CN117325104A - Probe holder for probe material - Google Patents
Probe holder for probe material Download PDFInfo
- Publication number
- CN117325104A CN117325104A CN202311631445.5A CN202311631445A CN117325104A CN 117325104 A CN117325104 A CN 117325104A CN 202311631445 A CN202311631445 A CN 202311631445A CN 117325104 A CN117325104 A CN 117325104A
- Authority
- CN
- China
- Prior art keywords
- needle
- needle clamping
- pin
- contact
- clamping
- 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
- 239000000523 sample Substances 0.000 title claims abstract description 88
- 239000000463 material Substances 0.000 title claims abstract description 63
- 230000006835 compression Effects 0.000 claims description 32
- 238000007906 compression Methods 0.000 claims description 32
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention relates to a probe material needle holder which is used for clamping probe materials during full-automatic processing of the probe materials. The needle clamping device comprises a needle clamping shell, a needle clamping lever, a needle clamping spring, a needle clamping shell, a needle clamping spring, a reset spring, a needle clamping shell and a needle clamping lever. The probe material needle holder solves the technical problem that no suitable probe material clamping device exists in the market when the full-automatic probe production equipment is designed.
Description
Technical Field
The invention relates to the technical field of semiconductor equipment, in particular to a probe holder for a probe material.
Background
Probes are a critical test tool for the semiconductor industry for contact testing the performance of electronic devices during wafer or chip production. In designing a product of a probe automatic production apparatus, a member for holding a probe material is required, and there is no suitable apparatus for holding a probe material in the market, so that a technician in the probe automatic production apparatus needs a new apparatus for improving and solving the above-mentioned problems.
Disclosure of Invention
In view of the above, the probe material needle holder is provided, which can clamp and unclamp the probe material, and can meet the requirements of probe automation equipment, thereby greatly enhancing the experience of users.
The utility model provides a probe material needle holder for press from both sides the probe material when fully automatic processing to the probe material, probe material needle holder includes needle clamping shell, compression axle, needle clamping pressure spring, needle clamping lever, lever round pin axle and reset spring.
Further, the needle clamping shell one end has the needle clamping head, the needle clamping lever passes through the lever round pin axle with the rotatory hinged joint of needle clamping shell, the needle clamping shell is kept away from the other end of needle clamping head is equipped with the axial and compresses tightly the hole, compress tightly the axle slidable install in the axial compresses tightly the hole, compress tightly axle one end expose in the needle clamping shell, compress tightly the axle expose in the one end of needle clamping shell has the plug, the needle clamping spring suit install in compress tightly the axle expose in the one end of needle clamping shell, the needle clamping spring can not pass through when compressing tightly the axle and remove the plug, reset spring close contact suit install in the needle clamping shell with the outside of needle clamping lever.
Further, a needle pressing groove is formed in the outer side of the needle clamping head, a clamping head is arranged at one end of the needle clamping lever, the clamping head can enter the needle pressing groove, the clamping head can be in contact and pressing with a groove surface of the needle pressing groove, the clamping head is used for clamping probe materials placed in the needle pressing groove, a contact protruding end is arranged at the other end of the needle clamping lever, a contact inclined surface end is arranged at one end of the pressing shaft, which is positioned in the needle clamping shell, of the clamping shaft, when the jacking head is not subjected to external force, the jacking head presses the needle clamping spring to enable the contact inclined surface end to be in tight pressing contact with the contact protruding end, the contact inclined surface end is in tight pressing contact with the contact protruding end to enable the clamping head of the needle clamping lever to enter the needle pressing groove to clamp the probe materials, when the jacking head is subjected to external force, the contact inclined surface end is separated from the contact protruding end, and the clamping head is separated from the groove surface of the needle pressing groove to be in contact with the probe materials.
Further, the return spring is located at a position between the lever pin shaft and the contact protruding end.
Further, the needle clamping head is further provided with a needle clamping hole, the needle clamping hole is used for penetrating the probe material, the needle pressing groove divides the needle clamping hole into two sections, and the two sections of the needle clamping hole are used for radially positioning the probe material.
In some embodiments, the contact beveled end is out of contact with the contact protruding end when the plug is pushed by an external force generated by a cylinder moving part or an electric cylinder moving part or a motor-driven mechanism moving part.
In some embodiments, the needle holder housing has a retaining ring and the needle holder lever has a raised stop, the retaining ring and the raised stop locating the return spring between the lever pin and the contact raised end.
Further, the reset spring can elastically stretch and deform, when the contact inclined surface end and the contact protruding end are tightly pressed and contacted or separated, the reset spring is tightly contacted and sleeved on the outer sides of the needle clamping shell and the needle clamping lever, and when the contact inclined surface end and the contact protruding end are separated, the reset spring enables the clamping head to be lifted through leverage so as to loosen the probe material.
Preferably, the contact inclined surface end is provided with a large diameter end and a small neck end, a necking part is arranged between the large diameter end and the small neck end, the necking part is provided with an inclined surface or a smooth curved surface, the contact protruding end is positioned between the necking part and the end part of the axial compression hole, and the contact protruding end is contacted with the necking part when the plug is not subjected to external force.
In some embodiments, the contact ramp end cannot pass the contact projection end while sliding, the contact projection end slidably mounting the compression shaft in the axial compression bore without passing through the axial compression bore.
In some preferred embodiments, the needle clamping lever is a metal member and the clamping head has a resilient structure at least at the distal end.
In some preferred embodiments, the needle clamping hole has a guide angle towards the probe material entry side for the probe material to enter the needle clamping hole, the needle clamping hole being capable of accommodating the probe material entry.
Preferably, the plug and the compression shaft are integrally formed or are fixedly mounted on the compression shaft through threaded connection or threaded jackscrew ejection connection or pin penetrating connection or rivet connection, the plug is positioned on the outermost side of one end of the compression shaft exposed out of the needle clamping shell, the needle clamping head and the needle clamping shell are integrally formed or are fixedly mounted on the needle clamping shell through threaded connection or threaded jackscrew ejection connection or pin penetrating connection or rivet connection, and the needle clamping head is positioned on one end of the needle clamping shell.
The probe material clamping device can clamp and unclamp the probe material under the control of an automatic component such as a cylinder or an electric cylinder or a motor driven mechanism, so that the technical effect of automatically clamping and unclamping the probe material during full-automatic production of the probe is achieved, and the probe material clamping device has a wide application prospect.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is evident that the figures in the following description are only some embodiments of the invention, from which other figures can be obtained without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a cross-sectional view of a probe holder according to an embodiment of the present invention.
Fig. 2 is an enlarged partial cross-sectional view of a probe pin holder according to an embodiment of the present invention.
Fig. 3 is a perspective exploded view of a probe holder according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a needle clamping lever of a needle clamping device for a probe material according to an embodiment of the invention.
Fig. 5 is a schematic perspective view of a pressing shaft of a probe holder according to an embodiment of the present invention.
Wherein:
101. a needle clamping housing; 105. clamping a needle head; 112. a needle pressing groove; 130. an axial compression hole; 132. a pin hole is clamped;
150. a positioning ring; 160. a guide angle; 201. a compression shaft; 215. a contact ramp end; 221. a plug;
228. a large diameter end; 258. a small neck end; 270. a necked-down portion; 301. a needle clamping pressure spring; 401. a needle clamping lever;
403. a clamping head; 412. a contact bump end; 421. limiting the bulge; 501. the lever pin shaft; 601. and a reset spring.
Detailed Description
The present invention will be described in detail with reference to specific embodiments and drawings.
Referring to fig. 1-5, a probe material needle holder provided by an embodiment of the present invention is used for clamping probe materials during full-automatic processing of the probe materials, and the probe material needle holder includes a needle clamping housing 101, a pressing shaft 201, a needle clamping spring 301, a needle clamping lever 401, a lever pin 501 and a reset spring 601.
Specifically, one end of the needle clamping housing 101 is provided with a needle clamping head 105, the needle clamping lever 401 is connected with the needle clamping housing 101 through a lever pin shaft 501 in a rotating hinge manner, the other end of the needle clamping housing 101, which is far away from the needle clamping head 105, is provided with an axial compression hole 130, the compression shaft 201 is slidably installed in the axial compression hole 130, one end of the compression shaft 201 is exposed to the needle clamping housing 101 is provided with a top 221, the needle clamping spring 301 is installed on one end of the compression shaft 201 exposed to the needle clamping housing 101 in a sleeved manner, the needle clamping spring 301 cannot pass through the top 221 when the compression shaft 201 moves, and the reset spring 601 is installed on the outer sides of the needle clamping housing 101 and the needle clamping lever 401 in a tightly contacted manner. Specifically, the needle clamping housing 101 is formed by fixedly assembling two machined parts after machining.
Specifically, a needle pressing groove 112 is formed at the outer side of the needle clamping head 105, a clamping head 403 is formed at one end of the needle clamping lever 401, the clamping head 403 can enter the needle pressing groove 112, the clamping head 403 can be in contact and pressing with a groove surface of the needle pressing groove 112, the clamping head 403 is used for clamping the probe material placed in the needle pressing groove 112, a contact protruding end 412 is formed at the other end of the needle clamping lever 401, a contact inclined surface end 215 is formed at one end of the pressing shaft 201 located in the needle clamping shell 101, when the jacking head 221 is not subjected to external force, the jacking head 221 presses the needle clamping spring 301 to enable the contact inclined surface end 215 to be in tight pressing contact with the contact protruding end 412, the contact inclined surface end 215 is in tight pressing contact with the contact protruding end 412 to enable the clamping head 403 of the needle clamping lever 401 to enter the needle pressing groove 112 to clamp the probe material, when the jacking head 221 is subjected to external force, the contact inclined surface end 215 is separated from the contact protruding end 412, and the clamping head 403 is separated from the contact protruding end 412 when the contact protruding end 412 is separated from the needle pressing groove surface of the probe material.
Specifically, the return spring 601 is located between the lever pin 501 and the contact protruding end 412.
Further, the needle clamping head 105 further has a needle clamping hole 132, the needle clamping hole 132 is used for penetrating the probe material, the needle pressing groove 112 divides the needle clamping hole 132 into two sections, and both sections of the needle clamping hole 132 are used for radially positioning the probe material. Specifically, the pin clamping hole 132 is divided into two sections, the middle of which is separated by the pin pressing groove 112, so that the middle part of the probe material is pressed when the pin clamping head 403 presses the probe material, and thus when the probe material is clamped, two ends of the probe material are limited to slide only in the pin clamping hole 132, and the middle part of the probe material is pressed by the pin clamping head 403, thus preventing the sliding of the probe material, and thus, the clamping and positioning of the probe material can be well realized.
In some embodiments, the contact beveled end 215 is out of contact with the contact protruding end 412 when the plug 221 is pushed by an external force generated by a cylinder moving part or an electric cylinder moving part or a motor-driven mechanism moving part. In particular, most of the automation devices may take the form of a cylinder moving part pushing the plug 221, because of its simple structure, low cost and good reliability.
In some embodiments, the needle holder housing 101 has a retaining ring 150, the needle holder lever 401 has a raised stop 421, and the retaining ring 150 and the raised stop 421 position the return spring 601 between the lever pin 501 and the contact raised end 412.
Further, the return spring 601 can elastically deform in a telescopic manner, when the contact inclined surface end 215 is tightly pressed to contact with or separated from the contact protruding end 412, the return spring 601 is tightly contacted with and sleeved on the outer sides of the needle clamping shell 101 and the needle clamping lever 401, and when the contact inclined surface end 215 is separated from the contact protruding end 412, the return spring 601 lifts the clamping head 403 through leverage to release the probe material. Specifically, when the contact inclined surface end 215 of the pressing shaft 201 is disengaged from the contact protruding end 412 of the needle clamping lever 401, since the return spring 601 is located at a position between the lever pin 501 and the contact protruding end 412, and the return spring 601 is tightly mounted on the outer side of the needle clamping housing 101 and the needle clamping lever 401 in a sleeved manner, the end of the needle clamping lever 401 having the clamping head 403 is lifted up due to the clamping action of the return spring 601, and the probe material is released.
Preferably, the contact beveled end 215 has a large diameter end 228 and a small neck end 258, a necked-down portion 270 is disposed between the large diameter end 228 and the small neck end 258, the necked-down portion 270 has a beveled or smoothly curved surface, the contact protruding end 412 is disposed between the necked-down portion 270 and the end of the axial compression hole 130, and the contact protruding end 412 contacts the necked-down portion 270 when the plug 221 is not subjected to an external force.
In some embodiments, the contact ramp end 215 cannot pass the contact bump end 412 when slid, and the contact bump end 412 allows the compression shaft 201 to be slidably mounted in the axial compression hole 130 without passing out of the axial compression hole 130.
In some preferred embodiments, the needle clamping lever 401 is a metal member and the clamping head 403 has a resilient structure at least at the distal end. Specifically, the body of the needle clamping lever 401 is made of a metal member, so that the structural strength of the needle clamping lever 401 can be ensured, and the clamping head 403 contacting the probe material is made of an elastic structure, so that the clamping head 403 can better contact the probe material, thereby better clamping the probe material, and the elastic structure can be made of polyurethane or polyester elastomer TPEE, etc.
In some preferred embodiments, the needle clamping hole 132 has a guide angle 160 toward the probe material entrance side, the guide angle 160 being used to allow probe material to enter the needle clamping hole 132, the needle clamping hole 132 being capable of accommodating the probe material entrance. Specifically, the guide angle 160 serves as a centering and locating function for needle positioning, which enables the needle material to smoothly enter the needle clamping hole 132.
Preferably, the plug 221 and the compression shaft 201 are integrally formed or the plug 221 is fixedly mounted on the compression shaft 201 through threaded connection or threaded jackscrew ejection connection or pin penetration connection or rivet connection, the plug 221 is located at the outermost side of one end of the compression shaft 201 exposed out of the needle clamping housing 101, the needle clamping head 105 and the needle clamping housing 101 are integrally formed or the needle clamping head 105 is fixedly mounted on the needle clamping housing 101 through threaded connection or threaded jackscrew ejection connection or pin penetration connection or rivet connection, and the needle clamping head 105 is located at one end of the needle clamping housing 101. In this embodiment, the plug 221 is fixedly mounted on the outermost side of the pressing shaft 201 through a threaded connection, and the clip needle 105 is connected to one end of the clip needle housing 101 through a threaded connection.
In particular use, an external force presses the plug 221, so that the needle clamping spring 301 is further compressed, and the contact inclined surface end 215 is separated from the contact protruding end 412, at this time, the end of the needle clamping lever 401 having the clamping head 403 is lifted up due to the clamping action of the return spring 601, at this time, the clamping head 403 of the needle clamping device for the probe material is in a released state, at this time, the probe material can enter the needle clamping hole 132 of the needle clamping 105, then the external force no longer presses the plug 221, at this time, under the elastic action of the needle clamping spring 301, the contact inclined surface end 215 is in pressing contact with the contact protruding end 412, due to the pressing force, and the contact inclined surface end 215 is inclined, at this time, the contact inclined surface end 215 and the contact protruding end 412 slide relatively, the contact protruding end 412 is lifted up, and the clamping head 403 at the other end of the needle clamping lever 401 is pressed down into the needle clamping groove 112, and the probe material is clamped by the clamping head 403.
It should be noted that the present invention is not limited to the above embodiments, and those skilled in the art can make other changes according to the inventive spirit of the present invention, and these changes according to the inventive spirit of the present invention should be included in the scope of the present invention as claimed.
Claims (10)
1. The probe material needle clamping device is used for clamping the probe material during full-automatic processing of the probe material and is characterized by comprising a needle clamping shell, a compression shaft, a needle clamping pressure spring, a needle clamping lever, a lever pin shaft and a reset spring;
the needle clamping device comprises a needle clamping shell, a needle clamping lever, a needle clamping spring, a needle clamping shell and a reset spring, wherein one end of the needle clamping shell is provided with a needle clamping head, the needle clamping lever is connected with the needle clamping shell through a lever pin shaft in a rotating hinge mode, the other end of the needle clamping shell, which is far away from the needle clamping head, is provided with an axial compression hole, the compression shaft can be slidably arranged in the axial compression hole, one end of the compression shaft is exposed to the needle clamping shell, one end of the compression shaft is provided with a top, the needle clamping spring is sleeved and arranged at one end of the compression shaft, which is exposed to the needle clamping shell, the needle clamping spring cannot pass through the top when the compression shaft moves, and the reset spring is tightly contacted and sleeved and arranged at the outer sides of the needle clamping shell and the needle clamping lever;
the needle clamping device comprises a needle clamping head, a needle clamping lever, a needle clamping head, a needle clamping shaft, a needle clamping spring, a needle clamping end and a needle clamping end, wherein the needle clamping groove is formed in the outer side of the needle clamping head;
the return spring is positioned between the lever pin shaft and the contact protruding end.
2. The probe pin holder of claim 1, wherein the pin holder head further has a pin hole for penetrating the probe pin, the pin pressing groove dividing the pin hole into two sections, both sections of the pin hole being for radially positioning the probe pin.
3. The probe pin holder according to claim 1, wherein the contact inclined surface end is out of contact with the contact protruding end when the tip is pushed by an external force generated by a cylinder moving part or an electric cylinder moving part or a motor-driven mechanism moving part.
4. The probe pin holder of claim 1 wherein said pin holder housing has a retaining ring and said pin holder lever has a raised stop, said retaining ring and said raised stop locating said return spring between said lever pin and said contact raised end.
5. A probe material needle holder according to claim 3 wherein said return spring is elastically deformable, said return spring being mounted in close contact with said needle holder housing and said needle holder lever on the outside thereof when said contact ramp end is in close press contact with or is released from said contact projection end, said return spring being adapted to leverage said gripping head to release said probe material when said contact ramp end is released from said contact projection end.
6. The probe pin holder of claim 1 wherein the contact beveled end has a major diameter end and a minor neck end, a necked-down portion between the major diameter end and the minor neck end, the necked-down portion having a beveled or smoothly curved surface, the contact protruding end being located between the necked-down portion and the axial compression hole end, the contact protruding end being in contact with the necked-down portion when the plug is not subjected to an external force.
7. The probe pin holder of claim 1 wherein said contact ramp end is not able to pass by said contact projection end when slid, said contact projection end slidably mounting said hold-down shaft in said axial hold-down bore without passing through said axial hold-down bore.
8. The probe pin holder of claim 1 wherein said pin holder lever is a metallic member and said clamping head has a resilient structure at least at the distal end.
9. The probe pin holder of claim 2 wherein the pin aperture has a guide angle toward the probe pin entry side for allowing probe pin to enter the pin aperture, the pin aperture being capable of receiving the probe pin.
10. The probe needle holder according to claim 1, wherein the ejection head and the pressing shaft are integrally formed or fixedly mounted on the pressing shaft through threaded connection or threaded jackscrew ejection connection or pin penetrating connection or rivet connection, the ejection head is positioned at the outermost side of one end of the pressing shaft exposed to the needle holder shell, the needle holder head and the needle holder shell are integrally formed or fixedly mounted on the needle holder shell through threaded connection or threaded jackscrew ejection connection or pin penetrating connection or rivet connection, and the needle holder head is positioned at one end of the needle holder shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311631445.5A CN117325104A (en) | 2023-12-01 | 2023-12-01 | Probe holder for probe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311631445.5A CN117325104A (en) | 2023-12-01 | 2023-12-01 | Probe holder for probe material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117325104A true CN117325104A (en) | 2024-01-02 |
Family
ID=89279762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311631445.5A Pending CN117325104A (en) | 2023-12-01 | 2023-12-01 | Probe holder for probe material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117325104A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB726408A (en) * | 1952-10-20 | 1955-03-16 | Fridor Fabrieken Nv | Needle bar for a sewing machine |
| US4738033A (en) * | 1985-07-22 | 1988-04-19 | Ernst Leitz Wetzlar Gmbh | Rapid change holder for probe pins |
| TWM312669U (en) * | 2006-10-27 | 2007-05-21 | Ccp Contact Probes Co Ltd | Probe fixture |
| US20090020055A1 (en) * | 2007-07-19 | 2009-01-22 | Groz-Beckert Kg | Clamping device for needles |
| CN105215894A (en) * | 2015-09-30 | 2016-01-06 | 迈得医疗工业设备股份有限公司 | A kind of fixture of medical needle |
| CN110722512A (en) * | 2019-11-27 | 2020-01-24 | 大工智能装备（深圳）有限公司 | Hand-threading needle positioning fixture |
| CN218036892U (en) * | 2022-07-13 | 2022-12-13 | 南京晶捷生物科技有限公司 | Probe holder |
| CN116352517A (en) * | 2023-04-27 | 2023-06-30 | 深圳市道格特科技有限公司 | Vertical needle bidirectional feeding and discharging grinding processing equipment |
| CN116638416A (en) * | 2023-07-26 | 2023-08-25 | 深圳市道格特科技有限公司 | Perpendicular needle grinds processing equipment |
-
2023
- 2023-12-01 CN CN202311631445.5A patent/CN117325104A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB726408A (en) * | 1952-10-20 | 1955-03-16 | Fridor Fabrieken Nv | Needle bar for a sewing machine |
| US4738033A (en) * | 1985-07-22 | 1988-04-19 | Ernst Leitz Wetzlar Gmbh | Rapid change holder for probe pins |
| TWM312669U (en) * | 2006-10-27 | 2007-05-21 | Ccp Contact Probes Co Ltd | Probe fixture |
| US20090020055A1 (en) * | 2007-07-19 | 2009-01-22 | Groz-Beckert Kg | Clamping device for needles |
| CN105215894A (en) * | 2015-09-30 | 2016-01-06 | 迈得医疗工业设备股份有限公司 | A kind of fixture of medical needle |
| CN110722512A (en) * | 2019-11-27 | 2020-01-24 | 大工智能装备（深圳）有限公司 | Hand-threading needle positioning fixture |
| CN218036892U (en) * | 2022-07-13 | 2022-12-13 | 南京晶捷生物科技有限公司 | Probe holder |
| CN116352517A (en) * | 2023-04-27 | 2023-06-30 | 深圳市道格特科技有限公司 | Vertical needle bidirectional feeding and discharging grinding processing equipment |
| CN116638416A (en) * | 2023-07-26 | 2023-08-25 | 深圳市道格特科技有限公司 | Perpendicular needle grinds processing equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20240102 |
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| RJ01 | Rejection of invention patent application after publication |