A copper bush mounting device

Abstract

The utility model relates to mechanical assembly technical field especially relates to a copper bush mounting device to solve the problem of the prior art due to the absence of professional installation dress full -time and influence assembly quality. The installation main part is used for bearing and positioning copper bush to realize accurate installation, one end of installation main part is equipped with handle convenient for holding operation, the other end of installation main part is along the axial interval of installation main part and is equipped with a plurality of boss for positioning copper bush, and the handle is equipped with transition section between the first boss close to handle, the radial dimension of transition section is greater than the radial dimension of the boss close to handle, and is less than the radial dimension of handle, to form the stepped structure and avoid operation interference. The edge of each boss close to the end of installation main part is equipped with conical chamfer, is used for guiding copper bush to be smoothly sleeved along the axial direction. The copper bush mounting device provided by the utility model is used to satisfy the installation of different specifications copper bush.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly technology, and in particular to a copper sleeve installation device. Background Technology

[0002] In traditional maintenance work, installing shaft bushings often lacks specialized tools, and operators frequently resort to tapping with a flat chisel. This method is not only time-consuming and labor-intensive, but also prone to uneven force, leading to improper installation or deformation of the bushing, and may even damage the bushing surface, affecting its service life and assembly accuracy. Furthermore, tapping installation is difficult to standardize, resulting in inconsistent assembly quality.

[0003] In existing technologies, the extrusion method is used to install parts requiring high precision or where hammering is not permissible. However, the extrusion method demands high levels of equipment and operational skills, and lacks flexibility, making it difficult to adapt to the installation needs of copper bushings of different sizes. In particular, during the installation process, if the copper bushing is not vertically aligned with the mounting hole, it is highly susceptible to deformation due to force deviation, affecting the assembly quality.

[0004] Therefore, how to solve the problem of assembly quality being affected by the lack of professional installers in existing technologies is one of the important issues that urgently needs to be addressed in this field. Utility Model Content

[0005] In view of this, the present invention provides a copper sleeve installation device to solve the problem in the prior art where the lack of professional installation personnel affects the assembly quality.

[0006] According to one aspect of the present invention, a copper sleeve installation device is provided. The copper sleeve installation device includes an installation body for supporting and positioning the copper sleeve to achieve precise installation. One end of the installation body is provided with a handle for easy gripping and operation. The other end of the installation body is provided with a plurality of bosses for positioning the copper sleeve at intervals along the axial direction of the installation body. A transition section is provided between the handle and the first boss near the handle. The radial dimension of the transition section is larger than the radial dimension of the boss near the handle and smaller than the radial dimension of the handle, so as to form a stepped structure to avoid operational interference.

[0007] Each boss has a conical chamfer on the edge near the end of the mounting body to guide the copper sleeve to be smoothly fitted along the axial direction; the outer surface of each boss is precision machined to form a preset surface roughness, and the outer diameter of each boss is 0.10mm-0.20mm smaller than the inner diameter of the copper sleeve to be installed, so as to ensure the clearance fit accuracy after the copper sleeve is fitted.

[0008] According to one aspect of the present invention, in the copper sleeve mounting device, each boss is coaxially distributed along the axial direction of the mounting body, and the radial dimension of each boss gradually decreases in a stepped manner along the direction away from the handle, so that each boss can be adapted to copper sleeves of different sizes and specifications.

[0009] According to one aspect of the present invention, the copper sleeve mounting device has an anti-slip texture on the outer surface of the handle, which is a cross-shaped mesh pattern or an axial straight line.

[0010] According to one aspect of the present invention, the copper sleeve mounting device has a chamfer of 30°-60° at the end of each boss, and the surface of each chamfer is a smooth transition surface with a roughness of Ra0.8-Ra1.6, so as to avoid edge damage when the copper sleeve is inserted.

[0011] According to one aspect of the present invention, a copper sleeve mounting device is provided between adjacent bosses, and the annular marking groove is used to distinguish bosses of different diameters.

[0012] According to one aspect of the present invention, in the copper sleeve mounting device, the outer surface of each boss is a preset surface with a roughness of Ra1.6-Ra3.2, which is used to reduce the frictional resistance between the copper sleeve and the boss and to prevent scratches from being generated on the inner wall of the copper sleeve due to the rough surface.

[0013] According to one aspect of the present invention, a copper sleeve installation device is provided on the transition section, and the axial scale line is used to indicate the depth to which the hammering installation device enters the copper sleeve.

[0014] According to one aspect of the present invention, the copper sleeve mounting device is further provided with a calibration ring, the radial dimension of which is adapted to the radial dimension of each boss, and the calibration ring is used to periodically check the parameters of the boss.

[0015] According to one aspect of the present invention, the copper sleeve mounting device has a cylindrical handle, and the handle and the adjacent boss are connected by a circular arc surface transition.

[0016] According to one aspect of the present invention, the copper sleeve mounting device has an axial dimension greater than that of the copper sleeve to be installed, and the end of each boss away from the handle is a conical guide head with a taper of 1:10 to 1:20.

[0017] The above-mentioned technical solutions adopted in this utility model embodiment can achieve the following beneficial effects: In the above-mentioned copper sleeve installation device, multiple bosses spaced axially at the other end of the installation body directly serve as the bearing and positioning reference for the copper sleeve. The axial position and radial dimension of each boss are designed to ensure that the axial spacing and radial concentricity of the copper sleeve after it is fitted in meet the installation requirements, avoiding installation deviations caused by positioning ambiguity. The outer diameter of the boss is 0.10mm-0.20mm smaller than the inner diameter of the copper sleeve to be installed, forming a reasonable clearance fit. This clearance ensures that the copper sleeve can be easily fitted in, but will not cause the copper sleeve to wobble on the boss due to excessive clearance, ensuring that the axis of the copper sleeve is consistent with the axis of the boss during the fitting process, laying a precise positioning foundation for subsequent assembly. Based on this, the handle at one end of the installation body is easy for the operator to hold, which can stably control the posture and force of the device, reducing operational errors caused by hand slippage or uneven force during installation, and is especially suitable for continuous operation in batch installation scenarios. The transition section between the handle and the first boss adopts a stepped structure with a radial dimension between that of the handle and the first boss. This design provides ample space for hand operation, preventing collisions or friction between the hand and the protrusions or copper sleeves near the handle when gripping it, ensuring unobstructed operation and improving installation smoothness. Furthermore, each protrusion features a conical chamfer on its edge near the mounting body, transforming the rigid contact of the copper sleeve during insertion into a gradual guide. When the edge of the copper sleeve contacts the chamfer, it naturally slides along the chamfered surface towards the outer surface of the protrusion, reducing alignment difficulty and jamming during initial insertion, especially suitable for scenarios with small copper sleeve inner diameters and high alignment requirements. The outer surface of the protrusion is precision-machined to achieve a preset surface roughness, reducing the coefficient of friction between the inner wall of the copper sleeve and the protrusion surface. The clearance fit design further prevents jamming caused by surface roughness during insertion, allowing the copper sleeve to slide smoothly into place axially, reducing installation time.

[0018] Furthermore, the stepped transition section and chamfered design reduce collisions or friction between the copper sleeve installation device and the workpiece or hands during operation, lowering the probability of wear on the boss edges and surfaces. The precision-machined boss structure boasts stable strength and can withstand repeated use of copper sleeve insertion and positioning over long periods, extending the device's lifespan. Multiple spaced bosses can simultaneously support multiple copper sleeves, suitable for scenarios requiring batch installation of copper sleeves of the same specification, reducing repetitive operations during single installations and improving batch production efficiency. It is compatible with the installation of copper sleeves of the same specification series, enhancing the device's versatility. It effectively solves the problem of assembly quality being affected by the lack of specialized installation personnel in existing technologies. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the copper sleeve mounting device provided as an example of the present utility model;

[0021] Figure 2 This is a schematic diagram of a copper sleeve structure provided as an example of this utility model.

[0022] Figure label:

[0023] 101 - Mounting body, 102 - Boss, 103 - Handle. Detailed Implementation

[0024] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0025] It should be understood that the steps described in the method embodiments of this utility model may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this utility model is not limited in this respect.

[0026] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0027] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0028] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0029] In traditional maintenance work, installing shaft bushings often lacks specialized tools, and operators frequently resort to tapping with a flat chisel. This method is not only time-consuming and labor-intensive, but also prone to uneven force, leading to improper installation or deformation of the bushing, and may even damage the bushing surface, affecting its service life and assembly accuracy. Furthermore, tapping installation is difficult to standardize, resulting in inconsistent assembly quality.

[0030] In existing technologies, the extrusion method is used to install parts requiring high precision or where hammering is not permissible. However, the extrusion method demands high levels of equipment and operational skills, and lacks flexibility, making it difficult to adapt to the installation needs of copper bushings of different sizes. In particular, during the installation process, if the copper bushing is not vertically aligned with the mounting hole, it is highly susceptible to deformation due to force deviation, affecting the assembly quality.

[0031] To address the aforementioned problems, an exemplary embodiment of this utility model provides a copper sleeve installation device to solve the problem in the prior art where the lack of professional installation personnel affects assembly quality.

[0032] A copper sleeve installation device according to an embodiment of the present utility model will now be described in detail with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the copper sleeve installation device provided as an example of the present utility model. Figure 2 This is a schematic diagram of the copper sleeve structure provided as an example of the present utility model, such as... Figure 1 - Figure 2 As shown, the mounting body 101 is used to support and position the copper sleeve for precise installation. One end of the mounting body 101 has a handle 103 for easy gripping and operation. The other end of the mounting body 101 has multiple bosses 102 spaced along its axial direction for positioning the copper sleeve. A transition section is provided between the handle 103 and the first boss 102 near the handle 103. The radial dimension of the transition section is larger than the radial dimension of the boss 102 near the handle 103, but smaller than the radial dimension of the handle 103, forming a stepped structure to avoid operational interference. Each boss 102 has a conical chamfered edge near the end of the mounting body 101 to guide the copper sleeve to smoothly fit along the axial direction. The outer surface of each boss 102 is precision machined to form a preset surface roughness, and the outer diameter of each boss 102 is 0.10mm-0.20mm smaller than the inner diameter of the copper sleeve to be installed, ensuring the clearance fit accuracy after the copper sleeve is fitted.

[0034] In practical applications, such as Figure 1As shown, multiple bosses 102 spaced axially at one end of the mounting body 101 directly serve as the bearing and positioning reference for the copper sleeve. The axial position and radial dimension of each boss 102 are designed to ensure that the axial spacing and radial concentricity of the copper sleeve meet the installation requirements after it is fitted in, avoiding installation deviations caused by positioning ambiguity. The outer diameter of the boss 102 is 0.10mm-0.20mm smaller than the inner diameter of the copper sleeve to be installed, forming a reasonable clearance fit. This clearance ensures that the copper sleeve can be easily fitted in without causing the copper sleeve to wobble on the boss 102 due to excessive clearance, ensuring that the axis of the copper sleeve is aligned with the axis of the boss 102 during the fitting process, laying a precise positioning foundation for subsequent assembly. Based on this, the handle 103 at one end of the mounting body 101 is easy for the operator to hold, allowing for stable control of the device's posture and force, reducing operational errors caused by hand slippage or uneven force during installation, and is especially suitable for continuous operation in batch installation scenarios. The transition section between the handle 103 and the first boss 102 adopts a stepped structure with a radial dimension between that of the handle 103 and the first boss 102. This design provides ample space for hand operation, avoiding collisions or friction between the hand and the boss 102 or the copper sleeve near the handle 103 when holding the handle 103, ensuring unobstructed operation and improving installation smoothness. Furthermore, each boss 102 has a conical chamfer on its edge near the end of the mounting body 101, which transforms the rigid contact when the copper sleeve is inserted into a gradual guide. When the edge of the copper sleeve contacts the chamfer, it naturally slides along the chamfer slope towards the outer surface of the boss 102, reducing the difficulty of alignment and jamming during initial insertion, especially suitable for scenarios with small copper sleeve inner diameters and high requirements for insertion alignment. The outer surface of the boss 102 is precision-machined to form a preset surface roughness, which reduces the coefficient of friction between the inner wall of the copper sleeve and the surface of the boss 102. The clearance fit design further avoids jamming caused by surface roughness during the insertion process, allowing the copper sleeve to slide smoothly into place along the axial direction and reducing installation time.

[0035] Furthermore, the stepped transition section and chamfered design reduce collisions or friction between the copper sleeve installation device and the workpiece or hands during operation, lowering the probability of wear on the edges and surfaces of the boss 102. The precision-machined boss 102 has stable structural strength and can withstand repeated use of copper sleeve insertion and positioning for a long time, extending the service life of the device. Multiple spaced bosses 102 can simultaneously support multiple copper sleeves, suitable for scenarios requiring batch installation of copper sleeves of the same specification, reducing repetitive operations in a single installation and improving batch production efficiency. It is compatible with the installation of copper sleeves of the same specification series, enhancing the versatility of the device. It effectively solves the problem of assembly quality being affected by the lack of professional installation personnel in existing technologies.

[0036] For example, such as Figure 1As shown, each boss 102 is coaxially distributed along the axial direction of the mounting body 101, and the radial dimension of each boss 102 gradually decreases in a stepped manner along the direction away from the handle 103, so that each boss 102 can be adapted to copper sleeves of different sizes and specifications.

[0037] In practical applications, such as Figure 1 As shown, the operator selects the corresponding boss 102 on the device according to the inner diameter specification of the copper sleeve to be installed. Since the radial dimension of the boss 102 decreases in a stepped manner away from the handle 103, a large inner diameter copper sleeve corresponds to a large-sized boss 102 closer to the handle 103, and a small inner diameter copper sleeve corresponds to a small-sized boss 102 farther from the handle 103. This size gradient allows for intuitive specification matching. The selected copper sleeve is aligned with the end of the target boss 102, and the edge of the copper sleeve first contacts the conical chamfer of the boss 102. Guided by the chamfer, the copper sleeve gradually slides along the inclined surface towards the outer surface of the boss 102. Simultaneously, because the outer surface of the boss 102 is precision-machined, and the outer diameter of the boss 102 is 0.10mm-0.20mm smaller than the inner diameter of the copper sleeve, the copper sleeve can smoothly fit into the boss 102 axially and naturally enter position without jamming or forced compression. After the copper sleeve is fitted onto the boss 102, due to the precise clearance fit and coaxial design between the boss 102 and the copper sleeve, the axis of the copper sleeve is aligned with the axis of the boss 102, achieving precise positioning. At this point, the operator holds the handle 103, aligns the device carrying the copper sleeve with the part to be assembled, and uses the handle 103 to stably control the device's posture, precisely pressing or assembling the copper sleeve to the target position, completing the installation. If different specifications of copper sleeves need to be installed, there is no need to change the device; simply repeat the above steps: select the adjacent boss 102 according to the inner diameter of the new copper sleeve, directly fit it in, and position it, achieving continuous assembly of multiple specifications with one device.

[0038] As can be seen from the above implementation process, if Figure 1As shown, traditional copper sleeve installation tools are often only compatible with a single specification of copper sleeve, while this device, through its stepped-reducing boss 102 design, can simultaneously support copper sleeves with multiple inner diameter specifications. This eliminates the need for separate tool design for different specifications of copper sleeves, reducing equipment procurement costs and storage space, making it particularly suitable for multi-variety, small-batch production scenarios. The coaxial distribution of the bosses 102 ensures that the positioning axis of all specifications of copper sleeves is consistent. Regardless of which boss 102 is used, the assembly datum of the copper sleeve coincides with the axis of the device body, avoiding positioning datum offset due to specification changes and ensuring coaxiality accuracy after assembling different specifications of copper sleeves. Furthermore, the radial dimension of each boss 102 is designed for a specific copper sleeve specification, achieving a precise clearance fit for each boss 102 and specification. For large-sized copper sleeves, the large boss 102 provides sufficient support area, preventing wobbling caused by excessive clearance. For small-sized copper sleeves, the small boss 102 ensures positioning stability through a tight fit, fundamentally solving the installation deviation problem caused by uneven clearance of general-purpose tools. The coaxial distribution design ensures that the axis of all bosses 102 coincides with the axis of the mounting body 101. After the copper sleeve is fitted, its axis aligns with the axis of the device, providing a unified benchmark for subsequent assembly and reducing cumulative errors caused by switching between multiple specifications. Secondly, operators can quickly identify the suitable copper sleeve through the axial position of the bosses 102, eliminating the need for repeated measurements or verification of markings, reducing the probability of incorrect specification selection, and making it particularly suitable for rapid switching in batch assembly. The same device can handle the bearing and positioning of copper sleeves of multiple specifications, shortening auxiliary time and increasing the assembly output per unit time.

[0039] For example, such as Figure 1 As shown, the outer surface of the handle 103 is provided with an anti-slip texture, which is either a cross-hatched mesh or axial straight lines. The anti-slip texture significantly increases the static friction between the hand and the handle 103 by increasing the roughness of the outer surface. When the operator holds the handle 103, the palm fits tightly against the textured surface, and the uneven structure of the texture can grip the skin of the palm or the surface of the glove, effectively resisting axial or radial forces during assembly. During the installation of the copper sleeve, the operator needs to apply pressure through the handle 103 to press the copper sleeve into the target position, or adjust the device's posture in a confined space. If the handle 103 is smooth, it is easy to slip due to sweaty or oily hands, or uneven force. The cross-hatched mesh or axial straight lines can specifically counteract the risk of slippage, ensuring effective force transmission.

[0040] In addition, the anti-slip texture reduces the relative displacement of the handle 103 in the hand. After the copper sleeve is positioned by the boss 102, the operator needs to keep the axis of the device aligned with the axis of the part to be assembled. If the handle 103 slips, it will cause the device to wobble slightly, affecting the coaxiality assembly accuracy of the copper sleeve.

[0041] For example, such as Figure 1As shown, the end chamfer of each boss 102 is 30°-60°, and the surface of each chamfer is a smooth transition surface with a roughness of Ra0.8-Ra1.6 to avoid edge damage when the copper sleeve is inserted.

[0042] In practical applications, such as Figure 1 As shown, each boss 102 has a chamfered end of α, which is a conical chamfer of 30°–60° forming a flared transition structure. When the copper sleeve is initially fitted into the boss 102, the inclined surface of the chamfer can automatically correct the relative position between the copper sleeve and the boss 102. Even if there is a slight deviation between the axis of the copper sleeve and the axis of the boss 102, the chamfer can guide the copper sleeve into the correct coaxial direction through the inclined surface contact, avoiding the edge of the copper sleeve directly hitting the right-angle edge of the end of the boss 102, and reducing jamming during fitting. In addition, the smooth transition surface Ra0.8–Ra1.6 of the chamfer reduces the coefficient of friction between the inner wall of the copper sleeve and the chamfer of the boss 102. During the fitting process, the inner wall contacts the chamfer first, and the smooth surface minimizes the contact friction, allowing the copper sleeve to slide smoothly along the chamfered inclined surface to the positioning section of the boss 102, improving the fitting efficiency.

[0043] Furthermore, the chamfer's guiding function reduces the alignment adjustment time for operators. In batch assembly, operators no longer need to repeatedly calibrate the coaxiality of the copper sleeve and boss 102; the chamfer automatically guides the alignment, allowing the copper sleeve to quickly and stably fit against the outer surface of the boss 102, shortening the preparation time for each assembly. The smooth insertion process reduces operational resistance and the amount of force required from the operator's hands. If the copper sleeve gets stuck during insertion due to the lack of a chamfer or a rough surface, the operator needs to apply additional force to make the insertion easier and smoother, improving operational convenience.

[0044] For example, annular marking grooves are provided between adjacent bosses to distinguish bosses of different diameters. Since the bosses decrease in size in a stepped manner along the axial direction, relying solely on diameter differences may not be visually distinguishable. The annular marking grooves, acting as visual dividing lines, directly divide adjacent bosses into independent areas. In batch assembly or complex working conditions, operators need to quickly select bosses that match the inner diameter of the copper sleeve. The annular marking grooves, through visual comparison, make the boundaries of bosses of different specifications clear at a glance, avoiding the copper sleeve being fitted too loosely or too tightly due to incorrect boss selection, thus reducing assembly errors from the source. When the copper sleeve is fitted along the boss, if the fit is too shallow, it may lead to unstable positioning. The position of the marking grooves indicates to the operator that after the end of the copper sleeve crosses the marking groove, it enters the effective positioning area of ​​the corresponding boss specification, ensuring that the copper sleeve is fully fitted and conforms to the outer surface of the boss. The tactile feedback of the grooves can assist in blind operation or low-light scenarios. In confined spaces or dimly lit workshops, operators can use their fingers to touch and feel the uneven structure of the marking groove to quickly determine the specifications of the boss being fitted, reducing operational errors caused by reliance on visual perception.

[0045] For example, the outer surface of each boss is a preset surface with a roughness of Ra1.6 to Ra3.2, which is used to reduce the frictional resistance between the copper sleeve and the boss and to prevent scratches on the inner wall of the copper sleeve due to the rough surface.

[0046] In practical applications, Ra1.6–Ra3.2 falls within the medium precision roughness range. If the surface is too rough, the microscopic protrusions on the outer surface of the boss will mechanically engage with the inner wall of the copper sleeve, increasing sliding friction during insertion. This makes it difficult for the copper sleeve to slide smoothly along the axial direction, and may even require excessive external force, increasing operational difficulty. If the surface is too smooth, although the coefficient of friction is low, the excessive smoothness may reduce the positioning stability of the copper sleeve after insertion. This roughness range reduces the microscopic contact resistance between the inner wall of the copper sleeve and the outer surface of the boss, allowing the copper sleeve to be smoothly inserted axially under its own weight or slight external force, avoiding jamming or misalignment due to excessive friction, and ensuring a smooth installation process. Copper sleeves are typically precision parts, and the inner wall needs to maintain a high surface quality to ensure the subsequent fit accuracy and service life with shaft-like parts. If the surface roughness of the boss is poor, the sharp protrusions on the rough surface will scratch the inner wall of the copper sleeve during insertion, causing scratches, metal shavings residue, and even localized deformation, directly affecting the performance of the copper sleeve. The surface of Ra1.6–Ra3.2 is precision-machined, with a smooth micro-profile and no sharp protrusions, effectively preventing scratch damage. At the same time, the smooth surface reduces the generation of metal debris, lowering the risk of impurities embedding into the inner wall of the copper bushing and ensuring its original precision.

[0047] For example, the transition section is equipped with axial graduation lines to indicate the depth to which the hammering installation device penetrates the copper sleeve. These axial graduation lines, with their clear numerical markings, visually reflect the depth of penetration. During the assembly of the copper sleeve and the substrate, the installation depth of the copper sleeve often has strict requirements. Insufficient depth can lead to unstable positioning, while excessive depth may compress the internal structure or exceed the design limits. Operators can observe the relative position of the graduation lines and the end face of the copper sleeve to judge in real time whether the installation depth meets the drawing requirements, avoiding depth deviations caused by relying on experience-based hammering and ensuring consistency in batch assembly. Without graduation lines, operators might need to pause hammering multiple times to measure the depth with calipers or disassemble for inspection, repeatedly adjusting the hammering force and number of strikes. Graduation lines provide real-time feedback on depth changes, allowing operators to control the hammering intensity based on the remaining depth requirements, reducing the time cost of a single installation. For inexperienced operators, the graduation lines provide clear operational guidance, eliminating the need to memorize complex depth parameters or rely on feel; standard installation can be completed simply by following the graduations, lowering the training threshold and improving the overall operational efficiency of the team.

[0048] For example, the copper sleeve mounting device also includes a calibration ring. The radial dimension of the calibration ring is matched to the radial dimension of each boss. The calibration ring is used to periodically verify the parameters of the bosses. The radial dimension of the calibration ring is precision-machined to strictly match the design outer diameter of the corresponding boss. By periodically fitting the calibration ring onto the boss, it is possible to quickly detect whether the boss has experienced wear, deformation, or dimensional deviation due to long-term use. If the outer diameter of the boss decreases due to wear, it will result in an excessive gap after the copper sleeve is fitted, leading to unstable positioning. If a local protrusion is caused by an impact, it may cause the copper sleeve to jam or be scratched. Periodic verification of the calibration ring can capture minute dimensional changes of the boss, rather than waiting until the device completely fails before replacement. Operators can judge the degree of wear of the boss based on the calibration results and take timely repair measures to prevent small wear from developing into major failures and extend the overall service life of the device. The calibration ring provides a unified benchmark for boss parameter verification. Regardless of changes in operators or verification time, the same set of calibration rings is used to judge whether the boss is qualified, avoiding judgment errors caused by differences in manual measurement methods.

[0049] For example, the handle has a cylindrical structure, and the handle and adjacent bosses are connected by a rounded surface. When the human hand naturally grips the handle, the curvature formed by the fingers and palm is more suitable for the cylindrical surface. Compared with square or polygonal handles, the cylindrical structure allows for a more even distribution of hand pressure, avoiding pressure pain caused by sharp corners on the palm. The cylindrical handle can enhance friction through surface treatments such as knurling and frosting. Combined with the natural curvature of the hand, the operator can more stably control the direction of the device, avoiding force deviations or operational errors caused by handle slippage. The rounded surface transforms the rigid transition between the handle and the bosses into a smooth transition, allowing external forces to be evenly transmitted to the entire structure along the rounded surface, dispersing stress peaks, improving the fatigue strength and service life of the connection parts, and avoiding downtime for maintenance due to damage to weak points in the structure.

[0050] For example, the axial dimension of each boss is larger than the axial dimension of the copper sleeve to be installed, and the end of each boss away from the handle is a conical guide head with a taper of 1:10–1:20. When installing the copper sleeve, it must be inserted from the end of the boss. If the end is a right angle or a plane, the inner wall of the copper sleeve is prone to rigid contact with the edge of the boss, leading to jamming or scratches on the inner wall. The conical guide head, through a gradual transition from the tip to the boss diameter, allows the inner wall of the copper sleeve to gradually conform to the outer surface of the boss along the conical surface, significantly reducing initial resistance. A taper of 1:10–1:20 is considered a gentle taper. If the taper is too large, the guide section is short and the inclination angle is large, and the copper sleeve is prone to misalignment due to gravity or force deviation, leading to localized compression deformation. If the taper is too small, the guide section is too long, which may increase ineffective stroke. A taper of 1:10–1:20 strikes a balance between guiding efficiency and stability, ensuring rapid alignment while avoiding the risk of misalignment.

[0051] In addition, the axial dimension of the boss is larger than that of the copper sleeve, meaning that after the copper sleeve is fitted, the mating section between its inner wall and the outer surface of the boss can completely cover the full length of the copper sleeve. If the boss length is insufficient, the end of the copper sleeve will extend beyond the boss after being fitted, causing the copper sleeve to be prone to bending deformation due to uneven stress during installation. It is crucial to ensure that the copper sleeve remains axially perpendicular throughout the installation process to avoid deformation. Fine-tuning of the copper sleeve position may be necessary during installation to prevent it from exceeding the effective mating section of the boss due to over-fitting. This ensures that the copper sleeve in the final assembly position still completely fits the straight section of the boss, guaranteeing a uniform mating clearance.

[0052] The above description is merely an illustration of some embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features of this utility model that have similar functions.

[0053] While specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A copper sleeve mounting device, characterized in that, The copper sleeve installation device includes an installation body for supporting and positioning the copper sleeve to achieve precise installation. One end of the installation body is provided with a handle for easy gripping and operation. The other end of the installation body is provided with a plurality of bosses for positioning the copper sleeve at intervals along the axial direction of the installation body. A transition section is provided between the handle and the first boss near the handle. The radial dimension of the transition section is larger than the radial dimension of the boss near the handle and smaller than the radial dimension of the handle, so as to form a stepped structure to avoid operational interference. Each of the bosses has a conical chamfer on the edge near the end of the mounting body to guide the copper sleeve to be smoothly fitted along the axial direction; the outer surface of each boss is precision machined to form a preset surface roughness, and the outer diameter of each boss is 0.10mm-0.20mm smaller than the inner diameter of the copper sleeve to be installed, so as to ensure the clearance fit accuracy after the copper sleeve is fitted.

2. The copper sleeve installation device according to claim 1, characterized in that, Each of the bosses is coaxially distributed along the axial direction of the mounting body, and the radial dimension of each boss gradually decreases in a stepped manner along the direction away from the handle, so that each boss can be adapted to copper sleeves of different sizes.

3. The copper sleeve installation device according to claim 1, characterized in that, The outer surface of the handle is provided with an anti-slip texture, which is a cross-shaped mesh pattern or axial straight lines.

4. The copper sleeve installation device according to claim 1, characterized in that, The end chamfer of each boss is 30°-60°, and the surface of each chamfer is a smooth transition surface with a roughness of Ra0.8-Ra1.6 to avoid edge damage when the copper sleeve is fitted.

5. The copper sleeve installation device according to claim 1, characterized in that, An annular marking groove is provided between adjacent bosses, and the annular marking groove is used to distinguish bosses of different diameters.

6. The copper sleeve installation device according to claim 1, characterized in that, The outer surface of each boss is a preset surface with a roughness of Ra1.6-Ra3.2, which is used to reduce the frictional resistance between the copper sleeve and the boss and to prevent scratches on the inner wall of the copper sleeve due to the rough surface.

7. The copper sleeve installation device according to claim 1, characterized in that, The transition section is provided with axial scale lines, which are used to indicate the depth to which the installation device is struck into the copper sleeve.

8. The copper sleeve installation device according to claim 1, characterized in that, The copper sleeve mounting device is also provided with a calibration ring, the radial dimension of which is adapted to the radial dimension of each of the bosses, and the calibration ring is used to periodically verify the parameters of the bosses.

9. The copper sleeve installation device according to claim 3, characterized in that, The handle has a cylindrical structure, and the handle is connected to the adjacent boss through a rounded surface transition.

10. The copper sleeve installation device according to claim 1, characterized in that, The axial dimension of each boss is greater than the axial dimension of the copper sleeve to be installed, and the end of each boss away from the handle is a conical guide head with a taper of 1:10 to 1:20.

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