A precise positioning device suitable for various space clamping

Abstract

The present invention relates to the technical field of rust pipe recycling and processing, and specifically, to a precise positioning device suitable for clamping in various spaces. It includes an operating chamber and a positioning device installed inside the operating chamber. The present invention adjusts the position of the rust pipe in real time through the provided clamping assembly and driving assembly, and timely moves the rust pipe after rusting to the cleaning position, thereby improving the rust removal efficiency of the rust pipe, and the two operation processes are in the same closed space, so as to avoid the treated rust pipe being exposed to the air again, resulting in secondary rusting. At the same time, the clamping state between the clamping assembly and the rust pipe is adjusted in real time through the provided positioning assembly, and in the process of moving to the side of the arc plate, the connection between the clamping assembly and the rust pipe is loosened, so that the rust pipe can rotate freely between the clamping assembly, and in the process of contacting with the arc plate, the friction resistance generated between the two drives the rust pipe to rotate and scrape, removes the adhered rust, exposes the stubborn rust layer, and improves the removal effect of the later spraying.

Description

Technical Field

[0001] The invention relates to the technical field of rust pipe recovery and processing, in particular to a precise positioning device suitable for clamping in multiple spaces. Background Art

[0002] With the acceleration of industrialization, a large number of metal pipes are used and discharged, but a large number of metal pipes also lead to environmental pollution and energy waste. Therefore, recycling metal pipes has become a green way to solve the problem. Metal pipes are prone to rust, and although rusted pipes cannot be used anymore, they still have a high recycling value.

[0003] During the recycling process, rust pipes need to go through multiple processes, including scraping and flushing. Scraping means scraping the outside of the rust pipe with a ring with a steel wire to remove the rust on the outside of the rust pipe that is easy to fall off. The inside of the rust also contains a stubborn rust layer that is difficult to remove by scraping. At this time, it is necessary to spray the corresponding rust removal liquid for rust removal. Most traditional rust removal processes separate the scraping and flushing steps, which requires multiple disassembly and fixation of the rust pipe, reducing the efficiency of rust pipe treatment. At the same time, the rust pipe needs to be manually transported, further reducing the efficiency of rust pipe treatment. After rust removal, the rust pipe exposed to the air is easily oxidized, resulting in secondary rust.

[0004] In order to address the above problems, there is an urgent need for a precise positioning device suitable for multiple spatial clamping. Summary of the invention

[0005] The object of the present invention is to provide a precise positioning device suitable for various spatial clamping to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, a precise positioning device suitable for clamping in various spaces is provided, comprising an operating chamber and a positioning device installed inside the operating chamber, wherein the positioning device is located in the middle position inside the operating chamber and divides the internal space of the operating chamber into a rust removal chamber and a cleaning chamber, wherein the rust removal chamber is provided with a rust removal device for scraping rust from the edges of a rust pipe, and the cleaning chamber is provided with a flushing device for flushing the rust pipe after scraping rust, wherein the positioning device comprises a driving assembly, wherein a pair of clamping assemblies for clamping and limiting the upper and lower ends of the rust pipe are provided on the side of the driving assembly, wherein limiting rings are provided on the upper and lower sides of the operating chamber, wherein a limiting slide groove for free sliding of the clamping assembly is provided on the side of the limiting ring, and a positioning assembly is connected between the inner side of the limiting slide groove and the clamping assembly;

[0007] In the process of the clamping assembly moving from the rust removal chamber to the inner end of the cleaning chamber along the inner end of the limiting slide groove, the clamping assembly is under the action of the adjusting assembly. In the initial state, the distance between the two clamping assemblies and the two ends of the rust pipe gradually increases, and the rust pipe loses its fixed state. An arc plate is provided at the connecting position between the rust removal chamber and the cleaning chamber, and a scraper is provided on the side of the arc plate for contacting the outer side of the rust pipe that has lost its clamping state and driving the rust pipe to rotate. Subsequently, the rust pipe is driven to separate from the side of the arc plate through the driving assembly and move to the inner end of the cleaning chamber. Under the action of the adjusting assembly, the rust pipe is fixedly clamped on the side of the flushing device.

[0008] As a further improvement of the present technical solution, the driving assembly includes a servo motor and a connecting shaft installed at the bottom end of the servo motor, the servo motor is fixed at the top position of the operating bin, the connecting shaft is coaxially connected to the bottom end of the servo motor, two clamping assemblies are respectively fixed on the upper and lower sides of the connecting shaft, and the connecting shaft is located at the inner end of the operating bin.

[0009] As a further improvement of the present technical solution, the clamping assembly includes a connecting frame, one end of the connecting frame is sleeved on the outside of the connecting shaft, and the other end of the connecting frame is provided with a connecting port, a clamping head is inserted into the inner end of the connecting port, and the bottom end of the clamping head is connected to a plug column, and the plug column extends into the interior of the rust pipe, and a plurality of positioning blocks are arranged on the side of the clamping head near the bottom end, and a plurality of positioning grooves are provided on the inner side of the connecting port to maintain plug-in cooperation with the positioning block, and a limiting spring is connected between the bottom end of the positioning block and the inner end of the positioning groove.

[0010] As a further improvement of the present technical solution, the positioning assembly includes a dislocation block, the end of the clamping head extends into the inner end of the limiting slide groove and maintains contact and sliding with the side of the dislocation block, the dislocation block is located at the inner end of the limiting slide groove, one end of the dislocation block is aligned with the bottom end of the rust removal equipment, the other end of the dislocation block is aligned with the bottom end of the flushing equipment, the middle position of the dislocation block is aligned with the bottom end of the arc plate, the dislocation block has a structure with a low middle and high two ends, and the two ends of the dislocation block extend toward the middle, and its height gradually decreases.

[0011] As a further improvement of the technical solution, a ball is provided at the top of the clamping head, the ball is kept in rolling connection with the top of the clamping head, and the end of the ball is kept in contact and sliding with the side of the offset block.

[0012] As a further improvement of the present technical solution, wedge blocks are provided on both sides of the clamping head, and a pair of slots that are plugged into and fit with the wedge blocks are provided on both sides of the inner end of the limiting slide groove, and a return spring is connected between the wedge block and the inner end of the clamping head, and one pair of the slots is aligned with the side of the rust removal equipment, and the other pair of the slots is aligned with the side of the flushing equipment.

[0013] As a further improvement of the present technical solution, a covering ring is provided at the top of the limiting slide groove, an outer ring is sleeved on the outside of the covering ring, an inner groove is opened on the inside of the limiting slide groove, the outer ring is slidably connected to the inner end of the inner groove, the clamping head passes through the covering ring and extends into the inner end of the limiting slide groove, and drives the covering ring to make a circular motion along the inner side of the limiting slide groove.

[0014] As a further improvement of the technical solution, isolation plates are provided on both sides of the connecting shaft, and the two isolation plates are symmetrically arranged on both sides of the connecting frame, and a 90-degree angle is formed between the isolation plates and the connecting frame.

[0015] As a further improvement of the technical solution, a collecting bin is provided at the bottom of the operating bin, a collecting groove is provided at the top of the collecting bin, the collecting groove is connected to the inner end of the operating bin, and the bottom end of the isolation plate is in contact and sliding contact with the top end of the covering ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the precise positioning device applicable to clamping in various spaces, the position of the rust pipe is adjusted in real time by the provided clamping assembly and the driving assembly, and the rust pipe after scraping is moved to the cleaning position in time, so as to improve the rust removal efficiency of the rust pipe, and the two operation processes are in the same closed space, so as to avoid the treated rust pipe being exposed to the air again, resulting in secondary rusting. At the same time, the clamping state between the clamping assembly and the rust pipe is adjusted in real time by the provided positioning assembly, and in the process of moving to the side of the arc plate, the connection between the clamping assembly and the rust pipe is loosened, so that the rust pipe can rotate freely between the clamping assembly, and in the process of contacting with the arc plate, the friction resistance generated between the two drives the rust pipe to rotate and scrape, so as to remove the adhered rust, expose the stubborn rust layer, and improve the removal effect of the later spraying.

[0018] 2. In the precise positioning device suitable for clamping in various spaces, the outer side of the limiting slide groove is sealed by a covering ring to prevent rust generated during rust removal from entering the inner end of the limiting slide groove. At the same time, the covering ring maintains a sliding connection with the inner end of the limiting slide groove through an outer ring. During the sliding process of the clamping head, the covering ring will be driven to slide synchronously along the inner end of the limiting slide groove, thereby reducing the obstruction to the position adjustment of the rust pipe.

[0019] 3. In the precise positioning device suitable for clamping in various spaces, the isolation effect between the rust removal chamber and the cleaning chamber is achieved by setting an isolation plate. When the rust pipe moves to the side of the rust removal equipment or the side of the flushing equipment, the two isolation plates are set in parallel between the rust removal chamber and the cleaning chamber to form an isolation surface between the two chambers, thereby avoiding the rust stains generated by the two work processes from interlacing with each other, reducing the subsequent cleaning work, and improving the rust removal efficiency of the rust pipe.

[0020] 4. In the precise positioning device suitable for clamping in various spaces, part of the rust stains not adhering to the top of the covering ring are collected and processed through the provided collecting bin. Meanwhile, when the isolation plate rotates following the connecting shaft, its bottom contacts the top of the covering ring, and the rust stains adhering to the top of the covering ring are scraped off. The centrifugal force generated during the rotation brings the scraped rust stains into the inner end of the collecting bin for centralized collection, so as to remove the rust stains adhering to the covering ring in time and reduce the difficulty of later cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 It is a cross-sectional view of the operating chamber structure of the present invention;

[0024] Figure 4 It is a split cross-sectional view of the limit ring structure of the present invention;

[0025] Figure 5 For the present invention Figure 4 A local enlarged view of point A;

[0026] Figure 6 This is a structural breakdown diagram of the positioning device of the present invention;

[0027] Figure 7 For the present invention Figure 6 A partial enlarged view of point B;

[0028] Figure 8 For the present invention Figure 6 A partial enlarged view of point C.

[0029] The meaning of each number in the figure is:

[0030] 10. Operation chamber; 110. Rust removal equipment; 120. Flushing equipment; 130. Limiting ring; 131. Limiting slideway; 1311. Card slot; 1312. Inner slot; 132. Dislocation block; 133. Covering ring; 140. Arc plate; 150. Collection chamber;

[0031] 20. Positioning device; 210. servo motor; 220. connecting shaft; 230. connecting frame; 231. positioning groove; 240. isolation plate; 250. clamping head; 251. positioning block; 252. limit spring; 253. wedge block; 254. ball. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 8 As shown, a precise positioning device suitable for clamping in various spaces is provided, including an operating chamber 10 and a positioning device 20 installed inside the operating chamber 10, the positioning device 20 is located in the middle position inside the operating chamber 10, and divides the internal space of the operating chamber 10 into a rust removal chamber and a cleaning chamber, a rust removal device 110 for scraping rust from the edges of rust pipes is arranged inside the rust removal chamber, a flushing device 120 for flushing the rust pipes after scraping rust is arranged inside the cleaning chamber, the positioning device 20 includes a driving component, a pair of clamping components for clamping and limiting the upper and lower ends of the rust pipes are arranged on the side of the driving component, limiting rings 130 are arranged on the upper and lower sides of the operating chamber 10, limiting slide grooves 131 for free sliding of the clamping component are opened on the side of the limiting ring 130, and a positioning component is connected between the inner side of the limiting slide groove 131 and the clamping component;

[0034] In the process of the clamping assembly moving from the rust removal chamber to the inner end of the cleaning chamber along the inner end of the limiting slide groove 131, the clamping assembly is under the action of the positioning assembly. In the initial state, the distance between the two clamping assemblies and the two ends of the rust pipe gradually increases, and the rust pipe loses its fixed state. An arc plate 140 is provided at the connecting position of the rust removal chamber and the cleaning chamber, and a scraper is provided on the side of the arc plate 140 for contacting the outer side of the rust pipe that has lost its clamping state and driving the rust pipe to rotate. Subsequently, the rust pipe is driven to separate from the side of the arc plate 140 through the driving assembly and move to the inner end of the cleaning chamber. The rust pipe is fixedly clamped on the side of the flushing device 120 under the action of the positioning assembly.

[0035] When in use, during the rust removal process of the rust pipe, the two clamping assemblies are first driven by the driving assembly to move to the middle position facing the side of the arc plate 140, and the arc plate 140 is slid to form a side opening for installing the rust pipe on the side of the operation chamber 10, and the rust pipe to be processed is extended into the inner end of the operation chamber 10 through the side opening, and the upper and lower ends of the rust pipe are respectively aligned with the two clamping assemblies, and the rust pipe is clamped by the two clamping assemblies. At this time, the driving assembly drives the rust pipe to be processed to the inner end of the rust removal chamber through the clamping assembly, and during the movement of the two clamping assemblies , it will slide along the inner end of the limiting slide groove 131 at the corresponding position. When the rust pipe moves to the side position facing the rust removal device 110, the clamping component at the current position is fixed by the positioning component, and the rust removal device 110 is started. The rust removal device 110 performs a cyclic scraping process along the outer side of the rust pipe to scrape off the rust on the outer side of the rust pipe. After the rust scraping work is completed, the two clamping components are continued to be driven by the driving component to separate from the inner end of the rust removal chamber, and the rust pipe is driven to gradually move toward the inner end of the cleaning chamber. In the process of moving to the connection position between the rust removal chamber and the cleaning chamber, The distance between the clamping assembly and the rust pipe gradually increases, and at this time the clamping assembly can still drive the rust pipe to move. When the upper and lower ends of the rust pipe lose the clamping fixed state, they can rotate freely with the clamping assembly, and the arc plate 140 is just at the connection position between the rust removal chamber and the cleaning chamber. When the rust pipe passes through, it will contact the side of the arc plate 140. The friction resistance generated between the two will drive the rust pipe and the clamping assembly to rotate, and remove the rust adhered to the outside of the rust pipe, further improving the scraping efficiency of the rust on the outside of the rust pipe, and preventing the rust that has not been separated from the adhesion from forming a rust layer on the outside of the rust pipe again. , which prevents the contact between the rust removal liquid sprayed later and the stubborn rust layer. When the rust pipe is separated from the side of the arc plate 140 by the clamping assembly, it will move to the inner end of the cleaning chamber. Under the action of the positioning assembly, the two clamping assemblies gradually approach the two ends of the rust pipe, and re-clamp and fix the two ends of the rust pipe until the rust pipe moves to the side of the flushing device 120. At this time, the two clamping assemblies are respectively clamped and fixed at the upper and lower ends of the rust pipe by the positioning assembly, fixing the rust pipe in the current position. At this time, the rust pipe after the rust scraping is completed is sprayed with rust removal liquid through the flushing device 120.

[0036] The present invention adjusts the position of the rust pipe in real time through the provided clamping assembly and the driving assembly, and promptly moves the rust pipe after scraping to the cleaning position, thereby improving the rust removal efficiency of the rust pipe, and the two operation processes are in the same closed space, thereby preventing the treated rust pipe from being exposed to the air again, causing secondary rusting. At the same time, the provided positioning assembly adjusts the clamping state between the clamping assembly and the rust pipe in real time, and in the process of moving to the side of the arc plate 140, the connection between the clamping assembly and the rust pipe is loosened, so that the rust pipe can rotate freely between the clamping assembly, and in the process of contacting with the arc plate 140, the friction resistance generated between the two drives the rust pipe to rotate and scrape, thereby removing the adhered rust, exposing the stubborn rust layer, and improving the later spray removal effect.

[0037] In addition, the driving assembly includes a servo motor 210 and a connecting shaft 220 installed at the bottom end of the servo motor 210. The servo motor 210 is fixed at the top position of the operating bin 10, and the connecting shaft 220 is coaxially connected to the bottom end of the servo motor 210. The two clamping assemblies are respectively fixed on the upper and lower sides of the connecting shaft 220, and the connecting shaft 220 is located at the inner end of the operating bin 10. In the process of adjusting the position of the clamping assembly, the servo motor 210 is first started, and the servo motor 210 drives the connecting shaft 220 to rotate along the inner end of the operating bin 10, driving the two clamping assemblies to carry the rust pipe for position adjustment, thereby completing the transformation and adjustment of the rust pipe processing space, reducing unnecessary transportation work, and improving the rust pipe processing efficiency.

[0038] Furthermore, the clamping assembly includes a connecting frame 230, one end of the connecting frame 230 is sleeved on the outside of the connecting shaft 220, and the other end of the connecting frame 230 is provided with a connecting port, the inner end of the connecting port is plugged with a clamping head 250, the bottom end of the clamping head 250 is connected to a plug column, and the plug column extends into the interior of the rust pipe, and a plurality of positioning blocks 251 are arranged near the bottom end of the side of the clamping head 250, and a plurality of positioning grooves 231 are provided on the inner side of the connecting port to keep plugging and matching with the positioning block 251, and the bottom end of the positioning block 251 is connected to the positioning groove. The inner ends of the two clamping heads 250 are connected with the limiting springs 252. When clamping and positioning the rust pipe, the two clamping heads 250 are first moved away from the rust pipe to move the two clamping heads 250 away from each other and form a gap for the rust pipe to be sleeved. Each positioning block 251 slides along the inner end of the corresponding positioning groove 231 and squeezes the limiting springs 252. At this time, the rust pipe is placed between the two connecting frames 230, the two clamping heads 250 are released, and each limiting spring 252 is reset, driving the clamping heads 250 to bottom out. The plug post at the end is inserted into the upper and lower ends of the rust pipe. In the process of the rust pipe moving from the rust removal chamber to the cleaning chamber, the distance between the clamping head 250 and the rust pipe is adjusted under the action of the positioning assembly. In the process of moving from the rust removal chamber to the side of the arc plate 140, the distance between the clamping head 250 and the rust pipe gradually increases. At this time, the upper and lower ends of the rust pipe are not clamped and fixed. When the plug post is still inserted into the inner end of the rust pipe, the rust pipe is driven to move. At this time, the rust pipe and the clamping head 250 maintain a rotational connection. Therefore, when passing through the side of the arc plate 140, the rust pipe can be driven to rotate by the friction resistance generated by the contact between the two. In the process of moving from the side of the arc plate 140 to the inner end of the cleaning chamber, the distance between the clamping head 250 and the rust pipe gradually decreases until the clamping head 250 fits with the rust pipe. At this time, the rust pipe is fixed by the static friction generated at the contact position between the clamping head 250 and the rust pipe. At this time, the rust pipe cannot keep rotating with the clamping head 250, ensuring that the flushing equipment 120 can evenly spray the rust removal liquid on the rust pipe, thereby improving the spraying efficiency.

[0039] Furthermore, the positioning assembly includes a dislocation block 132, the end of the clamping head 250 extends into the inner end of the limiting slide groove 131 and keeps in contact with the side of the dislocation block 132 for sliding, the dislocation block 132 is located at the inner end of the limiting slide groove 131, one end of the dislocation block 132 is aligned with the bottom end of the rust removal device 110, the other end of the dislocation block 132 is aligned with the bottom end of the flushing device 120, the middle position of the dislocation block 132 is aligned with the bottom end of the arc plate 140, the dislocation block 132 is low in the middle and high at both ends, and the two ends of the dislocation block 132 extend toward the middle, and its height gradually decreases. When the rust pipe moves from the rust removal chamber to the arc plate 140, when the clamping head 250 slides along the inner end of the limiting slide groove 131, due to the dislocation block 132 contacting the end of the clamping head 250 The height gradually decreases, and the clamping head 250 gradually moves away from the rust pipe under the action of each limit spring 252, causing a gap to be formed between the two, so that the rust pipe loses its clamping and fixing state, so that the rust pipe can be guaranteed to rotate freely when it contacts the side of the arc plate 140. When the rust pipe moves from the side of the arc plate 140 to the cleaning chamber, the contact height between the dislocation block 132 and the end of the clamping head 250 gradually increases, which will drive the clamping head 250 to gradually move closer to the rust pipe position, causing the bottom surface of the clamping head 250 to contact the end of the rust pipe, and re-fix the connection state between the rust pipe and the clamping head 250, ensuring that the clamping state of the rust pipe is maintained in the two working process states of flushing and scraping, thereby improving the rust removal efficiency of the rust pipe.

[0040] Because the friction resistance generated by the contact surface between the end of the clamping head 250 and the side of the offset block 132 is always opposite to the sliding direction of the clamping head 250 during the sliding contact, the normal sliding operation of the clamping head 250 is hindered. Specifically, a ball 254 is provided at the top of the clamping head 250, and the ball 254 is kept in rolling connection with the top of the clamping head 250, and the end of the ball 254 is kept in sliding contact with the side of the offset block 132. The contact area between the end of the clamping head 250 and the side of the offset block 132 is reduced by the provided ball 254, and the contact area is proportional to the friction resistance. Reducing the contact area means reducing the friction resistance between the two, thereby reducing the obstruction encountered by the clamping head 250 during the sliding process and improving the efficiency of adjusting the position of the rust pipe.

[0041] In addition, wedge blocks 253 are provided on both sides of the clamping head 250, and a pair of slots 1311 are provided on both sides of the inner end of the limiting slide 131 to keep plugging with the wedge blocks 253. A return spring is connected between the wedge blocks 253 and the inner end of the clamping head 250, and one pair of slots 1311 is aligned with the side of the rust removal device 110, and the other pair of slots 1311 is aligned with the side of the flushing device 120. When the clamping head 250 slides along the inner end of the limiting slide 131, the two wedge blocks 253 are squeezed by the inner wall of the limiting slide 131. , it will reversely squeeze the reset spring connected to it and extend into the inner side of the clamping head 250 until the wedge block 253 moves to a position aligned with the opening of the slot 1311. At this time, the end of the wedge block 253 loses the squeezed state, and under the action of the reset spring, the wedge block 253 is driven to insert into the inner end of the slot 1311 at the corresponding position, fixing the clamping head 250 in the current position state, and the two pairs of slots 1311 are respectively aligned with the positions of the rust removal equipment 110 and the flushing equipment 120, so as to accurately locate different rust removal areas of the rust pipe.

[0042] Since the two limiting slide grooves 131 are in an exposed state during the rust removal process of the rust pipe, the limiting slide groove 131 at the bottom of the operation chamber 10 is easy to accumulate rust, which will not only affect the centralized collection of rust in the later stage, but also block the sliding channel of the clamping head 250, affecting the position adjustment of the rust pipe. Furthermore, a covering ring 133 is provided at the top of the limiting slide groove 131, an outer ring is sleeved on the outer side of the covering ring 133, an inner groove 1312 is opened on the inner side of the limiting slide groove 131, and the outer ring is kept in sliding connection with the inner end of the inner groove 1312, and the clamping head 250 The covering ring 133 extends into the inner end of the limiting slot 131, and drives the covering ring 133 to make a circular motion along the inner side of the limiting slot 131. The outer side of the limiting slot 131 is sealed by the setting of the covering ring 133 to prevent rust generated during the rust removal process from entering the inner end of the limiting slot 131. At the same time, the covering ring 133 maintains a sliding connection with the inner end of the limiting slot 131 through the outer ring. During the sliding process of the clamping head 250, the covering ring 133 will be driven to slide synchronously along the inner end of the limiting slot 131, thereby reducing the obstacles to the adjustment of the position of the rust pipe.

[0043] Furthermore, isolation plates 240 are provided on both sides of the connecting shaft 220, and the two isolation plates 240 are symmetrically arranged on both sides of the connecting frame 230, and a 90-degree angle is formed between the isolation plates 240 and the connecting frame 230. The isolation plates 240 are arranged to isolate the rust removal chamber and the cleaning chamber. When the rust pipe moves to the side of the rust removal equipment 110 or the side of the flushing equipment 120, the two isolation plates 240 are arranged in parallel between the rust removal chamber and the cleaning chamber to form an isolation surface between the two chambers, thereby avoiding the rust stains generated by the two work processes from interlacing with each other, reducing the later cleaning work, and improving the rust removal efficiency of the rust pipe.

[0044] Since the top of the covering ring 133 is exposed at the inner end of the operating chamber 10, rust stains generated during the scraping and flushing of the rust pipe will adhere to the top of the covering ring 133. If it is not cleaned for a long time, the rust stains will solidify and become difficult to clean later. In addition, a collecting chamber 150 is provided at the bottom of the operating chamber 10. A collecting groove is provided at the top of the collecting chamber 150, and the collecting groove is connected to the inner end of the operating chamber 10. The bottom end of the isolation plate 240 keeps in contact and sliding with the top of the covering ring 133. The rust stains that are not adhered to the top of the covering ring 133 are collected and processed by the provided collecting chamber 150. At the same time, when the isolation plate 240 rotates following the connecting shaft 220, its bottom is in contact with the top of the covering ring 133, and the rust stains adhered to the top of the covering ring 133 will be scraped off, and the scraped rust stains will be brought into the inner end of the collecting chamber 150 through the centrifugal force generated during the rotation for centralized collection, so as to remove the rust stains adhered to the covering ring 133 in time and reduce the difficulty of later cleaning.

[0045] The above shows and describes 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A precise positioning device suitable for multiple space clamping, comprising an operating chamber (10) and a positioning device (20) installed inside the operating chamber (10), wherein the positioning device (20) is located in the middle of the operating chamber (10) and divides the internal space of the operating chamber (10) into a rust removal chamber and a cleaning chamber, wherein a rust removal device (110) for scraping rust off the edge of a rusted pipe is arranged inside the rust removal chamber, and a flushing device (120) for flushing the rusted pipe after the rust is scraped is arranged inside the cleaning chamber, characterized in that: The positioning device (20) comprises a driving component, a pair of clamping components for clamping and limiting the upper and lower ends of the rust pipe are arranged on the side of the driving component, and limiting rings (130) are arranged on the upper and lower sides of the operating chamber (10), and a limiting slide groove (131) for free sliding of the clamping component is opened on the side of the limiting slide groove (131), and a positioning component is connected between the inner side of the limiting slide groove (131) and the clamping component; During the process of the clamping assembly moving from the rust removal chamber to the inner end of the cleaning chamber along the inner end of the limiting slide groove (131), the clamping assembly, under the action of the positioning assembly, in the initial state, the distance between the two clamping assemblies and the two ends of the rust pipe gradually increases, and the rust pipe loses its fixed state, and an arc plate (140) is provided at the connection position between the rust removal chamber and the cleaning chamber, and a scraper is provided on the side of the arc plate (140) for contacting the outer side of the rust pipe that loses its clamping state and driving the rust pipe to rotate, and then the rust pipe is driven to separate from the side of the arc plate (140) through the driving assembly and move toward the inner end of the cleaning chamber, and the rust pipe is fixedly clamped on the side of the flushing device (120) under the action of the positioning assembly; The driving assembly comprises a servo motor (210) and a connecting shaft (220) mounted at the bottom end of the servo motor (210); the servo motor (210) is fixed at the top end of the operating chamber (10); the connecting shaft (220) is coaxially connected to the bottom end of the servo motor (210); two clamping assemblies are respectively fixed at the upper and lower sides of the connecting shaft (220); and the connecting shaft (220) is located at the inner end of the operating chamber (10); The clamping assembly comprises a connecting frame (230), one end of the connecting frame (230) is sleeved on the outside of the connecting shaft (220), the other end of the connecting frame (230) is provided with a connecting port, the inner end of the connecting port is plugged with a clamping head (250), the bottom end of the clamping head (250) is connected to a plug post, the plug post extends into the interior of the rust pipe, a plurality of positioning blocks (251) are arranged on the side of the clamping head (250) near the bottom end, a plurality of positioning grooves (231) are provided on the inner side of the connecting port to maintain plug-in cooperation with the positioning block (251), and a limiting spring (252) is connected between the bottom end of the positioning block (251) and the inner end of the positioning groove (231); The positioning assembly comprises a dislocation block (132), the end of the clamping head (250) extends into the inner end of the limiting slide groove (131) and maintains contact and sliding with the side of the dislocation block (132), the dislocation block (132) is located at the inner end of the limiting slide groove (131), one end of the dislocation block (132) is aligned with the bottom end of the rust removal device (110), the other end of the dislocation block (132) is aligned with the bottom end of the flushing device (120), the middle position of the dislocation block (132) is aligned with the bottom end of the arc plate (140), the dislocation block (132) is in a structure with a low middle and high two ends, and the two ends of the dislocation block (132) extend toward the middle, and its height gradually decreases.

2. The precise positioning device applicable to multiple space clamping according to claim 1, characterized in that: A ball (254) is provided at the top of the clamping head (250); the ball (254) is in rolling connection with the top of the clamping head (250), and the end of the ball (254) is in sliding contact with the side of the dislocation block (132).

3. The precise positioning device applicable to multiple space clamping according to claim 2 is characterized in that: Wedge blocks (253) are provided on both sides of the clamping head (250), and a pair of slots (1311) for plugging and fitting with the wedge blocks (253) are provided on both sides of the inner end of the limiting slide groove (131). A return spring is connected between the wedge block (253) and the inner end of the clamping head (250), and one pair of the slots (1311) is aligned with the side of the rust removal device (110), and the other pair of the slots (1311) is aligned with the side of the flushing device (120).

4. The precise positioning device applicable to multiple space clamping according to claim 3 is characterized in that: A covering ring (133) is arranged at the top of the limiting slide groove (131), an outer ring is sleeved on the outer side of the covering ring (133), an inner groove (1312) is opened on the inner side of the limiting slide groove (131), the outer ring is slidably connected to the inner end of the inner groove (1312), the clamping head (250) passes through the covering ring (133) and extends into the inner end of the limiting slide groove (131), and drives the covering ring (133) to perform a circular motion along the inner side of the limiting slide groove (131).

5. The precise positioning device applicable to multiple space clamping according to claim 4, characterized in that: Isolation plates (240) are arranged on both sides of the connection shaft (220), and the two isolation plates (240) are symmetrically arranged on both sides of the connection frame (230), and a 90-degree angle is formed between the isolation plates (240) and the connection frame (230).

6. The precise positioning device applicable to multiple space clamping according to claim 5, characterized in that: A collecting bin (150) is provided at the bottom end of the operating bin (10), a collecting groove is provided at the top end of the collecting bin (150), the collecting groove is connected to the inner end of the operating bin (10), and the bottom end of the isolation plate (240) is in contact and sliding relationship with the top end of the covering ring (133).

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