Device and process method for efficient combined machining of feedback rod V-groove and bulb

Abstract

The invention relates to the field of machining, in particular to a device and process method for efficient combined machining of a V-shaped groove and a bulb of a feedback rod, the device comprises a chaining mounting seat and two armature positioning blocks, one ends of the two armature positioning blocks are clamped and fixed to the chaining mounting seat through corresponding clamping devices, and the other ends of the two armature positioning blocks extend out of the chaining mounting seat; a transverse positioning strip and a longitudinal positioning strip are mounted on the link mounting seat, the transverse positioning strip positions the armature positioning block in the transverse direction and ensures that the transverse horizontal position of the armature positioning block is fixed, and the longitudinal positioning strip positions the armature positioning block in the longitudinal direction and ensures that the longitudinal horizontal position of the armature positioning block is fixed; the difference between the two armature positioning blocks in the circumferential direction is 90 degrees, one armature positioning block is used for fixing the armature baffle assembly when a feedback rod V groove is machined, and the other armature positioning block is used for fixing the armature baffle assembly when a feedback rod bulb is machined.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, and in particular to a device and a process method for efficiently combining and processing a V-groove and a ball flattening of a feedback rod. Background Art

[0002] The armature assembly is a core component in the jet deflector valve, which has the functions of pressure feedback and amplification. The processing quality and efficiency of the V-groove and the ball flat of the feedback rod in the armature assembly determine the quality of the servo valve and the accuracy of product delivery. At present, the processing method of the V-groove and the ball flat of the feedback rod in the armature assembly is to clamp it in the V-block and use a slow-cut wire machine for processing. First, the feedback rod assembly after fine processing is pressed into the armature support rod assembly, and then the wire threading hole of the V-groove is processed by electric spark, and then the V-groove cavity of the feedback rod is processed by slow-cut wire. After the V-groove is processed, the parts are removed from the slow-cut wire machine, and then reinstalled in the V-block, and the ball flat of the feedback rod is processed. The V-groove and the ball flat are clamped and aligned twice, which wastes time, has slow manual alignment efficiency, long total processing time, and high labor costs. It is necessary to equip a corresponding number of slow-cut wire machines and increase the overtime of personnel to meet production tasks. Summary of the invention

[0003] The purpose of the present invention is to solve the problems of low efficiency and long processing time of the V-groove and ball flattening of the feedback rod in the armature assembly. The present invention proposes a device and process method for efficiently combining and processing the V-groove and ball flattening of the feedback rod. First, the feedback rod is processed to a fine-processing state, and the feedback rod is combined in the armature baffle assembly. The pressed feedback rod is installed in the device for processing the V-groove and ball flattening of the feedback rod, and the V-groove and ball flattening of the feedback rod are processed by a combination of wire-electro-spark-wire processing. The alignment and disassembly time is reduced, the processing cycle is shortened, the processing cost is reduced, and the problem of insufficient wire-cut machine tools and staff is solved. The present invention can improve the processing quality of the V-groove and ball flattening of the feedback rod and reduce the processing cost, shorten the processing cycle, and ensure the processing quality of the V-groove and ball flattening of the feedback rod.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme:

[0005] A device for efficiently combining and processing a V-groove and a ball flattening of a feedback rod comprises a link mounting seat 1 and two armature positioning blocks 3, one end of the two armature positioning blocks 3 are clamped and fixed on the link mounting seat 1 by corresponding clamping devices 8, and the other end extends out of the link mounting seat 1, and a transverse positioning bar 2 and a longitudinal positioning bar 10 are installed on the link mounting seat 1, the transverse positioning bar 2 positions the armature positioning block 3 in the transverse direction and ensures that its transverse horizontal position is fixed, and the longitudinal positioning bar 10 positions the armature positioning block 3 in the longitudinal direction and ensures that its longitudinal horizontal position is fixed; the two armature positioning blocks 3 are 90° apart from each other in the circumferential direction, one of the armature positioning blocks 3 is used to fix the armature baffle assembly when processing the V-groove of the feedback rod, and the other armature positioning block 3 is used to fix the armature baffle assembly when processing the ball flattening of the feedback rod.

[0006] Furthermore, a number of positioning holes at different positions are arranged on the link mounting seat 1, and the positions of the transverse positioning bar 2 and the longitudinal positioning bar 10 on the link mounting seat 1 can be adjusted by adjusting the transverse positioning bar 2 and the link mounting seat 1 The longitudinal mounting screws 11 between the longitudinal positioning bar 10 and the link mounting seat 1 can be adjusted, and the positions of the two armature positioning blocks 3 can be further adjusted to match the positions of the upper and lower heads of the wire cutting machine.

[0007] Further, the armature positioning block 3 includes a positioning section and a fixed section, the positioning section is pressed on the link mounting seat 1 by a clamping device 8, a deep groove is arranged on the inner side of the fixed section, the deep groove cooperates with the armature 6 with a small gap, an armature clamping screw 7 is arranged on the deep groove, which is used to press the armature 6, and a through hole is arranged on the fixed section, which cooperates with the support rod 5 with a small gap;

[0008] The positioning sections of the two armature positioning blocks 3 are respectively pressed on the link mounting seat 1 by two clamping devices 8. The clamping device 8 includes a clamping block, a supporting screw 13, and a linking screw 9. One end of the clamping block is fixed to the link mounting seat 1 by threaded connection with the supporting screw 13 and the linking screw 9, and the other end presses the positioning section of the armature positioning block 3.

[0009] Furthermore, the device also includes an L-shaped fixing frame 14, which is used to fix the feedback rod assembly when processing the threading hole on the feedback rod assembly. The structure of the fixing frame 14 is the same as the structure of the armature positioning block 3. A deep groove is arranged on the inner side of one end of the fixing frame 14, and the deep groove cooperates with the armature 6 with a small gap. An armature clamping screw 7 is arranged on the deep groove for clamping the armature 6. A through hole is arranged on the fixing frame 14, which cooperates with the support rod 5 with a small gap.

[0010] A process for efficiently combining and processing the V-groove and the flattened ball of a feedback rod using the device comprises the following steps:

[0011] Step 1: Prepare a feedback rod in a finishing state and an armature baffle assembly in a finishing state;

[0012] Step 2: Mechanically press the feedback rod prepared in step 1 into the armature baffle assembly to obtain a feedback rod assembly;

[0013] Step 3: Install the feedback rod V-groove processing device on the wire-cut positioning platform, install the feedback rod assembly on the feedback rod V-groove processing device, and use the wire-cut machine tool to process the cylindrical section of the V-groove part of the feedback rod into a flat piece with a size of L;

[0014] Step 4: Remove the feedback rod assembly from the feedback rod V-groove processing device, install the fixing frame into the EDM machine, and then install the feedback rod assembly onto the fixing frame, and process the threading hole on the flat plate obtained in step 3;

[0015] Step 5: Install the feedback rod V-groove processing device on the wire-cut positioning platform, then remove the feedback rod assembly from the fixed frame, and then install it on the feedback rod V-groove processing device, and use the wire-cut machine tool to process the feedback rod V-groove in the threading hole; after the feedback rod V-groove processing is completed, use the wire-cut machine tool to process the ball flat at the end of the feedback rod.

[0016] Furthermore, in step 1, the armature baffle assembly in the finished state includes a support rod 5 and an armature 6. When preparing the feedback rod in the finished state and the armature baffle assembly in the finished state, the burrs on the outer surfaces of the feedback rod 4, the support rod 5 and the armature 6 should be polished and removed; in step 2, one end of the support rod 5 is mechanically pressed into the armature 6, and the feedback rod 4 is mechanically pressed into the other end of the support rod 5.

[0017] Further, in step 3, after the feedback rod V-groove processing device is installed on the slow-moving wire positioning platform, the horizontality of the feedback rod V-groove processing device is within 0.002; in step 4, after the feedback rod assembly is installed on the wire threading hole processing device, the horizontality of the flat is within 0.01, and the processed wire threading hole is a square hole of 0.08mm×1mm; in step 5, after the feedback rod assembly is installed on the feedback rod V-groove processing device, the horizontality of the flat is within 0.002, and the verticality of the feedback rod assembly and the feedback rod V-groove processing device is within 0.003.

[0018] Further, step 3 specifically involves installing the feedback rod V-groove processing device on the wire-cut positioning platform, and then installing the armature into the deep groove of any fixed section of the armature positioning block 3, matching with a small gap in the deep groove, passing the feedback rod and the support rod through the hole of the fixed section of the armature positioning block 3, matching with a small gap in the hole of the fixed section of the armature positioning block 3, and then, using the armature clamping screw 7 to pass through the deep groove to tighten the armature 6; then, using the wire-cut machine tool to process a flat surface of size L on the cylindrical section of the feedback rod close to the support rod.

[0019] Further, step 4 is specifically to first clean the EDM machine processing platform, then install the fixed frame on the processing platform, clamp it with magnetic force, level it after clamping, and then install the flat feedback rod assembly on the fixed frame, that is, the armature 6 of the feedback rod assembly is installed in the deep groove on the inner side of one end of the fixed frame, and cooperates with the deep groove with a small gap. The support rod 5 and the feedback rod 4 pass through the hole inside one end of the fixed frame, and the support rod cooperates with the hole with a small gap, and the armature clamping screw is used to tighten the armature, so that the flat on the feedback rod assembly is set horizontally, and then use electric spark to process a wire threading hole of 0.08mm×1mm on the flat on the feedback rod assembly.

[0020] Further, in step 5, the V-groove of the feedback rod and the installation process of the ball flat are as follows:

[0021] First, install the transverse positioning strip 2 and the longitudinal positioning strip 10 on the link mounting seat 1 by using the transverse positioning mounting screws 12 and the longitudinal mounting screws 11 respectively, then fix the two armature positioning blocks 3 on the hinge mounting seat 1 by the clamping device 8, and use the transverse positioning strip 2 and the longitudinal positioning strip 10 to locate the transverse and longitudinal horizontal positions of the entire device, the two armature positioning blocks 3 are 90° apart in the circumferential direction, and then install the feedback rod assembly on one of the armature positioning blocks 3, the armature 6 cooperates with the deep groove on the inner side of the fixed section of the armature positioning block 3, and the support rod 5 cooperates with the hole in the fixed section of the armature positioning block 3; finally, fix the armature 6 with the armature clamping screw 7, thereby fixing the feedback rod assembly, and use a slow wire cutting machine to process a feedback rod V groove in the threading hole; then, in the same way, install the feedback rod assembly with the feedback rod V groove processed on the other armature positioning block 3 to process the ball flat.

[0022] Compared with the existing servo valve hydraulic amplifier structure, the present invention has the following advantages:

[0023] The present invention proposes a combined addition method with compact processing steps, interlocking, reliable control and ingenious design in the traditional single-point processing method. A pair of armature positioning blocks with a 90° difference between the feedback rod V-groove and the ball flattening device are used to complete the feedback rod V-groove processing and the ball flattening processing at one time by flipping, which reduces the alignment time by 4 times, improves the processing efficiency, shortens the processing cycle of the feedback rod V-groove and the ball flattening, and reduces the processing cost. The present invention has the following advantages:

[0024] (1) The present invention discloses a process method for efficiently combining and processing the V-groove and ball flattening of a feedback rod, which includes four parts: one part combines the feedback rod, the armature, and the support rod by mechanical pressing, and ensures a certain positioning accuracy; the second part installs the combined feedback rod assembly in the feedback rod V-groove and ball flattening processing device, and uses wire cutting to process the flattening of the feedback V-groove; the third part uses an EDM fixing frame to be installed on the EDM platform, and processes a 0.08mm×1mm threading hole; the fourth part uses a pair of identical armature positioning blocks 3, which are installed by flipping 90° to achieve one-time processing of the V-groove and ball flattening of the feedback rod. The method of the present invention cleverly combines the different processing methods of EDM and wire cutting together, reduces the alignment time between fixtures, improves processing efficiency, shortens the processing cycle of the feedback rod V-groove and ball flattening, and reduces processing costs.

[0025] (2) When preparing the feedback rod in the fine-machined state and the armature in the fine-machined state, the outer circle accuracy of the armature is improved to ensure the installation accuracy requirements, and clear requirements are set for the roundness and sharp edge of the pressed end of the feedback rod.

[0026] (3) The present invention uses a pair of armature mounting seats that are 90 degrees apart for flipping and installation, which simplifies the complexity of the device, reduces the difficulty of clamp processing, and reduces the cost of clamp processing.

[0027] (4) The present invention utilizes the transverse positioning strip and the longitudinal positioning strip to align the entire device only once, and the subsequent device can be installed on the wire-cutting platform all the time. Different feedback rod assemblies can be replaced for processing simply by removing the armature clamping screw, which greatly shortens the processing time.

[0028] (5) The present invention installs a fixing frame for processing V-groove threading holes on the EDM machine platform, and a device for processing V-groove cavities and ball flattening is installed on the wire-cutting machine platform, and the devices are flipped 90 degrees relative to each other. Each hinge mounting seat is equipped with a pair of armature positioning blocks, which are flipped 90 degrees relative to each other, and are used to process the V-groove and ball flattening respectively. When the flattening of the V-groove is perpendicular to the horizontal plane, the ball flattening is processed at the end of the feedback rod. If the flattening of the V-groove is parallel to the horizontal plane, the V-groove is processed at the flattening.

[0029] (6) There is a small gap between the deep groove in the armature positioning block and the outer circle of the armature, so that the flat of the V-groove of the feedback rod will not deflect. There is also a small gap between the support rod pressed with the feedback rod and the small hole in the armature positioning block, and the level of the V-groove flat is ensured by this gap;

[0030] (7) The deep groove and the small hole of the armature positioning block of the present invention are processed by slow walking. The deep groove is a rectangular groove with three positioning surfaces. The three positioning surfaces are all processed by flat grinding to ensure that the three positioning surfaces are parallel and perpendicular to each other, and the verticality of the armature is within 0.003 and the flatness of the V groove is within 0.002;

[0031] (8) The armature positioning block of the present invention is installed on the wire running machine through a hinge mounting seat. The armature positioning block changes the relative position with the upper and lower machine heads of the wire running machine by being installed on the hinge mounting seat. For feedback rods of different lengths, there will be no interference with the upper and lower machine heads.

[0032] (9) The fixing bracket of the present invention is installed on the EDM machine platform by electromagnetic force, and a 0.08mm×1mm electrode is used to process the threading hole. The fixing bracket and the armature positioning block are different in thickness dimension M, and other structural features are exactly the same, thereby ensuring the high similarity of the fixture and facilitating processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic flow chart of a process method for efficiently combining and processing the V-groove and the flattening of the ball of a feedback rod according to the present invention;

[0034] Figure 2 It is a schematic diagram of the mechanical combination of the feedback rod, the support rod and the armature in a process method of the present invention for efficiently combining and processing the V groove and the ball flattening of the feedback rod;

[0035] Figure 3 It is a schematic diagram of a V-groove flattening of a feedback rod for slow wire cutting according to a process method of the present invention for efficiently combining the V-groove and the flattening of a feedback rod;

[0036] Figure 4 This is a schematic diagram of the structure of a device for efficiently combining and processing the V groove and ball flattening of a feedback rod according to the present invention. Figure 1 ;

[0037] Figure 5 This is a schematic diagram of the structure of a device for efficiently combining and processing the V groove and ball flattening of a feedback rod according to the present invention. Figure 2 ;

[0038] Figure 6 It is a schematic diagram of an electrospark machining threading hole of a process method for efficiently combining the V-groove and the flattened ball of a feedback rod according to the present invention;

[0039] Figure 7 It is a schematic diagram of a slow wire machining V-groove and ball flattening process method of the present invention for efficiently combining and machining the V-groove and ball flattening of a feedback rod;

[0040] Figure 8 It is a schematic diagram of a fixing frame in a device for efficiently combining and processing a V-groove and a ball flattening of a feedback rod according to the present invention;

[0041] Fig. 9 yes Figure 8 View along direction A;

[0042] Fig.10 The structure of the feedback rod is processed by the process of the present invention for efficiently combining the V-groove and the ball flattening of the feedback rod. Figure 1 ;

[0043] Fig.11 The structure of the feedback rod is processed by the process of the present invention for efficiently combining the V-groove and the ball flattening of the feedback rod. Figure 2 .

[0044] Among them, 1-hinge mounting seat, 2-lateral positioning bar, 3-armature positioning block, 4-feedback rod, 5-support rod, 6-armature 7-armature clamping screw, 8-clamping device, 9-linking screw, 10-longitudinal positioning bar, 11-longitudinal mounting screw, 12-lateral positioning mounting screw, 13-support screw, 14 fixing frame, 15 slow wire. DETAILED DESCRIPTION

[0045] In order to more intuitively and clearly describe the structural principles and working methods in the examples of the present invention, the embodiments will be introduced in conjunction with relevant drawings. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] The processing quality and efficiency of the V-groove and the ball flat of the feedback rod in the armature assembly determine the quality of the servo valve and the accuracy of product delivery. The flat and the ball flat of the feedback rod V-groove are perpendicular to each other. At present, the processing method of the V-groove and the ball flat of the feedback rod in the armature assembly is to clamp them in the V-block and use the wire-cutting machine tool for processing. First, the feedback rod assembly after fine processing is pressed into the armature support rod assembly, and then the wire threading hole of the V-groove is processed by electric spark machining, and then the V-groove cavity of the feedback rod is processed by wire-cutting. After the V-groove is processed, the parts are removed from the wire-cutting machine tool, and then reinstalled in the V-block, and then the ball flat of the feedback rod is processed. The V-groove and the ball flat are clamped and aligned with the V-block twice, which wastes time, has low efficiency of manual alignment, long total processing time, and high labor costs. In view of the above problems, the present invention proposes a device for efficiently combining and processing the V-groove and ball flattening of a feedback rod, comprising a link mounting seat 1 and two armature positioning blocks 3, one end of the two armature positioning blocks 3 are clamped and fixed on the link mounting seat 1 by corresponding clamping devices 8, and the other end extends out of the link mounting seat 1, and a transverse positioning bar 2 and a longitudinal positioning bar 10 are installed on the link mounting seat 1, the transverse positioning bar 2 positions the armature positioning block 3 in the transverse direction and ensures that its transverse horizontal position is fixed, and the longitudinal positioning bar 10 positions the armature positioning block 3 in the longitudinal direction and ensures that its longitudinal horizontal position is fixed; the two armature positioning blocks 3 are 90° apart from each other in the circumferential direction, one of the armature positioning blocks 3 is used to fix the armature baffle assembly when processing the V-groove of the feedback rod, and the other armature positioning block 3 is used to fix the armature baffle assembly when processing the ball flattening of the feedback rod. That is, after processing the feedback rod V groove on one of the armature positioning blocks 3, the feedback rod assembly is rotated 90 degrees and installed on the other armature positioning block 3, and the ball flattening processing can be carried out. During the processing, the device only needs to be positioned and aligned once at the beginning, which improves the processing efficiency.

[0047] In the present invention, a plurality of positioning holes at different positions are arranged on the link mounting seat 1. The positions of the transverse positioning strip 2 and the longitudinal positioning strip 10 on the link mounting seat 1 can be adjusted by adjusting the transverse positioning screws 12 between the transverse positioning strip 2 and the link mounting seat 1 and the longitudinal positioning screws 11 between the longitudinal positioning strip 10 and the link mounting seat 1, and the positions of the two armature positioning blocks 3 can be further adjusted to match the positions of the upper and lower heads of the wire-cutting machine. The armature positioning block 3 of the present invention is installed on the wire-cutting machine through the hinge mounting seat 1. The armature positioning block 3 changes its relative position with the upper and lower heads of the wire-cutting machine 15 by being installed on the hinge mounting seat 1. For feedback rods 4 of different lengths, there will be no interference with the upper and lower heads.

[0048] In the present invention, the armature positioning block 3 includes a positioning section and a fixed section. The positioning section is pressed on the link mounting seat 1 by a clamping device 8. A deep groove is arranged inside the fixed section. The deep groove cooperates with the armature 6 with a small gap. An armature clamping screw 7 is arranged on the deep groove to compress the armature 6. A through hole is arranged on the fixed section to cooperate with the support rod 5 with a small gap.

[0049] The armature 6 of the feedback rod 4 combination is installed in the deep groove of the armature positioning block 3, and the armature is fixed by the armature clamping screw 7, so as to fix the feedback rod 4, and ensure that there is a small gap between the deep groove in the armature positioning block 3 and the outer circle of the armature 6, so that the flatness of the V-groove of the feedback rod will not deflect. There is also a small gap between the support rod 5 pressed by the feedback rod 4 and the small hole in the armature positioning block 3. The flatness of the V-groove is guaranteed to be horizontal through this gap. There are certain requirements for the depth of the small hole matched with the support rod 5. Only a hole of a certain depth can ensure that the flatness of the V-groove is horizontal.

[0050] The positioning sections of the two armature positioning blocks 3 are respectively pressed on the link mounting seat 1 by two clamping devices 8, and the clamping device 8 includes a clamping block, a support screw 13, and a link screw 9. One end of the clamping block is fixed on the link mounting seat 1 by threaded connection with the support screw 13 and the link screw 9, and the other end presses the positioning section of the armature positioning block 3. The clamping device 8 is supported by the thread bite force between the support screw 13 and the link screw 9, and is tightened by the link screw 9.

[0051] In the present invention, the device also includes an L-shaped fixing frame 14, which is used to fix the feedback rod assembly when processing the threading hole on the feedback rod assembly. The structure of the fixing frame 14 is the same as the structure of the armature positioning block 3, only the thickness M is different. A deep groove is arranged on the inner side of one end of the fixing frame 14, and the deep groove cooperates with the armature 6 with a small gap. An armature clamping screw 7 is arranged on the deep groove for clamping the armature 6. A through hole is arranged on the fixing frame 14, which cooperates with the support rod 5 with a small gap.

[0052] The present invention also proposes a process for efficiently combining and processing the V-groove and the flattened ball of a feedback rod using the device, comprising the following steps:

[0053] Step 1: Prepare the feedback rod in the fine-machined state and the armature baffle assembly in the fine-machined state; the armature baffle assembly in the fine-machined state includes a support rod 5 and an armature 6. When preparing the feedback rod in the fine-machined state and the armature baffle assembly in the fine-machined state, the burrs on the outer surfaces of the feedback rod 4, the support rod 5 and the armature 6 should be polished and removed to prevent the symmetry of the support rod from being destroyed during the pressing process. The V-groove part of the feedback rod in the fine-machined state is still in a cylindrical state.

[0054] Step 2: Mechanically press the feedback rod prepared in step 1 into the armature baffle assembly to obtain a feedback rod assembly; specifically, mechanically press one end of the support rod 5 into the armature 6, and mechanically press the feedback rod 4 into the other end of the support rod 5.

[0055] Step 3: Install the feedback rod V-groove processing device on the wire-cut positioning platform. The horizontality of the feedback rod V-groove processing device is within 0.002. Install the feedback rod assembly on the feedback rod V-groove processing device. Use the wire-cut machine to process the cylindrical section of the feedback rod V-groove part into a flat with a size of L, ensuring that the symmetry of the flat to the support rod is within 0.05;

[0056] The specific process of this step is to install the feedback rod V-groove processing device on the wire-cut positioning platform, and then install the armature into the deep groove of any fixed section of the armature positioning block 3, and cooperate with the deep groove with a small gap. The feedback rod and the support rod pass through the hole of the fixed section of the armature positioning block 3, and the support rod and the hole of the fixed section of the armature positioning block 3 are matched with a small gap. Then, the armature clamping screw 7 is used to pass through the deep groove to press the armature 6; then, the wire-cut machine tool is used to process a flat L on the cylindrical section of the feedback rod close to the support rod.

[0057] The deep groove and small hole of the armature positioning block are processed by slow walking. The deep groove is a rectangular groove with three positioning surfaces. All three positioning surfaces are flat-ground to ensure that the three positioning surfaces are parallel and perpendicular to each other. When the armature 6 cooperates with the deep groove, the outer circle of the armature fits with the three sides of the deep groove of the fixture to form a limiting effect.

[0058] Step 4: Remove the feedback rod assembly from the feedback rod V-groove processing device, install the fixing frame into the EDM machine, and then install the feedback rod assembly onto the fixing frame. The flatness is within 0.01, and the threading hole is processed on the flat obtained in step 3, that is, a 0.08mm×1mm electrode is used to process a 0.08mm×1mm threading hole;

[0059] Step 4 is specifically as follows: first clean the EDM machine processing platform, then install the fixed frame on the processing platform, clamp it with magnetic force, level it after clamping, and then install the processed flat feedback rod assembly on the fixed frame, that is, the armature 6 of the feedback rod assembly is installed in the deep groove on the inner side of one end of the fixed frame, and cooperates with the deep groove with a small gap. The support rod 5 and the feedback rod 4 pass through the hole inside one end of the fixed frame, and the support rod cooperates with the hole with a small gap, and the armature clamping screw is used to tighten the armature so that the flat on the feedback rod assembly is set horizontally, and then use electric spark to process a wire threading hole of 0.08mm×1mm on the flat on the feedback rod assembly. The deep groove is a rectangular groove with three locating surfaces. The three locating surfaces are all flat-ground to ensure that the three locating surfaces are parallel and perpendicular to each other. When the armature 6 cooperates with the deep groove, the outer circle of the armature fits with the three sides of the deep groove of the fixture to form a limiting effect.

[0060] Step 5: Install the feedback rod V-groove processing device on the slow-moving wire positioning platform. The horizontality of the flatness should be within 0.002. Then remove the feedback rod assembly from the fixed bracket and install it on the feedback rod V-groove processing device. The verticality between the feedback rod assembly and the feedback rod V-groove processing device should be within 0.003. Use the slow-moving wire machine to process the feedback rod V-groove in the threading hole. After the feedback rod V-groove is processed, use the slow-moving wire machine to process the ball flatness at the end of the feedback rod.

[0061] In step 5, the V-groove and ball flat installation process of the feedback rod are as follows:

[0062] First, install the transverse positioning strip 2 and the longitudinal positioning strip 10 on the link mounting seat 1 by using the transverse positioning mounting screws 12 and the longitudinal mounting screws 11 respectively, then fix the two armature positioning blocks 3 on the hinge mounting seat 1 by the clamping device 8, and use the transverse positioning strip 2 and the longitudinal positioning strip 10 to locate the transverse and longitudinal horizontal positions of the entire device, the two armature positioning blocks 3 are 90° apart in the circumferential direction, and then install the feedback rod assembly on one of the armature positioning blocks 3, the armature 6 cooperates with the deep groove on the inner side of the fixed section of the armature positioning block 3, and the support rod 5 cooperates with the hole in the fixed section of the armature positioning block 3; finally, fix the armature 6 with the armature clamping screw 7, thereby fixing the feedback rod assembly, and use a slow wire cutting machine to process a feedback rod V groove in the threading hole; then, in the same way, install the feedback rod assembly with the feedback rod V groove processed on the other armature positioning block 3 to process the ball flat.

[0063] The device for processing the V-groove cavity and the ball flattening is installed on the slow-feeding wire machine platform. A pair of armature positioning blocks 3 are installed on each hinge mounting seat 1, which are flipped 90° relative to each other and are used to process the V-groove and the ball flattening respectively. When the flatness of the V-groove is perpendicular to the horizontal plane, the ball flattening is processed at the end of the feedback rod. If the flatness of the V-groove is parallel to the horizontal plane, the V-groove is processed at the flatness. After the V-groove of the feedback rod 4 is processed, the armature clamping screw 7 can be immediately unscrewed, the armature support rod assembly can be removed, and installed on another armature positioning block 3, and the ball flattening of the feedback rod 4 can be processed without the need to realign the device.

[0064] Among them, the deep groove of the armature positioning block 3 is a rectangular groove with three positioning surfaces. All three positioning surfaces are flat-ground to ensure that the three positioning surfaces are parallel and perpendicular to each other. When the armature 6 cooperates with the deep groove, the outer circle of the armature fits with the three sides of the deep groove of the fixture to form a limiting effect.

[0065] The present invention processes the V-groove and the ball flat of the feedback rod by a combination of wire cutting-electric spark-wire cutting. The feedback rod V-groove is first processed into a flat shape with a thickness of L by a circular state, and then a 0.08mm×1mm wire threading hole is processed by electric spark. The V-groove and the ball flat are then processed on a wire cutting machine. The processing device of the present invention is used to reduce the clamping and alignment time, improve the processing efficiency, make the feedback rod groove and the ball flat have good dimensional consistency, and rapidly improve the processing efficiency.

[0066] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A device for efficiently combining and processing the V-groove and the flattening of a feedback rod, characterized in that: It includes a link mounting seat and two armature positioning blocks, one end of the two armature positioning blocks are clamped and fixed on the link mounting seat by corresponding clamping devices, and the other end extends out of the link mounting seat, and a transverse positioning bar and a longitudinal positioning bar are installed on the link mounting seat, the transverse positioning bar positions the armature positioning block in the transverse direction and ensures that its transverse horizontal position is fixed, and the longitudinal positioning bar positions the armature positioning block in the longitudinal direction and ensures that its longitudinal horizontal position is fixed; the two armature positioning blocks are 90° apart from each other in the circumferential direction, one of the armature positioning blocks is used to fix the armature baffle assembly when processing the V-groove of the feedback rod, and the other armature positioning block is used to fix the armature baffle assembly when processing the ball flattening of the feedback rod.

2. The device for efficiently combining and processing the V-groove and the flattened ball of the feedback rod according to claim 1 is characterized in that: Several positioning holes at different positions are arranged on the link mounting seat. The positions of the transverse positioning bar and the longitudinal positioning bar on the link mounting seat can be adjusted by adjusting the transverse positioning screws between the transverse positioning bar and the link mounting seat and the longitudinal positioning screws between the longitudinal positioning bar and the link mounting seat, and the positions of the two armature positioning blocks can be further adjusted to match the positions of the upper and lower heads of the wire cutting machine.

3. The device for efficiently combining and processing the V-groove and the flattened ball of the feedback rod according to claim 2, characterized in that: The armature positioning block comprises a positioning section and a fixing section. The positioning section is pressed on the link mounting seat by a clamping device. A deep groove is arranged inside the fixing section. The deep groove matches with the armature with a small gap. An armature clamping screw is arranged on the deep groove to press the armature. A through hole is arranged on the fixing section to match with the support rod with a small gap. The positioning sections of the two armature positioning blocks are respectively pressed on the link mounting seat by two clamping devices. The clamping devices include a clamping block, a supporting screw, and a linking screw. One end of the clamping block is fixed to the link mounting seat by threaded connection with the supporting screw and the linking screw, and the other end presses the positioning section of the armature positioning block.

4. The device for efficiently combining and processing the V-groove and the flattened ball of a feedback rod according to claim 3, characterized in that: The device also includes an L-shaped fixing frame, which is used to fix the feedback rod assembly when processing the threading hole on the feedback rod assembly. The fixing frame structure is the same as the armature positioning block structure. A deep groove is arranged on the inner side of one end of the fixing frame, and the deep groove cooperates with the small gap of the armature. An armature clamping screw is arranged on the deep groove to press the armature. A through hole is arranged on the fixing frame to cooperate with the small gap of the support rod.

5. A process for efficiently combining and processing the V-groove and the flattened ball of a feedback rod using the device described in claim 4, characterized in that: The following steps are involved: Step 1: Prepare a feedback rod in a finishing state and an armature baffle assembly in a finishing state; Step 2: Mechanically press the feedback rod prepared in step 1 into the armature baffle assembly to obtain a feedback rod assembly; Step 3: Install the feedback rod V-groove processing device on the wire-cut positioning platform, install the feedback rod assembly on the feedback rod V-groove processing device, and use the wire-cut machine tool to process the cylindrical section of the V-groove part of the feedback rod into a flat piece with a size of L; Step 4: Remove the feedback rod assembly from the feedback rod V-groove processing device, install the fixing frame into the EDM machine, and then install the feedback rod assembly onto the fixing frame, and process the threading hole on the flat plate obtained in step 3; Step 5: Install the feedback rod V-groove processing device on the wire-cut positioning platform, then remove the feedback rod assembly from the fixed frame, and then install it on the feedback rod V-groove processing device, and use the wire-cut machine tool to process the feedback rod V-groove in the threading hole; after the feedback rod V-groove processing is completed, use the wire-cut machine tool to process the ball flat at the end of the feedback rod.

6. The process for efficiently combining and processing the V-groove and the flattened ball of the feedback rod according to claim 5 is characterized in that: In step 1, the armature baffle assembly in the fine-machined state includes a support rod and an armature. When preparing the feedback rod in the fine-machined state and the armature baffle assembly in the fine-machined state, the burrs on the outer surfaces of the feedback rod, the support rod and the armature must be polished off; in step 2, one end of the support rod is mechanically pressed into the armature, and the feedback rod is mechanically pressed into the other end of the support rod.

7. The process for efficiently combining and processing the V-groove and the flattened ball of the feedback rod according to claim 6 is characterized in that: In step 3, after the feedback rod V-groove processing device is installed on the slow-feeding wire positioning platform, the horizontality of the feedback rod V-groove processing device is within 0.002; in step 4, after the feedback rod assembly is installed on the wire threading hole processing device, the horizontality of the flat is within 0.01, and the processed wire threading hole is a square hole of 0.08mm×1mm; in step 5, after the feedback rod assembly is installed on the feedback rod V-groove processing device, the horizontality of the flat is within 0.002, and the verticality of the feedback rod assembly and the feedback rod V-groove processing device is within 0.

003.

8. The process for efficiently combining and processing the V-groove and the flattened ball of the feedback rod according to claim 7 is characterized in that: Specifically, step 3 is to install the feedback rod V-groove processing device on the wire-cut positioning platform, and then install the armature into the deep groove of any armature positioning block fixed section, matching with the small gap in the deep groove, pass the feedback rod and the support rod through the hole of the armature positioning block fixed section, match the small gap between the support rod and the hole of the armature positioning block fixed section, and then use the armature clamping screw to pass through the deep groove to tighten the armature; then use the wire-cut machine to process a flat piece with a size of L on the cylindrical section of the feedback rod close to the support rod.

9. The process for efficiently combining and processing the V-groove and the flattened ball of the feedback rod according to claim 8, characterized in that: Specifically, step 4 is to first clean the EDM machine processing platform, then install the fixed frame on the processing platform, clamp it with magnetic force, level it after clamping, and then install the flat feedback rod assembly on the fixed frame, that is, the armature of the feedback rod assembly is installed in the deep groove on the inner side of one end of the fixed frame, and cooperates with the deep groove with a small gap. The support rod and the feedback rod pass through the hole inside one end of the fixed frame, and the support rod cooperates with the hole with a small gap. The armature clamping screw is used to tighten the armature, so that the flat on the feedback rod assembly is set horizontally, and then electric spark is used to process a wire threading hole of 0.08mm×1mm on the flat on the feedback rod assembly.

10. The process for efficiently combining and processing the V-groove and the flattened ball of the feedback rod according to claim 8, characterized in that: In step 5, the V-groove and ball flat installation process of the feedback rod are as follows: First, install the transverse positioning strip and the longitudinal positioning strip on the link mounting seat respectively by using the transverse positioning mounting screws and the longitudinal mounting screws, then fix the two armature positioning blocks on the hinge mounting seat by means of the clamping device, and use the transverse positioning strip and the longitudinal positioning strip to locate the transverse and longitudinal horizontal positions of the entire device, the two armature positioning blocks are 90° apart in the circumferential direction, then install the feedback rod assembly on one of the armature positioning blocks, the armature cooperates with the deep groove on the inner side of the fixed section of the armature positioning block, and the support rod cooperates with the hole in the fixed section of the armature positioning block; finally, fix the armature with the armature clamping screw, thereby fixing the feedback rod assembly, and use the slow wire cutting machine to process the feedback rod V-groove in the threading hole; then, in the same way, install the feedback rod assembly with the feedback rod V-groove processed on the other armature positioning block to process the ball flat.

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