CN2856980Y - Impact testing machine - Google Patents

Impact testing machine Download PDF

Info

Publication number
CN2856980Y
CN2856980Y CN 200520120889 CN200520120889U CN2856980Y CN 2856980 Y CN2856980 Y CN 2856980Y CN 200520120889 CN200520120889 CN 200520120889 CN 200520120889 U CN200520120889 U CN 200520120889U CN 2856980 Y CN2856980 Y CN 2856980Y
Authority
CN
China
Prior art keywords
mentioned
shock
test machine
worktable
resistant test
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
CN 200520120889
Other languages
Chinese (zh)
Inventor
高冠勇
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.)
Mitac Computer Shunde Ltd
Original Assignee
Mitac Computer Shunde 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 Mitac Computer Shunde Ltd filed Critical Mitac Computer Shunde Ltd
Priority to CN 200520120889 priority Critical patent/CN2856980Y/en
Application granted granted Critical
Publication of CN2856980Y publication Critical patent/CN2856980Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The utility model discloses a shockresistance testing machine for performing a shockresistance testing to the samples. The shockresistance testing machine includes a box operating talbe and a shock system. The samples to be tested are fixed on the operating table, and the shock system does reciprocating movement continuously for performing a shockresistance testing with a certain force, frequency and times to the samples. A table which can move up and down is positioned on the box operating talbe, and the depth of the shock can be adjusted by lifting or lowering the table; The control system of the shock system is a programmable controller PLC and a precision sensor and a counter are also used, and a weight regulating block is positioned on the shock system. The shockresistance testing machine has a simple structure, a easy assembling process, a low cost, a convenient operating and a reliable performance.

Description

Shock-resistant test machine
Technical field
The utility model is particularly to a kind of test machine of carrying out shock-testing to small-sized electronic product relevant for a kind of shock-resistant test machine.
Background technology
Science and technology development, the raising of manufacturing level, the thing followed is the compact of product, and is same, the also progressively small and exquisite portability of consumer electronics product miscellaneous.But product is compact, but is to be prerequisite to have certain rigidity or intensity, otherwise, its just can not deal with may occur in people's use this product is produced the various situations of impacting compressing.
Adopt of current people fallen the rigidity intensity and the impact strength of testing small-sized consumer electronic product more, so the utility model wishes to develop a kind of simple and practical shock-resistant test machine.
Summary of the invention
The utility model provides a kind of shock-resistant test machine, and it is simple and practical, frequency that can be certain, and certain dynamics is carried out shock-testing to specimen, and after the impact number of times reaches predefined number of times, can stop shock-testing voluntarily.
For reaching above-mentioned purpose, this shock-resistant test machine comprises block worktable and impact system two parts.
This block worktable comprises fixing base and worktable moving up and down.
This is provided with one first cover above base, be equipped with in order to the rule of sign worktable with respect to this substructure height in this first cover front, simultaneously worktable also is provided with one second cover, this second cover be coated at this first cover and relatively this first cover move up and down.Also be provided with threaded rod on this base, this threaded rod is supported by two clutch shaft bearings, and this threaded rod is provided with movable block in this two clutch shaft bearings center section, in addition, this threaded rod wherein an end to stretch out this base cover outer and connect a control hand wheel.This movable block and this screw rod bolt, both can relatively move, and this movable block articulates a first connecting rod again, and this first connecting rod other end then is articulated in above-mentioned worktable lower central position.Rotate this handwheel, this movable block is with respect to this screw motion, this movable block interlock this first connecting rod on it, this first connecting rod acts on this worktable again, and this worktable since the mutual socket of this base and this worktable cover concern and can only move up and down.In order to guarantee the steady of this movable block, this movable block also is provided with the axis of guide, and this movable block is socketed on this axis of guide, and these axis of guide two ends are provided with back-up block.
Be provided with guide pin bushing around on this worktable, and also be provided with two parallel U type guide rails on it, be provided with two U type anchor clamps base plates that cooperate with it on this U type guide rail again, include locating shaft and thread spindle on this anchor clamps base plate, this locating shaft and thread spindle are provided with an anchor clamps upper plate, specimen is positioned between anchor clamps upper plate and the anchor clamps lower plate, locks this specimen by regulating the fixed by nut that is provided with on the thread spindle.
And impact system comprises fixed part and movable part.This impact system is provided with some pillars, and this pillar is provided with step, and a fixed head is arranged at this pillar step part, also is provided with fixed hub on this pillar, and this axle sleeve is used for fixing this fixed head.This column bottom is fixed on the base of above-mentioned block worktable, and some thick crossbeams are then being supported at its top.
This crossbeam is provided with guide pillar, and a portable plate is socketed on this guide pillar, and this guide pillar also is provided with the flexible member and the nut of spring and so on, and this flexible member can play the effect of damping.This also is provided with a weight regulating block and a back up pad above portable plate.
Also be provided with a motor on this portable plate, this back up pad is used for fixing this motor.The main shaft of this motor is connected with an other axle by a shaft coupling, and the other end that this axle passes one second bearing is provided with one first flywheel, and this first flywheel is connected to one second flywheel that is arranged at below the portable plate by a belt.This second flywheel connects one first power wheel by one the 3rd bearing that is arranged at equally below the portable plate, and this first power wheel connects one second power wheel by a stationary shaft, and this second power wheel is by one the 4th bearings that is arranged at below the portable plate.
This first, second power wheel is by this stationary shaft second connecting rod that is pivoted, this second connecting rod other end then articulates a contiguous block, and this contiguous block fixedly connected impacts main shaft, this impact main shaft passes this axle sleeve that is provided with on the said fixing plate, and this impact main shaft stretches out the fixedly connected ram hammer of end of the below of fixed head.
In addition, the position of approaching above-mentioned main shaft on the fixed head is provided with a proximity transducer, and this also is provided with a counter, a motor driver, a control system and a Switching Power Supply above fixed head simultaneously.This control system electrically connects this counter, driver and Switching Power Supply, and this motor driver electrically connects above-mentioned motor simultaneously.This control system is controlled this motor speed by this motor driver, this sensor sensing descends once to above-mentioned contiguous block, just feed back to this control system once, after this contiguous block decline number of times equals this counter set point number at last, this counter can feed back a signal and give this control system, thereby this control system can be sent instruction, stops the rotation of this motor.
Thus, the fixed part of this impact system comprises some pillars, some crossbeams, one fixed head and be arranged at some machineries or electric component on this fixed head, the movable part of this impact system then comprise portable plate and are arranged at machinery or electric component on this portable plate.This impact system impacts the weight that is about to this movable part when touching this specimen and is converted into impulsive force to this specimen, so the weight regulating block on this portable plate of adjusting, the i.e. impulsive force of this impact system of scalable.
Adopt technique scheme, the shock-resistant test machine that the utility model provides has such beneficial effect, that is:
One, simple in structure, make assembling easily, and cost is lower;
Two, the specimen of suitable multiple size, and location and convenient fixing;
Three, worktable can move up and down, and can adapt to the different specimen of multiple thickness;
Four, conveniently adjusted impulsive force, frequency of impact and number of times.
Description of drawings
Fig. 1 is a shock-resistant test machine overall schematic of the present utility model.
Fig. 2 is the cut-away view of the block worktable of shock-resistant test machine.
Fig. 3 is the impact system inner structure front elevation of shock-resistant test machine.
Fig. 4 is the impact system inner structure side view of shock-resistant test machine.
Fig. 5 is the electric component signal connection diagram of shock-resistant test machine.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Figure 1 shows that shock-resistant test machine overall schematic of the present utility model, this shock-resistant test machine comprises block worktable 100 and impact system 300 two parts.This block worktable 100 is provided with a base 101, and is covered with one first cover 102 on the base 101, and these first cover, 102 surfaces have a rule 103 and its side to be provided with a handwheel 104.This block worktable 100 also is provided with a worktable 200, and this worktable 200 is covered with one second cover 201 equally, and this first cover 102 and this second cover 201 form sockets relation, and this second cover 201 can prolong this first cover 102 and moves up and down.
Regulate this handwheel 104, this worktable 200 will prolong this first cover 102 together with this second cover 201 and move up and down, and expose to the part of this second cover 201 by this rule 103, and the operator can judge height of this worktable 200.
Figure 2 shows that the cut-away view of the block worktable 100 of shock-resistant test machine.The base 101 of this block worktable 100 is provided with a threaded rod 110, two clutch shaft bearings 111, this threaded rod 110 is supported by this two clutch shaft bearing 111, this threaded rod 110 partly is provided with a movable block 112 in the middle of this two bearing 111, and this threaded rod 110 stretches out first cover, 102 outer end portion shown in Figure 1 and also connects a handwheel 104.In order to guarantee the steady of movable block 112, in the present embodiment, this movable block 112 also is equipped with two axis of guides 113 in the both sides of threaded rod 110 part, and four back-up blocks 114 support this two axis of guide 113 on the base 101 by being arranged at.This movable block 112 also articulates a first connecting rod 115, and these first connecting rod 115 other ends then are articulated in the lower central position of worktable 200.
Regulate this handwheel 104, this movable block 112 promptly can prolong threaded rod 110 and move, so this this first connecting rod 115 of movable block 112 interlocks and this worktable 200, yet because the socket of first cover 102 shown in Figure 1 and second cover 201 relation, this worktable 200 can only move up and down.
In the present embodiment, be equipped with four guide pin bushings 210 all around on this worktable 200, also be provided with two parallel U type guide rails 211 on this worktable 200, also be embedded with the two U type anchor clamps base plates 212 that cooperate with it on this two U type guide rail 211.These anchor clamps base plate 212 arranged outside have threaded hole, cooperate by the threaded rod 213 with the side, can regulate the distance between this two anchor clamps base plate 212, and regulate for convenience, and the end that this threaded rod 213 passes a back-up block 214 is provided with one handle 215.Also be provided with a locating shaft 216 and two thread spindles 217 on the anchor clamps base plate 212, this locating shaft 216 and thread spindle 217 are provided with anchor clamps upper plate 218.One specimen 219 is positioned between this anchor clamps base plate 212 and the anchor clamps upper plate 218, regulates the nut 220 that is provided with on the thread spindle 217 and can firmly lock this specimen 219.
Fig. 3, Figure 4 shows that impact system 300 inner structures of shock-resistant test machine face and side view.In the present embodiment, adopt a stepper motor 351 as the motor of impact system power, the control system of controlling this stepper motor 351 then adopts Programmable Logic Controller 373.In the present embodiment, this impact system 300 is provided with four pillars 310 corresponding to this four guide pin bushing 210 shown in Figure 2, and these pillar 310 1 ends pass this guide pin bushing 210 shown in Figure 2 and are fixed on this base 101 shown in Figure 2.In addition, this pillar 310 is provided with step, and a fixed head 320 is arranged at the step part of this pillar 310, also is provided with axle sleeve 330 on this pillar 310, and this axle sleeve 330 is firmly locked this fixed head 320 on this pillar 310.These pillar 310 other ends are supporting a thick crossbeam 340, and in present embodiment, this four support column 310 is supporting two thick crossbeams 340 altogether.
This crossbeam 340 is provided with guide pillar 341, one portable plates 342 pivot bush units on this guide pillar 341, and this guide pillar 341 also is provided with the flexible member 343 and the nut 344 of spring and so on portable plate 342.Also be provided with weight regulating block 345 and back up pad 346 on this portable plate 342.
This stepper motor 351 is arranged on this portable plate 342 and by this back up pad 346 and fixes.These stepper motor 351 main shafts connect a rotating shaft by a shaft coupling 352, the other end that one second bearing 353 is passed in this rotating shaft is provided with one first flywheel 354, and this first flywheel 354 is arranged at one second flywheel 356 of these portable plate 342 bottoms by a belt 355 connections one.This second flywheel 356 connects one first power wheel 361 by the 3rd bearing 357 that is arranged at these portable plate 342 bottoms.This first power wheel 361 is by fixedly connected one second power wheel 362 of stationary shaft, and this second power wheel 362 is supported by second bearing 358 that is arranged at these portable plate 342 bottoms.
In present embodiment, this first power wheel 361 and second power wheel 362 articulate a ㄇ type second connecting rod 363 by this stationary shaft, these second connecting rod 363 female parts then articulate a contiguous block 364, and this contiguous block 364 fixedly connected one impacts main shaft 365, this impact main shaft 365 passes an axle sleeve 321 that is arranged on the fixed head 320, and this impact main shaft 365 stretches out the fixedly connected ram hammer 366 of end of the below of this fixed head 320.
So, when this stepper motor 351 rotates, by above-mentioned a series of mechanical parts will drive this first power wheel 361, second power wheel 362 is made circular motion, this first power wheel 361, second power wheel 362 will drive this second connecting rod 363 that articulates thereon again and move together, 321 pairs on this axle sleeve should impact the restriction of main shaft 365 yet this contiguous block 364 and this impact main shaft 365, so can only make rectilinear motion up and down.Ram hammer 366 adopts the stronger material of rigidity to make, when this ram hammer 366 impacts specimen 219, if this moment specimen 219 rigidity a little less than, then this specimen 219 will deform; If this moment, specimen 219 rigidity were stronger, then the load bearing component of this ram hammer 366 promptly this portable plate 342 relatively this crossbeam 340 move upward, to protect product, this flexible member 343 plays the effect of damping.
In addition, whether approaching the position of approaching this impact main shaft 365 on this fixed head 320 be provided with one in order to responding to this contiguous block 364 proximity transducer 371, and when this contiguous block 364 drops to extreme lower position, this sensor 371 will be sensed.And also be provided with a counter (not shown), a motor driver 372, a Programmable Logic Controller 373 and a Switching Power Supply 374 simultaneously on this fixed head 320.This Programmable Logic Controller 373 electrically connects this counter, motor driver 372 and Switching Power Supply 374, and simultaneously, this driver 372 electrically connects above-mentioned stepper motor 351, sees also Fig. 5.
When this shock-resistant test machine is worked, this Programmable Logic Controller 373 sends an action command and gives this motor driver 372 to drive this stepper motor 351, this stepper motor 351 drives this ram hammer 366 by above-mentioned a series of mechanical parts and impacts this specimen 219, this first power wheel 361 and second power wheel 362 rotate a week, and this ram hammer 366 just impacts once.When this ram hammer 366 touches this specimen 219, this contiguous block 364 drops to extreme lower position, this sensor 371 is just sensed this contiguous block 364 once, and this induced signal fed back to this Programmable Logic Controller 373, this Programmable Logic Controller 373 is just given count signal of this counter, when these ram hammer 366 impact number of times reach the predefined number of times of this counter, this counter will feed back a signal and give this Programmable Logic Controller 373, at this moment, this Programmable Logic Controller 373 can send a halt instruction and gives this motor driver 372 to stop this stepper motor 351.
The utility model structure is simple in structure, makes assembling and is easier to, and is fit to the specimen of multiple size, and scalable impulsive force, frequency of impact and impact number of times, has very high practicality.

Claims (11)

1. shock-resistant test machine, comprise block worktable and impact system, this block worktable comprises the liftable worktable of relative this base with of a base, this impact system comprises fixed part and the movable part that is arranged on this fixed part, and this fixed part is fixed on this base, it is characterized in that:
Described worktable includes two U type guide rails and is embedded thereon and two scalable that cooperate the with it U type anchor clamps base plate of distance each other, and this anchor clamps base plate is provided with in order to clamp the anchor clamps upper plate of specimen, and this worktable also is covered with one second cover;
Described base comprises screw rod and supports two clutch shaft bearings of this screw rod, this screw rod partly is provided with a contiguous block between among this two clutch shaft bearing, this contiguous block articulates a first connecting rod, the other end of this first connecting rod then is articulated in above-mentioned worktable lower central position, in addition, this base also is covered with one first cover, and this first cover and above-mentioned second cover form the socket that relative this base of the above-mentioned worktable of restriction only can vertical lifting and concern;
Described movable part comprises portable plate and is arranged at motor on this portable plate, one first flywheel, one second flywheel, one first power wheel, one second power wheel, one second connecting rod, one contiguous block, one impacts a main shaft and a ram hammer, this stepper motor, first flywheel, second flywheel, first power wheel, second power wheel forms drive connection successively, this first power wheel, the second power wheel pivot connects this second connecting rod, this second connecting rod other end then pivot connects this contiguous block, this contiguous block is fixedly connected should to impact main shaft one end, and this impact main shaft other end connects this ram hammer;
Described fixed part comprises some pillars, some crossbeams and a fixed head, this pillar is fixed on the above-mentioned base, this crossbeam is fixedly installed on this post top portion, this pillar is provided with in order to the step of fixing this fixed head and axle sleeve, be equipped with an axle sleeve corresponding to above-mentioned impact main shaft on this fixed head, the above-mentioned impact main shaft of this axle sleeve socket, also be provided with a control system and a motor driver in order to control above-mentioned motor on this fixed head, one Switching Power Supply, one proximity transducer, one counter, this control system electrically connects this motor driver, this Switching Power Supply, this sensor and this counter, in addition, this motor driver electrically connects above-mentioned motor.
2. shock-resistant test machine according to claim 1, it is characterized in that: described anchor clamps base plate is provided with locating shaft and thread spindle, above-mentioned anchor clamps upper plate is movably set on this locating shaft and the thread spindle, and thread spindle is provided with the nut of this anchor clamps upper plate of locking.
3. shock-resistant test machine according to claim 1, it is characterized in that: described anchor clamps plate outer side face be provided with threaded hole and match with this threaded hole in order to regulate the threaded rod of relative distance between this anchor clamps base plate, also be provided with on the above-mentioned worktable in order to supporting the back-up block of this threaded rod, and this threaded rod one end is provided with one handle.
4. shock-resistant test machine according to claim 1 is characterized in that: described first cover is provided with a rule.
5. shock-resistant test machine according to claim 1 is characterized in that: also be equipped with the axis of guide on the described contiguous block, also be provided with on the above-mentioned base in order to support the back-up block of this axis of guide.
6. shock-resistant test machine according to claim 1 is characterized in that: described crossbeam is provided with guide pillar, and above-mentioned portable plate is movably set on this crossbeam, and also is provided with flexible member and nut on this guide pillar.
7. shock-resistant test machine according to claim 1 is characterized in that: also be provided with the weight regulating block on the described portable plate.
8. shock-resistant test machine according to claim 1 is characterized in that: also be provided with the back up pad in order to fixing above-mentioned motor on the described portable plate.
9. shock-resistant test machine according to claim 1 is characterized in that:
Described portable plate is provided with in order to the shaft coupling that connects above-mentioned motor and above-mentioned first flywheel and second bearing;
Described portable plate is provided with the belt of above-mentioned first flywheel of connection and above-mentioned second flywheel;
Described portable plate is provided with second bearing that supports above-mentioned second flywheel, the first power wheel main shaft; And
Also be provided with the 3rd bearing that supports the above-mentioned second power wheel main shaft on the described portable plate.
10. shock-resistant test machine according to claim 1 is characterized in that: described control system is a Programmable Logic Controller.
11. shock-resistant test machine according to claim 1 is characterized in that: described motor is a stepper motor.
CN 200520120889 2005-12-22 2005-12-22 Impact testing machine Expired - Fee Related CN2856980Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520120889 CN2856980Y (en) 2005-12-22 2005-12-22 Impact testing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520120889 CN2856980Y (en) 2005-12-22 2005-12-22 Impact testing machine

Publications (1)

Publication Number Publication Date
CN2856980Y true CN2856980Y (en) 2007-01-10

Family

ID=37600284

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520120889 Expired - Fee Related CN2856980Y (en) 2005-12-22 2005-12-22 Impact testing machine

Country Status (1)

Country Link
CN (1) CN2856980Y (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494943A (en) * 2011-10-25 2012-06-13 西安交通大学 Adjustable test fixture
CN102650562A (en) * 2011-02-28 2012-08-29 鸿富锦精密工业(深圳)有限公司 Button durability testing machine
CN103162925A (en) * 2011-12-15 2013-06-19 海洋王照明科技股份有限公司 Enclosure frame structure used on vibration testing device and vibration testing device
CN103439176A (en) * 2013-09-06 2013-12-11 苏州上洋机电科技有限公司 Wall surface intensity detection device for ground brush
CN104280300A (en) * 2013-07-08 2015-01-14 波音公司 Modal Impact Testing Assembly, System and Method
CN107389443A (en) * 2017-09-04 2017-11-24 苏交科集团股份有限公司 The sample support device of static load anchoring test
CN107976376A (en) * 2017-12-22 2018-05-01 郑州中南杰特超硬材料有限公司 A kind of cBN/ diamond intensities Apparatus for Impacting at low-temp control system
CN109470458A (en) * 2018-10-25 2019-03-15 陈动文 A kind of combined key-press test machine
CN109533918A (en) * 2018-11-12 2019-03-29 中机试验装备股份有限公司 A kind of rotation translation device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102650562A (en) * 2011-02-28 2012-08-29 鸿富锦精密工业(深圳)有限公司 Button durability testing machine
CN102650562B (en) * 2011-02-28 2014-12-10 鸿富锦精密工业(深圳)有限公司 Button durability testing machine
CN102494943A (en) * 2011-10-25 2012-06-13 西安交通大学 Adjustable test fixture
CN103162925A (en) * 2011-12-15 2013-06-19 海洋王照明科技股份有限公司 Enclosure frame structure used on vibration testing device and vibration testing device
CN104280300A (en) * 2013-07-08 2015-01-14 波音公司 Modal Impact Testing Assembly, System and Method
CN104280300B (en) * 2013-07-08 2018-10-30 波音公司 Mode shock-testing components, systems and methods
CN103439176A (en) * 2013-09-06 2013-12-11 苏州上洋机电科技有限公司 Wall surface intensity detection device for ground brush
CN107389443A (en) * 2017-09-04 2017-11-24 苏交科集团股份有限公司 The sample support device of static load anchoring test
CN107976376A (en) * 2017-12-22 2018-05-01 郑州中南杰特超硬材料有限公司 A kind of cBN/ diamond intensities Apparatus for Impacting at low-temp control system
CN109470458A (en) * 2018-10-25 2019-03-15 陈动文 A kind of combined key-press test machine
CN109533918A (en) * 2018-11-12 2019-03-29 中机试验装备股份有限公司 A kind of rotation translation device
CN109533918B (en) * 2018-11-12 2021-03-02 长春汇凯科技有限公司 Rotary translation equipment

Similar Documents

Publication Publication Date Title
CN2856980Y (en) Impact testing machine
CN201567183U (en) Linear reciprocating type lifting device
CN110978019B (en) Manipulator structure capable of realizing double-mode switching of adsorption and clamping and robot
CN102890000A (en) Planar continuous loading testing device for numerical-control movable worktable
CN102642204A (en) Alternating-current servo direct drive type series-parallel composite robot
CN211103267U (en) Reciprocating telescopic polishing machine
CN1899761A (en) Abutment module
CN111906946A (en) Ceiling drilling robot for furred ceiling
CN2743829Y (en) Vibration test stand for electronic and electrical products
CN105643167B (en) Conical steel pipe floor welding robot
CN213780299U (en) Keyboard test machine and test equipment
CN200967086Y (en) Vertical lathe/milling machine
CN202061777U (en) Three-dimensional precision worktable
CN111390546A (en) Three-degree-of-freedom fastening device
CN108789572A (en) Blanking device
CN107552670B (en) Stamping feeding robot
CN100339194C (en) Microminiature mobile robot system oriented to precise operation of micro electromechanical system
CN115922776A (en) Five pile up neatly machines people
CN214653297U (en) Double-column type automobile lifter with reversing screw drive universal joint
CN2442900Y (en) Pit movable automobile jack
CN212240326U (en) Inner hole polishing machine tool
CN110774017B (en) Drilling machine for drilling porous workpiece
CN107052882B (en) Double-wire rod seesaw type feeding mechanism for full-automatic balance correction equipment
KR20060095589A (en) Trans portation equipment of up and down
CN214264676U (en) Machining auxiliary precision machining fixing platform

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070110

Termination date: 20111222