Machine tool spindle speed increasing device

Abstract

The utility model relates to the technical field of speed increasing devices, in particular to a machine tool spindle speed increasing device which comprises a gearbox, a rotating shaft is arranged on the upper side in the gearbox, a first change gear is fixedly sleeved on the right side of the outer wall of the rotating shaft, and a second change gear is fixedly sleeved on the outer wall of the rotating shaft and located on the left side of the first change gear. A third change gear fixedly sleeves the outer wall of the rotating shaft and is located on the left side of the second change gear, a machine tool spindle body is connected to the left end of the rotating shaft, a sleeve is arranged on the left lower side in the gearbox, a telescopic shaft sleeves the right upper side of the sleeve, and a movable gear is mounted at the right upper end of the telescopic shaft; an air cylinder is installed on the lower right side of the gearbox, the arranged movable gear can be pushed to make contact with the arranged first speed change gear, the arranged second speed change gear and the arranged third speed change gear through the arranged air cylinder and a push rod, and therefore the rotating speed of the machine tool spindle body can be changed by changing the contact modes of different large and small gears.

Description

TECHNICAL FIELD

[0001] The utility model relates to speed increasing device technical field, concretely is a machine tool spindle speed increasing device. BACKGROUND

[0002] Machine tool spindle refers to the shaft that drives workpiece or cutter rotation on the machine tool, at present, the machine tool spindle needs to adjust its rotating speed when using.

[0003] Therefore, a machine tool spindle speed increasing device is needed to improve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a machine tool spindle speed increasing device to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A machine tool spindle speed increasing device, including gearbox, the upper side in the inside of gearbox is provided with the pivot, the right side of the outer wall of pivot is fixed with first speed change gear, the outer wall of pivot and located the left side of first speed change gear is fixed with second speed change gear, the outer wall of pivot and located the left side of second speed change gear is fixed with third speed change gear, the left end of pivot is connected with machine tool spindle shaft body, the left lower side in the inside of gearbox is provided with sleeve, the right upper side of sleeve is connected with telescopic shaft, the right upper end of telescopic shaft is installed with movable gear, the right lower side of gearbox is installed with pneumatic cylinder, the left lower side of pneumatic cylinder and with movable gear correspond setting has the push rod, the left lower side of gearbox and with sleeve correspond and install motor.

[0007] As the preferred scheme of the utility model, the upper half of the gearbox is a right trapezoid, and the lower half of the gearbox is a rectangle.

[0008] As the preferred scheme of the utility model, the first speed change gear, the second speed change gear and the third speed change gear are all isosceles trapezoidal in shape, and the inclination of the first speed change gear, the second speed change gear and the third speed change gear is the same.

[0009] As the preferred scheme of the utility model, the angle of the movable gear is the same as the inclination of the first speed change gear, the second speed change gear and the third speed change gear.

[0010] As the preferred scheme of the utility model, the sleeve is connected with the drive shaft of the motor, and the connection between the sleeve and the gearbox is a rotary connection.

[0011] As the preferred scheme of the utility model, the telescopic shaft is connected with the sleeve in a sliding manner.

[0012] As the preferred scheme of the utility model, the connecting mode of the push rod and the movable gear is rotary connection.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、The utility model discloses a cylinder, push rod can push the movable gear with the first gear, second gear, third gear contact set, thereby can change the speed of machine tool spindle shaft body through the mode of contact of different size gears. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0016] Fig. 2 It is the inside upper side structure schematic diagram of the utility model gearbox;

[0017] Fig. 3 It is the inside lower side structure schematic diagram of the utility model gearbox.

[0018] In the drawing: 1, gearbox;2, rotating shaft;3, first gear;4, second gear;5, third gear;6, machine tool spindle shaft body;7, sleeve;8, telescopic shaft;9, movable gear;10, cylinder;11, push rod;12, motor. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more fully below in conjunction with relevant drawings, and several embodiments of the utility model are given, however, the utility model can be realized in many different forms, and is not limited to the embodiments described in the present text, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] Embodiments, please refer to Figs. 1-3 The utility model provides a technical scheme:

[0025] A machine tool spindle speed increasing device, including gearbox 1, the upper side of inside gearbox 1 is provided with shaft 2, the right side of the outer wall of shaft 2 is fixed with first speed change gear 3, the outer wall of shaft 2 and the left side of first speed change gear 3 are fixed with second speed change gear 4, the outer wall of shaft 2 and the left side of second speed change gear 4 are fixed with third speed change gear 5, the left end of shaft 2 is connected with machine tool spindle shaft body 6, the lower left side of inside gearbox 1 is provided with sleeve 7, the right upper side of sleeve 7 is sleeved with telescopic shaft 8, the right upper end of telescopic shaft 8 is installed with movable gear 9, the lower right side of gearbox 1 is installed with cylinder 10, the lower left side of cylinder 10 and movable gear 9 correspondingly are provided with push rod 11, the lower left side of gearbox 1 and sleeve 7 correspondingly are installed with motor 12.

[0026] In the embodiment, the upper half of the gearbox 1 is a right trapezoid, the lower half of the gearbox 1 is a rectangle, the first gear 3, the second gear 4 and the third gear 5 are all isosceles trapezoids, the inclination of the first gear 3, the second gear 4 and the third gear 5 is the same, the angle of the movable gear 9 is the same as the inclination of the first gear 3, the second gear 4 and the third gear 5, the sleeve 7 is connected with the driving shaft of the motor 12, the connection between the sleeve 7 and the gearbox 1 is a rotating connection, the connection between the telescopic shaft 8 and the sleeve 7 is a sliding connection, the connection between the push rod 11 and the movable gear 9 is a rotating connection, the movable gear 9 can be pushed to contact the first gear 3, the second gear 4 and the third gear 5 through the cylinder 10 and the push rod 10, so that the rotating speed of the machine tool spindle 6 can be changed by changing the contact mode of gears of different sizes.

[0027] The working process of the utility model is as follows: when in use, first, the motor 12 is started to drive the sleeve 7 and the telescopic shaft 8 to rotate, at this time, the movable gear 9 also rotates, then the cylinder 10 is started and the movable gear 9 is pushed to move through the push rod 11, until the movable gear 9 contacts the first gear 3, the second gear 4 and the third gear 5, at this time, the rotating speed changes, so that the rotating speed of the machine tool spindle 6 changes, the movable gear 9 can be pushed to contact the first gear 3, the second gear 4 and the third gear 5 through the cylinder 10 and the push rod 10, so that the rotating speed of the machine tool spindle 6 can be changed by changing the contact mode of gears of different sizes.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A machine tool spindle speed-increasing device, comprising a gearbox (1), characterized in that: A rotating shaft (2) is provided on the upper side inside the gearbox (1). A first gear (3) is fixedly sleeved on the right side of the outer wall of the rotating shaft (2). A second gear (4) is fixedly sleeved on the outer wall of the rotating shaft (2) and on the left side of the first gear (3). A third gear (5) is fixedly sleeved on the outer wall of the rotating shaft (2) and on the left side of the second gear (4). The left end of the rotating shaft (2) is connected to the machine tool spindle body (6). A sleeve (7) is provided on the lower left side inside the gearbox (1). A telescopic shaft (8) is sleeved on the upper right side of the sleeve (7). A movable gear (9) is installed on the upper right end of the telescopic shaft (8). A cylinder (10) is installed on the lower right side of the gearbox (1). A push rod (11) is provided on the lower left side of the cylinder (10) and corresponding to the movable gear (9). A motor (12) is installed on the lower left side of the gearbox (1) and corresponding to the sleeve (7).

2. The machine tool spindle speed-increasing device according to claim 1, characterized in that: The upper half of the gearbox (1) is a right trapezoid, and the lower half of the gearbox (1) is a rectangle.

3. The machine tool spindle speed-increasing device according to claim 1, characterized in that: The first gear (3), the second gear (4), and the third gear (5) are all isosceles trapezoids, and the inclination of the waist of the first gear (3), the second gear (4), and the third gear (5) is the same.

4. The machine tool spindle speed-increasing device according to claim 1, characterized in that: The angle of inclination of the movable gear (9) is the same as the inclination of the waist of the first gear (3), the second gear (4), and the third gear (5).

5. A machine tool spindle speed-increasing device according to claim 1, characterized in that: The sleeve (7) is connected to the drive shaft of the motor (12), and the sleeve (7) is connected to the gearbox (1) by rotation.

6. The machine tool spindle speed-increasing device according to claim 1, characterized in that: The telescopic shaft (8) and the sleeve (7) are connected by a sliding connection.

7. A machine tool spindle speed-increasing device according to claim 1, characterized in that: The push rod (11) is connected to the movable gear (9) by a rotatable connection.

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