Deburring clamping plate

Abstract

The invention discloses a deburring clamping plate, and belongs to the field of metal cutting. The deburring clamping plate comprises a clamping plate body. A notch is formed in the first edge portion of the clamping plate body, and the notch is configured to be matched with a clamping spring groove of a spline shaft in shape and size. The first edge portion is provided with burr removing scraping teeth, and the burr removing scraping teeth are configured in the mode that under the state that the first edge portion is clamped into the clamping spring groove, the clamping plate body is rotated around the axis of the spline shaft, and burrs in the clamping spring groove can be scraped. The clamping plate solves the problems that in the prior art, metal burrs in a clamping spring groove are difficult to remove, and the removing efficiency is low.

Description

Technical Field

[0001] This application relates to the field of metal cutting, and more particularly to a deburring clamp. Background Technology

[0002] During the machining of splined shafts, splines need to be milled. However, when the milling cutter passes through the circlip groove, some metal burrs are generated that are difficult to completely remove from the groove and thus adhere to the inside of the circlip groove. If these residual metal burrs are not thoroughly removed, they will affect the subsequent assembly of the circlip. Currently, removing such metal burrs from deep grooves and narrow slots mostly relies on manual blowing and scraping with general tools, which suffers from incomplete cleaning and low operational efficiency. Therefore, there is an urgent need for a specialized tool that can efficiently and thoroughly remove residual metal burrs from the circlip groove. Summary of the Invention

[0003] This application aims to provide a special tool that can efficiently and thoroughly remove residual metal burrs from the circlip groove.

[0004] This application provides a deburring clamp, including a clamp body. A notch is formed on a first edge of the clamp body. The shape and size of the notch are configured to fit the retaining groove of a spline shaft. The first edge is provided with deburring teeth, which are configured to remove burrs in the retaining groove by rotating the clamp body around the spline shaft axis when the first edge is engaged in the retaining groove.

[0005] In one possible implementation, the burr-removing scraper teeth are formed by scraping grooves formed on the first edge portion.

[0006] In one possible implementation, the scraping groove is a cutting edge with an acute-angled opening, and the orientation of the cutting edge is tangent to the rotation direction of the card plate body about the spline axis.

[0007] In one possible implementation, the scraping groove is one or more of a semi-circular groove, a serrated groove, a triangular groove, or an elliptical groove.

[0008] In one possible implementation, the sum of the radial depth of the notch and the recess depth of the scraping groove is greater than the major diameter of the spline shaft.

[0009] In one possible implementation, a guide angle is formed on the portion of the first edge near the notch, the guide angle extending obliquely inward from the outer surface of the first edge.

[0010] In one possible implementation, there are multiple deburring teeth, which are spaced apart on the first edge portion.

[0011] In one possible implementation, the notch and the puncture removal teeth are respectively provided on the first edge portions on both sides of the card plate body.

[0012] In one possible implementation, the pallet body has a second edge portion that does not intersect with the first edge portion, the second edge portion being used for manually gripping the pallet body.

[0013] In one possible implementation, the thickness of the card plate body is configured such that when the card plate body is inserted into the snap ring groove, the card plate body and the spline shaft form a clearance fit.

[0014] Compared with the prior art, the beneficial effects of this application are as follows:

[0015] Align the notch on the clamping plate body with the retaining ring groove of the splined shaft, so that the first edge engages within the retaining ring groove. Because the notch and retaining ring groove match in shape and size, the clamping plate body can be stably positioned within the groove. The operator then manually holds the clamping plate body and rotates it around the splined shaft axis. During rotation, the deburring teeth located on the first edge contact the inner wall of the retaining ring groove, converting the rotational force into a scraping force that directly acts on the residual metal burrs on the inner wall of the retaining ring groove. This causes the teeth embedded in the groove to continuously scrape the groove wall during rotation, thoroughly removing the adhered metal burrs.

[0016] In summary, this application achieves precise positioning through the structural adaptation of the notch and the retaining ring groove, while the rotation of the retaining plate body drives the deburring teeth to actively scrape the burrs in the groove. The coordinated design of the notch and the deburring teeth allows the tool to be stably embedded in the retaining ring groove, and the mechanical force is concentrated on the burr area for cleaning through rotation. Only one rotation of the retaining plate around the spline shaft is needed to clean the burrs, thus solving the problem of difficult and inefficient removal of metal burrs in the retaining ring groove in the prior art. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram is shown when the deburring chuck has acute-angled cutting edges.

[0019] Figure 2 A side view of the deburring plate is shown;

[0020] Figure 3A schematic diagram is shown when the deburring chuck scraping groove is a semi-circular groove.

[0021] Explanation of key component symbols:

[0022] 10-Panel body; 1-First edge; 2-Notch; 3-Deburring scraper teeth; 4-Guide angle; 5-Second edge. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] Example 1

[0025] During the machining of splined shafts, splines need to be milled. However, when the milling cutter passes through the circlip groove, some metal burrs are generated that are difficult to completely remove from the circlip groove and thus stick to the inside of the circlip groove. Existing methods for cleaning metal burrs are inefficient and not thorough enough, so there is an urgent need for a specialized cleaning tool.

[0026] Please see Figure 1 This solution provides a deburring clamp, including a clamp body 10. The first edge portion 1 of the clamp body 10 has a notch 2. The shape and size of the notch 2 are configured to fit the retaining groove of the spline shaft. The first edge portion 1 is provided with deburring scraping teeth 3. The deburring scraping teeth 3 are configured such that, when the first edge portion 1 is engaged in the retaining groove, the clamp body 10 can be rotated around the spline shaft axis to scrape off the burrs in the retaining groove.

[0027] Specifically, notch 2 is a recessed structure on the edge of the clamping plate body 10 that matches the shape and size of the retaining spring groove in the spline shaft. Since the cross-section of the spline shaft is roughly circular, notch 2 is generally designed to be roughly semi-circular. Notch 2 can be achieved by wire cutting on the formed rectangular clamping plate. This structure allows the clamping plate body 10 to be accurately embedded inside the retaining spring groove, ensuring the positioning accuracy of subsequent scraping operations.

[0028] The burr removal teeth 3 are physical structures used to remove burrs. When the clamping plate body 10 rotates, this structure contacts the inner wall of the clamping spring groove, converting the rotational motion into scraping force, which directly acts on the residual metal burrs.

[0029] It should also be noted that the pallet body 10 is made of a rigid material (such as stainless steel) to ensure stable force application during the scraping process. The pallet body 10 requires quenching during processing to improve the hardness and wear resistance of the deburred pallet. After processing, the hardness of the pallet body 10 is HRC50-55.

[0030] The working principle of this device is as follows:

[0031] First, align the notch 2 of the clamping plate body 10 with the retaining ring groove of the spline shaft, so that the first edge portion 1 engages with the retaining ring groove. Because the notch 2 matches the shape and size of the retaining ring groove, the clamping plate body 10 can be stably positioned within the retaining ring groove. Then, the operator manually holds the clamping plate body 10 and rotates it around the spline shaft axis. During rotation, the deburring teeth 3 arranged on the first edge portion 1 contact the inner wall of the retaining ring groove, converting the rotational force into a scraping force, directly acting on the residual metal burrs on the inner wall of the retaining ring groove. This causes the teeth embedded in the groove to continuously scrape the groove wall during rotation, thoroughly removing the adhered metal burrs.

[0032] In summary, this solution achieves precise positioning through the structural adaptation of notch 2 and the snap ring groove. Simultaneously, the rotation of the clamping plate body 10 drives the deburring teeth 3 to actively scrape burrs within the groove. The coordinated design of notch 2 and deburring teeth 3 allows the tool to be stably embedded within the snap ring groove, and the rotational operation concentrates mechanical force on the burr area for cleaning. Only one rotation of the clamping plate around the spline shaft is needed to clean the burrs, thus solving the problem of difficult and inefficient removal of metal burrs within the snap ring groove in existing technologies.

[0033] Please see Figure 1 In some embodiments, the burr-removing scraper teeth 3 are formed by scraping grooves formed on the first edge portion 1.

[0034] Specifically, the scraping groove can be formed directly on the first edge portion 1 of the clamping plate body 10 by machining methods. For example, the scraping groove can be machined on the first edge portion 1 by methods such as milling, wire cutting, or electrical discharge machining. The shape of the scraping groove can be a serrated groove, a triangular groove, or other geometry suitable for scraping.

[0035] This solution simplifies the manufacturing process of the deburring scraper teeth 3. Since the scraping groove is formed directly on the first edge portion 1, no additional parts processing steps are required, thereby reducing manufacturing costs and production difficulty. At the same time, as an integrated structure of the card plate body 10, the scraping groove has higher structural strength and better durability.

[0036] Please see Figure 1 In some embodiments, the scraping groove is a cutting edge with an acute angle at the opening, and the orientation of the cutting edge is tangent to the rotation direction of the card plate body 10 about the spline axis.

[0037] Specifically, the acute-angled cutting edge of the groove can be formed into a single-sided inclined cutting edge structure through grinding. The orientation of the cutting edge tangent to the rotation direction can be achieved by adjusting the angle between the groove opening direction and the circumferential tangent of the clamping plate body 10. The acute-angled cutting edge further enhances local stress concentration, making it easier for the scraping action to cut into the root of the metal burr. When the clamping plate body 10 adapts to the retaining spring groove through the notch 2 and rotates, the matching relationship between the acute-angled cutting edge and the rotation direction can reduce the cutting resistance and ensure that the cutting edge always maintains contact pressure with the bottom of the retaining spring groove during rotation, thereby achieving continuous burr removal and removal in a single operation.

[0038] Please see Figure 1 and Figure 3 In some embodiments, a guide angle 4 is formed in the portion of the first edge portion 1 near the notch 2, and the guide angle 4 extends obliquely inward from the outer surface of the first edge portion 1.

[0039] When the card plate body 10 is inserted into the snap ring groove, the starting end of the outer surface of the guide angle 4 first contacts the edge of the snap ring groove. The inclined guide angle 4 creates a beveled guiding effect, forcing the card plate body 10 to shift inward along the inclined surface at the moment of contact, thereby automatically correcting the insertion angle deviation. As the insertion depth increases, the continuous inclined surface of the guide angle 4 continuously provides lateral constraint, causing the notch 2 to gradually align with the axial position of the snap ring groove.

[0040] Please see Figure 1 and Figure 3 In some embodiments, there are multiple deburring teeth 3, which are spaced apart on the first edge portion 1.

[0041] Specifically, the spacing between the multiple deburring teeth 3 can be adjusted adaptively according to the circumferential length of the retaining ring groove. For example, the spacing between adjacent teeth can be controlled within the range of 2 to 4 mm. The number of teeth can be set to 4 to 6, and the specific number can be determined according to the burr distribution density in the retaining ring groove.

[0042] When the clamping plate body 10 rotates around the spline shaft axis, multiple scraping teeth arranged at intervals sequentially contact different positions of the retaining spring groove. After the previous scraping tooth completes the initial scraping, the subsequent scraping teeth perform a secondary cleaning of the remaining burrs. That is, due to the interval arrangement of the scraping teeth, each scraping tooth forms a complementary scraping coverage area in the circumference, eliminating the cleaning blind spots caused by the size limitations of a single scraping tooth. Furthermore, during rotation, the interval arrangement of the scraping teeth can ensure that the scraping force is evenly distributed along the circumference, avoiding the problem of jamming caused by concentrated force in local areas.

[0043] In summary, this solution expands the coverage of the scraping action and improves cleaning efficiency. Multiple spaced-apart deburring teeth 3 can more thoroughly clean the burrs in the retaining ring groove during the rotation of the retaining plate body 10, avoiding the incomplete cleaning problems that may occur with a single tooth. Simultaneously, the spaced-apart teeth ensure a uniform distribution of scraping force, reducing the impact of excessive local resistance on operational stability and also relatively reducing the wear of individual teeth.

[0044] Please see Figure 1 and Figure 3 In some embodiments, notches 2 and burr removal teeth 3 are provided on the first edge portions 1 on both sides of the card plate body 10.

[0045] Understandably, when the chuck body 10 only has a notch 2 and a deburring tooth 3 on one side, the chuck direction needs to be frequently adjusted during operation to adapt to different processing positions, resulting in limited operating efficiency. Furthermore, when the deburring tooth 3 on one side of the chuck is damaged, the deburring tooth 3 on the other side can be used without replacing the chuck. Therefore, in this solution, the scraping structure is symmetrically arranged on both sides of the chuck, which not only extends the tool's service life but also improves operating efficiency.

[0046] Please see Figure 1 and Figure 3 In some embodiments, the card body 10 has a second edge portion 5 that does not intersect with the first edge portion 1, and the second edge portion 5 is used for manually gripping the card body 10.

[0047] Specifically, the second edge portion 5 is constructed as an independent structure separate from the first edge portion 1, and the two are physically isolated by the central area of ​​the retaining plate body 10. When the first edge portion 1 is inserted into the retaining spring groove, the second edge portion 5 is completely outside the outer contour of the spline shaft, avoiding contact between the hand and the workpiece. The operator applies rotational force around the shaft by grasping the second edge portion 5, thus avoiding operational deviations caused by contact between the hand and the workpiece.

[0048] In some preferred embodiments, the second edge portion 5 is processed into an outwardly extending arc-shaped grip structure with anti-slip texture on its surface, and the arc-shaped contour is adapted to the natural grip curve of the palm to improve operating comfort.

[0049] Please see Figure 2 In some embodiments, the thickness of the card plate body 10 is configured such that when the card plate body 10 is inserted into the snap ring groove, the card plate body 10 forms a clearance fit with the spline shaft.

[0050] Understandably, if the fit between the chuck body 10 and the snap ring groove is too tight, it may lead to increased rotational resistance or even jamming. However, in this solution, after the chuck body 10 is inserted into the snap ring groove, the clearance fit creates a gap layer between the chuck body 10 and the splined shaft surface (for example, a gap layer between 0.1 mm and 0.5 mm). This allows the chuck body 10 to adapt to position adjustments during rotation, avoiding excessive rotational resistance that could cause operational difficulties, reducing frictional wear between the two, and extending the tool's service life.

[0051] Example 2

[0052] Please see Figure 3 This embodiment provides a deburring plate, which differs from Embodiment 1 in that the scraping groove in this embodiment is a semi-circular groove. In some other embodiments, the scraping groove can also be an elliptical groove.

[0053] It should be noted that when scraping grooves with a sharp-angled cutting edge, there are issues such as insufficient strength of the groove edge structure leading to easy wear of the scraping teeth, and stress concentration during scraping may cause wear inside the snap ring groove.

[0054] In this design, when the card plate body 10 rotates around the spline shaft axis, the arc edge of the semi-circular groove contacts the side wall of the retaining ring groove. The contact stress is dispersed to both sides of the groove along the tangent of the arc, avoiding local stress concentration that could lead to chipping of the cutting edge, thereby extending the service life of the scraping teeth and reducing wear inside the retaining ring groove. Furthermore, the continuous curved surface of the semi-circular groove, compared to an acute-angled groove, can form a smoother chip removal channel, preventing metal chips from being retained and accumulated inside the groove.

[0055] Please see Figure 3 In some embodiments, the sum of the radial depth of the notch 2 and the recess depth of the scraping groove is greater than the major diameter of the spline shaft.

[0056] The radial depth of notch 2 depends on the minor diameter of the snap ring groove, and the depth of the scraping groove serves as the scraping structure to determine the coverage of the internal space of the snap ring groove. The combined depth of the two is constructed to exceed the major diameter of the spline shaft, thereby ensuring that the scraping groove can fully contact the burrs on the bottom and sidewalls of the snap ring groove during the rotation of the snap ring body 10, avoiding burr residue caused by insufficient tool insertion depth.

[0057] In summary, this solution solves the problem of blind spots in burr removal caused by the mismatch between the general tool size and the spline shaft size in existing solutions, thus improving the thoroughness of burr removal.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A deburring clamp, comprising a clamp body, characterized in that: The first edge of the card plate body has a notch, the shape and size of which are configured to fit the retaining groove of the spline shaft; the first edge is provided with deburring teeth, which are configured to remove burrs in the retaining groove by rotating the card plate body around the spline shaft axis when the first edge is engaged in the retaining groove.

2. The deburring plate according to claim 1, characterized in that, The burr removal scraping teeth are formed by scraping grooves formed on the first edge portion.

3. The deburring plate according to claim 2, characterized in that, The scraping groove is a cutting edge with an acute angle at the opening, and the orientation of the cutting edge is tangent to the rotation direction of the card plate body around the spline axis.

4. The deburring plate according to claim 2, characterized in that, The scraping groove is one or more of the following: a semi-circular groove, a serrated groove, a triangular groove, or an elliptical groove.

5. The deburring plate according to claim 2, characterized in that, The sum of the radial depth of the notch and the recess depth of the scraping groove is greater than the major diameter of the spline shaft.

6. The deburring plate according to claim 1, characterized in that, A guide angle is formed on the portion of the first edge near the notch, and the guide angle extends obliquely inward from the outer surface of the first edge.

7. The deburring plate according to claim 1, characterized in that, The deburring scraper teeth are multiple and are arranged at intervals on the first edge portion.

8. The deburring plate according to claim 1, characterized in that, The notches and the burr-removing scraping teeth are respectively provided on the first edge portions on both sides of the card plate body.

9. The deburring plate according to claim 1, characterized in that, The card plate body has a second edge portion that does not intersect with the first edge portion, and the second edge portion is used for manually gripping the card plate body.

10. The deburring plate according to claim 1, characterized in that, The thickness of the card plate body is configured such that when the card plate body is inserted into the retaining spring groove, the card plate body and the spline shaft form a clearance fit.

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