CN108581583A - Ball-screw pre-stretching amount controllable adjustment device - Google Patents
Ball-screw pre-stretching amount controllable adjustment device Download PDFInfo
- Publication number
- CN108581583A CN108581583A CN201810849603.7A CN201810849603A CN108581583A CN 108581583 A CN108581583 A CN 108581583A CN 201810849603 A CN201810849603 A CN 201810849603A CN 108581583 A CN108581583 A CN 108581583A
- Authority
- CN
- China
- Prior art keywords
- screw
- wire
- ball
- support base
- fixed
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/404—Screw bearings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to mechanical manufacturing fields, specifically disclose ball-screw pre-stretching amount controllable adjustment device, including drawing mechanism and clamp system, clamp system includes the fixed seat being arranged in leading screw both sides, it is slid vertically in fixed seat and is connected with support base, it is fixed with several one metal wires between support base in two fixed seats, it is slid vertically on support base and is connected with several along the equally distributed slider of leading screw length direction, slider is tapered, slider passes through several one metal wires and big stock wire is divided into several shallow bid wires that can be caught in lead screw screw channel, the radical of wire is identical in per share wire.The part of lead screw can be pre-stretched using the present invention.
Description
Technical field
The present invention relates to mechanical manufacturing fields, and in particular to ball-screw pre-stretching amount controllable adjustment device.
Background technology
Ball-screw is the basic mechanical driving device of NC machine tool feed system, and precision will directly affect numerically-controlled machine tool
Machining accuracy.Ball-screw during the work time, due to the friction force effect between leading screw and ball, when ball-screw works
It can generate heat, and leading screw fever can expand deformation, to increase helical pitch, influence its transmission and positioning accuracy.
With the continuous development of industry manufacture, enterprise is higher and higher to the requirement on machining accuracy of lathe, therefore to improve machine
The precision of bed, it is necessary to the thermal expansion of leading screw be compensated, in existing numerically-controlled machine tool device structure, ball-screw is usual
Using the fixed mounting means installation in both ends, i.e., it is mounted on the base by two end axles bearing to be installed.
In order to compensate for the thermal expansion length of leading screw, pre-stretching operation generally is carried out to leading screw in advance, in the prior art to leading screw
There are two types of the modes being pre-stretched, and one is pulling force is applied to the fixed support of one end, leading screw is stretched to required length
Degree, another kind are to apply pulling force to the fixed support of one end, however above two mode is integrally stretched to leading screw,
The lead screw of leading screw and smooth bar part are stretched, the part of leading screw cannot be stretched.
Invention content
The purpose of the present invention is to provide ball-screw pre-stretching amount controllable adjustment devices, can be carried out to the part of lead screw pre-
It stretches.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
Ball-screw pre-stretching amount controllable adjustment device, including drawing mechanism and clamp system, clamp system include setting
Fixed seat in leading screw both sides slides vertically in fixed seat and is connected with support base, solid between the support base in two fixed seats
Surely there are several one metal wires, slid vertically on support base and be connected with several along the equally distributed isolation of leading screw length direction
Body, slider is tapered, and slider passes through several one metal wires and is divided into several shallow bids that can be caught in lead screw screw channel
Wire, the radical of wire is identical in per share wire.
The principle of this programme is：
For being clamped to the lead screw of leading screw, drawing mechanism presss from both sides clamp system for being pre-stretched to leading screw end
In tight mechanism, support construction of the fixed seat as support base, two support bases are used to fix wire, on support base it is each every
The in vitro wire for the wire of big stock to be isolated into multiple shallow bids drives wire close when support base vertical and straight movement
Lead screw moves, and the spacing between each stock wire is exactly the spacing between lead screw screw channel, therefore each stock wire can block just
Enter in each screw channel of lead screw, the radical of suitable wire is selected according to the width of lead screw screw channel and depth so that each spiral shell
It is filled completely by wire just in slot, since slider is tapered, wire is pushed against on isolation body sidewall, when slider is vertical
After movement, the spacing between each stock wire changes, to be adapted to the screw pitch width of different lead screws.
Following technique effect can be reached using this programme：
1, it is caught in lead screw screw channel by wire, realization clamps lead screw, and lead screw screw channel is caught in using more one metal wires
The interior clamping for realizing lead screw, more common stress of one metal wire can bear larger load, be not easy to beat between wire and lead screw
Sliding, clamping effect is good, then is stretched through drawing mechanism, therefore can realize the local elongation of lead screw.
2, the radical of wire in per share wire is selected according to the screw channel width of lead screw and depth so that screw channel can be golden
It is full to belong to silk filling, therefore can be suitably used for different leading screw screw channel widths and depth, it is applied widely.
3, the spacing between each stock wire can be adjusted by adjusting the height of slider, adapted in different lead screw spiral shells
Away from width, the scope of application is further expanded.
Further, wire is made of memory alloy material.Memory alloy material matter is soft, when wire is pushed against lead screw
When screw channel inner wall, wire can be fitted closely with lead screw screw channel inner wall, increase the forced area of lead screw screw channel inner wall and wire,
Avoid the problem that stress concentration.
Further, wire is connected with strainer.After increasing due to the spacing of adjacent two strands of wires, the tensioning of wire
Power increases, and after spacing reduces, the tensile force of wire reduces, after strainer can be such that the spacing of adjacent two strands of wires changes,
The tensile force of wire remains unchanged, therefore wire remains unchanged the clamping force of lead screw screw channel.
Further, strainer includes the tensioning wheel being rotatably connected on bearing block, and wire, which is fixed and is wrapped in, to be opened
On bearing up pulley.It is rotated forward by tensioning wheel, drives wire to be wrapped on tensioning wheel, realize the tensioning of wire；It is anti-by tensioning wheel
Turn, drives wire gradually to be released from tensioning wheel, realize loosening for wire.
Further, leading screw both sides are respectively equipped with the sliding slot extended along leading screw length direction, two fixed seats company of sliding respectively
It is connected in two sliding slots, cylinder is further fixed between two sliding slots, two fixed seats are fixedly connected with the output rod of cylinder respectively.
It is elongated or shortened by cylinder output rod, two fixed seats can be driven to be slided in two sliding slots respectively, to realize to lead screw
The clamping of each different parts.
Further, the support base number in fixed seat is two, and two support bases in fixed seat are vertically distributed, Gu
Two support bases in reservation are detachably connected.Wire on two support bases can be to the screw channel and following table of the upper surface of lead screw
The screw channel in face carries out clamping, more preferable to the clamping effect of lead screw.
Description of the drawings
Fig. 1 is the front view of the removing clamp system of the embodiment of the present invention；
Fig. 2 is the vertical view of clamp system in the embodiment of the present invention (upper clamping mechanism is not drawn into)；
Fig. 3 is the partial enlarged view of part A in Fig. 2.
Specific implementation mode
Below by the further details of explanation of specific implementation mode：
Reference numeral in Figure of description includes：Lathe 100, lead screw 1, screw channel 101, bearing block 2, high pressure air cavity 20,
Auxiliary push-rod 201, step 200, bearing group 3, pre-stretching cylinder 4, sliding slot 5, fixed seat 6, wire 7, wire spool 8, support base
9, drive rod 10, insulated column 11.
As depicted in figs. 1 and 2, the ball-screw pre-stretching amount controllable adjustment device of the present embodiment, including drawing mechanism and
Clamp system, leading screw both ends are mounted on by bearing group 3 and bearing block 2 on lathe 100, and specific mounting means is：Bearing group 3 is solid
It is scheduled on leading screw end, bearing block 2 is fixedly mounted on lathe 100, and bearing group 3 is mounted in bearing block 2, and drawing mechanism includes point
Pre-stretching cylinder 4 and high pressure air cavity 20 in 2 both sides of Left hand bearing block be not set, output rod and the left side of cylinder 4 are pre-stretched
Bearing block 2 is fixedly connected, and being slidably connected in the gas outlet of high pressure air cavity 20, there are one auxiliary push-rods 201, and auxiliary push-rod 201 is freely
End be fixedly connected with the bearing block 2 in left side, set on lathe 100 there are one step 200, the left side of the bearing block 2 on right side and platform
The right side of rank 200 offsets.
In conjunction with shown in Fig. 2 and Fig. 3, clamp system includes the sliding slot 5 mounted on 1 both sides of lead screw, and two sliding slots 5 are and lead screw
1 is parallel, and fixed seat 6 is slidably connected in sliding slot 5, and adjusting cylinder is further fixed between two sliding slots 5, and two fixed seats 6 are divided
It is not fixedly connected with the output rod for adjusting cylinder.Upper clamping mechanism and lower clamp system, upper clamping are equipped between two fixed seats 6
Mechanism is located at 1 top of lead screw, and lower clamp system is located at 1 lower section of lead screw, and upper clamping mechanism is identical with the structure of lower clamp system, this
The structure for sentencing lower clamp system illustrates, and lower clamp system includes two support bases 9, and two support bases 9 are vertical sliding respectively
It is dynamic to be connected in two fixed seats 6, and be separately installed with a hydraulic cylinder in two fixed seats 6 and be respectively used to two supports of driving
The vertical and straight movement of seat 9 is connected with the big stock wire 7 of the composition of more one metal wires 7 between two support bases 9, and wire 7 is using memory
Alloy material is made, and rotation connection winds and fix there are one wire spool 8, the both ends of wire 7 respectively on two support bases 9
On two wire spools 8, the tensioning of wire 7 can be realized by the positive and negative rotation of wire spool 8 and loosened.It is also perpendicular on support base 9
To being slidably connected there are one lateral drive rod 10, multiple vertical insulated columns 11 are fixed on drive rod 10, insulated column 11 is equal
Between support base 9 and lead screw 1, insulated column 11 is in up big and down small round table-like, and multiple insulated columns 11 are along 1 length direction of lead screw
It is uniformly distributed, multiple insulated columns 11 both pass through more one metal wires 7, the wire 7 of big stock are separated into the wire 7 of shallow bid, often
The 7 radical all same of wire of stock wire 7, wire 7 is pushed against on the side wall of insulated column 11, thus each stock wire 7 it
Between spacing it is identical.
Upper clamping mechanism is identical as lower clamp system, and 9 bottom of support base in upper clamping mechanism is opened up there are one rectangular column,
The rectangular opening that can coordinate with rectangular column there are one being set at the top of support base 9 in lower clamp system, upper clamping mechanism and lower clamping machine
Assembly method between structure is：The rectangular column of 9 bottom of support base in upper clamping mechanism is inserted into the support base 9 in lower clamp system
In the rectangular opening at top, that is, realize the connection between upper clamping mechanism and lower clamp system.
When being pre-stretched to ball screw 1, first lead screw 1 is clamped using clamp system, the concrete mode of clamping
It is as follows：Open the switch for adjusting cylinder, adjust cylinder and drive the sliding in two sliding slots 5 respectively of two fixed seats 6, make two it is solid
Reservation 6 moves to lead screw 1 and needs the position clamped, is selected in per share wire 7 according to the width of 1 screw channel 101 of lead screw and depth
The radical of wire 7 so that per share wire 7 just can fill the screw channel 101 of lead screw 1 completely, and adjust the perpendicular of drive rod 10
Straight height so that the spacing between each stock wire 7 is equal with the screw pitch of lead screw 1, is then turned on the switch of hydraulic cylinder, hydraulic cylinder band
Support base 9 in dynamic upper clamping mechanism moves upwards so that each stock wire 7 moves closer to lead screw 1, final each stock wire 7
Just it is caught in each screw channel 101 of lead screw 1, similarly, each stock wire 7 in lower clamp system moves downward also to be caught in just
In each screw channel 101 of lead screw 1, the upper and lower surface of lead screw 1 is clamped, and clamping effect is good.At this point, opening prestretching
The switch of cylinder 4 is stretched, pre-stretching 4 output rod of cylinder shortens, and drives the bearing block 2 in left side to move downward, due to 1 middle part quilt of lead screw
Clamp system clamps, while the bearing block 2 on right side is fixed by step 200, to realize to the left end of lead screw 1 to clamp system portion
The pre-stretching divided, then gas is filled with into high pressure air cavity 20, air pressure increase in high pressure air cavity 20 drives auxiliary push-rod 201 to push
The bearing block 2 in left side continues to move downward, can be with the pre-stretching amount of adjusting screw according to the amount for being filled with gas in high pressure air cavity 20.
This programme can stretch the part of lead screw 1 compared with traditional lead screw 1 is pre-stretched, due to using more gold
Belong to silk 7 and be caught in the clamping for realizing lead screw 1 in the screw channel 101 of lead screw 1,7 common stress of more one metal wires can bear larger lotus
It carries, and since wire 7 is stuck in the screw channel 101 of lead screw 1, is not easy to skid between wire 7 and lead screw 1, clamping effect
It is good.This programme can also select the radical of wire 7 in per share wire 7 according to 101 width of screw channel and depth of lead screw 1 so that
Screw channel 101 can be filled completely by wire 7, therefore can be suitably used for different 101 width of leading screw screw channel and depth, by adjusting isolation
The height of column 11 can adjust the spacing between each stock wire 7, adapt in different 1 screw pitch width of lead screw, applied widely.
When being pre-stretched to leading screw, since wire 7 is made of memory alloy material, memory alloy material matter is soft, works as metal
When silk 7 is pushed against 1 101 inner wall of screw channel of lead screw, wire 7 can be fitted closely with 1 screw channel of lead screw, 101 inner wall, increase 1 screw channel of lead screw
The forced area of 101 inner walls and wire 7, avoids the problem that stress concentration.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific implementation mode can be used for explaining the content of claim.
Claims (6)
1. ball-screw pre-stretching amount controllable adjustment device, it is characterised in that：Including drawing mechanism and clamp system, the clamping
Mechanism includes the fixed seat being arranged in leading screw both sides, is slid vertically in the fixed seat and is connected with support base, two fixed seats
On support base between be fixed with several one metal wires, slid vertically on support base and be connected with several along leading screw length direction
Equally distributed slider, the slider is tapered, and the slider passes through several one metal wires and by big stock wire
It is divided into several shallow bid wires that can be caught in lead screw screw channel, the radical of wire is identical in per share wire.
2. ball-screw pre-stretching amount controllable adjustment device according to claim 1, it is characterised in that：The wire is adopted
It is made of memory alloy material.
3. ball-screw pre-stretching amount controllable adjustment device according to claim 2, it is characterised in that：The wire connects
There is strainer.
4. ball-screw pre-stretching amount controllable adjustment device according to claim 3, it is characterised in that：The strainer
Including the tensioning wheel being rotatably connected on bearing block, the wire is fixed and is wrapped on tensioning wheel.
5. ball-screw pre-stretching amount controllable adjustment device according to claim 4, it is characterised in that：The leading screw both sides
It is respectively equipped with the sliding slot extended along leading screw length direction, two fixed seats are slidably connected at respectively in two sliding slots, two sliding slots
Between be further fixed on cylinder, two fixed seats are fixedly connected with the output rod of cylinder respectively.
6. ball-screw pre-stretching amount controllable adjustment device according to claim 5, it is characterised in that：In the fixed seat
Support base number be two, and two support bases in fixed seat are vertically distributed, and two in fixed seat support base is removable
Unload connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849603.7A CN108581583B (en) | 2018-07-28 | 2018-07-28 | Ball-screw pre-stretching amount controllable adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849603.7A CN108581583B (en) | 2018-07-28 | 2018-07-28 | Ball-screw pre-stretching amount controllable adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108581583A true CN108581583A (en) | 2018-09-28 |
| CN108581583B CN108581583B (en) | 2019-08-20 |
Family
ID=63618416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810849603.7A Active CN108581583B (en) | 2018-07-28 | 2018-07-28 | Ball-screw pre-stretching amount controllable adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108581583B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110653625A (en) * | 2019-05-27 | 2020-01-07 | 上海帮楚自动化科技有限公司 | Lead screw is to drawing slip table module |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133864A (en) * | 1983-01-18 | 1984-08-01 | Hitachi Ltd | Lead screw device for drive of reciprocative table |
| JPH08233060A (en) * | 1995-02-24 | 1996-09-10 | Kyushu Toshiba Kikai Kk | Ball screw device equipped with mechanism of fine displacement between double nuts |
| JP2005066716A (en) * | 2003-08-28 | 2005-03-17 | Toyo Seiki Kogyo Co Ltd | Screw-feeding mechanism, working device provided with the same, and manufacturing method for screw-feeding mechanism |
| CN1785780A (en) * | 2005-07-01 | 2006-06-14 | 上海振华港口机械（集团）股份有限公司 | Steel cable winding system for container crane lifting and trolley compound motion |
| CN202208926U (en) * | 2011-08-26 | 2012-05-02 | 柳州十一冶机械制造有限责任公司 | Tandem traction system for retaining wall pipe of ramming enlarged pile driver |
| CN202388300U (en) * | 2011-12-16 | 2012-08-22 | 江苏新瑞重工科技有限公司 | Ball screw prestretching structure |
| CN202655856U (en) * | 2012-04-25 | 2013-01-09 | 湖南华控科技有限公司 | Constant temperature difference pre-stretching device for screw |
| CN203309006U (en) * | 2013-06-17 | 2013-11-27 | 佛山市海盈食品有限公司 | Wire rope joint |
| JP2014040896A (en) * | 2012-08-23 | 2014-03-06 | Thk Co Ltd | Ball screw device, and automatic transmission using the same |
| CN103861881A (en) * | 2014-02-27 | 2014-06-18 | 烟台金德精密铜管有限公司 | Copper pipe section drawing device |
| CN103899835A (en) * | 2012-12-25 | 2014-07-02 | 西安航天远征流体控制股份有限公司 | Metal bellows for pulse valve |
| CN106312595A (en) * | 2016-11-02 | 2017-01-11 | 四川理工学院 | Lead screw supporting structure and precise pre-stretching method thereof |
-
2018
- 2018-07-28 CN CN201810849603.7A patent/CN108581583B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133864A (en) * | 1983-01-18 | 1984-08-01 | Hitachi Ltd | Lead screw device for drive of reciprocative table |
| JPH08233060A (en) * | 1995-02-24 | 1996-09-10 | Kyushu Toshiba Kikai Kk | Ball screw device equipped with mechanism of fine displacement between double nuts |
| JP2005066716A (en) * | 2003-08-28 | 2005-03-17 | Toyo Seiki Kogyo Co Ltd | Screw-feeding mechanism, working device provided with the same, and manufacturing method for screw-feeding mechanism |
| CN1785780A (en) * | 2005-07-01 | 2006-06-14 | 上海振华港口机械（集团）股份有限公司 | Steel cable winding system for container crane lifting and trolley compound motion |
| CN202208926U (en) * | 2011-08-26 | 2012-05-02 | 柳州十一冶机械制造有限责任公司 | Tandem traction system for retaining wall pipe of ramming enlarged pile driver |
| CN202388300U (en) * | 2011-12-16 | 2012-08-22 | 江苏新瑞重工科技有限公司 | Ball screw prestretching structure |
| CN202655856U (en) * | 2012-04-25 | 2013-01-09 | 湖南华控科技有限公司 | Constant temperature difference pre-stretching device for screw |
| JP2014040896A (en) * | 2012-08-23 | 2014-03-06 | Thk Co Ltd | Ball screw device, and automatic transmission using the same |
| CN103899835A (en) * | 2012-12-25 | 2014-07-02 | 西安航天远征流体控制股份有限公司 | Metal bellows for pulse valve |
| CN203309006U (en) * | 2013-06-17 | 2013-11-27 | 佛山市海盈食品有限公司 | Wire rope joint |
| CN103861881A (en) * | 2014-02-27 | 2014-06-18 | 烟台金德精密铜管有限公司 | Copper pipe section drawing device |
| CN106312595A (en) * | 2016-11-02 | 2017-01-11 | 四川理工学院 | Lead screw supporting structure and precise pre-stretching method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110653625A (en) * | 2019-05-27 | 2020-01-07 | 上海帮楚自动化科技有限公司 | Lead screw is to drawing slip table module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108581583B (en) | 2019-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106735412B (en) | The polyaxial multistation automatic drill hole milling assembly line of profile and its processing method | |
| KR20090040934A (en) | Structure for steel wire bending machine | |
| CN108581583B (en) | Ball-screw pre-stretching amount controllable adjustment device | |
| US4625531A (en) | Bending machine | |
| CN114985501A (en) | Multi-specification steel wire ring processing production line | |
| CN213496813U (en) | Cutting device is used in aluminium alloy production | |
| NO180225B (en) | Method and apparatus for producing continuous metal strips | |
| US20040055352A1 (en) | Method of continuous production of metal wires | |
| KR101984232B1 (en) | Apparatus for cutting wire | |
| US2743756A (en) | Method of forming strip metal stock into shapes for making annular members | |
| CN206732142U (en) | A kind of two-way lathe for rocking arm processing | |
| CN208947674U (en) | A kind of stringing device tied up for core | |
| CN209604496U (en) | One kind is from tension type telescopic belt guide plate | |
| CN209659068U (en) | A kind of guide rail installing mechanism of belt motor | |
| CN209424366U (en) | A kind of push rod bi-directional adjustable clamping device | |
| CN220717640U (en) | Wire cutting machine for net twine production | |
| CN107334218B (en) | Pull-grab line-assisting device | |
| TWI614067B (en) | Aluminum extrusion composite member, manufacturing method and manufacturing apparatus thereof | |
| CN211726948U (en) | Flattening mechanism for wire frame | |
| CN217165844U (en) | Thickness adjusting mechanism for copper wire production | |
| CN217571115U (en) | Support section bar for sawing machine | |
| CN2547452Y (en) | Linear cutting machine | |
| JP3829299B2 (en) | Correction piece adjusting device for press mold | |
| CN220264751U (en) | Height adjusting device of wire guide | |
| CN219966631U (en) | High-efficient horizontal band sawing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Controllable adjustment device for pre stretching amount of ball screw Effective date of registration: 20230912 Granted publication date: 20190820 Pledgee: Liangjiang branch of Chongqing Rural Commercial Bank Co.,Ltd. Pledgor: CHONGQING HONGGANG CNC MACHINE Co.,Ltd. Registration number: Y2023500000068 |