Double-end chamfering machine

Abstract

The utility model discloses a double -end chamfering machine, including fixed base and two groups of chamfering mechanism, two groups of chamfering mechanism all include mobile platform and mobile seat, be installed with a set of chamfering actuating mechanism on the mobile seat, through the adjustable mounting of adjusting support, the chamfering actuating mechanism includes support cover and motor no.

Description

Technical Field

[0001] This utility model belongs to the field of pipe fitting processing machinery design, and in particular a double-head chamfering machine. Background Technology

[0002] Pipe fittings, as a commonly used material, often require chamfering at both ends before use. However, due to processing errors, the concentricity of the two ends of long pipe fittings is prone to problems. Existing double-head chamfering equipment, capable of simultaneously chamfering both ends, is also prone to developing concentricity discrepancies on both sides after prolonged use. To address this concentricity issue, existing chamfering equipment includes adjustable features, but primarily only the material support plate for positioning is adjustable, and this adjustment is cumbersome. This results in inconvenient, time-consuming, and labor-intensive operation, heavily reliant on experience, and difficulty in guaranteeing accuracy. Consequently, concentricity errors remain significant, failing to meet the chamfering requirements of products with high concentricity standards. Furthermore, the concentricity characteristics of each batch of pipe fittings may vary; for products with high concentricity requirements, a substantial amount of time must be invested in adjustment each time, severely impacting processing efficiency. Utility Model Content

[0003] To overcome the shortcomings of the existing technology mentioned above, this utility model provides a double-headed chamfering machine that is easy and flexible to adjust.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A double-head chamfering machine includes a fixed base 100 and two sets of chamfering mechanisms 300 arranged opposite each other on the fixed base 100 to support the two ends of a pipe fitting 200 and simultaneously chamfer both ends of the pipe fitting 200. Each set of chamfering mechanisms 300 includes a movable platform 1 located below and a movable seat 2 that can move left and right on the movable platform 1. The movable platform 1 is slidably arranged above the fixed base 100 and can move left and right along the fixed base 100. A chamfering actuator is adjustablely mounted on the movable seat 2 via an adjustable support 3. The chamfering actuator includes a support sleeve 4 and a motor 5 fixedly arranged with the support sleeve 4. The front end of the motor 5 is also provided with a chamfering cutter disc 6 controlled by it to rotate. The chamfering cutter disc 6 is provided with a chamfering cutter. The support sleeve 4 is movable up and down on the adjustable support 3. The adjustable support 3 is movable back and forth on the movable seat 2. The mobile platform 1 is also fixedly provided with a placement seat 7. Above the placement seat, there is a pressing seat 9 that can cooperate with the placement seat 7 to press the end of the pipe fitting 200 and is controlled by a cylinder 8 to raise and lower. The placement seat 7 is provided with a positioning groove 71 and a pressing groove 72 in sequence in the feeding direction. The chamfered cutter head 6 corresponds to the pressing groove 72. A fixed stop block 10 is provided behind the positioning groove 71 on one of the mobile platforms 1. A positioning push block 12 that is controlled to move back and forth by a cylinder 11 is provided behind the positioning groove 71 on the other mobile platform 1. The fixed base 100 is also provided with a stepping circulating feeding device 400 for feeding the pipe fittings one by one to the positioning groove 71 and the pressing groove 72 on the placement seat and then feeding them away. The stepping circulating feeding device 400 includes a transfer plate 13 and a transfer plate driving structure that can drive the transfer plate 13 to rotate eccentrically. The transfer plate 13 is located between two placement seats 7. The transfer plate 13 is provided with a plurality of transfer grooves 131 evenly spaced on it. The transfer grooves 131 cooperate with the positioning groove 71 and the pressing groove 72 on the placement seat 7 respectively. The chamfering cutter heads 6 on the two movable seats 2 are arranged opposite each other so that the two ends of the pipe fitting 200 can be chamfered at the same time; The fixed blocks 10 and positioning push blocks 12 on the two mobile platforms 1 are arranged opposite each other to facilitate flattening and positioning of the two ends of the pipe fitting 200.

[0005] Preferably, a feeding device 500 is also provided next to the fixed base 100 and at the feeding end of the stepping circulating feeding device 400.

[0006] Preferably, the transfer plate driving structure includes an eccentric drive unit for driving the eccentric rotation of the transfer plate 13 and a guide unit for guiding the eccentric rotation of the transfer plate. The guide unit includes a horizontal guide rail 41 and a vertical guide rail 42. The horizontal guide rail 41 is fixedly connected to the moving platform 1, and the vertical guide rail 42 is slidably mounted on the horizontal guide rail 41 via a slider. The transfer plate 13 is slidably mounted on the vertical guide rail 42 via a slider. The cooperation of the horizontal guide rail 41 and the vertical guide rail 42 facilitates the regular and stable eccentric circular motion of the transfer plate 13 to achieve step-by-step feeding.

[0007] More preferably, the stepping circulating feeding device 400 includes two parallel transfer plates 13, which are located next to two placement seats 7. The eccentric drive unit includes a second motor 43, a transmission shaft 44, and two sets of sprocket and chain transmission structures 45. The output ends of the two sets of sprocket and chain transmission structures 45 are connected to the side shafts of the two transfer plates 13 through eccentric plates so as to drive the transfer plates 13 to rotate eccentrically. The second motor 43 drives the two sets of sprocket and chain transmission structures 45 to move through the transmission shaft 44, thereby driving the two transfer plates 13 to rotate eccentrically at the same time, realizing stepping circulating feeding.

[0008] Furthermore, the second motor 43 and the transmission shaft 44 are mounted on the fixed base 100, and the output ends of the two sprocket and chain drive structures 45 are mounted on the mobile platform 1.

[0009] Preferably, the fixed base 100 is provided with a linear drive device 14, and the mobile platform 1 is installed on the output end of the linear drive device 14. More preferably, the linear drive device 14 is a lead screw and nut sleeve linear drive device.

[0010] Preferably, the mobile platform 1 is equipped with a cylinder 3 15, and the mobile seat 2 is mounted on the output end of the cylinder 3 15.

[0011] Preferably, the cylinder 8 is mounted on the mobile platform 1 via a bracket 81, and the top pressure seat 8 is mounted on the output end of the cylinder 8.

[0012] Preferably, the adjusting support 3 has a C-shaped structure, and the support sleeve 4 is inserted into the C-shaped structure.

[0013] More preferably, the output end of motor 5 is inserted into the support sleeve 4.

[0014] Preferably, an adjusting block 31 is fixedly provided on both the front and rear sides of the movable base 2 and the adjusting support 3. Several front and rear adjusting nuts 32 are threaded through the adjusting block 31, with their front ends contacting the adjusting support 3. By adjusting the position of the front and rear adjusting nuts 32, the front and rear position of the adjusting support 3 on the movable base 2 can be adjusted. More preferably, the surface of the adjusting support 3 in contact with the movable base 2 is provided with an adjusting hole 33 for a locking nut 36 to pass through. The movable base 2 also has a corresponding adjusting hole for the locking nut 36 to pass through, so that the adjusting support 3 can be locked and positioned after its front and rear position relative to the movable base 2 has been adjusted.

[0015] Preferably, the adjusting support 3 is provided with adjusting nuts 34 on both the upper and lower sides surrounding the support sleeve 4. By adjusting the position of the adjusting nuts 34, the vertical position of the support sleeve 4 on the adjusting support 3 can be adjusted. More preferably, the side of the adjusting support 3 that contacts the support sleeve 4 is provided with an adjusting hole 35 for inserting a locking nut 36, so that the support sleeve 4 can be locked and positioned after the vertical position of the support sleeve 4 relative to the adjusting support 3 is adjusted.

[0016] The beneficial effects of this utility model are: This utility model of a double-head chamfering machine has a clever structure. By fixing the placement base, the chamfering blade head can be adjusted up, down, forward, and backward in a convenient manner. This allows for easy and precise adjustment of the chamfering position as needed. It can be reasonably adjusted according to the concentricity of the two ends of each batch or each pipe fitting to ensure chamfering concentricity, meet customer needs, and the equipment is easy to maintain, highly practical, and worthy of promotion. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a three-dimensional structural diagram of the double-head chamfering machine according to an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the double-head chamfering machine from another angle, according to an embodiment of the present invention. Figure 3 for Figure 2 Front view structural diagram; Figure 4 for Figure 2 A schematic diagram of the rear view structure; Figure 5 This is a three-dimensional structural diagram of a double-head chamfering machine without a feeding device according to an embodiment of the present utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 for Figure 5 A schematic diagram of the rear view structure; Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure along the AA direction; Figure 9 This is a three-dimensional structural diagram of the chamfering mechanism in an embodiment of the present utility model; Figure 10 This is a three-dimensional structural diagram of the chamfering mechanism portion from another angle in an embodiment of this utility model; Figure 11 This is a three-dimensional structural diagram of the chamfering mechanism portion from two other angles in an embodiment of this utility model; Figure 12This is a three-dimensional structural diagram of the chamfering mechanism portion from three other angles in an embodiment of this utility model; Figure 13 for Figure 12 Enlarged view of point B in the image; Figure 14 This is a three-dimensional structural diagram of the structure on the movable seat in an embodiment of the present utility model; Figure 15 This is a three-dimensional structural diagram of the structure on the movable seat in an embodiment of the present invention from another angle. Detailed Implementation

[0018] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0019] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0020] like Figure 1-15 As shown, the double-head chamfering machine includes a fixed base 100 and two sets of chamfering mechanisms 300 arranged opposite each other on the fixed base 100 to support the two ends of the pipe fitting 200 and simultaneously chamfer both ends of the pipe fitting 200. Each set of chamfering mechanisms 300 includes a movable platform 1 located below and a movable seat 2 that is slidably mounted on the movable platform 1 via a guide rail. The movable platform 1 is slidably mounted on the fixed base 100 via the guide rail and can move left and right along the fixed base 100. A chamfering actuator is tunably mounted on the movable seat 2 via an adjustable support 3. The chamfering actuator includes a support sleeve 4 and a motor 5 fixedly mounted to the support sleeve 4. The front end of the motor 5 is also provided with a chamfering cutter disc 6 controlled by it to rotate. The chamfering cutter disc 6 is provided with a chamfering cutter. The support sleeve 4 is movably mounted on the adjustable support 3, and the adjustable support 3 is movably mounted on the movable seat 2. The mobile platform 1 is also fixedly provided with a placement seat 7. Above the placement seat, there is also a pressing seat 9, which is controlled by a cylinder 8 to lift and lower and can cooperate with the placement seat 7 to press the end of the pipe fitting 200. The placement seat 7 is provided with a positioning groove 71 and a pressing groove 72 in sequence in the feeding direction. In front of the positioning groove 71 and behind the pressing groove 72, there is also a pipe fitting placement groove to facilitate material receiving and discharging. The chamfering cutter head 6 corresponds to the pressing groove 72. On one of the mobile platforms 1, behind the positioning groove 71, there is a fixed stop block 10. On the other mobile platform 1, behind the positioning groove 71, there is a positioning push block 12 whose movement is controlled by a cylinder 11. The fixed base 100 is also provided with a stepping circulating feeding device 400 for feeding the pipe fittings one by one to the positioning groove 71 and the pressing groove 72 on the placement seat and then feeding them away. The stepping circulating feeding device 400 includes a transfer plate 13 and a transfer plate driving structure that can drive the transfer plate 13 to rotate eccentrically. The transfer plate 13 is located between two placement seats 7. The transfer plate 13 is provided with a plurality of transfer grooves 131 evenly spaced on it. The transfer grooves 131 cooperate with the positioning groove 71, the pressing groove 72 and the pipe fitting placement groove on the placement seat 7 respectively. The chamfering cutter heads 6 on the two movable seats 2 are arranged opposite each other so that the two ends of the pipe fitting 200 can be chamfered at the same time; The fixed blocks 10 and positioning push blocks 12 on the two mobile platforms 1 are arranged opposite each other to facilitate flattening and positioning of the two ends of the pipe fitting 200.

[0021] Next to the fixed base 100 and at the feeding end of the stepping circulating feeding device 400, a feeding device 500 is also provided.

[0022] The transfer plate drive structure includes an eccentric drive unit for driving the eccentric rotation of the transfer plate 13 and a guide unit for guiding the eccentric rotation of the transfer plate. The guide unit includes a horizontal guide rail 41 and a vertical guide rail 42. The horizontal guide rail 41 is fixedly connected to the moving platform 1, and the vertical guide rail 42 is slidably mounted on the horizontal guide rail 41 via a slider. The transfer plate 13 is slidably mounted on the vertical guide rail 42 via a slider. The cooperation of the horizontal guide rail 41 and the vertical guide rail 42 facilitates the transfer plate 13 to achieve regular and stable eccentric circular motion to realize step-by-step feeding.

[0023] More preferably, the stepping circulating feeding device 400 includes two parallel transfer plates 13, which are located next to two placement seats 7. The eccentric drive unit includes a second motor 43, a transmission shaft 44, and two sets of sprocket and chain transmission structures 45. The output ends of the two sets of sprocket and chain transmission structures 45 are connected to the side shafts of the two transfer plates 13 through eccentric plates so as to drive the transfer plates 13 to rotate eccentrically. The second motor 43 drives the two sets of sprocket and chain transmission structures 45 to move through the transmission shaft 44, thereby driving the two transfer plates 13 to rotate eccentrically at the same time, realizing stepping circulating feeding.

[0024] Furthermore, the second motor 43 and the transmission shaft 44 are mounted on the fixed base 100, and the output ends of the two sprocket and chain drive structures 45 are mounted on the mobile platform 1.

[0025] Preferably, the fixed base 100 is provided with a linear drive device 14, and the mobile platform 1 is installed on the output end of the linear drive device 14. More preferably, the linear drive device 14 is a lead screw and nut sleeve linear drive device, which is a known existing device.

[0026] The mobile platform 1 is equipped with a cylinder 3 15, and the mobile base 2 is installed on the output end of the cylinder 3 15.

[0027] The cylinder 8 is mounted on the mobile platform 1 via a bracket 81, and the top pressure seat 8 is mounted on the output end of the cylinder 8.

[0028] The adjusting support 3 has a C-shaped structure, and the support sleeve 4 is inserted into the C-shaped structure.

[0029] The output end of motor 5 is inserted into the support sleeve 4.

[0030] An adjusting block 31 is fixedly installed on both the front and rear sides of the movable base 2 and the adjusting support 3. Several front and rear adjusting nuts 32 are threaded through the adjusting block 31, with their front ends contacting the adjusting support 3. By adjusting the position of the front and rear adjusting nuts 32, the front and rear position of the adjusting support 3 on the movable base 2 can be adjusted. More preferably, the surface of the adjusting support 3 in contact with the movable base 2 is provided with an adjusting hole 33 for a locking nut 36 to pass through. The movable base 2 also has a corresponding adjusting hole for the locking nut 36 to pass through, so that the adjusting support 3 can be locked and positioned after its front and rear position relative to the movable base 2 has been adjusted.

[0031] The adjusting support 3 is provided with adjusting nuts 34 on both the upper and lower sides surrounding the support sleeve 4. By adjusting the position of the adjusting nuts 34, the vertical position of the support sleeve 4 on the adjusting support 3 can be adjusted. More preferably, the side of the adjusting support 3 that contacts the support sleeve 4 is provided with an adjusting hole 35 for passing a locking nut 36, so that the support sleeve 4 can be locked and positioned after the vertical position of the support sleeve 4 relative to the adjusting support 3 is adjusted.

[0032] Working principle: When chamfering is required on the pipe fitting 200, the linear drive device 14 pushes the moving platform 1 to bring the two moving platforms 1 closer together to the working position, and the working position can be adjusted according to the length of the pipe fitting 200. The feeding device 500 feeds the two transfer plates 13 of the stepping circulating feeding device 400, and then the transfer plates 13 carry the pipe fitting 200 into the positioning groove 71 and the pressing groove 72 of the placement seat 7 in sequence. The fixed stop block 10 and the positioning push block located next to the positioning groove 71 are used to move the pipe fitting 200. The positioning push block 12 is used to position the two ends of the pipe fitting 200. The positioning push block 12 is pushed by the cylinder 11. On the pressure groove 72, the pipe fitting 200 is fixed by the placement seat 7 and the top pressure groove 9 located above the placement seat 7. Then, the two moving seats 2 are moved to the chamfering position in the middle under the drive of the two cylinders 15. Then, the chamfering cutter 6 is rotated by the motor 5 to chamfer the two ends of the pipe fitting 200. After the processing is completed, the transfer plate 13 continues to carry the pipe fitting 200 to the unloading position.

[0033] Before use, the front and rear position of the chamfering cutter head 6 can be adjusted by adjusting the front and rear adjusting nuts 32 on the adjusting blocks 31 located on both sides of the adjusting support 3 (specifically, first loosen the locking nut 36 on the surface where the adjusting support 3 contacts the moving seat 1, so that the adjusting support 3 is loosened, then adjust the push-out position of the front and rear adjusting nuts 32 to adjust the front and rear position of the adjusting support 3 relative to the moving seat 2, and after adjustment, tighten the locking nut 36 on the surface where the adjusting support 3 contacts the moving seat 2 to lock and position the adjusting support 3, that is, lock and position the front and rear position of the chamfering cutter head 6); by adjusting the upper part of the adjusting support 3 surrounding the support sleeve 4... The vertical adjustment nuts 34 on both sides can be used to adjust the vertical position of the chamfering cutter head 6 (specifically, first loosen the locking nut 36 on the side where the adjusting support 3 contacts the support sleeve 4, so that the support sleeve 4 is loosened, then adjust the vertical position of the vertical adjustment nut 34 to adjust the height of the support sleeve 4, and after adjustment, tighten the locking nut 36 on the side of the adjusting support 3 to lock and position the support sleeve 4, that is, lock and position the vertical position of the chamfering cutter head 6); the left and right movement of the chamfering cutter head 6 is achieved by adjusting the moving feed of the moving seat 2. Therefore, the vertical and forward / backward position adjustment of the chamfering cutter head 6 is very convenient and can meet different concentricity adjustment requirements.

[0034] Therefore, the double-head chamfering machine of this utility model, by fixing the placement seat, allows the chamfering blade to be adjusted up, down, forward, and backward in a convenient manner. This makes it easy to adjust the chamfering position accurately and quickly as needed, and can be reasonably adjusted according to the concentricity of the two ends of each batch or each pipe fitting, ensuring the concentricity of the chamfering, meeting customer needs. Moreover, the equipment is easy to maintain, highly practical, and worthy of promotion.

[0035] Specifically, the chamfering cutter head is fixed to the adjusting support by adjusting the height up and down using the upper and lower adjusting nuts. The adjusting support is fixed to the moving base by adjusting the front and rear using the front and rear adjusting nuts (so that the position of the chamfering cutter head can be adjusted up and down and back and forth according to the concentricity characteristics of each batch of pipe fittings). The moving base is set on the moving platform by the drive of cylinder three (so that after the pipe fitting is positioned, the chamfering cutter head can be brought close to the end of the pipe fitting for chamfering). The moving platform can move left and right along the fixed base by the linear drive structure of the screw nut sleeve.

[0036] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A double-headed chamfering machine, comprising a fixed base (100) and two sets of chamfering mechanisms (300) arranged opposite each other on the fixed base (100) for supporting both ends of a pipe fitting (200) and simultaneously chamfering both ends of the pipe fitting (200), characterized in that, Both sets of chamfering mechanisms (300) include a movable platform (1) located below and a movable seat (2) that can move left and right above the movable platform (1). The movable platform (1) is slidably mounted above the fixed base (100) and can move left and right along the fixed base (100). On the movable seat (2), a chamfering actuator is adjustablely mounted via an adjustable support (3). The chamfering actuator includes a support sleeve (4) and a motor (5) fixedly mounted to the support sleeve (4). At the front end of the motor (5), there is also a chamfering cutter disc (6) controlled by it to rotate. The chamfering cutter disc (6) is equipped with a chamfering cutter. The support sleeve (4) can move up and down on the adjustable support (3). The adjustable support (3) can move back and forth on the movable seat (2). On the mobile platform (1), a placement seat (7) is also fixedly provided. Above the placement seat, a top pressing seat (9) is provided, which is controlled by cylinder one (8) to lift and press the end of the pipe fitting (200) in conjunction with the placement seat (7). The placement seat (7) is provided with a positioning groove (71) and a pressing groove (72) in sequence in the feeding direction. The chamfered cutter disc (6) corresponds to the pressing groove (72). On one of the mobile platforms (1), behind the positioning groove (71), a fixed stop block (10) is provided. On the other mobile platform (1), behind the positioning groove (71), a positioning push block (12) is provided, which is controlled by cylinder two (11) to move back and forth. The fixed base (100) is also provided with a positioning groove (71) and a pressing groove (72) for feeding the pipe fittings one by one to the placement seat (7) and then feeding them away. The stepping circulating feeding device (400) includes a transfer plate (13) and a transfer plate driving structure that can drive the transfer plate (13) to rotate eccentrically. The transfer plate (13) is located between two placement seats (7). The transfer plate (13) is provided with a plurality of transfer grooves (131) evenly spaced on it. The transfer grooves (131) cooperate with the positioning groove (71) and the pressing groove (72) on the placement seat (7) respectively. The chamfering cutter discs (6) on the two movable seats (2) are arranged opposite each other so that the two ends of the pipe fitting (200) can be chamfered at the same time; The fixed blocks (10) and positioning push blocks (12) on the two mobile platforms (1) are set opposite to each other so as to flatten and position the two ends of the pipe fitting (200).

2. The double-head chamfering machine according to claim 1, characterized in that, Next to the fixed base (100) and at the feeding end of the stepping circulating feeding device (400), a feeding device (500) is also provided.

3. The double-head chamfering machine according to claim 1, characterized in that, The transfer plate drive structure includes an eccentric drive unit for driving the transfer plate (13) to rotate eccentrically and a guide unit for guiding the eccentric rotation of the transfer plate. The guide unit includes a horizontal guide rail (41) and a vertical guide rail (42). The horizontal guide rail (41) is fixedly connected to the moving platform (1). The vertical guide rail (42) is slidably mounted on the horizontal guide rail (41) by a slider. The transfer plate (13) is slidably mounted on the vertical guide rail (42) by a slider.

4. The double-head chamfering machine according to claim 3, characterized in that, The stepping circulating feeding device (400) includes two parallel transfer plates (13), which are located next to two placement seats (7). The eccentric drive unit includes a motor (43) and two sets of sprocket chain transmission structures (45) driven simultaneously by a transmission shaft (44). The output ends of the two sets of sprocket chain transmission structures (45) are connected to the side shafts of the two transfer plates (13) through eccentric plates so that the transfer plates (13) can be driven to rotate eccentrically.

5. The double-head chamfering machine according to claim 1, characterized in that, The fixed base (100) is provided with a linear drive device (14), and the mobile platform (1) is installed on the output end of the linear drive device (14).

6. The double-head chamfering machine according to claim 1, characterized in that, The mobile platform (1) is equipped with a cylinder three (15), and the mobile seat (2) is installed on the output end of the cylinder three (15).

7. The double-head chamfering machine according to claim 1, characterized in that, The adjusting support (3) is a C-shaped structure, and the support sleeve (4) is inserted into the C-shaped structure.

8. The double-head chamfering machine according to claim 7, characterized in that, The output end of motor 1 (5) is inserted into the support sleeve (4).

9. The double-head chamfering machine according to claim 1, characterized in that, An adjustment block (31) is fixedly provided on both the front and rear sides of the movable seat (2) and the adjustment support (3). Several front and rear adjustment nuts (32) with their front ends in contact with the adjustment support (3) are provided on the adjustment block (31). An adjustment hole (33) for passing a locking nut (36) is provided on the surface of the adjustment support (3) in contact with the movable seat (2). The movable seat (2) is also provided with an adjustment hole for passing a locking nut (36) so that the adjustment support (3) can be locked and positioned after the front and rear position of the adjustment support (3) relative to the movable seat (2) is adjusted.

10. The double-head chamfering machine according to claim 1, characterized in that, The adjusting support (3) is provided with upper and lower adjusting nuts (34) on both the upper and lower sides surrounding the support sleeve (4). The side of the adjusting support (3) that contacts the support sleeve (4) is provided with adjusting hole 2 (35) for passing through the locking nut (36) so that the support sleeve (4) can be locked and positioned after the upper and lower position of the support sleeve (4) relative to the adjusting support (3) is adjusted.

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