Reliable bent pipe polishing machine with single power source

Abstract

The utility model provides a single-power-source reliable bent pipe polishing machine which comprises a feeding guide pipe fixedly connected to a support. The polishing device further comprises a driving motor fixed to the support, a shaft of the driving motor is fixedly connected with a power transmission shaft, and the power transmission shaft is connected with the first driving wheel through a clutch. The clutch is used for cutting off or connecting power transmission between the power transmission shaft and the first driving wheel, the power transmission shaft is further fixedly sleeved with a second driving wheel, the first driving wheel is in transmission connection with the polishing auxiliary driving wheel, the second driving wheel is in transmission connection with the polishing main driving wheel, and the polishing device further comprises a pressing device used for pressing or loosening the polishing auxiliary driving wheel. Relative movement and synchronous movement of the polishing main driving wheel and the polishing auxiliary driving wheel can be achieved only through one power source, cost is lower, safety and reliability are achieved, and the risk of galloping and machine collision caused by out-of-step of double motors is fundamentally eradicated.

Description

Technical Field

[0001] The utility model relates to the field of polishing equipment, in particular to a single power source reliable type elbow polishing machine. Background Art

[0002] At present, the working environment of workers in the elbow polishing industry is poor and they are highly dependent on manual labor, especially for elbow polishing. In recent years, there have been emerging double-motor linkage clamping polishing machines. However, due to the extremely high requirements for double-servo following response at high speeds and the need for linkage in the mechanism, the dynamic balance effect at high speeds cannot be achieved, resulting in disadvantages such as a relatively short average time between servo failures, a high equipment error rate, and poor reliability.

[0003] Therefore, there is an urgent need in the market for an elbow polishing machine with high reliability and capable of adjusting the polishing pipe diameter. Summary of the Utility Model

[0004] The utility model provides a single power source reliable type elbow polishing machine, which solves the defects of high failure rate and poor reliability of the existing double-motor linkage clamping polishing machine.

[0005] The technical solution of the utility model is realized as follows:

[0006] Single-power-source reliable pipe bender and polisher, including a feed conduit fixedly connected to a bracket; a polishing slave drive wheel and a polishing main drive wheel are rotatably sleeved on the outside of the feed conduit at intervals in the feed direction. It also includes a drive motor fixed on the bracket, the shaft of the drive motor is fixedly connected with a power transmission shaft, the power transmission shaft is connected to the first drive wheel through a clutch, and the clutch is used to cut off or engage the power transmission between the power transmission shaft and the first drive wheel. A second drive wheel is also fixedly sleeved outside the power transmission shaft. The first drive wheel is drivingly connected to the polishing slave drive wheel, and the second drive wheel is drivingly connected to the polishing main drive wheel. It also includes a pressing device for pressing or loosening the polishing slave drive wheel; a plurality of axial planetary gear shafts are rotatably connected to the polishing main drive wheel evenly. A planetary gear is fixedly connected to the end of the planetary gear shaft away from the polishing slave drive wheel. A plurality of arc-shaped chutes corresponding to the planetary gear shafts are evenly opened on the polishing main drive wheel. The center line of each arc-shaped chute coincides with the center line of a corresponding adjacent planetary gear shaft. The arc-shaped chute extends outward from the middle of the polishing main drive wheel. A slider is slidably arranged in the arc-shaped chute. A polishing wheel shaft parallel to the planetary gear shaft is rotatably connected to the slider. A polishing wheel is fixedly connected to the end of the polishing wheel shaft away from the polishing slave drive wheel. The planetary gear shaft and the polishing wheel shaft are drivingly connected at the end close to the polishing slave drive wheel. An internal gear ring is also fixed on the bracket, and the center line of the internal gear ring coincides with the center line of the feed conduit. The planetary gear meshes with the internal gear ring; the slider is fixedly connected with an adjustment guide rod parallel to the polishing wheel shaft. An adjustment chute cooperating with the adjustment guide rod is opened on the polishing slave drive wheel. The adjustment chute extends outward from the middle of the polishing slave drive wheel. The other end of the adjustment guide rod is located in the adjustment chute.

[0007] Further, the feed conduit is a trumpet-shaped pipe with an inlet larger than the outlet; the bracket includes two parallel vertical plates and a bottom plate, and the two vertical plates are fixedly arranged on the bottom plate at intervals; the feed conduit is fixed on one vertical plate, and a feed port corresponding to the feed conduit is opened on this vertical plate; the internal gear ring is fixed on the other vertical plate, and an internal gear ring hole corresponding to the internal gear ring is opened on this vertical plate, or the internal gear ring is directly opened on the other vertical plate.

[0008] Further, the drive motor is a servo motor or a stepper motor; the polishing slave drive wheel, the polishing main drive wheel, the first drive wheel, and the second drive wheel are all synchronous belt wheels. The polishing slave drive wheel and the first drive wheel are connected by a first synchronous belt, and the polishing main drive wheel and the second drive wheel are connected by a second synchronous belt; corresponding second synchronous belt wheels are fixed on the planetary gear shaft and the polishing wheel shaft, and the second synchronous belt wheels are connected by a third synchronous belt.

[0009] Further, the pressing device includes a cylinder, and a pressing block is fixed to the end of the telescopic rod of the cylinder. The cylinder is used to push the pressing block to press or release the polishing driven wheel.

[0010] Further, there is a fixed initial position bump on the polishing driven wheel, and a sensor for sensing the initial position bump is fixed on the bracket.

[0011] Further, a connecting rod is fixedly connected to the slider, and a collar is fixedly connected to the other end of the connecting rod. The collar is rotatably sleeved outside the planetary gear rotating shaft.

[0012] Further, there are three of the planetary gear rotating shaft, the arc-shaped chute, the slider, the polishing wheel rotating shaft, and the adjusting chute.

[0013] Further, the adjusting chute is an involute-shaped chute, a constant-speed linear chute, or a cycloidal chute.

[0014] Further, a bearing I is connected to one end of the adjusting guide rod located in the adjusting chute.

[0015] Further, an end plate is fixed to the end face of the polishing main driving wheel away from the polishing driven wheel.

[0016] Advantages of the present utility model: The driving motor of the present utility model can drive the polishing main driving wheel to rotate, and can be selectively cut off or engaged with the polishing driven wheel through a clutch. Only one power source is used to realize the relative movement and synchronous movement of the polishing main driving wheel and the polishing driven wheel, with lower cost, higher safety and reliability, and fundamentally eliminating the risk of the double motors getting out of step and causing a flying car to hit the machine. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is the front view of the present utility model;

[0019] Figure 2 It is the explosion view of the present utility model;

[0020] Figure 3 It is the front view of the present utility model;

[0021] Figure 4 It is the sectional view of the present utility model;

[0022] Figure 5 is a perspective view of the polishing slave drive wheel, the polishing main drive wheel and the connected components;

[0023] Figure 6 is Figure 5 a perspective view from another angle;

[0024] Figure 7 is the front view of the polishing slave drive wheel;

[0025] Figure 8 is the front view of the polishing main drive wheel;

[0026] Figure 9 is a perspective view of the connection between the polishing wheel and the planetary gear;

[0027] Figure 10 is Figure 9 a perspective view from another angle;

[0028] Figure 11 is the front view of the connection between the slider, the connecting rod and the collar;

[0029] Figure 12 is Figure 11 the perspective view of.

[0030] The reference numerals in the figure are: 11 - feed conduit, 12 - internal gear ring, 13 - inductor, 2 - bracket, 21 - vertical plate, 22 - bottom plate, 3 - polishing slave drive wheel, 31 - adjustment chute, 4 - polishing main drive wheel, 41 - arc chute, 43 - end plate, 44 - avoidance groove, 51 - planetary gear shaft, 52 - planetary gear, 53 - second synchronous pulley, 54 - third synchronous belt, 61 - slider, 62 - polishing wheel shaft, 63 - polishing wheel, 64 - adjustment guide rod, 65 - connecting rod, 66 - collar, 68 - bearing I, 69 - side bump, 8 - drive motor, 81 - power transmission shaft, 82 - first drive wheel, 83 - second drive wheel, 84 - clutch, 85 - first synchronous belt, 86 - second synchronous belt, 91 - cylinder, 92 - pressing block. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Refer to Figure 1-12, a single power source reliable type elbow polishing machine, including a feeding conduit 11, the feeding conduit 11 is fixedly connected to a bracket 2; a polishing slave driving wheel 3 and a polishing main driving wheel 4 are sequentially and rotatably sleeved outside the feeding conduit 11 at intervals in the feeding direction, and further includes a driving motor 8 fixedly connected to the bracket 2, a power transmission shaft 81 is fixedly connected to the shaft of the driving motor 8, the power transmission shaft 81 is connected to a first driving wheel 82 through a clutch 84, the clutch 84 is used for cutting off or engaging the power transmission between the power transmission shaft 81 and the first driving wheel 82, a second driving wheel 83 is also fixedly sleeved outside the power transmission shaft 81, the first driving wheel 82 is in transmission connection with the polishing slave driving wheel 3, the second driving wheel 83 is in transmission connection with the polishing main driving wheel 4, and further includes a pressing device for pressing or loosening the polishing slave driving wheel 3; a plurality of axial planetary gear shafts 51 are rotatably connected to the polishing main driving wheel 3 evenly, a planetary gear 52 is fixedly connected to one end of the planetary gear shaft 51 away from the polishing slave driving wheel 3, a plurality of arc-shaped chutes 41 corresponding to the planetary gear shafts 51 respectively are evenly formed on the polishing main driving wheel 4, the center line of each arc-shaped chute 41 coincides with the center line of a corresponding adjacent planetary gear shaft 51, the arc-shaped chutes 41 extend outward from the middle of the polishing main driving wheel 4, a slider 61 is slidably arranged in the arc-shaped chute 41, a polishing wheel shaft 62 parallel to the planetary gear shaft 51 is rotatably connected to the slider 61, a polishing wheel 63 is fixedly connected to one end of the polishing wheel shaft 62 away from the polishing slave driving wheel 3, the planetary gear shaft 51 and the polishing wheel shaft 62 are in transmission connection at one end close to the polishing slave driving wheel 3, an internal gear ring 12 is also fixedly connected to the bracket 2, the center line of the internal gear ring 12 coincides with the center line of the feeding conduit 11, and the planetary gear 52 meshes with the internal gear ring 12; the slider 61 is fixedly connected with an adjusting guide rod 64 parallel to the polishing wheel shaft, an adjusting chute 31 matched with the adjusting guide rod 64 is formed on the polishing slave driving wheel 3, the adjusting chute 31 extends outward from the middle of the polishing slave driving wheel 3, and the other end of the adjusting guide rod 64 is located in the adjusting chute 31.

[0033] Wherein, the polishing slave driving wheel 3 and the polishing main driving wheel 4 are rotatably connected to the outside of the feeding conduit 11 through bearings; the planetary gear shaft 51 is rotatably connected to the polishing main driving wheel 4 through a bearing; the polishing wheel shaft 62 is rotatably connected to the slider 61 through a bearing. The above several places all adopt bearing connections, which can reduce the friction during rotation and improve the service life. The slider 61 can be a circular slider or a sector slider. The clutch 84 can be an electromagnetic clutch.

[0034] As a further embodiment, the feed conduit 11 is a horn-shaped tube with an inlet larger than the outlet; the bracket 2 includes two parallel vertical plates 21 and a bottom plate 22. The bottom plate 22 can be square, circular or other shapes. The two vertical plates 21 are fixedly spaced on the bottom plate 22. The vertical plates 21 can be directly welded to the bottom plate 22 or fixed to the bottom plate 22 by screws; the feed conduit 11 is fixed to one of the vertical plates 21, and a feed port corresponding to the feed conduit is provided on this vertical plate 21; the internal gear ring 12 is directly provided on the other vertical plate 21, integrally formed, saving the assembly process and time, with high efficiency. The internal gear ring 12 can also be a split type, fixed to the other vertical plate 21 by screws, and an internal gear ring hole corresponding to the internal gear ring 12 is provided on this vertical plate 21.

[0035] As a further embodiment, the driving motor 8 is a servo motor or a stepper motor. The polishing slave driving wheel 3, the polishing main driving wheel 4, the first driving wheel 82, and the second driving wheel 83 are all synchronous belt wheels. The polishing slave driving wheel 3 and the first driving wheel 82 are connected by a first synchronous belt 85, and the polishing main driving wheel 4 and the second driving wheel 83 are connected by a second synchronous belt 86; corresponding second synchronous belt wheels 53 are fixed on the planetary gear rotating shaft 51 and the polishing wheel rotating shaft 62, and the second synchronous belt wheels are connected by a third synchronous belt 54.

[0036] As a further embodiment, the pressing device includes a cylinder 91. A pressing block 92 is fixed to the end of the telescopic rod of the cylinder 91. The cylinder 91 is used to push the pressing block 92 to press or release the polishing slave driving wheel 3, and the pressing block 92 can be a rubber block.

[0037] As a further embodiment, there is a fixed initial position convex block on the polishing slave driving wheel 3, and an inductor 13 for sensing the initial position convex block is fixed on the bracket 2. The inductor 13 can be a proximity inductor; when the initial position convex block is a metal block, the inductor 13 can also be a metal inductor; other inductors can also be used according to needs as long as the purpose of sensing the initial position convex block can be achieved.

[0038] As a further embodiment, a connecting rod 65 is fixedly connected to the slider 61. The other end of the connecting rod 65 is fixedly connected to a collar 66. The collar 66 is rotatably sleeved outside the planetary gear rotating shaft 51. A bearing can be provided between the collar 66 and the planetary gear rotating shaft 51 to reduce the friction during rotation and improve the service life. The connection between the slider 61 and the planetary gear rotating shaft 51 through the connecting rod 65 can ensure the stability of the slider and prevent the slider from falling off.

[0039] As a further embodiment, there are three of the planetary gear rotating shafts 51, the arc-shaped sliding grooves 41, the sliders 61, the polishing wheel rotating shafts 62, and the adjusting sliding grooves 31. Of course, according to needs, there can also be four, five, six or other numbers, but not less than two.

[0040] As a further embodiment, the adjusting sliding groove 31 is an involute-shaped sliding groove, an isochronous linear sliding groove or a cycloidal sliding groove.

[0041] As a further embodiment, a bearing I68 is connected to one end of the adjusting guide rod 64 located in the adjusting sliding groove 31, which can reduce friction and improve service life. The combination of the adjusting guide rod 64 and the bearing I68 can be replaced by a cam follower. A side convex block 69 for fixedly connecting with the adjusting guide rod 64 is fixedly connected to the slider 61, the adjusting guide rod 64 is fixedly connected to the side convex block 69, and an avoidance groove 44 corresponding to the side convex block 69 is formed in the arc-shaped sliding groove 41.

[0042] As a further embodiment, an end plate 43 is fixed to the end surface of the polishing main driving wheel 4 away from the polishing driven driving wheel 3 to block substances such as dust generated during the polishing of the polishing wheel 63.

[0043] Principle of the present utility model:

[0044] Adjustment before use: When polishing, the air cylinder 91 pushes the pressing block 92 to press the polishing driven driving wheel 3 to keep the polishing driven driving wheel 3 stationary. The driving motor 8 drives the power transmission shaft to rotate 81. At this time, the clutch 84 is disengaged, the first driving wheel 82 does not rotate, and the power transmission shaft 81 only drives the second driving wheel 83 to rotate. The second driving wheel 83 drives the polishing main driving wheel 4 to rotate through the second synchronous belt 86. The slider 61 slides along the arc-shaped sliding groove 41 (meanwhile, the sliding of the slider 61 will drive the adjusting guide rod 64 to slide along the adjusting sliding groove 31), so as to drive the three polishing wheels 63 to approach or move away from each other to adapt to elbows with different pipe diameters, realizing adjustment. It can also be adjusted when the polishing wheels are worn. As long as the effective polishing part of the polishing wheel 63 has not been used up, it can continue to be used, saving costs and reducing the replacement frequency.

[0045] When polishing is in progress, the cylinder 91 drives the clamping block 92 to release the polishing slave drive wheel 3, and the driving motor 8 drives the power transmission shaft 81 to rotate. At this time, the clutch 84 is engaged, and the power transmission shaft 81 can simultaneously drive the first drive wheel 82 and the second drive wheel 83 to rotate. The first drive wheel 82 and the second drive wheel 83 drive the polishing slave drive wheel 3 and the polishing main drive wheel 4 to rotate synchronously. When the polishing main drive wheel 4 rotates, it drives the planetary gear 52 to revolve along the inner gear ring. At the same time, the planetary gear 52 also rotates. The rotation of the planetary gear 52 drives the planetary gear shaft 51 to rotate. The planetary gear shaft 51 then drives the polishing wheel shaft 62 to rotate. The polishing wheel shaft 62 drives the polishing wheel 63 to rotate. The polishing main drive wheel 4 also drives the polishing wheel 63 to revolve. The processed curved pipe can be polished 360 degrees without dead angles to ensure a good polishing effect.

[0046] The driving motor of the utility model can drive the polishing main driving wheel to rotate, and can selectively cut off or engage with the polishing slave driving wheel through a clutch. Only one power source is used to realize the relative movement and synchronous movement of the polishing main driving wheel and the polishing slave driving wheel, which is lower in cost, safer and more reliable, and fundamentally eliminates the risk of a flying car crashing due to a loss of step between the dual motors.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Single power source reliable pipe bending polishing machine, characterized by: It includes a feed conduit, which is fixedly connected to the bracket; The feed conduit is provided with a polishing slave drive wheel and a polishing main drive wheel which are rotated in sequence on the outside in the feed direction, and also includes a drive motor fixed on the bracket, the shaft of the drive motor is fixedly connected with a power transmission shaft, the power transmission shaft is connected with the first drive wheel through a clutch, the clutch is used to cut off or connect the power transmission between the power transmission shaft and the first drive wheel, and a second drive wheel is fixedly provided on the outside of the power transmission shaft, the first drive wheel is transmission-connected with the polishing slave drive wheel, the second drive wheel is transmission-connected with the polishing main drive wheel, and also includes a clamping device for clamping or loosening the polishing slave drive wheel; The polishing main driving wheel is evenly connected to a plurality of axial planetary gear shafts for rotation, and a planetary gear is fixedly connected to one end of the planetary gear shaft away from the polishing slave driving wheel. The polishing main driving wheel is also evenly provided with a plurality of arc-shaped slide grooves corresponding to the planetary gear shafts, and the center line of each arc-shaped slide groove coincides with the center line of a corresponding adjacent planetary gear shaft. The arc-shaped slide groove extends outward from the middle of the polishing main driving wheel, and a slider is slidably arranged in the arc-shaped slide groove. A polishing wheel shaft parallel to the planetary gear shaft is rotatably connected to the slider. A polishing wheel is fixedly connected to one end of the polishing wheel shaft away from the polishing slave driving wheel, and the planetary gear shaft and the polishing wheel shaft are transmission-connected to one end of the polishing slave driving wheel. An inner gear ring is also fixed on the bracket, and the center line of the inner gear ring coincides with the center line of the feed conduit, and the planetary gear meshes with the inner gear ring. The slider is fixedly connected with an adjusting guide rod parallel to the rotating shaft of the polishing wheel. An adjusting slot cooperating with the adjusting guide rod is opened on the polishing drive wheel. The adjusting slot extends outward from the middle of the polishing drive wheel, and the other end of the adjusting guide rod is located in the adjusting slot.

2. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: The feed conduit is a trumpet tube with an inlet larger than an outlet; the bracket includes two parallel vertical plates and a bottom plate, and the two vertical plates are fixed on the bottom plate at intervals; the feed conduit is fixed on a vertical plate, and a feed port corresponding to the feed conduit is provided on the vertical plate; the inner gear ring is fixed on another vertical plate, and an inner gear ring hole corresponding to the inner gear ring is provided on the vertical plate, or the inner gear ring is directly opened on another vertical plate.

3. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: The driving motor is a servo motor or a stepping motor; the polishing slave driving wheel, the polishing main driving wheel, the first driving wheel and the second driving wheel are all synchronous pulleys, the polishing slave driving wheel and the first driving wheel are connected by a first synchronous belt, and the polishing main driving wheel and the second driving wheel are connected by a second synchronous belt; corresponding second synchronous pulleys are fixed on the planetary gear shaft and the polishing wheel shaft, and the second synchronous pulleys are connected by a third synchronous belt.

4. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: The clamping device comprises a cylinder, a clamping block is fixed at the end of the telescopic rod of the cylinder, and the cylinder is used to push the clamping block to press or release the polishing slave driving wheel.

5. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: The polishing slave driving wheel is provided with a fixed initial position protrusion, and the bracket is provided with a sensor for sensing the initial position protrusion.

6. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: The sliding block is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with a sleeve ring, which is rotatably sleeved outside the rotating shaft of the planetary gear.

7. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: There are three planetary gear shafts, three arc-shaped slide grooves, three sliders, three polishing wheel shafts and three adjusting slide grooves.

8. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: The regulating chute is an involute chute, a constant velocity chute or a cycloid chute.

9. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: A bearing I is connected to one end of the adjusting guide rod located in the adjusting slide groove.

10. The single-power-source reliable pipe bending polishing machine according to claim 1, characterized in that: An end plate is fixed on the end surface of the polishing main driving wheel away from the polishing driving wheel.

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