Tool for workpiece drilling

Abstract

The utility model discloses a tool for workpiece drilling, and belongs to the technical field of drilling positioning tools. The positioning device comprises a positioning seat, the positioning seat is provided with a machining face and a positioning face, the positioning seat is provided with a positioning hole allowing the machining end of a workpiece to penetrate through, the positioning hole is communicated with the machining face and the positioning face, the positioning face can abut against the end face of the workpiece, and the positioning face is provided with a positioning pin used for positioning the workpiece. The tool further comprises a pressing device used for pressing the workpiece to the positioning face. The workpiece can be limited in the radial direction, the workpiece can be limited in the axial direction through cooperation of the positioning base and the pressing device, and therefore under the combined action of the positioning base and the pressing device, the workpiece can be firmly fixed to the positioning base for machining.

Description

Technical Field

[0001] The present application relates to the technical field of drilling positioning tooling, and in particular to a tooling for drilling a workpiece. Background Art

[0002] Boring is a metal cutting process used to enlarge a pre-drilled or cast hole to improve its dimensional accuracy and surface finish. This process is typically performed on a boring mill, machining center, or lathe, using a single-edge or multi-edge boring tool.

[0003] In related technology, patent publication number CN106466728A discloses a piston boring machine comprising a frame equipped with two laterally distributed and laterally movable tool holders and a workpiece securing mechanism located between the two tool holders. The tool holders are connected to boring tools facing the workpiece securing mechanism, with the boring tools on the two tool holders being coaxial. The workpiece securing mechanism comprises a workpiece support and a pressing cylinder located above the tool support. The present invention provides a piston boring machine capable of simultaneously boring both sides of a piston, addressing the issues of low production efficiency and poor coaxiality of the holes on both sides resulting from boring the piston in two steps.

[0004] Regarding the above-mentioned related technologies, the fixation of the workpiece mainly relies on pressing the workpiece onto the workpiece support seat from top to bottom by a pressing cylinder. This fixing method causes the workpiece to vibrate and deviate due to the chip force of boring, affecting the boring accuracy. Utility Model Content

[0005] In order to help improve the stability of workpiece positioning, the present application provides a tool for drilling a workpiece.

[0006] The present application provides a workpiece drilling tool that adopts the following technical solution:

[0007] A tool for drilling a workpiece, comprising a positioning seat, the positioning seat being provided with a machining surface and a positioning surface, the positioning seat being provided with a positioning hole for the machining end of the workpiece to pass through, the positioning hole connecting the machining surface and the positioning surface, the positioning surface being capable of abutting against the end face of the workpiece, the positioning surface being provided with a positioning pin for positioning the workpiece, and the tool further comprising a clamping device for pressing the workpiece toward the positioning surface.

[0008] By adopting the above technical solution, the positioning column can limit the radial position of the workpiece, and the positioning seat and the clamping device can limit the workpiece axially. Therefore, the combined action of the two can firmly fix the workpiece on the positioning seat for processing. In addition, the positioning seat has a processing surface and a positioning surface, which can also separate the processing debris and improve the efficiency of debris recovery.

[0009] Optionally, the clamping device includes a first mounting column, a connecting rod, a clamping member, a second mounting column and a locking member, the first mounting column and the second mounting column are fixed on the positioning surface, one end of the connecting rod is hinged to the first mounting column, the clamping member is fixed on the connecting rod and can move closer to or away from the workpiece with the connecting rod, and the locking member is used to lock the second mounting column and the end of the connecting rod.

[0010] By adopting the above technical solution, the workpiece drilling tool can achieve rapid positioning and fixation of the workpiece, improve the accuracy and stability during the drilling process, and at the same time facilitate the disassembly and assembly of the workpiece, thereby improving processing efficiency.

[0011] Optionally, the pressing member includes an abutment nut threadedly connected to the side surface of the connecting rod, and the end surface of the abutment nut can abut against the workpiece.

[0012] By adopting the above technical solution, the workpiece can be accurately and firmly pressed on the positioning surface, improving the processing accuracy. Specifically, the threaded connection method facilitates the adjustment of the position of the abutment nut to accommodate workpieces of different sizes, enhancing the versatility and adaptability of the device.

[0013] Optionally, the rotation axis of the abutment nut can be perpendicular to the positioning surface.

[0014] By adopting the above technical solution, the position of the tightening nut can be fine-tuned, thereby adjusting the tightening force and improving positioning accuracy and stability.

[0015] Optionally, a clearance groove is provided at the end of the connecting rod, and the locking member includes a locking screw and a locking wheel. One end of the locking screw is hinged to the second mounting column, and the locking screw can be inserted into the clearance groove. The locking wheel is threadedly connected to the locking screw and the locking wheel and the end face of the second mounting column can clamp one end of the connecting rod.

[0016] By adopting the above technical solution, the convenience of disassembly and assembly is improved, the effective locking of the connecting rod is achieved, and the clamping stability of the workpiece is improved.

[0017] Optionally, a reinforcement portion is provided at one end of the connecting rod away from the first mounting column.

[0018] By adopting the above technical solution, the structural strength of the connecting rod can be enhanced, the risk of deformation during the pressing process can be reduced, and the positioning accuracy and stability when drilling the workpiece can be improved.

[0019] Optionally, the clamping device is a pneumatic cylinder, a hydraulic cylinder or an electric push rod, and the output extension direction of the clamping device is perpendicular to the positioning surface.

[0020] By adopting the above technical solution, the position of the workpiece is ensured to be accurate and stable when it is pressed, thereby improving the drilling accuracy.

[0021] Optionally, the positioning pin is detachably connected to the positioning seat.

[0022] By adopting the above technical solution, the positioning pins can be quickly replaced or adjusted according to workpieces of different specifications, thereby improving the flexibility and adaptability of the tooling.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The positioning column can be used to limit the radial position of the workpiece, and the cooperation of the positioning seat and the clamping device can be used to limit the axial position of the workpiece. Therefore, under the combined action of the two, the workpiece can be firmly fixed on the positioning seat for processing.

[0025] 2. The positioning seat is equipped with a processing surface and a positioning surface, which can also separate the processing debris and improve the efficiency of debris recovery.

[0026] 3. The clamping piece can move closer to or away from the workpiece along with the connecting rod, which facilitates the rapid clamping of the workpiece and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the clamping device in the embodiment of the present application in the open state.

[0028] Figure 2 It is a schematic diagram of the clamping device in the embodiment of the present application in a locked state.

[0029] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0030] Description of reference numerals:

[0031] 100. Workpiece; 10. Positioning seat; 11. Processing surface; 12. Positioning surface; 20. Positioning pin; 30. Clamping device; 31. First mounting column; 32. Connecting rod; 321. Gap groove; 322. Reinforcement portion; 33. Clamping member; 34. Second mounting column; 35. Locking member; 351. Locking screw; 352. Locking wheel. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] Reference Figure 1 and Figure 2The embodiment of the present application provides a tool for drilling a workpiece, including a positioning seat 10, which is provided with a machining surface 11 and a positioning surface 12. The positioning seat 10 is provided with a positioning hole for the machining end of the workpiece 100 to pass through, and the positioning hole connects the machining surface 11 and the positioning surface 12. The positioning surface 12 can abut against the end surface of the workpiece 100. The positioning surface 12 is provided with a positioning pin 20 for positioning the workpiece 100. The tool also includes a clamping device 30 for pressing the workpiece 100 toward the positioning surface 12.

[0034] Specifically, the locating seat 10 is a T-shaped locating seat that can be fixed to the machine tool by bolts. A locating hole is provided in the middle of the locating seat 10, and the center line of the locating hole is parallel to the axis of the machine tool boring tool, so that when the boring tool moves along the axis, it can bore the center of the workpiece 100.

[0035] The locating pin 20 is used to position the workpiece 100. In this embodiment, the locating pin 20 penetrates the workpiece 100 to position the workpiece 100. The locating pin 20 is detachably connected to the locating seat 10, for example, by a threaded connection or a plug-in connection. Preferably, the locating pin 20 is made of cemented carbide or high-carbon steel to ensure that it has sufficient strength to withstand the cutting forces during machining. The shape of the locating pin 20 can be designed according to the specific type of workpiece 100, for example, it can be cylindrical, polygonal, or other shapes. In addition, multiple locating pins 20 can be provided, and can be precisely adjusted according to the specific size and shape of the workpiece 100 to better achieve the positioning of the workpiece 100.

[0036] Reference Figure 2 and Figure 3 In one embodiment, the clamping device 30 includes a first mounting column 31, a connecting rod 32, a clamping member 33, a second mounting column 34 and a locking member 35. The first mounting column 31 and the second mounting column 34 are vertically fixed on the positioning surface 12. One end of the connecting rod 32 is hinged to the first mounting column 31. The clamping member 33 is fixed to the connecting rod 32 and can move with the connecting rod 32 to approach or move away from the workpiece 100. The locking member 35 is used to lock the second mounting column 34 and the end of the connecting rod 32.

[0037] Specifically, the first mounting post 31 and the second mounting post 34 can be fixed to the positioning surface 12 by means of bolts or welding. Preferably, the heights of the first mounting post 31 and the second mounting post 34 are comparable, so that the structure of the entire clamping device 30 is more stable. The connecting rod 32 can be made of high-strength alloy steel to ensure that it has sufficient strength to prevent deformation due to external forces. The clamping member 33 is in the form of an abutment nut, which is threadedly connected to the connecting rod 32. The rotation axis of the abutment nut can be perpendicular to the positioning surface 12, and the end face of the abutment nut can abut against the workpiece 100. By rotating the abutment nut, the degree of contact between it and the workpiece 100 is adjusted to further improve the fixing effect. In other embodiments, the clamping member 33 can also be a clamping block, etc.

[0038] The end of the connecting rod 32 defines a clearance groove 321. The locking member 35 includes a locking screw 351 and a locking wheel 352. One end of the locking screw 351 is hingedly connected to the second mounting post 34. The locking screw 351 can be inserted into the clearance groove 321 defined in the end of the connecting rod 32. The locking wheel 352 is threadedly connected to the locking screw 351. The locking wheel 352 and the end surface of the second mounting post 34 can clamp one end of the connecting rod 32. By rotating the locking wheel 352, the locking wheel 352 and the end surface of the second mounting post 34 can fully press the end of the connecting rod 32, thereby fixing the position of the connecting rod 32 and applying a stable clamping force to the workpiece 100. In other embodiments, a butterfly nut can be used in place of the locking wheel 352.

[0039] To increase the rigidity and load-bearing capacity of the connecting rod 32, a reinforcement portion 322 is provided at the end of the connecting rod 32 away from the first mounting post 31. The reinforcement portion 322 can be achieved by increasing the thickness of the connecting rod 32 or by using material reinforcement. In this embodiment, the reinforcement portion 322 is achieved by increasing the load-bearing area of ​​the connecting rod 32. The connecting rod 32 can have a circular cross-section and be made of steel or an alloy to ensure sufficient strength to withstand the cutting forces during machining.

[0040] Through the clamping device 30, not only the workpiece 100 is accurately fixed, but also the design of the locking member 35 and the clamping member 33 enables the tooling to adapt to workpieces 100 of different sizes and shapes, thereby improving the effectiveness and stability of the fixation of the workpiece 100, thereby greatly improving the drilling accuracy.

[0041] In another embodiment, the clamping device 30 also includes another implementation form, that is, one of a cylinder, a hydraulic cylinder or an electric push rod can be used as the clamping device 30. The output extension and contraction direction of the cylinder, hydraulic cylinder or electric push rod is perpendicular to the positioning surface 12, ensuring that the workpiece 100 can remain stable under higher pressure. When a cylinder is used, its power source is compressed air, and the clamping and loosening of the workpiece 100 is achieved by the extension and contraction of the cylinder piston rod. It has a simple structure and is easy to operate. When a hydraulic cylinder is used, its power source is hydraulic oil, and power is provided by a hydraulic pump, so that the piston rod can generate a greater clamping force, which is more suitable for fixing heavy workpieces 100. When an electric push rod is used, the workpiece 100 is clamped and loosened by the extension and contraction of the push rod driven by an electric motor. It not only has a simple structure, but also can achieve automatic control.

[0042] In addition, the workpiece 100 positioned by the tooling of the present application can also be milled by a milling head, and the tooling can also firmly fix the workpiece 100. In addition, the machining surface 11 and the positioning surface 12 provided on the positioning seat 10 can also separate the machining debris, thereby improving the efficiency of debris recovery.

[0043] The implementation principle of this embodiment is: by providing a tool for drilling a workpiece, it not only effectively solves the problem in the prior art that the workpiece 100 is prone to vibration and displacement, resulting in a decrease in drilling accuracy, but also, through the design of the clamping device 30, adapts to the processing environment under different conditions, improves the reliability and stability of the fixation of the workpiece 100, thereby greatly improving the processing accuracy and production efficiency of the workpiece 100, and making significant improvements and contributions to the prior art.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tool for drilling a workpiece, characterized in that: The tooling comprises a positioning seat (10), wherein the positioning seat (10) is provided with a processing surface (11) and a positioning surface (12), the positioning seat (10) is provided with a positioning hole for the processing end of the workpiece (100) to pass through, the positioning hole connects the processing surface (11) and the positioning surface (12), the positioning surface (12) can abut against the end surface of the workpiece (100), the positioning surface (12) is provided with a positioning pin (20) for positioning the workpiece (100), and the tooling further comprises a pressing device (30) for pressing the workpiece (100) toward the positioning surface (12).

2. A tool for drilling a workpiece according to claim 1, characterized in that: The clamping device (30) includes a first mounting column (31), a connecting rod (32), a clamping member (33), a second mounting column (34) and a locking member (35), wherein the first mounting column (31) and the second mounting column (34) are fixed on the positioning surface (12), one end of the connecting rod (32) is hinged to the first mounting column (31), the clamping member (33) is fixed to the connecting rod (32) and can move closer to or away from the workpiece (100) along with the connecting rod (32), and the locking member (35) is used to lock the second mounting column (34) and the end of the connecting rod (32).

3. A tool for drilling a workpiece according to claim 2, characterized in that: The pressing member (33) comprises an abutment nut threadedly connected to the side of the connecting rod (32), and the end face of the abutment nut is capable of abutting against the workpiece (100).

4. A tool for drilling a workpiece according to claim 3, characterized in that: The rotation axis of the abutment nut can be perpendicular to the positioning surface (12).

5. The tool for drilling a workpiece according to claim 2, characterized in that: A clearance groove (321) is provided at the end of the connecting rod (32), and the locking member (35) includes a locking screw (351) and a locking wheel (352). One end of the locking screw (351) is hinged to the second mounting column (34), and the locking screw (351) can be inserted into the clearance groove (321). The locking wheel (352) is threadedly connected to the locking screw (351), and the locking wheel (352) and the end surface of the second mounting column (34) can clamp one end of the connecting rod (32).

6. A tool for drilling a workpiece according to claim 4, characterized in that: A reinforcement portion (322) is provided at one end of the connecting rod (32) away from the first mounting column (31).

7. A tool for drilling a workpiece according to claim 2, characterized in that: The pressing device (30) is one of an air cylinder, a hydraulic cylinder or an electric push rod, and the output extension direction of the pressing device (30) is perpendicular to the positioning surface (12).

8. The tool for drilling a workpiece according to claim 1, characterized in that: The positioning pin (20) is detachably connected to the positioning seat (10).

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