CN215588628U

CN215588628U - Positioning fixture of ultra-precise numerical control lathe

Info

Publication number: CN215588628U
Application number: CN202122295375.3U
Authority: CN
Inventors: 张生林; 张建奎
Original assignee: Shenzhen Senrun Precision Technology Co ltd
Current assignee: Shenzhen Senrun Precision Technology Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-01-21
Anticipated expiration: 2031-09-18

Abstract

The utility model belongs to the technical field of processing machines, in particular to a positioning clamp of an ultra-precise numerical control lathe, which aims at solving the problem that the existing cylindrical part is inconvenient to process and the data of the processed part is deviated, and the utility model provides a scheme that the positioning clamp comprises a base, wherein the top of the base is fixedly connected with a baffle plate and a fixed plate, two guide plates are fixedly connected between the baffle plate and the fixed plate, the outer walls of the two guide plates are slidably sleeved with a same sliding plate and a positioning plate, the sliding plate is fixedly connected with the positioning plate, the outer wall of the fixed plate is provided with a rectangular hole, the inner wall of the rectangular hole is slidably connected with a rectangular rod, one end of the rectangular rod is fixedly connected with the outer wall of the sliding plate, the top of the base is provided with a strip-shaped groove, the inner wall of the strip-shaped groove is fixedly connected with a straight rack, and the straight rack is engaged with a first gear, so that the utility model is convenient to process the cylindrical part, and deviation of the processed part data is avoided.

Description

Positioning fixture of ultra-precise numerical control lathe

Technical Field

The utility model relates to the technical field of processing machines, in particular to a positioning clamp of an ultra-precise numerical control lathe.

Background

The numerical control lathe is a high-precision and high-efficiency automatic machine tool, is provided with a multi-station cutter tower or a power cutter tower, has wide processing technological properties, plays an increasingly important role in machining due to the characteristics of high efficiency, good flexibility, stable and reliable processing quality and the like of the numerical control lathe, at present, a plurality of hollow shaft parts and cylindrical parts are mainly machined by the numerical control lathe in machining, and a positioning device is required to be used for preventing the position deviation in machining when the hollow shaft parts and the cylindrical parts are machined.

In the prior art, a cylindrical part is inconvenient to machine, and the data of the machined part has deviation, so that an ultraprecise numerical control lathe positioning fixture is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect that the data of a machined part deviates due to the fact that cylindrical parts are inconvenient to machine, and provides a positioning clamp of an ultra-precise numerical control lathe.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an ultra-precise numerical control lathe positioning fixture, includes the base, the top fixedly connected with baffle and the fixed plate of base, two baffles of fixedly connected with between baffle and the fixed plate, the outer wall sliding sleeve of two baffles is equipped with same slide and locating plate, fixed connection between slide and the locating plate, the rectangular hole has been seted up to the outer wall of fixed plate, and the inner wall sliding connection of rectangular hole has the rectangular pole, the one end of rectangular pole and the outer wall fixed connection of slide, the bar groove has been seted up at the top of base, and the inner wall fixedly connected with spur rack in bar groove, the spur rack meshing is connected with first gear, the top fixedly connected with axis of rotation of first gear, the bottom of locating plate is seted up flutedly, the top fixedly connected with drive gear of axis of rotation, the inside of locating plate is equipped with fixed establishment.

Preferably, the fixing mechanism comprises a bolt, the transmission gear is positioned inside the groove, three vertical shafts are rotatably connected inside the groove, second gears are fixedly sleeved on the outer walls of the three vertical shafts, the outer wall of the transmission gear is meshed with the second gears, a lead screw is fixedly connected to the top of the second gear, a screw sleeve is in threaded connection with the outer wall of the lead screw, a sleeve is fixedly connected to the top of the screw sleeve, a placing cylinder is slidably connected to the inner wall of the sleeve, two empty grooves are formed in the outer wall of the placing cylinder, clamping blocks are rotatably connected to the inner walls of the two empty grooves, an arc-shaped block is fixedly connected to one end of each clamping block, a threaded hole is formed in the top of the fixing plate, the inner wall of the threaded hole is in threaded connection with the outer wall of the bolt, a sanding block is rotatably connected to the bottom of the bolt, and the rectangular rod is fixed in position by the sanding block, preventing the rectangular bar from sliding.

Preferably, the bottom of the positioning plate is provided with a round hole, and the inner wall of the round hole is rotatably connected with the outer wall of the rotating shaft.

Preferably, the sanding block is located inside the rectangular hole, three positioning holes are formed in the top of the positioning plate, and cylindrical parts with different sizes can be placed through the three positioning holes.

Preferably, the outer wall of baffle has seted up the spacing groove, the inner wall sliding connection of spacing groove has the stopper, and the one end of stopper and the outer wall fixed connection of slide remove through setting up baffle auxiliary sliding plate 7.

Preferably, the outer wall of the rotating shaft is fixedly sleeved with a first bearing, and the outer ring of the first bearing is fixedly connected with the outer wall of the positioning plate.

Preferably, the outer wall of the vertical shaft is fixedly sleeved with a second bearing, and the outer ring of the second bearing is fixedly connected with the inner wall of the groove.

Compared with the prior art, the utility model has the advantages that:

(1) this scheme is placed three locating hole in proper order according to the part of variation in size, convenient simultaneous processing is carried out to different parts simultaneously, reduce fixed step, promote the rectangle pole and make slide and locating plate move right, the slide moves through spacing groove and stopper, make the sleeve rebound contact with the fixture block after the certain distance through setting up fixed establishment, and then make the fixture block rotate, the fixture block rotates the outer wall that makes arc piece extrusion cylinder class part, thereby carry out the rigidity to it, it makes dull polish piece downstream to rotate the bolt simultaneously, the dull polish piece extrudees the rectangle pole after moving the certain distance, carry out the rigidity to the rectangle pole, thereby the convenience is processed cylinder class part.

(2) The utility model is convenient for processing the cylindrical parts and avoids the deviation of the data of the processed parts.

Drawings

FIG. 1 is a schematic cross-sectional structure view of a positioning fixture of an ultra-precise numerically controlled lathe according to the present invention;

FIG. 2 is an enlarged schematic structural view of a portion A in FIG. 1 of a positioning fixture of an ultra-precise numerically controlled lathe according to the present invention;

FIG. 3 is a schematic top view of a positioning fixture of an ultra-precise numerically controlled lathe according to the present invention;

FIG. 4 is a schematic structural view of a spur rack and a first gear of the positioning fixture of the ultra-precise numerically controlled lathe according to the present invention;

FIG. 5 is a schematic diagram of a fixture block structure of the positioning fixture of the ultra-precise numerically controlled lathe provided by the utility model;

fig. 6 is a schematic structural diagram of a sleeve, a placing cylinder and a fixture block of the positioning fixture of the ultra-precise numerical control lathe.

In the figure: 1. a base; 2. a baffle plate; 3. a guide plate; 4. a fixing plate; 5. a rectangular bar; 6. a slide plate; 7. positioning a plate; 8. straight rack; 9. a first gear; 10. a rotating shaft; 11. a transmission gear; 12. a vertical axis; 13. a second gear; 14. a screw rod; 15. sleeving the silk; 16. a sleeve; 17. placing the cylinder; 18. a clamping block; 19. a bolt; 20. sanding blocks; 21. positioning holes; 22. a limiting groove.

Detailed Description

As shown in fig. 1, fig. 2 and fig. 4, a positioning fixture of an ultra-precise numerical control lathe is provided, which comprises a base 1, a baffle 2 and a fixed plate 4 are fixedly connected to the top of the base 1, two guide plates 3 are fixedly connected between the baffle 2 and the fixed plate 4, the outer walls of the two guide plates 3 are slidably sleeved with a same sliding plate 6 and a same positioning plate 7, the sliding plate 6 is fixedly connected to the positioning plate 7, a limiting groove 22 is formed in the outer wall of the guide plate 3, a limiting block is slidably connected to the inner wall of the limiting groove 22, one end of the limiting block is fixedly connected to the outer wall of the sliding plate 6, a rectangular hole is formed in the outer wall of the fixed plate 4, a rectangular rod 5 is slidably connected to the inner wall of the rectangular hole, one end of the rectangular rod 5 is fixedly connected to the outer wall of the sliding plate 6, a strip-shaped groove is formed in the top of the base 1, a spur rack 8 is fixedly connected to the inner wall of the strip-shaped groove, a first gear 9 is engaged with a first gear 9, a rotating shaft 10 is fixedly connected to the top of the first gear 9, the bottom of locating plate 7 is seted up flutedly, and the top fixedly connected with drive gear 11 of axis of rotation 10, the fixed cover of outer wall of axis of rotation 10 are equipped with first bearing, the outer lane of first bearing and the outer wall fixed connection of locating plate 7, and the round hole has been seted up to the bottom of locating plate 7, and the inner wall of round hole is rotated with the outer wall of axis of rotation 10 and is connected, and the inside of locating plate 7 is equipped with fixed establishment.

As shown in fig. 1, 2, 3, 5 and 6, the fixing mechanism includes a bolt 19, a transmission gear 11 is located inside the groove, the inside of the groove is rotatably connected with three vertical shafts 12, the outer walls of the three vertical shafts 12 are fixedly sleeved with second gears 13, the outer walls of the vertical shafts 12 are fixedly sleeved with second bearings, the outer rings of the second bearings are fixedly connected with the inner walls of the groove, the outer wall of the transmission gear 11 is meshed with the second gears 13, the top of the second gears 13 is fixedly connected with a lead screw 14, the outer wall of the lead screw 14 is in threaded connection with a screw sleeve 15, the top of the screw sleeve 15 is fixedly connected with a sleeve 16, the inner wall of the sleeve 16 is slidably connected with a placing cylinder 17, the outer wall of the placing cylinder 17 is provided with two empty grooves, the inner walls of the two empty grooves are rotatably connected with fixture blocks 18, the fixture blocks 18 are rotated to enable the arc blocks to extrude the outer walls of the cylindrical parts, so as to fix the positions of the arc blocks, one end of the fixture blocks 18 is fixedly connected with the arc blocks, threaded hole is seted up at the top of fixed plate 4, the inner wall of threaded hole and bolt 19's outer wall threaded connection, and the bottom of bolt 19 is rotated and is connected with dull polish piece 20, rotates bolt 19 and makes dull polish piece 20 extrude rectangular rod 5, carries out position fixing to rectangular rod 5, and dull polish piece 20 is located the inside in rectangular hole, and three locating hole 21 has been seted up at the top of locating plate 7, places in three locating hole 21 according to the part of variation in size in proper order.

The working principle is as follows: when cylindrical parts are machined, the parts with different sizes are sequentially placed in the three positioning holes 21, so that the simultaneous machining of different parts is facilitated, the fixing steps are reduced, the rectangular rod 5 is pushed to enable the sliding plate 6 and the positioning plate 7 to move rightwards, the sliding plate 6 moves with the limiting block through the limiting groove 22, the positioning plate 7 moves rightwards to enable the first gear 9 to rotate through the straight rack 8, the first gear 9 rotates to enable the rotating shaft 10 to drive the transmission gear 11 to rotate, the transmission gear 11 rotates to enable the three second gears 13 to rotate through the vertical shaft 12, so that the lead screw 14 rotates to enable the lead screw 14 to enable the lead screw sleeve 15 to move upwards, the lead screw sleeve 15 moves upwards to enable the sleeve 16 to move upwards, the sleeve 16 moves upwards to be in contact with the fixture block 18 after moving upwards to a certain distance, the fixture block 18 rotates to enable the arc-shaped block to rotate, and accordingly the outer wall of the arc-shaped block extrudes the outer wall of the cylindrical parts, carry out the rigidity to it, rotate simultaneously bolt 19 and make dull polish piece 20 downstream, dull polish piece 20 removes extrusion rectangular rod 5 behind the certain distance, carries out the rigidity to rectangular rod 5 to the convenience is processed cylinder class part.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. The positioning fixture for the ultra-precise numerical control lathe comprises a base (1) and is characterized in that a baffle (2) and a fixed plate (4) are fixedly connected to the top of the base (1), two guide plates (3) are fixedly connected between the baffle (2) and the fixed plate (4), the outer walls of the two guide plates (3) are slidably sleeved with the same sliding plate (6) and the same positioning plate (7), the sliding plate (6) is fixedly connected with the positioning plate (7), the outer wall of the fixed plate (4) is provided with a rectangular hole, the inner wall of the rectangular hole is slidably connected with a rectangular rod (5), one end of the rectangular rod (5) is fixedly connected with the outer wall of the sliding plate (6), the top of the base (1) is provided with a strip-shaped groove, the inner wall of the strip-shaped groove is fixedly connected with a straight rack (8), the straight rack (8) is engaged with a first gear (9), and the top of the first gear (9) is fixedly connected with a rotating shaft (10), the bottom of the positioning plate (7) is provided with a groove, the top of the rotating shaft (10) is fixedly connected with a transmission gear (11), and a fixing mechanism is arranged inside the positioning plate (7).

2. The positioning fixture of the ultraprecise numerical control lathe according to claim 1, wherein the fixing mechanism comprises a bolt (19), the transmission gear (11) is located inside the groove, three vertical shafts (12) are rotatably connected inside the groove, the outer walls of the three vertical shafts (12) are fixedly sleeved with second gears (13), the outer wall of the transmission gear (11) is meshed with the second gears (13), the top of the second gears (13) is fixedly connected with a lead screw (14), the outer wall of the lead screw (14) is in threaded connection with a wire sleeve (15), the top of the wire sleeve (15) is fixedly connected with a sleeve (16), the inner wall of the sleeve (16) is slidably connected with a placing cylinder (17), the outer wall of the placing cylinder (17) is provided with two empty grooves, the inner walls of the two empty grooves are rotatably connected with fixture blocks (18), one end of each fixture block (18) is fixedly connected with an arc-shaped block, the top of the fixing plate (4) is provided with a threaded hole, the inner wall of the threaded hole is in threaded connection with the outer wall of the bolt (19), and the bottom of the bolt (19) is rotatably connected with a sanding block (20).

3. The positioning fixture of the ultra-precise numerical control lathe according to claim 1, wherein a round hole is formed at the bottom of the positioning plate (7), and the inner wall of the round hole is rotatably connected with the outer wall of the rotating shaft (10).

4. The positioning fixture of the ultra-precise numerical control lathe according to claim 2, wherein the sanding block (20) is located inside the rectangular hole, and the top of the positioning plate (7) is provided with three positioning holes (21).

5. The positioning fixture of the ultra-precise numerically controlled lathe according to claim 1, wherein a limiting groove (22) is formed in the outer wall of the guide plate (3), a limiting block is slidably connected to the inner wall of the limiting groove (22), and one end of the limiting block is fixedly connected with the outer wall of the sliding plate (6).

6. The positioning fixture of the ultra-precise numerically controlled lathe according to claim 1, wherein a first bearing is fixedly sleeved on the outer wall of the rotating shaft (10), and an outer ring of the first bearing is fixedly connected with the outer wall of the positioning plate (7).

7. The positioning fixture of the ultra-precise numerically controlled lathe according to claim 2, wherein the outer wall of the vertical shaft (12) is fixedly sleeved with a second bearing, and the outer ring of the second bearing is fixedly connected with the inner wall of the groove.