Balance shaft driven gear drilling tool

Abstract

The utility model relates to a tool clamp, in particular to a balance shaft driven gear drilling tool. Comprising a bottom plate, a mandrel, a drill plate, a supporting lower pad and a bearing seat, the bearing seat is fixedly arranged on the bottom plate, the mandrel comprises a rotating shaft section and a shaft body section, the rotating shaft section is vertically arranged in the bearing seat and rotationally connected with the bearing seat, a containing hole is formed in the center of the bottom plate, and the rotating shaft section extends out of the bearing seat and is arranged in the containing hole; the lower supporting pad is fixedly arranged on the lower portion of the shaft body section in a sleeving mode, a workpiece to be machined is arranged on the shaft body section in a sleeving mode and placed on the upper surface of the lower supporting pad, the drill plate is arranged on the upper portion of the shaft body section in a sleeving mode and covers the workpiece to be machined, and a plurality of plate holes are formed in the drill plate. The balance shaft driven gear drilling tool has the advantages that multiple holes can be drilled rapidly, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of machining, in particular to a drilling tool for a balance shaft driven gear Background Technique

[0002] The balance shaft driven gear is one of the important transmission components. As Figure 7 shown, 6 through holes 2 are machined on the gear surface at equal angles. In the prior art, most of the fixed drilling equipment is used. After the gear workpiece is clamped by the fixed fixture, after the drilling equipment processes one through hole 2, the workpiece is disassembled from the fixture and then positioned and installed to process the next through hole 2. This not only requires repeated positioning each time, but also requires multiple installation and disassembly operations, resulting in low production efficiency

[0003] Replacing with a drilling robot or robotic arm that can automatically rotate and position can quickly complete the drilling operation, but new equipment needs to be invested, greatly increasing the production cost Content of the Utility Model

[0004] The utility model aims to provide a drilling tool for a balance shaft driven gear that can quickly and semi-automatically perform multiple drilling operations

[0005] A drilling tool for a balance shaft driven gear in this solution includes a bottom plate, a core shaft, a drill template, a supporting lower pad and a bearing seat. The bearing seat is fixedly arranged on the bottom plate. The core shaft includes a rotating shaft section and a shaft body section. The rotating shaft section is vertically arranged in the bearing seat and is rotationally connected. A receiving hole is provided at the center of the bottom plate. The rotating shaft section extends out of the bearing seat and is arranged in the receiving hole. The supporting lower pad is fixedly sleeved on the lower part of the shaft body section. The workpiece to be processed is sleeved on the shaft body section and placed on the upper surface of the supporting lower pad. The drill template is sleeved on the upper part of the shaft body section and covers the workpiece to be processed. A plurality of template holes are provided on the drill template

[0006] The exposed end of the rotating shaft section is used to connect the driving device. The driving device drives the core shaft to rotate. After the drilling equipment drills a hole in the workpiece to be processed, the driving device rotates the core shaft, and the workpiece to be processed also rotates to the next drilling station to process the second hole, and so on until all the holes are processed

[0007] Further, the cross section of the supporting lower pad is a T-shaped structure, including a lower pad supporting platform and a supporting sleeve arranged below the lower pad supporting platform. A through hole corresponding to the template hole is provided on the lower pad supporting platform. Both the lower pad supporting platform and the supporting sleeve are in interference fit with the shaft body section

[0008] Further, a threaded section is provided at the top of the shaft body section, and a locking nut is provided on the threaded section

[0009] Further, an opening pressure plate is provided between the drill template and the locking nut.

[0010] Further, a balance turntable is provided between the rotating shaft section and the shaft body section. The balance turntable is horizontally arranged. The lower surface of the balance turntable is in sliding contact with the bearing seat. The rotating shaft section is rotatably arranged in the shaft hole at the center of the bearing seat, and a mandrel bearing is provided on the side wall of the shaft hole.

[0011] Further, a turntable bearing is provided on the upper surface of the bearing seat, and the lower table surface of the balance turntable is arranged on the turntable bearing.

[0012] Further, the opening pressure plate is a U-shaped structure with one end open.

[0013] Further, 6 template holes are provided on the drill template, and the 6 template holes are equally angularly distributed on the same circumference.

[0014] Further, the rotating shaft section, the shaft body section, the threaded section and the balance turntable are of an integrally formed structure.

[0015] The advantages of the present utility model are as follows: This tooling is paired with a driving device, which can automatically rotate the workpiece to be processed to the processing station of the drilling equipment, automatically position according to the setting, can improve the cost rate, and can realize semi-automatic processing production by being paired with a transmission drilling equipment, thereby improving the production efficiency and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of a balanced shaft driven gear drilling tooling of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the drill template in the present utility model;

[0018] Figure 3 is a structural schematic diagram of the mandrel in the present utility model;

[0019] Figure 4 is a structural schematic diagram of the supporting lower pad in the present utility model;

[0020] Figure 5 is a structural schematic diagram of the bearing seat in the present utility model;

[0021] Figure 6 is a structural schematic diagram of the opening pressure plate in the present utility model;

[0022] Figure 7 is a structural schematic diagram of the workpiece to be processed in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described in detail below with reference to the drawings and specific embodiments:

[0024] According to Figures 1 to 7 shown in the figure, a drilling tool for a balance shaft driven gear includes a bottom plate 100, a mandrel 200, a drill template 300, a support lower pad 400 and a bearing seat 700. The bearing seat 700 is fixedly arranged on the bottom plate 100 by screws, and the mandrel 200 is vertically arranged in the bearing seat 700.

[0025] Specifically, see Figure 1 and Figure 3 , the mandrel 200 includes a rotating shaft section 201 and a shaft body section 202. The rotating shaft section 201 is vertically arranged and rotatably connected in the bearing seat 700. A receiving hole 101 is opened at the center of the bottom plate 100, and the receiving hole 101 is a through hole. The end of the rotating shaft section 201 extends out of the bearing seat 700 and is arranged in the receiving hole 101. The exposed end of the rotating shaft section 201 is used to connect a driving device, and the driving device drives the mandrel 200 to rotate. Specifically, the driving device can be selected as a motor.

[0026] See Figure 1 and Figure 2 , the support lower pad 400 is interference-fitted and sleeved on the lower part of the shaft body section 202. The workpiece to be processed 1 is movably sleeved on the shaft body section 202 and placed on the upper surface of the support lower pad 400. The drill template 300 is movably sleeved on the upper part of the shaft body section 202 and covers the workpiece to be processed 1. A plurality of template holes 301 are opened on the drill template 300, and the number of the template holes 301 is set according to the number of holes required on the workpiece to be processed 1. In this embodiment, there are 6 template holes 301 on the drill template 300, and the 6 template holes 301 are equally angularly distributed on the same circumference.

[0027] After the drilling equipment drills a hole in the workpiece to be processed 1, the driving device rotates the mandrel 200, and the workpiece to be processed 1 also rotates to the next drilling station to process the second hole, and so on until all the holes are processed.

[0028] See Figure 1 and Figure 4 , as a further improvement of this embodiment, the cross section of the support lower pad 400 is a T-shaped structure, including a lower pad support platform 401 and a support sleeve 402 which is an integral structure arranged below the lower pad support platform 401. A through hole 403 corresponding to the template hole 301 is arranged on the lower pad support platform 401. Both the lower pad support platform 401 and the support sleeve 402 are interference-fitted with the shaft body section 202. The lower pad support platform 401 is used to support the workpiece to be processed 1, and the support sleeve 402 is provided to increase the interference-fitting area between the whole support lower pad 400 and the mandrel 200 to ensure stability.

[0029] See Figure 1 and Figure 3, as a further improvement of this embodiment, a threaded section 203 is provided at the top of the shaft body section 202. A locking nut 500 is provided on the threaded section 203. The drill template 300 and the workpiece 1 to be machined are fixed to the support lower pad 400 by the locking nut 500.

[0030] See details Figure 1 and Figure 6 , as a further improvement of this embodiment, an opening pressure plate 600 is provided between the drill template 300 and the locking nut 500. In this embodiment, the opening pressure plate 600 is a U-shaped structure with one end open. The opening pressure plate 600 increases the fixed area of the downward pressure, making the clamping of this tooling more stable.

[0031] See details Figure 1 and Figure 3 , as a further improvement of this embodiment, a balance turntable 204 is provided between the rotating shaft section 201 and the shaft body section 202. The balance turntable 204 is horizontally arranged. The lower surface of the balance turntable 204 is in sliding contact with the bearing seat 700. The balance turntable 204 can improve the dynamic balance of the mandrel 200 during rotation and can also ensure the static stability of the mandrel during drilling. The rotating shaft section 201 is rotatably arranged in the shaft hole at the center of the bearing seat 700. A mandrel bearing 701 is provided on the side wall of the shaft hole to ensure that the mandrel 200 rotates flexibly without jamming or sticking.

[0032] See details Figure 1 , as a further improvement of this embodiment, a turntable bearing 702 is provided on the upper surface of the bearing seat 700. The lower table surface of the balance turntable 204 is arranged on the turntable bearing 702, further ensuring that the mandrel 200 rotates flexibly without jamming or sticking.

[0033] See details Figure 3 , as a further improvement of this embodiment, the rotating shaft section 201, the shaft body section 202, the threaded section 203 and the balance turntable 204 are of an integrally formed structure.

[0034] The above are only the embodiments of the present invention. Common knowledge such as specific structures and characteristics known in the solutions is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A drilling tool for a driven gear of a balance shaft, characterized in that: The invention comprises a base plate (100), a core shaft (200), a drilling template (300), a support lower pad (400) and a bearing seat (700), wherein the bearing seat (700) is fixedly arranged on the base plate (100), the core shaft (200) comprises a rotating shaft section (201) and a shaft body section (202), the rotating shaft section (201) is vertically arranged in the bearing seat (700) for rotational connection, a receiving hole (101) is provided at the center of the base plate (100), and the rotating shaft section (201) is provided with a receiving hole (101) at the center of the base plate (100). ) extends out of the bearing seat (700) and is arranged in the accommodating hole (101); the supporting lower pad (400) is fixedly sleeved on the lower part of the shaft body section (202), the workpiece (1) to be processed is sleeved on the shaft body section (202) and placed on the upper surface of the supporting lower pad (400), the drilling template (300) is sleeved on the upper part of the shaft body section (202) and covers the workpiece (1) to be processed, and a plurality of template holes (301) are opened on the drilling template (300).

2. The balancing shaft driven gear drilling tool according to claim 1, characterized in that: The supporting lower pad (400) has a T-shaped cross-section, comprising a lower pad supporting platform (401) and a supporting sleeve (402) arranged below the lower pad supporting platform (401); the lower pad supporting platform (401) is provided with a through hole (403) arranged corresponding to the template hole (301); the lower pad supporting platform (401) and the supporting sleeve (402) are both interference fit with the shaft section (202).

3. The balancing shaft driven gear drilling tool according to claim 1, characterized in that: A threaded section (203) is provided at the top end of the shaft section (202), and a locking nut (500) is provided on the threaded section (203).

4. The balancing shaft driven gear drilling tool according to claim 3, characterized in that: An open pressing plate (600) is provided between the drilling template (300) and the locking nut (500).

5. A balancing shaft driven gear drilling tool according to any one of claims 1 to 4, characterized in that: A balancing turntable (204) is provided between the rotating shaft section (201) and the shaft section (202); the balancing turntable (204) is arranged horizontally; the lower surface of the balancing turntable (204) is in sliding contact with the bearing seat (700); the rotating shaft section (201) is rotatably arranged in an axial hole at the center of the bearing seat (700); and a core shaft bearing (701) is provided on the side wall of the axial hole.

6. The drilling tool for the driven gear of the balance shaft according to claim 5, characterized in that: A turntable bearing (702) is provided on the upper surface of the bearing seat (700), and the lower surface of the balancing turntable (204) is provided on the turntable bearing (702).

7. The drilling tool for the driven gear of the balance shaft according to claim 4, characterized in that: The open pressing plate (600) is a U-shaped structure with one end open.

8. A balancing shaft driven gear drilling tool according to any one of claims 1 to 4, characterized in that: The drilling template (300) is provided with six template holes (301), and the six template holes (301) are distributed at equal angles on the same circumference.

9. The drilling tool for the driven gear of the balance shaft according to claim 5, characterized in that: The rotating shaft section (201), the shaft body section (202), the threaded section (203) and the balancing turntable (204) are an integrally formed structure.

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