A positioning device for cutting ductile iron

Abstract

The present invention provides a positioning device for ductile iron cutting, which includes a fixed seat and a clamping positioning unit. The fixed seat has a connecting shaft parallel to the length direction of the ductile iron. The clamping positioning unit is arranged on the fixed seat, and the clamping positioning unit includes: a first swing arm, a second swing arm, a first driving mechanism and a second driving mechanism. One end of the first swing arm is rotatably connected to the connecting shaft. One end of the second swing arm is rotatably connected to the connecting shaft. The first driving mechanism is connected to the first swing arm, and the first driving mechanism is used to drive the first swing arm to rotate in a direction close to the second swing arm with the connecting shaft as the axis. The second driving mechanism is connected to the second swing arm, and the second driving mechanism is used to drive the second swing arm to rotate in a direction close to the first swing arm with the connecting shaft as the axis, so that the second swing arm and the first swing arm can jointly clamp and fix the ductile iron between the first swing arm and the second swing arm. The above positioning device has the advantage of good positioning effect on ductile iron.

Description

Technical Field

[0001] The invention relates to a positioning device, in particular to a positioning device for cutting ductile iron. Background Art

[0002] Ductile iron is a high-strength cast iron material developed in the 1950s, and its comprehensive properties are close to those of steel. Based on its excellent properties, ductile iron has been successfully used to cast some parts with complex forces and high requirements for strength, toughness and wear resistance.

[0003] At present, ductile iron raw materials are usually cylindrical, and when processing them, they need to be fixed with a positioning clamping device and cut to a suitable size with a cutting device. However, in the prior art, when cutting ductile iron, the versatility of the positioning clamping device is usually not strong. When pressing the cylindrical ductile iron raw materials, the positioning clamping effect is often poor due to the small contact area, which ultimately affects the cutting accuracy. Summary of the invention

[0004] Based on this, it is necessary to provide a positioning device for ductile iron cutting to address the problem that the current positioning device for ductile iron cutting has poor positioning and clamping effect on cylindrical ductile iron raw materials.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A positioning device for ductile iron cutting, comprising a fixed seat and a clamping positioning unit. The fixed seat has a connecting shaft parallel to the length direction of the ductile iron. The clamping positioning unit is arranged on the fixed seat, and the clamping positioning unit comprises: a first swing arm, a second swing arm, a first driving mechanism and a second driving mechanism. One end of the first swing arm is rotatably connected to the connecting shaft. One end of the second swing arm is rotatably connected to the connecting shaft. The first driving mechanism is connected to the first swing arm, and the first driving mechanism is used to drive the first swing arm to rotate in a direction close to the second swing arm with the connecting shaft as the axis. The second driving mechanism is connected to the second swing arm, and the second driving mechanism is used to drive the second swing arm to rotate in a direction close to the first swing arm with the connecting shaft as the axis, so that the second swing arm and the first swing arm can jointly clamp and fix the ductile iron located between the first swing arm and the second swing arm.

[0007] In one embodiment, the positioning device also includes a lifting drive mechanism and an elastic member; the lifting drive mechanism is connected to the fixed seat; one end of the elastic member is connected to an end of the first swing arm away from the connecting shaft, and the other end of the elastic member is connected to an end of the second swing arm away from the connecting shaft, and the elastic member is located between the ductile iron and the fixed seat; the lifting drive mechanism is used to drive the fixed seat to move in a direction close to the ductile iron to stretch and tighten the elastic member.

[0008] In one embodiment, the first driving mechanism includes a first sliding connection assembly and a first telescopic member; the first sliding connection assembly is connected between the first swing arm and the telescopic rod of the first telescopic member so that the telescopic rod of the first telescopic member can move back and forth along the length direction of the first swing arm; one end of the first telescopic member away from the first sliding connection assembly is fixedly connected to the elastic member.

[0009] In one embodiment, the first driving mechanism further includes a first fixing frame, the first fixing frame is fixedly connected between an end of the first telescopic member away from the first sliding connection assembly and the elastic member, and the first fixing frame is used to support the ductile iron.

[0010] In one embodiment, the first sliding connection assembly includes a first sliding rail and a first slider; the first sliding rail is arranged along the length direction of the first swing arm, the first slider is movably connected to the first sliding rail, and the first slider is rotatably connected to the telescopic rod of the first telescopic member.

[0011] In one embodiment, the second driving mechanism includes a second sliding connection assembly and a second telescopic member; the second sliding connection assembly is connected between the second swing arm and the telescopic rod of the second telescopic member so that the telescopic rod of the second telescopic member can move back and forth along the length direction of the second swing arm; one end of the second telescopic member away from the second sliding connection assembly is fixedly connected to the elastic member.

[0012] In one embodiment, the second driving mechanism further includes a second fixing frame, the second fixing frame is fixedly connected between an end of the second telescopic member away from the second sliding connection assembly and the elastic member, and the second fixing member is used to support the ductile iron.

[0013] In one embodiment, the second sliding connection assembly includes a second slide rail and a second slider; the second slide rail is arranged along the length direction of the second swing arm, the second slider is movably connected to the second slide rail, and the second slider is rotatably connected to the telescopic rod of the second telescopic member.

[0014] In one embodiment, the first swing arm and the second swing arm are arranged and distributed along the axial direction of the connecting shaft; the first driving mechanism is arranged on a side of the first swing arm away from the second swing arm, and the second driving mechanism is arranged on a side of the second swing arm away from the first swing arm.

[0015] In one embodiment, a plurality of groups of clamping and positioning units are provided, and the plurality of groups of clamping and positioning units are arranged and distributed in an axial direction of the connecting shaft and spaced apart from each other.

[0016] The beneficial effects of the present invention are:

[0017] The present invention provides a positioning device for ductile iron cutting, which clamps and fixes cylindrical ductile iron raw materials by setting a clamping and positioning unit. The specific working process is as follows: when in use, the ductile iron is placed between the first swing arm and the second swing arm, and the axial direction of the ductile iron is kept parallel to the axial direction of the connecting shaft; the first swing arm is driven by the first driving mechanism to rotate in the direction of the second swing arm with the connecting shaft as the axis, and the second swing arm is driven by the second driving mechanism to rotate in the direction of the first swing arm with the connecting shaft as the axis; because the first swing arm and the second swing arm have a movement tendency to approach each other, when the first swing arm and the second swing arm are both in contact with the ductile iron, the first swing arm and the second swing arm can clamp the ductile iron together to achieve clamping and fixing of the ductile iron, so that the cutting device can accurately cut the ductile iron.

[0018] In addition, since the first swing arm and the second swing arm can rotate coaxially, when the above-mentioned positioning device for ductile iron cutting is not needed, the first swing arm and the second swing arm can be rotated closer to each other to reduce the space occupied by the first swing arm and the second swing arm.

[0019] In summary, the positioning device for cutting ductile iron can stably position the ductile iron, thereby improving the cutting accuracy of the cutting device on the ductile iron; in addition, the positioning device for cutting ductile iron also has the advantages of simple structure and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a positioning device for cutting ductile iron in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 The structural schematic diagram of the positioning device for ductile iron cutting shown in another viewing angle;

[0022] Figure 3 for Figure 1 The schematic diagram of the state of the ductile iron cutting positioning device when clamping and fixing the ductile iron;

[0023] Figure 4 for Figure 3 The structural schematic diagram of the positioning device for ductile iron cutting shown in another viewing angle;

[0024] Figure 5 for Figure 2 A magnified view of the structure of part A.

[0025] in:

[0026] 100-Positioning device for cutting ductile iron;

[0027] 110-fixed seat;

[0028] 111-connecting shaft;

[0029] 120- clamping and positioning unit;

[0030] 121-first swing arm;

[0031] 122-second swing arm;

[0032] 123-first driving mechanism;

[0033] 1231-first sliding connection assembly;

[0034] 12311-first slide rail;

[0035] 12312-first slider;

[0036] 1232-first telescopic member;

[0037] 1233-first fixed frame;

[0038] 124- second driving mechanism;

[0039] 1241-second sliding connection assembly;

[0040] 12411-second slide rail;

[0041] 12412-second slider;

[0042] 1242- second telescopic member;

[0043] 1243-second fixing frame;

[0044] 130-lifting drive mechanism;

[0045] 140- elastic member;

[0046] 200- ductile iron;

[0047] 300-Working platform. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] See also Figure 1 , Figure 2 and Figure 3 The embodiment of the present application provides a positioning device 100 for cutting ductile iron, which is used to clamp and fix ductile iron 200 so that the cutting device can accurately cut ductile iron 200. As a specific example, in the drawings of the specification of this embodiment, the structure and working principle of the positioning device 100 for cutting ductile iron are described in detail by taking a cylindrical ductile iron 200 raw material (hereinafter referred to as ductile iron 200) as an example. In other embodiments, the ductile iron 200 that is clamped and fixed can also be in any shape such as a cube or a sphere, which is not limited to this.

[0052] Please continue reading Figure 1 , Figure 2 and Figure 3 The positioning device 100 for cutting ductile iron comprises a fixing seat 110 and a clamping and positioning unit 120. The fixing seat 110 is a base for installing the clamping and fixing unit and other structures, and the fixing seat 110 has a connecting shaft 111 parallel to the length direction of the ductile iron 200. The clamping and positioning unit 120 is arranged on the fixing seat 110, and the clamping and fixing unit is used to clamp and fix the ductile iron 200.

[0053] The clamping and positioning unit 120 includes: a first swing arm 121, a second swing arm 122, a first driving mechanism 123 and a second driving mechanism 124. Among them, one end of the first swing arm 121 is rotatably connected to the connecting shaft 111, and one end of the second swing arm 122 is rotatably connected to the connecting shaft 111. As a specific example, in this embodiment, the first swing arm 121 and the second swing arm 122 are both roughly long strip structures, and the first swing arm 121 and the second swing arm 122 have the same structure. In other embodiments, the shapes of the first swing arm 121 and the second swing arm 122 may also be different.

[0054] The first driving mechanism 123 is connected to the first swing arm 121, and is used to drive the first swing arm 121 to rotate in a direction close to the second swing arm 122 with the connecting shaft 111 as the axial direction. The second driving mechanism 124 is connected to the second swing arm 122, and is used to drive the second swing arm 122 to rotate in a direction close to the first swing arm 121 with the connecting shaft 111 as the axial direction, so that the second swing arm 122 and the first swing arm 121 together clamp and fix the ductile iron 200 located between the first swing arm 121 and the second swing arm 122.

[0055] Through the above arrangement, when using the positioning device 100 for ductile iron cutting, the ductile iron 200 needs to be placed between the first swing arm 121 and the second swing arm 122, and the axial direction of the ductile iron 200 is kept parallel to the axial direction of the connecting shaft 111. Then, the first driving mechanism 123 drives the first swing arm 121 to rotate in a direction close to the second swing arm 122 with the connecting shaft 111 as the axial direction, and the second driving mechanism 124 drives the second swing arm 122 to rotate in a direction close to the first swing arm 121 with the connecting shaft 111 as the axial direction. Since the first swing arm 121 and the second swing arm 122 have a movement tendency to approach each other, when both the first swing arm 121 and the second swing arm 122 are in contact with the ductile iron 200, the first swing arm 121 and the second swing arm 122 can clamp the ductile iron 200 together to achieve clamping and fixing of the ductile iron 200, so that the cutting device can accurately cut the ductile iron 200. In addition, since the first swing arm 121 and the second swing arm 122 can rotate coaxially, when the above-mentioned positioning device 100 for ductile iron cutting is not needed, the first swing arm 121 and the second swing arm 122 can be rotated closer to each other to reduce the space occupied by the first swing arm 121 and the second swing arm 122.

[0056] In summary, the positioning device 100 for cutting ductile iron can stably position the ductile iron 200, thereby improving the cutting accuracy of the cutting device on the ductile iron 200; in addition, the positioning device 100 for cutting ductile iron also has the advantages of simple structure and small space occupation.

[0057] See also Figure 3 , Figure 4 and Figure 5 In some embodiments, the positioning device further includes a lifting drive mechanism 130 and an elastic member 140. The lifting drive mechanism 130 is connected to the fixed seat 110, and the lifting drive mechanism 130 is used to drive the fixed seat 110 to move up and down in the vertical direction. The lifting drive mechanism 130 can be any retractable device such as a hydraulic cylinder, a pneumatic cylinder, an electric push rod, etc. Since the ductile iron 200 is placed on a horizontal plane to be clamped and positioned in a normal use state, when the lifting drive mechanism 130 drives the fixed seat 110 to move vertically downward, the fixed seat 110 and all structures connected to the fixed seat 110 move in a direction close to the ductile iron 200.

[0058] One end of the elastic member 140 is connected to one end of the first swing arm 121 away from the connecting shaft 111, and the other end of the elastic member 140 is connected to one end of the second swing arm 122 away from the connecting shaft 111. The elastic member 140 is located between the ductile iron 200 and the fixing seat 110. The elastic member 140 can be a band-shaped structure with elasticity such as a rubber belt or a silicone belt. As a specific example, the elastic member 140 can be directly sleeved on the first swing arm 121 / the second swing arm 122, or bonded to the first swing arm 121 / the second swing arm 122 by glue, or fixedly connected to the first swing arm 121 / the second swing arm 122 by fasteners such as bolts / screws. There is no limitation on the specific type of the elastic member 140 and the specific connection method between the elastic member 140 and the first swing arm 121 / the second swing arm 122. The lifting drive mechanism 130 is used to drive the fixing seat 110 to move in a direction close to the ductile iron 200 so that the elastic member 140 is stretched and tightened.

[0059] Through the above arrangement, when the lifting drive mechanism drives the fixing seat 110 to move in the direction close to the ductile iron 200, the ductile iron 200 will lift the elastic member 140 in the direction close to the fixing seat 110, thereby stretching the elastic member 140. At this time, the two ends of the elastic member 140 can respectively apply elastic tension to the first swing arm 121 and the second swing arm 122, thereby improving the clamping and fixing effect of the first swing arm 121 and the second swing arm 122 on the ductile iron 200. In addition, since the elastic member 140 is almost completely in contact with the surface of the ductile iron 200 at this time, the elastic member 140 can increase the contact area between the clamping and positioning unit 120 and the ductile iron 200, so as to improve the positioning effect on the ductile iron 200. In addition, since the elastic member 140 can apply an elastic force to the ductile iron 200 in a direction that is approximately vertically downward, the elastic member 140 can press the ductile iron 200 onto the placement plane of the ductile iron 200 (the placement plane can be the surface of a working platform or a processing platform), thereby further improving the clamping and positioning effect of the ductile iron 200.

[0060] See also Figure 1, Figure 3 and Figure 4 In some embodiments, the first driving mechanism 123 includes a first sliding connection assembly 1231 and a first telescopic member 1232. The first telescopic member 1232 has a telescopic rod that can be telescopically moved, and the first telescopic member 1232 can be any telescopic device such as a hydraulic cylinder, a cylinder, an electric push rod, etc. The first sliding connection assembly 1231 is connected between the first swing arm 121 and the telescopic rod of the first telescopic member 1232, so that the telescopic rod of the first telescopic member 1232 can move back and forth along the length direction of the first swing arm 121. One end of the first telescopic member 1232 away from the first sliding connection assembly 1231 is fixedly connected to the elastic member 140.

[0061] Through the above arrangement, when the telescopic rod of the first telescopic member 1232 is shortened, the telescopic rod of the first telescopic member 1232 can drive the first swing arm 121 to move in a direction close to the second swing arm 122 with the connecting shaft 111 as the axial direction, and at the same time, the end of the telescopic rod of the first telescopic member 1232 connected to the first swing arm 121 will move in a direction close to the fixed seat 110 along the length direction of the first swing arm 121 through the first sliding connection assembly 1231, so as to ensure that the first swing arm 121 can rotate smoothly. Conversely, when the telescopic rod of the first telescopic member 1232 is extended, the telescopic rod of the first telescopic member 1232 can drive the first swing arm 121 to move in a direction away from the second swing arm 122 with the connecting shaft 111 as the axial direction, and at the same time, the end of the telescopic rod of the first telescopic member 1232 connected to the first swing arm 121 will move in a direction away from the fixed seat 110 along the length direction of the first swing arm 121 through the first sliding connection assembly 1231, so as to ensure that the first swing arm 121 can rotate smoothly. Therefore, the first telescopic member 1232 cooperates with the first sliding assembly to drive the first swing arm 121 to rotate with the connecting shaft 111 as the axial direction.

[0062] In some embodiments, the first driving mechanism 123 further includes a first fixing frame 1233. The first fixing frame 1233 is fixedly connected between the end of the first telescopic member 1232 away from the first sliding connection assembly 1231 and the elastic member 140, and the first fixing frame 1233 is used to resist the ductile cast iron 200. For example, the first fixing frame 1233 can be welded, bonded, or fixedly connected to the first telescopic member 1232 by fasteners such as bolts / screws, and the first fixing frame 1233 can be bonded or fixedly connected to the elastic member 140 by fasteners such as bolts / screws. The specific connection method of the first fixing frame 1233, the first telescopic member 1232, and the elastic member 140 is not limited. In this embodiment, the elastic member 140 is arranged through the first fixing frame 1233 and is bonded to the first fixing frame 1233, which can reduce the space occupied by the first fixing frame 1233 and the elastic member 140, and can ensure that the first fixing frame 1233 and the elastic member 140 are fully and stably fixedly connected.

[0063] Through the above arrangement, since the hard first fixing frame 1233 is against the surface of the ductile iron 200 , compared with the soft elastic member 140 , the first fixing frame 1233 can provide a better clamping and fixing effect for the ductile iron 200 to achieve stable positioning of the ductile iron 200 .

[0064] In some embodiments, the first sliding connection assembly 1231 includes a first slide rail 12311 and a first slider 12312. The first slide rail 12311 is arranged along the length direction of the first swing arm 121, the first slider 12312 is movably connected to the first slide rail 12311, and the first slider 12312 is rotatably connected to the telescopic rod of the first telescopic member 1232. As a specific example, in this embodiment, the first slide rail 12311 is roughly in the shape of a long strip, the two ends of the first slide rail 12311 are respectively connected to the first swing arm 121, the rest of the first slide rail 12311 is spaced apart from the first swing arm 121, the first slider 12312 is movably sleeved on the first slide rail 12311, and the first slider 12312 is rotatably connected to the telescopic rod of the first telescopic member 1232 through a pin. In other embodiments, the first slide rail 12311 may also be fitted on the surface of the first swing arm 121, and the first slider 12312 may also be embedded with the first slide rail 12311. The specific connection method between the first slide rail 12311 and the first slider 12312 is not limited.

[0065] Through the above arrangement, when the telescopic rod of the first telescopic member 1232 telescopes, the telescopic rod of the first telescopic member 1232 can rotate relative to the first slider 12312, and at the same time drive the first slider 12312 to slide along the first slide rail 12311 to ensure that the first swing arm 121 can rotate smoothly and clamp the ductile iron 200.

[0066] Please continue reading Figure 1 , Figure 3 and Figure 4 In some embodiments, the second driving mechanism 124 includes a second sliding connection assembly 1241 and a second telescopic member 1242. The second telescopic member 1242 has a telescopic rod that can be telescopically moved, and the second telescopic member 1242 can be any telescopic device such as a hydraulic cylinder, a cylinder, an electric push rod, etc. The second sliding connection assembly 1241 is connected between the second swing arm 122 and the telescopic rod of the second telescopic member 1242, so that the telescopic rod of the second telescopic member 1242 can move back and forth along the length direction of the second swing arm 122. One end of the second telescopic member 1242 away from the second sliding connection assembly 1241 is fixedly connected to the elastic member 140.

[0067] Through the above arrangement, when the telescopic rod of the second telescopic member 1242 is shortened, the telescopic rod of the second telescopic member 1242 can drive the second swing arm 122 to move in a direction close to the first swing arm 121 with the connecting shaft 111 as the axial direction, and at the same time, the end of the telescopic rod of the second telescopic member 1242 connected to the second swing arm 122 will move in a direction close to the fixed seat 110 along the length direction of the second swing arm 122 through the second sliding connection assembly 1241, so as to ensure that the second swing arm 122 can rotate smoothly. Conversely, when the telescopic rod of the second telescopic member 1242 is extended, the telescopic rod of the second telescopic member 1242 can drive the second swing arm 122 to move in a direction away from the first swing arm 121 with the connecting shaft 111 as the axial direction, and at the same time, the end of the telescopic rod of the second telescopic member 1242 connected to the second swing arm 122 will move in a direction away from the fixed seat 110 along the length direction of the second swing arm 122 through the second sliding connection assembly 1241, so as to ensure that the second swing arm 122 can rotate smoothly. Therefore, the second telescopic member 1242 cooperates with the second sliding assembly to drive the second swing arm 122 to rotate with the connecting shaft 111 as the axial direction.

[0068] In some embodiments, the second driving mechanism 124 further includes a second fixing frame 1243. The second fixing frame 1243 is fixedly connected between the end of the second telescopic member 1242 away from the second sliding connection assembly 1241 and the elastic member 140, and the second fixing member is used to resist the ductile iron 200. For example, the second fixing frame 1243 can be welded, bonded, or fixedly connected to the second telescopic member 1242 by fasteners such as bolts / screws, and the second fixing frame 1243 can be bonded or fixedly connected to the elastic member 140 by fasteners such as bolts / screws. The specific connection method of the second fixing frame 1243, the second telescopic member 1242, and the elastic member 140 is not limited. In this embodiment, the elastic member 140 is arranged through the second fixing frame 1243 and is bonded to the second fixing frame 1243, which can reduce the space occupied by the second fixing frame 1243 and the elastic member 140, and can ensure that the second fixing frame 1243 and the elastic member 140 are fully and stably fixedly connected.

[0069] Through the above arrangement, since the hard second fixing frame 1243 is against the surface of the ductile iron 200 , compared with the soft elastic member 140 , the second fixing frame 1243 can provide a better clamping and fixing effect for the ductile iron 200 to achieve stable positioning of the ductile iron 200 .

[0070] In some embodiments, the second sliding connection assembly 1241 includes a second slide rail 12411 and a second slider 12412. The second slide rail 12411 is arranged along the length direction of the second swing arm 122, the second slider 12412 is movably connected to the second slide rail 12411, and the second slider 12412 is rotatably connected to the telescopic rod of the second telescopic member 1242. As a specific example, in this embodiment, the second slide rail 12411 is roughly in the shape of a long strip, the two ends of the second slide rail 12411 are respectively connected to the second swing arm 122, the rest of the second slide rail 12411 is spaced apart from the second swing arm 122, the second slider 12412 is movably sleeved on the second slide rail 12411, and the second slider 12412 is rotatably connected to the telescopic rod of the second telescopic member 1242 through a pin shaft. In other embodiments, the second slide rail 12411 can also be fitted on the surface of the second swing arm 122, and the second slider 12412 can also be embedded in the second slide rail 12411. The specific connection method between the second slide rail 12411 and the second slider 12412 is not limited.

[0071] Through the above arrangement, when the telescopic rod of the second telescopic member 1242 telescopically moves, the telescopic rod of the second telescopic member 1242 can rotate relative to the second slider 12412, and at the same time drive the second slider 12412 to slide along the second slide rail 12411 to ensure that the second swing arm 122 can rotate smoothly and clamp the ductile iron 200.

[0072] See also Figure 1 In some embodiments, the first swing arm 121 and the second swing arm 122 are arranged and distributed along the axial direction of the connecting shaft 111. The first driving mechanism 123 is arranged on the side of the first swing arm 121 away from the second swing arm 122, and the second driving mechanism 124 is arranged on the side of the second swing arm 122 away from the first swing arm 121. Through the above arrangement, the first driving mechanism 123 and the second driving mechanism 124 can be reasonably arranged to avoid mutual interference and influence on the work of the first driving mechanism 123 and the second driving mechanism 124; in addition, the installation space can be reasonably utilized to reduce the space volume occupied by the positioning device 100 for ductile iron cutting.

[0073] In some embodiments, the clamping and positioning units 120 are provided in multiple groups, and the multiple groups of clamping and positioning units are arranged and distributed along the axial direction of the connecting shaft 111. As a specific example, in this embodiment, the clamping and positioning units 120 are provided in three groups. In other embodiments, the clamping and positioning units 120 can also be provided in any multiple groups such as two groups, four groups, five groups, etc., and the specific number of the clamping and positioning units 120 is not limited. Through the above-mentioned arrangement, since the clamping and positioning units 120 are provided in multiple groups, the multiple groups of clamping and positioning units 120 can clamp and fix the ductile iron 200 together, which can greatly improve the clamping and positioning effect of the ductile iron 200, so as to effectively improve the stability and reliability of the ductile iron 200 after being fixed. And since the multiple groups of clamping and positioning units 120 are arranged at intervals from each other, the work between the multiple groups of clamping and positioning units 120 does not affect each other, thereby ensuring the normal work of the multiple groups of clamping and positioning units 120.

[0074] In summary, this embodiment provides a positioning device 100 for cutting ductile iron. Before use, the positioning device 100 for cutting ductile iron needs to be fixedly installed on a frame (not shown in the figure). For example, the fixing seat 110 or the lifting drive mechanism 130 can be fixedly installed on the frame, and it is necessary to ensure that the positioning device is located on the working platform 300 (see FIG. 1 ) where the ductile iron 200 is placed. Figure 4 ) and spaced apart from the working platform 300. Then the ductile iron 200 to be cut is placed on the working platform 300, and the axial direction of the ductile iron 200 is kept parallel to the axial direction of the connecting shaft 111. At this time, the ductile iron 200 is located below the positioning device.

[0075] When in use, the lifting drive mechanism 130 drives the fixed seat 110 to move vertically downward, that is, to move in the direction close to the ductile iron 200, and at the same time drives the first swing arm 121 to rotate in the direction of the second swing arm 122 with the connecting shaft 111 as the axis through the first drive mechanism 123, and drives the second swing arm 122 to rotate in the direction of the first swing arm 121 with the connecting shaft 111 as the axis through the second drive mechanism 124; as the positioning device continues to move downward, the ductile iron 200 will gradually move between the first swing arm 121 and the second swing arm 122, and the ductile iron 200 will lift the elastic member 140 in the direction close to the fixed seat 110, and contact the first fixed frame 1233 and the second fixed frame 1243. In the above process, since the first swing arm 121 and the second swing arm 122 have a movement tendency to approach each other, when the first swing arm 121 and the second swing arm 122 are in contact with the ductile iron 200, the first swing arm 121 and the second swing arm 122 can clamp the ductile iron 200 together to achieve clamping and fixing of the ductile iron 200; and since the elastic member 140, the first fixing frame 1233 and the second fixing frame 1243 can apply pressure to the ductile iron 200, the elastic member 140, the first fixing frame 1233 and the second fixing frame 1243 can press the ductile iron 200 onto the working platform 300 to further improve the fixing effect of the ductile iron 200.

[0076] Therefore, the positioning device 100 for cutting ductile iron provided in this embodiment can clamp and fix the ductile iron 200 from at least two different directions, so it can effectively improve the clamping and positioning effect of the ductile iron 200, so that the cutting device can accurately cut the ductile iron 200. In addition, the positioning device 100 for cutting ductile iron also has the advantages of simple structure and small space occupation.

[0077] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-described embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A positioning device for cutting ductile iron, characterized in that: include: Fixed seat and clamping positioning unit; The fixing seat has a connecting axis parallel to the length direction of the ductile iron; The clamping and positioning unit is arranged on the fixing seat, and the clamping and positioning unit comprises: A first swing arm, one end of which is rotatably connected to the connecting shaft; A second swing arm, one end of which is rotatably connected to the connecting shaft; A first driving mechanism, connected to the first swing arm, the first driving mechanism is used to drive the first swing arm to rotate in a direction close to the second swing arm with the connecting shaft as the axis; a second driving mechanism connected to the second swing arm, the second driving mechanism being used to drive the second swing arm to rotate in a direction close to the first swing arm with the connecting shaft as the axis, so that the second swing arm and the first swing arm together clamp and fix the ductile iron between the first swing arm and the second swing arm; The positioning device further comprises a lifting drive mechanism and an elastic member; the lifting drive mechanism is connected to the fixing seat; one end of the elastic member is connected to one end of the first swing arm away from the connecting shaft, and the other end of the elastic member is connected to one end of the second swing arm away from the connecting shaft, and the elastic member is located between the ductile iron and the fixing seat; the lifting drive mechanism is used to drive the fixing seat to move in a direction close to the ductile iron so as to stretch and tighten the elastic member; The first driving mechanism includes a first sliding connection assembly and a first telescopic member; the first sliding connection assembly is connected between the first swing arm and the telescopic rod of the first telescopic member, so that the telescopic rod of the first telescopic member can move back and forth along the length direction of the first swing arm; one end of the first telescopic member away from the first sliding connection assembly is fixedly connected to the elastic member.

2. The positioning device for ductile iron cutting according to claim 1, characterized in that: The first driving mechanism further comprises a first fixing frame, the first fixing frame being fixedly connected between an end of the first telescopic member away from the first sliding connection assembly and the elastic member, and the first fixing frame being used for supporting the ductile iron.

3. The positioning device for ductile iron cutting according to claim 1, characterized in that: The first sliding connection assembly includes a first slide rail and a first slider; the first slide rail is arranged along the length direction of the first swing arm, the first slider is movably connected to the first slide rail, and the first slider is rotatably connected to the telescopic rod of the first telescopic member.

4. The positioning device for ductile iron cutting according to claim 1, characterized in that: The second driving mechanism includes a second sliding connection assembly and a second telescopic member; the second sliding connection assembly is connected between the second swing arm and the telescopic rod of the second telescopic member, so that the telescopic rod of the second telescopic member can move back and forth along the length direction of the second swing arm; one end of the second telescopic member away from the second sliding connection assembly is fixedly connected to the elastic member.

5. The positioning device for cutting ductile iron according to claim 4, characterized in that: The second driving mechanism further comprises a second fixing frame, the second fixing frame is fixedly connected between one end of the second telescopic member away from the second sliding connection assembly and the elastic member, and the second fixing member is used for supporting the ductile iron.

6. The positioning device for cutting ductile iron according to claim 4, characterized in that: The second sliding connection assembly includes a second slide rail and a second slider; the second slide rail is arranged along the length direction of the second swing arm, the second slider is movably connected to the second slide rail, and the second slider is rotatably connected to the telescopic rod of the second telescopic member.

7. The positioning device for cutting ductile iron according to claim 1, characterized in that: The first swing arm and the second swing arm are arranged and distributed along the axial direction of the connecting shaft; the first driving mechanism is arranged on a side of the first swing arm away from the second swing arm, and the second driving mechanism is arranged on a side of the second swing arm away from the first swing arm.

8. The positioning device for cutting ductile iron according to any one of claims 1 to 7, characterized in that: The clamping and positioning units are provided in a plurality of groups, and the plurality of groups of clamping and positioning units are arranged and distributed in an axial direction of the connecting shaft and spaced from each other.

Images