Traction type honing machine based on wind power driving

Abstract

The utility model discloses a traction type honing machine based on wind power driving, two wind wheels are fixed at two ends of an oilstone mechanism, the two wind wheels are assembled with the movable ends of pneumatic-electric integrated slip rings, the static ends of the two pneumatic-electric integrated slip rings are respectively connected with two traction ropes, the two traction ropes are both connected with the linear free end of a linear execution mechanism, and the linear execution mechanism is connected with a motor. The linear execution mechanism drags the oilstone mechanism to axially move in a to-be-polished hole of a workpiece through the traction rope, air is blown to the wind wheel through the pneumatic-electric integrated sliding ring, the wind wheel is made to rotate, and then the oilstone mechanism is driven to rotate in the to-be-polished hole. According to the honing mechanism, a main shaft stretching into a workpiece and used for supporting the honing mechanism is omitted, the phenomenon that the main shaft swings downwards and shifts due to the fact that the main shaft is too long is avoided, axial movement of the oilstone is achieved in a traction mode of the traction rope, and the using effect is good. The oilstone is driven to rotate through wind power, the structure is simple, radial displacement of the oilstone is supplied through piezoelectric ceramic deformation, the structural design is ingenious and reasonable, redundancy is avoided, and operation is stable.

Description

Technical Field

[0001] The utility model relates to a traction-type honing machine driven by wind power. Background Art

[0002] Due to the high aspect ratio of the inner hole of the component, the processing of slender holes requires the spindle of the honing machine to be thin and long. Therefore, the spindle will swing slightly due to insufficient rigidity during the processing of slender holes, resulting in the straightness failing to meet the processing requirements. The existing honing oilstone feed motion control mainly includes two modes: electronic hydraulic feed and electronic mechanical feed. When processing slender holes (the slender holes described in the present invention refer to pipes with an aspect ratio greater than 10), both electronic hydraulic feed and electronic mechanical feed will cause deformation in the direction of the variable axis due to the long control stroke and insufficient spindle rigidity, resulting in reduced control accuracy and uneven feed amount, which in turn causes the roundness and roughness errors of the slender hole processing to fail to meet the processing requirements. Summary of the invention

[0003] The utility model provides a wind-driven traction honing machine in order to solve the problems existing in the prior art.

[0004] The technical solutions adopted in this utility model are:

[0005] A traction honing machine driven by wind power comprises a traction rope, a linear actuator, a pneumatic-electric integrated slip ring having a moving end and a static end, and an oilstone mechanism capable of circumferentially rotating in a hole to be polished of a workpiece, two wind wheels are fixed at both ends of the oilstone mechanism, and the two wind wheels are assembled with the moving end of the pneumatic-electric integrated slip ring, the static ends of the two pneumatic-electric integrated slip rings are respectively connected to two traction ropes, and the two traction ropes are both connected to the linear free ends of the linear actuator, the linear actuator pulls the oilstone mechanism to move axially in the hole to be polished of the workpiece through the traction rope, blows air to the wind wheel through the pneumatic-electric integrated slip ring to rotate the wind wheel, and then drives the oilstone mechanism to rotate in the hole to be polished.

[0006] Furthermore, the traction rope includes an outer skin and a rope core, the rope core can move inside the outer skin, the outer skin is fixed, one end of the two traction rope cores are respectively fixed to the linear free end of the linear actuator, and the other ends of the two rope cores are fixed to the static ends of the two pneumatic and electrical integrated slip rings.

[0007] Furthermore, the oilstone mechanism includes an oilstone holder, an oilstone, a radial expansion unit and piezoelectric ceramics. The radial expansion unit is coaxially arranged with the oilstone holder. A plurality of oilstones are evenly inserted into the oilstone holder, and the inner sides of all oilstones elastically abut against the radial expansion unit. The piezoelectric ceramics are fixed in the oilstone holder. When energized, the piezoelectric ceramics deform and cause the radial expansion unit to displace axially, thereby driving the oilstone to displace radially and abut against the inner wall of the hole to be polished. The leads of the piezoelectric ceramics are connected to the pneumatic-electric integrated slip ring.

[0008] Furthermore, the oilstone retainer is evenly distributed with a number of slots in the circumferential direction, the inner side of each oilstone is fixed to an oilstone seat, the oilstone seat is inserted into the slot, two annular springs are arranged in the oilstone retainer, the two annular springs are sleeved on all the oilstone seats, and the oilstone seats are elastically pressed against the radial expansion unit.

[0009] Furthermore, the radial expansion unit includes an expansion shaft and a compression spring. The outer wall surface of the expansion shaft and the inner wall surface of the oilstone seat are both provided with inclined surfaces, and the inclined surfaces of the two cooperate with each other. The compression spring is arranged coaxially with the expansion shaft, and the compression spring and the piezoelectric ceramic are arranged on both sides of the expansion shaft. When the piezoelectric ceramic is energized, it deforms and causes the expansion shaft to displace axially and compresses the compression spring. The inclined surface of the expansion shaft and the inclined surface of the oilstone seat slide relative to each other and cause the oilstone seat to displace radially.

[0010] Furthermore, fixed ends are fixed at both ends of the oilstone retainer, and a guide shaft is provided on the inner end surface of the fixed end cover on one side, the compression spring and the expansion shaft are both sleeved on the guide shaft, and one end of the compression spring abuts against the fixed end cover on the corresponding side, and the other end abuts against the expansion shaft.

[0011] Furthermore, the piezoelectric ceramic is composed of a plurality of rectangular piezoelectric ceramic sheets stacked together, and rectangular holes are provided on the inner wall surface of the other fixed end cover and the end surface of the expansion shaft away from the compression spring, and the two ends of the piezoelectric ceramic are assembled in the two rectangular holes.

[0012] Furthermore, a plurality of rubber balls are evenly distributed on the outer wall surface of the moving end of the gas-electric integrated slip ring.

[0013] The utility model has the following beneficial effects:

[0014] The utility model eliminates the need for a spindle that extends into the workpiece to support the honing mechanism, and the spindle does not shift due to being too long. The axial movement of the oilstone is achieved by traction with a traction rope, and the use effect is good. The oilstone is driven to rotate by wind, and the structure is simple. The radial displacement of the oilstone is "supplied" by the deformation of piezoelectric ceramics. The structural design is ingenious and reasonable, non-redundant, and stable in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a partial structural diagram of the utility model.

[0016] Figure 2 for Figure 1 Structural diagram of the removed artifact.

[0017] Figure 3 for Figure 1 Schematic diagram of the medium traction rope traction oilstone mechanism.

[0018] Figure 4 This is a cross-sectional view of the oil stone mechanism rotating due to wind force.

[0019] Figure 5 This is the structural diagram of the oilstone mechanism.

[0020] Figure 6 This is the assembly drawing between the oilstone seat and the radial expansion unit.

[0021] Figure 7 This is an exploded view of the space between the oilstone seat and the radial expansion unit. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 7 The utility model is a traction honing machine based on wind drive, comprising a traction rope 41, a linear actuator 71, a pneumatic-electric integrated slip ring 32 with a moving end and a static end, and an oilstone mechanism that can rotate circumferentially in a hole to be polished of a workpiece 400, two wind wheels 81 are fixed at both ends of the oilstone mechanism, and the two wind wheels 81 are assembled with the moving end of the pneumatic-electric integrated slip ring 32, the static ends of the two pneumatic-electric integrated slip rings 32 are respectively connected to two traction ropes 41, and the two traction ropes 41 are both connected to the linear free ends of the linear actuator 71, the linear actuator 71 pulls the oilstone mechanism to move axially in the hole to be polished of the workpiece through the traction rope 41, blows air to the wind wheel 81 through the pneumatic-electric integrated slip ring 32 to rotate the wind wheel 81, and then drives the oilstone mechanism to rotate in the hole to be polished.

[0024] The utility model can process tubular workpieces or workpieces of other shapes (as long as they do not interfere with the movement of the traction rope 41 and the linear actuator 71).

[0025] The oilstone mechanism in the utility model is different from the existing spindle-type oilstone mechanism. Since the oilstone mechanism in the utility model is pulled by a traction rope, the spindle is omitted. For this purpose, a new oilstone feeding structure is provided, which is "supplied" by the deformation of piezoelectric ceramics. There is no need to set up a complex mechanical transmission structure or a complex oil circuit structure. The details are as follows.

[0026] The oilstone mechanism includes an oilstone holder 51, an oilstone 52, a radial expansion unit 61 and a piezoelectric ceramic 62. The radial expansion unit 61 is arranged on the inner side of the oilstone holder 51 and is coaxially arranged with the oilstone holder 51. A plurality of oilstones 52 are evenly inserted into the oilstone holder 51, and the inner sides of all the oilstones 52 are in contact with the radial expansion unit 61. The piezoelectric ceramic 62 is fixed in the oilstone holder 51. The oilstone holder 51 drives the piezoelectric ceramic 62 and the radial expansion unit 61 to rotate together. The piezoelectric ceramic 62 is deformed when energized and causes the radial expansion unit 61 to displace axially. During the axial displacement of the radial expansion unit 61, the oilstone 52 is driven to displace radially.

[0027] When the oilstone holder 51 rotates, the oilstone 52 needs to move radially and contact the inner wall of the workpiece to achieve grinding. The radial movement of the oilstone 52 is achieved by mechanical linkage, and the force source of its axial movement is achieved by converting electrical energy into mechanical energy through piezoelectric ceramics 62. The specific structure and action principle are as follows:

[0028] A plurality of slots 510 are evenly distributed in the circumferential direction of the oilstone holder 51. The slots 510 are arranged along the axial direction of the oilstone holder 51. An oilstone seat 521 is inserted into the slot 510. An oilstone 52 is fixed to the top of each oilstone seat 521. Two annular springs 513 are arranged in the oilstone holder 51. The two annular springs 513 are sleeved on all the oilstone seats 521 and elastically press the oilstone seats 521 against the radial expansion unit 61.

[0029] The radial expansion unit 61 includes an expansion shaft 611 and a compression spring 612. The expansion shaft 611 is provided with a conical step portion, and the bottom surface of the oilstone seat 521 is provided with an inclined surface adapted to the conical surface of the conical step portion, and the inclined surfaces of the two are in contact with each other. The compression spring 612 is coaxially arranged with the expansion shaft 611, and the compression spring 612 and the piezoelectric ceramic 62 are arranged on both sides of the expansion shaft 611. When the piezoelectric ceramic 62 is energized, it deforms in the axial direction and causes the expansion shaft 611 to axially displace and compress the compression spring 612. When the expansion shaft 611 is displaced, the inclined surface of the expansion shaft 611 slides relative to the inclined surface of the oilstone seat 521 and causes the oilstone seat 521 to radially displace. When a reverse current is passed through the piezoelectric ceramic 62, the mechanical deformation of the piezoelectric ceramic 62 is restored, and the compression spring 612 and the annular spring 513 are reset together, and finally the oilstone seat 521 is reset.

[0030] In order to achieve better installation of the radial expansion unit 61 and the piezoelectric ceramic 62 and ensure a more reasonable structural layout, fixed end caps 511 are fixed at both ends of the oilstone retainer 51, and a guide shaft 514 is provided on the inner end surface of the left fixed end cap 511. The compression spring 612 and the expansion shaft 611 are both sleeved on the guide shaft 514, and one end of the compression spring 612 abuts against the fixed end cap 511 on the left, and the other end abuts against the step surface of the conical step portion of the expansion shaft 611. When the piezoelectric ceramic 62 undergoes mechanical deformation, the guide shaft 514 guides the axial displacement of the expansion shaft 611.

[0031] The piezoelectric ceramic 62 in the present invention is composed of a plurality of piezoelectric ceramic sheets stacked together. The piezoelectric ceramic 62 converts mechanical energy and electrical energy into each other (piezoelectric effect). When in use, it is required to "extend" in a certain direction. It only needs to be assembled in the corresponding appropriate direction. The principle of the piezoelectric ceramic 62 is not elaborated in detail in the present invention.

[0032] Since the radial expansion unit 61 needs to rotate synchronously with the oilstone holder 51 during use, the present invention uses the piezoelectric ceramic 62 as a "connecting bridge" between the radial expansion unit 61 and the oilstone holder 51, and its structure is: a plurality of rectangular piezoelectric ceramic sheets are stacked to form the piezoelectric ceramic 62, and rectangular holes 6110 are provided on the inner wall surface of the right fixed end cover 511 and the right end surface of the expansion shaft 611, and the two ends of the piezoelectric ceramic 62 are assembled in the two rectangular holes 6110. Through the connection of the piezoelectric ceramic 62, the radial expansion unit 61 and the oilstone holder 51 form a whole.

[0033] During rotation, in order to avoid winding, the present invention connects the lead wire of the piezoelectric ceramic 62 to the gas-electric integrated slip ring 32. The gas-electric integrated slip ring 32 can simultaneously connect the power line and the air pipe to avoid winding during rotation. The gas-electric integrated slip ring is an existing mature structure, so the present invention does not elaborate on the structure and principle of the gas-electric integrated slip ring.

[0034] In order to realize the wind wheel 81, the wind wheel 81 is connected to the oilstone retainer 51 to form a whole, and an assembly shaft 5111 is fixed in the axial direction of the outer end surface of the fixed end cover 511, and the wind wheel 81 and the assembly shaft are connected through a key and a keyway.

[0035] Since the traction rope 41 is to pull the gas-electric integrated slip ring 32 to axially displace, a plurality of rubber balls 321 are evenly distributed on the outer wall surface of the moving end of the gas-electric integrated slip ring 32. When the oilstone 52 is not in contact with the inner wall of the workpiece 400, when the rotor 31 is axially displaced, the movement is guided by the rubber balls 321. When the oilstone 52 is extended and in contact with the inner wall of the workpiece 400, the axial displacement of the rotor 31 is guided by the oilstone 52.

[0036] When used for pipe fittings, the utility model provides a frame 11, on which are provided two fixed seats 111 arranged at intervals, and the fixed seats 111 are provided with support holes, and both ends of the workpiece 400 are supported in the support holes, and a plurality of studs are threadedly connected on the fixed seats 111, and the ends of the studs extend into the support holes and lock the workpiece 400, thereby finally achieving the goal of fixing the workpiece 400 in mid-air on the frame 11.

[0037] The linear actuator 71 in this embodiment adopts a screw mechanism, and mounting plates 213 are installed on both sides of the linear free end of the linear actuator 71.

[0038] The two traction ropes 41 are arranged in an S shape, and the traction ropes 41 include an outer skin 411 and a rope core 412. The rope core 412 can move inside the outer skin 411. The outer skin 411 is passed through the mounting plate 213, and the outer skin 411 is fixed to the frame 11. One end of the two traction rope cores 412 is respectively fixed to the two mounting plates 213. When the lead screw mechanism drives the linear free end to move left and right, the linear free end pulls the gas-electric integrated slip ring 32 on the corresponding side through the traction rope 41 to achieve synchronous movement of the oilstone mechanism.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A wind-driven traction honing machine, characterized in that: The invention comprises a traction rope (41), a linear actuator (71), a pneumatic-electric integrated slip ring (32) having a moving end and a static end, and an oilstone mechanism capable of circumferentially rotating in a hole to be polished of a workpiece (400), two wind wheels (81) being fixed at both ends of the oilstone mechanism, and the two wind wheels (81) being assembled with the moving end of the pneumatic-electric integrated slip ring (32), the static ends of the two pneumatic-electric integrated slip rings (32) being respectively connected to two traction ropes (41), the two traction ropes (41) being connected to the linear free ends of the linear actuator (71), the linear actuator (71) tractions the oilstone mechanism to move axially in the hole to be polished of the workpiece through the traction rope (41), blows air to the wind wheel (81) through the pneumatic-electric integrated slip ring (32) to rotate the wind wheel (81), and then drives the oilstone mechanism to rotate in the hole to be polished.

2. The wind-driven traction honing machine according to claim 1, characterized in that: The traction rope (41) comprises an outer skin and a rope core, the rope core is movable within the outer skin, the outer skin is fixed, one end of the two traction rope cores is respectively fixed to the linear free end of the linear actuator, and the other ends of the two rope cores are fixed to the static ends of the two gas-electric integrated slip rings (32).

3. The wind-driven traction honing machine according to claim 1, characterized in that: The oilstone mechanism comprises an oilstone retainer (51), an oilstone (52), a radial expansion unit (61) and a piezoelectric ceramic (62); the radial expansion unit (61) is coaxially arranged with the oilstone retainer (51); a plurality of oilstones (52) are evenly inserted into the oilstone retainer (51); the inner sides of all the oilstones (52) elastically abut against the radial expansion unit (61); the piezoelectric ceramic (62) is fixed in the oilstone retainer (51); the piezoelectric ceramic (62) is energized to deform and cause the radial expansion unit (61) to axially displace, thereby driving the oilstone (52) to radially displace and abut against the inner wall of the hole to be polished; the lead of the piezoelectric ceramic (62) is connected to the gas-electric integrated slip ring (32).

4. The wind-driven traction honing machine according to claim 3, characterized in that: The oilstone retainer (51) is evenly distributed with a plurality of slots (510) in the circumferential direction. The inner side of each oilstone (52) is fixed to an oilstone seat (521). The oilstone seat (521) is inserted into the slot (510). Two annular springs (513) are arranged in the oilstone retainer (51). The two annular springs (513) are sleeved on all the oilstone seats (521) and elastically press the oilstone seats (521) against the radial expansion unit (61).

5. The wind-driven traction honing machine according to claim 4, characterized in that: The radial expansion unit (61) comprises an expansion shaft (611) and a compression spring (612); an outer wall surface of the expansion shaft (611) and an inner wall surface of the oil stone seat (521) are both provided with inclined surfaces, and the inclined surfaces of the two cooperate with each other; the compression spring (612) and the expansion shaft (611) are coaxially arranged, and the compression spring (612) and the piezoelectric ceramic (62) are arranged on both sides of the expansion shaft (611); the piezoelectric ceramic (62) is energized to deform and cause the expansion shaft (611) to axially displace and compress the compression spring (612); the inclined surface of the expansion shaft (611) and the inclined surface of the oil stone seat (521) slide relative to each other and cause the oil stone seat (521) to radially displace.

6. The wind-driven traction honing machine according to claim 5, characterized in that: Fixed end covers (511) are fixed at both ends of the oilstone retainer (51), and a guide shaft (514) is provided on the inner end surface of one of the fixed end covers (511). The compression spring (612) and the expansion shaft (611) are both sleeved on the guide shaft (514), and one end of the compression spring (612) abuts against the fixed end cover (511) on the corresponding side, and the other end abuts against the expansion shaft (611).

7. The wind-driven traction honing machine according to claim 6, characterized in that: The piezoelectric ceramic (62) is formed by stacking a plurality of rectangular piezoelectric ceramic sheets. Rectangular holes (6110) are provided on the inner wall surface of the fixed end cover (511) on the other side and on the end surface of the expansion shaft (611) away from the compression spring. The two ends of the piezoelectric ceramic (62) are assembled in the two rectangular holes (6110).

8. The wind-driven traction honing machine according to claim 1, characterized in that: A plurality of rubber balls (321) are evenly distributed on the outer wall surface of the moving end of the gas-electric integrated slip ring (32).

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