Balanced supporting tailstock of machine tool

Abstract

The utility model provides a machine tool balance supporting tailstock which comprises a movable clamping table in a T shape, and first guide rails are arranged on the left side and the right side of the top of the movable clamping table. The working plate is transversely arranged over the movable clamping table, movable grooves are symmetrically formed in the bottom of the working plate, and the working plate sleeves the top of the first guide rail through the movable grooves; the bottom of the working plate limiting module is clamped to the top of the movable clamping table, and the top of the working plate limiting module is connected with the movable clamping table in a threaded fit mode. The fixed rod containing groove is connected to the top end of the working plate through bolts. The supporting protection modules are arranged on the left side and the right side of the top of the working plate, the front side and the rear side of the bottom of each supporting protection module are clamped in the axis positioning module, when the machine tool balance supporting tailstock machines large-specification shaft parts on a lathe, the sides, away from a chuck, of the parts are supported, the height of the sides, away from the chuck, of the parts can be adjusted, and the two ends of the parts are coaxial; vibration during part machining is reduced, and machining precision and machining efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of lathe improvement, in particular to the technical field of a positioning and supporting tailstock for a workpiece on a machine tool, and specifically relates to a balanced supporting tailstock for a machine tool. Background Art

[0002] When the existing lathe needs to process the outer wall of large long shaft parts, because the length of this kind of part is greater than the lathe processing stroke, the pin-type tailstock on the lathe side away from the chuck needs to be removed before loading. When loading, one side of the shaft part is clamped by the chuck on the lathe, and a positioning block needs to be set on the other side to prevent the angle of the part from changing during processing, so that the two ends of the processed shaft parts are out of alignment, and the support pad raises the part away from the chuck side so that the other side of the part is at the same height as the processing side of the chuck to prevent the part from being directly broken when the chuck rotates the part. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a balanced support tailstock for a machine tool, so as to solve the difficulties of the prior art.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a machine tool balance support tailstock, comprising:

[0005] A mobile card platform 1, the mobile card platform 1 is T-shaped, and a first guide rail 11 is provided on the left and right sides of the top of the mobile card platform 1;

[0006] A working plate 2, the working plate 2 is horizontally arranged just above the mobile card platform 1, and a moving groove is symmetrically opened at the bottom of the working plate 2, and the working plate 2 is sleeved on the top of the No. 1 guide rail 11 through the moving groove;

[0007] A working plate limiting module 3, wherein the bottom of the working plate limiting module 3 is clamped on the top of the mobile card platform 1, and the top of the working plate limiting module 3 is connected to the mobile card platform 1 through threaded engagement;

[0008] Axis center positioning module 4, the axis center positioning module 4 is arranged on the top of the working plate 2 through bolt connection;

[0009] The supporting and protecting module 5 is arranged on the left and right sides of the top of the working plate 2 , and the front and rear sides of the bottom of the supporting and protecting module 5 are clamped in the axis positioning module 4 .

[0010] According to the preferred solution, the working plate limiting module 3 includes:

[0011] A pressing plate 31 is provided on the left and right sides of the top of the mobile card platform 1. A waist hole 32 is provided in the middle of the pressing plate 31. A No. 1 locking screw 33 is inserted into the waist hole 32. The No. 1 locking screw 33 is a self-tapping screw. The top of the No. 1 locking screw 33 is vertically drilled into the bottom of the working plate 2.

[0012] A positioning support screw 34, the bottom of which is passed through the side of the pressing plate 31 away from the movable card table 1, and the top of which is against the bottom end of the pressing plate 31;

[0013] A pair of No. 1 limiting nuts 35 are provided, and the pair of No. 1 limiting nuts 35 are spaced apart and sleeved on the No. 1 locking screw 33 , and the tops of the pair of No. 1 limiting nuts 35 respectively abut against the tops of the pressing plate 31 and the working plate 2 .

[0014] According to the preferred solution, the axis positioning module 4 includes:

[0015] A second guide rail 41, which is disposed at the front and rear sides of the top of the working plate 2, and an inverted T-shaped groove 42 is provided in the middle of the second guide rail 41;

[0016] A screw fixing block 43, wherein the screw fixing block 43 is connected by bolts and is arranged on the left and right sides of the center of the top of the working plate 2;

[0017] A pair of T-shaped screw rods 44 are provided, and the pair of T-shaped screw rods 44 are respectively fixed in the middle of the screw rod fixing block 43, and one side of the T-shaped screw rod 44 extends straight toward the center point of the working plate 2;

[0018] The nut seat 45 is sleeved on a side of the T-shaped screw rod 44 away from the screw rod fixing block 43 .

[0019] According to a preferred embodiment, the top groove diameter of the inverted T-shaped groove 42 is smaller than the bottom groove diameter.

[0020] According to a preferred embodiment, the pair of T-shaped screw rods 44 do not contact each other.

[0021] According to the preferred embodiment, the support and protection module 5 includes:

[0022] An L-shaped support block 51, which is symmetrically placed on the left and right sides of the top of the working plate 2, and the center of the bottom of the L-shaped support block 51 is connected to the nut seat 45 by bolts;

[0023] A positioning hole 52 is provided around the bottom of the L-shaped support block 51. A second locking screw 53 is inserted into the positioning hole 52. The bottom of the second locking screw 53 passes through the L-shaped support block 51 and enters the inverted T-shaped groove 42;

[0024] A positioning plate 54, wherein the positioning plate 54 is sleeved on the bottom of the second locking screw 53 through threaded cooperation, and the positioning plate 54 is clamped on the bottom of the inverted T-shaped groove 42;

[0025] A second limiting nut 55, wherein the second limiting nut 55 is sleeved on the top of the second locking screw 53, and the bottom of the second locking screw 53 contacts the bottom of the L-shaped support block 51;

[0026] A pair of right-angled trapezoidal plates 56 are provided. The pair of right-angled trapezoidal plates 56 are symmetrically arranged on the side of the L-shaped support block 51 away from the screw fixing block 43 by welding. A plurality of fixed rod placement grooves 57 are evenly spaced on the inclined surface of the right-angled trapezoidal plate 56 away from the screw fixing block 43;

[0027] The roller 58 is arranged between a pair of right-angled trapezoidal plates 56. Bearings 59 are arranged on the left and right sides of the roller 58. The outer ring of the bearing 59 is interference fit with the inner wall of the roller 58. A fixed rod 510 is passed through the middle of the bearing 59. One side of the fixed rod 510 is clamped at the bottom of the fixed rod placement groove 57.

[0028] According to a preferred embodiment, the top of the fixed rod placement groove 57 is an inclined square groove, and the bottom is an arc groove.

[0029] The utility model adopts a mobile clamping table, a working plate, a working plate limit module, an axis positioning module and a support protection module. One side of the part to be processed is clamped by the chuck provided on the lathe, and the other side of the part is clamped on the roller in the support protection module. It should be noted that before clamping, the spacing between the L-shaped support blocks in the support protection module 5 needs to be changed by adjusting the axis positioning module according to the outer diameters of the two parts, and the fixed rod is clamped into the fixed rod placement groove of the appropriate height. After the initial placement and installation of the parts are completed, a magnetic meter holder dial indicator needs to be placed on the side of the lathe close to the mobile clamping table. The dial indicator One side contacts the surface of the part, then start the lathe to adjust the chuck at an extremely low speed, such as 1-3rpm to control the chuck to drive the part to rotate, observe the dial indicator value, and rotate the T-screw according to the value jump to adjust the spacing between the L-shaped support blocks. After the adjustment, tighten the No. 2 limit nut to limit the L-shaped support block. When the machine tool balances the tailstock to process larger shaft parts on the lathe, the part is supported away from the chuck side, and the height of the part away from the chuck side can be adjusted to make the two ends of the part coaxial, reduce the vibration during part processing, and improve the processing accuracy and efficiency.

[0030] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1The display is a three-dimensional structural schematic diagram of the utility model;

[0032] Figure 2 Shown is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0033] Figure 3 Shown is an enlarged schematic diagram of the three-dimensional structure of the working plate limit module in the present utility model;

[0034] Figure 4 Shown is an enlarged schematic diagram of the three-dimensional structure of the axis positioning module in the present utility model;

[0035] Figure 5 The display is an enlarged schematic diagram of the three-dimensional structure of the support and protection module in the present utility model;

[0036] Figure 6 The display is an enlarged schematic diagram of the three-dimensional structure of the roller in the utility model;

[0037] Description of symbols

[0038] 1. Mobile card table; 11. Guide rail No. 1;

[0039] 2. Work board;

[0040] 3. Working plate limit module; 31. Pressing plate; 32. Waist hole; 33. No. 1 locking screw; 34. Positioning support screw; 35. No. 1 limit nut;

[0041] 4. Axis positioning module; 41. No. 2 guide rail; 42. Inverted T-shaped groove; 43. Screw fixing block; 44. T-shaped screw; 45. Nut seat;

[0042] 5. Support and protection module; 51. L-shaped support block; 52. Positioning hole; 53. No. 2 locking screw; 54. Positioning plate; 55. No. 2 limiting nut; 56. Right-angle trapezoidal plate; 57. Fixed rod placement groove; 58. Support roller; 59. Bearing; 510. Fixed rod; DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0045] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0046] The utility model proposes a machine tool balanced support tailstock, which is used in the process of improving a lathe when processing large shafts. The utility model does not limit the type of lathe to be improved, but the structure of the movable clamping table 1, the working plate 2, the working plate limit module 3, the axis positioning module 4 and the support protection module 5 is particularly suitable for the improvement of the lathe tailstock.

[0047] In general, the machine tool balance support tailstock proposed by the utility model mainly includes: a mobile card table 1, a working plate 2, a working plate limit module 3, an axis positioning module 4 and a support protection module 5, among which, you can refer to Figure 1 , which shows the arrangement relationship of the mobile card platform 1, the working plate 2, the working plate limiting module 3, the axis positioning module 4 and the supporting protection module 5.

[0048] The machine tool balancing support tailstock proposed by the utility model needs to replace the ejector tailstock on the conventional lathe when it is used, and is used to process the left and right sides of shaft parts with larger specifications, such as the bosses used for connecting or positioning the left and right sides of the rollers on medium and large cold rolling mills. When used specifically, one side of the part to be processed is clamped by the chuck provided on the lathe, and the other side of the part is clamped on the roller 58 in the support and protection module 5. It should be noted that before clamping, the spacing between the L-shaped support blocks 51 in the support and protection module 5 needs to be changed by adjusting the axis positioning module 4 according to the outer diameters of the two parts, and the fixed rod 510 is clamped into the fixed rod placement groove 57 of the appropriate height. After the initial placement and installation of the parts are completed, it is necessary to A dial indicator with a magnetic base is placed on the side of the lathe close to the movable chuck 1, with one side of the dial indicator in contact with the surface of the part. The lathe is then started to adjust the chuck at an extremely low speed, such as 1-3rpm, to control the chuck to drive the part to rotate, and the dial indicator value is observed. The T-type screw rod 44 is rotated according to the value jump to adjust the spacing between the L-shaped support blocks 51. After the adjustment is completed, the No. 2 limit nut 55 is tightened to limit the L-shaped support block 51. When the machine tool balance supports the tailstock on the lathe to process larger shaft parts, the part is supported away from the chuck side, and the height of the part away from the chuck side can be adjusted to make the two ends of the part coaxial, reduce the vibration during part processing, and improve the processing accuracy and efficiency.

[0049] The above-mentioned mobile card platform 1 is T-shaped, and a No. 1 guide rail 11 is arranged on the left and right sides of the top of the mobile card platform 1. The working plate 2 is horizontally arranged just above the mobile card platform 1, and a moving groove is symmetrically opened at the bottom of the working plate 2. The working plate 2 is mounted on the top of the No. 1 guide rail 11 through the moving groove.

[0050] The bottom of the working plate limit module 3 is clamped on the top of the mobile card platform 1, and the top of the working plate limit module 3 is connected to the mobile card platform 1 through threaded cooperation. The working plate limit module 3 includes: a pressure plate 31, a No. 1 locking screw 33, a positioning support screw 34 and a No. 1 limiting nut 35, wherein the pressure plate 31 is clamped on the left and right sides of the top of the mobile card platform 1, and a waist hole 32 is opened in the middle of the pressure plate 31. A No. 1 locking screw 33 is inserted into the waist hole 32. The No. 1 locking screw 33 is a self-tapping screw. The top of the No. 1 locking screw 33 is vertically drilled into the bottom of the working plate 2 to position The bottom of the support screw 34 is passed through the side of the pressure plate 31 away from the movable card platform 1, and the top of the positioning support screw 34 is against the bottom end of the pressure plate 31. A pair of No. 1 limiting nuts 35 are provided. The pair of No. 1 limiting nuts 35 are spaced apart and sleeved on the No. 1 locking screw 33. The tops of the pair of No. 1 limiting nuts 35 respectively press against the top of the pressure plate 31 and the working plate 2. The working plate 2 moves back and forth along the No. 1 guide rail 11 through the moving groove. By tightening the No. 1 limiting nut 35, the gap between the pressure plate 31 and the working plate 2 is reduced, and the pressure plate 31 is clamped to the movable card platform 1 so that the working plate 2 is limited.

[0051] The above-mentioned axis positioning module 4 is arranged at the top of the working plate 2 by bolt connection, and the axis positioning module 4 includes: a No. 2 guide rail 41, a screw fixing block 43, a T-shaped screw rod 44 and a nut seat 45, wherein the No. 2 guide rail 41 is respectively arranged on the front and rear sides of the top of the working plate 2, and an inverted T-shaped groove 42 is opened in the middle of the No. 2 guide rail 41. The top groove diameter of the inverted T-shaped groove 42 is smaller than the bottom groove diameter. The screw fixing block 43 is connected by bolts on the left and right sides of the center of the top of the working plate 2. A pair of T-shaped screw rods 44 are provided, and a pair of T-shaped screw rods 44 are respectively clamped in the middle of the screw fixing block 43. One side of the T-shaped screw rod 44 extends straight toward the center point of the working plate 2, and a nut seat 45 is sleeved on the side of the T-shaped screw rod 44 away from the screw fixing block 43. The nut seat 45 is moved forward and backward along the T-shaped screw rod 44 by rotating the T-shaped screw rod 44.

[0052] The above-mentioned support and protection module 5 is arranged on the left and right sides of the top of the working plate 2, and the front and rear sides of the bottom of the support and protection module 5 are clamped in the axis positioning module 4. The support and protection module 5 includes: an L-shaped support block 51, a positioning hole 52, a positioning plate 54, a second limiting nut 55, a right-angle trapezoidal plate 56 and a roller 58, wherein the L-shaped support block 51 is symmetrically placed on the left and right sides of the top of the working plate 2, and the center of the bottom of the L-shaped support block 51 is connected to the nut seat 45 by a bolt, and a positioning hole 52 is provided around the bottom of the L-shaped support block 51. A second locking screw 53 is penetrated in the positioning hole 52, and the bottom of the second locking screw 53 passes through the L-shaped support block 51 and enters the inverted T-shaped groove 42. The positioning plate 54 is set at the bottom of the second locking screw 53 through a threaded fitting sleeve. The positioning plate 54 is clamped at the bottom of the inverted T-shaped groove 42, and a No. 2 limiting nut 55 is sleeved on the top of the No. 2 locking screw 53. The bottom of the No. 2 locking screw 53 contacts the bottom of the L-shaped support block 51. A pair of right-angled trapezoidal plates 56 are provided. The pair of right-angled trapezoidal plates 56 are symmetrically arranged on the side of the L-shaped support block 51 away from the screw fixing block 43 through welding. A number of fixed rod placement grooves 57 are evenly spaced on the inclined surface of the side of the right-angled trapezoidal plate 56 away from the screw fixing block 43. A roller 58 is arranged between the pair of right-angled trapezoidal plates 56. Bearings 59 are arranged on the left and right sides of the roller 58. The outer ring of the bearing 59 is interference fit with the inner wall of the roller 58. A fixed rod 510 is passed through the center of the bearing 59, and one side of the fixed rod 510 is clamped at the bottom of the fixed rod placement groove 57.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A machine tool balance support tailstock, characterized in that: include: A mobile card platform (1), the mobile card platform (1) is T-shaped, and a first guide rail (11) is provided on the left and right sides of the top of the mobile card platform (1); A working plate (2), the working plate (2) being arranged horizontally just above the movable card platform (1), the bottom of the working plate (2) being symmetrically provided with movable grooves, the working plate (2) being sleeved on the top of the first guide rail (11) through the movable grooves; A working plate limiting module (3), the bottom of the working plate limiting module (3) is clamped on the top of the mobile card platform (1), and the top of the working plate limiting module (3) is connected to the mobile card platform (1) through threaded engagement; An axis positioning module (4), wherein the axis positioning module (4) is arranged on the top of the working plate (2) by means of bolt connection; A support protection module (5) is arranged on the left and right sides of the top of the working plate (2), and the front and rear sides of the bottom of the support protection module (5) are clamped in the axis positioning module (4).

2. The machine tool balance support tailstock according to claim 1, characterized in that: The working plate limiting module (3) comprises: A pressing plate (31), the pressing plate (31) is clamped on the left and right sides of the top of the mobile card platform (1), a waist hole (32) is opened in the middle of the pressing plate (31), a No. 1 locking screw (33) is inserted into the waist hole (32), the No. 1 locking screw (33) is a self-tapping screw, and the top of the No. 1 locking screw (33) is vertically drilled into the bottom of the working plate (2); A positioning support screw (34), wherein the bottom of the positioning support screw (34) is passed through a side of the pressing plate (31) away from the movable card table (1), and the top of the positioning support screw (34) abuts against the bottom end of the pressing plate (31); A No. 1 limiting nut (35), wherein a pair of the No. 1 limiting nuts (35) are provided, wherein the pair of the No. 1 limiting nuts (35) are spaced apart and sleeved on the No. 1 locking screw (33), and the tops of the pair of the No. 1 limiting nuts (35) respectively abut against the tops of the pressing plate (31) and the working plate (2).

3. The machine tool balance support tailstock according to claim 2, characterized in that: The axis positioning module (4) comprises: A second guide rail (41), the second guide rail (41) being respectively arranged at the front and rear sides of the top of the working plate (2), and an inverted T-shaped groove (42) is provided in the middle of the second guide rail (41); A screw rod fixing block (43), wherein the screw rod fixing block (43) is arranged on the left and right sides of the center of the top end of the working plate (2) through bolt connection; A pair of T-shaped screw rods (44) are provided, and the pair of T-shaped screw rods (44) are respectively fixed in the middle of the screw rod fixing block (43), and one side of the T-shaped screw rod (44) extends straight toward the center point of the working plate (2); A nut seat (45) is sleeved on a side of the T-shaped screw rod (44) away from the screw rod fixing block (43).

4. The machine tool balance support tailstock according to claim 3, characterized in that: The support and protection module (5) comprises: An L-shaped support block (51), the L-shaped support block (51) being symmetrically placed on the left and right sides of the top of the working plate (2), and the center of the bottom of the L-shaped support block (51) being connected to the nut seat (45) by bolts; A positioning hole (52), the positioning hole (52) is formed around the bottom of the L-shaped support block (51), a second locking screw (53) is inserted into the positioning hole (52), and the bottom of the second locking screw (53) passes through the L-shaped support block (51) and enters the inverted T-shaped groove (42); A positioning plate (54), wherein the positioning plate (54) is sleeved on the bottom of the second locking screw (53) through threaded fitting, and the positioning plate (54) is clamped on the bottom of the inverted T-shaped groove (42); A No. 2 limiting nut (55), wherein the No. 2 limiting nut (55) is sleeved on the top of the No. 2 locking screw (53), and the bottom of the No. 2 locking screw (53) contacts the bottom of the L-shaped support block (51); A right-angled trapezoidal plate (56), wherein a pair of the right-angled trapezoidal plates (56) are provided, and the pair of the right-angled trapezoidal plates (56) are symmetrically arranged on a side of the L-shaped support block (51) away from the screw rod fixing block (43) by welding, and a plurality of fixed rod placement grooves (57) are evenly spaced on the inclined surface of the side of the right-angled trapezoidal plate (56) away from the screw rod fixing block (43); A roller (58), the roller (58) is arranged between a pair of right-angle trapezoidal plates (56), bearings (59) are arranged on the left and right sides of the roller (58), the outer ring of the bearing (59) is interference-fitted with the inner wall of the roller (58), a fixed rod (510) is passed through the middle of the bearing (59), and one side of the fixed rod (510) is clamped at the bottom of the fixed rod placement groove (57).

Images