CN218556168U - Spring releasing device and steel ball press-mounting equipment - Google Patents

Abstract

The application provides a spring releasing device and steel ball press fitting equipment. The spring releasing device comprises a positioning support and a spring feeding assembly. A rod material jig is arranged on the positioning support, and a limiting groove for mounting the rod material is formed in the rod material jig; the spring feeding assembly comprises a spring vibrator, a spring conveying component and a spring discharging component, the spring vibrator is installed on the outer side of the positioning support, the spring discharging component is arranged right above the mounting hole and used for putting the spring into the mounting hole, and the spring conveying component is connected between the spring vibrator and the spring discharging component and used for conveying the spring. This application is in order to solve the problem that production efficiency is low of the steel ball pressure equipment among the prior art.

Description

Spring releasing device and steel ball press-mounting equipment

Technical Field

The application relates to the technical field of mechanical equipment, in particular to a spring releasing device and steel ball press-fitting equipment.

Background

In the process of machining workpieces, steel balls need to be pressed on some workpieces. For example, in some rod-shaped mechanisms, a steel ball needs to be installed at an end of a workpiece, and during specific installation, in order to ensure that the steel ball can rotate in the workpiece, a mounting hole is usually formed in the workpiece by machining, then a spring is installed in the mounting hole, then the steel ball is installed on the spring, and finally the workpiece is punched by a press-fitting mechanism so as to limit and press-fit the steel ball in the mounting hole of the workpiece.

However, in the prior art, except for the action of finally pressing the steel balls, the machine is adopted to execute other procedures, and the other procedures are manually executed, so that the labor intensity of workers is high, and the pressing efficiency of the steel balls is low.

Therefore, the inventor of the application designs a spring releasing device which can assemble a spring and improve the efficiency of press mounting of steel balls.

SUMMERY OF THE UTILITY MODEL

The main aim at of this application provides a spring input device and steel ball pressure equipment to the problem that the production efficiency of the steel ball pressure equipment among the solution prior art is low.

According to an aspect of the present application, there is provided a spring dropping device for installing a spring in a mounting hole of a pole material, the spring dropping device comprising:

the rod material fixture is arranged on the positioning support, and a limiting groove for mounting the rod material is formed in the rod material fixture;

the spring feeding assembly comprises a spring vibrator, a spring conveying component and a spring discharging component, the spring vibrator is installed on the outer side of the positioning support, the spring discharging component is arranged right above the mounting hole and used for putting the spring into the mounting hole, and the spring conveying component is connected between the spring vibrator and the spring discharging component and used for conveying the spring.

Further, the spring material loading subassembly still includes the lifting means, the lifting means includes:

the lifting cylinder is arranged on the outer side of the positioning bracket;

the lifting support is installed on the lifting cylinder and driven by the lifting cylinder to lift, and the spring blanking part is installed on the lifting support.

Further, the spring unloading part includes:

the spring discharging pipe is fixedly arranged on the lifting bracket, and a pipe hole of the spring discharging pipe is positioned right above the mounting hole;

and the limiting throwing mechanism is arranged on the lifting support and used for throwing and limiting the spring in the spring blanking pipe.

Furthermore, two opposite side walls of the spring blanking pipe are respectively provided with a first avoidance through hole and a second avoidance through hole, the first avoidance through hole and the second avoidance through hole are arranged at intervals along the vertical direction of the spring blanking pipe, and the distance between the first avoidance through hole and the second avoidance through hole is larger than the length of one spring and smaller than the sum of the lengths of the two springs;

spacing input mechanism includes:

the spring blanking pipe is arranged in the avoidance part in a penetrating manner, two opposite sides of the avoidance part are respectively provided with a first blocking needle and a second blocking needle, the first blocking needle is perpendicular to the spring blanking pipe and is opposite to the first avoidance through hole, and the second blocking needle is perpendicular to the spring blanking pipe and is opposite to the second avoidance through hole;

the movable cylinder is installed on the lifting support and is in driving connection with the limiting throwing block to drive the limiting throwing block to slide in a reciprocating mode, and then the first blocking pin is arranged in the first avoiding through hole or the second blocking pin is arranged in the second avoiding through hole.

Furthermore, a detection through hole is further formed in the spring discharging pipe, the extending direction of the detection through hole is perpendicular to the length direction of the spring discharging pipe, the detection through hole is located at the bottom of the first avoidance through hole, a spring detection piece is arranged on the limiting throwing block, and the spring detection piece is right opposite to the detection through hole.

Furthermore, a sensor is arranged on the lifting support and is arranged at the inlet end of the spring discharging pipe to detect whether the spring discharging pipe is filled with the spring or not.

Furthermore, a rod material detection piece is arranged on the positioning support and used for detecting whether the rod material is placed in the limiting groove or not.

Furthermore, an avoiding notch is formed in the end part of the limiting groove, and the rod material extends out of the limiting groove from the avoiding notch;

the spring releasing device further comprises a clamping component, and the clamping component is arranged at the end part of the positioning support and used for clamping the end part of the rod material extending out of the avoiding notch.

Further, the clamping member includes:

the clamping block positioning plate is provided with a clamping block sliding groove;

the first clamping block is arranged on the clamping block positioning plate and can slide along the clamping block sliding groove;

the second clamping block is arranged on the clamping block positioning plate and can slide along the clamping block sliding groove;

the clamping block driving piece is in driving connection with the first clamping block and the second clamping block to drive the first clamping block and the second clamping block to be close to or far away from each other.

On the other hand, this application embodiment still provides a steel ball pressure equipment, steel ball pressure equipment includes foretell spring input device.

From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

during operation, at first utilize the transfer device to remove the pole material and place on the pole material tool, afterwards, place the spring in spring vibrator, when spring vibrator during operation, can with in spring vibration transmission to spring conveying part, and then enter into to spring unloading part in, after the spring entered into to spring unloading part in, through the effect of spring unloading part, can be from the mounting hole directly over put in to the mounting hole. That is to say, through the effect of the spring release device in this application, can put in the spring to the mounting hole in automatically, can realize the automatic equipment of spring, improve the packaging efficiency of whole steel ball pressure equipment.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application for purposes of illustration and description. In the drawings:

FIG. 1 is a schematic structural diagram of a steel ball press-fitting device disclosed in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a spring releasing device disclosed in an embodiment of the present application;

fig. 3 is a schematic structural diagram of the spring releasing device disclosed in the embodiment of the present application after a spring vibrator is removed;

FIG. 4 is an enlarged view of the region R in FIG. 3;

fig. 5 is a schematic structural view of a limiting releasing block and a spring blanking pipe portion disclosed in the embodiment of the present application.

Wherein the figures include the following reference numerals:

in the figure: 10. a rod material; 11. a main body; 12. a square column cap; 121. mounting holes;

20. a rod material rotation orienting device;

30. a rod positioning detection device;

40. a spring releasing device; 41. positioning the bracket; 401. a rod material jig; 411. a limiting groove; 412. a rod material detection member; 413. Avoiding the notch; 42. a spring loading assembly; 421. a spring vibrator; 422. a spring conveying member; 423. a spring blanking part; 4231. a spring blanking tube; 42311. a first avoidance through hole; 42312. a second avoidance through hole; 42313. detecting the through hole; 4232. a limiting and throwing mechanism; 42321. a limiting throwing block; 423211, an avoiding part; 423212, a first blocking needle; 423213, a second blocking needle; 423214, a detector; 42322. a moving cylinder; 424. a lifting member; 4241. a lifting cylinder; 4242. a lifting support; 42421. a sensor; 45. a clamping member; 451. a clamp block positioning plate; 4511. a clamping block sliding groove; 452. a first clamping block; 453. a second clamping block;

50. a steel ball releasing device; 70. a spring; 80. a machine base; 90. a transfer device; 91. a first manipulator; 100. steel ball pressure equipment device.

Detailed Description

In addition, the applications and features of the applications may be combined with each other without conflict. The present application will now be described in detail with reference to the drawings and applications incorporated herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of parts and steps, numerical expressions and numerical values set forth in these applications do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary application may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Referring to fig. 1 to 3, according to an embodiment of the present application, there is provided a steel ball press-fitting apparatus for press-fitting a spring and a steel ball on a bar 10. Specifically, the rod 10 of the present embodiment is a straight rod-shaped structure, which may be, for example, a rod-segment structure, and the rod 10 has various types with different lengths. The pole material 10 comprises a main body 11, wherein a square column head 12 is arranged at the end part of the main body 11, a mounting hole 121 is arranged at one side surface of the square column head 12, and the depth direction of the mounting hole 121 is vertical to the length direction of the main body 11. During actual press fitting, the steel balls are press fitted in the mounting holes 121.

Referring to fig. 1 to 3, the steel ball press-mounting apparatus in the present embodiment includes a base 80, a rod material rotation and orientation device 20, a rod material positioning and detecting device 30, a spring releasing device 40, a steel ball releasing device 50, a transfer device 90, and a steel ball press-mounting device 100.

Wherein, the rod material rotation orientation device 20, the rod material positioning detection device 30, the spring release device 40, the steel ball release device 50, and the steel ball press-mounting device 100 are sequentially arranged along the same linear direction of the machine base 80. During actual operation, the rod material rotating and orienting device 20 is used for rotating and orienting the rod material 10, so that the mounting hole 121 in the rod material 10 faces upward, the transfer device 90 includes a first manipulator 91, the first manipulator 91 is used for moving the rod material 10 after the rod material rotating and orienting device 20 rotates and orients to the rod material positioning and detecting device 30, the rod material 10 can be positioned under the action of the rod material positioning and detecting device 30, the rod material 10 which does not meet the requirement in the rod material 10 can be conveniently selected, and the rod material rotating and orienting device is more suitable for subsequent processes to put in springs and steel balls. After the rod material positioning detection device 30 has detected the positioning of the rod material 10, the rod material 10 can be moved to the spring dropping device 40 by the action of the transfer device 90, and the spring can be dropped into the mounting hole 121 by the action of the spring dropping device 40. Thereafter, the bar 10 can be moved to the steel ball discharging device 50 again by the transfer device 90, and the steel ball can be easily discharged into the spring-mounted mounting hole 121 by the steel ball discharging device 50. Finally, the rod 10 with the spring and the steel ball can be moved to the steel ball press-fitting device 100 again by the action of the transfer device 90, the rod 10 can be pressed by the steel ball press-fitting device 100, and the steel ball can be fixed in the mounting hole 121 in a press-fitting manner, so that the steel ball is prevented from falling out of the mounting hole 121.

This application has especially designed a spring and has put in device 40, and this spring puts in device 40 can put in the spring to mounting hole 121 automatically, can improve the work efficiency of steel ball pressure equipment.

Referring to fig. 2 to 4, the spring feeding device 40 in the present embodiment includes a positioning bracket 41 and a spring feeding assembly 42. Wherein, a rod material jig 401 is arranged on the positioning bracket 41, and a limit groove 411 for installing the rod material 10 is arranged on the rod material jig 401; the spring feeding assembly 42 includes a spring vibrator 421, a spring conveying member 422, and a spring discharging member 423, the spring vibrator 421 is mounted on the outer side of the positioning bracket 41, the spring discharging member 423 is disposed right above the mounting hole 121 of the rod 10 for discharging the spring 70 into the mounting hole 121, and the spring conveying member 422 is connected between the spring vibrator 421 and the spring discharging member 423 for conveying the spring 70.

When the feeding device 90 is in operation, the rod 10 is moved and placed on the rod jig 401 by the transfer device 90, then the spring 70 is placed in the spring vibrator 421, when the spring vibrator 421 is in operation, the spring 70 can be vibrated and transmitted into the spring conveying component 422 and further into the spring blanking component 423, and after the spring 70 enters the spring blanking component 423, the spring can be fed into the mounting hole 121 from the position right above the mounting hole 121 under the action of the spring blanking component 423. That is to say, through the effect of the spring releasing device in this embodiment, the spring 70 can be automatically released into the mounting hole 121, so that the automatic assembly of the spring 70 can be realized, and the assembly efficiency of the whole steel ball press-fitting equipment is improved.

Further, the rod jig 401 in this embodiment is a long strip-shaped structure, the limiting groove 411 is a groove structure disposed on the rod jig 401, a length direction of the limiting groove 411 is identical to a length direction of the rod jig 401, and the spring loading assembly 42 is disposed at an end of the rod jig 401, so as to automatically place the spring 70 in the mounting hole 121. Further, the spring feeding assembly 42 in this embodiment further includes a lifting member 424, and the lifting member 424 includes a lifting cylinder 4241 and a lifting bracket 4242. Wherein, the lifting cylinder 4241 is arranged at the outer side of the positioning bracket 41; the lifting support 4242 is installed on a lifting cylinder 4241 and driven by the lifting cylinder 4241 to lift, and the spring blanking component 423 is installed on the lifting support 4242. Through the effect of the lifting component 424, the spring blanking component 423 can be driven to move towards the direction close to the mounting hole 121, and then the spring 70 can be stably placed in the mounting hole 121.

Alternatively, the lifting support 4242 in this embodiment may be a frame structure, a support plate, or another structure capable of supporting the spring blanking member 423, and any other modifications of the lifting support 4242 under the spirit of the present application are within the scope of the present application.

Further, the spring feeding member 422 in this embodiment includes a feeding hose or other structures, and any other deformation manner capable of transferring the spring 70 from the spring vibrator 421 to the spring discharging member 423 is within the protection scope of the present application.

Referring to fig. 2 to 5, the spring blanking member 423 includes a spring blanking tube 4231 and a limit dropping mechanism 4232. The spring blanking tube 4231 is fixedly installed on the lifting support 4242, and the tube hole of the spring blanking tube 4231 is located right above the installation hole 121; the limit releasing mechanism 4232 is installed on the lifting support 4242 for releasing and limiting the spring 70 in the spring discharging tube 4231. When the lifting component 424 is lifted, the spring blanking tube 4231 can be driven to descend, so that the spring blanking tube 4231 descends to be in butt joint with the mounting hole 121, and accurate throwing of the spring 70 is facilitated; through the action of the limiting and throwing mechanism 4232, the spring 70 in the spring blanking pipe 4231 can be conveniently thrown into the mounting hole 121 at a proper time.

Specifically, in the present embodiment, two opposite side walls of the spring blanking tube 4231 are respectively provided with a first avoidance through hole 42311 and a second avoidance through hole 42312, wherein the first avoidance through hole 42311 and the second avoidance through hole 42312 are arranged at intervals along the vertical direction of the spring blanking tube 4231, and the distance between the first avoidance through hole 42311 and the second avoidance through hole 42312 is greater than the length of one spring 70 and less than the sum of the lengths of the two springs 70, and it can be understood that the length of the spring 70 is the length of the spring 70 in a natural state. The limit releasing mechanism 4232 comprises a limit releasing block 42321 and a movable cylinder 42322, wherein the limit releasing block 42321 is installed on the lifting support 4242, an avoiding part 423211 is arranged on the limit releasing block 42321, the spring discharging pipe 4231 penetrates through the avoiding part 423211, a first blocking needle 423212 and a second blocking needle 423213 are respectively arranged on two opposite sides of the avoiding part 423211, the first blocking needle 423212 is perpendicular to the spring discharging pipe 4231 and is opposite to the first avoiding through hole 42311, and the second blocking needle 423213 is perpendicular to the spring discharging pipe 4231 and is opposite to the second avoiding through hole 42312; the moving cylinder 42322 is installed on the lifting support 4242, the moving cylinder 42322 is in driving connection with the limit releasing block 42321 to drive the limit releasing block 42321 to slide back and forth, and further drives the first blocking needle 423212 to be inserted into the first avoiding through hole 42311 or the second blocking needle 423213 to be inserted into the second avoiding through hole 42312.

After the lifting support 4242 is lowered to a certain position, the moving cylinder 42322 is used for driving the limit releasing block 42321 to reciprocate, specifically, when the moving cylinder 42322 drives the first blocking needle 423212 to be inserted into the first avoiding through hole 42311, the spring 70 except the lowest spring 70 in the spring discharging pipe 4231 can be stopped in the spring discharging pipe 4231, meanwhile, the second blocking needle 423213 can deflect towards a direction far away from the spring discharging pipe 4231, at this time, the spring 70 at the bottom of the first blocking needle 423212 can directly fall into the mounting hole 121, and releasing of the spring 70 is completed. When the moving cylinder 42322 drives the second blocking needle 423213 to be inserted into the second avoiding through hole 42312, the second blocking needle 423213 may stop all the springs 70 in the spring discharging tube 4231, at this time, the spring 70 located at the bottom of the first blocking needle 423212 may directly drop into the mounting hole 121, and at this time, the rod material 10 may be conveniently placed or the spring 70 may be conveniently vibrated and transmitted into the spring discharging tube 4231.

Of course, in other embodiments of the present application, the moving cylinder 42322 and the lifting cylinder 4241 may be replaced by a motor and a lead screw assembly, and any other modifications within the spirit of the present application are within the scope of the present application.

Further, the spring blanking tube 4231 in this embodiment is further provided with a detection through hole 42313, an extending direction of the detection through hole 42313 is perpendicular to a length direction of the spring blanking tube 4231, the detection through hole 42313 is located at the bottom of the second avoidance through hole 42312, a spring detection piece 423214 is arranged on the limit releasing mechanism 4232, and the spring detection piece 423214 is opposite to the detection through hole 42313. When the spring 70 falls down, it passes through the detection through hole 42313, and at this time, the spring detection piece 423214 detects the spring 70 passing through the detection through hole 42313, and determines whether the spring 70 falls down and drops into the mounting hole 121. Alternatively, the spring element detecting element 423214 may be an infrared sensor or a laser sensor.

Further, a sensor 42421 is disposed on the lifting bracket 4242, and the sensor 42421 is disposed at an inlet end of the spring discharging pipe 4231 for detecting whether the spring discharging pipe 4231 is filled with the spring 70. When the sensor 42421 detects that the spring 70 is filled in the spring feeding pipe 4231, the spring vibrator 421 can be controlled to stop the spring vibrator 421, so that the energy consumption of the spring feeding device can be reduced. Meanwhile, when the sensor 42421 detects that the spring feeding pipe 4231 is filled with the spring 70, the lifting cylinder 4241 is controlled conveniently, and the spring 70 is automatically fed conveniently.

Further, the positioning bracket 41 in this embodiment is provided with a rod detecting member 412, the rod detecting member 412 is used for detecting whether the rod 10 is placed in the limiting groove 411, and the automatic control of the spring releasing device is facilitated through the action of the rod detecting member 412. Alternatively, the rod detecting member 412 may be a laser sensor or the like, and any other modifications within the spirit of the present application are within the scope of the present application.

After the spring 70 is loaded, the rod 10 is moved to the ball loading device 50 by the transfer device 90, and in order to prevent the rod 10 from being displaced, the rod 10 is fixed before the transfer device 90 performs clamping and transferring, and therefore, the spring loading device 40 of the present embodiment is further provided with a clamping member 45.

In order to facilitate the clamping component 45 to clamp and position the rod material 10, the end of the limiting groove 411 in this embodiment is provided with an avoiding notch 413, and when in use, the rod material 10 can extend out of the limiting groove 411 from the avoiding notch 413; and the clamping member 45 is disposed at an end portion of the positioning bracket 41 for clamping an end portion of the pole material 10 protruding from the escape notch 413. After the end of the rod 10 is clamped and fixed by the clamping member 45, when the transfer device 90 moves the rod 10 horizontally, the position of the rod 10 in the axial direction is not moved, so that the steel ball can be conveniently thrown in the next process.

Optionally, the clamping member 45 includes a clamping block positioning plate 451, a first clamping block 452, a second clamping block 453, and a clamping block driving member (not shown in the drawings). Wherein, the clamping block positioning plate 451 is provided with a clamping block sliding groove 4511; the first clamping block 452 is mounted on the clamping block positioning plate 451 and can slide along the clamping block sliding groove 4511; the second clamping block 453 is installed on the clamping block positioning plate 451 and can slide along the clamping block sliding groove 4511; the clamping block driving member is drivingly connected to the first clamping block 452 and the second clamping block 453 to drive the first clamping block 452 and the second clamping block 453 toward or away from each other. When the clamping block driving part drives the first clamping block 452 and the second clamping block 453 to approach each other, the end part of the rod 10 extending out of the avoiding notch 413 can be clamped, and the rod 10 can be fixed in the rod jig 401; when the clamp block driving member drives the first clamp block 452 and the second clamp block 453 away from each other, the fixing of the pole material 10 may be released. For example, the clamping block driving element may be a driving cylinder, and may also be a combination structure of a driving motor and a screw assembly, etc., and any other modifications under the concept of the present application are within the scope of the present application.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, so that the scope of the present application is not to be construed as being limited.

The foregoing is merely a preferred application of the present application and is not intended to limit the present application, which may be modified and varied by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A spring dropping device for mounting a spring (70) in a mounting hole (121) of a pole material (10), characterized by comprising:

the rod material fixing device comprises a positioning support (41), wherein a rod material jig (401) is arranged on the positioning support (41), and a limiting groove (411) for mounting the rod material (10) is arranged on the rod material jig (401);

spring material loading subassembly (42), spring material loading subassembly (42) includes spring vibrator (421), spring conveying component (422) and spring unloading part (423), spring vibrator (421) are installed the outside of locating support (41), spring unloading part (423) set up in just above mounting hole (121) in order to be used for with spring (70) are thrown in mounting hole (121), spring conveying component (422) are connected spring vibrator (421) with carry out between spring unloading part (423) the transportation of spring (70).

2. The spring delivery device of claim 1, wherein the spring loading assembly (42) further comprises a lifting member (424), the lifting member (424) comprising:

a lifting cylinder (4241), wherein the lifting cylinder (4241) is installed on the outer side of the positioning bracket (41);

the lifting support (4242) is installed on the lifting cylinder (4241) and driven by the lifting cylinder (4241) to lift, and the spring blanking component (423) is installed on the lifting support (4242).

3. The spring delivery device of claim 2, wherein the spring blanking member (423) comprises:

the spring discharging pipe (4231) is fixedly installed on the lifting support (4242), and a pipe hole of the spring discharging pipe (4231) is located right above the installation hole (121);

the limiting releasing mechanism (4232) is installed on the lifting support (4242) and used for releasing and limiting the spring (70) in the spring discharging pipe (4231).

4. The spring releasing device according to claim 3, wherein a first avoiding through hole (42311) and a second avoiding through hole (42312) are respectively arranged on two opposite side walls of the spring discharging pipe (4231), the first avoiding through hole (42311) and the second avoiding through hole (42312) are arranged at intervals along the vertical direction of the spring discharging pipe (4231), and the distance between the first avoiding through hole (42311) and the second avoiding through hole (42312) is larger than the length of one spring (70) and smaller than the sum of the lengths of the two springs (70);

the limit release mechanism (4232) comprises:

the device comprises a limiting throwing block (42321), wherein the limiting throwing block (42321) is installed on a lifting support (4242), an avoiding part (423211) is arranged on the limiting throwing block (42321), a spring discharging pipe (4231) penetrates through the avoiding part (423211), a first blocking needle (423212) and a second blocking needle (423213) are respectively arranged on two opposite sides of the avoiding part (423211), the first blocking needle (321422) is perpendicular to the spring discharging pipe (4231) and is just opposite to a first avoiding through hole (42311), and the second blocking needle (423213) is perpendicular to the spring discharging pipe (4231) and is just opposite to a second avoiding through hole (42312);

the moving cylinder (42322), the moving cylinder (42322) is installed on the lifting support (4242), the moving cylinder (42322) is in driving connection with the limit releasing block (42321) to drive the limit releasing block (42321) to slide in a reciprocating manner, and then the first blocking needle (423212) is driven to be inserted into the first avoiding through hole (42311) or the second blocking needle (423213) is driven to be inserted into the second avoiding through hole (42312).

5. The spring releasing device according to claim 4, wherein a detection through hole (42313) is further formed in the spring discharging pipe (4231), the extending direction of the detection through hole (42313) is perpendicular to the length direction of the spring discharging pipe (4231), the detection through hole (42313) is located at the bottom of the first avoiding through hole (42311), a spring detection piece (423214) is arranged on the limiting releasing block (42321), and the spring detection piece (423214) is opposite to the detection through hole (42313).

6. A spring release device according to claim 4, wherein a sensor (42421) is arranged on the lifting support (4242), said sensor (42421) being arranged at the inlet end of the spring discharge tube (4231) for detecting whether the spring (70) is filled in the spring discharge tube (4231).

7. A spring releasing device according to any one of claims 1 to 6, characterized in that a rod detecting member (412) is disposed on the positioning bracket (41), and the rod detecting member (412) is used for detecting whether the rod (10) is placed in the limiting groove (411).

8. A spring releasing device according to any one of claims 1-6, characterized in that an avoiding notch (413) is provided at the end of the limiting groove (411), and the rod material (10) extends out of the limiting groove (411) from the avoiding notch (413);

the spring releasing device further comprises a clamping component (45), and the clamping component (45) is arranged at the end part of the positioning support (41) and is used for clamping the end part, extending out of the avoiding notch (413), of the rod material (10).

9. Spring delivery device according to claim 8, characterized in that the clamping member (45) comprises:

the clamping block positioning plate (451) is provided with a clamping block sliding groove (4511);

a first clamping block (452), wherein the first clamping block (452) is installed on the clamping block positioning plate (451) and can slide along the clamping block sliding groove (4511);

a second clamping block (453) mounted on the clamping block positioning plate (451) and slidable along the clamping block sliding groove (4511);

a clamping block driving element in driving connection with the first clamping block (452) and the second clamping block (453) to drive the first clamping block (452) and the second clamping block (453) towards or away from each other.

10. A steel ball press fitting apparatus, characterized in that it comprises a spring release device according to any one of claims 1 to 9.

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