Tool clamp for cylindrical gear drilling

Abstract

The utility model relates to the technical field of gear drilling machining, and discloses a cylindrical gear drilling tool clamp which comprises a positioning seat, a nut is arranged at the upper end of the outer wall of the positioning seat, a shape pad is arranged at the bottom of the nut, and the bottom of the shape pad is movably connected with the top of the positioning seat. A first hexagon socket cap screw is arranged on the left side of the inner wall of the positioning seat, a handle body is arranged on the left side of the inner wall of the positioning seat through the first hexagon socket cap screw, and through the arrangement of the positioning seat, an inner hole of a workpiece is locked through shaft clearance fit of the positioning seat; an operator can carry out rotary indexing and limiting on a workpiece through the limiting pins on the handle body and the main shaft, rotation and limiting of the workpiece can be achieved by pulling out the limiting pins and rotating the positioning base every time a hole is drilled, finally drilling machining of a product is completed, an existing vertical drilling machine or an existing bench drill is fully utilized, product machining can be guaranteed through existing equipment, and the production efficiency is improved. Therefore, the equipment investment is reduced, the processing cost is saved, and the equipment space can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear drilling, in particular to a fixture for drilling cylindrical gears. Background Art

[0002] Gear processing is a process of obtaining specific structures and precisions of gears by mechanical methods. Gears are the core transmission components in automobile motion, and the quality of their processing will directly affect the vibration noise and reliability of the automobile assembly and even the whole vehicle, and sometimes it will become a key factor restricting the improvement of product level. The process holes in the web of cylindrical gears are mainly used for the outflow of quenching oil during product heat treatment to avoid waste of quenching oil. In addition, they can also be used for positioning during the product assembly process.

[0003] The existing technical solution is to use a CNC machining center or a special CNC machine tool for drilling. The disadvantages of this method are the increased investment in machine tools, the increased amortization cost of workpieces, and the occupation of a large amount of equipment space.

[0004] Therefore, we propose a fixture for drilling cylindrical gears. Content of the Utility Model

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a fixture for drilling cylindrical gears.

[0006] To achieve the above object, the utility model adopts the following technical scheme. A fixture for drilling cylindrical gears includes a positioning seat. At the upper end of the outer wall of the positioning seat, there is a nut. At the bottom of the nut, there is a washer, and the bottom of the washer is movably connected to the top of the positioning seat. On the left side of the inner wall of the positioning seat, there is a first hexagon socket head cap screw. On the left side of the inner wall of the positioning seat, a handle body is arranged through the first hexagon socket head cap screw. On the inner wall of the positioning seat, there is a main shaft. On the inner wall of the positioning seat, there is a second hexagon socket head cap screw. On the inner wall of the positioning seat, a bearing sleeve is arranged through the second hexagon socket head cap screw. A sleeve is arranged on the outer wall of the second hexagon socket head cap screw. At the middle end of the inner wall of the positioning seat, there is an angular contact ball bearing. At the bottom of the positioning seat, there is a bottom plate. At the lower end of the inner wall of the positioning seat, there is a third hexagon socket head cap screw. A gland is arranged at the bottom of the positioning seat through the third hexagon socket head cap screw. On the right side of the outer wall of the positioning seat, there is a support. Inside the support, there is a cylindrical helical compression spring.

[0007] Preferably, a bushing is arranged on the inner wall of the support outside the cylindrical helical compression spring.

[0008] Preferably, a handle sleeve is arranged on the right side wall surface of the support.

[0009] Preferably, a limit pin is arranged on the inner wall of the support.

[0010] Preferably, a fourth hexagon socket head cap screw is arranged at the lower end of the inner wall of the support.

[0011] Preferably, the support is fixedly connected with the bottom plate through a fourth hexagon socket head cap screw.

[0012] Preferably, a fifth hexagon socket head cap screw is arranged on the left side of the inner wall of the support.

[0013] Preferably, a first cylindrical pin is arranged in the middle of the inner wall of the support.

[0014] Preferably, a second cylindrical pin is arranged on the right side of the inner wall of the support.

[0015] The utility model provides a fixture for drilling cylindrical gears, which has the following beneficial effects: by arranging a positioning seat, the inner hole of the workpiece is locked through the axial clearance fit of the positioning seat. The operator can perform rotary indexing and limiting on the workpiece through the handle body and the limiting pin on the main shaft. After drilling each hole, by pulling out the limiting pin and rotating the positioning seat, the rotation and limiting of the workpiece can be realized, and finally the drilling processing of the product is completed. The existing vertical drilling machine or bench drill is fully utilized, and the processing of the product can be ensured by using the existing equipment, thus reducing equipment investment, saving processing costs, and reducing equipment space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a sectional view of the internal structure of the utility model;

[0017] Figure 2 is a schematic top view of the utility model.

[0018] Legend: 10, nut; 11, washer; 12, positioning seat; 13, first hexagon socket head cap screw; 14, handle body; 15, main shaft; 16, bearing sleeve; 17, second hexagon socket head cap screw; 18, sleeve; 19, angular contact ball bearing; 20, bottom plate; 21, gland; 22, third hexagon socket head cap screw; 23, support; 24, cylindrical helical compression spring; 25, bushing; 26, handle sleeve; 27, limiting pin; 28, fourth hexagon socket head cap screw; 29, fifth hexagon socket head cap screw; 30, first cylindrical pin; 31, second cylindrical pin. DETAILED DESCRIPTION OF THE INVENTION

[0019] To more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0020] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present utility model.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationships indicated by terms such as "center", "upper", "lower", "inner", "outer", "side", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: A fixture for drilling cylindrical gears, as Figure 1 shown, includes a positioning seat 12. At the upper end of the outer wall of the positioning seat 12, there is a nut 10. At the bottom of the nut 10, there is a washer 11, and the bottom of the washer 11 is movably connected to the top of the positioning seat 12. On the left side of the inner wall of the positioning seat 12, there is a first hexagon socket head cap screw 13. On the left side of the inner wall of the positioning seat 12, a handle body 14 is arranged through the first hexagon socket head cap screw 13. On the inner wall of the positioning seat 12, there is a main shaft 15. On the inner wall of the positioning seat 12, there is a second hexagon socket head cap screw 17. On the inner wall of the positioning seat 12, a bearing sleeve 16 is arranged through the second hexagon socket head cap screw 17. On the outer wall of the second hexagon socket head cap screw 17, there is a sleeve 18. In the middle of the inner wall of the positioning seat 12, there is an angular contact ball bearing 19. At the bottom of the positioning seat 12, there is a bottom plate 20. At the lower end of the inner wall of the positioning seat 12, there is a third hexagon socket head cap screw 22. By providing the positioning seat 12, the inner hole of the workpiece is locked through the axial clearance fit of the positioning seat 12. The operator can perform rotary indexing and limiting on the workpiece through the limiting pin 27 on the handle body 14 and the main shaft 15. After drilling each hole, by pulling out the limiting pin 27 and rotating the positioning seat 12, the rotation and limiting of the workpiece can be realized, and finally the drilling processing of the product is completed. The existing vertical drilling machine or bench drill is fully utilized, and the processing of the product can be ensured by using the existing equipment, thereby reducing equipment investment, saving processing costs, and reducing equipment space.

[0026] Embodiment 2: On the basis of Embodiment 1, as Figure 1 shown, a gland 21 is arranged at the bottom of the positioning seat 12 through a third hexagon socket head cap screw 22. On the right side of the outer wall of the positioning seat 12, there is a support 23. Inside the support 23, there is a cylindrical helical compression spring 24. Outside the cylindrical helical compression spring 24 inside the support 23, there is a bushing 25. On the right side wall surface of the support 23, there is a handle sleeve 26. Inside the support 23, there is a limiting pin 27. At the lower end of the inner wall of the support 23, there is a fourth hexagon socket head cap screw 28, and the support 23 is fixedly connected to the bottom plate 20 through the fourth hexagon socket head cap screw 28.

[0027] Embodiment 3: On the basis of Embodiment 1 and Embodiment 2, as Figure 2As shown in the figure, a fifth hexagon socket head cap screw 29 is provided on the left side of the inner wall of the support 23, a first cylindrical pin 30 is provided in the middle of the inner wall of the support 23, and a second cylindrical pin 31 is provided on the right side of the inner wall of the support 23.

[0028] The working principle of the present utility model: The inner hole of the workpiece is locked through the axial clearance fit of the positioning seat 12. The operator can perform rotary indexing and limit on the workpiece through the limit pin 27 on the handle body 14 and the main shaft 15. After drilling each hole, by pulling out the limit pin 27 and rotating the positioning seat 12, the rotation and limit of the workpiece can be realized, and finally the drilling process of the product is completed.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for drilling cylindrical gears, comprising a positioning seat (12), characterized in that: A nut (10) is provided at the upper end of the outer wall of the positioning seat (12). A washer (11) is provided at the bottom of the nut (10), and the bottom of the washer (11) is movably connected to the top of the positioning seat (12). A first hexagon socket head cap screw (13) is provided on the left side of the inner wall of the positioning seat (12). A handle body (14) is provided on the left side of the inner wall of the positioning seat (12) by means of the first hexagon socket head cap screw (13). A main shaft (15) is provided on the inner wall of the positioning seat (12). A second hexagon socket head cap screw (17) is provided on the inner wall of the positioning seat (12). A bearing sleeve (16) is provided on the inner wall of the positioning seat (12) by means of the second hexagon socket head cap screw (17). A sleeve (18) is provided on the outer wall of the second hexagon socket head cap screw (17). An angular contact ball bearing (19) is provided in the middle of the inner wall of the positioning seat (12). A bottom plate (20) is provided at the bottom of the positioning seat (12). A third hexagon socket head cap screw (22) is provided at the lower end of the inner wall of the positioning seat (12). A gland (21) is provided at the bottom of the positioning seat (12) by means of the third hexagon socket head cap screw (22). A support (23) is provided on the right side of the outer wall of the positioning seat (12). A cylindrical helical compression spring (24) is provided in the inner wall of the support (23).

2. The fixture for drilling cylindrical gears according to claim 1, characterized in that: A bushing (25) is provided on the inner wall of the support (23) outside the cylindrical helical compression spring (24).

3. The fixture for drilling cylindrical gears according to claim 1, wherein: A handle sleeve (26) is provided on the right side wall surface of the support (23).

4. The fixture for drilling cylindrical gears according to claim 1, wherein: A limit pin (27) is provided in the inner wall of the support (23).

5. The jig for drilling cylindrical gears according to claim 1, characterized in that: A fourth hexagon socket head cap screw (28) is provided at the lower end of the inner wall of the support (23).

6. The fixture for drilling cylindrical gears according to claim 5, characterized in that: The support (23) is fixedly connected to the bottom plate (20) by means of the fourth hexagon socket head cap screw (28).

7. The fixture for drilling cylindrical gears according to claim 1, wherein: A fifth hexagon socket head cap screw (29) is provided on the left side of the inner wall of the support (23).

8. The fixture for drilling cylindrical gears according to claim 1, characterized in that: A first cylindrical pin (30) is provided in the middle of the inner wall of the support (23).

9. The jig for drilling cylindrical gears according to claim 1, characterized in that: A second cylindrical pin (31) is provided on the right side of the inner wall of the support (23).

Images