Tool for assisting indexing drilling of worm

Abstract

The utility model discloses a tool for assisting indexing drilling of a worm, and relates to the technical field of drilling tools. The tool for assisting indexing drilling of the worm comprises a tool base, the tool base is provided with an indexing plate, the indexing plate is provided with an arc-shaped groove, a first positioning hole and a second positioning hole, the included angle between the first positioning hole and the rotating center of the indexing plate is equal to the included angle between the first positioning hole and the rotating center of the indexing plate, and the included angle between the second positioning hole and the arc-shaped groove is equal to the included angle between the first positioning hole and the rotating center of the indexing plate. The tool base is provided with a movable bolt inserted into the first positioning hole or the second positioning hole and a fixed bolt inserted into the arc-shaped groove. The tool for assisting indexing drilling of the worm has the advantages of being easy to operate and high in machining efficiency, and can meet the requirement for batch production.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tooling, in particular to a tooling for assisting worm indexing drilling. Background Art

[0002] Worm gears are increasingly being used in various industries for deceleration and acceleration, and there are various worm styles. One type of worm requires drilling at 90°.

[0003] This type of worm drilling typically begins with a standard fixture, with the drill drilling the first hole. The standard fixture is then used to loosen the worm, rotate it 90°, and then secure it with the standard fixture. Finally, the drill drills the second hole. This method, requiring loosening and then securing, results in low processing efficiency and is difficult to meet the requirements of mass production.

[0004] Therefore, the existing technology needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the drilling operation in the existing technology is cumbersome and the processing efficiency is low. The purpose is to provide a tooling for assisting worm indexing drilling, which adopts corresponding technical means and has the beneficial effects of simple operation and high processing efficiency, and can meet the requirements of mass production.

[0006] The utility model is achieved through the following technical solutions:

[0007] A tool for assisting worm indexing drilling, comprising a tool base, the tool base being provided with a dividing plate, the dividing plate being provided with an arcuate groove, a first positioning hole and a second positioning hole, the angle between the first positioning hole and the second positioning hole relative to the rotation center of the dividing plate being equal to the central angle of the arcuate groove, the tool base being provided with a movable pin inserted into the first positioning hole or the second positioning hole, and a fixed pin inserted into the arcuate groove.

[0008] Using the above technical solution, the worm to be drilled is fixedly mounted on the indexing plate. The indexing plate is rotated to allow the fixed pin to slide along the arcuate slot to the left end of the arcuate slot. At this point, the second positioning hole and the movable pin are aligned. The movable pin is pushed and inserted into the second positioning hole. The drilling machine then begins drilling the first hole in the worm. The movable pin prevents the indexing plate and worm from rotating during drilling. After drilling the first hole, the movable pin is withdrawn from the second positioning hole. The indexing plate is then rotated clockwise until the fixed pin slides to the right end of the arcuate slot. At this point, the first positioning hole and the movable pin are aligned. The movable pin is pushed and inserted into the first positioning hole. The drilling machine then begins drilling the second hole in the worm.

[0009] Furthermore, in the present invention, the tooling base is provided with a sliding groove for inserting the movable latch.

[0010] Furthermore, in the present invention, the movable latch is provided with a handle, and the slide groove has an insertion groove and an exit groove for the handle to be placed therein.

[0011] Furthermore, in the present invention, the above-mentioned sliding groove is provided with a back-out prevention screw, and the front side of the back-out prevention screw is aligned with the rear side of the back-out groove.

[0012] Furthermore, in the present invention, the fixing pin includes an inserting portion and a threaded portion connected to each other, the tooling base is provided with a threaded hole matched with the threaded portion, and the inserting portion is inserted into the arc groove.

[0013] Furthermore, in the present invention, a guide flare is provided on a side of the first positioning hole and the second positioning hole facing the movable latch.

[0014] Furthermore, in the present invention, a guiding tapered end is provided on the side of the movable latch facing the indexing plate.

[0015] Furthermore, in the present invention, the dividing plate is provided with a rotating handle.

[0016] Furthermore, in the present invention, the tooling base is provided with bolts for fixing to the workbench.

[0017] Furthermore, in the present invention, the angle between the first positioning hole and the second positioning hole and the rotation center of the indexing plate is a right angle, and the central angle of the arc groove is a right angle.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] 1. High drilling efficiency: Since there is no need to disassemble and reinstall the worm when drilling two holes, you only need to rotate the indexing plate and fix it with a movable pin, which greatly reduces the preparation time for drilling the second hole and improves the overall drilling efficiency. It can meet the requirements of mass production.

[0020] 2. Simple Operation: To drill the second hole, the indexing plate needs to be rotated to the corresponding angle. Simply rotate the indexing plate so that the fixed pin slides from the left end of the arc slot to the right end. There's no need to deliberately rotate the plate to the correct angle, making operation very simple and easy for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a front view of the tooling for assisting worm indexing drilling of the present invention;

[0023] Figure 2 This is a side view of the tooling for auxiliary worm indexing drilling of the present invention (before positioning);

[0024] Figure 3 This is a side view of the tooling for auxiliary worm indexing drilling of the utility model (after positioning);

[0025] Figure 4 Schematic diagram of the movable latch of the present invention.

[0026] The marks and corresponding parts names in the accompanying drawings are: 1- tooling base, 101- slide groove, 102- insertion groove, 103- exit groove, 104- threaded hole, 2- dividing plate, 201- arc groove, 202- first positioning hole, 203- second positioning hole, 204- guide flare, 3- movable pin, 301- handle, 302- guide tapered end, 4- fixed pin, 401- insertion part, 402- threaded part, 5- rotating handle, 6- bolt. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. 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", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] Example

[0030] Combine Figures 1 to 4 As shown, a tool for assisting worm indexing drilling provided by an embodiment of the utility model, the specific structure is described as follows.

[0031] Combine Figure 1 and Figure 2 As shown, the fixture for assisting worm indexing drilling in this embodiment mainly consists of a fixture base 1 and a dividing plate 2. Bolts 6 are installed at the bottom of the fixture base 1, which fix the fixture base 1 to the workbench through the bolts 6, making it more stable and reducing shaking during drilling. The dividing plate 2 is rotatably mounted on the side of the fixture base 1, allowing it to rotate and clamp the worm.

[0032] In some implementations of this embodiment, Figure 1 As shown, the indexing plate 2 is provided with a first positioning hole 202 and a second positioning hole 203 extending through both end surfaces. The indexing plate 2 is also provided with an arcuate slot 201 extending through both end surfaces. The distance from the first positioning hole 202 to the rotation center of the indexing plate 2 is equal to the distance from the second positioning hole 203 to the rotation center of the indexing plate 2. Furthermore, the angle between the line connecting the first positioning hole 202, the rotation center of the indexing plate 2, and the second positioning hole 203 is equal to 90°.

[0033] Furthermore, the center of the circle corresponding to the arc-shaped slot 201 coincides with the rotation center of the indexing plate 2 , and the center angle of the circle corresponding to the arc-shaped slot 201 is also equal to 90°.

[0034] In some implementations of this embodiment, Figure 2 and Figure 3As shown, a threaded hole 104 is formed on the tooling base 1, and a fixing pin 4 is installed in the threaded hole 104. The fixing pin 4 comprises an insert portion 401 on the left and a threaded portion 402 on the right. The threaded portion 402 can be inserted into the threaded hole 104 to achieve fixed installation. The insert portion 401 is inserted into the arcuate groove 201. When the indexing plate 2 rotates, the insert portion 401 can slide along the arcuate groove 201.

[0035] It should be noted that the diameter of the inserting portion 401 is the same as the width of the arc-shaped groove 201 .

[0036] In some implementations of this embodiment, Figure 2 As shown, a horizontal slide groove 101 is provided on the tooling base 1, and the movable latch 3 is installed in the slide groove 101. Figure 4 As shown, the movable latch 3 is L-shaped, and the protruding portion thereof is the handle 301 of the movable latch 3 .

[0037] Further, combined Figure 2 and Figure 3 As shown, the slide 101 has two grooves extending downward, the left one is the insertion groove 102, and the right one is the exit groove 103. When the indexing plate 2 needs to be positioned, the handle 301 is held by hand to push the movable latch 3 to slide to the left (forward) so that the movable latch 3 is inserted into the first positioning hole 202 or the second positioning hole 203, and then the handle 301 is turned downward to place the handle 301 in the insertion groove 102 to prevent the movable latch 3 from exiting the first positioning hole 202 or the second positioning hole 203. When the indexing plate 2 needs to be released from the positioning, the handle 301 is held by hand to push the movable latch 3 to slide to the right (backward) so that the movable latch 3 is exited from the first positioning hole 202 or the second positioning hole 203, and then the handle 301 is turned downward to place the handle 301 in the exit groove 103 to prevent the movable latch 3 from accidentally inserting into the first positioning hole 202 or the second positioning hole 203.

[0038] It should be noted that, combined with Figure 2 and Figure 3 As shown, to prevent the movable latch 3 from exiting the chute 101 from the right side, a retaining screw is provided in the chute 101 to prevent it from exiting. The left side of the retaining screw is vertically aligned with the right side of the exit slot 103. When the movable latch 3 moves to the right, the right side of the handle 301 abuts the left side of the retaining screw. At this time, the movable latch 3 can be rotated downward to enter the exit slot 103. This design is very user-friendly and very easy to use.

[0039] Combine Figure 2 and Figure 3As shown, the guide flare 204 is positioned to the right of the first positioning hole 202. The constricted end of the guide flare 204 abuts the first positioning hole 202, and the flared end of the guide flare 204 is located on the right side of the indexing surface 2. The end of the movable latch 3 is designed as a guide tapered end 302. The diameters of the first and second positioning holes 202, 203 are the same as the diameter of the movable latch 3. The guide tapered end 302 can be inserted more easily into the first and second positioning holes 202, 203, making operation easier.

[0040] In some implementations of this embodiment, Figure 1 and Figure 2 As shown, the dividing plate 2 is provided with a rotating handle 5, which is convenient for the staff to hold and drive the dividing plate 2 to rotate.

[0041] The working principle of the auxiliary worm indexing drilling tool of the utility model is as follows:

[0042] The worm to be drilled is fixedly mounted on the indexing plate 2. The indexing plate 2 is rotated to allow the fixed pin to slide along the arc groove 201 to the left end of the arc groove 201. At this time, the second positioning hole 203 and the movable pin 3 are aligned. The movable pin 3 is pushed and inserted into the second positioning hole 203. Then the drilling machine starts to drill the first hole in the worm. The movable pin 3 can prevent the indexing plate 2 and the worm from rotating during drilling. After drilling the first hole, let the movable pin 3 exit the second positioning hole 203. Then rotate the indexing plate 2 clockwise until the fixed pin slides to the right end of the arc groove 201. At this time, the first positioning hole 202 and the movable pin 3 are aligned. The movable pin 3 is pushed and inserted into the first positioning hole 202. Then the drilling machine starts to drill the second hole in the worm.

[0043] In summary, the utility model provides a tool for assisting worm indexing drilling, which includes a tool base 1, the tool base 1 is provided with a dividing plate 2, the dividing plate 2 is provided with an arc groove 201, a first positioning hole 202 and a second positioning hole 203, the angle between the first positioning hole 202 and the second positioning hole 203 and the rotation center of the dividing plate 2 is equal to the angle between the arc groove 201, the tool base 1 is provided with a movable latch 3 inserted into the first positioning hole 202 or the second positioning hole 203, and a fixed latch inserted into the arc groove 201. The tool base 1 is provided with a slide groove 101 for inserting the movable latch 3. The movable latch 3 is provided with a handle 301, and the slide groove 101 has an insertion groove 102 and an exit groove 103 for placing the handle 301. The slide groove 101 is provided with an anti-exit stop screw, and the front side of the stop screw is aligned with the rear side of the exit groove 103. The fixed latch includes an insert portion 401 and a threaded portion 402 that are connected to each other. The tool base 1 is provided with a threaded hole 104 that cooperates with the threaded portion 402, and the insert portion 401 is inserted into the arc groove 201. The first positioning hole 202 and the second positioning hole 203 are both provided with a guide flare 204 on the side facing the movable latch 3. The movable latch 3 is provided with a guide conical end 302 on the side facing the dividing plate 2. The dividing plate 2 is provided with a rotating handle 5. The tool base 1 is provided with a bolt 6 fixed to the workbench. The angle between the first positioning hole 202 and the second positioning hole 203 and the rotation center of the dividing plate 2 is a right angle, and the angle between the arc groove 201 is a right angle. Therefore, the tooling for auxiliary worm indexing drilling of the utility model has the beneficial effects of simple operation and high processing efficiency, and can meet the requirements of mass production.

[0044] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A tool for assisting worm indexing drilling, characterized in that: The invention comprises a tooling base (1), wherein the tooling base (1) is provided with a dividing plate (2), wherein the dividing plate (2) is provided with an arcuate groove (201), a first positioning hole (202) and a second positioning hole (203), wherein the angle between the first positioning hole (202) and the second positioning hole (203) relative to the rotation center of the dividing plate (2) is equal to the central angle of the arcuate groove (201), and the tooling base (1) is provided with a movable pin (3) inserted into the first positioning hole (202) or the second positioning hole (203), and a fixed pin (4) inserted into the arcuate groove (201).

2. The auxiliary worm indexing drilling tool according to claim 1, characterized in that: The tooling base (1) is provided with a sliding groove (101) for the movable latch (3) to be inserted.

3. The auxiliary worm indexing drilling tool according to claim 2, characterized in that: The movable latch (3) is provided with a handle (301), and the sliding groove (101) has an insertion groove (102) and an exit groove (103) for the handle (301) to be placed therein.

4. The auxiliary worm indexing drilling tool according to claim 3, characterized in that: The sliding groove (101) is provided with an anti-withdrawal screw, and the front side of the anti-withdrawal screw is aligned with the rear side of the withdrawal groove (103).

5. The auxiliary worm indexing drilling tool according to claim 1, characterized in that: The fixing pin (4) comprises an inserting portion (401) and a threaded portion (402) connected to each other, the tooling base (1) is provided with a threaded hole (104) cooperating with the threaded portion (402), and the inserting portion (401) is inserted into the arc-shaped groove (201).

6. The auxiliary worm indexing drilling tool according to claim 1, characterized in that: The first positioning hole (202) and the second positioning hole (203) are both provided with a guide expansion opening (204) on one side facing the movable latch (3).

7. The auxiliary worm indexing drilling tool according to claim 6, characterized in that: A guiding tapered end (302) is provided on the side of the movable latch (3) facing the indexing plate (2).

8. The auxiliary worm indexing drilling tool according to claim 1, characterized in that: The indexing plate (2) is provided with a rotating handle (5).

9. The auxiliary worm indexing drilling tool according to claim 1, characterized in that: The tooling base (1) is provided with bolts (6) for fixing to the workbench.

10. The auxiliary worm indexing drilling tool according to claim 1, characterized in that: The angle between the first positioning hole (202) and the second positioning hole (203) relative to the rotation center of the indexing plate (2) is a right angle, and the central angle of the arc groove (201) is a right angle.

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