CN114654219A - Mechanical hand for screwing special-shaped nut - Google Patents
Mechanical hand for screwing special-shaped nut Download PDFInfo
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- CN114654219A CN114654219A CN202210578763.9A CN202210578763A CN114654219A CN 114654219 A CN114654219 A CN 114654219A CN 202210578763 A CN202210578763 A CN 202210578763A CN 114654219 A CN114654219 A CN 114654219A
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- disassembling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/067—Bolt tensioners
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- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a special-shaped nut screwing manipulator which comprises two oppositely arranged disassembling support frames, wherein the disassembling support frames are connected with abutting rods capable of abutting against a die plate, the two oppositely arranged disassembling support frames are correspondingly provided with disassembling and assembling stands driven by a disassembling and assembling power mechanism, the inner ends of the disassembling and assembling stands are provided with disassembling and assembling combination claws, the disassembling support frames are also provided with detection and protection devices capable of detecting the number of turns of the special-shaped nuts and protecting the special-shaped nuts, the disassembling support frames are rotatably connected with driving rotating sleeves driven to rotate by a screwing power device, the driving rotating sleeves comprise driving rotating heads and driving sleeves capable of being sleeved on tension rods, the driving rotating heads are in power connection with the driving sleeves through an automatic centering structure, the driving sleeves are in power connection with driving rotating sleeve gears through splines, and driving abutting springs are arranged between the driving sleeves and the disassembling support frames. The special-shaped nut clamping device can clamp a special-shaped nut quickly and accurately, and has the advantages of effectively ensuring the production quality of a track slab and improving the labor efficiency.
Description
Technical Field
The invention relates to the field of machinery capable of automatically combining and screwing a special-shaped nut, in particular to a special-shaped nut screwing manipulator.
Background
In the process of building high-speed railways in China, prestressed track slabs are mostly used, and in the production process of the prestressed track slabs, molds are required to be used for production, prestressed reinforcements are arranged in the molds, and then concrete is put into the molds. The prestressed steel bars need to be tensioned in a mould, a single tension value is used for controlling in the process of tensioning the steel bars, the tensioning of the steel bars is uniform, the loading rate and the tensioning force are strictly specified in quantity, and the prestressed steel bars are locked after the tensioning is finished. In the process of stretching and locking the reinforcing steel bar, the special-shaped nut at the end part of the reinforcing steel bar needs to be screwed, after production is completed, the special-shaped nut needs to be locked and disassembled, if the special-shaped nut is screwed manually, the labor efficiency is low, potential safety hazards exist, the special-shaped nut is screwed mechanically, rapid and accurate clamping cannot be realized, and the labor efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a special-shaped nut screwing manipulator which can quickly and accurately combine the special-shaped nut and ensure the screwing precision of the special-shaped nut, thereby realizing automatic operation and improving the efficiency.
In order to solve the technical problem, the provided special-shaped nut screwing manipulator comprises two detachable support frames which are oppositely arranged, and is characterized in that: the utility model discloses a mould, including dismantling the support frame, be connected with on the dismantlement support frame and can push up the top leaning on the pole on the mould, the corresponding dismouting frame by dismouting power unit drive that is equipped with on two relative dismantlement support frames, the inner of dismouting frame is equipped with the dismouting combination claw that the special-shaped nut that supplies on the mould stretched into, still is equipped with on the dismantlement support frame and can detects the detection protection device that heterotypic nut turned round and protection heterotypic nut, it includes the detection frame board of connection on dismantling the support frame to detect protection device, be equipped with on the detection frame board and can the plug bush in the jack in the heterotypic nut outside and heterotypic nut can be equipped with the free rotation at the jack, still be equipped with on the detection frame board and can detect the sensor of heterotypic nut turn round, it is connected with by revolving the drive swivel cover of twisting power unit drive pivoted to dismantle on the support frame, the drive swivel cover is including can the drive swivel cover and the driving sleeve on the stretch-pull rod, and drive the swivel cover through the self-centering structure power connection, the driving sleeve is in power connection with the driving rotating sleeve gear through a spline, a driving top spring is arranged between the driving sleeve and the disassembling support frame, and the driving rotating head can drive the special-shaped nut to rotate and is arranged at the inner end of the driving rotating sleeve.
The disassembly and assembly combined claw comprises two claw arms correspondingly hinged to two sides of the disassembly and assembly rack, and a limiting driving device is arranged on the disassembly support frame, wherein the inner ends of the claw arms are relatively close when the two claw arms move inwards, and the inner ends of the claw arms are far away from each other when the two claw arms move outwards.
The outer surface of the claw arm is two planes which are arranged in a corner shape, the limiting driving device is a limiting column connected to the disassembling support frame, and the limiting column is attached to the outer surface of the claw arm.
The dismounting power mechanism comprises a dismounting oil cylinder connected to the dismounting support frame, the tension stress monitoring device comprises a displacement sensor connected to the sliding distance of the monitoring dismounting frame, and a pressure sensor is arranged on a piston rod of the dismounting oil cylinder.
The screwing power device comprises a driving rotating sleeve gear which is rotatably connected to the disassembling support frame and driven by a power motor, and the outer wall of the driving rotating sleeve is in power connection with the driving rotating sleeve gear and can be sleeved on the tension rod.
The automatic centering structure includes that the spiro union changes the outer end and changes two centering double-screw bolts of symmetry along the drive in the drive, being equipped with on the drive changes and stretching into the arm of inserting that drive sleeve and position and centering double-screw bolt correspond, being equipped with the saddle on the drive sleeve, being equipped with on the saddle and supplying to insert arm male jack and insert the arm and can radially slide along the drive sleeve on the saddle, realize under the cooperation of inserting arm and saddle that the drive changes the head and is connected with the power of drive sleeve, the bottom of centering double-screw bolt is equipped with the bottom surface and the saddle counterbalance of baffle and baffle of suit on centering double-screw bolt, is equipped with centering top spring between the head of baffle and centering double-screw bolt.
After the structure is adopted, the special-shaped nut on the die is utilized, the special-shaped nut is positioned in the dismounting combination claw, quick and accurate clamping is realized, the special-shaped nut is effectively tensioned through the dismounting power mechanism, the two opposite dismounting frames are used for screwing the special-shaped nut on the same steel bar, meanwhile, the tensioning stress is recorded and detected through the tensioning stress monitoring device, so that accurate prestress of the control steel bar is realized, the abutting rod abuts against the die, the die can be effectively prevented from moving in the tensioning process, the position of the steel bar in the die is ensured, the product quality is improved, in addition, the driving rotating sleeve is rotated through the power driving of the screwing power device, so that the special-shaped nut is rotated, the position of the tensioning rod and the die is locked, the prestress consistency of a plurality of steel bars is ensured, and the product quality is improved.
In summary, compared with the prior art, the scheme has the following advantages: the special-shaped nut clamping device can clamp the special-shaped nut quickly and accurately, is very convenient and quick to disassemble and assemble, and has the advantages of effectively ensuring the production quality of the track slab and improving the labor efficiency.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
FIG. 1 is a schematic view of an embodiment of the present invention connected to a tensioning machine;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the structure in the direction A of FIG. 2;
FIG. 4 is a perspective view of the internal structure of the disassembled support frame;
FIG. 5 is a schematic view of a driving sleeve rotated by a screwing power device;
FIG. 6 is a schematic structural view taken along line B-B in FIG. 5;
FIG. 7 is a schematic structural view taken along the line C-C in FIG. 6;
FIG. 8 is a schematic structural view of a mold;
in the figure: a mold 20; a tension rod 21; a first profile nut 211; a second profile nut 212; opening and closing the garbage can rack 1; a tension slipping frame 2; disassembling the support frame 3; a stopper post 31; a top rest bar 4; a mounting and dismounting frame 5; assembling and disassembling the combining claw 6; a driving rotary sleeve 7; the driving rotor 71; a drive sleeve 72; the drive spring 73; disassembling and assembling the oil cylinder 8; a displacement sensor 9; a pressure sensor 10; a power motor 11; driving the rotating sleeve gear 12; a centering stud 13; a baffle 14; a centering top spring 15; a detection frame plate 16; and a sensor 17.
Detailed Description
As shown in fig. 8, the applicant manufactures a mold 20 for producing a prestressed track slab, the basic structure of which is the same as that of a mold in the prior art, the mold has a mold cavity, the structure and shape in the mold cavity are both for manufacturing the prestressed track slab, the specific structure of the mold is not described in detail, a tension rod 21 is inserted on the sidewall of the mold 20, a first special-shaped nut 211 is arranged at the end of the tension rod, the tension rod can be screwed mechanically or manually by a wrench, so that the end of a steel bar is combined with the tension rod, the existing apparatus cannot realize quick and accurate clamping of the tension rod, so that the tension efficiency is low and the quality is poor, a threaded section exposed outside the mold is further arranged in the middle of the tension rod 21, and a second special-shaped nut 212 attached to the outer surface of the mold is screwed on the threaded section.
Referring to fig. 1, there is shown an embodiment of a rail plate reinforcing bar tensioning mechanism, which illustrates a structure of the embodiment of the present invention connected to the tensioning machine, the sheet-opening garbage machine comprises a sheet-opening garbage machine frame 1, a sheet-opening sliding frame 2 which is arranged at the outer sides of two opposite sides of a die and is driven by a power mechanism to synchronously lift is connected on the sheet-opening garbage machine frame 1 in a sliding way, the tension-tension sliding frame 1 is connected with a tension-tension placing sliding frame 2 which is oppositely arranged at the outer sides of two opposite sides of the die and is driven by a power mechanism to synchronously lift, the tension-releasing sliding frame 2 is connected to the tension-garbage frame 1 in a sliding way through the structure of a sliding plate and a guide rail, certainly, the sliding connection can also be realized by adopting a structure such as a guide sleeve and a guide column, the power mechanism comprises a vertical screw rod which is connected to the tension-type garbage rack 1 and driven by a power machine to rotate, the power machine is a private motor, and the tension-type sliding rack is connected with a screw nut which is screwed on the vertical screw rod. In order to improve the stability of the tension garbage rack and the stability of the lifting of the tension sliding rack, in the embodiment, the tension garbage rack 1 is approximately square and comprises four stand columns, the stand columns are connected to the ground through foundation bolts, the tops of two adjacent stand columns are connected with a connecting beam to form a stable frame type structure, four corners of the tension garbage rack are provided with vertical lead screws, namely the four lead screws are arranged, the vertical lead screws are rotatably connected in the stand columns and are provided with four tension sliding racks which are arranged oppositely, the nuts are connected to two end portions of the tension sliding racks, namely the lead screws are driven by a plurality of servo motors to rotate synchronously through a controller, so that the tension sliding racks can be lifted stably.
As shown in fig. 1, the tension-releasing sliding frame 2 is connected with a disassembling support frame 3 which is driven by a combined power mechanism to slide inside and outside along the tension-releasing rack, in this embodiment, two pairs of opposite disassembling support frames 3 are provided, that is, longitudinal and transverse steel bars are simultaneously tensioned, and inside and outside in the present invention mean: the mold is placed in the middle of the tensioning machine frame, the part close to the mold is the inner side of the tensioning machine frame and the outer side of the mold, the support frame 3 is detached and connected to the tensioning sliding frame 2 in a sliding mode, the power mechanism is combined and connected to the power cylinder on the tensioning sliding frame 2, and the support frame 3 is detached and connected with the piston rod of the power cylinder in a power mode.
As shown in fig. 1 to 4, the disassembling and assembling support frame 3 is connected with a top leaning rod 4 capable of leaning against a mold, two opposite disassembling and assembling frames 5 driven by a disassembling and assembling power mechanism are correspondingly installed on the two opposite disassembling and assembling support frames 3, that is, the disassembling and assembling frames located at two opposite sides of the mold are oppositely arranged, the two opposite disassembling and assembling frames can simultaneously pull two ends of a steel bar, a disassembling and assembling combining claw 6 for a first special-shaped nut 211 of a tension rod on the mold to extend into is arranged at the inner end of each disassembling and assembling frame 5, the disassembling and assembling claw 6 comprises two claw arms correspondingly hinged at two sides of the disassembling and assembling frame, and a limiting driving device for relatively drawing the inner ends of the claw arms close when the two claw arms move inwards and making the inner ends of the claw arms far away from each other when the two claw arms move outwards is installed on the disassembling and assembling support frames 3; in this embodiment, the surface of jack catch arm is for being the two planes that the turning form set up, spacing drive arrangement is the spacing post 31 of connection on dismantling support frame 3, spacing post laminating is on the surface of jack catch arm, during the initial position, dismouting power unit orders about the dismouting frame and inwards slides, the lateral surface of jack catch arm meets the limiting displacement of spacing post and makes the inner of two jack catch arms keep away from each other and be the state of opening (being the state in fig. 3), open between this two jack catch arms of first dysmorphism nut 211 card income of pull rod, when dismouting power unit drive dismouting frame 5 outwards slides, under limiting displacement of spacing post 31, jack catch arm inner draws close this first dysmorphism nut 211 relatively when two jack catch arms inwards move, the quick and accurate centre gripping of stretch-draw rod end portion has been realized. Of course, the above-mentioned limit driving device may also adopt the following structure, and the corresponding track is arranged on the detachable support frame 3, and when the two claw arms of the detachable combination claw move inward and outward, the detachable combination claw is limited by the track, so that the inner ends of the claw arms relatively approach to each other when the two claw arms move inward, and the inner ends of the claw arms are away from each other when the two claw arms move outward, which is not described in detail herein.
Referring to fig. 2 and 3, the disassembling support frame 3 is further provided with a detecting and protecting device capable of detecting the number of turns of the special-shaped nut and protecting the special-shaped nut, the detection protection device comprises a detection frame plate 16 connected on the disassembly support frame 3, the detection frame plate 16 is provided with a jack which can be inserted and sleeved outside the special-shaped nut, the special-shaped nut can be freely rotated in the jack, the detection frame plate 16 is positioned on a second special-shaped nut 212, the detection frame plate 16 is also provided with a sensor 17 capable of detecting the number of turns of the second special-shaped nut, specifically, the detection frame plate 16 moves along with the second special-shaped nut 212, the detection frame plate 16 is connected with a transverse sliding shaft, the sliding shaft moves along with the detection frame plate 16, and the detection frame plate can move by the moving distance and the screw pitch of the sliding shaft, the sensor 17 adopts a displacement sensor, and the number of turns of the second opposite-type nut 212 can be calculated by detecting the displacement and combining with the thread pitch; certainly, another structure may also be adopted, the detection frame plate 16 moves along with the second special-shaped nut 212, the top of the detection frame plate 16 is provided with a nut sleeve, a detection screw rod is screwed in the nut sleeve, when the nut sleeve slides along with the detection frame plate 16, the detection screw rod rotates, the sensor 17 adopts a rotation sensor, the rotation number of turns of the detection screw rod is obtained through the rotation sensor, and the rotation number of turns of the second special-shaped nut can be obtained according to the basic principle of thread transmission. The sensor 17 can transmit the number of turns of the second special-shaped nut to the controller, and the controller controls the screwing power device to screw, so that the number of turns of the second special-shaped nut is guaranteed, and the screwing precision of the second special-shaped nut is guaranteed. The dismounting frame 5 is connected with a tension stress monitoring device, the dismounting power mechanism comprises a dismounting oil cylinder 8 connected with the dismounting support frame 3, the tension stress monitoring device comprises a displacement sensor 9 connected with the sliding distance of the monitoring assembly and disassembly stand 5, specifically, the displacement sensor 9 is connected between the end part of a piston rod and the outer wall of the assembly and disassembly oil cylinder 8, a pressure sensor 10 is arranged on the piston rod of the assembly and disassembly oil cylinder 8, specifically, the dismounting oil cylinder 8 is a bidirectional driving oil cylinder with a piston rod extending out of two ends of an oil cylinder sleeve, the inner end of the piston rod is connected with a dismounting frame, a loop platform is arranged on the piston rod at the outer end, a screw rod is screwed at the outer end of the piston rod, the pressure sensor is sleeved on the annular table, the outer end of the pressure sensor is abutted against the head of the screw, through this displacement sensor and pressure sensor's monitoring, fully guarantee to put the dynamics of opening and the extension length of reinforcing bar.
Referring to fig. 2, 5, 6 and 7, a driving rotating sleeve 7 driven by a screwing power device to rotate is rotatably connected to the disassembling support frame 3, and the rotation of the driving rotating sleeve 7 drives a special-shaped nut on the tensioning rod to rotate and abut against the side wall of the mold. The screwing power device comprises a driving rotating sleeve gear 12 which is rotatably connected to the disassembling support frame 3 and driven by a power motor 11, the driving rotating sleeve gear is meshed with a driving gear on a power output shaft of the power motor in the embodiment, the outer wall of the driving rotating sleeve 7 is in power connection with the driving rotating sleeve gear and can be sleeved on the tension rod, a driving rotating head 71 which drives the second special-shaped nut 212 to rotate is arranged at the inner end of the driving rotating sleeve 7, and the driving rotating head 71 can drive the special-shaped nut to rotate and is arranged at the inner end of the driving rotating sleeve 7. The driving rotating sleeve 7 comprises a driving rotating head 71 and a driving sleeve 72 which can be sleeved on a tension rod, in the embodiment, the end of the driving rotating head 71 is a cross-shaped jaw, a second special-shaped nut on the tension rod is a cross-shaped nut, the cross-shaped jaw and the cross-shaped nut are matched to drive the second special-shaped nut, the driving rotating head 71 is in power connection with the driving sleeve 72 through an automatic centering structure, the driving sleeve 72 is in power connection with the driving rotating sleeve gear 12 through a spline, a driving top spring 73 is arranged between the driving sleeve 72 and the dismounting support frame 3, after the tension is finished, a power motor is started to drive the driving rotating sleeve gear 12 to rotate, so that the driving sleeve 72 is driven to rotate, the driving rotating head 71 drives the special-shaped nut to rotate, and the dismounting of the second special-shaped nut 212 can be realized. As is known, because a plurality of steel bars which are criss-cross are prefabricated in the prestressed track slab, in the process of combining a plurality of driving swivels 71 and a plurality of second special-shaped nuts 212, the problem that the driving swivels 71 and the second special-shaped nuts 212 are not concentric inevitably occurs, and the combination is not firm easily, in this embodiment, the automatic centering structure includes two centering studs 13 which are screwed at the outer ends of the driving swivels 71 and are symmetrical along the driving swivels 71, an insertion arm which extends into the driving sleeve 72 and is positioned corresponding to the centering stud 13 is installed on the driving swivels 71, the insertion arm is trapezoidal, a saddle is installed on the driving sleeve 72, a jack (the jack is also trapezoidal) for inserting the insertion arm is installed on the saddle, the insertion arm can slide on the saddle along the radial direction of the driving sleeve 72, the power connection between the driving swivels 71 and the driving sleeve 72 is realized under the matching of the insertion arm and the saddle, a baffle 14 which is sleeved on the centering stud 13 is installed on the base, and the bottom surface of the baffle 14 is in phase with the saddle The centering top spring 15 is arranged between the baffle 14 and the head of the centering stud 13, that is, when the problem that the driving rotor 71 and the second special-shaped nut 212 are not concentric occurs, the driving rotor 71 radially slides for a certain distance through a matching structure of the insertion arm and the insertion hole, and meanwhile, the centering top spring 15 is compressed until the driving rotor 71 is combined with the second special-shaped nut 212.
The present invention is not limited to the above-described embodiments, and it is obvious to those skilled in the art that equivalent changes and component substitutions based on the specific structure of the present invention are within the protection scope of the present invention. The special-shaped nut dismounting device can be used for dismounting special-shaped nuts on other machines.
Claims (6)
1. The utility model provides a mechanical hand is twisted soon to abnormal shape nut, dismantles support frame (3) including two of relative setting, characterized by: the die plate is characterized in that the disassembling support frames (3) are connected with an abutting rod (4) capable of abutting against the die plate, disassembling frames (5) driven by a disassembling power mechanism are correspondingly arranged on the two opposite disassembling support frames (3), disassembling and assembling combination claws (6) for inserting special-shaped nuts on the die plate are arranged at the inner ends of the disassembling frames (5), a detection and protection device capable of detecting the number of turns of the special-shaped nuts and protecting the special-shaped nuts is further arranged on the disassembling support frames (3), the detection and protection device comprises a detection frame plate (16) connected to the disassembling support frames (3), jacks capable of being inserted and sleeved on the outer sides of the special-shaped nuts are formed in the detection frame plate (16), the special-shaped nuts can freely rotate in the jacks, and sensors (17) capable of detecting the number of turns of the special-shaped nuts are further arranged on the detection frame plate (16); dismantle and rotate on support frame (3) and be connected with and change cover (7) by revolving the drive of twisting power device drive pivoted, the drive is changeed cover (7) and is connected through automatic centering structure power including driving turn (71) and driving sleeve (72) that can the suit on the stretch-draw pole, and driving turn (71) is connected through automatic centering structure power with driving sleeve (72), and driving sleeve (72) are changeed set gear (12) power through the spline and are connected, and driving spring (73) are pushed up in the drive to driving sleeve (72) and dismantle and are equipped with between the support frame, and drive turn (71) can order about heterotypic nut and rotate and set up the inner that changes cover (7) in the drive.
2. The profile nut-screwing robot according to claim 1, wherein: the dismounting and mounting combination claw (6) comprises two claw arms correspondingly hinged to two sides of the dismounting and mounting frame, and a limiting driving device which is used for relatively drawing the inner ends of the claw arms close when the two claw arms move inwards and keeping the inner ends of the claw arms away from each other when the two claw arms move outwards is arranged on the dismounting and mounting support frame (3).
3. The profile nut-screwing robot according to claim 2, wherein: the surface of jack catch arm is for being the two planes of turning form setting, spacing drive arrangement is spacing post (31) of connection on dismantling support frame (3), and spacing post laminating is on the surface of jack catch arm.
4. The profile nut-screwing robot according to claim 1, wherein: dismouting power unit is including connecting dismouting hydro-cylinder (8) on dismantling support frame (3), stretch-draw stress monitoring devices is including connecting displacement sensor (9) at the distance of sliding of monitoring dismouting frame (5), pressure sensor (10) are equipped with on the piston rod of dismouting hydro-cylinder (8).
5. The profile nut screwing robot according to any one of claims 1 to 4, wherein: the screwing power device comprises a driving rotating sleeve gear (12) which is rotatably connected to the disassembling support frame (3) and driven by a power motor (11), and the outer wall of the driving rotating sleeve (7) is in power connection with the driving rotating sleeve gear and can be sleeved on the tension rod.
6. The profile nut-screwing robot according to claim 1, wherein: automatic centering structure changes first outer end and changes two centering double-screw bolts (13) of symmetry along the drive including the spiro union, be equipped with on the drive changes the head and stretch into drive sleeve (72) and the arm of inserting that the position corresponds with centering double-screw bolt (13), be equipped with the saddle on drive sleeve (72), be equipped with on the saddle and supply to insert arm male jack and insert the arm and can radially slide along the drive sleeve on the saddle, realize under the cooperation of inserting arm and saddle that the drive changes the head and drive telescopic power and be connected, the bottom surface that the bottom of centering double-screw bolt was equipped with baffle (14) and baffle of suit on the centering double-screw bolt offsets with the saddle, is equipped with centering top spring (15) between baffle (14) and the head of centering double-screw bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210578763.9A CN114654219A (en) | 2022-05-26 | 2022-05-26 | Mechanical hand for screwing special-shaped nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210578763.9A CN114654219A (en) | 2022-05-26 | 2022-05-26 | Mechanical hand for screwing special-shaped nut |
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| Publication Number | Publication Date |
|---|---|
| CN114654219A true CN114654219A (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210578763.9A Pending CN114654219A (en) | 2022-05-26 | 2022-05-26 | Mechanical hand for screwing special-shaped nut |
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| Country | Link |
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| CN (1) | CN114654219A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10244016A1 (en) * | 2002-09-21 | 2004-04-01 | Paul Maschinenfabrik Gmbh & Co | Procedure for tensioning of tensioning components for prestressed concrete components involves anchoring tensioning components on common tensioning plate on screws or spindles outside tensioning frame or formwork |
| CN108274613A (en) * | 2018-03-10 | 2018-07-13 | 山东高速轨道设备材料有限公司 | A kind of tensioning combining mechanism |
| CN108327068A (en) * | 2018-03-10 | 2018-07-27 | 山东高速轨道设备材料有限公司 | Pre-stress rail plate reinforced bar stretching machine |
| CN108656339A (en) * | 2018-06-11 | 2018-10-16 | 湖北工业大学 | A kind of pipe pile mould automatic Tensioning device |
| CN111251439A (en) * | 2020-03-31 | 2020-06-09 | 中铁三局集团有限公司 | Automatic and unmanned production system and production method for double-block type sleeper |
| CN113865982A (en) * | 2020-06-30 | 2021-12-31 | 四川大学 | Device and method for detecting anti-pushing capacity of handrail |
-
2022
- 2022-05-26 CN CN202210578763.9A patent/CN114654219A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10244016A1 (en) * | 2002-09-21 | 2004-04-01 | Paul Maschinenfabrik Gmbh & Co | Procedure for tensioning of tensioning components for prestressed concrete components involves anchoring tensioning components on common tensioning plate on screws or spindles outside tensioning frame or formwork |
| CN108274613A (en) * | 2018-03-10 | 2018-07-13 | 山东高速轨道设备材料有限公司 | A kind of tensioning combining mechanism |
| CN108327068A (en) * | 2018-03-10 | 2018-07-27 | 山东高速轨道设备材料有限公司 | Pre-stress rail plate reinforced bar stretching machine |
| CN108656339A (en) * | 2018-06-11 | 2018-10-16 | 湖北工业大学 | A kind of pipe pile mould automatic Tensioning device |
| CN111251439A (en) * | 2020-03-31 | 2020-06-09 | 中铁三局集团有限公司 | Automatic and unmanned production system and production method for double-block type sleeper |
| CN113865982A (en) * | 2020-06-30 | 2021-12-31 | 四川大学 | Device and method for detecting anti-pushing capacity of handrail |
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