Horizontal beveling machine

Abstract

The utility model discloses a horizontal beveling machine which comprises a lathe bed, an oil cylinder, a top beam, a stand column and a pull rod. A clamp is mounted on the lathe bed and is used for placing a pipe fitting; the stand column is fixed to the lathe bed, and the top beam can rotate on the stand column. One end of the pull rod is hinged to the bed body, and the other end of the pull rod is located in a notch formed in the top beam and can be separated from the notch through rotation; the oil cylinder is installed on the top beam, when the oil cylinder extends, the pipe fitting can be tightly pressed on the clamp, and at the moment, the pull rod located in the notch can lock the top beam. The problems that when an existing horizontal beveling machine is hoisted by means of hoisting equipment, interference is prone to occurring due to a top beam, and production accidents are caused are solved.

Description

Technical Field

[0001] The utility model relates to the field of pipe processing, in particular to a horizontal beveling machine. Background Art

[0002] The horizontal beveling machine is used for machining the ends of pipe fittings. It solves the shortcomings of flame cutting, grinder grinding and other operating processes such as irregular angles, rough slopes, and high working noise. It has the advantages of easy operation, standard angles, and smooth surfaces.

[0003] For pipes that are too heavy to be loaded and unloaded manually, they need to be loaded and unloaded with the help of lifting equipment such as electric hoists. Existing horizontal beveling machines are generally equipped with a top beam with an oil cylinder installed to press the pipes. The top beam is prone to interfere with the lifting equipment or the lifted pipes during the loading and unloading process of the pipes, which can easily cause production accidents. Summary of the invention

[0004] The utility model provides a horizontal beveling machine, so as to overcome the problem that the existing horizontal beveling machine is easily interfered with by the top beam when hoisting with the help of lifting equipment, thus causing production accidents.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A horizontal beveling machine comprises: a bed, a cylinder, a top beam, a column and a pull rod;

[0007] A fixture is installed on the bed, and the fixture is used to place pipe fittings;

[0008] The upright column is fixed on the bed, and the top beam can rotate on the upright column;

[0009] One end of the pull rod is hinged to the bed, and the other end of the pull rod is located in a notch opened on the top beam and can be disengaged from the notch by rotating;

[0010] The oil cylinder is installed on the top beam. When the oil cylinder is extended, the pipe fitting can be pressed against the clamp. At this time, the pull rod located in the notch can lock the top beam.

[0011] Furthermore, a groove processing mechanism is installed on the bed, and the milling cutter disc of the groove processing mechanism faces the fixture.

[0012] Further, it also includes a hinged support and a second nut;

[0013] The hinged support is fixed on the bed, one end of the pull rod is hinged to the hinged support, the other end of the pull rod is provided with an external thread connected to the second nut, and the pull rod is connected to the second nut through threads.

[0014] Furthermore, it also includes a pull rod limit block, which is fixed on the bed and is located on a side of the pull rod close to the groove processing mechanism.

[0015] Further, the milling cutter disc includes a main body, a slide seat, an adjustment bolt and an adjustment nut;

[0016] The main body is provided with a T-shaped slot, the head of the adjusting bolt can slide in the T-shaped slot, and the screw rod of the adjusting bolt is assembled with the adjusting nut after passing through the through hole provided on the slide seat;

[0017] When the adjusting bolt slides along the T-slot, the blade provided on the milling cutter mounted on the slide seat moves radially along the rotation center line of the milling cutter disc.

[0018] Further, the milling cutter is a beveling cutter, and the beveling cutter includes a second top screw plate, a swing block, a spring, a cutter body and a swing shaft mounting seat;

[0019] The second top screw plate is fixed on the slide seat, the second top screw plate is installed with a spring adjustment bolt, and the end of the spring adjustment bolt screw is fixed with a spring connecting plate;

[0020] The swing shaft mounting seat is fixed on the slide seat, one end of the swing block is rotatably connected to the swing shaft mounting seat through the swing shaft, the axis of the swing shaft is parallel to the rotation center line of the milling cutter disc, the other end of the swing block is fixedly connected to the spring, and the end of the spring away from the swing block is fixedly connected to the spring connecting plate;

[0021] The swing block is provided with a through hole, a blade mounting groove and a threaded hole connected to the blade mounting groove, the guide shaft is arranged in the through hole through a rolling bearing, the blade is arranged in the blade mounting groove, and the blade can be pressed in the blade mounting groove by a bolt installed on the threaded hole;

[0022] The blade is mounted on the cutter body, and an angle exists between the cutting edge of the blade and the rotation center line of the milling cutter disc.

[0023] Furthermore, the milling cutter is an end face cutter, and the end face cutter includes a fixing plate, a first top screw plate and a cutter body;

[0024] The fixing plate and the first top screw plate are fixed on the slide seat, the knife body is located between the fixing plate and the first top screw plate which are arranged opposite to each other, and the knife body can be pressed on the fixing plate by bolts installed on the first top screw plate;

[0025] The blade is mounted on the cutter body, and the cutting edge of the blade is oriented parallel to the rotation center line of the milling cutter disc.

[0026] Furthermore, the groove processing mechanism includes a power head, a slide plate, a slide rail and a feed cylinder;

[0027] The milling cutter disc is fixed to one end of the power head spindle close to the fixture;

[0028] One side of the slide plate is fixedly connected to the power head, and the other side of the slide plate is fixed with a slider, which is installed on the slide rail;

[0029] The feed oil cylinder is installed on the bed, and the telescopic rod of the feed oil cylinder is fixedly connected with the slide plate.

[0030] Furthermore, it also includes a counterweight block, which is fixed on the top beam, and the oil cylinder and the counterweight block are respectively located on both sides of the column.

[0031] Furthermore, it also includes a thrust ball bearing, a limit stop, a first nut and a sleeve;

[0032] The sleeve is fixed on the top beam, the sleeve can rotate on the column, the first nut is fixed on the end of the column away from the bed, and the first nut can prevent the sleeve from leaving the column;

[0033] The thrust ball bearing sleeve is arranged on the column, the seat ring of the thrust ball bearing abuts the sleeve, the shaft ring of the thrust ball bearing is fixed on the column, the limit stop is fixed on the column, and the top of the limit stop abuts the shaft ring of the thrust ball bearing.

[0034] Furthermore, it also includes a pressure head, the telescopic rod of the oil cylinder is fixedly connected to the pressure head, and the pressure head is arranged opposite to the clamp;

[0035] The telescopic rod of the oil cylinder can drive the pressure head to reciprocate in the vertical direction. When the oil cylinder is extended, the pressure head can press the pipe fitting onto the clamp.

[0036] Beneficial effects of the utility model:

[0037] The utility model provides a horizontal beveling machine, which compresses the pipe fittings by extending the oil cylinder on the top beam, and the top beam is lifted upward by the reaction force of the oil cylinder compressing the pipe fittings, and the position of the top beam is tightened and locked by the pull rod, so that when the pipe fittings need to be compressed, the top beam does not rotate at will, ensuring that the horizontal beveling machine can work normally;

[0038] When it is necessary to lift and unload materials, push the pull rod to make it disengage from the notch of the top beam. The top beam rotates on the column, so that the top beam can avoid the lifting equipment of the lifting pipe by rotating, preventing safety accidents caused by interference from the top beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 This is a front view of a horizontal beveling machine disclosed in the utility model;

[0041] Figure 2 It is a side view of a horizontal beveling machine disclosed in the utility model;

[0042] Figure 3 It is a top view of a horizontal beveling machine disclosed in the utility model;

[0043] Figure 4 It is a front view of a milling cutter disc of a horizontal beveling machine disclosed in the utility model;

[0044] Figure 5 It is a cross-sectional view of a milling cutter disc of a horizontal beveling machine disclosed in the utility model;

[0045] Figure 6 It is a front view of a beveling cutter of a horizontal beveling machine disclosed in the utility model;

[0046] Figure 7 The utility model discloses a front view of a flat knife of a horizontal beveling machine.

[0047] In the figure:

[0048] 1. Bed;

[0049] 2. Fixture;

[0050] 3. Oil cylinder;

[0051] 4. Milling cutter disc; 401. Main body; 402. T-slot; 403. Rolling bearing; 404. Sliding seat; 405. Fixed plate; 406. First top screw plate; 407. Second top screw plate; 408. Spring connecting plate; 409. Swing block; 410. Spring; 411. Spring adjustment bolt; 412. Cutter body; 413. Blade; 414. Swing shaft mounting seat; 415. Swing shaft; 416. Threaded hole; 417. Guide shaft; 418. Adjustment bolt; 419. Adjustment nut; 420. Cutter body mounting groove;

[0052] 5. Power head;

[0053] 6. Skateboard;

[0054] 7. Slide rail;

[0055] 8. Feed cylinder;

[0056] 9. Thrust ball bearing;

[0057] 10. Top beam; 1001. Notch;

[0058] 11. Pillar;

[0059] 12. Limit stop;

[0060] 13. First nut;

[0061] 14. Articulated support;

[0062] 15. Counterweight;

[0063] 16. Press head;

[0064] 17. Pull rod;

[0065] 18. Second nut;

[0066] 19. Pull rod limit block;

[0067] 20. Set;

[0068] 21. Cylinder seat;

[0069] B. Pipe fittings. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0071] This embodiment provides a horizontal beveling machine, such as Figure 2 As shown, it includes: a bed 1, a cylinder 3, a top beam 10, a column 11 and a pull rod 17;

[0072] like Figure 1 and Figure 2 As shown, a fixture 2 is installed on the bed 1, and the fixture 2 is installed on the bed 1 by bolts for easy replacement. The fixture 2 is used to place the pipe B;

[0073] The column 11 is welded and fixed on the bed 1, and the top beam 10 can rotate on the column 11;

[0074] One end of the pull rod 17 is hinged to the bed 1, and the other end of the pull rod 17 is located in the notch 1001 opened on the top beam 10 and can be rotated from Figure 3 The device is shown to be released from the notch 1001;

[0075] The oil cylinder 3 is installed on the top beam 10 by bolts. When the oil cylinder 3 is extended, the pipe B can be pressed against the clamp 2. At this time, the pull rod 17 located in the notch 1001 can lock the top beam 10.

[0076] The horizontal beveling machine provided in this embodiment extends the oil cylinder 3 on the top beam 10, thereby pressing the pipe B. The top beam 10 is lifted upward by the reaction force brought by the oil cylinder 3 pressing the pipe B. The position of the top beam 10 is tightened and locked by the pull rod 17, so that when the pipe B needs to be pressed, the top beam 10 does not rotate at will, ensuring that the horizontal beveling machine can work normally.

[0077] When it is necessary to lift and unload materials, the pull rod 17 is pushed to make it disengage from the notch 1001 of the top beam 10, and the top beam 10 rotates on the column 11, so that the top beam 10 can avoid the lifting equipment of the lifting pipe B by rotating, preventing safety accidents caused by interference from the top beam 10.

[0078] In a specific embodiment, a groove processing mechanism is also installed on the bed 1, such as Figure 1 As shown, the milling cutter disc 4 of the groove processing mechanism faces the fixture 2.

[0079] In a specific embodiment, Figure 2 As shown, it also includes a hinged support 14 and a second nut 18;

[0080] The hinged support 14 is welded and fixed on the bed 1, one end of the pull rod 17 is hinged to the hinged support 14, and the other end of the pull rod 17 is provided with an external thread connected to the second nut 18, and the pull rod 17 and the second nut 18 are connected by threads;

[0081] During actual use, it is necessary to adjust the position of the second nut 18. When the pull rod 17 is located in the notch 1001, the cylinder 3 extends to compress the pipe B, and the top beam 10 is lifted upward by the reaction force brought by the cylinder 3 compressing the pipe B. At this time, the operator screws the second nut 18 until the pull rod 17 tightens the top beam 10. When the cylinder 3 contracts, the operator turns the pull rod 17 to remove the pull rod 17 from the notch 1001.

[0082] In a specific embodiment, Figure 1 As shown, it also includes a tie rod limit block 19, which is welded and fixed on the bed 1 and is located on the side of the tie rod 17 close to the groove processing mechanism to prevent the tie rod 17 from hitting the groove processing mechanism.

[0083] In a specific embodiment, Figures 4 to 7 As shown, the milling cutter disc 4 includes a main body 401, a slide seat 404, an adjustment bolt 418 and an adjustment nut 419;

[0084] like Figure 4 As shown, a T-slot 402 is provided on the main body 401, and the head of the adjusting bolt 418 can slide in the T-slot 402, and the screw of the adjusting bolt 418 is assembled with the adjusting nut 419 after passing through the through hole provided on the slide seat 404;

[0085] When the adjusting bolt 418 slides along the T-slot 402, the blade 413 provided on the milling cutter installed on the slide 404 moves radially along the rotation center line of the milling cutter disc 4 to adapt to pipe fittings B of different diameters;

[0086] When the slide 404 needs to be moved, the adjusting nut 419 is loosened to allow the head of the adjusting bolt 418 to slide along the T-slot 402 . When the slide 404 moves to a desired position, the adjusting nut 419 is tightened to complete locking.

[0087] In a specific embodiment, Figure 6 As shown, the milling cutter is a beveling cutter, and the beveling cutter includes a second top screw plate 407, a swing block 409, a spring 410, a cutter body 412 and a swing shaft mounting seat 414;

[0088] The second top screw plate 407 is welded and fixed on the slide seat 404. The second top screw plate 407 is installed with a spring adjustment bolt 411. The end of the screw rod of the spring adjustment bolt 411 is welded and fixed with a spring connecting plate 408.

[0089] The swing shaft mounting seat 414 is fixed on the slide 404 by bolts, one end of the swing block 409 is rotatably connected to the swing shaft mounting seat 414 through the swing shaft 415, the axis of the swing shaft 415 is parallel to the rotation center line of the milling cutter disc 4, the other end of the swing block 409 is welded and fixed to the spring 410, and the end of the spring 410 away from the swing block 409 is welded and fixed to the spring connecting plate 408;

[0090] like Figure 5 As shown, the swing block 409 is provided with a through hole, a blade mounting groove 420 and a threaded hole 416 connected to the blade mounting groove 420, the guide shaft 417 is arranged in the through hole through the rolling bearing 403, the blade 412 is arranged in the blade mounting groove 420, the blade 412 can be pressed in the blade mounting groove 420 by the bolts installed on the threaded hole 416, and the position of the blade 412 in the blade mounting groove 420 can be adjusted by loosening and tightening the bolts;

[0091] The blade 413 is mounted on the blade body 412 by bolts. Figure 5 As shown in the upper part, there is an angle (edge ​​inclination) between the cutting edge of the blade 413 and the rotation center line of the milling cutter disc 4, which is used to process the groove of the pipe B;

[0092] The elastic force generated by the spring 410 keeps the guide shaft 417 and the blade 413 always close to the pipe wall of the pipe B, which is suitable for large-diameter pipes with poor roundness and uneven wall thickness, and effectively ensures the quality of the groove after processing;

[0093] By screwing the spring adjustment bolt 411 on the second top screw plate 407 , the expansion and contraction amount of the spring 410 is fine-tuned so that the guide shaft 417 fits the pipe fitting B better.

[0094] In a specific embodiment, Figure 7 As shown, the milling cutter is an end cutter, and the end cutter includes a fixing plate 405, a first top screw plate 406 and a cutter body 412;

[0095] The fixing plate 405 and the first top screw plate 406 are welded and fixed on the slide 404, and the knife body 412 is located between the fixing plate 405 and the first top screw plate 406 which are arranged opposite to each other. The knife body 412 can be pressed on the fixing plate 405 by bolts installed on the first top screw plate 406;

[0096] The blade 413 is mounted on the blade body 412 by bolts. Figure 5 As shown in the lower part, the cutting edge of the blade 413 is parallel to the rotation center line of the milling cutter disc 4 (the cutting edge is horizontal) and is used to process the end face of the pipe B.

[0097] In a specific embodiment, Figure 1 and Figure 3 As shown, the groove processing mechanism includes a power head 5, a slide plate 6, a slide rail 7 and a feed cylinder 8;

[0098] The main body 401 of the milling cutter disc 4 is fixed to one end of the main shaft of the power head 5 close to the fixture 2 by a threaded fastener, and the radial direction of the main shaft of the power head 5 is the radial direction of the rotation center line of the milling cutter disc 4;

[0099] One side of the slide plate 6 is fixedly connected to the power head 5 by bolts, and the other side of the slide plate 6 is fixed with a slider by bolts, and the slider is installed on the slide rail 7;

[0100] The feed cylinder 8 is mounted on the cylinder seat 21 by bolts, the cylinder seat 21 is fixed to the bed 1 by bolts, and the telescopic rod of the feed cylinder 8 is fixedly connected to the slide plate 6 by bolts.

[0101] In a specific embodiment, Figure 2As shown, it also includes a counterweight block 15, which is welded and fixed on the top beam 10, and the oil cylinder 3 and the counterweight block 15 are respectively located on both sides of the column 11.

[0102] In a specific embodiment, Figure 2 As shown, it also includes a thrust ball bearing 9, a limit stop 12, a first nut 13 and a sleeve 20;

[0103] The sleeve 20 is fixed on the top beam 10 (it can be welded or a hole is opened on the top beam 10 to fit with the sleeve 20, and the sleeve 20 is installed in the hole). The sleeve 20 can rotate on the column 11. The first nut 13 is fixed to the end of the column 11 away from the bed 1 by threads. The first nut 13 can prevent the sleeve 20 from being separated from the column 11.

[0104] The thrust ball bearing 9 is sleeved on the column 11, the seat ring of the thrust ball bearing 9 abuts the sleeve 20, the shaft ring of the thrust ball bearing 9 is fixed on the column 11, the limit stop 12 is welded and fixed on the column 11, and the top of the limit stop 12 abuts the shaft ring of the thrust ball bearing 9, providing a rotation basis for the top beam 10 through the thrust ball bearing 9.

[0105] In a specific embodiment, Figure 2 As shown, it also includes a pressure head 16, the pressure head 16 is provided with an internal thread, the end of the telescopic rod of the oil cylinder 3 is provided with an external thread, the telescopic rod of the oil cylinder 3 is connected to the pressure head 16 through a thread, and the pressure head 16 is arranged opposite to the clamp 2;

[0106] The telescopic rod of the oil cylinder 3 can drive the pressing head 16 to reciprocate in the vertical direction. When the oil cylinder 3 is extended, the pressing head 16 can press the pipe B onto the clamp 2.

[0107] In actual use, when the end of pipe B has many burrs / unevenness, a beveling cutter and an end facing cutter can be installed on the main body 401 at the same time, and the pipe B can be milled together by the blades 413 with inclined edges and horizontal edges, so that the end of pipe B can be milled flat while beveling.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A horizontal beveling machine, characterized in that: include: A bed (1), a cylinder (3), a top beam (10), a column (11) and a pull rod (17); A fixture (2) is installed on the bed (1), and the fixture (2) is used to place the pipe (B); The column (11) is fixed on the bed (1), and the top beam (10) can rotate on the column (11); One end of the pull rod (17) is hinged to the bed (1), and the other end of the pull rod (17) is located in a notch (1001) opened on the top beam (10) and can be released from the notch (1001) by rotation; The oil cylinder (3) is installed on the top beam (10). When the oil cylinder (3) is extended, the pipe (B) can be pressed tightly against the clamp (2). At this time, the pull rod (17) located in the notch (1001) can lock the top beam (10).

2. A horizontal beveling machine according to claim 1, characterized in that: A groove processing mechanism is also installed on the bed (1), and the milling cutter disc (4) of the groove processing mechanism faces the fixture (2).

3. A horizontal beveling machine according to claim 1, characterized in that: Also includes a hinged support (14) and a second nut (18); The hinged support (14) is fixed on the bed (1), one end of the pull rod (17) is hinged to the hinged support (14), the other end of the pull rod (17) is provided with an external thread connected to the second nut (18), and the pull rod (17) and the second nut (18) are connected by threads.

4. A horizontal beveling machine according to claim 2, characterized in that: It also includes a pull rod limit block (19), which is fixed on the bed (1) and is located on a side of the pull rod (17) close to the groove processing mechanism.

5. A horizontal beveling machine according to claim 2, characterized in that: The milling cutter disc (4) comprises a main body (401), a slide seat (404), an adjustment bolt (418) and an adjustment nut (419); The main body (401) is provided with a T-shaped slot (402), the head of the adjusting bolt (418) can slide in the T-shaped slot (402), and the screw rod of the adjusting bolt (418) is assembled with the adjusting nut (419) after passing through a through hole provided on the sliding seat (404); When the adjusting bolt (418) slides along the T-slot (402), the blade (413) provided on the milling cutter mounted on the slide seat (404) moves radially along the rotation center line of the milling cutter disc (4).

6. A horizontal beveling machine according to claim 5, characterized in that: The milling cutter is a beveling cutter, and the beveling cutter comprises a second top screw plate (407), a swing block (409), a spring (410), a cutter body (412) and a swing shaft mounting seat (414); The second top screw plate (407) is fixed on the slide seat (404), the second top screw plate (407) is installed with a spring adjustment bolt (411), and the end of the screw rod of the spring adjustment bolt (411) is fixed with a spring connecting plate (408); The swing shaft mounting seat (414) is fixed on the slide seat (404), one end of the swing block (409) is rotatably connected to the swing shaft mounting seat (414) via a swing shaft (415), the axis of the swing shaft (415) is parallel to the rotation center line of the milling cutter disc (4), the other end of the swing block (409) is fixedly connected to the spring (410), and the end of the spring (410) away from the swing block (409) is fixedly connected to the spring connecting plate (408); The swing block (409) is provided with a through hole, a blade mounting groove (420) and a threaded hole (416) connected to the blade mounting groove (420); the guide shaft (417) is arranged in the through hole via a rolling bearing (403); the blade (412) is arranged in the blade mounting groove (420); and the blade (412) can be pressed in the blade mounting groove (420) by a bolt installed in the threaded hole (416); The blade (413) is mounted on the cutter body (412), and an angle exists between the direction of the cutting edge of the blade (413) and the rotation center line of the milling cutter disc (4).

7. A horizontal beveling machine according to claim 5, characterized in that: The milling cutter is an end face cutter, and the end face cutter comprises a fixing plate (405), a first top screw plate (406) and a cutter body (412); The fixing plate (405) and the first top screw plate (406) are fixed on the slide seat (404), the knife body (412) is located between the fixing plate (405) and the first top screw plate (406) which are arranged opposite to each other, and the knife body (412) can be pressed on the fixing plate (405) by bolts installed on the first top screw plate (406); The blade (413) is mounted on the cutter body (412), and the cutting edge of the blade (413) is oriented parallel to the rotation center line of the milling cutter disc (4).

8. The horizontal beveling machine according to claim 2, characterized in that: The groove processing mechanism comprises a power head (5), a slide plate (6), a slide rail (7) and a feed cylinder (8); The milling cutter disc (4) is fixed to one end of the main shaft of the power head (5) close to the fixture (2); One side of the slide plate (6) is fixedly connected to the power head (5), and the other side of the slide plate (6) is fixed with a slider, which is mounted on a slide rail (7); The feed oil cylinder (8) is installed on the bed (1), and the telescopic rod of the feed oil cylinder (8) is fixedly connected to the slide plate (6).

9. The horizontal beveling machine according to claim 1, characterized in that: It also includes a thrust ball bearing (9), a limit stopper (12), a first nut (13) and a sleeve (20); The sleeve (20) is fixed on the top beam (10), the sleeve (20) can rotate on the column (11), the first nut (13) is fixed on an end of the column (11) away from the bed (1), and the first nut (13) can prevent the sleeve (20) from detaching from the column (11); The thrust ball bearing (9) is sleeved on the column (11), the seat ring of the thrust ball bearing (9) abuts the sleeve (20), the shaft ring of the thrust ball bearing (9) is fixed on the column (11), the limit stop (12) is fixed on the column (11), and the top of the limit stop (12) abuts the shaft ring of the thrust ball bearing (9).

10. The horizontal beveling machine according to claim 1, characterized in that: It also includes a pressure head (16), the telescopic rod of the oil cylinder (3) is fixedly connected to the pressure head (16), and the pressure head (16) is arranged opposite to the clamp (2); The telescopic rod of the oil cylinder (3) can drive the pressure head (16) to reciprocate in the vertical direction. When the oil cylinder (3) is extended, the pressure head (16) can press the pipe (B) onto the clamp (2).

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