CN211218714U

CN211218714U - Accurate centering auxiliary device of lathe

Info

Publication number: CN211218714U
Application number: CN201922128230.7U
Authority: CN
Inventors: 周强; 李松
Original assignee: Zhangqiu Prius Forging Co ltd
Current assignee: Zhangqiu Prius Forging Co ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-08-11
Anticipated expiration: 2029-11-30

Abstract

The utility model relates to a technical field of lathe, a accurate centering auxiliary device of lathe, connect the measuring tape in the chi shell with rotating including the chi shell of base, fixed connection on the base, it is top to aim at behind 0 scale mark department and the lathe tailstock on the measuring tape, and 0 scale mark department is the position that the centre of a circle should be in for the blank does not centre gripping one end centre of a circle. The utility model discloses have through the position that the centre of a circle of the centre gripping one end should not be confirmed to top alignment behind measuring tape and the lathe tailstock to come to carry out the effect of rectifying to the stock according to the centre of a circle position.

Description

Accurate centering auxiliary device of lathe

Technical Field

The utility model belongs to the technical field of the technique of lathe and specifically relates to a lathe accurate centering auxiliary device is related to.

Background

A lathe is a machine tool that performs turning of a rotating workpiece mainly by using a turning tool. The blank is fixed on a chuck, and different workpieces can be obtained by selecting different turning tools after centering.

For example, a Chinese patent with an authorization publication number of CN203679433U discloses a common lathe, which relates to the technical field of mechanical equipment. The one end of right side head of a bed is provided with right side bed pole, and right side bed pole corresponds the setting with left bed pole, evenly is provided with the right reamer of several on the right side bed pole, is provided with the lathe carriage apron case on the lathe body, and the upper end of lathe carriage apron case is provided with the anchor clamps bottom plate, and the upper end of anchor clamps bottom plate is provided with the bent plate, and the rear end of board is provided with the back lid, and one side of back lid is provided with the clamp plate, and lower extreme one side of lathe body is provided with puts the thing. The multifunctional clothes hanger is reasonable in structural design, simple to operate, convenient to use, diversified in function and wide in application range.

In actual work, when one end of a blank is clamped and fixed on the three-jaw chuck, the end of the blank which is not clamped and fixed is deflected and amplified due to the overlong blank, the end of the blank which is not clamped and fixed needs to be protected, and the center of a circle cannot be determined by drilling a hole at the end, which is not clamped, of the blank through a rear tip on the tailstock. In actual work, adjustment can only be performed through the experience of workers, and a lot of time is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an accurate centering auxiliary device of lathe confirms the centre of a circle through the measuring tape and should rectify the skew that leads to because of the stock overlength in the position to practice thrift the centering time.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a lathe accurate centering auxiliary device, includes the base, the chi shell of fixed connection on the base and connects the measuring tape in the chi shell, 0 scale mark department on the measuring tape aligns with lathe tailstock back top, and 0 scale mark department is the position that the centre of a circle should be in the non-centre gripping one end of stock.

By adopting the technical scheme, the position where the center of a circle of the end of the blank which is not clamped is located can be determined, so that the blank is corrected according to the position of the center of the circle.

The utility model discloses further set up to: the ruler shell comprises a shell body, the shell body is two parallel cuboid plates which are the same, a gap is reserved between the two cuboid plates, the gap is a mounting groove, the lower ends of the two cuboid plates are fixedly connected to the base, the shell body is connected with the measuring scale through a rotating shaft, and the inner side of the shell body is attached to the measuring scale.

By adopting the technical scheme, the measuring scale can rotate in the scale shell, and the measuring scale can be accommodated in the scale shell.

The utility model discloses further set up to: the measuring scale comprises an upper graduated scale and a lower rod, the upper graduated scale is integrally connected with the lower rod, and the upper graduated scale is longer than the lower rod.

Through adopting above-mentioned technical scheme, can be through the operation lower beam to be convenient for operate the rotation of measuring tape.

The utility model discloses further set up to: one end of the lower rod, which is far away from the rotating shaft, is semicircular.

Through adopting above-mentioned technical scheme, when the equivalent weight chi rotated, the lower beam can be shifted into the chi shell smoothly in, can not block.

The utility model discloses further set up to: the upper graduated scale is connected with two sliding blocks in a sliding manner, and the sliding blocks slide along the direction of the graduation lines of the upper graduated scale.

By adopting the technical scheme, the two sliding blocks assist in observing the distance from the two points which are farthest away to the circle center on the circle, so that how to correct the offset blank is determined according to the distance from the circle center to the two points.

The utility model discloses further set up to: the upper graduated scale is provided with a chute, and the chute and one end of the upper graduated scale, which is far away from the rotating shaft, are not opened; the slider is provided with a convex block, and the convex block is arranged in the sliding groove and is in sliding connection with the sliding groove.

Through adopting above-mentioned technical scheme, make the slider can not follow the scale and slide off when sliding on last scale.

The utility model discloses further set up to: the ruler shell further comprises an upper limiting block and a lower limiting block, the upper limiting block and the lower limiting block are fixedly connected in the mounting groove, the upper limiting block is located on one side, away from the blank, of the mounting groove, the lower limiting block is located on one side, close to the blank, of the mounting groove, the upper limiting block and the lower limiting block are arranged up and down, the height of the upper limiting block is larger than that of the lower limiting block, and the height difference between the upper limiting block and the lower limiting block is equal to the width of the measuring ruler in the vertical direction.

By adopting the technical scheme, the measuring scale is limited from rotating when rotating to be vertical to the scale shell, so that the measuring scale is fixed at the position vertical to the scale shell; rotate the measuring tape and make it keep away from the stock, when the measuring tape contradicts with last spacing piece and lower spacing piece, the measuring tape focus falls in the axis of rotation and goes up between the spacing piece to prevent that the measuring tape from falling back.

The utility model discloses further set up to: the base comprises a base body and a reinforcing block, one end of the shell is fixedly connected to the base body, the reinforcing block is sleeved on the shell, and one side, far away from the rotating shaft, of the reinforcing block is fixedly connected with the base body.

Through adopting above-mentioned technical scheme, the reinforcing block increases chi shell and base joint strength, reduces the cracked possibility of joint face.

The utility model discloses further set up to: a groove is formed in one side, far away from the reinforcing block, of the base.

Through adopting above-mentioned technical scheme, settle the base on the lathe saddle, move along with the lathe saddle removes.

The utility model discloses further set up to: bolt holes are formed in the two sides of the base, which are parallel to the ruler shell.

Through adopting above-mentioned technical scheme, after the base confirmed the accurate position, screw up the bolt, avoid turning over from lathe saddle case one end and drop because of exerting oneself too big when the measuring tape changes away from the stock and lead to whole device.

To sum up, the utility model discloses a beneficial technological effect does:

1. the measuring tape is aligned with the rear center of the lathe to determine the position of the circle center, the blank is corrected according to the determined position of the circle center, and the measuring tape can meet the requirements of blanks with different diameters;

2. the slide block can slide on the upper graduated scale, and the correction direction of the blank is determined by determining two points on the circle which are closest to each other and observing the distance between the two points and the circle center;

3. the rotating shaft can enable the measuring tape to rotate and be accommodated in the shell, so that space is saved;

4. the base is provided with a groove, the device is fixed on a lathe slide carriage of a lathe, and the device can move along with the lathe slide carriage to realize horizontal movement, so that the device is prevented from deviating in the moving process.

Drawings

Fig. 1 is a schematic perspective view of the present embodiment.

Fig. 2 is a schematic structural diagram for showing an upper limit block and a lower limit block in the present embodiment.

Fig. 3 is a schematic structural diagram for showing a slider in the present embodiment.

Reference numeral, 1, measuring tape; 11. an upper graduated scale; 12. a lower rod; 2. a ruler shell; 21. a housing; 22. a lower limiting block; 23. an upper limit block; 3. a base; 31. an enhancement block; 32. a base body; 4. a slider; 5. a bump; 6. a chute; 7. A rotating shaft; 8. bolt holes; 9. a groove; 10. and (4) mounting the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): the utility model provides a lathe accurate centering auxiliary device, refers to figure 1, includes base 3, vertically fixes ruler shell 2 on base 3, is provided with axis of rotation 7 on the ruler shell 2, and ruler shell 2 rotates through axis of rotation 7 and is connected with measuring tape 1. When the device is used for assisting blank centering, the measuring scale 1 is firstly rotated to be horizontal and vertical to the scale shell 2, the scale mark 0 is aligned with the rear center on the lathe tailstock, the device is fixed on a lathe slide carriage of a lathe, and the lathe slide carriage is moved to move the device to the blank. And determining the position of the center of the blank according to the 0 scale mark on the measuring tape 1, and adjusting the blank to enable the center of the blank to reach the position to be located, so as to finish centering the blank.

Referring to fig. 1, the base 3 includes a reinforcing block 31 and a base body 32, one end of the casing 21 is vertically and fixedly connected to the base body 32, the reinforcing block 31 is sleeved on the casing 21, and one side of the reinforcing block 31 away from the rotating shaft is fixedly connected to the base body 32. The reinforcing block 31 reinforces the connection strength between the housing 21 and the base body 32, and reduces the possibility of fracture of the connection surface.

Referring to fig. 1, base body 32 keeps away from reinforcing block 31 one side and has seted up recess 9, and the recess 9 direction is the same with the 1 direction of measuring tape, places the device on the platform of lathe saddle case keeping away from lathe tool one end, and when the lathe saddle case removed, recess 9 made the device horizontal migration thereupon, guaranteed that the device can not produce the skew because of removing. The bolt holes 8 are formed in the two sides, not connected with the ruler shell 2, of the base 3, after the accurate position of the base 3 is determined, the bolt is screwed down, and the phenomenon that the whole device is turned over and falls off from one end of a lathe carriage box due to the fact that the measuring ruler 1 is too large in force when rotating away from blanks is avoided.

Referring to fig. 1, the measuring tape 1 includes an upper scale 11 and a lower rod 12, and one end of the upper scale 11 adjacent to the rotation shaft 7 is connected to one end of the lower rod 12 adjacent to the rotation shaft 7. The 0 scale mark on the upper scale 11 is aligned with the rear center of the lathe tailstock, and the 0 scale mark on the upper scale 11 is the position where the center of the circle of the blank is to be located. The end of the lower rod 12 far away from the rotating shaft 7 is semicircular, so that the lower rod 12 is prevented from being blocked by the base 3 in the rotating process.

Referring to fig. 1, a slide block 4 is slidably connected to the upper scale 11, and the slide block 4 can assist in observing the distance from the two points on the circle farthest away to the center of the circle, so as to determine the blank calibration direction.

Referring to fig. 1 and 2, the tape measure housing 2 comprises a housing 21, an upper limit block 22 and a lower limit block 23. Casing 21 is two parallel and the same cuboid boards, leaves the space between two cuboid boards, and this space is mounting groove 10, two cuboid board lower extreme fixed connection in base 3. The shell 21 is connected with the measuring tape 1 through the rotating shaft 7, the inner side of the shell 21 is attached to the measuring tape 1, and the measuring tape 1 can enter the shell 21 when being rotated.

Referring to fig. 2, the upper limiting block 22 and the lower limiting block 23 are fixedly connected in the mounting groove 10, the upper limiting block 22 is located on one side of the mounting groove 10 away from the lathe spindle, the lower limiting block 23 is located on one side of the mounting groove 10 close to the lathe spindle, the upper limiting block 22 and the lower limiting block 23 are arranged up and down, the height of the upper limiting block 22 is larger than the height 23 of the lower limiting block, and the height difference between the upper limiting block 22 and the lower limiting block 23 is equal to the width of the measuring tape 1 in the vertical direction. When the measuring tape 1 rotates to a position vertical to the tape shell 2, one side of the lower rod 12 abuts against one side of the upper limiting block 22, and the upper graduated scale 11 abuts against one side of the lower limiting block 23, so that the measuring tape 1 is in a horizontal state. Go up spacing piece 22 and keep away from base 3 one end to casing 21 and spacing piece 23 and casing 21 fixed connection all have a certain distance in base 3 one end down, rotate measuring tape 1 and make measuring tape 1 focus fall into between axis of rotation 7 and last spacing piece 22, avoid measuring tape 1 to fall back by oneself. The linear distance between the upper limit block 22 and the lower limit block 23 is larger than the width of the measuring tape 1, so that the measuring tape 1 can rotate in the tape shell 2.

In order to show the connection relationship between the slide block 4 and the upper graduated scale 11, referring to fig. 3, a convex block 5 is arranged in the slide block 4, sliding grooves 6 are formed in two sides of the graduated surface close to the upper graduated scale 11, the convex block 5 is arranged in the sliding grooves 6 and is in sliding connection with the sliding grooves 6, the sliding grooves 6 are not opened at one end of the upper graduated scale 11, which is far away from the rotating shaft 7, and the slide block 4 can be prevented from sliding off the upper graduated scale 11.

The implementation manner of the embodiment is as follows: when using this accurate centering auxiliary device, keep away from the platform of lathe tool one end with base 3 joint at the lathe saddle case, rotate measuring tape 1 and make measuring tape 1 contradict with last spacing block 22 and spacing block 23 down, measuring tape 1 is perpendicular with chi shell 2 this moment. And aligning the 0 scale mark of the upper scale 11 with the rear center on the tailstock, screwing the bolt in the base bolt hole 8, and moving the lathe slide box to enable the upper scale 11 of the device to be close to the blank. Observing the blank and the upper graduated scale 11, wherein the 0 graduation line is the circle center of the blank with the end circular surface not clamped and corresponding to the circle center, sliding the 4 sliding blocks to enable the two sliding blocks 4 to be respectively positioned at the left side and the right side of the blank, observing the distance between the two sliding blocks 4 and the 0 graduation line, correcting the blank to enable the distances between the two sliding blocks 4 and the 0 graduation line to be the same, rotating the blank, and repeating the operation to enable the blank to be completely centered.

After the blank is centered, the two slide blocks 4 slide to the end, far away from the rotating shaft 7, of the upper graduated scale 11, the slide blocks 4 are pressed, the measuring scale 1 is rotated to enable the measuring scale 1 to be far away from the lathe, and the measuring scale 1 is enabled to abut against the upper limiting block 22 and the lower limiting block 23.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a lathe accurate centering auxiliary device which characterized in that: the measuring tape comprises a base (3), a tape shell (2) fixedly connected to the base (3) and a measuring tape (1) connected to the tape shell (2) and provided with scale marks, wherein the scale mark 0 on the measuring tape (1) is aligned with the rear tip of a lathe tailstock, and the scale mark 0 is the position where the center of a circle of the unclamped end of a blank is located.

2. The lathe precision centering auxiliary device of claim 1, wherein: the ruler shell (2) comprises a shell (21), the shell (21) is two parallel cuboid plates which are the same, a gap is reserved between the two cuboid plates, the gap is a mounting groove (10), the lower ends of the two cuboid plates are fixedly connected to the base (3), the shell (21) is connected with the measuring scale (1) through a rotating shaft (7), the rotating shaft is horizontally arranged and parallel to a main shaft of a lathe, and the inner side of the shell (21) is attached to the measuring scale (1).

3. A lathe precision centering aid as claimed in claim 2, wherein: the measuring scale (1) comprises an upper graduated scale (11) and a lower rod (12), the upper graduated scale (11) and the lower rod (12) are integrally connected, and the upper graduated scale (11) is longer than the lower rod (12).

4. A lathe precision centering aid as claimed in claim 3, wherein: one end of the lower rod (12) far away from the rotating shaft (7) is semicircular.

5. A lathe precision centering aid as claimed in claim 3, wherein: go up scale (11) go up sliding connection and have two slider (4), slider (4) slide along the scale mark direction of last scale (11).

6. A lathe precision centering aid as claimed in claim 5, wherein: the upper graduated scale (11) is provided with a chute (6), and the chute (6) and one end of the upper graduated scale (11) far away from the rotating shaft (7) are not opened; the slider (4) is fixedly connected with a lug (5), the lug (5) is arranged in the sliding groove (6) and is in sliding connection with the sliding groove.

7. The lathe precision centering auxiliary device of claim 6, wherein: the ruler shell (2) further comprises an upper limiting block (22) and a lower limiting block (23), the upper limiting block (22) and the lower limiting block (23) are fixedly connected in the mounting groove (10), the upper limiting block (22) is located on one side, away from the lathe spindle, of the mounting groove (10), the lower limiting block (23) is located on one side, close to the lathe spindle, of the mounting groove (10), the upper limiting block (22) and the lower limiting block (23) are arranged vertically, the height of the upper limiting block (22) is larger than that of the lower limiting block (23), and the height difference between the upper limiting block (22) and the lower limiting block (23) is equal to the width of the ruler (1) in the vertical direction.

8. A lathe precision centering aid as claimed in claim 2, wherein: the base (3) comprises a base body (32) and a reinforcing block (31), one end of the shell (21) is fixedly connected to the base body (32), the reinforcing block (31) is sleeved on the shell (21), and one side, away from the rotating shaft (7), of the reinforcing block (31) is fixedly connected with the base body (32).

9. The lathe precision centering aid of claim 8, wherein: a groove (9) is formed in one side, far away from the reinforcing block (31), of the base (3).

10. A lathe precision centering aid as claimed in claim 9, wherein: bolt holes (8) are formed in the two sides of the base (3) parallel to the ruler shell (2).