A deep groove ball bearing clamping jig

Abstract

The utility model discloses a kind of deep groove ball bearing clamping jigs, including turntable and jig body, the disc body surface of the turntable is equipped with jig body, further include slow supporting mechanism, the slow supporting mechanism includes pit groove, pit disc pad, hollow rubber ball, rubber pressure disc, hollow chuck matching column and hard arc piece, slow supporting mechanism is set in jig body at the time of groove precision detection to deep groove ball bearing, slow supporting mechanism is in the rubber soft column body of hollow chuck matching column in jig body with hollow rubber ball with pit disc pad in the rubber pressure disc below in jig body is cooperated with pit disc pad and is supported and is connected flexibly by rubber pressure disc, and rubber pressure disc is when being hit by bearing outer ring, buffer is carried out by the elastic structure deformation of pit disc pad and hollow rubber ball, effectively reduce the harm that bearing outer ring is received when falling and clamping in jig body.

Description

Technical Field

[0001] This utility model relates to the field of bearing fixture technology, and in particular to a deep groove ball bearing clamping fixture. Background Technology

[0002] Deep groove ball bearings are one of the most common and widely used types of rolling bearings. They belong to the category of radial bearings. Their core function is to reduce friction between mechanical parts through the rolling of the rolling elements and to support the radial load of the rotating shaft. They can also withstand small bidirectional axial loads. When measuring the groove accuracy of the outer ring of a deep groove ball bearing, a robotic arm is used to clamp the outer ring on the turntable of the groove accuracy testing equipment. The surface of this turntable is usually equipped with a series of clamping fixtures. These fixtures have cylindrical holes to accommodate the bearing outer ring, and there are grooves between the hole wall and the cylindrical body of the fixture for the robotic arm's gripper to enter. This facilitates the robotic arm to clamp the bearing outer ring into the fixture for testing and then automatically remove it.

[0003] In existing deep groove ball bearing fixtures, when used with a robotic arm to clamp the bearing outer ring for groove accuracy testing, a large clearance is usually set in the cylindrical cavity of the fixture to facilitate smooth clamping of the bearing outer ring within the fixture groove. As the robotic arm quickly clamps the bearing outer ring and lowers it into the fixture, the bearing outer ring is prone to local hard contact with the inner cylindrical cavity surface of the fixture, which can easily cause minor damage to the bearing outer ring. To address this, we propose a deep groove ball bearing clamping fixture. Utility Model Content

[0004] The main objective of this invention is to provide a deep groove ball bearing clamping fixture. By incorporating a buffer mechanism within the fixture body for groove accuracy testing of deep groove ball bearings, the buffer mechanism guides the outer ring of the bearing smoothly into the fixture body using a hollow chuck and a flexible rubber cylinder. This allows the outer ring to be flexibly supported by a rubber pressure plate, effectively preventing direct contact and frictional damage to the metal material during groove accuracy testing. Furthermore, a recessed pad with a hollow rubber ball supports the rubber pressure plate within the fixture body below it. This allows the rubber pressure plate to transmit impact downwards when struck by the bearing outer ring, and the elastic deformation of the recessed pad and hollow rubber ball provides cushioning, effectively reducing damage to the outer ring during clamping and falling within the fixture body. This effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A deep groove ball bearing clamping fixture includes a turntable and a fixture body. The fixture body is mounted on the surface of the turntable. It also includes a buffer mechanism, which comprises a groove, a grooved pad, a hollow rubber ball, a rubber pressure plate, a hollow chuck post, and a hardened arc plate. A groove for clamping the grooved pad is recessed at the bottom of the central groove of the fixture body. A rubber pressure plate is clamped between the grooved pad and the bottom of the central groove of the fixture body. A recessed annular groove is formed on the surface of the grooved pad below the rubber pressure plate, and the annular groove is filled with a hollow rubber ball. A hollow chuck post is integrally formed on the edge of the rubber pressure plate. A chuck groove for clamping the hollow chuck post is formed on the vertical wall of the groove cavity of the fixture body.

[0007] Furthermore, a hard arc sheet is bonded to the outer side of the tail end of the hollow chuck fitting post, and the hard arc sheet is inserted between the hollow chuck fitting post and the chuck groove.

[0008] By adopting the above technical solution, after the hollow chuck is supported by the hard arc plate, it is convenient to use the hard arc plate to snap into the groove of the chuck for clamping.

[0009] Furthermore, the hollow chuck assembly column, which is away from its own tail head, is embedded in the groove cavity of the fixture body, and six sets of hollow chuck assembly columns are ring-distributed and clamped in the fixture body, and hollow cavities are provided in the column of the hollow chuck assembly column.

[0010] By adopting the above technical solution, the hollow chuck can make soft contact with the outer ring of the bearing after the column is embedded in the fixture body for contact buffering.

[0011] Furthermore, a T-shaped perforation is provided at the center of the rubber pressure plate, and an internal hexagonal bolt is screwed into the fixture body through a perforation on the surface of the pit plate pad in the cavity of the T-shaped perforation, with the head of the internal hexagonal bolt embedded in the large cavity of the T-shaped perforation.

[0012] By adopting the above technical solution, the bolt body of the internal hexagonal bolt can pass through the T-shaped perforation of the rubber pressure plate and the perforation of the pit plate pad and be screwed into the fixture body, preventing the rubber pressure plate from detaching upwards, and the head of the internal hexagonal bolt can be hidden in the T-shaped perforation and not contact the groove precision detection structure extending into the outer ring of the bearing.

[0013] Furthermore, the annular grooves are provided in four sets with a tapering arrangement on the surface of the pit pad, and the four sets of grooves are filled with hollow rubber balls.

[0014] By adopting the above technical solution, the pit pad is filled with hollow rubber balls in combination with a number of ring grooves, thereby providing effective stress deformation buffer under the rubber pressure plate.

[0015] Furthermore, the diameter of the hollow rubber ball is the same as the depth of the groove in the annular groove;

[0016] By adopting the above technical solution, the hollow rubber ball can be smoothly filled into the ring groove to support the rubber pressure plate, and after the rubber pressure plate is deformed downward under force, it provides contact cushioning with its own deformation buffering effect.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention provides a buffer mechanism in the fixture body for testing the groove accuracy of deep groove ball bearings. The buffer mechanism guides the outer ring of the bearing to fall smoothly into the fixture body with a hollow chuck and a rubber soft cylinder. The outer ring is flexibly supported by a rubber pressure plate, which effectively avoids the outer ring of the bearing from falling directly into the fixture body and making hard contact with the metal material, thus reducing the damage to the outer ring of the bearing during groove accuracy testing.

[0019] Furthermore, the fixture body below the rubber pressure plate uses a pitted pad and a hollow rubber ball to support the rubber pressure plate. This allows the rubber pressure plate to transmit the impact force downwards when it is hit by the outer ring of the bearing. The elastic deformation of the pitted pad and the hollow rubber ball provides cushioning, effectively reducing the damage to the outer ring of the bearing when it falls and is clamped within the fixture body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a deep groove ball bearing clamping fixture according to the present invention.

[0021] Figure 2 This is an exploded view of the slow-release mechanism of a deep groove ball bearing clamping fixture according to this utility model.

[0022] Figure 3 This is a schematic diagram showing the disassembly of the hard arc plate and hollow chuck of the deep groove ball bearing clamping fixture of this utility model.

[0023] In the diagram: 1. Turntable; 2. Fixture body; 3. Easing mechanism; 4. Slot; 5. Slot pad; 6. Dividing ring groove; 7. Hollow rubber ball; 8. Rubber pressure plate; 9. T-shaped perforation; 10. Hex socket head cap screw; 11. Hollow chuck with matching column; 12. Hard arc plate; 13. Chuck groove. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-3As shown, a deep groove ball bearing clamping fixture includes a turntable 1 and a fixture body 2. The fixture body 2 is mounted on the surface of the turntable 1. It also includes a buffer mechanism 3. The buffer mechanism 3 includes a groove 4, a groove pad 5, a hollow rubber ball 7, a rubber pressure plate 8, a hollow chuck pin 11, and a hard arc plate 12. The bottom of the central groove of the fixture body 2 is recessed and locked with a groove 4 for clamping the groove pad 5. The rubber pressure plate 8 is clamped between the groove pad 5 and the bottom of the central groove of the fixture body 2. The surface of the groove pad 5 below the rubber pressure plate 8 is recessed with a ring groove 6, and the ring groove 6 is filled with a hollow rubber ball 7. The edge of the rubber pressure plate 8 is integrally formed with a hollow chuck pin 11. The vertical wall of the groove cavity of the fixture body 2 is provided with a chuck groove 13 for clamping the hollow chuck pin 11.

[0026] Among them, a hard arc piece 12 is bonded to the outer side of the tail head of the hollow chuck mounting post 11, and the hard arc piece 12 is inserted between the hollow chuck mounting post 11 and the chuck groove 13.

[0027] By adopting the above technical solution, after the hollow chuck 11 obtains rigid support with the hard arc plate 12, it is convenient to use the hard arc plate 12 to snap into the groove cavity of the chuck groove 13 for clamping.

[0028] The hollow chuck column 11, which is far from its own tail head, is embedded in the groove cavity of the fixture body 2, and six sets of hollow chuck columns 11 are ring-distributed in the fixture body 2. The hollow chuck column 11 has a hollow cavity inside its column.

[0029] By adopting the above technical solution, the hollow chuck column 11 can make soft contact with the outer ring of the bearing for contact buffering after being embedded in the fixture body 2.

[0030] Among them, a T-shaped through hole 9 is provided at the center of the rubber pressure plate 8, and an internal hexagon bolt 10 is screwed into the fixture body 2 through the through hole opened on the surface of the pit plate pad 5 in the cavity of the T-shaped through hole 9. The head of the internal hexagon bolt 10 is embedded in the large cavity of the T-shaped through hole 9.

[0031] By adopting the above technical solution, the bolt body of the internal hex bolt 10 can pass through the T-shaped through hole 9 of the rubber pressure plate 8 and the through hole of the pit pad 5 and be screwed into the fixture body 2, preventing the rubber pressure plate 8 from detaching upwards, and the head of the internal hex bolt 10 can be hidden in the T-shaped through hole 9 and not contact the groove precision detection structure extending into the outer ring of the bearing.

[0032] Among them, the dividing annular groove 6 is provided in four sets in a tapered manner on the surface of the pit pad 5, and the four sets of groove cavities of the dividing annular groove 6 are filled with hollow rubber balls 7.

[0033] By adopting the above technical solution, the pit pad 5 uses a number of annular grooves 6 to fill hollow rubber balls 7, thereby providing effective stress deformation buffering under the rubber pressure plate 8.

[0034] Wherein, the diameter of the hollow rubber ball 7 is the same as the depth of the groove cavity of the annular groove 6;

[0035] By adopting the above technical solution, the hollow rubber ball 7 can be smoothly filled into the ring groove 6 to support the rubber pressure plate 8, and after the rubber pressure plate 8 is deformed downward under force, it provides contact buffering with its own deformation buffering effect.

[0036] It should be noted that this utility model is a deep groove ball bearing clamping fixture. By setting a buffer mechanism 3 at the fixture body 2 when performing groove accuracy testing on the deep groove ball bearing, the pit pad 5 of the buffer mechanism 3 can be inserted and installed in the pit 4 of the fixture body 2. Then, hollow rubber balls 7 are filled in the annular groove 6 of the pit pad 5. Next, the hollow chuck column 11 of the rubber pressure plate 8 cooperates with the hard arc plate 12 to guide and clamp down at the chuck groove 13 in the fixture body 1 until the rubber pressure plate 8 presses on the surface of the pit pad 5 and the hollow rubber balls 7. At this time, the bolt of the internal hexagon bolt 10 can pass through the T-shaped through hole 9 of the rubber pressure plate 8 and the through hole of the pit pad 5 and screw into the fixture body 2 to prevent the rubber pressure plate 8 from falling off upward. The head of the internal hexagon bolt 10 can be hidden in the T-shaped through hole 9 and not contact the groove accuracy testing structure that extends into the outer ring of the bearing.

[0037] When the groove accuracy of the bearing outer ring needs to be detected at the fixture body 2 on the surface of the turntable 1, the robot arm clamps the outer ring of the bearing and clamps the outer ring between the hollow chuck matching column 11 above the fixture body 2 and then releases it. At this time, the outer ring of the bearing descends along the soft column wall of the hollow chuck matching column 11 to the surface of the rubber pressure plate 8. At this time, the rubber pressure plate 8 deforms downward under force, and then the hollow rubber ball 7 in the pit pad 5 contacts the rubber pressure plate 8 to provide flexible contact and deform under force, thereby cooperating with the rubber pressure plate 8 to buffer the falling impact force on the outer ring of the bearing. Then the groove accuracy detection structure can be inserted into the outer ring of the bearing for groove detection and then leave. Afterwards, the robot arm can normally clamp the outer ring of the bearing from the groove matching point of the fixture body 1 and send it to the inner and outer ring matching equipment for subsequent matching and assembly.

[0038] When the rubber pressure plate 8 is found to be aging during regular inspection and maintenance by technicians, the internal hex bolts 10 can be removed to take out the rubber pressure plate 8, the pit gasket 5, and the hollow rubber ball 7 for disassembly, replacement, and maintenance.

[0039] It should be noted that this utility model is a deep groove ball bearing clamping fixture. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A deep groove ball bearing clamping fixture, comprising a turntable (1) and a fixture body (2), wherein the fixture body (2) is mounted on the surface of the turntable (1), characterized in that: It also includes a buffer mechanism (3), which includes a groove (4), a groove pad (5), a hollow rubber ball (7), a rubber pressure plate (8), a hollow chuck column (11), and a hard arc plate (12). The bottom of the central groove of the fixture body (2) is recessed and locked with a groove (4) for mounting the groove pad (5), and a rubber pressure plate (8) is mounted between the groove pad (5) and the bottom of the central groove of the fixture body (2). The surface of the groove pad (5) below the rubber pressure plate (8) is recessed and has a ring groove (6), and the ring groove (6) is filled with a hollow rubber ball (7). The edge of the rubber pressure plate (8) is integrally formed with a hollow chuck column (11), and the vertical wall of the groove cavity of the fixture body (2) has a chuck groove (13) for mounting the hollow chuck column (11).

2. The deep groove ball bearing clamping fixture according to claim 1, characterized in that: A hard arc plate (12) is bonded to the outer side of the tail head of the hollow chuck post (11), and the hard arc plate (12) is inserted between the hollow chuck post (11) and the chuck groove (13).

3. The deep groove ball bearing clamping fixture according to claim 1, characterized in that: The hollow chuck column (11) is embedded in the groove of the fixture body (2) with the column away from its own tail head. The hollow chuck column (11) is installed in six sets in a ring-shaped distribution in the fixture body (2). The hollow chuck column (11) has a hollow cavity in its column.

4. The deep groove ball bearing clamping fixture according to claim 1, characterized in that: The rubber pressure plate (8) has a T-shaped perforation (9) at the center of the plate body, and an internal hexagonal bolt (10) is screwed into the fixture body (2) through the perforation on the surface of the pit plate pad (5) in the cavity of the T-shaped perforation (9). The head of the internal hexagonal bolt (10) is embedded in the large cavity of the T-shaped perforation (9).

5. A deep groove ball bearing clamping fixture according to claim 1, characterized in that: The annular groove (6) is provided in four sets with a tapering arrangement on the surface of the pit pad (5), and the four sets of grooves (6) are filled with hollow rubber balls (7).

6. The deep groove ball bearing clamping fixture according to claim 1, characterized in that: The diameter of the hollow rubber ball (7) is the same as the depth of the groove (6).

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