Magnetic bushing assembly ram

Abstract

A bushing assembly press head with magnetism comprises a press head, a sleeve rod and a magnetic attraction assembly. The press head comprises a press head body, a connecting part and a pressing part. The pressing part is an annular plane, and a circular groove and a threaded hole are arranged at the center of the annular plane. The sleeve rod comprises a rod body, an insertion part and a fixing hole. The magnetic attraction assembly comprises a magnetic attraction insertion hole and a magnetic attraction piece. Compared with the prior art, the bushing assembly press head with magnetism provided by the utility model is used for adsorbing the bushing by adopting the magnetic attraction piece made of a strong magnetic material, reduces the requirement for the consistency of the joint of the bushing, and the magnetic attraction piece does not need to be replaced regularly, thereby reducing the maintenance cost. The magnetic attraction piece is installed by arranging the magnetic attraction insertion hole, and the structure is simple, the operation is convenient, the assembly efficiency is high, and the magnetic force can be adjusted according to the bushing with different joint sizes. Moreover, the number of the magnetic attraction pieces can be increased according to the actual production requirement, the magnetic force of adsorption is improved, and the stability of the bushing during the assembly process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of press-fitting equipment technology, and in particular to a magnetic bushing fitting press head. Background Technology

[0002] In the field of mechanical assembly, the assembly accuracy of bushings directly affects the performance and lifespan of products. Current bushing assembly methods primarily utilize hydraulic equipment to press the bushings into the equipment.

[0003] For example, Chinese utility model publication CN201769035U mentions a bushing assembly device, including a workbench on which a hydraulic cylinder I is mounted. The piston rod of hydraulic cylinder I is connected to one end of a push rod via a universal coupling. The push rod is supported by a bearing mounted on a fixed base and passes through a guide hole in the fixed base. A push rod head is mounted at the front end of the push rod, and a clamping base plate is located below the push rod head. A hydraulic cylinder II is mounted on one side of the clamping base plate, and a pressure plate is mounted on the lever of hydraulic cylinder II. A wedge is mounted on the other side of the clamping base plate, and the wedge is connected to a wrench via a spring-loaded pull rod. The wrench is mounted on a rotating shaft of a wrench holder. This utility model allows for the assembly and assembly of bushings using assembly equipment, saving manpower, reducing the labor intensity of operators, improving production efficiency, and increasing the assembly accuracy of bushing assembly.

[0004] Traditional bushing assembly methods primarily employ ball bearing assembly heads and O-ring assembly heads. Ball bearing assembly heads achieve positioning through the contact between the ball bearing and the bushing. Their advantage is their simple structure, but they require high consistency in the bushing joints; joints that are too large or too small will lead to assembly failure. O-ring assembly heads achieve bushing positioning through the elastic deformation of the O-ring. Their advantage is that they have lower requirements for bushing joint consistency, but the O-rings are prone to wear and aging, requiring periodic replacement; otherwise, the assembly effect will be affected. Summary of the Invention

[0005] In view of this, the present invention provides a magnetic bushing fitting pressure head to solve the above-mentioned technical problems.

[0006] A magnetic bushing fitting pressure head includes a pressure head, a fitting rod disposed on the pressure head, and a magnetic attraction assembly disposed on the pressure head. The pressure head includes a pressure head body, a connecting portion disposed at one end of the pressure head body, and a pressing portion located on the pressure head body away from the connecting portion. The pressing portion is the end face of the pressure head body away from the connecting portion. The pressing portion is an annular plane with a circular groove at its center and a threaded hole at the bottom of the groove. The fitting rod includes a rod body, an insertion portion concentrically disposed with the rod body, and a fixing hole disposed at the center of the rod body. The diameter of the insertion portion is smaller than the diameter of the rod body. The fitting rod is concentrically disposed with the pressure head body. The fixing hole is a through hole disposed at the center of the rod body, and has a circular groove at the end away from the insertion portion for concealing a nut. The position of the fixing hole coincides with the threaded hole. The magnetic attraction assembly includes multiple magnetic insertion holes disposed on the pressure head body and multiple magnetic elements disposed within the magnetic insertion holes. The magnetic insertion hole is a through hole provided on the pressure head body, and the opening direction is the axial direction of the pressure head body. The shape of the magnetic suction member is consistent with the shape of the magnetic insertion hole. When the magnetic suction member is inserted into the magnetic insertion hole, the distance from the magnetic suction member to the center of the pressure head body is less than the radius of the rod.

[0007] Furthermore, the pressure head body is a cylindrical structure connected to a hydraulic device.

[0008] Furthermore, the connecting part is a cylindrical protrusion concentrically arranged with the pressure head body, integrally formed with the pressure head body, the diameter of the connecting part is smaller than the diameter of the pressure head body, and a positioning hole is provided on the connecting part.

[0009] Furthermore, the rod is a cylindrical structure, and the axial length of the rod is the same as the length of the bushing.

[0010] Furthermore, the diameter of the rod is smaller than the inner diameter of the bushing.

[0011] Furthermore, the diameter of the rod is the same as the inner diameter of the bushing.

[0012] Furthermore, the insertion part is a cylindrical protrusion concentrically arranged with the rod body and integrally formed with the rod body.

[0013] Furthermore, the four magnetic insertion holes are arranged in a circular array with the central axis of the pressure head as the center.

[0014] Compared with existing technologies, the magnetic bushing assembly head provided by this utility model uses a magnetic suction component made of a strong magnetic material to attract the bushing, reducing the requirements for bushing seam consistency. Furthermore, the magnetic suction component does not require periodic replacement, reducing maintenance costs. The magnetic suction component is installed through a magnetic insertion hole, resulting in a simple structure, convenient operation, high assembly efficiency, and easy adjustment of the magnetic force according to bushings with different seam sizes, significantly improving customer satisfaction. Moreover, the number of magnetic suction components can be increased according to actual production needs to enhance the magnetic force and ensure the bushing remains stable during assembly. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of a magnetic bushing fitted with a pressure head, which is provided for this utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the magnetic bushing fitted with a pressure head in the upward direction. Detailed Implementation

[0017] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0018] like Figures 1 to 2 The diagram shows a structural schematic of the magnetic bushing fitting pressure head provided by this utility model. The magnetic bushing fitting pressure head includes a pressure head 10, a fitting rod 20 disposed on the pressure head 10, and a magnetic attraction component 30 disposed on the pressure head 10. It is conceivable that the magnetic bushing fitting pressure head also includes other functional modules such as bushings for attraction, upper molds for setting the pressure head, etc., which are technologies known to those skilled in the art and will not be described in detail here.

[0019] The pressure head 10 includes a pressure head body 11, a connecting portion 12 disposed at one end of the pressure head body 11, and a pressing portion 13 located on the pressure head body 11 away from the connecting portion 12.

[0020] The pressure head body 11 is a cylindrical structure connected to a hydraulic device, and the bushing is pressed into the device by the action of the hydraulic device.

[0021] The connecting part 12 is a cylindrical protrusion concentrically arranged with the pressure head body 11, and may be integrally formed with the pressure head body 11. The diameter of the connecting part 12 is smaller than the diameter of the pressure head body 11, and a positioning hole is provided on the connecting part 12 to facilitate connecting the pressure head 10 to a hydraulic device.

[0022] The pressing part 13 is the end face of the pressing head body 11 away from the connecting part 12, used to press against and press the bushing fitted on the connecting part 12 into the equipment. The pressing part 13 is an annular plane with a circular groove 131 at its center and a threaded hole 132 at the bottom of the circular groove 131, so that the fitting rod 20 can be inserted into the circular groove 131 and fixed by fasteners such as hexagon socket screws.

[0023] The set rod 20 includes a rod body 21, an insertion part 22 concentrically arranged with the rod body 21, and a fixing hole 23 provided at the center of the rod body 21.

[0024] The rod 21 is a cylindrical structure. The size of the rod 21 is set according to the size of the bushing to be installed. Specifically, the axial length of the rod 21 is the same as the length of the bushing, and the diameter of the rod 21 is smaller than the inner diameter of the bushing. Preferably, the diameter of the rod 21 is the same as the inner diameter of the bushing.

[0025] The insertion part 22 is a cylindrical protrusion concentrically arranged with the rod body 21, and may be integrally formed with the rod body 21. The diameter of the insertion part 22 is smaller than the diameter of the rod body 21, and its size is adapted to the size of the circular groove 131 so that it can be inserted into the circular groove 131, and the sleeve rod 20 and the pressure head body 11 are concentrically arranged.

[0026] The fixing hole 23 is a through hole located at the center of the rod body 21, and a circular groove is provided at the end away from the insertion part 22 to hide the nut. The position of the fixing hole 23 coincides with the threaded hole 132, so that the screw can be inserted and tightened in the threaded hole 132.

[0027] The magnetic suction assembly 30 includes a plurality of magnetic suction holes 31 disposed on the pressure head body 11, and a plurality of magnetic suction elements 32 disposed within the magnetic suction holes 31.

[0028] The magnetic insertion hole 31 is a through hole provided on the pressure head body 11, and the opening direction is the axial direction of the pressure head body 11. When the magnetic suction member 32 is inserted into the magnetic insertion hole 31, a rod-shaped object can be inserted into the magnetic insertion hole 31 to push the magnetic suction member 32 to adjust its position, thereby adjusting the magnetic force to adapt to bushings with different joint sizes.

[0029] In this embodiment, four magnetic insertion holes 31 are provided, arranged in a circular array with the central axis of the pressure head 10 as the center, so as to provide a stable attraction force to the bushing sleeved on the sleeve rod 20. Accordingly, the number of magnetic insertion holes 31 and magnetic elements 32 can be increased or decreased according to the mass of the bushing.

[0030] In addition, the opening of the magnetic insertion hole 31 can be chamfered to facilitate the insertion and installation of the magnetic component 32.

[0031] The magnetic suction element 32 is a magnetic component installed within the magnetic insertion hole 31. It can be made of a strong magnetic material such as neodymium iron boron (NdFeB) to ensure sufficient and stable attraction force. The shape of the magnetic suction element 32 is consistent with the opening shape of the magnetic insertion hole 31, so that the magnetic suction element 32 is not easily moved when inserted into the magnetic insertion hole 31. When the magnetic suction element 32 is inserted into the magnetic insertion hole 31, the distance from the magnetic suction element 32 to the center of the pressure head body 11 is less than the radius of the rod 21, so that the rod 21 will block the opening of the magnetic insertion hole 31, preventing the magnetic suction element 32 from detaching from the magnetic insertion hole 31.

[0032] Compared with existing technologies, the magnetic bushing assembly head provided by this utility model uses a magnetic suction element 32 made of a strong magnetic material to attract the bushing, reducing the requirements for bushing seam consistency. Furthermore, the magnetic suction element 32 does not require periodic replacement, reducing maintenance costs. The magnetic suction element 32 is installed by setting the magnetic insertion hole 31, resulting in a simple structure, convenient operation, high assembly efficiency, and easy adjustment of the magnetic force according to bushings with different seam sizes, significantly improving customer satisfaction. Moreover, the number of magnetic suction elements 32 can be increased according to actual production needs to enhance the magnetic force and ensure the bushing remains stable during assembly.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A magnetic bushing fitting pressure head, characterized in that: The magnetic bushing fitting head includes a pressure head, a fitting rod disposed on the pressure head, and a magnetic attraction assembly disposed on the pressure head. The pressure head includes a pressure head body, a connecting portion disposed at one end of the pressure head body, and a pressing portion located on the pressure head body away from the connecting portion. The pressing portion is the end face of the pressure head body away from the connecting portion, and the pressing portion is an annular plane with a circular groove at its center and a threaded hole at the bottom of the circular groove. The fitting rod includes a rod body, an insertion portion concentrically disposed with the rod body, and a fixing hole disposed at the center of the rod body. The diameter of the insertion portion is small. Regarding the diameter of the rod body, the sleeve rod and the pressure head body are concentrically arranged. The fixing hole is a through hole located at the center of the rod body, and a circular groove for hiding the nut is provided at the end away from the insertion part. The position of the fixing hole coincides with the threaded hole. The magnetic suction assembly includes multiple magnetic suction holes on the pressure head body and multiple magnetic suction elements disposed in the magnetic suction holes. The magnetic suction holes are through holes on the pressure head body, and the opening direction is the axial direction of the pressure head body. The shape of the magnetic suction element is consistent with the opening shape of the magnetic suction hole. When the magnetic suction element is inserted into the magnetic suction hole, the distance from the magnetic suction element to the center of the pressure head body is less than the radius of the rod body.

2. The magnetic bushing fitting pressure head as described in claim 1, characterized in that: The pressure head body is a cylindrical structure connected to a hydraulic device.

3. The magnetic bushing fitting pressure head as described in claim 1, characterized in that: The connecting part is a cylindrical protrusion concentrically arranged with the pressure head body and integrally formed with the pressure head body. The diameter of the connecting part is smaller than the diameter of the pressure head body, and a positioning hole is provided on the connecting part.

4. The magnetic bushing fitting pressure head as described in claim 1, characterized in that: The rod is a cylindrical structure, and the axial length of the rod is the same as the length of the bushing.

5. The magnetic bushing fitting pressure head as described in claim 4, characterized in that: The diameter of the rod is smaller than the inner diameter of the bushing.

6. The magnetic bushing fitting pressure head as described in claim 4, characterized in that: The diameter of the rod is the same as the inner diameter of the bushing.

7. The magnetic bushing fitting pressure head as described in claim 1, characterized in that: The insertion part is a cylindrical protrusion concentrically arranged with the rod body and integrally formed with the rod body.

8. The magnetic bushing fitting pressure head as described in claim 1, characterized in that: The four magnetic insertion holes are arranged in a circular array with the central axis of the pressure head as the center.

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