Processing technology and clamping device of grouting sleeve with built-in piezoelectric functional element

Abstract

The application relates to a grouting sleeve processing technology with a built-in piezoelectric functional element and a clamping device thereof, which comprises the following steps: selecting a piezoelectric functional element consistent with the inner diameter of a grouting sleeve; welding a lead wire on the piezoelectric functional element; smearing a bonding layer on the outside of the piezoelectric functional element; processing a clamping device matched with the grouting sleeve and the piezoelectric functional element; installing the piezoelectric functional element on the clamping device; extending the clamping device carrying the piezoelectric functional element into the inside of the grouting sleeve; fixing the clamping device to the grouting sleeve; connecting the clamping device to external rotating equipment, and configuring the rotating equipment to rotate synchronously with rolling equipment; starting the rotating equipment and the rolling equipment, and extruding and bonding the piezoelectric functional element on the inner wall of the grouting sleeve by the deformation of the grouting sleeve generated when a shear slot is formed. The application has the effect of integrally and roll-pressing forming by bonding and fixing the piezoelectric functional element on the inner wall of the grouting sleeve without damage while the shear slot is processed.

Description

TECHNICAL FIELD

[0001] The application relates to the field of grouting sleeve manufacturing processes, in particular to a grouting sleeve manufacturing process with an embedded piezoelectric functional element and a clamping device thereof. BACKGROUND

[0002] Fabricated concrete structure refers to that the structure is deepened designed and split into components before building construction, the corresponding prefabricated components are produced by a prefabricated component factory, and finally the prefabricated components produced are transported to the construction site for installation and splicing operation. The connection quality of the component node position greatly affects the safety of the fabricated building structure, and the steel bar connection is an important part of the post-poured node of the concrete component, which is related to the node connection quality, and at present, the connection between the steel bars at the component node position mainly adopts the grouting sleeve connection.

[0003] The grouting sleeve connection refers to connecting the steel bars at both ends of the prefabricated component with the sleeve, injecting self-compacting and slightly-expanding grouting material into the sleeve through the grouting hole, and forming a high-strength connection joint after the grouting material is hardened. If the compactness of the grouting material in the sleeve is insufficient, the grouting sleeve will be damaged by the steel bar pulling out under the action of load, which seriously affects the safety of the structure. Therefore, the compactness of the grouting material in the grouting sleeve needs to be detected each time grouting is performed. The piezoelectric functional element vibration method has the advantages of low detection cost, good portability, no damage to the sleeve and the component, and is widely used in engineering construction.

[0004] However, it is found in the use process of the detection method that the annular intelligent piezoelectric functional element embedded in the sleeve has good detection effect on the grouting fullness. However, during the processing of the grouting sleeve, a shear groove needs to be formed on the outer wall, which causes a certain deformation at the position where the shear groove is formed, and the piezoelectric functional element is relatively fragile and is prone to unevenness, installation damage and other situations at the position where the shear groove is formed, so that the installation of the annular intelligent piezoelectric functional element in the grouting sleeve has high requirements on the construction process and is difficult to realize. SUMMARY

[0005] In order to facilitate the lossless installation of the piezoelectric functional element in the grouting sleeve, the application provides a grouting sleeve processing technology of a piezoelectric functional element and a clamping device thereof.

[0006] In the first aspect, the grouting sleeve processing technology of the application with an embedded piezoelectric functional element adopts the following technical scheme:

[0007] A grouting sleeve processing technology of a piezoelectric functional element, comprising the following steps:

[0008] Select a piezoelectric functional element matched with the inner diameter of the grouting sleeve;

[0009] Apply an adhesive layer on the outside of the piezoelectric functional element;

[0010] processing a clamping device matched with the grouting sleeve and the piezoelectric functional element;

[0011] mounting the piezoelectric functional element on the clamping device;

[0012] carrying the piezoelectric functional element into the grouting sleeve with the clamping device;

[0013] fastening the clamping device with the grouting sleeve;

[0014] connecting the clamping device to an external rotating device and configuring the rotating device to rotate synchronously with the rolling device;

[0015] starting the rotating device and the rolling device, and extruding and bonding the piezoelectric functional element on the inner wall of the grouting sleeve with the deformation of the grouting sleeve caused by the formation of the shear groove.

[0016] By adopting the technical scheme, before mounting, a bonding layer facilitating bonding with the inner wall of the grouting sleeve is applied to the outer edge of the annular piezoelectric functional element, and then the piezoelectric functional element is connected to the clamping device; during processing, the clamping device is carried into the grouting sleeve and fastened with the grouting sleeve, so that the clamping device and the grouting sleeve do not move relatively; then the rolling device and the rotating device connected with the clamping device are started synchronously, so that the clamping device, the piezoelectric functional element, the grouting sleeve and the rolling device of the application rotate synchronously; while the rolling device processes the shear groove on the outer wall of the grouting sleeve, the piezoelectric functional element is synchronously bonded on the inner wall of the grouting sleeve at the corresponding position of the shear groove by the extrusion force to the inside during the formation of the shear groove; after the piezoelectric functional element is fixed, the clamping device is loosened, and the clamping device of the application is pulled out under the action of external force, so that the piezoelectric functional element is fixed on the inner wall of the grouting sleeve; during processing of the shear groove, the piezoelectric functional element is mounted in the grouting sleeve;

[0017] Preferably, an epoxy resin isolation layer is applied to the positions of the welding points of the piezoelectric functional element and the lead wires.

[0018] By adopting the technical scheme, the epoxy resin isolation layer is applied to the two sides of the annular surface of the piezoelectric functional element, so as to protect the piezoelectric functional element during normal operation of the piezoelectric functional element in the grouting material and normal transmission of vibration waves.

[0019] Preferably, the clamping device matched with the grouting sleeve and the piezoelectric functional element comprises the following steps:

[0020] processing an inner mounting sleeve with an inner diameter consistent with the inner diameter of the grouting sleeve according to the inner diameter of the grouting sleeve;

[0021] processing a positioning boss with an outer diameter consistent with the outer diameter of the piezoelectric functional element at one end of the inner mounting sleeve;

[0022] A mounting boss with an outer diameter matching the inner diameter of the piezoelectric functional element is machined on the outer end face of the positioning boss.

[0023] A clamping component is machined according to the outer diameter of the grouting sleeve to clamp the grouting sleeve.

[0024] By adopting the above technical solution, a first positioning step is formed between the positioning boss and the built-in mounting sleeve, and a second positioning step is formed between the mounting boss and the positioning boss for installing the piezoelectric functional element. During installation, the annular piezoelectric functional element is fitted onto the mounting boss, which facilitates the installation and removal of the piezoelectric functional element. The positioning boss can effectively reduce the probability of damage to the piezoelectric functional element due to deformation of the grouting sleeve. At the same time, the built-in mounting sleeve extends into the grouting sleeve, which can provide a certain support for the grouting sleeve to reduce the deformation of the grouting sleeve in the corresponding part.

[0025] Preferably, mounting the piezoelectric functional element on the clamping device includes the following steps:

[0026] A metal layer is coated on the inner edge of the piezoelectric functional element;

[0027] A magnetic layer is coated on the outer wall of the positioning boss;

[0028] The piezoelectric functional element is sleeved and magnetically attached to the mounting boss.

[0029] By adopting the above technical solution, when the piezoelectric functional element is mounted on the mounting boss, the magnetic layer on the mounting boss is closely attached to the metal layer on the inner edge of the piezoelectric functional element, reducing the probability of the piezoelectric functional element slipping off the positioning boss when the grouting sleeve rotates. Furthermore, after the grouting sleeve rolling operation is completed, the piezoelectric functional element and the grouting sleeve form an integral whole, which facilitates the separation of the piezoelectric functional element from the clamping device under the action of external force without damaging the piezoelectric functional element.

[0030] Preferably, a wire groove is formed on the side wall of the built-in mounting sleeve for inserting the wire of the piezoelectric functional element, and the wire groove extends to the mounting boss, and the depth of the wire groove is greater than the outer diameter of the wire.

[0031] By adopting the above technical solution, the wires pass through the reserved wire groove, ensuring that when the wires are placed in the wire groove, they do not protrude from the outer surface of the built-in mounting sleeve, preventing damage to the wires during the grouting sleeve rolling operation, and ensuring the normal operation of the piezoelectric element.

[0032] Preferably, machining a clamping member for clamping the grouting sleeve according to the outer diameter of the grouting sleeve includes the following steps:

[0033] An L-shaped clamping ring is welded and fixed at the end of the built-in mounting sleeve away from the positioning step, and the gap between the clamping ring and the built-in mounting sleeve is greater than the wall thickness of the grouting sleeve.

[0034] Multiple threaded holes are formed on the side wall of the clamping ring around its axis;

[0035] A clamping ring piece is placed between the clamping ring and the built-in mounting sleeve to wrap the outer wall of the grouting sleeve;

[0036] The clamping ring is pressed against the adjusting bolt so that it tightens the grouting sleeve.

[0037] By adopting the above technical solution, when the adjusting bolt is tightened, the adjusting bolt abuts against and squeezes the clamping ring, so that the clamping ring tightly hugs the outer wall of the grouting sleeve, thereby fixing the clamping device and the grouting sleeve and preventing relative rotation between the clamping device and the grouting sleeve during rolling operations. At the same time, the gap between the clamping ring and the inner mounting sleeve is designed to be greater than the wall thickness of the grouting sleeve, which can be adjusted to adapt to grouting sleeves of different structural dimensions.

[0038] Preferably, when processing the built-in mounting sleeve, the length of the built-in mounting sleeve is configured to be consistent with the sum of its thickness and the thickness of the piezoelectric functional element and the distance between the two shear grooves.

[0039] By adopting the above technical solution, when processing the shear groove on the outer wall of the grouting sleeve, the deformation at the location of the shear groove will occur inward. The extrusion force generated by the inward extrusion during the processing of the shear groove will make the inner wall of the grouting sleeve and the outer edge of the piezoelectric functional element come into close contact. Then, the adhesive layer on the outer edge of the piezoelectric functional element will be used to make the piezoelectric functional element and the grouting sleeve bond tightly, thereby fixing the piezoelectric functional element on the inner wall of the grouting sleeve.

[0040] Preferably, when fixing the clamping device to the grouting sleeve, the clamping device is connected to both ends of the grouting sleeve.

[0041] By adopting the above technical solution, the clamping stability of the clamping device on the grouting sleeve is ensured. At the same time, piezoelectric functional elements are set at both ends of the grouting sleeve, which helps to improve the detection accuracy of the grouting density test inside the grouting sleeve.

[0042] Secondly, this application provides a clamping device for a grouting sleeve with a built-in piezoelectric functional element, which adopts the following technical solution:

[0043] A clamping device for a grouting sleeve with a built-in piezoelectric functional element includes an internal mounting sleeve for extending into the grouting sleeve, a clamping member fixed at one end of the internal mounting sleeve for clamping the grouting sleeve, and a positioning boss and a mounting boss machined at the end of the internal mounting sleeve away from the clamping member. The mounting boss is used to magnetically engage with the piezoelectric functional element, and the outer edge of the piezoelectric functional element is coated with an adhesive layer.

[0044] By adopting the above technical solution, before installation, the piezoelectric functional element is sleeved and magnetically installed on the mounting boss. Then, the built-in mounting sleeve is inserted into the grouting sleeve, and the outside of the grouting sleeve is fixed with a clamping device. Then, the clamping device of this application is connected to an external rotating device through a device connecting rod, so that the clamping device, the piezoelectric functional element and the grouting sleeve rotate synchronously. While processing the shear groove on the outer wall of the grouting sleeve, the piezoelectric functional element is simultaneously bonded to the inner wall of the grouting sleeve at the corresponding position of the shear groove by using the inward extrusion force during the forming of the shear groove.

[0045] Preferably, the clamping member includes a clamping ring, a clamping ring piece formed in the installation gap between the clamping ring and the built-in mounting sleeve, and an adjusting bolt that passes vertically through the clamping ring and abuts against the clamping ring piece, wherein the clamping ring piece is used to abut tightly against the grouting sleeve.

[0046] By adopting the above technical solution, when the adjusting bolt is turned, the adjusting bolt abuts against and squeezes the clamping ring, so that the clamping ring tightly hugs the outer wall of the grouting sleeve, thereby fixing the clamping device and the grouting sleeve. This prevents the clamping device and the grouting sleeve from rotating relative to each other during the rolling operation, and can also adapt to grouting sleeves of different sizes.

[0047] In summary, this application includes at least one of the following beneficial technical effects:

[0048] 1. This application provides a clamping device that tightly holds the grouting sleeve. The clamping device is connected to an external rotating device. The rotation configuration of the rotating device is consistent with that of the rolling device, so as to drive the grouting sleeve and the rolling device to rotate synchronously. While forming a shear groove on the outside of the grouting sleeve, the shear groove position is used to squeeze inward, so that the grouting sleeve deforms inward and the extrusion force is generated, so that the piezoelectric functional element is bonded to the inner wall of the grouting sleeve without damage.

[0049] 2. By setting up mounting bosses and positioning bosses, and magnetically connecting the piezoelectric functional element to the mounting bosses, it is easy for the mounting bosses and piezoelectric functional elements to fit tightly together. Furthermore, when the piezoelectric functional element is pressed and installed onto the inner wall of the grouting sleeve, it is easy for the positioning bosses to detach from the piezoelectric functional element under the action of external force, thus protecting the piezoelectric functional element.

[0050] 3. A wire groove is provided along the axis of the built-in mounting sleeve to facilitate the insertion of wires into the wire groove and prevent damage to the wires. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the installation of the clamping device and the grouting sleeve.

[0052] Figure 2 yes Figure 1 A cross-sectional structural diagram.

[0053] Figure 3 This is a schematic diagram of the clamping device.

[0054] Figure 4 This is a schematic diagram of the structure of a piezoelectric functional element.

[0055] Figure 5 This is a process diagram of the grouting sleeve in this application.

[0056] Explanation of reference numerals in the attached drawings: 1. Grouting sleeve; 11. Shear groove; 2. Piezoelectric element; 21. Positive conductor; 22. Negative conductor; 23. Adhesive layer; 3. Clamping device; 31. Internal mounting sleeve; 311. Conductor groove; 32. Positioning boss; 33. Mounting boss; 34. First positioning step; 35. Second positioning step; 36. Clamping component; 361. Clamping ring; 3611. Through hole; 362. Installation gap; 363. Clamping ring piece; 364. Adjusting bolt; 4. Equipment connecting rod. Detailed Implementation

[0057] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0058] This application discloses a processing technology for a grouting sleeve 1 with a built-in piezoelectric functional element 2. (Refer to...) Figures 1-5 The processing technology of the grouting sleeve 1 with built-in piezoelectric function element 2 includes the following steps:

[0059] S1: Select the piezoelectric element 2 that matches the inner diameter of the grouting sleeve 1.

[0060] Specifically, based on the inner and outer diameter data of the grouting sleeve 1 provided by the client or obtained through measurement, a piezoelectric functional element 2 with an outer diameter matching the inner diameter of the grouting sleeve 1 is machined, and the outer diameter of the piezoelectric functional element 2 is selected to be smaller than the inner diameter of the grouting sleeve 1.

[0061] A wire is soldered onto the piezoelectric functional element 2 for connection to the signal source and receiver during construction, and for transmitting the vibration wave generated by the piezoelectric functional element 2 to external terminal equipment. During soldering, two wires are soldered onto the piezoelectric functional element 2, serving as the positive wire 21 and the negative wire 22 respectively. The positive wire 21 and the negative wire 22 are soldered on the same side of the piezoelectric functional element 2 and are arranged symmetrically to achieve cyclic transmission of the current signal.

[0062] Furthermore, an epoxy resin isolation layer is applied to both annular surfaces of the piezoelectric functional element 2 to isolate the grouting material during grouting, thereby preventing damage to the piezoelectric functional element 2 and ensuring its normal use.

[0063] S2: Apply adhesive layer 23 to the outside of the piezoelectric functional element 2. This facilitates bonding and fixing with the inner wall of the grouting sleeve 1.

[0064] S3: Machining a clamping device 3 that matches the grouting sleeve 1 and the piezoelectric functional element 2. This includes the following steps:

[0065] S31: A built-in mounting sleeve 31, matching the inner diameter of the grouting sleeve 1, is machined. Specifically, the built-in mounting sleeve 31 is a cylindrical shape that extends into the grouting sleeve 1. The piezoelectric element 2 is inserted into the grouting sleeve 1 using the built-in mounting sleeve 31, which also provides some support to the grouting sleeve 1 and reduces deformation near the shear groove 11 to some extent. When machining the built-in mounting sleeve 31, the distance data between the two shear grooves 11 on the outer wall of the grouting sleeve 1 is first obtained. Then, the length of the built-in mounting sleeve 31 is configured such that the sum of its length and the thickness of the piezoelectric element 2 matches the distance data between the two shear grooves 11. This allows the piezoelectric element 2 to be fixed to the inner wall of the grouting sleeve 1 by the deformation generated when the shear grooves 11 are formed.

[0066] S32: Based on the inner diameter of the piezoelectric functional element 2, a positioning boss 32 and a mounting boss 33 are machined at one end of the built-in mounting sleeve 31.

[0067] A first positioning step 34 for positioning the piezoelectric functional element 2 exists between the positioning boss 32 and the built-in mounting sleeve 31. The outer diameter of the positioning boss 32 is consistent with the inner diameter of the annular piezoelectric functional element 2 to prevent excessive extrusion by the rolling equipment from damaging the piezoelectric functional element 2. The outer diameter of the mounting boss 33 is consistent with the inner diameter of the annular piezoelectric functional element 2, and a second positioning step 35 exists between the mounting boss 33 and the positioning boss 32. The piezoelectric functional element 2 is fitted onto the positioning boss 32 for easy installation and easy removal of the clamping device 3 after integral extrusion molding. The height of the second positioning step 35 is the annular radius of the piezoelectric functional element 2.

[0068] After machining the positioning boss 32, two wire grooves 311 for inserting the positive wire 21 and the negative wire 22 need to be machined on the outer wall of the positioning boss 32 and the inner mounting sleeve 31. The wire grooves 311 are opened along the axis of the inner mounting sleeve 31 and extend to the mounting boss 33. During machining, the depth of the wire grooves 311 should be greater than the outer diameter of the wire. When the piezoelectric functional element 2 is sleeved on the mounting boss 33, the positive wire 21 and the negative wire 22 are inserted into the wire grooves 311 to avoid wear on the wires and ensure the normal use of the piezoelectric functional element 2.

[0069] S33: Machine a clamping member 36 for clamping the grouting sleeve 1 according to the outer diameter of the grouting sleeve 1. This includes the following steps:

[0070] S331: Weld an L-shaped clamping ring 361 to the end of the built-in mounting sleeve 31 away from the positioning step, and make the gap between the clamping ring 361 and the built-in mounting sleeve 31 greater than the wall thickness of the grouting sleeve 1.

[0071] S332: Multiple threaded holes are opened on the side wall of the clamping ring 361 around the axis of the clamping ring 361, and the multiple threaded holes are spaced apart around the axis of the clamping ring 361.

[0072] S333: The clamping ring 361 piece that wraps around the outer wall of the grouting sleeve 1 is placed between the clamping ring 361 and the built-in mounting sleeve 31.

[0073] S4: Install the piezoelectric functional element 2 on the clamping device 3. The piezoelectric functional element 2 is sleeved on the positioning boss 32. To prevent the piezoelectric functional element 2 from slipping off the positioning boss 32 when the grouting sleeve 1 rotates, and to facilitate the separation of the piezoelectric functional element 2 from the positioning boss 32 after it is fixed, the piezoelectric functional element 2 and the positioning boss 32 are connected by magnetic attraction. Specifically, the steps are as follows:

[0074] S41: A metal layer is coated on the inner edge of the piezoelectric functional element 2.

[0075] S42: A magnetic layer is coated on the outer wall of the positioning boss 32.

[0076] S43: The piezoelectric functional element 2 is sleeved and magnetically attached to the mounting boss 33, so that the piezoelectric functional element 2 is attached to the end face of the positioning boss 32.

[0077] After the rolling operation of the grouting sleeve 1 is completed, the piezoelectric functional element 2 and the grouting sleeve 1 form an integral whole, which is conducive to the separation of the piezoelectric functional element 2 from the clamping device 3 under the action of external force without damaging the piezoelectric functional element 2.

[0078] S5: Insert the clamping device 3 carrying the piezoelectric functional element 2 into the grouting sleeve 1.

[0079] S6: Fix the clamping device 3 to the grouting sleeve 1.

[0080] Specifically, the clamping device 36 is used to clamp and fix the grouting sleeve 1. During fixing, the built-in mounting sleeve 31 carrying the piezoelectric element 2 extends into the grouting sleeve 1. During the extension process, the side wall of the grouting sleeve 1 gradually extends into the mounting gap 362 between the clamping ring 361 and the built-in mounting sleeve 31. Then, adjusting bolts 364 are inserted into each threaded hole and tightened. The adjusting bolts 364 abut against and squeeze the clamping ring 361, so that the clamping ring 361 tightly hugs the outer wall of the grouting sleeve 1, thereby fixing the clamping device 3 to the grouting sleeve 1 and preventing relative rotation between the clamping device 3 and the grouting sleeve 1 during rolling operations. At the same time, the gap between the clamping ring 361 and the built-in mounting sleeve 31 is designed to be greater than the wall thickness of the grouting sleeve 1, and can also be adjusted to accommodate the fixing of grouting sleeves 1 with different structural dimensions.

[0081] S7: Connect the clamping device 3 to the external rotating device and configure the rotating device to rotate synchronously with the rolling device. Connect the external rotating device via the device connecting rod 4 fixedly connected to the bottom surface of the clamping ring 361.

[0082] S8: Start the rotating and rolling equipment. As the shear groove 11 is formed, the deformation of the grouting sleeve 1 will squeeze and bond the piezoelectric functional element 2 to the inner wall of the grouting sleeve 1.

[0083] This application also discloses a clamping device for a grouting sleeve with a built-in piezoelectric functional element. (Refer to...) Figures 1-4 The clamping device for the grouting sleeve with built-in piezoelectric functional element includes an internal mounting sleeve 31 for extending into the grouting sleeve 1, a clamping member 36 fixed to one end of the internal mounting sleeve 31 for clamping the grouting sleeve 1, and a positioning boss 32 and a mounting boss 33 integrally formed on the end of the internal mounting sleeve 31 away from the clamping member 36. The mounting boss 33 is used for magnetic attraction with the piezoelectric functional element 2, and the positioning boss 32 is used for positioning the installation of the piezoelectric functional element 2. An adhesive layer 23 is applied to the outer edge of the piezoelectric functional element 2. The clamping device 3 of this application is used to connect to an external rotating device via a device connecting rod 4, and the external rotating device is configured to rotate synchronously with the rolling device, so that while a shear groove 11 is formed on the outside of the grouting sleeve 1, the shear groove 11 is used to squeeze inward, so that the grouting sleeve 1 deforms inward and the piezoelectric functional element 2 is bonded to the inner wall of the grouting sleeve 1 without damage. Two wire grooves 311 are provided on the positioning boss 32 and the built-in mounting sleeve 31 for placing the positive wire 21 and the negative wire 22 of the piezoelectric functional element 2. A through hole 3611 communicating with the wire grooves 311 is also provided on the bottom surface of the clamping ring 361 to prevent the positive wire 21 and the negative wire 22 from being worn during the integral rolling molding, thus ensuring the normal use of the piezoelectric functional element 2.

[0084] The clamping member 36 includes a clamping ring 361, a clamping ring 361 piece formed in the mounting gap 362 between the clamping ring 361 and the built-in mounting sleeve 31, and an adjusting bolt 364 that passes vertically through the clamping ring 361 and abuts against the clamping ring 361 piece. When fixing, the grouting sleeve 1 is inserted into the mounting gap 362, and the adjusting bolt 364 is tightened to ensure a tight fit between the clamping ring 361 piece and the grouting sleeve 1.

[0085] The implementation principle of the clamping device for a grouting sleeve with a built-in piezoelectric functional element in this application embodiment is as follows: During installation, the annular piezoelectric functional element 2 is sleeved on the mounting boss 33, so that the piezoelectric functional element 2 and the mounting boss 33 achieve magnetic adsorption, ensuring that the piezoelectric functional element 2 and the mounting boss 33 are tightly fitted. The positive electrode wire 21 and the negative electrode wire 22 are placed in the wire groove 311. Then, both built-in mounting sleeves 31 are inserted into the grouting sleeve 1, so that the side wall of the grouting sleeve 1 extends into the installation gap 362. The adjusting bolt 364 is turned downwards, so that the adjusting ring clamps the grouting sleeve 1. Then, the rolling equipment and the rotating equipment connected to the connecting rod 4 are started simultaneously, so that the clamping device 3, the piezoelectric functional element 2, the grouting sleeve 1, and the rolling equipment of this application rotate synchronously. This allows the shear groove 11 to be machined on the outer wall of the grouting sleeve 1, while the shear groove 11 is formed, the inward pressing force during the forming of the shear groove 11 simultaneously bonds the piezoelectric functional element 2 to the inner wall of the grouting sleeve 1 at the corresponding position of the shear groove 11. After the piezoelectric functional element 2 is fixed, the adjusting bolt 364 is loosened to facilitate the separation of the internal mounting sleeve 31 from the piezoelectric functional element 2 under external force.

[0086] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A processing technology for a grouting sleeve with built-in piezoelectric functional elements, characterized in that: Includes the following steps: Select a piezoelectric element (2) that matches the inner diameter of the grouting sleeve (1); An adhesive layer (23) is applied to the outside of the piezoelectric functional element (2); Process a clamping device (3) that matches the grouting sleeve (1) and the piezoelectric functional element (2); The piezoelectric functional element (2) is mounted on the clamping device (3); The clamping device (3) carrying the piezoelectric functional element (2) is inserted into the grouting sleeve (1); Fixing the clamping device (3) to the grouting sleeve (1); Connect the clamping device (3) to an external rotating device and configure the rotating device to rotate synchronously with the rolling device; Start the rotating and rolling equipment, and when the shear groove (11) is formed, the deformation of the grouting sleeve (1) will cause the piezoelectric functional element (2) to be squeezed and bonded to the inner wall of the grouting sleeve (1); The process of machining a clamping device (3) that matches the grouting sleeve (1) and the piezoelectric functional element (2) includes the following steps: An internal mounting sleeve (31) with the same inner diameter as the grouting sleeve (1) is machined according to the inner diameter of the grouting sleeve (1); A positioning boss (32) with an outer diameter matching that of the piezoelectric functional element (2) is machined at one end of the built-in mounting sleeve (31); A mounting boss (33) with an outer diameter matching the inner diameter of the piezoelectric functional element (2) is machined on the outer end face of the positioning boss (32); A clamping member (36) for clamping the grouting sleeve (1) is machined according to the outer diameter of the grouting sleeve (1); There is a first positioning step (34) between the positioning boss (32) and its corresponding built-in mounting sleeve (31) for positioning the piezoelectric functional element (2). There is a second positioning step (35) between the mounting boss (33) and the positioning boss (32); Mounting the piezoelectric functional element (2) on the clamping device (3) includes the following steps: coating the inner edge of the piezoelectric functional element (2) with a metal layer; A magnetic layer is coated on the outer wall of the mounting boss (33); The piezoelectric functional element (2) is sleeved and magnetically attached to the mounting boss (33); When processing the built-in mounting sleeve (31), the length of the built-in mounting sleeve (31) is configured such that the sum of its thickness and that of the piezoelectric functional element (2) is consistent with the distance between the two shear grooves (11).

2. The grouting sleeve processing technology with built-in piezoelectric functional element according to claim 1, characterized in that: An epoxy resin isolation layer is applied to the annular surfaces on both sides of the piezoelectric functional element (2) and at the solder joints of the wires.

3. The grouting sleeve processing technology with built-in piezoelectric functional element according to claim 1, characterized in that: The process of machining a clamping device (3) that matches the grouting sleeve (1) and the piezoelectric functional element (2) further includes the following steps: opening a wire groove (311) on the side wall of the built-in mounting sleeve (31) for inserting the wire of the piezoelectric functional element (2), extending the wire groove (311) to the mounting boss (33), and making the depth of the wire groove (311) greater than the outer diameter of the wire.

4. The grouting sleeve processing technology with built-in piezoelectric functional element according to claim 1, characterized in that: The machining of a clamping member (36) for clamping the grouting sleeve (1) according to the outer diameter of the grouting sleeve (1) includes the following steps: An L-shaped clamping ring (361) is welded and fixed at one end of the built-in mounting sleeve (31) away from the first positioning step (34) and the second positioning step (35). The gap between the clamping ring (361) and the built-in mounting sleeve (31) is greater than the wall thickness of the grouting sleeve (1). Multiple threaded holes are formed on the side wall of the clamping ring (361) around the axis of the clamping ring (361); The clamping ring (361) piece, which wraps around the outer wall of the grouting sleeve (1), is placed between the clamping ring (361) and the built-in mounting sleeve (31); The adjusting bolt (364) is used to abut against the clamping ring (361) so that the clamping ring (361) tightens the grouting sleeve (1).

5. The grouting sleeve processing technology with built-in piezoelectric functional element according to claim 1, characterized in that: When fixing the clamping device (3) to the grouting sleeve (1), the clamping device (3) is connected to both ends of the grouting sleeve (1).

6. The grouting sleeve processing technology with built-in piezoelectric functional element according to any one of claims 1-5, characterized in that: The clamping device includes an internal mounting sleeve (31) for extending into the grouting sleeve (1), a clamping member (36) fixed at one end of the internal mounting sleeve (31) for clamping the grouting sleeve (1), and a mounting boss (33) and a positioning boss (32) formed at the end of the internal mounting sleeve (31) away from the clamping member (36). The mounting boss (33) is used to magnetically engage with the piezoelectric functional element (2). The outer edge of the piezoelectric functional element (2) is coated with an adhesive layer (23).

7. The grouting sleeve processing technology with built-in piezoelectric functional element according to any one of claims 1-5, characterized in that: The clamping member (36) includes a clamping ring (361), a clamping ring (361) piece with an installation gap (362) formed between the clamping ring (361) and the built-in mounting sleeve (31), and an adjusting bolt (364) that passes vertically through the clamping ring (361) and abuts against the clamping ring (361) piece. The clamping ring (361) piece is used to abut tightly against the grouting sleeve (1).

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