Developing roller magnetic core installation tool assembly and magnetic core assembly installation method

Abstract

The invention provides a developing roller magnetic core installation tool assembly used for installing a magnetic core assembly to a developing roller shaft and an installation method. The developing roller magnetic core installation tool assembly comprises a first working procedure tool used for carrying out first working procedure operation and a second working procedure tool used for carrying out second working procedure operation. The first process is used for installing at least one magnetic core in the magnetic core assembly, and the second process is used for installing the remaining magnetic cores; when the first working procedure is carried out, the first side face of the magnetic core which is firstly installed in the first working procedure is used for abutting against the first datum plane, so that the magnetic core which is firstly installed is positioned; in the installation process of other magnetic cores in the magnetic core assembly, the first side face / the second side face of the previous installed magnetic core serves as the reference face of the next installed magnetic core; the mounting method comprises a checking step, a developing roller shaft mounting step, a magnetic core assembly mounting step and a dismounting step. In the installation process, the magnetic core assembly is accurately positioned and installed, and the installation accuracy of the magnetic core assembly is improved.

Description

Technical Field

[0001] This invention relates to the field of electrophotographic imaging, and more specifically to an installation fixture assembly for mounting a developing roller core and a method for mounting the core assembly. Background Technology

[0002] The processing cartridge includes a photosensitive drum and a developing roller arranged opposite each other. The developing roller is used to transport toner to the photosensitive drum, so that the electrostatic latent image formed on the surface of the photosensitive drum is developed. The developing roller is configured as a magnetic roller. Specifically, the developing roller includes a developing roller shaft, a developing sleeve, and multiple magnetic cores installed on the radially outer surface of the developing roller shaft. The developing sleeve is sleeved on the radially outer side of the magnetic cores. The magnetic cores can rotate with the developing roller shaft, while the developing sleeve does not rotate. The installation accuracy of the magnetic cores on the developing roller shaft directly affects the imaging quality of the imaging device. The installation accuracy includes the magnetic pole angle, gap symmetry, Gaussian strength, etc. of the magnetic cores.

[0003] Generally, the magnetic core is manually pasted onto the developing roller shaft. This pasting method has disadvantages such as low pasting efficiency, poor accuracy, and reliance on on-machine testing. Summary of the Invention

[0004] This invention provides a developing roller core mounting fixture assembly capable of solving at least one of the above-mentioned technical problems, and a method for mounting the core assembly using the developing roller core mounting fixture assembly. The specific technical solution is as follows:

[0005] A developing roller core mounting fixture assembly is used to install a core assembly onto a developing roller shaft. The developing roller shaft includes a driving end, a non-driving end, and a roller shaft body for connecting the driving end and the non-driving end. The driving end is used to receive external driving force. The installation process includes at least a first step and a second step. With the developing roller core mounting fixture assembly placed on a horizontal plane as a reference, the length direction of the developing roller core mounting fixture assembly is the left-right direction. The developing roller core mounting fixture assembly includes:

[0006] The tooling for the first operation is used to perform the first operation, including:

[0007] First base;

[0008] The first tooling body is installed on the first base and includes at least one first receiving part and at least one reference part. The first receiving part is arranged adjacent to the reference part. The first receiving part is used to receive at least a part of the roller body. The reference part is provided with a first reference surface parallel to the left and right direction.

[0009] The first dial support includes a first dial support body and a first positioning shaft rotatably mounted on the first dial support body. The first dial support body includes a first dial with a second standard scale line. The first positioning shaft includes a first positioning part for positioning the drive end. The first positioning part is provided with a first standard scale line for cooperating with the second standard scale line.

[0010] The first right side plate is used to fix at least the non-driving end;

[0011] The first guide rail extends in the left and right direction and is used to guide the first right side plate to move in the left and right direction;

[0012] The second-stage tooling is used to perform the second-stage operation, including:

[0013] Second base;

[0014] The second tooling body is mounted on the second base and includes at least one fourth receiving portion, which is used to receive at least a portion of the magnetic core and roller body of the first process tooling installation.

[0015] The second dial support includes a second dial support body and a second positioning shaft rotatably mounted on the second dial support body. The second dial support body includes a second dial with a second standard scale line. The second positioning shaft includes a second positioning part for positioning the drive end. The second positioning part is provided with a first standard scale line for cooperating with the second standard scale line.

[0016] The second right side plate is used to fix at least the non-drive end;

[0017] The second guide rail extends in the left and right direction and is used to guide the first right side plate to move in the left and right direction;

[0018] The magnetic core assembly includes a plurality of magnetic cores mounted to the radial outer surface of the roller body along the circumferential direction of the roller body. Each magnetic core has a mounting surface, a first side surface, and a second side surface. The mounting surface is set as the radial inner surface of the magnetic core. The first step is used to install at least one magnetic core in the magnetic core assembly, and the second step is used to install the remaining magnetic cores in the magnetic core assembly.

[0019] During the first process, the first side of the magnetic core that is installed first in the first process is used to abut against the first reference surface, so that the magnetic core that is installed first is positioned.

[0020] During the installation of other magnetic cores in the magnetic core assembly, the first / second side of the previously installed magnetic core serves as the reference surface for the next magnetic core to be installed.

[0021] A developing roller core mounting fixture assembly is used to install a core assembly onto a developing roller shaft. The developing roller shaft includes a driving end, a non-driving end, and a roller shaft body for connecting the driving end and the non-driving end. The driving end is used to receive external driving force. The installation process includes at least a first step and a second step. With the developing roller core mounting fixture assembly placed on a horizontal plane as a reference, the length direction of the developing roller core mounting fixture assembly is the left-right direction. The developing roller core mounting fixture assembly includes:

[0022] Base;

[0023] The tooling body is mounted on the base and includes at least one reference part and at least one tooling receiving part. The reference part and the tooling receiving part are arranged adjacent to each other. The tooling receiving part is used to receive at least a part of the roller body. The reference part is provided with a first reference surface parallel to the left and right direction.

[0024] A dial support includes a dial support body and a positioning shaft rotatably mounted on the dial support body. The dial support body includes a dial with a second standard scale line. The positioning shaft includes a positioning part for positioning the drive end. The positioning part is provided with a first standard scale line for cooperating with the second standard scale line.

[0025] The right side plate is used to secure at least the non-drive end.

[0026] The guide rail extends in the left and right direction to guide the right side plate to move in the left and right direction;

[0027] The magnetic core assembly includes multiple magnetic cores mounted to the radial outer surface of the roller body along the circumferential direction of the roller body. Each magnetic core has a mounting surface, a first side surface, and a second side surface. The mounting surface is set as the radial inner surface of the magnetic core. The first step is used to install at least one magnetic core in the magnetic core assembly, and the second step is used to install the remaining magnetic cores in the magnetic core assembly.

[0028] During the first process, the first side of the magnetic core that is installed first in the first process is used to abut against the first reference surface, so that the magnetic core that is installed first is precisely positioned.

[0029] During the installation of other magnetic cores in the magnetic core assembly, the first / second side of the previously installed magnetic core serves as the reference surface for the next magnetic core to be installed.

[0030] The reference part is movable relative to the tooling body.

[0031] The reference section is retractable relative to the tooling body.

[0032] The reference part is detachable from the tooling body.

[0033] The plurality of magnetic cores includes a first magnetic core, a second magnetic core, a third magnetic core, a fourth magnetic core, and a fifth magnetic core, wherein at least one magnetic core is installed in the first process, the fourth and fifth magnetic cores are N-pole magnetic cores, and the first, second, and third magnetic cores are S-pole magnetic cores.

[0034] The installation sequence for the first step is to install the first magnetic core first, then the fourth magnetic core; the installation sequence for the second step is to install the third magnetic core first, then the fifth magnetic core, and finally the second magnetic core, or to install the second magnetic core first, then the fifth magnetic core, and finally the third magnetic core.

[0035] The first positioning part includes a first positioning surface and a first D-shaped through hole; or, the second positioning part includes a second positioning surface and a second D-shaped through hole; or, the positioning part includes a positioning surface and a D-shaped through hole. The first D-shaped through hole / the second D-shaped through hole / the D-shaped through hole both penetrate in the left-right direction. In the radial direction of the positioning axis / the first positioning axis / the second positioning axis, the first positioning surface / the second positioning surface / the positioning surface and the first D-shaped through hole / the second D-shaped through hole / the D-shaped through hole are opposite to each other. The first positioning surface / the second positioning surface / the positioning surface is perpendicular to the first standard scale line.

[0036] A method for mounting a magnetic core assembly to a developing roller shaft, the method comprising:

[0037] The inspection procedure includes checking whether the developing roller core mounting fixture assembly functions properly.

[0038] The steps for installing the developing roller shaft are as follows: Position and fix the developing roller shaft in the developing roller core mounting fixture assembly;

[0039] The steps for installing the magnetic core assembly are as follows: Install the magnetic core assembly onto the developing roller shaft;

[0040] The disassembly step involves removing the developing roller shaft, after the magnetic core assembly has been installed, from the developing roller magnetic core mounting fixture assembly.

[0041] During the installation of the magnetic core assembly, the first side of the magnetic core installed first in the first step is used to abut against the first reference surface, so that the magnetic core installed first is positioned; in subsequent magnetic core installations, the first / second side of the previously installed magnetic core is used as the reference surface for the next magnetic core to be installed.

[0042] The step of installing the magnetic core assembly includes a first step and a second step, wherein the first step includes:

[0043] Install the first magnetic core, apply adhesive to the mounting surface of the first magnetic core, abut the first side against the first reference surface, press the first magnetic core tightly against the radial outer surface of the roller body, and gently press both ends of the first magnetic core with both hands to maintain straight positioning for at least 3 seconds before releasing.

[0044] To install the fourth magnetic core, the second side of the first magnetic core is used as the reference surface, and the first side of the fourth magnetic core is in contact with the reference surface. The installation operation is the same as the installation operation of the first magnetic core.

[0045] The second process steps include:

[0046] To install the third magnetic core, the second side of the fourth magnetic core is used as the reference surface, and the first side of the third magnetic core is in contact with the reference surface. The installation operation is the same as the installation operation of the first magnetic core.

[0047] To install the fifth magnetic core, the second side of the third magnetic core is used as the reference surface, and the first side of the fifth magnetic core is in contact with the reference surface. The installation operation is the same as the above operation.

[0048] To install the second magnetic core, the second side of the fifth magnetic core is used as the reference surface, and the first side of the second magnetic core is in contact with the reference surface. The installation operation is the same as the above operation.

[0049] Alternatively, the second process step includes:

[0050] To install the second magnetic core, the first side of the first magnetic core is used as the reference surface, and the second side of the second magnetic core abuts against the reference surface. The installation operation is the same as the installation operation of the first magnetic core.

[0051] To install the fifth magnetic core, the first side of the third magnetic core is used as the reference surface, and the second side of the fifth magnetic core is in contact with the reference surface. The installation operation is the same as the above operation.

[0052] When installing the third magnetic core, the first side of the fifth magnetic core 2 is used as the reference surface, and the second side of the second magnetic core is in contact with the reference surface. The installation operation is the same as the above operation.

[0053] After the first process step is completed and before the second process step, rotate the positioning shaft / second positioning shaft so that the first standard scale line is aligned with the "-30°" scale line in the second standard scale line along the radial direction of the positioning shaft / second positioning shaft.

[0054] Compared with the prior art, in the process of installing the magnetic core assembly to the developing roller shaft using the developing roller magnetic core mounting fixture assembly provided by the present invention, the magnetic core assembly can be accurately positioned and installed to the roller shaft body, and the installation angle error of each magnetic core does not exceed 0.5°. This can solve the problem of poor accuracy of the magnetic core assembly S in traditional manual pasting, and at the same time reduce the defect rate of the installed magnetic core assembly S.

[0055] In addition, the developing roller core mounting fixture assembly can simultaneously mount magnetic cores on multiple developing roller shafts 21, which can improve production efficiency and reduce labor costs. Attached Figure Description

[0056] Figure 1 This is a perspective view of the developing roller involved in this invention.

[0057] Figure 2 This is an exploded view of the developing roller involved in the present invention.

[0058] Figure 3 The present invention relates to a developing roller, along... Figure 1 Plan view after sectioning along the AA direction.

[0059] Figure 4 This is a perspective view of the developing roller shaft for mounting the magnetic core assembly, as per the present invention.

[0060] Figure 5 This is a partial perspective view of the magnetic core assembly involved in this invention.

[0061] Figure 6 This is a partial perspective view of the first magnetic core of the magnetic core assembly involved in this invention.

[0062] Figure 7 This is a perspective view of the first process tooling of the developing roller magnetic core mounting tooling assembly involved in this invention.

[0063] Figure 8 This is an exploded view of some components of the first-process tooling of the developing roller core mounting tooling assembly involved in this invention.

[0064] Figure 9 This is an exploded view of some components of the second-stage tooling of the developing roller core mounting fixture assembly involved in this invention.

[0065] Figure 10 This is an exploded view of some components of the dial bracket of the developing roller core mounting fixture assembly involved in this invention.

[0066] Figure 11 This is a perspective view of the developing roller magnetic core mounting fixture assembly when the magnetic core assembly of the present invention is installed.

[0067] Figure 12 This is a plan view of the developing roller magnetic core mounting fixture assembly viewed from back to front when the magnetic core assembly of the present invention is installed.

[0068] Figure 13 The present invention relates to a plan view obtained by observing from left to right during the first process after the left baffle of the developing roller magnetic core mounting fixture assembly is hidden.

[0069] Figure 14 This invention relates to a plan view obtained by observing from left to right during the second process after the left baffle of the developing roller magnetic core mounting fixture assembly is hidden.

[0070] Figure 15 This invention relates to a plan view taken from left to right after the first process is completed, following the installation of the developing roller magnetic core assembly, with the left baffle, dial bracket, and support bracket concealed.

[0071] Figure 16 This is a plan view of the developing roller core mounting fixture assembly according to the present invention, taken from left to right, after the left baffle, scale bracket and support bracket are hidden during the installation of the core assembly, and after the second process is completed. Detailed Implementation

[0072] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0073] [Structure of the developing roller]

[0074] The processing cartridge can be detachably installed into the imaging device. The processing cartridge includes a photosensitive drum and a developing roller 20 disposed opposite each other. The developing roller 20 is used to deliver toner to the photosensitive drum, thereby developing the electrostatic latent image formed on the surface of the photosensitive drum; such as Figure 1 , Figure 2 and Figure 3 As shown, the developing roller 20 includes a developing roller shaft 21, a developing sleeve 22, and a magnetic core assembly S mounted on the radial outer surface of the developing roller shaft 21, as follows: Figure 4 and Figure 5 As shown, the magnetic core assembly S includes a first magnetic core S1, a second magnetic core S2, a third magnetic core S3, a fourth magnetic core N1, and a fifth magnetic core N2. The fourth magnetic core N1 and the fifth magnetic core N2 are N-pole magnetic cores, and the first magnetic core S1, the second magnetic core S2, and the third magnetic core S3 are S-pole magnetic cores. The developing sleeve 22 is sleeved on the radially outer side of the magnetic core assembly S. The developing roller shaft 21 can rotate around the first rotation axis L. When the imaging device is imaging, the magnetic core assembly S can rotate together with the developing roller shaft 21, and the developing sleeve 22 does not rotate.

[0075] like Figure 2 and Figure 3As shown, the developing roller 21 includes a driving end 21a, a roller body 21b, and a non-driving end 21c. Along a first direction (left-right direction) parallel to the first rotation axis L, the driving end 21a and the non-driving end 21c are located at both ends of the roller body 21b, respectively. Along the left-right direction, the driving end 21a is located to the left of the non-driving end 21c. The driving end 21a is used to receive driving force and has a first positioning surface 21a1. When viewed along the left-right direction, the driving end 21a is set in a "D" shape. The roller body 21b is used to support the magnetic core assembly S. Specifically, the first magnetic core S1, the second magnetic core S2, the third magnetic core S3, the fourth magnetic core N1, and the fifth magnetic core N2 are installed on the radial outer surface of the roller body 21b along the circumferential direction of the developing roller 21. The installation method can be snap-fit, or adhesive, or magnetic installation between the magnetic core and the roller body 21b. This embodiment is illustrated by taking the magnetic core assembly S being adhesively attached to the developing roller 21 as an example.

[0076] The developing roller 20 further includes at least one bushing 23, at least one support member 24, and at least one limiting member 25. The bushing 23 supports the driving end 21a and / or the non-driving end 21c of the developing roller shaft 21. The support member 24 supports the developing sleeve 22. Along the radial direction of the developing roller shaft 21, at least a portion of the bushing 23 coincides with the support member 24. The support member 24 is provided with at least one receiving groove 24a for receiving adhesive, so that the developing sleeve 22 is fixed to the support member 24. The limiting member 25 is provided at the driving end 21a and / or the non-driving end 21c. It is used to limit the movement of the magnetic core assembly S along a first direction. In the first direction, compared with the bushing 23 or the support member 24, the limiting member 25 is closer to the center of the roller body 21b in the left-right direction. The developing roller 21 is provided with a mating part 21d at the driving end 21a and / or the non-driving end 21c for interacting with the limiting member 25. The interaction between the limiting member 25 and the mating part 21d can be a snap-fit. For example, the mating part 21d is configured as a groove recessed toward the radial center of the developing roller 21, and the limiting member 25 is configured as a retaining spring that can be installed into the groove.

[0077] In some embodiments, the bushing 23 is made of copper, which utilizes the high wear resistance of copper to prevent the bushing 23 from being worn, thereby preventing the developing roller shaft 21 from being stably supported.

[0078] like Figure 3As shown, when the first magnetic core S1, the fourth magnetic core N1, the second magnetic core S2, the third magnetic core S3 and the fifth magnetic core N2 are all installed on the radial outer surface of the developing roller shaft 21, along the first direction, there is a gap h2 between the left end of each magnetic core and the bushing 23 located at the driving end 21a, and a gap h1 between the right end of each magnetic core and the bushing 23 located at the non-driving end 21c. With this arrangement, the magnetic core and the bushing 23 can be prevented from rubbing against each other.

[0079] like Figure 5 and Figure 6 As shown, the first magnetic core S1, the second magnetic core S2, the third magnetic core S3, the fourth magnetic core N1, and the fifth magnetic core N2 have the same basic structure. When viewed from the left and right direction, each magnetic core is fan-shaped and has a mounting surface 31, a first side surface 32, and a second side surface 33. The mounting surface 31 is set as the radial inner surface of each magnetic core, and the mounting surface 31 is an arc surface. In this way, during the installation of each magnetic core, the mounting surface 31 can better fit with the radial outer surface of the roller body 21b, so that each magnetic core is stably installed on the developing roller 21. According to the specific installation sequence of each magnetic core in the magnetic core assembly S, the first side surface / second side surface of the previously installed magnetic core is used as the reference surface of the next magnetic core to be installed. In some embodiments, the first side surface 32 and the second side surface 33 are set as curved surfaces or planes.

[0080] According to the development requirements of the imaging equipment, the distribution of different magnetic cores in the circumferential direction of the developing roller shaft 21 needs to meet specific positional requirements. This results in some magnetic cores being used to adsorb toner, some magnetic cores being used to transport toner, some magnetic cores being used to form a magnetic field with the photosensitive drum, etc., so as to transport toner from the surface of the developing roller 20 to the surface of the photosensitive drum, and some magnetic cores being used to unload toner that has not participated in development from the surface of the developing roller 20.

[0081]

Developer Roller Core Mounting Fixture Assembly

[0082] This invention provides a developing roller magnetic core mounting fixture assembly 10 that precisely positions and installs the magnetic core assembly S onto the developing roller shaft 21 according to the specific positional requirements of each magnetic core of the magnetic core assembly S in the circumferential direction of the developing roller shaft 21. In other words, the developing roller magnetic core mounting fixture assembly 10 can be used to assemble the following second developing roller semi-finished product. The process of installing the magnetic core assembly S onto the developing roller shaft 21 using the developing roller magnetic core mounting fixture assembly 10 includes multiple steps. Specifically, the installation process includes a first step and a second step. The first step refers to using the developing roller magnetic core mounting fixture assembly 10 to install at least one magnetic core from the magnetic core assembly S onto the developing roller shaft 21. The developing roller shaft 21 and the magnetic core installed on the developing roller shaft 21 after the first step can be referred to as the "first developing roller semi-finished product." The second step is to utilize... The remaining magnetic cores in the magnetic core assembly S are installed onto the developing roller shaft 21 using the developing roller core mounting fixture assembly 10. The developing roller shaft 21 and the magnetic core assembly S after the second process can be referred to as the "second developing roller semi-finished product". During the first process, the first side of the magnetic core installed first is used to abut against the first reference surface 12a21, so that the first magnetic core is positioned. In subsequent magnetic core installations, the first / second side of the previously installed magnetic core is used as the reference surface for the next installed magnetic core. In this embodiment, the first magnetic core S1 is installed first. When installing the first magnetic core S1, the first side 32 of the first magnetic core S1 is used to abut against the first reference surface 12a21, so that the first magnetic core S1 is accurately positioned and installed. Then, the remaining magnetic cores are installed in the same order.

[0083] In this embodiment, the first step is to install the first magnetic core S1 and the fourth magnetic core N1 onto the developing roller shaft 21, and the second step is to install the third magnetic core S3, the fourth magnetic core N2 and the second magnetic core S2 onto the developing roller shaft 21.

[0084] The sequence of installing the magnetic cores using the developing roller magnetic core mounting fixture assembly 10 is either "first magnetic core S1 → fourth magnetic core N1 → third magnetic core S3 → fourth magnetic core N2 → second magnetic core S2" or "first magnetic core S1 → fourth magnetic core N1 → second magnetic core S2 → fourth magnetic core N2 → third magnetic core S3". Preferably, the former installation sequence is used because the magnetic core assembly S is distributed along the circumference of the developing roller shaft 21. In the latter installation sequence, the second magnetic core S2 is installed after the first magnetic core S1. The second magnetic core S2 and the first magnetic core S1 have the same polarity. Therefore, there is a repulsive force between the second magnetic core S2 and the first magnetic core S1. The repulsive force may affect the installation accuracy of the second magnetic core S2.

[0085] With the developing roller core mounting fixture assembly 10 placed on a horizontal plane as a reference, the height direction of the developing roller core mounting fixture assembly 10 is the up-down direction, the length direction of the developing roller core mounting fixture assembly 10 is the left-right direction, and the width direction of the developing roller core mounting fixture assembly 10 is the front-back direction. Preferably, the up-down, left-right, and front-back directions are orthogonal to each other. The developing roller core mounting fixture assembly 10 includes a first process fixture 10a and a second process fixture 10b. The first process fixture 10a is used to perform the first process operation, and the second process fixture 10b is used to perform the second process operation.

[0086] (Tooling for the first process)

[0087] like Figure 7 and Figure 8 As shown, the first process fixture 10a includes a first base 11a and a first fixture body 12a disposed on the first base 11a. The first fixture body 12a is used to accommodate at least a portion of the developing roller 21. The first fixture body 12a includes at least one first receiving portion 12a1 and at least one reference portion 12a2. The number of first receiving portions 12a1 corresponds to the number of reference portions 12a2. The first receiving portion 12a1 is used to accommodate at least a portion of the roller body 21b. The reference portion 12a2 is disposed adjacent to the first receiving portion 12a1 in the front-back direction. The reference portion 12a2 is provided with a first reference surface 12a21 for use as a reference when installing the first magnetic core S1. Thus, during the installation of the first magnetic core S1, the first magnetic core S1 is precisely positioned in the circumferential direction of the roller body 21b through the first reference surface 12a21. The first magnetic core S1 is accurately positioned and installed on the radial outer surface of the roller body 21b.

[0088] In some embodiments, the first reference plane 12a21 is inclined relative to a direction perpendicular to the left and right direction.

[0089] In some embodiments, the first reference plane 12a21 is parallel to the left-right direction.

[0090] In some embodiments, the first tooling body 12a is provided with a plurality of first receiving portions 12a1 arranged in the front-back direction.

[0091] In some embodiments, the first reference surface 12a21 is located behind the first receiving portion 12a1.

[0092] In some embodiments, the first reference surface 12a21 is configured as a curved surface or a plane according to the shape of the first side surface of the first magnetic core S1.

[0093] Continue as Figure 7 and Figure 8As shown, the first process fixture 10a further includes a first dial bracket 14a, a first right side plate 16a, a first guide rail 17a, a first fixing member 18a, a second fixing member 18b, and a third fixing member 18c. The first dial bracket 14a and the first right side plate 16a are located on the left and right sides of the first fixture body 12a, respectively. The first dial bracket 14a is fixed to the first fixture body 12a by the first fixing member 18a. The first dial bracket 14a includes a first dial bracket body 14a1 and at least one first positioning shaft 14a2. The first positioning shaft 14a2 is rotatably mounted on the first... In a dial support body 14a1, a first positioning shaft 14a2 can rotate around a second rotation axis parallel to the left and right direction. When the developing roller shaft 21 is installed in the first process fixture 10a, the first rotation axis L and the second rotation axis coincide. Specifically, the driving end 21a of the developing roller shaft 21 is installed in the first positioning shaft 14a2, and the driving end 21a can rotate together with the first positioning shaft 14a2. Preferably, when the first fixture body 12a is provided with multiple first receiving parts 12a1, the corresponding multiple first positioning shafts 14a2 are arranged sequentially along the front and back direction.

[0094] like Figure 10 As shown, the first positioning shaft 14a2 includes a first positioning shaft body 14a21 and a first positioning part 14a22 disposed in the first positioning shaft body 14a21. The first positioning part 14a22 is used to position the driving end 21a. The first positioning part 14a22 includes a first positioning surface 14a23 and a first D-shaped through hole 14a24 extending in the left-right direction. Along the radial direction of the first positioning shaft 14a2, the first positioning surface 14a23 is opposite to the first D-shaped through hole 14a24. The first positioning surface 14a23 is used to abut against the first positioned surface 21a1. The first D-shaped through hole 14a24 is used to accommodate at least a part of the driving end 21a. Through the first positioning surface 14a23 and the first D-shaped through hole 14a24, the driving end 21a is positioned on the first positioning shaft 14a2.

[0095] When the drive end 21a is positioned on the first positioning shaft 14a2, the first positioning surface 14a23 and the first positioned surface 21a1 are parallel to each other and abut against each other; the first positioning shaft body 14a21 has a first surface 14a25 and a first standard scale line P1 provided on the first surface 14a25. The first standard scale line P1 is perpendicular to the first positioning surface 14a23 / first positioned surface 21a1. In some embodiments, the first standard scale line P1 is set as a "0°" scale line.

[0096] In some embodiments, the first positioning part 14a22 is disposed at the radial center of the first positioning shaft body 14a21.

[0097] Continue as Figure 10 As shown, the first dial support body 14a1 has a second surface 14a11 and a first dial 14a12 disposed on the second surface 14a11. The first dial 14a12 is provided with a second standard scale line P2, which is used to cooperate with the first standard scale line P1 to indicate the position of the first positioning surface 21a1. The second standard scale line P2 includes a "0°" scale line, a "-30°" scale line and a "30°" scale line disposed on the dial 14a2. When the first process is operated using the first process tooling 10a, the first standard scale line P1 is aligned with the "0°" scale line of the second standard scale line P2 along the radial direction of the first positioning shaft 14a2. Then, the first positioning shaft 14a2 is fixed to the first dial support body 14a1 using the first fixing member 18a. At this time, the first positioning shaft 14a2 cannot be rotated, and the first positioning surface 21a1 faces upward.

[0098] In some embodiments, the second surface 14a11 and the first surface 14a25 coincide along the radial direction of the first positioning axis 14a2, which facilitates observation of whether the scale lines in the first standard scale line P1 and the second standard scale line P2 are aligned.

[0099] In some embodiments, the first positioning shaft 14a2 is replaceable. Specifically, the diameter of the first D-shaped through hole 14a24 can be changed, so that the first positioning shaft 14a2 can be adapted to developing roller shafts 21 with different diameters. In some specific embodiments, the first positioning shaft 14a2 is adapted to developing roller shafts 21 with a diameter range of 4mm to 12mm.

[0100] The first guide rail 17a extends in the left-right direction and is fixed to the first base 11a by the second fixing member 18b; the first right side plate 16a is used to fix the non-driven end 21c of the developing roller 21. Through the combined action of the first scale bracket 14a and the first right side plate 16a, the developing roller shaft 21 is fixed to the first process tooling 10a; the first right side plate 16a is provided with at least one second receiving portion 16a1 for accommodating at least a portion of the non-driven end 21c. The non-driven end 21c is fixed by the second receiving portion 16a1. When the developing roller shaft 21 is in a non-driven position... After end 21c is fixed, the first right side plate 16a is fixed by the third fastener 18c; the first right side plate 16a can move left and right along the first guide rail 17a, so that the first tooling body 12a can be installed on developing roller shafts 21 with different dimensions in the left and right directions, thereby realizing the installation of magnetic core assembly S on the corresponding developing roller shaft 21, thus broadening the applicability of the developing roller magnetic core mounting tooling assembly 10; in some specific embodiments, the developing roller shaft 21 has a left and right dimension range of 80mm to 450mm; when the first process tooling 10a is provided with multiple first guide rails 17a, the multiple first guide rails 17a are arranged in the front and back directions.

[0101] In some embodiments, the second receiving portion 16a1 is configured as a through hole extending in the left-right direction.

[0102] In some embodiments, the second receiving portion 16a1 is configured as a groove with an opening facing the first tooling body 12a.

[0103] In some embodiments, the second receiving portion 16a1 may also simultaneously accommodate the bushing 23 installed on the non-drive end 21c and at least a portion of the non-drive end 21c. In this configuration, the developing roller shaft 21 is easier to rotate, making it easier to adjust the position of the developing roller shaft 21 on the developing roller core mounting fixture assembly 10 in a timely manner.

[0104] In some embodiments, the first guide rail 17a is further provided with an anti-detachment component 17a1, which can prevent the first right side plate 16a from detaching from the first guide rail 17a during the movement of the first guide rail 17a.

[0105] In some embodiments, the first process tooling 10a further includes a first left side plate 13a located to the left of the first dial bracket 14a. The first left side plate 13a is fixed to the first dial bracket 14a by any of the aforementioned fasteners, and at least one of the first left side plate 13a and the first right side plate 16a is movable. The first left side plate 13a is used to protect the first dial bracket 14a, and at least a portion of the first left side plate 13a overlaps with the first dial bracket 14a in the left-right direction.

[0106] In some embodiments, the second surface 14a11 and the first surface 14a25 face away from the first tooling body 12a, or face the first left side plate 13a.

[0107] like Figure 8 As shown, in some embodiments, the first process fixture 10a further includes at least a first support bracket 15a for supporting the drive end 21a of the developing roller 21. The first support bracket 15a includes at least one third receiving portion 15a1 and a third surface 15a2. The third surface 15a2 faces the first fixture body 12a. The third receiving portion 15a1 is used to receive at least a portion of the drive end 21a. The third receiving portion 15a1 is configured as an upward-opening groove. Furthermore, the minimum dimension of the third receiving portion 15a1 in the front-back direction is equal to or slightly larger than the diameter of the drive end 21a. In this way, the drive end 21a can be further restricted, so that the developing roller 21 / drive end 21a is more stably fixed.

[0108] In some embodiments, the first dial bracket 14a can also be fixed to the first base 11a by the second fastener 18b.

[0109] like Figure 11 and Figure 12 As shown, during the installation of the magnetic core assembly S, along the left-right direction, the left end of each magnetic core abuts against the third surface 15a2 of the first support bracket 15a, and the right end of each magnetic core may or may not abut against the first right side plate 16a / sleeve 23.

[0110] When the first process tooling 10a is not equipped with the first support bracket 15a, during the installation of the magnetic core assembly S, the left end of each magnetic core abuts against the surface of the first dial bracket 14a facing the first tooling body 12a in the left-right direction.

[0111] In some embodiments, the first process tooling 10a further includes at least one handle 19 disposed on the base 11, the handle 19 facilitating the operator to pick up and put down the first process tooling 10a.

[0112] In some embodiments, the first fixing member 18a is configured as a bolt, the second fixing member 18b is configured as a hexagonal screw, and the third fixing member 18c is configured as a column. The column enters the receiving hole / receiving groove provided in the first base 11a by free fall, thereby fixing the first right side plate 16a. To unlock, the column can be pulled upward.

[0113] (Second process tooling)

[0114] like Figure 9As shown, the second process fixture 10b includes a second base 11b and a second fixture body 12b disposed on the second base 11b. The second fixture body 12b is used to accommodate at least a portion of the first developing roller semi-finished product. The second fixture body 12b includes at least one fourth accommodating portion 12b1. The fourth accommodating portion 12b1 is used to accommodate at least the magnetic core in the first developing roller semi-finished product. Compared with the first process fixture 10a, the second process fixture 10b no longer provides a reference portion 12a2, but uses the magnetic core installed in the first process as the reference portion.

[0115] In some embodiments, the second tooling body 12b is provided with a plurality of fourth receiving portions 12b1 arranged in the front-back direction.

[0116] The second process tooling 10b also includes a second dial bracket 14b, a second right side plate 16b, a second guide rail 17b, a first fixing member 18a, a second fixing member 18b, and a third fixing member 18c. The second dial bracket 14b has the same structure as the first dial bracket 14a, the second right side plate 16b has the same structure as the first right side plate 16a, and the second guide rail 17b has the same structure as the first guide rail 17a.

[0117] Specifically, the second dial bracket 14b includes at least one second positioning shaft 14b2 with the same structure as the first positioning shaft 14a2, at least one second positioning surface 14b23 with the same structure as the first positioning surface 14a23, and at least one second D-shaped through hole 14b24 with the same structure as the first D-shaped through hole 14a24; the second right side plate 16b includes at least one fifth receiving portion 16b1 with the same structure as the second receiving portion 16a1.

[0118] In the second process, the first positioning surface 21a1 is inclined relative to the vertical direction. In the tooling 10b of the second process, the first standard scale line P1 is aligned with the "-30°" scale line of the second standard scale line P2 along the radial direction of the second positioning shaft 14b2.

[0119] In some embodiments, the second process tooling 10b further includes a second left side plate 13b located to the left of the second dial bracket 14b, the second left side plate 13b having the same structure as the first left side plate 13a.

[0120] In some embodiments, the second process tooling 10b further includes at least a second support bracket 15b for supporting the drive end 21a of the developing roller shaft 21, the second support bracket 15b having the same structure as the first support bracket 15a.

[0121] In summary, the basic structure of the second process tooling 10b is the same as that of the first process tooling 10a. The specific differences are as follows:

[0122] First, the first tooling body 12a of the first process tooling 10a is provided with a reference part 12a2 and a first reference surface 12a21, while the second process tooling 10b does not have such a part.

[0123] Second, the accommodating space of the first accommodating part 12a1 of the first process tooling 10a is less than or equal to the accommodating space of the fourth accommodating part 12b1 of the second process tooling 10b.

[0124] [Installation steps for installing the magnetic core assembly S using the first process fixture 10a and the second process fixture 10b]

[0125] Based on the above description, the steps for installing the magnetic core assembly S onto the developing roller shaft 21 in this invention are as follows:

[0126] The inspection procedure involves checking whether the first process tooling 10a and the second process tooling 10b can be used normally.

[0127] The first installation step is to position and fix the developing roller shaft 21 in the first process tooling 10a.

[0128] In the first process step, at least one magnetic core from the magnetic core assembly S is installed onto the roller body 21b of the developing roller 21 to form a first developing roller semi-finished product.

[0129] The first disassembly step involves disassembling the first developing roller semi-finished product from the first process tooling 10a.

[0130] The second installation step involves positioning and fixing the first developing roller semi-finished product in the second process tooling 10b.

[0131] In the second process step, the remaining magnetic core of the magnetic core assembly S is installed onto the roller body 21b to form a second developing roller semi-finished product.

[0132] The second disassembly step involves disassembling the second developing roller semi-finished product from the second process tooling 10b.

[0133] The first installation step specifically includes:

[0134] In the step of disassembling the first right side plate 16a, the third fastener 18c is removed, so that the first right side plate 16a can move to the right along the first guide rail 17a.

[0135] The steps for installing and positioning the developing roller shaft 21 are as follows: The developing roller shaft 21 is installed along the left-right direction, at least a portion of the drive end 21a is accommodated by the first D-shaped through hole 14a24, the first positioned surface 21a1 abuts against the first positioning surface 14a23, and the first positioning shaft 14a2 is rotated. Figure 13As shown, the "0°" scale line of the second standard scale line P2 is aligned with the first standard scale line P1 in the radial direction of the first positioning shaft 14a2. The first positioning shaft 14a2 is fixed using the first fixing member 18a. The first right side plate 16a is moved so that at least a portion of the non-driving end 21c is accommodated by the second receiving part 16a1. The first right side plate 16a is fixed using the third fixing member 18c.

[0136] like Figure 15 As shown, the first process step specifically includes:

[0137] The steps for installing the first magnetic core S1 are as follows: apply adhesive to the mounting surface 31 of the first magnetic core S1, abut the first side 32 against the first reference surface 12a21, press the first magnetic core S1 tightly against the radial outer surface of the roller body 21b, and gently press both ends of the first magnetic core S1 with both hands to maintain straight positioning for at least 3 seconds before releasing.

[0138] The steps for installing the fourth magnetic core N1 are the same as those for installing the first magnetic core S1, but the first side of the fourth magnetic core N1 is in contact with the reference surface, with the second side 33 of the first magnetic core S1 as the reference surface.

[0139] The second installation step specifically includes:

[0140] In the step of disassembling the second right side plate 16b, the third fastener 18c is removed, so that the second right side plate 16b can move to the right along the second guide rail 17b.

[0141] The step of installing and positioning the first developing roller semi-finished product involves installing the developing roller shaft 21 along the left-right direction, with at least a portion of the drive end 21a accommodated by the second D-shaped through hole 14b24, the first positioning surface 21a1 abutting against the second positioning surface 14b23, and rotating the second positioning shaft 14b2. Figure 14 As shown, the "-30°" scale line of the second standard scale line P2 is aligned with the first standard scale line P1 in the radial direction of the second positioning shaft 14b2. The second positioning shaft 14b2 is fixed using the first fixing member 18a. The second right side plate 16b is moved so that at least a portion of the non-driving end 21c is accommodated by the fifth receiving part 16b1. The second right side plate 16b is fixed using the third fixing member 18c.

[0142] like Figure 16 As shown, the second process steps specifically include:

[0143] The steps for installing the third magnetic core S3 are as follows: the second side of the fourth magnetic core N1 is used as the reference surface, and the first side of the third magnetic core S3 abuts against the reference surface. The installation operation is the same as the operation for installing the first magnetic core S1.

[0144] The steps for installing the fifth magnetic core N2 are as follows: the second side of the third magnetic core S3 is used as the reference surface, and the first side of the fifth magnetic core N2 abuts against the reference surface. The installation operation is the same as the above operation.

[0145] The steps for installing the second magnetic core S2 are as follows: the second side surface of the fifth magnetic core N2 is used as the reference surface, and the first side surface of the second magnetic core S2 abuts against the reference surface. The installation operation is the same as the above operation.

[0146] Alternatively, the second process step includes:

[0147] The steps for installing the second magnetic core S2 are as follows: the first side surface of the first magnetic core S1 is used as the reference surface, and the second side surface of the second magnetic core S2 abuts against the reference surface. The installation operation is the same as the operation for installing the first magnetic core S1.

[0148] The steps for installing the fifth magnetic core N2 are as follows: the first side of the third magnetic core S3 is used as the reference surface, and the second side of the fifth magnetic core N2 abuts against the reference surface. The installation operation is the same as the above operation.

[0149] The steps for installing the third magnetic core S3 are as follows: the first side of the fifth magnetic core N2 is used as the reference surface, and the second side of the second magnetic core S2 is in contact with the reference surface. The installation operation is the same as described above.

[0150] When the first process tooling 10a is provided with the first left side plate 13a, or the second process tooling 10b is provided with the second left side plate 13b, if it is necessary to rotate the first positioning shaft 14a2 or the second positioning shaft 14b2 during the above installation process, the first left side plate 13a or the second left side plate 13b needs to be removed first.

[0151] According to the inventive concept of the present invention, the first process and the second process can be completed in the same tooling. That is, the first process tooling 10a and the second process tooling 10b are combined into one installation tooling. The installation tooling includes at least a base 11, a dial bracket 14, a right side plate 16, and a guide rail 17. Specifically, the installation tooling is set with reference to the second process tooling 10b. The base 11 is set as the second base 11b, the dial bracket 14 is set as the second dial bracket 14b, the right side plate 16 is set as the second right side plate 16b, and the guide rail 17 is set as the second guide rail 17b. The dial bracket 14 includes a positioning pivot 141 and a D-shaped through hole 142. The positioning pivot 141 is set as the second positioning pivot 14b2, and the D-shaped through hole 142 is set as the second D-shaped through hole 14b24. The right side plate 16 is provided with a sixth receiving portion 161, which has the same structure as the fifth receiving portion 16b1.

[0152] In some embodiments, the mounting fixture includes a first fixture body 12a and a second fixture body 12b. Both the first fixture body 12a and the second fixture body 12b can be detachably mounted to the base 11. After the first process is completed, the first fixture body 12a is replaced with the second fixture body 12b, and then the second process is performed. In this way, the magnetic core installed in the first process can be accommodated by the fourth receiving part 12b1 of the second fixture body 12b, avoiding interference from the magnetic core installed in the first process to the second process.

[0153] In some embodiments, during the installation of the magnetic core assembly S, it is not necessary to replace the tooling body 12. That is, the first tooling body 12a and the second tooling body 12b are combined into the tooling body 12. Specifically, the tooling body 12 includes a tooling receiving part and a reference part 12a2. The tooling receiving part is used to receive the magnetic core in the first developing roller semi-finished product. The reference part 12a2 is provided with a first reference surface 12a21. After the first process is completed, the magnetic core in the first developing roller semi-finished product is received by the tooling receiving part by rotation. At the same time, it will not affect the second process. With this configuration, the versatility of the developing roller magnetic core installation tooling assembly 10 is enhanced.

[0154] In some embodiments, the tooling receiving portion can be considered as a fourth receiving portion 12b1.

[0155] Specifically, the reference part 12a2, which has a first reference surface 12a21 in the tooling body 12, is configured to be movable or retractable relative to the tooling body 12. After the first process is completed, the reference part 12a2 is moved to a position that will not interfere with the second process, so as to ensure that the second process can be carried out smoothly.

[0156] Alternatively, the reference part 12a2 can be installed in a detachable manner. After the first process is completed, the reference part 12a2 can be removed from the tooling body 12 to ensure that the second process can proceed smoothly.

[0157] [Installation steps for installing the magnetic core assembly S using installation fixtures]

[0158] Check the steps to ensure that the installation fixtures are functioning correctly.

[0159] The steps for installing the developing roller shaft 21 are as follows: Position and fix the developing roller shaft 21 in the mounting fixture.

[0160] The step of installing the magnetic core assembly S is to install the magnetic core assembly S onto the developing roller shaft 21 to form a second developing roller semi-finished product.

[0161] The disassembly step involves removing the second developing roller semi-finished product from the mounting fixture.

[0162] The step of installing the developing roller 21 specifically includes:

[0163] In the step of moving the right side plate 16, the third fastener 18c is removed from the right side plate 16, and the right side plate 16 moves to the right along the guide rail 17.

[0164] The steps for installing and positioning the developing roller shaft 21 are as follows: The developing roller shaft 21 is installed along the left-right direction, at least a portion of the driving end 21a is accommodated by the D-shaped through hole 142, the first positioning surface 21a1 abuts against the second positioning surface 14b23, the positioning shaft 141 is rotated so that the "0°" scale line of the second standard scale line P2 is aligned with the first standard scale line P1 along the radial direction of the positioning shaft 141, the positioning shaft 14b is fixed using the first fixing member 18a, the right side plate 16 is moved so that at least a portion of the non-driving end 21c is accommodated by the sixth receiving part 161, and the right side plate 16 is fixed using the third fixing member 18c.

[0165] The steps for installing the magnetic core assembly S specifically include:

[0166] The steps for installing the first magnetic core S1 are as follows: apply adhesive to the mounting surface of the first magnetic core S1, abut the first side against the first reference surface 12b, press the first magnetic core S1 tightly against the radial outer surface of the roller body 21b, and gently press both ends of the first magnetic core S1 with both hands to maintain straight positioning for at least 3 seconds before releasing.

[0167] The steps for installing the fourth magnetic core N1 are the same as those for installing the first magnetic core S1, but the first side of the fourth magnetic core N1 is in contact with the reference surface, with the second side of the first magnetic core S1 as the reference surface.

[0168] Rotate the positioning shaft 141 so that the "-30°" scale line of the second standard scale line P2 is aligned with the first standard scale line P1 along the radial direction of the positioning shaft 141;

[0169] The steps for installing the third magnetic core S3 are as follows: with the second side of the fourth magnetic core N1 as the reference surface, the first side of the third magnetic core S3 abuts against the reference surface, and the installation operation is the same as the above operation.

[0170] The steps for installing the fifth magnetic core N2 are as follows: the second side of the third magnetic core S3 is used as the reference surface, and the first side of the fifth magnetic core N2 abuts against the reference surface. The installation operation is the same as the above operation.

[0171] The steps for installing the second magnetic core S2 are as follows: the second side surface of the fifth magnetic core N2 is used as the reference surface, and the first side surface of the second magnetic core S2 abuts against the reference surface. The installation operation is the same as the above operation.

[0172] In the second installation process, the second magnetic core S2 can be installed first, followed by the fifth magnetic core N2, and finally the third magnetic core S3. However, in the specific installation process, when installing the second magnetic core S2, the first side of the first magnetic core S1 should be used as the reference surface, and the second side of the second magnetic core S2 should be in contact with the reference surface. Similarly, when installing the fifth magnetic core N2, the first side of the second magnetic core S2 should be used as the reference surface, and the second side of the fifth magnetic core N2 should be in contact with the reference surface. Finally, when installing the third magnetic core S3, the first side of the fifth magnetic core N2 should be used as the reference surface, and the second side of the third magnetic core S3 should be in contact with the reference surface.

[0173] The specific steps of the disassembly step are as follows: remove the first fixing member 18a from the dial bracket 14 so that the positioning shaft 141 can rotate; remove the third fixing member 18c from the right side plate 16; move the right side plate 16 to the rightmost end of the guide rail 17; and then take out the second developing roller semi-finished product.

[0174] In summary, firstly, the dial bracket 14, the right side plate 16, and the guide rail 17 can be collectively referred to as the reference positioning module. In the first process fixture 10a, the second process fixture 10b, or the installation fixture, the structure of the dial bracket 14, the right side plate 16, and the guide rail 17 will not change, thus eliminating manual positioning errors. The positioning shaft 141 is replaceable to adapt to developing roller shafts 21 of different diameters, and the guide rail 17 is set as a high-precision linear guide rail. Therefore, the guide rail 17 can be repeatedly positioned with an accuracy of ±0.01mm.

[0175] Second, the dial support frame 14 can be referred to as an angle control mechanism. The first dial 14a12 is a high-precision laser dial with a graduation value of 0.1°. In this way, by rotating the positioning shaft 141, it can be ensured that the installation angle deviation of each magnetic core is ≤±1° and the gap deviation between each magnetic core is ≤±0.05mm.

[0176] [Beneficial Effects]

[0177] Compared with the prior art, the developing roller magnetic core mounting fixture assembly 10 for mounting the magnetic core assembly S provided by the present invention has the following beneficial effects:

[0178] In a first aspect, the scale bracket 14 of the developing roller magnetic core mounting fixture assembly 10 includes a positioning shaft 141. The positioning shaft 141 is provided with a first positioning surface 14a23 and a second positioning surface 14b23. The first positioning surface 14a23 and the second positioning surface 14b23 are used to abut against the first positioning surface 21a1 of the driving end 21a, so that the driving end 21a is positioned and fixed, and the non-driving end 21c is fixed by the right side plate 16.

[0179] During the installation of the magnetic core assembly S, the scale line in the second standard scale line P2 is aligned with the first standard scale line P1 along the radial direction of the positioning shaft 141 to indicate whether the position of the developing roller shaft 21 is accurately installed, thus eliminating manual positioning errors.

[0180] The tooling body 12 is provided with a first reference surface 12a21. When installing the first magnetic core S1, the first side surface of the first magnetic core S1 abuts against the first reference surface 12b, so that the first magnetic core S1 is precisely positioned and accurately installed onto the radial outer surface of the roller body 21b. After the first magnetic core S1 is installed, according to the specific installation sequence of each magnetic core in the magnetic core assembly S, the first side surface / second side surface of the previously installed magnetic core is used as the reference surface of the next magnetic core to be installed, and the installation is completed in sequence.

[0181] With the above settings, during the assembly of the second developing roller finished product using the developing roller magnetic core mounting fixture assembly 10, the magnetic core assembly S can be precisely positioned and installed onto the roller body 21b, and the installation angle error of each magnetic core does not exceed 0.5°. This solves the problem of poor precision of the magnetic core assembly S in traditional manual pasting, and also reduces the defect rate of the installed magnetic core assembly S.

[0182] Secondly, the first process fixture 10a, the second process fixture 10b, or the installation fixture can simultaneously install magnetic cores on multiple developing roller shafts 21, which can improve production efficiency and reduce labor costs. When multiple developing roller shafts 21 are simultaneously installed with magnetic cores, the multiple developing roller shafts 21 are installed in the first fixture body 12a / second fixture body 12b / fixture body 12 along the front-back direction.

[0183] Thirdly, the right side plate 16 of the developing roller core mounting fixture assembly 10 can move along the guide rail 17 in the left and right directions. Therefore, the developing roller core mounting fixture assembly 10 can mount the core assembly S on the developing roller shaft 21 with different dimensions in the left and right directions. In this way, the application range of the developing roller core mounting fixture assembly 10 is widened and its versatility is enhanced.

[0184] Fourthly, the size of the first accommodating part 12a1 or the fourth accommodating part 12b1 or the accommodating space of the tooling body 12 is not limited, because the dial bracket 14 and the right side plate 16 have already positioned and fixed the developing roller shaft 21. With this configuration, the developing roller magnetic core mounting tooling assembly 10 can install the magnetic core assembly S on developing roller shafts 21 with different diameters. Therefore, the developing roller magnetic core mounting tooling assembly 10 can be applied to multiple models of developing roller shafts 21, and its versatility can be enhanced.

[0185] Fifthly, the developing roller 20 / developing roller shaft 21 of the magnetic core assembly S does not need to undergo on-machine imaging testing when using the developing roller magnetic core mounting fixture assembly 10. It is only necessary to use a gaussmeter to test the developing roller 20 during the installation process of the magnetic core assembly S, and then compare the Gauss value data obtained from the test with the standard Gauss value data to directly determine whether the assembly position of the magnetic core assembly S is accurate.

[0186] Sixthly, the developing roller core mounting fixture assembly 10 may further include a first process fixture 10a and a second process fixture 10b. The first process fixture 10a is used to operate the first process, and the second process fixture 10b is used to operate the second process. In this way, the first process and the second process can be operated simultaneously, thereby improving the installation efficiency.

Claims

1. A developing roller core mounting fixture assembly for mounting a core assembly to a developing roller shaft, the developing roller shaft including a driving end, a non-driving end, and a roller shaft body for connecting the driving end and the non-driving end, the driving end being used to receive external driving force; the mounting process includes at least a first step and a second step; with the developing roller core mounting fixture assembly placed on a horizontal plane as a reference, the length direction of the developing roller core mounting fixture assembly is the left-right direction; characterized in that... The developing roller core mounting fixture assembly includes: The tooling for the first operation is used to perform the first operation, including: First base; The first tooling body is installed on the first base and includes at least one first receiving part and at least one reference part. The first receiving part is arranged adjacent to the reference part. The first receiving part is used to receive at least a part of the roller body. The reference part is provided with a first reference surface parallel to the left and right direction. The first dial support includes a first dial support body and a first positioning shaft rotatably mounted on the first dial support body. The first dial support body includes a first dial with a second standard scale line. The first positioning shaft includes a first positioning part for positioning the drive end. The first positioning part is provided with a first standard scale line for cooperating with the second standard scale line. The first right side plate is used to fix at least the non-driving end; The first guide rail extends in the left and right direction and is used to guide the first right side plate to move in the left and right direction; The second-stage tooling is used to perform the second-stage operation, including: Second base; The second tooling body is mounted on the second base and includes at least one fourth receiving portion, which is used to receive at least a portion of the magnetic core and roller body of the first process tooling installation. The second dial support includes a second dial support body and a second positioning shaft rotatably mounted on the second dial support body. The second dial support body includes a second dial with a second standard scale line. The second positioning shaft includes a second positioning part for positioning the drive end. The second positioning part is provided with a first standard scale line for cooperating with the second standard scale line. The second right side plate is used to fix at least the non-drive end; The second guide rail extends in the left and right direction and is used to guide the first right side plate to move in the left and right direction; The magnetic core assembly includes a plurality of magnetic cores mounted to the radial outer surface of the roller body along the circumferential direction of the roller body. Each magnetic core has a mounting surface, a first side surface, and a second side surface. The mounting surface is set as the radial inner surface of the magnetic core. The first step is used to install at least one magnetic core in the magnetic core assembly, and the second step is used to install the remaining magnetic cores in the magnetic core assembly. During the first process, the first side of the magnetic core that is installed first in the first process is used to abut against the first reference surface, so that the magnetic core that is installed first is positioned. During the installation of other magnetic cores in the magnetic core assembly, the first / second side of the previously installed magnetic core serves as the reference surface for the next magnetic core to be installed.

2. A developing roller core mounting fixture assembly for mounting a core assembly to a developing roller shaft, the developing roller shaft including a driving end, a non-driving end, and a roller shaft body for connecting the driving end and the non-driving end, the driving end being used to receive external driving force; the mounting process includes at least a first step and a second step; with the developing roller core mounting fixture assembly placed on a horizontal plane as a reference, the length direction of the developing roller core mounting fixture assembly is the left-right direction; characterized in that... The developing roller core mounting fixture assembly includes: Base; The tooling body is mounted on the base and includes at least one reference part and at least one tooling receiving part. The reference part and the tooling receiving part are arranged adjacent to each other. The tooling receiving part is used to receive at least a part of the roller body. The reference part is provided with a first reference surface parallel to the left and right direction. A dial support includes a dial support body and a positioning shaft rotatably mounted on the dial support body. The dial support body includes a dial with a second standard scale line. The positioning shaft includes a positioning part for positioning the drive end. The positioning part is provided with a first standard scale line for cooperating with the second standard scale line. The right side plate is used to secure at least the non-drive end. The guide rail extends in the left and right direction and is used to guide the right side plate to move in the left and right direction; The magnetic core assembly includes multiple magnetic cores mounted to the radial outer surface of the roller body along the circumferential direction of the roller body. Each magnetic core has a mounting surface, a first side surface, and a second side surface. The mounting surface is set as the radial inner surface of the magnetic core. The first step is used to install at least one magnetic core in the magnetic core assembly, and the second step is used to install the remaining magnetic cores in the magnetic core assembly. During the first process, the first side of the magnetic core that is installed first in the first process is used to abut against the first reference surface, so that the magnetic core that is installed first is precisely positioned. During the installation of other magnetic cores in the magnetic core assembly, the first / second side of the previously installed magnetic core serves as the reference surface for the next magnetic core to be installed.

3. The developing roller core mounting fixture assembly according to claim 2, characterized in that, The reference part is movable relative to the tooling body.

4. The developing roller core mounting fixture assembly according to claim 3, characterized in that, The reference section is retractable relative to the tooling body.

5. The developing roller core mounting fixture assembly according to claim 3, characterized in that, The reference part is detachable from the tooling body.

6. The developing roller core mounting fixture assembly according to any one of claims 1 to 5, characterized in that, The plurality of magnetic cores includes a first magnetic core, a second magnetic core, a third magnetic core, a fourth magnetic core, and a fifth magnetic core, wherein at least one magnetic core is installed in the first process, the fourth and fifth magnetic cores are N-pole magnetic cores, and the first, second, and third magnetic cores are S-pole magnetic cores. The installation sequence for the first step is to install the first magnetic core first, then the fourth magnetic core; the installation sequence for the second step is to install the third magnetic core first, then the fifth magnetic core, and finally the second magnetic core, or to install the second magnetic core first, then the fifth magnetic core, and finally the third magnetic core.

7. The developing roller core mounting fixture assembly according to claim 6, characterized in that, The first positioning part includes a first positioning surface and a first D-shaped through hole; or, the second positioning part includes a second positioning surface and a second D-shaped through hole; or, the positioning part includes a positioning surface and a D-shaped through hole. The first D-shaped through hole / the second D-shaped through hole / the D-shaped through hole both penetrate in the left-right direction. In the radial direction of the positioning axis / the first positioning axis / the second positioning axis, the first positioning surface / the second positioning surface / the positioning surface and the first D-shaped through hole / the second D-shaped through hole / the D-shaped through hole are opposite to each other. The first positioning surface / the second positioning surface / the positioning surface is perpendicular to the first standard scale line.

8. A method for installing a magnetic core assembly, wherein the installation method is performed using the developing roller magnetic core installation fixture assembly described in any one of claims 1 to 7, characterized in that, The method includes: The inspection procedure includes checking whether the developing roller core mounting fixture assembly functions properly. The steps for installing the developing roller shaft are as follows: Position and fix the developing roller shaft in the developing roller core mounting fixture assembly; The steps for installing the magnetic core assembly are as follows: Install the magnetic core assembly onto the developing roller shaft; The disassembly step involves removing the developing roller shaft, after the magnetic core assembly has been installed, from the developing roller magnetic core mounting fixture assembly. During the installation of the magnetic core assembly, the first side of the magnetic core installed first in the first step is used to abut against the first reference surface, so that the magnetic core installed first is positioned; in subsequent magnetic core installations, the first / second side of the previously installed magnetic core is used as the reference surface for the next magnetic core to be installed.

9. The method for installing a magnetic core assembly according to claim 8, characterized in that, The step of installing the magnetic core assembly includes a first step and a second step, wherein the first step includes: Install the first magnetic core, apply adhesive to the mounting surface of the first magnetic core, abut the first side against the first reference surface, press the first magnetic core tightly against the radial outer surface of the roller body, and gently press both ends of the first magnetic core with both hands to maintain straight positioning for at least 3 seconds before releasing. To install the fourth magnetic core, the second side of the first magnetic core is used as the reference surface, and the first side of the fourth magnetic core is in contact with the reference surface. The installation operation is the same as the installation operation of the first magnetic core. The second process steps include: To install the third magnetic core, the second side of the fourth magnetic core is used as the reference surface, and the first side of the third magnetic core is in contact with the reference surface. The installation operation is the same as the installation operation of the first magnetic core. To install the fifth magnetic core, the second side of the third magnetic core is used as the reference surface, and the first side of the fifth magnetic core is in contact with the reference surface. The installation operation is the same as the above operation. To install the second magnetic core, the second side of the fifth magnetic core is used as the reference surface, and the first side of the second magnetic core is in contact with the reference surface. The installation operation is the same as the above operation. Alternatively, the second process step includes: To install the second magnetic core, the first side of the first magnetic core is used as the reference surface, and the second side of the second magnetic core abuts against the reference surface. The installation operation is the same as the installation operation of the first magnetic core. To install the fifth magnetic core, the first side of the third magnetic core is used as the reference surface, and the second side of the fifth magnetic core is in contact with the reference surface. The installation operation is the same as the above operation. When installing the third magnetic core, the first side of the fifth magnetic core 2 is used as the reference surface, and the second side of the second magnetic core is in contact with the reference surface. The installation operation is the same as the above operation.

10. The method for installing a magnetic core assembly according to claim 9, characterized in that, After the first process step is completed and before the second process step, rotate the positioning shaft / second positioning shaft so that the first standard scale line is aligned with the "-30°" scale line in the second standard scale line along the radial direction of the positioning shaft / second positioning shaft.

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