CN211917315U - Building construction perforating device - Google Patents

Building construction perforating device Download PDF

Info

Publication number
CN211917315U
CN211917315U CN202020400042.5U CN202020400042U CN211917315U CN 211917315 U CN211917315 U CN 211917315U CN 202020400042 U CN202020400042 U CN 202020400042U CN 211917315 U CN211917315 U CN 211917315U
Authority
CN
China
Prior art keywords
clamping
base
clamping plate
plate
punching
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.)
Expired - Fee Related
Application number
CN202020400042.5U
Other languages
Chinese (zh)
Inventor
李志生
张云宏
解群
郝庆芳
李渊龙
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.)
SHANDONG XINGHUA CONSTRUCTION GROUP CO Ltd
Original Assignee
SHANDONG XINGHUA CONSTRUCTION GROUP 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 SHANDONG XINGHUA CONSTRUCTION GROUP CO Ltd filed Critical SHANDONG XINGHUA CONSTRUCTION GROUP CO Ltd
Priority to CN202020400042.5U priority Critical patent/CN211917315U/en
Application granted granted Critical
Publication of CN211917315U publication Critical patent/CN211917315U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The utility model discloses a perforating device for building construction, which comprises a perforating mechanism and a clamping mechanism; the clamping mechanism comprises a clamping base, a fixed clamping part and a movable clamping part; the fixed clamping part comprises a lower fixed clamping plate, an upper fixed clamping plate, a height adjusting stud and a first guide column; one end of the upper fixing clamping plate is provided with a first threaded hole in threaded fit with the height adjusting stud, and the other end of the upper fixing clamping plate is provided with a first guide hole in fit with the first guide post; the movable clamping part comprises a lower movable clamping plate, an upper movable clamping plate and a second guide column; the front end and the rear end of the upper movable clamping plate are provided with second guide holes matched with corresponding second guide columns; and a thickness adjusting mechanism is arranged on the clamping base. The utility model discloses well chucking mechanism can fix the chucking operation to the plate-shaped building material of co-altitude, different thickness, no longer needs extra constructor to fix and right, has saved labour and working time, has improved efficiency.

Description

Building construction perforating device
Technical Field
The utility model belongs to the technical field of the construction, concretely relates to building construction perforating device.
Background
The building materials are a general term for materials used in civil engineering and construction work. At present, in the building work progress, when needs punch to the building material of plate structure, mostly need a plurality of constructors with building material fixed rightly, then other personnel hand-held electric drill punch it. However, the punching method of fixing and righting by additional constructors consumes much labor and labor time, and reduces the construction efficiency.
Therefore, there is a need to design a perforating device for building construction, which can fix and centralize building materials to facilitate perforation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a building construction perforating device for overcoming the not enough of above-mentioned prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a perforating device for building construction comprises a perforating mechanism and a clamping mechanism for fixing a plate-shaped building material;
the clamping mechanism comprises a clamping base, a fixed clamping part is arranged at the left end of the clamping base, and a movable clamping part is arranged at the right end of the clamping base;
the fixed clamping part comprises a lower fixed clamping plate and an upper fixed clamping plate; the lower fixing clamping plate is fixedly arranged at the top of the clamping base, one end of the lower fixing clamping plate is upwards provided with a height adjusting stud, the bottom of the height adjusting stud is rotatably connected with the lower fixing clamping plate, and the other end of the lower fixing clamping plate is upwards provided with a first guide column; one end of the upper fixing clamping plate is provided with a first threaded hole in threaded fit with the height adjusting stud, and the other end of the upper fixing clamping plate is provided with a first guide hole in fit with the first guide post; a plurality of third guide posts are arranged rightwards at the right end of the upper fixed clamping plate;
the movable clamping part comprises a lower movable clamping plate and an upper movable clamping plate; the bottom of the lower movable clamping plate is in sliding connection with the clamping base in the left-right direction, and the front end and the rear end of the lower movable clamping plate are both provided with second guide posts upwards; the front end and the rear end of the upper movable clamping plate are provided with second guide holes matched with corresponding second guide columns; the right end of the upper movable clamping plate is rightwards provided with a plurality of guide sleeves matched with the third guide columns;
and the clamping base is provided with a thickness adjusting mechanism for controlling the movable clamping part to slide left and right.
Preferably, the top surface of the clamping base is provided with a plurality of first sliding chutes extending along the left and right directions;
the bottom of the lower movable clamping plate is provided with a plurality of first sliding blocks which are in sliding fit with the corresponding first sliding grooves.
Preferably, the thickness adjusting mechanism comprises a thickness adjusting cylinder, and the thickness adjusting cylinder is arranged in the middle of the right end of the clamping base through a cylinder seat; and a piston rod of the thickness adjusting cylinder is fixedly connected with the right end of the lower movable clamping plate leftwards.
Preferably, the punching mechanism comprises a punching base, and the right end of the punching base is detachably connected with the left end of the clamping base;
the upper part of the punching base is provided with a first supporting plate, and the first supporting plate is connected with the top surface of the punching base in a sliding manner in the front-back direction; a plurality of lifting cylinders are arranged at the upper part of the first supporting plate, and piston rods of the lifting cylinders are upwards fixedly connected with the second supporting plate;
a punching cylinder is arranged at the upper part of the second supporting plate, a piston rod of the punching cylinder is fixedly connected with one end of a punching motor rightwards, and a rotating shaft of the punching motor is connected with a drill rightwards;
and the punching base is provided with an adjusting mechanism for controlling the first supporting plate to slide back and forth.
Preferably, a clamping block is arranged at the right end of the punching base; the clamping base is provided with a clamping groove matched with the clamping block at the left end; the clamping block is connected with the clamping groove through a bolt.
Preferably, the top surface of the punching base is provided with a plurality of second sliding chutes extending along the front and back directions;
and a plurality of second sliding blocks which are in sliding fit with the corresponding second sliding grooves are arranged at the bottom of the first supporting plate.
Preferably, the adjusting mechanism is an adjusting screw, and the central axis of the adjusting screw extends along the front-back direction of the punching base;
the first supporting plate is provided with adjusting holes penetrating through the front end and the rear end; the adjusting screw is in threaded fit with the adjusting hole;
the front end of the punching base is provided with a mounting seat;
the front end of the adjusting screw is rotatably connected with the mounting seat.
Preferably, a third sliding groove extending leftwards is formed in the right end of the second supporting plate, and a motor sliding block in sliding fit with the third sliding groove is arranged at the bottom of the punching motor.
The utility model has the advantages that:
(1) the utility model discloses set up chucking mechanism among the building construction perforating device, under the screw-thread fit of the first screw hole on altitude mixture control double-screw bolt and the last fixed chucking board, the direction spacing of the first guiding hole on first guide post and the last fixed chucking board, the connection cooperation of the third guide post on the last fixed chucking board and the uide bushing on the last movable chucking board, the vertical height adjustment of fixed chucking board, last movable chucking board just can be realized to the rotatory altitude mixture control double-screw bolt, consequently can be applicable to the fixed chucking operation of building material of different heights; meanwhile, the movable clamping part can slide left and right, so that building materials with different thicknesses can be clamped and centered; therefore, chucking mechanism among this application perforating device can fix the chucking operation to the plate-like building material of co-altitude not, different thickness, no longer needs extra constructor to fix and right, has saved labour and labour time, has improved efficiency.
(2) The utility model discloses adjust the screw among the building construction perforating device and adjust the front and back position of first backup pad, drill bit, the lift cylinder adjusts the upper and lower position of second backup pad, drill bit, and the position of drill bit can be adjusted to this application promptly, consequently can punch to the different positions of building material department.
(3) The utility model discloses the base of punching in the building construction perforating device can be dismantled through the bolt with the chucking base and be connected, this kind of setting of this application, when punching to the building that does not need fixed rightting such as wall, just can dismantle the use of getting off with the structure of punching to this application perforating device's application scope has been increased.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic perspective view of the structure of the perforating device for building construction of the present invention;
FIG. 2 is a schematic view of the assembly of the hole punching mechanism and the clamping mechanism of the present invention;
fig. 3 is a schematic structural diagram of the first support plate and the second support plate in the present invention;
wherein,
11-a punching base, 111-a fixture block, 112-a mounting seat and 113-a second sliding groove;
12-a first support plate, 121-a second slider;
13-lifting cylinder, 14-second supporting plate, 141-third chute, 15-punching cylinder, 16-punching motor, 161-motor slide block, 17-drill bit and 18-adjusting screw rod;
21-clamping base, 211-first sliding groove, 212-clamping groove;
22-fixed clamping part, 221-lower fixed clamping plate, 222-upper fixed clamping plate, 223-height adjusting stud, 224-first guide column, 225-third guide column;
23-a movable clamping part, 231-a lower movable clamping plate, 232-an upper movable clamping plate, 233-a second guide column, 234-a guide sleeve and 235-a first sliding block;
24-thickness adjusting mechanism, 241-thickness adjusting cylinder and 242-cylinder seat.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "upper", "lower", "bottom", "top", "front", "back", "left", "right", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and only for convenience of description, the relation words determined by the structural relationship of each component or element of the present invention are not specifically referred to any component or element of the present invention, and the limitation of the present invention cannot be understood.
In the present invention, terms such as "connected" and "connected" should be understood in a broad sense, and may be either fixedly connected or integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, a perforating device for building construction comprises a perforating mechanism and a clamping mechanism for fixing a plate-shaped building material;
the clamping mechanism comprises a clamping base 21, a fixed clamping part 22 is arranged at the left end of the clamping base 21, and a movable clamping part 23 is arranged at the right end of the clamping base 21;
the fixing and clamping part 22 comprises a lower fixing and clamping plate 221 and an upper fixing and clamping plate 222; the lower fixing clamping plate 221 is fixedly arranged at the top of the clamping base 21, one end of the lower fixing clamping plate 221 is upwards provided with a height adjusting stud 223, the bottom of the height adjusting stud 223 is rotatably connected with the lower fixing clamping plate 221, and the other end of the lower fixing clamping plate 221 is upwards provided with a first guide column 224; one end of the upper fixing clamping plate 222 is provided with a first threaded hole in threaded fit with the height adjusting stud 223, and the other end of the upper fixing clamping plate 222 is provided with a first guide hole in threaded fit with the first guide column 224; a plurality of third guide posts 225 are arranged at the right end of the upper fixed clamping plate 222;
the movable clamping part 23 comprises a lower movable clamping plate 231 and an upper movable clamping plate 232; the bottom of the lower movable clamping plate 231 is in sliding connection with the clamping base 21 in the left-right direction, and the front end and the rear end of the lower movable clamping plate 231 are both provided with second guide posts 233 upwards; the front end and the rear end of the upper movable clamping plate 232 are provided with second guide holes matched with the corresponding second guide columns 233; a plurality of guide sleeves 234 matched with the third guide columns 225 are arranged at the right end of the upper movable clamping plate 232;
the clamping base 21 is provided with a thickness adjusting mechanism 24 for controlling the movable clamping part 23 to slide left and right.
Under the guiding limit of the height adjusting stud 223 and the first threaded hole on the upper fixing clamping plate 222 and the guiding limit of the first guiding column 224 and the first guiding hole on the upper fixing clamping plate 222, when the height adjusting stud 223 is rotated, the upper and lower adjustment of the upper fixing clamping plate 222 can be realized; meanwhile, due to the connection and matching relationship of the third guide column 225 on the upper fixed clamping plate 222 and the guide sleeve 234 on the upper movable clamping plate 232, the upper movable clamping plate 232 moves up and down along with the upper fixed clamping plate 222; therefore, the vertical height adjustment of the upper fixed clamping plate 222 and the upper movable clamping plate 232 can be realized by rotating the height adjusting stud 223, so that the vertical height adjusting device can be suitable for the fixing and clamping operation of building materials with different heights;
simultaneously activity clamping part 23 can carry out the horizontal slip in this application, and then can press from both sides tightly rightly to the building material of different thickness.
Therefore, chucking mechanism among this application perforating device can fix the chucking operation to the plate-like building material of co-altitude not, different thickness, no longer needs extra constructor to right, has saved labour and labour time, has improved efficiency.
Preferably, the top surface of the clamping base 21 is provided with a plurality of first sliding grooves 211 extending along the left-right direction;
the bottom of the lower movable clamping plate 231 is provided with a plurality of first sliding blocks 235 which are in sliding fit with the corresponding first sliding grooves 211.
Preferably, the thickness adjusting mechanism 24 includes a thickness adjusting cylinder 241, and the thickness adjusting cylinder 241 is arranged in the middle of the right end of the chucking base 21 through a cylinder seat 242; the piston rod of the thickness adjusting cylinder 241 is fixedly connected to the right end of the lower movable clamping plate 231 towards the left.
Preferably, the punching mechanism comprises a punching base 11, and the right end of the punching base 11 is detachably connected with the left end of the clamping base 21;
a first supporting plate 12 is arranged at the upper part of the punching base 11, and the first supporting plate 12 is connected with the top surface of the punching base 11 in a sliding manner in the front-back direction; as shown in fig. 3, a plurality of lifting cylinders 13 are arranged on the upper portion of the first support plate 12, and piston rods of the lifting cylinders 13 are fixedly connected with the second support plate 14 upwards;
a punching cylinder 15 is arranged at the upper part of the second supporting plate 14, a piston rod of the punching cylinder 15 is fixedly connected with one end of a punching motor 16 rightwards, and a rotating shaft of the punching motor 16 is connected with a drill bit 17 rightwards;
and the punching base 11 is provided with an adjusting mechanism for controlling the front and back sliding of the first supporting plate 12.
The adjusting mechanism controls the first supporting plate 12 to move back and forth, so that the drill 17 can be aligned to different positions in the front and back directions of the building material to be punched; the lifting cylinder 13 controls the second supporting plate 14 to move up and down, so that the drill 17 can be aligned to different positions in the height direction of the building material to be punched; therefore, the position of the drill 17 can be adjusted, and the building material can be punched at different positions.
Preferably, as shown in fig. 2, a latch 111 is disposed at the right end of the punching base 11; a clamping groove 212 matched with the clamping block 111 is arranged at the left end of the clamping base 21; the clamping block 111 and the clamping groove 212 are connected through bolts.
Consequently, this application base 11 and chucking base 21 punch can dismantle through the bolt and be connected, and this kind of setting of this application can dismantle the exclusive use of getting off with the mechanism of punching, for example when punching to the building that need not fix rightting such as wall, just can dismantle the use of getting off with the structure of punching.
Preferably, a plurality of second sliding chutes 113 extending in the front-rear direction are arranged on the top surface of the punching base 11;
the bottom of the first supporting plate 12 is provided with a plurality of second sliding blocks 121 which are in sliding fit with the corresponding second sliding grooves 113.
Preferably, the adjusting mechanism is an adjusting screw 18, and the central axis of the adjusting screw 18 extends along the front-back direction of the punching base 11;
the first supporting plate 12 is provided with adjusting holes penetrating through the front end and the rear end; the adjusting screw 18 is in threaded fit with the adjusting hole;
the front end of the punching base 11 is provided with a mounting seat 112;
the front end of the adjusting screw 18 is rotatably connected to the mounting base 112.
Under the sliding limit fit of the second sliding chute 113 and the second sliding block 121 and the thread fit of the adjusting hole on the first supporting plate 12 and the adjusting screw 18, when the adjusting screw 18 is rotated, the first supporting plate 12 will move back and forth.
Preferably, a third sliding groove 141 extending leftward is formed at a right end of the second support plate 14, and a motor slider 161 slidably engaged with the third sliding groove 141 is disposed at a bottom of the punching motor 16.
The sliding fit of the third slide slot 141 and the motor slider 161 provides a supporting and guiding function for the punch motor 16.
A building construction perforating device, its specific implementation is as follows:
placing the building material to be perforated between the fixed clamping part 22 and the movable clamping part 23; rotating the height adjusting stud 223 to adjust the heights of the upper fixed clamping plate 222 and the upper movable clamping plate 232 so as to be suitable for the height of the building material to be punched; the thickness adjusting cylinder 241 is started to clamp the building material to be punched between the fixed clamping part 22 and the movable clamping part 23, so that the clamping and righting work of the building material to be punched is completed.
The front and back positions of the first supporting plate 12 and the drill 17 are adjusted by rotating the adjusting screw 18; starting the lifting cylinder 13 to adjust the up-and-down positions of the second supporting plate 14 and the drill bit 17; thereby completing the alignment of the drill 17 with the position to be drilled.
The punching cylinder 15 is started to push the drill bit 17, and the drill bit 17 is driven to rotate by the punching motor 16, so that the punching operation on the building material is realized.
When punching is carried out on a building which does not need to be fixed and righted, such as a wall surface, the punching structure can be detached for independent use.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the present invention, and those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive labor are still within the scope of the present invention.

Claims (8)

1. A perforating device for building construction is characterized by comprising a perforating mechanism and a clamping mechanism for fixing a plate-shaped building material;
the clamping mechanism comprises a clamping base, a fixed clamping part is arranged at the left end of the clamping base, and a movable clamping part is arranged at the right end of the clamping base;
the fixed clamping part comprises a lower fixed clamping plate and an upper fixed clamping plate; the lower fixing clamping plate is fixedly arranged at the top of the clamping base, one end of the lower fixing clamping plate is upwards provided with a height adjusting stud, the bottom of the height adjusting stud is rotatably connected with the lower fixing clamping plate, and the other end of the lower fixing clamping plate is upwards provided with a first guide column; one end of the upper fixing clamping plate is provided with a first threaded hole in threaded fit with the height adjusting stud, and the other end of the upper fixing clamping plate is provided with a first guide hole in fit with the first guide post; a plurality of third guide posts are arranged rightwards at the right end of the upper fixed clamping plate;
the movable clamping part comprises a lower movable clamping plate and an upper movable clamping plate; the bottom of the lower movable clamping plate is in sliding connection with the clamping base in the left-right direction, and the front end and the rear end of the lower movable clamping plate are both provided with second guide posts upwards; the front end and the rear end of the upper movable clamping plate are provided with second guide holes matched with corresponding second guide columns; the right end of the upper movable clamping plate is rightwards provided with a plurality of guide sleeves matched with the third guide columns;
and the clamping base is provided with a thickness adjusting mechanism for controlling the movable clamping part to slide left and right.
2. The perforating device for building construction as claimed in claim 1, wherein the top surface of the clamping base is provided with a plurality of first sliding grooves extending in the left-right direction;
the bottom of the lower movable clamping plate is provided with a plurality of first sliding blocks which are in sliding fit with the corresponding first sliding grooves.
3. The perforating device for building construction as claimed in claim 1, wherein the thickness adjusting mechanism comprises a thickness adjusting cylinder, and the thickness adjusting cylinder is arranged at the middle part of the right end of the clamping base through a cylinder seat; and a piston rod of the thickness adjusting cylinder is fixedly connected with the right end of the lower movable clamping plate leftwards.
4. The perforating device for building construction as claimed in claim 1, wherein the perforating mechanism comprises a perforating base, and the right end of the perforating base is detachably connected with the left end of the clamping base;
the upper part of the punching base is provided with a first supporting plate, and the first supporting plate is connected with the top surface of the punching base in a sliding manner in the front-back direction; a plurality of lifting cylinders are arranged at the upper part of the first supporting plate, and piston rods of the lifting cylinders are upwards fixedly connected with the second supporting plate;
a punching cylinder is arranged at the upper part of the second supporting plate, a piston rod of the punching cylinder is fixedly connected with one end of a punching motor rightwards, and a rotating shaft of the punching motor is connected with a drill rightwards;
and the punching base is provided with an adjusting mechanism for controlling the first supporting plate to slide back and forth.
5. The perforating device for building construction as claimed in claim 4, wherein a fixture block is provided at the right end of the perforating base; the clamping base is provided with a clamping groove matched with the clamping block at the left end; the clamping block is connected with the clamping groove through a bolt.
6. The perforating device for building construction as claimed in claim 4, wherein the top surface of the perforating base is provided with a plurality of second chutes extending in the front-rear direction;
and a plurality of second sliding blocks which are in sliding fit with the corresponding second sliding grooves are arranged at the bottom of the first supporting plate.
7. The perforating device for building construction as claimed in claim 6, wherein the adjusting mechanism is an adjusting screw, and a central axis of the adjusting screw extends in a front-rear direction of the perforating base;
the first supporting plate is provided with adjusting holes penetrating through the front end and the rear end; the adjusting screw is in threaded fit with the adjusting hole;
the front end of the punching base is provided with a mounting seat;
the front end of the adjusting screw is rotatably connected with the mounting seat.
8. The perforating device for building construction as claimed in claim 4, wherein a third slide groove extending leftward is provided at a right end of the second support plate, and a motor slider slidably engaged with the third slide groove is provided at a bottom of the perforating motor.
CN202020400042.5U 2020-03-26 2020-03-26 Building construction perforating device Expired - Fee Related CN211917315U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020400042.5U CN211917315U (en) 2020-03-26 2020-03-26 Building construction perforating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020400042.5U CN211917315U (en) 2020-03-26 2020-03-26 Building construction perforating device

Publications (1)

Publication Number Publication Date
CN211917315U true CN211917315U (en) 2020-11-13

Family

ID=73348528

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020400042.5U Expired - Fee Related CN211917315U (en) 2020-03-26 2020-03-26 Building construction perforating device

Country Status (1)

Country Link
CN (1) CN211917315U (en)

Similar Documents

Publication Publication Date Title
CN110281044B (en) Mechanical equipment manufacturing and drilling equipment for metal processing
CN108406203B (en) A location frock for automobile mold processing
CN211917315U (en) Building construction perforating device
CN113732360A (en) Angle-adjustable drilling device for machining
CN215057127U (en) Offset correcting tool for petroleum development drilling and workover rig
CN113909518A (en) Automatic drilling device for plate-type furniture production
CN212121382U (en) Automatic punching device for processing C-shaped steel for photovoltaic support
JP3593090B2 (en) Splice plate drilling machine
CN220943247U (en) Punching device for blank plate positioning holes
CN219786208U (en) Punching machine
CN206215750U (en) A kind of punching aluminum profile device
CN220312563U (en) Punch assembly
CN217727224U (en) Positioning and drilling device for slide rail production
CN221717084U (en) EVA panel puncher of function can fix a position fast
CN221735529U (en) Numerical control door lock tapping machine with positioning device
CN210010491U (en) Wire clamp punching device
JP2518580B2 (en) Die punching device
CN217802200U (en) Seat wood panel punches and uses clamping device
CN219336036U (en) Multifunctional movable double-drill high-precision perforating machine
CN216858335U (en) Steel sheet multistation high accuracy drilling equipment
CN213730225U (en) Positioning extrusion device
CN219241349U (en) Building reinforcing device
CN210967922U (en) Bridge supports mould
CN220028390U (en) Sampling punching device for bolt manufacturing
CN220739526U (en) Aluminum alloy template processing perforating device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201113

Termination date: 20210326

CF01 Termination of patent right due to non-payment of annual fee