CN113386049A - Novel automobile steering knuckle casting burr polishing tool - Google Patents
Novel automobile steering knuckle casting burr polishing tool Download PDFInfo
- Publication number
- CN113386049A CN113386049A CN202110896866.5A CN202110896866A CN113386049A CN 113386049 A CN113386049 A CN 113386049A CN 202110896866 A CN202110896866 A CN 202110896866A CN 113386049 A CN113386049 A CN 113386049A
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- China
- Prior art keywords
- guide sleeve
- cylinder
- support frame
- steering knuckle
- pull rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A novel automobile steering knuckle casting burr polishing tool comprises a tool bottom plate, a support frame, a cylinder, a guide sleeve, a pull rod, a profiling positioning block and a special-shaped pressing plate; the tool bottom plate is fixed on a machine tool workbench; the support frame is fixed on the tool bottom plate; the profiling positioning block is arranged at the upper end part of the support frame; the cylinder is arranged in the hollow part of the support frame; the guide sleeve is arranged on the end surface of the cylinder; the pull rod is arranged in a central hole of the guide sleeve, one end of the pull rod penetrates through the central hole of the guide sleeve to be connected with a piston rod of the air cylinder, and the other end of the pull rod is hinged with the two special-shaped pressing plates; the special-shaped pressing plates are arranged on two sides of the top of the pull rod and are hinged with the guide sleeve. The automatic grinding machine realizes automatic compression of the steering knuckle casting, polishes burrs of the steering knuckle casting through numerical control automatic control equipment, avoids manual polishing errors, ensures small dimensional error and good consistency of the polished steering knuckle casting, ensures the product quality and improves the production efficiency.
Description
Technical Field
The invention belongs to the technical field of machining of blank castings of automobile steering knuckles, and particularly relates to a novel automobile steering knuckle casting burr polishing tool.
Background
After the knuckle blank casting is cast and formed, due to the blank manufacturing process requirement and the existence of gaps on a die joint surface, a plurality of burrs, sprue residues, riser residues and other redundant materials are left on a cast knuckle product, the appearance cannot meet the use requirement, and the burrs, the riser residues and the sprue residues left on the periphery of the product body need to be removed. The existing situation is that a blank casting is manually held by a hand to be polished on a common grinder, and redundant parts such as burrs, sprue residues, riser residues and the like remained on the periphery of a steering knuckle product are ground off to meet the use requirement. Because the weight of each knuckle is about 5-8KG, the labor intensity of workers is high when manual grinding is adopted, the grinding is manually controlled, the size error of the ground product is large, the consistency of the product is poor, secondary reworking is carried out sometimes, even the risk of grinding is avoided, particularly, the knuckle product is irregular in shape, the grinding amount is large, the manual hand-held force is limited, the grinding is time-consuming and labor-consuming, the production efficiency is low, the manufacturing cost is improved, and the grinding and scrapping conditions also exist.
Disclosure of Invention
The invention aims to provide a novel automobile steering knuckle casting burr polishing tool, which is used for installing an unpolished steering knuckle casting on a profiling positioning block, automatically compressing the steering knuckle casting by using a pneumatic device, and polishing burrs, sprue residues, riser residues and the like of the steering knuckle casting by using numerical control automatic control equipment instead of manpower, so that the production efficiency is improved, and the product quality is ensured.
The purpose of the invention can be realized by adopting the following technical scheme: a novel automobile steering knuckle casting burr polishing tool comprises a tool bottom plate, a support frame, a cylinder, a guide sleeve, a pull rod, a profiling positioning block, a special-shaped pressing plate, a lock pin connecting plate, an electric box, a dust cover, a connecting bolt and a positioning bolt; the tool bottom plate is arranged on a machine tool workbench and is fixed with the machine tool workbench through a positioning bolt; the support frame is arranged on the tool bottom plate and is of a U-shaped frame structure, and an opening of the U-shaped frame is upward; the profiling positioning block is arranged at the upper end part of the support frame, and a through hole passing through the guide sleeve is arranged at the central part of the profiling positioning block; the air cylinder is arranged in the hollow part of the U-shaped frame of the support frame; the guide sleeve is arranged on the end face of the air cylinder, the guide sleeve is of a cylindrical sleeve structure with a T-shaped boss at the bottom, a central hole of the sleeve corresponds to a piston rod of the air cylinder, and the top of the guide sleeve is symmetrically provided with convex connecting rods which are fixed with the guide sleeve into a whole; the pull rod is arranged in a central hole of the guide sleeve and is in clearance fit with the guide sleeve, one end of the pull rod penetrates through the central hole of the guide sleeve to be in threaded connection with a piston rod of the air cylinder, and the other end of the pull rod is respectively hinged with the two special-shaped pressing plates through a lock pin; the special-shaped pressing plates are respectively arranged on two sides of the top of the pull rod, and one end of each special-shaped pressing plate is respectively hinged with the connecting rod on the top of the guide sleeve through two lock pin connecting plates; the electric box set up in the left side of frock bottom plate, the two passes through connecting bolt fixed connection.
The profile modeling locating piece be the rectangular block structure according to the location shape preparation of knuckle foundry goods, the four corners symmetry of rectangular block is provided with the mounting groove, be provided with the mounting hole of being connected with the support frame on the mounting groove bottom surface, the both sides face symmetry of rectangular block is provided with L shape location otic placode, be provided with the vertical ascending navigation key of location knuckle foundry goods on the horizontal plate of location otic placode respectively, be provided with the annular boss of location knuckle foundry goods on the up end of rectangular block, be provided with the lug that supports the knuckle foundry goods around the rectangular block.
The tool bottom plate is of a rectangular flat plate structure, pin holes and bolt holes connected with a machine tool workbench and threaded holes connected with the support frame are uniformly distributed in the tool bottom plate, and threaded holes connected with an electric box are also uniformly distributed in the side face of the rectangular flat plate.
The bottom of the support frame is provided with a connecting boss which is fixedly integrated with the U-shaped frame, bolt holes which are connected with the tool bottom plate are uniformly distributed on the connecting boss, and the connecting boss and the tool bottom plate are fixedly connected through bolts.
The T-shaped boss at the bottom of the guide sleeve is provided with a bolt hole connected with the cylinder, the T-shaped boss and the cylinder are fixedly connected through a bolt, and a connecting rod at the top of the guide sleeve is provided with a lock pin hole connected with the special-shaped pressing plate.
The lock pin connecting plate is a waist-shaped flat plate, and two ends of the waist-shaped flat plate are provided with lock pin holes.
One end of the pull rod is provided with a thread connected with a piston rod of the air cylinder, and the other end of the pull rod is provided with a lock pin hole connected with the special-shaped pressing plate.
The air cylinder front side on install the cylinder choke valve of adjustment cylinder velocity of motion to be provided with the dust cover of avoiding the dust to get into the cylinder, the dust cover is fixed on support frame and frock bottom plate, still have on the cylinder compress tightly or relax the state the information and transmit the magnetism inductive switch for numerical control automatic control equipment through the aviation plug.
An electromagnetic valve and an aviation plug are arranged in the electric box, one end of the electromagnetic valve is connected with an external high-pressure air source, and the other end of the electromagnetic valve is connected with the air cylinder through a ventilation pipeline; the outer end of the aviation plug is connected with the numerical control automatic control equipment, and the inner end of the aviation plug is connected with the electromagnetic valve.
The working principle of the invention is as follows: firstly, a knuckle casting is installed on a profiling positioning block, when a numerical control automatic control device sends a compaction instruction, an instruction signal is transmitted to an electromagnetic valve through an aviation plug, the electromagnetic valve opens an air inlet valve after receiving the signal, an external high-pressure air source reaches the lower part of an air cylinder through the electromagnetic valve and an air vent pipeline, high-pressure air enters the air cylinder and pushes a piston of the air cylinder to start rising, the piston drives a pull rod to rise, the pull rod drives a special-shaped pressing plate to move outwards and downwards to compact the knuckle casting on the profiling positioning block, compaction is completed, and the numerical control automatic control device can polish the knuckle casting; when the numerical control automatic control equipment sends a loosening instruction, an instruction signal is transmitted to the electromagnetic valve through the aviation plug, the electromagnetic valve opens the exhaust valve after receiving the signal, external high-pressure gas reaches the upper part of the cylinder through the electromagnetic valve and the ventilation pipeline, the piston of the cylinder is pushed to start to descend, the piston of the cylinder drives the pull rod to descend, and the pull rod drives the two special-shaped pressing plates 7 to move inwards and upwards to complete loosening.
The invention has the beneficial effects that: the grinding tool changes the existing mode of grinding a blank casting on a common grinding machine through manual hand, the numerical control automatic control equipment and the grinding tool are adopted, the non-ground knuckle casting is installed on a profiling positioning block manufactured according to the shape of the knuckle casting, the pneumatic device is utilized to automatically compress, burrs of the knuckle casting are ground through the numerical control automatic control equipment, a pouring gate is remained, dead heads are remained and the like, the tool is scientific in design, the operation is convenient and fast, the manual grinding is not needed, the one-time grinding is in place, the manual grinding error is avoided, the ground knuckle blank casting is small in size error, the consistency is good, the quality of a product can be completely guaranteed, the production efficiency is improved, the manufacturing cost and the labor cost are greatly reduced, and the guarantee is provided for enterprises to produce high-quality automobile knuckle products in batches.
Drawings
FIG. 1 is a schematic side view of the connection structure of the present invention;
FIG. 2 is a side view of the invention after installation of the knuckle casting;
FIG. 3 is a rear side view of the invention after installation of the knuckle casting;
FIG. 4 is a schematic front view of the present invention;
FIG. 5 is a cross-sectional front view of the invention after installation of the knuckle casting;
FIG. 6 is a left side schematic view of FIG. 5;
FIG. 7 is a side view of a contoured locating block of the present invention;
FIG. 8 is a side view of the support bracket of the present invention;
FIG. 9 is a side view of the guide sleeve of the present invention;
FIG. 10 is a side view of the tie rod of the present invention;
the labels in the figure are: 1. the machine tool comprises a machine tool workbench, 2, a tool bottom plate, 3, a support frame, 4, a cylinder, 5, a guide sleeve, 6, a pull rod, 7, a profiling positioning block, 8, a special-shaped pressing plate, 9, a lock pin connecting plate, 10 and an electric box bushing. 11. The dust cover 12, the connecting bolt 13, the positioning bolt 14, the electromagnetic valve 15, the aviation plug 16, the air cylinder throttle valve 17 and the steering knuckle casting.
Detailed Description
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, a novel automobile steering knuckle casting burr grinding tool comprises a tool bottom plate 2, a support frame 3, a cylinder 4, a guide sleeve 5, a pull rod 6, a profiling positioning block 7, a special-shaped pressing plate 8, a lock pin connecting plate 9, an electric box 10, a dust cover 11, a connecting bolt 12 and a positioning bolt 13; the tool bottom plate 2 is arranged on the machine tool workbench 1 and is fixed with the machine tool workbench 1 through a positioning bolt 13, the tool bottom plate 2 is of a rectangular flat plate structure, pin holes and bolt holes connected with the machine tool workbench 1 and threaded holes connected with the support frame 3 are uniformly distributed on the tool bottom plate, and threaded holes connected with the electric box 10 are also uniformly distributed on the side surface of the rectangular flat plate; the support frame 3 is arranged on the tool bottom plate 2, the support frame 3 is of a U-shaped frame structure, the opening of the U-shaped frame is upward, the bottom of the support frame 3 is provided with a connecting boss which is fixedly integrated with the U-shaped frame, bolt holes connected with the tool bottom plate 2 are uniformly distributed on the connecting boss, and the connecting boss and the bolt holes are fixedly connected through bolts; the steering knuckle positioning device is characterized in that the profiling positioning block 7 is arranged at the upper end part of the support frame 3, the profiling positioning block 7 is a rectangular block manufactured according to the positioning shape of a steering knuckle casting 17, mounting grooves are symmetrically formed in four corners of the rectangular block, mounting holes connected with the support frame 3 are formed in the bottom surface of the mounting groove, the rectangular block is fixed on the support frame 3 through bolts, L-shaped positioning lug plates are symmetrically arranged on two side surfaces of the rectangular block, vertical and upward positioning keys for positioning the steering knuckle casting 17 are respectively arranged on horizontal plates of the positioning lug plates, a through hole passing through the guide sleeve 5 is formed in the center of the rectangular block, an annular boss for positioning the steering knuckle casting 17 is arranged on the upper end surface of the rectangular block, and convex blocks for supporting the steering knuckle casting 17 are arranged on the periphery of the rectangular block; the air cylinder 4 is arranged in the hollow part of the U-shaped frame of the support frame 3, the air cylinder throttle valve 16 for adjusting the movement speed of the air cylinder 4 is arranged on the front side surface of the air cylinder 4, the dust cover 11 is arranged on the side, the dust cover 11 is fixed on the support frame 3 and the tool bottom plate 2 to prevent dust from entering the air cylinder 4, and the air cylinder 4 is also provided with a magnetic induction switch for transmitting information that the air cylinder 4 is in a pressing or loosening state to the numerical control automatic control equipment through an aviation plug 15; the guide sleeve 5 is arranged on the end face of the air cylinder 4, the guide sleeve 5 is of a cylindrical sleeve structure, the bottom of the cylindrical sleeve structure is provided with a T-shaped boss, the T-shaped boss is provided with a bolt hole connected with the air cylinder 4 and fixedly connected with the air cylinder 4 through a bolt, a central hole of the guide sleeve 5 corresponds to a piston rod of the air cylinder 4, the top of the guide sleeve 5 is symmetrically provided with a convex connecting rod which is fixedly integrated with the guide sleeve 5, and the connecting rod is provided with a lock pin hole connected with the special-shaped pressing plate 8; the pull rod 6 is arranged in a central hole of the guide sleeve 5 and is in clearance fit with the guide sleeve 5, one end of the pull rod 6 is provided with a thread connected with a piston rod of the cylinder 4, the thread end penetrates through the central hole of the guide sleeve 5 to be in threaded connection with the piston rod of the cylinder 4, the other end of the pull rod 6 is provided with a lock pin hole connected with the special-shaped pressing plate 8, and the lock pin hole is respectively hinged with the two special-shaped pressing plates 8 through a lock pin; the special-shaped pressing plates 8 are respectively arranged on two sides of the top of the pull rod 6, and one end of each special-shaped pressing plate 8 is respectively hinged with the connecting rod on the top of the guide sleeve 5 through two lock pin connecting plates 9; the lock pin connecting plate 9 is a waist-shaped flat plate, and two ends of the waist-shaped flat plate are provided with lock pin holes; the electric box 10 is arranged on the left side of the tool bottom plate 2 and fixedly connected with the tool bottom plate through a connecting bolt 12, an electromagnetic valve 14 and an aviation plug 15 are arranged in the electric box 10, one end of the electromagnetic valve 14 is connected with an external high-pressure air source, and the other end of the electromagnetic valve 14 is connected with the air cylinder 4 through a ventilation pipeline and used for controlling the air cylinder 4 to move up and down; the outer end of the aviation plug 15 is connected with the numerical control automatic control equipment, the inner end of the aviation plug 15 is connected with the electromagnetic valve 10, and the numerical control automatic control equipment instruction is transmitted to the electromagnetic valve 10.
The specific operation process of the invention is as follows: firstly, a knuckle casting 17 is arranged on a profiling positioning block 7, the installation clearance is smaller than 0.2mm, the knuckle casting 17 cannot shake front, back, left and right, when a numerical control automatic control device sends a pressing instruction, the instruction signal is transmitted to an electromagnetic valve 14 through an aviation plug 15, the electromagnetic valve 14 opens an air inlet valve after receiving the signal, an external high-pressure air source reaches the lower part of an air cylinder 4 through the electromagnetic valve 14 and an air duct, the high-pressure air enters the air cylinder 4 and pushes a piston to start to ascend, the piston drives a pull rod 6 to ascend, the pull rod 6 drives a special-shaped pressing plate 8 to move outwards and downwards to press the knuckle casting 17 on the profiling positioning block 7 to finish the pressing action, the numerical control automatic control device can polish the knuckle casting 17, an air cylinder throttle valve 16 arranged on the side surface of the air cylinder 4 is used for adjusting the movement speed and the pressing speed of the air cylinder 4 to ensure the stable ascending and descending operation of the pull rod 6, The process of pressing the steering knuckle casting 17 by the special-shaped pressing plate 8 is stable and reliable; when the numerical control automatic control equipment sends a loosening instruction, an instruction signal is transmitted to the electromagnetic valve 14 through the aviation plug 15, the electromagnetic valve 14 opens the exhaust valve after receiving the signal, external high-pressure gas reaches the upper part of the cylinder 4 through the electromagnetic valve 14 and the ventilation pipeline, the piston is pushed to start to descend, the piston drives the pull rod 6 to descend, and the pull rod 6 drives the special-shaped pressing plate 8 to move inwards and upwards to complete loosening.
The detailed parts of the invention are not prior art, the common general knowledge of the specific structures and characteristics of the embodiments is not described, and the same similar parts can be referred to each other. The invention is applied to the enterprise, has good effect and is proposed to be popularized.
Claims (9)
1. The utility model provides a novel automobile steering knuckle foundry goods burr frock of polishing, includes lathe workstation (1), tool bottom plate (2), support frame (3), cylinder (4), uide bushing (5), pull rod (6), profile modeling locating piece (7), dysmorphism clamp plate (8), lockpin connecting plate (9), electric box (10), dust cover (11), connecting bolt (12) and positioning bolt (13), characterized by: the tool bottom plate (2) is arranged on the machine tool workbench (1) and is fixed with the machine tool workbench (1) through a positioning bolt (13); the support frame (3) is arranged on the tool bottom plate (2), the support frame (3) is of a U-shaped frame structure, and an opening of the U-shaped frame is upward; the profiling positioning block (7) is arranged at the upper end part of the support frame (3), and a through hole passing through the guide sleeve (5) is formed in the center part of the profiling positioning block (7); the cylinder (4) is arranged in the hollow part of the U-shaped frame of the support frame (3); the guide sleeve (5) is arranged on the end face of the cylinder (4), the guide sleeve (5) is of a cylindrical sleeve structure, the bottom of the cylindrical sleeve structure is provided with a T-shaped boss, a central hole of the sleeve corresponds to a piston rod of the cylinder (4), and the top of the guide sleeve (5) is symmetrically provided with convex connecting rods which are fixed with the guide sleeve (5) into a whole; the pull rod (6) is arranged in a center hole of the guide sleeve (5) and is in clearance fit with the guide sleeve (5), one end of the pull rod (6) penetrates through the center hole of the guide sleeve (5) to be in threaded connection with a piston rod of the air cylinder (4), and the other end of the pull rod is hinged with the two special-shaped pressing plates (8) through lock pins; the special-shaped pressing plates (8) are respectively arranged on two sides of the top of the pull rod (6), and one end of each special-shaped pressing plate (8) is hinged with the connecting rod on the top of the guide sleeve (5) through two lock pin connecting plates (9); the electric box (10) is arranged on the left side of the tooling bottom plate (2) and fixedly connected with the tooling bottom plate through a connecting bolt (12).
2. The novel automobile steering knuckle casting burr grinding tool is characterized in that: profile modeling locating piece (7) for the rectangle piece according to the location shape preparation of knuckle foundry goods (17), the four corners symmetry of rectangle piece is provided with the mounting groove, be provided with the mounting hole of being connected with support frame (3) on the mounting groove bottom surface, the both sides face symmetry of rectangle piece is provided with L shape location otic placode, be provided with the vertical ascending navigation key of location knuckle foundry goods (17) on the horizontal plate of location otic placode respectively, be provided with the annular boss of location knuckle foundry goods (17) on the up end of rectangle piece, be provided with the lug that supports knuckle foundry goods (17) around the rectangle piece.
3. The novel automobile steering knuckle casting burr grinding tool is characterized in that: the tool bottom plate (2) is of a rectangular flat plate structure, pin holes and bolt holes connected with a machine tool workbench (1) and threaded holes connected with a support frame (3) are uniformly distributed in the tool bottom plate, and threaded holes connected with an electric box (10) are uniformly distributed in the side face of the rectangular flat plate.
4. The novel automobile steering knuckle casting burr grinding tool is characterized in that: the bottom of the support frame (3) is provided with a connecting boss which is fixedly integrated with the U-shaped frame, bolt holes which are connected with the tool bottom plate (2) are uniformly distributed on the connecting boss, and the connecting boss and the tool bottom plate are fixedly connected through bolts.
5. The novel automobile steering knuckle casting burr grinding tool is characterized in that: the T-shaped boss at the bottom of the guide sleeve (5) is provided with a bolt hole connected with the air cylinder (4), the guide sleeve and the air cylinder are fixedly connected through a bolt, and a connecting rod at the top of the guide sleeve (5) is provided with a lock pin hole connected with the special-shaped pressing plate (8).
6. The novel automobile steering knuckle casting burr grinding tool is characterized in that: the lock pin connecting plate (9) is a waist-shaped flat plate, and two ends of the waist-shaped flat plate are provided with lock pin holes.
7. The novel automobile steering knuckle casting burr grinding tool is characterized in that: one end of the pull rod (6) is provided with a thread connected with a piston rod of the air cylinder (4), and the other end of the pull rod is provided with a lock pin hole connected with the special-shaped pressing plate (8).
8. The novel automobile steering knuckle casting burr grinding tool is characterized in that: the air cylinder (4) front flank on install cylinder choke valve (16) of adjustment cylinder velocity of motion to be provided with dust cover (11) of avoiding the dust to get into cylinder (4), dust cover (11) are fixed on support frame (3) and frock bottom plate (2), still have on cylinder (4) compress tightly or relax the information of state and transmit the magnetism inductive switch for numerical control automatic control equipment through aviation plug (15).
9. The novel automobile steering knuckle casting burr grinding tool is characterized in that: an electromagnetic valve (14) and an aviation plug (15) are arranged in the electrical box (10), one end of the electromagnetic valve (14) is connected with an external high-pressure air source, and the other end of the electromagnetic valve (14) is connected with the air cylinder (4) through a ventilation pipeline; the outer end of the aviation plug (15) is connected with the numerical control automatic control equipment, and the inner end of the aviation plug (15) is connected with the electromagnetic valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896866.5A CN113386049A (en) | 2021-08-05 | 2021-08-05 | Novel automobile steering knuckle casting burr polishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896866.5A CN113386049A (en) | 2021-08-05 | 2021-08-05 | Novel automobile steering knuckle casting burr polishing tool |
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| Publication Number | Publication Date |
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| CN113386049A true CN113386049A (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110896866.5A Pending CN113386049A (en) | 2021-08-05 | 2021-08-05 | Novel automobile steering knuckle casting burr polishing tool |
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| CN (1) | CN113386049A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454000A (en) * | 2022-01-20 | 2022-05-10 | 宁波润轴科技有限公司 | Knuckle, knuckle bearing hole machining equipment and knuckle machining process |
-
2021
- 2021-08-05 CN CN202110896866.5A patent/CN113386049A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454000A (en) * | 2022-01-20 | 2022-05-10 | 宁波润轴科技有限公司 | Knuckle, knuckle bearing hole machining equipment and knuckle machining process |
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