Gas cutting tool for removing casting head of support casting

Abstract

The utility model provides a gas cutting tool for removing a casting head of a support type casting, which comprises a working table, a walking trolley capable of walking is arranged on the working table, and a height-adjustable cutting assembly is arranged on the walking trolley; the placing assembly is used for placing the iron casting, the placing assembly is a first jig or a second jig, the placing assembly is located on one side of the guide rail, and the placing assembly is also fixed to the workbench; a discharging groove is formed in the workbench and located below the cutting assembly. The first jig is of a blocky structure, and the upper surface of the first jig is sunken downwards to form a containing groove used for containing an iron casting. The cutting assembly comprises two cutting parts with the distance between cutting heads adjustable, and the two cutting parts are located above the discharging groove. The tool has the advantages that operation is easy, positioning can be adjusted, and riser removing operation can be conducted on support castings of the same type and different sizes through the tool.

Description

Technical Field

[0001] The utility model relates to a gas cutting tool for removing the pouring opening of a bracket type casting. Background Art

[0002] BRACKET castings are usually used in key parts of engineering machinery. They have the characteristics of load-bearing and pressure-bearing. They are assembled to working parts through their own pin holes. They are usually assembled on excavator buckets and loader arms. They have high size and internal quality requirements.

[0003] Due to its complex structure, after the riser is placed in the hot spot, it cannot be removed by rough turning, but can only be removed by artificial gas cutting. Therefore, the following points should be paid attention to in the design of the pouring riser: 1. The position of the riser should ensure the shrinkage compensation effect and ensure that the casting has no shrinkage, porosity and other defects; 2. A higher process yield, reduce the amount of risers, and ensure production costs; 3. The appearance contour size of the casting should meet the requirements of the drawing.

[0004] For the first two items, MAGMA process simulation can be used to solve such problems during technical process design. However, the third item requires operators to have high technical skills to meet the casting appearance contour size, but this manual operation is time-consuming and labor-intensive and consumes a large amount of acetylene, resulting in increased costs.

[0005] Therefore, in order to solve the above problems, a gas cutting tool for removing the pouring and rising mouth of bracket-type castings is provided. Utility Model Content

[0006] The utility model provides a gas cutting tool for removing the pouring opening of a bracket-like casting in order to solve the problem that manual operation is time-consuming and labor-intensive and that a large amount of acetylene is used, resulting in increased costs.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] The utility model provides a gas cutting tool for removing the pouring riser of a bracket-type casting, comprising a workbench, a movable vehicle is arranged on the workbench, and a cutting component with adjustable height is arranged on the vehicle;

[0009] A guide rail, the guide rail is fixed on the workbench, and the traveling vehicle moves along the guide rail;

[0010] A placing component, the placing component places the iron casting, the placing component is the first fixture or the second fixture, and the placing component is located on one side of the guide rail, and the placing component is also fixed on the workbench;

[0011] The workbench is provided with a material dropping trough, and the material dropping trough is located below the cutting assembly;

[0012] The first fixture is a block structure, and the upper surface of the first fixture is concave downward to form a placement groove for placing the iron casting;

[0013] The cutting assembly comprises two cutting parts with adjustable cutting head spacing, and the two cutting parts are located above the blanking chute.

[0014] In the technical solution, the cutting assembly further comprises a fixing part, the fixing part fixes the cutting part, the fixing part comprises a sliding block, the sliding block is slidably connected to the surface of the positioning rod, the positioning rod is vertically fixed to the traveling vehicle, a fixing threaded rod arranged in the horizontal direction penetrates the sliding block, and the fixing threaded rod is threadedly connected to the sliding block;

[0015] One end of the fixed threaded rod is fixed to the surface of the positioning rod, and the other end is fixed to the hand wheel. Two limit plates are arranged on the sliding block, one of which is fixed to the sliding block, and the limit plate is threadedly connected with a limit bolt, and the limit bolt passes through the limit plate and is threadedly connected to the limit plate;

[0016] Another of the limit plates is penetrated by a limit bolt, and a hexagonal hole is formed on the surface of the nut on the limit bolt;

[0017] The two cutting parts are clamped between the two limiting plates.

[0018] In the present technical solution, the cutting part includes a hard connecting sleeve, which is sleeved on the surface of a delivery pipe for transporting cutting fuel. One end of the delivery pipe is connected to a fuel container, and the other end of the delivery pipe is fixed with a cutting head with an output port set downward. The two cutting parts are arranged on the same plane.

[0019] In this technical solution, the ends of the cutting heads on the two cutting parts are at the same height.

[0020] In the present technical solution, the second fixture includes two symmetrically arranged limit vertical plates, which together form a placement cavity for placing the iron casting, and a plurality of fixing parts with adjustable fixed sizes are arranged along the length direction of the limit vertical plates.

[0021] In the present technical solution, the fixing part includes two driving threaded rods, the threads on the two driving threaded rods have opposite rotation directions, the two driving threaded rods correspond to two limit vertical plates respectively, and are located at the bottom of the limit vertical plates, the two driving threaded rods are connected by a transmission rod, the surface of the driving threaded rod is sleeved with a movable ring threadedly connected to it, the top of the movable ring is fixed with a connecting vertical rod, the connecting vertical rod passes through the workbench through a through groove and extends to the top of the workbench, the top of the connecting vertical rod is fixed with a connecting rod arranged in a horizontal direction, the connecting rod passes through the corresponding limit vertical plate and extends into the placement cavity, and the end of the connecting rod is fixed with a limit plate that presses against the surface of the iron casting.

[0022] In the technical solution, a turntable is fixed to the end of one of the driving threaded rods on the fixing portion.

[0023] In the technical solution, a limiting portion for limiting the rotation of the movable ring is fixed on the movable ring.

[0024] In the present technical solution, the limiting part includes a guide ring, which is connected to the movable ring, and the guide ring is slidably sleeved on the guide rod. The guide rod and the driving threaded rod are arranged parallel to each other, and the guide rods between two adjacent fixed parts are connected by a fixed rod, and one of the guide rods is fixedly connected to the workbench by the fixed rod.

[0025] In the technical solution, two or more fixing rings are sleeved on the transmission rod, and the fixing rings are fixed on the workbench through rods.

[0026] In the technical solution, it also includes an angle adjustment portion, which is arranged between the second fixture and the blanking chute;

[0027] The angle adjustment part comprises a placement plate, which is arranged on the upper part of the workbench, and two connection blocks are arranged on the bottom side wall of the placement plate, and the bottom end of the connection block is rotatably connected to a lifting rod;

[0028] The lifting rod comprises an upper rod and a lower rod, the upper rod is rotatably connected to the connecting block, a self-rotating cavity is provided at the bottom of the upper rod, a self-rotating block which can rotate is arranged inside the self-rotating cavity, the self-rotating block is connected to the lower rod, the lower rod passes through the workbench, a threaded sleeve fixed on the workbench is sleeved on the surface of the lower rod, and the lower rod and the threaded sleeve are connected by threaded engagement;

[0029] One of the connection blocks is slidably connected to the placement plate, and the other connection block is fixed on the bottom side wall of the placement plate.

[0030] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0031] The positive and progressive effects of the utility model are:

[0032] The operation is simple and the positioning is adjustable. This tool can be used to remove the riser for bracket castings of the same type but different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0035] Figure 3 This is a side view of the structure of the utility model;

[0036] Figure 4 This is a schematic diagram of the top view structure of the utility model;

[0037] Figure 5 It is a side view structural schematic diagram of the second fixture of the utility model;

[0038] Figure 6 It is a schematic diagram of the top view of the second fixture of the utility model;

[0039] Figure 7 It is a schematic structural diagram of the positional relationship between the driving threaded rod and the limiting part of the utility model.

[0040] Description of Reference Numerals

[0041] 1. Workbench; 11. Blanking chute; 12. Guide rail; 13. Through slot;

[0042] 2. The first fixture;

[0043] 3. Iron castings; 31. Riser;

[0044] 4. Traveling vehicle; 41. Traveling wheel; 42. Positioning rod;

[0045] 5. Installation assembly; 51. Sliding block; 52. Hand wheel; 521. Fixed threaded rod; 53. Limit bolt; 531. Hexagonal hole; 54. Connecting sleeve; 541. Delivery pipe; 542. Cutting head; 55. Limit plate;

[0046] 6. Second fixture; 61. Position-limiting vertical plate; 62. Driving threaded rod; 621. Turntable; 622. Transmission rod; 63. Moving ring; 64. Connecting vertical rod; 65. Connecting rod; 66. Position-limiting plate; 67. Guide ring; 68. Guide rod; 69. Fixed rod;

[0047] 7. Placement plate; 71. Connection block; 72. Lifting rod; 73. Threaded sleeve. DETAILED DESCRIPTION

[0048] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0049] like Figure 1 and Figure 2 As shown, a gas cutting tool for removing the pouring riser of a bracket-type casting comprises a workbench 1, on which a movable vehicle 4 is arranged, and on which a cutting component with adjustable height is arranged;

[0050] A guide rail 12, wherein the guide rail 12 is fixed on the workbench 1, and the traveling vehicle 4 moves along the guide rail 12;

[0051] A placement component, the placement component places the iron casting 3, the placement component is the first fixture 2 or the second fixture 6, and the placement component is located on one side of the guide rail 12, and the placement component is also fixed on the workbench 1;

[0052] The workbench 1 is provided with a material drop chute 11, and the material drop chute 11 is located below the cutting assembly;

[0053] The first fixture 2 is a block structure, and the upper surface of the first fixture 2 is concave downward to form a placement groove for placing the iron casting 3;

[0054] The cutting assembly includes two cutting heads 542 with adjustable spacing, the two cutting parts are located above the blanking chute 11, and the cutting assembly is cut by acetylene.

[0055] The traveling wheels 41 at the bottom of the traveling vehicle 4 are engaged with the guide rails 12 .

[0056] The cutting head 542 is started, and then the traveling vehicle 4 is pushed, so that the cutting head 542 passes through the two sides where the riser 31 is connected to the iron casting 3, so as to cut the riser 31.

[0057] Place the bracket casting on the first fixture 2 or the second fixture 6, adjust the positioning, turn on the acetylene, and manually push the walking vehicle 4 to complete the gas cutting riser 31 operation, which is simple and convenient. The distance between the oxyacetylene flames is adjustable, which can be used for bracket castings of the same type with different inner sizes.

[0058] Embodiment 1

[0059] As one of the embodiments of the present technical solution, the cutting assembly further includes a fixing portion, the fixing portion fixing the cutting portion, the fixing portion including a sliding block 51, the sliding block 51 is slidably connected to the surface of the positioning rod 42, the positioning rod 42 is vertically fixed to the traveling vehicle 4, the sliding block 51 is penetrated by a fixed threaded rod 521 arranged in the horizontal direction, and the fixed threaded rod 521 is threadedly connected to the sliding block 51;

[0060] One end of the fixed threaded rod 521 is fixed to the surface of the positioning rod 42 , and the other end is fixed to the hand wheel 52 .

[0061] When in use, the fixed threaded rod 521 is driven to rotate by the hand wheel 52, and the fixed threaded rod 521 translates inside the sliding block 51 during the rotation process. When the sliding block 51 needs to move on the positioning rod 42, the fixed threaded rod 521 is separated from the surface of the positioning rod 42. When the position of the sliding block 51 on the positioning rod 42 needs to be fixed, the fixed threaded rod 521 is pressed against the surface of the positioning rod 42, thereby adjusting the height of the sliding block 51, thereby adjusting the height of the cutting portion to facilitate cutting of the riser 31.

[0062] Furthermore, two limit plates 55 are provided on the sliding block 51, one of the limit plates 55 is fixed on the sliding block 51, and the limit bolt 53 is threadedly connected to the limit plate 55, and the limit bolt 53 passes through the limit plate 55 and is threadedly connected to the limit plate 55;

[0063] The other limiting plate 55 is penetrated by the limiting bolt 53, and the nut surface of the limiting bolt 53 is provided with a hexagonal hole 531;

[0064] The two cutting parts are clamped between the two limiting plates 55 .

[0065] Specifically, the cutting part includes a hard connecting sleeve 54, which is sleeved on the surface of a delivery pipe 541 for transporting cutting fuel. The delivery pipe 541 is also made of a hard material. One end of the delivery pipe 541 is connected to a fuel container through a hose, and the other end of the delivery pipe 541 is fixed with a cutting head 542 with an output port downwardly disposed. The two cutting parts are disposed on the same plane, and the two connecting sleeves 54 between the two limit plates 55 are respectively located at the upper and lower parts.

[0066] The cutting heads 542 on the two cutting portions terminate at the same height.

[0067] In this embodiment, the limiting bolt 53 is rotated so that the limiting plate 55 no longer presses on the surfaces of the two connecting sleeves 54, and then the positions of the two connecting sleeves 54 are adjusted to adjust the distance between the two cutting heads 542 to adapt to risers 31 of different sizes.

[0068] After the adjustment is completed, the limiting bolt 53 is reversed so that the two limiting plates 55 are pressed against each other under the restriction of the limiting bolt 53 , thereby fixing the connecting sleeve 54 .

[0069] Embodiment 2

[0070] As another embodiment of the present technical solution, the second fixture 6 includes two symmetrically arranged limit vertical plates 61, and the two limit vertical plates 61 together form a placement cavity for placing the iron casting 3. A plurality of fixed parts with adjustable fixed sizes are arranged along the length direction of the limit vertical plates 61.

[0071] The fixing part includes two driving threaded rods 62, and the threads on the two driving threaded rods 62 have opposite rotation directions. The two driving threaded rods 62 correspond to two limit vertical plates 61 respectively and are located at the bottom of the limit vertical plates 61. The two driving threaded rods 62 are connected by a transmission rod 622. A moving ring 63 threadedly connected to the driving threaded rod 62 is sleeved on the surface of the driving threaded rod 62. A connecting vertical rod 64 is fixed to the top of the moving ring 63. The connecting vertical rod 64 passes through the workbench 1 through the through groove 13 and extends to the top of the workbench 1. A connecting rod 65 arranged in the horizontal direction is fixed to the top of the connecting vertical rod 64. The connecting rod 65 passes through the corresponding limit vertical plates 61 and extends to the placement cavity. A limiting plate 66 that abuts against the surface of the iron casting 3 is fixed to the end of the connecting rod 65.

[0072] A rotating disk 621 is fixed to the end of one of the driving threaded rods 62 on the fixing portion.

[0073] In this embodiment, the iron casting 3 with the required cutting riser 31 is placed in the placement cavity, and then the turntable 621 on different fixing parts is rotated in turn. The turntable 621 drives the two driving threaded rods 62 to rotate. During the self-rotation of the driving threaded rod 62, the moving ring 63 on its surface moves on the surface of the driving threaded rod 62 without generating self-rotation. Since the two driving threaded rods 62 on the same fixing part have opposite thread rotation directions, when the two driving threaded rods 62 rotate in the same direction, the two moving rings 63 on the two driving threaded rods 62 approach each other. The moving ring 63 drives the limit plate 66 to move by connecting the vertical rod 64 and the connecting rod 65, so that the two limit plates 66 approach each other, thereby realizing single-point fixation of the iron casting 3.

[0074] Repeat the above steps in sequence, so that two or more fixing parts can perform multi-point fixing on the iron casting 3, which is convenient for fixing the iron casting 3 of different geometric shapes and sizes, and improves the application range of the cutting tool.

[0075] A limiting portion for limiting the rotation of the movable ring 63 is fixed on the movable ring 63 .

[0076] Furthermore, the limiting portion includes a guide ring 67, which is interconnected with the movable ring 63, and the guide ring 67 is slidably sleeved on a guide rod 68. The guide rod 68 and the driving threaded rod 62 are arranged parallel to each other, and the guide rods 68 between two adjacent fixed portions are connected by a fixing rod 69, and one of the guide rods 68 is fixedly connected to the workbench 1 via the fixing rod 69.

[0077] Two or more fixing rings are sleeved on the transmission rod 622 , and the fixing rings are fixed on the workbench 1 through rods.

[0078] The drive threaded rod 62 is fixed.

[0079] Embodiment 3

[0080] This embodiment is derived on the basis of the second embodiment, and further comprises an angle adjustment portion, wherein the angle adjustment portion is arranged between the second fixture 6 and the blanking chute 11;

[0081] The angle adjustment part includes a placement plate 7, which is arranged on the upper part of the workbench 1. Two connecting blocks 71 are arranged on the bottom side wall of the placement plate 7. The bottom end of the connecting block 71 is rotatably connected to a lifting rod 72.

[0082] The lifting rod 72 includes an upper rod and a lower rod, the upper rod is rotatably connected to the connecting block 71, a self-rotating cavity is provided at the bottom of the upper rod, a self-rotating block is provided inside the self-rotating cavity, the self-rotating block is connected to the lower rod, the lower rod passes through the workbench 1, the surface of the lower rod is sleeved with a threaded sleeve 73 fixed on the workbench 1, and the lower rod and the threaded sleeve 73 are connected by threaded engagement;

[0083] One of the connection blocks 71 is slidably connected to the placement plate 7 to facilitate adjustment of the tilt angle of the placement plate 7 , and the other connection block 71 is fixed to the bottom side wall of the placement plate 7 .

[0084] In this embodiment, the lifting rod 72 is rotated, and the lower rod in the lifting rod 72 rotates in the inner cavity of the threaded sleeve 73, so that the lifting rod 72 is lifted and lowered in the vertical direction, thereby adjusting the height of the placement plate 7. By adjusting the height of the two lifting rods 72, the inclination angle of the placement plate 7 can be adjusted to make it more closely fit the surface of the iron casting 3.

[0085] The end of the iron casting 3 where the riser 31 is located is lifted up by a placement plate 7 whose height can be adjusted, so that the riser 31 is protruded, which facilitates the cutting of the riser 31 .

[0086] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A gas cutting tool for removing the pouring and rising mouth of a bracket-type casting, comprising a workbench (1), on which a movable vehicle (4) is arranged, characterized in that: The traveling vehicle (4) is provided with a cutting assembly with adjustable height; A guide rail (12), wherein the guide rail (12) is fixed on the workbench (1), and the traveling vehicle (4) moves along the guide rail (12); A placement component, the placement component places the iron casting (3), the placement component is the first fixture (2) or the second fixture (6), and the placement component is located on one side of the guide rail (12), and the placement component is also fixed on the workbench (1); The workbench (1) is provided with a material dropping trough (11), and the material dropping trough (11) is located below the cutting assembly; The first jig (2) is a block-shaped structure, and the upper surface of the first jig (2) is recessed downward to form a placement groove for placing the iron casting (3); The cutting assembly comprises two cutting heads (542) with adjustable spacing between the two cutting parts, and the two cutting parts are located above the blanking chute (11).

2. The pneumatic cutting tool for removing the pouring mouth of a bracket type casting according to claim 1, characterized in that: The cutting assembly further comprises a fixing portion, the fixing portion fixing the cutting portion, the fixing portion comprising a sliding block (51), the sliding block (51) being slidably connected to the surface of a positioning rod (42), the positioning rod (42) being vertically fixed to the traveling vehicle (4), the sliding block (51) being penetrated by a fixing threaded rod (521) arranged in a horizontal direction, the fixing threaded rod (521) being threadedly connected to the sliding block (51); One end of the fixed threaded rod (521) is fixed to the surface of the positioning rod (42), and the other end is fixed to the hand wheel (52). The sliding block (51) is provided with two limit plates (55), one of which is fixed to the sliding block (51), and a limit bolt (53) is threadedly connected to the limit plate (55). The limit bolt (53) passes through the limit plate (55) and is threadedly connected to the limit plate (55). The other limiting plate (55) is penetrated by a limiting bolt (53); The two cutting parts are clamped between the two limiting plates (55).

3. The gas cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 2, characterized in that: The cutting part comprises a hard connecting sleeve (54), the connecting sleeve (54) being sleeved on the surface of a delivery pipe (541) for delivering cutting fuel, one end of the delivery pipe (541) being externally connected to a fuel container, and the other end of the delivery pipe (541) being fixed with a cutting head (542) with an output port arranged downward, and the two cutting parts being arranged on the same plane.

4. The pneumatic cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 3, characterized in that: The ends of the cutting heads (542) on the two cutting parts are at the same height.

5. The gas cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 1, characterized in that: The second fixture (6) comprises two symmetrically arranged limiting vertical plates (61), the two limiting vertical plates (61) together enclosing a placement cavity for placing the iron casting (3), and a plurality of fixing portions whose fixed sizes can be adjusted are arranged along the length direction of the limiting vertical plates (61).

6. The gas cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 5, characterized in that: The fixing part comprises two driving threaded rods (62), the threads on the two driving threaded rods (62) are in opposite directions, the two driving threaded rods (62) respectively correspond to two limiting vertical plates (61) and are located at the bottom of the limiting vertical plates (61), the two driving threaded rods (62) are connected by a transmission rod (622), the surface of the driving threaded rod (62) is sleeved with a moving ring (63) threadedly connected thereto, the top of the moving ring (63) is fixed with a connecting vertical rod (64), the connecting vertical rod (64) passes through the workbench (1) through a through groove (13) and extends to the top of the workbench (1), the top of the connecting vertical rod (64) is fixed with a connecting rod (65) arranged in a horizontal direction, the connecting rod (65) passes through the corresponding limiting vertical plates (61) and extends into the placement cavity, and the end of the connecting rod (65) is fixed with a limiting plate (66) that abuts against the surface of the iron casting (3).

7. The gas cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 6, characterized in that: A rotating disk (621) is fixed to the end of one of the driving threaded rods (62) on the fixing portion.

8. The pneumatic cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 6, characterized in that: A limiting portion for limiting the rotation of the movable ring (63) is fixed on the movable ring (63).

9. The gas cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 8, characterized in that: The limiting portion comprises a guide ring (67), the guide ring (67) and the movable ring (63) are connected to each other, the guide ring (67) is slidably sleeved on a guide rod (68), the guide rod (68) and the driving threaded rod (62) are arranged parallel to each other, the guide rods (68) between two adjacent fixed portions are connected by a fixed rod (69), and one of the guide rods (68) is fixedly connected to the workbench (1) by the fixed rod (69).

10. The gas cutting tool for removing the pouring and rising mouth of a bracket type casting as claimed in claim 5, characterized in that: It also includes an angle adjustment portion, which is arranged between the second fixture (6) and the blanking chute (11); The angle adjustment portion comprises a placement plate (7), the placement plate (7) being arranged on the upper part of the workbench (1), two connection blocks (71) being arranged on the bottom side wall of the placement plate (7), and the bottom end of the connection block (71) being rotatably connected to a lifting rod (72); The lifting rod (72) comprises an upper rod and a lower rod, the upper rod is rotatably connected to the connecting block (71), a self-rotating cavity is provided at the bottom of the upper rod, a self-rotating block is provided inside the self-rotating cavity, the self-rotating block is connected to the lower rod, the lower rod passes through the workbench (1), a threaded sleeve (73) fixed on the workbench (1) is sleeved on the surface of the lower rod, and the lower rod and the threaded sleeve (73) are connected by threaded engagement; One of the connection blocks (71) is slidably connected to the placement plate (7), and the other connection block (71) is fixed to the bottom side wall of the placement plate (7).

Images