Combined turning tool structure for double-tool head of general lathe

Abstract

This utility model discloses a dual-tool head combination lathe structure for a conventional lathe, relating to the field of lathe tools. It includes a primary tool holder, with a secondary tool holder mounted on its front end via a pivot. The primary and secondary tool holders can rotate relative to each other. A sliding sleeve is fitted at the connection point of the primary and secondary tool holders, thus fixing them as a single unit. A first mounting groove is formed at the front end of the secondary tool holder, and a tool body is housed within the first mounting groove. Both ends of the tool body extend to opposite sides of the first mounting groove, and each end of the tool body is equipped with an insert. This utility model connects the primary and secondary tool holders via a pivot. By sliding the sliding sleeve backward and then rotating the secondary tool holder along with the tool body 180°, the positions of the two inserts can be exchanged. This method of adjusting the direction of the inserts allows for more convenient alternating machining of the workpiece using two inserts.

Description

Technical Field

[0001] This utility model relates to the field of lathe tools, specifically a structure for a conventional lathe double-head combined lathe tool. Background Technology

[0002] A lathe is a common machining equipment. The workpiece being machined rotates at high speed under the drive of the lathe and comes into contact with the cutting tool. During this process, the cutting tool removes the excess part of the workpiece. In addition to machining the surface of the workpiece, the cutting tool can also machine the inner wall of hollow workpieces.

[0003] When machining hollow workpieces, the machining of the workpiece surface and inner wall needs to be carried out alternately to avoid deformation during the machining process. In order to avoid frequent tool changes, combined turning tools have emerged in the prior art, such as the double-head combined turning tool structure for ordinary lathes with publication number CN211915537U.

[0004] During the machining process on a lathe, the workpiece is located on one side of the cutting tool. In the existing technology, although both ends of the tool body are equipped with external turning tips and internal turning tips, it is not possible to adjust the direction of the two tips during use. If the workpiece is located on the side where the external turning tip is located, the use of the internal turning tip is inconvenient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dual-blade combination turning tool structure for ordinary lathes. By connecting the primary and secondary cutting tool holders via a rotating shaft, the secondary cutting tool holder, along with the tool body, can rotate 180°, thereby exchanging the positions of the two cutting tools. This method of adjusting the direction of the cutting tools makes it more convenient to use the two cutting tools alternately for machining the workpiece, effectively solving the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a conventional lathe double-head combined turning tool structure, including a primary turning tool holder, a secondary turning tool holder is provided at the front end of the primary turning tool holder via a rotating shaft, the primary turning tool holder and the secondary turning tool holder can rotate relative to each other, and a sliding sleeve is fitted at the outer end of the connection between the primary turning tool holder and the secondary turning tool holder, thereby fixing the two as a whole during use;

[0007] The front end of the secondary lathe tool holder is provided with a first mounting groove, and a tool body is provided inside the first mounting groove. The two ends of the tool body extend to both sides of the first mounting groove, and each end of the tool body is provided with a detachable blade. The two blades are an outer diameter tool head and an inner diameter tool head, which are used to process the outer surface and inner wall of the workpiece, respectively.

[0008] Furthermore, a second mounting groove is provided at both ends of the blade body, and the rear end of the blade is embedded in the second mounting groove and fixedly connected to the blade body by bolts, which facilitates the disassembly and replacement of the blade.

[0009] Furthermore, a stop block is provided inside the first mounting groove. The stop block is located on the front side of the tool body and is fixedly connected to the secondary cutting tool bar by bolts.

[0010] Furthermore, the outer end of the cutter body contacts the inner wall of the first mounting groove and the rear side of the stop block, so that the cutter body can only slide left and right along a straight line. The top of the secondary cutting tool bar is provided with a fastening bolt for fixing the cutter body by thread.

[0011] Furthermore, the top of the sliding sleeve is provided with two elastic components. The elastic components include a sliding rod fixedly disposed at the top of the sliding sleeve, and the rear end of the sliding rod extends to the top of the first-stage cutting tool bar and is fitted with a sleeve.

[0012] An end plate is fixedly provided at the rear end of the sleeve. The end plate has a vent hole that can balance the air pressure and reduce the resistance during the movement of the slide bar. The bottom end of the end plate is fixedly connected to the top end of the first-stage cutting tool bar.

[0013] Furthermore, a spring is fixedly provided at the rear end of the slide rod, the spring is located inside the sleeve and the rear end of the spring is fixedly connected to the end plate;

[0014] A connecting plate is provided between the two sliding rods, and the two ends of the connecting plate are fixedly connected to the two sliding rods respectively.

[0015] Compared with the prior art, this utility model provides a conventional lathe double-head combined cutting tool structure, which has the following advantages:

[0016] 1. By connecting the primary and secondary cutting tool holders through a rotating shaft, sliding the sleeve backward, and then rotating the secondary cutting tool holder along with the tool body 180°, the positions of the two cutting tools can be exchanged. This method of adjusting the direction of the cutting tools makes it easier to use the two cutting tools alternately to machine the workpiece.

[0017] 2. A stop block is installed inside the first mounting groove by bolts. The stop block can hold the tool body inside the first mounting groove, allowing the tool body to slide left and right in a straight line. In this way, during the machining of the workpiece, the cutting tool can slide and adjust the distance between the cutting tool, which serves as the inner hole cutting head, and the secondary turning tool holder. This makes the distance longer, allowing the tool to machine deeper into the workpiece, thereby increasing the machining range of the turning tool structure. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the present invention;

[0019] Figure 2 This is a structural diagram of the internal hole cutting state of this utility model;

[0020] Figure 3 This is a bottom sectional view of the sliding sleeve of this utility model;

[0021] Figure 4 This is a structural diagram of the blade body of this utility model;

[0022] Figure 5 This is a diagram showing the internal structure of the elastic component of this utility model.

[0023] In the diagram: 1. Primary cutting tool holder; 2. Secondary cutting tool holder; 3. Elastic assembly; 301. Sleeve; 302. Slide bar; 303. Spring; 304. End plate; 305. Vent hole; 4. Sliding sleeve; 5. Tool body; 6. Cutting tool; 7. First mounting slot; 8. Stop block; 9. Second mounting slot; 10. Connecting plate; 11. Fastening bolt. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model readily understandable, the present utility model will be further described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1-5 As shown, this utility model provides a conventional lathe double-head combined turning tool structure, including a primary turning tool holder 1, a secondary turning tool holder 2 provided at the front end of the primary turning tool holder 1 via a rotating shaft, and a sliding sleeve 4 sleeved at the outer end of the connection between the primary turning tool holder 1 and the secondary turning tool holder 2.

[0026] The front end of the secondary lathe tool holder 2 is provided with a first mounting groove 7. The first mounting groove 7 is provided with a tool body 5. Both ends of the tool body 5 extend to both sides of the first mounting groove 7, and both ends of the tool body 5 are provided with detachable blades 6. The two blades 6 are an outer circle tool head and an inner hole tool head, respectively.

[0027] The tool body 5 is fixed inside the first mounting groove 7 at the front end of the secondary turning tool holder 2, and two inserts 6 are set at both ends of the tool body 5. The two inserts 6 are used as external turning tool heads and internal turning tool heads, respectively. When machining the workpiece, the two inserts 6 are used alternately to cut the workpiece. If the workpiece is located on the side where one insert 6 is located, and the other insert 6 is needed for machining, the sliding sleeve 4 is slid backward to fully expose the secondary turning tool holder 2. Then, the secondary turning tool holder 2 and the tool body 5 are rotated 180° to exchange the positions of the two inserts 6. Then, the sliding sleeve 4 is put back on the connection between the primary turning tool holder 1 and the secondary turning tool holder 2 to fix the two into a whole. By adjusting the direction of the inserts 6 in this way, it is more convenient to use the two inserts 6 alternately to machine the workpiece.

[0028] The distance between the blade body 5 and the blade 6 can be adjusted as needed, such as... Figures 1-4 As shown, the blade body 5 has a second mounting groove 9 at both ends. The rear end of the blade 6 is embedded in the second mounting groove 9 and is fixedly connected to the blade body 5 by bolts, which facilitates the disassembly and replacement of the blade 6.

[0029] The first mounting groove 7 is provided with a stop block 8, which is located on the front side of the tool body 5 and is fixedly connected to the secondary cutting tool bar 2 by bolts.

[0030] The outer end of the cutter body 5 contacts the inner wall of the first mounting groove 7 and the rear side of the stop block 8, so that the cutter body 5 can only slide left and right along a straight line. The top end of the secondary cutting tool bar 2 is provided with a fastening bolt 11 for fixing the cutter body 5 by thread.

[0031] A stop 8 is bolted inside the first mounting groove 7. The stop 8 can hold the tool body 5 inside the first mounting groove 7, so that the tool body 5 can slide left and right in a straight line but cannot move back and forth. In this way, during the machining of the workpiece, before the inner hole tool head cuts the inner wall of the workpiece, the insert 6 can slide to adjust the distance between the insert 6, which is the inner hole tool head, and the secondary turning tool holder 2, so that the distance is longer and the deeper parts of the workpiece can be machined, thereby improving the machining range of the turning tool structure.

[0032] Sliding sleeve 4 can automatically reset after use, such as Figure 1 , Figure 2 , Figure 5 As shown, the top of the sliding sleeve 4 is provided with two elastic components 3. The elastic component 3 includes a sliding rod 302 fixedly installed at the top of the sliding sleeve 4. The rear end of the sliding rod 302 extends to the top of the first-stage cutting tool holder 1 and is fitted with a sleeve 301.

[0033] The end plate 304 is fixedly provided at the rear end of the sleeve 301. The end plate 304 has a vent hole 305 that can balance the air pressure and reduce the resistance during the movement of the slide bar 302. The bottom end of the end plate 304 is fixedly connected to the top end of the first-stage cutting tool bar 1.

[0034] A spring 303 is fixedly provided at the rear end of the slide rod 302. The spring 303 is located inside the sleeve 301 and the rear end of the spring 303 is fixedly connected to the end plate 304.

[0035] A connecting plate 10 is provided between the two slide rods 302, and the two ends of the connecting plate 10 are fixedly connected to the two slide rods 302 respectively.

[0036] When the sliding sleeve 4 needs to move backward and displace from the connection between the first-stage cutting tool holder 1 and the second-stage cutting tool holder 2, the connecting plate 10 is pulled backward, which in turn causes the sliding rod 302 to retract backward into the sleeve 301. The spring 303 is thus compressed. After the position of the cutting tool 6 is exchanged, the connecting plate 10 is released, the elastic force of the spring 303 is released, and the sliding rod 302 and the sliding sleeve 4 are pushed forward back to their original positions.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A structure of a double-tool-head combined turning tool for a general lathe, comprising a first turning tool bar (1), characterized in that: The first-stage cutting tool holder (1) has a second-stage cutting tool holder (2) at its front end via a rotating shaft, and a sliding sleeve (4) is fitted at the outer end of the connection between the first-stage cutting tool holder (1) and the second-stage cutting tool holder (2). The front end of the secondary lathe tool holder (2) is provided with a first mounting groove (7), and a tool body (5) is provided inside the first mounting groove (7). The two ends of the tool body (5) extend to both sides of the first mounting groove (7), and both ends of the tool body (5) are provided with detachable blades (6). The two blades (6) are an outer circle tool head and an inner hole tool head, respectively.

2. The lathe tool structure according to claim 1, wherein: The blade body (5) has a second mounting groove (9) at both ends. The rear end of the blade (6) is embedded in the second mounting groove (9) and is fixedly connected to the blade body (5) by bolts.

3. The lathe tool structure according to claim 1, wherein: The first mounting groove (7) is provided with a stop block (8), which is located on the front side of the tool body (5) and is fixedly connected to the secondary cutting tool bar (2) by bolts.

4. The lathe tool structure according to claim 3, wherein: The outer end of the cutter body (5) is in contact with the inner wall of the first mounting groove (7) and the rear side of the stop block (8). The top end of the secondary cutting tool bar (2) is provided with a fastening bolt (11) for fixing the cutter body (5) by thread.

5. The lathe tool structure according to claim 1, wherein: The top of the sliding sleeve (4) is provided with two elastic components (3). The elastic component (3) includes a sliding rod (302) fixedly installed at the top of the sliding sleeve (4). The rear end of the sliding rod (302) extends to the top of the first-stage cutting tool holder (1) and is fitted with a sleeve (301). The sleeve (301) is fixedly provided with an end plate (304) at its rear end. The end plate (304) is provided with a vent hole (305) that can balance the air pressure. The bottom end of the end plate (304) is fixedly connected to the top end of the first-stage cutting tool bar (1).

6. The lathe tool structure according to claim 5, wherein: A spring (303) is fixedly provided at the rear end of the slide rod (302). The spring (303) is located inside the sleeve (301) and the rear end of the spring (303) is fixedly connected to the end plate (304). A connecting plate (10) is provided between the two slide rods (302), and the two ends of the connecting plate (10) are fixedly connected to the two slide rods (302) respectively.

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