CN112815895A - Wheel set size measuring device and wheel set size on-machine measuring method in rotary repair operation - Google Patents
Wheel set size measuring device and wheel set size on-machine measuring method in rotary repair operation Download PDFInfo
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- CN112815895A CN112815895A CN202011537795.1A CN202011537795A CN112815895A CN 112815895 A CN112815895 A CN 112815895A CN 202011537795 A CN202011537795 A CN 202011537795A CN 112815895 A CN112815895 A CN 112815895A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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Abstract
The invention relates to the technical field of wheel pair rotary repair, in particular to a wheel pair size measuring device and an on-machine wheel pair size measuring method in rotary repair operation, wherein the wheel pair size measuring device comprises a wheel lathe, a left measuring device, a left protection box, a right measuring device and a right protection box; the latter mounts the wheelset to the wheelset fixture. The invention has reasonable and compact structure and ingenious conception, and the left tool rest and the right tool rest are controlled to move, so that the lathe body collects the position coordinates of the left tool rest and the right tool rest at each position through the left measuring device and the right measuring device, thereby completing the measurement of the diameter of the wheel, the thickness of the wheel rim and the width of the wheel rim; through setting up left side protection box and right side protection box, the piece that produces when avoiding wheel lathe to carry out the rotary repair operation damages left measuring device and right measuring device, has accurate, quick and efficient characteristics.
Description
Technical Field
The invention relates to the technical field of wheel pair rotary repair, in particular to a wheel pair size measuring device and an on-machine wheel pair size measuring method in rotary repair operation.
Background
The long-term operation of the train can lead to the wheel set wearing and tearing, the unusual condition of wheel set size appears. Wheel set dimensions include geometric dimensions and tread defects, wherein an overrun in geometric dimensions affects wheel-rail fit, possibly causing derailment; the tread defects can cause vibration and impact, great damage is caused to line fixing facilities and vehicle structures, and the maintenance cost is increased; crack defects can also cause wheel set cracking and significant train accidents. The wheel set parameters are timely and accurately measured, damage is found and maintained, the accident rate can be effectively reduced, and the train utilization rate is improved.
In order to prevent the damage from influencing the safe operation of the train, the wheel set needs to be repaired in a rotating mode after being used for a certain time. The wheel set is required to be dismounted from a bogie for wheel drop rotary repair, the wheel set is clamped on a wheel lathe, the wheel diameter, the wheel rim thickness and other dimensions are turned to be within a safety limit, and finally the wheel set is loaded again for use. Before rotary repair, the geometrical dimension and tread defects need to be measured, but at present, manual measurement is relied on, so that the defects of large measurement error, low efficiency and the like exist, the dimension of a train wheel set cannot be accurately and quickly obtained, and great potential safety hazards exist.
Disclosure of Invention
The invention provides a wheel pair size measuring device and an on-machine wheel pair size measuring method in rotary repairing operation, overcomes the defects of the prior art, and can effectively solve the problem that the existing train wheel drop rotary repairing needs manual measurement to obtain the wheel pair size.
One of the technical schemes of the invention is realized by the following measures: a wheel pair size measuring device comprises a wheel lathe, a left measuring device, a left protection box, a right measuring device and a right protection box, wherein the wheel lathe comprises a lathe body, a left tool rest, a right tool rest and a wheel pair clamp; the left knife rest upside is equipped with left protection box, is equipped with the left measuring device who lies in the left knife rest rear after can stretching out backward in the left protection box, and the right knife rest upside is equipped with right protection box, is equipped with the right measuring device who lies in the right knife rest rear after can stretching out backward in the right protection box, and left measuring device and right measuring device all are connected with lathe body.
The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:
above-mentioned left measuring device can trigger formula gauge head and left straight line actuating mechanism including a left side, and right measuring device triggers formula gauge head and right straight line actuating mechanism including the right side, and the formula gauge head is triggered on a left side and the formula gauge head is triggered on the right side all with this body coupling of lathe.
The left protection box can comprise a box body, a cover body and a cover opening mechanism, wherein the box body is fixedly installed on the upper side of the left knife rest, a working cavity which is communicated from front to back is arranged in the middle of the box body, the cover body is arranged on the rear side of the box body and comprises a protection top plate and a protection side plate, the upper end of the protection side plate is fixedly installed with the rear end of the protection top plate, the front end of the protection top plate is hinged with the upper end of the rear side of the box body, a left linear executing mechanism with the rear end capable of extending backwards is fixedly installed in the working cavity, a left trigger type measuring head which is positioned below the protection top plate is fixedly installed at the rear end of the left linear executing mechanism, and; the right protection box is fixedly installed on the upper side of the right tool rest, the right protection box and the left protection box are identical in structure and are distributed in a bilateral symmetry mode, a right linear execution mechanism is fixedly installed in the right protection box, the rear end of the right linear execution mechanism can stretch out backwards, and a right trigger type measuring head is fixedly installed at the rear end of the right linear execution mechanism.
The cover opening mechanism can comprise a left cover opening device and a right cover opening device, the left cover opening device comprises a support frame, a middle shaft, rolling wheels, a connecting rod and a track rod, the support frame with the upper end positioned above the left linear actuator is fixedly arranged on the left side of the rear end of the left linear actuator, an installation cavity which is through from front to back and is provided with an upward opening is arranged at the upper end of the support frame, the middle shaft with the axis arranged in the left-right direction is fixedly arranged in the installation cavity, the rolling wheels with the upper end positioned above the support frame are sleeved outside the middle part of the middle shaft, the track rod which is inclined in a front-high and rear-low shape is arranged on the upper side of the rear part of the rolling wheels, the connecting rod is fixedly arranged on the front side; the right cover opening device and the left cover opening device are identical in structure and are distributed in bilateral symmetry.
The outer side of the middle part of the rolling wheel can be provided with an outer ring groove, and the front part of the upper end of the track rod is positioned in the outer ring groove.
The cover opening mechanism can further comprise a fixing ring, the left linear actuating mechanism is a first electric cylinder, a first hook shell capable of extending backwards is arranged in the first electric cylinder, the outer side of the left end of the first hook shell is fixedly provided with the fixing ring, the left side of the fixing ring is fixedly provided with a left cover opening device, and the right side of the fixing ring is fixedly provided with a right cover opening device; the right linear actuating mechanism is a second electric cylinder, and a second hook fastener which can extend backwards is arranged in the second electric cylinder.
The left protection box can also comprise a hinge, and the front end of the protection top plate is hinged with the upper end of the rear side of the box body through the hinge.
The second technical scheme of the invention is realized by the following measures: an on-machine measuring method for the wheel set dimension in rotary repair work by using the wheel set dimension measuring device comprises the following steps:
mounting a wheel set on a wheel set clamp;
the lathe body controls the left tool rest to move, the lathe body obtains position coordinates of the left tool rest at each position according to the sensing signals of the left trigger type measuring head, size measurement of a left wheel in a wheel pair is completed, the lathe body controls the right tool rest to move, the lathe body obtains position coordinates of the right tool rest at each position according to the sensing signals of the right trigger type measuring head, size measurement of a right wheel in the wheel pair is completed, and the size measurement comprises wheel diameter, wheel flange thickness and wheel rim width;
dimension measurement of the left wheel, comprising the steps of:
A. the left tool rest moves to the right of the left wheel, the rear end of the left linear executing mechanism extends backwards to enable the left trigger type measuring head to be located behind the left tool rest, the left tool rest moves backwards to enable the left trigger type measuring head to be located on the right of the left wheel, the left tool rest moves leftwards until the left trigger type measuring head is in contact with the right of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, and the lathe body obtains a first position coordinate of the current position of the left tool rest;
B. the left tool rest moves rightwards by a first safety distance to enable the left trigger type measuring head to be located on the right side of the left wheel, the left tool rest moves forwards to enable the left trigger type measuring head to be located on the right front side of the left wheel, the left tool rest moves leftwards by a first stroke distance to enable the left trigger type measuring head to be located on the front side of the left wheel, the left tool rest moves backwards until the left trigger type measuring head is in contact with the front side of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a second position coordinate of the current position of the left tool rest, and wheel diameter measurement of the left wheel is completed through;
C. the left tool rest moves forwards by a second stroke distance, the left tool rest moves rightwards until the left trigger type measuring head is contacted with the left side of the wheel rim of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a third position coordinate of the current position of the left tool rest, and the wheel rim thickness measurement of the left wheel is completed through the first position coordinate and the third position coordinate;
D. the left tool rest moves forwards and leftwards until the left trigger type measuring head is positioned in front of the left side of the left wheel, the left tool rest moves backwards to enable the left trigger type measuring head to be positioned on the left side of the left wheel, the left tool rest moves rightwards until the left trigger type measuring head is contacted with the left side of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a fourth position coordinate of the current position of the left tool rest, and rim width measurement of the left wheel is completed through the first position coordinate and the fourth position coordinate;
E. the left tool rest moves leftwards and forwards until the left trigger type measuring head is positioned in front of the left wheel, and the rear end of the left linear actuating mechanism retracts forwards to enable the left trigger type measuring head to be positioned in front of the left tool rest;
dimension measurement of the right wheel, comprising the steps of:
a. the right tool rest moves leftwards to the left front of the right wheel, the rear end of the right linear execution mechanism extends backwards to enable the right trigger type measuring head to be located behind the right tool rest, the right tool rest moves backwards to enable the right trigger type measuring head to be located on the left of the right wheel, the right tool rest moves rightwards until the right trigger type measuring head is contacted with the left side of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, and the lathe body obtains a fifth position coordinate of the current position of the right tool rest;
b. the right tool rest moves leftwards by a second safety distance to enable the right trigger type measuring head to be located on the left side of the right wheel, the right tool rest moves forwards to enable the right trigger type measuring head to be located on the left front side of the left wheel, the right tool rest moves rightwards by a third travel distance to enable the right trigger type measuring head to be located on the front side of the right wheel, the right tool rest moves backwards until the right trigger type measuring head is in contact with the front side of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a sixth position coordinate of the current position of the right tool rest, and wheel diameter measurement of the right wheel is completed through the;
c. the right tool rest moves forwards by a fourth stroke distance, the right tool rest moves leftwards until the right trigger type measuring head is contacted with the right side of the rim of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a seventh position coordinate of the current position of the right tool rest, and the rim thickness measurement of the right wheel is completed through the fifth position coordinate and the seventh position coordinate;
d. the right tool rest moves forwards and backwards until the right trigger type measuring head is positioned at the right front of the right wheel, the right tool rest moves backwards to enable the right trigger type measuring head to be positioned at the right side of the right wheel, the right tool rest moves leftwards until the right trigger type measuring head is contacted with the right side of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains an eighth position coordinate of the current position of the right tool rest, and rim width measurement of the right wheel is completed through the fifth position coordinate and the eighth position coordinate;
e. the right knife rest moves rightwards and moves forwards until the right trigger type measuring head is positioned at the right front of the right wheel, and the rear end of the right linear actuating mechanism retracts forwards to enable the right trigger type measuring head to be positioned at the front of the right knife rest.
The invention has reasonable and compact structure and ingenious conception, and the left tool rest and the right tool rest are controlled to move, so that the lathe body collects the position coordinates of the left tool rest and the right tool rest at each position through the left measuring device and the right measuring device, thereby completing the measurement of the diameter of the wheel, the thickness of the wheel rim and the width of the wheel rim; through setting up left side protection box and right side protection box, the piece that produces when avoiding wheel lathe to carry out the rotary repair operation damages left measuring device and right measuring device, has accurate, quick and efficient characteristics.
Drawings
Fig. 1 is a schematic top view of the preferred embodiment of the present invention.
Fig. 2 is a left enlarged structural diagram of the left protection box in fig. 1.
Fig. 3 is a schematic perspective view of fig. 2 in a use state.
The codes in the figures are respectively: 1 is lathe body, 2 is left knife rest, 3 is right knife rest, 4 is wheel pair anchor clamps, 5 triggers formula gauge head for a left side, 6 is first electric jar, 7 is first colluding the shellfish, 8 triggers formula gauge head for the right side, 9 is the box body, 10 is the working chamber, 11 is the protection roof, 12 is the protection curb plate, 13 is the support frame, 14 is the axis, 15 is the wheel that rolls, 16 is the connecting rod, 17 is the trace pole, 18 is the right device of uncapping, 19 is the hinge, 20 is right protection box, 21 is left wheel, 22 is right wheel.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described with reference to the following examples and figures:
as shown in the attached drawings 1, 2 and 3, the wheel set size measuring device comprises a wheel lathe, a left measuring device, a left protection box, a right measuring device and a right protection box 20, the wheel lathe comprises a lathe body 1, a left tool rest 2, a right tool rest 3 and a wheel set clamp 4, the left tool rest 2 and the right tool rest 3 are arranged on the upper side of the front part of the lathe body 1 at intervals from left to right, and the wheel set clamp 4 is arranged on the upper side of the rear part of the lathe body 1; the upper side of the left tool rest 2 is provided with a left protection box, a left measuring device which can extend backwards and is located at the rear of the left tool rest 2 is arranged in the left protection box, a right protection box 20 is arranged on the upper side of the right tool rest 3, a right measuring device which can extend backwards and is located at the rear of the right tool rest 3 is arranged in the right protection box 20, and the left measuring device and the right measuring device are both connected with the lathe body 1. In the using process, the left tool rest 2 and the right tool rest 3 are controlled to move through the lathe body 1, so that the lathe body 1 collects the position coordinates of the left tool rest 2 and the right tool rest 3 at each position through the left measuring device and the right measuring device, and the measurement of the diameter of the wheel, the thickness of the wheel rim and the width of the wheel rim is completed; through setting up left side protection box and right side protection box 20, avoid the piece that produces when wheel lathe carries out the rotary repair operation, damage left measuring device and right measuring device. The wheel lathe is known in the art and may be of the type C8011B, as required.
The wheel set size measuring device can be further optimized or/and improved according to actual needs:
as shown in fig. 1, 2 and 3, the left measuring device comprises a left trigger measuring head 5 and a left linear actuator, the right measuring device comprises a right trigger measuring head 8 and a right linear actuator, and the left trigger measuring head 5 and the right trigger measuring head 8 are both connected with the lathe body 1. In the using process, the left trigger type measuring head 5 and the right trigger type measuring head 8 extend out to complete the measuring process when measuring by virtue of the left linear executing mechanism and the right linear executing mechanism, and retract after the measuring is completed, so that the measuring head is prevented from touching a workpiece in the turning process, and turning chips are prevented from damaging the left trigger type measuring head 5 and the right trigger type measuring head 8; by arranging the left linear actuator, the left trigger type measuring head 5 can conveniently extend out of the left protection box when the size of the wheel needs to be measured, and the left trigger type measuring head 5 can be retracted into the left protection box when the rotary repair operation is needed; through setting up straight line actuating mechanism on the right side, make the right side trigger formula gauge head 8 and stretch out from right protection box 20 when needing to measure the wheel size of being convenient for, make the right side trigger formula gauge head 8 withdraw in right protection box 20 when needing to repair the operation soon. According to the requirement, the left trigger type measuring head 5 and the right trigger type measuring head 8 are both the prior known technology, and the type of the left trigger type measuring head and the right trigger type measuring head can be a Torres P80 machine tool measuring head; in addition, the left linear actuator and the right linear actuator are all known in the prior art, and can be an electric push rod, a hydraulic cylinder, an air cylinder, an electric cylinder and the like.
As shown in fig. 1, 2 and 3, the left protection box comprises a box body 9, a cover body and a cover opening mechanism, the box body 9 is fixedly installed on the upper side of the left knife rest 2, a working cavity 10 which is through from front to back is arranged in the middle of the box body 9, the cover body is arranged at the rear side of the box body 9 and comprises a protection top plate 11 and a protection side plate 12, the upper end of the protection side plate 12 is fixedly installed with the rear end of the protection top plate 11, the front end of the protection top plate 11 is hinged with the upper end of the rear side of the box body 9, a left linear actuator with the rear end capable of extending backwards is fixedly installed in the working cavity 10, a left trigger type measuring head 5 positioned below the protection top plate 11 is fixedly installed at the rear end of the left linear actuator, and the cover opening; the right protection box 20 of 3 upside fixed mounting of right knife rest, right protection box 20 is the same with left protection box structure and is bilateral symmetry and distributes, and right protection box 20 internal fixation has the right straight line actuating mechanism that the rear end can stretch out backward, and right straight line actuating mechanism rear end fixed mounting has right trigger formula gauge head 8. In the using process, the cover opening mechanism is arranged, so that when the left linear executing mechanism extends the left trigger type measuring head 5 out of the left protection box, the cover body is opened, and the measurement of the wheel set size by the left trigger type measuring head 5 is not influenced; when the left linear executing mechanism retracts the left trigger type measuring head 5 into the left protection box, the cover body is closed to prevent the left trigger type measuring head 5 from being damaged by debris generated in the rotary repair operation; the right protection box 20 is the same as the left protection box in principle and effect, and the right trigger type measuring head 8 is protected. The protection top plate 11 and the protection side plate 12 may be integrally provided as required.
As shown in fig. 1, 2 and 3, the cover opening mechanism comprises a left cover opening device and a right cover opening device 18, the left cover opening device comprises a support frame 13, a center shaft 14, rolling wheels 15, a connecting rod 16 and a track rod 17, the left side of the rear end of the left linear actuator is fixedly provided with the support frame 13 with the upper end positioned above the support frame, the upper end of the support frame 13 is provided with a front-back through installation cavity with an upward opening, the center shaft 14 with the axis arranged in the left-right direction is fixedly installed in the installation cavity, the rolling wheels 15 with the upper end positioned above the support frame 13 are sleeved outside the middle part of the center shaft 14, the track rod 17 inclined in a front-high-back low shape is arranged on the upper side of the rear part of the rolling wheels 15, the front side of the lower end of the protective side plate 12 is fixedly provided with the connecting rod 16; the right cap opening device 18 and the left cap opening device are identical in structure and are distributed in bilateral symmetry. This arrangement facilitates opening or closing of the lid during use. The connecting rod 16 and the trajectory rod 17 may be integrally provided as required.
As shown in fig. 1, 2 and 3, the outer side of the middle part of the rolling wheel 15 is provided with an outer ring groove, and the front part of the upper end of the track rod 17 is positioned in the outer ring groove. In the use, through such setting, stability when reinforcing lid is opened or is closed for when left straight line actuating mechanism rear end stretches out, roll better jack-up lid of wheel 15.
As shown in fig. 1, 2 and 3, the uncovering mechanism further comprises a fixing ring, the left linear actuator is a first electric cylinder 6, a first hook shell 7 capable of extending backwards is arranged in the first electric cylinder 6, the outer side of the left end of the first hook shell 7 is fixedly provided with the fixing ring, the left side of the fixing ring is fixedly provided with a left uncovering device, and the right side of the fixing ring is fixedly provided with a right uncovering device 18; the right linear actuating mechanism is a second electric cylinder, and a second hook fastener which can extend backwards is arranged in the second electric cylinder. In the use process, the left cover opening device and the right cover opening device 18 are convenient to be installed together with the left linear actuator and the right linear actuator through the arrangement; through setting up first electric jar 6 and second electric jar, not only be convenient for control, can also strengthen the accuracy nature of measuring size. The first electric cylinder 6 and the second electric cylinder are known in the art and may be ac servo electric cylinders available from SMC manufacturers, model number levh 32S3B-200Ml-S5a 21.
As shown in fig. 1, 2 and 3, the left protection box further comprises a hinge 19, and the front end of the protection top plate 11 is hinged with the upper end of the rear side of the box body 9 through the hinge 19. This arrangement facilitates opening or closing of the lid during use.
As shown in fig. 1, 2 and 3, the wheel set dimension on-machine measuring method in the rotary repair work using the wheel set dimension measuring device comprises the following steps:
s1: mounting the wheel set on a wheel set clamp 4;
the wheel set is arranged on the wheel set clamp 4, and the axis of the wheel set does not change in position in the dimension measurement process, so the wheel diameters of the left wheel 21 and the right wheel 22 can be respectively calculated according to the axis position coordinate of the wheel set and the second position coordinate and the sixth position coordinate in the subsequent step S2;
s2: the lathe body 1 controls the left tool rest 2 to move, the lathe body 1 obtains position coordinates of the left tool rest 2 at each position according to a sensing signal of the receiving left trigger type measuring head 5, size measurement of a left wheel 21 in a wheel pair is completed, the lathe body 1 controls the right tool rest 3 to move, the lathe body 1 obtains position coordinates of the right tool rest 3 at each position according to a sensing signal of the receiving right trigger type measuring head 8, size measurement of a right wheel 22 in the wheel pair is completed, and the size measurement comprises wheel diameter, wheel flange thickness and wheel rim width;
(1) dimension measurement of the left wheel 21, comprising the steps of:
A. the left tool rest 2 moves to the right of the left wheel 21, the rear end of the left linear actuator extends backwards to enable the left trigger type measuring head 5 to be located behind the left tool rest 2, the left tool rest 2 moves backwards to enable the left trigger type measuring head 5 to be located on the right of the left wheel 21, the left tool rest 2 moves leftwards until the left trigger type measuring head 5 is in contact with the right of the left wheel 21, the left trigger type measuring head 5 sends a sensing signal to the lathe body 1, and the lathe body 1 obtains a first position coordinate of the current position of the left tool rest 2;
B. the left tool rest 2 moves towards the right by a first safety distance to enable the left trigger type measuring head 5 to be located on the right side of the left wheel 21, the left tool rest 2 moves forwards to enable the left trigger type measuring head 5 to be located on the right front side of the left wheel, the left tool rest 2 moves towards the left by a first stroke distance to enable the left trigger type measuring head 5 to be located on the front side of the left wheel 21, the left tool rest 2 moves backwards until the left trigger type measuring head 5 is in contact with the front side of the left wheel 21, the left trigger type measuring head 5 sends a sensing signal to the lathe body 1, the lathe body 1 obtains a second position coordinate of the current position of the left tool rest 2, and wheel diameter measurement of the left wheel 21 is completed through the;
C. the left tool rest 2 moves forwards by a second stroke distance, the left tool rest 2 moves rightwards until the left trigger measuring head 5 contacts with the left side of the wheel rim of the left wheel 21, the left trigger measuring head 5 sends a sensing signal to the lathe body 1, the lathe body 1 obtains a third position coordinate of the current position of the left tool rest 2, and the wheel rim thickness measurement of the left wheel 21 is completed through the first position coordinate and the third position coordinate;
D. the left tool rest 2 moves forwards and leftwards until the left trigger measuring head 5 is positioned in front of the left wheel 21, the left tool rest 2 moves backwards to enable the left trigger measuring head 5 to be positioned on the left side of the left wheel 21, the left tool rest 2 moves rightwards until the left trigger measuring head 5 is contacted with the left side of the left wheel 21, the left trigger measuring head 5 sends a sensing signal to the lathe body 1, the lathe body 1 obtains a fourth position coordinate of the current position of the left tool rest 2, and rim width measurement of the left wheel 21 is completed through the first position coordinate and the fourth position coordinate;
E. the left tool rest 2 moves leftwards and forwards until the left trigger measuring head 5 is positioned in front of the left wheel 21, and the rear end of the left linear actuating mechanism retracts forwards to enable the left trigger measuring head 5 to be positioned in front of the left tool rest 2;
(2) dimensional measurement of the right wheel 22, comprising the steps of:
a. the right tool rest 3 moves leftwards to the left front of the right wheel 22, the rear end of the right linear actuator extends backwards to enable the right trigger type measuring head 8 to be located behind the right tool rest 3, the right tool rest 3 moves backwards to enable the right trigger type measuring head 8 to be located on the left of the right wheel 22, the right tool rest 3 moves rightwards until the right trigger type measuring head 8 is in contact with the left side of the right wheel 22, the right trigger type measuring head 8 sends a sensing signal to the lathe body 1, and the lathe body 1 obtains a fifth position coordinate of the current position of the right tool rest 3;
b. the right tool rest 3 moves leftwards by a second safety distance to enable the right trigger type measuring head 8 to be located on the left side of the right wheel 22, the right tool rest 3 moves forwards to enable the right trigger type measuring head 8 to be located on the left front side of the left wheel, the right tool rest 3 moves rightwards by a third travel distance to enable the right trigger type measuring head 8 to be located on the front side of the right wheel 22, the right tool rest 3 moves backwards until the right trigger type measuring head 8 is in contact with the front side of the right wheel 22, the right trigger type measuring head 8 sends a sensing signal to the lathe body 1, the lathe body 1 obtains a sixth position coordinate of the current position of the right tool rest 3, and wheel diameter measurement of the right wheel 22 is completed through the fifth position;
c. the right tool rest 3 moves forwards by a fourth stroke distance, the right tool rest 3 moves leftwards until the right trigger type measuring head 8 contacts with the right side of the rim of the right wheel 22, the right trigger type measuring head 8 sends a sensing signal to the lathe body 1, the lathe body 1 obtains a seventh position coordinate of the current position of the right tool rest 3, and the rim thickness measurement of the right wheel 22 is completed through the fifth position coordinate and the seventh position coordinate;
d. the right tool rest 3 moves forwards and backwards until the right trigger type measuring head 8 is positioned at the right front of the right wheel 22, the right tool rest 3 moves backwards to enable the right trigger type measuring head 8 to be positioned at the right side of the right wheel 22, the right tool rest 3 moves leftwards until the right trigger type measuring head 8 is contacted with the right side of the right wheel 22, the right trigger type measuring head 8 sends a sensing signal to the lathe body 1, the lathe body 1 obtains an eighth position coordinate of the current position of the right tool rest 3, and rim width measurement of the right wheel 22 is completed through the fifth position coordinate and the eighth position coordinate;
e. the right tool rest 3 moves rightwards and moves forwards until the right trigger type measuring head 8 is positioned at the right front of the right wheel 22, and the rear end of the right linear actuator retracts forwards to enable the right trigger type measuring head 8 to be positioned at the front of the right tool rest 3.
For example, according to the above steps A to E, the first stroke distance is set to M1The first safety distance is m1，M1-m1The value is 70mm, and the second stroke distance is set to M2，M2The specific value may be 12mm, the coordinate axis of the left tool post 2 moving left and right may be the X axis, the coordinate axis of the left tool post 2 moving back and forth may be the Y axis, and the first position coordinate may be (X axis)1，Y1) The second position coordinate may be set to (X)2，Y2) The third position coordinate may be set to (X)3，Y3) The fourth position coordinate may be set to (X)4，Y4) The specific coordinate system is based on the internal programming of the wheel lathe, and the embodiment only explains the principle of relevant measurement and calculation by taking the example of a plurality of position coordinates;
in step A, a first position coordinate (X) obtained by moving the left tool post 21，Y1) As reference coordinates, and thereby determining the reference of the left wheel 21;
in step B, the second position coordinate (X) obtained by moving the left tool post 22，Y2) Wherein X is2=X170, when the distance between Y2 and the wheel set axis is the wheel radius of the left wheel 21, so that the wheel diameter of the left wheel 21 can be calculated;
in step C, the third position coordinate (X) obtained by moving the left tool post 23，Y3) Wherein Y is3=Y2-M2At this time, X1-X3The value of (d) is the rim thickness of the left wheel 21;
in step DFourth position coordinate (X) obtained by moving the left tool post 24，Y4) At this time, X1-X4The value of (d) is the rim width of the left wheel 21;
in addition, the steps a to E are the same as the specific calculation process of the steps a to E, and therefore are not described again, in this embodiment, when performing the dimension measurement, the steps a to E may be performed first, the steps a to E may also be performed first, and the left tool rest 2 and the right tool rest 3 may also work synchronously, and the steps a and a, B and B, C and C, and D are performed simultaneously when performing the steps a to E.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (9)
1. A wheel pair size measuring device is characterized by comprising a wheel lathe, a left measuring device, a left protection box, a right measuring device and a right protection box, wherein the wheel lathe comprises a lathe body, a left tool rest, a right tool rest and a wheel pair clamp; the left knife rest upside is equipped with left protection box, is equipped with the left measuring device who lies in the left knife rest rear after can stretching out backward in the left protection box, and the right knife rest upside is equipped with right protection box, is equipped with the right measuring device who lies in the right knife rest rear after can stretching out backward in the right protection box, and left measuring device and right measuring device all are connected with lathe body.
2. The wheel set dimension measuring device of claim 1, wherein the left measuring device includes a left trigger probe and a left linear actuator, and the right measuring device includes a right trigger probe and a right linear actuator, both the left trigger probe and the right trigger probe being connected to the lathe body.
3. The wheel set size measuring device according to claim 2, characterized in that the left protection box comprises a box body, a cover body and a cover opening mechanism, the box body is fixedly installed on the upper side of the left tool rest, a working cavity which is through from front to back is arranged in the middle of the box body, the cover body is arranged on the rear side of the box body and comprises a protection top plate and a protection side plate, the upper end of the protection side plate is fixedly installed with the rear end of the protection top plate, the front end of the protection top plate is hinged with the upper end of the rear side of the box body, a left linear actuator with the rear end capable of extending backwards is fixedly installed in the working cavity, a left trigger type measuring head located below the protection top plate is fixedly installed on the rear end of the left linear actuator, and the cover opening mechanism; the right protection box is fixedly installed on the upper side of the right tool rest, the right protection box and the left protection box are identical in structure and are distributed in a bilateral symmetry mode, a right linear execution mechanism is fixedly installed in the right protection box, the rear end of the right linear execution mechanism can stretch out backwards, and a right trigger type measuring head is fixedly installed at the rear end of the right linear execution mechanism.
4. The wheel pair size measuring device according to claim 3, wherein the cover opening mechanism comprises a left cover opening device and a right cover opening device, the left cover opening device comprises a support frame, a middle shaft, rolling wheels, a connecting rod and a track rod, the left side of the rear end of the left linear actuator is fixedly provided with the support frame, the upper end of the support frame is positioned above the support frame, the upper end of the support frame is provided with an installation cavity which is through from front to back and provided with an upward opening, the middle shaft is fixedly provided with a left-right axial axis, the upper end of the middle part of the middle shaft is sleeved with the rolling wheels, the upper side of the rear part of the rolling wheels is provided with the track rod which is inclined in a front-high and rear-low manner, the front side of the lower end of the protective side plate is fixedly provided with the connecting rod; the right cover opening device and the left cover opening device are identical in structure and are distributed in bilateral symmetry.
5. The wheel-pair dimension measuring device as defined in claim 4, wherein the rolling wheel is provided with an outer annular groove on an outer side of a middle portion thereof, and a front portion of an upper end of the track bar is located in the outer annular groove.
6. The wheel pair size measuring device according to claim 4 or 5, wherein the cover opening mechanism further comprises a fixing ring, the left linear actuator is a first electric cylinder, a first hook shell capable of extending backwards is arranged in the first electric cylinder, the fixing ring is fixedly mounted on the outer side of the left end of the first hook shell, the left cover opening device is fixedly mounted on the left side of the fixing ring, and the right cover opening device is fixedly mounted on the right side of the fixing ring; the right linear actuating mechanism is a second electric cylinder, and a second hook fastener which can extend backwards is arranged in the second electric cylinder.
7. The wheel set dimension measuring device of claim 3, 4 or 5, wherein the left protection box further comprises a hinge, and the front end of the protection top plate is hinged with the upper end of the rear side of the box body through the hinge.
8. The wheel set dimension measuring device of claim 6, wherein the left protective box further comprises a hinge, and the front end of the protective top plate is hinged with the upper end of the rear side of the box body through the hinge.
9. An on-machine measuring method for wheel pair size in rotary repair work of the wheel pair size measuring device according to any one of claims 2 to 8, characterized by comprising:
mounting a wheel set on a wheel set clamp;
the lathe body controls the left tool rest to move, the lathe body obtains position coordinates of the left tool rest at each position according to the sensing signals of the left trigger type measuring head, size measurement of a left wheel in a wheel pair is completed, the lathe body controls the right tool rest to move, the lathe body obtains position coordinates of the right tool rest at each position according to the sensing signals of the right trigger type measuring head, size measurement of a right wheel in the wheel pair is completed, and the size measurement comprises wheel diameter, wheel flange thickness and wheel rim width;
dimension measurement of the left wheel, comprising the steps of:
A. the left tool rest moves to the right of the left wheel, the rear end of the left linear executing mechanism extends backwards to enable the left trigger type measuring head to be located behind the left tool rest, the left tool rest moves backwards to enable the left trigger type measuring head to be located on the right of the left wheel, the left tool rest moves leftwards until the left trigger type measuring head is in contact with the right of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, and the lathe body obtains a first position coordinate of the current position of the left tool rest;
B. the left tool rest moves rightwards by a first safety distance to enable the left trigger type measuring head to be located on the right side of the left wheel, the left tool rest moves forwards to enable the left trigger type measuring head to be located on the right front side of the left wheel, the left tool rest moves leftwards by a first stroke distance to enable the left trigger type measuring head to be located on the front side of the left wheel, the left tool rest moves backwards until the left trigger type measuring head is in contact with the front side of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a second position coordinate of the current position of the left tool rest, and wheel diameter measurement of the left wheel is completed through;
C. the left tool rest moves forwards by a second stroke distance, the left tool rest moves rightwards until the left trigger type measuring head is contacted with the left side of the wheel rim of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a third position coordinate of the current position of the left tool rest, and the wheel rim thickness measurement of the left wheel is completed through the first position coordinate and the third position coordinate;
D. the left tool rest moves forwards and leftwards until the left trigger type measuring head is positioned in front of the left side of the left wheel, the left tool rest moves backwards to enable the left trigger type measuring head to be positioned on the left side of the left wheel, the left tool rest moves rightwards until the left trigger type measuring head is contacted with the left side of the left wheel, the left trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a fourth position coordinate of the current position of the left tool rest, and rim width measurement of the left wheel is completed through the first position coordinate and the fourth position coordinate;
E. the left tool rest moves leftwards and forwards until the left trigger type measuring head is positioned in front of the left wheel, and the rear end of the left linear actuating mechanism retracts forwards to enable the left trigger type measuring head to be positioned in front of the left tool rest;
dimension measurement of the right wheel, comprising the steps of:
a. the right tool rest moves leftwards to the left front of the right wheel, the rear end of the right linear execution mechanism extends backwards to enable the right trigger type measuring head to be located behind the right tool rest, the right tool rest moves backwards to enable the right trigger type measuring head to be located on the left of the right wheel, the right tool rest moves rightwards until the right trigger type measuring head is contacted with the left side of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, and the lathe body obtains a fifth position coordinate of the current position of the right tool rest;
b. the right tool rest moves leftwards by a second safety distance to enable the right trigger type measuring head to be located on the left side of the right wheel, the right tool rest moves forwards to enable the right trigger type measuring head to be located on the left front side of the left wheel, the right tool rest moves rightwards by a third travel distance to enable the right trigger type measuring head to be located on the front side of the right wheel, the right tool rest moves backwards until the right trigger type measuring head is in contact with the front side of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a sixth position coordinate of the current position of the right tool rest, and wheel diameter measurement of the right wheel is completed through the;
c. the right tool rest moves forwards by a fourth stroke distance, the right tool rest moves leftwards until the right trigger type measuring head is contacted with the right side of the rim of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains a seventh position coordinate of the current position of the right tool rest, and the rim thickness measurement of the right wheel is completed through the fifth position coordinate and the seventh position coordinate;
d. the right tool rest moves forwards and backwards until the right trigger type measuring head is positioned at the right front of the right wheel, the right tool rest moves backwards to enable the right trigger type measuring head to be positioned at the right side of the right wheel, the right tool rest moves leftwards until the right trigger type measuring head is contacted with the right side of the right wheel, the right trigger type measuring head sends a sensing signal to the lathe body, the lathe body obtains an eighth position coordinate of the current position of the right tool rest, and rim width measurement of the right wheel is completed through the fifth position coordinate and the eighth position coordinate;
e. the right knife rest moves rightwards and moves forwards until the right trigger type measuring head is positioned at the right front of the right wheel, and the rear end of the right linear actuating mechanism retracts forwards to enable the right trigger type measuring head to be positioned at the front of the right knife rest.
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| CN202011537795.1A CN112815895A (en) | 2020-12-23 | 2020-12-23 | Wheel set size measuring device and wheel set size on-machine measuring method in rotary repair operation |
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