Flange plate turning device and turning process

Abstract

The invention relates to the technical field of flange plate machining, in particular to a flange plate turning device and a turning technology.The device comprises a machine frame of a lathe, a supporting assembly and mounting rods symmetrically distributed on the two sides of the supporting assembly are movably arranged on the machine frame, and the supporting assembly is composed of a plurality of supporting blocks connected in sequence; mortises communicated with each other are formed in the bottoms of the supporting blocks, tenon blocks corresponding to the mounting rods are arranged in the mortises in a sliding mode, and traction rods are movably arranged between the mounting rods and the corresponding tenon blocks. When the surface of the flange plate is turned, the flange plate flange is outwards fixed to a lathe rotary table, the clamping rods are clamped to the outer edge of the flange plate, then the supporting blocks are manually pushed to be close to form the supporting rods, the supporting rods support the flange plate flange, and the flange plate can stably rotate along with the rotary table.

Description

Technical Field

[0001] The invention relates to the technical field of flange processing, and in particular to a flange turning device and a turning process. Background Art

[0002] A flange is a detachable connection component that connects two pipes or a pipe and equipment. It is usually used to connect two steel pipes or pipelines.

[0003] China's public patent, publication number CN118237617A, discloses a wind turbine flange turning device.

[0004] In the prior art including the above patents, large flanges, especially integral forged flanges, need to be repeatedly heat treated and forged during production, and then the blanks are shaped by a ring rolling machine to become flanges, and then the surface of the flanges is turned by a lathe. Most of the existing lathe fixtures are three-jaw chucks or five-jaw chucks. The jaws of the chuck clamp the flange and are rotated by the spindle to facilitate the tool to turn. In addition, in order to facilitate the tool to process the edges and corners of the flange, the jaws are generally not too long. However, large flanges have a large deadweight, especially large flanges with flanges. The center of gravity of such flanges is not in the center. The short jaws alone cannot provide a stable clamping force for the flanges. The flanges are prone to shaking during rotation, affecting the turning of the flange surface. Summary of the invention

[0005] The purpose of the present invention is to provide a flange turning device and a turning process, aiming to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides a flange turning device, comprising a frame of a lathe, a support assembly and mounting rods symmetrically distributed on both sides of the support assembly are movably arranged on the frame, the support assembly is composed of a plurality of support blocks connected in sequence, a plurality of support blocks are provided with interconnected mortises at the bottom, a mortise block corresponding to the mounting rod is slidably arranged in the mortise block, a traction rod is movably arranged between the mounting rod and the corresponding mortise block, wherein the support assembly is assembled for the following two states: In the first state, the top ends of the two traction rods are raised to push the two tenons together, and the plurality of support blocks are inserted to form a support rod against the bottom of the flange; In the second state, the two traction rods pull the two tenons apart, so that the plurality of support blocks are separated and form a traction chain that lifts the bottom of the outer edge of the flange.

[0007] Preferably, it further comprises a driving rod for driving the two tenons to move synchronously in opposite directions, wherein the driving rod is separated from the tenons to switch the supporting assembly from the first state to the second state.

[0008] Preferably, a movable block is hinged on the tenon block for clamping the hoop to form an adapting channel with the driving rod.

[0009] Preferably, a right-angled triangle support frame for supporting the traction rod is provided on the mounting rod, and the end of the support frame supports the bottom end of the traction rod close to the middle of the frame.

[0010] Preferably, the bottom end of the support frame is hinged to the mounting rod and the top cross bar is locked to the mounting rod, and the support frame is unlocked to allow the movable block to rotate relative to the tenon block.

[0011] Preferably, the mounting rod is moved upward to unlock the support frame and allow the traction chain to fit against the bottom of the outer edge of the flange.

[0012] Preferably, a slide plate is slidably provided on the frame, and the clamping claw on the frame rotates to record the outer diameter of the flange and drives the mounting rod to move upward when the flange is separated from the supporting assembly.

[0013] Preferably, an insertion rod is slidably provided on the support block, and the driving rod drives the two tenon blocks to move closer so that the insertion rod crosses two adjacent support blocks.

[0014] Preferably, a friction block for driving the insertion rod to move is movably provided on the tenon block, and the movable block and the tenon block are brought close to each other so that the friction block abuts against the side wall of the insertion rod.

[0015] A flange turning process, based on the flange turning device in the above scheme, further includes the following steps: S1. Fix the flange with the flange facing outward on the lathe turntable, push multiple support blocks together to form a support rod and install the drive rod between the two tenon blocks; S2. Rotate the driving rod to stabilize the support rod and make the support rod rest against the bottom of the flange; S3, lathe turns the side wall of the flange with the flange, and removes the flange after turning; S4. The driving rod is separated, and the supporting blocks are dispersed to form a traction chain. Then the flange is fixed on the lathe turntable with the flange facing inward, and the lathe turns the other side wall of the flange.

[0016] In the above technical scheme, a flange turning device and turning process provided by the present invention have the following beneficial effects: when turning the surface of the flange, the flange is first fixed on the lathe turntable outward, and the clamping rod is clamped on the outer edge of the flange, and then the multiple support blocks are manually pushed together to form a support rod, the top ends of the two traction rods are raised and push the two tenons together, the tenons move along the internal tenons of the support blocks and further push the multiple support blocks to be tightly connected, and the plane of the convex part of the support block abuts against the adjacent support blocks, and the rotation of the two adjacent support blocks is limited by the abutment of the planes, thereby ensuring the compressive strength of the support rod composed of the multiple support blocks, and the top end of the traction rod pushes the support rod to move upward as a whole, and the support rod gradually contacts the flange of the flange to provide supporting force for the flange, and the flange contacts a pair of balls on the central support block, which can facilitate the flange to rotate with the turntable. At this time, the tool direction, the position of the slide bar and the position of the movable seat are manually adjusted. The inner wall of the flange, the outer wall of the flange, the side wall of the flange and the side wall of the flange are turned in turn. The shorter clamping rod will not hinder the tool from turning the side of the flange. After the above turning work is completed, the flange is lifted and turned over by the crane. At this time, the two traction rods pull the two tenons away, and the multiple support blocks move away from each other. The tenon rod moves along the waist groove, and the support blocks rotate with each other. Under the action of gravity, the multiple support blocks naturally droop and become traction chains. The support assembly switches from the first state to the second state, and then the flange is fixed on the turntable in the way that the flange fits the turntable. The clamping rod rests on the inner edge of the flange, and the mounting rod moves with the traction rod and the traction chain. The traction chain fits the outer edge of the flange. The ball bearings on the multiple support blocks facilitate the rotation of the flange relative to the traction chain, and the flange rotates with the turntable. At this time, the tool direction, the position of the slide rod and the position of the movable seat are manually adjusted, and the outer wall of the flange and the other side wall are turned in turn. At this point, the turning process of the outer wall of the flange is completed, and the flange can be removed from the lathe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a slide bar provided by an embodiment of the present invention; Figure 3 A schematic diagram of the internal structure of a rack provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a rack provided by an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 A schematic diagram of the internal structure of a support frame provided by an embodiment of the present invention; Figure 7 for Figure 6 Enlarged view of point B in the middle; Figure 8 for Figure 6 Enlarged view of point C in the middle; Fig. 9 for Figure 6 Enlarged view of point D in the middle; Fig.10 for Fig. 9 Enlarged view of point E in the middle; Fig.11 A schematic diagram of the internal structure of a connection block provided in an embodiment of the present invention; Fig.12 A schematic diagram of the structure of a traction chain provided by an embodiment of the present invention; Fig.13 A schematic structural diagram of a support block provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Frame; 11. Support assembly; 111. Support block; 112. End block; 113. Protrusion; 114. Concave; 115. Tenon rod; 116. Waist groove; 117. Insertion rod; 118. Support rod; 119. Drag chain; 12. Mounting rod; 121. Support frame; 122. Drag rod; 123. Lock rod; 124. Slider; 125. Tenon block; 126. Connecting block; 127. Movable block; 128. Lock block; 129. Friction block; 1 31. First magnetic ring; 132. Second magnetic ring; 133. Third magnetic ring; 134. Fourth magnetic ring; 135. First cable; 136. Second cable; 137. Third cable; 138. Fourth cable; 14. Slide plate; 141. Liquid storage chamber; 142. Rack; 143. First gear; 144. Second gear; 145. Stop block; 146. Drive rod; 147. Ball; 2. Movable seat; 21. Slide rod; 22. Turntable; 23. Clamp rod. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. Embodiment 1

[0021] like Figure 1-13As shown, a flange turning device includes a frame 1 of a lathe, a support assembly 11 and mounting rods 12 symmetrically distributed on both sides of the support assembly 11 are movably arranged on the frame 1, the support assembly 11 is composed of a plurality of support blocks 111 connected in sequence, a plurality of support blocks 111 are provided with interconnected tenons at the bottom, tenons 125 corresponding to the mounting rods 12 are slidably arranged in the tenons, a traction rod 122 is movably arranged between the mounting rod 12 and the corresponding tenon block 125, wherein the support assembly 11 is assembled for the following two states: In the first state, the top ends of the two traction rods 122 are raised to push the two tenons 125 closer together, and the plurality of support blocks 111 are inserted to form a support rod 118 against the bottom of the flange. In the second state, the two traction rods 122 pull the two tenons 125 apart, so that the multiple support blocks 111 are separated and form a traction chain 119 that lifts the bottom of the outer edge of the flange.

[0022] Specifically, the two ends of the support block 111 are respectively provided with matching convex parts 113 and concave parts 114, a cylindrical tenon rod 115 is provided in the concave part 114, and a waist-shaped groove 116 matching the tenon rod 115 is opened on the convex part 113. Ball bearings 147 are movably provided on the support blocks 111, and a pair of ball bearings 147 is provided on the central support block 111. The support assembly 11 also includes an end block 112 connected to the two outermost support blocks 111 and used to prevent the tenon block 125 from separating from the support assembly 11.

[0023] Furthermore, a movable seat 2 is slidably provided on the frame 1 , a slide bar 21 for installing a tool is slidably provided on the movable seat 2 , a turntable 22 is provided on the main shaft of the lathe, and a plurality of clamping rods 23 are provided on the turntable 22 .

[0024] In the above technical solution, when turning the surface of the flange, the flange is first fixed on the lathe turntable 22 with the flange facing outward, and the clamping rod 23 is clamped on the outer edge of the flange, and then the multiple support blocks 111 are manually pushed together to form a support rod 118, and the middle of the support rod 118 is located on the central axis of the frame 1, the top ends of the two traction rods 122 are raised and push the two tenons 125 together, the tenons 125 move along the internal tenons of the support blocks 111 and further push the multiple support blocks 111 to be closely connected, and the plane of the convex portion 113 of the support block 111 abuts against On the adjacent support blocks 111, the rotation of the two adjacent support blocks 111 is limited by the abutment of the plane, thereby ensuring the compressive strength of the support rod 118 composed of the multiple support blocks 111, and the top end of the traction rod 122 pushes the support rod 118 to move upward as a whole, and the support rod 118 gradually contacts the flange of the flange to provide support force for the flange, and the flange contacts a pair of balls 147 on the central support block 111, which can facilitate the flange to rotate with the turntable 22. At this time, the tool direction, the position of the slide bar 21 and the position of the movable seat 2 are manually adjusted, and the turning is sequentially performed. The inner wall of the flange, the outer wall of the flange, the side wall of the flange and the side wall of the flange are cut, and the shorter clamping rod 23 will not hinder the tool from turning the side of the flange; after the above turning work is completed, the flange is lifted and turned over by the crane, at this time, the two traction rods 122 pull the two tenons 125 away, and the multiple support blocks 111 are away from each other, the tenon rods 115 move along the waist groove 116, and the support blocks 111 rotate with each other. Under the action of gravity, the multiple support blocks 111 naturally droop and become the traction chain 119, and the support assembly 11 is switched from the first state to the second state, and then the flange is turned. The flange is fixed to the turntable 22 in such a way that it fits the turntable 22, the clamping rod 23 rests on the inner edge of the flange, the mounting rod 12 moves with the traction rod 122 and the traction chain 119, the traction chain 119 fits on the outer edge of the flange, and the ball bearings 147 on the multiple support blocks 111 facilitate the rotation of the flange relative to the traction chain 119. The flange rotates with the turntable 22. At this time, the tool direction, the position of the slide rod 21 and the position of the movable seat 2 are manually adjusted, and the outer wall of the flange and the other side wall are turned in turn. At this point, the turning of the outer wall of the flange is completed, and the flange can be removed from the lathe.

[0025] As a further embodiment provided by the present invention, it also includes a driving rod 146 for driving the two tenons 125 to move synchronously in opposite directions. The driving rod 146 is separated from the tenons 125 to switch the support assembly 11 from the first state to the second state.

[0026] Specifically, when the support assembly 11 is in the first state, the driving rod 146 is coupled with the two tenons 125, and the driving rod 146 rotates to drive the two tenons 125 to move closer, and the tenons 125 push the multiple support blocks 111 to fit more closely, and the tenons 125 pull the top of the traction rod 122, and the traction rod 122 pushes the support rod 118 composed of the multiple support blocks 111 to move upward until the support rod 118 contacts the flange flange and provides supporting force to the flange flange, so that the flange can rotate stably with the turntable 22; when the driving rod 146 is separated from the tenons 125, the two tenons 125 can move along the tenons on the support blocks 111, gradually move toward the two ends of the support assembly 11, and the multiple support blocks 111 are separated, the support blocks 111 can rotate, and the support blocks 111 fall under the action of gravity, and the support assembly 11 switches from the first state to the second state.

[0027] As another embodiment further provided by the present invention, a movable block 127 is hinged on the tenon block 125 for clamping a hoop to form an adapting channel with the driving rod 146 .

[0028] Specifically, both ends of the driving rod 146 are provided with threads, and the spiral directions of the two sections of the screw are opposite. A connecting block 126 is provided at the bottom of the tenon block 125, and the movable block 127 is hinged to the connecting block 126. The movable block 127 and the connecting block 126 are both provided with semicircular grooves with cross sections. The two semicircular grooves with cross sections are combined to form a channel adapted to the driving rod 146. The channels on the two tenons 125 are respectively adapted to the two end threads on the two ends of the driving rod 146, and the movable block 127 is provided with a slope for guiding the movement of the driving rod 146.

[0029] Furthermore, when the support assembly 11 is in the first state, the movable block 127 is tightly connected to the connecting block 126, and the driving rod 146 passes through the channels on the two tenons 125, rotates the driving rod 146, and the driving rod 146 drives the two tenons 125 to move closer, and the driving rod 146 can also provide supporting force for the support rod 118, thereby supporting the flange flange; when the support assembly 11 switches from the first state to the second state, the movable block 127 rotates relative to the connecting block 126, the channel on the tenon 125 opens, and the driving rod 146 separates from the connecting block 126 and falls under the action of gravity, the two tenons 125 are unlocked, the support assembly 11 falls downward under the action of gravity, and the support blocks 111 separate to form a traction chain 119.

[0030] As another embodiment further provided by the present invention, a right-angled triangle support frame 121 for supporting the traction rod 122 is provided on the mounting rod 12 , and the end of the support frame 121 supports the bottom end of the traction rod 122 close to the middle of the frame 1 .

[0031] Specifically, the top end of the traction rod 122 is rotatably mounted on the connecting block 126 , and the bottom end is rotatably mounted on the support frame 121 , and the top end of the traction rod 122 is inclined toward the outside of the frame 1 , and a stopper 145 is provided on the top of the mounting rod 12 .

[0032] Furthermore, when the support assembly 11 is in the first state, the drive rod 146 rotates to drive the two tenons 125 to move closer, and the tenon 125 pulls the top end of the traction rod 122 to move toward the middle of the frame 1, and the top end of the traction rod 122 rises, thereby pushing the support rod 118 to rise, so that the support rod 118 supports the flange flange, and the right-angled triangle support frame 121 has better stability, and can transmit the pressure on the traction rod 122 to the mounting rod 12, and the block 145 at the top of the mounting rod 12 will prevent it from moving downward relative to the frame 1, and transmit the pressure to the frame 1, thereby facilitating the traction rod 122 to cooperate with the drive rod 146 and the support rod 118 to support the flange flange.

[0033] As another embodiment further provided by the present invention, the bottom end of the support frame 121 is hinged to the mounting rod 12 and the top cross bar is locked to the mounting rod 12 , and the support frame 121 is unlocked to allow the movable block 127 to rotate relative to the tenon block 125 .

[0034] Specifically, a locking block 128 for locking the movable block 127 is provided on the connecting block 126, a torsion spring is provided between the movable block 127 and the connecting block 126, a slope is provided on the side wall of the locking block 128 close to the connecting block 126, and a spring is provided between the locking block 128 and the connecting block 126.

[0035] Furthermore, when the flange is fixed on the turntable 22 and the clamping rod 23 is clamped on the outer edge of the flange, the staff manually abuts the multiple support blocks 111 together to form a support rod 118, and places the driving rod 146 in the groove on the connecting block 126 on the two tenons 125, and then manually pushes the movable block 127, and the bottom end of the movable block 127 moves along the slope of the locking block 128 and pushes the locking block 128 to retract into the connecting block 126 until the movable block 127 is tightly fitted with the connecting block 126, and the groove on the movable block 127 and the groove on the connecting block 126 are combined to form a channel adapted to the driving rod 146, and at this time, the locking block 128 is facing the locking groove on the movable block 127, and the movable block 127 is locked. 27 is inserted into the movable block 127 under the action of the spring, and the movable block 127 is locked on the connecting block 126. The driving rod 146 is coupled with the tenon block 125, and the tenon block 125 can be driven to move; when the support assembly 11 is switched from the first state to the second state, the support frame 121 is unlocked, the support frame 121 can rotate relative to the mounting rod 12, and the locking block 128 is retracted into the connecting block 126, the connecting block 126 is unlocked and relative to the connecting block 126 under the action of the torsion spring. At this time, the groove on the connecting block 126 is in an open state, the driving rod 146 is separated from the connecting block 126 under the action of gravity, and the tenon block 125 is unlocked, which facilitates the support assembly 11 to switch from the first state to the second state.

[0036] As another embodiment further provided by the present invention, the mounting rod 12 is moved upward to unlock the support frame 121 and the traction chain 119 is attached to the bottom of the outer edge of the flange.

[0037] Specifically, a locking rod 123 for locking the support frame 121 is slidably provided on the mounting rod 12, a slope for pushing the locking rod 123 is provided on the frame 1, a locking groove adapted to the locking rod 123 is provided on the support frame 121, a slider 124 facing the locking rod 123 is slidably provided in the locking groove, a first magnetic ring 131 is slidably provided at the connection between the support frame 121 and the traction rod 122, a first cable 135 is provided between the first magnetic ring 131 and the slider 124, springs are provided between the first magnetic ring 131 and the support frame 121, and between the slider 124 and the support frame 121, and the connection between the traction rod 122 and the support frame 121 slides A second magnetic ring 132 is provided which is attracted to the first magnetic ring 131; a third magnetic ring 133 is slidably provided at the connection between the traction rod 122 and the connecting block 126; a second pull cable 136 is provided between the second magnetic ring 132 and the third magnetic ring 133; springs are provided between the second magnetic ring 132 and the traction rod 122 and between the third magnetic ring 133 and the traction rod 122; a fourth magnetic ring 134 which is attracted to the third magnetic ring 133 is slidably provided at the connection between the connecting block 126 and the traction rod 122; a third pull cable 137 is provided between the fourth magnetic ring 134 and the locking block 128; and a spring is provided between the fourth magnetic ring 134 and the connecting block 126.

[0038] Furthermore, when the mounting rod 12 is inside the frame 1, the locking rod 123 is pushed by the frame 1 and inserted into the support frame 121, locking the support frame 121 on the mounting rod 12; during the upward movement of the mounting rod 12, the locking rod 123 loses its obstruction, and the slider 124 pushes the locking rod 123 under the action of the spring, the locking rod 123 leaves the support frame 121, the support frame 121 is unlocked, and the slider 124 drives the first magnetic ring 131 to slide through the first cable 135, the first magnetic ring 131 drives the second magnetic ring 132 attracted thereto to slide relative to the traction rod 122, and the second magnetic ring 132 drives the third magnetic ring 133 relative to the traction rod 122 through the second cable 136 122 slides, the third magnetic ring 133 drives the fourth magnetic ring 134 attracted thereto to slide relative to the connecting block 126, and the fourth magnetic ring 134 drives the locking block 128 to move through the third cable 137, the locking block 128 is retracted into the connecting block 126, the movable block 127 is unlocked, the driving rod 146 can be separated from the connecting block 126, and the support frame 121 rotates downward under the action of gravity, and pulls the tenon block 125 to move toward the two ends of the support assembly 11 through the traction rod 122, and the multiple support blocks 111 are separated to form a traction chain 119, and the mounting rod 12 continues to move upward, so that the traction chain 119 contacts the outer edge of the flange and provides supporting force to the flange.

[0039] As another embodiment further provided by the present invention, a slide plate 14 is slidably provided on the frame 1, and the clamping claw on the frame 1 rotates to record the outer diameter of the flange and drives the mounting rod 12 to move upward when the flange is separated from the supporting assembly 11.

[0040] Specifically, the frame 1 is internally rotatably provided with a first gear 143 for driving the mounting rod 12 to move, the mounting rod 12 is provided with gear teeth coupled to the first gear 143, the first gear 143 is provided with a second gear 144, the diameter of the second gear 144 is smaller than the first gear 143, the frame 1 is slidably provided with a rack 142 meshing with the second gear 144, the frame 1 is internally provided with a liquid storage chamber 141 for storing hydraulic oil, an air bag is provided in the liquid storage chamber 141, and two vertical flow channels are provided on the liquid storage chamber 141, the rack 142 extends into one of the flow channels (equivalent to a piston), and the slide plate 14 is located in the other flow channel (equivalent to a piston), the frame 1 is provided with a ratchet mechanism for preventing the slide plate 14 from moving upward (this is the prior art and will not be repeated), the frame 1 is provided with a ratchet mechanism for preventing the mounting rod 12 from moving downward (this is the prior art and will not be repeated), and the top of the slide plate 14 is symmetrically provided with slopes.

[0041] Furthermore, when the flange is fixed on the turntable 22 and the clamping rod 23 is clamped on the outer edge of the flange, the turntable 22 rotates so that the clamping rod 23 contacts the slide plate 14 and pushes the slide plate 14 downward along the slope of the slide plate 14. The position of the slide plate 14 records the diameter of the flange. The slide plate 14 squeezes the hydraulic oil in the liquid storage chamber 141 and transmits the pressure to the airbag, which contracts. At this time, the mounting rod 12 cannot move up due to the pressure of the support rod 118. After the flange turning work is completed in this state, the crane lifts the flange, the mounting rod 12 loses the downward pressure, and the airbag re-inflates to push the rack 142 up. The rack 142 is meshed with the first The second gear 144 drives the first gear 143 to rotate, and the first gear 143 pushes the mounting rod 12 to move upward through the gear teeth on the mounting rod 12, and the support assembly 11 switches from the first state to the second state. The mounting rod 12 moves upward and drives the traction chain 119 to move upward, which facilitates the traction chain 119 to contact the outer edge of the flange and provide supporting force to the flange, and the ratchet on the frame 1 can provide supporting force for the mounting rod 12, so that it is convenient for it to receive the pressure transmitted by the traction chain 119; after the work is completed, the two groups of ratchet pawls are driven to separate from the mounting rod 12 and the slide plate 14 respectively, so that the mounting rod 12 and the slide plate 14 are reset (equivalent to a ratchet wrench, which is a prior art and will not be repeated).

[0042] As another embodiment further provided by the present invention, an insertion rod 117 is slidably provided on the support block 111 , and the driving rod 146 drives the two tenon blocks 125 to move closer so that the insertion rod 117 crosses two adjacent support blocks 111 .

[0043] Specifically, a spring is provided between the insertion rod 117 and the corresponding support block 111 .

[0044] Furthermore, after the flange is fixed on the turntable 22 and the clamping rod 23 is clamped on the outer edge of the flange, the multiple support blocks 111 are manually pushed together to form a support rod 118, and the middle part of the support rod 118 is located on the central axis of the frame 1 and close to the bottom of the flange flange. At this time, the two tenons 125 are driven together, driving the insertion rod 117 to move, so that the insertion rod 117 is inserted into the adjacent support block 111, and the insertion rod 117 in the adjacent support block 111 is pushed to move further toward the middle support block 111, connecting the support blocks 111 between the two tenons 125 together, and the two tenons 125 only need to move a short distance to lock the support blocks 111 between them together.

[0045] As another embodiment further provided by the present invention, a friction block 129 for driving the insertion rod 117 to move is movably provided on the tenon block 125 , and the movable block 127 and the tenon block 125 are brought close to each other so that the friction block 129 abuts against the side wall of the insertion rod 117 .

[0046] Specifically, the friction block 129 is a rubber block, a spring is provided between the friction block 129 and the tenon block 125 , and a fourth cable 138 is provided between the friction block 129 and the locking block 128 .

[0047] Furthermore, when the movable block 127 is tightly fitted with the connecting block 126 and the locking block 128 is inserted into the movable block 127, the fourth cable 138 between the locking block 128 and the friction block 129 is relaxed, and the friction block 129 moves toward the outside of the tenon block 125 under the action of the spring and abuts against the side wall of the insertion rod 117, then the two tenons 125 move closer, and the friction block 129 moves with the tenon block 125 and pushes the insertion rod 117 to move toward the middle support block 111; when the support frame 121 is unlocked, the locking block 128 retracts into the connecting block 126, and the locking block 128 drives the friction block 129 to retract into the tenon block 125 through the fourth cable 138, and the friction block 129 is separated from the insertion rod 117, and the insertion rod 117 is retracted into the corresponding support block 111 under the action of the spring, so that the multiple support blocks 111 are unlocked, and the support blocks 111 can be separated and then rotated, and the support assembly 11 switches from the first state to the second state. Embodiment 2

[0048] A flange turning process, based on the flange turning device in the first embodiment, further comprising the following steps: S1. Fix the flange with its flange facing outward on the lathe turntable 22, and clamp the clamping rod 23 on the outer edge of the flange, push the multiple support blocks 111 together to form a support rod 118, and install the driving rod 146 between the two tenon blocks 125; S2, the driving rod 146 rotates to drive the two tenons 125 to move closer, and the tenon 125 pulls the top of the traction rod 122 to move toward the middle of the frame 1, and the top of the traction rod 122 rises, thereby pushing the support rod 118 to rise, so that the support rod 118 supports the flange flange; S3, manually adjusting the direction of the tool, the position of the slide bar 21 and the position of the movable seat 2, turning the inner wall of the flange, the outer wall of the flange, the side wall of the flange and the side wall of the flange in sequence, and removing the flange after turning is completed; S4, the driving rod 146 is separated, the two traction rods 122 pull the two tenons 125 away, the multiple support blocks 111 move away from each other, the tenon rods 115 move along the waist-shaped groove 116, the support blocks 111 rotate with each other, and the multiple support blocks 111 naturally droop under the action of gravity to become a traction chain 119, and then the flange flange is fixed inwardly on the lathe turntable 22, the installation rod 12 moves up to drive the traction chain 119 to move up, the traction chain 119 contacts the outer edge of the flange and provides support force for the flange, and the lathe turns the other side wall of the flange.

[0049] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flange turning device, characterized in that: A machine frame (1) of a lathe is provided, wherein a support assembly (11) and mounting rods (12) symmetrically distributed on both sides of the support assembly (11) are movably provided on the machine frame (1), wherein the support assembly (11) is composed of a plurality of support blocks (111) connected in sequence, wherein the bottoms of the plurality of support blocks (111) are provided with interconnected tenon grooves, wherein tenon blocks (125) corresponding to the mounting rods (12) are slidably provided in the tenon grooves, and a traction rod (122) is movably provided between the mounting rods (12) and the corresponding tenon blocks (125), wherein the support assembly (11) is assembled for the following two states: In a first state, the top ends of the two traction rods (122) are raised to push the two tenon blocks (125) closer together, and the plurality of support blocks (111) are inserted into each other to form a support rod (118) that abuts against the bottom of the flange. In the second state, the two traction rods (122) pull the two tenons (125) apart, so that the plurality of support blocks (111) are separated and form a traction chain (119) that lifts the bottom of the outer edge of the flange.

2. A flange turning device according to claim 1, characterized in that: It also includes a driving rod (146) for driving the two tenons (125) to move synchronously in opposite directions, wherein the driving rod (146) is separated from the tenons (125) to switch the support assembly (11) from the first state to the second state.

3. A flange turning device according to claim 2, characterized in that: A movable block (127) is hingedly connected to the tenon block (125) and is used to clamp the hoop to form a channel that matches the driving rod (146).

4. A flange turning device according to claim 3, characterized in that: A right-angled triangle support frame (121) for supporting the traction rod (122) is provided on the mounting rod (12), and the end of the support frame (121) supports the bottom end of the traction rod (122) close to the middle of the frame (1).

5. A flange turning device according to claim 4, characterized in that: The bottom end of the support frame (121) is hinged to the mounting rod (12) and the top cross bar is locked to the mounting rod (12); the support frame (121) is unlocked to allow the movable block (127) to rotate relative to the tenon block (125).

6. A flange turning device according to claim 5, characterized in that: The mounting rod (12) moves upward so that the support frame (121) is unlocked and the traction chain (119) is attached to the bottom of the outer edge of the flange.

7. A flange turning device according to claim 1, characterized in that: A slide plate (14) is slidably arranged on the frame (1), and the clamping claw on the frame (1) rotates to record the outer diameter of the flange, and drives the mounting rod (12) to move upward when the flange is separated from the support assembly (11).

8. A flange turning device according to claim 3, characterized in that: An insertion rod (117) is slidably disposed on the support block (111), and the driving rod (146) drives the two tenon blocks (125) to move closer together so that the insertion rod (117) traverses two adjacent support blocks (111).

9. A flange turning device according to claim 8, characterized in that: A friction block (129) for driving the insertion rod (117) to move is movably provided on the tenon block (125); the movable block (127) and the tenon block (125) are brought close together so that the friction block (129) abuts against the side wall of the insertion rod (117).

10. A flange turning process, based on the flange turning device according to any one of claims 1 to 9, characterized in that: The following steps are also included: S1, fix the flange with the flange facing outward on the lathe turntable (22), push the multiple support blocks (111) together to form a support rod (118) and install the drive rod (146) between the two tenon blocks (125); S2, rotating the driving rod (146) to stabilize the support rod (118) and make the support rod (118) abut against the bottom of the flange; S3, lathe turns the side wall of the flange on the flange side, and removes the flange after turning; S4, the driving rod (146) is separated, the supporting blocks (111) are dispersed to form a traction chain (119), and then the flange is fixed on the lathe turntable (22) with the flange facing inward, and the lathe turns the other side wall of the flange.

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