CN205043282U - Tire mould is mould angel position control mechanism for spark -erosion perforating machine - Google Patents
Tire mould is mould angel position control mechanism for spark -erosion perforating machine Download PDFInfo
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- CN205043282U CN205043282U CN201520780441.8U CN201520780441U CN205043282U CN 205043282 U CN205043282 U CN 205043282U CN 201520780441 U CN201520780441 U CN 201520780441U CN 205043282 U CN205043282 U CN 205043282U
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- bobbin
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Abstract
The utility model relates to a tire mould is mould angel position control mechanism for spark -erosion perforating machine, it includes: be suitable for around the reciprocal rot. Anchor clamps box of 1 the 1st centre of turning circle line, the tip normal running fit of anchor clamps box has the flower disc, is equipped with the clamping claw that is used for clamping tire mould in the flower disc, and flower disc and clamping claw are suitable for the 2nd centre of turning circle line of synchronous lap -ups dish rotatory for the anchor clamps box. Above -mentioned mechanism is suitable for the punch -position of automatic control mould, reduces workman intensity of labour, improves the production efficiency of complete machine.
Description
Technical field
The utility model relates to a kind of tire-mold spark-erosion perforating machine die angle controlling organization, particularly can change the tire-mold spark-erosion perforating machine of operation voluntarily, and radial and two-half die tire-mold spark-erosion perforating machine die angle controlling organization.
Background technology
Tire-mold spark-erosion perforating machine of the prior art, if Chinese patent literature number is CN104096929A, it discloses a kind of tire-mold flower block punch, this punch can carry out electric-spark drilling for the micropore on mould, but due in perforation procedure, appearance is consumed by its bobbin, need the extent of deterioration of artificial grasp bobbin and carry out replacing bobbin, skilled operation degree for workman requires high, especially automatically can not control the punch position of mould, be unfavorable for enhancing productivity.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of tire-mold spark-erosion perforating machine die angle controlling organization, and it is suitable for the punch position automatically controlling mould.
Sub-tire-mold spark-erosion perforating machine die angle controlling organization of the present utility model, it comprises: be suitable for the fixture casing around the first centre of gyration line reciprocating rotating, the end of fixture casing has been rotatably assorted floral disc, be provided with the clamping pawl for clamping tire-mold in floral disc, the second centre of gyration line that floral disc and clamping pawl are suitable for synchronous lap-ups dish rotates relative to fixture casing.
Described second centre of gyration line and the first centre of gyration line intersect vertically.
The gyroaxis that described fixture casing passes through the totally first centre of gyration line is rotatably supported on base, gyroaxis is fixedly connected with fixture casing, the front end of gyroaxis is fixedly connected with the worm gear of common rotation centerline, the below of worm gear is provided with the worm screw be in transmission connection with it, and one end of worm screw is in transmission connection by the turning motor of driving belt and side.
The mair motor driving floral disc to rotate is provided with in described fixture casing.
Described floral disc be provided be connected with a central control unit for detect floral disc inclination angle obliquity sensor, for detecting the angular transducer of the floral disc anglec of rotation; Central control unit is connected with mair motor with described turning motor, to control inclination angle and the anglec of rotation of described floral disc.
Relative to prior art, the technique effect that the utility model has is:
(1) tire-mold spark-erosion perforating machine die angle controlling organization of the present utility model, for radial and two-half die tire-mold spark-erosion perforating machine, be suitable for the punch position automatically controlling mould, reduce labor strength, improve the production efficiency of complete machine.
(2) central control unit is connected with mair motor with described turning motor, with the needs (software specifically can be adopted to preset the data message such as angle, orientation in each punching room) according to punch position, the inclination angle of the described floral disc of accurate control and the anglec of rotation, be conducive to the production efficiency improving complete machine further.
Accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present utility model and the technical advantage compared to existing product thereof, by the limiting examples applying described principle, possible embodiment is described by means of accompanying drawing below.In the drawings:
Fig. 1 is the overall structure graphics of the tire-mold spark-erosion perforating machine of embodiment 1;
Fig. 2 is the overall front view of the tire-mold spark-erosion perforating machine of embodiment 1;
Fig. 3 is the overall top view of the tire-mold spark-erosion perforating machine of embodiment 1;
Fig. 4 is the partial enlargement 3-D view automatically getting useless pipe device and rotary chuck of embodiment 1;
Fig. 5 is the partial enlarged drawing automatically getting useless pipe device of embodiment 1;
Fig. 6 is the partial enlargement 3-D view automatically getting useless pipe device of embodiment 1;
Fig. 7 is the rotary chuck of embodiment 1 and the partial enlarged drawing of location-plate;
Fig. 8 be embodiment 1 on get the partial enlarged drawing of pipe dish;
Fig. 9 is the partial enlarged drawing that embodiment gets pipe dish for 1 time.
Detailed description of the invention
Embodiment 1
As shown in figs 1-9, the tire-mold spark-erosion perforating machine of the present embodiment, is applied to the electric-spark drilling of radial and two-half die tire-mold.It comprises: base 1, turning motor 2, driving belt 3, worm screw 4, worm gear 5, gyroaxis 6, fixture casing 7, tire-mold 8, food tray 9, bearing 10, feed servo motor 11, screw body 1, guide rail 13, sliding seat 14, highly regulate servomotor 15, screw body 2 151, punching servomotor 16, sliding shoe 17, guide upright post 18, promote telescoping cylinder 19, guide plate 20, crossbeam 21, clamping telescopic cylinder 22, rotary chuck 23, on get pipe dish 24, rotating shaft 25, bobbin 26, upper mounted plate 28, left pin 1, upper spring 30, right pin 1, send pipe servomotor 32, under get pipe dish 33, bottom plate 34, left pin 2 35, lower spring 36, right pin 2 37, bobbin top board 38, feed frame 39, piston boit 40, location-plate 41, capture telescoping cylinder 42, piston rod 43, drive rod 44, follower lever 45, gag lever post 46, expansion link 47, alignment pin 48, positioning through hole 50, screw body 3 51.Described promotion telescoping cylinder, clamping telescopic cylinder, crawl telescoping cylinder are the one of cylinder, hydraulic cylinder, electric cylinder etc.
As Figure 1-3, X, Y, Z axis is orthogonal three reference axis in three dimensions, base 1 is provided with die angle controlling organization, it comprises: be located at the fixture casing 7 making reciprocating rotating around the first centre of gyration line 71 on base 1, this first centre of gyration line 71 is parallel to Y-axis as shown in Figure 3, the gyroaxis 6 that fixture casing 7 passes through the totally first centre of gyration line 71 is rotatably supported on base 1, gyroaxis 6 is fixedly connected with fixture casing 7, the front end of gyroaxis 6 is fixedly connected with the worm gear 5 of common rotation centerline, the below of worm gear 5 is provided with the worm screw 4 be in transmission connection with it, one end of worm screw 4 to be in transmission connection with the turning motor 2 of side by driving belt 3 and (to be controlled the action of turning motor 2 by a central control unit (preferred industrial computer), turning motor 2 is servomotor or stepper motor preferably), fixture casing 7 right-hand member bearing fit has floral disc 73, the clamping pawl (attached not shown) for clamping tire-mold 8 is provided with in floral disc 73, the mair motor (this mair motor is servomotor or stepper motor) driving floral disc 73 to rotate is provided with in fixture casing 7, floral disc 73 and clamping pawl can synchronously rotate relative to fixture casing 7 around its second centre of gyration line 72, second centre of gyration line 72 and the first centre of gyration line 71 intersect vertically, floral disc 73 tire-mold 8 can be clamped and fastened on inside it by clamping pawl and with tire-mold 8 totally second centre of gyration line, when the below base 1 of floral disc 73 is provided with for collecting perforation, the food tray 9(of Excess lubricating oil and metal fragment is as a kind of alternative embodiment, stepper motor or servomotor is adopted to coordinate with the transmission of described gyroaxis 6 through gear train).
Described floral disc 73 be provided be connected with a central control unit for detect floral disc 73 inclination angle obliquity sensor, for detecting the angular transducer of floral disc 73 anglec of rotation.Central control unit is connected with mair motor with described turning motor 2, with the needs (software specifically can be adopted to preset the data message such as angle, orientation in each punching room) according to punch position, accurately controls inclination angle and the anglec of rotation of described floral disc 73.
The right-hand member of base 1 is adjacent is provided with bearing 10, the top of bearing 10 is provided with pair of parallel in the guide rail 13 of X-axis, sliding seat 14 to be snug fit on this guide rail 13 and to be in transmission connection with the feed servo motor 11 of bearing 10 right-hand member by the screw body 1 between sliding seat 14 and bearing 10, sliding seat 14 is fixed with a guide upright post 18, sliding shoe 17 is snug fit on the leading flank of this guide upright post 18 along the direction being parallel to Z axis, and sliding shoe 17 regulates servomotor 15 to be in transmission connection by the screw body 2 151 on rear side of it with the height at guide upright post 18 top.
As shown in Figure 4, the left surface of sliding shoe 17 is distributed with the crossbeam 21 and location-plate 41 that are parallel to X-axis up and down, location-plate 41 right-hand member is fixedly connected with sliding shoe 17, crossbeam 21 and location-plate 41 are respectively adjacent to the top and bottom of sliding shoe 17, the right-hand member of crossbeam 21 and sliding shoe 17 are slidably matched along the direction being parallel to Z axis and are in transmission connection with the punching servomotor 16 at sliding shoe 17 top by the screw body 3 51 in Fig. 3, the left end of crossbeam 21 is provided with the rotary chuck 23 for clamping bobbin 26, this rotary chuck 23 is driven by the clamping telescopic cylinder 22 that its side is adjacent and clamps or open.
The front side of sliding shoe 17 is provided with automatic feed tube device, automatic feed tube device comprises the guide plate 20 in the middle part of sliding shoe 17, leading flank is fixedly connected with, the leading flank of guide plate 20 is sliding combined with feed frame 39 in the horizontal direction, when feed frame 39 slides left along guide plate 20, the left end of this feed frame 39 is close to immediately below rotary chuck 23, feed frame 39 is in transmission connection (another kind of scheme is, piston boit 40 is the piston rods promoting telescoping cylinder 19) by the piston boit 40 of side with the promotion telescoping cylinder 19 of guide plate 20 right-hand member.
Feed frame 39 upper end is fixedly connected with pair of parallel and vertical upper mounted plate 28, this is to the crack remaining with a vertical direction (being parallel to Z-direction) between upper mounted plate 28, the width of this crack makes bobbin 26 pass through just, this is provided with the upper ellipse hole (also can be strip through-hole) of a horizontal-extending to the bottom of the front side upper mounted plate 28 in upper mounted plate 28, left pin 1 is fixed on the left end place of ellipse hole, right pin 1 to be snug fit on this in ellipse hole, by to embed in ellipse hole and upper spring 30 elasticity being in extended state is connected between left pin 1 and the outer end of right pin 1, this is provided with bobbin top board 38 to the right side of upper mounted plate 28, the upper left end of this bobbin top board 38 is fixed with the first thin plate, first thin plate embeds in above-mentioned crack just, right pin 1 is fixedly connected with the first thin plate, first thin plate is pressed in be contained in the bobbin top of low order end in the bobbin queue for subsequent use in crack left, this to the left end of upper mounted plate 28 be provided with one around be parallel to Z axis central shaft rotate on get pipe dish 24, as shown in Figure 8, what the outer peripheral face getting pipe dish 24 on columniform was provided with that Radius and bobbin 26 match vertically extend and the groove 1 that horizontal section is curved, on get the left end opening part of the outer peripheral face of pipe dish 24 and above-mentioned crack adjacent and on to get pipe dish 24 tangent on horizontal section with the left end opening part of crack.
The lower end of feed frame 39 is fixedly connected with pair of parallel and vertical bottom plate 34, this is to the crack remaining with a vertical direction between bottom plate 34, this is provided with the base plate for supporting bobbin 26 to the bottom of bottom plate 34, the width of this crack makes bobbin 26 pass through just, this is provided with the lower ellipse hole of a horizontal-extending to the bottom of the front side bottom plate 34 in bottom plate 34, left pin 2 35 is fixed on the left end place of lower ellipse hole, right pin 2 37 is snug fit in this lower ellipse hole, by to embed in lower ellipse hole and lower spring 36 elasticity being in extended state is connected between left pin 2 35 and the outer end of right pin 2 37, described bobbin top board 38 is positioned at this right side to bottom plate 34, the bottom left end of this bobbin top board 38 is fixed with the second thin plate, second thin plate embeds in the crack between bottom plate 34 just, right pin 2 37 is fixedly connected with the second thin plate, second thin plate is pressed in be contained in the bobbin bottom of low order end in the bobbin queue for subsequent use between bottom plate 34 in crack left, this to the left end of bottom plate 34 be provided with one with above to get pipe dish 24 concentrically line get pipe dish 33 under rotating, as shown in Figure 9, what the outer peripheral face getting pipe dish 33 under columniform was provided with that Radius and bobbin 25 match vertically extend and the groove 2 331 that horizontal section is curved, the bottom of groove 2 331 be provided with one be positioned under get the step 332 of pipe dish 33, under get the left end opening part of the crack between the outer peripheral face of pipe dish 33 and bottom plate 34 adjacent and under to get pipe dish 33 tangent on horizontal section with the left end opening part of this crack.Each thin plate is connected as one by bobbin top board, and the spring force on each thin plate can be made to keep in balance, and improves the compression reliability to bobbin for subsequent use.The crack of employing two vertical alignments can improve the supportive to bobbin for subsequent use, simplifies again structure simultaneously, saves material, and the spring of stretching can make each thin plate produce thrust to each bobbin for subsequent use all the time.
Upper and lower getting between pipe dish is fixedly connected with by the rotating shaft 25 being total to rotation centerline, and the front side of feed frame 39 is fixed with send pipe servomotor 32, send pipe servomotor 32 to be in transmission connection by the middle part of driving-belt or gear and rotating shaft 25.As Figure 8-9, above get groove 1 on pipe dish 24 with under the groove 2 331 got on pipe dish 33 be positioned at same orientation circumferentially and both radiuses are identical, consistency from top to bottom.The step surface of step 332 and the plate upper surface of bottom plate 34 bottom are positioned at same level or step surface a little less than plate upper surface.When multiple bobbin 26 for subsequent use is positioned in the crack of fixed plate 28 and bottom plate 34, bobbin 26 is arranged in team along crack, the bobbin 26 of its low order end is compressed to the left by first, second thin plate, and the bottom of each bobbin 26 is supported on the base plate bottom bottom plate 34.When upper and lower pipe dish of getting is transported in single bobbin process, be supported in by the bottom of the bobbin 26 transported on the step surface of described step 332.
The described upper and lower one of getting pipe dish and belonging to overshot, overshot can adopt singlely gets tubing string, both can be cylindrical, also can be the cylinder of horizontal section ovalize or other irregular closed camber line, and the pipe breach of getting of bar shaped is located on the outer peripheral face of overshot.When overshot rotates, the outer peripheral face of overshot is closely adjacent with the left end opening part of crack all the time.The left end of described location-plate 41 is provided with a vertical positioning through hole 50, when rotary chuck 23 clamping bobbin 26 pairs of tire-molds carry out electric-spark drilling, first bobbin 26 is passed above-mentioned positioning through hole 50, thus prevents perforation procedure middle bobbin 26 from bending distortion.
The rear side of described sliding shoe 17 is provided with gets useless pipe device automatically, automatically get useless pipe device and comprise the crawl telescoping cylinder 42 that right-hand member is fixed on sliding shoe 17 trailing flank, the bobbin 26 that the telescopic direction of the piston rod 43 of this crawl telescoping cylinder 42 clamps towards rotary chuck 23, the left end of piston rod 43 is provided with grasping mechanism, this grasping mechanism comprises a pair drive rod 44, the left end of piston rod 43 and this is hinged to the adjacent end portion of drive rod 44, this is hinged with the adjacent end portion of a pair follower lever 45 respectively to the other end of drive rod 44, the middle part of this follower lever 45 is hinged with the two ends of a gag lever post 46 respectively, the shell left end capturing telescoping cylinder 42 is extended with the expansion link 47 that has certain mobile damping force, be fixed on the left end of expansion link 47 by alignment pin 48 in the middle part of gag lever post 46, gag lever post 46 is slidably connected along the telescopic direction of piston rod 43 relative to the shell capturing telescoping cylinder 42 by expansion link 47, when piston rod 43 stretches, this can opening and closing to the left end of follower lever 45, thus the useless bobbin of clamping.
The method of work of tire-mold spark-erosion perforating machine of the present utility model comprises the following steps:
(1) pipe servomotor 32 is sent to start, make, under get pipe dish synchronous rotary, when groove 1, when groove 2 331 aims at the crack left end of the crack left end of upper mounted plate 28 and bottom plate 34 respectively, upper, under the effect of lower spring, first thin plate of bobbin top board 38 and the second thin plate bobbin 26 each for subsequent use promoted respectively in crack is moved to the left and the bobbin 26 of high order end is pressed into described groove 1, scan in groove 2 331 and by the scanning means of automatic feed tube device side and confirm, this bobbin 26 to be supported on step 332 and by groove 1, groove 2 331 clamps, on, under get pipe dish continue rotate, meanwhile promoting telescoping cylinder 19 drives feed frame 39 to move to left, stop when this bobbin 26 is positioned at the crawl station below rotary chuck 23,
(2) servomotor 16 that punches drives crossbeam 21 to move down by screw body 3 51, and clamping telescopic cylinder 22 controls rotary chuck 23 and clamps by upper and lower upper end of getting the bobbin 26 that pipe dish is sent here, and punching servomotor 16 drives on crossbeam 21 and moves reset;
(3) tire-mold 8 to be loaded in floral disc in fixture casing 7 73 and to clamp;
(4) start the inclination angle, left and right of turning motor 2 alignment jig casing 7 and rotate floral disc 73, the punch position of regulating wheel placenta 8 and perforation angle;
(5) feed servo motor 11 drives sliding seat 14 to move to left by screw body 1, simultaneous altitude regulates servomotor 15 to be regulated the height transferring block 1 by screw body 2 151, needs perforation place in the bobbin 26 aligned wheels placenta that rotary chuck 23 is clamped;
(6) servomotor 16 that punches drives crossbeam 21 to move down by desin speed by screw body 3 51, and the lower end of the bobbin 26 that rotary chuck 23 clamps directly acts on place to be perforated on tire-mold through positioning through hole 50 and carries out electric-spark drilling;
(7) in electric-spark drilling process, the degree of depth of central control unit Real-Time Monitoring electric-spark drilling, if the machining hole recorded on tire-mold is punched, punching servomotor 16 is driven on crossbeam 21 by screw body 3 51 and moves reset, the bobbin that rotary chuck is captured shifts out this hole, rotate the next punch position of floral disc 73 regulating wheel placenta 8, feed servo motor 11 drives sliding seat 14 to move by screw body 1, servomotor 15 is highly regulated to be regulated the height transferring block 1 by screw body 2 151, start the inclination angle, left and right of turning motor 2 alignment jig casing 7, next punch position in the bobbin 26 aligned wheels placenta that rotary chuck 23 is clamped is angle and adjustment is bored a hole, then bore a hole by step (6),
(8) step (7) is repeated until all perforation procedure all complete;
(9) when this bobbin 26 be lost to a certain degree become useless bobbin time, capturing telescoping cylinder 42 drives the left end opening of follower lever 45 open and move to useless bobbin, capture telescoping cylinder 42 after arriving desired location drive the left end opening of follower lever 45 to close and clamp useless bobbin, rotary chuck 23 unclamps this useless bobbin, capturing telescoping cylinder 42 drives follower lever 45 retraction to reset, then, implement above-mentioned steps (1) to (8), capture new bobbin to make rotary chuck and again carry out perforation process.
Embodiment 2
The present embodiment is relative to the difference of embodiment 1: described crack and get in pipe breach clamped piece of the elasticity be provided with for blocking bobbin 26, when bobbin 26 move in crack or get transport in pipe breach time, bobbin 26 can not drop, and now crack can be open with the bottom of getting pipe breach.
Embodiment 3
The present embodiment is relative to the difference of embodiment 1: crack can by integrally to cast or injection mo(u)lding and vertical cross section are the crack body of U-shaped, and described bobbin for subsequent use is supported in the U-shaped bending place of this crack body.
Embodiment 4
The present embodiment is relative to the difference of embodiment 1: the inner of described right pin 1 to be stretched in the crack between two pairs of upper mounted plates 28 and compress bobbin 26 for subsequent use from right side under the effect of upper spring 30, thus instead of the first thin plate.The inner of described right pin 2 37 to be stretched in the crack between two pairs of bottom plates 34 and compress bobbin 26 for subsequent use from right side under the effect of lower spring 36, thus instead of the second thin plate.Meanwhile, bobbin top board 38 is eliminated.
Obviously, above-described embodiment is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present utility model or change and are still among protection domain of the present utility model.
Claims (5)
1. a tire-mold spark-erosion perforating machine die angle controlling organization, it is characterized in that comprising: be suitable for the fixture casing (7) around the first centre of gyration line (71) reciprocating rotating, spindle end in fixture casing (7) is provided with floral disc (73), be provided with the clamping pawl for clamping tire-mold (8) in floral disc (73), the second centre of gyration line (72) that floral disc (73) and clamping pawl are suitable for synchronous lap-ups dish (73) rotates relative to fixture casing (7).
2. tire-mold spark-erosion perforating machine die angle controlling organization according to claim 1, is characterized in that, described second centre of gyration line (72) and the first centre of gyration line (71) intersect vertically.
3. tire-mold spark-erosion perforating machine die angle controlling organization according to claim 1 and 2, it is characterized in that: fixture casing (7) is rotatably supported on base (1) by the gyroaxis (6) of the first centre of gyration line (71), gyroaxis (6) is fixedly connected with fixture casing (7), the front end of gyroaxis (6) is fixedly connected with the worm gear (5) of common rotation centerline, the below of worm gear (5) is provided with the worm screw (4) be in transmission connection with it, and one end of worm screw (4) is in transmission connection by the turning motor (2) of driving belt (3) with side.
4. tire-mold spark-erosion perforating machine die angle controlling organization according to claim 3, is characterized in that, is provided with the mair motor driving floral disc (73) to rotate in described fixture casing (7).
5. tire-mold spark-erosion perforating machine die angle controlling organization according to claim 4, it is characterized in that, described floral disc (73) be provided be connected with a central control unit for detect floral disc (73) inclination angle obliquity sensor, for detecting the angular transducer of floral disc (73) anglec of rotation; Central control unit is connected with mair motor with described turning motor (2), to control inclination angle and the anglec of rotation of described floral disc (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520780441.8U CN205043282U (en) | 2015-10-09 | 2015-10-09 | Tire mould is mould angel position control mechanism for spark -erosion perforating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520780441.8U CN205043282U (en) | 2015-10-09 | 2015-10-09 | Tire mould is mould angel position control mechanism for spark -erosion perforating machine |
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| Publication Number | Publication Date |
|---|---|
| CN205043282U true CN205043282U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520780441.8U Expired - Fee Related CN205043282U (en) | 2015-10-09 | 2015-10-09 | Tire mould is mould angel position control mechanism for spark -erosion perforating machine |
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| Country | Link |
|---|---|
| CN (1) | CN205043282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723522A (en) * | 2018-06-25 | 2018-11-02 | 浙江芊荷科技有限公司 | A kind of spark-erosion machine tool manufactures process equipment and its manufacture processing method automatically |
| CN111496334A (en) * | 2020-04-29 | 2020-08-07 | 深圳市维鼎精密五金有限公司 | Electric spark cutting machine and using method thereof |
-
2015
- 2015-10-09 CN CN201520780441.8U patent/CN205043282U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723522A (en) * | 2018-06-25 | 2018-11-02 | 浙江芊荷科技有限公司 | A kind of spark-erosion machine tool manufactures process equipment and its manufacture processing method automatically |
| CN111496334A (en) * | 2020-04-29 | 2020-08-07 | 深圳市维鼎精密五金有限公司 | Electric spark cutting machine and using method thereof |
| CN111496334B (en) * | 2020-04-29 | 2021-04-13 | 深圳市维鼎精密五金有限公司 | Electric spark cutting machine and using method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20191009 |