A double-end grinding device for valves

Abstract

The utility model discloses a double-end surface grinding device for a valve, comprising a positioning mechanism, a grinding mechanism and a driving mechanism. The positioning mechanism comprises a frame and a plurality of clamping plates slidably connected to the frame. The frame is provided with a first driving component, the first driving component is used to drive the clamping plates to slide, and make the plurality of clamping plates respectively press against two sides of the valve; the grinding mechanism comprises two grinding wheels rotatably connected to the frame, the two grinding wheels are respectively located at two ends of the valve, and the frame is provided with a second driving component for driving the grinding wheels to rotate; the driving mechanism is arranged on the frame, the driving mechanism is used to drive the two grinding wheels to slide in opposite directions, and make the two grinding wheels respectively press against two ends of the valve. The beneficial effects of the utility model are as follows: under the action of the positioning mechanism, the valve is fixed, under the action of the driving mechanism, the two grinding wheels are respectively pressed against two ends of the valve, and the grinding mechanism grinds the two end surfaces of the valve at the same time, thereby improving the grinding quality and grinding efficiency.

Description

Technical Field

[0001] The utility model relates to the field of valve production, in particular to a double-end surface grinding device for valves. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. Before welding the valve, the end face of the valve needs to be polished, rust-removed, and polished.

[0003] In the related technology, an end face grinding device for valve processing is proposed, including a mounting plate, a fixing plate is fixedly connected to the upper surface of the mounting plate, a cross plate is fixedly connected to the upper surface of the fixing plate, a hydraulic cylinder is fixedly connected to the upper surface of the cross plate, a hydraulic rod is arranged on the lower surface of the hydraulic cylinder, an output end of the hydraulic rod is fixedly connected to a fixing frame, a motor is fixedly connected to the inside of the fixing frame, a protective cover is fixedly connected to the output end of the motor, a grinding wheel is fixedly connected to the inner top wall of the protective cover, and the inner top wall of the protective cover is located on the right side of the grinding wheel and is fixedly connected to the grinding plate.

[0004] With regard to the above-mentioned related technologies, the following defects exist: during the production process of the valve, both end faces of the valve need to be polished, and the above-mentioned polishing device can only polish one end face of the valve at a time, which not only affects the production efficiency, but also requires secondary positioning when polishing the other end face of the valve, which affects the polishing accuracy and the production quality. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and to provide a double-end-face grinding device for valves, so as to solve the technical problem that the two end faces of valves in the prior art need to be ground in stages.

[0006] In order to achieve the above technical purpose, the utility model provides a technical solution for a double-end surface grinding device for a valve, including a positioning mechanism, the positioning mechanism includes a frame and a plurality of clamping plates slidably connected to the frame, the frame is provided with a first driving component, the first driving component is used to drive the clamping plates to slide, and make the plurality of clamping plates respectively press against both sides of the valve;

[0007] A grinding mechanism, the grinding mechanism comprising two grinding wheels rotatably connected to the frame, the two grinding wheels are respectively located at two ends of the valve, and the frame is provided with a second driving assembly for driving the grinding wheels to rotate; and,

[0008] A driving mechanism is arranged on the frame, and is used for driving the two grinding wheels to slide in opposite directions, and making the two grinding wheels respectively press against the two ends of the valve.

[0009] In some embodiments, the first driving assembly includes a plurality of hydraulic cylinders disposed on a frame, and piston rods of the plurality of hydraulic cylinders are respectively connected to a plurality of clamping plates.

[0010] In some embodiments, a non-slip layer is provided on one side of the plurality of clamping plates close to the valve.

[0011] In some embodiments, the second driving assembly includes two synchronous motors disposed on a frame, and the output shafts of the two synchronous motors are coaxially connected to two grinding wheels respectively.

[0012] In some embodiments, the driving mechanism includes two support plates connected to the frame along the axial direction of the valve, the frame is provided with a slide groove for the two support plates to slide, the two synchronous motors are respectively arranged on the two support plates, a double-headed screw rod is rotatably connected to the frame, the extension direction of the double-headed screw rod is the same as the extension direction of the slide groove, the two ends of the double-headed screw rod respectively pass through the two support plates and are threadedly connected to the two support plates, and the frame is provided with a power component for driving the double-headed screw rod to rotate.

[0013] In some embodiments, the power assembly includes a servo motor disposed on a frame, a driving gear is disposed on an output shaft of the servo motor, and a driven gear meshing with the driving gear is disposed on the double-ended lead screw.

[0014] In some embodiments, an isolation cover is provided on the support plate around the grinding wheel.

[0015] In some embodiments, a dust box and a pump body are provided on the frame, the dust box and the pump body are connected through a first tube body, a second tube body connected to the dust box is provided on the dust box, and an opening of the second tube body is located on one side of the grinding wheel.

[0016] In some embodiments, a filter plate is disposed in the first tube.

[0017] In some embodiments, both ends of the filter plate on the first tube are coaxially rotatably connected with fixing rings, and the two fixing rings are coaxially threadedly connected to the two ends of the filter plate.

[0018] Compared with the prior art, the beneficial effects of the utility model include: under the action of the first driving component, multiple clamps fix the valve; under the action of the driving mechanism, two grinding wheels are respectively pressed against the two ends of the valve; under the action of the second driving component, the two grinding wheels rotate and grind the two end faces of the valve at the same time, thereby improving the grinding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of a valve double-end surface grinding device provided by the utility model.

[0020] Description of reference numerals:

[0021] 1 positioning mechanism, 11-frame, 12-clamping plate, 13-first drive assembly, 131-hydraulic cylinder, 15-anti-slip layer, 16-slideway, 2-grinding mechanism, 21-grinding wheel, 22-second drive assembly, 23-synchronous motor, 3-drive mechanism, 31-support plate, 32-double-headed screw, 33-power assembly, 34-servo motor, 35-driving gear, 36-driven gear, 4-valve, 5-isolation cover, 51-dust box, 52-pump body, 53-first tube body, 54-second tube body, 55-filter plate, 56-fixing ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The utility model provides a double-end surface grinding device for valves, the structure of which is as follows: Figure 1 As shown, it includes a positioning mechanism 1, a grinding mechanism 2 and a driving mechanism 3.

[0024] The positioning mechanism 1 includes a frame 11 and two clamping plates 12 connected to the frame 11 along the radial sliding direction of the valve 4. The clamping plates 12 are arc-shaped and fit against the outer wall of the valve 4. The two clamping plates 12 are symmetrically distributed. A first driving component 13 is provided on the frame 11. The first driving component 13 is used to drive the clamping plates 12 to slide and make the multiple clamping plates 12 respectively press against both sides of the valve 4.

[0025] The grinding mechanism 2 includes two grinding wheels 21 rotatably connected to the frame 11. The two grinding wheels 21 are respectively located at two ends of the valve 4. Both grinding wheels 21 are coaxial with the valve 4. The frame 11 is provided with a second driving component 22 for driving the grinding wheels 21 to rotate.

[0026] The driving mechanism 3 is disposed on the frame 11 , and is used to drive the two grinding wheels 21 to slide in opposite directions along the axial direction of the valve 4 , and to make the two grinding wheels 21 press against two ends of the valve 4 , respectively.

[0027] When in use, the first drive assembly 13 drives the two clamping plates 12 to slide in the opposite direction along the radial direction of the valve 4 until the two clamping plates 12 are respectively pressed against the two sides of the valve 4, and the valve 4 is fixed. The second drive assembly 22 drives the grinding wheel 21 to rotate. The drive mechanism 3 drives the two grinding wheels 21 to slide in the opposite direction along the axial direction of the valve 4 until the two grinding wheels 21 are respectively pressed against the two ends of the valve 4, thereby grinding the end surface of the valve 4. The grinding quality and grinding efficiency are improved.

[0028] In the utility model, under the action of the first driving component 13, the plurality of clamps 12 fix the valve 4, under the action of the driving mechanism 3, the two grinding wheels 21 are respectively pressed against the two ends of the valve 4, and under the action of the second driving component 22, the two grinding wheels 21 rotate and grind the two end faces of the valve 4 at the same time, thereby improving the grinding quality and grinding efficiency.

[0029] To drive the two clamping plates 12 to move, please refer to Figure 1 In a preferred embodiment, the first driving assembly 13 includes two hydraulic cylinders 131 installed on the frame 11, and the piston rods of the two hydraulic cylinders 131 are respectively fixedly connected to the sides of the two clamping plates 12 that are far away from each other.

[0030] When in use, the hydraulic cylinder 131 is started, and the two hydraulic cylinders 131 respectively drive the two clamping plates 12 to slide along the radial direction of the valve 4 toward the valve 4 until the two clamping plates 12 are respectively pressed against the two sides of the valve 4. The hydraulic cylinder 131 operates stably and has strong power, which improves the stability of the valve 4.

[0031] To improve the stability of valve 4, please refer to Figure 1 In a preferred embodiment, a non-slip layer 15 is bonded to one side of the clamping plate 12 close to the valve 4, and the non-slip layer 15 is a rubber pad.

[0032] When in use, the provision of the anti-skid layer 15 increases the friction between the clamping plate 12 and the valve 4 , reduces the possibility of slipping, and further improves the stability of the fixing of the valve 4 .

[0033] In order to drive the two grinding wheels 21 to rotate synchronously, please refer to Figure 1 In a preferred embodiment, the second driving assembly 22 includes two synchronous motors 23 mounted on the frame 11 , and the output shafts of the two synchronous motors 23 are coaxially fixedly connected to the sides of the two grinding wheels 21 that are far away from each other.

[0034] When in use, the two synchronous motors 23 are started, and the two synchronous motors 23 drive the two grinding wheels 21 to rotate respectively, thereby simultaneously grinding the two end faces of the valve 4. The two synchronous motors 23 run synchronously, thereby improving the consistency of grinding the two end faces of the valve 4 and improving the grinding quality.

[0035] In order to drive the two grinding wheels 21 to slide synchronously in opposite directions, please refer to Figure 1 In a preferred embodiment, the driving mechanism 3 includes two support plates 31 slidably connected to the frame 11 along the axial direction of the valve 4, and the frame 11 is provided with a slide groove 16 for the two support plates 31 to slide. The two synchronous motors 23 are respectively installed on the two support plates 31, and a double-headed screw rod 32 is rotatably connected to the frame 11. The extension direction of the double-headed screw rod 32 is the same as the extension direction of the slide groove 16. The double-headed screw rod 32 is located between the two support plates 31, and the two ends of the double-headed screw rod 32 respectively pass through the two support plates 31 and are threadedly connected to the two support plates 31. The frame 11 is provided with a power component 33 for driving the double-headed screw rod 32 to rotate.

[0036] When in use, the power assembly 33 drives the double-headed screw 32 to rotate, and the double-headed screw 32 drives the two support plates 31 to slide synchronously along the slide groove 16, and the two support plates 31 drive the two grinding wheels 21 to slide synchronously. Thereby, the consistency of grinding the two end faces of the valve 4 is improved, and the grinding quality is improved.

[0037] To drive the double-ended screw 32 to rotate, please refer to Figure 1 In a preferred embodiment, the power assembly 33 includes a servo motor 34 mounted on the frame 11, the servo motor 34 is located between the two support plates 31, a driving gear 35 is coaxially fixedly connected to the output shaft of the servo motor 34, and a driven gear 36 meshing with the driving gear 35 is coaxially fixedly connected to the double-headed screw 32.

[0038] When in use, the servo motor 34 drives the driving gear 35 to rotate, the driving gear 35 drives the driven gear 36 to rotate, and the driven gear 36 drives the double-headed screw 32 to rotate. The structure is simple and the transmission is efficient.

[0039] To avoid metal chips flying around during grinding, please refer to Figure 1 In a preferred embodiment, an isolation cover 5 is fixedly connected to the support plate 31 on the peripheral side of the grinding wheel 21 .

[0040] When the grinding wheel 21 is used to grind the end surface of the valve 4, a large amount of metal debris will be generated, and the metal debris will fly everywhere, which not only pollutes the environment, but also easily injures people and has low safety. Under the isolation effect of the isolation cover 5, the possibility of metal debris flying everywhere is reduced, and the safety and cleanliness of the environment are improved.

[0041] To collect metal chips, please refer to Figure 1In a preferred embodiment, a dust box 51 and a pump body 52 are installed on the frame 11, and the dust box 51 and the pump body 52 are connected through a first tube body 53. One end of the dust box 51 away from the pump body 52 is fixedly connected to a second tube body 54 connected to the dust box 51, and the opening of the second tube body 54 is located on one side of the two grinding wheels 21. It should be noted that the first tube body 53 and the second tube body 54 are both hoses.

[0042] When in use, the pump body 52 is started, and under the suction of the pump body 52, the metal scraps pass through the second tube body 54 and enter the dust box 51. The centralized collection of the metal scraps not only purifies the environment, but also facilitates the subsequent recycling and processing, thereby improving the production efficiency.

[0043] To avoid damage to the pump body 52, please refer to Figure 1 In a preferred embodiment, a filter plate 55 is provided in the first tube body 53 .

[0044] When in use, under the isolation effect of the filter plate 55, the possibility of metal debris entering the pump body 52 is further reduced, the possibility of damage to the pump body 52 is reduced, and the production cost is reduced.

[0045] To facilitate the installation and removal of the filter plate 55, please refer to Figure 1 In a preferred embodiment, both ends of the filter plate 55 on the first tube body 53 are coaxially rotatably connected with fixing rings 56 , and the two fixing rings 56 are coaxially threadedly connected to both ends of the filter plate 55 .

[0046] When in use, when installing the filter plate 55, place the filter plate 55 between the two sections of the first tube body 53, and screw the two fixing rings 56 to the two ends of the filter plate 55. When removing the filter plate 55, screw the two fixing rings 56 out from the two ends of the filter plate 55, and then remove the filter plate 55. The filter plate 55 is fixed firmly and easy to disassemble and assemble, which makes it easy to clean or replace the filter plate 55, thereby improving production efficiency.

[0047] In order to better understand the present invention, the following Figure 1 The working principle of the technical solution of the double-end surface grinding device of the utility model is described in detail: the first driving component 13 drives the two clamping plates 12 to slide in the opposite direction along the radial direction of the valve 4 until the two clamping plates 12 are respectively pressed against the two sides of the valve 4, and the valve 4 is fixed. The second driving component 22 drives the grinding wheel 21 to rotate. The driving mechanism 3 drives the two grinding wheels 21 to slide in the opposite direction along the axial direction of the valve 4 until the two grinding wheels 21 are respectively pressed against the two ends of the valve 4, thereby grinding the end surface of the valve 4. The grinding quality and grinding efficiency are improved.

[0048] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A double-end grinding device for valves, characterized in that: include: A positioning mechanism, the positioning mechanism comprises a frame and a plurality of clamping plates slidably connected to the frame, the frame is provided with a first driving assembly, the first driving assembly is used to drive the clamping plates to slide, and make the plurality of clamping plates respectively press against two sides of the valve; A grinding mechanism, the grinding mechanism comprising two grinding wheels rotatably connected to the frame, the two grinding wheels are respectively located at two ends of the valve, and the frame is provided with a second driving assembly for driving the grinding wheels to rotate; and, A driving mechanism is arranged on the frame, and is used for driving the two grinding wheels to slide in opposite directions, and making the two grinding wheels respectively press against the two ends of the valve.

2. A valve double end surface grinding device according to claim 1, characterized in that: The first driving assembly includes a plurality of hydraulic cylinders arranged on a frame, and piston rods of the plurality of hydraulic cylinders are respectively connected to a plurality of clamping plates.

3. A valve double end surface grinding device according to claim 1, characterized in that: A non-slip layer is provided on one side of the plurality of clamping plates close to the valve.

4. A valve double end surface grinding device according to claim 1, characterized in that: The second driving assembly includes two synchronous motors arranged on a frame, and the output shafts of the two synchronous motors are coaxially connected to two grinding wheels respectively.

5. A valve double end surface grinding device according to claim 4, characterized in that: The driving mechanism includes two support plates connected to the frame along the axial direction of the valve, the frame is provided with a slide groove for the two support plates to slide, the two synchronous motors are respectively arranged on the two support plates, a double-headed screw rod is rotatably connected to the frame, the extension direction of the double-headed screw rod is the same as the extension direction of the slide groove, the two ends of the double-headed screw rod respectively pass through the two support plates and are threadedly connected to the two support plates, and the frame is provided with a power component for driving the double-headed screw rod to rotate.

6. A valve double end surface grinding device according to claim 5, characterized in that: The power assembly comprises a servo motor arranged on a frame, a driving gear is arranged on an output shaft of the servo motor, and a driven gear meshing with the driving gear is arranged on the double-headed lead screw.

7. A valve double end surface grinding device according to claim 5, characterized in that: An isolation cover is provided on the support plate at the peripheral side of the grinding wheel.

8. The double-end surface grinding device for valves according to claim 1, characterized in that: The frame is provided with a dust box and a pump body, the dust box and the pump body are connected through a first tube body, the dust box is provided with a second tube body connected with the dust box, and the opening of the second tube body is located at one side of the grinding wheel.

9. A valve double end surface grinding device according to claim 8, characterized in that: A filter plate is disposed in the first tube body.

10. A valve double end surface grinding device according to claim 9, characterized in that: Both ends of the first tube body located on the filter plate are coaxially rotatably connected with fixing rings, and the two fixing rings are coaxially threadedly connected to the two ends of the filter plate.

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