Tool changer tool changing mechanism

Abstract

The utility model discloses a tool changer tool changing mechanism which comprises a support and a tool changing mechanism body. The tool changing mechanism comprises a mounting seat, a rotating frame, a clamping piece and an air cylinder, the mounting seat is arranged at the bottom of the support, one end of the rotating frame is rotatably arranged at the bottom of the mounting seat, the clamping piece is connected with the other end of the rotating frame, a clamping part used for clamping a tool is arranged at the end of the clamping piece, and the clamping part has an extending state and a retracting state. The air cylinder is rotatably arranged on the side portion of the mounting base, a piston rod of the air cylinder is connected with the middle of the rotating frame, and the air cylinder drives the rotating frame to rotate along the mounting base so that the clamping part can be switched between the extending state and the retracting state; at least two sets of tool changing mechanisms are arranged, each set of tool changing mechanism is arranged at the bottom of the support, and the clamping parts of each set of tool changing mechanism are located at the same position in the extending state. The tool changing device is simple in structure, capable of rapidly changing tools and high in tool changing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of tool changing, in particular to a tool changing mechanism of a tool magazine. Background Art

[0002] On the CNC machine tools of the machining center, the tool magazine is an indispensable auxiliary functional component of the machining center. The tool magazine is a mechanism for storing tools and auxiliary tools. It is one of the main components of the automatic tool change system. The tool magazine works well with the machining center, which helps to improve the efficiency of the entire CNC machining center.

[0003] The tool changing device in the prior art generally has a complex structure. When changing the tool, the tool changing time is long and the tool cannot be changed quickly, thus affecting the processing efficiency. In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus the present invention was created. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the above technology at least to a certain extent. To this end, the purpose of the utility model is to provide a tool magazine tool changing mechanism, which has a simple structure, can quickly change tools, and has high tool changing efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a tool magazine tool changing mechanism, comprising a bracket and a tool changing mechanism;

[0006] The tool changing mechanism comprises a mounting seat, a rotating frame, a clamping member and a cylinder, wherein the mounting seat is arranged at the bottom of the bracket, one end of the rotating frame is rotatably arranged at the bottom of the mounting seat, the clamping member is connected to the other end of the rotating frame, a clamping part for clamping the tool is arranged at the end of the clamping member, and the clamping part has an extended state and a retracted state, the cylinder is rotatably arranged at the side of the mounting seat, the piston rod of the cylinder is connected to the middle of the rotating frame, and the cylinder drives the rotating frame to rotate along the mounting seat to switch the clamping part between the extended state and the retracted state; the tool changing mechanism is arranged in at least two groups, each group of tool changing mechanisms is arranged at the bottom of the bracket, and the extended state of the clamping part of each group of tool changing mechanisms is at the same position.

[0007] Furthermore, the mounting seat includes a horizontal connecting plate and a vertical connecting plate, the horizontal connecting plate is arranged at the bottom of the bracket, the vertical connecting plate is fixedly connected to the horizontal connecting plate, and the vertical connecting plate is rotatably connected to the rotating frame.

[0008] Further, the rotating frame includes a first rotating rod and a second rotating rod, one end of the first rotating rod is rotatably set on the mounting seat, the middle part of the first rotating rod is connected to the piston rod of the cylinder, the other end of the first rotating rod is rotatably connected to the end of the clamping member, one end of the second rotating rod is rotatably set on the mounting seat, and the other end of the second rotating rod is rotatably connected to the middle part of the clamping member.

[0009] Further, the connection position between the first rotating rod and the mounting seat is a first position, the connection position between the first rotating rod and the clamping member is a second position, the connection position between the second rotating rod and the mounting seat is a third position, and the connection position between the second rotating rod and the clamping member is a fourth position, and the fourth position, the third position, the second position and the first position are distributed in a parallelogram.

[0010] Further, the first rotating rod includes a first left rotating rod and a first right rotating rod, the first left rotating rod is located on the left side of the mounting seat, and the first right rotating rod is located on the right side of the mounting seat; the second rotating rod includes a second left rotating rod and a second right rotating rod, the second left rotating rod is located on the left side of the mounting seat, and the second right rotating rod is located on the right side of the mounting seat.

[0011] Furthermore, the first left rotating rod is provided with a first boss, the first right rotating rod is provided with a second boss, a connecting rod is provided between the second boss and the first boss; and the piston rod of the cylinder is connected to the connecting rod via a fisheye joint.

[0012] Furthermore, a first reinforcing connecting member is arranged between the first left rotating rod and the first right rotating rod, and a second reinforcing connecting member is arranged between the second left rotating rod and the second right rotating rod.

[0013] Furthermore, the tool changing mechanism is arranged in two groups or three groups.

[0014] Further, the clamping member includes a clamping body, a first clamping rod, a first spring, a second clamping rod and a second spring. The clamping body is connected to the rotating frame. The middle part of the first clamping rod can be rotatably connected to one side of the clamping body. A first clamping head is arranged at the end of the first clamping rod. One end of the first spring is arranged on one side of the clamping body. The other end of the first spring is arranged on the first clamping rod. The middle part of the second clamping rod can be rotatably connected to the other side of the clamping body. A second clamping head is arranged at the end of the second clamping rod. The clamping part is formed between the second clamping head and the first clamping head. One end of the second spring is arranged on the other side of the clamping body. The other end of the second spring is arranged on the second clamping rod.

[0015] Furthermore, a first clamping wheel is disposed at the end of the first clamping head, and a second clamping wheel is disposed at the end of the second clamping head.

[0016] Furthermore, a tool holder positioning piece for positioning the tool is provided on the clamping body.

[0017] Furthermore, a first steel ball roller is disposed at one end of the first clamping rod away from the first clamping head, and a second steel ball roller is disposed at one end of the second clamping rod away from the second clamping head.

[0018] After adopting the above structure, the tool magazine tool changing mechanism of the utility model has at least the following beneficial effects:

[0019] First, when in use, multiple tool changing mechanisms are arranged at the bottom of the bracket, so that the extended state of the clamping part of each set of tool changing mechanisms is in the same position and is just below the main shaft. The bracket is connected to a fixed base, so that when the main shaft moves, the bracket will not move. When the main shaft needs to change the tool, the clamping part is switched from the retracted state to the extended state under the action of the cylinder, so that the clamping part tightly clamps the tool on the main shaft, and then the main shaft rises, so that the tool is separated from the main shaft, and the tool changing mechanism retracts under the action of the cylinder. Then, the clamping part of another tool changing mechanism is extended under the action of the cylinder, and the clamping part clamps another tool. After the clamping part is in the extended state, it is just below the main shaft. After the main shaft descends, it is connected with the tool to realize the connection between the tool and the main shaft, and the tool change is completed. Finally, the clamping part retracts again. Therefore, the utility model has a simple structure, can quickly change the tool, and has high tool change efficiency.

[0020] Second, when the clamping part switches state, the cylinder drives the rotating frame to rotate along the mounting seat. The rotating frame, the mounting seat and the clamping piece can form a parallelogram structure. After the rotating frame rotates along the mounting seat, the clamping part is extended or retracted, thereby realizing the switching of the clamping part from the extended state to the retracted state, or from the retracted state to the extended state. Since the extended state of the clamping part of each set of tool changing mechanisms is in the same position, when the spindle changes the tool, the spindle only needs to rise and fall to realize the tool change, and the tool changing process is simple and convenient.

[0021] Third, by setting a horizontal connecting plate and a vertical connecting plate, a connecting hole can be set on the horizontal connecting plate, and then a screw fixing is passed through the connecting hole to fix the horizontal connecting plate to the bottom of the bracket to complete the connection between the mounting base and the bracket, so that the mounting base is firmly fixed to the bottom of the bracket.

[0022] Compared with the prior art, the utility model provides a bracket and multiple tool changing mechanisms, each of which is arranged at the bottom of the bracket, and the extended state of the clamping part of each tool changing mechanism is at the same position. When the spindle changes the tool, after the spindle moves to just above the position, the spindle only needs to rise and fall. With different tool changing mechanisms, fast tool changing can be achieved. The overall structure is simple and the tool changing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the connection between the tool changing mechanism and the bracket according to an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the tool changing mechanism in a retracted state according to an embodiment of the utility model;

[0025] Figure 3It is a structural schematic diagram of another angle of the tool changing mechanism in the retracted state according to an embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the tool changing mechanism in the extended state according to an embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of another angle of the tool changing mechanism in the extended state according to an embodiment of the utility model.

[0028] Description of symbols

[0029] Bracket 1, tool changing mechanism 2, mounting seat 21, horizontal connecting plate 211, vertical connecting plate 212, rotating frame 22, first rotating rod 221, first left rotating rod 2211, first convex seat 22111, first right rotating rod 2212, second convex seat 22121, second rotating rod 222, second left rotating rod 2221, second right rotating rod 2222, connecting rod 2213, first reinforcing connecting member 2214, second Reinforced connecting piece 2215, clamping piece 23, clamping part 231, clamping body 232, tool clamp positioning piece 2321, first clamping rod 233, first clamping head 2331, first clamping wheel 23311, first steel ball roller 2332, first spring 234, second clamping rod 235, second clamping head 2351, second clamping wheel 23511, second steel ball roller 2352, second spring 236, cylinder 24, tool 10. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] like Figures 1 to 5As shown, a tool magazine tool changing mechanism of the utility model comprises a bracket 1 and a tool changing mechanism 2; the tool changing mechanism 2 comprises a mounting seat 21, a rotating frame 22, a clamping member 23 and a cylinder 24, the mounting seat 21 is arranged at the bottom of the bracket 1, one end of the rotating frame 22 is rotatably arranged at the bottom of the mounting seat 21, the clamping member 23 is connected to the other end of the rotating frame 22, and a clamping portion 231 for clamping the tool 10 is arranged at the end of the clamping member 23, and the clamping portion 231 has an extended state and a retracted state, the cylinder 24 is rotatably arranged at the side of the mounting seat 21, the piston rod of the cylinder 24 is connected to the middle of the rotating frame 22, and the cylinder 24 drives the rotating frame 22 to rotate along the mounting seat 21 so that the clamping portion 231 switches between the extended state and the retracted state; the tool changing mechanism 2 is arranged in at least two groups, each group of tool changing mechanisms 2 is arranged at the bottom of the bracket 1, and the extended state of the clamping portion 231 of each group of tool changing mechanisms 2 is at the same position.

[0032] Thus, the tool magazine tool changing mechanism of the utility model is used to set a plurality of tool changing mechanisms 2 at the bottom of the bracket 1, so that the extended state of the clamping part 231 of each group of tool changing mechanisms 2 is in the same position and just below the main shaft. The bracket 1 is connected to the fixed base, so that when the main shaft moves, the bracket 1 will not move. When the main shaft needs to change the tool, the clamping part 231 is switched from the retracted state to the extended state under the action of the cylinder 24, so that the clamping part 231 tightly clamps the tool 10 on the main shaft, and then the main shaft rises, so that the tool 10 is separated from the main shaft, and the tool changing mechanism 2 is retracted under the action of the cylinder 24. Then, the clamping part 231 of another tool changing mechanism 2 is extended under the action of the cylinder 24, and the clamping part 231 clamps another tool 10. After the clamping part 231 is in the extended state, it is just below the main shaft. After the main shaft descends, it is connected with the tool 10, so that the tool 10 is connected with the main shaft, and the tool change is completed. Finally, the clamping part 231 is retracted again. Therefore, the utility model has a simple structure, can quickly change the tool, and has high tool changing efficiency.

[0033] When the clamping part 231 switches state, the cylinder 24 drives the rotating frame 22 to rotate along the mounting seat 21. The rotating frame 22, the mounting seat 21 and the clamping member 23 can form a parallelogram structure. After the rotating frame 22 rotates along the mounting seat 21, the clamping part 231 is extended or retracted, thereby realizing the switching of the clamping part 231 from the extended state to the retracted state, or from the retracted state to the extended state. Since the extended state of the clamping part 231 of each set of tool changing mechanism 2 is in the same position, when the spindle changes the tool, the spindle only needs to rise and fall to realize the tool change, and the tool change process is simple and convenient.

[0034] Optionally, the mounting base 21 includes a horizontal connecting plate 211 and a vertical connecting plate 212, wherein the horizontal connecting plate 211 is arranged at the bottom of the bracket 1, and the vertical connecting plate 212 is fixedly connected to the horizontal connecting plate 211, and the vertical connecting plate 212 is rotatably connected to the rotating frame 22. By arranging the horizontal connecting plate 211 and the vertical connecting plate 212, a connecting hole can be arranged on the horizontal connecting plate 211, and then the horizontal connecting plate 211 can be fixed to the bottom of the bracket 1 after a screw fixing member passes through the connecting hole, thereby completing the connection between the mounting base 21 and the bracket 1, so that the mounting base 21 is firmly fixed to the bottom of the bracket 1.

[0035] In this example, the rotating frame 22 includes a first rotating rod 221 and a second rotating rod 222. One end of the first rotating rod 221 is rotatably arranged on the mounting seat 21, the middle of the first rotating rod 221 is connected to the piston rod of the cylinder 24, and the other end of the first rotating rod 221 is rotatably connected to the end of the clamping member 23. One end of the second rotating rod 222 is rotatably arranged on the mounting seat 21, and the other end of the second rotating rod 222 is rotatably connected to the middle of the clamping member 23. When the clamping portion 231 needs to switch states, the piston rod of the cylinder 24 drives the first rotating rod 221 to rotate along the mounting seat 21, so that the second rotating rod 222 rotates synchronously, so that the clamping portion 231 of the clamping member 23 is extended or retracted.

[0036] Specifically, the connection position of the first rotating rod 221 and the mounting seat 21 is the first position, the connection position of the first rotating rod 221 and the clamping member 23 is the second position, the connection position of the second rotating rod 222 and the mounting seat 21 is the third position, and the connection position of the second rotating rod 222 and the clamping member 23 is the fourth position, and the fourth position, the third position, the second position and the first position are distributed in a parallelogram. In this way, after the clamping portion 231 clamps the tool 10, the clamping portion 231 is more stable when extending or retracting, and the tool 10 is not easy to separate from the clamping portion 231.

[0037] In some examples, the first rotating rod 221 includes a first left rotating rod 2211 and a first right rotating rod 2212, the first left rotating rod 2211 is located on the left side of the mounting seat 21, and the first right rotating rod 2212 is located on the right side of the mounting seat 21; the second rotating rod 222 includes a second left rotating rod 2221 and a second right rotating rod 2222, the second left rotating rod 2221 is located on the left side of the mounting seat 21, and the second right rotating rod 2222 is located on the right side of the mounting seat 21. By providing the first left rotating rod 2211 and the first right rotating rod 2212, and by providing the second left rotating rod 2221 and the second right rotating rod 2222, the stability of the clamping portion 231 when extending or retracting is further improved.

[0038] In this example, the first left rotating rod 2211 is provided with a first boss 22111, the first right rotating rod 2212 is provided with a second boss 22121, and a connecting rod 2213 is provided between the second boss 22121 and the first boss 22111; the piston rod of the cylinder 24 is connected to the connecting rod 2213 through a fisheye joint, so that the piston rod of the cylinder 24 is rotatably connected to the connecting rod 2213, and the cylinder body of the cylinder 24 is rotatably connected to the mounting seat 21 through the seat body, so as to facilitate the application of force to the first rotating rod 221, so as to realize the rotation of the first rotating rod 221 along the mounting seat 21.

[0039] In a preferred embodiment of the utility model, a first reinforcing connector 2214 is provided between the first left rotating rod 2211 and the first right rotating rod 2212, and a second reinforcing connector 2215 is provided between the second left rotating rod 2221 and the second right rotating rod 2222, so that the overall strength of the rotating frame 22 is greater. In this example, the tool changing mechanism 2 is provided with two or three groups, and the corresponding number of groups can be provided according to actual needs, and the installation process of the tool changing mechanism 2 is relatively convenient.

[0040] like Figure 4 As shown, in a preferred embodiment of the utility model, the clamping member 23 includes a clamping body 232, a first clamping rod 233, a first spring 234, a second clamping rod 235 and a second spring 236. The clamping body 232 is connected to the rotating frame 22. The middle part of the first clamping rod 233 is rotatably connected to one side of the clamping body 232. A first clamping head 2331 is arranged at the end of the first clamping rod 233. One end of the first spring 234 is arranged at one side of the clamping body 232. The other end of the first spring 234 is arranged on the first clamping rod 233. The middle part of the second clamping rod 235 is rotatably connected to the other side of the clamping body 232. A second clamping head 2351 is arranged at the end of the second clamping rod 235. The clamping portion 231 is formed between the second clamping head 2351 and the first clamping head 2331. One end of the second spring 236 is arranged at the other side of the clamping body 232. The other end of the second spring 236 is arranged on the second clamping rod 235. The first clamp 2331 and the second clamp 2351 are moved closer to each other under the action of the first spring 234 and the second spring 236 , so as to clamp the tool 10 .

[0041] In this example, a first clamping wheel 23311 is provided at the end of the first clamping head 2331, and a second clamping wheel 23511 is provided at the end of the second clamping head 2351. By providing the second clamping wheel 23511 and the first clamping wheel 23311, when the clamping part 231 clamps the tool 10 on the spindle, the second clamping wheel 23511 moves along one side of the tool 10, and the first clamping wheel 23311 moves along the other side of the tool 10, thereby preventing damage to the tool 10. A tool clamp positioning piece 2321 for positioning the tool 10 is provided on the clamping body 232 to position the tool 10.

[0042] In this example, a first steel ball roller 2332 is set at one end of the first clamping rod 233 away from the first clamp 2331, and a second steel ball roller 2352 is set at one end of the second clamping rod 235 away from the second clamp 2351. In this way, the first clamping rod 233 and the second clamping rod 235 can be prevented from directly colliding with the clamping body 232 and damaging the clamping body 232.

[0043] Compared with the prior art, the utility model provides a bracket 1 and multiple sets of tool changing mechanisms 2, each set of tool changing mechanisms 2 is arranged at the bottom of the bracket 1, and the extended state of the clamping portion 231 of each set of tool changing mechanisms 2 is at the same position. When the spindle changes the tool, after the spindle moves to just above the position, the spindle only needs to rise and fall. With different tool changing mechanisms 2, fast tool changing can be achieved. The overall structure is simple and the tool changing efficiency is high.

[0044] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A tool magazine tool changing mechanism, characterized in that: Including a bracket and a tool changing mechanism; The tool changing mechanism comprises a mounting seat, a rotating frame, a clamping member and a cylinder, wherein the mounting seat is arranged at the bottom of the bracket, one end of the rotating frame is rotatably arranged at the bottom of the mounting seat, the clamping member is connected to the other end of the rotating frame, a clamping part for clamping the tool is arranged at the end of the clamping member, and the clamping part has an extended state and a retracted state, the cylinder is rotatably arranged at the side of the mounting seat, the piston rod of the cylinder is connected to the middle of the rotating frame, and the cylinder drives the rotating frame to rotate along the mounting seat to switch the clamping part between the extended state and the retracted state; the tool changing mechanism is arranged in at least two groups, each group of tool changing mechanisms is arranged at the bottom of the bracket, and the extended state of the clamping part of each group of tool changing mechanisms is at the same position.

2. The tool magazine tool changing mechanism according to claim 1, characterized in that: The mounting seat comprises a horizontal connecting plate and a vertical connecting plate, wherein the horizontal connecting plate is arranged at the bottom of the bracket, the vertical connecting plate is fixedly connected to the horizontal connecting plate, and the vertical connecting plate is rotatably connected to the rotating frame.

3. The tool magazine tool changing mechanism according to claim 1, characterized in that: The rotating frame includes a first rotating rod and a second rotating rod, one end of the first rotating rod is rotatably set on the mounting seat, the middle part of the first rotating rod is connected to the piston rod of the cylinder, the other end of the first rotating rod is rotatably connected to the end of the clamping member, one end of the second rotating rod is rotatably set on the mounting seat, and the other end of the second rotating rod is rotatably connected to the middle part of the clamping member.

4. The tool magazine tool changing mechanism according to claim 3, characterized in that: The connection position between the first rotating rod and the mounting seat is the first position, the connection position between the first rotating rod and the clamping member is the second position, the connection position between the second rotating rod and the mounting seat is the third position, and the connection position between the second rotating rod and the clamping member is the fourth position. The fourth position, the third position, the second position and the first position are distributed in a parallelogram.

5. The tool magazine tool changing mechanism according to claim 3, characterized in that: The first rotating rod includes a first left rotating rod and a first right rotating rod, the first left rotating rod is located on the left side of the mounting seat, and the first right rotating rod is located on the right side of the mounting seat; the second rotating rod includes a second left rotating rod and a second right rotating rod, the second left rotating rod is located on the left side of the mounting seat, and the second right rotating rod is located on the right side of the mounting seat.

6. The tool magazine tool changing mechanism according to claim 5, characterized in that: The first left rotating rod is provided with a first convex seat, the first right rotating rod is provided with a second convex seat, a connecting rod is provided between the second convex seat and the first convex seat; the piston rod of the cylinder is connected to the connecting rod through a fisheye joint.

7. The tool magazine tool changing mechanism according to claim 5, characterized in that: A first reinforcing connecting member is arranged between the first left rotating rod and the first right rotating rod, and a second reinforcing connecting member is arranged between the second left rotating rod and the second right rotating rod.

8. The tool magazine tool changing mechanism according to claim 1, characterized in that: The clamping member includes a clamping body, a first clamping rod, a first spring, a second clamping rod and a second spring. The clamping body is connected to the rotating frame. The middle part of the first clamping rod can be rotatably connected to one side of the clamping body. A first clamping head is arranged at the end of the first clamping rod. One end of the first spring is arranged at one side of the clamping body. The other end of the first spring is arranged on the first clamping rod. The middle part of the second clamping rod can be rotatably connected to the other side of the clamping body. A second clamping head is arranged at the end of the second clamping rod. The clamping part is formed between the second clamping head and the first clamping head. One end of the second spring is arranged at the other side of the clamping body. The other end of the second spring is arranged on the second clamping rod.

9. The tool magazine tool changing mechanism according to claim 8, characterized in that: A first clamping wheel is disposed at the end of the first clamping head, and a second clamping wheel is disposed at the end of the second clamping head.

10. The tool magazine tool changing mechanism according to claim 8, characterized in that: The clamping body is provided with a tool holder positioning piece for positioning the tool.

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