A reversible coaxial element processing device

Abstract

The invention discloses a reversible coaxial element processing device, comprising a machine flat-nose pliers; the machine flat-nose pliers comprises two guide rails distributed transversely; the left end of the two guide rails is provided with a fixed jaw; the two guide rails are slidably provided with a movable jaw in the right direction of the fixed jaw; the upper part of the inner side surface of the movable jaw is connected to the lower part of the clamping block; the top of the two guide rails is provided with a sliding support seat; the upper rear part of the upper end of the sliding support seat is provided with a cushion block; the upper front part of the sliding support seat is provided with an adjustable support; the upper part of the inner side surface of the fixed jaw is connected to the upper part of the positioning plate; the left end of the transversely distributed rotating centering shaft is pivotally connected to the upper middle position of the positioning plate; the right end of the rotating centering shaft is used to be inserted into the a hole pre-existing in the switch seat to be processed. The invention can position and clamp the switch seat once, and can process three coaxial elements on opposite surfaces at the same time, which is conducive to improving the processing accuracy of the switch seat.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a reversible coaxial element processing device. Background Art

[0002] See also Figure 1a to Figure 1c The switch seat 100 is a component used to control the switch in the existing ZDJ9 type switch machine. Its appearance is a hollow L-shaped structure, and its interior is used to set a series of switch action parts.

[0003] The finished, processed switch seat 100 is provided with holes a distributed laterally and holes b distributed vertically;

[0004] Hole a is directly connected to hole b;

[0005] At one end of hole b, a c truncated cone with a center hole f is provided (i.e., hole f is the center through hole of the c truncated cone);

[0006] Hole b is coaxial with hole f;

[0007] The central axis of hole b and hole f is perpendicular to the central axis of hole a.

[0008] Among them, for the switch base 100 before processing (specifically, the b hole, the f hole and the c frustum need to be processed) (i.e. the switch base 100 in a blank state), its left end has a hole a with a left opening; the hole a is a reference hole formed in advance by processing.

[0009] At present, according to the processing requirements of the assembly action and process documents, after the switch seat 100 has been pre-processed with hole a, it is necessary to further use hole a as a reference (i.e., as a positioning reference hole) to continue processing the contour shapes (i.e., the outer shape) of holes b, holes f, and the c frustum to ensure that holes b, holes f, and the c frustum are coaxial, and holes b, holes f, and the c frustum are perpendicular to hole a.

[0010] In order to ensure the relative position accuracy of the four elements a, b, c, and f in the processed switch base, it is urgently necessary to develop and design a device that can position and clamp the switch base once and can simultaneously process three coaxial elements on opposite surfaces (i.e., the three elements on opposite surfaces, namely, the b hole, the f hole, and the c frustum). Summary of the invention

[0011] The purpose of the present invention is to provide a reversible coaxial element processing device in view of the technical defects in the prior art.

[0012] To this end, the present invention provides a reversible coaxial element processing device, including a machine flat-nose pliers, a clamping block, a spacer, a sliding support seat, an adjustable support, a positioning plate and a rotating centering shaft;

[0013] Among them, the machine flat-nose pliers include two guide rails distributed laterally;

[0014] The two guide rails are spaced apart longitudinally and are parallel to each other;

[0015] The left ends of the two guide rails are fixedly provided with fixed jaws;

[0016] The two guide rails are slidably provided with longitudinally distributed movable jaws on the right side of the fixed jaws;

[0017] Wherein, the upper inner side surface of the movable jaw of the machine flat-nose pliers is connected to the lower part of a clamping block;

[0018] Among them, a longitudinally distributed sliding support seat is placed on the top of the two guide rails of the machine flat-nose pliers;

[0019] A cushion block is placed at the rear of the upper end of the sliding support seat;

[0020] The upper front part of the sliding support seat is provided with an adjustable support;

[0021] Wherein, the upper part of the inner side surface of the fixed jaws of the machine flat-nose pliers is connected to the upper part of a positioning plate;

[0022] Wherein, the left end of the laterally distributed rotating centering shaft is pivotally connected to the upper middle position of the positioning plate;

[0023] The right end of the rotating centering shaft is used to be inserted into the pre-existing hole a in the switch seat to be processed.

[0024] Preferably, a clamping surface is provided at the middle position of the upper portion of the left side wall of the clamping block;

[0025] The lower part of the clamping block is provided with a fixed end;

[0026] The fixed end is connected to the movable jaw of the machine flat-nose pliers through a first screw;

[0027] Wherein, a screw hole is respectively provided at the front and rear ends of the fixed end at the lower part of the clamping block;

[0028] The clamping block is fastened and connected with two first screw mounting holes on the inner side of the movable jaws of the machine flat-nose pliers through two first screws passing through the screw holes.

[0029] Preferably, the spacer is a stepped shaft-shaped part;

[0030] The upper end of the pad is the large positioning end;

[0031] The lower end of the pad is a small table shaft;

[0032] Locate the bottom of the big end to connect with the top of the small table shaft;

[0033] The spacer is used for when it is placed in the knife exit hole on the adjustable support, the top surface of the positioning large end thereof is in close contact with the side surface e on the switch seat;

[0034] The side surface e on the switch base is the opposite side surface of the outer side surface of the frustum c on the switch base.

[0035] Preferably, the vertical height of the positioning large end is equal to the difference between the vertical distance H2 between the central axis of hole a pre-existing in the switch seat and the bottom surface of the c truncated cone and the vertical distance H1 between the central axis of hole a and the top of hole b;

[0036] The outer wall surfaces around the large positioning end are circumferentially covered with mesh patterns protruding outwards.

[0037] Preferably, the lower end of the sliding support seat has a slideway with a top opening;

[0038] The sliding support seat is placed on the guide rail track of the machine flat-nose pliers through the slideway at the lower end thereof.

[0039] Preferably, a pressing end and a positioning end are respectively provided on the front and rear sides of the slideway;

[0040] A longitudinally penetrating clamping screw hole is provided at the center of the clamping end;

[0041] A clamping screw hole, used for threading a longitudinally distributed clamping screw;

[0042] The clamping screw is used to compress the front side of the guide slideway at its rear end after being tightened in the clamping screw hole, thereby making the positioning end of the sliding support seat close to the rear side of the guide slideway.

[0043] Preferably, an adjustable support hole is provided at the front portion of the upper end of the sliding support seat;

[0044] An adjustable support is provided in the adjustable support hole;

[0045] A pad placement hole is provided at the rear of the upper end of the sliding support seat;

[0046] The spacer block placement hole is used to place the spacer block.

[0047] Preferably, the upper portion of the adjustable support is provided with an upper end positioning surface;

[0048] The upper end positioning surface is used to tightly contact with the outer side surface of the c-shaped cone in the switch seat;

[0049] The lower portion of the adjustable support is provided with a threaded adjustment end;

[0050] The threaded adjustment end is threadedly connected to the adjustable support hole;

[0051] The middle position of the adjustable support has a knife outlet hole that runs vertically up and down;

[0052] The diameter of the small table shaft at the lower end of the cushion block is smaller than the inner diameter of the tool hole.

[0053] Preferably, a bearing hole and a centering shaft mounting hole are provided at the middle position of the upper part of the positioning plate;

[0054] A bearing is arranged in the bearing hole;

[0055] The bearing hole is coaxial with the centering shaft mounting hole;

[0056] The positioning plate is provided with a positioning plate mounting hole at the front and rear ends below the bearing hole respectively;

[0057] The positioning plate is fastened to two second mounting holes on the inner side of the fixed jaws of the machine flat-nose pliers by two second screws passing through the mounting holes of the positioning plate.

[0058] Preferably, a connecting shaft is provided at the left end of the rotating centering shaft;

[0059] The connecting shaft at the left end of the rotating centering shaft is installed in the centering shaft installation hole and the bearing inner hole of the bearing;

[0060] A threaded fastening end is provided on the left side of the connecting shaft;

[0061] A threaded fastening end, threadedly connected to a fastening nut;

[0062] The right end of the rotating centering shaft is provided with a chamfering shaft;

[0063] The chamfered shaft is used to be inserted into the pre-prepared hole a in the switch seat to be processed;

[0064] The transverse length of the chamfered shaft is longer than the transverse length of the a hole pre-existing in the switch seat.

[0065] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a reversible coaxial element processing device, which has a scientific structural design, can perform one-time positioning and clamping of the switch seat, and can simultaneously process three coaxial elements on opposite surfaces (i.e., the three elements on opposite surfaces, namely, hole b, hole f, and cone c), which is beneficial to improving the processing accuracy of the switch seat and has great production practical significance.

[0066] In addition, the reversible coaxial element processing device provided by the present invention is easy and quick to operate, and can process the switch seat accurately and reliably, thereby greatly improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1ais a front view of a switch seat as a workpiece to be processed (the front view of the switch seat after processing is the same);

[0068] Figure 1b A vertical cross-sectional view of the completed switch base along the left and right directions;

[0069] Figure 1c A cross-sectional view of a completed switch base;

[0070] Figure 2a A front view of a machine flat-nose pliers in a reversible coaxial element processing device provided by the present invention;

[0071] Figure 2b A top view of a machine flat-nose pliers in a reversible coaxial element processing device provided by the present invention;

[0072] Figure 3 A partial front cross-sectional view of a reversible coaxial element processing device provided by the present invention when a workpiece to be processed (i.e., a switch seat) is not clamped;

[0073] Figure 4a A partial front cross-sectional view of a reversible coaxial element processing device provided by the present invention when processing of hole b in a switch seat has been completed;

[0074] Figure 4b A top view of the b hole in the switch seat after the processing is completed using the reversible coaxial element processing device provided by the present invention;

[0075] Figure 4c A partial cross-sectional view of a reversible coaxial element processing device provided by the present invention when the processing operation of hole b on the switch seat is just started;

[0076] Figure 5 A partial front cross-sectional view of a c-shaped frustum when using a reversible coaxial element processing device provided by the present invention;

[0077] Figure 6a A schematic diagram of the front cross-sectional structure of a clamping block in a reversible coaxial element processing device provided by the present invention;

[0078] Figure 6b A left view of a clamping block in a reversible coaxial element processing device provided by the present invention;

[0079] Figure 6c A top view of a clamping block in a reversible coaxial element processing device provided by the present invention;

[0080] Figure 7aA schematic diagram of the front structure of a cushion block in a reversible coaxial element processing device provided by the present invention;

[0081] Figure 7b A top view of a cushion block in a reversible coaxial element processing device provided by the present invention;

[0082] Figure 8a A schematic diagram of the front structure of a sliding support seat in a reversible coaxial element processing device provided by the present invention;

[0083] Figure 8b A left side view of a sliding support seat in a reversible coaxial element processing device provided by the present invention;

[0084] Figure 8c A top view of a sliding support seat in a reversible coaxial element processing device provided by the present invention;

[0085] Figure 9a A front view of an adjustable support in a reversible coaxial element processing device provided by the present invention;

[0086] Figure 9b A top view of an adjustable support in a reversible coaxial element processing device provided by the present invention;

[0087] Fig.10a A left view of a positioning plate in a reversible coaxial element processing device provided by the present invention;

[0088] Fig.10b For along Fig.10a A cross-sectional view of line AA shown;

[0089] Fig.11a A front view of a rotating centering shaft in a reversible coaxial element processing device provided by the present invention;

[0090] Fig.11b A top view of a rotating centering shaft in a reversible coaxial element processing device provided by the present invention;

[0091] Fig.11c A right side view of a rotating centering shaft in a reversible coaxial element processing device provided by the present invention;

[0092] Fig.12 A schematic diagram of the front cross-sectional structure of a bearing in a reversible coaxial element processing device provided by the present invention;

[0093] In the figure, 100. switch seat;

[0094] 1000. Machine flat jaw pliers; 1001. Fixed jaws; 1002. Movable jaws; 1003. Guide rails;

[0095] 10041. First mounting hole; 10042. Second mounting hole;

[0096] 1005. Lead screw;

[0097] 1. Clamping block; 2. Spacer block; 3. Sliding support seat; 4. Adjustable support; 5. Positioning plate;

[0098] 6. Rotating centering shaft; 7. Bearing;

[0099] 101. Clamping surface; 102. Fixed end; 103. Screw hole; 104. First screw;

[0100] 201. Positioning big end; 202. Small table shaft;

[0101] 301. slideway; 302. clamping end; 303. positioning end; 304. clamping screw hole;

[0102] 305. Adjustable support hole; 306. Pad placement hole;

[0103] 401. Upper end positioning surface; 402. Thread adjustment end; 403. Knife hole;

[0104] 501. bearing hole; 502. centering shaft mounting hole; 503. positioning plate mounting hole; 504. second screw;

[0105] 601. Connecting shaft; 602. Threaded fastening end; 603. Chamfered shaft. DETAILED DESCRIPTION

[0106] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0107] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0108] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0109] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0110] See also Figures 1a to 12 , the present invention provides a reversible coaxial element processing device, including a machine flat-nose pliers 1000, a clamping block 1, a cushion block 2, a sliding support seat 3, an adjustable support 4, a positioning plate 5 and a rotating centering shaft 6;

[0111] Among them, the machine flat-nose pliers 1000 include two guide rails 1003 distributed laterally;

[0112] The two guide rails 1003 are spaced apart longitudinally and are parallel to each other;

[0113] The left ends of the two guide rails 1003 are fixedly provided with fixed jaws 1001;

[0114] The two guide rails 1003 are slidably provided with longitudinally distributed movable jaws 1002 on the right side of the fixed jaws 1001;

[0115] The upper inner side surface of the movable jaw 1002 of the machine flat-nose pliers 1000 is connected to the lower part of a clamping block 1;

[0116] Among them, a longitudinally distributed sliding support seat 3 is placed on the top of the two guide rails 1003 of the machine flat-nose pliers 1000;

[0117] A cushion block 2 is placed at the rear of the upper end of the sliding support seat 3;

[0118] An adjustable support 4 is provided at the front upper end of the sliding support seat 3;

[0119] The upper inner side surface of the fixed jaw 1001 of the machine flat-nose pliers 1000 is connected to the upper part of a positioning plate 5;

[0120] Wherein, the left end of the laterally distributed rotating centering shaft 6 is pivotally connected (i.e., rotatably arranged) at the upper middle position of the positioning plate 5;

[0121] The right end of the rotating centering shaft 6 is used to be inserted into the pre-existing hole a in the switch seat 100 to be processed, so as to perform reference positioning on the switch seat 100.

[0122] It should be noted that, in the present invention, for the switch base 100, hole a is a pre-processed hole used for positioning with the device. That is, hole a is a reference hole that has been pre-processed before the device is used for processing. When the device of the present invention is used, the coaxial hole b, the c truncated cone, and the central through hole f of the c truncated cone need to be processed.

[0123] It should be noted that when the switch seat 100 is first processed, the right end of the rotating centering shaft 6 is inserted into the hole a opened at the left end of the switch seat 100;

[0124] It should be noted that see Figure 1a to Figure 1c For the finished, processed switch base 100, the switch base 100 is provided with a hole a distributed laterally and a hole b distributed vertically;

[0125] Hole a is directly connected to hole b;

[0126] At one end of hole b, a c truncated cone with a center hole f is provided (i.e., hole f is the center through hole of the c truncated cone);

[0127] Hole b is coaxial with hole f;

[0128] The central axis of hole b and hole f is perpendicular to the central axis of hole a.

[0129] Among them, for the switch base 100 before processing (that is, the switch base 100 in the blank state, specifically, the b hole, the f hole and the c frustum contour need to be processed), its left end has a hole a with a left opening; hole a is a reference hole formed in advance by processing.

[0130] It should be noted that machine vise, also known as machine vice, is a general-purpose clamp, often used to install small workpieces. It is a random accessory of milling machines and drilling machines. For machine vise, refer to Figure 2b , the screw 1005 can be rotated with a wrench, and the screw nut provided on the screw 1005 drives the movable clamp body (the movable clamp body is the movable jaw 1002, and the movable jaw 1002 is connected to the screw nut) to move, thereby clamping and loosening the workpiece to be processed (such as the switch seat 100). The machine flat-nose pliers are common universal clamps, which will not be described in detail here.

[0131] In specific implementation, the machine flat-nose pliers 1000, for example, can be 4-inch flat-nose pliers produced by Laizhou Jinfeng Pliers Manufacturing Co., Ltd., and the main structures include: fixed pliers, movable pliers, screw, screw nut, guide rail, etc. For those skilled in the art, the well-known working principle of the machine flat-nose pliers 1000 is: the screw is rotated with a wrench, and the movable pliers body (i.e., movable jaws) is driven by the screw nut, and the spiral motion of the screw is converted into the parallel movement of the movable pliers body (i.e., movable jaws) along the guide rail, thereby forming the clamping and loosening of the clamped object between the fixed pliers and the movable pliers body (i.e., movable jaws).

[0132] In the present invention, the specific implementation is as follows: Figure 3 , Figure 6a and Figure 6b , a clamping surface 101 is provided at the middle position of the upper part of the left side wall of the clamping block 1;

[0133] The lower part of the clamping block 1 is provided with a fixed end 102;

[0134] The fixed end 102 is connected to the movable jaw 1002 of the machine flat-nose pliers 1000 through a first screw 104 .

[0135] In specific implementation, a screw hole 103 is provided at the front and rear ends of the fixed end 102 at the lower part of the clamping block 1;

[0136] The clamping block 1 is fastened and connected (specifically, threadedly connected) to two first screw mounting holes 10041 on the inner side of the movable jaw 1002 of the machine flat-nose pliers 1000 through two first screws 104 passing through the screw holes 103 .

[0137] In the present invention, for specific implementation, see Figure 3 , Figure 7a and Figure 7b , the spacer 2 is a stepped shaft-shaped part;

[0138] The upper end of the cushion block 2 is a positioning large end 201;

[0139] The lower end of the cushion block 2 is a small table shaft 202;

[0140] The bottom of the positioning big end 201 is connected to the top of the small table shaft 202;

[0141] The cushion block 2 is used for, when it is placed in the knife exit hole 403 on the adjustable support 4, the top surface of the positioning large end 201 thereof is in close contact with the side surface e on the switch seat 100;

[0142] The side surface e on the switch base 100 is the opposite side surface of the outer side surface of the truncated cone c on the switch base 100 .

[0143] In specific implementation, the vertical height of the positioning big end 201 is equal to the difference between the vertical distance H2 between the central axis of the a hole pre-existing in the switch seat 100 and the bottom surface of the c truncated cone and the vertical distance H1 between the central axis of the a hole and the top of the b hole (i.e. Figure 1b The difference in vertical length between H2 and H1 shown).

[0144] In a specific implementation, the outer wall surface around the positioning large end 201 is covered with mesh patterns protruding outwards to facilitate taking and placing.

[0145] In the present invention, in a specific implementation, the lower end of the sliding support seat 3 has a slideway 301 with a top opening;

[0146] The sliding support seat 3 is placed on the guide track 1003 of the machine flat-nose pliers 1000 through the slideway 301 at its lower end.

[0147] In specific implementation, the front and rear sides of the slideway 301 are respectively provided with a pressing end 302 and a positioning end 303;

[0148] A longitudinally penetrating clamping screw hole 304 is provided at the center of the clamping end 302;

[0149] A clamping screw hole 304, used for threading a longitudinally distributed clamping screw;

[0150] The clamping screw is used to, when it is tightened at the clamping screw hole 304, have its rear end clamped against the front side of the guide slide 1003, thereby making the positioning end 303 of the sliding support seat 3 close to the rear side of the guide slide 1003;

[0151] In specific implementation, an adjustable support hole 305 is provided at the front upper end of the sliding support seat 3;

[0152] The adjustable support hole 305 is provided with an adjustable support 4;

[0153] A pad placement hole 306 is provided at the rear portion of the upper end of the sliding support seat 3;

[0154] The pad placement hole 306 is used to place the pad 2 (it is only used as a place to temporarily place the pad 2).

[0155] In specific implementation, the upper portion of the adjustable support 4 is provided with an upper end positioning surface 401;

[0156] The upper end positioning surface 401 is used to tightly contact with the outer side surface of the c-shaped cone in the switch seat 100;

[0157] The lower part of the adjustable support 4 is provided with a threaded adjustment end 402;

[0158] The threaded adjustment end 402 is threadedly connected to the adjustable support hole 305 .

[0159] It should be noted that, in the present invention, by rotating the threaded adjustment end 402 located at the lower part of the adjustable support 4, since the threaded adjustment end 402 is threadedly connected to the adjustable support hole 305, the height of the upper end positioning surface 401 of the adjustable support 4 can be adjusted.

[0160] In specific implementation, the middle position of the adjustable support 4 has a knife outlet hole 403 that passes vertically up and down;

[0161] The diameter of the small table shaft 202 at the lower end of the cushion block 2 is 1 mm to 2 mm smaller than the inner diameter of the knife hole 403 .

[0162] In the present invention, in a specific implementation, a bearing hole 501 and a centering shaft mounting hole 502 are provided at the middle position of the upper part of the positioning plate 5;

[0163] A bearing 7 is arranged in the bearing hole 501;

[0164] It should be noted that the diameter of the bearing hole 501 is a size that is transitionally matched with the size of the bearing outer circle 702 of the bearing 7 .

[0165] The bearing hole 501 is coaxial with the centering shaft mounting hole 502 (i.e., located on the same central axis);

[0166] The size of the centering shaft mounting hole 502 is consistent with the size of the bearing inner hole of the bearing 7;

[0167] In specific implementation, the positioning plate 5 is provided with a positioning plate mounting hole 503 at the front and rear ends below the bearing hole 501;

[0168] The positioning plate 5 is fastened to the two second mounting holes 10042 on the inner side of the fixed jaw 1001 of the machine flat-nose pliers 1000 by two second screws 504 passing through the positioning plate mounting holes 503;

[0169] In the present invention, in specific implementation, the left end of the rotating centering shaft 6 is provided with a connecting shaft 601;

[0170] The connecting shaft 601 at the left end of the rotating centering shaft 6 is installed in the centering shaft installation hole 502 and the bearing inner hole 701 of the bearing 7 (specifically, a transition fit installation);

[0171] A threaded fastening end 602 is provided on the left side of the connecting shaft 601;

[0172] The threaded fastening end 602 is threadedly connected to a fastening nut 605 .

[0173] It should be noted that the left end of the rotating centering shaft 6 is fixedly mounted on the positioning plate 5 by tightening the threaded fastening end 602 with the fastening nut 605 .

[0174] In the present invention, in specific implementation, the right end of the rotating centering shaft 6 is provided with a chamfering shaft 603;

[0175] The chamfered shaft 603 is used to be inserted into a hole a pre-existing in the switch seat 100 that needs to be processed.

[0176] It should be noted that the outer diameter of the chamfered shaft 603 is consistent with the inner diameter of the hole a pre-existing in the switch seat 100;

[0177] It should be noted that the front and rear sides of the chamfered shaft 603 are processed with vertically distributed flat portions 604. The chamfered shaft 603 is formed by processing the front and rear sides of the cylindrical shaft (i.e., the flat portions 604 are processed on both the front and rear sides). Based on the design of the chamfered shaft 603, it is easy to load and unload the workpiece when the positioning gap (i.e., the a hole) is very small, and the positioning is more accurate.

[0178] It should be noted that the design of the chamfered shaft 603 facilitates the disassembly and assembly of the switch seat 100 as a workpiece to be processed.

[0179] In a specific implementation, the transverse length of the chamfered axis 603 is 1 mm to 2 mm longer than the transverse length (ie, depth) of the hole a pre-existing in the switch seat 100 .

[0180] It should be noted that the right end of the rotating centering shaft 6 is provided with a chamfered shaft 603 whose outer circle positioning dimension is equivalent to the dimension of hole a of the workpiece. The lateral length of the chamfered shaft 603 is 1 to 2 mm larger than the depth of hole a, to prevent the d surface (i.e. the side away from hole b) of the switch seat 100 from contacting the positioning plate 5 when the switch seat 100 is clamped, thereby interfering with the positioning of the rotating centering shaft 6.

[0181] In order to more clearly understand the technical solution of the present invention, the specific operation process of the present invention is described below.

[0182] First, the corresponding parts of the device (including the clamping block, the positioning plate, the rotating centering shaft, the bearing, etc.) are installed on the machine flat-nose pliers;

[0183] Then, the adjustable support hole 305 on the sliding support seat 3 is moved to the position corresponding to the pre-existing hole a in the switch seat 100 (i.e., the position on the right), and then, the clamping screw at the clamping screw hole 304 in the middle of the clamping end 302 of the sliding support seat 3 is tightened, so that the positioning end 303 is close to the rear side of the guide slide 1003, and the sliding support seat 3 is fixed on the guide slide 1003;

[0184] Then, the movable jaw 1002 equipped with the clamping block 1 is rotated and moved (specifically, the lead screw on the rotating machine flat-nose pliers 1000 can be used to rotate the movable jaw 1002 so that the pre-existing hole a in the switch base 100 can be mounted on the rotating centering shaft 6, and the c truncated cone side in the switch base 100 is downward, while the hole a in the switch base 100 is kept sleeved on the rotating centering shaft 6, thereby locking the axial position of the hole a in the switch base 100, adjusting the adjustable support 4, so that the positioning surface 401 on the upper part of the adjustable support 4 is closely attached to the c truncated cone, thereby guiding the switch base 100, realizing the c truncated cone as the positioning surface, and preventing the switch base 100 from rotating around the rotating centering shaft 6, and tightening the movable jaw 1002 to clamp the switch base 10, and the positioning and clamping of the switch base 100 is completed. The machine tool is turned on, and the processing of the hole b and the center through hole f of the c truncated cone can be completed by a boring tool;

[0185] It should be noted that, in specific implementation, a boring tool of a suitable diameter is installed on the machine tool of an existing machining center, the machine tool is turned on, the boring tool is allowed to contact the other end of the switch seat 10 opposite to the c-cone (i.e., the opposite surface), and then the b-hole portion to be processed in the switch seat 10 is processed from top to bottom, and the processing of the b-hole can be completed. At the same time, since the central through hole f of the c-cone is coaxial with the b-hole, it is also processed together with the b-hole by the boring tool.

[0186] Then, after machining hole b and the center through hole f of the cone c, see Figure 5 , rotate the adjustable support 4 to disengage the positioning surface 401 from the switch base 100, loosen the movable jaws 1002, and flip the switch base 100. At this time, take out the pad 2 placed in the pad placement hole 306 and place it on the adjustable support 4. The small table shaft 202 of the pad 2 is placed in the tool outlet hole 403 of the adjustable support 4. Adjust the threaded adjustment end 402 in the adjustable support 4 so that the positioning large end 201 of the pad 2 is in close contact with the e-surface of the switch base 100, thereby restricting the freedom of the switch base 100 to rotate around the rotating centering axis 6. Tighten the movable jaws 1002 to clamp the switch base 100. At this time, the positioning and clamping of the switch base 100 is completed, and the machine tool is turned on. The contour shape (i.e., the outer shape) of the C-shaped cone can be processed by the milling cutter, that is, the processing of the C-shaped cone is finally completed.

[0187] It should be noted that, in specific implementation, a milling cutter of suitable diameter is installed on the machine tool of an existing machining center, the machine tool is turned on, and the milling cutter is allowed to contact the c-cone portion of the switch seat 10 that needs to be processed for processing, thereby completing the processing of the contour shape (i.e., the outer shape) of the c-cone.

[0188] Compared with the prior art, the reversible coaxial element processing device provided by the present invention has the following beneficial effects:

[0189] 1. The present invention realizes the processing of different elements located on the upper and lower surfaces of a workpiece without disassembling the workpiece by utilizing a positioning structure combining a bearing and a rotating centering shaft;

[0190] 2. The present invention uses a positioning structure combining a bearing and a rotating centering shaft to ensure the coaxiality accuracy of the upper and lower coaxial elements of the workpiece and the verticality accuracy with the positioning reference hole when the workpiece is turned over for processing;

[0191] 3. The centering part of the rotating centering shaft adopts a chamfered shaft structure, which can facilitate the loading and unloading of the workpiece when the gap between the chamfered shaft and the workpiece positioning hole is very small, thereby improving the workpiece processing accuracy.

[0192] To sum up, compared with the prior art, the present invention provides a reversible coaxial element processing device, which has a scientific structural design, can perform one-time positioning and clamping of the switch seat, and can simultaneously process the three coaxial elements on opposite surfaces of the switch seat (i.e., the three elements on opposite surfaces, namely, hole b, hole f, and cone c), which is beneficial to improving the processing accuracy of the switch seat and has great production practical significance.

[0193] In addition, the reversible coaxial element processing device provided by the present invention is easy and quick to operate, and can process the switch seat accurately and reliably, thereby greatly improving the work efficiency of the staff.

[0194] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A reversible coaxial element processing device, characterized in that: It comprises a machine flat-nose pliers (1000), a clamping block (1), a cushion block (2), a sliding support seat (3), an adjustable support (4), a positioning plate (5) and a rotating centering shaft (6); Wherein, the machine flat-nose pliers (1000) include two guide rails (1003) distributed laterally; The two guide rails (1003) are spaced apart longitudinally and are parallel to each other; The left ends of the two guide rails (1003) are fixedly provided with fixed jaws (1001); Two guide rails (1003) are slidably provided with longitudinally distributed movable jaws (1002) on the right side of the fixed jaws (1001); The upper inner side surface of the movable jaws (1002) of the machine flat-nose pliers (1000) is connected to the lower part of a clamping block (1); Wherein, a longitudinally distributed sliding support seat (3) is placed on the top of the two guide rails (1003) of the machine flat-nose pliers (1000); A cushion block (2) is placed at the rear of the upper end of the sliding support seat (3); An adjustable support (4) is provided at the front upper end of the sliding support seat (3); The upper portion of the inner side surface of the fixed jaws (1001) of the machine flat-nose pliers (1000) is connected to the upper portion of a positioning plate (5); The left end of the laterally distributed rotating centering shaft (6) is pivotally connected to the middle position of the upper part of the positioning plate (5); The right end of the rotating centering shaft (6) is used to be inserted into a hole a pre-existing in a switch seat (100) to be processed; The spacer (2) is a stepped shaft-shaped part; The upper end of the cushion block (2) is a positioning large end (201); The lower end of the cushion block (2) is a small table shaft (202); The bottom of the positioning large end (201) is connected to the top of the small table shaft (202); The cushion block (2) is used for, when it is placed in the knife exit hole (403) on the adjustable support (4), the top surface of the positioning large end (201) thereof is in close contact with the side surface e on the switch seat (100); The side surface e on the switch seat (100) is the side surface opposite to the outer side surface of the truncated cone c on the switch seat (100); The vertical height of the positioning large end (201) is equal to the difference between the vertical distance H2 between the central axis of hole a pre-existing in the switch seat (100) and the bottom surface of the c truncated cone and the vertical distance H1 between the central axis of hole a and the top of hole b; The lower end of the sliding support seat (3) has a slideway (301) with a top opening; The sliding support seat (3) is placed on the guide rail (1003) of the machine flat-nose pliers (1000) through the slideway (301) at its lower end; An upper end positioning surface (401) is provided on the upper portion of the adjustable support (4); The upper end positioning surface (401) is used to tightly contact the outer side surface of the c-shaped cone in the switch seat (100); A knife outlet hole (403) is provided at the middle position of the adjustable support (4) and is vertically penetrated from top to bottom.

2. The reversible coaxial element processing device according to claim 1, characterized in that: A clamping surface (101) is provided at the middle position of the upper portion of the left side wall of the clamping block (1); The lower part of the clamping block (1) is provided with a fixed end (102); The fixed end (102) is connected to the movable jaw (1002) of the machine flat-nose pliers (1000) via a first screw (104); Wherein, a screw hole (103) is respectively provided at the front and rear ends of the fixed end (102) at the lower part of the clamping block (1); The clamping block (1) is fastened to two first screw mounting holes (10041) on the inner side of the movable jaws (1002) of the machine flat-nose pliers (1000) via two first screws (104) passing through the screw holes (103).

3. The reversible coaxial element processing device according to claim 1, characterized in that: The outer wall surface around the positioning large end (201) is circumferentially covered with mesh patterns protruding outwards.

4. The reversible coaxial element processing device according to claim 1, characterized in that: A pressing end (302) and a positioning end (303) are respectively provided on the front and rear sides of the slideway (301); A longitudinally penetrating clamping screw hole (304) is provided at the center of the clamping end (302); A clamping screw hole (304) for threading a longitudinally distributed clamping screw; The clamping screw is used to, when it is tightened in the clamping screw hole (304), have its rear end clamped against the front side of the guide slideway (1003), thereby causing the positioning end (303) of the sliding support seat (3) to be in close contact with the rear side of the guide slideway (1003).

5. The reversible coaxial element processing device according to claim 1, characterized in that: An adjustable support hole (305) is provided at the front upper end of the sliding support seat (3); An adjustable support (4) is provided in the adjustable support hole (305); A pad placement hole (306) is provided at the rear portion of the upper end of the sliding support seat (3); The pad placement hole (306) is used to place the pad (2).

6. The reversible coaxial element processing device according to claim 5, characterized in that: The lower part of the adjustable support (4) is provided with a threaded adjustment end (402); The threaded adjustment end (402) is threadedly connected to the adjustable support hole (305); The diameter of the small table shaft (202) at the lower end of the cushion block (2) is smaller than the inner diameter of the knife exit hole (403).

7. The reversible coaxial element processing device according to claim 1, characterized in that: A bearing hole (501) and a centering shaft mounting hole (502) are provided at the middle position of the upper portion of the positioning plate (5); A bearing (7) is disposed in the bearing hole (501); The bearing hole (501) is coaxial with the centering shaft mounting hole (502); The positioning plate (5) is provided with a positioning plate mounting hole (503) at the front and rear ends below the bearing hole (501), respectively; The positioning plate (5) is fastened to two second mounting holes (10042) on the inner side of the fixed jaws (1001) of the machine flat-nose pliers (1000) by means of two second screws (504) passing through the positioning plate mounting holes (503).

8. The reversible coaxial element processing device according to claim 7, characterized in that: The left end of the rotating centering shaft (6) is provided with a connecting shaft (601); A connecting shaft (601) at the left end of the rotating centering shaft (6) is installed in the centering shaft installation hole (502) and the bearing inner hole (701) of the bearing (7); A threaded fastening end (602) is provided on the left side of the connecting shaft (601); A threaded fastening end (602) is threadedly connected to a fastening nut (605); The right end of the rotating centering shaft (6) is provided with a chamfering shaft (603); The chamfered shaft (603) is used to be inserted into a hole a pre-existing in a switch seat (100) to be processed; The transverse length of the chamfered axis (603) is longer than the transverse length of the hole a pre-existing in the switch seat (100).

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