Feeding device for mechanical part machining

Abstract

The invention relates to the technical field of manipulators, in particular to a feeding device for mechanical part machining, which comprises a manipulator, a deep groove ball bearing is arranged on the manipulator, the deep groove ball bearing comprises a bearing inner ring, a roller and a bearing outer ring, a retainer is arranged between the bearing inner ring and the bearing outer ring, the retainer is provided with a plurality of limiting rings, and the limiting rings are arranged on the bearing inner ring and the roller. The limiting rings are used for installing rollers, the multiple limiting rings are evenly distributed around the axis of the bearing inner ring, the axis of each limiting ring is perpendicular to the axis of the bearing inner ring, and a guide plate is arranged between every two adjacent limiting rings. The axial direction of the bearing inner ring is set to be the left-right direction, the inclination directions of the multiple guide plates are consistent, a certain included angle is formed between each guide plate and the axis of the bearing inner ring, and when the retainer rotates around the axis of the bearing inner ring, the multiple guide plates can guide lubricating liquid in the deep groove ball bearing to obliquely flow in the left-right direction; the lubricating effect of the roller and the limiting ring is enhanced, and the abrasion degree of the roller and the limiting ring is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of manipulators, and in particular to a feeding device for machining mechanical parts. Background Art

[0002] A manipulator is an automatic device that can imitate certain movements and functions of human hands and arms and is used to grasp, move objects or operate tools according to a fixed procedure.

[0003] Deep groove ball bearings are usually used at the joints of the robot. However, since the robot frequently moves back and forth during the processing and loading of parts, the rollers and cages in the deep groove ball bearings on the robot will wear, making the deep groove ball bearings easily damaged, which in turn affects the processing and loading efficiency of the robot. Summary of the invention

[0004] Based on this, it is necessary to provide a feeding device for machining mechanical parts to address the technical problem that the deep groove ball bearings on the current manipulators are easily damaged.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A feeding device for machining mechanical parts, comprising a manipulator, wherein the manipulator is provided with a deep groove ball bearing, wherein the deep groove ball bearing comprises a bearing inner ring, a roller and a bearing outer ring, wherein a retaining frame is provided between the bearing inner ring and the bearing outer ring, wherein the retaining frame has a plurality of limit rings, wherein the limit rings are used to install rollers, wherein the plurality of limit rings are evenly distributed around the axis of the bearing inner ring, and the axis of each limit ring is perpendicular to the axis of the bearing inner ring, and a guide plate is provided between two adjacent limit rings; the axis direction of the bearing inner ring is set to the left-right direction, and the inclination directions of the plurality of guide plates are consistent and all have a certain angle with the axis of the bearing inner ring, and the left and right sides of the guide plate are at the same distance from the axis of the bearing inner ring, and when the retaining frame rotates around the axis of the bearing inner ring, the plurality of guide plates can guide the lubricating fluid inside the deep groove ball bearing to flow obliquely along the left-right direction.

[0007] Furthermore, the retaining frame includes a left retaining frame and a right retaining frame, and the left retaining frame is detachably connected to the right retaining frame.

[0008] Furthermore, the left retaining frame includes a plurality of left limiting parts, the left limiting parts are semicircular, and two adjacent left limiting parts are connected by a left connecting plate. The right retaining frame includes a plurality of right limiting parts, the right limiting parts are semicircular, and two adjacent right limiting parts are connected by a right connecting plate. The left limiting part and the right limiting part are butt-jointed to form the limiting ring, and the left connecting plate and the right connecting plate are connected by rivets.

[0009] Furthermore, a left guide plate is provided on the left connecting plate, and the left guide plate is connected to two adjacent left limiting parts. A right guide plate is provided on the right connecting plate, and the right guide plate is connected to two adjacent right limiting parts. The left guide plate and the right guide plate are connected to form the guide plate; the left guide plate and the right guide plate have the same shape, and the left guide plate and the right guide plate connected to each other are symmetrical around the diameter center of the inner ring of the bearing.

[0010] Furthermore, a partition plate is provided on both the left guide plate and the right guide plate, the length direction of the partition plate is consistent with the inclination direction of the guide plate, and along the radial direction of the inner ring of the bearing, the partition plate is perpendicular to the guide plate.

[0011] Furthermore, two partition plates are provided on the left guide plate and the right guide plate, and the two partition plates are distributed on the left and right, one of the partition plates is located in the middle of the guide plate, and the other partition plate is located at the edge of the guide plate.

[0012] Furthermore, the length of the partition plate located in the middle of the guide plate is smaller than the length of the partition plate located at the edge of the guide plate.

[0013] Furthermore, two bearing end covers are provided between the bearing inner ring and the bearing outer ring, the two bearing end covers are distributed on the left and right, and the retaining frame is located between the two bearing end covers.

[0014] Furthermore, the robot also includes a base, on which a first rotating arm, a second rotating arm, a third rotating arm, a fourth rotating arm, a fifth rotating arm and a sixth rotating arm are sequentially provided, and two adjacent rotating arms are rotatably connected.

[0015] Furthermore, the sixth rotating arm is provided with a clamping claw, and the clamping claw is used to clamp mechanical parts.

[0016] The beneficial effects of the present invention are:

[0017] The feeding device for machining mechanical parts provided by the present invention is provided with a plurality of guide plates on the retaining frame of the deep groove ball bearing, so that when the retaining frame rotates around the axis of the inner ring of the bearing, the plurality of guide plates can guide the lubricating fluid inside the deep groove ball bearing to flow obliquely in the left and right directions, thereby enhancing the lubrication effect of the roller and the limit ring and reducing the degree of wear of the roller and the limit ring.

[0018] Secondly, the lubricating fluid flowing obliquely along the guide plate will apply a torque to the roller, which will cause the roller to rotate, thereby changing the contact position between the roller and the limit ring, preventing a certain position of the roller from generating friction loss with the limit ring for a long time, thereby extending the service life of the roller.

[0019] Third, the lubricating liquid flows left and right under the guidance of the guide plate, which will have a certain impact on the inner side surfaces of the left and right bearing end covers, promote the exchange flow of the lubricating liquid between the left and right bearing end covers, reduce the wall flow phenomenon on the bearing end covers, promote the full flow of the lubricating liquid, and improve the lubrication effect of the deep groove ball bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a feeding device for machining mechanical parts provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of a deep groove ball bearing in a feeding device for machining mechanical parts provided by an embodiment of the present invention;

[0022] Figure 3 An exploded schematic diagram of a deep groove ball bearing in a feeding device for machining mechanical parts provided by an embodiment of the present invention;

[0023] Figure 4 A schematic cross-sectional view of a deep groove ball bearing in a feeding device for machining mechanical parts provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of a portion of the structure of a deep groove ball bearing in a feeding device for machining mechanical parts provided by an embodiment of the present invention;

[0025] Figure 6 for Figure 5 A magnified view of the structure at center;

[0026] Figure 7 A schematic structural diagram of a retainer of a deep groove ball bearing in a feeding device for machining mechanical parts provided in one embodiment of the present invention.

[0027] in:

[0028] 100, base; 210, first rotating arm; 220, second rotating arm; 230, third rotating arm; 240, fourth rotating arm; 250, fifth rotating arm; 260, sixth rotating arm; 270, clamping jaw; 300, deep groove ball bearing; 310, bearing outer ring; 320, bearing inner ring; 330, bearing end cover; 340, roller; 350, retaining frame; 351, left limiting part; 3511, partition plate; 3512, left guide plate; 3513, left connecting plate; 352, right limiting part; 353, rivet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] like Figures 1 to 7 As shown, a feeding device for machining mechanical parts provided by an embodiment of the present invention includes a manipulator, on which a deep groove ball bearing 300 is provided, and the deep groove ball bearing 300 includes a bearing inner ring 320, a roller 340 and a bearing outer ring 310, and a retaining frame 350 is provided between the bearing inner ring 320 and the bearing outer ring 310, and the retaining frame 350 has a plurality of limiting rings, and the limiting rings are used to install the rollers 340, and the plurality of limiting rings are evenly distributed around the axis of the bearing inner ring 320, and the axis of each limiting ring is perpendicular to the axis of the inner ring 320. The axis of the inner ring 320 of the bearing is provided with a guide plate between two adjacent limit rings; the axis direction of the inner ring 320 of the bearing is set to the left-right direction, and the inclination direction of the multiple guide plates is consistent and they all have a certain angle with the axis of the inner ring 320 of the bearing, and the angle is less than 90 degrees, so that the guide plate is inclined in the left-right direction, and the distance between the left and right sides of the guide plate and the axis of the inner ring 320 of the bearing is consistent. When the retainer 350 rotates around the axis of the inner ring 320 of the bearing, the multiple guide plates can guide the lubricating fluid inside the deep groove ball bearing 300 to flow in the left-right direction. The outer circumference of the inner ring 320 of the bearing and the inner circumference of the outer ring 310 of the bearing are both provided with an annular groove, and the roller 340 slides around the annular groove.

[0033] The bearing inner ring 320 is set to rotate in the front-to-back direction, and the guide plate connects the rearmost end of the front limit ring and the frontmost end of the rear limit ring.

[0034] In one embodiment, the retainer 350 includes a left retainer and a right retainer, and the left retainer is detachably connected to the right retainer. The detachable connection between the left retainer and the right retainer facilitates the assembly of the roller 340.

[0035] In one embodiment, the left retaining frame includes a plurality of left limiting portions 351, each of which is semicircular in shape, and two adjacent left limiting portions 351 are connected via a left connecting plate 3513; the right retaining frame includes a plurality of right limiting portions 352, each of which is semicircular in shape, and two adjacent right limiting portions 352 are connected via a right connecting plate; the left limiting portion 351 and the right limiting portion 352 are butt-jointed with each other to form the limiting ring, and the left connecting plate 3513 and the right connecting plate are connected via rivets 353.

[0036] In one embodiment, a left guide plate 3512 is provided on the left connecting plate 3513, and the left guide plate 3512 is connected to two adjacent left limiting portions 351; a right guide plate is provided on the right connecting plate, and the right guide plate is connected to two adjacent right limiting portions 352; the left guide plate 3512 and the right guide plate are connected to form the guide plate; the left guide plate 3512 has the same shape as the right guide plate, and the left guide plate 3512 and the right guide plate connected to each other are symmetrical around the diameter center of the bearing inner ring 320.

[0037] In one embodiment, a partition plate 3511 is provided on both the left guide plate 3512 and the right guide plate, and the length direction of the partition plate 3511 is consistent with the inclination direction of the guide plate, and along the radial direction of the bearing inner ring 320, the partition plate 3511 is perpendicular to the guide plate.

[0038] In one embodiment, two partition plates 3511 are provided on the left guide plate 3512 and the right guide plate. The two partition plates 3511 are distributed on the left and right, one of the partition plates 3511 is located in the middle of the guide plate, and the other partition plate 3511 is located at the edge of the guide plate.

[0039] In one embodiment, the length of the partition plate 3511 located in the middle of the guide plate is shorter than the length of the partition plate 3511 located at the edge of the guide plate. This arrangement makes it easier for the lubricating fluid to flow.

[0040] In one embodiment, two bearing end covers 330 are further disposed between the bearing inner ring 320 and the bearing outer ring 310, the two bearing end covers 330 are distributed left and right, and the retainer 350 is located between the two bearing end covers 330. The bearing end covers 330 can prevent lubricating fluid from leaking, so that the deep groove ball bearing 300 does not need to add lubricating fluid during use.

[0041] In one embodiment, the robot further includes a base 100, on which a first rotating arm 210, a second rotating arm 220, a third rotating arm 230, a fourth rotating arm 240, a fifth rotating arm 250 and a sixth rotating arm 260 are sequentially provided, and two adjacent rotating arms are rotatably connected.

[0042] In one embodiment, the sixth rotating arm 260 is provided with a clamping claw 270 , and the clamping claw 270 is used to clamp mechanical parts.

[0043] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0044] The manipulator is started to control the first rotating arm 210, the second rotating arm 220, the third rotating arm 230, the fourth rotating arm 240, the fifth rotating arm 250 and the sixth rotating arm 260 to rotate, so that the clamping claw 270 on the sixth rotating arm 260 clamps the mechanical parts for loading and processing. The deep groove ball bearing 300 on the manipulator will rotate, the inner ring 320 of the bearing drives the roller 340 to rotate, and the rotation of the roller 340 drives the retaining frame 350 to rotate.

[0045] Taking the case where the inner ring 320 of the bearing rotates in the positive direction around its own axis as an example, Figure 5 From left to right in the figure, the inner ring 320 of the bearing rotates clockwise. At this time, the retainer 350 and the roller 340 also rotate clockwise synchronously. Figure 6 In the figure, the position of the limit ring a and the position of the limit ring b can be understood as the front end and the rear end of the limit ring in the rotation direction.

[0046] When the robot stops or starts suddenly, Figure 5 and Figure 6 As shown, instantaneous acceleration and deceleration will cause a large collision between the roller 340 and the position of the limit ring a. Since the guide plate can guide the lubricating fluid inside the deep groove ball bearing 300 to flow in a slanting direction in the left and right directions, and the guide plate is connected to two adjacent limit rings, the lubricating fluid can be guided to the position of the limit ring a ( Figure 6 The arrow in the figure represents the flow direction of the lubricating liquid), thereby enhancing the lubrication effect at the position of the roller 340 and the limiting ring a and reducing the degree of wear at the position of the roller 340 and the limiting ring a.

[0047] Secondly, since the roller 340 rolls around the rolling axis c in the bearing, the wear degree of the part close to the rolling axis c and the part far from the rolling axis c are inconsistent, which will cause uneven wear of the roller 340, thereby affecting the service life of the roller 340. The lubricating fluid flowing obliquely along the guide plate will apply a torque to the roller 340, the rotation axis of which is perpendicular to the rolling axis c and along the radial direction of the bearing inner ring 320. The torque will cause the roller 340 to rotate, thereby changing the contact position of the roller 340 with the position of the limit ring a, preventing a certain position of the roller 340 from generating friction loss with the position of the limit ring a for a long time, thereby extending the service life of the roller 340.

[0048] Third, the lubricating liquid inside the existing deep groove ball bearing 300 is usually squeezed to a position close to the bearing end cover 330 as the roller 340 rolls. Since the moving speeds of the bearing end cover 330 and the roller 340 are inconsistent, the lubricating liquid will have a wall flow phenomenon, which reduces the circulation fluidity of the lubricating liquid. After the present invention sets a guide plate on the retaining frame 350, the lubricating liquid in the deep groove ball bearing 300 flows left and right under the guidance of the guide plate, which will have a certain impact on the inner side surfaces of the left and right bearing end covers 330, promote the exchange flow of the lubricating liquid between the left and right bearing end covers 330, reduce the wall flow phenomenon on the bearing end cover 330, promote the full flow of the lubricating liquid, and improve the lubrication effect of the deep groove ball bearing 300.

[0049] When the bearing inner ring 320 rotates in the opposite direction around its own axis, Figure 5 From left to right in the figure, the inner ring 320 of the bearing rotates counterclockwise. At this time, the retaining frame 350 and the roller 340 also rotate counterclockwise synchronously, and the guide plate guides the lubricating fluid on the right side of the retaining frame 350 to the position of the limit ring b. At this time, the lubricating fluid can reduce the wear degree of the roller 340 and the position of the limit ring b.

[0050] Finally, stop the robot after loading is completed.

[0051] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A feeding device for machining mechanical parts, characterized in that: The invention comprises a manipulator, wherein the manipulator is provided with a deep groove ball bearing, wherein the deep groove ball bearing comprises a bearing inner ring, a roller and a bearing outer ring, a retaining frame is provided between the bearing inner ring and the bearing outer ring, and the retaining frame has a plurality of limit rings, wherein the limit rings are used to install the rollers, and the plurality of limit rings are evenly distributed around the axis of the bearing inner ring, and the axis of each limit ring is perpendicular to the axis of the bearing inner ring, and a guide plate is provided between two adjacent limit rings; the axis direction of the bearing inner ring is set to the left-right direction, the inclination directions of the plurality of guide plates are consistent and they all have a certain angle with the axis of the bearing inner ring, the left and right sides of the guide plate are at the same distance from the axis of the bearing inner ring, and when the retaining frame rotates around the axis of the bearing inner ring, the plurality of guide plates can guide the lubricating fluid inside the deep groove ball bearing to flow obliquely along the left-right direction.

2. The feeding device for machining mechanical parts according to claim 1, characterized in that: The retaining frame comprises a left retaining frame and a right retaining frame, and the left retaining frame is detachably connected to the right retaining frame.

3. The feeding device for machining mechanical parts according to claim 2, characterized in that: The left retaining frame includes a plurality of left limiting parts, each of which is semicircular, and two adjacent left limiting parts are connected by a left connecting plate. The right retaining frame includes a plurality of right limiting parts, each of which is semicircular, and two adjacent right limiting parts are connected by a right connecting plate. The left limiting part and the right limiting part are butt-jointed to form the limiting ring, and the left connecting plate and the right connecting plate are connected by rivets.

4. The feeding device for machining mechanical parts according to claim 3, characterized in that: The left connecting plate is provided with a left guide plate, and the left guide plate is connected to two adjacent left limiting parts. The right connecting plate is provided with a right guide plate, and the right guide plate is connected to two adjacent right limiting parts. The left guide plate and the right guide plate are butt-jointed to form the guide plate; the left guide plate and the right guide plate have the same shape, and the butt-jointed left guide plate and the right guide plate are symmetrical around the diameter center of the bearing inner ring.

5. The feeding device for machining mechanical parts according to claim 4, characterized in that: The left guide plate and the right guide plate are both provided with a partition plate, the length direction of the partition plate is consistent with the inclination direction of the guide plate and is along the radial direction of the inner ring of the bearing, and the partition plate is perpendicular to the guide plate.

6. The feeding device for machining mechanical parts according to claim 5, characterized in that: There are two partition plates on the left guide plate and the right guide plate, and the two partition plates are distributed on the left and right, one of the partition plates is located in the middle of the guide plate, and the other partition plate is located at the edge of the guide plate.

7. The feeding device for machining mechanical parts according to claim 6, characterized in that: The length of the partition plate located at the middle position of the guide plate is shorter than the length of the partition plate located at the edge position of the guide plate.

8. The feeding device for machining mechanical parts according to claim 1, characterized in that: Two bearing end covers are also arranged between the bearing inner ring and the bearing outer ring, and the two bearing end covers are distributed on the left and right, and the retaining frame is located between the two bearing end covers.

9. The feeding device for machining mechanical parts according to claim 1, characterized in that: The manipulator also includes a base, on which a first rotating arm, a second rotating arm, a third rotating arm, a fourth rotating arm, a fifth rotating arm and a sixth rotating arm are sequentially arranged, and two adjacent rotating arms are rotatably connected.

10. The feeding device for machining mechanical parts according to claim 9, characterized in that: The sixth rotating arm is provided with a clamping claw, and the clamping claw is used for clamping mechanical parts.

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