CN104440574B - Power-off protection device for grinding machine - Google Patents
Power-off protection device for grinding machine Download PDFInfo
- Publication number
- CN104440574B CN104440574B CN201410751594.XA CN201410751594A CN104440574B CN 104440574 B CN104440574 B CN 104440574B CN 201410751594 A CN201410751594 A CN 201410751594A CN 104440574 B CN104440574 B CN 104440574B
- Authority
- CN
- China
- Prior art keywords
- roller
- grinding machine
- oil cylinder
- brake pad
- wheel
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Abstract
The invention discloses a power-off protection device for a grinding machine. The power-off protection device comprises a wheel and a friction device. The wheel is provided with a central hole, an annular protrusion portion is arranged on each of two end faces of the wheel, the central hole is fixedly connected with a ball screw, and the annular protrusion portions are pivoted to supports. The friction device comprises a friction block and an oil cylinder, the friction block is mounted at the free end of a piston rod of the oil cylinder, the oil cylinder is communicated with an oil way of an energy accumulator, the piston rod of the oil cylinder is vertical, the friction block is positioned on one side of the wheel, and the plane where one lateral side, facing the wheel, of the friction block is located is tangent to the wheel. When the grinding machine is in abnormal shutdown, oil in the energy accumulator rushes into an oil cavity of the oil cylinder quickly to enable the piston rod to eject the friction block vertically, the friction block is tangent to the wheel, the wheel stops rotating, the friction block drives the wheel to rotate by a certain angle, the wheel drives the ball screw to rotate by a certain angle, the ball screw drives a feed carriage to return by a certain distance to stop, a workpiece is separated from a grinding head of a grinding wheel, and thus, workpiece scrapping or damage to the grinding machine is avoided.
Description
Technical field
The present invention relates to grinder structure technical field, in particular to the power-off of a kind of grinding machine
Protection device.
Background technology
Existing large-scale grinding machine, the general volume of workpiece processed is big, Heavy Weight, workpiece price
Expensive.Run into the situation of unexpected power-off in operation, the driving dress of the feeding planker of grinding machine
Put ball screw due to inertia, can with emery wheel grinding-head to the feeding of workpiece direction, or
Emery wheel grinding-head can rest on a certain fixed position grinding work piece, and both of which can cause workpiece
Scrap, more serious even can damage grinding machine.
Summary of the invention
Technical problem solved by the invention: existing large-scale grinding machine, runs in operation
The situation of power-off suddenly, the driving means ball screw of the feeding planker of grinding machine is former due to inertia
Cause, understands with emery wheel grinding-head to the feeding of workpiece direction, or emery wheel grinding-head can rest on a certain solid
Grinding work piece is put in location, and both of which can cause scrapping of workpiece, and more serious even can
Damage grinding machine.
The present invention provides following technical scheme: the power-off protection apparatus of a kind of grinding machine, including roller,
First support, rubbing device, accumulator, described roller offers centre bore, described roller two ends
Face sets annular protrusion, and described centre bore is fixing with ball screw to be connected, described annular protrusion
By bearing hinge joint on the first support, described first support is fixed in grinding machine frame, described
Rubbing device includes that brake pad, oil cylinder, described brake pad are arranged on the piston rod free end of oil cylinder,
Described oil cylinder and accumulator oil communication, the piston rod of described oil cylinder is vertical shape, described friction
Block is positioned at the side of roller, and described brake pad is vertical shape towards the one side of roller, described in rub
Cleaning block is tangent with roller towards the one side place plane of roller, and described brake pad is at oil cylinder piston
Under the driving of bar, it can be less than its one side towards roller towards the one side top of roller
The points of tangency of place plane and roller, described brake pad under the driving of cylinder piston rod, its face
The one side top of way roller also can be higher than it towards the one side place plane of roller and rolling
The points of tangency of wheel.
Accumulator generally individually installed by existing large-scale grinding machine, and accumulator is in hydropneumatic system
Plant energy savings device.It is in due course the energy conversion in system is compression energy or position
Can store, when system needs, again compression energy or potential energy are changed into hydraulic pressure or air pressure etc.
Can and discharge, again mend feed system.When system instantaneous pressure increases, it can be inhaled
Receive the energy of this part, normal to ensure whole system pressure.When grinding machine is shut down but still need to maintain
During certain pressure, the leakage of system can be compensated by accumulator with stop solution press pump, to keep system
The pressure of system.
By the present invention provide technique scheme, when grinding machine is properly functioning, brake pad towards
The one side top of roller is less than the phase of its one side place plane towards roller with roller
Point of contact, brake pad is positioned at the lower section of roller side, and so, brake pad just will not interfere with roller
Often run, i.e. will not interfere with the properly functioning of ball screw.When grinding machine disorderly closedown,
Oil in accumulator is flushed to rapidly in the oil pocket of oil cylinder, makes piston rod vertical jack-up brake pad, institute
State the brake pad one side towards roller tangent with roller.Under the effect of frictional force, roller is first
First stop operating (original roller along with ball screw rotate), afterwards, and upper along with brake pad
Rising, roller rotates (the direction of rotation phase of the direction of rotation and original roller under brake pad drives
Instead) certain angle, roller drives ball screw to rotate (direction of rotation and original ball wire
The direction of rotation of bar is contrary) certain angle, ball screw drive feeding planker rollback certain away from
From stopping, workpiece is made to separate with emery wheel grinding-head, in order to avoid causing scrapping or the damage of grinding machine of workpiece again
Bad.
As a modification of the present invention, described roller circumferential surface covers rubber layer, or described
Brake pad is towards covering rubber layer on the one side of roller, or roller circumferential surface and brake pad face
Rubber layer is all covered on the one side of way roller.
As a kind of explanation of the present invention, described rubbing device also includes coil tension spring, described in rub
Set a transverse bar on the side of cleaning block roller dorsad, the side of described oil cylinder roller dorsad also sets
One transverse bar, described coil tension spring is vertical shape, and one end of described coil tension spring is connected to friction
On the transverse bar of block, the other end of described coil tension spring is connected on the transverse bar of oil cylinder.Described
The brake pad that coil tension spring can be used for rising declines reset.
Further illustrating as the present invention, described rubbing device also includes being fixed on grinding machine frame
On the second support, described second support includes that two pieces of supporting plates, described two pieces of supporting plates are positioned at
The both sides of brake pad, the inner side of described two pieces of supporting plates is oppositely arranged a pair guide post；Described rub
The gathering sill matched with described guide post is offered on cleaning block two sides.
Further illustrating as the present invention, described rubbing device also includes base plate, described base plate
Being supported on bottom oil cylinder, described base plate is fixed in grinding machine frame.Offer at described base plate corner
Fixing hole, described base plate is threaded connection part and is fixed in grinding machine frame.Described threaded
Part secures a base plate in grinding machine frame by stretching into base plate fixing hole.
Further illustrating as the present invention, described roller centre bore and ball screw pass through keying
Fixed connection.
Accompanying drawing explanation
The present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 is the planar structure schematic diagram of the power-off protection apparatus of a kind of grinding machine of the present invention；
Fig. 2 is the perspective view of the power-off protection apparatus of a kind of grinding machine of the present invention；
Fig. 3 is the structural representation of roller in Fig. 1 or Fig. 2.
Symbol description in figure:
10-roller；101-centre bore；102-annular protrusion；
20-the first support；
30-rubbing device；31-brake pad；32-oil cylinder；320-oiler；33-stretches
Contracting spring；34-the second support；341-guide post；35-base plate；
40-bearing；
90-ball screw.
Detailed description of the invention
As it is shown in figure 1, the power-off protection apparatus of a kind of grinding machine, including 10, first, roller
Frame 20, rubbing device 30, accumulator.
As it is shown on figure 3, described roller 10 offers centre bore 101, described roller 10 both ends of the surface
If annular protrusion 102, described roller 10 circumferential surface covers rubber layer.As shown in Figure 1, Figure 2
Shown in, described centre bore 101 is connected by keying surely with ball screw 90, and described annular is dashed forward
Going out portion 102 to be articulated on the first support 20 by bearing 40, described first support 20 is fixed
In grinding machine frame.
As in figure 2 it is shown, described rubbing device 30 includes brake pad 31, oil cylinder 32, flexible bullet
Spring the 33, second support 34, base plate 35.Described brake pad 31 is arranged on the piston of oil cylinder 32
Bar free end, described oil cylinder 32 and accumulator oil communication, the piston rod of described oil cylinder 32 in
Vertically shape, described brake pad 31 is positioned at the side of roller 10.Described brake pad 31 is towards rolling
Wheel 10 one side be vertical shape, on this side cover rubber layer, this place, side plane with
Roller 10 is tangent.Described brake pad 31 is under the driving of oil cylinder 32 piston rod, and it is towards rolling
The one side top of wheel 10 can be less than it towards the one side place plane of roller 10 and roller
The points of tangency of 10, also can be higher than it towards one side place plane and the roller 10 of roller 10
Points of tangency.A transverse bar, described oil is set on the side of described brake pad 31 roller 10 dorsad
Also setting a transverse bar on the side of cylinder 32 roller 10 dorsad, described coil tension spring 33 is in vertically
Shape, one end of described coil tension spring 33 is connected on the transverse bar of brake pad 31, described flexible
The other end of spring 33 is connected on the transverse bar of oil cylinder 32.Described second support 34 is fixed
In grinding machine frame, described second support 34 includes two pieces of supporting plates, described two pieces of supporting plates
Being positioned at the both sides of brake pad 31, the inner side of described two pieces of supporting plates is oppositely arranged a pair guide post
341, match with guide post 341, described brake pad 31 two sides offer gathering sill.Institute
State base plate 35 and be supported on bottom oil cylinder 32, offer fixing hole at described base plate 35 4 jiaos, institute
State base plate 35 to be threaded connection part and be fixed in grinding machine frame.
When grinding machine is properly functioning, brake pad 31 is less than towards the one side top of roller 10
Its one side place plane towards roller 10 and the points of tangency of roller 10, brake pad 31
In the lower section of roller 10 side, so, brake pad 31 will not interfere with the normal fortune of roller 10
OK, i.e. will not interfere with the properly functioning of ball screw 90.When grinding machine disorderly closedown,
Oil in accumulator is flushed to rapidly in the oil pocket of oil cylinder 32 by oiler 320, makes piston rod
Vertically jack-up brake pad 31, described brake pad 31 is towards the one side of roller 10 and roller 10
Tangent.Under the effect of frictional force, roller 10 first stop operating (original roller 10 along with
Ball screw 90 rotates), afterwards, along with the rising of brake pad 31, roller 10 is at brake pad
31 drive lower rotation (direction of rotation is contrary with the direction of rotation of original roller 10) certain
Angle, roller 10 drives ball screw 90 to rotate (direction of rotation and original ball screw
The direction of rotation of 90 is contrary) certain angle, ball screw 90 drives feeding planker rollback certain
Distance stop again, make workpiece separate with emery wheel grinding-head, in order to avoid causing scrapping or grinding machine of workpiece
Damage.
Above content is only the better embodiment of the present invention, for the ordinary skill people of this area
Member, according to the thought of the present invention, the most all can change it
Place, this specification content should not be construed as limitation of the present invention.
Claims (5)
1. a power-off protection apparatus for grinding machine, including roller (10), the first support (20),
Rubbing device (30), accumulator, described roller (10) offers centre bore (101), described
Roller (10) both ends of the surface set annular protrusion (102), described centre bore (101) and ball
Screw mandrel (90) is fixing to be connected, and described annular protrusion (102) passes through bearing (40) pivot joint
On the first support (20), described first support (20) is fixed in grinding machine frame, described
Rubbing device (30) includes brake pad (31), oil cylinder (32), and described brake pad (31) is pacified
It is contained in the piston rod free end of oil cylinder (32), described oil cylinder (32) and accumulator oil communication,
It is characterized in that: the piston rod of described oil cylinder (32) is vertical shape, described brake pad (31)
Being positioned at the side of roller (10), described brake pad (31) is towards the one side of roller (10)
In vertical shape, described brake pad (31) is towards the one side place plane of roller (10) and rolling
Wheel (10) tangent, described brake pad (31) under the driving of oil cylinder (32) piston rod, its
One side top towards roller (10) can be less than its one side institute towards roller (10)
In the points of tangency of plane Yu roller (10), described brake pad (31) is at oil cylinder (32) piston
Under the driving of bar, it also can be higher than it towards roller towards the one side top of roller (10)
(10) one side place plane and the points of tangency of roller (10)；
Described roller (10) circumferential surface covers rubber layer；
Described brake pad (31) covers rubber layer on the one side of roller (10)；
Described rubbing device (30) also includes coil tension spring (33), described brake pad (31)
A transverse bar, described oil cylinder (32) roller dorsad (10) is set dorsad on the side of roller (10)
Side on also set a transverse bar, described coil tension spring (33) in vertical shape, described flexible bullet
One end of spring (33) is connected on the transverse bar of brake pad (31), described coil tension spring (33)
The other end be connected on the transverse bar of oil cylinder (32).
The power-off protection apparatus of a kind of grinding machine the most as claimed in claim 1, it is characterised in that:
Described rubbing device (30) also includes the second support (34) being fixed in grinding machine frame, institute
State the second support (34) and include that two pieces of supporting plates, described two pieces of supporting plates are positioned at brake pad (31)
Both sides, the inner side of described two pieces of supporting plates is oppositely arranged a pair guide post (341)；Described rub
The gathering sill matched with described guide post (341) is offered on cleaning block (31) two sides.
The power-off protection apparatus of a kind of grinding machine the most as claimed in claim 1, it is characterised in that:
Described rubbing device (30) also includes that base plate (35), described base plate (35) are supported on oil cylinder
(32) bottom, described base plate (35) is fixed in grinding machine frame.
The power-off protection apparatus of a kind of grinding machine the most as claimed in claim 3, it is characterised in that:
Offering fixing hole at described base plate (35) corner, described base plate (35) is threaded connection part
It is fixed in grinding machine frame.
The power-off protection apparatus of a kind of grinding machine the most as claimed in claim 1, it is characterised in that:
Described roller centre bore (101) is connected by keying surely with ball screw (90).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410751594.XA CN104440574B (en) | 2014-12-10 | 2014-12-10 | Power-off protection device for grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410751594.XA CN104440574B (en) | 2014-12-10 | 2014-12-10 | Power-off protection device for grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104440574A CN104440574A (en) | 2015-03-25 |
| CN104440574B true CN104440574B (en) | 2017-01-11 |
Family
ID=52887733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410751594.XA Expired - Fee Related CN104440574B (en) | 2014-12-10 | 2014-12-10 | Power-off protection device for grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104440574B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059708B (en) * | 2017-03-17 | 2018-11-27 | 泰兴市东城水处理工程有限公司 | A kind of bridge floor cleaning plant |
| CN109093517A (en) * | 2018-09-14 | 2018-12-28 | 湖北晶艺水晶有限公司 | A kind of protective device of water drilling grinding machine and automatic water drilling grinding machine |
-
2014
- 2014-12-10 CN CN201410751594.XA patent/CN104440574B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104440574A (en) | 2015-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Hongbin Inventor before: Yang Jianhua |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161202 Address after: 523000 Guangdong province Dongguan Songshan Lake high tech Industrial Development Zone Technology Park building 11, floor 2, 201D Applicant after: Dongguan Tianhe electromechanical Development Co. Ltd. Address before: 215106 Taiping Road, Taiping Street, Suzhou, Jiangsu, No. 11, No. Applicant before: Cheng Pin precision optical machinery Co., Ltd of Suzhou City |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171207 Address after: 215021 Jiangsu city in Suzhou Province town of Xiangcheng District Wong Tai Pan Yang Industrial Park Spring Road, No. 8-3 Patentee after: Suzhou Bonray Measure & Control Equipment Co., Ltd. Address before: 523000 Guangdong province Dongguan Songshan Lake high tech Industrial Development Zone Technology Park building 11, floor 2, 201D Patentee before: Dongguan Tianhe electromechanical Development Co. Ltd. |
|
| 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: 20170111 Termination date: 20181210 |