Cutter rest improvement device of numerical control precision automatic lathe

Abstract

The utility model discloses a numerical control precision automatic lathe knife rest improvement device which comprises a knife rest, a first sliding groove is formed in the middle of the upper end of the knife rest, symmetrical second sliding grooves are formed in the two sides of the first sliding groove, the upper end of the knife rest is movably connected with a connecting plate, and the bottom end of the connecting plate is fixedly connected with a connecting rod penetrating through the first sliding groove and a second sliding groove penetrating through the second sliding groove. The outer surface of the bottom end of the first half-threaded rod is in threaded connection with a connecting base, and the end, away from the first half-threaded rod, of the connecting base is fixedly connected with a tool. The second half threaded rod is rotationally connected to the inner threaded ring in a threaded mode and disengaged from the connecting groove, then the connecting block is driven to be away from the contact with the two limiting blocks, at the moment, the spring between the two limiting blocks relieves the elastic acting force, moves and shrinks into the connecting groove, clamping with the limiting hole is relieved, and the clamping effect is achieved. And then the connecting base is rotated to be separated from the first half threaded rod, so that the tool which is seriously abraded is detached and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC sliding headstock lathes, in particular to an improved device for the tool rest of a CNC sliding headstock lathe. Background Technique

[0002] The sliding headstock lathe is fully called a CNC lathe with a sliding headstock, and can also be called a CNC automatic lathe with a moving spindle box, an economical turning and milling compound machine tool or a longitudinal cutting lathe. It belongs to precision machining equipment and can simultaneously complete compound machining such as turning, milling, drilling, boring, tapping, engraving, etc. at one time. It is mainly used for batch processing of precision hardware and special-shaped standard parts of shafts; generally, the sliding headstock lathe has a main shaft and a sub-spindle. The workpiece is first processed in the main shaft and then clamped and processed by the sub-spindle.

[0003] However, the tool bit of the CNC sliding headstock lathe is a consumable during the processing process. Therefore, in some cases, the entire tool rest needs to be replaced. However, the other tools on the tool rest are less worn, resulting in waste caused by overall replacement; therefore, it does not meet the existing requirements. For this reason, we propose an improved device for the tool rest of a CNC sliding headstock lathe. Content of the Utility Model

[0004] The purpose of the utility model is to provide an improved device for the tool rest of a CNC sliding headstock lathe to solve the problem that the tool bit of the CNC sliding headstock lathe is a consumable during the processing process. Therefore, in some cases, the entire tool rest needs to be replaced. However, the other tools on the tool rest are less worn, resulting in waste caused by overall replacement.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An improved device for the tool rest of a CNC sliding headstock lathe, including a tool rest. A first sliding groove is opened in the middle of the upper end of the tool rest. Symmetric second sliding grooves are opened on both sides of the first sliding groove. The upper end of the tool rest is movably connected with a connecting plate. The bottom end of the connecting plate is fixedly connected with a first half-threaded rod that penetrates through the first sliding groove and extends to the bottom end of the tool rest. A connecting seat is threadedly connected to the outer surface of the bottom end of the first half-threaded rod. One end of the connecting seat away from the first half-threaded rod is fixedly connected with a tool.

[0006] Preferably, both sides of the bottom end of the connecting plate are fixedly connected with threaded rods that penetrate through the second sliding grooves. Nuts are threadedly connected to the outer surface of the threaded rods and located at the bottom end of the tool rest.

[0007] Preferably, a connecting groove is opened inside the upper end of the first half-threaded rod. A second half-threaded rod that penetrates through the connecting groove and extends to the top end of the connecting plate is rotatably connected inside the connecting groove. An internal thread ring is fixedly connected to the inner wall of the connecting groove close to the connecting plate side. The outer surface of the second half-threaded rod is threadedly connected to the internal thread ring.

[0008] Preferably, limiting blocks that penetrate and extend to the outside of the first half-threaded rod are slidably connected to both sides of the inner part of the connecting groove near one end of the threaded groove, and a spring is fixedly connected between the sides of the two limiting blocks that are close to each other.

[0009] Preferably, a connecting block is fixedly connected to the bottom end of the second half-threaded rod, and the outer surface of the connecting block near the bottom end is arranged obliquely upward, and the outer surface of the connecting block is in sliding contact with the sides of the two limiting blocks that are close to each other.

[0010] Preferably, limiting holes matching the limiting blocks are formed on both sides of the connecting seat near the upper end, and one end of the limiting block that penetrates and extends to the outside of the first half-threaded rod is inserted into the limiting hole.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By pushing the connecting plate, the present utility model enables the connecting plate to drive the first half-threaded rod connected with the tool to slide along the first sliding groove, and enables the threaded rods on both sides of the connecting plate to slide inside the second sliding groove. When moving to a suitable position, a nut is threadedly connected to the outer surface of the threaded rod, and the nut is in contact with the bottom end of the tool rest, thereby fixing the positions of the various tools and preventing the various tools from affecting each other during use;

[0013] 2. By rotating the second half-threaded rod, the present utility model enables the second half-threaded rod to be threadedly rotated and connected to the internal threaded ring, and enables the second half-threaded rod to disengage from the connecting groove, thereby driving the connecting block to move away from the contact with the two limiting blocks. At this time, the spring between the two limiting blocks releases the elastic force, and enables the two limiting blocks to move and contract into the internal part of the connecting groove, disengaging from the clamping connection with the limiting holes. Then, by rotating the connecting seat, the connecting seat is threadedly rotated and disengaged from the connection with the first half-threaded rod, thereby disassembling and replacing the tool with serious wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 is a schematic connection structure diagram of the first half-threaded rod and the tool of the present utility model;

[0016] Figure 3 is a side cross-sectional view of the first half-threaded rod and the tool of the present utility model;

[0017] Figure 4 is the present utility model Figure 3 the structural schematic diagram at A in.

[0018] In the figure: 1. Tool rest; 101. First sliding groove; 102. Second sliding groove; 2. Connecting plate; 3. First half threaded rod; 301. Connecting groove; 4. Connecting seat; 401. Internal thread groove; 402. Limit hole; 5. Tool; 6. Threaded rod; 7. Nut; 8. Second half threaded rod; 9. Internal thread ring; 10. Connecting block; 11. Limit block; 12. Spring. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Please refer to Figures 1 to 4 , an embodiment provided by the present invention: an improved device for a tool rest of a CNC sliding headstock lathe, including a tool rest 1. A first sliding groove 101 is opened in the middle of the upper end of the tool rest 1. Symmetric second sliding grooves 102 are opened on both sides of the first sliding groove 101. A connecting plate 2 is movably connected to the upper end of the tool rest 1. A first half threaded rod 3 is fixedly connected to the bottom end of the connecting plate 2 and penetrates through the first sliding groove 101 and extends to the bottom end of the tool rest 1. A connecting seat 4 is threadedly connected to the outer surface of the bottom end of the first half threaded rod 3. A tool 5 is fixedly connected to the end of the connecting seat 4 away from the first half threaded rod 3.

[0021] Threaded rods 6 penetrating through the second sliding grooves 102 are fixedly connected to both sides of the bottom end of the connecting plate 2. Nuts 7 are threadedly connected to the outer surfaces of the threaded rods 6 and located at the bottom end of the tool rest 1.

[0022] By pushing the connecting plate 2, the first half threaded rod 3 connected to the tool 5 is driven by the connecting plate 2 to slide along the first sliding groove 101, and the threaded rods 6 on both sides of the connecting plate 2 slide inside the second sliding grooves 102. When moved to a suitable position, the nuts 7 are threadedly connected to the outer surfaces of the threaded rods 6 and the nuts 7 are in contact with the bottom end of the tool rest 1, so as to fix the positions of the respective tools 5 and prevent the respective tools 5 from affecting each other during use.

[0023] A connecting groove 301 is opened inside the upper end of the first half threaded rod 3. A second half threaded rod 8 penetrating through the connecting groove 301 and extending to the top end of the connecting plate 2 is rotatably connected inside the connecting groove 301. An internal thread ring 9 is fixedly connected to the inner wall of the connecting groove 301 close to the connecting plate 2. The outer surface of the second half threaded rod 8 is threadedly connected to the internal thread ring 9. By rotating the second half threaded rod 8, the second half threaded rod 8 is threadedly rotated and connected to the internal thread ring 9, and the second half threaded rod 8 is disengaged from the connecting groove 301.

[0024] On both sides of the inner part of the connecting groove 301 near one end of the threaded groove, there are sliding connections with limit blocks 11 that penetrate and extend to the outside of the first half-threaded rod 3. A spring 12 is fixedly connected between the sides of the two limit blocks 11 that are close to each other. A connecting block 10 is fixedly connected to the bottom end of the second half-threaded rod 8, and the outer surface of the connecting block 10 near the bottom end is inclined upward. The outer surface of the connecting block 10 is in sliding contact with the sides of the two limit blocks 11 that are close to each other. On both sides of the upper part of the connecting seat 4, there are provided limit holes 402 that match the limit blocks 11, and one end of the limit block 11 that penetrates and extends to the outside of the first half-threaded rod 3 is inserted into the limit hole 402.

[0025] When the second half-threaded rod 8 disengages from the connecting groove 301, it drives the connecting block 10 to move away from the contact with the two limit blocks 11. At this time, the spring 12 between the two limit blocks 11 releases its elastic force, causing the two limit blocks 11 to move and contract into the interior of the connecting groove 301, disengaging from the clamping with the limit holes 402. Then, rotate the connecting seat 4 to threadedly rotate the connecting seat 4 away from the connection with the first half-threaded rod 3, so as to disassemble the severely worn tool 5 for replacement.

[0026] When the CNC sliding headstock tool holder is in use, by pushing the connecting plate 2, the connecting plate 2 drives the first half-threaded rod 3 connected with the tool 5 to slide along the first sliding groove 101, and the threaded rods 6 on both sides of the connecting plate 2 slide inside the second sliding groove 102. When it moves to a suitable position, threadedly connect the nut 7 with the outer surface of the threaded rod 6, and make the nut 7 contact the bottom end of the tool holder 1, thereby fixing the positions of the various tools 5 to prevent the various tools 5 from affecting each other during use; when it is necessary to disassemble the tool 5, by rotating the second half-threaded rod 8, the second half-threaded rod 8 is threadedly rotated and connected to the internal threaded ring 9, and the second half-threaded rod 8 disengages from the connecting groove 301, thereby driving the connecting block 10 to move away from the contact with the two limit blocks 11. At this time, the spring 12 between the two limit blocks 11 releases its elastic force, causing the two limit blocks 11 to move and contract into the interior of the connecting groove 301, disengaging from the clamping with the limit holes 402. Then, rotate the connecting seat 4 to threadedly rotate the connecting seat 4 away from the connection with the first half-threaded rod 3, so as to disassemble the severely worn tool 5 for replacement.

[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An improved device for a CNC Swiss-type lathe tool rest, comprising a tool rest (1), characterized in that: A first slide groove (101) is provided in the middle of the upper end of the tool holder (1), and symmetrical second slide grooves (102) are provided on both sides of the first slide groove (101). The upper end of the tool holder (1) is movably connected with a connecting plate (2), and the bottom end of the connecting plate (2) is fixedly connected with a first half-threaded rod (3) that passes through the first slide groove (101) and extends to the bottom end of the tool holder (1). The outer surface of the bottom end of the first half-threaded rod (3) is threadedly connected with a connecting seat (4), and the end of the connecting seat (4) away from the first half-threaded rod (3) is fixedly connected with a tool (5).

2. The improved device for the tool rest of a CNC Swiss-type lathe according to claim 1 is characterized in that: Both sides of the bottom end of the connecting plate (2) are fixedly connected to a threaded rod (6) that passes through the second slide groove (102), and a nut (7) is threadedly connected to the outer surface of the threaded rod (6) and located at the bottom end of the tool holder (1).

3. The improved device for the tool rest of a CNC Swiss-type lathe according to claim 1 is characterized in that: A connecting groove (301) is provided inside the upper end of the first half-threaded rod (3), and a second half-threaded rod (8) is rotatably connected inside the connecting groove (301) and passes through the connecting groove (301) and extends to the top of the connecting plate (2). An internal threaded ring (9) is fixedly connected to the inner wall of the connecting groove (301) on a side close to the connecting plate (2), and the outer surface of the second half-threaded rod (8) is threadedly connected to the internal threaded ring (9).

4. The improved device for the tool rest of a CNC Swiss-type lathe according to claim 3 is characterized in that: Both sides of the connection groove (301) near one end of the thread groove are slidably connected with limit blocks (11) extending through and to the outside of the first half threaded rod (3), and a spring (12) is fixedly connected between the two sides of the limit blocks (11) close to each other.

5. The improved device for the tool rest of a CNC Swiss-type lathe according to claim 4 is characterized in that: The bottom end of the second semi-threaded rod (8) is fixedly connected to a connecting block (10), and the outer surface of the connecting block (10) close to the bottom end is arranged to be inclined upward, and the outer surface of the connecting block (10) is in sliding contact with the side of the two limit blocks (11) close to each other.

6. The improved device for the tool rest of a CNC Swiss-type lathe according to claim 4 is characterized in that: The connection seat (4) is provided with limiting holes (402) matching the limiting block (11) on both sides near the upper end, and the limiting block (11) extends through one end of the first half threaded rod (3) to the outside and is plugged into the limiting hole (402).

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