A polishing apparatus for liquid heater processing

Abstract

The application relates to the polishing technical field, in particular to a polishing equipment for liquid heater processing; the polishing equipment comprises a base, a horizontal electric push rod fixedly connected to the upper surface of the base, a vertical electric push rod fixedly connected to the output end of the horizontal electric push rod, a polishing seat detachably connected to the output end of the vertical electric push rod, a polishing block in an inverted L shape fixedly connected to the polishing seat, an electric machine embedded in the upper surface of the base, a vertical rod fixedly connected to the output end of the electric machine, a square groove arranged on the upper end of the vertical rod, and a square rod slidingly connected to the square groove; the vertical rod and the square rod on the vertical rod and the transmission clamping rod are arranged on the polishing equipment, so that the container pipe can be automatically clamped after being placed in the lower position, the clamping can be automatically released after being lifted and moved upwards, the workpiece loading and unloading before and after polishing can be quickly realized, the preparation time before and after polishing is saved, and the polishing efficiency and polishing convenience are improved.

Description

Technical Field

[0001] This invention relates to the field of polishing technology, specifically a polishing device for processing liquid heaters. Background Technology

[0002] A liquid heater is a device that heats liquids to a specific temperature. It plays a crucial role in various fields, providing a reliable and effective solution for liquid heating. Typically, when a liquid heater is in operation, liquid enters the container tube through the inlet pipe and flows downwards along a straight pipe inside the container tube. After reaching the bottom of the container tube, the liquid flows upwards along the gap between the outer wall of the straight pipe and the inner wall of the container tube. A heating wire inside the container tube heats the liquid, causing it to flow out through the outlet pipe after being heated.

[0003] As a key component of liquid heaters, the container tube is used to hold and heat the liquid inside, while its exterior is generally exposed to the outside. Container tubes are typically manufactured using a casting process. After casting, the inner wall of the container tube needs to be precision-machined through turning, honing, and other processes. Although the outer wall of the container tube does not require a very high degree of smoothness, a rough outer wall will make it difficult for the paint film to adhere during subsequent painting. Therefore, the outer wall of the container tube needs to be ground. Specifically, the container tube is mounted on a fixture of a grinding equipment, and the fixture is activated to clamp the inner wall of the container tube before grinding can begin. After the outer wall of the container tube is ground, it needs to be disassembled from the fixture to remove it from the container. For grinding the outer wall of container tubes in mass-produced liquid heaters, loading, unloading, and clamping the container tubes is a time-consuming and tedious task. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a grinding device for processing liquid heaters. This invention uses a vertical rod and a square rod on the rod, along with a transmission clamping rod, to enable the container tube to be self-clamped after being lowered and self-released after being lifted. This allows for quick loading and unloading of workpieces before and after grinding, saving preparation time and improving grinding efficiency and convenience.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: A grinding device for processing liquid heaters according to the present invention includes a base and a horizontal electric push rod fixedly connected to the upper surface of the base; a vertical electric push rod is fixedly connected to the output end of the horizontal electric push rod; a grinding seat is detachably connected to the output end of the vertical electric push rod; an inverted L-shaped grinding block is fixedly connected to the grinding seat; a motor is embedded in the upper surface of the base; a vertical rod is fixedly connected to the output end of the motor; a square groove is provided at the upper end of the vertical rod; a square rod is slidably connected in the square groove; a clearance groove communicating with the square groove is symmetrically provided on the outer wall of the vertical rod; a gear is rotatably connected in the clearance groove; the gear meshes with the teeth on the outer wall of the vertical rod; a clamping rod is fixedly connected to the outer wall of the gear; and a first spring connects the lower end of the square rod to the bottom of the square groove.

[0006] Preferably, the clamping rod is connected to a clamping plate at the end away from the gear; the inner wall of the clamping plate is adapted to the outer wall of the vertical rod; and the size of the clamping plate is larger than the size of the clearance groove.

[0007] Preferably, the clamping rod is hinged to the hinge block at the end away from the gear; the inner wall of the clamping plate is vertically provided with a hinge groove; the end of the hinge block away from the clamping rod is slidably connected in the hinge groove; the upper and lower surfaces of the hinge block are both connected to the wall of the hinge groove by a second spring.

[0008] Preferably, a conical sleeve is fitted onto the lower part of the outer wall of the vertical rod; the outer diameter of the conical sleeve decreases from top to bottom; a sliding groove communicating with a square groove is provided on the lower part of the outer wall of the vertical rod; a slider is slidably connected in the sliding groove; one end of the slider is fixedly connected to the outer wall of the square rod, and the other end is fixedly connected to the inner wall of the conical sleeve.

[0009] Preferably, the outer wall of the vertical rod is vertically and evenly provided with slots at the lower position; adjacent slots are arranged close to each other; the inner wall and lower surface of the conical sleeve are connected by an inverted L-shaped groove; an inverted L-shaped block is slidably connected in the radial direction of the conical sleeve in the inverted L-shaped groove; the side of the inverted L-shaped block away from the square rod is connected to the groove wall of the inverted L-shaped groove by a third spring; the ends of the inverted L-shaped blocks all extend out of the ends of the inverted L-shaped grooves; the upper end of the inverted L-shaped block is provided with a guide surface that is inclined downwards; the upper end of the inverted L-shaped block can be inserted into the slot.

[0010] Preferably, an unlocking sleeve is fitted onto the lower part of the outer wall of the vertical rod; the unlocking sleeve is located directly below the conical sleeve; and the upper surface of the unlocking sleeve is provided with an inclined annular unlocking surface.

[0011] Preferably, the slot is slidably sealed with an anti-blocking block; the bottoms of adjacent slots are connected by anti-blocking holes; the slot is filled with a liquid medium; after one anti-blocking block is squeezed back into the slot by the upper end of the inverted L-shaped block, the outer walls of the other anti-blocking blocks are adapted to the outer walls of the vertical rod.

[0012] Preferably, a central rod is rotatably connected to the center of the square rod; a top block is fixedly connected to the upper end of the central rod; a threaded rod is fixedly connected to the lower end of the central rod; a threaded hole is provided at the lower end of the square groove; the threaded rod is threadedly connected to the threaded hole; and a brush is fixedly connected to the outer edge of the clamping plate.

[0013] Preferably, the central rod is rotatably and sealed to the square rod; the square rod is slidably and sealed to the square groove; an elastic bladder is provided on the top block; and the interior of the elastic bladder is connected to the outer wall of the threaded rod through an air hole.

[0014] The beneficial effects of this invention are as follows: 1. This invention uses a vertical rod and a square rod on the rod, along with a transmission clamping rod, to set up a grinding equipment. This allows the container tube to be clamped automatically when it is lowered and to be released automatically when it is lifted. This enables quick loading and unloading of workpieces before and after grinding, saving preparation time and improving grinding efficiency and convenience.

[0015] 2. In this invention, after the container tube is polished, it will be lifted and moved upward. During the upward movement of the square rod, the gear will rotate. The end of the clamping rod away from the gear will drive the hinge block and pull the clamping plate close to the outer wall of the vertical rod, thereby protecting and shielding the gear in the clearance groove, preventing impurities from entering the clearance groove and causing the gear and teeth to mesh and jam, thus improving the stability of the polishing equipment operation.

[0016] 3. The present invention, by fitting a conical sleeve connected to a square rod at the lower position on the outer wall of the vertical rod, enables the grinding equipment to clamp and grind some sleeve-shaped workpieces and long container tubes, thereby increasing the grinding range of the grinding equipment and improving its functionality.

[0017] 4. This invention improves the stability of the workpiece during grinding by setting a one-way locking mechanism on the inner wall of the conical sleeve and the outer wall of the vertical rod, so that the workpiece to be ground can be clamped and locked automatically after being placed. In addition, the exposed slot is covered by an anti-blocking block to prevent debris from entering the slot and causing blockage. Finally, by setting an unlocking sleeve, the workpiece can be unloaded after grinding without waiting for the vertical rod to completely stop rotating, thus improving the efficiency and convenience of unloading the workpiece after grinding. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of the polishing state of the present invention; Figure 2 This is a perspective view of the present invention; Figure 3 This is a schematic diagram of gear meshing with teeth in this invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the present invention; Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 yes Figure 5 Enlarged view of point C in the middle.

[0020] In the diagram: Base 1, Horizontal electric push rod 11, Vertical electric push rod 12, Grinding seat 13, Grinding block 14, Motor 15, Vertical rod 2, Square groove 21, Clearance groove 22, Slide groove 23, Slider 24, Slot 25, Anti-blocking block 26, Anti-blocking hole 27, Threaded hole 28, Square rod 3, First spring 31, Center rod 32, Top block 33, Threaded rod 34, Elastic bladder 35, Air hole 36, Gear 4, Tooth 41, Clamping rod 42, Clamping plate 5, Hinge groove 51, Hinge block 52, Second spring 53, Brush 54, Conical sleeve 6, Inverted L-shaped groove 61, Inverted L-shaped block 62, Third spring 63, Guide surface 64, Unlocking sleeve 7, Unlocking surface 71. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 7 As shown, the present invention includes the following embodiments: Example 1: A grinding device for processing liquid heaters includes a base 1 and a horizontal electric push rod 11 fixedly connected to the upper surface of the base 1; a vertical electric push rod 12 is fixedly connected to the output end of the horizontal electric push rod 11; a grinding seat 13 is detachably connected to the output end of the vertical electric push rod 12; an inverted L-shaped grinding block 14 is fixedly connected to the grinding seat 13; a motor 15 is embedded in the upper surface of the base 1; a vertical rod 2 is fixedly connected to the output end of the motor 15; a square groove 21 is provided at the upper end of the vertical rod 2; a square rod 3 is slidably connected in the square groove 21; a clearance groove 22 communicating with the square groove 21 is symmetrically provided on the outer wall of the vertical rod 2; a gear 4 is rotatably connected in the clearance groove 22; the gear 4 meshes with the teeth 41 on the outer wall of the vertical rod 2; a clamping rod 42 is fixedly connected to the outer wall of the gear 4; the lower end of the square rod 3 is connected to the bottom of the square groove 21 by a first spring 31.

[0023] In the initial state, the horizontal electric push rod 11 shortens, causing the vertical electric push rod 12, the grinding seat 13, and the grinding block 14 to move away from the vertical rod 2. As the container tube in the liquid heater is inverted and fitted onto the upper end of the vertical rod 2, the container tube moves downward under its own weight. The inner bottom wall of the container tube contacts the upper end of the square rod 3. The upper end of the square rod 3 is squeezed downward by the inner bottom wall of the container tube. During the downward movement of the square rod 3, it slides along the square groove 21 and squeezes the first spring 31. The first spring 31 completes the energy storage process under pressure. During the downward movement of the square rod 3, it will drive the teeth 41 on the outer wall to move downward synchronously. The teeth 41 on the outer wall of the square rod 3 mesh with the gear 4, so the gear 4 will rotate during the downward movement of the square rod 3. The rotating gear 4 will drive the clamping rod 42 to flip outward. The end of the clamping rod 42 away from the gear 4 will flip out from the clearance groove 22 and abut against the inner wall of the container tube. The number of clearance grooves 22 is greater than or equal to two. Multiple clearance grooves 22 are evenly distributed on the outer wall of the vertical rod 2. The clamping rods 42 in the multiple clearance grooves 22 expand outward and abut against the inner wall of the container tube, so that the container tube is clamped in the center. After the clamping rods 42 are pressed against the inner wall of the container tube, the square rod 3 will also stop moving down in the square groove 21. Then, the horizontal electric push rod 11 is controlled to extend and drive the vertical electric push rod 12, the grinding seat 13 and the grinding block 14 to approach and stick to the outer wall of the container tube. The motor 15 starts to drive the vertical rod 2 to rotate. During the rotation of the vertical rod 2, the square rod 3 and the clamping rods 42 will rotate. During the rotation of the clamping rods 42, the container tube clamped on the inner wall will rotate. During the rotation of the container tube, the outer wall of the container tube will rub against the grinding block 14 to achieve grinding of the outer wall of the container tube. The impurities ground off the outer wall of the container tube will fall off. The outer wall of the container tube will be smoother after grinding to meet the subsequent smoothness requirements.

[0024] After grinding is completed, the grinding block 14 is disengaged from the container tube, and then the motor 15 stops rotating, directly lifting the container tube upwards. During the upward movement of the container tube, the upper end of the square rod 3 is unobstructed, and the first spring 31 pushes the square rod 3 upwards in the square groove 21. During the upward movement of the square rod 3, the teeth 41 on the outer wall will mesh with the gear 4, causing the gear 4 in the clearance groove 22 to rotate in the opposite direction. The clamping rod 42 will flip and retract into the clearance groove 22 as the corresponding gear 4 rotates. In this way, the ground container tube can be directly moved upwards and unloaded. This invention sets a vertical rod 2 and a square rod 3 on the vertical rod 2 and a transmission clamping rod 42 on the grinding equipment, so that the container tube can be clamped by itself after being lowered and can be released by itself after being lifted upwards. This allows for quick loading and unloading of workpieces before and after grinding, saving preparation time before and after grinding and improving grinding efficiency and convenience.

[0025] Example 2: The clamping rod 42 is connected to a clamping plate 5 at the end away from the gear 4; the inner wall of the clamping plate 5 is adapted to the outer wall of the vertical rod 2; the specifications of the clamping plate 5 are larger than the specifications of the clearance groove 22.

[0026] The clamping rod 42 is hinged to the hinge block 52 at the end away from the gear 4; the inner wall of the clamping plate 5 is vertically provided with a hinge groove 51; the end of the hinge block 52 away from the clamping rod 42 is slidably connected in the hinge groove 51; the upper and lower surfaces of the hinge block 52 are both connected to the groove wall of the hinge groove 51 by a second spring 53.

[0027] After the inverted container tube is placed along the upper end of the vertical rod 2, the bottom wall of the container tube will press the square rod 3 downward. The teeth 41 on the outer wall of the square rod 3 will mesh with the gear 4, causing the gear 4 to rotate. The rotation of the gear 4 will cause the clamping rod 42 to flip out of the clearance groove 22. The end of the clamping rod 42 away from the corresponding gear 4 will cause the hinge block 52 to move away from the square rod 3. The hinge block 52 will cause the arc-shaped clamping plate 5 to move closer to the inner wall of the container tube. The side of the clamping plate 5 away from the square rod 3 is provided with elastic anti-slip protrusions (not labeled in the figure) to play an anti-slip role.

[0028] When the clamping plate 5 is in contact with the inner wall of the container tube, the friction between the clamping plate 5 and the inner wall of the container tube is increased, thereby improving the clamping effect of the clamping plate 5 on the inner wall of the container tube. After the clamping plate 5 contacts the inner wall of the container tube, the container tube will continue to move downward under its own gravity. The clamping plate 5 will slide with the hinge block 52. The hinge block 52 will slide in the hinge groove 51 and overcome the elastic force of the second spring 53. As the container tube continues to move downward, the square rod 3 will be pressed and moved further downward. As the square rod 3 continues to move downward, it will drive the gear 4 to rotate again. The rotation of the gear 4 will cause the clamping rod 42 to flip. The end of the clamping rod 42 away from the gear 4 will drive the clamping plate 5 to further press against the inner wall of the container tube, thereby improving the clamping effect of the clamping plate 5 on the inner wall of the container tube. This prevents the contact of the clamping plate 5 from affecting the further downward movement of the container tube. The clamping force of the clamping rod 42 on the inner wall of the container tube through the clamping plate 5 is increased, thus making the container tube more stable during the grinding process.

[0029] After grinding, the container tube will be lifted and moved upward. During the upward movement of the container tube, the square rod 3 will move upward under the action of the first spring 31. During the upward movement of the square rod 3, the gear 4 will rotate. The clamping rod 42 will retract to avoid the relief groove 22 under the rotation of the gear 4. The end of the clamping rod 42 away from the gear 4 will drive the hinge block 52 and pull the clamping plate 5 close to the outer wall of the vertical rod 2. The arc-shaped clamping plate 5 is adapted to the outer wall of the vertical rod 2, and the size of the clamping plate 5 is larger than the relief groove 22. Therefore, after the clamping plate 5 is folded up, it can block the corresponding relief groove 22, thereby protecting and blocking the gear 4 in the relief groove 22, preventing impurities from entering the relief groove 22 and causing the gear 4 and teeth 41 to mesh and jam, thus improving the stability of the grinding equipment operation.

[0030] Example 3: A conical sleeve 6 is fitted onto the lower part of the outer wall of the vertical rod 2; the outer diameter of the conical sleeve 6 decreases from top to bottom; a sliding groove 23 communicating with the square groove 21 is provided on the lower part of the outer wall of the vertical rod 2; a slider 24 is slidably connected in the sliding groove 23; one end of the slider 24 is fixedly connected to the outer wall of the square rod 3, and the other end is fixedly connected to the inner wall of the conical sleeve 6.

[0031] When grinding a sleeve-shaped workpiece, the workpiece is directly placed on the outer wall of the vertical rod 2. The upper end of the workpiece will pass over the upper end of the square rod 3 and continue to move downwards. The lower end of the workpiece will eventually land on the outer wall of the conical sleeve 6, thus pushing the conical sleeve 6 downwards. During the downward movement of the conical sleeve 6, the slider 24 will slide within the groove 23. During the downward movement of the slider 24, the square rod 3 will also move downwards. During the downward movement of the square rod 3, it will slide within the square groove 21. During the downward movement of the square rod 3, the teeth 41 on the outer wall will move downwards and mesh with the gear 4. 4. During the rotation, the clamping rod 42 will flip and press against the outer wall of the sleeve-shaped workpiece, thereby clamping the inner wall of the sleeve-shaped workpiece. After the grinding block 14 contacts the outer wall of the sleeve-shaped workpiece, the motor 15 will rotate and drive the sleeve-shaped workpiece to rotate, thereby grinding the outer wall of the sleeve-shaped workpiece. During the grinding process, the debris will slide down along the outer wall of the conical sleeve 6. After the grinding is completed, the sleeve-shaped workpiece will be lifted and moved upward. The first spring 31 will push the square rod 3 upward. The square rod 3 will drive the slider 24 and the conical sleeve 6 upward. The upward movement of the square rod 3 will also cause the clamping rod 42 to be folded into the clearance groove 22 for clearance.

[0032] In this embodiment, a conical sleeve 6 connected to a square rod 3 is fitted onto the lower part of the outer wall of the vertical rod 2, thereby enabling the grinding equipment to clamp and grind some sleeve-shaped workpieces and long container tubes, thus increasing the grinding range of the grinding equipment and improving its functionality.

[0033] Example 4: The outer wall of the vertical rod 2 is vertically and evenly provided with slots 25 at the lower position; adjacent slots 25 are arranged close to each other; the inner wall and lower surface of the conical sleeve 6 are connected with an inverted L-shaped groove 61; an inverted L-shaped block 62 is slidably connected in the radial direction of the conical sleeve 6 within the inverted L-shaped groove 61; the side of the inverted L-shaped block 62 away from the square rod 3 is connected to the groove wall of the inverted L-shaped groove 61 by a third spring 63; the ends of the inverted L-shaped blocks 62 all extend out of the ends of the inverted L-shaped groove 61; the upper end of the inverted L-shaped block 62 is provided with a guide surface 64 inclined downwards; the upper end of the inverted L-shaped block 62 can be inserted into the slot 25.

[0034] The unlocking sleeve 7 is fitted on the lower part of the outer wall of the vertical rod 2; the unlocking sleeve 7 is located directly below the conical sleeve 6; the upper surface of the unlocking sleeve 7 is provided with an inclined annular unlocking surface 71.

[0035] The slot 25 is slidably sealed with an anti-blocking block 26; the bottoms of adjacent slots 25 are connected by an anti-blocking hole 27; the slot 25 is filled with a liquid medium; after one anti-blocking block 26 is squeezed back into the slot 25 by the upper end of the inverted L-shaped block 62, the outer wall of the other anti-blocking blocks 26 is adapted to the outer wall of the vertical rod 2.

[0036] After the container tube or sleeve-shaped workpiece is placed on the outer wall of the vertical rod 2, the square rod 3 and the conical sleeve 6 are pressed down. During the downward movement of the conical sleeve 6, the inverted L-shaped groove 61 and the inverted L-shaped block 62 in the inverted L-shaped groove 61 will move down. The guide surface 64 at the upper end of the inverted L-shaped block 62 will be pressed out of the corresponding slot 25. The pressure on the upper end of the inverted L-shaped block 62 will overcome the third spring 63 and retract into the inverted L-shaped groove 61 until the upper end of the inverted L-shaped groove 61 is aligned with the position of the next slot 25. Then, the third spring 63 will push the upper end of the inverted L-shaped block 62 to be inserted into the new slot 25, thereby locking the downward movement of the square rod 3. After the square rod 3 is locked down, the clamping rod 42 will be locked and pressed against the inner wall of the container tube or sleeve-shaped workpiece. This makes the container tube or sleeve-shaped workpiece more stable during the grinding process and improves the stability of the grinding.

[0037] During the process of inserting the upper end of the inverted L-shaped block 62 into the slot 25, the anti-blocking block 26 in the slot 25 into which the inverted L-shaped block 62 is inserted will be pressed closer to the bottom of the slot 25. The liquid medium in the slot 25 into which the inverted L-shaped block 62 is inserted will be pressed and flow along the anti-blocking hole 27 to other slots 25, causing the anti-blocking blocks 26 in other slots 25 to move outward and adapt to the outer wall of the vertical rod 2. This makes it difficult for debris and other impurities to enter the smaller slots 25 and cause blockage, thus achieving the purpose of preventing blockage of the slots 25. After the square rod 3 moves down and locks, the container tube is ground under the locked clamp. During the grinding process, since the unlocking sleeve 7 is fitted on the outer wall of the vertical rod 2, the unlocking sleeve 7 will not rotate with the rotation of the vertical rod 2. After the grinding is completed, the motor 15 stops working, without waiting for the vertical rod. 2. When the device comes to a complete stop, lift the unlocking sleeve 7 upwards. During the upward movement of the unlocking sleeve 7, it will contact the lower end of the inverted L-shaped block 62 through the unlocking surface 71. The lower end of the inverted L-shaped block 62 will be squeezed away from the square rod 3 by the unlocking surface 71. During the process of moving away from the square rod 3, the inverted L-shaped block 62 will slide along the inverted L-shaped groove 61 and overcome the movement of the third spring 63. One end of the inverted L-shaped block 62 will move out of the corresponding slot 25, realizing the unlocking of the conical sleeve 6 and the vertical rod 2. The square rod 3 will also be unlocked. Then, the container tube or sleeve-shaped workpiece can be lifted and moved upwards directly. During the upward movement of the container tube or sleeve-shaped workpiece, the first spring 31 will push the square rod 3 and the conical sleeve 6 upwards. The clamping rod 42 will be folded into the clearance groove 22. The square rod 3 and the conical sleeve 6 will move to the upper limit position and then stop.

[0038] This embodiment uses a one-way locking mechanism on the inner wall of the conical sleeve 6 and the outer wall of the vertical rod 2 to automatically clamp and lock the workpiece after it is placed, thereby improving the stability of the workpiece during the grinding process. In addition, the anti-blocking block 26 covers the exposed slot 25 to prevent debris from entering the slot 25 and causing blockage. Finally, by setting the unlocking sleeve 7, the workpiece can be unloaded after grinding without waiting for the vertical rod 2 to completely stop rotating, thus improving the efficiency and convenience of unloading the workpiece after grinding.

[0039] Example 5: A central rod 32 is rotatably connected to the center of the square rod 3; a top block 33 is fixedly connected to the upper end of the central rod 32; a threaded rod 34 is fixedly connected to the lower end of the central rod 32; a threaded hole 28 is provided at the lower end of the square groove 21; the threaded rod 34 is threadedly connected to the threaded hole 28; a brush 54 is fixedly connected to the outer edge of the clamping plate 5.

[0040] During the process of the inverted container tube being fitted onto the vertical rod 2, the inner bottom wall of the container tube will contact the top block 33. The top block 33 will move downward under the gravity of the container tube. During the downward movement of the top block 33, the square rod 3 will move downward. The square rod 3 will slide along the square groove 21. During the downward movement of the square rod 3, the central rod 32 will move downward. During the downward movement of the central rod 32, the threaded rod 34 will move downward. During the downward movement of the threaded rod 34, it will move along the threaded hole 28. The threaded rod 34 and the threaded hole 28 are threadedly driven, so the threaded rod 34 will rotate during the downward movement. During the rotation of the threaded rod 34, the central rod 32 and the top block 33 will rotate. During the rotation of the top block 33, the unclamped container tube will rotate. During the rotation of the container tube, it will scrape against the brush 54 on the outer edge of the clamping plate 5, thereby cleaning the impurities on the inner wall of the container tube and avoiding the impurities remaining to affect the subsequent clamping of the clamping plate 5. This prepares the clamping plate 5 to press against the inner wall of the container tube, thereby further improving the clamping stability of the container tube. Example 6: The central rod 32 is rotatably and sealed to the square rod 3; the square rod 3 is slidably and sealed to the square groove 21; an elastic bladder 35 is provided on the top block 33; the interior of the elastic bladder 35 is connected to the outer wall of the threaded rod 34 through an air hole 36.

[0041] Initially, the square rod 3 is at its upper limit position within the square groove 21. At this time, the square groove 21 is filled with gas, and the space is at its maximum. The elastic bladder 35 is in a deflated state, which facilitates the loading of the container tube. After the inverted container tube is placed on the outer wall of the vertical rod 2, the square rod 3 moves downward under the gravity of the container tube. During the downward movement of the square rod 3, it will compress the gas in the square groove 21. After the gas pressure in the square groove 21 increases, it enters the elastic bladder 35 through the air hole 36. After the elastic bladder 35 expands, it will block the interface hole at the bottom of the container tube, thus preventing debris from entering the inside of the container tube through the interface hole during the grinding process, thereby protecting the inside of the container tube. After the container tube is lifted after grinding, the square rod 3 moves upward, and the gas in the elastic bladder 35 will enter the square groove 21 through the air hole 36. The elastic bladder 35 changes from an expanded state to a deflated state, which facilitates the removal of the container tube. The square groove 21 can also be filled with liquid medium.

[0042] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for processing liquid heaters, comprising a base and a grinding seat detachable and movable on the base; an inverted L-shaped grinding block is fixedly connected to the grinding seat; characterized in that: A motor is embedded in the upper surface of the base; a vertical rod is fixedly connected to the output end of the motor; a square groove is provided at the upper end of the vertical rod; a square rod is slidably connected in the square groove; symmetrical clearance grooves communicating with the square groove are provided on the outer wall of the vertical rod; a gear is rotatably connected in the clearance groove; the gear meshes with the teeth on the outer wall of the vertical rod; a clamping rod is fixedly connected to the outer wall of the gear; the lower end of the square rod is connected to the bottom of the square groove by a first spring. The clamping rod is connected to a clamping plate at the end away from the gear; the inner wall of the clamping plate is adapted to the outer wall of the vertical rod; the size of the clamping plate is larger than the size of the clearance groove; the clamping rod is hinged to a hinge block at the end away from the gear; the inner wall of the clamping plate and the hinge block are elastically slidably connected. A conical sleeve is fitted onto the lower part of the outer wall of the vertical rod; the outer diameter of the conical sleeve decreases from top to bottom; a sliding groove communicating with a square groove is provided on the lower part of the outer wall of the vertical rod; a slider is slidably connected in the sliding groove; one end of the slider is fixedly connected to the outer wall of the square rod, and the other end is fixedly connected to the inner wall of the conical sleeve.

2. The grinding equipment for processing liquid heaters according to claim 1, characterized in that: The outer wall of the vertical rod is vertically and evenly provided with slots at the lower position; adjacent slots are arranged close to each other; the inner wall and lower surface of the conical sleeve are connected by an inverted L-shaped groove; an inverted L-shaped block is elastically slidably connected in the radial direction of the conical sleeve in the inverted L-shaped groove; the upper end of the inverted L-shaped block is provided with a guide surface that is inclined downwards; the upper end of the inverted L-shaped block can be inserted into the slot.

3. A grinding device for processing liquid heaters according to claim 2, characterized in that: An unlocking sleeve is fitted onto the outer wall of the vertical rod below the conical sleeve; the upper surface of the unlocking sleeve is provided with an inclined annular unlocking surface.

4. A grinding device for processing liquid heaters according to claim 3, characterized in that: The card slot is equipped with a sliding seal to prevent blockage; the bottoms of adjacent card slots are connected by an anti-blockage hole.

5. A grinding device for processing liquid heaters according to claim 1, characterized in that: A central rod is rotatably connected to the center of the square rod; a top block is fixedly connected to the upper end of the central rod; a threaded rod is fixedly connected to the lower end of the central rod; a threaded hole is provided at the lower end of the square groove; the threaded rod is threadedly connected to the threaded hole; a brush is fixedly connected to the outer edge of the clamping plate.

6. A grinding device for processing liquid heaters according to claim 5, characterized in that: The central rod is rotatably and sealed to the square rod; the square rod is slidably and sealed to the square groove; an elastic bladder is provided on the top block; the interior of the elastic bladder is connected to the outer wall of the threaded rod through an air hole.

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