A ball adding device for double row ball bearing

Abstract

The present invention relates to the technical field of bearing assembly, and discloses a ball adding device for a double-row ball bearing, comprising a workbench, on which a first ball adding mechanism and a second ball adding mechanism are sequentially arranged along the transmission direction of the double-row ball bearing, the first ball adding mechanism being configured to fill steel balls into the first channel of the double-row ball bearing; the second ball adding mechanism being configured to fill steel balls into the second channel of the double-row ball bearing; and a push-pull mechanism being further arranged on the workbench, the push-pull mechanism being configured to push and pull the second ball adding mechanism, so as to drive the second ball adding mechanism to drive the inner ring of the double-row ball bearing to translate relative to the outer ring. The first ball adding mechanism and the second ball adding mechanism can respectively and simultaneously fill steel balls into the first channel and the second channel of the double-row ball bearing, and after the ball adding is completed, the push-pull mechanism is used to pull the second ball adding mechanism, so that the inner ring and the outer ring of the double-row ball bearing after the ball adding are on the same axis, and the corresponding steel balls are kept in the corresponding first channel and the second channel, and the ball adding efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of bearing assembly, in particular to a ball adding device for a double-row ball bearing. Background Art

[0002] Bearings are one of the important parts in contemporary mechanical equipment. Its main function is to support the rotating body of the machine, reduce the friction coefficient during its movement, and ensure its rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings. Rolling bearings generally consist of four parts: outer ring, inner ring, rolling element and cage. According to the shape of the rolling element, rolling bearings are divided into two categories: ball bearings and roller bearings. When installing ball bearings, the steel balls need to be accurately positioned one by one in the groove between the inner ring and the outer ring. Especially for double-row ball bearings, the two rows of steel balls need to be injected into the two rows of grooves respectively.

[0003] The existing double-row ball bearing loading device usually fills the groove on one side with steel balls, then rotates the bearing as a whole or rotates the steel ball installation mechanism, and then puts the steel balls into the groove on the other side. Moreover, the existing double-row ball bearing loading device is inefficient, and can only load one double-row ball bearing in the same period of time.

[0004] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a new type of double-row ball bearing ball adding device to make it more valuable for industrial use. Summary of the invention

[0005] The purpose of the present invention is to provide a ball adding device for a double-row ball bearing, which can add balls to two double-row ball bearings in the same time period, and when adding balls to the two rows of grooves in turn, there is no need to rotate the double-row ball bearings or the ball adding components.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A ball adding device for a double-row ball bearing comprises a workbench, on which a first ball adding mechanism and a second ball adding mechanism are sequentially arranged along the transmission direction of the double-row ball bearing, wherein:

[0008] The first ball adding mechanism is configured to fill steel balls into the first communication channel of the double row ball bearing;

[0009] The second ball adding mechanism is configured to fill steel balls into the second groove of the double-row ball bearing;

[0010] The workbench is also provided with a push-pull mechanism, which is configured to push and pull the second ball adding mechanism to drive the second ball adding mechanism to drive the inner ring of the double-row ball bearing to translate relative to the outer ring.

[0011] As a preferred solution of the ball adding device of the double-row ball bearing, the first ball adding mechanism includes a first support and a first ball discharging mechanism, a first inner ring abutting mechanism and a first ball pushing mechanism arranged on the first support, wherein:

[0012] The first ball delivery mechanism is configured to deliver steel balls to the first channel of the double-row ball bearing;

[0013] The first inner ring abutting mechanism is configured to abut against the inner ring of the double-row ball bearing and cause the inner ring to be offset relative to the outer ring of the double-row ball bearing;

[0014] The first ball pushing mechanism is connected to the first inner ring abutting mechanism and can be raised and lowered relative to the first inner ring abutting mechanism. The first ball pushing mechanism is configured to push a required number of steel balls into the first channel.

[0015] As a preferred solution of the ball adding device of the above-mentioned double-row ball bearing, the first ball outlet mechanism includes a first ball outlet channel arranged obliquely and a first ball outlet device connected to the first ball outlet channel, the ball outlet port of the first ball outlet channel can connect to the gap between the inner ring and the outer ring of the double-row ball bearing, and the first ball outlet device is configured to transport steel balls into the first ball outlet channel.

[0016] As a preferred solution of the ball adding device of the double-row ball bearing, the first inner ring abutting mechanism comprises a first push rod, a guide rod and a first push rod driving member, wherein:

[0017] The first push rod is movably disposed on the first support, and the first push rod can be inserted into the inner ring of the double-row ball bearing and drive the inner ring to deviate relative to the outer ring of the double-row ball bearing;

[0018] The guide rod is coaxially sleeved with the first push rod, and the end of the guide rod is provided with a first arc-shaped boss coaxial with the guide rod, and the first arc-shaped boss can extend between the inner ring and the outer ring of the double-row ball bearing, and the outer wall of the guide rod is provided with a first guide groove along its axial direction, and the first guide groove is configured to guide the steel ball coming out of the ball outlet of the first ball outlet channel into the first channel;

[0019] The first push rod driving component is configured to drive the first push rod and the guide rod to rise and fall relative to the first support at the same time.

[0020] As a preferred solution of the ball adding device of the above-mentioned double-row ball bearing, the first ball pushing mechanism includes a first push rod and a first push rod driving component, the first push rod is slidingly matched with the first guide groove, the first push rod driving component is configured to drive the first push rod to rise and fall along the first guide groove, and the first push rod can resist the ball outlet of the first ball outlet channel.

[0021] As a preferred solution of the ball adding device of the double-row ball bearing, the second ball adding mechanism includes a second support and a second ball discharging mechanism, a second inner ring abutting mechanism, a ball blocking mechanism and a second ball pushing mechanism arranged on the second support, wherein:

[0022] The second ball delivery mechanism is configured to deliver steel balls to the second communication channel of the double-row ball bearing;

[0023] The second inner ring abutting mechanism is configured to abut against the inner ring of the double-row ball bearing;

[0024] The ball blocking mechanism can enter and exit between the inner ring and the outer ring of the double-row ball bearing, and the ball blocking mechanism is configured to separate the steel balls in the first channel;

[0025] The second ball pushing mechanism is configured to push a required number of steel balls into the second channel.

[0026] As a preferred solution of the ball adding device of the above-mentioned double-row ball bearing, the second ball outlet mechanism includes a second ball outlet channel arranged obliquely and a second ball outlet device connected to the second ball outlet channel, the ball outlet port of the second ball outlet channel can connect to the gap between the inner ring and the outer ring of the double-row ball bearing, and the second ball outlet device is configured to transport steel balls into the second ball outlet channel.

[0027] As a preferred solution of the ball adding device of the double-row ball bearing, the second inner ring abutting mechanism includes a second push rod, a second push rod lifting driving member and a second push rod rotating driving member, wherein:

[0028] The second push rod is movably arranged on the second support, the second push rod can be inserted into the inner ring when the inner ring of the double-row ball bearing is offset relative to the outer ring, and a guide sleeve is rotatably sleeved near the end of the second push rod, and the end of the guide sleeve is provided with a second arc-shaped boss coaxial with the guide sleeve, the second arc-shaped boss can extend between the inner ring and the outer ring of the double-row ball bearing, and the outer wall of the guide sleeve is provided with a second guide groove along the axial direction thereof, and the second guide groove is configured to guide the steel ball coming out of the ball outlet of the second ball outlet channel into the second channel;

[0029] The second push rod lifting driving member is configured to drive the second push rod to rise and fall relative to the second support;

[0030] The second push rod rotation driving member is configured to drive the second push rod to rotate relative to the second support.

[0031] As a preferred solution of the ball adding device of the above-mentioned double-row ball bearing, the ball blocking mechanism includes an arc-shaped blocking plate and a connecting rod, the width of the blocking plate is smaller than the distance between the inner ring and the outer ring of the double-row ball bearing; one end of the connecting rod is connected to the blocking plate, and the other end is connected to the second push rod.

[0032] As a preferred solution of the ball adding device of the above-mentioned double-row ball bearing, the second ball pushing mechanism includes a second push rod and a second push rod driving member, the second push rod is slidingly matched with the second guide groove, the second push rod driving member is configured to drive the second push rod to rise and fall along the second guide groove, and the second push rod can resist the ball outlet of the second ball outlet channel.

[0033] The beneficial effects of the present invention are as follows: the first ball adding mechanism and the second ball adding mechanism can be used to add balls to two double-row ball bearings respectively, and the ball adding efficiency is high. Moreover, when adding balls to the second groove after adding balls to the first groove, the balls in the first groove can be separated and added to the second groove by rotating the baffle plate, without rotating the double-row ball bearing or the ball adding mechanism. After the ball adding is completed, the second ball adding mechanism is pulled by the push-pull mechanism, so that the inner ring and the outer ring of the double-row ball bearing after the balls are added are on the same axis, and the corresponding steel balls are kept in the corresponding first communication channel and the second groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a three-dimensional diagram of a ball adding device for a double-row ball bearing provided in a specific embodiment of the present invention;

[0035] Figure 2 is a three-dimensional view from another angle of the ball adding device of the double-row ball bearing provided by the specific embodiment of the present invention;

[0036] Figure 3 It is a three-dimensional diagram of a first ball adding mechanism in a ball adding device for a double-row ball bearing provided in a specific embodiment of the present invention;

[0037] Figure 4 It is a three-dimensional view from another angle of the first ball adding mechanism in the ball adding device of the double-row ball bearing provided by the specific embodiment of the present invention;

[0038] Figure 5 yes Figure 3 The main view;

[0039] Figure 6 yes Figure 5 Section view along line AA;

[0040] Figure 7 It is an assembly drawing of the first push rod and the guide rod in the first ball adding mechanism;

[0041] Figure 8It is a stereoscopic view of a second ball adding mechanism in a ball adding device for a double-row ball bearing provided in a specific embodiment of the present invention;

[0042] Fig. 9 It is a three-dimensional view from another angle of the second ball adding mechanism in the ball adding device of the double-row ball bearing provided by the specific embodiment of the present invention;

[0043] Fig.10 yes Figure 8 The main view;

[0044] Fig.11 yes Fig.10 Sectional view along line BB;

[0045] Fig.12 It is an assembly diagram of the second push rod and the ball blocking mechanism in the second ball adding mechanism;

[0046] Fig.13 It is a structural schematic diagram of the ball blocking mechanism;

[0047] Fig.14 It is a structural schematic diagram of a mold for transporting double-row ball bearings in the present invention.

[0048] In the figure: 100-working table, 200-first ball adding mechanism, 210-first support, 220-first ball discharging mechanism, 221-first ball discharging channel, 222-first ball discharging device, 230-first inner ring abutting mechanism, 231-first ejector, 232-guide rod, 2321-first arc-shaped boss, 2322-first guide groove, 234-first ejector driving member, 240-first ball pushing mechanism, 241-first push rod, 242-second push rod driving member, 300-second ball adding mechanism, 310-second support, 320-second ball discharging mechanism , 321-second ball outlet channel, 322-second ball outlet, 330-first inner ring supporting mechanism, 331-second push rod, 332-second push rod lifting drive member, 333-second push rod rotation drive member, 340-ball blocking mechanism, 341-blocking plate, 342-connecting rod, 350-second ball pushing mechanism, 351-second push rod, 352-second push rod driving member, 400-double row ball bearing, 500-push-pull mechanism, 600-mold, 610-support plate, 620-outer ring positioning platform, 630-inner ring positioning platform, 640-positioning column. DETAILED DESCRIPTION

[0049] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] like Figures 1 to 2As shown, the ball adding device of the double-row ball bearing of the present invention comprises a workbench 100, on which a first ball adding mechanism 200 and a second ball adding mechanism 300 are sequentially arranged along the transmission direction of the double-row ball bearing 400. The first ball adding mechanism 200 is configured to fill steel balls into the first channel of the double-row ball bearing 400; the second ball adding mechanism 300 is configured to fill steel balls into the second channel of the double-row ball bearing 400. A push-pull mechanism 500 is also arranged on the workbench 100, and the push-pull mechanism 500 is configured to push and pull the second ball adding mechanism 300, so as to drive the second ball adding mechanism 300 to drive the inner ring of the double-row ball bearing 400 to translate relative to the outer ring. In addition, the double-row ball bearing 400 is placed on a mold 600, and the mold 600 carries the double-row ball bearing 400 and moves along the conveying line in the transmission direction. That is, when the inner ring of the double-row ball bearing 400 is offset relative to the outer ring, the first ball adding mechanism 200 and the second ball adding mechanism 300 respectively fill steel balls into the first channel and the second channel of the double-row ball bearing 400. After the balls are added, the push-pull mechanism 500 is used to pull the second ball adding mechanism 300, so that the inner ring and the outer ring of the double-row ball bearing 400 after the balls are added are on the same axis, and the corresponding steel balls are kept in the corresponding first channel and second channel.

[0053] Specifically, Figures 3 to 7 As shown, the first ball adding mechanism 200 includes a first support 210 and a first ball discharging mechanism 220, a first inner ring abutting mechanism 230 and a first ball pushing mechanism 240 disposed on the first support 210. The first ball discharging mechanism 220 is configured to deliver steel balls to the first channel of the double-row ball bearing 400; the first inner ring abutting mechanism 230 is configured to abut the inner ring of the double-row ball bearing 400 and make the inner ring offset relative to the outer ring of the double-row ball bearing 400; the first ball pushing mechanism 240 is connected to the first inner ring abutting mechanism 230 and can be raised and lowered relative to the first inner ring abutting mechanism 230, and the first ball pushing mechanism 240 is configured to push a required number of steel balls into the first channel. That is, the first inner ring abutting mechanism 230 plays a role in positioning the inner ring of the double-row ball bearing 400 and driving the inner ring to deviate from the outer ring, so as to form a ball filling gap between the inner ring and the outer ring, so as to facilitate the steel balls to enter the first channel. In order to keep the steel balls in the first groove and prevent them from running away in the ball-filling gap formed between the inner ring and the outer ring, the mold 600 in the present invention plays a role in supporting the steel balls in the first groove. Fig.14As shown, the mold 600 includes a support plate 610, on which are disposed two opposite and arc-shaped outer ring positioning platforms 620, an inner ring positioning platform 630 coaxial with the outer ring positioning platform 620 and arc-shaped, and a plurality of positioning columns 640, wherein the inner ring positioning platform 630 is higher than the outer ring positioning platform 620 and lower than the height of the first groove of the double-row ball bearing 400, and each positioning column 640 is evenly distributed on the outer periphery of the two outer ring positioning platforms 620, and each positioning column 640 and the outer ring positioning platform 620 form a clamping double-row ball bearing. The gap of the outer ring of the ball bearing 400, the double-row ball bearing 400 is placed on the inner side of the inner ring positioning platform 630, that is, the inner ring positioning platform 630 is located between the outer ring and the inner ring of the double-row ball bearing 400. When filling the balls into the first groove, each steel ball falls on the inner ring positioning platform 630. Because the inner ring is relatively cheaper than the outer ring, the ball filling gap between the inner ring and the outer ring presents a trend of gradually decreasing from the side of the inner ring close to the inner ring positioning platform 630 to the side away from the inner ring positioning platform. Therefore, the steel balls will only stay on the inner ring positioning platform 630.

[0054] The first ball outlet mechanism 220 in the present invention includes a first ball outlet channel 221 arranged obliquely, and a first ball outlet 222 connected to the first ball outlet channel 221. The ball outlet of the first ball outlet channel 221 can connect to the gap between the inner ring and the outer ring of the double-row ball bearing 400, and the first ball outlet 222 is configured to convey steel balls into the first ball outlet channel 221. The first ball outlet channel 221 is arranged obliquely to facilitate the steel balls to roll into the gap between the inner ring and the outer ring of the double-row ball bearing 400; the first ball outlet 222 is a commonly used mechanism in the art and will not be described in detail here.

[0055] Regarding the first inner ring abutting mechanism 230 , the first inner ring abutting mechanism 230 in this embodiment includes a first push rod 231 , a guide rod 232 and a first push rod driving member 234 . Among them, the first push rod 231 is movably arranged on the first support 210, and the first push rod 231 can be inserted into the inner ring of the double-row ball bearing 400 and drive the inner ring to be offset relative to the outer ring of the double-row ball bearing 400; the guide rod 232 is coaxially sleeved with the first push rod 231, and the end of the guide rod 232 is provided with a first arc-shaped boss 2321 coaxial therewith, and the first arc-shaped boss 2321 can extend between the inner ring and the outer ring of the double-row ball bearing 400, and the outer wall of the guide rod 232 is provided with a first guide groove 2322 along its axial direction, and the first guide groove 2322 is configured to guide the steel ball coming out of the ball outlet of the first ball outlet channel 221 into the first channel; the first push rod driving member 234 (such as a cylinder) is configured to drive the first push rod 231 and the guide rod 232 to rise and fall relative to the first support 210 at the same time. The first arc-shaped boss 2321 is provided so that when the first push rod 231 and the guide rod 232 descend, the first arc-shaped boss 2321 enters between the outer ring and the inner ring of the double-row ball bearing 400 and contacts the inner ring positioning boss 630 , thereby allowing the steel balls flowing out of the first guide groove 2322 to be neatly placed on the inner ring positioning boss 630 .

[0056] In addition, the first ball pushing mechanism 240 includes a first push rod 241 and a first push rod driving member 242. The first push rod 241 is slidably matched with the first guide groove 2322. The first push rod driving member 242 is configured to drive the first push rod 241 to rise and fall along the first guide groove 2322, and the first push rod 241 can resist the ball outlet of the first ball outlet channel 221. The first ball pushing mechanism 240 can make each steel ball smoothly enter the first channel.

[0057] like Figures 8 to 13 As shown, the second ball adding mechanism 300 in the present invention comprises a second support 310, a second ball discharging mechanism 320, a second inner ring abutting mechanism 330, a ball blocking mechanism 340 and a second ball pushing mechanism 350 arranged on the second support 310. The second ball discharging mechanism 320 is configured to deliver steel balls to the second channel of the double-row ball bearing 400; the second inner ring abutting mechanism 330 is configured to abut the inner ring of the double-row ball bearing 400; the ball blocking mechanism 340 can enter and exit between the inner ring and the outer ring of the double-row ball bearing, and the ball blocking mechanism 340 is configured to separate the steel balls in the first channel; and the second ball pushing mechanism 350 is configured to push the required number of steel balls into the second channel.

[0058] Similarly, the principle of the second ball outlet mechanism 320 is the same as the first ball outlet mechanism 220. The second ball outlet mechanism 320 includes a second ball outlet channel 321 that is inclined and a second ball outlet device 322 that is connected to the second ball outlet channel 321. The ball outlet port of the second ball outlet channel 321 can connect to the gap between the inner ring and the outer ring of the double-row ball bearing 400. The second ball outlet device 322 is configured to transport steel balls into the second ball outlet channel 321.

[0059] As for the second inner ring abutting mechanism 230 , the second inner ring abutting mechanism 230 in this embodiment includes a second push rod 331 , a second push rod lifting and lowering driving member 332 , and a second push rod rotating driving member 333 . Among them, the second push rod 331 is movably arranged on the second support 310, and the second push rod 331 can be inserted into the inner ring when the inner ring of the double-row ball bearing 400 is offset relative to the outer ring, and the second push rod 331 is rotatably sleeved with a guide sleeve 3311 near its end, and the end of the guide sleeve 3311 is provided with a second arc-shaped boss 3312 coaxial with the second arc-shaped boss 3312, and the second arc-shaped boss 3312 can extend between the inner ring and the outer ring of the double-row ball bearing 400, and the outer wall of the guide sleeve 3311 is provided with a second guide groove 3313 along its axial direction, and the second guide groove 3313 is configured to guide the steel ball coming out of the ball outlet of the second ball outlet channel 321 into the second channel; the second push rod lifting drive member 332 is configured to drive the second push rod 331 to rise and fall relative to the second support 310; the second push rod rotation drive member 333 is configured to drive the second push rod 331 to rotate relative to the second support 310. That is, driven successively by the second push rod lifting drive member 332 (such as a cylinder) and the second push rod rotating drive member 333 (such as a motor), the second push rod 331 can be lifted and rotated successively. After the second push rod 331 descends, the end of the second push rod 331 is inserted into the inner ring of the double-row ball bearing. At this time, the inner ring is still in an eccentric state relative to the outer ring. At the same time, the ball blocking mechanism 340 also descends with the second push rod 331 and enters between the inner ring and the outer ring of the double-row ball bearing. The second push rod 331 drives the ball blocking mechanism 340 to rotate, so that the ball blocking mechanism 340 rotates to the bottom of the second channel and blocks the steel balls in the first communication channel. The second ball outlet mechanism 320 transports the steel balls into the second channel.

[0060] In order to enable the ball blocking mechanism 340 to be screwed into the space between the inner ring and the outer ring of the double-row ball bearing and to block the steel ball in the first channel, the ball blocking mechanism 340 in the present invention includes an arc-shaped blocking plate 341 and a connecting rod 342, wherein the width of the blocking plate 341 is smaller than the distance between the inner ring and the outer ring of the double-row ball bearing 400; one end of the connecting rod 342 is connected to the blocking plate 341, and the other end is connected to the second push rod 331.

[0061] Similar to the guide rod 232 in the first ball adding mechanism 200, the setting of the guide sleeve 3311 in the second ball adding mechanism 300 can utilize the second arc-shaped boss 3312 of the guide sleeve 3311. When the second push rod 331 descends, the second arc-shaped boss 3312 enters between the outer ring and the inner ring of the double-row ball bearing 400 and contacts the baffle 341, so that the steel balls flowing out of the second guide groove 3313 are neatly placed on the baffle 341. When all the steel balls in the second channel are added, the push-pull mechanism 500 pulls the second ball adding mechanism 300 backwards to make the inner ring and outer ring of the double-row ball bearing coaxial, and then drives the second push rod 331 to rotate. The second push rod 331 drives the baffle 341 to rotate to a position without steel balls, and then drives the second push rod 331 to rise, so that the baffle 341 is separated from the double-row ball bearing and finally returns to its position. Regarding the structure of the push-pull mechanism 500 pushing and pulling the second ball adding mechanism 300, the second support 310 of the second ball adding mechanism 300 can be slidably connected to the workbench 100, and the second ball adding mechanism 300 can be smoothly pushed and pulled by connecting two parallel cylinders to the second support 310.

[0062] In order to make each steel ball smoothly enter the second channel, the second ball pushing mechanism 350 in the present invention includes a second push rod 351 and a second push rod driving member 352. The second push rod 351 is slidably matched with the second guide groove 3313. The second push rod driving member 352 is configured to drive the second push rod 351 to rise and fall along the second guide groove 3313, and the second push rod 352 can resist the ball outlet of the second ball outlet channel 321.

[0063] The working principle of the ball adding device of the double-row ball bearing of the present invention is as follows: the mold 600 first transports the double-row ball bearing 400 to the bottom of the first ball adding mechanism 200 along the conveyor line, and the first push rod 231 in the first inner ring abutting mechanism 230 descends and extends into the inner ring of the double-row ball bearing. When the first push rod 231 extends into the inner ring, the inner ring is offset outward, so that the gap on one side between the inner ring and the outer ring becomes larger. At this time, the first ball outlet mechanism 220 is started to transport steel balls into the first channel, and each steel ball falls one by one along the first guide groove 2322. When the first ball outlet mechanism 220 has produced the required number of steel balls, the first push rod 241 descends and pushes the steel balls so that each steel ball is located in a row on the inner ring positioning boss 630, and then the first push rod 231 and the first push rod 241 rise, and the mold 600 continues to carry the double-row ball bearing 400 to move to the bottom of the second ball adding mechanism 300. At this time, the first push rod 231 in the second inner ring abutting mechanism 330 The second push rod 331 descends and extends into the inner ring of the double-row ball bearing. At this time, the inner ring is still in a deviated state relative to the outer ring, driving the second push rod 331 to rotate so that the baffle 341 is located below the second channel and covers the steel balls in the first channel. At this time, the second ball outlet mechanism 320 is started to transport the steel balls into the second channel, and each steel ball falls one by one along the second guide groove 3313. When the second ball outlet mechanism 320 has produced the required number of steel balls, the second push rod 351 descends and pushes the steel balls so that each steel ball is located in a row on the baffle 341. Then, the push-pull mechanism 500 pulls back the second ball adding mechanism 300 to make the inner ring and outer ring of the double-row ball bearing coaxial, and then drives the second push rod 331 to rotate. The second push rod 331 drives the baffle 341 to rotate to a position without steel balls. Then, the second push rod 331 is driven to drive the ball baffle mechanism 340 to rise and return, and the mold 600 carries the double-row ball bearing that has been added with balls to be transported downstream.

[0064] It can be seen that the present invention utilizes the first ball adding mechanism 200 and the second ball adding mechanism 300 to add balls to the two double-row ball bearings 400 respectively and simultaneously, and the ball adding efficiency is high. Moreover, when adding balls to the second channel after adding balls to the first channel, it is only necessary to rotate the baffle 341 to separate the steel balls in the first channel and add balls to the second channel, without rotating the double-row ball bearing 400 or the ball adding mechanism. After the ball adding is completed, the push-pull mechanism 500 is used to pull the second ball adding mechanism, so that the inner ring and the outer ring of the double-row ball bearing 400 after the balls are added are on the same axis, and the corresponding steel balls are kept in the corresponding first and second channels. The ball adding accuracy is high, and this ball adding method will not cause damage to the steel balls. Moreover, the overall structure of the ball adding device of the double-row ball bearing is compact, which achieves the requirements of completing complex processes and having a small overall volume.

[0065] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A ball adding device for a double row ball bearing, characterized in that: The invention comprises a workbench (100), on which a first ball adding mechanism (200) and a second ball adding mechanism (300) are sequentially arranged along the transmission direction of the double-row ball bearing (400), wherein: The first ball adding mechanism (200) is configured to fill steel balls into the first groove of the double-row ball bearing (400); The second ball adding mechanism (300) is configured to fill steel balls into the second groove of the double-row ball bearing (400); The workbench (100) is also provided with a push-pull mechanism (500), and the push-pull mechanism (500) is configured to push and pull the second ball adding mechanism (300) to drive the second ball adding mechanism (300) to drive the inner ring of the double-row ball bearing (400) to translate relative to the outer ring; The first ball adding mechanism (200) comprises a first support (210), a first ball discharging mechanism (220) arranged on the first support (210), a first inner ring abutting mechanism (230) and a first ball pushing mechanism (240), wherein: The first ball discharging mechanism (220) is configured to deliver steel balls to the first channel of the double-row ball bearing (400); The first inner ring abutting mechanism (230) is configured to abut against the inner ring of the double-row ball bearing (400) and cause the inner ring to be offset relative to the outer ring of the double-row ball bearing (400); The first ball pushing mechanism (240) is connected to the first inner ring abutting mechanism (230) and can be lifted and lowered relative to the first inner ring abutting mechanism (230), and the first ball pushing mechanism (240) is configured to push a required number of steel balls into the first channel; The first ball outlet mechanism (220) comprises a first ball outlet channel (221) arranged obliquely, and a first ball outlet device (222) connected to the first ball outlet channel (221), wherein the ball outlet of the first ball outlet channel (221) can connect to the gap between the inner ring and the outer ring of the double-row ball bearing (400), and the first ball outlet device (222) is configured to transport steel balls into the first ball outlet channel (221); The first inner ring abutting mechanism (230) comprises a first push rod (231), a guide rod (232) and a first push rod driving member (234), wherein: The first push rod (231) is movably arranged on the first support (210), and the first push rod (231) can be inserted into the inner ring of the double-row ball bearing (400) and drive the inner ring to deviate relative to the outer ring of the double-row ball bearing (400); The guide rod (232) is coaxially sleeved with the first push rod (231), and the end of the guide rod (232) is provided with a first arc-shaped boss (2321) coaxial therewith, and the first arc-shaped boss (2321) can extend between the inner ring and the outer ring of the double-row ball bearing (400), and the outer wall of the guide rod (232) is provided with a first guide groove (2322) along its axial direction, and the first guide groove (2322) is configured to guide the steel ball coming out of the ball outlet of the first ball outlet channel (221) into the first channel; The first push rod driving member (234) is configured to drive the first push rod (231) and the guide rod (232) to rise and fall relative to the first support (210) simultaneously.

2. The ball adding device for a double row ball bearing according to claim 1, characterized in that: The first ball pushing mechanism (240) includes a first push rod (241) and a first push rod driving member (242), the first push rod (241) slidingly cooperates with the first guide groove (2322), the first push rod driving member (242) is configured to drive the first push rod (241) to rise and fall along the first guide groove (2322), and the first push rod (241) can resist the ball outlet of the first ball outlet channel (221).

3. The ball adding device for a double row ball bearing according to claim 1, characterized in that: The second ball adding mechanism (300) comprises a second support (310), a second ball discharging mechanism (320) arranged on the second support (310), a second inner ring abutting mechanism (330), a ball blocking mechanism (340) and a second ball pushing mechanism (350), wherein: The second ball discharging mechanism (320) is configured to deliver steel balls to the second communication channel of the double-row ball bearing (400); The second inner ring abutting mechanism (330) is configured to abut against the inner ring of the double-row ball bearing (400); The ball blocking mechanism (340) can enter and exit between the inner ring and the outer ring of the double-row ball bearing, and the ball blocking mechanism (340) is configured to separate the steel balls in the first groove; The second ball pushing mechanism (350) is configured to push a required number of steel balls into the second channel.

4. The ball adding device for a double row ball bearing according to claim 3, characterized in that: The second ball outlet mechanism (320) comprises a second ball outlet channel (321) arranged obliquely, and a second ball outlet device (322) connected to the second ball outlet channel (321); the ball outlet of the second ball outlet channel (321) can connect to the gap between the inner ring and the outer ring of the double-row ball bearing (400); and the second ball outlet device (322) is configured to transport steel balls into the second ball outlet channel (321).

5. The ball adding device for a double row ball bearing according to claim 4, characterized in that: The second inner ring abutting mechanism (230) comprises a second push rod (331), a second push rod lifting driving member (332) and a second push rod rotating driving member (333), wherein: The second push rod (331) is movably arranged on the second support (310), and the second push rod (331) can be inserted into the inner ring of the double-row ball bearing (400) when the inner ring is offset relative to the outer ring, and a guide sleeve (3311) is rotatably sleeved near the end of the second push rod (331), and the end of the guide sleeve (3311) is provided with a second arc-shaped boss (3312) coaxial with the guide sleeve (3311), and the second arc-shaped boss (3312) can extend between the inner ring and the outer ring of the double-row ball bearing (400), and the outer wall of the guide sleeve (3311) is provided with a second guide groove (3313) along its axial direction, and the second guide groove (3313) is configured to guide the steel ball coming out of the ball outlet of the second ball outlet channel (321) into the second channel; The second push rod lifting driving member (332) is configured to drive the second push rod (331) to rise and fall relative to the second support (310); The second push rod rotation driving member (333) is configured to drive the second push rod (331) to rotate relative to the second support (310).

6. The ball adding device for a double row ball bearing according to claim 5, characterized in that: The ball blocking mechanism (340) comprises an arc-shaped blocking plate (341) and a connecting rod (342); the width of the blocking plate (341) is smaller than the distance between the inner ring and the outer ring of the double-row ball bearing (400); one end of the connecting rod (342) is connected to the blocking plate (341), and the other end is connected to the second push rod (331).

7. The ball adding device for a double row ball bearing according to claim 5, characterized in that: The second ball pushing mechanism (350) includes a second push rod (351) and a second push rod driving member (352), the second push rod (351) is slidably matched with the second guide groove (3313), the second push rod driving member (352) is configured to drive the second push rod (351) to rise and fall along the second guide groove (3313), and the second push rod (351) can resist the ball outlet of the second ball outlet channel (321).

Images