Positioning device for machining inclined hole of end socket and drilling method

Abstract

The invention belongs to the technical field of technological equipment, and particularly discloses a positioning device for machining an inclined hole of a seal head, which comprises a connecting base, a positioning device and a positioning device, and the connecting base comprises a plane end connected with a machining plane of a drilling machine and a machining end used for fixing a seal head workpiece; the workpiece fixing assembly is arranged on the end face of the machining end and used for fixing an end socket workpiece; and the drilling auxiliary assembly is arranged on the plane end. According to the device, the end socket workpiece is placed on the inclined plane of the base, the inclined hole machining plane of the end socket workpiece is kept consistent with the machining plane of a drilling machine through the base in the positioning device, then positioning of the inclined hole in the circumferential direction of a product is limited through the positioning block installed on the support, and after the product is positioned and pressed, the inclined hole is machined. By means of the outer circle of the bottom plane of the end socket and the appearance of the inclined hole, the inclined hole can be machined on a common drilling machine, and therefore batch machining of end socket workpieces is facilitated.

Description

Technical Field

[0001] This invention relates to the field of process equipment technology, and in particular to a positioning device and drilling method for machining oblique holes in end caps. Background Technology

[0002] From the attached drawings in the instruction manual Figure 4 It can be understood that the end cap workpiece is flat at both the top and bottom, with a sloping surface in the middle. Holes need to be drilled on the sloping surface. However, in the existing technology, when machining the sloping holes on the end cap, multi-axis machining centers are usually used to machine the sloping holes. However, the equipment resources of multi-axis machining centers are difficult to allocate, and the concentration of processes is not conducive to batch processing. Summary of the Invention

[0003] In view of this, in order to solve the problem that multi-axis machining centers are required for drilling inclined holes in end caps, the present invention proposes a positioning device and drilling method for machining inclined holes in end caps.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A positioning device for machining oblique holes in end caps, comprising: A connecting base, the connecting base including a planar end connected to the machining plane of the drilling machine and a machining end for fixing the end cap workpiece, the end face of the machining end being at a certain angle to the horizontal plane; A workpiece fixing assembly is disposed on the end face of the processing end and is used to fix the end cap workpiece. A drilling auxiliary component is disposed on the planar end, and the auxiliary end of the drilling auxiliary component is located at the upper end of the processing end.

[0005] As a further improvement to the above technical solution: An optimized version of the above technical solution is that a product limiting groove is provided on the end face of the processing end, and the workpiece fixing assembly is located in the product limiting groove.

[0006] An optimized version of the above technical solution is that a waste collection tank is also provided inside the product limiting groove.

[0007] An optimized version of the above technical solution is that the workpiece fixing assembly includes a pull rod screwed to the end face of the processing end, a pressure cap slidably disposed on the pull rod, and a fixing nut screwed to the other end of the pull rod and located above the pressure cap.

[0008] An optimized version of the above technical solution is that the lower part of the pressure cap is stepped, which matches the upper opening of the end cap assembly.

[0009] An optimized version of the above technical solution is that the drilling auxiliary assembly includes an auxiliary bracket vertically arranged on the plane end and located on the side of the processing end, a positioning block horizontally and vertically arranged on the auxiliary bracket, and a drill sleeve arranged at the other end of the positioning block. The drill sleeve is vertical and located at the upper end of the processing end.

[0010] An optimized version of the above technical solution is that the upper end of the positioning block is provided with an adjustment waist hole, and the positioning block and the auxiliary support are connected by an adjustment bolt passing through the adjustment waist hole, and the front-to-back distance of the positioning block is adjusted by adjusting the tightness of the adjustment bolt.

[0011] An optimized version of the above technical solution is that a positioning groove is provided on the lower surface of the front end of the positioning block.

[0012] An optimized solution to the above technical solution is that the auxiliary bracket and the flat end are positioned by a positioning pin and then fixedly connected by a positioning screw.

[0013] The present invention also provides a drilling method using the aforementioned positioning device for machining oblique holes in end caps, comprising the following steps: Step 1: Place the flat end of the connecting base on the surface of the drilling machine table; Step 2: Install the auxiliary bracket on the upper flat end of the connecting base; Step 3: Screw the pull rod into the inclined surface of the machined end of the connecting base; Step 4: Insert the end cap workpiece through the tie rod, with the bottom contacting the inclined surface of the processing end. Then, insert the pressure cap through the tie rod to fit the upper end of the end cap workpiece, and screw the fixing nut to the upper end of the tie rod to apply pressure to the end cap workpiece to achieve a pre-tightened state. Step 5: Install the drill bushing onto one end of the positioning block, and after determining the drilling position of the end cap workpiece using the drill bushing, install it onto the auxiliary bracket using the adjusting bolts. Step 6: Loosen the fixing nut, gently rotate the end cap workpiece, move the positioning block forward so that the position of the inclined hole on the spherical surface of the end cap workpiece matches the positioning groove at the end of the positioning block, and then tighten the fixing nut to fix the end cap workpiece, and tighten the adjusting bolt to fix the bracket. Step 7: Then, the drilling machine work platform is used to fix the connecting base, and the drilling machine is used to drill holes in the end cap workpiece; Step 8: Loosen the fixing nut and adjusting bolt to allow the end cap workpiece to rotate. Step 9: Repeat steps 6 to 8 to drill holes in the entire end cap assembly.

[0014] Compared with existing technologies, the beneficial effects of this invention are: The device provided by this invention places the end cap workpiece on the inclined surface of the base. The base in the positioning device keeps the plane of the inclined hole of the end cap workpiece consistent with the machining plane of the drilling machine. Then, the positioning block installed on the bracket restricts the positioning of the inclined hole in the circumferential direction of the product. After the product is positioned and pressed, the device uses the outer circle of the bottom plane of the end cap and the shape of the inclined hole to form a positioning principle of one surface and two pins, thereby realizing the machining of the inclined hole on a conventional drilling machine. This solves the problem that the existing technology requires the use of a multi-axis machining center to drill holes, which is beneficial for the batch processing of end cap workpieces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure during the drilling process of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a top view of the positioning block structure of the present invention; Figure 4 This is a schematic diagram of the structure of the end cap for drilling according to the present invention.

[0016] In the diagram: 1. Connecting base; 11. Flat end; 12. Machining end; 13. Product limiting groove; 14. Waste collection groove; 2. Tie rod; 3. Pressure cap; 4. Fixing nut; 5. Auxiliary bracket; 51. Positioning screw; 52. Positioning pin; 6. Positioning block; 61. Adjusting waist hole; 62. Adjusting bolt; 7. Drill sleeve; 8. Positioning groove; 9. End cap workpiece. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] As attached Figure 1 To be continued Figure 4 As shown, this technical solution mainly aims to solve the problem of... Figure 4 The inclined drilling of the head workpiece 9 is achieved by machining the outer dimensions of the head workpiece 9 after the outer dimensions have been machined. The inclined hole is then machined using the outer dimensions for positioning. This technical solution mainly consists of three parts: the connecting base 1, the workpiece positioning, and the workpiece drilling aid, as detailed below: The connecting base 1 mainly consists of two parts: a flat end 11, which is used to connect with the drilling platform and is rectangular in shape, and a machining end 12. The cross-section of the machining end 12 is a right-angled triangle, and the inclined surface of the machining end 12 is the placement surface. A product limiting groove 13 is provided on the placement surface for placing the end cap workpiece 9. A waste collection groove 14 is also provided in the middle of the product limiting groove 13 for collecting waste generated during the drilling process.

[0021] The workpiece drilling auxiliary part mainly includes two parts: auxiliary bracket 5 and positioning block 6. The side of the bottom surface of the auxiliary bracket 5 with the positioning pin 52 hole is aligned with the position of the positioning pin 52 hole of the connecting base 1. The positioning pin 52 is inserted, and the auxiliary bracket 5 is connected to the connecting base 1 by positioning screw 51 and fixed on the connecting base 1.

[0022] The upper end of the positioning block 6 is provided with an adjustment waist hole 61, and an adjustment bolt 62 passes through the adjustment waist hole 61. Thus, the positioning block 6 is connected to the auxiliary bracket 5 through the adjustment bolt 62. The front end of the positioning block 6 is provided with a drill sleeve 7 and a positioning groove 8, and the positioning groove 8 is located below the drill sleeve 7. For the workpiece positioning part, there is mainly a pull rod 2 that is vertically screwed to the inclined surface of the processing end 12. A pressure cover 3 is slidably set on the railing. At the same time, a fixing nut 4 is screwed on the pull rod 2. The fixing nut 4 is located at the upper end of the pressure cover 3 and is used to apply pressure to the pressure cover 3. Meanwhile, the cross-section of the pressure cap 3 is stepped, mainly to match the end cap 9 and better limit the end cap 9.

[0023] The specific steps of the drilling method using this technical solution are as follows: Step 1: Place the flat end 11 of the connecting base 1 on the surface of the drilling machine table; Step 2: Align the side of the auxiliary bracket 5 with the hole for the positioning pin 52 drilled on the bottom with the position for the hole for the positioning pin 52 drilled on the top of the connecting base 1, insert the positioning pin 52, and then connect the auxiliary bracket 5 with the connecting base 1 through the positioning screw 51 and fix it on the connecting base 1. Step 3: Screw the pull rod 2 into the threaded hole on the bevel of the machined end 12 of the connecting base 1, thus completing the assembly of the base assembly; Step 4: Insert the end cap 9 through the pull rod 2 and embed the bottom into the product limiting groove 13. Then, insert the pressure cap 3 through the pull rod 2 to fit the upper end of the end cap 9, and make clearance fit with the small hole at one end of the end cap. Then, screw the fixing nut 4 to the upper end of the pull rod 2 to apply pressure to the end cap 9 and achieve a pre-tightened state. Step 5: Install the drill sleeve 7 onto one end of the positioning block 6, and after determining the drilling position of the end cap workpiece 9 using the drill sleeve 7, install it onto the auxiliary bracket 5 using the adjusting bolt 62. Step 6: Loosen the fixing nut 4, gently rotate the end cap workpiece 9, move the positioning block 6 forward so that the position of the inclined hole on the spherical surface of the end cap workpiece 9 matches the positioning groove 8 at the end of the positioning block 6, thereby tightening the fixing nut 4 to fix the end cap workpiece 9, and tightening the adjusting bolt 62 to fix the bracket. The oblique holes on the end cap workpiece 9 are quickly and accurately positioned due to the constraints of the auxiliary support 5 and the positioning block 6. The assembly state of the parts has formed a positioning consistent with the principle of one side and two pins.

[0024] Step 7: Then, the drilling machine work platform is fixed to the connecting base 1, and the drilling machine is used to drill holes in the end cap workpiece 9; Step 8: Loosen the fixing nut 4 and adjusting bolt 62 to allow the end cap workpiece 9 to rotate. Step 9: Repeat steps 6 to 8 to drill holes in the entire end cap assembly.

[0025] The device developed by this company utilizes the principle of one side and two pins to place and clamp the product on an inclined plane, enabling inclined plane machining on a conventional drilling machine. This device is stable and reliable.

[0026] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A positioning device for machining a bevel hole of a head, characterized in that, The utility model relates to a connecting base (1) which comprises a plane end (11) connected with the drilling machine processing plane, a processing end (12) for fixing the head workpiece (9), and the end face of the processing end (12) is at an angle with the horizontal plane. The workpiece fixing assembly is arranged on the end face of the processing end (12) and used for fixing the head workpiece (9). The drilling auxiliary assembly is arranged on the plane end (11), and the auxiliary end of the drilling auxiliary assembly is located on the upper end of the processing end (12). The end face of the processing end (12) is provided with a product limiting groove (13), and the workpiece fixing assembly is located in the product limiting groove (13).

2. The positioning device for machining the bevel of a head according to claim 1, characterized in that, The product limiting groove (13) is further provided with a waste collecting groove (14).

3. The positioning device for machining the bevel of a head according to claim 2, characterized in that, The workpiece fixing assembly comprises a pull rod (2) screwed on the end face of the processing end (12), a pressing cover (3) slidingly arranged on the pull rod (2), and a fixing nut (4) screwed on the other end of the pull rod (2) and located above the pressing cover (3).

4. The positioning device for machining angled holes in a head according to claim 1, characterized in that, The lower part of the pressing cover (3) is stepped and matched with the upper end opening of the head assembly.

5. The positioning device for machining the bevel of a head according to claim 4, characterized in that, The drilling auxiliary assembly comprises an auxiliary support (5) vertically arranged on the plane end (11) and located on the side of the processing end (12), a positioning block (6) horizontally and vertically arranged on the auxiliary support (5), and a drill sleeve (7) arranged on the other end of the positioning block (6), wherein the drill sleeve (7) is vertically arranged and located on the upper end of the processing end (12).

6. The positioning device for machining the bevel of a head according to claim 5, characterized in that, An adjusting waist hole (61) is arranged on the upper end of the positioning block (6), the positioning block (6) and the auxiliary support (5) are connected through an adjusting bolt (62) passing through the adjusting waist hole (61), and the distance between the front and back of the positioning block (6) is adjusted through the tightness of the adjusting bolt (62).

7. The positioning device for machining angled holes in a head according to claim 6, characterized in that, A positioning groove (8) is arranged on the lower surface of the front end of the positioning block (6).

8. The positioning device for machining angled holes in a head according to claim 7, characterized in that, The auxiliary support (5) and the plane end (11) are positioned through a positioning pin (52) and fixedly connected through a positioning screw (51).

9. The positioning device for machining angled holes in a head according to claim 6, characterized in that, The utility model relates to a connecting base (1) which comprises a plane end (11) connected with the drilling machine processing plane, a processing end (12) for fixing the head workpiece (9), and the end face of the processing end (12) is at an angle with the horizontal plane.

10. A method of drilling a bevel hole in a process header using the positioning device of claim 8, wherein, Step 1: place the plane end (11) of the connecting base (1) on the drilling machine workbench plane; Step 2: install the auxiliary support (5) on the upper end of the plane end (11) of the connecting base (1); Step 3: screw the pull rod (2) into the inclined surface of the processing end (12) of the connecting base (1); Step 4: pass the head workpiece (9) through the pull rod (2), contact the bottom with the inclined surface of the processing end (12), pass the pressing cover (3) through the pull rod (2) to adhere to the upper end of the head workpiece (9), and screw the fixing nut (4) with the upper end of the pull rod (2) to apply pressure to the head workpiece (9) to achieve the pre-pressing state; Step 5: install the drill sleeve (7) on one end of the positioning block (6), and then install the drill sleeve (7) on the auxiliary support (5) through the adjusting bolt (62) after determining the drilling position of the head workpiece (9), ​ Step 6: Loosen the fixing nut (4), gently rotate the end cap workpiece (9), move the positioning block (6) forward so that the position of the oblique hole on the spherical surface of the end cap workpiece (9) matches the positioning groove (8) at the end of the positioning block (6), thereby tightening the fixing nut (4) to fix the end cap workpiece (9), and tightening the adjusting bolt (62) to fix the bracket. Step 7: Align the drill bushing (7) with the drill hole of the drilling machine, then fix the connecting base (1) on the drilling machine work platform, and use the drilling machine to drill the end cap workpiece (9); Step 8: Loosen the fixing nut (4) and adjusting bolt (62) to allow the end cap workpiece (9) to rotate. Step 9: Repeat steps 6 to 8 to drill holes in all the holes on the end cap assembly.

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