Blind hole part abrasive flow polishing tool

Abstract

The utility model discloses a blind hole part abrasive flow polishing tool. The blind hole part abrasive flow polishing tool comprises a bottom plate, a guide column, a clamping head and a motor assembly capable of driving the clamping head to rotate. The lower end of the guide column is fixed to the center of the bottom plate, a blind hole part is arranged on the peripheral face of the guide column in a sleeving mode, and gaps are formed between the blind hole part and the surface of the bottom plate and between the blind hole part and the guide column. The upper end of the clamping head is fixed to the power output end of the motor assembly, the blind hole part is clamped by the lower end of the clamping head, and the motor assembly drives the clamping head to rotate and drives the blind hole part to rotate. The positioning device is simple in structure, ingenious in design, capable of rapidly positioning the blind hole part on abrasive flow polishing equipment, convenient, simple and rapid to operate, reasonable in structural design, capable of achieving polishing and grinding of the inner hole wall face of the blind hole part, and even and ideal in grinding effect.

Description

Technical Field

[0001] This utility model relates to the field of mechanical device technology, and in particular to an abrasive flow polishing fixture for blind hole parts. Background Technology

[0002] Blind hole parts are a very common type of component. Many blind hole parts have high requirements for the surface finish of their inner hole walls, necessitating polishing or grinding to ensure a smooth finish. Currently, one method is manual grinding. However, manual grinding is inefficient, and the grinding head cannot reach deep areas of the blind hole or smaller holes, making it difficult to guarantee the desired grinding effect, resulting in unsatisfactory results.

[0003] To ensure the smoothness of the inner wall surface of the blind hole parts after grinding, abrasive flow polishing is considered. Abrasive flow polishing machines are fluid grinding devices that use a viscoelastic polymer as a carrier and elastic, hard, flowing abrasive grains as the processing medium. The fluid flows under pressure across the surface being processed to achieve the desired finish. Abrasive flow machining improves surface quality by removing micro-protrusions on the workpiece surface through abrasive grains, and is considered ultra-precision machining. Therefore, it is necessary to develop a specialized polishing fixture to achieve proper part positioning during abrasive flow polishing. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a tooling for abrasive flow polishing of blind hole parts. It has a simple structure and ingenious design, which can quickly position blind hole parts on the abrasive flow polishing equipment. It is convenient, simple and fast to operate, and the structure is reasonably designed. It can achieve polishing and grinding of the inner wall surface of blind hole parts, with uniform and ideal grinding effect.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution: a tooling for abrasive flow polishing of blind hole parts, including a base plate, a guide post, a clamping head, and a motor assembly capable of driving the clamping head to rotate; the lower end of the guide post is fixed to the center position of the base plate, the blind hole part is fitted onto the outer circumferential surface of the guide post, and there are gaps between the blind hole part and the surface of the base plate, as well as between the blind hole part and the guide post;

[0006] The upper end of the clamping head is fixed to the power output end of the motor assembly, and the lower end of the clamping head clamps the blind hole part. The motor assembly drives the clamping head to rotate and causes the blind hole part to rotate.

[0007] Furthermore, the clamping head has multiple grooves and strip grooves along its axial direction. Threaded holes are provided on the groove walls on both sides of the strip groove. The blind hole part can be fixed on the clamping head by passing a bolt through the threaded holes on both sides of the groove wall and tightening it.

[0008] Furthermore, the guide post and the base plate are detachably connected.

[0009] In this embodiment, the base plate has a positioning groove at its center, the bottom of the guide post is inserted into the groove, and the guide post is fixed to the positioning plate by fasteners.

[0010] Furthermore, the guide post is a hollow post with a cavity.

[0011] Furthermore, the base plate has a through hole at its center.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, a clamping head clamps the blind hole part, and a motor assembly drives the blind hole part to rotate. In addition, a gap is left between the guide post and the blind hole part, allowing the medium to pass through, thereby achieving the effect of grinding the inner wall surface of the blind hole part. Furthermore, the motor assembly drives the blind hole part to rotate, making the grinding effect more uniform.

[0014] Furthermore, the guide post and the base plate are detachably connected, allowing for the replacement of different guide posts according to the size and specifications of the blind hole parts. The replacement process is simple and convenient, improving the versatility of the tooling.

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is an exploded structural diagram of the lower half of this utility model;

[0019] The parts in the attached diagram are labeled as follows:

[0020] Motor assembly 1, clamping head 2, groove 21, strip groove 22, threaded hole 23, blind hole part 3, guide post 4, base plate 5, positioning groove 51, through hole 52, medium 6. Detailed Implementation

[0021] The following specific embodiments illustrate the detailed implementation of this utility model. Those skilled in the art can easily understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in this utility model.

[0022] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation in the accompanying drawings, have no special meaning, and are not intended to limit the scope of protection of this utility model.

[0023] Example: An abrasive flow polishing fixture for blind hole parts, such as... Figures 1 to 3 As shown, it includes a base plate 5, a guide post 4, a clamping head 2, and a motor assembly 1 capable of driving the clamping head to rotate; the lower end of the guide post is fixed to the center position of the base plate, and a blind hole part is fitted onto the outer circumferential surface of the guide post, with gaps between the blind hole part and the surface of the base plate, as well as between the blind hole part and the guide post;

[0024] The upper end of the clamping head is fixed to the power output end of the motor assembly, and the lower end of the clamping head clamps the blind hole part. The motor assembly drives the clamping head to rotate and causes the blind hole part to rotate.

[0025] In this embodiment, the clamping head has multiple grooves 21 and strip grooves 22 along its axial direction. Threaded holes 23 are formed on the groove walls on both sides of the strip groove. By passing bolts through the threaded holes on both sides of the groove walls and tightening them, the blind hole part can be fixed to the clamping head. The grooves here are mainly used for clearance, providing enough space to tighten the bolts, and of course, they also reduce weight and save materials.

[0026] In this embodiment, the guide post and the base plate are detachably connected. Different guide posts can be replaced according to the size specifications of the blind hole parts. The replacement process is simple and convenient, improving the versatility of the tooling.

[0027] In this embodiment, the base plate has a positioning groove 51 at its center, the bottom of the guide post is inserted into the groove, and the guide post is fixed to the positioning plate by fasteners.

[0028] In this embodiment, the guide post is a hollow post with a cavity.

[0029] In this embodiment, the base plate has a through hole 52 at its center.

[0030] The working principle and process of this utility model:

[0031] The lower half of the fixture is installed on the worktable of the abrasive flow polishing equipment. At this time, the guide column is fixedly installed on the base plate. The upper half of the fixture (including the motor assembly and clamping head) is installed on the abrasive flow polishing equipment. Other drive mechanisms can also drive the upper half of the fixture to rise or move horizontally. The blind hole part is placed in the clamping head, and then the bolts are tightened. Due to the strip groove, the clamping head will tighten and fix the blind hole part during the bolt tightening process. Then the motor assembly will drive the blind hole part to rotate. At the same time, the abrasive flow equipment will squeeze the medium 6 (or abrasive) from the through hole 52 of the base plate into the cavity in the middle of the positioning column. The abrasive will enter the gap between the blind hole part and the positioning column from the upper end of the positioning column, grinding and polishing the inner wall of the blind hole part. Afterwards, the abrasive will flow out from the lower end of the blind hole part and the lower root of the positioning column. The abrasive flow polishing equipment has a built-in abrasive return function, continuously driving the abrasive from the through hole into the interior of the positioning cavity. Because there is a gap between the guide post and the blind hole part, the medium can pass through, thereby achieving the effect of grinding the inner wall surface of the blind hole part. Then, the motor assembly drives the blind hole part to rotate, making the grinding effect more uniform.

[0032] The above description is merely an embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An abrasive flow polishing fixture for blind hole parts, characterized in that: It includes a base plate (5), a guide post (4), a clamping head (2), and a motor assembly (1) capable of driving the clamping head to rotate; the lower end of the guide post is fixed to the center position of the base plate, and a blind hole part is fitted onto the outer circumferential surface of the guide post, with gaps between the blind hole part and the surface of the base plate, as well as between the blind hole part and the guide post; The upper end of the clamping head is fixed to the power output end of the motor assembly, and the lower end of the clamping head clamps the blind hole part. The motor assembly drives the clamping head to rotate and causes the blind hole part to rotate.

2. The abrasive flow polishing fixture for blind hole parts according to claim 1, characterized in that: The clamping head has multiple grooves (21) and strip grooves (22) along its axial direction. Threaded holes (23) are provided on the groove walls on both sides of the strip groove. The blind hole part can be fixed on the clamping head by passing a bolt through the threaded holes on both sides of the groove wall and tightening it.

3. The abrasive flow polishing fixture for blind hole parts according to claim 1, characterized in that: The guide post and the base plate are detachably connected.

4. The abrasive flow polishing fixture for blind hole parts according to claim 1, characterized in that: The base plate has a positioning groove (51) at its center. The bottom of the guide post is inserted into the groove and the guide post is fixed to the positioning plate by fasteners.

5. The abrasive flow polishing fixture for blind hole parts according to claim 1, characterized in that: The guide post is a hollow post with a cavity.

6. The abrasive flow polishing fixture for blind hole parts according to claim 1, characterized in that: The base plate has a through hole (52) at its center.

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