CN111230768B - Fixture for machining - Google Patents
Fixture for machining Download PDFInfo
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- CN111230768B CN111230768B CN202010102076.0A CN202010102076A CN111230768B CN 111230768 B CN111230768 B CN 111230768B CN 202010102076 A CN202010102076 A CN 202010102076A CN 111230768 B CN111230768 B CN 111230768B
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- upper wall
- rod
- bearing body
- workbench
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a fixture for machining, which comprises: a work table; the driving structure is detachably arranged on the workbench; the stress clamping structure is detachably arranged on the driving structure; the auxiliary structure is movably arranged on the workbench; the invention relates to the technical field of processing fixture equipment, a workpiece is placed on the upper wall of a workbench and is tightly attached to a stress plate, a screw rod can be further rotated through a hand wheel, a bearing body moves towards the stress plate through a sliding seat, the two ejector rods move after being stressed, a power-assisted rod can be extruded through a bevel guide angle formed in the two ejector rods to move the power-assisted rod, and the workpiece with an irregular shape or a workpiece with a regular shape can be further clamped and fixed; the auxiliary structure can also be used for clamping and fixing the pipe workpieces, and simultaneously the lower workpieces can be heightened; the design can fix regular and irregular workpiece clamping pieces, can fix pipe workpieces at the same time, and is convenient to disassemble and clean.
Description
Technical Field
The invention relates to the technical field of processing clamp equipment, in particular to a clamp for machining.
Background
Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device; according to the difference of the processing mode, the processing method can be divided into cutting processing and pressure processing; in the production process, all processes of changing the shape, size, position, property and the like of a production object by mechanical equipment to form a finished product or a semi-finished product are called as technological processes and are all mechanical processing;
in the machining process, the workpiece needs to be clamped and fixed, so that the workpiece is prevented from moving in the machining process, machining deviation is caused, and the machining quality is prevented from being influenced; however, the existing clamp is generally only suitable for clamping and fixing the same workpiece or for clamping in a regular shape, the limitation is single, and the clamp is not firm or even can not be fixed when the workpiece in the irregular shape is encountered; and for example after the cutting, the card is all interior long time accumulation has a large amount of residuals, influences work piece chucking stability to it is comparatively troublesome to clean, and narrow and small gap often can not clean, consequently, designs a fixture for machining now.
Disclosure of Invention
The present invention is directed to a machining jig that solves the problems set forth above in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a machining jig includes:
a work table;
the driving structure is detachably arranged on the workbench;
the stress clamping structure is detachably arranged on the driving structure;
the auxiliary structure is movably arranged on the workbench;
the driving structure includes: the screw comprises a top plate, two pairs of first bolts with the same structure and a screw rod;
the workbench is of a rectangular structure, a first slide way is arranged at the center of the upper wall of the workbench and is positioned on the left side of the center line, two pairs of first threaded holes with the same structure are formed in the left side wall of the workbench and are respectively positioned on the front side and the rear side of the center line in a mutually symmetrical mode, a second slide way is formed in the right side of the center line of the upper wall of the workbench, the top plate is detachably arranged on the left side wall of the workbench, a first circular through hole with the same structure corresponding to the first threaded holes is formed in the side wall of the top plate, a spiral through hole is formed in the center line of the top plate, one end of each of the two pairs of first bolts is inserted into the first circular through hole of the top plate and is screwed into the first threaded hole of the side wall of the workbench.
The forced clamping structure comprises: the device comprises a sliding seat, a bearing body, a pair of ejector rods with the same structure, a boosting rod, a spring, a transmission rod, a first jaw, a top cover and two pairs of second bolts with the same structure;
the slide seat is movably embedded in a first slide way on the upper wall of the workbench, the bearing body is of a rectangular structure, second threaded holes with the same structure are formed in the four corners of the bearing body, first sliding grooves with the same structure are formed in the front side and the rear side of the central line of the right end of the upper wall of the slide seat, second sliding grooves which are perpendicular to the first sliding grooves and are communicated with the first sliding grooves are formed in the upper wall of the bearing body, limit posts with the same structure are formed in the central positions of the first sliding grooves and the second sliding grooves, an installation groove is formed in the central position of the upper wall of the bearing body, a U-shaped notch is formed in the right side wall of the groove of the bearing body, the bearing body is fixedly welded on the upper wall of the slide seat and is positioned above the workbench, the left side wall of the bearing body is movably connected to one end of the spiral rod, a pair of the ejector rods are provided with first through limit grooves with the same structure in the central positions, the first limiting grooves are respectively sleeved on the limiting columns, the center part of the boosting rod is provided with a through second limiting groove, the two ends of the boosting rod are respectively provided with a second guide bevel matched with the first guide bevel at one end of the ejector rod, the boosting rod is movably embedded in a second chute on the upper wall of the supporting body, the second limiting groove is sleeved on the limiting columns, the spring is movably embedded in an installation groove on the upper wall of the supporting body, one end of the transmission rod is movably embedded in the installation groove on the upper wall of the supporting body and is attached to one end of the spring, the other end of the transmission rod is movably embedded in a U-shaped chute on the side wall of the installation groove, the first clamping jaw is fixedly welded on the other end of the transmission rod and is positioned between the pair of ejector rods, the lower wall of the top cover is provided with a groove matched with the supporting body, and the four corners of the upper wall of the top cover are respectively provided, the top cover is detachably arranged on the upper wall of the bearing body, and one ends of the two pairs of second bolts respectively penetrate through the second round through holes at the four corners of the top cover and are respectively screwed in the second threaded holes on the upper wall of the bearing body.
Preferably, the auxiliary structure includes: the device comprises a stress plate, a sliding block, a cushion block, a lock rod, a connecting rod, a second claw and a lock block;
the stress plate is fixedly welded on the upper wall of the workbench and located at the edge of the right end wall, and the center part of the upper wall of the stress plate is provided with an opening, the slide block is movably embedded in a second slide way of the upper wall of the workbench, the cushion block is fixedly welded on the slide block, one end of the lock rod is movably inserted in the front wall surface of the stress plate and located on the top center line and communicated with the opening, one end of the connecting rod is movably embedded in the opening of the stress plate, a first rectangular through hole is formed in the center part of the connecting rod, the second clamping jaw is fixedly welded on the other end of the connecting rod, the lock block is fixedly welded on the side wall of the connecting rod and is located on the same horizontal line with the movable connection, and a second rectangular through hole is formed in the center.
Preferably, the locking bar is a rectangular bar with a T-shaped structure.
Preferably, the sliding block and the sliding seat are both of T-shaped structures.
Preferably, the first jaw and the second jaw are identical in structure.
Preferably, the first slideway and the second slideway are both T-shaped structures.
Preferably, a hand wheel is fixedly sleeved at the other end of the screw rod.
Preferably, the transmission rod is of a T-shaped structure.
Compared with the prior art, the invention has the beneficial effects that: according to the clamping apparatus for machining, a workpiece is placed on the upper wall of a workbench and tightly attached to a stress plate, and then a screw rod can be rotated through a hand wheel, so that the screw rod is extended under the stress of a top plate to drive a bearing body to move to the stress plate through a sliding seat, the two ejector rods move after being stressed, the assistance rod can be extruded through the arranged oblique guide angles to move the assistance rod, and further the two ejector rods can be deviated to clamp and fix workpieces in irregular shapes or workpieces in regular shapes; the first clamping jaw and the second clamping jaw are opposite to each other by inserting the lock rod into the lock block for limiting and fixing through the turnover connecting rod, so that pipe workpieces can be clamped, and lower workpieces can be heightened through the mounting cushion block; the design can fix regular and irregular workpiece clamping pieces, can fix pipe workpieces at the same time, and is convenient to disassemble and clean.
Drawings
FIG. 1 is a schematic view of the overall split structure of the present invention;
FIG. 2 is a schematic view of the assembled structure of the present invention;
FIG. 3 is a schematic partially broken away view of the present invention;
fig. 4 is a schematic diagram of a partially enlarged structure a of the present invention.
In the figure: 1. the device comprises a workbench, 2, a driving structure, 21, a top plate, 22, a first bolt, 23, a screw rod, 3, a stress clamping structure, 31, a sliding seat, 32, a supporting body, 33, a top rod, 34, a boosting rod, 35, a spring, 36, a transmission rod, 37, a first clamping jaw, 38, a top cover, 39, a second bolt, 4, an auxiliary structure, 41, a stress plate, 42, a sliding block, 43, a cushion block, 44, a locking rod, 45, a connecting rod, 46, a second clamping jaw, 47, a locking block, 5 and a hand wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a machining jig includes: a work table 1; the driving structure 2 is detachably arranged on the workbench 1; the stress clamping structure 3 is detachably arranged on the driving structure 2; an auxiliary structure 4 movably arranged on the worktable 1; drive structure 2, comprising: a top plate 21, two pairs of first bolts 22 with the same structure and a screw rod 23; the workbench 1 is of a rectangular structure, a first slide way is arranged at the center of the upper wall of the workbench 1 and is positioned on the left side of a center line, two pairs of first threaded holes with the same structure are formed in the left side wall of the workbench 1 and are respectively positioned on the front side and the back side of the center line and are mutually symmetrical, a second slide way is formed in the right side of the center line of the upper wall of the workbench, the top plate 21 is detachably arranged on the left side wall of the workbench 1, a first circular through hole with the same structure corresponding to the first threaded holes is formed in the side wall of the workbench, a spiral through hole is formed in the center line of the first threaded hole, one end of each of two pairs of first bolts 22 is respectively inserted into the first circular through hole of the top plate 21 and is respectively screwed into the first threaded hole of the side wall of; the workpiece can be stressed and clamped through the driving structure 2; forced clamping structure 3, including: the device comprises a sliding seat 31, a supporting body 32, a pair of ejector rods 33 with the same structure, a boosting rod 34, a spring 35, a transmission rod 36, a first claw 37, a top cover 38 and two pairs of second bolts 39 with the same structure; the slide seat 31 is movably embedded in a first slide way on the upper wall of the workbench 1, the bearing body 32 is of a rectangular structure, the four corners of the bearing body are provided with second threaded holes with the same structure, the front side and the rear side of the central line of the right end of the upper wall of the slide seat are provided with first sliding grooves with the same structure, the upper wall of the bearing body 32 is provided with second sliding grooves which are vertical to the first sliding grooves and are communicated with each other, the central parts of the first sliding grooves and the second sliding grooves are provided with limit posts with the same structure, the central part of the upper wall of the bearing body 32 is provided with an installation groove, the right side wall of the groove is provided with a U-shaped notch, the bearing body 32 is fixedly welded on the upper wall of the slide seat 31 and is positioned above the workbench 1, the left side wall of the bearing body is movably connected with one end of the screw rod 23, the central parts of the pair of the ejector rods 33 are provided with first limit grooves with the same structure and communicated, the first limit grooves are respectively sleeved on the limit columns, the center part of the booster rod 34 is provided with a through second limit groove, the two ends of the booster rod are respectively provided with a second guide bevel matched with the first guide bevel at one end of the top rod 33, the booster rod 34 is movably embedded in the second chute on the upper wall of the supporting body 32, the second limit groove is sleeved on the limit columns, the spring 35 is movably embedded in the mounting groove on the upper wall of the supporting body 32, one end of the transmission rod 36 is movably embedded in the mounting groove on the upper wall of the supporting body 32 and is attached to one end of the spring 35, the other end of the transmission rod is movably embedded in the U-shaped chute on the side wall of the mounting groove, the first clamping jaw 37 is fixedly welded on the other end of the transmission rod 36 and is positioned between the pair of top rods 33, the lower wall of the supporting body 38 is provided with a groove matched with the supporting body 32, and the four corners of the upper wall of, the top cover 38 is detachably disposed on the upper wall of the supporting body 32, and one ends of two pairs of second bolts 39 respectively penetrate through the second circular through holes at the four corners of the top cover 38 and are respectively screwed into the second threaded holes on the upper wall of the supporting body 32; the irregular workpiece can be clamped and fixed through the stress clamping structure 3.
Preferably, the auxiliary structure 4 further comprises: the stress plate 41, the sliding block 42, the cushion block 43, the lock rod 44, the connecting rod 45, the second claw 46 and the lock block 47;
the stress plate 41 is fixedly welded on the upper wall of the workbench 1 and positioned at the edge of the right end wall, a notch is formed in the central position of the upper wall of the stress plate, the slide block 42 is movably embedded in a second slide way on the upper wall of the workbench 1, the cushion block 43 is fixedly welded on the slide block 42, one end of the lock rod 44 is movably inserted on the front wall of the stress plate 41 and is positioned on the central line of the top end and communicated with the notch, one end of the connecting rod 45 is movably embedded in the notch of the stress plate 41 and is provided with a first rectangular through hole in the central position, the second claw 46 is fixedly welded on the other end of the connecting rod 45, the lock block 47 is fixedly welded on the side wall of the connecting rod 45 and is positioned on the same horizontal line with the movable connection, and a second rectangular through hole.
Preferably, the locking rod 44 is a rectangular rod with a T-shaped structure for design requirements, so as to facilitate the locking and fixing of the connecting rod 45.
Preferably, the sliding block 42 and the sliding seat 31 are both T-shaped, so as to facilitate installation.
Preferably, the first jaw 37 is identical to the second jaw 46, so as to grip the pipe.
As preferred scheme, still further, first slide and second slide are T type structure, are convenient for install spacing.
Preferably, a hand wheel 5 is fixedly sleeved on the other end of the screw rod 23, so that the screw rod 23 can be rotated by force.
Preferably, the transmission rod 36 is a T-shaped structure, so as to press the spring 35 under force.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
Example (b): as can be seen from the attached drawings 1-4 of the specification, firstly, by placing a workpiece on the upper wall of the workbench 1 and tightly attaching to the stress plate 41 in the auxiliary structure 4, and further by using the hand wheel 5 to rotate the screw rod 23 in the driving structure 2, the screw rod is stressed by the top plate 21 fixed on the side wall of the workbench 1 by the first bolt 22, one end of the screw rod is extended relative to the top plate 21 to drive the bearing body 32 in the stress clamping structure 3 to move towards the stress plate 41 through the slide seat 31, after the stress is applied by the two top rods 33 fixed on the upper wall of the bearing body 32 by the second bolt 39 under the top cover 38, the internal spacing column moves, the booster rod 34 is squeezed by the arranged oblique guiding angle to move the booster rod 34, so that the two top rods 33 can deviate to clamp and fix irregular-up workpieces or regular workpieces, the workpiece is contacted by the first jaw 37, the spring 35 is compressed by the transmission rod 36, the workpiece can be clamped in an auxiliary manner; the first jaw 37 and the second jaw 46 can be opposite to each other through a connecting rod 45 in the turnover auxiliary structure 4, the locking rod 44 is inserted into the locking block 47 for limiting and fixing, and then the tubular workpieces can be clamped through the cooperation of the first jaw 37 and the second jaw 46, and the lower workpieces can be heightened through the installation cushion block 43 of the sliding block 42.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A machining jig, comprising:
a table (1);
the driving structure (2) is detachably arranged on the workbench (1);
the stressed clamping structure (3) is detachably arranged on the driving structure (2);
an auxiliary structure (4) movably arranged on the worktable (1);
the drive structure (2) comprises: the device comprises a top plate (21), two pairs of first bolts (22) with the same structure and a screw rod (23);
the workbench (1) is of a rectangular structure, the center part of the upper wall of the workbench is provided with a first slideway, and is positioned at the left side of the central line, two pairs of first threaded holes with the same structure are arranged on the left side wall of the workbench (1) and are respectively positioned at the front side and the rear side of the central line and are mutually symmetrical, a second mutual channel is arranged on the right side of the central line of the upper wall of the top plate, the top plate (21) is detachably arranged on the left side wall of the workbench (1), the side wall of the top plate is provided with a first circular through hole which corresponds to the first threaded hole and has the same structure, a spiral through hole is arranged on the central line of the first bolt, one end of each of two pairs of first bolts (22) is respectively inserted into the first circular through hole of the top plate (21), the screw rods are respectively screwed in first threaded holes in the side wall of the workbench (1), one end of each screw rod (23) is movably inserted in the screw through hole of the top plate (21) and is screwed with the top plate (21);
the stressed clamping structure (3) comprises: the device comprises a sliding seat (31), a bearing body (32), a pair of ejector rods (33) with the same structure, a boosting rod (34), a spring (35), a transmission rod (36), a first jaw (37), a top cover (38) and two pairs of second bolts (39) with the same structure;
the slide seat (31) is movably embedded in a first slide way on the upper wall of the workbench (1), the bearing body (32) is of a rectangular structure, second threaded holes with the same structure are formed in the four corners of the bearing body, first sliding grooves with the same structure are formed in the front side and the rear side of the central line of the right end of the upper wall of the bearing body, second sliding grooves which are perpendicular to and communicated with the first sliding grooves are formed in the upper wall of the bearing body (32), limiting columns with the same structure are formed in the central positions of the first sliding grooves and the second sliding grooves, a mounting groove is formed in the central position of the upper wall of the bearing body (32), a U-shaped notch is formed in the right side wall of the groove, the bearing body (32) is fixedly welded on the upper wall of the slide seat (31) and is positioned above the workbench (1), the left side wall of the bearing body is movably connected to one end of the spiral rod (23), and a pair of the ejector rods (33) is provided with a, one end of the transmission rod (36) is movably embedded in the upper wall mounting groove of the bearing body (32) and is attached to one end of the spring (35), the other end of the transmission rod is movably embedded in the U-shaped sliding groove of the mounting groove, the first clamping jaw (37) is fixedly welded to the other end of the transmission rod (36), and the top cover (38) is provided with a groove matched with the bearing body (32) at the lower wall thereof and second round through holes corresponding to the second threaded holes at the upper wall of the bearing body (32) at the four corners of the upper wall thereof, the top cover (38) is detachably arranged on the upper wall of the bearing body (32), and one ends of two pairs of second bolts (39) respectively penetrate through the second round through holes at the four corners of the top cover (38) and are respectively screwed in the second threaded holes at the upper wall of the bearing body (32).
2. The chuck for machining according to claim 1, wherein: the auxiliary structure (4) comprising: the device comprises a stress plate (41), a sliding block (42), a cushion block (43), a lock rod (44), a connecting rod (45), a second claw (46) and a lock block (47);
stress plate (41) fixed welding is in workstation (1) upper wall, and is located right side wall edge department to its upper wall center part department has seted up the opening, slider (42) activity is inlayed and is adorned in workstation (1) upper wall second slide, cushion (43) fixed welding is on slider (42), locking lever (44) one end activity cartridge in stress plate (41) preceding wall, and be located the top center line, and communicate with each other with the opening, connecting rod (45) one end activity is inlayed and is adorned in stress plate (41) opening, and center part department has seted up first rectangle through-hole, second jack catch (46) fixed welding is on connecting rod (45) other end, locking piece (47) fixed welding is on connecting rod (45) lateral wall, and with swing joint on same water flat line, and second rectangle through-hole has been seted up to center part department.
3. The chuck for machining according to claim 2, wherein: the lock rod (44) is a rectangular rod with a T-shaped structure.
4. The chuck for machining according to claim 2, wherein: the sliding block (42) and the sliding seat (31) are both of T-shaped structures.
5. A machining jig according to claim 1 or 2, characterized in that: the first jaw (37) and the second jaw (46) are identical in structure.
6. The chuck for machining according to claim 1, wherein: the first slide and the second slide are both T-shaped structures.
7. The chuck for machining according to claim 1, wherein: a hand wheel (5) is fixedly sleeved at the other end of the screw rod (23).
8. The chuck for machining according to claim 1, wherein: the transmission rod (36) is of a T-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010102076.0A CN111230768B (en) | 2020-02-19 | 2020-02-19 | Fixture for machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010102076.0A CN111230768B (en) | 2020-02-19 | 2020-02-19 | Fixture for machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111230768A CN111230768A (en) | 2020-06-05 |
| CN111230768B true CN111230768B (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010102076.0A Active CN111230768B (en) | 2020-02-19 | 2020-02-19 | Fixture for machining |
Country Status (1)
| Country | Link |
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| CN (1) | CN111230768B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192424B (en) * | 2020-10-13 | 2021-10-29 | 深圳长城开发精密技术有限公司 | Hard disk substrate loading wandering star wheel |
| CN113275618B (en) * | 2021-06-11 | 2022-04-08 | 西安工业大学 | Machine tool and method for machining round holes of automobile body-in-white parts |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3838995A1 (en) * | 1987-11-24 | 1989-06-08 | Bernd Dipl Ing Hoerner | Hydraulic draw-in element |
| DE4309236A1 (en) * | 1993-03-23 | 1994-09-29 | Schuler Gmbh L | Variable-tension rails for locking and unlocking extension/replaceable parts, such as tools, gripper rail sections and the like |
| DE4339271C1 (en) * | 1993-11-18 | 1995-06-01 | Albert Muerdter | Clamping device for releasable holding of workpieces |
| CN2734404Y (en) * | 2004-09-09 | 2005-10-19 | 扬动股份有限公司 | Long stroke clamp mechanism |
| CN201049447Y (en) * | 2007-03-15 | 2008-04-23 | 南通锻压设备有限公司 | Hydraulic compressing apparatus |
| CN100486763C (en) * | 2007-09-06 | 2009-05-13 | 张应祥 | Accurate gripping tongs for the machine tool |
| CN201848793U (en) * | 2010-10-14 | 2011-06-01 | 云南西仪工业股份有限公司 | Clamp for assembling connecting rod bush |
| CN103009314B (en) * | 2013-01-08 | 2014-12-03 | 芜湖福赛科技有限公司 | Roll-over type assembly fixture for air outlet of automobile air conditioner |
| CN103148826B (en) * | 2013-02-22 | 2015-08-19 | 厦门大学 | A kind of rotatable large-caliber optical element clamp |
| CN204286411U (en) * | 2014-12-07 | 2015-04-22 | 绥阳县耐环铝业有限公司 | Aluminium sheet flatness detects machine |
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2020
- 2020-02-19 CN CN202010102076.0A patent/CN111230768B/en active Active
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| CN111230768A (en) | 2020-06-05 |
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Effective date of registration: 20201020 Address after: Zhongsheng Industrial Park, Zhongsheng Road, taoluo Town, Rizhao City, Shandong Province Applicant after: SHANDONG ZHONGTIAN SHENGKE AUTOMATION EQUIPMENT Co.,Ltd. Address before: 312400 No. 200, Xigang village, Sanjiang street, Shengzhou City, Shaoxing City, Zhejiang Province Applicant before: Zhao Liubei |
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Effective date of registration: 20230203 Address after: 276800 Zhongsheng Industrial Park, Taolu Town, Donggang District, Rizhao City, Shandong Province Patentee after: RIZHAO ZHONGSHENG FORGING Co.,Ltd. Address before: 276800 Zhongsheng Industrial Park, Zhongsheng Road, Taoluo Town, Rizhao City, Shandong Province Patentee before: SHANDONG ZHONGTIAN SHENGKE AUTOMATION EQUIPMENT CO.,LTD. |
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