CN116447239A - Thrust bearing automatic assembly machine - Google Patents

Abstract

The invention discloses an automatic thrust bearing assembly machine, which includes a frame and at least one ball loading station arranged on the frame, and the ball loading station includes: a material unloading device for realizing automatic assembly of rolling elements. blanking; a positioning device, which is arranged below the blanking device, for positioning the cage; a charging device, which is arranged between the blanking device and the positioning device, for placing the blanking A plurality of rolling elements unloaded by the device are assembled in the cage on the positioning device. The thrust bearing automatic assembly machine provided by the invention can realize the automatic assembly of the rolling elements in the cage, reduce labor intensity and improve production efficiency.

Description

A thrust bearing automatic assembly machine

technical field

The invention relates to the technical field of bearings, in particular to an automatic thrust bearing assembly machine.

Background technique

Thrust ball bearings are bearings that bear axial force, including shaft rings, seat rings, cages and multiple steel balls placed in the cages. The current assembly process of thrust ball bearings is: manually press the required steel balls into the window of the cage one by one with fingers, this installation method consumes a lot of manpower and labor, the production efficiency is low, the cost is high, and it is not conducive to mass production , large-scale production.

Contents of the invention

The object of the present invention is to provide an automatic thrust bearing assembly machine, which can improve production efficiency.

Based on the above problems, the technical solution provided by the invention is:

An automatic thrust bearing assembly machine, comprising a frame and at least one ball loading station arranged on the frame, the ball loading station comprising:

The unloading device is used to realize the automatic unloading of rolling elements;

A positioning device, which is arranged below the unloading device, is used to realize the positioning of the cage;

The loading device is arranged between the unloading device and the positioning device, and is used for assembling the plurality of rolling elements unloaded by the unloading device into the cage on the positioning device.

Further, the unloading device includes a support frame, a silo fixed on the support frame, a plurality of material guide pipes whose upper ends extend into the silo, and a material guide drive installed on the support frame. mechanism, the plurality of material guide tubes are transmission-connected to the material guide drive mechanism and move up and down driven by the material guide drive mechanism, and the lower ends of the material guide tubes are connected to the charging device.

Further, the material guide driving mechanism includes a motor, an eccentric shaft arranged at the power output end of the motor, a roller mounted on the eccentric shaft, and a material guide plate assembly that rolls and cooperates with the roller. The material pipe is connected with the material guide plate assembly;

The material guide plate assembly includes a material guide plate and a mounting plate fixedly connected to the material guide plate, the material guide plate is provided with a rolling hole that is rolled and matched with the roller, and the rolling hole is a waist hole. The plurality of material guide tubes are fixed on the material guide head, and the material guide head is fixedly connected with the installation plate.

Further, the material guide driving mechanism also includes two guide assemblies arranged symmetrically up and down. The guide assembly includes a support plate fixed on the support frame and a support plate fixed on the support plate and extending in the vertical direction. A guide rod, the installation plate is provided with a guide part for the guide rod to extend into.

Further, the positioning device includes a support, a positioning seat fixed on the support, a lower mold base fixed on the positioning seat, a jacking sleeve assembly and a ejector rod assembly, and the lower mold base is provided with There is a limit platform for the cage to be placed, and the ejector sleeve assembly includes an ejector sleeve placed between the positioning seat and the support, an ejector rod fixed on the ejector sleeve And the first elastic member arranged between the ejector sleeve and the positioning seat, the ejector rod extends to the lower mold base through the positioning seat, and the ejector rod is in the ejector rod assembly Driven, it can extend into the window hole of the cage.

Further, the ejector rod assembly includes a ejector rod passed through the support and a first driving part connected to the ejector rod in transmission, the ejector rod moves up and down driven by the first driving part, To abut against or separate from the top material sleeve.

Further, the charging device includes a mounting frame, a jig plate slidingly fitted with the mounting frame, a second driving component that drives the jig plate to move up and down, and a ball loading mechanism installed on the jig plate And a pressure head mechanism for pressing multiple rolling elements in the ball loading mechanism into the cage.

Further, the ball loading mechanism includes a needle loading head fixed at the lower end of the jig plate, an upper mold seat fixed at the lower end of the needle loading head, a ball pressing part that can move up and down in the needle loading head, and a The second elastic member between the pressure ball component and the upper mold seat.

Further, the upper mold base is provided with a plurality of needle roller channels arranged at intervals along the circumferential direction, the needle roller channels extend radially along the upper mold base, and the needle roller channels are located on the radial direction of the upper mold base. The outer side is the feed port, and the radial inner side of the upper mold base is the discharge port, the feed port is connected to the blanking device, and the discharge port is connected to the window hole of the cage. Correspondingly: the ball pressing component includes a ball pressing plate and a plurality of thimbles arranged at the lower end of the ball pressing plate, and the plurality of thimbles correspond to the positions of the plurality of discharge ports.

Further, the pressure head mechanism includes a pressure head and a third driving part that are arranged opposite to the ball pressing part, and the pressure head is in transmission connection with the third driving part and is driven by the third driving part to approach or away from the pressure ball part.

Compared with prior art, the advantage of the present invention is:

Multiple steel balls can be automatically installed in the window hole of the cage, eliminating the need for manual installation, reducing labor intensity and production costs, and improving production efficiency; when two or more ball loading stations are set, only one person is required The whole machine can be operated, which is convenient for large-scale and batch production of products.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. The accompanying drawings in the following description are only some embodiments of the present invention. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is one of the structural schematic diagrams of an embodiment of a thrust bearing automatic assembly machine embodiment of the present invention;

Fig. 2 is the second structural diagram of the embodiment of the present invention;

Fig. 3 is the structural representation of unloading device in the embodiment of the present invention;

Fig. 4 is a schematic diagram of the installation structure of the roller and the eccentric shaft in the embodiment of the present invention;

Fig. 5 is a schematic structural view of a material guide plate in an embodiment of the present invention;

6 is a schematic structural diagram of a positioning device in an embodiment of the present invention;

Fig. 7 is the structural representation of lower mold base in the embodiment of the present invention;

Fig. 8 is a schematic structural view of a charging device in an embodiment of the present invention;

Fig. 9 is a schematic structural view of a pressure ball component in an embodiment of the present invention;

Fig. 10 is one of the structural schematic diagrams of the upper mold base in the embodiment of the present invention;

Fig. 11 is the second structural schematic view of the upper mold base in the embodiment of the present invention;

in:

1. Rack;

2. Unloading device; 2-1, support frame; 2-1a, first support plate; 2-1b, second support plate; 2-2, feed bin; 2-3, material guide pipe; 2-4, Motor; 2-5, eccentric shaft; 2-6, roller; 2-7, material guide plate; 2-7a, rolling hole; 2-8, mounting plate; 2-8a, guide part; 2-9, guide rod ; 2-10, support plate; 2-11, guide head; 2-12, connector; 2-13, linear bearing; 2-14, bearing;

3. Positioning device; 3-1, support; 3-2, positioning seat; 3-2a, perforation; 3-3, lower mold seat; 3-4, ejector sleeve; 3-5, ejector rod; 3 -6, the first elastic member; 3-7, the ejector rod; 3-8, the first driving part;

4. Loading device; 4-1. Mounting frame; 4-2. Fixture plate; 4-3. Second driving part; 4-4. Pressure ball component; 4-4a. Pressure ball plate; 4-4b. Ejector; 4-4c, limit groove; 4-5, needle head; 4-6, upper mold base; 4-6a, needle roller channel; 4-6b, groove; 4-7, pressure head; 4- 8. The third driving part; 4-9. The limit piece; 4-10. The second elastic piece;

5. Control unit;

6. Bracket; 6-1. Pillar; 6-2. Connecting plate;

7. Placement frame;

8. Support platform; 8-1, support plate; 8-2, support rod;

9. Cage;

10. Rolling body;

11. Feeding pipe.

Detailed ways

The above solution will be further described below in conjunction with specific embodiments. It should be understood that these examples are used to illustrate the present invention and not to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not indicated are usually the conditions in routine experiments.

Referring to Fig. 1 and Fig. 2, it is a structural schematic diagram of an embodiment of the invention, providing an automatic thrust bearing assembly machine, including a frame 1 and two ball loading stations arranged on the frame 1, each ball loading station includes The unloading device 2, the positioning device 3, and the loading device 4 are respectively signal-connected with the control unit 5 to realize automatic assembly of thrust bearing rolling elements.

As shown in Figure 3, the blanking device 2 is used to realize the automatic blanking of the rolling body 10 (such as steel balls), including a support frame 2-1, a feed bin 2-2 fixed on the support frame 2-1, an upper end A plurality of material guide pipes 2-3 partially extended to the feed bin 2-2 and a material guide driving mechanism installed on the support frame 2-1, a plurality of material guide pipes 2-3 are connected with the material guide drive mechanism and Driven by the material guide driving mechanism, the lower end of the material guide pipe 2-3 is connected to the charging device 4. Preferably, the feed pipe 2-3 is made of stainless steel.

The support frame 2-1 includes a first support plate 2-1a extending in the horizontal direction and a second support plate 2-1b arranged in the vertical direction. The first support plate 2-1a is connected with the second support plate 2-1b to form L type, the second support plate 2-1b is fixedly arranged on the bracket 6 of the frame 1, the bracket 6 includes two columns 6-1 arranged oppositely and a connecting plate 6-2 connecting the two columns 6-1, the second The support plate 2-1b is fixedly connected with the connecting plate 6-2 via the connecting member.

Wherein, the material guide driving mechanism includes a motor 2-4 installed on the second support plate 2-1b, an eccentric shaft 2-5 arranged at the power output end of the motor 2-4, and a roller 2-5 installed on the eccentric shaft 2-5. 6 and the material guide plate assembly rolling with the roller 2-6, a plurality of material guide pipes 2-3 are connected with the material guide plate assembly, and the roller 2-6 is supported on the eccentric shaft 2-5 through the bearing 2-14 (such as Figure 4).

The material guide plate assembly includes a material guide plate 2-7 and a mounting plate 2-8 fixedly connected with the material guide plate 2-7, and the material guide plate 2-7 is provided with a rolling hole 2-7a cooperating with the roller 2-6 , the rolling hole 2-7a is a waist-shaped hole (as shown in Figure 5), the waist-shaped hole extends along the horizontal direction, and the roller 2-6 rolls back and forth in the rolling hole 2-7a under the drive of the eccentric shaft 2-5, namely Can drive material guide plate 2-7 to move up and down.

In this example, a plurality of material guide pipes 2-3 are fixed on the material guide head 2-11 and are evenly spaced along the circumferential direction of the material guide head 2-11, and the material guide head 2-11 is connected to the mounting plate through the connecting piece 2-12. 2-8 fixed connections. Thus, the material guide plate 2-7 drives the mounting plate 2-8 to move up and down during the up and down movement process, and then drives a plurality of material guide pipes 2-3 to move up and down, so as to fill the steel balls in the feed bin 2-2 to the guide tube. In the feed pipe 2-3.

In order to improve the stability of the material guide drive mechanism, two guide assemblies arranged symmetrically up and down are also provided. Specifically, the guide assembly includes a support plate 2-10 fixed on the second support plate 2-1b and a support plate fixed on the support plate 2-1b. The guide rod 2-9 on the part 2-10 and extending in the vertical direction is provided with a guide part 2 for the guide rod 2-9 to extend into on the side of the mounting plate 2-8 facing the second support plate 2-1b -8a, a linear bearing 2-13 is provided on the guide part 2-8a to support the guide rod 2-9. When the material guide plate 2-7 moves up and down driven by the eccentric shaft 2-5, the guide part 2-8a of the mounting plate 2-8 slides up and down along the guide rod 2-9 to play a guiding role and improve the material guide drive. The stability of the organization's operation.

The positioning device 3 is arranged below the blanking device 2, and is used to realize the positioning of the cage 9, as shown in Figures 6 and 7, including a support 3-1 and a positioning seat 3 fixed on the support 3-1 -2. The lower mold base 3-3, the ejector sleeve assembly and the ejector rod assembly fixed on the positioning base 3-2 are provided with a limit platform for the cage 9 to be inserted on the lower mold base 3-3. The jacking sleeve assembly includes the jacking sleeve 3-4 placed between the positioning seat 3-2 and the support 3-1, the jacking rod 3-5 fixed on the jacking sleeve 3-4, and the jacking rod 3-5 arranged on the jacking sleeve. The first elastic member 3-6 between 3-4 and the positioning 3-2 seat is provided with a perforation 3-2a on the lower mold base 3-3 for the ejector rod 3-5 to extend into, and on the support 3-1 There is a positioning platform matching the ejector sleeve 3-4 on the upper part, the ejector rod 3-5 extends to the lower mold base 3-3 through the positioning seat 3-2, and the ejector rod 3-5 can be extended under the driving of the ejector rod assembly to the window hole of the holder 9. Preferably, the first elastic member 3-6 adopts a spring.

The ejector rod assembly includes the ejector rod 3-7 which is passed through the support 3-1 and the first driving part 3-8 which is transmission-connected with the ejector rod 3-7. Driven to move up and down, to abut or separate from the ejector sleeve 3-4, preferably, the first driving part 3-8 adopts an air cylinder. Wherein, the first driving part 3-8 is installed on the frame 1 through the placement frame 7, and the positioning seat 3-2 is fixed on the support platform 8 above the frame 1 table top, and the support platform 8 includes a plurality of poles 8-2 and The bracket plate 8-1 is arranged on the upper ends of the plurality of struts 8-2.

In the original position, that is, when the retainer 9 is positioned, the first driving part 3-8 drives the ejector rod 3-7 to stretch out, and the retainer 9 is manually placed on the lower mold base 3-3, and the ejector rod 3-5 is stretched out. Into the window hole of the cage 9 to make the cage 9 positioned. When the steel ball is loaded, the first driving part 3-8 drives the ejector rod 3-7 to retract, the ejector sleeve 3-4 moves down under the action of the first elastic member 3-6, and the ejector rod 3-5 moves from the cage 9 exit in order to install the steel ball.

The loading device 4 is arranged between the unloading device 2 and the positioning device 3 , and is used for assembling a plurality of rolling elements 10 unloaded by the unloading device 2 into the window holes of the cage 9 on the positioning device 3 . Specifically, as shown in Figure 8, the charging device 4 includes a mounting frame 4-1, a fixture plate 4-2 slidingly fitted with the mounting frame 4-1, and a second drive component that drives the fixture plate 4-2 to move up and down 4-3. The ball loading mechanism installed on the jig plate 4-2 and the pressure head mechanism for pressing the multiple rolling elements 10 in the ball loading mechanism into the cage 9 .

Specifically, the ball loading mechanism includes a needle loading head 4-5 fixed on the lower end of the jig plate 4-2, an upper mold base 4-6 fixed on the lower end of the needle loading head 4-5, and is movable up and down inside the needle loading head 4-5. The ball pressing part 4-4 and the second elastic member 4-10 arranged between the ball pressing part 4-4 and the upper mold base 4-6, wherein the second elastic part 4-10 is a spring. As shown in FIG. 9 , the ball pressing component 4-4 includes a ball pressing plate 4-4a and a plurality of thimbles 4-4b arranged at the lower end of the ball pressing plate 4-4a. The pressure ball plate 4-4a is penetrated in the fixture plate 4-2 and the needle head 4-5, and the side portion of the ball pressure plate 4-4a is provided with a limit groove 4-4c extending in the vertical direction, and the needle head 4 -5 is provided with a limiting member 4-9 extending into the limiting groove 4-4c. The pressure ball plate 4-4a can move up and down in the needle head 4-5, and is limited in the needle head 4-5 by the stopper 4-9.

As shown in Figure 10 and Figure 11, the upper mold base 4-6 is provided with a plurality of needle roller passages 4-6a arranged at intervals in the circumferential direction, and each needle roller passage 4-6a extends radially along the upper mold base 4-6 , the needle roller channel 4-6a is located on the radially outer side of the upper die base 4-6 as the feed port, and the radially inner side of the upper die base 4-6 is the discharge port, wherein the feed port passes through the lower material pipe 11 and The feeding pipe 2-3 is connected, preferably, the feeding pipe 11 adopts a spring tube, which is convenient for connection and blanking with the upper mold base 4-6. The discharge port corresponds to the window hole of the cage 9, the multiple thimbles 4-4b on the ball pressing plate 4-4a correspond to the positions of the multiple discharge ports, and the upper die base 4-6 is provided with a supply pin The through groove 4-6b that 4-4b extends into, when the thimble 4-4b extends into the upper mold base 4-6 through the through groove 4-6b, it can block the discharge port of the needle roller channel 4-6a or move the rolling body 10 is pressed into the window hole of the holder 9.

The pressure head mechanism includes a pressure head 4-7 and a third drive part 4-8 arranged opposite to the pressure ball part 4-4. Driven by -8 to approach or move away from the pressure ball part 4-4, when the rolling element 10 in the silo 2-2 is transported to the needle roller channel 4-6a of the upper mold base 4-6, the pressure head 4-7 is in the third Driven by the driving part 4-8, the pressing ball plate 4-4a is pressed, and the thimble 4-4b is blocked at the discharge port of the needle roller channel 4-6a. Driven by 4-8 to move up and down, the pressure ball plate 4-4a moves up under the action of the second elastic member 4-10, multiple thimbles 4-4b move up, the discharge port of the needle roller channel 4-6a is opened, and the needle rollers The steel ball in the channel 4-6a rolls down to the ball loading position of the upper mold base 4-6, and then the pressure head 4-7 is driven down by the third driving part 4-8, and the steel ball is installed on the Inside the cage 9.

Working principle of the present invention is:

Start the motor 2-4, the motor 2-4 rotates to drive the eccentric shaft 2-5 to rotate, the roller 2-6 rotates and drives the material guide plate 2-7 to move up and down, under the action of the guide assembly, the mounting plate 2-8 moves up and down at a constant speed, The mounting plate 2-8 drives the material guide tube 2-3 to move up and down, the material guide tube 2-3 moves up and down in the silo 2-2, the steel ball enters the material guide tube 2-3, and then enters the upper tube through the lower material tube 11. In the needle roller channel 4-6a of the mold base 4-6. The second driving part 4-3 drives the jig plate 4-2 to move down, the upper mold base 4-6 moves to the upper end surface of the cage 9, and the pressure ball plate 4-4a moves down driven by the third driving part 4-8 , The ejector pin 4-4b is blocked outside the outlet of the needle roller channel 4-6a.

The first driving part 3-8 drives the ejector rod 3-7 to extend, and the ejector rod 3-5 extends to the lower mold base 3-3, and the cage 9 is manually placed on the lower mold base 3-3 and the ejector rod 3-5 positioning, the first driving part 3-8 drives the ejector rod 3-7 to retreat, and the ejector rod 3-5 moves down under the action of the first elastic member 3-6 to complete the positioning of the cage 9.

When loading the ball, the third driving part 4-8 drives the pressure head 4-7 to move upward, the ball pressure plate 4-4a moves upward under the action of the second elastic member 4-10, and the thimble 4-4b is away from the needle roller channel 4-6a The steel ball in the needle roller channel 4-6a enters the ball loading position of the upper mold base 4-6, and the third driving part 4-8 drives the ball pressing plate 4-4a to move down, and multiple thimbles 4-4a 4b Press a plurality of steel balls into the cage 9 to complete the installation of the steel balls.

In summary, the assembly machine can realize the automatic installation of multiple rolling elements in the cage, which reduces labor intensity and improves production efficiency.

The above examples are only to illustrate the technical conception and characteristics of the present invention, and its purpose is to allow people familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A thrust bearing automatic assembly machine, characterized in that: it includes a frame and at least one ball loading station arranged on the frame, and the ball loading station includes: The unloading device is used to realize the automatic unloading of rolling elements; A positioning device, which is arranged below the unloading device, is used to realize the positioning of the cage; The loading device is arranged between the unloading device and the positioning device, and is used for assembling the plurality of rolling elements unloaded by the unloading device into the cage on the positioning device. 2. The thrust bearing automatic assembly machine according to claim 1, characterized in that: the unloading device comprises a support frame, a silo fixed on the support frame, and a plurality of hoppers whose upper end part extends into the silo. A material guide tube and a material guide drive mechanism installed on the support frame, the multiple material guide tubes are connected to the drive material guide drive mechanism and move up and down driven by the material guide drive mechanism, and the guide material guide drive mechanism is driven up and down. The lower end of the material tube is connected to the charging device. 3. The thrust bearing automatic assembly machine according to claim 2, characterized in that: the material guide drive mechanism includes a motor, an eccentric shaft arranged at the power output end of the motor, a roller mounted on the eccentric shaft and a The material guide plate assembly with rolling fit of the rollers, the plurality of material guide tubes are connected with the material guide plate assembly; The material guide plate assembly includes a material guide plate and a mounting plate fixedly connected to the material guide plate, the material guide plate is provided with a rolling hole that is rolled and matched with the roller, and the rolling hole is a waist hole. The plurality of material guide tubes are fixed on the material guide head, and the material guide head is fixedly connected with the installation plate. 4. The thrust bearing automatic assembly machine according to claim 3, characterized in that: the material guide driving mechanism also includes two guide assemblies arranged symmetrically up and down, and the guide assemblies include a support plate fixed on the support frame and a guide rod that is fixed on the support plate and extends in the vertical direction, and a guide portion for the guide rod to extend into is provided on the installation plate. 5. The thrust bearing automatic assembly machine according to claim 1, wherein the positioning device comprises a support, a positioning seat fixed on the support, a lower die seat fixed on the positioning seat, The ejector sleeve assembly and the ejector rod assembly, the lower mold base is provided with a limit platform for the cage to be placed in, and the ejector sleeve assembly includes a The ejector sleeve, the ejector rod fixed on the ejector sleeve and the first elastic member arranged between the ejector sleeve and the positioning seat, the ejector rod extends through the positioning seat to the The lower mold base, the ejector rod can extend into the window hole of the cage driven by the ejector rod assembly. 6. The thrust bearing automatic assembly machine according to claim 5, characterized in that: the ejector rod assembly includes a ejector rod penetrated in the support and a first driving part connected to the ejector rod by transmission, Driven by the first driving component, the ejector rod moves up and down to abut against or separate from the ejector sleeve. 7. The thrust bearing automatic assembly machine according to claim 1, characterized in that: the charging device includes a mounting frame, a jig plate slidingly fitted with the mounting frame, and a second jig plate that drives the jig plate to move up and down. Two driving components, a ball loading mechanism installed on the jig plate, and a pressure head mechanism for pressing a plurality of rolling bodies in the ball loading mechanism into the cage. 8. The thrust bearing automatic assembly machine according to claim 7, characterized in that: the ball loading mechanism includes a needle head fixed at the lower end of the jig plate, an upper die seat fixed at the lower end of the needle head, Moving up and down the ball pressing part arranged in the needle loading head and the second elastic part arranged between the ball pressing part and the upper mold seat. 9. The thrust bearing automatic assembly machine according to claim 8, characterized in that: the upper die base is provided with a plurality of needle roller passages arranged at intervals along the circumference, and the needle roller passages are arranged along the diameter of the upper die holder. Extending in the direction, the needle roller channel is located on the radially outer side of the upper die base as the feed port, and the radially inner side of the upper die base is the discharge port, and the feed port is connected to the unloading device connected, the discharge port corresponds to the window hole of the cage; the ball pressing part includes a ball pressing plate and a plurality of thimbles arranged at the lower end of the ball pressing plate, and the plurality of thimbles are connected with a plurality of outlet pins. Corresponding to the position of the feed port. 10. The thrust bearing automatic assembly machine according to claim 8, characterized in that: the pressure head mechanism includes a pressure head and a third driving part arranged opposite to the ball pressing part, the pressure head and the first pressure head The three driving parts are connected in transmission and are driven by the third driving part to approach or move away from the ball pressing part.