Polishing device for metal pipe

Abstract

The utility model relates to the technical field of metal pipe production, in particular to a metal pipe polishing device which comprises an operation table, a rotary table is installed on the operation table, a plurality of stations are installed on the table top of the rotary table, a plurality of supports, a feeding device and a discharging assembly are fixed to the operation table, and the feeding device and the discharging assembly are distributed on the periphery of the rotary table. And a supporting plate which is in sliding connection with the table top of the rotary table is fixed among the multiple supports, and a grinding assembly is installed between the supporting plate and the operation table. According to the polishing device for the metal pipe, a product is put into the station through the feeding device, the product passes through the polishing assembly to be polished at the welding position through rotation of the rotary table, and after polishing is completed, the product is conveyed to the discharging assembly through the rotary table to be discharged and collected; and therefore, the local position of the product can be automatically polished, the safety in the machining process can be improved, meanwhile, polishing can be consistent, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal pipe production, and particularly relates to a grinding device for metal pipes. Background Art

[0002] During the manufacturing, assembly, and maintenance of metal pipes, it is often necessary to grind specific areas, such as removing welding marks, correcting dimensional deviations, improving surface roughness, or preparing the surface for coating pretreatment.

[0003] Traditionally, this kind of grinding work mainly relies on manual operation, using hand-held grinders or grinding wheels. The operator directly contacts the high-speed rotating grinding tools, which poses a high risk of accidents. For example, flying metal fragments and sparks may cause injuries. At the same time, manual grinding is slow, labor-intensive, especially time-consuming for grinding a batch of pipes, and the quality is greatly affected by the operator's skills, making it difficult to ensure consistency. Content of the Utility Model

[0004] To achieve the above object, the utility model provides the following technical solution: a grinding device for metal pipes, including an operation table, a turntable is installed on the operation table, a plurality of workstations are installed on the tabletop of the turntable, a plurality of brackets are fixed on the operation table, a feeding device and a discharging component distributed outside the turntable, and a plurality of upward pushing components below the workstations. A support plate slidably connected to the tabletop of the turntable is fixed between the plurality of brackets, and a grinding component is installed between the support plate and the operation table;

[0005] The grinding component includes a grinding part installed on the operation table, a top rotating part below the workstation, and a pressing part installed on the support plate above the workstation and on the same vertical horizontal line as the top rotating part.

[0006] Further, the workstation includes a bearing seat fixed on the tabletop of the turntable, a placing pipe is fixed inside the bearing seat, and an annular platform is arranged inside the placing pipe.

[0007] Further, the pressing part includes an upper frame fixed on the support plate, and a pressing cylinder located above the placing pipe is installed on the upper frame.

[0008] Further, the top rotating part includes a base installed at the bottom of the operation table, a lower top cylinder is installed at the bottom of the base, a guiding frame plate passing through the base is fixed at the top end of the lower top cylinder, a rotating block is rotatably installed below the placing pipe on the guiding frame plate, and a belt transmission device for driving the rotating block to rotate is installed.

[0009] Further, the grinding part includes a mounting base fixed on the operating table. A pushing cylinder is installed on the top of the mounting base and a waist-shaped hole is provided. The ejecting end of the pushing cylinder is fixed with a moving plate that is slidably connected to the mounting base. A semi-circular notch is provided at one end of the moving plate, and a belt grinding device is installed on the moving plate. The belt grinding device is located in the waist-shaped hole.

[0010] Further, the blanking assembly includes a side frame and an inclined slideway fixed on the operating table. A horizontal pushing cylinder is installed on the side frame. The ejecting end of the horizontal pushing cylinder is fixed with a horizontal pushing plate that slides on the side frame. A pushing cylinder is installed on the horizontal pushing plate, and a rotating cylinder fixed to the ejecting end of the pushing cylinder is slidably installed. The rotating end of the rotating cylinder is fixed with a clamping cylinder.

[0011] Further, the upward pushing assembly includes a bottom block fixed to the bottom of the operating table. A blanking cylinder and a U-shaped plate are installed on the bottom block. A guiding pipe is fixed to the bottom of the upper plate of the U-shaped plate. The ejecting end of the blanking cylinder is fixed with a top block that passes through the guiding pipe.

[0012] Further, two water guide pipes are installed on the middle section plate of the upper frame, and a dust suction port opposite to the pipe orifice of the water guide pipe is installed at the bottom of the upper frame.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] For this metal pipe grinding device, the product is placed into the working station through the feeding device, and the turntable rotates to make the product pass through the grinding assembly to complete the grinding treatment of the welding position. After the grinding is completed, the turntable then sends the product to the blanking assembly to complete blanking and collection. Therefore, it can realize automatic grinding treatment of local positions of the product, improve the safety during the processing, and also make the grinding uniform to improve the production efficiency. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a three-dimensional view of the grinding assembly in the present utility model;

[0017] Figure 3 It is a three-dimensional view of the blanking assembly in the present utility model;

[0018] Figure 4 It is a three-dimensional view of the upward pushing assembly in the present utility model;

[0019] Figure 5 It is a product schematic diagram of the present utility model.

[0020] In the figure: 1. Operating table; 2. Turntable; 4. Grinding assembly; 401. Mounting base; 402. Pushing cylinder; 403. Moving plate; 404. Slot hole; 405. Belt grinding device; 406. Base; 407. Lower top cylinder; 408. Guide frame plate; 409. Rotating block; 410. Belt drive device; 411. Upper frame; 412. Pressing cylinder; 413. Water guide pipe; 414. Dust suction port; 5. Bearing seat; 6. Placing pipe; 8. Upper top assembly; 801. Bottom block; 802. Material discharging cylinder; 803. U-shaped plate; 804. Guide pipe; 805. Top block; 9. Material feeding assembly; 901. Side frame; 902. Inclined slideway; 903. Horizontal pushing cylinder; 904. Horizontal pushing plate; 905. Pushing cylinder; 906. Rotary cylinder; 907. Clamping cylinder; 10. Feeding device; 11. Support; 12. Bracing plate. Detailed implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5 , a grinding device for metal pipes in this embodiment includes an operating table 1. A turntable 2 is installed at the center of the operating table 1. Multiple product placement stations are installed on the tabletop of the turntable 2. Three supports 11 distributed in a triangular shape are fixed on the operating table 1, a feeding device 10 and a material discharging assembly 9 distributed outside the turntable 2, and three groups of upper top assemblies 8 below the stations. Two of the three groups of upper top assemblies 8 are located below the feeding device 10 and the material discharging assembly 9. A bracing plate 12 slidably connected to the tabletop of the turntable 2 is fixed between the three supports 11. A grinding assembly 4 is installed between the bracing plate 12 and the operating table 1.

[0023] In summary, through the cooperation of the upper top assembly and the feeding device, the product can be clamped and placed into the station, realizing the function of automatic feeding, and reducing the collision between the product and the station. Then, the turntable drives the station to move the product to the grinding assembly in sequence to complete the grinding treatment of the weld, realizing automatic grinding, improving production efficiency and grinding consistency. Then, through the cooperation of the material discharging assembly and the upper top assembly, the product is removed, thus realizing cyclic automatic operation. At the same time, another group of upper top assemblies can detect unqualified grinding through external equipment and can lift and move it away through an external transplanting device.

[0024] Such as Figure 1 and 5, the station includes a bearing block 5 fixed on the tabletop of the turntable 2. An inner side of the bearing block 5 is fixed with a placement tube 6, and an annular platform is arranged inside the placement tube 6. The annular platform in the placement tube can play a role in limiting and supporting the product. When the grinding assembly grinds the product, under the action of the bearing block, the placement tube can be driven to rotate, so as to adjust the grinding surface of the product. Therefore, the outer weld of the product can be automatically ground flat.

[0025] As Figure 4 For the direction shown, the upper pushing assembly 8 includes a bottom block 801 fixed to the bottom of the operation table 1. A material discharging cylinder 802 and a U-shaped plate 803 are installed at the bottom of the bottom block 801. A guiding tube 804 is fixed to the bottom of the upper plate of the U-shaped plate 803. A top block 805 penetrating through the guiding tube 804 is fixed to the ejecting end of the material discharging cylinder 802, and the top block 805 can extend into the placement tube 6. When the feeding device places the product into the placement tube, under the guiding action of the guiding tube, the material discharging cylinder extends the top block into the placement tube. Then when the product is placed, the product is supported by the top block. Then the material discharging cylinder retracts to slowly place the product into the placement tube, avoiding damage caused by free fall and collision with the annular platform of the placement tube. Then when the discharging assembly is working, the product can be pushed up to facilitate the discharging assembly to clamp and move it away.

[0026] As Figure 2 For the direction shown, the grinding assembly 4 includes a grinding part installed on the operation table 1 and distributed opposite to the placement tube 6, a top rotating part installed below the station, and a pressing part installed on the support plate 12 above the station and on the same vertical horizontal line as the top rotating part. When the turntable drives the product to move between the pressing part and the top rotating part through the station, the product can be clamped by the pressing of the pressing part and the top rotating part to prevent deviation. Then the grinding of the weld is completed by the grinding part. During the grinding process, the pressing part will lift, the top rotating part rotates to adjust the grinding surface of the product, and then the pressing part presses again. Repeat the above steps until the outer surface of the product is ground.

[0027] Among them, the pressing part includes an upper frame 411 fixed on the support plate 12. The upper frame 411 is in an F shape. Between the two convex plates of the upper frame 411, a pressing cylinder 412 located above the placing pipe 6 is installed. At the bottom of the middle convex plate, a guiding pipe 804 is also installed. The ejecting end of the pressing cylinder 412 passes through the guiding pipe 804. On the middle convex plate of the upper frame 411, two water guide pipes 413 are installed, and at the bottom of the upper frame 411, a dust suction port 414 opposite to the pipe orifice of the water guide pipe 413 is installed. When the product is located below the pressing cylinder, the pressing cylinder presses down under the guidance of the guiding pipe, and cooperates with the placing pipe to detect and press the product, which can prevent the product from moving during the grinding process. Then, it cooperates with the water guide pipe to dissipate heat from the grinding end, avoiding product deformation caused by excessive temperature. At the same time, it can also reduce dust. Then, through the dust suction port, the overflowing dust can be adsorbed, so as to prevent the dust generated during the processing from floating in the air and being adsorbed by the human body and polluting the environment.

[0028] Meanwhile, the top-rotating part includes a base 406 installed at the bottom of the operating table 1. At the bottom of the base 406, a lower top cylinder 407 is installed. The ejecting end of the lower top cylinder 407 is fixed with a guiding frame plate 408 passing through the base 406. The length of the top plate of the guiding frame plate 408 is greater than that of the bottom plate. On the top plate of the guiding frame plate 408, a rotating block 409 is rotatably installed below the placing pipe 6, and a belt transmission device 410 connected to the rotating block 409 in a transmission manner is installed. By driving the guiding frame plate to move upward by the lower top cylinder, the rotating block can be made to closely adhere to the placing pipe. Cooperating with the pressing part, the product can be clamped and fixed. When the pressing part retracts, the rotating block can be driven to rotate through the belt transmission device. Therefore, the placing pipe can be driven to rotate by the rotating block, so as to realize the adjustment of the grinding surface of the product.

[0029] In addition, the grinding part includes a mounting seat 401 fixed on the operating table 1. On the top of the mounting seat 401, a pushing cylinder 402 is installed and a waist-shaped hole 404 is provided. The ejecting end of the pushing cylinder 402 is fixed with a moving plate 403 slidably connected to the mounting seat 401. The side of the moving plate 403 opposite to the placing pipe 6 is a semi-circular notch. A belt grinding device 405 is installed on the moving plate 403. The belt grinding device 405 is composed of multiple guide wheels winding a sand belt and driving the sand belt to drive and grind through the cooperation of the driving end and the guidance of the guide wheels. The driving end of the belt grinding device 405 is located in the waist-shaped hole 404. After the pressing part and the top-rotating part clamp and position the product, the pushing cylinder drives the moving plate to advance, so that the sand belt of the belt grinding device is attached to the weld position of the product. Under the action of the waist-shaped hole, during the advancement of the moving plate, the driving end is not restricted. Then the driving end operates, and the grinding process is completed through the sand belt, thus realizing automatic grinding.

[0030] As Figure 3In the direction shown, the unloading assembly 9 includes a side frame 901 fixed on the operating table 1 and an inclined slide 902 located on the right side of the side frame 901. Two convex plates are formed at the tail end of the inclined slide 902. A horizontal push cylinder 903 is installed on the back of the side frame 901, and a horizontal push plate 904 of the horizontal push cylinder 903 connected to the ejection end of the horizontal push cylinder 903 is slidably connected to the front. A push cylinder 905 is installed on the top of the horizontal push plate 904, and a rotating cylinder 906 fixed to the ejection end of the push cylinder 905 is slidably installed. A clamping cylinder 907 is fixed to the rotating end of the rotating cylinder 906. The horizontal push plate is driven to move by the horizontal push cylinder, which can drive the clamping cylinder to adjust its position, and then the clamping cylinder can be made close to the product in cooperation with the push cylinder, and the product is clamped by the clamping cylinder, and the product is made to lie horizontally on the inclined slide in cooperation with the rotating cylinder, and rolls freely, and is placed by the convex plate limit, which is convenient for subsequent collection.

[0031] The working principle of the above embodiment is:

[0032] First, the material return cylinder drives the top block to extend into the placement tube, and the loading device cooperates with the turntable to place the products into the placement tube in turn. At the same time, the top block is used to place the products to reduce collision. When the product is between the clamping cylinder and the turn block, the clamping cylinder and the lower cylinder are operated, and the product is clamped by the turn block and the clamping cylinder. Then, the cylinder is pushed through the moving plate to drive the sanding belt of the belt grinding device to fit the product. The belt grinding device completes the grinding of the product, and then retreats through the clamping cylinder. At this time, the belt transmission device drives the turn block to rotate, thereby gradually rotating and adjusting the grinding of the product. The surface, the clamping cylinder still needs to be clamped during grinding until the product is polished, and then it is transferred to the second set of upper jacking components through the turntable. It can cooperate with external equipment to detect the grinding position. When the grinding is unqualified, the upper jacking component will lift the product for easy removal. At the same time, when the polished product moves to the bottom of the clamping cylinder, the upper jacking component will also lift the product to a certain height first, and then cooperate with the horizontal push cylinder and the push cylinder to move the clamping cylinder to the product for clamping. During the clamping and fixed transfer process, the rotating cylinder drives the clamping cylinder to adjust the direction of the product so that the product can be collected horizontally on the inclined slide.

[0033] In summary, automated loading, grinding and unloading can reduce workers' contact and improve safety. At the same time, automation can also improve production efficiency and grinding consistency.

[0034] The entire workflow is completed, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for metal pipes, characterized in that: It includes an operating table (1), on which a turntable (2) is installed. Multiple workstations are installed on the tabletop of the turntable (2). A plurality of brackets (11) are fixed on the operating table (1), and a loading device (10) and a blanking assembly (9) distributed around the turntable (2), as well as a plurality of upward pushing assemblies (8) below the workstations. A support plate (12) slidably connected to the tabletop of the turntable (2) is fixed between the plurality of brackets (11). A grinding assembly (4) is installed between the support plate (12) and the operating table (1). The grinding assembly (4) includes a grinding part installed on the operating table (1), a top rotating part below the workstation, and a pressing part installed on the support plate (12) above the workstation and on the same vertical horizontal line as the top rotating part.

2. The grinding device for a metal pipe according to claim 1, characterized in that: The workstation includes a bearing seat (5) fixed on the tabletop of the turntable (2). A placement tube (6) is fixed inside the bearing seat (5), and an annular platform is arranged inside the placement tube (6).

3. The grinding device for a metal pipe according to claim 2, characterized in that: The pressing part includes an upper frame (411) fixed on the support plate (12), and a pressing cylinder (412) located above the placement tube (6) is installed on the upper frame (411).

4. A grinding device for metal pipes according to claim 3, characterized in that: The top rotating part includes a base (406) installed at the bottom of the operating table (1). A lower top cylinder (407) is installed at the bottom of the base (406). The top end of the lower top cylinder (407) is fixed with a guiding frame plate (408) passing through the base (406). A rotating block (409) is rotatably installed below the placement tube (6) on the guiding frame plate (408), and a belt transmission device (410) for driving the rotating block (409) to rotate is installed.

5. A grinding device for metal pipes according to claim 4, characterized in that: The grinding part includes a mounting seat (401) fixed on the operating table (1). A pushing cylinder (402) is installed at the top of the mounting seat (401), and a waist-shaped hole (404) is provided. The top end of the pushing cylinder (402) is fixed with a moving plate (403) slidably connected to the mounting seat (401). One end of the moving plate (403) is provided with a semi-circular notch, and a belt grinding device (405) is installed on the moving plate (403). The belt grinding device (405) is located in the waist-shaped hole (404).

6. The grinding device for a metal pipe according to claim 1, characterized in that: The blanking assembly (9) includes a side frame (901) and an inclined slideway (902) fixed on the operating table (1). A horizontal pushing cylinder (903) is installed on the side frame (901). The top end of the horizontal pushing cylinder (903) is fixed with a horizontal pushing plate (904) slidable on the side frame (901). A pushing cylinder (905) and a rotating cylinder (906) slidably installed and fixed to the top end of the pushing cylinder (905) are installed on the horizontal pushing plate (904). A clamping cylinder (907) is fixed to the rotating end of the rotating cylinder (906).

7. A grinding device for metal pipes according to claim 6, characterized in that: The upward pushing assembly (8) includes a bottom block (801) fixed at the bottom of the operating table (1). A material discharging cylinder (802) and a U-shaped plate (803) are installed on the bottom block (801). A guiding tube (804) is fixed to the bottom of the upper plate of the U-shaped plate (803). The top end of the material discharging cylinder (802) is fixed with a top block (805) passing through the guiding tube (804).

8. The grinding device for a metal pipe according to claim 3, wherein: Two water conduits (413) are installed on the middle section plate of the upper rack (411), and a dust suction port (414) opposite to the pipe orifice of the water conduit (413) is installed at the bottom of the upper rack (411).

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