JPH0516116U - Phase difference measuring device after intermediate processing of inner diameter screw - Google Patents

Abstract

(57) [Summary] [Purpose] The phase difference after intermediate processing of the inner diameter screw is measured with a phase difference measuring device, and the work is divided into layers according to the phase difference, and the groups are arranged in the order of good finishing procedure. Finish processing in batch. This will improve the efficiency of finishing. A filler attached to the tip of a rod that can be inserted into the inner diameter of a workpiece and abuttingly engaged with an inner diameter screw; and a measuring device that abuts and engages with the rod to measure the amount of axial movement of the rod. The moving mechanism section that moves the rod in the radial direction of the inner diameter screw and a reference member that determines the reference position of the inner diameter screw of the workpiece are used to measure the phase difference of the inner diameter screw of the workpiece. [Effect] The work efficiency is improved and the productivity is improved by arranging the phase difference measurement data of the inner diameter screw of the work, grouping the layers, and finishing the work in the order of good procedure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention measures the phase difference of the inner diameter screw of a workpiece that has undergone intermediate processing, classifies the work into layers by the phase difference, and uses the inner diameter that is used to process the next process for each group of the same layer. The present invention relates to a phase difference measuring device after intermediate processing of a screw.

[0002]

[Prior Art]

 In the machining of the inner diameter screw of the work, in the intermediate machining process that leaves a finishing allowance, the machining dimensions vary depending on the machine used. Conventionally, finishing work was carried out regardless of this variation, and the work after intermediate processing was set in the machine, and the groove was aligned with the work and the grindstone each time it was classified according to the phase difference, and the finishing work was performed. .. For this reason, the processing time was different due to variations in the finishing allowance, and it took a lot of time. In addition, sometimes a negative phase difference resulted in a defective product, and the groove alignment work was wasted.

[0003]

[Problems to be solved by the device]

 In the intermediate process of the inner diameter screw, variations in processing dimensions, that is, finishing allowance and screw phase difference become problems. As described above, even if the finishing allowance in the direction perpendicular to the axis is left in the intermediate step, the phase of the screw in the axial direction may be shifted, and the actual finishing allowance may become zero or minus size, resulting in a defective product. For this reason, it may be useless even if the finishing process is set up over a long period of time, and the man-hours required for groove alignment may be wasted. Further, the phase alignment work of the screws is not easy and takes a lot of time, which leads to a big problem in terms of man-hour loss.

For this reason, after the intermediate step, the phase difference of the inner diameter screw of the work is measured in advance, the work is classified into phases and the work is set for each layer group, and the processing machine is set, and finishing processing is performed. Efficient finishing can be done without wasting time like this. The present invention measures the phase difference of the inner diameter screw of the work after the intermediate process, and the setup is easy, the works can be grouped into layers, and efficient finishing of the inner diameter screw can be performed. It is an object of the present invention to provide a phase difference measuring device after intermediate processing of a possible inner diameter screw.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention measures the phase difference of an inner diameter screw of a work after intermediate processing and inserts it into the inner diameter of the work in a phase difference measuring device for stratifying the work for each phase difference. A filler that is fixed to the end of the rod that is capable of abuttingly engaging with the inner diameter screw, a measuring machine that abuts and engages with the rod and measures the amount of axial movement of the rod, and the rod is the workpiece. Which constitutes the phase difference measuring device after the intermediate machining of the inner diameter screw, which is provided with the moving mechanism part that moves in the radial direction and the reference member that is arranged on the fixed side of the device to position the workpiece at the reference position. Is.

[0006]

[Action]

 Push the work against the reference part and insert the rod holding the filler into the work. The moving mechanism is operated to bring the filler into contact with the groove of the internally processed inner diameter screw. The deviation of the inner diameter screw from the phase reference value, that is, the phase difference, causes movement of the rod in the axial direction, and the amount of movement is measured by a measuring machine. By determining the range of phase difference for each measured value, that is, the phase difference, and classifying them into layers and grouping them, and finishing processing collectively for each group, setup adjustment at the time of processing becomes easy and efficiency is improved. Good finishing can be done.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a side view of the phase difference measuring device, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a front view of FIG. As shown in FIG. 1, in this embodiment, a steering nut is used as a work. The phase difference measuring device 1 includes a rod 3 for fixing and holding the filler 2, a measuring device (dial gauge) 4 for measuring the axial movement of the rod 3 and being fixed to a holder 18 so as to be adjustable, and a rod 3 for radial direction. It is composed of a moving mechanism portion 5 for moving in a direction, a reference member 6 for determining a reference position of the work, and the like. Hereinafter, each component will be described in detail.

As shown in FIG. 1, the filler 2 is spherical and has a holder 8 forming a flange portion. The holder 8 is inserted and fixed in a hole 9 formed at the tip of the rod 3. As described above, the tip end portion of the rod 3 is formed with the tip end flat portion 10 that receives the flange portion of the holder 8 of the filler 2. A substantially middle portion of the rod 3 is supported by a holding block 12 via a bush 11, and a flange portion 13 is formed at a rear end portion thereof, and the flange portion 13 is a bolt 15 that is screwed into a mounting screw hole 14 of a measuring plate 16. It is fixed to the measuring plate 16 by. A hole into which the guide 36 is fitted is formed in the measuring plate 16, and a guide holder 37 for supporting and fixing the guide 36 is attached to the upper side of the holding block 12 with a bolt 38, and the guide 36 is slidably supported on the measuring plate 16. To be done. Further, pressing plates 39 for pressing the bushes 11 that slidably support the rods 3 are fixed to the left and right ends of the holding block 12 with mounting screws 40.

A commercially available dial gauge is used as the measuring machine 4 for measuring the movement of the rod 3 in the axial direction. A holder 18 for holding and fixing the mounting portion 17 of the measuring machine 4 has an L-shape and holds the mounting portion 17 movably. That is, the mounting portion 17 is supported by the holder 18 so that the tracing stylus 4a is rotated in an appropriate direction by rotating around a bolt (not shown). Further, the holder 18 is fixed to the mounting plate 19.

Next, the moving mechanism section 5 will be described. A base plate 21, which is a part of the main body of the phase difference measuring device 1, is a thick plate having a stepped thick portion formed substantially in the center thereof, and slidably supports the guide bars 22 and 22 via a bush 23. A receiving plate 24 is formed at the tip of the guide bar 22, and the receiving plate 24 is attached to the holding block 12 with bolts 25. The guide bar 22 is fitted into the support plate 26 below the guide bar 22 in the drawing, and is fixed by the set bolt 34. A two-step hole into which a spring 33 is inserted is formed in the base plate 21 in the middle of the two guide bars 22, and a lid 31 is fixedly attached to the base plate 21 with bolts 30. A spring 33 is provided between the support plate 26 and a pressing plate 32 arranged below the lid 31. The spring 33 is held by the spring guide. A cam 27 is arranged below the support plate 26. The cam 27 is positioned and fixed to the cam shaft 29 by the set bolt 28. A felt 35 is inserted between the base plate 21 and the guide bar 22. Further, as shown in FIG. 3, the leg portion 41 of the base plate 21 is made of a thick flat plate, the bushes 47 and 48 are fitted into the bush holes 41a, and the cam shaft 29 is inserted through the bushes 47 and 48. I support you. The lever 42 connected to the cam shaft 29 is fixed to the lever mounting bush 45, and is fixed to the cam shaft 29 at a predetermined position by a driving pin 46. The positioning of the cam shaft 29 in the thrust direction is performed by the collar 49. That is, the set bolt 50 is used to set the collar 49 inside the leg 41 and fix it to determine the thrust direction. Further, as shown in FIG. 4, mounting holes for the stopper pins 43 and 44 of the lever 42 are formed in the leg portion 41 on the side where the lever 42 is arranged, and the stopper pins 43 and 44 are driven therein.

As shown in FIG. 1, a mounting plate 19 of the measuring device 4 and a mounting base 7 of the reference member 6 are arranged on the base plate 21. The mounting plate 19 of the measuring machine 4 is mounted at a predetermined position with a bolt 20. In the present embodiment, the reference member 6 is formed by positioning and fixing a polished round bar on the mounting base 7. As shown in FIG. 3, a reference member holder 55 is fixed to the mount 7 with bolts 54, and the reference member holder 55 holds the reference member 6. Further, as shown in FIG. 1, the mounting base 7 is fixed to a predetermined position of the base plate 21 with bolts 7a. As shown in FIG. 2, the radial positioning pin 51 of the inner diameter screw of the workpiece is set on the radial positioning tool 52 to position the workpiece inner diameter screw in the radial direction. Is fixed to the predetermined position with a bolt 53. It should be noted that a reference member 6 that matches the shape of the thread groove is used depending on the shape of the work.

Next, the operation of the phase difference measuring device 1 will be described. The polishing round bar of the reference member 6 is arranged at the reference phase position of the inner diameter screw according to the rack portion of the steering nut, and the reference value of the measuring machine 4 is determined. Further, the round bar 6a is placed between the work and the mount 7 to stably support the work. The lever 42 is rotated counterclockwise to the position of the stopper pin 43 to raise the moving mechanism portion 5 together with the holding block 12, and the rod 3 supported by the holding block 12 is raised so that the inner diameter screw portion of the workpiece can be easily attached. . The work is set on the reference member 6, and the lever 42 is rotated clockwise to bring the filler 2 into contact with the ball groove of the inner diameter screw after the intermediate processing. Due to the abutment of the filler 2, the work is moved up and down by the movement of the moving mechanism portion 5 due to the variation in the machining allowance of the inner diameter screw, but it does not appear on the measuring machine 4. The rod 3 is moved in the axial direction by the abutting engagement of the filler 2. This is due to the variation in the phase of the inner diameter screw, and the amount of movement is moved by the difference from the phase difference reference value and displayed on the measuring instrument 4 to obtain the phase difference. The phase difference is classified into layers, finishing processing is divided into groups, and finishing processing is performed for each group. A guide 36 that slides in the guide hole of the measuring plate 16 prevents the rod 3 from rotating. Further, the spring 33 arranged in the middle of the guide bar 22 is used for the filler 2 to constantly contact and contact the thread groove with a constant pressure, and the contact pressure is adjusted by the bolt 30. The felt 35 arranged between the base plate 21 and the guide bar 22 is for preventing dust entering the sliding portion of the guide bar 22.

[0013]

[Effect of the device]

 According to the present invention, the following effects can be obtained. (1) There are various factors in the variation of the phase of the screw. For example, since the steps such as the treadmill cannot be detected during machining, the overall result including all the factors was measured by measuring with this device. Phase difference can be measured. (2) By classifying the phase difference data measured by this device into layers, it is possible to stratify into several groups. Efficient machining can be performed without waste of set-up by deciding the machining order and finishing machining for each layered group. (3) The finishing precision of the screw is improved by the finishing process with good procedure and less setup waste. (4) The defect rate can be reduced and the productivity can be improved.

[Brief description of drawings]

FIG. 1 is a side view (partially sectional view) of a phase difference measuring device showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view (partially sectional view) of FIG.

FIG. 4 is a side view of a lever mounting procedure.

[Explanation of symbols]

 1 Phase difference measuring device 2 Fila 3 Rod 4 Measuring device (dial gauge) 4a Measuring element 5 Moving mechanism part 6 Reference member 6a Round bar 7 Mounting base 7a Bolt 8 Holder 9 Hole 10 Tip flat part 11 Bush 12 Holding block 13 Flange part 14 Mounting Screw Hole 15 Bolt 16 Measuring Plate 17 Mounting Part 18 Holding Tool 19 Mounting Plate 20 Bolt 21 Base Plate 22 Guide Bar 23 Bushing 24 Receiving Plate 25 Bolt 26 Supporting Plate 27 Cam 28 Set Bolt 29 Cam Shaft 30 Bolt 31 Lid 32 Holding Plate 33 Spring 34 Set Bolt 35 Felt 36 Guide 37 Guide Holder 38 Bolt 39 Holding Plate 40 Mounting Screw 41 Leg 41a Bushing Hole 42 Lever 43 Stopper Pin 44 Stopper Pin 45 Lever Mounting Bushing 46 Driving Pin 47 Bushing 8 bush 49 collar 50 set bolt 51 positioning pin 52 positioning jig 53 volts 54 volts 55 reference member retainer

Claims (1)

[Scope of utility model registration request] 1. A phase difference measuring device for measuring a phase difference of an inner diameter screw of a work after intermediate processing and stratifying the work for each phase difference, in a tip portion of a rod insertable into the inner diameter of the work. A filler that is fixed and abuts and engages with the inner diameter screw, a measuring machine that abuts and engages with the rod and measures the amount of axial movement of the rod, and a moving mechanism that moves the rod in the radial direction of the workpiece. And a reference member arranged on the fixed side of the device for positioning a work at a reference position.