CN212350408U - Quick tool changing clamp for lathe - Google Patents
Quick tool changing clamp for lathe Download PDFInfo
- Publication number
- CN212350408U CN212350408U CN202021194726.0U CN202021194726U CN212350408U CN 212350408 U CN212350408 U CN 212350408U CN 202021194726 U CN202021194726 U CN 202021194726U CN 212350408 U CN212350408 U CN 212350408U
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- dovetail groove
- cutter
- guide strip
- tool rest
- lathe
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Abstract
The utility model discloses a quick tool changing anchor clamps of lathe, including the knife rest, its characterized in that: the tool rest main body is a square tool rest, and at least one side surface of the square tool rest is provided with a vertically arranged guide strip matched with the dovetail groove; the dovetail groove positioning structure is arranged on one side of a dovetail groove of the dovetail groove cutter holder and comprises a screw hole, a fixing bolt, a positioning block and an adjustable nut, one end of the fixing bolt is arranged in the screw hole, the other end of the fixing bolt is provided with the positioning block and the adjustable nut, the dovetail groove is clamped in the guide strip, and one side of the positioning block is positioned at the top end of the guide strip to realize positioning; a cutter mounting groove is formed in the other side of the dovetail groove cutter holder, and a cutter is fixed in the cutter mounting groove through a locking bolt; and a locking structure is arranged, and locking is realized after the dovetail groove cutter seat is arranged on the guide strip. The utility model discloses a quick tool changing can guarantee the fixed length and the center height of every cutter, and repeated positioning accuracy is high.
Description
Technical Field
The utility model relates to a machine tool accessory, concretely relates to quick tool changing anchor clamps for lathe.
Background
In the prior art, a common lathe uses a square tool rest, and only 4 cutters can be installed, as shown in figure 1. Every sword has 2 ~ 3 bolt fixings, and in the processing of reality, different parts need different cutters, need often tighten and become flexible these bolts and change different cutters. For small-batch multi-variety lathe processing enterprises, tools need to be changed 30 times on average per shift, 5 minutes are needed for changing one tool on average per shift, and the time for changing the tools is 150 minutes on average per shift, so that the time is wasted, the production efficiency is reduced, and the production cost is improved.
Meanwhile, the center height of the cutter and the reserved length of the cutter need to be readjusted every time the cutter is replaced. When the center height of the cutter is adjusted, the center line of the cutter is easily adjusted to be higher than that of a part or the center line of the cutter is adjusted to be lower than that of the part, a boss is arranged at the center position of the part during processing, the part is scrapped, and the quality qualified rate of the part is reduced.
The Chinese patent application CN104551056A discloses a multi-station tool clamping device for a numerical control lathe, wherein a clamping groove is formed in the side surface of a square tool rest along the circumferential direction, a thread fixing hole communicated with the clamping groove is formed in the top surface of the square tool rest, a multi-station tool apron is fixed in the clamping groove by penetrating through the thread fixing hole through a screw, and a tool is mounted on the multi-station tool apron. Although the bolt on the square tool rest does not need to be screwed and loosened, only 4 cutters can be installed, and when the cutter is replaced, the center height of the cutter in the multi-station tool apron needs to be adjusted, so that the problem cannot be solved.
Disclosure of Invention
The utility model aims at providing a quick tool changing anchor clamps of lathe does not need adjustment center height when the tool changing to realize quick tool changing.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a lathe quick tool changing clamp comprises a tool rest, wherein the tool rest main body is a square tool rest, and at least one side surface of the square tool rest is provided with a vertically arranged guide strip matched with a dovetail groove; the dovetail groove positioning structure is arranged on one side of a dovetail groove of the dovetail groove cutter holder and comprises a screw hole, a fixing bolt, a positioning block and an adjustable nut, one end of the fixing bolt is arranged in the screw hole, the other end of the fixing bolt is provided with the positioning block and the adjustable nut, the dovetail groove is clamped in the guide strip, and one side of the positioning block is positioned at the top end of the guide strip to realize positioning; a cutter mounting groove is formed in the other side of the dovetail groove cutter holder, and a cutter is fixed in the cutter mounting groove through a locking bolt; and a locking structure is arranged, and locking is realized after the dovetail groove cutter seat is arranged on the guide strip.
In the technical scheme, the distance between the positioning block and the cutter on the dovetail groove cutter seat is adjusted in advance through the adjustable nut, so that when the cutter seat is installed on the cutter rest, the center height of the cutter is located at a required position, and when the dovetail groove cutter seat with the cutter is used, the dovetail groove cutter seat with the cutter is directly placed on the guide strip of the cutter rest, the positioning block can limit the position, the center height of the cutter is guaranteed to be unchanged, and then the locking structure locks the cutter.
In the technical scheme, the locking structure is that the square tool rest is of a hollow structure and is provided with a compression rod, the compression rod is fixedly connected with an installation block inside the square tool rest through a central rotating shaft, and the installation block is connected with a clamping piece which pushes a guide strip wall to fix the guide strip and the dovetail groove by friction force.
In the technical scheme, 2 guide strips are arranged and are respectively arranged on two side surfaces of the square tool rest.
Preferably, the guide strips are arranged on two adjacent side surfaces of the square tool rest.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model discloses a set up the dovetail blade holder, cooperate location structure, can predetermine the center height of cutter, thus when the tool changing, only need loosen the lock solid structure, go into the guide bar with the dovetail blade holder card, lock solid again can, change a cutter only needs 20 seconds, change a cutter can practice thrift 4 minutes 40 seconds each time, reduced the waste of time, improved production efficiency;
2. the center height of the cutter is predetermined, so that the problem of processing quality caused by inaccurate temporary adjustment during cutter changing can be solved;
3. adopt the utility model discloses a structure can guarantee the fixed length of every cutter, need not readjust, and adopts self-align structure, and the repeated positioning accuracy is high.
Drawings
FIG. 1 is a schematic view of a prior art square tool holder;
fig. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a top view of the embodiment;
fig. 4 is a sectional view of the embodiment.
Wherein: 1. a tool holder; 2. a cutter; 3. a guide strip; 4. a dovetail groove tool apron; 5. positioning blocks; 6. fixing the bolt; 7. an adjustable nut; 8. locking the bolt; 9. a hold down bar; 10. a central rotating shaft; 11. mounting blocks; 12. and a fastener.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the first embodiment is as follows:
referring to the attached drawings 2 to 4, the lathe quick tool changing clamp comprises a tool rest 1 and a dovetail groove tool apron 4, wherein the main body of the tool rest 1 is a square tool rest, and two adjacent side surfaces of the square tool rest are respectively provided with a vertically arranged guide strip 3 matched with a dovetail groove; the dovetail groove type dovetail groove cutting tool is provided with a dovetail groove cutting tool holder 4, one side of a dovetail groove of the dovetail groove cutting tool holder 4 is provided with a positioning structure, the positioning structure is composed of a screw hole, a fixing bolt 6, a positioning block 5 and an adjustable nut 7, one end of the fixing bolt 6 is installed in the screw hole, the other end of the fixing bolt is provided with the positioning block 5 and the adjustable nut 7, the dovetail groove is clamped in the guide strip 3, and one side of the positioning block 5 is located at; and a cutter mounting groove is formed in the other side of the dovetail groove cutter holder 4, and the cutter 2 is fixed in the cutter mounting groove through a locking bolt 8.
The square tool rest is of a hollow structure and is provided with a pressing rod 9, the pressing rod 9 is fixedly connected with an installation block 11 in the square tool rest through a central rotating shaft 10, a clamping piece 12 is connected to the installation block 11, and the clamping piece pushes a guide strip wall to enable the guide strip and a dovetail groove to be fixed by friction force.
When in use, the method comprises the following steps:
1. the preparation process comprises the following steps:
the cutter is arranged on the dovetail groove cutter seat and is locked by the cutter locking bolt. The center height of the cutter is adjusted through the adjustable nut, and the positioning block is fixed through the adjusting nut.
2. The tool changing process:
the pressing rod is loosened, the dovetail groove tool apron with the tool is placed in a channel of the dovetail groove tool rest through the dovetail groove tool rest, the dovetail groove tool apron with the tool naturally falls to the positioning block to be positioned on the dovetail groove tool rest, the pressing rod is locked, and tool changing is completed. And (4) after the cutter is machined, loosening the pressing rod, and taking down the dovetail groove cutter holder. And continues to install the next tool.
In the embodiment, the cutters required during machining are respectively arranged on the dovetail groove cutter seats, and the center height of the cutters is adjusted in advance, so that the cutters can be simply, quickly and time-saving to install. Originally, change a cutter and need 5 minutes, adopt this kind of tool changing mode now, change a cutter and only need 20 seconds, change a cutter at every turn and can practice thrift 4 minutes 40 seconds, reduced the waste of time, improved production efficiency.
Claims (4)
1. The utility model provides a quick tool changing clamp of lathe, includes the knife rest, its characterized in that: the tool rest main body is a square tool rest, and at least one side surface of the square tool rest is provided with a vertically arranged guide strip matched with the dovetail groove; the dovetail groove positioning structure is arranged on one side of a dovetail groove of the dovetail groove cutter holder and comprises a screw hole, a fixing bolt, a positioning block and an adjustable nut, one end of the fixing bolt is arranged in the screw hole, the other end of the fixing bolt is provided with the positioning block and the adjustable nut, the dovetail groove is clamped in the guide strip, and one side of the positioning block is positioned at the top end of the guide strip to realize positioning; a cutter mounting groove is formed in the other side of the dovetail groove cutter holder, and a cutter is fixed in the cutter mounting groove through a locking bolt; and a locking structure is arranged, and locking is realized after the dovetail groove cutter seat is arranged on the guide strip.
2. The lathe quick tool changing jig according to claim 1, characterized in that: the locking structure is characterized in that the square tool rest is of a hollow structure and is provided with a compression rod, the compression rod is fixedly connected with an installation block inside the square tool rest through a central rotating shaft, a clamping piece is connected to the installation block, and the clamping piece pushes a guide strip wall to enable the guide strip and a dovetail groove to be fixed by friction force.
3. The lathe quick tool changing jig according to claim 1, characterized in that: and 2 guide strips are arranged and are respectively arranged on two side surfaces of the square tool rest.
4. The lathe quick tool changing jig according to claim 3, characterized in that: the guide strips are arranged on two adjacent side surfaces of the square tool rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194726.0U CN212350408U (en) | 2020-06-24 | 2020-06-24 | Quick tool changing clamp for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194726.0U CN212350408U (en) | 2020-06-24 | 2020-06-24 | Quick tool changing clamp for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212350408U true CN212350408U (en) | 2021-01-15 |
Family
ID=74151056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021194726.0U Active CN212350408U (en) | 2020-06-24 | 2020-06-24 | Quick tool changing clamp for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212350408U (en) |
-
2020
- 2020-06-24 CN CN202021194726.0U patent/CN212350408U/en active Active
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