Internal thread grinding equipment for long-cylinder parts

Abstract

The utility model discloses internal thread grinding equipment for long-cylinder parts, which comprises a base and a workpiece spindle, a driving part is arranged below the workpiece spindle, and the driving part can drive the workpiece spindle to reciprocate along the X-axis direction. A machining part capable of reciprocating in the Z1-axis direction and a jacking device capable of reciprocating in the Z2-axis direction are arranged at the two ends of the base respectively, the machining part comprises a grinding wheel spindle and a grinding rod arranged at the output end of the grinding wheel spindle, the grinding rod is sleeved with a grinding wheel, and the jacking device comprises a tailstock and a tip which is arranged perpendicular to the tailstock and used for jacking the grinding rod. The grinding wheel spindle can drive the grinding rod and the grinding wheel to move in the Z1-axis direction to penetrate through a workpiece to be ground, the tailstock and the tip move to the other end of the grinding rod in the Z2-axis direction and abut against the workpiece, and therefore the rigidity of the grinding rod is improved; therefore, high-precision and high-stability internal thread machining of the workpiece can be achieved through interpolation. The internal thread machining device belongs to the technical field of grinding machining.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding processing, and more specifically relates to an internal thread grinding device for long cylindrical parts. Background Art

[0002] Machine tools are the mother of all kinds of high-precision and high-efficiency machinery. With the development of various high-end motion machinery, including IC equipment, feeding mechanisms of precision instruments and high-end CNC machine tools towards high speed, high precision and high reliability, screw rods and nuts have become key components. And with the continuous development and changes of various market demands, there are more and more styles of threaded components such as ball screws and worms and internal threaded components such as nuts and modules.

[0003] The existing general-purpose thread grinder machine tool has a grinding rod installed on the grinding wheel spindle, and the grinding wheel is installed on the head end of the grinding rod. The grinding wheel extends into the inner hole of the part to grind the internal thread of the part. However, when clamping slender, thin-walled parts or long parts, one end of the part is easily deformed. In addition, since the grinding wheel grinding rod is relatively long and has poor rigidity, the grinding accuracy is greatly affected, and some parts can basically not be precisely ground. Summary of the invention

[0004] The main purpose of the utility model is to provide an internal thread grinding device for long cylindrical parts, which can ensure high-precision and high-stability internal thread processing of slender parts.

[0005] In order to achieve the above object, the technical solution of the utility model is:

[0006] A kind of internal thread grinding equipment for long cylindrical parts, comprising a base and a workpiece spindle for mounting a workpiece for processing, which is arranged on the upper end surface of the base; a driving part is arranged below the workpiece spindle, and the driving part can drive the workpiece spindle to reciprocate along the X-axis direction; two ends of the base are respectively provided with a processing part that can reciprocate along the Z1-axis direction and a clamping device that can reciprocate along the Z2-axis direction; the processing part comprises a grinding wheel spindle and a grinding rod arranged at the output end of the grinding wheel spindle, a grinding wheel is sleeved on the grinding rod, the clamping device comprises a tailstock and a top point for clamping the grinding rod, which is arranged perpendicular to the tailstock; the grinding rod can pass through the workpiece so that the grinding wheel can perform internal thread processing under the drive of the grinding wheel spindle.

[0007] In a specific embodiment of the utility model, the driving part includes a first slide arranged along the X-axis and a first driving device arranged at one end of the first slide, a first slide plate is provided at the output end of the first driving device, the first slide plate is slidably connected to the first slide, and the workpiece spindle is arranged perpendicular to the first slide plate.

[0008] In a specific embodiment of the utility model, a through hole is provided at the center of the workpiece spindle for the workpiece to pass through, and the top and the grinding rod are respectively arranged corresponding to the through hole.

[0009] In a specific embodiment of the utility model, the upper end surface of the first slide plate is further provided with a grinding wheel dresser, and the grinding wheel dresser is located between the workpiece spindle and the first driving device.

[0010] In a specific embodiment of the present invention, a turntable is provided between the workpiece spindle and the first slide plate.

[0011] In a specific embodiment of the utility model, the processing part also includes a second slide arranged along the Z1 axis and a second slide plate slidably connected to the second slide plate, and the grinding wheel spindle is arranged perpendicular to the upper end surface of the second slide plate.

[0012] In a specific embodiment of the utility model, a plurality of first mounting holes for adjusting the mounting position of the grinding wheel spindle are arranged at intervals on the second slide plate.

[0013] In a specific embodiment of the utility model, the tightening device also includes a third slide located between the base and the tail stock and a third slide plate slidably connected to the third slide, and the third slide is arranged along the Z2 axis so that the tail stock and the third slide plate are detachably connected.

[0014] In a specific embodiment of the utility model, a plurality of second mounting holes capable of adjusting the mounting position of the tail stock are arranged at intervals on the third slide plate.

[0015] In a specific embodiment of the present invention, the tip is conical.

[0016] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0017] The utility model arranges a workpiece spindle on the upper end surface of a base for mounting a workpiece for processing, arranges a processing portion and a clamping device at both ends of the base respectively, and arranges a driving portion below the workpiece spindle, so that during the grinding process, the grinding wheel spindle can drive the grinding rod and the grinding wheel to move along the Z1 axis direction through the workpiece to be ground, and then moves the tailstock and the center along the Z2 axis direction to the other end of the grinding rod and clamps the workpiece, thereby improving the rigidity of the grinding rod, and at the same time, the workpiece spindle is moved along the X axis direction through the driving portion, so that high-precision and high-stability internal thread processing of the workpiece can be achieved through interpolation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 It is an overall structural diagram of an embodiment of the utility model;

[0020] Figure 2 It is an enlarged view of the workpiece spindle portion of an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0026] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0027] Reference Figure 1 to Figure 2As shown, an internal thread grinding device for long cylindrical parts includes a base 1, a workpiece spindle 2 for clamping a grinding workpiece arranged on the upper end surface of the base 1, a driving part 3 is provided below the workpiece spindle 2, a processing part 4 that can reciprocate along the Z1 axis direction and a clamping device 5 that can reciprocate along the Z2 axis direction are respectively arranged at both ends of the base 1, and the driving part 3 can drive the workpiece spindle 2 to reciprocate along the X axis direction.

[0028] In one embodiment of the utility model, the processing part 4 includes a grinding wheel spindle 41, a grinding rod 42 arranged at the output end of the grinding wheel spindle 41, a second slide 43 arranged along the Z1 axis, and a second slide 44 slidably connected to the second slide 43, wherein the grinding wheel spindle 41 is arranged perpendicular to the upper end surface of the second slide 44, and the grinding rod 42 is sleeved with a grinding wheel for grinding processing.

[0029] In one embodiment of the utility model, the second slide plate 44 is detachably connected to the grinding wheel spindle 41 and can be adjusted to a corresponding position according to a specific processing position. A plurality of first mounting holes 441 for adjusting the mounting position of the grinding wheel spindle 41 are provided at intervals on the second slide plate 44 .

[0030] In one embodiment of the utility model, the clamping device 5 includes a tailstock 51, a top point 52 arranged perpendicular to the tailstock 51 for clamping the grinding rod 42, a third slide 53 located between the base 1 and the tailstock 51, and a third slide 54 slidably connected to the third slide 53, wherein the third slide 53 is arranged along the Z2 axis, and the top point 52 is conical, which can improve the rigidity of the grinding rod 42 when clamping the workpiece, and the grinding rod 42 can pass through the workpiece so that the grinding wheel can perform internal thread processing driven by the grinding wheel spindle 41.

[0031] In one embodiment of the present invention, the tailstock 51 and the third slide plate 54 are detachably connected, so the corresponding position can be adjusted according to the specific processing position, and a plurality of second mounting holes 541 for adjusting the mounting position of the tailstock 51 are arranged at intervals on the third slide plate 54.

[0032] In one embodiment of the utility model, the driving part 3 includes a first slide 31 arranged along the X-axis and a first driving device 32 arranged at one end of the first slide 31. A first slide 33 is provided at the output end of the first driving device 32. The first slide 33 is slidably connected to the first slide 31. The workpiece spindle 2 is arranged perpendicular to the first slide 33. The first driving device 32 can drive the first slide 33 and the workpiece spindle 2 located on the upper end surface of the first slide 33 to adjust the processing position along the X-axis direction.

[0033] In one embodiment of the utility model, a through hole is provided at the center of the workpiece spindle 2 for the workpiece to pass through, and the center 52 and the grinding rod 42 are respectively arranged corresponding to the through hole. The workpiece to be processed is mounted on the workpiece spindle 2 and can be rotated in any circumferential direction.

[0034] In one embodiment of the utility model, a grinding wheel dresser 7 is provided on the upper end surface of the first slide 33. The grinding wheel dresser 7 is used to dress the grinding wheel into shape or remove the dull surface layer to restore the grinding performance and correct geometric shape of the working surface. The grinding wheel dresser 7 is located between the workpiece spindle 2 and the first drive device 32, and a turntable 8 is provided between the workpiece spindle 2 and the first slide 33.

[0035] The operating steps of the internal thread grinding equipment of the long cylindrical parts are as follows: the first driving device 32 drives the first slide 33 and the workpiece spindle 2 located on the upper end surface of the first slide 33 to be adjusted to a suitable processing position along the X-axis direction; then the grinding wheel spindle 41 drives the grinding rod 42 and the grinding wheel to move along the Z1-axis direction through the workpiece to be ground, and moves the tailstock 51 and the center 52 along the Z2-axis direction to the other end of the grinding rod 42 and presses the workpiece; then the grinding wheel spindle 41 drives the grinding rod 42 and the grinding wheel to rotate, and realizes high-precision and high-stability internal thread processing of the workpiece through interpolation.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An internal thread grinding device for a long cylindrical part, comprising a base (1) and a workpiece spindle (2) arranged on the upper end surface of the base (1) for mounting a workpiece for processing, a driving part (3) being arranged below the workpiece spindle (2), the driving part (3) being able to drive the workpiece spindle (2) to reciprocate along the X-axis direction, characterized in that: A processing portion (4) capable of reciprocating along the Z1 axis direction and a clamping device (5) capable of reciprocating along the Z2 axis direction are respectively provided at both ends of the base (1); the processing portion (4) comprises a grinding wheel spindle (41) and a grinding rod (42) arranged at the output end of the grinding wheel spindle (41); a grinding wheel is sleeved on the grinding rod (42); the clamping device (5) comprises a tailstock (51) and a top (52) arranged perpendicular to the tailstock (51) and used for clamping the grinding rod (42); the grinding rod (42) can pass through a workpiece so that the grinding wheel can perform internal thread processing under the drive of the grinding wheel spindle (41).

2. The internal thread grinding device for long cylindrical parts according to claim 1 is characterized in that: The driving part (3) comprises a first slide (31) arranged along the X-axis and a first driving device (32) arranged at one end of the first slide (31); a first slide plate (33) is provided at the output end of the first driving device (32); the first slide plate (33) is slidably connected to the first slide (31); and the workpiece spindle (2) is arranged perpendicular to the first slide plate (33).

3. The internal thread grinding device for long cylindrical parts according to claim 2 is characterized in that: A through hole is provided at the center of the workpiece spindle (2) for the workpiece to pass through, and the top (52) and the grinding rod (42) are respectively arranged corresponding to the through hole.

4. The internal thread grinding device for long cylindrical parts according to claim 2 is characterized in that: The upper end surface of the first slide plate (33) is also provided with a grinding wheel dresser (7), and the grinding wheel dresser (7) is located between the workpiece spindle (2) and the first driving device (32).

5. The internal thread grinding device for long cylindrical parts according to claim 4 is characterized in that: A turntable (8) is provided between the workpiece spindle (2) and the first slide plate (33).

6. The internal thread grinding device for long cylindrical parts according to claim 1 is characterized in that: The processing part (4) further comprises a second slide table (43) arranged along the Z1 axis and a second slide plate (44) slidably connected to the second slide table (43), and the grinding wheel spindle (41) is arranged perpendicular to the upper end surface of the second slide plate (44).

7. The internal thread grinding device for long cylindrical parts according to claim 6 is characterized in that: The second slide plate (44) is provided with a plurality of first mounting holes (441) at intervals for adjusting the mounting position of the grinding wheel spindle (41).

8. The internal thread grinding device for long cylindrical parts according to claim 1 is characterized in that: The tightening device (5) further comprises a third slide (53) located between the base (1) and the tail stock (51) and a third slide plate (54) slidably connected to the third slide (53); the third slide (53) is arranged along the Z2 axis, and the tail stock (51) and the third slide plate (54) are detachably connected.

9. The internal thread grinding device for long cylindrical parts according to claim 8, characterized in that: The third slide plate (54) is provided with a plurality of second mounting holes (541) at intervals and capable of adjusting the mounting position of the tail stock (51).

10. The internal thread grinding device for long cylindrical parts according to claim 8, characterized in that: The top (52) is in a cone shape.

Images