Worm deburring tool mechanism

Abstract

The utility model relates to a worm deburring tool mechanism which comprises a bottom plate, a linear guide rail, a wedge-shaped block and an air grinding pen, wherein the wedge-shaped block and a sliding frame on the linear guide rail move synchronously, and the air grinding pen is used for deburring a worm. A worm gear block positioning plate, a mandrel positioning plate and a mandrel for preliminarily positioning a worm are fixed on the bottom plate, a worm gear block for accurately positioning the worm screwed into the mandrel is fixed in the worm gear block positioning plate, and a worm gear groove matched with rotating teeth of the worm is formed in the worm gear block. The mandrel is sleeved with a worm sliding sleeve which is pushed by the worm to slide along the mandrel, the lower end of the worm sliding sleeve is connected with a pushing bearing which moves synchronously with the worm sliding sleeve to drive the wedge block to slide, and therefore the air grinding pen moves along with the screwing-in length of the worm. Therefore, burrs at the tail end of the worm can be precisely machined through the air grinding pen. And moreover, burrs can be accurately machined, and meanwhile, the device can be adaptive to worms with different lengths.

Description

Technical Field

[0001] The utility model relates to the technical field of worm processing, in particular to a worm deburring tooling mechanism. Background Technique

[0002] A worm refers to a gear with one or several helical teeth that meshes with a worm wheel to form an intersecting-axis gear pair. Currently, worms are usually machined by hobbing machines. During the machining process of worms, burrs and lips are generated at both ends of the threaded section because the two ends are not sufficient to form a complete tooth profile, which affects the service life and precision of the worms.

[0003] After the worms are machined and formed, removing the burrs at both ends becomes one of the subsequent operations. Usually, the burrs are removed by manual milling and filing or by operating deburring equipment. The removal quality completely depends on the technical proficiency of the workers, and the product quality is not easy to guarantee, and the production efficiency is relatively low. Content of the Utility Model

[0004] To solve the above problems, the utility model uses a novel mechanical structure. By means of worm wheel positioning, the positioning and control of the insertion length of the worm are achieved; the displacement of the pneumatic pencil is controlled by the bearing and the wedge block connected by the sliding block, so that the burrs and lips can be cleaned up.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A worm deburring tooling mechanism includes a bottom plate 1. A linear guide rail 12 is fixed on the bottom plate 1. A sliding frame 13 capable of sliding back and forth left and right along the linear guide rail 12 is arranged on the linear guide rail 12. A wedge block 2 capable of moving left and right relative to the sliding frame 13 and an inclined positioning frame 3 capable of moving back and forth relative to the sliding frame 13 are arranged on the sliding frame 13. A pneumatic pencil 8 for deburring the worm and arranged at an inclined angle with the axis of the worm 100 is arranged on the inclined positioning frame 3;

[0007] On the base plate 1, a vertically arranged worm wheel block positioning plate 5 and a mandrel positioning plate 6 are successively fixed from front to back. On the worm wheel block positioning plate 5 and the mandrel positioning plate 6, a front shaft hole 51 and a rear shaft hole 61 are correspondingly arranged. The aperture of the front shaft hole 51 is larger than that of the rear shaft hole 61. A mandrel 4 whose front end can extend into the front shaft hole 51 to preliminarily position the worm is fixed in the rear shaft hole 61. A worm wheel block 14 for precisely positioning the worm screwed into the mandrel 4 is fixed in the front shaft hole. A worm wheel groove 141 matching the spiral teeth of the worm is provided on the worm wheel block 14. A worm sliding sleeve 11 that is pushed by the worm 100 and slides along the mandrel 4 is sleeved on the mandrel 4. A thrust bearing 9 that moves synchronously with the worm sliding sleeve 11 and drives the wedge block 2 to slide is connected to the lower end of the worm sliding sleeve 11. An inclined side 21 matching the thrust bearing 9 is provided at the end of the wedge block 2. The stroke of the inclined side 21 of the wedge block 2 is equal to the spiral circumference of the worm 100 screwed in, and the stroke of the vertical side of the wedge block 2 is equal to the distance that the worm pushes the worm sliding sleeve 11, so that the pneumatic grinding pen 8 moves synchronously with the screwing-in length of the worm.

[0008] As a further preferred embodiment of the present invention: after the inclined positioning frame 3 positions the pneumatic grinding pen 8, the pneumatic grinding pen 8 is perpendicular to the worm wheel line of the worm.

[0009] As a further preferred embodiment of the present invention: an included angle of 5° is formed between the pneumatic grinding pen 8 and the worm wheel line of the worm.

[0010] As a further preferred embodiment of the present invention: a plurality of clamping rings 7 are fixed on the inclined positioning frame 3. The pneumatic grinding pen 8 passes through the plurality of clamping rings 7 in sequence and is clamped and fixed by them. The clamping rings 7 are fixed on the inclined positioning frame 3 by bolts.

[0011] As a further preferred embodiment of the present invention: a positioning bolt 10 for restricting the maximum moving position of the worm sliding sleeve 11 is horizontally fixed on the mandrel positioning plate 6. The positioning bolt 10 is arranged between the mandrel positioning plate 6 and the worm wheel block positioning plate 5, and the end of the positioning bolt 10 defines the screwing-in depth of the worm 100.

[0012] As a further preferred embodiment of the present invention: a processing groove 52 communicating with the front shaft hole 51 is provided on the worm wheel block positioning plate 5. When deburring, the tip of the pneumatic grinding pen 8 is inserted into the processing groove 52 to contact the worm 100.

[0013] As a further preferred embodiment of the present invention: at least one pair of positioning pins are provided on the sliding frame 13. At least one pair of horizontal strip-shaped sliding holes 22 for the positioning pins to pass through and capable of sliding left and right relative to the positioning pins are provided on the wedge block 2. A pair of longitudinal strip-shaped sliding holes 31 for the positioning pins to pass through and capable of sliding back and forth relative to the positioning pins are provided on the inclined positioning frame 3.

[0014] As a further preferred embodiment of the present utility model: a side wall card slot communicating with the front shaft hole 51 is provided on the worm wheel block positioning plate 5, and a card joint 142 capable of being inserted into the side wall card slot is provided at the other end of the worm wheel block 14, so that the worm wheel block 14 is positioned on the worm wheel block positioning plate 5.

[0015] As a further preferred embodiment of the present utility model: the inclined positioning frame 3 includes a vertical section 301 and an inclined section 302 connected together, the longitudinal strip-shaped sliding hole 31 is provided on the vertical section 301, and the clamping ring 7 is fixed on the inclined section 302.

[0016] The beneficial effects of the present utility model are as follows: the present utility model uses a mandrel for centering, a worm wheel to control the screwing-in distance and angle of the worm, and a sliding block to control the movement of the pneumatic abrasive pen. There is a certain relationship between the hypotenuse and the vertical side of the wedge block: that is, the stroke of the hypotenuse is equal to the spiral circumference of the worm screwing in, and the vertical side stroke is equal to the distance that the worm pushes the sliding block, so that the pneumatic abrasive pen can accurately process the burrs at the end of the worm. And while being able to accurately process the burrs, it can be adapted to worms of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is one of the three-dimensional views of the present utility model;

[0018] Figure 2 is another three-dimensional view of the present utility model;

[0019] Figure 3 is the third three-dimensional view of the present utility model;

[0020] Figure 4 is the fourth three-dimensional view of the present utility model;

[0021] Figure 5 is the exploded view of the present utility model;

[0022] Figure 6 is the top view of the present utility model;

[0023] Figure 7 is Figure 6 the A-A cross-sectional view of;

[0024] Figure 8 is Figure 6 the B-B cross-sectional view of. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0026] The terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the embodiments of the present disclosure are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having"

[0027] and any variations thereof are intended to cover non-exclusive inclusion. In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments and are not intended to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances. The following further describes the present utility model in detail with reference to Figures 1-8 the accompanying drawings and specific embodiments: The present utility model provides a worm deburring tooling mechanism, including a bottom plate 1, a wedge block 2, an inclined positioning frame 3, a mandrel 4, a worm wheel block positioning plate 5, a mandrel positioning plate 6, a worm sliding sleeve 11, a positioning bolt 10, a thrust bearing 9, a linear guide rail 12, a sliding frame 13, a worm wheel block 14, and a pneumatic grinding pen 8.

[0028] A linear guide rail 12 is fixed on the bottom plate 1. A sliding frame 13 that can slide back and forth left and right along it is provided on the linear guide rail 12. A wedge block 2 that can move left and right relative to the sliding frame 13 and an inclined positioning frame 3 that can move back and forth relative to the sliding frame 13 are provided on the sliding frame 13. A pneumatic grinding pen 8 that is arranged at an inclined angle with the axis of the worm 100 and deburrs the worm is provided on the inclined positioning frame 3;

[0029] On the bottom plate 1, a vertically arranged worm wheel block positioning plate 5 and a mandrel positioning plate 6 are successively fixed front and back. On the worm wheel block positioning plate 5 and the mandrel positioning plate 6, a front shaft hole 51 and a rear shaft hole 61 are correspondingly arranged. The aperture of the front shaft hole 51 is larger than that of the rear shaft hole 61. A mandrel 4 is fixed in the rear shaft hole 61, and the front end of the mandrel 4 can extend into the front shaft hole 51 to preliminarily position the worm. A worm wheel block 14 for precisely positioning the worm screwed into the mandrel 4 is fixed in the front shaft hole. A worm wheel groove 141 matching the spiral teeth of the worm is provided on the worm wheel block 14. A worm sliding sleeve 11 that is pushed by the worm 100 and slides along the mandrel 4 is sleeved on the mandrel 4. A thrust bearing 9 that moves synchronously with the worm sliding sleeve 11 and drives the wedge block 2 to slide is connected to the lower end of the worm sliding sleeve 11. An inclined edge 21 matching the thrust bearing 9 is provided at the end of the wedge block 2. The stroke of the inclined edge 21 of the wedge block 2 is equal to the circumferential length of the spiral line into which the worm 100 is screwed, and the stroke of the vertical edge of the wedge block 2 is equal to the distance that the worm pushes the worm sliding sleeve 11, so that the pneumatic grinding pen 8 moves synchronously with the screwing-in length of the worm.

[0030] At least one pair of positioning pins is provided on the sliding frame 13. At least one pair of transverse strip-shaped sliding holes 22 through which the positioning pins pass and can slide left and right relative to the positioning pins are provided on the wedge block 2. A pair of longitudinal strip-shaped sliding holes 31 through which the positioning pins pass and can slide back and forth relative to the positioning pins are provided on the inclined positioning frame 3.

[0031] The pneumatic grinding pen 8 is fixed by a clamping ring 7 and an inclined positioning frame 3. The worm is preliminarily positioned by the mandrel 4, and after being screwed into the worm wheel block 14, it is precisely positioned. The end of the inserted worm abuts against the worm sliding sleeve 11. As the inserted distance increases, the worm sliding sleeve 11 also moves; a thrust bearing 9 is connected below the worm sliding sleeve. When the sliding block 11 moves, the thrust bearing 9 also moves, and at the same time drives the wedge block 2 to move, so that the pneumatic grinding pen 8 moves with the screwing-in length of the worm, achieving the effect of precise deburring and chamfering.

[0032] A positioning bolt 10 that limits the maximum moving position of the worm sliding sleeve 11 is horizontally fixed on the mandrel positioning plate 6. The positioning bolt 10 is arranged between the mandrel positioning plate 6 and the worm wheel block positioning plate 5, and the end of the positioning bolt 10 limits the screwing-in depth of the worm 100.

[0033] A processing groove 52 communicating with the front shaft hole 51 is provided on the worm wheel block positioning plate 5. When deburring, the tip of the pneumatic grinder 8 is inserted into the processing groove 52 to contact the worm 100. A side wall card slot communicating with the front shaft hole 51 is provided on the worm wheel block positioning plate 5. At the other end of the worm wheel block 14, a card joint 142 capable of being inserted into the side wall card slot is provided to position the worm wheel block 14 on the worm wheel block positioning plate 5. The inclined positioning frame 3 includes a vertical section 301 and an inclined section 302 connected together. The longitudinal strip-shaped sliding hole 31 is provided on the vertical section 301, and the clamping ring 7 is fixed on the inclined section 302.

[0034] The working principle of the present invention is as follows: When the worm 100 needs to be processed, the driving mechanism (not shown) is controlled to drive the sliding frame 13 to move towards the worm 100. The wedge block 2 and the inclined positioning frame 3 are synchronously driven by the sliding frame 13 to move. When the sliding frame moves in place, the worm 100 is screwed into the front shaft hole 51 and sleeved outside the mandrel 4. The mandrel 4 is used to initially position the axis of the worm. According to the principle that the worm wheel block 14 and the worm 100 can be precisely matched, when the worm 100 is screwed into the worm wheel block 14, the screwing angle and length of the worm 100 can be precisely controlled through the worm wheel groove 141 of the worm wheel block 14. The worm wheel block 14 is fixed on the worm wheel positioning plate 5, and the worm wheel block 14 will not rotate when the worm 100 is screwed in. During the screwing process of the worm 100, the worm sliding sleeve 11 is pushed to displace. The worm sliding sleeve 11 is connected to the push bearing 9, and the push bearing 9 controls the wedge block 2 to move leftward relative to the sliding frame 13. The pneumatic grinder 8 is slightly pushed by the screwed-in worm 100 to move backward synchronously, and the inclined positioning frame 3 moves backward relative to the sliding frame. The moving direction of the inclined positioning frame 3 is perpendicular to the moving direction of the wedge block 2. Particularly, there is an angle of 5° between the worm thread of the worm and the pneumatic grinder 8. Therefore, the inclined positioning frame 3 is required to fix the pneumatic grinder 8 so that the pneumatic grinder 8 is perpendicular to the worm thread, so as to make the end of the worm processed smoothly. There is a certain relationship between the hypotenuse and the vertical side of the wedge block 2: that is, the stroke of the hypotenuse is equal to the circumferential length of the spiral line of the worm screwed in, and the stroke of the vertical side is equal to the distance that the worm pushes the sliding block. In this way, the pneumatic grinder 8 can precisely process the burrs at the end of the worm. These two designs can enable the pneumatic grinder 8 to displace in real time with the screwing distance of the worm, so that the pneumatic grinder 8 is always at the end of the worm, thereby achieving the effect of precise deburring.

[0035] The above-described embodiments are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, makes more possible changes, refinements or modifications to the technical solution of the present utility model by using the disclosed technical content, which are all equivalent embodiments of the present utility model. Therefore, all equivalent changes made according to the idea of the present utility model without departing from the content of the technical solution of the present utility model shall be covered by the protection scope of the present utility model.

Claims

1. A worm deburring tooling mechanism, including a bottom plate (1), on which a linear guide rail (12) is fixed, characterized in that, A sliding carriage (13) capable of sliding back and forth left and right is provided on a linear guide rail (12). A wedge block (2) capable of moving left and right relative to the sliding carriage (13) and an inclined positioning frame (3) capable of moving back and forth relative to the sliding carriage (13) are provided on the sliding carriage (13). A pneumatic grinding pen (8) which is arranged at an inclined angle with the axis of a worm (100) and deburrs the worm is provided on the inclined positioning frame (3). A worm wheel block positioning plate (5) and a mandrel positioning plate (6) which are vertically arranged are successively fixed on a bottom plate (1) from front to back. A front shaft hole (51) and a rear shaft hole (61) are correspondingly arranged on the worm wheel block positioning plate (5) and the mandrel positioning plate (6). The aperture of the front shaft hole (51) is larger than that of the rear shaft hole (61). A mandrel (4) whose front end can extend into the front shaft hole (51) to preliminarily position the worm is fixed in the rear shaft hole (61). A worm wheel block (14) which accurately positions the worm screwed into the mandrel (4) is fixed in the front shaft hole. A worm wheel groove (141) which is matched with the helical teeth of the worm is provided on the worm wheel block (14). A worm sliding sleeve (11) which is pushed by the worm (100) and slides along the mandrel (4) is sleeved on the mandrel (4). A pushing bearing (9) which moves synchronously with the worm sliding sleeve (11) and drives the wedge block (2) to slide is connected to the lower end of the worm sliding sleeve (11). An inclined side (21) which is matched with the pushing bearing (9) is provided at the end of the wedge block (2). The stroke of the inclined side (21) of the wedge block (2) is equal to the circumferential length of the spiral line into which the worm (100) is screwed. The stroke of the vertical side of the wedge block (2) is equal to the distance that the worm pushes the worm sliding sleeve (11), so that the pneumatic grinding pen (8) moves synchronously with the screwing-in length of the worm.

2. The deburring tooling mechanism for worm according to claim 1, characterized in that After the inclined positioning frame (3) positions the pneumatic grinding pen (8), the pneumatic grinding pen (8) is perpendicular to the worm wheel line of the worm.

3. The worm deburring tooling mechanism according to claim 2, wherein, An included angle of 5° is formed between the pneumatic grinding pen (8) and the worm wheel line of the worm.

4. A worm deburring tooling mechanism according to claim 1, characterized in that, A plurality of clamping rings (7) are fixed on the inclined positioning frame (3). The pneumatic grinding pen (8) sequentially passes through a plurality of clamping rings (7) and is clamped and fixed by them. The clamping rings (7) are fixed on the inclined positioning frame (3) by bolts.

5. A deburring tooling mechanism for a worm according to claim 1, characterized in that, A positioning bolt (10) which limits the maximum moving position of the worm sliding sleeve (11) is horizontally fixed on the mandrel positioning plate (6). The positioning bolt (10) is arranged between the mandrel positioning plate (6) and the worm wheel block positioning plate (5). The end of the positioning bolt (10) limits the screwing-in depth of the worm (100).

6. The deburring tooling mechanism for worm according to claim 1, characterized in that A processing groove (52) which communicates with the front shaft hole (51) is provided on the worm wheel block positioning plate (5). The tip of the pneumatic grinding pen (8) is inserted into the processing groove (52) to contact the worm (100) during deburring.

7. A deburring tooling mechanism for a worm according to claim 4, characterized in that At least one pair of positioning pins are provided on the sliding carriage (13). At least one pair of transverse strip-shaped sliding holes (22) through which the positioning pins pass and can slide left and right relative to the positioning pins are provided on the wedge block (2). A pair of longitudinal strip-shaped sliding holes (31) through which the positioning pins pass and can slide back and forth relative to the positioning pins are provided on the inclined positioning frame (3).

8. A deburring tooling mechanism for a worm according to claim 1, characterized in that A side wall card slot communicating with the front shaft hole (51) is provided on the worm wheel block positioning plate (5), and a card joint (142) capable of being clamped into the side wall card slot is provided at the other end of the worm wheel block (14) so that the worm wheel block (14) is positioned on the worm wheel block positioning plate (5).

9. The worm deburring tooling mechanism according to claim 7, characterized in that The inclined positioning frame (3) includes a vertical section (301) and an inclined section (302) connected together. The longitudinal strip-shaped sliding hole (31) is arranged on the vertical section (301), and the clamping ring (7) is fixed on the inclined section (302).

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