Auxiliary tool for manual cutting torch cutting

Abstract

The invention relates to the technical field of manual cutting torch assistance, in particular to an auxiliary tool for manual cutting torch cutting. The four rolling bearings are rotationally mounted at the four corners of the supporting base respectively; the fixed bracket is fixedly mounted on the top surface of the supporting base; and the adjustable bolt is arranged on the inner side wall of the fixed bracket. Compared with the prior art, the supporting base and the fixing support are arranged, so that in the cutting operation process of the manual cutting torch, the walking route of the cutting nozzle is fixed, the problem that the gas cutting nozzle shakes in the direction perpendicular to the cutting face when walking in the cutting direction can be solved, cutting out-of-tolerance is avoided, and the cutting quality is improved; and meanwhile, the problems of non-uniform cutting and poor cutting quality caused by hand and eye fatigue of an operator under the condition of long-time operation are solved, the waste of human resources caused by grinding and shape correction when the quality problem occurs is also solved, various consumables such as angle machines and sand wheel sheets are reduced, and the engineering construction cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of manual cutting torch assistance, in particular to an auxiliary tool for manual cutting torch cutting. Background Art

[0002] Manual torch cutting, also known as oxygen cutting or flame cutting, is a thermal cutting technology that uses the flame generated by the combustion of combustible gas (such as acetylene, petroleum gas, natural gas or coal gas) mixed with oxygen to separate materials. During the gas cutting process, the flame preheats the material to the ignition point at the starting point, and then injects oxygen flow to cause the metal material to violently oxidize and burn. The generated oxide slag is blown away by the air flow, thus forming an incision. In this process, the purity of oxygen should be greater than 99% to ensure the cutting effect.

[0003] At present, manual cutting torches are very random in the process of cutting steel, channel steel, and irregular profiles. When cutting along the cutting direction, the cutting nozzle wind line is not perpendicular to the workpiece horizontally, which will cause the angle deviation of the cutting mouth, and the quality of the cutting surface flatness and cutting depth is not optimistic. To improve the quality of cutting flatness, the cutting nozzle must always be kept perpendicular to the steel plate during the cutting process. However, during the gas cutting operation, the operator holds the gas cutting torch without a ruler and can only feel the angle between the cutting nozzle and the steel plate by visual inspection. It is impossible to always keep the cutting nozzle perpendicular to the steel plate, causing the cutting flatness to change at any time.

[0004] Therefore, the present application provides an auxiliary tool for manual torch cutting. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an auxiliary tool for manual torch cutting to solve the problem of inaccurate cutting by a handheld gas cutting torch.

[0006] Based on the above purpose, the present invention provides an auxiliary tool for manual torch cutting, comprising:

[0007] Support base;

[0008] Four rolling bearings are rotatably mounted at the four corners of the support base;

[0009] A fixed bracket, fixedly mounted on the top surface of the support base;

[0010] An adjustable bolt is arranged on the inner side wall of the fixing bracket;

[0011] A fixed shaft, fixedly mounted on one side of the top surface of the support base;

[0012] A collar, sleeved on the outer wall of the fixed shaft;

[0013] A support ring, fixedly mounted on the outer wall of the collar through a support rod;

[0014] A bracket, screwed to a side of the support base;

[0015] A push plate, fixedly mounted on one end of the bracket away from the support base;

[0016] A purge assembly, disposed between the support base and the push plate;

[0017] A connection box is fixedly mounted on the side of the push plate opposite to the support base;

[0018] A cleaning component is arranged inside the connection box;

[0019] Four scraping mechanisms are respectively arranged on the side surface of the support base and at positions corresponding to the four rolling bearings.

[0020] Preferably, the purge assembly comprises:

[0021] A sealing sleeve, fixedly mounted on the inner wall of the support base;

[0022] A reciprocating screw is rotatably mounted on the inner side wall of the support base, and two ends of the reciprocating screw pass through the support base and are fixedly connected to the two rolling bearings;

[0023] A sealing baffle, fixedly mounted on the inner wall of the sealing sleeve;

[0024] Two piston plates are slidably mounted on the inner side walls of both sides of the sealing sleeve through sliding grooves and sliding blocks, and the piston plates are screwed to the reciprocating screw;

[0025] Two exhaust pipes are arranged through the outer walls of both sides of the sealing sleeve, and the top ends of the exhaust pipes pass through the top surface of the supporting base;

[0026] Two air outlet pipes are arranged through the outer walls of both sides of the sealing sleeve, and the ends of the air outlet pipes pass through the side surfaces of the supporting base;

[0027] An air supply pipe is arranged on the top surface of the push plate;

[0028] Four nozzles are symmetrically arranged in groups of two on the air supply pipe, and the nozzles are connected to the air supply pipe;

[0029] Two connecting hoses are respectively arranged on the inner side walls of the two air outlet pipes, and one end of the connecting hose away from the air outlet pipe is connected to the air supply pipe.

[0030] Preferably, the threads of the outer walls at both ends of the reciprocating screw are in opposite directions, and the nozzle is arranged to be inclined downward.

[0031] Preferably, one-way valves with opposite flow directions are installed on the inner walls of the air extraction pipe and the air outlet pipe, and a filter screen is provided on the inner wall of the air extraction pipe.

[0032] Preferably, the cleaning component comprises:

[0033] A cleaning roller, rotatably mounted on the inner wall of the connection box via a rotating shaft;

[0034] A material guide frame, fixedly mounted on the inner wall of the connection box;

[0035] A plurality of tooth comb grooves are distributed in a linear array and are arranged on the side of the material guide frame;

[0036] A material collecting frame is slidably mounted on the inner side wall of the material guiding frame, and one end of the material collecting frame passes through the side surface of the connecting box;

[0037] A pull plate is fixedly mounted on one end of the aggregate frame passing through the connection box.

[0038] Preferably, one end of the rotating shaft passes through the connecting box and is fixedly mounted with a driven wheel.

[0039] Preferably, the outer wall of the cleaning roller is provided with hard bristles, and the driven wheel is provided with anti-slip grooves.

[0040] Preferably, the scraping mechanism comprises:

[0041] A support plate, fixedly mounted on a side of the support base;

[0042] An inclined portion is provided on the top surface of the support plate;

[0043] A material guide groove is provided on a side of the top surface of the support plate away from the rolling bearing;

[0044] A cleaning scraper strip is fixedly mounted on the side of the support plate.

[0045] Preferably, the cleaning scraper is made of rubber material, and the cleaning scraper is in contact with the outer wall of the rolling bearing.

[0046] Preferably, the outer wall of the fixed shaft is threaded with a head adjusting nut.

[0047] Beneficial effects of the present invention:

[0048] 1. This auxiliary tool for manual torch cutting, by setting a support base and a fixed bracket, can fix the walking route of the cutting nozzle during the cutting operation of the manual torch, which can solve the shaking of the gas cutting nozzle perpendicular to the cutting surface when walking along the cutting direction, avoid cutting out of tolerance, improve the cutting quality, and solve the problems of uneven cutting and poor incision quality caused by hand and eye fatigue of operators under long-term operation. It also solves the waste of human resources caused by grinding and correction when quality problems occur, reduces various consumables such as angle machines and grinding wheels, and reduces the cost of engineering construction.

[0049] 2. This auxiliary tool for manual torch cutting is equipped with a push plate and a purge assembly. When the support base moves, the push plate can push the dust and impurities on the moving path to both sides. At the same time, the rotation of the rolling bearing drives the reciprocating screw to rotate, and then drives the piston plate to reciprocate, thereby realizing the gas pumping and cleaning the dust on the cutting path, avoiding the vibration caused by the rolling bearing crushing the dust, thereby significantly improving the stability of torch cutting.

[0050] 3. This auxiliary tool for manual torch cutting is equipped with a cleaning component and a scraping mechanism. The hard bristles on the cleaning roller perform secondary cleaning of the dust that may remain on the cutting path, and the impurities in the bristles are cleaned off through the tooth comb grooves on the guide frame and collected in the aggregate frame for subsequent centralized processing. At the same time, the cleaning scraper is in contact with the outer wall of the rolling bearing, and can scrape and clean the impurities on it, and discharge the impurities to the outside through the inclined portion and the guide groove, thereby maintaining the smoothness of the outer surface of the rolling bearing and the stability of rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0053] Figure 2 It is a schematic diagram of the partial cutaway structure of the present invention;

[0054] Figure 3 This is a schematic diagram of the push plate structure of the present invention;

[0055] Figure 4 It is a schematic diagram of the partial cutaway structure of the push plate of the present invention;

[0056] Figure 5 For the present invention Figure 4The enlarged structural diagram at A in the middle;

[0057] Figure 6 For the present invention Figure 1 Enlarged structural diagram at B in the middle.

[0058] The markings in the figure are:

[0059] 1. Support base; 2. Rolling bearing; 3. Fixed bracket; 4. Adjustable bolt; 5. Fixed shaft; 6. Ring; 7. Support ring; 81. Sealing sleeve; 82. Reciprocating screw; 83. Sealing baffle; 84. Piston plate; 85. Exhaust pipe; 86. Exhaust pipe; 87. Air supply pipe; 88. Nozzle; 89. Connecting hose; 9. Bracket; 10. Push plate; 11. Connecting box; 121. Cleaning roller; 122. Driven wheel; 123. Material guide frame; 124. Tooth comb groove; 125. Material collection frame; 126. Pull plate; 131. Support plate; 132. Inclined portion; 133. Material guide trough; 134. Cleaning scraper. DETAILED DESCRIPTION

[0060] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0061] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0062] like Figures 1 to 6As shown, an auxiliary tool for manual torch cutting comprises a support base 1; four rolling bearings 2, which are rotatably mounted at the four corners of the support base 1; a fixed bracket 3, which is fixedly mounted on the top surface of the support base 1; an adjustable bolt 4, which is arranged on the inner side wall of the fixed bracket 3; a fixed shaft 5, which is fixedly mounted on one side of the top surface of the support base 1, and the outer wall of the fixed shaft 5 is threaded with a head adjusting nut; a collar 6, which is sleeved on the outer wall of the fixed shaft 5; a support ring 7, which is fixedly mounted on the outer wall of the collar 6 through a strut; a bracket 9, which is screwed on the side of the support base 1; a push plate 10, which is fixedly mounted on the end of the bracket 9 away from the support base 1; a purge assembly, which is arranged between the support base 1 and the push plate 10; a connecting box 11, which is fixedly mounted on the side of the push plate 10 opposite to the support base 1; a cleaning assembly, which is arranged inside the connecting box 11; four scraping mechanisms, which are respectively arranged on the side of the support base 1 and the corresponding positions of the four rolling bearings 2;

[0063] When in use, remove the adjustable bolt 4, screw the ring 6 onto the fixed shaft 5, then place the manual cutting torch as a whole on the auxiliary tool, insert the cutting torch nozzle into the supporting ring 7, and insert the cutting torch mixed gas pipe and the cutting oxygen pipe into the fixed bracket 3. Then install the adjustable bolt 4 on the fixed bracket 3 between the mixed gas pipe and the cutting oxygen pipe, and then adjust the height of the fixed shaft 5 according to the thickness of the object to be cut, move the adjustable bolt 4 up and down according to the height of the fixed shaft 5 to reach the appropriate position, and tighten the bolt, and check whether the cutting torch is installed firmly. After confirmation, the cutting operation can be carried out. During the cutting process, the cutting torch can be supported by the supporting base 1 and the fixed bracket 3, and the rolling bearing 2 can rotate, which ensures that the cutting torch is more stable during the cutting process, keeps it stable with the cutting surface, and the cutting is more complete.

[0064] like Figure 1 , Figure 2As shown, the purge assembly includes: a sealing sleeve 81, fixedly mounted on the inner wall of the support base 1; a reciprocating screw 82, rotatably mounted on the inner wall of the support base 1, and the two ends of the reciprocating screw 82 pass through the support base 1 and are fixedly connected to two rolling bearings 2, and the threads of the outer walls of the two ends of the reciprocating screw 82 are in opposite directions; a sealing baffle 83, fixedly mounted on the inner wall of the sealing sleeve 81; two piston plates 84, respectively slidably mounted on the inner walls of the two sides of the sealing sleeve 81 through a slide groove and a slider, and the piston plate 84 is screwed to the reciprocating screw 82; two exhaust pipes 85, which are arranged on the outer walls of the two sides of the sealing sleeve 81, and the top of the exhaust pipe 85 passes through the support base 1. On the top surface of the support base 1, a filter screen is provided on the inner wall of the air extraction pipe 85; two air outlet pipes 86 are provided through the outer walls of both sides of the sealing sleeve 81, and the ends of the air outlet pipes 86 pass through the side of the support base 1, and the inner walls of the air extraction pipe 85 and the air outlet pipe 86 are installed with check valves with opposite flow directions; an air supply pipe 87 is provided on the top surface of the push plate 10; four nozzles 88 are symmetrically provided on the air supply pipe 87 in groups of two, and the nozzles 88 are connected to the air supply pipe 87, and the nozzles 88 are arranged obliquely downward; two connecting hoses 89 are respectively provided on the inner side walls of the two air outlet pipes 86, and the end of the connecting hose 89 away from the air outlet pipe 86 is connected to the air supply pipe 87;

[0065] During the movement of the cutting torch, the rolling bearing 2 can be driven to rotate, and during the rotation of the rolling bearing 2, the reciprocating screw 82 can be driven to rotate. The two piston plates 84 are slidably connected to the inner wall of the sealing sleeve 81 through the sliding groove and the slider, and are screwed to the reciprocating screw 82. Therefore, when the reciprocating screw 82 rotates, the piston plate 84 can be driven to reciprocate. A one-way valve with opposite flow directions is installed between the exhaust pipe 85 and the exhaust pipe 86. Under the action of the one-way valve, during the reciprocating movement of the piston plate 84, the gas can be drawn to the sealing sleeve through the exhaust pipe 85 The gas in the sealing sleeve 81 can be pushed into the air outlet pipe 86 and enter the air supply pipe 87 through the connecting hose 89, and then sprayed out through the nozzle 88. During the movement of the support base 1, the dust and impurities on the moving path can be pushed by the push plate 10, and can be pushed to both sides of the moving path. At the same time, the gas sprayed from the nozzle 88 can blow and clean the dust in front of the push plate 10, ensuring that the dust can be removed, avoiding vibration caused by crushing the rolling bearing 2, and further improving the cutting stability of the cutting torch.

[0066] like Figure 4 , Figure 5As shown, the cleaning assembly includes: a cleaning roller 121, which is rotatably mounted on the inner wall of the connection box 11 through a rotating shaft, and the outer wall of the cleaning roller 121 is provided with hard bristles, one end of the rotating shaft passes through the connection box 11 and is fixedly mounted with a driven wheel 122, and the driven wheel 122 is provided with anti-skid patterns; a material guide frame 123, which is fixedly mounted on the inner wall of the connection box 11; a plurality of tooth comb grooves 124, which are distributed in a linear array and are opened on the side of the material guide frame 123; a material collection frame 125, which is slidably mounted on the inner wall of the material guide frame 123, and one end of the material collection frame 125 passes through the side of the connection box 11; a pull plate 126, which is fixedly mounted on one end of the material collection frame 125 passing through the connection box 11;

[0067] During the movement of the push plate 10, the connecting box 11 can be driven to move synchronously, and the driven wheel 122 is in contact with the moving path, thereby driving the driven wheel 122 to rotate. The rotation of the driven wheel 122 can drive the cleaning roller 121 to rotate through the rotating shaft, and the hard bristles on the outer surface of the cleaning roller 121 can clean the dust that may remain on the cutting path, and during the rotation of the cleaning roller 121, the hard bristles thereon can be cleaned through the tooth comb grooves 124 on the material guide frame 123, and the impurities in the hard bristles can be cleaned down and enter into the collection frame 125 for collection, and the staff can pull out the collection frame 125 through the pull plate 126 to collect and clean it in a centralized manner.

[0068] like Figure 6 As shown, the scraping mechanism includes: a support plate 131, fixedly mounted on the side of the support base 1; an inclined portion 132, opened on the top surface of the support plate 131; a material guide groove 133, opened on the side of the top surface of the support plate 131 away from the rolling bearing 2; a cleaning scraper 134, fixedly mounted on the side of the support plate 131, the cleaning scraper 134 is made of rubber material, and the cleaning scraper 134 is in contact with the outer wall of the rolling bearing 2;

[0069] During the rotation of the rolling bearing 2, since the outer wall of the rolling bearing 2 is in contact with the cleaning scraper 134, the cleaning scraper 134 can scrape and clean the impurities on the rolling bearing 2, and the cleaned impurities can enter the guide groove 133 through the inclined portion 132 and be discharged to the outside of the rolling bearing 2, making the outer surface of the rolling bearing 2 smoother and the rotation more stable.

[0070] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0071] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary tool for manual torch cutting, characterized in that: include: Support base (1); Four rolling bearings (2) are rotatably mounted at four corners of the support base (1); A fixed bracket (3) fixedly mounted on the top surface of the support base (1); An adjustable bolt (4) is arranged on the inner side wall of the fixing bracket (3); A fixed shaft (5) is fixedly mounted on one side of the top surface of the support base (1); A collar (6) sleeved on the outer wall of the fixed shaft (5); A support ring (7) is fixedly mounted on the outer wall of the collar (6) via a support rod; A bracket (9) screwed to a side surface of the support base (1); A push plate (10) is fixedly mounted on an end of the bracket (9) away from the support base (1); A purge assembly is arranged between the support base (1) and the push plate (10); A connection box (11) is fixedly mounted on the side of the push plate (10) opposite to the support base (1); A cleaning component is arranged inside the connection box (11); Four scraping mechanisms are respectively arranged on the side surface of the support base (1) at positions corresponding to the four rolling bearings (2).

2. The auxiliary tool for manual torch cutting according to claim 1, characterized in that: The purge assembly comprises: A sealing sleeve (81) fixedly mounted on the inner wall of the support base (1); A reciprocating screw (82) is rotatably mounted on the inner side wall of the support base (1), and two ends of the reciprocating screw (82) pass through the support base (1) and are fixedly connected to the two rolling bearings (2); A sealing baffle (83) fixedly mounted on the inner wall of the sealing sleeve (81); Two piston plates (84) are slidably mounted on the inner side walls of both sides of the sealing sleeve (81) through sliding grooves and sliding blocks, and the piston plates (84) are screwed to the reciprocating screw (82); Two exhaust pipes (85) are arranged through the outer walls of both sides of the sealing sleeve (81), and the top ends of the exhaust pipes (85) pass through the top surface of the supporting base (1); Two air outlet pipes (86) are arranged through the outer walls of both sides of the sealing sleeve (81), and the ends of the air outlet pipes (86) pass through the side surfaces of the supporting base (1); An air supply pipe (87) is arranged on the top surface of the push plate (10); Four nozzles (88) are symmetrically arranged in groups of two on the air supply pipe (87), and the nozzles (88) are connected to the air supply pipe (87); Two connecting hoses (89) are respectively arranged on the inner side walls of the two air outlet pipes (86), and one end of the connecting hose (89) away from the air outlet pipe (86) is connected to the air supply pipe (87).

3. The auxiliary tool for manual torch cutting according to claim 2, characterized in that: The threads of the outer walls at both ends of the reciprocating screw (82) are in opposite directions, and the nozzle (88) is arranged to be inclined downward.

4. The auxiliary tool for manual torch cutting according to claim 2, characterized in that: One-way valves with opposite flow directions are installed on the inner walls of the air extraction pipe (85) and the air outlet pipe (86), and a filter screen is provided on the inner wall of the air extraction pipe (85).

5. The auxiliary tool for manual torch cutting according to claim 4, characterized in that: The cleaning component includes: A cleaning roller (121) is rotatably mounted on the inner wall of the connection box (11) via a rotating shaft; A material guide frame (123) fixedly mounted on the inner wall of the connection box (11); A plurality of tooth comb grooves (124) are distributed in a linear array and are arranged on the side of the material guide frame (123); A material collecting frame (125) is slidably mounted on the inner side wall of the material guiding frame (123), and one end of the material collecting frame (125) passes through the side surface of the connecting box (11); A pull plate (126) is fixedly mounted on one end of the aggregate frame (125) passing through the connection box (11).

6. The auxiliary tool for manual torch cutting according to claim 5, characterized in that: One end of the rotating shaft passes through the connecting box (11) and is fixedly mounted with a driven wheel (122).

7. The auxiliary tool for manual torch cutting according to claim 6, characterized in that: The outer surface wall of the cleaning roller (121) is provided with hard bristles, and the driven wheel (122) is provided with anti-skid patterns.

8. The auxiliary tool for manual torch cutting according to claim 1, characterized in that: The scraping mechanism comprises: A support plate (131) fixedly mounted on a side of the support base (1); An inclined surface (132) is provided on the top surface of the support plate (131); A material guide groove (133) is provided on a side of the top surface of the support plate (131) away from the rolling bearing (2); The cleaning scraper (134) is fixedly mounted on the side of the support plate (131).

9. The auxiliary tool for manual torch cutting according to claim 8, characterized in that: The cleaning scraper (134) is made of rubber material, and the cleaning scraper (134) fits the outer wall of the rolling bearing (2).

10. The auxiliary tool for manual torch cutting according to claim 1, characterized in that: The outer wall of the fixed shaft (5) is threadedly sleeved with a head adjustment nut.

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