A magnetostrictive level gauge shell processing and polishing device with automatic clamping force adjustment

Abstract

The present invention discloses a magnetostrictive level gauge shell processing and polishing device that automatically adjusts the clamping force. The device is used for processing a long rod shell. The polishing device includes a clamping and pushing assembly and a polishing roller. The clamping and pushing assembly rotates to clamp the rod shell and applies axial friction to the rod shell at the contact position. The polishing roller is arranged beside the rod shell and contacts the surface of the rod shell. The rod shell is radially clamped by the clamping and pushing assembly, and only two degrees of freedom remain: axial linear motion and rotation around a straight line. The long rod shell is driven by the clamping and pushing assembly to rotate and continuously advance. The polishing roller only needs to continuously contact the side of the rod shell for sliding friction to perform the polishing process. The feeding of the rod shell can be completed by rotating the pushing assembly, and there is no need to repeatedly disassemble and assemble the rod to achieve axial feeding.

Description

Technical Field

[0001] The invention relates to the technical field of liquid level gauge shell polishing, in particular to a magnetostrictive liquid level gauge shell processing and polishing device capable of automatically adjusting clamping force. Background Art

[0002] The magnetostrictive level gauge is designed to generate signals by coupling the magnetism of the float with the circuit inside the rod. Among the components of the level gauge, the outer shell of the rod requires a high degree of finish and a small degree of roughness, because the outer shell of the rod is in contact with the liquid and requires the float to slide on it almost without friction. If there are burrs or large roughness on the surface, it is easy to rust in such locations. Even if stainless steel is used, it cannot withstand long-term use. Therefore, the outer shell of the level gauge rod needs to undergo a grinding process during processing.

[0003] During manufacturing, the length of the level gauge rod can be modified according to the use requirements. In order to unify the size during processing, many rods with the maximum range are generally processed, and then the length is cut according to the order. The long bar shell needs to be rotated and axially fed during grinding. In the existing technology, the rod is generally rotated and installed, and then a horizontally moving grinding knife is used to perform the grinding operation, which is similar to the turning process. In such a grinding device, the movement structure of the grinding knife is relatively complicated. Moreover, a very long rod shell is set up and supported and the grinding knife is moved within the entire length range. The entire device occupies a long area and the operating efficiency is not high. Moreover, if there is a special customized requirement for an extended range of rods, multiple clamping and debugging grinding are required, which is very inconvenient. Summary of the Invention

[0004] The object of the present invention is to provide a magnetostrictive liquid level gauge housing processing and polishing device capable of automatically adjusting the clamping force, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A magnetostrictive level gauge shell processing and polishing device with automatically adjustable clamping force is used for processing long rod shells. The polishing device includes a clamping and pushing assembly, which rotates to clamp the rod shell and applies axial friction to the rod shell at the contact position. The polishing roller is positioned beside the rod shell and contacts the rod shell surface. The rod shell is radially clamped by the clamping and pushing assembly, leaving only two degrees of freedom: axial linear motion and rotation about a straight line. The long rod shell is driven by the clamping and pushing assembly to rotate while continuously advancing. The polishing roller only needs to continuously contact the rod shell to perform sliding friction, thereby performing the polishing process. The rod shell is fed simply by rotating the pushing assembly, eliminating the need for repeated disassembly and assembly of the rod to achieve axial feeding.

[0007] Furthermore, the axis of the grinding roller is parallel to the axis of the rod shell. The contact between the grinding roller and the rod shell with parallel axes is line contact, which can have a larger contact grinding range during the rotation feeding process of the rod shell.

[0008] Furthermore, the clamping and pushing assembly includes a rolling column, a sleeve, a force adjusting rod, and a base shell. The base shell is fixedly mounted on the radial outer side of the rod shell. The force adjusting rod is arranged on the base shell toward the rod shell. The force adjusting rod is divided into two at one end close to the rod shell and a sleeve is arranged on each end. The two sleeves are in the same straight line. The rolling column is rotatably mounted in the sleeve. The rolling column contacts the surface of the rod shell. The axis of the rolling column is staggered with the axis of the rod shell.

[0009] The force regulating rod applies a force to the rolling column to squeeze the rolling column toward the rod shell. The force regulating rod is rotatable, and the rotation axis of the force regulating rod intersects with the axis of the rod shell and the axis of the rolling column at the same time.

[0010] The grinding assembly also includes a universal drive connected to the end of the rolling column.

[0011] The force regulating rod presses the rolling column to the rod shell to apply contact force. After the rolling column and the rod shell are in rolling contact, due to the misalignment of the axes, the rolling column will drive the rod shell to rotate when in rolling contact with the rod shell, and will also be subjected to axial friction to feed axially. The force regulating rod can also rotate. In order to adjust the misalignment degree between the axes of the rolling column and the rod shell, the rotation axis of the force regulating rod passes vertically through the intersection of the projection of the rod shell and the axis of the rolling column. When the force regulating rod rotates, the rolling column rotates. If the angle between the axes of the rod shell and the rolling column increases, when the rotational motion of the rolling column is transmitted to the rod shell, the rod shell A greater axial speed is obtained while the rotational speed is reduced. If the angle between the rolling column and the axis of the rod shell is reduced, the axial speed of the rod shell is reduced and the circumferential rotational speed is increased. The ratio of the rotational speed and the axial feed speed of the rod shell is adjusted by adjusting the angular position of the rolling column through the force adjusting rod. This can adapt to different grinding conditions. For example, when the vibration intensifies during the grinding process, it means that there are more burrs and roughness at the grinding position that need to be polished. At this time, the angle between the rolling column and the rod shell should be reduced to slow down the axial feed and increase the rotational speed. After adjusting the angle of the rolling column, its rotation drive must be adaptively adjusted, so a universal drive is used.

[0012] Furthermore, the grinding device comprises at least three groups of clamping and pushing components located at the same axial position of the rod shell, and the three groups of clamping and pushing components are evenly distributed on the outer side of the rod shell.

[0013] The three groups of clamping and pushing components clamp the rod shell at an axial position together, and provide rolling friction for it to rotate and feed it, ensuring the stable feeding of the rod shell. A single clamping and pushing component plus a floating passive rotating wheel may have insufficient rotational power.

[0014] Furthermore, the rolling column includes a clamping section and an end shaft, the end shaft extends from both ends of the clamping section, the diameter of the clamping section is larger than the end shaft, the end shaft is installed in the sleeve and one end is connected to the universal drive transmission, the two ends of the clamping section are rounded, and the clamping section is in contact with the rod shell.

[0015] When the clamping section and the rod shell are in rolling contact, motion is transmitted to cause the rod shell to rotate and axially feed.

[0016] Furthermore, the force adjusting rod includes a connecting rod, a piston disc, and a shifting platform. The piston disc is rotatably installed in the base shell. A connecting rod is set on one end face of the piston disc facing the rolling column. The connecting rod branches out at one end facing the rolling column and is rotatably connected to the rolling column through a shaft sleeve. A shifting platform is set on the end face of the piston disc facing away from the rolling column, and hydraulic oil is filled in the base shell.

[0017] The unequal pressure differences at both ends of the piston disc can apply a contact force to the rolling column to squeeze it toward the rod shell. When the transposition platform is subjected to different pressure differences on both sides of the rotation direction with the connecting rod as the axis, it will be forced to rotate, causing the force regulating rod to adjust its angle, thereby changing the angle between the rolling column and the rod shell. Specifically, how to construct the pressure difference can be achieved by constructing several conditionally independent chambers in the base shell and injecting oil with different pressures into the chambers to achieve pressure difference control.

[0018] Furthermore, a partition is provided on the inner wall of the base shell away from the rolling column. The partition extends radially from the inner wall of the base shell and is bent circumferentially at the end. The partition is rotated in the bending opening and embedded in the transposition table. The interior of the base shell is divided into three areas: a pressure chamber, a constant pressure chamber, and a back pressure chamber. The constant pressure chamber is located on the side of the piston disc close to the rolling column, the pressure chamber and the back pressure chamber are located on the side of the piston disc away from the rolling column, the pressure chamber is located outside the bending opening of the partition, and the back pressure chamber is located inside the bending opening of the partition.

[0019] The oil pressure injected into the pressure chamber is higher than that of the constant pressure chamber and the back pressure chamber. A flow resistance structure is set on the oil pipes connected to the pressure chamber, the constant pressure chamber and the back pressure chamber. The pressure chamber and the back pressure chamber are connected when the vibration intensifies during the grinding process.

[0020] The pressure in the pressure chamber is higher than that in the constant pressure chamber. The piston disc is subjected to a pressure difference toward the rolling column, thereby exerting a contact force between the rolling column and the rod shell. When the vibration occurs during the grinding process, the pressure chamber and the back-pressure chamber are connected, and the pressure difference between the two chambers tends to be balanced. Compared with the initial state, the two sides of the circumference of the transposition table are subjected to unequal pressure differences, so position adjustment occurs and the force regulating rod is adjusted in angle.

[0021] Furthermore, a flow hole is provided on the switching platform, the flow hole connects the pressure chamber and the back pressure chamber, the flow hole has an expansion and contraction section, a vibration ball is provided in the expansion and contraction section, and a positioning spring is provided between the wall surface inside the bending mouth of the partition and the end face of the switching platform embedded in the bending mouth.

[0022] The two sides of the flow hole are respectively connected to the high and low pressure pressure chambers and the back-pressure chamber. In a stable state, when the force regulating rod does not need to adjust the angle, the vibrating ball hits the end close to the back-pressure chamber in the flow hole, and the two chambers are not connected. When vibration occurs, the vibrating ball no longer clings to the expansion and contraction section slope in the flow hole, but swings in the flow hole. The flow hole has a slight overflow, allowing part of the oil in the pressure chamber to enter the back-pressure chamber to increase the oil pressure in the back-pressure chamber. These chambers have flow resistance structures on the oil pipes connected to the outside. Therefore, after the chambers leak oil pressure from each other, the oil pressure in the pressure chamber will not be immediately supplemented by the external oil pressure, and the oil pressure in the back-pressure chamber will not be immediately discharged to the outside and cannot increase. As long as the vibration continues, the pressure chamber and the back-pressure chamber will continue to be in a slight connected state, and the pressure difference will be less than the state when there is no vibration. Therefore, vibration will cause the angle adjustment of the force regulating rod, and vibration can be used to determine the oil to be polished. The roughness state of the rod shell surface. If the surface entering the grinding station is relatively rough, the overall vibration of the device will be intensified. The angle adjustment of the force regulating rod allows the rolling column to transmit more rotational speed to the rod shell and reduce the axial feed speed of the rod shell, so that the rough area on the surface of the rod shell can stay longer at the grinding position, thereby increasing the grinding effect. In addition, due to the intensified vibration, if the rolling column is still clamped with the original clamping force, it may cause the thin wall of the rod shell to deform, and it is necessary to slightly loosen the clamping force. The clamping force is the force applied by the force regulating rod to the rolling column on the connecting rod axis, which is determined by the pressure difference on both sides of the piston disc. During vibration, the oil in the pressure chamber leaks to the back pressure chamber, the pressure in the pressure chamber decreases, and the oil pressure in the constant pressure chamber remains unchanged. Therefore, during vibration, the force applied to the rolling column by the force regulating rod is reduced, thereby slightly reducing the clamping effect on the rod shell and preventing deformation of the clamping position during vibration.

[0023] Furthermore, there are at least six groups of clamping and pushing assemblies, and at least three groups of clamping and pushing assemblies are respectively arranged at the two axial positions of the rod body shell. At the same time, only the clamping and pushing assemblies at one axial position of the rod body shell actively rotate, and the clamping and pushing assemblies at the two axial positions of the rod body shell are opposite to the axial feed directions applied to the rod body shell.

[0024] The six groups of clamping and pushing components can transport the rod shell in two directions, and can repeatedly polish a certain section of the rod shell.

[0025] Compared with the prior art, the present invention has the following beneficial effects: the present invention uses a rotating roller to simultaneously provide rotational support, rotational drive and axial feed for the rod shell, eliminating the need to repeatedly replace the rod shell or the grinding tool position to achieve grinding operations at different axial positions of the rod shell.

[0026] The radial clamping of the rolling column on the rod shell can spontaneously loosen the slight clamping force to prevent the clamping position from deforming when the grinding position is relatively rough. In addition, the angle between the rolling column and the axis of the rod shell can be adjusted, and the angle can be adaptively reduced when vibration occurs, thereby increasing the rotation speed of the rod shell and reducing the axial feed speed, so that the rough position can stay at the grinding roller for more time for grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the overall use of the present invention;

[0029] Figure 2 This is a top view of the clamping and pushing assembly of the present invention in contact with the rod shell;

[0030] Figure 3 yes Figure 2 View AA in;

[0031] Figure 4 yes Figure 3 View BB in;

[0032] Figure 5 yes Figure 4 View C in

[0033] Figure 6 It is an exploded schematic diagram of the clamping and pushing assembly of the present invention;

[0034] In the figure: 1-clamping and pushing assembly, 11-rolling column, 111-clamping section, 112-end shaft, 12-sleeve, 13-force adjusting rod, 131-connecting rod, 132-piston disk, 133-transposition platform, 134-flow hole, 14-base shell, 141-partition, 142-pressure chamber, 143-constant pressure chamber, 144-back pressure chamber, 15-vibrating ball, 16-positioning spring, 2-grinding roller, 3-universal drive, 9-rod shell. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1-6 , the present invention provides a technical solution:

[0037] A magnetostrictive level gauge housing processing and grinding device with automatic clamping force adjustment is used to process a long rod shell 9. The grinding device includes a clamping and pushing component 1 and a grinding roller 2. The clamping and pushing component 1 rotates to clamp the rod shell 9 and applies axial friction force to the rod shell 9 at the contact position. The grinding roller 2 is set beside the rod shell 9 and contacts the surface of the rod shell 9. Figure 1 As shown, the rod shell 9 is radially clamped by the clamping and pushing assembly 1, and it only has two degrees of freedom: axial linear motion and rotation around a straight line. The long rod shell 9 is driven by the clamping and pushing assembly 1 to rotate and continuously move forward. The grinding roller 2 only needs to keep in contact with the side of the rod shell 9 for sliding friction to perform the grinding process. The feeding of the rod shell can be completed by rotating the pushing assembly 1, and there is no need to disassemble and assemble the rod again and again to achieve axial feeding.

[0038] The axis of the grinding roller 2 is parallel to the axis of the rod shell 9. Figure 1 As shown, the contact between the axis-parallel grinding roller 2 and the rod shell 9 is line contact, which can provide a larger contact grinding range during the rotation feeding process of the rod shell 9.

[0039] The clamping and pushing assembly includes a rolling column 11, a sleeve 12, a force adjustment rod 13, and a base shell 14. The base shell 14 is fixedly mounted on the radially outer side of the rod shell 9. The force adjustment rod 13 is arranged on the base shell 14 toward the rod shell 9. The force adjustment rod 13 is divided into two at one end close to the rod shell 9 and a sleeve 12 is arranged on each end. The two sleeves 12 are in the same straight line. The rolling column 11 is rotatably mounted in the sleeve 12. The rolling column 11 contacts the surface of the rod shell 9. The axis of the rolling column 11 is staggered with the axis of the rod shell 9.

[0040] The force regulating rod 13 applies force to the rolling column 11 to squeeze the rolling column 11 toward the rod shell 9. The force regulating rod 13 is rotatable, and the rotation axis of the force regulating rod 13 intersects with the axis of the rod shell 9 and the axis of the rolling column 11 at the same time.

[0041] The grinding assembly further comprises a universal drive 3 , which is connected to the end of the rolling column 11 .

[0042] like Figure 2 、 3 As shown, the force regulating rod 13 presses the rolling column 11 toward the rod shell 9 to apply contact force. After the rolling column 11 and the rod shell 9 are in rolling contact, due to the misalignment of the axes, the rolling column 11 and the rod shell 9 will drive the latter to rotate when in rolling contact, and will also cause the latter to be subjected to axial friction and thus axially feed. The force regulating rod 13 can also rotate, and its rotation is to adjust the misalignment degree between the axes of the rolling column 11 and the rod shell 9, as shown in FIG. Figure 2The top view of the contact between the rolling cylinder 11 and the rod shell 9 is shown. The rotation axis of the force regulating rod 13 passes vertically through the intersection of the rod shell 9 and the axis projection of the rolling cylinder 11. When the force regulating rod 13 rotates, the rolling cylinder 11 rotates. If the angle between the axis of the rod shell 9 and the rolling cylinder 11 increases, when the rotational motion of the rolling cylinder 11 is transmitted to the rod shell 9, the rod shell 9 obtains a greater axial speed and the rotational speed decreases. If the angle between the axis of the rolling cylinder 11 and the rod shell 9 decreases, the axial speed of the rod shell 9 decreases. The angle between the rolling column 11 and the rod shell 9 should be adjusted to adapt to different grinding conditions. For example, when the vibration intensifies during the grinding process, it means that there are more burrs and roughness at the grinding position that need to be ground. At this time, the angle between the rolling column 11 and the rod shell 9 should be reduced to slow down the axial feed and increase the rotation speed. After adjusting the angle of the rolling column 11, its rotation drive should be adaptively adjusted, so a universal drive is used.

[0043] The grinding device comprises at least three groups of clamping and pushing components located at the same axial position of the rod shell 9, and the three groups of clamping and pushing components are evenly distributed on the outer side of the rod shell.

[0044] like Figure 1 As shown, three groups of clamping and pushing components clamp the rod shell 9 at an axial position together, and provide rolling friction for it to rotate and feed, ensuring the stable feeding of the rod shell 9. A single clamping and pushing component 1 plus a floating passive rotating wheel may have insufficient rotational power.

[0045] The rolling column 11 includes a clamping section 111 and an end shaft 112. The end shaft 112 extends from both ends of the clamping section 111. The diameter of the clamping section 111 is larger than that of the end shaft 112. The end shaft 112 is installed in the shaft sleeve 12 and one end of the end shaft 112 is connected to the universal drive 3. The two ends of the clamping section 111 are rounded, and the clamping section 111 is in contact with the rod shell 9.

[0046] like Figure 2 As shown, when the clamping section 111 is in rolling contact with the rod body shell 9, the motion is transmitted to cause the rod body shell 9 to rotate and axially feed.

[0047] The force regulating rod 13 includes a connecting rod 131, a piston disc 132, and a transposition platform 133. The piston disc 132 is rotatably installed in the base shell 14. The connecting rod 131 is set on one end face of the piston disc 132 facing the rolling column 11. The connecting rod 131 branches out at one end facing the rolling column 11 and is rotatably connected to the rolling column 11 through the shaft sleeve 12. The transposition platform 133 is set on the end face of the piston disc 132 away from the rolling column 11. The base shell 14 is filled with hydraulic oil.

[0048] like Figure 3 、 4As shown in Figure 6, the unequal pressure differences at both ends of the piston disk 132 can apply a contact force to the rolling column 11 to squeeze it toward the rod shell 9, and the transposition platform 133 is forced to rotate after being subjected to different pressure differences on both sides of the rotation direction with the connecting rod 131 as the axis, so that the force regulating rod 13 is adjusted in angle, thereby changing the angle between the rolling column 11 and the rod shell 9. Specifically, how to construct the pressure difference can be achieved by constructing several conditionally independent chambers in the base shell 14, and injecting oil with different pressures into the chambers to achieve pressure difference control.

[0049] A partition 141 is provided on the inner wall of the base shell 14 away from the rolling cylinder 11. The partition 141 extends radially from the inner wall of the base shell 14 and is bent at the end circumference. The partition 141 is rotated in the bent opening and embedded in the transposition platform 133. The interior of the base shell 14 is divided into three areas: a pressure chamber 142, a constant pressure chamber 143, and a back pressure chamber 144. The constant pressure chamber 143 is located on the side of the piston disc 132 close to the rolling cylinder 11. The pressure chamber 142 and the back pressure chamber 144 are located on the side of the piston disc 132 away from the rolling cylinder 11. The pressure chamber 142 is located outside the bent opening of the partition 141, and the back pressure chamber 144 is located inside the bent opening of the partition 141.

[0050] The oil pressure injected into the pressure chamber 142 is higher than that of the constant pressure chamber 143 and the back pressure chamber 144. A flow resistance structure is set on the oil pipes connected to the pressure chamber 142, the constant pressure chamber 143 and the back pressure chamber 144 to the outside. The pressure chamber 142 and the back pressure chamber 144 are connected when the vibration intensifies during the grinding process.

[0051] like Figure 3 、 4 As shown, the pressure in the pressure chamber 142 is higher than that in the constant pressure chamber 143, and the piston disc 132 is subjected to a pressure difference toward the rolling column 11, thereby applying a contact force between the rolling column 11 and the rod shell 9. When vibrating during the grinding process, the pressure chamber 142 and the back pressure chamber 144 are connected, and the pressure difference between the two chambers tends to be balanced. Compared with the initial state, the two sides of the circumference of the transposition platform 133 are subjected to unequal pressure differences, so position adjustment will occur and the force regulating rod 13 will be adjusted in angle.

[0052] A flow hole 134 is provided on the transposition platform 133, and the flow hole 134 connects the pressure chamber 142 and the back pressure chamber 143. The flow hole 134 has an expansion and contraction section, and a vibration ball 15 is provided in the expansion and contraction section. A positioning spring 16 is provided between the wall surface in the bending mouth of the partition 141 and the end face of the transposition platform 133 embedded in the bending mouth.

[0053] like Figure 4 、 5As shown, the two sides of the flow hole 134 are connected to the high and low pressure pressure chambers 142 and the back pressure chamber 144 respectively. In a stable state, when the force regulating rod 13 does not need to adjust the angle, the vibration ball 15 hits one end of the back pressure chamber 144 in the flow hole 134, and the two chambers are not connected. When vibration occurs, the vibration ball 15 no longer clings to the expansion and contraction section inclined surface in the flow hole 134, but shakes in the flow hole 134. A small amount of flow flows through the flow hole 134, allowing part of the oil in the pressure chamber 142 to enter the back pressure chamber. The oil pressure in the back-pressure chamber 144 increases. The oil pipes connected to the outside of these chambers all have flow resistance structures. Therefore, after the oil pressure leaks between the chambers, the oil pressure in the pressure chamber 142 will not be immediately supplemented by the external oil pressure, and the oil pressure in the back-pressure chamber 144 will not be immediately released to the outside and cannot increase. As long as the vibration continues, the pressure chamber 142 and the back-pressure chamber 144 will continue to be in a state of slight connection, and the pressure difference will be less than the state without vibration. Therefore, the vibration will cause the angle of the force regulating rod 13 to be adjusted, and the vibration can It is used to judge the roughness state of the surface of the rod shell 9 to be polished. If the surface entering the polishing station is relatively rough, the overall vibration of the device will be intensified. The angle adjustment of the force regulating rod 13 makes the rolling column 11 transmit more rotation speed to the rod shell 9 and reduce the axial feed speed of the rod shell 9, so that the rough area on the surface of the rod shell 9 stays longer at the polishing position, thereby increasing the polishing effect. In addition, due to the intensified vibration, if the rolling column 11 is still clamped with the original clamping force, it may cause the thin wall of the rod shell 9 To prevent deformation, it is necessary to slightly loosen the clamping force. The clamping force is the force applied by the force-adjusting rod 13 to the rolling column 11 on the axis of the connecting rod 131, which is determined by the pressure difference on both sides of the piston disc 132. During vibration, the oil in the pressure chamber 142 leaks to the back-pressure chamber 144, and the pressure in the pressure chamber 142 decreases, while the oil pressure in the constant-pressure chamber 143 remains unchanged. Therefore, during vibration, the force applied by the force-adjusting rod 11 to the rolling column 11 decreases, thereby slightly reducing the clamping effect on the rod shell 9 and preventing deformation of the clamping position during vibration.

[0054] There are at least six groups of clamping and pushing assemblies 1, and at least three groups of clamping and pushing assemblies 1 are respectively arranged at the two axial positions of the rod shell 9. At the same time, only the clamping and pushing assemblies 1 at one axial position actively rotate at the same time, and the clamping and pushing assemblies 1 at the two axial positions of the rod shell 9 are in opposite directions of the axial feed applied by the rod shell 9.

[0055] like Figure 1 As shown, the six groups of clamping and pushing components 1 can transport the rod shell 9 in two directions and can repeatedly polish a certain section of the rod shell 9.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A magnetostrictive level gauge housing processing and polishing device with automatic clamping force adjustment, used for processing a long rod housing (9), characterized in that: The grinding device comprises a clamping and pushing assembly (1) and a grinding roller (2); the clamping and pushing assembly (1) rotates to clamp the rod shell (9) and applies an axial friction force to the rod shell (9) at a contact position; the grinding roller (2) is arranged beside the rod shell (9) and contacts the surface of the rod shell (9); The axis of the grinding roller (2) is parallel to the axis of the rod shell (9); The clamping and pushing assembly comprises a rolling column (11), a shaft sleeve (12), a force regulating rod (13), and a base shell (14). The base shell (14) is fixedly mounted on the radially outer side of the rod shell (9). The force regulating rod (13) is arranged on the base shell (14) toward the rod shell (9). The force regulating rod (13) is divided into two at one end close to the rod shell (9) and a shaft sleeve (12) is arranged on each end. The two shaft sleeves (12) are in the same straight line. The rolling column (11) is rotatably mounted in the shaft sleeve (12). The rolling column (11) contacts the surface of the rod shell (9). The axis of the rolling column (11) is staggered with the axis of the rod shell (9). The force regulating rod (13) is a force applied by the rolling column (11) to cause the rolling column (11) to squeeze toward the rod shell (9). The force regulating rod (13) is rotatable, and the rotation axis of the force regulating rod (13) intersects with the axis of the rod shell (9) and the axis of the rolling column (11) at the same time. The grinding device further comprises a universal drive (3), wherein the universal drive (3) is connected to the end of the rolling column (11); The included angle between the rolling column (11) and the axis of the rod shell (9) is adjusted to be smaller when vibration occurs, thereby increasing the rotation speed of the rod shell (9) and reducing the axial feed speed.

2. The device for processing and polishing the housing of a magnetostrictive liquid level gauge with automatic clamping force adjustment according to claim 1, characterized in that: The grinding device comprises at least three groups of clamping and pushing components located at the same axial position of the rod shell (9), and the three groups of clamping and pushing components are evenly distributed on the outside of the rod shell.

3. The device for processing and polishing the housing of a magnetostrictive liquid level gauge with automatic clamping force adjustment according to claim 1, characterized in that: The rolling column (11) comprises a clamping section (111) and an end shaft (112), the clamping section (111) has two ends extending out of the end shaft (112), the clamping section (111) has a diameter larger than the end shaft (112), the end shaft (112) is installed in the shaft sleeve (12) and one end thereof is transmission-connected to the universal drive (3), the clamping section (111) has two ends rounded, and the clamping section (111) is in contact with the rod shell (9).

4. The device for processing and polishing the housing of a magnetostrictive liquid level gauge with automatic clamping force adjustment according to claim 3, characterized in that: The force regulating rod (13) includes a connecting rod (131), a piston disc (132), and a transposition platform (133). The piston disc (132) is rotatably mounted in a base shell (14). The connecting rod (131) is provided on one end face of the piston disc (132) facing the rolling column (11). The connecting rod (131) branches off at one end facing the rolling column (11) and is rotatably connected to the rolling column (11) through a shaft sleeve (12). The transposition platform (133) is provided on one end face of the piston disc (132) facing away from the rolling column (11). Hydraulic oil is filled in the base shell (14).

5. The magnetostrictive liquid level gauge housing processing and polishing device with automatic clamping force adjustment according to claim 4, characterized in that: A partition (141) is provided on the inner wall of the base shell (14) away from the rolling column (11), and the partition (141) radially extends from the inner wall of the base shell (14) and is bent at the end circumference. The partition (141) is rotated in the bending opening and embedded in the transposition platform (133). The interior of the base shell (14) is divided into three areas: a pressure chamber (142), a constant pressure chamber (143), and a back pressure chamber (144). The constant pressure chamber (143) is located on the side of the piston disc (132) close to the rolling column (11), and the pressure chamber (142) and the back pressure chamber (144) are located on the side of the piston disc (132) away from the rolling column (11). The pressure chamber (142) is located outside the bending opening of the partition (141), and the back pressure chamber (144) is located inside the bending opening of the partition (141). The oil pressure injected into the pressure chamber (142) is higher than that of the constant pressure chamber (143) and the back pressure chamber (144). A flow resistance structure is provided on the oil pipe connected to the pressure chamber (142), the constant pressure chamber (143) and the back pressure chamber (144). The pressure chamber (142) and the back pressure chamber (144) are connected when the vibration intensifies during the grinding process.

6. The device for processing and polishing the housing of a magnetostrictive liquid level gauge with automatic clamping force adjustment according to claim 5, characterized in that: A flow hole (134) is provided on the transposition platform (133), and the flow hole (134) is connected to the pressure chamber (142) and the back pressure chamber (144). The flow hole (134) has an expansion and contraction section, and a vibration ball (15) is provided in the expansion and contraction section. A positioning spring (16) is provided between the wall surface in the bending opening of the partition (141) and the end surface of the transposition platform (133) embedded in the bending opening.

7. The device for processing and polishing the housing of a magnetostrictive liquid level gauge with automatic clamping force adjustment according to claim 6, characterized in that: There are at least six groups of the clamping and pushing components (1), and at least three groups of the clamping and pushing components (1) are respectively arranged at two axial positions of the rod shell (9). At the same time, only the clamping and pushing components (1) at one axial position of the rod shell (9) actively rotate, and the clamping and pushing components (1) at the two axial positions of the rod shell (9) are applied to the rod shell (9) in opposite axial feeding directions.

Images