Electric heating tube bending device

Abstract

The present invention discloses an electric heating tube bending device, which belongs to the field of electric heating tube bending, and comprises an operating table and a bending mold movably installed on the upper side of the operating table, wherein a fixing seat is fixedly connected to the upper side of the operating table, a screw driving part is commonly provided on the upper side of the operating table and the inside of the fixing seat, a bending component is provided on the upper side of the operating table, the bending component comprises a movable seat movably overlapped on the upper side of the operating table, three metal springs are fixedly connected to the front side of the movable seat, and a limiting groove is provided on the front side of the fixing seat. The present invention provides a supporting force when a workpiece is bent by means of a provided metal spring, so that the metal spring will change with the deformation degree of the workpiece, and a metal spring is put on the part of the workpiece where the bending is expected, and the metal spring will provide a certain supporting force during the bending process, so as to reduce the stress of the workpiece when it is deformed, and help to avoid the workpiece from being flattened or broken during the bending process.

Description

Technical Field

[0001] The present invention relates to the field of electric heating tube bending, and more specifically, to an electric heating tube bending device. Background Art

[0002] A heat pipe is a highly efficient heat-conducting element and a tubular element used to generate heat energy. It converts electrical energy into thermal energy for heating through the conversion of electrical energy or other energy sources. The heating pipe is usually made of metal materials (such as stainless steel, copper, alloys, etc.). The material can be selected according to different uses and requirements. It transfers heat by filling a closed metal tube with a working liquid (such as water, alcohol or refrigerant) and using the evaporation and condensation cycle of the working liquid.

[0003] Since the phase change process of the working liquid inside the heat pipe involves complex physical reactions, special attention needs to be paid to bending the heat pipe during manufacturing and application to avoid damaging the internal structure of the heat pipe and affecting its performance. Commonly used heating pipe bending methods include hot bending and cold bending. Hot bending is to heat the pipe material to make it soft and plastic, and then apply force to bend it into the desired shape. Cold bending is to apply a large bending force through special bending machinery to change the shape of the pipe. Since the pipe is hard at room temperature, it requires a large force to complete the bending.

[0004] In the prior art, since the heating tubes are bent at a relatively fast speed during mass production, the heating tubes are subjected to complex stresses, which increases the risk of the heating tubes breaking at the bends. If the bending is assisted by heating, the heating tubes may still have defects such as microcracks at the bends due to stress. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide an electric heating tube bending device.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An electric heating tube bending device comprises an operating table and a bending die movably mounted on the upper side of the operating table, wherein a fixing seat is fixedly connected to the upper side of the operating table, a screw driving member is provided on the upper side of the operating table and inside the fixing seat, a bending component is provided on the upper side of the operating table, and the bending component comprises a movable seat movably overlapped on the upper side of the operating table;

[0008] The front side of the movable seat is fixedly connected with a metal spring, and the number of the metal springs is three. The front side of the fixed seat is provided with a limiting groove, and a movable sleeve is slidably connected inside the limiting groove. The movable sleeve is sleeved on the outside of the screw drive component, and the inside of the movable sleeve is fixedly connected with a fixed sleeve, and the number of the fixed sleeves is three. Elastic rings are sleeved on the outsides of the three fixed sleeves. A buffer assembly is provided on the upper side of the operating table, and an adjustment assembly is also provided on the upper side of the operating table.

[0009] Furthermore, the screw drive component is composed of a servo motor, a screw, and a screw nut, and the movable sleeve is sleeved on the outside of the screw nut, the buffer assembly includes a limit bar fixedly connected to the lower side of the movable seat, the movable seat is slidably connected to the upper side of the operating table through the limit bar, the upper side of the operating table is provided with a movable groove, the lower side of the movable seat is fixedly connected to a movable block, the lower side of the movable block is rollingly connected to a plurality of rollers, the movable block is slidably connected in the movable groove through a plurality of rollers, the left side of the movable block is fixedly connected to a first tension spring, and the number of the first tension springs is multiple, and the other ends of the multiple first tension springs are all fixedly connected to the inner left side of the movable groove.

[0010] Furthermore, the adjusting component includes a column fixedly connected to the upper side of the movable sleeve, an extrusion block is fixedly connected to the inner right side of the limiting groove, a pushing member is slidably connected to the inner side of the limiting groove, a first movable groove is opened on the inner lower side of the pushing member, a pressure block is slidably connected to the inner side of the first movable groove, a first pressure spring is fixedly connected to the upper side of the pressure block, and the top end of the first pressure spring is fixedly connected to the inner upper side of the first movable groove. After the pressure block moves, it is extruded and contacted with the extrusion block, and after the pressure block moves, it is extruded and contacted with the column, and a second tension spring is fixedly connected to the left side of the pushing member, and the other end of the second tension spring is fixedly connected to the inner left side of the limiting groove.

[0011] Furthermore, the right side extension rod of the pushing member passes through the right side of the fixed seat, and the movable seat and the side of the front face of the bending mold are jointly provided with a slide groove, and the number of the slide grooves is three, and the interiors of the three slide grooves are slidably connected with sliders, and the three sliders are respectively fixedly connected to the outside of the other ends of the three metal springs, and the interiors of the three sliders are fixedly connected with the same connecting rod, and after the pushing member moves to the right, it is squeezed and contacted with the outside of the connecting rod, and the connecting rod is slidably connected in the three slide grooves, and the three slide grooves are connected.

[0012] Furthermore, a positioning groove is opened on one side of the inner back side of the three slide grooves, a magnetic block is slidably connected to one side of the back side of the three sliders, and the front sides of the three magnetic blocks are fixedly connected to the second pressure springs. The other ends of the three second pressure springs are respectively fixedly connected to the inner side walls of the three sliders. After being pushed by the second pressure springs, the three magnetic blocks are respectively inserted into the three positioning grooves, and a magnet sheet is fixedly connected to the upper side of the operating table. After the three magnetic blocks are rotated, they are magnetically adsorbed to the same magnet sheet.

[0013] Furthermore, a knocking assembly is provided on the upper side of the operating table, and the knocking assembly includes a transmission member arranged on the outside of the screw drive member, and the transmission member is composed of two transmission wheels and a transmission belt sleeved on the outside of the two transmission wheels, one of the transmission wheels is fixedly connected to the outside of the screw, and the other transmission wheel is fixedly connected to a connecting shaft inside, and a plurality of connecting seats are sleeved on the outside of the connecting shaft, and the plurality of connecting seats are fixedly connected to the upper side of the operating table, and a cam is fixedly connected to the right end of the connecting shaft.

[0014] Furthermore, a second movable groove is provided inside the movable seat, and an impact rod is slidably connected inside the second movable groove. A third tension spring is sleeved on the outer side of the impact rod, and the number of the third tension springs is three. A notch is provided on the outer side of the impact rod, and the number of the notches is three. The front and rear ends of the three third tension springs are respectively overlapped on one side of the back side of the second movable groove and the side of the impact rod close to the third tension spring, and an air cooling part is provided inside the movable seat.

[0015] Furthermore, the air-cooling component is composed of a ventilation duct and a fan, the three notches are connected to the same ventilation duct, and the impact rod is pushed to flexibly contact the outer sides of the three metal springs respectively.

[0016] Furthermore, a lubrication assembly is provided on the front side of the movable seat, and the lubrication assembly includes a lubrication box fixedly connected to the front side of the movable seat, a storage cavity is opened inside the lubrication box, and the number of the storage cavities is three, and the three inner surfaces of the lubrication box are opened with through holes, and the number of the through holes is three, and sponge rings are fixedly installed on the three inner surfaces of the lubrication box, and scraper rings are fixedly connected to the three inner surfaces of the lubrication box, and the sponge ring and the scraper ring are respectively located on both sides of the through hole.

[0017] Furthermore, a quantitative component is provided inside the lubrication box, and the quantitative component includes a movable column slidably connected to the inside of a plurality of through holes, a plurality of drainage holes are provided on the outer side of the movable column, an oil drain groove is provided inside the movable column, and the plurality of drainage holes are connected to the same oil drain groove, the lower sides of the plurality of movable columns are inclined, and a third pressure spring is sleeved on the outer side of the movable column, the bottom end of the third pressure spring is fixedly connected to the outer side of the movable column, and the other end of the third pressure spring is fixedly connected to the inside of the through hole on one side close to the storage cavity.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention provides a supporting force when the workpiece is bent by setting a metal spring, so that the metal spring will change with the degree of deformation of the workpiece. Since a metal spring is put on the part of the workpiece where it is expected to bend, the metal spring will provide a certain supporting force during the bending process to reduce the stress of the workpiece when it is deformed, which helps to prevent the workpiece from being flattened or broken during the bending process.

[0020] (2) The movable block provided in the present invention can drive the movable seat to move when the movable seat is pulled, and buffer the movement through the first tension spring. Since the movable seat can move in a small range during the bending process, the inertia of the workpiece can be buffered, which can reduce the fatigue cracks and uneven wall thickness defects of the workpiece at the bending point, thereby ensuring the quality of the workpiece after bending.

[0021] (3) The present invention drives the metal spring to be stretched by the pusher, and the metal spring automatically rebounds after the workpiece is bent. Since the metal spring is stretched during the bending process of the workpiece and rebounds quickly after the bending is completed, fatigue or wear of the metal spring due to long-term stretching is avoided, thereby ensuring that the metal spring can repeatedly provide support force during the bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the cross-section structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the fixing seat of the present invention;

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the fixing seat of the present invention;

[0026] Figure 5 It is a schematic cross-sectional structural diagram of the movable sleeve of the present invention;

[0027] Figure 6 It is a schematic cross-sectional structural diagram of the movable seat of the present invention;

[0028] Figure 7 It is a schematic cross-sectional structural diagram of the lubrication box of the present invention;

[0029] Figure 8 For the present invention Figure 7 A magnified schematic diagram of point A;

[0030] Fig. 9 It is a schematic cross-sectional structural diagram of the movable column of the present invention;

[0031] Fig.10 is a schematic cross-sectional structural diagram of the second movable groove of the present invention;

[0032] Fig.11 It is a schematic cross-sectional structure diagram of the bending mold of the present invention;

[0033] Fig.12 It is a schematic cross-sectional structural diagram of the slider of the present invention.

[0034] Description of the numbers in the figure:

[0035] 1. Operating table; 2. Bending mold; 3. Fixed seat; 4. Screw drive; 5. Bending component; 51. Movable seat; 52. Metal spring; 53. Moving sleeve; 531. Fixed sleeve; 532. Elastic ring; 54. Limiting groove; 55. Buffer assembly; 551. Limiting strip; 552. Moving groove; 553. Moving block; 554. First tension spring; 56. Adjusting assembly; 561. Column; 562. Extrusion block; 563. Pushing member; 564. First movable groove; 565. Pressure block; 566. First pressure spring; 567. Second tension spring; 568. Connecting rod; 569. Slide; 5691. Slider; 5692. Positioning groove; 5693. Magnetic block; 5694. Second pressure spring; 5695. Magnet sheet; 57. Knocking assembly; 571. Transmission member; 572. Connecting shaft; 573. Cam; 574. Second movable groove; 575. Impact rod; 576. Third tension spring; 577. Notch; 578. Air cooling member; 58. Lubrication assembly; 581. Lubrication box; 582. Storage chamber; 583. Through hole; 584. Sponge ring; 585. Scraper ring; 59. Dosing assembly; 591. Movable column; 592. Drainage hole; 593. Oil drain groove; 594. Third pressure spring. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 12 , an electric heating tube bending device, comprising an operating table 1 and a bending die 2 movably mounted on the upper side of the operating table 1, a fixing seat 3 is fixedly connected to the upper side of the operating table 1, a screw drive 4 is provided on the upper side of the operating table 1 and inside the fixing seat 3, characterized in that: a bending component 5 is provided on the upper side of the operating table 1, and the bending component 5 includes a movable seat 51 movably overlapped on the upper side of the operating table 1;

[0038] A metal spring 52 is fixedly connected to the front of the movable seat 51, and the number of the metal springs 52 is three. A limiting groove 54 is provided on the front of the fixed seat 3. A movable sleeve 53 is slidably connected inside the limiting groove 54. The movable sleeve 53 is sleeved on the outer side of the screw drive 4. A fixed sleeve 531 is fixedly connected inside the movable sleeve 53, and the number of the fixed sleeves 531 is three. Elastic rings 532 are sleeved on the outer sides of the three fixed sleeves 531. A buffer assembly 55 is provided on the upper side of the operating table 1, and an adjustment assembly 56 is also provided on the upper side of the operating table 1.

[0039] By adopting the above technical solution, first, after the workpiece passes through the fixed sleeve 531 inside the movable sleeve 53, because the right side of the fixed sleeve 531 is funnel-shaped and movable, when the workpiece passes through the fixed sleeve 531, the right side of the fixed sleeve 531 will be stretched open, and the elastic ring 532 sleeved on the outside of the fixed sleeve 531 will wrap the fixed sleeve 531, and then the servo motor in the screw drive part 4 is started to drive the rotation, so that the screw nut on the outside of the screw drives the movable sleeve 53 to slide in the limiting groove 54 inside the fixed seat 3 according to the external thread of the screw, and when the movable sleeve 53 moves to the right, the right side of the fixed sleeve 531 is locked and drives the workpiece to move to the right, and the movable sleeve 5 When the workpiece moves to the left, the right side of the fixed sleeve 531 is stretched out from the inside to the outside, so that the workpiece stays in the original position. After the workpiece passes through the bending die 2, the workpiece will pass through the metal spring 52 in front of the movable seat 51, so that the metal spring 52 is wrapped around the outside of the workpiece. After the bending die 2 above the operating table 1 is started, the workpiece and the metal spring 52 on the outside will be bent, and the metal spring 52 will change with the deformation degree of the workpiece. Since a metal spring 52 is put on the part of the workpiece that is expected to be bent, the metal spring 52 will provide a certain support force during the bending process to reduce the stress of the workpiece when it is deformed, which helps to prevent the workpiece from being flattened or broken during the bending process.

[0040] like Figure 2 and Figure 6As shown, the screw drive 4 is composed of a servo motor, a screw, and a screw nut, and the movable sleeve 53 is sleeved on the outside of the screw nut, the buffer assembly 55 includes a limit bar 551 fixedly connected to the lower side of the movable seat 51, the movable seat 51 is slidably connected to the upper side of the operating table 1 through the limit bar 551, and a movable groove 552 is opened on the upper side of the operating table 1, and a movable block 553 is fixedly connected to the lower side of the movable seat 51, and a plurality of rollers are rollingly connected to the lower side of the movable block 553, and the movable block 553 is slidably connected in the movable groove 552 through a plurality of rollers, and a first tension spring 554 is fixedly connected to the left side of the movable block 553, and the number of the first tension springs 554 is multiple, and the other ends of the multiple first tension springs 554 are all fixedly connected to the inner left side of the movable groove 552.

[0041] By adopting the above technical solution, firstly, during the bending process of the workpiece, part of the workpiece will contact the movable seat 51, and the inertia generated during the bending process of the workpiece will pull the movable seat 51, so that the movable seat 51 slides above the operating table 1 through the limit bar 551, and at the same time, the moving block 553 below the movable seat 51 will slide in the moving groove 552 above the operating table 1 through the roller, and the moving block 553 will pull the first tension spring 554 while moving, and finally the first tension spring 554 will reset the moving block 553 and the movable seat 51. Since the movable seat 51 can move in a small range during the bending process, the inertia of the workpiece can be buffered, which can reduce the fatigue cracks and uneven wall thickness defects of the workpiece at the bending point, thereby ensuring the quality of the workpiece after bending.

[0042] like Figures 3 to 6 and Fig.11 and Fig.12 As shown, the adjustment component 56 includes a column 561 fixedly connected to the upper side of the movable sleeve 53, a squeezing block 562 is fixedly connected to the inner right side of the limiting groove 54, a pushing member 563 is slidably connected to the inner side of the limiting groove 54, a first movable groove 564 is opened on the inner lower side of the pushing member 563, a pressure block 565 is slidably connected to the inner side of the first movable groove 564, a first pressure spring 566 is fixedly connected to the upper side of the pressure block 565, the top end of the first pressure spring 566 is fixedly connected to the inner upper side of the first movable groove 564, the pressure block 565 is pressed and contacted with the squeezing block 562 after moving, and the pressure block 565 is pressed and contacted with the column 561 after moving, a second tension spring 567 is fixedly connected to the left side of the pushing member 563, and the other end of the second tension spring 567 is fixedly connected to the inner left side of the limiting groove 54.

[0043] The right side extension rod of the pushing member 563 passes through the right side of the fixed seat 3, and the movable seat 51 and one side of the front face of the bending mold 2 are jointly provided with a slide groove 569, and the number of the slide grooves 569 is three, and the interiors of the three slide grooves 569 are all slidably connected with sliders 5691, and the three sliders 5691 are respectively fixedly connected to the outside of the other ends of the three metal springs 52, and the interiors of the three sliders 5691 are fixedly connected with the same connecting rod 568. After the pushing member 563 moves to the right, it is squeezed and contacted with the outside of the connecting rod 568, and the connecting rod 568 is slidably connected in the three slide grooves 569, and the three slide grooves 569 are connected.

[0044] A positioning groove 5692 is provided on one side of the inner back side of the three slide grooves 569, a magnet block 5693 is slidably connected to one side of the back side of the three sliders 5691, and the front sides of the three magnet blocks 5693 are fixedly connected to the second pressure springs 5694, and the other ends of the three second pressure springs 5694 are respectively fixedly connected to the inner side walls of the three sliders 5691. After being pushed by the second pressure springs 5694, the three magnet blocks 5693 are respectively inserted into the three positioning grooves 5692, and a magnet sheet 5695 is fixedly connected to the upper side of the operating table 1. After the three magnet blocks 5693 are rotated, they are magnetically adsorbed to the same magnet sheet 5695.

[0045] By adopting the above technical solution, first, during the movement of the movable sleeve 53 in the limiting groove 54, the column 561 above it will contact the pressure block 565 in the first movable groove 564 inside the pushing member 563. When the column 561 is on the left side of the storage block, the column 561 will drive the pressure block 565 and the pushing member 563 to move rightward. At this time, the pushing member 563 will pull the second tension spring 567. During the contact between the pressure block 565 and the extrusion block 562 inside the limiting groove 54, the pressure block 565 will gradually retract into the first movable groove 564 and The first pressure spring 566 inside the first movable groove 564 is squeezed, and the column 561 will pass through the pressure block 565 to the bottom of the squeezing block 562, and the pushing member 563 will be pulled by the second tension spring 567 to reset. At the same time, the first pressure spring 566 pushes the pressure block 565 out of the first movable groove 564. When the column 561 moves to the left, when it contacts the pressure block 565 again, the pressure block 565 will be pushed into the first movable groove 564. At this time, the column 561 will pass under the pushing member 563. In the process of the pressure block 565 moving left and right, The pusher 563 pushes the connecting rod 568, so that the connecting rod 568 drives the three sliders 5691 to slide in the slide groove 569 provided by the movable seat 51 and the bending die 2 at the same time. Since the slider 5691 is fixed to the metal spring 52, the metal spring 52 is stretched. When the slider 5691 moves to the position of the positioning groove 5692, the second pressure spring 5694 inside the slider 5691 pushes the magnetic block 5693, so that the magnetic block 5693 is pushed into the positioning groove 5692, and the metal spring 52 is stretched. When the bending die 2 is pressed against the workpiece, the metal spring 52 is stretched and the workpiece is pressed. During the bending process, when the magnetic block 5693 and the magnet sheet 5695 above the operating table 1 approach and attract each other, the magnetic block 5693 will be detached from the positioning groove 5692. During the resetting process of the bending component 5, the attraction of the magnet sheet 5695 to the magnetic block 5693 decreases, causing the metal spring 52 to gradually rebound. Since the metal spring 52 is stretched during the bending process of the workpiece, it will rebound quickly after the bending is completed, thereby avoiding fatigue or wear of the metal spring 52 due to long-term stretching, so as to ensure that the metal spring 52 can repeatedly provide support force during the bending process.

[0046] like Figure 4 and Fig.10 As shown, a knocking assembly 57 is provided on the upper side of the operating table 1, and the knocking assembly 57 includes a transmission member 571 arranged on the outside of the screw drive member 4, and the transmission member 571 is composed of two transmission wheels and a transmission belt sleeved on the outside of the two transmission wheels, one of the transmission wheels is fixedly connected to the outside of the screw, and the other transmission wheel is fixedly connected to the inside of a connecting shaft 572, and a plurality of connecting seats are sleeved on the outer side of the connecting shaft 572, and the plurality of connecting seats are fixedly connected to the upper side of the operating table 1, and a cam 573 is fixedly connected to the right end of the connecting shaft 572.

[0047] A second movable groove 574 is provided inside the movable seat 51, and a striking rod 575 is slidably connected inside the second movable groove 574. A third tension spring 576 is sleeved on the outer side of the striking rod 575, and there are three third tension springs 576. A notch 577 is provided on the outer side of the striking rod 575, and there are three notches 577. The front and rear ends of the three third tension springs 576 are respectively overlapped on one side of the inner back side of the second movable groove 574 and on one side of the striking rod 575 close to the third tension spring 576. An air cooling part 578 is provided inside the movable seat 51.

[0048] The air cooling part 578 is composed of a ventilation duct and a fan. The three notches 577 are connected to the same ventilation duct. After being pushed, the impact rod 575 is in active contact with the outer sides of the three metal springs 52 respectively.

[0049] By adopting the above technical solution, firstly, the screw in the screw drive member 4 will drive one of the transmission wheels of the transmission member 571 to rotate during the rotation process. Since the outer side of the transmission wheel on the outer side of the connecting shaft 572 and the transmission wheel on the outer side of the screw are sleeved with the same transmission belt, when the screw is rotated and connected, the connecting shaft 572 will also drive the cam 573 to rotate. During the rotation of the cam 573, the raised part on its surface will repeatedly push the part extending from the impact rod 575 inside the movable seat 51, so that the impact rod 575 is in the second movable groove 574. During the process, the other end of the impact rod 575 will be exposed from the front side of the movable seat 51 and impact the metal spring 52 and the bending area of ​​the workpiece. After the raised end of the cam 573 is separated from the impact rod 575, the second movable groove 574 will be opened. The third tension spring 576 inside the second movable groove 574 will pull the impact rod 575, so that the impact rod 575 is always in contact with the cam 573. At the same time, the air-cooling part 578 inside the movable seat 51 will draw the external airflow through the fan therein, and input the airflow into the notch 577 on the outside of the impact rod 575 through the ventilation duct, and finally blow it to the bending area of ​​the metal spring 52 and the workpiece. Since the workpiece generates friction between the workpiece and the bending mold 2 during the bending process, the bending area will generate heat due to the conversion of mechanical energy into thermal energy, and the airflow blown out by the impact rod 575 can dissipate the heat. At the same time, because the impact rod 575 repeatedly impacts the metal spring 52 and the bending area of ​​the workpiece, the residual stress remaining in the bending area of ​​the workpiece is released.

[0050] like Figures 6 to 8As shown, a lubrication assembly 58 is provided on the front side of the movable seat 51, and the lubrication assembly 58 includes a lubrication box 581 fixedly connected to the front side of the movable seat 51, a storage cavity 582 is provided inside the lubrication box 581, and the number of the storage cavities 582 is three, and the three inner surfaces of the lubrication box 581 are provided with through holes 583, and the number of the through holes 583 is three, and the three inner surfaces of the lubrication box 581 are fixedly installed with sponge rings 584, and the three inner surfaces of the lubrication box 581 are fixedly connected with scraper rings 585, and the sponge rings 584 and the scraper rings 585 are respectively located on both sides of the through holes 583.

[0051] By adopting the above technical solution, first, after the workpiece passes through the lubrication box 581, it will contact the sponge ring 584 inside it, and the sponge ring 584 will clean the impurities remaining on the surface of the workpiece, and the lubricant inside the storage cavity 582 will be discharged through the through hole 583 and applied to the surface of the workpiece. As the workpiece continues to move, the lubricant will be evenly applied to the surface of the workpiece when the lubricant-applied portion passes through the scraper ring 585. Since the lubricant is evenly applied to the surface of the workpiece during the bending process, it can not only reduce the friction of the workpiece, but also reduce the heat and stress generated by the friction, and further prevent the workpiece from being flattened or broken during the bending process.

[0052] like Figure 8 and Fig. 9 As shown, a quantitative component 59 is provided inside the lubrication box 581, and the quantitative component 59 includes a movable column 591 slidably connected inside a plurality of through holes 583, a plurality of drainage holes 592 are provided on the outer side of the movable column 591, an oil drain groove 593 is provided inside the movable column 591, and the plurality of drainage holes 592 are communicated with the same oil drain groove 593, the lower sides of the plurality of movable columns 591 are inclinedly arranged, and a third pressure spring 594 is sleeved on the outer side of the movable column 591, the bottom end of the third pressure spring 594 is fixedly connected to the outer side of the movable column 591, and the other end of the third pressure spring 594 is fixedly connected to the inside of the through hole 583 near the side of the storage chamber 582.

[0053] By adopting the above technical solution, first, after the workpiece reaches the position of the through hole 583, it will push the movable column 591 inside the cylinder, so that the movable column 591 is retracted into the through hole 583, and the third pressure spring 594 inside the through hole 583 is squeezed. When the diameter of the workpiece is different, the degree to which the movable column 591 is retracted into the through hole 583 is also different, resulting in a change in the number of drainage holes 592 exposed to the storage cavity 582. The lubricant inside the storage cavity 582 will enter the movable column 591 through the drainage holes 592, and finally be discharged to the outside of the workpiece through the oil drain groove 593. Since the discharge amount of the lubricant will change with the diameter of the workpiece, it not only ensures the lubricating and cooling effect of the lubricant on the workpiece, but also avoids the pollution of the working environment by the lubricant and the waste of the lubricant itself.

[0054] Working principle: First, after the workpiece passes through the fixed sleeve 531 inside the movable sleeve 53, the right side of the fixed sleeve 531 will be stretched open, and the elastic ring 532 on the outside of the fixed sleeve 531 will wrap the fixed sleeve 531. After the screw drive 4 is started, the movable sleeve 53 will be driven to move to the right, and the workpiece will be driven to move to the right. When the movable sleeve 53 moves to the left, the right side of the fixed sleeve 531 is stretched open from the inside to the outside, so that the workpiece stays in place. After the workpiece passes through the lubrication box 581, it will contact the sponge ring 584 inside it, and the sponge ring 584 will clean the impurities remaining on the surface of the workpiece. When the workpiece reaches the through hole After the position of 583 is reached, the movable column 591 inside the cylinder will be pushed, so that the movable column 591 is retracted into the through hole 583, and the third pressure spring 594 inside the through hole 583 is squeezed. When the diameter of the workpiece is different, the extent to which the movable column 591 is retracted into the through hole 583 is also different, resulting in a change in the number of drainage holes 592 exposed inside the storage chamber 582, and the lubricant inside the storage chamber 582 will enter the movable column 591 through the drainage holes 592, and finally be discharged to the outside of the workpiece through the oil drain groove 593. When the lubricant-applying part passes through the scraper ring 585, the lubricant will be evenly applied to the surface of the workpiece;

[0055] After the workpiece passes through the bending die 2, the workpiece will pass through the metal spring 52 in front of the movable seat 51, so that the metal spring 52 is wrapped around the outside of the workpiece. After the bending die 2 above the operating table 1 is started, the workpiece and the metal spring 52 on the outside of the workpiece will be bent. During the movement of the movable sleeve 53 in the limiting groove 54, the column 561 above it will contact the pressure block 565 in the first movable groove 564 inside the pushing member 563, and the pushing member 563 will be pushed by the pressure block 565. After the pressure block 565 contacts the extrusion block 562, the pressure block 565 will gradually retract into the interior of the first movable groove 564, and the column 561 will pass through the pressure block 565 to the bottom of the extrusion block 562. At the same time, the pusher 563 is pulled back by the second tension spring 567, and the first pressure spring 566 pushes the pressure block 565 out of the first movable groove 564. When the column 561 moves to the left, when it contacts the pressure block 565 again, the pressure block 565 will be pushed into the first movable groove 564. At this time, the column 561 will pass under the pusher 563. As the pusher 563 pushes the connecting rod 568, the connecting rod 568 is pushed. The rod 568 will simultaneously drive the three sliders 5691 to slide in the slide groove 569 provided together with the movable seat 51 and the bending die 2. Since the slider 5691 is fixed to the metal spring 52, the metal spring 52 is stretched. When the second pressure spring 5694 inside the slider 5691 pushes the magnetic block 5693 into the positioning groove 5692, the stretching of the metal spring 52 ends. When the bending die 2 bends the workpiece, when the magnetic block 5693 and the magnet sheet 5695 above the operating table 1 are close to each other and attract each other, the magnetic block 5693 will be pulled out of the positioning groove 5694. 92 is disengaged, and during the resetting process of the bending component 5, the attraction of the magnet sheet 5695 to the magnetic block 5693 decreases, so that the metal spring 52 will gradually rebound, and part of the workpiece will contact the movable seat 51 during the bending process, and the inertia generated during the bending process of the workpiece will pull the movable seat 51, so that the movable seat 51 will slide above the operating table 1 through the limit bar 551 and the moving block 553 under the movable seat 51 through the roller, and finally the first tension spring 554 will reset the moving block 553 and the movable seat 51;

[0056] During the operation of the screw drive 4, the transmission part 571 will be driven to rotate, and the cam 573 will be driven to repeatedly push the part extending from the impact rod 575 inside the movable seat 51, so that the other end of the impact rod will be exposed from the front of the movable seat 51, and impact the bending area of ​​the metal spring 52 and the workpiece, and the third tension spring 576 inside the second movable groove 574 will pull the impact rod 575, so that the impact rod 575 is always in contact with the cam 573. At the same time, the air-cooling part 578 inside the movable seat 51 will draw the external airflow through the fan therein, and input the airflow into the notch 577 on the outside of the impact rod 575 through the ventilation duct, and finally blow it to the bending area of ​​the metal spring 52 and the workpiece.

[0057] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric heating tube bending device, comprising an operating table (1) and a bending die (2) movably mounted on the upper side of the operating table (1), wherein a fixing seat (3) is fixedly connected to the upper side of the operating table (1), and a screw drive member (4) is provided on the upper side of the operating table (1) and inside the fixing seat (3), wherein: A bending component (5) is provided on the upper side of the operating table (1), and the bending component (5) comprises a movable seat (51) movably overlapped on the upper side of the operating table (1); The front side of the movable seat (51) is fixedly connected to a metal spring (52), and the number of the metal springs (52) is three. The front side of the fixed seat (3) is provided with a limiting groove (54), and a movable sleeve (53) is slidably connected inside the limiting groove (54). The movable sleeve (53) is sleeved on the outside of the screw drive member (4). The inside of the movable sleeve (53) is fixedly connected to a fixed sleeve (531), and the number of the fixed sleeves (531) is three. The outsides of the three fixed sleeves (531) are all sleeved with elastic rings (532). The upper side of the operating table (1) is provided with a buffer component (55), and the upper side of the operating table (1) is also provided with an adjustment component (56); A knocking assembly (57) is provided on the upper side of the operating table (1), the knocking assembly (57) comprising a transmission member (571) arranged on the outer side of the screw drive member (4), the transmission member (571) comprising two transmission wheels and a transmission belt sleeved on the outer sides of the two transmission wheels, one of the transmission wheels being fixedly connected to the outer side of the screw, the interior of the other transmission wheel being fixedly connected to a connecting shaft (572), the outer side of the connecting shaft (572) being sleeved with a plurality of connecting seats, and the plurality of connecting seats being fixedly connected to the upper side of the operating table (1), and the right end of the connecting shaft (572) being fixedly connected to a cam (573); The movable seat (51) is provided with a second movable groove (574) inside, the second movable groove (574) is slidably connected with a striking rod (575) inside, the outer side of the striking rod (575) is sleeved with a third tension spring (576), and the number of the third tension springs (576) is three, the outer side of the striking rod (575) is provided with a notch (577), and the number of the notches (577) is three, the front and rear ends of the three third tension springs (576) are respectively overlapped with one side of the inner back side of the second movable groove (574) and the side of the striking rod (575) close to the third tension spring (576), and the movable seat (51) is provided with an air cooling part (578) inside; The air cooling component (578) is composed of a ventilation duct and a fan, the three notches (577) are connected to the same ventilation duct, and the impact rod (575) is pushed to movably contact the outer sides of the three metal springs (52) respectively; A lubrication assembly (58) is provided on the front side of the movable seat (51), and the lubrication assembly (58) comprises a lubrication box (581) fixedly connected to the front side of the movable seat (51); a storage cavity (582) is provided inside the lubrication box (581), and the number of the storage cavities (582) is three; three inner surfaces of the lubrication box (581) are provided with through holes (583), and the number of the through holes (583) is three; sponge rings (584) are fixedly installed on the three inner surfaces of the lubrication box (581); scraper rings (585) are fixedly connected to the three inner surfaces of the lubrication box (581); the sponge rings (584) and the scraper rings (585) are respectively located on two sides of the through holes (583).

2. The electric heating tube bending device according to claim 1, characterized in that: The screw drive member (4) is composed of a servo motor, a screw, and a screw nut, and the movable sleeve (53) is sleeved on the outside of the screw nut. The buffer assembly (55) comprises a limit bar (551) fixedly connected to the lower side of the movable seat (51), the movable seat (51) is slidably connected to the upper side of the operating table (1) through the limit bar (551), and a movable groove (552) is provided on the upper side of the operating table (1). A movable block (553) is fixedly connected to the lower side of the movable seat (51), and a plurality of rollers are rollingly connected to the lower side of the movable block (553). The movable block (553) is slidably connected in the movable groove (552) through the plurality of rollers. A first tension spring (554) is fixedly connected to the left side of the movable block (553), and the number of the first tension springs (554) is multiple, and the other ends of the multiple first tension springs (554) are all fixedly connected to the left side inside the movable groove (552).

3. The electric heating tube bending device according to claim 2, characterized in that: The adjustment assembly (56) comprises a column (561) fixedly connected to the upper side of the movable sleeve (53); an extrusion block (562) is fixedly connected to the right side of the inner part of the limiting groove (54); a pushing member (563) is slidably connected to the inner part of the limiting groove (54); a first movable groove (564) is provided on the lower side of the inner part of the pushing member (563); a pressure block (565) is slidably connected to the inner part of the first movable groove (564); a first pressure spring (566) is fixedly connected to the upper side of the pressure block (565); a top end of the first pressure spring (566) is fixedly connected to the inner upper side of the first movable groove (564); after the pressure block (565) moves, it is pressed and contacted with the extrusion block (562); after the pressure block (565) moves, it is pressed and contacted with the column (561); a second tension spring (567) is fixedly connected to the left side of the pushing member (563); the other end of the second tension spring (567) is fixedly connected to the left side of the inner part of the limiting groove (54).

4. The electric heating tube bending device according to claim 3, characterized in that: The right side extension rod of the pushing member (563) passes through the right side of the fixed seat (3); the movable seat (51) and one side of the front face of the bending mold (2) are provided with a slide groove (569), and the number of the slide grooves (569) is three. The insides of the three slide grooves (569) are all slidably connected with sliders (5691), and the three sliders (5691) are respectively fixedly connected to the outside of the other ends of the three metal springs (52). The insides of the three sliders (5691) are fixedly connected with the same connecting rod (568). After the pushing member (563) moves to the right, it is squeezed and contacted with the outside of the connecting rod (568), and the connecting rod (568) is slidably connected in the three slide grooves (569), and the three slide grooves (569) are connected.

5. The electric heating tube bending device according to claim 4, characterized in that: A positioning groove (5692) is provided on one side of the inner back side of the three slide grooves (569), a magnetic block (5693) is slidably connected to one side of the back side of the three sliders (5691), and the front sides of the three magnetic blocks (5693) are fixedly connected to a second pressure spring (5694), and the other ends of the three second pressure springs (5694) are respectively fixedly connected to the inner side walls of the three sliders (5691). After being pushed by the second pressure springs (5694), the three magnetic blocks (5693) are respectively inserted into the three positioning grooves (5692), and a magnet sheet (5695) is fixedly connected to the upper side of the operating table (1). After the three magnetic blocks (5693) are rotated, they are magnetically adsorbed to the same magnet sheet (5695).

6. The electric heating tube bending device according to claim 1, characterized in that: A quantitative component (59) is provided inside the lubrication box (581), and the quantitative component (59) includes a movable column (591) slidably connected inside the plurality of through holes (583), a plurality of drainage holes (592) are provided on the outer side of the movable column (591), an oil drain groove (593) is provided inside the movable column (591), and the plurality of drainage holes (592) are connected to the same oil drain groove (593), the lower sides of the plurality of movable columns (591) are inclined, and a third pressure spring (594) is sleeved on the outer side of the movable column (591), the bottom end of the third pressure spring (594) is fixedly connected to the outer side of the movable column (591), and the other end of the third pressure spring (594) is fixedly connected to the inner side of the through hole (583) near the storage chamber (582).

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