Automatic clamping cutter placing mechanism

Abstract

The utility model provides an automatic position-clamping cutter placing mechanism, which comprises a connecting plate, a cutter clamping bracket assembly, a cutter and a cutter clamping assembly, the cutter clamping assembly comprises a sleeve shell, the inner wall of the sleeve shell is connected with a spring in a sliding mode, a cutter holder is inserted into a cutter placing groove in the using process, and the diameter of the cutter placing groove is slightly larger than that of the cutter holder. After the tool apron is placed in the inner wall of the tool placing groove, in the installation process of the tool apron, the clamping groove formed in the outer wall of the tool apron extrudes the clamping bead, so that the clamping bead is shrunk into the sleeve shell and extrudes the spring, the elastic potential energy of the spring is increased, and then the clamping bead is pushed into the clamping groove formed in the outer wall of the tool apron through the elastic potential energy of the spring; the clamping ball can abut against one side of the tool apron so that the tool apron can move horizontally towards the other side, then the limiting clamping plate can be clamped into the limiting groove in one side of the tool apron, at the moment, the tool apron is positioned and fixed, the tool apron can be conveniently installed and replaced, the tool apron can be prevented from deviating, and a follow-up tool taking mechanical arm can conveniently conduct rapid alignment.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe tool replacement, in particular to an automatic clamping tool placing mechanism. Background Art

[0002] With the development of technology, compound machining is one of the most popular machining processes in the international mechanical machining field at present. It is an advanced manufacturing technology. Compound machining means realizing several different machining processes on one machine tool. The most widely used and most difficult compound machining is turning-milling compound machining. A turning-milling compound machining center is equivalent to the combination of a CNC lathe and a machining center.

[0003] However, after the machine tool is used for a period of time, the tool wears, reducing the working effect, and the tool needs to be replaced. Most of the existing tool changing mechanisms are complex in operation when replacing the tool head, and the tool changing effect is low. The fixing effect of the tool is poor, which is inconvenient for people to use and has low practicability. Moreover, after the tool is moved and stored by the manipulator, there will inevitably be some deflections, which causes the tool to deflect its position. When taking the tool next time, the tool taking manipulator that adsorbs the tool cannot perform quick alignment. Some tool holders take the tool in a direct downward insertion manner. After the tool deflects, it is easy to form a jamming phenomenon. If this continues for a long time, it is easy to damage the connecting part of the tool holder, that is, the position needs to be adjusted when taking the tool, resulting in an increase in the tool changing time. Summary of the Invention

[0004] In order to solve the above problems, the utility model proposes an automatic clamping tool placing mechanism to more precisely solve the problems of inconvenient tool replacement, poor fixing effect and low practicability described above.

[0005] The utility model is realized through the following technical solutions:

[0006] The utility model proposes an automatic clamping tool placing mechanism, which includes a connecting plate, a tool clamping bracket assembly, a tool and a tool clamping assembly. The tool clamping assembly includes a sleeve. A spring is slidably connected to the inner wall of the sleeve. A clamping ball is slidably connected to one end inner wall of the sleeve, and one end of the clamping ball located in the inner wall of the sleeve is connected to the spring. The tool is slidably connected to the inner wall of the tool clamping bracket assembly, and the outer wall of the tool is movably connected to the clamping ball.

[0007] Further, the side of the clamping ball away from the sleeve is movably connected to the outer wall of the tool holder. A limiting block is welded and fixed to one side of the clamping ball located in the inner wall of the sleeve, and the diameter of the limiting block is greater than the diameter of the connection between the clamping ball and the sleeve.

[0008] Furthermore, a tool - placing groove is formed at the top of the tool - jamming bracket assembly. The tool includes a tool holder, and a tool tip is clamped inside the inner wall of the tool holder. The outer wall of the tool holder is slidably connected to the inner wall of the tool - placing groove. The inner diameter of the inner wall of the tool - placing groove is slightly larger than the diameter of the tool holder. The tool - jamming component is located in the inner wall of the tool - placing groove.

[0009] Furthermore, a limiting groove is formed on the outer wall of the tool holder. A limiting clamping plate is fixedly connected to the inner wall of the tool - placing groove, and the limiting clamping plate is slidably connected to the inner wall of the limiting groove formed on the outer wall of the tool.

[0010] Furthermore, a clamping groove is formed at the position where the outer wall of the tool holder is connected to the clamping bead, and the inner wall of the clamping groove is slidably connected to the outer wall of the clamping bead.

[0011] Furthermore, an installation bracket is fixedly connected to the bottom of the tool - jamming bracket assembly. A limiting plate is fixedly connected to the bottom of the installation bracket, and the inner wall of the limiting plate is threadedly connected to the outer edge of the lead screw of the lathe.

[0012] Furthermore, connecting plates are fixedly connected to both ends of the bottom of the connecting plate. A sliding groove is formed in the inner wall of the connecting plate, and the inner wall of the sliding groove is slidably connected to the outer wall of the limiting sliding plate of the lathe.

[0013] Furthermore, an annular supporting tray is fixedly connected to the inner wall of the tool - placing groove. The inner diameter of the inner wall of the annular supporting tray is smaller than the diameter of the tool holder, and the annular supporting tray is movably connected to the tool holder.

[0014] The beneficial effects of the present utility model: During the use process, the tool holder is inserted into the tool - placing groove. Since the diameter of the tool - placing groove is slightly larger than the diameter of the tool holder, after the tool holder is placed into the inner wall of the tool - placing groove, during the installation of the tool holder, the clamping groove formed on the outer wall of the tool holder squeezes the clamping bead, causing the clamping bead to contract into the sleeve and squeeze the spring, thereby increasing the elastic potential energy of the spring. Then, using the elastic potential energy of the spring, the clamping bead is pushed into the clamping groove formed on the outer wall of the tool holder. The clamping bead will then press against one side of the tool holder, causing the tool holder to translate towards the other side. Then, the limiting clamping plate will snap into the limiting groove on one side of the tool holder. At this time, the tool holder is positioned and fixed, which is convenient for installing and replacing the tool holder, and can prevent the tool holder from shifting, facilitating the subsequent tool - picking manipulator to quickly align.

[0015] The problems of tool offset and inconvenient fixing and replacement of the tool proposed by the present utility model are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three - dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0018] Figure 3 Schematic diagram of part A in Figure 2 the present utility model;

[0019] Figure 4 Top view schematic diagram of the present utility model;

[0020] Figure 5 Schematic diagram of part B in Figure 4 the present utility model.

[0021] The reference signs are as follows:

[0022] 1. Connecting plate; 2. Mounting bracket; 3. Limiting plate; 4. Knife clamping bracket assembly; 5. Tool; 501. Tool holder; 502. Tool bit; 6. Tool placing groove; 7. Knife clamping assembly; 701. Sheath; 702. Spring; 703. Ball; 8. Limiting clamping plate; 9. Annular supporting plate. Detailed implementation manners

[0023] To more clearly and completely illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the accompanying drawings.

[0024] Please refer to Figure 1 - Figure 5 , the present utility model provides an automatic positioning tool placing mechanism, including a connecting plate 1, a knife clamping bracket assembly 4, a tool 5 and a knife clamping assembly 7. It is characterized in that the knife clamping assembly 7 includes a sheath 701, a spring 702 is slidably connected to the inner wall of the sheath 701, a ball 703 is slidably connected to one end inner wall of the sheath 701, and one end of the ball 703 located in the inner wall of the sheath 701 is connected to the spring 702. The tool 5 is slidably connected to the inner wall of the knife clamping bracket assembly 4, and the outer wall of the tool 5 is movably connected to the ball 703.

[0025] One side of the ball 703 away from the sheath 701 is movably connected to the outer wall of the tool holder 501. A limiting block is fixedly welded to one side of the ball 703 located in the inner wall of the sheath 701, and the diameter of the limiting block is larger than the diameter of the connection between the ball 703 and the sheath 701, so as to prevent the ball 703 from detaching from the inner wall of the sheath 701, fix and limit the ball 703, and maintain the stability of the device during use.

[0026] A tool placing groove 6 is opened at the top of the knife clamping bracket assembly 4. The tool 5 includes a tool holder 501, and a tool bit 502 is clamped to the inner wall of the tool holder 501. The outer wall of the tool holder 501 is slidably connected to the inner wall of the tool placing groove 6. The inner wall diameter of the tool placing groove 6 is slightly larger than the diameter of the tool holder 501. The knife clamping assembly 7 is located in the inner wall of the tool placing groove 6. The tool holder 501 is placed into the inner wall of the tool placing groove 6, reducing the collision between the tool holder 501 and the tool placing groove 6 during installation, and enabling the tool holder 501 to be adjusted within a small range.

[0027] The outer wall of the tool holder 501 is provided with a limiting groove. The inner wall of the tool placing groove 6 is fixedly connected with a limiting clamping plate 8, and the limiting clamping plate 8 is slidably connected with the inner wall of the limiting groove opened on the outer wall of the tool 5. The tool holder 501 is placed in the inner wall of the tool placing groove 6. By means of the clamping connection between the limiting clamping plate 8 and the limiting groove, the limiting of the tool holder 501 is realized, preventing the tool holder 501 from shifting in position and rotating, which is convenient for the robotic arm to perform positioning.

[0028] A clamping groove is opened at the position where the outer wall of the tool holder 501 is connected with the clamping ball 703, and the inner wall of the clamping groove is slidably connected with the outer wall of the clamping ball 703. Through the elastic potential energy of the spring 702, the clamping ball 703 can be sent into the clamping groove opened on the outer wall of the tool holder 501, realizing the tightening of the tool holder 501 while being able to limit and fix the tool holder 501, improving the fixing effect of the tool holder 501.

[0029] The bottom of the tool clamping bracket assembly 4 is fixedly connected with a mounting bracket 2. The bottom of the mounting bracket 2 is fixedly connected with a limiting plate 3, and the inner wall of the limiting plate 3 is threadedly connected with the outer edge of the lead screw of the lathe. When the lead screw rotates, it drives the limiting plate 3 and the tool clamping bracket assembly 4 to move, realizing the adjustment of the position of the tool clamping bracket assembly 4.

[0030] Both ends of the bottom of the connecting plate 1 are fixedly connected with a connecting plate 1. The inner wall of the connecting plate 1 is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected with the outer wall of the limiting sliding plate of the lathe, reducing the frictional loss between the connecting plate 1 and the lathe and being able to maintain the stability of the connecting plate 1 during the moving process.

[0031] The inner wall of the tool placing groove 6 is fixedly connected with an annular supporting tray 9, and the diameter of the inner wall of the annular supporting tray 9 is smaller than the diameter of the tool holder 501. The annular supporting tray 9 is movably connected with the tool holder 501. The tool holder 501 is placed on the top of the annular supporting tray 9 to prevent the tool holder 501 from slipping off the inner wall of the tool placing groove 6.

[0032] In this embodiment, the tool holder 501 is inserted into the tool placing groove 6. Since the diameter of the tool placing groove 6 is slightly larger than the diameter of the tool holder 501, after the tool holder 501 is placed in the inner wall of the tool placing groove 6, during the installation process of the tool holder 501, the clamping groove opened on the outer wall of the tool holder 501 presses the clamping ball 703, causing the clamping ball 703 to contract and enter the sleeve 701 and compress the spring 702, thereby increasing the elastic potential energy of the spring 702. Then, by using the elastic potential energy of the spring 702, the clamping ball 703 is pushed into the clamping groove opened on the outer wall of the tool holder 501. The clamping ball 703 will then press one side of the tool holder 501, causing the tool holder 501 to translate towards the other side. Then, the limiting clamping plate 8 will snap into the limiting groove on one side of the tool holder 501. At this time, the tool holder 501 is positioned and fixed, which is convenient for the installation and replacement of the tool holder 501, and can prevent the tool holder 501 from shifting, facilitating the subsequent tool picking robotic arm to perform quick alignment.

[0033] Certainly, the present utility model may also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work all fall within the scope protected by the present utility model.

Claims

1. An automatic positioning and knife placing mechanism, comprising a connecting plate, a knife clamping bracket assembly, a knife and a knife clamping assembly, characterized in that: The knife clamping assembly includes a sleeve shell, the inner wall of the sleeve shell is slidably connected to a spring, the inner wall of one end of the sleeve shell is slidably connected to a clamping bead, and the end of the clamping bead located in the inner wall of the sleeve shell is connected to the spring, the top of the knife clamping bracket assembly is provided with a knife placing groove, the tool includes a knife seat, and the inner wall of the knife seat is clamped with a knife head, the outer wall of the knife seat is slidably connected to the inner wall of the knife placing groove, the inner wall diameter of the knife placing groove is slightly larger than the diameter of the knife seat, and the knife clamping assembly is located in the inner wall of the knife placing groove.

2. The automatic positioning and knife placing mechanism according to claim 1, characterized in that: The inner wall of the knife holder assembly is slidably connected with a knife, and the outer wall of the knife is movably connected with the clamping bead.

3. The automatic positioning and knife placing mechanism according to claim 1, characterized in that: The side of the clamping bead away from the sleeve shell is movably connected to the outer wall of the knife seat, and a limiting block is welded and fixed on the side of the clamping bead located in the inner wall of the sleeve shell, and the diameter of the limiting block is larger than the diameter of the connection between the clamping bead and the sleeve shell.

4. The automatic positioning and knife placing mechanism according to claim 2, characterized in that: The outer wall of the tool seat is provided with a limiting groove, the inner wall of the tool placement groove is fixedly connected with a limiting clamping plate, and the limiting clamping plate is slidably connected with the inner wall of the limiting groove provided on the outer wall of the tool.

5. The automatic positioning and knife placing mechanism according to claim 2, characterized in that: A clamping groove is provided at a position where the outer wall of the knife seat is connected with the clamping bead, and the inner wall of the clamping groove is slidably connected with the outer wall of the clamping bead.

6. The automatic positioning and knife placing mechanism according to claim 1, characterized in that: The bottom of the tool holder bracket assembly is fixedly connected with a mounting frame, the bottom of the mounting frame is fixedly connected with a limiting plate, and the inner wall of the limiting plate is threadedly connected with the outer edge of the screw rod of the lathe.

7. The automatic positioning and knife placing mechanism according to claim 1, characterized in that: The two ends of the bottom of the connecting plate are fixedly connected with connecting plates, the inner wall of the connecting plate is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected with the outer wall of the limiting slide plate of the lathe.

8. The automatic positioning and knife placing mechanism according to claim 2, characterized in that: The inner wall of the knife slot is fixedly connected with an annular support plate, and the diameter of the inner wall of the annular support plate is smaller than the diameter of the knife seat, and the annular support plate is movably connected to the knife seat.

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