CN219966496U - Turbine blade trompil mechanism and placer - Google Patents

Turbine blade trompil mechanism and placer Download PDF

Info

Publication number
CN219966496U
CN219966496U CN202320690415.0U CN202320690415U CN219966496U CN 219966496 U CN219966496 U CN 219966496U CN 202320690415 U CN202320690415 U CN 202320690415U CN 219966496 U CN219966496 U CN 219966496U
Authority
CN
China
Prior art keywords
piece
workbench
turbine blade
wall
rod
Prior art date
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.)
Active
Application number
CN202320690415.0U
Other languages
Chinese (zh)
Inventor
任宝平
张胜
张永红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inner Mongolia Mengdian Huaneng Thermal Power Corp Ltd Wuhai Power Plant
Original Assignee
Inner Mongolia Mengdian Huaneng Thermal Power Corp Ltd Wuhai Power Plant
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inner Mongolia Mengdian Huaneng Thermal Power Corp Ltd Wuhai Power Plant filed Critical Inner Mongolia Mengdian Huaneng Thermal Power Corp Ltd Wuhai Power Plant
Priority to CN202320690415.0U priority Critical patent/CN219966496U/en
Application granted granted Critical
Publication of CN219966496U publication Critical patent/CN219966496U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The utility model discloses a turbine blade perforating mechanism and a placing device, which comprise an adjusting component, wherein the adjusting component comprises a workbench, a driving piece arranged at the top of the workbench, a fixing piece arranged at the top of the driving piece, a mounting piece arranged at the bottom of the fixing piece, a universal wheel arranged at the bottom of the workbench and a plurality of guide rails, wherein the guide rails are arranged on the top of the workbench; the drilling assembly comprises a supporting frame arranged at the top of the workbench, a lifting piece arranged at the top of the supporting frame, and a hole opening piece arranged at the bottom of the lifting piece, wherein the driving piece comprises a first motor arranged at one side of the workbench, a coupler arranged at one side of the first motor, and a bidirectional screw rod arranged at one side of the coupler. The device solves the problems that the fixing structure on the existing perforating device cannot be adjusted according to blades with different lengths and thicknesses, so that the blades with different lengths and thicknesses cannot be fixed, and the application range is limited.

Description

Turbine blade trompil mechanism and placer
Technical Field
The utility model relates to the technical field of turbine processing, in particular to a turbine blade perforating mechanism and a placing device.
Background
The steam turbine is also called a steam turbine engine, and is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with a blade row rotates and simultaneously externally works, the steam turbine is main equipment of a modern thermal power plant and is also used in metallurgical industry, chemical industry and ship power devices, in the production and processing process of the steam turbine, the blades of the steam turbine are required to be perforated, the fixed structure on the existing perforating device cannot be adjusted according to the blades with different lengths and thicknesses, the blades with different lengths and thicknesses cannot be fixed, the application range is limited, the novel steam turbine has the function of placing the blades, and is usually placed on the ground or a working table, so that the area of a working table is occupied, and the blades are easy to be polluted.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
The present utility model has been made in view of the above and/or problems associated with the prior art turbine blade opening mechanisms.
Therefore, the problem to be solved by the utility model is that the fixing structure on the existing perforating device can not be adjusted according to the blades with different lengths and thicknesses, so that the blades with different lengths and thicknesses can not be fixed, and the application range is limited.
In order to solve the technical problems, the utility model provides the following technical scheme: the turbine blade tapping mechanism comprises an adjusting assembly, a driving part, a fixing part, a mounting part, a universal wheel and a control unit, wherein the driving part is arranged at the top of the workbench, the fixing part is arranged at the top of the driving part, the mounting part is arranged at the bottom of the fixing part, the universal wheel is arranged at the bottom of the workbench; the drilling assembly comprises a supporting frame arranged at the top of the workbench, a lifting piece arranged at the top of the supporting frame and a hole opening piece arranged at the bottom of the lifting piece.
As a preferable mode of the turbine blade tapping mechanism of the present utility model, wherein: the driving piece comprises a first motor arranged on one side of the workbench, a coupler arranged on one side of the first motor, and a bidirectional screw rod arranged on one side of the coupler.
As a preferable mode of the turbine blade tapping mechanism of the present utility model, wherein: the driving piece further comprises a fixed block arranged on the outer side of the bidirectional screw rod, a connecting block arranged on one side of the fixed block, and a connecting groove arranged on the outer side of the connecting block.
As a preferable mode of the turbine blade tapping mechanism of the present utility model, wherein: the fixing piece comprises a connecting plate arranged at the top of the fixing block, a supporting plate arranged at one side of the connecting plate, a threaded rod arranged on the inner wall of the connecting plate, and a clamping plate arranged on the outer side of the threaded rod.
As a preferable mode of the turbine blade tapping mechanism of the present utility model, wherein: the fixing piece further comprises a knob arranged at the top of the threaded rod, a limiting block arranged at one side of the clamping plate and a connecting rod arranged on the inner wall of the limiting block.
As a preferable mode of the turbine blade tapping mechanism of the present utility model, wherein: the mounting piece including set up in draw-in groove at fixed block top, set up in the gag lever post of fixed block inner wall, set up in the connection piece of gag lever post one side, set up in connection piece one side spring, set up in the fixture block of connecting plate bottom, and set up in the spacing hole of fixture block inner wall.
As a preferable mode of the turbine blade tapping mechanism of the present utility model, wherein: the lifting piece comprises an air cylinder arranged at the top of the supporting frame, a connecting rod arranged at the bottom of the air cylinder, a transverse plate arranged at the bottom of the connecting rod, a sliding block arranged at one side of the transverse plate, and a sliding rod arranged on the inner wall of the sliding block.
As a preferable mode of the turbine blade tapping mechanism of the present utility model, wherein: the perforating piece comprises a second motor arranged at the bottom of the transverse plate and a drill rod arranged at the bottom of the second motor.
The turbine blade tapping mechanism has the beneficial effects that: through setting up adjusting part, can be convenient for place fixedly to the turbine blade of different length and thickness, facilitate the use has improved the application scope of device.
In view of the fact that the existing hole opening device does not have the function of placing blades, the hole opening device is usually placed on the ground or a workbench surface, not only occupies the area of the workbench, but also is easy to cause the problem that the blades are polluted, and therefore the hole opening mechanism for the turbine blades is provided.
In order to solve the technical problems, the utility model also provides the following technical scheme: a placement device comprising a turbine blade tapping mechanism of any one of the claims; and the storage assembly comprises a protective door arranged on one side of the workbench, a mounting rail arranged on the inner wall of the workbench, a backing plate arranged on the inner wall of the mounting rail, and a limiting piece arranged on the inner wall of the mounting rail.
As a preferred embodiment of the placement device according to the present utility model, wherein: the limiting piece comprises an inserting rod arranged on the inner wall of the mounting rail and an inserting hole arranged on the inner wall of the base plate.
The utility model has the following beneficial effects: the storage assembly is arranged to conveniently place the turbine blades, so that the turbine blades are prevented from being placed on the ground or a working table surface, the area of the working table is occupied, and the phenomenon that the blades are polluted is easy to cause.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic view of a turbine blade opening mechanism according to the present utility model.
FIG. 2 is a schematic view of a connection mechanism between a driving member and a fixing member of a turbine blade tapping mechanism according to the present utility model.
FIG. 3 is a schematic view of a fixture and a mounting for a turbine blade opening mechanism according to the present utility model.
FIG. 4 is a schematic view of a lifter and a tapping member of a turbine blade tapping mechanism according to the present utility model.
Fig. 5 is a schematic view of a placement device according to the present utility model.
Fig. 6 is a schematic view of a stopper of the placement device according to the present utility model.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to FIGS. 1-4, a first embodiment of the present utility model provides a turbine blade tapping mechanism comprising an adjustment assembly 100 and a drilling assembly 200.
Specifically, the adjusting assembly 100 includes a workbench 101, a driving member 102 disposed on the top of the workbench 101, a fixing member 103 disposed on the top of the driving member 102, a mounting member 104 disposed on the bottom of the fixing member 103, and a universal wheel 105 disposed on the bottom of the workbench 101; the drilling assembly 200 comprises a supporting frame 201 arranged on the top of the workbench 101, a lifting member 202 arranged on the top of the supporting frame 201, and an opening member 203 arranged on the bottom of the lifting member 202.
Wherein, the top of workstation 101 is provided with driving piece 102, and the outside of driving piece 102 is provided with mounting 103, and the bottom of mounting 103 is provided with mounting 104, and the bottom of workstation 101 is provided with universal wheel 105, and the top of workstation 101 fixedly connected with support frame 201 sets up lifting piece 202, and the bottom fixedly connected with trompil piece 203 of lifting piece 202.
In sum, can make this device nimble removal according to the scene through universal wheel 105, according to the length of turbine blade, start driving piece 102 makes it drive two mounting 103 removal, thereby adjust the distance between two mounting 103, be convenient for prevent the blade of different length, can be convenient for follow the blade of different thickness through adjusting mounting 103 and fix, can dismantle mounting 103 from driving piece 102 through mounting 104, the flexibility has been improved, then start lifting piece 202 and the trompil piece 203 at support frame 201 top, lifting piece 202 drives trompil piece 203 and descends, thereby carry out the drilling to the blade.
Example 2
Referring to fig. 1 to 4, this embodiment is based on the previous embodiment, which is a second embodiment of the present utility model.
Specifically, the driving member 102 includes a first motor 102a disposed on one side of the table 101, a coupling 102b disposed on one side of the first motor 102a, and a bi-directional screw 102c disposed on one side of the coupling 102b, the driving member 102 further includes a fixing block 102d disposed on the outer side of the bi-directional screw 102c, a connection block 102e disposed on one side of the fixing block 102d, and a connection groove 102f disposed on the outer side of the connection block 102e, the fixing member 103 includes a connection plate 103a disposed on the top of the fixing block 102d, a support plate 103b disposed on one side of the connection plate 103a, a threaded rod 103c disposed on the inner wall of the connection plate 103a, and a clamping plate 103d disposed on the outer side of the threaded rod 103c, the fixing member 103 further includes a knob 103e disposed on the top of the threaded rod 103c, a stopper 103f disposed on one side of the clamping plate 103d, and a connecting rod 103g disposed on the inner wall of the limiting block 103f, the mounting member 104 includes a clamping groove 104a disposed on the top of the fixed block 102d, a limiting rod 104b disposed on the inner wall of the fixed block 102d, a connecting piece 104c disposed on one side of the limiting rod 104b, a spring 104d disposed on one side of the connecting piece 104c, a clamping block 104e disposed at the bottom of the connecting plate 103a, and a limiting hole 104f disposed on the inner wall of the clamping block 104e, the lifting member 202 includes a cylinder 202a disposed on the top of the supporting frame 201, a connecting rod 202b disposed at the bottom of the cylinder 202a, a cross plate 202c disposed on the bottom of the connecting rod 202b, a slider 202d disposed on one side of the cross plate 202c, and a slide bar 202e disposed on the inner wall of the slider 202d, and the opening member 203 includes a second motor 203a disposed on the bottom of the cross plate 202c, and a drill rod 203b disposed on the bottom of the second motor 203 a.
In summary, a first motor 102a is arranged on one side of the workbench 101, a coupling 102b is arranged at the output end of the first motor 102a, a bidirectional screw 102c is arranged on one side of the coupling 102b, one end of the bidirectional screw 102c is rotationally connected with the inner wall of the workbench 101 through a bearing seat, the first motor 102a and the bidirectional screw 102c can be fixed through the coupling 102b, meanwhile, the first motor 102a is convenient to detach when the first motor 102a fails, a fixing block 102d is connected with the outer side of the bidirectional screw 102c in a threaded manner, a connecting block 102e is fixedly connected to one side of the fixing block 102d, a connecting groove 102f is slidingly connected with the outer side of the connecting block 102e, the first motor 102a is started to enable the coupling 102b to drive the bidirectional screw 102c to rotate, the fixing block 102d can drive the connecting block 102e to slide in the connecting groove 102f when the bidirectional screw 102c rotates, so that the fixing block 102d is stable when moving, the top of the fixing block 102d is clamped with a connecting plate 103a, one side of the connecting plate 103a is fixedly connected with a supporting plate 103b, the inner wall of the connecting plate 103a is in threaded connection with a threaded rod 103c, the outer side of the threaded rod 103c is in threaded connection with a clamping plate 103d, the top of the threaded rod 103c is fixedly connected with a knob 103e, the bottom of the threaded rod 103c is in rotary connection with the inner wall of the connecting plate 103a through a bearing seat, one side of the clamping plate 103d is fixedly connected with a limiting block 103f, the inner wall of the limiting block 103f is in sliding connection with a connecting rod 103g, the top of the connecting rod 103g is fixedly connected with the inner wall of the connecting plate 103a, blades are placed on the supporting plate 103b, then the knob 103e is rotated to enable the threaded rod 103c to rotate, the clamping plate 103d can drive the limiting block 103f to move when the limiting block 103f moves through the connecting rod 103g, therefore the blades are clamped and fixed, the top of the fixing block 102d is provided with a clamping groove 104a, and the inner wall of the fixing block 102d is in sliding connection with a limiting rod 104b, one end of the limiting rod 104b is fixedly connected with a connecting sheet 104c, one side of the connecting sheet 104c is fixedly connected with a spring 104d, the bottom of the connecting sheet 103a is fixedly connected with a clamping block 104e, a limiting hole 104f is formed in the inner wall of the clamping block 104e, the connecting sheet 104c is pulled to enable the limiting rod 104b to move and enable the spring 104d to stretch, then the connecting sheet 103a is moved to enable the clamping block 104e to be clamped into the clamping groove 104a, then the connecting sheet 104c is loosened, the limiting rod 104b can be automatically reset and inserted into the limiting hole 104f through resilience force of the spring 104d, so that the connecting sheet 103a is fixed, the connecting sheet 103a can be dismounted after reverse operation, the top of the supporting frame 201 is provided with a cylinder 202a, a piston rod of the cylinder 202a is fixedly connected with a connecting rod 202b, the bottom of the connecting rod 202b is fixedly connected with a transverse plate 202c, one side of the transverse plate 202c is fixedly connected with a sliding rod 202d, the inner wall of the sliding rod 202e is connected with one end of the sliding rod 202e, one end of the sliding rod 202e is fixedly connected with the inner wall of the supporting frame 201, the connecting rod 202b drives the transverse plate 202c to descend, the transverse plate 202c can be driven by the sliding rod 202c to descend, the transverse plate 202c can be driven by the sliding 202c through the sliding rod 202d sliding 202b to enable the sliding 202b to be driven by the sliding 202b to slide motor 202b to slide the sliding 202b when the transverse plate 202c descends, the transverse plate 202c can be driven by the sliding 203b to slide 203b through the sliding motor to be driven by the sliding 203b, when the sliding 203b is driven by the sliding 203b to be driven by the second sliding motor 203b can be driven to be driven by the second and opened and 203b and accordingly when the second lifting and 203b is driven to be driven to rotate and opened.
Example 3
Referring to fig. 5 to 6, a third embodiment of the present utility model provides a placement device, which solves the problem that the existing tapping device does not have the function of placing the blades, and is usually placed on the ground or the table surface, so that the placement device occupies the area of the table, and the blades are easy to be polluted.
Specifically, the storage assembly 300 includes a protective door 301 disposed on one side of the workbench 101, a mounting rail 302 disposed on an inner wall of the workbench 101, a pad 303 disposed on an inner wall of the mounting rail 302, and a limiting member 304 disposed on an inner wall of the mounting rail 302, where the limiting member 304 includes a plug rod 304a disposed on an inner wall of the mounting rail 302, and a receptacle 304b disposed on an inner wall of the pad 303.
Wherein, one side of workstation 101 is connected with guard gate 301 through the hinge rotation, and the inner wall fixedly connected with installation track 302 of workstation 101, the inner wall sliding connection of installation track 302 has backing plate 303, and the inner wall sliding connection of installation track 302 has inserted bar 304a, and jack 304b has been seted up to the inner wall of backing plate 303.
To sum up, the guard door 301 is opened to slide the pad 303 into the mounting rail 302, and then the insert rod 304a is inserted into the mounting rail 302 and is clamped with the insertion hole 304b through the mounting rail 302, so that the pad 303 is limited, and then the blade which is replaced or processed is placed on the pad 303.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. A turbine blade tapping mechanism, characterized in that: comprising the steps of (a) a step of,
the adjusting assembly (100) comprises a workbench (101), a driving piece (102) arranged at the top of the workbench (101), a fixing piece (103) arranged at the top of the driving piece (102), a mounting piece (104) arranged at the bottom of the fixing piece (103), and a universal wheel (105) arranged at the bottom of the workbench (101);
the drilling assembly (200) comprises a supporting frame (201) arranged at the top of the workbench (101), a lifting piece (202) arranged at the top of the supporting frame (201), and a hole opening piece (203) arranged at the bottom of the lifting piece (202).
2. The turbine blade opening mechanism of claim 1 wherein: the driving piece (102) comprises a first motor (102 a) arranged on one side of the workbench (101), a coupler (102 b) arranged on one side of the first motor (102 a), and a bidirectional screw (102 c) arranged on one side of the coupler (102 b).
3. The turbine blade opening mechanism of claim 2 wherein: the driving piece (102) further comprises a fixed block (102 d) arranged on the outer side of the bidirectional screw rod (102 c), a connecting block (102 e) arranged on one side of the fixed block (102 d), and a connecting groove (102 f) arranged on the outer side of the connecting block (102 e).
4. A turbine blade tapping mechanism according to claim 3, wherein: the fixing piece (103) comprises a connecting plate (103 a) arranged at the top of the fixing block (102 d), a supporting plate (103 b) arranged on one side of the connecting plate (103 a), a threaded rod (103 c) arranged on the inner wall of the connecting plate (103 a), and a clamping plate (103 d) arranged on the outer side of the threaded rod (103 c).
5. The turbine blade opening mechanism of claim 4 wherein: the fixing piece (103) further comprises a knob (103 e) arranged at the top of the threaded rod (103 c), a limiting block (103 f) arranged on one side of the clamping plate (103 d), and a connecting rod (103 g) arranged on the inner wall of the limiting block (103 f).
6. The turbine blade opening mechanism of claim 5 wherein: the mounting piece (104) comprises a clamping groove (104 a) formed in the top of the fixed block (102 d), a limiting rod (104 b) arranged on the inner wall of the fixed block (102 d), a connecting piece (104 c) arranged on one side of the limiting rod (104 b), a spring (104 d) arranged on one side of the connecting piece (104 c), a clamping block (104 e) arranged at the bottom of the connecting plate (103 a) and a limiting hole (104 f) arranged on the inner wall of the clamping block (104 e).
7. The turbine blade opening mechanism of claim 1 wherein: the lifting piece (202) comprises an air cylinder (202 a) arranged at the top of the supporting frame (201), a connecting rod (202 b) arranged at the bottom of the air cylinder (202 a), a transverse plate (202 c) arranged at the bottom of the connecting rod (202 b), a sliding block (202 d) arranged at one side of the transverse plate (202 c), and a sliding rod (202 e) arranged on the inner wall of the sliding block (202 d).
8. The turbine blade opening mechanism of claim 7 wherein: the opening member (203) comprises a second motor (203 a) arranged at the bottom of the transverse plate (202 c), and a drill rod (203 b) arranged at the bottom of the second motor (203 a).
9. A placement device, characterized in that: a turbine blade tapping mechanism comprising the turbine blade of any one of claims 1-8; the method comprises the steps of,
the storage assembly (300) comprises a protective door (301) arranged on one side of the workbench (101), a mounting rail (302) arranged on the inner wall of the workbench (101), a base plate (303) arranged on the inner wall of the mounting rail (302) and a limiting piece (304) arranged on the inner wall of the mounting rail (302).
10. A placement device as defined in claim 9, wherein: the limiting piece (304) comprises a plug rod (304 a) arranged on the inner wall of the mounting track (302) and a jack (304 b) arranged on the inner wall of the base plate (303).
CN202320690415.0U 2023-03-31 2023-03-31 Turbine blade trompil mechanism and placer Active CN219966496U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320690415.0U CN219966496U (en) 2023-03-31 2023-03-31 Turbine blade trompil mechanism and placer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320690415.0U CN219966496U (en) 2023-03-31 2023-03-31 Turbine blade trompil mechanism and placer

Publications (1)

Publication Number Publication Date
CN219966496U true CN219966496U (en) 2023-11-07

Family

ID=88587831

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320690415.0U Active CN219966496U (en) 2023-03-31 2023-03-31 Turbine blade trompil mechanism and placer

Country Status (1)

Country Link
CN (1) CN219966496U (en)

Similar Documents

Publication Publication Date Title
CN111558647B (en) Electrical cabinet metal plate stamping device and metal plate machining method
CN219966496U (en) Turbine blade trompil mechanism and placer
CN208788058U (en) A kind of clamping device for crossbeam punching two ends
CN205650871U (en) Aluminium door and window combination end surface milling machine for industrial plant
CN219561128U (en) Lifting type stamping die for electric cam
CN111702470A (en) Assembling equipment for bolt and nut
CN115939974A (en) High-voltage metering cabinet with adjustable mounting seat
CN212192063U (en) Comprehensive puncher for milling face of high foot of furnace end
CN220838016U (en) Perforating equipment is used in production of regulator cubicle door
CN220295721U (en) Manual pipe bending mechanism for heat conducting pipe of computer radiator
CN112018655A (en) Cable cutting device with adjustable power equipment production is used
CN219043571U (en) Spiral duct calendaring equipment
CN110076572A (en) A kind of multi-functional set composite of frame drilling-tapping and frame drilling-tapping method
CN220060138U (en) Fixed knot constructs and goes up guide inner oil retaining bucket guider
CN210139076U (en) Perforating device is used in guide rail manufacturing
CN216803992U (en) Marble drilling equipment for building
CN218136337U (en) Punching for manufacturing elevator guide rail
CN212495527U (en) Drilling equipment is used in protection casing processing
CN220679441U (en) Punching equipment for mold processing
CN218503385U (en) Section bar drilling equipment for door and window
CN219200802U (en) Light source testing device
CN220116895U (en) Automatic cloth cutting machine
CN209970073U (en) Automatic drilling and tapping device
CN219151658U (en) Drilling machine piece protector
CN216178735U (en) Drilling tool for machining exhaust bent pipe gasket

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant