CN213256449U - Bender slider stroke positioner - Google Patents
Bender slider stroke positioner Download PDFInfo
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- CN213256449U CN213256449U CN202021076679.XU CN202021076679U CN213256449U CN 213256449 U CN213256449 U CN 213256449U CN 202021076679 U CN202021076679 U CN 202021076679U CN 213256449 U CN213256449 U CN 213256449U
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Abstract
The utility model relates to a slider stroke positioning device of a bending machine, which comprises a left side positioning structure and a right side positioning structure which are respectively arranged on left and right wallboards of the bending machine; left side location structure and right side location structure pass through the transmission shaft and link to each other, and the bushing assembly of the downthehole installation of bearing frame and bearing frame is passed through at the middle part of transmission shaft on the support frame, the support frame is installed on the oil tank of bender, wherein all includes the interior subassembly of the piston that the structure is unanimous in left side location structure and the right side location structure. The stroke adjusting rod rotates to correspondingly drive the threaded sleeve to move up and down, so that the limit control of the stroke of the oil cylinder is realized, and the positioning function of the stroke of the slider of the bending machine is correspondingly realized.
Description
Technical Field
The utility model belongs to the technical field of the bender preparation trade, concretely relates to bender slider stroke positioner.
Background
In the prior art, a plurality of methods for controlling the stroke positioning of a slider of a bending machine mainly comprise an electro-hydraulic servo valve control method, an external mechanical dead stop limiting control method and the like. The electro-hydraulic servo valve control method has high precision, needs to be matched with a special numerical control system for use, has high cost and is suitable for occasions with high bending precision requirements. The external mechanical dead stop limit control method is similar to the principle of the invention, but occupies larger external space. In a few special use cases, the application is limited. The invention designs the dead stop limiting mechanism in the oil cylinder piston, which can save more external space.
Disclosure of Invention
The invention aims to overcome the defects, and provides the slider stroke positioning device for the bending machine, wherein the dead stop limiting mechanism is designed inside the oil cylinder piston, so that the external space can be saved greatly.
The specific technical scheme is as follows: a slider stroke positioning device of a bending machine comprises
The left side positioning structure and the right side positioning structure are respectively arranged on the left wall plate and the right wall plate of the bending machine;
the left side location structure and the right side location structure are connected through a transmission shaft, the middle of the transmission shaft is assembled on a support frame through a bearing seat and a bushing installed in a bearing seat hole, the support frame is installed on an oil tank of the bending machine, and piston inner assemblies with the same structure are arranged in the left side location structure and the right side location structure.
Furthermore, the left side positioning structure comprises a motor bracket, an oil cylinder piston internal component, a left worm wheel seat, a small belt pulley and a large belt pulley;
wherein the motor bracket is fixedly provided with a flange seat, the motor is arranged on the flange seat, and an output shaft of the motor is provided with a small belt pulley;
the left worm is supported in the left worm wheel seat through a rolling bearing, two ends of the left worm are respectively fixed on the left side and the right side of the left worm wheel seat through a first bearing cover and a second bearing cover, the right extending end of the left worm after being assembled is connected and assembled with the large belt pulley through a flat key,
further, a worm wheel matched with the left worm is arranged in the left worm wheel seat, and the outer circle diameter of the worm wheel and the inner hole diameter of the left worm wheel seat are matched with each other;
the periphery of the stroke adjusting rod is sleeved with a worm wheel, and the worm wheel and the stroke adjusting rod are in spiral fit; a left worm wheel limiting block is assembled at the upper ends of the stroke adjusting rod and the worm wheel limiting block, the stroke adjusting rod is fixedly connected with the left worm wheel limiting block through a pin, the worm wheel is fastened with the worm wheel limiting block through a screw, and the assembled stroke adjusting rod, the worm wheel and the worm wheel limiting block are combined to form an integrated piece; the part screwed on the thread at the lower end part of the stroke adjusting rod is a thread sleeve, and the guide flat key is fixed on the thread sleeve.
The worm wheel cover is fixed at the upper end of the left worm wheel seat.
Furthermore, the internal components of the oil cylinder piston comprise an end cover, a copper cushion block, a piston and a guide flat key,
the piston is arranged in the left oil cylinder body, the end cover is fixed at the upper end of the piston through the locking thread at the lower end of the end cover, the copper cushion block is arranged in a bottom hole of the locking thread, and the guide flat key is in clearance fit with the key groove on the piston.
Furthermore, the right side positioning structure comprises a piston internal component, a heading, a travel switch mounting frame, a right worm gear seat, a right piston end cover, a limit screw and a right worm gear limit block;
wherein the limit screw is fastened on the right worm wheel limit block, and the drive head is in spiral fit with the limit screw;
the head of the right end of the head is in sliding fit with a rectangular hole in a travel switch mounting rack, and the travel switch mounting rack is fixed on the right worm wheel seat;
the upper limit switch and the lower limit switch are respectively fixed on the travel switch mounting frame through the transition plate from top to bottom.
Further, the housing is mounted on the right worm wheel mount. A weight meter is arranged on the shaft head at the right end of the right worm.
Advantageous effects
The utility model discloses compact structure is reasonable. The mechanical stop block has high limiting precision and stable and reliable work.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B of fig. 1.
Fig. 4 is a cross-sectional view of fig. 1 taken along line C-C.
Fig. 5 is a view from direction D of fig. 4.
Detailed Description
The present invention will be further described with reference to the following embodiments.
A slider stroke positioning device of a bending machine comprises a left positioning structure and a right positioning structure which are respectively arranged on left and right wallboards of the bending machine;
left side location structure and right side location structure pass through transmission shaft 9 and link to each other, the middle part of transmission shaft 9 passes through bearing frame 12 and the downthehole bush 11 assembly of installing of bearing frame on support frame 10, support frame 10 is installed on the oil tank of bender, wherein all includes the interior subassembly of the piston that the structure is unanimous in left side location structure and the right side location structure.
The left worm 18 and the right worm 30 of the left positioning structure and the right positioning structure are connected by two connecting sleeves 8 and a transmission shaft 9 to form an integral component. And a bushing 11 is additionally supported in the middle of the transmission shaft 9, the bushing 11 is installed in a hole of a bearing seat 12, the bearing seat 12 is fixed on a support frame 10, and the support frame 10 is installed on an oil tank of the bending machine. The left oil cylinder body is 41, the right oil cylinder body is 42, the oil tank 43 and the wall plate 44.
The left side positioning structure comprises a motor bracket 1, an oil cylinder piston internal component, a left worm 18, a left worm wheel seat 32, a small belt pulley 3 and a large belt pulley 7;
wherein, a flange seat 4 is fixedly arranged on the motor bracket 1, a motor 5 is arranged on the flange seat 4, and a small belt pulley 3 is arranged on an output shaft of the motor;
the small pulley 3 is mounted on the output shaft of the motor 5 by using screws and shaft end collars 2.
The left worm 18 is supported in the left worm wheel seat 32 through a rolling bearing, two ends of the left worm 18 are respectively fixed on the left side and the right side of the left worm wheel seat 32 through a first bearing cover 6 and a second bearing cover 13, the right extending end of the left worm 18 after being assembled is connected and assembled with the large belt pulley 7 through a flat key,
the worm wheel 17 matched with the left worm 18 is arranged in the left worm wheel seat 32, and the outer circle diameter of the worm wheel 17 and the inner hole diameter of the left worm wheel seat 32 are matched with each other;
the periphery of the stroke adjusting rod 16 is sleeved with a worm wheel 17, and the worm wheel and the stroke adjusting rod are in spiral fit; the upper ends of the left worm wheel limiting block and the right worm wheel limiting block are assembled with a left worm wheel limiting block 15, wherein the stroke adjusting rod 16 is fixedly connected with the left worm wheel limiting block 15 through a pin 29, meanwhile, the worm wheel 17 is fastened with the worm wheel limiting block 15 through a screw, and the stroke adjusting rod 16, the worm wheel 17 and the worm wheel limiting block 15 which are assembled are combined to form an integral part which is a dense and inseparable integral part; the screw thread upper-screwing part at the lower end part of the stroke adjusting rod 16 is a screw thread sleeve 23, and the guide flat key 22 is fixed on the screw thread sleeve 23.
The worm wheel cover 14 is fixed on the upper end of the left worm wheel seat 32 and plays a role in dust prevention and sealing.
The internal components of the oil cylinder piston comprise an end cover 19, a copper cushion block 20, a piston 21 and a guide flat key 22,
the piston is arranged in the left oil cylinder body, the end cover 19 is fixed at the upper end of the piston 21 through the locking thread at the lower end of the end cover, the copper cushion block 20 is arranged in a bottom hole of the locking thread, and the outer end of the copper cushion block is locked by a screw to prevent the piston end cover 19 from loosening. The guide flat key 22 is in clearance fit with the key groove on the piston 21.
The right side positioning structure comprises a piston internal component, a drive head 26, a travel switch mounting rack 27, a right worm 30, a right worm wheel seat 33, a right side piston end cover 34, a limit screw 25 and a right worm wheel limit block 35; the structure of the piston inner assembly in the cylinder piston is completely the same as that on the left, and repeated description is not repeated here.
Wherein, the limit screw 25 is fastened on the right worm wheel limit block 35, and the drive head 26 is in screw fit with the limit screw; the threaded hole on the driving head 26 is screwed with the external thread of the limit screw 25.
The head of the right end of the driving head 26 is in sliding fit with a rectangular hole in the travel switch mounting rack 27, and the travel switch mounting rack 27 is fixed on the right worm wheel seat 33.
The upper limit switch 36 and the lower limit switch 37 are respectively fixed on the travel switch mounting frame 27 up and down through the transition plate 28.
The casing 24 is mounted on the right worm wheel mount 33. A weight meter 31 is arranged on the shaft head at the right end of the right worm 30 and is used for displaying the current slide stroke position and manually adjusting the slide stroke position.
Specifically, a stroke adjusting rod is arranged in an oil cylinder piston for driving a sliding block to operate by a bending machine, and a threaded sleeve is arranged at the lower end of the stroke adjusting rod. The external motor drives a transmission shaft to rotate, and the transmission shaft is connected with a left worm and a right worm which are arranged at the top of the oil cylinder into a whole. The left worm drives a worm wheel in the left worm wheel seat to rotate, and the worm wheel is fixedly connected with the stroke adjusting rod to form a member, so that the stroke adjusting rod rotates along with the worm wheel, the threaded sleeve is driven to move up and down, and the stroke adjusting function of the left oil cylinder is realized. The stroke adjusting function of the right oil cylinder is the same. In addition, an upper limit stroke and a lower limit stroke protection device for controlling the stroke of the oil cylinder are designed on the worm wheel limit block of the right oil cylinder, so that the machine is prevented from being damaged.
The working principle is as follows:
the up-down position of the thread bush 22 in the left oil cylinder piston and the right oil cylinder piston is adjusted, thereby controlling the stroke h of the left oil cylinder and the right oil cylinder, and realizing the positioning function of the stroke of the slide block at any position, specifically:
when the motor rotates, the small belt pulley 3 drives the large belt pulley 7 to rotate in a speed reduction way through the transmission belt 45, and the left worm 18 and the right worm 30 synchronously rotate under the belt of the transmission shaft 9 to drive the respective worm gears 17 to further rotate in a speed reduction way. The stroke adjustment lever 16 rotates together with the worm wheel 17. The threaded sleeve 23 is controlled by the guide flat key 22 to be incapable of rotating and only capable of moving up and down, so that the stroke S of the oil cylinder is correspondingly changed, and the positioning control of the stroke of the sliding block is realized. The up-and-down movement of the driving head 26 is used for triggering an upper limit switch or a lower limit switch, and plays a role in limiting and protecting the stroke of the sliding block.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes made to the above embodiments according to the utility model all still belong to the protection scope of the technical scheme of the utility model.
To sum up, the working distance of the right end part of the slider of the bending machine is detected by a right grating ruler 1.1, the working distance of the left end part of the slider of the bending machine is detected by a left grating ruler 1.2, the results of the two end detection are input into a numerical control system for comparison and disposal, the working speeds of the left oil cylinder and the right oil cylinder of the bending machine are controlled by a hydraulic servo valve, the left oil cylinder and the right oil cylinder are forced to run synchronously, and the slider of the bending machine and the driving oil cylinder are fixedly hinged, so that the slider can be always kept parallel to a lower workbench in. The utility model discloses an effect is exactly the depth of parallelism error with the workstation when being used for detecting bender slider operation, realizes closed-loop control.
The lower extreme of right C shape frame 7.1 is installed below bender right side wallboard throat department, and the purpose is to avoid the deformation of bender during operation right side wallboard throat department, and right C shape frame mounting pad 8.1's effect makes right C shape frame 7.1 and bender right side wallboard keep a bit distance, avoids complete contact, just so has avoided the influence of the deformation of bender during operation right side wallboard to grating chi detection precision as far as possible.
In order to prevent the detection precision of the right grating ruler 1.1 from being influenced by the shaking of the right C-shaped frame 7.1 during the operation of the bending machine, a right large gasket 9.1 is additionally arranged at the upper end part of the right C-shaped frame 7.1, and then the right large gasket is fixed on a right wall plate of the bending machine through screws to play a role of auxiliary support. The right-side right-handed rod end oscillating bearing 6.1 and the right-side left-handed rod end oscillating bearing 2.1 can play a role in micro self-alignment regulation, and parts are prevented from being damaged by rigid connection. The upper end of the right connecting small shaft 4.1 is provided with a left thread, the lower end of the right connecting small shaft is provided with a right thread, and the right connecting small shaft connects the right-handed left-handed rod end oscillating bearing 2.1 and the right-handed rod end oscillating bearing 6.1. The upper end of the right connecting small shaft 4.1 is locked by a right left-handed nut 3.1, the lower end is locked by a right-handed nut 5.1, and the purpose is to prevent the right connecting small shaft 4.1 from loosening to generate displacement, thereby influencing the detection precision.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes made to the above embodiments according to the utility model all still belong to the protection scope of the technical scheme of the utility model.
The above-mentioned embodiments are only described for the preferred embodiments of the present invention, but not for limiting the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (6)
1. A slider stroke positioning device of a bending machine is characterized by comprising
The left side positioning structure and the right side positioning structure are respectively arranged on the left wall plate and the right wall plate of the bending machine;
left side location structure and right side location structure pass through transmission shaft (9) and link to each other, bushing (11) that the middle part of transmission shaft (9) was installed through bearing frame (12) and bearing frame hole assemble on support frame (10), support frame (10) are installed on the oil tank of bender, wherein all include the interior subassembly of the piston of structure unanimity in left side location structure and the right side location structure.
2. The slider stroke positioning device for bending machines according to claim 1,
the left side positioning structure comprises a motor support (1), an oil cylinder piston internal component, a left worm (18), a left worm wheel seat (32), a small belt pulley (3) and a large belt pulley (7);
wherein a flange seat (4) is fixedly arranged on the motor bracket (1), a motor (5) is arranged on the flange seat (4), and a small belt pulley (3) is arranged on an output shaft of the motor;
the left worm (18) is supported in the left worm wheel seat (32) through a rolling bearing, two ends of the left worm (18) are respectively fixed on the left side and the right side of the left worm wheel seat (32) through a first bearing cover (6) and a second bearing cover (13), and the right extending end of the left worm (18) which is assembled is connected and assembled with the large belt pulley (7) through a flat key.
3. The slider stroke positioning device for bending machines according to claim 2,
the worm wheel (17) matched with the left worm (18) is arranged in the left worm wheel seat (32), and the outer circle diameter of the worm wheel (17) and the inner hole diameter of the left worm wheel seat (32) are matched with each other;
a worm wheel (17) is sleeved on the periphery of the stroke adjusting rod (16), and the worm wheel and the stroke adjusting rod are in spiral fit; a left worm wheel limiting block (15) is assembled at the upper ends of the left worm wheel limiting block and the right worm wheel limiting block, wherein the stroke adjusting rod (16) is fixedly connected with the left worm wheel limiting block (15) through a pin (29), meanwhile, the worm wheel (17) is fastened with the worm wheel limiting block (15) through a screw, and the assembled stroke adjusting rod (16), the worm wheel (17) and the worm wheel limiting block (15) are combined to form an integrated piece; the part screwed on the thread at the lower end part of the stroke adjusting rod (16) is a thread sleeve (23), and a guide flat key (22) is fixed on the thread sleeve (23);
the worm wheel cover (14) is fixed at the upper end of the left worm wheel seat (32).
4. A slider stroke positioning device for bending machines according to claim 3, characterized in that,
the internal components of the oil cylinder piston comprise an end cover (19), a copper cushion block (20), a piston (21) and a guide flat key (22),
the piston is arranged in the left oil cylinder body, the end cover (19) is fixed at the upper end of the piston (21) through the locking thread at the lower end of the end cover, the copper cushion block (20) is arranged in a bottom hole of the locking thread, and the guide flat key (22) is in clearance fit with the key groove on the piston (21).
5. The slider stroke positioning device for bending machines according to claim 1,
the right side positioning structure comprises a piston internal component, a drive head (26), a travel switch mounting rack (27), a right worm (30), a right worm wheel seat (33), a right side piston end cover (34), a limit screw rod (25) and a right worm wheel limit block (35);
wherein the limiting screw rod (25) is fastened on the right worm wheel limiting block (35), and the drive head (26) is in spiral fit with the limiting screw rod;
the head of the right end of the drive head (26) is in sliding fit with a rectangular hole in the travel switch mounting rack (27), and the travel switch mounting rack (27) is fixed on the right worm wheel seat (33);
the upper limit switch (36) and the lower limit switch (37) are respectively fixed on the travel switch mounting frame (27) up and down through a transition plate (28).
6. The slider stroke positioning device for bending machines according to claim 5, characterized in that,
the housing (24) is arranged on the right worm wheel seat (33);
a weight meter (31) is arranged on the shaft head at the right end of the right worm (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021076679.XU CN213256449U (en) | 2020-06-11 | 2020-06-11 | Bender slider stroke positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021076679.XU CN213256449U (en) | 2020-06-11 | 2020-06-11 | Bender slider stroke positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213256449U true CN213256449U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021076679.XU Active CN213256449U (en) | 2020-06-11 | 2020-06-11 | Bender slider stroke positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213256449U (en) |
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2020
- 2020-06-11 CN CN202021076679.XU patent/CN213256449U/en active Active
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