A kind of insulator ball and socket hardware processing technology

Abstract

The present invention relates to a processing technology for insulator ball and socket hardware. The insulator ball and socket hardware comprises a crimping part and a ball and socket part fixed at one end of the crimping part. A U-shaped groove is provided on the front of the ball and socket part. The processing technology comprises the following steps: S1: clamping; S2: milling lateral grooves; S3: milling inner cavity: S3.1: milling the bottom inner cavity, S3.2: milling the upper inner cavity; S4: pin hole; S5: the finished product processing of the insulator ball and socket hardware is completed. The clamping device of the insulator ball and socket hardware can simultaneously clamp 16 insulator ball and socket hardware to be processed for processing the ball and socket part. The milling and washing process is divided into four steps of milling lateral grooves, milling the bottom inner cavity, milling the upper inner cavity and the pin hole, so as to improve the processing accuracy of the ball and socket part, ensure the production quality of the insulator ball and socket hardware, and improve the production efficiency; the lateral groove comprises a vertical groove and a chamfer at the end of the vertical groove located on the outer surface of the ball and socket part. The chamfer can remove the burrs generated by machining on the parts, facilitate assembly, and improve the mechanical properties.

Description

Technical Field

[0001] The invention relates to the technical field of insulator hardware processing, and in particular to a processing technology for insulator ball and socket hardware. Background Art

[0002] Insulators are widely used in power systems, and insulator fittings are important components of insulators. Insulator ball and socket fittings are generally used in conjunction with ball head fittings.

[0003] The insulator ball and socket fittings mainly include a crimping part and a ball socket part. The crimping part is provided with a crimping hole for crimping and fixing with a core rod. The ball socket part has a hollow cavity for accommodating the end ball head section of the insulator ball head fittings, and the hollow cavity is connected with the outside through a side opening. The hollow cavity is connected with the outside through the side opening, and a pin hole is penetrated through the back of the hollow cavity away from the side opening. The side opening includes two parts. The narrower opening A is used for accommodating the connecting section of the ball head fittings, and the wider opening B is used for accommodating the ball head section of the ball head fittings.

[0004] The traditional method of processing ball and socket hardware is to process the lateral groove and ball socket of the hardware through clamping, machining and secondary clamping and secondary machining on two devices respectively. The labor intensity of machining operators is high and the efficiency is low. At the same time, the two clampings also have a great impact on the machining accuracy, and the qualified rate is usually between 96% and 97%. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a processing technology for insulator ball and socket hardware, which solves the problems of high labor intensity, low efficiency, low processing precision and high investment cost for machining operators in traditional processing technology.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a processing technology for insulator ball and socket hardware, the insulator ball and socket hardware comprises a crimping part and a ball and socket part fixed at one end of the crimping part, and a U-shaped groove is provided on the front of the ball and socket part, characterized in that it comprises the following steps:

[0007] S1: Clamping: Fix the insulator ball and socket fittings to be processed on the insulator ball and socket fittings clamping tooling;

[0008] S2: Milling lateral grooves: Install a special milling groove tool on the machine tool, adjust the cutter head of the milling groove tool to align with the U-shaped groove on the front of the ball socket of the insulator ball socket hardware to be processed, start the machine tool and feed the milling, and then withdraw the tool after the lateral groove milling is completed;

[0009] S3: Milling the inner cavity: Install the ball socket inner cavity forming tool on the machine tool and adjust the speed to 400-500r / min;

[0010] S3.1: Milling the bottom inner cavity: Align the ball socket inner cavity forming tool with the bottom end of the lateral groove and push it inwards for milling, and the milling of the bottom inner cavity is completed;

[0011] S3.2: Milling the upper inner cavity: The ball socket inner cavity forming tool is moved linearly in the direction away from the crimping part to mill and wash, and the upper inner cavity milling and washing are completed, and the spherical inner cavity milling and washing are completed and the tool is withdrawn;

[0012] S4: Pin hole: Install a pin hole drill bit on the machine tool, wherein the pin hole drill bit is symmetrically provided with inclined triangular pyramids on both sides near the top of the drill bit, and the inclination direction of the triangular pyramids is consistent with the direction of the drill bit, adjust the rotation speed of the pin hole drill bit to 500-600r / min, aim the pin hole drill bit at the back of the ball socket part of the insulator ball socket hardware to be processed, and start milling. When the inclined triangular pyramid of the pin hole drill bit is completely immersed in the back of the ball socket part, the milling is completed and the tool is withdrawn;

[0013] S5: The finished product processing of insulator ball and socket fittings is completed.

[0014] Further, the lateral groove includes a vertical groove and a chamfer at the end of the vertical groove located on the outer surface of the ball socket part, the special milling groove tool includes an end mill and an angle milling cutter fixed on the cylindrical surface of the end mill, and the cylindrical surface and end surface of the end mill and the surface of the angle milling cutter are provided with cutting knives, the special milling groove tool is installed on the machine tool, the rotation speed of the special milling groove tool is adjusted to 400-450r / min, the special milling groove tool is set horizontally, the ball socket hardware of the insulator to be processed is set vertically below the special milling groove tool, and the machine tool is started. Align the cutting tool on the cylindrical surface of the end mill of the special slot milling tool with the opening direction of the U-shaped slot, and align the connection between the angle milling cutter and the end mill of the special slot milling tool with the end of the U-shaped slot opening away from the crimping part to mill the vertical slot vertically downward. After the vertical slot milling is completed, adjust the rotation speed of the special slot milling tool to 300-350r / min, and feed the special slot milling tool horizontally toward the end of the U-shaped slot opening close to the crimping part until the cutting tool on the surface of the angle milling cutter is just completely immersed in the ball socket. Stop milling to complete the chamfering.

[0015] Furthermore, the insulator ball and socket hardware clamping tool comprises a rectangular box, a mounting seat and a clamping device, the bottom end of the rectangular box is fixed on the mounting seat, and the clamping device is arranged on the outside of the four corners of the rectangular box;

[0016] The rectangular box body comprises four vertically arranged rectangular panels that are vertically connected to each other;

[0017] The clamping device includes a mounting plate, a plurality of clamping components fixed on the mounting plate, and a positioning component. One side of the mounting plate in the vertical direction is partially overlapped and fixed on one side of the rectangular panel, and the other side is extended outward. The extended end of the mounting plate is located in the vertical direction and has two mounting grooves for setting the clamping components. The clamping component includes a mounting plate, a fixed chuck, a movable chuck, a fixed plate, a positioning component, a cylinder, a piston rod and a cylinder valve. The fixed chuck is fixed in the mounting groove. The fixed plate is set on an adjacent rectangular panel close to the mounting plate. The movable chuck is set on one side of the fixed chuck away from the fixed plate. On the side, the cylinder is fixed on the adjacent rectangular panel and located between the mounting plate and the fixed plate. The piston rod is connected to the cylinder. Two groups of concave V-grooves for inserting into the crimping parts of the insulator ball and socket hardware are symmetrically opened on the opposite surfaces of the movable clamp and the fixed clamp. The movable clamp is connected to the fixed clamp, the mounting plate and the fixed plate by a pair of piston rods arranged parallel to each other. The piston rod is driven by the cylinder to tighten the movable clamp to the fixed clamp to fix the crimping part of the insulator ball and socket hardware. The cylinder valve is connected to the cylinder and fixed on the top surface of the mounting plate. The positioning assembly is arranged on the rectangular panel to position the insulator ball and socket hardware.

[0018] Furthermore, the mounting plate is supported and fixed to the adjacent rectangular panels in the vertical direction by a plurality of parallel right-angle plates;

[0019] The positioning assembly includes a positioning plate and a positioning rod, wherein the positioning plate is fixed on a side of the mounting plate away from the mounting groove, one end of the positioning rod is aligned with the bottom of the crimping part of the insulator ball and socket hardware, and the other end is vertically fixed on one side of the positioning plate;

[0020] The movable clamp is fixed on the mounting plate through a detachable limiting rod passing through the fixed clamp, and a limiting nut is arranged at the extending end of the limiting rod outside the movable clamp.

[0021] The advantages of the present invention are:

[0022] 1) The clamping device of the insulator ball and socket hardware of the present invention is arranged on the outside of the four corners of the rectangular box, and the spatial arrangement is reasonable, which is convenient for subsequent processing. Two mounting grooves are provided on the mounting plate of the clamping device for setting the clamping assembly, and the clamping assembly is provided with two groups of concave V-shaped grooves for inserting into the crimping part of the insulator ball and socket hardware, which can clamp 16 insulator ball and socket hardware to be processed at the same time for processing the ball and socket part. The milling and washing process of this process is divided into four steps: milling lateral grooves, milling bottom inner cavity, milling upper inner cavity and pin hole. The lateral groove includes a vertical groove and a chamfer at the end of the vertical groove located on the outer surface of the ball and socket part. The lateral groove is processed by a special tool to directly remove the burrs on the outer end of the lateral groove of the part caused by machining, which not only improves the production efficiency, but also improves the mechanical properties. The milling and washing process of this process is divided into four steps, which can improve the stability of the processed workpiece of the ball and socket part, improve the processing accuracy, ensure the production quality of the insulator ball and socket hardware, and improve the production efficiency.

[0023] 2) During the milling of the lateral grooves in the present invention, the rotation speed of the special milling tool when milling the vertical groove is 400-450r / min, and the rotation speed of the special milling tool when milling the chamfer is 300-350r / min, which reduces the wear of the end mill and the angle milling cutter of the special milling tool, reduces the investment cost, and ensures the processing accuracy of the chamfer and the vertical groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Figure 1 The present invention is a front view of an insulator ball and socket hardware to be processed according to a processing technology for insulator ball and socket hardware of the present invention.

[0026] Figure 2 The present invention is a three-dimensional structural diagram of an insulator ball and socket hardware clamping tool for an insulator ball and socket hardware processing technology.

[0027] Figure 3-1 to Figure 3-3 The present invention is a side sectional view of a lateral groove milling and washing process of an insulator ball and socket hardware processing technology.

[0028] Figure 4-1~4-3 The present invention is a side sectional view of a spherical inner cavity milling and washing process of an insulator ball and socket hardware processing technology.

[0029] Figure 5 The present invention is a structural diagram of a finished product of an insulator ball and socket hardware fitting according to a processing technology of an insulator ball and socket hardware fitting. DETAILED DESCRIPTION

[0030] like Figures 1 to 5 The process for processing insulator ball and socket fittings shown comprises the following steps:

[0031] S1: Clamping: Fix the insulator ball and socket fittings to be processed on the insulator ball and socket fitting clamping tool.

[0032] The insulator ball and socket fitting 1 to be processed comprises a crimping portion 11 and a ball and socket portion 12 fixed at one end of the crimping portion, and a U-shaped groove is provided on the front side of the ball and socket portion 12.

[0033] The insulator ball and socket hardware clamping tool comprises a rectangular box body 2, a mounting seat 3 and a clamping device 4. The bottom end of the rectangular box body 2 is fixed on the mounting seat 3, and the clamping device 4 is arranged on the outer sides of the four corners of the rectangular box body 2.

[0034] The rectangular box 2 includes four rectangular panels which are vertically arranged and vertically connected to each other.

[0035] The clamping device 4 includes a mounting plate 41 , a plurality of clamping components 42 fixed on the mounting plate, and a positioning component 43 .

[0036] The mounting plate 41 is a rectangular structure, one side of the mounting plate 41 in the vertical direction is partially overlapped and fixed on one side of the rectangular panel, and the other side is extended outwardly, and the mounting plate 41 is supported and fixed to the adjacent rectangular panel in the vertical direction by a plurality of parallel right-angle plates 411. The extended end of the mounting plate 41 is provided with two mounting grooves in the vertical direction for setting the clamping assembly 42.

[0037] The clamping assembly 42 includes a fixed clamp 421 , a movable clamp 422 , a fixed plate 423 , a positioning assembly 43 , a cylinder 425 , a piston rod 426 and a cylinder valve 427 .

[0038] The fixed chuck 421 is fixed in the mounting groove, the fixed plate 423 is arranged on the adjacent rectangular panel close to the mounting plate 41, the movable chuck 422 is arranged on the side of the fixed chuck away from the fixed plate, the cylinder 425 is fixed on the adjacent rectangular panel and located between the mounting plate 41 and the fixed plate 423, the piston rod 426 is connected to the cylinder 425, and two groups of concave V-shaped grooves for inserting into the crimping part of the ball and socket hardware of the insulator to be processed are symmetrically opened on the opposite surface of the movable chuck 422 and the fixed chuck 421, and the movable chuck 422 is connected by a pair of piston rods 426 arranged parallel to each other through the fixed chuck 421, the mounting plate 41 and the fixed plate 423, and the piston rod is driven by the cylinder 425 to tighten and fix the movable chuck 422 to the fixed chuck 421 to fix the crimping part 11 of the ball and socket hardware of the insulator to be processed, and the cylinder valve 427 is connected to the cylinder 425 and fixed on the top surface of the mounting plate.

[0039] The positioning assembly 43 is arranged on the rectangular panel for positioning the insulator ball and socket fittings 1 to be processed.

[0040] The positioning assembly 43 includes a positioning plate 431 and a positioning rod 432. The positioning plate 431 is fixed on one side of the mounting plate away from the mounting groove. One end of the positioning rod 432 is aligned with the bottom of the crimping part of the ball and socket hardware of the insulator to be processed, and the other end is vertically fixed on one side of the positioning plate.

[0041] The movable clamp 422 is fixed on the mounting plate through a detachable limiting rod passing through the fixed clamp, and a limiting nut is provided at the extended end of the limiting rod outside the movable clamp.

[0042] S2: Milling lateral groove: The lateral groove 5 includes a vertical groove and a chamfer at the end of the vertical groove located on the outer surface of the ball socket. The special groove milling tool 6 includes an end mill 61 and an angle milling cutter 62 fixed on the cylindrical surface of the end mill, and the cylindrical surface and end face of the end mill and the surface of the angle milling cutter are all provided with cutting tools.

[0043] S2.1: Install the special slot milling tool 6 on the machine tool, adjust the rotation speed of the special slot milling tool 6 to 400r / min, set the special slot milling tool 6 horizontally, set the insulator ball socket hardware 1 to be processed vertically below the special slot milling tool 6, start the machine tool, align the cutting tool on the cylindrical surface of the end mill of the special slot milling tool with the opening direction of the U-shaped slot, align the connection between the angle milling cutter 62 of the special slot milling tool and the end of the end mill 61 with the U-shaped slot opening away from the crimping part, and perform vertical slot milling vertically downward. The vertical slot milling is completed.

[0044] S2.2: Adjust the rotation speed of the special milling tool 6 to 350r / min, and feed the special milling tool 6 along the horizontal direction toward the end of the U-shaped groove opening close to the crimping part until the cutting blade on the surface of the angle milling cutter 62 is just completely immersed in the ball socket part. Stop milling, complete the chamfering, finish milling the lateral groove 5, and withdraw the tool.

[0045] S3: Milling the inner cavity: Install the ball socket inner cavity forming tool 7 on the machine tool and adjust the rotation speed to 400r / min.

[0046] S3.1: Milling the bottom inner cavity: Align the socket inner cavity forming tool 7 with the bottom end of the lateral groove and push it inward for milling, and the milling of the bottom inner cavity is completed.

[0047] S3.2: Milling the upper inner cavity: Move the socket inner cavity forming tool 7 linearly in a direction away from the crimping portion for milling, and the milling of the upper inner cavity is completed, and the milling of the spherical inner cavity 8 is completed and the tool is withdrawn.

[0048] S4: Pin hole: Install a pin hole drill on the machine tool. The pin hole drill is symmetrically provided with inclined triangular pyramids on both sides near the top of the drill, and the inclination direction of the triangular pyramids is consistent with the direction of the drill. Adjust the speed of the pin hole drill to 600r / min, aim the pin hole drill at the back of the ball socket part of the insulator ball socket hardware to be processed, and feed the milling tool. When the inclined triangular pyramid of the pin hole drill is completely immersed in the back of the ball socket part, the milling of the pin hole 9 is completed and the tool is withdrawn.

[0049] S5: The insulator ball and socket hardware products 10 are processed.

[0050] Table 1 is a comparison table of the same number of products processed by the process of the present invention and the traditional process:

[0051] Product processing time / 100 pieces The number of equipment required for product processing Product qualification rate after processing / 100 pieces This process 8 1 99.5 Traditional crafts 8.5 3 98

[0052] Table 1

[0053] It can be seen from Table 1 that the process of the present invention has significantly improved the time required for processing products of different specifications and the qualified rate of processed products compared with the traditional process.

[0054] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A process for processing an insulator ball and socket fittings, the insulator ball and socket fittings comprising a crimping portion and a ball and socket portion fixed at one end of the crimping portion, a U-shaped groove being provided on the front of the ball and socket portion, characterized in that: The following steps are involved: S1: Clamping: Fix the insulator ball and socket fittings to be processed on the insulator ball and socket fittings clamping tooling; S2: Milling lateral grooves: Install a special milling groove tool on the machine tool, adjust the cutter head of the milling groove tool to align with the U-shaped groove on the front of the ball socket of the insulator ball socket hardware to be processed, start the machine tool and feed the milling, and then withdraw the tool after the lateral groove milling is completed; S3: Milling the inner cavity: Install the ball socket inner cavity forming tool on the machine tool and adjust the speed to 400-500r / min; S3.1: Milling the bottom inner cavity: Align the ball socket inner cavity forming tool with the bottom end of the lateral groove and push it inwards for milling, and the milling of the bottom inner cavity is completed; S3.2: Milling the upper inner cavity: The ball socket inner cavity forming tool is moved linearly in the direction away from the crimping part to mill and wash, and the upper inner cavity milling and washing are completed, and the spherical inner cavity milling and washing are completed and the tool is withdrawn; S4: Pin hole: Install a pin hole drill bit on the machine tool, wherein the pin hole drill bit is symmetrically provided with inclined triangular pyramids on both sides near the top of the drill bit, and the inclination direction of the triangular pyramids is consistent with the direction of the drill bit, adjust the rotation speed of the pin hole drill bit to 500-600r / min, aim the pin hole drill bit at the back of the ball socket part of the insulator ball socket hardware to be processed, and start milling. When the inclined triangular pyramid of the pin hole drill bit is completely immersed in the back of the ball socket part, the milling is completed and the tool is withdrawn; S5: Finished processing of insulator ball and socket fittings is completed; The insulator ball and socket hardware clamping tool comprises a rectangular box, a mounting seat and a clamping device, the bottom end of the rectangular box is fixed on the mounting seat, and the clamping device is arranged on the outside of the four corners of the rectangular box; The rectangular box body comprises four vertically arranged rectangular panels that are vertically connected to each other; The clamping device includes a mounting plate, a plurality of clamping components fixed on the mounting plate, and a positioning component. One side of the mounting plate in the vertical direction is partially overlapped and fixed on one side of the rectangular panel, and the other side is extended outward. The extended end of the mounting plate is located in the vertical direction and has two mounting grooves for setting the clamping components. The clamping component includes a mounting plate, a fixed chuck, a movable chuck, a fixed plate, a positioning component, a cylinder, a piston rod and a cylinder valve. The fixed chuck is fixed in the mounting groove. The fixed plate is set on an adjacent rectangular panel close to the mounting plate. The movable chuck is set on one side of the fixed chuck away from the fixed plate. On the side, the cylinder is fixed on the adjacent rectangular panel and located between the mounting plate and the fixed plate. The piston rod is connected to the cylinder. Two groups of concave V-grooves for inserting into the crimping parts of the insulator ball and socket hardware are symmetrically opened on the opposite surfaces of the movable clamp and the fixed clamp. The movable clamp is connected to the fixed clamp, the mounting plate and the fixed plate by a pair of piston rods arranged parallel to each other. The piston rod is driven by the cylinder to tighten the movable clamp to the fixed clamp to fix the crimping part of the insulator ball and socket hardware. The cylinder valve is connected to the cylinder and fixed on the top surface of the mounting plate. The positioning assembly is arranged on the rectangular panel to position the insulator ball and socket hardware.

2. The insulator ball and socket hardware processing technology according to claim 1 is characterized in that: The lateral groove includes a vertical groove and a chamfer at the end of the vertical groove located on the outer surface of the ball socket part. The special milling groove tool includes an end mill and an angle milling cutter fixed on the cylindrical surface of the end mill, and the cylindrical surface and end face of the end mill and the surface of the angle milling cutter are provided with cutting knives. The special milling groove tool is installed on the machine tool, the machine tool is started, the speed of the special milling groove tool is adjusted to 400-450r / min, the special milling groove tool is horizontally set, the ball socket hardware of the insulator to be processed is set vertically below the special milling groove tool, and the special The cutting blade on the cylindrical surface of the end mill of the milling tool is aligned with the opening direction of the U-shaped groove, and the connection between the angle milling cutter of the special milling tool and the end mill is aligned with the end of the U-shaped groove opening away from the crimping part to perform vertical groove milling. After the vertical groove milling is completed, the rotation speed of the special milling tool is adjusted to 300-350r / min, and the special milling tool is moved horizontally toward the end of the U-shaped groove opening close to the crimping part until the cutting blade on the surface of the angle milling cutter is just completely immersed in the ball socket. Stop milling to complete the chamfering.

3. The insulator ball and socket hardware processing technology according to claim 2 is characterized in that: The mounting plate is supported and fixed to adjacent rectangular panels in the vertical direction by a plurality of parallel right-angle plates; The positioning assembly includes a positioning plate and a positioning rod, wherein the positioning plate is fixed on a side of the mounting plate away from the mounting groove, one end of the positioning rod is aligned with the bottom of the crimping part of the insulator ball and socket hardware, and the other end is vertically fixed on one side of the positioning plate; The movable clamp is fixed on the mounting plate through a detachable limiting rod passing through the fixed clamp, and a limiting nut is arranged at the extending end of the limiting rod outside the movable clamp.

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