CN209223782U - A kind of spring chamfering machine - Google Patents
A kind of spring chamfering machine Download PDFInfo
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- CN209223782U CN209223782U CN201821960912.3U CN201821960912U CN209223782U CN 209223782 U CN209223782 U CN 209223782U CN 201821960912 U CN201821960912 U CN 201821960912U CN 209223782 U CN209223782 U CN 209223782U
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- spring
- grinding wheel
- supporting plate
- put flitch
- station
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Abstract
The utility model discloses a kind of spring chamfering machines, it is related to spring process equipment, including station, station is equipped with supporting plate, station is equipped with chamfer angle component, chamfer angle component includes the first grinding wheel and the second grinding wheel, it is arranged on first grinding wheel fluted, the sidewall slope of groove is arranged to form the rubbing surface inconsistent with spring outwards edge, second grinding wheel is arranged in truncated cone-shaped and its side wall is formed and the inconsistent rubbing surface in spring inside edge, the regulating mechanism for adjusting support Board position is provided between supporting plate and station, when supporting plate is fixed, the spring being placed on supporting plate is coaxially set with the first grinding wheel and the second grinding wheel, driving assembly is installed on station, driving assembly and first grinding wheel, the transmission connection of second grinding wheel, spring moves at the first grinding wheel or the second grinding wheel along the length direction of supporting plate Chamfering operation is carried out, so that carrying out inner chamfer and outer chamfer processing to spring.
Description
Technical field
The utility model relates to a kind of spring process equipments, more specifically, it relates to a kind of spring chamfering machine.
Background technique
After spring is produced by torsion machine, the both ends outer ledge of spring generally jagged can wait difficult to handle impurity,
Therefore, it is necessary to the outer ledges to both ends of the spring to carry out outer chamfer processing, so that the outer ledge of both ends of the spring generates smoothly
Outer chamfer inclined-plane 01(is as shown in Figure 1), to not injure the hand of operator.On the other hand, in order to make spring and other equipment
On mounting hole cooperation when be easy insertion, both ends of the spring inside edge carry out inner chamfer processing so that the inner side edge of both ends of the spring
It is as shown in Figure 1 that edge generates smooth inner chamfer inclined-plane 02().
Based on the above issues, need it is a kind of can to the outer ledge of both ends of the spring carry out outer chamfer and to inside edge carry out
The equipment of inner chamfer.
Utility model content
It is difficult to realize carry out inner chamfer processing to spring end for beveler in practice and outer chamfer handles this
One problem, the utility model aim are to propose a kind of spring chamfering machine, by the way that driving mechanism, driving mechanism drive first is arranged
Grinding wheel and the rotation of the second grinding wheel carry out chamfering to spring, realize and carry out inner chamfer processing and outer chamfer processing, specific side to spring
Case is as follows:
A kind of spring chamfering machine, including station, the station are equipped with the supporting plate for placing spring, the station
The chamfer angle component that chamfering is carried out to spring is equipped in one end of the supporting plate, the chamfer angle component includes arranged side by side to bullet
Spring carries out the first grinding wheel of inner chamfer and carries out the second grinding wheel of outer chamfer to spring, holds described on first grinding wheel
The side setting of supporting plate is fluted, and the sidewall slope of the groove is arranged to form the rubbing surface inconsistent with spring outwards edge,
Second grinding wheel is arranged in truncated cone-shaped and its side wall is formed and the inconsistent rubbing surface in spring inside edge；
The regulating mechanism for adjusting support Board position is provided between the supporting plate and station, when the supporting plate
When fixed, spring and first grinding wheel and the second grinding wheel being placed on supporting plate are coaxially set；
Driving assembly is installed, the driving component connects with first grinding wheel, the transmission of the second grinding wheel on the station
It connects, the spring moves to progress chamfering operation at first grinding wheel or the second grinding wheel along the length direction of the supporting plate.
Through the above technical solutions, adjusting the axis and first that the regulating mechanism makes the spring being placed on supporting plate
The axis of grinding wheel or the second grinding wheel keeps coaxial, then drives the driving component, and driving assembly drives the first grinding wheel and the second sand
Wheel rotation, so that outer chamfer inclined-plane or inner chamfer inclined-plane are obtained with the outer ledge of the spring of friction face contact or inside edge,
Outer chamfer processing and inner chamfer processing are carried out to spring on the same device to realize, avoid needing to use in practice
Two machines carry out inner chamfer processing to spring respectively and outer chamfer is handled, and reduce operating cost.
Further, the driving component include the first driving motor and the second driving motor, first grinding wheel with
The output shaft of first driving motor is coaxially connected, and the output shaft of second grinding wheel and second driving motor coaxially connects
It connects.
Through the above technical solutions, first driving motor, the first driving motor respectively drive the first grinding wheel and second
Grinding wheel rotation so that the first grinding wheel and the second grinding wheel work independently so that operator can simultaneously to spring carry out in fall
Angle processing and outer chamfer processing, improve working efficiency.
Further, the supporting plate is divided into the first put flitch and the second put flitch, first put flitch, second
Put flitch setting corresponding with the first grinding wheel and the second grinding wheel respectively, and first put flitch, the second put flitch are disposed as V
Shape plate.
Through the above technical solutions, V shaped slab be stably placed at spring can in the first put flitch or the second put flitch,
And spring can be individually placed to carry out inner chamfer or outer chamfer in the first put flitch or the second put flitch, will not influence each other, and guarantee
Inner chamfer processing and outer chamfer are handled while being carried out.
Further, the station includes fixing seat and mounting rack, and first driving motor and second drive
Motor is detachably connected in the fixing seat, and the supporting plate is mounted on the mounting rack；
The regulating mechanism includes being set between the supporting plate and mounting rack to be used to drive supporting plate in vertical side
To the lifting device of up and down motion.
Through the above technical solutions, since motor at work can strenuous vibration, the first driving motor and the second driving
Motor stabilizing is mounted in fixing seat, avoids the first grinding wheel and the second grinding wheel from shaking, while supporting plate is mounted on mounting rack, is made
Be provided separately between spring and the first grinding wheel and the second grinding wheel, when need to different size of spring carry out chamfered
When, make the axis holding of the axis and the first grinding wheel and the second grinding wheel of spring same by the lifting device on adjusting mounting rack
Axis, to increase the scope of application of the chamfering device.
Further, offer through-hole on the mounting rack, the lifting device include be respectively arranged at the first put flitch,
The adjusting bolt at the second put flitch both ends and two locking nuts being threadedly connected on the adjusting bolt, the adjusting
One end of bolt is fixedly connected with the bottom of first put flitch, the second put flitch, and the adjusting bolt other end passes through institute
It states through-hole and is locked by two locking nuts.
Through the above technical solutions, by turning locking nut, drive adjust bolt in the vertical direction up and down adjustment from
And the first put flitch or the second put flitch are adjusted in the position of vertical direction, realization is placed in the first put flitch or the second put flitch
On spring axis and the axis of the first grinding wheel or the second grinding wheel keep it is coaxial.
Further, the through-hole is set as the first kidney slot.
Through the above technical solutions, make adjust bolt can also side-to-side movement in the horizontal direction, thus in horizontal direction
The position of upper amendment spring, so that spring is realized and the first grinding wheel and the second grinding wheel coaxial line.
Further, connecting rod, described connecting rod one end and the fixation are provided between the fixing seat and mounting rack
Seat rotation connection, the other end offer the second kidney slot, connection bolt, the connection bolt are equipped in second kidney slot
It is fixedly connected through locking nut with the mounting rack.
It drives connection bolt to move in the second kidney slot through the above technical solutions, turning locking nut, changes installation
The distance between frame and fixing seat, to adjust the first put flitch or the second put flitch upper spring and the first grinding wheel or the second grinding wheel
Between distance so that the utility model is applicable to the spring of different length improve the applicability of this beveler.
Further, dovetail groove, two swallows are offered on the two sidewalls of first put flitch and the second put flitch
Slidably connect a sliding shoe on stern notch, the end face of the sliding shoe offers the hopper of setting for placing spring, on the sliding shoe
It is hinged with a pressure plate for holddown spring, the sliding shoe is equipped with the locking member for locking the pressure plate.
Through the above technical solutions, spring is placed in setting in hopper on sliding shoe, by pressure plate by spring compression
In sliding shoe, makes sliding shoe close to the first grinding wheel or the second grinding wheel by sliding the sliding shoe, chamfering is carried out to spring
Processing, without operator directly with hand grasp spring, avoid operator lose to spring control when, the hand of operator with
First grinding wheel or the second grinding wheel friction, cause safety accident.
Further, the one side of the pressure plate towards the spring is equipped with anti-slip layer.
Through the above technical solutions, anti-slip layer increases the frictional force between pressure plate and spring, so that spring stabilization is in
It sets in hopper, guarantees being normally carried out for chamfered.
Further, one end in first put flitch and the second put flitch far from the driving component is equipped with electronic push away
Bar and its control device, the telescopic end of the electric pushrod are fixedly connected with the sliding shoe, described in the electric pushrod promotion
Sliding shoe is moved back and forth along first put flitch or the second put flitch length direction.
Through the above technical solutions, driving electric pushrod to drive sliding shoe in the first put flitch and second by control device
It reciprocatingly slides in put flitch, so that entire chamfered is easy to operate and quick.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) driving assembly drives the first grinding wheel and the second grinding wheel to rotate the rubbing surface so that the first grinding wheel and the second grinding wheel
It is contacted with the spring being placed on supporting plate, realizes and inner chamfer processing and outer chamfer processing are carried out to spring；
(2) sliding shoe that spring is placed by installing in the first put flitch and the second put flitch, pushes sliding shoe to make
Spring avoids operator from holding spring and carries out chamfered, prevent the hair of safety accident close to the first grinding wheel or the second grinding wheel
It is raw.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of spring；
Fig. 2 is the overall schematic of the embodiments of the present invention one；
Fig. 3 is the overall schematic of the embodiments of the present invention two；
Fig. 4 is the partial enlargement diagram in the portion A in Fig. 3；
Fig. 5 is the overall schematic that the utility model embodiment two is prominent control device.
Appended drawing reference: 01, outer chamfer inclined-plane；02, inner chamfer inclined-plane；1, station；11, fixing seat；12, mounting rack；
121, through-hole；2, supporting plate；21, the first put flitch；22, the second put flitch；3, chamfer angle component；31, the first grinding wheel；311, recessed
Slot；32, the second grinding wheel；4, driving assembly；41, the first driving motor；42, the second driving motor；5, lifting device；51, it adjusts
Bolt；52, locking nut；6, connecting rod；61, bolt is connected；62, the second kidney slot；7, dovetail groove；8, sliding shoe；81, material is set
Slot；82, lock hole；9, pressure plate；91, anti-slip layer；10, pin is locked；13, electric pushrod；14, control device.
Specific embodiment
Below with reference to examples and drawings, the utility model is described in further detail, but the implementation of the utility model
Mode is not limited only to this.
Embodiment one
As shown in Fig. 2, a kind of spring chamfering machine, including station 1, station 1 are equipped with the supporting plate 2 for placing spring,
Station 1 is equipped with the chamfer angle component 3 that chamfering is carried out to spring in one end of supporting plate 2, and chamfer angle component 3 includes pair arranged side by side
Spring carries out the first grinding wheel 31 of inner chamfer and carries out the second grinding wheel 32 of outer chamfer to spring, and direction is held on the first grinding wheel 31
The side setting fluted 311 of supporting plate 2, the sidewall slope of groove 311 is arranged to form the friction inconsistent with spring outwards edge
Face, the second grinding wheel 32 is arranged in truncated cone-shaped and its side wall is formed and the inconsistent rubbing surface in spring inside edge.Supporting plate 2 and behaviour
Make to be provided with the regulating mechanism for adjusting 2 position of supporting plate between platform 1, by adjusting above-mentioned regulating mechanism, until being placed in
Spring on supporting plate 2 is coaxially set with the first grinding wheel 31 and the second grinding wheel 32, and driving assembly 4 is equipped on station 1,
Driving assembly 4 and the first grinding wheel 31, the second grinding wheel 32 are sequentially connected, and drive the first grinding wheel 31, the rotation of the second grinding wheel 32, operator
Member's push the spring is moved along the length direction of supporting plate 2, until the rubbing surface of spring and the first grinding wheel 31 or the second grinding wheel 32 connects
Touching carries out chamfering operation.
As shown in Fig. 2, specifically, driving assembly 4 includes the first driving motor 41 and the second driving motor 42, the first sand
The shaft of wheel 31 and the output shaft of the first driving motor 41 are coaxially connected, so that the first driving motor 41 drives 31 turns of the first grinding wheel
Dynamic, the shaft of the second grinding wheel 32 and the output shaft of the second driving motor 42 are coaxially connected, so that the second driving motor 42 drive the
The rotation of two grinding wheels 32.Station 1 includes the fixing seat 11 fixed on the ground and the peace for being placed in 11 adjacent position of fixing seat
Shelve 12, the bottom plate of the first driving motor 41 and the second driving motor 42 is detachably connected on fixing seat 11 by the way that bolt is arranged
Table top on, the first grinding wheel of vibration influence 31 for preventing the first driving motor 41 and the second driving motor 42 from generating when working and the
The work of two grinding wheels 32.
As shown in Fig. 2, supporting plate 2 is mounted on mounting rack 12, regulating mechanism includes being set to supporting plate 2 and mounting rack 12
Between for driving the lower lifting device 5 moved in the vertical direction of supporting plate 2, pass through and adjust lifting device 5, change support
The position of plate 2 in the vertical direction, so that the spring being placed on supporting plate 2 is kept and 31 the second grinding wheels of the first grinding wheel
32 are coaxially set.Specifically, supporting plate 2 is divided into the first put flitch 21 and the second put flitch 22, the first put flitch 21,
The setting corresponding with the first grinding wheel 31 and the second grinding wheel 32 respectively of two put flitch 22 so that multiple springs carry out outer chamfer processing and it is interior
It can be carried out in the first put flitch 21, the second put flitch 22 respectively when chamfered, avoid influencing each other, and the first put flitch
21, the second put flitch 22 is disposed as V shaped slab, and spring is enabled to be stably placed at the first put flitch 21 or the second put flitch 22
On.
As shown in Fig. 2, offering through-hole 121 on mounting rack 12, above-mentioned lifting device 5 includes being set to the first put flitch
21, the adjusting bolt 51 at 22 both ends of the second put flitch and two locking nuts 52 being threadedly connected on adjusting bolt 51,
The one end for adjusting bolt 51 is fixedly connected with the bottom of the first put flitch 21, the second put flitch 22, is adjusted 51 other end of bolt and is worn
It crosses through-hole 121 and is locked by two locking nuts 52.In real work, when needing to carry out chamfering to the spring of different size, lead to
It crosses to change and adjusts the position of bolt 51 in the vertical direction to change the first put flitch 21, the second put flitch 22 in vertical direction
On position so that the axis coaxle of the axis of spring and the first grinding wheel 31, the second grinding wheel 32.
Further, through-hole 121 is set as the first kidney slot, so that adjusting bolt 51 can also move left and right in the horizontal direction
It is dynamic, thus the position of amendment the first put flitch 21 and the second put flitch 22 in the horizontal direction, to reduce spring and first
The whether coaxial error of axis between grinding wheel 31 and the second grinding wheel 32.
Connecting rod 6 is provided between fixing seat 11 and mounting rack 12,6 one end of connecting rod and fixing seat 11 are rotatablely connected, separately
One end offers the second kidney slot 62, and connection bolt 61 is equipped in the second kidney slot 62, connects bolt 61 through locking nut 52
It is fixedly connected with mounting rack 12, when the spring shorter to length carries out chamfer machining, by changing connection bolt 61 in the second waist
Position in shape hole 62 enables spring and the first grinding wheel 31 to reduce the distance between mounting rack 12 and fixing seat 11
It is contacted with the second grinding wheel 32.
Embodiment two
A kind of spring chamfering machine, the difference with embodiment one are: as shown in figure 4, the first put flitch 21 and second sets material
A dovetail groove 7 is offered on the two sidewalls of plate 22, and a sliding shoe 8, the end of sliding shoe 8 are slidably connected on two dovetail grooves 7
Face, which offers, places spring and sets hopper 81, and a pressure plate 9 for holddown spring, pressure plate 9 direction are hinged on sliding shoe 8
It is as shown in Figure 4 that the one side of spring is equipped with anti-slip layer 91(), anti-slip layer 91 is specifically configured to shaggy rubber layer, increases bullet
Frictional force between spring and pressure plate 9.As shown in figure 4, sliding shoe 8 is equipped with the locking member of locking pressure plate 9, specifically, lock
Tight part includes locking pin 10, and pressure plate 9 offers lock hole 82 far from one end of itself and 8 hinged place of sliding shoe, on sliding shoe 8
Lock hole 82 is offered jointly, spring is placed on the setting in hopper 81 of sliding shoe 8, is rotated pressure plate 9 for spring compression, will be locked
It in 10 insertion lock hole 82 of rationed marketing nail, realizes locking pressure plate 9, spring is avoided to pop up from sliding shoe 8, operator, which pushes, to be slided
Motion block 8 drives spring close to the first grinding wheel 31 or the second grinding wheel 32, avoids the directly hand-held spring of operator, prevents safety accident
Generation.
Further, as shown in figure 3, one end in the first put flitch 21 and the second put flitch 22 far from driving assembly 4 is equal
It is as shown in Figure 5 equipped with electric pushrod 13 and its control device 14(), the telescopic end of electric pushrod 13 is fixedly connected with sliding shoe 8,
13 other end of electric pushrod is fixed in the first put flitch 21 or the second put flitch 22.It is electronic to push away by starting control device 14
Bar 13 pushes sliding shoe 8 to move back and forth along the first put flitch 21 or 22 length direction of the second put flitch automatically, so that spring
Chamfered is carried out close to the first grinding wheel 31 or the second grinding wheel 32, after chamfering is completed, electric pushrod 13 drives sliding shoe 8 separate
First grinding wheel 31 or the second grinding wheel 32, facilitate operator to remove spring.
The course of work of the utility model is as follows:
The spring for needing chamfering is individually placed in the first put flitch 21 and the second put flitch 22 by operator, passes through tune
Whole lifting device 5 to be placed in the first put flitch 21 and spring and the first grinding wheel 31 and the second grinding wheel in the second put flitch 22
32 keep coaxial lines, driving assembly 4 drive the first grinding wheel 31 and the second grinding wheel 32 rotation, to spring carry out outer chamfer processing and
Inner chamfer processing.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of spring chamfering machine, including station (1), which is characterized in that the station (1), which is equipped with, places holding for spring
Supporting plate (2), one end of station (1) the Yu Suoshu supporting plate (2) are equipped with the chamfer angle component (3) that chamfering is carried out to spring, institute
Chamfer angle component (3) is stated to include the first grinding wheel (31) arranged side by side to spring progress inner chamfer and carry out outer chamfer to spring
The second grinding wheel (32), fluted (311) are set towards the side of the supporting plate (2) on first grinding wheel (31), it is described
The sidewall slope of groove (311) is arranged to form the rubbing surface inconsistent with spring outwards edge, and second grinding wheel (32) is in circle
The setting of platform shape and the formation of its side wall and the inconsistent rubbing surface in spring inside edge；
The regulating mechanism for adjusting supporting plate (2) position is provided between the supporting plate (2) and station (1), when described
When supporting plate (2) is fixed, the spring and first grinding wheel (31) and the second grinding wheel (32) being placed on supporting plate (2) are coaxial
Line setting；
It is equipped with driving assembly (4) on the station (1), the driving component (4) and first grinding wheel (31), the second sand
(32) transmission connection is taken turns, the spring moves to first grinding wheel (31) or second along the length direction of the supporting plate (2)
Chamfering operation is carried out at grinding wheel (32).
2. spring chamfering machine according to claim 1, which is characterized in that the driving component (4) includes the first driving electricity
The output shaft of machine (41) and the second driving motor (42), first grinding wheel (31) and first driving motor (41) is coaxial
Connection, the output shaft of second grinding wheel (32) and second driving motor (42) are coaxially connected.
3. spring chamfering machine according to claim 2, which is characterized in that the supporting plate (2) is divided into the first put flitch
(21) and the second put flitch (22), first put flitch (21), the second put flitch (22) respectively with the first grinding wheel (31) and
Second grinding wheel (32) corresponding setting, and first put flitch (21), the second put flitch (22) are disposed as V shaped slab.
4. spring chamfering machine according to claim 2, which is characterized in that the station (1) include fixing seat (11) with
And mounting rack (12), first driving motor (41) and the second driving motor (42) are detachably connected on the fixing seat
(11) on, the supporting plate (2) is mounted on the mounting rack (12)；
The regulating mechanism includes being set between the supporting plate (2) and mounting rack (12) to be used to that supporting plate (2) to be driven to exist
The lifting device (5) that vertical direction moves up and down.
5. spring chamfering machine according to claim 4, which is characterized in that offer through-hole on the mounting rack (12)
(121), the lifting device (5) includes the adjusting bolt for being set to the first put flitch (21), the second put flitch (22) both ends
(51) and be threadedly connected to it is described adjusting bolt (51) on two locking nuts (52), it is described adjust bolt (51) one end
It is fixedly connected with the bottom of first put flitch (21), the second put flitch (22), adjusting bolt (51) other end passes through
It the through-hole (121) and is locked by two locking nuts (52).
6. spring chamfering machine according to claim 5, which is characterized in that the through-hole (121) is set as the first kidney slot.
7. spring chamfering machine according to claim 4, which is characterized in that between the fixing seat (11) and mounting rack (12)
It is provided with connecting rod (6), described connecting rod (6) one end and the fixing seat (11) are rotatablely connected, and the other end offers the second waist
Shape hole (62) is equipped with connection bolt (61) in second kidney slot (62), and the connection bolt (61) is through locking nut
(52) it is fixedly connected with the mounting rack (12).
8. spring chamfering machine according to claim 3, which is characterized in that first put flitch (21) and the second put flitch
(22) it is offered on two sidewalls dovetail groove (7), slidably connects a sliding shoe (8), the cunning on two dovetail grooves (7)
The end face of motion block (8), which offers, places setting hopper (81) for spring, and one is hinged on the sliding shoe (8) for holddown spring
Pressure plate (9), the sliding shoe (8) are equipped with the locking member for locking the pressure plate (9).
9. spring chamfering machine according to claim 8, which is characterized in that the pressure plate (9) is towards the one of the spring
Face is equipped with anti-slip layer (91).
10. spring chamfering machine according to claim 8, which is characterized in that first put flitch (21) and second sets material
One end on plate (22) far from the driving component (4) is equipped with electric pushrod (13) and its control device (14), described electronic to push away
The telescopic end of bar (13) is fixedly connected with the sliding shoe (8), and the electric pushrod (13) pushes the sliding shoe (8) along described
First put flitch (21) or the second put flitch (22) length direction move back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960912.3U CN209223782U (en) | 2018-11-24 | 2018-11-24 | A kind of spring chamfering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960912.3U CN209223782U (en) | 2018-11-24 | 2018-11-24 | A kind of spring chamfering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209223782U true CN209223782U (en) | 2019-08-09 |
Family
ID=67504832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821960912.3U Active CN209223782U (en) | 2018-11-24 | 2018-11-24 | A kind of spring chamfering machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN209223782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621434A (en) * | 2020-12-08 | 2021-04-09 | 湖南利钢金属制品有限公司 | Chamfer grinding device is used in galvanized steel pipe processing |
-
2018
- 2018-11-24 CN CN201821960912.3U patent/CN209223782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621434A (en) * | 2020-12-08 | 2021-04-09 | 湖南利钢金属制品有限公司 | Chamfer grinding device is used in galvanized steel pipe processing |
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