Bearing steel ball filling device

Abstract

This invention provides a bearing steel ball loading device, comprising a base and a mold shaft. The base is provided with a limiting groove for mounting a cage. The mold shaft is rotatably telescopic, and its front end can extend to abut against the center of the limiting groove. The mold shaft is provided with a pressing groove and a steel ball channel for rolling steel balls. The steel ball channel connects the rear end face of the mold shaft and the pressing groove. The pressing groove is located at the front end of the mold shaft, and its opening is opposite to the cage. The pressing groove extends circumferentially to one side and gradually decreases in size. The mold shaft is rotatable to the other side. Addressing the shortcomings of existing technologies, this invention provides a bearing steel ball loading device capable of automatically assembling steel balls into a cage.

Description

Technical Field

[0001] This invention relates to a bearing steel ball loading device. Background Technology

[0002] Bearings are crucial components used for rotating support in machinery. A bearing typically consists of an outer ring, an inner ring, a cage, and several rollers. A raceway is formed between the outer and inner rings for the rollers to roll. The cage, through its pockets, spaces and guides the rollers. There are many types of bearing rollers; steel balls are a common type. Bearings that use steel balls as rollers, such as deep groove ball bearings and angular contact ball bearings, require the steel balls to be loaded into the cage first during installation. The cage then limits the movement of the steel balls before they are installed between the outer and inner rings. However, assembling the steel balls into the cage is a tedious task. For a long time, we could only manually press the required steel balls one by one into the cage, which was extremely inefficient. Therefore, a steel ball loading device is needed, providing technical support for improving bearing assembly production efficiency. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a bearing steel ball loading device capable of automatically assembling steel balls into a cage.

[0004] To achieve the above objectives, the present invention provides a bearing steel ball loading device, comprising a base and a mold shaft. The base is provided with a limiting groove for mounting a cage. The mold shaft is rotatably telescopic, and its front end can extend to abut against the middle of the limiting groove. The mold shaft is provided with a pressing groove and a steel ball channel for rolling steel balls. The steel ball channel connects the rear end face of the mold shaft and the pressing groove. The pressing groove is located at the front end of the mold shaft, and its opening is opposite to the cage. The pressing groove extends circumferentially to one side and gradually decreases in size. The mold shaft is rotatably oriented to the other side.

[0005] The advantages of the above technical solution are: by setting a base and a mold shaft, a limiting groove for cage installation is provided on the base, and the mold shaft is configured to rotate and extend, allowing the front end of the mold shaft to extend to abut against the middle of the limiting groove. A steel ball channel and a pressing groove are provided on the mold shaft, aligning the pressing groove with the cage pocket. Furthermore, the direction of the gradually decreasing pressing groove's extension is opposite to the direction of mold shaft rotation. During the process of installing the steel ball into the cage pocket, the cage is first installed in the limiting groove, and the mold shaft position... Move the front end of the ball to abut against the middle of the limiting groove. Then, place the steel ball into the steel ball channel through the rear end of the mold shaft. Let the steel ball roll into the pressing groove through the steel ball channel. At this time, the steel ball will abut against the pressing groove and the cage respectively. Then, the mold shaft rotates, causing the pressing groove to rotate together. The steel ball is moved to the cage pocket. After the steel ball enters the pocket, it is limited by the pocket. Then, it is squeezed into the pocket by the gradually decreasing pressing groove. Then, the next steel ball falls into the pressing groove. Repeat the above process. In this way, the automatic filling of steel balls is completed.

[0006] The present invention can be further configured such that: the mold shaft includes a mounting part located at its front end, the mounting part is arranged in a ring shape, the outer diameter of the mounting part is spaced apart from the retainer, and the distance between the outer diameter of the mounting part and the retainer is equal to the radius of the steel ball, and the pressing groove is provided at the mounting part.

[0007] By further configuring the mold shaft with an annular mounting part, the pressing groove is positioned at the mounting part, and the distance between the mounting part and the cage is equal to the radius of the steel ball. This prevents the steel ball from accidentally coming out of the cage after installation.

[0008] The present invention can be further configured such that: the limiting groove is provided with an annular protrusion, and the protrusion can form a sleeve engagement with the retainer.

[0009] By further configuring the design, an annular protrusion is provided in the limiting groove, and the protrusion and the cage are fitted together to form a limiting effect on the cage.

[0010] The present invention can be further configured such that: a plurality of sensors are provided on the peripheral wall of the limiting groove, and the plurality of sensors are provided in a one-to-one correspondence with the retainer pocket.

[0011] By further configuring sensors that correspond one-to-one with the cage pockets, it is possible to detect whether there are steel balls in the corresponding cage pockets, thus allowing the host to determine whether to drive the shaft to rotate and extend.

[0012] The present invention can be further configured to include a steel ball counter disposed above the mold shaft, wherein the steel ball counter is provided with a counting channel for rolling steel balls and counting them, and the counting channel is connected to the steel ball channel.

[0013] With further configuration, a steel ball counter can be set up, and a technical channel can be set up on the steel ball counter. The steel balls can first pass through the technical channel and then enter the steel ball channel. During this process, the steel ball counter is used to calculate the number of steel balls, so that the number of steel balls corresponds to the number of cage pockets.

[0014] The present invention can be further configured such that: the mold shaft includes a main shaft, the steel ball channel includes a first section and a second section located at the main shaft and the mounting part respectively, the first section and the second section are connected to each other, the first section is connected to the rear end face of the mold shaft, the second section is connected to the pressing groove, when the mold shaft retracts away from the limiting groove, the mounting part can be guided and slid between the main shaft by its own weight, and the second section can be disengaged from the first section under the action of the mounting part.

[0015] By further designing the mold shaft into a main shaft and a mounting section, and the steel ball channel into a first section and a second section located at the main shaft and the mounting section, the mounting section can slide under its own weight and guided by the main shaft. This allows the first section and the second section to be connected when the mold shaft is normally abutting in the limiting groove. When the mold shaft retracts away from the limiting groove, the mounting section slides under its own weight and guides the main shaft, causing the second section to disengage from the first section under the sliding motion of the mounting section. At this time, the balls are confined in the first section. This allows the mold shaft to rise after the steel balls in one retainer are filled, and subsequent steel balls are confined in the first section until a new retainer is placed in the limiting groove. The mold shaft then moves down again and abuts against the middle of the limiting groove, at which point subsequent steel balls roll back into the pressing groove.

[0016] The present invention can be further configured such that: the mounting part is provided with a swinging member, the swinging member includes a snap-fit ​​part and abutting part, the snap-fit ​​part and abutting part are respectively provided at the second section and the pressing groove, the abutting part can drive the swinging member to swing until its snap-fit ​​part extends into the second section under the push of the steel ball, and the snap-fit ​​part can drive the swinging member to swing until its abutting part extends into the pressing groove under the push of the steel ball when the pressing groove is empty.

[0017] By further designing the mounting section, a swinging component with a locking part and an abutment part is installed. The locking part and the abutment part are respectively located at the second section and the pressing groove. When the steel ball enters the pressing groove, the steel ball pushes the abutment part, causing the swinging component to swing as a whole, which in turn drives the locking part into the second section. At this time, the steel ball in the pressing groove is simultaneously limited by the cage, preventing subsequent steel balls from pushing the locking part, thus limiting the subsequent steel balls. After the previous steel ball enters the cage pocket, the pressing groove becomes empty. At this time, the steel ball pushes the locking part under its own weight, causing it to retract, and the steel ball smoothly enters the pressing groove. At the same time, the locking part extends, limiting the subsequent steel balls. This process is repeated.

[0018] The present invention can be further configured such that the main shaft and the mounting part are respectively provided with a plurality of vertically extending guide protrusions and guide grooves.

[0019] By further configuring the spindle and mounting part with vertically extending guide protrusions and guide grooves respectively, a guide sliding fit is formed between the spindle and the mounting part. Attached Figure Description

[0020] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0021] Figure 2 This is a top view of Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the mold shaft in Embodiment 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the fit between the mold shaft and the cage in Embodiment 1 of the present invention;

[0024] Figure 5 This is a schematic diagram of the base structure in Embodiment 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of Embodiment 2 of the present invention;

[0026] Figure 7 This is an enlarged view of part a in Embodiment 2 of the present invention;

[0027] Figure 8 This is a schematic diagram showing the fit between the swinging component, the second section, and the press-fit groove in Embodiment 2 of the present invention;

[0028] The components include: base 1; limiting groove 11; protrusion 12; mold shaft 2; pressing groove 21; steel ball channel 22; first section 221; second section 222; mounting section 23; main shaft 24; sensor 3; steel ball counter 4; swinging component 5; snap-fit ​​section 51; and abutment section 52. Detailed Implementation

[0029] An embodiment of the bearing steel ball loading device of the present invention is as follows: Figure 1-5 As shown: It includes a base 1, a mold shaft 2, several sensors 3, and a steel ball counter 4. The base 1 is provided with a limiting groove 11 for mounting a retainer. The mold shaft 2 is rotatably telescopic, and the front end of the mold shaft 2 can extend to abut against the middle of the limiting groove 11. The mold shaft 2 is provided with a pressing groove 21 and a steel ball channel 22 for rolling steel balls. The steel ball channel 22 is connected to the rear end face of the mold shaft 2 and the pressing groove 21. The pressing groove 21 is located at the front end of the mold shaft 2, and the opening of the pressing groove 21 is opposite to the retainer. The pressing groove 21 extends in a circumferential direction and gradually decreases in size. The mold shaft 2 is rotatably oriented in the other direction.

[0030] The mold shaft 2 includes a mounting part 23 located at its front end. The mounting part 23 is arranged in a ring shape. The outer diameter of the mounting part 23 is spaced apart from the retainer. The distance between the outer diameter of the mounting part 23 and the retainer is equal to the radius of the steel ball. The pressing groove 21 is provided at the mounting part 23.

[0031] The limiting groove 11 is provided with an annular protrusion 12, which can form a sleeve fit with the cage.

[0032] Several sensors 3 are arranged circumferentially on the peripheral wall of the limiting groove 11, and the sensors 3 are set one-to-one with the retainer pocket holes.

[0033] A steel ball counter 4 is positioned above the mold shaft 2. The steel ball counter 4 is provided with a counting channel 41 for rolling steel balls and counting them. The counting channel 41 is connected to the steel ball channel 22.

[0034] Embodiment 2 of the bearing steel ball loading device of the present invention is as follows: Figure 6-8 As shown, the differences between it and the embodiment are as follows:

[0035] In this embodiment, no steel ball counter is provided above the mold shaft 2. The mold shaft 2 includes a main shaft 24 and a mounting part 23. The steel ball channel 22 includes a first section 221 and a second section 222 located at the main shaft 24 and the mounting part 23, respectively. The first section 221 and the second section 222 are connected when the mold shaft 2 abuts against the limiting groove 11. The first section 221 is connected to the rear end face of the mold shaft 2, and the second section 222 is connected to the pressing groove 21. When the mold shaft 2 retracts away from the limiting groove 11, the mounting part 23 can slide between the main shaft 24 under its own weight. The second section 222 can be disengaged from the first section 221 under the drive of the mounting part 23.

[0036] The mounting part 23 is provided with a swinging member 5, which includes a snap-fit ​​part 51 and an abutment part 52. The snap-fit ​​part 51 and the abutment part 52 are respectively located at the second section 222 and the pressing groove 21. The abutment part 52 can drive the swinging member 5 to swing until its snap-fit ​​part 51 extends into the second section 222 when pushed by a steel ball. When the pressing groove 21 is empty, the snap-fit ​​part 51 can drive the swinging member 5 to swing until its abutment part extends into the pressing groove 21 when pushed by a steel ball.

[0037] The main shaft 24 and the mounting part 23 are respectively provided with a plurality of vertically extending guide protrusions 241 and guide grooves.

[0038] The above examples are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. A bearing steel ball loading device, characterized in that: The device includes a base and a mold shaft. The base has a limiting groove for mounting a retainer. The mold shaft is rotatably telescopic, and its front end can extend to abut against the center of the limiting groove. The mold shaft has a pressing groove and a steel ball channel for rolling steel balls. The steel ball channel connects the rear end face of the mold shaft and the pressing groove. The pressing groove is located at the front end of the mold shaft, and its opening is opposite to the retainer. The pressing groove extends circumferentially to one side and gradually decreases in size. The mold shaft is rotatable to the other side. The mold shaft includes a mounting portion located at its front end, which is annularly arranged. The outer diameter of the mounting part is spaced apart from the cage, and the distance between the outer diameter of the mounting part and the cage is equal to the radius of the steel ball. The pressing groove is located at the mounting part. The mold shaft includes a main shaft. The steel ball channel includes a first section and a second section located at the main shaft and the mounting part, respectively. The first section and the second section are connected. The first section is connected to the rear end face of the mold shaft. The second section is connected to the pressing groove. When the mold shaft retracts away from the limiting groove, the mounting part can slide guidedly with the main shaft under its own weight. The second section can be disengaged from the first section under the action of the mounting part.

2. The bearing steel ball filling device according to claim 1, characterized in that: The limiting groove is provided with an annular protrusion, which can form a sleeve fit with the cage.

3. The bearing steel ball filling device according to claim 1, characterized in that: Several sensors are provided on the peripheral wall of the limiting groove, and the sensors are arranged one-to-one with the retainer pocket holes.

4. The bearing steel ball filling device according to claim 1, 2, or 3, characterized in that: It includes a steel ball counter disposed above the mold shaft, wherein the steel ball counter is provided with a counting channel for rolling steel balls and counting them, and the counting channel is connected to the steel ball channel.

5. The bearing steel ball filling device according to claim 1, characterized in that: The mounting part is provided with a swinging component, which includes a snap-fit ​​part and a stop part. The snap-fit ​​part and the stop part are respectively located at the second section and the pressing groove. The stop part can drive the swinging component to swing until its snap-fit ​​part extends into the second section when pushed by the steel ball. When the pressing groove is empty, the snap-fit ​​part can drive the swinging component to swing until its stop part extends into the pressing groove when pushed by the steel ball.

6. The bearing steel ball filling device according to claim 1, characterized in that: The main shaft and the mounting part are respectively provided with several vertically extending guide protrusions and guide grooves.

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