Thermal insulation pipe positioning and cutting equipment

Abstract

The thermal insulation pipe positioning and cutting equipment comprises a supporting platform, an avoiding groove is formed in the supporting platform, a moving platform is arranged at the bottom of the supporting platform, a positioning assembly, a cutting tool, an opening structure and a grinding tool are arranged on the moving platform, the opening structure comprises a base frame, and two crank structures connected with a rotating shaft are arranged on the base frame; the movable ends of the two crank structures are connected with a switching structure and a pushing structure correspondingly, and the pushing structure is arranged close to the cutting tool. The opening structure is rotationally connected with the cutting tool or / and the grinding tool through the rotating shaft, so that when the cutting tool or the grinding tool is lifted upwards to be separated from the heat preservation pipe, the rotating shaft rotates to drive the switching structure to stretch out to be connected with the heat preservation pipe, and meanwhile, the pushing structure pushes the switching structure to transversely move so as to drive the heat preservation pipe to move backwards to form a grinding gap; and automatic opening operation is achieved, and the problems of low efficiency and the like caused by manual moving of the heat preservation pipe are solved.

Description

Technical Field

[0001] The invention relates to the technical field of thermal insulation pipe processing equipment, and in particular to a thermal insulation pipe positioning and cutting equipment. Background Art

[0002] Insulation pipes are mainly used for the transportation of liquids, gases and other media, and are mainly used for thermal insulation of pipelines in the fields of petroleum, chemical industry, aerospace, military, central heating, central air conditioning, municipal engineering, etc. When insulation pipes are cut and used according to different needs, the cut end faces are usually polished, especially for plastic-lined pipes with insulation plastic inside. After cutting, burrs and flash will form at the cross-section cut, which can easily affect the interface quality and even the medium transportation quality.

[0003] Traditionally, two operators perform pipe cutting and grinding work at different stations. To further improve work efficiency, the prior art connects a cutting tool and a grinding tool to form an integral structure, so that cutting and grinding work can be performed simultaneously.

[0004] However, since the thickness of the grinding tool is usually greater than that of the cutting tool, during the sequential cutting process, it is often necessary to move the cut insulation pipe backward to expand the incision gap between it and the front integral insulation pipe to facilitate the insertion of the grinding tool for grinding.

[0005] However, current cutting tools usually lack equipment to automatically expand the grinding gap, and still need to manually push the insulation tube to expand the gap. This method is inefficient, and generally the grinding gap does not require a large spacing. Manual pushing can easily make the gap control inaccurate and pose a safety hazard. Summary of the invention

[0006] The object of the present invention is to provide an insulation pipe positioning and cutting device to solve the technical problems in the prior art of low efficiency and unstable gap control caused by manually enlarging the grinding gap.

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

[0008] A thermal insulation pipe positioning and cutting device, comprising a support platform, a plurality of anti-friction balls are arranged on the bearing surface of the support platform, a plurality of avoidance grooves are equidistantly provided on the support platform along its length direction, and the feature is that a mobile platform is slidably arranged at the bottom of the support platform, a positioning component is arranged on the mobile platform and is positioned and clamped with the support platform, and a cutting tool, an opening structure and a grinding tool are sequentially arranged on the mobile platform along the length direction of the support platform;

[0009] Wherein, the distance between the adjacent working surfaces of the cutting tool and the grinding tool is equal to the distance between two adjacent avoidance grooves, and the opening structure is coaxially rotatably mounted on the mobile platform with the cutting tool and / or the grinding tool;

[0010] The opening structure comprises a base frame, on which two sets of crank structures connected to the rotating shaft are arranged, and the movable ends of the two sets of crank structures are respectively connected to a transfer structure and a pushing structure, and the pushing structure is arranged close to the cutting tool;

[0011] Specifically, the transfer structure and the pushing structure move synchronously under the rotation drive of the rotating shaft, and after the transfer structure is connected to the insulation pipe, the pushing structure pushes the transfer structure to move linearly to drive the insulation pipe to slide and form a grinding gap.

[0012] As a preferred solution of the present invention, the adapter structure includes a first sliding groove opened on the base frame, a first slider is slidably arranged in the first sliding groove, the bottom of the first slider is connected to the crank structure, an optical axis is fixedly arranged in the first slider, an adapter is slidably arranged on the optical axis, a reset spring is connected to the side of the adapter away from the pushing structure, and the reset spring is sleeved on the outside of the optical axis.

[0013] As a preferred solution of the present invention, the adapter structure includes a second slide groove opened on the base frame, an extrusion piece is arranged at the opening of the second slide groove, an extrusion gap exists between one end of the extrusion piece and the groove wall of the second slide groove, and the other end of the extrusion piece passes through the other groove wall of the second slide groove and is arranged toward the adapter;

[0014] A second slider is slidably arranged in the second slide groove, the bottom of the second slider is connected to the crank structure, and a slope block is also arranged at the bottom of the second slider. The width of the slope block gradually increases from one end facing the opening of the second slide groove to the other end, and the small head end of the slope block is arranged toward the extrusion gap.

[0015] As a preferred solution of the present invention, the adapter includes a sliding rod slidably connected to the optical axis and an abutment rod connected to the insulation tube, a connecting groove is provided at the end of the sliding rod, a preload spring is arranged in the connecting groove, and the end of the abutment rod is slidably embedded in the connecting groove and connected to the preload spring.

[0016] As a preferred solution of the present invention, a magnetic attraction piece is fixedly provided on one side of the abutment rod connected to the thermal insulation pipe.

[0017] As a preferred solution of the present invention, the opening structure is provided with two sets, and the two sets of the opening structure are respectively rotatably arranged at two sides of the support platform through the rotating shaft, and the ends of the abutting rods of the two sets of the opening structure are arranged corresponding to each other;

[0018] The rotating shafts of the two sets of the opening structures are connected via a transmission structure, and the transmission structure is arranged inside the mobile platform. The transmission structure includes a vertical transmission rod meshingly connected to the two rotating shafts and a transverse transmission rod connecting the two vertical transmission rods.

[0019] As a preferred solution of the present invention, the cutting tool and the grinding tool are respectively arranged on both sides of the supporting platform, and the cutting tool and the grinding tool are connected by a linkage structure to form an overall structure that rotates synchronously. The cutting tool and the grinding tool are respectively connected with two sets of the opening structures through the rotating shaft, and the two sets of the opening structures are respectively arranged on both sides of the supporting platform, and the ends of the abutting rods of the two sets of the opening structures are arranged corresponding to each other.

[0020] As a preferred solution of the present invention, the linkage structure includes a connecting rod, and straight groove members arranged in a horizontal state are fixedly installed at both ends of the connecting rod, and the two straight groove members are respectively arranged on the outside of the cutting tool and the grinding tool, and the openings of the two straight groove members are arranged opposite to each other;

[0021] A first connecting roller is slidably disposed inside one side of the opening of the two straight groove members, and the other ends of the two first connecting rollers are fixedly connected to the cutting tool and the grinding tool respectively;

[0022] The closed side of the straight groove member is slidably connected to the limit bracket via a second connecting roller. The limit bracket is fixedly mounted on the moving platform. The connecting rod slides vertically longitudinally in the limit bracket via the second connecting roller.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention utilizes a rotating shaft to rotatably connect the opening structure with the cutting tool or / and the grinding tool, so that when the cutting tool or the grinding tool is lifted up and separated from the insulation pipe, the rotation of the rotating shaft can drive the adapter structure to extend and connect with the insulation pipe, and at the same time, the pushing structure pushes the adapter structure to move horizontally, thereby driving the insulation pipe to move backward to form a grinding gap, realizing the automatic opening operation, and avoiding the problems of low efficiency caused by manual movement of the insulation pipe. In addition, in the present device, the pushing structure pushes the adapter to move by squeezing and expanding the inclined plane blocks with different widths at both ends, and its maximum expansion distance can match the short-distance movement of the pipeline, so that the driving method is more stable and the gap control is more accurate, which is especially suitable for the micro-distance movement of large pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention, specifically embodiment 1;

[0027] Figure 2 This is one of the overall structural schematic diagrams of the mobile platform of the present invention;

[0028] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0029] Figure 4 The second schematic diagram of the overall structure of the mobile platform of the present invention;

[0030] Figure 5 For the present invention Figure 4 The enlarged view of point B in the middle;

[0031] Figure 6 It is a schematic diagram of the side cutaway structure of the open mouth interface of the present invention;

[0032] Figure 7 It is a schematic diagram of the overall structure of the present invention, specifically Embodiment 2;

[0033] Figure 8 It is a schematic diagram of the overall structure of the present invention, specifically embodiment 3;

[0034] Fig. 9 It is a schematic diagram of the overall structure of the present invention, specifically embodiment 4.

[0035] The numbers in the figure represent the following:

[0036] 1. Support platform; 2. Positioning slot block; 3. Avoidance slot; 4. Moving platform; 5. Positioning assembly; 6. Cutting tool; 7. Opening structure; 8. Grinding tool; 9. Base frame; 10. Crank structure; 11. Adapter structure; 12. Pushing structure; 13. Rotating shaft; 14. First slide slot; 15. First slider; 16. Optical axis; 17. Adapter; 18. Reset spring; 19. Second slide slot; 20. Extrusion piece; 21. Second slider; 22. Inclined block; 23. Sliding rod; 24. Abutment rod; 25, connecting groove; 26, preload spring; 27, magnetic element; 28, transmission structure; 29, vertical transmission rod; 30, horizontal transmission rod; 31, linkage structure; 32, movable pin block; 33, convex ridge block; 34, connecting rod; 35, straight groove member; 36, first connecting roller; 37, second connecting roller; 38, limit bracket; 39, redirecting block; 40, straight column; 41, arc pressure plate; 42, upper limit plate; 43, lower limit plate; 44, elastic member; 45, connecting column. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figures 1 to 9 As shown, the present invention provides an insulated pipe positioning and cutting device, including a support platform 1, which can be fixedly installed on a ground foundation through an installation bracket, the installation bracket includes a fixed end and a movable end, the bottom of the fixed end can be inserted into the ground foundation through an anchor pile, the top is fixedly clamped by a locking clamp, and the movable end slides to support the insulation pipe.

[0039] The movable end plays a supporting role, and the end of the insulation pipe is slidably placed on this end. A plurality of friction-reducing balls (not shown in the figure) are arranged on the bearing surface of the support platform 1, and the insulation pipe is placed on the friction-reducing balls to facilitate sliding during the opening operation.

[0040] The support platform 1 is provided with a plurality of avoidance grooves 3 equidistantly along its length direction for avoiding cutting and sharpening knives. A movable platform 4 is slidably arranged at the bottom of the support platform 1. The movable platform 4 can be slidably arranged on the bottom surface of the support platform 1 through a slide rail structure, or can be slidably arranged under the support platform 1 through rollers.

[0041] The mobile platform 4 is provided with a positioning assembly 5 that is positioned and snapped with the support platform 1. The positioning assembly 5 includes a positioning slot block 2 fixedly installed below the avoidance slot 3 and a movable pin block 32 installed on the mobile platform 4. There are many implementation methods of the positioning assembly 5 in the prior art. For example, the movable pin block 32 is connected to a pop-up switch, and a visual sensor is used to monitor the position of the fixed positioning slot block 2. When the movable pin block 32 moves to the position along with the mobile platform 4, the movable pin block pops out and snaps into the positioning slot block 2. Alternatively, the movable pin block 32 is slidably set on the mobile platform 4, and the moving position of the movable pin block is observed by naked eyes. After the position matches, the movable pin block is manually moved to complete the connection between the two. As another embodiment, the movable pin block 32 can be longitudinally retractably installed on the convex block 33 of the mobile platform 4 and set directly below the positioning slot block 2. When the mobile platform 4 moves, the movable pin block 32 telescopically set on the convex block 33 will be retracted and inserted into the positioning slot block 2, and can be squeezed and dropped by the positioning slot block 2 and fall out of the positioning slot block 2 when the mobile platform 4 moves again, so that it is more convenient to use.

[0042] A cutting tool 6 , an opening structure 7 and a grinding tool 8 are sequentially arranged on the mobile platform 4 along the length direction of the supporting platform 1 .

[0043] Among them, the spacing between the adjacent working surfaces of the cutting tool 6 and the grinding tool 8 is equal to the spacing between two adjacent avoidance grooves 3, and the opening structure 7 is coaxially rotatably mounted on the mobile platform 4 with the cutting tool 6 or / and the grinding tool 8. That is, the opening structure 7 is coaxially rotatably mounted on the mobile platform 4 with the cutting tool 6, or the opening structure 7 is coaxially rotatably mounted on the mobile platform 4 with the grinding tool 8, or the opening structure 7 is coaxially rotatably mounted on the mobile platform 4 with the cutting tool 6 and the grinding tool 8. Among them, the cutting tool 6 and the grinding tool 8 are both existing equipment with independent power supplies. The cutting tool 6 and the grinding tool 8 can select existing equipment with saw blade-type working parts. The cutting tool 6 and the grinding tool 8 can be connected to form an integral structure through a connecting rod to rotate synchronously.

[0044] The opening structure 7 includes a base frame 9 on which two sets of crank structures 10 connected to a rotating shaft 13 are arranged. The movable ends of the two sets of crank structures 10 are respectively connected to a transfer structure 11 and a pushing structure 12 , and the pushing structure 12 is arranged close to the cutting tool 6 .

[0045] The transfer structure 11 and the pushing structure 12 move synchronously under the rotation drive of the rotating shaft 13, and after the transfer structure 11 is connected to the insulation pipe, the pushing structure 12 pushes the transfer structure 11 to move linearly to drive the insulation pipe to slide and form a grinding gap.

[0046] The adapter structure 11 includes a first slide groove 14 opened on the base frame 9, a first slider 15 is slidably arranged in the first slide groove 14, the bottom of the first slider 15 is connected to the crank structure 10, an optical axis 16 is fixedly arranged in the first slider 15, an adapter 17 is slidably arranged on the optical axis 16, a reset spring 18 is connected to the side of the adapter 17 away from the pushing structure 12, and the reset spring 18 is sleeved on the outside of the optical axis 16.

[0047] The adapter structure 11 includes a second slide groove 19 opened on the base frame 9, and an extrusion piece 20 is arranged at the opening of the second slide groove 19. There is an extrusion gap between one end of the extrusion piece 20 and the groove wall of the second slide groove 19, and the other end passes through the other groove wall of the second slide groove 19 and is arranged toward the adapter 17.

[0048] A second slider 21 is slidably arranged in the second slide groove 19, and the bottom of the second slider 21 is connected to the crank structure 10. A ramp block 22 is also arranged at the bottom of the second slider 21. The width of the ramp block 22 gradually increases from one end facing the opening of the second slide groove 19 to the other end, and the small head end of the ramp block 22 is arranged toward the extrusion gap.

[0049] The adapter 17 includes a sliding rod 23 slidably connected to the optical axis 16 and an abutment rod 24 connected to the insulation pipe. A connecting groove 25 is provided at the end of the sliding rod 23, and a preload spring 26 is arranged in the connecting groove 25. The end of the abutment rod 24 is slidably embedded in the connecting groove 25 and connected to the preload spring 26.

[0050] Specifically, the working principle of this device is:

[0051] When the mobile platform 4 moves along the supporting platform 1, after the positioning assembly 5 matches and clamps the mobile platform 4 with the supporting platform 1, since the distance between the working surface of the cutting tool 6 and the working surface of the grinding tool 8 is equal to the distance between adjacent avoidance grooves 3, the cutting tool 6 and the grinding tool 8 are both positioned at the position of the avoidance groove 3 at this time.

[0052] Afterwards, the cutting tool 6 and the grinding tool 8 are pressed down to cut and grind the insulation pipe (in the initial cutting process at both ends, the grinding tool 8 is located outside the length range of the insulation pipe and runs idle). Figure 1 As shown, at this time, the cutting tool 6 and the grinding tool 8 drive the rotating shaft 13 to rotate counterclockwise, and the rotating shaft 13 drives the first slider 15 and the second slider 15 to move in the direction of the rotating shaft 13 through the crank structure 10, thereby driving the adapter 17 and the ramp block 22 at its end away from the insulation pipe.

[0053] When the cutting and grinding work is completed, the cutting tool 6 and the grinding tool 8 are lifted up, which drives the rotating shaft 13 to rotate clockwise. At this time, the rotating shaft 13 pushes the first slider 15 and the second slider 21 to move toward the support platform 1 through the crank structure 10, thereby driving the adapter 17 at the end of the first slider 15 to connect with the insulation pipe. At the same time, in the second slide groove 19, the crank structure 10 drives the second slider 21 to slide (wherein, the setting position of the end of the second slider 21 is farther away from the avoidance groove 3 than the setting position of the end of the first slider 15, so that the inclined surface block 22 pushes the extrusion member 20 only when the adapter 17 abuts against the insulation pipe), and drives the inclined surface block 22 at the end of the second slider 21 to move toward the extrusion member 20. This inclined surface block 22 is arranged in a trapezoidal shape, and the small head end of the trapezoid is arranged toward the extrusion gap. As the inclined surface block 22 is continuously inserted into the extrusion gap, the inclined surface block 22 gradually pushes the extrusion member 20 to move, thereby compressing the adapter 17 located in the first slide groove 14 and pushing the reset spring 18 to the other side, thereby driving the insulation pipe to move, thereby forming a grinding gap, and when the rotating shaft 13 rotates counterclockwise, the inclined surface block 22 retracts, and the reset spring 18 extends, thereby driving the opening structure 7 to reset, so as to facilitate the next work.

[0054] Among them, there are many implementation methods in the prior art for connecting the adapter block with the insulation pipe to form an integral structure so as to be movable. In actual use, one of the following three embodiments may be preferred.

[0055] Embodiment 1, as Figure 2 and Figure 3 As shown, a magnetic member 27 is fixedly arranged on one side of the abutment rod 24 connected to the insulation pipe, and the end face of the abutment rod 24 is connected to the outer wall of the insulation steel pipe through the magnetic member 27, thereby connecting with the insulation pipe to form an integral structure. When the inclined block 22 pushes the adapter 17, the insulation pipe can be driven to move synchronously.

[0056] Embodiment 2, as Figure 7 As shown, two sets of opening structures 7 are provided, and the two sets of opening structures 7 are rotatably arranged on both sides of the support platform 1 through the rotating shaft 13, and the ends of the abutting rods 24 of the two sets of opening structures 7 are arranged corresponding to each other.

[0057] The rotating shafts 13 of the two sets of opening structures 7 are connected through a transmission structure 28 . The transmission structure 28 is arranged inside the mobile platform 4 . The transmission structure 28 includes a vertical transmission rod 29 meshingly connected to the two rotating shafts 13 and a horizontal transmission rod 30 connecting the two vertical transmission rods 29 .

[0058] like Figure 7As shown, in actual use, redirecting gears are set at the ends of the rotating shafts 13 on both sides, and the vertical transmission rods 29 are connected through the redirecting gears. The vertical transmission rods 29 located on both sides of the support platform 1 are connected to the same horizontal transmission rod 30 through another set of redirecting gears. Therefore, when the cutting tool 6 and the grinding tool 8 on one side rotate to drive the rotating shaft 13 on this side to rotate, the circular motion can be transmitted to the rotating shaft 13 on the other side, so that the opening structure 7 on this side can be extended synchronously, and the two sets of opening structures 7 on both sides clamp the insulation pipe in a clamping manner, and then the pushing structures 12 on both sides push and slide to form a grinding gap.

[0059] Embodiment three, as Figure 8 As shown, the cutting tool 6 and the grinding tool 8 are respectively arranged on both sides of the supporting platform 1, and the cutting tool 6 and the grinding tool 8 are connected by a linkage structure 31 to form an overall structure that rotates synchronously. The cutting tool 6 and the grinding tool 8 are respectively connected with two sets of opening structures 7 through a rotating shaft 13, and the two sets of opening structures 7 are respectively arranged on both sides of the supporting platform 1, and the ends of the abutting rods 24 of the two sets of opening structures 7 are arranged corresponding to each other.

[0060] The linkage structure 31 includes a connecting rod 34 , and straight groove members 35 arranged in a horizontal state are fixedly installed at both ends of the connecting rod 34 . The two straight groove members 35 are respectively arranged on the outside of the cutting tool 6 and the grinding tool 8 , and the openings of the two straight groove members 35 are arranged opposite to each other.

[0061] A first connecting roller 36 is slidably arranged inside one side of the opening of the two straight groove members 35, and the other ends of the two first connecting rollers 36 are fixedly connected to the cutting tool 6 and the grinding tool 8 respectively. The closed side of the straight groove member 35 is slidably connected to the limit bracket 38 through the second connecting roller 37. The limit bracket 38 is fixedly installed on the mobile platform 4, and the connecting rod 34 slides the cutting tool 6 and the grinding tool 8 longitudinally and vertically in the limit bracket 38 through the second connecting roller 37.

[0062] In the third embodiment, the cutting tool 6 and the grinding tool 8 are connected to the connecting rod 34 through the first connecting roller 36, so that the connecting rod 34 can synchronously drive the cutting tool 6 and the grinding tool 8 to rise and fall synchronously, which not only makes the synchronization of cutting and grinding work higher and the work quality more stable, but also makes the synchronization of the two sets of opening structures 7 on both sides higher. The two adapters 17 on both sides of the insulation pipe can be synchronously abutted and clamped on both sides of the insulation pipe, and after being tightened by the pre-tightening spring 26, the two sets of pushing structures 12 can also be synchronously extended under the drive of the connecting rod 34, so that the clamping and expansion effects of the two sets of opening structures 7 on both sides are more uniform.

[0063] Furthermore, the connecting rod 34 is slidably arranged in the limiting bracket 38 through the second connecting roller 37, so that the linear motion stability of the vertical lifting of the connecting rod 34 is higher. Moreover, in actual production, two sets of limiting clamps (not shown in the figure) with different heights and different functions can also be set at the upper position of the limiting bracket 38. When the connecting rod 34 rises to the first set of limiting clamps, the operator can clearly understand that the pushing structure 12 has been pushed and the expansion work has been completed. When it rises to the second set of limiting clamps again, the position of the connecting rod 34 is fixed, so that the overall structure can be moved more conveniently. Thereby, the practicality and portability of the device can be improved.

[0064] In the above three embodiments, the insulation pipe is connected to the support platform 1 through the friction-reducing ball bearing to improve the sliding efficiency of the insulation pipe when sliding, and the end of the adapter 17 can be provided with a convex thorn for increasing friction to increase the friction between it and the insulation pipe to improve the sliding efficiency of the insulation pipe when sliding. In addition, a cylinder and other components can be added to control the rotation position of the cutting tool 6 and the grinding tool 8.

[0065] Furthermore, when the device is working, the insulation pipe can be pressed by an external pressing device, thereby improving the cutting and grinding efficiency and quality. Specifically, there are many forms of pressing devices in the prior art, which will not be described in detail here. In the device, as a preferred embodiment, the following can be selected: Fig. 9 The pressing structure shown can follow the synchronous movement of the cutting tool 6 and the grinding tool 8 to automatically press vertically.

[0066] Specifically, the fixed pressing structure includes a redirecting block 39 and a straight column 40. One side of the redirecting block 39 is fixedly connected to the cutting tool 6 and the grinding tool 8, and the other side is provided with a slide groove opening outward. The straight column 40 and the slide groove are respectively arranged in vertical and horizontal postures when the working surfaces of the cutting tool 6 and the grinding tool 8 contact the insulation pipe.

[0067] An arc-shaped pressure plate 41 is provided at the bottom end of the straight column 40, an upper limit plate 42 and a lower limit plate 43 are provided on the straight column 40 at intervals, an elastic member 44 is provided between the upper limit plate 42 and the lower limit plate 43, the elastic member 44 is provided on the peripheral side of the straight column 40, and the bottom end of the elastic member 44 is connected to the lower limit plate 43, and the top end is connected to a connecting column 45, one end of the connecting column 45 is slidably sleeved on the outside of the straight column 40 and connected to the elastic member 44, and the other end is slidably provided in the slide groove.

[0068] By setting the redirecting block 39, the circular motion of the cutting tool 6 and the grinding tool 8 during falling cutting can be changed into a vertical linear motion acting on the straight column 40. By utilizing the structural setting of the elastic member 44, the pressure of the straight column 40 on the insulation pipe increases continuously with the deepening of the cutting and grinding depth, thereby improving the stability of the pipe fixation.

[0069] like Fig. 9The pressing device shown can be applied in the first and second embodiments. For the third embodiment, due to the existence of the linkage structure 31, in actual use, the pressing structure can be set below the straight groove member 35 by setting a mounting member (not shown in the figure) so that there is no interference in use. Alternatively, a set of pressing devices is set between the cutting structure 6 and the grinding structure 8 to press the insulation pipe. This embodiment is set according to the specific actual application situation.

[0070] In addition, when the connecting column 45 applies pressure to the straight column 40 through the elastic member 44, the straight column 40 can be manually straightened to ensure that the pressure is applied to the insulation pipe in the vertical direction. Alternatively, a limit hole (not shown in the figure) is opened at the top of the straight column 40, and then a limit pin (not shown in the figure) is folded and set on the mobile platform 4. The limit pin is used to insert into the limit hole when the straight column 40 is in a vertical posture. When the straight column 40 is vertically set on the insulation pipe, the limit pin on the mobile platform 4 is folded and inserted into the limit hole of the straight column 40, thereby limiting it and ensuring that the pressure is applied vertically to the insulation pipe. The limit pin can be set on the platform wall on the other side of the mobile platform 4 away from the rotating shaft 13 through a connecting bracket and a hinge (not shown in the figure).

[0071] In addition, the connecting column 45 is slidably connected in the redirection block 39. When the cutting tool 6 and the grinding tool 8 are lifted and dropped again, the connecting column 45 may slide in the redirection block 39, so that when the cutting tool 6 and the grinding tool 8 contact the insulation pipe, the straight column 40 is not in a vertical state to contact the insulation pipe. At this time, as an embodiment, manual straightening can be performed manually so that when the cutting tool 6 and the grinding tool 8 contact the insulation pipe, the straight column 40 is vertically pressed on the insulation pipe.

[0072] The present device provides another more preferred embodiment, in which a movable connection assembly (not shown in the figure) is arranged in the slide groove, and the movable connection assembly is connected to the end of the connecting column 45 when the straight column 40 is perpendicular to the insulation pipe.

[0073] Among them, the connecting column 45 is disconnected from the movable connection component to slide in the slide groove when the cutting tool 6 and the grinding tool 8 are pressed down, and the connecting column 45 is connected to the movable connection component to be fixed in the slide groove when the cutting tool 6 and the grinding tool 8 are lifted up and separated from the insulation pipe.

[0074] Among them, there are many forms of movable connection components in the prior art. For example, as an embodiment, the movable connection component can be a magnetic block. A magnetic block is set on the top wall of the slide groove of the redirection block 39, and a magnetic block matched and connected thereto is set at the end of the connecting column 45. These two interconnected magnetic blocks can be disconnected due to the applied pressure when the cutting tool 6 and the grinding tool 8 fall, so that the connecting column 45 slides in the slide groove and applies pressure to the straight column 40. And the magnetic attraction force of the two interconnected magnetic blocks can satisfy that when the cutting tool 6 is lifted, the connecting column 45 is adsorbed and fixed in the slide groove without sliding, so that when the cutting tool 6 falls again next time, the straight column 40 is still pressed on the insulation pipe in a vertical posture.

[0075] Alternatively, as another embodiment, the movable connection component can be a lock bead structure (similar to the clamping structure on the umbrella rib). The lock bead structure includes a positioning hole, which is provided on the upper top wall of the slide, a micro spring is provided in the positioning hole, a lock bead is provided at the end of the micro spring, the lock bead is limitedly installed in the positioning hole, and the top of the lock bead protrudes from the positioning hole and is located in the slide. The end of the connecting column 45 is installed in the slide through a limiting slider, and the limiting slider is provided with an arc groove that is movably clamped with the lock bead. When the straight column 40 is vertically pressed on the insulation pipe, the arc groove is clamped and fixed with the lock bead. When the cutting tool 6 is lifted, the clamping of the lock bead and the arc groove can maintain the connection column 45 fixed in the slide without sliding. When the cutting tool 6 falls to work, the arc groove squeezes the lock bead due to pressure, so that the lock bead retracts into the positioning hole, so that the connecting column 45 can slide in the slide, applying pressure to the straight column 40.

[0076] By setting up a fixed pressing structure, it can be simultaneously set on the insulation pipe and automatically press it when the cutting tool 6 and the grinding tool 8 move down to work, and the pressing force increases continuously according to the working progress of the cutting tool 6 and the grinding tool 8, thereby more stably fixing the insulation pipe during the cutting process, while improving work efficiency, it also reduces the possibility of vibration of the insulation pipe during the cutting process, thereby improving the work quality of the cutting operation and the grinding operation.

[0077] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A thermal insulation pipe positioning and cutting device, comprising a support platform (1), a plurality of anti-friction balls being arranged on the bearing surface of the support platform (1), a plurality of avoidance grooves (3) being equidistantly provided along the length direction of the support platform (1), characterized in that: A mobile platform (4) is slidably provided at the bottom of the support platform (1); a positioning assembly (5) is provided on the mobile platform (4) and is positioned and clamped with the support platform (1); and a cutting tool (6), an opening structure (7) and a grinding tool (8) are sequentially provided on the mobile platform (4) along the length direction of the support platform (1); The spacing between adjacent working surfaces of the cutting tool (6) and the grinding tool (8) is equal to the spacing between two adjacent avoidance grooves (3), and the opening structure (7) is coaxially rotatably mounted on the moving platform (4) with the cutting tool (6) or / and the grinding tool (8); The opening structure (7) comprises a base frame (9), on which two sets of crank structures (10) connected to the rotating shaft (13) are arranged, and the movable ends of the two sets of crank structures (10) are respectively connected to a switching structure (11) and a pushing structure (12), and the pushing structure (12) is arranged close to the cutting tool (6); Specifically, the transfer structure (11) and the pushing structure (12) move synchronously under the rotation drive of the rotating shaft (13), and after the transfer structure (11) is connected to the insulation pipe, the pushing structure (12) pushes the transfer structure (11) to move linearly to drive the insulation pipe to slide and form a grinding gap.

2. The thermal insulation pipe positioning and cutting device according to claim 1, characterized in that: The adapter structure (11) comprises a first slide groove (14) provided on the base frame (9), a first slider (15) being slidably arranged in the first slide groove (14), the bottom of the first slider (15) being connected to the crank structure (10), an optical axis (16) being fixedly arranged in the first slider (15), an adapter (17) being slidably arranged on the optical axis (16), a return spring (18) being connected to a side of the adapter (17) away from the pushing structure (12), and the return spring (18) being sleeved on the outside of the optical axis (16).

3. The thermal insulation pipe positioning and cutting device according to claim 2, characterized in that: The transfer structure (11) comprises a second slide groove (19) provided on the base frame (9), an extrusion piece (20) being provided at the opening of the second slide groove (19), an extrusion gap being present between one end of the extrusion piece (20) and the groove wall of the second slide groove (19), and the other end of the extrusion piece (20) passing through the other groove wall of the second slide groove (19) and being provided toward the transfer piece (17); A second slider (21) is slidably arranged in the second slide groove (19), the bottom of the second slider (21) is connected to the crank structure (10), and a slope block (22) is also arranged at the bottom of the second slider (21), the width of the slope block (22) gradually increases from one end facing the opening of the second slide groove (19) to the other end, and the small head end of the slope block (22) is arranged towards the extrusion gap.

4. The thermal insulation pipe positioning and cutting device according to claim 3 is characterized in that: The adapter (17) comprises a sliding rod (23) slidably connected to the optical axis (16) and an abutting rod (24) connected to the thermal insulation pipe, a connecting groove (25) is provided at the end of the sliding rod (23), a preload spring (26) is arranged in the connecting groove (25), and an end of the abutting rod (24) is slidably engaged in the connecting groove (25) and connected to the preload spring (26).

5. The thermal insulation pipe positioning and cutting device according to claim 4, characterized in that: A magnetic attraction piece (27) is fixedly arranged on one side of the abutment rod (24) connected to the thermal insulation pipe.

6. The thermal insulation pipe positioning and cutting device according to claim 4, characterized in that: The opening structure (7) is provided with two sets, and the two sets of the opening structure (7) are respectively rotatably arranged at two sides of the support platform (1) through the rotating shaft (13), and the ends of the abutment rods (24) of the two sets of the opening structure (7) are arranged corresponding to each other; The rotating shafts (13) of the two sets of the opening structures (7) are connected via a transmission structure (28), and the transmission structure (28) is arranged inside the mobile platform (4). The transmission structure (28) comprises a vertical transmission rod (29) meshingly connected to the two rotating shafts (13) and a transverse transmission rod (30) connecting the two vertical transmission rods (29).

7. The thermal insulation pipe positioning and cutting device according to claim 4, characterized in that: The cutting tool (6) and the grinding tool (8) are respectively arranged on both sides of the support platform (1); the cutting tool (6) and the grinding tool (8) are connected via a linkage structure (31) to form an integral structure for synchronous rotation; the cutting tool (6) and the grinding tool (8) are respectively connected to two sets of the opening structures (7) via the rotating shaft (13); the two sets of the opening structures (7) are respectively arranged at both sides of the support platform (1), and the ends of the abutment rods (24) of the two sets of the opening structures (7) are arranged corresponding to each other.

8. The thermal insulation pipe positioning and cutting device according to claim 7, characterized in that: The linkage structure (31) comprises a connecting rod 34, and straight groove members (35) arranged in a horizontal state are respectively fixedly installed at both ends of the connecting rod (34), and the two straight groove members (35) are respectively arranged on the outside of the cutting tool (6) and the grinding tool (8), and the openings of the two straight groove members (35) are arranged opposite to each other; A first connecting roller (36) is slidably disposed inside one side of the opening of the two straight groove members (35), and the other ends of the two first connecting rollers (36) are fixedly connected to the cutting tool (6) and the grinding tool (8) respectively; The closed side of the straight groove member (35) is slidably connected to a limit bracket (38) via a second connecting roller (37); the limit bracket (38) is fixedly mounted on the mobile platform (4); and the connecting rod (34) slides vertically longitudinally in the limit bracket (38) via the second connecting roller (37).

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