CN220278330U - Multi-hole drilling mechanism for drilling of frequency converter casing - Google Patents

Multi-hole drilling mechanism for drilling of frequency converter casing Download PDF

Info

Publication number
CN220278330U
CN220278330U CN202321601156.6U CN202321601156U CN220278330U CN 220278330 U CN220278330 U CN 220278330U CN 202321601156 U CN202321601156 U CN 202321601156U CN 220278330 U CN220278330 U CN 220278330U
Authority
CN
China
Prior art keywords
fixedly connected
drilling
motor
frequency converter
mounting
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
CN202321601156.6U
Other languages
Chinese (zh)
Inventor
施华平
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.)
Huahe Heavy Industry Co ltd
Original Assignee
Huahe Heavy Industry Co ltd
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 Huahe Heavy Industry Co ltd filed Critical Huahe Heavy Industry Co ltd
Priority to CN202321601156.6U priority Critical patent/CN220278330U/en
Application granted granted Critical
Publication of CN220278330U publication Critical patent/CN220278330U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Drilling And Boring (AREA)

Abstract

The utility model belongs to the technical field of drilling, and relates to a multi-hole drilling mechanism for drilling a casing of a frequency converter. The utility model comprises a mounting seat, wherein two electric slipways are symmetrically and fixedly connected to the side wall at the upper side of the mounting seat, a first motor is fixedly connected to the two electric slipways, a first gear box is fixedly connected to the output end of the first motor, a plurality of horizontal drill rods are uniformly connected to the first gear box, the horizontal drill rods are annularly distributed on the first gear box, a first mounting frame is fixedly connected to the side wall at the upper side of the mounting seat, a hydraulic cylinder is fixedly connected to the first mounting frame, a second motor is fixedly connected to the output end of the hydraulic cylinder, and a second gear box is fixedly connected to the output end of the second motor. The utility model can simultaneously drill the multiple surfaces of the shell, and effectively improves the drilling efficiency of the drilling mechanism.

Description

Multi-hole drilling mechanism for drilling of frequency converter casing
Technical Field
The utility model belongs to the technical field of drilling, and relates to a multi-hole drilling mechanism for drilling a casing of a frequency converter.
Background
The frequency converter shell is an important component part of the frequency converter, can protect components inside the frequency converter, and is required to be provided with a plurality of holes which are required to be drilled by using a drilling mechanism.
When the existing multi-hole drilling mechanism for drilling the frequency converter shell is used for drilling holes, the holes are required to be drilled on different surfaces of the shell, but the existing drilling mechanism can only drill holes on one surface of the shell, the positions of the shell are required to be adjusted to drill holes on multiple surfaces, the operation is very complicated, and the drilling efficiency of the drilling mechanism is low.
Disclosure of Invention
The utility model aims to solve the problems and provide a multi-hole drilling mechanism for drilling a shell of a frequency converter.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a multi-hole drill mechanism for drilling of converter casing, includes the mount pad, the lateral wall symmetry fixedly connected with of mount pad upside is two electronic slip table is last equal fixedly connected with first motor, the output fixedly connected with first gear box of first motor, evenly connected with a plurality of horizontal drilling rod on the first gear box, a plurality of horizontal drilling rod is annular distribution on first gear box, the lateral wall fixedly connected with first mounting bracket of mount pad upside, fixedly connected with pneumatic cylinder on the first mounting bracket, the output fixedly connected with second motor of pneumatic cylinder, the output fixedly connected with second gear box of second motor, be connected with a plurality of slope drilling rods on the second gear box, the lateral wall fixedly connected with second mounting bracket of mount pad upside, fixedly connected with cylinder on the second mounting bracket, the output fixedly connected with third motor of cylinder, the output fixedly connected with perpendicular drilling rod of third motor, fixedly connected with work piece seat on the mount pad.
In the multi-hole drilling mechanism for drilling the casing of the frequency converter, the workpiece seat comprises a supporting plate fixedly connected to the upper side of the mounting seat, a plurality of chip removal holes are uniformly formed in the supporting plate, and a positioning plate is fixedly connected to the side wall of the upper side of the supporting plate.
In the multi-hole drilling mechanism for drilling the casing of the frequency converter, the electric sliding table comprises a guide rail plate fixedly connected to the upper side of the mounting seat, a driving motor is fixedly connected to the guide rail plate, the output end of the driving motor is fixedly connected with a reciprocating screw rod, a sliding table is sleeved on the rod wall of the reciprocating screw rod in a threaded mode, and the first motor is fixedly connected to the sliding table.
In the multi-hole drilling mechanism for drilling the casing of the frequency converter, the blanking hole is formed in the mounting seat, the blanking hole is located below the workpiece seat, a dirt collecting box is arranged below the mounting seat, and the dirt collecting box is located right below the blanking hole.
In the multi-hole drilling mechanism for drilling the casing of the frequency converter, the side wall of the lower side of the sliding table is symmetrically and fixedly connected with two guide plates, two guide grooves are symmetrically formed in the guide plate, and the two guide plates are respectively located in the two guide grooves.
In the multi-hole drill mechanism for drilling the frequency converter shell, the first mounting frame comprises a fixing plate fixedly connected to the upper side of the mounting seat, a fixing cylinder is fixedly connected to the side wall of the upper side of the fixing plate, a fixing column is fixedly sleeved in the fixing cylinder, a connecting rod is fixedly connected to the upper end of the fixing column, one end of the connecting rod is fixedly connected with a mounting pipe, and the hydraulic cylinder is fixedly connected to the inside of the mounting pipe.
In the multi-hole drilling mechanism for drilling the casing of the frequency converter, the four corners of the lower surface of the mounting seat are fixedly connected with the legs, and the lower ends of the four legs are fixedly connected with the legs.
In the multi-hole drill mechanism for drilling the casing of the frequency converter, the second mounting frame comprises a stand column fixedly connected to the upper side of the mounting seat, a sleeve is fixedly sleeved on the column wall of the stand column close to the upper end, a cross rod is fixedly connected to the outer wall of the sleeve, one end of the cross rod is fixedly connected with a mounting cylinder, and the air cylinder is fixedly connected to the inside of the mounting cylinder.
In the multi-hole drilling mechanism for drilling the frequency converter shell, the U-shaped handle is fixedly connected to the vertical outer wall of the dirt collecting box.
In the multi-hole drilling mechanism for drilling the casing of the frequency converter, two reinforcing plates are symmetrically and fixedly connected between the first motor and the side wall on the upper side of the sliding table.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, through the installation seat, the electric sliding tables, the first motor, the first gear box, the horizontal drilling rods, the first installation frame, the hydraulic cylinder, the second motor, the second gear box, the inclined drilling rods, the second installation frame, the cylinder, the third motor, the vertical drilling rods and the workpiece seat, when the drilling machine is used, the shell is placed on the workpiece seat, the two electric sliding tables are controlled to operate, the two electric sliding tables drive the two first motors to move, the horizontal drilling rods move towards the shell, the first motor is controlled to operate, the first motor drives the plurality of horizontal drilling rods to rotate to drill holes on two sides of the shell, the hydraulic cylinder is controlled to operate, the hydraulic cylinder drives the second motor to move, the inclined drilling rods are close to the shell, the second motor drives the plurality of inclined drilling rods to rotate to drill holes on the shell, the cylinder drives the third motor to move, the vertical drilling rods are driven to rotate and move downwards, and the vertical drilling rods can drill holes on one side of the shell, so that multiple sides of the shell can be drilled simultaneously, and the drilling efficiency of the drilling mechanism is effectively improved.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
Fig. 2 is a schematic view of another aspect of the present utility model.
Fig. 3 is a front view of the present utility model.
FIG. 4 is a side view of the present utility model
In the figure: 1. a mounting base; 2. an electric sliding table; 3. a first motor; 4. a first gear box; 5. a horizontal drill rod; 6. a first mounting frame; 7. a hydraulic cylinder; 8. a second motor; 9. a second gear box; 10. tilting the drill rod; 11. a second mounting frame; 12. a cylinder; 13. a third motor; 14. a vertical drill rod; 15. a workpiece seat; 16. a supporting plate; 17. chip removal holes; 18. a positioning plate; 19. a guide rail plate; 20. a driving motor; 21. a reciprocating screw rod; 22. a sliding table; 23. a blanking hole; 24. a dirt collection box; 25. a guide plate; 26. a guide groove; 27. a fixing plate; 28. a fixed cylinder; 29. fixing the column; 30. a connecting rod; 31. installing a pipe; 32. a leg; 33. a foot stand; 34. a column; 35. a sleeve; 36. a cross bar; 37. a mounting cylinder; 38. a U-shaped grip; 39. and a reinforcing plate.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a multi-hole drill mechanism for drilling of a casing of a frequency converter comprises a mounting seat 1, two electric slipways 2 are symmetrically and fixedly connected to the side wall of the upper side of the mounting seat 1, two electric slipways 2 are fixedly connected with a first motor 3, the output end of the first motor 3 is fixedly connected with a first gear box 4, a plurality of horizontal drill rods 5 are uniformly connected to the first gear box 4, the horizontal drill rods 5 are annularly distributed on the first gear box 4, the side wall of the upper side of the mounting seat 1 is fixedly connected with a first mounting frame 6, a hydraulic cylinder 7 is fixedly connected to the first mounting frame 6, the output end of the hydraulic cylinder 7 is fixedly connected with a second motor 8, the output end of the second motor 8 is fixedly connected with a second gear box 9, a plurality of inclined drill rods 10 are connected to the second mounting frame 11, a cylinder 12 is fixedly connected to the second mounting frame 11, the output end of the cylinder 12 is fixedly connected with a third motor 13, and the output end of the third mounting frame 13 is fixedly connected with a workpiece 15.
In the above embodiment, when in use, the shell is placed on the workpiece seat 15, two electric sliding tables 2 are controlled to operate, the two electric sliding tables 2 drive two first motors 3 to move, so that the horizontal drill rods 5 move towards the shell, the first motors 3 are controlled to operate, the first motors 3 drive the plurality of horizontal drill rods 5 to rotate to drill holes on two sides of the shell, the hydraulic cylinders 7 are controlled to operate, the hydraulic cylinders 7 drive the second motors 8 to move, the inclined drill rods 10 are close to the shell, the second motors 8 drive the plurality of inclined drill rods 10 to rotate to drill holes on the shell, the air cylinders 12 drive the third motors 13 to move, the third motors 13 drive the vertical drill rods 14 to rotate and move downwards, the vertical drill rods 14 can drill holes on one side of the shell, and therefore multiple sides of the shell can be drilled simultaneously, and the drilling efficiency of the drilling mechanism is effectively improved.
The workpiece seat 15 comprises a supporting plate 16 fixedly connected to the upper side of the mounting seat 1, a plurality of chip removal holes 17 are uniformly formed in the supporting plate 16, and a positioning plate 18 is fixedly connected to the side wall of the upper side of the supporting plate 16.
In this embodiment, in use, the workpiece is placed on the pallet 16, and the positioning plate 18 provided can position the housing, so that the housing can be accurately placed.
The electric sliding table 2 comprises a guide rail plate 19 fixedly connected to the upper side of the mounting seat 1, a driving motor 20 is fixedly connected to the guide rail plate 19, a reciprocating screw rod 21 is fixedly connected to the output end of the driving motor 20, a sliding table 22 is sleeved on the rod wall of the reciprocating screw rod 21 in a threaded mode, and the first motor 3 is fixedly connected to the sliding table 22.
In the above embodiment, the driving motor 20 can drive the reciprocating screw 21 to rotate, and the reciprocating screw 21 can drive the sliding table 22 to move, so that the first motor 3 can be driven to move.
The blanking hole 23 has been seted up on the mount pad 1, blanking hole 23 is located the below of work piece seat 15, the below of mount pad 1 is provided with dirt collection box 24, dirt collection box 24 is located blanking hole 23 under.
In this embodiment, the dirt collection box 24 is provided to collect drill cuttings, thereby improving the convenience of cuttings cleaning.
Two guide plates 25 are symmetrically and fixedly connected to the side wall of the lower side of the sliding table 22, two guide grooves 26 are symmetrically formed in the guide rail plate 19, and the two guide plates 25 are respectively located in the two guide grooves 26.
In the above embodiment, the stability of the movement of the slide table 22 can be improved by the guide plate 25 and the guide groove 26 cooperating with each other.
The first mounting frame 6 comprises a fixed plate 27 fixedly connected to the upper side of the mounting seat 1, a fixed cylinder 28 is fixedly connected to the side wall of the upper side of the fixed plate 27, a fixed column 29 is fixedly sleeved in the fixed cylinder 28, a connecting rod 30 is fixedly connected to the upper end of the fixed column 29, one end of the connecting rod 30 is fixedly connected with a mounting pipe 31, and the hydraulic cylinder 7 is fixedly connected to the inside of the mounting pipe 31.
Four corners of the lower surface of the mounting seat 1 are fixedly connected with legs 32, four lower ends of the legs 32 are fixedly connected with feet 33, and the stability of mechanism placement can be improved through the legs 32 and the feet 33.
The second mounting frame 11 comprises a stand column 34 fixedly connected to the upper side of the mounting seat 1, a sleeve 35 is fixedly sleeved on the column wall of the stand column 34 close to the upper end, a cross rod 36 is fixedly connected to the outer wall of the sleeve 35, one end of the cross rod 36 is fixedly connected with a mounting cylinder 37, and the air cylinder 12 is fixedly connected to the inside of the mounting cylinder 37.
The vertical outer wall of the dirt collecting box 24 is fixedly connected with a U-shaped handle 38, and the U-shaped handle 38 can improve the convenience of operation of the dirt collecting box 24.
Two reinforcing plates 39 are symmetrically and fixedly connected between the first motor 3 and the side wall on the upper side of the sliding table 22, and the reinforcing plates 39 can improve the connection stability of the first motor 3 and the sliding table 22.
The working principle of the utility model is as follows:
when the drilling machine is used, the shell is placed on the workpiece seat 15, the two electric sliding tables 2 are controlled to operate, the two electric sliding tables 2 drive the two first motors 3 to move, the horizontal drill rods 5 are enabled to move towards the shell, the first motors 3 are controlled to operate, the first motors 3 drive the plurality of horizontal drill rods 5 to rotate to drill holes on two sides of the shell, the hydraulic cylinders 7 are controlled to operate, the hydraulic cylinders 7 drive the second motors 8 to move, the inclined drill rods 10 are enabled to be close to the shell, the second motors 8 drive the plurality of inclined drill rods 10 to rotate to drill holes on the shell, the air cylinders 12 drive the third motors 13 to move, the third motors 13 drive the vertical drill rods 14 to rotate and move downwards, the vertical drill rods 14 can drill holes on one side of the shell, and therefore multiple sides of the shell can be drilled simultaneously, and the drilling efficiency of a drilling mechanism is effectively improved.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model.
Although 1, mount is used more herein; 2. an electric sliding table; 3. a first motor; 4. a first gear box; 5. a horizontal drill rod; 6. a first mounting frame; 7. a hydraulic cylinder; 8. a second motor; 9. a second gear box; 10. tilting the drill rod; 11. a second mounting frame; 12. a cylinder; 13. a third motor; 14. a vertical drill rod; 15. a workpiece seat; 16. a supporting plate; 17. chip removal holes; 18. a positioning plate; 19. a guide rail plate; 20. a driving motor; 21. a reciprocating screw rod; 22. a sliding table; 23. a blanking hole; 24. a dirt collection box; 25. a guide plate; 26. a guide groove; 27. a fixing plate; 28. a fixed cylinder; 29. fixing the column; 30. a connecting rod; 31. installing a pipe; 32. a leg; 33. a foot stand; 34. a column; 35. a sleeve; 36. a cross bar; 37. a mounting cylinder; 38. a U-shaped grip; 39. reinforcing plates, etc., but do not exclude the possibility of using other terms. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.

Claims (10)

1. The utility model provides a multi-hole drill mechanism for drilling of frequency converter casing, includes mount pad (1), its characterized in that, the lateral wall symmetry fixedly connected with two electronic slip tables (2) of mount pad (1) upside, two equal fixedly connected with first motor (3) on electronic slip tables (2), the output fixedly connected with first gear box (4) of first motor (3), evenly connected with a plurality of horizontal drilling rod (5) on first gear box (4), a plurality of horizontal drilling rod (5) are the annular and distribute on first gear box (4), the lateral wall fixedly connected with first mounting bracket (6) of mount pad (1) upside, fixedly connected with pneumatic cylinder (7) on first mounting bracket (6), the output fixedly connected with second motor (8) of pneumatic cylinder (7), the output fixedly connected with second gear box (9) of second motor (8), be connected with a plurality of slope drilling rod (10) on second gear box (9), lateral wall fixedly connected with second motor (11) on mount pad (1) upside, second mounting bracket (12) fixedly connected with third pneumatic cylinder (13) output fixedly connected with third pneumatic cylinder (13), the mounting seat (1) is fixedly connected with a workpiece seat (15).
2. The multi-hole drilling mechanism for the casing drilling of the frequency converter according to claim 1, wherein the workpiece seat (15) comprises a supporting plate (16) fixedly connected to the upper side of the mounting seat (1), a plurality of chip removal holes (17) are uniformly formed in the supporting plate (16), and a positioning plate (18) is fixedly connected to the side wall of the upper side of the supporting plate (16).
3. The multi-hole drilling mechanism for the drilling of the frequency converter shell according to claim 2, wherein the electric sliding table (2) comprises a guide rail plate (19) fixedly connected to the upper side of the mounting seat (1), a driving motor (20) is fixedly connected to the guide rail plate (19), a reciprocating screw rod (21) is fixedly connected to the output end of the driving motor (20), a sliding table (22) is sleeved on the rod wall of the reciprocating screw rod (21), and the first motor (3) is fixedly connected to the sliding table (22).
4. A multi-hole drill mechanism for drilling a frequency converter housing according to claim 3, characterized in that the mounting base (1) is provided with a blanking hole (23), the blanking hole (23) is located below the workpiece base (15), a dirt collecting box (24) is arranged below the mounting base (1), and the dirt collecting box (24) is located right below the blanking hole (23).
5. The multi-hole drilling mechanism for the casing drilling of the frequency converter according to claim 4, wherein two guide plates (25) are symmetrically and fixedly connected to the side wall of the lower side of the sliding table (22), two guide grooves (26) are symmetrically formed in the guide rail plate (19), and the two guide plates (25) are respectively located in the two guide grooves (26).
6. The multi-hole drilling mechanism for drilling a casing of a frequency converter according to claim 5, wherein the first mounting frame (6) comprises a fixing plate (27) fixedly connected to the upper side of the mounting seat (1), a fixing cylinder (28) is fixedly connected to the side wall of the upper side of the fixing plate (27), a fixing column (29) is fixedly sleeved in the fixing cylinder (28), a connecting rod (30) is fixedly connected to the upper end of the fixing column (29), a mounting tube (31) is fixedly connected to one end of the connecting rod (30), and the hydraulic cylinder (7) is fixedly connected to the mounting tube (31).
7. The multi-hole drilling mechanism for the casing drilling of the frequency converter according to claim 6, wherein four corners of the lower surface of the mounting seat (1) are fixedly connected with legs (32), and the lower ends of the four legs (32) are fixedly connected with feet (33).
8. The multi-hole drilling mechanism for the casing drilling of the frequency converter according to claim 7, wherein the second mounting frame (11) comprises a stand column (34) fixedly connected to the upper side of the mounting seat (1), a sleeve (35) is fixedly sleeved on the column wall of the stand column (34) close to the upper end, a cross rod (36) is fixedly connected to the outer wall of the sleeve (35), a mounting barrel (37) is fixedly connected to one end of the cross rod (36), and the air cylinder (12) is fixedly connected to the inside of the mounting barrel (37).
9. Multi-hole drilling mechanism for drilling a frequency converter housing according to claim 8, characterized in that the vertical outer wall of the dirt collection box (24) is fixedly connected with a U-shaped grip (38).
10. Multi-hole drilling mechanism for drilling a casing of a frequency converter according to claim 9, characterized in that two reinforcing plates (39) are symmetrically and fixedly connected between the first motor (3) and the side wall of the upper side of the sliding table (22).
CN202321601156.6U 2023-06-21 2023-06-21 Multi-hole drilling mechanism for drilling of frequency converter casing Active CN220278330U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321601156.6U CN220278330U (en) 2023-06-21 2023-06-21 Multi-hole drilling mechanism for drilling of frequency converter casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321601156.6U CN220278330U (en) 2023-06-21 2023-06-21 Multi-hole drilling mechanism for drilling of frequency converter casing

Publications (1)

Publication Number Publication Date
CN220278330U true CN220278330U (en) 2024-01-02

Family

ID=89335167

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321601156.6U Active CN220278330U (en) 2023-06-21 2023-06-21 Multi-hole drilling mechanism for drilling of frequency converter casing

Country Status (1)

Country Link
CN (1) CN220278330U (en)

Similar Documents

Publication Publication Date Title
CN211614374U (en) High accuracy multi-spindle drilling machine convenient to work piece is fixed
CN220278330U (en) Multi-hole drilling mechanism for drilling of frequency converter casing
CN210046047U (en) Drilling equipment is used in aluminum alloy template processing
CN218135171U (en) Positioning fixture for processing printed circuit board
CN215199702U (en) Semiconductor processing platform
CN215149884U (en) Drilling equipment is used in furniture production
CN109128871A (en) A kind of desk-top multi spindle drilling machine auxiliary clamp
CN212665881U (en) Fixing device for machine-building
CN210758224U (en) Woodwork punching device
CN210648876U (en) Supporting device for tapping of large double-head screw
CN210081491U (en) Polishing device for caterpillar link
CN220636356U (en) Drilling equipment of metal frame for solar photovoltaic processing
CN220574804U (en) Drilling device convenient to fix and used for machining motor shell
CN219925264U (en) Steel construction location drilling equipment
CN219924629U (en) Efficient drilling device for sheet metal machining
CN214418500U (en) Grinding device for roughness of shaft hole of tool rest
CN214685226U (en) Part machining table
CN219987895U (en) Wood drilling machine
CN110434941A (en) A kind of wood plank drilling equipment convenient for control punching spacing
CN216398074U (en) Drilling equipment is used in production of mechanical equipment accessory
CN216181724U (en) Drilling machine for stone processing
CN219274525U (en) Radial drilling machine with limiting function
CN219747147U (en) Fixing device for punching aerospace material
CN210967099U (en) Elastic coupling drilling device
CN216029423U (en) Numerical control drilling equipment for steel structure machining

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant