CN113996695B - Production process of infrared lamp bracket - Google Patents
Production process of infrared lamp bracket Download PDFInfo
- Publication number
- CN113996695B CN113996695B CN202111236721.9A CN202111236721A CN113996695B CN 113996695 B CN113996695 B CN 113996695B CN 202111236721 A CN202111236721 A CN 202111236721A CN 113996695 B CN113996695 B CN 113996695B
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- Prior art keywords
- infrared lamp
- positioning
- punching
- punch
- lamp bracket
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000004080 punching Methods 0.000 claims abstract description 37
- 238000009423 ventilation Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 6
- 238000012797 qualification Methods 0.000 abstract description 6
- 230000009172 bursting Effects 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The application relates to the technical field of infrared lamp bracket production and manufacture, in particular to an infrared lamp bracket production process, which comprises the following steps: s1, stamping and forming: stamping and forming the infrared lamp bracket by using a stamping machine; s2, punching an inner ventilation opening: punching the inner vent by using a corresponding punching machine; s3, punching an outer mounting notch: the application can reduce the risk of cracking and edge bursting around the outer mounting notch and improve the punching qualification rate of the infrared lamp bracket by using the corresponding punching machine to punch the outer mounting notch.
Description
Technical Field
The application relates to the technical field of infrared lamp bracket production and manufacturing, in particular to an infrared lamp bracket production process.
Background
The infrared lamp is short for night vision monitoring infrared lamp, is a light supplementing device which is matched with a monitoring camera to collect images at night. The infrared lamp emits light with the wavelength of 850nm and 940nm, is invisible light, has the characteristics of concealment and energy saving, and is widely applied to the field of security monitoring.
The infrared lamp is all installed to the lamp plate, is connected the lamp plate with the support again, and the support is discoid usually, and when manufacturing the support, the die-cut outer installation notch in the circumference edge of support earlier, outer installation notch have a plurality of and be radially outward, and the joint of support and lamp plate is realized to outer installation notch, die-cut the interior vent of support inner circle afterwards, and interior vent has a plurality of and is even radial setting generally, the even heat dissipation of infrared lamp of being convenient for.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: the outer mounting notch of the circumferential edge of the infrared lamp support is punched first, then the inner ventilation opening of the inner ring of the infrared lamp support is punched, and the adverse phenomenon of cracking and edge bursting occurs around the outer mounting notch easily.
Disclosure of Invention
In order to improve the defects and reduce the risk of cracking and edge bursting around the outer mounting notch, the application provides an infrared lamp bracket production process.
The infrared lamp bracket production process adopts the following technical scheme:
the infrared lamp support production process comprises the following steps of:
s1, stamping and forming: stamping and forming the infrared lamp bracket by using a stamping machine;
s2, punching an inner ventilation opening: punching the inner vent by using a corresponding punching machine;
s3, punching an outer mounting notch: the outer mounting slots are die cut using a corresponding die press.
Through adopting above-mentioned technical scheme, because the outer installation notch at infrared lamp support circumference edge is cut in advance, die cuts the interior vent of infrared lamp support inner circle again, leads to taking place the bad phenomenon of cracking the burst limit around the outer installation notch easily, consequently, the die-cut process of adjustment now, die-cut interior vent earlier, die-cut outer installation notch again can reduce the risk of taking place the cracking burst limit around the outer installation notch, improves die-cut qualification rate.
Optionally, a placing groove for positioning the infrared lamp bracket is formed in the position, opposite to the punch, of the top surface of the positioning seat of the punching machine, and a buffer pad is arranged at the bottom of the placing groove; in step S2 or S3, the infrared lamp holder is placed in the placement groove, and the punching machine is started to perform punching.
Through adopting above-mentioned technical scheme, the positioning seat carries out stable location to the infrared lamp support through the standing groove. When the punch punches the inner vent holes, the buffer pad can absorb the mutual impact force between the infrared lamp bracket and the positioning seat, and protect the infrared lamp bracket and the positioning seat.
Optionally, a positioning column for positioning the infrared lamp bracket is fixedly arranged at the center of the bottom of the groove of the placing groove, the positioning column can penetrate through the infrared lamp bracket, and a positioning guide hole in plug-in fit with the positioning column is formed in the punch; in step S2 or S3, when the infrared lamp holder is placed, the positioning column is aligned to the through hole in the center of the infrared lamp holder, and the infrared lamp holder is gradually placed in place.
Through adopting above-mentioned technical scheme, the reference column runs through the through-hole in infrared lamp support center, can carry out more stable location to the infrared lamp support, improves the positioning accuracy of infrared lamp support. When the punch descends to punch the infrared lamp bracket, the positioning column can enter the positioning guide hole of the punch, namely, the positioning column can guide the up-and-down reciprocating movement of the punch, so that the up-and-down movement precision of the punch is improved, and the product quality of the punching infrared lamp bracket is improved.
Optionally, the circumferential dimension of the positioning post gradually decreases in a direction away from the positioning seat.
Through adopting above-mentioned technical scheme, descend at the drift and carry out die-cut in-process to infrared lamp support, the circumference lateral wall of reference column supports tightly the circumference inner wall of location guiding hole gradually, even under the circumstances that the drift takes place the dislocation, also can make the drift finally right, allows the drift to produce certain offset error promptly.
Optionally, when the punch is closest to the bracket, the positioning column has a gap from the closed end of the positioning guide hole.
Through adopting above-mentioned technical scheme, when the drift descends to the minimum, the closed end of location guiding hole also does not contact the top of reference column, can avoid drift and reference column to take place to clash, all protects reference column and drift, noise when can reducing production and processing simultaneously.
Optionally, the punch used for punching the outer installation notch can be abutted against the annular structure of the infrared lamp bracket where the outer installation notch is located.
Through adopting above-mentioned technical scheme, the drift can compress tightly the annular entity part around the outer installation notch of infrared lamp support when the drift descends to the minimum position, can avoid these regions to take place to warp, improves die-cut qualification rate.
Optionally, the positioning seat is provided with a positioning ring groove for positioning the infrared lamp bracket at the circumferential edge of the placing groove; in step S2 or S3, when the infrared lamp holder is placed, the annular structure of the infrared lamp holder naturally enters the positioning ring groove.
By adopting the technical scheme, the positioning precision of the infrared lamp bracket can be further improved by matching the positioning ring groove with the positioning groove.
Optionally, a picking and placing groove is formed in the top surface of the positioning seat, and the picking and placing groove is communicated with the positioning ring groove; in step S2 or S3, after punching the infrared lamp bracket is completed, the finger is stretched into the picking and placing groove to pick up the infrared lamp bracket.
Through adopting above-mentioned technical scheme, when needs take out infrared lamp support from the die-cutting machine, the operative employee stretches into getting in the putting groove with the finger, upwards jack-up infrared lamp support, and part of infrared lamp support just deviate from in standing groove and the locating ring groove, can follow the die-cutting machine in light swiftly and take out the infrared lamp support afterwards.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through adjusting the punching procedure, the inner vent is punched firstly, then the outer mounting notch is punched, the risk of cracking and edge bursting around the outer mounting notch can be reduced, and the punching qualification rate is improved;
2. when the punch descends to punch the infrared lamp bracket, the positioning column can enter the positioning guide hole of the punch, namely, the positioning column can guide the up-and-down reciprocating movement of the punch, so that the up-and-down movement precision of the punch is improved, and the product quality of the punched infrared lamp bracket is improved;
3. when the punch descends to the lowest position, the closed end of the positioning guide hole does not contact the top of the positioning column, so that collision between the punch and the positioning column can be avoided, the positioning column and the punch are protected, and meanwhile, noise during production and processing can be reduced;
4. when the punch descends to the lowest position, the punch can press the annular solid parts around the mounting notch outside the infrared lamp support, deformation of the areas can be avoided, and the punching qualification rate is improved.
Drawings
Fig. 1 is a schematic structural view of a press machine in step S2 in the embodiment of the present application;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of the punch in step S2 according to the embodiment of the present application;
FIG. 4 is an exploded view of the infrared lamp holder, cushion, and positioning base separated from each other in step S2 according to the embodiment of the present application;
fig. 5 is a schematic structural view of the press machine in step S3 in the embodiment of the present application;
fig. 6 is a schematic structural view of the punch in step S3 in the embodiment of the present application.
Reference numerals illustrate: 1. a punching machine; 2. an infrared lamp holder; 21. an inner vent; 22. an outer mounting notch; 23. a through hole; 3. a positioning seat; 31. a placement groove; 32. positioning ring grooves; 33. a taking and placing groove; 34. a cushion pad; 35. positioning columns; 4. a punch; 41. positioning the guide hole.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses a production process of an infrared lamp bracket 2.
A plurality of outer installation notch 22 have been seted up to the circumference edge equidistance of infrared lamp support 2, and outer installation notch 22 has three in this embodiment, and all outer installation notch 22 are radial setting about the center of infrared lamp support 2, and outer installation notch 22 realizes the joint of infrared lamp support 2 and lamp plate. The inner ring of the infrared lamp support 2 is provided with a plurality of inner ventilation openings 21 at equal intervals at the curved surface of the infrared lamp support 2, six inner ventilation openings 21 are provided in the embodiment, and all the inner ventilation openings 21 are uniformly and radially arranged with respect to the center of the infrared lamp support 2. The infrared lamp holder 2 has a through hole 23 in its center.
The production process of the infrared lamp bracket 2 comprises the following steps:
and S1, stamping and forming the infrared lamp bracket 2 by using a corresponding stamping machine 1.
S2, referring to fig. 1 and 2, after step S1, the infrared lamp holder 2 is taken out from the press 1 in S1, the infrared lamp holder 2 is placed at a station of the press 1 for punching the inner vent 21, and the inner vent 21 is punched using the press 1.
Referring to fig. 3 and 4, the top surface of the positioning seat 3 of the punching machine 1 is provided with a cylindrical placement groove 31 at a position opposite to the punching head 4, the positioning seat 3 is provided with an annular positioning ring groove 32 at the circumferential edge of the placement groove 31, and the placement groove 31 and the positioning ring groove 32 are jointly matched with the shape of the infrared lamp bracket 2. The positioning seat 3 is provided with a positioning column 35 at the center of the groove bottom of the placing groove 31, the positioning column 35 can penetrate through the infrared lamp bracket 2 and is in plug-in fit with the infrared lamp bracket 2, and the punch 4 is provided with a positioning guide hole 41 in plug-in fit with the positioning column 35. The placement groove 31 and the positioning ring groove 32 are used for accommodating the infrared lamp holder 2 together, and the placement groove 31, the positioning ring groove 32 and the positioning column 35 can position the infrared lamp holder 2 together.
The positioning ring groove 32 cooperates the constant head tank and can carry out accurate location to infrared lamp support 2, and reference column 35 runs through the through-hole 23 in infrared lamp support 2 center, can carry out more stable location to infrared lamp support 2, improves infrared lamp support 2's positioning accuracy. When the punch 4 descends to punch the infrared lamp support 2, the positioning column 35 can enter the positioning guide hole 41 of the punch 4, namely, the positioning column 35 can guide the up-and-down reciprocating movement of the punch 4, so that the up-and-down movement precision of the punch 4 is improved, and the product quality of the punched infrared lamp support 2 is improved.
Referring to fig. 2 and 4, a cushion 34 is placed at the bottom of the placement groove 31 and the positioning groove 32, and the infrared lamp holder 2 is abutted against the cushion 34. When the punch 4 punches the inner vent hole or the outer mounting notch 22, the buffer cushion 34 can absorb the mutual impact force between the infrared lamp bracket 2 and the positioning seat 3, so as to protect the infrared lamp bracket 2 and the positioning seat 3.
Referring to fig. 3 and 4, when the punch 4 is nearest to the holder, i.e., when the punch 4 is sunk to the lowest point, the positioning column 35 has a gap from the closed end of the positioning guide hole 41. When the punch 4 descends to the lowest position, the closed end of the positioning guide hole 41 does not contact the top of the positioning column 35, so that collision between the punch 4 and the positioning column 35 can be avoided, the positioning column 35 and the punch 4 are protected, and meanwhile, noise during production and processing can be reduced. In the direction away from the positioning seat 3, the circumferential dimension of the positioning column 35 is gradually reduced and is in a truncated cone shape, and the positioning guide hole 41 is matched with the shape of the positioning column 35. In the process of punching the infrared lamp holder 2 by the punch 4 descending, the circumferential side wall of the positioning column 35 gradually abuts against the circumferential inner wall of the positioning guide hole 41, and even if the punch 4 is dislocated, the punch 4 can be finally corrected, that is, a certain offset error is allowed to occur to the punch 4.
Referring to fig. 2 and 4, four picking and placing grooves 33 are formed in the top surface of the positioning seat 3, the four picking and placing grooves 33 are uniformly distributed around the center circumference of the Yu Dingwei column 35, and the picking and placing grooves 33 are communicated with the positioning ring groove 32. When the infrared lamp holder 2 needs to be taken out of the punching machine, an operator stretches fingers into the taking and placing groove 33 to jack up the infrared lamp holder 2 upwards, a part of the infrared lamp holder 2 is separated from the placing groove 31 and the positioning ring groove 32, and then the infrared lamp holder 2 can be taken out of the punching machine easily and quickly.
S3, referring to fig. 5 and 6, the difference from S2 is that the punch 4 of the press 1 in this step is different in structure from the punch 4 in S2, the punch 4 in this step is used to punch the outer mounting notch 22, the punch 4 in this step does not have a structure to punch the inner vent 21, and has a structure to punch the outer mounting notch 22. The punch 4 can be abutted against the annular structure of the infrared lamp support 2 where the outer mounting notch 22 is located, and when the outer mounting notch 22 is punched, the punch 4 and the positioning seat 3 can be pressed tightly on the infrared lamp support 2 together, so that the infrared lamp support 2 is prevented from deforming.
Referring to fig. 5 and 6, after step S2, the infrared lamp holder 2 after punching is taken out, the infrared lamp holder 2 is placed on the station of the punch 1 in this step, and the punch 1 is started to punch the outer mounting notch 22, so that the processing of a finished infrared lamp holder 2 is completed.
The implementation principle of the production process of the infrared lamp bracket 2 provided by the embodiment of the application is as follows: through adjusting die cutting process, die cut interior vent 21 earlier, die cut outer installation notch 22 again, can reduce the risk that the crack takes place around the outer installation notch 22 and explode the limit, improve die-cut qualification rate.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. The infrared lamp bracket production process is characterized by comprising the following steps of:
s1, stamping and forming: stamping and forming the infrared lamp bracket (2) by using a stamping machine (1);
s2, punching an inner ventilation opening (21): punching the inner vent (21) using a corresponding punch (1);
s3, punching an outer mounting notch (22): punching the outer mounting notches (22) using a corresponding punching machine (1);
a plurality of outer installation notch (22) have been seted up to the circumference edge equidistance of infrared lamp support (2), outer installation notch (22) have three, all outer installation notch (22) are radial setting about the center of infrared lamp support (2), the joint of infrared lamp support (2) and lamp plate is realized to outer installation notch (22), a plurality of interior vents (21) have been seted up to the inner circle equidistance of infrared lamp support (2) self curved surface department of infrared lamp support (2), interior vent (21) have six, all interior vents (21) are even radial setting about the center of infrared lamp support (2), the center of infrared lamp support (2) has through-hole (23).
2. The process for producing an infrared lamp stand according to claim 1, wherein: the top surface of the positioning seat (3) of the punching machine (1) is provided with a placing groove (31) which is used for positioning the infrared lamp bracket (2) at a position opposite to the punching head (4), and the bottom of the placing groove (31) is provided with a buffer pad (34); in step S2 or S3, the infrared lamp holder (2) is placed in the placement groove (31), and the punching machine (1) is started to punch.
3. The process for producing the infrared lamp bracket according to claim 2, wherein: a positioning column (35) for positioning the infrared lamp bracket (2) is fixedly arranged at the bottom center of the groove of the placing groove (31), the positioning column (35) can penetrate through the infrared lamp bracket (2), and a positioning guide hole (41) which is in plug-in fit with the positioning column (35) is formed in the punch (4); in step S2 or S3, when the infrared lamp holder (2) is placed, the positioning column (35) is aligned to the through hole (23) in the center of the infrared lamp holder (2), and the infrared lamp holder (2) is gradually placed in place.
4. A process for producing an infrared lamp support according to claim 3, wherein: the circumferential dimension of the positioning column (35) gradually decreases in a direction away from the positioning seat (3).
5. A process for producing an infrared lamp support according to claim 3, wherein: when the punch (4) is nearest to the bracket, the positioning column (35) is spaced from the closed end of the positioning guide hole (41).
6. The process for producing the infrared lamp bracket according to claim 2, wherein: the punch (4) for punching the outer mounting notch (22) can be abutted against the annular structure of the infrared lamp bracket (2) where the outer mounting notch (22) is located.
7. The process for producing the infrared lamp bracket according to claim 2, wherein: the positioning seat (3) is provided with a positioning ring groove (32) used for positioning the infrared lamp bracket (2) at the circumferential edge of the placing groove (31); in step S2 or S3, when the infrared lamp holder (2) is placed, the annular structure of the infrared lamp holder (2) is naturally entered into the positioning ring groove (32).
8. The process for producing an infrared lamp stand according to claim 7, wherein: a picking and placing groove (33) is formed in the top surface of the positioning seat (3), and the picking and placing groove (33) is communicated with the positioning ring groove (32); in the step S2 or S3, after punching the infrared lamp bracket (2) is completed, a finger is stretched into the picking and placing groove (33) to pick up the infrared lamp bracket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236721.9A CN113996695B (en) | 2021-10-23 | 2021-10-23 | Production process of infrared lamp bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236721.9A CN113996695B (en) | 2021-10-23 | 2021-10-23 | Production process of infrared lamp bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113996695A CN113996695A (en) | 2022-02-01 |
| CN113996695B true CN113996695B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111236721.9A Active CN113996695B (en) | 2021-10-23 | 2021-10-23 | Production process of infrared lamp bracket |
Country Status (1)
| Country | Link |
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| CN (1) | CN113996695B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001353693A (en) * | 2000-06-14 | 2001-12-25 | Unisia Jecs Corp | Punching apparatus |
| EP3159070A1 (en) * | 2015-10-22 | 2017-04-26 | ATF Auer Teilefertigung GmbH | Method and tool for producing trapezoidal tooth support rings |
| CN208390763U (en) * | 2018-05-09 | 2019-01-18 | 青岛北海五金有限公司 | A kind of press machine with positioning device |
| CN210233273U (en) * | 2019-06-25 | 2020-04-03 | 南通超达装备股份有限公司 | Punching hole site cracking prevention structure for automobile SMC product |
| CN111589927A (en) * | 2019-02-20 | 2020-08-28 | 台州市百达电器有限公司 | Punch forming system of static iron core of starter |
| CN211588198U (en) * | 2019-12-19 | 2020-09-29 | 天津恒昌宇数控科技有限公司 | Punch mechanism for numerical control punching machine tool |
| CN212682187U (en) * | 2020-07-07 | 2021-03-12 | 广州市研成金属制品有限公司 | Heat dissipation hole perforating device of motor end cover |
| CN213701377U (en) * | 2020-10-15 | 2021-07-16 | 苏州艾尔拓机电有限公司 | Stator and rotor integrated forming die |
-
2021
- 2021-10-23 CN CN202111236721.9A patent/CN113996695B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001353693A (en) * | 2000-06-14 | 2001-12-25 | Unisia Jecs Corp | Punching apparatus |
| EP3159070A1 (en) * | 2015-10-22 | 2017-04-26 | ATF Auer Teilefertigung GmbH | Method and tool for producing trapezoidal tooth support rings |
| CN208390763U (en) * | 2018-05-09 | 2019-01-18 | 青岛北海五金有限公司 | A kind of press machine with positioning device |
| CN111589927A (en) * | 2019-02-20 | 2020-08-28 | 台州市百达电器有限公司 | Punch forming system of static iron core of starter |
| CN210233273U (en) * | 2019-06-25 | 2020-04-03 | 南通超达装备股份有限公司 | Punching hole site cracking prevention structure for automobile SMC product |
| CN211588198U (en) * | 2019-12-19 | 2020-09-29 | 天津恒昌宇数控科技有限公司 | Punch mechanism for numerical control punching machine tool |
| CN212682187U (en) * | 2020-07-07 | 2021-03-12 | 广州市研成金属制品有限公司 | Heat dissipation hole perforating device of motor end cover |
| CN213701377U (en) * | 2020-10-15 | 2021-07-16 | 苏州艾尔拓机电有限公司 | Stator and rotor integrated forming die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113996695A (en) | 2022-02-01 |
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