Automatic assembly machine for crossed roller bearing

Abstract

An automatic assembling machine for crossed roller bearings comprises an automatic arranging device, a driving device, a feeding device and an assembling device, the automatic arranging device is used for automatically arranging rollers in the transverse direction or the vertical direction, and the feeding device is used for conveying the rollers to the assembling device; the assembling device is used for assembling a roller between an inner ring and an outer ring of the bearing through an outer ring ball mounting hole of the bearing, a rotating shaft is arranged on the driving device, the driving device is used for driving the rotating shaft to rotate, and an inner ring of the bearing is arranged on the rotating shaft in a sleeving mode and fixed through the pressing and fixing device. And the clamping device is used for clamping the outer ring of the bearing. The clamping contact surface is large, the clamping stability is high, the outer ring is effectively prevented from shaking, and the influence on the assembly precision is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing assembly technical field, especially intermeshing roller bearing automatic assembly machine. BACKGROUND

[0002] It is known that cross roller bearing has the characteristics of long production cycle and troublesome assembly during production. During the assembly of the cross roller bearing, the rollers need to be accurately assembled between the inner and outer rings of the bearing through the outer ring ball hole of the cross roller bearing, and the relative position accuracy of the inner and outer rings needs to be ensured.

[0003] At present, the existing patent CN209262097U discloses an automatic assembly machine for cross roller bearing, which comprises an automatic arrangement device, a feeding device, a clamping device, a power device and an assembly device. The clamping device of the assembly machine clamps along the axial direction of the bearing, clamps one side of the bearing, and has small clamping contact area and poor clamping stability. When the inner ring is driven to rotate by the power device, the outer ring of the bearing is prone to shaking, which affects the assembly accuracy. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model provides an intermeshing roller bearing automatic assembly machine.

[0005] The utility model discloses a kind of intermeshing roller bearing automatic assembly machines, including automatic arrangement device, drive device, feeding device and assembly device, automatic arrangement device is used to arrange roller according to horizontal direction or vertical direction automatically, feeding device is used to convey roller to assembly device, assembly device is used to make roller pass through the outer ring ball hole of bearing and be assembled between the inner and outer rings of bearing, still include pressing fixture and clamping device, drive device has rotating shaft on it, drive device is used to rotate rotating shaft, the inner ring of bearing is set on rotating shaft, and is fixed by pressing fixture, clamping device is used to clamp the outer ring of bearing.

[0006] Further, the drive device includes a drive motor, and the output shaft of the drive motor is connected with the rotating shaft through a shaft coupling.

[0007] Further, the pressing fixture includes an annular protrusion provided on the rotating shaft, a blocking ring slidably sleeved on the outer side of the rotating shaft and a pressing sleeve sleeved on the end portion of the rotating shaft. The blocking ring and the annular protrusion are respectively abutted with the two sides of the inner ring of the bearing. The pressing sleeve is fixed on the end portion of the rotating shaft through a locking member, and the pressing sleeve is abutted with the blocking ring.

[0008] Further, the locking member is a locking bolt.

[0009] Further, the clamping device comprises a support plate, a fixing frame arranged on the support plate, and a pressing cylinder arranged on the fixing frame, the support plate is provided with a fixed V-shaped seat, a piston rod of the pressing cylinder is slidably penetrated through the fixing frame and is provided at an end portion with a movable V-shaped seat, and the pressing cylinder is used to drive the movable V-shaped seat to approach or move away from the fixed V-shaped seat, so as to clamp or loosen the outer ring of the bearing.

[0010] Further, the fixing frame is in an L shape, the fixing frame comprises a vertical portion connected with the support plate and a horizontal portion connected with the vertical portion, and the pressing cylinder is arranged on the horizontal portion.

[0011] Further, a guide rod penetrating through the horizontal portion is arranged on a side of the movable V-shaped seat away from the fixed V-shaped seat.

[0012] Further, rubber pads are arranged on inner sides of V-shaped grooves of the fixed V-shaped seat and the movable V-shaped seat.

[0013] The application has the following beneficial effects: 1. The movable V-shaped seat and the fixed V-shaped seat are driven by the pressing cylinder to approach or move away from each other, so as to clamp or loosen the outer ring of the bearing, radial pressing is adopted, the movable V-shaped seat and the fixed V-shaped seat are matched, the clamping contact surface is large, the clamping stability is high, the outer ring is effectively prevented from shaking, and the assembly precision is prevented from being affected.

[0014] 2. The rubber pads arranged on inner sides of V-shaped grooves of the movable V-shaped seat and the fixed V-shaped seat increase the friction force, prevent the outer ring from sliding, and protect the surface of the outer ring from being damaged.

[0015] 3. The pressing fixing device axially positions the inner ring of the bearing through the annular protruding portion and the blocking ring, the V-shaped seat structure of the clamping device ensures that the outer ring is stably fixed, the inner ring and the outer ring are prevented from being displaced in the assembly process, and the positioning precision is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the clamping device of the utility model;

[0018] Figure 3 It is a structural schematic view of the pressing fixing device of the utility model.

[0019] Marked in the figure: 1, automatic arrangement device, 2, feeding device, 3, assembly device, 4, driving device, 5, bearing, 6, support plate, 41, rotating shaft, 42, annular protruding portion, 43, blocking ring, 44, pressing sleeve, 45, locking bolt, 61, fixing frame, 62, pressing cylinder, 63, movable V-shaped seat, 64, fixed V-shaped seat, 65, guide rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be described in further detail below in combination with the drawings and examples. It should be understood that, in the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the directions or position relations indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] Please refer to Figures 1-3 The utility model embodiment provides a kind of cross roller bearing automatic assembly machine, including automatic arrangement device 1, drive device 4, feeding device 2 and assembly device 3, automatic arrangement device 1 is used to arrange according to the transverse or vertical automatic arrangement of roller, feeding device 2 is used to deliver roller to assembly device 3, and assembly device 3 is used to make roller pass through the outer ring of bearing 5 ball hole assembly between the inner and outer rings of bearing 5, still include pressing fixture and clamping device, drive device 4 has rotating shaft 41 on it, drive device 4 is used to rotate with rotating shaft 41, and the inner ring of bearing 5 is sleeved on rotating shaft 41, and is fixed by pressing fixture, and clamping device is used to clamp the outer ring of bearing 5.

[0022] Among them, the bearing 5 of the application is cross roller bearing. Automatic arrangement device 1 is connected with the feeding device 2, the feeding device 2 is connected with the assembly device 3, and the assembly device is connected with the bearing 5, and the automatic arrangement device 1, the feeding device 2 and the assembly device 3 of the application all adopt the automatic arrangement device, the feeding device and the assembly device in the prior patent CN209262097U, and the specific connection relationship and working principle of each component are not described in detail herein.

[0023] As shown in Figure 1 And Figure 3 As shown, drive device 4 includes driving motor, and the output shaft of driving motor is connected with rotating shaft 41 through shaft coupling.

[0024] As shown in Figure 1 And Figure 3 As shown, pressing fixture includes annular protruding portion 42 arranged on rotating shaft 41, stop ring 43 slidably sleeved on the outer side of rotating shaft 41 and pressing sleeve 44 sleeved on the end of rotating shaft 41,

[0025] The annular protrusion 42 and the rotating shaft 41 are integrally formed. The retaining ring 43 and the annular protrusion 42 abut against both sides of the inner ring of the bearing 5 respectively, and the pressing sleeve 44 is fixed at the end of the rotating shaft 41 through the locking bolt 45, and the pressing sleeve 44 abuts against the retaining ring 43. The locking bolt 45 is a locking bolt.

[0026] The annular protrusion 42 is arranged on the rotating shaft 41 and in contact with one end of the inner ring of the bearing 5 to provide axial support. The retaining ring 43 is slidably sleeved on the rotating shaft 41 and in contact with the other end of the inner ring of the bearing 5, and is fixed through the pressing sleeve 44 and the locking bolt 45 to realize axial positioning of the inner ring.

[0027] Specifically, the clamping device comprises a support plate 6, a fixed frame 61 arranged on the support plate 6, and a pressing cylinder 62 arranged on the fixed frame 61. The support plate 6 is provided with a fixed V-shaped seat 64, and the piston rod of the pressing cylinder 62 is slidably penetrated through the fixed frame 61 and is provided at the end with a movable V-shaped seat 63. The pressing cylinder 62 is used to drive the movable V-shaped seat 63 to approach or move away from the fixed V-shaped seat 64, so as to realize clamping or loosening of the outer ring of the bearing 5. The V-shaped grooves of the movable V-shaped seat 63 and the fixed V-shaped seat 64 are oppositely arranged.

[0028] In addition, the fixed frame 61 is in L-shaped, and the fixed frame 61 comprises a vertical part connected with the support plate 6 and a horizontal part connected with the vertical part, and the vertical part and the horizontal part are integrally formed. The pressing cylinder 62 is arranged on the upper end of the horizontal part. The side of the movable V-shaped seat 63 away from the fixed V-shaped seat 64 is provided with a guide rod 65 penetrating through the horizontal part. The guide rod 65 is arranged to ensure the straightness of the movable V-shaped seat 63 moving up and down.

[0029] When the inner ring of the bearing 5 is fixed, the inner ring of the bearing 5 is sleeved on the rotating shaft 41, the annular protrusion 42 and the retaining ring 43 abut against both sides of the inner ring respectively, and the pressing sleeve 44 is fixed through the locking bolt 45 to ensure the axial fixation of the inner ring.

[0030] When the inner ring of the bearing 5 is clamped, the pressing cylinder 62 is started, the piston rod is extended to drive the movable V-shaped seat 63 to approach the fixed V-shaped seat 64, and the V-shaped grooves of the two are used to clamp the outer ring of the bearing 5.

[0031] Of course, the utility model is not limited to the above-mentioned embodiments, and several other embodiments based on the design concept of the utility model are provided below.

[0032] For example, in other embodiments, the V-shaped grooves of the fixed V-shaped seat 64 and the movable V-shaped seat 63 are both provided with rubber pads.

[0033] It should be noted that the above embodiments are only used to illustrate the present application, but the present application is not limited to the above embodiments, any simple modification, equivalent change and modification according to the technical essence of the present application to the above embodiments are all within the protection scope of the present application.

Claims

1. A kind of cross roller bearing automatic assembly machine, including automatic arrangement device (1), driving device (4), feeding device (2) and assembly device (3), automatic arrangement device (1) is used to arrange roller according to horizontal or vertical automatically, feeding device (2) is used to deliver roller to assembly device (3), assembly device (3) is used to make roller pass through the ball hole of the outer ring of bearing (5) and be assembled between the inner and outer rings of bearing (5), it is characterized by, The device also comprises a pressing fixing device and a clamping device, the driving device (4) has a rotating shaft (41), the driving device (4) is used for rotating with the rotating shaft (41), the inner ring of the bearing (5) is sleeved on the rotating shaft (41) and is fixed through the pressing fixing device, and the clamping device is used for clamping the outer ring of the bearing (5).

2. The automatic cross-roller bearing assembly machine according to claim 1, wherein: The driving device (4) comprises a driving motor, and an output shaft of the driving motor is connected with the rotating shaft (41) through a shaft coupling.

3. A cross-roller bearing automatic assembly machine according to claim 1 or 2, characterized in that: The pressing fixing device comprises an annular protruding portion (42) arranged on the rotating shaft (41), a stop ring (43) which is sleeved on the outer side of the rotating shaft (41) and a pressing sleeve (44) which is sleeved on the end of the rotating shaft (41), the stop ring (43) and the annular protruding portion (42) are respectively abutted with both sides of the inner ring of the bearing (5), the pressing sleeve (44) is fixed on the end of the rotating shaft (41) through a locking piece (45), and the pressing sleeve (44) is abutted with the stop ring (43).

4. The cross-roller bearing automatic assembly machine according to claim 3, characterized in that: The locking piece (45) is a locking bolt.

5. The cross-roller bearing automatic assembly machine according to claim 1, characterized in that: The clamping device comprises a support plate (6), a fixing frame (61) arranged on the support plate (6) and a pressing cylinder (62) arranged on the fixing frame (61), the support plate (6) is provided with a fixed V-shaped seat (64), a piston rod of the pressing cylinder (62) is slidably penetrated through the fixing frame (61) and is provided with a moving V-shaped seat (63) at the end, and the pressing cylinder (62) is used for driving the moving V-shaped seat (63) to move close to or away from the fixed V-shaped seat (64) so as to clamp or loosen the outer ring of the bearing (5).

6. An automatic cross-roller bearing assembly machine according to claim 5, wherein: The fixing frame (61) is in an L shape, the fixing frame (61) comprises a vertical portion connected with the support plate (6) and a horizontal portion connected with the vertical portion, and the pressing cylinder (62) is arranged on the horizontal portion.

7. The cross-roller bearing automatic assembly machine according to claim 1, characterized in that: The side, away from the fixed V-shaped seat (64), of the moving V-shaped seat (63) is provided with a guide rod (65) penetrating through the horizontal portion.

8. The cross-roller bearing automatic assembly machine according to claim 1, characterized in that: The inner sides of the V-shaped grooves of the fixed V-shaped seat (64) and the moving V-shaped seat (63) are provided with rubber pads.

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