Casting pipe fitting grabbing device

Abstract

The utility model relates to a casting pipe fitting grabbing device which comprises a shell and two clamping arms arranged in the shell, a line concentration block is arranged in the middle of the top of the shell, a hoisting cable is movably arranged on the line concentration block, two cavities with upper openings and lower openings are symmetrically formed in the shell, and the two clamping arms are arranged in the shell. A plurality of inclined sliding rods are arranged in each cavity, the clamping arms are movably arranged in the cavities through the sliding rods, and hoisting cables are located at the two ends of the lower side of the line concentration block and fixedly connected with the upper ends of the clamping arms on the corresponding sides; during grabbing and hoisting, the hoisting cable is tensioned by the lifting device, and the clamping arms draw close to the middle along the sliding rods under the upward pulling force effect of the hoisting cable so as to grab cylindrical or barrel-shaped casting parts.

Description

Technical Field

[0001] The utility model relates to the technical field of casting part processing auxiliary equipment, in particular to a casting pipe fitting grasping device. Background Technique

[0002] Casting is a method of pouring liquid metal into a casting cavity adapted to the shape of a part and waiting for it to cool and solidify to obtain the part or blank. Casting parts are generally heavy, and when the products produced by casting are just demolded, their temperature is too high to be directly carried and transferred manually. Therefore, special equipment is needed to grasp and move the casting parts. For casting pipe fittings, for example, the Chinese utility model patent with the authorization publication number of CN219116593U specifically discloses a support assembly, which includes an intermediate rod and two first moving plates. Fixed holes are provided on the outer walls at both ends of the intermediate rod, and first guide rods coaxial with it are fixed in the fixed holes. A fixing plate is commonly fixed at the same end of the first guide rods. Rotation holes are provided at the middle positions of the outer walls of the fixing plate and the intermediate rod. Guide holes are provided on the outer walls at both ends of the first moving plate. The two first guide rods are respectively arranged in the two guide holes, and the two first moving plates are respectively placed on both sides of the intermediate rod. It also includes an alignment assembly arranged in the three rotation holes, and the two first moving plates are both connected to the alignment assembly. Although it can solve the problem of clamping stability, it still has certain disadvantages. The vertical plate in the clamping mechanism is arranged on the first moving plate through a horizontally arranged second guide rod. When the hydraulic rod on the upper side of the first moving plate rises, the vertical plates are driven to approach each other through the connecting rod. In the above setting, the key weight hoisted at the lower end of the vertical plate is mainly borne by the second guide rod. Under long-term heavy pressure, the second guide rod may arc downward. In this way, when the hydraulic rod drives the vertical plate to move on the second guide rod through the connecting rod, it will be blocked when moving on the second guide rod, and the approach or separation of the vertical plate requires the control of an additional hydraulic rod. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that the two vertical plates (i.e., the clamping arms in this application) for grasping cannot be automatically separated and combined, and the horizontal setting of the guide rod results in a large resistance during the approach or separation of the vertical plates. In view of the above defects of the prior art, a casting pipe fitting grasping device is provided.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] Embodiment 1

[0006] A casting pipe grasping device is constructed, comprising a shell, and two clamping arms arranged inside the shell, a collection block is arranged in the middle of the top of the shell, and a lifting cable is movably arranged on the collection block, and two cavities with upper and lower ends opening are symmetrically arranged inside the shell, wherein a plurality of inclined sliding rods are arranged in each of the cavities, and the clamping arms are movably arranged in the cavities through the sliding rods, and the lifting cables are located at the lower sides of the collection block and are respectively fixedly connected to the upper ends of the clamping arms on the corresponding sides; when grasping and hoisting, the lifting device tightens the lifting cables, and the clamping arms move toward the middle along the sliding rods under the upward pulling force of the lifting cables to grasp the cylindrical or tubular castings.

[0007] Preferably, two cable channels are symmetrically provided on the cable collection block, the lower ends of the cable channels are connected to the cavities on the corresponding sides, and the lower ends of the two cable channels are in an "eight" shape to reduce the resistance of the lower ends of the cable channels to the hanging cables.

[0008] Preferably, the sliding rods in the two cavities are arranged in pairs corresponding to each other, each sliding rod is fixedly connected to the left and right side walls of the cavity where it is located, and the position of the end of the sliding rod close to the outside of the shell is lower than the position of the end of the sliding rod close to the middle of the shell.

[0009] Preferably, the clamping arm is provided with a slideway corresponding to the slide bar, the slideway is arranged obliquely, and the clamping arm is slidably connected to the slide bar via the slideway.

[0010] Preferably, a separation spring is mounted on one of the pairs of slide rods, one end of the separation spring abuts against an inner wall of a cavity close to the left or right side of the shell, and the other end abuts against a partition between the two cavities. The elastic force of the separation spring keeps the two clamping arms in a tendency to separate.

[0011] Preferably, the lower end of the clamping arm is provided with a gripping end, and the gripping ends at the lower ends of the two clamping arms can gradually bite together as the two clamping arms approach each other to form a U-shaped gripping space.

[0012] Preferably, a plurality of limiting through holes penetrating the front and rear walls are arranged on the front and rear walls of the shell, the limiting through holes on the front wall and the rear wall are coaxially arranged correspondingly, and the limiting through holes are symmetrically arranged about the middle of the shell.

[0013] Preferably, when in use, the limiting columns are inserted into any two pairs of limiting through holes symmetrical about the middle of the shell according to the diameter of the cylindrical or tubular casting to be grasped.

[0014] Preferably, a lifting lug is provided on the wire collecting block. When the lifting lug is connected to a lifting device to move the device, the two clamping arms are separated from each other under the combined action of their own gravity and the separating spring, so as to separate the two grasping ends at the lower ends of the clamping arms; before the casting to be grasped enters between the two clamping arms for grasping, the lifting lug is connected to the lifting device to move the lifting lug to the grasping position and ensure that the clamping arms are in a separated state; when the casting to be grasped is waiting to be grasped between the two clamping arms, the lifting cable on the upper side of the wire collecting block is connected to the lifting device.

[0015] The beneficial effects of the present utility model are as follows:

[0016] In the present utility model, the sliding rods are obliquely and pairwise arranged in the two cavities, and the clamping arms are slidably arranged on the sliding rods. In this way, when the device is moved through the lifting lug, the two clamping arms will move obliquely downward along the sliding rods under the action of their own gravity or the separating spring, that is, the two clamping arms are separated during the hoisting process of the device through the lifting lug, which can vacate space for the key to be grasped to enter between the two clamping arms; a wire collecting block is arranged at the top of the housing, and two wire channels are provided on the wire collecting block. The lower ends of the wire channels are communicated with the corresponding side cavities, and the lower ends of the two wire channels are in a "V" shape. The lifting cables located at the lower sides of the two ends of the wire collecting block are respectively fixedly connected to the upper ends of the corresponding side clamping arms. In this way, when the device is hoisted through the lifting cables, the lifting cables are tightened, and then the clamping arms are pulled to move obliquely upward along the sliding rods and approach each other. During this process, the grasping sections gradually bite from the separated state and form a U-shaped grasping space; in addition, in the present utility model, during the hoisting and grasping process, the clamping arms always maintain a movement trend of approaching the middle under the action of the lifting cables and the wire collecting block. Therefore, during the hoisting process, the phenomenon that the two clamping arms are separated and the grasped object falls will not occur. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings:

[0018] Figure 1 It is a sectional perspective view of the present utility model.

[0019] Figure 2 It is a sectional view of the present utility model.

[0020] Figure 3 It is a perspective view of the present utility model.

[0021] Figure 4 It is a sectional perspective view of the housing of the present utility model.

[0022] Figure 5 This is a perspective view of the clamping arm of the present utility model. Specific embodiments

[0023] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] For ease of understanding, the following definitions are made. As Figure 1 the directional positioning of the housing, Figure 1 the left side in the figure is the left side of the housing,

[0025] The specific technical solution of an embodiment of the present utility model:

[0026] As Figures 1-5 shown, a casting processing gripping device has a housing 10. The housing 10 is in the shape of a cuboid or a cube. The housing 10 has four closed side walls in the front, back, left and right directions. Two cavities 101 are symmetrically arranged inside the housing 10. The two cavities 101 are separated by an intermediate partition 102. The two cavities 101 penetrate the top and bottom of the housing 10, and each cavity 101 forms an opening at the top and bottom of the housing 10. A number of sliding rods 103 are arranged in each cavity 101, and the sliding rods 103 in the two cavities 101 correspond to each other one by one. The sliding rods 103 are inclined. A clamping arm 20 is slidably arranged in each cavity 101 through the sliding rod 101. A wire collecting block 30 is arranged in the middle of the top of the housing 10. A hoisting cable 40 is movably arranged on the wire collecting block 30. The two ends of the hoisting cable 40 (i.e., the ends of the hoisting cable below the wire collecting block) are fixedly connected to the upper ends of the clamping arms 20. In this way, when the hoisting cable 40 on the upper side of the wire collecting block 30 is connected to the hook of a lifting device (such as a crane, a gantry crane, etc.) and the device is lifted, the hoisting cable 40 moves upward towards the upper side of the wire collecting block 30. In this way, the hoisting cable 40 generates an obliquely upward pulling force on the clamping arms 20. At the same time, under the combined action of the self-gravity of the housing 10 of the device, the two clamping arms 20 move obliquely upward along the sliding rods 103 and approach each other. During this process, the clamping arms 20 always remain in a vertical state. Finally, the gripping ends 201 at the lower ends of the clamping arms 20 bite each other to form a U-shaped gripping space.

[0027] Specifically, as Figure 1 、 Figure 2 and Figure 4As shown, two cable channels 301 are symmetrically provided on the hub block 30, and the lower ends of the cable channels 301 are connected to the cavity 101 on the corresponding side, and the lower ends of the two cable channels 301 are in an "eight" shape, so that the hanging cable 40 is introduced into the cable channel 301 at a certain inclination angle at the entrance of the cable channel 301, thereby avoiding the obstruction of the lower end of the cable channel 301 to the sliding of the hanging cable 40 when the lower end of the cable channel 3001 is in a vertical state, thereby reducing the resistance of the lower end of the cable channel 301 to the hanging cable 40.

[0028] Furthermore, if Figure 1 , Figure 2 as well as Figure 4 As shown, a plurality of slide bars 103, at least two, are arranged in each cavity 101, and the plurality of slide bars 103 are arranged in sequence along the vertical direction. The slide bars 103 in the same cavity 101 are parallel to each other, and the slide bars 103 in the two cavities 101 are arranged in pairs corresponding to each other. Each slide bar 103 is fixedly connected to the left and right side walls of the cavity 101 in which it is located, and the position of one end of the slide bar 103 close to the outside of the shell 10 is lower than the position of one end of the slide bar 103 close to the middle of the shell (i.e., the partition).

[0029] Furthermore, a slideway 202 corresponding to the slide bar 103 is provided on the clamping arm 20, and the slideway 202 is inclined. The inclination angle of the slideway 202 is the same as the inclination angle of the slide bar 103, and the number of the slideways 202 corresponds to the number of the slide bars 103 in each cavity 101. The clamping arm 20 is slidably connected to the slide bar 103 through the slideway 202, so that the clamping arm 20 is relatively slidably arranged in each cavity 101.

[0030] Specifically, each clamping arm 20 is provided with a grasping end 201 at the lower end. When the clamping arm 20 is arranged in the cavity 101, the grasping ends 201 of the two clamping arms 20 are arranged relatively to each other, and the grasping ends 201 at the lower ends of the two clamping arms 20 can gradually bite together as the two clamping arms 20 approach each other to form a U-shaped grasping space, and columnar objects such as cast pipes can be placed in the grasping space to wait for grasping.

[0031] It should be noted that a cable fixing hole 203 is provided at the top of the clamping arm 20 , and the end of the hoisting cable 40 is fixedly provided in the cable fixing hole 203 , so as to realize the fixed connection between the hoisting cable 40 and the clamping arm 20 .

[0032] Example 2

[0033] Compared with Example 1, the clamping arms 20 in Example 1 will not automatically separate to both sides during the pre-lifting preparation process, thereby forming a passage for the object to be grasped to enter between the two clamping arms 20. Therefore, in this embodiment, a lifting lug 302 is provided on the cable collection block 30, and the lifting lug 302 is mainly used for connecting with the lifting device to move the device after the pre-installation preparation and lifting completion.

[0034] Example 3

[0035] When the device is moved by the lifting ear 302, although the two clamping arms 20 can move away from each other to the sides under the action of the shell 10's own gravity (when the shell is lifted by the lifting ear, the clamping arms will slide obliquely downward along the slide rod under the action of gravity), the separation speed of the two clamping arms 20 may be slow due to the friction and other resistances between the components. Therefore, in this embodiment, a separation spring 104 is mounted on one of the pairs of slide rods, one end of the separation spring 104 abuts against the inner wall of a cavity 101 close to the left or right side of the shell 10, and the other end abuts against the partition 102 between the two cavities 101. The elastic force of the separation spring 104 keeps the two clamping arms 20 in a tendency to separate.

[0036] For example, when the lifting ear 302 is connected to the lifting device to move the device, the two clamping arms 20 are separated from each other under the combined action of the weight of the shell 10 itself and the separation spring 104, so as to separate the two grasping ends 201 at the lower end of the clamping arm 20; before the casting to be grasped enters between the two clamping arms 20 and is ready to be grasped, the lifting ear 302 is connected to the lifting device to move the device to the grasping position and ensure that the clamping arms 20 are in a separated state; when the casting to be grasped is waiting to be grasped between the two clamping arms 20, the lifting cable 40 on the upper side of the wiring block 30 is connected to the lifting device, and the lifting cable 40 is gradually tightened by the lifting device. Under the action of the wiring block, the lifting cable 40 generates an oblique upward pulling force on the clamping arm 20, and the oblique upward pulling force causes the clamping arm 20 to move obliquely upward along the slide bar 103, that is, the two clamping arms 20 approach each other until the grasping ends 201 bite into each other, forcing the cast pipe to enter the grasping space.

[0037] Example 4

[0038] During the hoisting and moving process connected to the lifting device through the hoisting cable 40, the clamping arm always maintains a movement trend towards the middle under the joint action of the hoisting cable 40 and the wiring block 30. Therefore, in order to avoid the clamping arm 20 from causing damage to the cast pipes and other objects with gripping, a plurality of limit through holes 105 penetrating the front and rear walls are arranged on the front and rear walls of the shell 10. The limit through holes 105 on the front wall and the rear wall are coaxially arranged, and the limit through holes 105 are symmetrically arranged about the middle of the shell 10.

[0039] When in use, according to the diameter of the cylindrical or tubular casting to be grasped, select any two pairs of symmetrical limiting through holes 105 about the middle of the shell 10 to insert the limiting columns 106, so that the limiting columns 106 inserted in the limiting holes 105 can contact the opposite side walls of the two clamping arms 20 to prevent the two clamping arms 20 from continuing to move toward the middle of the shell 10 during the lifting movement process.

[0040] Finally, it should be noted that during the grabbing process of the utility model, the weight of the grabbed object is mainly transmitted to the lifting device through the clamping arm, lifting cables and cable assembly block. The upward or downward force received by the sliding bar is smaller than that in the horizontal setting, thereby preventing the sliding bar from being deformed by excessive force. In this process, the sliding bar mainly plays a role in limiting the state of the clamping arm.

[0041] It should be understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A casting pipe gripping device, comprising a housing, and two clamping arms arranged inside the housing, characterized in that: A wiring hub is provided in the middle of the top of the shell, and a lifting cable is movably provided on the wiring hub. Two cavities with upper and lower openings are symmetrically provided inside the shell, wherein a plurality of inclined sliding rods are provided in each of the cavities, and the clamping arms are movably arranged in the cavities through the sliding rods. The lifting cables are located at the lower side of the wiring hub, and the two ends thereof are fixedly connected to the upper ends of the clamping arms on the corresponding sides respectively. During grabbing and lifting, the clamping arms move toward the middle along the sliding rods under the upward pulling force of the lifting cables to grab the cylindrical or tubular castings.

2. The casting pipe grabbing device according to claim 1, characterized in that: The cable collection block is symmetrically provided with two cable channels, the lower ends of which are connected to the cavities on the corresponding sides, and the lower ends of the two cable channels are in an "eight" shape to reduce the resistance of the lower ends of the cable channels to the hoisting cables.

3. The casting pipe grabbing device according to claim 2, characterized in that: The slide bars in the two cavities correspond to each other and are arranged in pairs. Each slide bar is fixedly connected to the left and right side walls of the cavity where it is located, and the position of the end of the slide bar close to the outside of the shell is lower than the position of the end of the slide bar close to the middle of the shell.

4. The casting pipe grabbing device according to claim 3, characterized in that: The clamping arm is provided with a slideway corresponding to the slide bar, the slideway is arranged in an inclined manner, and the clamping arm is slidably connected with the slide bar through the slideway.

5. The casting pipe grabbing device according to claim 4, characterized in that: A separation spring is mounted on one pair of slide rods, one end of the separation spring abuts against an inner wall of a cavity close to the left or right side of the shell, and the other end abuts against a partition between the two cavities. The elastic force of the separation spring keeps the two clamping arms in a separation trend.

6. The casting pipe grabbing device according to claim 5, characterized in that: The lower end of the clamping arm is provided with a grasping end, and the grasping ends at the lower ends of the two clamping arms can gradually bite together as the two clamping arms approach each other to form a U-shaped grasping space.

7. The casting pipe grabbing device according to claim 6, characterized in that: A plurality of position limiting through holes penetrating the front and rear walls of the shell are arranged, and the position limiting through holes are arranged symmetrically about the middle of the shell.

8. The casting pipe grabbing device according to claim 7, characterized in that: When in use, the limiting columns are inserted into any two pairs of limiting through holes symmetrical about the middle of the shell body according to the diameter of the cylindrical or tubular casting to be grasped.

9. The casting pipe grabbing device according to claim 1, characterized in that: The cable collection block is provided with a lifting ear. When the lifting ear is connected to the lifting device to move the device, the two clamping arms are separated from each other under the combined action of their own gravity and the separation spring, so as to separate the two grasping ends at the lower ends of the clamping arms; before the casting to be grasped enters between the two clamping arms and is ready to be grasped, the lifting ear is connected to the lifting device to move the lifting ear to the grasping position and ensure that the clamping arms are in a separated state; when the casting to be grasped is waiting to be grasped between the two clamping arms, the lifting cable on the upper side of the cable collection block is connected to the lifting device.

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