CN212163096U - Device for pouring oil-containing straight bearing into iron shell - Google Patents

Abstract

The utility model discloses a device of going into iron-clad with oily straight body bearing beer, lower bolster including the cope match-plate pattern that can reciprocate and correspond with the cope match-plate pattern, be equipped with the pressure head towards the lower bolster on the cope match-plate pattern, it is equipped with reaming device to correspond the pressure head on the lower bolster, reaming device is including fixed solid fixed ring that sets up on the lower bolster, vertical fixed setting is in the fixed ring and the upper end is used for placing the reaming needle of oily straight body bearing, gu fixed ring goes up the cover and is equipped with the stripper ring that is used for placing the iron-clad and can reciprocate, the thimble that can reciprocate has been passed on the lower bolster, the upper end butt of thimble is in the stripper ring bottom, the lower bolster bottom still is equipped with the elastic mechanism who is. The utility model discloses a driving pressure head pushes down the iron-clad, orders about the iron-clad and moves down and make the straight body bearing beer of oiliness go into the bearing of iron-clad indoor to carry out the reaming to the straight body bearing of oiliness by the reaming, rethread elastic mechanism orders about thimble jack-up discharge ring after the completion and can easily take out the iron-clad, has simple and convenient advantage.

Description

Device for pouring oil-containing straight bearing into iron shell

Technical Field

The utility model relates to a micromotor field of making, in particular to with oily straight body bearing beer go into device of iron-clad.

Background

In a micro motor, a ball bearing and an oil-retaining bearing (sliding bearing) are generally adopted, and the oil-retaining bearing is used according to different use occasions and purposes of the motor, wherein the oil-retaining bearing comprises an oil-retaining ball bearing and an oil-retaining straight bearing.

However, in the process of taking out the bearing of the micro motor, the oil bearing is mostly taken out, and the ball bearing is not taken out.

The reasons for the unusual use of ball bearings are the following:

1. the motor is uneconomical to use and high in price, and is mainly used for a motor with high added value; such as brushless motors, servo motors, etc.;

2. the assembly process is complex and difficult to control;

3. the outer diameter and the inner diameter of the inner ring are both references, and the outer ring and the inner ring cannot be stressed (cannot collide); outer ring: the bearing is contacted with the inner edge of the bearing chamber; inner ring: the bearing is in contact with the shaft rim.

The reasons for using oil-impregnated bearings in most cases are as follows:

1. the price is low;

2. the processing is convenient;

3. the motor is not afraid of extrusion, has complex and various shapes and is convenient for the requirement of diversified design of the motor.

Therefore, in the process of taking out the bearing of the micro motor, the oil-containing bearing is often taken out.

In the taking of the oil-retaining bearing, compared with the motor operation angle and the oil film forming condition, the oil-retaining ball bearing and the oil-retaining straight body bearing also have different advantages and disadvantages:

oil-impregnated ball bearing: when the shaft runs, oil is emitted outwards, so that an oil film is formed, the produced oil film is good, and the shaft floats in the middle of the bearing hole; the bearing clamp is fixed in the bearing chamber, and the fixed swing force is smaller.

Oil-retaining straight bearing: when the aperture of the bearing is small, the rotating clearance between the shaft and the bearing is small and easy to clamp, and an oil film is not easy to form. When the aperture of the bearing is large, the rotating clearance between the shaft and the bearing is large, the oil filling is insufficient, and the pressure of an oil film is insufficient, so that the shaft cannot float; when the oil-containing straight bearing is subjected to beer, a hole expanding needle is needed for expanding the hole, and a beer entering clamp is relatively complex. After the oil-containing straight bearing is manufactured, the inner diameter, the roundness and the roughness of a hole in the bearing need to be noticed, and the three items have great influence on the mechanical rotation and the noise of the motor.

The differences between the oil-impregnated ball bearing and the oil-impregnated straight bearing are shown in table 1 below:

TABLE 1

Related features	Oil-containing ball bearing	Oil-containing straight bearing
			Verticality	The inclination can be adjusted	The inclination is not adjustable
Retention force	Easy to be pulled out	Is not easy to pull out
			Impact resistance	Small impact resistance	High impact resistance
Pore diameter	Easy to control	Not easily controlled, determined by reaming
			Roundness and roughness	Easy to control	Not easily controlled, determined by reaming
Generating oil film	Easily generate oil film	Is not easy to generate oil film
			Motor sound	Good taste	Difference (D)
Economy of use	High machining precision and high cost	Easy to process and relatively cheap

The data show that: in the motor manufacturing industry, the oil-containing straight body bearing is the cheapest in manufacturing cost and the most widely used; however, when the oil-containing straight bearing is pressed into the bearing chamber, it is also the most difficult to produce a device for pressing the oil-containing straight bearing into the bearing chamber.

However, the prior art lacks a simple and easy-to-use device for injecting the oil-containing straight bearing into the bearing chamber.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a go into device of iron-clad with straight body bearing beer of oiliness, aim at solving among the prior art and be difficult for going into the problem of bearing room with straight body bearing beer of oiliness.

The utility model provides a device that iron-clad was gone into to straight body bearing beer of oiliness, including the cope match-plate pattern that can reciprocate and the lower bolster that corresponds with the cope match-plate pattern, be equipped with the pressure head towards the lower bolster on the cope match-plate pattern, it is equipped with reaming device to correspond the pressure head on the lower bolster, reaming device is used for placing the reaming needle of straight body bearing of oiliness in the retaining ring and upper end including fixed solid fixed ring, the vertical fixed setting that sets up on the lower bolster, gu the fixed ring goes up the cover and is equipped with the stripper ring that is used for placing the iron-clad and can reciprocate, the thimble that can reciprocate has been passed on the lower bolster, the upper end butt of thimble is in the stripper ring bottom, the lower bolster bottom still is equipped with the elastic mechanism who is used for jacking the thimble, be provided with between stripper ring and the lower bolster and be used.

Furthermore, the elastic mechanism comprises a pull rod vertically fixed at the bottom of the lower template, an ejector plate fixed at the lower end of the pull rod, an ejector plate sleeved at the upper end of the pull rod and capable of moving up and down, and an ejector bow arranged between the ejector plate and used for jacking the ejector plate, the ejector pin is arranged between the discharge ring and the ejector plate, and the lower end of the ejector pin is abutted to the top surface of the ejector plate.

Furthermore, a communicating groove for the thimble to pass through is formed in the lower template, the outer wall of the lower end of the thimble protrudes to form a limiting end, and a limiting groove matched with the limiting end is formed in one end, in the inner wall direction, of the bottom surface of the lower template in the communicating groove.

Furthermore, the limiting mechanism is a demoulding screw, the tail end of the demoulding screw is fixed in the discharging ring in a threaded manner, and the end head of the demoulding screw penetrates through the lower template and moves up and down in the lower template.

Furthermore, the outer wall of the discharging ring is provided with a groove along the vertical direction, and the inner wall of the iron shell is assembled and positioned with the groove through the arranged convex ribs.

Further, the reaming needle head part is arranged in a shrinking mode inwards.

Furthermore, the outer wall of the reaming needle is provided with a fixing clamping groove, and the inner wall of the fixing ring is provided with a clamping block clamped into the fixing clamping groove.

Furthermore, a punching needle is vertically arranged in the fixing ring, the bottom end of the punching needle is fixed at the bottom of the fixing ring, and the top end of the punching needle is abutted against the bottom end of the reaming needle.

Furthermore, a guide pillar is fixedly arranged on the lower template, a compression spring is sleeved on the guide pillar and is positioned between the upper template and the lower template, the upper template is in sliding connection with the guide pillar through a guide sleeve, and a limiting plate is arranged at the upper end of the guide pillar.

Furthermore, a lower limiting column is arranged on the lower template, and an upper limiting column corresponding to the lower limiting column is arranged on the upper template.

The embodiment of the utility model provides a device of iron-clad with oily straight body bearing beer goes into, including the cope match-plate pattern that can reciprocate and the lower bolster that corresponds with the cope match-plate pattern, be equipped with the pressure head towards the lower bolster on the cope match-plate pattern, it is equipped with reaming device to correspond the pressure head on the lower bolster, reaming device is including fixed solid fixed ring, the vertical fixed setting that set up on the lower bolster in the solid fixed ring and the upper end is used for placing the reaming needle of oily straight body bearing, gu fixed ring goes up the cover and is equipped with the stripper ring that is used for placing the iron-clad and can reciprocate, it has the thimble that can reciprocate to pass on the lower bolster, the upper end butt of thimble is in the stripper ring bottom, the lower bolster bottom still is equipped with the elastic mechanism who is used for jacking the thimble, be provided with between stripper ring and the lower bolster and be used for the. The embodiment of the utility model provides a push down the iron-clad through the drive ram, order about the iron-clad and move down and make the straight body bearing beer of oiliness go into the bearing of iron-clad indoor to carry out the reaming to the straight body bearing of oiliness by the reaming, thereby accomplish the process of going into the iron-clad with the straight body bearing beer of oiliness, then rethread elastic mechanism orders about thimble jack-up discharge ring, makes the iron-clad bounce, makes taking out that the iron-clad can relax, has simple and convenient advantage.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic view of an overall structure provided by an embodiment of the present invention;

fig. 2 is a schematic front view of the structure according to the embodiment of the present invention;

fig. 3 is a schematic front sectional view of the unassembled structure according to an embodiment of the present invention;

fig. 4 is a schematic side view of a cross-sectional structure provided in the embodiment of the present invention;

fig. 5 is a schematic view of a front cross-sectional structure during assembly according to an embodiment of the present invention;

fig. 6 is a schematic side view of a cross-sectional structure during assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural view of the reamer needle according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a device for inserting an oil-containing straight bearing 3 into an iron shell 4, including an upper mold plate 1 capable of moving up and down and a lower mold plate 2 corresponding to the upper mold plate 1, wherein a pressing head 11 facing the lower mold plate 2 is disposed on the upper mold plate 1, a hole enlarging device 21 (refer to fig. 4) is disposed on the lower mold plate 2 corresponding to the pressing head 11, the hole enlarging device 21 includes a fixing ring 211 fixedly disposed on the lower mold plate 2, a hole enlarging needle 212 vertically and fixedly disposed in the fixing ring 211 and having an upper end for placing the oil-containing straight bearing 3, a discharge ring 5 for placing the iron shell 4 and capable of moving up and down is sleeved on the fixing ring 211, a thimble 22 capable of moving up and down is passed through the lower mold plate 2, an upper end of the thimble 22 abuts against a bottom of the discharge ring 5, an elastic mechanism 6 for ejecting the thimble 22 is further disposed at the bottom of the, and a limiting mechanism used for limiting the moving range of the discharging ring 5 is arranged between the discharging ring 5 and the lower template 2.

With reference to fig. 5, in this embodiment, the upper mold plate 1 is driven to move downward to drive the pressing head 11 to press the iron shell 4 downward, so that the iron shell 4 moves downward along with the discharging ring 5 and abuts against the oil-containing straight bearing 3 placed on the broaching needle 212, the oil-containing straight bearing 3 is punched into the bearing chamber of the iron shell 4 in the process of continuous pressing, and the broaching needle 212 reams the oil-containing straight bearing 3, so that the process of punching the oil-containing straight bearing 3 into the iron shell 4 can be completed; in the process of downward moving the discharging ring 5, as shown in fig. 6, the ejector pins 22 are pressed to move downward and compress the elastic mechanisms 6, after the external force applied to the upper die plate 1 disappears, the ejector pins 22 are driven by the elastic force of the elastic mechanisms 6 to jack the discharging ring 5 upwards, so that the iron shell 4 is pushed up, the iron shell 4 can be easily taken out, the whole assembling process is completed, the distance range of upward movement of the discharging ring 5 is limited by the limiting mechanisms, and the discharging process is kept stable. The device provided by the utility model have the simple and convenient advantage of assembly.

In an embodiment, the elastic mechanism 6 includes a pull rod 61 vertically fixed at the bottom of the lower die plate 2, an ejector plate 62 fixed at the lower end of the pull rod 61, an ejector plate 64 sleeved at the upper end of the pull rod 61 and capable of moving up and down, and an ejector 63 disposed between the ejector plate 62 and the ejector plate 64 and used for ejecting the ejector plate 64, the ejector pin 22 is disposed between the discharge ring 5 and the ejector plate 64, and the lower end of the ejector pin 22 abuts against the top surface of the ejector plate 64.

Referring to fig. 5 and 6, in this embodiment, the discharging ring 5 moves downward under the pressure of the pressing head 11, the discharging ring 5 moves downward to drive the ejector pins 22 to move downward and press the ejector plates 64, so that the ejector plates 64 compress the slingshot 63, after the pressure of the pressing head 11 disappears, the resilience of the slingshot 63 causes the ejector plates 64 to reset upward and eject the ejector pins 22, the ejector pins 22 are ejected upward to drive the discharging ring 5 to be ejected, so that the iron shell 4 is ejected, and the iron shell 4 can be taken out and the discharging process is completed.

Further, the lower end of the pull rod 61 is fixed on the catapult plate 62 through threads, the catapult plate 62 can be screwed out, the catapult 63 is replaced, and the proper catapult 63 is selected in the discharging process according to different assembling conditions, such as the high-elasticity catapult 63 is selected in the discharging process when large discharging force is needed.

With reference to fig. 6, in an embodiment, the lower mold plate 2 is provided with a communicating groove 23 for the thimble 22 to pass through, an outer wall of the lower end of the thimble 22 protrudes to form a limiting end 221, and one end of the bottom surface of the lower mold plate 2 of the communicating groove 23 along an inner wall direction is provided with a limiting groove 231 matched with the limiting end 221.

In this embodiment, the communicating groove 23 can provide a guiding effect for the up-and-down movement process of the thimble 22, and the limiting groove 231 is further provided to cooperate with the limiting end 221 of the thimble 22 to limit the highest position of the upward jacking of the thimble 22, so that the stability of the thimble 22 when jacking the discharge plate for discharging is further improved.

In one embodiment, the limiting mechanism is a demolding screw 7, the end and the tail of the demolding screw 7 are fixed in the discharging ring 5 in a threaded manner, and the end of the demolding screw 7 penetrates through the lower template 2 and moves up and down in the lower template 2.

In this embodiment, the end of the demolding screw 7 is in the lower die plate 2, the end tail of the demolding screw penetrates through the lower die plate 2 upwards and then is fixed at the bottom of the discharging ring 5 in a threaded manner, in the process that the discharging ring 5 is jacked up to move upwards, the demolding screw 7 moves upwards synchronously, the lower die plate 2 can limit the end of the demolding screw 7 so as to limit the maximum distance of the upward movement of the discharging ring 5, and the discharging ring 5 can be prevented from being jacked up excessively when the resilience force of the elastic mechanism 6 is too large, so that demolding is caused.

Referring to fig. 1, in an embodiment, the outer wall of the discharge ring 5 is provided with a groove 51 along the vertical direction, and the inner wall of the iron shell 4 is positioned by the rib provided to fit into the groove 51.

In this embodiment, in the process of injecting the oil-containing straight bearing 3 into the iron shell 4, it is very necessary to maintain the stability of the iron shell 4, so the groove 51 is formed in the outer wall of the discharge ring 5, after the iron shell 4 is sleeved into the discharge ring 5, the iron shell 4 can be positioned by assembling the convex rib of the inner wall of the iron shell 4 with the groove 51, and thus the oil-containing straight bearing 3 can be accurately injected into the iron shell 4.

Further, the discharge ring 5 can be adapted to the iron shell 4 of different types, so as to position the iron shell 4.

In one embodiment, the head of the reamer 212 is set inwardly.

In this embodiment, the reaming needle 212 is used for reaming the oil-containing straight bearing 3, the middle hole of the oil-containing straight bearing 3 is correspondingly placed at the head of the reaming needle 212, and in the process of pressing the iron shell 4 downwards to drive the oil-containing straight bearing 3 into the iron shell 4 and then pressing downwards, the reaming needle 212 is fixed, so that the oil-containing straight bearing 3 moves downwards along the head of the reaming needle 212, the diameter of the reaming needle 212 corresponding to the middle hole of the oil-containing straight bearing 3 is increased, and the middle hole of the oil-containing straight bearing 3 is reamed, so as to ensure that the inner hole of the oil-containing straight bearing 3 meets the requirements of the production process.

Further, the reaming needle 212 can be adapted to the oil-containing straight bearing 3 of different types, so as to meet the reaming requirements of the oil-containing straight bearing 3 of different types.

Further, the inclination of the inward contraction of the head of the reamer 212 is set to 0.5 °, and the length of the inclination (i.e., the inclined portion) is generally set to 4mm, 6mm, 8mm, or 10mm depending on the thickness of the oil-impregnated straight bearing 3 and the design and processing of the device.

The length of the reaming part of the reaming needle 212 is generally designed to be 12-15mm, and the roughness Ra of the reaming part of the reaming needle 212 is as follows: 0.7um, roundness: 0.7 um.

The diameter of the reaming part of the reaming needle 212 is set according to the requirements of the normal tight fit of the iron shell 4, the iron cover or the end cover bearing chamber and the oil-containing straight bearing 3, the roundness also meets the roundness requirement of the bearing behind the oil-containing straight bearing 3, and the diameter of the reaming part is the tolerance of 3-4um on the engineering specification of the oil-containing straight bearing 3; for example: if the engineering specification phi 3.180+0.005/-0, the diameter of reamer needle 212 is phi 3.188-phi 3.189 mm.

The inward shrinking part of the head of the reaming needle 212 is connected with the reaming part of the reaming needle 212, and the connection part is smooth, so that the inner hole of the oil-containing straight bearing 3 can be prevented from being scratched.

Referring to fig. 7, in an embodiment, the outer wall of the reamer 212 is provided with a fixing groove 2121, and the inner wall of the fixing ring 211 is provided with a block clamped in the fixing groove 2121.

In this embodiment, after the reaming needle 212 is installed in the fixing ring 211, the reaming needle 212 can be fixed by clamping the fixture block in the fixing clamp slot 2121.

In an embodiment, a punching needle 2111 is vertically arranged in the fixing ring 211, the bottom end of the punching needle 2111 is fixed at the bottom of the fixing ring 211, and the top end of the punching needle is abutted against the bottom end of the reaming needle 212.

In this embodiment, in the process of reaming the oil-containing straight bearing 3, the reaming needle 212 is subjected to downward pressure, and in order to prevent the reaming needle 212 from being subjected to excessive downward pressure to move, a punching needle 2111 is further disposed in the fixing ring 211, and the punching needle 2111 occupies a downward movement space of the reaming needle 212 and receives the downward pressure applied to the reaming needle 212, so that the reaming needle 212 is kept fixed.

In an embodiment, a guide post 24 is fixedly arranged on the lower template 2, a compression spring 241 is sleeved on the guide post 24, the compression spring 241 is located between the upper template 1 and the lower template 2, the upper template 1 is slidably connected with the guide post 24 through a guide sleeve 242, and a limit plate 243 is arranged at the upper end of the guide post 24.

Referring to fig. 3 and 5, in this embodiment, two guide posts 24 are provided and symmetrically arranged on the lower die plate 2 with the hole enlarging device 21 as the center, the two ends of the upper die plate 1 slide on the two guide posts 24 through guide sleeves 242 respectively, when no external force is applied to the upper die plate 1, the whole device is in a free state, the compression spring 241 sleeved on the guide post 24 is also in a free state, when an external force is applied to the upper mold plate 1, the upper mold plate 1 is pressed downward, the guide sleeve 242 is driven to compress the compression spring 241, the process of pouring the oil-containing straight bearing 3 into the iron shell 4 and expanding the hole can be started, when the external force applied to the upper template 1 disappears, the compression spring 241 rebounds and resets to drive the upper template 1 to move upwards and reset, and a limit plate 243 is arranged at the upper end of the guide post 24 to limit the upper die plate 1 during moving upwards, so that the upper die plate 1 is prevented from being ejected out of the guide post 24 by the resilience of the compression spring 241.

Referring to fig. 2, in an embodiment, the lower template 2 is provided with a lower limiting column 25, and the upper template 1 is provided with an upper limiting column 12 corresponding to the lower limiting column 25.

In this embodiment, through the upper limit post 12 and the lower limit post 25, when the upper die plate 1 moves down and is compressed to a certain position, the upper limit post 12 contacts with the lower limit post 25 and automatically maintains pressure for a period of time, so as to ensure that the oil-containing straight bearing 3 is pressed into the iron shell 4 and to complete the reaming requirement of the oil-containing straight bearing 3.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

It should be noted that the present invention is not limited to the particular embodiments described herein, and that the present invention includes all embodiments that are within the scope of the present invention. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. The utility model provides a device that will contain oily straight body bearing beer goes into iron-clad which characterized in that: including the cope match-plate pattern that can reciprocate and the lower bolster that corresponds with the cope match-plate pattern, be equipped with the pressure head towards the lower bolster on the cope match-plate pattern, it is equipped with reaming device to correspond the pressure head on the lower bolster, reaming device sets up in the retaining ring and the upper end is used for placing the reaming needle that the oily straight body of oil held including fixed solid fixed ring, the vertical fixing of setting on the lower bolster, gu the cover is equipped with on the fixed ring and is used for placing the stripper ring that the iron-clad just can reciprocate, it has the thimble that can reciprocate to pass on the lower bolster, the upper end butt of thimble is in stripper ring bottom, the lower bolster bottom still is equipped with the elastic mechanism who is used for the jack-up thimble, be provided with between stripper ring and the lower bolster and be.

2. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the elastic mechanism comprises a pull rod vertically fixed at the bottom of the lower template, an ejector plate fixed at the lower end of the pull rod, an ejector plate sleeved at the upper end of the pull rod and capable of moving up and down, and an ejector bow arranged between the ejector plate and used for jacking the ejector plate, the ejector pin is arranged between the discharge ring and the ejector plate, and the lower end of the ejector pin is abutted to the top surface of the ejector plate.

3. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 2 wherein: the lower template is provided with a communicating groove for the thimble to pass through, the outer wall of the lower end of the thimble protrudes to form a limiting end, and one end of the communicating groove on the bottom surface of the lower template is provided with a limiting groove matched with the limiting end along the inner wall direction.

4. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the limiting mechanism is a demoulding screw, the end tail thread of the demoulding screw is fixed in the discharging ring, and the end head of the demoulding screw penetrates through the lower template and moves up and down in the lower template.

5. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the outer wall of the discharging ring is provided with a groove along the vertical direction, and the inner wall of the iron shell is assembled and positioned with the groove through the arranged convex ribs.

6. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the reaming needle head is arranged in a retracted mode.

7. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the outer wall of reaming needle is equipped with fixed slot, fixed ring's inner wall is equipped with the fixture block of card in going into fixed slot.

8. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the punching needle is vertically arranged in the fixing ring, the bottom end of the punching needle is fixed at the bottom of the fixing ring, and the top end of the punching needle is abutted to the bottom end of the reaming needle.

9. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the lower template is fixedly provided with a guide pillar, a compression spring is sleeved on the guide pillar and located between the upper template and the lower template, the upper template is in sliding connection with the guide pillar through a guide sleeve, and a limiting plate is arranged at the upper end of the guide pillar.

10. The apparatus for oil impregnated straight body bearing beer into iron shell as claimed in claim 1 wherein: the lower template is provided with a lower limiting column, and the upper template is provided with an upper limiting column corresponding to the lower limiting column.

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