CN215144884U - A drilling device for the production of prestressed anchors - Google Patents

A drilling device for the production of prestressed anchors Download PDF

Info

Publication number
CN215144884U
CN215144884U CN202120586264.5U CN202120586264U CN215144884U CN 215144884 U CN215144884 U CN 215144884U CN 202120586264 U CN202120586264 U CN 202120586264U CN 215144884 U CN215144884 U CN 215144884U
Authority
CN
China
Prior art keywords
worktable
fixedly connected
threaded column
drilling device
movable block
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
CN202120586264.5U
Other languages
Chinese (zh)
Inventor
铁卉
史静生
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.)
Kaifeng Sifang Prestress Co ltd
Original Assignee
Kaifeng Sifang Prestress 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 Kaifeng Sifang Prestress Co ltd filed Critical Kaifeng Sifang Prestress Co ltd
Priority to CN202120586264.5U priority Critical patent/CN215144884U/en
Application granted granted Critical
Publication of CN215144884U publication Critical patent/CN215144884U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Drilling And Boring (AREA)

Abstract

一种预应力锚具生产用钻孔装置,包括工作台,工作台上相对开设有两个空腔,两个空腔内分别转动连接有丝杆,两根丝杆上分别螺纹连接有活动板,两个活动板上分别固定连接有夹块,工作台底部设置有用于驱动两根丝杆转动的驱动机构,工作台中心固定连接有载料台,工作台上固定设置有位于载料台一侧的基座,基座上竖直转动连接有螺纹柱,基座上固定连接有位于螺纹柱一侧的安装架,螺纹柱上螺纹连接有活动块,活动块一侧横向固定连接有固定架,活动块另一侧沿竖直方向滑动设置在安装架上,固定架底部设置位于载料台上方的钻头机构。本实用新型结构紧凑、工作稳定、自动化程度高、劳动强度低、操作便捷、装夹效率高、钻孔效率高。

Figure 202120586264

A drilling device for production of prestressed anchors, comprising a worktable, two cavities are relatively opened on the worktable, screw rods are respectively rotatably connected in the two cavities, and movable plates are respectively threadedly connected to the two screw rods , the two movable plates are respectively fixed with clamping blocks, the bottom of the worktable is provided with a driving mechanism for driving the rotation of the two screw rods, the center of the worktable is fixedly connected with a loading table, and the worktable is fixedly provided with a A threaded column is connected vertically on the base, a mounting bracket located on one side of the threaded column is fixedly connected to the base, a movable block is threadedly connected to the threaded column, and a fixing bracket is fixed horizontally on one side of the movable block. , the other side of the movable block is slidably arranged on the mounting frame along the vertical direction, and the bottom of the fixing frame is provided with a drill bit mechanism located above the loading table. The utility model has the advantages of compact structure, stable operation, high degree of automation, low labor intensity, convenient operation, high clamping efficiency and high drilling efficiency.

Figure 202120586264

Description

Drilling equipment is used in prestressed anchorage utensil production
Technical Field
The utility model belongs to the technical field of prestressed anchorage utensil production, especially, relate to a drilling equipment is used in prestressed anchorage utensil production.
Background
The prestressed anchorage is an anchorage for prestressed concrete stretching in engineering construction. Generally, the method is frequently used in bridge construction, the positioning is carried out in advance, and then concrete is poured and buried at two ends of the concrete. The prestressed anchor comprises an anchor ring and a clamping piece, wherein the anchor ring needs to be drilled in the machining process. When present anchor ring drilling machining, adopt three-jaw chuck to press from both sides tightly anchor ring usually, have clamping inefficiency, intensity of labour is big, and on the other hand when driling, beat a hole at every turn usually, it is inefficient to punch to need constantly to adjust the processing position at the in-process of drilling, waste time and energy, be difficult to satisfy large batch production and processing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a drilling equipment is used in prestressed anchorage utensil production that compact structure, job stabilization, degree of automation are high, low in labor strength, simple operation, clamping are efficient, drilling efficiency is high.
In order to solve the technical problem, the utility model adopts the following technical scheme: a drilling device for producing a prestressed anchor comprises a workbench, wherein two vertically through cavities are oppositely formed in the workbench, lead screws are respectively and rotatably connected in the two cavities, movable plates are respectively and threadedly connected to the two lead screws, the front and rear sides of each movable plate are slidably connected with the workbench through sliders, clamping blocks are respectively and fixedly connected to the two movable plates, a driving mechanism for driving the two lead screws to rotate is arranged at the bottom of the workbench, a material carrying table is fixedly connected to the center of the workbench, a plurality of supporting columns are fixedly connected to the top surface array of the material carrying table, a base located on one side of the material carrying table is fixedly arranged on the workbench, a threaded column is vertically and rotatably connected to the base, a first forward and reverse rotation motor for driving the threaded column to rotate is arranged at the bottom of the base, a mounting frame located on one side of the threaded column is fixedly connected to the base, and the top end of the threaded column is rotatably connected to the mounting frame, threaded connection has the movable block on the screw thread post, and the horizontal fixedly connected with mount in movable block one side, the movable block opposite side slide along vertical direction and set up on the mounting bracket, and the mount bottom sets up the drill bit mechanism that is located the material platform top of carrying.
The driving mechanism comprises a second positive and negative rotating motor arranged at the center of the bottom of the workbench, a first central gear is arranged on a power output shaft of the second positive and negative rotating motor, two sides of the lower part of the workbench are respectively and rotatably connected with a transmission shaft, first transmission gears in meshing transmission connection with the first central gear are respectively arranged on the two transmission shafts, driving bevel gears are respectively arranged at the tops of the two transmission shafts, and driven bevel gears corresponding to and in meshing transmission connection with the driving bevel gears are respectively arranged at one ends of the two lead screws.
The drill bit mechanism comprises a mounting seat which is arranged at the bottom of the fixing frame in a transverse sliding mode, a driving motor is arranged on the upper portion of the mounting seat, a power output shaft of the driving motor is connected with a central shaft in a transmission mode, four connecting shafts are evenly and rotatably connected in the mounting seat along the circumferential direction, a second central gear is arranged in the middle of the central shaft, second transmission gears which are in meshing transmission connection with the second central gear are respectively arranged in the middle of the four connecting shafts, the size and the number of teeth of the second central gear and each second transmission gear are the same, and the lower ends of the central shaft and the four connecting shafts all extend downwards out of the mounting seat and are provided with connecting drill bits.
The limiting mechanism is arranged above the workbench and comprises a connecting frame fixedly arranged above the workbench, a cylinder is respectively installed on two sides of the connecting frame, a piston rod end portion of the cylinder is fixedly connected with a pressing plate, limiting grooves are respectively formed in two sides of the top surface of each clamping block, and limiting blocks matched with the limiting grooves in the clamping blocks are fixedly connected to the bottom surfaces of the pressing plates.
The fixing frame is characterized in that a mounting plate is fixedly connected to one side of the fixing frame, an electric push rod is transversely mounted on the mounting plate, and the end part of a piston rod of the electric push rod is fixedly connected to the side part of the mounting seat.
By adopting the technical scheme, when the utility model is used, an anchor ring to be drilled is placed on a support column of a material carrying platform, the rotation of a second positive and negative rotation motor is controlled, the first central gear and first transmission gears on two sides are engaged for transmission to respectively drive two transmission shafts to rotate, the two transmission shafts are engaged for transmission with corresponding driven bevel gears through a driving bevel gear on the top respectively, so as to respectively drive two lead screws to rotate, a movable plate is connected with each lead screw through screw threads, the movable plate is connected on the workbench in a sliding manner, the freedom degree of the movable plate in the circumferential direction is limited, the lead screws are rotated and simultaneously drive the movable plate to move along the length direction of the lead screws, so that two clamping blocks are close to each other until the anchor ring is clamped, the piston rods of two cylinders are controlled to extend out at the moment, the pressure plate is driven to move downwards, and a limit block at the bottom of the pressure plate extends into a limit groove on the corresponding clamping block, thereby limiting the clamping block, completing the clamping of the anchor ring, then controlling the first positive and negative rotation motor to drive the threaded column to rotate, because the movable block is connected on the threaded column in a threaded manner, and the side part of the movable block is arranged on the mounting frame in a sliding manner, the freedom degree of the movable block in the circumferential direction is limited, and when the threaded column rotates, driving the movable block and the fixed frame to move vertically, so that each connecting drill bit is close to the anchor ring on the material loading platform, while moving vertically, the electric push rod can be controlled to push the mounting seat to slide transversely along the fixing frame, so that each connecting drill bit is aligned with the anchor ring, the driving motor is controlled to drive the central shaft to rotate, the central shaft synchronously drives each connecting shaft to rotate through the meshing transmission of the second central gear and each second transmission gear, enabling each connecting drill bit to rotate respectively, and drilling the anchor ring in the downward moving process; by adopting the structure, the anchor ring can be automatically clamped, the clamping efficiency is greatly improved, the labor intensity is low, the drilling is completed by one-time processing through a plurality of connecting drill bits, and the drilling efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic top view of two clamping blocks of the present invention;
fig. 3 is a schematic structural diagram of a drill mechanism according to the present invention;
fig. 4 is a schematic view of a transmission structure in the mounting seat of the present invention.
Detailed Description
As shown in figures 1-4, the drilling device for prestressed anchorage device production of the present invention comprises a workbench 1, two vertically through cavities are oppositely arranged on the workbench 1, two screw rods 2 are respectively rotatably connected in the two cavities, two movable plates 3 are respectively connected to the two screw rods 2 by screw threads, the front and rear sides of the movable plate 3 are slidably connected to the workbench 1 through sliders, two clamp blocks 4 are respectively fixedly connected to the two movable plates 3, a driving mechanism for driving the two screw rods 2 to rotate is arranged at the bottom of the workbench 1, the driving mechanism comprises a second forward and reverse rotation motor 5 installed at the center of the bottom of the workbench 1, a first central gear 6 is installed on a power output shaft of the second forward and reverse rotation motor 5, two transmission shafts 7 are respectively rotatably connected to two sides of the lower portion of the workbench 1, and a first transmission gear 8 engaged with the first central gear 6 is installed on the two transmission shafts 7, the tops of the two transmission shafts 7 are respectively provided with a driving bevel gear 9, and one ends of the two screw rods 2 are respectively provided with a driven bevel gear 10 correspondingly connected with the driving bevel gear 9 in a meshing transmission way; a material carrying platform 11 is fixedly connected to the center of the workbench 1, a plurality of support columns 12 are fixedly connected to the top surface array of the material carrying platform 11, a limiting mechanism is arranged above the workbench 1 and comprises a connecting frame 13 fixedly arranged above the workbench 1, two sides of the connecting frame 13 are respectively provided with a cylinder 14, the end part of a piston rod of each cylinder 14 is fixedly connected with a pressing plate 15, two sides of the top surface of each clamping block 4 are respectively provided with a limiting groove 16, the bottom surface of each pressing plate 15 is fixedly connected with a limiting block 17 matched with the limiting grooves 16 on the clamping blocks 4, the workbench 1 is fixedly provided with a base 18 positioned on one side of the material carrying platform 11, a threaded column 19 is vertically and rotatably connected to the base 18, the bottom of the base 18 is provided with a first forward and reverse rotation motor 20 for driving the threaded column 19 to rotate, the base 18 is fixedly connected with a mounting frame 21 positioned on one side of the threaded column 19, the top end of the threaded column 19 is rotatably connected to the mounting frame 21, the threaded column 19 is in threaded connection with a movable block 22, one side of the movable block 22 is transversely and fixedly connected with a fixed frame 23, the other side of the movable block 22 is arranged on an installation frame 21 in a sliding mode along the vertical direction, a drill bit mechanism arranged above the material loading platform 11 is arranged at the bottom of the fixed frame 23 and comprises an installation seat 24 transversely arranged at the bottom of the fixed frame 23 in a sliding mode, a driving motor 25 is arranged at the upper portion of the installation seat 24, a power output shaft of the driving motor 25 is in transmission connection with a central shaft 26, four connecting shafts 27 are uniformly and rotatably connected in the installation seat 24 along the circumferential direction, a second central gear 28 is arranged in the middle of the central shaft 26, second transmission gears 29 which are in meshing transmission connection with the second central gear 28 are respectively arranged in the middle of the four connecting shafts 27, the second central gear 28 and each second transmission gear 29 have the same size and number of teeth, the lower ends of the central shaft 26 and the four connecting shafts 27 extend downwards out of the installation seat 24 and are provided with connecting bits 30, one side of the fixing frame 23 is fixedly connected with an installation plate 31, an electric push rod 32 is transversely installed on the installation plate 31, and the end part of a piston rod of the electric push rod 32 is fixedly connected with the side part of the installation seat 24.
When the utility model is used, the anchor ring to be drilled is placed on the support post 12 of the material loading platform 11, the second positive and negative rotation motor 5 is controlled to rotate, the first central gear 6 and the first transmission gears 8 on two sides are engaged for transmission to respectively drive the two transmission shafts 7 to rotate, the two transmission shafts 7 are engaged for transmission with the corresponding driven bevel gears 10 through the driving bevel gear 9 on the top respectively, so as to respectively drive the two lead screws 2 to rotate, the thread on each lead screw 2 is connected with the movable plate 3, the movable plate 3 is connected on the workbench 1 in a sliding way, the freedom degree of the movable plate in the circumferential direction is limited, the movable plate 3 is driven to move along the length direction of the lead screws 2 while the lead screws 2 rotate, so that the two clamping blocks 4 are close to each other until the anchor ring is clamped, the piston rods of the two air cylinders 14 are controlled to extend out at the moment, the pressing plate 15 is driven to move downwards, the limiting block 17 at the bottom of the pressing plate 15 extends into the limiting groove 16 on the corresponding clamping block 4, thereby limiting the clamping block 4, completing clamping of the anchor ring, then controlling the first forward and reverse rotation motor 20 to drive the threaded post 19 to rotate, because the movable block 22 is in threaded connection with the threaded post 19, and the side part of the movable block 22 is slidably arranged on the mounting frame 21, limiting the degree of freedom of the movable block 22 in the circumferential direction, while the threaded post 19 rotates, driving the movable block 22 and the fixing frame 23 to vertically move, so that each connecting drill bit 30 is close to the anchor ring on the material loading platform 11, while moving vertically, the controllable electric push rod 32 can push the mounting seat 24 to transversely slide along the fixing frame 23, so that each connecting drill bit 30 aligns with the anchor ring, controlling the driving motor 25 to drive the central shaft 26 to rotate, the central shaft 26 synchronously drives each connecting shaft 27 to rotate through the meshing transmission of the second central gear 28 and each second transmission gear 29, so that each connecting drill bit 30 rotates respectively, thereby drilling the anchor ring in the downward moving process; by adopting the structure, the anchor ring can be automatically clamped, the clamping efficiency is greatly improved, the labor intensity is low, the drilling is finished by one-time processing through the plurality of connecting drill bits 30, and the drilling efficiency is greatly improved.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims (5)

1.一种预应力锚具生产用钻孔装置,其特征在于:包括工作台,工作台上相对开设有两个上下通透的空腔,两个空腔内分别转动连接有丝杆,两根丝杆上分别螺纹连接有活动板,活动板前后两侧通过滑块与工作台滑动连接,两个活动板上分别固定连接有夹块,工作台底部设置有用于驱动两根丝杆转动的驱动机构,工作台中心固定连接有载料台,载料台顶面阵列固定连接有若干支撑柱,工作台上固定设置有位于载料台一侧的基座,基座上竖直转动连接有螺纹柱,基座底部设置有用于驱动螺纹柱转动的第一正反转电机,基座上固定连接有位于螺纹柱一侧的安装架,螺纹柱顶端转动连接在安装架上,螺纹柱上螺纹连接有活动块,活动块一侧横向固定连接有固定架,活动块另一侧沿竖直方向滑动设置在安装架上,固定架底部设置位于载料台上方的钻头机构。1. A drilling device for prestressed anchorage production is characterized in that: comprise a workbench, and two upper and lower transparent cavities are relatively opened on the workbench, and the two cavities are respectively rotatably connected with a screw rod, and the two A movable plate is threadedly connected to the screw rod. The front and rear sides of the movable plate are slidably connected to the worktable through the slider. The two movable plates are respectively fixed with clamping blocks. The drive mechanism, the center of the worktable is fixedly connected with a loading table, the top surface of the loading table is fixedly connected with a number of support columns, the worktable is fixedly arranged with a base located on one side of the loading table, and the base is vertically rotatably connected with a A threaded column, the bottom of the base is provided with a first forward and reverse rotation motor for driving the rotation of the threaded column, the base is fixedly connected with a mounting bracket located on one side of the threaded column, the top of the threaded column is rotatably connected to the mounting bracket, and the thread on the threaded column is threaded. A movable block is connected, one side of the movable block is fixedly connected with a fixed frame horizontally, the other side of the movable block is slidably arranged on the installation frame along the vertical direction, and the bottom of the fixed frame is provided with a drill bit mechanism located above the material loading table. 2.根据权利要求1所述的预应力锚具生产用钻孔装置,其特征在于:所述驱动机构包括安装在工作台底部中心的第二正反转电机,第二正反转电机的动力输出轴上安装有第一中心齿轮,工作台下部两侧分别转动连接有一根传动轴,两根传动轴上分别安装有与第一中心齿轮啮合传动连接的第一传动齿轮,两根传动轴顶部分别安装有主动锥齿轮,两根丝杆一端分别安装有对应与主动锥齿轮啮合传动连接的从动锥齿轮。2 . The drilling device for producing prestressed anchors according to claim 1 , wherein the driving mechanism comprises a second forward and reverse rotation motor installed at the center of the bottom of the worktable, and the power of the second forward and reverse rotation motor is 2. 3 . A first central gear is installed on the output shaft, and a transmission shaft is rotatably connected to both sides of the lower part of the worktable. A driving bevel gear is respectively installed, and one end of the two screw rods is respectively installed with a driven bevel gear which is meshed and connected with the driving bevel gear. 3.根据权利要求2所述的预应力锚具生产用钻孔装置,其特征在于:所述钻头机构包括横向滑动设置在固定架底部的安装座,安装座上部设置有驱动电机,驱动电机的动力输出轴传动连接有中心轴,安装座内沿圆周方向均匀转动连接有四根连接轴,中心轴中部安装有第二中心齿轮,四根连接轴中部分别安装有均与第二中心齿轮啮合传动连接的第二传动齿轮,第二中心齿轮和各个第二传动齿轮的大小和齿数相同,中心轴和四根连接轴下端均向下伸出安装座并安装有连接钻头。3 . The drilling device for production of prestressed anchors according to claim 2 , wherein the drill bit mechanism comprises a mounting seat that is laterally slidably arranged at the bottom of the fixing frame, and a driving motor is arranged on the upper part of the mounting seat. The power take-off shaft is connected with a central shaft, four connecting shafts are evenly connected in the circumferential direction in the mounting seat, and a second central gear is installed in the middle of the central shaft. The connected second transmission gear, the second central gear and each second transmission gear have the same size and number of teeth, the central shaft and the lower ends of the four connecting shafts protrude downward from the mounting seat and are installed with a connecting drill bit. 4.根据权利要求3所述的预应力锚具生产用钻孔装置,其特征在于:工作台上方设置有限位机构,限位机构包括固定设置在工作台上方的连接架,连接架两侧分别安装有一个气缸,气缸的活塞杆端部固定连接有压板,两个夹块顶面两侧分别开设有限位槽,压板底面固定连接有与夹块上的限位槽相适配的限位块。4. The drilling device for producing prestressed anchors according to claim 3, characterized in that: a limit mechanism is arranged above the worktable, and the limiter mechanism comprises a connection frame fixedly arranged above the worktable, and the two sides of the connection frame are respectively A cylinder is installed, and a pressure plate is fixedly connected to the end of the piston rod of the cylinder. There are limit grooves on both sides of the top surface of the two clamping blocks, and the bottom surface of the pressure plate is fixedly connected with a limit block that matches the limit groove on the clamp block. . 5.根据权利要求4所述的预应力锚具生产用钻孔装置,其特征在于:所述固定架一侧固定连接有安装板,安装板上横向安装有电动推杆,电动推杆的活塞杆端部固定连接在安装座侧部。5. The drilling device for production of prestressed anchors according to claim 4, wherein a mounting plate is fixedly connected to one side of the fixing frame, and an electric push rod is laterally installed on the mounting plate, and the piston of the electric push rod The rod end is fixedly attached to the side of the mount.
CN202120586264.5U 2021-03-23 2021-03-23 A drilling device for the production of prestressed anchors Expired - Fee Related CN215144884U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120586264.5U CN215144884U (en) 2021-03-23 2021-03-23 A drilling device for the production of prestressed anchors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120586264.5U CN215144884U (en) 2021-03-23 2021-03-23 A drilling device for the production of prestressed anchors

Publications (1)

Publication Number Publication Date
CN215144884U true CN215144884U (en) 2021-12-14

Family

ID=79351986

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120586264.5U Expired - Fee Related CN215144884U (en) 2021-03-23 2021-03-23 A drilling device for the production of prestressed anchors

Country Status (1)

Country Link
CN (1) CN215144884U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115184139A (en) * 2022-07-05 2022-10-14 西安交通大学 Two-way-application-preloading composite material impact test clamp capable of being monitored and method
CN115815655A (en) * 2023-01-03 2023-03-21 吴江市明港道桥工程有限公司 Punching device and method for bridge steel structure
CN116944550A (en) * 2023-09-21 2023-10-27 常州富丽康精密机械有限公司 Drilling device with stress deformation preventing function for linear guide rail production

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115184139A (en) * 2022-07-05 2022-10-14 西安交通大学 Two-way-application-preloading composite material impact test clamp capable of being monitored and method
CN115815655A (en) * 2023-01-03 2023-03-21 吴江市明港道桥工程有限公司 Punching device and method for bridge steel structure
CN116944550A (en) * 2023-09-21 2023-10-27 常州富丽康精密机械有限公司 Drilling device with stress deformation preventing function for linear guide rail production
CN116944550B (en) * 2023-09-21 2023-12-01 常州富丽康精密机械有限公司 Drilling device with stress deformation preventing function for linear guide rail production

Similar Documents

Publication Publication Date Title
CN215144884U (en) A drilling device for the production of prestressed anchors
CN110977519A (en) Positioning fixture for numerical control machining center
CN215144883U (en) Drill bit mechanism for drilling prestressed anchorage device
CN215147061U (en) A drilling jig for production of prestressed anchors
CN114536075B (en) Motor casing material loading stop device
CN215146620U (en) Tapping device for producing prestressed anchorage device
CN221211629U (en) Automobile part overturning tool
CN103009159A (en) Automatic hydraulic clamping device for fracture toughness sample
CN221538952U (en) Drilling equipment for precision parts
CN212287122U (en) Grinding device for bearing machining
CN212793118U (en) Drilling auxiliary device for production of oilfield wellhead fittings
CN210909692U (en) Die clamp with adjustable height
CN221754757U (en) Radial drilling machine for steel structure production
CN202985190U (en) Automatic hydraulic clamping device for breaking tenacity sample
CN112338223A (en) High-efficient drilling equipment is used in metal product production
CN223301317U (en) A machining multi-station fixture
CN220970847U (en) Drilling fixture for production of prestressed anchorage device
CN216370556U (en) Wire cutting machine tool
CN215145391U (en) Automatic tapping device is used in production of prestressed anchorage utensil clamping piece
CN216228284U (en) Cutting bits processing apparatus for lathe work processing
CN223544128U (en) A drilling device for large-format board production
CN223199282U (en) A cement board punching machine for municipal engineering
CN221984939U (en) A jewelry positioning device convenient for clamping
CN223198186U (en) A quick-change gear hobbing fixture
CN220839661U (en) Workpiece polishing fixing clamp

Legal Events

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

Granted publication date: 20211214