
Convex spherical 2531, right axle portion 254, blanking cover 255, the first spring 26, mobile bar 27, guiding axis 271, pilot hole 2711, lug
2712, protrusion 2713, axis 272, long axis 273, connecting rod 28, the left body of rod 281, shield 2811, preceding hole 2812, metapore 2813,
Spherical portion 282, the right body of rod 283, second spring 29, ball 30, fulcrum 41, the second swing arm 43.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Below with reference to Fig. 1 to Fig. 6, the invention will be further described, a kind of belt sander as shown in Figure 1 and Figure 2, packet
Including rack 10, erosion control buffer gear 20 and the second swing arm 43, the second swing arm 43 is swung by fulcrum 41 to be arranged in rack 10, is prevented
It rushes buffer gear 20 to be arranged between rack 10 and the second swing arm 43, erosion control buffer gear 20 includes: fixing seat 21, motion bar
25, the first spring 26, mobile bar 27, connecting rod 28 and second spring 29, fixing seat 21 are fixed in rack 10, a left side for motion bar 25
End is movably arranged in fixing seat 21, and the left end of mobile bar 27 is set in the right end of motion bar 25, and the first spring 26 is arranged in work
Between lever 25 and mobile bar 27, the left end of connecting rod 28 is set in the right end of mobile bar 27, and the right end of connecting rod 28 is articulated in second
In swing arm 43, second spring 29 is arranged between mobile bar 27 and connecting rod 28, when 43 quick response of the second swing arm is floated, first
Spring 26 and second spring 29 can play buffer function, are effectively prevented from equipment and generate the hair for vibrating and then influencing processing quality
It is raw.
In the present embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, the guiding axis 271 of the left end of mobile bar 27 is equipped with pilot hole
2711, the periphery of guiding axis 271 is equipped with lug 2712, and the right axle portion 254 of motion bar 25 is movably arranged in pilot hole 2711,
Right axle portion 254 is equipped with receiving hole 252, and the left end of the first spring 26 is arranged in receiving hole 252, and a left side for the first spring 26
End is kept out on the bottom wall of receiving hole 252, and the right end of the first spring 26 is placed in pilot hole 2711, and the first spring 26
Right end is kept out on the bottom wall of pilot hole 2711, and the bottom wall of pilot hole 2711 is equipped with protrusion 2713, the right end of the first spring 26
It is set in protrusion 2713, the compression assembly of the first spring 26, so that when 43 quick response of the second swing arm is floated, the first spring 26
The generation deformation being able to respond, plays the role of buffering.
In the present embodiment, as shown in Figure 1, Figure 2, Figure 4 shows, connecting rod 28 has the sequentially connected left body of rod 281, spherical portion 282
With the right body of rod 283, the right end of the right body of rod 283 is articulated in the second swing arm 43, and the long axis 273 of the right end of mobile bar 27 passes through left bar
Extend in the metapore 2813 of the preceding hole 2812 of body 281 body of rod 281 to the left, second spring 29 is set on long axis 273, and second
The left end of spring 29 is kept out on the right side of axis 272, and the right end of second spring 29 is kept out on the bottom wall in preceding hole 2812, even
The left end of the left body of rod 281 of bar 28 is equipped with shield 2811, and shield 2811 is movably set in the axis at the middle part of mobile bar 27
On 272, the compression assembly of second spring 29, so that when 43 quick response of the second swing arm is floated, what second spring 29 was able to respond
Deformation is generated, buffering is played the role of, the first spring 26 and the superposition of second spring 29 are used, can effectively be avoided because single spring is tired
The bad generation for causing erosion control buffer gear 20 to fail of strain.
In the present embodiment, as Figure 1 and Figure 4, the inner wall of metapore 2813 is equipped with several annular grooves, is embedded in annular groove
Several balls 30, ball 30 are kept out on the peripheral wall of long axis 273, the setting of several balls 30 effectively by long axis 273 with
Sliding friction between the inner wall of metapore 2813 is changed into rolling friction, is greatly reduced frictional resistance, effectively promotion erosion control
The buffering effect of buffer gear 20.
In the present embodiment, as shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6, erosion control buffer gear 20 further includes polyurethane globe body 22 and end
Lid 24, polyurethane globe body 22 are arranged between fixing seat 21 and motion bar 25, and fixing seat 21 is equipped with counterbore 211, counterbore 211
Bottom wall is equipped with pit 212, and the left part of polyurethane globe body 22 contradicts in pit 212, and the left axle portion 253 of motion bar 25 is equipped with
Half ball-and-socket 251, left axle portion 253 protrude into counterbore 211, and the right part of polyurethane globe body 22 is placed in half ball-and-socket 251, and end cap 24 is solid
It is scheduled in fixing seat 21, the shoulder 241 of end cap 24 is set on motion bar 25, and the concave spherical surface 2411 of shoulder 241 contradicts
On the convex spherical 2531 in the left axle portion 253 of motion bar 25, the relatively fixed seat of motion bar 25 when the second swing arm 43 is swung
21 generate rotation.
In the present embodiment, as shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6, erosion control buffer gear 20 further includes several steel balls 23, steel
Ball 23 is arranged between polyurethane globe body 22 and half ball-and-socket 251, and the left end in left axle portion 253 is equipped with blanking cover 255, and blanking cover 255 is arranged
On polyurethane globe body 22, several steel balls 23 are arranged effectively by the sliding between polyurethane globe body 22 and half ball-and-socket 251
Friction is changed into rolling friction, so that motion bar 25 is more smooth when rotating relative to fixed seat 21, so that erosion control buffer
The buffering effect of structure 20 is more preferable.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of belt sander, including rack (10), erosion control buffer gear (20) and the second swing arm (43), second swing arm
(43) it is swung and is arranged on the rack (10) by fulcrum (41), the erosion control buffer gear (20) is arranged in the rack
(10) between second swing arm (43), which is characterized in that the erosion control buffer gear (20) includes: fixing seat (21), lives
Lever (25), the first spring (26), mobile bar (27), connecting rod (28) and second spring (29), the fixing seat (21) are fixed on
On the rack (10), the left end of the motion bar (25) is movably arranged on the fixing seat (21), the mobile bar (27)
Left end be set in the right ends of the motion bar (25), first spring (26) is arranged in the motion bar (25) and the shifting
Between lever (27), the left end of the connecting rod (28) is set in the right end of the mobile bar (27), the right end of the connecting rod (28)
Be articulated on second swing arm (43), the second spring (29) setting the mobile bar (27) and the connecting rod (28) it
Between.
2. belt sander according to claim 1, which is characterized in that the guiding axis of the left end of the mobile bar (27)
(271) pilot hole (2711) are equipped with, the periphery of the guiding axis (271) is equipped with lug (2712), the motion bar (25)
Right axle portion (254) be movably arranged in the pilot hole (2711), the right axle portion (254) is equipped with receiving hole (252), institute
The left end setting of the first spring (26) is stated in the receiving hole (252), and the left end of first spring (26) is kept out
On the bottom wall of the receiving hole (252), the right end of first spring (26) is placed in the pilot hole (2711), and institute
The right end for stating the first spring (26) is kept out on the bottom wall of the pilot hole (2711).
3. belt sander according to claim 2, which is characterized in that the connecting rod (28) has sequentially connected left bar
The right end of body (281), spherical portion (282) and the right body of rod (283), the right body of rod (283) is articulated in second swing arm (43)
On, the long axis (273) of the right end of the mobile bar (27) passes through the preceding hole (2812) of the left body of rod (281) to the left body of rod
(281) extend in metapore (2813), the second spring (29) is set on the long axis (273), and second bullet
The left end of spring (29) is kept out on the right side of the axis (272), and the right end of the second spring (29) is kept out before described
On the bottom wall in hole (2812).
4. belt sander according to claim 3, which is characterized in that the inner wall of the metapore (2813) is equipped with several
A annular groove is embedded with several balls (30) in the annular groove, and the ball (30) keeps out the peripheral wall in the long axis (273)
On.
5. belt sander according to claim 2, which is characterized in that the bottom wall of the pilot hole (2711) is equipped with convex
It rises (2713), the right end of first spring (26) is set on raised (2713).
6. belt sander according to claim 3, which is characterized in that a left side for the left body of rod (281) of the connecting rod (28)
End is equipped with shield (2811), and the shield (2811) is movably set in the axis (272) at the middle part of the mobile bar (27)
On.
7. belt sander according to claim 1, which is characterized in that the erosion control buffer gear (20) further includes poly- ammonia
Ester sphere (22) and end cap (24), the polyurethane globe body (22) setting the fixing seat (21) and the motion bar (25) it
Between, the fixing seat (21) is equipped with counterbore (211), and the bottom wall of the counterbore (211) is equipped with pit (212), the poly- ammonia
The left part of ester sphere (22) contradicts in the pit (212), and the left axle portion (253) of the motion bar (25) is equipped with half ball-and-socket
(251), the left axle portion (253) is protruded into the counterbore (211), and the right part of the polyurethane globe body (22) is placed in described half
In ball-and-socket (251), the end cap (24) is fixed on the fixing seat (21), and the shoulder (241) of the end cap (24) is set in
On the motion bar (25), and the concave spherical surface (2411) of the shoulder (241) contradicts in the left axle portion of the motion bar (25)
(253) on convex spherical (2531).
8. belt sander according to claim 7, which is characterized in that the erosion control buffer gear (20) further includes several
A steel ball (23), the steel ball (23) are arranged between the polyurethane globe body (22) and half ball-and-socket (251), the left axle
The left end in portion (253) is equipped with blanking cover (255), and the blanking cover (255) is set on the polyurethane globe body (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811006066.6A CN109015266A (en) | 2018-08-30 | 2018-08-30 | A kind of belt sander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811006066.6A CN109015266A (en) | 2018-08-30 | 2018-08-30 | A kind of belt sander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109015266A true CN109015266A (en) | 2018-12-18 |
Family
ID=64626336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811006066.6A Pending CN109015266A (en) | 2018-08-30 | 2018-08-30 | A kind of belt sander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109015266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112405251A (en) * | 2020-12-01 | 2021-02-26 | 宁波丞智科技有限公司 | Passive compliant mechanism, grinding head assembly, contact force calculation method and abrasive belt machine |
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| CN2816465Y (en) * | 2005-09-06 | 2006-09-13 | 广州有色金属研究院 | Fitting structure of reciprocation axle and axle sleeve in reciprocation box |
| CN2837599Y (en) * | 2005-11-03 | 2006-11-15 | 中国石油天然气集团公司 | Sealing ball pivot cardan shaft |
| CN102359482A (en) * | 2011-11-09 | 2012-02-22 | 王昌朋 | Spherical joint seat |
| CN203050548U (en) * | 2013-02-06 | 2013-07-10 | 成都大漠石油机械有限公司 | Sealing cardan shaft for well drilling |
| CN103322028A (en) * | 2013-07-04 | 2013-09-25 | 中国科学院长春光学精密机械与物理研究所 | Precise high-rigidity flexible spherical hinge |
| CN104162827A (en) * | 2014-08-13 | 2014-11-26 | 厦门思尔特机器人系统有限公司 | Belt sander |
| CN104405782A (en) * | 2014-11-26 | 2015-03-11 | 四川法斯特机械制造有限责任公司 | Universal connector |
| CN107842558A (en) * | 2017-11-16 | 2018-03-27 | 江苏丰禾食品有限公司 | A kind of electromechanics bearing of strong shock resistance |
| CN108397525A (en) * | 2018-03-15 | 2018-08-14 | 温州职业技术学院 | A kind of belt tension device |
-
2018
- 2018-08-30 CN CN201811006066.6A patent/CN109015266A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795546Y (en) * | 2005-04-14 | 2006-07-12 | 安仲伟 | Shock reducer of engine |
| CN2816465Y (en) * | 2005-09-06 | 2006-09-13 | 广州有色金属研究院 | Fitting structure of reciprocation axle and axle sleeve in reciprocation box |
| CN2837599Y (en) * | 2005-11-03 | 2006-11-15 | 中国石油天然气集团公司 | Sealing ball pivot cardan shaft |
| CN102359482A (en) * | 2011-11-09 | 2012-02-22 | 王昌朋 | Spherical joint seat |
| CN203050548U (en) * | 2013-02-06 | 2013-07-10 | 成都大漠石油机械有限公司 | Sealing cardan shaft for well drilling |
| CN103322028A (en) * | 2013-07-04 | 2013-09-25 | 中国科学院长春光学精密机械与物理研究所 | Precise high-rigidity flexible spherical hinge |
| CN104162827A (en) * | 2014-08-13 | 2014-11-26 | 厦门思尔特机器人系统有限公司 | Belt sander |
| CN104405782A (en) * | 2014-11-26 | 2015-03-11 | 四川法斯特机械制造有限责任公司 | Universal connector |
| CN107842558A (en) * | 2017-11-16 | 2018-03-27 | 江苏丰禾食品有限公司 | A kind of electromechanics bearing of strong shock resistance |
| CN108397525A (en) * | 2018-03-15 | 2018-08-14 | 温州职业技术学院 | A kind of belt tension device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112405251A (en) * | 2020-12-01 | 2021-02-26 | 宁波丞智科技有限公司 | Passive compliant mechanism, grinding head assembly, contact force calculation method and abrasive belt machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |