CN211102678U - Polishing and punching device for sheet metal machining - Google Patents
Polishing and punching device for sheet metal machining Download PDFInfo
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- CN211102678U CN211102678U CN201921450576.2U CN201921450576U CN211102678U CN 211102678 U CN211102678 U CN 211102678U CN 201921450576 U CN201921450576 U CN 201921450576U CN 211102678 U CN211102678 U CN 211102678U
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Abstract
The utility model discloses a polishing and punching device for sheet metal processing, which belongs to the technical field of sheet metal processing and comprises a workbench, wherein supporting legs are fixedly connected at four corners of the lower end of the workbench, an electromagnet is fixedly connected at the lower end of the workbench, a pair of supporting rods are fixedly connected at the upper end of the workbench, a pair of limiting slide rods are fixedly connected between the pair of supporting rods from top to bottom, a first sleeve and a second sleeve are movably sleeved on the surfaces of the pair of limiting slide rods from left to right, a first connecting rod is fixedly connected between the pair of first sleeves, a second connecting rod is fixedly connected between the pair of second sleeves, a third electric telescopic rod is fixedly connected at the lower end of the first sleeve, a first motor is fixedly connected at the lower end of the third electric telescopic rod, a drill bit is fixedly connected at the output end of the first motor, the punching effect is good, the practicability is strong.
Description
Technical Field
The utility model relates to a sheet metal working technical field, more specifically say, relate to a sheet metal working is with punching device that polishes.
Background
The sheet metal, a processing technology, the sheet metal has not had a more complete definition so far, according to a definition on a certain professional journal abroad, can define it as: the sheet metal is a comprehensive cold working process for sheet metal (generally below 6 mm), including shearing, punching/cutting/compounding, folding, riveting, splicing, forming (such as automobile bodies) and the like. The remarkable characteristic is that the thickness of the same part is consistent.
The panel beating needs punch a hole to the panel beating in the course of working, but current panel beating punching device at first can not carry out good fixed to the panel beating, make it easily take place to rock at the in-process that punches a hole, it punches a hole to have now to the panel beating simultaneously, need artificial hand-held drill, consuming time power, it is not good to lead to the effect of punching a hole, the inefficiency of punching a hole, after punching a hole now simultaneously, downthehole can be more coarse, but current punching device can not be after punching a hole timely polish, efficiency is lower.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a sheet metal working is with punching device that polishes, it punches a hole the effect good, and is efficient, can in time polish, thinks the novelty, and the practicality is strong.
2. Technical scheme
In order to solve the above problem, the utility model adopts the following technical scheme:
a polishing and punching device for sheet metal processing comprises a workbench, wherein supporting legs are fixedly connected at four corners of the lower end of the workbench, an electromagnet is fixedly connected at the lower end of the workbench, a pair of supporting rods are fixedly connected at the upper end of the workbench, a pair of limiting slide rods are fixedly connected between the pair of supporting rods from top to bottom, a first sleeve and a second sleeve are movably sleeved on the surfaces of the pair of limiting slide rods from left to right, a first connecting rod is fixedly connected between the pair of first sleeves, a second connecting rod is fixedly connected between the pair of second sleeves, a third electric telescopic rod is fixedly connected at the lower end of one first sleeve, a first motor is fixedly connected at the lower end of the third electric telescopic rod, a drill bit is fixedly connected at the output end of the first motor, a fourth electric telescopic rod is fixedly connected at the lower end of one second sleeve, the output end of the fourth electric telescopic rod is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a polishing head, a groove is formed in the middle of the upper end of the workbench, the punching effect is good, the efficiency is high, polishing can be timely carried out, the conception is novel, and the practicability is high.
As a preferred scheme of the utility model, one fixedly connected with first electric telescopic handle, another between the right-hand member of bracing piece and the left end of head rod fixedly connected with second electric telescopic handle between the left end of bracing piece and the right-hand member of second connecting rod.
As an optimized scheme of the utility model, one install first locking screw on the first sleeve, first screw has been seted up to first telescopic upper end, and communicates between the inner circle of first locking screw and first sleeve, first locking screw threaded connection is in first screw, one install second locking screw on the second sleeve, the second screw has been seted up to the telescopic upper end of second, and communicates between the inner circle of second locking screw and second sleeve, second locking screw threaded connection is in the second screw.
As an optimized scheme of the utility model, one the internal thread groove has been seted up to the left end of bracing piece, internal thread groove female connection has the screw rod couple, and the screw rod couple is horizontal L type, it has the brush cleaner to have hung on the screw rod couple, the transverse length of brush cleaner is not more than the transverse length of trench.
As an optimized scheme of the utility model, four the equal fixedly connected with of lower extreme of supporting legs stabilizes the seat, and the surface coating of the seat that just stabilizes has the shock pad.
As an optimized scheme of the utility model, first sleeve and the telescopic inner circle inner wall of second all polish smoothly, a pair of the surface of spacing slide bar all polishes smoothly.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) this scheme is through third electric telescopic handle's the flexible, through the drive of first motor, can make the drill bit make linear motion, high-speed rotation simultaneously to punch a hole, through fourth electric telescopic handle's the flexible, through the drive of second motor, can make the head of polishing make linear motion, high-speed rotation simultaneously, thereby polish, can in time polish after punching a hole, the effect is good, efficient.
(2) This scheme is through first sleeve sliding connection on spacing slide bar, simultaneously through the setting of a pair of first sleeve and a pair of spacing slide bar, has guaranteed gliding stationarity, through first electric telescopic handle's flexible, can make the drill bit remove about to the adjustment position, simultaneously through second electric telescopic handle's flexible, realizes the removal of the head position of polishing, degree of automation is high.
(3) This scheme is through the setting of first locking screw and second locking screw, can realize the removal of drill bit and the head position of polishing.
(4) The setting of electro-magnet is passed through to this scheme, is convenient for firmly adsorb the sheet metal component to carry out good fixed.
(5) This scheme articulates on the screw rod couple through the cleaning brush, is convenient for install and takes off the cleaning brush, and screw rod couple threaded connection is in the internal thread inslot, and the installation and the dismantlement of being convenient for can clean in the trench through the cleaning brush.
Drawings
Fig. 1 is a common structural schematic diagram of embodiment 1 and embodiment 2 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 4 is a perspective view of the cleaning brush of the present invention;
fig. 5 is a perspective view of the punching groove of the present invention.
The reference numbers in the figures illustrate:
1 workstation, 2 supporting legss, 3 electro-magnets, 4 trench, 5 bracing pieces, 6 spacing slide bars, 7 first sleeve, 8 head rod, 9 second sleeve, 10 second connecting rod, 11 first electric telescopic handle, 12 second electric telescopic handle, 13 third electric telescopic handle, 14 first motor, 15 drill bits, 16 fourth electric telescopic handle, 17 second motor, 18 head, 19 second locking screw, 20 internal thread groove, 21 screw rod couple, 22 brush cleaner, 23 first locking screw.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, 2, 4 and 5, a polishing and punching device for sheet metal processing comprises a workbench 1, wherein the workbench 1 is mainly used for placing sheet metal parts, the workbench 1 is made of metal materials with good magnetic transmission, such as pure iron, low-carbon steel, iron and aluminum, the surface of the workbench 1 is galvanized, the oxidation resistance of the workbench 1 can be effectively improved, the thickness of the workbench 1 is about 3-4cm, supporting legs 2 are fixedly connected to four corners of the lower end of the workbench 1, the four supporting legs 2 are used for supporting the workbench 1 and have good supporting effect, stabilizing seats are fixedly connected to the lower ends of the four supporting legs 2, shock absorbing pads are wrapped on the surfaces of the stabilizing seats, the stabilizing seats improve the stabilizing performance supported by the four workbench 1, and the shock absorbing pads can effectively reduce the vibration of the shock absorbing seats;
the lower end of the workbench 1 is fixedly connected with an electromagnet 3, the electromagnet 3 is an EM L-1564B large electromagnet, the electromagnet 3 has strong magnetic force, the magnetic force can be well transmitted through the workbench 1 to firmly adsorb a sheet metal part on the workbench 1, so that good fixation is realized, the upper end of the workbench 1 is fixedly connected with a pair of support rods 5, and the pair of support rods 5 has good supporting and mounting effects;
a pair of limiting slide bars 6 are fixedly connected between the pair of support rods 5 from top to bottom, a first sleeve 7 and a second sleeve 9 are movably sleeved on the surfaces of the pair of limiting slide bars 6 from left to right, the first sleeve 7 and the second sleeve 9 can slide on the limiting slide bars 6 from left to right, the inner walls of the inner rings of the first sleeve 7 and the second sleeve 9 are polished smooth, the surfaces of the pair of limiting slide bars 6 are polished smooth, the sliding is smoother due to the polishing smooth, and the stability of the first sleeve 7 in sliding is ensured by the arrangement of the pair of limiting slide bars 6 and the arrangement of the pair of first sleeve 7 and the pair of second sleeve 9;
a first connecting rod 8 is fixedly connected between the pair of first sleeves 7, the first connecting rod 8 plays a role in connection, a second connecting rod 10 is fixedly connected between the pair of second sleeves 9, the second connecting rod 10 also plays a role in connection, a first electric telescopic rod 11 is fixedly connected between the right end of the supporting rod 5 positioned on the left side and the left end of the first connecting rod 8, a second electric telescopic rod 12 is fixedly connected between the left end of the supporting rod 5 positioned on the right side and the right end of the second connecting rod 10, the first electric telescopic rod 11 is used for adjusting the position of the first sleeve 7, the second electric telescopic rod 12 is used for adjusting the position of the second sleeve 9, and the first electric telescopic rod 11 and the second sleeve 9 are both step-by-step 50 type electric push rods;
the lower end of the first sleeve 7 positioned at the lower side is fixedly connected with a third electric telescopic rod 13, the third electric telescopic rod 13 can be stretched up and down, the lower end of the third electric telescopic rod 13 is fixedly connected with a first motor 14, the first motor 14 plays a driving role, the output end of the first motor 14 is fixedly connected with a drill bit 15, and through the extension of the third electric telescopic rod 13, the output end of the first motor 14 rotates to drive the drill bit 15 to rotate at a high speed, so that punching is performed;
the lower end of the second sleeve 9 positioned on the lower side is fixedly connected with a fourth electric telescopic rod 16, the fourth electric telescopic rod 16 can stretch up and down, the output end of the fourth electric telescopic rod 16 is fixedly connected with a second motor 17, the second motor 17 plays a driving role, the output end of the second motor 17 is fixedly connected with a polishing head 18, through the extension of the fourth electric telescopic rod 16, the output end of the second motor 17 rotates to drive the polishing head 18 to rotate at a high speed, so that polishing is carried out, the types of the third electric telescopic rod 13 and the fourth electric telescopic rod 16 are both stepping 50-type electric push rods, and the types of the first motor 14 and the second motor 17 are both YVP variable frequency motors;
trench 4 has been seted up at the upper end middle part of workstation 1, the passing through of seting up mainly used drill bit 15 and the head 18 of polishing of trench 4, make its in-process that punches a hole or polish, can directly not contact with workstation 1, thereby can not damage workstation 1, the left end that is located left bracing piece 5 has seted up interior thread groove 20, interior thread groove 20 female connection has screw rod couple 21, and screw rod couple 21 is horizontal L type, through screw rod couple 21 threaded connection in interior thread groove 20, be convenient for install and dismantle screw rod couple 21, it has cleaning brush 22 to hang on screw rod couple 21, cleaning brush 22's transverse length is not more than trench 4's transverse length, cleaning brush 22 is convenient for clean trench 4's inner wall, the waste material that will punch a hole and polish the production cleans out.
The working principle is as follows: the sheet metal part is flatly paved at the upper end of a workbench 1, an electromagnet 3 is started, the sheet metal part is firmly adsorbed by the electromagnet 3 under the action of strong magnetic force, the sheet metal part is fixed, the first electric telescopic rod 11 is started to extend the length of the first electric telescopic rod, a drill bit 15 moves rightwards, when the drill bit 15 moves to the upper side of a slot position 4, the first electric telescopic rod 11 is closed, the position of a first sleeve 7 is fixed, the position of the drill bit 15 is fixed, a third electric telescopic rod 13 is started to extend the length of the third electric telescopic rod, a first motor 14 is started simultaneously, the output end of the first motor 14 rotates to drive the drill bit 15 to rotate at high speed through the extension of the third electric telescopic rod 13, the hole punching is carried out, the third electric telescopic rod 13 is started to shorten the length of the third electric telescopic rod 13, the first motor 14 is closed, the first electric telescopic rod 11 is started to shorten the length of, The fourth electric telescopic rod 16 and the second motor 17 enable the polishing head 18 to polish, punching and polishing are completed, the punching effect is good, efficiency is high, polishing can be conducted timely, the conception is novel, and practicability is high.
Example 2:
referring to fig. 1, 3, 4 and 5, a polishing and punching device for sheet metal processing comprises a workbench 1, wherein the workbench 1 is mainly used for placing sheet metal parts, the workbench 1 is made of metal materials with good magnetic transmission, such as pure iron, low-carbon steel, iron and aluminum, the surface of the workbench 1 is galvanized to effectively increase the oxidation resistance of the workbench 1, the thickness of the workbench 1 is about 3-4cm, supporting legs 2 are fixedly connected to four corners of the lower end of the workbench 1, the four supporting legs 2 are used for supporting the workbench 1 and have good supporting effect, stabilizing seats are fixedly connected to the lower ends of the four supporting legs 2, shock absorbing pads are wrapped on the surfaces of the stabilizing seats, the stabilizing seats increase the stabilizing performance of the four supporting platforms 1, and the shock absorbing pads can effectively reduce the vibration of the shock absorbing seats;
the lower end of the workbench 1 is fixedly connected with an electromagnet 3, the electromagnet 3 is an EM L-1564B large electromagnet, the electromagnet 3 has strong magnetic force, the magnetic force can be well transmitted through the workbench 1 to firmly adsorb a sheet metal part on the workbench 1, so that good fixation is realized, the upper end of the workbench 1 is fixedly connected with a pair of support rods 5, and the pair of support rods 5 has good supporting and mounting effects;
a pair of limiting slide bars 6 are fixedly connected between the pair of support rods 5 from top to bottom, a first sleeve 7 and a second sleeve 9 are movably sleeved on the surfaces of the pair of limiting slide bars 6 from left to right, the first sleeve 7 and the second sleeve 9 can slide on the limiting slide bars 6 from left to right, the inner walls of the inner rings of the first sleeve 7 and the second sleeve 9 are polished smooth, the surfaces of the pair of limiting slide bars 6 are polished smooth, the sliding is smoother due to the polishing smooth, and the stability of the first sleeve 7 in sliding is ensured by the arrangement of the pair of limiting slide bars 6 and the arrangement of the pair of first sleeve 7 and the pair of second sleeve 9;
a first connecting rod 8 is fixedly connected between the pair of first sleeves 7, the first connecting rod 8 plays a role of connection, a second connecting rod 10 is fixedly connected between the pair of second sleeves 9, the second connecting rod 10 also plays a role of connection, a first locking screw 23 is arranged on the first sleeve 7 positioned at the upper side, a first screw hole is arranged at the upper end of the first sleeve 7, and the first locking screw 23 is communicated with the inner ring of the first sleeve 7, the first locking screw 23 is connected in the first screw hole in a threaded manner, the second sleeve 9 positioned at the upper side is provided with a second locking screw 19 for fixing the position of the first sleeve 7 by the first locking screw 23, the upper end of the second sleeve 9 is provided with a second screw hole, the second locking screw 19 is communicated with the inner ring of the second sleeve 9, the second locking screw 19 is connected in the second screw hole in a threaded manner, and the second locking screw 19 is used for fixing the position of the second sleeve 9;
the lower end of the first sleeve 7 positioned at the lower side is fixedly connected with a third electric telescopic rod 13, the third electric telescopic rod 13 can be stretched up and down, the lower end of the third electric telescopic rod 13 is fixedly connected with a first motor 14, the first motor 14 plays a driving role, the output end of the first motor 14 is fixedly connected with a drill bit 15, and through the extension of the third electric telescopic rod 13, the output end of the first motor 14 rotates to drive the drill bit 15 to rotate at a high speed, so that punching is performed;
the lower end of the second sleeve 9 positioned on the lower side is fixedly connected with a fourth electric telescopic rod 16, the fourth electric telescopic rod 16 can stretch up and down, the output end of the fourth electric telescopic rod 16 is fixedly connected with a second motor 17, the second motor 17 plays a driving role, the output end of the second motor 17 is fixedly connected with a polishing head 18, through the extension of the fourth electric telescopic rod 16, the output end of the second motor 17 rotates to drive the polishing head 18 to rotate at a high speed, so that polishing is carried out, the types of the third electric telescopic rod 13 and the fourth electric telescopic rod 16 are both stepping 50-type electric push rods, and the types of the first motor 14 and the second motor 17 are both YVP variable frequency motors;
trench 4 has been seted up at the upper end middle part of workstation 1, the passing through of seting up mainly used drill bit 15 and the head 18 of polishing of trench 4, make its in-process that punches a hole or polish, can directly not contact with workstation 1, thereby can not damage workstation 1, the left end that is located left bracing piece 5 has seted up interior thread groove 20, interior thread groove 20 female connection has screw rod couple 21, and screw rod couple 21 is horizontal L type, through screw rod couple 21 threaded connection in interior thread groove 20, be convenient for install and dismantle screw rod couple 21, it has cleaning brush 22 to hang on screw rod couple 21, cleaning brush 22's transverse length is not more than trench 4's transverse length, cleaning brush 22 is convenient for clean trench 4's inner wall, the waste material that will punch a hole and polish the production cleans out.
The working principle is as follows: the sheet metal part is flatly paved at the upper end of a workbench 1, an electromagnet 3 is started, the sheet metal part is firmly adsorbed by the strong magnetic force action of the electromagnet 3, the sheet metal part is fixed, a first locking screw 23 is unscrewed, a first sleeve 7 slides rightwards, a drill bit 15 is positioned at the upper side of a slot position 4, the first locking screw 23 is screwed, the position of the first sleeve 7 is fixed, the position of the drill bit 15 is fixed, a third electric telescopic rod 13 is started to extend the length of the third electric telescopic rod, a first motor 14 is simultaneously started, the output end of the first motor 14 rotates to drive the drill bit 15 to rotate at a high speed through the extension of the third electric telescopic rod 13, so as to punch a hole, after the hole is punched, the third electric telescopic rod 13 is started to shorten the length of the third electric telescopic rod, the first motor 14 is closed, the first locking screw 23 is unscrewed, the first sleeve 7 slides leftwards to reset, and the second locking, the fourth electric telescopic rod 16 and the second motor 17 are started, so that the polishing head 18 is polished to finish punching and polishing, the punching effect is good, the efficiency is high, polishing can be timely carried out, the conception is novel, and the practicability is high.
The embodiment 1 mainly realizes the fixation of the positions of the drill bit 15 and the sanding head 18 through the driving of the first electric telescopic rod 11 and the second electric telescopic rod 12 without manually sliding the first sleeve 7 and the second sleeve 9, the automation degree is higher, the embodiment 2 mainly realizes the fixation of the positions of the drill bit 15 and the sanding head 18 through the adjustment of the first locking screw 23 and the second locking screw 19 and the manual sliding of the first sleeve 7 and the second sleeve 9, and the embodiment 1 has higher automation degree compared with the embodiment 2, but the cost of the embodiment 2 is relatively lower.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.
Claims (6)
1. The utility model provides a sheet metal working is with punching device that polishes, includes workstation (1), its characterized in that: the supporting legs (2) are fixedly connected to four corners of the lower end of the workbench (1), the electromagnet (3) is fixedly connected to the lower end of the workbench (1), a pair of supporting rods (5) is fixedly connected to the upper end of the workbench (1), a pair of limiting slide rods (6) are fixedly connected between the pair of supporting rods (5) from top to bottom, a first sleeve (7) and a second sleeve (9) are movably sleeved on the surface of the pair of limiting slide rods (6) from left to right, a first connecting rod (8) is fixedly connected between the pair of first sleeves (7), a second connecting rod (10) is fixedly connected between the pair of second sleeves (9), a third electric telescopic rod (13) is fixedly connected to the lower end of one first sleeve (7), and a first motor (14) is fixedly connected to the lower end of the third electric telescopic rod (13), the output end of the first motor (14) is fixedly connected with a drill bit (15), one is fixedly connected with a fourth electric telescopic rod (16) at the lower end of the second sleeve (9), the output end of the fourth electric telescopic rod (16) is fixedly connected with a second motor (17), the output end of the second motor (17) is fixedly connected with a polishing head (18), and a slot (4) is formed in the middle of the upper end of the workbench (1).
2. The grinding and punching device for sheet metal machining according to claim 1, characterized in that: one fixedly connected with first electric telescopic handle (11) between the right-hand member of bracing piece (5) and the left end of head rod (8), another fixedly connected with second electric telescopic handle (12) between the left end of bracing piece (5) and the right-hand member of second connecting rod (10).
3. The grinding and punching device for sheet metal machining according to claim 1, characterized in that: one install first locking screw (23) on first sleeve (7), first screw has been seted up to the upper end of first sleeve (7), and communicates between the inner circle of first locking screw (23) and first sleeve (7), first locking screw (23) threaded connection is in first screw, one install second locking screw (19) on second sleeve (9), the second screw has been seted up to the upper end of second sleeve (9), and communicates between the inner circle of second locking screw (19) and second sleeve (9), second locking screw (19) threaded connection is in the second screw.
4. The grinding and punching device for sheet metal working according to claim 1 is characterized in that an inner thread groove (20) is formed in the left end of one support rod (5), a screw rod hook (21) is connected to the inner thread of the inner thread groove (20), the screw rod hook (21) is in a transverse L shape, a cleaning brush (22) is hung on the screw rod hook (21), and the transverse length of the cleaning brush (22) is not greater than that of the slot position (4).
5. The grinding and punching device for sheet metal machining according to claim 1, characterized in that: the lower ends of the four supporting legs (2) are fixedly connected with stabilizing seats, and shock pads are wrapped on the surfaces of the stabilizing seats.
6. The grinding and punching device for sheet metal machining according to claim 1, characterized in that: the inner walls of the inner rings of the first sleeve (7) and the second sleeve (9) are polished smooth, and the surfaces of the limiting slide bars (6) are polished smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450576.2U CN211102678U (en) | 2019-09-01 | 2019-09-01 | Polishing and punching device for sheet metal machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450576.2U CN211102678U (en) | 2019-09-01 | 2019-09-01 | Polishing and punching device for sheet metal machining |
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| Publication Number | Publication Date |
|---|---|
| CN211102678U true CN211102678U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921450576.2U Active CN211102678U (en) | 2019-09-01 | 2019-09-01 | Polishing and punching device for sheet metal machining |
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| Country | Link |
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| CN (1) | CN211102678U (en) |
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2019
- 2019-09-01 CN CN201921450576.2U patent/CN211102678U/en active Active
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