Roller assembly machine

Abstract

The utility model relates to a roller assembly machine, which comprises a transfer mechanism, a clamping mechanism, a clamping mechanism, a clamping mechanism and a clamping mechanism, wherein the transfer mechanism is used for grabbing and conveying retainers and assembled rollers; a retainer feeding station; the ball feeding station is used for feeding balls; the assembling station is used for assembling the retainer and the balls after the balls are positioned; the retainer feeding station, the ball feeding station and the assembling station are sequentially arranged on the moving path of the moving mechanism, a feeding opening of the ball feeding station can move to the assembling station, and balls are fed to the assembling station. The assembly station is provided with a positioning tool, the positioning tool is provided with an annular assembly groove, and the assembly groove is formed by connecting and connecting circular ball grooves which are annularly distributed in a through mode. The ball loading device has the advantages that the positioning tool is arranged to position and load balls, then the holder is embedded into the positioning tool, the balls are loaded into the holding bin of the holder while the holder is embedded, and therefore one-time loading of the balls is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing assembly equipment, in particular to a roller assembly machine. Background Art

[0002] Rollers are the components that bear the load when the bearing is running. They are the weakest parts in the roller bearing. Their manufacturing quality has a great influence on the working performance of the bearing and is the main factor affecting the service life of the bearing. They are mainly divided into tapered rollers, cylindrical rollers, spherical rollers, etc.

[0003] Rollers are mainly composed of cages and balls. The assembly of rollers mainly relies on manual pressing by workers. In order to increase the life of the rollers and reduce the noise they generate, lubricating oil is generally applied to the balls. After the balls are coated with lubricating oil, it is difficult for workers to press the cage and balls together, thereby reducing the assembly speed of the rollers. At the same time, the amount of lubricating oil applied to the rollers is also difficult to control, resulting in excessive lubricating oil and waste, and also increasing the labor cost of subsequent lubricating oil processing.

[0004] The prior art generally adopts an assembly method of installing the ball into the retaining frame. Multiple balls need to be installed on a retaining frame. Installing multiple balls at one time requires precise positioning to ensure the installation position, which makes the assembly equipment process complicated. Assembling the balls one by one will greatly reduce the assembly efficiency. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a roller assembly machine.

[0006] The above-mentioned problem of the present invention is solved by the following technical solutions:

[0007] A roller assembly machine comprising:

[0008] Transfer mechanism, used to grab and transfer the cage and assembled rollers;

[0009] Cage loading station, used for loading cages;

[0010] Ball loading station, used for loading balls;

[0011] Assembly station, after positioning the balls, the cage and balls are assembled;

[0012] The cage loading station, ball loading station and assembly station are sequentially arranged on the motion path of the moving mechanism, and the loading port of the ball loading station can be moved to the assembly station to load the balls to the assembly station;

[0013] The assembly station is provided with a positioning tool, and the positioning tool is provided with an annular assembly groove, and the assembly groove is formed by connecting and penetrating circular ball grooves arranged in a ring shape.

[0014] The above technical solution is further configured as follows: the positioning tool comprises a tool seat provided with a groove, and a tool core is provided in the groove;

[0015] The outer groove wall of the groove is circumferentially arranged with external positioning grooves that match the outer surface of the ball, and the outer periphery of the tooling core is provided with internal positioning grooves corresponding to the external positioning grooves; the ball is confined in the ball groove formed by the external positioning grooves and the internal positioning grooves.

[0016] The above technical solution is further configured as follows: the transfer mechanism includes a conveying assembly and a retainer grabbing assembly, and the retainer grabbing assembly includes a clamp driven by a second moving assembly, which is used to grab and transfer the retainer on the retainer loading station to the assembly station.

[0017] The above technical solution is further configured as follows: the conveying component includes an assembly head driven by a first moving component, the assembly head moves above the positioning tooling, moves downward to press the retaining frame into the assembly groove, and then takes out the assembled component and moves it to the next workstation.

[0018] The above technical solution is further configured as follows: the assembly head includes a pressing sleeve, the inner diameter of the pressing sleeve is larger than the inner ring of the retaining frame; a clamping claw is provided in the pressing sleeve, and a second driving member is provided on the assembly head to drive the clamping claw to expand outward or retract inward.

[0019] The above technical solution is further configured as follows: a suspension shoulder is provided extending outward from the lower end of the tensioning claw, and the outer diameter of the suspension shoulder is larger than the inner diameter of the upper end of the retaining frame;

[0020] A limiting groove is provided on the inner ring of the lower end of the press sleeve, and a suspension space of the retaining frame is formed between the limiting groove and the suspension shoulder.

[0021] The above technical solution is further configured as follows: the ball loading station is provided with a material guide seat driven by a first driving member, an inclined material guide channel is provided in the material guide seat, and the material outlet of the material guide channel can be moved above the positioning tool or away from the positioning tool under the drive of the first driving component;

[0022] The assembly station is also provided with a rotating mechanism to drive the positioning tool to rotate.

[0023] The above technical solution is further configured as follows: the cage loading station is provided with a loading rod and a unloading seat, and the conveying assembly is provided with a feeding claw to transfer the cage on the loading rod to the unloading seat;

[0024] A lifting assembly is provided between the loading rod and the unloading seat, and the lifting assembly includes a lifting rod, and a first lifting seat and a second lifting seat provided on the lifting rod;

[0025] The first lifting seat is used to lift the retaining frame on the loading rod so that the retaining frame moves to the upper end of the loading rod;

[0026] The second lifting seat is used to drive the unloading seat downward so that the retaining frame on the unloading seat can be grabbed by the feeding claw.

[0027] The above technical solution is further configured as follows: a lifting claw is provided on the first lifting seat on a side facing the loading rod, and a clamping gap on the lifting claw is larger than a diameter of the loading rod.

[0028] The above technical solution is further configured as follows: a detection device is provided on the second lifting seat for detecting the position of the retaining frame on the blanking seat.

[0029] Compared with the existing technology, the beneficial effect of the utility model is that: a positioning tool is set to position and load the balls, and then the retaining frame is embedded into the positioning tool. At the same time as the retaining frame is embedded, the balls are loaded into the retaining chamber of the retaining frame, thereby realizing a one-time loading of the balls, improving the assembly efficiency of the balls and the retaining frame, and not affecting the positioning of the balls when the balls are oiled. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the workstation layout of the present utility model.

[0031] Figure 2 It is a structural diagram of the present utility model.

[0032] Figure 3 This is a structural diagram of the positioning tooling.

[0033] Figure 4 Schematic diagram of the position structure of the retainer and positioning tooling.

[0034] Figure 5 It is a structural diagram of the assembly station.

[0035] Figure 6 This is an isometric section view of the assembly head.

[0036] Figure 7 A cross-sectional diagram of the assembly head.

[0037] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part A in the middle.

[0038] Figure 9 Schematic diagram of the internal structure of the material guide seat.

[0039] Figure 10 This is a schematic diagram of the position structure of each component in the cage loading station.

[0040] Figure 11 This is a schematic diagram of the position structure of the lifting assembly, loading rod and unloading seat.

[0041] Marked on the accompanying drawings: 100, workbench;

[0042] 200, conveyor belt;

[0043] 300, positioning tool; 301, assembly groove; 310, tooling seat; 311, external positioning groove; 320, tooling core; 321, internal positioning groove;

[0044] 400, conveying assembly; 410, first moving assembly; 420, assembly head; 421, pressing sleeve; 422, tensioning claw; 422.1, hanging shoulder; 421.1, limiting groove; 423, second driving member; 430, vertical sliding assembly; 440, feeding claw;

[0045] 500, retainer grabbing assembly; 510, clamping claw; 520, second moving assembly;

[0046] 600, material guide seat; 601, material guide channel; 601.1, material outlet; 610, first driving member;

[0047] 700, rotating mechanism;

[0048] 810, loading rod; 820, unloading seat; 830, lifting rod; 840, first lifting seat; 850, second lifting seat; 860, lifting claw; 870, detection device; 880, rotary drive member;

[0049] a. Cage loading station; b. Ball loading station; c. Assembly station; d. Transfer mechanism;

[0050] 1. Cage; 1.1. Ball chamber; 2. Ball. DETAILED DESCRIPTION

[0051] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0052] like Figure 1-11 As shown, this embodiment discloses a roller assembly machine.

[0053] A roller assembly machine comprising:

[0054] Transfer mechanism d, used to grab and transfer the cage 1 and the assembled rollers;

[0055] Cage 1 loading station a, used for loading cage 1;

[0056] Ball 2 loading station b, used for loading ball 2;

[0057] Assembly station c, after positioning the ball 2, the cage 1 and the ball 2 are assembled;

[0058] The invention is characterized in that: the cage 1 loading station a, the ball 2 loading station b and the assembly station c are sequentially arranged on the motion path of the moving mechanism, and the loading port of the ball 2 loading station b can be moved to the assembly station c to load the ball 2 to the assembly station c;

[0059] The assembly station c is provided with a positioning fixture 300 , and the positioning fixture 300 is provided with an annular assembly groove 301 , and the assembly groove 301 is formed by connecting and penetrating circular ball grooves arranged in an annular shape.

[0060] The above is the basic solution of this embodiment.

[0061] Specific reference Figure 1 and Figure 2 As shown, the transfer mechanism d is configured as a linear conveying module arranged on the workbench 100, including a linear conveying track; the retainer 1 loading station a is located at the starting end of the transfer mechanism d, and the ball 2 loading station b and the assembly station c are arranged in sequence along the conveying direction of the transfer mechanism d; in this embodiment, the assembled rollers are conveyed to other installation stations of the bearings, so the assembly station c is arranged in the middle of the transfer mechanism d, and a conveyor belt 200 is provided at the end of the transfer mechanism d to convey the assembled rollers.

[0062] In this embodiment, the roller is assembled as follows: the ball 2 is loaded onto the positioning fixture 300, and after the retaining frame 1 is loaded, it is transported to the top of the positioning fixture 300 through the transfer mechanism d, and then the retaining frame 1 is pressed downward into the assembly groove 301 of the positioning fixture 300, so that the ball 2 is stuck in the ball bin 1.1 of the retaining frame 1.

[0063] It should be noted that, in this embodiment, the ball bin 1.1 of the retaining frame 1 is provided with an opening, and the retaining frame 1 is made of elastic material. The opening of the ball bin 1.1 can expand and open under the action of external force, and reset after the external force is removed, that is, the ball 2 enters the ball bin 1.1, and the opening of the ball bin 1.1 is reset, and the ball 2 cannot fall from the ball bin 1.1.

[0064] To ensure the position of the ball 2, the ball 2 loading station b loads the ball 2 into the ball groove of the positioning tool 300. Each ball groove matches one ball 2, and adjacent ball grooves are connected by short grooves to form an assembly groove 301 that can accommodate the embedding of the retaining frame 1.

[0065] Based on the above arrangement, when rollers of different models need to be assembled, it is only necessary to replace the positioning fixture 300 .

[0066] Specifically, in this embodiment, the positioning tool 300 includes a tool seat 310 having a groove, and a tool core 320 is provided in the groove;

[0067] The outer groove wall of the groove is circumferentially arranged with outer positioning grooves 311 that cooperate with the outer surface of the ball 2, and the outer periphery of the tooling core 320 is provided with inner positioning grooves 321 corresponding to the outer positioning grooves 311; the ball 2 is confined in the ball groove formed by the outer positioning grooves 311 and the inner positioning grooves 321.

[0068] Specific reference Figure 3 As shown, the assembly groove 301 on the positioning tool 300 is an annular groove, whose structure is consistent with that of the retaining frame 1 and can accommodate the embedding of the retaining frame 1; a plurality of ball grooves arranged in a ring shape are formed in the annular groove through a plurality of inner positioning grooves 321 and a plurality of corresponding outer positioning grooves 311, and the number of ball grooves arranged and the spacing between adjacent ball grooves correspond to the position of the ball bin 1.1 on the retaining frame 1.

[0069] Specific reference Figure 4 As shown, the transfer mechanism d transfers the retaining frame 1 to the top of the positioning tool 300, and the ball bin 1.1 on the retaining frame 1 corresponds to the position of the ball groove in the positioning tool 300. When the retaining frame 1 is embedded in the assembly groove 301, the position of the ball bin 1.1 is exactly the position of the ball groove, so that the balls 2 in the ball groove can enter the ball bin 1.1.

[0070] In this embodiment, the transfer mechanism d includes a conveying component 400 and a retainer 1 grabbing component 500. The retainer 1 grabbing component 500 includes a clamp 510 driven by a second moving component 520, which is used to grab and transfer the retainer 1 on the retainer loading station a to the assembly station c.

[0071] Specific reference Figure 5 As shown, in this embodiment, the conveying assembly 400 and the retainer 1 grabbing assembly 500 are respectively arranged on both sides of the positioning tool 300, wherein the retainer 1 grabbing assembly 500 grabs the retainer 1 from the retainer 1 loading station a and transfers it to the positioning tool 300.

[0072] In this embodiment, the conveying component includes an assembly head 420 driven by a first moving component 410. The assembly head 420 moves to the top of the positioning tool 300, moves downward to press the retaining frame 1 into the assembly groove 301, and then takes out the assembled component and moves it to the next workstation.

[0073] In this embodiment, the first moving assembly 410 and the second moving assembly each include a horizontal slide rail and a slide seat sliding on the horizontal slide rail, and the clamping jaw 510 and the assembly head 420 are mounted on the slide seat;

[0074] In order to enable the assembly head 420 to perform the downward pressing function, the first moving component 410 also includes a vertical sliding component 430, and the assembly head 420 is installed on the vertical sliding component 430; the slide drives the vertical sliding component 430 and the assembly head 420 to move above the positioning tool 300, and the vertical sliding component 430 then drives the sliding head to move downward, pressing the retaining frame 1 into the assembly groove 301.

[0075] In this embodiment, the first moving assembly 410 , the second moving assembly 520 and the vertical sliding assembly 430 are all driven by a driving component, which may be an oil cylinder or a pneumatic cylinder.

[0076] In this embodiment, the assembly head 420 can press down the retaining frame 1, and then grab the assembled roller and transfer it to the conveyor belt 200 by the first moving component 410; wherein, the specific implementation of the assembly head 420 is: the assembly head 420 includes a pressing sleeve 421, and the inner diameter of the pressing sleeve 421 is larger than the inner ring of the retaining frame 1; a tensioning claw 422 is provided in the pressing sleeve 421, and a second driving member 423 is provided on the assembly head 420 to drive the tensioning claw 422 to expand outward or retract inward.

[0077] Specific reference Figure 6 and Figure 7 As shown, the pressing sleeve 421 is configured as a sleeve, the tensioning claw 422 is disposed inside the sleeve, and the tensioning claw 422 is provided with a second driving member 423 to drive its movement;

[0078] During assembly, the assembly head 420 moves downward under the action of the vertical sliding assembly 430, contacts the retainer 1 on the clamping jaw 510, and continues to move downward to press the retainer 1 downward. During this process, the lower end surface of the pressing sleeve 421 contacts the upper end surface of the retainer 1, thereby generating pressure on the retainer 1;

[0079] After the assembly is completed, the tensioning claw 422 is located on the inner ring of the retaining frame 1, and the second driving member 423 drives the two claws of the tensioning claw 422 to expand outward, so that the lower end of the tensioning claw 422 is located below the upper edge of the retaining frame 1, that is, the retaining frame 1 is suspended on the tensioning claw 422; at this time, the vertical sliding component 430 lifts the assembly head 420 upward, driving the assembled roller to lift up, so that the roller is separated from the positioning tooling 300.

[0080] In this embodiment, to ensure that the retainer 1 can be clamped on the assembly head 420, a hanging shoulder 422.1 is provided at the lower end of the tensioning claw 422, and the outer diameter of the hanging shoulder 422.1 is larger than the inner diameter of the upper end of the retainer 1.

[0081] A limiting groove 421.1 is provided on the inner ring of the lower end of the pressing sleeve 421, and a suspension space for the retainer 1 is formed between the limiting groove 421.1 and the suspension shoulder 422.1.

[0082] Specific reference Figure 8 As shown, a convex portion is provided on the outer surface of the lower end of the tensioning claw 422, and the convex portion can suspend the upper edge of the retaining frame 1; at the same time, a concave portion is provided on the inner ring of the pressing sleeve 421 to form a limiting groove 421.1, and the limiting groove 421.1 can match the surface of the retaining frame 1 and the ball 2 on the retaining frame 1, so that the upper part of the assembled roller is embedded in the suspension space formed by the pressing sleeve 421 and the tensioning claw 422, to avoid the roller sliding during the transfer process, causing the ball 2 to fall, etc.

[0083] Preferably, in this embodiment, the outer periphery of the lower end of the tensioning claw 422 is set to an arc surface, so that the suspension shoulder 422.1 is also an arc structure, matching the upper edge of the retaining frame 1; at the same time, the bottom of the limiting groove 421.1 is also set to an arc structure, matching the shape of the roller.

[0084] In this embodiment, the ball 2 loading station b directly loads the ball 2 onto the positioning fixture 300. The specific implementation method is as follows: the ball 2 loading station b is provided with a guide base 600 driven by a first driving member 610. The guide base 600 is provided with an inclined guide channel 601. The discharge port 601.1 of the guide channel 601 can be moved above the positioning fixture 300 or away from the positioning fixture 300 under the drive of the first driving component.

[0085] The assembly station c is further provided with a rotating mechanism 700 to drive the positioning tool 300 to rotate.

[0086] Specific reference Figure 9As shown, the interior of the material guide seat 600 is provided with a through groove as the material guide channel 601, which can accommodate the rolling of the ball 2; the upper end of the material guide channel 601 is the entrance, which is located on the upper end surface of the material guide seat 600, and the lower end of the material guide seat 600 is the discharge port 601.1, which is located on the lower end surface of the material guide seat 600. The middle part of the material guide channel 601 is set as an inclined channel, and the side close to the discharge port 601.1 is lower than the side of the entrance, so that the ball 2 can automatically roll down along the material guide channel 601; the upper end of the material guide channel 601 can be connected to the feeding mechanism of the ball 2 through a pipe.

[0087] When the ball 2 is loaded, the discharge port 601.1 is located above the positioning tool 300, and the ball 2 automatically falls along the guide channel 601 into the ball groove of the positioning tool 300; when the ball 2 falls into one of the ball grooves, the rotating mechanism 700 drives the positioning tool 300 to rotate, so that the discharge port 601.1 is aligned with the next ball groove for loading the ball 2; after loading is completed, the first driving member 610 drives the guide seat 600 to withdraw, so that the discharge port 601.1 is away from the positioning tool 300. At this time, the guide seat 600 does not hinder the assembly action.

[0088] In this embodiment, the first driving member 610 and the rotating mechanism 700 are conventional arrangements in the prior art and are not described in detail here.

[0089] In this embodiment, the specific configuration of the loading station a of the holder 1 is as follows: the loading station a of the holder 1 is provided with a loading rod 810 and a unloading seat 820, and the conveying assembly 400 is provided with a feeding claw 440 to transfer the holder 1 on the loading rod 810 to the unloading seat 820;

[0090] A lifting assembly is provided between the loading rod 810 and the unloading seat 820, and the lifting assembly includes a lifting rod 830, and a first lifting seat 840 and a second lifting seat 850 provided on the lifting rod 830;

[0091] The first lifting seat 840 is used to lift the holder 1 on the loading rod 810 so that the holder 1 moves to the upper end of the loading rod 810;

[0092] The second lifting seat 850 is used to drive the unloading seat 820 downward so that the retaining frame 1 on the unloading seat 820 can be grabbed by the feeding claw 440.

[0093] Specific reference Figure 10 As shown, the loading rod 810 and the unloading seat 820 are located on both sides of the lifting assembly, the first lifting seat 840 faces the loading rod 810 side, and the second lifting seat 850 faces the unloading seat 820 side;

[0094] Multiple retainers 1 are stacked and sleeved on the loading rod 810. The first lifting seat 840 lifts a single retainer 1 to the top of the loading rod 810. The feeding claw 440 on the conveying assembly 400 grabs the retainer 1 and transfers it to the unloading seat 820. The unloading seat 820 positions the retainer 1. The second lifting seat 850 drives the unloading seat 820 to move downward to the unloading position. The clamp 510 can grab the retainer 1 from the unloading position and transfer it to the assembly station c.

[0095] Since the retaining frame 1 is mounted on the loading rod 810 , in order to lift a single retaining frame 1 , in this embodiment, a lifting claw 860 is provided on the first lifting seat 840 facing the loading rod 810 , and the clamping gap on the lifting claw 860 is larger than the diameter of the loading rod 810 .

[0096] Specific reference Figure 11 As shown, in this embodiment, the lifting claw 860 includes two claws, and a clamping gap is left between the two claws. The clamping gap is larger than the diameter of the loading rod 810, that is, the two claws are located on both sides of the loading rod 810 respectively; at the same time, the clamping gap is smaller than the maximum outer diameter of the retaining frame 1. Therefore, the retaining frame 1 can be hung on the two claws and lifted up as the lifting claw 860 is lifted, thereby moving to the top of the loading rod 810.

[0097] In this embodiment, in order to ensure that the position of the ball bin 1.1 corresponds to the position of the ball groove when the retaining frame 1 is transferred to the top of the positioning tool 300, a detection device 870 is provided on the second lifting seat 850 for detecting the position of the retaining frame 1 on the unloading seat 820.

[0098] Specific reference Figure 11 As shown, the detection device 870 is located on the side of the unloading seat 820, and is arranged on the second lifting seat 850 together with the unloading seat 820; when the retaining claw is placed on the loading seat, the detection device 870 detects the state of the retaining frame 1, that is, determines whether the detection position is the position of the ball bin 1.1. If it is not the ball bin 1.1, a rotating drive member 880 is provided at the bottom of the unloading seat 820 to rotate the unloading seat 820 so that the detection position is the position of the ball bin 1.1.

[0099] In this embodiment, the detection device 870 is a conventional detection structure in the prior art, and may be an infrared detector or the like.

[0100] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A roller assembly machine comprising: A transfer mechanism (d) for grabbing and transferring the retaining frame (1) and the assembled rollers; A retainer (1) loading station (a), used for loading the retainer (1); The ball (2) loading station (b) is used to load the ball (2); An assembly station (c) is used to assemble the retaining frame (1) and the ball (2) after positioning the ball (2); The invention is characterized in that: the retainer (1) loading station (a), the ball (2) loading station (b) and the assembly station (c) are sequentially arranged on the motion path of the moving mechanism, and the loading port of the ball (2) loading station (b) can be moved to the assembly station (c) to load the ball (2) to the assembly station (c); The assembly station (c) is provided with a positioning tool (300), and the positioning tool (300) is provided with an annular assembly groove (301), and the assembly groove (301) is formed by connecting and penetrating circular ball grooves arranged in an annular shape.

2. The roller assembly machine according to claim 1, characterized in that: The positioning tool (300) comprises a tool seat (310) provided with a groove, wherein a tool core (320) is provided in the groove; External positioning grooves (311) are arranged in a circumferential direction on the outer groove wall of the groove and match the outer surface of the ball (2); an inner positioning groove (321) corresponding to the external positioning groove (311) is provided on the outer periphery of the tooling core (320); and the ball (2) is confined in the ball groove formed by the external positioning groove (311) and the internal positioning groove (321).

3. The roller assembly machine according to claim 2, characterized in that: The transfer mechanism (d) includes a conveying assembly (400) and a retainer (1) grabbing assembly (500), wherein the retainer (1) grabbing assembly (500) includes a clamping claw (510) driven by a second moving assembly (520) and is used to grab and transfer the retainer (1) on the retainer (1) loading station (a) to the assembly station (c).

4. The roller assembly machine according to claim 3, characterized in that: The conveying assembly (400) includes an assembly head (420) driven by a first moving assembly (410). The assembly head (420) moves to the top of the positioning tool (300), moves downward to press the retaining frame (1) into the assembly groove (301), and then takes out the assembled assembly and transfers it to the next station.

5. The roller assembly machine according to claim 4, characterized in that: The assembly head (420) includes a pressing sleeve (421) having an inner diameter larger than the inner ring of the retaining frame (1); a tensioning claw (422) is provided in the pressing sleeve (421), and a second driving member (423) is provided on the assembly head (420) to drive the tensioning claw (422) to expand outward or retract inward.

6. The roller assembly machine according to claim 5, characterized in that: The lower end of the tensioning claw (422) is provided with a suspension shoulder (422.1) extending outward, and the outer diameter of the suspension shoulder (422.1) is larger than the inner diameter of the upper end of the retaining frame (1); A limiting groove (421.1) is provided on the inner ring of the lower end of the pressing sleeve (421), and a suspension space of the retaining frame (1) is formed between the limiting groove (421.1) and the suspension shoulder (422.1).

7. The roller assembly machine according to claim 2, characterized in that: The ball (2) loading station (b) is provided with a material guide seat (600) driven by a first driving member (610), an inclined material guide channel (601) is provided in the material guide seat (600), and a material outlet (601.1) of the material guide channel (601) can be moved above the positioning fixture (300) or away from the positioning fixture (300) under the drive of the first driving assembly; The assembly station (c) is also provided with a rotating mechanism (700) to drive the positioning tool (300) to rotate.

8. The roller assembly machine according to claim 3, characterized in that: The loading station (a) of the retainer (1) is provided with a loading rod (810) and a unloading seat (820), and the conveying assembly (400) is provided with a feeding claw (440) for transferring the retainer (1) on the loading rod (810) to the unloading seat (820); A lifting assembly is provided between the loading rod (810) and the unloading seat (820), and the lifting assembly includes a lifting rod (830), and a first lifting seat (840) and a second lifting seat (850) provided on the lifting rod (830); The first lifting seat (840) is used to lift the retaining frame (1) on the loading rod (810) so that the retaining frame (1) moves to the upper end of the loading rod (810); The second lifting seat (850) is used to drive the unloading seat (820) downward so that the retaining frame (1) on the unloading seat (820) can be grasped by the feeding claw (440).

9. The roller assembly machine according to claim 8, characterized in that: A lifting claw (860) is provided on the first lifting seat (840) on a side facing the loading rod (810), and a clamping gap on the lifting claw (860) is larger than the diameter of the loading rod (810).

10. The roller assembly machine according to claim 8, characterized in that: The second lifting seat (850) is provided with a detection device (870) for detecting the position of the retaining frame (1) on the unloading seat (820).

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