CN210877250U - Protection device for bending machine - Google Patents
Protection device for bending machine Download PDFInfo
- Publication number
- CN210877250U CN210877250U CN201921438036.2U CN201921438036U CN210877250U CN 210877250 U CN210877250 U CN 210877250U CN 201921438036 U CN201921438036 U CN 201921438036U CN 210877250 U CN210877250 U CN 210877250U
- Authority
- CN
- China
- Prior art keywords
- safety plate
- protection device
- bending
- bending machine
- machine according
- 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
- 238000005452 bending Methods 0.000 title claims abstract description 65
- 230000003028 elevating effect Effects 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model belongs to the technical field of metal punching press, specifically disclose a protection device for bending machine, including frame and workstation, be equipped with elevating gear in the frame, elevating gear free end fixedly connected with bending knife, elevating gear lateral wall still fixedly connected with sliding sleeve, sliding connection has the safety plate in the sliding sleeve, the safety plate free end extends in the sliding sleeve outside, the safety plate is for the vertical sliding connection of sliding sleeve, the spout top is equipped with control elevating gear's scram switch, under the relative sliding sleeve shrink minimum distance state of safety plate, the level of safety plate bottom is less than the level of bending knife bottom. An object of the utility model is to provide a protection device for bender to solve the technical problem that the bender can't protect the operating personnel hand.
Description
Technical Field
The utility model belongs to the technical field of metal stamping.
Background
The bending machine is a machine capable of bending a thin plate, and is divided into a manual bending machine, a hydraulic bending machine and a numerical control bending machine. Manual bender divide into manual bender of machinery and electronic manual bender again, and hydraulic bending machine can divide into again according to the synchronization mode: torsion shaft synchronization, mechanical hydraulic synchronization, and electro-hydraulic synchronization. The hydraulic bending machine can be divided into the following parts according to the movement mode: the up-moving type and the down-moving type. The structure of the coil-type clamping device mainly comprises a support, a workbench and a clamping plate, wherein the workbench is arranged on the support and comprises a base and a pressing plate, the base is connected with the clamping plate through a hinge, the base comprises a base shell, a coil and a cover plate, the coil is arranged in a recess of the base shell, and the cover plate covers the top of the recess. And bending the metal plate on the workbench through the up-and-down movement of the pressing plate.
The bending machine in the prior art does not have a perfect protection function, and an operator is in a mechanical working state for a long time, so that a hand or a finger is easy to extend into the lower part of a bending knife of a cutting die of the bending machine due to fatigue or carelessness, and a serious personal injury accident that the hand or the finger of the operator is clamped or even pinched off is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a protection device for bender to solve the technical problem that the bender can't protect the operating personnel hand.
In order to achieve the above object, the basic scheme of the utility model is: the protection device for the bending machine comprises a rack and a workbench, wherein a lifting device is arranged on the rack, a bending knife is fixedly connected to the free end of the lifting device, a sliding sleeve is also fixedly connected to the side wall of the lifting device, a sliding groove is formed in the bottom of the sliding sleeve in the vertical direction, a safety plate is connected in the sliding groove in a sliding mode, the length of the safety plate in the vertical direction is larger than the depth of the sliding groove, and an emergency stop switch for controlling the lifting device is arranged at the; and under the condition that the safety plate is completely retracted into the sliding sleeve, the bottom end of the safety plate is lower than the bottom end of the bending knife.
The working principle of the basic scheme is as follows: the lifting device controls the bending knife to descend and simultaneously controls the safety frame and the safety plate to descend together. When the operator mistakenly places the hand on the workbench, the horizontal height of the bottom end of the safety plate is lower than the height of the bottom end of the bending knife, so that the safety plate firstly contacts the hand of the operator, and the safety plate is collided by the hand of the operator to be relatively contracted in the process of continuously descending the lifting device. When the safety plate contracts to the top end, the bottom end of the safety plate can trigger the emergency stop switch, so that the whole bending machine is finally stopped, and finally, the situation that the bending machine mistakenly touches the two hands of an extrusion operator is avoided.
The beneficial effect of this basic scheme lies in: compared with the prior art, the mechanical mechanism can be used for automatically judging whether the hands of the operators are placed on the workbench or not, and in case of detecting the existence and automatically stopping the operation of the bending machine, the risk probability of accident occurrence is effectively reduced, and the safety performance of the bending machine is improved.
Further, elevating gear includes flexible hydro-cylinder, the free end fixedly connected with support frame of flexible hydro-cylinder, the support frame bottom can be dismantled and be connected with the bending sword, support frame lateral wall fixed connection the sliding sleeve.
This technical scheme is through set up the support frame of special construction at flexible hydro-cylinder free end, can guarantee the sword of buckling of nimble assembly various structures on the one hand, and on the other hand is convenient for operating personnel debugging sliding sleeve and installation safety plate structure also.
Furthermore, an inverted T-shaped groove is formed in the bottom surface of the support frame, a T-shaped protrusion is arranged at the top end of the bending knife, the T-shaped protrusion of the bending knife is connected into the inverted T-shaped groove in a sliding mode, and the bending knife is fixedly connected with the inverted T-shaped groove of the support frame through bolts.
The technical scheme of the machine utilizes the T-shaped structure to carry out detachable connection so as to achieve the technical effect of conveniently and rapidly replacing the bending knife at any time.
Further, the safety plate is internally provided with a cavity, the side wall of the safety plate close to the bending knife is provided with an opening, the cavity is filled with an air bag, one side of the air bag is provided with a generator for detonating the air bag, the safety plate is provided with a pinhole in the vertical direction of the generator, the pinhole is communicated with the top end of the safety plate, and the top surface of the sliding chute is provided with a firing pin in the vertical direction of the pinhole.
This technical scheme is through addding air bag, and the air bag is in time triggered to utilize the firing pin on the operating personnel is about to be injured by mistake to play the effect to operating personnel hand protection.
Furthermore, a compression spring is connected between the top end of the safety plate and the top end of the sliding groove.
After the safety plate butts against the hand of an operator, the safety plate is relatively contracted relative to the sliding sleeve. During the retraction of the safety plate, the compression spring is also correspondingly compressed. Because compression spring can produce a reverse effort at the extruded in-process for operating personnel's hand receives pressure and strengthens gradually, and then makes operating personnel pass through the impression of sense of touch, in order to reach the purpose that reminds operating personnel probably to appear squeezing the hand risk.
Further, the bottom end of the safety plate is a curved chamfer made of rubber.
This technical scheme utilizes the safety plate of curved surface chamfer, and then plays the technological effect of buffering at the in-process that the safety plate contacted, improves the security performance of whole device.
Furthermore, the side wall of the safety plate is horizontally provided with observation holes penetrating through two horizontal sides.
This technical scheme is through add the observation hole on the safety plate, at the in-process of bending so that operating personnel observes the real-time condition of knowing the workstation surface through the observation hole.
Further, the end face of the workbench is detachably connected with a cuboid structure mold, and the end face of the mold is provided with a plurality of grooves with different shapes.
An operator can fix the designated end face on the die under the bending knife according to actual requirements, and then the technical effect of variously selecting the bending shape is achieved.
Further, the detachable connection mode is bolt connection.
Further, the bottom end of the safety plate is fixedly connected with a rubber pad.
Through the structure of addding the rubber layer, play effective buffering effect in safety plate and operating personnel's hand contact process, avoid excessive extrusion to cause the injury.
Drawings
Fig. 1 is a schematic structural view of a protection device for a bending machine according to an embodiment of the present invention;
fig. 2 is a partial sectional view of a protection device for a bending machine according to an embodiment of the present invention;
fig. 3 is a partial cross-sectional view of the protection device for a two-bending machine according to the embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a frame 1, a workbench 2, a telescopic oil cylinder 3, a support frame 4, a bending knife 5, a sliding sleeve 6, a safety plate 7, a compression spring 8, an emergency stop switch 9, a needle hole 10, a firing pin 11, a generator 12 and an air bag 13.
Example one
Substantially as shown in figures 1 and 2: the protection device for the bending machine comprises a machine frame 1 and a workbench 2. The end face of the workbench 2 is detachably connected with a mold with a cuboid structure, and the end face of the mold is provided with a plurality of grooves with different shapes. The top of frame 1 is equipped with flexible hydro-cylinder 3, and the flexible direction of flexible hydro-cylinder 3 is for stretching out and drawing back from top to bottom along vertical direction, and the free end of flexible hydro-cylinder 3 is seted up in the one side that is close to ground. The free end of the telescopic oil cylinder 3 is fixedly connected with a support frame 4. An inverted T-shaped groove is formed in the bottom surface of the support frame 4, a bending knife 5 is matched with the T-shaped groove, the top of the bending knife 5 is a protrusion of a T-shaped structure, the T-shaped protrusion of the bending knife 5 is connected to the inverted T-shaped groove of the support frame 4 in a sliding mode, and the bending knife 5 is fixedly connected with the groove of the support frame 4 through a bolt.
4 lateral walls of support frame still weld fixedly connected with sliding sleeve 6, sliding connection has safety plate 7 in the sliding sleeve 6, and 7 free ends of safety plate extend in sliding sleeve 6 outsidely, and safety plate 7 has opened the spout for the 6 vertical sliding connection of sliding sleeve, sliding sleeve 6's bottom, and the extending direction of spout is on a parallel with vertical direction. The top end of the sliding groove is provided with an emergency stop switch 9 for controlling the telescopic oil cylinder 3, and the horizontal height of the bottom end of the safety plate 7 is lower than that of the bottom end of the bending knife 5 under the state that the safety plate 7 contracts to the sliding sleeve 6 by the shortest distance. Be connected with compression spring 8 between 7 tops of safety plate and the spout top, compression spring 8 is when free state, and safety plate 7 is located the farthest end for sliding sleeve 6, and 7 bottoms of safety plate are the curved surface chamfer of circular arc and the parcel has a layer rubber layer. The side wall of the safety plate 7 is horizontally provided with observation holes penetrating through two horizontal sides, and when the compression spring 8 is in a free state, the observation holes and the workbench 2 are positioned at the same horizontal height.
The specific implementation process is as follows: firstly, a workpiece is placed on the surface of a workbench 2, then a telescopic oil cylinder 3 is started, and a bending knife 5 on the telescopic oil cylinder 3 punches and bends the workpiece on the workbench 2. When the hand of the operator is placed on the worktable 2 by mistake, the safety plate 7 of the bending knife 5 first contacts with the hand of the operator during the descending process. At this time, the operator feels the extrusion of the safety plate 7, and then obtains an early warning signal that the bending knife 5 is about to fall. If the hands of the operator are not timely retracted, the safety plate 7 and the sliding sleeve 6 can be relatively retracted, when the top surface of the safety plate 7 moves to the top surface of the sliding sleeve 6, the safety plate 7 triggers the emergency stop switch 9 which is responsible for controlling the telescopic oil cylinder 3, the emergency stop switch 9 finally enables the whole bending machine to stop working through emergency braking, and the technical effect of emergency protection of the operator is finally achieved.
Example two
The difference between this embodiment and the first embodiment is that, as shown in fig. 3, a cavity is opened inside the safety plate 7, and an opening is opened on the side wall of the safety plate 7 near the bending knife 5. The cavity is filled with an air bag 13, a generator 12 used for detonating the air bag 13 is arranged on one side of the air bag 13, a pinhole 10 is arranged on the safety plate 7 in the vertical direction of the generator 12, the pinhole 10 is communicated with the top end of the safety plate 7, and a firing pin 11 is arranged on the top surface of the sliding chute in the vertical direction of the pinhole 10.
The specific implementation process is as follows: during the retraction of the safety plate 7 against the operator's hand, the striker 11 will pass through the pinhole 10 and trigger the generator 12 of the airbag 13. After the generator 12 is triggered, the safety airbag 13 is rapidly expanded, the expansion of the safety airbag 13 causes the safety airbag to expand out of the opening of the safety plate 7, the outward expansion process of the safety airbag 13 pushes the hand of an operator open, and finally the effect of preventing the hand of the operator from being squeezed is achieved.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.
Claims (10)
1. Protection device for bender, including frame and workstation, be equipped with elevating gear in the frame, elevating gear free end fixedly connected with bending sword, its characterized in that: the side wall of the lifting device is also fixedly connected with a sliding sleeve, the bottom of the sliding sleeve is provided with a sliding groove along the vertical direction, a safety plate is connected in the sliding groove in a sliding manner, the length of the safety plate in the vertical direction is greater than the depth of the sliding groove, and the top end of the sliding groove is provided with an emergency stop switch for controlling the lifting device; and under the condition that the safety plate is completely contracted into the sliding groove, the bottom end of the safety plate is lower than the bottom end of the bending knife.
2. The protection device for a bending machine according to claim 1, characterized in that: the lifting device comprises a telescopic oil cylinder, a support frame is fixedly connected to the free end of the telescopic oil cylinder, a bending knife is detachably connected to the bottom end of the support frame, and the side wall of the support frame is fixedly connected with the sliding sleeve.
3. The protection device for a bending machine according to claim 2, characterized in that: the bottom surface of the support frame is provided with an inverted T-shaped groove, the top end of the bending knife is a T-shaped protrusion, the T-shaped protrusion of the bending knife is connected in the inverted T-shaped groove in a sliding mode, and the bending knife is fixedly connected with the inverted T-shaped groove of the support frame through bolts.
4. The protection device for a bending machine according to claim 1, characterized in that: the safety plate is characterized in that a cavity is formed in the safety plate, an opening is formed in the side wall, close to the bending knife, of the safety plate, an air bag is filled in the cavity, a generator used for detonating the air bag is arranged on one side of the air bag, a pinhole is formed in the safety plate in the vertical direction of the generator and communicated with the top end of the safety plate, and a firing pin is arranged on the top surface of the sliding chute in the vertical direction of the pinhole.
5. The protection device for a bending machine according to claim 1, characterized in that: and the bottom end of the safety plate is provided with a curved surface arc chamfer.
6. The protection device for a bending machine according to claim 1, characterized in that: the side wall of the safety plate is provided with an observation hole.
7. The protection device for a bending machine according to claim 1, characterized in that: and a compression spring is connected between the top end of the safety plate and the top end of the sliding groove.
8. The protection device for a bending machine according to claim 1, characterized in that: the workbench end face is detachably connected with a cuboid structure mold, and the mold end face is provided with a plurality of grooves with different shapes.
9. The protection device for a bending machine according to claim 8, wherein: the detachable connection mode is bolt connection.
10. The protection device for a bending machine according to claim 1, characterized in that: the bottom end of the safety plate is fixedly connected with a rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438036.2U CN210877250U (en) | 2019-08-30 | 2019-08-30 | Protection device for bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438036.2U CN210877250U (en) | 2019-08-30 | 2019-08-30 | Protection device for bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210877250U true CN210877250U (en) | 2020-06-30 |
Family
ID=71326154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921438036.2U Expired - Fee Related CN210877250U (en) | 2019-08-30 | 2019-08-30 | Protection device for bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210877250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102369A (en) * | 2023-10-24 | 2023-11-24 | 天津广福瑞达科技发展有限公司 | Stamping device for shaping compressor shell |
-
2019
- 2019-08-30 CN CN201921438036.2U patent/CN210877250U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102369A (en) * | 2023-10-24 | 2023-11-24 | 天津广福瑞达科技发展有限公司 | Stamping device for shaping compressor shell |
| CN117102369B (en) * | 2023-10-24 | 2024-01-09 | 天津广福瑞达科技发展有限公司 | Stamping device for shaping compressor shell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212884435U (en) | Machining device for side wall punching of automobile safety airbag shell part | |
| CN210877250U (en) | Protection device for bending machine | |
| CN216263162U (en) | Mechanical anti-pressing safety mechanism | |
| CN205763314U (en) | Stamping die of automotive covering part and there is the stamping system of this mould | |
| CN211161623U (en) | Equipment is used in stamping die processing | |
| JP3997536B2 (en) | Forging machine | |
| CN202185548U (en) | Universal hydraulic machine safety gate | |
| CN214639305U (en) | Protection device for bending machine | |
| CN211191604U (en) | Production presses down puncher for dirt board | |
| CN210172425U (en) | Press machine | |
| CN211707968U (en) | High-protection manganin resistance pressing equipment | |
| CN211161716U (en) | Mechanical press for metal forging | |
| CN107363900B (en) | Die cutting cutter die with safety protection function and working method thereof | |
| CN209349412U (en) | Safety guard for automotive seat cushion press machine | |
| CN112642955A (en) | Gravity auto-induction protection device for die stamping machine table | |
| CN215315307U (en) | Safety protection device for punch press | |
| CN205763275U (en) | A kind of pressing equipment of band lamp door shaped automobile side skin | |
| CN220805265U (en) | Punch press with dual safety protection | |
| CN219402061U (en) | Novel cold heading equipment of hydraulic valve top cap production | |
| CN208050673U (en) | A kind of press machine | |
| CN210676648U (en) | Safe type five metals stamping die | |
| CN210309175U (en) | Press machine | |
| CN221086911U (en) | Vertical hydraulic stamping machine tool | |
| CN219600511U (en) | Frame type hydraulic press for metal processing | |
| KR930017705A (en) | Turret punch press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 |