CN218408210U

CN218408210U - Double-groove bearing sleeve-assembling and ball-adding equipment

Info

Publication number: CN218408210U
Application number: CN202222836001.2U
Authority: CN
Inventors: 郁彬; 于洋; 周佳
Original assignee: Kunshan Aodelu Automation Technology Co ltd
Current assignee: Kunshan Aodelu Automation Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-01-31
Anticipated expiration: 2032-10-26

Abstract

The utility model relates to the technical field of bearing processing, and discloses a double-groove bearing sleeve-fitting ball-adding device, which is characterized in that a fixed plate in a material storage mechanism is lifted to enable a support plate in an empty state to be aligned with a double-groove bearing to be stored, and the double-groove bearing is moved to the support plate by a carrying mechanism to be stored; when the inner ring and the outer ring need to be sleeved, the double-groove bearing with the corresponding size is exposed in a lifting fixing plate mode, then the double-groove bearing is transferred to a feeding mechanism by a carrying mechanism, the outer ring and the outer ring are respectively clamped by the two feeding mechanisms and placed on a positioning plate jacked by the first jacking mechanism, the sleeving is realized, and therefore, the structure for storing and discharging the measured outer ring and the measured inner ring is simple and convenient to operate.

Description

Double-groove bearing sleeve-assembling and ball-adding equipment

Technical Field

The utility model relates to a processing technology field of bearing especially relates to a two ditch bearing fit add ball equipment.

Background

The bearing mainly comprises an inner ring and an outer ring, and when the bearing is assembled, the inner ring and the outer ring which are matched in channel size need to be matched. In the existing bearing production line, after the inner ring and the outer ring are subjected to channel measurement, the inner ring and the outer ring can be respectively stored, and then the inner ring and the outer ring which are matched with each other in channel size are selected. For the storage structure, the structure adopted by the existing equipment is complex, and after the storage structure is used, the structure for releasing the inner ring and the outer ring is not simple enough, so that the sleeve combining efficiency is influenced.

In view of the above-mentioned defects, the present designer actively makes research and innovation to create a new-structure double-groove bearing fitting ball-adding device, so that it has more industrial utilization value.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two ditch bearing fit add ball equipment can access the inner and outer lane very conveniently to promote machining efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a double flute bearing closes cover and adds ball equipment, includes the workstation and set up in the unit that closes of workstation, add the ball unit, wherein:

the sleeve combining unit comprises an outer ring measuring and feeding part and an inner ring measuring and feeding part, the outer ring measuring and feeding part and the inner ring measuring and feeding part respectively comprise a channel measuring mechanism, a material storing mechanism, a feeding mechanism, a defective product discharging mechanism and a conveying mechanism, the material storing mechanism comprises a lifting fixing plate, and the fixing plate is provided with a plurality of supporting plates from top to bottom;

the ball feeding unit comprises a lower channel ball feeding mechanism, an upper channel ball feeding mechanism and a conveying mechanism, the conveying mechanism comprises a conveying support table, a conveying belt arranged below the conveying support table, a horizontal pushing mechanism and a first jacking mechanism and a second jacking mechanism which are respectively arranged at two ends of the conveying belt, the conveying support table is arranged below the lower channel ball feeding mechanism and the upper channel ball feeding mechanism, the conveying support table is configured to support a positioning plate, the conveying belt is configured to convey the positioning plate, the horizontal pushing mechanism is arranged between the fitting unit and the ball feeding unit, the horizontal pushing mechanism is configured to horizontally push the positioning plate jacked up by the first jacking mechanism from the conveying belt to the conveying support table, and the second jacking mechanism is configured to jack up the positioning plate to be separated from the conveying support table;

the two feeding mechanisms can respectively clamp the outer ring and the inner ring to be placed on the positioning plate jacked up by the first jacking mechanism.

As a preferable scheme of the above double-groove bearing sleeve-assembling ball-adding device, the groove measuring mechanism includes a support, a lifting plate capable of lifting and passing through the support, and a measuring head opposite to the lifting plate and located above the lifting plate.

As a preferable scheme of the above double-groove bearing sleeve-combining ball-adding device, the feeding mechanism includes a support, a rotary cylinder arranged on the support, and a clamping piece arranged at an output end of the rotary cylinder, and the clamping piece can lift relative to the support.

As a preferable mode of the above-mentioned double-groove bearing sleeve ball adding device, the defective product discharging mechanism includes a discharging passage provided in a conveying path of the conveying mechanism.

As a preferable scheme of the above-mentioned double-groove bearing sleeve-fitting ball-adding device, the lower-groove ball-adding mechanism includes a supporting column, an arc-shaped plate and a ball-discharging pipeline, the supporting column can extend into and support the inner ring of the double-groove bearing, the arc-shaped plate can be inserted between the inner ring and the outer ring of the double-groove bearing, and the arc-shaped plate is provided with a ball-discharging hole communicated with the ball-discharging pipeline.

As a preferred scheme of the above double-groove bearing sleeve-fitting ball-adding device, the upper-groove ball-adding mechanism includes a support frame, a ball-outputting assembly, an arc-shaped ball-outputting plate, a rotating shaft, an arc-shaped ball-blocking piece and a push-pull assembly, the ball-outputting assembly includes a ball-outputting pipe capable of lifting relative to the support frame, a ball-guiding plate located below the ball-outputting pipe, and a ball-pushing rod mounted at the bottom of the ball-outputting pipe; the arc-shaped ball outlet plate is sleeved with the rotating shaft rod, the arc-shaped ball outlet plate is provided with a sliding groove, and the ball pushing rod is in sliding fit with the sliding groove; the arc-shaped ball blocking piece is arranged on the arc-shaped ball outlet plate and is positioned below the arc-shaped ball outlet plate, and the arc-shaped ball blocking piece can extend into a position between the inner ring and the outer ring of the double-groove bearing; the push-pull assembly is configured to push and pull the support frame.

As a preferred embodiment of the above-mentioned double-groove bearing fitting ball-adding device, the positioning plate includes a plate body, an arc or annular support boss disposed on the plate body, an arc positioning plate disposed on the inner side of the support boss, and three positioning columns uniformly located on the periphery of the support boss, and the arc positioning plate is higher than the support boss.

As an optimal scheme of the double-groove bearing sleeve combining and ball adding device, a blanking unit is further arranged on the workbench and comprises a material pushing part, a material taking part and a blanking channel, the material pushing part is configured to push the double-groove bearing to the position of the material taking part, the blanking channel is provided with two blanking ports, and the material taking part is configured to clamp the double-groove bearing to one of the two blanking ports.

The beneficial effects of the utility model are that: the fixed plate in the material storage mechanism is lifted, so that the support plate in an empty state is aligned to the double-groove bearing to be stored, and the double-groove bearing is moved to the support plate by the conveying mechanism for storage; when the inner ring and the outer ring need to be sleeved, the double-groove bearing with the corresponding size is exposed in a lifting fixing plate mode, then the double-groove bearing is transferred to a feeding mechanism by a carrying mechanism, the outer ring and the outer ring are respectively clamped by the two feeding mechanisms and placed on a positioning plate jacked by the first jacking mechanism, the sleeving is realized, and therefore, the structure for storing and discharging the measured outer ring and the measured inner ring is simple and convenient to operate.

Drawings

Fig. 1 is a schematic structural diagram of a double-groove bearing sleeve-fitting ball-adding device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a conveying mechanism in a double-groove bearing sleeve ball adding device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a channel measuring mechanism in a double-groove bearing sleeve-joining ball-adding device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a material storage mechanism in a double-groove bearing sleeve-fitting ball-adding device according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a feeding mechanism in a double-groove bearing sleeve-fitting ball-adding device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a conveying mechanism in a double-groove bearing sleeve-joining ball-adding device according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a positioning plate in a double-groove bearing fitting ball adding device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a lower channel ball feeding mechanism in a double-groove bearing sleeve assembling ball feeding device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an upper groove ball adding mechanism in a double-groove bearing sleeve combining and ball adding device according to an embodiment of the present invention.

In the figure: 100-workbench, 200-fitting unit, 300-ball adding unit, 310-lower channel ball adding mechanism, 311-holding column, 312-arc plate, 313-ball outlet pipeline, 330-upper channel ball adding mechanism, 331-support frame, 332-ball outlet pipe, 333-ball guide plate, 334-ball pushing rod, 335-arc ball outlet plate, 336-arc ball baffle plate, 337-push-pull component, 338-rotating shaft rod, 350-conveying mechanism, 351-conveying support table, 352-conveying belt, 353-horizontal pushing mechanism, 354-first lifting mechanism, 355-second lifting mechanism, 360-positioning plate, 361-plate body, 362-support boss, 363-arc positioning plate, 364-positioning column, 400-outer ring measuring feeding mechanism, 410-channel measuring mechanism, 411-support, 412-lifting plate, 413-measuring head, 414-positioning clamping plate, 430-discharging mechanism, 431-fixing plate, 432-support plate, 450-feeding mechanism, 452-rotating cylinder, support-clamping member, 470-feeding port clamping member, 470-500-discharging channel, 630-discharging mechanism, 500-discharging channel measuring mechanism, 500-discharging mechanism, and discharging mechanism.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 9, the double-groove bearing sleeve-fitting ball-adding device of the present invention includes a workbench 100, and a sleeve-fitting unit 200 and a ball-adding unit 300 disposed on the workbench 100. The fitting unit 200 comprises an outer ring measuring and feeding component 400 and an inner ring measuring and feeding component 500, the outer ring measuring and feeding component 400 and the inner ring measuring and feeding component 500 respectively comprise a channel measuring mechanism 410, a material storage mechanism 430, a feeding mechanism 450, a defective product discharging mechanism 470 and a conveying mechanism 490, the material storage mechanism 430 comprises a fixing plate 431 capable of lifting, and the fixing plate 431 is provided with a plurality of supporting plates 432 from top to bottom; the ball adding unit 300 comprises a lower channel ball adding mechanism 310, an upper channel ball adding mechanism 330 and a conveying mechanism 350, wherein the conveying mechanism 350 comprises a conveying support table 351, a conveying belt 352 arranged below the conveying support table 351, a horizontal pushing mechanism 353, and a first jacking mechanism 354 and a second jacking mechanism 355 which are respectively arranged at two ends of the conveying belt 352, the conveying support table 351 is arranged below the lower channel ball adding mechanism 310 and the upper channel ball adding mechanism 330, the conveying support table 351 is configured to support a positioning plate 360, the conveying belt 352 is configured to convey the positioning plate 360, the horizontal pushing mechanism 353 is arranged between the fitting unit 200 and the ball adding unit 300, the horizontal pushing mechanism 353 is configured to horizontally push the positioning plate 360 lifted up by the first jacking mechanism 354 from the conveying belt 352 to the conveying support table 351, and the second jacking mechanism 355 is configured to lift the positioning plate 360 up to separate from the conveying support table 351; the two feeding mechanisms 450 can respectively clamp the outer ring and the inner ring to be placed on the positioning plate 360 jacked up by the first jacking mechanism 354.

The utility model discloses well outer lane is measured material loading part 400 and the inner circle and is measured material loading part 500 and set up side by side, carries out the material loading of outer lane and inner circle simultaneously, grabs outer lane and inner circle from upstream equipment respectively by two arms 700 and comes. The conveying mechanism 490 is used for conveying the materials to the channel measuring mechanism, as shown in fig. 2, the conveying mechanism 490 of the present invention is a common technical means in the field, including but not limited to using a cylinder combination to achieve the reciprocating movement and the clamping and releasing function. As for the channel measuring mechanism 410, as shown in fig. 3, the channel measuring mechanism 410 includes a bracket 411, a lifting plate 412 capable of being lifted and lowered and passing through the bracket 411, a measuring head 413 facing the lifting plate 412 and located above the lifting plate 412, and a positioning clamping plate 414 capable of reciprocating relative to the carrying mechanism 490. Firstly, the positioning clamping plate 414 is pushed to the position under the measuring head 413, the positioning clamping plate 414 can position the outer ring or the inner ring in the measuring process, the conveying mechanism 490 conveys the outer ring or the inner ring into the positioning clamping plate, the measuring head 413 descends and is clamped into the outer ring or the inner ring to measure the size of the channel, after the measurement is finished, the measuring head 413 returns, the lifting plate 412 rises to support the outer ring or the inner ring, the conveying mechanism 490 clamps the outer ring or the inner ring, the lifting plate 412 returns, the positioning clamping plate 414 returns, and the conveying mechanism 490 conveys the outer ring or the inner ring to the storage mechanism 430. The fixed plate 431 of the storage mechanism 430 is lifted to align the support plate 432 in an empty state with an outer ring or an inner ring to be stored, and the outer ring or the inner ring is moved to the support plate 432 by the carrying mechanism 490 to be stored; when the inner ring and the outer ring need to be sleeved, the outer ring or the inner ring with the corresponding size is exposed in a lifting fixing plate 432 mode, then the outer ring or the inner ring is transferred to a feeding mechanism 450 by a carrying mechanism 490, and the two feeding mechanisms 450 respectively clamp the outer ring and place the outer ring on a positioning plate 360 jacked by a first jacking mechanism 354, so that the sleeve matching is realized. As shown in fig. 5, the feeding mechanism 450 includes a support 451, a rotating cylinder 452 provided to the support 451, and a clamp 453 provided to an output end of the rotating cylinder 452, and the clamp 453 is movable up and down with respect to the support 451. That is, the clamping member 453 descends to clamp the inner ring, rotates to the positioning plate 360 jacked up by the first jacking mechanism 354, releases the inner ring, and rises to return; the other clamping member 453 descends to clamp the outer ring, rotates to a position on the positioning plate 360 jacked up by the first jacking mechanism 354, aligns with the inner ring, then releases the position, lifts to return, and realizes the fitting of the outer ring and the inner ring. As shown in fig. 7, the positioning plate 360 includes a plate body 361, an arc-shaped or annular supporting boss 362 disposed on the plate body 361, an arc-shaped positioning plate 363 disposed on the inner side of the supporting boss 362, and three positioning posts 364 uniformly located on the periphery of the supporting boss 362, wherein the height of the arc-shaped positioning plate 363 is higher than that of the supporting boss 362. The three positioning columns 364 and the supporting bosses 362 limit the placement position of the outer ring, and the arc positioning plate 363 limits the placement position of the inner ring.

Of course, the outer ring or the inner ring with an unqualified size measured by the channel measuring mechanism 410 is conveyed to the defective product discharging mechanism 470 by the conveying mechanism 490 for discharging, and the defective product discharging mechanism 470 comprises a discharging channel arranged in a conveying path of the conveying mechanism 490. The defective products are directly discharged from the discharge channel and enter a recovery link.

When the inner and outer rings are fitted in the positioning plate 360 of the first jacking mechanism 354, the horizontal pushing mechanism 353 horizontally pushes the positioning plate 354 to the lower channel ball adding mechanism 310. As shown in fig. 8, the lower channel ball adding mechanism 310 includes a support column 311, an arc-shaped plate 312 and a ball outlet channel 313, the support column 311 can extend into and support the inner ring of the double-channel bearing, the arc-shaped plate 312 can be inserted between the inner ring and the outer ring of the double-channel bearing, and the arc-shaped plate 312 is provided with a ball outlet hole communicated with the ball outlet channel 313.

The horizontal pushing mechanism 353 pushes the positioning plate below the lower channel ball adding mechanism 310 to the upper channel ball adding mechanism 330, the positioning plate 360 below the upper channel ball adding mechanism 330 is pushed to the upper side of the second jacking mechanism 355 by the second jacking mechanism 355, the positioning plate 360 is jacked up by the second jacking mechanism 355 to be separated from the conveying support table 351, the positioning plate 360 is taken and placed onto the conveying belt 352 manually, the conveying belt 352 conveys the positioning plate 360 to the upper side of the first jacking mechanism 353, the first jacking mechanism 353 jacks up the positioning plate 250 to support the inner ring and the outer ring which need to be sleeved, and the horizontal pushing mechanism 353 performs horizontal pushing again, and the process is repeated. As shown in fig. 9, the upper channel ball adding mechanism 330 includes a support frame 331, a ball outlet assembly disposed on the support frame 331, an arc-shaped ball outlet plate 335, a rotating shaft 338, an arc-shaped ball blocking piece 336 and a push-pull assembly 337, wherein the ball outlet assembly includes a ball outlet pipe 332 capable of ascending and descending relative to the support frame 331, a ball guide plate 333 located below the ball outlet pipe 332, and a ball pushing rod 334 mounted at the bottom of the ball outlet pipe 332; the arc-shaped ball outlet plate 335 is sleeved with the rotating shaft 338, the arc-shaped ball outlet plate 335 is provided with a sliding groove, and the ball pushing rod 334 is in sliding fit with the sliding groove; the arc ball blocking piece 336 is arranged on the arc ball outlet plate 335 and is positioned below the arc ball outlet plate 335, and the arc ball blocking piece 335 can extend into the space between the inner ring and the outer ring of the double-groove bearing; the push-pull assembly 337 is configured to push-pull the support frame 331. The ball outlet of the ball guide plate 333 is aligned between the outer ring and the inner ring, and the steel balls are arranged in the ball guide plate 333 in sequence. When adding balls, the rotating shaft lever 338 extends into the inner ring and drives the inner ring to rotate, the ball pushing rod 334 rises along the sliding groove to expose the ball outlet, the steel balls roll into the upper channel in sequence, the arc-shaped ball blocking piece 335 is used for preventing the steel balls from falling into the lower channel, and the steel balls can be spread in the upper channel in the rotating process of the inner ring. After the ball is added, the push-pull assembly 337 pushes and pulls the support frame 331, so that the rotating shaft 338 pulls the inner ring, the inner ring and the outer ring keep coaxial, and the ball adding and the sleeving are completed.

As the utility model discloses a preferred embodiment, the utility model discloses still be provided with unloading unit 600 on workstation 100, unloading unit 600 is including pushing away material piece 610, getting material piece 620 and unloading passageway 630, pushes away material piece 610 and is configured to push away the double flute bearing to getting material piece 620 department, and unloading passageway 630 is provided with two feed openings, gets material piece 620 and is configured to press from both sides double flute bearing to one of them feed opening department. One of the two feed openings is a good product feed opening, the other is a defective product feed opening, the material taking part 620 needs to detect the double-groove bearing after the ball is added and the double-groove bearing is sleeved (visual photographing detection can be adopted) before the double-groove bearing is clamped, and the double-groove bearing is clamped to the corresponding feed opening according to the detection result.

To sum up, the utility model discloses a two ditch bearings fit add ball equipment simple operation, machining efficiency is high.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and is not to be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides a two ditch bearing closes to overlap and adds ball equipment, characterized in that, include workstation (100) and set up in the unit (200) that closes of workstation (100), add ball unit (300), wherein:

the sleeve combining unit (200) comprises an outer ring measuring and feeding component (400) and an inner ring measuring and feeding component (500), the outer ring measuring and feeding component (400) and the inner ring measuring and feeding component (500) respectively comprise a channel measuring mechanism (410), a material storing mechanism (430), a feeding mechanism (450), a defective product discharging mechanism (470) and a conveying mechanism (490), the material storing mechanism (430) comprises a fixing plate (431) capable of lifting, and the fixing plate (431) is provided with a plurality of supporting plates (432) from top to bottom;

the ball adding unit (300) comprises a lower channel ball adding mechanism (310), an upper channel ball adding mechanism (330) and a conveying mechanism (350), the conveying mechanism (350) comprises a conveying support platform (351), a conveying belt (352) arranged below the conveying support platform (351), a horizontal pushing mechanism (353) and a first jacking mechanism (354) and a second jacking mechanism (355) which are respectively positioned at two ends of the conveying belt (352), the conveying support platform (351) is positioned below the lower channel ball adding mechanism (310) and the upper channel ball adding mechanism (330), the conveying support platform (351) is configured to support a positioning plate (360), the conveying belt (352) is configured to convey the positioning plate (360), the horizontal pushing mechanism (353) is positioned between the combining unit (200) and the ball adding unit (300), the horizontal pushing mechanism (353) is configured to horizontally push the first jacking mechanism (354) to the conveying support platform (351) from the positioning plate (360) jacked by the conveying belt (352), and the second jacking mechanism (355) is configured to lift off the conveying support platform (360);

the two feeding mechanisms (450) can respectively clamp the outer ring and the inner ring to be placed on the positioning plate (360) jacked up by the first jacking mechanism (354).

2. The double-groove bearing fitting and ball adding device as claimed in claim 1, wherein the channel measuring mechanism (410) comprises a bracket (411), a lifting plate (412) which can be lifted and can pass through the bracket (411), and a measuring head (413) which is opposite to the lifting plate (412) and is positioned above the lifting plate (412).

3. The double-groove bearing sleeve adding and ball adding device as claimed in claim 1, wherein the feeding mechanism (450) comprises a support (451), a rotating cylinder (452) arranged on the support (451), and a clamping piece (453) arranged at an output end of the rotating cylinder (452), and the clamping piece (453) can ascend and descend relative to the support (451).

4. The apparatus of claim 1, wherein the defective product discharge mechanism (470) comprises a discharge channel disposed in a conveying path of the conveying mechanism (490).

5. The double-groove bearing sleeve combining and ball adding equipment as claimed in claim 1, wherein the lower groove ball adding mechanism (310) comprises a supporting column (311), an arc-shaped plate (312) and a ball outlet pipeline (313), the supporting column (311) can extend into and support against an inner ring of the double-groove bearing, the arc-shaped plate (312) can be inserted between the inner ring and an outer ring of the double-groove bearing, and the arc-shaped plate (312) is provided with a ball outlet hole communicated with the ball outlet pipeline (313).

6. The double-groove bearing sleeve combining and ball adding equipment as claimed in claim 1, wherein the upper-groove ball adding mechanism (330) comprises a support frame (331), a ball outlet assembly arranged on the support frame (331), an arc-shaped ball outlet plate (335), a rotating shaft lever (338), an arc-shaped ball blocking piece (336) and a push-pull assembly (337), wherein the ball outlet assembly comprises a ball outlet pipe (332) capable of lifting relative to the support frame (331), a ball guide plate (333) positioned below the ball outlet pipe (332), and a ball pushing rod (334) arranged at the bottom of the ball outlet pipe (332); the arc-shaped ball outlet plate (335) is sleeved with the rotating shaft lever (338), the arc-shaped ball outlet plate (335) is provided with a sliding groove, and the ball pushing rod (334) is in sliding fit with the sliding groove; the arc-shaped ball blocking piece (336) is arranged on the arc-shaped ball outlet plate (335) and is positioned below the arc-shaped ball outlet plate (335), and the arc-shaped ball blocking piece (336) can extend into a position between an inner ring and an outer ring of the double-groove bearing; the push-pull assembly (337) is configured to push-pull the support frame (331).

7. The double-groove bearing fitting ball adding equipment as claimed in claim 1, wherein the positioning plate (360) comprises a plate body (361), an arc-shaped or annular supporting boss (362) arranged on the plate body (361), an arc-shaped positioning plate (363) arranged on the inner side of the supporting boss (362) and three positioning columns (364) uniformly positioned on the periphery of the supporting boss (362), and the height of the arc-shaped positioning plate (363) is higher than that of the supporting boss (362).

8. The double-groove bearing sleeve combining and ball adding device as claimed in any one of claims 1-7, wherein a blanking unit (600) is further arranged on the workbench (100), the blanking unit (600) comprises a pushing piece (610), a taking piece (620) and a blanking channel (630), the pushing piece (610) is configured to push the double-groove bearing to the taking piece (620), the blanking channel (630) is provided with two blanking ports, and the taking piece (620) is configured to clamp the double-groove bearing to one of the blanking ports.