Efficient grinding machining device for water heater parts

Abstract

The invention provides an efficient grinding machining device for water heater parts, relates to the technical field of part machining, and aims to solve the problems that an existing device is low in grinding efficiency, lack of rotation stability detection and tedious in grinding wheel replacement. The two telescopic frames with the top wheels are arranged on the base, the top wheels abut against the lower end of the pipe fitting, when the pipe fitting is rotationally ground, if vibration occurs, the top wheels transmit the vibration to the telescopic frames to drive the lifting plate to slide, the sliding plate is pulled to observe whether an inserting rod can penetrate through a communicating hole to be inserted into a datum hole or not, and the rotating stability of the pipe fitting can be rapidly judged; the problems of abrasion of the fixing tool, non-coaxiality of pipe fittings and the like can be found and adjusted in time, pipe body precision deviation caused by vibration is avoided, and the machining quality and the product percent of pass are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of parts processing technology, and in particular to a high-efficiency grinding processing device for water heater parts. Background Technology

[0002] As a common household kitchen and bathroom appliance, water heaters contain various metal pipe components, mostly made of stainless steel, copper, and other metals. These components are the core foundation for ensuring the normal water supply, heating, and safe operation of the water heater. The processing precision and surface quality of the metal pipe components directly affect their assembly sealing, corrosion resistance, and service life. Grinding is a key process in the precision machining of these components. It is mainly used to remove oxide scale, rust, burrs, and processing scratches from the surface of the metal pipe, correct deviations in the roundness and cylindricity of the pipe, and make the surface of the pipe reach the preset flatness and smoothness precision to meet the requirements of subsequent assembly, surface treatment, and performance. At the same time, it improves the overall structural stability and durability of the component. Currently, for the grinding of metal pipe components of water heaters, existing technologies mostly use general-purpose steel pipe grinding equipment or semi-automatic grinding devices.

[0003] However, there are still some shortcomings in the current design of grinding devices for water heater parts: First, existing grinding equipment has low grinding efficiency for water heater pipe components. In actual use, the grinding range of existing equipment is fixed and cannot be flexibly adjusted according to the size and specifications of the parts to be processed. When grinding long shaft metal pipes, the grinding equipment needs to be driven to move repeatedly along the axis of the part to complete the grinding of the entire length. This processing method is not only inefficient, but also requires a longer processing time, which is difficult to meet the production requirements of large-scale and efficient industrial processing. Secondly, existing grinding equipment lacks relevant tools for assisting in testing the stability of part installation. After long-term repeated use, the fixing structure of the part will inevitably wear out. If the worn fixing structure is used to drive the part for rotary grinding, it is very easy to cause misalignment on both sides of the part, which will cause the part to vibrate slightly during the grinding process. This vibration will directly affect the machining accuracy of the part, causing the surface roughness and dimensional deviation of the machined part to exceed the preset standards, greatly reducing the machining quality of the part and failing to meet the high-precision requirements of metal pipe components for water heaters. Summary of the Invention

[0004] In view of the above problems, one object of the present invention is to overcome these shortcomings, and more specifically, to provide a high-efficiency grinding processing device for water heater parts, which can improve the grinding efficiency of workpieces, assist in detecting the stability of workpiece installation, and ensure the processing quality of workpieces.

[0005] In a first aspect, this invention provides a high-efficiency grinding processing device for water heater components, specifically comprising: a main body; the main body having a rectangular structure, with a rectangular groove inside, a fixing groove at the middle position of the front and rear sides of the main body, and a side groove at the middle position of the left and right sides of the main body, and a receiving component installed in the rectangular groove inside the main body; a fixing frame installed at the upper end of the main body, with the lower ends of both sides of the fixing frame fixed in the side grooves, and a base placed on top of the fixing frame, the base being able to slide horizontally along the upper end surface of the fixing frame; a mounting frame provided at the rear side of the main body, the lower end of the mounting frame being inserted and fixed into the fixing groove at the rear side of the main body, a lifting frame provided inside the mounting frame, the inner side of the lifting frame having a through-type connecting groove, a drive gear controlled by a motor rotatably mounted at the upper end of the lifting frame, the lower end of the drive gear passing through the connecting groove, a movable frame slidably mounted inside the lifting frame, the movable frame being able to slide horizontally on the lifting frame, and a rack fixedly mounted at the upper end of the movable frame, the rack being connected to the drive gear in a transmission.

[0006] Preferably, a movable groove is fixedly provided on the inner side of the fixed frame, and a lead screw is rotatably installed inside the movable groove.

[0007] Preferably, a fixed seat is provided on the upper left side of the fixed frame, a chuck controlled by a motor is rotatably installed on the right side of the fixed seat, a sliding seat is connected to the movable slot through a screw drive, and a top head is rotatably installed on the left side of the sliding seat.

[0008] Preferably, the base has symmetrically arranged sliding grooves at both ends, and a connecting hole is provided below each set of sliding grooves. A sliding plate is provided inside the base, and the sliding plate can slide horizontally inside the base. A plug rod is fixedly installed on the sliding plate, and the plug rod can be inserted and cooperate with the connecting hole.

[0009] Preferably, telescopic frames are provided on the upper ends of both sides of the base. The telescopic frames are slidably engaged with the corresponding slots by springs, and a top wheel is rotatably installed on the upper end of the telescopic frame. Tightening bolts are threaded on the side ends of the telescopic frames.

[0010] Preferably, a lifting plate is slidably provided inside the telescopic frame. The lifting plate can slide up and down on the telescopic frame and can contact the end of the tightening bolt. A reference hole is provided on the inner side of the lower end of the lifting plate.

[0011] Preferably, a hydraulic cylinder is fixedly installed on the top of the mounting frame, and a transmission rod is fixedly installed on the top of the lifting frame. The transmission rod is slidably engaged with the mounting frame, and the upper end of the transmission rod is fixed to the piston rod of the hydraulic cylinder.

[0012] Preferably, a drive screw controlled by a motor is rotatably mounted on the lower inner side of the movable frame, and slots are provided on both sides of the outer wall of the drive screw, and limit components are threadedly installed at both ends of the drive screw.

[0013] Preferably, grinding wheels are equidistantly mounted on the outside of the drive screw. Each set of grinding wheels has a locking block on its inner side, which engages with a locking groove. Each set of grinding wheels has a mating groove and a mating block on its mating end face. The mating blocks on the outer end faces of two sets of grinding wheels that are mated with each other are inserted into the mating grooves on the opposite grinding wheel. The equidistantly mounted grinding wheels are located in the center of the drive screw, and the limiting member can abut against the side end of the grinding wheel.

[0014] This invention provides a high-efficiency grinding device for water heater parts, which has the following advantages: 1. In this invention, by rotating and installing a drive screw on the movable frame, a grinding wheel can be assembled and installed at the outer end of the drive screw according to the size and length of the water heater pipe fitting. This ensures that the grinding range of the grinding wheel exactly covers the length of the pipe fitting, allowing the pipe fitting to be ground in one go without having to drive the entire grinding device to move laterally along the pipe fitting axis. At the same time, the movable frame can be driven to slide slightly along the lifting frame through the transmission cooperation of the drive gear and rack, finely adjusting the grinding position. This effectively solves the problems of fixed grinding range and low processing efficiency of existing devices, further shortening the processing time and adapting to the needs of large-scale and efficient industrial processing.

[0015] 2. In this invention, a base is placed on a fixed frame, and two sets of telescopic frames with top wheels are set on the base. The top wheels are placed against the lower end of the pipe fitting. When the pipe fitting is rotated and ground, if vibration occurs, the top wheels will transmit the vibration to the telescopic frames, causing the lifting plate to slide. By pulling the sliding plate, it can be observed whether the insertion rod can penetrate the connecting hole and the reference hole. The rotational stability of the pipe fitting can be quickly judged, and problems such as wear of the fixed tooling and misalignment of the pipe fitting can be detected and adjusted in time. This avoids pipe body precision deviation caused by vibration and ensures processing quality and product qualification rate.

[0016] 3. In this invention, the grinding wheel is rigidly connected to the drive screw by engaging with the locking block and the locking groove. Multiple sets of grinding wheels are fixed together by mating grooves and mating blocks. Both ends are limited by limiting members. When replacing the grinding wheel, simply move the limiting members to both sides of the drive screw, and then slide the mated grinding wheels to both sides. The grinding wheel can be quickly removed from the drive screw without the need for special tools, simplifying the replacement process, shortening the replacement time, reducing equipment downtime, and improving equipment operation and maintenance efficiency and processing continuity. Attached Figure Description

[0017] The following accompanying drawings will provide a better understanding of the invention by those skilled in the art, and will more clearly demonstrate the advantages of the invention. The drawings described herein are for illustrative purposes only, representing selected embodiments and not all possible implementations, and are not intended to limit the scope of the invention.

[0018] In the attached diagram: Figure 1A three-dimensional structural schematic diagram according to an embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram of the rear three-dimensional structure according to an embodiment of the present invention is shown.

[0020] Figure 3 An exploded schematic diagram according to an embodiment of the present invention is shown.

[0021] Figure 4 A schematic diagram of the connection structure between the main body and the fixing frame according to an embodiment of the present invention is shown.

[0022] Figure 5 A schematic diagram of the connection structure between the mounting frame and the movable frame according to an embodiment of the present invention is shown.

[0023] Figure 6 A schematic diagram of the three-dimensional structure of the mobile frame according to an embodiment of the present invention is shown.

[0024] Figure 7 A schematic diagram of the base structure according to an embodiment of the present invention is shown.

[0025] Figure 8 A schematic diagram of the disassembled structure of the base according to an embodiment of the present invention is shown.

[0026] Figure 9 A cross-sectional schematic diagram of the telescopic frame according to an embodiment of the present invention is shown.

[0027] Figure 10 A schematic diagram of the grinding wheel assembly effect according to an embodiment of the present invention is shown.

[0028] List of reference numerals 1. Main body; 101. Fixed groove; 102. Side groove; 103. Receiver; 2. Fixed frame; 201. Movable groove; 202. Fixed base; 2021. Chuck; 203. Sliding base; 2031. Top head; 3. Base; 301. Slide groove; 302. Connecting hole; 303. Sliding plate; 3031. Insert rod; 304. Telescopic frame; 3041. Top wheel; 3042. Tightening bolt; 305, Lifting plate; 3051, Reference hole; 4, Mounting bracket; 401, Hydraulic cylinder; 402, Lifting frame; 4021, Transmission rod; 403, Connecting groove; 404, Drive gear; 5, Moving frame; 501, Rack; 502, Drive screw; 5021, Slot; 5022, Limiting component; 503, Grinding wheel; 5031, Locking block; 5032, Mating groove; 5033, Mating block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 10 As shown: This invention provides a high-efficiency grinding processing device for water heater parts, comprising: a main body 1; the main body 1 has a rectangular structure, with a rectangular groove inside, a fixing groove 101 at the middle position of the front and rear sides of the main body 1, and a side groove 102 at the middle position of the left and right sides of the main body 1; a receiving component 103 is installed in the rectangular groove inside the main body 1; a fixing frame 2 is installed on the upper end of the main body 1, the lower ends of both sides of the fixing frame 2 are fixed in the side grooves 102, and a base 3 is placed on top of the fixing frame 2, the base 3 being able to slide horizontally along the upper end surface of the fixing frame 2; and a mounting bracket is provided on the rear side of the main body 1. The lower end of the mounting frame 4 is inserted and fixed to the fixing groove 101 on the rear side of the main body 1. The inner side of the mounting frame 4 is provided with a lifting frame 402, and the inner side of the lifting frame 402 is provided with a through-type connecting groove 403. The upper end of the lifting frame 402 is rotatably mounted with a drive gear 404 controlled by a motor. The lower end of the drive gear 404 passes through the connecting groove 403. The movable frame 5 is slidably mounted inside the lifting frame 402. The movable frame 5 can slide horizontally on the lifting frame 402. The upper end of the movable frame 5 is fixedly provided with a rack 501, and the rack 501 is connected to the drive gear 404 for transmission.

[0031] In embodiments of the present invention, such as Figure 4 As shown, a movable groove 201 is fixedly provided on the inner side of the fixed frame 2, and a lead screw is rotatably installed inside the movable groove 201; a fixed seat 202 is provided on the upper left side of the fixed frame 2, and a chuck 2021 controlled by a motor is rotatably installed on the right side of the fixed seat 202; a sliding seat 203 is connected to the movable groove 201 through a lead screw drive, and a top head 2031 is rotatably installed on the left side of the sliding seat 203; the fixed frame 2 is provided so that the fixed seat 202 can be installed on the fixed frame 2; the movable groove 201 is provided so that the sliding seat 202 can be rotatably installed. 3. It is slidably installed onto the fixed frame 2 via the movable groove 201; a fixed seat 202 is provided, on which a chuck 2021 can be installed; the chuck 2021 is provided, which can be used to grind the water heater pipe fittings, and the rotation of the chuck 2021 can drive the water heater pipe fittings to rotate for processing; a sliding seat 203 is provided, and by pressing the conical top 2031 on the sliding seat 203 against the right side of the pipe fitting, it can be ensured that the pipe fitting remains stable when the chuck 2021 drives the pipe fitting to rotate.

[0032] As a second embodiment of the present invention, based on the first embodiment, such as Figures 7 to 9 As shown, the base 3 has symmetrically arranged sliding grooves 301 at both ends, and a connecting hole 302 is provided below each set of sliding grooves 301. A sliding plate 303 is provided inside the base 3, which can slide horizontally within the base 3. A plug rod 3031 is fixedly installed on the sliding plate 303, and the plug rod 3031 can be inserted into the connecting hole 302. Telescopic frames 304 are provided on the upper ends of both sides of the base 3. The telescopic frames 304 slide in cooperation with the corresponding sliding grooves 301 through spring cooperation, and the upper end of the telescopic frame 304 can rotate. A top wheel 3041 is installed, and a tightening bolt 3042 is threaded onto the side end of the telescopic frame 304. A lifting plate 305 is slidably installed inside the telescopic frame 304, and the lifting plate 305 can slide up and down on the telescopic frame 304. The lifting plate 305 can contact the end of the tightening bolt 3042. A reference hole 3051 is provided on the inner side of the lower end of the lifting plate 305. A base 3 is provided, on which two sets of telescopic frames 304 can be movably installed. A sliding groove 301 is provided, through which the telescopic frame 304 can be slidably installed onto the base. The upper two sides of 3 are provided with connecting holes 302, which allow the insertion rod 3031 to pass through the connecting holes 302 and be inserted into the reference hole 3051; a sliding plate 303 is provided, and insertion rods 3031 are provided at both ends of the sliding plate 303. By moving the sliding plate 303 and observing whether the insertion rods 3031 can be inserted into the reference holes 3051 of the lifting plates 305 on both sides, it can help judge the stability of the rotation on the chuck 2021 when processing pipe parts; a telescopic frame 304 is provided, on which top wheels 3041 can be installed. A top wheel 3041 is provided, which can be used to detect the operating status of the tubular parts by contacting the top wheel 3041 with the tubular parts; a clamping bolt 3042 is provided, which can limit the lifting plate 305 on the telescopic frame 304 by pressing the clamping bolt 3042 against the lifting plate 305; a lifting plate 305 is provided, and a reference hole 3051 is provided in the lifting plate 305. By observing whether the transmission rod 4021 can be inserted into the reference hole 3051, the state of the tubular parts when rotating with the chuck 2021 can be determined.

[0033] This application involves placing a base 3 on a fixed frame 2, and setting two sets of telescopic frames 304 with top wheels 3041 on the base 3. The top wheels 3041 on both sides are placed against the lower end of the pipe fitting, and the lifting plate 305 is moved to keep the reference hole 3051 and the connecting hole 302 coaxial. The chuck 2021 is activated, and the pipe fitting is rotated. If the pipe fitting vibrates at this time, the top wheels 3041 can transmit the vibration to the telescopic frame 304, and the telescopic frame 304 can drive the lifting plate 305 to slide along the slide groove 301. At this time, by pulling the sliding plate 303 left and right, it is observed whether the insertion rod 3031 can penetrate the connecting hole 302 and be inserted into the reference hole 3051. If it can be inserted, it proves that the pipe fitting does not vibrate during rotation. If it cannot be inserted, it proves that the pipe fitting vibrates during rotation, and the staff needs to make timely adjustments before processing.

[0034] In embodiments of the present invention, such as Figure 5 As shown, a hydraulic cylinder 401 is fixedly installed on the top of the mounting frame 4, and a transmission rod 4021 is fixedly installed on the top of the lifting frame 402. The transmission rod 4021 is slidably engaged with the mounting frame 4, and the upper end of the transmission rod 4021 is fixed to the piston rod of the hydraulic cylinder 401. The mounting frame 4 is provided so that the lifting frame 402 can be installed on the mounting frame 4. The hydraulic cylinder 401 can control the lifting of the lifting frame 402 on the mounting frame 4. The lifting frame 402 can be slidably installed inside the moving frame 5. The transmission rod 4021 is provided so that the lifting frame 402 can slide up and down on the mounting frame 4 by being pushed by the hydraulic cylinder 401. A connecting groove 403 is provided so that the drive gear 404 can pass through the connecting groove 403 and be connected to the rack 501. The drive gear 404 is provided so that the moving frame 5 can move horizontally inside the lifting frame 402 by rotating the drive gear 404.

[0035] As a third embodiment of the present invention, based on embodiment one, such as Figure 6 and Figure 10As shown, a drive screw 502 controlled by a motor is rotatably mounted on the lower inner side of the movable frame 5. The drive screw 502 has slots 5021 on both sides of its outer wall, and limiters 5022 are threaded onto both ends of the drive screw 502. Grinding wheels 503 are equidistantly mounted on the outer side of the drive screw 502. Each set of grinding wheels 503 has a locking block 5031 on its inner side, which engages with the slots 5021. Each set of grinding wheels 503 has a mating groove 5032 and a mating block 5033 on its mating end face. The mating blocks 5033 on the outer end faces of two sets of mating grinding wheels 503 engage with the mating grooves 5032 on the opposite grinding wheel 503. The equidistantly mounted grinding wheels 503 are located in the center of the drive screw 502, and the limiters 5022 can abut against the side ends of the grinding wheels 503. A movable frame 5 is provided, on which the drive screw 502 is rotatably mounted. The system includes: a rod 502; a rack 501 connected to a drive gear 404, allowing the movable frame 5 to slide within the lifting frame 402; a drive screw 502, which rotates the grinding wheel 503; a slot 5021, which engages with a locking block 5031, rigidly connecting the grinding wheel 503 to the drive screw 502; a limiting member 5022, which abuts against the side of the grinding wheel 503, limiting its position on the drive screw 502; a grinding wheel 503, which, by rotating, performs grinding on the water heater pipe fittings; and a mating groove 5032 and a mating block 5033, which, by engaging the mating groove 5032 and the mating block 5033, connect and fix the two sets of mated grinding wheels 503.

[0036] This application involves rotating and installing a drive screw 502 on a movable frame 5. Based on the length of the water heater pipe fitting, a grinding wheel 503 is assembled and installed at the outer end of the drive screw 502, so that the grinding range of the grinding wheel 503 can just cover the length of the water heater pipe fitting. During the processing, the grinding of the pipe fitting can be completed in one go, without the need for the grinding device to move laterally along the pipe fitting. If there is a certain distance difference between the grinding range of the grinding wheel 503 and the pipe fitting size, the movable frame 5 can be slid slightly along the lifting frame 402 to complete the grinding.

[0037] The specific usage and function of this embodiment are as follows: In this invention, such as Figures 1 to 10As shown, the water heater pipe fitting to be processed is placed on the fixed frame 2. One end of the pipe fitting is clamped and fixed by the chuck 2021 on the left fixed seat 202 of the fixed frame 2. Then, the sliding seat 203 in the sliding groove 201 is slid so that the top head 2031 on the left side of the sliding seat 203 presses against the other end of the pipe fitting to ensure that the pipe fitting is fixed stably. Then, according to the size and length of the pipe fitting, the grinding wheel 503 is spliced ​​and installed on the outer end of the drive screw 502 on the moving frame 5, so that the grinding wheel 503 is connected to the clamp 5031. The drive screw 502 is engaged and fixed in the slot 5021. Multiple grinding wheels 503 are connected and joined with the mating block 5033 through the mating groove 5032. Then, the limiting piece 5022 is threaded onto both ends of the drive screw 502 and pressed against the grinding wheels 503, completing the installation and fixing of the grinding wheels 503. Next, the telescopic frame 304 on the base 3 is adjusted so that the top wheel 3041 on the telescopic frame 304 abuts against the lower end of the pipe fitting. The sliding lifting plate 305 makes the reference hole 3051 connect with the connecting hole 30 on the base 3. 2. Keeping the components coaxial, start the chuck 2021 to rotate the pipe, and simultaneously pull the sliding plate 303 inside the base 3. Observe whether the insertion rod 3031 on the sliding plate 303 can penetrate the connecting hole 302 and the reference hole 3051 to determine the rotational stability of the pipe. If it cannot be inserted, adjust the fixed state of the pipe until it meets the requirements. Then start the hydraulic cylinder 401, and drive the transmission rod 4021 through the hydraulic cylinder 401 to move the lifting frame 402 up and down. Adjust the height of the grinding wheel 503 to the processing position that matches the pipe. Start the drive screw 502 to rotate the grinding wheel 503 to perform grinding on the pipe. If the grinding position needs to be adjusted during the processing, the position of the moving frame 5 can be finely adjusted by the cooperation of the drive gear 404 and the rack 501. There is no need to drive the entire device to move laterally along the pipe axis. The grinding debris falls into the receiving part 103 inside the main body 1. After the processing is completed, turn off all drive components, release the chuck 2021 and the sliding base 203, and take out the processed pipe.

[0038] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0039] 2. Where there is no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0040] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-efficiency grinding processing device for water heater parts, comprising: The main body (1) is a rectangular structure with a rectangular groove inside. A fixing groove (101) is provided in the middle of the front and rear sides of the main body (1), and a side groove (102) is provided in the middle of the left and right sides of the main body (1). A receiving part (103) is installed in the rectangular groove inside the main body (1). The main body (1) is characterized in that a fixing frame (2) is installed at the upper end of the main body (1), and the lower ends of the two sides of the fixing frame (2) are fixed in the side groove (102). A base (3) is placed on the top of the fixing frame (2), and the base (3) can slide horizontally along the upper end surface of the fixing frame (2). A mounting frame (4) is provided on the rear side of the main body (1), and the lower end of the mounting frame (4) is provided in the side groove (102). The end is inserted and fixed in the fixing groove (101) on the rear side of the main body (1). The inner side of the mounting frame (4) is provided with a lifting frame (402). The inner side of the lifting frame (402) is provided with a through-type connecting groove (403). The upper end of the lifting frame (402) is rotatably mounted with a drive gear (404) controlled by a motor. The lower end of the drive gear (404) passes through the connecting groove (403). The inside of the lifting frame (402) is slidably mounted with a movable frame (5). The movable frame (5) can slide horizontally on the lifting frame (402). The upper end of the movable frame (5) is fixedly provided with a rack (501). The rack (501) is connected to the drive gear (404) in a transmission.

2. The high-efficiency grinding device for water heater parts according to claim 1, characterized in that: The inner side of the fixed frame (2) is fixedly provided with a movable groove (201), and a lead screw is rotatably installed inside the movable groove (201).

3. The high-efficiency grinding device for water heater parts according to claim 2, characterized in that: A fixed seat (202) is provided on the upper left side of the fixed frame (2). A chuck (2021) controlled by a motor is rotatably installed on the right side of the fixed seat (202). A sliding seat (203) is connected in the movable groove (201) by a screw drive. A top head (2031) is rotatably installed on the left side of the sliding seat (203).

4. The high-efficiency grinding device for water heater parts according to claim 1, characterized in that: The base (3) has symmetrically arranged sliding grooves (301) at both ends. Each set of sliding grooves (301) has a connecting hole (302) below it. The base (3) has a sliding plate (303) inside it. The sliding plate (303) can slide horizontally inside the base (3). A plug rod (3031) is fixedly installed on the sliding plate (303). The plug rod (3031) can be inserted into the connecting hole (302).

5. The high-efficiency grinding device for water heater parts according to claim 4, characterized in that: The upper ends of both sides of the base (3) are provided with telescopic frames (304). The telescopic frames (304) are slidably engaged with the corresponding sliding grooves (301) by springs. The upper end of the telescopic frame (304) is rotatably installed with a top wheel (3041), and the side end of the telescopic frame (304) is threaded with a tightening bolt (3042).

6. The high-efficiency grinding device for water heater parts according to claim 5, characterized in that: A lifting plate (305) is slidably arranged inside the telescopic frame (304). The lifting plate (305) can slide up and down on the telescopic frame (304). The lifting plate (305) can contact the end of the tightening bolt (3042). A reference hole (3051) is provided on the inner side of the lower end of the lifting plate (305).

7. The high-efficiency grinding device for water heater parts according to claim 1, characterized in that: A hydraulic cylinder (401) is fixedly installed on the top of the mounting frame (4), and a transmission rod (4021) is fixedly installed on the top of the lifting frame (402). The transmission rod (4021) slides with the mounting frame (4), and the upper end of the transmission rod (4021) is fixed to the piston rod of the hydraulic cylinder (401).

8. The high-efficiency grinding device for water heater parts according to claim 1, characterized in that: The lower inner side of the movable frame (5) is rotatably mounted with a drive screw (502) controlled by a motor. The two sides of the outer wall of the drive screw (502) are provided with slots (5021), and the two ends of the drive screw (502) are threaded with limiters (5022).

9. The high-efficiency grinding device for water heater parts according to claim 8, characterized in that: Grinding wheels (503) are equidistantly mounted on the outside of the drive screw (502). Each set of grinding wheels (503) has a locking block (5031) on its inner side. The locking block (5031) engages with the locking groove (5021). Each set of grinding wheels (503) has a mating groove (5032) and a mating block (5033) on its mating end face. The mating block (5033) on the outer end face of the two sets of grinding wheels (503) are inserted into the mating groove (5032) on the opposite grinding wheel (503). The equidistantly mounted grinding wheels (503) are located in the center of the drive screw (502). The limiting member (5022) can abut against the side end of the grinding wheel (503).

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