CN102744556A

CN102744556A - Safety protection device

Info

Publication number: CN102744556A
Application number: CN2011100955714A
Authority: CN
Inventors: 汤中田
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2011-04-18
Filing date: 2011-04-18
Publication date: 2012-10-24
Also published as: TWI498501B; TW201243205A

Abstract

The invention relates to a safety protection device which is used for being installed on a machine tool so as to prevent the accidental movement of a processing component of the machine tool from causing injury to an operator or a workpiece. The safety protection device comprises an installing mechanism and a driving mechanism fixed on the installing mechanism. The safety protection device also comprises a sensor arranged on the machine tool, a link mechanism linked with the driving mechanism and a blocking mechanism arranged at one end of the link mechanism, wherein the sensor is used for detecting and also monitoring the processing component in real time. When the accidental movement of the processing component is monitored by the sensor, the driving mechanism is controlled to drive the link mechanism to work so as to drive the blocking mechanism to block the continuous movement of the processing component. According to the safety protection device, the condition that the operator or the workpiece is injured is effectively prevented; moreover, when the safety protection device is used, the safety protection device does not need to be operated or held by the operator, so that manpower is saved; and meanwhile, the production efficiency is enhanced.

Description

Safety device

Technical field

The present invention relates to a kind of safety device, relate in particular to a kind of being applied on the lathe to prevent in the course of work operator or workpiece to be caused the safety device of damage because of the processing component accidental movement.

Background technology

Use a large amount of machining tools for saving time and saving human cost regular meeting in the commercial production, such as punch press, forging bed etc.Set up on these process equipments and be equipped with dynamic model (being drift) and cover half, wherein dynamic model is a processing component.During work, earlier to be processed is arranged on the cover half, utilizes dynamic model to the cover half motion and impact to be processed again, thereby accomplish the processing of workpiece.When these equipment are carried out artificial material loading or blanking; Because the fault of faulty operation or machine self; Regular meeting the processing component accidental movement occurs and moves to the workpiece place and the application of force, makes to have little time to hide the operator who carries out material loading or blanking operation, thereby causes casualties and the workpiece damage.

In order to prevent the generation of these accidents; Usually be employed on operator's wrist be a Sheng Suo ﹐ with processing component interlock when the processing component accidental movement or when moving to the workpiece place, thereby can under the drive of processing component, avoid casualties and workpiece to damage the timely La hold of operator's hand ﹐ with the rope of its interlock.Yet, the not enough hommization of this safeguard procedures, and pull the operator easily.For more humane, a kind of clamp-type safety device has appearred, and this clamp-type safety device needs operator's hand to hold clamp gripping workpiece when using, and makes production efficiency lower.

Summary of the invention

In view of the foregoing, be necessary to provide a kind of safety device that can prevent effectively that operator or workpiece from damaging and helping enhancing productivity.

A kind of safety device; Be used to be installed on the lathe and operator or workpiece caused damage with the processing component accidental movement that prevents lathe; This safety device comprises mechanism for mounting, is fixed in the driving mechanism on the mechanism for mounting; This safety device also comprise the sensor that is arranged on the lathe, with the linkage of driving mechanism interlock and the blocking mechanism that is arranged at linkage one end; Sensor is used for detecting and monitors processing component in real time, and when sensor monitored the processing component accidental movement, the work of control drive mechanism linkage stopped that to drive blocking mechanism processing component continues motion.。

This safety device stops processing component through the work of control drive mechanism linkage to drive blocking mechanism, thereby has prevented that effectively operator or workpiece from sustaining damage.In addition, do not need the operator to operate on it or grip when using, saved manpower, improved production efficiency simultaneously owing to it.

Description of drawings

Fig. 1 is the schematic perspective view of the safety device of embodiment of the present invention when being in off working state.

Fig. 2 is the schematic perspective view of safety device shown in Figure 1 when in running order.

Fig. 3 is the perspective exploded view of safety device shown in Figure 1.

The main element symbol description

Safety device	100
		Dynamic model	101
Cover half	102
		Mechanism for mounting	10
Driving mechanism	20
		Sensor	30
Linkage	40
		Blocking mechanism	50
Installing plate	11
		Screw hole	111、121
Mounting hole	112
		Fixed head	12
Screwed hole	122
		Support plate	13
Through hole	131
		Tapped through hole	132
Screw	133
		The first installing part	14
First connecting portion	141
		First installing department	142
First installation hole	1421
		The second installing part	15
Second connecting portion	151
		Second installing department	152
Second installation hole	1521
		Actuator	21
Driving shaft	22
		Driven shaft	23
Radial direction through hole	231
		Coupling	24
First pivot assembly	25
		Lasso	251、453
Bearing	252、452
		Retainer ring	253
Fastener	254、454
		The anti-avulsion part	255
Driving lever	41
		First pivoting hole	411
The spline hole	412
		Stepped hole	415
Follower lever	42
		Support bar	43
Second pivot assembly	44
		Pivot	441
The 3rd pivot assembly	45
		Pivotal part	451
The holding section	4541
		Securing member	46
Block	51
		Bolster	52

The following specific embodiment will combine above-mentioned accompanying drawing to further specify the present invention.

The specific embodiment

See also Fig. 1 and Fig. 2, safety device 100 can be applicable to forge on the machining tools such as bed, punch press to prevent that the processing component accidental movement because of machining tool causes damage to operator or workpiece in the course of work.Safety device 100 comprises mechanism for mounting 10, is fixed in the driving mechanism 20 on the mechanism for mounting 10, be used to detect processing component whether accidental movement sensor 30, with the linkage 40 of driving mechanism 20 interlocks and the blocking mechanism 50 that is arranged at linkage 40 1 ends.In this embodiment, said lathe is for forging bed, and it comprises dynamic model 101 (being drift) and cover half 102.Dynamic model 101 is a processing component, and workpiece (figure does not show) is arranged on the cover half 102.

Mechanism for mounting 10 is used for safety device 100 is fixed at machining tools such as forging bed, punch press, and it comprises installing plate 11, fixed head 12, support plate 13, is arranged at intervals on the fixed head 12 and is positioned at first of support plate 13 tops installs the part 14 and the second installing part 15.

Please consult Fig. 3 in the lump; Installing plate 11 is the rectangle plate body; Offer a plurality of screw holes 111 along the approximate mid-section position of its length direction and offer a plurality of mounting holes 112 spaced reciprocally along the both sides of its length direction; Mounting hole 112 towards consistent with the length direction of installing plate 11, pass mounting hole 112 through screw (figure do not show) and can installing plate 11 be fixed.

Fixed head 12 is the rectangle plate body, parallel posting and fixing on installing plate 11.The length direction of fixed head 12 is identical with installing plate 11 length directions.Offer with the corresponding many group mounting holes 121 of screw hole 111 on the fixed head 12 and on a sidewall of its length direction, offer a plurality of screwed holes 122.Many group mounting holes 121 along the length direction of fixed head 12 be provided with at interval and the direction of mounting hole 121 vertical with the length direction of fixed head 12.Through screw (figure does not show) is arranged in the screw hole 111 on mounting hole 121 and the installing plate 11 and can fixed head 12 be fixed on the installing plate 11.

Offer two through holes 131 on support plate 13 and fixed head 12 vertical settings and its.The length direction of support plate 13 is consistent with the length direction of fixed head 12 and offer a plurality of and screwed hole 122 corresponding tapped through holes 132 in the one of which side, can support plate 13 be fixed on the fixed head 12 through screw 133 being arranged in tapped through hole 132 and screwed hole 122.

The first installing part 14 and second installing part 15 compartment of terrain that is parallel to each other are arranged on the fixed head 12, and wherein the first installing part 14 comprises first connecting portion 141 that is used for being connected with fixed head 12 and convexedly stretches in first installing department 142 on first connecting portion 141.First connecting portion, 141 parallel posting and fixing on fixed head 12.In this embodiment, first installing department 142 is two and for laterally arranging, and protrudes out out and be respectively adjacent to the both sides of fixed head 12 length directions respectively relatively from the both sides of first connecting portion 141.Connect relatively respectively on two first installing departments 142 and offer first installation hole 1421.

Second installing part 15 structures are identical with the first installing part 14, and it comprises on second connecting portion 151 and two 152, two second installing departments 152 of second installing department that laterally arrange that respectively perforation relatively offers second installation hole 1521.

Driving mechanism 20 comprises successively the actuator 21 that connects, driving shaft 22, driven shaft 23, Coupling 24 and driven shaft 23 is installed in first pivot assembly 25 on the first installing part 14.

In this embodiment, actuator 21 is a servomotor.Driving shaft 22 from actuator 21 1 ends protrude out out, driven shaft 23 drives by driving shaft 22, thereby Coupling 24 is for circular ring and be socketed in driving shaft 22 and with driven shaft 23 junctions driven shaft 23 be fixed on the driving shaft 22.Driven shaft 23 is arranged in two first installation holes 1421 of the first installing part 14 away from an end of actuator 21, and its end extends in the through hole 131 of support plate 13.Driven shaft 23 offers radial direction through hole 231 between two first installing departments 142.

First pivot assembly 25 comprises lasso 251, bearing 252, retainer ring 253, fastener 254 and the anti-avulsion part 255 that is installed in driven shaft 23 ends.

In this embodiment, lasso 251, bearing 252 and retainer ring 253 are two, and lasso 251 is a circular ring.Two lassos 251 all are sheathed on the driven shaft 23 and lay respectively in two first installing departments 142.Two bearings 252 fixed cover respectively are located on two lassos 251, its outer ring respectively with two first installing departments 142 on the sidewall of first installation hole 1421 fix.Two retainer rings 253 are installed in towards the both sides of first installing department 142 of driving shaft 22 1 ends through screw, in order to bearing 252 is wherein fixed, prevent it and from first installation hole 1421, deviate from.

Fastener 254 is for ringent torus and be installed in first installation hole 1421 away from first installing department 142 of driving shaft 22 1 ends, and the one of which side supports bearing 252 opposite sides and supports anti-avulsion part 255.Anti-avulsion part 255 fixed covers are located at the end of driven shaft 23, deviate from from first installation hole 1421 in order to prevent bearing 252 and fastener 254.

Sensor 30 is installed on the sidewall of forging bed, is used for detecting and monitoring dynamic model 101 accidental movement whether in real time.In this embodiment, sensor 30 is a crankshaft position sensor, and when detecting dynamic model 101 in top dead centre time of staying during less than 0.3 second, sensor 30 is judged to be it unusual and signal is transferred to actuator 21 to start safety device 100.

Linkage 40 comprises the driving lever that laterally arranges 41 and follower lever 42, be installed in the support bar 43 of driving lever 41 and follower lever 42 1 ends, be used for follower lever 42 is installed in second pivot assembly 44 on the second installing part 15, is used for support bar 43 is articulated on driving lever 41 and the follower lever 42 the 3rd pivot assembly 45, securing member 46.

One end of driving lever 41 is installed between two first installing departments 142, this end offer first pivoting hole 411 and first pivoting hole, 411 sidewalls offer with driven shaft 23 on radial direction through hole 231 corresponding spline holes 412.Thereby driving lever 41 is sheathed on the driven shaft 23 and through securing member 46 is arranged in through first pivoting hole 411 and realizes in spline hole 412 and the radial direction through hole 231 being connected with the spline of driven shaft 23.In this embodiment, securing member 46 is a screw.

One end of follower lever 42 is installed between two second installing departments 152, and this end offers second pivoting hole (figure does not show).

Second pivot assembly 44 and first pivot assembly, 25 structures are similar, and its difference is that second pivot assembly 44 does not have driven shaft 23, but comprise a pivot 441 that is arranged on the second installing part 15.Pivot 441 is arranged in second installation hole 1521 on two second installing departments 152.

Follower lever 42 is realized and being rotationally connected of pivot 441 through second pivoting hole (figure do not show) being sheathed on the position of pivot 441 between two second installation holes 1521.Follower lever 42 can be with respect to 15 rotations of the second installing part under the drive of driving lever 41.

Driving lever 41 and follower lever 42 all offer stepped hole 415 away from an end of the first installing part 14 and the second installing part 15; Support bar 43 is arranged at driving lever 41 and follower lever 42 away from first installing department 142 and second installing department, 152 1 ends, and its horizontal level is roughly concordant with cover half 102.Offer two the 3rd installation holes (figure does not show) on the support bar 43, two the 3rd installation holes (figure does not show) are corresponding one by one with two stepped holes 415.

The 3rd pivot assembly 45 comprises pivotal part 451, bearing 452, lasso 453 and fastener 454; Wherein pivotal part 451 is two; Each pivotal part 451 is arranged in corresponding one the 3rd installation hole and the said stepped hole, thereby support bar 43 is articulated on driving lever 41 and the follower lever 42.Support bar 43 can move and receive the restriction of follower lever 42 under the drive of driving lever 41.In this embodiment, driving lever 41, follower lever 42 and support bar 43 are aluminum alloy materials.

Bearing 452 and lasso 453 are sheathed on the pivotal part 451 successively, and the sidewall of bearing 452 outer rings and a said through hole fixes, and its inner ring and pivotal part 451 fix.Lasso 453 1 ends support bearing 452, and the other end is arranged in the stepped hole 415.Fastener 454 all is formed with holding section 4541 for ringent torus and at the two ends of its opening part.Fastener 454 is set up on the stepped hole 415, and holds through the holding section on it 4541 and to be locked on the lasso 453, can avoid bearing 452 and lasso 453 directly to contact with the direct of stepped hole 415 thus.In this embodiment, being sleeved on a bearing 452 on the pivotal part 451 is two, and lasso 453 and fastener 454 are one.

Blocking mechanism 50 comprises and is arranged at support bar 43 away from the block 51 of driving lever 41 and follower lever 42 1 ends and be fixedly set in the bolster 52 on the block 51.

Block 51 is a square block, is fixed in an end of support bar 43, and its horizontal level is consistent with cover half 102.Bolster 52 is for the rectangle block and be formed with bearing-surface 52 above that, and bearing-surface 521 is towards the plane of dynamic model 101, is fixed on the block 51 and can bolster 52 be fixed through fitting with bearing-surface 521 relative one sides.When dynamic model 101 accidental movement, bolster 52 can play cushioning effect.In this embodiment, bolster 52 is processed for excellent power glue material.

During assembling, at first with Coupling 24 with the fixing fit of driving shaft 22 and driven shaft 23.With a lasso 251, bearing 252, corresponding being sheathed on the driven shaft 23.A fastener 254, bearing 252 are installed in first installation hole 1421 away from first installing department 142 of driving shaft 22 1 ends successively, again a lasso 251 are installed in this bearing 252.First pivoting hole, 411 correspondences on the driving lever 41 are placed between first installation hole 1421 on two first installing departments 142.Then, be arranged in two first installation holes 1421 and first pivoting hole 411 of the first installing part 14 with the spline hole 412 on the radial direction through hole 231 corresponding driving levers 41 of driven shaft 23 and with it.Securing member 46 is arranged in spline hole 412 and the radial direction through hole 231 makes it fastening.At this moment, two lassos 251 and two bearings 252 are positioned at two first installation holes 1421 respectively, anti-avulsion part 255 fixed covers are located at the end of driven shaft 23 again.Follower lever is installed on the second installing part 15 through second pivot assembly 44 according to similar approach then.

Bolster 52 is fixedly set on the block 51 and with block 51 is fixedly set on the support bar 43.

Fastener 454 is positioned on the step of stepped hole 415 of driving lever 41 and and is installed on the fastener 454, then, the opposite side of lasso 453 from stepped hole 415 worn the inner ring that is fixed in bearing 452 two bearings 452.Be arranged in pivotal part 451 in bearing 452 and the lasso 453 again and the one of which end is stretched out from stepped hole 415.The 3rd pivot assembly 45 is installed in the stepped hole on the follower lever 42, and its installation method is identical.Then; With two the 3rd installation holes on the support bar 43 (figure do not show) respectively with the corresponding one by one applying of stepped hole 415 of driving lever 41 and follower lever 42; Make pivotal part 451 be arranged in the 3rd installation hole (figure does not show) and fixing; Thereby realize the pivot joint of support bar 43 and driving lever 41 and follower lever 42, more than accomplished the assembling of safety device 100.

When safety device 100 uses; Its installing plate 11 correspondences are fixed on the machining tools such as forging bed, punch press; When safety device 100 was in off working state, its block 51 was away from cover half 102, the storing that forms an angle of driving lever 41 and support bar 43; In this embodiment, driving lever 41 is an acute angle with the angle of support bar 43.When safety device 100 was in running order, its block 51 was between dynamic model 101 and the cover half 102 and plays interval action.Sensor 30 is used for detecting and monitors dynamic model 101 in real time, when sensor 30 detects dynamic model 101 accidental movement, can produce abnormal signal signal is transferred to actuator 21 to start safety device 100.At first, thus actuator 21 drives driving shafts 22 and driven shaft 23 rotations drive driving levers 41 rotations.Driving lever 41 drives support bar 43 rotations; Support bar 43 is transformed into duty from off working state under the restriction of follower lever 42; Be about to block 51 from position, move to and play buffer action between cover half 102 and the dynamic model 101 and also can cushion dynamic model 101 away from cover half 102.

Because utilizing sensor 30 to detect the accidental movement of dynamic model 101 and drive blocking mechanism 50 through driving mechanism 20, safety device 100 stops that dynamic model 101 continues motion; Make to form a distance between dynamic model 101 and the cover half 102, effectively avoided dynamic model 101 to fit tightly the situation of cover half 102 operator or workpiece damage.In addition, this safety device 100 does not need the operator to operate on it or grip when using, and has saved manpower and has improved production efficiency simultaneously.

Be appreciated that the first installing part 14 and the second installing part 15 also can be directly fixed on the installing plate 11.

Be appreciated that first pivot assembly 25 can save lasso 251, retainer ring 253, fastener 254 and anti-avulsion part 255 when bearing 252 connections are stablized.

Be appreciated that bolster 52 also can process for other materials, such as rubber.

In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, these all should be included in the present invention's scope required for protection according to the variation that the present invention's spirit is done.

Claims

1. safety device; Be used to be installed on the lathe and operator or workpiece caused damage with the processing component accidental movement that prevents lathe; Said safety device comprises mechanism for mounting, is fixed in the driving mechanism on the said mechanism for mounting; It is characterized in that: said safety device also comprise the sensor that is arranged on the lathe, with the linkage of said driving mechanism interlock and the blocking mechanism that is arranged at said linkage one end; Said sensor is used for detecting and the said processing component of real-time monitoring; When sensor monitors said processing component accidental movement, control the said linkage work of said drive mechanism and stop that to drive said blocking mechanism said processing component continues motion.

2. safety device as claimed in claim 1; It is characterized in that: said mechanism for mounting comprises that the fixed head that is used for fixing said safety device, the compartment of terrain that is parallel to each other are arranged at the installing part of first on the said fixed head and the second installing part; The said first installing part comprises first connecting portion that is connected with said fixed head and convexedly stretches in first installing department on said first connecting portion; The said second installing part comprises second connecting portion that is connected with said fixed head and convexedly stretches in second installing department on said second connecting portion; Said linkage comprises driving lever and the follower lever that laterally arranges, being installed in respectively on said first installing department and said second installing department of said driving lever and said follower lever.

3. safety device as claimed in claim 2; It is characterized in that: said first and second installing department is two; Said two first installing departments are for laterally arranging; Said two second installing departments are for laterally arranging, and said driving lever one end is installed between said two first installing departments, and said follower lever is installed between said two second installing departments.

4. safety device as claimed in claim 3; It is characterized in that: the driving shaft that said driving mechanism comprises actuator, protrude out out from said actuator one end, the driven shaft that drives by said driving shaft and the Coupling that said driving shaft and said driven shaft are fixedly connected; Relatively connect respectively on said two first installing departments and offer first installation hole, said driven shaft is arranged in said first installation hole and with said driving lever spline away from an end of said actuator and is connected.

5. safety device as claimed in claim 4; It is characterized in that: said driven shaft offers radial direction through hole between said two first installing departments; One end of the contiguous said first installing part of said driving lever offers first pivoting hole and offers and the corresponding spline of said radial direction through hole hole at the said first pivoting hole sidewall; Said driving lever is sheathed on the said driven shaft through said first pivoting hole; Said linkage also comprises the securing member that is arranged in said spline hole and the said radial direction through hole, and said driving lever is connected with the spline of said driven shaft through said securing member.

6. safety device as claimed in claim 3; It is characterized in that: connect relatively respectively on said two second installing departments and offer second installation hole; Said linkage also comprises the pivot that is arranged in said second installation hole, and an end of contiguous said second installing department of said follower lever offers second pivoting hole and is sheathed on the said pivot and can be with respect to the said second installing part rotation through said second pivoting hole.

7. like claim 4 or 6 described safety devices; It is characterized in that: said linkage also comprise be arranged at said driving lever and said follower lever away from the support bar of first and second installing department one end, said support bar can move and receive the restriction of said follower lever under the drive of said driving lever.

8. safety device as claimed in claim 7 is characterized in that: said blocking mechanism comprises and is arranged at said support bar away from the block of said driving lever and said follower lever one end and be fixedly set in the bolster on the said block.

9. safety device as claimed in claim 7; It is characterized in that: said driving lever and said follower lever all offer stepped hole away from an end of said first installing part and the said second installing part; Said support bar offers corresponding two the 3rd installation holes away from an end of said block; Said two the 3rd installation holes are corresponding one by one with said two stepped holes; Said linkage also comprises the pivotal part that is installed in said the 3rd installation hole and the said stepped hole, is sheathed on the bearing on the said pivotal part, and fastener, and said support bar links through said pivotal part and said driving lever and said follower lever.

10. safety device as claimed in claim 7 is characterized in that: said driving lever, said follower lever and said support bar are aluminum alloy materials, and said bolster is that excellent power glue material is processed.