Annular sawing device for flammable and explosive high-risk occasions

Abstract

The utility model discloses an annular saw cutting device for flammable and explosive high-risk occasions, which comprises a rack (1) and is characterized in that a clamping mechanism and a rotary annular cutting mechanism are arranged on a working table of the rack (1), the clamping mechanism is composed of four clamping jaw assemblies (2) with the same structure, the four clamping jaw assemblies (2) are distributed along the length direction of the working table, and the rotary annular cutting mechanism is arranged on the working table of the rack (1). The clamping jaw assembly (2) comprises a sliding rail arranged on the workbench, a left sliding table and a right sliding table are connected to the sliding rail in a sliding mode, a left clamping jaw (3) is arranged on the left sliding table, a right clamping jaw (4) is arranged on the right sliding table, the clamping jaw assembly (2) further comprises a double-helix screw, a first hand wheel (5) is arranged at the end of the double-helix screw, and a second hand wheel (6) is arranged at the end of the double-helix screw. The double-helix screw is provided with two threaded sections opposite in rotation direction, the left sliding table and the right sliding table are connected with the two threaded sections through nut seats respectively, and the rotary ring cutting mechanism is located between every two adjacent clamping jaw assemblies (2).

Description

Technical Field

[0001] The utility model relates to a machining device, in particular to a ring sawing device for inflammable, explosive and high-risk occasions. Background Art

[0002] A certain type of product is cylindrical in shape, with explosives wrapped inside and a shell made of special materials on the outside. In some cases, the shell needs to be peeled off the surface of the product. The traditional method is for operators to use cutting tools to cut a ring-shaped notch along the outer wall of the cylindrical product. However, this method has low efficiency due to its low degree of automation, and the cutting quality is usually poor. The cutting quality is often positively correlated with the operator's experience and is highly dependent on personnel. At the same time, since this type of product contains explosives, sparks may be generated during the cutting process, posing a major safety hazard.

[0003] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0004] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a ring sawing device which has a high degree of automation, can effectively improve work efficiency, can ensure the ring cutting effect, and can avoid casualties.

[0005] The technical solution of the utility model is: a circular sawing device for inflammable and explosive high-risk occasions, including a frame 1, characterized in that: a clamping mechanism and a rotating circular cutting mechanism are arranged on the working table of the frame 1,

[0006] The clamping mechanism is composed of four jaw assemblies 2 with the same structure, and the four jaw assemblies 2 are distributed along the length direction of the workbench. The jaw assembly 2 includes a slide rail arranged on the workbench, and a left slide and a right slide are slidably connected on the slide rail. A left jaw 3 is arranged on the left slide, and a right jaw 4 is arranged on the right slide. The jaw assembly 2 also includes a double-helical screw, and a first hand wheel 5 is arranged at the end of the double-helical screw. Two threaded sections with opposite rotation directions are arranged on the double-helical screw. The left slide and the right slide are respectively connected to the two threaded sections through nut seats.

[0007] The rotating ring cutting mechanism is located between two adjacent jaw assemblies 2.

[0008] The rotary circular cutting mechanism comprises an annular outer shell 6 fixedly connected to the workbench, an annular inner shell 7 is rotatably connected inside the annular outer shell 6, an annular rotating body 8 is arranged in the annular inner shell 7, a gear ring 9 is arranged outside the annular rotating body 8, a servo motor 10 is arranged on the annular outer shell 6, a driving tooth 11 is arranged at the working end of the servo motor 10, and the driving tooth 11 is meshed with the gear ring 9, and a tool connecting seat 12 is arranged on the annular inner shell 7.

[0009] A tool feed slide 13 is slidably connected to the tool connecting seat 12, and a tool clamp 14 is arranged on the tool feed slide 13. A feed screw 15 is rotatably supported on the tool connecting seat 12, and a second hand wheel 16 is arranged at the end of the feed screw 15. A nut block 17 is connected to the feed screw 15, and the nut block 17 is fixedly connected to the tool feed slide 13. A first gear 18 is also connected to the feed screw 15, and the first gear 18 is meshed with the second gear 19, and the second gear 19 is connected to a rotating shaft rotatably supported on the annular inner shell 7, and a third gear 29 is arranged at the end of the rotating shaft, and a toggle rod 20 is arranged on the annular outer shell 6, and the toggle rod 20 can toggle the third gear 29 to rotate.

[0010] A lower camera 21 is disposed at the lower part of the frame 1, a first support frame 22 is disposed at the top of the annular housing 6, and an upper camera 23 is disposed at the top of the first support frame 22.

[0011] The workbench is provided with two symmetrically distributed second support frames 24 , on which a temperature sensor 25 is provided. The monitoring position of the temperature sensor 25 corresponds to the position where the tool cuts the workpiece. An air cooling pipeline 26 is also provided on the second support frame 24 .

[0012] Workpiece positioning support components 27 are provided at both the front and rear ends of the workbench.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] This type of circular sawing device for inflammable and explosive high-level occasions has a simple structure, ingenious design, and reasonable layout. It is designed with a special structure to address the various problems existing in the traditional manual circular cutting method. It uses multiple clamping jaw assemblies to fix the workpiece to be cut, and uses the tool in the rotating circular cutting mechanism to remove the epidermis on the outer surface of the workpiece. Through the precise control of the servo motor, precise cutting of a specific thickness can be achieved, and high-efficiency and high-quality circular cutting operations can be achieved. At the same time, its cutting process does not require manual intervention or supervision, and can be fully automated. Personnel are not on site, so safety hazards can be effectively eliminated. In addition, its manufacturing process is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model (direction one).

[0016] Figure 2A schematic diagram of the three-dimensional structure of an embodiment of the utility model is shown (direction two, and the annular inner shell is hidden).

[0017] Figure 3 It is a structural schematic diagram (section view) of the rotary cutting mechanism part in the embodiment of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the rotary cutting mechanism in the embodiment of the utility model (direction one).

[0019] Figure 5 yes Figure 4 Enlarged view of part A in .

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the rotary cutting mechanism in the embodiment of the utility model (direction two).

[0021] Figure 7 yes Figure 6 Enlarged view of part B in . DETAILED DESCRIPTION

[0022] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figure 1 to Figure 7 As shown: a circular sawing device for inflammable, explosive and high-risk occasions, including a frame 1 as a basis, and a clamping mechanism and a rotating circular cutting mechanism are arranged on the working table of the frame 1.

[0023] The clamping mechanism is composed of four jaw assemblies 2 with the same structure, and the four jaw assemblies 2 are distributed along the length direction of the workbench. The jaw assembly 2 includes a slide rail arranged on the workbench, and a left slide and a right slide are slidably connected on the slide rail. A left jaw 3 is arranged on the left slide, and a right jaw 4 is arranged on the right slide. The jaw assembly 2 also includes a double-helical screw, and a first hand wheel 5 is arranged at the end of the double-helical screw. Two threaded sections with opposite rotation directions are arranged on the double-helical screw. The left slide and the right slide are respectively connected to the two threaded sections through nut seats.

[0024] The rotating ring cutting mechanism is located between two adjacent jaw assemblies 2.

[0025] The rotary circular cutting mechanism comprises an annular outer shell 6 fixedly connected to the workbench, an annular inner shell 7 is rotatably connected inside the annular outer shell 6, an annular rotating body 8 is arranged in the annular inner shell 7, a gear ring 9 is arranged outside the annular rotating body 8, a servo motor 10 is arranged on the annular outer shell 6, a driving tooth 11 is arranged at the working end of the servo motor 10, and the driving tooth 11 is meshed with the gear ring 9, and a tool connecting seat 12 is arranged on the annular inner shell 7.

[0026] A tool feed slide 13 is slidably connected to the tool connecting seat 12, and a tool clamp 14 is arranged on the tool feed slide 13. A feed screw 15 is rotatably supported on the tool connecting seat 12, and a second hand wheel 16 is arranged at the end of the feed screw 15. A nut block 17 is connected to the feed screw 15, and the nut block 17 is fixedly connected to the tool feed slide 13. A first gear 18 is also connected to the feed screw 15, and the first gear 18 is meshed with the second gear 19, and the second gear 19 is connected to a rotating shaft rotatably supported on the annular inner shell 7, and a third gear 29 is arranged at the end of the rotating shaft, and a toggle rod 20 is arranged on the annular outer shell 6, and the toggle rod 20 can toggle the third gear 29 to rotate.

[0027] A lower camera 21 is disposed at the lower part of the frame 1, a first support frame 22 is disposed at the top of the annular housing 6, and an upper camera 23 is disposed at the top of the first support frame 22.

[0028] The workbench is provided with two symmetrically distributed second support frames 24 , on which a temperature sensor 25 is provided. The monitoring position of the temperature sensor 25 corresponds to the position where the tool cuts the workpiece. An air cooling pipeline 26 is also provided on the second support frame 24 .

[0029] Workpiece positioning support components 27 are provided at both the front and rear ends of the workbench.

[0030] The working process of the annular sawing device for flammable and explosive high-risk occasions of the utility model embodiment is as follows: first, the workpiece to be subjected to annular cutting processing is placed on the clamping mechanism and the rotating annular cutting mechanism, specifically, the workpiece is inserted into the opening of the annular inner shell 7, and the front and rear ends of the workpiece are supported and positioned by the workpiece positioning support assembly 27, and then the workpiece is clamped by multiple clamping jaw assemblies 2. At this time, the workpiece is relatively fixed to the frame 1, and the servo motor 10 in the rotating annular cutting mechanism is started. The annular rotating body 8 will drive the annular inner shell 7 to rotate at a uniform speed relative to the annular outer shell 6. During the rotation process, since the workpiece is fixed relative to the annular outer shell 6, and the tool connecting seat 12 is fixed relative to the annular inner shell 7, the tool connecting seat 12 (that is, the tool fixed thereon) will rotate relative to the workpiece. During the movement, the tool gradually feeds and contacts with the outer shell of the surface layer of the workpiece. When the tool cuts a circular incision on the outer shell, the outer shell of the surface layer of the workpiece is divided into two independent parts. At this time, the tool is retracted in the opposite direction, the clamping jaw assembly 2 is released, the workpiece is removed from the device, and the outer shells cut into two parts at both ends are pulled off the workpiece.

[0031] The working process of the clamping jaw assembly 2 in the clamping mechanism is as follows: the operator drives the double-helix screw to rotate through the first hand wheel 5. Since the left slide and the right slide are respectively connected between opposite thread segments on the double-helix screw, when the double-helix screw rotates, the left slide and the right slide will simultaneously move in opposite directions. When the left and right slides approach each other, the left clamping jaw 3 and the right clamping jaw 4 thereon move toward each other, thereby clamping the workpiece surface which is generally cylindrical; when all the clamping jaw assemblies 2 perform the above-mentioned operating actions and clamp the workpiece, the workpiece is fixed to the workbench through these clamping jaw assemblies 2.

[0032] When the servo motor 10 is working, it will drive the active gear 11 to rotate, and the gear ring 9 meshing with the active gear 11 will drive the annular inner shell 7 to rotate relative to the annular outer shell 6, so the tool connecting seat 12 fixedly connected to the annular inner shell 7 will also rotate around the workpiece.

[0033] During the movement of the tool connecting seat 12, every time it rotates around the workpiece, the toggle rod 20 set on the annular shell 6 will toggle the third gear 29 once, and the third gear 29 drives the second gear 19 to rotate through the rotating shaft, and then drives the first gear 18 and the feed screw 15 to rotate a certain angle. When the feed screw 15 rotates, it will drive the tool feed slide 13 threadedly connected to it through the nut block 17 to move a certain distance along the length direction of the feed screw 15, so that the tool clamped on the tool clamp 14 will also move accordingly.

[0034] That is to say, every time the annular inner shell 7 rotates one circle, the tool will make a feeding action of a certain distance. Since the transmission ratio of the active tooth 11 and the gear ring 9, the transmission ratio of the second gear 19 and the first gear 18, the helix angle of the feed screw 15, and the thickness of the outer shell on the workpiece that needs to be cut are all known, it is only necessary to determine the distance between the tool and the workpiece surface in the initial state, and then it is possible to calculate how many circles the output shaft of the servo motor 10 rotates so that the tool can completely cut through the outer shell outside the workpiece;

[0035] During operation, take an auxiliary tool with fixed thickness (such as Figure 5 The standard thickness plate 28 described in the figure is placed close to the surface of the workpiece shell, and then the tool is adjusted so that the tool contacts the other side of the standard thickness plate 28. At this time, the distance between the tool tip and the workpiece shell is the thickness of the standard thickness plate 28. Then, the tool is fixed by the tool fixture 14, and the work can be started;

[0036] During the operation of the device, for safety reasons, the operating environment is unattended, so the lower camera 22 and the upper camera 23 always detect the working status of the tool and send the collected video signal to the remote display screen for monitoring by the operator;

[0037] The temperature sensor 25 detects the temperature of the contact portion between the tool and the workpiece shell in real time, and the air cooling pipeline 26 blows high-speed air to the contact point between the two to prevent the workpiece shell from generating high temperature due to cutting to ensure safety.

Claims

1. A circular sawing device for use in flammable and explosive high-risk situations, comprising a frame (1), characterized in that: The working table of the frame (1) is provided with a clamping mechanism and a rotating circular cutting mechanism. The clamping mechanism is composed of four clamping jaw assemblies (2) of the same structure. The four clamping jaw assemblies (2) are distributed along the length direction of the workbench. The clamping jaw assembly (2) includes a slide rail arranged on the workbench, and a left slide and a right slide are slidably connected on the slide rail. The left slide is provided with a left clamping jaw (3), and the right slide is provided with a right clamping jaw (4). The clamping jaw assembly (2) also includes a double-helical screw. A first hand wheel (5) is provided at the end of the double-helical screw. Two threaded sections with opposite rotation directions are provided on the double-helical screw. The left slide and the right slide are respectively connected to the two threaded sections via nut seats. The rotary cutting mechanism is located between two adjacent jaw assemblies (2). The rotary circular cutting mechanism comprises an annular outer shell (6) fixedly connected to a workbench, an annular inner shell (7) rotatably connected inside the annular outer shell (6), an annular rotating body (8) is arranged in the annular inner shell (7), a gear ring (9) is arranged outside the annular rotating body (8), a servo motor (10) is arranged on the annular outer shell (6), a driving tooth (11) is arranged at the working end of the servo motor (10), the driving tooth (11) and the gear ring (9) are meshed with each other, and a tool connecting seat (12) is arranged on the annular inner shell (7). The tool connecting seat (12) is slidably connected to a tool feed slide (13), and a tool fixture (14) is provided on the tool feed slide (13). A feed screw (15) is rotatably supported on the tool connecting seat (12), and a second hand wheel (16) is provided at the end of the feed screw (15). A nut block (17) is connected to the feed screw (15), and the nut block (17) is fixedly connected to the tool feed slide (13). A first gear (18) is also connected to the feed screw (15), and the first gear (18) is meshed with a second gear (19), and the second gear (19) is connected to a rotating shaft rotatably supported on the annular inner shell (7), and a third gear (29) is provided at the end of the rotating shaft. A toggle rod (20) is provided on the annular outer shell (6), and the toggle rod (20) can toggle the third gear (29) to rotate. A lower camera (21) is provided at the lower part of the frame (1), a first support frame (22) is provided at the top of the annular housing (6), and an upper camera (23) is provided at the top of the first support frame (22). The workbench is provided with two symmetrically distributed second support frames (24), the second support frames (24) are provided with temperature sensors (25), the monitoring position of the temperature sensor 25 corresponds to the position of the tool cutting the workpiece, and the second support frames (24) are also provided with air cooling pipelines (26).

2. The circular sawing device for inflammable and explosive high-risk occasions according to claim 1 is characterized in that: Workpiece positioning support components (27) are provided at both the front and rear ends of the workbench.

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