Bearing clamping and positioning mechanism

Abstract

The bearing clamping and positioning mechanism is characterized by comprising a bottom plate (1), a tension spring supporting column (2), a tension spring (3), a tension spring stand column (4), a front joint (5), a fixing ring (6), two connecting rods (7), three guide rods (8), a middle joint (9), a rear joint (10), a pushing disc (11), a plurality of cylindrical pins and a plurality of screws. Wherein the tension spring supporting column (2) is connected in a first threaded hole (11) in the bottom plate (1) in a threaded mode, a hook at one end of the tension spring (3) is hooked in a groove of the tension spring supporting column (2), and a hook at the other end of the tension spring (3) is hooked in a groove of the tension spring stand column (4). The front joint (5) is provided with four through holes, namely a first front joint through hole (51), a second front joint through hole (52), a third front joint through hole (53) and a fourth front joint through hole (54); the bearing storage device is simple in structure, ingenious in design, capable of achieving clamping and positioning during storage before bearing automatic assembly, and convenient to act.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of bearing assembly, and relates to a bearing clamping and positioning method and mechanism. BACKGROUND

[0002] The bearing is a common important part in aviation, aerospace, ship and various mechanical equipment, and mainly functions to support a mechanical rotating body, reduce a friction coefficient in a movement process of the mechanical rotating body, and ensure the rotation precision. At present, in the field of aerospace, bearings are installed on parts in a manner of knocking and pressing by using tools or fixtures according to the assembly position. Since the bearing is tightly matched with the installation hole, the knocking manner is easy to damage the product, and there is a risk of hand injury or knocking injury. SUMMARY

[0003] The application belongs to the field of bearing assembly, and relates to a bearing clamping and positioning method and mechanism, which realizes clamping and positioning of bearings during storage before automatic assembly.

[0004] The application discloses a bearing clamping and positioning mechanism which is characterized by comprising a bottom plate 1, a tension spring support 2, a tension spring 3, a tension spring stand 4, a front joint 5, a fixing ring 6, two connecting rods 7, three guide rods 8, a middle joint 9, a rear joint 10, a pushing disc 11, a plurality of cylindrical pins and a plurality of screws, wherein the tension spring support 2 is screwed in a first threaded hole 11 on the bottom plate 1, one end of the tension spring 3 is hooked in a groove of the tension spring support 2, and the other end of the tension spring 3 is hooked in a groove of the tension spring stand 4; the front joint 5 is provided with four through holes, i.e. a first front joint through hole 51, a second front joint through hole 52, a third front joint through hole 53 and a fourth front joint through hole 54; the first front joint through hole 51 and the fourth front joint through hole 54 are provided with threads, and the tension spring stand 4 is screwed in the first front joint through hole 51 of the front joint 5; the fixing ring 6 is provided with six through holes, i.e. a first fixing ring through hole 61, a second fixing ring through hole 62, a third fixing ring through hole 63, a fourth fixing ring through hole 64, a fifth fixing ring through hole 65 and a sixth fixing ring through hole 66; the first fixing ring through hole 61, the second fixing ring through hole 62 and the third fixing ring through hole 63 are provided with threads, the fixing ring 6 is fixed in a second bottom plate threaded hole 12, a third bottom plate threaded hole 13 and a fourth bottom plate threaded hole 14 of the bottom plate 1 through the first fixing ring through hole 61, the second fixing ring through hole 62, the third fixing ring through hole 63 and screws, the second front joint through hole 52 of the front joint 5 is matched with the fourth fixing ring through hole 64 of the fixing ring 6, and the front joint 5 and the fixing ring 6 are connected through a cylindrical pin; the third front joint through hole 53 of the front joint 5 is matched with a first connecting rod through hole 71 of the connecting rod 7, the front joint 5 and the connecting rod 7 are connected through a cylindrical pin, the fourth front joint through hole 54 of the front joint 5 is matched with a boss 81 of the guide rod 8, and the front joint 5 and the guide rod 8 are connected through a screw; the middle joint 9 is provided with four holes, wherein a first middle joint through hole 91, a second middle joint through hole 92 and a third middle joint through hole 93 are through holes, and a fourth middle joint through hole 94 is provided with threads; the first middle joint through hole 91 of the middle joint 9 is matched with the second connecting rod through hole 72 of the connecting rod 7, and the connecting rod 7 and the middle joint 9 are connected through a cylindrical pin; the second middle joint through hole 92 of the middle joint 9 is matched with the fifth fixing ring through hole 65 of the fixing ring 6, and the middle joint 9 and the fixing ring 6 are connected through a cylindrical pin; the through hole 93 of the middle joint 9 is matched with the through hole 71 of the connecting rod 7, and the middle joint 9 and the connecting rod 7 are connected through a cylindrical pin; the threaded hole 94 of the middle joint 9 is matched with the boss 81 of the guide rod 8, and the middle joint 9 and the guide rod 8 are connected through a screw; the rear joint 10 is provided with three holes, i.e. a first rear joint through hole 101, a second rear joint through hole 102 and a third rear joint through hole 103, wherein the first rear joint through hole 101 and the second rear joint through hole 102 are through holes, and the third rear joint through hole 103 is provided with threads; the through hole 101 of the rear joint 10 is matched with the second connecting rod through hole 72 of the connecting rod 7, and the rear joint 10 and the connecting rod 7 are connected through a cylindrical pin.The through hole 102 of the rear joint 10 cooperates with the sixth fixing ring through hole 66 of the fixing ring 6, and the rear joint 10 and the fixing ring 6 are connected through a cylindrical pin; the threaded hole 103 of the rear joint 10 cooperates with the boss 81 of the guide rod 8, and the rear joint 10 and the guide rod 8 are connected through a screw; the pushing disc 11 has three long circular through holes, which are a first pushing disc long circular through hole 111, a first pushing disc long circular through hole 112 and a first pushing disc long circular through hole 113; three guide rods 8 pass through the three long circular through holes of the pushing disc 11 respectively, and the pushing disc 11 can freely slide up and down in the vertical direction of the guide rod;

[0005] When working, the front joint 5 is turned clockwise and kept, the tension spring 3 is opened, through the spring tension and the working principle of the connecting rod mechanism, the three guide rods 8 are driven to be radially opened along the three long circular holes of the pushing disc 11, the bearing is placed in the middle of the three guide rods, and then the front joint 5 is released, the tension spring 3 is contracted, through the spring tension and the working principle of the connecting rod mechanism, the three guide rods 8 are driven to be radially closed along the three long circular holes of the pushing disc 11, and the bearing is clamped. The three guide rods are tangent to the three points on the outer circle of the bearing, the three points define the center, and the positioning of the bearing is realized.

[0006] The guide rod 8 moves in the three long circular holes with equal distances.

[0007] The pushing disc 11 can move horizontally upwards or downwards.

[0008] The connecting rod 7 is a one-third circular ring.

[0009] Beneficial effects

[0010] The application has the advantages of simple structure, ingenious design, realization of clamping and positioning of the bearing during automatic assembly and pre-storage, and convenient action. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a front view of the application;

[0012] Figure 2 It is a top view of the application;

[0013] Figure 3 It is Figure 2 It is a view after the pushing disc 11 is removed;

[0014] Figure 4 It is a partial structure schematic view of the application;

[0015] (a) is a connection structure schematic view of the tension spring support 2, the tension spring 3, the tension spring stand 4, the front joint 5, two connecting rods 7, three guide rods 8, a middle joint 9 and a rear joint 10;

[0016] (b) is a schematic view of the structure mounted on the fixed ring 6 of the structure of figure (a);

[0017] Figure 5 is a schematic view of the base plate structure of the present application;

[0018] Figure 6 is a schematic view of the tension spring strut structure of the present application;

[0019] Figure 7 is a schematic view of the tension spring structure of the present application;

[0020] Figure 8 is a schematic view of the tension spring strut structure of the present application;

[0021] Figure 9 is a schematic view of the front joint structure of the present application;

[0022] Figure 10 is a schematic view of the fixed ring structure of the present application;

[0023] (a) is a schematic view of the fixed ring structure of the present application;

[0024] (b) is a schematic view of the fixed ring in the vertical direction of 180 degrees of the structure of (a);

[0025] Figure 11 is a schematic view of the connecting rod structure of the present application;

[0026] Figure 12 is a schematic view of the guide rod structure of the present application;

[0027] Figure 13 is a schematic view of the intermediate joint structure of the present application;

[0028] Figure 14 is a schematic view of the rear joint structure of the present application;

[0029] Figure 15 is a schematic view of the push disc structure of the present application;

[0030] Figure 16 is a schematic view of the bearing clamping positioning state of the present application.

[0031] Wherein, 1 is the bottom plate, 2 is the pull spring support, 3 is the pull spring, 4 is the pull spring stand, 5 is the front joint, 6 is the fixed ring, 7 is the connecting rod, 8 is the guide rod, 9 is the intermediate joint, 10 is the rear joint, 11 is the push disc, 12 is the bearing, 13 is the cylindrical pin, 14 is the screw, 15 is the bearing to be installed, 51 is the first front joint through hole, 52 is the second front joint through hole, 53 is the third front joint through hole, and 54 is the fourth front joint through hole, 61 is the first fixed ring through hole, 62 is the second fixed ring through hole, 63 is the third fixed ring through hole, 64 is the fourth fixed ring through hole, 65 is the fifth fixed ring through hole, 66 is the sixth fixed ring through hole, 71 is the first connecting rod through hole, 72 is the second connecting rod through hole, 91 is the first intermediate joint through hole, 92 is the second intermediate joint through hole, 93 is the third intermediate joint through hole, 91 is the intermediate joint through hole, 94 is the fourth intermediate joint through hole, 101 is the first rear joint through hole, 102 is the second rear joint through hole, 103 is the third rear joint through hole, 103 is the threaded hole thereof, 111 is the first push disc long circular through hole, 112 is the first push disc long circular through hole, and 113 is the first push disc long circular through hole. DETAILED DESCRIPTION

[0032] A bearing clamping positioning mechanism, characterized by comprising a base plate 1, a tension spring support 2, a tension spring 3, a tension spring stand 4, a front joint 5, a fixed ring 6, two connecting rods 7, three guide rods 8, a middle joint 9, a rear joint 10, a pushing disc 11, a plurality of cylindrical pins and a plurality of screws. The tension spring support 2 is screwed into the threaded hole 11 of the base plate 1, one end of the hook of the tension spring 3 is hooked in the groove of the tension spring support, and the other end of the hook of the tension spring 3 is hooked in the groove of the tension spring stand 4. The front joint 5 has four through holes 51, 52, 53 and 54, the holes 51 and 54 are provided with threads, and the tension spring stand 4 is screwed into the threaded through hole 51 of the front joint 5. The fixed ring 6 has six through holes, three of which 61, 62 and 63 are provided with threads, and the fixed ring 6 is fixed in the threaded holes 12, 13 and 14 of the base plate 1 through the threaded holes 61, 62 and 63 and screws. The through hole 52 of the front joint 5 cooperates with the through hole 64 of the fixed ring 6, and the front joint 5 and the fixed ring 6 are connected through a cylindrical pin. The through hole 53 of the front joint 5 cooperates with the through hole 71 of the connecting rod 7, and the front joint 5 and the connecting rod 7 are connected through a cylindrical pin. The threaded hole 54 of the front joint 5 cooperates with the boss 81 of the guide rod 8, and the front joint 5 and the guide rod 8 are connected through a screw. The middle joint 9 has four holes, three of which 91, 92 and 93 are through holes, and the threaded hole 94 contains threads. The through hole 91 of the middle joint 9 cooperates with the through hole 72 of the connecting rod 7, and the connecting rod 7 and the middle joint 9 are connected through a cylindrical pin. The through hole 92 of the middle joint 9 cooperates with the through hole 65 of the fixed ring 6, and the middle joint 9 and the fixed ring 6 are connected through a cylindrical pin. The through hole 93 of the middle joint 9 cooperates with the through hole 71 of the connecting rod 7, and the middle joint 9 and the connecting rod 7 are connected through a cylindrical pin. The threaded hole 94 of the middle joint 9 cooperates with the boss 81 of the guide rod 8, and the middle joint 9 and the guide rod 8 are connected through a screw. The rear joint 10 has three holes, two of which 101 and 102 are through holes, and the threaded hole 103 contains threads. The through hole 101 of the rear joint 10 cooperates with the through hole 72 of the connecting rod 7, and the rear joint 10 and the connecting rod 7 are connected through a cylindrical pin. The through hole 102 of the rear joint 10 cooperates with the through hole 66 of the fixed ring 6, and the rear joint 10 and the fixed ring 6 are connected through a cylindrical pin. The threaded hole 103 of the rear joint 10 cooperates with the boss 81 of the guide rod 8, and the rear joint 10 and the guide rod 8 are connected through a screw. The pushing disc 11 has three long circular through holes, which are 111, 112 and 113 respectively. The three guide rods 8 pass through the three long circular through holes of the pushing disc 11 respectively, and the pushing disc can freely slide up and down in the vertical direction of the guide rod.

[0033] When working, the front joint 5 is turned clockwise and kept, the tension spring 5 is opened, through the working principle of spring tension and connecting rod mechanism, the three guide rods 8 are driven to open radially along the three long circular holes of the pushing disc 11, the bearing is placed in the middle of the three guide rods and above, is placed vertically downward along the guide rod on the pushing disc 11, then the front joint 5 is released, the tension spring 3 is contracted, through the working principle of spring tension and connecting rod mechanism, the three guide rods 8 are driven to close radially along the three long circular holes of the pushing disc 11, and the bearing is clamped. The three guide rods are tangent to the outer circumference of the bearing at three points, the three points define the center, and the positioning of the bearing is realized.

[0034] The mechanism relates to the technical field of mechanism, and is characterized by comprising a bottom plate 1, a pull spring support 2, a pull spring 3, a pull spring stand 4, a front joint 5, a fixed ring 6, two connecting rods 7, three guide rods 8, a middle joint 9, a rear joint 10, a pushing disc 11, a plurality of cylindrical pins and a plurality of screws. The mechanism adopts a ring structure, wherein the pull spring support 2 is screwed in a threaded hole 11 of the bottom plate 1, one end of the pull spring 3 is hooked in a groove of the pull spring support, and the other end of the pull spring 3 is hooked in a groove of the pull spring stand 4; the front joint 5 is provided with four through holes 51, 52, 53 and 54, threaded holes are arranged in the through holes 51 and 54, and the pull spring stand 4 is screwed in the threaded through hole 51 of the front joint 5; the fixed ring 6 is provided with six through holes, threaded holes are arranged in three through holes 61, 62 and 63, the fixed ring 6 is fixed in threaded holes 12, 13 and 14 of the bottom plate 1 through the threaded holes 61, 62 and 63 and the screws, the through hole 52 of the front joint 5 is matched with a through hole 64 of the fixed ring 6, and the front joint 5 and the fixed ring 6 are connected through the cylindrical pin; the through hole 53 of the front joint 5 is matched with a through hole 71 of the connecting rod 7, the front joint 5 and the connecting rod 7 are connected through the cylindrical pin, and a threaded hole 54 of the front joint 5 is matched with a boss 81 of the guide rod 8, and the front joint 5 and the guide rod 8 are connected through the screw; the middle joint 9 is provided with four holes, the through holes 91, 92 and 93 are through holes, and a threaded hole is arranged in the through hole 94; the through hole 91 of the middle joint 9 is matched with the through hole 72 of the connecting rod 7, and the connecting rod 7 and the middle joint 9 are connected through the cylindrical pin; the through hole 92 of the middle joint 9 is matched with the through hole 65 of the fixed ring 6, and the middle joint 9 and the fixed ring 6 are connected through the cylindrical pin; the through hole 93 of the middle joint 9 is matched with the through hole 71 of the connecting rod 7, and the middle joint 9 and the connecting rod 7 are connected through the cylindrical pin; the threaded hole 94 of the middle joint 9 is matched with the boss 81 of the guide rod 8, and the middle joint 9 and the guide rod 8 are connected through the screw; the rear joint 10 is provided with three holes, the through holes 101 and 102 are through holes, and a threaded hole is arranged in the through hole 103; the through hole 101 of the rear joint 10 is matched with the through hole 72 of the connecting rod 7, and the rear joint 10 and the connecting rod 7 are connected through the cylindrical pin; the through hole 102 of the rear joint 10 is matched with the through hole 66 of the fixed ring 6, and the rear joint 10 and the fixed ring 6 are connected through the cylindrical pin; the threaded hole 103 of the rear joint 10 is matched with the boss 81 of the guide rod 8, and the rear joint 10 and the guide rod 8 are connected through the screw; the pushing disc 11 is provided with three long circular through holes 111, 112 and 113, the three guide rods 8 pass through the three long circular through holes of the pushing disc 11 respectively, and the pushing disc can slide freely in the vertical direction of the guide rod.

[0035] When working, the front joint 5 is turned clockwise and kept, the tension spring 5 is opened, through the spring tension and the working principle of the connecting rod mechanism, the three guide rods 8 are driven to open radially along the three long circular holes of the pushing disc 11, the bearing is placed in the middle of the three guide rods and above, is placed vertically along the guide rod and downward on the pushing disc 11, then the front joint 5 is released, the tension spring 3 is contracted, through the spring tension and the working principle of the connecting rod mechanism, the three guide rods 8 are driven to close radially along the three long circular holes of the pushing disc 11, and the bearing is clamped. The three guide rods are tangent to the three points on the outer circumference of the bearing, the three points define the center, and the positioning of the bearing is realized.

[0036] The purpose of the present application is to provide a method and mechanism for bearing clamping and positioning, realizing the clamping and positioning of the bearing when the bearing is automatically assembled and stored.

[0037] Embodiment:

[0038] The mechanism relates to the technical field of mechanism, and is characterized by comprising a bottom plate 1, a pull spring support 2, a pull spring 3, a pull spring stand 4, a front joint 5, a fixed ring 6, two connecting rods 7, three guide rods 8, a middle joint 9, a rear joint 10, a pushing disc 11, a plurality of cylindrical pins and a plurality of screws. The mechanism adopts a ring structure, wherein the pull spring support 2 is screwed in a threaded hole 11 of the bottom plate 1, one end of the pull spring 3 is hooked in a groove of the pull spring support, and the other end of the pull spring 3 is hooked in a groove of the pull spring stand 4; the front joint 5 is provided with four through holes 51, 52, 53 and 54, threaded holes are arranged in the through holes 51 and 54, and the pull spring stand 4 is screwed in the threaded through hole 51 of the front joint 5; the fixed ring 6 is provided with six through holes, threaded holes are arranged in three through holes 61, 62 and 63, the fixed ring 6 is fixed in threaded holes 12, 13 and 14 of the bottom plate 1 through the threaded holes 61, 62 and 63 and the screws, the through hole 52 of the front joint 5 is matched with a through hole 64 of the fixed ring 6, and the front joint 5 and the fixed ring 6 are connected through the cylindrical pin; the through hole 53 of the front joint 5 is matched with a through hole 71 of the connecting rod 7, the front joint 5 and the connecting rod 7 are connected through the cylindrical pin, and a threaded hole 54 of the front joint 5 is matched with a boss 81 of the guide rod 8, and the front joint 5 and the guide rod 8 are connected through the screw; the middle joint 9 is provided with four holes, the through holes 91, 92 and 93 are through holes, and a threaded hole is arranged in the through hole 94; the through hole 91 of the middle joint 9 is matched with the through hole 72 of the connecting rod 7, and the connecting rod 7 and the middle joint 9 are connected through the cylindrical pin; the through hole 92 of the middle joint 9 is matched with the through hole 65 of the fixed ring 6, and the middle joint 9 and the fixed ring 6 are connected through the cylindrical pin; the through hole 93 of the middle joint 9 is matched with the through hole 71 of the connecting rod 7, and the middle joint 9 and the connecting rod 7 are connected through the cylindrical pin; the threaded hole 94 of the middle joint 9 is matched with the boss 81 of the guide rod 8, and the middle joint 9 and the guide rod 8 are connected through the screw; the rear joint 10 is provided with three holes, the through holes 101 and 102 are through holes, and a threaded hole is arranged in the through hole 103; the through hole 101 of the rear joint 10 is matched with the through hole 72 of the connecting rod 7, and the rear joint 10 and the connecting rod 7 are connected through the cylindrical pin; the through hole 102 of the rear joint 10 is matched with the through hole 66 of the fixed ring 6, and the rear joint 10 and the fixed ring 6 are connected through the cylindrical pin; the threaded hole 103 of the rear joint 10 is matched with the boss 81 of the guide rod 8, and the rear joint 10 and the guide rod 8 are connected through the screw; the pushing disc 11 is provided with three long circular through holes 111, 112 and 113, the three guide rods 8 pass through the three long circular through holes of the pushing disc 11 respectively, and the pushing disc can slide freely in the vertical direction of the guide rod.

[0039] When working, the front joint 5 is turned clockwise and kept, the tension spring 5 is opened, through the working principle of spring tension and connecting rod mechanism, the three guide rods 8 are driven to open radially along the three long round holes of the pushing disc 11, the bearing is placed in the middle of the three guide rods and above, is placed vertically along the guide rod and downward on the pushing disc 11, then the front joint 5 is released, the tension spring 3 is contracted, through the working principle of spring tension and connecting rod mechanism, the three guide rods 8 are driven to close radially along the three long round holes of the pushing disc 11, and the bearing is clamped. The three guide rods are tangent to the outer circle of the bearing at three points, and the three points define the center, so that the bearing is positioned.

[0040] The application provides a bearing clamping and positioning method and mechanism according to the bearing outer shape and assembly characteristics, the spring elongation is converted into radial displacement through the working principle of spring tension and connecting rod mechanism, and the specific mechanism scheme is as follows: a mechanism for bearing clamping and positioning, comprising a bottom plate, a tension spring support, a tension spring, a tension spring column, a front joint, a fixed ring, a connecting rod, a guide rod, a middle joint, a rear joint, a pushing disc, a plurality of cylindrical pins and a plurality of screws.

[0041] The bottom plate is a cuboid structure, and there is one piece; a threaded through hole 11 is formed at the lower right, used for screwing the tension spring support; three threaded stepped holes 12, 13 and 14 are distributed along the circumference in the middle, used for screwing the connecting fixed ring 6.

[0042] The tension spring support is a screw-shaped stepped cylindrical structure, and there is one piece; the outer surface of the long rod at the screw long end is all threaded structure, used for screwing into the bottom plate; the other end is a nail head shape with a slot, used for applying force when screwing; the screw head and tail are processed into a cylindrical segment similar to a tool withdrawal groove, used for connecting with the tension spring hook.

[0043] The tension spring is a spring structure, and there is one piece; the two ends of the spring are each provided with a hook; one end of the hook is connected with the tension spring support, and the other end of the hook is connected with the tension spring column.

[0044] The tension spring column is a bolt-shaped stepped cylindrical structure, and there is one piece; the outer surface of the long rod at the bolt long end is all threaded structure, used for screwing into the front joint; the middle is a six-square nut structure, used for cooperating with the contact surface of the front joint; the other end is a six-square bolt head structure, used for clamping with a tool; the bolt head and the middle six-square nut are connected through a tool withdrawal groove cylindrical structure.

[0045] The front joint is an L-shaped structure, and there is one piece; the left side has a threaded through hole, used for screwing the screw into the rear connecting guide rod; the middle lower part has a through hole, used for inserting the cylindrical pin into the rear connecting fixed ring; the middle upper part has two circular through holes in the form of a supporting ear, used for inserting the cylindrical pin into the rear connecting connecting rod; the right side arm has a threaded through hole, used for inserting the threaded end of the tension spring column.

[0046] The fixed ring, "I-shaped" 360-degree rotary body structure, the number is 1, the diameter term starts from 0 degrees every 120 degrees direction open rectangular hole, space for the front joint, the middle joint and the rear joint through; The circumferential direction starts from 0 degrees every 120 degrees center processing hole, used for cylindrical pin insertion to fix the front joint, the middle joint and the rear joint; Bottom circumferential 60 degrees, 180 degrees, 300 degrees direction processing 3 holes, used for screw to enter the fixed ring fixed on the bottom plate.

[0047] The connecting rod, arc structure, the number is 1, each end of the arc has a circular hole, used for connecting the front joint, the middle joint and the rear joint.

[0048] The middle joint, "Y-shaped" structure, the number is 1, the left side has a circular hole, used for screw to enter the rear connecting guide rod; The middle lower has a hole, used for cylindrical pin to enter the rear connecting fixed ring; The middle upper ear has two circular holes, used for cylindrical pin to enter the rear connecting rod between the rear joint; The right side has a hole, used for cylindrical pin to enter the rear connecting rod between the front joint.

[0049] The guide rod, ladder-shaped cylindrical structure, slender rod, the number is 1, the cylindrical thin end bottom has a threaded blind hole, used for screw to enter the front joint, the middle joint and the rear joint.

[0050] The rear joint, horseshoe "L" structure, the number is 1, the horseshoe two sides lower end has two circular holes, used for cylindrical pin to enter the rear connecting rod; The middle has a hole, used for cylindrical pin to enter the rear connecting fixed ring; The upper end of the horseshoe has a threaded hole, used for screw to enter the rear and the guide rod connection.

[0051] The push disc, disc structure, the number is 1, the disc face 0 degrees, 120 degrees, 240 degrees direction along the radial direction processing 3 long round holes, used for guide rod to enter, and control the guide rod in the radial direction of movement stroke.

[0052] Specifically, the front joint 5 is turned clockwise and kept, the tension spring 5 is opened, through the spring tension and the connecting rod mechanism working principle, drive 3 guide rods 8 along the 3 long round holes of the push disc 11 radial opening, put the bearing in the middle of the 3 guide rods, place it on the push disc 11 along the vertical direction of the guide rod, then release the front joint 5, the tension spring 3 is contracted, through the spring tension and the connecting rod mechanism working principle, drive 3 guide rods 8 along the 3 long round holes of the push disc 11 radial closing, clamp the bearing. The 3 guide rods are tangent to the 3 points on the outer circumference of the bearing, the three points determine the center, realize the positioning of the bearing.

[0053] The following will be combined with the attached Figure 16The advantages and features of the present application will be more readily understood by reference to the detailed description of preferred examples of the application, which are presented for the purpose of furthering the understanding of the present application, and in no way should be taken as limiting the present application and the appended claims. Thus, the present application should not be limited to the examples disclosed, but should be given the full scope permitted by the claims.

[0054] Figure 16 The present application provides a bearing clamping and positioning method and its mechanism, including the base plate 1 (attached Figure 5 ), pull spring support 2 (attached Figure 6 ), pull spring 3 (attached Figure 7 ), pull spring column 4 (attached Figure 8 ), front joint 5 (attached Figure 9 ), fixed ring 6 (attached Figure 10 ), connecting rod 7 (attached Figure 11 ), guide rod 8 (attached Figure 12 ), intermediate joint 9 (attached Figure 13 ), rear joint 10 (attached Figure 14 ), push plate 11 (attached Figure 15 ), cylindrical pin 13, screw 14 and bearing 15 to be installed.

[0055] First, turn the front joint 5 clockwise and hold it, pull spring 5 open, through the spring tension and connecting rod mechanism working principle, drive 3 guide rods 8 along the 3 long round hole of push plate 11 radial open, put the bearing in the middle of the 3 guide rods above, along the guide rod vertical direction down on the push plate 11, then release the front joint 5, pull spring 3 shrink, through the spring tension and connecting rod mechanism working principle, drive 3 guide rods 8 along the 3 long round hole of push plate 11 radial close, clamp the bearing. 3 guide rods and bearing outer circle 3 point tangent, three point center, realize the positioning of the bearing.

[0056] Note 1: cylindrical pin 13 and screw 14 are standard parts;

[0057] Note 2: the bearing is the clamped and positioned object, therefore, the bearing 15 to be installed does not belong to the invention.

Claims

1. A bearing clamping and positioning mechanism, characterized in that: The invention comprises a base plate (1), a tension spring support (2), a tension spring (3), a tension spring column (4), a front joint (5), a fixing ring (6), two connecting rods (7), three guide rods (8), an intermediate joint (9), a rear joint (10), a pushing plate (11), a plurality of cylindrical pins and a plurality of screws; wherein, the tension spring support (2) is screwed into a first threaded hole (11) on the base plate (1), one end hook of the tension spring (3) is hooked into a groove of the tension spring support (2), and the other end hook of the tension spring (3) is hooked into a groove of the tension spring column (4); there are four through holes on the front joint (5), namely a first front joint through hole (51), a second front joint through hole (52), a third front joint through hole (53) and a fourth front joint through hole (54); wherein the first front joint through hole (51) , the fourth front joint through hole (54) is provided with a thread, and the tension spring column (4) is screwed into the first front joint through hole (51) of the front joint (5); the fixing ring (6) has 6 through holes, namely the first fixing ring through hole (61), the second fixing ring through hole (62), the third fixing ring through hole (63), the fourth fixing ring through hole (64), the fifth fixing ring through hole (65) and the sixth fixing ring through hole (66); wherein, the first fixing ring through hole (61), the second fixing ring through hole (62) and the third fixing ring through hole (63) are provided with threads, and the fixing ring (6) is fixed to the second bottom plate threaded hole (12), the third bottom plate threaded hole (13) and the sixth bottom plate threaded hole (14) of the bottom plate (1) through the first fixing ring through hole (61), the second fixing ring through hole (62), the third fixing ring through hole (63) and the screws. In the plate threaded hole (13) and the fourth bottom plate threaded hole (14), the second front joint through hole (52) of the front joint (5) cooperates with the fourth fixing ring through hole (64) of the fixing ring (6), and the front joint (5) and the fixing ring (6) are connected by a cylindrical pin; the third front joint through hole (53) of the front joint (5) cooperates with the first connecting rod through hole (71) of the connecting rod (7), and the front joint (5) and the connecting rod (7) are connected by a cylindrical pin; the fourth front joint through hole (54) of the front joint (5) cooperates with the boss (81) of the guide rod (8), and the front joint (5) and the guide rod (8) are connected by screws; the intermediate joint (9) has four holes, wherein the first intermediate joint through hole (91), the second intermediate joint through hole (92), and the third intermediate joint through hole (93) are provided. ) is a through hole, the fourth intermediate joint through hole (94) contains a thread, the first intermediate joint through hole (91) of the intermediate joint (9) cooperates with the second connecting rod through hole (72) of the connecting rod (7), and the connecting rod (7) and the intermediate joint (9) are connected by a cylindrical pin; the second intermediate joint through hole (92) of the intermediate joint 9 cooperates with the fifth fixing ring through hole (65) of the fixing ring (6), and the intermediate joint (9) and the fixing ring (6) are connected by a cylindrical pin; the through hole (93) of the intermediate joint (9) cooperates with the through hole (71) of the connecting rod (7), and the intermediate joint (9) and the connecting rod (7) are connected by a cylindrical pin; the threaded hole (94) of the intermediate joint (9) cooperates with the boss (81) of the guide rod (8), and the intermediate joint (9) and the guide rod (8) are connected by a screw;The rear joint (10) has three holes, namely a first rear joint through hole (101), a second rear joint through hole (102) and a third rear joint through hole (103), wherein the first rear joint through hole (101) and the second rear joint through hole (102) are through holes, and the third rear joint through hole (103) contains a thread. The through hole (101) of the rear joint (10) cooperates with the second connecting rod through hole (72) of the connecting rod (7), and the rear joint (10) and the connecting rod (7) are connected by a cylindrical pin; the through hole (102) of the rear joint (10) cooperates with the sixth fixing ring through hole (66) of the fixing ring (6) , the rear joint (10) and the fixing ring (6) are connected by a cylindrical pin; the threaded hole (103) of the rear joint (10) cooperates with the boss (81) of the guide rod (8), and the rear joint (10) and the guide rod (8) are connected by screws; the pushing plate (11) has three oblong through holes, namely the first pushing plate oblong through hole (111), the first pushing plate oblong through hole (112) and the first pushing plate oblong through hole (113); the three guide rods (8) respectively pass through the three oblong through holes of the pushing plate (11), and the pushing plate (11) can slide freely up and down in the vertical direction of the guide rod; During operation, the front joint (5) is moved clockwise and held, the tension spring (3) is opened, and the three guide rods (8) are driven to radially open along the three oblong holes of the push disk (11) by the spring tension and the working principle of the connecting rod mechanism. The bearing is placed above the middle of the three guide rods and placed downward on the push disk (11) along the vertical direction of the guide rods. Then the front joint (5) is released, the tension spring (3) is contracted, and the three guide rods (8) are driven to radially close along the three oblong holes of the push disk (11) by the spring tension and the working principle of the connecting rod mechanism, thereby clamping the bearing. The three guide rods (8) are tangent to the outer circumference of the bearing at three points, and the center of the circle is determined by three points to achieve the positioning of the bearing.

2. A bearing clamping and positioning mechanism according to claim 1, characterized in that: The guide rod (8) moves at equal distances in the three oblong apertures.

3. A bearing clamping and positioning mechanism according to claim 1, characterized in that: The pushing plate (11) can move horizontally upward or downward.

4. A bearing clamping and positioning mechanism according to claim 1, characterized in that: The connecting rod (7) is a one-third ring.

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