Tool changing unloading structure of motorized spindle

Abstract

The utility model relates to the technical field of motorized spindles, and discloses a tool changing unloading structure of a motorized spindle, which comprises a motorized spindle main body, a limiting ring is arranged at the bottom of the motorized spindle main body, a mounting cylinder is arranged at the bottom of the limiting ring, and limiting components are arranged on the outer surfaces of the motorized spindle main body, the limiting ring and the mounting cylinder. The limiting assembly comprises a protective shell, a screw rod, a sliding rod, an arc-shaped clamping plate, a bevel gear, a bevel tooth circular ring, an outer tooth ring, a micro motor and a straight gear. According to the tool changing unloading structure of the motorized spindle, through threaded connection of the screw rod and the limiting ring, the moving resistance of the arc-shaped clamping plate is increased, the firmness of a tool in the operation process is improved, the stability in the using process is improved, meanwhile, by means of the arrangement of the buffering pieces on the arc-shaped clamping plate, direct rigid contact with the tool is avoided, the buffering effect during disassembly and assembly is improved, and the tool changing unloading structure is convenient to use. The unloading effect is achieved, the problems of abrasion and the like are avoided, and therefore operation and use of workers are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindles, in particular to a tool changing and unloading structure of an electric spindle. Background Technique

[0002] An electric spindle is a new technology that integrates the machine tool spindle and the spindle motor in the field of numerical control machine tools. The spindle is a set of components, which includes the electric spindle itself and its accessories: electric spindle, high-frequency variable frequency device, oil mist lubricator, cooling device, built-in encoder, tool changing device, etc.

[0003] For example, an efficient tool-changing electric spindle for an industrial robot with the Chinese patent number CN212469782U. In this utility model, the clamping head is a cylindrical structure, and a slot is arranged on the clamping head, and the slot cooperates with the electric push rod in the connecting slot. As a result, two electric devices need to participate in the tool-changing process of this utility model, which greatly increases the use cost of the device, improves the energy consumption of the device, and is not conducive to the use of users. Therefore, a tool-changing and unloading structure of an electric spindle is proposed to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a tool-changing and unloading structure of an electric spindle, which has the advantages of reducing energy consumption, reducing costs and being convenient to use, and solves the problems of high tool-changing costs and inconvenience to users existing in the comparative document.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A tool-changing and unloading structure of an electric spindle, including an electric spindle main body, a limiting ring is arranged at the bottom of the electric spindle main body, an installation cylinder is arranged at the bottom of the limiting ring, and a limiting component is arranged on the outer surfaces of the electric spindle main body, the limiting ring and the installation cylinder;

[0008] The limiting component includes a protective shell, a screw rod, a sliding rod, an arc-shaped clamping plate, a bevel gear, a bevel gear ring, an external gear ring, a micro motor and a straight gear. A protective shell is arranged on the outer surfaces of the electric spindle main body and the installation cylinder. Screw rods are arranged at both ends of the limiting ring, sliding rods are arranged at both ends of the limiting ring, arc-shaped clamping plates are rotatably connected to the opposite sides of the two screw rods, bevel gears are connected to both ends of the limiting ring, a bevel gear ring is arranged at the top of the installation cylinder, an external gear ring is installed on the outer surface of the bevel gear ring, a micro motor is arranged at the top of the installation cylinder, and a straight gear is arranged on the outer surface of the output shaft of the micro motor.

[0009] Further, first screw holes are formed at both ends of the limiting ring. The screw rod passes through the first screw holes and extends into the interior of the limiting ring, and is threadedly connected to the first screw holes. A buffer sheet is mounted on the inner wall of the arc-shaped clamping plate.

[0010] Further, sealing sliding holes are formed at both ends of the limiting ring. The sliding rod passes through the sealing sliding holes and extends into the interior of the limiting ring. The opposite sides of the two sliding rods are respectively connected to the opposite sides of the two arc-shaped clamping plates.

[0011] Further, a second screw hole is formed on the outer surface of the bevel gear. The bevel gear is sleeved on the outer surface of the screw rod through the second screw hole and is threadedly connected to the screw rod.

[0012] Further, a first sliding ring is mounted on the outer surface of the bevel gear. First annular sliding grooves are formed at both ends of the limiting ring. The first sliding ring is slidably connected to the first annular sliding grooves.

[0013] Further, a second annular sliding groove is formed at the top of the mounting cylinder. The bevel gear ring is slidably connected to the second annular sliding groove. The bevel gear ring meshes with the two bevel gears, and the external gear ring meshes with the spur gear.

[0014] (III) Advantageous Effects

[0015] Compared with the prior art, the technical solution of the present application has the following advantageous effects:

[0016] 1. For the tool changing and unloading structure of the electric spindle, by setting the threaded connection between the screw rod and the limiting ring, the moving resistance of the arc-shaped clamping plate is increased, the firmness of the tool during operation is improved, the stability during use is increased. At the same time, by arranging the buffer sheet on the arc-shaped clamping plate, direct rigid contact with the tool is avoided, the buffer effect during disassembly and assembly is increased, the unloading effect is achieved, and problems such as wear are avoided, thus facilitating the operation and use of the staff.

[0017] 2. For the tool changing and unloading structure of the electric spindle, by driving the spur gear by the micro motor and relying on the meshing between the spur gear and the external gear ring, the rotation of the bevel gear ring can rely on the micro motor, so that the rotation of the two screw rods is provided by this single micro motor, greatly reducing the energy consumption cost during use, ensuring the actual limiting effect, reducing the overall cost required for tool changing operations, and facilitating the use of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view structural diagram of the present utility model;

[0019] Figure 2 is a partial front view sectional view of the present utility model;

[0020] Figure 3For the present utility model Figure 2 The enlarged view of part A in

[0021] In the figure: 1. Electric spindle main body; 2. Limit ring; 3. Installation cylinder; 4. Limit component; 401. Protective shell; 402. Screw; 403. Slide bar; 404. Arc-shaped clamping plate; 405. Bevel gear; 406. Bevel gear ring; 407. External gear ring; 408. Micro motor; 409. Straight gear. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 3 , a tool change and unloading structure of an electric spindle in this embodiment includes an electric spindle main body 1, a limit ring 2 is provided at the bottom of the electric spindle main body 1, an installation cylinder 3 is provided at the bottom of the limit ring 2, and a limit component 4 is provided on the outer surfaces of the electric spindle main body 1, the limit ring 2 and the installation cylinder 3.

[0024] In the embodiment, the limit component 4 is composed of nine components such as a protective shell 401, a screw 402, a slide bar 403, an arc-shaped clamping plate 404, a bevel gear 405, a bevel gear ring 406, an external gear ring 407, a micro motor 408 and a straight gear 409, achieving the purpose of reducing energy consumption, reducing costs and being convenient to use.

[0025] In the embodiment, a protective shell 401 is provided on the outer surfaces of the electric spindle main body 1 and the installation cylinder 3, screws 402 are provided at both ends of the limit ring 2, slide bars 403 are provided at both ends of the limit ring 2, and arc-shaped clamping plates 404 are rotatably connected to the relative sides of the two screws 402, constituting a linear movement structure of screw connection transmission, enabling the two arc-shaped clamping plates 404 to move relatively to clamp and release the electric spindle tool.

[0026] In the embodiment, bevel gears 405 are connected to both ends of the limit ring 2, and a bevel gear ring 406 is provided at the top of the installation cylinder 3, so that the rotation of the two bevel gears 405 is driven by the rotation of the bevel gear ring 406, thereby achieving the effect of the two bevel gears 405 rotating in the same direction, and further driving the two screws 402 for clamping.

[0027] In an embodiment, an external gear ring 407 is installed on the outer surface of the bevel gear ring 406. A micro motor 408 is provided at the top of the installation cylinder 3. A spur gear 409 is provided on the outer surface of the output shaft of the micro motor 408, so that the micro motor 408 drives the spur gear 409 to drive the external gear ring 407, and then drives the bevel gear ring 406 to rotate.

[0028] It should be noted that this part aims to provide background or context for the embodiments described in the claims, and detailed descriptions of known functions and known components are omitted. At the same time, both fixed and movable installations are determined according to the actual application methods. To ensure the compatibility of the equipment, the operating means adopted are consistent with the parameters of market instruments. The descriptions herein are not admitted to be prior art just because they are included in this part.

[0029] During implementation, the operations are carried out according to the following steps:

[0030] 1. First, start the micro motor 408 to rotate, drive the spur gear 409 to rotate, drive the engaged external gear ring 407, and drive the bevel gear ring 406.

[0031] 2. Then, the rotation of the bevel gear ring 406 drives the two engaged bevel gears 405 to rotate.

[0032] 3. Finally, the bevel gear 405 drives the screw 402 to rotate the two screws 402. Through threaded connection, it continuously penetrates or ejects, thereby realizing the clamping and loosening of the tool.

[0033] In summary, for the tool change unloading structure of this electric spindle, by setting the threaded connection between the screw 402 and the limit ring 2, the moving resistance of the arc-shaped clamping plate 404 is increased, the firmness of the tool during operation is improved, and the stability during use is increased. At the same time, by setting the buffer sheet on the arc-shaped clamping plate 404, direct rigid contact with the tool is avoided, the buffer effect during disassembly and assembly is increased, the unloading effect is achieved, and problems such as wear are avoided, thus facilitating the operation and use of the staff.

[0034] Moreover, by using the micro motor 408 to drive the spur gear 409 and relying on the engagement between the spur gear 409 and the external gear ring 407, the rotation of the bevel gear ring 406 can be achieved by the effect of the micro motor 408. Furthermore, the rotation of the two screws 402 is provided by this single micro motor 408, significantly reducing the energy consumption cost during use, ensuring the limiting effect in actual use, reducing the overall cost required for tool change operations, facilitating the use of the user, and solving the problem in the comparative document that the tool change cost is relatively high and it is not conducive to the use of the user.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool-changing and unloading structure for an electric spindle, comprising an electric spindle main body (1), characterized in that: A limiting ring (2) is provided at the bottom of the main body (1) of the electric spindle, an installation cylinder (3) is provided at the bottom of the limiting ring (2), and a limiting component (4) is provided on the outer surfaces of the main body (1) of the electric spindle, the limiting ring (2) and the installation cylinder (3). The limiting component (4) includes a protective shell (401), a screw (402), a slide bar (403), an arc-shaped clamping plate (404), a bevel gear (405), a bevel gear ring (406), an external gear ring (407), a micro motor (408) and a spur gear (409). The protective shell (401) is provided on the outer surfaces of the main body (1) of the electric spindle and the installation cylinder (3). The screw (402) is provided at both ends of the limiting ring (2), and the slide bar (403) is provided at both ends of the limiting ring (2). Arc-shaped clamping plates (404) are rotatably connected to the opposite sides of the two screws (402). Bevel gears (405) are connected to both ends of the limiting ring (2). A bevel gear ring (406) is provided at the top of the installation cylinder (3). The external gear ring (407) is installed on the outer surface of the bevel gear ring (406). The micro motor (408) is provided at the top of the installation cylinder (3), and the spur gear (409) is provided on the outer surface of the output shaft of the micro motor (408).

2. The tool changing and unloading structure of an electric spindle according to claim 1, characterized in that: First screw holes are opened at both ends of the limiting ring (2). The screw (402) passes through the first screw hole and extends into the interior of the limiting ring (2), and is threadedly connected to the first screw hole. A buffer sheet is installed on the inner wall of the arc-shaped clamping plate (404).

3. The tool changing and unloading structure of an electric spindle according to claim 1, characterized in that: Sealed slide holes are opened at both ends of the limiting ring (2). The slide bar (403) passes through the sealed slide hole and extends into the interior of the limiting ring (2). The opposite sides of the two slide bars (403) are respectively connected to the opposite sides of the two arc-shaped clamping plates (404).

4. The tool changing and unloading structure of an electric spindle according to claim 1, characterized in that: Second screw holes are opened on the outer surface of the bevel gear (405). The bevel gear (405) is sleeved on the outer surface of the screw (402) through the second screw hole and is threadedly connected to the screw (402).

5. The tool changing and unloading structure of an electric spindle according to claim 1, characterized in that: A first sliding ring is installed on the outer surface of the bevel gear (405). First annular chutes are opened at both ends of the limiting ring (2). The first sliding ring is slidably connected to the first annular chute.

6. The tool changing and unloading structure of an electric spindle according to claim 1, characterized in that: A second annular chute is opened at the top of the installation cylinder (3). The bevel gear ring (406) is slidably connected to the second annular chute. The bevel gear ring (406) is meshed with the two bevel gears (405), and the external gear ring (407) is meshed with the spur gear (409).

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