Positioning device and positioning method for electromechanical accessory machining

Abstract

The invention discloses a positioning device and a positioning method for machining electromechanical accessories, and belongs to the technical field of workpiece positioning. The device comprises a mounting seat mounted on a machine tool; the clamping mechanism comprises a first clamping piece installed at one end of the installation base, a second clamping piece is horizontally installed on the installation base in a sliding mode, and the first clamping piece and the second clamping piece are used for clamping a long pipe; and the quantifying mechanism is arranged on the mounting base, and the quantifying mechanism can adjust the moving amount of the second clamping piece towards the first clamping piece. After the machine tool completes cutting of the long pipe, the first clamping piece loosens clamping of the long pipe through the driving assembly at the moment, then the second clamping piece only needs to be moved until the second clamping piece cannot move, then the first clamping piece tightens the long pipe through the driving assembly, and therefore the extending length of the long pipe does not need to be repeatedly calibrated. And the time consumed for quantitatively cutting the long pipe is effectively shortened.

Description

Technical Field

[0001] This invention relates to the field of workpiece positioning technology, and in particular to a positioning device and positioning method for machining electromechanical parts. Background Technology

[0002] In the field of electromechanical component processing, pipe parts, as common structural and functional components, directly affect the assembly quality and production cost of the entire product through the precision and efficiency of their fixed-length cutting process. Currently, when cutting electromechanical pipes into equal sections on various machine tools, there are two main workpiece feeding methods: one is that the operator manually completes a cyclical operation of loosening, measuring, shifting, and re-clamping; the other is that the CNC system moves the entire machine tool table to achieve workpiece repositioning.

[0003] Manual adjustment is not only labor-intensive but also time-consuming during clamping and measurement. While positioning via a moving machine table allows for quantitative movement, the support distance between the cutting end and the fixture needs to be kept short to prevent radial runout or swaying of the pipe during cutting due to excessive pipe overhang. This leads to an inherent drawback: after the pipe end near the fixture has been cut segment by segment, the pipe must be extended again for re-alignment and calibration before work can continue. This process essentially requires repeated calibration cycles for long pipes, which is not only cumbersome and inconvenient but also severely restricts the efficiency of continuous processing and the convenience of handling long pipes. Summary of the Invention

[0004] This invention provides a positioning device and positioning method for machining electromechanical parts, which can solve the problem in the prior art that repeated calibration is required when continuously cutting tube workpieces, affecting the production efficiency of parts.

[0005] A positioning device for machining electromechanical parts includes: a mounting base mounted on a machine tool; a clamping mechanism including a first clamping member mounted on one end of the mounting base, and a second clamping member horizontally slidably mounted on the mounting base, the first clamping member and the second clamping member being used to clamp a long tube; a metering mechanism disposed on the mounting base, the metering mechanism being able to adjust the amount by which the second clamping member moves toward the first clamping member, and when the metering mechanism is adjusted, each movement of the second clamping member moves by the length adjusted by the metering mechanism; and a driving component mounted on the mounting base and acting on the first clamping member, the driving component controlling the clamping and releasing of the long tube by the first clamping member.

[0006] Furthermore, the quantitative mechanism includes a movable seat that is horizontally slidably mounted on the mounting base, a movable plate that is horizontally slidably inserted on the movable seat, a limiting member for limiting the movement of the movable plate that is mounted on the movable seat, a limiting plate that is constructed on the movable plate, a limiting surface that is opposite to the limiting plate that is mounted on the movable seat, a folding drive plate that is horizontally slidably mounted on the mounting base between the limiting surface and the limiting plate, and a conversion member that is installed between the folding drive plate and the second clamping member. When the second clamping member moves, the folding drive plate is driven to move synchronously in the opposite direction through the conversion member.

[0007] Furthermore, the conversion component includes two drive rollers rotatably mounted on the mounting base, a horizontal drive belt is driven between the two drive rollers, the top horizontal surface of the drive belt is connected to the second clamping component, and the bottom horizontal surface of the drive belt is connected to the folding drive plate.

[0008] Furthermore, an installation cylinder is installed on one side of the movable seat, and a wedge plate is elastically slidably installed at the bottom end of the installation cylinder. A limiting plate is provided on the installation seat, and multiple wedge-shaped grooves are opened at the top end of the limiting plate. The wedge plate is inserted into the wedge-shaped grooves.

[0009] Furthermore, the limiting plate is slidably mounted on the mounting base, the top end of the limiting plate is provided with a groove, the wedge-shaped tooth groove is formed in the groove, and a pneumatic component is mounted on the mounting base. The pneumatic component is used to drive the movable seat to move and drive the limiting plate to move in the direction of the wedge-shaped plate.

[0010] Furthermore, the pneumatic assembly includes a first air inlet pipe mounted on the mounting base. A conversion assembly communicating with the first air inlet pipe is disposed within the mounting base. Multiple air cylinders are mounted on the mounting base. A piston rod connected to a limiting plate is slidably inserted into one end of each air cylinder. The multiple air cylinders are connected via a first connecting pipe, which communicates with the conversion assembly. A U-shaped groove is constructed on the mounting base. Two parallel sections of the U-shaped groove are along their length, while two distant sections are outwardly arc-shaped and smoothly transition to their ends along their length. A U-shaped rope is movably disposed within the U-shaped groove. A connecting plate connected to a movable seat is mounted on one horizontal section of the U-shaped rope, and a pneumatic block is mounted on the other horizontal section. A connecting groove is provided on the mounting base. The horizontal section of the U-shaped groove with the pneumatic block communicates with the connecting groove. The two outwardly arc-shaped sections of the U-shaped groove are in contact with the U-shaped rope. A second connecting pipe connects the connecting groove to the conversion assembly.

[0011] Furthermore, the limiting member includes a pressure plate that is vertically slidably mounted on the movable seat, and a tightening screw is vertically rotatably mounted on the movable seat, with the pressure plate threaded onto the tightening screw.

[0012] Furthermore, one end of the mounting base has a through hole for the long tube to pass through. The first clamping member includes multiple rotating clamps rotatably mounted on the movable base via a circular array of shafts. The rotating clamps are staggered. A drive gear is mounted on the shaft. An external gear ring meshing with the multiple drive gears is rotatably mounted on the mounting base. An air intake chamber coaxial with one of the shafts is constructed on the mounting base. One end of the shaft coaxial with the air intake chamber is constructed with a pneumatic plate located inside the air intake chamber. The shaft is located inside the air intake chamber, which is arc-shaped. A second air intake pipe communicating with the air intake chamber is mounted on the mounting base. An air valve is mounted on the second air intake pipe. A connecting pipe is connected between the second air intake pipe and the first air intake pipe via a T-joint.

[0013] Furthermore, the second clamping member includes a movable frame plate that is horizontally slidably mounted on the mounting base. The movable frame plate is fixedly fitted onto the horizontal section above the transmission belt. A mounting bracket is mounted on the top of the movable frame plate. Multiple clamping plates for clamping the periphery of the long tube are slidably mounted in a circular array on the mounting bracket. A drive screw is rotatably mounted on the mounting bracket. A drive block is threaded onto the drive screw. A hinge rod is hinged between the clamping plate and the drive block.

[0014] A positioning method for machining electromechanical parts, the aforementioned positioning device for machining electromechanical parts includes the following steps: S1: Pass the long tube through the first clamping member and use the drive assembly to make the first clamping member hold the long tube and leave the length to be cut. Then move the second clamping member so that the second clamping member presses against one end of the long tube and holds the long tube. S2: Adjust the metering mechanism according to the required length of the pipe to be cut, and cut the part of the first clamping member that is exposed in the long pipe after adjusting the metering mechanism; S3: After the cutting is completed, the clamping of the long tube is released by the drive component, and then the second clamping member is moved. Under the action of the quantitative mechanism, the second clamping member moves to the distance adjusted by the quantitative mechanism. Then, the first clamping member is clamped again by the drive component for the next cutting.

[0015] Beneficial effects: After the machine tool completes the cutting of the long tube, the first clamping member is released from the long tube by the drive component. Then, the second clamping member is moved until it can no longer be moved. Then, the first clamping member is tightened to the long tube by the drive component. This eliminates the need to repeatedly calibrate the length of the extended long tube, effectively reducing the time spent on quantitative cutting of the long tube. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a diagram illustrating the structure of the long tube after installation according to the present invention. Figure 3 For the present invention Figure 2 Partial three-dimensional sectional view; Figure 4 For the present invention Figure 1 Partial three-dimensional sectional view; Figure 5 For the present invention Figure 1 Another perspective illustration; Figure 6 For the present invention Figure 5 Partial three-dimensional sectional view; Figure 7 For the present invention Figure 1 Another perspective illustration; Figure 8 For the present invention Figure 7 Partial three-dimensional sectional view; Figure 9 For the present invention Figure 6 Enlarged view of the structure at point A in the middle; Figure 10 For the present invention Figure 8 Enlarged view of the structure at point B in the middle; Figure 11 For the present invention Figure 4 Enlarged view of the structure at point C; Figure 12 This is a schematic diagram of the first part of the structure of the present invention; Figure 13 This is a schematic diagram of the second part of the structure of the present invention; Figure 14 This is a schematic diagram of the second part of the structure of the present invention; Figure 15 This is a schematic diagram of the third part of the present invention; Figure 16 Figure for this invention Figure 15 Partial three-dimensional sectional view; Figure 17 For the present invention Figure 15 Another partial sectional view; Figure 18 This is a schematic diagram of the fourth part of the present invention; Figure 19 For the present invention Figure 18 Partial three-dimensional sectional view.

[0017] Explanation of reference numerals in the attached figures: 1. Mounting base; 2. First clamping component; 201. Shaft; 202. Rotating clamping plate; 203. Drive gear; 204. External gear ring; 3. Second clamping component; 301. Moving frame plate; 302. Mounting bracket; 303. Clamping plate; 304. Drive screw; 305. Drive block; 306. Hinge rod; 4. Measuring mechanism; 401. Moving base; 402. Moving plate; 403. Limiting component; 4031. Pressing plate; 4032. Tightening screw; 404. Limiting surface; 405. Limiting plate; 406. Folding drive plate; 4061. Transmission plate; 4062. Actuating plate; 4063. Insert rod; 4064. Contact spring; 4065. Slot; 407. Converter; 4071. Transmission roller; 4072. Transmission belt; 40 8. Mounting cylinder; 409. Wedge plate; 4010. Limiting plate; 4011. Wedge-shaped groove; 4012. Groove; 5. Drive assembly; 501. Air inlet chamber; 502. Pneumatic plate; 503. Air valve; 504. Connecting pipe; 505. Second air inlet pipe; 6. Pneumatic assembly; 601. First air inlet pipe; 602. Conversion assembly; 603. Air cylinder; 604. Piston rod; 605. First connecting pipe; 606. Hobbit groove; 607. Hobbit rope; 608. Connecting plate; 609. Connecting groove; 6010. Pneumatic block; 6011. Second connecting pipe; 7. Perforation; 8. Sliding groove; 9. Support plate; 10. Turntable; 11. Knob rod; 12. Torsion spring; 13. Circular cavity; 14. Air inlet; 15. Protruding plate; 16. Protrusion. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0019] like Figures 1 to 19 As shown in the figure, an embodiment of the present invention provides a positioning device for machining electromechanical parts, comprising: Mounting base 1 is installed on a machine tool. Mounting base 1 of this application can be installed on machine tools such as EDM machines, drilling machines, milling machines and lathes that can cut long tubes. The clamping mechanism includes a first clamping member 2 installed at one end of the mounting base 1, and a second clamping member 3 horizontally slidably installed on the mounting base 1. The first clamping member 2 and the second clamping member 3 are used to clamp a long tube. The drive assembly 5 is installed on the mounting base 1 and acts on the first clamping member 2. The drive assembly 5 controls the clamping of the first clamping member 2 on the long tube. That is, after the mounting base 1 is installed on the machine tool, one end of the long tube is clamped on the second clamping member 3, and the second clamping member 3 is moved to control the length of the other end of the long tube after passing through the first clamping member 2. After adjustment, the drive assembly 5 clamps the long tube to complete the installation of the long tube. It should be noted that this application does not impose specific limitations on the clamping structure of the second clamping member 3. It can be any clamping structure that can meet the clamping requirements of long tubes, such as the existing three-jaw chuck. In this application, the second clamping member 3 includes a movable frame plate 301 that is horizontally slidably mounted on the mounting base 1. The movable frame plate 301 is fixedly fitted on the horizontal section above the transmission belt 4072. A mounting bracket 302 is mounted on the top of the movable frame plate 301. A plurality of clamping plates 303 for clamping the periphery of the long tube are slidably mounted in a circular array on the mounting bracket 302. The clamping ends of the clamping plates 303 are cylindrical to improve the clamping effect. A drive screw 304 is rotatably mounted on the mounting bracket 302. A drive block 305 is threadedly fitted on the drive screw 304. A hinge rod 306 is hinged between the clamping plate 303 and the drive block 305. Common pipe clamps, such as three-jaw chucks, have a through hole in the middle. This makes it difficult for long pipe ends smaller than the through hole to properly contact the end face of the three-jaw chuck. It is also inconvenient to judge the coaxiality of the long pipe based on the gap between the end face of the long pipe and the end face of the three-jaw chuck. In this application, after the long pipe is fully attached to one end of the mounting bracket 302, the drive screw 304 is rotated to drive the drive block 305 to move. The drive block 305 is hinged to the clamping plate 303 by the hinge rod 306, which plays a limiting role. Therefore, the drive block 305 will move along the axis of the drive screw 304. Thus, the multiple clamping plates 303 move closer or further away from each other to the middle of the mounting bracket 302 by the pulling or pushing of the multiple hinge rods 306, thereby achieving the clamping and fixing of the long pipe. After clamping, one end of the long pipe is attached to the mounting bracket 302, indicating that the long pipe is in a horizontal state at this time. A quantitative mechanism 4 is mounted on the mounting base 1. The quantitative mechanism 4 can adjust the amount by which the second clamping member 3 moves toward the first clamping member 2. After the quantitative mechanism 4 is adjusted, the second clamping member 3 moves by the length adjusted by the quantitative mechanism 4 each time it moves. After the long tube is clamped by the first clamping member 2 and the second clamping member 3, the quantitative mechanism 4 is then adjusted. The quantitative mechanism 4 can control the distance that the second clamping member 3 moves toward the first clamping member 2 each time. After the machine tool completes the cutting of the long tube, the first clamping member 2 is released from the clamping of the long tube by the drive component 5. Then, the second clamping member 3 only needs to be moved until it can no longer be moved. Then, the first clamping member 2 is tightened onto the long tube by the drive component 5. This eliminates the need to repeatedly calibrate the length of the extended long tube, effectively improving the time spent on quantitative cutting of the long tube.

[0020] like Figure 1 , Figures 15 to 19 As shown, in some embodiments, the metering mechanism 4 includes a movable seat 401 horizontally slidably mounted on the mounting base 1. A movable plate 402 is horizontally slidably inserted into the movable seat 401. A limiting member 403 for limiting the movement of the movable plate 402 is mounted on the movable seat 401. A limiting plate 405 is constructed on the movable plate 402. The movable seat 401 has a limiting surface 404 opposite to the limiting plate 405. A folding drive plate 406 located between the limiting surface 404 and the limiting plate 405 is horizontally slidably mounted on the mounting base 1. Specifically, as shown... Figure 19 As shown, the folding drive plate 406 includes a transmission plate 4061 horizontally slidably mounted on the mounting base 1. One end of the transmission plate 4061 is located outside the mounting base 1 and an execution plate 4062 is vertically rotatably mounted thereon. The execution plate 4062 is located between the limiting surface 404 and the limiting plate 405. A rod 4063 is slidably inserted into the free end of the execution plate 4062. A contact spring 4064 is installed between the rod 4063 and the interior of the execution plate 4062. One end of the transmission plate 4061 has a slot 4065 for inserting the rod 4063. A conversion member 407 is installed between the folding drive plate 406 and the second clamping member 3. When the second clamping member 3 moves, the conversion member 407 drives the folding drive plate 406 to move synchronously in the opposite direction. Preferably, as shown in the figure... Figure 15As shown, the movable base 401 is provided with an indicator groove, and one side of the movable plate 402 is provided with a scale, which makes it easier for the staff to intuitively know the moving length of the movable plate 402. After the movable plate 402 is adjusted, the movable plate 402 is fixed on the movable base 401 by the limiting member 403. Preferably, in order to ensure that the limiting member 403 can be successfully positioned after the movable plate 402 is adjusted, the limiting member 403 includes a pressure plate 4031 that is vertically slidably installed on the movable base 401, and a tightening screw 4032 that is vertically rotatably installed on the movable base 401. 1. The threaded sleeve is fitted onto the tightening screw 4032. This means that tightening the screw 4032 causes the pressure plate 4031 to abut against the moving plate 402, thereby increasing the frictional force between the moving plate 402 and the moving seat 401, thus limiting the movement of the moving plate 402. This adjustment method allows for more precise adjustment of the moving plate 402. The pressure plate 4031, in conjunction with the tightening screw 4032, can limit the movement of the moving plate 402 at any time. Because there is a certain distance between the bottom surface of the moving plate 402 and the bottom of the mounting seat 1, to improve the stability of the moving plate 402, the moving plate 402... A sliding groove 8 is provided at one end, and a support plate 9 is vertically slidably installed in the sliding groove 8 by means of a spring. When the moving plate 402 extends, the bottom of the support plate 9 elastically abuts against the mounting base 1, which can provide a certain support. The support plate 9 can also be moved into the sliding groove 8 when lifted upwards, preventing the moving plate 402 from extending too little and causing interference between the support plate 9 and the moving base 401. After the moving plate 402 is adjusted, when a cut is completed and the first clamping member 2 is not in the state of clamping the long tube, pushing the second clamping member 3 will cause the transmission plate 4061 to move under the action of the conversion member 407, thereby driving the execution plate 4062. The actuator 4062 moves until it changes from contacting the limiting surface 404 to contacting the limiting plate 405, thereby achieving quantitative movement of the long tube. During this process, the moving seat 401 does not move. After the directional movement of the long tube is completed, the first clamping member 2 clamps the long tube and cuts it. During this process, the moving seat 401 can be moved so that the limiting surface 404 of the moving seat 401 is in contact with the actuator 4062. In this way, when the second clamping member 3 needs to be moved next time, it is only necessary to move the actuator 4062 from contacting the limiting surface 404 to contacting the limiting plate 405. The movement is quick and convenient to use.

[0021] like Figures 15 to 19As shown, to prevent accidental movement of the moving seat 401 when the execution plate 4062 is moved to fit against the limiting plate 405, which could lead to errors in subsequent cutting, an installation cylinder 408 is installed on one side of the moving seat 401. A wedge plate 409 is elastically slidably installed at the bottom end of the installation cylinder 408. Specifically, a spring is installed between the wedge plate 409 and the installation cylinder 408. A limiting plate 4010 is provided on the mounting seat 1. The top end of the limiting plate 4010 has multiple wedge-shaped grooves 4011, and the wedge plate 409 is inserted into the wedge-shaped grooves 4011. Figure 1 and Figure 15 As shown, when the moving seat 401 is moved from left to right, the inclined surface of the wedge plate 409 contacts the inclined surface of the wedge tooth groove 4011. Thus, when pressure is applied to the moving plate 402, the wedge plate 409 will overcome the elastic force of the spring and force the wedge plate 409 to move vertically back and forth. When the actuator plate 4062 contacts the limit plate 405, the spring can prevent the operator from applying too much force to the second clamping member 3 and accidentally causing the moving seat 401 to move.

[0022] like Figure 4 and Figures 15 to 19 As shown, to further improve the limiting effect on the movable seat 401, the limiting plate 4010 is slidably mounted on the mounting base 1. The top end of the limiting plate 4010 has a groove 4012, and the wedge-shaped groove 4011 is formed in the groove 4012. A pneumatic assembly 6 is installed on the mounting base 1. The pneumatic assembly 6 is used to drive the movable seat 401 to move and drive the limiting plate 4010 to move towards the wedge plate 409. That is, after the movable seat 401 is in place, the pneumatic assembly 6 can realize the movement of the limiting plate 4010. When the limiting plate 4010 moves, the groove 4012 will abut against one end face of the wedge plate 409, thereby increasing the friction between them and making it more difficult for the wedge plate 409 to move vertically, so as to effectively prevent the movable seat 401 from moving. The pneumatic assembly 6 can also realize the movement of the movable seat 401. In this way, the movable seat 401 does not need to be manually moved during the pipe cutting process, making it more convenient to use.

[0023] like Figure 1 and Figure 19 As shown, in some embodiments, the conversion element 407 includes two drive rollers 4071 rotatably mounted on the mounting base 1. Each drive roller 4071 includes a rod and a synchronous pulley fitted onto the rod. A horizontal drive belt 4072 is driven between the two drive rollers 4071. The top horizontal surface of the drive belt 4072 is connected to the second clamping member 3, and the bottom horizontal surface of the drive belt 4072 is connected to the folding drive plate 406. That is, as... Figure 1As shown, when the second clamping member 3 moves from right to left, it pushes the long tube to extend. At this time, the top of the transmission belt 4072 moves from right to left, while the bottom horizontal section of the transmission belt 4072 moves from left to right. Thus, when the second clamping member 3 moves a fixed distance, the actuator plate 4062 moves synchronously in the opposite direction. After the actuator plate 4062 moves to contact the limiting plate 405, the long tube extends by the same amount. It should be noted that the transmission belt 4072 can be a belt, a chain, a chain plate, or a chain rope, but the second clamping member 3 and the actuator plate 4072 move synchronously in the opposite direction. The folding drive plate 406 moves horizontally and will not move to the bent part of the transmission belt 4072. Furthermore, the folding drive plate 406 and the second clamping member 3 are diagonally opposite each other, which can maximize the stroke of the reverse synchronous movement. When the long tube is cut and the moving seat 401 needs to be moved from left to right to achieve reset, the insert rod 4063 is pulled to disengage the insert rod 4063 from the corresponding slot 4065. Then, the execution plate 4062 is rotated so that the execution plate 4062 is no longer located between the limiting surface 404 and the limiting plate 405, so as not to interfere with the movement and reset of the moving seat 401.

[0024] like Figure 1 , Figures 9 to 11As shown, in some embodiments, the pneumatic assembly 6 includes a first air inlet pipe 601 mounted on the mounting base 1. The mounting base 1 contains a conversion assembly 602 communicating with the first air inlet pipe 601. Multiple air cylinders 603 are mounted on the mounting base 1. One end of each air cylinder 603 is slidably fitted with a piston rod 604 connected to a limiting plate 4010. The multiple air cylinders 603 are connected via a first connecting pipe 605, which communicates with the conversion assembly 602. The mounting base 1... The upper structure has a spiral groove 606. Two parallel sections along the length of the spiral groove 606 are separated by two outwardly curved sections that smoothly transition to the two ends along the length. A spiral rope 607 is movably disposed within the spiral groove 606. A connecting plate 608, connected to the movable seat 401, is mounted on one horizontal section of the spiral rope 607, and a pneumatic block 6010 is mounted on the other horizontal section. The mounting seat 1 has a connecting groove 609. The spiral groove 606 has a horizontal section with the pneumatic block 6010 connecting to the connecting groove 609. The groove 609 is connected, and the two arc-shaped sections of the outer part of the groove 606 fit with the loop rope 607. A second connecting pipe 6011 connects the groove 609 and the conversion component 602. The conversion component 602 can be an existing two-position three-way valve. The first air inlet pipe 601 is connected to the two-position three-way valve, and the first connecting pipe 605 and the second connecting pipe 6011 are also connected to the two-position three-way valve. In this embodiment, for easier use, two interconnected circular cavities 13 are provided on the mounting base 1. The bottom circular cavity 13 can be rotated horizontally. A turntable 10 with one flat end is mounted on the top of the turntable 10. A knob 11 located outside the mounting base 1 is constructed on the top of the turntable 10. The knob 11 is elastically connected to the mounting base 1 by a torsion spring 12. The interior of the turntable 10 is hollow, and air inlets 14 are provided in the middle of the outer periphery and the bottom, and the air inlets 14 are interconnected. A first air inlet pipe 601 is connected to the bottom circular cavity 13 and is connected to the bottom air inlet 14 of the turntable 10. A first connecting pipe 605 is connected to one side of the bottom circular cavity 13, and a second connecting pipe 6011 is connected to the other side of the circular cavity 13 (e.g., ...). Figure 9 (As shown).

[0025] Under normal conditions, the air inlet 14 on one side of the turntable 10 is connected to the first connecting pipe 605, resulting in high-pressure gas in the air cylinder 603. This high-pressure gas causes one side of the groove 4012 to contact one side of the wedge plate 409. When the moving seat 401 needs to be moved, rotating the knob 11 will connect the air inlet 14 on one side of the turntable 10 to the second connecting pipe 6011, thus releasing the contact between the groove 4012 and the wedge plate 409. At this point, the connecting groove 609 contains high-pressure gas, which enters the horizontal section of the U-shaped groove 606 containing the pneumatic block 6010, thereby causing the pneumatic block... When the pneumatic block 6010 moves, it drives the loop rope 607 to move, thereby moving the movable seat 401. At this time, the knob is released, and the knob is reset under the action of the torsion spring 12, so that the movable seat 401 is quickly limited and easy to use. Specifically, two protrusions 15 are installed on the mounting base 1, and the knob rod 11 is constructed with a protrusion 16 for contacting the protrusions 15, which serves to limit the rotation angle of the knob rod 11. In this way, when it is necessary to move the movable seat 401, it is only necessary to turn the knob rod 11 to the end and then release the knob rod 11. Compared with the use of a two-position three-way valve, it is more convenient to use.

[0026] like Figure 2 , Figure 3 , Figure 7 and Figure 11As shown, in some embodiments, one end of the mounting base 1 has a through hole 7 for a long tube to pass through. The first clamping member 2 includes multiple rotating clamping plates 202 rotatably mounted on the movable base 401 via a circular array of shafts 201. The rotating clamping plates 202 are staggered. A drive gear 203 is mounted on the shaft 201. An external gear ring 204 that meshes with the multiple drive gears 203 is rotatably mounted on the mounting base 1. The mounting base 1 has an air intake chamber 501 coaxial with one of the shafts 201. One end of the shaft 201 coaxial with the air intake chamber 501 is equipped with a pneumatic plate 502 located inside the air intake chamber 501. The air intake chamber 501 is arc-shaped. A second air intake pipe 505 communicating with the air intake chamber 501 is installed on the mounting base 1. An air valve 503 is installed on the second air intake pipe 505. The second air intake pipe 505 and the first air intake pipe 601 are connected by a connecting pipe 504 through a T-joint. In this embodiment, the connecting pipe 504 is externally connected to a high-pressure air pipe, and the first air intake... A pressure control valve can be installed on pipe 601 to prevent excessive pressure inside the first intake pipe 601 from accidentally pushing the actuator plate 4062 when the subsequent moving seat 401 moves. When the air valve 503 opens, high-pressure gas enters the second intake pipe 505, thus allowing high-pressure gas to enter the intake chamber 501, forcing the pneumatic plate 502 to move. The movement of the pneumatic plate 502 drives one of the shafts 201 to rotate. Because the drive gear 203 is mounted on the shaft 201 and meshes with the external gear ring 204, this achieves... Multiple shafts 201 rotate, causing multiple rotating clamps 202 to simultaneously clamp the long tube. It should be noted that when the air valve 503 is closed, the gas in the air inlet chamber 501 will be discharged to the outside air. A pressure relief valve connected to the air inlet chamber 501 can be installed on the mounting base 1. When the air valve 503 is closed, the pressure relief valve will slowly discharge the gas in the air inlet chamber 501. Similarly, a pressure relief valve is also installed on the first connecting pipe 605. When the airflow inside the first connecting pipe 605 is not flowing, the pressure relief valve will discharge the airflow inside the connecting pipe.

[0027] like Figures 1 to 19 As shown, a positioning method for machining electromechanical parts, the aforementioned positioning device for machining electromechanical parts includes the following steps: S1: Pass the long tube through the first clamping member 2 and use the driving assembly 5 to make the first clamping member 2 clamp the long tube and leave the length to be cut. Then move the second clamping member 3 so that the second clamping member 3 presses against one end of the long tube and clamps the long tube. S2: Adjust the metering mechanism 4 according to the required length of the pipe to be cut. After adjusting the metering mechanism 4, cut the part of the first clamping member 2 that is exposed in the long pipe. S3: After the cutting is completed, the clamping of the long tube is released by the drive component 5, and then the second clamping member 3 is moved. Under the action of the quantitative mechanism 4, the second clamping member 3 moves to the distance adjusted by the quantitative mechanism 4. Then, the first clamping member 2 is clamped again by the drive component 5 for the next cutting.

[0028] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A positioning device for machining of electromechanical fittings, characterized in that, The utility model relates to a long pipe clamping and folding device, which comprises the following parts: A mounting base (1) is mounted on a machine tool; A clamping mechanism comprises a first clamping piece (2) mounted at one end of the mounting base (1), and a second clamping piece (3) horizontally slidingly mounted on the mounting base (1), wherein the first clamping piece (2) and the second clamping piece (3) are used for clamping a long pipe; A quantifying mechanism (4) is arranged on the mounting base (1), and the quantifying mechanism (4) can adjust the amount of movement of the second clamping piece (3) towards the first clamping piece (2), so that the second clamping piece (3) moves by the length adjusted by the quantifying mechanism (4) each time after the quantifying mechanism (4) is adjusted; A driving assembly (5) is mounted on the mounting base (1) and acts on the first clamping piece (2) to control the loosening of the long pipe by the first clamping piece (2).

2. A positioning device for machining of electromechanical fittings as claimed in claim 1, characterized in that, The quantifying mechanism (4) comprises a moving base (401) horizontally slidingly mounted on the mounting base (1), a moving plate (402) horizontally slidingly inserted on the moving base (401), a limiting piece (403) mounted on the moving base (401) and used for limiting the movement of the moving plate (402), a limiting plate (405) arranged on the moving plate (402), a limiting surface (404) opposite to the limiting plate (405) on the moving base (401), a folding driving plate (406) horizontally slidingly mounted on the mounting base (1) and located between the limiting surface (404) and the limiting plate (405), and a conversion piece (407) mounted between the folding driving plate (406) and the second clamping piece (3), so that the folding driving plate (406) is driven to move reversely synchronously by the conversion piece (407) when the second clamping piece (3) moves.

3. A positioning device for machining of electromechanical fittings as claimed in claim 2, characterized in that The conversion piece (407) comprises two transmission rollers (4071) rotationally mounted on the mounting base (1), and a horizontal transmission belt (4072) transmissionally mounted between the two transmission rollers (4071), wherein the top horizontal surface of the transmission belt (4072) is connected with the second clamping piece (3), and the bottom horizontal surface of the transmission belt (4072) is connected with the folding driving plate (406).

4. A positioning device for machining of electromechanical fittings as claimed in claim 2, characterized in that, One side of the moving base (401) is provided with a mounting cylinder (408), and the bottom end of the mounting cylinder (408) is elastically slidingly mounted with a wedge-shaped plate (409); a limiting long plate (4010) is arranged on the mounting base (1), the top end of the limiting long plate (4010) is provided with a plurality of wedge-shaped tooth grooves (4011), and the wedge-shaped plate (409) is inserted into the wedge-shaped tooth grooves (4011).

5. A positioning device for machining of electromechanical fittings as claimed in claim 4, characterized in that, The limiting long plate (4010) is slidingly mounted on the mounting base (1), the top end of the limiting long plate (4010) is provided with a groove (4012), the wedge-shaped tooth grooves (4011) are arranged in the groove (4012), a pneumatic assembly (6) is mounted on the mounting base (1), and the pneumatic assembly (6) is used for driving the moving base (401) to move and driving the limiting long plate (4010) to move towards the wedge-shaped plate (409).

6. A positioning device for machining of electromechanical fittings as claimed in claim 5, characterized in that, The pneumatic assembly (6) comprises a first air inlet pipe (601) mounted on the mounting base (1), the mounting base (1) is provided with a conversion assembly (602) in communication with the first air inlet pipe (601), a plurality of air cylinders (603) are mounted on the mounting base (1), one end of the air cylinder (603) is slidably inserted with a piston rod (604) connected with a limiting long plate (4010), a plurality of air cylinders (603) are connected through a first communication pipe (605), the first communication pipe (605) is in communication with the conversion assembly (602), a back-shaped groove (606) is formed on the mounting base (1), the two sections of the back-shaped groove (606) in the length direction are parallel to each other, the two sections away from each other are in the shape of an outer arc and smoothly transition with the two ends in the length direction, a back-shaped rope (607) is movably arranged in the back-shaped groove (606), one horizontal section of the back-shaped rope (607) is mounted with a connecting plate (608) connected with a moving base (401), the other horizontal section of the back-shaped rope (607) is mounted with a pneumatic block (6010), a communication groove (609) is formed on the mounting base (1), the horizontal section of the back-shaped groove (606) with the pneumatic block (6010) is in communication with the communication groove (609), the two sections of the back-shaped groove (606) in the shape of an outer arc are in contact with the back-shaped rope (607), and the communication groove (609) is in communication with the conversion assembly (602) through a second communication pipe (6011).

7. A positioning device for machining of electromechanical fittings as claimed in claim 2, characterized in that, The limiting piece (403) comprises a pressing plate (4031) vertically and slidably mounted on the moving base (401), and a tightening screw (4032) is vertically and rotatably mounted on the moving base (401), and the pressing plate (4031) is threadedly sleeved on the tightening screw (4032).

8. A positioning device for machining of electromechanical fittings as claimed in claim 6, characterized in that, One end of the mounting base (1) is provided with a through hole (7) for the long pipe to pass through, the first clamping piece (2) comprises a plurality of rotating clamping plates (202) circularly and arrayedly rotatably mounted on the moving base (401) through shaft rods (201), the rotating clamping plates (202) are staggered, a drive gear (203) is mounted on the shaft rod (201), an external gear ring (204) is rotatably mounted on the mounting base (1) and engaged with the plurality of drive gears (203), the driving assembly (5) comprises an air inlet cavity (501) formed on the mounting base (1), the air inlet cavity (501) is coaxial with one of the shaft rods (201), one end of the shaft rod (201) coaxial with the air inlet cavity (501) is provided with a pneumatic plate (502) located in the air inlet cavity (501), the shaft rod (201) is located in the air inlet cavity (501), the air inlet cavity (501) is in the shape of an arc, a second air inlet pipe (505) is mounted on the mounting base (1) and in communication with the air inlet cavity (501), an air valve (503) is mounted on the second air inlet pipe (505), and a butt joint pipe (504) is connected between the second air inlet pipe (505) and the first air inlet pipe (601) through a three-way joint.

9. A positioning device for machining of electromechanical fittings as claimed in claim 3, characterized in that, The second clamping piece (3) comprises a moving frame plate (301) horizontally slidingly installed on the mounting base (1), the moving frame plate (301) is fixedly sleeved on the horizontal section above the transmission belt (4072), the top of the moving frame plate (301) is provided with a mounting rack (302), a plurality of clamping plates (303) for clamping the circumferential side of the long pipe are slidingly installed on the mounting rack (302) in a circular array, a driving screw (304) is rotationally installed on the mounting rack (302), a driving block (305) is threadedly sleeved on the driving screw (304), and a hinged rod (306) is hinged between the clamping plate (303) and the driving block (305).

10. A positioning method for machining of electromechanical fittings, characterized in that, The use of the positioning device for machining electromechanical accessories according to claim 1 comprises the following steps: S1: the long pipe is passed through the first clamping piece (2), the first clamping piece (2) is clamped on the long pipe and a length to be cut is reserved by the driving assembly (5), then the second clamping piece (3) is moved to abut against one end of the long pipe and clamp the long pipe: S2: the dosing mechanism (4) is adjusted according to the length of the pipe to be cut, the exposed part of the long pipe on the first clamping piece (2) is cut after the dosing mechanism (4) is adjusted; S3: after the cutting is completed, the clamping on the long pipe is released by the driving assembly (5), then the second clamping piece (3) is moved, the second clamping piece (3) is moved by the dosing mechanism (4) by the distance adjusted by the dosing mechanism (4), then the first clamping piece (2) is clamped on the long pipe again by the driving assembly (5) for the next cutting.

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