A pipe cutting device for fire protection engineering

Abstract

The present invention discloses a pipe cutting device for fire protection engineering, which belongs to the field of pipe processing technology, including a base plate, a support seat plate fixedly installed on the base plate, a positioning component arranged on the base plate, a fixing component and an auxiliary component arranged on the support seat plate, and by setting a limit ratchet ring and a limit ratchet wheel, the displacement direction of the circular rotating plate 2 can be limited, thereby locking the position of the cutting disc between the circular rotating plate 1 and the circular rotating plate 2, so that the cutting disc will not be loose during forward and reverse rotation, and by setting a limit ratchet strip, the displacement direction of the L-shaped adjusting slide plate can be limited, thereby limiting the position of the separation rotating plate, thereby improving the stability of the cutting disc during cutting, and through the mutual cooperation of the auxiliary component and the fixing component, the cutting disc on the fixing component can be automatically replaced according to the material of the pipe to be cut, and can also be automatically replaced when the cutting disc on the fixing component is damaged.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline processing, and in particular to a pipeline cutting device used in fire protection engineering. Background Art

[0002] The pipes of fire protection engineering may involve different materials, such as steel pipes, stainless steel pipes, copper pipes, etc., and may also involve pipes of different sizes. The hardness and wear resistance of pipes of different materials are different, and different pipe materials may require different cutting methods and speeds. Therefore, when cutting the pipes of fire protection engineering, it is necessary to consider the material and size of the pipe to be cut and select a suitable saw blade to cut the pipe. A suitable saw blade can extend its service life and reduce the possibility of additional processing, thereby improving the quality and efficiency of cutting. The existing pipe cutting device cannot automatically replace the saw blade according to the material and size of the pipe to be cut, and requires the staff to repeatedly manually replace the saw blade, which is inefficient and easily involves the safety of the staff. Therefore, the present invention provides a pipe cutting device for fire protection engineering. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a pipe cutting device for fire protection engineering, which overcomes the problem that the saw blade cannot be automatically replaced according to the material and size of the pipe to be cut, and the staff needs to repeatedly replace the saw blade manually, which is inefficient and easily involves the safety of the staff.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipe cutting device for fire protection engineering, comprising a base plate, a supporting seat plate fixedly mounted on the base plate, a positioning assembly arranged on the base plate, the positioning assembly comprising four supporting slides, each of which is rotatably mounted with a positioning long rod, the four positioning long rods are used to fix the pipe to be cut, the supporting seat plate is provided with a fixing assembly and an auxiliary assembly, the fixing assembly comprising a fixing slide, a separation slide is slidably mounted on the fixing slide, a separation rotating plate is rotatably mounted on the separation slide, a circular rotating seat is rotatably mounted on the separation rotating plate, a spline shaft is slidably mounted on the circular rotating seat, a circular rotating plate 2 is fixedly mounted on the spline shaft, a circular rotating plate 1 is rotatably mounted on the fixing slide, a cutting disc is movably arranged on the circular rotating plate 1, the circular rotating plate 1 and the circular rotating plate 2 are used to fix the cutting disc, the auxiliary assembly comprises a plurality of storage cylinders, the storage cylinders are used to store the cutting discs, the auxiliary assembly also comprises a replacement unit, the replacement unit is used to replace the cutting discs.

[0005] Furthermore, supporting frames are symmetrically fixed on both sides of the base plate, and the two ends of the supporting slide are slidably matched with the corresponding supporting frames. Four long positioning rods are distributed in a circular array on the base plate, and positioning slides are symmetrically slidably installed on the base plate. The positioning slides are movably connected to the corresponding two supporting slides. A double-headed threaded screw is rotatably installed on the base plate, and the threads at both ends of the double-headed threaded screw respectively form a spiral pair with the corresponding positioning slides.

[0006] Furthermore, the fixed slide is slidably installed on the support seat plate, and an adjusting screw is rotatably installed on the fixed slide. The adjusting screw and the support seat plate constitute a spiral pair, and spring sheets are symmetrically fixedly arranged between the separation slide and the fixed slide, and a torsion spring 1 is arranged between the separation rotating plate and the separation slide. The elastic force of the torsion spring 1 is always smaller than the sum of the elastic forces of the two spring sheets between the fixed slide and the separation slide, and a separation gear is rotatably installed on the side of the separation rotating plate, and a torsion spring 2 is arranged between the separation rotating plate and the separation gear.

[0007] Furthermore, six support rods 2 are fixedly arranged in a circular array on the circular rotating plate 1, six through holes cooperating with the support rods 2 are arranged in a circular array on the cutting disc, the through holes on the cutting disc are movably connected with the support rods 2, and the circular rotating plate 2 and the support rods 2 on the circular rotating plate 1 are slidably matched.

[0008] Furthermore, the circular swivel seat and the spline shaft form a spline sliding fit, a limit ratchet is rotatably installed on the separation swivel plate, a separation screw is fixedly provided on the side of the limit ratchet, the separation screw and the circular swivel seat form a spiral pair, a limit ratchet ring is slidably installed on the side of the circular swivel seat, and the limit ratchet ring and the limit ratchet are engaged to form a ratchet mechanism.

[0009] Furthermore, an L-shaped limiting slide is slidably installed on the side of the fixed slide, a groove cooperating with the L-shaped limiting slide is provided on the side of the circular rotating plate one, the L-shaped limiting slide is used to limit the rotation of the circular rotating plate one, a T-shaped slide is slidably installed on the separation rotating plate, a square push rod is fixedly provided on the side of the L-shaped limiting slide, and the T-shaped slide is used to push the limiting ratchet ring and the square push rod to move.

[0010] Furthermore, an L-shaped adjusting slide and a limiting ratchet are slidably installed on the fixed slide. When the L-shaped adjusting slide and the T-shaped slide are engaged, the two are movably connected. A fixed screw is rotatably installed on the fixed slide. The fixed screw and the L-shaped adjusting slide form a spiral pair. A plurality of limiting ratchets and a plurality of separation teeth are fixedly provided on the side of the L-shaped adjusting slide. When the limiting ratchets on the L-shaped adjusting slide and the limiting ratchet are engaged, a ratchet mechanism is formed. When the separation gear and the separation teeth on the L-shaped adjusting slide are engaged, a gear rack pair is formed. A trapezoidal block 1 is fixedly provided on the limiting ratchet, and a trapezoidal block 2 is fixedly provided on the side of the supporting seat plate. The trapezoidal block 2 is used to push the trapezoidal block 1 to move.

[0011] Furthermore, an auxiliary slide is slidably installed on the support seat plate, and multiple storage cylinders are evenly fixed on the auxiliary slide. Six support rods are fixedly arranged in a circular array on the inner side of the storage cylinder. The through holes on the cutting discs slide with the corresponding support rods when engaged. A covering circular plate is rotatably installed on the storage cylinders, and the covering circular plate is used to cover the storage cylinders.

[0012] Furthermore, the replacement unit includes a shift slide slidably mounted on the support seat plate, a shifting turn plate is rotatably mounted on the shift slide, an arc-shaped friction strip and two suction cups are fixedly mounted on the shifting turn plate, a vacuum generator is also fixedly mounted on the shifting turn plate, the suction cups are connected to the vacuum generator, friction rods are fixedly mounted on the sides of the covering circular plate, and friction exists between the arc-shaped friction strip and the friction rod when they are in contact.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) By setting a positioning component, the present invention can realize the rapid fixation of pipes of different sizes, and can also make the pipes rotate, so as to facilitate the subsequent ring cutting of the pipes. (2) By setting a fixing component, the present invention can realize the rapid fixation of the cutting disc under the action of the circular rotating plate 1, the circular rotating plate 2 and the supporting rod 2. (3) By setting a limiting ratchet ring and a limiting ratchet wheel, the present invention can limit the displacement direction of the circular rotating plate 2, thereby locking the position of the cutting disc between the circular rotating plate 1 and the circular rotating plate 2, so that the cutting disc will not loosen during forward and reverse rotation. (4) By setting a limiting ratchet strip, the present invention can limit the displacement direction of the L-shaped adjustment slide, thereby limiting the position of the separation rotating plate, thereby improving the stability of the cutting disc during cutting. (5) By the mutual cooperation of the auxiliary component and the fixing component, the present invention can automatically replace the cutting disc on the fixing component according to the material of the pipe to be cut, and can also automatically replace the cutting disc on the fixing component when it is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle.

[0016] Figure 3 It is a side view of the overall structure of the present invention.

[0017] Figure 4 It is a schematic structural diagram of the fixing assembly of the present invention.

[0018] Figure 5 It is a schematic structural diagram of the limiting spine of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the T-shaped slide plate of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the limit block of the present invention.

[0021] Figure 8 for Figure 7 A local enlarged schematic diagram of point B in the middle.

[0022] Fig. 9 It is a structural schematic diagram of the separation screw rod of the present invention.

[0023] Fig.10 It is a front view of the fixing assembly of the present invention.

[0024] Fig.11 It is a schematic diagram of the structure of the fixed slide frame of the present invention.

[0025] Fig.12 for Fig.11 A partial enlarged schematic diagram of point C in the middle.

[0026] Fig.13 It is a schematic diagram of the structure of the auxiliary components of the present invention.

[0027] Fig.14 It is a schematic diagram of the structure of the covering circular plate of the present invention.

[0028] Fig.15 It is a front view of the auxiliary component of the present invention.

[0029] Fig.16 It is a schematic diagram of the structure inside the storage cylinder of the present invention.

[0030] Figure numerals: 101-bottom plate; 102-support seat plate; 103-support base frame; 104-positioning long rod; 105-support slide; 106-positioning motor; 107-double-threaded screw rod; 108-positioning slide plate; 109-arc-shaped support plate; 110-cutting disc; 111-storage cylinder; 112-covering circular plate; 113-driving motor; 114-fixed slide; 115-friction circular rod; 116-auxiliary slide plate; 117-positioning motor; 118-positioning screw rod; 119-shifting screw rod; 120-shifting motor; 121-shifting slide plate; 122-transposition motor; 123-transposition rotating plate; 124-vacuum generator; 125-suction cup; 126-arc-shaped friction strip plate; 127-auxiliary Motor; 128-auxiliary screw rod; 129-support rod one; 130-circular rotating plate one; 131-L-shaped limiting slide plate; 132-fixed motor; 133-fixed screw rod; 134-L-shaped adjusting slide plate; 135-limiting ratchet; 136-trapezoidal block one; 137-separation slide plate; 138-separation rotating plate; 139-separation gear; 140-limiting ratchet; 141-square push rod; 142-separation tooth; 143-T-shaped slide plate; 144-cutting motor; 145-circular rotating plate two; 146-circular rotating seat; 147-limiting ratchet ring; 148-limiting ratchet; 149-limiting block; 150-support rod two; 151-separation screw rod; 152-spline shaft; 153-trapezoidal block two; 154-arc block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example: Reference Figure 1-Figure 16A pipe cutting device for fire protection engineering includes a bottom plate 101, a support base plate 102 is fixedly installed on the bottom plate 101, a positioning assembly is arranged on the bottom plate 101, the positioning assembly includes four support slides 105, and the support slides 105 are rotatably installed with positioning long rods 104, and the four positioning long rods 104 are used to fix the pipe to be cut, and support base frames 103 are symmetrically fixedly arranged on both sides of the bottom plate 101, and the two ends of the support slide 105 are slidably matched with the corresponding support base frames 103, and the four positioning long rods 104 are distributed in a circular array on the bottom plate 101, and positioning slide plates 108 are symmetrically slidably installed on the bottom plate 101. Plate 108 is movably connected with the corresponding two supporting slides 105, a double-headed threaded screw 107 is rotatably installed on the base plate 101, and the threads at both ends of the double-headed threaded screw 107 respectively form a spiral pair with the corresponding positioning slide 108, a positioning motor 106 is fixedly installed on the base plate 101, and the output shaft of the positioning motor 106 is fixedly connected to the double-headed threaded screw 107, a driving motor 113 is fixedly installed on the side of one of the four supporting slides 105, and the output shaft of the driving motor 113 is fixedly connected to the corresponding positioning long rod 104, and an arc-shaped supporting plate 109 is fixedly provided on the base plate 101 for auxiliary support of the pipe to be cut.

[0033] In the initial position, the four positioning long rods 104 are located at the farthest position from each other. At this time, the two positioning slides 108 are located at the farthest position from each other. The pipe to be cut is placed on the arc support plate 109 and the position of the pipe on the arc support plate 109 is adjusted. Then, the positioning motor 106 is started to drive the double-headed threaded screw 107 to rotate, so that the two positioning slides 108 move towards each other. Since the positioning slides 108 are movably connected with the corresponding two supporting slides 105, the four supporting slides 105 move towards each other, thereby making The four positioning rods 104 move toward each other, that is, the positioning rods 104 move toward the surface of the pipe on the arc support plate 109, and finally the four positioning rods 104 all contact the pipe surface. At this time, the pipe to be cut is in a fixed state under the action of the four positioning rods 104, and at this time, the pipe is separated from the contact with the arc support plate 109 under the action of the positioning rods 104, and then the driving motor 113 is started to drive the corresponding positioning rod 104 to rotate, that is, the pipe rotates, and the four positioning rods 104 rotate synchronously at this time.

[0034] The support base plate 102 is provided with a fixed assembly, which includes a fixed slide 114, which is slidably mounted on the support base plate 102, and a positioning screw 118 is rotatably mounted on the fixed slide 114, and the positioning screw 118 and the support base plate 102 form a spiral pair, and a positioning motor 117 is fixedly mounted on the fixed slide 114, and the output shaft of the positioning motor 117 is fixedly connected to the positioning screw 118, and the positioning motor 117 is started to drive the positioning screw 118 to rotate, and the positioning screw 118 is rotated. Under the action of 18, the fixed slide 114 slides up and down relative to the supporting seat plate 102, and a separation slide 137 is slidably installed on the fixed slide 114, and a spring sheet is symmetrically fixedly arranged between the separation slide 137 and the fixed slide 114, and a separation rotating plate 138 is rotatably installed on the separation slide 137, and a torsion spring 1 is arranged between the separation rotating plate 138 and the separation slide 137, one end of the torsion spring 1 is fixedly connected to the separation slide 137, and the other end of the torsion spring 1 is fixedly connected to the separation rotating plate 138.

[0035] A separation gear 139 is rotatably installed on the side of the separation rotating plate 138, and a second torsion spring is arranged between the separation rotating plate 138 and the separation gear 139, one end of the second torsion spring is fixedly connected to the separation gear 139, and the other end of the first torsion spring is fixedly connected to the separation rotating plate 138, the elastic force of the first torsion spring is always smaller than the sum of the elastic forces of the two spring sheets between the fixed slide 114 and the separation slide 137, and the elastic force of the second torsion spring is always greater than the sum of the elastic forces of the first torsion spring and the spring sheet, and two limit blocks 149 are fixedly arranged on the separation slide 137, and the limit blocks 149 are used to limit the rotation of the separation rotating plate 138, and under the action of the limit blocks 149, the rotation range of the separation rotating plate 138 relative to the separation slide 137 is 90 degrees.

[0036] The fixed slide 114 is also slidably mounted with an L-shaped adjustment slide 134 and a limit ratchet 140, a spring is arranged between the limit ratchet 140 and the fixed slide 114, a fixed screw rod 133 is rotatably mounted on the fixed slide 114, the fixed screw rod 133 and the L-shaped adjustment slide 134 form a spiral pair, a fixed motor 132 is fixedly mounted on the fixed slide 114, the output shaft of the fixed motor 132 is fixedly connected to the fixed screw rod 133, and the side of the L-shaped adjustment slide 134 is fixed. A plurality of limiting ratchets 135 and a plurality of separating teeth 142 are provided. When the limiting ratchets 135 on the L-shaped positioning slide plate 134 and the limiting ratchet 140 are engaged, a ratchet mechanism is formed. When the separating gear 139 and the separating teeth 142 on the L-shaped positioning slide plate 134 are engaged, a gear rack pair is formed. A trapezoidal block 136 is fixedly provided on the limiting ratchet 140, and a trapezoidal block 2 153 is fixedly provided on the side of the support seat plate 102. The trapezoidal block 2 153 is used to push the trapezoidal block 136 to move.

[0037] When the springs between torsion spring 1, torsion spring 2, spring sheet, limit ratchet 140 and fixed slide 114 are not compressed, trapezoidal block 136 and trapezoidal block 2 153 are not in contact, that is, the separation slide 137 is at the farthest position from trapezoidal block 136, the separation rotating plate 138 is in a horizontal state, the separation rotating plate 138 contacts the limit block 149 farthest from the bottom plate 101, and the L-shaped adjustment slide 134 is at the closest position to the fixed motor 132.

[0038] Starting the fixed motor 132 drives the fixed screw rod 133 to rotate, so that the L-shaped adjustment slide plate 134 moves in the direction away from the fixed motor 132. At this time, the limiting ratchet 135 moves relative to the limiting ratchet bar 140. Under the action of the separation tooth 142, and because the elastic force of the torsion spring 1 is always smaller than the sum of the elastic forces of the two spring sheets between the fixed slide 114 and the separation slide plate 137, and the elastic force of the torsion spring 1 is always smaller than the sum of the elastic forces of the two spring sheets between the fixed slide 114 and the separation slide plate 137, that is, at this time, the separation rotating plate 138 and the separation gear 139 rotate synchronously, and the torsion spring 1 between the separation rotating plate 138 and the separation slide plate 137 is compressed, which finally causes the separation rotating plate 138 to rotate to a vertical downward state. At this time, the separation rotating plate 138 contacts the limit block 149 closest to the bottom plate 101. Under the action of the separation gear 139, the separation rotating plate 138 cannot continue to rotate, and the L-shaped adjustment slide 134 continues to move. That is, at this time, the separation rotating plate 138 and the separation gear 139 move synchronously, and the spring sheet between the separation slide 137 and the fixed slide 114 is compressed, and finally the separation slide 137 moves to the position closest to the trapezoidal block 136. At this time, the spring sheet between the fixed slide 114 and the separation slide 137 cannot continue to be compressed, and the L-shaped adjustment slide 134 continues to move, and the separation gear 139 rotates relative to the separation rotating plate 138, and the torsion spring 2 between the separation rotating plate 138 and the separation gear 139 is compressed.

[0039] Since the limiting ratchet 140 and the limiting ratchet 135 constitute a ratchet mechanism, the L-shaped positioning slide 134 cannot move in the direction close to the fixed motor 132 at this time, and the positioning motor 117 is started to drive the fixed slide 114 to move upward, so that the trapezoidal block 136 contacts the trapezoidal block 2 153, and the fixed slide 114 continues to move, that is, the trapezoidal block 136 continues to move upward, and under the action of the trapezoidal block 2 153, the trapezoidal block 136 moves in the direction away from the fixed slide 114, and the limiting ratchet 140 moves synchronously, and the spring between the limiting ratchet 140 and the fixed slide 114 is compressed, and finally the limiting ratchet 140 is disengaged from the limiting ratchet 135, and at this time the L-shaped positioning slide 134 can move in the direction close to the fixed motor 132 under the action of the fixed screw rod 133.

[0040] The separating rotating plate 138 is rotatably mounted with a circular rotating seat 146, and a spline shaft 152 is slidably mounted on the circular rotating seat 146. The circular rotating seat 146 and the spline shaft 152 form a spline sliding fit. A circular rotating plate 2 145 is fixedly arranged on the spline shaft 152. A circular rotating plate 130 is rotatably mounted on the fixed slide 114. A cutting disc 110 is movably arranged on the circular rotating plate 130. The circular rotating plate 130 and the circular rotating plate 2 145 are used to fix the cutting disc 110. There are 6 fixed support rods 150 in a circumferential array, and 6 through holes cooperating with the support rods 150 are arranged in a circumferential array on the cutting disc 110. The through holes on the cutting disc 110 are movably connected with the support rods 150, and the circular rotating plate 145 and the support rods 150 on the circular rotating plate 1 130 are slidably matched. When the cutting disc 110 is in the position between the circular rotating plate 1 130 and the circular rotating plate 145, the through holes on the cutting disc 110 are respectively in engagement with the corresponding support rods 150.

[0041] A limiting ratchet 148 is rotatably installed on the separation rotating plate 138, and a cutting motor 144 is fixedly installed on the separation rotating plate 138. The output shaft of the cutting motor 144 is fixedly connected to the limiting ratchet 148. A separation screw rod 151 is fixedly installed on the side of the limiting ratchet 148. The separation screw rod 151 and the circular rotating seat 146 form a spiral pair. A limiting ratchet ring 147 is slidably installed on the side of the circular rotating seat 146. The limiting ratchet ring 147 and the limiting ratchet 148 are engaged to form a ratchet mechanism, and a spring is arranged between the limiting ratchet ring 147 and the circular rotating seat 146.

[0042] In the initial position, the cutting disc 110 is located between the circular rotating plate 130 and the circular rotating plate 2 145, and the cutting disc 110 is in a fixed state under the action of the circular rotating plate 130 and the circular rotating plate 2 145. At this time, the circular rotating plate 2 145 is located at the position closest to the circular rotating plate 130, and the spring between the circular rotating seat 146 and the limiting ratchet ring 147 is not compressed. At this time, the cutting motor 144 is started to drive the limiting ratchet 148 to rotate, and the circular rotating plate 130, the circular rotating plate 2 145, the circular rotating seat 146, the support rod 2 150, the separation screw rod 151, and the spline shaft 152 rotate synchronously, so that the cutting disc 110 Rotation occurs synchronously, and since the limiting ratchet ring 147 and the limiting ratchet wheel 148 constitute a ratchet mechanism, the limiting ratchet wheel 148 is driven to rotate relative to the limiting ratchet ring 147, and under the action of the separating screw rod 151, the spline shaft 152 moves toward the direction close to the circular rotating plate 130. At this time, the limiting ratchet wheel 148 cannot rotate in the direction that causes the spline shaft 152 to move away from the circular rotating plate 2 145. That is, at this time, under the action of the limiting ratchet ring 147 and the limiting ratchet wheel 148, the position of the circular rotating plate 2 145 is locked, that is, the position of the cutting disc 110 between the circular rotating plate 130 and the circular rotating plate 2 145 is locked.

[0043] When replacing the cutting disc 110 on the fixed component, the limiting ratchet ring 147 is pushed to move away from the circular rotating plate 130, and the spring between the limiting ratchet ring 147 and the circular rotating seat 146 is compressed, which eventually causes the limiting ratchet ring 147 to disengage from the limiting ratchet 148. At this time, the cutting motor 144 is driven to drive the limiting ratchet 148 to rotate, and the separating screw rod 151 rotates synchronously, so that the spline shaft 152 moves away from the circular rotating plate 130, and the circular rotating plate 145 slides relative to the support rod 150, and the circular rotating plate 145 moves away from the cutting disc 110 on the fixed component, that is, the circular rotating plate 145 releases the fixation of the cutting disc 110.

[0044] An L-shaped limiting slide 131 is slidably installed on the side of the fixed slide 114, a spring is arranged between the fixed slide 114 and the L-shaped limiting slide 131, a groove is arranged on the side of the circular rotating plate 130 for cooperating with the L-shaped limiting slide 131, the L-shaped limiting slide 131 is used to limit the rotation of the circular rotating plate 130, a T-shaped slide 143 is slidably installed on the separation rotating plate 138, a spring is arranged between the T-shaped slide 143 and the separation rotating plate 138, a square push rod 141 is fixedly arranged on the side of the L-shaped limiting slide 131, the T-shaped slide 143 is used to push the limiting ratchet ring 147 and the square push rod 141 to move, an arc block 154 is fixedly arranged on the end of the L-shaped adjusting slide 134, and a sliding groove cooperating with the arc block 154 is arranged on the T-shaped slide 143.

[0045] When the cutting disc 110 on the fixed assembly is in a fixed state, the arc block 154 is in an engaged state with the slide groove on the T-shaped slide 143, the spring between the T-shaped slide 143 and the separation rotating plate 138 and the spring between the L-shaped limiting slide 131 and the fixed slide 114 are all compressed. At this time, the T-shaped slide 143 does not contact the separation slide 137, and the T-shaped slide 143 and the square push rod 141 are in a contact state. Under the action of the T-shaped slide 143, the L-shaped limiting slide 131 is not in an engaged state with the groove on the circular rotating plate 130.

[0046] Before the cutting disc 110 on the fixed assembly needs to be replaced, the cutting motor 144 is first started to drive the cutting disc 110, the circular rotating plate 130, and the circular rotating plate 2 145 to rotate synchronously, so that the state of the groove on the circular rotating plate 130 corresponds to the L-shaped limiting slide plate 131, and then the adjusting motor 117 is started. Under the action of the trapezoidal block 136 and the trapezoidal block 2 153, the limiting ratchet 140 is disengaged from the limiting ratchet 135, and then the fixed motor 132 is started to drive the L-shaped adjusting slide plate 134 to rotate, so that the L-shaped adjusting slide plate 134 moves in the direction close to the fixed motor 132. Under the action of the arc block 154, the T-shaped slide plate 143 moves synchronously, and then under the action of the square push rod 141, the L-shaped limiting slide plate 131 moves synchronously at this time, and the spring between the fixed slide 114 and the L-shaped limiting slide plate 131 and the spring between the T-shaped slide plate 143 and the separation rotating plate 138 begin to recover, so that the fixed slide 114 The spring between the L-shaped limiting slide plate 131 is fully restored, that is, the L-shaped limiting slide plate 131 and the groove on the circular rotating plate 130 are engaged. Under the action of the L-shaped limiting slide plate 131, the circular rotating plate 130 cannot rotate freely at this time, and the T-shaped slide plate 143 contacts the limiting ratchet ring 147. The L-shaped adjusting slide plate 134 continues to move. At this time, the T-shaped slide plate 143 is disengaged from the square push rod 141 and continues to move in the direction away from the fixed motor 132. Under the action of the T-shaped slide plate 143, the limiting ratchet ring 147 moves in the direction away from the circular rotating plate 2 145, and the spring between the limiting ratchet ring 147 and the circular rotating seat 146 is compressed, and finally the limiting ratchet ring 147 and the limiting ratchet wheel 148 are disengaged. At this time, the spring between the T-shaped slide plate 143 and the separation rotating plate 138 is fully restored, and the elastic force of the spring between the separation rotating plate 138 and the T-shaped slide plate 143 is always greater than the elastic force of the spring between the limiting ratchet ring 147 and the circular rotating seat 146.

[0047] At this time, the torsion spring between the separation rotating plate 138 and the separation gear 139 is completely restored, and then the cutting motor 144 is started to drive the limiting ratchet 148 and the separation screw rod 151 to rotate, that is, the circular rotating plate 2 145 and the spline shaft 152 are moved in the direction away from the circular rotating plate 1 130, and finally the circular rotating plate 2 145 is moved to the position farthest from the circular rotating plate 1 130. At this time, the circular rotating plate 2 145 is not out of contact with the support rod 2 150, and the L-shaped adjustment slide plate 134 continues to move, and the separation slide plate 137 and the separation rotating plate 138 move synchronously. The spring sheet between the separation slide plate 137 and the fixed slide 114 begins to recover, that is, the circular rotating plate 2 145 moves away from the circular rotating plate 130. The circular rotating plate 145 finally disengages from the supporting rod 150. At this time, the spring sheet between the fixed slide 114 and the separating slide 137 is completely restored, and the L-shaped adjusting slide 134 continues to move. The separating rotating plate 138 and the separating gear 139 rotate synchronously. At this time, the T-shaped slide 143 rotates relative to the L-shaped adjusting slide 134, and the T-shaped slide 143 rotates relative to the arc block 154, that is, during the movement of the L-shaped adjusting slide 134, the T-shaped slide 143 rotates relative to the arc block 154, and during the rotation of the separating rotating plate 138, the T-shaped slide 143 disengages from the arc block 154, and finally the separating rotating plate 138 rotates to a horizontal state.

[0048] An auxiliary component is arranged on the support base plate 102, and the auxiliary component includes a plurality of storage cylinders 111, and the storage cylinders 111 are used to store the cutting discs 110. An auxiliary slide plate 116 is also slidably mounted on the support base plate 102, and an auxiliary screw rod 128 is rotatably mounted on the auxiliary slide plate 116. The auxiliary screw rod 128 and the support base plate 102 form a spiral pair, and an auxiliary motor 127 is fixedly mounted on the auxiliary slide plate 116. The output shaft of the auxiliary motor 127 is fixedly connected to the auxiliary screw rod 128. A plurality of storage cylinders 111 are evenly fixedly mounted on the auxiliary slide plate 116, and six support rods 129 are fixedly arranged in a circular array on the inner side of the storage cylinder 111. The through holes on the cutting disc 110 are aligned with the pair of supporting rods 129. When the corresponding support rods 129 are engaged, they slide together. One of the multiple storage cylinders 111 is used to place the damaged cutting disc 110, and the remaining storage cylinders 111 are used to place different types of cutting discs 110. When the cutting disc 110 is placed in the storage cylinder 111, each through hole on the cutting disc 110 is engaged with the corresponding support rod 129. A covering circular plate 112 is rotatably installed on the storage cylinder 111. The covering circular plate 112 is used to cover the storage cylinder 111. A torsion spring three is arranged between the storage cylinder 111 and the covering circular plate 112. One end of the torsion spring three is fixedly connected to the storage cylinder 111, and the other end of the torsion spring three is fixedly connected to the covering circular plate 112.

[0049] The auxiliary component also includes a replacement unit, which is used to replace the cutting disc 110. The replacement unit includes a shift slide 121 slidably mounted on the support base plate 102, a shift screw 119 is rotatably mounted on the support base plate 102, and the shift screw 119 and the shift slide 121 form a spiral pair. A shift motor 120 is also fixedly mounted on the support base plate 102, and the output shaft of the shift motor 120 is fixedly connected to the shift screw 119. A transposition rotating plate 123 is rotatably mounted on the shift slide 121, and a transposition motor 122 is also fixedly mounted on the shift slide 121. The output shaft is fixedly connected to the transposition rotating plate 123, on which an arc-shaped friction strip 126 and two suction cups 125 are fixedly provided, and on which a vacuum generator 124 is also fixedly installed, and the suction cups 125 are connected to the vacuum generator 124, and on the sides of the covering circular plate 112, friction rods 115 are fixedly provided, and when the arc-shaped friction strip 126 and the friction rod 115 are in contact, there is friction between the two, and the portion of the transposition rotating plate 123 between the two suction cups 125 is concave, and the concave shape on the transposition rotating plate 123 is used to make way for the support rod 1 129 and the support rod 2 150.

[0050] Working principle: When the cutting disc 110 on the fixed component needs to be replaced according to the material of the pipe to be cut, the cutting motor 144 is started to drive the cutting disc 110, the circular rotating plate 130, and the circular rotating plate 2 145 to rotate synchronously, so that the state of the groove on the circular rotating plate 130 corresponds to the L-shaped limit slide plate 131, and then the adjustment motor 117 is started to drive the adjustment screw rod 118 to rotate, so that the fixed slide 114 moves upward, so that the trapezoidal block 136 contacts the trapezoidal block 2 153, and the fixed slide 114 continues to move. Under the action of 153, the limiting ratchet 140 disengages from the limiting ratchet 135, that is, the restriction on the moving direction of the L-shaped adjustment slide 134 is released. In the initial position, the transposition rotating plate 123 is in a vertical downward state, and the auxiliary slide 116 is located at the farthest position from the bottom plate 101. Then the shift motor 120 is started to drive the shift screw 119 to rotate, so that the shift slide 121 moves to the side of the fixed component. At this time, the axis of the cutting disc 110 on the fixed component, the axis of the cutting disc 110 in the storage cylinder 111, and the axis of the transposition motor 122 are on the same straight line.

[0051] Then, the transposition motor 122 is started to drive the transposition rotating plate 123 to rotate 90 degrees, so that the suction cup 125 on the transposition rotating plate 123 moves to the side of the cutting disc 110 on the fixed component, and then the shift motor 120 is started to drive the transposition motor 122 to move, so that the suction cup 125 on the transposition rotating plate 123 contacts the cutting disc 110 on the fixed component, and then the vacuum generator 124 is started to make the two suction cups 125 adsorb and fix the cutting disc 110, and then the fixed motor 132 is started to drive the fixed screw rod 133 to rotate, so that the L-shaped adjusting slide plate 134 moves in the direction close to the fixed motor 132, and finally the L-shaped limiting slide plate 131 is engaged with the groove on the circular rotating plate 130, and the T-shaped slide plate 143 makes the limiting ratchet ring 147 disengage from the limiting ratchet 148, and then the cutting motor 144 is started to drive the limiting ratchet 148 and the separating screw rod 151 to be synchronously released. The circular rotating plate 145 and the spline shaft 152 move in a direction away from the circular rotating plate 130, and the spline shaft 152 slides relative to the circular rotating seat 146. At this time, the cutting disc 110 on the fixed component cannot move under the action of the two suction cups 125, and finally the torsion spring between the separation rotating plate 138 and the separation gear 139 is completely restored, the L-shaped adjustment slide 134 continues to move, the separation slide 137, the separation rotating plate 138, and the circular rotating plate 145 move synchronously, and finally the spring sheet between the fixed slide 114 and the separation slide 137 is completely restored. At this time, the circular rotating plate 145 is disengaged from the contact with the support rod 150, the L-shaped adjustment slide 134 continues to move, the separation rotating plate 138 and the separation gear 139 rotate synchronously, and finally the separation rotating plate 138 rotates to a horizontal state, and the T-shaped slide 143 is disengaged from the engagement with the arc block 154.

[0052] Then drive the shift slide 121 to move, and under the action of the suction cup 125, the cutting disc 110 moves synchronously, and finally the cutting disc 110 is disengaged from the support rod 150, and then start the transposition motor 122 to drive the transposition rotating plate 123 to rotate 90 degrees, so that the cutting disc 110 rotates to the position closest to the base plate 101, and then drive the shift slide 121 to move relative to the support seat plate 102, so that the cutting disc 110 moves to the side of the storage cylinder 111 of the same specification as the cutting disc 110. In the initial position, the torsion spring between the covering circular plate 112 and the storage cylinder 111 is not compressed. At this time, the storage cylinder 111 is in a covering state under the action of the covering circular plate 112.

[0053] Then, the transposition motor 122 is started to drive the transposition rotating plate 123 to rotate, so that the arcuate friction strip 126 rotates in the direction close to the friction rod 115 corresponding to the storage cylinder 111, so that the arcuate friction strip 126 contacts the friction rod 115, and the transposition rotating plate 123 continues to rotate, that is, the arcuate friction strip 126 continues to rotate. Under the action of the friction force between the friction rod 115 and the arcuate friction strip 126, the covering circular plate 112 rotates relative to the storage cylinder 111, and the torsion spring between the storage cylinder 111 and the covering circular plate 112 is compressed, and finally the axis of the cutting disc 110 and the axis of the cutting disc 110 in the storage cylinder 111 are in the same straight line. The cover disc 112 is rotated 180 degrees to be located outside the cutting disc 110, and then the transposition motor 122 is driven to move, so that the cutting disc 110 moves toward the storage cylinder 111, and the arc-shaped friction strip 126 slides relative to the friction rod 115 corresponding to the storage cylinder 111, and finally the through hole on the cutting disc 110 is engaged with the support rod 129 on the storage cylinder 111, that is, the cutting disc 110 is placed on the storage cylinder 111. If the cutting disc 110 is a damaged cutting disc 110, the cutting disc 110 is placed in the storage cylinder 111 for placing damaged cutting discs 110.

[0054] Then, the shift motor 120, the transposition motor 122, and the vacuum generator 124 are started, and the above steps are repeated to fix the required cutting disc 110 by the suction cup 125, and then the cutting disc 110 is moved to the side of the fixing component, and then the transposition motor 122 is started to drive the cutting disc 110 to rotate, so that the axis of the cutting disc 110 and the axis of the circular rotating plate 130 are in the same straight line, and then the shift motor 120 is started to drive the shift slide 121 to move, that is, the cutting disc 110 moves, so that The cutting disc 110 is engaged with the support rod 2 150 on the circular rotating plate 130, that is, the cutting disc 110 is placed on the support rod 2 150, and then the vacuum generator 124 is started to make the suction cup 125 release the fixation on the cutting disc 110, and then the shifting motor 122 is started to make the shifting rotating plate 123 return to the initial position, and the adjusting motor 117 is started to make the fixed slide 114 move downward, the trapezoidal block 136 is disengaged from the contact with the trapezoidal block 2 153, and the limiting ratchet 140 and the limiting ratchet 135 are re-engaged to form a ratchet mechanism.

[0055] Then, the fixed motor 132 is started to drive the L-shaped adjustment slide 134 to move in the direction away from the fixed motor 132, that is, the separation rotating plate 138 and the separation gear 139 are first rotated synchronously, and finally the separation rotating plate 138 is rotated to a vertical downward state. At this time, the T-shaped slide 143 and the arc block 154 are engaged, and the L-shaped adjustment slide 134 continues to move, and the separation slide 137, the separation rotating plate 138, and the separation gear 139 are synchronously moved in the direction close to the circular rotating plate 130, and finally the circular rotating plate 2 145 is engaged with the support rod 2 150, and the L-shaped adjustment slide 134 continues to move, and the separation gear 139 rotates relative to the separation rotating plate 138, and the L-shaped adjustment slide 134 and the T-shaped slide 143 move relative to the separation rotating plate 138, and the T-shaped slide 143 is released. In addition to limiting the position of the limit ratchet ring 147, the limit ratchet ring 147 and the limit ratchet 148 are re-engaged to form a ratchet mechanism, and then the cutting motor 144 is started to drive the separation screw 151 and the limit ratchet 148 to rotate, so that the circular rotating plate 2 145 and the spline shaft 152 move toward the direction close to the circular rotating plate 1 130, and finally the circular rotating plate 2 145 and the circular rotating plate 1 130 are fixed to the cutting disc 110, and the L-shaped adjustment slide 134 continues to move, and under the action of the square push rod 141 and the T-shaped slide 143, the L-shaped limit slide 131 disengages from the engagement with the groove on the circular rotating plate 1 130, that is, the restriction on the rotation of the circular rotating plate 130 is released, and under the action of the limit ratchet 140 and the limit ratchet 135, the moving direction of the L-shaped adjustment slide 134 is limited.

[0056] After the cutting discs 110 in the storage cylinder 111 are used up or the storage cylinder 111 for storing damaged cutting discs 110 is full, the auxiliary motor 127 is started to drive the auxiliary screw rod 128 to rotate, so that the auxiliary slide plate 116 moves toward the direction close to the bottom plate 101, and each storage cylinder 111 moves toward the direction close to the bottom plate 101, thereby facilitating the staff to replenish the cutting discs 110 in the storage cylinder 111 and take out the lost cutting discs 110.

[0057] The pipe to be cut is placed on the arc-shaped support plate 109, and then the positioning motor 106 is started to drive the double-headed threaded screw 107 to rotate. Under the action of the supporting slide 105 and the positioning slide 108, the four positioning long rods 104 are used to fix the pipe. Then the cutting motor 144 is started to drive the cutting disc 110 to rotate, and then the positioning motor 117 is started to drive the fixed slide 114 to move downward, so that the cutting disc 110 contacts the pipe to cut the pipe, and then the driving motor 113 is started to drive the corresponding positioning long rod 104 to rotate, so that the pipe rotates relative to the cutting disc 110, thereby realizing the circular cutting of the pipe.

[0058] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. A pipe cutting device for fire protection engineering, comprising a base plate (101), on which a support base plate (102) is fixedly mounted, characterized in that: A positioning assembly is provided on the bottom plate (101), the positioning assembly comprising four supporting slides (105), each of the supporting slides (105) being rotatably mounted with a positioning long rod (104), the four positioning long rods (104) being used to fix the pipe to be cut; A fixing assembly and an auxiliary assembly are provided on the support base plate (102), wherein the fixing assembly comprises a fixing slide (114), a separation slide (137) is slidably mounted on the fixing slide (114), a separation rotating plate (138) is rotatably mounted on the separation slide (137), a circular rotating seat (146) is rotatably mounted on the separation rotating plate (138), a spline shaft (152) is slidably mounted on the circular rotating seat (146), and a second circular rotating plate (145) is fixedly mounted on the spline shaft (152). A circular rotating plate 1 (130) is rotatably mounted on the fixed slide (114), a cutting disc (110) is movably arranged on the circular rotating plate 1 (130), the circular rotating plate 1 (130) and the circular rotating plate 2 (145) are used to fix the cutting disc (110), the auxiliary component comprises a plurality of storage cylinders (111), the storage cylinders (111) are used to store the cutting discs (110), and the auxiliary component further comprises a replacement unit, the replacement unit is used to replace the cutting disc (110); The fixed slide (114) is slidably mounted on the support base plate (102), a positioning screw (118) is rotatably mounted on the fixed slide (114), the positioning screw (118) and the support base plate (102) form a spiral pair, spring sheets are symmetrically fixedly arranged between the separation slide (137) and the fixed slide (114), a torsion spring 1 is arranged between the separation rotating plate (138) and the separation slide (137), the elastic force of the torsion spring 1 is always smaller than the sum of the elastic forces of the two spring sheets between the fixed slide (114) and the separation slide (137), a separation gear (139) is rotatably mounted on the side of the separation rotating plate (138), and a torsion spring 2 is arranged between the separation rotating plate (138) and the separation gear (139); The circular rotating plate 1 (130) is fixedly provided with 6 support rods 2 (150) in a circular array, the cutting disc (110) is provided with 6 through holes that cooperate with the support rods 2 (150), the through holes on the cutting disc (110) and the support rods 2 (150) are movably connected, and the circular rotating plate 2 (145) and the support rods 2 (150) on the circular rotating plate 1 (130) are slidably matched; The circular rotating seat (146) and the spline shaft (152) form a spline sliding fit, a limit ratchet (148) is rotatably mounted on the separation rotating plate (138), a separation screw rod (151) is fixedly arranged on the side of the limit ratchet (148), the separation screw rod (151) and the circular rotating seat (146) form a spiral pair, a limit ratchet ring (147) is slidably mounted on the side of the circular rotating seat (146), and the limit ratchet ring (147) and the limit ratchet (148) are engaged to form a ratchet mechanism; An L-shaped limiting slide plate (131) is slidably mounted on the side of the fixed slide frame (114); a groove cooperating with the L-shaped limiting slide plate (131) is provided on the side of the circular rotating plate (130); the L-shaped limiting slide plate (131) is used to limit the rotation of the circular rotating plate (130); a T-shaped slide plate (143) is slidably mounted on the separating rotating plate (138); a square push rod (141) is fixedly mounted on the side of the L-shaped limiting slide plate (131); the T-shaped slide plate (143) is used to push the limiting ratchet ring (147) and the square push rod (141) to move; The fixed slide (114) is also slidably mounted with an L-shaped position adjustment slide (134) and a position limiting ratchet (140). When the L-shaped position adjustment slide (134) and the T-shaped slide (143) are engaged, the two are movably connected. A fixed screw rod (133) is rotatably mounted on the fixed slide (114). The fixed screw rod (133) and the L-shaped position adjustment slide (134) form a spiral pair. A plurality of position limiting ratchets (135) and a plurality of separation teeth (140) are fixedly arranged on the side of the L-shaped position adjustment slide (134). 2) When the limiting ratchet (135) on the L-shaped positioning slide (134) and the limiting ratchet (140) are engaged, a ratchet mechanism is formed; when the separation gear (139) and the separation tooth (142) on the L-shaped positioning slide (134) are engaged, a gear rack pair is formed; a trapezoidal block 1 (136) is fixedly provided on the limiting ratchet (140); a trapezoidal block 2 (153) is fixedly provided on the side of the support seat plate (102); the trapezoidal block 2 (153) is used to push the trapezoidal block 1 (136) to move; An auxiliary slide plate (116) is also slidably mounted on the support base plate (102), and a plurality of storage cylinders (111) are evenly fixedly mounted on the auxiliary slide plate (116). Six support rods (129) are fixedly arranged in a circular array on the inner side of the storage cylinders (111). When the through holes on the cutting discs (110) are engaged with the corresponding support rods (129), they are slidably matched. A cover circular plate (112) is rotatably mounted on the storage cylinders (111), and the cover circular plate (112) is used to cover the storage cylinders (111); The replacement unit comprises a shifting slide plate (121) slidably mounted on a supporting seat plate (102); a shifting rotating plate (123) is rotatably mounted on the shifting slide plate (121); an arc-shaped friction strip plate (126) and two suction cups (125) are fixedly mounted on the shifting rotating plate (123); a vacuum generator (124) is also fixedly mounted on the shifting rotating plate (123); the suction cups (125) are connected to the vacuum generator (124); friction round rods (115) are fixedly mounted on the side surfaces of the covering circular plate (112); and friction force exists between the arc-shaped friction strip plate (126) and the friction round rod (115) when the two are in contact.

2. A pipe cutting device for fire protection engineering according to claim 1, characterized in that: Support base frames (103) are symmetrically fixedly arranged on both sides of the base plate (101), and the two ends of the support slide (105) are slidably matched with the corresponding support base frames (103). Four positioning long rods (104) are distributed in a circular array on the base plate (101). Positioning slides (108) are symmetrically slidably installed on the base plate (101), and the positioning slides (108) are movably connected to the two corresponding support slides (105). A double-headed threaded screw (107) is rotatably installed on the base plate (101), and the threads at both ends of the double-headed threaded screw (107) respectively form a spiral pair with the corresponding positioning slides (108).

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