A device for grinding non-cylindrical sides which can be installed on a machine tool

Abstract

The application discloses a device for grinding non-cylindrical side surface, which can be installed on a machine tool and mainly comprises a handle, a grinding mechanism and a grinding sleeve. The grinding mechanism is connected with the handle and the grinding sleeve through a tight bolt screw. The side wall of the grinding mechanism is provided with a cam track. The side surface of the grinding sleeve is provided with a roller and an annular cam track. The grinding sleeve realizes the extension and rotation of the axis through the grinding mechanism. The grinding mechanism comprises a cam track and a center sleeve part. The cam track is composed of an upper track, a connecting sleeve and a lower track. The center sleeve part is provided with a roller on the circumference. The rotation shaft of the roller is perpendicular to the axis of the center sleeve part. The roller is matched with the cam track. The grinding sleeve installed on the machine tool can realize the circular motion and the reciprocating motion. The grinding can be realized on a common lathe, the requirement for the equipment is low, the cost is reduced and the use is convenient.

Description

Technical Field

[0001] This invention belongs to the technical field of machining, specifically relating to a device that can be installed on a machine tool to grind the side surfaces of non-cylindrical surfaces. Background Technology

[0002] In machining, grinding can be used to process various metal and non-metal materials. The surface shapes processed include planes, inner and outer cylindrical surfaces and conical surfaces, convex and concave spherical surfaces, threads, tooth surfaces and other profiles. When grinding non-cylindrical sides, the equipment needs to reciprocate and rotate.

[0003] A grinding machine with publication number CN112548843A rotates the workpiece relative to the grinding head via a rotating component. The grinding head can move left and right under the action of a lateral moving component and move up and down under the action of a lifting component, possessing three degrees of freedom. It can monitor the grinding pressure of the grinding head through a pressure sensor to precisely control the magnitude of the grinding pressure, ensuring the polishing quality of the workpiece. It can be used for grinding and polishing workpieces requiring high precision, flatness, and roughness, improving grinding and polishing efficiency and yield. The grinding head is detachable, and only the grinding head needs to be replaced when grinding workpieces of different materials, making it convenient to use. However, the cost of dedicated equipment is relatively high, making it inconvenient for small and medium batch processing.

[0004] CN104493684A discloses a grinding equipment for cylindrical parts, its workpiece feeding device, and a grinding method. This method simultaneously grinds a large number of cylindrical rollers distributed in multiple straight grooves, improving the dimensional consistency of the cylindrical roller surfaces. It is beneficial for improving the processing efficiency of cylindrical roller surfaces, has mass production capabilities, and produces workpieces with good dimensional consistency, high shape accuracy, high processing efficiency, and low processing cost. However, this equipment can only grind cylindrical parts, limiting its application. For non-cylindrical sides, such as the sides of gears, splines, triangular prisms, and other polygonal prisms, manual grinding is necessary, which is inefficient and makes it difficult to ensure uniform grinding.

[0005] Therefore, to address the above problems, a grinding device is needed to enable grinding of non-cylindrical sides on ordinary lathes, drilling machines, and other machine tools. Summary of the Invention

[0006] To address the aforementioned problems, the present invention aims to provide a device that can be installed on a machine tool for grinding non-cylindrical sides.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a device that can be installed on a machine tool for grinding non-cylindrical sides, mainly composed of a shank, a grinding mechanism and a grinding sleeve. The grinding mechanism is located in the middle and is connected to the shank and the grinding sleeve respectively by fastening screws. There is a cam track on the side wall of the grinding mechanism. The side of the grinding sleeve has rollers and annular cam tracks that cooperate. The grinding sleeve realizes the extension and rotation of the axis through the grinding mechanism.

[0008] The grinding mechanism includes a cam track and a central sleeve. The cam track consists of an upper track, a connecting sleeve, and a lower track. Rollers are installed on the circumference of the central sleeve. The axis of rotation of the rollers is perpendicular to the axis of the central sleeve. The rollers and the cam track cooperate with each other.

[0009] The two sides of the connecting sleeve are connected to the upper runway and the lower runway, respectively.

[0010] The two opposite end faces of the upper and lower runways are surfaces fitted with sine functions, and the gap between the two end faces forms a cam runway. The width of the cam runway is equal to the diameter of the roller.

[0011] The central sleeve includes a central sleeve, a roller shaft, a roller, and a retaining ring. The roller is fixed to the central sleeve by the roller shaft and the retaining ring. The roller shaft is perpendicular to the axis of the central sleeve and is installed on the circumference. The grinding sleeve is inserted into the central sleeve and fixed by the retaining sheath.

[0012] The stop pin is inserted into the axial groove of the grinding sleeve, and the set screw is pressed on the axial inclined surface of the grinding sleeve to prevent axial movement and to contact the end face of the center sleeve.

[0013] The rollers are mounted on the cam track, and multiple rollers are mounted on the cam track.

[0014] The outer end of the grinding sleeve is designed according to different grinding surface requirements, and the grinding sleeve can be replaced with a grinding rod.

[0015] The interface of the shank is connected to a Morse taper shank or a cutting tool shank.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. Common machine tools such as ordinary lathes and drilling machines can only achieve circular rotation. The grinding mechanism converts the circular rotation motion of the equipment into reciprocating motion. The grinding sleeve installed on the lathe can achieve both circular and reciprocating motion. Grinding can be performed on ordinary machine tools, which has lower requirements for equipment, reduces costs, and is convenient to use.

[0018] 2. The grinding sleeve and the central sleeve have a fixed interface, and different grinding sleeves can be designed at the outer end according to different grinding surfaces. The replacement is quick and meets different processing needs.

[0019] 3. The grinding sleeve, which performs the grinding function, can be quickly replaced, or it can be replaced with a grinding rod as needed, making it highly adaptable.

[0020] 4. The handle interface can be fixed and designed. The installed handle can be a Morse taper shank or a lathe tool shank, which can be used for machining on ordinary lathes and drilling machines, with high machining efficiency and good consistency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the device for grinding non-cylindrical sides that can be installed on a machine tool according to the present invention;

[0023] Figure 2 for Figure 1 Enlarged view of the middle T section;

[0024] Figure 3 This is a schematic diagram of the device for grinding non-cylindrical sides that can be installed on a machine tool according to the present invention;

[0025] Figure 4 This is a schematic diagram of grinding on a lathe in this invention;

[0026] Figure 5 This is a schematic diagram of grinding on a drilling machine in this invention;

[0027] Figure 6 This is a schematic diagram of the runway end face in this invention;

[0028] In the figure, 1-shank; 2-lower runner; 21-first screw; 3-connecting sleeve; 4-upper runner; 5-center sleeve; 6-roller shaft; 7-roller; 8-retaining ring; 9-stop pin; 10-set screw; 11-grinding sleeve; 12-grinding mechanism; 13-lathe tailstock; 14-workpiece; 15-lathe chuck; 16-lathe body; 17-drilling machine body; 18-drilling machine spindle; 19-workpiece clamping tool. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. All modifications, substitutions and alterations made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0030] Reference Figures 1-3 A device for grinding non-cylindrical sides, which can be installed on a machine tool, mainly consists of a shank 1, a grinding mechanism 12, and a grinding sleeve 11. The grinding mechanism is located in the middle and is connected to the shank 1 and the grinding sleeve 11 respectively by fastening screws 10. The side wall of the grinding mechanism 12 has a cam track, and the side of the grinding sleeve 11 has rollers 7 that cooperate with the annular cam track. The grinding sleeve 11 realizes the extension, retraction, and rotation of its axis through the grinding mechanism 12.

[0031] The grinding mechanism 12 includes a cam track and a central sleeve. The cam track consists of an upper track 4, a connecting sleeve 3, and a lower track 2. A roller 7 is installed on the circumference of the central sleeve. The axis of rotation of the roller 7 is perpendicular to the axis of the central sleeve. The roller 7 and the cam track cooperate with each other.

[0032] The two sides of the connecting sleeve 3 are respectively connected to the upper runway 4 and the lower runway 2.

[0033] The two opposite end faces of the upper runway 4 and the lower runway 2 are surfaces fitted with a sine function. The gap between the two end faces forms a cam runway, and the width of the cam runway is equal to the diameter of the roller 7.

[0034] The central sleeve portion includes a central sleeve 5, a roller shaft 6, a roller 7, and a retaining ring 8. The roller 7 is fixed to the central sleeve 5 by the roller shaft 6 and the retaining ring 8. The roller shaft 6 is perpendicular to the axis of the central sleeve 5 and is installed on the circumference. The grinding sleeve 11 is inserted into the central sleeve 5 and fixed by the retaining sheath 9.

[0035] The stop pin 9 is engaged in the axial groove of the grinding sleeve 11, and the set screw 10 is pressed on the axial inclined surface of the grinding sleeve 11 to prevent axial movement and to contact the end face of the center sleeve 5.

[0036] The roller 7 is mounted on the cam track, and multiple rollers 7 are mounted on the cam track.

[0037] The outer end of the grinding sleeve 11 is designed according to different grinding surface requirements, and the grinding sleeve 11 can be replaced with a grinding rod.

[0038] The interface of the shank 1 is connected to a Morse taper shank or a cutting tool shank.

[0039] Example 1: Refer to Figure 4The grinding process is performed on the lathe body 16. The workpiece 14 is clamped on the lathe spindle by the lathe chuck 15, and the end of the workpiece 14 to be ground is engaged with the grinding sleeve 11. When the lathe is working, the workpiece 14 and the lathe chuck 15 rotate together, driving the grinding sleeve 11 to rotate. Since the grinding sleeve 11 is connected to the grinding mechanism 12, the central sleeve also rotates. At this time, the cam track is connected to the shank 1 and fixed together on the lathe tailstock, so the central sleeve and the cam track rotate relative to each other. Since the cam track is wavy in the plane, it generates axial reciprocating motion under the action of the cam sinusoidal track, thereby achieving the purpose of grinding.

[0040] Example 2: Refer to Figure 5 Grinding is performed on a drilling machine. The workpiece 14 is clamped by a workpiece clamping tool 19. The shank 1 is mounted on the drilling machine spindle 18. When the lathe is working, the shank 1 and the drilling machine spindle rotate together while the workpiece is fixed. The central sleeve part rotates relative to the cam track. Since the cam track is wavy on the plane, it generates axial reciprocating motion under the action of the cam sinusoidal track, thereby achieving the purpose of grinding.

[0041] Reference Figure 6 The runway end face can be designed as a sinusoidal function shape with different amplitudes and periods according to different needs.

[0042] The foregoing has provided a detailed description of a device for grinding non-cylindrical sides on a machine tool, as provided by the present invention. Specific examples have been used to illustrate the structure and working principle of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A device for grinding non-cylindrical sides on a machine tool, characterized in that: It is mainly composed of a handle (1), a grinding mechanism (12) and a grinding sleeve (11). The grinding mechanism is located in the middle and is connected to the handle (1) and the grinding sleeve (11) respectively by a set screw (10). The grinding mechanism (12) includes a cam track and a central sleeve. The grinding mechanism (12) has a cam track on its side wall. The grinding sleeve (11) has a roller (7) on its side that cooperates with the annular cam track. The grinding sleeve (11) achieves the extension and rotation of its axis through the grinding mechanism (12). The cam track consists of an upper track (4), a connecting sleeve (3), and a lower track (2). The two sides of the connecting sleeve (3) are connected to the upper track (4) and the lower track (2) respectively. A roller (7) is installed on the circumference of the central sleeve. The axis of rotation of the roller (7) is perpendicular to the axis of the central sleeve. The roller (7) cooperates with the cam track. The outer end of the grinding sleeve (11) is designed according to different grinding surface requirements. The grinding sleeve (11) has a fixed interface with the central sleeve. The central sleeve includes a central sleeve (5), a roller shaft (6), a roller (7) and a retaining ring (8). The roller (7) is fixed on the central sleeve (5) through the roller shaft (6) and the retaining ring (8). The roller shaft (6) is perpendicular to the axis of the central sleeve (5) and is installed on the circumference. The grinding sleeve (11) is inserted into the central sleeve (5) and fixed by a retaining pin (9).

2. The device for grinding non-cylindrical sides on a machine tool according to claim 1, characterized in that: The two opposite end faces of the upper runway (4) and the lower runway (2) are surfaces fitted with sine functions. The gap between the two end faces forms a cam runway, and the width of the cam runway is equal to the diameter of the roller (7).

3. The device for grinding non-cylindrical sides on a machine tool according to claim 1, characterized in that: The stop pin (9) is inserted into the axial groove of the grinding sleeve (11), and the set screw (10) is pressed on the axial inclined surface of the grinding sleeve (11) to prevent axial movement and is in contact with the end face of the center sleeve (5).

4. The device for grinding non-cylindrical sides on a machine tool according to claim 1, characterized in that: The roller (7) is mounted on the cam track, and multiple rollers (7) are mounted on the cam track.

5. The device for grinding non-cylindrical sides on a machine tool according to claim 1, characterized in that: The grinding sleeve (11) can be replaced with a grinding rod.

6. The device for grinding non-cylindrical sides on a machine tool according to claim 1, characterized in that: The interface of the shank (1) is connected to a Morse taper shank or a cutting tool shank.

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