Tool for punching hole in end face of taper hole

Abstract

The utility model relates to the technical field of machining, and provides a tool for punching on the end face of a taper hole, which comprises a base, a T-shaped groove is arranged on the outer wall of the top end of the base, a connecting rod is connected with the inner wall of the T-shaped groove in a clamping way, a hoisting workpiece body is sleeved on the outer wall of the connecting rod, a main body is arranged on the outer wall of the top end of the hoisting workpiece body, and the main body is connected with the T-shaped groove. A sleeve film is fixedly connected to the outer wall of the periphery of the main body, the bottom end of the sleeve film is attached to the top end of the hoisting workpiece body, a pressing device is arranged at the upper end of the main body, the inner wall of the center of the pressing device is attached to the outer wall of a connecting rod, and a locking device is in threaded connection with the outer wall of the top end of the connecting rod. The component is simple in structure and high in practicability, the size of the main body and the size of the die sleeve can be readjusted according to different workpieces, the component can be used on a common drilling machine, the workpieces do not need to be aligned, and therefore the use range of the component is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a tool for drilling holes on the end surface of a tapered hole. Background Art

[0002] Machining refers to the process of changing the shape, size or performance of a workpiece through a mechanical device. It can be divided into cutting and pressure processing according to the difference in processing methods.

[0003] In the field of mechanical processing, it is often necessary to perform drilling and tapping operations on the cross-section of workpieces with irregular slopes. During the processing, the position accuracy of the threaded holes and tapered holes of this type of tooling is required to be high. Each processing requires a dial indicator to align the tapered hole, which requires high skills of the operator and is time-consuming and labor-intensive. Therefore, it can only be completed on a CNC machining center, which seriously occupies the production capacity of the machining center. At the same time, the threaded hole diameter is large. When processing on the machining center, the spindle load is too large, which can easily cause the spindle to lock and the tool to be damaged. In severe cases, the spindle accuracy is affected. In addition, when the machining center is on a high workbench, there are safety hazards during hoisting. Hoisting can easily cause bumps on the workpiece, which can even cause the workpiece to be scrapped. Utility Model Content

[0004] The utility model proposes a tool for drilling a hole on the end face of a tapered hole, which solves the problems in the related technology of too high processing requirements, low processing accuracy, and large threaded hole diameter. When processing in a machining center, the spindle load is too large, which can easily cause the spindle to lock and the tool to be damaged, thereby seriously affecting the accuracy of the spindle. At the same time, when the workbench of the machining center is high, there are safety hazards in hoisting, which can easily collide with the workpiece, thereby causing the workpiece to be scrapped.

[0005] The technical solution of the utility model is as follows: a tool for drilling a hole on the end face of a tapered hole, comprising: a base, a T-shaped slot is provided on the top outer wall of the base, a connecting rod is snap-connected to the inner wall of the T-shaped slot, the outer wall of the connecting rod is sleeved with a lifting workpiece body, the top outer wall of the lifting workpiece body is provided with a main body, the outer walls around the main body are fixedly connected with a sleeve, the bottom end of the sleeve is fitted with the top of the lifting workpiece body, a clamping device is provided on the upper end of the main body, the inner wall at the center of the clamping device is fitted with the outer wall of the connecting rod, the top outer wall of the connecting rod is threadedly connected with a locking device, and the bottom end of the locking device is fitted with the top outer wall of the clamping device.

[0006] Preferably, the left and right ends of the connecting rod are symmetrically threadedly connected with fixing screws, and the bottom ends of the two fixing screws are threadedly connected to the inner wall of the T-slot.

[0007] Preferably, the outer wall of the top end of the hoisting workpiece body has a plurality of limiting holes in a circular array, and the plurality of limiting holes are arranged in a circular array at the top end of the hoisting workpiece body.

[0008] Preferably, a plurality of limiting rods are fixedly connected to the bottom end of the sleeve, and the plurality of limiting rods are arranged in a circular array at the bottom end of the sleeve.

[0009] Preferably, the number of the limiting rods is consistent with that of the limiting holes, and they correspond one to one.

[0010] Preferably, a small hole is opened on the inner wall of the main body, and the small hole is sleeve-connected to the outer wall of the connecting rod.

[0011] The working principle and beneficial effects of the utility model are:

[0012] 1. In the utility model, the component has a simple structure and strong practicality. The size of the main body and the die sleeve can be readjusted according to different workpieces. It can be used on an ordinary drilling machine without aligning the workpiece, thereby expanding the scope of use of the component, improving the practical efficiency of the component, improving the processing efficiency, and reducing the processing cost. It is worthy of promotion;

[0013] 2. In the utility model, the height of the base of the component is relatively low, which reduces the risk of lifting, avoids the loss of the workpiece due to bumps, releases the production capacity of the machining center, extends the service life of the workpiece, and improves the use efficiency of the workpiece, thereby improving the drilling accuracy of the drilling machine, reducing the phenomenon of workpiece scrapping, and further reducing the capital cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the unfolded structure of some parts proposed in the utility model when viewed from above;

[0017] Figure 3 This is a schematic diagram of the planar structure of the hoisting workpiece proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the lifting workpiece proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of a hoisting workpiece proposed by the utility model;

[0020] Figure 6 The utility model proposed Figure 1 The enlarged structural diagram at A in the middle;

[0021] In the figure: 1. Base; 2. Main body; 3. Film sleeve; 4. Clamping device; 5. Connecting rod; 6. Locking device; 7. Lifting workpiece; 8. Limit rod; 9. Limit hole; 10. Fixing screw; 11. T-slot. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The present application embodiment discloses a tool for drilling a hole on the end surface of a tapered hole, please refer to Figure 1-Figure 6A tool for drilling a hole on the end surface of a tapered hole, comprising: a base 1, a T-shaped slot 11 is provided on the top outer wall of the base 1, a connecting rod 5 is connected to the inner wall of the T-shaped slot 11, a hoisting workpiece body 7 is sleeved on the outer wall of the connecting rod 5, a main body 2 is provided on the top outer wall of the hoisting workpiece body 7, a sleeve film 3 is fixedly connected to the outer wall of the main body 2, the bottom end of the sleeve film 3 is in contact with the top of the hoisting workpiece body 7, a clamping device 4 is provided on the upper end of the main body 2, the inner wall at the center of the clamping device 4 is in contact with the outer wall of the connecting rod 5, and the top outer wall of the connecting rod 5 is in contact with the outer wall of the connecting rod 5. The wall is threadedly connected with a locking device 6, and the bottom end of the locking device 6 fits with the top outer wall of the clamping device 4. The left and right ends of the connecting rod 5 are symmetrically threaded with fixing screws 10. The base 1 calculates the appropriate height according to ergonomics, and the hollow design reduces the weight while ensuring strength. It is integrally formed by a casting process, and the upper and lower planes are finely processed to ensure parallelism. A T-slot is processed in the middle for connecting the pull rod. The main body 2 is made of tool steel, and the shape is processed according to the process requirements. A weight-reducing hole is processed in the middle to reduce the weight and facilitate insertion. The connecting rod and the conical surface are carburized to increase durability. The guide hole is processed as required. The sleeve 3 calculates the inner and outer diameters of the mold sleeve according to the guide hole and the aperture of the workpiece to be processed. The mold steel is used to roughly process the outer shape and inner hole, and the whole is quenched. The outer circle size is processed according to the size accuracy of the guide hole. The interference fit is used to ensure a firm installation. The inner hole is finely processed according to the size of the tool used. The clearance fit is used to ensure that the tool can pass smoothly without shaking. The clamping device 4 is cut and formed with wear-resistant steel at one time, sharp corners and burrs are polished, and the center position is drilled for convenience. Insert the connecting rod, the connecting rod 5 is selected according to the size of the T-slot of the base, and the appropriate quenched and tempered round steel is selected. The bottom is processed in place according to the size of the T-slot with clearance fit, and the upper part is processed into threads according to the national standard, and the whole is carburized to improve the surface hardness. The locking device 6 is selected according to the size of the connecting rod thread. The locking device 6 is selected according to the size of the connecting rod thread. The component includes six main parts: the base 1, the main body 2, the sleeve 3, the connecting rod 5, the clamping device 4, and the locking device 6. The sleeve 3 is evenly installed on the main body 2 according to the technical requirements, and the main body 2 and the hoisting workpiece body 7 match the angle of the tapered hole. When using, first fix the base 1, hoist the hoisting workpiece body 7 to the base 1, the main body 2 is placed horizontally on the hoisting workpiece body 7, insert the connecting rod 5, connect it to the base 1, the clamping device 4 is inserted into the connecting rod, and placed horizontally on the main body, and the base 1, the hoisting workpiece body 7, the main body 2, and the clamping device 4 are fastened together through the locking device 6. At this time, it can be used on an ordinary drilling machine, and the tool can directly drill holes on the workpiece through a fixed die sleeve.

[0024] See also Figure 2-Figure 6The bottom ends of the two fixing screws 10 are threadedly connected to the inner wall of the T-slot 11. The top outer wall of the lifting workpiece body 7 has a plurality of limiting holes 9 in a circular array. The plurality of limiting holes 9 are circularly arrayed at the top of the lifting workpiece body 7. The bottom end of the sleeve 3 is fixedly connected with a plurality of limiting rods 8. The plurality of limiting rods 8 are circularly arrayed at the bottom end of the sleeve 3. The number of limiting rods 8 and the limiting holes 9 are the same and correspond one to one. The inner wall of the main body 2 is provided with small holes, and the small holes are sleeve-connected to the outer wall of the connecting rod 5. The fixing screw 10 fixes the T-slot 11 and the connecting rod 5 together to ensure that the connecting rod 5 is stably located at the center of the T-slot 11. The limiting rod 8 and the inner wall of the limiting hole 9 are snap-fitted. The snap-fitting of the limiting rod 8 and the limiting hole 9 ensures that the sleeve 3 and the lifting workpiece body 7 are stably placed together, thereby ensuring that the main body 2 is aligned with the center of the lifting workpiece body 7.

[0025] Working principle and use process: When using, first fix the base 1 and the bed of the radial drill with bolts, then insert the bottom of the connecting rod 5 downward into the T-slot 11 and move it to the middle position of the base 1, and then fix the connecting rod 5 and the center of the T-slot 11 together through the fixing screw 10, slowly move the hoisted workpiece to the upper end of the connecting rod 5, and then put the inner hole of the hoisted workpiece body 7 on the outside of the connecting rod 5, move the hoisted workpiece body 7 downward along the direction of the connecting rod 5 to the upper end of the base 1, adjust the position to ensure that the center of the inner hole of the hoisted workpiece body 7 coincides with the center of the connecting rod 5, and then put the combination of the main body 2 and the mold sleeve 3 on the connecting rod 5. The outside of the connecting rod 5, move the combination of the main body 2 and the sleeve film 3 downward along the direction of the connecting rod 5 to the upper end of the hoisting workpiece body 7, and then sleeve the clamping device 4 on the outside of the connecting rod 5, move the clamping device 4 downward along the connecting rod 5 to the upper end of the main body 2, avoiding the position of the mold sleeve 3, and then sleeve the locking device 6 on the outside of the top end of the connecting rod 5, rotate the locking device 6 by threading so that the bottom end of the locking device 6 is in close contact with the top end of the clamping device 2, and then tighten it with a wrench to complete the installation. During processing, the tool is positioned to the workpiece surface through the mold sleeve 3. Due to the restriction of the mold sleeve 3, the tool will not swing, ensuring the processing accuracy and position requirements.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for drilling a hole on the end surface of a tapered hole, comprising: The base (1) is characterized in that a T-shaped groove (11) is provided on the top outer wall of the base (1), and a connecting rod (5) is snap-connected to the inner wall of the T-shaped groove (11), and the outer wall of the connecting rod (5) is sleeved with a lifting workpiece body (7), and the top outer wall of the lifting workpiece body (7) is provided with a main body (2), and the outer walls around the main body (2) are fixedly connected with a sleeve (3), and the bottom end of the sleeve (3) is in contact with the top of the lifting workpiece body (7), and a clamping device (4) is provided at the upper end of the main body (2), and the inner wall at the center of the clamping device (4) is in contact with the outer wall of the connecting rod (5), and the top outer wall of the connecting rod (5) is threadedly connected with a locking device (6), and the bottom end of the locking device (6) is in contact with the top outer wall of the clamping device (4).

2. A tool for drilling a hole on the end surface of a tapered hole according to claim 1, characterized in that: The left and right ends of the connecting rod (5) are symmetrically threadedly connected with fixing screws (10), and the bottom ends of the two fixing screws (10) are both threadedly connected to the inner wall of the T-shaped slot (11).

3. A tool for drilling a hole on the end surface of a tapered hole according to claim 1, characterized in that: The top outer wall of the hoisting workpiece body (7) has a plurality of limiting holes (9) in a circular array, and the plurality of limiting holes (9) are arranged in a circular array at the top of the hoisting workpiece body (7).

4. A tool for drilling a hole on the end surface of a tapered hole according to claim 3, characterized in that: The bottom end of the sleeve (3) is fixedly connected to a plurality of limiting rods (8), and the plurality of limiting rods (8) are arranged in a circular array at the bottom end of the sleeve (3).

5. A tool for drilling a hole on the end surface of a tapered hole according to claim 4, characterized in that: The number of the limiting rods (8) and the limiting holes (9) are consistent and correspond one to one.

6. A tool for drilling a hole on the end surface of a tapered hole according to claim 1, characterized in that: The inner wall of the main body (2) is provided with a small hole, and the small hole is sleeve-connected to the outer wall of the connecting rod (5).

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