CN110732598A

CN110732598A - extrusion joint bearing compression molding device and method

Info

Publication number: CN110732598A
Application number: CN201911200938.7A
Authority: CN
Inventors: 姜玉红; 朱伟
Original assignee: JIANGSU CCVI BEARING CO Ltd
Current assignee: JIANGSU CCVI BEARING CO Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-01-31

Abstract

The invention provides an extrusion joint shaft contract forming device and a method, belonging to the technical field of bearing manufacturing.

Description

extrusion joint bearing compression molding device and method

Technical Field

The invention belongs to the technical field of bearing manufacturing, and particularly relates to a compression molding device and method for types of extrusion joint bearing.

Background

The extrusion joint bearing mainly comprises a bearing inner ring, a self-lubricating wear-resistant material and an outer ring, wherein the bearing inner ring and the outer ring are in sliding contact through the self-lubricating material on the outer spherical surface of the inner ring and the self-lubricating material on the inner spherical surface of the outer ring, and high dynamic load and static load are achieved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides extrusion joint axial compression molding devices and methods.

The present invention achieves the above-described object by the following technical means.

extrusion joint bearing compression molding device, the device includes the die carrier, is provided with the fixed plate on the die carrier, and the fixed plate is connected with the mould, is provided with mold core, locating hole, circular arc groove and material returned spring in the mould.

, the mold frame can move in a vertical direction.

, the stripper spring can urge the mold core to move within the mold.

, the die comprises an upper die and a lower die, wherein the upper die is connected with an upper fixing plate, the bottom of the upper die is provided with an arc groove , the lower die is connected with a lower fixing plate, and the top of the lower die is provided with an arc groove II.

, an upper die core is arranged in the upper die, a positioning hole is formed in the bottom of the upper die core, a lower die core is arranged in the lower die, and a positioning hole II is formed in the top of the lower die core.

, an upper material returning spring is arranged at the top of the upper die, and a lower material returning spring is arranged at the bottom of the lower die.

, the upper mold core is set to be T-shaped, and the lower mold core is set to be inverted T-shaped.

A method for press-forming the extrusion joint bearing by using the press-forming device comprises the following steps:

, placing the wrapping and pressing device on an oil press, fixing the die carrier by using a pressing plate of the oil press, and adjusting the pressure of the oil press;

step two: placing the product to be wrapped and pressed in the second positioning hole, starting the oil press to enable the oil press to descend until the upper die and the lower die are tightly closed, and closing the oil press;

step three: starting the oil press to enable the oil press to move upwards, wherein the material returning spring pushes the mold core to move, and the wrapped and pressed product is pushed out of the mold;

step four: and taking the wrapped and pressed product out of the wrapping and pressing forming device.

The invention has the following beneficial effects:

compared with the prior art, the device uses the die carrier, the die core and the positioning holes to accurately position and guide the to-be-wrapped product, so that the roundness and the symmetry of the wrapped product are better, the semi-finished product manufactured by the device has higher precision, the clearance dispersion is smaller in the clearance adjusting process in the later period, the product rejection rate can be greatly reduced, and the cost is saved; meanwhile, the material returning spring is arranged in the device, so that the semi-finished product after the wrapping and pressing can be pushed out of the die after the forming process is finished, the material returning operation is not required manually, the wrapping and pressing forming method is simple, the use is convenient and fast, and the production efficiency can be greatly improved.

Drawings

FIG. 1 is a sectional view of the structure of the wrapping and pressing molding apparatus according to the present invention;

FIG. 2 is a cross-sectional view of the structure of the wrapping and pressing molded product according to the present invention;

FIG. 3 is a cross-sectional view of a stamped bearing cup structure according to the present invention.

In the drawing, 1-an upper die holder, 2-an upper fixing plate, 3-an upper material returning spring, 4-an upper die core, 5-an upper die, 6-an inner ring, 7-an outer ring, 8-a lower die core, 9-a lower die, 10-a lower material returning spring, 11-a lower fixing plate, 12-a positioning hole , 13-a positioning hole II, 14 guide pillars, 15-a guide sleeve and 16-a lower die holder.

Detailed Description

The invention will be further described with reference to the drawings and the following detailed description, but the scope of the invention is not limited thereto.

As shown in figure 1, the extrusion joint bearing compression molding device comprises a die set, an upper fixing plate 2, an upper material returning spring 3, an upper die core 4, an upper die 5, a bearing inner ring 6, a bearing outer ring 7, a lower die core 8, a lower die 9, a lower material returning spring 10 and a lower fixing plate 11, wherein the die set comprises an upper die base 1, guide posts 14, guide sleeves 15 and a lower die base 16, the upper die base 1 is provided with the guide sleeves 15, the upper die base 1 and the lower die base 16 are horizontally arranged and connected through the two guide posts 14, the guide posts 14 are fixed on the lower die base 16, the ends of the guide posts respectively penetrate through the guide sleeves 15 and the upper die base 1, the upper die base 1 can move up and down on the guide posts 14 under the action of an oil press to perform compression on the bearings, the die set in the embodiment is preferably a middle guide post, the die set is precisely guided by the die set during compression molding, so that a product subjected to compression molding is high in roundness and symmetry, the product quality can be well improved, the upper fixing plate 2 is fixed on the upper die base 1, the lower fixing plate 11 is fixed on the upper material returning spring 3, the upper die core 4, the upper die core 5, the lower die core 5 and the lower die.

The upper die 5 is provided with an arc groove at the bottom for pressing a bearing outer ring 7 in a wrapping mode, the upper die 4 is in a T shape and prevents the upper die 4 from falling off from the upper die 5, the upper die 4 can move up and down in the upper die 5, the upper die 4 is provided with a positioning hole 12 at the bottom for accommodating a product to be wrapped and pressed, the upper material returning spring 3 is arranged at the top of the upper die 5 and can push the upper die 4 to move downwards and push the wrapped and pressed product out of the arc groove of the upper die 5 to facilitate material returning, the lower die 9 is provided with an arc groove II at the top for pressing the bearing outer ring 7 in a wrapping mode, the lower die 8 is in an inverted T shape and prevents the lower die 8 from falling off from the lower die 9, the lower die 8 can move up and down in the lower die 9, the positioning hole II 13 is arranged at the top of the lower die 8 and is used for placing the product to be wrapped and pressed, and the lower material returning spring 10 is arranged at the bottom of the lower die 9 and can push the lower die 8 to move upwards and push.

As shown in fig. 3, the bearing outer ring 7 used in this embodiment is a punched bearing outer ring 7, and before the wrapping, the bearing inner ring 6 needs to be placed in the bearing outer ring 7, and assembled to form a product to be wrapped.

The wrapping and pressing forming method applying the extrusion joint bearing and pressing forming device comprises the following steps:

, placing the whole wrapping and pressing device on an oil press, fixing the die carrier by using a pressing plate on the oil press, and adjusting the pressure of the die carrier to a proper value;

secondly, an operator places a product to be wrapped and pressed into a positioning hole II 13, starts an oil press to enable the oil press to descend until an upper die 5 and a lower die 9 are tightly closed, and closes the oil press, the oil press can drive an upper die holder 1 to descend in the descending process, the upper die holder 1 drives an upper fixing plate 2 and the upper die 5 to descend simultaneously, a bearing is extruded, the upper half part of a bearing outer ring 7 enters an arc groove in the bottom of the upper die 5, an upper die core 4 moves upwards under the extrusion of a bearing inner ring 6 until the upper die core 4 reaches the top of the upper die 5, the lower half part of the bearing outer ring 7 enters an arc groove II in the top of the lower die 9, a lower die core 8 moves downwards under the extrusion of the bearing inner ring 6 until the lower die core 8 reaches the bottom of the lower die 9, so that the wrapping and pressing forming of the bearing is realized, as shown in figure 2, the bearing outer ring 7 tightly holds the bearing inner ring 6 to be unable to slide through the wrapping;

step three, after the wrapping and pressing process is finished, starting an oil press to enable the oil press to move upwards to drive an upper die holder 1 to move upwards, further, the upper die holder 1 drives an upper fixed plate 2 and an upper die 5 to move upwards simultaneously, an upper material returning spring 3 pushes an upper die core 4 downwards to push a wrapped and pressed product out of an arc groove of the upper die 5, a lower material returning spring 10 pushes a lower die core 8 upwards to push the wrapped and pressed product out of an arc groove II of a lower die 9;

step four: the operator removes the packed product from the device.

The examples mentioned above, below, top, bottom, ascending, descending, ascending and descending are all the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the essence of the present invention.

Claims

The extrusion joint bearing compression molding device is characterized by comprising a die carrier, wherein a fixed plate is arranged on the die carrier and connected with a die, and a die core, a positioning hole, an arc groove and a material returning spring are arranged in the die.
2. The extrusion joint bearing press molding apparatus as claimed in claim 1, wherein the mold frame is movable in a vertical direction.
3. The extrusion articulating bearing compression molding apparatus of claim 2, wherein the stripper spring urges the core to move within the mold.
4. The extrusion joint bearing compression molding device of claim 3, wherein the mold comprises an upper mold (5) and a lower mold (9), the upper mold (5) is connected with the upper fixing plate (2), the bottom of the upper mold (5) is provided with an arc groove , the lower mold (9) is connected with the lower fixing plate (11), and the top of the lower mold (9) is provided with an arc groove two.
5. The extrusion joint bearing compression molding device of claim 4, wherein, an upper mold core (4) is arranged in the upper mold (5), a positioning hole (12) is arranged at the bottom of the upper mold core (4), a lower mold core (8) is arranged in the lower mold (9), and a second positioning hole (13) is arranged at the top of the lower mold core (8).
6. The extrusion joint bearing compression molding device of claim 5, wherein the top of the upper die (5) is provided with an upper material returning spring (3), and the bottom of the lower die (9) is provided with a lower material returning spring (10).
7. The extrusion-joint bearing compression molding machine as claimed in claim 5, wherein the upper core (4) is set in a "T" shape and the lower core (8) is set in an inverted "T" shape.
8, press molding method using the press bearing according to any one of claims 1 to 7, , comprising the steps of:

, placing the wrapping and pressing device on an oil press, fixing the die carrier by using a pressing plate of the oil press, and adjusting the pressure of the oil press;

step two: placing a product to be wrapped and pressed in the second positioning hole (13), starting the oil press to enable the oil press to descend until the upper die (5) and the lower die (9) are tightly closed, and closing the oil press;

step three: starting the oil press to enable the oil press to move upwards, wherein the material returning spring pushes the mold core to move, and the wrapped and pressed product is pushed out of the mold;

step four: and taking the wrapped and pressed product out of the wrapping and pressing forming device.