Automatic cutting device for round casting head

Abstract

The application belongs to the field of casting head cutting, and particularly relates to a circular casting head automatic cutting device, which comprises a base, a supporting arm, a supporting top plate, sliding supports, a contact component, a first driving motor, a supporting component, a second driving motor and a cutting knife, wherein the supporting top plate is arranged above the base through the supporting arm, the sliding supports are arranged in multiple, the multiple contact components are arranged on one side of the multiple sliding supports towards the center of the base, the first driving motor is installed on the supporting top plate, the output shaft line of the first driving motor coincides with the center of the circumferential arrangement of the multiple sliding supports, the second driving motor is installed on the supporting component, the cutting knife is connected with the output end of the second driving motor, and the second driving motor and the cutting knife are located on one side of the output shaft line of the first driving motor. Thus, the problem that the existing fixed clamp has a small application range and needs to be repeatedly replaced or re-adjusted for different specifications of castings is solved.

Description

Technical Field

[0001] This invention belongs to the field of casting riser cutting, and in particular relates to an automatic cutting device for circular casting risers. Background Technology

[0002] After the casting of existing circular castings is completed, it is usually necessary to cut off the risers distributed along the circumference of the casting. Existing technologies mostly use manual hand-held cutting equipment, fixed cutting machines, or the method of adjusting the position of the casting one by one through a clamp so that the cutting blade is aligned with each riser in turn and the cutting is completed.

[0003] However, existing cutting devices are not well adapted to circular castings of different diameters and heights. They usually require repeated adjustments to the fixture position or re-clamping of the casting. It is difficult to keep the casting stably positioned while the cutting blade continuously switches the cutting position along the circumference of the casting, resulting in cumbersome and inefficient riser cutting operations. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the prior art mentioned in the background section, namely, the poor adaptability of existing cutting devices to circular castings of different diameters and heights, the need to repeatedly adjust the position of the clamps or re-clamp the castings, the difficulty in maintaining stable positioning of the castings while continuously switching the cutting position of the cutting blade along the circumference of the castings, and the resulting cumbersome and inefficient riser cutting operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cutting device for risers of circular castings, comprising a base, a support arm, a supporting top plate, sliding supports, a contact assembly, a first drive motor, a support assembly, a second drive motor, and a cutting blade, wherein the supporting top plate is disposed above the base via the support arm; multiple sliding supports are provided, spaced apart circumferentially along the base, with both ends of each sliding support slidably connected to the base and the support arm radially along the base; multiple contact assemblies are provided, each disposed on one side of the multiple sliding supports facing the center of the base; the first drive motor is mounted on the supporting top plate, and the output axis of the first drive motor coincides with the circumferential center of the multiple sliding supports; the support assembly is connected to the output end of the first drive motor; the second drive motor is mounted on the support assembly; and the cutting blade is connected to the output end of the second drive motor, with the second drive motor and the cutting blade located on one side of the output axis of the first drive motor.

[0006] Specifically, multiple sliding supports are equally spaced along the circumference of the base. The top of the base and the bottom of the support arm are respectively provided with sliding grooves extending radially along the base. The sliding grooves on the base correspond vertically to the sliding grooves on the support arm. The two ends of the sliding support are respectively slidably engaged in the two vertically corresponding sliding grooves.

[0007] Specifically, it also includes multiple drive components, each of which corresponds one-to-one with a multiple sliding support. Each drive component includes a hydraulic cylinder and a drive arm. The drive arm is fixedly connected to the outer wall of the support arm, and the hydraulic cylinder is mounted on the drive arm. The output end of the hydraulic cylinder is fixedly connected to the corresponding sliding support.

[0008] Specifically, the abutment assembly includes a sliding sleeve, a mounting head, an abutment panel, and an abutment pad. The sliding sleeve is slidably fitted vertically onto the outer wall of the sliding support. The mounting head is fixedly connected to the side of the sliding sleeve facing the center of the base. The abutment panel is fixedly connected to the mounting head. The abutment pad is fixedly connected to the side of the abutment panel facing the center of the base.

[0009] Specifically, the sliding sleeve is threaded with a limit bolt, and the sliding support is provided with a plurality of limit holes spaced vertically. The end of the limit bolt passes through the sliding sleeve and is inserted into one of the limit holes.

[0010] Specifically, the support assembly includes a support arm, an adjusting sleeve, a connecting arm, and a support base. The top of the support arm is fixedly connected to the output end of the first drive motor. The adjusting sleeve is slidably fitted vertically onto the outer wall of the support arm. The connecting arm is arranged in a direction perpendicular to the support arm. One end of the connecting arm is fixedly connected to the adjusting sleeve. The support base is fixedly connected to the other end of the connecting arm. The second drive motor is mounted on the support base. The output end of the second drive motor passes through the support base and is fixedly connected to the cutting blade.

[0011] Specifically, the adjusting sleeve is threaded with a limit bolt, and the support arm is provided with a plurality of limit holes spaced vertically. The end of the limit bolt passes through the adjusting sleeve and is inserted into one of the limit holes.

[0012] Specifically, a limiting groove is provided at the bottom of the supporting top plate, the limiting groove is arranged around the output axis of the first drive motor, the connecting arm is fixedly connected to a guide arm, the guide arm extends toward the supporting top plate, and the end of the guide arm is slidably engaged in the limiting groove.

[0013] Specifically, it also includes a dust collection assembly, which includes a dust collection housing, a fan, a connector, a dust collection slot, and a connecting hose. The dust collection housing is installed on the supporting top plate, the fan is installed on the dust collection housing and communicates with the inner cavity of the dust collection housing, the connector is installed on the outer wall of the dust collection housing and communicates with the inner cavity of the dust collection housing, the connector has multiple inlets, multiple dust collection slots are provided, and the multiple dust collection slots are respectively opened on the inner wall of the multiple sliding supports facing the center of the base, and multiple connecting hoses are provided. The multiple connecting hoses, multiple inlets, and multiple dust collection slots correspond one-to-one. One end of each connecting hose is connected to the corresponding inlet, and the other end of each connecting hose is connected to the side wall of the corresponding sliding support and communicates with the corresponding dust collection slot.

[0014] Compared with existing technologies, the advantages of this automatic riser cutting device for circular castings are: 1. This invention uses a circumferential multi-point positioning mechanism consisting of a base, support arm, sliding support, drive assembly, and contact assembly to achieve synchronous adjustment of multiple sliding supports along the radial direction of the base, and to stably position circular castings of different diameters and edge heights by adjusting the vertical position of the contact assembly. This solves the problem that existing fixed fixtures have a limited range of applications and require repeated replacement or readjustment of fixtures for castings of different specifications.

[0015] 2. The present invention uses a rotary cutting mechanism consisting of a first drive motor, a support assembly, a second drive motor, and a cutting blade to achieve the adjustment of the cutting height of the cutting blade and its circumferential movement around the center of the circular casting. This allows the cutting blade to move sequentially to different riser positions while the casting is kept fixed, thereby solving the problem that existing cutting methods require repeated rotation, handling, or re-clamping of the casting, resulting in cumbersome operation and low cutting efficiency.

[0016] 3. The present invention uses a dust collection mechanism consisting of a dust collection housing, a fan, a connector, a dust collection trough, and a connecting hose to enable multiple dust collection troughs to move synchronously with the sliding support to the cutting area of ​​circular castings of different diameters, and to concentrate and transport the dust generated during the cutting process into the dust collection housing. This solves the problems that fixed dust collection positions are difficult to adapt to castings of different specifications, and that cutting dust cannot be collected in time and affects the working environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an automatic riser cutting device for circular castings provided by the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an automatic riser cutting device for circular castings provided by the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the drive assembly of an automatic cutting device for risers of circular castings provided by the present invention; Figure 4 This is a schematic diagram of the bottom structure of an automatic cutting device for risers of circular castings provided by the present invention; Figure 5 This invention provides an automatic cutting device for risers of circular castings. Figure 2 A magnified structural diagram of part A in the middle; Figure 6 This invention provides an automatic cutting device for risers of circular castings. Figure 3 A magnified structural diagram of section B in the middle.

[0018] As shown in the figure: 1. Base; 2. Support arm; 3. Support top plate; 31. Limiting groove; 32. Slide groove; 4. Sliding support; 5. Abutment component; 51. Sliding sleeve; 52. Mounting head; 53. Abutment panel; 54. Abutment pad; 6. Drive assembly; 61. Hydraulic cylinder; 62. Drive arm; 7. First drive motor; 8. Support assembly; 81. Support arm; 82. Adjusting sleeve; 83. Connecting arm; 831. Guide arm; 84. Support base; 9. Second drive motor; 10. Cutting blade; 11. Dust collection assembly; 111. Dust collection housing; 112. Fan; 113. Connector; 114. Dust collection tray; 115. Connecting hose. Detailed Implementation

[0019] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] like Figures 1-6As shown, this application proposes an automatic cutting device for risers of circular castings, which may include a base 1, a support arm 2, a support top plate 3, sliding supports 4, abutment components 5, a first drive motor 7, a support component 8, a second drive motor 9, and a cutting blade 10. The support top plate 3 is disposed above the base 1 via the support arm 2. Multiple sliding supports 4 are provided, and the multiple sliding supports 4 are spaced apart along the circumference of the base 1. The two ends of each sliding support 4 are respectively slidably connected to the base 1 and the support arm 2 along the radial direction of the base 1. Multiple abutment components 5 are provided, and the multiple abutment components 5 are respectively disposed on the side of the multiple sliding supports 4 facing the center of the base 1. The first drive motor 7 is mounted on the support top plate 3, and the output axis of the first drive motor 7 coincides with the circumferential center of the multiple sliding supports 4. The support component 8 is connected to the output end of the first drive motor 7. The second drive motor 9 is mounted on the support component 8. The cutting blade 10 is connected to the output end of the second drive motor 9, and the second drive motor 9 and the cutting blade 10 are located on one side of the output axis of the first drive motor 7.

[0021] It should be noted that, in this embodiment, the base 1, support arm 2, and supporting top plate 3 together constitute the load-bearing frame of the device, and the center of the base 1 forms a placement area for the circular casting. Multiple sliding supports 4 correspond to different positioning positions on the circumference of the circular casting, and each contact component 5 is arranged towards the center of the base 1. The support component 8 extends from the output end of the first drive motor 7 towards the base 1, causing the second drive motor 9 and the cutting blade 10 to be offset relative to the output axis of the first drive motor 7, thereby forming a cutting motion path around the center of the base 1.

[0022] Specifically, after placing the circular casting to be cut in the center of the base 1, multiple sliding supports 4 are adjusted radially so that each contact component 5 abuts against the circumferential edge of the circular casting to determine the position of the circular casting on the base 1. Then, the second drive motor 9 is started, which drives the cutting blade 10 to rotate. Then, the first drive motor 7 is started, which drives the second drive motor 9 and the cutting blade 10 to move around the circular casting through the support component 8. This allows the cutting blade 10 to pass through different riser positions on the circumference of the circular casting in sequence. This solves the problem that existing cutting devices require repeated adjustments or re-clamping of the circular casting, making it difficult to continuously switch cutting positions while maintaining the stability of the casting.

[0023] Furthermore, such as Figures 1-6 As shown, multiple sliding supports 4 are equally spaced along the circumference of the base 1. The top of the base 1 and the bottom of the support arm 2 are respectively provided with sliding grooves 32 extending radially along the base 1. The sliding grooves 32 on the base 1 and the sliding grooves 32 on the support arm 2 are vertically corresponding. The two ends of the sliding support 4 are respectively slidably engaged in the two vertically corresponding sliding grooves 32.

[0024] It should be noted that the multiple sliding supports 4 described in this embodiment are located in different radial directions with the center of the base 1 as the center, and adjacent sliding supports 4 maintain the same circumferential spacing. The two corresponding upper and lower sliding grooves 32 jointly define the moving direction of the sliding support 4. The upper and lower ends of the sliding support 4 are respectively placed in the corresponding sliding grooves 32, so that the sliding support 4 maintains a vertical posture during movement and reduces the deflection of the sliding support 4 around its own end.

[0025] Specifically, according to the diameter of the circular casting to be cut, multiple sliding supports 4 are moved closer to or further away from the center of the base 1 along the corresponding slide grooves 32. The upper and lower ends of the sliding supports 4 move synchronously within the corresponding upper and lower slide grooves 32, so that each contact component 5 can approach the edge of the casting from multiple equally spaced positions in the circumference of the circular casting. This allows circular castings of different diameters to be positioned at multiple points in the circumference on the base 1, solving the problem that existing fixed fixtures have a single applicable size and require reconfiguration of the fixture after changing the casting specifications.

[0026] Furthermore, such as Figures 1-6 As shown, it also includes multiple drive components 6, each corresponding to a multiple sliding support 4. Each drive component 6 includes a hydraulic cylinder 61 and a drive arm 62. The drive arm 62 is fixedly connected to the outer wall of the support arm 2, and the hydraulic cylinder 61 is installed on the drive arm 62. The output end of the hydraulic cylinder 61 is fixedly connected to the corresponding sliding support 4.

[0027] It should be noted that the drive arm 62 described in this embodiment is located on the outer side of the corresponding sliding support 4 and provides an installation position for the hydraulic cylinder 61. The output direction of the hydraulic cylinder 61 corresponds to the extension direction of the corresponding slide groove 32, so that when the output end of the hydraulic cylinder 61 acts on the sliding support 4, the sliding support 4 can move radially along the base 1. Multiple hydraulic cylinders 61 correspond to different sliding supports 4 respectively, so as to adjust the contact position at different circumferential positions according to the outer contour of the circular casting.

[0028] Specifically, after the circular casting is placed on the base 1, the output ends of multiple hydraulic cylinders 61 respectively push the corresponding sliding supports 4 to move along the slide groove 32 toward the center of the base 1 until the abutting components 5 on each sliding support 4 contact the circumferential edge of the circular casting. After the cutting is completed, the output ends of the hydraulic cylinders 61 retract and drive the sliding supports 4 away from the circular casting. Thus, the positioning and depositioning of the circular casting can be completed by multiple drive components 6, solving the problem of cumbersome adjustment process and difficulty in coordinating the positions of each positioning point caused by manually moving the positioning components one by one.

[0029] Furthermore, such as Figures 1-6As shown, the abutment assembly 5 includes a sliding sleeve 51, a mounting head 52, an abutment panel 53, and an abutment pad 54. The sliding sleeve 51 is slidably fitted vertically onto the outer wall of the sliding support 4. The mounting head 52 is fixedly connected to the side of the sliding sleeve 51 facing the center of the base 1. The abutment panel 53 is fixedly connected to the mounting head 52. The abutment pad 54 is fixedly connected to the side of the abutment panel 53 facing the center of the base 1.

[0030] It should be noted that, in this embodiment, the sliding sleeve 51 is arranged around part of the outer wall of the sliding support 4, and the mounting head 52 extends from the sliding sleeve 51 toward the center of the base 1. The contact panel 53 can be configured as a planar structure or an arc-shaped structure according to the shape of the edge of the circular casting, and the contact pad 54 can be made of a material with elasticity and friction properties to adapt to the local unevenness of the edge of the casting blank and to avoid the contact panel 53 directly and rigidly contacting the surface of the circular casting.

[0031] Specifically, before installing the circular casting, the sliding sleeve 51 is adjusted vertically along the sliding support 4 so that the mounting head 52, the contact panel 53, and the contact pad 54 are moved to a height corresponding to the edge of the circular casting. When the sliding support 4 approaches the circular casting radially, the contact pad 54 first contacts the edge of the circular casting and transmits the force to the sliding sleeve 51 and the sliding support 4 through the contact panel 53 and the mounting head 52. This allows the contact assembly 5 to adapt to circular castings with different edge heights, solving the problem that the fixed height positioning structure is difficult to accurately contact circular castings with different thicknesses or different edge positions.

[0032] Furthermore, such as Figures 1-6 As shown, a limit bolt is threaded onto the sliding sleeve 51, and multiple limit holes are spaced vertically on the sliding support 4. The end of the limit bolt passes through the sliding sleeve 51 and is inserted into one of the limit holes.

[0033] It should be noted that the multiple limiting holes described in this embodiment are arranged along the length of the sliding support 4, and adjacent limiting holes correspond to different installation heights of the sliding sleeve 51. The sliding sleeve 51 is provided with a threaded structure that mates with the limiting bolt, with the end of the limiting bolt facing the sliding support 4, allowing it to form an insertion relationship with the limiting holes at different positions. After the limiting bolt is removed from the limiting hole, the sliding sleeve 51 can move along the sliding support 4.

[0034] Specifically, based on the height of the edge of the circular casting, the limiting bolt is first disengaged from the limiting hole on the sliding support 4, and then the sliding sleeve 51 is moved vertically. When the abutment panel 53 and the abutment pad 54 reach the corresponding height, the end of the limiting bolt is inserted into the limiting hole corresponding to that height, thereby restricting the sliding sleeve 51 from continuing to move relative to the sliding support 4. This ensures that the abutment component 5 remains in a stable position after the height adjustment is completed, solving the problem that cutting vibration may cause the abutment component 5 to shift along the sliding support 4, resulting in a change in the positioning state of the circular casting.

[0035] Furthermore, such as Figures 1-6 As shown, the support assembly 8 includes a support arm 81, an adjusting sleeve 82, a connecting arm 83, and a support base 84. The top of the support arm 81 is fixedly connected to the output end of the first drive motor 7. The adjusting sleeve 82 is slidably fitted onto the outer wall of the support arm 81 in a vertical direction. The connecting arm 83 is arranged in a direction perpendicular to the support arm 81. One end of the connecting arm 83 is fixedly connected to the adjusting sleeve 82. The support base 84 is fixedly connected to the other end of the connecting arm 83. The second drive motor 9 is mounted on the support base 84. The output end of the second drive motor 9 passes through the support base 84 and is fixedly connected to the cutting blade 10.

[0036] It should be noted that, in this embodiment, the support arm 81 extends downward along the output axis of the first drive motor 7, the adjusting sleeve 82 is sleeved on the outside of the support arm 81, and the connecting arm 83 extends from the adjusting sleeve 82 toward one side of the output axis of the first drive motor 7. The support base 84 provides an installation position for the second drive motor 9 and the cutting blade 10. The output end of the second drive motor 9 passes through the support base 84, so that the cutting blade 10 is located on one side of the support base 84 and corresponds to the riser position in the circumferential direction of the circular casting.

[0037] Specifically, based on the height of the riser of the circular casting, the adjusting sleeve 82 is adjusted along the support arm 81. The adjusting sleeve 82 drives the second drive motor 9 and the cutting blade 10 to rise and fall synchronously through the connecting arm 83 and the support seat 84. After the height adjustment is completed, the second drive motor 9 drives the cutting blade 10 to rotate. The first drive motor 7 drives the support arm 81, the adjusting sleeve 82, the connecting arm 83 and the support seat 84 to rotate around its output axis, so that the cutting blade 10 moves to different riser positions in sequence. This solves the problem that the fixed height cutting mechanism is difficult to adapt to different riser heights and requires repeated adjustment of the casting height.

[0038] Furthermore, such as Figures 1-6 As shown, a limit bolt is threaded onto the adjusting sleeve 82, and multiple limit holes are spaced vertically on the support arm 81. The end of the limit bolt passes through the adjusting sleeve 82 and is inserted into one of the limit holes.

[0039] It should be noted that the multiple limiting holes described in this embodiment are arranged vertically along the support arm 81 and correspond to different installation heights of the adjusting sleeve 82. The limiting bolts on the adjusting sleeve 82 are set towards the support arm 81. When the limiting bolts are removed from the limiting holes, the adjusting sleeve 82 can move along the outer wall of the support arm 81. When the limiting bolts are inserted into the limiting holes, a vertical position restriction is formed between the adjusting sleeve 82 and the support arm 81.

[0040] Specifically, when adjusting the height of the cutting blade 10, first, the limiting bolt is disengaged from the limiting hole on the support arm 81, and then the adjusting sleeve 82 is moved along the support arm 81. The adjusting sleeve 82 drives the connecting arm 83, the support seat 84, the second drive motor 9, and the cutting blade 10 to rise and fall synchronously. After the cutting blade 10 reaches the height corresponding to the riser, the limiting bolt is inserted into the corresponding limiting hole, thereby maintaining the cutting height of the cutting blade 10 and solving the problem that the vertical displacement of the support assembly 8 caused by vibration during the cutting process causes the cutting blade 10 to deviate from the root of the riser.

[0041] Furthermore, such as Figures 1-6 As shown, a limiting groove 31 is provided at the bottom of the supporting top plate 3. The limiting groove 31 is arranged around the output axis of the first drive motor 7. A guide arm 831 is fixedly connected to the connecting arm 83. The guide arm 831 extends toward the supporting top plate 3, and the end of the guide arm 831 is slidably engaged in the limiting groove 31.

[0042] It should be noted that the limiting groove 31 described in this embodiment can be a closed annular groove, the center of which corresponds to the output axis of the first drive motor 7. The guide arm 831 extends upward from the connecting arm 83, and the end of the guide arm 831 can be provided with a sliding part that matches the cross-section of the limiting groove 31, so that the guide arm 831 can move along the limiting groove 31, while restricting the connecting arm 83 from radially offset or swinging relative to the supporting top plate 3.

[0043] Specifically, when the first drive motor 7 drives the connecting arm 83 to rotate through the support arm 81, the end of the guide arm 831 slides synchronously along the limiting groove 31 at the bottom of the support top plate 3. The limiting groove 31 limits the circumferential motion path of the guide arm 831 and the connecting arm 83, so that the support base 84, the second drive motor 9 and the cutting blade 10 maintain stable movement around the output axis of the first drive motor 7. This solves the problem that the cutting mechanism is prone to swaying during rotation and cutting force after being installed on one side, resulting in deviations in the cutting positions of different risers.

[0044] Furthermore, such as Figures 1-6As shown, it also includes a dust collection assembly 11, which includes a dust collection housing 111, a fan 112, a connector 113, a dust collection slot 114, and a connecting hose 115. The dust collection housing 111 is installed on the supporting top plate 3. The fan 112 is installed on the dust collection housing 111 and communicates with the inner cavity of the dust collection housing 111. The connector 113 is installed on the outer wall of the dust collection housing 111 and communicates with the inner cavity of the dust collection housing 111. The connector 113 is provided with multiple inlets. Multiple dust collection slots 114 are provided. Multiple dust collection slots 114 are respectively opened on the inner wall of the side of multiple sliding supports 4 facing the center of the base 1. Multiple connecting hoses 115 are provided. Multiple connecting hoses 115, multiple inlets, and multiple dust collection slots 114 correspond one-to-one. One end of each connecting hose 115 is connected to the corresponding inlet, and the other end of each connecting hose 115 is connected to the side wall of the corresponding sliding support 4 and communicates with the corresponding dust collection slot 114.

[0045] It should be noted that, in this embodiment, the multiple dust collection slots 114 are respectively disposed on the side of the multiple sliding supports 4 facing the circular casting, and move radially with the sliding supports 4. The multiple input ports of the connector 113 correspond to the connecting hoses 115 at different positions, and each connecting hose 115 adopts a flexible tube body to adapt to the position change of the sliding support 4. The inner cavity of the dust collection housing 111 can be provided with a dust collection space for receiving cutting dust, and the air inlet side of the fan 112 is connected to the dust collection space.

[0046] Specifically, when the cutting blade 10 cuts the riser on the circumferential direction of the circular casting, the fan 112 is started, so that an airflow is formed inside the dust collection housing 111, the connector 113, the multiple connecting hoses 115 and the multiple dust collection grooves 114 towards the dust collection housing 111. The dust generated by cutting enters the dust collection grooves 114 on the inner wall of the sliding support 4 from different circumferential positions, and then enters the dust collection housing 111 in sequence through the connecting hoses 115 and the connector 113. When the sliding support 4 is radially adjusted according to the diameter of the casting, the dust collection grooves 114 move closer to or further away from the casting synchronously with the sliding support 4, and the connecting hoses 115 bend or extend accordingly. This solves the problem that the distance between the fixed dust collection port and the cutting position of castings of different diameters varies greatly, making it difficult to collect the cutting dust in time and affecting continuous cutting operations.

[0047] In summary, the working principle of this automatic riser cutting device for circular castings is as follows: First, the circular casting to be cut is placed in the center of the base 1. Based on the diameter and edge height of the circular casting, the restriction between the upper limit bolt of the sliding sleeve 51 and the upper limit hole of the sliding support 4 is released. The height of the sliding sleeve 51 is adjusted along the sliding support 4 so that the contact panel 53 and the contact pad 54 correspond to the edge height of the circular casting. Then, the limit bolt is inserted into the corresponding limit hole for fixation. Subsequently, multiple hydraulic cylinders 61 are activated, which push the corresponding sliding support 4 along the base 1 and the support arm 2. The slide 32 moves toward the center of the base 1, causing multiple abutment pads 54 to abut against the edge of the circular casting from different circumferential positions, thereby performing multi-point positioning of the circular casting. Based on the riser height, the restriction between the upper limit bolt of the adjusting sleeve 82 and the upper limit hole of the support arm 81 is released. The adjusting sleeve 82 moves along the support arm 81, and through the connecting arm 83 and the support base 84, the second drive motor 9 and the cutting blade 10 are driven to rise and fall synchronously. After the cutting blade 10 is adjusted to the position corresponding to the root of the riser, it is fixed by the limit bolt. During cutting, the second drive motor 9 drives the cutting blade 10 to rotate. The first drive motor 7 drives the second drive motor 9 and the cutting blade 10 to move around the circular casting via the support arm 81, adjusting sleeve 82, connecting arm 83, and support base 84. This causes the cutting blade 10 to move sequentially to different riser positions on the circumference of the circular casting for cutting. During this process, the end of the guide arm 831 slides along the limiting groove 31 at the bottom of the support top plate 3 to limit the movement path of the support assembly 8 and reduce the swing of the cutting blade 10. At the same time, the fan 112 is started, so that the dust generated by cutting passes through the dust suction groove 114 on the inner wall of multiple sliding supports 4, the connecting hose 115, and the connector 11. Multiple input ports of 3 enter the dust collection housing 111. After cutting, the hydraulic cylinder 61 drives the sliding support 4 away from the circular casting so that the casting can be removed. Thus, the radial adjustment of the sliding support 4, the height adjustment of the contact component 5, and the height adjustment of the support component 8 can be used to adapt to circular castings with different diameters, different edge heights, and different riser heights. While keeping the casting in a stable position, the cutting blade 10 can switch cutting positions along its circumference, avoiding repeated adjustment of the clamp or re-clamping of the casting. This solves the problems of poor adaptability, cumbersome operation, and low riser cutting efficiency of existing cutting devices.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic cutting device for risers of circular castings, characterized in that, It includes a base (1), a support arm (2), a supporting top plate (3), a sliding support (4), an abutment assembly (5), a first drive motor (7), a support assembly (8), a second drive motor (9), and a cutting blade (10), wherein, The supporting top plate (3) is positioned above the base (1) via the support arm (2); Multiple sliding supports (4) are provided, and the multiple sliding supports (4) are spaced apart along the circumference of the base (1). The two ends of each sliding support (4) are respectively slidably connected to the base (1) and the support arm (2) along the radial direction of the base (1). Multiple abutment components (5) are provided, and the multiple abutment components (5) are respectively provided on the side of the multiple sliding supports (4) facing the center of the base (1); The first drive motor (7) is mounted on the support top plate (3), and the output axis of the first drive motor (7) coincides with the circumferential arrangement center of the plurality of sliding supports (4); The support assembly (8) is connected to the output end of the first drive motor (7), the second drive motor (9) is mounted on the support assembly (8), the cutting blade (10) is connected to the output end of the second drive motor (9), and the second drive motor (9) and the cutting blade (10) are located on one side of the output axis of the first drive motor (7).

2. The automatic cutting device for risers of circular castings according to claim 1, characterized in that, Multiple sliding supports (4) are equally spaced along the circumference of the base (1). The top of the base (1) and the bottom of the support arm (2) are respectively provided with sliding grooves (32) extending radially along the base (1). The sliding grooves (32) on the base (1) correspond vertically to the sliding grooves (32) on the support arm (2). The two ends of the sliding support (4) are respectively slidably engaged in the two vertically corresponding sliding grooves (32).

3. The automatic cutting device for risers of circular castings according to claim 2, characterized in that, It also includes multiple drive components (6), each of which corresponds to a multiple sliding support (4). Each drive component (6) includes a hydraulic cylinder (61) and a drive arm (62). The drive arm (62) is fixedly connected to the outer wall of the support arm (2), and the hydraulic cylinder (61) is installed on the drive arm (62). The output end of the hydraulic cylinder (61) is fixedly connected to the corresponding sliding support (4).

4. The automatic cutting device for risers of circular castings according to claim 1, characterized in that, The contact assembly (5) includes a sliding sleeve (51), a mounting head (52), a contact panel (53), and a contact pad (54). The sliding sleeve (51) is slidably fitted onto the outer wall of the sliding support (4) in a vertical direction. The mounting head (52) is fixedly connected to the side of the sliding sleeve (51) facing the center of the base (1). The contact panel (53) is fixedly connected to the mounting head (52). The contact pad (54) is fixedly connected to the side of the contact panel (53) facing the center of the base (1).

5. The automatic cutting device for risers of circular castings according to claim 4, characterized in that, The sliding sleeve (51) is threaded with a limiting bolt, and the sliding support (4) is provided with a plurality of limiting holes at intervals along the vertical direction. The end of the limiting bolt passes through the sliding sleeve (51) and is inserted into one of the limiting holes.

6. The automatic cutting device for risers of circular castings according to claim 1, characterized in that, The support assembly (8) includes a support arm (81), an adjusting sleeve (82), a connecting arm (83), and a support base (84). The top of the support arm (81) is fixedly connected to the output end of the first drive motor (7). The adjusting sleeve (82) slides vertically onto the outer wall of the support arm (81). The connecting arm (83) is arranged in a direction perpendicular to the support arm (81). One end of the connecting arm (83) is fixedly connected to the adjusting sleeve (82). The support base (84) is fixedly connected to the other end of the connecting arm (83). The second drive motor (9) is mounted on the support base (84). The output end of the second drive motor (9) passes through the support base (84) and is fixedly connected to the cutting blade (10).

7. The automatic cutting device for risers of circular castings according to claim 6, characterized in that, The adjusting sleeve (82) is threaded with a limiting bolt, and the support arm (81) is provided with a plurality of limiting holes at intervals along the vertical direction. The end of the limiting bolt passes through the adjusting sleeve (82) and is inserted into one of the limiting holes.

8. The automatic cutting device for risers of circular castings according to claim 6, characterized in that, The bottom of the supporting top plate (3) is provided with a limiting groove (31), the limiting groove (31) is arranged around the output axis of the first drive motor (7), the connecting arm (83) is fixedly connected with a guide arm (831), the guide arm (831) extends toward the supporting top plate (3), and the end of the guide arm (831) is slidably engaged in the limiting groove (31).

9. The automatic cutting device for risers of circular castings according to claim 1, characterized in that, It also includes a dust collection assembly (11), which includes a dust collection housing (111), a fan (112), a connector (113), a dust collection groove (114), and a connecting hose (115). The dust collection housing (111) is installed on the supporting top plate (3), and the fan (112) is installed on the dust collection housing (111) and communicates with the inner cavity of the dust collection housing (111); The connector (113) is installed on the outer wall of the dust collection housing (111) and communicates with the inner cavity of the dust collection housing (111). The connector (113) is provided with multiple input ports. Multiple dust collection slots (114) are provided, and the multiple dust collection slots (114) are respectively opened on the inner wall of the side of the multiple sliding supports (4) facing the center of the base (1); Multiple connecting hoses (115) are provided, and the multiple connecting hoses (115), multiple inlets and multiple dust collection slots (114) correspond one-to-one. One end of each connecting hose (115) is connected to the corresponding inlet, and the other end of each connecting hose (115) is connected to the side wall of the corresponding sliding support (4) and connected to the corresponding dust collection slot (114).

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