Machining positioning device and machining system for brake caliper casting

Abstract

The invention discloses a machining positioning device and a machining system for a brake caliper casting. The device comprises a clamp body. Vertical plates are respectively arranged at the front and rear ends of the top of the clamp body; a compression screw and a compression limiting nail are arranged at the upper parts of the left ends of the two vertical plates in a penetrating manner respectively; the opposite ends of the compression screw and the compression limiting nail are respectively provided with a pressure plate; the upper portions of the right ends of the two vertical plates are each provided with a set screw in a penetrating mode. Third studs are arranged in the middles of the front and rear ends of the clamp body. The upper parts of the two third studs are connected with the front and rear ends of the pressing plate; a V-shaped block and a limiting block are arranged at the left and right ends of the top of the clamp body respectively. The front end and the rear end of the clamp body are each provided with a supporting base. A first adjustable supporting part is arranged at the upper part of each supporting seat. The brake caliper casting can be positioned by taking the main shaft hole as a reference, the positioning precision is ensured, the processing operation of the upper surface of the caliper arm and the contact vertical surface of the brake rail is facilitated, and the processing quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a processing positioning device and a processing system for a brake caliper casting. Background Art

[0002] The brake caliper is the motion transmission part in the hump vehicle reducer. It is used in the hump marshaling yard and is an important force-bearing part that slows down the carriages when the train carriages are marshaled. The downward gravity of the carriages is transmitted to the brake caliper through other parts.

[0003] See also Figure 1 As shown, for a finished brake caliper 100, a caliper arm (i.e., arm) 105 is disposed at the top of the left end thereof, and the top of the caliper arm 105 is used to set the brake rail in the reducer; a brake rail contact vertical surface 102 is disposed at the right rear of the caliper arm 105;

[0004] The brake caliper 100 is provided with a spindle mounting cylinder 106 below the caliper arm 105; a spindle hole 103 is longitudinally penetrated through the spindle mounting cylinder 106; the bottom surface of the right end of the brake caliper 100 is the tail bottom surface 104;

[0005] For the brake caliper, the upper surface 101 of the caliper arm 105, the brake rail contact vertical surface 102 close to the caliper arm 105, the main shaft hole 103 and the tail bottom surface 104 are all related to the assembly of components and the movement of the whole machine. Therefore, machining is required to meet the dimensional accuracy and positional accuracy requirements of the workpiece to ensure the assembly accuracy.

[0006] Among them, the main shaft hole 103 is the reference for processing the other three planes (i.e., the clamp arm upper surface 101 of the clamp arm 105, the brake rail contact vertical surface 102 and the tail bottom surface 104). It should be noted that the processing procedure of the main shaft hole 103 is subsequently carried out using other processing techniques, which is not involved in the present invention.

[0007] Since the brake caliper blank is a casting with poor surface quality (for example, the surface is rough and the roughness is large), in order to obtain the finished brake caliper 100, the brake caliper casting needs to be milled. The specific requirements are: the caliper arm upper surface 101 and the brake rail contact vertical surface 102 of the caliper arm 105 are milled to make the surfaces of the two surfaces smooth and improve the surface quality to obtain the finished brake caliper (it should be noted that the processing step of the tail bottom surface 104 is carried out by other processing techniques, and the tail plane 104 has been processed in advance, which is not involved in the present invention).

[0008] It should be noted that the brake caliper casting (i.e., the brake caliper blank) is basically the same as the finished brake caliper 100, with the only difference being that the upper surface 101 of the caliper arm 105 and the brake rail contact vertical surface 102 are milled, and the surface quality of these two surfaces is poor and rough, while everything else is the same).

[0009] The processing technology requirements are: the brake caliper casting needs to be positioned based on the spindle hole 103, and then the upper surface 101 of the caliper arm 105 and the brake rail contact vertical surface 102 are processed.

[0010] However, there is no device currently which can position the brake caliper casting to be processed based on the spindle hole 103 and ensure the positioning accuracy. Summary of the invention

[0011] The purpose of the present invention is to provide a machining positioning device and a machining system for a brake caliper casting in view of the technical defects in the prior art.

[0012] To this end, the present invention provides a machining and positioning device for a brake caliper casting, which includes a clamp body;

[0013] A horizontally distributed vertical plate is vertically arranged at the front and rear ends of the top of the clamping body;

[0014] A clamping limit pin and a clamping screw are respectively longitudinally provided through the upper left ends of the two vertical plates;

[0015] The clamping screw is located in front of the clamping limit pin;

[0016] A pressure plate is provided at the opposite end of the clamping limit pin and the clamping screw;

[0017] A set screw is longitudinally provided through the upper right ends of the two vertical plates;

[0018] A third stud bolt is vertically arranged at the middle of the front and rear ends of the clamp body;

[0019] Two third stud bolts are located on opposite sides of the two vertical plates;

[0020] The upper parts of the two third stud bolts are respectively fixedly connected to the front and rear ends of the longitudinally distributed pressure plate;

[0021] The left and right ends of the top of the clamp are respectively provided with a V-shaped block and a limit block;

[0022] The V-shaped block and the limit block are located between the two vertical plates;

[0023] A support seat is vertically arranged at the front and rear ends of the clamp body respectively;

[0024] A first adjustable supporting portion is arranged on the upper portion of each supporting seat.

[0025] In addition, the present invention also provides a brake caliper casting processing system, comprising the brake caliper casting processing positioning device as described above, and a milling machine;

[0026] The milling machine is used to perform multiple milling processes on the upper surface of the caliper arm and the brake rail contact vertical surface of the brake caliper casting by using the face milling cutter thereon.

[0027] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a processing positioning device and a processing system for a brake caliper casting, which are scientifically designed and can position the brake caliper casting to be processed based on the spindle hole to ensure the positioning accuracy, thereby facilitating further processing operations on the upper surface of the caliper arm and the brake rail contact vertical surface of the caliper arm, ensuring the quality of processing, and having great practical significance.

[0028] It should be noted that, for the present invention, the concentricity of the spindle mounting cylinder (i.e., the outer circumference of the spindle hole) and the spindle hole is considered, so the spindle mounting cylinder (i.e., the outer circumference of the spindle hole) is used for positioning, which can reduce the difficulty of positioning and clamping the device;

[0029] In addition, the present invention guides the brake caliper tail by means of a slot limiting method to ensure the verticality of its arm (caliper arm). BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a finished brake caliper;

[0031] Figure 2 A schematic diagram of the three-dimensional structure of a processing positioning device for a brake caliper casting provided by the present invention when the brake caliper casting to be processed is loaded Figure 1 ;

[0032] Figure 3 A schematic diagram of the three-dimensional structure of a processing positioning device for a brake caliper casting provided by the present invention when the brake caliper casting to be processed is loaded Figure 2 ;

[0033] Figure 4a A front view of a machining positioning device for a brake caliper casting provided by the present invention when the brake caliper casting to be machined is loaded;

[0034] Figure 4b A top view of a machining positioning device for a brake caliper casting provided by the present invention when the brake caliper casting to be machined is loaded;

[0035] Figure 4c A left side view of a machining positioning device for a brake caliper casting provided by the present invention when the brake caliper casting to be machined is loaded;

[0036] Figure 5 A top view of a clamping body in a machining and positioning device for a brake caliper casting provided by the present invention;

[0037] Figure 6a A front view of a V-shaped block in a machining and positioning device for a brake caliper casting provided by the present invention;

[0038] Figure 6b A left side cross-sectional view of a V-block in a machining and positioning device for a brake caliper casting provided by the present invention;

[0039] Figure 6c A top view of a V-block in a machining and positioning device for a brake caliper casting provided by the present invention;

[0040] Figure 6d A schematic diagram of a three-dimensional structure of a V-block in a machining and positioning device for a brake caliper casting provided by the present invention;

[0041] Figure 7 A cross-sectional view of a limit block in a machining and positioning device for a brake caliper casting provided by the present invention;

[0042] Figure 8 A front view of a second adjustable support portion in a machining and positioning device for a brake caliper casting provided by the present invention;

[0043] Fig. 9 A top view of a clamping limit pin in a machining and positioning device for a brake caliper casting provided by the present invention;

[0044] Fig.10 A top view of a clamping screw in a machining and positioning device for a brake caliper casting provided by the present invention;

[0045] In the figure: 1-clamp body, 2-V-block, 3-limit block, 4-check block, 5-support seat;

[0046] 6-clamping limit pin, 7-pressure plate, 8-first adjustable support part, 9-second adjustable support part; 10-clamping screw;

[0047] 11-first set screw, 121-first stud bolt, 122-second stud bolt, 13-positioning key, 14-pressing plate, 15-third stud bolt;

[0048] 16-shoulder hexagonal nut, 17-hexagonal nut (specification M24), 18-hexagon socket screw (specification M12×40), 19-first nut (specification M20), 20-second nut (specification M30); 21-second screw (specification M6×16);

[0049] 22-U-shaped groove. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] See also Figures 1 to 3 , Figures 4a to 4c , Figure 5 , Figures 6a to 6d , Figures 7 to 10 , the present invention provides a machining and positioning device for a brake caliper casting, comprising a clamp body 1;

[0055] A horizontally distributed vertical plate 1-0 is vertically arranged at the front and rear ends of the top of the clamp body 1;

[0056] The upper left ends of the two vertical plates 1-0 are respectively longitudinally penetrated by a clamping limit pin 6 and a clamping screw 10;

[0057] The clamping screw 10 is located in front of the clamping limit pin 6;

[0058] The opposite ends (i.e. the inner ends) of the clamping limit pin 6 and the clamping screw 10 are respectively provided with a pressure plate 7;

[0059] A set screw 11 is longitudinally provided through the upper right end of each of the two vertical plates 1-0;

[0060] A third stud bolt 15 is vertically disposed at the middle of the front and rear ends of the clamp body 1;

[0061] Two third stud bolts 15 are located on opposite sides of the two vertical plates 1-0;

[0062] The upper parts of the two third stud bolts 15 are respectively fixedly connected to the front and rear ends of the longitudinally distributed pressing plate 14 .

[0063] The left and right ends of the top of the clamp body 1 are respectively provided with a V-shaped block 2 and a limit block 3;

[0064] The V-shaped block 2 and the limit block 3 are located between the two vertical plates 1-0;

[0065] The top of the clamp body 1 is fixedly provided with an inspection block 4 on both sides of the front and rear of the V-shaped block 2;

[0066] A support seat 5 is vertically arranged at the front and rear ends of the clamp body 1 (specifically, the middle left side portion);

[0067] A first adjustable supporting portion 8 is provided on the upper portion of each supporting seat 5 .

[0068] In the present invention, the V-block 2 is used to support the lower part of the spindle mounting cylinder 106 (i.e., the outer circumferential part of the spindle hole 103) of the brake caliper casting 100-0 that needs to be positioned;

[0069] Brake caliper casting 100-0 lateral distribution;

[0070] A limit block 3 equipped with a second adjustable support portion 9, used to limit the right end of the brake caliper casting 100-0;

[0071] The second adjustable support portion 9 on the limiting block 3 is used to support the right end of the brake caliper casting 100 - 0 .

[0072] In the present invention, the opposite sides of the two pressure plates 7 are respectively against the front and rear side surfaces of the spindle mounting cylinder 106 (i.e., the outer circumferential portion of the spindle hole 103) of the brake caliper casting 100-0;

[0073] The opposite sides of the two set screws 11 are respectively against the front and rear side surfaces of the right end of the brake caliper casting 100-0;

[0074] In a specific implementation, the diameter of the pressure plate 7 is smaller than the diameter of the spindle mounting cylinder 106 (ie, the outer circumferential portion of the spindle hole) of the brake caliper casting 100 - 0 , and larger than the aperture of the spindle hole 103 .

[0075] In the present invention, the two first adjustable support portions 8 are respectively against (ie, in close contact with) the front and rear ends of the lower groove 1050 of the caliper arm 105 (ie, the arm) of the brake caliper casting 100-0;

[0076] In the present invention, the pressure plate 14 abuts against (ie, is in close contact with) the top of the middle section of the brake caliper casting 100-0.

[0077] In the present invention, a first stud bolt 121 is longitudinally passed through the lower left ends of the two vertical plates 1-0;

[0078] A second stud bolt 122 is longitudinally passed through the middle of the right ends of the two vertical plates 1-0;

[0079] It should be noted that the first stud bolt 121 and the second stud bolt 122 are used to fix and connect the two vertical plates 1 - 0 to enhance the strength of the overall structure of the device of the present invention.

[0080] For specific implementation, see Figure 2 , Figure 3 , the front and rear ends of the first stud bolt 121 are respectively threadedly fixedly connected with a hexagonal nut 17;

[0081] The hexagonal nut 17 abuts against the side surface of the adjacent vertical plate 1-0 (i.e., is in close contact with each other);

[0082] In specific implementation, the front and rear ends of the second stud bolt 122 are respectively threadedly fixedly connected with a hexagonal nut 17;

[0083] The hexagonal nut 17 abuts against the side surface of the adjacent vertical plate 1-0 (i.e., is in close contact with each other);

[0084] The first stud bolt 121 and the second stud bolt 122 have the same shape and structure;

[0085] In the present invention, in a specific implementation, two front-to-back symmetrical U-shaped grooves 22 are respectively provided on the left and right sides of the clamp body 1;

[0086] In the present invention, in a specific implementation, a positioning key 13 is provided at the middle section of the left and right sides of the clamp body 1;

[0087] The positioning key 13 is connected to the external workbench through a second screw 21 (which is a universal T-shaped screw).

[0088] It should be noted that, for the present invention, the device of the present invention can be installed on a workbench by means of a second screw 21 (which is a universal T-shaped screw).

[0089] In the present invention, see Figure 5 As shown, the left and right ends of the top of the clamp body 1 are respectively provided with a first groove 1a and a second groove 1b;

[0090] A V-shaped block 2 is provided on the first groove 1a;

[0091] A limit block 3 is provided on the second groove 1b;

[0092] In a specific implementation, the V-shaped block 2 is fixed in the middle of the first groove 1 a by a plurality of (eg, four) hexagon socket screws 18 .

[0093] In a specific implementation, the two inspection blocks 4 are fixed to the front and rear portions of the first groove 1 a at the top of the clamp body 1 by two hexagon socket screws 18 , respectively.

[0094] For specific implementation, see Figure 5 As shown, the second groove 1b is a long strip-shaped groove;

[0095] In a specific implementation, the limiting block 3 is fixed on the second groove 1 b by a plurality of (for example, two) hexagon socket screws 18 .

[0096] In the present invention, see Figure 5 , a support seat mounting hole 50 is respectively provided at the front and rear ends (specifically, the middle left side portion) of the clamp body 1;

[0097] Each support base mounting hole 50 is connected to the lower end of a support base 5;

[0098] A first adjustable support portion 8 is provided on the upper portion of each support seat 5;

[0099] In specific implementation, the upper part of each support seat 5 is provided with a support seat internal threaded hole with a top opening;

[0100] The first adjustable support portion 8 has a screw at the bottom thereof, which is threadedly connected to the inner threaded hole of the support seat;

[0101] It should be noted that, for the present invention, the top height of the first adjustable support portion 8 can be adjusted by adjusting the depth of the screw of the first adjustable support portion 8 screwed into the threaded hole in the support seat.

[0102] Furthermore, the screw at the bottom of the first adjustable support portion 8 is also threadedly connected to a hexagonal nut 17 , and the bottom surface of the hexagonal nut 17 abuts against the top surface of the support seat 5 (ie, is in close contact with each other).

[0103] For specific implementation, see Figure 5 , the shape of the support seat mounting hole 50 is circular;

[0104] A connecting column is provided at the center of the bottom of the support seat;

[0105] A connecting column is located in the support base mounting hole 50;

[0106] Furthermore, the support seat mounting hole 50 is in transitional fit with the connecting column at the bottom of the support seat 5. Figure 5 A third stud bolt mounting hole 150 (internal threaded hole) is respectively provided at the middle of the front and rear ends of the clamp body 1;

[0107] Each third stud bolt mounting hole 150 is respectively threadedly fixedly connected to the lower end of a vertically distributed third stud bolt 15;

[0108] Furthermore, the lower end of the third stud bolt 15 is also threadedly fixedly connected to a second nut 20;

[0109] The bottom surface of the second nut 20 abuts against the top surface of the clamp body 1 (i.e., they are in close contact with each other);

[0110] For specific implementation, see Figure 2 , Figure 3 , the upper part of the third stud bolt 15 located at the rear is threadedly fixedly connected with the two first nuts 19;

[0111] The bottom surface of the first nut 19 located below abuts against the top surface of the pressure plate 14 (i.e., they are in close contact).

[0112] In specific implementation, the upper portion of the third stud bolt 15 located in the front is threadedly fixedly connected with a shouldered hexagonal nut 16;

[0113] The bottom surface of the shouldered hexagonal nut 16 abuts against the top surface of the pressing plate 14 (i.e., they are in close contact with each other);

[0114] In specific implementation, the pressure plate 14 is provided with a bolt push-in opening groove 140 at a position corresponding to the third stud bolt 15 located in the front;

[0115] A third stud bolt 15 located in the front, vertically penetrates through the bolt and is pushed into the open groove 140;

[0116] It should be noted that after the upper parts of the two third stud bolts 15 are installed with the pressure plate 14, the third stud bolt 15 located at the rear is fixed with two thin first nuts 19 (specification M20), and then the third stud bolt 15 located at the front is pushed into the bolt opening groove 140 of the pressure plate 14, and then fixed with a shouldered hexagonal nut 16.

[0117] In the present invention, see Figure 5 , a vertical plate hole 1-01 and a nut 1-011 are respectively longitudinally penetrated at the upper left ends of the two vertical plates 1-0;

[0118] Nut 1-011, located in front of the vertical plate hole 1-01;

[0119] A clamping and limiting nail 6 is provided through the vertical plate hole 1-01;

[0120] The vertical plate hole 1-01 and the clamping limit pin 6 are in transitional fit;

[0121] The nut 1-011 is threadedly connected with a clamping screw 10;

[0122] In specific implementation, a second vertical plate threaded hole 1-02 is longitudinally provided on the upper right end of each of the two vertical plates 1-0;

[0123] Each second vertical plate threaded hole 1-02 is threadedly connected with a set screw 11;

[0124] In a specific implementation, the clamping limit pin 6 and the clamping screw 10 are arranged in a front-to-back correspondence.

[0125] In the present invention, a second adjustable supporting portion 9 is provided at the upper right end of the limiting block 3 .

[0126] In specific implementation, the upper right end of the limit block 3 is provided with a limit block internal threaded hole 301 with a top opening;

[0127] The second adjustable support portion 9 has a screw at the bottom thereof, which is threadedly connected to the inner threaded hole 301 of the limit block;

[0128] It should be noted that, for the present invention, the top height of the second adjustable support portion 9 can be adjusted by adjusting the depth of the screw of the second adjustable support portion 9 screwed into the threaded hole 301 in the limit block.

[0129] Furthermore, the screw rod provided at the lower part of the second adjustable support part 9 is also threadedly connected with a hexagonal nut 17 , and the bottom surface of the hexagonal nut 17 abuts against the top surface of the limit block 3 (ie, they are in close contact with each other).

[0130] In the present invention, in a specific implementation, the height of the upper plane of the second adjustable support portion 9 is the same as the height of the top surfaces of the two inspection blocks 4 and is located on the same horizontal plane.

[0131] It should be noted that since the brake caliper blank is a casting with a rough surface, a second adjustable support portion 9 that can be fine-tuned is designed to adapt to different castings. Moreover, the upper surface of the second adjustable support portion 9 is a circular surface with a concave middle, which is also to reduce the contact area and prevent the roughness of the casting (i.e., the casting) from affecting the machining.

[0132] In the present invention, in a specific implementation, support plates are respectively provided on the front and rear sides of the V-shaped block 2;

[0133] The upper parts of the two support plates are respectively provided with longitudinally distributed working support grooves 202;

[0134] Between the two support plates, there is a protrusion exposed groove 201 which is distributed transversely and opens upward;

[0135] The protruding portion exposed groove 201 is used to accommodate the protruding portion 1030 of the spindle mounting cylinder 106 (i.e., the outer circumferential portion of the spindle hole 103) of the brake caliper casting 100-0;

[0136] The working support groove 202 abuts against (is in close contact with) the lower portion of the spindle mounting cylinder 106 (i.e., the outer circumferential portion of the spindle hole 103) of the brake caliper casting 100-0;

[0137] The longitudinal width of the protrusion 1030 is smaller than the longitudinal width of the spindle mounting cylinder 106 (i.e., the outer circumferential portion of the spindle hole 103);

[0138] The longitudinal width of the protruding portion exposed in the groove 201 is smaller than the longitudinal width of the spindle mounting cylinder 106 (ie, the outer circumferential portion of the spindle hole 103 ).

[0139] It should be noted that see Figure 6d As shown, the front and rear support plates of the V-shaped block 2 are respectively provided with through holes for the first stud bolts 121 to pass through at positions corresponding to the first stud bolts 121 .

[0140] In the present invention, in a specific implementation, a workpiece passing groove 302 is provided at the top of the left end of the limit block 3;

[0141] The workpiece passes through the groove 302 to laterally pass through the right end of the brake caliper casting 100-0; the second adjustable support portion 9 at the top of the limit block 3 contacts the tail bottom surface 104 of the right end of the brake caliper casting 100-0.

[0142] It should be noted that, in order to avoid over-positioning, the top of the limit block 3 is milled down to avoid air gaps, and only the second adjustable support portion 9 is used to abut against the tail bottom surface 104 of the brake caliper casting 100-0.

[0143] In a specific implementation, the right end of the tail bottom surface 104 of the brake caliper casting 100 - 0 also abuts against (ie, is in close contact with) the upper plane of the second adjustable support portion 9 ;

[0144] Based on the machining and positioning device for a brake caliper casting provided by the present invention, the present invention further provides a machining system for a brake caliper casting, which comprises the machining and positioning device for a brake caliper casting as described above, and a milling machine;

[0145] The milling machine is used to perform milling processing on the upper surface 101 of the caliper arm and the brake rail contact vertical surface 102 of the brake caliper casting 100-0 in batches through the face milling cutter thereon, so that the two surfaces are processed into smooth surfaces and the surface quality is improved.

[0146] In the present invention, in specific implementation, a milling machine refers to a machine tool that uses a milling cutter to process various surfaces of a workpiece. It is a well-known mechanical processing equipment in the prior art and will not be described in detail here.

[0147] In order to more clearly understand the technical solution of the present invention, the working process of the present invention is described below.

[0148] First, Figure 4a The upper plane of the second adjustable support part 9 is leveled by a height gauge and two inspection blocks 4, that is, adjusted to the same horizontal height;

[0149] It should be noted that when the brake caliper casting 100-0 is placed on the working support groove 202 on the upper part of the V-block 2, the top height of the inspection block 4 is the same as the center point height of the main shaft hole 103 of the brake caliper casting 100-0. In other words, the top surface height of the inspection block 4 is the center point height of the main shaft hole 103 of the brake caliper casting 100-0, which is used as a reference.

[0150] It should be noted that, through the adjustment of the second adjustable support portion 9, the center point height of the spindle hole 103 of the brake caliper casting 100-0 can be made the same as the height of the tail bottom surface 104 at the right end of the brake caliper casting 100-0.

[0151] Then, the spindle mounting cylinder 106 (i.e., the outer circumferential portion of the spindle hole 103) of the brake caliper casting 100-0 is abutted against the working support groove 202 on the upper portion of the V-block 2 in the device of the present invention, and at the same time, the tail bottom surface 104 of the brake caliper casting 100-0 falls into the workpiece passing groove 302 of the limit block 3, and the tail bottom surface 104 of the brake caliper casting 100-0 is abutted against the upper plane of the second adjustable support portion 9;

[0152] At the same time, a pressure plate 7 located at the rear of the device of the present invention is directed toward the rear side of the brake caliper casting 100-0, and is abutted against the rear side of the spindle mounting cylinder 106 (i.e., the outer circumferential portion of the spindle hole 103) of the brake caliper casting 100-0, see Figure 4a shown.

[0153] Then, adjust the two first adjustable support parts 8 in the device of the present invention so that the upper plane of the first adjustable support parts abuts against the surface of the lower groove 1050 of the arm (i.e., the caliper arm 105) of the brake caliper casting 100-0. At this time, use a probe to measure whether the front and rear ends of the caliper arm 105 (arm) are on a longitudinal straight line. If so, the clamping operation can be performed. Specifically, first tighten the clamping screw 10 located in the front so that the two pressure plates 7 cooperate with each other front and back, and abut the front and rear side surfaces of the spindle mounting cylinder 106 (i.e., the outer cylindrical part of the spindle hole 103) of the brake caliper casting 100-0. Then, use two set screws 11 to simultaneously clamp the front and rear side surfaces of the right end (i.e., the tail) of the brake caliper casting 100-0. Figure 4c The middle pressure plate 14 rotates to abut against the top of the middle section of the brake caliper casting 100-0, and the shouldered hexagonal nut 16 is screwed downward until the pressure plate 14 abuts against the top of the middle section of the brake caliper casting 100-0, completing the clamping operation of the brake caliper casting 100-0 to be processed;

[0154] Then, start the milling machine and use the face milling cutter to perform milling on the upper surface 101 of the caliper arm and the brake rail contact vertical surface 102 close to the arm of the workpiece to be processed (i.e., the brake caliper casting 100-0) in batches, so that the two surfaces are processed into smooth surfaces, the surface quality is improved, and a brake caliper 1 with the upper surface 101 of the caliper arm and the brake rail contact vertical surface 102 processed is obtained.

[0155] Compared with the prior art, the machining and positioning device for brake caliper castings provided by the present invention has the following beneficial effects:

[0156] 1. The present invention can position the spindle mounting cylinder 106 (i.e., the outer circumferential portion of the spindle hole 103) by using a V-block 2. Through this positioning, the upper surface 101 of the clamp arm 105 and the brake rail contact vertical surface 102 are processed, which is beneficial to ensure the relative processing size and shape and position tolerance of the workpiece.

[0157] 2. By applying the present invention, the marking process of workers can be reduced, which is conducive to further realizing the processing operation of the brake caliper and improving the processing efficiency;

[0158] 3. By applying the present invention, the problem of processing brake caliper castings is solved. The present invention has a reasonable structure, convenient and fast operation, accurate and reliable processing accuracy, and greatly improves work efficiency.

[0159] 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 machining and positioning device for a brake caliper casting, characterized in that: The invention comprises a clamp body (1); A horizontally distributed vertical plate (1-0) is vertically arranged at the front and rear ends of the top of the clamp body (1); A clamping limit pin (6) and a clamping screw (10) are respectively longitudinally provided on the upper left ends of the two vertical plates (1-0); A clamping screw (10) is located in front of the clamping limit pin (6); A pressure plate (7) is provided at the opposite end of the clamping limit pin (6) and the clamping screw (10); A set screw (11) is longitudinally penetrated through the upper right ends of the two vertical plates (1-0); A third stud bolt (15) is vertically arranged at the middle of the front and rear ends of the clamp body (1); Two third stud bolts (15) are located on opposite sides of the two vertical plates (1-0); The upper parts of the two third stud bolts (15) are respectively fixedly connected to the front and rear ends of the longitudinally distributed pressing plate (14); A V-shaped block (2) and a limit block (3) are respectively arranged at the left and right ends of the top of the clamp body (1); The V-shaped block (2) and the limit block (3) are located between the two vertical plates (1-0); A support seat (5) is vertically arranged at the front and rear ends of the clamp body (1); A first adjustable supporting portion (8) is provided on the upper portion of each supporting seat (5).

2. The machining and positioning device for brake caliper casting according to claim 1, characterized in that: A V-shaped block (2) for supporting the lower portion of a main shaft mounting cylinder (106) of a brake caliper casting (100-0) that needs to be positioned; A limit block (3) equipped with a second adjustable support portion (9) for limiting the right end of the brake caliper casting (100-0); The second adjustable support portion (9) on the limit block (3) is used to support the right end of the brake caliper casting (100-0); The pressure plate (14) abuts against the top of the middle section of the brake caliper casting (100-0).

3. The machining and positioning device for brake caliper casting according to claim 1, characterized in that: The opposite sides of the two pressure plates (7) are respectively against the front and rear side surfaces of the main shaft mounting cylinder (106) of the brake caliper casting (100-0); The opposite sides of the two set screws (11) are respectively against the front and rear side surfaces of the right end of the brake caliper casting (100-0); The two first adjustable support parts (8) are respectively abutted against the front and rear ends of the lower groove (1050) of the caliper arm (105) of the brake caliper casting (100-0).

4. The machining and positioning device for brake caliper casting according to claim 1, characterized in that: A first stud bolt (121) passes longitudinally through the lower left ends of the two vertical plates (1-0); A second stud bolt (122) passes longitudinally through the middle of the right ends of the two vertical plates (1-0); The front and rear ends of the first stud bolt (121) are respectively threadedly fixedly connected to a hexagonal nut (17); The front and rear ends of the second stud bolt (122) are respectively threadedly fixedly connected to a hexagonal nut (17); The first stud bolt (121) and the second stud bolt (122) have the same shape and structure; and / or, An inspection block (4) is fixedly arranged on the top of the clamp body (1) at the front and rear sides of the left end of the V-shaped block (2); When the brake caliper casting (100-0) is placed on the working support groove (202) on the upper part of the V-shaped block (2), the top height of the inspection block (4) is the same as the center point height of the main shaft hole (103) of the brake caliper casting (100-0).

5. The machining and positioning device for brake caliper casting according to claim 1, characterized in that: The left and right ends of the top of the clamp body (1) are respectively provided with a first groove (1) a and a second groove (1) b; A V-shaped block (2) is arranged on the first groove (1) a; A limiting block (3) is arranged on the second groove (1) b; A V-shaped block (2) is fixed to the middle of the first groove (1) a by a plurality of hexagon socket screws (18); Two inspection blocks (4) are fixed to the front and rear of the first groove (1) a at the top of the clamp body (1) respectively by two hexagon socket screws (18); The limit block (3) is fixed on the second groove (1) b by a plurality of hexagon socket screws (18); and / or, A workpiece passing groove (302) is provided at the top of the left end of the limiting block (3).

6. The machining and positioning device for brake caliper casting according to claim 1, characterized in that: A support seat mounting hole (50) is respectively provided at the front and rear ends of the clamp body (1); Each support base mounting hole (50) is connected to the lower end of a support base (5); A first adjustable support portion (8) is provided on the upper portion of each support seat (5); The upper part of each support seat (5) is provided with a support seat internal threaded hole with a top opening; The lower part of the first adjustable support part (8) has a screw which is threadedly connected with the inner threaded hole of the support seat.

7. The machining and positioning device for brake caliper casting according to claim 1, characterized in that: A third stud bolt mounting hole (150) is respectively provided at the middle of the front and rear ends of the clamp body (1); Each third stud bolt installation hole (150) is respectively threadedly fixedly connected to the lower end of a vertically distributed third stud bolt (15); The upper part of the third stud bolt (15) located at the rear is threadedly fixedly connected with the two first nuts (19); The bottom surface of the first nut (19) located below abuts against the top surface of the pressing plate (14); The upper portion of the third stud bolt (15) located at the front is threadedly fixedly connected to a shouldered hexagonal nut (16); The bottom surface of the shouldered hexagonal nut (16) abuts against the top surface of the pressing plate (14); The pressure plate (14) is provided with a bolt push-in opening groove (140) at a position corresponding to the third stud bolt (15) located in the front; The third stud bolt (15) located in the front vertically penetrates through the bolt push-in opening groove (140).

8. The machining and positioning device for brake caliper casting according to claim 1, characterized in that: A vertical plate hole (1-01) and a nut (1-011) are respectively longitudinally penetrated at the upper left ends of the two vertical plates (1-0); Nut (1-011), located in front of the vertical plate hole (1-01); A clamping and limiting nail (6) is provided through the vertical plate hole (1-01); The nut (1-011) is threadedly connected to a clamping screw (10); A second vertical plate threaded hole (1-02) is longitudinally penetrated through the upper right ends of the two vertical plates (1-0); Each second vertical plate threaded hole (1-02) is threadedly connected to a set screw (11); and / or, A second adjustable support portion (9) is provided at the upper right end of the limit block (3); The upper right end of the limit block (3) is provided with a limit block internal threaded hole (301) with a top opening; The second adjustable support portion (9) has a screw at the bottom thereof, which is threadedly connected to the inner threaded hole (301) of the limit block; The right end of the tail bottom surface (104) of the brake caliper casting (100-0) abuts against the upper plane of the second adjustable support part (9).

9. The machining and positioning device for brake caliper casting according to any one of claims 1 to 8, characterized in that: Support plates (200) are respectively provided on the front and rear sides of the V-shaped block (2); The upper parts of the two support plates (200) are respectively provided with longitudinally distributed working support grooves (202); A convex portion exposure groove (201) is arranged between the two support plates and is distributed transversely and opens upward; The protruding portion exposes the groove (201) and is used to accommodate the protruding portion (1030) on the left side of the main shaft mounting cylinder (106) of the brake caliper casting (100-0); A working support groove (202) abuts against a lower portion of a main shaft mounting cylinder (106) of a brake caliper casting (100-0); The longitudinal width of the protruding portion (1030) is smaller than the longitudinal width of the main shaft mounting cylinder (106); The longitudinal width of the protruding portion exposed in the groove (201) is smaller than the longitudinal width of the main shaft mounting cylinder (106).

10. A processing system for a brake caliper casting, characterized in that: A machining and positioning device for a brake caliper casting comprising any one of claims 1 to 9, and a milling machine; The milling machine is used for performing multiple milling processing on the upper surface (101) of the caliper arm and the brake rail contact vertical surface (102) of the brake caliper casting (100-0) through the face milling cutter thereon.

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