Barrel end flanging and slotting machine

Abstract

The present invention discloses a barrel end flanging slotting machine, comprising a machine base, a revolving power head and a clamping and positioning mechanism are installed above the machine base, one end of the revolving power head is connected to a main power mechanism, the main power mechanism is connected to the machine base through a longitudinal moving mechanism, and the other end of the revolving power head is installed with a self-rotating flanging mechanism, a transverse moving mechanism and a turning mechanism; the self-rotating flanging mechanism comprises a flanging die base, a vertical shaft is installed at the bottom of the flanging die base, a vertical bearing shell is sleeved on the vertical shaft, an incomplete bevel gear and an L-shaped mounting plate are fixed to the main body side of the vertical bearing shell, a flanging wheel bearing shell is installed inside the L-shaped mounting plate, and a flanging wheel axle with a conical structure is installed inside the flanging wheel bearing shell. The barrel end flanging slotting machine provided by the present invention can realize automatic flanging and automatic waterline processing of the pipe end through a set of equipment, ensure molding accuracy, improve processing efficiency, and reduce processing costs; and ensure the flatness of the flanging sealing surface.

Description

Technical Field

[0001] The invention relates to a barrel end flanging and grooving machine, belonging to the technical field of pipe end processing equipment. Background Art

[0002] After cutting and drilling, stainless steel pipes need to be flanging and waterline processing on one or both ends. Flanging refers to the use of special mechanical equipment to extrude and flanging the pipe ends to shape them. Flanging changes the leakage welding phenomenon that may occur in traditional flange welding or gasket hot melt connection. Waterline processing is a high-speed cutting technology. Its principle is to cut around the circumferential contour on the sealing surface to form a ring groove to improve the sealing of the pipe end.

[0003] At present, the flanging and waterline processing of stainless steel pipes need to be completed by two sets of mechanical equipment. During the processing, the stainless steel pipe workpiece needs to be transferred and clamped twice, which affects the forming accuracy, resulting in low processing efficiency and high cost of flanging and waterline processing.

[0004] The commonly used flanging machines on the market generally use a pressure wheel and a rotating wheel to forcefully press to form a flanging. Although the purpose of flanging is achieved, the flanging may not be in place or over-flanged, and the flatness of the flanging sealing surface cannot be guaranteed. Since the pressure wheel has a certain width, it is easy to leave scratches on the upward part of the pipe flange during flanging, affecting the appearance of the outer surface of the pipe and even causing a decrease in performance.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to propose a barrel end flanging and grooving machine to solve the bottleneck in the prior art. Summary of the invention

[0006] In view of the deficiencies in the background technology, the present invention provides a barrel end flanging and grooving machine, which can realize automatic flanging and automatic waterline processing of the pipe end through a set of equipment, ensure the molding accuracy, improve the processing efficiency, and reduce the processing cost; the flatness of the flanging sealing surface can be guaranteed to avoid the phenomenon of inadequate flanging or over-flanging; and the problem of scratches on the outside of the pipe due to the flanging, which affects the appearance and performance, can be avoided.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The barrel end flanging and grooving machine comprises a machine base, a revolution power head and a clamping and positioning mechanism are installed on the machine base, one end of the revolution power head is connected to the main power mechanism, the main power mechanism is connected to the machine base through a longitudinal moving mechanism, and the other end of the revolution power head is installed with a self-rotation flanging mechanism, a transverse moving mechanism and a turning mechanism;

[0009] The revolution power head comprises a revolution driving disk and a revolution driven disk arranged side by side, the revolution driving disk and the revolution driven disk are connected through a connecting shell in the middle, and a dovetail seat is provided on the side of the revolution driven disk away from the revolution driving disk;

[0010] The lateral movement mechanism comprises a dovetail buckle plate, which is slidably connected to the dovetail seat;

[0011] The self-rotating flanging mechanism comprises a flanging die seat of a C-shaped structure, the flanging die seat is fixedly connected to a dovetail buckle plate, a vertical shaft is installed at the bottom of the flanging die seat, a vertical bearing shell is sleeved on the vertical shaft, an incomplete bevel gear and an L-shaped mounting plate are fixedly connected to the side of the main body of the vertical bearing shell, the L-shaped mounting plate is located above the incomplete bevel gear, a flanging wheel bearing shell is installed inside the L-shaped mounting plate, a flanging wheel axle of a conical structure is installed inside the flanging wheel bearing shell, and the axis of the flanging wheel axle is arranged to intersect perpendicularly with the axis of the vertical shaft;

[0012] The turning mechanism includes a tool holder and a turning tool, both of which are L-shaped structures. The turning tool is embedded and fixed in the middle of the tool holder, and the tool holder is fixed to the side of the flanging wheel bearing shell; the turning tool is provided with two groups of cutting teeth, and the two groups of cutting teeth cooperate to flanging the pipe end and then perform waterline processing.

[0013] Furthermore, the clamping and positioning mechanism includes a fixed upper pressure bracket, which adopts a cantilever structure, and an upper holding mold and a lower holding mold that are arranged opposite to each other are installed inside the upper pressure bracket. The lower holding mold is fixed and the upper holding mold is movable. The upper holding mold is connected to the upper pressure servo motor on the top of the upper pressure bracket through a trapezoidal screw mechanism; the side of the lower holding mold is provided with an arc-shaped support.

[0014] Furthermore, a positioning guide fixing plate is fixedly connected to the side above the upper pressure bracket body, and a liftable positioning plate is provided on the side of the positioning guide fixing plate away from the upper pressure bracket. The positioning plate and the positioning guide fixing plate are connected by a slide rail slider mechanism, and the positioning plate is connected to a positioning cylinder arranged along the vertical direction, and the positioning cylinder drives the positioning plate to slide precisely along the vertical direction.

[0015] Furthermore, the main power mechanism includes a power bearing seat, a hollow main shaft arranged laterally is installed inside the power bearing seat, the driving end of the hollow main shaft is connected to the output shaft of the reducer through a belt, and the reducer is connected to the main motor; the driven end of the hollow main shaft is connected to the revolving power head, and the hollow main shaft drives the revolving power head to rotate; an electrical rotary joint is provided on the end of the hollow main shaft close to the revolving power head, and the electrical rotary joint is connected to a power supply.

[0016] Furthermore, the longitudinal movement mechanism includes a moving base plate, a power bearing seat is fixedly connected to the moving base plate, the bottom of the moving base plate is connected to the longitudinal guide rail on the upper surface of the base through a slider; the bottom of the moving base plate is connected to the longitudinal movement drive screw through a connecting rod, the longitudinal movement drive screw is rotatably mounted on the drive mounting seat, and one end of the longitudinal movement drive screw is connected to the longitudinal movement servo motor;

[0017] The driving mounting seat, the longitudinal driving screw rod and the longitudinal servo motor are installed in the cavity of the machine base. The machine base is formed by welding steel plates and has a cavity inside.

[0018] Furthermore, a first avoidance hole is provided inside the dovetail seat, and a second avoidance hole is provided on the side of the dovetail seat. Both the first avoidance hole and the second avoidance hole are arranged through the revolving driven disk.

[0019] Furthermore, a sliding seat is fixed inside the dovetail plate, the sliding seat is inserted into the first avoidance hole, and a transverse driving screw is threadedly connected to the inside of the sliding seat. One end of the transverse driving screw is transmitted to the transverse servo motor through a spur gear, and the transverse driving screw and the transverse servo motor are both installed on the end face of the revolving driven disk close to the revolving active disk.

[0020] Furthermore, the incomplete bevel gear is sequentially connected to the servo passive shaft, the servo active shaft and the flanging servo motor in terms of transmission; the servo passive shaft and the servo active shaft are vertically arranged.

[0021] Furthermore, the servo passive shaft is arranged to penetrate the flanging die base and the revolving driven disk in the transverse direction, and bevel gears are provided at both ends of the servo passive shaft; a bevel gear is provided at one end of the servo active shaft, and the other end of the servo active shaft is connected to the flanging servo motor through a spur gear, and the servo active shaft and the flanging servo motor are both installed on the end face of the revolving driven disk close to the revolving active disk.

[0022] Furthermore, an electrical control cabinet is installed on the machine base, and the electrical control cabinet is located on the side of the clamping and positioning mechanism.

[0023] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0024] The revolving power head in the present invention can drive the self-rotating flanging mechanism and the turning mechanism to rotate, and can realize flanging and waterline processing of the pipe end through a set of equipment. The flanging station and the waterline station can be automatically switched, which is convenient to use. During the processing, the tubular workpiece does not need to be transported, and can be clamped and positioned once by the clamping and positioning mechanism, thereby ensuring the molding accuracy, improving the processing efficiency, and reducing the cost of flanging and waterline processing.

[0025] During the flanging process, the flanging servo motor transmits power to the servo active shaft, servo passive shaft and incomplete bevel gear in sequence, thereby causing the vertical bearing shell, L-shaped mounting plate, flanging wheel bearing shell and flanging wheel shaft to rotate at a certain angle. The flanging wheel shaft achieves accurate flanging of the pipe end through the combined effect of revolution and rotation, ensuring that the flanging end faces are in the same plane, avoiding the phenomenon of inadequate flanging or over-flanging.

[0026] In the present invention, the upper and lower clamping dies are used to clamp the tubular workpiece, and the flanged wheel shaft that can rotate and revolve is used to accurately flange the pipe end. After the flanged pipe is completed, the exterior of the pipe is beautiful and has no scratches.

[0027] The invention has a wide application range and can perform automatic flanging and automatic waterline processing on stainless steel tubular workpieces with a nominal size of 40-200 mm and a thickness of 2-4 mm.

[0028] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the present invention along another direction;

[0031] Figure 3 It is a structural schematic diagram of the clamping and positioning mechanism;

[0032] Figure 4 is a schematic diagram of the structure of the clamping and positioning mechanism along another direction;

[0033] Figure 5 It is a structural diagram of the main power mechanism and the longitudinal movement mechanism;

[0034] Figure 6 It is a structural schematic diagram of the revolution power head;

[0035] Figure 7 It is a structural schematic diagram of the self-rotating flanging mechanism and the lateral moving mechanism;

[0036] Figure 8 It is a schematic diagram of the structure of the self-rotating flanging mechanism and the lateral moving mechanism along another direction;

[0037] Fig. 9 It is the installation diagram of the turning mechanism;

[0038] Fig.10 It is a structural schematic diagram of the flanging die base;

[0039] Fig.11 It is a structural diagram of the dovetail gusset plate.

[0040] In the figure, 1-machine base, 11-cavity; 2-clamping and positioning mechanism, 21-upper pressure bracket, 22-upper mold, 23-lower mold, 24-arc support, 25-upper pressure servo motor, 26-positioning guide fixing plate, 27-positioning plate, 28-positioning cylinder; 3-main power mechanism, 31-power bearing seat, 32-hollow main shaft, 33-electrical rotary joint, 34-reducer, 35-main motor; 4-longitudinal moving mechanism, 41-moving bottom plate, 42-longitudinal guide rail, 43-connecting rod, 44-longitudinal driving screw, 45-longitudinal servo motor, 46-driving mounting seat; 5-revolution power head, 51-revolution active disk, 5 2-revolving driven disk, 53-connecting shell, 54-dovetail seat, 55-first avoidance hole, 56-second avoidance hole, 57-cover shell; 6-rotation flanging mechanism, 61-flanging die seat, 62-vertical shaft, 63-vertical bearing shell, 64-incomplete bevel gear, 65-servo passive shaft, 66-servo active shaft, 67-flanging servo motor, 68-L-shaped mounting plate, 69-flanging wheel shaft, 610-flanging wheel bearing shell; 7-lateral moving mechanism, 71-dovetail buckle plate, 72-slide seat, 73-lateral driving screw, 74-lateral servo motor; 8-turning mechanism, 81-tool holder, 82-tool; 9-electrical control cabinet. DETAILED DESCRIPTION

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0042] like Figure 1-11 As shown together, the present invention provides a barrel end flanging and grooving machine, including a machine base 1, on which a revolving power head 5 and a clamping and positioning mechanism 2 are installed, one end of the revolving power head 5 is connected to a main power mechanism 3, and the main power mechanism 3 is connected to the machine base 1 through a longitudinal moving mechanism 4, and the other end of the revolving power head 5 is installed with a self-rotating flanging mechanism 6, a transverse moving mechanism 7 and a turning mechanism 8.

[0043] The clamping and positioning mechanism 2 includes a fixed upper pressure bracket 21, which adopts a cantilever structure. An upper holding die 22 and a lower holding die 23 that are arranged opposite to each other are installed inside the upper pressure bracket 21. The lower holding die 23 is fixed, and the upper holding die 22 is movable. The upper holding die 22 is connected to the upper pressure servo motor 25 on the top of the upper pressure bracket 21 through a trapezoidal screw mechanism. The upper holding die 22 and the lower holding die 23 realize the clamping and fixation of the tubular workpiece.

[0044] An arc-shaped supporting member 24 is provided on the side of the lower holding mold 23, and the arc-shaped supporting member 24 is used to support the tubular workpiece.

[0045] The side above the main body of the upper pressure bracket 21 is provided with a positioning guide fixing plate 26 fixedly connected thereto, and a liftable positioning plate 27 is provided on the side of the positioning guide fixing plate 26 away from the upper pressure bracket 21. The positioning plate 27 is connected to the positioning guide fixing plate 26 via a slide rail and slider mechanism, and the positioning plate 27 is connected to a positioning cylinder 28 arranged along the vertical direction. The positioning cylinder 28 drives the positioning plate 27 to slide precisely in the vertical direction, and the tubular workpiece can abut against the side of the positioning plate 27 to position the pipe end.

[0046] The main power mechanism 3 includes a power bearing seat 31, and a hollow main shaft 32 arranged in the transverse direction is installed inside the power bearing seat 31. The driving end of the hollow main shaft 32 is connected to the output shaft of the reducer 34 through a belt, and the reducer 34 is connected to the main motor 35; the driven end of the hollow main shaft 32 is connected to the revolving power head 5, and the hollow main shaft 32 drives the revolving power head 5 to rotate; an electrical rotary joint 33 is provided on the end of the hollow main shaft 32 close to the revolving power head 5, and the electrical rotary joint 33 is connected to the power supply.

[0047] The longitudinal moving mechanism 4 includes a moving base plate 41, the power bearing seat 31 is fixedly connected to the moving base plate 41, and the bottom of the moving base plate 41 is connected to the longitudinal guide rail 42 on the upper surface of the machine base 1 through a slider; the bottom of the moving base plate 41 is connected to the longitudinal moving drive screw 44 through a connecting rod 43, and the longitudinal moving drive screw 44 is rotatably mounted on the drive mounting seat 46, and one end of the longitudinal moving drive screw 44 is connected to the longitudinal moving servo motor 45.

[0048] The driving mounting seat 46 , the longitudinal driving screw rod 44 and the longitudinal servo motor 45 are installed in the cavity 11 of the machine base 1 . The machine base 1 is formed by welding steel plates and has a cavity 11 inside.

[0049] The revolving power head 5 includes a revolving active disk 51 and a revolving driven disk 52 arranged side by side. The revolving active disk 51 is fixedly connected to the hollow main shaft 32. The revolving active disk 51 and the revolving driven disk 52 are connected through a middle connecting shell 53. An installation chamber is provided inside the connecting shell 53. A cover shell 57 is provided outside the connecting shell 53 and the revolving driven disk 52.

[0050] A dovetail seat 54 is provided on the side of the revolving driven disk 52 away from the revolving active disk 51 , a first avoidance hole 55 is provided inside the dovetail seat 54 , a second avoidance hole 56 is provided on the side of the dovetail seat 54 , and both the first avoidance hole 55 and the second avoidance hole 56 are provided through the revolving driven disk 52 .

[0051] The lateral movement mechanism 7 includes a dovetail clasp 71, which is slidably connected to the dovetail seat 54, a slide 72 is fixedly connected inside the dovetail clasp 71, the slide 72 is inserted into the first avoidance hole 55, a lateral movement driving screw 73 is threadedly connected inside the slide 72, one end of the lateral movement driving screw 73 is driven by a lateral movement servo motor 74 through a spur gear, and the lateral movement driving screw 73 and the lateral movement servo motor 74 are both installed on the end surface of the revolving driven disk 52 close to the revolving active disk 51. The lateral movement servo motor 74 drives the slide 72 and the dovetail clasp 71 to slide along the dovetail seat 54 through the lateral movement driving screw 73.

[0052] The self-rotating flanging mechanism 6 includes a flanging die base 61 of a C-shaped structure, which is fixedly connected to a dovetail buckle plate 71. A vertical shaft 62 is installed at the bottom of the flanging die base 61, and a vertical bearing shell 63 is sleeved on the vertical shaft 62. An incomplete bevel gear 64 and an L-shaped mounting plate 68 are fixedly connected to the side of the main body of the vertical bearing shell 63. The incomplete bevel gear 64 is sequentially connected to the servo passive shaft 65, the servo active shaft 66 and the flanging servo motor 67. The servo passive shaft 65 is vertically arranged to the servo active shaft 66.

[0053] The servo driven shaft 65 is arranged to penetrate the flanging die base 61 and the revolving driven disk 52 in the transverse direction. The servo driven shaft 65 is inserted into the second avoidance hole 56 of the revolving driven disk 52. Both ends of the servo driven shaft 65 are provided with bevel gears; one end of the servo driving shaft 66 is provided with a bevel gear, and the other end of the servo driving shaft 66 is transmission-connected to the flanging servo motor 67 through a spur gear. The servo driving shaft 66 and the flanging servo motor 67 are both installed on the end face of the revolving driven disk 52 close to the revolving driving disk 51.

[0054] The L-shaped mounting plate 68 is located above the incomplete bevel gear 64, and a flanged wheel bearing shell 610 is installed inside the L-shaped mounting plate 68. A flanged wheel axle 69 is installed inside the flanged wheel bearing shell 610. The axis of the flanged wheel axle 69 is arranged to intersect perpendicularly with the axis of the vertical axis 62, and the flanged wheel axle 69 is a conical structure.

[0055] The flanging servo motor 67 transmits power to the servo active shaft 66, the servo passive shaft 65 and the incomplete bevel gear 64 in sequence, causing the vertical bearing shell 63 to rotate a certain angle along the vertical axis 62, thereby driving the L-shaped mounting plate 68, the flanging wheel bearing shell 610 and the flanging wheel shaft 69 to rotate a certain angle.

[0056] The turning mechanism 8 includes a turning tool holder 81 and a turning tool 82. Both the turning tool holder 81 and the turning tool 82 are L-shaped structures. The turning tool 82 is embedded and fixed in the middle of the turning tool holder 81, and the turning tool holder 81 is fixed to the side of the flanging wheel bearing shell 610; the turning tool 82 is provided with two sets of cutting teeth, and the two sets of cutting teeth cooperate to flanging the pipe end and then perform waterline processing.

[0057] An electrical control cabinet 9 is also installed on the machine base 1 , and the electrical control cabinet 9 is located on the side of the clamping and positioning mechanism 2 .

[0058] The technical parameters of each power device in the present invention are as follows: the rated power of the main motor is 7.5KW; the speed ratio of the reducer is 1:17; the rated power of the flanging servo motor is 3KW, and the speed ratio is 100; the rated power of the longitudinal servo motor is 1KW; the rated power of the transverse servo motor is 1KW; and the rated power of the upper pressure servo motor is 1KW.

[0059] The parameters of the tubular workpiece in the present invention are as follows: nominal size 40-200 mm; length 100-2500 mm; thickness 2-4 mm; material 304 or 316 stainless steel.

[0060] The specific working principle of the present invention is:

[0061] The tubular workpiece is manually placed on the lower holding die 23 and the arc-shaped support 24, and the end of the tubular workpiece is positioned by the positioning plate 27. The upper holding die 22 is driven by the upper pressure servo motor 25 to descend, so as to clamp the workpiece tightly.

[0062] The revolution power head 5 is longitudinally positioned under the action of the longitudinal moving mechanism 4, and the main motor 35 drives the revolution power head 5 and the self-rotation flanging mechanism 6 to rotate. During the rotation process, the self-rotation flanging mechanism 6 is transversely positioned under the action of the transverse moving mechanism 7. After being transversely positioned, the self-rotation flanging mechanism 6 continues to revolve;

[0063] The flanging servo motor 67 rotates, and transmits power to the servo active shaft 66, the servo passive shaft 65 and the incomplete bevel gear 64 in sequence, so that the vertical bearing shell 63 rotates a certain angle along the vertical axis 62, and then drives the L-shaped mounting plate 68, the flanging wheel bearing shell 610 and the flanging wheel shaft 69 to rotate a certain angle. The flanging wheel shaft 69 flanging the end of the tubular workpiece, considering the elasticity of the workpiece material, the flanging wheel shaft 69 stops rotating after flanging, and the flanging wheel shaft 69 continues to orbit for several circles to ensure that the flanging end faces are in the same plane;

[0064] The flanging servo motor 67 rotates in the reverse direction, so that the flanging wheel shaft 69 quickly rotates back to the initial position, the self-rotating flanging mechanism 6 retreats longitudinally for a distance under the action of the longitudinal moving mechanism 4, and the self-rotating flanging mechanism 6 moves in the reverse transverse direction under the action of the transverse moving mechanism 7, so that the turning tool 82 is in place to prepare for turning the waterline;

[0065] The longitudinal moving mechanism 4 drives the turning tool 82 forward, and at the same time, the revolving power head 5 drives the turning tool 82 to rotate, turning the waterline of the flanged end surface of the workpiece;

[0066] The main motor 35 stops, all workstations return to their positions, and the parts are picked up manually.

[0067] The above is an example of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. Barrel end flanging and slotting machine, characterized by: The machine comprises a machine base (1), a revolving power head (5) and a clamping and positioning mechanism (2) are mounted above the machine base (1), one end of the revolving power head (5) is connected to a main power mechanism (3), the main power mechanism (3) is connected to the machine base (1) via a longitudinal moving mechanism (4), and the other end of the revolving power head (5) is mounted with a self-rotating flanging mechanism (6), a transverse moving mechanism (7) and a turning mechanism (8); The revolving power head (5) comprises a revolving driving disk (51) and a revolving driven disk (52) arranged side by side, the revolving driving disk (51) and the revolving driven disk (52) being connected via a connecting shell (53) in the middle, and a dovetail seat (54) is provided on a side of the revolving driven disk (52) away from the revolving driving disk (51); The transverse movement mechanism (7) comprises a dovetail buckle plate (71), and the dovetail buckle plate (71) is slidably connected to the dovetail seat (54); The self-rotating flanging mechanism (6) comprises a flanging die base (61) of a C-shaped structure, the flanging die base (61) is fixedly connected to a dovetail buckle plate (71), a vertical shaft (62) is installed at the bottom of the flanging die base (61), a vertical bearing shell (63) is sleeved on the vertical shaft (62), an incomplete bevel gear (64) and an L-shaped mounting plate (68) are fixedly connected to the main body side of the vertical bearing shell (63), the L-shaped mounting plate (68) is located above the incomplete bevel gear (64), a flanging wheel bearing shell (610) is installed inside the L-shaped mounting plate (68), a flanging wheel shaft (69) of a conical structure is installed inside the flanging wheel bearing shell (610), and the axis of the flanging wheel shaft (69) is arranged to intersect perpendicularly with the axis of the vertical shaft (62); The turning mechanism (8) comprises a turning tool holder (81) and a turning tool (82); the turning tool holder (81) and the turning tool (82) are both L-shaped structures; the turning tool (82) is embedded and fixed in the middle of the turning tool holder (81); the turning tool holder (81) is fixed to the side of the flanging wheel bearing shell (610); the turning tool (82) is provided with two groups of cutting teeth, and the two groups of cutting teeth cooperate to perform waterline processing after flanging the pipe end.

2. The barrel end flanging and groove making machine according to claim 1, characterized in that: The clamping and positioning mechanism (2) comprises a fixed upper pressure bracket (21), the upper pressure bracket (21) adopts a cantilever structure, an upper holding die (22) and a lower holding die (23) arranged opposite to each other are installed inside the upper pressure bracket (21), the lower holding die (23) is fixed, and the upper holding die (22) is movable, and the upper holding die (22) is connected to the upper pressure servo motor (25) at the top of the upper pressure bracket (21) through a trapezoidal screw mechanism; and an arc-shaped support (24) is provided on the side of the lower holding die (23).

3. The barrel end flanging and groove making machine according to claim 2, characterized in that: A positioning guide fixing plate (26) is fixedly connected to the upper pressure bracket (21) on the side above the main body thereof, and a liftable positioning plate (27) is provided on the side of the positioning guide fixing plate (26) away from the upper pressure bracket (21). The positioning plate (27) is connected to the positioning guide fixing plate (26) via a slide rail and slider mechanism, and the positioning plate (27) is connected to a positioning cylinder (28) arranged in a vertical direction, and the positioning cylinder (28) drives the positioning plate (27) to slide precisely in the vertical direction.

4. The barrel end flanging and groove making machine according to claim 1, characterized in that: The main power mechanism (3) comprises a power bearing seat (31), a hollow main shaft (32) arranged in a transverse direction is installed inside the power bearing seat (31), a driving end of the hollow main shaft (32) is connected to the output shaft of a reducer (34) through a belt, and the reducer (34) is connected to a main motor (35); a driven end of the hollow main shaft (32) is connected to a revolving power head (5), and the hollow main shaft (32) drives the revolving power head (5) to rotate; an electrical rotary joint (33) is sleeved on one end of the hollow main shaft (32) close to the revolving power head (5), and the electrical rotary joint (33) is connected to a power source.

5. The barrel end flanging and groove making machine according to claim 1, characterized in that: The longitudinal movement mechanism (4) comprises a moving base plate (41), a power bearing seat (31) is fixedly connected to the moving base plate (41), and the bottom of the moving base plate (41) is connected to a longitudinal guide rail (42) on the upper surface of the machine base (1) via a slider; the bottom of the moving base plate (41) is connected to a longitudinal movement drive screw rod (44) via a connecting rod (43), the longitudinal movement drive screw rod (44) is rotatably mounted on a drive mounting seat (46), and one end of the longitudinal movement drive screw rod (44) is connected to a longitudinal movement servo motor (45); The driving mounting seat (46), the longitudinal driving screw rod (44) and the longitudinal servo motor (45) are installed in the cavity (11) of the machine base (1). The machine base (1) is formed by welding steel plates and has a cavity (11) inside.

6. The barrel end flanging and groove making machine according to claim 1, characterized in that: A first avoidance hole (55) is provided inside the dovetail seat (54), and a second avoidance hole (56) is provided on the side of the dovetail seat (54). Both the first avoidance hole (55) and the second avoidance hole (56) are provided through the revolving driven disk (52).

7. The barrel end flanging and groove making machine according to claim 6, characterized in that: The dovetail buckle plate (71) is fixedly connected with a slide seat (72) inside. The slide seat (72) is inserted into the first avoidance hole (55). The slide seat (72) is internally threadedly connected with a transverse driving screw rod (73). One end of the transverse driving screw rod (73) is driven by a transverse servo motor (74) through a spur gear. The transverse driving screw rod (73) and the transverse servo motor (74) are both installed on the end surface of the revolving driven disk (52) close to the revolving active disk (51).

8. The barrel end flanging and groove making machine according to claim 1, characterized in that: The incomplete bevel gear (64) is sequentially connected in transmission with the servo passive shaft (65), the servo active shaft (66) and the flanged servo motor (67); the servo passive shaft (65) and the servo active shaft (66) are arranged vertically.

9. The barrel end flanging and groove making machine according to claim 8, characterized in that: The servo driven shaft (65) is arranged to penetrate the flanging die base (61) and the revolving driven disk (52) in the transverse direction, and bevel gears are provided at both ends of the servo driven shaft (65); one end of the servo driving shaft (66) is provided with a bevel gear, and the other end of the servo driving shaft (66) is transmission-connected to the flanging servo motor (67) via a spur gear, and the servo driving shaft (66) and the flanging servo motor (67) are both mounted on the end surface of the revolving driven disk (52) close to the revolving driving disk (51).

10. The barrel end flanging and groove making machine according to claim 1, characterized in that: An electrical control cabinet (9) is also installed on the machine base (1), and the electrical control cabinet (9) is located on the side of the clamping and positioning mechanism (2).

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