Deep hole machining device for horizontal lathe

Abstract

The utility model provides a deep hole processing device for a horizontal lathe, which aims to solve the problems of low precision and low efficiency caused by repeated clamping in deep hole processing, and comprises a lathe body, a headstock, a tailstock, a knife rest, a feeding system, a chuck, a closed center frame, an open center frame, a water pan and a boring bar bracket fixedly connected above the lathe body, one end of the boring rod is coaxially and slidably connected; the boring cutter holder is fixedly connected above the X-direction sliding plate of the feeding system and is fixedly connected with one end of the boring rod; the auxiliary supporting beam is fixedly connected to the upper portion of a Z-direction sliding plate of the feeding system, and the boring cutter base is slidably connected to the auxiliary supporting beam in the radial direction of the workpiece; the chuck chip removal hopper and the middle chip removal hopper are respectively arranged on one side of the chuck above the lathe bed and between the closed center frame and the boring bar bracket, and chip removal openings are formed in the lower ends of the chuck chip removal hopper and the middle chip removal hopper; the auxiliary supporting beam is arranged for auxiliary supporting and guiding, the feeding system drives the boring tool apron to adjust the coaxiality of the boring rod and the workpiece in the radial direction of the workpiece, and the machining precision and the working efficiency are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a deep hole processing device for a horizontal lathe. Background Art

[0002] Ordinary horizontal lathes, CNC horizontal lathes, and large spindle through-hole pipe thread lathes only have the functions of turning external circles, end faces, threads, and drilling and boring shallow holes. CNC turning centers have added indexing milling and drilling functions based on CNC horizontal lathes, but the above machine tools do not have deep hole drilling and boring functions.

[0003] When a workpiece needs to be deep-hole drilled and bored on top of being processed on a lathe or turning center, the general method is to use dedicated deep-hole drilling and boring equipment to meet the processing requirements. The resulting repeated clamping will result in low precision and efficiency, and also increase procurement costs. Utility Model Content

[0004] The utility model provides a deep hole processing device for a horizontal lathe to solve the technical problems mentioned in the above background technology. In order to achieve the above purpose, the technical solution adopted is as follows:

[0005] A deep hole processing device for a horizontal lathe, comprising a bed, a headstock, a tailstock, a tool rest, a feeding system, a chuck, a closed center frame, an open center frame, a water receiving tray, and also comprising:

[0006] A boring bar bracket is fixedly connected above the bed and is located on a side of the closed center frame away from the workpiece. A boring bar guide sleeve is provided on the boring bar bracket for coaxially slidingly connecting with the boring bar.

[0007] A boring tool seat, fixedly connected to the upper side of the X-axis slide of the feed system, wherein the boring tool seat is provided with a first through hole for interference fit with the boring bar;

[0008] A chuck chip removal bucket is arranged above the bed and located on one side of the chuck, and the chuck chip removal bucket is provided with a through hole for matching with the workpiece and the chuck gap;

[0009] An intermediate chip removal bucket is arranged above the bed and between the closed center frame and the boring bar bracket, and the intermediate chip removal bucket is provided with a through hole for clearance cooperation with the boring bar and the workpiece;

[0010] The chuck chip removal bucket and the middle chip removal bucket are hollow inside and have chip removal openings at the lower ends.

[0011] Furthermore, it also includes an auxiliary support beam, which is fixedly connected to the upper part of the Z-axis slide of the feed system, and the boring tool seat is connected to the auxiliary support beam in a radially sliding manner along the workpiece.

[0012] Furthermore, a guide rail is arranged at the upper end of the auxiliary support beam, the length of the guide rail is distributed along the radial direction of the workpiece, and a sliding block is arranged on the boring tool seat and is slidably connected with the guide rail.

[0013] Furthermore, the boring tool seat is composed of a fixing seat and an upper cover plate located above the fixing seat, and the upper cover plate and the fixing seat are detachably fixedly connected by bolts.

[0014] Furthermore, the chuck chip removal bucket and the middle chip removal bucket are both composed of an upper chip removal bucket and a lower chip removal bucket, and a water receiving edge is arranged on the outer side of the lower chip removal bucket, and the water receiving edge is connected to the inner cavity of the lower chip removal bucket.

[0015] Furthermore, a collecting plate is fixedly connected to the interior of the lower chip removal bucket, and the collecting plate is arranged outside the chip removal opening and is distributed obliquely.

[0016] Furthermore, a lifting ring is fixedly connected to the upper end of the upper chip removal bucket.

[0017] Furthermore, observation windows are provided on the side walls of the chuck chip removal bucket and the middle chip removal bucket.

[0018] The beneficial effects of the utility model are:

[0019] 1. The boring bar is supported by setting a boring tool holder and a boring bar bracket. One end of the boring bar is fixedly connected to the boring tool holder, and the other end slides along the axial direction of the workpiece through the boring bar guide sleeve, which plays a role in reducing the deflection and deformation of the boring bar and guiding it. The boring tool holder is fixed to the X-axis slide of the feed system, so that the position of the boring bar in the radial direction of the workpiece can be adjusted through the feed system before boring hole processing until the boring bar and the workpiece are coaxially distributed. Compared with the method of using special deep hole drilling and boring equipment, there is no need for repeated clamping, which effectively improves the processing accuracy and processing efficiency;

[0020] 2. An auxiliary support beam is arranged on the Z-direction slide of the feed system to provide auxiliary support for the boring tool holder, thereby improving the rigidity of the boring tool holder. At the same time, an X-direction guide structure is arranged between the boring tool holder and the auxiliary support beam to limit the movement direction of the boring tool holder and improve the reliability of the movement between the components. The boring tool holder is fixedly connected to the Z-direction slide of the feed system through the auxiliary support beam. When boring holes are processed, the boring tool holder and the boring bar can be driven by the feed system to feed along the axial direction of the workpiece;

[0021] 3. The intermediate chip bucket and the chuck chip bucket are set to collect the coolant and iron chips at the connection between the boring bar and the workpiece, and at the connection between the boring bar and the chuck, respectively, to reduce the iron chips scattered inside the machine tool, reduce the difficulty of manual cleaning and downtime, and avoid the risks of slipping, electrical short circuit, etc. caused by iron chips splashing or coolant overflow;

[0022] 4. The middle chip bucket and the chuck chip bucket both adopt a split structure of upper chip bucket + lower chip bucket overlapped, which is easy to install. A water receiving edge is set on the outside of the lower chip bucket to collect the coolant overflowing to the outer surface of the chip bucket and discharge it through the chip discharge port. A collection plate is set inside to facilitate the collection and discharge of coolant and iron chips.

[0023] 5. This device can be installed and used on any standard ordinary horizontal lathe, CNC horizontal lathe, large through-hole pipe thread lathe, and CNC turning center, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the existing horizontal lathe structure

[0025] Figure 2 This is a three-dimensional structural diagram of the utility model

[0026] Figure 3 Schematic diagram of the boring bar bracket structure

[0027] Figure 4 Schematic diagram of the connection structure between the boring tool holder and the feed system

[0028] Figure 5 Schematic diagram of the middle chip bucket structure

[0029] Figure 6 Schematic diagram of the chuck chip bucket structure

[0030] in:

[0031] 1-bed, 2-headstock, 3-tailstock, 4-tool rest, 5-feed system, 501-Z slide, 502-X slide, 6-chuck, 7-closed center frame, 8-open center frame, 9-water tray, 10-boring tool holder, 1001-fixed seat, 1002-upper cover, 1003-first through hole, 11-auxiliary support beam, 12-boring bar, 13-boring bar support Frame, 14-middle chip removal bucket, 15-chuck chip removal bucket, 16-workpiece, 17-boring bar guide sleeve, 18-guide rail, 19-slider, 20-cutting tool, 21-lifting ring, 22-observation window, 23-water receiving edge, 24-collecting plate, 25-chip removal port, 26-boring bar through hole, 27-workpiece through hole, 28-chuck through hole, 29-upper chip removal bucket, 30-lower chip removal bucket. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the viewing direction or position relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0034] In this embodiment, for the convenience of description, the axial direction of the workpiece 16 is referred to as the Z direction, and the radial direction of the workpiece 16 is referred to as the X direction.

[0035] like Figure 2-Figure 6 The deep hole processing device for a horizontal lathe shown in the figure includes a bed 1, a headstock 2, a tailstock 3, a tool holder 4, a feeding system 5, a chuck 6, a closed center frame 7, an open center frame 8, a water receiving tray 9, a boring tool seat 10, a boring bar bracket 13, an intermediate chip removal bucket 14 and a chuck chip removal bucket 15. The boring tool seat 10 is connected to the top of the feeding system 5, the boring bar bracket 13 is fixedly connected to the top of the bed 1 and is located on the Z-direction rear side of the closed center frame 7, and the boring bar 12 is supported by the boring tool seat 10 and the boring bar bracket 13. The intermediate chip removal bucket 14 is located between the boring bar bracket 13 and the closed center frame 7, and is used for collecting coolant and iron chips at the processing position of the boring bar 12 and the workpiece 16. The chuck chip removal bucket 15 is located on the Z-direction rear side of the chuck 6, and is used for collecting coolant and iron chips at the connection between the chuck 6 and the workpiece 16.

[0036] Specifically, Figure 2 and Figure 3 As shown, the boring bar bracket 13 is fixedly connected to the top of the bed 1, and is spaced apart from the closed center frame 7 in the axial direction of the workpiece 16. The boring bar bracket 13 is a split structure distributed up and down, and a boring bar guide sleeve 17 is fixedly connected to the boring bar bracket 13. One end of the boring bar 12 with the cutting tool 22 is coaxially slidably connected to the boring bar guide sleeve 17. The boring bar guide sleeve 17 can guide the boring bar 12 and reduce the deflection deformation of the boring bar 12. Moreover, the boring bar bracket 13 adopts a split structure, and can adapt to boring bars 12 of different diameters by replacing boring bar guide sleeves 17 with different inner diameters.

[0037] like Figure 2 and Figure 4As shown, the feed system 5 includes a Z-direction slide 501 and an X-direction slide 502. The Z-direction slide 501 is connected to the top of the bed 1 along the axial sliding of the workpiece 16, and the X-direction slide 502 is connected to the top of the Z-direction slide 501 along the radial sliding of the workpiece 16. The tool holder 4 is fixedly connected to the top of the Z-direction slide 501. The boring tool seat 10 adopts a split structure, which is composed of a fixed seat 1001 and an upper cover plate 1002. The fixed seat 1001 is fixedly connected to the top of the X-direction slide 502, and the upper cover plate 1002 is detachably fixedly connected to the top of the fixed seat 1001 by bolts. The fixed seat 1001 and the upper cover plate 1002 are both provided with semicircular grooves extending through the Z direction, and the two cooperate to form a first through hole 1003. One end of the boring bar 12 is placed in the semicircular groove of the fixed seat 1001 Afterwards, the upper cover plate 1002 is fixed to the fixed seat 1001 by bolts, so that the end of the boring bar 12 is tightened and fixed. At this time, the end of the boring bar 12 is fixedly connected to the boring tool seat 10; in addition, an auxiliary support beam 11 is fixedly connected to one side of the Z direction above the Z-direction slide plate 501, and a guide rail 18 is arranged on the upper end of the auxiliary support beam 11. The length of the guide rail 18 is distributed along the X direction, that is, the radial direction of the workpiece 16. A slider 19 that is slidably connected to the guide rail 18 is fixedly connected to one side of the fixed seat 1001 close to the auxiliary support beam 11. The boring tool seat 10 can be driven to move along the length direction of the guide rail 18 through the feed system 5, so as to adjust the boring bar 12 to be coaxial with the workpiece 16, and through the setting of the auxiliary support beam 11, the boring tool seat 10 can be auxiliary supported to improve the rigidity of the overall structure.

[0038] like Figure 2 and Figure 5 As shown, the middle chip removal bucket 14 is a split structure, consisting of an upper chip removal bucket 29 and a lower chip removal bucket 30 overlapped thereon. The upper chip removal bucket 29 has no cover at the lower end, and the lower chip removal bucket 30 has no cover at the upper end. The two cooperate to form an internal hollow cavity, and a chip removal opening 25 is provided at the lower end of the lower chip removal bucket 30. Boring bar through holes 26 and workpiece through holes 27 are respectively provided on both side surfaces in the Z direction of the middle chip removal bucket 14. The boring bar through hole 26 is larger than the outer diameter of the boring bar 12, and the workpiece through hole 27 is larger than the outer diameter of the workpiece 16. In addition, a lifting ring 21 is fixed above the upper chip removal bucket 29 to facilitate the lifting of the upper chip removal bucket. 29 is placed above the lower chip removal bucket 30, and the outer side surface of the upper end of the lower chip removal bucket 30 is fixedly connected with a water receiving edge 23, which is distributed along the circumference of the lower chip removal bucket 30 and is connected with the interior of the lower chip removal bucket 30. Two groups of collecting plates 24 are arranged at the bottom of the lower chip removal bucket 30. The two collecting plates 24 are respectively located on both sides of the chip removal port 25 in the X direction. Each group of collecting plates 24 is inclined and distributed downward from the outside to the inside in the X direction. In addition, an observation window 22 is also arranged on one side wall of the middle chip removal bucket 14, and the processing status of the workpiece 16 can be observed through the observation window 22.

[0039] One end of the boring bar 12 passes through the boring bar bracket 13, then passes through the boring bar through hole 26 and extends into the cavity of the middle chip removal bucket 14. One end of the workpiece 16 passes through the closed center frame 7, then passes through the workpiece through hole 27 and extends into the cavity of the middle chip removal bucket 14. During the processing, iron chips and most of the coolant pass through the collecting plate 24 and are discharged to the water receiving tray 9 through the chip discharge port 25. A small amount of coolant is collected through the water receiving edge 23 and flows into the cavity of the lower chip removal bucket 30, and finally is discharged to the water receiving tray 9 through the chip discharge port 25.

[0040] like Figure 2 and Figure 6 As shown, the overall structure of the chuck chip removal bucket 15 is the same as that of the intermediate chip removal bucket 14. The difference lies in the setting of the through hole diameter of the chuck chip removal bucket 15 on both sides of the X direction. Specifically, a chuck through hole 28 is provided on the side surface of the chuck chip removal bucket 15 close to the chuck 6, and the diameter of the chuck through hole 28 is larger than the outer diameter of the chuck 6. A workpiece through hole 27 is provided on the side close to the closed center frame 7, and the diameter of the workpiece through hole 27 is larger than the outer diameter of the workpiece 16. The rest of the structure is the same as the intermediate chip removal bucket 14, so it will not be described in detail in this embodiment.

[0041] When the device is used to perform deep hole processing on the workpiece 16, the working principle is as follows:

[0042] First, the intermediate chip bucket 14 and the upper chip bucket 29 of the chuck chip bucket 15 are lifted by the lifting ring 21, and the workpiece 16 is placed. The two axial ends of the workpiece 16 are fixedly connected to the closed center frame 7 and the chuck 6 respectively. After the installation is completed, the chip bucket 29 is hoisted and overlapped above the corresponding lower chip bucket 30; the boring bar 12 is installed, and the two axial ends of the boring bar 12 are respectively connected to the boring tool holder 10 and the boring bar bracket 13 in the Z direction. Then, the X-direction slide 502 is driven to move by the feed system 5, thereby driving the boring tool holder 10 to move on the auxiliary support beam. 11 slides along the X direction, and then adjusts the position of the boring bar 12 until it is coaxial with the workpiece 16; during boring processing, the Z-direction slide plate 501 is driven by the feed system 5, which can drive the boring tool holder 10, the boring bar 12 and its cutting tool 20 to feed along the Z direction, that is, the axial direction of the workpiece 16, so as to perform deep hole processing on the workpiece 16. During boring processing, the coolant flows out through the chuck 6 and the inlet of the boring bar 12, and the intermediate chip bucket 14 and the chuck chip bucket 15 installed on the bed 1 play the role of collecting coolant and removing chips.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A deep hole processing device for a horizontal lathe, comprising a bed, a headstock, a tailstock, a tool rest, a feed system, a chuck, a closed center frame, an open center frame, and a water tray, characterized in that: Also includes: A boring bar bracket is fixedly connected above the bed and is located on a side of the closed center frame away from the workpiece. A boring bar guide sleeve is provided on the boring bar bracket for coaxially slidingly connecting with the boring bar. A boring tool seat, fixedly connected to the upper side of the X-axis slide of the feed system, wherein the boring tool seat is provided with a first through hole for interference fit with the boring bar; An auxiliary support beam is fixedly connected above the Z-direction slide of the feed system, and the boring tool holder is slidably connected to the auxiliary support beam along the radial direction of the workpiece; A chuck chip removal bucket is arranged above the bed and located on one side of the chuck, and the chuck chip removal bucket is provided with a through hole for matching with the workpiece and the chuck gap; An intermediate chip removal bucket is arranged above the bed and between the closed center frame and the boring bar bracket, and the intermediate chip removal bucket is provided with a through hole for clearance cooperation with the boring bar and the workpiece; The chuck chip removal bucket and the middle chip removal bucket are hollow inside and have chip removal openings at the lower ends.

2. The deep hole processing device for a horizontal lathe according to claim 1, characterized in that: A guide rail is arranged at the upper end of the auxiliary support beam, the length of the guide rail is distributed along the radial direction of the workpiece, and a sliding block which is slidably connected with the guide rail is arranged on the boring tool seat.

3. The deep hole processing device for a horizontal lathe according to claim 1, characterized in that: The boring tool seat is composed of a fixing seat and an upper cover plate located above the fixing seat. The upper cover plate and the fixing seat are detachably fixedly connected by bolts.

4. The deep hole processing device for a horizontal lathe according to claim 1, characterized in that: The chuck chip removal bucket and the middle chip removal bucket are both composed of an upper chip removal bucket and a lower chip removal bucket. A water receiving edge is arranged on the outer side of the lower chip removal bucket, and the water receiving edge is connected to the inner cavity of the lower chip removal bucket.

5. The deep hole processing device for a horizontal lathe according to claim 4, characterized in that: A collecting plate is also fixedly connected to the interior of the lower chip removal bucket, and the collecting plate is arranged outside the chip removal opening and is distributed obliquely.

6. The deep hole processing device for a horizontal lathe according to claim 4, characterized in that: The upper end of the upper chip removal bucket is fixedly connected with a hanging ring.

7. The deep hole processing device for a horizontal lathe according to claim 1, characterized in that: Observation windows are arranged on the side walls of the chuck chip removal bucket and the middle chip removal bucket.

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