Adjustable bearing inner ring drilling positioning clamp

Abstract

The utility model discloses an adjustable bearing inner ring drilling positioning clamp which comprises a mounting base, a sliding frame is connected to the inner top of the mounting base in a sliding mode, a rotating disc is rotationally connected to the bottom of the sliding frame, a plurality of supporting columns are connected to the interior of the sliding frame in a sliding mode, and a pressing air cylinder is rotationally connected to the bottom of the rotating disc. An adjusting mechanism is installed on the end face of a driving rod of the pressing air cylinder. By arranging the three-jaw inner supporting structure, a placed bearing inner ring can be supported and fixed from inside to outside, so that clamping and fixing of the bearing inner ring can be improved, meanwhile, a pressing block is arranged at the top of the inner supporting structure, the bearing inner ring after being supported can be pressed and fixed, and the bearing inner ring can be clamped and fixed. And the bearing inner ring is stably fixed on the mounting seat, so that the positioning effect on the bearing inner ring is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing and application technology, and in particular to an adjustable bearing inner ring drilling and positioning fixture. Background Technology

[0002] During the machining of the inner ring of a bearing, it is often necessary to drill holes on its surface. In order to ensure the positional accuracy of the drilling and the machining efficiency, a positioning fixture is required to fix and position the inner ring of the bearing.

[0003] Traditional positioning fixtures often have a fixed structure and can only be used for bearing inner rings of specific sizes. When different sizes of bearing inner rings need to be machined, different fixtures need to be changed, which is cumbersome and costly. At the same time, some fixtures cannot guarantee the concentricity of the bearing inner ring during the positioning process, resulting in drilling position deviation and affecting product quality. Therefore, this utility model proposes an adjustable bearing inner ring drilling positioning fixture. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an adjustable bearing inner ring drilling and positioning fixture. By setting a three-jaw inner support structure, it can support and fix the placed bearing inner ring from the inside to the outside, thereby improving the clamping and fixing of the bearing inner ring. At the same time, a clamping block is set on the top of the inner support structure, which can press and fix the bearing inner ring after the inner support, so that it is stably fixed on the mounting base, thereby improving the positioning effect of the bearing inner ring.

[0005] To solve the above-mentioned technical problems, the present invention provides an adjustable bearing inner ring drilling and positioning fixture, including a mounting base, a slide frame slidably connected to the inner top of the mounting base, a turntable rotatably connected to the bottom of the slide frame, a plurality of support columns slidably connected inside the slide frame, a clamping cylinder rotatably connected to the bottom of the turntable, and an adjustment mechanism installed on the end face of the drive rod of the clamping cylinder.

[0006] The present invention is further configured such that: the mounting base is provided with a plurality of mounting bolt holes symmetrically opened near both ends, and a gasket is fixedly connected at the top center of the mounting base.

[0007] The above technical solution facilitates the installation and fixation of the entire fixture using mounting bolt holes, and the use of shims can protect the bottom of the bearing inner ring.

[0008] The present invention is further configured such that: each of the slides near the end face is provided with a sliding hole, and is slidably connected to the outer wall of the slide rod installed at the top of the mounting base through the sliding hole; and multiple limiting grooves are evenly provided near the middle of the slide.

[0009] The above technical solution facilitates the sliding of the carriage to the external sliding support column to slide up and down, thereby pressing and fixing the inner ring of the bearing. During the rotation of the turntable, the support column fixes the inner ring of the bearing.

[0010] The present invention is further configured such that: the turntable is rotatably connected to the center of the bottom of the slide, and multiple arc-shaped grooves are provided in the circumferential direction, and the bottoms of the multiple support columns are respectively slidably connected to the inner wall of the arc-shaped grooves.

[0011] The above technical solution facilitates the rotation of the turntable and the arc groove, thereby driving the internal sliding support column and thus supporting and fixing the inner ring of the bearing after placement.

[0012] The present invention is further configured such that: the plurality of support columns pass through the plurality of limiting grooves respectively, and the outer walls of the plurality of support columns are fixedly connected to the sleeves; the inner walls of the plurality of sleeves are slidably connected to the outer walls of the slide; and the tops of the plurality of support columns are bolted to pressure blocks.

[0013] The above technical solution facilitates the sliding of the sleeve on the carriage, improves the stability of the support column during the adjustment process, and thus enables stable fixing of the bearing inner ring.

[0014] The present invention is further configured such that: the adjusting mechanism includes a positioning block bolted to the outer wall of the pressing cylinder drive rod, the positioning block clamping a drive motor near its end face, the output shaft end face of the drive motor being fixedly connected to a drive gear, and the outer wall of the drive gear being meshed with a driven gear.

[0015] With the above technical solution, the drive motor is started, and its output shaft drives the rotation of the drive gear. The drive gear drives the rotation of the meshing driven gear, which in turn causes the turntable to rotate at the bottom of the carriage, and finally causes the support column to slide and adjust.

[0016] The present invention is further configured such that: the clamping cylinder is bolted to the center of the inner bottom of the mounting base, and the end face of the drive rod is rotatably connected to the driven gear, while the driven gear is bolted to the center of the bottom of the turntable.

[0017] The above technical solution facilitates the rotation of the turntable on the end face of the drive rod of the clamping cylinder via the driven gear, thereby supporting and fixing the inner ring of the bearing.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The adjustable bearing inner ring drilling and positioning fixture proposed in this utility model has a three-jaw internal support structure, which enables it to support and fix the placed bearing inner ring from the inside to the outside, thereby improving the clamping and fixing of the bearing inner ring.

[0020] 2. The adjustable bearing inner ring drilling and positioning fixture proposed in this utility model has a clamping block on the top of the inner support structure, which can clamp and fix the bearing inner ring after the inner support, so that it is stably fixed on the mounting base, thereby improving the positioning effect of the bearing inner ring. Attached Figure Description

[0021] Figure 1 This is a first structural diagram of an adjustable bearing inner ring drilling and positioning fixture according to the present invention.

[0022] Figure 2 This is a second structural diagram of an adjustable bearing inner ring drilling and positioning fixture according to the present invention.

[0023] Figure 3 This is a structural diagram of the mounting base in an adjustable bearing inner ring drilling and positioning fixture according to this utility model;

[0024] Figure 4 This is a structural diagram of the slide in an adjustable bearing inner ring drilling and positioning fixture according to this utility model;

[0025] Figure 5 This is a structural diagram of the adjusting mechanism in an adjustable bearing inner ring drilling and positioning fixture of this utility model;

[0026] Figure 6 This is a structural diagram of the support column in an adjustable bearing inner ring drilling and positioning fixture according to this utility model.

[0027] In the diagram: 1. Mounting base; 11. Mounting bolt hole; 12. Washer; 13. Slide rod; 2. Slide frame; 21. Slide hole; 22. Limiting groove; 3. Turntable; 31. Arc groove; 4. Support column; 41. Sleeve; 42. Pressure block; 5. Adjustment mechanism; 51. Positioning block; 52. Drive motor; 53. Drive gear; 54. Driven gear; 6. Clamping cylinder. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] like Figures 1-6As shown, an adjustable bearing inner ring drilling and positioning fixture includes a mounting base 1. The mounting base 1 has multiple mounting bolt holes 11 symmetrically arranged near both ends. A shim 12 is fixedly connected to the center of the top of the mounting base 1, facilitating the positioning and fixing of the entire fixture using the mounting bolt holes 11. The shim 12 also provides bottom protection for the bearing inner ring. A slide bracket 2 is slidably connected to the inner top of the mounting base 1. Each slide bracket 2 has sliding holes 21 near its end face, and is slidably connected to the mounting base 1 via these sliding holes 21. The slide rod 13 is installed on the outer wall of the top of the mounting base 1. Multiple limiting grooves 22 are evenly distributed near the center of the slide 2, facilitating the slide 2 to drive the externally sliding support column 4 to slide up and down, thereby pressing and fixing the inner ring of the bearing. During the rotation of the turntable 3, the support column 4 fixes the inner ring of the bearing. The bottom of the slide 2 is rotatably connected to the turntable 3, which is rotatably connected to the center of the bottom of the slide 2 and has multiple arc-shaped grooves 31 in the circumferential direction. The bottoms of the multiple support columns 4 are respectively slidably connected... The inner wall of the arc-shaped groove 31 is connected to the slide 2, which facilitates the rotation of the arc-shaped groove 31 driven by the turntable 3, thereby driving the internal sliding support column 4 and supporting and fixing the inner ring of the bearing after placement. Multiple support columns 4 are slidably connected inside the slide 2. The multiple support columns 4 pass through multiple limiting grooves 22 respectively, and their outer walls are fixedly connected to sleeves 41. The inner walls of the multiple sleeves 41 are slidably connected to the outer wall of the slide 2. The top of each of the multiple support columns 4 is bolted with a pressure block 42 to facilitate the use of the sleeves 41 in the slide. The sliding mechanism on the frame 2 improves the stability of the support column 4 during the adjustment process, thereby enabling stable fixation of the bearing inner ring. The bottom of the turntable 3 is rotatably connected to a clamping cylinder 6, which is bolted to the center of the inner bottom of the mounting base 1. The end face of the drive rod is rotatably connected to the driven gear 54, which is bolted to the center of the bottom of the turntable 3. This allows the turntable 3 to rotate on the end face of the drive rod of the clamping cylinder 6 via the driven gear 54, thereby supporting and fixing the bearing inner ring.

[0030] like Figure 4 and Figure 5 As shown, an adjustment mechanism 5 is installed on the end face of the drive rod of the clamping cylinder 6. The adjustment mechanism 5 includes a positioning block 51 bolted to the outer wall of the drive rod of the clamping cylinder 6. The positioning block 51 clamps the drive motor 52 near the end face. The output shaft end face of the drive motor 52 is fixedly connected to the drive gear 53. The outer wall of the drive gear 53 is meshed with the driven gear 54. When the drive motor 52 is started, its output shaft drives the drive gear 53 to rotate. The drive gear 53 drives the meshed driven gear 54 to rotate, thereby causing the turntable 3 to rotate at the bottom of the slide 2, and finally causing the support column 4 to slide and adjust.

[0031] In use, the bearing inner ring to be processed is first placed on the shim 12. Then, the drive motor 52 is started, and its output shaft drives the rotation of the drive gear 53. The drive gear 53 drives the rotation of the meshing driven gear 54, which in turn causes the turntable 3 to rotate at the bottom of the slide 2. Finally, the bottom of the support column 4 moves inside the arc groove 31, so that it slides on the slide 2 to support the outer bearing inner ring. Then, the pressure cylinder 6 drive rod is reset, so that the pressure block 42 at the top of the support column 4 presses against the top of the bearing inner ring, thereby achieving the clamping and fixing of the bearing inner ring.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustable bearing inner ring drilling positioning fixture comprising a mounting base (1), characterized in that: The mounting base (1) is slidably connected to a slide (2) at its inner top. The bottom of the slide (2) is rotatably connected to a turntable (3). Multiple support columns (4) are slidably connected inside the slide (2). A pressing cylinder (6) is rotatably connected to the bottom of the turntable (3). An adjustment mechanism (5) is installed on the end face of the drive rod of the pressing cylinder (6).

2. The adjustable bearing inner race hole positioning fixture of claim 1, wherein: The mounting base (1) has multiple mounting bolt holes (11) symmetrically opened near both ends, and a gasket (12) is fixedly connected at the top center of the mounting base (1).

3. The adjustable bearing inner race hole positioning fixture of claim 1, wherein: The slide (2) is provided with sliding holes (21) near the end face and is slidably connected to the outer wall of the slide rod (13) installed at the top of the mounting base (1) through the sliding holes (21). The slide (2) is provided with multiple limiting grooves (22) evenly near the middle.

4. The adjustable bearing inner race hole positioning fixture of claim 3, wherein: The turntable (3) is rotatably connected to the bottom center of the slide (2), and multiple arc-shaped grooves (31) are provided in the circumferential direction. The bottoms of the multiple support columns (4) are slidably connected to the inner wall of the arc-shaped grooves (31).

5. An adjustable bearing inner race hole positioning fixture according to claim 4, wherein: Multiple support columns (4) pass through multiple limiting grooves (22) respectively, and their outer walls are fixedly connected to sleeves (41). The inner walls of the multiple sleeves (41) are slidably connected to the outer wall of the slide (2). The tops of the multiple support columns (4) are all bolted to pressure blocks (42).

6. The adjustable bearing inner race hole positioning fixture of claim 1 wherein: The adjustment mechanism (5) includes a positioning block (51) bolted to the outer wall of the drive rod of the clamping cylinder (6). The positioning block (51) clamps the drive motor (52) near the end face. The output shaft end face of the drive motor (52) is fixedly connected to the drive gear (53). The outer wall of the drive gear (53) is meshed with the driven gear (54).

7. An adjustable bearing inner race hole positioning fixture according to claim 6, wherein: The clamping cylinder (6) is bolted to the center of the inner bottom of the mounting base (1), and the end face of the drive rod is rotatably connected to the driven gear (54), while the driven gear (54) is bolted to the center of the bottom of the turntable (3).

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