Clamp for cutting inner ring of crossed roller bearing with inner ring segmentation structure

Abstract

The utility model discloses a clamp for cutting an inner ring of a crossed roller bearing with an inner ring segmentation structure. The clamp comprises a base and two annular brackets, the two annular supports are symmetrically arranged up and down, the base is connected with the annular support below through the second supporting legs, a supporting table used for supporting a workpiece is arranged on the upper surface of the base, the annular supports are slidably connected with at least two sliding blocks, and pyramids are arranged in the two annular supports. One end of each sliding block is tightly attached to the outer surface of the pyramid, and the other end of each sliding block penetrates through the annular support to be connected with an arc-shaped supporting plate. According to the clamp for cutting the inner ring of the crossed roller bearing with the inner ring division structure, the upper part and the lower part of an inner ring workpiece to be cut can be quickly and efficiently fixed respectively, clamping is firm, and the inner ring workpiece is not prone to deformation in the cutting process; the sliding blocks extend to synchronously push out the arc-shaped supporting plates on the two annular supports, the arc-shaped supporting plates are used for fixing the inner ring of the workpiece to be cut, and the arc-shaped supporting plates can be detached.

Description

Technical Field

[0001] The present application relates to the technical field of inner ring processing of crossed roller bearings, and in particular to a clamp for cutting the inner ring of a crossed roller bearing with an inner ring segmentation structure. Background Art

[0002] Crossed roller bearings have a structure where the inner ring is divided into two identical half inner rings. After the rollers and spacers are installed, they are fixed together with the crossed roller shaft ring to prevent them from separating from each other. The two identical inner rings are processed as two separate parts during the processing. That is, they are two separate parts from the material feeding to the matching sleeve assembly, and are combined into a complete inner ring when the bearing is assembled.

[0003] Crossed roller bearings have a compact structure and limited installation space, and many of them are thin-walled structures. If the single inner ring processing method is still used, the deformation during the processing is large and the product accuracy is not easy to guarantee. Therefore, it is necessary to improve the inner ring processing method. Therefore, the two half inner rings of the same set of bearings are mostly processed in an integrated manner. After the parts are processed to be qualified, they are divided into two half inner rings for bearing assembly. The cutting of the two half inner rings is mostly done by wire cutting. The diameter of the wire cutting molybdenum wire is 0.2mm. The inner ring workpiece needs to be fixed during the wire cutting process. The existing inner ring workpiece positioning clamp needs to manually clamp the upper and lower parts of the inner ring workpiece in steps. The clamping efficiency is low, resulting in low cutting efficiency of the inner ring workpiece; at the same time, the fixation of the inner ring workpiece is not reliable enough, which makes it easy to deform during the cutting process. Summary of the invention

[0004] The present application provides a clamp for cutting the inner ring of a cross roller bearing with an inner ring split structure, which can quickly and efficiently fix the upper and lower parts of the inner ring workpiece to be cut respectively, and the clamping is secure. The inner ring workpiece is not easy to deform during the cutting process, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a clamp for cutting the inner ring of a cross roller bearing with an inner ring split structure, comprising a base and two annular brackets; the two annular brackets are symmetrically arranged up and down, the base is connected to the annular bracket below through a second support leg, the upper surface of the base is provided with a support platform for supporting the workpiece, and no less than two sliders are slidably connected to the annular bracket, and a pyramid is provided inside the two annular brackets, one end of the slider is arranged close to the outer surface of the pyramid, and the other end of the slider passes through the annular bracket and is connected to an arc-shaped support plate.

[0006] The lower pyramid is connected to the upper surface of the base through the electric-controlled telescopic rod three, the upper pyramid is connected to the positioning plate through the electric-controlled telescopic rod two, the positioning plate is connected to the upper annular bracket through the supporting leg three, the positioning plate is connected to the lifting plate through the connecting rod, the lifting plate is connected to the rotating table through the electric-controlled telescopic rod one, the rotating table is installed on the supporting column, the rotating table is rotatably connected to the supporting column, and the supporting column is installed on the base.

[0007] Preferably, the support platform is an annular support plate, the annular bracket is arranged inside the annular support plate, and the annular support plate is fixed on the base through a supporting leg.

[0008] Preferably, the annular support plate is composed of two semicircular support plates, and the two semicircular support plates are fixed to the support leg one by bolts.

[0009] Preferably, at least two annular arrays of sliders are distributed on the annular bracket.

[0010] Preferably, a slide groove is provided inside the annular bracket, a slider is arranged through the slide groove, a spring is sleeved on the outer side of the slider, one end of the spring is fixed to the outer side of the slider, and the other end of the spring is fixed inside the slide groove.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] 1. The inner ring cutting fixture of the cross roller bearing with inner ring split structure can quickly and efficiently fix the upper and lower parts of the inner ring workpiece to be cut, and the clamping is reliable, and the inner ring workpiece is not easy to deform during the cutting process;

[0013] 2. The slider extends to push out the arc-shaped support plates on the two annular brackets synchronously, and the arc-shaped support plates fix the inner circle of the workpiece to be cut. The arc-shaped support plates can be disassembled and are customized according to the inner circle size of the workpiece to be processed, so that the arc-shaped support plates can be closely attached to the inner surface of the workpiece to be processed when working, which can effectively prevent the workpiece to be processed from being deformed during the cutting process;

[0014] 3. The electric telescopic rod can drive the pyramid to move up and down by telescoping. When the pyramid moves, multiple slides can be pushed out synchronously, so that the arc-shaped support plates installed at the ends of the slides can move synchronously, and the workpiece to be processed can be straightened at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is the main view of this application;

[0017] Figure 3 It is a structural schematic diagram of the ring bracket.

[0018] In the figure: 1 arc-shaped support plate, 2 annular bracket, 3 pyramid, 4 positioning plate, 5 connecting rod, 6 lifting plate, 7 electric telescopic rod 1, 8 rotating table, 9 support column, 10 baffle 1, 11 baffle 2, 12 base, 13 support table, 14 support leg 1, 15 electric telescopic rod 2, 16 electric telescopic rod 3, 17 support leg 2, 18 support leg 3, 19 spring, 20 slide groove, 21 slider. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In the description of this application, if the orientation description is involved, for example, the orientation or position relationship indicated by "upper", "lower", "front", "back", "left", "right", etc. is based on the attached Figure 2 The orientation or position relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present application. When a feature is referred to as being "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0021] See also Figure 1-3 The present application provides the following technical solutions: a clamp for cutting the inner ring of a cross roller bearing with an inner ring segmentation structure, comprising a base 12 and two annular brackets 2; the two annular brackets 2 are symmetrically arranged up and down, the base 12 is connected to the annular bracket 2 below through a supporting leg 17, and a support table 13 for supporting a workpiece is provided on the upper surface of the base 12, and at least two sliders 21 are slidably connected to the annular bracket 2, and a pyramid 3 is provided inside the two annular brackets 2, one end of the slider 21 is arranged close to the outer surface of the pyramid 3, and the other end of the slider 21 passes through the annular bracket 2 and is connected to an arc-shaped support plate 1.

[0022] Specifically, the slider 21 is extended to simultaneously push out the arc-shaped support plates 1 on the two annular brackets 2, and the inner ring of the workpiece to be cut is fixed by the arc-shaped support plates 1. The arc-shaped support plates 1 can be disassembled. The arc-shaped support plates 1 are customized according to the size of the inner ring of the workpiece to be processed, so that the arc-shaped support plates 1 can be tightly attached to the inner surface of the workpiece to be processed when working, which can effectively prevent the workpiece to be processed from being deformed during the cutting process.

[0023] The lower pyramid 3 is connected to the upper surface of the base 12 through the electric telescopic rod three 16, the upper pyramid 3 is connected to the positioning plate 4 through the electric telescopic rod two 15, the positioning plate 4 is connected to the upper annular bracket 2 through the supporting leg three 18, the positioning plate 4 is connected to the lifting plate 6 through the connecting rod 5, the lifting plate 6 is connected to the rotating table 8 through the electric telescopic rod one 7, the rotating table 8 is installed on the support column 9, the rotating table 8 is rotatably connected to the support column 9, and the support column 9 is installed on the base 12.

[0024] Specifically, the electric telescopic rod can drive the pyramid 3 to move up and down by telescoping. When the pyramid 3 moves, multiple sliders 21 can be pushed out synchronously, so that the arc-shaped support plate 1 installed at the end of the slider 21 can move synchronously, and the workpiece to be processed can be automatically straightened.

[0025] Furthermore, the support platform 13 is an annular support plate, the annular bracket 2 is arranged inside the annular support plate, and the annular support plate is fixed on the base 12 through a support leg 14.

[0026] Specifically, the support table 13 is used to support the workpiece to be cut.

[0027] Furthermore, the annular support plate is composed of two semicircular support plates, and the two semicircular support plates are fixed to the support leg 14 by bolts.

[0028] Specifically, the support platform 13 can be selected in different models according to the needs.

[0029] Furthermore, at least two sliders 21 are distributed on the annular bracket 2 in an annular array.

[0030] Specifically, the number of the sliders 21 is four, and the four sliders 21 are evenly distributed on the annular bracket 2 in an annular shape.

[0031] Furthermore, a slide groove 20 is provided inside the annular bracket 2, and a slider 21 is arranged through the slide groove 20. A spring 19 is sleeved on the outer side of the slider 21. One end of the spring 19 is fixed to the outer side of the slider 21, and the other end of the spring 19 is fixed inside the slide groove 20.

[0032] Specifically, when the pyramid 3 pushes the slider 21, the spring 19 is compressed. When the pyramid 3 is removed, the spring 19 pushes the slider 21 to automatically return to its original position. At this time, the workpiece can be quickly removed.

[0033] More specifically, a baffle plate 2 11 is installed on the upper surface of the support platform 13, and a baffle plate 10 is installed on the outer side surface of the rotating platform 8. When the baffle plate 10 contacts the baffle plate 2 11, the upper annular bracket 2 can just rotate into place.

[0034] When in use: the inner ring of the bearing to be cut is sleeved on the lower annular bracket 2 and placed on the upper surface of the support table 13 , and then the upper annular bracket 2 is rotated to just above the lower annular bracket 2 by rotating the rotating table 8 .

[0035] The electric telescopic rod 1 7 contracts to send the upper annular bracket 2 into the inner ring of the bearing, and then the electric telescopic rod 2 15 and the electric telescopic rod 3 16 extend synchronously, and the electric telescopic rod pushes the pyramid 3 to move toward the middle of the inner ring of the bearing. The pyramid 3 pushes out the slider 21, and the slider 21 opens the arc support plate 1. The arc support plate 1 supports the inner wall of the inner ring of the bearing. At this time, the inner ring of the bearing can be cut.

[0036] After the cutting is completed, the electrically controlled telescopic rod is retracted to pull out the pyramid 3, and then the arc-shaped support plate 1 is pushed away by the spring 19, and the upper annular bracket 2 is removed to quickly remove the cut inner ring of the bearing.

[0037] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A clamp for cutting the inner ring of a cross roller bearing with an inner ring split structure, characterized in that: The invention comprises a base (12) and two annular brackets (2); the two annular brackets (2) are symmetrically arranged in an upper and lower direction; the base (12) is connected to the annular bracket (2) below via a second supporting leg (17); a support table (13) for supporting a workpiece is provided on the upper surface of the base (12); at least two slide blocks (21) are slidably connected to the annular bracket (2); a pyramid (3) is provided inside each of the two annular brackets (2); one end of the slide block (21) is arranged in close contact with the outer surface of the pyramid (3); and the other end of the slide block (21) passes through the annular bracket (2) and is connected to an arc-shaped support plate (1); The lower pyramid (3) is connected to the upper surface of the base (12) through the electric-controlled telescopic rod three (16), the upper pyramid (3) is connected to the positioning plate (4) through the electric-controlled telescopic rod two (15), the positioning plate (4) is connected to the upper annular bracket (2) through the supporting leg three (18), the positioning plate (4) is connected to the lifting plate (6) through the connecting rod (5), the lifting plate (6) is connected to the rotating platform (8) through the electric-controlled telescopic rod one (7), the rotating platform (8) is installed on the supporting column (9), the rotating platform (8) is rotatably connected to the supporting column (9), and the supporting column (9) is installed on the base (12).

2. The inner ring cutting fixture of a cross roller bearing with an inner ring split structure according to claim 1, characterized in that: The support platform (13) is an annular support plate, the annular bracket (2) is arranged inside the annular support plate, and the annular support plate is fixed to the base (12) via a supporting leg (14).

3. The inner ring cutting fixture of a cross roller bearing with an inner ring segmentation structure according to claim 2, characterized in that: The annular support plate is composed of two semicircular support plates, and the two semicircular support plates are fixed to the support leg one (14) by bolts.

4. The inner ring cutting fixture of a cross roller bearing with an inner ring segmentation structure according to claim 1, characterized in that: No less than two sliders (21) are distributed in an annular array on the annular support (2).

5. The inner ring cutting fixture of a cross roller bearing with an inner ring segmentation structure according to claim 1, characterized in that: A slide groove (20) is provided inside the annular bracket (2), a slider (21) is arranged through the slide groove (20), a spring (19) is sleeved on the outer side surface of the slider (21), one end of the spring (19) is fixed to the outer side surface of the slider (21), and the other end of the spring (19) is fixed inside the slide groove (20).

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