CN209207244U - A kind of clamping device for the processing of ceramic bearing ring end face - Google Patents

Abstract

The invention relates to a clamping device for processing the end face of a ceramic bearing ring, which belongs to the technical field of bearing processing. The clamping device for processing the end face of the ceramic bearing ring includes a base, a fixed block is arranged above one end of the base, a guide rail groove is arranged in the middle of the base, a support seat is arranged above the end of the base away from the fixed block, and the fixed block There is a first V-shaped clamping part, the upper part of the sliding block is provided with a second V-shaped clamping part, the first V-shaped clamping part and the second V-shaped clamping part are arranged oppositely, and both sides of the lower part of the sliding block slide with the guide rail groove Connection, the spring mandrel is set in the guide rail groove, one end of the spring mandrel passes through the sliding block and connects with the side of the guide rail groove close to the fixed block, the side of the spring mandrel near the fixed block is covered with a spring, and one end of the push rod passes through The support seat is in contact with the sliding block, and the ejector rod is threadedly connected with the support seat. The clamping device used for processing the end face of the ceramic bearing ring can make the circumferential surface of the workpiece bear uniform force, have good clamping effect, high working efficiency and wide application.

Description

A clamping device for end face processing of ceramic bearing rings

technical field

The utility model relates to the technical field of bearing processing, in particular to a clamping device for processing the end face of a ceramic bearing ring.

Background technique

The core component of a high-speed machine tool is a high-speed electric spindle, and the key component of a high-speed electric spindle is a high-speed precision bearing. The end face of the bearing ring is the reference plane in subsequent processing. The working accuracy, stability and service life of the spindle. The common flat clamping device is not suitable for grinding the end face of the circular non-magnetic ceramic bearing ring. When positioning and clamping, due to the limitation of the structure of the flat clamping device, the contact area is small, resulting in uneven force on the circumferential surface of the workpiece. , and then produce a large clamping deformation, the grinding force received during processing is large, the clamping effect of the workpiece cannot be achieved, and the workpiece will be crushed when overloaded.

Contents of the invention

In order to solve the technical problems such as uneven force on the peripheral surface of the workpiece and poor clamping effect in the prior art, the utility model provides a clamping device for processing the end face of the ceramic bearing ring, so that the peripheral surface of the workpiece The force is uniform, the clamping effect is good, the work efficiency is high, and the application is extensive.

In order to achieve the above object, the technical solution of the utility model is:

A clamping device for processing the end face of a ceramic bearing ring, comprising a base, a fixed block, a sliding block, a push rod, a support seat and a spring mandrel, a fixed block is arranged above one end of the base, and a A guide rail groove, a support base is provided above the end of the base away from the fixed block, the fixed block is provided with a first V-shaped clamping part, the upper part of the sliding block is provided with a second V-shaped clamping part, and the first V-shaped clamping part is provided on the upper part of the sliding block. The V-shaped clamping part and the second V-shaped clamping part are arranged oppositely, and the two sides of the lower part of the sliding block are slidably connected with the guide rail groove. One side of the fixed block is connected, the spring mandrel is sheathed with a spring near the side of the fixed block, one end of the push rod passes through the support seat and contacts the sliding block, and the push rod is threadedly connected with the support seat.

The included angle between the two sides of the first V-shaped clamping portion is 90°, and the included angle between the two sides of the second V-shaped clamping portion is 90°.

The two sides of the first V-shaped clamping part and the two sides of the second V-shaped clamping part have equal lengths.

The fixed block is fixed on the base by two screws and two positioning pins.

The clamping device used for processing the end face of the ceramic bearing ring uses a magnetically conductive material.

The end of the push rod away from the sliding block is provided with a hexagonal head.

The supporting base is fixed on the base by two screws.

The beneficial effects of the utility model:

The utility model is a clamping device for the end face processing of ceramic bearing rings aimed at circular non-magnetic workpieces. The bottom moves back and forth along the guide rail groove, which is convenient for positioning, clamping and dismounting of the workpiece; the ejector rod is connected to the support seat through threads, and the clamping pretightening force can be controlled by a torque wrench; the clamping device used for the end surface processing of ceramic bearing rings adopts The magnetic material can be directly arranged on the magnetic chuck without refitting the machine tool, and the degree of modularization is high; the utility model adopts the first V-shaped clamping part and the second V-shaped clamping part when clamping and positioning the workpiece. The clamping part is clamped, and the angle between the two sides of the first V-shaped clamping part and the second V-shaped clamping part is 90°. According to the mechanical analysis, the equivalent clamping force is evacuated to the outer circumference of the bearing ring On the four points on the surface, the force on the circumferential surface of the workpiece is uniform, the processing effect is good, the work efficiency is high, and the economy is good.

Description of drawings

Fig. 1 is a schematic diagram of assembly of a clamping device for end face processing of ceramic bearing rings provided by the utility model;

Fig. 2 is an assembly schematic diagram of a clamping device used for end face processing of ceramic bearing rings provided by the utility model;

Fig. 3 is a schematic structural view of the base provided by the utility model;

Fig. 4 is the structural representation of the sliding block provided by the utility model;

Fig. 5 is the structural representation of the fixed block provided by the utility model;

Fig. 6 is a schematic structural view of the support seat provided by the utility model;

Fig. 7 is a structural schematic diagram of the push rod provided by the utility model.

in,

1-base, 2-fixed block, 3-sliding block, 4-ejector rod, 5-support seat, 6-workpiece, 7-locating pin, 8-spring mandrel, 9-spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by ", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, so as to Specific orientation configurations and operations, therefore, should not be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "installed", "connected", etc. should be interpreted in a broad sense, such as "connected", which can be a fixed connection, a detachable connection, or an integral connection ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In order to solve the problems existing in the prior art, as shown in Fig. 1 to Fig. 7, the utility model provides a clamping device for end face processing of ceramic bearing rings, including a base 1, a fixed block 2, a sliding block 3, Push rod 4, support seat 5 and spring mandrel 8, fixed block 2 is provided above one end of base 1, guide rail groove is provided in the middle part of base 1, and support seat 5 is provided above the end of base 1 away from fixed block 2 , the fixed block 2 is provided with a first V-shaped clamping portion, the upper part of the sliding block 3 is provided with a second V-shaped clamping portion, and the first V-shaped clamping portion is opposite to the second V-shaped clamping portion Set, the both sides of slide block 3 bottoms are slidably connected with guide rail groove, and described spring mandrel 8 is arranged in the guide rail groove, and one end of spring mandrel 8 passes through slide block 3 and guide rail groove is connected to the side close to fixed block 2, and spring A spring 9 is sheathed on the side of the mandrel 8 close to the fixed block 2 , one end of the push rod 4 passes through the support base 5 and contacts the sliding block 3 , and the push rod 4 is screwed to the support base 5 . In this embodiment, as shown in Figures 1 and 3, one end of the base 1 is closed and the other end is open, and the closed end of the base 1 is provided with a fixing block installation groove. In the fixed block installation groove, as shown in Figures 1 to 4, the sliding block 3 is installed from one end of the opening of the base 1. The lower part of the sliding block 3 is provided with a guide rail corresponding to the guide rail groove, and the sliding block 3 passes through the guide rail along the guide rail groove. relatively sliding. When the fixed block 2 and the sliding block 3 are installed on the base 1, the upper surfaces of the fixed block 2 and the sliding block 3 are located at the same level, and both upper surfaces are lower than the processed surface of the workpiece 6 to ensure that the workpiece 6 is stressed The areas are equal, and the end of the base 1 away from the fixed block 2 is provided with a support base 5 installation groove for installing the support base 5 . One end of the spring mandrel 8 passes through the middle position of the lower part of the sliding block 3, and the spring mandrel 8 is threadedly connected with the rail groove. The first V-shaped clamping part of the fixed block 2 is concave, and the second V-shaped clamping part of the sliding block 3 is also concave. The openings of the first V-shaped clamping part and the second V-shaped clamping part The directions are oppositely arranged, and are used for clamping the workpiece 6 .

The angle between the two sides of the first V-shaped clamping portion is 90°, the angle between the two sides of the second V-shaped clamping portion is 90°, and the two sides of the first V-shaped clamping portion The lengths of the sides and the two sides of the second V-shaped clamping portion are equal. In this implementation, the angle between the two sides of the first V-shaped clamping portion is 90°, the angle between the two sides of the second V-shaped clamping portion is 90°, the first V-shaped clamping portion and the second V-shaped clamping portion The V-shaped tips of the V-shaped clamping part are provided with grooves to ensure that the angles between the two sides of the first V-shaped clamping part and the second V-shaped clamping part are 90°, and the first V-shaped clamping part The lengths of the two sides of the first V-shaped clamping part and the two sides of the second V-shaped clamping part are equal, that is, the lengths of the four sides of the two V-shaped clamping parts are all equal, and the clamping force is equivalent Evacuate to four points on the outer peripheral surface of the workpiece 6, the peripheral surface of the workpiece 6 is evenly stressed, the micro-deformation of the workpiece 6 during clamping can be strictly controlled, and the overall performance of the workpiece 6 is greatly improved.

The fixing block 2 is fixed on the base 1 by two screws and two positioning pins 7, and the support base 5 is fixed on the base 1 by two screws. In this embodiment, as shown in Figures 1, 3, and 5, two bolts and two positioning pins 7 fix the fixed block 2 on one end of the base 1, and the positioning pins 7 can ensure that the first V-shaped clamping part and the second The openings of the V-shaped clamping parts are accurately opposite to each other to improve the precision, and the screws connect the fixing block 2 . As shown in FIGS. 1 and 6 , two screws fix the support base 5 on the other end of the base 1 .

The clamping device used for processing the end face of the ceramic bearing ring uses a magnetically conductive material. In this embodiment, the clamping device used for processing the end face of the ceramic bearing ring adopts a magnetically conductive material so that the clamping device used for processing the end face of the ceramic bearing ring is arranged on the magnetic chuck of the machine tool, milling machine, grinding machine, etc. , milling machine, grinding machine, etc. are modified, and the degree of modularization is high. The clamping device used for the end face processing of ceramic bearing rings has a simple structure, low cost, good economy, and a wide range of applications.

The clamping device for processing the end face of a ceramic bearing ring can be used for clamping a circular non-magnetic workpiece. In this embodiment, the clamping device used for processing the end face of the ceramic bearing ring is used to clamp the ceramic bearing ring.

The end of the push rod 4 away from the sliding block 3 is provided with a hexagonal head. In this embodiment, as shown in Figures 1 and 4, the side of the sliding block 3 away from the fixed block 2 is in contact with the ejector rod 4, and the ejector rod 4 is used to withstand the sliding block 3, and the torque wrench can control the pre-clamping through the hexagonal head. The tightening force is used to load and unload the workpiece 6 by rotating the hexagonal head of the ejector rod 4, which is easy to operate and high in work efficiency. As shown in Figure 2, the lower part of the sliding block 3 is connected to the rail groove of the base 1 through the spring mandrel 8, and the spring 9 is installed on the spring mandrel 8 between the fixed block 2 and the sliding block 3 to support the sliding block 3 And drive the sliding block 3 to move.

The use process of the above-mentioned clamping device for the end face processing of ceramic bearing rings:

When installing the workpiece 6, rotate the hexagonal head of the ejector rod 4 to drive the ejector rod 4 to screw in to push the sliding block 3 to move along the guide rail groove of the base 1 to clamp the workpiece 6; when unloading the workpiece 6, rotate the hexagonal head of the ejector rod 4 , to drive the ejector rod 4 to unscrew, and at the same time, the spring 9 pushes the sliding block 3 to move along the guide rail groove of the base 1, and loosens the workpiece 6 to facilitate the replacement of the workpiece 6.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. A clamping device for processing the end face of a ceramic bearing ring, characterized in that it includes a base, a fixed block, a sliding block, a push rod, a support seat and a spring mandrel, and a fixed block is arranged above one end of the base , the middle part of the base is provided with a guide rail groove, a support seat is provided above the end of the base away from the fixed block, the fixed block is provided with a first V-shaped clamping part, and the upper part of the sliding block is provided with a second V-shaped clamping part , the first V-shaped clamping part and the second V-shaped clamping part are arranged oppositely, both sides of the lower part of the sliding block are slidably connected with the guide rail groove, the spring mandrel is arranged in the guide rail groove, and one end of the spring mandrel passes through The sliding block is connected to the side of the guide rail groove close to the fixed block, the spring mandrel is sleeved with a spring near the side of the fixed block, one end of the push rod passes through the support seat and contacts the slide block, and the push rod is threadedly connected to the support seat . 2. The clamping device for processing the end face of a ceramic bearing ring according to claim 1, wherein the angle between the two sides of the first V-shaped clamping part is 90°, and the angle between the two sides of the second V-shaped clamping part is 90°. The included angle between the two sides of the clamping part is 90°. 3. The clamping device for processing the end face of a ceramic bearing ring according to claim 1, wherein the two sides of the first V-shaped clamping portion and the two sides of the second V-shaped clamping portion The sides are all equal in length. 4. The clamping device for processing the end face of a ceramic bearing ring according to claim 1, wherein the fixing block is fixed on the base by two screws and two positioning pins. 5. The clamping device for processing the end face of ceramic bearing rings according to claim 1, characterized in that the clamping device for processing the end faces of ceramic bearing rings uses magnetically conductive materials. 6 . The clamping device for processing the end face of ceramic bearing rings according to claim 1 , wherein a hexagonal head is provided at the end of the push rod away from the sliding block. 7 . 7. The clamping device for processing the end face of a ceramic bearing ring according to claim 1, wherein the support seat is fixed on the base by two screws.