Automatic tool changing grinding head assembly and grinding equipment

Abstract

The utility model relates to the technical field of machining equipment, and particularly discloses an automatic tool changing grinding head assembly and grinding equipment. The rotary driving module is connected with the rotary sleeve and drives the rotary sleeve to rotate around the axis of the rotary sleeve; one end of the cutter clamping sleeve extends into the rotating sleeve; the linear driving module is connected with the tool clamping sleeve; the other end of the tool clamping sleeve has an outward extending state in which the other end is driven by the linear driving module in the forward direction to extend out of the rotating sleeve so as to clamp a grinding head tool, and has an inward retracting state in which the other end is driven by the linear driving module in the reverse direction to retract inwards to abut against the inner wall of the rotating sleeve. According to the automatic tool changing grinding head assembly and the grinding equipment, mechanical tool changing operation can be achieved, then production efficiency is improved, and accident risks are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to an automatic tool-changing grinding head assembly and grinding equipment. Background Art

[0002] The grinding head assembly includes a grinding head tool, a tool fixture for clamping and fixing the grinding head tool, and a grinding head motor that drives the tool fixture to drive the grinding head tool to rotate for grinding operations. Different grinding operation requirements require the replacement of grinding head tools of different specifications. Currently, the tool replacement operation is mainly completed manually, which is inefficient and dangerous, and is easy to injure workers.

[0003] Therefore, it is necessary to improve the existing grinding head assembly to realize mechanized tool changing operation, thereby improving production efficiency and reducing accident risks.

[0004] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0005] One purpose of the utility model is to provide an automatic tool-changing grinding head assembly and a grinding device, which can realize mechanized tool-changing operations, thereby improving production efficiency and reducing accident risks.

[0006] To achieve the above objectives, on the one hand, the utility model provides an automatic tool-changing grinding head assembly, comprising:

[0007] Rotating sleeve;

[0008] A rotation driving module, the rotation driving module is connected to the rotating sleeve and drives the rotating sleeve to rotate around the axis of the rotating sleeve;

[0009] A tool chuck, one end of which extends into the rotating sleeve;

[0010] A linear drive module, the linear drive module is connected to the tool sleeve;

[0011] Among them, the other end of the tool clamp has an extended state in which it is driven forward by the linear drive module to extend outward to the outside of the rotating sleeve so as to clamp the grinding head tool, and has an inward state in which it is driven reversely by the linear drive module to retract inward to abut against the inner wall of the rotating sleeve.

[0012] Optionally, the tool clamp sleeve includes a plurality of elastic clips arranged around the central axis of the tool clamp sleeve, and a spacing space is provided between two adjacent elastic clips.

[0013] Optionally, the rotating sleeve is provided with a bell mouth for the tool sleeve to pass through at a position corresponding to each of the elastic clips, wherein the diameter of the bell mouth gradually increases in a direction away from the linear drive module.

[0014] Optionally, a supporting boss matching the inner wall of the bell mouth is provided on the outer side of each elastic clip; wherein the thickness of the supporting boss gradually increases in a direction away from the linear drive module.

[0015] Optionally, the rotation drive module includes a rotation drive mechanism, and a belt and pulley assembly that transmission-connects the rotation drive mechanism and the rotating sleeve.

[0016] Optionally, the linear drive module includes:

[0017] A connecting rod, one end of which extends into the rotating sleeve and is connected to the tool sleeve;

[0018] A linear drive mechanism, wherein a driving end of the linear drive mechanism is connected to the other end of the connecting rod, and is used to drive the connecting rod to reciprocate relative to the rotating sleeve in an axial direction.

[0019] Optionally, a transfer member is further provided between the linear drive mechanism and the connecting rod, and the transfer member is rotationally connected to the connecting rod.

[0020] On the other hand, a grinding device is provided, comprising a manipulator and any one of the automatic tool-changing grinding head assemblies described above.

[0021] The beneficial effect of the utility model is that it provides an automatic tool-changing grinding head assembly and a grinding device. When the tool needs to be changed, the linear drive module drives the tool sleeve to extend outward to the extended state, and the tool sleeve can release the original grinding head tool and put in a new grinding head tool; then, the linear drive module drives the tool sleeve to retract inward to the retracted state, and the tool sleeve can clamp the new grinding head tool. It should be noted that when in the retracted state, the outer wall of the tool sleeve is against the inner wall of the rotating sleeve, and there is a large maximum static friction force between the two. Under the action of the maximum static friction force, when the rotary drive module drives the rotating sleeve to rotate, the tool sleeve will drive the grinding head tool to rotate with the rotating sleeve, thereby completing the grinding operation.

[0022] Therefore, the automatic tool-changing grinding head assembly and grinding equipment provided by the utility model can realize mechanized tool-changing operations, thereby improving production efficiency and reducing accident risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 A schematic diagram of the structure of a grinding device provided in an embodiment;

[0025] Figure 2 A schematic diagram of the structure of an automatic tool-changing grinding head assembly provided in an embodiment;

[0026] Figure 3 A cross-sectional schematic diagram of an automatic tool-changing grinding head assembly provided in an embodiment;

[0027] Figure 4 for Figure 3 A local enlarged schematic diagram of point A in the middle.

[0028] In the figure:

[0029] 100. Robot; 200. Automatic tool changing and grinding head assembly;

[0030] 1. Rotating sleeve; 101. Bell mouth;

[0031] 2. Rotation drive module; 201. Rotation drive mechanism; 202. Belt and pulley assembly;

[0032] 3. Tool sleeve; 301. Elastic clip; 302. Spacing space; 303. Supporting boss;

[0033] 4. Linear drive module; 401. Connecting rod; 402. Linear drive mechanism; 403. Transfer part. DETAILED DESCRIPTION

[0034] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present utility model, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centrally arranged component at the same time.

[0036] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0037] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0038] The utility model provides an automatic tool-changing grinding head assembly and a grinding device, which are suitable for application scenarios of grinding operations, and can realize mechanized tool-changing operations, thereby improving production efficiency and reducing accident risks.

[0039] See also Figure 1 The grinding device includes a robot 100 and an automatic tool-changing grinding head assembly 200 installed at the end of the robot 100. Figure 2-Figure 4 The automatic tool-changing grinding head assembly 200 includes a rotating sleeve 1, a rotating drive module 2, a tool holder 3, and a linear drive module 4.

[0040] The rotary drive module 2 is connected to the rotary sleeve 1 to drive the rotary sleeve 1 to rotate around the axis of the rotary sleeve 1 ; one end of the tool clamp 3 extends into the rotary sleeve 1 ; the linear drive module 4 is connected to the tool clamp 3 .

[0041] Among them, the other end of the tool clamping sleeve 3 has an extended state in which it is driven forward by the linear drive module 4 to extend outward to the outside of the rotating sleeve 1 so as to clamp the grinding head tool, and has an inward state in which it is driven reversely by the linear drive module 4 to retract inward to abut against the inner wall of the rotating sleeve 1.

[0042] The automatic tool-changing grinding head assembly 200 provided in this embodiment, when it is necessary to change the tool, the linear drive module 4 drives the tool sleeve 3 to extend outward to the extended state, and the tool sleeve 3 can release the original grinding head tool and put in a new grinding head tool; then, the linear drive module 4 drives the tool sleeve 3 to retract inward to the retracted state, and the tool sleeve 3 can clamp the new grinding head tool. It should be noted that when in the retracted state, the outer wall of the tool sleeve 3 and the inner wall of the rotating sleeve 1 are in contact with each other, and there is a large maximum static friction force between the two. Under the action of the maximum static friction force, when the rotary drive module 2 drives the rotating sleeve 1 to rotate, the tool sleeve 3 will drive the grinding head tool to rotate together with the rotating sleeve 1, thereby completing the grinding operation.

[0043] Therefore, the automatic tool-changing grinding head assembly 200 provided by the present invention can realize mechanized tool-changing operations, thereby improving production efficiency and reducing accident risks.

[0044] In this embodiment, the tool clamp 3 includes a plurality of elastic clips 301 arranged around the central axis of the tool clamp 3 , and a spacing space 302 is provided between two adjacent elastic clips 301 .

[0045] The rotating sleeve 1 is provided with a bell mouth 101 corresponding to each of the elastic clips 301 for the tool sleeve 3 to pass through, wherein the diameter of the bell mouth 101 gradually increases in a direction away from the linear drive module 4 .

[0046] The outer side of each elastic clip 301 is provided with a supporting boss 303 matching the inner wall of the bell mouth 101 ; wherein the thickness of the supporting boss 303 gradually increases in a direction away from the linear drive module 4 .

[0047] When in the retracted state, the abutting boss 303 can effectively increase the maximum static friction force between the boss 303 and the inner wall of the bell mouth 101 to ensure that the grinding head tool is fully clamped.

[0048] In this embodiment, the rotation driving module 2 includes a rotation driving mechanism 201 and a belt and pulley assembly 202 that transmission-connects the rotation driving mechanism 201 and the rotating sleeve 1 .

[0049] The linear drive module 4 includes a connecting rod 401, a linear drive mechanism 402, and a transfer member 403. One end of the connecting rod 401 extends into the rotating sleeve 1 and is connected to the tool holder 3; the driving end of the linear drive mechanism 402 is rotatably connected to the other end of the connecting rod 401 through the transfer member 403, so as to drive the connecting rod 401 to reciprocate relative to the rotating sleeve 1 in the axial direction.

[0050] It should be noted that the transfer member 403 is rotatably connected to the connecting rod 401, but cannot slide up and down relative to each other. Therefore, when the driving end of the linear drive mechanism 402 is extended or retracted, the transfer member 403 can drive the connecting rod 401 to drive the tool sleeve 3 to extend or retract relative to the rotating sleeve 1; conversely, when the rotary drive module 2 drives the rotating sleeve 1 to drive the tool sleeve 3 to rotate, the connecting rod 401 will rotate relative to the transfer member 403, thereby avoiding the driving end of the linear drive mechanism 402 from interfering with the rotational movement of the tool sleeve 3.

[0051] In summary, the automatic tool-changing grinding head assembly 200 and grinding equipment provided in this embodiment have the following advantages: the linear drive module 4 drives the tool holder 3 to perform a telescopic operation to replace the grinding head tool; the rotary drive module 2 drives the rotary sleeve 1 to rotate to drive the grinding head tool to rotate together, so that mechanized tool changing operations can be realized, thereby improving production efficiency and reducing accident risks.

[0052] It should be noted that the linear drive mechanism mentioned in the present invention can be a cylinder, a hydraulic cylinder, an electric cylinder or a motor screw linear module, etc., and the rotary drive mechanism mentioned can be a brushed motor, a brushless motor, or a rotary cylinder, etc. The present invention does not limit the specific structural forms of the linear drive mechanism and the rotary drive mechanism.

[0053] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0054] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic tool-changing grinding head assembly, characterized in that: include: Rotating sleeve (1); A rotation driving module (2), the rotation driving module (2) being connected to the rotation sleeve (1) and driving the rotation sleeve (1) to rotate around the axis of the rotation sleeve (1); A tool chuck (3), one end of which extends into the rotating sleeve (1); A linear drive module (4), the linear drive module (4) being connected to the tool holder (3); The other end of the tool clamp (3) has an extended state in which it is driven forward by the linear drive module (4) to extend outward to the outside of the rotating sleeve (1) so as to clamp the grinding head tool, and has an inward state in which it is driven reversely by the linear drive module (4) to retract inward to abut against the inner wall of the rotating sleeve (1).

2. The automatic tool-changing grinding head assembly according to claim 1, characterized in that: The tool clamp (3) comprises a plurality of elastic clips (301) arranged around the central axis of the tool clamp (3), and a spacing space (302) is provided between two adjacent elastic clips (301).

3. The automatic tool-changing grinding head assembly according to claim 2, characterized in that: The rotating sleeve (1) is provided with a bell mouth (101) corresponding to the position of each elastic clip (301) for the tool clamping sleeve (3) to pass through, wherein the diameter of the bell mouth (101) gradually increases in a direction away from the linear drive module (4).

4. The automatic tool-changing grinding head assembly according to claim 3, characterized in that: The outer side of each elastic clip (301) is provided with a supporting boss (303) matching the inner wall of the bell mouth (101); wherein the thickness of the supporting boss (303) gradually increases in a direction away from the linear drive module (4).

5. The automatic tool-changing grinding head assembly according to claim 1, characterized in that: The rotary drive module (2) comprises a rotary drive mechanism (201) and a belt and pulley assembly (202) for transmission connection between the rotary drive mechanism (201) and the rotary sleeve (1).

6. The automatic tool-changing grinding head assembly according to claim 1, characterized in that: The linear drive module (4) comprises: A connecting rod (401), one end of which extends into the rotating sleeve (1) and is connected to the tool clamping sleeve (3); A linear drive mechanism (402), wherein a driving end of the linear drive mechanism (402) is connected to the other end of the connecting rod (401), and is used to drive the connecting rod (401) to reciprocate relative to the rotating sleeve (1) in an axial direction.

7. The automatic tool-changing grinding head assembly according to claim 6, characterized in that: A transfer member (403) is also provided between the linear drive mechanism (402) and the connecting rod (401), and the transfer member (403) is rotatably connected to the connecting rod (401).

8. A grinding device, characterized in that: It comprises a robot (100) and an automatic tool-changing grinding head assembly (200) as claimed in any one of claims 1 to 7.

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