Automatic clamping jaw for oilless bearing

Abstract

The utility model belongs to the technical field of machining, and particularly relates to an automatic oilless bearing clamping jaw which comprises a connecting shaft. The end part of the connecting shaft is connected with a connecting seat; the side wall of the connecting seat is connected with a plurality of mechanical claws; a plurality of connecting plates are fixedly connected to the side wall of the connecting seat; the connecting plate and the mechanical claw are arranged in an aligned mode. The middle part of the connecting plate is rotationally connected with a screw rod; the side wall of the mechanical claw is coated with a protective sleeve; a fixing groove is formed in the side wall of the mechanical claw. A plurality of spring rods are fixedly connected to the inner side wall of the fixing groove; the end part of the spring rod is fixedly connected with a fixed plate; and in the step, the screw rod is arranged to abut against the inner side of the mechanical claw so as to adjust the moving distance and the grabbing force of the mechanical claw to limit the mechanical claw, the situation that the bearing is deformed when the grabbing force of the mechanical claw is large is reduced, and the bearing grabbing stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to an oil-free bearing automatic clamp. Background Art

[0002] Oil-free bearings are a new type of lubricated bearings that have the characteristics of metal bearings and oil-free lubricated bearings. They have the characteristics of high load-bearing capacity, impact resistance, and self-lubrication. Therefore, they are widely used in machine tool spindles, feed devices, turntables and other components.

[0003] The processing of oil-free bearings is a series of tedious processes. In the modern production process, when the bearings are transferred during the process, a grasping tool such as a mechanical claw is usually used to grab the bearings to be processed to the processing position. During long-term use and observation, it was found that the metal wall of the existing oil-free bearings is thin, and there is a problem that the grasping force of the mechanical claw is heavy, resulting in deformation of the bearings.

[0004] To this end, the utility model provides an oil-free bearing automatic clamp. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, an oil-free bearing automated clamp is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an oil-free bearing automatic clamp, comprising a connecting shaft; the end of the connecting shaft is connected to a connecting seat; the side wall of the connecting seat is connected to a plurality of mechanical claws; the side wall of the connecting seat is fixedly connected to a plurality of connecting plates; the connecting plate and the mechanical claw are arranged to be aligned; the middle part of the connecting plate is rotatably connected to a screw rod; the side wall of the mechanical claw is covered with a protective sleeve; this step can support the inner side of the mechanical claw by setting a screw rod to adjust the moving distance and gripping force of the mechanical claw to limit it, so as to reduce the deformation of the bearing caused by a large gripping force of the mechanical claw, so as to improve the stability of the bearing gripping.

[0007] Preferably, a fixing groove is formed on the side wall of the mechanical claw; a plurality of spring rods are fixedly connected to the inner side wall of the fixing groove; a fixing plate is fixedly connected to the end of the spring rod; in this step, by arranging the spring rods to connect the fixing plates, a rebound can be generated on the bearing surface when the mechanical claw grabs the bearing, so as to improve the stability of the bearing position.

[0008] Preferably, the side wall of the mechanical claw is hinged with a pressure plate; a sliding groove is provided at the end of the mechanical claw; a sliding rod is fixedly connected to the top of the side wall of the sliding groove; a sliding sleeve is slidably connected to the middle of the sliding rod; a telescopic rod is hinged to the side wall of the mechanical claw away from the pressure plate; a baffle is hinged at the end of the telescopic rod; the pressure plate and the telescopic rod are hinged to the sliding sleeve respectively; this step arranges a pressure plate to connect the sliding sleeve with the telescopic rod and the baffle, so that the baffle can support the bearing from the bottom when grabbing the bearing, so as to reduce the situation where the bearing falls off from the bottom of the mechanical claw during the movement after grabbing, so as to improve the stability of the bearing when grabbing and moving.

[0009] Preferably, a plurality of suction cups are fixedly connected to the side wall of the fixed plate; the plurality of suction cups are evenly distributed on the surface of the fixed plate; in this step, the suction cups are connected to the fixed plate, and when the suction cups are adsorbed on the bearing surface, the tightness of the connection between the bearing and the fixed plate can be improved, thereby improving the fixing effect of the fixed plate on the bearing.

[0010] Preferably, a pair of elastic bands are fixedly connected to the side walls of the protective sleeve; the pair of elastic bands are arranged alternately; in this step, by arranging the elastic bands to connect the mechanical claws, the mechanical claws can clamp the bearings from the top when grabbing the bearings, so as to reduce the bearings sliding upwards from between the mechanical claws during grabbing, thereby improving the stability of the bearing position.

[0011] Preferably, a rubber plate is fixedly connected to the end of the screw; the rubber plate is arranged close to one side of the protective sleeve; this step reduces the wear between the screw and the protective sleeve when the screw limits the mechanical claw, thereby playing a protective role.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The oil-free bearing automatic clamp described in the utility model can support the inner side of the mechanical claw by setting a screw rod to adjust the moving distance and grasping force of the mechanical claw to limit it, so as to reduce the deformation of the bearing caused by the large grasping force of the mechanical claw, so as to improve the stability of the bearing grasping.

[0014] 2. The oil-free bearing automatic clamp described in the utility model can generate a rebound effect on the bearing surface when the mechanical clamp grabs the bearing by setting a spring rod to connect the fixed plate, so as to improve the stability of the bearing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a stereogram in the utility model;

[0017] Figure 2 It is a schematic diagram of the mechanical claw structure in the utility model;

[0018] Figure 3 It is a schematic diagram of the baffle structure in the utility model;

[0019] Figure 4 It is a schematic diagram of the screw structure in the utility model;

[0020] Legend:

[0021] 1. Connecting shaft; 11. Connecting seat; 12. Mechanical claw; 13. Connecting plate; 14. Screw; 15. Protective cover; 2. Fixing groove; 21. Spring rod; 22. Fixing plate; 3. Pressing plate; 31. Slide groove; 32. Slide rod; 33. Slide sleeve; 34. Telescopic rod; 35. Baffle; 4. Suction cup; 5. Elastic band; 6. Rubber sheet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] like Figures 1 to 4 As shown, an oil-free bearing automatic clamp described in an embodiment of the utility model includes a connecting shaft 1; a connecting seat 11 is connected to the end of the connecting shaft 1; a plurality of mechanical claws 12 are connected to the side wall of the connecting seat 11; a plurality of connecting plates 13 are fixedly connected to the side wall of the connecting seat 11; the connecting plate 13 and the mechanical claw 12 are aligned; a screw 14 is rotatably connected to the middle of the connecting plate 13; the side wall of the mechanical claw 12 is covered with a protective sleeve 15; during operation, when grasping the oil-free bearing, the screw 14 is rotated toward the side of the protective sleeve 15 according to the bearings of different sizes so that the end of the screw 14 contacts the protective sleeve 15, at this time, the moving distance and gripping force of the mechanical claw 12 can be adjusted, and then the bearing can be grasped to the processing position by a plurality of mechanical claws 12. In this step, the screw 14 can be set to support the inner side of the mechanical claw 12 to adjust the moving distance and gripping force of the mechanical claw 12 to limit it, so as to reduce the deformation of the bearing caused by the large gripping force of the mechanical claw 12, so as to improve the stability of the bearing gripping.

[0025] like Figure 2As shown, a fixing groove 2 is opened on the side wall of the mechanical claw 12; a plurality of spring rods 21 are fixedly connected to the inner side wall of the fixing groove 2; a fixing plate 22 is fixedly connected to the end of the spring rod 21; during operation, when the mechanical claw 12 grabs the bearing, the fixing plate 22 will contact the surface of the bearing, and the bearing will squeeze the fixing plate 22 to shrink the spring rod 21. When the mechanical claw 12 grabs the bearing, the rebound force generated by the spring rod 21 acts on the bearing surface, which can make the position of the bearing more stable. In this step, by setting the spring rod 21 to connect the fixing plate 22, a rebound force can be generated when the mechanical claw 12 grabs the bearing and acts on the bearing surface, so as to improve the stability of the bearing position.

[0026] like Figure 3 As shown, the side wall of the mechanical claw 12 is hinged with a pressure plate 3; a slide groove 31 is opened at the end of the mechanical claw 12; a slide rod 32 is fixedly connected to the top of the side wall of the slide groove 31; a sliding sleeve 33 is slidably connected to the middle of the sliding rod 32; a telescopic rod 34 is hinged on the side wall of the mechanical claw 12 away from the pressure plate 3; a baffle 35 is hinged on the end of the telescopic rod 34; the pressure plate 3 and the telescopic rod 34 are respectively hinged to the sliding sleeve 33; when working, when the mechanical claw 12 grabs the bearing, the surface of the bearing will squeeze the pressure plate 3, and at this time the pressure plate 3 pushes against the surface of the mechanical claw 12 The sliding sleeve 33 can be driven to move upward at the sliding rod 32 at the moment when the sliding sleeve 33 can drive the telescopic rod 34 to approach the surface of the mechanical claw 12. At the same time, when the telescopic rod 34 contracts, it can drive the baffle 35 to move toward the bottom of the bearing to hold the bearing from the bottom. In this step, the pressure plate 3 is set to connect the sliding sleeve 33 with the telescopic rod 34 and the baffle 35. When the bearing is grabbed, the baffle 35 can hold it from the bottom of the bearing to reduce the possibility of the bearing falling off from the bottom of the mechanical claw 12 during the movement after the grabbing, so as to improve the stability of the bearing when it is grabbed and moved.

[0027] like Figure 2 As shown, a plurality of suction cups 4 are fixedly connected to the side wall of the fixing plate 22; the plurality of suction cups 4 are evenly distributed on the surface of the fixing plate 22; during operation, when the fixing plate 22 presses against the surface of the bearing, the suction cups 4 will be adsorbed on the surface of the bearing to make the connection between the bearing and the fixing plate 22 tighter. In this step, the suction cups 4 are arranged to connect the fixing plate 22. When the suction cups 4 are adsorbed on the surface of the bearing, the tightness of the connection between the bearing and the fixing plate 22 can be improved, so as to improve the fixing effect of the fixing plate 22 on the bearing.

[0028] like Figure 1As shown, a pair of elastic bands 5 are fixedly connected to the side wall of the protective cover 15; the pair of elastic bands 5 are staggered; during operation, when the mechanical claw 12 grabs the bearing, the elastic band 5 will shrink at the same time when the mechanical claw 12 contracts, and at this time the elastic band 5 will cover the bearing from the top. In this step, the elastic band 5 is connected to the mechanical claw 12, so that the bearing can be tightened from the top when the mechanical claw 12 grabs the bearing, so as to reduce the bearing sliding upward from between the mechanical claws 12 during grabbing, so as to improve the stability of the bearing position.

[0029] like Figure 4 As shown, a rubber plate 6 is fixedly connected to the end of the screw rod 14; the rubber plate 6 is arranged close to the side of the protective cover 15; during operation, when the screw rod 14 is rotated to limit the mechanical claw 12, the rubber plate 6 located at the end of the screw rod 14 will contact the surface of the protective cover 15. In this step, by arranging the rubber plate 6 to connect the screw rod 14, the wear between the screw rod 14 and the protective cover 15 can be reduced when the screw rod 14 limits the mechanical claw 12, thereby playing a protective role.

[0030] like Figure 1 and Figure 2 As shown, the protective cover 15 is made of rubber. During operation, when the mechanical claw 12 grabs the bearing, the protective cover 15 will contact the surface of the bearing. In this step, by setting the protective cover 15 to be made of rubber, the pressure of the mechanical claw 12 when grabbing the bearing can be reduced, and at the same time, the friction between the bearing and the mechanical claw 12 can be increased to reduce the bearing from falling off and sliding.

[0031] Working principle: When grabbing oil-free bearings, according to the different sizes of bearings, the screw 14 is rotated to the side of the protective sleeve 15 so that the end of the screw 14 contacts the protective sleeve 15. At this time, the moving distance and grasping strength of the mechanical claw 12 can be adjusted, and then multiple mechanical claws 12 can grab the bearings to the processing position. When the mechanical claw 12 grabs the bearing, the fixed plate 22 will contact the surface of the bearing. At this time, the bearing will squeeze the fixed plate 22 to shrink the spring rod 21. When the mechanical claw 12 grabs the bearing, the rebound force generated by the spring rod 21 acts on the surface of the bearing, which can make the position of the bearing more stable. When the mechanical claw 12 grabs the bearing, the surface of the bearing will squeeze the pressure plate 3. At this time, the pressure plate 3 approaches the surface of the mechanical claw 12. The sliding sleeve 33 can be driven to move upward at the sliding rod 32. At this time, the sliding sleeve 33 can drive the telescopic rod 34 to approach the surface of the mechanical claw 12. At the same time, when the telescopic rod 34 contracts, it will drive the baffle 35 to move toward the bottom of the bearing to support the bearing from the bottom. When the fixed plate 22 presses against the surface of the bearing, the suction cup 4 will be adsorbed on the surface of the bearing to make the connection between the bearing and the fixed plate 22 tighter. When the mechanical claw 12 grabs the bearing, the elastic band 5 will shrink at the same time when the mechanical claw 12 contracts. At this time, the elastic band 5 will cover the bearing from the top. When the screw 14 is rotated to limit the mechanical claw 12, the rubber plate 6 at the end of the screw 14 will contact the surface of the protective cover 15. When the mechanical claw 12 grabs the bearing, the protective cover 15 will contact the surface of the bearing.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An oil-free bearing automated clamp, comprising a connecting shaft (1); characterized in that: The end of the connecting shaft (1) is connected to a connecting seat (11); a plurality of mechanical claws (12) are connected to the side wall of the connecting seat (11); a plurality of connecting plates (13) are fixedly connected to the side wall of the connecting seat (11); the connecting plates (13) and the mechanical claws (12) are arranged in alignment; a screw rod (14) is rotatably connected to the middle of the connecting plate (13); and the side wall of the mechanical claw (12) is covered with a protective sleeve (15).

2. The oil-free bearing automatic gripper according to claim 1, characterized in that: A fixing groove (2) is provided on the side wall of the mechanical claw (12); a plurality of spring rods (21) are fixedly connected to the inner side wall of the fixing groove (2); and a fixing plate (22) is fixedly connected to the end of the spring rod (21).

3. The oil-free bearing automatic gripper according to claim 2, characterized in that: The side wall of the mechanical claw (12) is hinged with a pressure plate (3); a sliding groove (31) is provided at the end of the mechanical claw (12); a sliding rod (32) is fixedly connected to the top of the side wall of the sliding groove (31); a sliding sleeve (33) is slidably connected to the middle of the sliding rod (32); a telescopic rod (34) is hinged to a side wall of the mechanical claw (12) away from the pressure plate (3); a baffle (35) is hinged to the end of the telescopic rod (34); the pressure plate (3) and the telescopic rod (34) are respectively hinged to the sliding sleeve (33).

4. The oil-free bearing automatic gripper according to claim 3, characterized in that: A plurality of suction cups (4) are fixedly connected to the side wall of the fixing plate (22); the plurality of suction cups (4) are evenly distributed on the surface of the fixing plate (22).

5. The oil-free bearing automatic gripper according to claim 4, characterized in that: A pair of elastic bands (5) are fixedly connected to the side wall of the protective cover (15); the pair of elastic bands (5) are arranged in a staggered manner.

6. The oil-free bearing automatic gripper according to claim 5, characterized in that: A rubber plate (6) is fixedly connected to the end of the screw rod (14); the rubber plate (6) is arranged close to the side of the protective sleeve (15).

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