Cut-off mechanism for machining super-long double-end bolt on horizontal lathe

Abstract

The utility model relates to the field of numerical control horizontal lathe auxiliary processing devices, in particular to a cutting mechanism for processing an overlong stud on a horizontal lathe, which comprises a fixed support, a linear guide rail and a cutting mechanism, and the cutting mechanism comprises a cutting mechanism saw disc; the cutting-off mechanism is fixed to the other side, close to the chuck, of the lathe bed through the fixing support, after the turning tool rest machines threads at one end of the stud, the cutting-off mechanism can conduct feeding, the stud and the process chuck are cut and separated through a cutting mechanism saw disc, and product machining is completed; moving guide rails of the cutting mechanism are linear guide rails, the linear guide rails are perpendicular to guide rails of a lathe bed, and it is ensured that a cut surface is perpendicular to the axis of a workpiece. According to the utility model, the problems that secondary clamping adjustment is required for processing the ultra-long double-end bolt, a large loading and unloading space is required during turning processing and the like are solved, all processing is completed by one-time clamping, the processing precision and the processing efficiency are improved, the production cost is reduced, and the fixture can be widely applied to processing of similar parts.

Description

Technical Field

[0001] The utility model relates to an auxiliary processing device for a numerically controlled horizontal lathe, in particular to a cutting mechanism for processing extra-long stud bolts. Background Art

[0002] CNC horizontal lathes are primarily used for machining shaft parts, including the extra-long stud bolts used in automotive press lines. These parts are currently processed using a traditional clamp-and-support method. After one end is threaded, the lathe is re-clamped and the other end is threaded.

[0003] Extra-long stud bolts are those with a diameter greater than 200mm and a length greater than 10m. Due to their extra length, turning and clamping the stud bolts requires a lot of space and is cumbersome. Furthermore, the need for secondary clamping can easily lead to poor coaxiality and other precision issues at both ends. This machining method is generally inefficient, lacks precision, and increases production costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an auxiliary processing device for a CNC horizontal lathe, so as to improve the processing efficiency and processing accuracy of extra-long stud bolts and reduce production costs.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a cutting mechanism for processing extra-long stud bolts on a horizontal lathe, comprising a fixed bracket, a linear guide rail arranged on the fixed bracket, and a cutting mechanism arranged on the linear guide rail, the cutting mechanism including a cutting mechanism saw disk; the cutting mechanism and the linear guide rail are fixed to the other side of the bed near the chuck through the fixed bracket, and when the tool holder has processed the thread on one end of the stud bolt, the cutting mechanism can be fed through the cutting mechanism saw disk to cut the stud bolt and the process chuck apart to complete the processing of the product; the movable guide rail of the cutting mechanism is the linear guide rail, and the linear guide rail is ensured to be perpendicular to the bed guide rail to ensure that the cutting surface is perpendicular to the axis of the workpiece.

[0006] Preferably, the rotary motion of the saw disc of the cutting mechanism is achieved by a reduction motor whose speed can be adjusted by frequency through a pair of gears.

[0007] Preferably, the saw disk of the cutting mechanism is connected to a saw disk shaft, and the saw disk shaft is provided with the gear connected to the reduction motor.

[0008] Preferably, the left end of the saw disk shaft is supported by two tapered roller bearings, and the right end is supported by a deep groove ball bearing. The cutting mechanism is driven by a servo motor through a coupling to drive a ball screw to achieve high-precision feeding movement in the X direction on the linear guide rail. One end of the ball screw is supported by a combined bearing, and the other end is supported by a pair of deep groove ball bearings.

[0009] Preferably, the cutting mechanism realizes high-precision feeding motion in the X direction by the servo motor driving the ball screw on the linear guide rail.

[0010] Preferably, a damping block is provided on one side of the saw disk of the cutting mechanism, and the damping block is pressed to prevent the saw disk of the cutting mechanism from vibrating.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The utility model has a novel structure, is reliable, and is easy to install and operate. Through the application of this structure, the process route of stud bolt processing is optimized, the processing accuracy and efficiency of parts are greatly improved, and the production cost and the required workpiece operation space are reduced.

[0013] The utility model solves the problems that the processing of extra-long stud bolts requires secondary clamping and adjustment, and a large loading and unloading space is required for turning processing, etc., and the entire processing can be completed by one clamping, thereby improving the processing accuracy and processing efficiency, reducing production costs, and can be widely used in the processing of similar parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the outline drawing of the cutting mechanism used for processing extra-long stud bolts;

[0015] Figure 2 This is an expanded structural diagram of a cutting mechanism used for processing extra-long stud bolts;

[0016] Figure 3 This is a structural diagram of the X-axis feed mechanism of a shearing mechanism used for processing extra-long stud bolts.

[0017] Figure numerals: 1. saw disk of cutting mechanism; 2. stud bolt; 3. bed; 4. tool holder; 5. fixing bracket; 6. damping block; 7. saw disk shaft; 8. gear; 9. reduction motor; 10. linear guide; 11. slide plate; 12. deep groove ball bearing; 13. ball screw; 14. combined bearing; 15. coupling; 16. servo motor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] An embodiment of the present utility model discloses a cutting mechanism for processing extra-long stud bolts on a horizontal lathe. The cutting mechanism is placed on two guide rails (a flat guide rail and a triangular guide rail) of the bed 3 of a CNC horizontal lathe, and is fixed to the bed 3 on the other side of the chuck by a fixing bracket 5 with screws, and then pressed against the guide rails of the bed 3 with a pressure plate, so as to ensure that the entire device does not move along the axis direction of the workpiece.

[0020] This cutting mechanism and toolholder 4 do not interfere with each other, enabling the complete machining of the stud bolt 2 in a single clamping operation, while also improving the coaxiality and other precision of the two bolts. Once the toolholder 4 has threaded one end of the stud bolt 2, the cutting mechanism advances the saw disc 1 through the cutting mechanism to separate the stud bolt 2 from the process chuck, completing the product. The cutting mechanism's moving guide rails are linear guide rails 10, which are machined perpendicular to the bed rails, ensuring the cut surface is perpendicular to the workpiece axis.

[0021] The rotary motion of the cutting mechanism's saw disc 1 is achieved by a frequency-adjustable speed reduction motor 9 driven through a pair of gears 8. The saw disc 1 is compressed by a damping block 6 to prevent vibration. A servo motor 16 drives a ball screw 13 on a linear guide 10, achieving high-precision X-direction feed motion. The high-precision X-direction feed mechanism and saw disc rotary mechanism, mounted on the bed rails, enable high-precision and efficient cutting of the process chuck cutting surface.

[0022] This mechanism is fixedly mounted on a CNC horizontal lathe with three or more bed guide rails, and does not interfere with the tool holder 4 used for cutting parts on the CNC horizontal lathe. The cutting mechanism is composed of a bed 3 fixed bracket 5, an X-direction feed mechanism composed of a ball screw 13 transmission and a linear guide 10, a speed adjustment mechanism, a saw disk spindle support mechanism, etc., which can realize the cutting of the clamping section of the processing technology of the extra-long stud bolt 2. The traditional processing of extra-long stud bolts 2 used in heavy-duty stamping machines is to use a one-clamp-one-support method to process one end of the thread, and then turn around to process the other end of the thread after processing, which is very time-consuming, labor-intensive and space-consuming. The utility model solves the problems of the need for secondary clamping and adjustment when processing extra-long stud bolts 2, and the need for a large loading and unloading space when turning around, and realizes the completion of all processing with one clamp, thereby improving processing accuracy and processing efficiency, reducing production costs, and can be widely used in similar parts processing.

[0023] Specific as Figure 1-Figure 3 As shown, a cutting mechanism for processing extra-long stud bolts on a horizontal lathe is shown. The cutting mechanism places a slide plate 11 on two guide rails (a flat guide rail and a triangular guide rail) of the horizontal lathe bed 3, and is fixed to the bed 3 on the other side of the chuck with screws through a fixed bracket 5, and then pressed against the guide rails of the bed 3 with two pressing plates, so as to ensure that the entire device does not move along the axis of the workpiece.

[0024] The cutting mechanism and the tool holder 4 do not interfere with each other. When the tool holder 4 has processed the thread on one end of the stud 2, the cutting mechanism can be fed through the cutting mechanism saw disc 1 to cut the stud 2 and the process chuck apart to complete the processing of the product. The rotary motion of the cutting mechanism saw disc 1 is achieved by a frequency-adjustable speed reduction motor 9 through a pair of gears 8. The left end of the saw disc shaft 7 is supported by two tapered roller bearings and the right end is supported by a deep groove ball bearing 12. The saw disc is pressed by a damping block 6 to prevent the vibration of the saw disc. The cutting mechanism is driven by a servo motor 16 on a linear guide 10 through a coupling 15 to achieve high-precision feeding motion in the X direction. One end of the ball screw 13 is supported by a combined bearing 14 and the other end is supported by a pair of deep groove ball bearings 12.

[0025] The above diagrams and descriptions illustrate the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. The cutting mechanism for processing extra-long stud bolts on a horizontal lathe is characterized by: The invention comprises a fixed bracket (5), a linear guide rail (10) arranged on the fixed bracket (5), and a cutting mechanism arranged on the linear guide rail (10), wherein the cutting mechanism comprises a cutting mechanism saw disc (1); the cutting mechanism and the linear guide rail (10) are fixed to the other side of the bed (3) near the chuck through the fixed bracket (5); after the turning tool holder (4) processes the thread of one end of the stud bolt (2), the cutting mechanism can be fed through the cutting mechanism saw disc (1) to cut the stud bolt (2) and the process chuck apart, thereby completing the processing of the product; the movable guide rail of the cutting mechanism is the linear guide rail (10), and the linear guide rail (10) is ensured to be perpendicular to the bed guide rail to ensure that the cutting surface is perpendicular to the axis of the workpiece.

2. The cutting mechanism for machining extra-long stud bolts on a horizontal lathe according to claim 1, characterized in that: The rotary motion of the saw disc (1) of the cutting mechanism is achieved by a frequency-adjustable speed-reducing motor (9) through a pair of gears (8).

3. The cutting mechanism for machining extra-long stud bolts on a horizontal lathe according to claim 2, characterized in that: The cutting mechanism saw disk (1) is connected to a saw disk shaft (7), and the saw disk shaft (7) is provided with the gear (8) connected to the reduction motor (9).

4. The cutting mechanism for machining extra-long stud bolts on a horizontal lathe according to claim 3, characterized in that: The left end of the saw disk shaft (7) is supported by two tapered roller bearings, and the right end is supported by a deep groove ball bearing (12). The cutting mechanism is driven by a servo motor (16) through a coupling (15) on the linear guide rail (10) to drive a ball screw (13) to achieve high-precision feeding movement in the X direction. One end of the ball screw (13) is supported by a combined bearing (14), and the other end is supported by a pair of deep groove ball bearings (12).

5. The cutting mechanism for machining extra-long stud bolts on a horizontal lathe according to claim 4, characterized in that: The cutting mechanism is driven by the servo motor (16) on the linear guide rail (10) to drive the ball screw (13) to achieve high-precision feeding movement in the X direction.

6. The cutting mechanism for machining extra-long stud bolts on a horizontal lathe according to claim 1, characterized in that: A damping block (6) is provided on one side of the saw disc (1) of the cutting mechanism, and the damping block (6) is pressed to prevent the saw disc (1) of the cutting mechanism from vibrating.

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