CN111438383A

CN111438383A - Automatic deviation rectifying method and device for hollow shaft machining

Info

Publication number: CN111438383A
Application number: CN202010148784.8A
Authority: CN
Inventors: 左仁盟; 黄立朝; 王旭飞; 何平洲; 王丽
Original assignee: Hubei Hidden Crown Shaft Industry Co ltd
Current assignee: Hubei Hidden Crown Shaft Industry Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-07-24
Anticipated expiration: 2040-03-05
Also published as: CN111438383B

Abstract

The invention discloses an automatic deviation rectifying method and a device for hollow shaft machining, which comprises a lathe body, wherein one side of the lathe body is fixedly connected with a fixed plate, the upper surface and the lower surface of the fixed plate are respectively and fixedly connected with a pre-deviation rectifying device and a fine deviation rectifying device, one end of a rotating rod is fixedly connected with a detector, the invention relates to the technical field of lathe machining, the pre-deviation rectifying device can be used for measuring a hollow shaft to be machined for the first time to determine whether the hollow shaft has a position deviation phenomenon, the pre-deviation rectifying device is prepared for the fine deviation rectifying device, if the deviation phenomenon exists, the detection of the fine deviation rectifying device is not needed, the detection time of the fine deviation rectifying device is reduced, the detection of the fine deviation rectifying device on the whole plane is realized, the accuracy of the deviation rectifying of the hollow shaft is greatly improved, the comprehensive deviation rectifying, finally, the hollow shaft is scrapped, and the material is wasted.

Description

Automatic deviation rectifying method and device for hollow shaft machining

Technical Field

The invention relates to the technical field of lathe machining, in particular to an automatic deviation rectifying method and device for hollow shaft machining.

Background

Lathe machining is a part of mechanical machining and mainly comprises two machining modes, namely, a turning tool is fixed and is used for machining an unformed workpiece in rotation; the other method is to fix the workpiece and perform precision machining by the high-speed rotation of the workpiece and the transverse and longitudinal movement of a turning tool (a tool rest). The numerical control lathe is usually composed of a control system, a servo system, a detection system, a mechanical transmission system and other auxiliary systems, and the precision of each processing surface of a workpiece is easy to ensure; during processing, the workpiece rotates around a certain fixed axis, and each surface has the same rotation axis, so that the requirement of coaxiality between processing surfaces is easy to guarantee; 2, the cutting process is relatively stable; in addition to interrupted surfaces, the turning process is generally continuous, unlike milling and planing, where the teeth cut and cut multiple times during a single pass, creating a shock; 3, the method is suitable for finish machining of non-ferrous metal parts; some nonferrous metal parts have good plasticity due to low hardness of the material, and a smooth surface is difficult to obtain by other processing modes; 4, the cutter is simple; the turning tool is the simplest one of the cutters, and is convenient to manufacture, sharpen and install, so that a reasonable angle can be selected conveniently according to specific processing requirements.

However, when the hollow shaft is machined at present, when a little deviation is caused during the machining due to the charging, the dimension of the hollow shaft is also subjected to error during the machining, and finally the hollow shaft is scrapped, so that the material waste is caused.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an automatic deviation rectifying method and device for hollow shaft machining, which solve the problems that when a hollow shaft is machined at present, and is slightly deviated during loading, the dimension of the hollow shaft is subjected to error during machining, and finally the hollow shaft is scrapped to cause material waste.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the automatic deviation rectifying device for hollow shaft machining comprises a lathe body, wherein a fixing plate is fixedly connected to one side of the lathe body, and a pre-deviation rectifying device and a fine deviation rectifying device are fixedly connected to the upper surface and the lower surface of the fixing plate respectively.

The accurate deviation correcting device includes first fixed block, the relative one side fixedly connected with slide bar of first fixed block, the slider has been cup jointed in the surface activity of slide bar, the equal symmetrical fixedly connected with second fixed block in surface of slider, the axis of rotation has been cup jointed in opposite side one side rotation of second fixed block, the axis of rotation has cup jointed the bearing with the fixed surface that the second fixed block rotated the department of cup jointing, the fixed surface of axis of rotation is connected with the connecting rod, the dwang has been cup jointed in the rotation of the surface of connecting rod, rotate through the round pin post between dwang and the connecting rod and be connected, the one end fixedly connected with detector of dwang.

Preferably, the detector includes the dial plate, scale numerical value has been seted up on the surface of dial plate, the well piece of scale numerical value rotates and is connected with the pointer, the bottom fixedly connected with sleeve pipe of dial plate, sheathed tube inner chamber sliding connection has the measurement contact, the one end fixedly connected with spring of measurement contact, the bottom of dial plate is run through to the one end of spring to in extending the inner chamber of dial plate, the one end fixedly connected with of spring triggers the board, the one end rotation of triggering the board is connected on a side surface of the pointer.

Preferably, the top of the second fixed block is rotatably sleeved with a second screw rod, and one end of the second screw rod is in contact with the surface of the rotating shaft.

Preferably, the pre-deviation correcting device comprises a telescopic plate, a telescopic rod is fixedly connected to the bottom of one end of the telescopic plate, a first sleeve column is fixedly connected to one end of the telescopic rod, and a second sleeve column is movably sleeved on one side of the first sleeve column.

Preferably, the surface of the second sleeve column is fixedly provided with a sliding groove, an inner cavity of the sliding groove and an inner cavity of the first sleeve column are rotatably sleeved with a third screw rod, two sides of the inner cavity of the sliding groove are fixedly provided with threaded strips, and the threaded strips are meshed with threads on the surface of the third screw rod.

Preferably, control switch and thermovent have been fixed respectively to lathe body's left surface, lathe body's fixed surface is provided with the slide rail, sliding connection has the slide on the track of slide rail, the one end of slide sets up the fixed first three-jaw chuck that is provided with, the fixed second three-jaw chuck that is provided with in one side of lathe body left surface, the right fixed surface of slide rail is connected with the nested piece, the fixed rigid coupling has the dead lever between the upper surface of nested piece and the lathe body left surface, the fixed rigid coupling has first lead screw between the lower surface of nested piece and the lathe body left surface, processingequipment has been cup jointed in the surface activity of first lead screw and dead lever.

An automatic deviation rectifying method for hollow shaft machining comprises the following steps;

s1, clamping jaws and fixing the hollow shaft through a first three-jaw chuck and a second three-jaw chuck, and calibrating the pre-correcting device for the first time;

s2, stretching the expansion plate to enable the expansion plate to expand and contract, determining the position of the expansion plate and the hollow shaft, descending the expansion rod to the position where the first sleeve column and the second sleeve column can be sleeved with the hollow shaft by rotating the third screw rod anticlockwise, rotating the third screw rod clockwise to enable the second sleeve column to be meshed with the threads on the surface of the third screw rod again through the thread strips after the expansion rod is stretched, and enabling the second sleeve column to retract inwards until the inner diameters of the second sleeve column and the third screw rod are matched with the outer diameter of the hollow shaft;

s3, observing whether the first sleeve column, the second sleeve column and the outer diameter of the hollow shaft have gaps, if so, proving that the hollow shaft has position deviation in the three-jaw chuck, and re-clamping, if not, performing correction again by the fine correction device.

S4, pulling detector, when pulling detector, connecting rod and dwang can be automatic carry out corresponding change following the removal of detector to and the axis of rotation can rotate on the bearing, will measure the surface that the one end of contact contacted the hollow shaft again, will observe dial plate upper dial plate can not have the change when contacting, will guarantee that the pointer is on the scale numerical value of 0

S5, when the second screw rod is rotated, one end of the second screw rod is in contact with the rotating shaft, the rotating shaft is fixed, and the phenomenon of movement is prevented.

(III) advantageous effects

The invention provides an automatic deviation rectifying method and device for hollow shaft machining. Compared with the prior art, the method has the following beneficial effects:

(1) the hollow shaft to be machined can be measured for the first time through the pre-rectifying device, so that whether the hollow shaft has the phenomenon of position deviation or not is determined, the pre-rectifying device can be used for preparing the fine rectifying device, if the deviation phenomenon exists, the detection of the fine rectifying device is not needed, and the detection time of the fine rectifying device is shortened.

(2) According to the automatic deviation rectifying method and device for hollow shaft machining, the accuracy of deviation rectification of the hollow shaft is greatly improved through full-plane detection of the fine deviation rectifying device, the comprehensiveness of deviation rectification of the hollow shaft can be guaranteed, errors of the hollow shaft can be avoided, and the hollow shaft can be finally scrapped to cause material waste.

(3) According to the automatic deviation rectifying method and device for machining the hollow shaft, the sizes of the second sleeve column and the first sleeve column can be changed through the thread strips and the third screw rod, and pre-detection can be performed according to the sizes of different hollow shafts.

(4) According to the automatic deviation rectifying method and device for machining the hollow shaft, the hollow shafts with different sizes can be accurately detected through the blocking of the second screw rod and the rotation of the connecting rod and the rotating rod.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a fine deviation correcting device according to the present invention;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic view of the detector of the present invention;

FIG. 6 is a schematic structural diagram of a pre-deviation correction device according to the present invention;

fig. 7 is a partial side view of the structure of fig. 6 according to the present invention.

In the figure: 1. a lathe body; 11. a control switch; 12. a heat dissipation port; 13. a slide rail; 14. a slide base; 15. a first three-jaw chuck; 16. a second three-jaw chuck; 17. sleeving blocks; 18. fixing the rod; 19. a first lead screw; 110. a processing device; 2. a fixing plate; 3. a fine deviation correcting device; 31. a first fixed block; 32. a slide bar; 33. a slider; 34. a second fixed block; 35. a rotating shaft; 36. a bearing; 37. a connecting rod; 38. rotating the rod; 39. a pin; 310. a second lead screw; 4. a detector; 41. a dial plate; 42. scale the numerical value; 43. a pointer; 44. a trigger plate; 45. a spring; 46. a sleeve; 47. a measuring probe; 5. a pre-deviation correcting device; 51. a retractable plate; 52. a telescopic rod; 53. a first set of columns; 54. a second set of columns; 55. a third screw rod; 56. a chute; 57. a threaded strip.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a technical solution: the utility model provides an automatic deviation correcting device of hollow shaft processing, including lathe body 1, one side fixedly connected with fixed plate 2 of lathe body 1, deviation correcting device 5 and accurate deviation correcting device 3 are in advance connected with respectively to the upper surface and the lower surface on fixed plate 2 surface, control switch 11 and thermovent 12 have been seted up respectively to the left surface of lathe body 1, the fixed surface of lathe body 1 is provided with slide rail 13, sliding connection has slide 14 on the track of slide rail 13, the one end setting of slide 14 is fixedly provided with first three-jaw chuck 15, the fixed second three-jaw chuck 16 that is provided with in one side of lathe body 1 left surface, the fixed sleeve block 17 that is connected with in right side surface of slide rail 13, fixed dead lever 18 that has cup jointed between the upper surface of sleeve block 17 and the lathe body 1 left surface, the fixed cover that has connect first lead screw 19 between the lower surface of sleeve block 17 and the lathe body 1 left surface, the surface activity of first lead screw 19 and dead lever.

Referring to fig. 2-4, the fine deviation correcting device 3 includes a first fixing block 31, a sliding rod 32 is fixedly connected to a side of the first fixing block 31 opposite to the first fixing block, a sliding block 33 is movably sleeved on a surface of the sliding rod 32, a second fixing block 34 is symmetrically and fixedly connected to a surface of the sliding block 33, a rotating shaft 35 is rotatably sleeved on a side of the second fixing block 34 opposite to the side, a bearing 36 is fixedly sleeved on a surface of a rotating sleeve of the rotating shaft 35 and the second fixing block 34, a connecting rod 37 is fixedly connected to a surface of the rotating shaft 35, a rotating rod 38 is rotatably sleeved on a surface of the connecting rod 37, the rotating rod 38 and the connecting rod 37 are rotatably connected through a pin 39, and.

Referring to fig. 5, the detecting apparatus 4 includes a dial 41, a scale value 42 is disposed on a surface of the dial 41, a middle part of the scale value 42 is rotatably connected with a pointer 43, a sleeve 46 is fixedly connected to a bottom of the dial 41, a measuring contact 47 is slidably connected to an inner cavity of the sleeve 46, a spring 45 is fixedly connected to one end of the measuring contact 47, one end of the spring 45 penetrates through the bottom of the dial 41 and extends into the inner cavity of the dial 41, a trigger plate 44 is fixedly connected to one end of the spring 45, one end of the trigger plate 44 is rotatably connected to a surface on one side of the pointer 43, a second lead screw 310 is rotatably sleeved on a top of the second fixed block 34, and one end of the second lead screw 310 is in.

Referring to fig. 6-7, the pre-deviation-correcting device 5 includes a telescopic plate 51, a telescopic rod 52 is fixedly connected to the bottom of one end of the telescopic plate 51, a first sleeve column 53 is fixedly connected to one end of the telescopic rod 52, a second sleeve column 54 is movably sleeved on one side of the first sleeve column 53, a sliding groove 56 is fixedly formed in the surface of the second sleeve column 54, a third screw rod 55 is rotatably sleeved between an inner cavity of the sliding groove 56 and an inner cavity of the first sleeve column 53, thread strips 57 are fixedly formed on two sides of the inner cavity of the sliding groove 56, and the thread strips 57 are engaged with threads on the surface of the third screw rod 55.

In a further scheme of the invention, the treatment method comprises the following steps: s1, clamping jaws and fixing the hollow shaft through the first three-jaw chuck 15 and the second three-jaw chuck 16, and calibrating the pre-rectifying device 5 for the first time;

s2, stretching the telescopic plate 51 to enable the telescopic plate 51 to stretch, determining the position of the hollow shaft, rotating the third screw rod 55 anticlockwise, enabling the second sleeve column 54 to extend out of the inner cavity of the first sleeve column 53 through the third screw rod 55 and the thread strip 57, lowering the telescopic rod 52 to the position where the first sleeve column 53 and the second sleeve column 54 can sleeve the hollow shaft after stretching the telescopic rod 52, rotating the third screw rod 55 clockwise to enable the second sleeve column 54 to be meshed again through the threads on the surfaces of the thread strip 57 and the third screw rod 55 to enable the second sleeve column 54 to retract inwards until the inner diameters of the second sleeve column 54 and the third screw rod 55 are matched with the outer diameter of the hollow shaft;

s3, observing whether the first sleeve column 53 and the second sleeve column 54 have gaps with the outer diameter of the hollow shaft, if so, proving that the hollow shaft has position deviation in the three-jaw chuck, and re-clamping the hollow shaft, if not, performing the correction again by the fine correction device 3.

S4, pulling the detecting instrument 4, wherein when the detecting instrument 4 is pulled, the connecting rod 37 and the rotating rod 38 automatically follow the movement of the detecting instrument 4 to change correspondingly, the rotating shaft 35 rotates on the bearing 36, one end of the measuring contact 47 is contacted with the surface of the hollow shaft, the dial 41 on the dial 41 cannot be changed when the dial is observed, and the pointer 43 is ensured to be on the scale value 42 of 0

S5, rotating the second lead screw 310 to make one end of the second lead screw 310 contact the rotating shaft 35 to fix the rotating shaft 35 to prevent the moving phenomenon, when the measuring feeler 47 is pushed to move from left to right, or from right to left, the slider 33 slides on the slide bar 32, and when the measuring feeler 47 slides, the spring 45 at the top of the measuring feeler 47 moves the trigger plate 44 to cause a progressive movement of the cursor 43 on the scale 42, indicating the offset of the position of the hollow shaft on the first three-jaw chuck 15 and on the second three-jaw chuck 16, at this time, the positions of the center axes of the second three-jaw chuck 16 and the first three-jaw chuck 15 need to be readjusted, and the in-pointer 43 does not move on the scale value 42, which means that the hollow shaft does not shift in position on the second three-jaw chuck 16 and the first three-jaw chuck 15, and the hollow shaft can be machined by the machining device 110.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hollow shaft processing automatic deviation rectification device, includes lathe body (1), its characterized in that: a fixed plate (2) is fixedly connected to one side of the lathe body (1), and a pre-deviation correcting device (5) and a fine deviation correcting device (3) are fixedly connected to the upper surface and the lower surface of the fixed plate (2) respectively;

the fine deviation correcting device (3) comprises a first fixed block (31), a sliding rod (32) is fixedly connected to one side, opposite to the first fixed block (31), the surface of the slide bar (32) is movably sleeved with a slide block (33), the surfaces of the slide blocks (33) are symmetrically and fixedly connected with second fixed blocks (34), a rotating shaft (35) is rotatably sleeved at one side of the opposite side of the second fixed block (34), a bearing (36) is fixedly sleeved on the surface of the rotary sleeved part of the rotary shaft (35) and the second fixed block (34), the surface of the rotating shaft (35) is fixedly connected with a connecting rod (37), the surface of the connecting rod (37) is rotatably sleeved with a rotating rod (38), dwang (38) and connecting rod (37) are connected through round pin post (39) rotation, the one end fixedly connected with detector (4) of dwang (38).

2. The automatic deviation rectifying device for hollow shaft machining according to claim 1, wherein: the detector (4) comprises a dial (41), scale numerical values (42) are arranged on the surface of the dial (41), a middle part of the scale numerical values (42) is connected with a pointer (43) in a rotating mode, a sliding groove (56) is fixedly connected with the bottom of the dial (41), a measuring contact (47) is connected to the inner cavity of the sliding groove (56) in a sliding mode, a spring (45) is fixedly connected with one end of the measuring contact (47), the bottom of the dial (41) is penetrated by one end of the spring (45) and extends into the inner cavity of the dial (41), a trigger plate (44) is fixedly connected with one end of the spring (45), and the one end of the trigger plate (44) is connected to one side surface of the pointer (43) in a rotating.

3. The automatic deviation rectifying device for hollow shaft machining according to claim 1, wherein: the top of the second fixed block (34) is rotatably sleeved with a second screw rod (310), and one end of the second screw rod (310) is in contact with the surface of the rotating shaft (35).

4. The automatic deviation rectifying device for hollow shaft machining according to claim 1, wherein: the pre-rectifying device (5) comprises a telescopic plate (51), a telescopic rod (52) is fixedly connected to the bottom of one end of the telescopic plate (51), a first sleeve column (53) is fixedly connected to one end of the telescopic rod (52), and a second sleeve column (54) is movably sleeved on one side of the first sleeve column (53).

5. The automatic deviation rectifying device for hollow shaft machining according to claim 4, wherein: the surface of the second sleeve column (54) is fixedly provided with a sliding groove (56), an inner cavity of the sliding groove (56) and an inner cavity of the first sleeve column (53) are rotatably sleeved with a third screw rod (55), two sides of the inner cavity of the sliding groove (56) are fixedly provided with threaded strips (57), and the threaded strips (57) are mutually meshed with threads on the surface of the third screw rod (55).

6. The automatic deviation rectifying device for hollow shaft machining according to claim 1, wherein: the left surface of the lathe body (1) is respectively and fixedly provided with a control switch (11) and a heat dissipation opening (12), a slide rail (13) is fixedly arranged on the surface of the lathe body (1), a slide seat (14) is connected on the track of the slide rail (13) in a sliding way, one end of the sliding seat (14) is fixedly provided with a first three-jaw chuck (15), a second three-jaw chuck (16) is fixedly arranged on one side of the left surface of the lathe body (1), a sleeve block (17) is fixedly connected to the right surface of the slide rail (13), a fixed rod (18) is fixedly sleeved between the upper surface of the sleeve block (17) and the left surface of the lathe body (1), a first screw rod (19) is fixedly sleeved between the lower surface of the sleeve block (17) and the left surface of the lathe body (1), the surfaces of the first screw rod (19) and the fixed rod (18) are movably sleeved with a processing device (110).

7. An automatic deviation rectifying method for hollow shaft machining is characterized by comprising the following steps:

s1, clamping jaws and fixing the hollow shaft through a first three-jaw chuck (15) and a second three-jaw chuck (16), and calibrating the pre-deviation-correcting device (5) for the first time;

s2, stretching the expansion plate (51), enabling the expansion plate (51) to expand and contract, after the position of the expansion plate and the hollow shaft is determined, determining the position, rotating the third screw rod (55) anticlockwise, enabling the second sleeve column (54) to extend outwards from the inner cavity of the first sleeve column (53) through the third screw rod (55) and the thread strip (57), enabling the expansion rod (52) to descend to the position where the first sleeve column (53) and the second sleeve column (54) can sleeve the hollow shaft in a stretching mode, rotating the third screw rod (55) clockwise, enabling the second sleeve column (54) to be meshed again through the threads on the surfaces of the thread strip (57) and the third screw rod (55), and enabling the second sleeve column (54) to retract inwards until the inner diameters of the second sleeve column (54) and the third screw rod (55) are matched with the outer diameter of the hollow shaft;

s3, observing whether the first sleeve column (53) and the second sleeve column (54) have gaps with the outer diameter of the hollow shaft, if so, proving that the hollow shaft has position deviation in the three-jaw chuck, and re-clamping, if not, performing correction again by the fine correction device (3);

s4, pulling the detector (4), wherein when the detector (4) is pulled, the connecting rod (37) and the rotating rod (38) can automatically follow the movement of the detector (4) to change correspondingly, the rotating shaft (35) can rotate on the bearing (36), one end of the measuring contact (47) is contacted with the surface of the hollow shaft, the dial (41) on the dial (41) can not change when the dial is observed, and the pointer (43) is ensured to be on a scale value (42) of 0;

s5, rotating the second screw rod (310), enabling one end of the second screw rod (310) to contact with the rotating shaft (35), enabling the rotating shaft (35) to be fixed, preventing the phenomenon of movement, pushing the measuring contact (47) to move from left to right or from right to left, enabling the sliding block (33) to slide on the sliding rod (32), and when the measuring contact (47) slides, the spring (45) at the top of the measuring contact (47) drives the trigger plate (44) to enable the pointer (43) to move on the scale numerical value (42), so that the situation that the hollow shaft has position deviation on the first three-jaw chuck (15) and the second three-jaw chuck (16) is indicated, at the moment, the positions of the central shafts of the second three-jaw chuck (16) and the first three-jaw chuck (15) need to be readjusted, and the pointer chuck (43) does not move on the scale numerical value (42), which indicates that the hollow shaft (16) and the first three-jaw chuck (15) do not have position deviation, the hollow shaft can be machined by a machining device (110).