CN219665129U - High-precision rotary centering positioning device - Google Patents

Abstract

The utility model provides a high-precision rotary centering positioning device which comprises a fixed plate, wherein an air chuck is arranged at the upper end of the fixed plate, a claw is arranged at the upper end of the air chuck, a turning tool rest is movably and adjustably arranged at the upper end of the fixed plate through an XYZ adjusting mechanism, and a turning tool is fixedly arranged on the turning tool rest. The utility model can enable nonstandard equipment to have the condition of directly repairing the claw on the lathe, thereby driving the turning tool to directly correct the claw precision, overcoming the problems of accumulated error and integral disassembly to a certain extent and having higher efficiency; the XYZ adjusting mechanism can be free to move, the maneuverability is improved, the auxiliary effect can be achieved on the problem of improving the claw precision, and the claw precision is further improved.

Description

High-precision rotary centering positioning device

Technical Field

The utility model relates to a non-calibration type rotary chuck centering mechanism, in particular to a high-precision rotary centering positioning device.

Background

The nonstandard equipment is nonstandard equipment, is not equipment manufactured according to unified industry standards and specifications issued by the nation, and is manufactured by self-design according to the application requirements of the nonstandard equipment. And the appearance or performance is not within the national device inventory. In the development process of nonstandard equipment, the rotary chuck mechanism is composed of a plurality of parts, tolerance ranges of the parts are necessarily existed in the machining process, when the clamping jaw at the end part is used for clamping, accumulated errors reach a certain magnitude, smoothness of operation of the clamping jaw can be affected, and even the clamping jaw cannot normally operate. In order to reduce errors, high-precision machining can be performed on each part and each link, but higher cost is generated, and the manufacturing and maintenance cost of equipment is increased. If the main shaft and the like under the claw are integrally detached, the precision of the removal is difficult to realize. And when part of the mechanism is detached to remove the lathe turning precision, precision errors can exist during reassembling, and the debugging difficulty is extremely high.

Meanwhile, the existing XYZ adjusting mechanism has no steering function and cannot finely adjust the position of a turning tool when the clamping jaw is corrected, and the precision of the clamping jaw cannot be further improved although the adjusting mechanism has a certain adjusting function.

Disclosure of Invention

The utility model provides a high-precision rotary centering positioning device which can effectively solve the problems.

The utility model is realized in the following way:

the high-precision rotary centering positioning device comprises a fixed plate, wherein the upper end of the fixed plate is provided with an air chuck, the upper end of the air chuck is provided with a claw, the upper end of the fixed plate is also provided with a lathe tool rest which is movably and adjustably provided with a lathe tool through an XYZ adjusting mechanism,

the bottom of the XYZ adjusting mechanism is provided with a multifunctional auxiliary mechanism, the multifunctional auxiliary mechanism comprises a bottom plate and a rotating piece, the bottom plate is provided with a round groove, the upper end of the rotating piece is fixedly connected to the bottom of the XYZ adjusting mechanism, and the lower end of the rotating piece is rotatably embedded in the round groove;

the two sides of the bottom plate are fixedly connected with pivot seats, connecting shafts are rotatably arranged at the concave parts of the front ends of the pivot seats, L-shaped connecting rods are fixedly arranged on the connecting shafts, and universal wheels are assembled at the lower ends of the L-shaped connecting rods; the connecting assembly is used for fixing the L-shaped connecting rod.

As a further improvement, the connecting component comprises a fixed rod, a rotating plate, a bolt and a supporting seat, wherein the supporting seat is fixedly arranged on the pivot seat, and the L-shaped connecting rod is in vertical butt joint with the supporting seat; the fixed rod is connected with the pivot seat through threads; one end of the rotating plate is rotatably sleeved on the fixed rod, and the other end of the rotating plate is connected with the L-shaped connecting rod through the bolt.

As a further improvement, both side corners of the bottom plate are connected with limiting pieces in a threaded mode, and limiting plates used for limiting the rotation of the bottom plate are rotatably arranged on the outer walls of the limiting pieces.

As a further improvement, the concave part at the upper end of the pivot seat is fixedly connected with two clamping blocks for clamping the L-shaped connecting rod at the rear position of the connecting shaft.

The beneficial effects of the utility model are as follows:

(1) Through the simple and easy XYZ adjustment mechanism of setting up, can make nonstandard equipment itself possess the condition of directly repairing the jack catch on the lathe to drive the lathe tool and directly revise jack catch precision, have simple high-efficient characteristics, and rotatory high accuracy mechanism on the conventional nonstandard equipment is more through improving the machining precision of each spare part, overcome accumulated error, with the final value of beating down, if spare part is too much, accumulated error will be difficult to eliminate, if the spare part is too big, can't correct through the mode of whole dismantlement turning, XYZ adjustment mechanism has overcome accumulated error and whole dismantlement's problem to a certain extent, and efficiency is higher.

(2) Through the multifunctional auxiliary mechanism, the XYZ adjusting mechanism can be perfected on the basis of the functions of the XYZ adjusting mechanism, the XYZ adjusting mechanism can be ensured to move freely, the maneuverability is improved, in addition, the auxiliary effect can be achieved on the problem of improving the precision of the clamping jaw, and the precision of the clamping jaw is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of the present utility model.

Fig. 2 is an exploded view of the present utility model.

Fig. 3 is a schematic structural view of the multifunctional auxiliary mechanism of the present utility model.

Fig. 4 is an enlarged view of the present utility model a.

Reference numerals illustrate:

1. a fixing plate; 2. a rotary power mechanism; 3. rotating the main shaft; 4. an air chuck; 5. a claw; 6. a chuck anti-rotation member; 7. an XYZ adjustment mechanism; 8. turning a knife rest; 9. turning tools;

10. a multifunctional auxiliary mechanism; 100. a bottom plate; 101. a circular groove; 102. a rotating member; 103. a limiting piece; 104. a limiting plate; 105. a pivot seat; 106. a connecting shaft; 107. an L-shaped connecting rod; 108. a universal wheel; 109. a fixed rod; 110. a rotating plate; 111. a plug pin; 112. a butt joint seat; 113. and a clamping block.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-4, a high-precision rotary centering positioning device comprises a fixed plate 1, wherein an air chuck 4 is arranged at the upper end of the fixed plate 1, a claw 5 is arranged at the upper end of the air chuck 4, a lathe tool rest 8 is movably and adjustably arranged at the upper end of the fixed plate 1 through an XYZ adjusting mechanism 7, and a lathe tool 9 is fixedly arranged on the lathe tool rest 8. Specifically, the XYZ adjusting mechanism 7 further comprises two handwheels and a crank, so that the lathe tool rack 8 and the lathe tool 9 can be calibrated, the lathe tool 9 can be ensured to correct the clamping jaw 5, and the precision of the clamping jaw 5 is improved. The bottom of the fixed plate 1 is provided with a rotary power mechanism 2 driving a rotary main shaft 3. Specifically, the rotary power mechanism 2 includes a motor, a belt of a belt pulley machine, and other structures (as can be seen in fig. 2), the motor provides power, two groups of belt pulleys are respectively installed at one end of the motor and one end of the rotary spindle 3, so as to drive the rotary spindle 3 to rotate, and the rotary spindle 3 drives the inner shaft of the air chuck 4 to rotate, so that the claw 5 rotates (the motor and other structures are conventional common technical structures, and redundant description is omitted here). The upper end of the rotary spindle 3 is rotatably provided with an air chuck 4, the upper end of the air chuck 4 is provided with a claw 5, the outer wall of the air chuck 4 is in threaded connection with a chuck anti-rotation piece 6, and one end of the chuck anti-rotation piece 6 is connected with the fixed plate 1. Specifically, the air chuck 4 is connected to an existing electromagnetic valve (the electromagnetic valve is in the prior art, its specific structure and the connection manner between the mechanisms are not described here in detail), and the electromagnetic valve controls the expansion and contraction of the air chuck 4.

Preferably, the claw 5 expanding outwards and contracting inwards clamps a cylinder or a circular ring similar to a workpiece, and because a gap exists between the claw 5 and the cylinder or the circular ring when the claw 5 clamps the cylinder or the circular ring, and the possibility that the claw 5 controlled by the pneumatic chuck 4 and the electromagnetic valve is loosened in the clamping process also occurs, the precision of the claw 5 is reduced, at the moment, the claw 5 is directly turned by the turning tool 9, the size of the gap between the claw 5 and the cylinder or the circular ring is reduced, and the precision of the claw 5 is further improved. The cylinder or the ring is only an auxiliary product for adjusting the precision of the claw 5, and the turning tool 9 is not directly contacted with the cylinder or the ring, so that the claw 5 is machined to be concentric (the corresponding equivalent-sized ring is clamped by the outer expansion when the outer circle is turned, and then the turning operation is performed by the corresponding equivalent-sized cylinder is clamped by the inner contraction when the inner circle is turned). Further, after the claw 5 reaches the precision, the XYZ adjusting mechanism 7, the lathe tool rest 8 and the lathe tool 9 can be removed, so that other mechanisms can be conveniently installed and operated. Through the operation, the working position of the claw 5 reaches the target precision; the fixed plate 1, the rotary main shaft 3, the air chuck 4, the clamping jaw 5, the XYZ adjusting mechanism 7, the turning tool rest 8 and the turning tool 9 are required to have certain rigidity, deformation exceeding the precision requirement is avoided in the cutting process, the strength of the rotary main shaft 3 and the rotation precision of the bearing are required to be achieved, fine adjustment is not required to eliminate gaps in installation among other mechanisms, and high-precision concentricity is not required to be considered in processing of the clamping jaw 5. The final requirement is directly met through turning operation of the XYZ adjusting mechanism 7, the turning tool rest 8 and the turning tool 9. In the use process, if concentricity is reduced due to position adjustment/offset and the like, the precision can be recovered by only re-fixing and fastening the related mechanism and reusing the turning of the XYZ adjusting mechanism 7, the turning tool rest 8 and the turning tool 9.

Specifically, the mechanism for rotating the spindle 3 to the claw 5 has an accumulated error on one hand and an end lever amplification on the other hand, no matter how the machining condition is, the error of 0.01 exists in the spindle 3, the error of 0.3-0.5 can be possibly reached to the clamping position of the claw 5, and after the error is corrected by the turning tool 9, the precision can reach the end workpiece precision of 0.03-0.05 (the precision of 0.01-0.02 can be reached to the position of the claw 5). Meanwhile, the simple triaxial adjusting mechanism drives the turning tool 9 to directly correct the precision of the claw 5, so that the non-standard equipment has the characteristics of simplicity and high efficiency, and further has the condition of directly correcting the claw on the lathe; preferably, the rotary high-precision mechanism on the conventional nonstandard equipment is more in that the machining precision of each part is improved, the accumulated error is overcome, so that the final jumping value is reduced, if the parts are too many, the accumulated error is difficult to eliminate, and if the parts are too large, the parts cannot be corrected in a turning mode through integral disassembly, and the device solves the problems of the accumulated error and integral disassembly to a certain extent.

The bottom of XYZ adjustment mechanism 7 is provided with multi-functional auxiliary mechanism 10, and multi-functional auxiliary mechanism 10 includes bottom plate 100 and rotation piece 102, and circular slot 101 has been seted up to bottom plate 100, and rotation piece 102's upper end fixed connection is in XYZ adjustment mechanism 7's bottom, and rotation piece 102's lower extreme rotationally inlays locates circular slot 101. Specifically, one end of the rotating member 102 is connected to the bottom of the base plate 100 by a conventional component such as a screw, so that the base plate 100 can be rotated left and right, and the XYZ adjustment mechanism 7 is further trimmed.

Pivot seats 105 are fixedly connected to both sides of the base plate 100. Specifically, the pivot base 105 can contact with the contact surface, so that the contact area between the overall structure and the contact surface is increased, and the stability is improved. A connecting shaft 106 is rotatably arranged at the concave part of the front end of the pivot base 105, an L-shaped connecting rod 107 is fixedly arranged on the connecting shaft 106, and a universal wheel 108 is assembled at the lower end of the L-shaped connecting rod 107; and also includes a connection assembly that secures the L-shaped connection rod 107. Specifically, the connecting shaft 106 and the L-shaped connecting rod 107 have a certain rigidity, and the XYZ adjusting mechanism 7 can be separated from the contact surface, so that the movement is facilitated. The upper end of the pivot seat 105 is concavely provided with two clamping blocks 113 which are fixedly connected with the rear position of the connecting shaft 106 and are used for clamping the L-shaped connecting rod 107, and the clamping blocks 113 can enable the L-shaped connecting rod 107 to rotate by using the connecting shaft 106 after the mechanism is used, and are clamped with the clamping blocks 113, so that the L-shaped connecting rod 107 and other structures are accommodated. The connecting component comprises a fixed rod 109, a rotating plate 110, a bolt 111 and a supporting seat 112, wherein the supporting seat 112 is fixedly arranged on the pivot seat 105, and the L-shaped connecting rod 107 is in up-down abutting connection with the supporting seat 112; the fixing rod 109 is connected to the pivot base 105 through threads; one end of the rotating plate 110 is rotatably sleeved on the fixed rod 109, and the other end of the rotating plate 110 is connected with the L-shaped connecting rod 107 through a bolt 111. Specifically, one end of the abutment 112 is further provided with an abutment rod (not shown) that can support the L-shaped connecting rod 107 to have a supporting point, so as to prevent the L-shaped connecting rod 107 from rotating downward due to the connecting shaft 106.

As a specific embodiment of the present utility model, when the XYZ adjusting mechanism 7 needs to be moved onto the fixed plate 1 or the refastened plate 1, the L-shaped connecting rod 107 can be rotated outwards through the connecting shaft 106 on the pivot base 105 until the universal wheel 108 on the L-shaped connecting rod 107 is leveled with the contact surface, at this time, the L-shaped connecting rod 107 contacts with the contact rod on the contact base 112, the rotating plate 110 is rotated by the fixing rod 109 to enable the rotating plate to rotate to the upper position of the L-shaped connecting rod 107, and then the pin 111 is inserted into the L-shaped connecting rod 107 (the pin hole is formed in the L-shaped connecting rod 107, which is not shown in the figure), so that the L-shaped connecting rod 107 is fixed and cannot rotate backwards, and other three groups of related structures of universal wheels 108 are all repeatedly operated, the XYZ adjusting mechanism 7 can be separated from the contact surface and can be moved, so that the problem of difficult position trimming can be solved, and mobility is improved; further, when the hand wheel and the crank in the XYZ adjusting mechanism 7 correct the turning tool holder 8 and the turning tool 9, the turning tool 9 can not accurately turn the claw 5 due to limited correction conditions, and at this time, the added rotating piece 102 can assist the XYZ adjusting mechanism 7, so that the angle of the XYZ adjusting mechanism 7 is finely adjusted, and the precision of turning the claw 5 by the turning tool 9 is improved; preferably, the XYZ adjusting mechanism 7 itself is not light in weight, so the rotating piece 102 does not cause the rotation amplitude of the XYZ adjusting mechanism 7 to be excessively large, and the corrected XYZ adjusting mechanism 7 can also be limited by the arrangement of the four sets of limiting plates 104, also in order to prevent slight deviation of the XYZ adjusting mechanism 7 from affecting the accuracy of the claw 5 when the turning tool 9 is adjusted.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (4)

1. The high-precision rotary centering positioning device comprises a fixed plate (1), wherein the upper end of the fixed plate (1) is provided with an air chuck (4), the upper end of the air chuck (4) is provided with a claw (5), the upper end of the fixed plate (1) is also provided with a lathe tool rest (8) which is movably and adjustably provided with a lathe tool (9) through an XYZ adjusting mechanism (7), the lathe tool rest (8) is fixedly provided with a lathe tool (9) and is characterized in that,

the multifunctional auxiliary mechanism (10) is arranged at the bottom of the XYZ adjusting mechanism (7), the multifunctional auxiliary mechanism (10) comprises a bottom plate (100) and a rotating piece (102), the bottom plate (100) is provided with a round groove (101), the upper end of the rotating piece (102) is fixedly connected to the bottom of the XYZ adjusting mechanism (7), and the lower end of the rotating piece (102) is rotatably embedded in the round groove (101);

the two sides of the bottom plate (100) are fixedly connected with pivot seats (105), a connecting shaft (106) is rotatably arranged at the concave position of the front end of each pivot seat (105), an L-shaped connecting rod (107) is fixedly arranged on each connecting shaft (106), and universal wheels (108) are assembled at the lower ends of the L-shaped connecting rods (107); also comprises a connecting component for fixing the L-shaped connecting rod (107).

2. The high-precision rotary centering positioning device according to claim 1, wherein the connecting assembly comprises a fixed rod (109), a rotating plate (110), a bolt (111) and a supporting seat (112), the supporting seat (112) is fixedly arranged on the pivot seat (105), and the L-shaped connecting rod (107) is in up-and-down abutting connection with the supporting seat (112); the fixed rod (109) is connected with the pivot seat (105) through threads; one end of the rotating plate (110) is rotatably sleeved on the fixed rod (109), and the other end of the rotating plate (110) is connected with the L-shaped connecting rod (107) through the bolt (111).

3. The high-precision rotary centering positioning device according to claim 1, wherein limiting pieces (103) are connected to corners of two side surfaces of the base plate (100) in a threaded mode, and limiting plates (104) used for limiting rotation of the base plate (100) are rotatably arranged on outer walls of the limiting pieces (103).

4. The high-precision rotary centering positioning device according to claim 1, wherein two clamping blocks (113) for clamping the L-shaped connecting rod (107) are fixedly connected to the concave position of the upper end of the pivoting seat (105) at the rear position of the connecting shaft (106).