Tool magazine with braking function

Abstract

The utility model relates to equipment used for storing cutters in the field of automation equipment, in particular to a tool magazine with a braking function, which comprises a cutter head, a driving source and a plurality of cutters, the cutters are arranged on the cutter head, the output end of the driving source is connected with the cutter head, and the tool magazine is characterized by further comprising a speed reducer and a magnetic braking mechanism, the speed reducer is internally provided with a transmission element with the rotating speed ratio different from that of the output shaft of the driving source, the magnetic braking mechanism is formed by combining a first element and a second element which form braking torque by influencing changes of a magnetic ring, and the first element and the second element are arranged on the transmission element and the motor shaft respectively and correspond to each other. The brake mechanism is designed on the basis of the structure of the speed reducer, specifically, the two transmission elements with different rotating speeds are braked through the opposite attraction effect, the cutter head can be quickly stopped through the technical means of generating the stop resistance, and the waiting time for taking the cutter is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the equipment for depositing tool in the field of automation equipment, especially a tool magazine with braking function. BACKGROUND

[0002] The current tool magazine structure, such as patent number CN202320477287.1 named tool magazine.

[0003] The main problem solved by this tool magazine is the inconvenience of machining the stepped fixed concave-convex structure and the inadaptability between the servo motor. However, another problem exists in actual use: the tool has a long waiting time before reaching the specified position, because the traditional method is to cooperate with the host computer, and the host computer controls the speed, torque and other parameters of the motor through a series of complex algorithms, finally makes the tool reach the specified position.

[0004] As can be seen, the traditional tool magazine structure lacks specific braking means and cannot achieve the purpose of braking by relying on precise control of the motor. INVENTION CONTENTS

[0005] To solve the above problems, the utility model provides a tool magazine with braking function, which has a braking mechanism that can brake the tool disc in time after increasing the speed of the tool disc, reducing the waiting time for tool taking.

[0006] To achieve the above purpose, the utility model adopts the technical scheme of a tool magazine with braking function, which comprises a tool disc, a driving source and a tool. The tool is arranged on the tool disc, and the tool disc has a plurality of tools. The output end of the driving source is connected with the tool disc. The utility model is characterized in that it further comprises a speed reducer and a magnetic braking mechanism. The speed reducer has a transmission element with a different speed ratio from the output shaft of the driving source. The magnetic braking mechanism is composed of a first element and a second element that form a braking torque by affecting the change of the magnetic field. The first element and the second element are arranged on the transmission element and the motor shaft respectively and correspond to each other.

[0007] The utility model has the beneficial effects that:

[0008] The braking mechanism of the utility model is designed on the structure of the speed reducer. Specifically, the transmission element and the motor shaft with different speeds are braked by the effect of different sex attraction. This technology of generating stopping resistance makes the tool disc stop quickly, thus reducing the waiting time for tool taking.

[0009] In addition, this non-contact braking method does not produce any wear, and the braking process is also very stable, without any noise.

[0010] In the embodiment, the first element is a solid metal piece, the second element is a magnetic element, the solid metal piece is in a ring structure, the solid metal piece surrounds the magnetic element, the magnetic element is provided in plurality, the inner ring surface of the solid metal piece is also provided with the same number of abutting portions, the abutting portions extend towards the magnetic element, under the attraction, the whole resistance stroke static brake effect is amplified, and the brake efficiency is improved.

[0011] In the embodiment, the magnetic element is a magnet, the magnet is provided in six, the motor shaft is sleeved with a mounting portion, the magnet is distributed on the mounting portion, the magnetic element is in a ring array form on the mounting portion, and the corresponding abutting portion is also in a ring array form on the inner ring surface of the solid metal piece, when the magnet and the abutting portion are opposite to each other, the magnet and the abutting portion have a gap not in contact with each other.

[0012] The above-mentioned speed reducer is a harmonic drive speed reducer, the harmonic drive speed reducer is composed of a flexible gear, a steel gear and a wave generator, the wave generator is sleeved on the motor shaft, the flexible gear and the steel gear are in a ring structure, the flexible gear is sleeved on the wave generator, the steel gear is sleeved on the flexible gear, and the steel gear and the flexible gear are in meshing, and the above-mentioned is a prior art, and the specific connection mode and the use principle will not be repeated.

[0013] Further comprising a rotating seat and an end cover, the rotating seat is connected between the flexible gear, the rotating seat and the flexible gear are synchronously rotated, a notch structure is arranged on the outer circumferential surface of the rotating seat, the cutter head is located in the notch structure and connected with the rotating seat, the central region of the rotating seat is in an opening structure, the end cover is matched with the opening structure and fixed in the opening structure, and the solid metal piece is located on the inner ring surface of the end cover.

[0014] The driving source is a prior servo motor or other motors.

[0015] A step is arranged in the opening structure of the rotating seat, the end cover is fixed on the end cover, meanwhile, a ring groove is arranged on the step, and a screw hole is arranged in the ring groove.

[0016] In the second embodiment, the first element is a positioning piece for mounting the abutting portion, the abutting portion and the second element are all magnets with opposite polarities, and the second element is located between the abutting portions in the stopping phase.

[0017] In the third embodiment, the first element is a magnetic element, and the second element is a solid metal piece, and the cutter head can be braked in this way. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a sectional view of the internal structure of the utility model.

[0019] Figure 2The position relation diagram between the driving source and the magnetic braking mechanism in embodiment one.

[0020] Figure 3 The position relation diagram between the driving source and the magnetic braking mechanism in embodiment one. Figure 1 Another perspective view.

[0021] Figure 4 The position relation diagram between the driving source and the magnetic braking mechanism in embodiment one. Figure 3 The enlarged schematic view of A of

[0022] Figure 5 The schematic view of the end cover separated from the speed reducer.

[0023] Figure 6 The position relation diagram between the driving source and the magnetic braking mechanism in embodiment one. Figure 5 The enlarged schematic view of B of

[0024] Figure 7 The perspective view of the utility model. DETAILED DESCRIPTION

[0025] As shown in Figures 1-7 , a tool magazine with braking function, containing tool disc 1, driving source 2, tool 3, tool 3 is arranged on tool disc 1, and tool 3 is equipped with several, the output end of driving source 2 is connected with tool disc 1, its characterized in that, still containing speed reducer and magnetic braking mechanism, the transmission element with different speed ratio in speed reducer is different from driving source 2 output shaft, the first element and the second element combined by the braking torque formed by influencing magnetic field change form the magnetic braking mechanism, the first element and the second element are arranged on transmission element, motor shaft respectively, and correspond to each other.

[0026] The utility model has the advantages of:

[0027] The braking mechanism of the utility model is designed on the structure of the speed reducer, specifically, the transmission element and the motor shaft with different speeds are braked by the effect of different sex attraction, and the technical means of generating stopping resistance makes the tool disc 1 stop quickly, so that the waiting time for taking tools is reduced.

[0028] In addition, the non-contact braking mode does not produce any wear, and the braking process is also very stable, and no noise is produced.

[0029] In the embodiment, the first element is a solid metal piece 41, and the second element is a magnetic element 42, specifically, the solid metal piece 41 is of annular structure, the solid metal piece 41 surrounds the magnetic element 42, the magnetic element 42 is provided with a plurality of, the inner ring surface of the solid metal piece 41 is also provided with the same number of abutting portions 41a, the abutting portion 41a is stretched to the magnetic element 42 direction, under the action of attraction, the whole resistance stroke static brake effect is amplified, and the braking efficiency is improved.

[0030] In the embodiment, the magnetic elements 42 are magnets, six magnets are arranged on the mounting portion 21 of the motor shaft, and the magnetic elements 42 are arranged in a ring array on the mounting portion 21. The abutting portions 41a corresponding to the magnetic elements 42 are also arranged in a ring array on the inner ring surface of the solid metal piece 41. When the magnets and the abutting portions 41a are opposite to each other, the magnets and the abutting portions 41a have a gap 43 therebetween.

[0031] The above-mentioned speed reducer is a harmonic drive speed reducer 5, which is composed of a flexible gear, a steel gear and a wave generator. The wave generator is sleeved on the motor shaft, the flexible gear and the steel gear are both ring structures, the flexible gear is sleeved on the wave generator, and the steel gear is sleeved on the flexible gear and engaged with the flexible gear. The above-mentioned is the prior art, and the specific connection mode and use principle will not be described herein.

[0032] The rotating seat 6 and the end cover 7 are further included. The rotating seat 6 is connected with the flexible gear, and the rotating seat 6 rotates synchronously with the flexible gear. The outer circumferential surface of the rotating seat 6 is provided with a notch structure 61. The cutter head 1 is located in the notch structure 61 and connected with the rotating seat 6. The central region of the rotating seat 6 is an open structure. The end cover 7 is matched with the above-mentioned open structure and fixed in the open structure. The solid metal piece 41 is located on the inner ring surface of the end cover 7. Therefore, different rotating speeds of the solid metal piece 41 and the magnets can be obtained. In the embodiment, the ratio can reach 50:1.

[0033] The driving source 2 is a prior servo motor or other motor.

[0034] The open structure of the rotating seat 6 is provided with a step 62. The end cover 7 is fixed on the end cover 7. Meanwhile, the step 62 is provided with a ring groove. The ring groove is provided with a screw hole.

[0035] In the second embodiment, the first element is a positioning piece for mounting the abutting portions 41a. The abutting portions 41a and the second element are both magnets with opposite polarities. In the stop phase, the second element is located between the abutting portions 41a.

[0036] In the third embodiment, the first element is the magnetic element 42, and the second element is the solid metal piece 41. In this way, the cutter head 1 can also be braked.

[0037] The above-mentioned embodiments only describe the preferred embodiments of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various deformations and improvements of the technical solutions of the utility model made by ordinary engineering technicians in the field shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A tool magazine with a brake function, comprising a tool disc, a driving source, and tools, the tools being arranged on the tool disc and a plurality of the tools being provided, an output end of the driving source being connected with the tool disc, characterized in that, The device also comprises a speed reducer with transmission elements of different speed ratios from the driving source output shaft and a magnetic brake mechanism formed by a first element and a second element that generate braking torque by affecting magnetic field changes.

2. The knife magazine with a brake function according to claim 1, characterized in that, The first element is a solid metal piece, and the second element is a magnetic element.

3. The knife magazine with a brake function according to claim 2, characterized in that, The magnetic element is a magnet, and there are six magnets.

4. The knife magazine with a brake function according to claim 2, characterized in that, The speed reducer is a harmonic drive reducer.

5. The knife magazine with a brake function according to claim 4, characterized in that, The device also comprises a rotating seat and an end cover.

6. The tool magazine with a brake function according to any one of claims 1 to 5, characterized in that, The driving source is a servo motor.

7. The knife magazine with a brake function according to claim 6, characterized in that, The rotating seat has a stepped structure, and the end cover is fixed to the end cover.

8. The knife magazine with a brake function according to claim 2, characterized in that, The first element is a positioning piece for installing the abutting part.

9. The knife magazine with a brake function according to claim 2, characterized in that, The first element is a magnetic element, and the second element is a solid metal piece.

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