阅读说明：本技术 滚珠丝杠滚道法向截面仿形淬火感应器 (Ball screw raceway normal section profiling quenching inductor ) 是由 王建修 田毅 吴蒙 柴彦平 于 2019-09-30 设计创作，主要内容包括：本发明具体涉及一种滚珠丝杠螺旋滚道仿形淬火感应器,包括底座和线圈,底座由极板、铜管和连接座组成,铜管设置在极板上,铜管和极板均与连接座固定连接；线圈由旋转套、左连接铜管、右连接铜管、左短管、右短管和仿形线圈组成,左连接铜管和右连接铜管均与旋转套固定连接,左短管的一端与左连接铜管连通,左短管的另一端与仿形线圈的一端连通,仿形线圈的另一端与右短管的一端连通,右短管的另一端与右连接铜管连通；旋转套套设在连接座上,且旋转套与连接座固定连接。该滚珠丝杠螺旋滚道仿形淬火感应器既能满足硬化层要求,又能保证深度和形状要求,适合不同螺距滚珠丝杠仿形感应淬火,且结构合理,便于使用。(The invention particularly relates to a profiling quenching inductor of a ball screw spiral raceway, which comprises a base and a coil, wherein the base consists of a polar plate, a copper pipe and a connecting seat, the copper pipe is arranged on the polar plate, and the copper pipe and the polar plate are fixedly connected with the connecting seat; the coil consists of a rotary sleeve, a left connecting copper pipe, a right connecting copper pipe, a left short pipe, a right short pipe and a profiling coil, wherein the left connecting copper pipe and the right connecting copper pipe are fixedly connected with the rotary sleeve; the rotating sleeve is sleeved on the connecting seat and is fixedly connected with the connecting seat. The ball screw spiral raceway profiling quenching inductor can meet the requirement of a hardened layer, can guarantee the requirements of depth and shape, is suitable for profiling induction quenching of ball screws with different pitches, and is reasonable in structure and convenient to use.)

1. The utility model provides a ball screw spiral raceway profile modeling quenching inductor, includes base and coil, its characterized in that: the base is composed of a polar plate (1), a copper pipe (2) and a connecting seat (3), the copper pipe (2) is fixed on the polar plate (1), and the connecting seat (3) is fixedly connected with the copper pipe (2) and the polar plate (1);

the coil consists of a rotary sleeve (4), a left connecting copper pipe (5-1), a right connecting copper pipe (5-2), a left short pipe (6-1), a right short pipe (6-2) and a profiling coil (7), wherein the left connecting copper pipe (5-1) and the right connecting copper pipe (5-2) are fixedly connected with the rotary sleeve (4), one end of the left short pipe (6-1) is communicated with the left connecting copper pipe (5-1), the other end of the left short pipe (6-1) is communicated with one end of the profiling coil (7), the other end of the profiling coil (7) is communicated with one end of the right short pipe (6-2), and the other end of the right short pipe (6-2) is communicated with the right connecting copper pipe (5-2);

the rotary sleeve (4) is sleeved on the connecting seat (3), and the rotary sleeve (4) is fixedly connected with the connecting seat (3).

2. The ball screw helical raceway profiling quenching inductor according to claim 1, characterized in that a magnetizer (8) is provided inside the profiling coil (7), and a water spray hole (9) is provided at a lower portion of an outer side of the profiling coil (7).

3. The ball screw helical raceway profiling quenching inductor according to claim 1, characterized in that the profiling coil (7) comprises an upper effective ring, a lower effective ring and a bent pipe, one end of the upper effective ring is communicated with the left short pipe, the other end of the upper effective ring is communicated with one end of the bent pipe, the other end of the bent pipe is communicated with one end of the lower effective ring, and the other end of the lower effective ring is communicated with the right short pipe;

the inside of going up effective circle is provided with magnetizer (8), the outside of effective circle is provided with hole for water spraying (9) down.

4. The ball screw helical raceway profiling quenching inductor according to any of claims 1-3, characterized in that the profiling coil (7) has the same shape as the normal cross section of the workpiece threaded raceway.

5. The profiling quenching inductor for the ball screw spiral raceway according to claim 1, characterized in that the pole plate (1) comprises a left pole plate and a right pole plate which are symmetrical left and right, the left pole plate and the right pole plate are separated by an insulating layer, and the left pole plate and the right pole plate are fixedly connected by a fastening screw (10);

the copper pipe (2) comprises a left copper pipe and a right copper pipe, the left copper pipe is fixed on the left pole plate, and the right copper pipe is fixed on the right pole plate;

the connecting seat (3) comprises a left connecting seat and a right connecting seat which are symmetrical left and right, the left connecting seat and the right connecting seat are separated through an insulating layer, the left connecting seat is fixedly connected with a left copper pipe and a left polar plate, and the right connecting seat is fixedly connected with a right copper pipe and a right polar plate.

6. The profiling quenching inductor for the ball screw spiral raceway according to claim 5, wherein the left connecting seat comprises a left connecting plate and a left connecting column, one side of the left connecting plate is fixedly connected with the left copper pipe and the left polar plate, and the other side of the left connecting plate is fixedly connected with the left connecting column;

the right connecting seat comprises a right connecting plate and a right connecting column, one side of the right connecting plate is fixedly connected with the right copper pipe and the right polar plate, and the other side of the right connecting plate is fixedly connected with the right connecting column.

7. The profiling quenching inductor for the ball screw spiral raceway according to claim 6, characterized in that the rotary sleeve (4) is of an inward concave structure, and the inner wall of the rotary sleeve (4) is of a concave arc shape;

the rotary sleeve (4) comprises a left rotary sleeve and a right rotary sleeve, and the left rotary sleeve and the right rotary sleeve are separated by an insulating layer;

the left rotating sleeve is sleeved on the left connecting column, the right rotating sleeve is sleeved on the right connecting column, the left rotating sleeve and the right rotating sleeve can rotate leftwards or rightwards along the symmetrical line of the polar plate (1) and are fixedly connected through a fastening screw (10).

8. The profiling quenching inductor for the ball screw spiral raceway according to claim 5, wherein the left pole plate is L-shaped, the left copper pipe is fixed on one side of the left pole plate close to the left connecting seat, and the left copper pipe is arranged in a broken line;

the right polar plate is L-shaped, the right copper pipe is fixed on one side, close to the right connecting seat, of the right polar plate, and the right copper pipe is arranged in a folding line mode.

9. The profiling quenching inductor for the ball screw spiral raceway according to claim 1, characterized in that the connecting seat (3) is located at the middle position in the length direction of the pole plate (1).

10. The profiling quenching inductor for the ball screw spiral raceway according to claim 1, characterized in that the left connecting copper pipe (5-1) and the right connecting copper pipe (5-2) are separated by an insulating layer, and the left connecting copper pipe (5-1) and the right connecting copper pipe (5-2) are symmetrically fixed.

Technical Field

The invention belongs to the technical field of heat treatment processing devices, and particularly relates to a ball screw raceway normal section profiling quenching inductor.

Background

The ball screw pair is a core transmission part of a numerical control machine tool, an automatic device and the like, along with the development of the machine tool towards high rigidity, large size and heavy load, the ball screw pair is used as a main transmission part of the ball screw pair, the bearing capacity of the ball screw pair is required to be larger and larger, and the diameter of a screw, the size of a steel ball and the like directly determine the bearing capacity of the ball screw pair. The manufacturing difficulty is increased along with the increase of the diameters of the lead screw and the steel ball, the normal section of the raceway of the ball lead screw is an arc groove, the depth of an effective hardening layer is generally required to be larger than the diameter of the steel ball, the hardness of the thread raceway is more than 58HRC, and the quenching becomes the biggest problem of manufacturing the large lead screw. The traditional quenching mode of the ball screw is to adopt a special quenching wire ring to surround the excircle for medium frequency quenching, which is limited by a processing mode and a quenching power supply, the method can not meet the requirement of the depth of a quenching layer of the large-diameter steel ball (the diameter of the steel ball is larger than phi 12.7) screw, and domestic special quenching equipment suitable for large-diameter and large-ball screw raceways does not exist, thus the large-scale production of domestic large-scale and heavy-load ball screw pairs is severely restricted.

Disclosure of Invention

In order to solve the problem that the prior art can not meet the quenching requirement of a lead screw with a large steel ball diameter, the invention provides a ball screw raceway normal section profiling quenching inductor, which can perform profiling induction quenching on the ball screw raceway part with the large steel ball diameter along the normal section, increase the depth of a lead screw hardening layer and solve the quenching processing problem of large and heavy-load lead screws, and can also be used for quenching processing lead screws with other section shapes by replacing a profiling coil. The technical problem to be solved by the invention is realized by the following technical scheme:

a profiling quenching inductor of a ball screw spiral raceway comprises a base and a coil, wherein the base comprises a polar plate, a copper pipe and a connecting seat, the copper pipe is arranged on the polar plate, and the copper pipe and the polar plate are fixedly connected with the connecting seat;

the coil consists of a rotary sleeve, a left connecting copper pipe, a right connecting copper pipe, a left short pipe, a right short pipe and a profiling coil, wherein the left connecting copper pipe and the right connecting copper pipe are both fixedly connected with the rotary sleeve;

the rotary sleeve is sleeved on the connecting seat and is fixedly connected with the connecting seat.

Furthermore, a magnetizer is arranged inside the profiling coil, and a water spraying hole is arranged at the lower part of the outer side of the profiling coil.

Furthermore, the profiling coil comprises an upper effective ring, a lower effective ring and a bent pipe, wherein one end of the upper effective ring is communicated with the left short pipe, the other end of the upper effective ring is communicated with one end of the bent pipe, the other end of the bent pipe is communicated with one end of the lower effective ring, and the other end of the lower effective ring is communicated with the right short pipe;

the inside of going up effective circle is provided with the magnetizer, the outside of effective circle is provided with the hole for water spraying down.

Further, the shape of the profiling coil is the same as the normal section of the workpiece thread rolling path.

Furthermore, the polar plates comprise a left polar plate and a right polar plate which are symmetrical left and right, the left polar plate and the right polar plate are separated by an insulating layer, and the left polar plate and the right polar plate are fixedly connected through fastening screws;

the copper pipe comprises a left copper pipe and a right copper pipe, the left copper pipe is fixed on the left polar plate, and the right copper pipe is fixed on the right polar plate;

the connecting seat includes bilateral symmetry's left connecting seat and right connecting seat, left side connecting seat and right connecting seat separate through the insulating layer, left side connecting seat and left copper pipe and the equal fixed connection of left polar plate, right side connecting seat and the equal fixed connection of right copper pipe and right polar plate.

Further, the ball screw spiral raceway profiling quenching inductor according to claim 5, wherein the left connecting seat comprises a left connecting plate and a left connecting column, one side of the left connecting plate is fixedly connected with the left copper pipe and the left polar plate, and the other side of the left connecting plate is fixedly connected with the left connecting column;

the right connecting seat comprises a right connecting plate and a right connecting column, one side of the right connecting plate is fixedly connected with the right copper pipe and the right polar plate, and the other side of the right connecting plate is fixedly connected with the right connecting column.

Furthermore, the rotary sleeve is of an inwards concave structure, and the inner wall of the rotary sleeve is in a concave arc shape;

the rotary sleeve comprises a left rotary sleeve and a right rotary sleeve, and the left rotary sleeve and the right rotary sleeve are separated by an insulating layer;

the left rotating sleeve is sleeved on the left connecting column, the right rotating sleeve is sleeved on the right connecting column, the left rotating sleeve and the right rotating sleeve can rotate leftwards or rightwards along the symmetric line of the polar plate and are fixedly connected through the fastening screws.

Furthermore, the left pole plate is L-shaped, the left copper pipe is fixed on one side of the left pole plate close to the left connecting seat, and the left copper pipe is arranged in a broken line manner;

the right polar plate is L-shaped, the right copper pipe is fixed on one side, close to the right connecting seat, of the right polar plate, and the right copper pipe is arranged in a folding line mode.

Further, the connecting seat is located at the middle position of the length direction of the pole plate.

Furthermore, the left connecting copper pipe and the right connecting copper pipe are separated by an insulating layer, and the left connecting copper pipe and the right connecting copper pipe are symmetrically fixed.

The invention has the beneficial effects that:

1. the ball screw spiral raceway profiling quenching inductor comprises a base and a coil, wherein the base comprises a polar plate, a copper pipe and a connecting seat, the coil comprises a rotating sleeve, a left connecting copper pipe, a right connecting copper pipe, a left short pipe, a right short pipe and a profiling coil, the rotating sleeve is fixedly sleeved on the connecting seat, and when the quenching inductor is installed, the gap between the profiling coil of the quenching inductor and each part of an arc of a ball screw thread raceway is the same through adjusting the angle between the coil and the polar plate symmetrical line, so that a uniform hardening layer is obtained;

2. according to the ball screw spiral raceway profiling quenching inductor, through the action among the arranged polar plate, the connecting copper pipe, the connecting base, the rotating sleeve, the profiling coil and the magnetizer, the requirement of a hardened layer can be met, the requirements of depth and shape can be met, the ball screw profiling quenching inductor is suitable for ball screw profiling induction quenching with different screw pitches, and the device is reasonable in structure and convenient to use;

3. the ball screw spiral raceway profiling quenching inductor can change the shapes of the upper effective ring and the lower effective ring of the profiling coil, so that the device can also be used for quenching processing of screw rods with other section shapes.

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

Drawings

Fig. 1 is a schematic structural diagram of a base in this embodiment.

Fig. 2 is a schematic structural view of the coil of the present embodiment.

Fig. 3 is an enlarged view a of the copying coil of the present embodiment.

Fig. 4 is a schematic structural view of the ball screw helical raceway profiling quenching inductor of the present embodiment.

FIG. 5 is a sectional view A-A of the base and coil assembly of this embodiment.

In the figure: 1. a polar plate; 2. a copper pipe; 3. a connecting seat; 4. the rotary sleeve, 5-1 and the left connecting copper pipe are arranged; 5-2, connecting a copper pipe on the right; 6-1, a left short pipe; 6-2, a right short pipe; 7. a profiling coil; 8. a magnetizer; 9. a water spray hole; 10. and (5) fastening the screw.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.

In the description of the present embodiment, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present embodiment.

In the present embodiment, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present embodiment can be understood by those of ordinary skill in the art according to specific situations.

In order to solve the problem that the prior art cannot meet the quenching requirement of a large-steel-ball-diameter lead screw, the embodiment provides a profiling quenching inductor for the normal section of a ball screw raceway, referring to fig. 1-5, the device belongs to an induction quenching device for quenching shaft parts, and particularly relates to a profiling induction quenching device for the normal section of a simulated ball screw raceway part, which is a special quenching device for quenching ball screws with different lead screw diameters, different steel ball diameters and different lead angles.

Referring to fig. 1-4, the profiling quenching inductor for the ball screw spiral raceway of the present embodiment includes a base and a coil, the base is composed of a polar plate 1, a copper pipe 2 and a connecting seat 3, the copper pipe 2 is fixed on the polar plate 1, and the connecting seat 3 is fixedly connected with the copper pipe 2 and the polar plate 1. The polar plate 1 comprises a left polar plate and a right polar plate which are symmetrical left and right, the left polar plate and the right polar plate are separated by an insulating layer, and the left polar plate and the right polar plate are fixedly connected through a fastening screw 10. The left polar plate and the right polar plate of this embodiment are all through fastening screw fixed connection, and fixed durable is firm in upper portion and lower part.

The copper tube 2 comprises a left copper tube and a right copper tube, wherein the left copper tube is fixed on the left pole plate, and the right copper tube is fixed on the right pole plate. This connecting seat 3 includes bilateral symmetry's left connecting seat and right connecting seat, and left connecting seat and right connecting seat separate through the insulating layer, and left connecting seat and left copper pipe and the equal fixed connection of left polar plate, right connecting seat and the equal fixed connection of right copper pipe and right polar plate. The copper pipe, the polar plate and the connecting seat are fixed through welding.

The left electrode plate is L-shaped, the left copper pipe is fixed on one side of the left electrode plate close to the left connecting seat, and the left copper pipe is arranged in a broken line manner; the right polar plate is L-shaped, the right copper pipe is fixed on one side of the right polar plate close to the right connecting seat, and the right copper pipe is arranged in a folding line. During the use, the cooling water cools off polar plate and connecting seat through the copper pipe, and left side copper pipe and right copper pipe are the broken line and arrange, can improve the cooling efficiency of polar plate and connecting seat. The connecting seat 3 of the embodiment is located at the middle position of the length direction of the pole plate 1, and contributes to the stability and rationality of the whole structure.

The left connecting seat of this embodiment includes left connecting plate and left spliced pole, left connecting plate one side and left copper pipe and the equal fixed connection of left polar plate, the opposite side and the left spliced pole fixed connection of left connecting plate. The right connecting seat comprises a right connecting plate and a right connecting column, one side of the right connecting plate is fixedly connected with the right copper pipe and the right polar plate, and the other side of the right connecting plate is fixedly connected with the right connecting column. The left connecting plate and the left connecting column of this embodiment, right connecting plate and right connecting column integrated into one piece, it is durable.

The coil of the embodiment comprises a rotary sleeve 4, a left connecting copper pipe 5-1, a right connecting copper pipe 5-2, a left short pipe 6-1, a right short pipe 6-2 and a profiling coil 7, wherein the left connecting copper pipe 5-1 and the right connecting copper pipe 5-2 are fixedly connected with the rotary sleeve 4, one end of the left short pipe 6-1 is communicated with the left connecting copper pipe 5-1, the other end of the left short pipe 6-1 is communicated with one end of the profiling coil 7, the other end of the profiling coil 7 is communicated with one end of the right short pipe 6-2, and the other end of the right short pipe 6-2 is communicated with the right connecting copper pipe 5-2. The inside of the profiling coil 7 is provided with a magnetizer 8, and the lower part of the outer side of the profiling coil 7 is provided with a water spraying hole 9. The left connecting copper pipe 5-1 and the right connecting copper pipe 5-2 are separated by an insulating layer, and the left connecting copper pipe 5-1 and the right connecting copper pipe 5-2 are symmetrically fixed. The insulating layer of the embodiment can be an insulating plate, insulating glue or other insulating materials.

The rotating sleeve 4 is sleeved on the connecting seat 3, and the rotating sleeve 4 is fixedly connected with the connecting seat 3. The rotating sleeve of the embodiment is fixed on the connecting seat through a fastening screw. When the quenching device is installed, the gaps between the profiling coil of the inductor and the arc parts of the ball screw thread raceway of the ball screw are the same by adjusting the angle between the coil and the symmetric line of the polar plate, so as to ensure that a uniform hardening layer is obtained, referring to fig. 5, the coil of the embodiment can rotate leftwards or rightwards by 0-60 degrees along the symmetric line of the polar plate, and then is fixedly connected through a fastening screw after rotating.

The shape of the profiling coil 7 is the same as the normal section of the threaded raceway of the workpiece. The profiling coil 7 of the embodiment comprises an upper effective ring, a lower effective ring and a bent pipe, wherein one end of the upper effective ring is communicated with the left short pipe, the other end of the upper effective ring is communicated with one end of the bent pipe, the other end of the bent pipe is communicated with one end of the lower effective ring, and the other end of the lower effective ring is communicated with the right short pipe. The inside of going up effective circle is provided with magnetizer 8, and the outside of effective circle is provided with hole for water spraying 9 down. The magnetizer of this embodiment is embedded to be set up on last effective circle, and the magnetizer is towards the work piece direction. The ball screw spiral raceway profiling quenching inductor changes the direction of a magnetic field through a magnetizer, improves the heating efficiency and realizes the induction heating of the surface of a part; and cooling the heated surface of the part by cooling water through the water spray holes to realize part quenching.

When the quenching device is used, cooling water enters the left short pipe through the left connecting copper pipe, enters the upper effective ring, enters the bent pipe, enters the lower effective ring, and cools the heated part of the ball screw thread raceway arc of the ball screw through the water spray hole on the outer side of the lower portion of the lower effective ring during quenching to finish quenching. Therefore, the device can meet the requirements of a hardened layer, can ensure the requirements of depth and shape, is suitable for induction quenching of ball screws with different pitches, and is reasonable in structure and convenient to use.

The shape of the upper effective ring and the lower effective ring is the same as the normal section of the threaded roller path of the workpiece, the embodiment is arc-shaped, the radius of the arc is R6.35-R20, when in use, the upper effective ring and the lower effective ring with different shapes can be replaced according to the shape of the workpiece, and the screw quenching device can be used for quenching processing of lead screws with other section shapes.

The rotating sleeve 4 of the present embodiment is a concave structure, and the inner wall of the rotating sleeve 4 is a concave arc shape. RotateThe sleeve 4 comprises a left rotating sleeve and a right rotating sleeve which are separated by an insulating layer. The left rotating sleeve is sleeved on the left connecting column, the right rotating sleeve is sleeved on the right connecting column, and the left rotating sleeve and the right rotating sleeve can rotate leftwards or rightwards along the symmetry line of the polar plate 1 and are fixedly connected through a fastening screw 10. In the embodiment, the upper part and the lower part of the left rotating sleeve and the right rotating sleeve are respectively fixedly connected through the fastening screws, the fixation is firm, the rotating sleeve can rotate 0-60 degrees leftwards or rightwards along the symmetry line of the polar plate, and the rotating sleeve is suitable for different helix angles (4-52 degrees) and different excircle diametersThe ball screw has different circular arcs (R6.35-R20) of the ball tracks, and is subjected to profile induction quenching.

The left connecting copper pipe of the embodiment is welded and fixed on the left rotating sleeve, and the right connecting copper pipe is welded and fixed on the right rotating sleeve. The one end and the left of left nozzle stub are connected copper pipe welded fastening, and the other end and the one end welded fastening of last effective circle of left nozzle stub go up the other end of effective circle and the one end welded fastening of return bend, the other end and the one end welded fastening of effective circle down of return bend, the other end and the one end welded fastening of right nozzle stub of effective circle down, the other end and the right copper pipe welded fastening of being connected of right nozzle stub.

The ball screw spiral raceway profile modeling quenching inductor of this embodiment through the polar plate that sets up, connect the effect between copper pipe, connecting seat, swivel sleeve, profile modeling coil, the magnetizer for can satisfy the sclerosis layer requirement, can guarantee degree of depth and shape requirement again, be fit for different pitch ball screw profile modeling induction hardening, the device is rational in infrastructure, convenient to use. The special induction hardening device is suitable for large and heavy-load ball screw roller path normal section profiling.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.